CN223520873U

CN223520873U - A central braking system and medical device

Info

Publication number: CN223520873U
Application number: CN202423271106.3U
Authority: CN
Inventors: 张自全; 彭泽波; 闻顺
Original assignee: Shenzhen Wisonic Medical Technology Co ltd
Current assignee: Shenzhen Wisonic Medical Technology Co ltd
Priority date: 2024-12-30
Filing date: 2024-12-30
Publication date: 2025-11-07
Anticipated expiration: 2034-12-30

Abstract

This application provides a central braking system and medical device, relating to the field of medical device technology. It includes multiple central control wheel assemblies, a base, a main transmission mechanism, and a bidirectional pedal. The bidirectional pedal includes a first sub-pedal and a second sub-pedal, with a set angle between them less than 180°. The power end of the main transmission mechanism is connected to the bidirectional pedal and is respectively disposed on both sides of the base. The control end of the main transmission mechanism is connected to the multiple central control wheel assemblies, each containing a braking mechanism. When the first sub-pedal is depressed, the bidirectional pedal provides power to the main transmission mechanism, which in turn controls the braking mechanisms of the multiple central control wheel assemblies to brake. When the second sub-pedal is depressed, the bidirectional pedal provides power to the main transmission mechanism, which in turn controls the braking mechanisms of the multiple central control wheel assemblies to release the brakes. This improves the system's ease of operation and human-machine interface.

Description

Central braking system and medical equipment

Technical Field

The application relates to the technical field of medical equipment, in particular to a central braking system and medical equipment.

Background

Along with the development of science and technology, more and more technologies are applied to the medical field, so that a plurality of medical equipment convenient for people are created, part of medical resources are liberated, and great positive influence is generated on medical treatment. Some medical devices have a large volume and weight, such as anesthesia machines, ventilators, and the like. For convenience, wheels are typically mounted on medical equipment for movement, whereby a central braking system is also required to control the braking or de-braking of the wheel mounted medical equipment.

In the related art, the central braking system is a control system for controlling a plurality of casters to brake or brake by means of one braking mechanism, is not influenced by the direction of the wheels, and can realize the simultaneous braking or brake by means of controlling the pedal assembly which is arranged independently, so that the efficiency and the operation convenience can be effectively improved. The central braking system of current mainstream has two pedal formula braking systems and single pedal formula braking system, and wherein, two pedal formula braking systems adopt a pedal control truckle brake, and another pedal control truckle brake of releasing, and single pedal formula braking system adopts the different operation methods control truckle brake of same footboard and brake of releasing, and truckle brake when stepping on the footboard, truckle brake of releasing when hooking the footboard. It is known that the dual pedal brake system is inconvenient to operate, two pedals are required to be operated respectively, while the single pedal brake system is convenient to operate, the brake pedal is not easy to confuse and unbuckle, and is wider in practical application, but in operation, the single pedal brake system is required to realize the functions of braking and unbuckling by stepping on and hooking and resetting the single pedal, and the instep is required to be hooked and reset when the pedal is unbuckled, so that the instep is easy to be injured, and the man-machine interaction is poor.

Accordingly, there is a need to redesign a central braking system and medical equipment, and to overcome the above-mentioned drawbacks.

Disclosure of Invention

The embodiment of the application provides a central braking system and medical equipment, which are used for improving the system operation convenience and man-machine interaction.

In a first aspect, an embodiment of the present application provides a central braking system, including a plurality of central wheel assemblies, a base, a main transmission mechanism, and a bidirectional pedal, where the bidirectional pedal includes a first sub pedal and a second sub pedal, and a set angle is provided between the first sub pedal and the second sub pedal, and the set angle is smaller than 180 °;

the power end of the main transmission mechanism is connected with the two-way pedal, and the main transmission mechanism and the two-way pedal are respectively arranged at two sides of the base;

the control end of the main transmission mechanism is connected with the plurality of central control wheel assemblies, and a braking mechanism is arranged in each central control wheel assembly;

When the first sub pedal is stepped on, the bidirectional pedal provides power for the main transmission mechanism, and the main transmission mechanism controls the braking mechanisms of the plurality of central control wheel assemblies to brake;

When the second sub pedal is stepped on, the bidirectional pedal provides power for the main transmission mechanism, and the main transmission mechanism controls the braking mechanisms of the plurality of central control wheel assemblies to release braking.

Optionally, the main transmission mechanism comprises a first transmission mechanism, a second transmission mechanism, a first crank, a second crank and a torsion shaft;

The first transmission mechanism and the second transmission mechanism are arranged on one side of the base, and the bidirectional pedal is arranged on the other side of the base;

The control end of the first transmission mechanism is connected with at least one central control wheel assembly, the power end of the first transmission mechanism is connected with the first end of the first crank, and the second end of the first crank passes through the base to be connected with the two-way pedal;

The control end of the second transmission mechanism is connected with at least one central control wheel assembly, and the power end of the second transmission mechanism is connected with the first end of the second crank;

When the bidirectional pedal is stepped on, the bidirectional pedal provides power for the first transmission mechanism through the first crank, controls the braking mechanism of at least one central control wheel assembly connected with the first transmission mechanism to brake or brake off, and provides power for the second transmission mechanism through the torsion shaft connecting the first crank and the second crank, and controls the braking mechanism of at least one central control wheel assembly connected with the second transmission mechanism to brake or brake off.

Optionally, the first transmission mechanism comprises a first transmission rod and at least one first control piece, and the second transmission mechanism comprises a second transmission rod and at least one second control piece;

the first transmission rod is respectively connected with a first end shaft of the at least one first control piece, a second end of the first control piece is connected with a braking mechanism of the central control wheel assembly, and the first transmission rod is connected with a first end shaft of the first crank;

The second transmission rod is respectively connected with a first end shaft of the at least one second control piece, a second end of the second control piece is connected with a braking mechanism of the central control wheel assembly, and the second transmission rod is connected with a first end shaft of the second crank;

When the bidirectional pedal is stepped on, the bidirectional pedal provides power for the first transmission rod through the first crank, the first transmission rod drives the first end of the first control piece to swing, the second end of the first control piece controls the braking mechanism of the corresponding central control wheel assembly to brake or brake release, the torque force connecting the first crank and the second crank is used for providing power for the second transmission rod, the second transmission rod drives the first end of the second control piece to swing, and the second end of the second control piece controls the braking mechanism of the corresponding central control wheel assembly to brake or brake release.

Optionally, the first transmission rod is provided with a plurality of first rod holes, and the second transmission rod is provided with a plurality of second rod holes;

The first end of the first control member is branched to form two first support legs, the tail ends of the first support legs are provided with first support leg holes, and a support shaft penetrates through the first support leg holes and corresponding first rod holes on the first transmission rod to connect the first end of the first control member with the first transmission rod shaft;

The first end of the first crank is branched to form two first tangs, the tail end of the first tang is provided with a first tang hole, and a support shaft penetrates through the first tang hole and a corresponding first rod hole on the first transmission rod to connect the first end of the first crank with the first transmission rod shaft;

The first end of the second control piece is branched to form two second support legs, the tail ends of the second support legs are provided with second support leg holes, and a support shaft penetrates through the second support leg holes and corresponding second rod holes on the second transmission rod to connect the first end of the second control piece with the second transmission rod shaft;

The first end of the second crank is branched to form two second tangs, the tail end of the second tang is provided with a second tang hole, and a supporting shaft penetrates through the second tang hole and a corresponding second rod hole on the second transmission rod to connect the first end of the second crank with the second transmission rod shaft.

Alternatively to this, the method may comprise,

The second end of the first control end is provided with a first positioning hole, and a first brake shaft of a brake mechanism of the corresponding central control wheel assembly is clamped in the first positioning hole so as to fixedly connect the second end of the first control piece with the first brake shaft;

the second end of the second control end is provided with a second positioning hole, and a second braking shaft of a braking mechanism of the corresponding central control wheel assembly is clamped in the second positioning hole so as to fixedly connect the second end of the second control piece with the second braking shaft;

When the bidirectional pedal is stepped, the bidirectional pedal drives the first end of the first control piece to swing through the first transmission rod connected with the first crank, so that the first braking shaft at the second end of the first control piece obtains torsion to control the braking mechanism of the corresponding central control wheel assembly to brake or brake release, the torsion force connected with the first crank and the second crank is used for providing power for the second transmission rod, and the second transmission rod connected with the second crank is used for driving the first end of the second control piece to swing, so that the second braking shaft at the second end of the second control piece obtains torsion force to control the braking mechanism of the corresponding central control wheel assembly to brake or brake release.

Optionally, the first brake shaft is connected with a first support seat shaft, the second brake shaft is connected with a second support seat shaft, and the first support seat and the second support seat are respectively fixed on the base;

The first end of the torsion shaft is connected with a first bearing seat shaft, the second end of the torsion shaft is connected with a second bearing seat shaft, and the first bearing seat and the second bearing seat are respectively fixed on the base.

Optionally, the first surface of the bi-directional pedal is provided with an anti-slip structure, and the first surface is a surface opposite to the second surface, where the bi-directional pedal is connected with the first crank.

Optionally, a magnetic absorption buffer assembly is arranged on the base, the magnetic absorption buffer assembly comprises a magnet fixing plate, a first magnet, a buffer pad and a magnetic absorption parent component, a second magnet is arranged on the second surface of the bidirectional pedal, and the second magnet and the magnetic absorption buffer assembly are oppositely arranged;

The magnet fixing plate is fixedly arranged on the base, the buffer cushion and the first magnet are alternately paved on the same plane, and are fixed on the magnet fixing plate through the magnetic attraction parent piece;

When the bidirectional pedal is stepped on, the second magnet is in attractive contact with the first magnet on the magnetic buffer assembly.

Optionally, the central control wheel assembly comprises a central control wheel fixing sleeve and a central control wheel, the central control wheel is fixedly arranged at a first end of the central control wheel fixing sleeve, a second end of the central control wheel fixing sleeve is fixedly arranged on the base, and a braking structure is arranged in the central control wheel and is connected with the first braking shaft or the second braking shaft.

In a second aspect, an embodiment of the present application provides a medical device comprising a central braking system according to any one of the first aspects.

The application has the following beneficial effects:

the central braking system comprises a plurality of central control wheel assemblies, a base, a main transmission mechanism and a bidirectional pedal, wherein the bidirectional pedal comprises a first sub pedal and a second sub pedal with set angles, the set angles are smaller than 180 degrees, the main transmission mechanism is connected with the bidirectional pedal and the plurality of central control wheel assemblies, when the first sub pedal is stepped on, the bidirectional pedal provides power in one direction for the main transmission mechanism to control braking of the braking mechanisms of the plurality of central control wheel assemblies, when the second sub pedal is stepped on, the bidirectional pedal provides power in the opposite direction for the main transmission mechanism to control braking of the braking mechanisms of the plurality of central control wheel assemblies. That is, the present application can realize braking and unbraking by stepping on one bi-directional pedal, and compared with the two pedals in the related art which control braking and unbraking respectively, the present application is convenient for operation of the bi-directional pedal, and compared with the single pedal stepping and hooking resetting control braking and unbraking in the related art, the present application does not need to hook the pedal with the instep, and has better man-machine interaction.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the provided drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a central braking system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a central brake system according to an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of a first transmission mechanism according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of a second transmission mechanism according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a central control wheel assembly to which embodiments of the present application are applied;

FIG. 7 is a schematic diagram of a bi-directional pedal structure to which embodiments of the present application are applied;

FIG. 8 is a schematic diagram of a magnetic structure to which embodiments of the present application are applied;

fig. 9 is a schematic structural diagram of another magnetic structure to which the embodiment of the present application is applied.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. Embodiments of the application and features of the embodiments may be combined with one another arbitrarily without conflict.

In the description of the present application, "at least one" means one or more, wherein a plurality means two or more. In view of this, the term "plurality" may also be understood as "at least two" in embodiments of the present application. In addition, it should be understood that in the description of the present application, the words "first," "second," and the like are used merely for distinguishing between the descriptions and not for indicating or implying any relative importance or order.

It should be noted that in embodiments of the present application, "connected" is understood to mean mechanically connected, and the connection of one component/assembly/part to another component/assembly/part may be direct or indirect. For example, a may be directly connected to B, or indirectly connected to B through one or more other components and/or assemblies and/or parts, for example, a may be directly connected to B, or a may be directly connected to C, which may be directly connected to B, where a connection is implemented through C.

In the trolley of the traditional medical equipment, a plurality of casters with braking and unbraking functions are usually arranged, if the trolley is required to be reliably stopped, each caster needs to be independently locked, and the trolley needs to be turned in the moving process, so that one trolley is generally provided with at least 2 universal movable casters, when the trolley is stopped, the position of a brake pedal on the universal movable casters can be stopped at each position, if the pedal on the casters rotates to the bottom of the trolley, a manual rotating machine is required to leak the brake pedal on the casters, the casters can be locked, and correspondingly, a plurality of casters need to be respectively operated on a plurality of casters, so that the form of the trolley of the traditional locked medical equipment has relatively influence on the efficiency and has certain safety hidden trouble. In the following continuous improvement, a central braking system is designed, and the braking or the braking release of a plurality of casters can be controlled respectively and simultaneously through two pedals, or the braking release of the casters can be controlled respectively and simultaneously through stepping on or hooking and resetting a single pedal. Although the brake system of the traditional medical equipment trolley is greatly improved, the two pedals are still required to be operated respectively by the double-pedal brake system, the problem of inconvenient operation still exists, the single-pedal brake system can only operate one pedal, but the back of the foot is easily injured by the hooking and resetting operation, the man-machine interaction is poor, the problem of unchanged operation still exists, and the single-pedal brake system also has the problems of complex structure, large occupied space and labor saving operation. For example, in the related document CN201621455155.5, a central braking system and a medical device base are described, firstly, the scheme can adopt a single pedal to realize the functions of braking and unbraking, but the instep is required to be hooked up and reset when unbraking, the instep is easy to be injured, the man-machine interaction is poor, and secondly, the scheme lacks a necessary labor-saving mechanism in the force transmission process, when four casters are unlocked at the same time, the stepping force is large, and the operation experience of a user is affected. For example, in the caster device of CN201310237343.5, there is also a disadvantage that the pedal needs to be hooked to achieve unlocking and resetting. For another example, in the solution provided by the central control brake system and the cart type movable medical equipment described in cn201010501406.X, although the problems of poor man-machine interaction and inconvenient operation can be solved, the whole structure of the implementation mode is relatively huge, and occupies a large space of the base, so that the placement of other parts in the base is not facilitated, and the space utilization rate of the parts of the whole machine is reduced.

In view of this, in the central braking system provided by the embodiment of the application, when the bi-directional pedal is stepped on, the main transmission mechanism controls the plurality of central control wheel assemblies to brake or brake, specifically, the first sub pedal is stepped on to provide power in one direction for the main transmission mechanism, the plurality of central control wheel assemblies are controlled to brake, the second pedal is stepped on to provide power in the opposite direction for the main transmission mechanism, and the plurality of central control wheel assemblies are controlled to brake. Therefore, the system operation convenience and the man-machine interaction can be improved through a simple structure.

The following description is made for some simple descriptions of application scenarios applicable to the technical solution of the embodiment of the present application, and it should be noted that the application scenarios described below are only used for illustrating the embodiment of the present application, but not limiting. In the specific implementation process, the technical scheme provided by the embodiment of the application can be flexibly applied according to actual needs.

The scheme provided by the embodiment of the application can be suitable for application scenes of most central braking systems, for example, the central braking system provided by the embodiment of the application can be applied to medical equipment such as respirators, anesthesia machines, carts, pushing beds, operating tables and the like, and can be practically used in various fields such as household movable storage racks, movable furniture and the like, and the examples are omitted.

In the following, a central braking system provided by an exemplary embodiment of the present application will be described with reference to the accompanying drawings in conjunction with the above-described application scenario, it should be noted that the above-described application scenario is only shown for the convenience of understanding the spirit and principle of the present application, and the embodiment of the present application is not limited in any way in this respect.

Referring to fig. 1, a schematic structural diagram of a central braking system according to an embodiment of the present application is provided, the central braking system includes a plurality of central control wheel assemblies 104, a base 105, a main transmission mechanism 103, and a bi-directional pedal, the bi-directional pedal includes a first sub-pedal 101 and a second sub-pedal 102, a set angle is provided between the first sub-pedal 101 and the second sub-pedal 102, and the set angle is smaller than 180 °;

The power end of the main transmission mechanism 103 is connected with a two-way pedal, and the main transmission mechanism 103 and the two-way pedal are respectively arranged at two sides of the base 105;

The control end of the main transmission mechanism 103 is connected with a plurality of central control wheel assemblies 104, and a brake mechanism is arranged in each central control wheel assembly 104;

Wherein, when the first sub pedal 101 is stepped on, the bi-directional pedal provides power to the main transmission mechanism 103, and the braking mechanism of the plurality of central control wheel assemblies 104 is controlled to brake through the main transmission mechanism 103;

When the second sub pedal 102 is stepped on, the bi-directional pedal supplies power to the main transmission mechanism 103, and the brake mechanism of the plurality of center wheel assemblies 104 is controlled to release brake by the main transmission mechanism 103.

In one embodiment, the first sub pedal 101 and the second sub pedal 102 may be integrally formed, or the first sub pedal 101 and the second sub pedal 102 may be integrally connected in a combined and fixed manner, and a set angle is formed between the first sub pedal 101 and the second sub pedal 102, and the set angle is smaller than 180 ° and the opening of the set angle faces away from the ground, so that the first sub pedal 101 or the second sub pedal 102 is conveniently stepped on to toggle the main transmission mechanism 103.

In one embodiment, the main transmission 103 may transmit power in a first direction obtained by stepping on the first sub pedal 101 to the braking mechanisms of the plurality of center wheel assemblies to control the center wheel brakes, and transmit power in a second direction obtained by stepping on the second sub pedal 102 to the braking mechanisms of the plurality of center wheel assemblies to control the center wheel brakes, wherein the first direction and the second direction are opposite to each other. Therefore, the brake and the brake can be realized by stepping on a two-way pedal, the operation is convenient, and the man-machine interaction can be improved.

In one embodiment, as shown in fig. 2, a schematic structural diagram of a central braking system according to an embodiment of the present application is provided, wherein a first sub-pedal 201 and a second sub-pedal 202 of a bi-directional pedal, a main transmission mechanism 203 and a plurality of central control wheel assemblies 204. Specifically, the bi-directional pedal may be fixedly connected to the transmission handle 205, the transmission handle 205 is connected to the brake torsion shaft 206, the brake torsion shaft 206 is connected to the central control wheel assembly 204 and is connected to the brake mechanism in the corresponding central control wheel assembly 204, the brake torsion shaft 206 is further connected to the first swing arm 207, the first swing arm 207 is connected to the second swing arm 209 through the transmission shaft 208, the second swing arm 209 is connected to the brake 210 in the corresponding central control wheel assembly 204, based on this, when the first sub-pedal 201 or the second sub-pedal 202 of the bi-directional pedal is stepped on, the transmission handle 205 converts the power to the brake torsion shaft 206 into a torque force, the torque force brakes or releases the central control wheel assembly 204 connected to the brake torsion shaft 206 through the brake torsion shaft 206, meanwhile, the brake torsion shaft 206 drives the first swing arm 207 to swing, one end of the first swing arm 207 drives the transmission shaft 208 and the second swing arm 209, and the second swing arm 209 drives the brake 210 to brake or release the corresponding central control wheel assembly 204. That is, the connection manner of the bidirectional pedal and the main transmission mechanism 203, the connection manner of the main transmission mechanism 203 and the plurality of center control wheel assemblies 204, and the specific structures of the main transmission mechanism 203 and the plurality of center control wheel assemblies 204 may be various, and may be set according to the needs in the specific implementation.

Based on the central braking system shown in fig. 1, an embodiment of the present application provides a transmission mechanism, as shown in fig. 3, the main transmission mechanism 300 includes a first transmission mechanism 303, a second transmission mechanism 307, a first crank 302, a second crank 306 and a torsion shaft 305, wherein the first transmission mechanism 303 and the second transmission mechanism 307 are disposed on one side of the base, and the bidirectional pedal 301 is disposed on the other side of the base;

The control end of the first transmission mechanism 303 is connected with at least one central control wheel assembly 304, the power end of the first transmission mechanism 303 is connected with the first end of a first crank 302, and the second end of the first crank 302 passes through the base to be connected with a two-way pedal 301;

The control end of the second transmission mechanism 307 is connected with at least one central control wheel assembly 304, and the power end of the second transmission mechanism 307 is connected with the first end of the second crank 306, a second crank shaft hole is arranged on the second end of the second crank 306, and the second end of the torsion shaft 305 stretches into the second crank shaft hole to form fixed connection;

When the bi-directional pedal 301 is stepped on, the bi-directional pedal provides power to the first transmission mechanism 303 through the first crank 302, controls the braking mechanism of the at least one central control wheel assembly 304 connected with the first transmission mechanism 303 to brake or brake off, and provides power to the second transmission mechanism 307 through the torsion shaft 305 connected with the first crank 302 and the second crank 306, and controls the braking mechanism of the at least one central control wheel assembly 304 connected with the second transmission mechanism 307 to brake or brake off.

In one embodiment, if a certain number of central control wheels are arranged on the left and right sides of the central braking system, the transmission mechanisms, namely the first transmission mechanism and the second transmission mechanism, can be respectively arranged on at least one central control wheel on the left side and at least one central control wheel on the right side, so that braking can be rapidly and reliably controlled or released when a bidirectional pedal is stepped.

In one embodiment, the bi-directional pedal 301 is fixedly coupled to the first crank 302 by a screw.

Based on the transmission mechanism in fig. 3, the embodiment of the application provides a schematic structural diagram of a first transmission mechanism and a schematic structural diagram of a second transmission mechanism, as shown in fig. 4 and 5, the first transmission mechanism 400 includes a first transmission rod 401 and at least one first control member 402, and the second transmission mechanism 500 includes a second transmission rod 501 and at least one second control member 502;

the first transmission rod 401 is respectively connected with a first end shaft of at least one first control member 402, a second end of the first control member 402 is connected with a braking mechanism of the central control wheel assembly, and the first transmission rod 401 is connected with a first end shaft of a first crank 403;

the second transmission rod 501 is respectively connected with a first end shaft of at least one second control member 502, a second end of the second control member 502 is connected with a braking mechanism of the central control wheel assembly, and the second transmission rod 501 is connected with a first end shaft of a second crank 503;

When the bi-directional pedal is stepped on, the bi-directional pedal provides power to the first transmission rod 401 through the first crank 403, the first transmission rod 401 drives the first end of the first control member 402 to swing, the second end of the first control member 402 controls the braking mechanism of the corresponding central control wheel assembly to brake or brake release, the torque force connecting the first crank 403 and the second crank 503 is used for providing power to the second transmission rod 501, the second transmission rod 501 drives the first end of the second control member 502 to swing, and the second end of the second control member 502 controls the braking mechanism of the corresponding central control wheel assembly to brake or brake release.

In one embodiment, the first transmission rod 401 and the second transmission rod 501 drive the corresponding first control member 402 and the corresponding second control member 502 to swing respectively, the swing process drives the braking mechanism of the corresponding central control wheel assembly to brake or release the central control wheel, and the first transmission rod 401 and the second transmission rod 501 with the structure are arranged below the connection point of the first control member 402, the second control member 502 and the braking mechanism of the central control wheel assembly, so that gravity swing is not needed to be overcome, the force required by stepping on the bidirectional pedal during braking or releasing the brake can be saved, and the operation difficulty is reduced.

In one embodiment, the shaft connection manner of the first transmission rod 401 and the first control member 402, and the shaft connection manner of the second transmission rod 501 and the second control member 502 may be a rivet, a screw, a pin, or the like, and the shaft connection manner is not limited herein, and may be set as required.

Based on the schematic structural diagram of the first transmission mechanism 400 shown in fig. 4 and the schematic structural diagram of the second transmission mechanism 500 shown in fig. 5, the embodiment of the present application provides a shaft connection manner, wherein the first transmission rod 401 is provided with a plurality of first rod holes, and the second transmission rod 501 is provided with a plurality of second rod holes;

the first end of the first control member 402 diverges from the two first legs 404, the ends of the first legs 404 are provided with first leg holes, and a supporting shaft 405 passes through the first leg holes and corresponding first rod holes on the first transmission rod 401 to connect the first end of the first control member 402 with the first transmission rod 401 in a shaft manner;

The first end of the first crank 403 diverges from the two first tangs 406, the first tang 406 has a first tang hole at its end, and the support shaft 407 passes through the first tang hole and the corresponding first lever hole on the first lever 401 to connect the first end of the first crank 403 with the first lever 401 shaft;

The first end of the second control member 502 diverges into two second support legs 504, the tail ends of the second support legs 504 are provided with second support leg holes, and a support shaft 505 penetrates through the second support leg holes and corresponding second rod holes on the second transmission rod 501 to connect the first end of the second control member 502 with the second transmission rod 501 in a shaft manner;

the first end of the second crank 503 diverges from the two second tangs 506, the second tangs 506 have second tang holes at their ends, and the support shaft 507 passes through the second tang holes and corresponding second rod holes on the second transmission rod 501 to shaft-connect the first end of the second crank 503 with the second transmission rod 501.

In one embodiment, the two first legs 404 of the first control member 402 and the two first tangs 406 of the first crank 403 are connected by being "ridden" on the first transmission rod 401, the two second legs 504 of the second control member 502 and the two second tangs 506 of the second crank 503 are connected by being "ridden" on the second transmission rod 501, so that the shaft connection among the control member, the crank and the transmission rod can be limited, the reliability of the connection among the parts is ensured, useless relative movement among the parts is prevented, the power for stepping on the bi-directional pedal is converted into friction force to be consumed, the force required by braking and unbraking is conveniently saved, and the power of the transmission rod is received and transmitted through the two side legs or tangs, so that the stress among the parts is uniform, and the stability of the mechanism is ensured.

Based on the schematic structural diagram of the first transmission mechanism 400 in fig. 4 and the schematic structural diagram of the second transmission mechanism 500 in fig. 5, the embodiment of the present application provides a connection manner between the transmission mechanism and the brake mechanism:

the second end of the first control end 402 is provided with a first positioning hole, and a first brake shaft 408 of a brake mechanism of the corresponding central control wheel assembly is clamped in the first positioning hole so as to fixedly connect the second end of the first control element 402 with the first brake shaft 408;

The second end of the second control end 502 is provided with a second positioning hole, and a second brake shaft 508 of a brake mechanism of the corresponding central control wheel assembly is clamped in the second positioning hole so as to fixedly connect the second end of the second control piece 502 with the second brake shaft 508;

When the bi-directional pedal is stepped on, the bi-directional pedal drives the first end of the first control member 402 to swing through the first transmission rod 401 connected with the first crank 403, so that the first brake shaft 408 at the second end of the first control member 402 obtains torsion to control the brake mechanism of the corresponding central control wheel assembly to brake or release brake, and the torsion force connected with the first crank 403 and the second crank 503 is used for providing power for the second transmission rod 501, and the second transmission rod 501 connected with the second crank 503 drives the first end of the second control member 502 to swing, so that the second brake shaft 508 at the second end of the second control member 502 obtains torsion force to control the brake mechanism of the corresponding central control wheel assembly to brake or release brake.

Based on the schematic structural diagram of the first transmission mechanism 400 shown in fig. 4 and the schematic structural diagram of the second transmission mechanism 500 shown in fig. 5, the embodiment of the present application provides a transmission mechanism fixed on a base structure, wherein a first brake shaft 408 is connected with a first support seat 409, a second brake shaft 508 is connected with a second support seat 509, and the first support seat 409 and the second support seat 509 are respectively fixed on the base;

The first end of the torsion shaft is connected with the first bearing seat 410 in a shaft way, the second end of the torsion shaft is connected with the second bearing seat 510 in a shaft way, and the first bearing seat 410 and the second bearing seat 510 are respectively fixed on the base.

In one embodiment, the first support seat 409 and the second support seat 509 may be fixed on the base by welding or screw fixing, and the first bearing seat 410 and the second bearing seat 510 may also be fixed on the base by welding or screw fixing, and the fixing manner of the support seat and the bearing seat to the base is not limited, and may be set as required.

In one embodiment, as shown in fig. 3, 4 and 5, a first bearing seat 410 may be respectively disposed on two sides of the torsion shaft 505, which is axially connected to the first crank 403, and a second bearing seat 510 may be respectively disposed on two sides of the torsion shaft, which is axially connected to the second crank 503. The first brake shaft 408 is fixedly connected with the first brake shaft 408 of the brake mechanism of the corresponding center wheel assembly at a position where the first brake shaft 408 is axially connected with the first support seat 409, the first brake shaft 408 extending from the first positioning hole of the first control member 402 can be fixedly connected with the base through the first support seat 409 at the other side, so that the second end of the first control member 402 is fixedly connected with the first brake shaft 408, and the second brake shaft 508 is fixedly connected with the second support seat 509 at a position where the second brake shaft 508 is axially connected with the second brake shaft 508, and the second brake shaft 508 extending from the second positioning hole of the second control member 502 can be fixedly connected with the base through the second support seat 509 at the other side. Thus, the central braking system and the base are reliably and fixedly connected.

In one embodiment, the central brake system comprises four central wheel assemblies, based on the structure shown in fig. 3-5, when an external force is applied to one side of the tilting of the bi-directional pedal 301, the bi-directional pedal 301 drives the first crank 403 to rotate around the first bearing seats 410 on the left and right sides, and then the first crank 403 drives the first transmission rod 401 to move horizontally through the support shafts 407 fixed on the first crank 403, and because the first transmission rod 401 is rotatably connected with the two support shafts 405 respectively, and the two support shafts 405 are fixedly connected with the corresponding first control rods 402 respectively, when the first transmission rod 401 moves horizontally, the first control rod 402 is driven to swing horizontally, and because the first control rod 402 is rotatably connected with the first support seat 409, and the first support seat 409 is fixedly connected with the base, the first transmission rod 401 can only drive the two first control rods 402 to move circumferentially around the first support seat 409 through the support shafts 405 respectively, so that when the external force is applied to one side of the bi-directional pedal 301, the first transmission rod 301 can move circumferentially around the first support seat 409.

The torsion shaft 305 has one end fixedly connected to the first crank 403 and the other end fixedly connected to the second crank 503, and is capable of transmitting a part of torsion of the first crank 403 to the second crank 503, so as to force the second crank 503 to rotate around the second bearing seats 510 on both sides, and the second crank 503 is capable of controlling the second control rod 502 to perform circular motion around the support seat 509.

When an external force is applied to the second crank 502, the second crank 502 is forced to rotate around the second bearing seats 510 on the two sides, then the second crank 502 drives the second transmission rod 501 to move horizontally through the supporting shafts 507 fixed on the second crank 502, and the second transmission rod 501 is rotatably connected with the supporting shafts 505 and the supporting shafts 505 can be fixedly connected with the second control rod 502, so that the second control rod 502 can be driven to swing horizontally when the second transmission rod 501 moves horizontally, and the second control rod 502 is rotatably connected with the supporting seats 509 and the supporting seats 509 are fixedly connected with the bases, so that the second transmission rod 501 can only drive the second control rod 502 to move circumferentially around the supporting seats 505 through the supporting shafts 507, and finally the second control rod 502 can move circumferentially around the supporting seats 505 under the action of the second crank 502 when the external force is applied to the second crank 502.

The first transmission mechanism 400 and the second transmission mechanism 500 can both form a parallelogram mechanism, and the property of the parallelogram can show that the two first control rods 402 and the two second control rods 502 can form a parallelogram, and the rotation angles of the first crank 403 and the second crank 502 are always equal, so that the braking angles generated in the 4 central control wheel assemblies are always consistent in the working process, and the self-locking reliability is ensured.

Meanwhile, in order to save more labor in operation, a labor saving mechanism is designed in the first transmission mechanism 400 and the second transmission mechanism 500 by utilizing the lever principle, for example, a space between the first crank 403 and the first transmission rod 401, a space between the two first control rods 402 and the two second control rods 502 and the braking structure inside the central control wheel 402 respectively, and the labor saving mechanism is used by a user.

Based on the above embodiment, in one embodiment, as shown in fig. 6, a schematic structural diagram of a central control wheel assembly 600 according to an embodiment of the present application is provided, in which the central control wheel assembly 600 includes a central control wheel fixing sleeve 601 and a central control wheel 602, the central control wheel 602 is fixedly disposed at a first end of the central control wheel fixing sleeve 601, a second end of the central control wheel fixing sleeve 601 is fixedly disposed on a base, and a brake structure is disposed in the central control wheel 602 and is connected with the first brake shaft 408 or the second brake shaft 409. Thus, one side of the first control member 402 is fixed to the base through the first brake shaft 408 and the first support seat 409, the other side is fixed to the base through the center wheel fixing sleeve 601 in the center wheel assembly 600, and one side of the second control member 502 is fixed to the base through the second brake shaft 508 and the second support seat 509, and the other side is fixed to the base through the center wheel fixing sleeve 601 in the center wheel assembly 600. In this way, the two sides of the stress positions of each of the first control member 402 and the first crank 403 in the first transmission mechanism 400 and each of the second control member 502 and the second crank 503 in the second transmission mechanism 500 are respectively provided with a supporting point supported on the base, so that the central braking system has good stability, and accordingly, the force required for operating the central braking system is smaller, thereby achieving the purpose of saving labor.

In one embodiment, the inner part of the central control wheel assembly comprises a braking structure, when the inner structure is forced to rotate by a certain angle through the outer structure, the central control wheel 602 performs self-locking, and when the central control wheel 602 reversely rotates by the same angle, the central control wheel 602 unlocks itself, so that the self-locking and unlocking of the central control wheel 602 can be realized by controlling the forward and reverse rotation of the inner structure of the central control wheel 602 through the outer structure.

Based on the above structural diagrams, the embodiment of the present application provides a schematic structure of a bi-directional pedal, as shown in fig. 7, where an anti-slip structure 701 is disposed on a first surface of the bi-directional pedal 700, and the first surface is opposite to a second surface of the bi-directional pedal 700 connected to a first crank. So, the antiskid structure 701 can prevent skidding when stepping on, save effort, improve man-machine interaction.

In one embodiment, a magnetic structure 800 may also be provided between the base and the bi-directional pedal 700 to further save effort when stepping on the bi-directional pedal 700 to brake or brake.

Based on the above structural schematic diagrams, an embodiment of the present application provides a structural schematic diagram of a magnetic attraction structure 800, as shown in fig. 8, a magnetic attraction buffer assembly is provided on a base, the magnetic attraction buffer assembly includes a magnet fixing plate 801, a first magnet 802, a buffer pad 803 and a magnetic attraction parent 804, a second magnet 805 is provided on a second surface of the bi-directional pedal, and the second magnet 805 is disposed opposite to the magnetic attraction buffer assembly;

the magnet fixing plate 801 is fixedly arranged on the base, and the buffer pad 803 and the first magnet 802 are alternately paved on the same plane and are fixed on the magnet fixing plate 801 through the magnetic attraction piece 804;

When the bi-directional pedal is depressed, the second magnet 805 is in attractive contact with the first magnet 802 on the attractive buffering assembly.

In one embodiment, the first magnet 802 and the cushion 803 can be fixed on the base through the magnetic attraction female member 804 and the magnet fixing plate 801, and then when the bi-directional pedal is stepped on, magnetic attraction is generated with the second magnet 805, so that the force is saved.

In one embodiment, the magnetic attraction female member 804 and the magnet fixing plate 801 may be fixedly connected by a screw, and the magnet fixing plate 801 may be fixedly connected with the base by a screw fixing connection.

In one embodiment, a magnetic structure 800 may be disposed on each of the first and second sub-pedals of the bi-directional pedal, as shown in fig. 9, so that when the first or second sub-pedal is operated by stepping, the force can be saved by the corresponding magnetic structure 800.

In one embodiment, when the first sub pedal or the second sub pedal in the bi-directional pedal rotates to the lowest point, the bi-directional pedal is contacted with the magnetic buffer assembly, in the contacting process, the bi-directional pedal is firstly contacted with the buffer pad 803 on the magnetic buffer assembly (the surface of the buffer pad 803 can be flush with the surface of the first magnet 802 or higher than the surface of the first magnet 802), the buffer pad 803 can effectively reduce noise in the contacting process, secondly, when the buffer pad moves to the lowest point, the second magnet 805 fixed on the bi-directional pedal is contacted with the first magnet 802, under the action of mutual adsorption force, the bi-directional pedal can be contacted with the magnetic buffer assembly more reliably, so that in the unlocking and self-locking processes, only one side of the bi-directional pedal needs to be stepped on, and the raised side of the buffer assembly is stepped on to the corresponding side of the magnetic buffer assembly, in the operating process, which side of the unlocking pedal does not need to be separately distinguished, and in the stepping on the self-locking pedal is not needed, and in the process, the problem that whether the stepping on the pedal is in place is not needed, and the back of the pedal is stepped on is not needed, and the back pedal is used, so that the man-machine interaction is better.

Based on the structural or partial structural schematic diagram of the central braking system and related embodiments thereof, embodiments of the present application provide a medical device, where any of the central braking systems may be included in the medical device.

It should be noted that the shaft connection of the present application is a flexible rotatable connection structure.

Those skilled in the art will appreciate that the above-described central braking system is not limiting of the system and may include more or fewer components, parts, assemblies than shown, or combinations of certain components, parts, or assemblies. It will be appreciated that, based on the same conception, it is within the scope of the present application to replicate and deform the structure of the central braking system, and to replace the structure of the illustrated portion with a structure commonly used in the art.

Claims

1. The central braking system is characterized by comprising a plurality of central control wheel assemblies, a base, a main transmission mechanism and a bidirectional pedal, wherein the bidirectional pedal comprises a first sub pedal and a second sub pedal, a set angle is arranged between the first sub pedal and the second sub pedal, and the set angle is smaller than 180 degrees;

2. The system of claim 1, wherein the main drive comprises a first drive, a second drive, a first crank, a second crank, and a torsion shaft;

3. The system of claim 2, wherein the first transmission mechanism comprises a first transmission rod and at least one first control member, and wherein the second transmission mechanism comprises a second transmission rod and at least one second control member;

4. The system of claim 3, wherein the first drive rod has a plurality of first rod holes thereon and the second drive rod has a plurality of second rod holes thereon;

5. The system of claim 3, wherein the system comprises,

The second end of the first control member is provided with a first positioning hole, and a first brake shaft of a brake mechanism of the corresponding central control wheel assembly is clamped in the first positioning hole so as to fixedly connect the second end of the first control member with the first brake shaft;

The second end of the second control member is provided with a second positioning hole, and a second braking shaft of a braking mechanism of the corresponding central control wheel assembly is clamped in the second positioning hole so as to fixedly connect the second end of the second control member with the second braking shaft;

6. The system of claim 5, wherein the first brake shaft is coupled to a first support block shaft, the second brake shaft is coupled to a second support block shaft, and the first support block and the second support block are each secured to the base;

7. The system of any of claims 2-6, wherein a first surface of the bi-directional pedal is provided with a non-slip feature, the first surface being an opposite surface of the bi-directional pedal from a second surface to which the first crank is coupled.

8. The system of any one of claims 1-6, wherein a magnetic buffer assembly is provided on the base, the magnetic buffer assembly comprises a magnet fixing plate, a first magnet, a buffer pad and a magnetic parent element, a second magnet is provided on a second surface of the bi-directional pedal, and the second magnet is arranged opposite to the magnetic buffer assembly;

9. The system of any of claims 1-6, wherein the wheel assembly comprises a wheel mounting sleeve and a wheel, the wheel is fixedly disposed at a first end of the wheel mounting sleeve, a second end of the wheel mounting sleeve is fixedly disposed on the base, and a brake structure is disposed in the wheel and is connected to the first brake shaft or the second brake shaft.

10. A medical device comprising a central braking system according to any one of claims 1 to 9.