CN223631315U - Braking device - Google Patents

Abstract

This application relates to the field of braking technology and discloses a braking device. The braking device is installed at the bottom of a storage and transportation equipment, which is equipped with at least two casters, each of which includes a wheel frame and a tire. The braking device includes: a retaining ring, a drive shaft, a foot pedal, two guide grooves, two brake levers, and two brake plates. The retaining ring is fixed to the bottom of the storage and transportation equipment. The drive shaft is rotatably connected to the retaining ring, and two radial flanges are respectively provided at both ends of the drive shaft. The foot pedal is fixedly connected to the middle of the drive shaft. The installation distance between the two guide grooves is equal to the wheel distance of the two casters. The two brake levers are slidably connected to the two guide grooves respectively. The two brake plates are rotatably connected to the two wheel frames respectively, and one end of the brake plate is located on the movement path of the brake lever. When the foot pedal is subjected to force, the drive shaft and the radial flanges rotate in sequence, and the radial flanges press against one end of the brake plate through the brake levers until the brake plate rotates to contact the tire.

Description

Braking device

Technical Field

The application relates to the technical field of brakes, in particular to a brake device.

Background

At present, the brake of the existing truckle is independently arranged on each truckle, one wheel needs to be stepped on, the other wheel needs to be stepped on again, the brake can be applied, the operation is unsafe when the full load weight is large, and the safety risks of workers and pedestrians can be caused when the vehicle goes up and down. There is therefore a need for a device capable of braking multiple casters simultaneously.

Disclosure of Invention

The application aims to provide a braking device capable of simultaneously braking a plurality of casters.

The application provides a brake device which is arranged at the bottom of storage and transportation equipment, wherein the storage and transportation equipment is provided with at least two casters, each caster comprises a wheel frame and a tire, the brake device comprises a fixed ring, the fixed ring is fixed at the bottom of the storage and transportation equipment, a transmission shaft is rotatably connected with the fixed ring, two radial flanges are respectively arranged at two ends of the transmission shaft, a pedal plate is fixedly connected at the middle part of the transmission shaft, two guide grooves are respectively fixedly connected with the two casters, the installation distance of the two guide grooves is equal to the wheel distance of the two casters, the two guide grooves are arranged in the vertical direction, two brake rods are respectively and slidably connected with the two guide grooves, two brake plates are respectively and rotatably connected with the two wheel frames, one end of each brake plate is positioned on the movement path of each brake rod, the transmission shaft is driven to rotate after the pedal plate is stressed, the radial flanges rotate, the radial flanges press the brake rods to move downwards, and the brake rods press one end of each brake plate until the brake plates rotate until the brake plates are in contact with the tires.

In one embodiment, the brake device further comprises an elastic member, and the elastic member is arranged between the wheel frame and the brake plate and is used for providing a force for resetting the brake plate and the brake lever.

In another embodiment, the braking device further comprises a torsion spring sleeved on the transmission shaft, the torsion spring comprises two torsion arms, one torsion arm is abutted against the bottom of the storage and transportation device, the other torsion arm is abutted against the pedal, and the torsion spring is used for providing restoring force for the pedal.

In yet another embodiment, the elastic member is an elastic rod, one end of the elastic rod is fixed to the wheel frame, and the other end of the elastic rod is supported below the end of the brake plate.

In yet another embodiment, the stressed end of the foot pedal is provided with an anti-slip rubber sleeve.

In one embodiment, the middle of the transmission shaft is recessed downward to increase the distance between the pedals and the bottom of the storage and transportation device.

In another embodiment, the length of the foot rest is greater than the distance of the drive shaft from the side of the storage and transportation device.

In one embodiment, the storage and transportation equipment is provided with a pushing handle, and the brake device is arranged on one side close to the pushing handle.

Compared with the prior art, the braking device provided by the embodiment of the application has the beneficial effects that:

Through the scheme, since the installation distance between the two brake rods is equal to the installation distance between the two casters, after the pedal is stepped on, the rotating transmission shaft can simultaneously drive the two brake rods on two sides to respectively downwards extend out of the extrusion braking plate until the braking plate is abutted against the two casters, so that the casters on two sides are simultaneously braked, the casters on two sides can be effectively braked when being fully loaded, and the casters are difficult to skid after being braked by the braking of the two brake rods.

Drawings

Fig. 1 is a schematic structural view of a brake device according to an exemplary embodiment of the present application.

Fig. 2 is a schematic view illustrating a partial structure of a pedal of a brake device according to an embodiment of the present application.

Fig. 3 is a schematic view illustrating a structure of a pedal of a brake device according to an embodiment of the present application.

Fig. 4 is a schematic structural view of a transmission shaft of a brake apparatus according to an exemplary embodiment of the present application.

Fig. 5 is a schematic view illustrating a structure of a caster of a brake apparatus according to an embodiment of the present application.

Reference numerals:

10. Brake equipment, 101, fixed ring, 102, transmission shaft, 1021, radial flange, 103, pedal, 104, brake lever, 105, brake plate, 20, storage and transportation equipment, 201, castor, 2011, wheel carrier, 2012, tire.

Detailed Description

The following describes in further detail the embodiments of the present application with reference to the drawings and examples. The following examples are illustrative of the application and are not intended to limit the scope of the application.

As shown in fig. 1, 2 and 4, a brake device 10 according to a preferred embodiment of the present application is installed at the bottom of a storage and transportation apparatus 20, the storage and transportation apparatus 20 is provided with at least two casters 201, each of the casters 201 includes a wheel frame 2011 and a tire 2012, and the brake device 10 includes a fixing ring 101, a transmission shaft 102, a pedal 103, two guide grooves, two brake levers 104 and two brake plates 105.

The fixed ring 101 is fixed at the bottom of the storage and transportation equipment 20, the transmission shaft 102 is rotatably connected with the fixed ring 101, two radial flanges 1021 are respectively arranged at two ends of the transmission shaft 102, and the pedal 103 is fixedly connected at the middle part of the transmission shaft 102.

The two guide grooves are fixedly connected with the two casters 201 respectively, the installation space of the two guide grooves is equal to the wheel distance of the two casters 201, and the two guide grooves are arranged along the vertical direction.

The two brake levers 104 are slidably connected to the two guide grooves, respectively. The two brake plates 105 are rotatably connected to the two wheel frames 2011, respectively, and one end of the brake plate 105 is located on the movement path of the brake lever. Wherein, the pedal 103 is forced to drive the transmission shaft 102 to rotate, and simultaneously the radial flange 1021 rotates, the radial flange 1021 presses the brake lever 104 to move downwards, and the brake lever 104 presses one end of the brake plate 105 until the brake plate 105 rotates to abut against the tire 2012.

It will be appreciated that the guide slots for allowing the brake lever 104 to slide up and down are omitted from the figures to illustrate the linkage of the internal devices.

Through this scheme, after the pedal 103 is stepped on, can drive two brake levers 104 simultaneously and press two brake plates respectively, the simultaneous effect of two brake plates makes two truckles 201 blocked simultaneously. In this way, the casters 201 on both sides can be braked simultaneously, and effective braking can be realized even under the condition of full load. Moreover, the braking efficacy of the two brake levers 104 makes it difficult for the caster 201 to slip after braking.

Meanwhile, when the brake system is activated, since the two casters 201 can stop rotating at the same time, since the two brake levers 104 act on the two casters 201 simultaneously so that they receive the same braking force at the same time. In this case, the caster 201 is hardly shifted left and right during braking. Since the casters 201 on the left and right sides are simultaneously firmly braked, unbalance phenomenon caused by braking at one side and braking at the other side is not generated.

In the process of ascending and descending the slope, the center of gravity of the vehicle can be changed, the requirement on a braking system is higher, and the braking scheme capable of ensuring that the two casters 201 stop rotating simultaneously can effectively prevent the vehicle from sideslip or shifting due to left-right unbalance during braking, so that the safety during ascending and descending the slope is greatly improved.

In the above scheme, the guide groove provides a clear path for the up-and-down movement of the brake lever 104, so that the brake lever 104 can move along a given direction in the braking process, and the deviation or the shaking is avoided, thereby ensuring the stability and the reliability of the brake.

In one embodiment, the brake lever 104 may be formed from a high strength material, such as alloy steel, to improve its durability and resistance to deformation. In this way, the brake lever 104 maintains good performance during long-term use even with frequent braking, ensuring that the caster 201 is always securely stuck.

A slip-resistant pad or coating is added to the area of the brake lever 104 that contacts the caster 201. For example, special rubber shims may be used to increase friction, improve braking, and reduce wear between the brake lever 104 and the caster 201.

In an embodiment of the present application, the brake device 10 further includes an elastic member 106, and the elastic member 106 is installed between the wheel frame 2011 and the brake plate 105, for providing a restoring force of the brake plate 105 and the brake lever 104.

Meanwhile, the elastic member 106 provides a restoring force to the brake lever 104 after the brake is released. When the brake pedal is released, the elastic member 106 can rapidly pull the brake lever 104 back to the initial position, so that the caster 201 is restored to the free-rotation state, and the brake apparatus 10 is simple and easy to use.

Specifically, the elastic member 106 may be an elastic rod, as shown in fig. 4, one end of which is fixed to the wheel carrier 2011, and the other end of which is supported below the end of the brake plate 105.

In addition to the elastic rod, the elastic member 106 may be a torsion spring, which may be disposed at a rotational connection position between the brake plate 105 and the wheel frame 2011, where one torsion arm of the torsion spring abuts against the wheel frame 2011, and the other torsion arm abuts against the brake plate 105, so as to provide a restoring force of the brake plate 105, and when the brake plate 105 is restored, the brake plate 104 can be driven to restore together.

In another embodiment, the braking device 10 may further include a torsion spring sleeved on the transmission shaft 102, where the torsion spring includes two torsion arms, one torsion arm abuts against the bottom of the storage and transportation device 20, and the other torsion arm abuts against the pedal 103, and the torsion spring is used to provide a force for resetting the pedal 103.

The presence of the torsion spring makes the return of the foot pedal 103 more rapid and reliable. It can avoid the condition that the pedal 103 can not return to the initial position after the brake is released, thereby ensuring the normal operation of the brake system. Meanwhile, the torsion spring can also reduce shaking and loosening of the pedal plate 103 in the use process, and stability of the braking system is improved.

It will be appreciated that the parameters of the torsion spring, such as spring rate, torsion arm length, etc., need to be selected based on the particular requirements of the braking system, and the application is not particularly limited. A larger spring rate may provide a stronger return force, but may also result in excessive operating force of foot pedal 103. The length of the torsion arm is selected to take into account space constraints on the foot rest 103 and the bottom of the storage and transportation device 20, as well as the stability of the torsion spring after installation.

As shown in fig. 3, the brake lever 104 may be designed in other shapes besides a rod shape, and may be collectively referred to as a brake lever since it functions identically. In addition to the structure mentioned in the present application, other transmission mechanisms can be added by those skilled in the art to achieve further design purposes, and the further development scheme still accords with the scheme of the present application, and the present application shall fall within the protection scope of the present application.

In order to improve the braking effect, grooves can be formed in the casters to be matched with the braking plate for braking.

By way of example, the recess may be provided in the hub of the castor 201. The grooves are formed in the hubs of the casters 201, so that the brake lever 104 can be matched with the grooves more accurately during braking. When the brake lever 104 contacts the groove on the hub, the stability and regularity of the rotation of the hub, which is the core of the caster 201, allows the brake lever 104 to snap into the groove quickly and accurately, resulting in a more positive braking response.

This well-defined braking response means that the braking system can act faster during braking operations, reducing the delay time of braking and improving the efficiency and reliability of braking.

If grooves are formed in the rubber portion where the wheels contact the ground, when the caster 201 rolls on uneven ground, irregular contact is easily generated with the ground at the grooves, resulting in an increased feeling of jolt. The grooves are provided on the hub, which is usually located inside the caster 201 with relatively little contact with the ground, so that jolting introduced by grooving can be avoided.

In yet another embodiment of the present application, the force-bearing end of the foot pedal 103 is provided with an anti-slip rubber sleeve.

The anti-slip rubber sleeve is arranged at the stress end of the pedal plate 103, so that the friction between the foot of a user and the pedal plate 103 can be remarkably increased. When a user steps on the pedal 103 to perform braking operation, the anti-slip rubber sleeve can effectively prevent feet from slipping, and accuracy and stability of braking operation are ensured.

Particularly, in some emergency situations, the pedal 103 needs to be quickly and forcefully pressed down to brake, and the user can apply force more confidently due to the anti-slip rubber sleeve, so that the response speed of the brake is improved.

The anti-slip rubber sleeve is usually made of soft rubber materials and has certain elasticity and buffering performance. When the user steps on the pedal 103, the anti-slip rubber sleeve can relieve the pressure of the foot and improve the operation comfort.

In addition, the anti-skid rubber sleeve can reduce the vibration transmission of the foot pedal 103 to the foot, and reduce the fatigue caused by long-time use of the foot pedal 103.

The anti-slip rubber sleeve can play a role in protecting the pedal 103. Foot pedal 103 is susceptible to wear, scratches, and impact injuries during daily use. The anti-slip rubber sleeve can provide an additional layer of protection for the foot pedal 103, and the service life of the foot pedal 103 is prolonged.

Meanwhile, the anti-skid rubber sleeve can also prevent the surface of the pedal 103 from being polluted and corroded, and keep the pedal 103 clean and attractive.

In one embodiment, as shown in fig. 4, the middle of the transmission shaft 102 may be recessed downward to increase the distance between the foot rest 103 and the bottom of the storage and transportation device 20.

The middle recess does not affect the installation of the brake lever 104 parts at the two ends, and can provide a larger foot space in the longitudinal direction, thereby reducing the probability of stepping on the sky. While making it more comfortable to operate the foot rest 103, reducing the possibility of the foot colliding with the bottom of the storage and transportation device 20.

In another embodiment, as shown in fig. 5, the length L of the foot rest 103 is greater than the distance H of the drive shaft 102 from the side of the storage and transportation device 20.

Because the length of the foot pedal 103 is longer, the user can more easily contact the foot pedal 103 at different positions and angles, improving the convenience of operation.

For example, some users may be accustomed to stepping on the foot pedal 103 with the tip of their foot, while some users may prefer to step on the entire sole of their foot. Longer foot pedals 103 may provide sufficient space for these various modes of operation.

In one embodiment, the storage and transportation device 20 is provided with a push handle, and the brake device 10 is installed on one side close to the push handle.

The brake device 10 is installed near the push handle, so that an operator can conveniently operate the brake while pushing the storage and transportation equipment 20. The push handle is usually the place where the operator directly contacts the storage and transportation device 20, and the brake device 10 is installed nearby, so that the braking operation is more handy.

When the operator pushes the storage and transportation device 20, the hand naturally holds the push handle. If braking is needed, only the brake device 10 close to one side of the push handle is easily stepped on by feet, and the body is not required to be moved greatly or the hand position is not required to be changed, so that the operation is very convenient.

The convenience is particularly important under the condition of needing frequent braking, so that the working efficiency can be improved, and the fatigue feeling of operation can be reduced.

Because the brake assembly 10 is positioned adjacent to the push handle, the operator can detect the need for braking at the first time and react quickly. For example, in case of emergency or in front of an obstacle, the brake can be quickly pushed down, and the safety of the storage and transportation device 20 is ensured.

To better facilitate ease of operation and quick response, the brake apparatus 10 may be designed to cooperate with a push handle. For example, a brake operation prompt sign or button may be provided on the push handle to allow the operator to more intuitively understand the position and operation method of the brake apparatus 10.

In summary, the embodiment of the application provides a brake device 10, two brake rods 104 are driven by a pedal 103 to realize simultaneous braking of casters 201 at two sides, full load is effective and no slip is caused, left and right offset of braking can be avoided, and ascending and descending slopes are safer.

Still can be equipped with parts such as adaptor, guide way, elastic component, torsional spring, establish the recess at truckle 201 wheel hub, the running-board 103 atress end is equipped with the antiskid gum cover, and the sunken increase pedal space in transmission shaft 102 middle part, running-board 103 length reasonable in design installs and is being close to pushing away one side, simple operation, response are fast and space utilization is reasonable. The disclosure of the various embodiments constitutes a brake apparatus 10 that is convenient to use.

The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present application, and these modifications and substitutions should also be considered as being within the scope of the present application.

Claims (8)

1. A braking device (10), characterized in that the braking device (10) is installed at the bottom of a storage and transportation device (20), the storage and transportation device (20) being equipped with at least two casters (201), each of the two casters (201) comprising a wheel frame (2011) and a tire (2012); the braking device (10) comprising: A fixing ring (101) is fixed to the bottom of the storage and transportation equipment (20); A drive shaft (102) is rotatably connected to the fixed ring (101), and two radial flanges (1021) are respectively provided at the two ends of the drive shaft (102). Foot pedal (103), the foot pedal (103) is fixedly connected to the middle of the drive shaft (102); Two guide grooves are fixedly connected to two casters (201) respectively. The installation distance between the two guide grooves is equal to the wheel distance between the two casters (201). The two guide grooves are placed in the vertical direction. Two brake levers (104) are slidably connected to the two guide grooves respectively; Two brake plates (105) are rotatably connected to two wheel frames (2011) respectively, and one end of each brake plate (105) is located on the movement path of the brake lever (104). When the foot pedal (103) is subjected to force, it drives the transmission shaft (102) to rotate. At the same time, the radial flange (1021) rotates and presses the brake lever (104) downward, so that the brake lever (104) presses one end of the brake plate (105) until the brake plate (105) rotates to contact the tire (2012). 2. The braking device (10) according to claim 1, characterized in that the braking device (10) further includes an elastic element (106). The elastic element (106) is installed between the wheel frame (2011) and the brake plate (105) to provide a force for the brake plate (105) and the brake lever (104) to reset. 3. The braking device (10) according to claim 1, characterized in that the braking device (10) further includes a torsion spring, the torsion spring being mounted on the drive shaft (102), the torsion spring including two torsion arms, one of the torsion arms abutting against the bottom of the storage and transportation device (20), and the other torsion arm abutting against the foot pedal (103), the torsion spring being used to provide a force for the foot pedal (103) to return. 4. The braking device (10) according to claim 2, characterized in that the elastic element (106) is an elastic rod, one end of the elastic rod is fixed to the wheel frame (2011), and the other end of the elastic rod is supported below the end of the brake plate (105). 5. The braking device (10) according to claim 1, characterized in that the force-bearing end of the foot pedal (103) is provided with an anti-slip rubber sleeve. 6. The braking device (10) according to claim 1, characterized in that the middle part of the transmission shaft (102) is recessed downward to increase the distance between the foot pedal (103) and the bottom of the storage and transportation device (20). 7. The braking device (10) according to claim 1, characterized in that the length of the foot pedal (103) is greater than the distance from the drive shaft (102) to the side of the storage and transportation device (20). 8. The braking device (10) according to claim 1, characterized in that the storage and transportation equipment (20) is provided with a push handle, and the braking device (10) is installed on the side close to the push handle.