CN116449909B - Reset mechanism and resettable operating lever - Google Patents
Reset mechanism and resettable operating leverInfo
- Publication number
- CN116449909B CN116449909B CN202310525651.1A CN202310525651A CN116449909B CN 116449909 B CN116449909 B CN 116449909B CN 202310525651 A CN202310525651 A CN 202310525651A CN 116449909 B CN116449909 B CN 116449909B
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- CN
- China
- Prior art keywords
- hole
- spring
- guide rod
- reset mechanism
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transmission Devices (AREA)
- Mechanical Control Devices (AREA)
Abstract
The invention discloses a reset mechanism and a resettable operating lever, which comprises a mounting plate, guide rods and an elastic component, wherein an upper boss and a lower boss are fixed at the top end and the bottom end of the mounting plate, an upper through hole is formed in the upper boss, a lower through hole is formed in the lower boss, a mounting hole is formed in the middle of the mounting plate, a swinging rod is connected in a rotating mode in the mounting hole, one side of the swinging rod is fixedly connected with an end plate and is rotationally connected with idler wheels, the idler wheels are symmetrically arranged on two sides of the guide rods, the guide rods penetrate through the through holes and are rotationally connected with the lower through holes, the elastic component is connected with the guide rods in a sliding mode, and the elastic component is arranged between the idler wheels and the lower bosses. The reset mechanism can realize the self-reset function through the elastic potential energy of the spring, can be arranged on small-sized manual equipment such as the control lever and the like, can control the initial restoring force of the structure through adjusting the compression amount of the spring, saves the time of a restoring process, is internally provided with a limiting device, can be detachably connected, and is convenient to maintain and replace.
Description
Technical Field
The invention relates to the technical field of mechanical reset, in particular to a reset mechanism and a resettable operating lever.
Background
The reset mechanism is widely applied to small-sized manual operation mechanisms such as a control rod and the like and equipment such as some actuators, lifting platforms, dies, switches and the like which need to reciprocate, and when the equipment is not operated by external force, the equipment needs to be automatically reset to the middle position by the reset mechanism.
The reset mechanism mainly comprises a motor reset mechanism, an electromagnetic reset mechanism, a spring reset mechanism and the like, wherein the motor reset mechanism judges the position of the actuator by means of a sensor and controls the motor to drive the actuator to return to the middle position, the failure rate is high, the electromagnetic reset mechanism utilizes the electromagnetic property of the material of the actuator to enable the actuator to return to the middle position, the switching-on power of the electromagnetic mechanism is high, the energy consumption is high, and the spring reset mechanism absorbs and releases energy by means of deformation of a spring to drive a transmission part to realize the return-to-middle reset of the actuator.
The spring reset mechanism has the characteristics of simple structure, convenient installation, reliable use, low failure rate and long service life, is widely used at present, but the traditional spring reset mechanism mainly uses a torsion spring or a tension spring, is used for the reciprocating motion of large-scale equipment in the fields of spinning and machining, has larger overall size and longer recovery time, is unfavorable for being applied to small-sized manual equipment such as a control rod and the like, and can adjust the recovery force of the mechanism only by changing the spring, is unfavorable for maintainability and interchangeability of the mechanism and has no limiting structure, and the limiting purpose is achieved by means of an external mechanism.
Therefore, how to provide a reset mechanism and a resettable operating lever, which are suitable for small-sized manual operating equipment such as the operating lever, solve the problems that the maintenance and replacement of the existing spring reset mechanism are difficult, a limit structure is not arranged, and the return force of the spring cannot be adjusted autonomously, and are the problems to be solved by the technicians in the field.
Disclosure of Invention
In view of this, the invention provides a reset mechanism and a resettable lever, which can make the reset mechanism automatically return to the middle position when not receiving external force, and the compression amount of the spring can be automatically changed in the mechanism to change the restoring force of the reset mechanism, and meanwhile, a limiting structure is designed in the mechanism to limit the rotatable angle of the reset mechanism. The reset mechanism can be used on small-sized manual equipment such as a control lever.
In order to achieve the aim, the invention adopts the following technical scheme that the reset mechanism comprises a mounting plate, a guide rod and an elastic component;
An upper boss and a lower boss are fixed at the top end and the bottom end of one side wall of the mounting plate, an upper through hole is formed in the upper boss, a lower through hole is formed in the lower boss, the upper through hole and the lower through hole are coaxially arranged, a swing rod is rotatably connected to the mounting plate, and a roller is rotatably connected to one side of the swing rod, which faces the upper boss and the lower boss;
the guide rod penetrates through the upper through hole, and the bottom end of the guide rod is rotationally connected with the lower through hole;
The elastic component is sleeved on the guide rod and is in sliding connection with the guide rod, and the elastic component is arranged between the roller and the lower boss.
Through the technical scheme, the reset mechanism can automatically return to the middle position when no external force is applied, has low failure rate, is convenient to maintain and replace, and can be used on small-sized manual equipment such as a control rod and the like.
Preferably, in the above resetting mechanism, the side wall of the guide rod is provided with an external thread, the bottom end of the guide rod is connected with a thread bush in a threaded manner, the outer side wall of the thread bush is provided with a radially protruding end face gasket, and the upper surface of the end face gasket is abutted to the lower surface of the elastic component. The thread sleeve can change the initial compression amount of the elastic component, so that the initial restoring force of the restoring mechanism is improved, and the restoring process time is saved.
Preferably, in the above resetting mechanism, the elastic component comprises a pressing plate and a spring, the pressing plate is provided with a through hole and is connected to the guide rod in a sliding manner, a fixing pipe radially extends from the through hole, the spring is sleeved on the fixing pipe, the upper surface of the spring is abutted to the lower surface of the pressing plate, and the lower surface of the spring is abutted to the upper surface of the end face gasket. The fixed pipe can keep the self-balancing capability of the spring, prevents the spring from being unstable due to inclination, and ensures the self-resetting capability of the elastic component.
Preferably, in the resetting mechanism, a mounting hole is formed in the surface of the mounting plate, a supporting rod is fixed in the mounting hole, the supporting rod is connected with the swing rod in a rotating mode, the swing rod is arranged in the mounting hole, a threaded hole penetrating through the mounting hole is formed in the bottom of the mounting plate, a limit screw is connected in the threaded hole in a threaded mode, grooves are engraved in the periphery of the swing rod, and the grooves are abutted to the top ends of the limit screws. When the swing rod rotates to a corresponding angle, the limit screw can be contacted with the groove on the swing rod, so that the limit effect is achieved, and the problem that the swing rod can be limited by means of an external structure is solved.
Preferably, in the above resetting mechanism, the side wall of the swing rod is provided with a threaded hole, and is in threaded connection with a small shaft, and the small shaft is rotatably connected with the roller. Through the fixed gyro wheel of pony roll, when the pendulum rod rotated, the gyro wheel can press the clamp plate, makes the spring compressed.
Preferably, in the above resetting mechanism, the spring is a compression spring, an inner diameter of the spring is larger than an outer diameter of the connecting rod, and an inner diameter of the pressing plate is larger than a diameter of the guide rod. The compression bar can slide up and down in the guide rod, and when the spring releases elastic potential energy, the elastic component can automatically recover the middle position.
Preferably, in the above resetting mechanism, the top surface and the bottom surface of the guide rod are provided with a straight or cross-shaped notch. The screw sleeve can gradually rise under the action of friction force through rotating the guide rod, so that the initial compression amount of the spring can be adjusted.
The invention also provides a resettable operating lever, which comprises the resetting mechanism in the technical scheme, and further comprises:
the mounting plate is detachably connected to the inner wall of the control box of the control rod, and one end head of the control rod connected with the control box is fixedly connected with one surface of the swing rod, which is away from the roller.
Through the technical scheme, the reset mechanism provided by the invention can be arranged on small-sized manual equipment such as the operating lever, so that the self-reset function of the operating lever is realized, the operation flow is saved, meanwhile, the maintenance and the replacement are convenient, and the limiting device is arranged in the mechanism, so that the trouble of externally connecting a limiting structure is avoided.
Preferably, in the resettable lever, the surface of the same side of the rocker as the roller is fixedly connected with an end plate through a countersunk screw, the countersunk screw sequentially penetrates through the end plate and the rocker, and the countersunk screw penetrates through the rocker and then is fixedly connected with a rotating shaft of the lever. The swing rod is fixed between the end plate and the rotating shaft, and the swing rod can rotate according to the rotation of the rotating shaft.
Preferably, in the above-mentioned resettable lever, the number of the rollers is two, and the two rollers are symmetrically arranged on both sides of the guide rod. The self-resetting function can be realized in the multidirectional operation process of the operating rod.
Preferably, in the resettable lever, the reset mechanism is in a symmetrical balance state when the lever is not stressed, the swing rod rotates along with the rotating shaft when the lever is in an operation state, the pressing block slides downwards along the guide rod under the extrusion of the roller, the spring is compressed, the lever is released, the spring releases elastic potential energy of the spring to drive the pressing rod to slide upwards, and the structure is changed into an initial balance state, so that a reset process is completed.
Compared with the prior art, the invention discloses a spring return mechanism and a spring return method for a control lever, which have the following beneficial effects:
1. the screw sleeve can adjust the initial compression amount of the spring, control the initial restoring force of the structure and save the time of the restoring process.
2. The bottom of the mounting plate is provided with the limit screw which is matched with the groove grains around the swing rod, so that the limit effect is achieved, and the trouble of reconnecting an external limit structure is avoided.
3. The roller applies load to the pressing block, the pressing block can slide freely on the guide rod, so that the spring is compressed, the control is simple and convenient, and meanwhile, the structure is detachable in a connection mode, and the maintenance and the replacement are convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a spring return mechanism provided by the present invention;
FIG. 2 is an exploded view of the spring return mechanism provided by the present invention;
FIG. 3 is a front view of a spring return structure provided by the present invention;
FIG. 4 is a schematic view of a spring return structure according to the present invention;
FIG. 5 is a schematic view of the threaded sleeve of the spring return structure provided by the invention;
FIG. 6 is a compressed elevation view of a spring return structure spring provided by the present invention;
fig. 7 is a rear view of the spring return structure provided by the invention in a limited position during compression.
Wherein:
1-a mounting plate;
11-upper boss, 12-lower boss, 13-upper through hole, 14-lower through hole;
2-guide rod, 3-end plate, 4-swing rod and 5-roller;
60-an elastic component;
6-pressing plate, fixed tube (61), 7-small shaft;
8-spring, 9-thread sleeve and 10-limit screw.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1 to 4, the present embodiment discloses a reset mechanism, which includes a mounting plate 1, a guide rod 2 and an elastic component 60;
An upper boss 11 and a lower boss 12 are fixed at the top end and the bottom end of one side wall of the mounting plate 1, an upper through hole 13 is formed in the upper boss 11, a lower through hole 14 is formed in the lower boss 12, the upper through hole 13 and the lower through hole 14 are coaxially arranged, a swing rod 4 is rotatably connected to the mounting plate 1, and a roller 5 is rotatably connected to one side of the swing rod 4 facing the upper boss 11 and the lower boss 12;
The guide rod 2 passes through the upper through hole 13, and the bottom end is rotationally connected with the lower through hole 14;
The elastic component 60 is sleeved on the guide rod 2 and is in sliding connection with the guide rod 2, and the elastic component 60 is arranged between the roller 5 and the lower boss 12.
In order to further optimize the technical scheme, the side wall of the guide rod 2 is provided with external threads, the bottom end of the guide rod 2 is in threaded connection with a thread sleeve 9, the outer side wall of the thread sleeve 9 is provided with a radially protruding end face gasket, and the upper surface of the end face gasket is in butt joint with the lower surface of the elastic component 60.
In order to further optimize the technical scheme, the elastic component 60 comprises a pressing plate 6 and a spring 8, wherein the pressing plate 6 is provided with a through hole and is connected to the guide rod 2 in a sliding mode, a fixing pipe 61 is radially extended from the through hole, the spring 8 is sleeved on the fixing pipe 61, the upper surface of the spring 8 is abutted to the lower surface of the pressing plate 6, and the lower surface of the spring 8 is abutted to the upper surface of the end face gasket.
In the embodiment, the surface of the mounting plate 1 is provided with a mounting hole, a supporting rod is fixed in the mounting hole, the supporting rod is rotationally connected with a swinging rod 4, the swinging rod 4 is arranged in the mounting hole, the swinging rod 4 is an arc-shaped plate, the side wall of the arc-shaped plate is carved with groove grains, the bottom of the mounting plate 1 is provided with a threaded hole communicated with the mounting hole, and a limit screw is connected in the threaded hole in a threaded manner.
In order to further optimize the technical scheme, when the swing rod 4 rotates to the contact of the groove and the limit screw, the tip of the screw is contacted with the groove, and an operator can obviously feel the blocking of the control rod at the position, so that the limit effect is achieved.
In order to further optimize the technical scheme, the spring 8 is a compression spring, the inner diameter of the spring 8 is larger than the outer diameter of the connecting rod 61, and the inner diameter of the connecting rod 61 is larger than the diameter of the guide rod 2.
In order to further optimize the technical scheme, the top surface and the bottom surface of the guide rod 2 are provided with a straight or cross-shaped notch.
The reset mechanism disclosed by the invention can achieve the effect of self-reset by utilizing the release of the potential energy of the elastic component, can increase the initial restoring force of the elastic component by utilizing the threaded sleeve, saves the self-reset restoring time, and is convenient to maintain and replace in a detachable connection mode.
Example 2:
Referring to fig. 5-7, this embodiment discloses a resettable lever, comprising the mechanism of embodiment 1, comprising:
the mounting plate 1 is detachably connected to the inner wall of the control box of the control rod, and one end head of the control rod connected with the control box is fixedly connected with one surface of the swing rod 4, which is away from the roller 5.
In the embodiment, counter bores are formed in the periphery of the mounting plate and are in threaded connection with a control box of the operating rod.
In the embodiment, the end plate 3 is fastened on the swing rod 4 through a countersunk screw, the countersunk screw sequentially penetrates through the end plate 3 and the swing rod 4, and the countersunk screw penetrates through the swing rod 4 and is fixedly connected with the rotating shaft in the control box of the control rod.
In the embodiment, a small shaft 7 is connected to one side of the swing rod opposite to the roller 5 through bolts, and the roller 5 is rotatably connected to the small shaft 7.
In this embodiment, the number of rollers 5 is two, symmetrically on both sides of the guide rod 2.
Referring to fig. 3, the return mechanism is in a symmetrical equilibrium state when the lever is not subjected to an external force;
referring to fig. 6, when the operating lever is in an operating state, the swing rod rotates along with the rotating shaft, the pressing block moves downwards along the guide rod under the extrusion of the roller, the spring is compressed, when an operator releases the operating lever, the pressing block moves upwards due to the release of potential energy of the spring, and when the operating lever reaches the balance position shown in fig. 3, the pressing block does not move, and the operating lever returns to the middle, so that a reset process is completed.
Referring to fig. 5, in order to increase the restoring force of the restoring mechanism, the initial compression amount of the spring may be changed by screwing in the screw sleeve. The initial position of the thread bush is shown in fig. 3, the thread bush is in threaded fit with the guide rod, when the tool is screwed into a linear notch above the guide rod, the thread bush gradually rises under the action of friction force to reach the position shown in fig. 5, at the moment, the spring is compressed in a balanced state, when the operating rod reaches the same position, the operating rod obviously senses the increase of restoring force due to the increase of initial compression amount of the spring, and the time required for the whole restoring process of the operating rod is also reduced.
Referring to fig. 7, in order to increase the limit function of the spring return mechanism, the grooves are machined on the periphery of the swing rod, the number and the angle of the grooves are determined by the actual limit conditions, threaded holes are machined at the bottom of the mounting plate, limit screws are matched in the threaded holes, when the swing rod rotates to the groove to be in contact with the limit screws, the tips of the limit screws are in contact with the groove, and an operator can obviously feel the clamping of the control rod at the secondary position to play a limiting role.
The resettable operating lever disclosed by the invention can be applied to small-sized manual equipment such as the operating lever, and the limiting mechanism is further arranged in the resetting mechanism, so that the trouble of connecting the limiting device outside the operating lever is avoided.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310525651.1A CN116449909B (en) | 2023-05-11 | 2023-05-11 | Reset mechanism and resettable operating lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310525651.1A CN116449909B (en) | 2023-05-11 | 2023-05-11 | Reset mechanism and resettable operating lever |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116449909A CN116449909A (en) | 2023-07-18 |
| CN116449909B true CN116449909B (en) | 2025-09-09 |
Family
ID=87122071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310525651.1A Active CN116449909B (en) | 2023-05-11 | 2023-05-11 | Reset mechanism and resettable operating lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116449909B (en) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905010B1 (en) * | 1994-09-29 | 2001-12-05 | Starting Industrial Co., Ltd. | Operation lever unlocking mechanism |
| JP2005004315A (en) * | 2003-06-10 | 2005-01-06 | Japan Aviation Electronics Industry Ltd | Joystick device |
| KR100842816B1 (en) * | 2003-09-19 | 2008-07-01 | 국방과학연구소 | Centering Spring Device |
| AU2010354307B2 (en) * | 2010-05-26 | 2014-10-02 | Takano Co., Ltd. | Reaction Force Mechanism for Backrest of Chair and Chair Mounted with the Same |
| JP6062785B2 (en) * | 2013-03-29 | 2017-01-18 | 本田技研工業株式会社 | Inverted pendulum type vehicle |
| CN103552635A (en) * | 2013-11-03 | 2014-02-05 | 南京莱格威智能机器有限公司 | Two-wheel balance car reset device and self-balancing electric vehicle adopting same |
| US10073489B2 (en) * | 2015-09-21 | 2018-09-11 | Deere & Company | Rolling return to neutral depressable control |
| US9943757B2 (en) * | 2016-06-24 | 2018-04-17 | Microsoft Technology Licensing, Llc | Adjustable tension thumbstick |
| CN206421263U (en) * | 2016-12-31 | 2017-08-18 | 上海三立汇众汽车零部件有限公司 | A kind of adjustable parking brake control stick of spring force |
| DE102021115884A1 (en) * | 2021-06-18 | 2022-12-22 | elobau GmbH & Co.KG | Adaptive control module |
| CN114859546A (en) * | 2022-05-16 | 2022-08-05 | 徐州微普视光电科技有限公司 | Adjustable video endoscope of control rod damping |
| CN218244543U (en) * | 2022-09-16 | 2023-01-10 | 格力博(江苏)股份有限公司 | Lawn mower and operating mechanism for lawn mower |
| CN218440924U (en) * | 2022-11-01 | 2023-02-03 | 瑞力流体控制无锡有限公司 | Spring reset type pneumatic actuator structure |
| CN218630604U (en) * | 2022-12-13 | 2023-03-14 | 中国人民解放军陆军炮兵防空兵学院 | An omnidirectional rocker device |
| JP2025082364A (en) * | 2023-11-17 | 2025-05-29 | ヤンマーホールディングス株式会社 | Operation lever and construction machine |
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2023
- 2023-05-11 CN CN202310525651.1A patent/CN116449909B/en active Active
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