CN219796063U

CN219796063U - Handle speed changer reset mechanism

Info

Publication number: CN219796063U
Application number: CN202321302911.0U
Authority: CN
Inventors: 姜伟; 王洪; 张永战; 王大勇; 黄硕
Original assignee: Jiangsu Shengbang Intelligent Control Technology Co ltd
Current assignee: Jiangsu Shengbang Intelligent Control Technology Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-10-03
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a handle speed changer reset mechanism which comprises a handle speed changer shell, a handle shaft, a steering joint, a friction limiting mechanism and a clamping reset mechanism. A handle shaft is arranged in the handle speed changer shell, and one end of the handle shaft, which is positioned in the handle speed changer shell, is connected with a steering joint. The friction limiting mechanism is arranged on one side of the steering joint and comprises a pair of friction pieces, and a pair of hexagon socket head cap screws are connected between the pair of friction pieces. The clamping reset mechanism is arranged on one side of the steering joint, which is far away from the friction piece, and comprises a median integral limiting block, a pair of roller brackets are arranged in the median integral limiting block, and clamping rollers are connected in the pair of roller brackets in a rotating manner. According to the utility model, through the arrangement of the clamping reset mechanism, the clamping limit function can be realized on the reset state of the handle speed changer, the condition that the handle speed changer is deviated in the reset process is reduced, and the reset stability of the handle speed changer is improved.

Description

Handle speed changer reset mechanism

Technical Field

The utility model belongs to the technical field of handle speed changers, and particularly relates to a handle speed changer reset mechanism.

Background

The handle speed changer is a common man-machine interface tool, is mainly used in the field of motion control of engineering machinery, transportation tools, measuring machinery and game equipment, and is mainly composed of a speed changer, a handle shaft, a control button, a sensing control component and other accessories, and in the use process, the operation state of the speed changer can be controlled by controlling the adjustment of the control gear of the speed changer.

Currently common handle variators mainly include: the automatic reset type and the manual reset type, wherein, when the hand breaks away from the handle shaft in the use of the automatic reset type handle speed changer, the handle shaft can be automatically reset to the original position, and the manual reset type handle speed changer can be fixed at a certain working position through friction of the friction plate in the use process, and compared with the automatic reset type handle speed changer, the manual reset type handle speed changer has the condition of not needing long-time manual support, and the use convenience is better.

The mode that the friction disc is arranged at the steering connection position of the handle shaft is mainly adopted in the common handle speed changer to limit and fix the handle speed changer, when the handle speed changer needs to be reset, an operator can rotate the handle shaft to a position which is not subjected to friction force in a manual handle shaft stirring mode, so that the handle speed changer is reset, and the mode enables the handle speed changer to be required to be according to friction resistance born by the handle shaft in the resetting process, so that the resetting state of the handle shaft is judged.

However, most of the handle variators in the prior art do not have a reset mechanism and cannot assist in resetting the handle shaft, so that the reset stability of the handle shaft is poor.

Accordingly, in view of the above-described problems, it is desirable to provide a handle transmission return mechanism.

Disclosure of Invention

The utility model aims to provide a handle speed changer resetting mechanism which is used for solving the problem of poor resetting stability of the handle speed changer.

In order to achieve the above object, an embodiment of the present utility model provides the following technical solution:

a handle transmission reset mechanism comprising: the handle transmission comprises a handle transmission shell, a handle shaft, a steering joint, a joint fixing piece, a friction limiting mechanism and a clamping reset mechanism.

The handle transmission shell is internally provided with a handle shaft, one end of the handle shaft, which is positioned in the handle transmission shell, is connected with a steering joint, and the outer side of the steering joint is rotationally connected with a joint fixing piece.

The friction limiting mechanism is arranged on one side of the steering joint and comprises a pair of friction pieces, the friction pieces are sleeved on the outer side of the steering joint, and a pair of hexagon socket screws are connected between the friction pieces.

The clamping reset mechanism is arranged on one side, far away from the friction piece, of the steering joint and comprises a median integral limiting block, a pair of roller supports are arranged in the median integral limiting block, the roller supports are symmetrically distributed on two sides of the steering joint, and the roller supports are internally and rotatably connected with clamping rollers.

Further, one end of the handle shaft, which is located outside the handle transmission housing, is connected with a handle body. The handle shaft is conveniently wrapped through the handle body, so that the handle shaft is conveniently controlled to move in a mode of applying acting force to the handle body. Meanwhile, the comfort of pushing and controlling the handle shaft is improved by arranging the handle main body. A rubber seat sleeve is arranged between the handle main body and the handle transmission shell, and the rubber seat sleeve is sleeved on the outer side of the handle shaft. The handle shaft is convenient to play a dustproof protection role through the rubber seat sleeve, and dust accumulation of the handle transmission shell in the use process is reduced.

Further, a guard board is arranged on one side, away from the joint fixing piece, of the friction piece, and the guard board is fixedly connected with the steering joint. The friction piece is convenient to limit through the guard plate. One side of the steering joint, which is far away from the guard plate, is connected with a cam. The operation state of the handle shaft is conveniently detected and judged in a mode that the cam rotates along with the rotation of the steering joint.

Further, a force compensation spring piece is arranged below the friction piece and is abutted against the friction piece under the action of a pair of hexagon socket screws. The mode that is convenient for carry out elasticity compensation to friction piece through the force compensation shell fragment makes a pair of friction piece fully centre gripping to the hexagon socket head cap screw. The situation that the clamping effect of the steering joint is poor due to the influence of the abrasion degree of the friction piece in the use process is reduced. The friction fixing stability of the steering joint is improved.

Further, one side of the middle position integral limiting block is connected with a pair of limiting fixing plates, and the limiting fixing plates are fixedly connected with the joint fixing piece. The centering integrated limiting block is convenient to assemble and fix in a mode of fixing the limiting fixing plate. A pair of reset clamping grooves are formed in the lower portion of the steering joint, and the reset clamping grooves are matched with the clamping rollers. The steering joint is clamped and limited by the mutual matching of the clamping roller and the reset clamping groove on the steering joint. Thereby improving the resetting stability of the steering joint.

Further, a pair of shrinkage limiting cavities are formed in the middle-position integrated limiting block, and the roller support is in sliding connection with the shrinkage limiting cavities. The clamping roller can correspondingly shrink along with the rotation of the steering joint in a sliding mode of the roller support in the shrinkage limiting cavity, so that the running stability of the steering joint is improved. Meanwhile, an assembly limiting space is provided for the spring through the shrinkage limiting cavity. And a spring is arranged in the shrinkage limiting cavity. The roller bracket is supported and reset through the contraction and the reset of the spring. One end of the spring, which is far away from the roller bracket, is provided with a pointed set screw which is in threaded connection with the middle position integrated limiting block. The spring is convenient to support and limit through the pointed set screw. The use stability of the spring is improved.

Compared with the prior art, the utility model has the following advantages:

according to the utility model, through the arrangement of the clamping reset mechanism, the clamping limit function can be realized on the reset state of the handle speed changer, the condition that the handle speed changer is deviated in the reset process is reduced, and the reset stability of the handle speed changer is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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 some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a cross-sectional view of a handle transmission reset mechanism in accordance with one embodiment of the present utility model;

FIG. 2 is a schematic diagram of the structure of FIG. 1 at A;

FIG. 3 is a partial perspective view of a handle transmission reset mechanism according to one embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of FIG. 3B;

FIG. 5 is a perspective view of a snap-on reset mechanism for a handle transmission reset mechanism in accordance with one embodiment of the present utility model;

FIG. 6 is a schematic view of a portion of a handle transmission reset mechanism according to an embodiment of the present utility model;

fig. 7 is a perspective view of a handle transmission reset mechanism in accordance with one embodiment of the present utility model.

In the figure: 1. handle transmission housing, 101, handle shaft, 102, steering joint, 103, joint mount, 104, handle body, 105, rubber seat cover, 106, guard, 107, cam, 2, friction stop mechanism, 201, friction element, 202, socket head cap screw, 203, force compensating spring, 3, snap-in return mechanism, 301, neutral integral stop, 302, roller bracket, 303, snap-in roller, 304, stop plate, 305, shrink stop cavity, 306, spring, 307, tip set screw.

Detailed Description

The present utility model will be described in detail below with reference to the embodiments shown in the drawings. The embodiments are not intended to limit the utility model, but structural, methodological or functional modifications from the embodiments are within the scope of the utility model.

The utility model discloses a handle transmission reset mechanism, which is shown in fig. 1-7 and comprises a handle transmission shell 1, a handle shaft 101, a steering joint 102, a joint fixing piece 103, a friction limiting mechanism 2 and a clamping reset mechanism 3.

Referring to fig. 3, a handle shaft 101 is provided in the handle transmission case 1. The handle shaft 101 is convenient for connecting and fixing the joint fixing piece 103 and the steering joint 102. So that the steering joint 102 can be moved correspondingly with the movement of the joint holder 103 under the action of the handle shaft 101. Thereby facilitating control of the transmission by means of movement control of the handle shaft 101.

Referring to fig. 3, a steering joint 102 is connected to an end of the handle shaft 101 located in the handle transmission housing 1. The steering joint 102 serves as a power transmission function for the handle shaft 101, and the cam 107 is driven to rotate by the steering joint 102. Meanwhile, the handle shaft 101 is convenient to fix and limit in a mode of clamping and limiting the steering joint 102.

Referring to fig. 1 to 6, a joint fixing member 103 is rotatably connected to the outer side of the steering joint 102. The steering joint 102 is conveniently assembled and fixed by the joint fixing piece 103.

Referring to fig. 6 to 7, a handle body 104 is connected to one end of the handle shaft 101 located outside the handle transmission case 1. The handle shaft 101 is conveniently wrapped by the handle body 104, so that the handle shaft 101 is conveniently controlled to move by applying a force to the handle body 104. Meanwhile, the comfort of the pushing control of the handle shaft 101 is improved by providing the handle body 104. A rubber sleeve 105 is arranged between the handle main body 104 and the handle transmission housing 1, and the rubber sleeve 105 is sleeved outside the handle shaft 101. The handle shaft 101 is conveniently protected from dust by the rubber sleeve 105, so that dust accumulation of the handle transmission housing 1 during use is reduced.

Referring to fig. 3-4, a guard plate 106 is provided on a side of the friction member 201 remote from the joint fixing member 103, and the guard plate 106 is fixedly connected to the steering joint 102. The friction member 201 is conveniently limited by the guard plate 106.

Referring to fig. 6, a cam 107 is connected to the steering joint 102 on the side remote from the apron 106. The operation state of the handle shaft 101 is detected and judged by the rotation of the cam 107 with the rotation of the steering joint 102.

Specifically, a pair of micro switches is provided below the cam 107. The movement state of the steering joint 102 can be detected and judged by the way that the cam 107 and the pair of micro switches are in contact with each other. The sensor board is electrically connected below the pair of micro switches. The sensor board plays a role in signal transmission to the micro switch.

Referring to fig. 3 to 6, the friction limiting mechanism 2 is provided on one side of the steering joint 102. The friction limiting mechanism 2 is convenient for playing a role in friction limiting on the steering joint 102. So that the steering joint 102 can be fixed in a certain working position, so that the handle shaft 101 does not need to be pushed manually by the operator all the time during use. The convenience of using the handle speed changer is improved.

Referring to fig. 3 to 6, the friction limiting mechanism 2 includes a pair of friction members 201, and the pair of friction members 201 are respectively sleeved outside the steering joint 102. The steering joint 102 is held in friction limiting by a pair of friction members 201. A pair of socket head cap screws 202 are connected between the pair of friction members 201. The friction member 201 is supported and fixed by a pair of socket head cap screws 202.

Specifically, the pair of friction members 201 are disposed in a concave arc shape.

Referring to fig. 3-4, a force compensation spring 203 is disposed below the friction member 201, and the force compensation spring 203 abuts against the friction member 201 under the action of a pair of socket head cap screws 202. The friction pieces 201 can be conveniently and elastically compensated by the force compensation elastic pieces 203, so that the pair of friction pieces 201 can fully clamp the socket head cap screws 202. The situation that the clamping effect of the steering joint 102 is poor due to the influence of the abrasion degree of the friction piece 201 in the use process is reduced. The friction fixing stability of the steering joint 102 is improved.

Referring to fig. 5, the engagement return mechanism 3 is provided on a side of the knuckle 102 remote from the friction member 201. The steering joint 102 is convenient to play a role of clamping limit through the clamping reset mechanism 3. Thereby facilitating an improvement in the stability of the return of the knuckle 102. The engagement reset mechanism 3 includes a median integral stopper 301. The roller bracket 302 is provided with a storage limiting function through the middle-position integrated limiting block 301.

Referring to fig. 5, a pair of roller brackets 302 are disposed in the middle integral limiting block 301, and the pair of roller brackets 302 are symmetrically disposed on two sides of the steering joint 102. The roller bracket 302 plays a role in supporting and limiting the clamping roller 303. A pair of roller brackets 302 are rotatably connected to engagement rollers 303. The steering joint 102 is convenient to clamp and limit through the clamping roller 303. Meanwhile, the rotation smoothness of the steering joint 102 is improved in a manner of facilitating rotation of the clamping roller 303 in the roller bracket 302.

Specifically, a pair of reset clamping grooves are formed below the steering joint 102, and the reset clamping grooves are matched with the clamping rollers 303. The cooperation of the clamping roller 303 and the reset clamping groove on the steering joint 102 plays a role in clamping and limiting the steering joint 102. Thereby improving the stability of the return of the knuckle 102.

Referring to fig. 5, a pair of limiting fixing plates 304 is connected to one side of the middle position integral limiting block 301, and the pair of limiting fixing plates 304 are fixedly connected to the joint fixing member 103. The centering integrated limiting block 301 is convenient to assemble and fix in a mode of fixing the limiting fixing plate 304.

Wherein, a pair of shrinkage limiting cavities 305 are arranged in the middle position integrated limiting block 301, and the roller bracket 302 is in sliding connection with the shrinkage limiting cavities 305. The clamping roller 303 can correspondingly contract along with the rotation of the steering joint 102 by sliding the roller bracket 302 in the contraction limiting cavity 305, so that the running stability of the steering joint 102 is improved. At the same time, the spring 306 is provided with an assembly limit space by contracting the limit cavity 305.

Referring to fig. 1-2, a spring 306 is disposed within the retraction limiting cavity 305. The roller bracket 302 is supported for return by the contraction and return of the spring 306. One end of the spring 306, which is far away from the roller bracket 302, is provided with a tip set screw 307, and the tip set screw 307 is in threaded connection with the middle position integral limiting block 301. The spring 306 is supported and limited conveniently by the pointed set screw 307. The stability of use of the spring 306 is improved.

When the steering device is specifically used, the handle shaft 101 is pushed and controlled in a mode of applying an acting force to the handle main body 104, the steering joint 102 correspondingly rotates along with the movement of the handle main body 104 under the action of the handle shaft 101 in the pushing process of the handle shaft 101, the cam 107 is synchronously driven through the rotation of the steering joint 102, the rotation state of the steering joint 102 is detected in a mode of detecting the rotation state of the cam 107, and therefore detection and judgment of the movement state of the handle shaft 101 are facilitated.

During the rotation process of the steering joint 102, the steering joint 102 is clamped and limited by the clamping friction of the pair of friction pieces 201, so that the handle shaft 101 can be fixed at a working position under the action of the friction pieces 201, and the convenience in use of the handle shaft 101 is improved. Meanwhile, the elastic force compensation function of the friction piece 201 can be achieved through the force compensation elastic piece 203, so that the pair of friction pieces 201 can continuously clamp and limit the steering joint 102, and the risk that the friction piece 201 cannot clamp and limit the steering joint 102 due to excessive abrasion is reduced.

In addition, when handle axle 101 needs to reset, make handle axle 101 reset under the exogenic action through the mode of manual promotion handle main part 104, in the reset process, carry out the block spacing to steering joint 102 through the mutual block of block draw-in groove and block gyro wheel 303 on steering joint 102, improved the stability that resets to steering joint 102.

The technical scheme shows that the utility model has the following beneficial effects:

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment contains only one independent technical solution, and that such description is provided for clarity only, and that the technical solutions of the embodiments may be appropriately combined to form other embodiments that will be understood by those skilled in the art.

Claims

1. A handle transmission reset mechanism, comprising:

the novel steering device comprises a handle transmission shell (1), wherein a handle shaft (101) is arranged in the handle transmission shell (1), one end of the handle shaft (101) positioned in the handle transmission shell (1) is connected with a steering joint (102), and the outer side of the steering joint (102) is rotationally connected with a joint fixing piece (103);

the friction limiting mechanism (2) is arranged on one side of the steering joint (102), the friction limiting mechanism (2) comprises a pair of friction pieces (201), the pair of friction pieces (201) are sleeved on the outer side of the steering joint (102), and a pair of hexagon socket head cap screws (202) are connected between the pair of friction pieces (201);

the clamping reset mechanism (3) is arranged on one side, far away from the friction piece (201), of the steering joint (102), the clamping reset mechanism (3) comprises a middle-position integrated limiting block (301), a pair of roller brackets (302) are arranged in the middle-position integrated limiting block (301), the roller brackets (302) are symmetrically distributed on two sides of the steering joint (102), and the roller brackets (302) are rotationally connected with clamping rollers (303).

2. The handle transmission resetting mechanism according to claim 1, wherein one end of the handle shaft (101) located outside the handle transmission housing (1) is connected with a handle main body (104), a rubber seat sleeve (105) is arranged between the handle main body (104) and the handle transmission housing (1), and the rubber seat sleeve (105) is sleeved outside the handle shaft (101).

3. The handle transmission resetting mechanism according to claim 1, wherein a guard plate (106) is arranged on one side of the friction piece (201) away from the joint fixing piece (103), the guard plate (106) is fixedly connected with the steering joint (102), and a cam (107) is connected on one side of the steering joint (102) away from the guard plate (106).

4. The handle transmission resetting mechanism according to claim 1, wherein a force compensation spring piece (203) is arranged below the friction piece (201), and the force compensation spring piece (203) is abutted against the friction piece (201) under the action of a pair of socket head cap screws (202).

5. The handle transmission resetting mechanism according to claim 1, wherein one side of the middle position integral limiting block (301) is connected with a pair of limiting fixing plates (304), the pair of limiting fixing plates (304) are fixedly connected with the joint fixing piece (103), a pair of resetting clamping grooves are formed below the steering joint (102), and the resetting clamping grooves are matched with the clamping rollers (303).

6. The handle transmission resetting mechanism according to claim 1, wherein a pair of shrinkage limiting cavities (305) are formed in the middle-position integral limiting block (301), the roller bracket (302) is slidably connected with the shrinkage limiting cavities (305), springs (306) are arranged in the shrinkage limiting cavities (305), tip set screws (307) are arranged at one ends, far away from the roller bracket (302), of the springs (306), and the tip set screws (307) are in threaded connection with the middle-position integral limiting block (301).