Efficient transmission mechanical part structure

By introducing an adjustment groove and screw system into the hand crank structure, the problem of the inability to adjust the distance between the handle and the output end is solved, improving transmission efficiency and operating comfort, and adapting to users with different hand lengths.

CN223498590UActive Publication Date: 2025-10-31SHANGHAI LIQI IND CO LTD
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Patent Information

Application Number
CN202423309678.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-31
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The existing hand crank structure cannot effectively adjust the distance between the handle and the output end when transmitting motion and force, which makes it inconvenient for users with different hand lengths to operate and affects the transmission efficiency.

Method used

A mechanical component structure including a connecting plate and a screw was designed. By setting an adjustment groove and adjustment block on the connecting plate, combined with the screw and guide slide, the distance between the handle and the output end can be adjusted. Anti-slip sleeves and bearings are provided to reduce friction.

Benefits of technology

It enables the adjustment of the appropriate distance between the handle and the output end according to the user's hand length, thereby improving transmission efficiency, reducing operating force, and adapting to the needs of different users.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of mechanical parts, and particularly relates to an efficient transmission mechanical part structure which comprises a connecting plate and a screw. An adjusting groove in the same axial direction as the connecting plate is formed in the front side of the connecting plate, an adjusting block is slidably arranged on the inner side of the adjusting groove in the axial direction of the connecting plate, a handle is rotatably arranged at the front end of the adjusting block, and a dustproof plate parallel to the connecting plate is fixedly arranged on the outer side wall, located on the front surface of the connecting plate, of the adjusting block and is in attached sliding connection with the connecting plate; the end, away from the rear side of the handle, of the connecting plate is fixedly provided with an output end. The screw is rotationally arranged in an inner cavity of the adjusting groove and is parallel to the adjusting groove, and a rod body of the adjusting groove penetrates through the side wall of the adjusting block in a threaded connection and transmission mode. According to the utility model, the appropriate distance between the handle and the output end can be adjusted according to users with different hand lengths, so that more labor is saved when the output end is rotated, and the transmission efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical parts technology, specifically to a mechanical parts structure for high-efficiency transmission. Background Technology

[0002] A hand crank is a mechanical component structure that transmits motion and force through manual operation. It achieves the transmission of motion and force through human operation. Its structure mainly consists of a rod-shaped handle, a connecting plate, and an output end. The handle is designed with ergonomics in mind to ensure that users can hold and operate it comfortably. When the user applies force to the joystick handle, the force is transmitted to the output end through the connecting plate, thereby driving the relevant equipment or mechanism to complete the intended motion function.

[0003] If we consider the connecting plate as a lever and the output end as the fulcrum, the longer the distance between the handle and the output end, the more effort can be saved in theory. However, since the handle needs to be held by the human hand and the handle and connecting plate are rotated by swinging the arm, if the distance between the handle and the output end is increased excessively and exceeds the range of the human hand swing, the operation will become inconvenient. Therefore, it is necessary to set an appropriate distance for users with different hand lengths. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A mechanical component structure for high-efficiency transmission, comprising a connecting plate and a screw;

[0007] The front side of the connecting plate is provided with an adjustment groove in the same direction as the connecting plate axis. An adjustment block is slidably arranged on the inner side of the adjustment groove along the axial direction of the connecting plate. A handle is rotatably arranged at the front end of the adjustment block. A dustproof plate parallel to the connecting plate is fixedly arranged on the outer side wall of the adjustment block at the front surface of the connecting plate. The dustproof plate is slidably connected to the connecting plate. The dustproof plate always covers the front side of the adjustment groove. An output end is fixedly arranged at the rear end of the connecting plate away from the handle.

[0008] The screw is rotatably disposed in the inner cavity of the adjusting groove and parallel to the adjusting groove. The rod body of the adjusting groove is screwed through the side wall of the adjusting block. The inner cavity of the adjusting groove is fixedly disposed at a position symmetrical above and below the screw, and a guide slide rod parallel to the screw is fixedly disposed. The rod body of the guide slide rod slides through the side wall of the adjusting block.

[0009] As a preferred embodiment of the efficient transmission mechanical component structure described in this utility model, the outer wall of the handle is fixedly fitted with an anti-slip sleeve, and the surface of the anti-slip sleeve is provided with anti-slip texture.

[0010] As a preferred embodiment of the mechanical component structure for efficient transmission described in this utility model, the front sidewall of the connecting plate is provided with symmetrically protruding limit strips on the front surface of the adjusting groove. The side cross-section of the limit strips is L-shaped, and the upper and lower edges of the dustproof plate are slidably locked in the concave side of the limit strips.

[0011] As a preferred embodiment of the mechanical component structure for high-efficiency transmission described in this utility model, the side wall of the adjusting block has a threaded hole for the screw rod body to be threaded through and a through hole for the guide slide rod body to slide through. A linear bearing that slides in contact with the guide slide rod body is fixedly installed on the inner side wall of the through hole.

[0012] As a preferred embodiment of the efficient transmission mechanical component structure described in this utility model, the connecting plate has an inner cavity for mounting. One end of the screw extends and rotatably penetrates the inner wall of the mounting cavity and is fixedly mounted with a first bevel gear. The rear wall of the mounting cavity is rotatably penetrated by a rotating rod perpendicular to the mounting cavity. The front end of the rotating rod is fixedly mounted with a second bevel gear meshing with the first bevel gear, and the rear end is mounted with a knob.

[0013] As a preferred embodiment of the mechanical component structure for high-efficiency transmission described in this utility model, one end of the screw is rotatably mounted on the inner wall of the adjusting groove via a first bearing seat, and the other end rotatably penetrates the inner wall of the mounting cavity via a first bearing sleeve.

[0014] The rear end of the handle rotates on the front side wall of the adjusting block via the second bearing seat;

[0015] The shaft of the rotating rod rotates through the rear side of the mounting cavity via the second bearing sleeve.

[0016] Compared with the prior art, the beneficial effects of this utility model are: it can adjust the appropriate distance between the handle and the output end for users with different hand lengths, making it easier to rotate the output end and improving the efficiency of transmission. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the exploded view of this utility model;

[0020] Figure 3 This utility model Figure 2 A structural diagram in the rear view direction;

[0021] Figure 4 This is a schematic diagram of the internal components of the mounting cavity of this utility model;

[0022] Figure 5 This utility model Figure 1 A schematic diagram of the structure after the position of the middle handle is adjusted.

[0023] In the diagram: connecting plate 100, adjusting groove 101, adjusting block 102, handle 103, anti-slip sleeve 104, dustproof plate 105, limit clip 106, output end 107, screw 200, guide slide rod 201, screw hole 202, linear bearing 203, mounting cavity 204, first bevel gear 205, rotating rod 206, second bevel gear 207, knob 208. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Please see Figures 1-5 The diagram shown is a structural schematic of an embodiment of a high-efficiency transmission mechanical component according to this utility model. Please refer to [link / reference]. Figures 1-5 This paper provides a detailed description of the structure of a mechanical component for high-efficiency transmission.

[0029] A high-efficiency transmission mechanical component structure, comprising a connecting plate 100 and a screw 200;

[0030] The front side of the connecting plate 100 is provided with an adjustment groove 101 that is in the same direction as the axial direction of the connecting plate 100. An adjustment block 102 is slidably arranged on the inner side of the adjustment groove 101 along the axial direction of the connecting plate 100. A handle 103 is rotatably arranged at the front end of the adjustment block 102. A dustproof plate 105 parallel to the connecting plate 100 is fixedly arranged on the outer side wall of the adjustment block 102 at the front surface of the connecting plate 100. The dustproof plate 105 is slidably connected to the connecting plate 100 and always covers the front side of the adjustment groove 101. An output end 107 is fixedly arranged at the rear end of the connecting plate 100 away from the handle 103.

[0031] The screw 200 is rotatably disposed in the inner cavity of the adjusting groove 101 and parallel to the adjusting groove 101. The rod body of the adjusting groove 101 is screwed through the side wall of the adjusting block 102. The inner cavity of the adjusting groove 101 is fixedly disposed at a position symmetrical above and below the screw 200, and a guide slide rod 201 parallel to the screw 200 is fixedly disposed there. The rod body of the guide slide rod 201 slides through the side wall of the adjusting block 102.

[0032] Furthermore, an anti-slip sleeve 104 is fixedly sleeved on the outer side wall of the handle 103. The surface of the anti-slip sleeve 104 is provided with anti-slip texture, which increases the friction with the user's palm.

[0033] Furthermore, the front sidewall of the connecting plate 100 is provided with symmetrically protruding limit strips 106 on the front surface of the adjusting groove 101. The side cross-section of the limit strips 106 is L-shaped, and the upper and lower edges of the dustproof plate 105 are slidably locked in the concave side of the limit strips 106. The dustproof plate 105 is used to shield and block the front side of the adjusting groove 101, thereby reducing dust from entering the interior of the adjusting groove 101. The rear surface of the dustproof plate 105 can also be provided with a sealing layer to make its sealing with the front sidewall of the connecting plate 100 better. The length of the dustproof plate 105 is at least not less than the length of two adjusting grooves 101, and its width is also greater than the width of the adjusting groove 101.

[0034] Furthermore, the side wall of the adjusting block 102 has a screw hole 202 for the screw rod 200 to be screwed through, and a through hole for the guide slide rod 201 to slide through. The inner side wall of the through hole is fixedly provided with a linear bearing 203 that slides in contact with the guide slide rod 201. The linear bearing 203 reduces the friction between the adjusting block 102 and the guide slide rod 201 when the adjusting block 102 is displaced.

[0035] Furthermore, the inner cavity of the connecting plate 100 is provided with an installation cavity 204. One end of the screw 200 extends and rotatably penetrates the inner side wall of the installation cavity 204 and is fixedly provided with a first bevel gear 205. The rear side wall of the installation cavity 204 is rotatably provided with a rotating rod 206 perpendicular to the installation cavity 204. The front end of the rotating rod 206 is fixedly provided with a second bevel gear 207 that meshes with the first bevel gear 205, and the rear end is provided with a knob 208. The knob 208 drives the rotating rod 206 to rotate, and then the screw 200 is rotated by the second bevel gear 207 and the first bevel gear 205.

[0036] Furthermore, one end of the screw 200 is rotatably mounted on the inner wall of the adjusting groove 101 via a first bearing seat, and the other end rotatably passes through the inner wall of the mounting cavity 204 via a first bearing sleeve; the rear end of the handle 103 is rotatably mounted on the front wall of the adjusting block 102 via a second bearing seat; the rod body of the rotating rod 206 rotatably passes through the rear side of the mounting cavity 204 via a second bearing sleeve. The various bearing seats and bearing sleeves reduce the friction when the components rotate, making it more labor-saving.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mechanical component structure for high-efficiency transmission, characterized in that, Includes connecting plate (100) and screw (200); The front side of the connecting plate (100) is provided with an adjustment groove (101) that is in the same direction as the axial direction of the connecting plate (100). An adjustment block (102) is slidably provided on the inner side of the adjustment groove (101) along the axial direction of the connecting plate (100). A handle (103) is rotatably provided at the front end of the adjustment block (102). A dustproof plate (105) parallel to the connecting plate (100) is fixedly provided on the outer side wall of the adjustment block (102) at the front surface of the connecting plate (100). The dustproof plate (105) is in close contact with the connecting plate (100) and is slidably connected. The dustproof plate (105) always covers the front side of the adjustment groove (101). An output end (107) is fixedly provided at the rear end of the connecting plate (100) away from the handle (103). The screw (200) is rotatably disposed in the inner cavity of the adjusting groove (101) and parallel to the adjusting groove (101). The rod body of the adjusting groove (101) is screwed through the side wall of the adjusting block (102). The inner cavity of the adjusting groove (101) is fixedly disposed at a position symmetrical above and below the screw (200) with a guide slide rod (201) parallel to the screw (200). The rod body of the guide slide rod (201) slides through the side wall of the adjusting block (102).

2. The mechanical component structure for high-efficiency transmission according to claim 1, characterized in that: The outer wall of the handle (103) is fixedly fitted with an anti-slip sleeve (104), and the surface of the anti-slip sleeve (104) is provided with anti-slip texture.

3. The mechanical component structure for high-efficiency transmission according to claim 1, characterized in that: The front sidewall of the connecting plate (100) is provided with symmetrically protruding limit strips (106) on the front surface of the adjustment groove (101). The side view cross-section of the limit strip (106) is "L" shaped, and the upper and lower edges of the dustproof plate (105) are slidably locked in the concave side of the limit strip (106).

4. The mechanical component structure for high-efficiency transmission according to claim 1, characterized in that: The side wall of the adjusting block (102) has a screw hole (202) through which the screw rod (200) is screwed and passed, and a through hole through which the guide slide rod (201) is slidably passed. A linear bearing (203) is fixedly installed on the inner side wall of the through hole and slides in contact with the guide slide rod (201).

5. The mechanical component structure for high-efficiency transmission according to claim 1, characterized in that: The inner cavity of the connecting plate (100) is provided with an installation cavity (204). One end of the screw (200) extends and rotatably penetrates the inner side wall of the installation cavity (204) and is fixedly provided with a first bevel gear (205). The rear side wall of the installation cavity (204) is rotatably provided with a rotating rod (206) perpendicular to the installation cavity (204). The front end of the rotating rod (206) is fixedly provided with a second bevel gear (207) meshing with the first bevel gear (205), and the rear end is provided with a knob (208).

6. The mechanical component structure for high-efficiency transmission according to claim 5, characterized in that: One end of the screw (200) is rotatably mounted on the inner wall of the adjusting groove (101) via the first bearing seat, and the other end is rotatably passed through the inner wall of the mounting cavity (204) via the first bearing sleeve. The rear end of the handle (103) rotates on the front side wall of the adjusting block (102) via the second bearing seat; The shaft of the rotating rod (206) rotates through the rear side of the mounting cavity (204) via the second bearing sleeve.