Buckle structure for controlling distance between shafts

Abstract

The utility model discloses a buckle structure for controlling the distance between shafts, which comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are mutually clamped to form the buckle structure, the first clamping piece and / or the second clamping piece have / has elasticity, the buckle structure further comprises at least one shaft positioning hole, and the shaft positioning hole is arranged in the first clamping piece and / or the second clamping piece. And the shaft positioning hole is used for limiting the shaft part. According to the novel buckle structure, the first clamping piece and the second clamping piece are clamped to form the buckle structure, installation can be completed only by clamping the first clamping piece and the second clamping piece, the buckle structure is simple, installation is convenient and fast, operation and maintenance are easy, the use cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a buckle structure, in particular to a buckle structure for controlling axle spacing. Background Art

[0002] The buckle structure is a connection method for combining the parts of the product. The traditional mechanical buckle structure uses springs, threads, lock tongues, hinges and other components to fix and adjust the axis spacing. For example, in some designs, a retractable or rotatable buckle component is set at one end of the shaft. When the shaft is inserted into the matching hole or groove, the buckle automatically snaps into the preset position under the action of the spring force, thereby limiting the axial movement of the shaft and maintaining the axis spacing. However, the buckle structure is complex in design and requires professional tools or complex operating steps to complete the adjustment of the axis spacing, which is not conducive to daily maintenance and quick adjustment. Utility Model Content

[0003] The purpose of the utility model is to provide a buckle structure for controlling the axle spacing to overcome the above technical problems.

[0004] In order to achieve the above objectives, the technical solution adopted by the utility model is: a snap structure for controlling the axis spacing, including a first snap connector and a second snap connector, the first snap connector and the second snap connector are snapped together to form a snap structure, the first snap connector and / or the second snap connector are elastic, and the snap mechanism also includes at least one axis positioning hole, which is used to limit axis parts.

[0005] Furthermore, a clamping groove is provided on the first clamping member, and a clamping protrusion is provided on the second clamping member. The shape and size of the protrusion are adapted to the clamping groove, and the clamping protrusion is accommodated in the clamping groove to connect the first clamping member and the second clamping member.

[0006] Furthermore, the first clip connector and the second clip connector both include a convex connection surface and a concave connection surface, the convex connection surface and the concave connection surface are connected via a "U"-shaped connection portion, the convex connection surface is provided with a clamping protrusion, and the concave connection surface is provided with a clamping groove, the protrusion of the first clip connector is accommodated in the clamping groove of the second clip connector, and the protrusion of the second clip connector is accommodated in the clamping groove of the first clip connector, and the first clip connector and the second clip connector are clamped with each other to form the shaft positioning hole.

[0007] Furthermore, the shape of the protrusion is trapezoidal, T-shaped or water drop-shaped.

[0008] Further, a first positioning hole is provided on the first clamping member and / or the second clamping member. The first positioning hole penetrates through the side wall of the shaft positioning hole and communicates with the shaft positioning hole. The positioning rod is threadedly connected to the positioning hole, and the positioning rod passes through the first positioning hole and extends into the shaft positioning hole.

[0009] Further, a strip-shaped groove extending downward from the upper end opening is provided on the first clamping member. The strip-shaped groove provides elasticity for the side wall of the first clamping member at the upper end to deform radially inward or outward. The second clamping member is arranged at the upper end of the first clamping member and can provide a radially inward pressure on the side wall of the upper end of the second clamping member.

[0010] Further, arc-shaped surfaces are symmetrically arranged on the left and right side surfaces of the strip-shaped groove, and the radian of the arc-shaped surface is adapted to the radian of the shaft-like part.

[0011] Further, a second positioning hole is provided on the second clamping member. The side wall of the strip-shaped groove passes through the second positioning hole, and the second positioning hole limits the distance of the side wall of the strip-shaped groove.

[0012] Further, a third positioning hole is provided on the second clamping member. The third positioning hole is vertically arranged with the second positioning hole, and the third positioning hole communicates with the second positioning hole.

[0013] Further, a limiting sliding groove extending from the upper end to the lower end is provided on the outer side of the side wall. The second clamping member is in a "U" shape, and the second clamping member can slide downward along the limiting sliding groove.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1) Through the setting of the snap structure formed by the mutual engagement of the first clamping member and the second clamping member, only by engaging the first clamping member and the second clamping member, the installation can be completed. The snap mechanism is simple, the installation is convenient, and it is a new snap structure that is easy to operate and maintain, reducing the use cost and improving the work efficiency.

[0016] 2) For the snap structure of the present application, through the setting of the shaft positioning hole and the arc-shaped surface, the adjustment accuracy of the shaft spacing is greatly improved, ensuring the stability and performance during the operation of the equipment. It overcomes the technical problem that the snap structure in the prior art may have low accuracy when adjusting the shaft spacing and cannot meet the requirements of precision equipment or high-precision occasions.

[0017] 3) The first clip and / or the second clip are elastically arranged to adapt to the clip structure of different specifications and load requirements, so that it has a wider range of applications. This solves the problem that the existing clip structure may only be applicable to specific shaft diameters, wheelbases or load types, and has low versatility. It also improves the durability and stability of the clip, and can maintain good performance even under harsh working conditions, solving the problem that the existing clip structure may wear and loosen after long-term use, resulting in failure of the wheelbase control.

[0018] 4) The buckle structure of the present application can be used repeatedly to improve efficiency and control the deformation of long-axis products during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a three-dimensional diagram of a first buckle mechanism of an embodiment of the utility model;

[0022] Figure 2 A three-dimensional diagram of a second buckle mechanism according to an embodiment of the utility model;

[0023] Figure 3 An exploded view of a second buckle mechanism according to an embodiment of the utility model;

[0024] Figure 4 A three-dimensional diagram of a third buckle mechanism according to an embodiment of the present utility model;

[0025] Figure 5 It is a three-dimensional diagram of a fourth buckle mechanism of an embodiment of the utility model;

[0026] Figure 6 A three-dimensional diagram of a fifth buckle mechanism according to an embodiment of the present utility model;

[0027] Figure 7 It is a three-dimensional diagram of a sixth buckle mechanism of an embodiment of the utility model;

[0028] Figure 8 It is a three-dimensional diagram of a seventh buckle mechanism of an embodiment of the utility model;

[0029] Fig. 9 It is a cross-sectional view of a seventh buckle mechanism according to an embodiment of the utility model.

[0030] In the figure: 1. clamping member; 11. first clamping member; 111. strip groove; 112. side wall; 113. arc surface; 114. limit slide groove; 12. second clamping member; 121. second positioning hole; 122. third positioning hole; 13. convex connecting surface; 14. concave connecting surface; 15. connecting part; 16. clamping groove; 17. raised part; 2. shaft positioning hole; 3. positioning rod. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0032] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0033] The existing buckle structure mainly includes the following features:

[0034] 1) Mechanical buckle design: The traditional mechanical buckle structure fixes and adjusts the axis spacing through springs, threads, lock tongues, hinges and other components. For example, in some designs, a retractable or rotatable buckle component is set at one end of the shaft. When the shaft is inserted into the matching hole or groove, the buckle automatically snaps into the preset position under the action of the spring force, thereby limiting the axial movement of the shaft and maintaining the axis spacing.

[0035] 2) Floating snap-fit ​​design: In some precision equipment, in order to accommodate slight assembly tolerances, a floating snap-fit ​​structure is designed that can fine-tune or automatically compensate for gaps, and dynamic control is achieved through the deformation of elastic elements or hydraulic or pneumatic systems.

[0036] 3) Nested or spliced ​​design: The purpose of controlling the distance between axes is achieved by designing a nested structure of shafts and buckle parts, or connecting the shafts with detachable spliced ​​buckles. This method can achieve precise adjustment of the distance between axes and is also easy to disassemble and maintain.

[0037] 4) Electronic intelligent control: In the design of high-tech fields, electronic sensors and actuators, such as electric motors and solenoid valves, may be combined to achieve precise electronic control of the axis spacing, especially in automation and intelligent equipment.

[0038] However, such buckle structures in the prior art generally have the following shortcomings:

[0039] Limited adjustment accuracy: Some existing snap-on structures for controlling axle spacing have limitations in design and manufacturing accuracy, which may result in inaccurate adjustment of axle spacing, especially in application scenarios with high precision requirements.

[0040] Low durability: After long-term or repeated use, some buckle structures may cause degradation of the fixing or adjustment function due to material wear, reduced elasticity, etc., affecting the stable control of the axle spacing.

[0041] Operational complexity: Some buckle structures are complex in design and require professional tools or complicated operating steps to adjust the axle spacing, which is not conducive to daily maintenance and quick adjustment.

[0042] Insufficient adaptability: Existing buckle structures may only be applicable to axle spacing adjustment within a specific range, and are not adaptable to axles of different sizes, shapes or weights, and lack universality.

[0043] Poor responsiveness to load changes: In the case of large load changes, the existing snap-fit ​​structure may not be able to effectively maintain the constant axis spacing, especially in dynamic load or vibration environments, the control effect may be compromised.

[0044] Safety considerations: Some snap-on structures may not be able to effectively prevent the shaft from disengaging when suddenly impacted or overloaded, posing a safety hazard.

[0045] High cost and maintenance cost: The manufacturing cost and subsequent maintenance cost of some precise or complex snap-on structures are relatively high, which puts pressure on the operating costs of enterprises.

[0046] See attached Figure 1 As shown, a snap-in structure for controlling the axle spacing in this embodiment can be used repeatedly to improve efficiency and control the deformation of long-axis products during movement. It includes a snap-in 1, and the snap-in 1 includes a first snap-in 11 and a second snap-in 12. The first snap-in 11 and the second snap-in 12 are engaged with each other to form a snap-in structure. The first snap-in 11 and / or the second snap-in 12 are elastic. The snap-in 1 is provided with an elastic element or an adaptive mechanism, so that the snap-in structure can still maintain a good locking force in a dynamic environment, preventing the axle spacing from drifting due to external forces, thereby improving the operating stability and accuracy of the entire system.

[0047] See attached Figure 1 As shown, in some implementations, the clamping member 1 is a rectangular parallelepiped structure, and an axis positioning hole 2 is provided in the thickness direction of the clamping member 1, and the axis positioning hole 2 is used to limit the position of the axis part. The first clamping member 11 is provided with a clamping groove 16, and the second clamping member 12 is provided with a clamping protrusion 17. The shape and size of the protrusion 17 are adapted to the clamping groove 16. The clamping protrusion 17 is accommodated in the clamping groove 16 to connect the first clamping member 11 and the second clamping member 12. After the first clamping member 11 and the second clamping member 12 are clamped, the two axis positioning holes 2 respectively limit two different axis parts and limit the distance between the two axis parts.

[0048] In some embodiments, a first positioning hole is provided on the first clamping member 11, the first positioning hole passes through the side wall of the shaft positioning hole 2 and is connected with the positioning hole, the positioning rod 3 is threadedly connected with the first positioning hole, the positioning rod 3 passes through the first positioning hole and extends into the shaft positioning hole 2 to abut and clamp against shaft parts to prevent the shaft parts from moving in the axial direction.

[0049] See attached Figure 2-5 As shown, in some embodiments, the first clamping member 11 and the second clamping member 12 have the same structure, both including a convex connection surface 13 and a concave connection surface 14, the convex connection surface 13 and the concave connection surface 14 are connected by a "U"-shaped connection portion 15, the convex connection surface 13 is provided with a clamping protrusion 17, the concave connection surface 14 is provided with a clamping groove 16, the protrusion 17 of the first clamping member 11 is accommodated in the clamping groove 16 of the second clamping member 12, and the protrusion 17 of the second clamping member 12 is accommodated in the clamping groove 16 of the first clamping member 11. The first clamping member 11 and the second clamping member 12 are mutually clamped to form an elliptical shaft positioning hole 2, and multiple shaft parts can be placed in the shaft positioning hole 2, and the multiple shaft parts are limited by the shaft positioning hole 2.

[0050] In some embodiments, the shape of the protrusion 17 is a trapezoid, T-shaped, or water drop-shaped shape that is wide in front and narrow in the back. The material of the protrusion 17 is an elastically deformable material. Under the action of external force, the protrusion 17 is in the clamping groove 16 that is squeezed and elastically deformed. After entering the clamping groove 16, the protrusion 17 returns to its original shape. Since the shape of the protrusion 17 is a structure that is wide in front and narrow in the back, the shape of the clamping groove 16 is compatible with the shape of the protrusion 17. After the protrusion 17 enters the clamping groove 16 and recovers its shape, the protrusion 17 is clamped in the clamping groove 16 and cannot fall off, thereby connecting the two clamping parts 1.

[0051] Specifically, the material of the protrusion 17 is engineering plastics, which is acid-resistant and alkali-resistant, such as PVE, PVC, PP, PVC, Peek or PVDF. The material is stable, corrosion-resistant, and not easily damaged, which prolongs the service life of the buckle mechanism. This solves the problem that the existing buckle structure materials are easily damaged under specific working conditions, such as high temperature, low temperature, and corrosive environment, resulting in a shortened service life.

[0052] In some embodiments, the protrusion 17 and the clip 1 are integrally connected and use the same material, PVE or PVC material. The clip can be prepared by a melt injection molding process, which solves the problem that the production process of some shaft clips is complicated or requires special materials, which increases production costs and is not conducive to market competition.

[0053] See attached Figure 5 As shown, in some embodiments, a first positioning hole is provided on both the first clamping member 11 and the second clamping member 12, the first positioning hole penetrates the side wall of the shaft positioning hole 2 and communicates with the shaft positioning hole 2, the positioning rod 3 is threadedly connected with the first positioning hole, the positioning rod 3 passes through the first positioning hole and extends into the shaft positioning hole 2 to abut and clamp the shaft parts to prevent the shaft parts from moving in the axial direction. By providing the first positioning holes on both the first clamping member 11 and the second clamping member 12, the shaft parts are squeezed and fixed from both sides of the buckle structure, and the shaft parts are fixed, thereby improving the application range of the buckle mechanism.

[0054] See attached Figure 6-9 As shown, in some embodiments, the first clamping member 11 is provided with a strip groove 111 extending downward from the upper end opening, and the strip groove 111 provides elasticity for the side wall 112 of the first clamping member 11 located at the upper end to deform radially inward or outward, and the second clamping member 12 is provided at the upper end of the first clamping member 11, and can provide radial inward pressure to the side wall 112 at the upper end of the second clamping member 12. Through the provision of the strip groove 111, the two side walls 112 of the first clamping member 11 have the elasticity to deform radially inward or outward, and the axial parts are clamped and fixed by the two side walls 112. Through the provision of the strip groove 111, the structure of the first clamping member 11 itself has elastic force, and the shaft parts in the strip groove 111 can be clamped and fixed, without the need to provide other elastic clamping structures, so that the buckle structure is simple and easy to operate.

[0055] In some embodiments, arc-shaped surfaces 113 that are recessed inward are symmetrically provided on the left and right side faces of the strip-shaped groove 111, and the curvature of the arc-shaped surfaces 113 is adapted to the curvature of the shaft-like parts. The shaft-like parts are placed between two relatively arranged arc-shaped surfaces 113, and the parts are clamped by the arc-shaped surfaces 113, which can prevent the shaft-like parts from moving up and down. Moreover, by providing multiple groups of arc-shaped surfaces 113, multiple shaft-like parts can be clamped. The distance between two adjacent groups of arc-shaped surfaces 113 is the distance between two adjacent shaft-like parts. By controlling the distance between the two groups of arc-shaped surfaces 113, the axial distance between adjacent shaft-like parts can be controlled.

[0056] See the appendix Figure 6 and the appendix Figure 7 As shown, in some embodiments, a second positioning hole 121 is provided on the second clamping member 12, and two side walls 112 of the strip-shaped groove 111 pass through the second positioning hole 121. The second positioning hole 121 limits the distance between the side walls 112 of the strip-shaped groove 111, making the side walls 112 on both sides of the strip-shaped groove 111 in a clamping state to clamp and fix the shaft-like parts.

[0057] See the appendix Figure 6 As shown, in some embodiments, there are two second positioning holes 121, which are respectively sleeved on two sides of the strip-shaped groove 111 to fix the positions of the two side walls 112, and further fix the shaft-like parts located in the strip-shaped groove 111.

[0058] See the appendix Figure 7 As shown, there is one second positioning hole 121, and a third positioning hole 122 is provided on the second clamping member 12. The third positioning hole 122 penetrates the side wall of the second positioning hole 121 and communicates with the second positioning hole 121. The third positioning hole 122 is perpendicular to the second positioning hole 121. The positioning rod 3 is threadedly connected to the third positioning hole 122. The positioning rod 3 passes through the third positioning hole 122 and extends into the third positioning hole 122 to abut against the side wall 112 of the first clamping member 11, making the two side walls 112 approach each other and strengthening the clamping force between the side walls 112.

[0059] See the appendix Figure 8 and the appendix Fig. 9 As shown, in some embodiments, limiting sliding grooves 114 extending from the upper end to the lower end are provided on the outer sides of the two side walls 112. The second clamping member 12 is of a "U" - shaped structure, and the second clamping member 12 can slide downward along the limiting sliding grooves 114 to be inserted and fixed with the first clamping member 11, with simple installation and firm fixation.

[0060] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A buckle structure for controlling the distance between axes, characterized in that: The invention comprises a first clamping member (11) and a second clamping member (12), wherein the first clamping member (11) and the second clamping member (12) are engaged with each other to form a buckle structure, the first clamping member (11) and / or the second clamping member (12) are elastic, and the buckle structure further comprises at least one shaft positioning hole (2), and the shaft positioning hole (2) is used to limit the position of shaft parts.

2. The control axis spacing buckle structure according to claim 1, characterized in that: The first clamping member (11) is provided with a clamping groove (16), and the second clamping member (12) is provided with a clamping protrusion (17); the shape and size of the protrusion (17) are adapted to the clamping groove (16); the clamping protrusion (17) is accommodated in the clamping groove (16) to connect the first clamping member (11) and the second clamping member (12).

3. The control axis spacing buckle structure according to claim 1, characterized in that: The first clamping member (11) and the second clamping member (12) both comprise a convex connection surface (13) and a concave connection surface (14); the convex connection surface (13) and the concave connection surface (14) are connected via a "U"-shaped connection portion (15); a clamping protrusion (17) is provided on the convex connection surface (13); a clamping groove (16) is provided on the concave connection surface (14); the protrusion (17) of the first clamping member (11) is accommodated in the clamping groove (16) of the second clamping member (12); the protrusion (17) of the second clamping member (12) is accommodated in the clamping groove (16) of the first clamping member (11); the first clamping member (11) and the second clamping member (12) are mutually clamped to form the shaft positioning hole (2).

4. The control shaft spacing buckle structure according to claim 2 or 3, characterized in that: The shape of the protrusion (17) is trapezoidal, T-shaped or water drop-shaped.

5. The control shaft spacing buckle structure according to claim 2 or 3, characterized in that: A first positioning hole is provided on the first clamping member (11) and / or the second clamping member (12), the first positioning hole penetrates the side wall of the shaft positioning hole (2) and is in communication with the shaft positioning hole (2), the positioning rod (3) is threadedly connected to the positioning hole, and the positioning rod (3) passes through the first positioning hole and extends into the shaft positioning hole (2).

6. The control shaft spacing buckle structure according to claim 1, characterized in that: The first clamping member (11) is provided with a strip groove (111) extending downward from an upper opening, the strip groove (111) providing elasticity for radially inward or outward deformation of a side wall (112) of the first clamping member (11) located at the upper end, and the second clamping member (12) is provided at the upper end of the first clamping member (11) and can provide radially inward pressure to the side wall (112) at the upper end of the second clamping member (12).

7. The control shaft spacing buckle structure according to claim 6, characterized in that: The left and right side surfaces of the strip-shaped groove (111) are symmetrically provided with arc-shaped surfaces (113), and the curvature of the arc-shaped surfaces (113) is adapted to the curvature of the shaft-type parts.

8. The control shaft spacing buckle structure according to claim 6, characterized in that: The second clamping member (12) is provided with a second positioning hole (121), the side wall (112) of the strip groove (111) passes through the second positioning hole (121), and the second positioning hole (121) limits the distance of the side wall (112) of the strip groove (111).

9. The control shaft spacing buckle structure according to claim 8, characterized in that: A third positioning hole is provided on the second engaging member (12), the third positioning hole (122) is perpendicular to the second positioning hole (121), and the third positioning hole (122) communicates with the second positioning hole (121).

10. The control shaft spacing buckle structure according to claim 6, characterized in that: A limiting sliding groove (114) extending from the upper end to the lower end is provided on the outer side of the side wall (112), the second engaging member (12) is in a "U" shape, and the second engaging member (12) can slide downward along the limiting sliding groove (114).

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