Elastic claw fixed dust cover

Abstract

This utility model belongs to the field of dust cover technology and discloses an elastic claw-fixed dust cover. This elastic claw-fixed dust cover has a circular cover body with chamfered edges around its outer circumference. A supporting cylinder is located at the center of the inner wall of the circular cover body. Several elastic components are evenly distributed around the outer circumference of the supporting cylinder. Each elastic component includes a connecting part and an elastic claw. The two ends of the connecting part are connected to the outer wall of the supporting cylinder and the inner wall of the elastic claw, respectively. The connecting part has a slot, with the slot opening direction away from the circular cover body. This utility model has a simple structure. The fit between the dust cover and the track mounting hole is supported by the elastic components, avoiding burrs caused by interference fit. Due to the large elastic range of the elastic components, each foot of the dust cover can firmly abut against the track mounting hole wall, thus absorbing machining errors of the track mounting hole.

Description

Technical Field

[0001] This utility model relates to the field of dust cover technology, and in particular to a dust cover that is installed in a track mounting hole. Background Technology

[0002] In order to prevent iron filings or other impurities from entering the mounting holes of linear guides, dust covers need to be installed inside the mounting holes.

[0003] In existing technologies, dust covers for rail mounting holes typically consist of a disc-shaped body and an annular deformable ring connected to the body. Traditional dust covers have an interference fit with the rail mounting hole; when the body is subjected to external force entering the guide rail bolt hole, the deformable ring deforms to fill the gap between the body and the mounting hole. However, this interference fit is prone to producing burrs, making it difficult to absorb machining errors in the rail mounting hole and affecting work efficiency. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a flexible claw-fixed dust cover. This invention has advantages such as avoiding burr generation, absorbing processing errors, and having a reasonable structure, and is suitable for dust protection requirements of linear guide rail mounting holes.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A flexible claw-fixed dust cover has a round cover body with chamfers around its outer perimeter;

[0007] The inner wall of the circular cover body is provided with a supporting cylinder at the center. Several elastic components are evenly distributed on the outer circumference of the supporting cylinder. The elastic components include a connecting part and an elastic claw. The two ends of the connecting part are respectively connected to the outer wall of the supporting cylinder and the inner wall of the elastic claw.

[0008] The connecting part is provided with a slot, and the opening of the slot is set away from the body of the round cover.

[0009] The circular cover body is located on top of the dust cover. The outer circumference of the circular cover body is chamfered to mate with the chamfered edges of the track mounting holes, achieving a tight dustproof effect. A supporting cylinder is located in the lower center of the circular cover body. Its outer circumference is connected to multiple evenly distributed elastic components, providing robust support for these components. The elastic components are evenly distributed around the outer circumference of the supporting cylinder, each with an elastic claw on its outer side. The connecting part has a slot with a certain opening angle, allowing the elastic components to contract to a certain extent and react on the elastic claws, providing elastic force so that the elastic claws abut against the inner wall of the track mounting holes, with the claws in contact with the inner wall. Multiple elastic claws evenly distributed around the outer circumference of the supporting cylinder provide a uniformly oriented elastic force, confining the supporting cylinder to the center position of the track mounting holes, thus achieving stable fixation of the dust cover.

[0010] The number of elastic components must be three or more, and the number of slots can be one or more.

[0011] Furthermore, the elastic claw is positioned higher than the supporting cylinder. When the elastic claw deforms, it does not interfere with the supporting cylinder, a structure that allows the elastic claw to slide more smoothly into the track mounting hole.

[0012] Furthermore, the connecting part and the elastic claw have the same wall thickness. This structure helps ensure that the elastic component can deform evenly under force, avoiding stress concentration and deformation inconsistency caused by uneven wall thickness, thereby improving the fixing stability and service life of the dust cover.

[0013] Furthermore, the junction between the slot and the connecting part has a rounded corner structure. The rounded corner structure helps reduce stress concentration and prevents cracks or fractures from occurring at the root of the slot due to excessive stress, thereby improving the strength and durability of the connecting part.

[0014] Furthermore, the slot is a V-shaped slot. The V-shaped slot has a larger opening angle and a deeper slot depth, which can provide a larger range of elastic deformation, allowing the elastic claw to better adapt to the machining errors of the track mounting hole while maintaining sufficient fixing force.

[0015] Furthermore, the groove is a U-shaped groove. The U-shaped groove has a relatively gentle bottom and side walls, which can provide more uniform elastic deformation, allowing the elastic claw to deform more smoothly when subjected to force, reducing vibration and noise, while maintaining a good fixing effect.

[0016] Furthermore, the groove height h is less than the connection height H. This structure helps ensure that the connection maintains sufficient strength and rigidity during elastic deformation, avoiding insufficient strength of the connection due to excessive groove height, thereby ensuring the fixation stability and reliability of the dust cover.

[0017] Furthermore, a gap is provided between the bottom edge of the elastic claw and the edge of the round cover body, and the top of the elastic claw is inclined outward. This structure helps the elastic claw to retract smoothly when inserted into the track mounting hole, and after insertion, it firmly abuts against the inner wall of the track mounting hole through elastic force, achieving stable fixation of the dust cover. At the same time, the gap also helps to reduce the frictional resistance of the dust cover during the insertion process.

[0018] Furthermore, the top of the elastic claw is provided with an inclined surface to facilitate guided installation. The highest point of the inclined surface is located on the inner wall of the elastic claw, and the lowest point is located on the outer wall of the elastic claw. This structure helps the elastic claw to slide more smoothly into the track mounting hole when the dust cover is installed, reducing jamming and resistance during the installation process and improving installation efficiency.

[0019] Furthermore, the top of the elastic claw is flat, and the outer wall of the elastic claw has protrusions. The flat design helps to increase the contact area between the elastic claw and the inner wall of the track mounting hole, improving the fixing stability; while the protrusions can further increase the friction between the elastic claw and the inner wall of the track mounting hole, preventing the dust cover from loosening or falling off during use.

[0020] Furthermore, the protrusion is an arc-shaped protrusion. The arc-shaped protrusion helps reduce stress concentration between the protrusion and the inner wall of the track mounting hole, avoiding damage to the inner wall or wear of the protrusion itself caused by an overly sharp protrusion shape, thereby improving the service life and fixing stability of the dust cover.

[0021] The beneficial effects of this utility model are as follows: This utility model has a simple structure and reasonable design, and has the following advantages:

[0022] (1) To avoid burr formation, elastic components provide elastic support, avoiding interference fit between the dust cover and the track mounting hole, thus eliminating the root cause of burr formation.

[0023] (2) Absorbing processing errors, the elastic component has a large elastic deformation range, which can adapt to the processing errors of the track mounting hole and ensure that the dust cover can be stably fixed in the track mounting hole;

[0024] (3) Improve the fixing stability. Through the inclined design of the elastic claw, the inclined guide, the planar contact and the raised friction and other structural features, the fixing stability between the dust cover and the track mounting hole is significantly improved, and the dust cover is prevented from loosening or falling off during use.

[0025] (4) Improve installation efficiency. The inclined guide design helps to reduce jamming and resistance during the installation process, thus improving the installation efficiency of the dust cover.

[0026] (5) Extend service life: Through the design of rounded corner structure, reasonable groove height and arc protrusion, stress concentration and wear problems are reduced, thereby extending the service life of the dust cover. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional schematic diagram of Example 1;

[0029] Figure 2 yes Figure 1 The front view;

[0030] Figure 3 This is a three-dimensional schematic diagram of Example 3;

[0031] Figure 4 yes Figure 3 The front view.

[0032] In the diagram: 1. Round cap, 2. Supporting cylinder, 3. Connecting part, 4. Elastic claw, 5. Slot, 6. Bevel, 7. Protrusion. Detailed Implementation

[0033] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this application. As used herein, the singular form includes the plural form unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this description, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] Example 1

[0037] like Figure 1 and Figure 2 The illustrated elastic claw-fixed dust cover has a circular cover body 1 with a chamfered outer circumference; a supporting cylinder 2 is provided at the center of the inner wall of the circular cover body 1, and a number of elastic components are evenly distributed on the outer circumference of the supporting cylinder 2. The elastic components include a connecting part 3 and an elastic claw 4. The two ends of the connecting part 3 are respectively connected to the outer wall of the supporting cylinder 2 and the inner wall of the elastic claw 4; the connecting part 3 is provided with a slot 5, and the opening direction of the slot 5 is set away from the circular cover body 1; the elastic claw 4 is set higher than the supporting cylinder 2.

[0038] The connecting part 3 and the elastic claw 4 have the same wall thickness.

[0039] The connection between the slot 5 and the connecting part 3 is a rounded corner structure.

[0040] Groove 5 is a V-shaped groove.

[0041] The height h of the slot 5 is less than the height H of the connecting part 3.

[0042] A gap is provided between the bottom edge of the elastic claw 4 and the edge of the round cover body 1, and the top of the elastic claw 4 is inclined outward.

[0043] The top of the elastic claw 4 is provided with an inclined surface 6 for easy guidance and installation. The highest point of the inclined surface 6 is located on the inner wall of the elastic claw 4, and the lowest point of the inclined surface 6 is located on the outer wall of the elastic claw 4.

[0044] During installation of the elastic claw-fixed dust cover in this embodiment, the guide effect of the inclined surface 6 allows the elastic claw 4 to slide more smoothly into the track mounting hole, reducing jamming and resistance during installation. Multiple elastic claws 4 and the connecting parts 3 connected to the elastic claws 4 elastically contract, and the elastic force is fed back to the supporting cylinder 2. The supporting cylinder 2 then reacts on the connecting part 3, providing it with support. Simultaneously, the elastic force is fed back to the elastic claws 4, causing them to firmly press against the inner wall of the track mounting hole, thus securing the dust cover.

[0045] Example 2

[0046] The difference from Example 1 is that the slot 5 is a U-shaped slot.

[0047] Example 3

[0048] like Figure 3 and Figure 4 The dust cover shown is a type with an elastic claw fixing mechanism, which differs from Embodiment 1 in that the top of the elastic claw 4 is flat, and the outer wall of the elastic claw 4 has a protrusion 7; the protrusion 7 is an arc-shaped protrusion. The protrusion 7 can increase the contact area and friction with the inner wall of the track mounting hole, thereby improving the fixing stability of the dust cover.

[0049] In summary, this utility model has a simple structure. The fit between the dust cover and the track mounting hole is supported by the elastic component, which avoids burrs caused by interference fit. Because the elastic component has a large elastic range, each foot of the dust cover can firmly abut against the wall of the track mounting hole, thus absorbing the machining error of the track mounting hole.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dust cover with elastic claw fixing, characterized in that: It has a round cover body (1), and the outer periphery of the round cover body (1) is chamfered; The inner wall of the round cover body (1) is provided with a supporting cylinder (2). A number of elastic components are evenly distributed on the outer circumference of the supporting cylinder (2). The elastic components include a connecting part (3) and an elastic claw (4). The two ends of the connecting part (3) are respectively connected to the outer wall of the supporting cylinder (2) and the inner wall of the elastic claw (4). The connecting part (3) is provided with a slot (5), and the opening direction of the slot (5) is away from the round cover body (1).

2. The elastic claw-fixed dust cover according to claim 1, characterized in that: The elastic claw (4) is positioned higher than the supporting cylinder (2), and the connecting part (3) and the elastic claw (4) have the same wall thickness.

3. The elastic claw-fixed dust cover according to claim 1, characterized in that: The connection between the slot (5) and the connecting part (3) is a rounded corner structure.

4. The elastic claw-fixed dust cover according to claim 3, characterized in that: The slot (5) is a V-shaped slot.

5. The elastic claw-fixed dust cover according to claim 3, characterized in that: The slot (5) is a U-shaped slot.

6. The elastic claw-fixed dust cover according to claim 1, characterized in that: The height h of the slot (5) is less than the height H of the connecting part (3).

7. The elastic claw-fixed dust cover according to claim 1, characterized in that: A gap is provided between the bottom edge of the elastic claw (4) and the edge of the round cover body (1), and the top of the elastic claw (4) is inclined outward.

8. The elastic claw-fixed dust cover according to claim 7, characterized in that: The elastic claw (4) has a bevel (6) at its top end for easy guidance and installation.

9. The elastic claw-fixed dust cover according to claim 7, characterized in that: The top of the elastic claw (4) is flat, and the outer wall of the elastic claw (4) is provided with protrusions (7).

10. The elastic claw-fixed dust cover according to claim 9, characterized in that: The protrusion (7) is an arc-shaped protrusion.

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