Connecting mechanism capable of preventing threads from being damaged

By introducing anti-damage components into the threaded connection mechanism, limiting the travel of the threaded portion, and using elastic materials for protection, the problem of damage caused by thread misalignment is solved, thus achieving reliability and durability of the threaded connection.

CN223854645UActive Publication Date: 2026-01-30ZF TRANSMISSIONS SHANGHAI
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Patent Information

Application Number
CN202520629167.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-01-30
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

When using threaded connections, the bolts continue to rotate due to inertia, causing the threads to misalign. This can lead to the threads getting stuck, decaying, or deforming, resulting in difficulties in connecting equipment and economic losses.

Method used

A connection mechanism for preventing thread damage was designed, including a bracket, a connector, and a damage-preventing component. The damage-preventing component is installed on the smooth part or the bracket, and the movement of the threaded part is limited by an elastic material to prevent the threads from misaligning. Elastic deformation is used to protect the threaded part from damage.

Benefits of technology

It effectively prevents thread jamming and wear, ensures smooth connection operations, protects the integrity of the thread structure, and reduces equipment damage and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The connecting mechanism capable of preventing the threads from being damaged comprises a support, a connecting piece and an anti-damage piece, the support is installed on first equipment, the support is provided with a threaded hole, the connecting piece comprises a head and a rod body, the rod body comprises a smooth part and a threaded part, and the smooth part and the threaded part are in threaded connection. The smooth part is formed by extending between the threaded part and the head part, and the connecting piece is installed on the support in the mode that the threaded part is matched with the threaded hole to penetrate through the threaded hole in a rotating mode so that the smooth part can be kept inserted into the threaded hole. The connecting piece rotates into the second device to connect the first device with the second device, the anti-damage piece is installed on the smooth part or the support, and the anti-damage piece is arranged to be capable of limiting the moving stroke of the connecting piece so as to prevent the threaded part from rotating into the threaded hole. The thread part is effectively prevented from being clamped due to thread staggering, so that the thread part is prevented from being broken or deformed.
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Description

Technical Field

[0001] This application relates to the field of connection structure technology, and in particular to a connection mechanism that prevents thread damage. Background Technology

[0002] Threaded connections are a common type of connection, offering advantages such as simple structure, reliable connection, and easy assembly and disassembly. When connecting two devices using a threaded connection, such as when a gearbox needs to be connected to an adapter for calibration, the bolt is rotated so that its smooth part moves along the threaded hole of the bracket mounted on one device. The threaded part of the bolt then rotates into the other device to connect the two devices into one unit.

[0003] When disassembling two devices, the power tool drives the bolt out of the other device and then removes it. Because the power tool is stopped, it will briefly continue to rotate due to inertia. During this time, the bolt is driven to continue rotating and moves under the influence of the removed power tool, causing the bolt's threaded portion to move towards the threaded hole of the bracket. Since the thread of the bolt cannot perfectly align with the threaded hole of the bracket, misalignment may occur, causing the threaded portion to jam. This can lead to thread damage or deformation, damaging the internal threads when connecting to the next device and causing unnecessary economic losses. Utility Model Content

[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a connection mechanism to prevent thread damage, the connection mechanism comprising:

[0005] A bracket, which is mounted on device one, has threaded holes;

[0006] A connector, comprising a head and a rod, the rod comprising a smooth portion and a threaded portion, the smooth portion extending between the threaded portion and the head, the connector being mounted on the bracket such that the threaded portion mates with the threaded hole and rotates through the threaded hole to keep the smooth portion inserted into the threaded hole, the connector being rotated into device two to connect device one to device two;

[0007] A damage prevention component is installed on the smooth portion or the bracket, and the damage prevention component is configured to limit the travel of the connector to prevent the threaded portion from rotating into the threaded hole.

[0008] According to one embodiment of this application, the anti-damage component is sleeved on the smooth portion, and the inner diameter of the anti-damage component is smaller than the diameter of the threaded portion. When the connector rotates to move the threaded portion in the direction of entering the threaded hole, the anti-damage component can move together with the connector to be pressed by the threaded portion and abut against the port of the threaded hole.

[0009] According to one embodiment of this application, the damage protection component is implemented as an elastic material. When the connector rotates to move the threaded portion in the direction of entering the threaded hole, the damage protection component, which is pressed against the threaded hole port by the threaded portion, undergoes elastic deformation.

[0010] According to one embodiment of this application, the damage protection component is detachably mounted on the bracket and is partially located on the side of the head away from the rod body inserted into the bracket. When the connector rotates to move the threaded portion in the direction of entering the threaded hole, the head abuts against the damage protection component before the threaded portion enters the threaded hole.

[0011] According to one embodiment of this application, the anti-damage component is installed on the bracket and located on the side of the threaded hole away from the head. The straight distance between the anti-damage component and the axis of the threaded hole gradually decreases along the direction of extension from the head to the rod body. One end of the anti-damage component is located in the extension direction of the threaded hole, and the anti-damage component is capable of elastic deformation.

[0012] According to one embodiment of this application, the bracket further has a receiving hole communicating with the threaded hole, the diameter of the receiving hole being greater than the diameter of the threaded hole, and the length of the receiving hole being not less than the length of the threaded portion, the receiving hole being used to receive the threaded portion.

[0013] According to one embodiment of this application, the bracket includes a frame body and a washer assembly. The threaded hole and the receiving hole are both formed in the frame body. The washer assembly includes a first washer, which is installed on the side of the head near the frame body. The first washer is used to separate the frame body from the head.

[0014] According to one embodiment of this application, the washer assembly further includes a second washer, which is installed on the side of the frame body away from the first washer, and the second washer is used to separate the frame body from the device.

[0015] According to one embodiment of this application, with reference to the direction in which the threaded portion extends toward the smooth portion, the cross-sectional dimension of the end of the threaded portion away from the smooth portion gradually increases.

[0016] According to one embodiment of this application, the head has a radial cross-sectional dimension that is a regular polygon. Attached Figure Description

[0017] Figure 1 A schematic diagram of the connection mechanism for preventing thread damage as described in this application is shown.

[0018] Figure 2 A structural cross-sectional view of the connection mechanism for preventing thread damage as described in this application is shown.

[0019] Figure 3 An exploded view of the structure of the anti-thread damage connection mechanism described in this application is shown. Detailed Implementation

[0020] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0021] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0023] refer to Figures 1 to 3A preferred embodiment of the anti-thread damage connection mechanism according to this application will be described in detail below. The anti-thread damage connection mechanism includes a bracket 10 and a connector 20. The bracket 10 is mounted on device one and has a threaded hole 101. The connector 20 includes a head 21 and a rod 22. The rod 22 includes a smooth portion 221 and a threaded portion 222, the smooth portion 221 extending between the threaded portion 222 and the head 21. The connector 20 is mounted on the bracket 10 such that the threaded portion 222 engages with the threaded hole 101 and rotates through the threaded hole 101, keeping the smooth portion 221 inserted into the threaded hole 101. The connector 20 is rotated into device two to connect device one to device two.

[0024] Preferably, with reference to the direction in which the threaded portion 222 extends toward the smooth portion 221, the cross-sectional dimension of the end of the threaded portion 222 away from the smooth portion 221 gradually increases, so that the connector 20 can quickly correspond to the screw hole of the second device.

[0025] Preferably, the head 21 has a regular polygonal cross-sectional dimension in the radial direction so that the connector 20 can be tightened using an electric wrench.

[0026] As deformable, a groove is formed on the end wall of the head 21 away from the rod 22 so as to tighten the connector 20 with an electric screwdriver.

[0027] refer to Figures 2 to 3 It is worth mentioning that the connection mechanism for preventing thread damage also includes a damage prevention component 30. The damage prevention component 30 is installed on the smooth part 221 or the bracket 10. The damage prevention component 30 is configured to limit the travel of the connector 20 to prevent the threaded part 222 from entering the threaded hole 101, effectively preventing the threaded part 222 from getting stuck due to thread misalignment, which could lead to the threaded part 222 becoming rotten or deformed, and ensuring that the connection operation can be carried out normally.

[0028] Preferably, the anti-damage component 30 is sleeved on the smooth portion 221, and the inner diameter of the anti-damage component 30 is smaller than the diameter of the threaded portion 222. When the connector 20 rotates to move the threaded portion 222 in the direction of entering the threaded hole 101, the anti-damage component 30 can move together with the connector 20 to be pressed by the threaded portion 222 and abut against the port of the threaded hole 101 to prevent the threaded portion 222 from entering the threaded hole 101.

[0029] Preferably, the anti-wear component 30 is made of an elastic material. When the connector 20 rotates to move the threaded portion 222 toward the threaded hole 101, the anti-wear component 30, which is pressed against the port of the threaded hole 101 by the threaded portion 222, undergoes elastic deformation to prevent wear.

[0030] Preferably, the anti-damage component 30 is implemented as a rubber gasket.

[0031] In one embodiment, the anti-damage component 30 is detachably mounted to the bracket 10 and partially located on the side of the head 21 away from the rod 22 inserted into the bracket 10. When the connector 20 rotates to move the threaded portion 222 toward the threaded hole 101, the head 21 abuts against the anti-damage component 30 before the threaded portion 222 enters the threaded hole 101, so that the anti-damage component 30 restricts the travel of the connector 20 to prevent the threaded portion 222 from entering the threaded hole 101.

[0032] In another embodiment, the anti-damage component 30 is mounted on the bracket 10 and located on the side of the threaded hole 101 away from the head 21. The linear distance between the anti-damage component 30 and the axis of the threaded hole 101 gradually decreases along the direction of extension from the head 21 to the rod 22, and one end of the anti-damage component 30 is located in the extension direction of the threaded hole 101, and the anti-damage component 30 is capable of elastic deformation. During the process of the connector 20 being inserted into the bracket 10, one end of the anti-damage member 30 is pressed away from the extension line of the axis of the threaded hole 101 by the threaded portion 222, so as to avoid the movement of the threaded portion 222; when the connector 20 is inserted into the bracket 10 with the smooth portion 221 held in the threaded hole 101, the anti-damage member 30 is spaced apart from the outer wall of the smooth portion 221; when the connector 20 is rotated so that the threaded portion 222 moves in the direction of being inserted into the threaded hole 101, the threaded portion 222 abuts against the anti-damage member 30, so as to be prevented from being inserted into the threaded hole 101.

[0033] refer to Figures 2 to 3 The bracket 10 also has a receiving hole 102 communicating with the threaded hole 101. The diameter of the receiving hole 102 is greater than the diameter of the threaded hole 101, and the length of the receiving hole 102 is not less than the length of the threaded portion 222. The receiving hole 102 is used to receive the threaded portion 222 so that the connector 20 can be inserted into the bracket 10 with the threaded portion 222 held in the receiving hole 102, so as to prevent the threaded portion 222 from being exposed and damaged by external force or from being contaminated, thus affecting subsequent use.

[0034] refer to Figures 1 to 3 Preferably, the bracket 10 includes a bracket body 11 and a washer assembly 12, wherein the threaded hole 101 and the receiving hole 102 are both formed in the bracket body 11. The washer assembly 12 includes a first washer 121, which is installed on the side of the head 21 near the bracket body 11. The first washer 121 is used to separate the bracket body 11 from the head 21, so as to prevent the head 21 from moving close to the bracket body 11 and directly applying pressure to the bracket body 11, causing scratches, when the connector 20 rotates to move the threaded portion 222 away from the threaded hole 101.

[0035] The washer assembly 12 further includes a second washer 122, which is installed on the side of the frame body 11 away from the first washer 121. The second washer 122 is used to separate the frame body 11 from the device 2, so as to prevent the frame body 11 from directly applying pressure to the device 2 during the process of the connector 20 rotating to turn the threaded portion 222 into the device 2, which would cause scratches.

[0036] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A connection mechanism that prevents damage to threads, characterized in that, The anti-thread-damage connecting mechanism comprises: a bracket mounted on a device one, the bracket having a threaded hole; a connecting piece comprising a head and a rod, the rod comprising a smooth portion and a threaded portion, the smooth portion extending between the threaded portion and the head, the connecting piece being mounted on the bracket in such a way that the threaded portion cooperates with the threaded hole and the smooth portion is inserted into the threaded hole, the connecting piece being rotated into a device two to connect the device one and the device two; an anti-damage piece mounted on the smooth portion or the bracket, the anti-damage piece being arranged to limit the movement range of the connecting piece to prevent the threaded portion from rotating into the threaded hole.

2. The thread-damagingly connection mechanism of claim 1, wherein The anti-damage piece is sleeved on the smooth portion, and the inner diameter of the anti-damage piece is smaller than the diameter of the threaded portion, when the connecting piece is rotated to move the threaded portion towards the direction of rotating into the threaded hole, the anti-damage piece can move together with the connecting piece to abut against the port of the threaded hole under the pressure of the threaded portion.

3. The thread-damagingly connection mechanism of claim 2, wherein, The anti-damage piece is made of elastic material, when the connecting piece is rotated to move the threaded portion towards the direction of rotating into the threaded hole, the anti-damage piece pressed against the port of the threaded hole under the pressure of the threaded portion is elastically deformed.

4. The thread-damagingly low connection mechanism according to claim 1, wherein The anti-damage piece is detachably mounted on the bracket and partially located on the side of the head away from the rod inserted into the bracket, when the connecting piece is rotated to move the threaded portion towards the direction of rotating into the threaded hole, the head abuts against the anti-damage piece before the threaded portion rotates into the threaded hole.

5. The thread-damagingly low connection mechanism according to claim 1, wherein The anti-damage piece is mounted on the bracket and located on the side of the threaded hole away from the head, the straight-line distance between the anti-damage piece and the axis of the threaded hole gradually decreases along the direction in which the head extends towards the rod, and one end of the anti-damage piece is located in the direction in which the threaded hole extends, and the anti-damage piece can be elastically deformed.

6. The thread-damagingly low connection mechanism of claim 1, wherein, The bracket further has a receiving hole in communication with the threaded hole, the receiving hole has a diameter larger than that of the threaded hole, and the length of the receiving hole is not less than the length of the threaded portion, the receiving hole being used to accommodate the threaded portion.

7. The thread-damagingly connection mechanism of claim 6, wherein The bracket comprises a bracket body and a gasket set, the threaded hole and the receiving hole are formed in the bracket body, and the gasket set comprises a first gasket mounted on the side of the head close to the bracket body, the first gasket being used to separate the bracket body and the head.

8. The thread-damagingly connection mechanism of claim 7, wherein, The gasket set further comprises a second gasket mounted on the side of the bracket body away from the first gasket, the second gasket being used to separate the bracket body and the device two.

9. The thread-damagingly low connection mechanism of claim 1, wherein, With reference to the direction in which the threaded portion extends towards the smooth portion, the cross-sectional size of one end of the threaded portion away from the smooth portion gradually increases.

10. The thread-damagingly low connection mechanism of claim 1, wherein, The cross-sectional size of the head in the radial direction is in the shape of a regular polygon.