Stainless steel fastener with adjustable fastening force

By introducing a connecting block and connecting groove meshing design into the stainless steel fastener, combined with the cooperation of the unlocking rod and the return spring, the problem of inconvenient locking in the prior art is solved, realizing convenient connection and disassembly of the fastener, and preventing accidental dislodgement.

CN224229020UActive Publication Date: 2026-05-12DONGTAI ZHANXIN STAINLESS STEEL FASTENERS MFG CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGTAI ZHANXIN STAINLESS STEEL FASTENERS MFG CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing stainless steel fasteners require aligning the positioning block and positioning groove before locking, and then fixing them by rotating the locking bolt, which is extremely inconvenient.

Method used

The design employs connecting blocks and connecting grooves, achieving fastener connection through the meshing of fixing teeth and locking teeth, and adjusting the tightening force through the cooperation of unlocking rod and return spring, combined with a protective plate to prevent accidental operation.

Benefits of technology

It enables convenient connection and disassembly of fasteners, allows adjustment of tightening force, prevents accidental loosening, and improves the convenience and stability of operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224229020U_ABST
    Figure CN224229020U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of stainless steel fasteners, and discloses a stainless steel fastener capable of adjusting fastening force, which comprises a first fastener and a second fastener, a connecting mechanism is arranged outside the first fastener and the second fastener, a protective mechanism is arranged on the inner side of the first fastener and the inner side of the second fastener, and the connecting mechanism is connected with the protective mechanism. The connecting mechanism comprises a connecting block and a connecting groove, fixing teeth are fixedly connected to one end of the connecting block, a fixing rod is rotatably connected to the inner side of the connecting groove, locking teeth are fixedly connected to one end of the fixing rod, a reset spring is fixedly connected to one end of the locking teeth, and an unlocking rod is fixedly connected to one end of the fixing rod. According to the stainless steel fastener capable of adjusting the fastening strength, the effects of conveniently disassembling and adjusting the fastening strength are achieved through the connecting mechanism.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of stainless steel fastener technology, specifically to stainless steel fasteners with adjustable tightening force. Background Technology

[0002] Stainless steel is short for stainless and acid-resistant steel. Steels that are resistant to weak corrosive media such as air, steam, and water, or that have rust-resistant properties, are called stainless steel. Steels that are resistant to chemical corrosion media (acids, alkalis, salts, etc.) are called acid-resistant steel. Fasteners are a type of mechanical part used for fastening connections and are widely used. Stainless steel is a corrosion-resistant material, and fasteners made of stainless steel are durable, have strong corrosion resistance, and are widely used.

[0003] According to Chinese Patent Publication No. CN 222277132 U, an adjustable stainless steel fastener is disclosed. The device includes a first steel fastener and a second fastener. The other end of the first steel fastener is provided with a positioning seat, and the inner side of the positioning seat is provided with a first positioning groove and a second positioning groove. The other end of the second fastener is provided with a first positioning block and a second positioning block. The first positioning block is locked in the first positioning groove. A first locking mechanism is provided between the first positioning block and the first positioning groove. The second positioning block is inserted into the second positioning groove. In this utility model, the other ends of the first steel fastener and the second fastener are fixed by the positioning seat, the first positioning groove, the second positioning groove, the first positioning block and the second positioning block. At the same time, a first locking mechanism is provided between the first positioning block and the first positioning groove, and a second locking mechanism is provided between the second positioning block and the second positioning groove. This makes the connection and fixation between the first steel fastener and the second fastener highly stable and convenient and quick to assemble and disassemble.

[0004] However, when using the above-mentioned existing technology, it is necessary to first align the first positioning block with the first positioning groove and the second positioning block with the second positioning groove, and then fix the first locking block by rotating the locking bolt. At the same time, the second locking block is triggered to insert into the locking hole by adjusting the lever, which makes locking extremely inconvenient. Therefore, we urgently need a stainless steel fastener with adjustable tightening force. Utility Model Content

[0005] The purpose of this utility model is to provide a stainless steel fastener with adjustable tightening force to solve the problem mentioned in the background art that, when using the prior art, it is necessary to first align the first positioning block with the first positioning groove and the second positioning block with the second positioning groove, and then fix the first locking block by rotating the locking bolt. At the same time, the second locking block is triggered to insert into the locking hole by adjusting the lever, which makes locking extremely inconvenient.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustable tightening force stainless steel fastener, including a first fastener and a second fastener, wherein a connecting mechanism is provided on the outside of the first fastener and the second fastener, and a protective mechanism is provided on the inside of the first fastener and the second fastener.

[0007] The connecting mechanism includes a connecting block and a connecting groove. One end of the connecting block is fixedly connected to a fixing tooth. The inner side of the connecting groove is rotatably connected to a fixing rod. One end of the fixing rod is fixedly connected to a locking tooth. One end of the locking tooth is fixedly connected to a return spring. One end of the fixing rod is fixedly connected to an unlocking rod. One end of the unlocking rod is fixedly connected to a connecting plate.

[0008] Preferably, multiple connecting blocks are provided, and the multiple connecting blocks are fixedly connected to one end of the first fastener.

[0009] Preferably, multiple connecting slots are provided, and all of the multiple connecting slots are provided at one end of the second fastener.

[0010] Preferably, both the connecting block and the connecting groove are arc-shaped, and the unlocking rod passes through the second fastener and extends to the outside of the second fastener.

[0011] Preferably, the protective mechanism includes a protective plate, a sliding block is fixedly connected to the outside of the protective plate, and a locking block is fixedly connected to one end of the sliding block.

[0012] Preferably, the protective plate is T-shaped, and one end of the sliding block is slidably connected to one end of the second fastener.

[0013] Preferably, there are two sliding blocks, and the two sliding blocks are symmetrically distributed.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] First, this utility model uses a first fastener and a second fastener connected by a hinge. The first and second fasteners are then fitted onto the outside of the part to be fastened. By rotating the second fastener, a connecting block at one end slides into the connecting groove of the second fastener. The fixing teeth on the outside of the connecting block engage with the locking teeth on the outside of the fixing rod. Since the fixing rod is rotatably connected to the inside of the connecting groove, and with the help of a return spring, the connecting block engages with the locking teeth after sliding into the connecting groove, allowing it to slide in but not pull out, thus completing the connection between the first and second fasteners. The fastening force of the first and second fasteners can be adjusted by the depth of the connecting block sliding into the connecting groove. When it is necessary to release the connection between the first and second fasteners, simply pull the connecting plate, which pulls multiple unlocking rods and causes multiple fixing rods to retract, releasing the engagement of the locking teeth and fixing teeth. This allows the second fastener to be pulled, releasing the connection between the first and second fasteners, thus achieving the effect of convenient disassembly and adjustment of the fastening force.

[0016] Secondly, the protective plate of this utility model can block the connecting plate, preventing accidental contact with the connecting plate and causing the first and second fasteners to fall off. When needed, the operator pulls the protective plate, causing the sliding block to slide inside the second fastener, thereby lifting the protective plate until the locking block engages with the second fastener. Then the operator can pull the connecting plate, achieving the effect of preventing accidental contact. Attached Figure Description

[0017] Figure 1 This is a perspective view of the entire utility model;

[0018] Figure 2 This is a perspective view of the quick-connector of this utility model;

[0019] Figure 3 This is a top sectional view of the present invention;

[0020] Figure 4 This is an enlarged view of section A of this utility model;

[0021] Figure 5 This is a cross-sectional view of the protective mechanism of this utility model.

[0022] Wherein: 1. First fastener; 2. Second fastener; 3. Connecting mechanism; 4. Protective mechanism; 31. Connecting block; 32. Connecting groove; 33. Fixing tooth; 34. Fixing rod; 35. Locking tooth; 36. Return spring; 37. Unlocking rod; 38. Connecting plate; 41. Protective plate; 42. Sliding block; 43. Locking block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides the following technical solution:

[0025] Example 1

[0026] Please see Figure 1-5 The adjustable tightening force stainless steel fastener includes a first fastener 1 and a second fastener 2. The first fastener 1 and the second fastener 2 are provided with a connecting mechanism 3 on their exterior and a protective mechanism 4 on their interior.

[0027] The connecting mechanism 3 includes a connecting block 31 and a connecting groove 32. One end of the connecting block 31 is fixedly connected to a fixing tooth 33. The inner side of the connecting groove 32 is rotatably connected to a fixing rod 34. One end of the fixing rod 34 is fixedly connected to a locking tooth 35. One end of the locking tooth 35 is fixedly connected to a return spring 36. One end of the fixing rod 34 is fixedly connected to an unlocking rod 37. One end of the unlocking rod 37 is fixedly connected to a connecting plate 38.

[0028] Multiple connecting blocks 31 are provided, and multiple connecting blocks 31 are fixedly connected to one end of the first fastener 1.

[0029] Multiple connecting slots 32 are provided, and all connecting slots 32 are provided at one end of the second fastener 2.

[0030] Both the connecting block 31 and the connecting groove 32 are arc-shaped, and the unlocking rod 37 passes through the second fastener 2 and extends to the outside of the second fastener 2.

[0031] Through the above technical solution, the first fastener 1 and the second fastener 2 are rotatably connected by a hinge. The first fastener 1 and the second fastener 2 are then fitted onto the outside of the part to be fixed. By rotating the second fastener 2, the connecting block 31 at one end slides into the connecting groove 32 of the second fastener 2. The fixing teeth 33 on the outside of the connecting block 31 engage with the locking teeth 35 on the outside of the fixing rod 34. Since the fixing rod 34 is rotatably connected to the inside of the connecting groove 32, and with the cooperation of the return spring 36, the connecting block 31, after sliding into the connecting groove 32, engages with the locking teeth 35, thus preventing the fastener from being fixed. The fastener slides in and cannot be pulled out, thus completing the connection between the first fastener 1 and the second fastener 2. The depth of the connecting block 31 sliding into the connecting groove 32 allows adjustment of the fastening force of the first fastener 1 and the second fastener 2. When it is necessary to disconnect the connection between the first fastener 1 and the second fastener 2, simply pull the connecting plate 38, which will pull multiple unlocking rods 37 and drive multiple fixing rods 34 to retract, releasing the engagement between the locking tooth 35 and the fixing tooth 33. This allows the second fastener 2 to be pulled, thus disconnecting the first fastener 1 and the second fastener 2, achieving the effect of convenient disassembly and adjustment of the fastening force.

[0032] Example 2

[0033] Please see Figure 1-5 Furthermore, based on Embodiment 1, the protective mechanism 4 includes a protective plate 41, a sliding block 42 is fixedly connected to the outside of the protective plate 41, and a locking block 43 is fixedly connected to one end of the sliding block 42.

[0034] The protective plate 41 is T-shaped, and one end of the sliding block 42 is slidably connected to one end of the second fastener 2.

[0035] There are two sliding blocks 42, and the two sliding blocks 42 are set to be symmetrically distributed.

[0036] Through the above technical solution, the protective plate 41 can block the connecting plate 38, preventing accidental contact with the connecting plate 38 and causing the first fastener 1 and the second fastener 2 to fall off. When needed, the operator pulls the protective plate 41, causing the sliding block 42 to slide inside the second fastener 2, thereby lifting the protective plate 41 until the locking block 43 engages with the second fastener 2. Then the operator can pull the connecting plate 38, achieving the effect of preventing accidental contact.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel fastener with adjustable tightening force, comprising a first fastener (1) and a second fastener (2), characterized in that: The first fastener (1) and the second fastener (2) are provided with a connecting mechanism (3) on their exteriors, and a protective mechanism (4) is provided on the interiors of the first fastener (1) and the second fastener (2). The connecting mechanism (3) includes a connecting block (31) and a connecting groove (32). One end of the connecting block (31) is fixedly connected to a fixing tooth (33). The inner side of the connecting groove (32) is rotatably connected to a fixing rod (34). One end of the fixing rod (34) is fixedly connected to a locking tooth (35). One end of the locking tooth (35) is fixedly connected to a return spring (36). One end of the fixing rod (34) is fixedly connected to an unlocking rod (37). One end of the unlocking rod (37) is fixedly connected to a connecting plate (38).

2. The stainless steel fastener with adjustable tightening force according to claim 1, characterized in that: Multiple connecting blocks (31) are provided, and multiple connecting blocks (31) are fixedly connected to one end of the first fastener (1).

3. The stainless steel fastener with adjustable tightening force according to claim 1, characterized in that: Multiple connecting slots (32) are provided, and all of the multiple connecting slots (32) are provided at one end of the second fastener (2).

4. The stainless steel fastener with adjustable tightening force according to claim 1, characterized in that: Both the connecting block (31) and the connecting groove (32) are arc-shaped, and the unlocking rod (37) passes through the second fastener (2) and extends to the outside of the second fastener (2).

5. The stainless steel fastener with adjustable tightening force according to claim 1, characterized in that: The protective mechanism (4) includes a protective plate (41), a sliding block (42) is fixedly connected to the outside of the protective plate (41), and a locking block (43) is fixedly connected to one end of the sliding block (42).

6. The stainless steel fastener with adjustable tightening force according to claim 5, characterized in that: The protective plate (41) is T-shaped, and one end of the sliding block (42) is slidably connected to one end of the second fastener (2).

7. The stainless steel fastener with adjustable tightening force according to claim 5, characterized in that: There are two sliding blocks (42), and the two sliding blocks (42) are symmetrically distributed.