CN220037221U - Fastener with prevent tearing open function - Google Patents

Abstract

The utility model relates to the field of fasteners and discloses a fastener with an anti-disassembly function, which comprises a bolt, wherein the bolt comprises a screw rod and a clamping piece, the clamping piece is fixedly connected to the upper end of the screw rod, the diameter of the clamping piece is larger than that of the end face of the screw rod, two symmetrically arranged slots are formed in the upper surface of the clamping piece, plug blocks matched with the plug blocks are movably inserted into the slots, and hexagonal screwing blocks are fixedly connected to the upper ends of the plug blocks.

Description

Fastener with prevent tearing open function

Technical Field

The utility model relates to the field of fasteners, in particular to a fastener with an anti-disassembly function.

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. Fasteners are widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and are commonly as follows: bolts, nuts, hinges, fasteners, etc. all belong to the category of fasteners.

In order to further improve the disassembly and assembly efficiency of the fastener, the prior art makes a plurality of improvements on the fastener, for example, the patent with the publication number of CN209164296U discloses a cylinder head bolt, and the technical scheme is characterized in that a bolt body comprises a bolt head and a screw rod which is mutually connected with the bolt head, a bolt gasket is arranged between the bolt head and the screw rod, a sealing component is arranged on the bolt gasket, the sealing component comprises a plurality of mounting ring grooves arranged on the bolt gasket and sealing rings arranged in the mounting ring grooves, each mounting ring groove is annular, each mounting ring groove is arranged in a concentric circle, the thickness of the sealing rings is larger than the groove depth of the mounting ring groove, and the thickness difference between the two is between 0.8 and 1 mm.

The prior art has obvious beneficial effects, but has the following defects:

the bolt head in the prior art is arranged in a common hexagon, the anti-disassembly function is lacked in some special scenes such as outdoor use, the phenomenon that a tool is easy to disassemble the bolt head to steal an object fastened by the bolt is poor in installability, and the fastener with the anti-disassembly function is provided for the purpose.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a fastener with an anti-disassembly function, which at least solves one of the problems of the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fastener with prevent tearing open function, includes the bolt, and the bolt includes screw rod and clamping piece, clamping piece fixed connection in the upper end of screw rod, and the diameter of clamping piece is greater than the terminal surface diameter of screw rod, and the slot that two symmetries set up has been seted up to the upper surface of clamping piece, and the activity is pegged graft in the slot has the inserted block that matches with it, and the upper end fixedly connected with hexagonal of inserted block twists the piece.

Preferably, the slot is an arc-shaped long kidney-shaped slot.

Preferably, the upper surface of clamping piece has seted up the change groove, and the change inslot rotation is connected with the swivel, and the upper end outer wall fixedly connected with of swivel two separation blades of symmetry setting, separation blade and slot match and set up.

Preferably, the two inserts are respectively arranged corresponding to two symmetrical corners of the hexagonal screw.

Preferably, the outer wall of the clamping piece is provided with two symmetrically arranged pointing grooves, the pointing grooves are correspondingly arranged with the slots, and the pointing grooves are matched with the corners of the hexagonal screwing block and the inserting block.

Preferably, the maximum length of the blocking piece is greater than the maximum length of the slot.

Preferably, the upper surface of the hexagonal screw block is provided with an inner hexagonal hole.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the head of the bolt is the clamping piece, the clamping piece is not easy to bear force, the clamping piece is not easy to use a tool to dismantle after being installed, meanwhile, the inserting block is inserted into the slot on the clamping piece, the clamping piece can be driven to rotate by rotating the hexagonal screwing block through the tool, so that the screw rod can rotate, the whole use is convenient, the disassembly and assembly are convenient, and the anti-theft function is also realized.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the hexagonal screw block according to the present utility model;

FIG. 3 is a schematic view of the structure of the swivel and the swivel groove of the utility model.

In the figure: 1. a screw; 2. a clamping piece; 3. a slot; 4. inserting blocks; 5. hexagonal screwing blocks; 6. an inner hexagonal hole; 7. a rotary groove; 8. a swivel; 9. a baffle; 10. pointing towards the slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a fastener with anti-disassembly function comprises a bolt, wherein the bolt comprises a screw 1 and a clamping piece 2, the clamping piece 2 is fixedly connected to the upper end of the screw 1, the diameter of the clamping piece 2 is larger than that of the end face of the screw 1, two symmetrically arranged slots 3 are formed in the upper surface of the clamping piece 2, an insertion block 4 matched with the slots 3 is movably inserted in the slots, and a hexagonal screwing block 5 is fixedly connected to the upper end of the insertion block 4.

Referring to fig. 1 and 2, the structure of the fastener of the present utility model is similar to that of the prior fastener, such as a cylinder head bolt disclosed in the patent with publication number CN209164296U, and the main improvement of the present utility model is to prevent the fastening bolt from being disassembled and stolen. When the anti-theft device is used, the screw 1 is aligned with a fastening object, the insert block 4 is inserted into the slot 3, at the moment, the wrench is used for clamping the hexagonal screwing block 5, the hexagonal screwing block 5 is of national standard size, the wrench is rotated to enable the hexagonal screwing block 5 to rotate, the hexagonal screwing block 5 drives the clamping piece 2 to rotate through the insert block 4, the clamping piece 2 enables the screw 1 to rotate and screw into the fastening object to lock the object, when the clamping piece 2 and the screw 1 lock the object, the hexagonal screwing block 5 is pulled outwards, the hexagonal screwing block 5 drives the insert block 4 to be pulled out of the slot 3, the anti-theft device is convenient to integrally use and disassemble, and the clamping piece 2 is in a circular arrangement, has few stress points and is not easy to screw, so that the anti-theft function is achieved.

Referring to fig. 2 and 3, the slot 3 is an arc-shaped long slot, the slot 3 arranged in an arc-shaped long slot is not easy to be stressed when being inserted in a corresponding shape, anti-theft performance is improved, and meanwhile, the insert block 4 has a certain length, and is good in strength and not easy to be damaged when being twisted.

Referring to fig. 3, a rotary groove 7 is formed on the upper surface of the clamping piece 2, a rotary ring 8 is connected in the rotary groove 7, two baffle plates 9 which are symmetrically arranged are fixedly connected to the outer wall of the upper end of the rotary ring 8, the baffle plates 9 are matched with the slots 3, after the screw 1 and the clamping piece 2 lock a fastening object, the plug block 4 is pulled out of the slots 3, the rotary ring 8 is rotated, the rotary ring 8 slides in the rotary groove 7, the section of the rotary groove 7 is in an L-shaped arrangement, the rotary ring 8 is matched with the rotary groove 7, the rotary ring 8 can be limited by the rotary groove 7, the baffle plates 9 are driven to rotate by rotation of the rotary ring 8, so that the two baffle plates 9 can respectively shield the openings of the two slots 3, dust is prevented from entering the slots 3 to influence the insertion fit of the plug block 4, and the practicability is improved.

Referring to fig. 1 and 2, two insert blocks 4 are respectively arranged corresponding to two symmetrical corners of the hexagonal screwing block 5, and can be pointed according to two corners of the hexagonal screwing block 5 corresponding to the insert blocks 4, so that the insert blocks 4 are inserted into the slots 3, and the use is convenient.

Referring to fig. 1, two symmetrically arranged pointing grooves 10 are provided on the outer wall of the clip 2, the pointing grooves 10 are arranged corresponding to the slots 3, the corners of the pointing grooves 10 and the hexagonal screwing blocks 5 are matched with the inserting blocks 4, and the inserting blocks 4 can be pointed according to the two corners of the hexagonal screwing blocks 5 corresponding to the inserting blocks 4 and the pointing grooves 10, so that the inserting blocks 4 correspond to the slots 3 and are inserted into the inserting blocks 4, thereby facilitating the use of the inserting blocks 4.

Referring to fig. 3, the maximum length of the blocking piece 9 is greater than the maximum length of the slot 3, and the area of the blocking piece 9 is greater than the slot 3, so that the blocking piece 9 can completely block the slot 3.

Referring to fig. 2, an inner hexagonal hole 6 is formed in the upper surface of the hexagonal screwing block 5, the inner hexagonal hole 6 is of a national standard size, an inner hexagonal wrench can be inserted into the inner hexagonal hole 6 to rotate the hexagonal screwing block 5, flexibility of use is improved, and meanwhile, the corner of the hexagonal screwing block 5 is worn and cannot bear force, and a screwing mode is replaced.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (7)

1. The utility model provides a fastener with prevent tearing open function, includes bolt, its characterized in that, bolt includes screw rod (1) and clamping piece (2), clamping piece (2) fixed connection is in the upper end of screw rod (1), the diameter of clamping piece (2) is greater than the terminal surface diameter of screw rod (1), slot (3) that two symmetries set up have been seted up to the upper surface of clamping piece (2), slot (3) internal activity grafting has inserted block (4) with it matches, the upper end fixedly connected with hexagonal of inserted block (4) twists piece (5).

2. A fastening piece with a tamper-proof function according to claim 1, characterized in that the slot (3) is provided as an arc-shaped elongated slot.

3. The fastener with the anti-disassembly function according to claim 1, wherein a rotary groove (7) is formed in the upper surface of the clamping piece (2), a rotary ring (8) is connected in a rotary mode in the rotary groove (7), two baffle plates (9) which are symmetrically arranged are fixedly connected to the outer wall of the upper end of the rotary ring (8), and the baffle plates (9) are matched with the slot (3).

4. A fastener with tamper evident function according to claim 1, characterized in that the two inserts (4) are arranged in correspondence with two symmetrical corners of the hexagonal screw (5), respectively.

5. The fastener with the anti-disassembly function according to claim 1, wherein two symmetrically arranged pointing grooves (10) are formed in the outer wall of the clamping piece (2), the pointing grooves (10) are arranged corresponding to the inserting grooves (3), and the pointing grooves (10) are arranged in a matched mode with corners of the hexagonal screwing block (5) and the inserting blocks (4).

6. A fastening element with tamper-evident function according to claim 3, characterized in that the maximum length of the flap (9) is greater than the maximum length of the slot (3).

7. The fastener with the anti-disassembly function according to claim 1, characterized in that the upper surface of the hexagonal screw block (5) is provided with an inner hexagonal hole (6).