Anti-loose self-locking fastener

Abstract

The utility model discloses an anti-loosening self-locking type fastener, and belongs to the technical field of fasteners, the anti-loosening self-locking type fastener comprises a basic module and a fastener module, the basic module comprises a connecting block, a threaded groove is formed in the top of the connecting block, and the fastener module is arranged on the inner side of the threaded groove; the fastener module comprises a threaded bolt assembly arranged on the inner side of the threaded groove, a locking assembly is arranged at the bottom of the inner side of the threaded bolt assembly, and a screw assembly is arranged between the threaded bolt assembly and the locking assembly. According to the fastening piece, the threaded rod assembly can be locked, the fastening piece can be suitable for a structure which does not need to be opened for a long time or does not need to be opened permanently, and the threaded bolt assembly can be driven to be in threaded connection with the interior of the threaded groove when needed through the arrangement of the threaded rod assembly.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fasteners, in particular to a self-locking fastener. BACKGROUND

[0002] Fasteners are mechanical parts used for fastening connection and are widely used. They have various types, different performances and uses, and are highly standardized, serialized and universalized. Therefore, some people call a type of fasteners with national standards standard fasteners or standard parts.

[0003] According to the search, the Chinese patent with the publication number CN215567135U discloses a reverse-rotation self-locking anti-loose threaded fastener. The threaded fastener comprises a first mounting block, the bottom of the first mounting block is detachably mounted with a second mounting block, the first mounting block and the second mounting block are embeddedly connected with a first rod body, the bottom outer wall of the first rod body is integrally formed with a first external thread, and the top of the first rod body is integrally formed with a nut body. The first external thread arranged at the bottom of the first rod body can limit the connection of the first mounting block and the second mounting block. A through hole is formed in the first rod body to mount a second rod body. The second external thread arranged at the bottom of the second rod body can be threadedly connected with the inside of the second mounting block, so as to assist in enhancing the connection strength of the first rod body. In addition, the screw directions of the first external thread and the second external thread are opposite. If the nut body has a tendency to rotate in the loosening direction, the nut body will rotate in the tightening direction, thereby achieving the effect of limiting and self-locking.

[0004] According to the related technology in the above, the applicant believes that the self-locking is realized by the first rod body and the second rod body, but the self-locking is not locked. The structure can still be opened by sequentially operating, and is not suitable for long-term or permanent use without opening. Therefore, the application provides a self-locking fastener. INVENTION CONTENTS

[0005] In order to solve the above problems, the application provides a self-locking fastener, which adopts the following technical scheme:

[0006] The self-locking fastener comprises a base module and a fastener module. The base module comprises a connecting block. A threaded groove is formed in the top of the connecting block. The fastener module is arranged on the inner side of the threaded groove. The fastener module comprises a threaded bolt assembly arranged on the inner side of the threaded groove. A locking assembly is arranged at the bottom of the inner side of the threaded bolt assembly. A screw rod assembly is arranged between the threaded bolt assembly and the locking assembly.

[0007] By adopting the above technical scheme, the screw rod assembly can be locked, so that the fastener can be used for long-term or permanent use without opening.

[0008] Further, the threaded bolt assembly comprises a threaded bolt body threaded in the threaded groove, and a circular groove is formed in the top of the threaded bolt body.

[0009] By adopting the above technical scheme, the locking assembly can be conveniently installed.

[0010] Further, the locking assembly comprises two fixed blocks fixedly connected to the bottom of the circular groove, and a rectangular groove is formed in the opposite side of each fixed block.

[0011] By adopting the above technical scheme, the trapezoidal block can be conveniently installed.

[0012] Further, the locking assembly further comprises two trapezoidal blocks rotatably connected to the inside of the two rectangular grooves, and the opposite end of each trapezoidal block extends to the inside of the circular groove and abuts.

[0013] By adopting the above technical scheme, the rectangular frame can be rotated.

[0014] Further, the locking assembly further comprises two fixed plates fixedly connected to the bottom of the opposite side of each fixed block, a spring is fixedly connected to the top of each fixed plate, and the bottom of each trapezoidal block is fixedly connected to the top of each spring.

[0015] By adopting the above technical scheme, the trapezoidal block can have the reset ability.

[0016] Further, the threaded rod assembly comprises a rod body movably inserted into the circular groove, and a screw block is fixedly connected to the top of the rod body extending to the outside of the circular groove.

[0017] By adopting the above technical scheme, the rod body can be installed.

[0018] Further, the threaded rod assembly comprises two rectangular strips fixedly connected to the inner wall of the circular groove, and a sliding groove is formed in the opposite side of each rectangular strip, and two sliding blocks are fixedly connected to the surface of the rod body, and each sliding block is matched with each sliding groove.

[0019] By adopting the above technical scheme, the sliding block can be slidably connected to the inside of the sliding groove.

[0020] Further, the threaded rod assembly comprises a rectangular frame fixedly connected to the bottom of the rod body, and the rectangular frame is sleeved outside the two trapezoidal blocks.

[0021] By adopting the above technical scheme, the rectangular frame can be locked.

[0022] In summary, the present application has the following beneficial technical effects:

[0023] (1) Through the setting of the threaded bolt assembly, the locking assembly is convenient to install, and through the setting of the locking assembly, the screw rod assembly can be locked, so that the fastener can be suitable for long-term or permanent opening-free structures;

[0024] (2) Through the setting of the rectangular groove, the trapezoidal block is convenient to install, through the setting of the trapezoidal block, the rectangular frame is locked, and through the setting of the spring, the trapezoidal block can have the reset ability;

[0025] (3) Through the setting of the rectangular strip, the sliding groove is convenient to set, through the setting of the sliding block, it can be connected to the inner side of the sliding groove, and through the setting of the rectangular frame, it can be set outside the trapezoidal block, so that the trapezoidal block can lock the rectangular frame. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0027] Figure 2 It is an exploded structure schematic diagram of the fastener module of the present application;

[0028] Figure 3 It is an exploded structure schematic diagram of the fastener module of the present application;

[0029] Figure 4 It is a cross-sectional structure schematic diagram of the threaded bolt of the present application;

[0030] Figure 5 It is an enlarged structure schematic diagram of A of the present application. Figure 3

[0031] Explanation of reference numerals in the drawing:

[0032] 100, base module; 110, connecting block; 120, threaded groove;

[0033] 200, fastener module; 210, threaded bolt assembly; 211, threaded bolt body; 212, circular groove; 220, locking assembly; 221, fixed block; 222, rectangular groove; 223, trapezoidal block; 224, fixed piece; 225, spring; 230, screw rod assembly; 231, rod body; 232, screw block; 233, rectangular strip; 234, sliding groove; 235, sliding block; 236, rectangular frame. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present application are within the scope of protection of the present application.​

[0035] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0037] The following will be described in detail in combination with the accompanying drawings Figures 1-5 The present application will be further described in detail.

[0038] Please refer to Figures 1-5 A self-locking fastener, comprising a base module 100 and a fastener module 200, the base module 100 comprises a connecting block 110, a threaded groove 120 is opened at the top of the connecting block 110, the fastener module 200 is arranged inside the threaded groove 120, the fastener module 200 comprises a threaded bolt assembly 210 arranged inside the threaded groove 120, a locking assembly 220 is arranged at the bottom of the inside of the threaded bolt assembly 210, and a screw rod assembly 230 is arranged between the threaded bolt assembly 210 and the locking assembly 220.

[0039] Through the arrangement of the threaded bolt assembly 210, the locking assembly 220 is convenient to install, through the arrangement of the locking assembly 220, the screw rod assembly 230 can be locked, so that the present fastener can be used for structures that do not need to be opened for a long time or permanently, through the arrangement of the screw rod assembly 230, the threaded bolt assembly 210 can be screwed into the inside of the threaded groove 120 when needed.

[0040] The threaded bolt assembly 210 comprises a threaded bolt body 211 threaded in the inner side of the threaded groove 120, a circular groove 212 is arranged at the top of the threaded bolt body 211, the locking assembly 220 comprises two fixed blocks 221 fixedly connected at the bottom of the inner side of the circular groove 212, the opposite sides of the two fixed blocks 221 are both provided with a rectangular groove 222, the locking assembly 220 further comprises two trapezoidal blocks 223 rotatably connected in the inner side of the two rectangular grooves 222, and the opposite ends of the two trapezoidal blocks 223 both extend to the inner side of the circular groove 212 and abut, the locking assembly 220 further comprises two fixed plates 224 fixedly connected at the bottom of the opposite sides of the two fixed blocks 221, the top of the two fixed plates 224 is both fixedly connected with a spring 225, and the top of the two springs 225 is respectively fixedly connected with the bottom of the two trapezoidal blocks 223.

[0041] When the rectangular frame 236 is pressed to press the two trapezoidal blocks 223, the two trapezoidal blocks 223 will drive the two springs 225 to contract, so that a gap will appear between the two trapezoidal blocks 223, so that the rectangular frame 236 can move to the lower side of the two trapezoidal blocks 223 through the gap, at this time the spring 225 will be stretched to drive the two trapezoidal blocks 223 to reset, so that the two trapezoidal blocks 223 can lock the rectangular frame 236, so that the fastener can be used for long-term opening or permanent opening structure.

[0042] The screw rod assembly 230 comprises a rod body 231 movably inserted in the inner side of the circular groove 212, the top of the rod body 231 extends to the outside of the circular groove 212 and is fixedly connected with a screw block 232, the screw rod assembly 230 comprises two rectangular strips 233 fixedly connected with the inner wall of the circular groove 212, the opposite sides of the two rectangular strips 233 are both provided with a sliding groove 234, the surface of the rod body 231 is fixedly connected with two sliding blocks 235, the two sliding blocks 235 are respectively matched with the two sliding grooves 234, the screw rod assembly 230 comprises a rectangular frame 236 fixedly connected with the bottom of the rod body 231, and the rectangular frame 236 is sleeved outside the two trapezoidal blocks 223.

[0043] By inserting the rod body 231 into the inner side of the circular groove 212, and then slidingly connecting the sliding block 235 to the inner side of the sliding groove 234, at this time the screw block 232 is rotated, the screw block 232 drives the rod body 231 to rotate, and the rod body 231 drives the threaded bolt body 211 to rotate through the rectangular strip 233, so as to facilitate the threaded connection of the threaded bolt body 211 to the inner side of the threaded groove 120.

[0044] The implementation principle of the embodiment of the application is: when the fastener needs to be used, first, the threaded bolt body 211 is placed on the top of the threaded groove 120, then the screw block 232 is taken to insert the rod body 231 into the inner side of the circular groove 212, so that the sliding block 235 can be slidably connected to the inner side of the sliding groove 234, at this time, rotating the screw block 232 can drive the threaded bolt body 211 to rotate, so that the threaded bolt body 211 can be threadedly connected to the inner side of the threaded groove 120, when the threaded bolt body 211 is completely threadedly connected to the inner side of the threaded groove 120, the screw block 232 can be taken upward to drive the sliding block 235 to withdraw from the sliding groove 234, then the screw block 232 is rotated, the screw block 232 drives the two sliding blocks 235 to rotate through the rod body 231, at this time, the screw block 232 is pressed downward again to drive the sliding block 235 to move downward to disengage the sliding groove 234, so that the rod body 231 can drive the rectangular frame 236 to press downward the two trapezoidal blocks 223, so that the trapezoidal blocks 223 can be rotated and drive the springs 225 to contract, so that gaps can appear between the two trapezoidal blocks 223, the rectangular frame 236 is lowered, so that the rectangular frame 236 can be sleeved outside the two trapezoidal blocks 223, when the rectangular frame 236 is lost, the two springs 225 will be stretched to drive the two trapezoidal blocks 223 to reset, so that the rectangular frame 236 can be locked, and the rod body 231 can be locked, and the trapezoidal blocks 223 do not have the space to rotate upward, so that the rod body 231 can be locked, so that the fastener can be used for long-term or permanent structures that do not need to be opened.

[0045] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A self-locking fastener comprising a base module (100) and a fastener module (200), characterized in that: The base module (100) comprises a connecting block (110), a threaded groove (120) is formed in the top of the connecting block (110), and the fastener module (200) is arranged on the inner side of the threaded groove (120); The fastener module (200) comprises a threaded bolt assembly (210) arranged on the inner side of the threaded groove (120), a locking assembly (220) is arranged on the bottom of the inner side of the threaded bolt assembly (210), and a screw rod assembly (230) is arranged between the threaded bolt assembly (210) and the locking assembly (220).

2. A self-locking fastener according to claim 1 wherein: The threaded bolt assembly (210) comprises a threaded bolt body (211) threadedly connected to the inner side of the threaded groove (120), and a circular groove (212) is formed in the top of the threaded bolt body (211).

3. A self-locking fastener according to claim 2 wherein: The locking assembly (220) comprises two fixed blocks (221) fixedly connected to the bottom of the inner side of the circular groove (212), and a rectangular groove (222) is formed in the opposite side of each of the two fixed blocks (221).

4. A self-locking fastener according to claim 3 wherein: The locking assembly (220) further comprises two trapezoidal blocks (223) rotatably connected to the inner side of the two rectangular grooves (222), respectively, and the opposite ends of the two trapezoidal blocks (223) extend to the inner side of the circular groove (212) and abut against each other.

5. A self-locking fastener according to claim 4 wherein: The locking assembly (220) further comprises two fixed flanges (224) fixedly connected to the bottom of the opposite side of each of the two fixed blocks (221), a spring (225) is fixedly connected to the top of each of the two fixed flanges (224), and the bottom of each of the two springs (225) is fixedly connected to the top of each of the two trapezoidal blocks (223).

6. A self-locking fastener according to claim 5 wherein: The screw rod assembly (230) comprises a rod body (231) movably inserted into the inner side of the circular groove (212), and a screw block (232) is fixedly connected to the top of the rod body (231) and extends to the outside of the circular groove (212).

7. A self-locking fastener according to claim 6 wherein: The screw rod assembly (230) comprises two rectangular strips (233) fixedly connected to the inner wall of the circular groove (212), a sliding groove (234) is formed in the opposite side of each of the two rectangular strips (233), and two sliding blocks (235) are fixedly connected to the surface of the rod body (231) and respectively matched with the two sliding grooves (234).

8. A self-locking fastener according to claim 7 wherein: The screw rod assembly (230) comprises a rectangular frame (236) fixedly connected to the bottom of the rod body (231), and the rectangular frame (236) is sleeved on the outside of the two trapezoidal blocks (223).

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