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Clamping tooth type anti-loosening fastening assembly

An anti-loosening, tooth-locking technology, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., can solve the problems of complex operation, complex structure, inconvenient promotion and implementation, etc., and achieve convenient operation and simple structure. , the effect of easy maintenance

Pending Publication Date: 2021-06-01
刘启超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the applicant applied for an invention patent with the application number 2019108155520 on August 30, 2019, a collar-type anti-loosening fastening assembly, which discloses a combination scheme of bolts, nuts, positioning locking pins and retaining springs The screw rod of the bolt is provided with an external thread, and the external thread is evenly distributed in a ring shape with several longitudinal screw locking grooves; the inner ring wall of the nut is provided with an internal thread, and the inner ring of the nut is provided with an internal thread. An annular ring groove is dug on the ring wall; a nut locking groove is vertically dug along the outer inner ring wall and the inner inner ring wall on the outer end surface of the nut, and the nut locking groove passes through the ring ring Groove and through part of the internal thread, the positioning locking pin includes pins, connecting rods and loading and unloading handles connected in sequence; the circlip is a ring-shaped elastic clip; its beneficial effect is through the screw assembly and the bolt and nut The mechanical connection of the bolt and the nut is clamped and fixed in the space formed by the nut locking groove and the screw locking groove through the positioning locking pin, and is clamped with a circlip to prevent it from falling off, so that it will never loosen; The structure is relatively complicated, and the operation is also relatively complicated, so it is inconvenient to promote and implement

Method used

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  • Clamping tooth type anti-loosening fastening assembly
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  • Clamping tooth type anti-loosening fastening assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] As shown in the figure, a snap-tooth anti-loosening fastening assembly is produced, including a screw 1, a nut 2 and a snap-tooth seat 3. The screw 1 is provided with an external thread, and the external thread is provided with a ring-shaped uniform Distributed tooth grooves 4; the inner ring wall of the nut 2 is provided with an inner thread matching the outer thread, and a card seat groove 5 is also dug on the inner ring wall where the inner thread is located, and the card seat groove 5. Excavated at the non-edge position of the inner ring wall; the bayonet seat 3 is composed of a bayonet 6 and a bayonet piece 7, and the bayonet 6 is fixedly installed or directly formed on the bayonet 7 to form the bayonet seat 3 , the size of the top of the locking tooth 6 matches the size of the tooth groove 4, so that the top of the locking tooth 6 can be inserted into the tooth groove 4; the locking tooth seat 3 is installed in the card seat groove 5, and the Card seat sheet 7 is ...

Embodiment 2

[0042] Such as Figure 12 As shown, on the basis of Embodiment 1, replace the structure of the latch 6 and the tooth groove 4. When the latch 6 is a front and rear vertical latch, 11, that is, the front and rear sides of the top position of the latch 6 When the side surfaces are all perpendicular to the top end face, the tooth groove 4 is an inclined groove 12 on the rear wall, that is, the groove wall of the tooth groove 4 away from the side where the nut is tightened is an inclined groove wall inclined outward to the bottom of the groove Or the curved side wall, the side wall close to the nut is tightened is the vertical groove wall perpendicular to the bottom of the groove.

[0043] In this way, when the nut 2 is screwed into the screw rod 1, due to the effect of the elastic material 8 and the inclined side wall of the rear wall in the inclined tooth groove 12 of the rear wall, the bayonet seat 3 will snap to the rear wall after being squeezed. The seat groove 5 moves insi...

Embodiment 3

[0045] As shown in the figure, on the basis of embodiment 1 or embodiment 2, a loading and unloading hole 13 is drilled on the end face of the nut 2, and a loading and unloading pin 14 is provided; the loading and unloading hole 13 runs through one end of the nut 2 and The groove wall close to the end face on the card seat groove 5 can be dug along the internal thread surface of the inner ring wall of the nut 2 to become a loading and unloading hole with no side wall at the inner side, or it can be directly dug on the end face without destroying the internal thread. It is a complete loading and unloading hole on the side wall; the loading and unloading pin 14 is a short bar, and the cut-in end of the loading and unloading pin 14 is a side inclined on both sides, which is easy to insert; Between the external thread of the screw rod 1, the locking teeth 6 and the tooth grooves 4 are out of contact, so that the nut 2 can be screwed out smoothly in the reverse direction, and the nu...

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Abstract

The invention discloses a clamping tooth type anti-loosening fastening assembly, and belongs to the technical field of fasteners. The clamping tooth type anti-loosening fastening assembly comprises a screw rod, nuts and clamping tooth seats, and tooth grooves are formed in the screw rod. Clamping seat grooves are formed in the nuts, the clamping tooth seats are installed in the clamping seat grooves, the clamping tooth seats are formed by directly generating clamping teeth on clamping seat pieces, and the clamping seat pieces are connected with the bottoms of the clamping seat grooves through elastic materials. Assembling and disassembling holes are drilled in the end faces of the nuts, and assembling and disassembling pins are arranged. During use, the assembling and disassembling pins are inserted between the clamping seat pieces and the screw rod, so that the clamping teeth are separated from the tooth grooves, the nuts can be smoothly screwed out in the reverse direction, the nuts can also be screwed in more smoothly in the forward direction, and after the nuts are screwed in, the assembling and disassembling pins are taken out, the clamping teeth are sleeved in the tooth grooves, and the nuts cannot be screwed out. According to the scheme, the structure is simple, operation is convenient, and the effective anti-loosening effect can be achieved.

Description

technical field [0001] The invention belongs to the technical field of fasteners, in particular to a bayonet type anti-loosening fastening assembly for preventing loosening due to vibration. Background technique [0002] Commonly used fasteners include bolt and nut assemblies, stud nut assemblies, screws, etc., wherein the nut is a polygonal cylinder with a central threaded hole, and an internal thread is provided on the inner ring wall of the central threaded hole, which is connected to the thread on the stud. The external thread is used for fastening and connecting two or more fasteners with through holes. [0003] The fastening of nuts and bolts is generally relatively stable. However, if the fastened parts are in vibration for a long time, there will be a difference in vibration frequency between the connecting parts, which will cause a certain displacement of each connecting part in the connecting structure, resulting in loosening or even falling off of the connection ...

Claims

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Application Information

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IPC IPC(8): F16B39/28F16B39/22F16B37/00F16B35/04F16B35/00
CPCF16B39/28F16B39/22F16B37/00F16B35/041F16B35/00
Inventor 刘启超
Owner 刘启超