Fastener with fastening structure

Abstract

The utility model discloses a fastener with a fastening structure, which relates to the technical field of fasteners and comprises a mounting surface, a stud is fixedly connected onto the mounting surface, a nut is in threaded connection with the outer side of the stud, cavities are symmetrically arranged in the nut, first reset springs are symmetrically and fixedly connected onto one side of the interior of each cavity, and the first reset springs are arranged in the cavities. The other end of the first reset spring is fixedly connected with a moving block, the moving block is in sliding connection with the interior of the cavity, the other side of the moving block is fixedly connected with a limiting block, the two sides of the moving block are fixedly connected with sliding blocks, the other end of each sliding block is fixedly connected with a pushing block, limiting grooves are symmetrically formed in the outer side wall of the stud, and the limiting blocks are connected with the limiting grooves in an inserted mode. By adopting the structure, the position of the nut on the stud can be firmly fixed, the nut is prevented from rotating under vibration, impact or small displacement in long-term operation, the stability and the reliability of connection are ensured, and the safety risk caused by connection failure can be obviously reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fastener, especially relates to a fastener with fastening structure. BACKGROUND

[0002] Fasteners are mechanical components widely used in mechanical, construction, automotive, aerospace and other fields, used for connecting, fixing or clamping parts. They are usually composed of head, screw rod or nut, etc. with specific external threads or internal threads, and the nut has an internal threaded hole, which is used in cooperation with bolts, studs or machine screws to fasten two parts. The manufacturing precision grade of fasteners is divided into three levels: A, B and C, which are used in pairs with bolts of the same level to ensure the reliability and stability of the connection. In the mechanical and construction industries, the selection and use of fasteners play a crucial role in the operation and performance of the entire system.

[0003] The utility model discloses a nut, including nut body and the threaded hole formed in the nut body, the nut body is wrapped with the protection shell, the protection shell is wrapped the circumference of the nut body with one end face and extends to near the other end face of the nut body, the protection shell is equipped with the through hole at the position of the threaded hole, the outer ring of the through hole is equipped with the first sealing ring that cooperates with the stud and constitutes the seal. The nut has the following advantages and effects: the service life of the utility model is longer and the later removal is more convenient.

[0004] Although the above-mentioned utility model has longer service life and is more convenient to remove later, the connection between the nut and the stud may gradually loosen due to vibration, impact or slight displacement during long-term operation, and the nut may accidentally fall off due to external factors, resulting in connection failure. Nut falling or connection loosening may cause equipment failure or accident, posing potential safety threat to personnel and equipment. UTILITY MODEL CONTENTS

[0005] In view of the problems mentioned in the background art, the utility model aims to provide a fastener with a fastening structure to solve the problem that the connection between the nut and the stud may gradually loosen due to vibration, impact or slight displacement during long-term operation, and the nut may accidentally fall off due to external factors, resulting in connection failure. Nut falling or connection loosening may cause equipment failure or accident, posing potential safety threat to personnel and equipment.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] The fastener with the fastening structure comprises a mounting surface, a stud fixedly connected to the mounting surface, and a nut threadedly connected to the outer side of the stud, wherein a limiting assembly is symmetrically mounted in the interior of the nut;

[0008] The limiting assembly comprises a cavity, a first reset spring, a moving block, a limiting block, a sliding block and a push block, the interior of the nut is symmetrically provided with the cavity, one side of the interior of the cavity is fixedly connected with the first reset spring, the other end of the first reset spring is fixedly connected with the moving block, the moving block is in sliding connection with the interior of the cavity, the other side of the moving block is fixedly connected with the limiting block, the other end of the limiting block extends to the interior of the nut, the two sides of the moving block are fixedly connected with the sliding block, the other end of the sliding block extends out of the nut and is fixedly connected with the push block, the interior of the push block is symmetrically provided with the fixing assembly, the top and the bottom of the nut are symmetrically provided with the sliding slot, the sliding slot is in communication with the interior of the cavity, the sliding slot is in sliding connection with the sliding block, the outer side wall of the stud is symmetrically provided with the limiting slot through an annular circumferential array, the limiting block is in insertion with the limiting slot, the nut can be firmly fixed on the stud, the nut is prevented from rotating due to the slight displacement in vibration, impact or long-term operation, the stability and reliability of the connection are ensured, and the safety risk caused by the connection failure can be significantly reduced.

[0009] As a preferred technical solution, the fixing assembly comprises a containing cavity, a second reset spring, a moving plate and a locking block, the interior of the push block is symmetrically provided with the containing cavity, one side of the interior of the containing cavity is fixedly connected with the second reset spring, the other end of the second reset spring is fixedly connected with the moving plate, the moving plate is in sliding connection with the interior of the containing cavity, the other side of the moving plate is fixedly connected with the locking block, the other end of the locking block extends out of the side end of the push block and is provided as an inclined surface, the top and the bottom of the nut are symmetrically fixedly connected with the assembly block, one side of the assembly block is provided with the insertion slot, the push block is in insertion with the insertion slot, the interior of the insertion slot is provided with the locking slot on both sides, the locking slot is in clamping connection with the locking block, the interior of the locking slot is in sliding connection with the unlocking block, the two sides of the unlocking block are fixedly connected with the positioning block, the interior of the locking slot is provided with the positioning slot on both sides, the positioning slot is in sliding connection with the positioning block, the operator can independently operate without relying on other tools or equipment, the installation steps are simplified, the installation difficulty is reduced, and the operation path of the wrench is not protruded, so that the wrench can smoothly contact and rotate the nut.

[0010] In summary, the utility model mainly has the following beneficial effects:

[0011] First, in the utility model, the nut is screwed with the stud through the wrench, when the nut rotates to the specified position, the first reset spring is reset by pressing the unlocking block, the moving block drives the limiting block, the slider and the push block to rebound, the limiting block pops out and inserts with the limiting groove outside the stud, the limiting of the nut is completed, the nut can be firmly fixed on the position of the stud, the rotation of the nut under the small displacement in vibration, impact or long-term operation is prevented, the stability and reliability of the connection are ensured, and the safety risk caused by the connection failure can be significantly reduced;

[0012] Second, in the utility model, the push block is pushed, the moving block drives the limiting block to move, the limiting block retracts into the cavity, at the same time, the push block inserts into the slot of the assembly block, at the same time, the extrusion force presses the inclined surface of the locking block, the locking block retracts into the accommodating cavity, when the locking block moves to the locking groove, the locking block is clamped with the locking groove, the operator can operate independently, without relying on other tools or equipment, the installation steps are simplified, and the installation difficulty is reduced, and the push block will not protrude to the operation path of the wrench, allowing the wrench to smoothly contact and rotate the nut. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is the three-dimensional structure schematic diagram of the utility model Figure 1 A part enlarged view of it;

[0015] Figure 3 It is the sectional three-dimensional structure schematic diagram of the fixing assembly of the utility model;

[0016] Figure 4 It is the sectional three-dimensional structure schematic diagram of the limiting assembly of the utility model.

[0017] Fig. 1, mounting surface; 2, stud; 3, limiting groove; 4, nut; 5, limiting assembly; 51, cavity; 52, first reset spring; 53, moving block; 54, limiting block; 55, slider; 56, push block; 6, sliding slot; 7, assembly block; 8, slot; 9, locking groove; 10, fixing assembly; 101, accommodating cavity; 102, second reset spring; 103, moving plate; 104, locking block; 11, unlocking block; 12, positioning block; 13, positioning groove. DETAILED DESCRIPTION

[0018] EMBODIMENT

[0019] Reference Figures 1 to 4 The utility model discloses a fastener with fastening structure, including mounting surface 1, mounting surface 1 is fixedly connected with stud 2, the outside screw thread connection of stud 2 has nut 4, and nut 4 is symmetrically installed with limiting assembly 5 in the inside.

[0020] The limiting assembly 5 comprises cavities 51, first return springs 52, moving blocks 53, limiting blocks 54, sliding blocks 55 and push blocks 56, the cavities 51 are symmetrically arranged in the nut 4, the first return springs 52 are symmetrically fixed at one side in the cavities 51, the moving blocks 53 are fixed at the other ends of the first return springs 52, the moving blocks 53 are slidingly connected with the cavities 51, the limiting blocks 54 are fixed at the other side of the moving blocks 53, the limiting blocks 54 extend into the nut 4, the sliding blocks 55 are fixed at both sides of the moving blocks 53, the push blocks 56 are fixed at the other ends of the sliding blocks 55 extending out of the nut 4, the fixing assemblies 10 are symmetrically arranged in the push blocks 56, the sliding grooves 6 are symmetrically arranged at the top and bottom of the nut 4 and are communicated with the cavities 51, the sliding grooves 6 are slidingly connected with the sliding blocks 55, the limiting grooves 3 are symmetrically arranged on the outer wall of the stud 2 in an annular circumferential array, the limiting blocks 54 are inserted into the limiting grooves 3, the nut 4 is threadedly connected with the stud 2 by a wrench, when the nut 4 is rotated to a specified position, the unlocking blocks 11 are pressed, the first return springs 52 are reset, the moving blocks 53 drive the limiting blocks 54, the sliding blocks 55 and the push blocks 56 to rebound, the limiting blocks 54 are popped out to be inserted into the limiting grooves 3 on the outer side of the stud 2, and the limiting of the nut 4 is completed.

[0021] Reference Figure 3 The fixing assemblies 10 comprise accommodating cavities 101, second return springs 102, moving plates 103 and locking blocks 104, the accommodating cavities 101 are symmetrically arranged in the push blocks 56, the second return springs 102 are fixed at one side in the accommodating cavities 101, the moving plates 103 are fixed at the other ends of the second return springs 102, the moving plates 103 are slidingly connected with the accommodating cavities 101, the locking blocks 104 are fixed at the other side of the moving plates 103, the locking blocks 104 extend out of the side end of the push blocks 56 and are inclined, the assembly blocks 7 are symmetrically fixed at the top and bottom of the nut 4, the insertion grooves 8 are arranged at one side of the assembly blocks 7, the push blocks 56 are inserted into the insertion grooves 8, the locking grooves 9 are arranged at both sides in the insertion grooves 8 and are clamped with the locking blocks 104, the push blocks 56 are pushed to move the limiting blocks 54 driven by the moving blocks 53, the limiting blocks 54 are retracted into the cavities 51, at the same time, the push blocks 56 are inserted into the insertion grooves 8 of the assembly blocks 7, at the same time, the pressing force is applied to the inclined surface of the locking blocks 104, the locking blocks 104 are retracted into the accommodating cavities 101, when the locking blocks 104 move to the locking grooves 9, the second return springs 102 are reset, the moving plates 103 rebound to drive the locking blocks 104 to pop out, and the locking blocks 104 are clamped with the locking grooves 9.

[0022] Reference Figure 3The unlocking block 11 is slidably connected in the locking groove 9, both sides of the unlocking block 11 are fixedly connected with the positioning blocks 12, both sides of the locking groove 9 are provided with the positioning grooves 13, the positioning grooves 13 are slidably connected with the positioning blocks 12, the unlocking block 11 is pressed, the unlocking block 11 slides in the locking groove 9, meanwhile, the unlocking block 11 drives the positioning blocks 12 to slide in the positioning grooves 13, the unlocking block 11 pushes the locking block 104, the locking block 104 drives the moving plate 103 to press the second reset spring 102, the second reset spring 102 is compressed, the locking block 104 is retracted into the accommodating cavity 101, and the locking block 104 and the locking groove 9 are disconnected.

[0023] Principle and advantages: first, the push block 56 is pushed, the moving block 53 drives the limiting block 54 to move, the limiting block 54 is retracted into the cavity 51, meanwhile, the push block 56 is inserted into the slot 8 of the assembly block 7, and the extrusion force is applied to the inclined surface of the locking block 104, the locking block 104 is retracted into the accommodating cavity 101, when the locking block 104 moves to the locking groove 9, the second reset spring 102 is reset, the moving plate 103 rebounds and drives the locking block 104 to pop out, the locking block 104 is connected with the locking groove 9, then the nut 4 is screwed with the stud 2 through a wrench, when the nut 4 is rotated to a specified position, the unlocking block 11 is pressed, the first reset spring 52 is reset, the moving block 53 drives the limiting block 54, the sliding block 55 and the push block 56 to rebound, the limiting block 54 is popped out and connected with the limiting groove 3 outside the stud 2, and the nut 4 is limited;

[0024] The nut 4 can be fixed on the stud 2 in a firm manner, rotation of the nut 4 under the influence of vibration, impact or slight displacement in long-term operation is prevented, stability and reliability of connection are ensured, and safety risks caused by connection failure can be obviously reduced.

Claims

1. A fastener having a fastening structure, comprising a mounting surface (1), characterized in that: The mounting surface (1) is fixedly connected with a stud (2), the outer side of the stud (2) is threadedly connected with a nut (4), and the inside of the nut (4) is symmetrically provided with a limiting assembly (5); The limiting assembly (5) comprises cavities (51), first return springs (52), moving blocks (53), limiting blocks (54), sliding blocks (55) and push blocks (56), the inside of the nut (4) is symmetrically provided with cavities (51), one side of the inside of the cavity (51) is fixedly connected with a first return spring (52), the other end of the first return spring (52) is fixedly connected with a moving block (53), the moving block (53) is in sliding connection with the inside of the cavity (51), the other side of the moving block (53) is fixedly connected with a limiting block (54), the other end of the limiting block (54) extends to the inside of the nut (4), the two sides of the moving block (53) are fixedly connected with sliding blocks (55), the other end of the sliding block (55) extends out of the nut (4) and is fixedly connected with a push block (56), and the inside of the push block (56) is symmetrically provided with a fixing assembly (10).

2. The fastener with a fastening structure according to claim 1, characterized by: The top and bottom of the nut (4) are symmetrically provided with sliding grooves (6), the sliding grooves (6) are in communication with the inside of the cavity (51), and the sliding grooves (6) are in sliding connection with the sliding blocks (55).

3. The fastener with a fastening structure according to claim 1, characterized by: The outer side wall of the stud (2) is symmetrically provided with limiting grooves (3) through an annular circumferential array, and the limiting block (54) is inserted into the limiting groove (3).

4. The fastener with a fastening structure according to claim 1, characterized by: The fixing assembly (10) comprises accommodating cavities (101), second return springs (102), moving plates (103) and locking blocks (104), the inside of the push block (56) is symmetrically provided with an accommodating cavity (101), one side of the inside of the accommodating cavity (101) is fixedly connected with a second return spring (102), the other end of the second return spring (102) is fixedly connected with a moving plate (103), the moving plate (103) is in sliding connection with the inside of the accommodating cavity (101), the other side of the moving plate (103) is fixedly connected with a locking block (104), and the other end of the locking block (104) extends out of the side end of the push block (56) and is provided as an inclined surface.

5. The fastener with a fastening structure according to claim 1, characterized by: The top and bottom of the nut (4) are symmetrically fixedly connected with assembly blocks (7), one side of the assembly block (7) is provided with a slot (8), and the push block (56) is inserted into the slot (8).

6. The fastener with a fastening structure according to claim 5, wherein: The inside of the slot (8) is provided with locking grooves (9) on both sides, and the locking grooves (9) are in clamping connection with the locking blocks (104).

7. The fastener with a fastening structure according to claim 6, wherein: The inside of the locking groove (9) is in sliding connection with an unlocking block (11), the two sides of the unlocking block (11) are fixedly connected with positioning blocks (12), the inside of the locking groove (9) is provided with positioning grooves (13) on both sides, and the positioning grooves (13) are in sliding connection with the positioning blocks (12).

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