Anti-skidding and anti-loosening self-tapping screw assembly with elastic piece

Abstract

The self-tapping screw assembly comprises a screw body, the screw body is composed of a screw rod part and a nut part, the screw rod part is composed of a connecting rod and a threaded rod, the connecting rod is located above the threaded rod, external threads are arranged on the threaded rod, and the nut part is located above the connecting rod. The top of the connecting rod is fixedly connected with the bottom of the screw cap part, the screw rod part and the screw cap part are integrally formed, an anti-loosening structure is arranged between the screw rod part and the screw cap part, the anti-loosening structure comprises a clamping ring and a fastening bolt, a clamping groove is formed in the bottom of the screw cap part, and the clamping groove surrounds the periphery of the connecting rod. According to the anti-loosening self-tapping screw, the anti-loosening structure is arranged between the screw rod part and the nut part, due to the arrangement of the strip-shaped clamping teeth, resistance is small when the self-tapping screw is screwed, friction force is large when the self-tapping screw moves in the reverse direction, and therefore the anti-skidding and anti-loosening purposes are achieved, and meanwhile the self-tapping screw can be repeatedly used and is convenient to disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to self -tapping screw subassembly technical field, concretely is a self -tapping screw subassembly with elastic piece antiskid and anti -loose. BACKGROUND

[0002] Self -tapping screw is a screw with drill bit, constructs through special electric tool, drills a hole, taps, fixes, locks and completes once. Self -tapping screw is mainly used for the connection and fixation of some thin plate parts, such as the connection of color steel plate and color steel plate, the connection of color steel plate and purltr, wall beam etc.

[0003] At present, the existing self -tapping screw is in the process of using, and the self -tapping screw is screwed into the material inside, and the contact pressure between the self -tapping screw and the material changes due to the vibration of the outside, and the continuous vibration can make the screw move slightly in the material, which causes the thread to gradually wear or deform, thereby affecting the fastening effect of the screw, and there are some self -tapping screws on the market to prevent loosening, and since the self -tapping screw wear is usually only used once, therefore, the present application provides a self -tapping screw assembly with elastic piece antiskid and anti -loose to meet the needs. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a self -tapping screw subassembly with elastic piece antiskid and anti -loose, including screw main part, the screw main part is composed of screw rod part and nut part, the screw rod part is composed of connecting rod and threaded rod, the connecting rod is located above the threaded rod, the threaded rod is provided with external thread, the top of connecting rod is fixedly connected with the bottom of nut part, and the screw rod part and nut part are integrally formed, the anti -loose structure is arranged between the screw rod part and nut part, the anti -loose structure includes clamping ring and fastening bolt, the bottom of nut part is provided with clamping groove, the clamping groove surrounds the periphery of connecting rod, the clamping ring is installed in the clamping groove, and the fastening bolt is installed in the inside of nut part.

[0006] Preferably, the clamping ring is a circular ring structure, and the clamping ring is sleeved on the connecting rod.

[0007] Preferably, the outer wall of the clamping ring is provided with positioning blocks, the positioning blocks are provided in several groups, and the positioning blocks are uniformly distributed outside the clamping ring.

[0008] Preferably, a positioning groove is formed in the side wall of the clamping groove, and the positioning groove and the positioning block on the clamping ring one-to-one correspond.

[0009] Preferably, the lower surface of the clamping ring is provided with strip-shaped clamping teeth, and the strip-shaped clamping teeth are uniformly distributed along the center of the clamping ring.

[0010] Preferably, the fastening bolt is located in the nut part, a bolt hole is arranged inside the nut part, and a pressing spring and a pressing block are mounted inside the bolt hole.

[0011] Preferably, the bottom of the pressing block is in contact with the clamping ring, the pressing spring is located above the pressing block, the fastening bolt is located above the pressing spring, the fastening bolt is in threaded connection with the bolt hole, and the top of the fastening bolt is embedded in the nut part.

[0012] Preferably, a screw hole is arranged on the nut part, the screw hole is a hexagonal screw hole, and the screw hole is embedded in the nut part.

[0013] Preferably, the fastening bolt is arranged in several groups, and the fastening bolts are uniformly distributed on the periphery of the screw hole.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model discloses a structure that is simple in structure, convenient to use and convenient to disassemble, and the self-tapping screw can be repeatedly used.

[0016] When the fastening bolt is loosened and moves upwards, the pressure on the pressing block decreases, so that the pressure between the clamping ring and the material end face can be reduced, thereby facilitating the disassembly of the self-tapping screw and the replacement of the clamping ring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the internal structure schematic diagram of the utility model;

[0019] Figure 3 It is the utility model Figure 2 It is the enlarged structure schematic diagram of A place in the utility model;

[0020] Figure 4 It is the structure schematic diagram of the utility model after removing the clamping ring;

[0021] Figure 5 It is the clamping ring structure schematic diagram of the utility model;

[0022] Figure 6 It is a top view structural schematic diagram of the utility model;

[0023] Figure 7 It is a bottom view structural schematic diagram of the utility model.

[0024] In the drawing: 1, screw main body; 2, screw rod part; 3, nut part; 4, connecting rod; 5, threaded rod; 6, clamping ring; 7, fastening bolt; 8, clamping groove; 9, positioning block; 10, positioning groove; 11, strip-shaped clamping tooth; 12, bolt hole; 13, compression spring; 14, pressing block; 15, screw hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-4 The utility model provides a kind of self-tapping screw assembly with elastic piece anti-skid and anti-loosening technical solutions: including screw main body 1, the screw main body 1 is made of screw rod part 2 and nut part 3, the screw rod part 2 is made of connecting rod 4 and threaded rod 5, the connecting rod 4 is located above threaded rod 5, threaded rod 5 is provided with external thread, the top of connecting rod 4 is fixedly connected with the bottom of nut part 3, and screw rod part 2 and nut part 3 are integrally formed, anti-loosening structure is arranged between screw rod part 2 and nut part 3, the anti-loosening structure includes clamping ring 6 and fastening bolt 7, the bottom of nut part 3 is provided with clamping groove 8, the clamping groove 8 is around the periphery of connecting rod 4, the clamping ring 6 is installed in clamping groove 8, and the fastening bolt 7 is installed in the inside of nut part 3.

[0027] In the embodiment, by setting anti-loosening structure between screw rod part 2 and nut part 3, anti-loosening structure is installed in the clamping groove 8 at the bottom of nut part 3 when using, and strip-shaped clamping tooth 11 on the lower surface of clamping ring 6 is engaged with material end face when gradually fastening, to realize the purpose of anti-skid and anti-loosening.

[0028] As shown in Figure 2 The clamping ring 6 is circular ring structure, and the clamping ring 6 is sleeved on the connecting rod 4.

[0029] In the embodiment, clamping ring 6 can pass through screw rod part 2, so that clamping ring 6 can be replaced, so that self-tapping screw can be used multiple times.

[0030] As shown in Figure 5As shown, the outer wall of the clamping ring 6 is provided with positioning blocks 9, the positioning blocks 9 are provided in several groups, and the positioning blocks 9 are uniformly distributed outside the clamping ring 6.

[0031] In this embodiment, the positioning blocks 9 on the clamping ring 6 are matched and fixed with the positioning grooves 10 on the clamping groove 8, which is used to fix the clamping ring 6.

[0032] In combination Figure 4 As shown, the side wall of the clamping groove 8 is provided with positioning grooves 10, and the positioning grooves 10 correspond one-to-one with the positioning blocks 9 on the clamping ring 6.

[0033] In this embodiment, the positioning grooves 10 are used to fix the clamping ring 6, which can prevent the clamping ring 6 from rotating and play a positioning role.

[0034] In combination Figure 1 , Figure 7 As shown, the lower surface of the clamping ring 6 is provided with strip-shaped clamping teeth 11, which are uniformly distributed along the center of the clamping ring 6.

[0035] In this embodiment, due to the structure of the strip-shaped clamping teeth 11, the resistance is small when the self-tapping screw is tightened, and the friction is large in the reverse motion, thereby realizing anti-skid and anti-loose.

[0036] In combination Figure 2 , Figure 3 As shown, the fastening bolt 7 is located in the nut part 3, the nut part 3 is provided with a bolt hole 12 inside, the bolt hole 12 is provided with a compression spring 13 and a pressing block 14 inside, the bottom of the pressing block 14 is in contact with the clamping ring 6, the compression spring 13 is located above the pressing block 14, the fastening bolt 7 is located above the compression spring 13, and the fastening bolt 7 is in threaded connection with the bolt hole 12, and the top of the fastening bolt 7 is embedded in the nut part 3.

[0037] In this embodiment, the fastening bolt 7 can push the compression spring 13 to compress, and the compression spring 13 can extrude the pressing block 14, so as to transmit the pressure to the clamping ring 6.

[0038] In combination Figure 6 As shown, the nut part 3 is provided with a threaded hole 15, the threaded hole 15 is a hexagonal threaded hole, the threaded hole 15 is embedded in the nut part 3, the fastening bolt 7 is provided in several groups, and the fastening bolt 7 is uniformly distributed on the periphery of the threaded hole 15.

[0039] In this embodiment, the self-tapping screw can be rotated through the threaded hole 15, and the fastening bolt 7 is used to assist in providing and releasing pressure.

[0040] Working principle: the utility model discloses a prevent loosening structure between screw rod part 2 and nut part 3, install the prevent loosening structure in the clamping groove 8 of nut part 3 bottom when using, and the positioning block 9 on the clamping ring 6 and the positioning groove 10 on the clamping groove 8 are mutually fixed with each other, install the self tapping screw in the material that needs to be fixed, and the self tapping screw is rotated fastening through the screw hole 15, and the bar clamping tooth 11 on the lower surface of clamping ring 6 and the material end surface are engaged when gradually fastening, and the bar clamping tooth 11 is set up the structure and makes the self tapping screw resistance smaller when rotating, and the friction is greater in reverse movement, thereby realize anti -skid and prevent loosening, when disassembling, need to loosen the fastening bolt 7, and the pressure on the pressing block 14 reduces when the fastening bolt 7 moves up, thereby can reduce the pressure between clamping ring 6 and the material end surface, thereby can facilitate the disassembly of self tapping screw.

[0041] It is to be understood that the terminology used herein such as first and second, and the like, is merely intended to differentiate one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made hereto without departing from the spirit and scope of the application in its broadest form. The scope of the present application should be limited only by the appended claims and their equivalents.

Claims

1. A self-tapping screw assembly with elastic member anti-skid and anti-loose, comprising a screw body (1), characterized in that: The screw body (1) is composed of a screw rod part (2) and a nut part (3), the screw rod part (2) is composed of a connecting rod (4) and a threaded rod (5), the connecting rod (4) is above the threaded rod (5), the threaded rod (5) is provided with external threads, the top of the connecting rod (4) is fixedly connected with the bottom of the nut part (3), and the screw rod part (2) and the nut part (3) are integrally formed, a loosening prevention structure is arranged between the screw rod part (2) and the nut part (3), the loosening prevention structure comprises a clamping ring (6) and a fastening bolt (7), the bottom of the nut part (3) is provided with a clamping groove (8), the clamping groove (8) surrounds the periphery of the connecting rod (4), the clamping ring (6) is installed in the clamping groove (8), and the fastening bolt (7) is installed inside the nut part (3).

2. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 1, characterized in that, The clamping ring (6) is a circular ring structure, and the clamping ring (6) is sleeved on the connecting rod (4).

3. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 2, characterized in that, The outer wall of the clamping ring (6) is provided with positioning blocks (9), the positioning blocks (9) are provided in multiple groups, and the positioning blocks (9) are uniformly distributed outside the clamping ring (6).

4. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 3, characterized in that, A positioning groove (10) is formed in the side wall of the clamping groove (8), and the positioning groove (10) corresponds to the positioning block (9) on the clamping ring (6) in one-to-one correspondence.

5. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 4, characterized in that, A strip-shaped clamping tooth (11) is arranged on the lower surface of the clamping ring (6), and the strip-shaped clamping tooth (11) is uniformly distributed along the center of the clamping ring (6).

6. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 5, characterized in that, The fastening bolt (7) is located in the nut part (3), the nut part (3) is provided with a bolt hole (12) inside, and the bolt hole (12) is provided with a compression spring (13) and a pressing block (14) inside.

7. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 6, characterized in that, The bottom of the pressing block (14) is in contact with the clamping ring (6), the compression spring (13) is above the pressing block (14), the fastening bolt (7) is above the compression spring (13), the fastening bolt (7) is in threaded connection with the bolt hole (12), and the top of the fastening bolt (7) is embedded in the nut part (3).

8. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 7, characterized in that, The nut part (3) is provided with a threaded hole (15), the threaded hole (15) is a hexagonal threaded hole, and the threaded hole (15) is embedded in the nut part (3).

9. The self-tapping screw assembly with elastic member slip and loosening prevention according to claim 8, characterized in that, The fastening bolt (7) is provided in multiple groups, and the fastening bolts (7) are uniformly distributed around the periphery of the threaded hole (15).

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