Self-locking structure of high-strength fastener

Abstract

The utility model relates to the technical field of fasteners, in particular to a self-locking structure of a high-strength fastener, which comprises a fastener, the fastener comprises two bases, a retaining ring is rotatably connected to the outer side of a connecting ring, a connecting component is movably arranged at the other end of each base, and the connecting component comprises an inserting rod movably inserted into an inserting groove. A screw is fixedly installed on the surface of one end of the inserting rod, a nut is screwed to the outer side of the screw, and the limiting assembly is fixedly installed at one end of the retaining ring. According to the utility model, the screw rod is fixed, the U-shaped groove sleeves the outer side of the screw rod, then the limiting rod is turned over, the retaining ring and the screw rod are preliminarily fixed, and when the nut is screwed for fastening, the nut extrudes the limiting block to move and fix the limiting rod, so that the retaining ring is fixed, the stability of the retaining ring is improved, and the retaining ring is prevented from being opened by autorotation; the screw rod is prevented from turning over and falling off from the interior of the U-shaped groove, the firmness of the fastener during connection is improved, the connection firmness of the scaffold steel pipe is kept, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field, concretely is a kind of self-locking structure of high-strength fastener. BACKGROUND

[0002] Fastener generally refers to the intermediate connecting part of connecting two components, which is commonly used for fixing steel pipe scaffold in construction engineering. Fastener is divided into right-angle fastener (cross fastener and directional fastener), rotating fastener (movable fastener and universal fastener), butt joint fastener (straight fastener and direct fastener) and the like.

[0003] The existing scaffold fastener is mostly turned over screw rod to rotate screw rod into the U-shaped groove inside one end of buckle when using, and the screw nut is screwed to connect and fix the buckle and base. When the screw nut is loose, the screw rod will be turned over and fall off from the U-shaped groove. At this time, the buckle is easy to open, and the fastness of fastener connection is poor, which leads to the decrease of fastness of scaffold steel pipe connection and the existence of certain safety hazard. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of self-locking structure of high-strength fastener to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of self-locking structure of high-strength fastener, comprising:

[0007] Fastener, the fastener includes two bases, the base one end is fixedly installed with connecting ring, the connecting ring outer side is rotatably connected with buckle, the buckle one end is provided with U-shaped groove, the base other end is provided with insertion slot;

[0008] Connecting assembly, movably arranged at the other end of base, the connecting assembly includes plug rod movably inserted into the insertion slot, the plug rod one end surface is fixedly installed with screw rod, the screw rod outer side is screw-connected with screw nut;

[0009] Limiting assembly, fixedly installed at one end of buckle.

[0010] Further, the connecting ring and the buckle connection place movably pass through No. 2 connecting rod, and No. 2 connecting rod is rotatably connected with connecting ring and buckle respectively.

[0011] Further, the plug rod outer side surface one end is symmetrically fixedly installed with stop rod, and the plug rod one side surface is provided with connecting hole.

[0012] Preferably, the two bases are rotatably connected with No. 1 connecting rod, the base other end is provided with threaded groove penetrating insertion slot, and the U-shaped groove inner side surface is symmetrically provided with sliding groove.

[0013] Preferably, a bolt is screw-connected inside the thread groove, and the bolt movably penetrates the connecting hole.

[0014] Preferably, the limiting assembly comprises:

[0015] Two stepped rods are symmetrically fixedly installed at one end of the outer surface of the clasp ring.

[0016] Two rotating plates are symmetrically rotatably connected to the outer surfaces of the two stepped rods.

[0017] Two limiting rods are respectively fixedly installed at one end surface of the two rotating plates.

[0018] Preferably, a sliding block is slidably connected inside the sliding groove, one end of the sliding block is fixedly installed with a limiting block, the other end of the rotating plate is provided with a limiting slot, and the limiting block is movably inserted into the limiting slot at the corresponding position.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1. After the clasp ring is buckled, the rotating plate is turned over, the limiting rod is buckled to the blocking rod, then the nut is twisted, the nut is pressed downwards to the sliding block, the limiting block is inserted into the limiting slot, the rotating plate is fixed, the clasp ring is further fixed through the different shaft rotation of the clasp ring and the rotating plate under the condition that the limiting rod is not loosened, the rotation of the clasp ring is limited, the stability of the clasp ring is increased when the clasp ring is fixed, the clasp ring is prevented from being opened by self-rotation, the screw rod is prevented from being turned over and falling off from the U-shaped groove when the nut is loosened, the firmness of the fastener connection is improved, the firmness of the scaffold steel pipe connection is maintained, and the safety hidden danger is reduced.

[0021] 2. The bolt is twisted to be screw-connected inside the thread groove, the plug rod is fixed in the plug groove through the connecting hole, conversely, the bolt is disassembled, the plug rod is moved out of the plug groove, and the screw rod is replaced, so that the screw rod can be quickly replaced when the thread of the screw rod is damaged. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the overall structure schematic diagram of the utility model;

[0023] Figure 2 is the overall vertical section structure schematic diagram of the utility model;

[0024] Figure 3 is the overall side section structure schematic diagram of the utility model;

[0025] Figure 4 is the overall split structure schematic diagram of the utility model;

[0026] Figure 5 is the split structure schematic diagram of the connecting assembly and the limiting assembly in the utility model.

[0027] In the figure: 1, fastener; 101, base; 102, No. 1 connecting rod; 103, connecting ring; 104, clasp; 105, No. 2 connecting rod; 106, insertion slot; 107, U-shaped slot; 108, sliding slot; 109, threaded slot; 2, connecting assembly; 201, insertion rod; 202, connecting hole; 203, screw rod; 204, stop rod; 205, bolt; 206, nut; 3, limiting assembly; 301, stepped rod; 302, rotating plate; 303, limiting rod; 304, limiting slot; 305, sliding block; 306, limiting block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described 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, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] Please refer to Figures 1-5 In the embodiments of the present application, the self-locking structure of the high-strength fastener comprises a fastener 1, the fastener 1 comprises two bases 101, one end of each base 101 is fixedly installed with a connecting ring 103, the outer side of the connecting ring 103 is rotationally connected with a clasp 104, a No. 2 connecting rod 105 is movably inserted at the connecting position of the connecting ring 103 and the clasp 104, and the No. 2 connecting rod 105 is rotationally connected with the connecting ring 103 and the clasp 104 respectively, the No. 2 connecting rod 105 enables the clasp 104 to be flipped open, and a steel pipe is clamped between the clasp 104 and the base 101, a U-shaped slot 107 is formed at one end of the clasp 104, an insertion slot 106 is formed at the other end of the base 101, a connecting assembly 2 is movably arranged at the other end of the base 101, the connecting assembly 2 comprises an insertion rod 201 movably inserted into the insertion slot 106, a screw rod 203 is fixedly installed on the surface of one end of the insertion rod 201, a nut 206 is screw-coupled with the outer side of the screw rod 203, and a limiting assembly 3 is fixedly installed at one end of the clasp 104.

[0030] Specifically, when the clasp 104 is flipped closed, the screw rod 203 is clamped inside the U-shaped slot 107, the screw rod 203 does not rotate, the nut 206 is screwed, the clasp 104 is fastened, and the screw rod 203 is prevented from being flipped off when the nut 206 is loosened, and the limiting assembly 3 further improves the fastness of the connection between the screw rod 203 and the clasp 104.

[0031] Embodiment one

[0032] For example Figure 4 and Figure 5As shown, in this embodiment, the two bases 101 are rotatably connected by a first connecting rod 102, the other end of the base 101 is provided with a threaded slot 109 penetrating the slot 106, and the inner surface of the U-shaped slot 107 is symmetrically provided with a sliding slot 108; the outer surface of the insertion rod 201 is symmetrically fixedly provided with a stop rod 204, and the side surface of the insertion rod 201 is provided with a connecting hole 202.

[0033] In this embodiment, the two bases 101 are rotatably connected by the first connecting rod 102, the stop rod 204 is buckled to the limiting rod 303, and the clasp ring 104 is prevented from being automatically turned open to improve the stability during fastening.

[0034] As shown in Figures 2-5 In this embodiment, the limiting assembly 3 comprises: two stepped rods 301 symmetrically fixedly installed at one end of the outer surface of the clasp ring 104, two rotating plates 302 symmetrically rotatably connected to the outer surface of the two stepped rods 301, and two limiting rods 303 respectively fixedly installed at one end surface of the two rotating plates 302; a sliding block 305 is slidably connected inside the sliding slot 108, the sliding block 305 is fixedly installed at one end of the limiting block 306, the other end of the rotating plate 302 is provided with a limiting slot 304, and the limiting block 306 is movably inserted into the limiting slot 304 at the corresponding position.

[0035] In specific implementation, after the clasp ring 104 is buckled, the rotating plate 302 is turned over, the limiting rod 303 buckles the stop rod 204, is located between the stop rod 204 and the base 101, then the nut 206 is screwed, the nut 206 presses the sliding block 305 downward, the sliding block 305 slides downward along the sliding slot 108, the limiting block 306 is inserted into the limiting slot 304, and the rotating plate 302 is fixed. At this time, by different shaft rotations of the clasp ring 104 and the rotating plate 302, the rotation of the clasp ring 104 is limited under the condition that the limiting rod 303 is not loosened, the screw rod 203 and the clasp ring 104 are further fixed, so that the clasp ring 104 is fixed while the stability of the clasp ring 104 is increased, the clasp ring 104 is prevented from being automatically turned open, the screw rod 203 is prevented from being turned over and falling off from the U-shaped slot 107 when the nut 206 is loosened, the fastening of the connecting part 1 is improved, the fastening of the scaffold steel pipe is maintained, and the safety hazard is reduced.

[0036] Embodiment Two

[0037] On the basis of Embodiment One, in order to make up for the problem that the screw rod 203 is not convenient to replace after being damaged.

[0038] As shown in Figure 2 and Figure 4 In this embodiment, the threaded slot 109 is rotatably connected with a bolt 205, and the bolt 205 movably penetrates the connecting hole 202.

[0039] In the embodiment, the bolt 205 is screwed in the threaded groove 109, and the insertion rod 201 is fixed in the insertion groove 106 through the connecting hole 202, and vice versa, the bolt 205 is disassembled, the insertion rod 201 is removed from the insertion groove 106, and the screw rod 203 is replaced, so that the screw rod 203 can be quickly replaced when the screw rod 203 is damaged.

[0040] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A self-locking structure of a high-strength fastener, characterized by comprising: Include: Fastener (1), the fastener (1) includes two bases (101), one end of the base (101) is fixedly installed with a connecting ring (103), the outer side of the connecting ring (103) is rotatably connected with a buckle ring (104), the buckle ring (104) is provided with a U-shaped groove (107) at one end, the other end of the base (101) is provided with a slot (106); Connecting assembly (2), movably provided at the other end of the base (101), the connecting assembly (2) includes an insertion rod (201) movably inserted into the slot (106), the surface of one end of the insertion rod (201) is fixedly installed with a screw rod (203), the outer side of the screw rod (203) is screw-connected with a nut (206); Limiting assembly (3), fixedly installed at one end of the buckle ring (104).

2. The self-locking structure of a high-strength fastener according to claim 1, wherein The connecting ring (103) and the buckle ring (104) are movably inserted with a No. 2 connecting rod (105), and the No. 2 connecting rod (105) is rotatably connected with the connecting ring (103) and the buckle ring (104).

3. The self-locking structure of a high-strength fastener according to claim 1, wherein The outer surface of one end of the insertion rod (201) is symmetrically fixedly installed with a stop rod (204), and the side surface of the insertion rod (201) is provided with a connecting hole (202).

4. The self-locking structure of a high-strength fastener according to claim 3, wherein A No. 1 connecting rod (102) is rotatably connected between the two bases (101), the other end of the base (101) is provided with a threaded groove (109) penetrating the slot (106), and the inner surface of the U-shaped groove (107) is symmetrically provided with a sliding groove (108).

5. The self-locking structure of a high-strength fastener according to claim 4, wherein The threaded groove (109) is screw-connected with a bolt (205), and the bolt (205) movably penetrates the connecting hole (202).

6. The self-locking structure of a high-strength fastener according to claim 4, wherein The limiting assembly (3) includes: Two stepped rods (301) are symmetrically fixedly installed at one end of the outer surface of the buckle ring (104); Two rotating plates (302) are symmetrically rotatably connected to the outer surfaces of the two stepped rods (301); Two limiting rods (303) are respectively fixedly installed on the one end surfaces of the two rotating plates (302).

7. The self-locking structure of a high-strength fastener according to claim 6, wherein The sliding groove (108) is slidably connected with a sliding block (305), one end of the sliding block (305) is fixedly installed with a limiting block (306), the other end of the rotating plate (302) is provided with a limiting groove (304), and the limiting block (306) is movably inserted into the limiting groove (304) at the corresponding position.

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