Fastener capable of adjusting bolt fastening force

Abstract

The utility model belongs to the technical field of fasteners, and particularly relates to a fastener capable of adjusting bolt fastening force, which comprises an arc-shaped seat and an arc-shaped cover, the left side and the right side of the upper end of the arc-shaped seat are respectively provided with a limit groove, the left side and the right side of the lower end of the arc-shaped cover are respectively and fixedly connected with a limit block, and the limit blocks are slidably connected into the limit grooves. Lower lug plates are fixedly connected to the left side and the right side of the upper end of the arc-shaped seat correspondingly, upper lug plates are fixedly connected to the left side and the right side of the lower end of the arc-shaped cover correspondingly, and bolts are rotationally connected to the interiors of the lower lug plates and the interiors of the upper lug plates through threads correspondingly. The rubber pad is fixedly connected to the lower end of the bolt, the rubber pad is tightly attached to the lower end of the lower lug plate in a friction mode, the rubber pad is tightly attached to the interior of the anti-disengaging ring in a friction mode, and therefore the protection performance of the rubber pad is improved, the bolt is limited through mutual friction between the rubber pad and the anti-disengaging ring, and the bolt is prevented from moving upwards to cause limiting looseness.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a fastener with adjustable bolt tightening force. Background Technology

[0002] Couplers generally refer to intermediate connecting parts that connect two structural members. In construction engineering, they are mostly used for fixing steel pipe scaffolding with an outer diameter of Φ48mm. Couplers are divided into right-angle couplers (cross couplers and directional couplers), swivel couplers (movable couplers and universal couplers), and butt couplers (straight couplers and direct couplers), etc. Domestically commonly used couplers are made of cast iron, and their mechanical properties should meet the requirements of "Steel Pipe Scaffolding Couplers" (GB15831-2006), with a material standard no lower than KT330-08. There are three types of couplers: right-angle couplers, butt couplers, and swivel couplers. They are packaged in woven bags, with 25 couplers per bag. Each coupler should weigh 1.1KG (including bolts and nuts). Generally, rust prevention is achieved by dipping them in red anti-rust paint. They are used in conjunction with scaffolding pipes. The general production and procurement ratio of couplers is 8:1:1, meaning that right-angle couplers account for 80%, butt couplers 10%, and swivel couplers 10%.

[0003] According to patent authorization announcement number CN214888164U, an adjustable bolt tightening force fastener includes a fastener, a bolt, a nut, and a fastener. The fastener includes a first latch and a second latch, with one end of the first latch and one end of the second latch hinged together. The other end of the first latch has a first bolt hole, and the other end of the second latch has a second bolt hole. The bolt passes through the first bolt hole and the second bolt hole, and the first latch and the second latch are tightened by the nut. The fastener includes an upper cover plate, a lower cover plate, and springs. The upper cover plate and the lower cover plate are located between the nut and the first or second latch, and are spaced a certain distance apart. Multiple springs are located between the upper cover plate and the lower cover plate and are centrally symmetrically distributed around the bolt. This utility model provides an adjustable bolt tightening force fastener that visually reflects the bolt tightening force through a spring retraction device, eliminating the need to check each bolt with a torque wrench.

[0004] However, in existing bolt-fastened fasteners, the bolt connections are prone to loosening after prolonged use, which affects the stability of the fastener installation and thus the effectiveness of limiting the object. In addition, anti-slip pads are set on the inside of the fasteners to prevent slippage and protect the limiting object, but these anti-slip pads are prone to falling off after prolonged use, which affects the stability of the anti-slip pad installation and also affects the anti-slip effect. Utility Model Content

[0005] The purpose of this invention is to provide a fastener with adjustable bolt tightening force, which solves the problems of limiting the bolt position and limiting the anti-slip pad position.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fastener with adjustable bolt tightening force, comprising an arc-shaped seat and an arc-shaped cover. Limiting grooves are respectively formed on the left and right sides of the upper end of the arc-shaped seat. Limiting blocks are respectively fixedly connected to the left and right sides of the lower end of the arc-shaped cover. The limiting blocks are slidably connected inside the limiting grooves. Lower ear plates are respectively fixedly connected to the left and right sides of the upper end of the arc-shaped seat. Upper ear plates are respectively fixedly connected to the left and right sides of the lower end of the arc-shaped cover. Bolts are respectively rotatably connected to the interior of the lower ear plates and the interior of the upper ear plates via threads. An anti-slip mechanism is provided at the lower end of each bolt. Reinforcing mechanisms are respectively provided on the inner sides of the arc-shaped seat and the arc-shaped cover.

[0007] Preferably, the anti-slip mechanism includes a rubber pad, the lower end of the bolt is fixedly connected to the rubber pad, the lower end of the bolt is fixedly connected to a hanger rod, and the lower end of the hanger rod is fixedly connected to a hanger block.

[0008] Preferably, the upper end of the rubber pad has a hanging rod hole, the lower end of the rubber pad has a hanging block groove, the hanging rod is connected to the inside of the hanging rod hole, and the hanging block is connected to the inside of the hanging block groove.

[0009] Preferably, a collar is fixedly connected to the lower end of the lower ear plate. The collar has a groove. A limiting ring is fixedly connected inside the groove. An anti-detachment ring is fixedly connected inside the limiting ring. The anti-detachment ring is fixedly connected to the lower end of the lower ear plate. The rubber pad is tightly connected to the inside of the anti-detachment ring.

[0010] Preferably, the reinforcing mechanism includes an arc-shaped pad, and the arc-shaped pad is fixedly connected to the inside of the arc-shaped seat and the arc-shaped cover, and the arc-shaped pad is fixedly connected to an arc-shaped plate.

[0011] Preferably, the arc-shaped seat and the arc-shaped cover are respectively provided with arc-shaped grooves inside, and the arc-shaped plate is fixedly connected to the inside of the arc-shaped grooves.

[0012] Preferably, the arc-shaped plate is fixedly connected to multiple connecting rods, and the connecting rods are fixedly connected to anti-detachment blocks. The connecting rods and anti-detachment blocks are respectively fixedly connected to the arc-shaped seat and the arc-shaped cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model reinforces the installation of the rubber pad by setting up the suspension rod and the suspension block. The rubber pad is fixedly connected to the lower end of the bolt. The rubber pad is in close contact and friction with the lower end of the lower ear plate. The rubber pad is in close contact and friction with the inside of the anti-loosening ring. The anti-loosening ring is made of rubber, thereby increasing the protective performance of the rubber pad. The bolt is limited by the mutual friction between the rubber pad and the anti-loosening ring, preventing the bolt from moving upward and causing the limit to loosen.

[0015] 2. This utility model uses an arc-shaped pad placed inside an arc-shaped plate. The arc-shaped plate is pulled by a connecting rod and an anti-detachment block, which increases the stability of the arc-shaped plate's installation limit, thereby increasing the installation limit of the arc-shaped pad and preventing the arc-shaped pad from detaching from the arc-shaped seat and the arc-shaped cover, thus affecting the anti-slip effect. Attached Figure Description

[0016] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ;

[0017] Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ;

[0018] Figure 3 This utility model has a partial three-dimensional structure. Figure 1 ;

[0019] Figure 4 This utility model has a partial three-dimensional structure. Figure 2 ;

[0020] Figure 5 This is a partial sectional view of the overall structure of this utility model.

[0021] In the diagram: 1. Arc-shaped seat, 2. Arc-shaped cover, 3. Limiting groove, 4. Limiting block, 5. Lower ear plate, 6. Upper ear plate, 7. Bolt, 8. Anti-slip mechanism, 9. Reinforcing mechanism, 81. Rubber pad, 82. Hanging rod, 83. Hanging block, 84. Hanging rod hole, 85. Hanging block groove, 86. Collar, 87. Ring groove, 88. Limiting ring, 89. Anti-detachment ring, 91. Arc-shaped pad, 92. Arc-shaped plate, 93. Arc-shaped groove, 94. Connecting rod, 95. Anti-detachment block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 5An adjustable bolt fastener includes an arc-shaped seat 1 and an arc-shaped cover 2. Limiting grooves 3 are respectively opened on the left and right sides of the upper end of the arc-shaped seat 1. Limiting blocks 4 are respectively fixedly connected to the left and right sides of the lower end of the arc-shaped cover 2. The limiting grooves 3 and the limiting blocks 4 are slidably connected to limit the connection between the arc-shaped seat 1 and the arc-shaped cover 2. The limiting blocks 4 are slidably connected inside the limiting grooves 3. Lower ear plates 5 are respectively fixedly connected to the left and right sides of the upper end of the arc-shaped seat 1. Upper ear plates 6 are respectively fixedly connected to the left and right sides of the lower end of the arc-shaped cover 2. Bolts 7 are respectively rotatably connected to the interior of the lower ear plate 5 and the interior of the upper ear plate 6 through threads. An anti-slip mechanism 8 is provided at the lower end of the bolts 7. Reinforcing mechanisms 9 are respectively provided on the inner sides of the arc-shaped seat 1 and the arc-shaped cover 2.

[0024] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 The anti-slip mechanism 8 includes a rubber pad 81. The lower end of a bolt 7 is fixedly connected to the rubber pad 81, and a hanger 82 is fixedly connected to the lower end of the bolt 7. A hanger block 83 is fixedly connected to the lower end of the hanger 82. The hanger 82 and hanger block 83 limit the movement of the rubber pad 81, increasing installation stability. A hanger hole 84 is provided at the upper end of the rubber pad 81, and a hanger block groove 85 is provided at the lower end of the rubber pad 81. The hanger 82 is connected inside the hanger hole 84, and the hanger block 85... 3 is connected to the inside of the hanging block groove 85. The lower end of the lower ear plate 5 is fixedly connected to a collar 86. The collar 86 has a ring groove 87. A limit ring 88 is fixedly connected inside the ring groove 87. An anti-detachment ring 89 is fixedly connected inside the limit ring 88. The anti-detachment ring 89 is limited by the connection between the ring groove 87 and the limit ring 88, which increases the stability of the installation. The anti-detachment ring 89 is fixedly connected to the lower end of the lower ear plate 5. The rubber pad 81 is tightly connected to the inside of the anti-detachment ring 89.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 The reinforcement mechanism 9 includes an arc-shaped pad 91. The arc-shaped pad 91 is fixedly connected to the inside of the arc-shaped seat 1 and the arc-shaped cover 2. The arc-shaped pad 91 is fixedly connected to the arc-shaped plate 92. The inside of the arc-shaped seat 1 and the arc-shaped cover 2 are respectively provided with arc-shaped grooves 93. The arc-shaped plate 92 is fixedly connected to the inside of the arc-shaped grooves 93. The arc-shaped plate 92 is fixedly connected to multiple connecting rods 94. The connecting rods 94 are fixedly connected to anti-detachment blocks 95. The connecting rods 94 and the anti-detachment blocks 95 are fixedly connected to the arc-shaped seat 1 and the arc-shaped cover 2 respectively.

[0026] The specific implementation process of this utility model is as follows: In use, the slidable insertion limiting block 4 is inserted into the limiting groove 3, thereby connecting the arc-shaped seat 1 and the arc-shaped cover 2. Figure 1As shown, the upper ear plate 6 and the lower ear plate 5 are then connected by bolts 7. At the same time, the rubber pad 81 is connected to the inside of the anti-detachment ring 89, and the arc-shaped pad 91 is set inside the arc-shaped plate 92. The arc-shaped plate 92 is pulled by the connecting rod 94 and the anti-detachment block 95 to increase the stability of the installation limit of the arc-shaped plate 92, thereby increasing the installation limit of the arc-shaped pad 91 and preventing the arc-shaped pad 91 from detaching from the inside of the arc-shaped seat 1 and the arc-shaped cover 2 and affecting the anti-slip effect.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable fastener for tightening a bolt, comprising an arc-shaped seat (1) and an arc-shaped cover (2), characterized in that: The upper end of the arc-shaped seat (1) is provided with a limiting groove (3) on the left and right sides, respectively, the lower end of the arc-shaped cover (2) is fixedly connected with a limiting block (4) on the left and right sides, respectively, the limiting block (4) is slidably connected in the limiting groove (3), the upper end of the arc-shaped seat (1) is fixedly connected with a lower lug plate (5) on the left and right sides, respectively, the lower end of the arc-shaped cover (2) is fixedly connected with an upper lug plate (6) on the left and right sides, respectively, the inside of the lower lug plate (5) and the inside of the upper lug plate (6) are rotatably connected with a bolt (7) through threads, respectively, the lower end of the bolt (7) is provided with an anti-skid mechanism (8), and the inner sides of the arc-shaped seat (1) and the arc-shaped cover (2) are provided with a reinforcing mechanism (9).

2. A fastener for adjustable bolt tightening according to claim 1, characterized in that: The anti-skid mechanism (8) comprises a rubber pad (81), the lower end of the bolt (7) is fixedly connected with the rubber pad (81), the lower end of the bolt (7) is fixedly connected with a suspender (82), and the lower end of the suspender (82) is fixedly connected with a hanging block (83).

3. A fastener for adjustable bolting according to claim 2, characterized in that: The upper end of the rubber pad (81) is provided with a suspender hole (84), the lower end of the rubber pad (81) is provided with a hanging block groove (85), the suspender (82) is connected in the suspender hole (84), and the hanging block (83) is connected in the hanging block groove (85).

4. A fastener for adjustable bolting according to claim 3, characterized in that: The lower end of the lower lug plate (5) is fixedly connected with a sleeve ring (86), the sleeve ring (86) is provided with a ring groove (87), the inside of the ring groove (87) is fixedly connected with a limiting ring (88), the inside of the limiting ring (88) is fixedly connected with an anti-dropping ring (89), the anti-dropping ring (89) is fixedly connected to the lower end of the lower lug plate (5), and the rubber pad (81) is tightly connected to the inside of the anti-dropping ring (89).

5. The adjustable bolt fastener of claim 1, wherein: The reinforcing mechanism (9) comprises an arc-shaped pad (91), the inner sides of the arc-shaped seat (1) and the arc-shaped cover (2) are fixedly connected with the arc-shaped pad (91), respectively, and the arc-shaped pad (91) is fixedly connected with an arc-shaped plate (92).

6. A fastener for adjustable bolting according to claim 5, characterized in that: The inner sides of the arc-shaped seat (1) and the arc-shaped cover (2) are provided with an arc-shaped groove (93), respectively, and the arc-shaped plate (92) is fixedly connected in the arc-shaped groove (93).

7. A fastener for adjustable bolting according to claim 5, characterized in that: The arc-shaped plate (92) is fixedly connected with a plurality of connecting rods (94), the connecting rods (94) are fixedly connected with anti-dropping blocks (95), and the connecting rods (94) and the anti-dropping blocks (95) are fixedly connected to the arc-shaped seat (1) and the arc-shaped cover (2), respectively.

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