Multi-fastening screw

Abstract

The utility model belongs to the technical field of screws, and particularly relates to a multi-fastening screw which comprises a screw body, a first workpiece and a second workpiece, a screw cap is arranged at the top of the screw body, a screw hole is formed in the first workpiece and penetrates through the second workpiece, a limiting mechanism is arranged on one side of the screw body, and a protection piece is arranged at the bottom of the screw cap. A fixing rope and a fixing piece are arranged on one side of the screw cap, the screw body is sleeved with the protective pad, the top of the protective pad is fixedly installed at the bottom of the screw cap, a plurality of sets of mini blocks are fixedly installed at the bottom of the protective pad, and the bottoms of the mini blocks have certain radians. Through the arrangement of the limiting mechanism, the fixing rope, the fixing piece and the protection piece, the screw can conduct multiple fastening on a workpiece through the structure, the fastening effect of the screw on the workpiece can be further improved, and the structure can prevent the bottom of the screw cap from causing abrasion to the surface of the workpiece while ensuring that the bottom of the screw cap is tightly attached to the surface of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a multiple fastening screw. Background Art

[0002] A screw is a tool that uses the physics and mathematical principles of the inclined circular rotation of an object and the friction force to gradually tighten objects and machine parts. The main function of a screw is to connect two workpieces together and tighten them.

[0003] The prior art has the following problems:

[0004] 1. The screws in the prior art are usually used to fasten two workpieces only through the threaded connection of the screw body. The single fastening method of the screw will affect the fastening effect between the workpieces after the screw becomes loose due to thread slippage over time. The fastening effect of the screw on the workpiece can be further improved.

[0005] 2. During the installation process of the screws in the prior art, the bottom of the screw cap is easy to sink into the workpiece, causing wear on the surface of the workpiece, affecting the appearance of the workpiece. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a multiple fastening screw, which solves the problem that the existing screws are usually only used to fasten two workpieces through the threaded connection of the screw body. The single fastening method of the screw will affect the fastening effect between the workpieces after the screw becomes loose due to thread slippage over time. The fastening effect of the screw on the workpiece can be further improved, and the bottom of the screw cap is easily sunk into the workpiece during the installation process, causing wear on the workpiece surface and affecting the appearance of the workpiece.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multiple fastening screw, comprising a screw body, a first workpiece, and a second workpiece, a screw cap is arranged on the top of the screw body, a screw hole is opened on the first workpiece and penetrates the second workpiece, a limiting mechanism is arranged on one side of the screw body, a protective piece is arranged on the bottom of the screw cap, and a fixing rope and a fixing piece are arranged on one side of the screw cap;

[0008] The limiting mechanism is specifically composed of an empty slot, an elastic rod, a limiting rod, a fixed slot, a limiting slot and a limiting block. An empty slot is provided on one side of the screw body, an elastic rod is provided in the empty slot, a limiting rod is provided on one side of the screw body, a fixing slot is provided on one side of the inner wall of the screw hole, limiting slots are provided on both sides of the inner wall of the empty slot, and a limiting block is provided on one side of the limiting rod;

[0009] The protective member is specifically composed of a protective pad, a cavity, an elastic block and a mini block. The bottom of the screw cap is provided with a protective pad, a cavity is opened in the protective pad, an elastic block is provided in the cavity, and the bottom of the protective pad is provided with a mini block.

[0010] As a preferred technical solution of the utility model, the screw hole is adapted to the screw body, the screw body is threadedly connected in the screw hole, one end of the elastic rod is fixedly installed at the bottom of the empty slot and the specific material of the elastic rod is soft rubber.

[0011] As a preferred technical solution of the utility model, the empty slot is matched with the limit rod, and one end of the limit rod is inserted into the empty slot and abuts against the other end of the elastic rod, and limit blocks are fixedly installed on both sides of the inserted end of the limit rod, and the two groups of limit slots are respectively matched with the two groups of limit blocks, and the two groups of limit blocks are respectively slidably installed in the two groups of limit slots.

[0012] As a preferred technical solution of the utility model, the fixing groove is matched with the extended end of the limiting rod, and the extended end of the limiting rod is clamped in the fixing groove.

[0013] As a preferred technical solution of the utility model, the elastic rod, the screw body and the screw cap are all provided with openings adapted to the fixing rope, one end of the fixing rope passes through the screw cap, the screw body, the bottom of the empty slot and the elastic rod in sequence and is fixedly installed on the extending end of the limiting rod, and the fixing piece is fixedly installed on the screw cap near the fixing rope and the fixing piece is overall in a "convex" shape.

[0014] As a preferred technical solution of the utility model, the protective pad is sleeved on the screw body and the top is fixedly installed on the bottom of the screw cap, a plurality of groups of mini blocks are fixedly installed on the bottom of the protective pad and the bottom of the mini blocks has a certain curvature, and the specific materials of the mini blocks and the protective pad are both soft rubber.

[0015] As a preferred technical solution of the utility model, a plurality of groups of elastic blocks are fixedly installed in the cavity, and the elastic blocks are elliptical in shape as a whole. The specific material of the elastic blocks is elastic sponge.

[0016] Compared with the prior art, the utility model provides a multiple fastening screw, which has the following beneficial effects:

[0017] 1. This multiple fastening screw is provided with a limiting mechanism, a fixing rope, and a fixing piece. One end of the limiting rod is clamped in the fixing groove to limit the screw body. The screw as a whole can perform multiple fastenings on the workpiece. When the screw body is slipped over time, the limiting rod is clamped in the fixing groove to limit the screw body. The screw body will not loosen after slipping, which can further improve the fastening effect of the screw on the workpiece. This structure enables the screw to perform multiple fastenings on the workpiece. When the screw body is slipped, the screw as a whole will not loosen due to the fastening effect of the limiting mechanism, which can further improve the fastening effect of the screw on the workpiece.

[0018] 2. This kind of multiple fastening screw is equipped with a protective part. Since the protective pad itself has a certain elasticity and is made of a soft material, and the elastic block combined with the cavity can further enhance the elastic effect of the protective pad, the protective pad as a whole can make the bottom of the screw cap close to the workpiece while preventing the bottom of the screw cap from causing wear on the workpiece surface. This structure can ensure that the bottom of the screw cap is in close contact with the workpiece surface while preventing the bottom of the screw cap from causing wear on the workpiece surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall partial cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the specific structure of the limiting mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the specific structure of the protective element of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the screw body of the utility model.

[0023] In the figure: 1. screw body; 2. screw cap; 3. first workpiece; 4. second workpiece; 5. screw hole; 6. limiting mechanism; 601. empty slot; 602. elastic rod; 603. limiting rod; 604. fixing slot; 605. limiting slot; 606. limiting block; 7. protective part; 701. protective pad; 702. cavity; 703. elastic block; 704. mini block; 8. fixing rope; 9. fixing part. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 In this embodiment: a multiple fastening screw includes a screw body 1, a first workpiece 3, and a second workpiece 4. A screw cap 2 is arranged on the top of the screw body 1. A screw hole 5 is opened on the first workpiece 3 and penetrates the second workpiece 4. The screw hole 5 can facilitate the installation of the screw body 1. A limiting mechanism 6 is arranged on one side of the screw body 1. The limiting mechanism 6 can limit the screw body 1. A protective member 7 is arranged at the bottom of the screw cap 2. The protective member 7 can prevent the bottom of the screw cap 2 from causing wear on the surface of the first workpiece 3. A fixing rope 8 and a fixing member 9 are arranged on one side of the screw cap 2. The fixing member 9 can facilitate the connection and fixation of the fixing rope 8.

[0026] The limiting mechanism 6 is specifically composed of an empty slot 601, an elastic rod 602, a limiting rod 603, a fixed slot 604, a limiting slot 605 and a limiting block 606. An empty slot 601 is provided on one side of the screw body 1. The empty slot 601 can facilitate the movement of the limiting rod 603. An elastic rod 602 is provided in the empty slot 601. A limiting rod 603 is provided on one side of the screw body 1. A fixing slot 604 is provided on one side of the inner wall of the screw hole 5. Limiting slots 605 are provided on both sides of the inner wall of the empty slot 601. The limiting slot 605 can limit the limiting block 606. A limiting block 606 is provided on one side of the limiting rod 603.

[0027] The protective member 7 is specifically composed of a protective pad 701, a cavity 702, an elastic block 703 and a mini block 704. A protective pad 701 is arranged at the bottom of the screw cap 2. A cavity 702 is opened in the protective pad 701. The cavity 702 can facilitate the installation of the elastic block 703. An elastic block 703 is arranged in the cavity 702. A mini block 704 is arranged at the bottom of the protective pad 701. The mini block 704 can make the bottom of the protective pad 701 closer to the first workpiece 3.

[0028] In this embodiment, the screw hole 5 is matched with the screw body 1, the screw body 1 is threadedly connected in the screw hole 5, one end of the elastic rod 602 is fixedly installed at the bottom of the empty slot 601, and the specific material of the elastic rod 602 is soft rubber, and the elastic rod 602 has a rebound reset effect; the empty slot 601 is matched with the limit rod 603, and one end of the limit rod 603 is inserted into the empty slot 601 and abuts against the other end of the elastic rod 602, and both sides of the inserted end of the limit rod 603 are fixedly installed with limit blocks 606 The two groups of limit grooves 605 are respectively matched with the two groups of limit blocks 606, and the two groups of limit blocks 606 are respectively slidably installed in the two groups of limit grooves 605. The limit blocks 606 combined with the limit grooves 605 can prevent the limit rod 603 from leaving the empty groove 601; the fixed groove 604 is matched with the extended end of the limit rod 603, and the extended end of the limit rod 603 is clamped in the fixed groove 604. When the limit rod 603 is clamped in the fixed groove 604, the screw body 1 can be limited, and the screw body 1 will not slip after the thread is slipped. The elastic rod 602, the screw body 1 and the screw cap 2 are all provided with openings adapted to the fixing rope 8. One end of the fixing rope 8 passes through the screw cap 2, the screw body 1, the bottom of the empty slot 601 and the elastic rod 602 in sequence and is fixedly installed on the extending end of the limit rod 603. The fixing member 9 is fixedly installed on the screw cap 2 near the fixing rope 8 and the fixing member 9 is in a "convex" shape as a whole. The movement of the limit rod 603 can be driven by the fixing rope 8; the protective pad 701 is sleeved on the screw body 1 and the top is fixedly installed on the bottom of the screw cap 2. Several groups of mini blocks 704 are fixedly installed on the bottom of the protective pad 701 and the bottom of the mini block 704 has a certain curvature. The specific materials of the mini block 704 and the protective pad 701 are soft rubber, and the protective pad 701 itself has a mobile elastic effect; several groups of elastic blocks 703 are fixedly installed in the cavity 702 and the elastic blocks 703 are elliptical as a whole. The specific material of the elastic blocks 703 is elastic sponge, and the elastic blocks 703 have a good elastic effect.

[0029] The working principle and use process of the utility model are as follows: the operator first checks whether the relevant components are installed in the correct position, pulls the fixing rope 8 to make the limiting rod 603 as a whole located in the empty slot 601, at this time the elastic rod 602 will be squeezed, and at the same time the fixing rope 8 will be tied and fixed to the fixing piece 9, at this time the screw body 1 can be normally threadedly connected to the screw hole 5 by a screwdriver, the screw body 1 can perform preliminary tightening on the first workpiece 3 and the second workpiece 4, and the fixing rope 8 is separated from the fixing piece 9. Due to the rebound and reset effect of the elastic rod 602, one end of the limiting rod 603 will extend out of the empty slot 601 and be clamped in the fixing slot 604, the limiting rod 603 can limit the screw body 1, and further have a tightening effect on the first workpiece 3 and the second workpiece 4, the screw as a whole can perform multiple tightening on the workpieces, and when the screw body 1 is stripped over time, Due to the limiting effect of the limiting rod 603 on the screw body 1 when it is clamped in the fixing groove 604, the screw body 1 will not loosen after thread slipping, which can further improve the fastening effect of the screw on the workpiece. Since the protective pad 701 itself has a certain elasticity and is made of a soft material, and the elastic block 703 combined with the cavity 702 can further improve the elastic effect of the protective pad 701, the protective pad 701 as a whole can make the bottom of the screw cap 2 close to the workpiece while preventing the bottom of the screw cap 2 from causing wear on the workpiece surface. The mini block 704 can make the protective pad 701 closer to the workpiece. This structure allows the screw to perform multiple fastenings on the workpiece. When the screw body 1 is thread slipping, the screw as a whole will not loosen due to the fastening effect of the limiting mechanism 6, which can further improve the fastening effect of the screw on the workpiece, and can ensure that the bottom of the screw cap 2 is close to the workpiece surface while preventing the bottom of the screw cap 2 from causing wear on the workpiece surface.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multiple fastening screw, comprising a screw body (1), a first workpiece (3), and a second workpiece (4), wherein a screw cap (2) is arranged on the top of the screw body (1), and a screw hole (5) is opened on the first workpiece (3) and penetrates the second workpiece (4), characterized in that: A limiting mechanism (6) is provided on one side of the screw body (1), a protective member (7) is provided at the bottom of the screw cap (2), and a fixing rope (8) and a fixing member (9) are provided on one side of the screw cap (2); The limiting mechanism (6) is specifically composed of an empty slot (601), an elastic rod (602), a limiting rod (603), a fixed slot (604), a limiting slot (605) and a limiting block (606); an empty slot (601) is provided on one side of the screw body (1); an elastic rod (602) is arranged in the empty slot (601); a limiting rod (603) is provided on one side of the screw body (1); a fixing slot (604) is provided on one side of the inner wall of the screw hole (5); limiting slots (605) are provided on both sides of the inner wall of the empty slot (601); and a limiting block (606) is provided on one side of the limiting rod (603); The protective member (7) is specifically composed of a protective pad (701), a cavity (702), an elastic block (703) and a mini block (704); the bottom of the screw cap (2) is provided with a protective pad (701); the cavity (702) is provided in the protective pad (701); the elastic block (703) is provided in the cavity (702); and the bottom of the protective pad (701) is provided with a mini block (704).

2. A multiple fastening screw according to claim 1, characterized in that: The screw hole (5) is matched with the screw body (1), the screw body (1) is threadedly connected in the screw hole (5), one end of the elastic rod (602) is fixedly installed at the bottom of the empty slot (601), and the specific material of the elastic rod (602) is soft rubber.

3. A multiple fastening screw according to claim 1, characterized in that: The empty slot (601) is matched with the limiting rod (603), one end of the limiting rod (603) is inserted into the empty slot (601) and abuts against the other end of the elastic rod (602), limiting blocks (606) are fixedly installed on both sides of the inserted end of the limiting rod (603), the two groups of limiting slots (605) are respectively matched with the two groups of limiting blocks (606), and the two groups of limiting blocks (606) are respectively slidably installed in the two groups of limiting slots (605).

4. A multiple fastening screw according to claim 1, characterized in that: The fixing groove (604) is adapted to the protruding end of the limiting rod (603), and the protruding end of the limiting rod (603) is clamped in the fixing groove (604).

5. The multiple fastening screw according to claim 1, characterized in that: The elastic rod (602), the screw body (1) and the screw cap (2) are all provided with openings adapted to the fixing rope (8); one end of the fixing rope (8) passes through the screw cap (2), the screw body (1), the bottom of the empty slot (601) and the elastic rod (602) in sequence and is then fixedly mounted on the protruding end of the limiting rod (603); the fixing member (9) is fixedly mounted on the screw cap (2) near the fixing rope (8) and the fixing member (9) is in a "convex" shape as a whole.

6. A multiple fastening screw according to claim 1, characterized in that: The protective pad (701) is sleeved on the screw body (1) and the top is fixedly mounted on the bottom of the screw cap (2); a plurality of groups of mini blocks (704) are fixedly mounted on the bottom of the protective pad (701) and the bottom of the mini blocks (704) has a certain curvature; the specific materials of the mini blocks (704) and the protective pad (701) are both soft rubber.

7. The multiple fastening screw according to claim 1, characterized in that: A plurality of groups of elastic blocks (703) are fixedly installed in the cavity (702), and the elastic blocks (703) are elliptical in shape as a whole. The specific material of the elastic blocks (703) is elastic sponge.

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