Pressure-adjustable leakage-proof conductive fastening screw

Abstract

The pressure-adjustable leakproof conductive fastening screw comprises a first screw rod and a curved block, the inner wall of the first screw rod is connected with a control structure, the upper side and the lower side of the control structure are connected with supports respectively, the control structure comprises a second screw rod, a pressing plate and a circular plate, the outer wall of the second screw rod is in threaded connection with the inner wall of the first screw rod, and the outer wall of the second screw rod is in threaded connection with the curved block. The front face of the second screw is fixedly connected with the rear end face of the pressing plate, the inserting plate rotates after being connected with the inner wall of the circular plate in an inserted mode, the circular plate is stressed to rotate and drives the pressing plate to rotate at the same time, and the rotating pressing plate enables the second screw to gradually rotate towards the inner wall of the first screw till the pressing plate is matched with the front face of the first screw to press the copper wire. According to the anti-leakage conductive fastening screw, the copper wire can be prevented from being wound without being pressed tightly by the pressing plate, the circular plate provides insulation performance through the aluminum oxide ceramic material of the circular plate, electric leakage during screwing is prevented while electric conduction is guaranteed, normal use of the anti-leakage conductive fastening screw is guaranteed, and the use limitation of the anti-leakage conductive fastening screw is eliminated.

Description

Technical Field

[0001] The utility model relates to a leak-proof conductive fastening screw with adjustable pressure, in particular to a leak-proof conductive fastening screw with adjustable pressure. Background Art

[0002] Leak-proof conductive fastening screws are generally made of metal materials, have conductivity and fastening functions, and rely on friction between the contact surface to ensure fastening.

[0003] For example, a conductive loosening screw with the authorization announcement number "CN215110003U" enhances its conductivity through a conductive layer, and forms a close contact with the inner wall of the screw hole through the anti-loosening layer, thereby achieving the purpose of fastening the connection. Even if the screw hole is slightly larger, the threaded section of the screw body can form a stable spiral fixation with the screw hole, thereby ensuring the stability of the assembly structure and achieving the anti-loosening effect. In addition, the head will press the anti-loosening pressure plate on the workpiece, and the anti-loosening pressure plate and the workpiece will be clamped and positioned to enhance the limiting effect, which can further enhance the anti-loosening effect. However, when using the leakage-proof conductive fastening screws, if the copper wire is wrapped around the leakage-proof conductive fastening screws when they are tightened, it will cause pressure, which may easily cause the copper wire to be unable to conduct electricity normally for a long time. After the pressure of the leakage-proof conductive fastening screws is reduced, the leakage-proof conductive fastening screws are likely to loosen and detach, affecting the normal use of the leakage-proof conductive fastening screws and making the leakage-proof conductive fastening screws have usage limitations. Summary of the invention

[0004] The utility model aims to solve the problems existing in the above-mentioned prior art and provides a leak-proof conductive fastening screw with adjustable pressure, thereby ensuring the normal use of the leak-proof conductive fastening screw and eliminating the use limitations of the leak-proof conductive fastening screw.

[0005] The utility model adopts a technical solution to solve its technical problems: this leak-proof conductive fastening screw with adjustable pressure includes a first screw and a curved block, the inner wall of the first screw is connected to a control structure, the upper and lower sides of the control structure are respectively connected to brackets, the control structure includes a second screw, a pressure plate and a circular plate, the outer wall of the second screw is threadedly connected to the inner wall of the first screw, the front face of the second screw is fixedly connected to the rear end face of the pressure plate, and the front face of the pressure plate is fixedly connected to the rear end face of the circular plate.

[0006] For further improvement, the upper and lower sides of the circular plate are respectively fixedly connected to the inner side of the bracket.

[0007] For further improvement, a circular ring is fixedly connected to the front end of the outer wall of the first screw.

[0008] For further improvement, groove plates are fixedly connected to the upper and lower sides of the circular ring respectively.

[0009] Further improvement, the rear end face of the first screw is fixedly connected to the front face of the curved block.

[0010] Further improvement, the front side of the circular plate is processed with a groove.

[0011] The beneficial effect of the utility model is as follows: the utility model, through the control structure, makes the wire wind around the front of the outer wall of the second screw rod, and then the plug plate is plugged into the inner wall of the circular plate and rotates, the circular plate is forced to rotate, and at the same time, the pressure plate rotates, and the rotating pressure plate makes the second screw rod gradually rotate toward the inner wall of the first screw rod, until the pressure plate cooperates with the front side of the first screw rod to press the copper wire, it is not necessary to make the pressure plate press the copper wire to death, as long as it is ensured that the copper wire will not be wound down, to achieve an adjustable pressure function, and the circular plate provides insulation performance through its own alumina ceramic material, ensures conductivity and prevents leakage when screwing, ensures the normal use of the leakage-proof conductive fastening screws, and eliminates the limitations of the use of the leakage-proof conductive fastening screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the connection relationship between the middle ring and the ridge;

[0014] Figure 3 for Figure 1 Schematic diagram of the connection relationship between the medium pressure plate, the circular plate and the bracket;

[0015] Figure 4 for Figure 1 Schematic diagram of the connection structure between the middle circular plate and the groove plate.

[0016] Explanation of the reference numerals: 1. first screw, 2. control structure, 201. second screw, 202. pressure plate, 203. circular plate, 3. circular ring, 4. groove plate, 5. curved block, 6. bracket, 7. ridge. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Embodiment 1:

[0019] Referring to the accompanying drawings: In this embodiment, a leak-proof conductive fastening screw with adjustable pressure includes a first screw rod 1 and a curved block 5. The inner wall of the first screw rod 1 is connected to a control structure 2. The upper and lower sides of the control structure 2 are respectively connected to brackets 6. The control structure 2 includes a second screw rod 201, a pressure plate 202 and a circular plate 203. The outer wall of the second screw rod 201 is threadedly connected to the inner wall of the first screw rod 1. The second screw rod 201 is subjected to force to rotate back and forth on the inner wall of the first screw rod 1. The front face of the second screw rod 201 is fixedly connected to the rear end face of the pressure plate 202. The front face of the pressure plate 202 is fixedly connected to the rear end face of the circular plate 203. The circular plate 203 is made of alumina ceramics.

[0020] Through the control structure 2, the wire is wound around the front of the outer wall of the second screw 201, and then the plug plate is plugged into the inner wall of the circular plate 203 and rotated. The circular plate 203 is rotated under force and at the same time, the pressure plate 202 is rotated. The rotating pressure plate 202 causes the second screw 201 to gradually rotate toward the inner wall of the first screw 1 until the pressure plate 202 cooperates with the front of the first screw 1 to press the copper wire. It is not necessary to use the pressure plate 202 to press the copper wire to death as long as the copper wire is not wound down. In addition, the circular plate 203 provides insulation performance through its own alumina ceramic material, ensures conductivity and prevents leakage during screwing, ensures the normal use of the leakage-proof conductive fastening screws, and eliminates the limitations of the use of leakage-proof conductive fastening screws.

[0021] The upper and lower sides of the circular plate 203 are respectively fixedly connected to the inner side of the bracket 6. The circular plate 203 can be rotated by clamping the bracket 6 on the upper and lower sides with pliers. A circular ring 3 is fixedly connected to the front end of the outer wall of the first screw rod 1. The upper and lower sides of the circular ring 3 are respectively fixedly connected to the groove plate 4. A rod is inserted into the inner wall of the groove plate 4 to facilitate the rotation of the circular ring 3. The rear end face of the first screw rod 1 is fixedly connected to the front face of the curved block 5. The front face of the circular plate 203 is processed with a groove.

[0022] Working principle:

[0023] Leak-proof conductive fastening screws use:

[0024] The curved block 5 is plugged into the connection port. At this time, the rear of the outer wall of the first screw rod 1 is located in front of the connection port. Then the external rod is inserted into the groove plate 4, so that the rod rotates with the groove plate 4. The groove plate 4 is subjected to force to rotate the ring 3. The rotating ring 3 gradually enters the connection port with the first screw rod 1 until the rear of the ring 3 is tightly pressed against the connection.

[0025] Leak-proof conductive fastening screws Leak-proof conductive settings:

[0026] The wire is wound around the front of the outer wall of the second screw rod 201, and then the plug plate is plugged into the inner wall of the circular plate 203 and rotated. The circular plate 203 is rotated under force and at the same time, the pressing plate 202 is rotated. The rotating pressing plate 202 causes the second screw rod 201 to gradually rotate toward the inner wall of the first screw rod 1 until the pressing plate 202 cooperates with the front side of the first screw rod 1 to press the copper wire. It is not necessary to use the pressing plate 202 to press the copper wire to death, as long as the copper wire is not wound down. In addition, the circular plate 203 provides insulation performance through its own alumina ceramic material to ensure conductivity while preventing leakage during screwing.

[0027] Embodiment 2:

[0028] Referring to the accompanying drawings: In this embodiment, an adjustable pressure leak-proof conductive fastening screw also includes a ridge 7, and the rear end faces of the plurality of ridges 7 are all fixedly connected to the outer wall of the ring 3.

[0029] Working principle:

[0030] When the ring 3 rotates, the ridge 7 will rotate with it. The ridge 7 will first contact the connection to form friction. As the ridge 7 continues to rotate, the connection will be damaged to form a groove, so that the ridge 7 and the groove form a limit and cannot be reversed, thereby improving the overall connection stability of the fastening screw.

[0031] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A leak-proof conductive fastening screw with adjustable pressure, comprising a first screw rod (1) and a curved block (5), characterized in that: The inner wall of the first screw rod (1) is connected to a control structure (2), and the upper and lower sides of the control structure (2) are respectively connected to brackets (6); The control structure (2) comprises a second screw (201), a pressure plate (202) and a circular plate (203); the outer wall of the second screw (201) is threadedly connected to the inner wall of the first screw (1); the front face of the second screw (201) is fixedly connected to the rear end face of the pressure plate (202); and the front face of the pressure plate (202) is fixedly connected to the rear end face of the circular plate (203).

2. The leak-proof conductive fastening screw with adjustable pressure according to claim 1 is characterized in that: The upper and lower sides of the circular plate (203) are respectively fixedly connected to the inner side of the bracket (6).

3. The leak-proof conductive fastening screw with adjustable pressure according to claim 1 is characterized in that: A circular ring (3) is fixedly connected to the front end of the outer wall of the first screw rod (1).

4. The leak-proof conductive fastening screw with adjustable pressure according to claim 3 is characterized by: The upper and lower sides of the circular ring (3) are respectively fixedly connected with groove plates (4).

5. The leak-proof conductive fastening screw with adjustable pressure according to claim 1, characterized in that: The rear end face of the first screw rod (1) is fixedly connected to the front face of the curved block (5).

6. The leak-proof conductive fastening screw with adjustable pressure according to claim 1, characterized in that: The front surface of the circular plate (203) is processed with a groove.

Images