Stable adjustable gripping apparatus circular tube connecting piece

Abstract

The utility model discloses a stable adjustable gripping apparatus circular tube connecting piece which comprises a connecting piece body, circular tube bodies are arranged at the two ends of the connecting piece body, a shaft pin is arranged at the joint of one side of an upper clamping block and one side of a lower clamping block, and fixing bolts are arranged on the other side of the upper clamping block and the other side of the lower clamping block. And a fixing nut is arranged above the fixing bolt. Through the arrangement of the upper clamping block and the lower clamping block and the clamping force of the upper clamping block and the lower clamping block, the connecting part body and the connecting part of the round pipe are tightly fixed together, the connecting part is effectively prevented from loosening or falling off in the using process, the sealing gasket can be tightly attached to the connecting face under the extrusion of the upper clamping block and the lower clamping block, and the sealing effect is good. And moreover, the upper clamping block and the lower clamping block can be clamped and fixed according to different connection requirements and the sizes of the round pipes, and the high adaptability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of round pipe connectors, in particular to a stable and adjustable gripper round pipe connector. Background Art

[0002] Connectors are elements used to connect different objects or components. Connectors can firmly connect two or more objects together to ensure the stability and integrity of the structure. Connectors can easily assemble multiple round tubes into a complete system or structure. The design of connectors allows round tubes to be connected quickly and accurately without complicated welding or other permanent connection methods.

[0003] When the existing connectors are connected to the round pipe, most of them are threadedly connected by opening internal and external threads on the round pipe and the connector, or fixedly connected by welding. However, the threaded connection has poor sealing performance, and the welding connection is not convenient for disassembly of the pipe and the connector.

[0004] For example, a round tube connector for a display stand disclosed in announcement number CN210034076U, the connector in this patent is only connected by threads, which may not provide sufficient connection strength, making the connection not stable enough, especially in high pressure, high vibration or high temperature environment, the threaded connection may become loose, resulting in the joint being easy to loosen and leak, thereby causing the connection to be loose and poorly sealed, and the size of the connector joint is fixed, and it can only be connected to round tubes with the same or compatible thread size, and lacks the ability to make fine adjustments or adapt to different size changes during the connection process.

[0005] Therefore, it is necessary to invent a stable and adjustable gripper round tube connector to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a stable and adjustable gripper round pipe connector to solve the problems of poor stability of the connection and inability to adjust according to the size of the round pipe in the technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stable and adjustable gripper round tube connector, comprising a connector body, a round tube body, an upper clamping block and a lower clamping block, the round tube body is arranged at both ends of the connector body, the end face of the connector body is provided with a groove, a connecting piece is arranged inside the groove, one end of the connecting piece is fixedly connected with an arc piece, the internal thread of the arc piece is connected with a connecting pipe, an upper clamping block and a lower clamping block are arranged on the outside of the connection between the arc piece and the round tube body, an axle pin is arranged at the connection on one side of the upper clamping block and the lower clamping block, a fixing bolt is arranged on the other side of the upper clamping block and the lower clamping block, and a fixing nut is arranged above the fixing bolt.

[0008] Preferably, the connecting plate and the arc plate are designed in an annular structure, the connecting plate is divided into four equal fan-shaped plates, the arc plate is divided into four fan-shaped plates the same as the connecting plate, the size of the connecting plate is smaller than the size of the groove, and the arc plate is divided into four fan-shaped plates so that the arc plate can be expanded and contracted according to the size of the circular tube and adapt to circular tubes of different diameters.

[0009] Preferably, a spring is fixedly connected between the top end of the connecting piece and the inner top surface of the groove, and a plurality of the springs are provided, and the plurality of springs are evenly distributed in a circular array. The spring is used to provide elastic force to ensure that the connecting piece can maintain a certain initial shape when no external force is applied, and during the connection process, the spring can provide additional clamping force to enhance the stability of the connection.

[0010] Preferably, the end face of the connecting pipe is fixedly connected to the end face of the circular tube body by welding, and the connecting pipe is communicated with the circular tube body. The fixed connection ensures a tight connection between the connecting pipe and the circular tube body to prevent leakage.

[0011] Preferably, the inner wall of the arc-shaped piece is provided with an internal thread, and the outer wall of the connecting pipe is provided with an external thread, the internal thread matches the external thread, and the arc-shaped piece is tightly combined with the connecting pipe through threaded connection, thereby ensuring the stability and sealing of the connection.

[0012] Preferably, the upper clamping block and the lower clamping block are hingedly connected, and the upper clamping block and the lower clamping block are designed in a semicircular arc shape. The hinge connection allows the upper clamping block and the lower clamping block to move relative to each other, which is convenient for adjusting and clamping the round tube.

[0013] Preferably, the fixing bolt and the fixing nut are threadedly connected, and the fixing bolt passes through the bottom surface of the lower clamping block to the top surface of the upper clamping block. The outer wall thread of the fixing bolt matches the inner wall thread of the fixing nut. The clamping force can be easily adjusted by rotating the fixing nut, which is suitable for round tubes of different sizes and materials.

[0014] Preferably, the inner walls of the upper clamping block and the lower clamping block are provided with sealing gaskets, the sealing gaskets are made of rubber material, the sealing gaskets are fixed to the inner wall surfaces of the upper clamping block and the lower clamping block by adhesive, the sealing gaskets are tightly fitted to the outer walls of the arc sheet and the circular tube body, and the sealing gaskets are used to enhance the sealing of the connection to prevent liquid or gas leakage.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. Through the arrangement of the connecting piece and the arc-shaped piece, the connecting piece is arranged inside the groove, and the elastic force of the spring can make the connecting piece and the arc-shaped piece fixedly connected thereto have a certain degree of tension and relaxation, allowing fine adjustment according to the size and shape of the round tube when connecting the round tube, ensuring that the arc-shaped piece and the round tube fit closely, reducing the gap, and improving the stability and sealing of the connection;

[0017] 2. Through the setting of the upper clamping block and the lower clamping block, the clamping force of the upper clamping block and the lower clamping block can tightly fix the connector body and the round tube connection together, effectively preventing the connection from loosening or falling off during use. Under the compression of the upper clamping block and the lower clamping block, the sealing gasket can fit tightly to the connection surface to form a good sealing effect. The upper clamping block and the lower clamping block can also be clamped and fixed according to different connection requirements and round tube sizes, and have strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the exploded three-dimensional structure of the connector body and the round tube body of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the circular tube body of the utility model;

[0021] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the groove and the connecting piece of the utility model;

[0022] Figure 5 For the utility model Figure 4 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the upper clamping block and the lower clamping block of the utility model.

[0024] Description of reference numerals:

[0025] 1. Connector body; 2. Round tube body; 3. Groove; 4. Connecting piece; 5. Spring; 6. Arc-shaped piece; 7. Connecting pipe; 8. External thread; 9. Internal thread; 10. Upper clamping block; 11. Lower clamping block; 12. Axis pin; 13. Fixing bolt; 14. Fixing nut; 15. Sealing gasket. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-6A stable and adjustable gripper round tube connector is shown, comprising a connector body 1, a round tube body 2 is arranged at both ends of the connector body 1, a groove 3 is opened on the end face of the connector body 1, a connecting piece 4 is arranged inside the groove 3, an arc piece 6 is fixedly connected to one end of the connecting piece 4, the inner thread of the arc piece 6 is connected to a connecting pipe 7, an upper clamping block 10 and a lower clamping block 11 are arranged on the outer side of the connection between the arc piece 6 and the round tube body 2, an axle pin 12 is arranged at the connection on one side of the upper clamping block 10 and the lower clamping block 11, a fixing bolt 13 is arranged on the other side of the upper clamping block 10 and the lower clamping block 11, and a fixing nut 14 is arranged above the fixing bolt 13.

[0028] The connecting piece 4 and the arc-shaped piece 6 are designed in an annular structure. The connecting piece 4 is divided into four equal sector-shaped pieces, and the arc-shaped piece 6 is divided into four sector-shaped pieces identical to the connecting piece 4. The size of the connecting piece 4 is smaller than the size of the groove 3. The top of the connecting piece 4 is fixedly connected to the top surface of the inner part of the groove 3 with a spring 5. There are multiple springs 5, and the multiple springs 5 ​​are evenly distributed in an annular array. The end face of the connecting pipe 7 is fixedly connected to the end face of the circular tube body 2 by welding. The connecting pipe 7 is connected to the circular tube body 2. The inner wall of the arc-shaped piece 6 is provided with an internal thread 9, and the outer wall of the connecting pipe 7 is provided with an external thread 8. The internal thread 9 cooperates with the external thread 8, and the upper clamping block 10 There is a hinge connection between the upper clamping block 10 and the lower clamping block 11. The upper clamping block 10 and the lower clamping block 11 are designed in a semicircular arc shape. The fixing bolt 13 and the fixing nut 14 are threadedly connected. The fixing bolt 13 passes through the bottom surface of the lower clamping block 11 to the top surface of the upper clamping block 10. The outer wall thread of the fixing bolt 13 matches the inner wall thread of the fixing nut 14. The inner walls of the upper clamping block 10 and the lower clamping block 11 are provided with sealing gaskets 15. The sealing gaskets 15 are made of rubber material. The sealing gaskets 15 are fixedly attached to the inner wall surfaces of the upper clamping block 10 and the lower clamping block 11 by adhesive. The sealing gaskets 15 are tightly fitted to the outer walls of the arc sheet 6 and the circular tube body 2.

[0029] The connecting piece 4 is designed as four equal sector-shaped pieces, and the top of each sector-shaped piece is fixed inside the groove 3 by a plurality of springs 5, so that the connecting piece 4 can be extended and retracted according to the size of the circular tube body 2. When the connecting piece 4 is squeezed by an external force, the spring 5 will be compressed; when the external force disappears, the spring 5 will push the connecting piece 4 to restore its original state. Corresponding to the connecting piece 4, the arc-shaped piece 6 is also designed as four identical sector-shaped pieces, and each arc-shaped piece 6 is fixed at one end of the connecting piece 4, so as to ensure that when the connecting piece 4 is extended and retracted, the arc-shaped piece 6 can follow the Movement, through the cooperation of the internal thread 9 and the external thread 8, the arc piece 6 can be tightly fixed on the connecting pipe 7 to form a stable connection structure, the upper clamping block 10 and the lower clamping block 11 are connected together by a hinge, and can be opened and closed around the circular tube body 2. Both are designed with a semicircular arc structure. When they are closed, they can fit tightly on the outer wall of the circular tube body 2, and by rotating the fixing nut 14, the clamping force between the upper clamping block 10 and the lower clamping block 11 can be adjusted to adapt to circular tubes of different sizes and materials.

[0030] Working principle of this utility model:

[0031] Refer to the instruction manual Figure 1-6 When using the utility model, firstly, it is necessary to connect the two round tube bodies 2 through the connector body 1, thread the connecting tube 7 on the round tube body 2 into the arc-shaped piece 6, align the inner wall of the arc-shaped piece 6 with the outer wall of the connecting tube 7, and rotate the connecting tube 7 to make its outer thread 8 and the inner thread 9 of the arc-shaped piece 6 fit tightly, and the connecting piece 4 will expand and contract according to the diameter of the round tube. When the diameter of the round tube is large, the connecting piece 4 and the arc-shaped piece 6 will be stretched outward, and the spring 5 will be compressed. When the diameter of the round tube is small, the spring 5 will push the connecting piece 4 to expand and contract. The sheet 4 and the arc-shaped sheet 6 shrink inward to adapt to the size of the circular tube, so that the arc-shaped sheet 6 is tightly connected to the connecting tube 7 to form a stable connection structure, and then the upper clamping block 10 and the lower clamping block 11 are opened and closed around the circular tube body 2 to make it fit tightly on the outer wall of the circular tube body 2. Finally, the tightness of the fixing bolt 13 is adjusted by rotating the fixing nut 14, so as to achieve a stable clamping of the circular tube body 2, and the sealing gasket 15 fits tightly on the outer wall of the arc-shaped sheet 6 and the circular tube body 2 to ensure the sealing performance of the connection.

Claims

1. A stable and adjustable gripper round tube connector, comprising a connector body (1), a round tube body (2), an upper clamping block (10) and a lower clamping block (11), characterized in that: A circular tube body (2) is provided at both ends of the connector body (1), a groove (3) is provided on the end surface of the connector body (1), a connecting piece (4) is provided inside the groove (3), one end of the connecting piece (4) is fixedly connected to an arc-shaped piece (6), the inner thread of the arc-shaped piece (6) is connected to a connecting pipe (7), an upper clamping block (10) and a lower clamping block (11) are provided on the outer side of the connection between the arc-shaped piece (6) and the circular tube body (2), an axle pin (12) is provided at one side of the connection between the upper clamping block (10) and the lower clamping block (11), a fixing bolt (13) is provided on the other side of the upper clamping block (10) and the lower clamping block (11), and a fixing nut (14) is provided above the fixing bolt (13).

2. A stable and adjustable gripper round pipe connector according to claim 1, characterized in that: The connecting piece (4) and the arc-shaped piece (6) are designed in an annular structure. The connecting piece (4) is divided into four equal sector-shaped pieces. The arc-shaped piece (6) is divided into four sector-shaped pieces identical to the connecting piece (4). The size of the connecting piece (4) is smaller than the size of the groove (3).

3. A stable and adjustable gripper round pipe connector according to claim 2, characterized in that: A spring (5) is fixedly connected between the top end of the connecting piece (4) and the inner top surface of the groove (3), and a plurality of the springs (5) are provided, and the plurality of the springs (5) are evenly distributed in a ring-shaped array.

4. A stable and adjustable gripper round pipe connector according to claim 1, characterized in that: The end surface of the connecting pipe (7) is fixedly connected to the end surface of the circular tube body (2) by welding, and the connecting pipe (7) is in communication with the circular tube body (2).

5. A stable and adjustable gripper round pipe connector according to claim 1, characterized in that: The inner wall of the arc-shaped sheet (6) is provided with an internal thread (9), and the outer wall of the connecting pipe (7) is provided with an external thread (8), and the internal thread (9) matches the external thread (8).

6. A stable and adjustable gripper round pipe connector according to claim 1, characterized in that: The upper clamping block (10) and the lower clamping block (11) are hingedly connected, and the upper clamping block (10) and the lower clamping block (11) are designed to be semicircular arc structures.

7. A stable and adjustable gripper round pipe connector according to claim 1, characterized in that: The fixing bolt (13) and the fixing nut (14) are threadedly connected. The fixing bolt (13) passes through the bottom surface of the lower clamping block (11) to the top surface of the upper clamping block (10). The outer wall thread of the fixing bolt (13) matches the inner wall thread of the fixing nut (14).

8. A stable and adjustable gripper round pipe connector according to claim 7, characterized in that: The inner walls of the upper clamping block (10) and the lower clamping block (11) are provided with sealing gaskets (15), and the sealing gaskets (15) are made of rubber material. The sealing gaskets (15) are fixedly adhered to the inner wall surfaces of the upper clamping block (10) and the lower clamping block (11) by means of adhesive, and the sealing gaskets (15) are tightly fitted to the outer walls of the arc-shaped sheet (6) and the circular tube body (2).

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