Stainless steel square tube and round tube connecting piece

Abstract

The utility model relates to the technical field of connecting pieces, in particular to a stainless steel square tube and round tube connecting piece which comprises a connecting tube, a round tube connecting portion is arranged on one side of the connecting tube and comprises a round tube connecting cylinder, a square tube connecting portion is arranged on the other side of the connecting tube and comprises a square tube connecting cylinder, and a round tube connecting cylinder is arranged on the square tube connecting portion. And an adjusting cylinder is slidably connected into the square pipe connecting cylinder, springs are fixedly connected to the two sides of the adjusting cylinder, second limiting blocks are fixedly connected to the surfaces of the springs, and clamping blocks are fixedly connected to the surfaces of the second limiting blocks. The clamping assembly I and the clamping assembly II are arranged, a square tube, a circular tube and a connecting piece can be quickly assembled and disassembled, the practicability is high, the adjusting cylinder, the limiting block II, the clamping block and the spring are arranged, the length of the connecting part of the square tube can be adjusted according to needs, and the situation that pipelines are laid again due to the fact that the lengths of the pipelines are not enough is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a stainless steel square tube and round tube connector. Background Technology

[0002] Buried high-voltage power cables are usually installed in communication grid pipes. Communication grid pipes are mostly made of plastic and contain single or multiple channels. Their cross-section is square or rectangular because square pipes have a higher bending section modulus than round pipes. Under the same specifications, they have stronger bending resistance and better protection for buried power cables. However, precisely because of their strong bending resistance, square pipes are mostly straight pipes. For places in underground pipelines where the line needs to bend, it is difficult to achieve bend connections using square pipes. In these places, round pipes are used, and connectors are needed to connect the square pipes and the round pipes.

[0003] Existing stainless steel square tube and round pipe connectors are not convenient for quick installation and disassembly of square tubes and round pipes, reducing the practicality of the connectors. In addition, the existing stainless steel square tube and round pipe connectors cannot be adjusted in length, which means that the pipe cannot be connected to the connector after the position is adjusted, making it inconvenient to use. Therefore, we propose a stainless steel square tube and round pipe connector. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a stainless steel square tube and round pipe connector to solve the problems mentioned in the background art, such as the inconvenience of quick installation and disassembly of the square tube and round pipe, which reduces the practicality of the connector, and the inability to adjust the length of the existing stainless steel square tube and round pipe connector, which makes it difficult to connect the pipe to the connector after the position is adjusted, making it inconvenient to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel square tube and round tube connector, comprising a connecting tube, a round tube connecting part on one side of the connecting tube, the round tube connecting part including a round tube connecting cylinder, threaded rods rotatably connected to both sides of the round tube connecting cylinder, a knob fixedly connected to one end of the threaded rod, a limit block fixedly connected to the other end of the threaded rod, a clamping plate rotatably connected to the surface of the limit block, a square tube connecting part on the other side of the connecting tube, the square tube connecting part including a square tube connecting cylinder, an adjusting cylinder slidably connected inside the square tube connecting cylinder, a moving plate fixedly connected to the outside of the adjusting cylinder, threaded rods rotatably connected to both sides of the moving plate and the adjusting cylinder, a knob fixedly connected to one end of the threaded rod, a pressure plate fixedly connected to the other end of the threaded rod, springs fixedly connected to both sides of the adjusting cylinder, a limit block fixedly connected to the surface of the spring, and a locking block fixedly connected to the surface of the limit block.

[0006] Preferably, the surfaces of the clamping plate and the pressure plate are provided with rubber pads.

[0007] Preferably, the threaded rod, the knob, the limiting block, and the clamping plate constitute a clamping assembly. The clamping assembly is symmetrically arranged on both sides of the circular tube connecting cylinder. Threaded grooves are symmetrically opened on both sides of the circular tube connecting cylinder. The two sets of threaded rods are rotatably connected in the two sets of threaded grooves.

[0008] Preferably, the clamping plate is arc-shaped, and a circular groove is formed on the surface of the clamping plate, and the limiting block is rotatably connected in the circular groove.

[0009] Preferably, the threaded rod II, the knob II, and the pressure plate constitute a clamping assembly II. The clamping assembly II is symmetrically arranged on both sides of the moving plate. Threaded grooves II are opened on both sides of the moving plate and the adjusting cylinder. The two sets of threaded rods II are rotatably connected in the two sets of threaded grooves II respectively.

[0010] Preferably, two sets of the limiting block 2, the locking block and the spring are symmetrically arranged. The adjusting cylinder is inserted into the inside of the square tube connecting cylinder. The two sides of the adjusting cylinder are provided with circular groove 2. The spring is fixedly connected to the inner wall of the circular groove 2. The limiting block 2 is slidably connected in the circular groove 2.

[0011] Preferably, four sets of circular grooves are symmetrically formed on both sides of the square tube connecting cylinder, the radius of the locking block is equal to the radius of the circular grooves, the radius of the limiting block is greater than the radius of the circular grooves, and two sets of square grooves are symmetrically formed on the inner side of the square tube connecting cylinder, the limiting block and the locking block are slidably connected in the square grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This stainless steel square tube and round tube connector is equipped with clamping component one and clamping component two. When the round tube is inserted into the round tube connector, rotating the knobs on both sides causes the threaded rod to rotate, which in turn drives the clamping plate to move through the limiting block, thus clamping and fixing the position of the round tube. When the square tube is inserted into the square tube connector, rotating the knobs on both sides causes the threaded rod to rotate, which moves the pressure plate and presses it against the surface of the square tube, fixing the position of the square tube. It can quickly install and disassemble the square tube and round tube with the connector, which is highly practical. At the same time, it can clamp square tubes and round tubes of different diameters, which is very applicable.

[0014] 2. This stainless steel square tube and round tube connector is equipped with an adjusting cylinder, a limiting block 2, a locking block, and a spring. Pressing the locking block moves it out of the round groove 3 and into the square groove 1. Pulling the moving plate moves the adjusting cylinder inside the square tube connector, and the locking block and limiting block 2 move in the square groove 1, thereby adjusting the length of the square tube connection. Releasing the locking block causes it to be pushed outward by the spring and locked in the round groove 3, thus fixing the adjusted length. The length of the square tube connection can be adjusted as needed, avoiding the need to re-lay the pipe due to insufficient pipe length. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top sectional view of the structure of this utility model;

[0017] Figure 3 This is an exploded sectional view of the circular tube connection part of this utility model;

[0018] Figure 4 This is a dynamic exploded view of the square tube connection part of this utility model;

[0019] Figure 5 This is a top sectional view of the structure of the square tube connecting part of this utility model.

[0020] In the diagram: 1. Connecting pipe; 2. Round pipe connecting part; 21. Round pipe connecting cylinder; 22. Threaded rod one; 23. Knob one; 24. Limiting block one; 25. Clamping plate one; 3. Square pipe connecting part; 31. Square pipe connecting cylinder; 32. Moving plate; 33. Adjusting cylinder; 34. Threaded rod two; 35. Knob two; 36. Pressure plate; 37. Limiting block two; 38. Locking block; 39. Spring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A stainless steel square tube and round tube connector includes a connecting pipe 1. A round tube connecting part 2 is provided on one side of the connecting pipe 1. The round tube connecting part 2 includes a round tube connecting cylinder 21. Threaded rods 22 are rotatably connected to both sides of the round tube connecting cylinder 21. A knob 23 is fixedly connected to one end of the threaded rod 22, and a limit block 24 is fixedly connected to the other end of the threaded rod 22. A clamping plate 25 is rotatably connected to the surface of the limit block 24. A square tube connecting part 3 is provided on the other side of the connecting pipe 1. The square tube connecting part 3 includes a square tube connecting cylinder 31. The interior of the square tube connecting cylinder 31... An adjusting cylinder 33 is slidably connected. A movable plate 32 is fixedly connected to the outside of the adjusting cylinder 33. Threaded rods 34 are rotatably connected to both sides of the movable plate 32 and the adjusting cylinder 33. A knob 35 is fixedly connected to one end of the threaded rod 34, and a pressure plate 36 is fixedly connected to the other end. Springs 39 are fixedly connected to both sides of the adjusting cylinder 33. Limiting blocks 37 are fixedly connected to the surface of the springs 39, and locking blocks 38 are fixedly connected to the surface of the limiting blocks 37. Clamping assembly one and clamping assembly two are provided. When the round tube is inserted into the round tube connecting cylinder 21, it is rotated... The knobs 23 on both sides cause the threaded rod 22 to rotate, which in turn moves the clamping plate 25 through the limiting block 24, clamping and fixing the position of the round tube. The square tube is then inserted into the square tube connecting cylinder 31. Rotating the knobs 35 on both sides causes the threaded rod 34 to rotate, moving the pressure plate 36 and pressing it against the surface of the square tube, fixing its position. This allows for quick installation and disassembly of square tubes and round tubes with connectors, offering high practicality. It can also clamp square tubes and round tubes of different diameters, providing good applicability. An adjusting cylinder 33 and a limiting block 37 are included. The locking block 38 and spring 39 are used to press the locking block 38, which moves it out of the circular groove three and into the square groove one. Pulling the moving plate 32 drives the adjusting cylinder 33 to move inside the square tube connecting cylinder 31. The locking block 38 and the limiting block two 37 move in the square groove one, thereby adjusting the length of the square tube connecting part 3. Releasing the locking block 38, the locking block 38 is pushed outward under the action of the spring 39 and locked in the circular groove three, thereby fixing the adjusted length. The length of the square tube connecting part 3 can be adjusted as needed to avoid the need to re-lay the pipe due to insufficient pipe length.

[0024] Furthermore, the surfaces of the clamping plate 25 and the pressure plate 36 are provided with rubber pads to increase the contact area with the square tube and the round tube, increase the friction, and avoid damage to the surface of the square tube and the round tube.

[0025] Furthermore, the threaded rod 22, the knob 23, the limiting block 24, and the clamping plate 25 constitute a clamping assembly 1. The clamping assembly 1 is symmetrically arranged on both sides of the round tube connecting cylinder 21. Threaded grooves 1 are symmetrically opened on both sides of the round tube connecting cylinder 21. The two sets of threaded rods 22 are rotatably connected in the two sets of threaded grooves 1 respectively. Through the cooperation of the two sets of clamping assemblies 1, the clamping of the round tube is more secure.

[0026] Furthermore, the clamping plate 25 is arc-shaped, and a circular groove is formed on the surface of the clamping plate 25. The limiting block 24 is rotatably connected in the circular groove. When the position of the clamping plate 25 is adjusted by rotating the knob 23, the clamping plate 25 and the limiting block 24 rotate relative to each other, so that the rotation of the knob 23 will not drive the clamping plate 25 to rotate.

[0027] Furthermore, the threaded rod 34, the knob 35, and the pressure plate 36 constitute a clamping assembly 2. The clamping assembly 2 is symmetrically arranged on both sides of the moving plate 32. The moving plate 32 and the adjusting cylinder 33 have threaded grooves on both sides. The two sets of threaded rods 34 are rotatably connected in the two sets of threaded grooves. The two sets of clamping assemblies 2 abut against both sides of the square tube, fixing the square tube in the square tube connecting cylinder 31.

[0028] Furthermore, two sets of limiting blocks 37, locking blocks 38, and springs 39 are symmetrically arranged. The adjusting cylinder 33 is inserted into the square tube connecting cylinder 31. Circular grooves 2 are opened on both sides of the adjusting cylinder 33. The springs 39 are fixedly connected to the inner wall of the circular grooves 2. The limiting blocks 37 are slidably connected in the circular grooves 2. When the locking blocks 38 are pressed, the springs 39 are compressed. After the locking blocks 38 are released, the locking blocks 38 are pushed outward by the springs 39.

[0029] Furthermore, four sets of circular grooves are symmetrically opened on both sides of the square tube connecting cylinder 31. The radius of the locking block 38 is equal to the radius of the circular grooves. The radius of the limiting block 2 37 is greater than the radius of the circular grooves. Two sets of square grooves are symmetrically opened on the inner side surface of the square tube connecting cylinder 31. The limiting block 2 37 and the locking block 38 are slidably connected in the square grooves. The limiting block 2 37 prevents the locking block 38 from moving out of the circular grooves and limits the maximum movement distance of the locking block 38. Pressing the locking block 38 moves it out of the circular grooves and into the square grooves. Pulling the moving plate 32 drives the adjusting cylinder 33 to move inside the square tube connecting cylinder 31. The locking block 38 and the limiting block 2 37 move in the square grooves, thereby adjusting the length of the square tube connecting part 3.

[0030] Working principle: When in use, insert the round tube into the round tube connecting cylinder 21, rotate the knobs 23 on both sides to rotate the threaded rod 22, and then move the clamping plate 25 through the limiting block 24 to clamp and fix the position of the round tube. Press the locking block 38 to move it out of the round groove 3 and into the square groove 1. Pull the moving plate 32 to move the adjusting cylinder 33 inside the square tube connecting cylinder 31. The locking block 38 and the limiting block 2 37 move in the square groove 1 to adjust the length of the square tube connecting part 3. Release the locking block 38, and under the action of the spring 39, the locking block 38 is pushed out and locked in the round groove 3 to fix the adjusted length. Insert the square tube into the square tube connecting cylinder 31, rotate the knobs 2 35 on both sides to rotate the threaded rod 2 34, and move the pressure plate 36 to press against the surface of the square tube to fix the position of the square tube, thus completing the connection between the square tube, the round tube and the connecting parts.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stainless steel square tube and round tube connector, comprising a connecting pipe (1), characterized in that: A circular tube connecting part (2) is provided on one side of the connecting pipe (1). The circular tube connecting part (2) includes a circular tube connecting cylinder (21). Threaded rods (22) are rotatably connected to both sides of the circular tube connecting cylinder (21). A knob (23) is fixedly connected to one end of the threaded rod (22). A limit block (24) is fixedly connected to the other end of the threaded rod (22). A clamping plate (25) is rotatably connected to the surface of the limit block (24). A square tube connecting part (3) is provided on the other side of the connecting pipe (1). The square tube connecting part (3) includes a square tube connecting cylinder (31). (31) has an internal sliding connection to an adjusting cylinder (33), and a movable plate (32) is fixedly connected to the outside of the adjusting cylinder (33). The movable plate (32) and the two sides of the adjusting cylinder (33) are rotatably connected to a threaded rod (34). One end of the threaded rod (34) is fixedly connected to a knob (35), and the other end of the threaded rod (34) is fixedly connected to a pressure plate (36). The two sides of the adjusting cylinder (33) are fixedly connected to springs (39), and the surface of the springs (39) is fixedly connected to a limit block (37). The surface of the limit block (37) is fixedly connected to a locking block (38).

2. The stainless steel square tube and round tube connector according to claim 1, characterized in that: The surfaces of the clamping plate (25) and the pressure plate (36) are provided with rubber pads.

3. The stainless steel square tube and round tube connector according to claim 1, characterized in that: The threaded rod (22), the knob (23), the limiting block (24), and the clamping plate (25) constitute a clamping assembly. The clamping assembly is symmetrically arranged on both sides of the cylindrical tube connecting cylinder (21). Threaded grooves are symmetrically opened on both sides of the cylindrical tube connecting cylinder (21). The two sets of threaded rods (22) are rotatably connected in the two sets of threaded grooves.

4. The stainless steel square tube and round tube connector according to claim 1, characterized in that: The clamping plate (25) is arc-shaped, and a circular groove is provided on the surface of the clamping plate (25). The limiting block (24) is rotatably connected in the circular groove.

5. A stainless steel square tube and round tube connector according to claim 1, characterized in that: The threaded rod (34), the knob (35), and the pressure plate (36) constitute a clamping assembly. The clamping assembly is symmetrically arranged on both sides of the moving plate (32). Threaded grooves are provided on both sides of the moving plate (32) and the adjusting cylinder (33). The two sets of threaded rods (34) are rotatably connected in the two sets of threaded grooves.

6. A stainless steel square tube and round tube connector according to claim 1, characterized in that: Two sets of the limiting block (37), the locking block (38) and the spring (39) are symmetrically arranged. The adjusting cylinder (33) is inserted into the square tube connecting cylinder (31). The two sides of the adjusting cylinder (33) are provided with circular grooves. The spring (39) is fixedly connected to the inner wall of the circular grooves. The limiting block (37) is slidably connected in the circular grooves.

7. A stainless steel square tube and round tube connector according to claim 1, characterized in that: The square tube connecting cylinder (31) has four sets of circular grooves symmetrically opened on both sides. The radius of the locking block (38) is equal to the radius of the circular grooves. The radius of the limiting block (37) is greater than the radius of the circular grooves. The inner side surface of the square tube connecting cylinder (31) has two sets of square grooves symmetrically opened. The limiting block (37) and the locking block (38) are slidably connected in the square grooves.

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