An improved steel pipe connector

Abstract

The present invention discloses an improved steel pipe connector, which belongs to the technical field of connectors. An improved steel pipe connector comprises: a positioning ring connected between two pipes to be connected; wherein the positioning ring is provided with a clamping groove, and the pipe to be connected is inserted into the clamping groove; a connecting sleeve clamped on the positioning ring; wherein both ends of the connecting sleeve are slidably connected to a detection rod, and a detection spring is fixedly connected to the detection rod, and the other end of the detection spring is fixedly connected to the connecting sleeve; the present invention can position the connection of the connecting sleeve through the provided positioning ring and detection rod, ensuring that the connecting sleeve is located between the two pipes to be connected, so that the contact surfaces on both sides of the connecting sleeve are connected and the pressure is similar, and through the sliding of the detection rod and the scale line on it, it is convenient to record the bending of the two ends of the connecting sleeve, and when the connecting sleeve is bent, the sealing effect of the connecting sleeve can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, in particular to an improved steel pipe connector. Background Art

[0002] Steel pipe is a steel product with a hollow section, whose length is much longer than its diameter or circumference. According to the cross-sectional shape, it can be divided into round, square, rectangular and special-shaped steel pipes. According to the material, it can be divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe. According to the purpose, it can be divided into steel pipes for pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; According to the production process, it can be divided into seamless steel pipe and welded steel pipe.

[0003] Connecting refers to connecting two separate objects with a certain object. The steel pipe connector is a device used to connect two steel pipes.

[0004] When using a steel pipe connector, the center of the connector is not conveniently located at the joint of the two steel pipes, resulting in different contact areas of the connector on the two steel pipes, and thus different pressures of the steel pipes on the connector, which can easily cause the connector with a small contact area to bend at the end away from the pipe seam, affecting the sealing effect of the connector. It is also difficult to judge the degree of bending, and thus it is difficult to judge when there is a leak at the pipe seam. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that in the process of using steel pipe connectors in the prior art, the center of the connector is not convenient to be located at the joint of the two steel pipes, resulting in different contact areas of the connectors on the two steel pipes, and then different pressures of the steel pipes on the connectors, which easily causes the connector with a small contact area to bend away from the end of the pipe seam, affecting the sealing effect of the connector, and it is difficult to judge the degree of bending, and thus it is difficult to judge when there is leakage at the pipe seam. An improved steel pipe connector is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An improved steel pipe connector comprises: a positioning ring connected between two pipes to be connected; wherein the positioning ring is provided with a clamping groove, and the pipes to be connected are inserted into the clamping groove; a connecting sleeve clamped on the positioning ring; wherein both ends of the connecting sleeve are slidably connected to a detection rod, a detection spring is fixedly connected to the detection rod, and the other end of the detection spring is fixedly connected to the connecting sleeve.

[0008] Preferably, the connecting sleeve includes two symmetrical connecting half rings, and the two connecting half rings are connected by mounting holes and bolts.

[0009] In order to further improve the sealing performance of the connecting half ring, preferably, a second sealing ring is fitted inside the connecting half ring.

[0010] Preferably, an air storage tank is provided on the connecting half ring, the detection rod is slidably connected in the air storage tank, a hollow extrusion sleeve is fitted in the connecting half ring, the extrusion sleeve is attached to the second sealing ring, and the air storage tank and the hollow part of the extrusion sleeve are connected through a connecting pipe.

[0011] Preferably, a snap ring is fixedly connected to the positioning ring, and the snap ring is inserted into the connecting half ring.

[0012] In order to improve the sealing effect of the positioning ring, preferably, guide rubber rings are provided on both sides of the positioning ring, the guide rubber rings are in contact with the pipe to be connected, and the side of the guide rubber ring away from the pipe to be connected is arranged in an arc shape.

[0013] Preferably, an elastic plate is provided in the positioning ring, the elastic plate is arranged in a V-shape, and the elastic plate extends into the guide rubber ring.

[0014] Preferably, a sliding rod is slidably connected in the positioning ring, the sliding rod is in contact with the elastic plate, and the lower end of the sliding rod is fixedly connected to a compression spring.

[0015] Preferably, first sealing rings are connected to both sides of the positioning ring.

[0016] Preferably, first sealing rings are connected to both sides of the positioning ring, and the end of the first sealing ring close to the sliding rod is arc-shaped. An extrusion block is slidably connected inside the positioning ring, and the extrusion block is wedge-shaped against the sliding rod.

[0017] Compared with the prior art, the present invention provides an improved steel pipe connector with the following beneficial effects:

[0018] The parts not involved in this device are the same as the existing technology or can be implemented by using the existing technology. The present invention can position the connection of the connecting sleeve through the positioning ring and the detection rod, ensuring that the connecting sleeve is located between the two pipes to be connected, so that the contact surfaces on both sides of the connecting sleeve are connected and the pressure is similar, and through the sliding of the detection rod and the scale line on it, it is convenient to record the bending of the two ends of the connecting sleeve, and when the connecting sleeve is bent, the sealing effect of the connecting sleeve can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of an improved steel pipe connector proposed by the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of an improved steel pipe connector proposed by the present invention;

[0021] Figure 3 An improved steel pipe connector proposed by the present invention Figure 2Schematic diagram of the structure of part A;

[0022] Figure 4 An improved steel pipe connector proposed by the present invention Figure 2 Schematic diagram of the structure of part B;

[0023] Figure 5 This is a schematic structural diagram of an extrusion sleeve of an improved steel pipe connector proposed by the present invention;

[0024] Figure 6 This is a structural schematic diagram of a guide rubber ring of an improved steel pipe connector proposed by the present invention;

[0025] Figure 7 This is a structural schematic diagram of the elastic plate of an improved steel pipe connector proposed by the present invention.

[0026] In the figure: 1. Pipe to be connected; 2. Positioning ring; 201. Snap ring; 202. Snap groove; 203. Guide rubber ring; 204. Elastic plate; 205. Sliding rod; 206. First sealing ring; 207. Extrusion block; 208. Extrusion spring; 3. Connecting half ring; 301. Mounting hole; 302. Second sealing ring; 303. Extrusion sleeve; 304. Connecting pipe; 305. Air storage tank; 306. Detection rod; 307. Detection spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example 1:

[0029] Reference Figure 1-Figure 7 , an improved steel pipe connector, comprising: a positioning ring 2 connected between two pipes 1 to be connected; wherein, the positioning ring 2 is provided with a clamping groove 202, and the pipe 1 to be connected is inserted into the clamping groove 202; a connecting sleeve clamped on the positioning ring 2; wherein, both ends of the connecting sleeve are slidably connected to a detection rod 306, and a detection spring 307 is fixedly connected to the detection rod 306, and the other end of the detection spring 307 is fixedly connected to the connecting sleeve, and a first sealing ring 206 is connected to both sides of the positioning ring 2, which can improve the sealing effect of the positioning ring 2;

[0030] When using this device, the positioning ring 2 is provided to pre-connect and pre-stabilize the two pipes 1 to be connected. Then, the connecting sleeve is clamped on the clamping ring 201 of the positioning ring 2 to position the connecting sleeve so that the distance between the connecting sleeve and the two pipes 1 to be connected is the same and the pressure of the connecting pipe 1 on the connecting sleeve is the same.

[0031] When the connecting sleeve is fixed on the pipe 1 to be connected, the pipe 1 to be connected will squeeze the detection rod 306, and the detection rod 306 slides on the connecting sleeve. There is a scale line on the detection rod 306. According to the extended length of the detection rod 306, it can be judged whether the connecting sleeve is bent, thereby ensuring the sealing of the pipe 1 to be connected.

[0032] Example 2:

[0033] Reference Figure 1-Figure 7 , an improved steel pipe connector, comprising: a positioning ring 2 connected between two pipes 1 to be connected; wherein, the positioning ring 2 is provided with a clamping groove 202, and the pipe 1 to be connected is inserted into the clamping groove 202; a connecting sleeve clamped on the positioning ring 2; wherein, both ends of the connecting sleeve are slidably connected to a detection rod 306, and a detection spring 307 is fixedly connected to the detection rod 306, and the other end of the detection spring 307 is fixedly connected to the connecting sleeve, and a first sealing ring 206 is connected to both sides of the positioning ring 2, which can improve the sealing effect of the positioning ring 2;

[0034] Specifically, the connecting sleeve includes two symmetrical connecting half rings 3, and the two connecting half rings 3 are connected by mounting holes 301 and bolts;

[0035] When using this device, the two pipes 1 to be connected can be pre-connected and pre-stabilized by the provided positioning ring 2, and then the connecting half ring 3 is clamped on the clamping ring 201 of the positioning ring 2 to position the connecting half ring 3 so that the distance between the connecting half ring 3 and the two pipes 1 to be connected is the same, and the pressure exerted by the connecting pipe 1 on the connecting half ring 3 is the same;

[0036] When the connecting half ring 3 is fixed on the pipe 1 to be connected, the pipe 1 to be connected will squeeze the detection rod 306, and the detection rod 306 slides on the connecting half ring 3. There are scale lines on the detection rod 306. According to the extended length of the detection rod 306, it can be judged whether the connecting half ring 3 is bent, thereby ensuring the sealing of the pipe 1 to be connected;

[0037] A second sealing ring 302 is fitted inside the connecting half ring 3, which is used to seal between the connecting half ring 3 and the pipe 1 to be connected. It should be noted that the second sealing ring 302 is a whole. During installation, the second sealing ring 302 is first sleeved on the pipe 1 to be connected, and then the connecting half ring 3 is clamped on the second sealing ring 302.

[0038] An air storage tank 305 is provided on the connecting half ring 3, and a detection rod 306 is slidably connected to the air storage tank 305. A hollow extrusion sleeve 303 is fitted into the connecting half ring 3, and the extrusion sleeve 303 is in contact with the second sealing ring 302. The air storage tank 305 and the hollow part of the extrusion sleeve 303 are connected through a connecting pipe 304.

[0039] The extrusion sleeve 303 is a semi-ring sleeve that fits with the connecting semi-ring 3. When the connecting semi-ring 3 is assembled, the extrusion sleeve 303 is in contact with the second sealing ring 302, and when the detection rod 306 slides, the gas in the gas storage tank 305 will be squeezed and discharged into the hollow groove of the extrusion sleeve 303 through the connecting pipe 304, causing the extrusion sleeve 303 to expand and squeeze the second sealing ring 302 to fit tightly with the pipe 1 to be connected.

[0040] A clamping ring 201 is fixedly connected to the positioning ring 2, and the clamping ring 201 is inserted into the connecting half ring 3. When assembling the connecting sleeve, the two connecting half rings 3 are clamped on the clamping ring 201 and locked by bolts.

[0041] Example 3:

[0042] Reference Figure 1-Figure 7 , an improved steel pipe connector, comprising: a positioning ring 2 connected between two pipes 1 to be connected; wherein, the positioning ring 2 is provided with a clamping groove 202, and the pipe 1 to be connected is inserted into the clamping groove 202; a connecting sleeve clamped on the positioning ring 2; wherein, both ends of the connecting sleeve are slidably connected to a detection rod 306, and a detection spring 307 is fixedly connected to the detection rod 306, and the other end of the detection spring 307 is fixedly connected to the connecting sleeve, and a first sealing ring 206 is connected to both sides of the positioning ring 2, which can improve the sealing effect of the positioning ring 2;

[0043] Specifically, the connecting sleeve includes two symmetrical connecting half rings 3, and the two connecting half rings 3 are connected by mounting holes 301 and bolts;

[0044] When using this device, the two pipes 1 to be connected can be pre-connected and pre-stabilized by the provided positioning ring 2, and then the connecting half ring 3 is clamped on the clamping ring 201 of the positioning ring 2 to position the connecting half ring 3 so that the distance between the connecting half ring 3 and the two pipes 1 to be connected is the same, and the pressure exerted by the connecting pipe 1 on the connecting half ring 3 is the same;

[0045] When the connecting half ring 3 is fixed on the pipe 1 to be connected, the pipe 1 to be connected will squeeze the detection rod 306, and the detection rod 306 slides on the connecting half ring 3. There are scale lines on the detection rod 306. According to the extended length of the detection rod 306, it can be judged whether the connecting half ring 3 is bent, thereby ensuring the sealing of the pipe 1 to be connected;

[0046] A guide rubber ring 203 is provided on both sides of the positioning ring 2. The guide rubber ring 203 is in contact with the pipe 1 to be connected. The side of the guide rubber ring 203 away from the pipe 1 to be connected is arranged in an arc shape. When the liquid in the connecting pipe flows, pressure is applied to the guide rubber ring 203, so that the guide rubber ring 203 can be tightly attached to the pipe 1 to be connected.

[0047] Furthermore, when the guide rubber ring 203 is arranged in an arc shape, the guide rubber ring 203 itself has elastic force and can be closely attached to the pipe 1 to be connected.

[0048] An elastic plate 204 is provided inside the positioning ring 2. The elastic plate 204 is arranged in a V-shape and extends into the guide rubber ring 203.

[0049] Specifically, the elastic plate 204 is an elastic steel plate, and the V-shaped angle of the elastic plate 204 is 160-180°. The two ends of the elastic plate 204 can exert an outward force on the guide rubber ring 203, further making the guide rubber ring 203 tightly attached to the pipe 1 to be connected, ensuring the sealing of the pipeline connection.

[0050] A sliding rod 205 is slidably connected inside the positioning ring 2, and the sliding rod 205 is in contact with the elastic plate 204. The lower end of the sliding rod 205 is fixedly connected to a compression spring 208;

[0051] Under the action of the extrusion spring 208, the sliding rod 205 can be pushed upward, and then the sliding rod 205 can push the elastic plate 204 to bend, so that the V-shaped angle of the elastic plate 204 tends to decrease, thereby improving the sealing performance between the guide rubber ring 203 and the pipe 1 to be connected.

[0052] The first sealing ring 206 is connected to both sides of the positioning ring 2. The end of the first sealing ring 206 close to the sliding rod 205 is arc-shaped. The positioning ring 2 is slidably connected to the extrusion block 207. The extrusion block 207 is wedge-shaped against the sliding rod 205.

[0053] When the sliding rod 205 moves upward, the extrusion block 207 will be squeezed by the wedge-shaped surface of the sliding rod 205, so that the extrusion block 207 squeezes the first sealing ring 206, so that the arc-shaped end of the first sealing ring 206 is compressed and the extrusion force is transmitted to the side of the first sealing ring 206 close to the pipe 1 to be connected, further ensuring the sealing between the two pipes 1 to be connected. In addition, when the arc-shaped first sealing ring 206 is squeezed, it can prevent the first sealing ring 206 from bending, and the sealing effect of the first sealing ring 206 is better.

[0054] The present invention can position the connection of the connecting sleeve by providing a positioning ring 2 and a detection rod 306, ensuring that the connecting sleeve is located between the two pipes 1 to be connected, so that the contact surfaces on both sides of the connecting sleeve are connected and are subjected to similar pressures, and through the sliding of the detection rod 306 and the scale lines thereon, it is convenient to record the bending of the two ends of the connecting sleeve, and when the connecting sleeve is bent, the sealing effect of the connecting sleeve can be guaranteed.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An improved steel pipe connector, characterized in that: include: A positioning ring (2) connected between two pipes (1) to be connected; Wherein, the positioning ring (2) is provided with a clamping groove (202), and the pipe to be connected (1) is inserted into the clamping groove (202); A connecting sleeve clamped on the positioning ring (2); Wherein, both ends of the connection sleeve are slidably connected to a detection rod (306), a detection spring (307) is fixedly connected to the detection rod (306), and the other end of the detection spring (307) is fixedly connected to the connection sleeve; Both sides of the positioning ring (2) are provided with guide rubber rings (203), the guide rubber rings (203) are in contact with the pipe to be connected (1), and the side of the guide rubber ring (203) away from the pipe to be connected (1) is arranged in an arc shape; An elastic plate (204) is provided in the positioning ring (2), the elastic plate (204) is arranged in a V-shape, and the elastic plate (204) extends into the guide rubber ring (203); A sliding rod (205) is slidably connected inside the positioning ring (2), the sliding rod (205) is in contact with the elastic plate (204), and the lower end of the sliding rod (205) is fixedly connected to a compression spring (208); The two sides of the positioning ring (2) are connected to a first sealing ring (206), and one end of the first sealing ring (206) close to the sliding rod (205) is arc-shaped. The positioning ring (2) is slidably connected to an extrusion block (207), and the extrusion block (207) is wedge-shaped against the sliding rod (205).

2. The improved steel pipe connector according to claim 1, characterized in that: The connecting sleeve comprises two symmetrical connecting half rings (3), and the two connecting half rings (3) are connected via mounting holes (301) and bolts.

3. The improved steel pipe connector according to claim 2, characterized in that: A second sealing ring (302) is fitted inside the connecting half ring (3).

4. The improved steel pipe connector according to claim 3, characterized in that: The connecting half ring (3) is provided with an air storage groove (305), the detection rod (306) is slidably connected in the air storage groove (305), a hollow extrusion sleeve (303) is fitted in the connecting half ring (3), the extrusion sleeve (303) is in contact with the second sealing ring (302), and the air storage groove (305) and the hollow part of the extrusion sleeve (303) are connected via a connecting pipe (304).

5. The improved steel pipe connector according to claim 2, characterized in that: A snap ring (201) is fixedly connected to the positioning ring (2), and the snap ring (201) is plugged into the connecting half ring (3).

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