A large pipe diameter socket joint water pipeline fast installation equipment

By combining extrusion and rolling units, the problems of laborious and wear-prone installation of rubber rings in ductile iron pipes are solved, achieving efficient and damage-free installation of rubber rings and improving installation efficiency and sealing performance.

CN224335107UActive Publication Date: 2026-06-09CHINA ANENG GRP FIRST ENG BUREAU CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA ANENG GRP FIRST ENG BUREAU CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

During the installation of ductile iron pipes, the installation of the rubber ring is laborious and prone to wear, affecting the sealing performance and installation efficiency.

Method used

The extrusion unit and the rolling unit are used. The extrusion block is driven by a servo motor to extrude the rubber ring into a plum blossom shape. The hydraulic cylinder and the rolling roller are used to roll the rubber ring to ensure that the rubber ring is installed smoothly and fits against the inner wall of the pipe.

Benefits of technology

It improves the efficiency of rubber ring installation, avoids friction damage between the rubber ring and the inner wall of the pipe, and ensures sealing performance and ease of installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of pipeline equipment technology and discloses a rapid installation device for large-diameter socket-type water supply pipelines. It includes a pressing unit and a rolling unit. The pressing unit comprises a fixed plate, linear guides, linear sliders, translation blocks, pressing blocks, driven pins, a servo motor, a turntable, a driving pin, and connecting rods. Four linear guides are fixedly installed on the left side of the fixed plate, and these four linear guides are distributed at equal angles about the center point of the fixed plate. The four pressing blocks of the pressing unit, moving towards the center, press the rubber ring into a quincunx shape, facilitating its installation into the socket groove of the socket-type water supply pipeline, thus improving the efficiency of the pipeline connection. Simultaneously, because the rubber ring is pressed into a quincunx shape, friction between the rubber ring and the inner wall of the socket groove during installation is prevented, avoiding damage to the rubber ring surface.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline equipment technology, specifically a rapid installation device for large-diameter socket-joint water pipelines. Background Technology

[0002] my country's ductile iron pipe industry started in the early 1990s and has developed rapidly with the strong support of the China Urban Water Supply Association. After years of practical use, its safety and practicality have been widely recognized by the water supply industry. In 2008, the domestic annual output reached 2.2 million tons, 11 times that of 1990. As my country is a water-scarce country with over 600 cities facing water shortages and over 200 cities experiencing severe water shortages, the cause of water supply and water conservation is flourishing, and ductile iron pipes have broad development prospects.

[0003] During the installation of ductile iron pipes, special rubber rings are usually used for sealing to ensure the pipe's airtightness. However, with existing technology, the installation of the rubber ring is quite laborious because the outer wall of the rubber ring comes into contact with the inner wall of the socket groove of the ductile iron. At the same time, the friction between the outer wall of the rubber ring and the inner wall of the socket groove of the ductile iron during installation will cause uniform scratches and wear on the outer surface of the rubber ring. Utility Model Content

[0004] This utility model provides a rapid installation device for large-diameter socket-joint water pipelines, which has advantages and solves the problem.

[0005] This utility model provides the following technical solution: a rapid installation device for large-diameter socket-joint water pipelines, including a pressing unit and a rolling unit;

[0006] The extrusion unit includes a fixing plate;

[0007] Four linear guides are fixedly installed on the left side of the fixed plate, and the four linear guides are distributed at equal angles about the center point of the fixed plate.

[0008] A linear slider is slidably mounted on the periphery of a linear guide rail;

[0009] The translation block is fixedly installed on the side of the linear slider away from the fixed plate.

[0010] The extrusion block is fixedly installed on the side of the translation block away from the linear slider.

[0011] Preferably, the extrusion unit further includes:

[0012] The moving pin is fixedly installed at one end of the linear slider near the center of the fixed plate;

[0013] The servo motor is fixedly mounted on the middle of the side of the fixed plate away from the linear guide rail, and its output shaft moves through the inside of the fixed plate.

[0014] Preferably, the extrusion unit further includes:

[0015] The turntable is fixedly mounted on the end of the output shaft of the servo motor;

[0016] The active pins are fixedly installed on the side of the turntable away from the servo motor, and there are four of them. The positions of the four active pins correspond one-to-one with the positions of the four driven pins.

[0017] A connecting rod is rotatably mounted on the outer wall of a driving pin, and the end of the connecting rod away from the driving pin is rotatably connected to the outside of a corresponding driven pin.

[0018] Preferably, the rolling unit includes:

[0019] Support rods are fixedly installed on one side of the fixed plate near the linear guide rail, and there are four of them. The four support rods are arranged in a circumferential array about the center of the fixed plate, and each support rod is located between two adjacent linear guide rails.

[0020] The mounting plate is fixedly installed at the end of the four support rods away from the fixed plate;

[0021] The motor is fixedly mounted on the middle of one side of the mounting plate near the mounting plate, and the output shaft of the motor moves through the interior of the mounting plate.

[0022] Preferably, the rolling unit further includes:

[0023] The U-shaped frame is fixedly installed at the end of the motor's output shaft.

[0024] Two hydraulic cylinders are fixedly installed on opposite sides of the U-shaped frame, and the output rods of the hydraulic cylinders both extend through the interior of the U-shaped frame.

[0025] The wheel frame is fixedly installed at the ends of the output rods of the two hydraulic cylinders;

[0026] The rolling wheels are rotatably mounted inside the two wheel frames.

[0027] Preferably, the rolling unit further includes:

[0028] Linear bearings are fixedly installed on the opposite sides of the U-shaped frame, distributed on the left and right sides respectively.

[0029] The guide post is slidably installed inside the linear bearing, and the guide post moves through the inside of the U-shaped frame and is fixedly connected to the surface of the wheel frame.

[0030] Preferably, two reinforcing rods distributed front to back are fixedly installed on opposite surfaces of the U-shaped frame, and the reinforcing rods are used for internal support of the U-shaped frame.

[0031] Preferably, the device also includes a tracked vehicle located on the side of the extrusion unit away from the rolling unit. Two connecting brackets distributed front and rear are fixedly installed on the side of the tracked vehicle closest to the extrusion unit. The two connecting brackets are fixedly connected to the surface of the fixing plate by bolts.

[0032] Preferably, rubber buffer pads are fixedly installed on the surface of each extrusion block.

[0033] Preferably, a rubber buffer sleeve is fixedly installed on the outer wall of the rolling roller.

[0034] This utility model has the following beneficial effects:

[0035] 1. This utility model uses four extrusion blocks of the extrusion unit that move towards the center to extrude the rubber ring into a plum blossom shape, which facilitates the installation of the rubber ring into the groove of the socket of the water supply pipe, improving the efficiency of pipe connection. At the same time, because the rubber ring is extruded into a plum blossom shape, it will not rub against the inner wall of the socket groove of the water supply pipe during the installation process, thus avoiding damage to the surface of the rubber ring.

[0036] 2. In this utility model, the output rods of two hydraulic cylinders push the two hydraulic cylinders away from each other, thereby driving the two rolling rollers to move together. The movement of the two roller frames is more stable due to the sliding connection between the guide column and the linear bearing. Finally, the outer walls of the two rolling rollers abut against the inner wall of the rubber ring initially installed inside the socket groove of the water supply pipe. Then, the output shaft of the motor drives the U-shaped frame to rotate, further driving the hydraulic cylinders and the roller frames to rotate together. The rotating rolling rollers roll the inner wall of the rubber ring, thereby making the outer wall of the rubber ring fit better with the inner wall of the socket groove of the water supply pipe. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This is a schematic diagram of the extrusion unit and rolling unit in this utility model. Figure 1 ;

[0039] Figure 3 This is a schematic diagram of the extrusion unit and rolling unit in this utility model. Figure 2 ;

[0040] Figure 4 This is a detailed structural diagram of the extrusion unit in this utility model;

[0041] Figure 5In this utility model Figure 4 A magnified structural diagram of part A;

[0042] Figure 6 This is a detailed structural diagram of the rolling unit in this utility model;

[0043] Figure 7 This is a schematic diagram of the extrusion unit extruding the rubber ring in this utility model.

[0044] In the diagram: 100, Extrusion unit; 101, Fixing plate; 102, Linear guide rail; 103, Linear slider; 104, Translation block; 105, Extrusion block; 106, Driven pin; 107, Servo motor; 108, Turntable; 109, Driving pin; 1010, Connecting rod; 200, Rolling unit; 201, Support rod; 202, Mounting plate; 203, Motor; 204, U-shaped frame; 205, Hydraulic cylinder; 206, Wheel frame; 207, Rolling roller; 208, Linear bearing; 209, Guide column; 2010, Reinforcing rod; 300, Tracked vehicle; 301, Connecting angle bracket. Detailed Implementation

[0045] 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.

[0046] Please see Figures 1 to 7 The technical solution provided by the present invention specifically includes the following embodiments:

[0047] A rapid installation device for large-diameter socket-joint water pipelines includes a pressing unit 100 and a rolling unit 200.

[0048] The extrusion unit 100 includes a fixed plate 101, linear guide rails 102, linear sliders 103, translation blocks 104, extrusion blocks 105, driven pins 106, servo motors 107, turntables 108, driving pins 109, and connecting rods 1010. Four linear guide rails 102 are fixedly installed on the left side of the fixed plate 101, and these four linear guide rails are equidistant from the center point of the fixed plate 101. The linear sliders 103 are slidably installed around the periphery of the linear guide rails 102. The translation blocks 104 are fixedly installed on the side of the linear sliders 103 away from the fixed plate 101. The extrusion blocks 105 are fixedly installed on the side of the translation blocks 104 away from the linear sliders 103. All surfaces of the extrusion blocks 105 are fixedly mounted. The device has a rubber buffer pad. The driven pin 106 is fixedly installed at one end of the linear slider 103 near the center of the fixed plate 101. The servo motor 107 is fixedly installed in the middle of the side of the fixed plate 101 away from the linear guide rail 102, and its output shaft moves through the inside of the fixed plate 101. The turntable 108 is fixedly installed at the end of the output shaft of the servo motor 107. The driving pins 109 are fixedly installed on the side of the turntable 108 away from the servo motor 107, and there are four of them. The positions of the four driving pins 109 correspond one-to-one with the positions of the four driven pins 106. The connecting rod 1010 is rotatably installed on the outer wall of the driving pin 109, and the end of the connecting rod 1010 away from the driving pin 109 is rotatably connected to the outside of the corresponding driven pin 106.

[0049] Specifically, the rubber ring is positioned halfway between the four extrusion blocks 105. Then, the servo motor 107 is activated, driving the turntable 108 to rotate via its output shaft. The rotation of the turntable 108 causes the four driving pins 109 to rotate as well. Furthermore, under the connection of the four connecting rods 1010, the four driven pins 106 move closer to the center. As the four driven pins 106 move closer, they also move the extrusion blocks 105. The four extrusion blocks 105, moving towards the center, extrude the rubber ring into a plum blossom shape (as per the instruction manual). Figure 7 As shown in the diagram, this facilitates the installation of the rubber ring into half of the groove inside the socket of the water supply pipe, improving the efficiency of pipe connection. Simultaneously, by squeezing the rubber ring into a plum blossom shape, friction between the rubber ring and the inner wall of the groove during installation is prevented, avoiding damage to the rubber ring surface. After the rubber ring is placed inside the groove, the output shaft of the servo motor 107 rotates in the opposite direction, causing the turntable 108 and four active pins 109 to rotate in reverse. Furthermore, under the connection of the four connecting rods 1010, the four driven pins 106, the squeezing block 105, and the squeezing translation block 104 move outwards, releasing the clamping effect on the rubber ring. The plum blossom-shaped rubber ring gradually returns to a round shape under its own elastic force, bringing its outer wall into contact with the inner wall of the groove, thus initially installing the rubber ring inside the groove of the water supply pipe.

[0050] For further details, please refer to [link / reference]. Figure 6 As shown:

[0051] The rolling unit 200 includes support rods 201, mounting plate 202, motor 203, U-shaped frame 204, hydraulic cylinder 205, wheel frame 206, rolling roller 207, linear bearing 208, and guide column 209. Four support rods 201 are fixedly mounted on the side of the fixed plate 101 near the linear guide rail 102, arranged in a circumferential array around the center of the fixed plate 101. Each support rod 201 is located between two adjacent linear guide rails 102. The mounting plate 202 is fixedly mounted on the end of the four support rods 201 away from the fixed plate 101. The motor 203 is fixedly mounted in the middle of the side of the mounting plate 202 near the fixed plate 101, and the output shaft of the motor 203 extends through the interior of the mounting plate 202. U-shaped frame 204 is fixedly installed at the output shaft end of motor 203. Hydraulic cylinder 205 is fixedly installed on the opposite surface of U-shaped frame 204. There are two hydraulic cylinders 205. The output rods of the hydraulic cylinders 205 move through the interior of U-shaped frame 204. Wheel frame 206 is fixedly installed at the output rod ends of the two hydraulic cylinders 205 respectively. Rolling rollers 207 are rotatably installed inside the two wheel frames 206 respectively. Rubber buffer sleeves are fixedly installed on the outer wall of the rolling rollers 207. Linear bearings 208 are distributed and fixedly installed on the opposite side of U-shaped frame 204. Guide column 209 is slidably installed inside linear bearing 208. The guide column 209 moves through the interior of U-shaped frame 204 and is fixedly connected to the surface of wheel frame 206.

[0052] Specifically, after the rubber ring is initially installed inside the socket groove of the water supply pipe in the socket interface, the output rods of the two hydraulic cylinders 205 push the two hydraulic cylinders 205 away from each other, thereby driving the two rolling rollers 207 to move together. The movement of the two wheel frames 206 is more stable due to the sliding connection between the guide column 209 and the linear bearing 208. Finally, the outer walls of the two rolling rollers 207 abut against the inner wall of the rubber ring initially installed inside the socket groove of the water supply pipe in the socket interface. Then, the output shaft of the motor 203 drives the U-shaped frame 204 to rotate, further driving the hydraulic cylinders 205 and the wheel frames 206 to rotate together with the rolling rollers 207. The rotating rolling rollers 207 roll the inner wall of the rubber ring, thereby making the outer wall of the rubber ring fit better with the inner wall of the socket groove of the water supply pipe in the socket interface.

[0053] For further details, please refer to [link / reference]. Figure 6 As shown:

[0054] Two reinforcing rods 2010 are fixedly installed on opposite surfaces of the U-shaped frame 204, distributed front and rear. The reinforcing rods 2010 are used for internal support of the U-shaped frame 204.

[0055] Specifically, two reinforcing rods 2010 are fixedly installed inside the U-shaped frame 204 to provide internal support for the U-shaped frame 204, thereby improving the overall strength of the U-shaped frame 204 and preventing deformation of the U-shaped frame 204.

[0056] For further details, please refer to [link / reference]. Figure 1 , Figure 2 As shown:

[0057] It also includes a tracked vehicle 300, which is located on the side of the extrusion unit 100 away from the rolling unit 200. Two connecting brackets 301 distributed front and rear are fixedly installed on the side of the tracked vehicle 300 near the extrusion unit 100. The two connecting brackets 301 are fixedly connected to the surface of the fixing plate 101 by bolts.

[0058] Specifically, the extrusion unit 100 and the rolling unit 200 are transported by the tracked vehicle 300 to the installation position of the large-diameter socket interface water pipeline. The tracked vehicle 300 is hydraulically driven, but not limited to hydraulic drive, which is an existing technology. The specific principle will not be described in detail. When the four extrusion blocks 105 that move towards the center extrude the rubber ring into a plum blossom shape, the tracked vehicle 300 transports the extrusion unit 100 and the rolling unit 200 to insert the extruded plum blossom-shaped rubber ring into the socket groove of the socket interface water pipeline.

[0059] In this solution, a rapid installation device for large-diameter socket-joint water pipelines uses a tracked vehicle 300 to transport the extrusion unit 100 and the rolling unit 200 to the installation position of the large-diameter socket-joint water pipeline. The tracked vehicle 300 is hydraulically driven, but not limited to hydraulic drive, which is an existing technology. The specific principle will not be described in detail.

[0060] Subsequently, the staff removed the rubber ring and positioned half of it between the four extrusion blocks 105. Then, the servo motor 107 was activated, driving the turntable 108 to rotate via its output shaft. The rotation of the turntable 108 caused the four driving pins 109 to rotate as well. Further, under the connection of the four connecting rods 1010, the four driven pins 106 moved closer to the center. During this movement, the extrusion blocks 105 moved together, extruding the rubber ring into a plum blossom shape. Then, the tracked vehicle 300, carrying the extrusion unit 100 and the rolling unit 200, inserted the plum blossom-shaped rubber ring into the socket groove of the water pipe. The inner half, because the rubber ring is squeezed into a plum blossom shape, will not rub against the inner wall of the socket groove of the water supply pipe during the process of inserting the rubber ring into the socket groove of the water supply pipe. Then, the output shaft of the servo motor 107 rotates in the opposite direction, driving the turntable 108 and the four active pins 109 to rotate in reverse. Under the connection of the four connecting rods 1010, the four driven pins 106, the extrusion block 105 and the extrusion translation block 104 move to the outside, releasing the clamping effect on the rubber ring. The plum blossom-shaped rubber ring gradually returns to round under its own elastic force, so that its outer wall contacts the inner wall of the socket groove of the water supply pipe, and the rubber ring is initially installed inside the socket groove of the water supply pipe.

[0061] Next, the output rods of the two hydraulic cylinders 205 push the two hydraulic cylinders 205 away from each other, thereby driving the two rolling rollers 207 to move together. The movement of the two wheel frames 206 is more stable due to the sliding connection between the guide column 209 and the linear bearing 208. Finally, the outer walls of the two rolling rollers 207 abut against the inner wall of the rubber ring initially installed inside the socket groove of the water supply pipe of the socket interface. Then, the output shaft of the motor 203 drives the U-shaped frame 204 to rotate, which further drives the hydraulic cylinders 205 and the wheel frames 206 to rotate together with the rolling rollers 207. The rotating rolling rollers 207 roll the inner wall of the rubber ring, thereby making the outer wall of the rubber ring fit better with the inner wall of the socket groove of the water supply pipe of the socket interface.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid installation device for large-diameter socket-joint water pipelines, characterized in that: It includes an extrusion unit (100) and a rolling unit (200); The extrusion unit (100) includes a fixing plate (101); Linear guide rails (102) are fixedly installed on the left side of the fixed plate (101), and there are four of them. The four linear guide rails (102) are distributed at equal angles with respect to the center point of the fixed plate (101). A linear slider (103) is slidably mounted on the periphery of a linear guide rail (102); The translation block (104) is fixedly installed on the side of the linear slider (103) away from the fixed plate (101); The extrusion block (105) is fixedly installed on the side of the translation block (104) away from the linear slider (103).

2. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 1, characterized in that: The extrusion unit (100) further includes: The moving pin (106) is fixedly installed at one end of the linear slider (103) near the center of the fixed plate (101); The servo motor (107) is fixedly installed on the middle of the side of the fixed plate (101) away from the linear guide (102), and its output shaft moves through the interior of the fixed plate (101).

3. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 2, characterized in that: The extrusion unit (100) further includes: The turntable (108) is fixedly mounted on the end of the output shaft of the servo motor (107); The active pins (109) are fixedly installed on one side of the turntable (108) away from the servo motor (107), and there are four of them. The positions of the four active pins (109) correspond one-to-one with the positions of the four driven pins (106). The connecting rod (1010) is rotatably mounted on the outer wall of the driving pin (109), and the end of the connecting rod (1010) away from the driving pin (109) is rotatably connected to the outside of a corresponding driven pin (106).

4. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 3, characterized in that: The rolling unit (200) includes: Support rods (201) are fixedly installed on one side of the fixed plate (101) near the linear guide rail (102), and there are four of them. The four support rods (201) are arranged in a circular array about the center of the fixed plate (101), and each support rod (201) is located between two adjacent linear guide rails (102). The mounting plate (202) is fixedly installed on one end of the four support rods (201) away from the fixing plate (101); The motor (203) is fixedly installed on the middle of one side of the mounting plate (202) near the fixing plate (101), and the output shaft of the motor (203) moves through the interior of the mounting plate (202).

5. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 4, characterized in that: The rolling unit (200) further includes: The U-shaped bracket (204) is fixedly installed at the end of the output shaft of the motor (203); Two hydraulic cylinders (205) are fixedly installed on opposite sides of the U-shaped frame (204). The output rods of the hydraulic cylinders (205) both move through the interior of the U-shaped frame (204). The wheel frame (206) is fixedly installed at the ends of the output rods of the two hydraulic cylinders (205); The rolling rollers (207) are rotatably installed inside the two wheel frames (206).

6. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 5, characterized in that: The rolling unit (200) further includes: Linear bearings (208) are fixedly installed on the opposite sides of the U-shaped frame (204) in a left-right distribution; The guide post (209) is slidably installed inside the linear bearing (208), and the guide post (209) moves through the inside of the U-shaped frame (204) and is fixedly connected to the surface of the wheel frame (206).

7. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 6, characterized in that: Two reinforcing rods (2010) are fixedly installed on opposite surfaces of the U-shaped frame (204), which are distributed front and back. The reinforcing rods (2010) are used for internal support of the U-shaped frame (204).

8. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 7, characterized in that: It also includes a tracked vehicle (300), which is located on the side of the extrusion unit (100) away from the rolling unit (200). Two connecting brackets (301) are fixedly installed on the side of the tracked vehicle (300) close to the extrusion unit (100). The two connecting brackets (301) are fixedly connected to the surface of the fixing plate (101) by bolts.

9. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 8, characterized in that: Rubber buffer pads are fixedly installed on the surface of each extrusion block (105).

10. The rapid installation equipment for large-diameter socket-joint water pipelines according to claim 9, characterized in that: A rubber buffer sleeve is fixedly installed on the outer wall of the rolling roller (207).