A plumbing butt joint device

Abstract

This utility model relates to the field of pipeline construction technology, and in particular to a water supply and drainage pipeline installation and docking device, including a base and a hydraulic power unit. A ring bracket is installed on the base via a lifting mechanism. At least three sets of radial adjustment arms are symmetrically arranged on the inner ring of the ring bracket. Each set of radial adjustment arms has an adaptive clamping module hinged to its end. The adaptive clamping module includes an arc-shaped clamping block. A pressure sensor and a ball bearing array are embedded on the inner side of the arc-shaped clamping block. Its back is connected to the radial adjustment arm via a universal joint. This utility model uses a ring bracket in conjunction with multiple sets of adaptive clamping modules with universal joints to achieve closed-loop clamping through pressure sensor feedback. It can firmly grip the pipeline and allow the pipeline to rotate slightly and move axially within a controlled range through the ball bearing array, realizing a "flexible" and stable grip on the pipeline and greatly reducing the operational risks during the adjustment process.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, and in particular to a water supply and drainage pipeline installation and connection device. Background Technology

[0002] Drainage pipes are mainly responsible for draining rainwater, sewage, and agricultural irrigation. Drainage pipes are divided into plastic drainage pipes, concrete pipes (CP), and reinforced concrete pipes. The drainage pipe material commonly used in buildings is PE (polyethylene). Due to its high strength, corrosion resistance, and non-toxicity, PE material is widely used in the water pipe manufacturing field. Because it does not rust, it is an ideal pipe material to replace ordinary iron water pipes.

[0003] According to Chinese Patent Publication No. CN215363652U, a patent document entitled "A docking device for water supply and drainage pipeline installation" discloses that the docking device in the prior art is unstable in the center of gravity of the pipeline during docking, and it is difficult to accurately adjust the posture in the air. It often requires multiple people to pry it repeatedly, resulting in low docking efficiency and safety risks. Moreover, the docking device in the prior art cannot guarantee that the two pipe sections are strictly coaxial. Forced docking will cause uneven compression of the sealing ring and damage to the socket, leaving potential leakage hazards in the pipeline system. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of low efficiency, poor precision and easy damage to pipe fittings in the existing technology of pipe connection, and to propose a water supply and drainage pipe installation and connection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A water supply and drainage pipeline installation and docking device includes a base and a hydraulic power unit. A ring-shaped bracket is mounted on the base via a lifting mechanism. At least three sets of radial adjusting arms are symmetrically arranged on the inner ring of the ring-shaped bracket. Each set of radial adjusting arms has an adaptive clamping module hinged to its end. The adaptive clamping module includes an arc-shaped clamping block. A pressure sensor and a ball bearing array are embedded on the inner side of the arc-shaped clamping block. Its back is connected to the radial adjusting arm via a universal joint. Multiple laser ranging heads are also arranged around the ring-shaped bracket. The hydraulic power unit is connected to the lifting mechanism and the drive cylinders of the radial adjusting arms.

[0006] Preferably, the lifting mechanism is a scissor lift platform or a hydraulic cylinder direct-drive structure.

[0007] Preferably, the inner lining of the arc-shaped clamp is made of engineering plastic or rubber, and its curvature matches the outer diameter of the pipe to be connected.

[0008] Preferably, the ball array consists of multiple wear-resistant ceramic balls embedded in the arc-shaped clamping block.

[0009] Preferably, the outer ring of the annular support is provided with a horizontal bubble.

[0010] Preferably, the number of laser rangefinders is no less than four, and they are evenly distributed on the ring bracket.

[0011] Compared with the prior art, the present invention has the following advantages: 1. This utility model adopts a ring bracket in conjunction with multiple sets of adaptive clamping modules with universal joints. Closed-loop clamping is achieved through pressure sensor feedback. It can not only firmly grip the pipeline, but also allow the pipeline to rotate slightly and move axially within a controlled range through the ball array. This achieves "flexible" and stable gripping of the pipeline, greatly reducing the operational risks during the adjustment process.

[0012] 2. This utility model uses multiple laser rangefinders arranged around a ring bracket to detect the distance and angle deviation between the end face of the clamped pipe and the end face of the target pipe section in real time. The operator can use this data to precisely control the radial adjustment arm to make micro-adjustments, ensuring that the two pipe sections achieve extremely high coaxiality requirements before docking. This fundamentally avoids damage to the pipe opening and sealing ring caused by forced docking due to misalignment, and ensures the quality of the interface. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a water supply and drainage pipeline installation and docking device proposed in this utility model; Figure 2 This is a front view of a water supply and drainage pipeline installation and docking device proposed in this utility model; Figure 3 This is a side view of a water supply and drainage pipeline installation and docking device proposed in this utility model; Figure 4 This is a partial enlarged view of area A of a water supply and drainage pipeline installation and docking device proposed in this utility model.

[0014] In the diagram: 1. Base; 2. Hydraulic power unit; 3. Lifting mechanism; 4. Ring bracket; 5. Radial adjusting arm; 6. Adaptive clamping module; 7. Arc-shaped clamp; 8. Pressure sensor; 9. Ball array; 10. Universal joint; 11. Laser rangefinder; 12. Drive cylinder; 13. Bubble level. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-4A water supply and drainage pipeline installation and docking device includes a base 1 and a hydraulic power unit 2. The base 1 is welded from H-beams and is equipped with heavy-duty casters and adjustable outriggers at the bottom for easy movement and fixing. The hydraulic power unit 2 is integrated on the base 1 and includes a motor, an oil pump, a control valve group and an oil tank.

[0017] A ring bracket 4 is installed on the base 1 via a lifting mechanism 3. The lifting mechanism 3 is a scissor lift platform or a hydraulic cylinder direct-drive structure. The lifting mechanism 3 adopts a scissor structure, with a maximum lifting stroke of 1.2 meters and a load-bearing capacity of not less than 3 tons. It is driven by two parallel hydraulic cylinders and can smoothly lift the ring bracket 4 to the required height. The ring bracket 4 is made of high-strength aluminum alloy casting.

[0018] The outer ring of the ring bracket 4 is equipped with a level bubble 13. Move the device to the working position between the two pipes to be connected, lower the four casters to ensure the stability of the base, start the hydraulic power unit 2, operate the lifting mechanism 3 to adjust the ring bracket 4 to the center height of the pipe, observe the level bubble 13, and adjust the height of the individual casters to make the ring bracket 4 horizontal.

[0019] The inner ring of the ring support 4 is symmetrically provided with at least three sets of radial adjustment arms 5. Each set of radial adjustment arms 5 is hinged to an adaptive clamping module 6 at its end. The inner lining of the arc-shaped clamp 7 is made of engineering plastic or rubber, and its curvature matches the outer diameter of the pipe to be connected. The adaptive clamping module 6 includes an arc-shaped clamp 7. The inner wall of the arc-shaped clamp 7 is adhered with a 10mm thick polyurethane rubber lining to protect the outer anti-corrosion layer of the pipe.

[0020] The inner side of the arc-shaped clamp 7 is embedded with a pressure sensor 8 and a ball array 9. Its back is connected to the radial adjustment arm 5 through a universal joint 10. The ball array 9 is composed of multiple wear-resistant ceramic balls embedded in the arc-shaped clamp 7.

[0021] The hydraulic power unit 2 is connected to the lifting mechanism 3 and the drive cylinder 12 of the radial adjusting arm 5. The four sets of radial adjusting arms 5 are operated to retract inward synchronously, so that the arc-shaped clamping blocks 7 of the adaptive clamping module 6 form a complete clamping circle. The device is moved to the bottom of the pipe to be adjusted, so that the pipe is located at the center of the clamping circle. The radial adjusting arm 5 is slowly extended so that the arc-shaped clamping block 7 contacts the outer wall of the pipe. When the pressure sensor 8 shows that the preset clamping force has been reached, the extension stops, and the pipe clamping is completed.

[0022] The ring bracket 4 is also equipped with multiple laser rangefinders 11, which are used to accurately measure the gap between the end face of the clamped pipe and the end face of the pipe to be docked in front.

[0023] By observing the readings of the laser rangefinder 11, the system automatically calculates and displays the tilt angle and center offset of the pipe end face. If there is a vertical deviation, the height is adjusted by controlling the micro-motion function of the lifting mechanism 3. If there is a horizontal or angular deviation, fine adjustment is made by controlling the extension and retraction of a single or adjacent radial adjustment arm 5. During this process, the universal joint 10 allows the arc-shaped clamp 7 to adapt to the pipe posture, and the ball array 9 allows the pipe to rotate slightly. The measurement and adjustment process is repeated until the difference in readings of all laser rangefinders 11 is within the allowable range.

[0024] While maintaining the clamped state, slowly push the entire device or use auxiliary equipment to move the pipe toward the docking end. During the docking process, monitor the readings of the laser rangefinder 11 and the data of the pressure sensor 8 in real time to ensure that the alignment is maintained during the docking process. When the pipe sockets begin to contact, reduce the pushing speed appropriately and use the pipe's own weight and slight thrust to complete the final docking.

[0025] It should be noted that the specific model and specifications to be adopted need to be determined based on the actual specifications of the device. The specific selection and calculation methods use existing technology in this field, so they will not be elaborated here.

[0026] The functional principle of this utility model can be explained through the following operation methods: The device includes a base 1 and a hydraulic power unit 2. A ring bracket 4 is mounted on the base 1 via a lifting mechanism 3. A radial adjustment arm 5 is set on the inner ring of the ring bracket 4, and its end is connected to an adaptive clamping module 6 via a universal joint 10. A pressure sensor 8 and a ball array 9 are set on the inner side of the module. A laser rangefinder 11 is arranged around the ring bracket 4. During operation, the device moves between two pipes to be docked. The lifting mechanism 3 adjusts the height, and the radial adjustment arm 5 extends to make the adaptive clamping module 6 clamp one side of the pipe. The clamping force is monitored by the pressure sensor 8. The operator fine-tunes the radial adjustment arm 5 based on the multi-point distance data fed back by the laser rangefinder 11 to achieve precise alignment of the pipes. Finally, the precise docking can be completed by using the weight of the pipes or a slight thrust.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water supply and drainage pipeline installation and docking device, comprising a base (1) and a hydraulic power unit (2), characterized in that, A ring bracket (4) is installed on the base (1) via a lifting mechanism (3). At least three sets of radial adjustment arms (5) are symmetrically arranged on the inner ring of the ring bracket (4). An adaptive clamping module (6) is hinged to the end of each set of radial adjustment arms (5). The adaptive clamping module (6) includes an arc-shaped clamp (7). A pressure sensor (8) and a ball array (9) are embedded on the inner side of the arc-shaped clamp (7). Its back is connected to the radial adjustment arm (5) via a universal joint (10). Multiple laser rangefinders (11) are also arranged around the ring bracket (4). The hydraulic power unit (2) is connected to the lifting mechanism (3) and the drive cylinder (12) of the radial adjustment arm (5).

2. The water supply and drainage pipeline installation and docking device according to claim 1, characterized in that, The lifting mechanism (3) is a scissor lift platform or a hydraulic cylinder direct-drive structure.

3. The water supply and drainage pipeline installation and docking device according to claim 1, characterized in that, The inner lining of the arc-shaped clamp (7) is made of engineering plastic or rubber, and its curvature matches the outer diameter of the pipe to be connected.

4. The water supply and drainage pipeline installation and docking device according to claim 1, characterized in that, The ball array (9) consists of multiple wear-resistant ceramic balls embedded in the arc-shaped clamp (7).

5. A water supply and drainage pipeline installation and docking device according to claim 1, characterized in that, The outer ring of the annular support (4) is provided with a horizontal bubble (13).

6. The water supply and drainage pipeline installation and docking device according to claim 1, characterized in that, The number of laser rangefinders (11) is no less than 4, and they are evenly distributed on the ring bracket (4).

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