Tool for tightly sleeving joint of HDPE (High-Density Polyethylene) pipeline

Abstract

A tool for tightly sleeving an HDPE (high-density polyethylene) pipeline joint relates to the technical field of building machinery and comprises a fixed clamping plate, a movable clamping plate, a guide rail and a progressive tensioner, the fixed clamping plate and the movable clamping plate are used for being clamped with a threaded groove in the outer surface of an HDPE pipeline, the guide rail is connected between the fixed clamping plate and the movable clamping plate, and the progressive tensioner is arranged on the guide rail. The guide rail is provided with a progressive tensioner, and the progressive tensioner is connected with the movable clamping plate. The device is simple in structure and convenient to use, progressive tensioning at the joint of the HDPE pipeline can be achieved, the tensioning process can be effectively controlled through cooperation of a gear and a rack structure, the labor intensity is reduced while the butt joint effect is guaranteed, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of construction machinery technology, specifically to a tool for tightening HDPE pipe joints. Background Technology

[0002] With the widespread application of HDPE plastic pipes in water supply, drainage, and other fluid transportation systems, the demand for fast, reliable, and cost-effective pipe connection methods is constantly increasing. Traditional tightening techniques often require complex tools or equipment, involving using a hand-operated hoist to tighten the joint between two pipes after fixing the pipes in place. These methods suffer from drawbacks such as cumbersome operation, high labor intensity, and unsatisfactory joint tightening quality. Therefore, developing a simple, efficient, and stable tightening tool is crucial for HDPE pipe connections.

[0003] There are three main types of gear-shaft connections: 1. Loose-fitting connection: The gear is mounted on the shaft via bearings and can rotate freely around the shaft, but the shaft itself does not rotate or is not fixedly connected to the gear. 2. Sliding connection: The gear is fitted to the shaft via splines or sliding keys and can slide axially to achieve meshing of different gear pairs. 3. Fixed connection: The gear is fixed to the shaft via keys, interference fits, etc., and both rotate synchronously. Utility Model Content

[0004] This invention discloses a tool for tightening HDPE pipe joints, aiming to solve the problem that traditional tightening techniques in the prior art often require complex tools or equipment. Based on fixing the pipes, a hand-operated hoist is used to tighten the joint of two pipes. These methods have the drawbacks of being cumbersome to operate, labor-intensive, and having unsatisfactory joint tightening quality.

[0005] To achieve the above objectives, the technical solution of this invention is as follows:

[0006] A tool for tightening HDPE pipe joints includes a fixed clamping plate, a movable clamping plate, a guide rail, and a progressive tensioner. Both the fixed clamping plate and the movable clamping plate are used to engage with the threaded grooves on the outer surface of the HDPE pipe. A guide rail connects the fixed clamping plate and the movable clamping plate, and the guide rail is equipped with a progressive tensioner, which is connected to the movable clamping plate.

[0007] Preferably, both the fixed plate and the movable plate are arc-shaped plates that match the shape and size of the threaded groove, and each of the two ends of the arc-shaped plate is integrally formed with a connecting plate.

[0008] Preferably, the connecting plates at both ends of the fixed plate are detachably and fixedly connected to the same side of the two guide rails by bolts, and sliding sleeves are slidably fitted on both guide rails. The connecting plates at both ends of the movable plate are detachably and fixedly connected to the two sliding sleeves by bolts.

[0009] Preferably, the upper end of the guide rail is provided with a rack structure, and the progressive tensioner includes a gear that works with the rack structure and a drive component for driving the gear to rotate. The lower end of the gear passes through a pre-reserved through hole at the top of the sliding sleeve and meshes with the rack structure. The two ends of the central shaft of the gear are fixedly connected to the inner surfaces of the two side walls of the sliding sleeve, respectively.

[0010] Preferably, the driving component includes an inverted U-shaped gear bracket, the lower part of which is provided with a shaft hole that is clearance-fitted with the central shaft, the side wall of the gear bracket is fixedly connected to the gear by a pin, and the top ends of the two gear brackets are fixedly connected to an inverted U-shaped handle, the two free ends of the handle being fixedly connected to the top of the corresponding gear bracket respectively.

[0011] Preferably, the through hole is an elongated through hole, and the length of the elongated through hole is such that the gear rotates within a set angle under the drive of the handle.

[0012] Preferably, the pin passes through the two side walls of the gear bracket and engages with the tooth grooves of the gear.

[0013] The advantages of this new tool for tightening HDPE pipe joints are as follows:

[0014] This new type of structure is simple and easy to use. It can achieve progressive tightening at the HDPE pipe joint. Through the cooperation of gear and rack structure, the tightening process can be effectively controlled. While ensuring the docking effect, it reduces labor intensity and improves work efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this invention, the accompanying drawings used in the embodiments are briefly described below, which constitute a part of the specification and are used together with the embodiments of this invention to explain this invention, but do not constitute a limitation on this invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of this novel invention;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this novel invention;

[0018] Figure 3 This is a cross-sectional structural diagram of an HDPE pipe connection.

[0019] 1. Fixed plate; 2. Movable plate; 3. Guide rail; 4. Sliding sleeve; 5. Gear; 6. Gear bracket; 7. Handle; 8. Rack and pinion structure; 9. HDPE pipe one; 10. HDPE pipe two; 11. Joint; 12. Threaded groove; 13. Pin. Detailed Implementation

[0020] The technical solutions of this invention 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 this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] The following embodiments can be understood as explaining a partial structure of the present invention individually, or as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0022] Example 1

[0023] A tool for tightening HDPE pipe joints, such as Figure 1-3 As shown, it includes a fixed clamping plate 1, a movable clamping plate 2, a guide rail 3, and a progressive tensioner. The fixed clamping plate 1 and the movable clamping plate 2 are both used to engage with the threaded groove 12 on the outer surface of the HDPE pipe. The guide rail 3 is connected between the fixed clamping plate and the movable clamping plate. The guide rail 3 is equipped with a progressive tensioner, which is connected to the movable clamping plate 2.

[0024] Example 2

[0025] like Figure 1 , 2 As shown, both the fixed plate 1 and the movable plate 2 are arc-shaped plates that match the shape and size of the threaded groove 12, and each of the two ends of the arc-shaped plate is integrally formed with a connecting plate (not marked in the figure).

[0026] like Figure 1 , 2 As shown, the connecting plates at both ends of the fixed plate 1 are detachably and fixedly connected to the same side of the two guide rails 3 by bolts. Each of the two guide rails 3 is slidably fitted with a sliding sleeve 4. The connecting plates at both ends of the movable plate 2 are detachably and fixedly connected to the two sliding sleeves 4 by bolts.

[0027] In this embodiment, the fixed clamping plate and the movable clamping plate are detachable, allowing for the replacement of fixed clamping plates and movable clamping plates of different specifications for HDPE pipes.

[0028] Example 3

[0029] like Figure 1 , 2As shown, the upper end of the guide rail 3 is provided with a rack structure 8. The progressive tensioner includes a gear 5 that works with the rack structure 8 and a drive component for driving the gear 5 to rotate. The lower end of the gear 5 passes through the through hole reserved at the top of the sliding sleeve 4 and meshes with the rack structure 8. The two ends of the central shaft of the gear 5 are fixedly connected to the inner surfaces of the two side walls of the sliding sleeve 4, respectively.

[0030] like Figure 1 , 2 As shown, the driving component includes an inverted U-shaped gear bracket 6. The lower part of the gear bracket 6 is provided with a shaft hole that is clearance-fitted with the central shaft. The side wall of the gear bracket 6 is fixedly connected to the gear 5 by a pin 13. The top ends of the two gear brackets 6 are fixedly connected to an inverted U-shaped handle 7. The two free ends of the handle 7 are respectively fixedly connected to the top of the corresponding gear bracket 6.

[0031] In this embodiment, by pulling the handle 7 and tilting it, the gear can rotate on the rack structure, thereby driving the sliding sleeve and the movable clamping plate to move towards one end of the fixed clamping plate, thus achieving the tightening of the two HDPE pipe joints.

[0032] Example 4

[0033] like Figure 1 , 2 As shown, the through hole is an elongated through hole, the length of which is sufficient to allow the gear 5 to rotate within a set angle under the drive of the handle 7. Normally, this rotation angle is sufficient to tighten the HDPE pipe joint.

[0034] like Figure 1 As shown, the pin 13 passes through the two side walls of the gear bracket 6 and engages with the tooth groove of the gear 5. When the handle is pulled to its maximum angle, if the interface still cannot be fully tightened, the pin can be removed, the handle can be raised, and then the pin can be inserted into the gear bracket and engaged with the tooth groove at the top of the gear. Then the handle can be pulled again to further tighten the interface.

[0035] The working principle of this new type:

[0036] like Figure 1-3 When the HDPE pipe joints are initially connected, the fixed clamp is engaged in the threaded groove of the HDPE pipe on one side, and the movable clamp is engaged in the threaded groove of the HDPE pipe on the opposite side. Pull the handle towards the fixed clamp side, and gradually tighten the joint through the meshing of the gear and rack structure until the joint is tightened in place.

Claims

1. A tool for tightening HDPE pipe joints, characterized in that: It includes a fixed clamping plate, a movable clamping plate, a guide rail, and a progressive tensioner. The fixed clamping plate and the movable clamping plate are both used to engage with the threaded grooves on the outer surface of the HDPE pipe. A guide rail connects the fixed clamping plate and the movable clamping plate. The guide rail is equipped with a progressive tensioner, and the progressive tensioner is connected to the movable clamping plate.

2. The tool for tightening HDPE pipe joints as described in claim 1, characterized in that: Both the fixed plate and the movable plate are arc-shaped plates that match the shape and size of the threaded groove, and each of the two ends of the arc-shaped plate is integrally formed with a connecting plate.

3. The tool for tightening HDPE pipe joints as described in claim 2, characterized in that: The connecting plates at both ends of the fixed plate are detachably and fixedly connected to the same side of the two guide rails by bolts. Sliding sleeves are slidably fitted on both guide rails. The connecting plates at both ends of the movable plate are detachably and fixedly connected to the two sliding sleeves by bolts.

4. The tool for tightening HDPE pipe joints as described in claim 3, characterized in that: The upper end of the guide rail is provided with a rack structure. The progressive tensioner includes a gear that works with the rack structure and a drive component for driving the gear to rotate. The lower end of the gear passes through a pre-reserved through hole at the top of the sliding sleeve and meshes with the rack structure. The two ends of the central shaft of the gear are fixedly connected to the inner surfaces of the two side walls of the sliding sleeve, respectively.

5. A tool for tightening HDPE pipe joints as described in claim 4, characterized in that: The drive component includes an inverted U-shaped gear bracket. The lower part of the gear bracket is provided with a shaft hole that fits with the central shaft with clearance. The side wall of the gear bracket is fixedly connected to the gear by a pin. The top of the two gear brackets are fixedly connected to an inverted U-shaped handle. The two free ends of the handle are fixedly connected to the top of the corresponding gear bracket.

6. A tool for tightening HDPE pipe joints as described in claim 5, characterized in that: The through hole is an elongated through hole, and the length of the elongated through hole is such that the gear can rotate within a set angle under the drive of the handle.

7. A tool for tightening HDPE pipe joints as described in claim 6, characterized in that: The pin passes through the two side walls of the gear bracket and engages with the tooth grooves of the gear.

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