Butt joint tool for drainage pipe

Abstract

The butt joint tool comprises a fixed pipe hoop and a movable pipe hoop, limiting rods are fixed to the top end and the bottom end of the fixed pipe hoop, the two limiting rods are collinear and arranged in parallel, and the top end and the bottom end of the movable pipe hoop are in sliding fit with the two limiting rods respectively. A traction mechanism is arranged between the fixed pipe hoop and the movable pipe hoop and comprises a rope winding assembly and a hanging ring, the rope winding assembly and the hanging ring are symmetrically installed at the bottoms of the fixed pipe hoop and the movable pipe hoop respectively, the rope winding assembly comprises a rotating shaft, and a shaft body of the rotating shaft penetrates through the bottom of the fixed pipe hoop. The center of the shaft body is rotationally connected with the bottom of the fixing pipe hoop, steel wire ropes are wound around the shaft bodies at the two ends, located on the outer side of the fixing pipe hoop, of the rotating shaft, hooks are fixed to the tail ends of the steel wire ropes, and rapid and synchronous traction of the two pipelines can be achieved in the mode that the rocking handle drives the rotating shaft to wind the steel wire ropes. An operator only needs to rotate the rocking handle in one direction, and the pipeline distance can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of drainage pipe butt joint, specifically relates to a butt joint tool for drainage pipe. BACKGROUND

[0002] As an important component in municipal engineering and building water supply and drainage system, the sealing property and reliability of the interface connection of the drainage pipeline directly affect the operation efficiency of the pipe network. At present, in the construction of PVC-U, HDPE and other material drainage pipes with DN100-DN300 specifications, when the pipeline needs to be hot-melt butt joint or electric-melt connection, the pipe openings of the two pipelines to be butt jointed usually need to be adjusted to the coaxial alignment state through a traction device. The traditional process usually adopts a split type clamp structure, that is, a fixed clamp with a threaded hole is installed at each of the two pipe ends, and a traction force is generated by adjusting the screwing depth of a plurality of bolts to gradually reduce the distance between the two pipelines. However, this method has significant defects in actual application: first, the operator needs to repeatedly adjust the screwing amount of each bolt to ensure the synchronization of traction, which is time-consuming and labor-intensive, and seriously affects the construction efficiency. Therefore, the utility model provides a butt joint tool for drainage pipe, which has the functions of quick centering and convenient force application, to meet the dual requirements of efficiency and quality in modern pipeline construction. SUMMARY

[0003] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a butt joint tool for drainage pipe, comprising a fixed pipe clamp and a movable pipe clamp, the top end and the bottom end of the fixed pipe clamp are both fixed with a limiting rod, the two limiting rods are arranged in line and parallel, the top end and the bottom end of the movable pipe clamp are respectively and slidingly matched with the two limiting rods, a traction mechanism is arranged between the fixed pipe clamp and the movable pipe clamp, the traction mechanism comprises a rope winding assembly and a hanging ring, the rope winding assembly and the hanging ring are respectively and symmetrically installed at the bottom of the fixed pipe clamp and the movable pipe clamp, the rope winding assembly comprises a rotating shaft, the shaft body of the rotating shaft penetrates through the bottom of the fixed pipe clamp, and the center of the shaft body is rotationally connected with the bottom of the fixed pipe clamp, the two ends of the rotating shaft outside the fixed pipe clamp are both wound with a steel wire rope, the end of the steel wire rope is fixed with a hook, the hook and the hanging ring are matched, and one end of the rotating shaft is fixed with a handle.

[0004] As a preferred technical scheme of the utility model, the fixed pipe clamp and the movable pipe clamp both comprise an upper pipe clamp and a lower pipe clamp, one side of the upper pipe clamp and the lower pipe clamp is hingedly connected, and the other side of the upper pipe clamp and the lower pipe clamp is connected through a bolt.

[0005] As a preferred technical scheme of the utility model, the rotating shaft outside the shaft body wound with the steel wire rope is both provided with an outer shell, the outer shell is fixedly connected with the lower pipe clamp, and a ratchet assembly is arranged between the outer shell and the rotating shaft.

[0006] As a preferred technical solution of this utility model, the ratchet assembly includes a ratchet body and a pawl. The ratchet body is fixed to the shaft body, the pawl is rotatably connected to the outer shell, and a spring is installed on one side. The two ends of the spring are respectively connected to the inner wall of the outer shell and the pawl.

[0007] As a preferred embodiment of this utility model, a lever is fixed to the top of the pawl, and the top of the lever extends through the outer shell to the outside of the outer shell.

[0008] As a preferred embodiment of this utility model, anti-slip pads are fixed to the inner walls of both the upper and lower pipe clamps.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] (1) This utility model eliminates the complex operation of traditional split clamps that require repeated alternating adjustment of multiple sets of bolts. By using a crank to drive the rotating shaft to wind the steel wire rope, it can achieve rapid and synchronous traction of two pipes. The operator only needs to turn the crank in one direction to complete the pipe spacing adjustment. Compared with the traditional process, it greatly shortens the construction time and effectively improves the efficiency of drainage pipe connection operations. It is especially suitable for the rapid construction needs of large-scale municipal engineering or building water supply and drainage systems.

[0011] (2) Regarding alignment accuracy and connection quality, the limiting rod design between the fixed and movable pipe clamps provides precise guidance for the sliding of the movable pipe clamp, ensuring that the two pipes to be connected always maintain coaxiality. Combined with the one-way locking function of the ratchet assembly on the rotating shaft, it can effectively prevent the wire rope from loosening due to external force interference during the traction process, thereby ensuring high precision of pipe connection and significantly improving the reliability of drainage pipe interface connection.

[0012] (3) The tooling is compact and small in size, making it easy to carry and transport. It is suitable for various complex construction environments of drainage pipes, and has good versatility and practicality, providing efficient and reliable technical support for modern drainage pipeline construction. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Fig. 1 This is a side view of the present invention;

[0015] Fig. 2 This is a front view of the fixing clamp in this utility model;

[0016] Fig. 3 This is a cross-sectional view of the outer shell of this utility model;

[0017] In the diagram: 1. Fixed pipe clamp; 2. Movable pipe clamp; 3. Limiting rod; 4. Hanging ring; 5. Rotating shaft; 6. Steel wire rope; 7. Hook; 8. Handle; 9. Upper pipe clamp; 10. Lower pipe clamp; 11. Outer shell; 12. Ratchet body; 13. Pad; 14. Spring; 15. Lever; 16. Anti-slip pad. Detailed Implementation

[0018] 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.

[0019] Example

[0020] Please see Figs. 1-3 This utility model provides the following technical solution: a docking fixture for drainage pipes, including a fixed pipe clamp 1 and a movable pipe clamp 2. The top and bottom ends of the fixed pipe clamp 1 are fixed with limit rods 3. The two limit rods 3 are collinear and parallel. The top and bottom ends of the movable pipe clamp 2 are slidably engaged with the two limit rods 3 respectively. A traction mechanism is provided between the fixed pipe clamp 1 and the movable pipe clamp 2. The traction mechanism includes a rope winding assembly and a hanging ring 4. The rope winding assembly and the hanging ring 4 are symmetrically installed at the bottom of the fixed pipe clamp 1 and the movable pipe clamp 2 respectively. The rope winding assembly includes a rotating shaft 5. The shaft of the rotating shaft 5 passes through the bottom of the fixed pipe clamp 1, and the center of the shaft is rotatably connected to the bottom of the fixed pipe clamp 1. The two ends of the rotating shaft 5 located outside the fixed pipe clamp 1 are wound with steel wire ropes 6. The ends of the steel wire ropes 6 are fixed with hooks 7. The hooks 7 and the hanging rings 4 are matched. One end of the rotating shaft 5 is fixed with a crank handle 8.

[0021] To ensure the efficiency and convenience of pipe clamp installation and to ensure the stable clamping of the pipe, in this embodiment, as a preferred technical solution of the present invention, both the fixed pipe clamp 1 and the movable pipe clamp 2 include an upper pipe clamp 9 and a lower pipe clamp 10. The upper pipe clamp 9 and the lower pipe clamp 10 are hinged to each other on one side, and the other side of the upper pipe clamp 9 and the lower pipe clamp 10 are connected by bolts.

[0022] To enhance the stability and safety of the traction process and avoid affecting the pipe connection accuracy due to the slack of the wire rope 6 caused by external force, in this embodiment, as a preferred technical solution of the present invention, the rotating shaft 5 is provided with a housing 11 on the outer side of the shaft body on which the wire rope 6 is wound. The housing 11 is fixedly connected to the lower pipe clamp 10. A ratchet assembly is provided between the housing 11 and the rotating shaft 5. The ratchet assembly includes a ratchet body 12 and a pawl 13. The ratchet body 12 is fixed to the shaft body of the rotating shaft 5. The pawl 13 is rotatably connected to the housing 11, and a spring 14 is installed on one side. The two ends of the spring 14 are respectively connected to the inner wall of the housing 11 and the pawl 13. A lever 15 is fixed to the top of the pawl 13. The top of the lever 15 extends through the housing 11 to the outside of the housing 11.

[0023] In order to increase the friction between the pipe clamp and the pipe, enhance the fixing effect, and prevent the pipe clamp from slipping during the connection process, in this embodiment, as a preferred technical solution of the present invention, anti-slip pads 16 are fixed on the inner walls of both the upper pipe clamp 9 and the lower pipe clamp 10.

[0024] In summary, with the help of the above-described technical solution of this utility model,

[0025] During the tooling installation phase, the pipes are fixed using a split structure of fixed pipe clamp 1 and movable pipe clamp 2. Both fixed pipe clamp 1 and movable pipe clamp 2 consist of an upper pipe clamp 9 and a lower pipe clamp 10. The upper pipe clamp 9 and lower pipe clamp 10 are hinged together on one side and bolted together on the other side. This design facilitates quick installation of the pipe clamps onto the pipes to be connected. During installation, the upper pipe clamp 9 and lower pipe clamp 10 are wrapped around the pipes and tightened with bolts to ensure a tight fit between the pipe clamps and the pipes. Simultaneously, anti-slip pads 16 fixed to the inner walls of the upper pipe clamp 9 and lower pipe clamp 10 increase the friction between the pipe clamps and the pipes, effectively preventing slippage during the connection process and ensuring the stability of the fixation.

[0026] The limiting rods 3 fixed at the top and bottom of the fixed pipe clamp 1 provide guidance and limiting functions for the sliding of the movable pipe clamp 2. The top and bottom of the movable pipe clamp 2 slide in cooperation with the two limiting rods 3, so that the movable pipe clamp 2 can slide smoothly along the axial direction of the pipe under the constraint of the limiting rods 3, ensuring that the two pipes to be connected always maintain coaxiality during the connection process, creating conditions for precise connection.

[0027] Entering the pipeline docking operation stage, the two pipelines are brought closer together using a traction mechanism. The rope winding assembly in the traction mechanism is installed at the bottom of the fixed pipe clamp 1, and the hanging ring 4 is installed at the bottom of the movable pipe clamp 2. Rotating the handle 8 at one end of the rotating shaft 5 causes the shaft 5 to rotate, and the steel wire rope 6 wound around the shaft 5 begins to tighten. The hook 7 at the end of the steel wire rope 6 is hooked onto the hanging ring 4 at the bottom of the movable pipe clamp 2. As the steel wire rope 6 tightens, a traction force is generated towards the fixed pipe clamp 1, pulling the movable pipe clamp 2 and the pipeline it fixes closer to the fixed pipe clamp 1 and the pipeline it fixes.

[0028] To prevent the rotating shaft 5 from reversing due to external interference during traction, which could loosen the tightened wire rope 6 and affect the pipe connection accuracy, a ratchet assembly is installed between the rotating shaft 5 and the outer casing 11. The ratchet assembly consists of a ratchet body 12 and a pawl 13. When the rotating shaft 5 rotates clockwise to tighten the wire rope 6, the pawl 13 engages with the tooth groove of the ratchet body 12 under the action of the spring 14, preventing the rotating shaft 5 from rotating counterclockwise and ensuring that the wire rope 6 is always in a tightened state, maintaining the stability of the pipe connection. To loosen the wire rope 6, simply push the lever 15 at the top of the pawl 13 upwards, causing the pawl 13 teeth to disengage from the tooth groove of the ratchet body 12, thus achieving the reverse rotation of the rotating shaft 5.

[0029] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fitting for connecting drainage pipes, comprising a fixed pipe clamp (1) and a movable pipe clamp (2), characterized in that: The fixed pipe clamp (1) has limit rods (3) fixed at both the top and bottom. The two limit rods (3) are collinear and parallel. The movable pipe clamp (2) has sliding fits between the top and bottom and the two limit rods (3). A traction mechanism is provided between the fixed pipe clamp (1) and the movable pipe clamp (2). The traction mechanism includes a rope winding assembly and a hanging ring (4). The rope winding assembly and the hanging ring (4) are symmetrically installed at the bottom of the fixed pipe clamp (1) and the movable pipe clamp (2). The rope winding assembly includes a rotating shaft (5). The shaft of the rotating shaft (5) passes through the bottom of the fixed pipe clamp (1), and the center of the shaft is rotatably connected to the bottom of the fixed pipe clamp (1). The two ends of the rotating shaft (5) located outside the fixed pipe clamp (1) are wound with steel wire ropes (6). The ends of the steel wire ropes (6) are fixed with hooks (7). The hooks (7) and the hanging rings (4) are compatible. One end of the rotating shaft (5) is fixed with a crank (8).

2. The drain pipe connection tool according to claim 1, characterized in that: Both the fixed pipe clamp (1) and the movable pipe clamp (2) include an upper pipe clamp (9) and a lower pipe clamp (10). The upper pipe clamp (9) and the lower pipe clamp (10) are hinged to each other on one side, and the upper pipe clamp (9) and the lower pipe clamp (10) are connected by bolts on the other side.

3. The drain pipe connection tool according to claim 2, characterized in that: The rotating shaft (5) is provided with a housing (11) on the outside of the shaft body on which the steel wire rope (6) is wound. The housing (11) is fixedly connected to the lower tube clamp (10). A ratchet assembly is provided between the housing (11) and the rotating shaft (5).

4. The drain pipe connection tool according to claim 3, characterized in that: The ratchet assembly includes a ratchet body (12) and a pawl (13). The ratchet body (12) is fixed to the shaft of the rotating shaft (5). The pawl (13) is rotatably connected to the outer shell (11), and a spring (14) is installed on one side. The two ends of the spring (14) are respectively connected to the inner wall of the outer shell (11) and the pawl (13).

5. A fitting for connecting drainage pipes according to claim 4, characterized in that: The top of the pawl (13) is fixed with a lever (15), the top of the lever (15) extending through the outer shell (11) to the outside of the outer shell (11).

6. The drain pipe connection tool according to claim 2, characterized in that: The inner walls of both the upper tube clamp (9) and the lower tube clamp (10) are fixed with anti-slip pads (16).

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