Clamp head of hydraulic water pipe clamping and pressing clamp

Abstract

The utility model provides a clamp head of a hydraulic water pipe clamping and pressing clamp. The clamp head of the hydraulic water pipe clamping and pressing clamp solves the problem that an existing clamp head of a hydraulic clamp is prone to torsional deformation due to extrusion and comprises a clamp head body, a left clamp head and a right clamp head which are symmetrically arranged are arranged on the clamp head body, a guide block is arranged on the left clamp head in a protruding mode, and a guide groove embedded with the guide block is formed in the right clamp head. Safety side plates playing a connecting role are arranged on the two sides of the tong head body respectively, a plug pin mounting hole and a plurality of rotating shaft mounting holes are formed in each safety side plate, connecting rotating shafts are arranged in the rotating shaft mounting holes, and the safety tong head has the advantages of being efficient in lubrication, capable of preventing locking, easy and convenient to disassemble and assemble, easy to maintain and stable in extrusion forming structure.

Description

Technical Field

[0001] This utility model belongs to the field of hardware tool technology, and relates to a water pipe clamping pliers, and particularly to a hydraulic water pipe clamping pliers head. Background Technology

[0002] Pipe crimping pliers mainly consist of a handle, pliers head, crimping bar, and crimping die. The pliers head is used to clamp the pipe, while the crimping bar and crimping die are used to fix the pipe to a wall or ground. The working principle of pipe crimping pliers is to use hydraulic or mechanical force to press the pliers head onto the pipe, thereby achieving pipe connection and fixation. In double crimping connections, pipe crimping pliers crimp simultaneously on both sides of the pipe to improve the connection's pull-out resistance and rotation resistance.

[0003] Pipe crimping pliers are typically made of high-strength alloy steel or other high-quality metal materials to ensure sufficient hardness and wear resistance. The pliers have a specific shape, such as hexagon or other shapes suitable for crimping, to accommodate different specifications and types of pipe connections. Traditional pliers use a lever structure to press inwards by symmetrically setting the hexagonal pressing parts. However, the parallel setting of traditional pliers can cause offset during crimping, leading to twisting and deformation of the connected pipes, affecting the connection strength and aesthetics. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a hydraulic pipe clamping pliers head that offers high efficiency in lubrication and prevents deflection.

[0005] The purpose of this utility model can be achieved through the following technical solution: a hydraulic water pipe clamping pliers head, characterized in that it includes a pliers head body, on which a left pliers head and a right pliers head are symmetrically arranged, a guide block protruding from the left pliers head, a guide groove for fitting the guide block on the right pliers head, and safety side plates for connecting on both sides of the pliers head body, each of the safety side plates having a pin mounting hole and a plurality of shaft mounting holes, and a connecting shaft being provided in the shaft mounting holes.

[0006] In the aforementioned hydraulic pipe clamping pliers head, each of the connecting shafts has a mounting hole, a rubber sleeve is provided in the mounting hole, an oil storage chamber is provided between the rubber sleeve and the mounting hole, the connecting shaft has several through-holes for draining oil, the inner wall of the rubber sleeve protrudes inward and is squeezed, and a support element is provided inside the rubber sleeve, a connecting ring is provided on the support element, several support bars are evenly distributed on the connecting ring, and a connecting rod is provided in the mounting hole.

[0007] In the hydraulic water pipe clamping pliers head described above, a gasket is provided on one side of the rotating shaft mounting hole, and a locking ring is provided on the gasket. Several mounting cavities are provided on the inner wall of the locking ring, and a locking ball is provided in each mounting cavity. A support spring is provided between the locking ball and the mounting cavity, and a snap ring groove is provided on the connecting rod.

[0008] In the hydraulic pipe clamping pliers head described above, both ends of the rubber sleeve are provided with limiting rings, and the two sides of the limiting rings respectively abut against the gasket and the connecting shaft.

[0009] In the hydraulic pipe crimping pliers head described above, a safety pin is provided on the pin mounting hole, and an integral connecting block is provided on the safety pin, the connecting block being fixedly connected to the connecting rod.

[0010] In the aforementioned hydraulic hose crimping pliers, both the left and right pliers are equipped with control handles, and each control handle is equipped with a protective sleeve.

[0011] Compared with existing technologies, this hydraulic pipe crimping pliers reduces the torsion of pipe fittings under pressure by setting interlocking guide blocks and guide grooves, making the crimped pipe fittings more neat and convenient for subsequent disassembly and connection, while also increasing aesthetics. A connecting rod is set in the connecting shaft, and the rubber sleeve is squeezed by the safety pin each time it is installed, which lubricates and reduces the number of maintenance times, making it easier to use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the hydraulic hose crimping pliers head.

[0013] Figure 2 This is a schematic diagram of the half-section of the head of the hydraulic water pipe crimping pliers.

[0014] Figure 3 This is a schematic diagram of the structure of the left and right jaws of this hydraulic hose crimping pliers.

[0015] Figure 4 This is a schematic diagram of the structure of the hydraulic hose crimping pliers' head connecting shaft.

[0016] Figure 5 This is a partially enlarged structural diagram of the hydraulic hose crimping pliers head.

[0017] In the diagram: 1. Shaft mounting hole; 2. Clamping head body; 3. Washer; 4. Connecting block; 5. Left clamping head; 6. Pin mounting hole; 7. Safety pin; 8. Safety side plate; 9. Right clamping head; 10. Connecting rod; 11. Guide block; 12. Guide groove; 13. Protective sleeve; 14. Control handle; 15. Mounting hole; 16. Limit ring; 17. Support bar; 18. Oil reservoir; 19. Rubber sleeve; 20. Connecting ring; 21. Support element; 22. Connecting shaft; 23. Oil drain hole; 24. Support spring; 25. Locking ring; 26. Mounting cavity; 27. Locking ball; 28. Snap ring groove. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figure 1 , 2 As shown in Figures 3, 4, and 5, this hydraulic hose crimping pliers includes a plier body 2. The plier body 2 has a symmetrically arranged left plier head 5 and a right plier head 9. A guide block 11 protrudes from the left plier head 5, and a guide groove 12 for fitting the guide block 11 is provided on the right plier head 9. Safety side plates 8 are provided on both sides of the plier body 2 for connection. Each safety side plate 8 has a pin mounting hole 6 and several shaft mounting holes 1. A connecting shaft 22 is provided in each shaft mounting hole 1. During use, the plier body 2 is installed... The pipe is clamped by a hydraulic tool and then pressed and squeezed by the hydraulic tool. During the squeezing, the guide block 11 is embedded in the guide groove 12. During the squeezing process, the left jaw 5 and the right jaw 9 will be twisted and deformed due to the support of the pipe. When the jaw body 2 is closed, it will be guided by the guide block 11 until the guide block 11 and the guide groove 12 are completely closed. Even if the pipe is twisted and deformed, the left jaw 5 and the right jaw 9 will be reset due to the engagement of the guide block 11 and the guide groove 12, so that the pipe is squeezed into a predetermined structure.

[0020] Preferably, each connecting shaft 22 is provided with a mounting hole 15, and a rubber sleeve 19 is provided in the mounting hole 15. An oil storage cavity 18 is provided between the rubber sleeve 19 and the mounting hole 15. The connecting shaft 22 is provided with several through oil drain holes 23. The inner wall of the rubber sleeve 19 protrudes inward and is squeezed. A support element 21 is provided in the rubber sleeve 19. A connecting ring 20 is provided on the support element 21. Several support bars 17 are evenly distributed on the connecting ring 20. A connecting rod 10 is provided in the mounting hole 15. A cavity is formed by the inwardly squeezed rubber sleeve 19. Lubricating grease is injected into the cavity. The support bars 17 are squeezed by the connecting rod 10, and the grease is squeezed outward by squeezing the rubber sleeve 19 to lubricate the connecting shaft 22.

[0021] Preferably, a gasket 3 is provided on one side of the shaft mounting hole 1, and a locking ring 25 is provided on the gasket 3. Several mounting cavities 26 are provided on the inner wall of the locking ring 25. A locking ball 27 is provided in each mounting cavity 26. A support spring 24 is provided between the locking ball 27 and the mounting cavity 26. A snap ring groove 28 is provided on the connecting rod 10. Soft fixation is achieved by the locking ball 27 and the locking ring 25, which prevents the connecting rod 10 from falling off and facilitates disassembly and assembly.

[0022] Preferably, the rubber sleeve 19 is provided with limiting rings 16 at both ends. The two sides of the limiting rings 16 abut against the gasket 3 and the connecting shaft 22 respectively. The welding wire is fixed by the limiting rings 16 and the connecting shaft 22, so as to prevent the connecting rod 10 from sliding and causing oil leakage when it enters the mounting hole 15.

[0023] Preferably, a safety pin 7 is provided on the pin mounting hole 6, and an integral connecting block 4 is provided on the safety pin 7. The connecting block 4 is fixedly connected to the connecting rod 10. By connecting the safety pin 7 and the connecting rod 10 into a whole, when the safety pin 7 is inserted using this pliers, the connecting rod 10 is simultaneously squeezed for lubrication.

[0024] Preferably, both the left jaw 5 and the right jaw 9 are provided with control handles 14, and each control handle 14 is provided with a protective cover 13.

[0025] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0026] Although this document frequently uses terms such as 1. rotating shaft mounting hole, 2. pliers head body, 3. gasket, 4. connecting block, 5. left pliers head, 6. pin mounting hole, 7. safety pin, 8. safety side plate, 9. right pliers head, 10. connecting rod, 11. guide block, 12. guide groove, 13. protective sleeve, 14. control handle, 15. mounting hole, 16. limit ring, 17. support bar, 18. oil reservoir, 19. rubber sleeve, 20. connecting ring, 21. support element, 22. connecting shaft, 23. oil drain hole, 24. support spring, 25. locking ring, 26. mounting cavity, 27. locking ball, and 28. snap ring groove, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A hydraulic water pipe crimping pliers head, characterized in that, The pliers include a pliers head body (2), on which a left pliers head (5) and a right pliers head (9) are symmetrically arranged. A guide block (11) protrudes from the left pliers head (5), and a guide groove (12) for fitting the guide block (11) is provided on the right pliers head (9). Safety side plates (8) that serve as connections are provided on both sides of the pliers head body (2). Each safety side plate (8) is provided with a pin mounting hole (6) and several shaft mounting holes (1). A connecting shaft (22) is provided in the shaft mounting holes (1).

2. The hydraulic water pipe crimping pliers head according to claim 1, characterized in that, The connecting shaft (22) is provided with mounting holes (15), and a rubber sleeve (19) is provided in the mounting holes (15). An oil storage cavity (18) is provided between the rubber sleeve (19) and the mounting holes (15). The connecting shaft (22) is provided with several through oil drain holes (23). The inner wall of the rubber sleeve (19) protrudes inward and is squeezed. A support element (21) is provided in the rubber sleeve (19). A connecting ring (20) is provided on the support element (21). Several support bars (17) are evenly distributed on the connecting ring (20). A connecting rod (10) is provided in the mounting holes (15).

3. The hydraulic water pipe crimping pliers head according to claim 2, characterized in that, A gasket (3) is provided on one side of the shaft mounting hole (1), and a locking ring (25) is provided on the gasket (3). Several mounting cavities (26) are provided on the inner wall of the locking ring (25). A locking ball (27) is provided in each mounting cavity (26). A support spring (24) is provided between the locking ball (27) and the mounting cavity (26). A snap ring groove (28) is provided on the connecting rod (10).

4. The hydraulic water pipe crimping pliers head according to claim 2, characterized in that, The rubber sleeve (19) is provided with limiting rings (16) at both ends. The limiting rings (16) abut against the gasket (3) and the connecting shaft (22) on both sides respectively.

5. The hydraulic water pipe crimping pliers head according to claim 1, characterized in that, The pin mounting hole (6) is provided with a safety pin (7), and the safety pin (7) is provided with an integral connecting block (4), which is fixedly connected to the connecting rod (10).

6. The hydraulic water pipe crimping pliers head according to claim 1, characterized in that, The left jaw (5) and the right jaw (9) are each provided with a control handle (14), and the control handle (14) is provided with a protective cover (13).

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