A hydraulic pipe press

Abstract

The utility model relates to pipe clamp technology field, concretely relates to a hydraulic pipe clamp, including hydraulic handle and the fixed clamp seat connected in the terminal of hydraulic handle, still including two mounting seat, the mounting seat whole is U shape, one mounting seat is installed in fixed clamp seat and can be controlled to lift, another mounting seat is assembled on fixed clamp seat through detachable articulated component, the utility model connects multiple compression joint blocks together on a flexible substrate, constitutes the compression head assembly that can be disassembled and replaced in the mounting seat as a whole, and when installing, through the elastic deformation of its inner flexible substrate, the square head of compression joint block bottom can be elastically clamped into the square groove or is pressed and holds on the limiting rod, realizes the positioning installation of compression head assembly without any fastener, the compression joint block in compression head assembly is independent unit, if single block abrasion can be replaced alone, need not to carry out scrapping to whole compression head assembly, and the economy is better.

Description

Technical Field

[0001] This utility model relates to the field of pipe crimping pliers, and in particular to a hydraulic pipe crimping plier. Background Technology

[0002] Hydraulic pipe crimping wrenches are specialized pipe crimping tools. In the automotive repair field, they are widely used for on-site crimping and repair of damaged pipes such as air conditioning refrigeration pipes and power steering high-pressure oil pipes. Hydraulic pipe crimping wrenches mainly rely on a hydraulic booster mechanism to drive several crimping die heads to move relative to each other, so that the pipe and the joint are tightly squeezed and deformed to achieve the connection of the pipe.

[0003] Because there are various sizes of pipe fittings in the processing environment, hydraulic pipe crimping wrenches generally adopt a replaceable design for their crimping dies to adapt to the crimping requirements of different pipe diameters. However, a hydraulic pipe crimping wrench usually contains four or six crimping dies when it is in operation. Each crimping die generally needs to be installed and fixed separately with fasteners. Each crimping die needs to be disassembled and installed separately, making replacement and maintenance cumbersome. Therefore, improvements are needed. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a hydraulic pipe clamp to solve the above problems.

[0005] To achieve the above objectives, this utility model provides a hydraulic pipe clamp, including a hydraulic handle and a fixed clamp seat connected to the end of the hydraulic handle, and also includes two mounting seats. The mounting seats are generally U-shaped. One mounting seat is installed in the fixed clamp seat and can be raised and lowered in a controlled manner. The other mounting seat is assembled on the fixed clamp seat through a detachable hinge assembly, so that the two mounting seats can be symmetrically distributed vertically. The mounting base is detachably equipped with a pressure head assembly, which includes a flexible substrate and several pressing blocks. The bottom of the pressing block is provided with a trapezoidal anti-detachment platform, and the flexible substrate is sleeved on the trapezoidal anti-detachment platform and attached to the bottom surface of the pressing block.

[0006] Preferably, one of the flexible substrates contains three pressing blocks, and the pressing blocks are arranged at equal intervals along the length of the flexible substrate.

[0007] Preferably, the mounting slot in the mounting base has a square groove at the bottom and a notch in the side inclined wall of the mounting slot, and a limiting rod is fixed in the notch; The bottom surface of the trapezoidal anti-detachment platform is provided with a square head. The square head in the middle of one of the pressing head assemblies is embedded in the square groove, and the square heads on both sides are pressed inward at an angle by two limiting rods.

[0008] Preferably, the flexible substrate is further provided with trapezoidal grooves, which are spaced apart between adjacent pressing blocks.

[0009] Preferably, the detachable hinge assembly includes hinge arms disposed at the left and right ends of the mounting base, and hinge platforms disposed at the upper end of the fixing clamp and distributed on the left and right sides of the mounting base. One hinge arm is hinged to one hinge platform. The assembly also includes a pin for locking another hinge arm to the corresponding hinge platform. The end of the pin is connected to the fixing clamp via a chain.

[0010] Preferably, the outer circumferential surface of the pin is provided with an annular groove, and a rubber ring is installed in the annular groove.

[0011] Preferably, protective plates are also fixed on both sides of the fixed clamp seat, and the protective plates are attached to the movable mounting base in the fixed clamp seat.

[0012] The beneficial effects of this utility model are: This utility model connects multiple pressing blocks together on a flexible substrate to form a pressing head assembly that can be disassembled as a whole. When the pressing head assembly is installed, the elastic deformation of the flexible substrate inside allows the square head at the bottom of the pressing block to be elastically inserted into the square groove or pressed onto the limiting rod, thus achieving the positioning and installation of the pressing head assembly without any fasteners and making it easy to replace. The crimping blocks within the crimping head assembly are independent units. If a single block wears out, it can be replaced individually, eliminating the need to scrap the entire crimping head assembly, thus offering good economic benefits. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the appearance of an embodiment of the present utility model (without the pressure head assembly assembled). Figure 2 This is a schematic diagram of the appearance of the present invention in another state (a mounting plate is equipped with a pressure head assembly). Figure 3 This is a schematic diagram of the appearance of a pressure head assembly in this utility model; Figure 4 for Figure 4 Exploded view of the intermediate pressure head assembly; Figure 5 for Figure 4 A schematic diagram of the intermediate pressure head assembly from another perspective.

[0015] The diagram is marked as follows: 11. Hydraulic handle; 12. Fixed clamp seat; 21. Mounting base; 23. Square groove; 24. Limiting rod; 31. Crimping block; 32. Trapezoidal anti-detachment platform; 33. Flexible substrate; 34. Trapezoidal groove; 35. Square head; 41. Hinge arm; 42. Pin; 51. Guard plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] like Figures 1-5 As shown, a hydraulic pipe clamp includes a hydraulic handle 11 and a fixed clamp seat 12 connected to the upper end of the hydraulic handle 11, and also includes two mounting seats 21. The mounting seats 21 are generally U-shaped. One mounting seat 21 is installed in the fixed clamp seat 12 with its mounting groove facing upward. The hydraulic device in the hydraulic handle 11 can control the mounting seat 21 to lift and lower. Another mounting base 21 is assembled to the fixing clamp 12 via a detachable hinge assembly, such as Figure 1 As shown, when the mounting base 21 is fixed to the upper end of the fixing clamp 12, the mounting groove in the mounting base 21 faces downward, and the two mounting bases 21 are symmetrically distributed vertically.

[0019] In addition, a pressure head assembly is detachably installed inside the mounting base 21. When the upper mounting base 21 is fixed to the upper end of the fixing clamp 12, the lower mounting base 21 can move upward in a controlled manner and perform operations on the pipe clamped between the two mounting bases 21 through the two opposing pressure head assemblies.

[0020] Furthermore, the specific structure of the pressure head assembly is as follows: Figure 3 and Figure 4 As shown, the pressure head assembly includes a flexible substrate 33 and several pressure blocks 31. The top surface of the pressure block 31 is a pressure surface, used to contact the pipe and perform molding operations. A trapezoidal anti-detachment platform 32 is provided at the bottom of the pressure block 31. The flexible substrate 33 is sleeved on the trapezoidal anti-detachment platform 32 and attached to the bottom surface of the pressure block 31. The trapezoidal anti-detachment platform 32 is used to prevent the pressure block 31 from separating from the flexible substrate 33. In this embodiment, three pressure blocks 31 are installed in one flexible substrate 33, and the pressure blocks 31 are arranged at equal distances along the length direction of the flexible substrate 33.

[0021] The connection method of the pressure head assembly in the mounting groove is as follows: a square groove 23 is provided in the bottom surface of the mounting groove, a notch is provided in the side inclined wall of the mounting groove, a limiting rod 24 is fixed in the notch, and a square head 35 is provided on the bottom surface of the trapezoidal anti-detachment platform 32.

[0022] When one of the pressure head assemblies is assembled in the mounting groove, the square head 35 connected to the central pressure block 31 is embedded into the square groove 23, while the square heads 35 on both sides are pressed inward at an angle by the two limiting rods 24. At this time, the flexible substrate 33 is U-shaped as a whole and is attached to the bottom wall and the side inclined wall of the mounting groove to complete the connection and assembly between the pressure head assembly and the mounting base 21. During disassembly, the flexible substrate 33 can deform so that the pressure head assembly can be disassembled.

[0023] The pressure head assembly needs to be bent at both ends for installation. In order to facilitate bending and improve the life of the flexible substrate 33, a trapezoidal groove 34 is also provided in the flexible substrate 33. The trapezoidal groove 34 is spaced between adjacent pressure blocks 31. Through this design, the flexible substrate 33 can be bent along the trapezoidal groove 34.

[0024] The detachable hinge assembly includes hinge arms 41 disposed at the left and right ends of the mounting base 21, and hinge platforms disposed on the upper end of the fixing clamp 12 and distributed on the left and right sides of the mounting base 21. One hinge arm 41 is hinged to one hinge platform. The assembly also includes a pin 42 for locking another hinge arm 41 to its corresponding hinge platform. The end of the pin 42 is connected to the fixing clamp 12 via a chain. That is, the unhinged hinge arm 41 and the hinge platform each have through holes into which the pin 42 can be inserted. The pin 42 is inserted into the through hole so that the mounting base 21 on the upper side is completely fixed to the fixing clamp base 12. When the pin 42 is pulled out, the mounting base 21 on the upper side can swing apart to facilitate the replacement of the pressure head assembly installed in the mounting base 21 by the operator, or to separate the hydraulic pipe crimping wrench from the processed pipe fitting. The pressure head assembly can be designed in multiple sets, and the size and texture of the crimping block 31 in each set of the pressure head assembly are different, so that the hydraulic pipe crimping wrench can be adapted to various processing requirements.

[0025] Furthermore, an annular groove is provided on the outer peripheral surface of the pin 42, and a rubber ring is installed in the annular groove. The rubber ring is used to increase friction and prevent the pin 42 from accidentally coming out of the through hole.

[0026] The front and rear sides of the fixed clamp seat 12 are also fixed with protective plates 51. The protective plates 51 are attached to the lifting and lowering mounting base 21 in the fixed clamp seat 12 to improve the lifting and lowering stability of the mounting base 21.

[0027] It should be noted that the hydraulic device includes a pressure handle, a piston rod, a cylinder, and a pressure relief component mounted on the hydraulic handle 11. The operator can repeatedly press the pressure handle to raise the mounting base 21 (on the lower side) and lower the mounting base 21 through the pressure relief component. This is a conventional setting in the prior art and will not be described in detail here.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0029] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic pipe clamp, comprising a hydraulic handle (11) and a fixed clamp seat (12) connected to the end of the hydraulic handle (11), characterized in that: It also includes two mounting bases (21), which are U-shaped in general. One mounting base (21) is installed in the fixed clamp (12) and can be raised and lowered in a controlled manner. The other mounting base (21) is assembled on the fixed clamp (12) through a detachable hinge assembly, so that the two mounting bases (21) can be symmetrically distributed vertically. The mounting base (21) is detachably installed with a pressure head assembly, which includes a flexible substrate (33) and several pressing blocks (31). The bottom of the pressing block (31) is provided with a trapezoidal anti-detachment platform (32). The flexible substrate (33) is fitted over the trapezoidal anti-detachment platform (32) and attached to the bottom surface of the pressing block (31).

2. The hydraulic pipe clamp according to claim 1, characterized in that: The flexible substrate (33) contains three pressing blocks (31), and the pressing blocks (31) are arranged at equal intervals along the length of the flexible substrate (33).

3. A hydraulic pipe clamp according to claim 2, characterized in that: A square groove (23) is provided in the bottom surface of the mounting groove in the mounting base (21), and a notch is provided in the side inclined wall of the mounting groove, and a limiting rod (24) is fixed in the notch. The bottom surface of the trapezoidal anti-detachment platform (32) is provided with a square head (35). The square head (35) in the middle of one of the pressing head assemblies is embedded in the square groove (23), and the square heads (35) on both sides are pressed inward at an angle by two limiting rods (24).

4. A hydraulic pipe clamp according to claim 2, characterized in that: The flexible substrate (33) is also provided with trapezoidal grooves (34), which are spaced apart between adjacent pressing blocks (31).

5. A hydraulic pipe clamp according to claim 1, characterized in that: The detachable hinge assembly includes hinge arms (41) disposed at the left and right ends of the mounting base (21), and hinge platforms disposed at the upper end of the fixing clamp (12) and distributed on the left and right sides of the mounting base (21). One hinge arm (41) is hinged to one hinge platform. The assembly also includes a pin (42) for locking another hinge arm (41) to the corresponding hinge platform. The end of the pin (42) is connected to the fixing clamp (12) by a chain.

6. A hydraulic pipe clamp according to claim 5, characterized in that: The outer circumferential surface of the pin (42) is provided with an annular groove, and a rubber ring is installed in the annular groove.

7. A hydraulic pipe clamp according to claim 1, characterized in that: The fixed clamp (12) is also fixed with guard plates (51) on both sides, and the guard plates (51) are attached to the mounting base (21) that can be raised and lowered in the fixed clamp (12).

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