Hydraulic clamp for engineering forcible entry

Abstract

The utility model discloses a hydraulic clamp for engineering forcible entry, which relates to the technical field of hydraulic clamps and comprises a hydraulic cylinder, a fixed connecting seat is arranged at the left end of the hydraulic cylinder, a movable connecting seat is arranged at the right end of the hydraulic cylinder, and a jaw plate is rotatably connected to the inner side of the fixed connecting seat. The inner sides of the movable connecting bases are rotationally connected with the same jaw plates, and a connecting assembly is arranged between the two jaw plates. According to the hydraulic clamp for engineering forcible entry, the jaw plates, the connecting assembly, the clamp head sleeve and the like are arranged, the two jaw plates are connected in a limiting mode through the connecting assembly, and therefore the length of the connecting assembly can be adjusted and the unfolding width of the two jaw plates can be changed by rotating threaded connection of the adjusting sleeve, the adjusting nut and the threaded rod; and meanwhile, the plier head sleeve is connected with the mounting seat in a sleeving manner, so that the plier head sleeve is convenient to disassemble, when the jaw is damaged, the plier head sleeve is convenient to disassemble and replace, and the convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pliers, in particular to a pair of hydraulic pliers for engineering demolition. Background Art

[0002] In engineering demolition, some reinforced concrete structures need to be demolished by hydraulic pliers. The hydraulic pliers are supplied with high-pressure oil in the cylinder by the pump station, which extends the piston rod and pushes the jaws to move to shear the concrete structure. The forward and reverse oil supply of the cylinder controls the opening and closing of the hydraulic pliers.

[0003] For example, publication number CN206091362U discloses a concrete crushing tool comprising a hydraulic cylinder, a left jaw, a right jaw, a clamping plate, and a frame tube. The cylinder barrel of the hydraulic cylinder is fixedly connected to the frame tube, and the lower portions of the left and right jaws are hinged to the cylinder barrel and piston rod of the hydraulic cylinder, respectively. The left and right jaws are hinged to the ends of the clamping plate below the jaws, and the locations where the left and right jaws are hinged to the clamping plate are respectively provided with interlocking male and female racks. This utility model can achieve static crushing without vibration, with low dust and noise, small and easy-to-remove broken pieces, and a small size suitable for demolition work in various spatial locations.

[0004] The hydraulic pliers for engineering demolition in this patent are mostly of fixed size, and the width of the jaws cannot be adjusted, and cannot adapt to concrete structures of different widths. At the same time, the jaws are mostly an integrated structure, and after the jaws are worn and damaged, it is inconvenient to repair and replace them, and the practicality is low. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a hydraulic pliers for engineering demolition, which solves the problem that the width of the jaws cannot be adjusted and cannot adapt to concrete structures of different widths. At the same time, the jaws are mostly an integrated structure, which makes it inconvenient to repair and replace the jaws after wear and damage, resulting in low practicality.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hydraulic pliers for engineering demolition, comprising a hydraulic cylinder, a fixed connecting seat is provided at the left end of the hydraulic cylinder, a movable connecting seat is provided at the right end of the hydraulic cylinder, a jaw plate is rotatably connected to the inner side of the fixed connecting seat, the same jaw plate is rotatably connected to the inner side of the movable connecting seat, a connecting assembly is provided between the two jaw plates, the lower end of the jaw plate is fixedly connected to a mounting seat, a pliers head cover is installed at the lower end of the mounting seat, and hydraulic connecting ports are provided on both the left and right sides of the upper end of the hydraulic cylinder.

[0007] Preferably, the output end of the hydraulic cylinder is fixedly connected to the movable connecting seat, the upper ends of the fixed connecting seat and the movable connecting seat are fixedly connected with a holding handle, and the left end of the fixed connecting seat and the right end of the movable connecting seat are fixedly connected with a lifting hook, which is convenient for hand-held use of the hydraulic pliers or lifting and moving.

[0008] Preferably, the two jaw plates are symmetrically distributed, and arc-shaped grooves are provided on the inner sides of the surfaces of the jaw plates to facilitate the dismantling of the engineering structure.

[0009] Preferably, the connecting assembly includes a connecting frame, two of which are symmetrically arranged, one end of the connecting frame is rotatably connected to the jaw plate, and the other end of the connecting frame is fixedly connected to a threaded rod, an adjusting sleeve is provided between the two threaded rods, and adjusting nuts are fixedly installed on the left and right ends of the inner side of the adjusting sleeve, which can adjust the distance between the two jaw plates.

[0010] Preferably, the adjusting nut and the threaded rod are threadedly connected, the surface of the adjusting sleeve is provided with anti-slip grooves, and the connecting frame is designed in a U-shaped structure. By rotating the adjusting sleeve and utilizing the threaded connection between the adjusting nut and the threaded rod, the length of the entire connecting assembly can be adjusted.

[0011] Preferably, the pliers head cover is sleeved with the mounting seat, a bolt hole is provided on the surface of the mounting seat, and a locking bolt is installed on the upper end of the surface of the pliers head cover, which facilitates the disassembly and replacement of the pliers head cover and improves convenience.

[0012] Beneficial effects

[0013] The utility model provides a hydraulic pliers for engineering demolition. Compared with the existing technology, it has the following advantages:

[0014] The hydraulic pliers for engineering demolition are equipped with jaw plates, connecting components and clamp head covers. The two jaw plates are limitedly connected by the connecting component. By rotating the adjusting sleeve and adjusting the threaded connection between the nut and the threaded rod, the length of the connecting component can be adjusted and the expanded width of the two jaw plates can be changed, which is convenient for adapting to different engineering structures. At the same time, the connection between the clamp head cover and the mounting seat facilitates the disassembly of the clamp head cover. When the jaws are damaged, they are easy to disassemble and replace, which improves convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a front view structural diagram of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-section structure at point A;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting base and the pliers head cover of the present utility model.

[0019] In the figure: 1. Hydraulic cylinder; 2. Fixed connecting seat; 21. Holding handle; 22. Lifting hook; 3. Movable connecting seat; 4. Jaw plate; 5. Connecting assembly; 51. Connecting frame; 52. Threaded rod; 53. Adjusting sleeve; 54. Adjusting nut; 6. Mounting seat; 61. Bolt hole; 7. Clamp head cover; 71. Locking bolt; 8. Hydraulic connecting port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The utility model provides a technical solution: a hydraulic pliers for engineering demolition, comprising a hydraulic cylinder 1, a fixed connecting seat 2 is provided at the left end of the hydraulic cylinder 1, a movable connecting seat 3 is provided at the right end of the hydraulic cylinder 1, the output end of the hydraulic cylinder 1 is fixedly connected to the movable connecting seat 3, the upper ends of the fixed connecting seat 2 and the movable connecting seat 3 are fixedly connected to a gripping handle 21, the left end of the fixed connecting seat 2 and the right end of the movable connecting seat 3 are fixedly connected to a lifting hook 22, the inner side of the fixed connecting seat 2 is rotatably connected to a jaw plate 4, the inner side of the movable connecting seat 3 is rotatably connected to the same jaw plate 4, the two jaw plates 4 are symmetrically distributed, and an arc groove is provided on the inner side of the surface of the jaw plate 4, the movable connecting seat 3 is driven by the hydraulic cylinder 1 to move, and the upper end of the jaw plate 4 is driven to move, so as to conveniently control the opening and closing of the two jaw plates 4;

[0022] A connecting assembly 5 is provided between the two jaw plates 4. The connecting assembly 5 includes a connecting frame 51. Two connecting frames 51 are symmetrically provided. One end of the connecting frame 51 is rotatably connected to the jaw plate 4. The other end of the connecting frame 51 is fixedly connected to a threaded rod 52. An adjusting sleeve 53 is provided between the two threaded rods 52. Adjusting nuts 54 are fixedly installed on the left and right ends of the inner side of the adjusting sleeve 53. The adjusting nuts 54 are threadedly connected to the threaded rod 52. The surface of the adjusting sleeve 53 is provided with anti-slip grooves. The connecting frame 51 is designed in a U-shaped structure. By rotating the adjusting sleeve 53 and the threaded connection between the adjusting nuts 54 and the threaded rod 52, the length of the connecting assembly 5 can be adjusted, and the unfolded width of the two jaw plates 4 can be changed, which is convenient for adapting to different engineering structures.

[0023] The lower end of the jaw plate 4 is fixedly connected to the mounting base 6, and the lower end of the mounting base 6 is installed with a pliers cover 7, the pliers cover 7 and the mounting base 6 are sleeved, and a bolt hole 61 is opened on the surface of the mounting base 6, and a locking bolt 71 is installed on the upper end of the surface of the pliers cover 7. Hydraulic connecting ports 8 are provided on the left and right sides of the upper end of the hydraulic cylinder 1. The pliers cover 7 is sleeved on the mounting base 6 and fixed by the locking bolt 71, so as to facilitate the disassembly of the pliers cover 7. When the jaws are damaged, it is easy to replace, which improves convenience.

[0024] During operation, the pump station is connected through the hydraulic connection port 8, so that high-pressure oil enters the hydraulic cylinder 1, and the hydraulic cylinder 1 drives the movable connecting seat 3 to move, thereby driving the upper end of the jaw plate 4 to move, so as to conveniently control the opening and closing of the two jaw plates 4, and by rotating the adjusting sleeve 53, adjusting the threaded connection of the nut 54 and the threaded rod 52, the length of the connecting assembly 5 can be adjusted, and the unfolded width of the two jaw plates 4 can be changed, which is convenient for adapting to different engineering structures. At the same time, the clamp head cover 7 is sleeved on the mounting seat 6 and fixed by the locking bolt 71, so as to facilitate the disassembly of the clamp head cover 7. When the jaws are damaged, it is easy to replace, thereby improving convenience.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A hydraulic pliers for engineering demolition, comprising a hydraulic cylinder (1), characterized in that: The left end of the hydraulic cylinder (1) is provided with a fixed connection seat (2), the right end of the hydraulic cylinder (1) is provided with a movable connection seat (3), the inner side of the fixed connection seat (2) is rotatably connected to a jaw plate (4), the inner side of the movable connection seat (3) is rotatably connected to the same jaw plate (4), a connecting assembly (5) is provided between the two jaw plates (4), the lower end of the jaw plate (4) is fixedly connected to a mounting seat (6), the lower end of the mounting seat (6) is provided with a clamp head cover (7), and hydraulic connection ports (8) are provided on both the left and right sides of the upper end of the hydraulic cylinder (1).

2. The hydraulic pliers for engineering demolition according to claim 1, characterized in that: The output end of the hydraulic cylinder (1) is fixedly connected to the movable connection seat (3), the upper ends of the fixed connection seat (2) and the movable connection seat (3) are fixedly connected to a gripping handle (21), and the left end of the fixed connection seat (2) and the right end of the movable connection seat (3) are fixedly connected to a lifting hook (22).

3. The hydraulic pliers for engineering demolition according to claim 1, characterized in that: The two jaw plates (4) are symmetrically distributed, and arc-shaped grooves are arranged on the inner sides of the surfaces of the jaw plates (4).

4. The hydraulic pliers for engineering demolition according to claim 1, characterized in that: The connecting assembly (5) comprises a connecting frame (51), two connecting frames (51) are symmetrically arranged, one end of the connecting frame (51) is rotatably connected to the jaw plate (4), the other end of the connecting frame (51) is fixedly connected to a threaded rod (52), an adjusting sleeve (53) is arranged between the two threaded rods (52), and the left and right ends of the inner side of the adjusting sleeve (53) are fixedly installed with adjusting nuts (54).

5. The hydraulic pliers for engineering demolition according to claim 4, characterized in that: The adjusting nut (54) and the threaded rod (52) are threadedly connected, the surface of the adjusting sleeve (53) is provided with anti-slip grooves, and the connecting frame (51) is designed in a U-shaped structure.

6. The hydraulic pliers for engineering demolition according to claim 1, characterized in that: The pliers head cover (7) is sleeved with the mounting seat (6), a bolt hole (61) is provided on the surface of the mounting seat (6), and a locking bolt (71) is installed on the upper end of the surface of the pliers head cover (7).

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