Manual hydraulic clamp

Abstract

The utility model relates to the technical field of electric power installation tools, in particular to a manual hydraulic clamp. Comprising a clamp body, a handle and a clamp head are arranged at the two ends of the clamp body respectively, two clamp beaks are arranged on the side, away from the handle, of the clamp head, sliding grooves are formed in the inner sides of the clamp beaks, through holes are formed in the ends of the clamp beaks, stop pins can be inserted into the through holes, and a pressing rod and an oil return rotary knob are further arranged on the side face of the clamp body. Inserting rods are arranged on the two sides of the elastic frame, threaded holes are formed in the two sides of one clamp beak, a penetrating inserting hole is formed in the pressing piece, a screw penetrates through the inserting hole and is connected with the threaded holes, the inserting rods can be pressed between the pressing piece and the side face of the clamp beak provided with the threaded holes, and at the moment, the two clamp beaks are located in the elastic frame. According to the utility model, a wire or a wire nose does not need to be held by one hand, which is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power installation tools, in particular to a manual hydraulic pliers. Background Art

[0002] In the power industry, manual hydraulic pliers are often needed to crimp the wires, cables or terminals of equipment. The manual hydraulic pliers of the prior art include a pliers body, one end of the pliers body is a pliers head and the other end is a handle, a pressure rod and an oil return knob are also arranged on the side of the pliers body, the pliers head includes two pliers beaks, a slide groove is arranged on the inner side of the pliers beak, a through hole is arranged on the end of the pliers beak away from the handle, and also includes a plurality of pressure block pairs of different specifications, the pressure block pair includes two pressure blocks, a regular hexagonal pressure profile is arranged in the middle of the pressure block pair, the outer dimensions of all the pressure block pairs are the same but the dimensions of the pressure profiles are different, when in use, one pressure block pair is placed in the slide groove, and then the stop pin is inserted into the through hole, and the crimping operation can be performed, but when crimping, one hand is required to hold the wire or the wire nose all the time and place it at the pressure profile, and the other hand is required to reciprocate the pressure rod until the pressure block pair slightly presses the wire nose, then the hand holding the wire nose can be released (otherwise the wire nose will fall from the pressure profile), which is inconvenient, and then both hands can be used to reciprocate the pressure rod until the crimping is completed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a manual hydraulic pliers in view of the above-mentioned technical deficiencies.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a manual hydraulic pliers, including a pliers body, wherein both ends of the pliers body are respectively provided with a handle and a pliers head, two pliers beaks are provided on the side of the pliers head away from the handle, the inner side of the pliers beak is provided with a slide groove, the end of the pliers beak is provided with a through hole, and the stop pin can be inserted into the through hole, and the side of the pliers body is also provided with a pressure rod and an oil return knob, and also includes a pressing plate and a U-shaped elastic frame, and the two sides of the elastic frame are provided with insertion rods, one of the pliers beaks is provided with threaded holes on both sides, and a penetrating socket is provided on the pressing plate. The screw passes through the socket and is connected with the threaded hole so that the insertion rod can be pressed between the pressing plate and the side of the pliers beak provided with the threaded hole. At this time, the two pliers beaks are located in the elastic frame.

[0005] Preferably, a pressing groove is provided on the inner side of the pressing sheet.

[0006] Preferably, the cross section of the groove is an isosceles triangle.

[0007] Preferably, the pressing groove is located below the insertion hole.

[0008] Preferably, a folded edge is provided on one side of the pressing piece, and the folded edge contacts the inner side surface of the beak of the forceps provided with a threaded hole so that the pressing piece is not easy to rotate. Preferably, a concave platform is provided at the outer end of the slide groove, at least one side surface of the concave platform is lower than the surface of the slide groove, and the through hole is located in the concave platform.

[0009] Beneficial effects: threaded holes are arranged on both sides of a pliers beak, and screws are connected to the threaded holes after passing through the insertion holes on the pressing plate, so that the insertion rod on the elastic frame can be pressed tightly against the side of the pressing plate and the pliers beak with the threaded holes, thereby fixing the position of the elastic frame. The elastic frame can press the wire nose into the pressing mold of the pressing block away from the pliers handle, so that there is no need to hold the wire or the wire nose with one hand all the time, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The figure is a schematic diagram of the structure of a manual hydraulic pliers.

[0011] Figure 2 for Figure 1 Magnified view of point I in the middle.

[0012] Figure 3 It is a structural schematic diagram of the elastic frame.

[0013] Figure 4 It is a schematic diagram of the tableting structure.

[0014] In the figure: 1, pliers body; 2, pressure rod; 3, pliers beak; 31, concave platform; 32, slide groove; 4, elastic frame; 41, insertion rod; 5, pressure piece; 51, pressure groove; 52, folding edge; 6, stop pin; 7, pressure block; 8, screw. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Specific implementation method: Combination Figure 1-4As shown, a manual hydraulic pliers comprises a pliers body 1, wherein the two ends of the pliers body 1 are respectively provided with a handle and a pliers head, and two pliers beaks 3 are provided on the side of the pliers head away from the handle, and a slide groove 32 is provided on the inner side of the pliers beak 3, and a through hole is provided at the end of the pliers beak 3, and a stop pin 6 can be inserted into the through hole, and a pressure rod 2 and an oil return knob are also provided on the side of the pliers body 1, and also comprises a pressing plate 5 and a U-shaped elastic frame 4, and an insertion rod 41 is provided on both sides of the elastic frame 4, and the insertion rod 41 is preferably perpendicular to the plane where the elastic frame 4 is located, and threaded holes are provided on both sides of one of the pliers beaks 3, and a through insertion hole is provided on the pressing plate 5, and a screw 8 is passed through the insertion hole and connected with the threaded hole so that the insertion rod 41 can be pressed between the pressing plate 5 and the side of the pliers beak 3 provided with the threaded hole, and at this time, the two pliers beaks 3 are located in the elastic frame 4. When in use, the position of the elastic frame 4 can be adjusted according to the specifications of the pressing block 7, so that the elastic frame 4 can press the wire nose into Figure 2 The pressing block 7 on the middle right side is pressed so that the line nose will not fall off after letting go.

[0017] In this embodiment, a pressing groove 51 is provided on the inner side of the pressing plate 5. The cross-section of the pressing groove 51 can be rectangular, isosceles trapezoidal or triangular, etc., preferably an isosceles triangle. One side of the insertion rod 41 is located in the pressing groove 51 and the other side protrudes from the pressing groove 51, so that the other side of the insertion rod 41 can be pressed on the side of the forceps beak 3. At this time, the elastic frame 4 is difficult to rotate relative to the pressing plate 5.

[0018] In this embodiment, the pressing groove 51 is located below the insertion hole. Compared with the case where the pressing groove 51 is located above the insertion hole, the lower end of the elastic frame 4 is farther away from the pressing profile, so that the position of the elastic frame 4 corresponding to the wire nose is easier to move to the left when inserting or removing the wire nose.

[0019] In this embodiment, a folded edge 52 is provided on one side of the pressing piece 5 , and the folded edge 52 contacts the inner side surface of the forceps beak 3 provided with a threaded hole so that the pressing piece 5 is not easy to rotate.

[0020] In this embodiment, combined with Figure 2 As shown, a recess 31 is provided at the outer end of the slide groove 32, and at least one side of the recess 31 is lower than the surface of the slide groove 32. The through hole is located in the recess 31. In this case, a protrusion is also provided on the outer side of the pressure block 7 on the right side. The protrusion can enter the recess 31 but cannot enter the slide groove 32. The depth of the recess 31 should be set appropriately so that after the stop pin 6 is inserted, the pressure block 7 on the right side will not move significantly to the left.

[0021] Working principle: Combination Figure 2As shown, loosen the screw 8 to adjust the position of the elastic frame 4 to the left and right, then tighten the screw 8 to fix the position of the elastic frame 4, then insert the wire nose with the wire inserted between the elastic frame 4 and the pressure block 7 on the right and make it located in the press mold. At this time, you don't need to continue to hold the wire nose with your hands. Then you can press the pressure rod 2 back and forth with both hands until the crimping is completed, then turn the oil return knob to loosen the pressure block 7 on the left, and then pull the wire nose out. When the specifications of multiple wire noses to be crimped are the same, the utility model will bring obvious convenience to the operator.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A manual hydraulic pliers, comprising a pliers body (1), wherein the two ends of the pliers body (1) are respectively provided with a handle and a pliers head, wherein the side of the pliers head away from the handle is provided with two pliers beaks (3), wherein the inner side of the pliers beaks (3) is provided with a slide groove (32), wherein the end of the pliers beaks (3) is provided with a through hole, wherein a stop pin (6) can be inserted into the through hole, and the side of the pliers body (1) is further provided with a pressure rod (2) and an oil return knob, wherein: It also comprises a pressing sheet (5) and a U-shaped elastic frame (4), wherein two sides of the elastic frame (4) are provided with insertion rods (41), two sides of one of the pliers beaks (3) are provided with threaded holes, and a through insertion hole is provided on the pressing sheet (5), and a screw (8) passes through the insertion hole and is connected to the threaded hole so that the insertion rod (41) is pressed between the pressing sheet (5) and the side surface of the pliers beak (3) provided with the threaded hole, and at this time, the two pliers beaks (3) are located in the elastic frame (4).

2. A manual hydraulic pliers according to claim 1, characterized in that: A pressing groove (51) is provided on the inner side of the pressing sheet (5).

3. A manual hydraulic pliers according to claim 2, characterized in that: The cross section of the pressing groove (51) is an isosceles triangle.

4. A manual hydraulic pliers according to claim 2, characterized in that: The pressing groove (51) is located below the insertion hole.

5. The manual hydraulic pliers according to claim 1, characterized in that: A folded edge (52) is provided on one side of the pressing piece (5), and the folded edge (52) contacts the inner side surface of the beak (3) provided with a threaded hole so that the pressing piece (5) is not easy to rotate.

6. A manual hydraulic pliers according to claim 1, characterized in that: A concave platform (31) is provided at the outer end of the slide groove (32), at least one side surface of the concave platform (31) is lower than the surface of the slide groove (32), and the through hole is located in the concave platform (31).

Images