CN202212878U

CN202212878U - Hydraulic multifunctional pincers

Info

Publication number: CN202212878U
Application number: CN2011203087189U
Authority: CN
Inventors: 马其诚; 李晔; 王光民; 臧秀明
Original assignee: TIANJIN TAIRUI RESCUE EQUIPMENT CO Ltd
Current assignee: TIANJIN TAIRUI RESCUE EQUIPMENT CO Ltd
Priority date: 2011-08-23
Filing date: 2011-08-23
Publication date: 2012-05-09
Anticipated expiration: 2021-08-23

Abstract

The utility model discloses a pair of hydraulic multifunctional pincers, which comprises a hydraulic shearing and expanding operation head, a pincers body, a sheath, a lifting handle, a hydraulic cylinder body, a commutation handle, a high pressure oil pipe, a low pressure oil pipe, a fast interface positive rabbet and a fast interface negative rabbet. The hydraulic shearing and expanding operation head is marked with a working area and the sheath is provided with a guard structure so as to ensure the safety of workers. The pincers body and the hydraulic cylinder body are rotatably connected together and the pincers body can be freely rotated within the angle range of 360 degrees relative to hydraulic cylinder body. Therefore, the hydraulic multifunctional pincers is more flexible and more convenient. The lifting handle is circular-arc-shaped and operators can continuously rotate the pincers body within the angle range of 270 degrees. A respectively independent bidirectional hydraulic lock is adopted creatively, so that the oil-way arrangement is more reasonable. Therefore, the hydraulic multifunctional pincers is smaller in volume, lighter in weight and more portable and convenient to operate, which is very suitable for the body shape characteristics of Asians.

Description

The multifunctional hydraulic pincers

Technical field

The utility model belongs to cuts the expansion career field, especially relates to a kind of multifunctional hydraulic pincers.

Background technology

Hydraulic pressure is cut and is expanded pincers; Can shear or expand; When breaking out of fire, traffic accident, earthquake disaster, its expansion and pull function can be used for door is pried open, propped or moving heavy object, separates metal or nonmetal structure etc.; It is sheared and holding function can be used for cutting off structures such as reinforcing bar guardrail, doorframe, cable and automobile frame; Can promptly give first aid to the victim or the rescue that are confined in the constrained environment to be in the pest that receives in the hazardous environment, therefore, be the indispensable break-in tool of fire-fighting, traffic police team, industrial and mining enterprises and other rescue departments.But present hydraulic pressure is cut to expand to clamp and is not significantly marked out hazardous area and place of safety; The operator very easily is strayed into the dangerous work district with hand and is injured; Propose the handle design and have defective, can not realize rotation caliper by a relatively large margin, working head can not rotate arbitrarily its use is restricted.

Summary of the invention

The problem that the utility model will solve provides a kind of multifunctional hydraulic safe and easy to use pincers, especially is fit to shear or expanding.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the multifunctional hydraulic pincers comprise hydraulic pressure cut expand work head, caliper, sheath, carry handle, cloudy mouthful of hydraulic cylinder, reversing handle, high-pressure oil pipe, low pressure pipe, fast interface Yang Kou, fast interface; Said hydraulic pressure is cut and is expanded work head inside and be provided with connecting rod, is positioned at the front end of caliper, and sheath is positioned at the rear end of caliper, and hydraulic pressure is cut and expanded work head and be marked with to cut and expand the working region, and this working region be a colour, and jacket surface is provided with the alarm and prompt structure; Carry after the handle next-door neighbour sheath, carrying the handle tail end is hydraulic cylinder, and hydraulic cylinder inside is provided with piston, A check valve, B check valve, A hydraulic lock, B hydraulic lock, A safety valve, B safety valve; Reversing handle inside is provided with hydraulic pressure and cuts expansion device reversal valve.

Further, the said handle of carrying is circular-arc.

Further, said caliper is connected with hydraulic cylinder is rotatable.

Further, A hydraulic lock and B hydraulic lock are bidirectional hydraulic lock independently separately.

Advantage and the good effect that the utlity model has are: the working region is indicated, make the hints on operation of this utility model of operator's intuitivism apprehension; And the warning structure is set on sheath, guarantee staff's safety; Be connected caliper and hydraulic cylinder are rotatable, realized that caliper can do 360 ° of rotations arbitrarily with respect to hydraulic cylinder, increased the flexibility of multifunctional hydraulic pincers, more convenient; To carry handle and be circular-arc, the operator can be continuous 270 ° of rotation calipers; And because the utility model deft design, volume and weight is all less, meets very much Asian build characteristics, so operation is very light; The creationary use of the utility model is bidirectional hydraulic lock independently separately, and it is more reasonable that oil circuit is arranged, helps volume and reduce, weight saving.

Description of drawings

Fig. 1 is the structural representation of the utility model multifunctional hydraulic pincers;

Fig. 2 is the side view of carrying handle of the utility model multifunctional hydraulic pincers;

Fig. 3 is the principle schematic of the utility model multifunctional hydraulic pincers;

Among the figure: 1, hydraulic pressure is cut the expansion work head; 2, caliper; 3, sheath; 4, carry handle; 5, hydraulic cylinder; 6, reversing handle; 7, high-pressure oil pipe; 8, low pressure pipe; 9, fast interface Yang Kou; 10, fast interface is cloudy mouthful; 11, connecting rod; 12, piston; 13, hydraulic pressure is cut and is expanded the device reversal valve; 14, A check valve; 15, B check valve; 16, A hydraulic lock; 17, B hydraulic lock; 18, A safety valve; 19, B safety valve; 20, pump; 21, pump oil cylinder; 22, backflow position.

The specific embodiment

As shown in Figure 1, the utility model multifunctional hydraulic pincers comprise hydraulic pressure cut expand work head 1, caliper 2, sheath 3, carry handle 4, cloudy mouthful 10 of hydraulic cylinder 5, reversing handle 6, high-pressure oil pipe 7, low pressure pipe 8, fast interface sun mouthfuls 9, fast interface;

Hydraulic pressure is cut and is expanded work head 1 inside and be provided with connecting rod 11, is positioned at the front end of caliper 2, and sheath is positioned at the rear end of caliper 2, and hydraulic pressure is cut and expanded work head 1 and be marked with to cut and expand the working region, and this working region be a colour, makes the hints on operation of this utility model of operator's intuitivism apprehension.Sheath 3 surfaces are provided with the alarm and prompt structure, and this alarm and prompt structure is made up of a colored cover strip, and its effect is to make operating personnel distinguish dangerous work district and place of safety, avoid operator and other people member that hand is strayed into the dangerous work district and injured;

As shown in Figure 2, carry handle 4 and be circular-arc, the operator can be continuous 270 ° of rotation calipers arbitrarily, operation is very easy; And because the utility model deft design, volume and weight is all less, meets very much Asian build characteristics, so operation is very light; High-pressure oil pipe 7, low pressure pipe 8 all adopt the Kafra fiber material, and it is higher that its intensity is compared traditional oil pipe, and withstand voltage better, weight is lighter.

Reversing handle 6 inside are provided with hydraulic pressure and cut expansion device reversal valve 13; Cut when expanding device reversal valve 13 and being positioned at meta when said hydraulic pressure, promptly under the reflux state, caliper 2 can be done continuous 360 ° of rotations arbitrarily with respect to hydraulic cylinder 5; The rotatable connection of two parts; Increased the flexibility of instrument in all angles, made the operator in use more convenient, rescue efficiency is higher.

As shown in Figure 3, practical two bidirectional hydraulic locks independently of the utility model, it is more reasonable that oil circuit is arranged, helps volume and reduce, weight saving.

During use the utility model multifunctional hydraulic pincers, Yang Kou, the cloudy mouth of positive mouthful 9 of said fast interface and said fast interface the moon mouthful external pump 20 of 10 difference, oily by pump 20 to the utility model pump.When said reversing handle 6 did not rotate, promptly said hydraulic pressure was cut expansion device reversal valve 13 and is positioned at meta, and 22 places, backflow position are reflux states, and piston 12 does not move, and the multifunctional hydraulic pincers are not worked.

When reversing handle 6 is rotated counterclockwise; Said hydraulic pressure is cut expansion device reversal valve 13 oil feeding line is communicated with the oil circuit that leads to pump oil cylinder 21 back cavities; The hydraulic oil with certain pressure that is provided by pump 20 is through A check valve 14 and promote A hydraulic lock 16 and supply toward pump oil cylinder 21 back cavities; Utilize the fluid pressure transmission to equate that principle produces bigger external force output to 12 oilings of large end face piston, the hydraulic oil that has certain pressure promotes said piston 12 and moves outside hydraulic cylinder 5 along axis, through linkage; The application lever principle is exerted all one's strength and is further amplified, to accomplish corresponding operation; B check valve 15 is opened in the motion of said A hydraulic lock 16 simultaneously, and hydraulic oil is released from hydraulic cylinder 5 ante-chambers under the promotion of said piston 12, and this moment, the utility model was in the shearing work state;

When said reversing handle 6 turns clockwise; Said hydraulic pressure is cut and is expanded device reversal valve 13 oil feeding line is communicated with the oil circuit that leads to pump oil cylinder 21 ante-chambers, and the hydraulic oil with certain pressure that is provided by pump 20 is through B check valve 15 and promote past pump oil cylinder 21 ante-chambers of B hydraulic lock 17 confessions, utilizes above-mentioned principle; Through hydraulic oil transmission and amplification pressure; Promote said piston 12 and move in hydraulic cylinder 5 along axis, the application lever principle is exerted all one's strength and is further amplified, to accomplish corresponding operation; A check valve 14 is opened in the motion of said B hydraulic lock 17 simultaneously, and hydraulic oil is released from hydraulic cylinder 5 back cavities under the promotion of said piston 12, and this moment, the utility model was in the expanding state.

In the tool work process, the utlity model has A safety valve 18, B safety valve 19, be respectively the certain pressure of oil-feed oil pipe and logical ante-chamber oil pipe restriction; When the oil circuit superpressure; Safety valve is opened the overflow pressure release, with the potential safety hazard of avoiding causing because of superpressure, wherein; A safety valve 18 is interior overflowing, and B safety valve 19 is excessive.

Although top combination figure is described the utility model; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the utility model.

Claims

1. multifunctional hydraulic pincers is characterized in that: comprise hydraulic pressure cut expand work head (1), caliper (2), sheath (3), carry handle (4), hydraulic cylinder (5), reversing handle (6), high-pressure oil pipe (7), low pressure pipe (8), fast interface Yang Kou (9), fast interface cloudy mouthful (10);

Said hydraulic pressure is cut expansion work head (1) inside and is provided with connecting rod (11); Be positioned at the front end of caliper (2), sheath (3) is positioned at the rear end of caliper (2), and hydraulic pressure is cut and expanded work head (1) and be marked with to cut and expand the working region; This working region is colored, and sheath (3) surface is provided with the alarm and prompt structure;

Carry handle (4) next-door neighbour's sheath (3) afterwards, carrying handle (4) tail end is hydraulic cylinder (5), and hydraulic cylinder (5) inside is provided with piston (12), A check valve (14), B check valve (15), A hydraulic lock (16), B hydraulic lock (17), A safety valve (18), B safety valve (19); Reversing handle (6) inside is provided with hydraulic pressure and cuts expansion device reversal valve (13).

2. multifunctional hydraulic pincers according to claim 1, it is characterized in that: the said handle (4) of carrying is circular-arc.

3. multifunctional hydraulic pincers according to claim 1 is characterized in that: said caliper (2) and rotatable connection of hydraulic cylinder (5).

4. multifunctional hydraulic according to claim 1 pincers is characterized in that: A hydraulic lock (16) and B hydraulic lock (17) are bidirectional hydraulic lock independently separately.