CN2710837Y

CN2710837Y - Manual hydraulic grip

Info

Publication number: CN2710837Y
Application number: CN 200420001126
Authority: CN
Inventors: 王昭智
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-16
Filing date: 2004-01-16
Publication date: 2005-07-20
Anticipated expiration: 2014-01-16

Abstract

The utility model relates to a manual hydraulic grip. The manual hydraulic grip is characterized in that the manual hydraulic grip comprises an oil cylinder; a vertical oil delivery pipe connected with a transversal oil delivery pipe is arranged in the oil cylinder, the oil delivery pipe is arranged with an oil inlet valve, an oil outlet valve and an oil drain valve, and the oil drain valve is a manual valve passing through the oil cylinder; a small plunger which is arranged in the vertical oil delivery pipe; a large plunger which is arranged out of the transversal oil delivery pipe; an offsetting spring which is arranged between the oil cylinder and the large plunger; two brackets which are arranged at one end of the oil cylinder, and two brackets are correspondingly arranged with slide ways; two slide blocks which are arranged between two brackets, two slide blocks are correspondingly arranged with pressing ports, and the slide block near inner side is fixedly connected with the outer end of the large plunger; a pin which is passed through the pin holes of two brackets; a handle, one end of the handle is connected with the oil cylinder, and the other end of the handle is positioned under two brackets; a pressing rod, one end of the pressing rod is hinged with the oil cylinder, the other end of the pressing rod and the handle are correspondingly positioned at the upper part of the oil cylinder, and the pressing rod near a hinge point is connected with the small plunger. The manual hydraulic grip has simple structure and convenient operation, and particularly combining with the connection method of steel bar joint developed by the applicant, the manual hydraulic grip can be widely used for connecting steel bar joints in various building construction sites.

Description

The hand-hydraulic pincers

Technical field

The utility model relates to a kind of compression tool, the hand-hydraulic pincers that use in particularly connecting about a kind of splice in architectural engineering.

Background technology

At present in building engineering construction, the connection of splice mainly is employing cold extrusion connection and is threaded, there is following problem in it: 1, the cold extrusion connection is that two reinforcing bars that needs connect are set in the steel sleeve head to head, compression sleeve then, the sleeve distortion also closely is adjacent on reinforcing bar, by frictional force two reinforcing bars are linked together, the extruding force that this method of attachment applies is little, bonding strength is not enough, the extruding force that applies is big, the intensity of sleeve pipe is damaged, so the general size of sleeve pipe is bigger, tube wall is also thicker, so not only waste steel, and the bigger dedicated hydraulic equipment of volume of needs outfit onsite moving, operation is very inconvenient, and present this method of attachment is eliminated gradually.2, be threaded and need process internal thread with connecting with sleeve earlier, the steel bar end that will need at the construction field (site) again to connect processes external screw thread, during connection, respectively two reinforcing bars is revolved in the internal thread that is located at sleeve head to head.Though this method is slightly littler than cold extrusion rolled steel dosage, many cover machining apparatus need be set at the scene, and need to be equipped with skilled machined personnel, and reinforcing bar to carry back and forth at processing site, the amount of labour is big, the cost height.

The applicant has invented the new method that a kind of reinforcing bar connects, and it is that it is bonding to adopt chemical adhesive to carry out when sleeve being carried out the mechanical presses distortion, and it compared with prior art saves steel, reduces processing capacity, the laborsaving convenience of execute-in-place.In this method of attachment, need a kind of manual squeezing instrument, substitute the extrusion equipment of heaviness of the prior art.

Summary of the invention

The purpose of this utility model provides a kind of volume little just at the above-mentioned problem that will solve, and execute-in-place is the hand-hydraulic pincers easily.

For achieving the above object, the utility model is taked following technical scheme: a kind of hand-hydraulic pincers is characterized in that it comprises: an oil cylinder; One vertical petroleum pipeline connects horizontal petroleum pipeline, and it is arranged in the described oil cylinder, and described petroleum pipeline is provided with inlet valve, delivery valve and gate gurgle valve, and described gate gurgle valve is one to pass the hand-operated valve of described oil cylinder; One valve piston, it is arranged in the described vertical petroleum pipeline; One big piston, it is arranged on outside the described horizontal petroleum pipeline; One back-moving spring, it is arranged between described oil cylinder and the described big piston; Two stands, it is arranged on described oil cylinder one end, and described two stands is relatively set with chute; Two slide blocks, it is slidingly installed between the described two stands, and described two slide blocks are relatively set with extrusion mouth, and are fixedly connected on the outer end of described big piston near inboard described slide block; One pin, it is located in the pin hole of described two stands; One handle, the one end connects described oil cylinder, and the other end is positioned at the below of described two stands; One depression bar, one end are hinged on the described oil cylinder, the relative described oil cylinder top that is positioned at of the other end with described handle, and the described depression bar of close described pin joint is connected with described valve piston.

Extrusion mouth on described two slide blocks is the inclination fin that is oppositely arranged in the described two slide block concave arcs.

The described two relative fins segment distance that staggers.

Angle that described fin tilts and described slide block vertical is 35 ° of angles.

The utility model is owing to take above technical scheme, it has the following advantages: 1, owing to the utility model handle on the other hand, another hands movement depression bar, drive valve piston driving big piston and move, and promote the slide block compression sleeve, therefore can exert great efforts and just can finish the connection of splice by big piston, the utility model does not consume electric power, use very flexiblely at the construction field (site),, more can fully show its superiority particularly in short of electricity even there is not the occasion of electricity.2, the utility model is owing to a side that the operating side of handle and depression bar all is arranged on squeezed joint, and therefore operation is very light, and whole stressed rationally even.3, the utility model is owing to consider that original cross rib is provided with direction on the reinforcing bar, and a reinforcing bar circumferentially has stagger a mutually cross rib of certain distance of two rows, therefore be provided with on two slide blocks of hydraulic tongs with reinforcing bar on the consistent fin of cross rib incline direction, and the fin that two slide blocks are relative some distances that staggers, this design makes the extruding force need not be very big, the distortion of sleeve is fallen between the cross rib of reinforcing bar exactly, and this is that prior art does not have.The utility model is simple in structure, and is easy to operate, particularly combines with the method for attachment of the splice of the applicant development, can be widely used in the connection of splice of various construction sites.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the utility model slide block structure schematic diagram

Fig. 3 is that schematic diagram is looked on Fig. 2 left side

Fig. 4 is a fin partial schematic sectional view among Fig. 3

Fig. 5 is the method for attachment schematic diagram that the applicant invents

The specific embodiment

As shown in Figure 1, the utility model comprises: an oil cylinder 1, in oil cylinder 1, be provided with a vertical petroleum pipeline 2 and connect horizontal petroleum pipeline 3, be provided with inlet valve 4, delivery valve 5 and gate gurgle valve 6 in the junction of petroleum pipeline 2,3, be check valve into and out of fuel tap 4,5, gate gurgle valve 6 is one to pass the hand-operated valve of oil cylinder 1.One valve piston 7, it is arranged in the vertical petroleum pipeline 2, a big piston 8, it is arranged on outside the horizontal petroleum pipeline 3, a back-moving spring 9, it is arranged between oil cylinder 1 and the big piston 8.The oil cylinder 1 of big piston 8 one ends is provided with two stands 10, is relatively set with chute 11 on two stands 10, is provided with two slide blocks 12,13 in chute 11, and a pin 14 is located in the pin-and-hole of two stands 10.Slide block 12 leans against on the pin 14, and slide block 13 is fixed on big piston 8 ends.One handle 15, the one end connects oil cylinder 1, and the other end is positioned at the below of two stands 10, a depression bar 16, the one end is hinged on the oil cylinder 1 by a pole 17, the other end is relative with the position of handle 15, is positioned at the top of oil cylinder 1, and the depression bar 16 of close pole 17 is provided with an external part 18, external part 18 is connected with valve piston 7, mobile depression bar 16 can drive valve piston 7 catenary motions, and drives big piston 8 horizontal movements.

As Fig. 2, Fig. 3, shown in Figure 4, two slide blocks 12, be respectively arranged with an arcs of recesses 19 on 13,20, at two arcs of recesses 19, an inclination fin 21 that is provided with respectively in 20, two opposing inclined fins 21 segment distance that staggers slightly, to adapt to reinforcing bar 22, the 23 two horizontal row ribs 24 that circumferentially are provided with, 25 distances that stagger (as shown in Figure 5), the reinforcing bar 22 that the angle of inclination of inclination fin 21 is connected with desire, 23 circumferential symmetrically arranged

cross ribs

24,25 angle of inclination unanimity, even when the utility model compression sleeve 26, position some deviation slightly also can fall into two cross ribs 24 like this, or two between the cross rib 25.As shown in Figure 4, the angle that fin 21 tilts can be 35 ° of angles with slide block 12,13 vertical, and the differential seat angle of

cross rib

24,25 is few on this and the reinforcing

bar

22,23.

When the utility model uses, at first pin 14 is taken out, slide block 12 is withdrawed from chute 11, two reinforcing bars, 22,23 joints that will package sleeve 26 again and be filled with adhesive 27 are placed on the concave arc place of slide block 13, insert slide block 12 and 14, one hand steered handles 15 of stopping of pin, a hand extruding depression bar 16, just can drive big piston 8 extruding slide blocks 13 by valve piston 7, make 19,20 pairs of crowded sleeves 26 of extrusion mouth of two slide blocks 12,13, realize that extruding connects.After an interface connection is finished, unclamp gate gurgle valve 6, petroleum pipeline 3 oil returns, big piston 8 drives slide block 13 and returns under the effect of back-moving spring 9.Then the utility model is moved to any position that need push on the sleeve 26, repeat above-mentioned steps.After all extruding points are finished in extruding, extract pin 14 again, withdraw from slide block 12, the utility model is taken off from the junction.

Only be preferred embodiment of the present utility model below, it should not limit protection domain of the present utility model, and all improvement according to the identity property that the utility model carried out also should be included in the protection domain of the present utility model.

Claims

1, a kind of hand-hydraulic pincers is characterized in that it comprises:

One oil cylinder;

One vertical petroleum pipeline connects horizontal petroleum pipeline, and it is arranged in the described oil cylinder, and described petroleum pipeline is provided with inlet valve, delivery valve and gate gurgle valve, and described gate gurgle valve is one to pass the hand-operated valve of described oil cylinder;

One valve piston, it is arranged in the described vertical petroleum pipeline;

One big piston, it is arranged on outside the described horizontal petroleum pipeline;

One back-moving spring, it is arranged between described oil cylinder and the described big piston;

Two stands, it is arranged on described oil cylinder one end, and described two stands is relatively set with chute;

Two slide blocks, it is slidingly installed between the described two stands, and described two slide blocks are relatively set with extrusion mouth, and are fixedly connected on the outer end of described big piston near inboard described slide block;

One pin, it is located in the pin hole of described two stands;

One handle, the one end connects described oil cylinder, and the other end is positioned at the below of described two stands;

One depression bar, one end are hinged on the described oil cylinder, the relative described oil cylinder top that is positioned at of the other end with described handle, and the described depression bar of close described pin joint is connected with described valve piston.

2, hand-hydraulic pincers as claimed in claim 1, it is characterized in that: the extrusion mouth on described two slide blocks is the inclination fin that is oppositely arranged in the described two slide block concave arcs.

3, hand-hydraulic as claimed in claim 2 pincers is characterized in that: the described two relative fins segment distance that staggers.

4, as claim 2 or 3 described hand-hydraulics pincers, it is characterized in that: angle that described fin tilts and described slide block vertical is 35 ° of angles.