CN2660199Y

CN2660199Y - Emergency hand oil circuit control valve of oil cylinder

Info

Publication number: CN2660199Y
Application number: CN 200320110643
Authority: CN
Inventors: 汤有泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-31
Filing date: 2003-10-31
Publication date: 2004-12-01
Anticipated expiration: 2013-10-31

Abstract

The utility model discloses a manual oil circuit control valve for oil tank emergency, pertaining to the art of hydraulic mechanical technology. The utility model includes a valve, a valve pocket, a spool, a left and a right end covers. The valve is provided with a hollow cavity penetrating from left to right, the valve pocket is matched with and also arranged in the hollow cavity, the spool is matched with and also arranged in the valve pocket, the left and right end covers are arranged on both end faces of the valve, the spool extends out of the left end cover, the valve pocket is provided with two sets of holes, each set has three holes on the circumference of 90 degrees spacing and holes are respectively A, B and C as well as A', B' and C', and the valve pocket is provided with a straight slot communicated with the through hole C and C'. The spool is provided with two annular troughs of less than 90 degrees round angle in the position corresponding to the two sets of holes, and the valve is provided with a channel directly leading to hole A, B, A', B' and the straight slot 5. Arranged on an oil return circuit of the executive oil tank, the utility model can unchain the locking state of the oil tank, so that the emergency device can make direct manual operation on the executive oil tank.

Description

The emergent oil passage control valve of manually using of oil cylinder

Technical field

The utility model relates to a kind of HYDRAULIC CONTROL SYSTEM valve, belongs to the hydraulic machinery technical field.

Background technique

In the prior art, hydraulic circuit control often will be used the execution oil cylinder, carry out oil cylinder under the electric oil pump effect, utilize the realization predetermined function of various hydrovalves and control valve, but often having oil to be trapped in when outage carries out in the oil cylinder, oil in the hydraulic jack can not advance, and can not go out, and makes the direct manually-operable to carrying out oil cylinder be difficult to carry out; Can take on oil circuit, to add hand pump at present reaching the purpose of emergency operation, but this method is time-consuming, effort, direct inadequately.

The model utility content

The purpose of this utility model provides the emergent oil passage control valve of manually using of a kind of oil cylinder, when making it be installed on the oil inlet and oil return pipeline of carrying out oil cylinder, realizing carrying out the oil cylinder two ends through simple valve position conversion directly is communicated with, remove the blocking of oil cylinder, to guarantee directly to carry out manually-operable to carrying out oil cylinder by panic equipment.

The purpose of this utility model is achieved in that the emergent oil passage control valve of manually using of a kind of oil cylinder, comprise valve body 4, valve pocket 2, spool 3, left end cap 1 and right end cap 8, be provided with in the valve body 4 level to about the cylindrical cavity that runs through, valve pocket 2 matches to merge with cylindrical cavity and is arranged in the cylindrical cavity, spool 3 matches to merge with valve pocket 2 and is positioned at valve pocket 2, left end cap 1 and right end cap 8 are individually fixed in the both ends of the surface of valve body 4, spool 3 ends stretch out in outside the left end cap 1, have two groups of holes at two different cross section places on the valve pocket 2, every group of hole comprises three holes of 90 degree at interval successively in a circumferential direction, one group is hole A, hole B, hole C, another group is hole A ', hole B ', hole C ', valve pocket 2 are provided with the straight trough 5 of intercommunicating pore C and hole C '; Along the circumferential direction have grooved ring shape 7 and the circular groove 9 that angle of circumference is not less than 90 degree with the two groups of corresponding cross section places in hole in place on the spool 3, valve body 4 is provided with the passage that leads to hole A, hole B, hole A ', hole B ' and straight trough 5 respectively.

When in oil-way system, using, with hole A, hole A ' connection control oil channel oil inlet and oil return pipe, the oil cylinder two ends are carried out in hole B, hole B ' connection, under normal operating condition, rotational valve core makes hole A and hole B communicate through circular groove 9, hole A ' and hole B ' communicate through circular groove 7 simultaneously, carry out oil cylinder and can not be subjected to of the present utility model the influence fully by control oil channel control; When outage, rotational valve core makes hole B and hole C communicate through circular groove 9, and hole B ' and hole C ' communicate through circular groove 7 simultaneously, through straight trough 5 left and right sides oil cylinder are directly connected, and can connect fuel tank by the passage through being communicated with straight trough 5 simultaneously, has eliminated entrap phenomenon; At this moment, under the panic equipment effect, carrying out in-oil cylinder piston can to-and-fro motion, finishes corresponding emergency operation.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is that the D-D of Fig. 1 is to sectional drawing.

Fig. 3 is that the E-E of Fig. 1 is to sectional drawing.

Fig. 4 is that the F-F of Fig. 1 is to sectional drawing.

Connection diagram when Fig. 5 uses for the utility model.

Wherein, 1 left end cap, 2 valve pockets, 3 spools, 4 valve bodies, 5 straight troughs, 6 passages, 7,9 circular grooves, 8 right end caps, 10 hydraulic jacks, A, B, C, A ', B ', C ' hole.

Embodiment

As figure, oil cylinder emergent manually with oil passage control valve mainly by valve body 4, valve pocket 2, spool 3, compositions such as left end cap 1 and right end cap 8, be provided with in the valve body 4 level to about the cylindrical cavity that runs through, valve pocket 2 matches to merge with cylindrical cavity and is arranged in the cylindrical cavity, spool 3 matches to merge with valve pocket 2 and is positioned at valve pocket 2, left end cap 1 and right end cap 8 are individually fixed in the both ends of the surface of valve body 4, spool 3 ends stretch out in outside the left end cap 1, have two groups of holes at two different cross section places on the valve pocket 2, every group of hole comprises three holes of 90 degree at interval successively in a circumferential direction, one group is hole A, hole B, hole C, another group is hole A ', hole B ', hole C ', valve pocket 2 are provided with the straight trough 5 of intercommunicating pore C and hole C '; Along the circumferential direction have grooved ring shape 7 and the circular groove 9 that angle of circumference is not less than 90 degree with the two groups of corresponding cross section places in hole in place on the spool 3, valve body 4 is provided with the passage that leads to hole A, hole B, hole A ', hole B ' respectively, also be provided with the passage 6 that leads to straight trough 5 on the valve body, for making things convenient for spool 3 to rotate, the part that can make spool 3 stretch out in left end cap 1 is connected with one handle.

When in oil-way system, using, with hole A, hole A ' connection control oil channel oil inlet and oil return pipe, oil cylinder 10 two ends are carried out in hole B, hole B ' connection, under normal operating condition, rotational valve core makes hole A and hole B communicate through circular groove 9, hole A ' and hole B ' communicate through circular groove 7 simultaneously, carry out oil cylinder and can not be subjected to of the present utility model the influence fully by control oil channel control; When outage, rotational valve core makes hole B and hole C communicate through circular groove 9, and hole B ' and hole C ' communicate through circular groove 7 simultaneously, through straight trough 5 left and right sides oil cylinder are directly connected, and can connect fuel tank by the passage through being communicated with straight trough 5 simultaneously, has eliminated entrap phenomenon; At this moment, under the panic equipment effect, the piston of carrying out in the oil cylinder 10 can to-and-fro motion, finishes corresponding emergency operation.

Claims

1, the emergent oil passage control valve of manually using of a kind of oil cylinder, it is characterized in that: described oil cylinder is emergent manually to comprise valve body (4) with oil passage control valve, valve pocket (2), spool (3), left end cap (1) and right end cap (8), be provided with in the valve body (4) level to about the cylindrical cavity that runs through, valve pocket (2) matches to merge with cylindrical cavity and is arranged in the cylindrical cavity, spool (3) matches to merge with valve pocket (2) and is positioned at valve pocket (2), left end cap (1) and right end cap (8) are individually fixed in the both ends of the surface of valve body (4), spool (3) end stretches out in outside the left end cap (1), valve pocket (2) is gone up and is had two groups of holes at two different cross section places, every group of hole comprises three holes of 90 degree at interval successively in a circumferential direction, one group is hole (A), hole (B), hole (C), another group is hole (A '), hole (B '), hole (C '), valve pocket (2) are provided with the straight trough (5) of intercommunicating pore (C) and hole (C '); Spool (3) is gone up and the two groups of corresponding cross section places in hole in place along the circumferential direction have grooved ring shape (7) and the circular groove (9) that angle of circumference is not less than 90 degree, and valve body (4) is provided with the passage that leads to hole (A), hole (B), hole (A '), hole (B ') and straight trough (5) respectively.