CN203516258U

CN203516258U - Novel manually rotating type reversing valve

Info

Publication number: CN203516258U
Application number: CN201320626972.2U
Authority: CN
Inventors: 许亚峰; 黄坤; 张辉; 马思宇; 韩曼芬
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2013-10-11
Filing date: 2013-10-11
Publication date: 2014-04-02
Anticipated expiration: 2023-10-11

Abstract

The utility model relates to a novel manually rotating type reversing valve. The novel manually rotating type reversing valve comprises a valve body, a rear cover, a front cover and a valve body hole, wherein the front cover and the rear cover are arranged at the two ends of the valve body, and the valve body hole is formed in the valve body. A valve element is arranged in the valve body hole. The diameter of the section, close to the front end of the valve body, of the valve element is larger than that of the section, close to the rear end of the valve body, of the valve element. The large-diameter segment of the valve element is provided with a thread segment. The thread segment is in threaded connection with threads on the corresponding position of the valve body and threads on the corresponding position of the front cover. A fastening nut is arranged at one end of the thread segment. One end face of the fastening nut is attached to the end face of the front cover. One end of the valve element is connected with a rotary handle through a stopper screw. The rotary handle is arranged outside the front cover. Through the rotary handle, adjustment of the thread segment and locking of the fastening nut, on one hand, the adjustment of the opening degree of an oil port can be achieved according to requirements, and on the other hand, it can be guaranteed that the valve element can continue to maintain on the working position after the rotary handle is rotated to remove away external force.

Description

A kind of novel manual rotating type change valve

Technical field

The utility model relates to field of hydraulic control, relates in particular to a kind of novel manual rotating type change valve.

Background technique

The purposes of selector valve is to utilize spool with respect to the relative movement of valve body, realize the switching of oil circuit or change the direction of liquid stream, thereby realize hydraulic actuator startup, stop or the conversion of moving direction.The kind of selector valve has a lot, during according to the spool Shape Classification of selector valve, has three kinds of sliding valve style, rotary valve and ball-valve types; According to handling, control mode is divided into manual, motor-driven, electromagnetism, surges, electricity surges, pneumatic etc.

At present, often use hand-operated direction valve in hydraulic system, it is mainly to rely on hand lever to handle drive valve core movement and realize commutation, by handling orientation type after spool commutation, has two kinds of steel ball locate mode and spring automatic reset formulas.The spool of steel ball locate mode is to rely on steel ball location, on setting sleeve, have locating slot, the spacing of locating slot is the stroke of spool, after spool moves into place, locking ball is just stuck in corresponding locating slot, although this mode is simple in structure, the opening amount of hydraulic fluid port regulates difficulty, makes the flow that flows to load be difficult to adjusted; The spool of spring automatic reset formula relies on the effect appliance for releasing single of Returnning spring to get back to meta, compare with steel ball locate mode, the spool displacement distance of spring return type can be regulated by handle, although can realize the adjusting of the opening amount size of hydraulic fluid port, but after the steering force on removing handle, spool is got back to meta immediately, cannot make spool continue to remain on working position.

Model utility content

The utility model is in order to overcome deficiency of the prior art, a kind of novel manual rotating type change valve is provided, this selector valve can be realized the adjusting of the opening amount size of hydraulic fluid port on the one hand, can guarantee that on the other hand spool continues to remain on working position after removing external force.

The utility model is to be achieved through the following technical solutions:

A kind of novel manual rotating type change valve, comprise valve body, be arranged on bonnet and the protecgulum at valve body two end part, and be arranged on the valve body hole in valve body, in described valve body hole, spool is installed, described spool is greater than the valve core diameter near valve rear end place near the valve core diameter at valve body front position place, on spool enlarged diameter section, be provided with thread section, thread section and valve body, in protecgulum, the screw thread of corresponding part is screwed together, one end of described thread section is provided with tightening nut, one end face of tightening nut and the laminating of the end face of protecgulum, the end of described spool is connected with handle with sleeve by Cock screw, described handle with sleeve is arranged on outside protecgulum.

As optimal technical scheme of the present utility model, the reach that the reach that described valve body screws togather with thread section screws togather with thread section with protecgulum equates.

Its basic functional principle is: the utility model in use, by manual rotation, be arranged on the handle with sleeve outside protecgulum, thread section on spool enlarged diameter section is threaded with the screw thread formation on valve body, thereby realizes the motion of spool, after arriving movement position, by tightening nut, be locked, guarantee that it,, not because External Force Acting moves, prevents from removing after the external force on handle with sleeve, due to the effect of spring, spool is got back to meta, so just can guarantee that spool is in working position.When needs continue to regulate, loosening tightening nut, then regulating rotary active handle, can realize spool in different working positions, to guarantee to realize commutation function.

Compared with prior art, the beneficial effects of the utility model are: the utility model passes through handle with sleeve, and regulate and the locking of tightening nut by thread section, can realize as required the adjusting of hydraulic fluid port opening amount size on the one hand, can guarantee that on the other hand spool continues to remain on working position after handle with sleeve removes external force.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of handle with sleeve in the utility model.

In figure: 1, valve body; 2, spool; 3, Cock screw; 4, undercut groove; 5, shoulder; 6, spring; 7, bonnet; 8, protecgulum; 9, thread section; 10, tightening nut; 11, handle with sleeve.

Embodiment

In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Refer to Fig. 1 and Fig. 2, wherein, Fig. 1 is structural representation of the present utility model, and Fig. 2 is the structural representation of handle with sleeve in the utility model.

Described a kind of novel manual rotating type change valve, comprise valve body 1, be arranged on bonnet 7 and the protecgulum 8 at valve body 1 two end part, the material of protecgulum 8 and bonnet 7 is aluminium alloy compression casting moulding, in described valve body 1, be provided with valve body hole, spool 2 is installed in described valve body hole, the rear end of spool 2 is connected with spring 6, and spring 6 is connected on the spring seat in bonnet 7; In valve body hole the inside, be provided with annular undercut groove 4, each undercut groove 4 communicates with the corresponding main hydraulic fluid port (P, A, B, T) of opening on valve body 1 bottom surface, on spool 2, equally also have circular groove, when the shoulder 5 between spool 2 circular grooves hides undercut groove 4, the logical oil circuit mouth of this groove is cut off, when shoulder 5 does not hide undercut groove 4, this oil circuit just can be connected with other oil circuits.

Described spool 2 is greater than spool 2 diameters near valve body 1 rear end near spool 2 diameters at valve body 1 front position place, on spool 2 enlarged diameter sections, be provided with thread section 9, thread section 9 is screwed together with the screw thread of valve body 1, protecgulum 8 interior corresponding parts, and the reach that described valve body 1 screws togather with thread section 9 equates with the reach that protecgulum 8 screws togather with thread section 9; One end of described thread section 9 is provided with tightening nut 10, an end face of tightening nut 10 and the laminating of the end face of protecgulum 8, and the end of described spool 2 is connected with handle with sleeve 11 by Cock screw 3, and described handle with sleeve 11 is arranged on outside protecgulum 8.By manual rotation, be arranged on the handle with sleeve 11 outside protecgulum 8, because the thread section 9 on spool 2 enlarged diameter sections is threaded with the screw thread formation on valve body 1, when turning clockwise handle with sleeve 11, spool 2 moves right, and after arriving movement position, by tightening nut 10, is locked, guarantee that it is not because External Force Acting moves, can realize as required the adjusting of hydraulic fluid port opening amount size, oil circuit path is now: P leads to B, and T leads to A.After the external force removing on handle with sleeve 11, prevent the effect due to spring 6 like this, spool 2 is got back to meta, so just can guarantee that spool 2 is in working position.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a novel manual rotating type change valve, comprise valve body (1), be arranged on bonnet (7) and the protecgulum (8) at valve body (1) two end part, and be arranged on the valve body hole in valve body (1), spool (2) is installed in described valve body hole, it is characterized in that, described spool (2) is greater than the valve core diameter near valve body (1) rear end near the valve core diameter at valve body (1) front position place, on spool (2) enlarged diameter section, be provided with thread section (9), thread section (9) and valve body (1), the screw thread of the interior corresponding part of protecgulum (8) is screwed together, one end of described thread section (9) is provided with tightening nut (10), the end face laminating of one end face of tightening nut (10) and protecgulum (8), the end of described spool (2) is connected with handle with sleeve (11) by Cock screw (3), described handle with sleeve (11) is arranged on outside protecgulum (8).

2. a kind of novel manual rotating type change valve according to claim 1, is characterized in that, the reach that the same thread section of described valve body (1) (9) screws togather equates with the reach that the same thread section of protecgulum (8) (9) screws togather.