CN201836134U

CN201836134U - Manual reversing valve

Info

Publication number: CN201836134U
Application number: CN2010201884420U
Authority: CN
Inventors: 朱静明; 陈俊杰
Original assignee: Shanghai Huadao Hydraulic Equipment Manufacturing Co Ltd
Current assignee: Shanghai Huadao Hydraulic Equipment Manufacturing Co Ltd
Priority date: 2010-05-11
Filing date: 2010-05-11
Publication date: 2011-05-18
Anticipated expiration: 2020-05-11

Abstract

The utility model discloses a manual reversing valve used for solving the problem that the conventional manual reversing valve wastes labor during operation and has low control accuracy. The manual reversing valve comprises a handle, a handle shaft, a handle cover, a shift lever, a positioning component, a push rod, a main valve body and a main valve core, and is characterized in that the handle is mounted on the handle shaft; the handle shaft is mounted in a shaft hole on the shaft cover; the upper end of the shift lever is mounted in the handle shaft, and the lower end of the shift lever is mounted in the push rod; the push rod is mounted in a center hole on the handle cover; the positioning component is mounted in a positioning component hole below the handle cover; and the main valve core is mounted in a valve core hole on the main valve body. The manual reversing valve is applied to a hydraulic system to control the switching of oil circuits.

Description

Hand-operated direction valve

Technical field

The utility model relates to a kind of valve, particularly relates to a kind of selector valve.

Background technique

Valve is a kind of control unit commonly used in the hydraulic control system, and wide in variety, wide application, hand-operated direction valve are one of them kinds, and it is to utilize handle to pass through connecting rod directly to promote main valve plug work.Its major defect is: 1, utilize handle to pass through connecting rod and directly promote main valve plug work, very effort operates; 2, because of utilizing connecting rod to promote spool work,, influence control accuracy so easily produce swing in the course of the work.Therefore design be must be improved and the ubiquitous operation effort of hand-operated direction valve, the problem that control accuracy is low overcome.

The model utility content

Purpose in model utility is that a kind of novel manual selector valve that can solve defectives such as operation is required great effort, control accuracy is low will be provided.

The utility model is achieved in that hand-operated direction valve comprises operating grip (being handle), handle shaft, handle cover, driving lever, positioning component, push rod, main valve body and main valve plug, wherein handle is contained on the handle shaft, handle shaft is contained in the axis hole on the handle cover, the driving lever upper end is contained in the handle shaft, the lower end is contained in the push rod, push rod is contained in the center hole on the handle cover, positioning component is contained in the travel position that is used to limit push rod in the positioning component hole of handle cover below, and main valve plug is contained in the main valve plug hole on the main valve body.

The hand-operated direction valve of making according to technique scheme compared with prior art, its main feature is: utilize lever principle to realize utilizing little moment to produce high pulling torque and promote the main valve plug motion, laborsaving so operate, rotatablely move and substitute original direct connecting rod promotion, solve vibration problems, improved control accuracy.

Description of drawings

Fig. 1, existing hand-operated direction valve structural representation;

Fig. 2, the utility model hand-operated direction valve B-B sectional view;

Fig. 3, the utility model hand-operated direction valve structural representation.

Embodiment

Below in conjunction with accompanying drawing the utility model is done further narration.

Hand-operated direction valve of the present utility model such as Fig. 2, shown in Figure 3 comprising: handle 1, handle shaft 2, handle cover 3, driving lever 4, positioning component 5, push rod 6, main valve body 7 and main valve plug 8, wherein handle 1 is contained on the handle shaft 2, handle shaft 2 is contained in the axis hole on the handle cover 3, driving lever 4 upper ends are contained in 2 li of handle shaft, the lower end is contained in 6 li of push rods, push rod 6 is contained in the center hole on the handle cover 3, positioning component 5 is contained in the positioning component hole of handle cover below, and main valve plug 8 is contained in the main valve plug hole on the main valve body 7.

During the hand-operated direction valve work that is made into according to said structure, at first utilize handle 1 to drive handle shaft 2 rotations, the handle shaft rotation drives driving lever 4 and promotes push rods 6 and do the level action, drives main valve plug immediately and does displacement, realizes that oil circuit switches.

Claims

1. hand-operated direction valve, it is characterized in that this hand-operated direction valve comprises handle (1), handle shaft (2), handle cover (3), driving lever (4), positioning component (5), push rod (6), main valve body (7) and main valve plug (8), wherein handle (1) is contained on the handle shaft (2), handle shaft (2) is contained in the axis hole on the handle cover (3), driving lever (4) upper end is contained in handle shaft (2) lining, the lower end is contained in push rod (6) lining, push rod (6) is contained in the center hole on the handle cover (3), positioning component (5) is contained in the positioning component hole of handle cover below, and main valve plug (8) is contained in the main valve plug hole on the main valve body (7).