CN2833276Y

CN2833276Y - Direct-acting valve

Info

Publication number: CN2833276Y
Application number: CN 200520116025
Authority: CN
Inventors: 刘传枝; 阮敖齐; 张磊
Original assignee: Ningbo CSR Times Transducer Technology Co Ltd
Current assignee: Ningbo CRRC Times Transducer Technology Co Ltd
Priority date: 2005-10-14
Filing date: 2005-10-14
Publication date: 2006-11-01
Anticipated expiration: 2015-10-14

Abstract

The utility model relates to a direct acting valve used in a feces collecting device for opening and closing an external pipeline valve hole, which comprises an upper cover plate and a lower cover plate, wherein a valve sheet which can slide is arranged in a passage hole fully surrounded by the upper cover plate and the lower cover plate. The valve sheet is connected with a cylinder by a connecting piece and runs under the control of the cylinder, and the valve sheet has an opening end point and a closing end point to realize the opening and the closing of a valve hole. The utility model has the improvement that self-lubricating O-shaped sealing rings which are respectively distributed on the valve sheet and under the valve sheet are arranged in grooves of the upper cover plate and the lower cover plate near the valve hole; a sealing element is arranged at the slide running periphery of the valve sheet, and an exhaust connecting opening is arranged on the upper cover plate or the lower cover plate simultaneously. The utility model solves the sealing problem and makes the valve sealed reliably in a closing state. The guidance performance and the lubricating property of the slide of the valve sheet are better. The utility model has smooth running and small thrust resistance and solves the problem of the accumulation of water and air in the passage hole simultaneously, thus, normal pressure is kept in the passage hole, and the free running of the valve sheet is ensured.

Description

Direct-acting valve

Technical field

The utility model relates to a kind of defecate collection device that is applied to and makes the direct-acting valve that the external pipe valve opening opens and closes.

Background technique

Direct-acting valve is widely used in traffic tool defecate collection devices such as aircraft, locomotive, steamer and makes external pipe valve opening keying usefulness, by the electromagnetic valve compressed air gas source, make compressed air pressure reach 5～8bar, promote slippage in the port hole that valve block surrounds fully by cylinder between upper and lower cover plate, thereby make valve block that two final positions be arranged all the time, a position is that valve is in closed condition, and another position is that valve is in open mode.Chinese patent application number is that " guiding valve " disclosed technological scheme of 02812229.1 has following defective: 1. when operation realizes that valve opening opens and closes in the port hole of valve block at upper and lower cover plate, because no seal approach causes valve to have leakage phenomenon in off position; When 2. valve block moved in upper and lower cover plate port hole, guidance quality was poor, destroyed the upper and lower cover plate of periphery easily, and restricted by it; 3. poor lubricity makes the valve block operation inadequately along sliding, and certain promotion resistance is arranged; 4. in the port hole that upper and lower cover plate forms, valve block has water unavoidably in running or gas enters, and this water is gentle to be compressed accumulation back and forth by valve block, along with the increase of pressure has hindered the slippage of valve block, causes can't moving at last.

Summary of the invention

Technical problem to be solved in the utility model all provides a kind of valve to seal the direct-acting valve that reliable nothing is leaked, valve block slippage operation guidance quality is good, lubricity is good, nothing promotes resistance in off position in the defective that overcomes prior art be first goal of the invention; Provide a kind of simultaneously and can solve valve block running water, gas accumulation and can not to keep the direct-acting valve of the motor defect problem that normal pressure brings be second goal of the invention in port hole.

Technical problem of the present utility model solves by following technical proposal:

A kind of defecate collection device that is applied to is made the direct-acting valve that the external pipe valve opening opens and closes, it comprises upper cover plate, the lower cover plate that is connected, in the port hole that upper and lower cover plate surrounds fully, be provided with the valve block that slip realizes that the external pipe valve opening opens and closes, this valve block connects cylinder by link and is controlled by the cylinder operation and has two final positions, it is characterized in that described upper and lower cover plate is provided with in the groove near the valve opening place is distributed in the upper and lower selflubricating of valve block " O " RunddichtringO, at valve block slippage operation periphery seal element is set simultaneously.

In the described upper and lower cover plate any one is provided with exhaust port, and plastic pipe sleeve is connected on the exhaust port.

The attachment face of described upper and lower cover plate and adjacent component is provided with and carries seal element " O " RunddichtringO.

Compared with prior art, the utility model has been used selflubricating " O " RunddichtringO dexterously, two selflubricatings " O " type circle is embedded respectively at upper and lower cover plate near in the groove at external pipe valve opening place, make sliding motion realization valve opening keying in the port hole of valve block between two selflubricatings " O " type circle, good airproof performance not only, valve is sealed reliably in off position, also have good guidance quality and lubricity, make valve block operation in the track of regulation suitable sliding, the promotion resistance is little, do not destroy peripheral cover plate, not restricted by it; Also solve water, gas simultaneously and entered the interior accumulation problem of valve block operation port hole, made to keep normal pressure in the port hole, guaranteed the valve block operation freely; Upper and lower cover plate attachment face carries seal element, can guarantee and adjacent component between the installation sealing.

Description of drawings

Fig. 1 is the utility model structural representation (an opening of valves state).

Fig. 2 is the plan view of Fig. 1.

Fig. 3 is the A-A sectional view of Fig. 1.

Fig. 4 is the B-B sectional view (imaginary line is the valve closed condition) of Fig. 1.

Embodiment

Below with reference to accompanying drawing the utility model embodiment is described in detail again.

Shown in Fig. 1-4, direct-acting valve is that a kind of traffic tool defecate collection devices such as aircraft, locomotive, steamer that are applied to are made external pipe valve opening 6 keying usefulness, by control system electromagnetic valve of instruction control compressed air gas source, promotes the valve that valve block opens and closes valve opening.It comprises upper cover plate 2 and the lower cover plate 3 of periphery with socket head screw 15 and nut 14 fastening one, and requires happy safe 243 glue when the assembling socket head screw, and the fastening back of upper and lower cover plate forms the valve body of flat, the thickness at place, gateway is 23mm, volume is little, and it is little to take up room, and bore is big.On, lower cover plate preprocessing before being fastenedly connected supplies the port hole that surrounds fully of valve block 7 slippages and is embedded the groove of seal ring, realize that the valve block 7 that valve opening 6 opens and closes is connected cylinder 12 pistons by special screw 8 with nut 9, cylinder connects source of the gas by rapid pipe joint 10, promote valve block last by the electromagnetic valve cylinder, slippage realizes that valve opening opens and closes in the port hole of lower cover plate, need regulate the link position of special screw and cylinder during installation, make valve block have two final positions, a valve opening enable possition, a valve opening closed position, valve block reaches final position, the right when resetting as cylinder, this moment valve block hole and last, the lower cover plate valve opening is concentric, as the valve block hole of Fig. 1 and last, the lower cover plate valve opening overlaps, and valve opening is opened; When valve block arrived final position, the left side, the valve block hole of Fig. 4 was moved to imaginary line 16 positions, and valve opening is closed.For making valve block have good sealing, guiding, lubrication effect in slipping, upper and lower cover plate is provided with near the groove at valve opening place and is distributed in the upper and lower selflubricating of valve block " O " RunddichtringO 5, at valve block slippage operation periphery seal element is set simultaneously, one is located at the upper and lower cover plate seal ring 13 of joint place all around, another is located at " O " RunddichtringO 11 on the junction plane of upper and lower cover plate and cylinder, require the valve block push-and-pull freely after assembling is finished, promote air pressure and be not more than 0.3Mpa.

For preventing that valve block from gentle the suppressing extremely of water that slipping is entered, having exhaust port on upper cover plate, plastic tube 1 is enclosed within on the exhaust port, and discharge water thus, gas make to keep normal pressure in the port hole, guarantee the valve block operation freely.

The attachment face of the upper and lower cover plate of the utility model is provided with and carries seal element " O " RunddichtringO 4, can guarantee that valve body and adjacent component assembling back sealing is reliable.

Claims

1, a kind of defecate collection device that is applied to is made the direct-acting valve that the external pipe valve opening opens and closes, it comprises the upper cover plate (2) that is connected, lower cover plate (3), last, be provided with the valve block (7) that slip realizes that external pipe valve opening (6) opens and closes in the port hole that lower cover plate surrounds fully, this valve block connects cylinder (12) by link and is controlled by cylinder operation and has two final positions, it is characterized in that described on, lower cover plate is provided with in the groove near the valve opening place and is distributed on the valve block (7), under selflubricating " O " RunddichtringO (5), simultaneously seal element is set at valve block slippage operation periphery.

2, direct-acting valve according to claim 1 is characterized in that in the described upper and lower cover plate any one is provided with exhaust port, and plastic tube (1) is socketed on the exhaust port.

3, direct-acting valve according to claim 1 and 2, the attachment face that it is characterized in that described upper and lower cover plate and adjacent component is provided with and carries seal element " O " RunddichtringO (4).