CN203477336U

CN203477336U - Valve

Info

Publication number: CN203477336U
Application number: CN201320587439.XU
Authority: CN
Inventors: 干平; 曾培
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2014-03-12
Anticipated expiration: 2023-09-23

Abstract

The utility model provides a valve. The valve comprises a valve body, a valve element, a first through hole, a second through hole and a drive device. The valve body comprises a barrel-shaped body and a sealing cover, wherein the sealing cover is fixed to one end portion of the barrel-shaped body in a welding mode or an integrally formed mode or other modes. The valve element is arranged in the barrel-shaped body. The side wall of the valve element circumferentially makes contact with the inner wall of the barrel-shaped body, and the valve element can conduct piston motion in the barrel-shaped body. The first through hole and the second through hole are formed in the valve body, and communication between the first through hole and the second through hole can be disconnected by the valve element. The drive device is connected with the end portion, away from the sealing cover, of the valve element and drives the valve element to conduct piston motion in the barrel-shaped body. By the adoption of the design, a cavity with the large size is formed in the valve body, a medium inlet with the large caliber and a medium outlet with the large caliber can be formed, and therefore large medium flow is guaranteed.

Description

Valve

Technical field

The utility model relates to plumbing and equipment gas transmission field, is specifically related to a kind of valve technology.

Background technique

Valve is accessory very common in daily life and various device, is controlling passing through and blocking of medium.Existing valve is varied, such as: gate valve, throttle valve, ball valve, butterfly valve, membrane valve, plunger valve, stopcock etc.Than the most traditional valve, the switching of the electrical equipment control valve that a lot of valves of today have been equipped with.But, using the exhaust outlet field with certain pressure at picture compressor, gas holder, dryer etc., the valve of existing these electrical controls, can not be too much by channels designs due to the restriction of working principle, thereby can not make medium pass through swimmingly.

Model utility content

The purpose of this utility model is to provide a kind of valve, solves one or more in above-mentioned prior art problem.

According to an aspect of the present utility model, the valve providing, comprises valve body, comprises cylinder and by welding, the mode such as one-body molded, is individually fixed in the capping of its end, one end; Spool, is located in cylinder; The sidewall of spool circumferentially contacts with the inwall of cylinder, and can in cylinder, do piston movement; The first through hole and the second through hole, be opened on valve body, and can be cut off and be communicated with by spool; Drive unit, is connected with the end, one end of spool away from capping, drives spool to do piston movement in cylinder inside.This design, because its valve inner possesses the cavity of larger volume, can be offered medium import and media outlet that bore is larger, and then ensure larger rate-of flow.

In some embodiments, the first through hole and the second through hole are all opened in capping.This design is when opening, and medium is more easily by the first through hole and the second through hole.

In some embodiments, the first through hole and described the second through hole are all opened in cylinder.This design is convenient to pipeline along the end extension of valve, is convenient to valve installation in long and narrow space.

In some embodiments, one in the first through hole and the second through hole is opened in described cylinder, and another is opened in capping.Be convenient to the installation of valve in multiple environment.

In some embodiments, capping is provided with seal near a side of spool.Guarantee that spool can cut off the connection of the first through hole and the second through hole.

In some embodiments, cylinder inwall is provided with seal.Guarantee that spool can cut off the connection of the first through hole and the second through hole.

Accompanying drawing explanation

Fig. 1 is the generalized section of the first mode of execution opening state of the present utility model;

Fig. 2 is the generalized section of the second mode of execution opening state of the present utility model;

Fig. 3 is the generalized section of the third mode of execution opening state of the present utility model;

Fig. 4 is the generalized section of the first mode of execution closed condition of the present utility model.

Embodiment

Below in conjunction with Figure of description, the utility model is described in more detail.

As shown in Figure 1, the valve that the utility model provides, comprises valve body 10, comprises cylinder 11 and by welding, the mode such as one-body molded, is individually fixed in the capping 12 of its end, one end; Spool 60, is located in cylinder 11; The sidewall of spool 60 circumferentially contacts with the inwall of cylinder 11, and can in cylinder 11, do piston movement; The first through hole 111 and the second through hole 112, be opened on valve body 10, and can be cut off and be communicated with by spool 60;

Drive unit 40, is connected with the end, one end of spool 60 away from capping 12, drives spool 60 to do piston movement in cylinder 11 inside.

Wherein, drive unit 40 can have multiple design, can be cylinder, oil cylinder, and the retractable one end of cylinder or oil cylinder is connected with the end, one end away from capping 12 on spool 60, can be also to move by driven by motor spool 60.In addition, can also realize by connecting rod 30 connection of spool 60 and drive unit 40.When drive unit 40 is cylinder or oil cylinder, one end of connecting rod 30 is connected with spool 60 one end away from capping 12, and the other end is connected with the piston rod of cylinder or oil cylinder, and the flexible drivening rod 30 by piston rod moves, and then band movable valve plug 60 moves; When drive unit 40 is motor, on connecting rod 30, can establish the teeth groove that can be meshed with the gear of motor, when motor rotation, by gear transmission drivening rod 30, move, thereby band movable valve plug 60 moves.In a word, the setting method of drive unit 40 is done piston movement and is as the criterion can realize band movable valve plug 60 in cylinder 11.

When valve is during in opening state, as shown in Figure 1, 2, 3, spool 60 is not between the first through hole 111 and the second through hole 112, and the first through hole 111 and the second through hole 112 are in connected state, and medium can circulate between the first through hole 111 and the second through hole 112.

When valve is during in closed condition, as shown in Figure 4, spool 60 is between the first through hole 111 and the second through hole 112, and spool 60 has intercepted the connection of the first through hole 111 and the second through hole 112.

The valve that the utility model relates to is to rely on drive unit 40 to drive the movement of spools 60, thereby control the position of interconnecting part, and then realizes closing and opening of valve.Specifically, when needs throttle down, the drive unit 40 work application of forces, band movable valve plug 60 moves, until spool 60 is while cutting off the connection of the first through hole 111 and the second through hole 112 completely, valve is closed completely.When needs Open valve, the drive unit 40 work application of forces, drive spool 60 to move between the first through hole 111 and the second through hole 112 and remove, and during the connection completely of the first through hole 111 and the second through hole 112, valve is opened completely.

It should be noted that, the first through hole 111 and the second through hole 112 pass through for medium, can all be opened in cylinder 11; Also can all be opened in capping 12; Can also one be opened in cylinder 11, another is opened in capping 12.

In addition, for valve is when the closed condition, spool 60 can cut off the connection between the first through hole 111 and the second through hole 112 completely, the situation in cylinder 11 of all offering for the first through hole 111 and the second through hole 112, the edge of spool 60 should be tight as much as possible with contacting of cylinder 11 inwalls.Therefore, as shown in Figure 1, at cylinder 11 inwalls, lay seal 50.For the first through hole 111 and the second through hole 112, be all opened in the situation in capping 12, should as shown in Figure 2, seal 50 be laid on to capping 12 near a side of spool 60.For having one to be opened in cylinder 11 in the first through hole 111 and the second through hole 112, another is opened in the situation in capping 12, seal 50 can be laid on to cylinder 11 inwalls, also seal 50 can be laid on to capping 12 near a side of spool 60, can also all lay seal 50 in these two positions.

More than statement is only optimal way of the present utility model; it should be pointed out that to those skilled in the art, do not departing under the prerequisite of the utility model creation design; can also make some distortion and improvement, within these also should be considered as protection domain of the present utility model.

Claims

1. valve, is characterized in that, comprises

Valve body (10), comprises cylinder (11) and is located at the capping (12) of its end, one end;

Spool (60), is located in described cylinder (11); The sidewall of described spool (60) circumferentially contacts with the inwall of described cylinder (11), and can in described cylinder (11), do piston movement;

The first through hole (111) and the second through hole (112), be opened in described valve body (10) upper, and can be cut off and be communicated with by described spool (60);

Drive unit (40), is connected with the end, one end of described spool (60) away from described capping (12), drives described spool (60) to do piston movement in described cylinder (11) inside.

2. valve according to claim 1, is characterized in that, described the first through hole (111) and described the second through hole (112) are all opened in described capping (12).

3. valve according to claim 1, is characterized in that, described the first through hole (111) and described the second through hole (112) are all opened in described cylinder (11).

4. valve according to claim 1, is characterized in that, one in described the first through hole (111) and described the second through hole (112) is opened in described cylinder (11) above, and another is opened in described capping (12).

5. according to the valve described in claim 2 or 4, it is characterized in that, described capping (12) is provided with seal (50) near a side of described spool (60).

6. according to the valve described in claim 3 or 4, it is characterized in that, described cylinder (11) inwall is provided with seal (50).