CN203836277U

CN203836277U - Piston-type valve

Info

Publication number: CN203836277U
Application number: CN201420087747.0U
Authority: CN
Inventors: 王熙; 李红荣; 杨锋
Original assignee: Shen Lichang Electronics Co Ltd Of Shenzhen
Current assignee: Shen Lichang Electronics Co Ltd Of Shenzhen
Priority date: 2014-02-27
Filing date: 2014-02-27
Publication date: 2014-09-17
Anticipated expiration: 2024-02-27

Abstract

The utility model discloses a piston-type valve. According to the piston-type valve, the operation principle structure of the piston-type valve is completely different from that of an existing butterfly valve and the wind pressure and the wind discharging evenness can be accurately adjusted. The piston-type valve is characterized by comprising a cylinder body, a piston, a transmission device and a power device, wherein the power device makes the piston conduct piston movement in the cylinder body through the transmission device and move to different positions; the air inlet end of the cylinder body is provided with at least one triangular adjusting air outlet and opening, closing and the size of the triangular adjusting air outlet are achieved through the different positions of the piston. According to the piston-type valve, wind power and wind pressure can be accurately adjusted, the requirement for high-accuracy air discharging in a special industry is satisfied, and the product or technological quality is improved.

Description

Piston valve

Technical field

The utility model relates to a kind of valve, relate in particular to a kind of can fine adjustment wind-force blast and can make the piston valve of the even unconfined flow of air-out.

Background technique

At present wait the restriction of fluid control field butterfly valve due to its structure in air-supply, mainly there are the following problems: 1, because stopping with the reason such as deflection angle of valve page can be caused air intake wind-force inequality and disorderly in air channel and air-out; 2, in the time regulating wind-force and blast, cannot accomplish fine adjustment directly have influence on processing industry in quality, especially processing industry and the product manufacturing industry etc. of finished product or technique on wind-force blast and carry the wind uniformity to have the impact of industry product control of high request larger.

Model utility content

For solving above-mentioned the deficiencies in the prior art, the utility model aims to provide a kind of working principle structure and is different from existing butterfly valve completely, can fine adjustment wind-force blast and the piston valve of the air-out uniformity.

The concrete scheme that the utility model is realized above-mentioned purpose is: a kind of piston valve, comprise cylinder body, piston, transmission device and power plant, and wherein power plant make piston in cylinder body, can do piston motion for line by transmission device and proceed to different positions; The triangle that wherein said cylinder body intake grill end offers at least one adjusts air port, and is realized this trigonometric form and adjusted folding and the size in air port by the difference of piston advanced positions.

Further: described transmission device is transmission screw and the screw mandrel that connects piston, and its fitting seat by cylinder base is arranged in cylinder body, described screw mandrel bottom is engaged with adjustable lever and is realized interlock by bearing and umbrella tooth.

Further: described power plant are connected with adjustable lever, can be that preferred actuating motor or stepper motor can be also hand knob devices.

According to the utility model described in embodiment further: described triangle adjusts air port and is preferably four onesize and symmetrical triangles around being arranged at cylinder body intake grill end and adjusts air port, utilize formula: single triangle area is S=HL/2, the gross area is S0=4S, and described piston can be realized the fine adjustment of air-out in 0 to 4S scope.

Further: described triangle adjust air port be top outwardly, bottom setting inwardly.

Usefulness of the present utility model has, and 1, utilize the feature of triangle graded and the cooperation of piston can accomplish easily that the fine adjustment of wind-force, blast meets the demand of special industry to highi degree of accuracy air-out with this, improve product or technological quality.

2, by regulate exhaust outlet symmetrical ring around arrange and can make very uniform balance of air-out.

3, effective transmission and power plant, can realize automation control and precision control.

By reference to the accompanying drawings feature of the present utility model and advantage are described further by the following examples:

Brief description of the drawings

Structural representation outside Fig. 1, the utility model embodiment;

Fig. 2, the utility model embodiment's cross-sectional view;

In figure: 1, cylinder body; 2, piston; 3, triangle adjusts air port; 21, transmission screw; 22, drive lead screw; 4, fitting seat; 41, bearing support; 42, bearing; 411, umbrella tooth; 5, lower end bottom; 51, adjustable lever.

Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.

Embodiment

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.

Referring to Fig. 1 and 2, figure is the utility model one preferred embodiment, as shown in the figure, the utility model, a kind of piston valve, is mainly made up of transmission device and the power plant of cylinder body 1, piston 2 and connection piston 2.

In the present embodiment, transmission device comprises the transmission screw 21 and the screw mandrel 22 that connect described piston 2, its fitting seat 4 by cylinder base is arranged in cylinder body 2, and described screw mandrel 22 bottoms are engaged with the adjustable lever 51 in lower end bottom 5 and realized interlock by the bearing 42 in bearing support 41 and umbrella tooth 411.

Power plant of the present utility model make piston 2 in cylinder body 1, do piston movement by transmission device and march to different positions; Due to the preferred symmetrical ring of described cylinder body intake grill end around four trigonometric forms that offer adjust air port 3, utilize formula known: single triangle area is S=HL/2, the gross area is S0=4S, therefore regulates this trigonometric form adjust folding and the size in air port and utilize leg-of-mutton graded can in 0 to 4S scope, accomplish the fine adjustment of air-out by the difference of piston advanced positions.

The preferred actuating motor of power plant of the present utility model, can certainly so not only can accomplish accurate control with stepper motor, can also realize automation control, even can also realize manual tune control by hand knob device.

And after the utility model is arranged in air channel, because triangle adjusts air port 3, be distributed symmetrically unanimously, make air-out meeting very evenly flat horizontal.

The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. a piston valve, is characterized in that: comprise cylinder body, piston, transmission device and power plant, wherein power plant make piston in cylinder body, can do piston motion for line by transmission device and proceed to different positions; The triangle that wherein said cylinder body intake grill end offers at least one adjusts air port, and is realized this trigonometric form and adjusted folding and the size in air port by the difference of piston advanced positions.

2. piston valve according to claim 1, it is characterized in that: described transmission device comprises the transmission screw and the screw mandrel that connect piston, its fitting seat by cylinder base is arranged in cylinder body, and described screw mandrel bottom is engaged with adjustable lever and realized interlock by bearing and umbrella tooth.

3. piston valve according to claim 2, is characterized in that: described power plant are connected with adjustable lever, and it can be that actuating motor or stepper motor can be also hand knob devices.

4. piston valve according to claim 1, it is characterized in that: described triangle adjusts air port and is preferably four onesize and symmetrical triangles around being arranged at cylinder body intake grill end and adjusts air port, utilize formula: single triangle area is S=HL/2, the gross area is S0=4S, and described piston can be realized the fine adjustment of air-out in 0 to 4S scope.

5. piston valve according to claim 4, is characterized in that: described triangle adjust air port be top outwardly, bottom arranges inwardly.