CN209927512U

CN209927512U - Can prevent leaking sampling valve night

Info

Publication number: CN209927512U
Application number: CN201920134129.XU
Authority: CN
Inventors: 崔桂生; 付铁汉; 夏国珍
Original assignee: Tianjin Yarnfine Polytron Technologies Inc
Current assignee: Tianjin Yarnfine Polytron Technologies Inc
Priority date: 2019-01-26
Filing date: 2019-01-26
Publication date: 2020-01-10
Anticipated expiration: 2029-01-26

Abstract

The utility model provides a sampling valve capable of preventing night leakage, which comprises a valve seat and a valve body arranged at the lower end of the valve seat, wherein the outer part of the valve body is provided with a heat preservation layer, the inner wall of the valve body is provided with an anti-corrosion layer, the lower end of the valve body is arranged in a horn mouth shape, the center of the inner part of the valve body is vertically provided with a valve rod, the outer side walls of the upper part and the lower part of the valve rod are respectively provided with a circle of circular ring bulge matched with the inner cavity of the valve body, the outer peripheral surface of the circular ring, form inclosed sample chamber between valve rod and the valve body inner chamber, the top of valve rod stretches into the inside of disk seat and is connected with the clamp plate that the inside level of disk seat was equipped with, and the clamp plate can reciprocate in the disk seat, and the upper surface middle part of clamp plate is equipped with the depression bar, and the upper end of depression bar stretches out the disk seat and is connected with the handle, and the cover has first spring on the valve rod between the diapire in clamp plate and the disk seat, and the cover has the second spring on the depression bar between the roof in clamp plate and the disk seat.

Description

Can prevent leaking sampling valve night

Technical Field

The utility model relates to a sample valve technical field especially relates to a can prevent to leak sample valve night.

Background

In the chemical industry or the biological pharmacy industry, a sampling valve is often needed to sample liquid in a reaction so as to test the reaction progress; the existing sampling valve generally mainly comprises a valve body, a valve core and a screw rod, wherein the screw rod is required to be rotated to drive the valve core to move up and down to finish sampling during sampling, so that the operation is relatively complicated; and the phenomenon of liquid leakage is easy to occur after sampling, and the using effect is not good.

Disclosure of Invention

The utility model discloses just to above technical problem, provide a can prevent to leak the sample valve at night.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a sampling valve capable of preventing night leakage comprises a valve seat and a valve body arranged at the lower end of the valve seat, and is characterized in that a heat preservation layer is arranged outside the valve body, an anti-corrosion layer is arranged on the inner wall of the valve body, the lower end of the valve body is arranged in a horn mouth shape, a valve rod is vertically arranged in the center of the valve body, a circle of circular ring bulge matched with an inner cavity of the valve body is arranged on the outer side wall of the upper portion and the lower portion of the valve rod, a plurality of O-shaped sealing rings are arranged on the outer circumferential surface of the circular ring bulge, a closed sampling cavity is formed between the valve rod and the inner cavity of the valve body, the top end of the valve rod extends into the valve seat and is connected with a pressure plate horizontally arranged in the valve seat, the pressure plate can move up and down in the valve seat, a pressure rod is arranged in the middle of the upper surface of the pressure plate, the upper end of, the lower extreme of first spring and the interior diapire fixed connection of disk seat, the cover has the second spring on the depression bar between the roof in clamp plate and the disk seat, and the upper end of second spring is fixed with the interior roof of disk seat, and the lower extreme of second spring and the upper surface fixed connection of clamp plate.

The inner walls of the two sides of the valve seat are provided with sliding grooves, and the two sides of the pressing plate are correspondingly provided with sliding blocks capable of moving up and down in the sliding grooves.

The handle is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with a plurality of elastic rubber bulges.

Compared with the prior art, the beneficial effects of the utility model are that: when the utility model is used for sampling, the valve rod can be driven to move downwards only by pressing down the handle, so that the sampled liquid enters the sampling cavity from the horn mouth arranged at the lower end of the valve body, the handle is loosened, and the valve rod is restored under the elastic action of the first spring and the second spring, thus completing sampling; the liquid of being sampled is located inclosed sampling cavity, the effectual weeping that has prevented, the result of use is better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1. a valve seat; 2. a valve body; 3. a heat-insulating layer; 4. an anti-corrosion layer; 5. a valve stem; 6. the circular ring is convex; 7. an O-shaped sealing ring; 8. a sampling cavity; 9. pressing a plate; 10. a pressure lever; 11. a handle; 12. a first spring; 13. a second spring; 14. a chute; 15. a slide block.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in figure 1, the sampling valve capable of preventing night leakage comprises a valve seat 1 and a valve body 2 arranged at the lower end of the valve seat 1, wherein a heat preservation layer 3 is arranged outside the valve body 2, an anti-corrosion layer 4 is arranged on the inner wall of the valve body 2, the lower end of the valve body 2 is arranged in a horn mouth shape, a valve rod 5 is vertically arranged in the center inside the valve body 2, a circle of circular ring bulge 6 matched with the inner cavity of the valve body 2 is respectively arranged on the outer side walls of the upper part and the lower part of the valve rod 5, a plurality of O-shaped sealing rings 7 are arranged on the outer peripheral surface of the circular ring bulge 6, a closed sampling cavity 8 is formed between the two circular ring bulges 6, the valve rod 5 and the inner cavity of the valve body 2, the top end of the valve rod 5 extends into the valve seat 1 and is connected with a pressing plate 9 horizontally arranged inside the valve seat 1, the pressing plate 9 can move up, the valve rod 5 between the bottom wall of the pressure plate 9 and the valve seat 1 is sleeved with a first spring 12, the upper end of the first spring 12 is fixedly connected with the lower surface of the pressure plate 9, the lower end of the first spring 12 is fixedly connected with the bottom wall of the valve seat 1, a compression bar 10 between the top wall of the pressure plate 9 and the valve seat 1 is sleeved with a second spring 13, the upper end of the second spring 13 is fixed with the inner top wall of the valve seat 1, and the lower end of the second spring 13 is fixedly connected with the upper surface of the pressure plate 9.

The inner walls of two sides of the valve seat 1 are provided with sliding grooves 14, and two sides of the pressing plate 9 are correspondingly provided with sliding blocks 15 capable of moving up and down in the sliding grooves 14.

The handle 11 is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with a plurality of elastic rubber bulges.

When the utility model is used for sampling, the handle 11 is only needed to be pressed down to drive the valve rod 5 to move down, so that the sampled liquid enters the sampling cavity 8 from the bell mouth arranged at the lower end of the valve body 2, the handle 11 is loosened, and the valve rod 5 is restored under the elastic action of the first spring 12 and the second spring 13, thus completing sampling; the sampled liquid is positioned in the closed sampling cavity 8, so that liquid leakage is effectively prevented; the arranged heat preservation layer 3 effectively keeps the temperature of the sampled liquid, and the influence of overlarge temperature change on the test effect is prevented; the anti-corrosion layer 4 improves the anti-corrosion performance of the sampling valve, prolongs the service life of the sampling valve and has good use effect.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. The utility model provides a can prevent leaking sampling valve night, including disk seat (1) and valve body (2) of setting at disk seat (1) lower extreme, a serial communication port, the outside of valve body (2) is equipped with heat preservation (3), be equipped with anti-corrosion coating (4) on the inner wall of valve body (2), the lower extreme of valve body (2) sets up to the horn mouth form, the inside central authorities of valve body (2) are vertical to be equipped with valve rod (5), all be equipped with round and valve body (2) inner chamber matched with ring arch (6) on the lateral wall of valve rod (5) upper portion and lower part, the outer peripheral face of ring arch (6) is equipped with multichannel "O" type sealing washer (7), make two ring arch (6), form inclosed sample chamber (8) between valve rod (5) and the valve body (2) inner chamber, the top of valve rod (5) stretches into the inside of disk seat (1) and is connected with clamp plate (9) that, the clamp plate (9) can reciprocate in disk seat (1), the upper surface middle part of clamp plate (9) is equipped with depression bar (10), the upper end of depression bar (10) stretches out disk seat (1) and is connected with handle (11), cover has first spring (12) on valve rod (5) between clamp plate (9) and the disk seat (1) inner bottom wall, the upper end of first spring (12) and the lower fixed surface of clamp plate (9) are connected, the lower extreme of first spring (12) and the inner bottom wall fixed connection of disk seat (1), the cover has second spring (13) on depression bar (10) between clamp plate (9) and disk seat (1) inner top wall, the upper end of second spring (13) is fixed with the inner top wall of disk seat (1), the lower extreme of second spring (13) and the upper surface fixed connection of clamp plate (9).

2. The sampling valve capable of preventing night leakage according to claim 1, wherein sliding grooves (14) are formed on the inner walls of the two sides of the valve seat (1), and sliding blocks (15) capable of moving up and down in the sliding grooves (14) are correspondingly arranged on the two sides of the pressure plate (9).

3. A sampling valve capable of preventing night leakage according to claim 1, wherein the handle (11) is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with a plurality of elastic rubber bulges.