CN210920130U

CN210920130U - L-shaped sanitary sterile back pressure valve

Info

Publication number: CN210920130U
Application number: CN201921210990.6U
Authority: CN
Inventors: 黄东升; 韩宪伟
Original assignee: Kunshan Long Zhaoyu Machinery Technology Co ltd
Current assignee: Kunshan Long Zhaoyu Machinery Technology Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-07-03
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses an L-shaped sanitary aseptic back pressure valve, which comprises an L-shaped valve body, a connecting valve body, a valve rod, a connecting sleeve and a cylinder, wherein both ends of a channel of the L-shaped valve body are respectively provided with a first flange and a second flange which are both provided with a first steam hole, and one end surface away from the channel is provided with a first steam groove, the L-shaped valve body is connected with the connecting valve body, the connecting sleeve is arranged on the connecting valve body, the other end of the connecting sleeve is fixed with the cylinder, the valve rod is arranged in the L-shaped valve body and the connecting valve body in a sliding way, the other end of the valve rod is connected with the cylinder, the connecting valve body is provided with a second steam hole, a second steam groove is arranged below the second steam hole, the top end of the connecting valve body is provided with a hard sealing ring, the hard sealing ring is embedded into the bottom of the first valve body, and both side walls of the valve, the steam protection length is long, and the L-shaped channel can be completely opened by the integrated valve rod, so that the sterile environment can be formed.

Description

L-shaped sanitary sterile back pressure valve

Technical Field

The utility model relates to a intercommunication valve technical field especially relates to a sterile back pressure valve of L type sanitary-grade.

Background

With the progress and development of society, food safety is receiving more and more attention from people, so aseptic production in food industry and pharmaceutical industry is receiving more and more attention from manufacturers, wherein a sanitary aseptic valve is used as an important component part in fluid transmission equipment, and the application in the industries is wider.

At present, the sterile valve has sanitary dead corners due to design defects or imperfect design. For example, the valve body has short steam protection length, so that sterility is easy to cause, the hidden danger of poor sterility protection exists, and pollution is easy to cause; in addition, the stroke of the valve rod is limited, an outlet is blocked, a passage cannot be completely formed in the valve body, the cleaning is difficult, a sanitary dead angle and hidden danger are left, and meanwhile, the pipeline pressure is suddenly increased to influence the production safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sterile back pressure valve of L type sanitary-grade realizes the sealed effect between valve body and the external world and the valve body through steam protection, and steam protection length is longer, does benefit to and forms sterile environment.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an L-shaped sanitary aseptic back pressure valve comprises an L-shaped valve body, a connecting valve body, a valve rod, a connecting sleeve and an air cylinder, wherein a first flange and a second flange are respectively arranged at two ends of an L-shaped channel of the L-shaped valve body, first steam holes are respectively formed in the first flange and the second flange, a first steam groove communicated with the first steam holes is formed in one end face, away from the L-shaped channel, of the first flange and the second flange, the L-shaped valve body is connected with the connecting valve body, the connecting sleeve is arranged on the connecting valve body, the air cylinder is fixed at the other end of the connecting sleeve, the valve rod is arranged in the L-shaped valve body and the connecting valve body in a sliding mode, the other end of the valve rod is connected with the air cylinder, a second steam hole is formed in the connecting valve body, a second steam groove is formed in the inner wall, located below the second steam hole, a hard sealing ring, the side wall of the valve rod, which is abutted against one side wall of the valve rod, is provided with a third steam groove, and the side wall of the valve rod, which is far away from one side wall of the valve rod, is provided with a fourth steam groove.

As a further optimization, the valve rod is of an integrated structure.

As a further optimization, the lower movement limit of the valve rod is that the upper end face of the valve rod is higher than that of the hard sealing ring, and the L-shaped channel can be completely opened.

As a further optimization, the number of the first steam holes and the number of the second steam holes are both two.

As a further optimization, a sealing gasket is arranged between the L-shaped valve body and the connecting valve body.

As a further optimization, the sealing washer is a teflon washer.

As further optimization, the L-shaped valve body is fixedly connected with the connecting valve body, the connecting valve body is fixedly connected with the connecting sleeve, and the connecting sleeve is fixedly connected with the air cylinder through the inner hexagon screws.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the flange is hermetically sealed with the outside through the first steam hole and the first steam groove, the L-shaped valve body is hermetically sealed with the connecting valve body through the second steam hole, the second steam groove, the third steam groove and the fourth steam groove, the steam protection length is long, and the sterile environment is favorably formed;

2. the valve rod is of an integrated structure, and the valve rod can completely return to open the L-shaped channel, so that the valve rod is beneficial to washing, has no sanitary dead angle, and is beneficial to forming a sterile environment.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a sectional view a-a in fig. 1.

Fig. 4 is an enlarged view at B in fig. 3.

In the figure, 1, a first valve body; 2. connecting the valve body; 3. a valve stem; 4. connecting sleeves; 5. a cylinder; 7. a sealing gasket; 11. a first flange; 12. a second flange; 21. a hard seal ring; 61. a first steam vent; 62. a first steam tank; 63. a second steam vent; 64. a second steam tank; 65. a third steam tank; 66. and a fourth steam tank.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, an L-shaped sanitary aseptic back pressure valve comprises an L-shaped valve body 1, a connecting valve body 2, a valve rod 3, a connecting sleeve 4 and a cylinder 5, wherein a first flange 11 and a second flange 12 are respectively arranged at two ends of an L-shaped channel of the L-shaped valve body 1, a first steam hole 61 is respectively arranged on each of the first flange 11 and the second flange 12, a first steam groove 62 communicated with the first steam hole 61 is arranged on one end surface of each of the first flange and the second flange away from the L-shaped channel, the L-shaped valve body 1 is connected with the connecting valve body 2, the connecting sleeve 4 is arranged on the connecting valve body 2, the cylinder 5 is fixed at the other end of the connecting sleeve 4, the valve rod 3 is slidably arranged in the L-shaped valve body 1 and the connecting valve body, the other end of the valve rod is connected with the cylinder 5, a second steam hole 63 is arranged on the connecting valve body 2, a second steam groove 64 is arranged on the inner, the hard sealing ring 21 is embedded in the bottom of the first valve body 1, a third steam groove 6465 is arranged on the side wall of the first valve body abutting against one side wall of the valve rod 3, and a fourth steam groove 66 is arranged on the side wall of the first valve body far away from one side wall of the valve rod 3.

The L-shaped valve body has two connecting flanges in the vertical direction: the back pressure valve is fixed and forms L-shaped communication after the flanges at the two positions are connected with an external flange, first steam holes are formed in the side portions of the first flange and the second flange, an annular first steam groove is formed in one surface, butted with the external flange, of the first flange and the second flange, steam is introduced into the first steam groove through the first steam holes, and therefore the L-shaped valve body can form air sealing with the outside; the connecting valve body is provided with a second steam hole, a fourth steam groove is arranged between the upper part of the connecting valve body and the L-shaped valve body, a third steam groove is arranged between the connecting valve body and the valve rod, a second steam groove is arranged between the lower part of the connecting valve body and the connecting sleeve, steam is introduced through the second steam hole, air sealing can be formed in a cavity formed between the second steam groove and the third steam groove and between the L-shaped valve body and the outside, the total three air sealing can ensure that the steam sealing can be protected in place, the steam protection length is longer, and a sterile environment can be formed.

The valve rod 3 is of an integrated structure, bacteria are prevented from accumulating in gaps among the multi-section connecting structures, the lower movement limit of the valve rod 3 is that the upper end face of the valve rod is higher than the upper end face of the hard sealing ring 21, the L-shaped channel can be completely opened by the valve rod, a communicating port cannot be blocked, all-dimensional flushing can be carried out on the interior of the valve body, and sanitary dead angles are not reserved.

The number of the first steam holes 61 and the second steam holes 63 is two.

A sealing washer 7 is arranged between the L-shaped valve body 1 and the connecting valve body 2, and the sealing washer 7 can be a PTFE washer.

The L-shaped valve body 1 and the connecting valve body 2, the connecting valve body 2 and the connecting sleeve 4, and the connecting sleeve 4 and the cylinder 5 are fixedly connected by adopting inner hexagon screws.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The L-shaped sanitary aseptic back pressure valve is characterized by comprising an L-shaped valve body (1), a connecting valve body (2), a valve rod (3), a connecting sleeve (4) and a cylinder (5), wherein a first flange (11) and a second flange (12) are respectively arranged at two ends of an L-shaped channel of the L-shaped valve body (1), first steam holes (61) are respectively arranged on the first flange (11) and the second flange (12), a first steam groove (62) communicated with the first steam holes (61) is arranged at one end face, far away from the L-shaped channel, of the first flange and the second flange, the L-shaped valve body (1) is connected with the connecting valve body (2), the connecting sleeve (4) is arranged on the connecting valve body (2), the cylinder (5) is fixed at the other end of the connecting sleeve (4), the valve rod (3) is arranged in the L-shaped valve body (1) and the connecting valve body (2) in a sliding manner, and the other end of the valve rod is connected with, be equipped with second steam hole (63) on connecting valve body (2), it is equipped with second steam groove (64) on the inner wall that is located second steam hole (63) below, the top of connecting valve body (2) is equipped with stereoplasm sealing washer (21), the bottom of first valve body (1) is embedded in stereoplasm sealing washer (21), and its butt is equipped with third steam groove (65) on the lateral wall of valve rod (3) a lateral wall, and it is equipped with fourth steam groove (66) on keeping away from the lateral wall of valve rod (3) a lateral wall.

2. L-shaped sanitary aseptic back-pressure valve according to claim 1, characterized in that said valve stem (3) is of a one-piece construction.

3. L-shaped sanitary aseptic back-pressure valve according to claim 1, characterized in that the lower limit of the movement of the valve stem (3) is that its upper end face is higher than the upper end face of the hard seal (21) and the L-shaped channel can be fully opened.

4. L-shaped sanitary aseptic back-pressure valve according to claim 1, characterized in that said first steam holes (61) and second steam holes (63) are both two in number.

5. L-shaped sanitary aseptic back-pressure valve according to claim 1, characterized in that a sealing gasket (7) is provided between the L-shaped valve body (1) and the connection valve body (2).

6. L-shaped sanitary aseptic back-pressure valve according to claim 5, characterized in that said sealing gasket (7) is a teflon gasket.

7. The L-shaped sanitary aseptic back pressure valve according to claim 1, characterized in that the L-shaped valve body (1) and the connecting valve body (2), the connecting valve body (2) and the connecting sleeve (4), and the connecting sleeve (4) and the cylinder (5) are fixedly connected by hexagon socket head cap screws.