Bayonet type sanitary pinch valve

Abstract

The utility model discloses a bayonet type sanitary pinch valve, which comprises a valve seat, the valve seat comprises a seat body, a barrier strip and a mounting flange, the seat body is a cylinder, a cavity is arranged in the seat body, a hole with a round inner part and a narrow outer part is arranged on a single side of the side wall and is used for clamping a hose, a strip-shaped positioning slide way is radially arranged at the aligning center position of the side wall, and openings are arranged at two ends of the seat body. One end is connected with the mounting flange, two mounting holes are symmetrically formed in the other end close to the opening and used for fixing the barrier strip and the valve element, the valve element is slidably arranged in the cavity of the seat body, and when the valve element moves in the direction away from the mounting flange, the distance between the valve element and the seat body is shortened, and a pipeline is clamped and fixed. According to the pipe clamp valve, the air cylinder drives the valve element to slide in the cavity of the seat body, a pipeline is clamped and fixed through the chuck at one end of the valve element and the seat body, operation is easy, and fixation is firmer.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a bayonet-type sanitary-grade pinch valve. Background Art

[0002] Pinch valves are also called pinch valves, airbag valves, clamp valves, etc. The sleeve is the most important part of any pinch valve and the center of the pinch valve. It provides corrosion resistance, wear resistance and pressure bearing capacity. The sleeve is squeezed by pneumatic, electric, manual or hydraulic driving methods to achieve the function of switching / regulation.

[0003] In the field of biopharmaceuticals, hoses made of different materials such as silicone, thermoplastic or PVC are often used as channels for transmitting materials and liquids. The hose is inserted into the pinch valve, and the drive device of the pinch valve pushes the valve core to squeeze the hose to open or close the channel. The pinch valve does not contact the medium in the hose, which is hygienic and convenient. Commonly used are electromagnetic pinch valves. This type of pinch valve has a small clamping force and a short stroke, so it is often used for small-diameter hoses. Utility Model Content

[0004] The utility model aims to provide a bayonet-type sanitary pinch valve which is not limited by the diameter of the hose and solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a bayonet-type sanitary pinch valve, comprising

[0006] The valve seat includes a seat body, a baffle and a mounting flange. The seat body is a cylinder with a cavity inside. A side wall is provided with an inner circular and outer narrow opening on one side for inserting a hose. A long strip positioning slide is radially provided on the side wall aligned with the center position. Both ends of the seat body are set as openings, one end is connected to the mounting flange, and the other end is symmetrically provided with two mounting holes near the opening for fixing the baffle.

[0007] The valve core is slidably arranged in the cavity of the seat body. When the valve core moves away from the mounting flange, the distance between the valve core and the seat body is shortened, thereby clamping and fixing the pipeline.

[0008] Preferably, both sides of the valve core are bent inwardly to form a straight-line protruding clamp in the middle, and the cross section of the clamp is concave inwardly.

[0009] Preferably, in any of the above schemes, a positioning hole is provided on the valve core, a positioning pin is provided in the positioning hole, and the positioning pin extends into a positioning slide on the seat body and moves.

[0010] Preferably in any of the above solutions, the valve core is arranged on the push rod of the cylinder.

[0011] The technical effects and advantages of the utility model are as follows: the pipe clamp valve adopts an air cylinder to drive the valve core to slide in the cavity of the seat body, and the pipeline is clamped and fixed by the clamp at one end of the valve core and the seat body. The operation is simple and the fixation is more firm. More importantly, the cross-section of the valve core adopts an inwardly concave arc surface design, which avoids gaps at both ends when clamping a large-diameter hose. The arc surface design will keep the entire clamping surface in a closed state, which is not easy to leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a structural schematic diagram of the valve seat of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the mounting flange of the utility model;

[0015] Figure 4 This is a structural schematic diagram of the valve core of the utility model;

[0016] Figure 5 This is a structural schematic diagram of the valve core of the utility model from another perspective;

[0017] Figure 6 It is a structural schematic diagram of the push rod of the utility model.

[0018] In the figure: 1. valve seat; 11. seat body; 12. mounting flange; 13. opening; 2. valve core; 21. chuck; 22. connecting block; 23. positioning hole; 3. cylinder; 4. push rod; 41. mounting hole; 5. spring seat; 6. positioning pin; 7. stop bar; 8. piston; 9. positioning slide. DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0022] The utility model provides Figure 1-6 A pipe clamp valve is shown, comprising

[0023] The valve seat 1 includes a seat body 11, a baffle 7, and a mounting flange 12. The seat body 11 is a cylinder with a cavity inside. A side wall is provided with an inner circular and outer narrow opening on one side for inserting a hose. A long strip positioning slide 9 is radially provided on the side wall aligned with the center position. Both ends of the seat body 11 are set as openings, one end is connected to the mounting flange 12, and the other end is symmetrically provided with two mounting holes near the opening for fixing the baffle 7.

[0024] The valve core 2 is slidably arranged in the cavity of the seat body 11. When the valve core 2 moves away from the mounting flange 12, the distance between the valve core 2 and the seat body 11 is shortened, thereby clamping and fixing the pipeline.

[0025] Both sides of the valve core 2 are bent inwards to form a straight-line protruding clamp 21 in the middle, and the cross section of the clamp 21 is concave inwards.

[0026] The valve core 2 is provided with a positioning hole 23 , and a positioning pin 6 is provided in the positioning hole 23 . The positioning pin 6 extends into a positioning slideway on the seat body 11 to move.

[0027] The valve core 2 is arranged on a push rod 4 of a cylinder 3, and a spring seat 5 is arranged at one end.

[0028] A connecting block 22 is fixed to the other end of the valve core 2 , and the connecting block 22 is connected to the mounting hole 41 of the push rod 4 , so that the push rod 4 and the valve core 2 form a whole. A piston 8 is provided at the other end of the push rod 4 .

[0029] During use of the pipe clamp valve, the pipe is passed through the opening 13, the cylinder 3 is started, the cylinder 3 pushes the push rod 4 to move, and the valve core 2 is connected with the push rod 4, so that the valve core 2 will not rotate or deviate during its movement in the inner cavity of the seat body 11, guided by the positioning pin 6 in the positioning slideway. Finally, the clamp 21 of the valve core 2 abuts against the closed end of the seat body 11, clamping the pipe in the middle, thereby completing the pipe clamping and flow interception.

[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bayonet-type sanitary pinch valve, characterized in that: include A valve seat (1) comprises a seat body (11), a retaining bar (7), and a mounting flange (12); the seat body (11) is a cylinder, and the interior is set as a cavity; a side wall is provided with an inner circular and outer narrow opening (13) on one side for inserting a hose; a long strip positioning slideway (9) is radially provided on the side wall aligned with the center position; both ends of the seat body (11) are set as openings, one end is connected to the mounting flange (12), and the other end is symmetrically provided with two mounting holes near the opening (13) for fixing the retaining bar (7); The valve core (2) is arranged in the cavity of the seat body (11) and slides in the cavity of the seat body (11) along the positioning slideway (9). When the valve core (2) moves away from the mounting flange (12), the distance between the valve core (2) and the seat body (11) is shortened, thereby clamping and fixing the pipeline.

2. A bayonet-type sanitary pinch valve according to claim 1, characterized in that: Both sides of the valve core (2) are bent inwards, forming a straight-line protruding clamp (21) in the middle, and the cross section of the clamp (21) is concave inwards.

3. The bayonet-type sanitary pinch valve according to claim 1, characterized in that: The valve core (2) is provided with a positioning hole (23), a positioning pin (6) is provided in the positioning hole (23), and the positioning pin (6) extends into a positioning slideway on the seat body (11) to move.

4. The bayonet-type sanitary pinch valve according to claim 2, characterized in that: The valve core (2) is arranged on a push rod (4) of the cylinder (3).

Images