Sealing follow-up rotation preventing structure for double-layer plate mounting valve

Abstract

The utility model discloses a double-layer plate installation valve sealing anti-following-rotation structure which comprises a first wall plate and a second wall plate, a sealing cavity is formed between the first wall plate and the second wall plate, the double-layer plate installation valve sealing anti-following-rotation structure further comprises a valve installed on the first wall plate and the second wall plate, a special-shaped hole is formed in the first wall plate, and a round hole is formed in the second wall plate. The valve comprises a valve pipe, one end of the valve pipe is provided with a thread part, the end part of the thread part is polished into a special-shaped mounting hole shape matched with the special-shaped hole, and a step part is formed at the top end of the thread part; the pipe body of the valve pipe is matched with the circular hole, and the thread part of the valve pipe is matched with the special-shaped hole; and the fastening nut and the fastening gasket are matched with the thread part. The utility model has the beneficial effects that the special-shaped hole on the first wall plate is matched with the thread part of the valve pipe for limiting, so that the following rotation is effectively prevented; a first sealing washer and a second sealing washer are arranged on one side of the first wall plate and one side of the second wall plate respectively, and the sealing performance of the installation part is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a double-layer plate mounted valve sealing anti-rotation structure. Background Art

[0002] In the industry, although there are many solutions to the anti-rotation structural design, we have proposed a higher standard for Class III medical devices: a double-layer plate mounted valve sealing anti-rotation structure. In the design and actual application of medical equipment, problems that affect the sealing and rotation of the equipment often occur when installing valves. However, when the double-layer plate valve is installed and the sealing is guaranteed, the rotation problem is more difficult to solve, resulting in equipment failure or affecting the sealing of the equipment. Therefore, in order to solve this problem, we propose a double-layer plate mounted valve sealing anti-rotation structural design. Utility Model Content

[0003] The utility model aims to provide a double-layer plate mounted valve sealing anti-rotation structure.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A double-layer plate mounted valve sealing and anti-rotation structure comprises a first wall plate and a second wall plate, a sealing cavity is formed between the first wall plate and the second wall plate, and also comprises a valve mounted on the first wall plate and the second wall plate, characterized in that: a special-shaped hole is formed on the first wall plate, and a round hole is formed on the second wall plate; the valve comprises a valve tube, a threaded portion is arranged at one end of the valve tube, the end of the threaded portion is polished into a special-shaped mounting hole shape matching the special-shaped hole, and a step portion is formed at the top of the threaded portion; the tube body of the valve tube matches the round hole, and the threaded portion of the valve tube matches the special-shaped hole; and also comprises a fastening nut and a fastening washer matching the threaded portion.

[0006] Preferably, it also includes a first sealing rubber ring, a second sealing rubber ring, a special-shaped gasket and a fixed gasket. The special-shaped gasket is consistent with the shape of the special-shaped hole and abuts against the step portion. The first sealing rubber ring is arranged between the first wall panel and the special-shaped gasket; the fixed gasket is fixedly connected to the tube body of the valve tube, and the second sealing rubber ring is arranged between the fixed gasket and the second wall panel.

[0007] Preferably, an arc-shaped groove for installing the second sealing ring is formed on one side of the fixing gasket.

[0008] Preferably, the distance between the fixed gasket and the special-shaped gasket is the same as the distance between the first wall panel and the second wall panel.

[0009] Preferably, the special-shaped hole is square, rectangular or trapezoidal.

[0010] Preferably, a conical opening is provided at the outlet end of the tube body.

[0011] The beneficial effects of the utility model are as follows: the special-shaped hole on the first wall plate cooperates with the threaded part of the valve tube to limit the position, effectively preventing rotation; a first sealing gasket and a second sealing gasket are respectively arranged on one side of the first wall plate and the second wall plate to improve the sealing of the installation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a double-layer plate mounted valve sealing anti-rotation structure of the utility model;

[0013] Figure 2 It is a side structural diagram of a double-layer plate mounted valve sealing anti-rotation structure of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the first wall panel of the utility model;

[0015] Among them: a first wall plate 10, a second wall plate 12, a special-shaped hole 14, a valve tube 16, a threaded portion 18, a step portion 20, a fastening nut 22, a fastening washer 24, a first sealing rubber ring 26, a second sealing rubber ring 28, a special-shaped gasket 30, a fixing gasket 32, an arc groove 34, and a tapered mouth 36. DETAILED DESCRIPTION

[0016] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0017] like Figures 1 to 3 As shown, a double-layer plate mounted valve sealing and anti-rotation structure of the utility model includes a first wall plate 10 and a second wall plate 12, a sealing cavity is formed between the first wall plate 10 and the second wall plate 12, and also includes a valve installed on the first wall plate 10 and the second wall plate 12, a special-shaped hole 14 is opened on the first wall plate 10, and a round hole (not shown) is opened on the second wall plate 12; the valve includes a valve pipe 16, a threaded portion 18 is arranged at one end of the valve pipe 16, the end of the threaded portion 18 is polished into a special-shaped mounting hole shape matching with the special-shaped hole 14, and a step portion 20 is formed at the top of the threaded portion 18; the tube body of the valve pipe 16 matches with the round hole, and the threaded portion 18 of the valve pipe 16 matches with the special-shaped hole 14; it also includes a fastening nut 22 and a fastening washer 24, which match with the threaded portion 18.

[0018] It also includes a first sealing rubber ring 26, a second sealing rubber ring 28, a special-shaped gasket 30, and a fixed gasket 32. The special-shaped gasket 30 is consistent in shape with the special-shaped hole 14 and abuts against the step portion 20. The first sealing rubber ring 26 is arranged between the first wall panel 10 and the special-shaped gasket 30; the fixed gasket 32 ​​is fixedly connected to the tube body of the valve tube 16, and the second sealing rubber ring 28 is arranged between the fixed gasket 32 ​​and the second wall panel 12.

[0019] An arc-shaped groove 34 for mounting the second sealing ring is formed on one side of the fixing gasket 32 ​​.

[0020] The distance between the fixed gasket 32 ​​and the special-shaped gasket 30 is the same as the distance between the first wall plate 10 and the second wall plate 12 .

[0021] The special-shaped hole 14 is square, rectangular or trapezoidal, or other non-circular shapes, to prevent the valve tube 16 from rotating when the fastening nut 22 is rotated, resulting in poor sealing.

[0022] The outlet end of the tube body is provided with a conical opening 36 for easy connection of a hose.

[0023] During installation, place the second sealing rubber ring 28 into the arc groove 34 of the fixed gasket 32, and pass the threaded end of the valve pipe 16 through the circular hole of the second wall plate 12; then, put the special-shaped gasket 30 on the top of the threaded portion 18, abut against the step portion 20, and put on the first sealing rubber ring 26; continue to push the valve pipe 16 in, and the threaded end of the valve pipe 16 is exposed from the first wall plate 10. At this time, the first sealing rubber ring 26 and the second sealing rubber ring 28 are tightly abutted against the first partition plate and the second partition plate, tighten the fastening nut 22 and the fastening washer 24, and the installation is completed.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-layer plate mounted valve sealing anti-rotation structure, comprising a first wall plate and a second wall plate, wherein a sealed cavity is formed between the first wall plate and the second wall plate, and further comprising a valve mounted on the first wall plate and the second wall plate, characterized in that: The first wall plate is provided with a special-shaped hole, and the second wall plate is provided with a round hole; the valve comprises a valve tube, a threaded portion is arranged at one end of the valve tube, the end of the threaded portion is polished into a special-shaped mounting hole shape matching with the special-shaped hole, and a step portion is formed at the top of the threaded portion; the tube body of the valve tube matches with the round hole, and the threaded portion of the valve tube matches with the special-shaped hole; and the valve also comprises a fastening nut and a fastening washer matching with the threaded portion.

2. A double-layer plate mounted valve sealing anti-rotation structure according to claim 1, characterized in that: It also includes a first sealing rubber ring, a second sealing rubber ring, a special-shaped gasket, and a fixed gasket. The special-shaped gasket is consistent with the shape of the special-shaped hole and abuts against the step portion. The first sealing rubber ring is arranged between the first wall panel and the special-shaped gasket; the fixed gasket is fixedly connected to the tube body of the valve tube, and the second sealing rubber ring is arranged between the fixed gasket and the second wall panel.

3. A double-layer plate mounted valve sealing anti-rotation structure according to claim 2, characterized in that: An arc-shaped groove for installing the second sealing rubber ring is formed on one side of the fixing gasket.

4. The double-layer plate mounted valve sealing anti-rotation structure according to claim 2, characterized in that: The distance between the fixed gasket and the special-shaped gasket is the same as the distance between the first wall plate and the second wall plate.

5. The double-layer plate mounted valve sealing anti-rotation structure according to claim 1, characterized in that: The special-shaped hole is square, rectangular or trapezoidal.

6. The double-layer plate mounted valve sealing anti-rotation structure according to claim 1, characterized in that: The outlet end of the tube body is provided with a tapered opening.

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