Double-clip type silencing check valve

Abstract

According to the technical scheme, the wafer type noise elimination check valve is characterized by comprising a valve body, a valve clack elastically connected to an inner cavity of the valve body and a valve rod penetrating through the valve clack, and a plurality of clamping grooves distributed around the valve rod in a circumferential mode are formed in the outer wall of the valve body. The two ends of each clamping groove extend towards the plane where the two end faces of the valve body are located. The problems that in the prior art, clamping from the outside is difficult, and carrying and transporting are difficult are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, and more specifically to a clamp-type silencer check valve. Background Art

[0002] A silencer check valve refers to a valve that automatically opens and closes the valve disc by the flow of the medium, and its main function is to prevent the medium from flowing back. There are many types of silencer check valves, the most common ones are straight silencer check valves, side silencer check valves, pipeline silencer check valves, and wafer silencer check valves. Among them, the outer wall of the valve body of the wafer silencer check valve is an arc-shaped valve body that bulges outward and has a smooth surface. At the same time, the contour dimensions of the two end faces of the valve body are smaller than the contour dimensions of the cross-section of the outer wall of the valve body. This has defects. First, in terms of processing and assembly, the lathe or the existing mold cannot clamp the outer wall of the valve body and can only be clamped from the inner wall of the valve body cavity or the port. This will affect the subsequent installation of components such as the valve stem, increase the difficulty of assembly operations, and reduce assembly efficiency; second, in terms of transportation, the outer wall of the valve body is smooth and it is easy for the transporter to slip, causing damage to the valve body and at the same time, the transporter will have difficulty in handling. The transport personnel can only apply force to the two ends of the valve body, and there are few points of force; thirdly, in terms of storage, the existing clamp-type silencer check valve can only place one end face on a plane, which occupies a large ground area; fourthly, in terms of transportation, multiple valve bodies are stacked together and vertical poles fixedly connected to the bottom of the car are added around the valve bodies. The existing technology limits the valve body by multiple vertical poles to prevent the valve body at the top from falling due to inertia, but the structural stability of the end of the vertical pole away from the bottom of the car is poor, and the outer wall of the valve body is smooth and curved. The outer wall of the valve body may slide relative to the two adjacent vertical poles and stretch the two vertical poles to cause the valve body to fall. If a large number of vertical poles are added, it will only increase transportation costs and reduce the efficiency of loading and unloading. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a wafer-type silencer check valve that is easy to clamp and hold.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp-type silent check valve, comprising a valve body, a valve disc elastically connected to the inner cavity of the valve body and a valve stem penetrating the valve disc, wherein a plurality of clamping grooves distributed circumferentially around the valve stem are arranged on the outer wall of the valve body, and the plurality of clamping grooves are through grooves and the two ends extend respectively to the planes where the two end faces of the valve body are located.

[0005] As a further improvement of the utility model, the plurality of clamping grooves include an arc-shaped groove bottom and two groove walls respectively connected to two sides of the groove bottom, and the distance between the two groove walls gradually increases in a direction away from the valve stem.

[0006] As a further improvement of the utility model, the connection between the groove wall and the outer wall of the valve body is rounded.

[0007] As a further improvement of the present invention, a plurality of sealing grooves coaxial with the valve stem and having different diameters are arranged on both end surfaces of the valve body.

[0008] The beneficial effects of the utility model are as follows: a plurality of clamping grooves distributed in a circle around the valve stem are processed on the outer wall of the valve body. In terms of processing and assembly, the clamping claws of the mold or the lathe can be inserted into the clamping grooves to position the valve body, which is convenient for assembling the parts inside the valve body and indirectly improves the assembly efficiency; in terms of transportation, since the outer wall of the valve body is uneven, the transporters can grasp the outer wall of the valve body for transportation, and at the same time, the transporters can carry out batch transportation by inserting two rods into the two clamping grooves respectively, which increases the points of force and improves the transportation efficiency; in terms of storage, the valve body axis can be placed parallel to the ground, and the outer wall of the valve body can be erected on the ground without rolling, occupying a large area The utility model is small, and multiple valve bodies can be stacked together. Two adjacent valve bodies can support the same valve body, which effectively utilizes the storage space. The stability of the valve body can be achieved by partially inserting the valve body into the clamping groove of the adjacent valve body. In terms of transportation, a small number of vertical poles can be installed in the carriage and accommodated in the corresponding clamping grooves on the outer wall of the valve body, which can prevent the valve body from rotating and effectively prevent the valve body from sliding relative to the vertical pole and propping up the vertical pole, thereby ensuring the stability of the valve body during transportation. The design of the clamping groove can also increase the complexity of the outer wall of the valve body, thereby improving the structural strength. At the same time, the clamping groove increases the contact area between the outer wall of the valve body and the air, thereby improving the surface heat dissipation capacity of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is the main sectional view of the utility model;

[0010] Figure 2 It is a left view of the utility model.

[0011] Figure numerals: 1, valve body; 2, valve disc; 3, valve stem; 4, clamping groove; 41, groove bottom; 42, groove wall; 5, sealing groove. DETAILED DESCRIPTION

[0012] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are indicated by the same reference numerals.

[0013] Reference Figure 1 and Figure 2 As shown, a wafer-type silencer check valve of this embodiment comprises a valve body 1, a valve flap 2 elastically connected to the inner cavity of the valve body 1, and a valve stem 3 penetrating the valve flap 2;

[0014] Based on the above-mentioned prior art, a plurality of clamping grooves 4 are arranged on the outer wall of the valve body 1 and are evenly distributed around the valve stem 3. The plurality of clamping grooves 4 are all through grooves and both ends extend to the planes where the two end faces of the valve body 1 are located. The groove bottom contours of the plurality of clamping grooves 4 on the plane where the axis of the valve stem 2 is located can be a straight line parallel to the axis of the valve stem 2 or can be an arc convex to the outside of the valve body 1. The manufacturer can process according to actual needs;

[0015] During the processing and assembly process, the clamping claws of the mold or the lathe can be inserted into the clamping groove 4 to position the valve body 1, which is convenient for the assembly of parts inside the valve body 1 and indirectly improves the assembly efficiency; during the transportation process, because the outer wall of the valve body 1 is uneven, the transporter can grasp the outer wall of the valve body 1 for transportation, and at the same time, the transporter can insert two rods into the two clamping grooves 4 respectively for batch lifting, which increases the fulcrum points and improves the transportation efficiency; during the storage process, the valve body 1 axis can be placed parallel to the ground, and the outer wall of the valve body 1 can be erected on the ground without rolling, which occupies a small area, and at the same time, multiple valve bodies 1 can be stacked together, and two adjacent valve bodies 1 can be stacked together. The valve body 1 can support the same valve body 1, effectively utilizing the storage space, and can also achieve the stability of the placement of the valve body 1 by partially inserting the valve body 1 into the clamping groove 4 of the adjacent valve body 1; during transportation, a small number of vertical poles can be selected and installed in the carriage and accommodated in the corresponding clamping grooves 4 on the outer wall of the valve body 1, which can not only prevent the valve body 1 from rotating but also effectively prevent the valve body 1 from sliding relative to the vertical pole and stretching the vertical pole, thereby ensuring the stability of the valve body 1 during transportation; the design of the clamping groove 4 can also increase the complexity of the outer wall of the valve body 1, thereby improving the structural strength. At the same time, the clamping groove 4 increases the contact area between the outer wall of the valve body 1 and the air, thereby improving the surface heat dissipation capacity of the valve body 1.

[0016] As a specific implementation method of the improvement, refer to Figure 2 As shown, the plurality of clamping grooves 4 include an arc-shaped groove bottom 41 in the plane where the diameter of the valve stem 3 is located and two groove walls 42 respectively connected to the two sides of the groove bottom, and the distance between the two groove walls 42 gradually increases in the direction away from the valve stem 3. The arc-shaped design of the groove bottom 41 increases the contact area with the vertical rod or the clamping claw, thereby improving the connection stability during clamping or positioning; the change in the distance between the two groove walls 42 makes it easy for vertical rods or clamping claws of different specifications to be radially installed into the clamping groove 4 along the valve body 1, and the vertical rods or clamping claws can be clamped by the two groove walls 42, thereby improving the connection stability.

[0017] As a specific implementation method of the improvement, refer to Figure 2 As shown, the connection between the groove wall 42 and the outer wall of the valve body 1 is rounded. Compared with the design in which the connection between the groove wall 42 and the outer wall of the valve body 1 is an edge, such a design can improve the interaction comfort of people and avoid bumps.

[0018] As a specific implementation method of the improvement, refer to Figure 1 andFigure 2 As shown, multiple sealing grooves 5 with different diameters and coaxial with the valve stem 3 are provided on both end faces of the valve body 1. When the valve body 1 is assembled with pipelines, etc., sealing rings can be respectively placed in the multiple sealing grooves 5 on the end face of the valve body 1, so as to form a multi-sealing structure. Such a design can provide preliminary positioning for the sealing rings compared with the design of only adding a sealing layer between the end face of the valve body 1 and the end face of the pipeline, avoiding the phenomenon that the sealing layer slides down or falls off before the valve body 1 and the pipeline are tightly attached, and indirectly improving the connection efficiency between the valve body 1 and the pipeline.

[0019] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A wafer-type silencer check valve, comprising a valve body (1), a valve flap (2) elastically connected to an inner cavity of the valve body (1), and a valve stem (3) penetrating the valve flap (2), characterized in that: The outer wall of the valve body (1) is provided with a plurality of clamping grooves (4) distributed in a circumferential manner around the valve stem (3); the plurality of clamping grooves (4) are all through grooves and the two ends of the clamping grooves extend respectively towards the planes where the two end surfaces of the valve body (1) are located.

2. The wafer-type silencer check valve according to claim 1, characterized in that: The plurality of clamping grooves (4) comprise an arc-shaped groove bottom (41) and two groove walls (42) respectively connected to two sides of the groove bottom, and the distance between the two groove walls (42) gradually increases in a direction away from the valve stem (3).

3. The wafer-type silencer check valve according to claim 2, characterized in that: The connection between the groove wall (42) and the outer wall of the valve body (1) is rounded.

4. A wafer-type silencer check valve according to claim 1, 2 or 3, characterized in that: A plurality of sealing grooves (5) coaxial with the valve stem (3) and having different diameters are provided on both end surfaces of the valve body (1).

Images