Swing check valve with waterproof hammer effect

Abstract

The utility model discloses a swing check valve with a water hammer prevention effect, which comprises a water hammer prevention structure, one end of the water hammer prevention structure is provided with an elastic opening and closing structure, the water hammer prevention structure comprises a swing check valve body serving as a body, one end of the swing check valve body is fixedly provided with a first flange connecting pipe, and the other end of the swing check valve body is provided with a second flange connecting pipe. Meanwhile, a mounting groove is formed in the first flange connecting pipe, a sliding rod which is connected with a spring and a sliding block in a penetrating mode is fixedly installed in the mounting groove, a through hole connecting disc is fixedly installed between the sliding blocks, and a cone with a through hole is fixedly installed on one side of the through hole connecting disc; the elastic opening and closing structure comprises a second flange connecting pipe fixedly installed at the other end of the swing check valve body, a through hole conveying disc is fixedly installed in the second flange connecting pipe through another sliding block, and meanwhile a fixing groove is formed in one side of the through hole conveying disc. And through arrangement of the connecting spring, penetrating and fixed connection are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of swing check valve, concretely is a swing check valve with water hammer effect. BACKGROUND

[0002] The swing check valve is also called one-way valve or check valve, and its function is to prevent the medium in the pipeline from flowing backward, and it is mainly used in the pipeline with one-way medium flow. In actual use, the swing check valve requires fast closing, and the impact force of the sealing surface of the valve disc on the valve body is very large at the moment when the valve disc is closed, which causes the sealing surface to be worn too fast. Meanwhile, the medium flows backward, and with the closing of the valve disc, the medium flow rate decreases rapidly from the maximum to zero, and the pressure increases rapidly, which generates water hammer that may damage the pipeline and valve. The current swing check valve with water hammer effect adopts an external bypass structure. This structure can prevent the generation of water hammer, but it increases the external leakage points of the valve, increases the weight of the valve, and increases the cost. Meanwhile, the size and shape are relatively large, and the installation space is limited. SUMMARY

[0003] The utility model discloses to solve the problem that the current swing check valve with water hammer effect adopts an external bypass structure, which can prevent the generation of water hammer, but it increases the external leakage points of the valve, increases the weight of the valve, and increases the cost. Meanwhile, the size and shape are relatively large, and the installation space is limited.

[0004] To achieve the above object, the utility model provides the following technical scheme: a swing check valve with water hammer effect, comprising a water hammer prevention structure, wherein one end of the water hammer prevention structure is provided with an elastic opening and closing structure;

[0005] The water hammer prevention structure comprises a swing check valve body as a whole, and a first flange connecting pipe is fixedly installed at one end of the swing check valve body. An installation groove is formed in the first flange connecting pipe.

[0006] A sliding rod penetratingly connected with a spring and a sliding block is fixedly installed in the installation groove, and a through-hole connecting disc is fixedly installed between the sliding blocks. A conical body with a through hole is fixedly installed on one side of the through-hole connecting disc.

[0007] By adopting the above technical scheme, the connecting spring is arranged to achieve penetrating and fixed connection.

[0008] Preferably, the elastic opening and closing structure comprises a second flange connecting pipe fixedly installed at the other end of the swing check valve body. A through-hole conveying disc is fixedly installed in the second flange connecting pipe through another sliding block. A fixed groove is formed on one side of the through-hole conveying disc.

[0009] Through the technical scheme, the through hole conveying disc is arranged to convey fluid.

[0010] Preferably, the fixing groove is internally fixed with a connecting rod penetrating through a torsion spring, and the connecting rod is rotatably connected with the adjusting plate through a matched hole, and the torsion spring is fixedly installed at both ends and the rear side of the fixing groove and the adjusting plate.

[0011] Through the technical scheme, the torsion spring is arranged to elastically adjust.

[0012] Preferably, the mounting groove is provided with two groups, and the mounting groove is conveniently arranged in the first flange connecting pipe and the second flange connecting pipe.

[0013] Through the technical scheme, the second flange connecting pipe is arranged to be internally arranged.

[0014] Preferably, the fixing groove is annularly arranged.

[0015] Through the technical scheme, the fixing groove is arranged to be fixedly installed.

[0016] Preferably, the adjusting plate is provided with four pieces, and each piece of the adjusting plate is arranged in a petal shape.

[0017] Through the technical scheme, the adjusting plate is arranged to be rotatably elastically adjusted.

[0018] Compared with the prior art, the utility model discloses a swing type check valve with a water hammer effect,

[0019] (1) the case is provided with: a water hammer structure, so that the current water hammer check valve is all adopted the structure of external bypass, this structure can play the generation of water hammer, but the valve has the external leakage point, the weight of the valve increases, the cost is improved, and the size is large, and the installation space is limited, when the liquid in the first flange connecting pipe flows reversely, the liquid flowing reversely impacts the cone and extrudes the connecting spring, the liquid flowing reversely is conveyed in the swing type check valve body, and the liquid flowing reversely is conveyed in the swing type check valve body, so that the kinetic energy of the liquid flowing reversely is reduced, and the water hammer effect is reduced.

[0020] (2) the elastic opening and closing structure is arranged, so that the kinetic energy of the liquid flowing reversely is reduced, and the water hammer effect is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the front view sectional structure schematic view of the utility model;

[0022] Figure 2 It is the waterproof hammer structure schematic view of the utility model;

[0023] Figure 3 It is the second flange connecting pipe, through hole conveying disc and adjusting plate structure schematic view of the utility model;

[0024] Figure 4 It is the through hole conveying disc, fixed groove and connecting rod structure schematic view of the utility model;

[0025] Figure 5 It is the torsion spring structure schematic view of the utility model;

[0026] Figure 6 It is the matching hole and adjusting plate structure schematic view of the utility model.

[0027] In the drawing: 1, waterproof hammer structure; 101, swing check valve body; 102, first flange connecting pipe; 103, installation groove; 104, sliding rod; 105, connecting spring; 106, sliding block; 107, through hole connecting disc; 108, cone; 109, through hole; 2, elastic opening and closing structure; 201, second flange connecting pipe; 202, through hole conveying disc; 203, fixed groove; 204, torsion spring; 205, connecting rod; 206, matching hole; 207, adjusting plate. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0029] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a swing check valve with waterproof hammer effect, such as Figure 1 And Figure 2As shown, including a waterproof hammer structure 1, the waterproof hammer structure 1 includes a swing check valve body 101 as the body, and one end of the swing check valve body 101 is fixedly installed with a first flange connecting pipe 102, and the first flange connecting pipe 102 is internally provided with a mounting groove 103, the mounting groove 103 is provided with two groups, and the mounting groove 103 is conveniently provided in the first flange connecting pipe 102 and the second flange connecting pipe 201, by the above-mentioned parts open 2 groups of 4, such not only embodies the symmetry of the structure of the above-mentioned structure, also embodies the fixed installation of the structure of the above-mentioned structure, and by the above-mentioned structure is provided with 2 groups of 4, thereby embodying the utility and fixed installation of the same number of parts of the structure of the above-mentioned structure, the mounting groove 103 is internally fixedly installed with a sliding rod 104 penetrating a connecting spring 105 and a sliding block 106, and the sliding block 106 is fixedly installed with a through hole connecting disc 107, and the through hole connecting disc 107 is fixedly installed with a conical body 108 with a through hole 109 on one side, wherein, the above-mentioned parts constitute an elastic sliding adjustment structure, the elastic sliding adjustment structure composed of the above-mentioned parts effectively changes the sliding delivery interval distance of the through hole connecting disc 107 and the through hole delivery disc 202.

[0030] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 6 , the waterproof hammer structure 1 is installed with an elastic opening and closing structure 2 at one end, the elastic opening and closing structure 2 includes a second flange connecting pipe 201 fixedly installed on the other end of the swing check valve body 101, and the second flange connecting pipe 201 is internally fixedly installed with a through hole delivery disc 202 through the other sliding block 106, and the through hole delivery disc 202 is internally provided with a fixed groove 203, the fixed groove 203 is annularly arranged, by the above-mentioned structure is annularly arranged, such not only embodies the installation of the structure of the above-mentioned structure, also embodies the axial and longitudinal axial symmetry of the structure of the above-mentioned structure, and by the above-mentioned structure is annularly arranged, thereby embodying the beauty and equidistance distribution of the structure of the above-mentioned structure, wherein, the second flange connecting pipe 201 is internally installed with the same number of parts as the first flange connecting pipe 102 to ensure the normal sliding elastic adjustment of the through hole delivery disc 202.

[0031] Further, the fixed groove 203 is internally fixed with a connecting rod 205 penetrating a torsion spring 204, and the connecting rod 205 is rotatably connected with an adjusting plate 207 through a matching hole 206, and the torsion spring 204 is fixedly installed at both ends with the fixed groove 203 and the rear side of the adjusting plate 207, the adjusting plate 207 is provided with four, and a single adjusting plate 207 is provided in a "petal" shape, when the above-mentioned parts are provided with four, not only the same number of rotating installation of the above-mentioned parts and the fixed groove 203 is embodied, but also the wrapping and merging of the above-mentioned parts and the opening and conveying are embodied, and when the above-mentioned parts are provided in a "petal" shape, the above-mentioned parts are effectively embodied.

[0032] In the above-mentioned scheme, when the liquid is conveyed in the second flange connecting pipe 201, the adjusting plate 207 is rotated and opened when the fluid impacts the through hole conveying disc 202, and the fluid liquid needs to consume part of the impact force to open the adjusting plate 207 to ensure the normal flow of the liquid in the first flange connecting pipe 102, the liquid in the first flange connecting pipe 102 is conveyed through the cone 108, but when the liquid in the first flange connecting pipe 102 flows in reverse, the reverse flowing liquid impacts the cone 108 and squeezes the connecting spring 105, and the reverse flowing liquid is conveyed in the swing type check valve body 101 to prevent the water hammer effect.

[0033] The terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only a simplified description for the convenience of describing the utility model, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A swing check valve having a water hammer protection, comprising a water hammer protection structure (1), characterized in that: The waterproof hammer structure (1) one end is installed with elastic open-close structure (2); The waterproof hammer structure (1) includes the swing check valve body (101) as the body, and the swing check valve body (101) one end is fixedly installed with the first flange connecting pipe (102), while the first flange connecting pipe (102) is internally provided with the installation groove (103); The installation groove (103) internally fixedly installs the sliding rod (104) penetrating the connecting spring (105) and the sliding block (106), and the sliding block (106) is fixedly installed with the through hole connecting disc (107), and the through hole connecting disc (107) one side is fixedly installed with the cone (108) with the through hole (109).

2. A swing check valve having a water hammer effect according to claim 1, characterized in that: The elastic open-close structure (2) includes the second flange connecting pipe (201) fixedly installed on the other end of the swing check valve body (101), and the second flange connecting pipe (201) internally fixedly installs the through hole conveying disc (202) through another sliding block (106), and the through hole conveying disc (202) one side is provided with the fixed groove (203).

3. A swing check valve having a water hammer effect according to claim 2, characterized in that: The fixed groove (203) internally fixedly has the connecting rod (205) penetrating the torsion spring (204), and the connecting rod (205) is rotatably connected with the adjusting plate (207) through the matched hole (206), and the torsion spring (204) two ends are fixedly installed with the fixed groove (203) and the adjusting plate (207) rear side respectively.

4. A swing check valve having a water hammer effect according to claim 1, wherein: The installation groove (103) is provided with 2 groups, and the installation groove (103) is conveniently provided in the first flange connecting pipe (102) and the second flange connecting pipe (201) internally.

5. A swing check valve having a water hammer effect according to claim 2, characterized in that: The fixed groove (203) is annular array.

6. A swing check valve having a water hammer effect according to claim 3, wherein: The adjusting plate (207) is provided with 4, and a single adjusting plate (207) is provided as "petals".

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