Safety check valve structure with pressure relief and impact resistance functions

Abstract

The utility model relates to the technical field of check valves, in particular to a safety check valve structure with pressure relief and impact resistance functions. The input pipe and the output pipe are fixedly communicated with the two sides of the valve body respectively; the pressure relief non-return assembly comprises a groove formed in the top of the valve body, a rotating shaft movably penetrates through the bottom of the groove, a plurality of pressure relief plates are fixedly installed on the surface of the end, extending into an inner cavity of the valve body, of the rotating shaft, and a rotating disc is fixedly installed at the end, arranged in the groove, of the rotating shaft. When a medium flows into the valve body through the input pipe, the medium can be dispersed to impact the pressure relief plate under the action of the flow guide plate and the flow guide strips, and the pressure relief plate can drive the rotating shaft to rotate clockwise together by means of force at the moment, so that the pressure relief effect on the medium is achieved, and the effect of rotation by means of force is achieved; therefore, the effects of pressure relief and impact resistance can be achieved, normal use of the check valve is guaranteed, and the service life of the check valve is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve technical field especially relates to a safe check valve structure with pressure relief impact resistance function. BACKGROUND

[0002] Check valve refers to the valve that can block the medium backflow, belongs to automatic valve, also called check valve, one-way valve, backflow valve or isolation valve.

[0003] The existing check valve generally is in the medium into the valve body, impact check assembly, open the inside of valve body, then when the medium no longer has the tendency to enter the valve body, check assembly resets, can prevent the medium backflow, but in the process, check assembly does not have pressure relief function, so as to cause check assembly damage due to the impact of medium on check assembly for a long time, so that check valve cannot guarantee normal work, for this purpose, a safe check valve structure with pressure relief impact resistance function is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a safe check valve structure with pressure relief impact resistance function.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A safe check valve structure with pressure relief impact resistance function, comprising:

[0007] Valve body;

[0008] Input pipe and output pipe are fixedly connected to the two sides of the valve body respectively;

[0009] Pressure relief check assembly, including the recess that is set up in the top of valve body, the bottom of recess movable penetrates the rotating shaft, the rotating shaft extends to the surface fixed mounting of a plurality of pressure relief plates in the one end of valve body inner chamber, and the one end fixed mounting of rotating shaft is installed in the recess rotary disc, the side of rotary disc is fixedly installed with a plurality of check pieces, the top of valve body is detachably installed with sealing cover, the bottom of sealing cover is rotatably installed with check strip through the rotating shaft, the outside of check strip is contacted with right angle limit block, and the right angle limit block is fixedly installed at the bottom of sealing cover.

[0010] Preferably, the input pipe is fixedly installed with a deflector, and the deflector is inclinedly arranged.

[0011] Preferably, a plurality of pressure relief plates and check pieces are arranged in a circular array around the rotating shaft.

[0012] Preferably, a plurality of bolts are threadedly connected between the top of the sealing cover and the top of the valve body.

[0013] Preferably, the guide plate is fixedly installed with a plurality of guide strips away from one side of the pressure relief plate, and the plurality of guide strips are arranged in a vertical linear array.

[0014] Compared with the prior art, the safety check valve structure with pressure relief and impact resistance function has the advantages that:

[0015] When the medium flows into the valve body through the input pipe, the medium is dispersed to impact the pressure relief plate under the action of the guide plate and the plurality of guide strips, at this time, the pressure relief plate can drive the rotating shaft to rotate clockwise, thereby realizing the pressure relief effect on the medium, so as to realize the effect of rotating by force, the effect of pressure relief and impact resistance is achieved, the normal use of the check valve is ensured, and the service life of the check valve is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The first perspective view of the safety check valve structure with pressure relief and impact resistance function is shown in the structure schematic view.

[0017] Figure 2 The structure schematic view of the safety check valve structure with pressure relief and impact resistance function is shown in the structure schematic view.

[0018] Figure 3 The second perspective view of the safety check valve structure with pressure relief and impact resistance function is shown in the structure schematic view.

[0019] Figure 4 The structure of the safety check valve structure with pressure relief and impact resistance function is shown in the structure schematic view. Figure 1 The structure of the safety check valve structure with pressure relief and impact resistance function is shown in the structure schematic view.

[0020] Figure 5 The structure of the safety check valve structure with pressure relief and impact resistance function is shown in the structure schematic view. Figure 3 The structure of the safety check valve structure with pressure relief and impact resistance function is shown in the structure schematic view.

[0021] In the figure: 1 valve body, 2 input pipe, 3 output pipe, 4 groove, 5 rotating shaft, 6 pressure relief plate, 7 rotating disc, 8 check piece, 9 sealing cover, 10 check strip, 11 right-angle limiting block, 12 bolt, 13 guide plate, 14 guide strip. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0023] Referring to Figures 1 to 5 , a safety check valve structure with pressure relief and impact resistance function, comprising:

[0024] Valve body 1, input pipe 2 and output pipe 3 are fixedly connected to both sides of valve body 1 respectively, pressure relief check valve assembly, including the recess 4 opened in the top of valve body 1, the bottom of recess 4 is movably penetrated by rotating shaft 5, one end of rotating shaft 5 extending to the inner cavity of valve body 1 is fixedly installed with multiple pressure relief plates 6, and one end of rotating shaft 5 placed in recess 4 is fixedly installed with rotating disc 7, the side of rotating disc 7 is fixedly installed with multiple check pieces 8, multiple pressure relief plates 6 and check pieces 8 are arranged in circumferential array around rotating shaft 5, when medium flows into valve body 1 through input pipe 2, it will impact pressure relief plate 6, at this time, pressure relief plate 6 can drive rotating shaft 5 to rotate clockwise together, so as to realize the pressure relief effect of medium, so as to play a role of power rotation, achieve the effect of pressure relief and impact resistance, ensure the normal use of check valve, and prolong the service life of check valve.

[0025] The top of valve body 1 is detachably installed with sealing cover 9, the bottom of sealing cover 9 is rotatably installed with check strip 10 through rotating shaft (the existing technology with elastic rotating shaft can be used, which can automatically reset when not under force), the outer side of check strip 10 is in contact with right angle limiting block 11, and the right angle limiting block 11 is fixedly installed on the bottom of sealing cover 9, when rotating shaft 5 rotates clockwise due to the impact of medium on pressure relief plate 6, rotating disc 7 will also drive each check piece 8 to rotate clockwise synchronously, and when check piece 8 rotates clockwise, check strip 10 can be rotated by force, so that pressure relief plate 6 can always rotate when medium flows, ensuring the flow of medium in valve body 1, and when check piece 8 is no longer in contact with check strip 10, check strip 10 can rotate downward under the elastic force of rotating shaft and reset, at this time, right angle limiting block 11 can just limit the other side of check strip 10, so that each check piece 8 will not rotate counterclockwise, that is, pressure relief plate 6 will not rotate counterclockwise, realizing the effect of medium check.

[0026] Further, multiple bolts 12 are threadedly connected between the top of sealing cover 9 and the top of valve body 1, and the sealing cover 9 can be removed by removing the multiple bolts 12 to maintain the rotating shaft and check strip 10, so as to ensure the normal work.

[0027] Further, guide plate 13 is fixedly installed in input pipe 2, and the guide plate 13 is inclinedly arranged, multiple guide strips 14 are fixedly installed on the side of guide plate 13 away from pressure relief plate 6, and the multiple guide strips 14 are arranged in vertical linear array, when medium enters valve body 1 through input pipe 2, it can impact the relatively front side of pressure relief plate 6 under the action of guide plate 13, so that each pressure relief plate 6 can rotate clockwise smoothly, and at the same time, the medium can be dispersed under the action of each guide strip 14, so as to avoid the medium impacting a certain place of pressure relief plate 6, thereby further playing the pressure relief effect on the medium.

[0028] Further, the fixed connection above, unless otherwise specifically provided and limited, should be broadly understood, for example, can be welding, or gluing, or integrally formed with the usual means well known to those skilled in the art.

[0029] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A safety check valve structure having a pressure relief impact resistance function, characterized by, The utility model relates to a valve body (1); Input pipe (2) and output pipe (3) are fixedly connected to both sides of the valve body (1) respectively; Pressure relief check valve assembly includes the recess (4) of setting in the top of valve body (1), the bottom of recess (4) is through the rotatory shaft (5) of activity, rotatory shaft (5) extends to the end surface fixed mounting of valve body (1) inner chamber has a plurality of pressure relief plate (6), and rotatory shaft (5) is placed in recess (4) one end fixed mounting has the rotating disc (7), the side of rotating disc (7) is fixedly installed with a plurality of check piece (8), the top of valve body (1) is detachably installed with the sealing cover (9), the bottom of sealing cover (9) is rotatably installed with the check bar (10) through the rotating shaft, the outside of check bar (10) is contacted with the right angle limit block (11), and the right angle limit block (11) is fixedly installed on the bottom of sealing cover (9). The input pipe (2) is fixedly installed with a guide plate (13), and the guide plate (13) is inclinedly arranged.

2. The safety check valve structure with pressure relief and impact resistance according to claim 1, characterized in that, A plurality of pressure relief plates (6) and check pieces (8) are arranged in a circular array around the rotatory shaft (5).

3. The safety check valve structure with pressure relief and impact resistance according to claim 1, characterized in that, The top of the sealing cover (9) and the top of the valve body (1) are threadedly connected with a plurality of bolts (12).

4. The safety check valve structure with pressure relief and impact resistance according to claim 1, wherein The guide plate (13) is fixedly installed with a plurality of guide strips (14) on the side away from the pressure relief plate (6), and the plurality of guide strips (14) are arranged in a vertical linear array.

5. The safety check valve structure with pressure relief and impact resistance according to claim 2, wherein ​

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