Butterfly valve with anti-impact structure

Abstract

The utility model provides a butterfly valve with an anti-impact structure, which comprises a butterfly valve main body, an auxiliary support piece and an inlet buffer piece, and a butterfly valve shell is arranged on the outer side of the lower end of the inner composition of the butterfly valve main body. Compared with the prior art, the butterfly valve has the advantages that the butterfly valve body, the auxiliary supporting piece and the inlet buffering piece are additionally arranged, the inlet buffering piece is installed at the inlet end of the butterfly valve, the butterfly valve flange and the buffering piece flange are connected and fixed through the bolts, and media enter through the inlet buffering piece, flow through the buffering pipe and flow through the buffering plate to reduce water flow impact force; according to the anti-impact butterfly valve, the outer supporting hole and the inner supporting hole are formed in the valve element, the connecting outer thread and the connecting inner thread are screwed to fix the auxiliary supporting piece in a rotating mode, the supporting column is embedded into the outer supporting hole and the inner supporting hole, the front end and the rear end of the valve element are supported when the valve element is closed, and therefore the anti-impact effect can be achieved; and the medium is buffered by the buffer column.

Description

Technical Field

[0001] This utility model belongs to the field of butterfly valve technology, and specifically relates to a butterfly valve with an impact-resistant structure. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve used for on / off control of low-pressure pipeline media. A butterfly valve is characterized by a disc-shaped closing element (valve disc or butterfly plate) that rotates around a valve shaft to open and close. When a butterfly valve is used to shut off flowing media, the medium entering from the inlet experiences significant impact force. This impact can cause the valve disc or butterfly plate, which are responsible for the closing action, to wobble over time. Increased friction on the sealing components can lead to gaps, causing leakage and reducing the valve's shut-off function. Furthermore, the significant impact force can exacerbate damage to the valve body, shortening maintenance or replacement cycles and hindering its long-term use.

[0003] In summary, butterfly valves without an impact-resistant structure have some problems in use, so it is hoped that a new structure can be proposed to solve the above-mentioned technical problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a butterfly valve with an impact-resistant structure to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a butterfly valve with an impact-resistant structure, comprising: a butterfly valve body, an auxiliary support component, and an inlet buffer component. The lower outer side of the butterfly valve body is provided with a butterfly valve shell. Support seats for installing auxiliary support components are fixedly connected to the outer sides of the front and rear ends of the butterfly valve shell. An auxiliary support component for providing auxiliary support at both ends when the valve core is closed is provided at the end of the support seat away from the butterfly valve shell. Butterfly valve fittings are provided at both ends of the butterfly valve shell. A butterfly valve flange is fixedly connected to the end of the butterfly valve fitting away from the center of the butterfly valve body. An inlet buffer component for buffering the medium before it passes through the butterfly valve body is provided on the right side of the right end of the butterfly valve flange.

[0006] In a preferred embodiment, the inlet buffer has buffer flanges at both the left and right ends, and a buffer tube with an n-shaped structure is provided between the two sets of buffer flanges.

[0007] In a preferred embodiment, a medium buffer plate is fixedly connected to the middle position of the upper end of the inner side of the buffer tube. The left end of the buffer flange is fixed to the right end of the butterfly valve flange by bolts. The outer side of the support base is provided with external threads. The inlet buffer is fixed to the inlet side of the butterfly valve body by connecting the buffer flange to the right end of the butterfly valve flange, so that the flowing medium is buffered by the buffer tube and the buffer plate.

[0008] In a preferred embodiment, buffer springs are provided on the outer side of the support base and at both ends of the butterfly valve housing. The auxiliary support component has a handle at the end away from the butterfly valve body, and a connecting ring is provided at the end of the handle near the butterfly valve body.

[0009] In a preferred embodiment, the inner side of the connecting ring is provided with an internal thread, which is threadedly engaged with the external thread.

[0010] The butterfly valve housing has a valve core for controlling the flow of the medium inside. The valve core has a rotating shaft inside. The butterfly valve housing has a control column above it. The control column has a control wheel above it. The auxiliary support rotates to engage the external thread and the internal thread, causing the support column to move toward the valve core and engage with both the external and internal support holes. This provides auxiliary support to both ends of the valve core and improves its impact resistance.

[0011] As a preferred embodiment, arc-shaped protrusions for improving the strength of the valve core are fixedly connected to both the left and right sides of the valve core, and external support holes are opened at the center of the front and rear ends of the butterfly valve body and the support seat.

[0012] The valve core has inner support holes on its outer surfaces at both ends. The connecting ring has a support column at its inner center. The support column is fitted into both the outer and inner support holes. The arc-shaped protrusion seat can improve the strength of the valve core and enhance its impact resistance.

[0013] In a preferred embodiment, the right side of the butterfly valve flange at the right end is provided with a fitting ring groove, and a retaining ring is movably installed inside the fitting ring groove. The retaining ring is composed of an outer fitting circular plate and an inner buffer column. The fitting circular plate and the fitting circular groove fit together, so that the retaining ring can be installed in the fitting circular groove at the inlet, and the medium is buffered by the buffer column.

[0014] The beneficial effects of this utility model after adopting the above technical solution are as follows: By adding the butterfly valve body, auxiliary support, and inlet buffer, the inlet buffer is installed at the inlet end of the butterfly valve, and the flange of the butterfly valve and the flange of the buffer are fixed by bolts. The medium enters through the inlet buffer, flows through the buffer pipe and the buffer plate to reduce the impact force of the water flow. The auxiliary support is rotated and fixed by screwing the external thread and the internal thread of the connection, so that the support column is fitted with the external support hole and the internal support hole, and supports the front and rear ends of the valve core when it is closed, thereby achieving the effect of anti-impact. By adding the butterfly valve body, a retaining ring can be installed in the fitting groove at the inlet, so that the medium is buffered by the buffer column. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a butterfly valve with an impact-resistant structure according to the present invention.

[0017] Figure 2 This is a schematic diagram of the main body of a butterfly valve with an impact-resistant structure according to the present invention.

[0018] Figure 3 This is a schematic diagram of the butterfly valve body with a shock-resistant structure according to the present invention, in which the retaining ring is removed.

[0019] Figure 4 This is a partial cross-sectional schematic diagram of the butterfly valve body in a butterfly valve with an impact-resistant structure according to this utility model.

[0020] Figure 5 This is a schematic diagram of the auxiliary support component in a butterfly valve with an impact-resistant structure according to this utility model.

[0021] Figure 6 This is a cross-sectional schematic diagram of the inlet buffer component in a butterfly valve with an impact-resistant structure according to this utility model.

[0022] In the diagram, 100-Butterfly valve body, 101-Butterfly valve housing, 102-Control column, 103-Control wheel, 104-Matching groove, 105-Retaining ring, 106-Support seat, 107-Connecting external thread, 108-Buffer spring, 109-Outer support hole, 110-Valve core, 111-Arc-shaped protrusion seat, 112-Inner support hole, 113-Butterfly valve flange;

[0023] 200-Auxiliary support component, 201-Rotating handle, 202-Connecting ring, 203-Connecting internal thread, 204-Support column;

[0024] 300-Inlet buffer, 301-Buffer flange, 302-Buffer pipe, 303-Buffer plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6 This utility model provides a technical solution: a butterfly valve with an impact-resistant structure, including: a butterfly valve body 100, an auxiliary support 200 and an inlet buffer 300, wherein the lower outer side of the butterfly valve body 100 is provided with a butterfly valve shell 101.

[0027] A support base 106 for installing auxiliary support 200 is fixedly connected to the outer sides of the front and rear ends of the butterfly valve body 101. The support base 106 is provided with an auxiliary support 200 for providing auxiliary support at both ends when the valve core 110 is closed at the end away from the butterfly valve body 101.

[0028] The butterfly valve body 101 is provided with butterfly valve fittings at both ends. The butterfly valve fitting is fixedly connected to a butterfly valve flange 113 at the end away from the center of the butterfly valve body 100. An inlet buffer 300 is provided on the right side of the butterfly valve flange 113 for buffering the medium before it passes through the butterfly valve body 100.

[0029] The inlet buffer 300 has buffer flanges 301 at both the left and right ends, and a buffer tube 302 is provided between the two sets of buffer flanges 301. The buffer tube 302 has an n-shaped structure.

[0030] A medium buffer plate 303 is fixedly connected to the middle position of the upper end of the inner side of the buffer pipe 302. The left buffer flange 301 and the right butterfly valve flange 113 are fixedly connected by bolts. The outer side of the support base 106 is provided with a connecting external thread 107. The inlet buffer 300 is fixed to the inlet side of the butterfly valve body 100 by connecting the buffer flange 301 and the right butterfly valve flange 113, so that the medium flowing through is buffered by the buffer pipe 302 and the buffer plate 303.

[0031] A buffer spring 108 is provided on the outer side of the support base 106 and at both ends of the butterfly valve body 101. The auxiliary support component 200 has a handle 201 at the end away from the butterfly valve body 100 and a connecting ring 202 at the end of the handle 201 close to the butterfly valve body 100.

[0032] The inner side of the connecting ring 202 is provided with an internal thread 203, which is threadedly connected to the external thread 107.

[0033] The butterfly valve housing 101 has a valve core 110 inside for controlling the flow of the medium. The valve core 110 has a rotating shaft inside. The butterfly valve housing 101 has a control column 102 above it. The control column 102 has a control wheel 103 above it. The auxiliary support 200 rotates to engage the external thread 107 with the internal thread 203, and the support column 204 moves toward the valve core 110 and engages with both the external support hole 109 and the internal support hole 112. This provides auxiliary support to both ends of the valve core 110 and improves its impact resistance.

[0034] Both sides of the valve core 110 are fixedly connected with arc-shaped protrusion seats 111 for improving the strength of the valve core 110. The inner sides of the front and rear ends of the butterfly valve body 101 and the center of the support seat 106 are provided with external support holes 109.

[0035] The valve core 110 has inner support holes 112 on the outer sides of both the front and rear ends. The connecting ring 202 has a support column 204 at the center of its inner side. The support column 204 is fitted with the outer support hole 109 and the inner support hole 112. The arc-shaped protrusion seat 111 can improve the strength of the valve core 110 and improve its impact resistance.

[0036] Please see Figures 1-6 As the first embodiment of this utility model: First, the user installs the inlet buffer 300 to the inlet end of the butterfly valve body 100, and fixes the butterfly valve flange 113 and the buffer flange 301 with bolts. The medium enters through the inlet buffer 300, flows through the buffer pipe 302 and the buffer plate 303 to reduce the water flow impact force. Second, after the valve core 110 is closed by rotation, the user rotates the handle 201 to make the connecting external thread 107 and the connecting internal thread 203 engage, so that the support column 204 moves towards the valve core 110 and is engaged with both the external support hole 109 and the internal support hole 112. When the valve core 110 is closed, it supports the front and rear ends. The arc-shaped protrusion seat 111 can improve the strength of the valve core 110 to improve the impact resistance performance, thereby achieving the effect of improving the impact resistance performance.

[0037] The right side of the right butterfly valve flange 113 is provided with a fitting annular groove 104. A retaining ring 105 is movably installed inside the fitting annular groove 104. The retaining ring 105 is composed of an outer fitting circular plate and an inner buffer column. The fitting circular plate and the fitting circular groove 104 fit together, so that the retaining ring 105 can be installed in the fitting circular groove 104 at the inlet, so that the medium is buffered by the buffer column.

[0038] Please see Figures 1-3 As a second embodiment of this utility model: Based on the first embodiment above, before installing the inlet buffer 300, the user can fit the fitting circular plate in the retaining ring 105 with the fitting circular groove 104, and press and fix the retaining ring 105 by fixing the inlet buffer 300. When the medium enters the butterfly valve body 100, it can first be diverted and released by the buffer column, thereby improving the impact resistance effect.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A butterfly valve with an anti-impact structure, comprising: The butterfly valve body (100), auxiliary support (200) and inlet buffer (300) are characterized in that: the lower outer side of the butterfly valve body (100) is provided with a butterfly valve shell (101). The butterfly valve housing (101) has a support base (106) fixedly connected to the outer sides of the front and rear ends for installing auxiliary support components (200). The support base (106) has an auxiliary support component (200) at one end away from the butterfly valve housing (101) for providing auxiliary support at both ends when the valve core (110) is closed. The butterfly valve housing (101) is provided with butterfly valve fittings at both ends. The butterfly valve fitting is fixedly connected to a butterfly valve flange (113) at the end away from the center of the butterfly valve body (100). The right side of the butterfly valve flange (113) is provided with an inlet buffer (300) for buffering the medium before it passes through the butterfly valve body (100).

2. The butterfly valve with an anti-impact structure as described in claim 1, characterized in that: The inlet buffer (300) has buffer flanges (301) at both the left and right ends of its internal components, and a buffer tube (302) is provided between the two sets of buffer flanges (301). The buffer tube (302) has an n-shaped structure.

3. A butterfly valve with an anti-impact structure as described in claim 2, characterized in that: The buffer tube (302) is fixedly connected to the middle position of the upper inner side of the buffer plate (303). The buffer flange (301) at the left end and the butterfly valve flange (113) at the right end are fixedly connected by bolts. The support base (106) is provided with external thread (107) on the outer side.

4. A butterfly valve with an anti-impact structure as described in claim 3, characterized in that: The outer side of the support base (106) and both ends of the butterfly valve housing (101) are provided with buffer springs (108). The auxiliary support (200) has a handle (201) at the end away from the butterfly valve body (100) and a connecting ring (202) at the end of the handle (201) close to the butterfly valve body (100).

5. A butterfly valve with an anti-impact structure as described in claim 4, characterized in that: The inner side of the connecting ring (202) is provided with an internal thread (203), which is threadedly connected to the external thread (107); The butterfly valve housing (101) is provided with a valve core (110) for controlling the opening and closing of the medium inside the valve core (110), and a rotating shaft is provided inside the valve core (110). A control column (102) is provided above the butterfly valve housing (101), and a control wheel (103) is provided above the control column (102).

6. A butterfly valve with an anti-impact structure as described in claim 5, characterized in that: The valve core (110) is fixedly connected to arc-shaped protrusions (111) on both the left and right sides to improve the strength of the valve core (110). The butterfly valve housing (101) has an outer support hole (109) at the center of the front and rear ends and the support seat (106). The valve core (110) has an inner support hole (112) on both the front and rear outer sides. The connecting ring (202) has a support column (204) at the center of its inner side. The support column (204) is fitted into the outer support hole (109) and the inner support hole (112).

7. A butterfly valve with an anti-impact structure as described in claim 1, characterized in that: The right side of the butterfly valve flange (113) at the right end is provided with a fitting ring groove (104). A retaining ring (105) is movably installed inside the fitting ring groove (104). The retaining ring (105) is composed of an outer fitting circular plate and an inner buffer column. The fitting circular plate and the fitting circular groove (104) fit together.

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