CN223090075U - Double-flap butt-clamp check valve - Google Patents
Double-flap butt-clamp check valve Download PDFInfo
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- CN223090075U CN223090075U CN202422131570.6U CN202422131570U CN223090075U CN 223090075 U CN223090075 U CN 223090075U CN 202422131570 U CN202422131570 U CN 202422131570U CN 223090075 U CN223090075 U CN 223090075U
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- butterfly plate
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- check valve
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Abstract
本实用新型公开了一种双瓣对夹止回阀，包括阀体，所述阀体上开设有进口端和出口端，所述阀体中部设置有环形凸台，所述阀体上横向贯穿设置有止动销，所述止动销朝向出口端一侧还安装有铰链销，所述铰链销上转动设置有左蝶板以及对称设置的右蝶板，所述铰链销上套设有两组压紧于左蝶板和右蝶板上的扭簧，所述阀体内位于左蝶板和右蝶板的连接处设置有支撑座，所述左蝶板和右蝶板与支撑座之间分别设置有两组对称安装的缓冲组件，本实用新型的目的在于提供一种双瓣对夹止回阀，能够减少蝶板在关闭时与阀体的撞击力，提升蝶板、密封圈的使用寿命。
The utility model discloses a double-flap clamp check valve, including a valve body, wherein an inlet end and an outlet end are formed on the valve body, an annular boss is arranged in the middle of the valve body, a stop pin is arranged transversely through the valve body, a hinge pin is also installed on the stop pin towards the outlet end, a left butterfly plate and a symmetrically arranged right butterfly plate are rotatably arranged on the hinge pin, two groups of torsion springs which are pressed on the left butterfly plate and the right butterfly plate are sleeved on the hinge pin, a support seat is arranged at the connection between the left butterfly plate and the right butterfly plate in the valve body, two groups of symmetrically installed buffer components are respectively arranged between the left butterfly plate and the right butterfly plate and the support seat, the purpose of the utility model is to provide a double-flap clamp check valve, which can reduce the impact force of the butterfly plate with the valve body when closing, and improve the service life of the butterfly plate and the sealing ring.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a double-flap butt-clamp check valve.
Background
The double-clack check valve is used for preventing reverse flow of medium in pure pipeline, industrial, environment-friendly, water treatment and high-rise building water supply and drainage pipeline, the check valve adopts double-clack type butterfly plate with two semi-circles and spring forced reset, the sealing surface can be made of body surfacing wear-resistant material or lining rubber, the butterfly plate is opened under the action of fluid pressure, fluid flows from inlet side to outlet side, when the pressure of inlet side is lower than that of outlet side, the butterfly plate is automatically closed under the action of factors such as fluid pressure difference and gravity to prevent fluid backflow, and when the butterfly plate is automatically closed, due to the reduction of fluid pressure difference, the impact pressure is overlarge when sealing with a sealing table in the valve body, so that the sealing effect of a sealing ring can be continuously reduced, and the service life is greatly reduced.
Disclosure of utility model
The utility model aims to provide a double-flap butt-clamp check valve, which can reduce the impact force of a butterfly plate and a valve body when the butterfly plate is closed and prolong the service lives of the butterfly plate and a sealing ring.
The double-flap butt-clamp check valve comprises a valve body, wherein an inlet end and an outlet end are formed in the valve body, an annular boss is arranged in the middle of the valve body, a stop pin is transversely arranged on the valve body in a penetrating mode, a hinge pin is further arranged on one side, facing the outlet end, of the stop pin, a left butterfly plate and a symmetrically arranged right butterfly plate are rotatably arranged on the hinge pin, two groups of torsion springs pressed on the left butterfly plate and the right butterfly plate are sleeved on the hinge pin, a supporting seat is arranged at the joint of the left butterfly plate and the right butterfly plate in the valve body, and two groups of symmetrically arranged buffer assemblies are respectively arranged between the left butterfly plate and the right butterfly plate and the supporting seat.
Preferably, the left butterfly plate is provided with an abutting part and a sealing part, the left butterfly plate is provided with an annular groove, the sealing part is embedded in the annular groove and forms abutting seal with the annular boss, one end of the abutting part is connected with the other end of the left butterfly plate, and the abutting part protrudes towards one side of the supporting seat.
Preferably, the T-shaped inserting groove is formed in the abutting portion, the buffer assembly comprises a sealing panel and an elastic piece, the sealing panel is inserted into the T-shaped inserting groove, and the elastic piece is clamped between the sealing panel and the inserting groove.
Preferably, the sealing panel is provided with a first supporting leg, a U-shaped portion and a second supporting leg in sequence, the first supporting leg and the second supporting leg are respectively connected to two sides of a port of the U-shaped portion, the T-shaped inserting groove is provided with a first step and a second step which are in supporting fit with the first supporting leg and the second supporting leg, and one end of the elastic piece is embedded in a groove of the U-shaped portion.
Preferably, the first step is provided with a first mounting hole, the first supporting leg is correspondingly provided with a second mounting hole, the inner wall of the T-shaped inserting groove is provided with a first screw hole corresponding to the second, the first mounting hole is provided with a first bolt, and the first bolt sequentially penetrates through the first mounting hole and the second mounting hole and is screwed in the first screw hole.
Preferably, the mounting groove is formed in the supporting seat, the damping gasket is embedded in the mounting groove, one end of the damping gasket is propped against and arranged in the mounting groove, and the other end of the damping gasket is propped against and tightly seals one end of the U-shaped part.
Preferably, the damping gasket is provided with two positioning support legs towards one side of the mounting groove, and the bottom of the mounting groove is provided with a positioning groove matched with the positioning support legs.
Compared with the prior art, the butterfly valve has the beneficial effects that when the fluid is reduced, the left butterfly plate and the right butterfly plate rotate to one side of the annular boss, at the moment, the abutting part forms abutting friction with the U-shaped part on the upper part and the shock absorption gasket on the supporting seat, the U-shaped part is contracted inwards along with the restoring force of the butterfly plate by utilizing the elastic piece, and meanwhile, the elastic piece releases the elastic force to increase the abutting friction force between the U-shaped part and the shock absorption gasket.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of the present utility model;
FIG. 2 is a top view partially in cross-section of the present utility model;
FIG. 3 is an enlarged view of the portion A of the present utility model.
1, A valve body, 2, an inlet end, 3, an outlet end, 4, an annular boss, 5, a stop pin, 8, a hinge pin, 9, a left butterfly plate, 10, a right butterfly plate, 11, a torsion spring, 12, a supporting seat, 13, a buffer component, 14, an abutting part, 15, a sealing part, 16, an annular groove, 17, a T-shaped inserting groove, 18, a sealing panel, 19, an elastic piece, 20, a first support leg, 21, a U-shaped part, 23, a second support leg, 24, a first step, 25, a second step, 26, a first mounting hole, 27, a second mounting hole, 28, a first screw hole, 29, a first bolt, 30, a mounting groove, 31, a shock absorption gasket, 32, a positioning support leg, 33 and a positioning groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment is that a double-clack check valve is shown in the accompanying drawings 1-3, the double-clack check valve comprises a valve body 1, an inlet end 2 and an outlet end 3 are arranged on the valve body 1, an annular boss 4 is arranged in the middle of the valve body 1, a stop pin 5 is transversely arranged on the valve body 1 in a penetrating mode, a hinge pin 8 is further arranged on one side of the stop pin 5, which faces the outlet end 3, a left butterfly plate 9 and a symmetrically arranged right butterfly plate 10 are rotatably arranged on the hinge pin 8, two groups of torsion springs 11 which are tightly pressed on the left butterfly plate 9 and the right butterfly plate 10 are sleeved on the hinge pin 8, a supporting seat 12 is arranged at the joint of the left butterfly plate 9 and the right butterfly plate 10 in the valve body 1, two groups of symmetrically arranged buffer assemblies 13 are respectively arranged between the left butterfly plate 9 and the right butterfly plate 10 and the supporting seat 12, when fluid is reduced, the left butterfly plate 9 and the right butterfly plate 10 rotate towards the annular boss 4, at the moment, a abutting part 14 forms abutting friction with a damping gasket 31 on the supporting seat 12 with a U-shaped part 21, and an elastic piece 19 is tightly contracted by using an elastic force of the U-shaped part 21 of the plate, and the elastic force of the elastic piece is reduced, and the service life of the valve body is simultaneously reduced.
As shown in fig. 1, the left butterfly plate 9 is provided with an abutting portion 14 (as an integral structure) and a sealing portion 15 (specifically made of rubber), the left butterfly plate 9 is provided with an annular groove 16, the sealing portion 15 is embedded in the annular groove 16 and forms an abutting seal with the annular boss 4, one end of the abutting portion 14 is connected with the other end of the left butterfly plate 9 and protrudes towards one side of the supporting seat 12, sealing fit is formed between the sealing portion 15 and the annular boss 4, and structural jamming is formed when the protrusion of the abutting portion 14 avoids rotating.
As shown in fig. 3, the abutting portion 14 is provided with a T-shaped inserting groove 17, the buffer assembly 13 includes a sealing panel 18 and an elastic member 19 (specifically, a pressure spring), the sealing panel 18 is inserted into the T-shaped inserting groove 17, and the elastic member 19 is clamped between the sealing panel 18 and the inserting groove, so that the sealing panel 18 can perform expansion operation in the T-shaped inserting groove 17 through the elastic member 19.
As shown in fig. 3, the sealing panel 18 is sequentially provided with a first leg 20, a U-shaped portion 21 and a second leg 23 (as an integral structure), the first leg 20 and the second leg 23 are respectively connected to two sides of the port of the U-shaped portion 21, the T-shaped inserting groove 17 is provided with a first step 24 and a second step 25 which form supporting fit with the first leg 20 and the second leg 23, one end of the elastic member 19 is embedded in the groove of the U-shaped portion 21, the first leg 20 and the second leg 23 are utilized to play a role in positioning and supporting, the U-shaped portion 21 can limit the telescopic travel of the elastic member 19, and the elastic member 19 is stably telescopic.
As shown in fig. 3, the first step 24 is provided with a first mounting hole 26, the first supporting leg 20 is correspondingly provided with a second mounting hole 27, the inner wall of the T-shaped inserting groove 17 is provided with a first screw hole 28 corresponding to the second phase, the first mounting hole 26 is provided with a first bolt 29, the first bolt 29 sequentially passes through the first mounting hole 26 and the second mounting hole 27 and is screwed into the first screw hole 28, (the right butterfly plate 10 is arranged in the same structure), the sealing panel 18 passes through the second mounting hole 27 provided by the first supporting leg 20, so that the telescopic travel is limited, left and right shaking during operation is avoided, and meanwhile, the first bolt 29 plays a fixed role to prevent the sealing panel 18 from sliding out from two sides.
As shown in fig. 3, the supporting seat 12 is provided with a mounting groove 30, the mounting groove 30 is embedded with a damping pad 31, one end of the damping pad 31 is tightly supported in the mounting groove 30, and the other end forms a seal with one end of the U-shaped portion 21, thereby increasing the pressure friction with the U-shaped portion 21 and reducing the abrasion of the U-shaped portion 21.
As shown in fig. 3, the damping pad 31 (made of rubber material) is provided with two positioning legs 32 (as an integral structure) towards one side of the mounting groove 30, and a positioning groove 33 adapted to the positioning legs 32 is formed at the bottom of the mounting groove 30, so that the damping pad 31 is prevented from falling off, and a good fixing effect is achieved.
In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, and are not to be construed as limiting the present utility model.
Claims (5)
1. The double-flap butt-clamp check valve comprises a valve body (1), an inlet end (2) and an outlet end (3) are arranged on the valve body (1), an annular boss (4) is arranged in the middle of the valve body (1), and the double-flap butt-clamp check valve is characterized in that a stop pin (5) is transversely arranged on the valve body (1) in a penetrating mode, a hinge pin (8) is further arranged on one side, facing the outlet end (3), of the stop pin (5), a left butterfly plate (9) and a symmetrically arranged right butterfly plate (10) are rotatably arranged on the hinge pin (8), two groups of torsion springs (11) which are tightly pressed on the left butterfly plate (9) and the right butterfly plate (10) are sleeved on the hinge pin (8), a supporting seat (12) is arranged at the joint of the left butterfly plate (9) and the right butterfly plate (10) in the valve body (1), two groups of symmetrically arranged buffer assemblies (13) are respectively arranged between the left butterfly plate (9) and the supporting seat (12), a butt part (14) and a sealing part (15) are arranged on the left butterfly plate (9), a sealing part (16) is formed in the joint part between the left butterfly plate (9) and the annular boss (14), and the annular boss (16) is formed in the sealing part (16), towards protruding of supporting seat (12) one side, T shape grafting groove (17) have been seted up on butt portion (14), buffer unit (13) are including sealing panel (18) and elastic component (19), sealing panel (18) grafting sets up in T shape grafting groove (17), elastic component (19) press from both sides tightly set up with between sealing panel (18) and the grafting groove.
2. The double-flap butt-clamp check valve according to claim 1, wherein the sealing panel (18) is sequentially provided with a first support leg (20), a U-shaped portion (21) and a second support leg (23), the first support leg (20) and the second support leg (23) are respectively connected to two sides of a port of the U-shaped portion (21), the T-shaped inserting groove (17) is provided with a first step (24) and a second step (25) which form supporting fit with the first support leg (20) and the second support leg (23), and one end of the elastic piece (19) is embedded in a groove of the U-shaped portion (21).
3. The double-flap butt-clamp check valve according to claim 2, wherein the first step (24) is provided with a first mounting hole (26), the first support leg (20) is correspondingly provided with a second mounting hole (27), the inner wall of the T-shaped inserting groove (17) is provided with a first screw hole (28) corresponding to the second, the first mounting hole (26) is provided with a first bolt (29), and the first bolt (29) sequentially penetrates through the first mounting hole (26), the second mounting hole (27) and is screwed in the first screw hole (28).
4. The double-flap butt-clamp check valve of claim 3, wherein the supporting seat (12) is provided with a mounting groove (30), the mounting groove (30) is internally provided with a shock absorption gasket (31), one end of the shock absorption gasket (31) is tightly propped in the mounting groove (30), and the other end of the shock absorption gasket is tightly propped against one end of the U-shaped part (21).
5. The double-flap butt-clamp check valve according to claim 4, wherein two positioning support legs (32) are arranged on one side, facing the mounting groove (30), of the damping gasket (31), and positioning grooves (33) matched with the positioning support legs (32) are formed in the bottom of the mounting groove (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422131570.6U CN223090075U (en) | 2024-08-31 | 2024-08-31 | Double-flap butt-clamp check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422131570.6U CN223090075U (en) | 2024-08-31 | 2024-08-31 | Double-flap butt-clamp check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223090075U true CN223090075U (en) | 2025-07-11 |
Family
ID=96286613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422131570.6U Active CN223090075U (en) | 2024-08-31 | 2024-08-31 | Double-flap butt-clamp check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223090075U (en) |
-
2024
- 2024-08-31 CN CN202422131570.6U patent/CN223090075U/en active Active
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| GR01 | Patent grant |