CN211820886U - Swing check valve - Google Patents
Swing check valve Download PDFInfo
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- CN211820886U CN211820886U CN201922495886.2U CN201922495886U CN211820886U CN 211820886 U CN211820886 U CN 211820886U CN 201922495886 U CN201922495886 U CN 201922495886U CN 211820886 U CN211820886 U CN 211820886U
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Abstract
The utility model relates to a swing check valve, which comprises an end cover plate, a valve body, a hinge, a tetrafluoro pin and a valve core; the valve body is provided with a first through hole which is communicated from left to right, the valve body is also provided with a second through hole which is provided with an upward opening and is communicated with the first through hole so as to be used for placing a valve core and rotationally opening and closing the valve core, and the first through hole and the second through hole are communicated to form a valve cavity; the valve core is arranged in the valve body, the valve core is connected with a hinge, the hinge is connected with the tetrafluoro pin and can rotate around the tetrafluoro pin, the tetrafluoro pin is arranged on the valve body, and the valve core is hinged on the valve body through the hinge and the tetrafluoro pin and can rotate left and up or rotate right and down in the valve body to be closed; the end cover plate is detachably arranged at the opening above the valve body. The swing check valve is convenient to disassemble and assemble and convenient to clean and maintain.
Description
Technical Field
The utility model relates to a valve field, in particular to swing check valve.
Background
The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. The check valve of domestic market at present uses cast iron, stainless steel as leading, and the check valve structure that the metal was made is complicated, and weight is heavier, and the dismouting is inconvenient, and the dismouting is difficult during the maintenance, even because the unable maintenance of reason such as long-term use rust death. However, the conventional plastic check valve mainly has a plate structure, and for example, the check valve disclosed in chinese patent document CN107289159A adopts a plate structure, and such a plate check valve also has a problem that it is inconvenient to clean and maintain regularly.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a easy dismounting and be convenient for clear up the swing check valve of maintenance.
The technical scheme for realizing the purpose of the utility model is to provide a swing check valve, which comprises an end cover plate, a valve body, a hinge, a tetrafluoro pin and a valve core; the valve body is provided with a first through hole which is communicated from left to right, the valve body is also provided with a second through hole which is provided with an upward opening and is communicated with the first through hole so as to be used for placing a valve core and rotationally opening and closing the valve core, and the first through hole and the second through hole are communicated to form a valve cavity; the valve core is arranged in the valve body, the valve core is connected with a hinge, the hinge is connected with the tetrafluoro pin and can rotate around the tetrafluoro pin, the tetrafluoro pin is detachably arranged on the valve body, and the valve core is hinged on the valve body through the hinge and the tetrafluoro pin and can be opened in a left-up rotating mode or closed in a right-down rotating mode in the valve body; the end cover plate is detachably arranged at the opening above the valve body.
Furthermore, an upper blocking part and a lower blocking part which are positioned at the upper end and the lower end are respectively arranged at the right part of the first through hole part of the inner end surface of the valve body, which enters the socket, and the upper blocking part and the lower blocking part are protruded leftwards and inclined leftwards and downwards, and the inclined planes are positioned on a straight line, so that the lower blocking part is more protruded leftwards than the upper blocking part;
the swing check valve also comprises a plastic screw, a cover plate and a rubber gasket; the valve core comprises a columnar connecting part, a columnar limiting part connected to the right side of the connecting part and a main core part connected to the right side of the limiting part, wherein external threads are arranged in the left middle of the connecting part, the diameter of the limiting part is larger than that of the connecting part, the main core part is in a shape of an inverted round table gradually increasing from left to right, and the maximum diameter of the right part of the main core part is larger than the distance between the upper blocking part and the lower blocking part; an annular first gasket groove is formed in the outer periphery of the right end face of the main core part; the cover plate is circular and has a diameter smaller than the aperture of the right socket of the valve body; the rubber ring gasket is arranged in an annular first gasket groove on the outer periphery of the right end face of the main core part, the cover plate penetrates through inner screw holes in the cover plate and the right end face of the main core part in a screwing mode through two plastic screws and then is arranged in the center of the right end face of the valve core, and the circumferential inner side of the rubber ring gasket is tightly pressed by the cover part to limit the rubber ring gasket;
the hinge comprises two pin plates and a connecting seat, wherein the pin plates are provided with pin holes in the front and back, the connecting seat is connected to the left lower part of the two pin plates, and the two pin plates are arranged in an arc shape protruding upwards to the left to avoid a main core part of the valve core; the connecting seat comprises a screwing part positioned on the left side and a disc part connected to the right side of the screwing part, the disc part is in a hexagonal nut shape, the inner hole of the disc part is not provided with threads, the inner diameter of the disc part corresponds to the outer diameter of the right part of the connecting part, and the peripheral size of the disc part is larger than that of the screwing part and the limiting part; the rotary-closing part is provided with an internal thread corresponding to the connecting part of the valve core, the connecting seat is sleeved on the connecting part of the valve core, the disk part is positioned at the right part of the connecting part, the rotary-closing part is screwed on the external thread at the left part of the connecting part, and the left end of the connecting part protrudes out of the connecting seat; the tetrafluoro pin is vertically limited on the valve body in the front-back direction, is positioned at the edge position of the right side of the lower part of the second through hole on the valve body and is positioned above the upper blocking part; the tetrafluoro pin passes through a pin hole of a pin plate of the hinge so that the hinge is hinged on the valve body; the valve core is supported on the upper blocking part and the lower blocking part by the outer edge of the right end surface of the main core part and the outer edge of the rubber ring gasket and is blocked by the right side.
Furthermore, the swing check valve also comprises an end cover gasket, a stainless steel bolt and a nut;
the size of the end cover plate corresponds to the upper end opening of the valve body, a second gasket groove is formed in the lower end face of the end cover plate, and a protruding portion which is low at the left side and high at the right side is formed in the middle of the lower end face of the end cover plate; the end cover gasket is arranged in the second gasket groove; the end cover plate covers an opening above the second through hole of the valve body from the top, at least 2 stainless steel bolts penetrate through the end cover plate, the end cover gasket and the upper end part of the valve body in a screwing mode, then corresponding nuts are screwed on the end cover plate, the end cover gasket and the upper end part of the valve body are installed on the valve body, the lower end face of the protruding part of the end cover plate is concentric with the left end face of the connecting part of the valve body, and the center of circle is a tetrafluoro.
The utility model discloses has positive effect: the water sealing valve core of the swing check valve of the utility model is arranged in the valve body, and the rubber gasket arranged on the valve core automatically closes to prevent the fluid from flowing backwards because of falling due to dead weight when the valve core has no water pressure in a pipeline system; the valve core is hinged with the valve body through a hinge and a tetrafluoro pin, fluid can only push the valve core to rotate upwards and open to flow from right to left under the action of water pressure, and the valve core is blocked and positioned by the bulge part at the upper left part; the valve body is provided with the end cover plate, the end cover plate is installed and disassembled through the stainless steel bolt and the nut and is sealed through the end cover gasket, and the valve core and the valve cavity can be cleaned, maintained and maintained after the end cover plate is disassembled, so that the valve is convenient to use.
Drawings
FIG. 1 is a perspective view of a check valve of the present invention;
fig. 2 is a perspective view illustrating the valve element of the swing check valve of fig. 1 when the valve element is opened.
The reference numbers in the above figures are as follows:
the valve comprises an end cover plate 1, a boss 1-1, an end cover gasket 2, a valve body 3, an upper barrier 3-1, a lower barrier 3-2, a hinge 4, a pin plate 4-1, a connecting seat 4-2, a tetrafluoro pin 5, a plastic screw 6, a cover plate 7, a rubber ring gasket 8, a valve core 9, a connecting part 9-1, a limiting part 9-2, a main core part 9-3, a stainless steel bolt 10 and a nut 11.
Detailed Description
(example 1)
Referring to fig. 1, the swing check valve of the present embodiment includes an end cover plate 1, an end cover gasket 2, a valve body 3, a hinge 4, a tetrafluoro pin 5, a plastic screw 6, a cover plate 7, a rubber gasket 8, a valve core 9, a stainless steel bolt 10, and a nut 11. The valve body 3 is provided with a first through hole which is communicated from left to right for fluid to pass through from right to left, the valve body 3 is also provided with a second through hole which is provided with an upward opening and is communicated with the first through hole for placing the valve core 9 and the valve core 9 to rotate to open and close, and the first through hole and the second through hole are communicated to form a valve cavity; an upper blocking part 3-1 and a lower blocking part 3-2 which are positioned at the upper end and the lower end are respectively arranged at the right part of the first through hole part of the inner end surface of the valve body 3, the upper blocking part 3-1 and the lower blocking part 3-2 are protruded leftwards and are inclined leftwards and downwards, and the inclined planes are positioned on a straight line, so that the lower blocking part 3-2 is more protruded leftwards than the upper blocking part 3-1. The valve core 9 comprises a columnar connecting part 9-1, a columnar limiting part 9-2 connected to the right of the connecting part 9-1 and a main core part 9-3 connected to the right of the limiting part 9-2, wherein the left middle part of the connecting part 9-1 is provided with an external thread, the diameter of the limiting part 9-2 is larger than that of the connecting part 9-1, the main core part 9-3 is in a reversed circular truncated cone shape which is gradually enlarged from left to right, and the maximum diameter of the right part of the main core part 9-3 is larger than the distance between the upper blocking part 3-1 and the lower blocking part 3-2 and can be blocked by the upper blocking part 3-1 and the lower blocking part 3-2; an annular first gasket groove is formed in the outer periphery of the right end face of the main core part 9-3. The cover plate 7 is circular and has a diameter smaller than the diameter of the right socket of the valve body 3. The rubber gasket 8 is arranged in an annular first gasket groove on the outer periphery of the right end face of the main core part 9-3, the cover plate 7 is arranged in the center of the right end face of the valve core 9 after penetrating through inner screw holes in the cover plate 7 and the right end face of the main core part 9-3 in a screwing mode through two plastic screws 6, and the cover part 7 compresses the inner periphery of the rubber gasket 8 to limit the rubber gasket 8. The hinge 4 comprises two pin plates 4-1 which are provided with pin holes in the front and back and a connecting seat 4-2 connected to the left lower part of the two pin plates 4-1, and the two pin plates 4-1 are arranged in an arc shape protruding upwards to avoid a main core part 9-3 of the valve core 9; the connecting seat 4-2 comprises a screwing part positioned on the left side and a disc part connected to the right side of the screwing part, the disc part is in a hexagonal nut shape, the inner hole of the disc part is not provided with threads, the inner diameter of the disc part corresponds to the outer diameter of the right part of the connecting part 9-1, and the periphery of the disc part is larger than the screwing part and the limiting part 9-2; the screwing part is provided with an internal thread corresponding to the connecting part 9-1 of the valve core 9, the connecting seat 4-2 is sleeved on the connecting part 9-1 of the valve core 9, the disc part is positioned at the right part of the connecting part 9-1, the screwing part is screwed on the external thread at the left part of the connecting part 9-1, and the left end of the connecting part 9-1 protrudes out of the connecting seat 4-2. The tetrafluoro pin 5 is vertically limited in the front-back direction on the valve body 3, is positioned at the edge position of the right side of the lower part of the second through hole on the valve body 3 and is positioned above the upper blocking part 3-1, and the tetrafluoro pin 5 is limited on the valve body 3 and can be riveted or connected in a threaded mode; the tetrafluoro pin 5 penetrates through a pin hole of a pin plate 4-1 of the hinge 4 to enable the hinge 4 to be hinged on the valve body 3, and the tetrafluoro pin 5 can be limited forwards and backwards in a tongue-and-groove matching mode in which an annular groove is formed in the pin plate 4-1 and an annular tenon is formed in the pin plate 4-1; the valve core 9 is supported on the upper blocking part 3-1 and the lower blocking part 3-2 by the outer edge of the right end surface of the main core part 9-3 and the outer edge of the rubber ring gasket 8 and is blocked by the right. The size of the end cover plate 1 corresponds to the upper end opening of the valve body 3, a second gasket groove is formed in the lower end face of the end cover plate 1, and a protruding portion 1-1 which is located on the left side of the center, low in the left side and high in the right side is formed in the middle of the lower end face of the end cover plate 1. The end cover gasket 2 is arranged in the second gasket groove; the end cover plate 1 covers an opening above the second through hole of the valve body 3 from the top, and is installed on the valve body 3 by screwing at least 2 stainless steel bolts 10 through the end cover plate 1, the end cover gasket 2 and the upper end part of the valve body 3 and then screwing corresponding nuts 11, the lower end surface of the boss 1-1 of the end cover plate 1 and the left end surface of the connecting part 9-1 of the valve body 9 are concentric, and the center of the circle is a tetrafluoro pin 5.
When the swing check valve is used, the valve core 9 for sealing water is arranged in the valve body 3, the rubber gasket 8 is arranged on the valve core 9, and the valve core 9 falls down due to self weight when no water pressure exists in a pipeline system and is automatically closed to prevent fluid from flowing backwards; the valve core 9 is hinged with the valve body 3 through a hinge 4 and a tetrafluoro pin 5, as shown in figure 2, fluid can only push the valve core 9 to rotate upwards and open from right to left under the action of water pressure to flow, and the valve core 9 is blocked and positioned by the bulge part 1-1 at the upper left; install end cover plate 1 on the valve body 3, end cover plate 1 installs, dismantles through stainless steel bolt 10, nut 11, and is sealed through end cover gasket 2, can clear up and maintain convenient to use to case 9 and valve pocket after the dismantlement.
It should be understood that the above examples are only for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the scope of the invention.
Claims (3)
1. A swing check valve characterized in that: the valve comprises an end cover plate, a valve body, a hinge, a PTFE pin and a valve core; the valve body is provided with a first through hole which is communicated from left to right, the valve body is also provided with a second through hole which is provided with an upward opening and is communicated with the first through hole so as to be used for placing a valve core and rotationally opening and closing the valve core, and the first through hole and the second through hole are communicated to form a valve cavity; the valve core is arranged in the valve body, the valve core is connected with a hinge, the hinge is connected with the tetrafluoro pin and can rotate around the tetrafluoro pin, the tetrafluoro pin is detachably arranged on the valve body, and the valve core is hinged on the valve body through the hinge and the tetrafluoro pin and can be opened in a left-up rotating mode or closed in a right-down rotating mode in the valve body; the end cover plate is detachably arranged at the opening above the valve body.
2. A swing check valve as claimed in claim 1, wherein: the right part of the first through hole part on the inner end surface of the valve body is provided with an upper blocking part and a lower blocking part which are positioned at the upper end and the lower end at the position of a socket, and the upper blocking part and the lower blocking part are protruded leftwards and inclined leftwards and downwards and are positioned on a straight line;
the swing check valve also comprises a plastic screw, a cover plate and a rubber gasket; the valve core comprises a columnar connecting part, a columnar limiting part connected to the right side of the connecting part and a main core part connected to the right side of the limiting part, wherein external threads are arranged in the left middle of the connecting part, the diameter of the limiting part is larger than that of the connecting part, the main core part is in a shape of an inverted round table gradually increasing from left to right, and the maximum diameter of the right part of the main core part is larger than the distance between the upper blocking part and the lower blocking part; an annular first gasket groove is formed in the outer periphery of the right end face of the main core part; the cover plate is circular and has a diameter smaller than the aperture of the right socket of the valve body; the rubber ring gasket is arranged in an annular first gasket groove on the outer periphery of the right end face of the main core part, the cover plate penetrates through inner screw holes in the cover plate and the right end face of the main core part in a screwing mode through two plastic screws and then is arranged in the center of the right end face of the valve core, and the circumferential inner side of the rubber ring gasket is tightly pressed by the cover part to limit the rubber ring gasket;
the hinge comprises two pin plates and a connecting seat, wherein the pin plates are provided with pin holes in the front and back, the connecting seat is connected to the left lower part of the two pin plates, and the two pin plates are arranged in an arc shape protruding upwards to the left to avoid a main core part of the valve core; the connecting seat comprises a screwing part positioned on the left side and a disc part connected to the right side of the screwing part, the disc part is in a hexagonal nut shape, the inner hole of the disc part is not provided with threads, the inner diameter of the disc part corresponds to the outer diameter of the right part of the connecting part, and the peripheral size of the disc part is larger than that of the screwing part and the limiting part; the rotary-closing part is provided with an internal thread corresponding to the connecting part of the valve core, the connecting seat is sleeved on the connecting part of the valve core, the disk part is positioned at the right part of the connecting part, the rotary-closing part is screwed on the external thread at the left part of the connecting part, and the left end of the connecting part protrudes out of the connecting seat; the tetrafluoro pin is vertically limited on the valve body in the front-back direction, is positioned at the edge position of the right side of the lower part of the second through hole on the valve body and is positioned above the upper blocking part; the tetrafluoro pin passes through a pin hole of a pin plate of the hinge so that the hinge is hinged on the valve body; the valve core is supported on the upper blocking part and the lower blocking part by the outer edge of the right end surface of the main core part and the outer edge of the rubber ring gasket and is blocked by the right side.
3. A swing check valve as claimed in claim 2, wherein: the swing check valve also comprises an end cover gasket, a stainless steel bolt and a nut;
the size of the end cover plate corresponds to the upper end opening of the valve body, a second gasket groove is formed in the lower end face of the end cover plate, and a protruding portion which is low at the left side and high at the right side is formed in the middle of the lower end face of the end cover plate; the end cover gasket is arranged in the second gasket groove; the end cover plate covers an opening above the second through hole of the valve body from the top, at least 2 stainless steel bolts penetrate through the end cover plate, the end cover gasket and the upper end part of the valve body in a screwing mode, then corresponding nuts are screwed on the end cover plate, the end cover gasket and the upper end part of the valve body are installed on the valve body, the lower end face of the protruding part of the end cover plate is concentric with the left end face of the connecting part of the valve body, and the center of circle is a tetrafluoro.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495886.2U CN211820886U (en) | 2019-12-31 | 2019-12-31 | Swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495886.2U CN211820886U (en) | 2019-12-31 | 2019-12-31 | Swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211820886U true CN211820886U (en) | 2020-10-30 |
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ID=73042170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922495886.2U Active CN211820886U (en) | 2019-12-31 | 2019-12-31 | Swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211820886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357784A (en) * | 2023-06-01 | 2023-06-30 | 海普瑞(常州)洁净系统科技有限公司 | High purity check valve for ultrapure water |
-
2019
- 2019-12-31 CN CN201922495886.2U patent/CN211820886U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357784A (en) * | 2023-06-01 | 2023-06-30 | 海普瑞(常州)洁净系统科技有限公司 | High purity check valve for ultrapure water |
| CN116357784B (en) * | 2023-06-01 | 2023-08-25 | 海普瑞(常州)洁净系统科技有限公司 | High Purity Check Valve for Ultrapure Water |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230120 Address after: No. 6, Wangxian Road, Airport Industrial Park, Xinbei District, Changzhou City, Jiangsu Province, 213136 Patentee after: Haipri (Changzhou) Clean System Technology Co.,Ltd. Address before: 213136 Changzhou Airport Industrial Park, Jiangsu Province Patentee before: HUASHENG PIPELINE TECHNOLOGY CO.,LTD. |