CN212251247U - Hard sealing plug valve capable of being sealed on line - Google Patents
Hard sealing plug valve capable of being sealed on line Download PDFInfo
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- CN212251247U CN212251247U CN202020336877.9U CN202020336877U CN212251247U CN 212251247 U CN212251247 U CN 212251247U CN 202020336877 U CN202020336877 U CN 202020336877U CN 212251247 U CN212251247 U CN 212251247U
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Abstract
The utility model belongs to the technical field of special valve, especially a can online sealing hard seal plug valve, including lower cover, adjusting pad, sealed pad, adjusting block, adjusting ball, cock and valve body, the valve body below is provided with the lower cover, be provided with the adjusting pad above the lower cover, the adjusting pad above is provided with sealed pad, the sealed pad top is provided with the adjusting block above, the adjusting block top is provided with the adjusting ball, the adjusting ball top is provided with the cock, the valve rod is provided with inside the valve body top, the valve rod outside is provided with O type sealing washer, the valve rod top is provided with the notes fat check valve, the valve rod inside is provided with the leak-proof check valve, the valve rod below is provided with lower seal gasket and upper seal gasket; the utility model discloses wholly adopt the forging structure, guarantee holistic intensity, the length of whole plug valve only has 2/3 of ordinary plug valve, saves a large amount of costs, and is simple to handle, can install the arbitrary position in the pipeline with arbitrary direction.
Description
Technical Field
The utility model relates to a special valve field especially relates to a can seal hard seal plug valve on line.
Background
Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems.
The pipeline control system is arranged on an industrial pipe network of industrial departments such as petroleum, chemical industry, electric power, metallurgy, food, medicine, light textile, paper making and the like in China, and particularly when a space device is installed for a short time, the defects of high pressure and large space position of a valve body of a common plug valve are effectively overcome, and the pipeline control is carried out efficiently; the traditional plug valve is not high-pressure resistant and inconvenient to combine, is very inconvenient to disassemble and assemble, has high maintenance cost, is not easy to control, and cannot be repaired and sealed on line.
In order to solve the problems, the application provides a hard sealing plug valve capable of being sealed on line.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a can seal hard sealing plug valve on line wholly adopts the forging structure, guarantees holistic intensity, and the length of whole plug valve only has 2/3 of ordinary plug valve, saves a large amount of costs, and is simple to handle, can install the arbitrary position in the pipeline with arbitrary direction.
(II) technical scheme
In order to solve the problems, the utility model provides a hard sealing plug valve capable of being sealed on line, which comprises a lower cover, an adjusting pad, a sealing pad, an adjusting block, an adjusting ball, a cock and a valve body, wherein the lower cover is arranged below the valve body, the adjusting pad is arranged above the lower cover, the sealing pad is arranged above the adjusting pad, the adjusting block is arranged above the sealing pad, the adjusting ball is arranged above the adjusting block, the cock is arranged above the adjusting ball, a valve rod is arranged inside the valve body, an O-shaped sealing ring is arranged outside the valve rod, a grease injection check valve is arranged at the top end of the valve rod, a leakage-proof check valve is arranged inside the valve rod, and a lower sealing pad and an upper sealing pad are arranged;
the valve body upper end is provided with the filler, the filler top is provided with gland, the valve rod top is provided with the handle cover, handle cover one end muffjoint has the handle.
Preferably, a bolt penetrates through the lower cover and the valve body, and a nut is in threaded connection with the lower side of the bolt.
Preferably, a second bolt penetrates through the valve body and the packing gland.
Preferably, an adjusting bolt penetrates through the lower part of the lower cover, and a tightening nut is in threaded connection with the outer side of the adjusting bolt.
Preferably, the filler is made of reinforced PPL synthetic sealing filler material.
The above technical scheme of the utility model has following profitable technological effect:
1. the lower mounting structure is adopted, so that the valve rod is effectively prevented from being punched out; the adoption of the adjusting structure of the adjusting ball can ensure the long-term reliable sealing of the plug valve; a triple sealing structure is adopted; a double check valve type sealing structure is adopted; the whole plug valve adopts a forging structure, the strength of the whole plug valve is ensured, the length of the whole plug valve is only 2/3 of the common plug valve, a large amount of cost is saved, the installation is simple and convenient, and the plug valve can be installed at any position in a pipeline in any direction, so that safety accidents in use are prevented; the adjusting structure of the adjusting ball is adopted, so that the long-term reliable sealing of the plug valve is better ensured;
2. the protective sealing gasket, the enhanced PPL and the O-shaped sealing ring are combined to form a sealing filler and O-shaped sealing ring triple combined structure, so that the sealing performance of the plug valve under a high-pressure working condition is guaranteed, the sealing is reliable, the service life is long, the fluid resistance is small, the switch is rapid and convenient, and the plug valve can be fully opened or fully closed only by rotating the valve rod 90 degrees, so that the rapid opening and closing are realized; adopt two check valve formula seal structure, the effectual leakage that prevents to go up valve rod department can inject sealed fat into and seal simultaneously when online work.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of a part of the structure of the present invention;
reference numerals:
1. a bolt; 2. a nut; 3. a lower cover; 4. an adjustment pad; 5. a gasket; 6. an adjusting block; 7. adjusting the ball; 8. a cock; 9. a valve body; 10. a lower sealing gasket; 11. an upper sealing gasket; 12. an O-shaped sealing ring; 13. a valve stem; 14. a filler; 15. A bolt; 16. a grease-injection check valve; 17. a leak-proof check valve; 18. a handle cover; 19. a handle; 20. a packing gland; 21. Adjusting the bolt; 22. and (5) tightly assembling the nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-2, the utility model provides a can online sealed hard seal plug valve, including lower cover 3, adjusting pad 4, sealed pad 5, adjusting block 6, adjusting ball 7, cock 8 and valve body 9, the valve body 9 below is provided with lower cover 3, be provided with adjusting pad 4 above lower cover 3, adjusting pad 4 top is provided with sealed pad 5, sealed pad 5 top is provided with adjusting block 6, adjusting block 6 top is provided with adjusting ball 7, adjusting ball 7 top is provided with cock 8, the inside valve rod 13 that is provided with above valve body 9, the valve rod 13 outside is provided with O type sealing washer 12, the top of valve rod 13 is provided with notes fat check valve 16, the inside leak-proof check valve 17 that is provided with of valve rod 13, the below of valve rod 13 is provided with lower seal gasket 10 and upper seal gasket 11;
the upper end of the valve body 9 is provided with a packing 14, a packing gland 20 is arranged above the packing 14, a handle sleeve 18 is arranged above the valve rod 13, and one end of the handle sleeve 18 is connected with a handle 19 in a sleeved mode.
In this embodiment, it should be noted that a bolt 1 is penetratingly connected between the lower cover 3 and the valve body 9, a nut 2 is threadedly connected below the bolt 1, a second bolt 15 is penetratingly connected between the valve body 9 and the packing gland 20, an adjusting bolt 21 is penetratingly connected below the lower cover 3, a tightening nut 22 is threadedly connected to the outer side of the adjusting bolt 21, and the packing 14 is specifically made of a reinforced PPL synthetic sealing packing material.
In the utility model, the lower mounting structure is adopted, so that the valve rod 13 is effectively prevented from being rushed out; the adoption of the adjusting structure of the adjusting ball can ensure the long-term reliable sealing of the plug valve; a triple sealing structure is adopted; a double check valve type sealing structure is adopted; the whole structure of forging is adopted, the whole strength is guaranteed, the length of the whole plug valve is only 2/3 of the common plug valve, a large amount of cost is saved, the installation is simple and convenient, and the plug valve can be installed at any position in a pipeline in any direction. Safety accidents in use are prevented; the adjusting structure of the adjusting ball is adopted, so that the long-term reliable sealing of the plug valve is better ensured; the protective sealing gasket 5+ the enhanced PPL are adopted to synthesize a sealing filler 14+ an O-shaped sealing ring 12 triple combined structure, so that the sealing performance of the plug valve under the high-pressure working condition is ensured. The sealing reliability and the long service life are ensured. The fluid resistance is small, the switch is rapid and convenient, and the full opening or full closing action of the plug valve is completed only by rotating the valve rod by 90 degrees, so that the rapid opening and closing is realized; adopt two check valve formula seal structure, the effectual leakage that prevents above valve rod 13 department, sealed fat of injection seal simultaneously can online during operation.
The utility model discloses a theory of operation and use flow: the valve rod 13 is driven by the handle 19 to rotate the cock 8, so that the opening or closing of a valve flow channel can be realized, and the pipeline is controlled; a lower mounting structure is adopted, so that the valve rod 13 is effectively prevented from being punched out; the adoption of the adjusting structure of the adjusting ball can ensure the long-term reliable sealing of the plug valve; a triple sealing structure is adopted; a double check valve type sealing structure is adopted; the whole structure of forging is adopted, the whole strength is guaranteed, the length of the whole plug valve is only 2/3 of the common plug valve, a large amount of cost is saved, the installation is simple and convenient, and the plug valve can be installed at any position in a pipeline in any direction. Safety accidents in use are prevented; the adjusting structure of the adjusting ball is adopted, so that the long-term reliable sealing of the plug valve is better ensured; the protective sealing gasket 5+ the enhanced PPL are adopted to synthesize a sealing filler 14+ an O-shaped sealing ring 12 triple combined structure, so that the sealing performance of the plug valve under the high-pressure working condition is ensured. The sealing reliability and the long service life are ensured. The fluid resistance is small, the switch is rapid and convenient, and the full opening or full closing action of the plug valve is completed only by rotating the valve rod by 90 degrees, so that the rapid opening and closing is realized; adopt two check valve formula seal structure, the effectual leakage that prevents above valve rod 13 department, sealed fat of injection seal simultaneously can online during operation.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (5)
1. The on-line sealing hard sealing plug valve is characterized by comprising a lower cover (3), an adjusting pad (4), a sealing pad (5), an adjusting block (6), an adjusting ball (7), a plug (8) and a valve body (9), wherein the lower cover (3) is arranged below the valve body (9), the adjusting pad (4) is arranged above the lower cover (3), the sealing pad (5) is arranged above the adjusting pad (4), the adjusting block (6) is arranged above the sealing pad (5), the adjusting ball (7) is arranged above the adjusting block (6), the plug (8) is arranged above the adjusting ball (7), a valve rod (13) is arranged inside the upper part of the valve body (9), an O-shaped sealing ring (12) is arranged outside the valve rod (13), a grease injection check valve (16) is arranged at the top end of the valve rod (13), and a leakage-proof check valve (17) is arranged inside the valve rod (13), a lower sealing gasket (10) and an upper sealing gasket (11) are arranged below the valve rod (13);
the improved valve is characterized in that a packing (14) is arranged at the upper end of the valve body (9), a packing gland (20) is arranged above the packing (14), a handle sleeve (18) is arranged above the valve rod (13), and a handle (19) is connected to one end of the handle sleeve (18) in a sleeved mode.
2. An on-line sealing hard sealing plug valve according to claim 1, characterized in that a bolt (1) is connected between the lower cover (3) and the valve body (9) in a penetrating manner, and a nut (2) is connected below the bolt (1) in a threaded manner.
3. An on-line sealing hard sealing plug valve according to claim 1, characterized in that a second bolt (15) is connected between the valve body (9) and the packing gland (20) in a penetrating way.
4. An on-line sealing hard sealing plug valve according to claim 1, characterized in that an adjusting bolt (21) is connected below the lower cover (3) in a penetrating way, and a clamping nut (22) is connected with the outer side of the adjusting bolt (21) in a threaded way.
5. An on-line sealable hard sealing plug valve according to claim 1 wherein said packing (14) is made of a reinforced PPL synthetic sealing packing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336877.9U CN212251247U (en) | 2020-03-17 | 2020-03-17 | Hard sealing plug valve capable of being sealed on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020336877.9U CN212251247U (en) | 2020-03-17 | 2020-03-17 | Hard sealing plug valve capable of being sealed on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251247U true CN212251247U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020336877.9U Active CN212251247U (en) | 2020-03-17 | 2020-03-17 | Hard sealing plug valve capable of being sealed on line |
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| Country | Link |
|---|---|
| CN (1) | CN212251247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389911A (en) * | 2021-06-17 | 2021-09-14 | 浙江福瑞科流控机械有限公司 | High-pressure full-bore forged steel plug valve and working method thereof |
-
2020
- 2020-03-17 CN CN202020336877.9U patent/CN212251247U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389911A (en) * | 2021-06-17 | 2021-09-14 | 浙江福瑞科流控机械有限公司 | High-pressure full-bore forged steel plug valve and working method thereof |
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