CN111022680B - Soft sealing gate valve - Google Patents
Soft sealing gate valve Download PDFInfo
- Publication number
- CN111022680B CN111022680B CN201911409043.4A CN201911409043A CN111022680B CN 111022680 B CN111022680 B CN 111022680B CN 201911409043 A CN201911409043 A CN 201911409043A CN 111022680 B CN111022680 B CN 111022680B
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- Prior art keywords
- valve
- rubber pad
- sealing
- valve plate
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 244000309464 bull Species 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0272—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor permitting easy assembly or disassembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a soft sealing gate valve which comprises a valve casing, wherein a valve plate is arranged in the valve casing, the top of the valve plate is connected with a sealing plug, a third rubber pad and a second rubber pad are sequentially embedded in the outer wall of the sealing plug from bottom to top, a sealing ring is arranged on the inner side of the valve casing, and a first rubber pad is wrapped on the outer wall of the sealing ring. According to the soft sealing gate valve, the sealing plug is mounted at the top of the valve plate, the valve rod is mounted at the top of the sealing plug, the sealing ring abuts against the third rubber pad on the outer wall of the sealing plug and is clamped in the groove of the third rubber pad in the downward movement process of the valve plate, when the third rubber pad is damaged, the valve plate can continuously slide downwards, the sealing ring abuts against the second rubber pad and is clamped in the groove of the second rubber pad, and therefore the sealing stability of the soft sealing gate valve is achieved, and the service life of the soft sealing gate valve is prolonged.
Description
Technical Field
The invention relates to the technical field of soft seal gate valves, in particular to a soft seal gate valve.
Background
The soft sealing gate valve, industrial valve, the opening and closing part of the soft sealing gate valve is a flashboard, the movement direction of the flashboard is vertical to the fluid direction, the gate valve can only be fully opened and fully closed, and can not be adjusted and throttled.
Firstly, the valve plate and the valve cavity are frequently in sliding contact friction, the abrasion of the valve plate is increased, a gap is formed between the valve plate and the valve cavity, and the sealing performance of the soft seal gate valve is affected; secondly, most of the gate valves are of an assembled structure, the operation of the assembling process is complex, and the valve plate is inconvenient to assemble, disassemble, maintain and manage; finally, the soft seal gate valve is mostly opened and closed through the valve cap rotation, the valve rod is used for a long time, weak loose and smooth occurs, the gate valve can be reversed, the valve plate is movable, the sealing inside the gate valve is affected, and the service life of the gate valve is shortened.
Disclosure of Invention
The invention aims to solve the problems of the soft seal gate valve and provides the soft seal gate valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
soft sealing gate valve, including the valve casing, the inside of valve casing is provided with the valve plate, the top of valve plate is connected with the sealing plug, the outer wall of sealing plug is equipped with third rubber pad and second rubber pad by supreme inlaying in proper order down, the inboard of valve casing is provided with the sealing washer, the outer wall package of sealing washer is equipped with first rubber pad, the perpendicular cross-section of sealing plug is the trapezium structure that falls, the sealing plug passes through sealed bearing and is connected with the valve plate rotation, the inboard of valve casing, the terminal surface is provided with limit baffle around being located the valve plate, the slide rail is installed to the side end face of valve plate, the inboard of valve casing, the side end face that is located the sealing plug is provided with the draw runner with slide rail sliding connection, the valve rod is installed at the top of valve casing, the valve rod is connected through screw thread convolution with the inboard of valve casing.
As a further description of the above technical solution:
the top of valve rod is installed and is revolved the cap, the side end face of revolving the cap is rotated through the round pin axle and is connected with the bull stick, be connected with inserted bar and lower inserted bar on the bull stick respectively.
As a further description of the above technical solution:
the outer wall of the valve shell is provided with an upper slot and a lower slot.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the soft sealing gate valve, the sealing plug is mounted at the top of the valve plate, the valve rod is mounted at the top of the sealing plug, the sealing ring abuts against the third rubber pad on the outer wall of the sealing plug and is clamped in the groove of the third rubber pad in the downward movement process of the valve plate, when the third rubber pad is damaged, the valve plate can continuously slide downwards, the sealing ring abuts against the second rubber pad and is clamped in the groove of the second rubber pad, and therefore the sealing stability of the soft sealing gate valve is achieved, and the service life of the soft sealing gate valve is prolonged.
2. According to the soft seal gate valve, the valve rod is connected with the valve shell in a screwing mode through the threads, and the outer diameter of the valve plate is smaller than the inner diameter of the valve shell at the position of the valve rod, so that the valve plate, the sealing plug and the valve rod can slide out of the valve shell in a screwing mode through the threads, maintenance and replacement of the soft seal gate valve are achieved, the soft seal gate valve is simple and convenient to assemble and disassemble, and the usability of the soft seal gate valve is improved.
3. According to the valve cap, the rotating rod is rotatably connected to the top of the valve cap through the pin shaft, when the rotating rod rotates to be horizontal, the valve rod can rotate conveniently, when the rotating rod rotates to be vertical, the inserting rod is clamped with the inserting groove, the valve rod is prevented from rotating reversely, and the stability of the valve plate in two states of closing and opening is guaranteed.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a partial front view of a valve plate according to the present invention;
FIG. 3 is a view showing an open state of a valve plate according to the present invention.
Illustration of the drawings:
1. a valve housing; 2. screwing the cap; 3. a rotating rod; 4. a valve plate; 5. a slide rail; 6. a slide bar; 7. a seal ring; 8. a first rubber pad; 9. a sealing plug; 10. a second rubber pad; 11. a third rubber pad; 12. a valve stem; 13. an upper insertion rod; 14. a lower inserted link; 15. an upper slot; 16. a lower slot; 17. and a limiting baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-3, the soft seal gate valve comprises a valve casing 1, an inner cavity of the valve casing 1 is of a T-shaped structure, a valve plate 4 is arranged inside the valve casing 1, the valve plate 4 is located at a joint of a horizontal end and a vertical end of the valve casing 1 in a closed state, a moving direction of the valve plate 4 is a vertical direction of the valve casing 1, a sealing plug 9 is connected to the top of the valve plate 4, a third rubber pad 11 and a second rubber pad 10 are sequentially embedded in an outer wall of the sealing plug 9 from bottom to top, a sealing ring 7 is arranged inside the valve casing 1, an inner diameter of the sealing ring 7 is equal to an outer diameter of a lower end face of the sealing plug 9, a first rubber pad 8 is wrapped on an outer wall of the sealing plug 7, a vertical cross section of the sealing plug 9 is of an inverted trapezoid structure, the sealing ring 9 is rotatably connected with the valve plate 4 through a sealing bearing, an outer diameter of the valve plate 4 is smaller than an inner diameter of the sealing ring 7, limit baffles 17 are arranged on front and back end faces of the valve casing 1, the limit baffle 17 is located the vertical end of valve casing 1 inboard, and slide rail 5 is installed to the side end face of valve plate 4, and slide rail 5 comprises two rectangular, and the inboard of valve casing 1 is located the side end face of valve plate 4 and is provided with the draw runner 6 with slide rail 5 sliding connection.
Referring to fig. 1-3, a valve rod 12 is installed at the top of the sealing plug 9, the valve rod 12 is screwed with the inner side of the valve casing 1 through threads, and has a self-locking function according to the threads, so that the stability of screwing the valve rod 12 up and down is ensured, and the outer diameter of the valve plate 4 is smaller than the inner diameter of the valve casing 1 at the threads, so that the valve plate 4 can slide out of the valve casing 1 along the vertical end of the valve casing 1, and the quick release of the soft sealing gate valve is realized.
Referring to fig. 1 and 3, a screw cap 2 is mounted on the top of a valve rod 12, a rotating rod 3 is rotatably connected to the side end surface of the screw cap 2 through a pin shaft, the pin shaft is in interference fit and transition fit, an upper inserting rod 13 and a lower inserting rod 14 are respectively connected to the rotating rod 3, and an upper slot 15 and a lower slot 16 are formed in the outer wall of a valve housing 1.
Example two:
referring to fig. 1-3, the soft seal gate valve comprises a valve casing 1, an inner cavity of the valve casing 1 is of a T-shaped structure, a valve plate 4 is arranged inside the valve casing 1, the valve plate 4 is located at a joint of a horizontal end and a vertical end of the valve casing 1 in a closed state, a moving direction of the valve plate 4 is a vertical direction of the valve casing 1, a sealing plug 9 is connected to the top of the valve plate 4, a third rubber pad 11 and a second rubber pad 10 are sequentially embedded in an outer wall of the sealing plug 9 from bottom to top, a sealing ring 7 is arranged inside the valve casing 1, an inner diameter of the sealing ring 7 is equal to an outer diameter of a lower end face of the sealing plug 9, a first rubber pad 8 is wrapped on an outer wall of the sealing plug 7, a vertical cross section of the sealing plug 9 is of an inverted trapezoid structure, the sealing ring 9 is rotatably connected with the valve plate 4 through a sealing bearing, an outer diameter of the valve plate 4 is smaller than an inner diameter of the sealing ring 7, limit baffles 17 are arranged on front and back end faces of the valve casing 1, the limit baffle 17 is positioned at the inner side of the vertical end of the valve casing 1, the slide rail 5 is installed on the side end surface of the valve plate 4, the slide rail 5 is composed of two strips, the inner side of the valve casing 1 is provided with a slide bar 6 which is in sliding connection with the slide rail 5 on the side end surface, the valve rod 12 is installed at the top of the sealing plug 9, the valve rod 12 is in screwing connection with the inner side of the valve casing 1 through threads, the outer diameter of the valve plate 4 is smaller than the inner diameter of the valve casing 1 at the thread position, so that the valve plate 4 can slide out of the valve casing 1 along the vertical end of the valve casing 1 to realize the quick disassembly of the soft sealing gate valve, the rotary cap 2 is installed at the top of the valve rod 12, the side end surface of the rotary cap 2 is rotatably connected with the rotary rod 3 through a pin shaft, the pin shaft is in interference fit and transition fit, the upper insert rod 13 and the lower insert rod 14 are respectively connected on the rotary rod 3, the outer wall of the valve casing 1 is provided with an upper slot 15 and a lower slot 16, when the valve plate 4 is in a closed state, the upper insert rod 13 is inserted into the upper slot 15, lower inserted bar 14 pegs graft with lower slot 16, and sealing washer 7 offsets with third rubber pad 11 of sealing plug 9, through changeing bull stick 3 out, through rotatory valve rod 12 for valve plate 4 is opened, when taking valve plate 4 to open completely, lower inserted bar 14 just in time can peg graft with last slot 15, and the test of standard can be according to actual conditions, with the rotatory number of turns of valve rod 12 as the unit, confirms whether valve plate 4 opens completely.
Example three:
referring to fig. 1-3, the soft seal gate valve comprises a valve casing 1, an inner cavity of the valve casing 1 is of a T-shaped structure, a valve plate 4 is arranged inside the valve casing 1, the valve plate 4 is located at a joint of a horizontal end and a vertical end of the valve casing 1 in a closed state, a moving direction of the valve plate 4 is a vertical direction of the valve casing 1, a sealing plug 9 is connected to the top of the valve plate 4, a third rubber pad 11 and a second rubber pad 10 are sequentially embedded in an outer wall of the sealing plug 9 from bottom to top, a sealing ring 7 is arranged inside the valve casing 1, an inner diameter of the sealing ring 7 is equal to an outer diameter of a lower end face of the sealing plug 9, a first rubber pad 8 is wrapped on an outer wall of the sealing plug 7, a vertical cross section of the sealing plug 9 is of an inverted trapezoid structure, the sealing ring 9 is rotatably connected with the valve plate 4 through a sealing bearing, an outer diameter of the valve plate 4 is smaller than an inner diameter of the sealing ring 7, limit baffles 17 are arranged on front and back end faces of the valve casing 1, the limit baffle 17 is positioned at the inner side of the vertical end of the valve casing 1, the slide rail 5 is installed on the side end surface of the valve plate 4, the slide rail 5 is composed of two strips, the inner side of the valve casing 1 is provided with a slide bar 6 which is in sliding connection with the slide rail 5 on the side end surface, the valve rod 12 is installed at the top of the sealing plug 9, the valve rod 12 is in screwing connection with the inner side of the valve casing 1 through threads, the outer diameter of the valve plate 4 is smaller than the inner diameter of the valve casing 1 at the thread position, so that the valve plate 4 can slide out of the valve casing 1 along the vertical end of the valve casing 1 to realize the quick disassembly of the soft sealing gate valve, the rotary cap 2 is installed at the top of the valve rod 12, the side end surface of the rotary cap 2 is rotatably connected with the rotary rod 3 through a pin shaft, the pin shaft is in interference fit and transition fit, the upper insert rod 13 and the lower insert rod 14 are respectively connected on the rotary rod 3, the outer wall of the valve casing 1 is provided with an upper slot 15 and a lower slot 16, when the valve plate 4 is in a closed state, the upper insert rod 13 is inserted into the upper slot 15, lower inserted bar 14 is pegged graft with lower slot 16, and sealing washer 7 offsets with third rubber pad 11 of sealing plug 9, when soft seal gate valve need dismantle the maintenance change, through turning out bull stick 3, through rotatory valve rod 12 for valve plate 4 is opened, and valve rod 12 is screwed out always, breaks away from valve casing 1 until valve plate 4, has realized the quick detach of soft seal gate valve.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A soft sealing gate valve comprises a valve shell (1) and is characterized in that a valve plate (4) is arranged inside the valve shell (1), the top of the valve plate (4) is connected with a sealing plug (9), a third rubber pad (11) and a second rubber pad (10) are sequentially embedded in the outer wall of the sealing plug (9) from bottom to top, a sealing ring (7) is arranged on the inner side of the valve shell (1), a first rubber pad (8) is wrapped on the outer wall of the sealing ring (7), the vertical cross section of the sealing plug (9) is of an inverted trapezoidal structure, the sealing plug (9) is rotatably connected with the valve plate (4) through a sealing bearing, limiting baffles (17) are arranged on the inner side of the valve shell (1) and positioned on the front end face and the rear end face of the valve plate (4), a sliding rail (5) is arranged on the side end face of the valve plate (4), a sliding strip (6) in sliding connection with the sliding rail (5) is arranged on the inner side end face of the valve shell (1), valve rod (12) are installed at the top of sealing plug (9), valve rod (12) are connected through the screw thread closure with the inboard of valve casing (1), and valve plate (4) downstream in-process, and sealing washer (7) offset with third rubber pad (11) of the outer wall of sealing plug (9) to block in the recess of third rubber pad (11), when third rubber pad (11) damaged, can continue gliding valve plate (4), and sealing washer (7) offset with second rubber pad (10), and block in the recess of second rubber pad (10).
2. The soft seal gate valve of claim 1, characterized in that a rotary cap (2) is installed on the top of the valve rod (12), a rotary rod (3) is rotatably connected to the side end surface of the rotary cap (2) through a pin shaft, and an upper inserted rod (13) and a lower inserted rod (14) are respectively connected to the rotary rod (3).
3. The soft seal gate valve according to claim 1, wherein the outer wall of the valve housing (1) is provided with an upper slot (15) and a lower slot (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409043.4A CN111022680B (en) | 2019-12-31 | 2019-12-31 | Soft sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911409043.4A CN111022680B (en) | 2019-12-31 | 2019-12-31 | Soft sealing gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111022680A CN111022680A (en) | 2020-04-17 |
| CN111022680B true CN111022680B (en) | 2022-05-17 |
Family
ID=70197577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911409043.4A Active CN111022680B (en) | 2019-12-31 | 2019-12-31 | Soft sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111022680B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221989A (en) * | 1968-08-08 | 1971-02-10 | Alexander Samuel Volpin | Stem construction for rising stem-gate valve |
| US3912221A (en) * | 1974-06-26 | 1975-10-14 | United States Pipe Foundry | Stem seal and retainer for gate valve |
| CN107461509A (en) * | 2017-10-09 | 2017-12-12 | 铜陵天海流体控制股份有限公司 | A kind of high reliability elastic soft sealing gate valve |
| CN208997373U (en) * | 2018-11-25 | 2019-06-18 | 浙江华龙巨水科技股份有限公司 | A kind of gate valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02129471A (en) * | 1988-11-07 | 1990-05-17 | Kubota Ltd | Stopping structure for slab gate valve |
-
2019
- 2019-12-31 CN CN201911409043.4A patent/CN111022680B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221989A (en) * | 1968-08-08 | 1971-02-10 | Alexander Samuel Volpin | Stem construction for rising stem-gate valve |
| US3912221A (en) * | 1974-06-26 | 1975-10-14 | United States Pipe Foundry | Stem seal and retainer for gate valve |
| CN107461509A (en) * | 2017-10-09 | 2017-12-12 | 铜陵天海流体控制股份有限公司 | A kind of high reliability elastic soft sealing gate valve |
| CN208997373U (en) * | 2018-11-25 | 2019-06-18 | 浙江华龙巨水科技股份有限公司 | A kind of gate valve |
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| Publication number | Publication date |
|---|---|
| CN111022680A (en) | 2020-04-17 |
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