CN204573153U - A kind of gate valve - Google Patents
A kind of gate valve Download PDFInfo
- Publication number
- CN204573153U CN204573153U CN201520230944.8U CN201520230944U CN204573153U CN 204573153 U CN204573153 U CN 204573153U CN 201520230944 U CN201520230944 U CN 201520230944U CN 204573153 U CN204573153 U CN 204573153U
- Authority
- CN
- China
- Prior art keywords
- flashboard
- valve
- wedge shape
- wedge
- plunger tip
- 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.)
- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model discloses a kind of gate valve, comprise valve body, valve rod, flashboard, valve seat and valve gap, valve body and valve gap match, valve rod stretches in the inner chamber of valve body from top to bottom, the lower end of valve rod with between flashboard for T-slot is connected, valve rod moves up and down and drives flashboard to move up and down, and carries out opening and closing operation to valve; Valve seat is arranged in valve body, and matches in flashboard; Flashboard is wedge-shaped structure wide at the top and narrow at the bottom, it is made up of left wedge shape flashboard and right wedge shape flashboard, left and right wedge shape flashboard is connected together, the side that left wedge shape flashboard and right wedge shape flashboard are arranged in opposite directions is arranged with wedge slot, two wedge slots are combined to form wedge shape mounting groove, be provided with movable plunger tip in wedge shape mounting groove, the utility model is transmitted the active force of flashboard to improve the sealing force of flashboard by plunger tip; The utility model good airproof performance, long service life, easy to replace and maintain.
Description
Technical field
The utility model relates to a kind of gate valve structure, particularly a kind of wedge action valve.
Background technique
The open-shut device of gate valve is flashboard, and moving direction and the flow direction of flashboard are perpendicular, and gate valve can only make standard-sized sheet and complete shut-down, can not make adjustments and throttling; Two sealing surfaces of flashboard, two sealing surfaces of the most frequently used pattern gate valve form wedge shape, key groove is different with valve parameter, and being generally 5 °, is 2 ° 52 ' when medium temperature is not high; The flashboard of wedge shape flashboard can make an entirety, is called rigidity flashboard; Also can make the flashboard producing micro-deformation, to improve its manufacturability, make up the deviation that sealing surface angle produces in course of working, this flashboard is called Flexible disc; When gate valve is closed, sealing surface can only rely on pressure medium to seal, and namely relies on pressure medium the sealing surface of flashboard to be pressed to the valve seat of opposite side to ensure the sealing of sealing surface, selfsealings that Here it is; Major part gate valve adopts forced seal, namely during valve closing, only relies on external force by force flashboard to be pressed to valve seat, to ensure the sealing of sealing surface.
Shown in Figure 1, the spring 5 that existing gate valve comprises valve seat 1, flashboard 2, flashboard seat 3, valve rod 4 and is arranged in flashboard; Flashboard only relies on die holder seat to locate, and flashboard exists the risk come off; Sealing surface depends on the performance of spring, causes valve life cycle to shorten; Carry out transmitting force by flashboard, the face easy damaged of flashboard and rams contact, must change flashboard after damage, maintenance cost is high.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of good airproof performance, long service life, a kind of gate valve easy to maintenance.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of gate valve, comprise valve body, valve rod, flashboard, valve seat and valve gap, described valve body and valve gap match, valve rod stretches in the inner chamber of valve body from top to bottom, the lower end of described valve rod with between flashboard for T-slot is connected, valve rod moves up and down and drives flashboard to move up and down, and carries out opening and closing operation to valve; Valve seat is arranged in valve body, and matches in flashboard;
Described flashboard is wedge-shaped structure wide at the top and narrow at the bottom, it is made up of left wedge shape flashboard and right wedge shape flashboard, left and right wedge shape flashboard is connected together, the side that described left wedge shape flashboard and right wedge shape flashboard are arranged in opposite directions is arranged with wedge slot, described two wedge slots are combined to form wedge shape mounting groove, be provided with movable plunger tip in described wedge shape mounting groove, described plunger tip is for regulating the stressed size of flashboard and valve base chamber.
In an embodiment of the present utility model, be provided with tapped hole in described wedge slot, the two end part of described movable plunger tip are the external thread structure mated with tapped hole, and the two end part of movable plunger tip respectively screw thread are arranged in the tapped hole of wedge slot.
In an embodiment of the present utility model, two end faces of described movable plunger tip are sphere.
By technique scheme, the beneficial effects of the utility model are:
The left and right wedge shape flashboard of the utility model is interlocked by cooperation, again because wide at the top and narrow at the bottom when it is combined into flashboard, there is not the risk that comes off when therefore installing with valve seat; By being engaged of plunger tip fine setting flashboard and valve seat, avoiding the situation of unbalance stress, improve sealability, and extend life cycle; Carry out the sealing force of Transfer Medium to flashboard by movable plunger tip, Long-Time Service, also not easy damaged, during maintenance, only need change movable plunger tip, greatly reduce maintenance cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is existing gate valve structure schematic diagram;
1, valve seat 2, flashboard 3, flashboard seat 4, valve rod 5, spring
Fig. 2 is the utility model gate valve structure schematic diagram;
Numeral and the corresponding part title represented by letter in figure:
10, valve seat 20, flashboard 21, left wedge shape flashboard 22, right wedge shape flashboard 23, wedge shape mounting groove 30, movable plunger tip 40, valve rod.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Shown in Figure 2, the utility model discloses a kind of gate valve, comprise valve body, valve rod 40, flashboard 20, valve seat 10 and valve gap, valve body and valve gap match, valve rod 40 stretches in the inner chamber of valve body from top to bottom, the lower end of valve rod 40 with between flashboard 20 for T-slot is connected, valve rod moves up and down and drives flashboard 20 to move up and down, thus carries out opening and closing operation to valve; Valve seat is arranged in valve body, and matches in flashboard.
The utility model flashboard 20 is wedge-shaped structure wide at the top and narrow at the bottom, the valve seat 10 coordinated with it be also lower wide on wedge-shaped structure, difficult drop-off when flashboard 20 and valve seat 10 are installed; Flashboard 20 its be made up of left wedge shape flashboard 21 and right wedge shape flashboard 22, left and right wedge shape flashboard is connected together, the side that left wedge shape flashboard 21 and right wedge shape flashboard 22 are arranged in opposite directions is arranged with wedge slot, two wedge slots are combined to form wedge shape mounting groove 23, be provided with movable plunger tip 30 in wedge shape mounting groove 23, movable plunger tip 30 is for regulating the stressed size of flashboard and valve base chamber.
In order to improve stability when movable plunger tip is installed, tapped hole (not marking in figure) is provided with in wedge slot, the two end part of movable plunger tip 30 are the external thread structure mated with tapped hole, and the two end part of movable plunger tip 30 respectively screw thread are arranged in the tapped hole of wedge slot; Moreover two end faces of the movable plunger tip of the utility model are sphere, which reduce the frictional force between movable plunger tip two end part and flashboard, extend the working life of movable plunger tip.
By together with being connected, there is not the risk come off compared to existing flashboard in the utility model left wedge shape flashboard 21 and right wedge shape flashboard 22; By being engaged of plunger tip fine setting flashboard and valve seat, avoiding the situation of unbalance stress, improve sealability, and extend life cycle; Carry out the sealing force of Transfer Medium to flashboard by movable plunger tip, Long-Time Service, also not easy damaged, during maintenance, only need change movable plunger tip, greatly reduce maintenance cost.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a gate valve, comprise valve body, valve rod, flashboard, valve seat and valve gap, it is characterized in that: described valve body and valve gap match, valve rod stretches in the inner chamber of valve body from top to bottom, the lower end of described valve rod with between flashboard for T-slot is connected, valve rod moves up and down and drives flashboard to move up and down, and carries out opening and closing operation to valve; Valve seat is arranged in valve body, and matches in flashboard;
Described flashboard is wedge-shaped structure wide at the top and narrow at the bottom, it is made up of left wedge shape flashboard and right wedge shape flashboard, left and right wedge shape flashboard is connected together, the side that described left wedge shape flashboard and right wedge shape flashboard are arranged in opposite directions is arranged with wedge slot, described two wedge slots are combined to form wedge shape mounting groove, be provided with movable plunger tip in described wedge shape mounting groove, described plunger tip is for regulating the stressed size of flashboard and valve base chamber.
2. gate valve according to claim 1, is characterized in that: be provided with tapped hole in described wedge slot, and the two end part of described movable plunger tip are the external thread structure mated with tapped hole, and the two end part of movable plunger tip respectively screw thread are arranged in the tapped hole of wedge slot.
3. gate valve according to claim 1 and 2, is characterized in that: two end faces of described movable plunger tip are sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230944.8U CN204573153U (en) | 2015-04-16 | 2015-04-16 | A kind of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230944.8U CN204573153U (en) | 2015-04-16 | 2015-04-16 | A kind of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573153U true CN204573153U (en) | 2015-08-19 |
Family
ID=53865794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520230944.8U Expired - Fee Related CN204573153U (en) | 2015-04-16 | 2015-04-16 | A kind of gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832671A (en) * | 2015-04-16 | 2015-08-12 | 上海联科阀门成套设备有限公司 | Gate valve |
-
2015
- 2015-04-16 CN CN201520230944.8U patent/CN204573153U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832671A (en) * | 2015-04-16 | 2015-08-12 | 上海联科阀门成套设备有限公司 | Gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20190416 |