CN204573180U - Pneumatic vacuum membrane valve - Google Patents
Pneumatic vacuum membrane valve Download PDFInfo
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- CN204573180U CN204573180U CN201520180164.7U CN201520180164U CN204573180U CN 204573180 U CN204573180 U CN 204573180U CN 201520180164 U CN201520180164 U CN 201520180164U CN 204573180 U CN204573180 U CN 204573180U
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Abstract
The utility model relates to a kind of valve, disclose a kind of Pneumatic vacuum membrane valve, it comprises valve body (1), valve body (1) upper open end is fixed with the cylinder body (2) communicated with valve body (1) inside, and cylinder body (2) top is connected with valve gap (3); Piston (4) is provided with in cylinder body (2), piston (4) upper part is slidably connected with cylinder body (2) inwall, and piston (4) lower part is connected with the barrier film (6) that can cut off the left opening of valve body (11) and right opening (12) by connecting rod (5); Spring (7) is provided with between piston (4) and valve gap (3).The utility model utilizes degree of vacuum in cylinder body to control vacuum diaphragm valve, fully to realize the Appropriate application of resource, also has the features such as compact structure, component are few, sealing is good simultaneously.
Description
Technical field
The utility model relates to a kind of valve, has particularly related to a kind of Pneumatic vacuum membrane valve.
Background technique
Vacuum diaphragm valve market is usually used in vacuum wastewater and sewage collection system can only rely on malleation to drive or motorized motions, adopts this kind of driving mode to need to set up and extra driving resource within the system, thus can cause the raising of cost of production.
At present, market also have developed the vacuum pipe membrane valve that some utilize vacuum itself to drive, but existing vacuum pipe membrane valve exists problems such as component are more, complex structure, sealing are poor.
Summary of the invention
The problems such as the utility model is more for vacuum diaphragm valve component of the prior art, complex structure, sealing are poor, provide a kind of Pneumatic vacuum membrane valve.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of Pneumatic vacuum membrane valve, comprise valve body, valve body is provided with the left opening all communicated with its inside, right opening and upper shed, and valve body upper open end is fixed with the cylinder body communicated with valve inner, cylinder body top is connected with valve gap, and valve gap is provided with the pore communicated with cylinder interior; Be provided with piston in cylinder body, upper piston area divides and is slidably connected with inboard wall of cylinder block, and piston lower portion divides and is connected with the barrier film that can cut off the left opening of valve body and right opening by connecting rod; Spring is provided with between piston and valve gap.
Vacuum pump is vacuumized in cylinder body by the pore on valve gap, make to form negative pressure in cylinder body, when the negative pressure in cylinder body enough overcomes the elastic force of spring, namely valve can be opened by piston pull-up barrier film, valve body left and right opening is communicated, and namely this piston plays drawing high and extruding left and right barrier film, can be equivalent to again the flap of valve body simultaneously, it is formed in one, and avoids that component in membrane valve are more and the problem such as the assembling that causes difficult, production process is complicated, material deterioration inside is large.
Valve gap is connected by fastening screw with cylinder body.Adopt detachable connection between valve gap with cylinder body, the operations such as the maintenance of component in cylinder body, cleaning can be facilitated, then improve the usability of whole membrane valve.
As preferably, valve gap internal surface is provided with the spring stack extending to cylinder interior, and the upper part of spring is enclosed within spring stack.By spring stack, guide and limit is carried out to spring, spring upper part can be made to depart from vertical position, also can play certain protective role to spring simultaneously, prevent spring to be bent or stretch bending, improve the working life of spring.
As preferably, upper piston area is arranged with guiding groove, and the bottom of spring stack to be inserted in guiding groove and can be slided along guiding groove madial wall; The circular groove for leading to the lower part of spring is provided with outside guiding groove.Circular groove can play spacing leading role to the bottom of spring, whole spring is moved all the time on vertical direction, guiding groove can play a leading role to spring stack, what adopt circular groove and guiding groove ensure that the Impact direction of piston and stressed size with the use of one side, namely ensure that piston is only subject to the power on vertical direction, make piston to be drawn high smoothly or to depress, fully realize the keying of valve body; Also spring and spring stack are played a protective role on the other hand, then improve the working life of whole membrane valve.
As preferably, valve body upper open end is the L shape hangers be configured to through outward flanging, and the outer edge of barrier film is be configured to through repeatedly flange the U-shaped hangers that matches with valve body upper open end L shape hangers.U-shaped hangers and the mutual padlock of L shape hangers are lived, thus make that barrier film outer rim can be stable be connected on valve body, to ensure that barrier film outer rim still can be stablized fixing, substantially increases the sealability of whole valve at piston by the middle part of barrier film during pull-up.
As preferably, upper piston area divides be provided with rubber sleeve between inboard wall of cylinder block, and rubber sleeve can slide along inboard wall of cylinder block.Piston arranges rubber sleeve, cylinder body and piston can be avoided directly to slide on the one hand, avoid the wearing and tearing that sliding friction brings piston, improve the working life of piston; On the other hand rubber sleeve is set between piston and cylinder body, greatly can increases the sealing of cylinder body.
The utility model, owing to have employed above technological scheme, has significant technique effect:
The utility model utilizes degree of vacuum in cylinder body to control vacuum diaphragm valve, without the need to providing extra compressed gas source, to realize the Appropriate application of resource.The utility model adopts special structure simultaneously, makes this membrane valve have the features such as compact structure, component are few, sealing is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of valve body in Fig. 1;
Fig. 3 is the structural representation of piston in Fig. 1.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-valve body, 2-cylinder body, 3-valve gap, 4-piston, 5-connecting rod, 6-barrier film, 7-spring, 8-rubber sleeve, 9-fastening screw, 11-left opening, 12-right opening, 13-upper shed, 14-L shape hangers, 31-pore, 32-spring stack, 41-guiding groove, 42-circular groove, 61-U-shaped hangers.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
A kind of Pneumatic vacuum membrane valve, as shown in Figure 1, Figure 2 and shown in Fig. 3, comprise valve body 1, valve body 1 be provided with all communicate with its inside left opening 11, right opening 12 and upper shed 13, and left opening 11, right opening 12 and upper shed 13 communicate each other between two, the dead in line of left opening 11 and right opening 12 and all perpendicular to the axis of upper shed 13, valve body 1 upper open end is fixed with the cylinder body 2 communicated with valve body 1 inside, cylinder body 2 top is connected with valve gap 3 by fastening screw 9, and valve gap 3 is provided with the pore 31 communicated with cylinder body 2 inside; Be provided with piston 4 in cylinder body 2, overlap rubber sleeve 8 and be fixed on piston 4 outside piston 4 upper part, rubber sleeve 8 is slidably connected with cylinder body 2 inwall, and namely when rubber sleeve 8 and cylinder body 2 inwall relative sliding, rubber sleeve 8 can drive piston 4 to make corresponding movement.Piston 4 lower part is connected with the barrier film 6 that can cut off the left opening of valve body 1 11 and right opening 12 by connecting rod 5.
Under peacetime state, cylinder body 2 inner chamber is normal atmosphere state, and barrier film 6 is pressed in valve body 1 by spring 7 by piston 4, and for cutting off the left opening of valve body 1 11 and right opening 12, now, vacuum diaphragm valve is in closed condition.During work, bled by vacuum pump by the pore 31 of valve gap 3 upper end, make in negative pressure state in cylinder body 2, when negative pressure reaches certain degree of vacuum, when being enough to the elastic force of the spring 7 overcome between valve gap 3 and piston 4, piston 4 can move upward, and makes rubber sleeve 8 along cylinder body 2 inwall upward sliding.Because piston 4 lower part is connected with a barrier film 6 by connecting rod 5, so under the drive of piston 4, can by barrier film 6 pull-up, thus left opening 11, right opening 12 in valve body 1 be communicated, fluid is passed through.When vacuum pump quits work, be returned to atmospheric pressure state in cylinder body 2, cylinder body 2 inner spring 7 is replied, and piston 4 is moved down, and barrier film 6 cuts off the left opening of valve body 1 11 and right opening 12 again, valve closing.
Valve body 1 inner chamber is realized and cylinder body 2 inner chamber separates by membrane valve, make the piston 4, spring 7, spring stack 32 etc. that are positioned at cylinder body 2 not by the corrosion impact of valve body 1 medium, eliminate packing seal structure, and medium can not be produced leak outside, stop the drawbacks such as " run, drip, leak " of usual valve.Barrier film 6 simultaneously in the present embodiment adopts has flexible diaphragm of rubber, and it has good sealing and minimum closing forces.Because the opening at two ends, valve body left and right is on same level line, so its runner is level and smooth, flow resistance is little, can obtain larger flow.
Spring 7 is provided with between piston 4 and valve gap 3.Valve gap 3 internal surface is provided with the spring stack 32 extending to cylinder body 2 inside, and the upper part of spring 7 is enclosed within spring stack 32.Piston 4 upper part is provided with guiding groove 41, and the bottom of spring stack 32 to be inserted in guiding groove 41 and can be slided along guiding groove 41 madial wall; The circular groove 42 for leading to the lower part of spring 7 is provided with outside guiding groove 41.Wherein spring stack 32 can play a position-limiting action to spring 7, guiding groove 41 and circular groove 42 can play a leading role to spring stack 32 and spring 7 respectively, make spring 7 and spring stack 32 all can not depart from its position by the design of this part, it is made to move on vertical direction all the time, this kind of design ensure that the Impact direction of piston 4 and stressed size on the one hand, namely ensure that piston 4 is only subject to the power on vertical direction, make piston 4 to be drawn high smoothly or to depress, fully realize the keying of valve body; Also certain protective role is played to spring 7 on the other hand, improve the working life of spring 7, then improve the working life of whole membrane valve.
Valve body 1 upper open end is the L shape hangers 14 be configured to through outward flanging, and the outer edge of barrier film 6 is be configured to through 3 flange the U-shaped hangers 61 that matches with valve body 1 upper open end L shape hangers 14.U-shaped hangers 61 and the mutual padlock of L shape hangers 14 firmly, thus make that barrier film 6 outer rim can be stable be connected on valve body 1, to ensure that barrier film 6 outer rim still can be stablized fixing, substantially increases the sealability of whole valve at piston 4 by the middle part of barrier film 6 during pull-up.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (5)
1. a Pneumatic vacuum membrane valve, comprise valve body (1), valve body (1) is provided with the left opening (11) all communicated with its inside, right opening (12) and upper shed (13), it is characterized in that: valve body (1) upper open end is fixed with the cylinder body (2) communicated with valve body (1) inside, cylinder body (2) top is connected with valve gap (3), and valve gap (3) is connected by fastening screw (9) with cylinder body (2); Valve gap (3) is provided with the pore (31) communicated with cylinder body (2) inside; Piston (4) is provided with in cylinder body (2), piston (4) upper part is slidably connected with cylinder body (2) inwall, and piston (4) lower part is connected with the barrier film (6) that can cut off the left opening of valve body (11) and right opening (12) by connecting rod (5); Spring (7) is provided with between piston (4) and valve gap (3).
2. a kind of Pneumatic vacuum membrane valve according to claim 1, it is characterized in that: valve gap (3) internal surface is provided with the spring stack (32) extending to cylinder interior, the upper part of spring (7) is enclosed within spring stack (32).
3. a kind of Pneumatic vacuum membrane valve according to claim 2, it is characterized in that: piston (4) upper part is provided with guiding groove (41), the bottom of spring stack (32) to be inserted in guiding groove (41) and can be slided along guiding groove (41) madial wall; Guiding groove (41) outside is provided with the circular groove (42) for leading to the lower part of spring (7).
4. a kind of Pneumatic vacuum membrane valve according to claim 1, it is characterized in that: valve body (1) upper open end is the L shape hangers (14) be configured to through outward flanging, the outer edge of barrier film (6) is be configured to through repeatedly flange the U-shaped hangers (61) that matches with valve body (1) upper open end L shape hangers (14).
5. a kind of Pneumatic vacuum membrane valve according to claim 1, it is characterized in that: be provided with rubber sleeve (8) between piston (4) upper part and cylinder body (2) inwall, rubber sleeve (8) can slide along cylinder body (2) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180164.7U CN204573180U (en) | 2015-03-27 | 2015-03-27 | Pneumatic vacuum membrane valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180164.7U CN204573180U (en) | 2015-03-27 | 2015-03-27 | Pneumatic vacuum membrane valve |
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| CN204573180U true CN204573180U (en) | 2015-08-19 |
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| CN201520180164.7U Active CN204573180U (en) | 2015-03-27 | 2015-03-27 | Pneumatic vacuum membrane valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776244A (en) * | 2015-03-27 | 2015-07-15 | 浙江源态环保科技服务有限公司 | Vacuum pneumatic diaphragm valve |
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2015
- 2015-03-27 CN CN201520180164.7U patent/CN204573180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776244A (en) * | 2015-03-27 | 2015-07-15 | 浙江源态环保科技服务有限公司 | Vacuum pneumatic diaphragm valve |
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Address after: 311411 Building 2, No. 20, Panlongshan Road, Changkou Town, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Xinzhi carbon and Digital Technology Co.,Ltd. Address before: 311411 room 207, building 1, No. 2, shitashan Road, Shikou Town, Fuyang City, Hangzhou, Zhejiang Province Patentee before: ZHEJIANG YOTAN ENVIRONMENTAL PROTECTION TECHNOLOGY SERVICE CO.,LTD. |