CN202402725U - Multifunctional check gate valve - Google Patents
Multifunctional check gate valve Download PDFInfo
- Publication number
- CN202402725U CN202402725U CN201120557128XU CN201120557128U CN202402725U CN 202402725 U CN202402725 U CN 202402725U CN 201120557128X U CN201120557128X U CN 201120557128XU CN 201120557128 U CN201120557128 U CN 201120557128U CN 202402725 U CN202402725 U CN 202402725U
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- runner
- small valve
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Abstract
The utility model relates to a multifunctional check gate valve. The multifunctional check gate valve comprises a conventional gate valve, wherein a check mechanism is arranged in a valve body runner on the outlet end side; the check mechanism comprises two semi-circular valve clacks, a first small valve rod, a second small valve rod, two torsional springs and a baffle; the baffle is arranged in the radial plane of the runner; a through hole in the baffle is covered by the valve clack; the straight line side of the valve clack is hinged with the first small valve rod; the torsional springs are sleeved on the first small valve rod; the two ends of the torsional springs act on the second small valve rod and the back side of the valve clack respectively; and a rubber coating layer is arranged on the surface of the valve clack. The multifunctional check gate valve reduces the length of the structure, the weight of pipelines and fault points. The closing stroke of the valve clack is short and the springs are used for loading, so that a water hammer can be partially relieved. A double-clack swing type structure is adopted, so that the space occupied by the valve clacks in the valve runner can be greatly reduced, the flow resistance is effectively reduced, and the flow quantity of the valve is increased. The pipeline disassembling time during maintenance of a water pump is reduced, and the work efficiency is improved.
Description
Technical field
The utility model relates to mechanical field, relates in particular to gate valve, particularly a kind of multi-functional non-return gate valve.
Background technique
Utilizing water pump to carry in the pipe-line system of liquid, require the pump discharge valve to close during starting mode of pump, the normal back of pump startup operation flows in the pipeline by liquid opening valve, and the electric motor starting electric current that can guarantee to drive pump like this is less, prevents over current of motor.And for the ease of maintenance, import and export two ends at water pump gate valve all is installed, and when termination of pumping, require the pump discharge valve to close rapidly, cutting off liquid flows backwards, so the pump discharge end also is equipped with a non-return gate valve.The gate valve at water pump import and export two ends and the non-return gate valve of outlet end also claim water pump three valves.Bolton between the two deck valve doors of pump discharge end is if unbalance stress is easy to generate leakage; And structure length is long after the two deck valve door additions, Heavy Weight, and purchase cost is high; The fault point is many, and maintenance workload is big, breaks down more arbitrarily all will make the whole system cisco unity malfunction; Use extremely inconvenience, influenced the working efficiency of entire pump pipe-line system.
Summary of the invention
The purpose of the utility model is to provide a kind of multi-functional non-return gate valve, and described this multi-functional non-return gate valve will solve pump outlet in the existing technology and two valves are installed are caused the technical problem that pipeline structure is complicated, weight is big, cost is high, the fault point is many.
This multi-functional non-return gate valve of the utility model comprises valve body, flashboard, valve rod and valve gap, and valve body is provided with outlet end and entrance point; Valve body is provided with runner between described outlet end and entrance point, described runner middle part is provided with the valve lumen, is provided with valve seat in the described valve lumen; Described flashboard is arranged in the described valve seat, and described valve gap is fixedly connected on the upside of valve body, described valve rod longshore current road radially pass valve gap; The lower end of valve rod is connected with the top of flashboard, wherein, exports in the distolateral valve flowing channel and is provided with non-return mechanism; Described non-return mechanism comprises two semicircle flaps, first small valve-rod, second small valve-rod, two torsion springs and a baffle plate, and the diametric(al) in the described first small valve-rod longshore current road is passed runner, and the two ends of first small valve-rod are fixedly connected with valve body; The diametric(al) in the described second small valve-rod longshore current road is passed runner; The two ends of second small valve-rod are fixedly connected with valve body, second small valve-rod and the first small valve-rod parallel interval, and described two semicircle flaps are symmetricly set in the runner; The straight sides of two semicircle flaps is hinged with first small valve-rod respectively; Described two torsion springs all are set on first small valve-rod, and an end of any torsion spring all snaps onto on second small valve-rod, and the other end of any torsion spring all rests in the dorsal part of a semicircle flap separately; Described baffle plate is arranged in the radial plane in the runner; The periphery of baffle plate is fixedly connected with valve body, is provided with through hole in the baffle plate, and two semicircle flaps cover described through hole.
Further, the surface of any described semicircle flap is provided with the encapsulate layer.
Further, first small valve-rod is provided with two back-up rings, and described two back-up rings lay respectively at the two ends of semicircle flap, and first small valve-rod between the back-up ring is provided with two limiting stoppers.
Further, the joint of second small valve-rod and first small valve-rod and valve body is respectively arranged with pad and seal ring, and the two ends of second small valve-rod and first small valve-rod are fastened on the valve body through interior hexagonal plug separately.
Further, the upside of valve gap is fixedly connected with support, is provided with a Stem Mut in the support; Be provided with revolute pair between support and the Stem Mut; The top of valve rod is provided with outside thread, and the outside thread of valve rod and described Stem Mut constitute screw pair, and the upside of described Stem Mut is provided with bearing gland; Described bearing gland is fixedly connected with support, and Stem Mut is fixedly connected with a rotation handwheel.
Further, the lower end of valve rod is connected with the top of flashboard through T type groove and connects, and is provided with revolute pair between valve rod lower end and the flashboard top.
The working principle of the utility model is: valve body, flashboard, valve rod and valve gap constitute gate valve, export two semicircle flaps in the distolateral valve flowing channel, first small valve-rod, second small valve-rod, two torsion springs and a baffle plate and constitute safety check, during starting mode of pump; Rise flashboard; Two semicircle flaps seal the outlet end side runner under the effect of torsion spring, after the pump startup operation was normal, pressure acted on the semicircle flap; Overcome torsion spring, open the outlet end side runner.During termination of pumping, outside pipeline pressure rests on the baffle plate two semicircle flaps, and sealing outlet end side runner cuts off liquid and flows backwards.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model is provided with non-return mechanism in the distolateral runner of gate valve outlet, shortened structure length, has alleviated pipeline weight, has reduced the fault point.Non-return mechanism adopts the bivalve structure, and the shutoff stroke of flap is short, and spring-loaded is arranged, and can alleviate the part water hammer.Owing to adopt the bivalve rotary-open type, can significantly reduce the space that flap takies valve flowing channel, effectively reduce flow resistance, increased the flow of valve.Because the utility model is combined into a valve with the multi-functional non-return gate valve of gate valve and outlet end,, improved working efficiency so when the maintenance water pump, reduced the time of detaching pipelines.
Description of drawings
Fig. 1 is the structural representation of the multi-functional non-return gate valve of the utility model.
Fig. 2 is the I partial enlarged drawing among Fig. 1.
Fig. 3 is the part sectioned view of the A-A direction among Fig. 1.
Embodiment
Embodiment 1:
Like Fig. 1, Fig. 2 and shown in Figure 3, the multi-functional non-return gate valve of the utility model comprises valve body 1, flashboard 2, valve rod 3 and valve gap 7; Valve body 1 is provided with outlet end and entrance point, and valve body 1 is provided with runner between described outlet end and entrance point, and described runner middle part is provided with the valve lumen; Be provided with valve seat in the described valve lumen, described flashboard 2 is arranged in the described valve seat, and described valve gap 7 is fixedly connected on the upside of valve body 1; Described valve rod 3 longshore current roads radially pass valve gap 7, the lower end of valve rod 3 is connected with the top of flashboard 2, wherein; Export in distolateral valve body 1 runner and be provided with non-return mechanism, described non-return mechanism comprises two semicircle flaps 20, one first small valve-rod 23, one second small valve-rod 19, two torsion springs 18 and baffle plates 21, and the diametric(al) in described first small valve-rod 23 longshore current roads is passed runner; The two ends of first small valve-rod 23 are fixedly connected with valve body 1, and the diametric(al) in described second small valve-rod 19 longshore current roads is passed runner, and the two ends of second small valve-rod 19 are fixedly connected with valve body 1; Second small valve-rod 19 and first small valve-rod, 23 parallel interval; Described two semicircle flaps 20 are symmetricly set in the runner, and the straight sides of two semicircle flaps 20 is hinged with first small valve-rod 23 respectively, and described two torsion springs 18 all are set on first small valve-rod 23; One end of any torsion spring 18 all snaps onto on second small valve-rod 19; The other end of any torsion spring 18 all rests in the dorsal part of a semicircle flap 20 separately, and described baffle plate 21 is arranged in the radial plane in the runner, and the periphery of baffle plate 21 is fixedly connected with valve body 1; Be provided with through hole in the baffle plate 21, two semicircle flaps 20 cover described through hole.
Further, the surface of any described semicircle flap 20 is provided with the encapsulate layer.
Further, first small valve-rod 23 is provided with two back-up rings 22, and described two back-up rings 22 lay respectively at the two ends of semicircle flap 20, and first small valve-rod 23 between the back-up ring 22 is provided with two limiting stoppers 17.
Further, the two ends that are respectively arranged with pad 15 and seal ring 16, the second small valve-rods 19 and first small valve-rod 23, the joint of second small valve-rod 19 and first small valve-rod 23 and valve body 1 are fastened on the valve body 1 through interior hexagonal plug 14 separately.
Further, the upside of valve gap 7 is fixedly connected with support 10, is provided with a Stem Mut 11 in the support 10; Be provided with revolute pair between support 10 and the Stem Mut 11; The top of valve rod 3 is provided with outside thread, and the outside thread of valve rod 3 and described Stem Mut 11 constitute screw pair, and the upside of described Stem Mut 11 is provided with bearing gland 12; Described bearing gland 12 is fixedly connected with support 10, and Stem Mut 11 is fixedly connected with a rotation handwheel 13.
Further; Valve body 1 is provided with spirotallic gasket 4 with the place, mating face of valve gap 7, and valve body 1 is fastenedly connected through bolt 5 and nut 6 with valve gap 7, is provided with filler 8 between valve gap 7 and the valve rod 3; Filler 8 upsides are provided with Gland 9, and Gland 9 is fixedly connected with valve gap 7.
Further, the lower end of valve rod 3 is connected with the top of flashboard 2 through T type groove and connects, and is provided with revolute pair between valve rod 3 lower ends and flashboard 2 tops.
The working principle of present embodiment is: valve body 1, flashboard 2, valve rod 3 and valve gap 7 constitute gate valve; Export the semicircle flap of in distolateral valve body 1 runner two 20, one first small valve-rod 23, one second small valve-rod 19, two torsion springs 18 and a baffle plate 21 and constitute safety check; During starting mode of pump, rise 2, two semicircle flaps 20 of flashboard and under the effect of torsion spring 18, seal the outlet end side runner; After the pump startup operation is normal; Pressure acts on the semicircle flap 20, overcomes torsion spring 18, opens the outlet end side runner.During termination of pumping, outside pipeline pressure rests on the baffle plate 21 two semicircle flaps 20, and sealing outlet end side runner cuts off liquid and flows backwards.
Claims (6)
1. a multi-functional non-return gate valve comprises valve body, flashboard, valve rod and valve gap, and valve body is provided with outlet end and entrance point; Valve body is provided with runner between described outlet end and entrance point, described runner middle part is provided with the valve lumen, is provided with valve seat in the described valve lumen; Described flashboard is arranged in the described valve seat, and described valve gap is fixedly connected on the upside of valve body, described valve rod longshore current road radially pass valve gap; The lower end of valve rod is connected with the top of flashboard, it is characterized in that: export in the distolateral valve flowing channel and be provided with non-return mechanism, described non-return mechanism comprises two semicircle flaps, first small valve-rod, second small valve-rod, two torsion springs and a baffle plate; The diametric(al) in the described first small valve-rod longshore current road is passed runner; The two ends of first small valve-rod are fixedly connected with valve body, and the diametric(al) in the described second small valve-rod longshore current road is passed runner, and the two ends of second small valve-rod are fixedly connected with valve body; Second small valve-rod and the first small valve-rod parallel interval; Described two semicircle flaps are symmetricly set in the runner, and the straight sides of two semicircle flaps is hinged with first small valve-rod respectively, and described two torsion springs all are set on first small valve-rod; One end of any torsion spring all snaps onto on second small valve-rod; The other end of any torsion spring all rests in the dorsal part of a semicircle flap separately, and described baffle plate is arranged in the radial plane in the runner, and the periphery of baffle plate is fixedly connected with valve body; Be provided with through hole in the baffle plate, two semicircle flaps cover described through hole.
2. multi-functional non-return gate valve as claimed in claim 1, it is characterized in that: the surface of any described semicircle flap is provided with the encapsulate layer.
3. multi-functional non-return gate valve as claimed in claim 1 is characterized in that: first small valve-rod is provided with two back-up rings, and described two back-up rings lay respectively at the two ends of semicircle flap, and first small valve-rod between the back-up ring is provided with two limiting stoppers.
4. multi-functional non-return gate valve as claimed in claim 1; It is characterized in that: the joint of second small valve-rod and first small valve-rod and valve body is respectively arranged with pad and seal ring, and the two ends of second small valve-rod and first small valve-rod are fastened on the valve body through interior hexagonal plug separately.
5. multi-functional non-return gate valve as claimed in claim 1, it is characterized in that: the upside of valve gap is fixedly connected with support, is provided with a Stem Mut in the support; Be provided with revolute pair between support and the Stem Mut; The top of valve rod is provided with outside thread, and the outside thread of valve rod and described Stem Mut constitute screw pair, and the upside of described Stem Mut is provided with bearing gland; Described bearing gland is fixedly connected with support, and Stem Mut is fixedly connected with a rotation handwheel.
6. multi-functional non-return gate valve as claimed in claim 1 is characterized in that: the lower end of valve rod is connected with the top of flashboard through T type groove and connects, and is provided with revolute pair between valve rod lower end and the flashboard top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120557128XU CN202402725U (en) | 2011-12-27 | 2011-12-27 | Multifunctional check gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120557128XU CN202402725U (en) | 2011-12-27 | 2011-12-27 | Multifunctional check gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402725U true CN202402725U (en) | 2012-08-29 |
Family
ID=46700374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120557128XU Expired - Fee Related CN202402725U (en) | 2011-12-27 | 2011-12-27 | Multifunctional check gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402725U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322256A (en) * | 2013-06-28 | 2013-09-25 | 珠海爱迪生节能科技有限公司 | Anti-shake flow-limiting shutoff valve |
| CN105327790A (en) * | 2015-11-20 | 2016-02-17 | 苏州市金翔钛设备有限公司 | Hydraulic ejector with openable and closable spray nozzle |
| CN110762261A (en) * | 2019-11-28 | 2020-02-07 | 江苏上阀阀业有限公司 | Multifunctional industrial valve |
| CN111569165A (en) * | 2020-05-26 | 2020-08-25 | 上海市嘉定区中心医院(上海健康医学院附属嘉定区中心医院、上海交通大学医学院附属仁济医院嘉定分院) | Negative pressure suction apparatus |
| CN112746976A (en) * | 2019-10-29 | 2021-05-04 | 潘连山 | Backflow-preventing bottom valve of plastic mixed-flow pump |
-
2011
- 2011-12-27 CN CN201120557128XU patent/CN202402725U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322256A (en) * | 2013-06-28 | 2013-09-25 | 珠海爱迪生节能科技有限公司 | Anti-shake flow-limiting shutoff valve |
| CN105327790A (en) * | 2015-11-20 | 2016-02-17 | 苏州市金翔钛设备有限公司 | Hydraulic ejector with openable and closable spray nozzle |
| CN112746976A (en) * | 2019-10-29 | 2021-05-04 | 潘连山 | Backflow-preventing bottom valve of plastic mixed-flow pump |
| CN110762261A (en) * | 2019-11-28 | 2020-02-07 | 江苏上阀阀业有限公司 | Multifunctional industrial valve |
| CN111569165A (en) * | 2020-05-26 | 2020-08-25 | 上海市嘉定区中心医院(上海健康医学院附属嘉定区中心医院、上海交通大学医学院附属仁济医院嘉定分院) | Negative pressure suction apparatus |
| CN111569165B (en) * | 2020-05-26 | 2023-01-17 | 上海市嘉定区中心医院(上海健康医学院附属嘉定区中心医院、上海交通大学医学院附属仁济医院嘉定分院) | Negative pressure suction apparatus |
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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 |
Granted publication date: 20120829 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |