CN204900910U - Novel plug valve - Google Patents
Novel plug valve Download PDFInfo
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- CN204900910U CN204900910U CN201520538600.3U CN201520538600U CN204900910U CN 204900910 U CN204900910 U CN 204900910U CN 201520538600 U CN201520538600 U CN 201520538600U CN 204900910 U CN204900910 U CN 204900910U
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- cock
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Abstract
The utility model discloses a leakproofness well surely is difficult for rusty plug valve. The utility model provides a: a novel plug valve, includes the valve body, the middle part of valve body is provided with the cylindricality cock, the top of cylindricality cock is provided with the cavity, cylindricality cock and cavity zonulae occludens, the cavity outer wall is the rubber material, the inside of cavity is provided with the valve rod with cylindricality plug connection, the valve rod overcoat is equipped with the pushing ram, threaded connection between pushing ram and the valve gap, the valve rod is connected with power unit, the top of cavity is provided with the pump nozzle, be provided with spiral groove on the cavity outer wall, the pump nozzle stretches into in the spiral groove. The utility model discloses a pushing ram get into the cavity make the cavity inflation and with valve body in close contact with, and be provided with spiral groove on the valve body contact, be provided with the finish in the spiral groove and can prevent effectively that the valve body from rustting, prolonged the life of plug valve.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of stopcock.
Background technique
Stopcock is widely used in industry-by-industry, especially all kinds of heavy industry, chemical industry, by 90-degree rotation, the passway on valve plug is communicated with the passway on valve body or separates, and realizes opening or closing.Common stopcock is poor in the joint sealing of valve plug, easily causes the leakage of gas or liquid, cannot meet production and usage requirement.China Patent No. is that the patent of invention of ZL2014108388922 discloses a kind of technological scheme solved the problems of the technologies described above, that is: a kind of stopcock, comprise valve body, described valve body upper, lower two ends are provided with valve gap, the middle part of valve body is provided with cylindricality cock, the top of cylindricality cock is provided with cavity, the outer wall of cavity is quality of rubber materials, the inside of cavity is provided with propelling piston, the upper end of propelling piston is connected with screw, in use, pass through rotary screw, drive propelling piston moves downward, thus can gas in compression chamber, the outer wall of cavity is outwards expanded and with the inwall close contact of valve body to realize the good sealing of stopcock.
But, in actual use, there is many defects in technique scheme, such as, the outer wall of cavity is set to quality of rubber materials, and the frictional force between quality of rubber materials and valve body can be very large, this will cause when needs make piston decline, very large power just must be used just to overcome frictional force between rubber and valve body, in addition, owing to mostly adopting the valve body of metal material, in actual use, sealing place of valve body and valve plug likely can be got rusty, thus causes valve plug to be more not easy to rotate, and technique scheme still cannot address these problems.
Summary of the invention
For the deficiency that prior art exists, main purpose of the present utility model is to provide a kind of good airproof performance and the stopcock not easily got rusty.
For achieving the above object, the utility model provides following technological scheme, a kind of Novel plug valve, comprise valve body, the middle part of described valve body is provided with cylindricality cock, the top of described cylindricality cock is provided with cavity, described cylindricality cock and cavity compact siro spinning technology, described chamber outer wall is quality of rubber materials, the inside of described cavity is provided with the valve rod be connected with cylindricality cock, push rod is arranged with outside described valve rod, described push rod is threaded with between valve gap, described valve rod is connected with power mechanism, the top of described cavity is provided with pump nozzle, described chamber outer wall is provided with helical groove, described pump nozzle stretches in helical groove.
Preferably, described power mechanism is screw rod, hydraulic pressure installation or Electric actuator.
Preferably, described valve body is provided with filler with the joint of cavity.
Preferably, the top of described filler is provided with filler pressing sleeve, and the top of described filler pressing sleeve is provided with hold-down grid, and the below of described filler is provided with Packing seat.
Preferably, the upper and lower of described valve body is provided with valve gap, is provided with seal ring between described valve body and valve gap.
Preferably, the outer wall of described cylindricality cock is provided with lining.
Preferably, the valve gap on described valve body top is provided with limiting stopper.
The utility model has the following advantages relative to prior art tool, a cavity is provided with above cock, the mode be fixedly connected with can be adopted between cavity with cock, so in use, when rotating cock, cavity also can rotate along with cock, and the outer wall of cavity and valve body contact, and when opening stopcock, liquid only may reserve from the contacting point of cavity and valve body, in order to make to keep stronger sealing between cavity and valve body, can cavity be made to expand by the gas in compression chamber, certainly, when mounted, cavity will remain in complete closed state, in the present embodiment, in compression chamber, the method for air is by push rod sheathed on valve rod, certainly, push rod is hollow shape, with reference to Fig. 1, be threaded between push rod with valve body, as long as so push rod can be made to enter cavity, air so in cavity just can be compressed, so cavity just can expand, the outer wall of cavity just can more closely with valve body contact, good airproof performance, can prevent liquid from revealing between valve body and chamber outer wall, in addition, certain finish can be stored in helical groove, make an oiling just can make valve body can by long-term lubrication, favorable rust preventing effect.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of Novel plug valve of the present utility model;
Fig. 2 is the structural representation of the cavity outer wall of a kind of Novel plug valve of the present utility model.
In figure: 1, valve body; 2, valve gap; 3, cylindricality cock; 4, cavity; 5, chamber outer wall; 6, valve rod; 7, push rod; 8, pump nozzle; 9, helical groove; 10, filler; 11, filler pressing sleeve; 12, hold-down grid; 13, Packing seat; 14, seal ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As described in Figure 1, a kind of Novel plug valve, comprise valve body 1, the present embodiment is for two-way cock valve, valve body 1 comprises two passages, the middle part of valve body 1 is provided with cylindricality cock 3, cylindricality cock 3 offers can with the through hole of Liang Ge passage UNICOM, and cavity 4 is provided with above cylindricality cock 3, the bottom compact siro spinning technology of cylindricality cock 3 and cavity 4, cavity 4 outer wall is quality of rubber materials, the inside of cavity 4 is provided with the valve rod 6 be connected with cylindricality cock 3, push rod 7 is arranged with outside valve rod 6, valve rod 6 is connected with power mechanism, the top of cavity 4 is provided with pump nozzle 8, with reference to Fig. 2, cavity 4 outer wall is provided with helical groove 9, in use, pump nozzle 8 to stretch in helical groove 9 and inject finish in helical groove 9.
Wherein, power mechanism is screw rod, hydraulic pressure installation or Electric actuator, these power mechanisms can both realize with valve rod 6 to drive the folding of cylindricality cock 3, the present embodiment illustrates the working principle of this Novel plug valve for screw rod: open stopcock at needs, when making fluid in pipeline by stopcock, as long as by valve rod 6 90-degree rotation, make the Liang Ge passage UNICOM on the through hole of cylindricality cock 3 and valve body 1, liquid can pass through stopcock smoothly, for common stopcock, when stopcock is opened, poor sealing between cylindricality cock 3 and valve body 1, the gap of liquid between cock and valve body 1 can be made, liquid is caused to overflow, even corrosive liquid also can produce valve body 1 itself and corrode, have a strong impact on the working life of valve body 1.And in the present embodiment, a cavity 4 is provided with above cylindricality cock 3, the mode be fixedly connected with can be adopted between cavity 4 with cylindricality cock 3, such as, in the related domains such as the bonding or welding conventional mode that is fixedly connected with, and chamber outer wall 5 adopts quality of rubber materials, so in use, when rotating cylinder cock 3, cavity 4 also can rotate along with cylindricality cock 3, and chamber outer wall 5 contacts with valve body 1, and when opening stopcock, liquid only may reserve from the contacting point of cavity 4 with valve body 1, in order to make to keep stronger sealing between cavity 4 and valve body 1, can cavity 4 be made to expand by the gas in compression chamber 4, certainly, when mounted, cavity 4 will remain in complete closed state, in the present embodiment, in compression chamber 4, the method for air is by push rod 7 sheathed on valve rod 6, certainly, push rod 7 is hollow shape, with reference to Fig. 1, be threaded between push rod 7 with valve body 1, as long as so push rod 7 can be made to enter cavity 4, air so in cavity 4 just can be compressed, so cavity 4 just can expand, the outer wall of cavity 4 just can contact with valve body 1 more closely, good airproof performance, can prevent liquid from revealing between valve body 1 and cavity 4 outer wall.
When stopcock cuts out by needs, sequence of operation is just contrary with above-mentioned unfolding mode, as long as by push rod 7 slightly to upper direction, make cavity 4 not reflation, frictional force so between cavity 4 outer wall and valve body 1 diminishes when just can open relative to stopcock, as long as now cylindricality cock 3 opposite spin 90 degree stopcock can be realized to close.
In order to prevent valve body 1 from getting rusty with the contacting point of cavity 4 outer wall, getting rusty and the frictional force between chamber outer wall 5 and valve body 1 can be made abnormal large, causing when opening and closing stopcock can unusual effort.And rusty stain also can affect the sealing between valve body 1 and chamber outer wall 5, so the improvement project of the present embodiment is as follows, chamber outer wall 5 is provided with helical groove 9, and pump nozzle 8 is set on valve body 1, with reference to Fig. 1, pump nozzle 8 stretches in helical groove 9, certainly, fuel tank can be arranged on outside valve body 1, when stopcock needs maintenance to oil, as long as fuel tank is connected with pump nozzle 8, and by pump nozzle 8 to oiling in helical groove 9, relatively traditional need stopcock to be opened completely and disassembles after maintain, the scheme of the present embodiment is obviously convenient, save time, and with reference to Fig. 2, certain finish can be stored in helical groove 9, make an oiling that valve body 1 meeting just can be made by long-term lubrication, favorable rust preventing effect.
In order to strengthen the sealing between valve body 1 and cavity 4 outer wall further, also on valve body 1, the joint of cavity 4 is provided with filler 10 in the present embodiment, filler 10 is between valve body 1 and chamber outer wall 5, ensure that liquid can not be revealed, with reference to Fig. 1, the top of filler 10 is provided with filler pressing sleeve 11, the top of filler pressing sleeve 11 is provided with hold-down grid 12, the below of filler 10 is provided with Packing seat 13, filler pressing sleeve 11, hold-down grid 12 and Packing seat 13 ensure that the stability of filler 10, make filler 10 can meet long-term use.
The upper and lower of valve body 1 is provided with valve gap 2, valve body 1 and valve gap 2 cooperatively interact, make each component of stopcock obtain good fixing, be provided with seal ring 14 between valve body 1 and valve gap 2, can ensure, between valve body 1 and valve gap 2, there is good sealing.The outer wall of cylindricality cock 3 is provided with lining, and lining can extend the working life of cylindricality cock 3, and when stopcock is used for having corrosive liquid, lining can be reasonable corrosion-resistant, relative to the cock not having lining, has the longer spreadable life.The valve gap 2 on valve body 1 top is provided with limiting stopper (attached not shown in FIG.), when push rod 7 employing is threaded with valve body 1, the setting of limiting stopper just can make the descending stroke of push rod 7 have a restriction, if because fruit does not have limiting stopper, push rod 7 declines always and will occur firmly to contact with cock, and cylindricality cock 3 can be caused time serious to be out of shape and to misplace.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a Novel plug valve, comprise valve body, it is characterized in that: the middle part of described valve body is provided with cylindricality cock, the top of described cylindricality cock is provided with cavity, described cylindricality cock and cavity compact siro spinning technology, described chamber outer wall is quality of rubber materials, the inside of described cavity is provided with the valve rod be connected with cylindricality cock, push rod is arranged with outside described valve rod, described push rod is threaded with between valve gap, described valve rod is connected with power mechanism, the top of described cavity is provided with pump nozzle, described chamber outer wall is provided with helical groove, described pump nozzle stretches in helical groove.
2. a kind of Novel plug valve according to claim 1, is characterized in that: described power mechanism is screw rod, hydraulic pressure installation or Electric actuator.
3. a kind of Novel plug valve according to claim 1 and 2, is characterized in that: described valve body is provided with filler with the joint of cavity.
4. a kind of Novel plug valve according to claim 3, it is characterized in that: the top of described filler is provided with filler pressing sleeve, the top of described filler pressing sleeve is provided with hold-down grid, and the below of described filler is provided with Packing seat.
5. a kind of Novel plug valve according to claim 1, is characterized in that: the upper and lower of described valve body is provided with valve gap, is provided with seal ring between described valve body and valve gap.
6. a kind of Novel plug valve according to claim 1, is characterized in that: the outer wall of described cylindricality cock is provided with lining.
7. a kind of Novel plug valve according to claim 1, is characterized in that: the valve gap on described valve body top is provided with limiting stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538600.3U CN204900910U (en) | 2015-07-23 | 2015-07-23 | Novel plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538600.3U CN204900910U (en) | 2015-07-23 | 2015-07-23 | Novel plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900910U true CN204900910U (en) | 2015-12-23 |
Family
ID=54923087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520538600.3U Active CN204900910U (en) | 2015-07-23 | 2015-07-23 | Novel plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134991A (en) * | 2015-07-23 | 2015-12-09 | 苏州科迪流体控制设备有限公司 | Novel cock valve |
| CN111156329A (en) * | 2020-01-20 | 2020-05-15 | 上海亚奥阀门有限公司 | Forged steel soft seal floating ball valve |
-
2015
- 2015-07-23 CN CN201520538600.3U patent/CN204900910U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134991A (en) * | 2015-07-23 | 2015-12-09 | 苏州科迪流体控制设备有限公司 | Novel cock valve |
| CN111156329A (en) * | 2020-01-20 | 2020-05-15 | 上海亚奥阀门有限公司 | Forged steel soft seal floating ball valve |
| CN111156329B (en) * | 2020-01-20 | 2021-12-21 | 上海亚奥阀门有限公司 | Forged steel soft seal floating ball valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |