CN211901784U - Sealing device of energy-saving double valve - Google Patents
Sealing device of energy-saving double valve Download PDFInfo
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- CN211901784U CN211901784U CN201922319123.2U CN201922319123U CN211901784U CN 211901784 U CN211901784 U CN 211901784U CN 201922319123 U CN201922319123 U CN 201922319123U CN 211901784 U CN211901784 U CN 211901784U
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Abstract
The invention discloses a sealing device of an energy-saving type double valve, which comprises a sealing structure connected to the top of the double valve, wherein a partition plate is connected inside the double valve, a drainage tube is connected between the sealing structure and the partition plate, and the lower end of the drainage tube is welded with the partition plate. The sealing device directly welds the position of the sealing structure required to be connected inside the duplex valve, and moves the sealing structure to the top of the duplex valve, so that the sealing effect is better, meanwhile, the sealing structure is more convenient and faster to replace and maintain, and the influence on the engineering progress is avoided.
Description
Technical Field
The invention relates to the technical field of double valves, in particular to a sealing device of an energy-saving double valve.
Background
At present, the operation of a friction clutch of a pneumatic friction clutch type press is controlled by adopting a double valve at home and abroad, and the double valve is formed by integrating two groups of two-position three-way single type electromagnetic valves which are directly connected in parallel or connected in parallel in a cross mirror image mode through an air inlet, an air outlet and an air outlet. When the coils of the two groups of single-type electromagnetic valves are simultaneously switched on and off, the coils are simultaneously reversed, and the duplex valve normally works as a two-position three-way single-type electromagnetic valve. If one group of main valve cores cannot be normally opened or closed, the internal structure of the double-connection valve enables compressed air entering the double-connection valve to be almost completely exhausted from the exhaust port, and the clutch of the press is disengaged to play a safety protection role, so that the main safety function of the double-connection valve is realized.
The existing double valve is usually provided with a sealing structure on a partition plate, but the partition plate is positioned inside the double valve, so that the sealing structure is inconvenient to replace and maintain, and in the using process, if the sealing structure at the partition plate is damaged, the use of the whole device can be influenced.
SUMMERY OF THE UTILITY MODEL
The invention provides a sealing device of an energy-saving double valve, aiming at the problems in the prior art, the sealing device directly welds the position needing to be connected with a sealing structure in the double valve, and moves the sealing structure to the top of the double valve, so that the sealing effect is better, the sealing structure is more convenient and faster to replace and maintain, and the influence on the engineering progress is avoided.
In order to achieve the purpose, the invention provides a sealing device of an energy-saving type double valve, which comprises a sealing structure connected to the top of the double valve, wherein a partition plate is connected inside the double valve, a drainage tube is connected between the sealing structure and the partition plate, and the lower end of the drainage tube is welded with the partition plate.
The technical principle is as follows: this application is through setting up the drainage tube, only connect seal structure at the top of duplex valve and can realize the sealing function of whole duplex valve, the tradition has been avoided connecting seal structure in the inside of duplex valve, lead to appearing damaging the condition that needs to be changed or maintain and can't change and maintain at seal structure, this application is through setting up the drainage tube, adopt the welded form with the below, can only need connect seal structure in the top of duplex valve can, when needing to be changed or maintain the gland packing, staff's operation is very convenient.
Compare with traditional batcher, the sealing device of pair valve in this application need be changed or when maintaining after long-time the use, and staff's operation is more convenient, and the speed of change and maintenance is faster, has avoided causing the influence to the engineering progress, and this sealing device mounting structure is simple simultaneously, low in manufacturing cost, and sealed effect is fine moreover.
Further, the sealing structure comprises a stuffing box which is connected to the top of the double valve. This application sets up seal structure into the stuffing box, and the low in manufacturing cost of stuffing box is on the one hand, simple to operate, and on the other hand is that the sealed effect of stuffing box installation on this pair valve is fine.
Furthermore, the upper end of a valve rod connected with the interior of the double valve is connected with a sealing gland. This application can move down when needing to seal the dual valve at the valve rod through connecting gland on the valve rod, and gland further covers the upper end of dual valve sealedly, cooperates with the stuffing box of connection at the dual valve top, makes whole sealing device's sealed effect better.
Furthermore, a sealing piece matched with the housing of the double-connection valve is connected to the sealing gland. This application can further improve gland's sealed effect through further connecting the sealing member on gland, and then improves whole device's sealed effect.
Furthermore, the sealing element comprises an annular bulge welded at the lower end of the sealing gland, and a groove matched and sealed with the annular bulge is formed in the housing of the double valve. This application is protruding through connecting the annular at the gland lower extreme to and set up the recess on the double valve shell, through the cooperation of annular arch and recess, can move down at the valve rod and need seal whole double valve when, make the annular arch enter into the recess inside, further improved the sealed effect of whole double valve.
Furthermore, a collision compression structure is connected in the groove. This application is through contradicting compact structure at recess internal connection, can be that the annular bulge makes the annular bulge more inseparable with the recess cooperation through contradicting compact structure when entering into recess inside, has further improved sealed effect.
Furthermore, the abutting compression structure comprises a spring connected inside the groove, and sealing rubber is connected inside the groove covering the spring. This application adopts spring and sealing rubber cooperation to realize compressing tightly the sealed effect that the effect improves the double valve to the bellied conflict of annular because spring and sealing rubber all have certain elasticity, when the annular is protruding to enter into the recess inside, sealing rubber and spring all compress, nevertheless because elastic effect, spring and sealing rubber all can outwards expand, have realized the effect of conflict promptly, and spring and sealing rubber mounting structure are simple simultaneously, the low price.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) the sealing device of the double-valve in the application is required to be replaced or maintained after being used for a long time, the operation of workers is more convenient, the replacing and maintaining speed is higher, the influence on the engineering progress is avoided, and meanwhile, the sealing device is simple in mounting structure, low in manufacturing cost and good in sealing effect.
(2) This application sets up seal structure into the stuffing box, and the low in manufacturing cost of stuffing box is on the one hand, simple to operate, and on the other hand is that the sealed effect of stuffing box installation on this pair valve is fine.
(3) This application can move down when needing to seal the dual valve at the valve rod through connecting gland on the valve rod, and gland further covers the upper end of dual valve sealedly, cooperates with the stuffing box of connection at the dual valve top, makes whole sealing device's sealed effect better.
(4) This application can further improve gland's sealed effect through further connecting the sealing member on gland, and then improves whole device's sealed effect.
(5) This application is protruding through connecting the annular at the gland lower extreme to and set up the recess on the double valve shell, through the cooperation of annular arch and recess, can move down at the valve rod and need seal whole double valve when, make the annular arch enter into the recess inside, further improved the sealed effect of whole double valve.
(6) This application is through contradicting compact structure at recess internal connection, can be that the annular bulge makes the annular bulge more inseparable with the recess cooperation through contradicting compact structure when entering into recess inside, has further improved sealed effect.
(7) This application adopts spring and sealing rubber cooperation to realize compressing tightly the sealed effect that the effect improves the double valve to the bellied conflict of annular because spring and sealing rubber all have certain elasticity, when the annular is protruding to enter into the recess inside, sealing rubber and spring all compress, nevertheless because elastic effect, spring and sealing rubber all can outwards expand, have realized the effect of conflict promptly, and spring and sealing rubber mounting structure are simple simultaneously, the low price.
Drawings
FIG. 1 is a schematic structural diagram of a sealing device of an energy-saving double valve in the invention;
fig. 2 is an enlarged view of a in a schematic structural diagram of a sealing device of an energy-saving double valve in the invention.
Reference numerals: 1-sealing gland, 2-sealing structure, 3-drainage tube, 4-clapboard, 5-groove, 6-annular bulge, 7-sealing rubber, 8-spring.
Detailed Description
All features disclosed in this specification may be combined in any combination, except features and/or steps that are mutually exclusive.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to fig. 1-2 and specific examples.
Example 1
Referring to fig. 1-2, the sealing device of the energy-saving type double valve of the embodiment includes a sealing structure 2 connected to the top of the double valve, a partition plate 4 is connected inside the double valve, a drainage tube 3 is connected between the sealing structure 2 and the partition plate 4, and the lower end of the drainage tube 3 is welded to the partition plate 4.
The technical principle is as follows: this application is through setting up drainage tube 3, only connect seal structure 2 at the top of duplex valve and can realize the sealing function of whole duplex valve, the tradition has been avoided connecting seal structure 2 in the inside of duplex valve, lead to appearing damaging the condition that needs to be changed or maintain and can't change and maintain at seal structure 2, this application is through setting up drainage tube 3, adopt the welded form with the below, can only need connect seal structure 2 in the top of duplex valve can, when needing to be changed or maintain the stuffing box, staff's operation is very convenient.
Compare with traditional batcher, the sealing device of pair valve in this application need be changed or when maintaining after long-time the use, and staff's operation is more convenient, and the speed of change and maintenance is faster, has avoided causing the influence to the engineering progress, and this sealing device mounting structure is simple simultaneously, low in manufacturing cost, and sealed effect is fine moreover.
Example 2
Referring to fig. 1-2, the seal structure 2 of this embodiment includes a stuffing box attached to the top of a double valve, based on embodiment 1.
This application sets up seal structure 2 into the stuffing box, and the low in manufacturing cost of stuffing box is on the one hand, simple to operate, and on the other hand is that the sealed effect of stuffing box installation on this pair valve is fine.
Example 3
Referring to fig. 1 to 2, according to embodiment 1, a gland 1 is connected to an upper end of a stem connected to an inside of a double valve of this embodiment.
This application can move down at the valve rod and need seal the time to the double valve through connecting gland 1 on the valve rod, and gland 1 further covers the upper end of double valve sealedly, cooperates with the gland box of connection at the double valve top, makes whole sealing device's sealed effect better.
Example 4
Referring to fig. 1-2, a seal gland 1 of this embodiment is connected with a seal member that mates with a housing of a duplex valve, based on embodiment 3.
This application can further improve gland 1's sealed effect through further connecting the sealing member on gland 1, and then improves the sealed effect of whole device.
Example 5
Referring to fig. 1-2, according to embodiment 4, the sealing member of this embodiment includes an annular protrusion 6 welded to the lower end of the gland 1, and a groove 5 for sealing with the annular protrusion 6 is provided on the housing of the dual valve.
This application is through connecting annular arch 6 at 1 lower extreme of gland to and set up recess 5 on the double valve shell, through annular arch 6 and recess 5's cooperation, can move down when needing to seal whole double valve at the valve rod, make annular arch 6 enter into inside recess 5, further improved the sealed effect of whole double valve.
Example 6
Referring to fig. 1-2, an interference compression structure is connected in a groove 5 of the embodiment based on the embodiment 5.
This application is through contradicting compact structure at 5 internal connections of recess, can be that annular protrusion 6 is when entering into 5 insides of recess, and it is inseparabler to make annular protrusion 6 and recess 5 cooperation through contradicting compact structure, has further improved sealed effect.
Example 7
Referring to fig. 1-2, according to embodiment 6, the interference compression structure of this embodiment includes a spring 8 connected inside a groove 5, and a sealing rubber 7 connected inside the groove 5 covering the spring 8.
This application adopts spring 8 and 7 cooperations of sealing rubber to realize compressing tightly the sealed effect that the effect improves the double valve to the conflict of annular arch 6, because spring 8 and sealing rubber 7 all have certain elasticity, when annular arch 6 entered into recess 5 inside, sealing rubber 7 and spring 8 all compress, but because elastic effect, spring 8 and sealing rubber 7 all can outwards expand, the effect of contradicting has been realized promptly, spring 8 and sealing rubber 7 mounting structure are simple simultaneously, low price.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (7)
1. The sealing device of the energy-saving double valve is characterized by comprising a sealing structure (2) connected to the top of the double valve, a partition plate (4) is connected to the inside of the double valve, a drainage tube (3) is connected between the sealing structure (2) and the partition plate (4), and the lower end of the drainage tube (3) is welded with the partition plate (4).
2. An energy efficient tandem valve seal arrangement according to claim 1, characterized in that said seal arrangement (2) comprises a stuffing box attached to the top of the tandem valve.
3. The sealing device of the energy-saving double valve according to claim 1, wherein the upper end of the valve rod connected inside the double valve is connected with a sealing gland (1).
4. An energy-saving double valve sealing device according to claim 3, characterized in that a sealing member matched with the double valve shell is connected to the sealing gland (1).
5. The energy-saving type duplex valve sealing device according to claim 4, wherein the sealing member comprises an annular protrusion (6) welded at the lower end of the sealing gland (1), and the duplex valve housing is provided with a groove (5) matched and sealed with the annular protrusion (6).
6. The sealing device of an energy-saving double valve according to claim 5, wherein an interference compression structure is connected in the groove (5).
7. The sealing device of an energy-saving double valve according to claim 6, wherein the interference compression structure comprises a spring (8) connected inside a groove (5), and a sealing rubber (7) is connected inside the groove (5) covering the spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319123.2U CN211901784U (en) | 2019-12-20 | 2019-12-20 | Sealing device of energy-saving double valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319123.2U CN211901784U (en) | 2019-12-20 | 2019-12-20 | Sealing device of energy-saving double valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901784U true CN211901784U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922319123.2U Active CN211901784U (en) | 2019-12-20 | 2019-12-20 | Sealing device of energy-saving double valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901784U (en) |
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2019
- 2019-12-20 CN CN201922319123.2U patent/CN211901784U/en active Active
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