CN213575879U - Valve core of vacuum bellows - Google Patents
Valve core of vacuum bellows Download PDFInfo
- Publication number
- CN213575879U CN213575879U CN202022552641.1U CN202022552641U CN213575879U CN 213575879 U CN213575879 U CN 213575879U CN 202022552641 U CN202022552641 U CN 202022552641U CN 213575879 U CN213575879 U CN 213575879U
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- sealing washer
- base
- lower table
- table wall
- groove
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Abstract
The utility model discloses a vacuum bellows case, including sealing member, base, ripple body, case, valve rod, connecting piece and sealing washer, the vertical cross-section of sealing washer is the T shape setting, the lower table wall of base has the spread groove with sealing washer looks adaptation, the lower table wall of base has the clamp plate that compresses tightly the sealing washer, the lower table wall of clamp plate is equipped with the flange of annular form. The utility model discloses in, the vertical cross-section of sealing washer is the setting of falling T shape, and the lower table wall of base has the spread groove with sealing washer looks adaptation, can fix the clamp plate in the groove under the effect of locking bolt and screw hole, because the lower table wall annular of clamp plate appears the flange, the flange can compress tightly the sealing washer, has realized the fixed to the sealing washer, can effectually avoid the sealing washer to drop from the inside of spread groove, has improved the device's stability.
Description
Technical Field
The utility model relates to a bellows valve core technical field especially relates to a vacuum bellows valve core.
Background
Valves using bellows as the sealing element for the valve stem are often used in applications where tight valve stem sealing is required, such as in high vacuum applications and in the nuclear industry. The corrugated pipe is used to replace stuffing box in common valve or to combine with stuffing box.
The lower surface wall of the base of the corrugated pipe valve core is usually connected with a sealing ring, in the prior art, an annular groove with a dovetail-shaped section is usually arranged on the lower surface wall of the base and is used for being connected with the sealing ring, and the sealing ring is easy to fall off from the annular groove in long-time use, so that the sealing performance of the valve is influenced.
Accordingly, a vacuum bellows valve cartridge is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the valve core of the vacuum bellows is provided in order to solve the problem that the sealing ring is easy to fall off from the annular groove in long-term use and the sealing performance of the valve is affected.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a vacuum bellows case, includes sealing member, base, bellows body, case, valve rod, connecting piece and sealing washer, the vertical cross-section of sealing washer is the T shape setting, the lower table wall of base has the spread groove with sealing washer looks adaptation, the lower table wall of base has the clamp plate that compresses tightly the sealing washer, the lower table wall of clamp plate is equipped with the flange of annular form.
As a further description of the above technical solution:
the lower surface wall of the base is provided with a groove for accommodating the pressing plate.
As a further description of the above technical solution:
and a locking bolt penetrates through the pressure plate, and a threaded hole matched with the locking bolt is formed in the groove wall of the groove.
As a further description of the above technical solution:
the locking bolts are distributed at equal angles around the circle center of the pressing plate.
As a further description of the above technical solution:
the pressing plate is provided with an avoiding groove for placing the locking bolt.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, the vertical cross-section of sealing washer is the setting of falling T shape, and the lower table wall of base has the spread groove with sealing washer looks adaptation, can fix the clamp plate in the groove under the effect of locking bolt and screw hole, because the lower table wall annular of clamp plate appears the flange, the flange can compress tightly the sealing washer, has realized the fixed to the sealing washer, can effectually avoid the sealing washer to drop from the inside of spread groove, has improved the device's stability.
2. The utility model discloses in, the lower table wall of clamp plate has the groove of dodging that places locking bolt, and locking bolt's tip is hidden in the inside of dodging the groove, has avoided the contact of locking bolt with other parts, has avoided locking bolt's wearing and tearing.
Drawings
Fig. 1 shows a schematic structural view of a bellows valve cartridge provided according to an embodiment of the present invention;
fig. 2 shows a schematic diagram of a partial enlarged structure a provided according to an embodiment of the present invention;
fig. 3 shows a schematic top view structure diagram of a baffle according to an embodiment of the present invention.
Illustration of the drawings:
1. a seal member; 2. a valve stem; 3. a connecting member; 4. a corrugated pipe body; 5. pressing a plate; 6. a valve core; 7. a seal ring; 8. a base; 9. connecting grooves; 10. a threaded hole; 11. a groove; 12. locking the bolt; 13. avoiding the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a vacuum bellows case, includes sealing member 1, base 8, bellows body 4, case 6, valve rod 2, connecting piece 3 and sealing washer 7, and the vertical cross-section of sealing washer 7 is the T shape setting, and the lower table wall of base 8 has the spread groove 9 with sealing washer 7 looks adaptation, and the lower table wall of base 8 has the clamp plate 5 that compresses tightly sealing washer 7, and the lower table wall of clamp plate 5 is equipped with the flange of annular form, and clamp plate 5 and flange be the integrated into one piece structure.
Specifically, as shown in fig. 1 and 2, the lower surface wall of the base 8 has a groove 11 for accommodating the pressure plate 5, and when the pressure plate 5 is fixed inside the groove 11, the lower surface wall of the pressure plate 5 and the lower surface wall of the base 8 are located at the same horizontal line.
Specifically, as shown in fig. 1 and 2, a locking bolt 12 penetrates through the pressure plate 5, a threaded hole 10 matched with the locking bolt 12 is formed in the groove wall of the groove 11, the pressure plate 5 can be fixed under the action of the locking bolt 12 and the threaded hole 10, the locking bolt 12 is distributed around the center of the pressure plate 5 at equal angles, the pressure plate 5 is stressed uniformly, and the flange at the bottom end of the pressure plate 5 can compress the sealing ring 7 more uniformly.
Specifically, as shown in fig. 2, the pressure plate 5 has an avoiding groove 13 for placing the locking bolt 12, and after the locking bolt 12 is connected to the threaded hole 10, the bottom end of the locking bolt 12 is hidden inside the avoiding groove 13, so as to avoid the locking bolt 12 from contacting other components.
The working principle is as follows: during the use, when connecting sealing washer 7, with sealing washer 7 and spread groove 9 looks block, place clamp plate 5 in recess 11 department, rotate locking bolt 12 for locking bolt 12 closes with screw hole 10 mutually soon, has realized the fixed to clamp plate 5, and the flange of clamp plate 5 bottom can compress tightly sealing washer 7, can avoid sealing washer 7 to deviate from the inside of spread groove 9, has improved the device's stability.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a vacuum bellows case, includes sealing member (1), base (8), bellows body (4), case (6), valve rod (2), connecting piece (3) and sealing washer (7), its characterized in that, the vertical section of sealing washer (7) is the setting of T shape, the lower table wall of base (8) has spread groove (9) with sealing washer (7) looks adaptation, the lower table wall of base (8) has clamp plate (5) that compresses tightly sealing washer (7), the lower table wall of clamp plate (5) is equipped with the flange of annular form.
2. A vacuum bellows valve cartridge according to claim 1, characterized in that the lower surface wall of the base (8) has a recess (11) for receiving the pressure plate (5).
3. A vacuum bellows valve cartridge according to claim 2, characterized in that the pressure plate (5) has a locking bolt (12) extending therethrough, and the groove wall of the groove (11) has a threaded hole (10) adapted to the locking bolt (12).
4. A vacuum bellows valve cartridge according to claim 3, characterized in that the locking bolts (12) are equiangularly distributed around the centre of the pressure plate (5).
5. A vacuum bellows valve cartridge according to claim 3, characterized in that the pressure plate (5) is provided with an escape groove (13) for the positioning of the locking bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022552641.1U CN213575879U (en) | 2020-11-07 | 2020-11-07 | Valve core of vacuum bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022552641.1U CN213575879U (en) | 2020-11-07 | 2020-11-07 | Valve core of vacuum bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213575879U true CN213575879U (en) | 2021-06-29 |
Family
ID=76534971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022552641.1U Active CN213575879U (en) | 2020-11-07 | 2020-11-07 | Valve core of vacuum bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213575879U (en) |
-
2020
- 2020-11-07 CN CN202022552641.1U patent/CN213575879U/en active Active
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