CN208169559U - A kind of hand hydraulic flat gate valve is surged driving cylinder - Google Patents
A kind of hand hydraulic flat gate valve is surged driving cylinder Download PDFInfo
- Publication number
- CN208169559U CN208169559U CN201820273649.4U CN201820273649U CN208169559U CN 208169559 U CN208169559 U CN 208169559U CN 201820273649 U CN201820273649 U CN 201820273649U CN 208169559 U CN208169559 U CN 208169559U
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- cylinder
- fluid
- boss
- circular groove
- cylinder body
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- Expired - Fee Related
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Abstract
It surges driving cylinder the utility model discloses a kind of hand hydraulic flat gate valve, belongs to flat gate valve technical field.Including cylinder body, upper cylinder cover, lower cylinder cap, piston, valve rod and handwheel, boss and ring packing platform are equipped on the inside of the upper cylinder cover, ring packing platform is arranged and joins end to end around the boss, liquid injection hole is additionally provided on the upper cylinder cover, the cylinder body upper end is equipped with fluid-tight circular groove, the cylinder body lower end is equipped with a ring shape sealing station, boss and fluid-tight circular groove are equipped on the inside of the lower cylinder cap, fluid-tight circular groove on lower cylinder cap is arranged in the outside of boss, encloses and join end to end around boss one, and the liquid injection hole being connected to the fluid-tight circular groove on lower cylinder cap is additionally provided on lower cylinder cap.Gasket sealing, the fluid-tight of fluid-tight circular groove and boss are formed between the upper and lower cylinder cap of the utility model and cylinder body and seals three-layer sealed structure, improves the sealing performance of driving cylinder, even if loosened screw, fluid-tight circular groove and ring packing platform still ensure that leakproofness.
Description
Technical field
It surges driving cylinder the utility model relates to a kind of hand hydraulic flat gate valve, belongs to flat gate valve technical field.
Background technique
Hand hydraulic flat gate valve generally comprises upper and lower cylinder cap, cylinder body, valve rod, valve seat, valve plate, piston and handwheel, work
When, the on-off action that valve is completed in valve plate lifting is controlled by valve rod, since its valve inner medium channel is straight-through, medium
The advantages that be in line flowing, has media flow resistance small, and valve plate lifting process is slow, will not generate water hammer.
For existing hand hydraulic flat gate valve driving cylinder in assembling, upper and lower cylinder cap is to be fixed on cylinder body by flange screw
On, and locked upper and lower cylinder cap by bolt, and gasket is added between upper and lower cylinder cap and cylinder body, assembly is complicated, up and down
Between cylinder cap must close alignment, and it is long-term when rear bolt loosen, leakproofness weakens between upper and lower cylinder cap and cylinder body, air,
Impurity etc. makes driving cylinder break down into cylinder interior.
Summary of the invention
The technical problem to be solved by the utility model is to：A kind of hand hydraulic flat gate valve is provided to surge driving cylinder, it
Solve the problems, such as that current flat gate valve driving cylinder leakproofness is poor.
Technical problem to be solved in the utility model takes following technical scheme to realize：
A kind of hand hydraulic flat gate valve is surged driving cylinder, including cylinder body, upper cylinder cover, lower cylinder cap, piston, valve rod and handwheel,
Boss and ring packing platform are equipped on the inside of the upper cylinder cover, ring packing platform is arranged and joins end to end around the boss, institute
It states and is additionally provided with liquid injection hole on upper cylinder cover, the cylinder body upper end is equipped with fluid-tight circular groove, and the cylinder body lower end is equipped with a circle ring packing
Platform, the lower cylinder cap inside are equipped with boss and fluid-tight circular groove, and the fluid-tight circular groove on lower cylinder cap is arranged in the outside of boss, surrounds
Boss one is enclosed and is joined end to end, and the liquid injection hole being connected to the fluid-tight circular groove on lower cylinder cap, the upper cylinder cover are additionally provided on lower cylinder cap
It covers in the cylinder body upper end, the boss of upper cylinder cover is protruded into cylinder body and is bonded with inboard wall of cylinder block, the ring packing platform position on upper cylinder cover
In in fluid-tight circular groove, the lower cylinder cap covers the ring packing platform on the cylinder body lower end, the cylinder body and is located at the lower cylinder cap
Fluid-tight circular groove in, the boss of the lower cylinder cap is protruded into the cylinder body and is bonded with inboard wall of cylinder block, the cylinder body and the upper cylinder half
Gasket is equipped between lid, the lower cylinder cap.
By using above-mentioned technical proposal, upper and lower cylinder cap is covered on cylinder body and by passing through upper cylinder cover after screw locking
On liquid injection hole to the fluid-tight circular groove of cylinder body upper end injection liquid until liquid do not had ring packing platform bottom end formed fluid-tight, pass through
Fluid-tight circular groove injection liquid on the downward cylinder cap of liquid injection hole on lower cylinder cap was not until liquid had ring packing platform bottom end to form liquid
Liquid injection hole is finally blocked and is sealed by envelope, and formation gasket sealing, fluid-tight, three layers of boss sealing are close between upper and lower cylinder cap and cylinder body
Seal structure improves the sealing performance of driving cylinder, even if screw loosens, fluid-tight circular groove and ring packing platform are remained to cylinder body
Inside and outside isolation, avoiding outside air, impurity from entering cylinder interior influences to use.
As preferred embodiment, the boss side surfaces of the upper cylinder cover are set there are two sealing ring.
As preferred embodiment, the boss side surfaces of the lower cylinder cap are set there are two sealing ring.
By using above-mentioned technical proposal, further lift-off seal performance.
As preferred embodiment, the upper cylinder cover is covered on the cylinder body, the ring packing platform on the upper cylinder cover with it is described
It fits on the inside of fluid-tight circular groove on cylinder body.
As preferred embodiment, the lower cylinder cap is covered on the cylinder body, the ring packing platform of the cylinder base with it is described
It fits on the inside of fluid-tight circular groove on lower cylinder cap.
By adopting the above technical scheme by this, it avoids the liquid evaporation in fluid-tight circular groove from entering in cylinder body, leads to leakproofness
Weaken.
The utility model has the beneficial effects that：Gasket sealing, fluid-tight circular groove fluid-tight are formed between upper and lower cylinder cap and cylinder body
And boss seals three-layer sealed structure, improves the sealing performance of driving cylinder；Even if fixed screw loosens, fluid-tight circular groove
It forms fluid-tight with ring packing platform to remain to for cylinder body internal and external environment being isolated, avoiding air, impurity from entering cylinder interior influences to drive
Dynamic cylinder working.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure：Cylinder body 1, upper cylinder cover 2, lower cylinder cap 3, piston 4, valve rod 5, handwheel 6, boss 7, ring packing platform 8, liquid injection hole
9, fluid-tight circular groove 10, gasket 11, sealing ring 12.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness to the utility model are easy to understand, tie below
Conjunction is specifically illustrating, and the utility model is further described.
The driving cylinder as shown in Figure 1, a kind of hand hydraulic flat gate valve is surged, including cylinder body 1, upper cylinder cover 2, lower cylinder cap 3, piston
4, valve rod 5 and handwheel 6 are equipped with boss 7 and ring packing platform 8 on the inside of the upper cylinder cover 2, and ring packing platform 8 is around described convex
Platform 7 is arranged and joins end to end, and liquid injection hole 9 is additionally provided on the upper cylinder cover 2,1 upper end of cylinder body is equipped with fluid-tight circular groove 10, described
1 lower end of cylinder body is equipped with a ring shape sealing station 8, equipped with boss 7 and fluid-tight circular groove 10 on the inside of the lower cylinder cap 3, on lower cylinder cap 3
Fluid-tight circular groove 10 be arranged in boss 7 outside, around boss 7 one enclose and join end to end, be additionally provided on lower cylinder cap 3 and lower cylinder cap
The liquid injection hole 9 that fluid-tight circular groove 10 on 3 is connected to, the upper cylinder cover 2 are covered in 1 upper end of cylinder body, and the boss 7 of upper cylinder cover 2 protrudes into
It is bonded in cylinder body 1 with 1 inner wall of cylinder body, the ring packing platform 8 on upper cylinder cover 2 is located in fluid-tight circular groove 10, and the lower cylinder cap 3 covers
1 lower end of cylinder body, the ring packing platform 8 on the cylinder body 1 are located in the fluid-tight circular groove 10 of the lower cylinder cap 3, the lower cylinder
The boss 7 of lid 3 is protruded into the cylinder body 1 and is bonded with 1 inner wall of cylinder body, the cylinder body 1 and the upper cylinder cover 2, the lower cylinder cap 3 it
Between be equipped with gasket 11.
7 side of boss of the upper cylinder cover 2 is set there are two sealing ring 12.
7 side of boss of the lower cylinder cap 3 is set there are two sealing ring 12.
The upper cylinder cover 2 covers on the cylinder body 1, on the ring packing platform 8 on the upper cylinder cover 2 and the cylinder body 1
It fits on the inside of fluid-tight circular groove 10.
The lower cylinder cap 3 covers on the cylinder body 1, on the ring packing platform 8 of 1 bottom of cylinder body and the lower cylinder cap 3
Fluid-tight circular groove 10 on the inside of fit.
It is fixed by screw between cylinder body 1 and upper cylinder cover 2, lower cylinder cap 3, upper cylinder cover 2 and lower cylinder cap 3 are integral type knot
Structure, without ring flange when assembling.
When the utility model is installed, after upper cylinder cover 2, lower cylinder cap 3 and cylinder body 1 are fixed, pass through the liquid injection hole on upper cylinder cover 2
9, the liquid injection hole 9 on lower cylinder cap 3 injects liquid into fluid-tight circular groove 10 and forms fluid-tight, then again blocks liquid injection hole 9, is promoted and is driven
The sealing performance of dynamic cylinder, avoiding entering due to air and impurity influences driving cylinder working in cylinder body 1.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry it should be appreciated that the present utility model is not limited to the above embodiments, do not depart from the spirit of the present invention and
Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within the utility model and want
In the range of asking protection.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (5)
- The driving cylinder 1. a kind of hand hydraulic flat gate valve is surged, including cylinder body, upper cylinder cover, lower cylinder cap, piston, valve rod and handwheel, It is characterized in that：Boss and ring packing platform are equipped on the inside of the upper cylinder cover, ring packing platform is arranged around the boss and head Tail is connected, and liquid injection hole is additionally provided on the upper cylinder cover, and the cylinder body upper end is equipped with fluid-tight circular groove, and the cylinder body lower end is equipped with a circle Ring packing platform, the lower cylinder cap inside are equipped with boss and fluid-tight circular groove, and boss is arranged in the fluid-tight circular groove on lower cylinder cap Outside is enclosed and joins end to end around boss one, and the liquid injection hole being connected to the fluid-tight circular groove on lower cylinder cap, institute are additionally provided on lower cylinder cap It states upper cylinder cover to cover in the cylinder body upper end, the boss of upper cylinder cover is protruded into cylinder body and is bonded with inboard wall of cylinder block, the annular on upper cylinder cover Sealing station is located in fluid-tight circular groove, and the lower cylinder cap covers the ring packing platform on the cylinder body lower end, the cylinder body and is located at institute State in the fluid-tight circular groove of lower cylinder cap, the boss of the lower cylinder cap is protruded into the cylinder body and is bonded with inboard wall of cylinder block, the cylinder body and Gasket is equipped between the upper cylinder cover, the lower cylinder cap.
- The driving cylinder 2. a kind of hand hydraulic flat gate valve according to claim 1 is surged, it is characterised in that:The upper cylinder cover Boss side surfaces are set there are two sealing ring.
- The driving cylinder 3. a kind of hand hydraulic flat gate valve according to claim 1 is surged, it is characterised in that:The lower cylinder cap Boss side surfaces are set there are two sealing ring.
- The driving cylinder 4. a kind of hand hydraulic flat gate valve according to claim 1 is surged, it is characterised in that:The upper cylinder cover lid On the cylinder body, fit on the inside of the ring packing platform on the upper cylinder cover and the fluid-tight circular groove on the cylinder body.
- The driving cylinder 5. a kind of hand hydraulic flat gate valve according to claim 1 is surged, it is characterised in that:The lower cylinder cap lid On the cylinder body, fit on the inside of the ring packing platform of the cylinder base and the fluid-tight circular groove on the lower cylinder cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273649.4U CN208169559U (en) | 2018-02-27 | 2018-02-27 | A kind of hand hydraulic flat gate valve is surged driving cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273649.4U CN208169559U (en) | 2018-02-27 | 2018-02-27 | A kind of hand hydraulic flat gate valve is surged driving cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169559U true CN208169559U (en) | 2018-11-30 |
Family
ID=64384363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820273649.4U Expired - Fee Related CN208169559U (en) | 2018-02-27 | 2018-02-27 | A kind of hand hydraulic flat gate valve is surged driving cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169559U (en) |
-
2018
- 2018-02-27 CN CN201820273649.4U patent/CN208169559U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 Termination date: 20210227 |