CN208456947U - Built-in shut-off valve total travel adjustable oil cylinder - Google Patents
Built-in shut-off valve total travel adjustable oil cylinder Download PDFInfo
- Publication number
- CN208456947U CN208456947U CN201820895465.1U CN201820895465U CN208456947U CN 208456947 U CN208456947 U CN 208456947U CN 201820895465 U CN201820895465 U CN 201820895465U CN 208456947 U CN208456947 U CN 208456947U
- Authority
- CN
- China
- Prior art keywords
- piston
- piston rod
- screw thread
- cylinder
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000011796 hollow space material Substances 0.000 claims abstract description 7
- 244000273618 Sphenoclea zeylanica Species 0.000 claims abstract description 4
- 230000003139 buffering effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses built-in shut-off valve total travel adjustable oil cylinder, including cylinder body, it include ante-chamber and back cavity in cylinder body, one end top is equipped with oil inlet at the top of cylinder body, it is connected inside oil inlet and ante-chamber, piston is equipped in cylinder body, buffer unit includes the buffer board between the piston other end and cylinder base, buffer spring is equipped between buffer board and cylinder base, top is equipped with oil return opening between buffer unit and piston, piston is connected by link block with piston rod, seal washer is equipped between on the outside of piston rod and cylinder base, piston rod lateral ends are hollow stem, piston rod hollow space inner wall is equipped with internal screw thread and the external screw thread of spare piston bar is adapted, one layer of sealing rubber cover is coated on internal screw thread, sealing rubber cover is close to internal screw thread.Matched by increasing internal screw thread and spare piston bar in piston rod inner, thus it is possible to vary the stroke of piston rod, effect of the sealing rubber cover coated on screw thread in the rotation of spare piston bar as played sealing when piston rod.
Description
Technical field
The utility model relates to a kind of oil cylinder, specifically a kind of built-in shut-off valve total travel adjustable oil cylinder.
Background technique
Existing built-in shut-off valve total travel adjustable oil cylinder includes cylinder body and piston, is that piston is fixed on shut-off valve,
Then operated, but in this process, the stroke of piston and piston rod be it is fixed, can not in the light of actual conditions be adjusted
Section, can bring some convenience, it is therefore desirable to carry out to meet daily production needs in actual production.
Utility model content
To solve the above-mentioned problems, the utility model discloses a kind of built-in shut-off valve total travel adjustable oil cylinders.
The technical solution of the utility model are as follows: built-in shut-off valve total travel adjustable oil cylinder, including cylinder body, before including in cylinder body
Chamber and back cavity, ante-chamber are located at the top of cylinder body, and back cavity is located at cylinder base, and one end top is equipped with oil inlet, oil inlet at the top of cylinder body
It is connected with ante-chamber inside, piston is equipped in cylinder body, forms ante-chamber, the piston other end and cylinder body between piston one end and cylinder body top
Form back cavity between bottom, back cavity bottom is equipped with buffer unit, buffer unit include positioned at the piston other end and cylinder base it
Between buffer board, between buffer board and cylinder base be equipped with buffer spring, between buffer unit and piston top be equipped with oil return opening,
Piston is connected by link block with piston rod, and seal washer, piston rod outside one are equipped between piston rod and cylinder base outside
End is hollow stem, and piston rod hollow space inner wall is equipped with internal screw thread and the external screw thread of spare piston bar is adapted, on internal screw thread
One layer of sealing rubber cover is coated, sealing rubber cover is close to internal screw thread.
Further, buffer board and buffer spring are fixed on cylinder wall.
Further, the diameter of spare piston bar is less than the internal diameter of piston rod hollow space.
The usefulness of the utility model:, can by matching in piston rod inner increase internal screw thread and spare piston bar
To change the stroke of piston rod, the sealing rubber cover coated on screw thread is in the rotation of spare piston bar as played sealing when piston rod
Effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Wherein: 1, cylinder body, 1-1, ante-chamber, 1-2, back cavity, 2, oil inlet, 3, oil outlet, 4, piston, 5, buffer board, 6, slow
Rush spring, 7, link block, 8, piston rod, 9, internal screw thread, 10, sealing rubber cover, 11, spare piston bar, 12, seal washer.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Built-in shut-off valve total travel adjustable oil cylinder, including cylinder body 1, interior cylinder body 1 includes ante-chamber 1-1 and back cavity 1-2, ante-chamber 1-
1 is located at 1 top of cylinder body, and back cavity 1-2 is located at 1 bottom of cylinder body, and 1 top one end top of cylinder body is equipped with oil inlet 2, and oil inlet 2 is with before
It is connected inside chamber 1-1, piston 4 is equipped in cylinder body 1,4 one end of piston and cylinder body forms ante-chamber 1-1 between 1 top, and piston 4 is another
Back cavity 1-2 is formed between end and 1 bottom of cylinder body, the bottom back cavity 1-2 is equipped with buffer unit, and buffer unit includes another positioned at piston 4
Buffer board 5 between 1 bottom of one end and cylinder body, buffer spring 6 is equipped between 1 bottom of buffer board 5 and cylinder body, and buffer board 5 is gentle
It rushes spring 6 to be fixed on cylinder wall, top is equipped with oil return opening 3 between buffer unit and piston 4, and piston 4 is by link block 7 and lives
Stopper rod 8 is connected, and seal washer 12 is equipped between 1 bottom outside of piston rod 8 and cylinder body, 8 lateral ends of piston rod are hollow stem, living
8 hollow space inner wall of stopper rod is equipped with internal screw thread 9 and the external screw thread of spare piston bar 11 is adapted, by increasing in piston rod inner
Internal screw thread and spare piston bar is added to match, thus it is possible to vary the stroke of piston rod coats one layer of sealing rubber cover on internal screw thread 9
10, sealing rubber cover 10 is close to internal screw thread 9, and the sealing rubber cover coated on screw thread is when the rotation of spare piston bar is such as piston rod
The effect of sealing is played, the diameter of spare piston bar 11 is less than the internal diameter of 8 hollow space of piston rod.
Claims (3)
- Shut-off valve total travel adjustable oil cylinder built in 1., it is characterised in that: it include ante-chamber and back cavity in the cylinder body including cylinder body, The ante-chamber is located at the top of cylinder body, and the back cavity is located at cylinder base, and one end top is equipped with oil inlet at the top of the cylinder body, described It is connected inside oil inlet and ante-chamber, piston is equipped in the cylinder body, forms ante-chamber between described piston one end and cylinder body top, institute It states and forms back cavity between the piston other end and cylinder base, the back cavity bottom is equipped with buffer unit, and the buffer unit includes Buffer board between the piston other end and cylinder base is equipped with buffer spring, institute between the buffer board and cylinder base It states top between buffer unit and piston and is equipped with oil return opening, the piston is connected by link block with piston rod, the piston rod Seal washer is equipped between cylinder base outside, the piston rod lateral ends are hollow stem, the piston rod hollow space Inner wall is equipped with internal screw thread and the external screw thread of spare piston bar is adapted, and one layer of sealing rubber cover, institute are coated on the internal screw thread It states sealing rubber cover and is close to internal screw thread.
- 2. built-in shut-off valve total travel adjustable oil cylinder according to claim 1, it is characterised in that: the buffer board and buffering Spring is fixed on cylinder wall.
- 3. built-in shut-off valve total travel adjustable oil cylinder according to claim 1, it is characterised in that: the spare piston bar Diameter is less than the internal diameter of piston rod hollow space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820895465.1U CN208456947U (en) | 2018-06-11 | 2018-06-11 | Built-in shut-off valve total travel adjustable oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820895465.1U CN208456947U (en) | 2018-06-11 | 2018-06-11 | Built-in shut-off valve total travel adjustable oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208456947U true CN208456947U (en) | 2019-02-01 |
Family
ID=65160695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820895465.1U Expired - Fee Related CN208456947U (en) | 2018-06-11 | 2018-06-11 | Built-in shut-off valve total travel adjustable oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208456947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294477A (en) * | 2021-04-21 | 2021-08-24 | 徐州东宏机械制造有限公司 | Air spring with flexible stroke |
-
2018
- 2018-06-11 CN CN201820895465.1U patent/CN208456947U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294477A (en) * | 2021-04-21 | 2021-08-24 | 徐州东宏机械制造有限公司 | Air spring with flexible stroke |
| CN113294477B (en) * | 2021-04-21 | 2024-05-03 | 徐州东宏机械制造有限公司 | Flexible-stroke gas spring |
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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 |
Granted publication date: 20190201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |