CN220955191U - Spiral hydraulic damper - Google Patents
Spiral hydraulic damper Download PDFInfo
- Publication number
- CN220955191U CN220955191U CN202322652038.4U CN202322652038U CN220955191U CN 220955191 U CN220955191 U CN 220955191U CN 202322652038 U CN202322652038 U CN 202322652038U CN 220955191 U CN220955191 U CN 220955191U
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- CN
- China
- Prior art keywords
- cavity
- rotating shaft
- hole
- shell
- sealing
- 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.)
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Links
- 238000013016 damping Methods 0.000 claims abstract description 40
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 39
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 12
- 230000009471 action Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000007306 turnover Effects 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a spiral hydraulic damper, which solves the problem that the existing washing machine is inconvenient to use due to the fact that a user holds the cover by hand in the closing process. The damping mechanism comprises an overflow needle, a blocking column, a one-way valve, a spiral sliding block and a spring, when the turnover cover is opened upwards in a closed state, the spiral sliding block moves towards the direction of the rotating shaft by the rotation of the shell, under the action of damping hydraulic pressure in a second cavity, the damping liquid in the second cavity impacts the one-way valve through the overflow hole to enable a gap to appear between the one-way valve and the spiral sliding block, and the damping liquid in the second cavity flows into the first cavity; in the closing process, damping fluid in the first cavity flows into the second cavity through the overflow gap, so that under the damping action of the damping fluid, the flip slowly falls down until the flip is completely closed, and therefore hands are not needed in the closing process, and impact sound cannot be emitted.
Description
Technical Field
The utility model relates to a spiral hydraulic damper.
Background
When the flip cover of the current flip cover washing machine is closed, the whole closing process is kept by hand, and if the flip cover is carelessly not kept by hand, the cover falls down to make a loud sound, so that the use is inconvenient.
Disclosure of utility model
The utility model aims to solve the problem that the existing washing machine is inconvenient to use because the turnover cover is held by hands in the closing process.
The technical scheme adopted for solving the technical problems is as follows: the spiral hydraulic damper comprises a shell and a rotating shaft which is rotationally connected with the shell, wherein one side of the shell is provided with a shell cavity, the rotating shaft is rotationally connected with the shell cavity through a damping mechanism, the damping mechanism comprises a blocking column, a one-way valve, a spiral sliding block and a spring, the rotating shaft stretches into the shell cavity, the outer edge of the rotating shaft is in sealing connection with the shell cavity, a sealing cavity is formed between the rotating shaft and the shell cavity, the spiral sliding block is axially and slidably connected with the rotating shaft, the spiral sliding block is sleeved on the rotating shaft, the shell cavity is in spiral connection with the spiral sliding block, the spiral sliding block divides the sealing cavity into a first cavity and a second cavity, the second cavity is close to the rotating shaft, damping liquid is arranged in the first cavity and the second cavity, an overflow hole which is communicated with the first cavity and the second cavity is arranged on the spiral sliding block, and the spring drives the one-way valve to block the overflow hole; the middle part of pivot be equipped with the pivot through-hole of intercommunication first cavity and second cavity, the stifled post locate in the pivot through-hole, form the overflow gap of intercommunication first cavity and second cavity between stifled post and the pivot through-hole.
The technical scheme for further limiting the utility model comprises the following steps:
The plug is connected with a threaded column, an internal threaded hole matched with the threaded column is formed in the through hole of the rotating shaft, the outer surface of the plug is tapered and gradually enlarged towards the direction of the threaded column, and the plug and the threaded column are provided with a regulating valve.
One end of the threaded column is provided with an adjusting hole for inserting a screwdriver.
And one end of the threaded column is provided with a sealing column, a first sealing ring is arranged on the sealing column, and the regulating valve is in sealing connection with the rotating shaft through hole through the first sealing ring.
The inner cavity of the shell is internally provided with a positioning shaft corresponding to the rotating shaft, and the positioning shaft is positioned in the through hole of the rotating shaft.
And an overflow needle is arranged in the rotating shaft through hole, and an overflow gap is formed between the overflow needle and the rotating shaft through hole.
The rotating shaft is provided with a cross positioning shaft, and the spiral sliding block is internally provided with a cross positioning hole matched with the cross positioning shaft.
The rotary shaft on be equipped with circular location axle, the check valve slide locate circular location epaxial, the spring cup joint on the check valve, the check valve on be equipped with the dog, one side and the overflow aperture of dog are connected, the another side and the one end of spring of dog are connected, the other end and the shell inner chamber bottom butt of spring.
The spiral sliding block is movably connected with the inner cavity of the shell in a sealing way through a second sealing ring.
The damper also comprises a cover plate for blocking the rotating shaft in the inner cavity of the shell, the cover plate is fixedly connected with the shell, and the rotating shaft is in sealing connection with the inner cavity of the shell through a third sealing ring.
Through the technical scheme, the utility model has the beneficial effects that: when the spiral hydraulic damper is used, the turnover cover is in a closed state, when the turnover cover is opened upwards, the shell rotates to enable the spiral sliding block to move towards the direction of the rotating shaft, the first cavity is enlarged, the second cavity is reduced, and under the action of damping hydraulic pressure in the second cavity, damping liquid in the second cavity impacts the one-way valve through the overflow hole to enable a gap to appear between the one-way valve and the spiral sliding block, and damping liquid in the second cavity flows into the first cavity; when the damper is closed, under the action of gravity of the flip, the flip drives the shell to rotate and close, and at the moment, the damping hydraulic pressure in the first cavity is larger than that of the second cavity, so that the one-way valve plugs the overflow hole under the action of the spring, and at the moment, the damping liquid in the first cavity flows into the second cavity through the overflow gap, so that the flip slowly falls down under the damping action of the damping liquid until the damper is completely closed, and the damper is not held by hands in the closing process, and no impact sound is emitted.
Drawings
Fig. 1 is a schematic perspective view of a screw hydraulic damper according to the present utility model.
Fig. 2 is an exploded structural view of a screw hydraulic damper according to the present utility model.
Fig. 3 is a schematic view showing a cut-out structure of a screw hydraulic damper of the present utility model when closed.
Fig. 4 is a schematic view showing a structure of a screw hydraulic damper according to the present utility model when opened to a certain angle (not maximum).
Fig. 5 is a schematic view showing a structure of a screw hydraulic damper according to the present utility model at an opening maximum angle.
Detailed Description
The structure of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 5, a spiral hydraulic damper comprises a housing 1 and a rotating shaft 2 rotatably connected with the housing, wherein a housing cavity 11 is arranged at one side of the housing, the rotating shaft is rotatably connected with the housing cavity through a damping mechanism 3, the damping mechanism 3 comprises a blocking column 32, a one-way valve 33, a spiral sliding block 34 and a spring 35, the rotating shaft stretches into the housing cavity, the outer edge of the rotating shaft is hermetically connected with the housing cavity, a sealing cavity is formed between the rotating shaft and the housing cavity, the spiral sliding block is axially and slidably connected with the rotating shaft, the spiral sliding block is sleeved on the rotating shaft, the housing cavity is spirally connected with the spiral sliding block, the sealing cavity is divided into a first cavity 4 and a second cavity 5 by the spiral sliding block, damping liquid is arranged in the first cavity and the second cavity, the first cavity and the second cavity are communicated through an overflow hole 35 arranged on the spiral sliding block 34, and the one-way valve is pushed by the spring to block the one-way valve to block the overflow hole; the middle part of the rotating shaft 2 is provided with a rotating shaft through hole 21 communicated with the first cavity and the second cavity, the blocking column is arranged in the rotating shaft through hole, and an overflow gap 36 communicated with the first cavity and the second cavity is formed between the blocking column and the rotating shaft through hole. When the turnover cover is opened upwards, the shell rotates to enable the spiral sliding block to move towards the direction of the rotating shaft, the first cavity is enlarged, the second cavity is reduced, and under the action of damping hydraulic pressure in the second cavity, damping liquid in the second cavity impacts the one-way valve through the overflow hole to enable a gap to appear between the one-way valve and the spiral sliding block, and damping liquid in the second cavity flows into the first cavity; when the maximum angle is opened, most damping fluid in the second cavity flows into the first cavity, at the moment, the pressure of the damping fluid in the first cavity is larger than the damping fluid pressure in the second cavity, and the one-way valve plugs the overflow hole under the action of the spring. When the damper is closed, under the action of gravity of the flip, the flip drives the shell to rotate and close, at the moment, the damping hydraulic pressure in the first cavity is larger than that in the second cavity, and the damping liquid in the first cavity flows into the second cavity through the overflow gap, so that the flip slowly falls down under the damping action of the damping liquid until the damper is completely closed, and the damper does not need to be held by hands in the closing process, and can not generate impact sound. The flow direction of the arrow in the figure is the flow direction of the damping fluid.
In this embodiment, a threaded column 37 is connected with the plug column 32, an internal threaded hole matched with the threaded column is formed in the through hole of the rotating shaft, the outer surface of the plug column is a taper 321 gradually increasing towards the direction of the threaded column, and the plug column and the threaded column are provided with a regulating valve. One end of the threaded post is provided with an adjustment hole 38 for insertion of a screwdriver. The size of the gap between the blocking column and the through hole of the rotating shaft is adjusted through the adjusting hole, and the flow speed of damping fluid is adjusted, so that the falling speed of the flip cover is adjusted, and the weight of the flip cover can be adjusted according to the weight of the flip cover. In this embodiment, a sealing post 39 is disposed at one end of the threaded post, a first sealing ring 391 is disposed on the sealing post, and the adjusting valve is in sealing connection with the through hole of the rotating shaft through the first sealing ring. Thereby maintaining the tightness of the second cavity while adjusting the threaded post.
In this embodiment, a positioning shaft 12 is disposed in the inner cavity 11 of the housing and corresponding to the rotating shaft, and the positioning shaft is disposed in the through hole of the rotating shaft. One end of the rotating shaft is positioned through the positioning shaft, and the other end of the rotating shaft is positioned through the inner cavity of the shell, so that stable rotation of the rotating shaft is maintained.
In this embodiment, an overflow needle 31 is disposed in the through hole of the rotating shaft, and an overflow gap is formed between the overflow needle and the through hole of the rotating shaft. The overflow needle can further adjust the flow velocity of damping fluid between first cavity and the second cavity, and the damping fluid can be in the through-hole round trip movement of pivot at the in-process that first cavity and second cavity flow, still can dredge overflow gap when adjusting overflow speed, prevents to block up.
In this embodiment, the rotating shaft 2 is provided with a cross positioning shaft 22, and the screw slider 34 is provided with a cross positioning hole 341 matching with the cross positioning shaft. The cross positioning shaft ensures that the spiral sliding block can stably slide along the axial direction.
In this embodiment, the rotary shaft 2 is provided with a circular positioning shaft 23, the one-way valve 33 is slidably arranged on the circular positioning shaft, the spring is sleeved on the one-way valve, the one side of the one-way valve 33 is provided with a stop block 331, one side of the stop block is connected with the overflow hole, the other side of the stop block is connected with one end of the spring, and the other end of the spring is abutted with the bottom of the inner cavity of the shell. The spring drives the check valve to be abutted with the spiral sliding block so as to block the overflow hole on the spiral sliding block. When the pressure of the damping fluid in the second cavity is larger than the elastic force of the spring, the damping fluid in the second cavity rushes away the one-way valve, and the damping fluid flows from the overflow hole to the first cavity.
In the embodiment, the spiral sliding block is movably connected with the inner cavity of the shell in a sealing way through a second sealing ring 6. The spiral sliding block is provided with a second sealing ring according to the groove, the second sealing ring is positioned in the second sealing ring according to the groove, and the spiral sliding block and the inner wall of the inner cavity of the shell keep a sealing state in the spiral rotation process.
In this embodiment, the damper further includes a cover plate 7 for blocking the rotating shaft in the inner cavity of the housing, where the cover plate is fixedly connected with the housing, and the rotating shaft is hermetically connected with the inner cavity of the housing through a third sealing ring 8. The cover plate is fixedly connected with the shell through screws, and the cover plate keeps the rotating shaft in the inner cavity of the shell.
In this embodiment, the housing 1 is provided with a mounting portion 13, and the mounting portion is provided with a mounting hole 14. The installation department can be the connecting plate, and flip passes through the mounting hole according to on the connecting plate, easy to assemble.
Although specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, the utility model should not be construed as limited to the scope of protection of the utility model. Various modifications and variations which may be made by those skilled in the art without the creative effort fall within the protection scope of the present utility model within the scope described in the claims.
Claims (10)
1. A spiral hydraulic damper, the said damper includes the outer casing and rotates the pivot connected with outer casing, its characterized in that: the device comprises a shell, a rotating shaft, a damping mechanism, a spring, a one-way valve, a sealing hole, a sealing cavity, a spring, a sealing cavity, a damping mechanism and a sealing cavity, wherein the rotating shaft is rotationally connected with the shell through the damping mechanism; the middle part of pivot be equipped with the pivot through-hole of intercommunication first cavity and second cavity, the stifled post locate in the pivot through-hole, form the overflow gap of intercommunication first cavity and second cavity between stifled post and the pivot through-hole.
2. A spiral hydraulic damper according to claim 1, wherein: the plug is connected with a threaded column, an internal threaded hole matched with the threaded column is formed in the through hole of the rotating shaft, the outer surface of the plug is tapered and gradually enlarged towards the direction of the threaded column, and the plug and the threaded column are provided with a regulating valve.
3. A spiral hydraulic damper according to claim 2, wherein: one end of the threaded column is provided with an adjusting hole for inserting a screwdriver.
4. A spiral hydraulic damper according to claim 2, wherein: and one end of the threaded column is provided with a sealing column, a first sealing ring is arranged on the sealing column, and the regulating valve is in sealing connection with the rotating shaft through hole through the first sealing ring.
5. A spiral hydraulic damper according to claim 1, wherein: the inner cavity of the shell is internally provided with a positioning shaft corresponding to the rotating shaft, and the positioning shaft is positioned in the through hole of the rotating shaft.
6. A spiral hydraulic damper according to claim 5, wherein: and an overflow needle is arranged in the rotating shaft through hole, and an overflow gap is formed between the overflow needle and the rotating shaft through hole.
7. A spiral hydraulic damper according to claim 1, wherein: the rotating shaft is provided with a cross positioning shaft, and the spiral sliding block is internally provided with a cross positioning hole matched with the cross positioning shaft.
8. A spiral hydraulic damper according to claim 1, wherein: the rotary shaft on be equipped with circular location axle, the check valve slide locate circular location epaxial, the spring cup joint on the check valve, the check valve on be equipped with the dog, one side and the overflow aperture of dog are connected, the another side and the one end of spring of dog are connected, the other end and the shell inner chamber bottom butt of spring.
9. A spiral hydraulic damper according to claim 1, wherein: the spiral sliding block is movably connected with the inner cavity of the shell in a sealing way through a second sealing ring.
10. A spiral hydraulic damper according to claim 1, wherein: the damper also comprises a cover plate for blocking the rotating shaft in the inner cavity of the shell, the cover plate is fixedly connected with the shell, and the rotating shaft is in sealing connection with the inner cavity of the shell through a third sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652038.4U CN220955191U (en) | 2023-09-28 | 2023-09-28 | Spiral hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652038.4U CN220955191U (en) | 2023-09-28 | 2023-09-28 | Spiral hydraulic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220955191U true CN220955191U (en) | 2024-05-14 |
Family
ID=91012460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322652038.4U Active CN220955191U (en) | 2023-09-28 | 2023-09-28 | Spiral hydraulic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220955191U (en) |
-
2023
- 2023-09-28 CN CN202322652038.4U patent/CN220955191U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |