CN220726956U - Duplex adjustable hydro-pneumatic spring device - Google Patents
Duplex adjustable hydro-pneumatic spring device Download PDFInfo
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- CN220726956U CN220726956U CN202322535843.9U CN202322535843U CN220726956U CN 220726956 U CN220726956 U CN 220726956U CN 202322535843 U CN202322535843 U CN 202322535843U CN 220726956 U CN220726956 U CN 220726956U
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- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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Abstract
The application discloses a duplex adjustable hydro-pneumatic spring device, which relates to the technical field of hydro-pneumatic springs and comprises a first hydraulic cylinder, a second hydraulic cylinder, a first energy accumulator, a second energy accumulator, a three-position four-way reversing valve, a first reversing valve and a second reversing valve; the first energy accumulator is communicated with the first reversing valve and is communicated with rodless cavities of the first hydraulic cylinder and the second hydraulic cylinder; the second energy accumulator is communicated with the second reversing valve and is communicated with rod cavities of the first hydraulic cylinder and the second hydraulic cylinder; the first hydraulic cylinder is provided with a rod cavity, the second hydraulic cylinder is provided with a rod cavity and the second hydraulic cylinder is provided with a rod cavity, and the rod cavity and the second hydraulic cylinder are communicated with four interfaces of the three-position four-way reversing valve; the three-position four-way reversing valve, the first reversing valve and the second reversing valve are controlled to be powered on and powered off, so that the first hydraulic cylinder and the second hydraulic cylinder are independent or communicated, and the adjustability of the first hydraulic cylinder and the second hydraulic cylinder is improved.
Description
Technical Field
The utility model belongs to the technical field of hydro-pneumatic springs, and particularly relates to a duplex adjustable hydro-pneumatic spring device.
Background
The hydro-pneumatic spring is a vibration damper, which uses gas (nitrogen) as elastic element and introduces oil between gas and piston as intermediate medium, thus achieving the effects of balancing axle load, damping vibration, adjusting vehicle body height, etc. the hydro-pneumatic spring not only has the advantages of low self-vibration frequency and variable rigidity of air spring, but also has better sealing property, bearing larger pressure, and greatly reducing size and weight, thus being widely applied to large vehicles.
Chinese patent application publication No. CN113059975 a discloses a damping-adjustable hydro-pneumatic suspension, which changes the opening of the valve port by controlling the current of the electromagnetic proportional valve, thereby changing the damping force. This structure can realize continuous adjustment of damping force, but cannot adjust suspension stiffness.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a duplex adjustable hydro-pneumatic spring device which can realize the independent or intercommunication of two hydro-pneumatic springs and improve the adjustability of the hydro-pneumatic springs.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the double adjustable hydro-pneumatic spring device comprises a first hydraulic cylinder, a second hydraulic cylinder, a first energy accumulator, a second energy accumulator, a three-position four-way reversing valve, a first reversing valve and a second reversing valve; the first energy accumulator is communicated with the first reversing valve and is communicated with rodless cavities of the first hydraulic cylinder and the second hydraulic cylinder; the second energy accumulator is communicated with the second reversing valve and is communicated with rod cavities of the first hydraulic cylinder and the second hydraulic cylinder; the first hydraulic cylinder is provided with a rod cavity, the second hydraulic cylinder is provided with a rod cavity and the second hydraulic cylinder is provided with a rod cavity, and the rod cavity and the second hydraulic cylinder are communicated with four interfaces of the three-position four-way reversing valve.
Preferably, the first reversing valve is a three-position three-way reversing valve; when the first reversing valve is in the state that both the left electromagnet and the right electromagnet are powered off, the first energy accumulator is simultaneously communicated with rodless cavities of the first hydraulic cylinder and the second hydraulic cylinder; when only one of the left electromagnet and the right electromagnet is electrified, the first energy accumulator is communicated with the rodless cavity of the second hydraulic cylinder alone or communicated with the rodless cavity of the first hydraulic cylinder alone.
Preferably, the second reversing valve is a three-position three-way reversing valve; when the second reversing valve is in the state that both the left electromagnet and the right electromagnet are powered off, the second energy accumulator is simultaneously communicated with rod cavities of the first hydraulic cylinder and the second hydraulic cylinder; when only one of the left electromagnet and the right electromagnet is electrified, the second energy accumulator is communicated with the rod cavity of the second hydraulic cylinder alone or with the rod cavity of the first hydraulic cylinder alone.
Preferably, a first throttle valve is further arranged on a pipeline between the first energy accumulator and the first reversing valve, and a second throttle valve is further arranged on a pipeline between the second energy accumulator and the second reversing valve.
Preferably, a third reversing valve is further arranged on a pipeline between the first energy accumulator and the first reversing valve, and a fourth reversing valve is further arranged on a pipeline between the second energy accumulator and the second reversing valve; the third reversing valve and the fourth reversing valve are two-position two-way reversing valves.
Preferably, when both the left electromagnet and the right electromagnet of the three-position four-way reversing valve are powered off, the rod cavity and the rodless cavity of the first hydraulic cylinder are in a blocking state, and the rod cavity and the rodless cavity of the second hydraulic cylinder are in a blocking state; when the left electromagnet of the three-position four-way reversing valve is electrified and the right electromagnet is powered off, the first hydraulic cylinder and the second hydraulic cylinder are in mutually independent states, a rod cavity of the first hydraulic cylinder is communicated with a rodless cavity, and a rod cavity of the second hydraulic cylinder is communicated with the rodless cavity; when the left electromagnet of the three-position four-way reversing valve is powered off and the right electromagnet is powered on, the rodless cavity of the first hydraulic cylinder is communicated with the rod cavity of the second hydraulic cylinder, and the rodless cavity of the second hydraulic cylinder is communicated with the rod cavity of the first hydraulic cylinder.
Preferably, a third throttle valve is communicated with a pipeline between the rodless cavity of the first hydraulic cylinder and the three-position four-way reversing valve, and a fourth throttle valve is communicated with a pipeline between the rodless cavity of the second hydraulic cylinder and the three-position four-way reversing valve.
Preferably, the first and second accumulators are both diaphragm accumulators.
The beneficial effects of the utility model are as follows:
(1) The three-position four-way reversing valve, the first reversing valve and the second reversing valve are controlled to be powered on and powered off, so that the first hydraulic cylinder and the second hydraulic cylinder are independent or communicated, the first energy accumulator is communicated with the first hydraulic cylinder and/or the second hydraulic cylinder, and the second energy accumulator is communicated with the second hydraulic cylinder and/or the first hydraulic cylinder, and the adjustability of the first hydraulic cylinder and the second hydraulic cylinder is improved.
(2) The third reversing valve and the fourth reversing valve are electrically controlled to switch in the whole hydro-pneumatic spring or not, so that the adjustability of the whole hydro-pneumatic spring is further improved.
(3) The first throttle valve, the second throttle valve, the third throttle valve and the fourth throttle valve are arranged, so that the integral rigidity and damping parameters of the hydro-pneumatic spring can be adjusted, and the damping effect is further improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
Marked in the figure as: 1 is a first hydraulic cylinder, 2 is a second hydraulic cylinder, 3 is a first energy accumulator, 4 is a second energy accumulator, 5 is a three-position four-way reversing valve, 6 is a first reversing valve, 7 is a second reversing valve, 8 is a third reversing valve, 9 is a fourth reversing valve, 10 is a first throttling valve, 11 is a second throttling valve, 12 is a third throttling valve, and 13 is a fourth throttling valve.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
It should be noted that the terms like "upper", "lower", "left", "right", "front", "rear", and the like are also used for descriptive purposes only and are not intended to limit the scope of the utility model in which the utility model may be practiced, but rather the relative relationship of the terms may be altered or modified without materially altering the teachings of the utility model.
As shown in fig. 1, a dual adjustable hydro-pneumatic spring device is provided, which comprises a first hydraulic cylinder 1, a second hydraulic cylinder 2, a first energy accumulator 3, a second energy accumulator 4, a three-position four-way reversing valve 5, a first reversing valve 6 and a second reversing valve 7; the first energy accumulator 3 is communicated with a first reversing valve 6 and is communicated with rodless cavities of the first hydraulic cylinder 1 and the second hydraulic cylinder 2; the second energy accumulator 4 is communicated with a second reversing valve 7 and is communicated with rod cavities of the first hydraulic cylinder 1 and the second hydraulic cylinder 2; the first energy accumulator 3 and the second energy accumulator 4 are diaphragm type energy accumulators, the gas pressure can be adjusted according to the load requirement, and the pressure of the first energy accumulator 3 and the pressure of the second energy accumulator 4 can be the same or can be adjusted to different gas pressures according to the requirement; the first hydraulic cylinder 1 is provided with a rod cavity, the second hydraulic cylinder 2 is provided with a rod cavity and the second hydraulic cylinder 2 is provided with a rod cavity, the rod cavity is communicated with four interfaces of the three-position four-way reversing valve 5, the first hydraulic cylinder 1 and the second hydraulic cylinder 2 are piston type hydraulic cylinders and mainly comprise a cylinder barrel, a piston rod, a sealing element and the like, the piston is connected with the piston rod, and the piston can reciprocate in the cylinder barrel.
Specifically, the first reversing valve 6 is a three-position three-way reversing valve; the second reversing valve 7 is also a three-position three-way reversing valve; when the left electromagnet 3YA and the right electromagnet 4YA of the first reversing valve 6 are both powered off, the first energy accumulator 3 is simultaneously communicated with rodless cavities of the first hydraulic cylinder 1 and the second hydraulic cylinder 2, when the left electromagnet 3YA and the right electromagnet 4YA of the first reversing valve 6 are powered on, the first energy accumulator 3 is independently communicated with the rodless cavity of the second hydraulic cylinder 2, and when the left electromagnet 3YA and the right electromagnet 4YA of the first reversing valve 6 are powered on, the first energy accumulator 3 is independently communicated with the rodless cavity of the first hydraulic cylinder 1.
When the second reversing valve 7 is in the state that both the left electromagnet 5YA and the right electromagnet 6YA are powered off, the second energy accumulator 4 is simultaneously communicated with rod cavities of the first hydraulic cylinder 1 and the second hydraulic cylinder 2; when the left electromagnet 5YA and the right electromagnet 6YA of the second reversing valve 7 are electrified, the second energy accumulator 4 is solely communicated with the rod cavity of the second hydraulic cylinder 2, and when the left electromagnet 5YA and the right electromagnet 6YA of the second reversing valve 7 are electrified, the second energy accumulator 4 is solely communicated with the rod cavity of the first hydraulic cylinder 1.
Further, a first throttle valve 10 is further arranged on a pipeline between the first energy accumulator 3 and the first reversing valve 6, a second throttle valve 11 is further arranged on a pipeline between the second energy accumulator 4 and the second reversing valve 7, and the first throttle valve 10 and the second throttle valve 11 can control the oil flow entering the first energy accumulator 3 and the second energy accumulator 4.
Specifically, a third reversing valve 8 is further arranged on a pipeline between the first energy accumulator 3 and the first reversing valve 6, and a fourth reversing valve 9 is further arranged on a pipeline between the second energy accumulator 4 and the second reversing valve 7; the third reversing valve 8 and the fourth reversing valve 9 are two-position two-way reversing valves, after the right electromagnet 7YA of the third reversing valve 8 is electrified, the first energy accumulator 3 is in a communication state with the first reversing valve 6, after the right electromagnet 7YA of the third reversing valve 8 is deenergized, the first energy accumulator 3 is in a cutting-off state with the first reversing valve 6, namely, the third reversing valve 8 can control whether the first energy accumulator 3 is connected into a system, after the right electromagnet 8YA of the fourth reversing valve 9 is electrified, the second energy accumulator 4 is in a communication state with the second reversing valve 7, and after the right electromagnet 8YA of the fourth reversing valve 9 is deenergized, the second energy accumulator 4 is in a cutting-off state with the second reversing valve 7, namely, the fourth reversing valve 9 can control whether the second energy accumulator 4 is connected into the whole system.
Specifically, when both the left electromagnet 1YA and the right electromagnet 2YA of the three-position four-way reversing valve 5 are powered off, the rod cavity and the rodless cavity of the first hydraulic cylinder 1 are in a blocking state, and the rod cavity and the rodless cavity of the second hydraulic cylinder 2 are in a blocking state; when the left electromagnet 1YA and the right electromagnet 2YA of the three-position four-way reversing valve 5 are electrified and the right electromagnet 2YA is deenergized, the first hydraulic cylinder 1 and the second hydraulic cylinder 2 are in mutually independent states, a rod cavity and a rodless cavity of the first hydraulic cylinder 1 are communicated, and a rod cavity and a rodless cavity of the second hydraulic cylinder 2 are communicated; when the left electromagnet 1YA of the three-position four-way reversing valve 5 is powered off and the right electromagnet 2YA is powered on, the rodless cavity of the first hydraulic cylinder 1 is communicated with the rod cavity of the second hydraulic cylinder 2, and the rodless cavity of the second hydraulic cylinder 2 is communicated with the rod cavity of the first hydraulic cylinder 1.
A third throttle valve 12 is communicated with a pipeline between the rodless cavity of the first hydraulic cylinder 1 and the three-position four-way reversing valve 5, a fourth throttle valve 13 is communicated with a pipeline between the rodless cavity of the second hydraulic cylinder 2 and the three-position four-way reversing valve 5, the third throttle valve 12 can control the flow of the rodless cavity of the first hydraulic cylinder 1, and the fourth throttle valve 13 can control the flow of the rodless cavity of the second hydraulic cylinder 2.
When the three-position four-way reversing valve is used, the left electromagnet 1YA and the right electromagnet 2YA of the three-position four-way reversing valve 5 are all powered off, the first reversing valve 6 and the second reversing valve 7 are all powered off, the third reversing valve 8 and the fourth reversing valve 9 are all powered off, the hydro-pneumatic spring is in a locking state at the moment, the first hydraulic cylinder 1 and the second hydraulic cylinder 2 are mutually independent, and basically no rigidity and damping exist.
If the left electromagnet 1YA and the right electromagnet 2YA of the three-position four-way reversing valve 5 are powered off, the first reversing valve 6 and the second reversing valve 7 are powered off, when the right electromagnet 7YA of the third reversing valve 8 is powered on, the rodless cavity of the first hydraulic cylinder 1 and the rodless cavity of the second hydraulic cylinder 2 are communicated with the first energy accumulator 3, and when the right electromagnet 8YA of the fourth reversing valve is powered on, the rod cavity of the first hydraulic cylinder 1 and the rod cavity of the second hydraulic cylinder 2 are communicated with the second energy accumulator 4; the rigidity of the device depends on the accumulator communicated with the first hydraulic cylinder 1 and the second hydraulic cylinder 2, namely, when the first accumulator 3 is communicated with the first hydraulic cylinder 1 and the second hydraulic cylinder 2, the rigidity depends on the inflation pressure and the volume of the first accumulator 3, and the damping strength depends on the opening size of the first throttle valve 10; the stiffness of the second accumulator 4 when communicating with the first and second hydraulic cylinders 1, 2 depends on the inflation pressure and volume of the second accumulator 4, the strength of the damping depends on the opening size of the second throttle valve 11, and when both the first and second accumulators 3, 4 communicate with the first and second hydraulic cylinders 1, 2, the stiffness depends on the inflation pressure and volume of the first and second accumulators 3, 4, the strength of the damping depends on the opening size of the first and second throttle valves 10, 11, at which time the stiffness and damping strength are larger than when only one accumulator is connected.
If the left electromagnet 1YA and the right electromagnet 2YA of the three-position four-way reversing valve 5 are powered off, the right electromagnet 7YA of the third reversing valve 8 and the right electromagnet 8YA of the fourth reversing valve 9 are powered on, and when only one of the left electromagnet 3YA and the right electromagnet 4YA of the first reversing valve 6 is powered on, the first energy accumulator 3 is communicated with the rodless cavity of the second hydraulic cylinder 2 or the rodless cavity of the first hydraulic cylinder 1; likewise, if only one of the left electromagnet 5YA and the right electromagnet 6YA of the second reversing valve 7 is energized, the second accumulator 4 communicates only with the rod chamber of the second hydraulic cylinder 2 or with the rod chamber of the first hydraulic cylinder 1; when the left electromagnet 3YA of the first reversing valve 6 and the right electromagnet 6YA of the second reversing valve 7 are electrified, the first hydraulic cylinder 1 and the second hydraulic cylinder 2 are mutually independent, a rod cavity of the first hydraulic cylinder 1 is communicated with the second energy accumulator 4, and a rodless cavity of the second hydraulic cylinder 2 is communicated with the first energy accumulator 3; if the right electromagnet 4YA of the first reversing valve 6 and the left electromagnet 5YA of the second reversing valve 7 are electrified, the rodless cavity of the first hydraulic cylinder 1 is communicated with the first energy accumulator 3, and the rod cavity of the second hydraulic cylinder 2 is communicated with the second energy accumulator 4.
If the left electromagnet 1YA of the three-position four-way valve is electrified and the right electromagnet 2YA of the three-position four-way valve is powered off, the right electromagnet 7YA of the third reversing valve 8 and the right electromagnet 8YA of the fourth reversing valve 9 are electrified, when the left electromagnet 3YA of the first reversing valve 6 and the right electromagnet 6YA of the second reversing valve 7 are electrified, the rodless cavity and the rod cavity of the first hydraulic cylinder 1 are in a communication state, the rodless cavity and the rod cavity of the second hydraulic cylinder are also in a communication state, at the moment, the first hydraulic cylinder 1 is communicated with the second energy accumulator 4, and the second hydraulic cylinder 2 is communicated with the first energy accumulator 3; when the right electromagnet 4YA of the first reversing valve 6 and the left electromagnet 5YA of the second reversing valve 7 are electrified, the rodless cavity and the rod cavity of the first hydraulic cylinder 1 are in a communication state, the rodless cavity and the rod cavity of the second hydraulic rod are also in a communication state, at this time, the first hydraulic cylinder 1 is communicated with the first energy accumulator 3, and the second hydraulic cylinder 2 is communicated with the second energy accumulator 4.
If the left electromagnet 1YA of the three-position four-way valve is powered off and the right electromagnet 2YA of the three-position four-way valve is powered on, the right electromagnet 7YA of the third reversing valve 8 and the right electromagnet 8YA of the fourth reversing valve 9 are powered on, when the left electromagnet 3YA of the first reversing valve 6 and the left electromagnet 5YA of the second reversing valve 7 are powered on, the rodless cavity of the first hydraulic cylinder 1 is communicated with the rod cavity of the second hydraulic cylinder 2 and is communicated with the second energy accumulator 4, and the rod cavity of the first hydraulic cylinder 1 is communicated with the rod cavity of the second hydraulic cylinder 2 and is communicated with the first energy accumulator 3; if the right electromagnet 4YA of the first reversing valve 6 and the right electromagnet 6YA of the second reversing valve 7 are electrified, the rodless cavity of the first hydraulic cylinder 1 is communicated with the rod cavity of the second hydraulic cylinder 2 and is communicated with the first energy accumulator 3, and the rod cavity of the first hydraulic cylinder 1 is communicated with the rod cavity of the second hydraulic cylinder 2 and is communicated with the second energy accumulator 4.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be within the scope of the utility model as set forth in the following claims.
Claims (8)
1. The double adjustable hydro-pneumatic spring device is characterized by comprising a first hydraulic cylinder (1), a second hydraulic cylinder (2), a first energy accumulator (3), a second energy accumulator (4), a three-position four-way reversing valve (5), a first reversing valve (6) and a second reversing valve (7); the first energy accumulator (3) is communicated with the first reversing valve (6) and is communicated with rodless cavities of the first hydraulic cylinder (1) and the second hydraulic cylinder (2); the second energy accumulator (4) is communicated with a second reversing valve (7) and is communicated with rod cavities of the first hydraulic cylinder (1) and the second hydraulic cylinder (2); the first hydraulic cylinder (1) is provided with a rod cavity, the first hydraulic cylinder (1) is provided with a rodless cavity, the second hydraulic cylinder (2) is provided with a rod cavity and the rodless cavity of the second hydraulic cylinder (2) are communicated with four interfaces of the three-position four-way reversing valve (5).
2. The double adjustable hydro-pneumatic spring device according to claim 1, wherein the first reversing valve (6) is a three-position three-way reversing valve; when the first reversing valve (6) is in the state that both the left electromagnet and the right electromagnet are powered off, the first energy accumulator (3) is simultaneously communicated with rodless cavities of the first hydraulic cylinder (1) and the second hydraulic cylinder (2); when only one of the left electromagnet and the right electromagnet is electrified, the first energy accumulator (3) is communicated with the rodless cavity of the second hydraulic cylinder (2) alone or is communicated with the rodless cavity of the first hydraulic cylinder (1) alone.
3. The double adjustable hydro-pneumatic spring device according to claim 1, characterized in that the second reversing valve (7) is a three-position three-way reversing valve; when the second reversing valve (7) is positioned on the left electromagnet and the right electromagnet and is powered off, the second energy accumulator (4) is simultaneously communicated with rod cavities of the first hydraulic cylinder (1) and the second hydraulic cylinder (2); when only one of the left electromagnet and the right electromagnet is electrified, the second energy accumulator (4) is independently communicated with the rod cavity of the second hydraulic cylinder (2) or is independently communicated with the rod cavity of the first hydraulic cylinder (1).
4. The double adjustable hydro-pneumatic spring device according to claim 1, wherein a first throttle valve (10) is further arranged on a pipeline between the first energy accumulator (3) and the first reversing valve (6), and a second throttle valve (11) is further arranged on a pipeline between the second energy accumulator (4) and the second reversing valve (7).
5. The double adjustable hydro-pneumatic spring device according to claim 1, wherein a third reversing valve (8) is further arranged on a pipeline between the first energy accumulator (3) and the first reversing valve (6), and a fourth reversing valve (9) is further arranged on a pipeline between the second energy accumulator (4) and the second reversing valve (7); the third reversing valve (8) and the fourth reversing valve (9) are two-position two-way reversing valves.
6. The double adjustable hydro-pneumatic spring device according to claim 1, wherein when both the left electromagnet and the right electromagnet of the three-position four-way reversing valve (5) are powered off, the rod cavity and the rodless cavity of the first hydraulic cylinder (1) are in a blocking state, and the rod cavity and the rodless cavity of the second hydraulic cylinder (2) are in a blocking state; when the left electromagnet of the three-position four-way reversing valve (5) is electrified and the right electromagnet is powered off, the first hydraulic cylinder (1) and the second hydraulic cylinder (2) are in mutually independent states, a rod cavity of the first hydraulic cylinder (1) is communicated with a rodless cavity, and a rod cavity of the second hydraulic cylinder (2) is communicated with the rodless cavity; when the left electromagnet of the three-position four-way reversing valve (5) is powered off and the right electromagnet is powered on, the rodless cavity of the first hydraulic cylinder (1) is communicated with the rod cavity of the second hydraulic cylinder (2), and the rodless cavity of the second hydraulic cylinder (2) is communicated with the rod cavity of the first hydraulic cylinder (1).
7. The double adjustable hydro-pneumatic spring device according to claim 1, wherein a third throttle valve (12) is communicated with a pipeline between the rodless cavity of the first hydraulic cylinder (1) and the three-position four-way reversing valve (5), and a fourth throttle valve (13) is communicated with a pipeline between the rodless cavity of the second hydraulic cylinder (2) and the three-position four-way reversing valve (5).
8. The double adjustable hydro-pneumatic spring device as defined in claim 1, wherein the first accumulator (3) and the second accumulator (4) are both diaphragm accumulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322535843.9U CN220726956U (en) | 2023-09-19 | 2023-09-19 | Duplex adjustable hydro-pneumatic spring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322535843.9U CN220726956U (en) | 2023-09-19 | 2023-09-19 | Duplex adjustable hydro-pneumatic spring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726956U true CN220726956U (en) | 2024-04-05 |
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ID=90525748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322535843.9U Active CN220726956U (en) | 2023-09-19 | 2023-09-19 | Duplex adjustable hydro-pneumatic spring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726956U (en) |
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2023
- 2023-09-19 CN CN202322535843.9U patent/CN220726956U/en active Active
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