CN218510063U - Shock absorber with bidirectional locking device - Google Patents
Shock absorber with bidirectional locking device Download PDFInfo
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- CN218510063U CN218510063U CN202123376281.5U CN202123376281U CN218510063U CN 218510063 U CN218510063 U CN 218510063U CN 202123376281 U CN202123376281 U CN 202123376281U CN 218510063 U CN218510063 U CN 218510063U
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Abstract
The utility model provides a take two-way blocking device's bumper shock absorber, it locks two directions when the bumper shock absorber need not be tensile, and then makes the bumper shock absorber temporarily lose the shock attenuation effect, ensures special type vehicle's demand. It includes: an outer cylinder; an inner cylinder; an end cap; a first fixing sleeve; a second fixing sleeve; a shaft lever; a piston; and a guide sleeve; the inner cylinder is arranged in the inner cavity of the outer cylinder, and a pressure storage cavity is formed between the periphery of the inner cylinder and the inner annular wall of the outer cylinder; the end cover is fixedly sleeved at one end of the outer cylinder and one end of the inner cylinder body in the length direction, and the guide sleeve is fixedly sleeved at the other end of the outer cylinder and the other end of the inner cylinder body in the length direction; the inner end of the shaft rod penetrates through the center hole of the guide sleeve and then is connected with the piston, the piston divides the cavity of the inner cylinder into an upper cavity and a lower cavity, the upper cavity is arranged close to the guide sleeve, and the lower cavity is arranged close to the end cover.
Description
Technical Field
The utility model relates to a technical field of oil buffer structure specifically is a take two-way blocking device's bumper shock absorber.
Background
The working principle of the double-acting telescopic shock absorber is as follows: during the compression stroke, the shock absorber is compressed, the piston in the shock absorber moves downwards at the moment, the volume of the lower chamber of the piston is reduced, the oil pressure is increased, oil flows to the chamber above the piston through the flow valve, part of space of the upper chamber is occupied by the shaft rod, the increased volume of the upper chamber is smaller than the reduced volume of the lower chamber, and part of oil pushes away the compression valve and flows back to the oil storage cylinder;
when the shock absorber is in an extension stroke, the wheels are equivalently far away from the vehicle body, the shock absorber is pulled to extend, at the moment, the piston of the shock absorber moves upwards, the oil pressure of the upper cavity of the piston rises, the circulating valve is closed, and oil in the upper cavity pushes the extension valve to flow into the lower cavity. The sum of the passage carrying areas of the extension valve and the corresponding normally open slit is smaller than the sum of the passage sectional areas of the compression valve and the corresponding normally open slit.
With the development of modern industry, the shock absorber is also applied to the square, and on some special vehicles, the shock absorber also plays an important role, but most special vehicles have different requirements on the effect of the shock absorber in different operation sections. For example, when a tank runs, particularly when the tank passes through an uneven ground, the shock absorber performs compression and stretching actions along with the fluctuation of a road surface to perform buffering and shock absorption, and the shock absorber is required to perform good shock absorption; and the tank requires the shock absorber to have the two-way hydraulic locking function again when the turret rotates and the gun barrel aims to provide the rigid support effect, and the tank is prevented from jumping up and down when the turret rotates and the aiming speed is influenced. In addition, if the shell is not rigidly supported during shooting, the shooting accuracy of the shell can be influenced. Most shock absorbers on the market do not have a bidirectional locking function, and the effect cannot meet the requirements of special vehicles.
Disclosure of Invention
To the problem, the utility model provides a take two-way blocking device's bumper shock absorber, it locks two directions when the bumper shock absorber need not be tensile, and then makes the bumper shock absorber temporarily lose the shock attenuation effect, ensures the demand of special type vehicle.
A shock absorber with a two-way latch, comprising:
an outer cylinder;
an inner cylinder;
an end cap;
a first fixing sleeve;
a second fixing sleeve;
a shaft lever;
a piston;
and a guide sleeve;
the inner cylinder is arranged in the inner cavity of the outer cylinder, and a pressure storage cavity is formed between the periphery of the inner cylinder and the inner annular wall of the outer cylinder; the end cover is fixedly sleeved at one end of the outer cylinder and one end of the inner cylinder body in the length direction, and the guide sleeve is fixedly sleeved at the other end of the outer cylinder and the other end of the inner cylinder body in the length direction;
the inner end of the shaft rod penetrates through the central hole of the guide sleeve and then is connected with the piston, the piston divides the cavity of the inner cylinder into an upper cavity and a lower cavity, the upper cavity is arranged close to the guide sleeve, and the lower cavity is arranged close to the end cover;
the outer end of the shaft lever protrudes out of the guide sleeve and is fixedly connected with a first fixing sleeve;
a first flow channel communicated with the lower cavity and a second flow channel communicated with the pressure storage cavity are arranged in the end cover, the first flow channel and the second flow channel are communicated to a confluence cavity through corresponding confluence pipelines, a lower hydraulic valve core is axially inserted into the confluence cavity, a first return spring is integrated with the lower hydraulic valve core, a second fixing sleeve is mounted on an exposed end cover of the end cover, a lower hydraulic locking pipe joint is arranged on the periphery of the second fixing sleeve, a hydraulic flow cavity corresponding to the movable end of the lower hydraulic valve core is arranged on the second fixing sleeve, the lower hydraulic locking pipe joint is communicated with the hydraulic flow cavity, and the valve core end of the lower hydraulic valve core blocks the confluence pipeline communicated with the confluence cavity to the first flow channel and the second flow channel in a pressure state;
the hydraulic locking device comprises a shaft rod, a piston, a first fixed sleeve and a second fixed sleeve, wherein the shaft rod is a hollow rod, a bypass hole is formed in the position, close to the piston, of the inner end of the shaft rod, an upper hydraulic valve core is arranged in an inner end cavity of the shaft rod, a second return spring is sleeved at the lower end of the upper hydraulic valve core, a piston valve sheet group is sleeved at the center of the piston, the piston valve sheet group enters and exits the inner cavity of the shaft rod through hydraulic oil in a stressed state, the bypass hole is blocked by the upper hydraulic valve core in an upper end stressed state, an upper hydraulic locking pipe joint is arranged on the periphery of the first fixed sleeve, and the upper hydraulic locking pipe joint is communicated with an upper end hollow oil cavity of the shaft rod.
It is further characterized in that:
the bottom of the inner cylinder is provided with a bottom valve plate set which ensures that a pressure cavity is opened under the condition of sufficient pressure;
the inner end of the piston is sleeved with the piston valve plate group, the upper part of the shaft lever, which corresponds to the inner cavity of the piston, is provided with a second bypass hole, the piston valve plate group enters the inner cavity of the shaft lever through the second bypass hole after receiving the opening of the pressure channel, and the front end of the upper hydraulic valve core locks the inlet and outlet channel of the second bypass hole under the stress state;
the periphery of the first fixing sleeve is provided with a dust cover, and the dust cover is used for dust prevention;
the first fixing sleeve and the second fixing sleeve are provided with joint bearings;
the lower part of the pressure accumulation cavity is used for storing hydraulic oil, the upper part of the pressure accumulation cavity is used for storing high-pressure nitrogen, the inner wall of the guide sleeve is provided with a liquid injection and gas injection hole, and the liquid injection and gas injection hole is communicated to the pressure accumulation cavity and is used for liquid injection and gas injection and overflow operation;
the valve core structures of the upper hydraulic valve core and the lower hydraulic valve core block the step holes at corresponding positions through the conical surfaces to play a role in complete sealing;
the piston valve plate group is of a double-group valve plate type piston structure, double layers of tensile damping valve plates are arranged at the lower end of the piston valve plate group, and double layers of compression damping valve plates are arranged at the upper end of the piston valve plate group.
After the structure of the utility model is adopted, when the shock absorber is not needed to play the shock absorption effect, the shaft lever does not need stretching and compressing actions; the external hydraulic device injects hydraulic oil with certain pressure through the upper hydraulic locking interface and the lower hydraulic locking interface, the hydraulic oil with certain pressure can push the hydraulic valve core, so that the hydraulic valve core seals an oil way of an internal side hole of the shock absorber firstly, when the hydraulic valve core moves forwards continuously, the valve core of the hydraulic valve core blocks a step hole in the oil way to play a role of complete sealing, at the moment, the hydraulic oil in the shock absorber cannot pass through the internal oil way, at the moment, the hydraulic oil cannot flow, the shock absorber loses the shock absorption effect, and the rigid support effect is provided; when the shock absorber is required to exert a shock absorption effect, the pressure of hydraulic oil which is injected at a certain pressure is released through an external device, the hydraulic valve core is rebounded to an initial point by the reset spring, the hydraulic oil in the shock absorber can be communicated through an oil way and circulates in the shock absorber to provide a compression damping force or a stretching damping force, and the shock absorption effect is realized; it is two directions of locking when the bumper shock absorber need not tensile and compression, and then makes the bumper shock absorber lose the shock attenuation effect temporarily, ensures special vehicle's demand.
Drawings
FIG. 1 is a schematic sectional view of the front view of the present invention;
FIG. 2 is a schematic diagram of the upper locking operation of the present invention;
fig. 3 is a schematic view of the operation principle of the present invention when locking and unlocking;
FIG. 4 is a schematic view illustrating a lower locking operation principle of the present invention;
FIG. 5 is a schematic view of the lower locking operation principle of the present invention;
FIG. 6 is a first schematic diagram illustrating the operation principle of the present invention when the lower lock is opened;
FIG. 7 is a schematic view of the second operation principle of the present invention when the lower lock is opened;
fig. 8 is a schematic view of an installation structure of a piston valve plate set according to the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the hydraulic control valve comprises an outer cylinder 10, an inner cylinder 20, an upper chamber 21, a lower chamber 22, an end cover 30, a first flow channel 31, a second flow channel 32, a confluence pipeline 33, a confluence cavity 34, a first fixing sleeve 40, an upper hydraulic locking pipe joint 41, a second fixing sleeve 50, a lower hydraulic locking pipe joint 51, a hydraulic circulation cavity 52, a shaft rod 60, a bypass hole 61, an upper end hollow oil cavity 62, a second bypass hole 63, a piston 70, a guide sleeve 80, a liquid and gas injection hole 81, a pressure accumulation cavity 90, an oil storage cavity 91, a gas storage cavity 92, a lower hydraulic valve core 100, a first return spring 101, a valve core end 102, an upper hydraulic valve core 110, a second return spring 111, a piston valve plate group 120, a tensile damping valve plate 121, a compression damping valve plate group 122, a bottom valve plate group 130, a dust cover 140 and a knuckle bearing 150.
Detailed Description
A shock absorber with a bidirectional locking device, see fig. 1-4, which comprises an outer cylinder 10, an inner cylinder 20, an end cover 30, a first fixing sleeve 40, a second fixing sleeve 50, a shaft 60, a piston 70 and a guide sleeve 80;
an inner cylinder 20 is arranged in the inner cavity of the outer cylinder 10, and a pressure storage cavity 90 is formed between the periphery of the inner cylinder 20 and the inner annular wall of the outer cylinder 10; the end covers 30 are fixedly sleeved at the lower ends of the outer cylinder 10 and the inner cylinder 20 in the length direction, and the guide sleeves 80 are fixedly sleeved at the upper ends of the outer cylinder 10 and the inner cylinder 20 in the length direction;
the inner end of the shaft rod 60 penetrates through the central hole of the guide sleeve 80 and then is connected with the piston 70, the piston 70 divides the cavity of the inner cylinder 20 into an upper chamber 21 and a lower chamber 22, the upper chamber 21 is arranged close to the guide sleeve 80, the lower chamber 22 is arranged close to the end cover 30,
the outer end of the shaft rod 60 protrudes out of the guide sleeve 80 and is fixedly connected with a first fixing sleeve 40;
a first flow passage 31 communicated with the lower cavity 22 and a second flow passage 32 communicated with the pressure accumulation cavity 90 are arranged in the end cover 30, the first flow passage 31 and the second flow passage 32 are communicated to a confluence cavity 34 through corresponding confluence pipelines 33, a lower hydraulic valve core 100 is axially inserted in the confluence cavity 34, a first return spring 101 is integrated in the lower hydraulic valve core 100, a second fixing sleeve 50 is arranged on an exposed end cover of the end cover 30, a lower hydraulic locking pipe joint 51 is arranged on the periphery of the second fixing sleeve 50, a hydraulic flow cavity 52 corresponding to the movable end of the lower hydraulic valve core 100 is arranged in the second fixing sleeve 50, the lower hydraulic locking pipe joint 51 is communicated with the hydraulic flow cavity 52, and a valve core end 102 of the lower hydraulic valve core 100 blocks the confluence pipeline 33 of the confluence cavity 34 communicated with the first flow passage 31 and the second flow passage 32 in a pressure state;
the shaft rod 60 is a hollow rod, a bypass hole 61 is formed in the position, close to the piston 70, of the inner end of the shaft rod 60, an upper hydraulic valve core 110 is arranged in an inner cavity of the inner end of the shaft rod 60, a second return spring 111 is sleeved at the lower end of the upper hydraulic valve core 110, a piston valve sheet group 120 is sleeved at the center of the piston 70, the piston valve sheet group 120 enters and exits the inner cavity of the shaft rod 60 through hydraulic oil in a stressed state, the bypass hole 61 is blocked by the upper hydraulic valve core 110 in an upper end stressed state, an upper hydraulic locking pipe joint 41 is formed in the periphery of the first fixing sleeve 40, and the upper hydraulic locking pipe joint 41 is communicated with an upper hollow oil cavity 62 of the shaft rod 60.
In specific implementation, the bottom of the inner cylinder 20 is provided with a bottom valve plate set 130, and the bottom valve plate set 130 ensures that the pressure chamber is opened under a sufficient pressure state;
the inner end of the piston 70 is sleeved with a piston valve set 120, the upper part of the shaft rod 60, which corresponds to the inner cavity of the piston 70, is provided with a second bypass hole 63, after the piston valve set 120 is subjected to pressure and a channel is opened, hydraulic oil enters the inner cavity of the shaft rod 60 through the second bypass hole 63, and the front end of the upper hydraulic valve core 110 locks the inlet and outlet channel of the second bypass hole 63 in a stressed state;
the periphery of the first fixing sleeve 40 is provided with a dust cover 140, and the dust cover 140 is used for dust prevention;
both the first fixing sleeve 40 and the second fixing sleeve 50 are provided with joint bearings 150;
the lower part of pressure storage chamber 90 is used for storing hydraulic oil and is oil storage chamber 91, upper portion is used for storing high-pressure nitrogen and is gas storage chamber 92, is provided with on the inner wall of uide bushing 80 and annotates liquid gas injection hole 81, annotates liquid gas injection hole 81 and communicates to pressure storage chamber 90 in, be used for annotating liquid gas injection and overflow operation, annotates liquid gas injection hole 81 and is provided with sealing member 82 corresponding to the peripheral position of axostylus axostyle 60, ensures that the sealing connection of axostylus axostyle and uide bushing is reliable stable.
In specific implementation, the spool structures of the upper hydraulic spool 100 and the lower hydraulic spool 110 plug the step holes at corresponding positions through the conical surfaces to achieve a complete sealing effect.
In specific implementation, the piston valve plate set 120 is a double-valve-plate piston structure, and has a double-layer tensile damping valve plate 121 at the lower end and a double-layer compression damping valve plate 122 at the upper end.
In the figure 71, a wear pad is shown;
in the figure 42 is a cushion rubber pad.
When the piston is in tensile or compression action, relative outer valve block can be opened earlier to hydraulic oil, flow through the hydraulic oil of one of them group, open another group's valve block again, later fluid gets into top or below, tensile damping valve block 121, compression damping valve block 122, can set up the low-speed overflow valve block that has not equidimension breach as required, tensile and compression direction's two groups valve block, make damping adjustment range more extensive, the effect is better, compression damping valve block 122 of compression direction, cooperation bottom valve block 130 carries out compression damping and adjusts.
The working principle is as follows: the hydraulic oil flow diagram when the piston stretches and compresses after the upper hydraulic valve core is closed is shown in figure 2: injecting hydraulic oil with certain pressure into the channel A to push the upper hydraulic valve core, wherein the channel B is closed by the hydraulic valve core at first, and at the moment, a part of hydraulic oil passes through a fit clearance between the valve core and the inner wall of the shaft rod, the pressure of the part of hydraulic oil is reduced, and at the moment, the reduced trace amount of hydraulic oil continues to move forwards and reaches the sealing point C to be stopped; this is because this small amount of hydraulic oil of the pressure is not enough to open the upper hydraulic spool pressed by the high-pressure hydraulic oil of the a-point. Similar principle, the hydraulic oil of D passageway opens behind the compression valve block during compression, through E passageway, E passageway is closed by hydraulic valve core, and the trace hydraulic oil after stepping down continues to advance this moment, arrives C sealing point department and stops.
The hydraulic oil flow diagram when the piston stretches and compresses after the upper hydraulic valve core is opened is shown in figure 3: after the pressure of the hydraulic oil is released from the channel A, the hydraulic valve core is rebounded to the initial position by the return spring, the channel B is opened, the sealing point C is opened, and the loop at the piston inside the shock absorber is opened. During stretching, hydraulic oil on the upper portion of the piston flows to the position C through the channel B and then flows to the position E, then moves forwards, opens the stretching force valve plate group, and then flows into the cavity D below the piston. During compression, hydraulic oil D at the lower part of the piston passes through the piston channel to open the compression force valve plate group, then flows to the channel E and then flows to the channel C, and then moves forwards to pass through the channel B and flow into a cavity above the piston.
The hydraulic oil flow diagram when the piston compresses after the lower valve core is closed is shown in figures 4 and 5: after hydraulic oil with certain pressure is injected into the lower hydraulic locking pipe joint, the lower hydraulic valve core is pushed, and the channel D is closed by the lower hydraulic valve core firstly. When the piston compresses, the hydraulic oil at the position A is extruded and flows into the channel B, the compression force valve plate group (namely the bottom valve group) is opened, the hydraulic oil flows into the channel C again and continues to move forwards to the channel D, the channel D is blocked by the valve core at the moment, but a part of hydraulic oil still passes through the matching gap between the valve core and the inner wall of the inner hole of the lower fixed sleeve, the pressure of the part of hydraulic oil can be reduced, the reduced-pressure trace hydraulic oil continues to move forwards at the moment and reaches the conical sealing surface at the sealing point E to be stopped, and the lower hydraulic valve core pressed by the high-pressure hydraulic oil cannot be opened due to the hydraulic oil of the part of trace pressure.
The hydraulic oil flow diagram when the piston compresses after the lower valve core is opened, and the hydraulic oil flow diagram is shown in fig. 6 and 7: after the lower hydraulic locking pipe joint releases certain pressure hydraulic oil, the reset spring rebounds the hydraulic valve core and returns to the initial opening position. When the piston compresses, the hydraulic oil at the position A is extruded and flows into the channel B, the compression force valve plate group (namely the bottom valve group) is opened, then flows into the channel C and then flows into the channel D, and then flows into the oil storage chamber between the inner cylinder and the outer cylinder through the oil way.
The working principle is as follows: when the shock absorber is not needed to play a shock absorption effect, the shaft rod does not need stretching and compressing actions; the external hydraulic device injects hydraulic oil with certain pressure through the upper hydraulic locking interface and the lower hydraulic locking interface, the hydraulic oil with certain pressure can push the hydraulic valve core, so that the hydraulic valve core seals an oil path of an internal side hole of the shock absorber firstly, when the hydraulic valve core moves forwards continuously, the valve core of the hydraulic valve core is blocked in the oil path to play a complete sealing role, the hydraulic oil in the shock absorber cannot pass through the internal oil path at the moment, the hydraulic oil cannot flow at the moment, the shock absorber loses the shock absorption effect, and the rigid support effect is provided; when the shock absorber is required to exert a shock absorption effect, the pressure of hydraulic oil which is injected at a certain pressure is released through an external device, the hydraulic valve core is rebounded to an initial point by the reset spring, the hydraulic oil in the shock absorber can be communicated through an oil way and circulates in the shock absorber to provide a compression damping force or a stretching damping force, and the shock absorption effect is realized; it locks two directions when the bumper shock absorber need not be tensile, and then makes the bumper shock absorber lose the shock attenuation effect temporarily, ensures special type vehicle's demand.
The beneficial effects are as follows: the shock absorber has the two-way locking function, and the shock absorber piston valve piece group has the combination of two group valve blocks, and the director has sealed and pressure release effect, extension shock absorber life. The double-layer valve plate type piston enables the damping change range to be wider, and the bidirectional locking function has the function of providing rigid support for the vehicle according to actual conditions.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A shock absorber with a bidirectional locking device is characterized by comprising:
an outer cylinder;
an inner cylinder;
an end cap;
a first fixing sleeve;
a second fixing sleeve;
a shaft lever;
a piston;
and a guide sleeve;
the inner cylinder is arranged in the inner cavity of the outer cylinder, and a pressure storage cavity is formed between the periphery of the inner cylinder and the inner annular wall of the outer cylinder; the end cover is fixedly sleeved at one end of the outer cylinder and one end of the inner cylinder body in the length direction, and the guide sleeve is fixedly sleeved at the other end of the outer cylinder and the other end of the inner cylinder body in the length direction;
the inner end of the shaft rod penetrates through the center hole of the guide sleeve and then is connected with the piston, the piston divides the cavity of the inner cylinder into an upper cavity and a lower cavity, the upper cavity is arranged close to the guide sleeve, and the lower cavity is arranged close to the end cover;
the outer end of the shaft lever protrudes out of the guide sleeve and is fixedly connected with a first fixing sleeve;
the end cover is internally provided with a first flow passage communicated with the lower cavity and a second flow passage communicated with the pressure storage cavity, the first flow passage and the second flow passage are communicated to a confluence cavity through corresponding confluence pipelines, a lower hydraulic valve core is axially inserted into the confluence cavity, a first return spring is integrated with the lower hydraulic valve core, the exposed end cover of the end cover is provided with a second fixing sleeve, the periphery of the second fixing sleeve is provided with a lower hydraulic locking pipe joint, the second fixing sleeve is provided with a hydraulic flow cavity corresponding to the movable end of the lower hydraulic valve core, the lower hydraulic locking pipe joint is communicated with the hydraulic flow cavity, and the valve core end of the lower hydraulic valve core blocks the confluence pipeline of the confluence cavity communicated to the first flow passage and the second flow passage in a pressure state;
the hydraulic locking device comprises a shaft rod, a piston, a first fixed sleeve and a second fixed sleeve, wherein the shaft rod is a hollow rod, a bypass hole is formed in the position, close to the piston, of the inner end of the shaft rod, an upper hydraulic valve core is arranged in an inner end cavity of the shaft rod, a second return spring is sleeved at the lower end of the upper hydraulic valve core, a piston valve sheet group is sleeved at the center of the piston, the piston valve sheet group enters and exits the inner cavity of the shaft rod through hydraulic oil in a stressed state, the bypass hole is blocked by the upper hydraulic valve core in an upper end stressed state, an upper hydraulic locking pipe joint is arranged on the periphery of the first fixed sleeve, and the upper hydraulic locking pipe joint is communicated with an upper end hollow oil cavity of the shaft rod.
2. A shock absorber with a bi-directional blocking device as claimed in claim 1, wherein: and a bottom valve plate group is arranged at the bottom of the inner cylinder.
3. A shock absorber with a bi-directional blocking device as claimed in claim 1, wherein: the inner end of the piston is sleeved with the piston valve plate set, the upper portion of the shaft rod, corresponding to the inner cavity of the piston, is provided with a second bypass hole, the piston valve plate set enters the inner cavity of the shaft rod through the second bypass hole after receiving the opening of the pressure channel, and the front end of the upper hydraulic valve core locks an inlet and outlet channel of the second bypass hole in a stressed state.
4. A shock absorber with a bi-directional blocking device as claimed in claim 1, wherein: the periphery of the first fixing sleeve is provided with a dust cover.
5. A shock absorber with a bi-directional blocking device as claimed in claim 1, wherein: and joint bearings are arranged on the first fixing sleeve and the second fixing sleeve.
6. A shock absorber with a bi-directional blocking device as claimed in claim 1, wherein: the lower part of pressure accumulation chamber is used for storing hydraulic oil, upper portion is used for storing high pressure nitrogen gas, be provided with on the inner wall of uide bushing and annotate the liquid gas injection hole, it communicates to annotate the liquid gas injection hole intercommunication to in the pressure accumulation chamber, be used for annotating liquid gas injection and overflow operation.
7. A shock absorber with a bi-directional blocking device as claimed in claim 1, wherein: the valve core structures of the upper hydraulic valve core and the lower hydraulic valve core block the step holes at the corresponding positions through the conical surfaces to play a complete sealing role.
8. A shock absorber with a bi-directional blocking device as claimed in claim 3, wherein: the piston valve plate group is of a double-group valve plate type piston structure, double layers of tensile damping valve plates are arranged at the lower end of the piston valve plate group, and double layers of compression damping valve plates are arranged at the upper end of the piston valve plate group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123376281.5U CN218510063U (en) | 2021-12-29 | 2021-12-29 | Shock absorber with bidirectional locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123376281.5U CN218510063U (en) | 2021-12-29 | 2021-12-29 | Shock absorber with bidirectional locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218510063U true CN218510063U (en) | 2023-02-21 |
Family
ID=85205747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123376281.5U Active CN218510063U (en) | 2021-12-29 | 2021-12-29 | Shock absorber with bidirectional locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218510063U (en) |
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2021
- 2021-12-29 CN CN202123376281.5U patent/CN218510063U/en active Active
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