CN221237094U - Nitrogen shock absorber - Google Patents
Nitrogen shock absorber Download PDFInfo
- Publication number
- CN221237094U CN221237094U CN202323458378.XU CN202323458378U CN221237094U CN 221237094 U CN221237094 U CN 221237094U CN 202323458378 U CN202323458378 U CN 202323458378U CN 221237094 U CN221237094 U CN 221237094U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- shock absorber
- oil immersion
- oil
- tower top
- 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
- 230000035939 shock Effects 0.000 title claims abstract description 43
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 37
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 13
- 239000004519 grease Substances 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 238000007654 immersion Methods 0.000 claims description 34
- 230000001050 lubricating effect Effects 0.000 claims description 15
- 238000005187 foaming Methods 0.000 claims description 9
- 238000005461 lubrication Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 31
- 238000013016 damping Methods 0.000 description 3
- -1 vapor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to the technical field of shock absorbers and discloses a nitrogen shock absorber, which comprises a shock absorber cylinder and a piston rod, wherein the end part of the piston rod is fixedly provided with a valve body; the outside of the shock absorber cylinder is provided with screw teeth which are used for connecting a lower tower top pressing piece, the upper end of the piston rod is provided with an upper tower top pressing piece, and a shock absorption spring is propped between the lower tower top pressing piece and the upper tower top pressing piece. According to the utility model, when the shock absorber works, the part of the piston rod enters and exits at the end part of the shock absorber cylinder, and the upper end of the shock absorber cylinder is provided with the sealing ring, so that the exposed part of the piston rod is protected by grease sealing through the design of the device, so that water, water vapor, dust and the like are effectively separated from the piston rod, and can smoothly stretch and retract into the shock absorber cylinder, and the service life of the piston rod is prolonged.
Description
Technical Field
The utility model relates to the technical field of shock absorbers, in particular to a nitrogen shock absorber.
Background
The shock absorber (Absorber) is used for restraining the vibration and the impact from the road surface when the spring rebounds after absorbing the vibration. The damping device is widely used for automobiles, and is used for accelerating the damping of the vibration of the frames and the automobile bodies so as to improve the running smoothness of the automobiles. While the shock absorbing spring can filter the shock of road surface when passing over uneven road surface, the spring itself can reciprocate, and the shock absorber is used to restrain the spring from jumping. The piston rod of the existing shock absorber is easy to be stained with external dirt, so that the normal movement of the piston rod is influenced, the existing axial movement of the shock absorber is unstable, and the shock absorber is easy to age and damage.
Disclosure of utility model
The utility model aims to solve the technical problems that: in order to overcome the problems presented above, a nitrogen damper is provided which solves the problems presented above.
The utility model solves the technical problems by adopting the following technical scheme:
A nitrogen shock absorber comprises a shock absorber cylinder and a piston rod with a valve body fixed at one end;
The outer part of the shock absorber cylinder is provided with a screw tooth which is used for connecting a lower tower top pressing piece, the upper end of the piston rod is provided with an upper tower top pressing piece, and a shock absorption spring is propped between the lower tower top pressing piece and the upper tower top pressing piece;
One end cartridge of piston rod is in throttle speed reduction shock attenuation is carried out in the shock absorber section of thick bamboo the outside suit of piston rod is fixed and is equipped with one and soaks the oil cup and be used for with the flexible naked part of piston rod is wrapped up, and it is used for the oil seal to fill in the oil cup to be equipped with lubricating grease, lubricating grease wraps up completely the one section of the naked part of piston rod makes it separate completely with moisture dust, can effectually guarantee the flexible smoothness nature of piston rod.
Preferably, an oil storage cavity is arranged in the oil immersion cup, through openings are formed in the upper end and the lower end of the oil immersion cup for the piston rod to pass through, and sealing rings which are wrapped on the outer wall of the piston rod for sealing are fixedly embedded in the openings, so that lubricating grease stored in the oil storage cavity is limited to be difficult to leak locally.
Preferably, a rubber ring groove is formed in the upper end of the shock absorber cylinder, and an O-shaped sealing ring is fixedly arranged on the lower end face of the oil immersion cup and is pressed on the rubber ring groove by the oil immersion cup to form a seal.
Preferably, the oil immersion device further comprises a return spring sleeved outside the piston rod, two ends of the return spring respectively prop against the upper end face of the oil immersion cup and the lower end face of the upper tower top pressing piece, and the return spring is used for pressing the oil immersion cup on the damper cylinder.
Preferably, the movable stroke distance of the piston rod is not greater than the height of the oil immersion cup, so that the portion of the piston rod extending into the interior of the damper cylinder is also entirely protected by the grease when the piston rod is fully retracted.
Preferably, the oil immersion cup is further embedded with a foaming sponge, the foaming sponge is full of lubricating grease, and the foaming sponge is arranged, so that the use amount of the lubricating grease can be reduced while good lubrication is ensured, and the cost and the weight are reduced.
The utility model has the advantages and positive effects that: when the shock absorber works, part of the piston rod enters and exits at the end part of the shock absorber cylinder, and as the upper end of the shock absorber cylinder is provided with the sealing ring, the exposed part of the piston rod is protected in a grease sealing way through the design of the device, and water, vapor, dust and the like are effectively separated from the piston rod, so that the piston rod can smoothly stretch and retract to enter the shock absorber cylinder, and the service life of the piston rod is prolonged.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the structure of the present utility model (omitting the return spring 11, the oil immersion cup 17);
FIG. 2 is a schematic view of the structure of the present utility model (omitting the oil immersion cup 17);
FIG. 3 is a schematic diagram showing the full section of the oil immersion cup 17 in the present utility model;
Fig. 4 is a schematic view of the oil immersion cup 17 in full section (another embodiment) in the present utility model.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Embodiments of the utility model are described in further detail below with reference to the attached drawing figures:
As shown in fig. 1 to 4, a nitrogen damper according to the present utility model includes a damper cylinder 13 and a piston rod 12 having a valve body fixed to one end thereof;
A screw 14 for connecting with a lower top plate 15 is provided outside the damper cylinder 13, an upper top plate 10 is provided at the upper end of the piston rod 12, and a damper spring 22 is abutted between the lower top plate 15 and the upper top plate 10;
One end of the piston rod 12 is inserted into the damper cylinder 13 for throttling, decelerating and damping, an oil immersion cup 17 is fixedly sleeved outside the piston rod 12 and used for wrapping the telescopic exposed part of the piston rod 12, lubricating grease is filled in the oil immersion cup 17 and used for oil sealing, and the lubricating grease is completely wrapped on one section of the exposed part of the piston rod 12 so as to be completely separated from moisture and dust, so that the smoothness of the telescopic operation of the piston rod 12 can be effectively ensured.
Preferably, an oil storage cavity 18 is provided in the oil immersion cup 17, through openings are provided at the upper and lower ends of the oil immersion cup 17 for the piston rod 12 to pass through, and sealing rings 19 which are wrapped around the outer wall of the piston rod 12 to seal are fixedly embedded in the openings, so that the grease stored in the oil storage cavity 18 is limited to be not easy to leak locally.
Preferably, a rubber ring groove 16 is provided at the upper end of the damper cylinder 13, and an O-ring 20 is fixedly provided at the lower end surface of the oil immersion cup 17, and is pressed against the rubber ring groove 16 by the oil immersion cup 17 to form a seal.
Preferably, the hydraulic oil pump further comprises a return spring 11 sleeved outside the piston rod 12, two ends of the return spring 11 respectively prop against the upper end face of the oil immersion cup 17 and the lower end face of the upper tower top pressing piece 10, and the return spring 11 is used for pressing the oil immersion cup 17 on the damper cylinder 13.
Preferably, the movable stroke distance of the piston rod 12 is not greater than the height of the oil immersion cup 17, so that the portion of the piston rod 12 that extends into the inside of the shock absorber tube 13 is also entirely protected by the grease during the full retraction stroke.
Preferably, a foaming sponge 21 is embedded in the oil immersion cup 17, the foaming sponge 21 is full of lubricating grease, and the foaming sponge 21 can reduce the use amount of the lubricating grease and reduce the cost and the weight while ensuring good lubrication.
When the shock absorber works, the part of the piston rod 12 enters and exits at the end part of the shock absorber cylinder 13, and the upper end of the shock absorber cylinder 13 is provided with a sealing ring, so that the exposed part of the piston rod 12 is protected in a grease sealing way through the design of the device, water, vapor, dust and the like are effectively separated from the piston rod 12, so that the piston rod 12 can smoothly stretch and retract into the shock absorber cylinder 13, and the service life of the piston rod 12 is prolonged.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model is not limited to the examples described in the detailed description, but rather falls within the scope of the utility model as defined by other embodiments derived from the technical solutions of the utility model by those skilled in the art.
Claims (6)
1. A nitrogen damper comprises a damper cylinder (13) and a piston rod (12) with a valve body fixed at one end; the method is characterized in that:
A screw thread (14) is arranged outside the shock absorber cylinder (13) and is used for being connected with a lower tower top pressing piece (15), an upper tower top pressing piece (10) is arranged at the upper end of the piston rod (12), and a shock absorption spring (22) is abutted between the lower tower top pressing piece (15) and the upper tower top pressing piece (10);
one end cartridge of piston rod (12) is in carry out throttle speed reduction shock attenuation in shock absorber section of thick bamboo (13) the outside suit of piston rod (12) is fixed and is equipped with one immersion oil cup (17) be used for with flexible naked part of piston rod (12) is wrapped up, and the intussuseption of immersion oil cup (17) is filled and is equipped with lubricating grease and is used for the oil seal, lubricating grease wraps up completely in the one section of the naked part of piston rod (12) makes it separate completely with moisture dust, can effectually guarantee flexible smoothness of piston rod (12).
2. A nitrogen damper according to claim 1, wherein: an oil storage cavity (18) is arranged in the oil immersion cup (17), through openings are formed in the upper end and the lower end of the oil immersion cup (17) and used for the piston rod (12) to pass through, and sealing rings (19) which are wrapped on the outer wall of the piston rod (12) to seal are fixedly embedded in the openings, so that lubricating grease stored in the Chu Youqiang (18) is limited to be difficult to leak locally.
3. A nitrogen damper according to claim 2, wherein: a rubber ring groove (16) is formed in the upper end of the shock absorber cylinder (13), and an O-shaped sealing ring (20) which is pressed on the rubber ring groove (16) by the oil immersion cup (17) to form a seal is fixedly arranged on the lower end face of the oil immersion cup (17).
4. A nitrogen damper according to claim 3, wherein: the oil immersion device is characterized by further comprising a return spring (11) sleeved outside the piston rod (12), wherein two ends of the return spring (11) respectively prop against the upper end face of the oil immersion cup (17) and the lower end face of the upper tower top pressing piece (10), and the return spring (11) is used for pressing the oil immersion cup (17) on the shock absorber cylinder (13).
5. A nitrogen damper according to claim 4, wherein: the movable travel distance of the piston rod (12) is not greater than the height of the oil immersion cup (17), so that the part of the piston rod (12) extending into the interior of the shock absorber tube (13) is also the part protected by the lubricating grease when the piston rod (12) is in the complete contraction travel.
6. A nitrogen damper according to claim 5, wherein: the oil immersion cup (17) is further embedded with a foaming sponge (21), the foaming sponge (21) is filled with lubricating grease, and the foaming sponge (21) can ensure good lubrication, reduce the use amount of the lubricating grease and reduce cost and weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323458378.XU CN221237094U (en) | 2023-12-18 | 2023-12-18 | Nitrogen shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323458378.XU CN221237094U (en) | 2023-12-18 | 2023-12-18 | Nitrogen shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221237094U true CN221237094U (en) | 2024-06-28 |
Family
ID=91600584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323458378.XU Active CN221237094U (en) | 2023-12-18 | 2023-12-18 | Nitrogen shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221237094U (en) |
-
2023
- 2023-12-18 CN CN202323458378.XU patent/CN221237094U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |