CN210068835U - Piston rod assembly of shock absorber - Google Patents
Piston rod assembly of shock absorber Download PDFInfo
- Publication number
- CN210068835U CN210068835U CN201920855517.7U CN201920855517U CN210068835U CN 210068835 U CN210068835 U CN 210068835U CN 201920855517 U CN201920855517 U CN 201920855517U CN 210068835 U CN210068835 U CN 210068835U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- valve
- adjusting
- adjusting bolt
- rod
- 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.)
- Active
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a piston rod subassembly, include: piston rod, adjusting bolt and valve needle. The piston rod is provided with at least one through hole, the adjusting bolt is installed in the piston rod, a channel is arranged in the adjusting bolt, and the channel is communicated with the through hole in the piston rod. The needle sets up in adjusting bolt's one end, and adjusting bolt's one end and valve rod fixed connection are kept away from to the needle, and the one end that the needle was kept away from to the valve rod is connected with the regulation pole, adjusts pole and piston rod threaded connection. The gap between the valve needle and the adjusting bolt is adjusted, so that the specific value of the damping force is adjusted by controlling the oil quantity, the shock absorber is adaptive to different road conditions, and the driving is more comfortable.
Description
Technical Field
The utility model relates to a vehicle parts technical field, in particular to piston rod subassembly of bumper shock absorber.
Background
In order to increase the comfort of the vehicle, the chassis system of the automobile adopts a shock absorber for shock absorption and buffering, and the shock absorber is mainly used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface. While the shock-absorbing spring can filter the vibration of the road surface when passing through the uneven road surface, the spring itself reciprocates, and the shock absorber is used for suppressing the jump, and the shock absorber depends on the damping force to suppress the jump of the spring. The damping of a common shock absorber cannot be adjusted, so that the common shock absorber cannot be well adapted to various road conditions, and a plurality of vehicle enthusiasts cannot enjoy corresponding fun.
Therefore, a shock absorber which is adaptive to different road conditions and has adjustable damping is needed, so that the driving is more comfortable.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to overcome at least one defect in the prior art, the shock absorber is suitable for different road conditions and has adjustable damping.
The utility model discloses a following technical scheme.
(II) technical scheme
As a first aspect of the utility model, the utility model discloses a piston rod assembly, include:
the piston rod is provided with at least one through hole;
the adjusting bolt is arranged in the piston rod, a channel is arranged in the adjusting bolt, and the channel is communicated with the through hole in the piston rod;
the valve needle is arranged at one end of the adjusting bolt;
one end, far away from adjusting bolt, of the valve needle is fixedly connected with a valve rod, one end, far away from valve needle, of the valve rod is connected with an adjusting rod, and the adjusting rod is in threaded connection with the piston rod.
In a possible embodiment, the end of the valve needle remote from the adjusting screw is provided with a projection.
In a possible embodiment, a spring is sleeved on the outer side wall of the valve needle, and the spring abuts against one end face of the boss.
In a possible embodiment, a groove with a regular hexagonal cross section is arranged on the end surface of the valve rod on the side away from the valve needle.
In a possible embodiment, one end of the adjustment lever is provided with a regular hexagonal prism.
In one possible embodiment, the outer circumferential surface of the valve rod on the side close to the adjusting rod is provided with an external thread.
In one possible embodiment, the piston rod assembly further comprises:
and the mounting disc end bolt is arranged in the piston rod and is provided with an internal thread and is in threaded connection with the valve rod.
In one possible embodiment, the valve rod is screwed to the valve needle.
In one possible embodiment, the piston rod assembly further comprises:
the adjusting knob seat is arranged at one end of the piston rod, and the adjusting rotating disk is fixedly connected with the adjusting rod.
As a second aspect of the present invention, the present invention also discloses a shock absorber, include:
the piston rod assembly of any one of the preceding claims.
(III) advantageous effects
The utility model discloses a piston rod subassembly of bumper shock absorber has following beneficial effect:
1. oil in the upper oil cavity and the lower oil cavity of the piston cylinder flows through the through hole in the piston rod and the channel in the adjusting bolt, so that the damping force in the piston cylinder is adjusted.
2. The spring applies a force to the valve needle towards the valve stem, urging the valve needle away from the adjusting bolt.
3. And one end of the adjusting rod is provided with a regular hexagonal prism which is matched with a groove on the valve rod, so that the adjusting rod is convenient to connect with the valve rod, and the adjusting rod drives the valve rod to rotate together when rotating.
4. Valve rod and mounting disc end bolt threaded connection, when adjusting the pole and driving the valve rod pivoted, the axis removal of valve rod is followed to the valve rod, drives the needle and keeps away from or be close to adjusting bolt, through the screw thread transmission, the distance of accurate governing valve needle displacement from top to bottom.
5. The end of the adjusting rod is provided with an adjusting knob disc, so that the adjusting rod can be rotated by hands conveniently.
Drawings
The embodiments described below with reference to the drawings are exemplary and intended to explain and illustrate the invention and should not be interpreted as limiting the scope of the invention.
Fig. 1 is a schematic three-dimensional structure diagram of a first embodiment of a piston rod assembly according to the present invention.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention.
It should be noted that: in the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some embodiments of the present invention, not all embodiments, and features in embodiments and embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the invention.
A first embodiment of a piston rod assembly of the present disclosure is described in detail below with reference to fig. 1. The embodiment is mainly applied to the shock absorbers which are adaptive to different road conditions and have adjustable damping.
As shown in fig. 1, the piston rod assembly disclosed in this embodiment mainly includes a piston rod 100, an adjusting bolt 200, a valve needle 300, a valve rod 400, and an adjusting rod 500.
The damper mainly comprises a spring and a damper, the damper comprises a piston cylinder, a piston rod assembly, an adjusting knob assembly and the like, the damping adjustment of the damper is mainly completed by the piston rod assembly and the adjusting knob assembly, and the piston rod assembly divides the piston cylinder into an upper oil cavity chamber and a lower oil cavity chamber.
The piston rod assembly comprises a piston assembly, a piston rod 100 provided with at least one through hole 110 and an adjusting bolt 200 installed in the piston rod 100, wherein a channel 210 is arranged in the adjusting bolt 200, and the channel 210 is communicated with the through hole 110 on the piston rod 100, so that oil in the upper oil chamber cavity and oil in the lower oil chamber cavity can flow mutually.
The valve needle 300 is disposed at one end of the adjusting bolt 200 for controlling the opening and closing of the channel 210 of the adjusting bolt 200, one end of the valve needle 300 away from the adjusting bolt 200 is connected to the valve rod 400, and one end of the valve rod 400 away from the valve needle 300 is connected to the adjusting rod 500 through a thread, the adjusting rod 500 rotates to drive the valve rod 400 to rotate and move along the axial direction of the piston rod 100, so that the valve needle 300 is close to or away from the end surface of the adjusting bolt 200 contacting the valve needle 300, and the number of the through holes 110 on the piston rod 100 is usually 4, and the through holes are uniformly disposed on the outer.
The specific working principle is as follows: when the valve needle 300 is far away from the end face of the adjusting bolt 200 contacted with the valve needle 300, the through hole 110 on the piston rod 100 is communicated with the channel 210 of the adjusting bolt 200, at this time, after the shock absorber is stretched, the piston rod assembly moves upwards, the volume of the upper cavity of the oil cavity is reduced, the oil pressure is increased, the oil in the upper cavity of the oil cavity flows into the lower cavity of the oil cavity by pushing the lower valve plate open by the piston in the piston assembly, and simultaneously, as the channel of the adjusting bolt 200 in the piston rod is opened, the oil flows into the channel 210 of the adjusting bolt 200 through the through hole 110 on the piston rod and then flows into the lower cavity of the; if the shock absorber is compressed, the piston rod assembly moves downwards, the volume of the lower cavity of the oil cavity is reduced, the oil pressure is increased, oil in the lower cavity of the oil cavity flows into the upper cavity of the oil cavity by pushing the upper valve plate away by the piston in the piston assembly, meanwhile, as the passage of the adjusting bolt 200 in the piston rod is opened, the oil flows into the through hole 110 in the piston rod through the passage 210 of the adjusting bolt 200 and flows into the upper cavity of the oil cavity, so that the compression damping force of the original movement is reduced, and the functions of recovering resistance and compressing resistance and adjusting the damping force simultaneously are achieved by controlling the oil quantity of the upper cavity of.
In a possible embodiment, one end of the valve needle 300 far away from the adjusting bolt 200 is provided with a boss 310, the other end is provided with a flat surface abutting the end surface of the adjusting bolt 200 and a tapered column inserted into the passage 210, the tapered column guides the valve needle 300 to move towards the passage 210, and the flat surface on the valve needle 300 makes the valve needle 300 and the end surface of the adjusting bolt 200 tightly fit to prevent oil from flowing into or flowing out of the passage 210.
In a possible embodiment, a spring 320 is sleeved on the outer side wall of the valve needle 300, one end of the spring 320 abuts against one end face of the boss 310, the other end abuts against one end face of the adjusting bolt 200 far away from the lower oil cavity, and the spring 320 applies a force to the valve needle towards the valve rod to further drive the valve needle 300 far away from the adjusting bolt 200.
In a possible embodiment, a groove 410 with a regular hexagonal cross section is formed on an end surface of the valve rod 400 on a side away from the valve needle 300, a regular hexagonal prism 510 is formed at one end of the adjusting rod 500 for connecting with the valve rod 400, the adjusting rod 500 is inserted into the groove 410, and the valve rod 400 rotates along with the adjusting rod 500.
In one possible embodiment, an outer circumferential surface of the valve stem 400 on a side close to the adjustment lever 500 is provided with an external thread, and an inner wall of the piston rod is provided with an internal thread engaged with the external thread of the valve stem 400. When the adjustment lever 500 rotates to rotate the valve rod 400 together, the valve rod 400 moves in the axial direction of the piston rod due to the threaded engagement while rotating.
In one possible embodiment, the piston rod assembly further comprises a mounting plate end bolt 600, the mounting plate end bolt 600 is disposed in the piston rod 100, the mounting plate end bolt 600 is provided with an internal thread and is in threaded connection with the valve rod 400, and the adjustment rod 500 rotates on the tight thread of the mounting plate end bolt 600 to cause the valve rod 400 to move along the axial direction of the piston rod, so that the end surface clearance between the valve needle 300 and the adjustment bolt 200 gradually decreases until the valve needle is completely closed and is in a closed state.
In one possible embodiment, the valve stem 400 is threadedly coupled to the valve needle 300 to facilitate installation and replacement of the valve needle 300.
In one possible embodiment, the piston rod assembly further comprises an adjustment knob base 700 and an adjustment rotary disk 800. The adjusting knob seat 700 is installed at one end of the piston rod 100, and the adjusting rotary plate 800 is rotated on the adjusting knob seat 700 by the adjusting lever 500.
The valve needle 300 is installed at one end of the valve stem 400 in the piston rod 100, the other end of the valve stem 400 is connected with the adjusting lever 500, and the adjusting lever 500 is connected to the adjusting knob seat 700 installed at one end of the piston cylinder, and when the adjusting rotary disk 800 is rotated, the adjusting rotary disk 800 drives the adjusting lever 500 to rotate, so that the valve needle 300 moves along the axis of the piston rod 100, the gap between the valve needle 300 and the adjusting bolt 200 is changed, and the damping force is controlled.
A first embodiment of a shock absorber according to the present disclosure is described in detail below with reference to fig. 1. The embodiment is mainly applied to the shock absorbers which are adaptive to different road conditions and have adjustable damping.
As shown in fig. 1, the present embodiment basically comprises an arrangement as described in the first embodiment of the piston rod assembly. The piston rod assembly mainly includes a piston rod 100, an adjusting bolt 200, a valve needle 300, a valve rod 400, and an adjusting lever 500.
The damper mainly comprises a spring and a damper, the damper comprises a piston cylinder, a piston rod assembly, an adjusting knob assembly and the like, the damping adjustment of the damper is mainly completed by the piston rod assembly and the adjusting knob assembly, and the piston rod assembly divides the piston cylinder into an upper oil cavity chamber and a lower oil cavity chamber.
The piston rod assembly comprises a piston assembly, a piston rod 100 provided with at least one through hole 110 and an adjusting bolt 200 installed in the piston rod 100, wherein a channel 210 is arranged in the adjusting bolt 200, and the channel 210 is communicated with the through hole 110 on the piston rod 100, so that oil in the upper oil chamber cavity and oil in the lower oil chamber cavity can flow mutually.
The valve needle 300 is disposed at one end of the adjusting bolt 200 for controlling the opening and closing of the channel 210 of the adjusting bolt 200, one end of the valve needle 300 away from the adjusting bolt 200 is connected to the valve rod 400, and one end of the valve rod 400 away from the valve needle 300 is connected to the adjusting rod 500 through a thread, the adjusting rod 500 rotates to drive the valve rod 400 to rotate and move along the axial direction of the piston rod 100, so that the valve needle 300 is close to or away from the end surface of the adjusting bolt 200 contacting the valve needle 300, and the number of the through holes 110 on the piston rod 100 is usually 4, and the through holes are uniformly disposed on the outer.
In one possible embodiment, the end of the valve needle 300 remote from the adjusting screw 200 is provided with a projection 310.
In one possible embodiment, the outer side wall of the valve needle 300 is sleeved with a spring 320, and the spring 320 abuts against one end face of the boss 310.
In one possible embodiment, a groove 410 having a regular hexagonal cross section is provided on an end surface of the valve stem 400 on a side away from the valve needle 300.
In one possible embodiment, one end of the adjustment lever 500 is provided with a regular hexagonal prism 510.
In one possible embodiment, the outer circumferential surface of the valve stem 400 on the side close to the adjustment rod 500 is provided with an external thread.
In one possible embodiment, the piston rod assembly further comprises:
mounting plate end bolt 600, mounting plate end bolt 600 sets up in piston rod 100 to mounting plate end bolt 600 is provided with the internal thread, and with valve rod 400 threaded connection.
In one possible embodiment, the valve stem 400 is threadedly connected to the valve needle 300.
In one possible embodiment, the piston rod assembly further comprises:
an adjusting knob seat 700 installed at one end of the piston rod 100, and an adjusting rotary disk 800 fixedly connected with the adjusting lever 500.
In this embodiment, the specific structures of the piston rod 100, the adjusting bolt 200, the valve needle 300, the valve rod 400, the adjusting rod 500, and the like can all refer to the structural arrangements described in the foregoing first embodiment of the piston rod assembly, and are not described in detail again.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A piston rod assembly, comprising:
the piston rod is provided with at least one through hole;
the adjusting bolt is arranged in the piston rod, a channel is arranged in the adjusting bolt, and the channel is communicated with the through hole in the piston rod;
the valve needle is arranged at one end of the adjusting bolt;
one end, far away from adjusting bolt, of the valve needle is fixedly connected with a valve rod, one end, far away from valve needle, of the valve rod is connected with an adjusting rod, and the adjusting rod is in threaded connection with the piston rod.
2. A piston rod assembly according to claim 1, characterized in that the end of the needle remote from the adjusting bolt is provided with a boss.
3. A piston rod assembly according to claim 2, characterized in that a spring is sleeved on the outer side wall of the needle, said spring abutting against an end face of said boss.
4. A piston rod assembly according to claim 1, characterized in that the end surface of the valve stem on the side remote from the valve needle is provided with a groove having a regular hexagonal cross-section.
5. A piston rod assembly according to claim 1, characterized in that one end of the adjustment rod is provided with a regular hexagonal prism.
6. The piston rod assembly of claim 1 wherein said valve stem has an external thread on an outer peripheral surface of a side thereof adjacent said adjustment stem.
7. The piston rod assembly of claim 1 further comprising:
and the mounting disc end bolt is arranged in the piston rod and is provided with an internal thread and is in threaded connection with the valve rod.
8. The piston rod assembly of claim 1 wherein said valve stem is threadably connected to said valve needle.
9. The piston rod assembly of claim 1 further comprising:
the adjusting knob seat is arranged at one end of the piston rod, and the adjusting rotating disk is fixedly connected with the adjusting rod.
10. A shock absorber, comprising:
the piston rod assembly of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855517.7U CN210068835U (en) | 2019-06-06 | 2019-06-06 | Piston rod assembly of shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855517.7U CN210068835U (en) | 2019-06-06 | 2019-06-06 | Piston rod assembly of shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068835U true CN210068835U (en) | 2020-02-14 |
Family
ID=69456880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920855517.7U Active CN210068835U (en) | 2019-06-06 | 2019-06-06 | Piston rod assembly of shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068835U (en) |
-
2019
- 2019-06-06 CN CN201920855517.7U patent/CN210068835U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210339597A1 (en) | Adjustable blow-off suspension | |
| US20070034464A1 (en) | Magnetic valve for shock absorbers | |
| US20070144845A1 (en) | Wheel suspension for vehicle | |
| KR101772832B1 (en) | Shock absorber | |
| CN107289058B (en) | A kind of damper damping regulating valve | |
| CN110319142A (en) | A kind of piston valve of self-adaptive damping damper | |
| US20070144848A1 (en) | Hydraulic damper for vehicle | |
| CN114046332B (en) | Independent exhaust pressure release's shock absorber | |
| CN201401476Y (en) | Variable throttle valve of vibration absorber | |
| CN210068835U (en) | Piston rod assembly of shock absorber | |
| CN109114155A (en) | A kind of air spring damping device of high sealing performance | |
| CN111720471A (en) | Piston rod assembly of shock absorber | |
| JP2004324817A (en) | Valve structure of hydraulic buffer for vehicle | |
| CN102358131A (en) | Semi-active suspension frame for tractor | |
| CN210565981U (en) | Shock absorber and adjusting knob subassembly | |
| CN210318311U (en) | Damping adjustment electromagnetic control valve for shock absorber | |
| CN210510093U (en) | Damper with adjustable hydraulic compression limiting mechanism | |
| CN108775369B (en) | Shock absorber and vehicle with same | |
| CN111734771A (en) | Adjusting knob assembly of shock absorber | |
| CN106838097A (en) | Automobile and its ECU, suspension system, spring damper, control system | |
| CN216242007U (en) | Damping-adjustable shock absorber | |
| CN219989430U (en) | Front fork shock-absorbing buffer structure of electric tricycle awning | |
| CN220816377U (en) | Shock absorber with inner spring and outer spring | |
| CN211423252U (en) | Resistance-adjustable shock absorber | |
| CN213145285U (en) | Plug valve driver shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |