CN217653135U - Double-air-chamber automobile shock absorber - Google Patents
Double-air-chamber automobile shock absorber Download PDFInfo
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- CN217653135U CN217653135U CN202221801861.6U CN202221801861U CN217653135U CN 217653135 U CN217653135 U CN 217653135U CN 202221801861 U CN202221801861 U CN 202221801861U CN 217653135 U CN217653135 U CN 217653135U
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Abstract
The utility model belongs to the bumper shock absorber field specifically relates to a double air chamber automobile shock absorber ware, the novel nipple rectifier comprises a cylindrical shel, the damping piston, piston rod and two isolation pistons, damping piston and two isolation pistons all slide and set up in the barrel, two isolation pistons set up respectively in the damping piston both sides, three cavity is separated with the barrel to two isolation pistons, be the air cavity at the oil storage room and both ends of interlude respectively, piston rod one end and damping piston fixed connection, the other end passes one of them isolation piston and barrel tip setting, and piston rod and this isolation piston and barrel tip sliding fit, the utility model discloses two isolation pistons all slide and set up in the barrel for the volume of air chamber and oil storage room all can produce the change through the removal of piston, when making the piston rod reciprocate at drive damping piston, extrude two upper and lower air chambers respectively, cushion the damping piston, improve the whole buffering effect of two direction movements of automobile shock absorber damping piston.
Description
Technical Field
The utility model belongs to the bumper shock absorber field specifically is to a double air chamber automobile shock absorber ware is related to.
Background
In order to quickly attenuate the vibration of a frame and a vehicle body and improve the smoothness and comfort of the running of an automobile, a shock absorber is generally arranged on an automobile suspension system, and a bidirectional barrel type shock absorber is widely adopted on the automobile.
The existing automobile shock absorber generally adopts the mode that oil is injected into a cylinder body, the buffer shock absorption effect is realized by arranging an overflow valve on a damping piston, and an air chamber is further arranged for auxiliary buffer.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a double air chamber automobile shock absorber ware that buffering effect is good.
The utility model discloses an content includes the barrel, the damping piston, piston rod and two isolation pistons, the equal slip setting of damping piston and two isolation pistons is in the barrel, two isolation pistons set up respectively in the damping piston both sides, three cavity is separated with the barrel to two isolation pistons, be the air cavity at the oil storage room of interlude and both ends respectively, piston rod one end and damping piston fixed connection, the other end passes one of them isolation piston and barrel tip setting, and piston rod and this isolation piston and barrel tip sliding fit.
Furthermore, the two isolation pistons are respectively a first isolation piston and a second isolation piston, the piston rod is in sliding fit with the first isolation piston, the isolation piston further comprises a positioning rod fixedly arranged at the end part of the cylinder body deviating from the first isolation piston, and the second isolation piston is arranged on the positioning rod in a sliding manner.
Furthermore, the first isolation piston and the second isolation piston are of circular ring structures, a sealing ring is arranged between the outer ring of the first isolation piston and the outer ring of the second isolation piston and the inner wall of the cylinder body, a sealing ring is arranged between the inner ring of the first isolation piston and the piston rod, and a sealing ring is arranged between the second isolation piston and the positioning rod.
Still further, the positioning rod is coaxially arranged with the piston rod.
Further, the initial volumes of the two air chambers coincide.
Furthermore, the damping piston is provided with two oil inlet channels which penetrate through two ends of the damping piston, and the damping piston further comprises overflow valves which are respectively arranged on different sides of the two oil inlet channels.
Furthermore, the piston rod extends out of the cylinder body and is integrally formed with a connecting piece.
Furthermore, one side of the barrel, which is far away from the connecting piece, is provided with a first limiting ring, a reset spring is abutted between the connecting piece and the first limiting ring, and the reset spring is sleeved outside the barrel.
Furthermore, the first limiting ring is in threaded connection with the barrel, the barrel further comprises a second limiting ring in threaded connection with the barrel, and the second limiting ring is abutted against the first limiting ring.
Furthermore, the cylinder body is of a structure with an opening on one side, a sealing cover is arranged at the opening, and the piston rod is in sliding fit with the sealing cover.
The beneficial effects of the utility model are that, the utility model discloses a slip in the both sides of barrel damping piston sets up two isolation pistons, and separate the barrel for two air chambers in both ends and middle oil storage chamber through two isolation pistons, two isolation piston all slide and set up in the barrel, make the volume of air chamber and oil storage chamber all to produce the change through the removal of piston, make the piston rod when driving damping piston and reciprocate, extrude two upper and lower air chambers respectively, cushion damping piston, improve the whole buffering effect of two direction removals of automobile shock absorber damping piston, automobile shock absorber ware for present unilateral air chamber, when damping piston one-way movement, deformation can take place for two air chambers homoenergetic, be convenient for the air chamber to damping piston's buffering.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
In the figure, 1, a cylinder; 2. a sealing cover; 3. a piston rod; 4. a connecting member; 5. a first limit ring; 6. a second stop collar; 7. a return spring; 8. a damping piston; 9. a first isolation piston; 10. a second isolation piston; 11. positioning a rod; 12. an oil inlet channel; 13. an overflow valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
As shown in the attached drawing 1-2, the utility model discloses a barrel 1, damping piston 8, piston rod 3 and two isolation pistons, damping piston 8 and two isolation pistons all slide to set up in barrel 1, two isolation pistons set up respectively in damping piston 8 both sides, two isolation pistons separate three cavity with barrel 1, be the air cavity at the oil storage room of interlude and both ends respectively, 3 one ends of piston rod and 8 fixed connection of damping piston, the other end passes one of them isolation piston and 1 tip setting of barrel, and piston rod 3 and this isolation piston and 1 tip sliding fit of barrel.
The utility model discloses a slip in barrel 1 damping piston 8's both sides sets up two isolation pistons, and separate barrel 1 for two air chambers in both ends and middle oil storage chamber through two isolation pistons, two isolation pistons all slide and set up in barrel 1, make the volume of air chamber and oil storage chamber all can produce the change through piston 8's removal, make piston rod 3 when driving damping piston 8 and reciprocate, extrude two upper and lower air chambers respectively, cushion damping piston 8, improve the whole buffering effect that two directions of automobile shock absorber damping piston 8 removed, automobile shock absorber ware for present unilateral air chamber, when damping piston 8 unidirectional movement, deformation can take place for two air chambers homoenergetic (the air chamber extrusion volume of damping piston 8 removal direction front end diminishes, the tensile volume grow of another air chamber, the volume of oil storage chamber can not produce the change or produce less change), be convenient for the buffering of air chamber to the damping piston.
In one of them embodiment, two keep apart the piston and be first isolation piston 9 and second isolation piston 10 respectively, piston rod 3 and first isolation piston 9 sliding fit still include fixed setting and deviate from the locating lever 11 of first isolation piston 9 tip at barrel 1, second isolation piston 10 slides and sets up on locating lever 11, and in this embodiment, two keep apart the piston and slide the setting in barrel 1 through piston rod 3 and locating lever 11 direction respectively, and two pistons can only follow the reciprocal linear motion of the axis of barrel 1, avoid two isolation pistons to appear askedly leading to air chamber and oil storage chamber to reveal each other and disturb in barrel 1 inside, improve two stability of keeping apart the piston.
In this embodiment, first isolation piston 9 and second isolation piston 10 are the ring structure, be provided with the sealing washer between first isolation piston 9 and second isolation piston 10's outer lane and the barrel 1 inner wall, be provided with the sealing washer between the inner circle of first isolation piston 9 and the piston rod 3, be provided with the sealing washer between second isolation piston 10 and the locating lever 11, be through the sealing washer keep apart the piston and barrel 1, piston rod 3 and locating lever 11 between sliding seal cooperation, avoid the interior oil liquid of oil storage chamber to flow into the air chamber, improve the isolation of air chamber and oil storage chamber.
The positioning rod 11 and the piston rod 3 are coaxially arranged, so that when the piston rod 3 is positioned at a lower limit stroke, the damping piston 8 can be abutted against the positioning rod 11, the positioning rod 11 plays a limiting role, and meanwhile, the positioning rod 11 and the piston rod 3 are coaxially arranged, so that the moving conditions and the moving effects of the two isolation pistons can be consistent.
The initial volumes of the two air chambers are consistent, so that the air chambers have consistent buffering effect on the movement of the damping piston 8 when the damping piston 8 moves upwards or downwards in the initial state.
In one embodiment, the damping piston 8 is provided with two oil inlet channels 12 penetrating through two ends of the damping piston 8, and further comprises overflow valves 13 respectively arranged on different sides of the two oil inlet channels 12, in the embodiment, the damping piston 8 extrudes oil in the oil storage chamber through the one-way oil inlet channels 12 and the overflow valves 13 in the up-and-down moving process, so that the shock absorption and buffering of the shock absorber are realized.
In one embodiment, the piston rod 3 extends out of the cylinder 1 and is integrally formed with the connecting piece 4, and compared with the traditional welding connection mode, the integrally formed connecting piece 4 has better connection strength and is not easy to break.
In one embodiment, the first limiting ring 5 is arranged on one side, away from the connecting piece 4, of the barrel 1, the reset spring 7 is abutted between the connecting piece 4 and the first limiting ring 5, and the reset spring 7 is sleeved on the outer side of the barrel 1.
The first limiting ring 5 is in threaded connection with the barrel body 1, and the device further comprises a second limiting ring 6 in threaded connection with the barrel body 1, the second limiting ring 6 is abutted against the first limiting ring 5, and the first limiting ring 5 is in threaded connection with the barrel body 1, so that the mounting of the reset spring 7 and the initial pre-pressure of the reset spring 7 can be conveniently adjusted. Through setting up second spacing ring 6, after adjusting reset spring 7's position, effectively avoid first spacing ring 5's removal, guarantee stability.
In one embodiment, the cylinder 1 is of a structure with an opening at one side, the opening is provided with a sealing cover 2, the piston rod 3 is in sliding fit with the sealing cover 2, and the sealing cover 2 is arranged, so that two isolation pistons and a damping piston 8 can be conveniently arranged in the cylinder 1.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (10)
1. The utility model provides a double air chamber automobile shock absorber ware, which is characterized by, including barrel (1), damping piston (8), piston rod (3) and two isolation pistons, damping piston (8) and two isolation pistons all slide and set up in barrel (1), two isolation pistons set up respectively in damping piston (8) both sides, three cavity is separated with barrel (1) to two isolation pistons, be the oil storage chamber of interlude and the air cavity at both ends respectively, piston rod (3) one end and damping piston (8) fixed connection, the other end passes one of them isolation piston and barrel (1) tip setting, and piston rod (3) and this isolation piston and barrel (1) tip sliding fit.
2. The double-air-chamber automobile shock absorber as claimed in claim 1, wherein the two isolation pistons are respectively a first isolation piston (9) and a second isolation piston (10), the piston rod (3) is in sliding fit with the first isolation piston (9), the shock absorber further comprises a positioning rod (11) fixedly arranged at the end part of the cylinder body (1) away from the first isolation piston (9), and the second isolation piston (10) is arranged on the positioning rod (11) in a sliding manner.
3. The double-air-chamber automobile shock absorber as claimed in claim 2, wherein the first isolation piston (9) and the second isolation piston (10) are of a circular ring structure, a sealing ring is arranged between the outer ring of the first isolation piston (9) and the outer ring of the second isolation piston (10) and the inner wall of the cylinder body (1), a sealing ring is arranged between the inner ring of the first isolation piston (9) and the piston rod (3), and a sealing ring is arranged between the second isolation piston (10) and the positioning rod (11).
4. A double-chamber shock absorber for vehicles as claimed in claim 3, wherein said positioning rod (11) is arranged coaxially with said piston rod (3).
5. A double chamber automobile shock absorber as claimed in claim 1 wherein the initial volumes of both said air chambers are the same.
6. The shock absorber of one of claims 1 to 5, wherein the damping piston (8) is provided with two oil inlet channels (12) extending through both ends of the damping piston (8), and further comprising relief valves (13) respectively provided on different sides of the two oil inlet channels (12).
7. The double-chamber automobile shock absorber of any one of claims 1-5, wherein the piston rod (3) is integrally formed with a connecting member (4) extending outside the cylinder (1).
8. The double-air-chamber automobile shock absorber of claim 7, wherein a first limiting ring (5) is arranged on one side of the cylinder body (1) away from the connecting piece (4), a return spring (7) is abutted between the connecting piece (4) and the first limiting ring (5), and the return spring (7) is sleeved on the outer side of the cylinder body (1).
9. The double-air-chamber automobile shock absorber of claim 8, wherein the first limit ring (5) is in threaded connection with the cylinder body (1), and further comprising a second limit ring (6) in threaded connection with the cylinder body (1), the second limit ring (6) abutting against the first limit ring (5).
10. The double-air-chamber automobile shock absorber as claimed in claim 8, wherein the cylinder (1) is of a structure with an opening at one side, the opening is provided with a sealing cover (2), and the piston rod (3) is in sliding fit with the sealing cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801861.6U CN217653135U (en) | 2022-07-13 | 2022-07-13 | Double-air-chamber automobile shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801861.6U CN217653135U (en) | 2022-07-13 | 2022-07-13 | Double-air-chamber automobile shock absorber |
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| Publication Number | Publication Date |
|---|---|
| CN217653135U true CN217653135U (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221801861.6U Active CN217653135U (en) | 2022-07-13 | 2022-07-13 | Double-air-chamber automobile shock absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066504A (en) * | 2022-11-28 | 2023-05-05 | 江苏科彦汽车配件有限公司 | Single-cylinder type damping-adjustable motor vehicle shock absorber |
-
2022
- 2022-07-13 CN CN202221801861.6U patent/CN217653135U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066504A (en) * | 2022-11-28 | 2023-05-05 | 江苏科彦汽车配件有限公司 | Single-cylinder type damping-adjustable motor vehicle shock absorber |
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