CN214578529U - Miniature fixed damping force buffer - Google Patents
Miniature fixed damping force buffer Download PDFInfo
- Publication number
- CN214578529U CN214578529U CN202120588285.0U CN202120588285U CN214578529U CN 214578529 U CN214578529 U CN 214578529U CN 202120588285 U CN202120588285 U CN 202120588285U CN 214578529 U CN214578529 U CN 214578529U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- cylinder body
- damping force
- inner cavity
- ring
- 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 relates to a miniature fixed damping force buffer, include: the device comprises a cylinder body, an end seat, a base, an installation bearing block, a foam energy accumulator and a piston rod; the top end of the piston rod is provided with a limiting flange and a clamping ring, the outer diameter of the limiting flange is smaller than the inner diameter of the cylinder body; the inner cavity of the cylinder body is divided into a first inner cavity close to one side of the mounting bearing block and a second inner cavity close to the base by a limiting flange; the top end of the piston rod is provided with a blind hole with axial depth, and the side wall of the piston rod is provided with a throttling hole communicated with the first inner cavity and the blind hole; the piston ring is sleeved in the cylinder body in a sliding manner; the piston ring has an axial limiting stroke and is axially and movably limited between the limiting flange and the clamping ring; an oil passing hole communicated with the second inner cavity and the blind hole is further formed in the side wall of the piston rod and is located between the limiting flange and the clamping ring, and a radial gap is formed between the piston ring and the piston rod; and an energy storage spring. The miniature fixed damping force buffer with the structure has a simple structure, is stable and durable, and is suitable for small and micro application scenes.
Description
Technical Field
The utility model relates to a miniature fixed damping force buffer belongs to hydraulic pressure and equips technical field, is particularly useful for little micro equipment field.
Background
The hydraulic miniature fixed damping force buffer is widely applied to the field of automatic intelligent manufacturing. With the continuous development of China in the high-end manufacturing field of semiconductors and the like, the requirements and the demands for small and miniaturized buffers are more and more. The throttle hole and the check valve of the conventional micro-fixed damping force damper are generally designed on the piston head, because the piston head is complicated in position structure, and the stability and durability are yet to be improved, thereby limiting the development of the micro-size direction. Therefore, there is a need for improvement and redesign.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a miniature fixed damping force buffer, its simple structure, it is firm durable, applicable in the scene of using a little.
A miniature fixed damping force snubber comprising:
the device comprises a cylinder body, wherein end seats and a base are fixedly and hermetically arranged at two ends of the cylinder body, an installation bearing block is fixedly sleeved in the cylinder body, and a foam energy accumulator is nested between the outer wall of the installation bearing block and the inner wall of the cylinder body;
the piston rod is sleeved in the mounting bearing block in a sliding and sealing manner, and the bottom end of the piston rod penetrates through the end seat in a sliding manner and extends out of the end seat; the top end of the piston rod is provided with a limiting flange and a clamping ring, the outer diameter of the limiting flange is smaller than the inner diameter of the cylinder body; the inner cavity of the cylinder body is divided into a first inner cavity close to one side of the mounting bearing block and a second inner cavity close to the base by the limiting flange; the top end of the piston rod is provided with a blind hole with axial depth, and the side wall of the piston rod is provided with a throttling hole for communicating the first inner cavity with the blind hole;
the piston ring is sleeved in the cylinder body in a sliding manner; the piston ring has an axial limiting stroke and is axially and movably limited between the limiting flange and the clamping ring; an oil passing hole communicated with the second inner cavity and the blind hole is further formed in the side wall of the piston rod and is located between the limiting flange and the clamping ring, and a radial gap is formed between the piston ring and the piston rod; and
and one end of the energy storage spring is abutted against the bottom of the blind hole, and the other end of the energy storage spring is fixedly connected to the base.
According to the utility model discloses a preferred embodiment, the piston rod compression energy storage spring, the piston ring blocks up limit flange with first clearance between the cylinder body, the piston ring is opened the snap ring with second clearance between the cylinder body is located hydraulic oil warp in the second inner chamber the second clearance the oil hole reaches the oral area of blind hole, warp again the orifice flow direction first inner chamber. When the piston rod compresses, the throttling hole is used as the last link of the flow path, the aperture size of the throttling hole plays a decisive role in the damping force, and different apertures can be arranged according to requirements so as to obtain different damping forces.
The blind hole can accommodate an energy storage spring, and meanwhile, the effect of serving as an excitation pipeline can be achieved on internal hydraulic oil, so that the buffering function of the whole device is enhanced.
According to the utility model discloses a preferred embodiment, the piston rod is tensile energy storage spring, the piston ring blocks up the snap ring with second clearance between the cylinder body, the piston ring is opened limit flange with first clearance between the cylinder body is located hydraulic oil warp in the first inner chamber the orifice reaches first clearance the oilhole flow direction the oral area of blind hole flows in the second inner chamber.
According to the utility model discloses a preferred embodiment, in order to strengthen sealed, the end seat with it is equipped with Y type sealing washer still to overlap between the installation bearing piece.
According to the utility model discloses a preferred embodiment, the outer wall of installation bearing piece is equipped with and holds the recess of the cotton energy storage ware of bubble, the recess with first inner chamber intercommunication, be used for making the cotton energy storage ware buffering energy storage hydraulic oil of bubble. The mode that recess and first inner chamber communicate has the multiple, can set up a plurality of intercommunicating pores through the unilateral, perhaps offers the form of bucket groove etc. and no longer gives details.
According to the utility model discloses a preferred embodiment, for reinforcing stability, simplify the structure, the end seat with cylinder body interference fit is sealed fixed, the base with cylinder body screw-thread fit is sealed fixed.
According to the utility model discloses a preferred embodiment, for reinforcing stability, simplify the structure, the base adopts the end cap of taking top.
According to the utility model discloses a preferred embodiment, in order to strengthen sealed, the base with still be equipped with O type sealing washer between the cylinder body.
According to the utility model discloses a preferred embodiment, for reinforcing stability, simplify the structure, the piston rod with limit flange integral type shaping.
On the basis of the common knowledge in the field, the above preferred embodiments can be combined at will to obtain the preferred embodiments of the present invention.
A miniature fixed damping force buffer, include: the device comprises a cylinder body, wherein end seats and a base are fixedly and hermetically arranged at two ends of the cylinder body, an installation bearing block is fixedly sleeved in the cylinder body, and a foam energy accumulator is nested between the outer wall of the installation bearing block and the inner wall of the cylinder body; the piston rod is arranged in the mounting bearing block in a sliding sealing manner, and the bottom end of the piston rod penetrates through the mounting bearing block in a sliding manner and extends out of the end seat; the top end of the piston rod is provided with a limiting flange and a clamping ring, the outer diameter of the limiting flange is smaller than the inner diameter of the cylinder body; the inner cavity of the cylinder body is divided into a first inner cavity close to one side of the mounting bearing block and a second inner cavity close to the base by a limiting flange; the top end of the piston rod is provided with a blind hole with axial depth, and the side wall of the piston rod is provided with a throttling hole communicated with the first inner cavity and the blind hole; the piston ring is sleeved in the cylinder body in a sliding manner; the piston ring has an axial limiting stroke and is axially and movably limited between the limiting flange and the clamping ring; an oil passing hole communicated with the second inner cavity and the blind hole is further formed in the side wall of the piston rod and is located between the limiting flange and the clamping ring, and a radial gap is formed between the piston ring and the piston rod; and one end of the energy storage spring is propped against the bottom of the blind hole, and the other end of the energy storage spring is fixedly connected to the base. The piston rod is provided with the throttling hole and the oil passing hole, so that the space and the cost of the traditional structure which needs to be provided with the throttling hole and the one-way valve on the piston head are saved, and the buffer provides different damping forces when the piston rod is compressed through the design of the throttling holes with different sizes on the piston rod. The miniature fixed damping force buffer with the structure has a simple structure, is stable and durable, and is suitable for small and micro application scenes.
For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not to scale.
Drawings
For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not to scale.
Fig. 1 is a schematic structural view of a micro fixed damping force buffer according to a preferred embodiment of the present invention when a piston rod is compressed;
fig. 2 is a schematic structural view of a micro fixed damping force buffer according to a preferred embodiment of the present invention when a piston rod is stretched.
Description of reference numerals:
a cylinder body 1; an end seat 2; a base 3; a bearing block 4 is installed; a groove 4 a; a foam accumulator 5; a piston rod 6; a position-limiting flange 7; a snap ring 8; a first inner cavity 9 a; a second inner cavity 9 b; a blind hole 10; an orifice 11; a piston ring 12; an oil passing hole 13; an energy storage spring 14; a first gap 15; a second gap 16; a Y-shaped seal ring 17; an O-ring 18.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. Reference will now be made in detail to the preferred embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following preferred embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely preferred embodiments of the device and method in accordance with aspects of the invention as detailed in the appended claims, on the basis of which other ways of implementing the invention may be conceived by those skilled in the art, which likewise fall within the scope of the invention. In the following detailed description, directional terms, such as "upper", "lower", "inner", "outer", "longitudinal", "lateral", and the like, are used with reference to the orientation depicted in the accompanying drawings. The components of embodiments of the present invention can be positioned in a variety of orientations, and the directional terminology is used for purposes of illustration and is in no way limiting.
As shown in fig. 1 and 2, a micro fixed damping force damper includes: the cylinder comprises a cylinder body 1, wherein end seats 2 and a base 3 are fixedly and hermetically arranged at two ends of the cylinder body 1, a mounting bearing block 4 is fixedly sleeved in the cylinder body 1, and a foam energy accumulator 5 is further nested between the outer wall of the mounting bearing block 4 and the inner wall of the cylinder body 1; the piston rod 6 is sleeved in the mounting bearing block 4 in a sliding and sealing manner, and the bottom end of the piston rod 6 penetrates through and extends out of the end seat 2 in a sliding manner; the top end of the piston rod 6 is provided with a limiting flange 7 and a clamping ring 8, the outer diameter of the limiting flange is smaller than the inner diameter of the cylinder body 1; the inner cavity of the cylinder body 1 is divided into a first inner cavity 9a close to one side of the mounting bearing block 4 and a second inner cavity 9b close to the base 3 by the limiting flange 7; the top end of the piston rod 6 is provided with a blind hole 10 with axial depth, and the side wall of the piston rod 6 is provided with a throttling hole 11 communicating the first inner cavity 9a with the blind hole 10; the piston ring 12 is sleeved in the cylinder 1 in a sliding manner; the piston ring 12 has an axial limit stroke and is axially movably limited between the limit flange 7 and the snap ring 8; an oil passing hole 13 communicated with the second inner cavity 9b and the blind hole 10 is further formed in the side wall of the piston rod 6, the oil passing hole 13 is located between the limiting flange 7 and the snap ring 8, and a radial gap is formed between the piston ring 12 and the piston rod 6; and one end of the energy storage spring 14 is abutted against the bottom of the blind hole 10, and the other end of the energy storage spring 14 is fixedly connected to the base 3.
Combine fig. 1 to show, according to the utility model discloses, piston rod 6 compresses energy storage spring 14, piston ring 12 blocks up limit flange 7 with first clearance 15 between the cylinder body 1, piston ring 12 is opened snap ring 8 with second clearance 16 between the cylinder body 1 is located hydraulic oil warp in the second inner chamber 9b second clearance 16 cross oilhole 13 and the oral area of blind hole 10, warp again orifice 11 flows to first inner chamber 9 a.
With reference to fig. 2, according to the utility model discloses, piston rod 6 is tensile energy storage spring 14, piston ring 12 blocks up snap ring 8 with second clearance 16 between the cylinder body 1, piston ring 12 is opened limit flange 7 with first clearance 15 between the cylinder body 1 is located hydraulic oil warp in the first inner chamber 9a orifice 11 reaches first clearance 15 cross oilhole 13 flow direction the oral area of blind hole 10 flows in second inner chamber 9 b.
According to the utility model discloses the end socket 2 with it is equipped with Y type sealing washer 17 still to overlap between installation bearing piece 4. The outer wall of the mounting bearing block 4 is provided with a groove 4a for accommodating the foam energy accumulator 5, and the groove 4a is communicated with the first inner cavity 9a so as to enable the foam energy accumulator 5 to buffer and store energy hydraulic oil. The end seat 2 is in interference fit, sealed and fixed with the cylinder body 1, and the base 3 is in threaded fit, sealed and fixed with the cylinder body 1. The base 3 adopts a plug with a tip. An O-shaped sealing ring 18 is further arranged between the base 3 and the cylinder body 1.
According to the utility model discloses, piston rod 6 with 7 integral type shaping of limit flange.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims. The above description is only for the purpose of illustrating embodiments of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made by those skilled in the art within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A miniature fixed damping force snubber, comprising:
the device comprises a cylinder body, wherein end seats and a base are fixedly and hermetically arranged at two ends of the cylinder body, an installation bearing block is fixedly sleeved in the cylinder body, and a foam energy accumulator is nested between the outer wall of the installation bearing block and the inner wall of the cylinder body;
the piston rod is sleeved in the mounting bearing block in a sliding and sealing manner, and the bottom end of the piston rod penetrates through the end seat in a sliding manner and extends out of the end seat; the top end of the piston rod is provided with a limiting flange and a clamping ring, the outer diameter of the limiting flange is smaller than the inner diameter of the cylinder body; the inner cavity of the cylinder body is divided into a first inner cavity close to one side of the mounting bearing block and a second inner cavity close to the base by the limiting flange; the top end of the piston rod is provided with a blind hole with axial depth, and the side wall of the piston rod is provided with a throttling hole for communicating the first inner cavity with the blind hole;
the piston ring is sleeved in the cylinder body in a sliding manner; the piston ring has an axial limiting stroke and is axially and movably limited between the limiting flange and the clamping ring; an oil passing hole communicated with the second inner cavity and the blind hole is further formed in the side wall of the piston rod and is located between the limiting flange and the clamping ring, and a radial gap is formed between the piston ring and the piston rod; and
and one end of the energy storage spring is abutted against the bottom of the blind hole, and the other end of the energy storage spring is fixedly connected to the base.
2. The miniature fixed damping force snubber of claim 1, wherein said piston rod compresses said energy storage spring, said piston ring blocks a first gap between said limit flange and said cylinder block, said piston ring opens a second gap between said snap ring and said cylinder block, and hydraulic oil in said second cavity flows through said second gap, said oil passing hole and said opening of said blind hole, and then flows through said orifice hole to said first cavity.
3. The miniature fixed damping force snubber of claim 1, wherein said piston rod stretches said stored energy spring, said piston ring blocks a second gap between said snap ring and said cylinder block, said piston ring opens a first gap between said limit flange and said cylinder block, and hydraulic oil located in said first internal chamber flows through said orifice hole and said first gap, said oil through hole to a mouth of said blind hole, and flows into said second internal chamber.
4. The miniature fixed damping force snubber of claim 1, wherein a Y-ring seal is further interposed between said end mount and said mounting bearing block.
5. The miniature fixed damping force snubber of claim 1, wherein the outer wall of the mounting bearing block is provided with a groove for receiving the foam accumulator, the groove communicating with the first inner cavity for allowing the foam accumulator to buffer stored hydraulic oil.
6. The miniature fixed damping force snubber of claim 1, wherein the end seat is sealingly secured in interference fit with the cylinder and the base is sealingly secured in threaded fit with the cylinder.
7. The miniature fixed damping force snubber of claim 6, wherein the base employs a dead end with a tip.
8. The miniature fixed damping force snubber of claim 6, further including an O-ring seal between said base and said cylinder.
9. The miniature fixed damping force snubber of claim 1, wherein the piston rod is integrally formed with the limit flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120588285.0U CN214578529U (en) | 2021-03-23 | 2021-03-23 | Miniature fixed damping force buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120588285.0U CN214578529U (en) | 2021-03-23 | 2021-03-23 | Miniature fixed damping force buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578529U true CN214578529U (en) | 2021-11-02 |
Family
ID=78321136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120588285.0U Active CN214578529U (en) | 2021-03-23 | 2021-03-23 | Miniature fixed damping force buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931274A (en) * | 2022-12-27 | 2023-04-07 | 无锡比德希减震阻尼技术有限公司 | Buffer waveform generator for child seat side collision test system |
-
2021
- 2021-03-23 CN CN202120588285.0U patent/CN214578529U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931274A (en) * | 2022-12-27 | 2023-04-07 | 无锡比德希减震阻尼技术有限公司 | Buffer waveform generator for child seat side collision test system |
| CN115931274B (en) * | 2022-12-27 | 2024-04-12 | 无锡比德希减震阻尼技术有限公司 | Buffer waveform generator for child seat side collision test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106122343B (en) | A kind of inversion type front damping device for motorcycle | |
| CN214578529U (en) | Miniature fixed damping force buffer | |
| CN206626211U (en) | Circulation hydraulic damping device in a kind of | |
| CN212564196U (en) | Pneumatic adjustable damping shock absorber for vehicle | |
| CN209654350U (en) | A kind of piston type buffering hydraulic oil cylinder | |
| CN109058208B (en) | Buffer overflow valve | |
| CN111236781A (en) | Damper structure for furniture | |
| CN214533796U (en) | Single-acting oil cylinder with exhaust function and capable of balancing underwater environment pressure | |
| CN108488297A (en) | A kind of hydro-pneumatic spring | |
| CN208816583U (en) | A kind of hydro-pneumatic spring | |
| CN210978332U (en) | Gas spring viscous damper | |
| CN201771885U (en) | Integral hydraulic oil cylinder | |
| CN219809333U (en) | Gas spring buffer device | |
| JP5106347B2 (en) | Hydraulic buffer | |
| CN214578526U (en) | Hydraulic damping type bidirectional fixed speed controller | |
| CN216789089U (en) | Novel oil pressure shock absorber check valve piston assembly | |
| CN218953907U (en) | Two-section force damper | |
| CN201908985U (en) | Hydraulic buffer of on-off semi-active suspension system | |
| CN104421367A (en) | Extension tail end buffer type lockable air spring | |
| CN207795719U (en) | A kind of two body separation balanced valve | |
| CN214578540U (en) | Hydraulic buffer mechanism and hydraulic shock absorber | |
| CN216343623U (en) | Hydraulic shock absorber with rectangular hole on valve core | |
| CN209196030U (en) | A kind of shock absorber for vehicle | |
| CN219013246U (en) | Shock absorber assembly and vehicle with same | |
| CN202158036U (en) | Buffering structure for hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |