CN223938543U - A buffer - Google Patents
A bufferInfo
- Publication number
- CN223938543U CN223938543U CN202520481390.2U CN202520481390U CN223938543U CN 223938543 U CN223938543 U CN 223938543U CN 202520481390 U CN202520481390 U CN 202520481390U CN 223938543 U CN223938543 U CN 223938543U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cavity
- piston
- annular
- elastic sleeve
- 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
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
本实用新型提供了一种缓冲器，其包括:缸体、活塞、活塞杆和弹性套;所述弹性套包括一体成型设置的外筒部和内筒部；所述外筒部与所述缸体内侧壁之间合围出一个环形气室；环形气室通过气路与所述缸体外部连通；所述内筒部设置在所述外筒部内部；内筒部中间设置有通孔；活塞杆一端与所述活塞固定连接，活塞杆另外一端依次插入外筒部内以及所述通孔后伸出所述缸体外部；所述活塞杆与内筒部的通孔之间密封连接。本实用新型通过增设内筒部，内筒部与活塞杆之间密封连接，在轴向上，大大延长了活塞杆与弹性套之间的密封结构，即使长时间运行，粘性液体也不会经活塞杆与弹性套之间的间隙泄露出去，提高了整个部件的密封性和可靠性。
This invention provides a damper, comprising: a cylinder, a piston, a piston rod, and an elastic sleeve; the elastic sleeve includes an integrally formed outer cylinder and an inner cylinder; an annular air chamber is formed between the outer cylinder and the inner wall of the cylinder; the annular air chamber communicates with the outside of the cylinder through an air passage; the inner cylinder is disposed inside the outer cylinder; a through hole is provided in the middle of the inner cylinder; one end of the piston rod is fixedly connected to the piston, and the other end of the piston rod is inserted into the outer cylinder and then through the through hole before extending out of the cylinder; the piston rod is sealed to the through hole of the inner cylinder. By adding an inner cylinder and sealing the piston rod, this invention significantly extends the sealing structure between the piston rod and the elastic sleeve axially, preventing viscous liquid from leaking out through the gap between the piston rod and the elastic sleeve even during long-term operation, thus improving the overall sealing performance and reliability of the component.
Description
Technical Field
The utility model relates to the technical field of damping parts, in particular to a buffer.
Background
Conventionally, a conventional damper generally includes a cylinder and a guide rod, and a valve plate is provided at a head portion of the guide rod, and a flow passage for communicating liquid between a pressure chamber side and a non-pressure chamber side is opened and closed by movement of the valve plate. However, the existing buffer has low tightness and reliability, and is easy to leak after long-time working, so that the components cannot work normally.
Disclosure of utility model
The present utility model is directed to a buffer, which solves at least one of the above-mentioned problems in the prior art.
In order to solve the technical problems, the buffer provided by the utility model comprises a cylinder body, a piston rod and an elastic sleeve;
A liquid chamber formed in the cylinder for enclosing a viscous liquid;
The piston is slidably arranged in the liquid cavity and divides the liquid cavity into a pressure cavity and a non-pressure cavity;
The elastic sleeve is arranged in the non-pressure cavity;
the elastic sleeve comprises an outer cylinder part and an inner cylinder part which are integrally formed;
an annular air chamber is surrounded between the outer cylinder part and the inner side wall of the cylinder body and is communicated with the outside of the cylinder body through an air passage;
The inner cylinder part is arranged inside the outer cylinder part; the piston comprises an inner cylinder, an outer cylinder, a piston rod, an inner cylinder and an outer cylinder, wherein the inner cylinder is integrally and hermetically connected with the outer cylinder, an annular cavity is formed between the inner cylinder and the outer cylinder;
the piston rod is in sealing connection with the through hole of the inner cylinder part.
The elastic sleeve is made of elastic materials, and the inner cylinder part is additionally arranged, so that the inner cylinder part is in sealing connection with the piston rod, the sealing structure between the piston rod and the elastic sleeve is greatly prolonged in the axial direction, viscous liquid cannot leak out through a gap between the piston rod and the elastic sleeve even if the elastic sleeve runs for a long time, and the tightness and reliability of the whole part are improved.
Further, a plurality of annular protrusions are arranged on the side wall of the through hole at intervals and used for improving the tightness between the piston rod and the through hole.
The number of annular projections may be set as desired, preferably 3 to 10.
Further, the length of the inner cylinder is 1/5~4/5 of the whole length of the outer cylinder.
Further, the elastic sleeve comprises a supporting and fixing piece, wherein the supporting and fixing piece is integrally in a circular sleeve shape, and the supporting and fixing piece is arranged in the annular air chamber and is used for fixing and supporting two ends of the elastic sleeve outer cylinder part in the axial direction of the cylinder body; the piston moves back and forth in the liquid cavity, viscous liquid enters and exits the inner cavity of the outer cylinder part of the elastic sleeve, and the outer cylinder part bulges or contracts along with the viscous liquid, so that the volume of the inner cavity is regulated.
The outer cylinder part is extruded by the viscous liquid, bulges outwards through the middle hollow part when the viscous liquid is extruded by the supporting fixing part, extrudes the annular air chamber, gas in the annular air chamber is discharged through the gas channel, and when the viscous liquid gradually flows out of the inner cavity of the outer cylinder part, the gas is sucked into the annular air chamber again through the gas channel when the outer cylinder part is restored.
Further, the outer cylinder part comprises an inner side end close to one side of the piston, the inner side port edge part is outwards turned to form an annular clamping groove, and the inner side end of the outer cylinder part is propped against the inner side wall of the cylinder body after the inner side end of the supporting fixing piece is inserted into the annular clamping groove.
Further, a piston cavity and a sleeve cavity are sequentially arranged in the cylinder body, the piston can be arranged in the piston cavity in a reciprocating sliding manner, and the elastic sleeve is arranged in the sleeve cavity;
The inner diameter of the sleeve cavity is larger than that of the piston cavity, an annular sinking table is arranged at the bottom of the sleeve cavity, which is close to the piston cavity, and the bottom of the annular clamping groove of the outer barrel part is abutted against the annular sinking table by the inner side end part of the supporting and fixing piece.
Further, an annular clamping part protruding outwards is arranged at the inner side end part of the supporting and fixing piece, and the annular clamping part abuts against the outer side wall of the annular clamping groove on the inner side wall of the cylinder body.
The cylinder body is characterized by further comprising a sealing piece, wherein the sealing piece is used for sealing a cylinder opening of the cylinder body at one end of the elastic sleeve, a shaft hole is formed in the middle of the sealing piece, and the piston rod extends out of the cylinder body through the shaft hole.
Preferably, the air passage which is communicated with the inside and the outside of the annular air chamber is arranged in the sealing piece or between the sealing piece and the cylinder body.
Further, the outer side end of the supporting and fixing piece is provided with an inwards concave annular limiting table, and the outer side end of the elastic sleeve is provided with a limiting ring table matched with the annular limiting table.
Further, the sealing device also comprises a pressing block, wherein the pressing block is filled in the outer end part of the supporting and fixing piece and between the sealing piece and the elastic sleeve; and after the sealing piece is screwed, the limiting ring table is abutted against the annular limiting table.
Further, the outer ends of the pressing block and the elastic sleeve are fixedly connected to the outer end portion of the supporting fixing piece through a clamping structure.
Further, the piston comprises a ball body (valve ball), wherein a passage which is communicated with the pressure cavity and the non-pressure cavity is arranged in the piston, a ball seat structure is arranged on one side of the pressure cavity of the passage, the ball body is movably arranged in the pressure cavity and is matched with the ball seat structure to open and close the passage or adjust the flow rate and the flow quantity of viscous liquid passing through the passage by adjusting the size of the cross section of the passage at the ball seat structure.
Further, the ball seat structure is a frustum-shaped cavity arranged on one side of the pressure cavity on the piston.
Further, the piston is provided with a limit structure for preventing the sphere from being completely separated from the piston at the outer side of the frustum-shaped chamber close to the pressure chamber.
Further, the limiting structure is an accommodating cavity communicated with the frustum-shaped cavity, the ball body can be arranged between the frustum-shaped cavity and the accommodating cavity in a reciprocating sliding mode, and limiting protrusions or limiting pins and the like for preventing the ball body from being separated are arranged at the outer side opening edge of the accommodating cavity.
Further, the limiting structure is a cage-shaped body arranged on the outer side of the frustum-shaped cavity.
Further, the piston and the cylinder body are respectively abutted by two ends of the return spring, and the return spring tends to force the piston to move to the side of the non-pressure cavity.
By adopting the technical scheme, the utility model has the following beneficial effects:
According to the buffer provided by the utility model, the elastic sleeve is made of the elastic material, and the inner cylinder part is additionally arranged, so that the inner cylinder part is in sealing connection with the piston rod, the sealing structure between the piston rod and the elastic sleeve is greatly prolonged in the axial direction, viscous liquid cannot leak out through the gap between the piston rod and the elastic sleeve even if the buffer runs for a long time, and the sealing performance and the reliability of the whole component are improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a damper according to an embodiment of the present utility model;
FIG. 2 is a front view of the damper shown in FIG. 1;
FIG. 3 is an exploded view of the damper shown in FIG. 1;
FIG. 4 is a cross-sectional view of BB in FIG. 2;
FIG. 5 is a cross-sectional view of a cylinder of the present utility model;
FIG. 6 is a schematic view of the elastic sleeve according to the present utility model;
FIG. 7 is a cross-sectional view of AA in FIG. 6;
FIG. 8 is a perspective view of an elastic sleeve according to the present utility model;
FIG. 9 is a schematic view of a support fixture according to the present utility model;
Fig. 10 is a perspective view of a support fixture according to the present utility model.
Reference numerals:
10-cylinder, 11-annular air chamber, 12-non-pressure chamber, 13-pressure chamber, 14-sleeve chamber, 14 a-annular sinking table, 15-piston chamber, 20-piston, 21-piston rod, 30-elastic sleeve, 31-outer cylinder, 32-inner cylinder, 32 a-through hole, 32 b-annular bulge, 33-inner end, 34-annular clamping groove, 35-limit ring table, 40-support fixing piece, 41-hollow, 42-inner end, 42 a-annular clamping part, 43-annular limit table, 50-sealing piece, 51-press block, 60-sphere and 61-reset spring.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model is further illustrated with reference to specific embodiments.
As shown in fig. 1-2, the buffer provided in this embodiment includes a cylinder 10, a piston 20, a piston rod 21, and an elastic sleeve 30;
A liquid chamber formed to enclose a viscous liquid is provided in the cylinder 10;
The piston 20 is slidably arranged in the liquid cavity, and the piston 20 divides the liquid cavity into a pressure cavity 13 and a non-pressure cavity 12;
the elastic sleeve 30 is arranged in the non-pressure cavity 12;
The elastic sleeve 30 comprises an outer cylinder 31 and an inner cylinder 32 which are integrally formed;
An annular air chamber 11 is surrounded between the outer cylinder 31 and the inner side wall of the cylinder 10, and the annular air chamber 11 is communicated with the outside of the cylinder 10 through an air path;
The inner cylinder 32 is arranged in the outer cylinder 31, the inner cylinder 32 and the outer cylinder 31 are integrally and hermetically connected at one end of the piston 20, an annular cavity is formed between the inner cylinder 32 and the outer cylinder 31, a through hole 32a is arranged in the middle of the inner cylinder 32, one end of a piston rod 21 is fixedly connected with the piston 20, the other end of the piston rod 21 is sequentially inserted into the outer cylinder 31 and the through hole 32a and then extends out of the cylinder 10, and the piston rod 21 is hermetically connected with the through hole 32a of the inner cylinder 32.
The elastic sleeve 30 is made of elastic materials, and the inner cylinder part 32 is additionally arranged, so that the inner cylinder part 32 is in sealing connection with the piston rod 21, the sealing structure between the piston rod 21 and the elastic sleeve 30 is greatly prolonged in the axial direction, viscous liquid cannot leak out through a gap between the piston rod 21 and the elastic sleeve 30 even if the elastic sleeve runs for a long time, and the sealing performance and the reliability of the whole component are improved.
Further, a plurality of annular protrusions 32b are arranged on the side wall of the through hole 32a at intervals, so as to improve the tightness between the piston rod 21 and the through hole 32 a. The number of the annular projections 32b may be set as desired, and is preferably 3 to 10.
The length of the inner cylinder 32 and the number of annular projections 32b can be adjusted for further sealing, and preferably the length of the inner cylinder 32 is 1/5~4/5 of the entire length of the outer cylinder 31.
Since the elastic sleeve 30 is made of elastic materials such as rubber, silica gel or plastic, and the like, the elastic sleeve 30 preferably further comprises a supporting and fixing member 40 for supporting and fixing the elastic sleeve 30, the supporting and fixing member 40 is integrally in a circular sleeve shape, the supporting and fixing member 40 is arranged in the annular air chamber 11 and is used for fixing and supporting two end parts of the outer cylinder part 31 of the elastic sleeve 30 in the axial direction of the cylinder body 10, a hollow 41 is arranged in the middle of the supporting and fixing member 40 in the axial direction of the cylinder body 10, viscous liquid enters and exits an inner cavity of the outer cylinder part 31 of the elastic sleeve 30 in the reciprocating movement process of the piston 20 in the liquid cavity, and the outer cylinder part 31 bulges or contracts accordingly and is used for adjusting the volume of the inner cavity.
The supporting and fixing member 40 fixes and supports both ends of the outer cylinder 31 so as to maintain the tightness of the liquid chamber and prevent the viscous liquid from leaking out through the gap between the elastic sleeve 30 and the cylinder 10, and simultaneously supports the annular air chamber 11, the hollow 41 in the middle of the supporting and fixing member 40, the outer cylinder 31 bulges outwards through the hollow 41 when being extruded by the viscous liquid, the annular air chamber 11 is extruded, the air in the annular air chamber 11 is discharged through the air passage, and the air is sucked into the annular air chamber 11 again through the air passage when the viscous liquid gradually flows out of the inner cavity of the outer cylinder 31 and the outer cylinder 31 is restored.
Further, the outer cylinder 31 includes an inner end 33 near the piston 20, an annular groove 34 is formed by turning the edge of the inner end 33 outwards, and the inner end 42 of the support fixing member 40 is inserted into the annular groove 34 to abut the inner end 33 of the outer cylinder 31 against the inner side wall of the cylinder 10.
The piston 20 is a reciprocating moving part, so that the sizes of the pressure chamber 11 and the non-pressure chamber 12 in the application are dynamically changed, the inner chamber of the cylinder body 10 can be divided into a piston chamber 15 and a sleeve chamber 14 in turn, the sizes of the piston chamber 15 and the sleeve chamber 14 are relatively fixedly arranged, the piston 20 can be arranged in the piston chamber 15 in a reciprocating sliding way, and the elastic sleeve 30 is arranged in the sleeve chamber 14. Preferably, the largest outer circle portion of the support fixing member 40 corresponds to the inner diameter of the sleeve cavity 14 of the cylinder body 10, is relatively fixedly clamped in the sleeve cavity 14, the outer end portion of the support fixing member 40 is fixedly connected with the outer end of the elastic sleeve 30, and the inner end portion 42 of the support fixing member 40 is fixedly connected with the inner end 33 of the elastic sleeve 30 while the inner end 33 of the elastic sleeve 30 is supported and fixedly connected with the cylinder body 10 in a sealing mode.
The inner diameter of the sleeve cavity 14 is larger than that of the piston cavity 15, an annular sinking table 14a is arranged at the bottom of the sleeve cavity 14 close to the piston cavity 15, the bottom of the annular clamping groove 34 of the outer cylinder 31 is abutted against the annular sinking table 14a by the inner side end 42 of the supporting and fixing piece 40, and further, an annular clamping and fixing part 42a protruding outwards is arranged at the inner side end 42 of the supporting and fixing piece 40, and the outer side wall of the annular clamping groove 34 is abutted against the inner side wall of the cylinder body 10 by the annular clamping and fixing part 42 a. The combination of the two sealing structures greatly improves the tightness between the elastic sleeve 30 and the cylinder body 10.
It is further preferable that the present embodiment further comprises a sealing member 50 for sealing the cylinder opening of the cylinder body 10 at one end of the elastic sleeve 30, preferably, the sealing member 50 is screwed at the cylinder opening by a screw thread manner, a shaft hole is provided in the middle of the sealing member 50, and the piston rod 21 extends out of the cylinder body 10 through the shaft hole. Preferably, the air passage for communicating the inside and the outside of the annular air chamber 11 is provided in the sealing member 50 or between the sealing member 50 and the cylinder 10.
Wherein preferably, an inward concave annular limiting table 43 is arranged at the outer end of the supporting and fixing member 40, and a limiting ring table 35 matched with the annular limiting table 43 is arranged at the outer end of the elastic sleeve 30.
Further, the embodiment further comprises a pressing block 51, wherein the pressing block 51 is filled in the outer end part of the supporting and fixing piece 40 and between the sealing piece 50 and the elastic sleeve 30, and the limiting ring table 35 is abutted against the annular limiting table 43 after the sealing piece 50 is screwed. Preferably, the outer ends of the pressing block 51 and the elastic sleeve 30 are fixedly connected to the outer end of the supporting and fixing member 40 through a clamping structure, so that the elastic sleeve 30 can be preloaded on the supporting and fixing member 40, a later assembly process is facilitated, and production efficiency is improved.
Further, the present embodiment further comprises a ball 60 (valve ball), wherein a passage for communicating the pressure chamber 11 and the non-pressure chamber 12 is arranged in the piston 20, a ball seat structure is arranged on one side of the pressure chamber 11 of the passage, the ball 60 is movably arranged in the pressure chamber 11, and is matched with the ball seat structure to open and close the passage or adjust the flow rate and the flow rate of the viscous liquid passing through the passage by adjusting the size of the cross section of the passage at the ball seat structure. Preferably, the ball seat structure is a frustoconical cavity provided on the piston 20 on the side of the pressure chamber 11.
Further, the piston 20 is provided with a limit structure for preventing the ball 60 from being completely separated from the piston 20 at the outer side of the frustum-shaped chamber close to the pressure chamber 11. The limiting structure may be a holding cavity communicated with the frustum-shaped cavity, the sphere 60 may be slidably disposed between the frustum-shaped cavity and the holding cavity, and a limiting protrusion or a limiting pin for preventing the sphere 60 from being separated is disposed at an outer edge of the holding cavity. The limiting structure can also be a cage-shaped body arranged on the outer side of the frustum-shaped cavity.
The present embodiment further includes a return spring 61, the return spring 61 being disposed in the pressure chamber 11, both ends of the return spring 61 being abutted against the piston 20 and the cylinder 10, respectively, tending to force the piston 20 to move toward the non-pressure chamber 12 side.
The elastic sleeve 30 is made of elastic materials, and the inner cylinder part 32 is additionally arranged, so that the inner cylinder part 32 is in sealing connection with the piston rod 21, the sealing structure between the piston rod 21 and the elastic sleeve 30 is greatly prolonged in the axial direction, viscous liquid cannot leak out through a gap between the piston rod 21 and the elastic sleeve 30 even if the elastic sleeve runs for a long time, and the sealing performance and the reliability of the whole component are improved.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present utility model.
Claims (13)
1. The buffer is characterized by comprising a cylinder body, a piston rod and an elastic sleeve;
A liquid chamber formed in the cylinder for enclosing a viscous liquid;
The piston is slidably arranged in the liquid cavity and divides the liquid cavity into a pressure cavity and a non-pressure cavity;
The elastic sleeve is arranged in the non-pressure cavity;
the elastic sleeve comprises an outer cylinder part and an inner cylinder part which are integrally formed;
an annular air chamber is surrounded between the outer cylinder part and the inner side wall of the cylinder body and is communicated with the outside of the cylinder body through an air passage;
The inner cylinder part is arranged inside the outer cylinder part; the piston comprises an inner cylinder, an outer cylinder, a piston rod, an inner cylinder and an outer cylinder, wherein the inner cylinder is integrally and hermetically connected with the outer cylinder, an annular cavity is formed between the inner cylinder and the outer cylinder;
the piston rod is in sealing connection with the through hole of the inner cylinder part.
2. The damper according to claim 1, wherein a plurality of annular protrusions are provided at intervals on the side wall of the through hole for improving the sealability between the piston rod and the through hole.
3. The damper according to claim 1, wherein the length of the inner cylinder portion is 1/5~4/5 of the entire length of the outer cylinder portion.
4. The buffer according to claim 1, further comprising a supporting and fixing member, wherein the supporting and fixing member is integrally in a circular sleeve shape, the supporting and fixing member is arranged in the annular air chamber and used for fixing and supporting two end parts of the elastic sleeve outer cylinder part in the axial direction of the cylinder body, the middle part of the supporting and fixing member is hollowed out in the axial direction of the cylinder body, the viscous liquid enters and exits the inner cavity of the elastic sleeve outer cylinder part in the reciprocating movement process of the piston in the liquid cavity, and the outer cylinder part bulges or contracts along with the viscous liquid, so that the volume of the inner cavity is adjusted.
5. The buffer according to claim 4, wherein the outer cylinder part comprises an inner end close to one side of the piston, the inner port is turned outwards along the part to form an annular clamping groove, and the inner end of the outer cylinder part is abutted against the inner side wall of the cylinder body after the inner end of the supporting fixing piece is inserted into the annular clamping groove.
6. The buffer according to claim 5, wherein a piston cavity and a sleeve cavity are sequentially arranged in the cylinder body, the piston is arranged in the piston cavity in a reciprocating sliding manner, and the elastic sleeve is arranged in the sleeve cavity;
The inner diameter of the sleeve cavity is larger than that of the piston cavity, an annular sinking table is arranged at the bottom of the sleeve cavity, which is close to the piston cavity, and the bottom of the annular clamping groove of the outer barrel part is abutted against the annular sinking table by the inner side end part of the supporting and fixing piece.
7. The damper according to claim 5 or 6, wherein the inner side end of the support fixing member is provided with an annular click-on portion protruding outward, the annular click-on portion abutting an outer side wall of the annular click-on groove against an inner side wall of the cylinder.
8. The buffer according to claim 4, further comprising a sealing member for sealing a cylinder opening of the cylinder body at one end of the elastic sleeve, wherein a shaft hole is provided in the middle of the sealing member, and the piston rod extends out of the cylinder body through the shaft hole.
9. The damper according to claim 8, wherein the air passage communicating the inside and the outside of the annular air chamber is provided in the sealing member or between the sealing member and the cylinder.
10. The buffer according to claim 9, wherein the outer end of the support fixing member is provided with an inward concave annular limiting table, and the outer end of the elastic sleeve is provided with a limiting ring table adapted to the annular limiting table.
11. The damper of claim 10, further comprising a press block packed in an outer end of the support fixture and between the seal and the elastic sleeve, the seal being tightened to abut the stop collar against the annular stop collar.
12. The damper according to claim 11, wherein the outer ends of the press block and the elastic sleeve are fixedly connected to the outer ends of the support fixing member by a clamping structure.
13. The buffer of claim 1 further comprising a ball, wherein a passageway is provided in the piston that communicates the pressure chamber and the non-pressure chamber, wherein a ball seat structure is provided on one side of the pressure chamber for the passageway, wherein the ball is movably disposed within the pressure chamber and is adapted to open and close the passageway or to adjust the flow rate and flow rate of the viscous liquid through the passageway by adjusting the cross-sectional size of the passageway at the ball seat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520481390.2U CN223938543U (en) | 2025-03-19 | 2025-03-19 | A buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520481390.2U CN223938543U (en) | 2025-03-19 | 2025-03-19 | A buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223938543U true CN223938543U (en) | 2026-02-24 |
Family
ID=98811999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520481390.2U Active CN223938543U (en) | 2025-03-19 | 2025-03-19 | A buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223938543U (en) |
-
2025
- 2025-03-19 CN CN202520481390.2U patent/CN223938543U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208431390U (en) | Valve needle assembly and electronic expansion valve with same | |
| TW201340955A (en) | Adjusted-free air cylinder | |
| CN110454579A (en) | Needle component and electric expansion valve with the needle component | |
| KR20240162546A (en) | Electronic expansion valve | |
| CN110486407A (en) | A kind of Effects of Viscous Fluid Damper of anti-slip leakage | |
| CN223938543U (en) | A buffer | |
| WO2023143203A1 (en) | Electronic expansion valve | |
| CN202893618U (en) | Glue injecting valve device with precise and controllable injection volume | |
| CN218935125U (en) | Asymmetric magneto-rheological damper without mechanical valve | |
| CN222984762U (en) | Dispensing valve and dispensing equipment | |
| CN113339236B (en) | Air extraction connecting device and air extraction method for vacuum drawer | |
| CN217951293U (en) | Novel membrane plug valve | |
| CN223282446U (en) | Buffer | |
| CN215673327U (en) | Anti-leakage viscous damper | |
| CN217683271U (en) | High-pressure gas valve | |
| CN215568184U (en) | Needle valve with pressure reduction function | |
| CN215487757U (en) | Valve rod structure and novel descaling valve | |
| CN222185028U (en) | Electromagnetic pump with pressure relief and internal reflux | |
| CN109973693B (en) | Balancing valve and fluid balancing method | |
| CN209800809U (en) | balance valve | |
| CN110925344A (en) | Variable spring assembly | |
| CN221323148U (en) | Sealing structure of damper | |
| CN208793769U (en) | Pressure reducing valve with epitaxial connection structure | |
| CN223239754U (en) | Adjustable double-stroke speed regulating valve | |
| CN209587154U (en) | an air control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |