CN210686811U - Air spring hovering locking structure - Google Patents
Air spring hovering locking structure Download PDFInfo
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- CN210686811U CN210686811U CN201921671315.3U CN201921671315U CN210686811U CN 210686811 U CN210686811 U CN 210686811U CN 201921671315 U CN201921671315 U CN 201921671315U CN 210686811 U CN210686811 U CN 210686811U
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Abstract
The utility model relates to the technical field of gas springs, in particular to a gas spring hovering locking structure, which comprises an adjusting valve core, a first guide head and a first sealing groove, wherein the first sealing groove is provided with a first assembling sealing ring; a second guide head is provided with a second sealing groove for assembling a second sealing ring, and the diameter of the second guide head is the same as that of the first guide head; the neck-shrinking body is connected with one axial end of the first guide head and the other axial end of the first guide head, and the diameter of the neck-shrinking body is smaller than that of the first guide head; and one axial end of the adjusting rod is connected with the other axial end of the first guide head. The structure of adjusting case and piston has been improved to this application, changes the piston that the structure is complicated into simple structure, processing convenient piston to add the seal groove on adjusting the case, do the injecing for the position of sealing washer with the structure of adjusting case itself, save the gasket that injecing the sealing washer usefulness, this application has simplified piston and regulation case structure on the basis that remains the original function of air spring.
Description
Technical Field
The utility model relates to an air spring technical field specifically is an air spring locking structure of hovering.
Background
The existing gas spring locking structure is characterized in that an adjusting rod is arranged inside a hollow piston rod and abuts against an adjusting valve core at the bottom of the hollow piston rod, the adjusting valve core is always tightly pressed on a piston due to high air pressure inside a gas spring at ordinary times, direct oil-gas exchange between a recovery cavity and a compression cavity is separated, and the gas spring is difficult to compress under the condition. When the adjusting rod is pressed down and the adjusting valve core is pushed open to enable the adjusting valve core not to cling to the hollow piston rod any more, the oil-gas exchange channel between the recovery cavity and the compression cavity is opened, and the gas spring can be compressed very easily. The existing structure has the defects that a large number of valve plates and a complex piston structure are needed for determining the positions of an adjusting valve core and a sealing ring for sealing, so that the number of parts is too large, the process is too complex, and the product consistency is difficult to control during assembly.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that prior art exists, a locking structure is hovered to air spring has been proposed.
The utility model provides a technical scheme that its technical problem adopted is: an air spring hovering locking structure comprises
A regulating valve core, which comprises
The first guide head is provided with a first sealing groove for assembling a first sealing ring;
a second guide head is provided with a second sealing groove for assembling a second sealing ring, and the diameter of the second guide head is the same as that of the first guide head;
the neck-shrinking body is connected with one axial end of the first guide head and the other axial end of the first guide head, and the diameter of the neck-shrinking body is smaller than that of the first guide head;
and one axial end of the adjusting rod is connected with the other axial end of the first guide head.
Preferably, it further comprises
The hollow piston rod is internally provided with a rod cavity allowing the adjusting rod to move axially and a valve core cavity accommodating the adjusting valve core and communicated with the rod cavity, and the diameter of the valve core cavity is larger than that of the rod cavity;
the piston is connected with the outer wall of the hollow piston rod at the end provided with the valve core cavity, one axial side of the piston is a recovery cavity, and the other axial side of the piston is a compression cavity; the hollow piston rod is provided with a circulation hole which is matched with the adjusting valve core to communicate the recovery cavity and the compression cavity.
Preferably, it further comprises
The inner wall of one end of the axis is provided with a first limiting bulge, and the inner wall of the other end of the axis is provided with a second limiting bulge;
the outer wall of the guider is sleeved with the inner wall of one axial end of the outer barrel, the outer wall of the guider is provided with a first limiting groove matched and connected with the first limiting bulge and a third sealing groove for assembling a sealing ring III, the inner wall of the guider is sleeved with the outer wall of the hollow piston rod, and the inner wall of the guider is provided with a fourth sealing groove for assembling a sealing ring IV;
the connector is connected with the inner wall of the other axial end of the outer barrel, and the outer wall of the connector is provided with a second limiting groove in matched connection with the second limiting protrusion and a fifth sealing groove for assembling a fifth sealing ring;
the piston periphery wall with urceolus inner wall contact, and be equipped with assembly sealing washer six seal groove six.
Preferably, the connector is further provided with an axial limiting protrusion matched with the outer barrel for use.
Preferably, the method also comprises oil and gas isolation
The floating piston is arranged between the piston and the connectors, and the peripheral wall of the floating piston is connected with the inner wall of the outer barrel in a sealing mode.
Preferably, the method also comprises oil and gas isolation
The piston floats, locate the director with between the piston, the periphery wall with urceolus inner wall sealing connection, internal perisporium with hollow piston rod outer wall sealing connection.
Preferably, the axial length of the first guide head is greater than the axial length of the second guide head.
Preferably, the device also comprises an outer cylinder and an inner cylinder.
Preferably, a floating piston is arranged between the outer cylinder and the inner cylinder.
Preferably, it further comprises
The piston is arranged opposite to the regulating valve core;
one end of the piston rod is connected with the piston;
an outer cylinder;
an inner cylinder; and a floating piston is arranged between the outer cylinder and the inner cylinder.
The beneficial effects of the utility model are that, this application has improved the structure of adjusting valve core and piston, the piston that is complicated with the structure changes simple structure, processing convenient piston, and add the seal groove on adjusting valve core, do the injecing for the position of sealing washer with the structure of adjusting valve core itself, save the gasket that the sealing washer was used of injecing, this application has simplified piston and adjusting valve core structure on the basis that remains the original function of air spring, make the integration of adjusting valve core, assembly parts has been reduced, the equipment degree of difficulty has been reduced, and make the air spring result of use better.
Drawings
FIG. 1 is a schematic structural view of a gas spring in a locked state according to the present application;
FIG. 2 is a schematic view of the gas spring of the present application in a flow-through condition;
FIG. 3 is a schematic structural view of the adjustment valve core and the hollow piston rod in FIG. 1;
FIG. 4 is a schematic structural view of the adjustment valve core and the hollow piston rod in FIG. 2;
FIG. 5 is an exploded view of a gas spring according to the present application;
FIG. 6 is a cross-sectional view of a gas spring of the present application;
FIG. 7 is an enlarged partial view of the regulator spool of FIG. 6;
FIG. 8 is a schematic view of a gas spring hover lock configuration with a movable piston;
FIG. 9 is a schematic view of a gas spring hover lock configuration in a dual barrel configuration;
FIG. 10 is a schematic view of a gas spring hover lock configuration with a moving end separated from a control end.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
First embodiment, as shown in fig. 1 to 7, a gas spring hovering locking structure includes an outer cylinder 1, a guide 2, a connector 3, an adjusting valve core 5, an adjusting rod 6, a hollow piston rod 7 and a piston 8.
The adjusting valve core 5 comprises a first guide head 51 provided with a first sealing groove for assembling a first sealing ring, and a second guide head 52 provided with a second sealing groove for assembling a second sealing ring, wherein the diameter of the second guide head 52 is the same as that of the first guide head 51, and the first guide head 51 and the second guide head 52 can be cylinders. The device also comprises a necking body 53, one axial end of which is connected with one axial end of the first guide head 51, and the other axial end of which is connected with the second guide head 52, wherein the diameter of the necking body is smaller than that of the first guide head 51. The first sealing ring is used for sealing the inside and the outside of the gas spring, and the second sealing ring is used for sealing oil-gas exchange between the recovery cavity and the compression cavity. The axial length of the first guide head 51 is greater than that of the second guide head 52, so that the axial movement of the regulating valve core 5 is facilitated, and the inclination and clamping of the regulating valve core 5 are prevented.
One axial end of the adjusting rod 6 is connected with the other axial end of the first guide head 51.
The hollow piston rod 7 is internally provided with a rod cavity allowing the adjusting rod 6 to move axially and a valve core cavity accommodating the adjusting valve core 5 and communicated with the rod cavity, and the diameter of the valve core cavity is larger than that of the rod cavity to form a limiting part. The outer wall of the hollow piston rod 7 is provided with a limit nut to prevent the hollow piston rod 7 from moving axially inwards. The axial two ends of the rod cavity are provided with supporting shaft sleeves which are connected with the adjusting rod 6 in a sliding way.
After the adjusting rod 6 is pressed down, the adjusting valve core 5 moves rightwards in the axial direction, so that the second guiding head 52 is pushed out of the valve core cavity, the oil-gas exchange channel of the recovery cavity and the oil-gas exchange channel of the compression cavity are communicated, and the gas spring can be compressed and stretched by small force. When the adjusting rod 6 is loosened, the adjusting valve 5 is automatically pushed back due to the difference of pressure between the inside and the outside of the air spring, the left side of the adjusting valve core 5 stops when touching the limiting part of the hollow piston rod 7, and the air spring enters a locking state.
The piston 8 and the hollow piston rod 7 are connected with the outer wall of the valve core cavity end, one axial side of the piston 8 is a recovery cavity, the other axial side of the piston 8 is a compression cavity, and the hollow piston rod 7 is provided with a circulation hole 71 which is matched with the adjusting valve core 5 to communicate the recovery cavity and the compression cavity. The peripheral wall of the piston 8 is in contact with the inner wall of the outer barrel 1 and is provided with a sealing groove six for assembling a sealing ring six. The piston 8 is connected with the hollow piston rod 7 by punching and riveting, or by spin riveting, or by laser welding, so that the piston can be firmly connected. And the sealing ring six is used for sealing and isolating the recovery cavity and the compression cavity.
The inner wall of one end of the axis of the outer cylinder 1 is provided with a first limiting bulge 11, and the inner wall of the other end of the axis is provided with a second limiting bulge 12.
The outer wall of the guider 2 is sleeved with the inner wall of one axial end of the outer barrel 1, the outer wall of the guider is provided with a first limiting groove 21 matched and connected with the first limiting protrusion 11 and a third sealing groove for assembling a sealing ring III, the inner wall of the guider is sleeved with the outer wall of the hollow piston rod 7, and the inner wall of the guider is provided with a fourth sealing groove for assembling a sealing ring IV. And the third sealing ring and the fourth sealing ring are used for sealing the recovery cavity and the outside.
The connector 3 is connected with the inner wall of the other axial end of the outer barrel 1, and a second limiting groove 31 and a fifth sealing groove for assembling a fifth sealing ring are arranged on the outer wall of the connector and are in matched connection with the second limiting protrusion 12. And the sealing ring five is used for isolating the compression cavity from the outside. The connector 3 is further provided with an axial limiting protrusion 32 matched with the outer barrel 1 for use, so that the connector 3 is further prevented from moving axially inwards.
The structure of adjusting case 5 and piston 8 has been improved to this application, changes the piston 8 that the structure is complicated into simple structure, processing convenient piston 8 to add the seal groove on adjusting case 5, do the injecing for the position of sealing washer with the structure of adjusting case 5 itself, save the gasket of injecing the sealing washer usefulness. When the valve enters a locking state, the regulating valve core 5 is abutted against the limiting part of the hollow piston rod 7. This application has simplified piston 8 and 5 structures of adjusting valve core on the basis that remains the original function of air spring, makes 5 integrations of adjusting valve core, has reduced the assembly part, has reduced the equipment degree of difficulty to it is better to make the air spring result of use.
The first sealing ring, the second sealing ring, the third sealing ring, the fourth sealing ring and the fifth sealing ring can be O-shaped sealing rings or star-shaped sealing rings.
The second embodiment is different from the first embodiment in that a floating piston 9 for isolating oil gas is further included, as shown in fig. 8, when the use occasion has high requirements on abnormal sound.
The floating piston 9 can be arranged between the piston 8 and the connector 3, and the peripheral wall is connected with the inner wall of the outer cylinder 1 in a sealing way.
If the user does not require the whole piston rod to be pulled out, the floating piston 9 can be arranged between the guider 2 and the piston 8, the outer peripheral wall of the floating piston is connected with the inner wall of the outer cylinder 1 in a sealing mode, and the inner peripheral wall of the floating piston is connected with the outer wall of the hollow piston rod 7 in a sealing mode, so that the cylinder body is short.
Third embodiment, as shown in fig. 9, the difference from the first embodiment is that it includes an outer cylinder 13 and an inner cylinder 14, and a shorter cylinder can be used with the same stroke, which is suitable for narrow installation space.
When the use occasion has high requirement on abnormal sound, the floating piston 9 can be arranged between the outer cylinder body 13 and the inner cylinder body 14.
In the fourth embodiment, as shown in fig. 10, the difference from the first embodiment is that the piston 8 and the adjustment valve core 5 are arranged opposite to each other, the piston 8 and the piston rod 72 are arranged at the moving end of the cylinder, and the adjustment valve core 5 is arranged at the control end of the cylinder, and the gas spring hovering locking structure of the structure has a low requirement on processing of parts and has a longer service life. When the requirement on abnormal sound is higher in the use occasion, the double-cylinder structure can be further arranged.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (10)
1. The utility model provides a gas spring locking structure that hovers which characterized in that: comprises that
A regulating valve core (5) comprising
The first guide head (51) is provided with a first sealing groove for assembling the first sealing ring;
a second guide head (52) provided with a second sealing groove for assembling a second sealing ring, and the diameter of the second sealing groove is the same as that of the first guide head (51);
the neck-down body (53) has one axial end connected with one axial end of the first guide head (51) and the other axial end connected with the second guide head (52), and the diameter of the neck-down body is smaller than that of the first guide head (51);
and one axial end of the adjusting rod (6) is connected with the other axial end of the first guide head (51).
2. A gas spring hover lock structure as claimed in claim 1, wherein: also comprises
The hollow piston rod (7) is internally provided with a rod cavity allowing the adjusting rod (6) to move axially and a valve core cavity accommodating the adjusting valve core (5) and communicated with the rod cavity, and the diameter of the valve core cavity is larger than that of the rod cavity;
the piston (8) is connected with the outer wall of the end, provided with the valve core cavity, of the hollow piston rod (7), and one axial side of the piston is a recovery cavity while the other axial side of the piston is a compression cavity; the hollow piston rod (7) is provided with a circulation hole (71) which is matched with the adjusting valve core (5) to communicate the recovery cavity with the compression cavity.
3. A gas spring hover lock structure as claimed in claim 2, wherein: also comprises
The inner wall of one end of the axis of the outer cylinder (1) is provided with a first limiting bulge (11), and the inner wall of the other end of the axis of the outer cylinder is provided with a second limiting bulge (12);
the outer wall of the guider (2) is sleeved with the inner wall of one axial end of the outer barrel (1), the outer wall of the guider is provided with a first limiting groove (21) which is matched and connected with the first limiting bulge (11) and a third sealing groove for assembling a sealing ring III, the inner wall of the guider is sleeved with the outer wall of the hollow piston rod (7), and the inner wall of the guider is provided with a fourth sealing groove for assembling a sealing ring IV;
the connector (3) is connected with the inner wall of the other axial end of the outer barrel (1), and a second limiting groove (31) which is matched and connected with the second limiting bulge (12) and a fifth sealing groove for assembling a fifth sealing ring are formed in the outer wall of the connector;
the outer peripheral wall of the piston (8) is in contact with the inner wall of the outer barrel (1) and is provided with a sealing groove six for assembling a sealing ring six.
4. A gas spring hover lock structure as claimed in claim 3, wherein: the connector (3) is further provided with an axial limiting bulge (32) matched with the outer barrel (1) for use.
5. A gas spring hover lock structure as claimed in claim 3, wherein: also including isolating oil and gas
The floating piston (9) is arranged between the piston (8) and the connectors (3), and the peripheral wall of the floating piston is connected with the inner wall of the outer cylinder (1) in a sealing manner.
6. A gas spring hover lock structure as claimed in claim 3, wherein: also including isolating oil and gas
Floating piston (9), locate director (2) with between piston (8), the periphery wall with urceolus (1) inner wall sealing connection, internal perisporium with hollow piston rod (7) outer wall sealing connection.
7. A gas spring hover lock structure as claimed in claim 1, wherein: the axial length of the first guide head (51) is larger than that of the second guide head (52).
8. A gas spring hover lock structure as claimed in claim 2, wherein: also comprises an outer cylinder body (13) and an inner cylinder body (14).
9. A gas spring hover lock structure as defined in claim 8, wherein: and a floating piston (9) is arranged between the outer cylinder (13) and the inner cylinder (14).
10. A gas spring hover lock structure as claimed in claim 1, wherein: also comprises
A piston (8) arranged opposite to the regulating valve core (5);
a piston rod (72) having one end connected to the piston (8);
an outer cylinder (13);
an inner cylinder (14); and a floating piston (9) is arranged between the outer cylinder (13) and the inner cylinder (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921671315.3U CN210686811U (en) | 2019-10-08 | 2019-10-08 | Air spring hovering locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921671315.3U CN210686811U (en) | 2019-10-08 | 2019-10-08 | Air spring hovering locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686811U true CN210686811U (en) | 2020-06-05 |
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ID=70897402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921671315.3U Active CN210686811U (en) | 2019-10-08 | 2019-10-08 | Air spring hovering locking structure |
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| Country | Link |
|---|---|
| CN (1) | CN210686811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630668A (en) * | 2019-10-08 | 2019-12-31 | 浙江雨辰机械有限公司 | Air spring hovering locking structure |
| CN113958646A (en) * | 2021-12-08 | 2022-01-21 | 佛山市顺德区合协气弹簧有限公司 | Novel controllable valve body |
-
2019
- 2019-10-08 CN CN201921671315.3U patent/CN210686811U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630668A (en) * | 2019-10-08 | 2019-12-31 | 浙江雨辰机械有限公司 | Air spring hovering locking structure |
| CN113958646A (en) * | 2021-12-08 | 2022-01-21 | 佛山市顺德区合协气弹簧有限公司 | Novel controllable valve body |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211206 Address after: 311100 No. 480, Xingxing Road, Yuhang Economic and Technological Development Zone, Linping District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU KINGSTON INDUSTRIAL Co.,Ltd. Address before: 313000 Room 302, 3 / F, building 3, Xiaquan, Lingfeng street, Anji County, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG YUCHEN MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |