CN119844522B - Air spring's inflation subassembly - Google Patents
Air spring's inflation subassembly Download PDFInfo
- Publication number
- CN119844522B CN119844522B CN202510325541.XA CN202510325541A CN119844522B CN 119844522 B CN119844522 B CN 119844522B CN 202510325541 A CN202510325541 A CN 202510325541A CN 119844522 B CN119844522 B CN 119844522B
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- China
- Prior art keywords
- inflation
- air
- limiting
- positioning cylinder
- air spring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses an air spring inflation assembly which comprises a pressure maintaining valve, an inflation head with an inflation contact pin and a limiting insert piece, and is characterized in that a valve body of the pressure maintaining valve is provided with an outer protruding limiting part, the outer protruding limiting part divides the valve body into an air inlet section with an air inlet channel and an air spring air chamber connecting section with an air outlet channel, the air spring air chamber connecting section is used for being installed with an air chamber interface of an air spring in a sealing mode, the inflation head comprises a positioning cylinder body, the inflation contact pin is arranged in the positioning cylinder body, the inflation contact pin comprises a main body part and an insertion part, an extending-in space is formed between the insertion part and the positioning cylinder body, two opposite ends of the limiting insert piece are respectively a connecting end and a limiting insert end, the connecting end is connected with the positioning cylinder body through a pull rope, the limiting insert end is provided with an insert groove with an opening at the side part, and the insert groove divides the limiting insert end into two limiting arms. The advantage is simple structure, can effectively realize the steady installation and the use of the air inflation head and the pressure maintaining valve of this structure, and the dismouting of air inflation head is also swiftly convenient.
Description
Technical Field
The invention relates to the technical field of air spring manufacturing, in particular to an air inflation assembly of an air spring.
Background
An air spring is a spring which is filled with compressed air in a telescopic closed container and utilizes the air elasticity effect. The air spring has light weight and small internal friction, and has excellent vibration isolation and noise elimination performance in a high-frequency vibration environment. Meanwhile, the air spring can realize ideal rigidity-changing characteristics by adjusting the internal pressure, namely, when the load is increased, the air in the closed container is compressed, the air pressure is increased, so that the rigidity of the spring is enhanced, and otherwise, when the load is reduced, the air pressure is reduced, and the rigidity of the spring is also reduced. The stiffness-variable characteristic enables the air spring to keep the stability of the natural frequency of the automobile body when the air spring is applied to an automobile suspension, so that the air spring is not influenced by load change. Air springs have been widely used as an important component in modern automotive suspension systems.
In the manufacture of air springs, the operation of inflation is a critical ring that has a direct impact on the performance of the air spring and the overall quality of use applied to the vehicle. At present, an inflation assembly for an air spring mainly comprises a pressure maintaining valve and an inflation head with an inflation contact pin, wherein the pressure maintaining valve is fixedly arranged on an inflation port of a product as one component part of the air spring, the inflation head is connected with an external air supply device, the inflation head is inserted into the pressure maintaining valve through the inflation contact pin, a valve core of the pressure maintaining valve is opened for inflation operation, and then stable inflation operation is ensured, so that the inflation contact pin is required to be stably inserted and arranged on the pressure maintaining valve, and the inflation head also has to be matched and clamped on the pressure maintaining valve. Particularly, for the air springs at the upper part or the side upper part of the front surface of a product by aiming at the pressure maintaining valve, the traditional inflation head is easy to slip or deviate in the clamping process due to the particularity of the position of the inflation port, so that the inflation effect is poor and even potential safety hazards are caused; in addition, the structure of the existing used inflation head is complex, the operation is complex, the rapid disassembly and assembly are difficult to realize, and certain influence exists on the manufacturing efficiency.
Disclosure of Invention
The invention aims to solve the technical problem of providing an air inflation assembly of an air spring, which has a simple structure, is stable to use, can realize quick disassembly and quick assembly, and can be used by being adapted to the air spring positioned at the upper part or the upper part of the front surface of a product.
The technical scheme adopted for solving the technical problems is as follows:
The valve body of the pressure maintaining valve is provided with an outer convex limiting part, and the outer convex limiting part divides the valve body into an air inlet section with an air inlet channel and an air spring air chamber connecting section with an air outlet channel, wherein the air inlet section is used for being installed with an air chamber interface of the air spring in a sealing way;
The air charging head comprises a positioning cylinder body, the air charging contact pin is arranged in the positioning cylinder body, the air charging contact pin comprises a main body part and an inserting part, and an extending space for the air inlet section to extend into is formed between the inserting part and the positioning cylinder body;
the positioning device comprises a positioning cylinder body, and is characterized by further comprising a limiting inserting piece, wherein two opposite ends of the limiting inserting piece are respectively a connecting end and a limiting inserting end, the connecting end is connected with the positioning cylinder body through a pull rope, the limiting inserting end is provided with an inserting groove with an opening at the side part, and the inserting groove divides the limiting inserting end into two limiting arms;
When the air-charging device is used in an air-charging mode, the air inlet section stretches into the positioning cylinder, the insertion part is inserted into the air inlet channel in a sealing close-fitting mode, the upper portion of the air spring air chamber connecting section is inserted into the inserting groove, and the limiting arm is arranged below the protruding limiting part in a limiting mode.
The positioning cylinder body comprises a main cylinder body and an extension cylinder body which are sequentially arranged along the axial direction, the main body part is arranged in the main cylinder body, the insertion part is arranged in the extension cylinder body, and the insertion part and the extension cylinder body form the extension space.
The positioning cylinder body is provided with an installation inner cavity which is penetrated along the axial direction, the inflatable contact pin is arranged in the installation inner cavity, and the positioning cylinder body is provided with an anti-drop limiting mechanism for preventing the inflatable contact pin from separating from the positioning cylinder body.
The anti-drop limiting mechanism comprises an anti-drop limiting ring arranged on the main cylinder body and an annular anti-drop limiting wall arranged in the main cylinder body in a protruding mode, the outer diameter of the main body is larger than the inner diameter of the anti-drop limiting ring, a limiting convex part is arranged on the main body in a protruding mode, the outer diameter of the limiting convex part is larger than the inner diameter of the anti-drop limiting wall, the main body is arranged between the anti-drop limiting ring and the anti-drop limiting wall, and the inserting part extends out of the anti-drop limiting wall.
The main part upwards extends and is provided with extension, the lateral part of extension is sunken to be set up and is formed a sunken terminal surface, makes the extension can follow the anticreep spacing ring outwards stretches out, it has the air inlet and the inflation channel of mutual intercommunication to aerify the contact pin, the inflation channel is followed the axial setting of inflation contact pin, the air inlet sets up the extension.
The concave end face is connected with the side end face of the main body part through an inclined end face which is inclined downwards from inside to outside, a spring is sleeved outside the main body part, and the spring is arranged between the anti-falling limiting ring and the limiting convex part.
A pressing block with a C-shaped cross section is detachably arranged on the main cylinder body, an installation groove for embedding and installing the anti-falling limiting ring is arranged on the bottom end surface of the pressing block, the pressing block is arranged on the main cylinder body, the corresponding part of the anti-falling limiting ring is embedded and arranged in the mounting groove, the extension part is arranged in the pressing block, and the air inlet is exposed through the opening of the pressing block.
And an observation port communicated with the installation cavity is arranged on the side part of the extension cylinder body corresponding to the insertion part.
Compared with the prior art, the air spring has the advantages that the air spring is simple in structure, the pressure maintaining valve with the protruding limiting part is arranged on the upper part or the side upper part of the front surface of the air spring, after the air spring is arranged, the special air charging head with the structure is matched, the air charging head is inserted into the air inlet channel of the pressure maintaining valve in a sealing and tightly matched mode through the inserting part of the air charging contact pin on the air charging head, the positioning cylinder body is sleeved outside the pressure maintaining valve to form positioning, meanwhile, the air charging head with the structure is matched with the limiting inserting piece to be inserted under the protruding limiting part in a limiting mode, and the air charging head and the pressure maintaining valve are matched with the pull rope to be stably positioned and arranged, so that the stable inserting of the air charging contact pin is ensured, and the air charging head is fast and convenient to assemble and disassemble.
Drawings
FIG. 1 is a schematic perspective view of the present invention in a mutually cooperating arrangement;
FIG. 2 is a schematic cross-sectional view of the present invention in a mating arrangement;
FIG. 3 is a schematic perspective view of an inflatable head according to the present invention;
FIG. 4 is a schematic cross-sectional view of an inflatable head of the present invention;
FIG. 5 is a schematic perspective view of a pressure maintaining valve according to the present invention;
FIG. 6 is a schematic cross-sectional view of an inflatable pin of the present invention;
FIG. 7 is a schematic view of the structure of the present invention used in combination with an air spring.
In the figure, 1, a pressure maintaining valve, 2, an inflation contact pin, 201, a main body part, 202, an inserting part, 3, an inflation head, 10, a convex limiting part, 11, an air inlet channel, 12, an air outlet channel, 101, an air inlet section, 102, an air spring air chamber connecting section, 4, a limiting insert, 41, a connecting end, 42, a limiting insert end, 5, a pull rope, 421, an insert groove, 422, a limiting arm, 301, a main cylinder, 302, an extension cylinder, 20, an extending space, 31, an installation cavity, 32, an anti-disengagement limiting ring, 33, an anti-disengagement limiting wall, 2011, a limiting convex part, 2012, an extension part, 2013, a concave end face, 4, an inclined end face, 7, a spring, 8, a pressing block, 20181, an installation groove, 3021, an observation port, 21, an air inlet, 22, an inflation channel, 6, an air supply joint and A, an air spring.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 7, an air spring inflation assembly comprises a pressure maintaining valve 1 and an inflation head 3 with an inflation contact pin 2, wherein a valve body of the pressure maintaining valve 1 is provided with a convex limiting part 10, and the convex limiting part 10 divides the valve body into an air inlet section 101 with an air inlet channel 11 and an air spring air chamber connecting section 102 with an air outlet channel 12 for sealing and installing with an air chamber interface of an air spring A;
The inflating head 3 comprises a positioning cylinder body, the inflating contact pin 2 is arranged in the positioning cylinder body, the inflating contact pin 2 comprises a main body part 201 and an inserting part 202, and an extending space 20 for extending and installing the air inlet section 101 is formed between the inserting part 202 and the positioning cylinder body;
still include spacing inserted sheet 4, spacing inserted sheet 4 opposite both ends are link 41 and spacing grafting end 42 respectively, and link 41 is connected with the locating cylinder body through a stay cord 5, and spacing grafting end 42 has lateral opening's grafting groove 421, and grafting groove 421 separates spacing grafting end 42 into two spacing arms 422.
In this particular embodiment, the positioning cylinder includes a main cylinder 301 and an extension cylinder 302 that are sequentially disposed in the axial direction, the main body 201 is disposed in the main cylinder 301, the insertion portion 202 is disposed in the extension cylinder 302, and the insertion portion 202 and the extension cylinder 302 form the penetration space 20 therebetween. The positioning cylinder body is composed of a main cylinder body 301 and an extension cylinder body 302, wherein the main cylinder body 301 is responsible for the installation of the inflatable contact pin 2, the extension cylinder body 302 is used for the sleeving positioning installation between the whole positioning cylinder body and the pressure maintaining valve 1, and the length of a proper pull rope 5 is matched, so that when the positioning cylinder body is dismounted, the limiting locking of the limiting insert piece 4 to the pressure maintaining valve 1 is required to be released firstly, and then the positioning cylinder body is pulled out, so that the installation stability is realized.
In this embodiment, the positioning cylinder has an installation cavity 31 penetrating in the axial direction, the inflation contact pin 2 is disposed in the installation cavity 31, and in order to achieve stable installation connection between the inflation contact pin 2 and the positioning cylinder, an anti-drop limiting mechanism for preventing the inflation contact pin 2 from falling out of the positioning cylinder is disposed on the positioning cylinder.
In this embodiment, the anti-falling limiting mechanism includes an anti-falling limiting ring 32 disposed on the main cylinder 301 and an annular anti-falling limiting wall 33 protruding into the main cylinder 301, the outer diameter of the main body 201 is larger than the inner diameter of the anti-falling limiting ring 32, a limiting protrusion 2011 is protruding on the main body 201, the outer diameter of the limiting protrusion 2011 is larger than the inner diameter of the anti-falling limiting wall 33, the main body 201 is disposed between the anti-falling limiting ring 32 and the anti-falling limiting wall 33, and the insertion portion 202 extends out from the anti-falling limiting wall 33. The anti-drop limiting mechanism is simple in structure and can provide a stable anti-drop limiting function.
In this embodiment, the main body 201 is provided with an extension 2012 extending upward, a side portion of the extension 2012 is recessed to form a recessed end surface 2013, so that the extension 2012 can protrude outward from the anti-drop limiting ring 32, the inflation pin 2 has an air inlet 21 and an inflation channel 22 that are mutually communicated, the inflation channel 22 is disposed along an axial direction of the inflation pin 2, and the air inlet 21 is disposed on the extension 2012. The extension 2012 is used for the air inlet 21, so that the connection port of the air inlet 21 is conveniently exposed to the air supply connector 6 for connecting with external air supply equipment.
In this embodiment, the concave end surface 2013 is connected to the side end surface of the main body 201 through an inclined end surface 2014 inclined from inside to outside and downward, and a spring 7 is installed on the outer portion of the main body 201 in a sleeved manner, where the spring 7 is disposed between the anti-falling limiting ring 32 and the limiting protrusion 2011. By the design, the inflatable contact pin 2 can do axial elastic movement according to actual insertion conditions, so that the inflatable contact pin can be in tight fit with the corresponding pressure maintaining valve 1 for plugging and installation better, and the inflatable contact pin is flexible to use.
In this embodiment, a pressing block 8 with a C-shaped cross section is detachably mounted on the main cylinder 301, a mounting groove 81 for embedding and mounting the anti-falling limiting ring 32 is provided on the bottom end surface of the pressing block 8, the pressing block 8 is mounted on the main cylinder 301, a corresponding part of the anti-falling limiting ring 32 is embedded and arranged in the mounting groove 81, an extension 2012 is arranged in the pressing block 8, and the air inlet 21 is exposed through an opening of the pressing block 8. The pressing block 8 is used for realizing stable installation of the anti-falling limiting ring 32 on the main cylinder 301, meanwhile, the cross section of the pressing block 8 is C-shaped, and is provided with an opening, so that the exposure of the connecting port of the air inlet 21 can be realized, and the installation and the disassembly of the air supply connector 6 on the external air supply device are facilitated.
In this embodiment, a viewing port 3021 communicating with the mounting cavity 31 is provided at a position of the side portion of the extension cylinder 302 corresponding to the insertion portion 202. The observation port 3021 facilitates observation of the insertion position between the insertion portion 202 of the inflation contact pin 2 and the pressure maintaining valve 1, and ensures stable sealing insertion of both.
In this embodiment, the pressure-maintaining valve 1 may be a spring-type pressure-maintaining valve or a direct-acting pressure-maintaining valve in which a valve core is pushed open by air pressure to realize communication between the air inlet channel 11 and the air outlet channel 12.
In this embodiment, the pull rope 5 with a suitable length can be selected according to a specific size design, and the first pull rope 5 is used for preventing the loss of the limiting insert piece 4, and the second pull rope is used for ensuring that the inflatable plug pin 2 cannot be pulled out from the pressure-maintaining valve 1 under the condition that the limiting insert piece 4 is not pulled out, so that the installation stability is ensured.
The positioning cylinder is sleeved on the pressure maintaining valve 1, the insertion part 202 of the inflation contact pin 2 is inserted into the air inlet channel 11 of the pressure maintaining valve 1 in a sealing and tight fit manner, after the inflation contact pin 2 is confirmed to be inserted in place, the limiting insertion piece 4 is inserted, the upper part of the air spring air chamber connecting section 102 is inserted into the insertion groove 421, the limiting arm 422 is arranged below the outer protruding limiting part 10 in a limiting manner, the two parts are matched and installed, after air supply, the valve core of the pressure maintaining valve 1 is jacked up by air pressure, the air inlet channel 11 of the pressure maintaining valve 1 is communicated with the air outlet channel 12 to realize inflation of the air spring A, after the inflation is completed, the limiting insertion piece 4 is firstly required to be pulled out, the limiting of the outer protruding limiting part 10 by the limiting insertion piece 4 is eliminated, the valve core of the pressure maintaining valve 1 is not subjected to external pressure, and is automatically reset, and the air inlet channel 11 and the air outlet channel 12 of the pressure maintaining valve 1 are not communicated with each other.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510325541.XA CN119844522B (en) | 2025-03-19 | 2025-03-19 | Air spring's inflation subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510325541.XA CN119844522B (en) | 2025-03-19 | 2025-03-19 | Air spring's inflation subassembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119844522A CN119844522A (en) | 2025-04-18 |
| CN119844522B true CN119844522B (en) | 2025-07-08 |
Family
ID=95371044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510325541.XA Active CN119844522B (en) | 2025-03-19 | 2025-03-19 | Air spring's inflation subassembly |
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| Country | Link |
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| CN (1) | CN119844522B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210423542U (en) * | 2019-06-28 | 2020-04-28 | 江西理工大学 | Split piston and air spring with additional air chamber |
| CN119508409A (en) * | 2024-12-27 | 2025-02-25 | 四川宁江山川机械有限责任公司 | An independent double-chamber air spring |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787607A (en) * | 1986-09-24 | 1988-11-29 | The Firestone Tire & Rubber Company | Air spring having internal sealing band and method of installing same |
| US5413316A (en) * | 1993-12-13 | 1995-05-09 | Bridgestone/Firestone, Inc. | Adjustable rate air spring |
| AU784814B2 (en) * | 2000-08-09 | 2006-06-29 | Bfs Diversified Products, Llc | Integrated air spring |
| MXPA05000690A (en) * | 2002-07-31 | 2005-04-08 | Sgg Patents Llc | Inflation valve device with a pressure measuring unit for an inflatable bladder. |
| US20210061038A1 (en) * | 2019-08-30 | 2021-03-04 | Reno N. Heon | Air spring bellows for air suspension systems |
| CN212338351U (en) * | 2020-06-02 | 2021-01-12 | 奥可利电子(昆山)有限公司 | Double-coil solenoid valve and thermocouple connection structure for gas appliances with good disengagement resistance |
| CN218094021U (en) * | 2022-10-13 | 2022-12-20 | 浙江孔辉汽车科技有限公司 | Air charging system |
| CN119572658A (en) * | 2024-12-27 | 2025-03-07 | 四川宁江山川机械有限责任公司 | Air spring |
-
2025
- 2025-03-19 CN CN202510325541.XA patent/CN119844522B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210423542U (en) * | 2019-06-28 | 2020-04-28 | 江西理工大学 | Split piston and air spring with additional air chamber |
| CN119508409A (en) * | 2024-12-27 | 2025-02-25 | 四川宁江山川机械有限责任公司 | An independent double-chamber air spring |
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| Publication number | Publication date |
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| CN119844522A (en) | 2025-04-18 |
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