Novel pressure relief safety structure of air spring
By introducing components such as sealing grooves and sealing rings into the air spring, the problems of incomplete air leakage and pressure relief protection are solved, the protection of the balloon and the visual prompt of air leakage are achieved, and the safety and service life of the air spring are improved.
Patent Information
- Application Number
- CN202422942572.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-30
AI Technical Summary
Existing air springs are prone to air leakage and the pressure relief protection mechanism only works when the system pressure exceeds a preset level. It cannot remind the system of the need for pressure relief when the pressure is lower than the preset level, and the leakage is difficult to detect from the outside.
A new type of air spring pressure relief safety structure has been designed, including components such as a rubber capsule, a balloon, a connecting hole, a sealing groove, a limit block, an adjusting rod and a telescopic spring. Through the cooperation of the sealing groove and the sealing ring, gas circulation under normal pressure is achieved. When there is a leak, the balloon shrinks and a visual prompt is given to replace it. Under high pressure, the pressure is adjusted through the pressure relief valve.
It effectively protects the balloon from rupture due to overpressure expansion, and provides a visual prompt to replace the rubber capsule in case of leakage, ensuring the safety and service life of the system.
Smart Images
Figure CN223306198U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of air springs, in particular to a novel pressure relief safety structure of an air spring. Background Art
[0002] An air spring is a spring that is filled with compressed air in a retractable, sealed container and utilizes the elasticity of the air. Commonly known as an airbag, airbag cylinder, or bladder cylinder, the pressure relief mechanism in air springs is particularly important in air spring systems. An air spring is filled with compressed air in a sealed container and utilizes the compressibility of the gas to achieve its elastic effect. When the system pressure exceeds a preset level, a pressure relief valve opens, releasing excess pressure and protecting the air spring and other related equipment from excessive pressure. This mechanism ensures the stability and safety of the air spring system and improves the durability and service life of the equipment.
[0003] However, the existing air springs still have the following problems during use:
[0004] The existing air springs have the problem of air leakage during use. The leakage problem is mainly due to the hardening of the capsule of the pressure self-sealing air spring in cold weather. At the same time, sewage and other impurities discharged by the vehicle enter, causing relative displacement between the capsule and the upper cover and temporary inability to reset, resulting in air leakage. In addition, if the rubber bladder mouth has defects such as missing glue, damage, or rupture of the capsule, it will also cause air leakage. Since the air spring has air leakage, the elastic spring still applies elastic force inside the rubber capsule, so that the rubber capsule cannot be seen from the appearance of the air leakage. At the same time, the pressure relief protection mechanism only provides an operation prompt when the system pressure exceeds the preset level. When the system pressure is lower than the preset level, the pressure relief protection mechanism does not play a prompting role. Therefore, it is very necessary to use a new type of air spring pressure relief safety structure in the existing air spring field. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art, when the existing air spring leaks, the elastic spring still applies elastic force inside the rubber capsule, so that the rubber capsule cannot see the leakage from the outside. At the same time, the pressure relief protection mechanism only provides an operation prompt when the system pressure exceeds the preset level. When the system pressure is lower than the preset level, the pressure relief protection mechanism does not provide a prompt. The utility model proposes a new pressure relief safety structure for the air spring.
[0006] The technical solution adopted by the utility model to solve its technical problems is: a new type of air spring pressure relief safety structure is assembled on a rubber capsule, the bottom of the rubber capsule is fixedly assembled with a connecting block, the side of the connecting block is fixedly assembled with a docking tube, the docking tube is fixedly assembled with a balloon, the inner bottom surface of the rubber capsule is provided with a connecting hole, the connecting hole is connected with the interior of the docking tube, the inner bottom surface of the rubber capsule is provided with a sealing groove, the sealing groove is located on the outside of the connecting hole, the inner top surface of the rubber capsule is fixedly assembled with a mounting tube, the inner movably assembled limit block of the mounting tube, the limit block is fixedly assembled with an adjusting rod, the adjusting rod movably passes through the mounting tube, and the bottom of the adjusting rod is fixedly assembled with a connecting disk, the connecting disk is located above the sealing groove, the bottom of the connecting disk is fixedly assembled with a sealing ring, the sealing ring is plugged into the sealing groove, the mounting tube and the adjusting rod are equipped with a telescopic spring, and the two ends of the telescopic spring are fixedly assembled with the inner top surface of the rubber capsule and the surface of the connecting disk respectively.
[0007] Preferably, an elastic spring is fixedly installed inside the rubber capsule, and the telescopic spring is located inside the elastic spring.
[0008] Preferably, the top of the rubber capsule and the bottom of the connecting block are both fixedly equipped with fixing flanges, and the fixing flanges are both equipped with connecting flanges.
[0009] Preferably, the fixing flange and the connecting flange are equipped with a plurality of fastening bolts, and nuts are threadedly assembled on the fastening bolts.
[0010] Preferably, a waist ring is fixedly mounted on the rubber capsule, and an air pipe is fixedly mounted on the connecting flange, and the air pipe is connected to the interior of the rubber capsule.
[0011] Preferably, a pressure relief pipe is fixedly mounted on the connecting flange, the interior of the pressure relief pipe is communicated with the interior of the rubber capsule, and a pressure relief valve is fixedly mounted on the pressure relief pipe.
[0012] The utility model is beneficial in that:
[0013] When the air pressure inside the rubber capsule of the utility model is too high, the balloon expands under the action of the air pressure. At this time, the pressure relief valve is controlled so that the pressure relief pipe releases the high pressure in the rubber capsule and the balloon to a normal value. The rubber capsule is expanded and contracted by the elastic spring, and the connecting disk moves toward the inner bottom surface of the rubber capsule until the sealing ring on the connecting disk is plugged into the sealing groove. The adjusting rod and the limit block move inside the mounting tube, and the expansion spring contracts. The gas on the rubber capsule cannot enter the balloon through the connecting hole in large quantities, and the gas can only circulate through the trachea, so that the balloon will not be damaged by the expansion of the gas circulation, thereby protecting the balloon. When the rubber capsule leaks, the gas in the balloon is insufficient and the balloon appears to be in a shriveled state, which can be checked with the naked eye, prompting the user to replace the rubber capsule. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 This is a schematic diagram of the pressure relief safety structure of the new air spring of the present utility model;
[0016] Figure 2 This is a schematic diagram of the pressure relief safety structure of the new air spring of the present utility model;
[0017] Figure 3 This is a schematic cross-sectional view of the pressure relief safety structure of the novel air spring of the present utility model;
[0018] Figure 4 This is a schematic structural diagram of the blocking mechanism of the present utility model.
[0019] In the picture:
[0020] 10. Rubber capsule; 11. Connecting block; 12. Fixing flange; 13. Connecting flange;
[0021] 20. Fastening bolts; 21. Nuts; 22. Air pipe; 23. Pressure relief pipe;
[0022] 30. Pressure relief valve; 31. Balloon; 32. Waist ring; 33. Butt joint;
[0023] 40. Elastic spring; 41. Mounting tube; 42. Limit block; 43. Adjustment rod;
[0024] 50. Connecting plate; 51. Telescopic spring; 52. Connecting hole; 53. Sealing groove;
[0025] 60. Sealing ring. DETAILED DESCRIPTION
[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] The following is combined with Figure 1 —4 further details of this application,
[0028] The embodiment of the present application discloses a novel pressure relief safety structure of an air spring. Figure 2 - Figure 4 A new type of air spring pressure relief safety structure is assembled on a rubber capsule 10. A connecting block 11 is fixedly assembled on the bottom of the rubber capsule 10, and a docking tube 33 is fixedly assembled on the side of the connecting block 11. A balloon 31 is fixedly assembled on the docking tube 33. A connecting hole 52 is provided on the inner bottom surface of the rubber capsule 10 to communicate with the interior of the docking tube 33. A sealing groove 53 is provided on the inner bottom surface of the rubber capsule 10 located outside the connecting hole 52. A mounting tube 41 is fixedly assembled on the inner top surface of the rubber capsule 10. A limit block 42 is movably assembled inside the mounting tube 41. An adjusting rod 43 is fixedly assembled on the limit block 42. The adjusting rod 43 movably passes through the mounting tube 41, and a connecting disk 50 is fixedly assembled on the bottom of the adjusting rod 43. The connecting disk 50 is located above the sealing groove 53, and the bottom of the connecting disk 50 is fixedly assembled. The rubber capsule 10 is fixedly equipped with a sealing ring 60 that can be plugged into the sealing groove 53. A telescopic spring 51 is fixedly assembled between the inner top surface of the rubber capsule 10 and the surface of the connecting disk 50. The mounting tube 41 and the adjusting rod 43 are assembled on the inner side of the telescopic spring 51. The interior of the rubber capsule 10 is fixedly equipped with an elastic spring 40. The telescopic spring 51 is located on the inner side of the elastic spring 40. When the rubber capsule 10 leaks, the gas in the balloon 31 is insufficient and the balloon 31 becomes shrunken. The rubber capsule 10 is expanded and contracted by the elastic spring 40, and the sealing ring 60 on the connecting disk 50 is plugged into the sealing groove 53. The adjusting rod 43 and the limit block 42 move inside the mounting tube 41, and the telescopic spring 51 contracts. The gas on the rubber capsule 10 cannot enter the balloon 31 through the connecting hole 52 in large quantities.
[0029] Reference Figure 1 Figure 3The top of the rubber capsule 10 and the bottom of the connecting block 11 are fixedly equipped with a fixing flange 12, and the fixing flange 12 is equipped with a connecting flange 13. A plurality of fastening bolts 20 are assembled on the fixing flange 12 and the connecting flange 13. The fastening bolts 20 are threadedly equipped with nuts 21. The fixing flange 12 and the connecting flange 13 are fixed by the fastening bolts 20 and the nuts 21. A waist ring 32 is fixedly assembled on the rubber capsule 10, and an air pipe 22 communicating with the interior of the rubber capsule 10 is fixedly assembled on the connecting flange 13. A pressure relief pipe 23 communicating with the interior of the rubber capsule 10 is fixedly assembled on the connecting flange 13. The pressure relief pipe 2 3 is fixedly equipped with a pressure relief valve 30. When the air pressure inside the rubber capsule 10 is too high, the balloon 31 expands under the action of the air pressure. At this time, the pressure relief valve 30 is controlled so that the pressure relief pipe 23 releases the high pressure in the rubber capsule 10 and the balloon 31 to a normal value. The rubber capsule 10 is expanded and contracted by the elastic spring 40, and the connecting disk 50 moves toward the inner bottom surface of the rubber capsule 10 until the sealing ring 60 on the connecting disk 50 is plugged into the sealing groove 53, so that the connecting hole 52 is blocked. The gas can only flow through the air pipe 22, so that the balloon 31 will not be damaged by the expansion of the gas flow, thereby protecting the balloon 31.
[0030] Working principle: When the air pressure inside the rubber capsule 10 is too high, the balloon 31 expands under the action of the air pressure. At this time, the pressure relief valve 30 is controlled so that the pressure relief pipe 23 relieves the high pressure in the rubber capsule 10 and the balloon 31 to a normal value. The rubber capsule 10 is expanded and contracted by the elastic spring 40, and the connecting disk 50 moves toward the inner bottom surface of the rubber capsule 10 until the sealing ring 60 on the connecting disk 50 is plugged into the sealing groove 53. The adjusting rod 43 and the limit block 42 move inside the mounting tube 41, and the expansion spring 51 contracts. The gas on the rubber capsule 10 cannot enter the balloon 31 through the connecting hole 52 in large quantities. The gas can only circulate through the trachea 22, so that the balloon 31 will not be damaged by the expansion of the gas circulation, thereby protecting the balloon 31. When the rubber capsule 10 leaks, the gas in the balloon 31 is insufficient, and the balloon 31 appears to be shrunk, which can be observed with the naked eye, prompting the user to replace the rubber capsule 10.
[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.
Claims
1. A novel pressure relief safety structure for an air spring, assembled on a rubber capsule (10), characterized in that: The bottom of the rubber capsule (10) is fixedly equipped with a connecting block (11), the side of the connecting block (11) is fixedly equipped with a butt joint (33), and the butt joint (33) is fixedly equipped with a balloon (31). The inner bottom surface of the rubber capsule (10) is provided with a connecting hole (52), and the connecting hole (52) is connected to the inside of the butt joint (33). The inner bottom surface of the rubber capsule (10) is provided with a sealing groove (53), and the sealing groove (53) is located outside the connecting hole (52). The inner top surface of the rubber capsule (10) is fixedly equipped with a mounting tube (41), and the inner part of the mounting tube (41) is movably equipped with a limit block (41). 2), an adjusting rod (43) is fixedly assembled on the limit block (42), the adjusting rod (43) movably penetrates the mounting tube (41), and a connecting disk (50) is fixedly assembled on the bottom of the adjusting rod (43), the connecting disk (50) is located above the sealing groove (53), and a sealing ring (60) is fixedly assembled on the bottom of the connecting disk (50), and the sealing ring (60) is plugged into the sealing groove (53) correspondingly. A telescopic spring (51) is assembled on the mounting tube (41) and the adjusting rod (43), and both ends of the telescopic spring (51) are fixedly assembled with the inner top surface of the rubber capsule (10) and the surface of the connecting disk (50) respectively.
2. A novel pressure relief safety structure for an air spring according to claim 1, characterized in that: An elastic spring (40) is fixedly mounted inside the rubber capsule (10), and a telescopic spring (51) is located inside the elastic spring (40).
3. The novel pressure relief safety structure of an air spring according to claim 1 is characterized in that: The top of the rubber capsule (10) and the bottom of the connecting block (11) are both fixedly mounted with a fixing flange (12), and a connecting flange (13) is mounted on the fixing flange (12).
4. The novel pressure relief safety structure of an air spring according to claim 3 is characterized in that: A plurality of fastening bolts (20) are assembled on the fixing flange (12) and the connecting flange (13), and nuts (21) are threadedly assembled on the fastening bolts (20).
5. The novel pressure relief safety structure of an air spring according to claim 3 is characterized in that: A waist ring (32) is fixedly mounted on the rubber capsule (10), and an air pipe (22) is fixedly mounted on the connecting flange (13), wherein the air pipe (22) is in communication with the interior of the rubber capsule (10).
6. The novel pressure relief safety structure of an air spring according to claim 3 is characterized in that: A pressure relief pipe (23) is fixedly mounted on the connecting flange (13), the interior of the pressure relief pipe (23) is communicated with the interior of the rubber capsule (10), and a pressure relief valve (30) is fixedly mounted on the pressure relief pipe (23).