External auxiliary air bag type shock absorber

Abstract

The utility model provides an external auxiliary air bag type shock absorber which comprises an upper connector, an air bag, a dust cover, a mounting seat fixedly connected to the bottom of the upper connector, an upper spring separator fixedly connected to the bottom of the mounting seat, a pipe sleeve fixedly connected to the bottom of the upper spring separator, a lower spring separator fixedly connected to the bottom of the pipe sleeve, and an upper clamping groove formed in the bottom of the upper spring separator. An upper clamping groove is formed in the top of the lower spring separator, an upper clamping ring and a lower clamping ring are arranged at the two ends of the air bag and installed between the upper clamping groove and the lower clamping groove respectively, an inner cavity is formed in the air bag, the outer wall of the air bag is fixedly connected with an inflation connector, the inflation connector is fixedly connected with an inflation pump, the dustproof cover is fixedly connected to the outer wall of the pipe sleeve, and a spiral spring is arranged on the outer wall of the dustproof cover. The two ends of the spiral spring are fixedly connected with the sensors, the compression degree of the spiral spring can be monitored in real time through the sensors, and when the spiral spring is excessively compressed, the sensors feed back information in real time and adjust the working state of the inflation pump, so that the ideal pressure of the cavity in the air bag is kept.

Description

Technical Field

[0001] The utility model relates to the field of shock absorbers, in particular to an external auxiliary air bag type shock absorber. Background Art

[0002] Traditional ordinary structures or coil spring structures often produce some aftershocks when the car passes through bumpy roads or encounters vibrations. These aftershocks will directly affect the comfort experience of passengers. In order to improve this problem, the role of shock absorbers is particularly important. Shock absorbers absorb these aftershocks and play a buffering role, thereby greatly improving the comfort of riding. In this way, shock absorbers ensure that passengers can enjoy a smooth and comfortable experience during driving, further improving the overall performance and driving experience of the car.

[0003] In a standard shock absorption system, in addition to the main load-bearing component, the coil spring, an auxiliary shock absorption device is usually configured to achieve the function of buffering and absorbing impact. When the shock absorber is subjected to a large workload, an auxiliary buffer spring is introduced to alleviate related problems. However, due to the limitations of the spring design, the loading height of the vehicle cannot be changed, so a low stiffness and high height spring design must be adopted. This design may cause the spring to bend during the compression process, which may interfere with the shock absorber or produce abnormal noise. In addition, the coil spring will produce aftershocks due to actual road conditions during the up and down movement, and the aftershocks will have a negative impact on ride comfort.

[0004] For this reason, an external auxiliary air bag shock absorber is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an external auxiliary airbag shock absorber.

[0006] The utility model is implemented by the following technical solutions:

[0007] External auxiliary air bag shock absorber, including

[0008] An upper connection, wherein the bottom of the upper connection is fixedly connected to the mounting seat, the bottom of the mounting seat is fixedly connected to the upper spring separator, the bottom of the upper spring separator is fixedly connected to a pipe sleeve, the bottom of the pipe sleeve is fixedly connected to a lower spring separator, the bottom of the upper spring separator is provided with an upper slot, and the top of the lower spring separator is provided with a lower slot;

[0009] An airbag, wherein an upper snap ring and a lower snap ring are provided at both ends of the airbag, the upper snap ring and the upper slot are in an assembly relationship, the lower snap ring and the lower slot are in an assembly relationship, the upper snap ring is connected to the upper slot, the lower snap ring is connected to the lower slot, an inner cavity is provided in the airbag, an inflation interface is fixedly connected to the outer wall of the airbag, an air pump is fixedly connected to the inflation interface, and pipes are fixedly connected to both sides of the air pump;

[0010] A dust cover, the dust cover is fixedly connected to the outer wall of the pipe sleeve, the outer wall of the dust cover is provided with a coil spring, the top of the coil spring is connected to the bottom of the upper spring separator, the bottom of the coil spring is connected to the top of the lower spring separator, and both ends of the coil spring are fixedly connected to sensors;

[0011] The shock absorber body is fixedly connected to the bottom of the lower spring separator. A working chamber is provided in the shock absorber body. A piston rod is installed in the working chamber. The piston rod passes through the top of the shock absorber body and is installed in a pipe sleeve.

[0012] As a preferred solution of the present invention, the end of the piston rod is fixedly connected to a piston, a rebound stopper is provided above the piston, and the rebound stopper is fixedly connected to the piston rod.

[0013] As a preferred solution of the present invention, an oil valve is fixedly connected to the bottom of the working chamber, and an oil storage tank is provided between the outer wall of the working chamber and the inner wall of the shock absorber body.

[0014] As a preferred solution of the present invention, an oil seal is provided at the bottom of the lower spring separator.

[0015] As a preferred solution of the present invention, the bottom of the shock absorber body is fixedly connected with a lower connection.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. An upper snap-in groove is provided at the bottom of the upper spring separator, a lower snap-in groove is provided at the top of the lower spring separator, and upper and lower snap-in rings are provided at both ends of the airbag. The upper snap-in ring and the upper snap-in groove are in an assembly relationship, and the lower snap-in ring and the lower snap-in groove are in an assembly relationship. The upper snap-in ring is connected in the upper snap-in groove, and the lower snap-in ring is connected in the lower snap-in groove. The airbag is installed between the upper spring separator and the lower spring separator by plugging, which realizes quick installation and disassembly, reduces maintenance difficulty, and improves usage efficiency.

[0018] 2. An inner cavity is provided in the airbag, and an inflation interface is fixedly connected to the outer wall of the airbag. An air pump is fixedly connected to the inflation interface, and pipes are fixedly connected on both sides of the air pump. The pressure of the cavity in the airbag can be adjusted by the air pump to assist the shock absorber in shock absorption. The pressure of the air pump is adjusted according to road conditions. When the car is driving on a highway, the air pump will reduce the inflation volume of the inner cavity of the airbag, making the shock absorber tougher. When the car is on a city road or a country road, the air pump will increase the inflation volume of the inner cavity of the airbag, making the shock absorber softer, so as to provide a more comfortable riding experience.

[0019] 3. An oil seal is installed at the bottom of the lower spring separator to effectively prevent oil leakage and ensure the service life of the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the main structure diagram of the shock absorber of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 This is the exploded structural diagram of the arc correction device and bending device of the utility model;

[0023] Figure 4 This is a structural diagram of the coil spring of the utility model;

[0024] Figure 5 This is a structural diagram of the utility model air pump;

[0025] In the figure: 1. Upper connection; 2. Lower connection; 3. Upper spring separator; 4. Lower spring separator; 5. Pipe sleeve; 6. Dust cover; 7. Oil seal; 8. Coil spring; 9. Sensor; 10. Upper slot; 11. Lower slot; 12. Airbag; 13. Inner cavity; 14. Inflating interface; 15. Inflating pump; 16. Pipeline; 17. Working chamber; 18. Piston rod; 19. Shock absorber body; 20. Rebound block; 21. Piston; 22. Oil valve; 23. Oil storage tank; 24. Mounting seat; 25. Upper retaining ring; 26. Lower retaining ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Example:

[0028] See also Figure 1-Figure 5, external auxiliary air bag shock absorber, including:

[0029] The upper connection 1 is fixedly connected to the mounting seat 24 at the bottom, and the bottom of the mounting seat 24 is fixedly connected to the upper spring separator 3. The bottom of the upper spring separator 3 is fixedly connected to the pipe sleeve 5, and the bottom of the pipe sleeve 5 is fixedly connected to the lower spring separator 4. The bottom of the upper spring separator 3 is provided with an upper groove 10, and the top of the lower spring separator 4 is provided with a lower groove 11;

[0030] The airbag 12 has an upper snap ring 25 and a lower snap ring 26 at both ends of the airbag 12. The upper snap ring 25 is assembled with the upper groove 10, and the lower snap ring 26 is assembled with the lower groove 11. The upper snap ring 25 is connected to the upper groove 10, and the lower snap ring 26 is connected to the lower groove 11. An inner cavity 13 is provided in the airbag 12. An inflation interface 14 is fixedly connected to the outer wall of the airbag 12. An air pump 15 is fixedly connected to the inflation interface 14. Both sides of the air pump 15 are fixedly connected to pipes 16.

[0031] The dust cover 6 is fixedly connected to the outer wall of the pipe sleeve 5. The outer wall of the dust cover 6 is provided with a coil spring 8. The top of the coil spring 8 is connected to the bottom of the upper spring separator 3. The bottom of the coil spring 8 is connected to the top of the lower spring separator 4. Both ends of the coil spring 8 are fixedly connected to sensors 9.

[0032] The shock absorber body 19 is fixedly connected to the bottom of the lower spring separator 4. A working chamber 17 is provided in the shock absorber body 19. A piston rod 18 is installed in the working chamber 17. The piston rod 18 passes through the top of the shock absorber body 19 and is installed in the pipe sleeve 5.

[0033] In this embodiment, the upper connection 1 is used to connect to the vehicle chassis, and the bottom of the upper connection 1 is fixedly connected to a mounting seat 24, and the mounting seat 24 is used to fixedly connect the upper spring separator 3, and the bottom of the upper spring separator 3 is fixedly connected to a pipe sleeve 5, and the bottom of the pipe sleeve 5 is fixedly connected to the lower spring separator 4. The bottom of the upper spring separator 3 is provided with an upper card groove 10, and the top of the lower spring separator 4 is provided with a lower card groove 11. At both ends of the airbag 12, the airbag 12 is stably placed between the upper card groove 10 and the lower card groove 11 by assembling the upper snap ring 25 and the lower snap ring 26 to ensure its good fixity and mobility. The airbag 12 is provided with an inner cavity 13, and the outer wall of the airbag 12 is fixedly connected to the inflation interface 14, and the inflation pump 15 is fixedly connected to the inflation interface 14. Both sides of the inflation pump 15 are fixedly connected to the pipe 16. The material of the airbag 12 It has a radial rubber structure. The connecting pipes 16 on both sides of the air pump 15 are used to absorb and release the air pressure in the inner cavity 13. A dust cover 6 is fixedly connected to the outer wall of the sleeve 5 to prevent dust and debris from invading the interior of the shock absorber body 19. A coil spring 8 is provided on the outer wall of the dust cover 6. The top of the coil spring 8 is connected to the bottom of the upper spring separator 3, and the bottom of the coil spring 8 is connected to the top of the lower spring separator 4. Both ends of the coil spring 8 are fixedly connected to sensors 9, and the sensor 9 can monitor the compression degree of the coil spring 8 in real time. The air pump 15 is adjusted by the sensor 9 to work. The bottom of the shock absorber body 19 is fixedly connected to the shock absorber body 19. A working chamber 17 is provided inside the shock absorber body 19, which contains a piston rod 18, which can move up and down during the vehicle driving to absorb the impact force caused by uneven road conditions and perform shock absorption.

[0034] Specifically, a piston 21 is fixedly connected to the end of the piston rod 18 , a rebound stopper 20 is provided above the piston 21 , and the rebound stopper 20 is fixedly connected to the piston rod 18 .

[0035] In this embodiment, the end of the piston rod 18 is fixedly connected to a piston 21, and a rebound block 20 is provided above the piston 21. Through the piston 21, the rebound block 20 and the piston rod 18 move up and down in the working chamber 17 to perform shock absorption.

[0036] Specifically, an oil valve 22 is fixedly connected to the bottom of the working chamber 17 , and an oil storage tank 23 is provided between the outer wall of the working chamber 17 and the inner wall of the shock absorber body 19 .

[0037] In this embodiment, an oil valve 22 is fixedly connected to the bottom of the working chamber 17, and an oil storage tank 23 is provided between the outer wall of the working chamber 17 and the inner wall of the shock absorber body 19. The hydraulic oil in the working chamber 17 is squeezed to the oil valve 22 through the piston 21 through the up and down movement of the piston rod 18 and flows into the oil storage tank 23. When the piston rod 18 is pressed downward, the hydraulic oil in the oil storage tank 23 is quickly squeezed out, generating reverse resistance to the piston 21. When the piston 21 moves upward, the hydraulic oil in the oil storage tank enters the working chamber 17 through the oil valve 22, forming an efficient buffering effect, thereby ensuring the stability of the vehicle's driving and the comfort of the ride.

[0038] Specifically, an oil seal 7 is provided at the bottom of the lower spring separator 4 .

[0039] In this embodiment, an oil seal 7 is provided at the contact position between the lower spring separator 4 and the shock absorber body 19 to effectively prevent oil leakage and ensure the service life of the shock absorber body 19.

[0040] Specifically, the bottom of the shock absorber body 19 is fixedly connected with a lower connection 2 .

[0041] In this embodiment, the bottom of the shock absorber body 19 is fixedly connected with a lower connection 2, and the lower connection 2 is used to facilitate installation and replacement, and at the same time ensure the stability of the connection between the shock absorber body 19 and the vehicle.

[0042] The principle of the present utility model is: the hydraulic oil in the working chamber 17 is squeezed to the oil valve 22 through the up and down movement of the piston rod 18 and flows into the oil storage tank 23 through the piston 21. When the piston rod 18 is pressed downward, the hydraulic oil in the oil storage tank 23 is quickly squeezed out, generating reverse resistance to the piston 21. When the piston 21 moves upward, the hydraulic oil in the oil storage tank enters the working chamber 17 through the oil valve 22. During the up and down movement of the piston 21, the coil spring 8 fixedly installed between the upper spring separator 3 and the lower spring separator 4 absorbs part of the energy. The sensor 9 fixed at both ends of the coil spring 8 can monitor the compression degree of the coil spring 8 in real time. When the coil spring 8 is over-compressed, the sensor 9 immediately feeds back information and adjusts the working state of the inflation pump 15, so that the cavity in the airbag 12 can maintain an ideal pressure, thereby effectively coping with complex road conditions and improving the driving experience.

[0043] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. External auxiliary air bag shock absorber, characterized in that: include: An upper connection, wherein the bottom of the upper connection is fixedly connected to the mounting seat, the bottom of the mounting seat is fixedly connected to the upper spring separator, the bottom of the upper spring separator is fixedly connected to a pipe sleeve, the bottom of the pipe sleeve is fixedly connected to a lower spring separator, the bottom of the upper spring separator is provided with an upper slot, and the top of the lower spring separator is provided with a lower slot; An airbag, wherein an upper snap ring and a lower snap ring are provided at both ends of the airbag, the upper snap ring and the upper slot are in an assembly relationship, the lower snap ring and the lower slot are in an assembly relationship, the upper snap ring is connected to the upper slot, the lower snap ring is connected to the lower slot, an inner cavity is provided in the airbag, an inflation interface is fixedly connected to the outer wall of the airbag, an air pump is fixedly connected to the inflation interface, and pipes are fixedly connected to both sides of the air pump; A dust cover, the dust cover is fixedly connected to the outer wall of the pipe sleeve, the outer wall of the dust cover is provided with a coil spring, the top of the coil spring is connected to the bottom of the upper spring separator, the bottom of the coil spring is connected to the top of the lower spring separator, and both ends of the coil spring are fixedly connected to sensors; The shock absorber body is fixedly connected to the bottom of the lower spring separator. A working chamber is provided in the shock absorber body. A piston rod is installed in the working chamber. The piston rod passes through the top of the shock absorber body and is installed in a pipe sleeve.

2. The external auxiliary airbag shock absorber according to claim 1, characterized in that: The end of the piston rod is fixedly connected to a piston, a rebound stopper is provided above the piston, and the rebound stopper is fixedly connected to the piston rod.

3. The external auxiliary airbag shock absorber according to claim 2, characterized in that: An oil valve is fixedly connected to the bottom of the working chamber, and an oil storage tank is provided between the outer wall of the working chamber and the inner wall of the shock absorber body.

4. The external auxiliary airbag shock absorber according to claim 3, characterized in that: An oil seal is provided at the bottom of the lower spring separator.

5. The external auxiliary airbag shock absorber according to claim 4, characterized in that: The bottom of the shock absorber body is fixedly connected with a lower connection.

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