Pneumatic control shock absorbing seat

Abstract

The utility model relates to the technical field of automobile seat, concretely is a kind of pneumatic control shock absorbing seat, including chassis, seat and pneumatic shock absorbing component;Chassis includes upper frame and lower frame, and shear frame is arranged between upper frame and lower frame, and shear frame is symmetrically arranged between the both sides of upper frame and lower frame in two groups.The utility model is provided with the setting of chassis, seat and pneumatic component, when the seat structure in the cab is vibrated by the driving process of automobile, air bag can make seat repeatedly up and down movement in certain stroke range by repeated inflation and deflation, gradually offset the vibration effect directly conducted to seat in the process of continuous movement, so that the shock absorbing seat structure realizes shock absorption in effective stroke, thereby improve the comfort of driver, and the structure can realize the function of shock absorption for a long time, compared with traditional spring shock absorbing structure has higher service life.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and more specifically, to a pneumatically controlled shock-absorbing seat. Background Technology

[0002] When a car encounters bumpy roads while driving, it generates significant vibrations that are transmitted to the driver's seat. Prolonged exposure to these vibrations can easily lead to various ailments such as stomach problems, spinal disorders, and muscle fatigue. The most severe impact of vibrations is on the driver's vision, which can significantly reduce their attention and the accuracy of their actions, potentially causing accidents.

[0003] Most existing car seats achieve shock absorption through springs at the bottom of the seat. However, the springs cannot be controlled in their movement during the continuous compression and rebound under vibration, which can easily lead to a large range of seat movement, thus affecting the driver's comfort. In addition, the springs are prone to fatigue after being subjected to force for a long time, thus losing their elasticity and shock absorption effect. Utility Model Content

[0004] This invention provides a pneumatically controlled shock-absorbing seat, which solves the technical problem of poor fixation of the patient's head in the prior art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A pneumatically controlled shock-absorbing seat, characterized in that it comprises: a base frame, a seat, and a pneumatic shock-absorbing assembly;

[0007] The base frame includes an upper frame and a lower frame. A scissor frame is provided between the upper frame and the lower frame. The scissor frames are arranged in two symmetrical sets between the two sides of the upper frame and the lower frame. The scissor frame is composed of two sets of intersecting first and second connecting rods. A connecting shaft is provided in the middle of the scissor frame, and support shafts are connected to both the upper and lower ends of the scissor frame. The ends of the support shafts are slidably disposed in the inner sliding grooves of the upper frame and the lower frame, respectively.

[0008] The pneumatic shock absorber assembly includes an air reservoir, a regulating valve, a controller, and an airbag. The regulating valve is mounted on the first connecting rod of the scissor frame. One end of the controller is hinged to the connecting shaft, and the other end is hinged to the second connecting rod. The regulating valve includes an air source inlet, an inflation port, an air inlet switch, an exhaust switch, and an exhaust port. The air source inlet is connected to the air reservoir via a conduit, and the inflation port and the airbag exhaust port are respectively connected to the airbag via conduits.

[0009] Furthermore, an installation plate is fixedly installed at the middle position of both the upper frame and the lower frame. The two ends of the airbag are connected to the installation plate, and the diameter of the airbag is 90mm. The vertical extension height of the airbag is 35mm-70mm.

[0010] Furthermore, a set of dampers is provided between the upper frame and the lower frame, and the two ends of the dampers are respectively hinged to the middle crossbeam of the upper frame and the rear crossbeam of the lower frame.

[0011] Furthermore, the top surface of the upper frame is connected to the bottom of the seat base plate by two sets of parallel slide rails, and a U-shaped reinforcing rod is fixedly connected between the two sets of slide rails.

[0012] Furthermore, the air reservoir is a parking auxiliary air reservoir inside the vehicle, and the pneumatic shock absorber assembly also includes a set of three-way valves. The air inlet of the three-way valve is connected to the air reservoir through a conduit, and the two air outlets of the three-way valve are respectively connected to the air inlet of the vehicle brake hand control valve and the air source inlet of the regulating valve through conduits.

[0013] Furthermore, the connector of the three-way valve is a VOSS quick-connect connector.

[0014] Furthermore, the pneumatic shock absorber assembly also includes a set of low-pressure protection valves, which are fixedly installed on the rear side of the lower frame and connected between the air outlet of the three-way valve and the air source inlet of the regulating valve via a conduit.

[0015] Furthermore, the seat consists of a seat cushion, a backrest, and a headrest. The backrest is hinged to the seat cushion via a rotating support, and the headrest is inserted into the top of the backrest via a fixing rod at its bottom.

[0016] Furthermore, the seat cushion is composed of a stamped metal seat basin and a thin sponge pad.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: through the arrangement of the chassis, seat and pneumatic components, when the seat structure in the driver's cab is subjected to vibration during the driving process, the airbag can repeatedly inflate and deflate to make the seat move up and down repeatedly within a certain range of stroke. In the process of continuous movement, the vibration directly transmitted to the seat is gradually offset, so that the shock-absorbing seat structure can achieve shock absorption within the effective stroke, thereby improving the comfort of the driver. Moreover, this structure can achieve the function of shock absorption for a long time and has a longer service life than the traditional spring shock absorption structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0022] In the diagram: 10. Base frame; 101. Upper frame; 10101. Slide rail; 10102. U-shaped reinforcing bar; 102. Lower frame; 103. Scissor frame; 10301. First connecting rod; 10302. Second connecting rod; 10303. Connecting shaft; 10304. Support shaft; 104. Mounting plate; 105. Damper.

[0023] 20. Seat; 201. Seat cushion; 20101. Stamped metal seat basin; 20102. Thin sponge pad; 202. Backrest; 203. Headrest;

[0024] 30. Pneumatic shock absorber assembly; 301. Air tank; 302. Regulating valve; 30201. Air source inlet; 30202. Inflation port; 30203. Air inlet switch; 30204. Exhaust switch; 30205. Exhaust port; 303. Controller; 304. Airbag; 305. Three-way valve; 306. Low-pressure protection valve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-3 A pneumatically controlled shock-absorbing seat includes a base frame 10, a seat 20, and a pneumatic shock-absorbing assembly 30. The base frame 10 consists of an upper frame 101 and a lower frame 102 forming a double-layer structure. The lower frame 102 is fixedly installed in the driver's cab of a vehicle by screws. The seat 20 is installed on the upper frame 101. A scissor bracket 103 is provided between the upper frame 101 and the lower frame 102. The scissor brackets 103 are symmetrically arranged in two sets on both sides of the upper frame 101 and the lower frame 102. The scissor bracket 103 is composed of two sets of intersecting first connecting rods 10301 and second connecting rods 10302. The middle of the scissor bracket 103... A connecting shaft 10303 is positioned therein, and support shafts 10304 are connected to both the upper and lower ends of the scissor frame 103. The ends of the support shafts 10304 are slidably disposed in the inner sliding grooves of the upper frame 101 and the lower frame 102, respectively. When the upper frame 101 moves up and down relative to the lower frame 102, the scissor frame 103 will perform longitudinal or transverse scissor-like folding motion between the upper frame 101 and the lower frame 102. The pneumatic shock absorption assembly 30 includes an air tank 301, a regulating valve 302, a controller 303, and an air bag 304, wherein the regulating valve 302 is installed on the first connecting rod 10301 of the scissor frame 103. The controller 303 is hinged at one end to the connecting shaft 10303 and at the other end to the second connecting rod 10302. The regulating valve 302 includes an air source inlet 30201, an inflation port 30202, an air inlet switch 30203, an exhaust switch 30204, and an exhaust port 30205. The air source inlet 30201 is connected to the air storage tank 301 through a conduit. The inflation port 30202 and the airbag exhaust port are connected to the airbag 304 through conduits, respectively. The air inlet switch 30203 and the exhaust switch 30204 are both pressure-sensitive switches, and they are respectively located at the upper and lower parts of the side wall of the regulating valve 302. During the longitudinal or transverse scissor-like folding motion of the blade holder 103, the blade holder 103 will drive the controller 303 and the regulating valve 302 to move relative to each other, so that the controller 303 touches the air inlet switch 30203 and the air outlet switch 30204 on one side of the regulating valve 302 respectively. When the controller 303 touches the air inlet switch 30203, gas will be filled into the airbag 304 through the air inlet 30202. When the controller 303 touches the air outlet switch 30204, the gas in the airbag will be discharged through the air outlet 30205, thereby completing the inflation and deflation of the airbag.

[0028] When the car is in motion, causing vibrations in the seat structure within the driver's cab, the upper frame 101 in the chassis 10 moves up and down relative to the lower frame 102. When the upper frame 101 moves downwards and approaches the lower frame 102, the scissor arm 103 performs a lateral scissor-like folding motion. During this process, the scissor arm 103 causes the controller 303 to contact the air intake switch 30203 on the regulating valve. This triggers the regulating valve 302, allowing gas from the air reservoir 301 to be injected into the airbag 304 through the inflation port 30202. The airbag 304 inflates, causing the upper frame 101 to move upwards. As the upper frame 101 moves upwards and away from the lower frame 102, the scissor arm 103 performs a longitudinal folding motion. During the scissor-like folding motion, the scissor arm 103 causes the controller 303 to contact the exhaust switch 30204 on the regulating valve. At this time, the regulating valve 302 is triggered to release the gas in the airbag 304 through the exhaust port 30205. The deflation and contraction of the airbag 304 causes the upper frame 102 to move downward. Following the above steps, the upper frame 102 drives the seat 20 mounted on it to move up and down repeatedly. During the continuous movement, the vibration directly transmitted to the seat 20 is gradually offset, so that the shock-absorbing seat structure can achieve shock absorption within the effective stroke, thereby improving the driver's comfort. Moreover, this structure can achieve the function of shock absorption for a long time and has a longer service life than the traditional spring shock absorption structure.

[0029] For further details, please refer to Figure 1-3 An installation plate 104 is fixedly installed at the middle position of the upper frame 101 and the lower frame 102. The two ends of the airbag 304 are connected to the installation plate 104. The diameter of the airbag 304 is 90mm. The vertical extension height of the airbag 304 is 35mm-75mm, which allows the airbag 304 to be compactly and reasonably installed between the upper frame 101 and the lower frame 102, and reasonably limits the movement of the upper frame.

[0030] For further details, please refer to Figure 1-3 A set of dampers 105 is provided between the upper frame 101 and the lower frame 102. When the upper frame 101 moves up and down relative to the lower frame 102, the dampers 105 can buffer the kinetic energy of 101 and prevent 101 from rising or falling instantly. When used in conjunction with the airbag 304, the shock absorption effect is further improved. The two ends of the dampers 105 are respectively hinged to the middle crossbeam of the upper frame 101 and the rear crossbeam of the lower frame 102, so that the dampers 105 are tilted as a whole, which reasonably saves the space occupied by them.

[0031] For further details, please refer to Figure 1-3The top surface of the upper frame 101 is connected to the bottom of the base plate of the seat 20 by two sets of parallel slide rails 10101, so that the position between the seat 20 and the upper frame 101 can be adjusted. A U-shaped reinforcing rod 10102 is fixedly connected between the two sets of slide rails 10101 to provide stable support for the two sets of slide rails 10101 and prevent deformation between them.

[0032] For further details, please refer to Figure 1-3 The air reservoir 301 serves as the vehicle's internal parking auxiliary air reservoir, allowing the pneumatic damping assembly 30 of the seat structure to share a single pipeline with the parking brake system, without any connection to the service brake, thus ensuring high safety performance. The pneumatic damping assembly 30 also includes a three-way valve 305. The air inlet of the three-way valve 305 is connected to the air reservoir 301 via a conduit, and the two air outlets of the three-way valve 305 are respectively connected via conduits to the air inlet of the vehicle's brake hand control valve and the air source inlet 30201 of the regulating valve 302. With this design, the pneumatic damping assembly 30 of the seat structure draws air from the air inlet pipe of the parking brake hand control valve. The parking brake hand control valve is located close to the seat, allowing the air in the air reservoir 301 to be directly distributed from this location, thus eliminating the need to rearrange the pipeline from the air reservoir 301 to draw air. To save development costs, the three-way valve uses a VOSS quick-connect fitting, facilitating manual assembly. It's also worth noting that, to ensure reliable air intake, the pneumatic shock absorber assembly 30 includes a low-pressure protection valve 306, fixedly installed on the rear side of the lower frame 102. This valve is connected via a conduit between the outlet of the three-way valve 305 and the air inlet of the regulating valve 302. Its preset pressure range is 0.55MPa-1.3MPa. Only when the system pressure exceeds 0.55MPa will the airbag 304 be inflated via the regulating valve 302. If the airbag 304 leaks, causing a low system pressure, the air supply from the air reservoir 301 to the airbag is cut off, ensuring the air reservoir 301 supplies air to the parking brake hand control valve, thus preventing any impact on the vehicle's parking brake.

[0033] For further details, please refer to Figure 1-3 The seat 20 consists of a seat cushion 201, a backrest 202, and a headrest 203. The backrest 202 is hinged to the seat cushion 201 via a rotating support, and the headrest 203 is inserted into the top of the backrest 202 via a fixing rod at its bottom. When the driver sits on the seat 201, his back and head can rest on the backrest 202 and the headrest 203, thus ensuring driving comfort. The headrest 203 can be removed from the backrest 202, and the backrest 202 can also be flipped forward and folded into the seat cushion 201. At this time, the backrest 202 can be laid flat on the seat cushion 201, and the driver can lie down on the backrest 202 to rest, realizing the function of lying down and resting in the driver's cab.

[0034] For further details, please refer to Figure 1-3 The seat cushion 201 adopts a combined design structure of stamped metal seat basin 20101 and thin sponge pad 20102, which makes the overall structure of the seat cushion 201 compact and ensures the strength of the seat cushion 201.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pneumatically controlled shock absorbing seat, characterized by include: The base frame (10), seat (20) and aerodynamic shock absorber assembly (30); The base frame (10) includes an upper frame (101) and a lower frame (102). A scissor frame (103) is provided between the upper frame (101) and the lower frame (102). The scissor frames (103) are arranged in two symmetrical sets between the two sides of the upper frame (101) and the lower frame (102). The scissor frame (103) is composed of two sets of intersecting first connecting rods (10301) and second connecting rods (10302). A connecting shaft (10303) is provided in the middle position of the scissor frame (103). Both the upper and lower ends of the scissor frame (103) are connected to support shafts (10304). The ends of the support shafts (10304) are slidably disposed in the inner sliding grooves of the upper frame (101) and the lower frame (102). The pneumatic shock absorber assembly (30) includes an air tank (301), a regulating valve (302), a controller (303), and an airbag (304). The regulating valve (302) is mounted on the first connecting rod (10301) of the scissor frame (103). One end of the controller (303) is hinged to the connecting shaft (10303), and the other end is hinged to the second connecting rod (10302). The regulating valve (302) includes an air source inlet (30201), an inflation port (30202), an air inlet switch (30203), an exhaust switch (30204), and an exhaust port (30205). The air source inlet (30201) is connected to the air tank (301) through a conduit. The inflation port (30202) and the airbag exhaust port are respectively connected to the airbag (304) through conduits.

2. The pneumatic control shock absorbing seat of claim 1, wherein, Mounting plates (104) are fixedly installed at the middle positions of the upper frame (101) and the lower frame (102). The two ends of the airbag (304) are connected to the mounting plates (104), and its diameter is 90mm. The vertical extension height of the airbag (304) is 35mm-75mm.

3. The pneumatic control shock absorbing seat of claim 1, wherein, A set of dampers (105) is provided between the upper frame (101) and the lower frame (102), and the two ends of the dampers (105) are respectively hinged to the middle crossbeam of the upper frame (101) and the rear crossbeam of the lower frame (102).

4. The pneumatic control shock absorbing seat of claim 1, wherein, The top surface of the upper frame (101) is connected to the bottom of the base plate of the seat (20) by two sets of parallel slide rails (10101), and a U-shaped reinforcing rod (10102) is fixedly connected between the two sets of slide rails (10101).

5. The pneumatic control shock absorbing seat of claim 1, wherein, The air reservoir (301) is a parking auxiliary air reservoir inside the vehicle. The pneumatic shock absorber assembly (30) also includes a set of three-way valves (305). The air inlet of the three-way valve (305) is connected to the air reservoir (301) through a conduit. The two air outlets of the three-way valve (305) are respectively connected to the air inlet of the vehicle brake hand control valve and the air source inlet (30201) of the regulating valve (302) through conduits.

6. The pneumatic control shock absorbing seat of claim 5, wherein, The connector of the three-way valve is a VOSS quick-connect connector.

7. The pneumatic control shock absorbing seat of claim 6, wherein, The pneumatic shock absorber assembly (30) also includes a set of low-pressure protection valves (306), which are fixedly installed on the rear side of the lower frame (102) and connected to the air outlet of the three-way valve (305) and the air source inlet of the regulating valve (302) through a conduit.

8. The pneumatic control shock absorbing seat of claim 1, wherein, The seat (20) consists of a seat cushion (201), a backrest (202) and a headrest (203). The backrest (202) is hinged to the seat cushion (201) by a rotating support, and the headrest (203) is inserted into the top of the backrest (202) by a fixing rod at its bottom.

9. The pneumatic control shock absorbing seat of claim 8, wherein, The seat cushion (201) is composed of a stamped metal seat basin (20101) and a thin sponge pad (20102).

Images