Passenger car pneumatic lift level adjustment device

Abstract

The utility model provides a passenger car pneumatic lifting horizontal adjusting device, including pneumatic lifting main part and be used for the inflation of pneumatic lifting main part and fill the air with the inflation device, the pneumatic lifting main part includes the inflation air bag and installs the folding guide plate subassembly in inflation air bag, and folding guide plate subassembly changes along with the inflation of inflation air bag and deflates and the corresponding deformation, and folding guide plate subassembly always supports the top of inflation air bag, the inflation air bag is equipped with the air inlet and the air outlet for the inflation of inflation air bag and the deflation of inflation air bag, compared with prior art, by setting up folding guide plate subassembly in inflation air bag, under the action of folding guide plate subassembly, can realize the airflow produced in the inflation of inflation air bag is divided into annular airflow and middle airflow, the airflow is resolved, prevents the concentrated impact of single airflow, and the reflux of annular airflow and middle airflow buffer formula intersection, reduce the impact of airflow to inflation air bag, the stable inflation of inflation air bag.

Description

Technical Field

[0001] This utility model relates to the field of airbag lifting technology, specifically to an airbag inflatable lifting level adjustment device for passenger vehicles. Background Technology

[0002] When parking cars, especially passenger vehicles such as motorhomes, there is a risk of horizontal tilting and tire sinking when parking on uneven surfaces. In addition, when parking for a long time, the tires may deform due to the single pressure point on the tires.

[0003] Chinese Patent No. CN216583971U discloses an airbag lifting device, including a moving device. The top surface of the moving device is provided with a lifting airbag. A driving device is provided on the side of the top surface of the moving device near the lifting airbag. An air inflator is provided in the middle of the driving device for quantitatively inflating the lifting airbag. An inflation device is provided at the bottom of the driving device.

[0004] The aforementioned airbag lifting device inflates the lifting airbag using an air pump. The inflated airbag then lifts the vehicle. However, during use, because the airbag is inflated via an air pump located on one side, it experiences unidirectional inflation pressure. This can easily cause the airbag to shift during inflation, affecting the stability and safety of the vehicle's tires during lifting. Furthermore, if the vehicle's tires are already offset from the center of the airbag before inflation, this offset will be exacerbated during inflation, further impacting the stability and safety of the vehicle's tires during lifting. Utility Model Content

[0005] The present invention aims to overcome the defects in the prior art and provide a passenger vehicle inflation and lifting level adjustment device that is stable inflatable and deflated, easy to store, and has a stable lifting effect.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a passenger vehicle inflatable lifting level adjustment device, comprising an inflatable lifting body and an inflator for inflating the inflatable lifting body; the inflatable lifting body includes an inflatable airbag and a folding guide plate assembly installed inside the inflatable airbag, the folding guide plate assembly deforming accordingly as the inflatable airbag is inflated or deflated; the inflatable airbag is provided with an air inlet for inflating the inflatable airbag and an air outlet for deflating the inflatable airbag, the folding guide plate assembly dividing the airflow generated by the inflatable airbag during the inflation process into an annular airflow surrounding the folding guide plate assembly and a central airflow passing through the folding guide plate assembly, the annular airflow returning and the central airflow converging in a buffered manner.

[0007] As a preferred embodiment of the present invention, the annular airflow includes a left annular airflow and a right annular airflow symmetrically arranged along the central airflow, and the left annular airflow and the right annular airflow converge in a buffered manner at the back of the folding guide plate assembly.

[0008] As a preferred embodiment of this utility model, the folding guide plate assembly divides the generated airflow into three independent airflows: a left annular airflow, a middle airflow, and a right annular airflow.

[0009] As a preferred embodiment of the present invention, the inflatable airbag has a spherical structure with both the bottom and top being flat, and the inflatable airbag is composed of a lower airbag membrane and an upper airbag membrane connected to each other.

[0010] In a preferred embodiment of this utility model, the folding guide plate assembly is located in the middle of the inflatable airbag, and the bottom of the folding guide plate assembly is connected to the lower airbag membrane, and the top of the folding guide plate assembly is connected to the upper airbag membrane.

[0011] As a preferred embodiment of this utility model, the air inlet nozzle and the air outlet nozzle are located on the same side of the folding guide plate assembly, and a through hole is formed in the middle of the folding guide plate assembly to facilitate the passage of airflow in the middle.

[0012] As a preferred embodiment of this utility model, the folding guide plate assembly is a vertical plate disposed inside the inflatable airbag, the vertical plate is disposed facing the air inlet and air outlet, and a through hole is formed in the middle of the vertical plate.

[0013] As a preferred embodiment of this utility model, the folding guide plate assembly is made of flexible material.

[0014] As a preferred embodiment of the present invention, the lower airbag membrane is covered with a lower mesh fabric for protecting the lower airbag membrane, and the upper airbag membrane is covered with an upper mesh fabric for protecting the upper airbag membrane.

[0015] As a preferred embodiment of the present invention, the inner layer of the upper mesh fabric is provided with a reinforcing layer for enhancing the tensile breaking strength and fatigue strength of the upper mesh fabric. The reinforcing layer includes a rigid plate connected to the inner layer of the upper mesh fabric and a sealing mesh fabric covering the rigid plate.

[0016] Compared with existing technologies, by setting a folding guide plate assembly inside the inflatable airbag, the airflow generated during the inflation process can be divided into annular airflow and central airflow under the action of the folding guide plate assembly. This decomposes the inflation airflow, prevents the concentrated impact of a single airflow, and at the same time, the return flow of the annular airflow and the central airflow converge in a buffered manner, reducing the impact of airflow on the inflatable airbag and ensuring the stable inflation of the inflatable airbag. The folding guide plate assembly and the lower airbag membrane can form a hollow cavity structure, and this cavity structure is set with an air inlet nozzle. During the inflation process, the airflow is first stored in this cavity structure, thereby realizing the inflation of the middle part of the airbag first, ensuring the stable structure of the airbag inflation from the inside out, and ensuring the stability and safety of the tire on the airbag. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the airflow inside this utility model; Figure 3 This is a structural schematic diagram of the folding guide plate assembly; Reference numerals: 1. Inflatable lifting body; 11. Inlet nozzle; 12. Outlet nozzle; 2. Inflatable airbag; 21. Upper airbag membrane; 22. Lower airbag membrane; 3. Folding guide plate assembly; 31. Vertical plate; 32. Top plate; 33. Connecting plate; 4. Reinforcing layer; 41. Hard plate; 42. Sealing mesh fabric; 5. Upper mesh fabric; 6. Lower mesh fabric; 71. Left annular airflow; 72. Right annular airflow; 73. Central airflow. Detailed Implementation

[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figures 1-3 As shown, the passenger vehicle inflatable lifting level adjustment device includes an inflatable lifting body 1 and an inflator for inflating the inflatable lifting body 1; the inflatable lifting body 1 includes an inflatable airbag 2 and a folding guide plate assembly 3 installed inside the inflatable airbag 2, the folding guide plate assembly 3 deforms accordingly as the inflatable airbag 2 is inflated and deflated; the inflatable airbag 2 is provided with an air inlet nozzle 11 for inflating the inflatable airbag 2 and an air outlet nozzle 12 for deflating the inflatable airbag 2, the folding guide plate assembly 3 divides the airflow generated by the inflatable airbag 2 during the inflation process into an annular airflow arranged around the folding guide plate assembly 3 and a central airflow 73 arranged through the folding guide plate assembly 3, the annular airflow returning and the central airflow 73 converging in a buffered manner.

[0020] The inflator supplies air to the airbag 2 through the air inlet nozzle 11, and under the continuous air intake of the air inlet nozzle 11, the airbag 2 is inflated. During the inflation of the airbag 2, the folded guide plate assembly 3 in the contracted state unfolds and resets as the internal space of the airbag 2 increases. The air outlet nozzle 12 is used to deflate the airbag 2, and the deflated airbag 2 is easy to store as a whole.

[0021] During inflation, annular airflow and central airflow are generated simultaneously inside the airbag 2. Under the buffering effect of the annular airflow return and the central airflow 73, the impact force generated by the annular airflow and the impact force generated by the central airflow 73 are partially offset, preventing a single impact force on the airbag 2 during inflation and reducing the overall impact force on the airbag 2 during inflation.

[0022] The annular airflow includes a left annular airflow 71 and a right annular airflow 72 symmetrically arranged along the central airflow 73. The left annular airflow 71 and the right annular airflow 72 converge in a buffered manner on the back of the folding guide plate assembly 3. Assuming the position with the air inlet nozzle 11 is the front of the inflatable airbag 2, the left annular airflow 71 and the right annular airflow 72 are generated from the front of the inflatable airbag 2 and flow along the inner wall of the inflatable airbag 2 toward the back of the inflatable airbag 2. The left annular airflow 71 and the right annular airflow 72 flowing to the back of the inflatable airbag 2 converge, achieving partial cancellation of the impact force of the left annular airflow 71 and the right annular airflow 72. The residual airflow forms the return airflow of the annular airflow. The return airflow exchanges with the central airflow 73, achieving partial cancellation of the impact force of the return airflow and the central airflow 73, thereby achieving the regular convergence of the overall airflow.

[0023] The inflatable airbag 2 with its spherical structure has an arc-shaped structure for both the left annular airflow 71 and the right annular airflow 72. The relatively arranged left annular airflow 71 and right annular airflow 72 inside the inflatable airbag 2 achieve uniform and symmetrical force distribution, ensuring stable inflation of the inflatable airbag 2.

[0024] The folding guide plate assembly 3 divides the generated airflow into three independent annular airflows: a left annular airflow 71, a middle airflow 73, and a right annular airflow 72. The left annular airflow 71, the middle airflow 73, and the right annular airflow 72 are arranged in sequence to ensure that the left annular airflow 71, the middle airflow 73, and the right annular airflow 72 do not interfere with each other in the initial flow state.

[0025] The inflatable airbag 2 has a spherical structure with a flat bottom and top. The inflatable airbag 2 is composed of a lower airbag membrane 22 and an upper airbag membrane 21 connected to each other. The lower airbag membrane 22 and the upper airbag membrane 21 are produced independently, which facilitates the installation of the folding guide plate assembly 3 between the lower airbag membrane 22 and the upper airbag membrane 21. The lower airbag membrane 22 and the upper airbag membrane 21 are connected by hot pressing or chemical bonding.

[0026] The folding guide plate assembly 3 is located in the middle of the inflatable airbag 2, and the bottom of the folding guide plate assembly 3 is connected to the lower airbag membrane 22, and the top of the folding guide plate assembly 3 is connected to the upper airbag membrane 21. The folding guide plate assembly 3 is made of flexible material.

[0027] The folding guide plate assembly 3 can be made of flexible materials such as silicone rubber or thermoplastic elastomer. When the inflatable airbag 2 is in the stored state, the folding guide plate assembly 3 is in a folded state due to its own flexibility. When the inflatable airbag 2 is in the inflated state, the internal space of the inflatable airbag 2 gradually increases under the inflation action. At the same time, since the top of the folding guide plate assembly 3 is connected to the upper airbag membrane 21 and the bottom of the folding guide plate assembly 3 is connected to the lower airbag membrane 22, as the distance between the lower airbag membrane 22 and the upper airbag membrane 21 gradually increases, the folding guide plate assembly 3 unfolds to form a hollow structure that satisfies the flow of the central airflow 73.

[0028] The air inlet nozzle 11 and the air outlet nozzle 12 are located on the same side of the folding guide plate assembly 3. The folding guide plate assembly 3 has a through hole in the middle to facilitate the passage of the central airflow 73. The air inlet nozzle 11 and the air outlet nozzle 12 are arranged adjacent to each other. Under the obstruction of the folding guide plate assembly 3, the inflation airflow is divided into a left annular airflow 71, a central airflow 73 and a right annular airflow 72. During the inflation process, the left annular airflow 71, the central airflow 73 and the right annular airflow 72 flow synchronously.

[0029] Example 1: The folding guide plate assembly 3 is a vertical plate 31 set inside the inflatable airbag 2. The vertical plate 31 is set facing the air inlet nozzle 11 and the air outlet nozzle 12, and a through hole is formed in the middle of the vertical plate 31.

[0030] Creases can be formed on the upright plate 31 to guide and limit the folding of the upright plate 31. The number and position of the creases can be set according to actual needs. The bottom of the upright plate 31 is connected to the lower airbag membrane 22 by hot pressing or chemical bonding. The top of the upright plate 31 is connected to the upper airbag membrane 21 by hot pressing or chemical bonding.

[0031] When the inflatable airbag 2 is in the stored state, the upright plate 31 is in a multi-layer folded state. During the inflation process, as the upper airbag membrane 21 moves upward, the top of the upright plate 31 is pulled upward, thereby unfolding the upright plate 31. The through hole in the middle of the upright plate 31 opens the air inlet 11. The upright plate 31 is in a vertical state after the inflatable airbag 2 is fully inflated.

[0032] The upright plate 31 is positioned facing the air inlet nozzle 11 and the air outlet nozzle 12, so that after the upright plate 31 is unfolded, the air inlet nozzle 11 and the air outlet nozzle 12 are positioned corresponding to the through holes in the middle of the upright plate 31, and the air inlet nozzle 11 and the air outlet nozzle 12 are positioned corresponding to the center of the upright plate 31, so that the air flow of the left annular airflow 71 and the right annular airflow 72 is relatively uniform under the action of the upright plate 31.

[0033] The vertical plate 31 facing the air intake nozzle 11 can also partially buffer the airflow, thereby slowing down the airflow speed and reducing the airflow impact force.

[0034] Based on Embodiment 1, the inner layer of the upper mesh fabric 5 is provided with a reinforcing layer 4 for enhancing the tensile breaking strength and fatigue strength of the upper mesh fabric 5. The reinforcing layer 4 includes a rigid plate 41 connected to the inner layer of the upper mesh fabric 5 and a sealing mesh fabric 42 covering the rigid plate 41.

[0035] The reinforcing layer 4 is used to strengthen the support strength of the top of the inflatable airbag 2, and also to strengthen the tensile breaking strength and fatigue strength of the upper mesh fabric 5. The rigid plate 41 can be a PC rigid plate structure.

[0036] In actual use, after parking the car in a safe position according to law, place the air-lift leveling device under the tire whose height needs to be adjusted, then drive the vehicle and adjust the tire axle of the air-lift leveling device. The air-lift leveling device has a center arrow indicator point in the middle. Align the tire axle with the center arrow indicator point of the airbag, tighten the car parking device, and use a manual air pump or electric air pump to connect the quick-connect fitting of the manual air pump or electric air pump to the air inlet nozzle 11. At this time, the air outlet nozzle 12 is in a sealed state and continuous inflation begins.

[0037] The inflation process continues until the lifting level adjustment device raises the tire to a position that is almost level with the other tires or to the height that the user needs to adjust. Due to the different loads of the vehicle itself, the lifting level adjustment device is set with a safe lifting air pressure value and a height value. The inflation process ends when either value reaches the limit.

[0038] When it is necessary to deflate the inflatable lifting level adjustment device, manually turn the deflate valve until the threaded part is completely disengaged and the gas is discharged from the vent nozzle 12. After the device is completely deflated and leveled, drive away from the vehicle and remove and fold the airbag for storage.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0040] Although this document frequently uses reference numerals from the accompanying drawings, such as: inflatable lifting body 1, air inlet nozzle 11, air outlet nozzle 12, inflatable airbag 2, upper airbag membrane 21, lower airbag membrane 22, folding guide plate assembly 3, upright plate 31, top plate 32, connecting plate 33, reinforcing layer 4, rigid plate 41, sealing mesh fabric 42, upper mesh fabric 5, lower mesh fabric 6, left annular airflow 71, right annular airflow 72, and central airflow 73, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A passenger vehicle inflatable lifting leveling device, comprising an inflatable lifting body (1) and an inflator for inflating the inflatable lifting body (1); characterized in that, The inflatable lifting body (1) includes an inflatable airbag (2) and a folding guide plate assembly (3) installed inside the inflatable airbag (2). The folding guide plate assembly (3) deforms accordingly as the inflatable airbag (2) is inflated and deflated. The inflatable airbag (2) is provided with an air inlet (11) for inflating the inflatable airbag (2) and an air outlet (12) for deflating the inflatable airbag (2). The folding guide plate assembly (3) divides the airflow generated by the inflatable airbag (2) during inflation into an annular airflow surrounding the folding guide plate assembly (3) and a central airflow (73) passing through the folding guide plate assembly (3). The annular airflow returns and the central airflow (73) converges in a buffered manner.

2. The passenger vehicle inflation lifting level adjustment device according to claim 1, characterized in that, The annular airflow includes a left annular airflow (71) and a right annular airflow (72) symmetrically arranged along the central airflow (73), and the left annular airflow (71) and the right annular airflow (72) converge in a buffered manner at the back of the folding guide plate assembly (3).

3. The passenger vehicle inflation lifting level adjustment device according to claim 2, characterized in that, The folding guide plate assembly (3) divides the generated airflow into three independent airflows: a left annular airflow (71), a middle airflow (73), and a right annular airflow (72).

4. The passenger vehicle inflation lifting level adjustment device according to claim 1, characterized in that, The inflatable airbag (2) has a spherical structure with a flat bottom and top, and the inflatable airbag (2) is composed of a lower airbag membrane (22) and an upper airbag membrane (21) connected to each other.

5. The passenger vehicle inflation lifting level adjustment device according to claim 1, characterized in that, The folding guide plate assembly (3) is located in the middle of the inflatable airbag (2), and the bottom of the folding guide plate assembly (3) is connected to the lower airbag membrane (22), and the top of the folding guide plate assembly (3) is connected to the upper airbag membrane (21).

6. The passenger vehicle inflation lifting level adjustment device according to claim 5, characterized in that, The air inlet nozzle (11) and the air outlet nozzle (12) are located on the same side of the folding guide plate assembly (3), and the folding guide plate assembly (3) has a through hole in the middle to facilitate the passage of airflow (73).

7. The passenger vehicle inflation lifting level adjustment device according to claim 5, characterized in that, The folding guide plate assembly (3) is a vertical plate (31) set inside the inflatable airbag (2). The vertical plate (31) is set facing the air inlet nozzle (11) and the air outlet nozzle (12), and a through hole is formed in the middle of the vertical plate (31).

8. The passenger vehicle inflation lifting level adjustment device according to claim 6, characterized in that, The folding guide plate assembly (3) is made of flexible material.

9. The passenger vehicle inflation lifting level adjustment device according to claim 4, characterized in that, The lower airbag membrane (22) is covered with a lower mesh fabric (6) for protecting the lower airbag membrane (22), and the upper airbag membrane (21) is covered with an upper mesh fabric (5) for protecting the upper airbag membrane (21).

10. The passenger vehicle inflation lifting level adjustment device according to claim 9, characterized in that, The inner layer of the upper mesh fabric (5) is provided with a reinforcing layer (4) for strengthening the tensile breaking strength and fatigue strength of the upper mesh fabric (5). The reinforcing layer (4) includes a hard plate (41) connected to the inner layer of the upper mesh fabric (5) and a sealing mesh fabric (42) covering the hard plate (41).

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