A valve assembly for a gas cylinder

Abstract

The application discloses an inflating nozzle device, which comprises a pressing alignment mechanism and an inflating and deflating mechanism. The inflating and deflating mechanism comprises two sliding assemblies. Each sliding assembly comprises a horizontal guide rail extending in a horizontal direction, a sliding unit movably arranged on the horizontal guide rail and an elastic adjusting unit connected between the sliding unit and the horizontal guide rail. The two sliding assemblies comprise a first sliding assembly and a second sliding assembly. The horizontal guide rail of the first sliding assembly is connected to a sliding seat, the horizontal guide rail of the second sliding assembly is connected to the sliding unit of the first sliding assembly, and the extending directions of the horizontal guide rails of the first sliding assembly and the second sliding assembly intersect. A nozzle is connected to the sliding unit of the second sliding assembly, faces vertically downward, and is connected to a gas source in communication, so as to inflate and deflate a gas bag tray below the nozzle.

Description

Technical Field

[0001] This application relates to the field of mechanical automation technology, and in particular to an air inflator device. Background Technology

[0002] In lithium battery manufacturing, airbag trays can apply pressure to the battery cells through airbags and ensure uniform pressure distribution, thereby improving battery performance and production efficiency.

[0003] The airbag tray is mainly inflated and deflated by an automated inflation / deflation device. Specifically, after the airbag tray is transferred to the inflation / deflation device and precisely positioned, the downward alignment mechanism of the inflation / deflation device descends, causing the inflation / deflation mechanism of the inflation / deflation device to align with the air nozzle of the airbag tray for inflation / deflation.

[0004] However, due to positioning errors, the inflation / deflation mechanism of the inflation / deflation device may be misaligned when it mates with the air nozzle of the airbag tray, which can cause leakage of the airbag tray during inflation / deflation. Utility Model Content

[0005] This application discloses an inflation nozzle device that enables automatic alignment between the inflation / deflation mechanism and the inflation nozzle of the airbag tray when inflating or deflating the airbag tray.

[0006] To achieve the above objectives, this application discloses an inflation nozzle device for inflating and deflating an airbag tray, the inflation nozzle device comprising: The downward alignment mechanism includes: A vertical guide rail, which extends in the vertical direction; A sliding seat, which is movably mounted on the vertical guide rail; A driving element for driving the sliding seat to move along the vertical guide rail; and The inflation / deflation mechanism includes: Sliding components, wherein there are two sliding components, each of which includes: A horizontal guide rail, which extends in a horizontal direction; A sliding unit, which is movably mounted on the horizontal guide rail; An elastic adjustment unit is connected between the sliding unit and the horizontal guide rail, and is configured to apply an elastic force to the sliding unit so that the sliding unit returns to a preset alignment position under the action of the elastic force; wherein, the two sliding components include a first sliding component and a second sliding component, the horizontal guide rail of the first sliding component is connected to the sliding seat, the horizontal guide rail of the second sliding component is connected to the sliding unit of the first sliding component, and the extension directions of the horizontal guide rails of the first sliding component and the second sliding component intersect; An air nozzle is connected to the sliding unit of the second sliding assembly. The air nozzle faces vertically downward and is connected to an air source for inflating or deflating the airbag tray below the air nozzle.

[0007] Optionally, each of the sliding components includes two elastic adjustment units, which are respectively connected between the end of the horizontal guide rail and the end of the sliding unit.

[0008] Optionally, the elastic adjustment unit includes a tension spring, and the end of the horizontal guide rail is provided with a fixing part. The two ends of the tension spring are respectively connected to the fixing part and the sliding unit.

[0009] Optionally, the two elastic adjustment units of each sliding component are two identical tension springs, which are symmetrically arranged on both sides of the sliding unit so that the sliding unit moves to the preset alignment position under the elastic force of the two identical tension springs.

[0010] Optionally, the horizontal guide rail of the first sliding component is perpendicular to the extension direction of the horizontal guide rail of the second sliding component.

[0011] Optionally, the sliding unit of the first sliding component includes a first sliding block and a first connecting member. The first sliding block moves on the horizontal guide rail of the first sliding component. The first connecting member is used to connect the first sliding block and the horizontal guide rail of the second sliding component. The first connecting member includes a first extension and a second extension that are connected to each other. The first extension is connected to the first sliding block, and the second extension is connected to the horizontal guide rail of the second sliding component. The extension directions of the first extension and the first sliding block are the same, and the extension direction of the second extension is the same as the extension direction of the horizontal guide rail of the second sliding component.

[0012] Optionally, the sliding unit of the second sliding assembly includes a second sliding block and a second connecting member. The second sliding block moves on a horizontal guide rail of the second sliding assembly. The second connecting member is used to connect the second sliding block and the air nozzle. The second connecting member has a third extension extending in a vertical plane and a fourth extension extending in a horizontal plane. The third extension is connected to the second sliding block, and the fourth extension is connected to the air nozzle.

[0013] Optionally, the nozzle is provided with a sealing ring inside, which is used to seal the gap between the nozzle and the airbag tray when the airbag tray is inflated or deflated.

[0014] Optionally, the inflation / deflation mechanism further includes a pressure gauge, which is connected to the air nozzle.

[0015] Optionally, the pressing alignment mechanism includes a mounting plate, and the inflation nozzle device includes at least two inflation / deflation mechanisms, which are arranged horizontally and connected to the same side of the mounting plate, while the other side of the mounting plate is connected to the sliding seat.

[0016] Compared with the prior art, the beneficial effects of this application are at least as follows: According to the embodiments of this application, the inflator device drives a sliding seat to move on a vertical guide rail via a driving component. This causes the downward alignment mechanism to move the inflation / deflation mechanism vertically downwards, allowing the inflation / deflation mechanism to approach the airbag tray below the inflator device after being precisely positioned. When the inflator of the inflation / deflation mechanism contacts the airbag tray, the inflator interacts with the airbag tray's airbag nozzle. The two sliding components' horizontal guide rails intersect, and the sliding units of the two components move on their respective horizontal guide rails. This allows the airbag to move freely in the horizontal direction and adaptively adjust its position, ensuring automatic alignment between the inflator and airbag nozzles. This prevents leakage from the airbag tray due to misalignment during nozzle docking. The elastic adjustment unit connected between the sliding unit and the horizontal guide rail enables the air nozzle of the inflation / deflation mechanism to return to the preset alignment position after each inflation / deflation and separation from the airbag tray, thus avoiding the accumulation of errors and the situation where the air nozzle of the inflation / deflation mechanism deviates from the preset alignment position after multiple adaptive adjustments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an inflation nozzle device and its airbag tray according to an embodiment of this application; Figure 2 This is a schematic diagram of an air inflator device according to an embodiment of this application; Figure 3 This is a schematic diagram of the inflation / deflation mechanism in the inflation nozzle device according to an embodiment of this application; Figure 4 This is a top view of the inflation / deflation mechanism in the inflation nozzle device according to an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures: 1-Pressing alignment mechanism; 2-Inflation / depression mechanism; 11-Vertical guide rail; 12-Sliding seat; 13-Driver; 14-Mounting plate; 21-Sliding assembly; 22-Air nozzle; 23-Air source interface; 24-Connecting rod; 21a - First sliding component; 21b - Second sliding component; 211, 211a, 211b - Horizontal guide rails; 212, 212a, 212b - Sliding units; 213 - Elastic adjustment unit; 214 - Fixing part; 2121a - First sliding block; 2122a - First connecting member; 2121b - Second sliding block; 2122b - Second connecting member; 100 - Inflation nozzle device; 200 - Airbag tray. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0025] Airbag pallets achieve adaptive restraint and cushioning protection for goods by embedding inflatable airbags within their pallet structure. They are widely used in various fields such as battery manufacturing and precision component transportation. In lithium battery manufacturing, airbag pallets apply pressure to the battery cells through the airbags, ensuring uniform pressure distribution and thus improving battery performance and production efficiency. In practical applications, airbag pallets are primarily inflated and deflated using automated inflation / deflation equipment. Specifically, after the airbag pallet is transferred to the inflation / deflation equipment and precisely positioned, the equipment's downward alignment mechanism descends, and the inflation / deflation connector aligns with the air nozzle of the airbag pallet below for inflation / deflation. However, due to positioning errors in the airbag pallet or potential misalignment of the downward alignment mechanism during descent, the inflation / deflation connector may be misaligned when aligning with the air nozzle of the airbag pallet after descent, leading to incomplete inflation or leakage of the airbag pallet.

[0026] To address this issue, this application proposes an inflation nozzle device, wherein the nozzle of its inflation / deflation mechanism can move freely when it mates with the nozzle of the airbag tray. During the contact and continuous approach between the nozzle of the inflation / deflation mechanism and the nozzle of the airbag tray, the nozzle of the inflation / deflation mechanism can align with and seal the airbag tray's nozzle. This avoids leakage of the airbag tray due to misalignment during the mating of the nozzle of the inflation / deflation mechanism and the airbag tray's nozzle.

[0027] Figure 1 This is a schematic diagram of the inflator device 100 and its airbag tray 200 according to an embodiment of this application; Figure 2 This is a schematic diagram of an inflation nozzle device 100 according to an embodiment of this application. Figures 1 to 2 As shown, the inflation nozzle device 100 according to an embodiment of this application is used to inflate and deflate the airbag tray 200. The inflation nozzle device 100 may include a pressing alignment mechanism 1 and an inflation / deflation mechanism 2.

[0028] The downward alignment mechanism 1 may include a vertical guide rail 11, a sliding seat 12, and a driving member 13. The vertical guide rail 11 extends vertically and may be one or more. Sliding seats 12 are arranged in pairs with the vertical guide rail 11, and the number of sliding seats 12 is the same as the number of vertical guide rails 11. Each sliding seat 12 is mounted on the vertical guide rail 11 and is movable relative to it. The driving member 13 drives one or more sliding seats 12 to move synchronously along their respective vertical guide rails 11. The driving member 13 may be a cylinder or a motor, etc., and is not limited thereto.

[0029] Figure 3 and Figure 4 This is a schematic diagram and top view of the inflation / deflation mechanism 2 in the inflation nozzle device 100 according to an embodiment of this application. Figure 3 and Figure 4 As shown, the inflation / deflation mechanism 2 includes a sliding component 21 and an air nozzle 22.

[0030] There are two sliding components 21, and each sliding component 21 may include a horizontal guide rail 211, a sliding unit 212 and an elastic adjustment unit 213.

[0031] A horizontal guide rail 211 extends horizontally. A sliding unit 212 is mounted on the horizontal guide rail and is movable relative to the horizontal guide rail 211. An elastic adjustment unit 213 is connected between the sliding unit 212 and the horizontal guide rail 211, that is, the elastic adjustment unit 213 is connected between one end of the sliding unit 212 and the corresponding end of the horizontal guide rail 211. There can be one elastic adjustment unit 213, mounted on one side of the sliding unit 212; or two, mounted on opposite sides of the sliding unit 212. The elastic adjustment unit 213 is configured to apply an elastic force to the sliding unit 212, causing the sliding unit 212 to return to a preset alignment position under the action of the elastic force. The preset alignment position is, ideally, the position of the sliding unit 212 when the airbag tray 200 is precisely positioned, the inflation / deflation mechanism 2 of the inflation / deflation device 100 is lowered under the action of the downward alignment mechanism 1, and the nozzle of the inflation / deflation mechanism 2 is aligned with the nozzle of the airbag tray 200, with no eccentricity.

[0032] The two sliding components 21 include a first sliding component 21a and a second sliding component 21b. The horizontal guide rail 211a of the first sliding component 21a is connected to the sliding base 12. The horizontal guide rail 211b of the second sliding component 21b is connected to the sliding unit 212a of the first sliding component 21a. The extending directions of the horizontal guide rail 211a of the first sliding component 21a and the horizontal guide rail 211b of the second sliding component 21b intersect.

[0033] The air nozzle 22 is connected to the sliding unit 212b of the second sliding assembly 21b. The air nozzle 22 faces vertically downwards and is connected to an air source for inflating or deflating the airbag tray 200, which is precisely positioned and rests below the air nozzle 22. The air source can have positive and negative air pressure to inflate or deflate the airbag tray 200. The air nozzle 22 can be connected to the air source via the air source interface 23.

[0034] During the inflation and deflation of the airbag tray 200, after the airbag tray 200 is transferred to the inflation nozzle device 100 and precisely positioned, the downward alignment mechanism 1 of the inflation nozzle device 100 drives the inflation / deflation mechanism 2 to descend. During descent, the nozzle 22 of the inflation / deflation mechanism 2 first contacts the nozzle of the airbag tray 200. As the inflation / deflation mechanism 2 continues to descend, the nozzle 22, through interaction with the nozzle of the airbag tray 200, moves freely on the horizontal plane via the sliding unit 212a of the first sliding component 21a moving on the horizontal guide rail 211a and the sliding unit 212b of the second sliding component 21b moving on the horizontal guide rail 211b. This achieves alignment between the nozzle 22 of the inflation / deflation mechanism 2 and the nozzle of the airbag tray 200. After the airbag tray 200 is inflated or deflated, the air nozzle 22 of the inflation / deflation mechanism 2 separates from the airbag tray 200. Under the action of the elastic adjustment unit 213, the air nozzle 22 of the inflation / deflation mechanism 2 returns to the preset alignment position so that the airbag tray 200 that has been transferred to the inflation nozzle device 100 can be inflated or deflated again.

[0035] According to the embodiments of this application, the inflator device drives a sliding seat to move on a vertical guide rail via a driving component. This causes the downward alignment mechanism to move the inflation / deflation mechanism vertically downwards, allowing the inflation / deflation mechanism to approach the airbag tray below the inflator device after being precisely positioned. When the inflator of the inflation / deflation mechanism contacts the airbag tray, the inflator interacts with the airbag tray's airbag nozzle. The two sliding components' horizontal guide rails intersect, and the sliding units of the two components move on their respective horizontal guide rails. This allows the airbag to move freely in the horizontal direction and adaptively adjust its position, ensuring automatic alignment between the inflator and airbag nozzles. This prevents leakage from the airbag tray due to misalignment during nozzle docking. The elastic adjustment unit connected between the sliding unit and the horizontal guide rail enables the air nozzle of the inflation / deflation mechanism to return to the preset alignment position after each inflation / deflation and separation from the airbag tray, thus avoiding the accumulation of errors and the situation where the air nozzle of the inflation / deflation mechanism deviates from the preset alignment position after multiple adaptive adjustments.

[0036] The technical solutions of this application will be described in detail below with reference to specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0037] Optionally, each sliding component 21 includes two elastic adjustment units 213, which can be respectively connected between the end of the horizontal guide rail 211 and the corresponding end of the sliding unit 212. The elastic adjustment unit 213 can be an elastic band, spring, or other elastic element. The two elastic adjustment units 213 are respectively disposed between the left end of the horizontal guide rail 211 and the left end of the sliding unit 212, and between the right end of the horizontal guide rail 211 and the right end of the sliding unit 212.

[0038] By providing elastic adjustment units on both sides of the sliding unit, the air nozzle of the inflation / deflation mechanism can be stably and accurately returned to the preset alignment position at both ends away from the horizontal guide rail. Furthermore, since elastic adjustment units are provided on both sides of the sliding unit, when the air nozzle of the inflation / deflation mechanism adaptively adjusts its position through interaction with the air nozzle of the airbag tray, the elastic adjustment units can buffer the horizontal movement of the air nozzle, making the movement of the air nozzle smoother and preventing violent collisions between components during air nozzle movement.

[0039] Optionally, the elastic adjustment unit 213 may include a tension spring. A fixing part 214 may be provided at the end of the horizontal guide rail 211. The fixing part 214 may have a protruding support rod with a groove for fixing the tension spring, ensuring that the tension spring connected between the fixing part 214 and the sliding unit 212 remains horizontal, and the elastic force applied by the tension spring is always in the horizontal direction. Both ends of the tension spring are connected to the fixing part 214 and the sliding unit 212, respectively.

[0040] The elastic adjustment units on both sides of the sliding unit are set as tension springs. No matter which direction the sliding unit moves, the two tension springs are always in tension, continuously providing a relatively bidirectional and stable restoring force.

[0041] Optionally, the two elastic adjustment units 213 of each sliding component 21 are two identical tension springs, which are symmetrically arranged on both sides of the sliding unit 212 so that the sliding unit 212 moves to a preset alignment position under the elastic force of the two identical tension springs.

[0042] Because the sliding unit is symmetrically connected to both sides of the horizontal guide rail by two identical tension springs, it ensures that the preset alignment position of the sliding unit is located at the middle of the horizontal guide rail without interacting with the airbag tray. This makes the range of movement of the sliding unit symmetrical, and reduces the likelihood of collision between the sliding unit and the fixed part at either end of the horizontal guide rail. Furthermore, since the two identical tension springs are respectively located on both sides of the sliding unit, the force on the tension springs on both sides of the sliding unit is more balanced when the sliding unit moves towards either side of the horizontal guide rail, preventing excessive wear on either side of the tension spring and thus improving the service life of the inflation / deflation mechanism.

[0043] Optionally, the horizontal guide rail 211a of the first sliding component 21a is perpendicular to the extension direction of the horizontal guide rail 211b of the second sliding component 21b.

[0044] By setting the extension directions of the horizontal guide rails of the first and second sliding components to be perpendicular, the horizontal movement of the air nozzle of the inflation / deflation mechanism can be decomposed into movement along the extension direction of the horizontal guide rail of the first sliding component and movement along the extension direction of the horizontal guide rail of the second sliding component. These two movements are independent of each other, and movement in one direction will not interfere with movement in the other.

[0045] Optionally, the sliding unit 212a of the first sliding assembly 21a may include a first sliding block 2121a and a first connecting member 2122a. The first sliding block 2121a moves on the horizontal guide rail 211a of the first sliding assembly 21a; the first connecting member 2122a is used to connect the first sliding block 2121a to the horizontal guide rail 211b of the second sliding assembly 21b. The first connecting member 2122a includes a first extension and a second extension that are connected to each other. The first extension is connected to the first sliding block 2121a, and the second extension is connected to the horizontal guide rail 211b of the second sliding assembly 21b. The first extension and the first sliding block 2121a extend in the same direction, and the second extension extends in the same direction as the horizontal guide rail 211b of the second sliding assembly 21b.

[0046] By setting the first connector, the movement along the extension direction of the horizontal guide rail of the first sliding component is combined with the movement along the extension direction of the horizontal guide rail of the second sliding component, thereby realizing the free movement of the air nozzle of the inflation / deflation structure in the horizontal direction, and thus achieving adaptive adjustment of the air nozzle position.

[0047] Optionally, the sliding unit 212b of the second sliding assembly 21b may include a second sliding block 2121b and a second connecting member 2122b. The second sliding block 2121b moves on the horizontal guide rail 211b of the second sliding assembly 21b; the second connecting member 2122b is used to connect the second sliding block 2121b to the air nozzle 22. The second connecting member 2122b has a third extension extending in a vertical plane and a fourth extension extending in a horizontal plane. The third extension is connected to the second sliding block 2121b, and the fourth extension is connected to the air nozzle 22.

[0048] By setting a second connector, it can be ensured that the movement of the air nozzle is only along the horizontal direction, while its height in the vertical direction does not change. It can also be ensured that the direction of the air nozzle of the inflation / deflation structure is always facing vertically downward, and will not be deflected when interacting with the air nozzle of the airbag tray, thus affecting the air nozzle alignment.

[0049] Optionally, the inside of the air nozzle 22 may be provided with a sealing ring to seal the gap between the air nozzle and the air nozzle 22 of the airbag tray 200 when the airbag tray 200 is inflated or deflated.

[0050] A sealing ring inside the air nozzle ensures a reliable seal, preventing leakage during airbag tray inflation and deflation, which would affect the efficiency and effectiveness of airbag tray inflation and deflation. Furthermore, since the sealing ring is typically made of an elastic material, it also cushions the contact between the air nozzle of the inflation / deflation structure and the air nozzle of the airbag tray.

[0051] Optionally, the inflation / deflation mechanism 2 may also include a pressure gauge, which can be connected to the air nozzle via a connecting rod 24.

[0052] By setting a pressure gauge, the inflation and deflation of the airbag tray can be monitored, allowing for precise control of the inflation volume. The pressure gauge also allows for assessment of whether the air nozzles of the inflation / deflation mechanism are aligned with the air nozzles of the airbag tray, and whether leaks occur during inflation / deflation.

[0053] Optionally, the downward alignment mechanism 1 may include a mounting plate 14. The inflation nozzle device 100 may include at least two inflation / deflation mechanisms 2. The at least two inflation / deflation mechanisms 2 are arranged horizontally and connected to the same side of the mounting plate 14; the other side of the mounting plate 14 is connected to the sliding seat 12.

[0054] By providing at least two inflation / deflation mechanisms in the inflation nozzle device, the inflation nozzle device can simultaneously inflate and deflate at least two airbag trays or at least two parts of the airbag trays, thereby improving the inflation / deflation efficiency of the inflation nozzle device.

[0055] Optionally, the downward alignment mechanism 1 may also be equipped with a buffer. The buffer may be located vertically below the vertical guide rail 11 or connected to the drive member 13, so that when the sliding seat 12 descends to the lower end of the vertical guide rail 11, causing the air nozzle 22 of the inflation / deflation mechanism 2 to contact the air nozzle of the airbag tray 200 and continue to descend, the moving speed of the sliding seat 12 is reduced.

[0056] By setting a buffer to reduce the moving speed of the sliding seat at the lower end of the vertical guide rail, the time from contact to complete docking between the air nozzle of the inflation / deflation mechanism and the air nozzle of the airbag tray can be increased, which facilitates the adaptive adjustment of the air nozzle of the inflation / deflation mechanism in the horizontal direction, and avoids collision or damage caused by excessive speed when the air nozzle docks.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An inflation nozzle device for inflating and deflating an airbag tray, characterized in that, The inflation nozzle device includes: The downward alignment mechanism includes: A vertical guide rail, which extends in the vertical direction; A sliding seat, which is movably mounted on the vertical guide rail; A driving element for driving the sliding seat to move along the vertical guide rail; and The inflation / deflation mechanism includes: Sliding components, wherein there are two sliding components, each of which includes: A horizontal guide rail, which extends in a horizontal direction; A sliding unit, which is movably mounted on the horizontal guide rail; An elastic adjustment unit is connected between the sliding unit and the horizontal guide rail, and is configured to apply an elastic force to the sliding unit so that the sliding unit returns to a preset alignment position under the action of the elastic force; wherein, the two sliding components include a first sliding component and a second sliding component, the horizontal guide rail of the first sliding component is connected to the sliding seat, the horizontal guide rail of the second sliding component is connected to the sliding unit of the first sliding component, and the extension directions of the horizontal guide rails of the first sliding component and the second sliding component intersect; An air nozzle is connected to the sliding unit of the second sliding assembly. The air nozzle faces vertically downward and is connected to an air source for inflating or deflating the airbag tray below the air nozzle.

2. The inflation nozzle device according to claim 1, characterized in that, Each of the sliding components includes two elastic adjustment units, which are respectively connected between the end of the horizontal guide rail and the end of the corresponding sliding unit.

3. The inflation nozzle device according to claim 2, characterized in that, The elastic adjustment unit includes a tension spring, and a fixing part is provided at the end of the horizontal guide rail. The two ends of the tension spring are respectively connected to the fixing part and the sliding unit.

4. The inflation nozzle device according to claim 3, characterized in that, Each sliding component has two identical elastic adjustment units, which are symmetrically arranged on both sides of the sliding unit so that the sliding unit moves to the preset alignment position under the elastic force of the two identical springs.

5. The inflation nozzle device according to any one of claims 1 to 4, characterized in that, The horizontal guide rail of the first sliding component is perpendicular to the extension direction of the horizontal guide rail of the second sliding component.

6. The inflation nozzle device according to claim 5, characterized in that, The sliding unit of the first sliding component includes a first sliding block and a first connecting member. The first sliding block moves on the horizontal guide rail of the first sliding component. The first connecting member is used to connect the first sliding block and the horizontal guide rail of the second sliding component. The first connecting member includes a first extension and a second extension that are connected to each other. The first extension is connected to the first sliding block, and the second extension is connected to the horizontal guide rail of the second sliding component. The extension directions of the first extension and the first sliding block are the same, and the extension direction of the second extension is the same as the extension direction of the horizontal guide rail of the second sliding component.

7. The inflation nozzle device according to claim 6, characterized in that, The sliding unit of the second sliding assembly includes a second sliding block and a second connecting member. The second sliding block moves on a horizontal guide rail of the second sliding assembly. The second connecting member is used to connect the second sliding block and the air nozzle. The second connecting member has a third extension extending in a vertical plane and a fourth extension extending in a horizontal plane. The third extension is connected to the second sliding block, and the fourth extension is connected to the air nozzle.

8. The inflation nozzle device according to any one of claims 1 to 4, characterized in that, The nozzle is equipped with a sealing ring inside, which is used to seal the gap between the nozzle and the airbag tray when the airbag tray is inflated or deflated.

9. The inflation nozzle device according to any one of claims 1 to 4, characterized in that, The inflation / deflation mechanism also includes a pressure gauge, which is connected to the air nozzle.

10. The inflation nozzle device according to any one of claims 1 to 4, characterized in that, The downward alignment mechanism includes a mounting plate, and the inflation nozzle device includes at least two inflation / deflation mechanisms. The at least two inflation / deflation mechanisms are arranged horizontally and connected to the same side of the mounting plate. The other side of the mounting plate is connected to the sliding seat.

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