Film air spring structure

Abstract

The invention discloses a film air spring structure, and relates to the technical field of damping accessories, the film air spring structure comprises a supporting assembly, the supporting assembly comprises a base, a transmission piece is arranged on the outer side of the base, a top plate is slidably connected to the top of the base, a rubber film is fixed to the inner top of the base, and a partition plate is arranged at the bottom of the rubber film; and the gas transmission assembly is arranged on the partition plate and comprises a hollow shell hole fixed in the base. The rubber film damping device has the beneficial effects that through arrangement of the gas transmission assembly, the abutting assembly and the driving assembly, introduced or exhausted gas can be uniformly distributed, so that uniform circulation of the gas is guaranteed, deformation uniformity of a rubber film is guaranteed, stable up-and-down movement of the top plate is facilitated, and under cooperation of the abutting assembly and the driving assembly, according to the actual damping requirement, the damping effect is improved. The gas circulation quantity on the gas transmission assembly is flexibly controlled, and various damping and buffering protection requirements are met without intervention of an additional gas source and gas pump equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of shock-absorbing accessories, in particular to a film air spring structure. Background Art

[0002] A thin-film air spring is a device that achieves elastic support and vibration isolation by sealing compressed air with an elastic diaphragm. Its core principle is to use the compressibility of gas to provide nonlinear stiffness characteristics, while achieving height and damping control through air pressure regulation. It is widely used in vibration reduction protection of precision motion platforms, optical equipment, semiconductor equipment, and automobile engines.

[0003] The film air spring in the existing technology is generally divided into two air chambers, which are connected to the valve with a pipe, but the pipe is a single design and is eccentrically installed on the equipment. In this design, when the gas flows in or out, the gas flow in the chamber will be asymmetric, and the film will undergo irregular deformation, affecting the stability of the supporting action and is not conducive to uniform buffering protection. It is also difficult to perform secondary buffering adjustment. When subjected to vibration, the shock absorption performance is fixed and cannot be easily adjusted and adapted, which has certain limitations. Summary of the Invention

[0004] In view of the above problems existing in the existing thin film air spring structure, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that the ventilation pipe in the membrane air spring in the prior art is eccentrically installed on the equipment. When the gas flows in or out, the membrane will undergo irregular deformation, affecting the stability of the supporting action, and is not conducive to uniform buffering protection. It is also difficult to perform secondary buffering adjustment.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a thin film air spring structure, comprising: A support assembly includes a base, a transmission member is provided on the outside of the base, a top plate is slidably connected to the top of the base, a rubber film is fixed to the top of the base, and a partition plate is provided at the bottom of the rubber film; and The gas delivery assembly is arranged on the partition plate, and includes a hollow shell fixed in the base, a ring plate fixed at the center of the hollow shell, an air hole is opened on the top of the ring plate, an opening and closing member is arranged on the outside of the hollow shell, and a buffer member is arranged on the top of the hollow shell; The pressing assembly is arranged in the base, including a fixed cylinder fixed in the base, an elastic block is fixed to the bottom end of the fixed cylinder, a rotating frame is arranged in the base, a pressing head is fixed to the outer end of the rotating frame, a gear ring is arranged at the center of the outer side of the rotating frame, a gear plate is arranged outside the gear ring, a fixed seat is rotatably connected to the bottom of the base, a driven bevel gear is fixed to the outer ring of the fixed seat, and a screw sleeve is arranged on the top of the fixed seat; The driving assembly is arranged on one side of the base and includes a handwheel located outside the base. A movable rod is fixed to the output end of the handwheel, and a driving bevel gear is fixed to the other end of the movable rod.

[0007] As a preferred solution of the thin film air spring structure described in the present invention, wherein: an air injection valve is fixed to the outer ring of the base, a horizontal adjustment bolt is installed on one side of the base, the transmission component includes a first air head fixed to the bottom of the outer ring of the base, a second air head is fixed to the top of the outer ring of the base, a regulating valve is fixed between the first air head and the first air head, a horizontal control air valve is fixed to the top of the top plate, and a sealing hole is opened on the top of the partition plate.

[0008] As a preferred solution of the film air spring structure described in the present invention, the opening and closing member includes a positioning frame fixed to the inner ring of the hollow shell, a sealing plate is rotatably connected to the positioning frame, a support rod is provided on one side of the sealing plate, and is slidably connected to the sealing hole.

[0009] As a preferred solution of the thin film air spring structure described in the present invention, wherein: a torsion spring is sleeved on the positioning frame, one end of the torsion spring is fixed on the positioning frame, and the other end of the torsion spring is fixed on the sealing plate, a guide groove is opened on the surface of the sealing plate, and the top end of the support rod is rotatably connected to the displacement frame and is slidably connected to the guide groove.

[0010] As a preferred solution of the thin film air spring structure described in the present invention, the buffer component includes a sleeve fixed to the top of the hollow shell, a sealing block is slidably connected in the sleeve, a first spring is fixed at the top and bottom of the sealing block, the other end of the first spring is fixed in the sleeve, a sliding rod is fixed at the top and bottom of the sealing block, the sliding rod is located in the first spring, and the sleeve is located at the top of the through hole.

[0011] As a preferred solution of the thin film air spring structure described in the present invention, wherein: an extension tube is fixed at the center of the rotating frame, the gear ring is fixed to the outer ring of the extension tube, the gear ring is engaged with the tooth plate, a slide is fixed at the bottom of the tooth plate, a positioning head is slidably connected to the slide, a protruding rod is fixed to the bottom of the slide, a bracket is rotatably connected at the center of the rotating frame, and a fixing frame is fixed to the bottom of the bracket.

[0012] As a preferred solution of the film air spring structure described in the present invention, a slide is slidably connected in the fixed seat, an auxiliary groove is provided on the top of the slide and is slidably connected to the protruding rod, a connecting frame is fixed on the top of the slide, and the other end of the connecting frame is fixed to the outer ring of the screw sleeve.

[0013] As a preferred solution of the film air spring structure described in the present invention, an anti-slip seat is fixed in the elastic block, one end of the positioning head is fixed on the bracket, there are several pressure heads, the widths of the multiple pressure heads are different, and the screw sleeve is threadedly connected to the elastic block.

[0014] As a preferred solution of the film air spring structure described in the present invention, the handwheel is rotatably connected to an auxiliary frame, one side of the auxiliary frame is fixed to the outer ring of the base, a first pointing groove is provided on the handwheel, a second pointing groove is provided on one side of the auxiliary frame, and the second pointing groove cooperates with the first pointing groove, a rotation counter is installed on the movable rod, and an anti-slip part is installed on the outer ring of the movable rod, including an auxiliary seat fixed to the inner bottom of the base, one side of the auxiliary seat is rotatably connected to a rotary block, a card slot is provided on the outer ring of the rotary block, a second spring is fixed to the top of the auxiliary seat, a displacement rod is fixed to the other end of the second spring, and a card head is fixed to one side of the displacement rod.

[0015] As a preferred solution of the film air spring structure of the present invention, a buffer seat is fixed to the inner ring of the base, and the top of the buffer seat is in contact with the bottom of the top plate.

[0016] The beneficial effects of the present invention are as follows: through the arrangement of the gas transmission component, the pressure component and the drive component, the gas input or exhaust gas can be evenly distributed by the gas transmission component to ensure uniform gas circulation, thereby ensuring uniform deformation of the rubber film, which is beneficial to the stable up and down movement of the top plate. In addition, with the cooperation of the pressure component and the drive component, the amount of gas flowing on the gas transmission component can be flexibly controlled according to actual shock absorption requirements, and a variety of shock absorption and buffering protection requirements can be met without the intervention of additional gas sources and air pump equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a structural diagram of the film air spring structure.

[0019] Figure 2 It is a cross-sectional view of the film air spring structure.

[0020] Figure 3 Another perspective view of the half-section support component of the thin film air spring structure.

[0021] Figure 4 This is the installation diagram of the air supply component, pressure component and drive component of the thin film air spring structure.

[0022] Figure 5 This is a structural diagram of the air supply component, pressure component and drive component of the thin film air spring structure.

[0023] Figure 6 This is a partial structural diagram of the air delivery component of the thin film air spring structure.

[0024] Figure 7 Thin film air spring structure Figure 6 Enlarged view of point A in the middle.

[0025] Figure 8 Thin film air spring structure Figure 6 Enlarged view of point B in the middle.

[0026] Figure 9 A top view of the ring plate of the thin film air spring structure.

[0027] Figure 10 Another perspective view of the half-section of the pressure component of the film air spring structure.

[0028] Figure 11 This is a structural diagram of the drive component of the thin film air spring structure.

[0029] Figure 12 Thin film air spring structure Figure 11 Enlarged view of point C in the middle.

[0030] In the figure: 1. Support assembly; 11. Base; 11-1. Air injection valve; 11-2. Horizontal adjustment bolt; 12. Transmission element; 12-1. First air head; 12-2. Second air head; 12-3. Regulating valve; 13. Top plate; 13-1. Horizontal control air valve; 14. Rubber film; 15. Separator; 15-1. Sealing hole; 16. Buffer seat; 2. Air transmission assembly; 21. Hollow shell; 21- 1. Through hole; 22. Ring plate; 22-1. Air hole; 23. Opening and closing member; 23-1. Positioning frame; 23-11. Torsion spring; 23-2. Sealing plate; 23-21. Guide groove; 23-3. Support rod; 23-4. Displacement frame; 24. Buffer member; 24-1. Sleeve; 24-2. Sealing block; 24-3. First spring; 24-4. Sliding rod; 3. Pressing assembly; 31. Fixing cylinder; 31- 1. Elastic block; 31-11. Anti-slip seat; 32. Rotating frame; 32-1. Pressing head; 32-2. Extension tube; 32-3. Ring gear; 32-4. Tooth plate; 32-5. Slide plate; 32-6. Positioning head; 32-7. Protruding rod; 32-8. Bracket; 32-9. Fixed frame; 33. Fixed seat; 33-1. Driven bevel gear; 33-2. Slide; 33-21. Auxiliary groove; 33-3. Connecting frame; 33-4, screw sleeve; 4, driving assembly; 41, handwheel; 41-1, first pointing slot; 42, movable rod; 43, active bevel gear; 44, auxiliary frame; 44-1, second pointing slot; 45, rotation counter; 46, anti-slip part; 46-1, auxiliary seat; 46-2, rotary block; 46-21, clamping slot; 46-3, displacement rod; 46-31, clamping head; 46-4, second spring. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments. Example 1

[0034] Reference Figure 1 and Figure 2, which is the first embodiment of the present invention, provides a thin film air spring structure, which includes a support component 1, a gas supply component 2, a pressure component 3 and a drive component 4. Through the arrangement of the gas supply component 2, the pressure component 3 and the drive component 4, the gas supply component 2 can evenly distribute the incoming or exhausted gas to ensure uniform gas circulation and uniform membrane deformation, which is conducive to stable up and down movement of shock absorption. In addition, with the cooperation of the pressure component 3 and the drive component 4, the amount of gas flowing on the gas supply component 2 can be flexibly controlled according to actual shock absorption needs, and a variety of shock absorption and buffering protection needs can be met without the intervention of additional gas sources and air pump equipment.

[0035] Specifically, the support assembly 1 includes a base 11, a transmission member 12 is provided on the outside of the base 11, a top plate 13 is slidably connected to the top of the base 11, a rubber film 14 is fixed to the top of the base 11, and a partition plate 15 is provided at the bottom of the rubber film 14.

[0036] The partition plate 15 can be set to divide the base 11 into two air chambers, the upper one is a bearing air chamber for the deformation of the rubber film 14, and the lower one is a damping air chamber. The bearing air chamber and the damping air chamber are connected by a transmission part 12. The working principle of this part is all existing technology, which can be clearly understood by those skilled in the art and will not be elaborated here.

[0037] Specifically, the gas transmission component 2 is arranged on the partition plate 15, and includes a hollow shell 21 fixed in the base 11, a ring plate 22 is fixed at the center of the hollow shell 21, an air hole 22-1 is opened on the top of the ring plate 22, an opening and closing part 23 is provided on the outside of the hollow shell 21, and a buffer part 24 is provided on the top of the hollow shell 21.

[0038] By setting the ring plate 22 and the air holes 22-1, the transmission gas can be redistributed, so that the gas can be evenly input or discharged through the buffer member 24, ensuring the uniformity of the deformation of the rubber film 14, thereby helping to improve the stability of the upper and lower buffering movements of the top plate 13.

[0039] The buffer part 24 can be blocked or opened by setting the opening and closing parts 23, so that in the blocked state, the gas is prevented from being transmitted through the buffer part 24, and the buffering performance of the buffer part 24 cannot be utilized. In the open state, the gas flows normally through the buffer part 24 and is buffered. By controlling different numbers of opening and closing parts 23 to block the buffer part 24, a variety of shock absorption and buffering needs can be met.

[0040] The buffer member 24 is provided to perform secondary buffering when the gas flows through, and a plurality of buffer members 24 cooperate to meet different shock absorption protection requirements.

[0041] Specifically, the pressing assembly 3 is arranged in the base 11, including a fixed cylinder 31 fixed in the base 11, an elastic block 31-1 is fixed to the bottom end of the fixed cylinder 31, a rotating frame 32 is provided in the base 11, a pressing head 32-1 is fixed to the outer end of the rotating frame 32, a gear ring 32-3 is provided at the center of the outer side of the rotating frame 32, a gear plate 32-4 is provided outside the gear ring 32-3, a fixed seat 33 is rotatably connected to the bottom of the base 11, a driven bevel gear 33-1 is fixed to the outer ring of the fixed seat 33, and a screw sleeve 33-4 is provided on the top of the fixed seat 33.

[0042] The bottom of the outer ring of the fixing tube 31 and the outer ring of the elastic block 31-1 are both provided with screw threads, which are threadedly connected to the screw sleeve 33-4. The elastic block 31-1 is elastically designed and will maintain an outward expansion state under the action of external force.

[0043] Specifically, the driving assembly 4 is provided on one side of the base 11 and includes a hand wheel 41 located outside the base 11 . A movable rod 42 is fixed to the output end of the hand wheel 41 , and a driving bevel gear 43 is fixed to the other end of the movable rod 42 .

[0044] The driving bevel gear 43 is meshed with the driven bevel gear 33 - 1 . When the driving hand wheel 41 rotates and the movable rod 42 drives the driving bevel gear 43 to rotate, the fixed seat 33 rotates under the meshing transmission of the driven bevel gear 33 - 1 . Example 2

[0045] Reference Figures 2 to 12 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0046] Specifically, an injection valve 11-1 is fixed to the outer ring of the base 11, a horizontal adjustment bolt 11-2 is installed on one side of the base 11, the transmission component 12 includes a first gas head 12-1 fixed to the bottom of the outer ring of the base 11, a second gas head 12-2 is fixed to the top of the outer ring of the base 11, a regulating valve 12-3 is fixed between the first gas head 12-1 and the first gas head 12-1, a horizontal control gas valve 13-1 is fixed to the top of the top plate 13, and a sealing hole 15-1 is opened at the top of the partition plate 15.

[0047] During actual operation, the operator can adjust the ventilation aperture by driving the regulating valve 12-3 to rotate, so as to change the gas flow between the bearing air chamber and the damping air chamber on the base 11 and adjust the shock absorption response time. The working principles of this part are all existing technologies, which can be clearly understood by those skilled in the art and will not be elaborated here.

[0048] One end of the gas injection valve 11-1 is connected to the bottom of the inner cavity of the damping air chamber of the base 11, one end of the first gas head 12-1 is connected to the top of the inner cavity of the damping air chamber of the base 11, and one end of the second gas head 12-2 is connected to the inner cavity of the hollow shell 21 and is located at the bottom of the ring plate 22. That is, the gas transmitted through the second gas head 12-2 will first enter the hollow shell 21, and then be redistributed by the ring plate 22 and the air hole 22-1 to ensure uniform gas distribution.

[0049] There are a number of air holes 22-1 evenly distributed on the ring plate 22, and the inner diameters of the multiple air holes 22-1 are different. The closer the air hole 22-1 is to the second air head 12-2, the smaller the inner diameter is, and the farther the air hole 22-1 is from the second air head 12-2, the larger the inner diameter is.

[0050] The diameter of the air hole 22-1 is 2-5 mm (increasing from near to far), ensuring that the uniformity of gas distribution is ≥90%.

[0051] The horizontal control valve 13-1 is linked with the inclination sensor (not shown in the figure) and the control system to achieve real-time horizontal correction. It can automatically correct the tilt deviation of the top plate 13 by adjusting the air pressure of the bearing air chamber; the horizontal adjustment bolt 11-2 can be pre-adjusted by the operator to ensure the flatness of the bottom of the base 11. The working principle of this part is all existing technology, which can be clearly understood by those skilled in the art and will not be elaborated here.

[0052] The opening and closing member 23 includes a positioning frame 23-1 fixed to the inner ring of the hollow shell 21, and a sealing plate 23-2 is rotatably connected to the positioning frame 23-1. A support rod 23-3 is provided on one side of the sealing plate 23-2, and is slidably connected to the sealing hole 15-1 and sealed.

[0053] A torsion spring 23-11 is sleeved on the positioning frame 23-1, one end of the torsion spring 23-11 is fixed to the positioning frame 23-1, and the other end of the torsion spring 23-11 is fixed to the sealing plate 23-2. A guide groove 23-21 is provided on the surface of the sealing plate 23-2. The top end of the support rod 23-3 is rotatably connected to the displacement frame 23-4 and is slidably connected to the guide groove 23-21.

[0054] The torsion spring 23 - 11 can provide elastic torsion for the sealing plate 23 - 2 , preventing the sealing plate 23 - 2 from rotating and closing at will in the absence of external force. When the sealing plate 23 - 2 is in the closed state, the buffer member 24 can be covered and sealed.

[0055] Both ends of the displacement frame 23-4 and the inner cross-section of the guide groove 23-21 are designed in a T-shape, which limits the movement stroke of the displacement frame 23-4 and is used to prevent the displacement frame 23-4 from completely separating from the sealing plate 23-2.

[0056] The buffer member 24 includes a sleeve 24-1 fixed to the top of the hollow shell 21, a sealing block 24-2 is slidably connected in the sleeve 24-1, a first spring 24-3 is fixed on the top and bottom of the sealing block 24-2, the other end of the first spring 24-3 is fixed in the sleeve 24-1, and the sleeve 24-1 is located at the top of the through hole 21-1.

[0057] The elastic coefficient of the first spring 24 - 3 is 8-12 N / mm, and the maximum deformation is 20 mm, which ensures uniform buffering force during gas circulation.

[0058] When the gas flows through the buffer member 24, whether it is intake or exhaust, it will press against the sealing block 24-2 to cause the first spring 24-3 to undergo elastic deformation, thereby achieving the function of auxiliary buffer protection. As different numbers of buffer members 24 are opened for ventilation, different degrees of buffer protection can be achieved.

[0059] The number of support rods 23-3 is the same as that of sleeves 24-1 and is evenly distributed on the hollow shell 21. The specifications of the support rods 23-3 are larger than the end surface specifications of the slide rods 24-4, so that when the support rods 23-3 are closed, the sleeves 24-1 can be fully sealed.

[0060] Slide rods 24-4 are fixed to the top and bottom of the sealing block 24-2. The slide rods 24-4 are located inside the first spring 24-3. The slide rods 24-4 can prevent the first spring 24-3 from bending and affecting the secondary buffering performance. An extension tube 32-2 is fixed at the center of the rotating frame 32, and the ring gear 32-3 is fixed to the outer ring of the extension tube 32-2. The ring gear 32-3 is engaged with the tooth plate 32-4. A slide plate 32-5 is fixed to the bottom of the tooth plate 32-4. A positioning head 32-6 is slidably connected to the slide plate 32-5. A protruding rod 32-7 is fixed to the bottom of the slide plate 32-5. A bracket 32-8 is rotatably connected to the center of the rotating frame 32, and a fixing bracket 32-9 is fixed to the bottom of the bracket 32-8.

[0061] The bottom of the fixed frame 32-9 is fixed to the center of the bottom of the inner cavity of the base 11. A through groove is opened in the slide 33-2, which is slidably connected to the fixed frame 32-9. The bottom shape of the slide 33-2 is hexagonal, which matches the shape of the inner cavity of the fixed seat 33 to drive the slide 33-2 to rotate synchronously when the fixed seat 33 rotates.

[0062] A slide 33-2 is slidably connected in the fixed seat 33. An auxiliary groove 33-21 is provided on the top of the slide 33-2 and is slidably connected to the protruding rod 32-7. A connecting frame 33-3 is fixed on the top of the slide 33-2. The other end of the connecting frame 33-3 is fixed to the outer ring of the screw sleeve 33-4.

[0063] An anti-slip seat 31-11 is fixed inside the elastic block 31-1, one end of the positioning head 32-6 is fixed on the bracket 32-8, there are several pressing heads 32-1, and the widths of the multiple pressing heads 32-1 are different. The screw sleeve 33-4 is threadedly connected to the elastic block 31-1.

[0064] The anti-slip seat 31 - 11 is matched with the support rod 23 - 3 in shape, and is used to increase the contact area with the support rod 23 - 3 in the locked state, thereby achieving a good locking effect.

[0065] As shown in the accompanying drawings Figure 10 As shown, the connecting frame 33-3 and the rotating frame 32, and the bracket 32-8 and the pressing head 32-1 are all staggered, that is, the rotating frame 32 will not contact or collide with the connecting frame 33-3 when rotating, and the pressing head 32-1 will not hit the bracket 32-8 when rotating.

[0066] By meshing the gear ring 32-3 and the tooth plate 32-4, when the tooth plate 32-4 moves up and down, the extension tube 32-2 and the rotating frame 32 can be linked to rotate together under the meshing transmission of the gear ring 32-3, thereby adjusting the contact and pressure of the pressure heads 32-1 at different positions with the support rods 23-3. At this time, due to the different positions of the pressure heads 32-1, different numbers of support rods 23-3 can be pressed upward, thereby causing different numbers of sealing plates 23-2 to rotate and close.

[0067] The slide plate 32 - 5 is provided with a positioning groove, which is slidably connected to the positioning head 32 - 6 , so that the positioning head 32 - 6 guides the linear displacement of the slide plate 32 - 5 to prevent the slide plate 32 - 5 from rotating.

[0068] The cross-sectional shapes of the bottom end of the protruding rod 32-7 and the auxiliary groove 33-21 are both T-shaped. This design has an anti-slip feature, ensuring that the protruding rod 32-7 can be installed on the slide 33-2 without slipping. When the slide 33-2 rotates, the protruding rod 32-7 will not rotate. When the slide 33-2 moves up and down, the protruding rod 32-7 moves up and down synchronously.

[0069] When in use, the support assembly 1 is installed at the bottom of the equipment support as a shock-absorbing and buffering component, such as a precision motion platform, optical equipment, semiconductor equipment, and automobile engine production equipment. First, an appropriate amount of compressed gas is introduced into the base 11 through the gas injection valve 11-1. The gas is transmitted through the first gas head 12-1, the regulating valve 12-3 and the second gas head 12-2, and then distributed in the bearing gas chamber and the damping gas chamber of the base 11, and is supported by the rubber film 14 tightly against the top plate 13.

[0070] When the device vibrates, the top plate 13 moves up and down, causing the rubber film 14 to undergo elastic deformation and the amount of gas in the load-bearing air chamber to change. Together with the transmission element 12 and the damping air chamber, a buffering protection effect can be achieved.

[0071] Taking the transmission of gas from the damping air chamber to the carrying air chamber as an example, the gas enters the hollow shell 21 through the second gas head 12-2, and is redistributed in cooperation with the ring plate 22 and the air hole 22-1, so that the gas is evenly discharged upward from multiple through holes 21-1. At this time, if the buffer part 24 is in the open state, the sealing block 24-2 will move upward, and the first spring 24-3 will be stretched or compressed, thereby achieving the effect of auxiliary buffer protection.

[0072] According to the actual shock absorption and buffering requirements, the operator can actively drive the handwheel 41 to rotate forward. Under the connection of the movable rod 42, the active bevel gear 43 and the driven bevel gear 33-1 cooperate to make the fixed seat 33 rotate, and then the slide 33-2, the connecting frame 33-3 and the screw sleeve 33-4 rotate forward. Under the action of the fixed cylinder 31 and the elastic block 31-1, the screw sleeve 33-4 rotates and moves downward at the same time. With the cooperation of the protruding rod 32-7 and the auxiliary groove 33-21, the slide plate 32-5 moves downward synchronously on the positioning head 32-6.

[0073] As the handwheel 41 rotates, the screw sleeve 33-4 and the slide plate 32-5 gradually move downward until the tooth plate 32-4 moves downward and engages with the gear ring 32-3. At this time, when the screw sleeve 33-4 moves further, the gear ring 32-3 drives the extension tube 32-2 and the rotating frame 32 to rotate. According to the rotation angle of the handwheel 41, different pressure heads 32-1 can be adjusted to the bottom of the fixed tube 31, and contact and press with the bottom of the corresponding number of support rods 23-3, so that the corresponding support rods 23-3 move upward.

[0074] With the cooperation of the displacement frame 23-4 and the guide groove 23-21, the sealing plate 23-2 rotates around the positioning frame 23-1, and the torsion spring 23-11 is tightened, so that the sealing plate 23-2 finally seals and covers the sleeve 24-1. At this time, the buffer part 24 at the corresponding position cannot circulate gas and loses its buffering function. Therefore, it is only necessary to flexibly control the rotation angle of the handwheel 41 to flexibly adjust the corresponding number of buffer parts 24 to be closed, and thus the overall performance of the auxiliary buffer can be flexibly adjusted.

[0075] In actual application, when the support assembly 1 is idle or just being used, there is no compressed gas in the base 11. At this time, it is only necessary to control the rotation of the handwheel 41 and adjust the screw sleeve 33-4 to the lowest point of the elastic block 31-1. With the cooperation of the anti-slip seat 31-11, multiple support rods 23-3 are locked to maintain the position of the sealing plate 23-2. When the top plate 13 moves downward under weight and squeezes the rubber film 14, it will be supported by multiple sealing plates 23-2 to prevent the rubber film 14 from being damaged due to excessive deformation. Example 3

[0076] Reference Figures 3 to 12, which is the third embodiment of the present invention, is based on the first two embodiments.

[0077] Specifically, the handwheel 41 is rotatably connected to an auxiliary frame 44 on the outside, and one side of the auxiliary frame 44 is fixed to the outer ring of the base 11. A first pointing groove 41-1 is provided on the handwheel 41, and a second pointing groove 44-1 is provided on one side of the auxiliary frame 44, and is coordinated with the first pointing groove 41-1. A rotation counter 45 is installed on the movable rod 42, and an anti-slip part 46 is installed on the outer ring of the movable rod 42, including an auxiliary seat 46-1 fixed to the bottom inner side of the base 11, and one side of the auxiliary seat 46-1 is rotatably connected to a rotary block 46-2, and a card slot 46-21 is provided on the outer ring of the rotary block 46-2, and a second spring 46-4 is fixed to the top of the auxiliary seat 46-1, and a displacement rod 46-3 is fixed to the other end of the second spring 46-4, and a clamping head 46-31 is fixed to one side of the displacement rod 46-3.

[0078] The inclination angle of the second pointing groove 44-1 is consistent with that of the card slot 46-21, that is, when the clamping head 46-31 is clamped into the corresponding card slot 46-21, the second pointing groove 44-1 at the corresponding position will be directly above and aligned with the first pointing groove 41-1. By calibrating the tips of the first pointing groove 41-1 and the second pointing groove 44-1, the operator can easily judge the rotation status of the handwheel 41.

[0079] The auxiliary seat 46-1 is rotatably connected to the movable rod 42 through a bearing to ensure the rotational stability of the movable rod 42. A guide rod is fixed at the top center of the auxiliary seat 46-1. The guide rod passes through the displacement rod 46-3 and is slidably connected to the displacement rod 46-3 to ensure the stability of the up and down movement of the displacement rod 46-3.

[0080] By cooperating with the clamping head 46-31 and the clamping slot 46-21, the clamping head 46-31 can be placed in the clamping slot 46-21 when the two are aligned, effectively increasing the friction force that the rotating rotary block 46-2 needs to overcome. Compared with the clamping head 46-31 sliding on the outer ring of the rotary block 46-2, it has a clear difference in hand feel and is more in line with actual needs.

[0081] In actual application, the number of circles and text description can be added to the second pointing groove 44-1, that is, when the handwheel 41 rotates the corresponding number of circles, with the cooperation of the rotation counter 45, and the first pointing groove 41-1 and the second pointing groove 44-1 are calibrated and aligned, it means that the corresponding pressing head 32-1 is in pressing contact with the support rod 23-3 at this time, and the opening and closing status of the buffer component 24 can also be judged.

[0082] The rotation counter 45 is used to display the number of rotations of the hand wheel 41. The rotation counter 45 can be a mechanical type or an electronic digital display type according to actual needs.

[0083] A buffer seat 16 is fixed to the inner circle of the base 11 , and the top of the buffer seat 16 contacts the bottom of the top plate 13 .

[0084] The buffer seat 16 can play an auxiliary buffering and protective role when the top plate 13 moves downward due to a heavy object in an airless state.

[0085] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A thin film air spring structure, characterized in that: include, A support assembly (1) comprises a base (11), a rubber film (14) being fixed to the top of the base (11); and A gas delivery assembly (2) is arranged on the partition plate (15), comprising a hollow shell (21) fixed in the base (11), a ring plate (22) fixed at the center of the hollow shell (21), an air hole (22-1) opened at the top of the ring plate (22), an opening and closing member (23) arranged on the outside of the hollow shell (21), and a buffer member (24) arranged on the top of the hollow shell (21); A pressing assembly (3) is arranged in the base (11), comprising a fixed cylinder (31) fixed in the base (11), an elastic block (31-1) being fixed at the bottom end of the fixed cylinder (31), a rotating frame (32) being arranged in the base (11), a pressing head (32-1) being fixed at the outer end of the rotating frame (32), a fixed seat (33) being rotatably connected to the bottom of the base (11), a driven bevel gear (33-1) being fixed to the outer ring of the fixed seat (33), and a screw sleeve (33-4) being arranged at the top of the fixed seat (33); The driving assembly (4) is arranged on one side of the base (11) and includes a hand wheel (41) located outside the base (11), a movable rod (42) being fixed to the output end of the hand wheel (41), and a driving bevel gear (43) being fixed to the other end of the movable rod (42).

2. The thin film air spring structure according to claim 1, wherein: A transmission member (12) is provided on the outside of the base (11), a top plate (13) is slidably connected to the top of the base (11), a partition plate (15) is provided on the bottom of the rubber film (14), an air injection valve (11-1) is fixed to the outer ring of the base (11), a horizontal adjustment bolt (11-2) is installed on one side of the base (11), the transmission member (12) includes a first air head (12-1) fixed to the bottom of the outer ring of the base (11), a second air head (12-2) is fixed to the top of the outer ring of the base (11), a regulating valve (12-3) is fixed between the first air head (12-1) and the first air head (12-1), a horizontal control air valve (13-1) is fixed to the top of the top plate (13), and a sealing hole (15-1) is opened on the top of the partition plate (15).

3. The thin film air spring structure according to claim 2, wherein: The opening and closing member (23) comprises a positioning frame (23-1) fixed to the inner ring of the hollow shell (21); a sealing plate (23-2) is rotatably connected to the positioning frame (23-1); a support rod (23-3) is provided on one side of the sealing plate (23-2) and is slidably connected to the sealing hole (15-1).

4. The thin film air spring structure according to claim 3, wherein: A torsion spring (23-11) is sleeved on the positioning frame (23-1), one end of the torsion spring (23-11) is fixed to the positioning frame (23-1), and the other end of the torsion spring (23-11) is fixed to the sealing plate (23-2). A guide groove (23-21) is provided on the surface of the sealing plate (23-2), and the top end of the support rod (23-3) is rotatably connected to the displacement frame (23-4) and is slidably connected to the guide groove (23-21).

5. The thin film air spring structure according to claim 4, characterized in that: The buffer member (24) comprises a sleeve (24-1) fixed to the top of the hollow shell (21); a sealing block (24-2) is slidably connected in the sleeve (24-1); a first spring (24-3) is fixed to the top and bottom of the sealing block (24-2); the other end of the first spring (24-3) is fixed in the sleeve (24-1); a sliding rod (24-4) is fixed to the top and bottom of the sealing block (24-2); the sliding rod (24-4) is located in the first spring (24-3); and the sleeve (24-1) is located at the top of the through hole (21-1).

6. The thin film air spring structure according to claim 5, wherein: An extension tube (32-2) is fixed at the center of the rotating frame (32), a gear ring (32-3) is provided at the center of the outer side of the rotating frame (32), a tooth plate (32-4) is provided outside the gear ring (32-3), the gear ring (32-3) is fixed to the outer ring of the extension tube (32-2), the gear ring (32-3) is meshed with the tooth plate (32-4), a slide plate (32-5) is fixed at the bottom of the tooth plate (32-4), a positioning head (32-6) is slidably connected to the slide plate (32-5), a protruding rod (32-7) is fixed at the bottom of the slide plate (32-5), a bracket (32-8) is rotatably connected at the center of the rotating frame (32), and a fixing bracket (32-9) is fixed at the bottom of the bracket (32-8).

7. The thin film air spring structure according to claim 6, wherein: A slide (33-2) is slidably connected inside the fixed seat (33); an auxiliary groove (33-21) is provided on the top of the slide (33-2) and is slidably connected to the protruding rod (32-7); a connecting frame (33-3) is fixed on the top of the slide (33-2); the other end of the connecting frame (33-3) is fixed to the outer ring of the screw sleeve (33-4).

8. The thin film air spring structure according to claim 7, wherein: An anti-slip seat (31-11) is fixed inside the elastic block (31-1), one end of the positioning head (32-6) is fixed on the bracket (32-8), there are a plurality of pressing heads (32-1), the widths of the pressing heads (32-1) are different, and the screw sleeve (33-4) is threadedly connected to the elastic block (31-1).

9. The thin film air spring structure according to claim 8, wherein: The hand wheel (41) is externally rotatably connected to an auxiliary frame (44), one side of the auxiliary frame (44) is fixed to the outer ring of the base (11), a first pointing groove (41-1) is provided on the hand wheel (41), a second pointing groove (44-1) is provided on one side of the auxiliary frame (44) and is oriented in coordination with the first pointing groove (41-1), a rotation counter (45) is installed on the movable rod (42), an anti-slip member (46) is installed on the outer ring of the movable rod (42), including an auxiliary seat (46-1) fixed to the inner bottom of the base (11), one side of the auxiliary seat (46-1) is rotatably connected to a rotary block (46-2), an outer ring of the rotary block (46-2) is provided with a clamping groove (46-21), a second spring (46-4) is fixed to the top of the auxiliary seat (46-1), a displacement rod (46-3) is fixed to the other end of the second spring (46-4), and a clamping head (46-31) is fixed to one side of the displacement rod (46-3).

10. The thin film air spring structure according to claim 9, wherein: A buffer seat (16) is fixed to the inner ring of the base (11), and the top of the buffer seat (16) contacts the bottom of the top plate (13).

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