Folding tool for folding air spring airbag

Abstract

According to the folding tool for folding the air spring air bag, the large-end opening and the small-end opening of the air spring air bag are sealed through the first sealing assembly and the second sealing piece respectively, and when the linear driving mechanism drives the piston of the second sealing piece to downwards press the piston sleeve of the second sealing piece, the large-end opening and the small-end opening of the air spring air bag are sealed. The air spring air bag is inflated through the air inlet hole and the inflation cavity in the first sealing assembly, and by means of the principle that the air spring air bag made of rubber expands due to the fact that the internal pressure intensity is increased, a piston is driven to downwards press a piston sleeve through a linear driving mechanism; by means of the piston sleeve, the conical cylinder type air spring air bag can be automatically folded along an opening in the small end of the piston sleeve, so that follow-up assembly of a shock absorber and other parts is facilitated, and the problem that it is difficult to achieve folding treatment of the air spring air bag through a manual mode is effectively solved; other parts such as a shock absorber and the like are inconvenient to assemble with the air spring airbag.

Description

Technical Field

[0001] The utility model belongs to the technical field of air spring processing and manufacturing, and in particular relates to a folding tool used for folding an air spring airbag. Background Art

[0002] In order to improve the driving stability, smoothness, safety and comfort of passenger cars, passenger cars are generally equipped with air suspension damping systems. The air spring assembly of the air suspension system generally adopts a cone-shaped air spring airbag. Since one end of the cone-shaped airbag is large and the other end is small, the small end opening of the cone-shaped air spring airbag hinders the assembly of other parts such as shock absorbers. Therefore, in the actual assembly process, the small end opening of the cone-shaped air spring airbag needs to be folded to facilitate the subsequent assembly of other parts such as shock absorbers. At present, it is difficult to fold the small end opening of the cone-shaped air spring airbag directly by hand, which makes it difficult to assemble other parts such as shock absorbers with the cone-shaped air spring airbag. Utility Model Content

[0003] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiment of the utility model is to provide a folding tool for folding an air spring airbag, so as to solve the technical problems existing in the prior art that it is difficult to fold the air spring airbag manually, and it is not convenient to assemble other components such as shock absorbers with the air spring airbag.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a folding tool for folding an air spring airbag, comprising:

[0005] Base;

[0006] A gantry is arranged on the base;

[0007] A first closing component, used for closing the large end opening of the air spring airbag, wherein the large end opening of the air spring airbag can be fitted and positioned on the first closing component;

[0008] A second closing assembly, for closing the small end opening of the air spring airbag, the second closing assembly comprising a piston sleeve for matching connection with the small end opening of the air spring airbag and a piston for inserting into the piston sleeve; and

[0009] A linear drive mechanism, used for driving the piston to move into the piston sleeve and pressing down the piston sleeve, wherein the linear drive mechanism is arranged on the gantry, and the piston is connected to the linear drive mechanism;

[0010] The first closed component is provided with an air inlet hole for communicating with the inflation device, and an inflation cavity is provided inside the first closed component, and the air inlet hole is communicated with the inflation cavity.

[0011] Furthermore, the first sealing component is provided with an air outlet hole connected to the inflation cavity, and the flow area of ​​the air outlet hole is smaller than the flow area of ​​the air inlet hole.

[0012] Furthermore, the diameter of the air inlet is 8 to 12 mm, and the diameter of the air outlet is 3 to 5 mm.

[0013] Furthermore, the folding tool for folding the air spring airbag also includes a pressure-maintaining valve arranged in the air inlet hole.

[0014] Furthermore, the folding tool for folding the air spring airbag also includes a flow regulating valve for adjusting the intake air flow rate, and the flow regulating valve is arranged in the air inlet hole or on the air supply pipe of the inflation device.

[0015] Furthermore, the first closing component includes a positioning seat arranged on the base and a connecting seat arranged on the positioning seat, the connecting seat is provided with a first necking for matching and connecting to the large end opening of the air spring airbag, the interior of the connecting seat is provided with the inflation chamber connected to the first necking, and the positioning seat is provided with the air inlet hole and the air inlet channel connected to the inflation chamber.

[0016] Furthermore, the folding tool for folding the air spring airbag also includes a pressing ring for pressing the air spring airbag on the first neck and a supporting ring for expanding the air spring airbag outward from the inside of the air spring airbag.

[0017] Furthermore, the folding tool for folding the air spring airbag also includes a bundle-shaped protective sleeve sleeved on the air spring airbag.

[0018] Furthermore, the first end of the piston sleeve is provided with a second neck for being inserted into the small end opening of the air spring airbag, the second end of the piston sleeve is provided with a third neck for inserting the piston, and the end of the third neck facing away from the piston sleeve is provided with a conical expansion port matching the conical pressure head of the piston.

[0019] Furthermore, the folding tool for folding the air spring airbag also includes an inflation device and an air pipe connecting the inflation device with the air inlet.

[0020] Compared with the prior art, the above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0021] The folding tool for folding the air spring airbag in the embodiment of the utility model seals the large end opening and the small end opening of the air spring airbag respectively through the first closing component and the second sealing component, and while the linear drive mechanism drives the piston of the second sealing component to press down the piston sleeve of the second sealing component, the air spring airbag is inflated through the air inlet hole and the inflation chamber on the first closing component. Utilizing the principle that the rubber air spring airbag expands due to the increase in internal pressure, it is only necessary to drive the piston to press down the piston sleeve through the linear drive mechanism, so that the piston sleeve can automatically fold the conical air spring airbag along its small end opening to facilitate the subsequent assembly of other components such as shock absorbers, effectively solving the problem that it is difficult to fold the air spring airbag manually, and it is not convenient to assemble other components such as shock absorbers with the air spring airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a folding tool for folding an air spring airbag provided in an embodiment of the utility model;

[0024] Figure 2 A schematic cross-sectional view of a folding tool for folding an air spring airbag provided in an embodiment of the utility model;

[0025] Figure 3 An exploded view of a first closure assembly provided by an embodiment of the utility model;

[0026] Figure 4 An exploded view of a second closure assembly provided by an embodiment of the utility model;

[0027] Figure 5 A schematic diagram of the three-dimensional structure of a piston sleeve provided in an embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the air spring airbag mentioned in the embodiment of the utility model;

[0029] Figure 7 Another three-dimensional structural schematic diagram of the air spring airbag mentioned in the embodiment of the utility model;

[0030] Figure 8 The present invention is an exploded view of a folding tool for folding an air spring airbag provided by an embodiment of the utility model.

[0031] Among them, the reference numerals in the figure are:

[0032] 1- base; 2- gantry;

[0033] 3-first closing component; 31-positioning seat; 32-connecting seat; 321-first necking; 33-inflatable cavity; 34-inlet hole; 35-outlet hole;

[0034] 4-second closing assembly; 41-piston sleeve; 411-second necking; 412-third necking; 42-piston;

[0035] 5-Linear drive mechanism; 6-Anti-slip structure;

[0036] 7- buckling ring; 8- beam-shaped casing;

[0037] 9-air spring airbag; 91-large end opening; 92-small end opening;

[0038] 10-support ring; 20-gas pipe. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be noted that when an element is referred to as being "connected to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly specified and specifically defined. In the description of the utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0042] Please also read Figures 1 to 8 The folding tool for folding the air spring airbag provided in the embodiment of the utility model is now described. The folding tool for folding the air spring airbag provided in the embodiment of the utility model can automatically and quickly fold the small end opening 92 of the conical air spring airbag 9 to facilitate the subsequent assembly of other components such as the shock absorber, thereby solving the problem in the prior art that it is difficult to fold the air spring airbag 9 manually, which is inconvenient for assembling other components such as the shock absorber with the air spring airbag 9.

[0043] Please refer to further Figure 1 , Figure 2 and Figure 3The folding tool for folding the air spring airbag provided in the embodiment of the utility model comprises a base 1, a gantry 2, a first closing component 3, a second closing component 4 and a linear drive mechanism 5. The gantry 2 and the first closing component 3 are correspondingly arranged on the base 1. The first closing component 3 is used to close the large end opening 91 of the air spring airbag 9. The large end opening 91 of the air spring airbag 9 can be fitted and positioned on the first closing component 3. The second closing component 4 is used to close the small end opening 92 of the air spring airbag 9. The second closing component 4 includes a piston sleeve 41 for matching and connecting to the small end opening 92 of the air spring airbag 9 and a piston 42 for inserting into the piston sleeve 41. The linear drive mechanism 5 is used to drive the piston 42 to move into the piston sleeve 41 and press the piston sleeve 41 downward. The linear drive mechanism 5 is arranged on the gantry 2. The piston 42 is connected to the linear drive mechanism 5. The linear drive mechanism 5 can be but not limited to a cylinder. The first closing component 3 is provided with an air inlet 34 for communicating with the inflation device, and an inflation chamber 33 is provided inside the first closing component 3, and the air inlet 34 is in communication with the inflation chamber 33. When in use, the large end opening 91 of the air spring airbag 9 is mounted and positioned on the first closing component 3, and the large end opening 91 of the air spring airbag 9 is sealed by the first closing component 3, and then the piston sleeve 41 of the second closing component 4 is matched and connected to the small end opening 92 of the air spring airbag 9, and then the piston 42 is driven by the linear drive mechanism 5 to move into the piston sleeve 41, so as to seal the small end opening 92 of the air spring airbag 9. While the linear drive mechanism 5 continues to drive the piston 42 to press down the piston sleeve 41, the inflation chamber 33 inside the first closed component 3 is inflated through the inflation device, and the rubber air spring airbag 9 begins to expand due to the increase in internal pressure. As the linear drive mechanism 5 continues to drive the piston 42 to press down the piston sleeve 41, the conical air spring airbag 9 can be folded at its small end opening 92 to facilitate the subsequent assembly of other components such as shock absorbers.

[0044] The folding tool for folding the air spring airbag provided by the embodiment of the utility model, compared with the prior art, uses the first closing component 3 and the second sealing component to seal the large end opening 91 and the small end opening 92 of the air spring airbag 9 respectively, and while the linear drive mechanism 5 drives the piston 42 of the second sealing component to press down the piston sleeve 41 of the second sealing component, the air is inflated into the air spring airbag 9 through the air inlet hole 34 and the inflation chamber 33 on the first closing component 3. The air spring airbag 9 made of rubber expands due to the increase in internal pressure. It only needs to drive the piston 42 to press down the piston sleeve 41 through the linear drive mechanism 5, so that the piston sleeve 41 can automatically fold the conical air spring airbag 9 along its small end opening 92, so as to facilitate the subsequent assembly of other components such as the shock absorber, and effectively solves the problem that it is difficult to fold the air spring airbag 9 manually, and it is not convenient to assemble the air spring airbag 9 with other components such as the shock absorber.

[0045] Please refer to Figure 1 and Figure 3 In some embodiments, the first closed component 3 is provided with an outlet hole 35 connected to the inflation cavity 33, and the flow area of ​​the outlet hole 35 is smaller than the flow area of ​​the inlet hole 34. In this way, when the inflation device inflates the inflation cavity 33 on the first closed component 3 through the inlet hole, since the flow area of ​​the outlet hole 35 is smaller than the flow area of ​​the inlet hole 34, the flow rate of the gas entering through the inlet hole 34 is always greater than the flow rate of the gas discharged through the outlet hole 35, while ensuring that the pressure in the inflation cavity 33 gradually increases, while preventing the pressure in the inflation cavity 33 from being too high, effectively avoiding the air spring airbag 9 from infinite expansion and damage. Specifically, for example, in some specific embodiments, the inlet hole 34 and the outlet hole 35 are both circular holes, the diameter of the inlet hole 34 is 8 to 12 mm, and the diameter of the outlet hole 35 is 3 to 5 mm.

[0046] In some of the embodiments, the folding tool for folding the air spring airbag also includes a pressure-maintaining valve arranged in the air inlet hole 34, through which the pressure in the inflation chamber 33 is maintained within a certain range to prevent the air spring airbag 9 from being damaged by excessive pressure in the inflation chamber 33.

[0047] In some embodiments, the folding tool for folding the air spring airbag also includes a flow regulating valve for adjusting the intake air flow, and the flow regulating valve is arranged in the air inlet 34 or on the air delivery pipe 20 of the inflation device. The flow regulating valve is used to adjust the flow entering the inflation chamber 33 through the air inlet 34, so that the ratio of the intake air flow through the air inlet 34 and the outlet air flow through the air outlet 35 can be adjusted, which is conducive to reasonably controlling the expansion process of the air spring airbag 9, so as to facilitate the automatic folding of the conical air spring airbag 9 along the small end opening 92 thereof.

[0048] Please refer to Figure 2 , Figure 3 and Figure 8 In some embodiments, the first closing component 3 includes a positioning seat 31 disposed on the base 1 and a connecting seat 32 disposed on the positioning seat 31, the connecting seat 32 is provided with a first neck 321 for matching and connecting with the large end opening 91 of the air spring airbag 9, the connecting seat 32 is provided with an air charging cavity 33 connected with the first neck 321, and the positioning seat 31 is provided with an air inlet hole 34 and an air inlet channel connected with the air charging cavity 33. The air spring airbag 9 can be positioned on the connecting seat 32 by simply sleeve-fitting the large end opening 91 of the air spring airbag 9 on the first neck 321 on the connecting seat 32, and the air spring airbag 9 is connected with the air charging cavity 33 on the positioning seat 31, thereby facilitating the matching connection between the air spring airbag 9 and the first closing component 3, and facilitating the folding efficiency of the air spring airbag 9. It should be noted that in order to enhance the air tightness of the connection between the large end opening 91 of the air spring airbag 9 and the first neck 321 and prevent the large end opening 91 of the air spring airbag 9 and the first neck 321 from slipping, an anti-slip structure 6 such as a thread is provided on the outer peripheral surface of the first neck 321.

[0049] Please refer to Figure 2 , Figure 3 and Figure 6 In some embodiments, the folding tool for folding the air spring airbag further includes a pressing ring 7 for pressing the air spring airbag 9 on the first neck 321 and a supporting ring 30 for expanding the air spring airbag 9 inside the air spring airbag 9. The large end opening 91 of the air spring airbag 9 is pressed on the first neck 321 by the pressing ring 7, which can enhance the air tightness of the connection between the large end opening 91 of the air spring airbag 9 and the first neck 321 on the one hand, and increase the friction between the large end opening 91 of the air spring airbag 9 and the first neck 321 on the other hand, so as to prevent the air spring airbag 9 from slipping off the first neck 321 during the inflation process.

[0050] Please refer to Figure 1 , Figure 2 and Figure 8 In some embodiments, the folding tool for folding the air spring airbag further includes a bundle-shaped protective sleeve 8 sleeved on the air spring airbag 9, which limits the expansion diameter of the air spring airbag 9, so that the expansion diameter of the air spring airbag 9 is controlled within a range that is convenient for folding, and can effectively prevent the air spring airbag 9 from being damaged or causing an explosion due to excessive expansion. It should be noted that the bundle-shaped protective sleeve 8 can be a sleeve made of aluminum, steel, or aluminum alloy with a certain rigidity.

[0051] Please refer to Figure 4 , Figure 5 and Figure 7 In some embodiments, the first end of the piston sleeve 41 is provided with a second necking 411 for inserting into the small end opening 92 of the air spring airbag 9, so as to facilitate the connection between the small end opening 92 of the air spring airbag 9 and the piston sleeve 41. In addition, the outer peripheral surface of the second necking 411 is provided with an anti-slip structure 6 such as a thread, which can enhance the air tightness of the connection between the large end small opening of the air spring airbag 9 and the second necking 411 on the one hand, and prevent the small end opening 92 of the air spring airbag 9 from slipping off the second necking 411 on the other hand. The second end of the piston sleeve 41 is provided with a third necking 412 for inserting the piston 42, and the end of the third necking 412 away from the piston sleeve 41 is provided with a conical expansion matching the conical pressure head of the piston 42, so as to facilitate the insertion of the piston 42 into the piston sleeve 41 and enhance the sealing between the piston 42 and the piston sleeve 41.

[0052] Please refer to Figure 1 and Figure 8 In some embodiments, the folding tool for folding the air spring airbag also includes an inflating device and an air pipe 20 connecting the inflating device with the air inlet 34. The inflating device is used to inflate the inflating cavity 33 of the first closure member 3. The air spring airbag 9 made of rubber material expands due to the increase in internal pressure. The piston sleeve 41 is driven by the linear drive mechanism 5 to press down the piston sleeve 41, so that the piston sleeve 41 can automatically fold the conical air spring airbag 9 along its small end opening 92 to facilitate the subsequent assembly of other components such as shock absorbers, which effectively solves the problem that it is difficult to fold the air spring airbag 9 manually and it is not convenient to assemble other components such as shock absorbers with the air spring airbag 9. It should be noted that the inflating device can be, but is not limited to, an inflating bottle or an inflating pump.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding tool for folding an air spring airbag, characterized in that: include: Base; A gantry is arranged on the base; A first closing component, used for closing the large end opening of the air spring airbag, wherein the large end opening of the air spring airbag can be fitted and positioned on the first closing component; A second closing assembly, for closing the small end opening of the air spring airbag, the second closing assembly comprising a piston sleeve for matching connection with the small end opening of the air spring airbag and a piston for inserting into the piston sleeve; and A linear drive mechanism, used for driving the piston to move into the piston sleeve and pressing down the piston sleeve, wherein the linear drive mechanism is arranged on the gantry, and the piston is connected to the linear drive mechanism; The first closed component is provided with an air inlet hole for communicating with the inflation device, and an inflation cavity is provided inside the first closed component, and the air inlet hole is communicated with the inflation cavity.

2. The folding tool for folding an air spring airbag according to claim 1, characterized in that: The first sealing component is provided with an air outlet hole connected with the inflation cavity, and the flow area of ​​the air outlet hole is smaller than the flow area of ​​the air inlet hole.

3. The folding tool for folding an air spring airbag according to claim 2, characterized in that: The diameter of the air inlet is 8 to 12 mm, and the diameter of the air outlet is 3 to 5 mm.

4. The folding tool for folding an air spring airbag according to claim 2, characterized in that: The folding tool for folding the air spring airbag also includes a pressure-maintaining valve arranged in the air inlet hole.

5. The folding tool for folding an air spring airbag according to claim 2, characterized in that: The folding tool for folding the air spring airbag also includes a flow regulating valve for regulating the intake air flow rate, and the flow regulating valve is arranged in the air inlet hole or on the air supply pipe of the inflation device.

6. The folding tool for folding an air spring airbag according to claim 1, characterized in that: The first closing component includes a positioning seat arranged on the base and a connecting seat arranged on the positioning seat, the connecting seat is provided with a first necking for matching and connecting to the large end opening of the air spring airbag, the interior of the connecting seat is provided with the inflation chamber connected to the first necking, and the positioning seat is provided with the air inlet hole and the air inlet channel connected to the inflation chamber.

7. The folding tool for folding an air spring airbag according to claim 6, characterized in that: The folding tool for folding the air spring airbag also includes a pressing ring for pressing the air spring airbag on the first neck and a supporting ring for expanding the air spring airbag outward from the inside of the air spring airbag.

8. The folding tool for folding an air spring airbag according to claim 1, characterized in that: The folding tool for folding the air spring airbag also includes a bundle-shaped protective sleeve sleeved on the air spring airbag.

9. The folding tool for folding an air spring airbag according to claim 1, characterized in that: The first end of the piston sleeve is provided with a second neck for inserting into the small end opening of the air spring airbag, the second end of the piston sleeve is provided with a third neck for inserting the piston, and the end of the third neck facing away from the piston sleeve is provided with a conical expansion port matching the conical pressure head of the piston.

10. The folding tool for folding an air spring airbag according to any one of claims 1 to 9, characterized in that: The folding tool for folding the air spring airbag also includes an inflating device and an air delivery pipe connecting the inflating device with the air inlet.

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