Air bag type suction device

Abstract

The utility model provides an air bag type suction device. The air bag type suction device comprises a telescopic air bag, a sleeve, a pressing handle and a pressing disc. The telescopic air bag stretches in the first direction so as to suck air. Or, the telescopic air bag is compressed in the first direction so as to exhaust the air; the telescopic air bag is arranged in the sleeve; the pressing handle is connected with the telescopic air bag, the pressing handle partially protrudes out of the sleeve, and the pressing handle is used for extruding the telescopic air bag or relieving extrusion on the telescopic air bag; the pressing disc is located between the telescopic air bag and the pressing handle so that extrusion force applied by the pressing handle can be dispersed and act on the telescopic air bag. Wherein the first direction is the extension direction of the sleeve. According to the technical scheme, the mode that the pressing disc is arranged between the telescopic air bag and the pressing handle is adopted, and extrusion force applied by the pressing handle is dispersed by the pressing disc and acts on the telescopic air bag, so that the face, facing the pressing handle, of the telescopic air bag is subjected to equal extrusion force.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to an airbag type suction device. Background Art

[0002] In the process of producing solar photovoltaic cells, in order to reduce the reflection of light on the surface of silicon wafers, a layer of silicon nitride anti-reflection film needs to be deposited on the surface of crystalline silicon to increase the absorption of light by crystalline silicon solar cells, thereby improving the photoelectric conversion efficiency of solar cells. At the same time, the silicon nitride film deposited on the surface of silicon wafers also plays a role in surface passivation and protection of crystalline silicon solar cells.

[0003] During the coating process of crystalline silicon solar cells, the silicon wafers are placed in a graphite boat or a quartz boat for coating. This process requires the use of a suction pen to place the silicon wafers in the graphite boat or the quartz boat, and after coating, the silicon wafers are removed from the graphite boat or the quartz boat using the suction pen. Currently, the suction pen achieves the purpose of adsorption and desorption by using a vacuum pump, nitrogen and connecting wires. However, this method is expensive to use, and is limited by length and power supply when used, making it difficult to achieve portability. Utility Model Content

[0004] The present application provides an airbag suction device, which makes the suction and transfer of silicon wafers more convenient.

[0005] The present application provides an airbag suction device, which includes:

[0006] A retractable airbag, wherein the retractable airbag is extended along a first direction to inhale gas; or the retractable airbag is compressed along the first direction to discharge gas;

[0007] A sleeve, wherein the retractable airbag is arranged inside the sleeve;

[0008] A pressing handle, the pressing handle is connected to the retractable airbag, the pressing handle partially protrudes from the sleeve, and the pressing handle is used to squeeze the retractable airbag or release the squeezing of the retractable airbag;

[0009] A pressure plate, the pressure plate being located between the retractable airbag and the pressing handle to disperse the squeezing force applied by the pressing handle and act on the retractable airbag;

[0010] Wherein, the first direction is the extending direction of the sleeve.

[0011] In the above technical solution, by setting a pressure plate between the retractable airbag and the pressing handle, the squeezing force applied by the pressing handle is dispersed by the pressure plate and acts on the retractable airbag, so that the side of the retractable airbag facing the pressing handle is subjected to equal squeezing force.

[0012] In a specific embodiment, the retractable airbag comprises:

[0013] A pressure-bearing surface, the pressure-bearing surface being in contact with the pressure plate;

[0014] A folding surface, the folding surface is unfolded or folded along the first direction, and the folding surface is provided in multiple groups, and the multiple groups of folding surfaces are sequentially arranged along the first direction;

[0015] The airbag suction device also includes a gas channel and a suction cup connected to the gas channel;

[0016] Wherein, the folding surface arranged along the first direction close to the end of the pressing handle is connected to the outer peripheral surface of the pressure-bearing surface;

[0017] The folding surface disposed along the first direction away from the end of the pressing handle is connected to the gas channel.

[0018] In a specific possible implementation manner, the folding surface includes a first surface, a second surface, and a connecting portion connecting the first surface and the second surface together;

[0019] Wherein, a side of the first surface away from the connecting portion and a side of the second surface away from the connecting portion can move toward each other along the first direction, so that the retractable airbag discharges gas;

[0020] The side of the first surface away from the connecting portion and the side of the second surface away from the connecting portion can move away from each other along the first direction, so that the retractable airbag can absorb gas.

[0021] In a specific possible implementation manner, the outer peripheral surface of the pressure plate and the inner wall surface of the sleeve slide relatively along the first direction.

[0022] In a specific possible implementation manner, a first slideway extending along the first direction is provided on the inner wall of the sleeve;

[0023] A first protrusion is provided on the outer peripheral surface of the pressure plate;

[0024] Wherein, the first protrusion slides in the first slideway.

[0025] In the above technical solution, by arranging the first protrusion to slide in the first slideway, the rotation amplitude of the pressure plate and the retractable airbag connected to the pressure plate is reduced during the movement of the pressure plate along the first direction.

[0026] In a specific possible implementation mode, a plurality of grooves are arranged on the inner wall of the sleeve at intervals along the first direction;

[0027] A plunger portion is provided on the outer peripheral surface of the pressure plate;

[0028] The plunger portion can slide into or out of any one of the grooves along the first direction.

[0029] In the above technical solution, by arranging a plurality of grooves at intervals along the first direction, the plunger can slide into or out of any one of the grooves along the first direction, thereby achieving different levels of adsorption force for silicon wafers of different specifications and sizes.

[0030] In a specific possible implementation mode, a second slideway extending along the first direction is provided on the inner wall of the sleeve; the second slideway passes through a plurality of the grooves;

[0031] Wherein, the plunger part slides in the second slideway.

[0032] In the above technical solution, by providing a second slideway passing through a plurality of grooves, the situation in which the plunger part deviates during the sliding process and fails to slide into the interior of the groove is improved.

[0033] In a specific possible implementation scheme, a card slot is provided on the inner wall of the sleeve;

[0034] A second protrusion is provided on the outer peripheral surface of the pressure plate;

[0035] The second protrusion slides along the extending direction of the slot and can be engaged with the slot.

[0036] In the above technical solution, by providing the second protrusion to engage with the slot, the pressure plate can be fixed after being pressed down.

[0037] In a specific implementation scheme, the card slot includes:

[0038] A clamping portion, wherein the second protrusion can slide into or out of the clamping portion;

[0039] a first slide rail, wherein the second protrusion can slide into the clamping portion from the first slide rail, so that the second protrusion is clamped with the clamping portion;

[0040] The second slide rail, the second protrusion can slide out from the clamping portion and slide into the second slide rail, so that the second protrusion and the clamping portion are released from the clamping portion.

[0041] In a specific possible implementation manner, an extension direction of the first slide rail is parallel to an extension direction of the second slide rail.

[0042] In the above technical solution, by setting the extension direction of the first slide rail to be parallel to the extension direction of the second slide rail, the vertical distance between the first slide rail and the second slide rail will not change along the first direction, and thus in the process of the pressure plate driving the retractable airbag to extend or compress, the pressure plate and the retractable airbag will not rotate significantly. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the structure of the airbag suction device provided in an embodiment of the present application;

[0044] Figure 2 A schematic diagram of the structure of a retractable airbag in an airbag-type suction device provided in an embodiment of the present application;

[0045] Figure 3 A schematic diagram of the structure of the folding surface in the airbag type suction device provided in an embodiment of the present application;

[0046] Figure 4 A schematic diagram of the structure of the first slideway in the airbag suction device provided in an embodiment of the present application;

[0047] Figure 5 A front view of a pressure plate in an airbag-type suction device provided in an embodiment of the present application;

[0048] Figure 6 A schematic diagram of the structure of the groove in the airbag type suction device provided in an embodiment of the present application;

[0049] Figure 7 This is a schematic diagram of the structure of the card slot in the airbag suction device provided in an embodiment of the present application.

[0050] In the figure: 1. retractable airbag; 11. pressure surface; 12. folding surface; 121. first surface; 122. second surface; 123. connecting part; 2. sleeve; 21. first slideway; 22. second slideway; 23. groove; 24. slot; 241. first slide rail; 242. second slide rail; 243. clamping part; 3. pressing handle; 4. pressure plate; 41. first protrusion; 42. second protrusion; 43. plunger part; 5. gas channel; 6. suction cup; 61. air hole. DETAILED DESCRIPTION

[0051] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0052] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0053] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0054] To facilitate understanding of the airbag suction device provided in the embodiment of the present application, its application scenario is first described. The airbag suction device is used in the process of placing silicon wafers into a graphite boat or a quartz boat, and in the process of removing silicon wafers from a graphite boat or a quartz boat. The airbag suction device is used as a device for sucking and transferring silicon wafers. The vacuum suction pen in the prior art requires an external connection to a device that can change the internal air pressure of the vacuum suction pen, such as an air pump. The vacuum suction pen also requires a large amount of nitrogen, which lacks safety and economy. To this end, the embodiment of the present application provides an airbag suction device, which changes the air pressure inside the device by telescoping part of the structure of the device, making the device more convenient to use. It is described in detail below in conjunction with specific drawings and embodiments.

[0055] For reference Figure 1 and Figure 2 , Figure 1 The structure diagram of the airbag suction device provided in the embodiment of the present application is shown. Figure 2 A schematic structural diagram of a retractable airbag in an airbag-type suction device provided in an embodiment of the present application is shown.

[0056] The embodiment of the present application illustrates an airbag suction device. The airbag suction device includes a retractable airbag 1. The function of the retractable airbag 1 is to change the air pressure inside the retractable airbag 1 and the air pressure inside other components connected to the retractable airbag 1 by stretching or compressing, so that the retractable airbag 1 and other components connected to the retractable airbag 1 can achieve air suction or exhaust.

[0057] Specifically, the retractable airbag 1 is extended along the first direction, the air pressure inside the retractable airbag 1 and the air pressure inside other components connected to the retractable airbag 1 is lower than the external air pressure, and the retractable airbag 1 inhales gas; or, the retractable airbag 1 is compressed along the first direction, the air pressure inside the retractable airbag 1 and the air pressure inside other components connected to the retractable airbag 1 is higher than the external air pressure, and the retractable airbag 1 discharges gas. Figure 1 , the first direction is shown as the extension direction of the sleeve 2 .

[0058] By stretching or compressing the retractable airbag 1, the air pressure inside the retractable airbag 1 and the air pressure inside other components connected to the retractable airbag 1 can be changed, so that the airbag suction device does not need an external device that can change the internal air pressure of the device, such as an air pump.

[0059] The airbag suction device in the embodiment of the present application also includes a sleeve 2. The retractable airbag 1 is arranged inside the sleeve 2. Specifically, the extension direction of the sleeve 2 is parallel to the extension and compression direction of the retractable airbag 1, so that the retractable airbag 1 can only be compressed and deformed along the first direction. Since the circumferential side of the retractable airbag 1 is wrapped by the sleeve 2, even if the user applies force to the circumferential side of the sleeve 2, for example: when the user holds the sleeve 2, the circumferential side of the retractable airbag 1 will not be compressed, and thus the air pressure inside the retractable airbag 1 will not be changed. During the movement process after the airbag suction device absorbs the silicon wafer, the circumferential side of the retractable airbag 1 is squeezed when the user holds the sleeve 2, so that the gas inside the retractable airbag 1 is discharged and the silicon wafer falls.

[0060] The airbag suction device in the embodiment of the present application further includes a pressing handle 3. The pressing handle 3 is used to squeeze the retractable airbag 1 or release the squeezing of the retractable airbag 1.

[0061] Specifically, the pressing handle 3 is connected to the retractable airbag 1, and the pressing handle 3 partially protrudes from the sleeve 2. Specifically, the pressing handle 3 partially protrudes from the sleeve 2 in the embodiment of the present application means that the part of the structure of the pressing handle 3 close to the retractable airbag 1 along the first direction is placed inside the sleeve 2, and the part of the structure of the pressing handle 3 away from the retractable airbag 1 along the first direction is placed outside the sleeve 2. The user can indirectly apply force to the retractable airbag 1 by pressing the part of the structure of the pressing handle 3 placed outside the sleeve 2, so as to change the air pressure inside the retractable airbag 1.

[0062] In the embodiment of the present application, the airbag suction device further includes a pressure plate 4. Specifically, the pressure plate 4 is located between the retractable airbag 1 and the pressing handle 3 to disperse the squeezing force applied by the pressing handle 3 and act on the retractable airbag 1, so that the side of the retractable airbag 1 facing the pressing handle 3 is subjected to an equal squeezing force. On the contrary, if there is no pressure plate 4 to disperse the squeezing force applied by the pressing handle 3 and act on the retractable airbag 1, then the side of the retractable airbag 1 facing the pressing handle 3 will be partially subjected to squeezing force, and as the airbag suction device is used, the position where the side of the retractable airbag 1 facing the pressing handle 3 is partially subjected to squeezing force is prone to damage.

[0063] In the embodiment of the present application, the retractable airbag 1 comprises a pressure-bearing surface 11 , wherein the pressure-bearing surface 11 is used to bear the force applied by the pressing handle 3 .

[0064] Specifically, the pressure-bearing surface 11 is in contact with the pressure plate 4 , and the pressure-bearing surface 11 and the pressure plate 4 have the same area.

[0065] In the embodiment of the present application, the retractable airbag 1 further comprises a folding surface 12. The function of the folding surface 12 is to achieve the extension or compression of the retractable airbag 1 by unfolding or folding.

[0066] Specifically, the folding surface 12 is unfolded or folded along the first direction, and multiple groups of folding surfaces 12 are provided. Among them, multiple groups of folding surfaces 12 in the embodiment of the present application specifically refer to two groups or more than two groups of folding surfaces 12, such as: two groups of folding surfaces 12, three groups of folding surfaces 12, four groups of folding surfaces 12, five groups of folding surfaces 12, six groups of folding surfaces 12, seven groups of folding surfaces 12, eight groups of folding surfaces 12, etc. In the embodiment of the present application, eight groups of folding surfaces 12 are provided as an example for explanation. Specifically, multiple groups of folding surfaces 12 are arranged in sequence along the first direction to form a retractable airbag 1 that can be stretched or compressed along the first direction.

[0067] The airbag suction device further includes a gas channel 5 and a suction cup 6 connected to the gas channel 5 .

[0068] The folding surface 12 disposed along the first direction and close to the end of the pressing handle 3 is connected to the outer peripheral surface of the pressure receiving surface 11 .

[0069] The folding surface 12 disposed along the first direction away from the end of the pressing handle 3 is connected to the gas channel 5 .

[0070] During the operation of the airbag suction device, the handle 3 is pressed to apply a force along the first direction toward the pressure plate 4 to the pressure plate 4, and then the pressure plate 4 disperses the force and acts on the pressure surface 11. After the pressure surface 11 is subjected to the force along the first direction, it squeezes the multiple groups of folding surfaces 12, and then the multiple groups of folding surfaces 12 are folded, so that the retractable airbag 1 is compressed, the internal space of the retractable airbag 1 is reduced, and then part of the gas is discharged from the gas channel 5.

[0071] refer to Figure 3 , Figure 3 A schematic structural diagram of the folding surface in the airbag suction device provided in an embodiment of the present application is shown.

[0072] In the embodiment of the present application, the folding surface 12 includes a first surface 121 , a second surface 122 , and a connecting portion 123 connecting the first surface 121 and the second surface 122 .

[0073] Among them, the side of the first surface 121 away from the connecting portion 123 and the side of the second surface 122 away from the connecting portion 123 can move toward each other along the first direction to fold the folding surface 12, thereby compressing the retractable airbag 1, reducing the internal space of the retractable airbag 1, and discharging part of the gas inside the retractable airbag 1.

[0074] The side of the first surface 121 away from the connection portion 123 and the side of the second surface 122 away from the connection portion 123 can move away from each other along the first direction to unfold the folding surface 12, thereby stretching the retractable airbag 1, increasing the internal space of the retractable airbag 1, and reducing the air pressure inside the retractable airbag 1, thereby generating an adsorption force.

[0075] In the embodiment of the present application, the outer circumferential surface of the pressure plate 4 and the inner wall surface of the sleeve 2 slide relative to each other along the first direction. Specifically, there is a gap between the outer circumferential surface of the pressure plate 4 and the inner wall surface of the sleeve 2. The range of the gap is less than or equal to 0.5 mm. If the range of the gap is greater than 0.5 mm, during the operation of the airbag suction device, when the pressing handle 3 applies a force along the first direction toward the pressure plate 4 to the pressure plate 4, the pressure plate 4 will shake inside the sleeve 2, resulting in movement that deviates from the first direction, and long-term operation will cause damage to the retractable airbag 1.

[0076] For reference Figure 4 and Figure 5 , Figure 4 The structure diagram of the first slideway in the airbag suction device provided in the embodiment of the present application is shown. Figure 5 A front view of a pressure plate in an airbag-type suction device provided in an embodiment of the present application is shown.

[0077] In the embodiment of the present application, a first slideway 21 extending along a first direction is provided on the inner wall of the sleeve 2 , and a first protrusion 41 is provided on the outer peripheral surface of the pressure plate 4 .

[0078] The first protrusion 41 slides in the first slideway 21, so that when the user presses the pressing handle 3, the pressure plate 4 can slide along the first direction, reducing the rotation amplitude of the pressure plate 4 and the retractable airbag 1 connected to the pressure plate 4. On the contrary, if the pressure plate 4 and the retractable airbag 1 connected to the pressure plate 4 rotate at a large amplitude during the operation of the airbag suction device, the retractable airbag 1 may be damaged.

[0079] refer to Figure 6 , Figure 6 A schematic diagram of the structure of the groove in the airbag suction device provided in an embodiment of the present application is shown.

[0080] In the embodiment of the present application, a plurality of grooves 23 are arranged on the inner wall of the sleeve 2 at intervals along the first direction. In the embodiment of the present application, the plurality of grooves 23 specifically refers to two or more grooves 23. For example: two grooves 23, three grooves 23, four grooves 23, five grooves 23, etc. In the embodiment of the present application, the number of grooves 23 is three as an example for description.

[0081] A plunger portion 43 is provided on the outer peripheral surface of the pressure plate 4. The function of the plunger portion 43 is to be clamped in the groove 23. The specific structure of the plunger portion 43 is not limited in the embodiment of the present application, and any structure that can be clamped in the groove 23 is sufficient, such as a spring plunger, a rubber protrusion, etc. In the embodiment of the present application, the specific structure of the plunger portion 43 is a spring plunger as an example for explanation.

[0082] Among them, the plunger part 43 can slide into or out of any one of the grooves 23 along the first direction. Since the multiple grooves 23 are arranged at intervals along the first direction, parallel to the direction of extension and compression of the retractable airbag 1, each groove 23 corresponds to a gear. When the plunger part 43 slides into different grooves 23, the pressure plate 4 will also move to different positions along the first direction. Correspondingly, the degree of extension and compression of the retractable airbag 1 is different, and the volume of the gas inside the retractable airbag 1 is different. When the retractable airbag 1 is extended, the air pressure inside the retractable airbag 1 is different, so the suction cup 6 connected to the retractable airbag 1 can adsorb silicon wafers of different specifications and sizes.

[0083] Specifically, the gear corresponding to the groove 23 away from the gas channel 5 along the first direction is lower, and when the plunger part 43 slides into the interior of the groove 23 with the lower gear, the pressure plate 4 squeezes the retractable airbag 1, so that the degree of compression of the retractable airbag 1 is lower, and the volume of the gas discharged from the interior of the retractable airbag 1 is smaller. At this time, when the user applies a force to the pressing handle 3 away from the gas channel 5 along the first direction, when the plunger part 43 slides out from the interior of the groove 23 with the lower gear, the suction force generated by the suction cup 6 connected to the retractable airbag 1 is smaller.

[0084] The gear position corresponding to the groove 23 close to the gas channel 5 along the first direction is higher. When the plunger part 43 slides into the groove 23 with a higher gear position, the pressure plate 4 squeezes the retractable airbag 1, so that the retractable airbag 1 is compressed to a higher degree, and the volume of the gas discharged from the inside of the retractable airbag 1 is larger. At this time, when the user applies a force to the pressing handle 3 away from the gas channel 5 along the first direction, when the plunger part 43 slides out from the groove 23 with a higher gear position, the suction cup 6 connected to the retractable airbag 1 generates a larger adsorption force.

[0085] In the embodiment of the present application, a second slideway 22 extending along the first direction is provided on the inner wall of the sleeve 2 , and the second slideway 22 passes through a plurality of grooves 23 .

[0086] The plunger 43 slides in the second slideway 22. Since the second slideway 22 extending in the first direction is provided on the inner wall of the sleeve 2, and the second slideway 22 penetrates a plurality of grooves 23, the plunger 43 slides in the second slideway 22 as the pressure plate 4 slides. This improves the situation in which the plunger 43 deviates during the sliding process and does not slide into the groove 23.

[0087] refer to Figure 7 , Figure 7 A schematic diagram of the structure of a card slot in an airbag-type suction device provided in an embodiment of the present application is shown.

[0088] In the embodiment of the present application, a clamping groove 24 is provided on the inner wall of the sleeve 2. The function of the clamping groove 24 is to clamp with the pressure plate 4 so that the pressure plate 4 does not continue to slide along the first direction.

[0089] Specifically, a second protrusion 42 is provided on the outer peripheral surface of the pressure plate 4 , and the second protrusion 42 slides along the extending direction of the slot 24 and can be engaged with the slot 24 .

[0090] In the embodiment of the present application, the clamping slot 24 includes a clamping portion 243. The clamping portion 243 is used to clamp the second protrusion 42.

[0091] Specifically, the second protrusion 42 can slide into or out of the clamping portion 243 .

[0092] In the embodiment of the present application, the slot 24 further includes a first slide rail 241 . The second protrusion 42 can slide into the engaging portion 243 from the first slide rail 241 , so that the second protrusion 42 is engaged with the engaging portion 243 .

[0093] In the embodiment of the present application, the slot 24 further includes a second slide rail 242. The second protrusion 42 can slide out of the clamping portion 243 and slide into the second slide rail 242, so that the second protrusion 42 and the clamping portion 243 are released from the clamping portion.

[0094] During the operation of the airbag suction device, when the user presses the pressing handle 3, the pressing handle 3 applies a force to the pressure plate 4 along the first direction toward the gas channel 5, and the pressure plate 4 and the second protrusion 42 provided on the pressure plate 4 slide along the first direction toward the gas channel 5.

[0095] The second protrusion 42 slides into the clamping portion 243 from the end of the first slide rail 241 away from the gas channel 5 along the extension direction of the first slide rail 241, so that the second protrusion 42 is clamped with the clamping portion 243. After the second protrusion 42 is clamped with the clamping portion 243, the retractable airbag 1 is compressed, and part of the gas is discharged from the inside of the retractable airbag 1. The user does not need to keep pressing the pressing handle 3 when preparing to use the suction cup 6 to absorb the silicon wafer, which facilitates the user to adjust the posture of holding the airbag suction device and facilitates the air hole 61 on the suction cup 6 to fit the surface of the silicon wafer.

[0096] When the air hole 61 on the suction cup 6 is in contact with the surface of the silicon wafer, the user presses the pressing handle 3 again. The pressing handle 3 applies a force along the first direction toward the gas channel 5 to the pressing plate 4, and the pressing plate 4 and the second protrusion 42 provided on the pressing plate 4 slide along the first direction toward the gas channel 5.

[0097] The second protrusion 42 slides out of the clamping portion 243 and slides into the second slide rail 242, so that the second protrusion 42 is released from the clamping portion 243. Then, the second protrusion 42 slides along the second slide rail 242 from the end of the second slide rail 242 close to the gas channel 5 toward the pressing handle 3, and the retractable airbag 1 is no longer compressed but extended. Since the air pressure inside the retractable airbag 1 is relatively low, the air holes 61 on the suction cup 6 generate an adsorption force on the silicon wafer.

[0098] In the embodiment of the present application, the extension direction of the first slide rail 241 is parallel to the extension direction of the second slide rail 242. By setting the extension direction of the first slide rail 241 to be parallel to the extension direction of the second slide rail 242, the vertical distance between the first slide rail 241 and the second slide rail 242 will not change along the first direction. On the contrary, if the vertical distance between the first slide rail 241 and the second slide rail 242 increases or decreases along the first direction, accordingly, in the process of the pressure plate 4 driving the telescopic airbag 1 to extend or compress, the pressure plate 4 and the telescopic airbag 1 will rotate, and the telescopic airbag 1 will be damaged.

[0099] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships in the working state of the present application. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0100] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0101] The present application has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, various replacements and improvements may be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. An airbag suction device, characterized in that: include: A retractable airbag, wherein the retractable airbag is extended along a first direction to inhale gas; or the retractable airbag is compressed along the first direction to discharge gas; A sleeve, wherein the retractable airbag is arranged inside the sleeve; A pressing handle, the pressing handle is connected to the retractable airbag, the pressing handle partially protrudes from the sleeve, and the pressing handle is used to squeeze the retractable airbag or release the squeezing of the retractable airbag; A pressure plate, the pressure plate being located between the retractable airbag and the pressing handle to disperse the squeezing force applied by the pressing handle and act on the retractable airbag; Wherein, the first direction is the extending direction of the sleeve.

2. The airbag suction device according to claim 1, characterized in that: The retractable airbag comprises: A pressure-bearing surface, the pressure-bearing surface being in contact with the pressure plate; A folding surface, the folding surface is unfolded or folded along the first direction, and the folding surface is provided in multiple groups, and the multiple groups of folding surfaces are sequentially arranged along the first direction; The airbag suction device also includes a gas channel and a suction cup connected to the gas channel; Wherein, the folding surface arranged along the first direction close to the end of the pressing handle is connected to the outer peripheral surface of the pressure-bearing surface; The folding surface disposed along the first direction away from the end of the pressing handle is connected to the gas channel.

3. The airbag suction device according to claim 2, characterized in that: The folding surface includes a first surface, a second surface, and a connecting portion connecting the first surface and the second surface together; Wherein, a side of the first surface away from the connecting portion and a side of the second surface away from the connecting portion can move toward each other along the first direction, so that the retractable airbag discharges gas; The side of the first surface away from the connecting portion and the side of the second surface away from the connecting portion can move away from each other along the first direction, so that the retractable airbag can absorb gas.

4. The airbag suction device according to claim 1, characterized in that: The outer peripheral surface of the pressure plate and the inner wall surface of the sleeve slide relatively along the first direction.

5. The airbag suction device according to claim 1, characterized in that: A first slideway extending along the first direction is provided on the inner wall of the sleeve; A first protrusion is provided on the outer peripheral surface of the pressure plate; Wherein, the first protrusion slides in the first slideway.

6. The airbag suction device according to claim 1, characterized in that: A plurality of grooves are arranged on the inner wall of the sleeve at intervals along the first direction; A plunger portion is provided on the outer peripheral surface of the pressure plate; The plunger portion can slide into or out of any one of the grooves along the first direction.

7. The airbag suction device according to claim 6, characterized in that: A second slideway extending along the first direction is provided on the inner wall of the sleeve; the second slideway penetrates through the plurality of grooves; Wherein, the plunger part slides in the second slideway.

8. The airbag suction device according to any one of claims 1 to 7, characterized in that: A slot is provided on the inner wall of the sleeve; A second protrusion is provided on the outer peripheral surface of the pressure plate; The second protrusion slides along the extending direction of the slot and can be engaged with the slot.

9. The airbag suction device according to claim 8, characterized in that: The card slot comprises: A clamping portion, wherein the second protrusion can slide into or out of the clamping portion; a first slide rail, wherein the second protrusion can slide into the clamping portion from the first slide rail, so that the second protrusion is clamped with the clamping portion; The second slide rail, the second protrusion can slide out from the clamping portion and slide into the second slide rail, so that the second protrusion and the clamping portion are released from the clamping portion.

10. The airbag suction device according to claim 9, characterized in that: An extension direction of the first slide rail is parallel to an extension direction of the second slide rail.

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