Air suction device

Abstract

The utility model provides an air suction device. The air suction device comprises an installation frame body, a supporting platform, a conversion assembly and a draught fan component. Wherein the supporting platform is arranged on the mounting frame body, a first mounting plate is arranged on the supporting platform, and a plurality of first exhaust inlets are formed in the first mounting plate; the conversion assembly comprises a first air inlet and an air outlet, the first air inlet communicates with the air outlet, and the multiple first air suction openings communicate with the first air inlet; the fan component is connected with the air outlet so as to suck air through the fan component, so that air sequentially flows through the multiple first air suction openings, the first air inlet and the air outlet so as to form suction force at the multiple first air suction openings, and the elastic cloth cannot deform on the first mounting plate; therefore, the problem that in the prior art, a template sewing machine is difficult to shape elastic cloth, and consequently the production efficiency is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to an air suction device. Background Art

[0002] At present, when the template sewing machine in the prior art is used to sew elastic fabric, due to the elasticity of the fabric, it will cause difficulties in shaping the fabric and feeding the fabric. Usually, a special sewing machine presser foot is used to press the elastic fabric, which can effectively prevent the elastic fabric from being stretched and twisted during the sewing process.

[0003] However, when the presser foot of a sewing machine is used to press the elastic fabric, since the presser foot fixes the elastic fabric at a single point and the fabric needs to be folded and overlapped manually while sewing during the implementation process, the folded elastic fabric may rebound and deform at any time when the presser foot is used to assist in the sewing operation, which is not conducive to the subsequent template fixing operation, thereby seriously affecting the production efficiency and production quality. Utility Model Content

[0004] The main purpose of the utility model is to provide an air suction device to solve the problem that the template sewing machine in the prior art is difficult to shape the elastic fabric, resulting in low production efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an air suction device, comprising: a mounting frame; a supporting platform, which is arranged on the mounting frame, a first mounting plate is arranged on the supporting platform, and a plurality of first air suction ports are arranged on the first mounting plate; a conversion component, comprising a first air inlet and an air outlet, the first air inlet is connected to the air outlet, and the plurality of first air suction ports are respectively connected to the first air inlet; a fan component, which is connected to the air outlet to suck air through the fan component, so that the gas flows through the plurality of first air suction ports, the first air inlet and the air outlet in sequence to form suction at the plurality of first air suction ports, so that the elastic fabric cannot be deformed on the first mounting plate.

[0006] Furthermore, an installation groove is provided on the supporting platform, and the first installation plate is detachably installed in the installation groove, and an air suction gap is formed between the first installation plate and the bottom wall of the installation groove, and the first air inlet is connected with the installation groove, so that multiple first air suction ports are connected with the first air inlet through the air suction gap.

[0007] Furthermore, along the direction from the first air suction port to the first air inlet port, a step surface is provided at the opening edge of the mounting groove, a plurality of first connecting holes are arranged at intervals on the step surface, a plurality of second connecting holes are provided on the first mounting plate, and the plurality of first connecting holes are arranged one-to-one correspondingly to the plurality of second connecting holes, so that the first mounting plate can be removably installed in the mounting groove.

[0008] Furthermore, a second mounting plate is provided on the supporting platform, a mounting hole is provided at the bottom of the mounting slot, the second mounting plate is detachably mounted in the mounting hole, a second air suction port is provided on the second mounting plate, and the second air suction port is respectively connected to the air suction gap and the first air inlet.

[0009] Furthermore, a plurality of third connecting holes are spaced apart on the bottom wall of the mounting groove along the opening edge direction of the mounting hole, and a plurality of fourth connecting holes are arranged on the second mounting plate. The plurality of third connecting holes correspond one to one with the plurality of fourth connecting holes so that the second mounting plate can be removably installed in the mounting hole.

[0010] Furthermore, the second mounting plate includes a first plate segment and a second plate segment, the second air suction port is opened at the connection between the first plate segment and the second plate segment, the outer circumference of the first plate segment along the axial direction of the second air suction port is greater than the outer circumference of the second plate segment, a plurality of fourth connecting holes are respectively arranged on the first plate segment, and the first plate segment is used to connect to the bottom wall of the mounting slot.

[0011] Furthermore, the conversion component also includes a second air inlet, which is arranged opposite to the first air inlet, and the second air inlet can be selectively connected to the air outlet so that the fan component can suck air through the second air inlet.

[0012] Furthermore, the conversion component also includes a shell body, which has an air suction cavity inside. The first air inlet, the second air inlet and the air outlet are respectively arranged on the shell body and connected with the air suction cavity. An adjusting component is arranged in the air suction cavity, and the adjusting component is respectively cooperated and connected with the first air inlet and the second air inlet to connect the first air inlet or the second air inlet with the air suction cavity.

[0013] Furthermore, the adjusting component includes: a driving member; a first matching member and a second matching member, which are respectively connected to the opposite ends of the driving member, the first matching member and the first air inlet are arranged to cooperate with each other, and the second matching member and the second air inlet are arranged to cooperate with each other, so that the first matching member and the second matching member can be driven by the driving member to move relative to each other to block the first air inlet or the second air inlet.

[0014] Furthermore, the adjusting component also includes: two supporting members, which are respectively connected to the inner wall of the shell body, and the two supporting members are both provided with fixing holes. The two ends of the driving member are respectively passed through the two fixing holes to support the driving member.

[0015] Applying the technical solution of the utility model, the air suction device includes a mounting frame, a supporting platform, a conversion assembly and a fan component; wherein the supporting platform is arranged on the mounting frame, a first mounting plate is arranged on the supporting platform, and a plurality of first air suction ports are arranged on the first mounting plate; the conversion assembly includes a first air inlet and an air outlet, the first air inlet is connected to the air outlet, and the plurality of first air suction ports are respectively connected to the first air inlet; the fan component is connected to the air outlet to suck air through the fan component, so that the gas flows through the plurality of first air suction ports, the first air inlet and the air outlet in sequence to form suction at the plurality of first air suction ports, so that the elastic fabric cannot be deformed on the first mounting plate. In the above arrangement, a first mounting plate for carrying the elastic fabric is provided on the supporting platform. Since the first mounting plate has a plurality of first air suction ports, and the plurality of first air suction ports are respectively connected to the fan component after passing through the first air inlet and the air outlet of the conversion component, and then the air suction operation is performed through the fan component, so that the gas flows in from the plurality of first air suction ports respectively and flows through the first air inlet and flows out from the air outlet to the fan component, thereby forming suction at the plurality of first air suction ports to suck the elastic fabric located on the first mounting plate in a negative pressure suction manner, so that the elastic fabric placed on the first mounting plate after folding cannot rebound or deform, thereby providing convenience for the subsequent template fixing operation, thereby solving the problem that the template sewing machine in the prior art is difficult to shape the elastic fabric, resulting in low production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The overall structural diagram of the air suction device according to the embodiment of the utility model is shown;

[0018] Figure 2 A schematic diagram of the structure of a support platform, a conversion assembly and a fan component provided according to an embodiment of the air suction device of the utility model is shown;

[0019] Figure 3 A schematic structural diagram of a conversion assembly provided according to an embodiment of the air suction device of the utility model from a first viewing angle is shown;

[0020] Figure 4 A structural schematic diagram of a conversion assembly provided according to an embodiment of the air suction device of the utility model is shown from a second viewing angle.

[0021] The above drawings include the following reference numerals:

[0022] 10. Mounting frame; 20. Support platform; 21. First mounting plate; 210. First air inlet; 211. Second connecting hole; 22. Mounting groove; 221. Step surface; 222. First connecting hole; 223. Mounting hole; 224. Third connecting hole; 23. Second mounting plate; 231. Second air inlet; 232. Fourth connecting hole; 30. Conversion assembly; 31. First air inlet; 32. Air outlet; 33. Second air inlet; 34. Shell body; 35. Adjustment component; 350. Drive component; 351. First matching component; 352. Second matching component; 36. Support component; 361. Fixing hole; 40. Fan component. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to solve the problem that the template sewing machine in the prior art is difficult to shape the elastic fabric, resulting in low production efficiency, the utility model provides an air suction device.

[0025] like Figures 1 to 4 As shown, the suction device includes a mounting frame 10, a supporting platform 20, a conversion assembly 30 and a fan component 40; wherein the supporting platform 20 is arranged on the mounting frame 10, a first mounting plate 21 is arranged on the supporting platform 20, and a plurality of first suction ports 210 are arranged on the first mounting plate 21; the conversion assembly 30 includes a first air inlet 31 and an air outlet 32, the first air inlet 31 is connected to the air outlet 32, and a plurality of first suction ports 210 are respectively connected to the first air inlet 31; the fan component 40 is connected to the air outlet 32 ​​to suck air through the fan component 40, so that the gas flows through the plurality of first suction ports 210, the first air inlet 31 and the air outlet 32 ​​in sequence to form suction at the plurality of first suction ports 210, so that the elastic fabric cannot be deformed on the first mounting plate 21.

[0026] By applying the technical solution of this embodiment, a first mounting plate 21 for carrying elastic fabric is provided on the supporting platform 20. Since the first mounting plate 21 has a plurality of first air suction ports 210, and the plurality of first air suction ports 210 are respectively connected to the fan component 40 after passing through the first air inlet 31 and the air outlet 32 ​​of the conversion component 30, and then the fan component 40 performs a suction operation, so that the gas flows in from the plurality of first air suction ports 210 and flows through the first air inlet 31 and flows out from the air outlet 32 ​​to the fan component 40, thereby forming suction at the plurality of first air suction ports 210 to suck the elastic fabric on the first mounting plate 21 in a negative pressure suction manner, so that the elastic fabric placed on the first mounting plate 21 after folding cannot rebound or deform, thereby providing convenience for the subsequent template fixing operation, thereby solving the problem that the template sewing machine in the prior art is difficult to shape the elastic fabric, resulting in low production efficiency.

[0027] Optionally, the plurality of first air suction ports 210 may be evenly distributed on the first mounting plate 21, such as Figure 1 and Figure 2 As shown in , the plurality of first air suction ports 210 are all disposed at a certain corner of the first mounting plate 21 , and may also be distributed at other positions, or evenly distributed on the first mounting plate 21 .

[0028] Specifically, a mounting groove 22 is provided on the support platform 20, and the first mounting plate 21 is detachably mounted in the mounting groove 22. A suction gap is formed between the first mounting plate 21 and the bottom wall of the mounting groove 22, and the first air inlet 31 is connected to the mounting groove 22, so that the plurality of first air inlets 210 are connected to the first air inlet 31 through the suction gap. In the above arrangement, the first mounting plate 21 is covered in the mounting groove 22, so that the gas sucked through the plurality of first air inlets 210 is located in the suction gap and flows to the fan component 40 through the first air inlet 31 to perform the suction operation, thereby forming a strong suction force at the plurality of first air inlets 210 connected to the suction gap, so that the folded elastic fabric located on the first mounting plate 21 and in contact with the plurality of first air inlets 210 maintains its shape without rebounding; and the first mounting plate 21 is detachably arranged so that the first mounting plate 21 can be replaced when it is damaged.

[0029] like Figure 2As shown, a step surface 221 is provided at the opening edge of the mounting groove 22 along the direction from the first air suction port 210 to the first air inlet port 31, and a plurality of first connecting holes 222 are provided on the step surface 221 at intervals, and a plurality of second connecting holes 211 are provided on the first mounting plate 21. The plurality of first connecting holes 222 are provided in one-to-one correspondence with the plurality of second connecting holes 211, so that the first mounting plate 21 can be detachably installed in the mounting groove 22. In the above-mentioned arrangement, the first mounting plate 21 is installed in the mounting groove 22 and abuts against the step surface 221, and each first connecting hole 222 is respectively arranged corresponding to the second connecting hole 211, and bolts and other components are respectively penetrated into the first connecting hole 222 and the second connecting hole 211, so that the first mounting plate 21 is installed in the mounting groove 22, and then a suction gap is formed between the first mounting plate 21 and the groove bottom surface of the mounting groove 22, so that the gas enters the suction gap after passing through the multiple first suction ports 210 and then flows into the first air inlet 31, so as to form suction at the multiple first suction ports 210, so that the folded elastic fabric located on the first mounting plate 21 is shaped and will not deform arbitrarily, so as to solve the problem that the template sewing machine in the prior art is difficult to shape the elastic fabric, and the folded elastic fabric is prone to rebound and deformation, which is not conducive to the subsequent template fixing operation, and thus leads to low production efficiency.

[0030] Specifically, a second mounting plate 23 is provided on the support platform 20, a mounting hole 223 is provided at the bottom of the mounting groove 22, the second mounting plate 23 is detachably mounted in the mounting hole 223, a second air suction port 231 is provided on the second mounting plate 23, and the second air suction port 231 is respectively connected to the air suction gap and the first air inlet 31. The above arrangement enables a large amount of gas entering the air suction gap through the multiple first air suction ports 210 to flow to the fan component 40 through the second air suction port 231 and the first air inlet 31 and the air outlet 32 ​​of the conversion component 30, and then the fan component 40 performs negative pressure suction and forms suction at the multiple first air suction ports 210 to keep the folded elastic fabric from deforming on the first mounting plate 21.

[0031] Specifically, a plurality of third connecting holes 224 are spaced apart on the bottom wall of the mounting groove 22 along the opening edge direction of the mounting hole 223, and a plurality of fourth connecting holes 232 are arranged on the second mounting plate 23. The plurality of third connecting holes 224 correspond one to one with the plurality of fourth connecting holes 232 so that the second mounting plate 23 can be detachably mounted in the mounting hole 223. In the above-mentioned arrangement, each third connecting hole 224 is correspondingly arranged with the fourth connecting hole 232, and bolts or other components are respectively penetrated in the third connecting hole 224 and the fourth connecting hole 232, so that the second mounting plate 23 is installed in the mounting hole 223, and the second air suction port 231 is connected with the plurality of first air suction ports 210 through the air suction gap between the first mounting plate 21 and the second mounting plate 23, so that when the fan component 40 performs air suction, the gas enters the air suction gap from the plurality of first air suction ports 210 and then flows into the second air suction port 231 and then flows into the fan component 40 through the first air inlet 31 and the air outlet 32 ​​of the conversion component 30 to perform a negative pressure air suction operation, so that a large amount of gas flows into the air suction gap through the plurality of first air suction ports 210, so as to form a continuous and strong suction force at the plurality of first air suction ports 210, thereby preventing the elastic fabric located on the first mounting plate 21 from rebounding and deforming.

[0032] In order to facilitate the detachable installation of the second mounting plate 23 in the mounting hole 223, the second mounting plate 23 includes a first plate segment and a second plate segment, and the second air suction port 231 is provided at the connection between the first plate segment and the second plate segment. The outer perimeter of the first plate segment along the axis direction of the second air suction port 231 is greater than the outer perimeter of the second plate segment, and a plurality of fourth connection holes 232 are respectively provided on the first plate segment, and the first plate segment is used to connect with the bottom wall of the mounting slot 22. With the above arrangement, when the second mounting plate 23 is installed in the mounting hole 223, the second plate segment just cooperates with the mounting hole 223 to block the mounting hole 223, and the first plate segment is located in the mounting slot 22 and contacts with the bottom of the mounting slot 22, and then the plurality of fourth connection holes 232 on the first plate segment are correspondingly connected with the plurality of third connection holes 224 at the bottom of the mounting slot 22, so that the first plate segment drives the second plate segment to cooperate with the mounting hole 223, and the gas in the air suction gap flows into the first air inlet 31 of the conversion assembly 30 through the second air suction port 231.

[0033] Optionally, the conversion assembly 30 further includes a second air inlet 33, which is arranged opposite to the first air inlet 31, and the second air inlet 33 can be selectively connected to the air outlet 32, so that the fan component 40 can suck air through the second air inlet 33. With the above arrangement, when the negative pressure suction of the elastic fabric located on the first mounting plate 21 is cancelled, the second air inlet 33 of the conversion assembly 30 can be connected to the air outlet 32 ​​and then to the fan component 40, and then the fan component 40 can suck air through the second air inlet 33 to form suction at the second air inlet 33, and suction will not be formed at the multiple first suction ports 210.

[0034] like Figure 3 and Figure 4 As shown, the conversion assembly 30 also includes a shell body 34, which has an air suction cavity. The first air inlet 31, the second air inlet 33 and the air outlet 32 ​​are respectively arranged on the shell body 34 and connected with the air suction cavity. An adjusting component 35 is arranged in the air suction cavity, and the adjusting component 35 is respectively connected with the first air inlet 31 and the second air inlet 33 to connect the first air inlet 31 or the second air inlet 33 with the air suction cavity. In the above-mentioned arrangement, the conversion component 30 is arranged on the mounting frame 10, and the first air inlet is connected to the second air suction port 231 on the supporting platform 20 through a ventilation duct, so that when negative pressure suction is performed, the second air inlet 33 is connected in coordination with the control and adjustment component 35 to block the second air inlet 33, so that the first air inlet 31 is respectively connected with the second air suction port 231 and the suction cavity, and the gas sucked in from the multiple first air suction ports 210 flows into the suction cavity of the conversion component 30, and then flows to the fan component 40 through the air outlet 32 ​​to perform negative pressure suction operation; and when the negative pressure suction is canceled, the first air inlet 31 is connected in coordination with the control and adjustment component 35 to block the first air inlet 31, and then the fan component 40 performs negative pressure suction operation through the second air inlet 33.

[0035] Specifically, the regulating component 35 includes a driving component 350, a first matching component 351, and a second matching component 352; wherein the first matching component 351 and the second matching component 352 are respectively connected to opposite ends of the driving component 350, the first matching component 351 is arranged to cooperate with the first air inlet 31, and the second matching component 352 is arranged to cooperate with the second air inlet 33, so that the driving component 350 drives the first matching component 351 and the second matching component 352 to move relative to each other to block the first air inlet 31 or the second air inlet 33. With the above arrangement, when the fan component 40 performs a negative pressure suction operation or cancels the operation, the driving component 350 drives the first matching component 351 or the second matching component 352 to move to cooperate with the corresponding air inlet to block one of the first air inlet 31 and the second air inlet 33, and then the fan component 40 performs a negative pressure suction operation through the other of the first air inlet 31 and the second air inlet 33.

[0036] In this embodiment, the driving member 350 is a bidirectional cylinder, and the first matching member 351 and the second matching member 352 are rubber plugs respectively.

[0037] Specifically, the adjusting component 35 further includes two supporting members 36, which are respectively connected to the inner wall of the shell body 34, and the two supporting members 36 are provided with fixing holes 361, and the two ends of the driving member 350 are respectively penetrated through the two fixing holes 361 to support the driving member 350. In the above arrangement, the two supporting members 36 are respectively arranged in the air suction cavity and fixedly connected to the inner wall of the shell body 34 by multiple bolts or other components, and the driving member 350 is respectively penetrated through the fixing holes 361 on the two supporting members 36 to achieve support and fixation of the driving member 350, and the first matching member 351 and the second matching member 352 are respectively connected to the two ends of the driving member 350 by connecting rods, and then the first matching member 351 or the second matching member 352 can be driven by the driving member 350 to move toward the corresponding air inlet to block the air inlet.

[0038] In this embodiment, a plurality of driving wheels are respectively disposed at the bottom of the mounting frame 10 so as to contact the supporting base surface respectively through the plurality of driving wheels and drive the mounting frame 10 to move.

[0039] In this embodiment, the air suction device further includes a foot switch, which is used to control the driving member 350 to drive the first matching member 351 or the second matching member 352 to move, so as to control the opening and closing of the first air inlet 31 or the second air inlet 33.

[0040] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0041] The air suction device includes a mounting frame, a supporting platform, a conversion assembly and a fan component; wherein the supporting platform is arranged on the mounting frame, a first mounting plate is arranged on the supporting platform, and a plurality of first air suction ports are arranged on the first mounting plate; the conversion assembly includes a first air inlet and an air outlet, the first air inlet is connected to the air outlet, and the plurality of first air suction ports are respectively connected to the first air inlet; the fan component is connected to the air outlet to suck air through the fan component, so that the gas flows through the plurality of first air suction ports, the first air inlet and the air outlet in sequence to form suction at the plurality of first air suction ports, so that the elastic fabric cannot be deformed on the first mounting plate. In the above arrangement, a first mounting plate for carrying the elastic fabric is provided on the supporting platform. Since the first mounting plate has a plurality of first air suction ports, and the plurality of first air suction ports are respectively connected to the fan component after passing through the first air inlet and the air outlet of the conversion component, and then the air suction operation is performed through the fan component, so that the gas flows in from the plurality of first air suction ports respectively and flows through the first air inlet and flows out from the air outlet to the fan component, thereby forming suction at the plurality of first air suction ports to suck the elastic fabric located on the first mounting plate in a negative pressure suction manner, so that the elastic fabric placed on the first mounting plate after folding cannot rebound or deform, thereby providing convenience for the subsequent template fixing operation, thereby solving the problem that the template sewing machine in the prior art is difficult to shape the elastic fabric, resulting in low production efficiency.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0044] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A suction device, characterized in that: include: Installing the frame (10); A support platform (20) is arranged on the mounting frame (10), a first mounting plate (21) is arranged on the support platform (20), and a plurality of first air suction ports (210) are arranged on the first mounting plate (21); A conversion assembly (30) comprising a first air inlet (31) and an air outlet (32), wherein the first air inlet (31) is connected to the air outlet (32), and the plurality of first air suction ports (210) are respectively connected to the first air inlet (31); A fan component (40) is connected to the air outlet (32) so as to suck air through the fan component (40) so that the gas flows through the plurality of first air suction ports (210), the first air inlet (31) and the air outlet (32) in sequence to form suction force at the plurality of first air suction ports (210) so as to prevent the elastic fabric from being deformed on the first mounting plate (21).

2. The air suction device according to claim 1, characterized in that: The support platform (20) is provided with a mounting groove (22), the first mounting plate (21) is detachably mounted in the mounting groove (22), an air suction gap is formed between the first mounting plate (21) and the bottom wall of the mounting groove (22), and the first air inlet (31) is connected to the mounting groove (22), so that a plurality of the first air suction ports (210) are connected to the first air inlet (31) through the air suction gap.

3. The air suction device according to claim 2, characterized in that: Along the direction from the first air suction port (210) to the first air inlet port (31), a step surface (221) is provided at the opening edge of the mounting groove (22), a plurality of first connection holes (222) are arranged at intervals on the step surface (221), a plurality of second connection holes (211) are provided on the first mounting plate (21), and the plurality of first connection holes (222) and the plurality of second connection holes (211) are arranged one-to-one correspondingly, so that the first mounting plate (21) can be detachably mounted in the mounting groove (22).

4. The air suction device according to claim 3, characterized in that: A second mounting plate (23) is arranged on the support platform (20); a mounting hole (223) is provided at the bottom of the mounting groove (22); the second mounting plate (23) is detachably mounted in the mounting hole (223); a second air suction port (231) is arranged on the second mounting plate (23); the second air suction port (231) is respectively connected to the air suction gap and the first air inlet (31).

5. The air suction device according to claim 4, characterized in that: A plurality of third connection holes (224) are arranged on the bottom wall of the mounting groove (22) at intervals along the opening edge direction of the mounting hole (223), and a plurality of fourth connection holes (232) are arranged on the second mounting plate (23). The plurality of third connection holes (224) and the plurality of fourth connection holes (232) are arranged in a one-to-one correspondence, so that the second mounting plate (23) can be detachably mounted in the mounting hole (223).

6. The air suction device according to claim 5, characterized in that: The second mounting plate (23) comprises a first plate segment and a second plate segment, the second air suction port (231) is provided at the connection between the first plate segment and the second plate segment, the outer circumference of the first plate segment along the axial direction of the second air suction port (231) is greater than the outer circumference of the second plate segment, a plurality of fourth connecting holes (232) are respectively provided on the first plate segment, and the first plate segment is used for connecting to the bottom wall of the mounting slot (22).

7. The air suction device according to claim 1, characterized in that: The conversion assembly (30) further comprises a second air inlet (33), the second air inlet (33) being arranged opposite to the first air inlet (31), and the second air inlet (33) being selectively connected to the air outlet (32) so that the fan component (40) can draw air through the second air inlet (33).

8. The air suction device according to claim 7, characterized in that: The conversion assembly (30) also includes a shell body (34), the shell body (34) has an air suction cavity, the first air inlet (31), the second air inlet (33) and the air outlet (32) are respectively arranged on the shell body (34) and are connected to the air suction cavity, and an adjustment component (35) is arranged in the air suction cavity, and the adjustment component (35) is respectively connected to the first air inlet (31) and the second air inlet (33) so that the first air inlet (31) or the second air inlet (33) is connected to the air suction cavity.

9. The air suction device according to claim 8, characterized in that: The adjusting component (35) comprises: A driving member (350); The first matching piece (351) and the second matching piece (352) are respectively connected to the opposite ends of the driving piece (350); the first matching piece (351) and the first air inlet (31) are arranged to cooperate with each other, and the second matching piece (352) and the second air inlet (33) are arranged to cooperate with each other, so that the first matching piece (351) and the second matching piece (352) are driven by the driving piece (350) to move relative to each other to block the first air inlet (31) or the second air inlet (33).

10. The air suction device according to claim 9, characterized in that: The adjusting component (35) further comprises: Two support members (36) are respectively connected to the inner wall of the shell body (34); the two support members (36) are both provided with fixing holes (361); and the two ends of the driving member (350) are respectively passed through the two fixing holes (361) to support the driving member (350).

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