Gas collecting device

Abstract

The utility model discloses a gas collecting device which comprises a gas outlet component used for guiding out collected gas. The air outlet component comprises an air outlet pipe and a charging connector. One end of the air outlet pipe is connected with the charging connector. A wiring channel and an air outlet channel are formed in the air outlet pipe, the wiring channel is arranged on one side of the air outlet channel, and the wiring channel is communicated with the charging connector; a plurality of air outlet holes are formed in the air outlet pipe and are communicated with the air outlet channel. The wiring channel is formed in the air outlet pipe, the charging connector is arranged at one end of the air outlet pipe, so that the wiring arrangement of the charging part of the device is optimized, the size of the device can be reduced, meanwhile, the air outlet channel is formed in the air outlet pipe, the air outlet hole connected with the air outlet channel is formed in the side face of the air outlet pipe, and the charging connector is arranged at the other end of the air outlet pipe. The gas is discharged from the side surface of the gas outlet pipe, so that the contact range of the gas outlet end and the external environment is enlarged, and the diffusion effect of the purified gas in the environment is further optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smoke purification, in particular to a gas collecting device. BACKGROUND

[0002] With the increasing demand for air quality, people also have an increasing demand for devices that can collect and purify gas. In particular, in some closed environments, such as indoors, in vehicles, etc., the prior art usually uses some devices that can collect and purify gas to achieve the purpose of air purification.

[0003] The related gas collecting device outlet is generally arranged at one end of the outlet pipe, which is not conducive to the diffusion of the purified gas, and the charging connector is arranged at a position that makes the wiring complex and inconvenient for user charging operation. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides a gas collecting device, which can combine the wiring part that needs to be connected to the power supply in the electrical part with the outlet part, optimizes the wiring arrangement mode of the device, and combines the end part of the charging with the end part of the outlet part on the side of the outlet pipe, thereby reducing the volume of the device and optimizing the diffusion effect of the purified gas in the environment.

[0005] In a first aspect, the embodiment of the present application provides a gas collecting device, comprising:

[0006] An outlet part is used to guide the collected gas out; the outlet part comprises an outlet pipe and a charging connector, and the charging connector is arranged at one end of the outlet pipe;

[0007] A wiring channel and an outlet channel are formed in the outlet pipe, and an electrical connection line connected with the charging connector is arranged in the wiring channel; a plurality of outlet holes are arranged on the side of the outlet pipe, and the outlet holes are in communication with the outlet channel.

[0008] In some embodiments, the plurality of outlet holes are arranged on the side of the outlet pipe close to the outlet channel, and the plurality of outlet holes are uniformly distributed along the length direction of the outlet pipe.

[0009] In some embodiments, the charging connector comprises:

[0010] A clamping plug is arranged at one end of the outlet pipe, a clamping groove is arranged in the clamping plug, and the clamping groove is in communication with the wiring channel;

[0011] A circuit board is arranged in the clamping groove, and the circuit board is connected with the electrical connection line in the wiring channel.

[0012] A charging interface electrically connected to the circuit board.

[0013] In some embodiments, the side of the gas outlet channel is provided with two wire channels extending in the same direction.

[0014] In some embodiments, the gas collection device further comprises a negative pressure component, one end of which is connected to the gas inlet end of the gas collection device, and the other end of which is connected to the end of the gas outlet tube away from the charging terminal, the negative pressure component being used to drive the gas around the gas collection device into the gas collection device for purification.

[0015] In some embodiments, the negative pressure component comprises:

[0016] A machine body for mounting a motor, a pump wheel and a filter;

[0017] A motor disposed in the machine body;

[0018] A pump wheel disposed in the machine body, the pump wheel being connected to the motor;

[0019] A filter disposed in the machine body, the filter being disposed around the outside of the motor;

[0020] The motor drives the pump wheel to rotate to transport the gas outside the gas collection device from the gas inlet end into the filter.

[0021] In some embodiments, the machine body comprises:

[0022] A first cavity connected to the gas inlet end, the first cavity being provided with the pump wheel therein;

[0023] A second cavity provided on the side of the first cavity away from the gas inlet end, the second cavity being provided with the motor therein;

[0024] A treatment cavity, which is an annular cavity provided around the second cavity, the treatment cavity being in airflow communication with the first cavity, and the filter being disposed in the treatment cavity.

[0025] In some embodiments, the machine body further comprises a first sealing sleeve, the first sealing sleeve being sleeved at the connection between the gas outlet tube and the negative pressure component.

[0026] In some embodiments, the machine body further comprises an upper machine body, a lower machine body and a second sealing sleeve, the first cavity being formed in the upper machine body, the upper machine body and the lower machine body being connected to form the second cavity and the treatment cavity, and the second sealing sleeve being sleeved at the connection between the upper machine body and the lower machine body.

[0027] In some embodiments, a radial air outlet is formed in the lower body; a threaded connection pipe head is provided at one end of the air outlet pipe near the lower body, the threaded connection pipe head is threaded to the lower body, and the threaded connection pipe head is provided with an air outlet grille corresponding to the radial air outlet.

[0028] The beneficial effects of this application are as follows: By forming a wiring channel inside the air outlet pipe and setting a charging connector at one end of the air outlet pipe, the wiring arrangement of the charging part of the device is optimized, thereby reducing the size of the device. The location of the charging connector makes the charging operation more convenient for users. At the same time, by forming an air outlet channel inside the air outlet pipe and setting an air outlet hole connected to the air outlet channel on the side of the air outlet pipe, the gas is discharged from the side of the air outlet pipe, increasing the contact range between the air outlet end and the external environment, thereby optimizing the diffusion effect of the purified gas in the environment. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a bottom view of the air outlet component structure according to an embodiment of this application;

[0031] Figure 2 This is a radial cross-sectional schematic diagram of the air outlet component according to one embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the collection device structure according to one embodiment of this application;

[0033] Figure 4 It is in this application Figure 3 A three-dimensional cross-sectional schematic diagram of the GG structure;

[0034] Figure 5 It is in this application Figure 3 A schematic cross-sectional view of a GG structure according to one embodiment;

[0035] Figure 6 It is in this application Figure 3 A cross-sectional view of the GG structure in another embodiment;

[0036] Figure 7 This is a radial cross-sectional view of the negative pressure component structure according to one embodiment of this application;

[0037] Figure 8Figure 1 is a schematic diagram of a motor support structure according to an embodiment of the present application.

[0038] Reference signs:

[0039] 10 - gas outlet component; 11 - gas outlet pipe; 12 - charging connector; 13 - wire passage; 14 - gas outlet passage; 15 - gas outlet hole; 16 - electrical connection wire; 121 - clamping plug; 122 - charging interface;

[0040] 20 - negative pressure component; 21 - machine body; 22 - motor; 23 - pump wheel; 24 - filter; 211 - first cavity; 212 - second cavity; 213 - processing cavity; 25 - support; 26 - top cover; 251 - counterbore bolt hole; 27 - first sealing sleeve; 214 - upper machine body; 215 - lower machine body; 216 - second sealing sleeve;

[0041] 30 - first groove; 40 - wire passage; 50 - radial gas outlet hole; 60 - second groove; 70 - third groove; 80 - fourth groove; 90 - fifth groove;

[0042] 100 - main deck; 101 - air vent; 102 - central shaft hole; 103 - motor support;

[0043] 200 - threaded connection pipe head; 201 - gas outlet grid. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] Please refer to Figure 1 , Figure 2 and Figure 3 Some embodiments of the present application provide a gas collection device, which comprises:

[0046] A gas outlet component 10 is used to guide the collected gas out; the gas outlet component 10 comprises a gas outlet pipe 11 and a charging connector 12, and one end of the gas outlet pipe 11 is provided with the charging connector 12.

[0047] The wire passage 13 and the gas outlet passage 14 are formed in the gas outlet pipe 11, the wire passage 13 is provided with an electrical connection wire 16 which is in communication connection with the charging connector 12; the side surface of the gas outlet pipe 11 is provided with a plurality of gas outlet holes 15 which are in communication with the gas outlet passage 14.

[0048] The gas outlet pipe 11 discharges gas through the gas outlet holes 15 on the gas outlet channel 14 and arranges the power connection part in the gas collection device through the wire channel 13, i.e. the electric connection wire 16 connected with the charging connector 12. In some embodiments, the wire channel 13 is used to arrange the electric connection wire 16 of the motor 22 described in the following embodiments. The charging connector 12 is used to connect the power supply to power the gas collection device. The charging connector 12 is arranged at a position that makes the charging operation more convenient for the user.

[0049] In some embodiments of the present application, in order to reduce the volume of the collection device, the gas collection device is arranged in a way that the charging power supply is external, and then the power supply is connected through the charging structure described above. In another embodiment of the present application, a detachable battery for storing electric quantity is arranged in the gas collection device to power the gas collection device.

[0050] In the present embodiment, unlike the prior art in which the gas outlet end is arranged at the end of the gas outlet pipe 11, by arranging the end as a charging port and arranging the gas outlet holes 15 on the side of the gas outlet pipe 11, the effects of accommodating the wire and discharging gas can be achieved at the same time, thereby optimizing the structure of the device, reducing the volume of the device, and simplifying the wire arrangement of the device. At the same time, the plurality of gas outlet holes 15 arranged on the side can increase the contact range with the surrounding environment, thereby making the purified gas enter the environment more quickly during discharging, improving the purification efficiency, and improving the comfort of use.

[0051] In some embodiments, please refer to Figure 2 The plurality of gas outlet holes 15 are arranged on the side of the gas outlet pipe 11 close to the gas outlet channel 14, and the plurality of gas outlet holes 15 are uniformly distributed along the length direction of the gas outlet pipe 11 (the direction is shown by the arrow in Figure 2 ).

[0052] The purpose of this arrangement is to optimize the arrangement position of the gas outlet holes 15, so that the gas in the gas outlet channel 14 can reach the external environment more quickly, and at the same time, to optimize the arrangement mode of the gas outlet holes 15. Compared with arranging the gas outlet position at the end, in the present embodiment, the plurality of gas outlet holes 15 are uniformly distributed along the length direction of the gas outlet pipe 11, i.e. the plurality of gas outlet holes 15 are arranged at equal intervals, which can further improve the contact range with the surrounding environment, thereby improving the discharging efficiency.

[0053] The structure of the charging connector is described in detail. In some embodiments, please refer to Figure 1 The charging connector 12 comprises:

[0054] A clamping plug 121 is arranged at one end of the gas outlet pipe 11, and a clamping plate groove is arranged in the clamping plug 121, which is in communication with the wire channel 13;

[0055] The circuit board is arranged in the clamping groove, and the circuit board is connected with the electrically connecting wire 16 in the wire channel;

[0056] The charging interface 122 is electrically connected with the circuit board.

[0057] The clamping plug 121 is used for mounting the circuit board and the charging interface 122, and the circuit board is embedded in the clamping groove. The charging interface 122 is used for connecting the power supply. The circuit board is a micro circuit board.

[0058] In some embodiments, the charging interface 122 is a USB interface. In other embodiments, the charging interface 122 is a type-c interface. In yet other embodiments, the charging connector 12 is connected with the vehicle-mounted power supply, so that the power consumption of the motor 22 is supplied by the vehicle-mounted power supply.

[0059] In some embodiments, please refer to Figure 2 , the side of the air outlet channel 14 is provided with two wire channels 13 extending in the same direction.

[0060] Please refer to Figure 3 , the gas collecting device in some embodiments of the application further comprises a negative pressure component 20, one end of the negative pressure component 20 is connected with the air inlet end of the gas collecting device, the other end of the negative pressure component 20 is connected with the end of the air outlet pipe 11 away from the charging connector 12, and the negative pressure component 20 is used to drive the gas around the gas collecting device to enter the gas collecting device for purification.

[0061] The specific structure of the negative pressure component will be described in detail below. In some embodiments, please refer to Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , the negative pressure component 20 comprises:

[0062] The machine body 21 is used for mounting the motor 22, the pump wheel 23 and the filter 24;

[0063] The motor 22 is arranged in the machine body 21;

[0064] The pump wheel 23 is arranged in the machine body 21, and the pump wheel 23 is connected with the motor 22;

[0065] The filter 24 is arranged in the machine body 21, and the filter 24 is arranged outside the motor 22;

[0066] The motor 22 drives the pump wheel 23 to rotate, so as to transport the gas outside the gas collecting device from the air inlet end to the filter 24.

[0067] The machine body 21 is a housing structure for mounting the motor 22, the pump wheel 23 and the filter 24. The motor 22 is used to drive the pump wheel 23 to rotate, so that the inside of the negative pressure component 20 generates negative pressure, and then the gas outside the gas collecting device is transported from the air inlet end to the filter 24. The filter 24 is used to filter the gas. The air inlet end can be other existing air inlet components or existing structures such as air inlet pipes, which will not be described in detail here. In some embodiments, the motor 22 is a speed-reducing motor.

[0068] In this embodiment, in order to facilitate the reduction of the volume of the overall device, or the volume of the negative pressure component 20, the filter 24 is arranged to surround the outside of the motor 22, thereby compressing the arrangement space of the motor 22 and the pump wheel 23 in the machine body 21, and playing a role in reducing the volume.

[0069] The internal structure of the machine body 21 will be described in detail below. In some embodiments, please refer to Figure 5 、 Figure 6 and Figure 7 , the machine body 21 comprises:

[0070] The first cavity 211 is connected with the air inlet end, and the pump wheel 23 is arranged in the first cavity 211;

[0071] The second cavity 212 is arranged on the side of the first cavity 211 away from the air inlet end, and the motor 22 is arranged in the second cavity 212;

[0072] The processing cavity 213 is an annular cavity arranged around the second cavity 212, the processing cavity 213 is in airflow communication with the first cavity 211, and the filter 24 is arranged in the processing cavity 213.

[0073] In this embodiment, the first cavity 211 is used to mount the pump wheel 23, and the first cavity 211 provides sufficient space for the pump wheel 23 to rotate. At the same time, one side of the first cavity 211 is in communication with the port of the air inlet end of the device, and the gas entering from the air inlet end can be driven to enter the first cavity 211 by the negative pressure generated by the continuous high-speed rotation of the pump wheel 23. The pump wheel 23 is provided with a plurality of fan blades and a rotating shaft, the plurality of fan blades are arranged around the circumference of the rotating shaft, one end of the rotating shaft penetrates the first cavity 211 and enters the second cavity 212 to be connected with the motor 22, so that the motor 22 can drive the rotating shaft to rotate and drive the fan blades to rotate, and then drive the pump wheel 23 to work. The pump wheel 23 can also adopt the structure of the pump wheel 23 in the prior art, which will not be described in detail here.

[0074] In the embodiment, the second cavity 212 is used to install the motor 22, and the second cavity 212 provides sufficient accommodation space for the motor 22. The other side of the first cavity 211 can be communicated with the second cavity 212, and the purpose is to realize the electrical connection between the pump wheel 23 and the motor 22. In this case, the motor 22 needs to be a certain distance from the inner wall of the second cavity 212 to ensure the normal operation of the motor 22. In an example, the motor 22 is a speed reducer.

[0075] In the embodiment, the processing cavity 213 is used to install the filter 24, and the filter 24 is filled in the processing cavity 213, which can purify the gas input from the first cavity 211 into the processing cavity 213.

[0076] In some embodiments, the material of the filter 24 can be ceramic material or cotton material. In other embodiments, the filter 24 is a ceramic filter membrane.

[0077] In the embodiment, the processing cavity 213 is an annular cavity arranged around the second cavity 212, and the second cavity 212 is arranged inside the processing cavity 213. Correspondingly, the filter 24 is annular, and the second cavity 212 is arranged inside the processing cavity 213. At this time, the motor 22 can be arranged inside the filter 24 to reduce the volume of the negative pressure component 20 and save the material for producing the negative pressure component 20.

[0078] In some embodiments, the structure of the processing cavity 213 is further described in detail, please refer to Figure 2 The side wall of the processing cavity 213 is provided with a first groove 30, and the first groove 30 is used to embed the filter 24.

[0079] In the working process, the motor 22 drives the pump wheel 23 to rotate to generate negative pressure, and the gas entering the air inlet is guided into the first cavity 211, and then into the processing cavity 213, and then purified by the filter 24 and discharged.

[0080] In some embodiments, please refer to Figure 5 The side of the pump wheel 23 away from the motor 22 is also provided with a support 25, and the support 25 is embedded in the first cavity 211 and used to install a top cover 26. The top cover 26 is used to install the components of the air inlet part of the device. Specifically, the support 25 has an annular structure, the cross section of the support 25 is a horizontal T shape, and the bottom of the support 25 is slidingly supported by the rim of the pump wheel 23. Further, the side surface of the support 25 is provided with a plurality of countersunk bolt holes 251, and the countersunk bolt holes 251 are used to fix the support 25 in the machine body 21. In the following example, the upper machine body 214 is taken as an example, the countersunk bolts are inserted into the countersunk bolt holes 251 through the upper machine body 214, and then the installation of the support 25 is completed.

[0081] In some embodiments, please refer toFigure 5 and Figure 6 The body 21 further comprises a wire channel 40, one end of which is in communication with the second cavity 212, and the other end of which is in communication with the clean air channel 233. The wire channel 40 can serve as a wire outlet for the electrical connection wire 16 of the motor 22, so as to lead the electrical connection wire 16 of the motor 22 out of the body 21 and then connect to the power supply.

[0082] In some embodiments, please refer to Figure 5 The body 21 further comprises a first sealing sleeve 27, which is sleeved on the connection between the air outlet pipe 11 and the negative pressure component 20.

[0083] In the present embodiment, the first sealing sleeve 27 is used to improve the connection stability of the connection between the air outlet pipe 11 and the negative pressure component 20, and to improve the sealing performance of the connection between the negative pressure component 20 and the air outlet component 10. In some embodiments, the first sealing sleeve 27 is a telescopic sealing sleeve, which is arranged at the bottom of the lower body 215 in some embodiments, and the bottom of the telescopic sealing sleeve is sealedly sleeved on the air outlet pipe 11.

[0084] Further description of the structure of the body 21 is given as follows. In some embodiments, please refer to Figure 5 and Figure 6 The body 21 further comprises an upper body 214, a lower body 215, and a second sealing sleeve 216. The first cavity 211 is formed in the upper body 214. The upper body 214 and the lower body 215 are connected to form the second cavity 212 and the processing cavity 213. The second sealing sleeve 216 is sleeved on the connection between the upper body 214 and the lower body 215.

[0085] In the present embodiment, the second sealing sleeve 216 is used to fix the upper body 214 and the lower body 215. When disassembling, the second sealing sleeve 216 needs to be separated from the upper body 214 and the lower body 215 first, and then the upper body 214 and the lower body 215 are separated. In some embodiments, the second sealing sleeve 216 is a sealing screw sleeve, and the connection between the upper body 214 and the lower body 215 is provided with corresponding threads to realize the threaded connection of the three.

[0086] In the embodiment, specifically, the first cavity 211 is formed on the side of the upper body 214 away from the lower body 215, the second groove 60 and the third groove 70 are formed on the side of the upper body 214 close to the lower body 215, and the fourth groove 80 and the fifth groove 90 are formed on the side of the lower body 215 close to the upper body 214. The second cavity 212 is formed by the second groove 60 and the fourth groove 80, and the processing cavity 213 is formed by the third groove 70 and the fifth groove 90. Meanwhile, the wire channel 40 is formed on the side of the lower body 215 away from the upper body 214. The purpose of the above arrangement is to divide the body 21 into the upper body 214 and the lower body 215 to realize detachable connection of the structure and facilitate replacement of the filter 24.

[0087] In the embodiment, please refer to Figure 5 and Figure 6 The main deck 100 is arranged in the upper body 214, and the first cavity 211 and the second cavity 212 are separated by the main deck 100. The air vent 101 is arranged on the main deck 100 to realize communication between the first cavity 211 and the processing cavity 213. In the embodiment, the main deck 100 is further provided with the central shaft hole 102 to realize communication between the first cavity 211 and the second cavity 212. The central shaft hole 102 is coaxially matched with the output end of the motor 22, so that the rotating shaft can pass through the central shaft hole 102 to realize driving of the pump wheel 23 by the motor 22.

[0088] In some embodiments, please refer to Figure 8 The motor 22 is sleeved with the motor support 103, and the motor 22 is fixedly installed in the second cavity 212 through the motor support 103. In some embodiments, the motor support 103 includes a ring body, and the ring body is provided with a support hole matched with the side profile of the motor 22.

[0089] In some embodiments, please refer to Figure 5 and Figure 6 The radial air outlet hole 50 is formed in the lower body 215;

[0090] The threaded connection pipe head 200 is arranged on the end of the air outlet pipe 11 close to the lower body 215, and the threaded connection pipe head 200 is threadedly connected to the lower body 215. The threaded connection pipe head 200 is provided with the air outlet grille 201 corresponding to the radial air outlet hole 50.

[0091] In the embodiment, the threaded connection pipe head 200 is used to threadedly connect the air outlet pipe 11 and the lower body 215 to realize installation of the two. The air outlet grille 201 is used to ensure smooth airflow and filter or block dust and sand to ensure cleanliness of the discharged gas.

[0092] In some examples, the filter 24 can be used to replace the air outlet grille 201 to further filter and increase the cleanliness of the discharged air.

[0093] In some embodiments, referring to Figure 6 The electrical connection line 16 of the motor 22 passes through the wire channel 40, then passes through the air outlet grille 201, enters the wire channel 13, and is finally connected with the charging connector 12.

[0094] In some embodiments of the present application, the collection device provided by the present application connects the bottom of the air outlet component 10 with the vehicle power supply in a USB connection manner. After the motor 22 is started, the pump wheel 23 can be continuously and high-speed rotated to generate negative pressure. The negative pressure generated by the negative pressure component 20 can make the air inlet end suck the smoke from the vehicle interior, which is beneficial to avoid the electronic cigarette smoke from being attached in a large area in the vehicle interior. The electronic cigarette smoke is filtered by the ceramic filter membrane. The clean air after the treatment can be discharged from the radial air outlet hole 50, the air outlet channel 14 and the air outlet hole 15, so as to achieve the purpose of automatically purifying the vehicle interior environment.

[0095] The above description is only the embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent flow conversion obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A gas collection device, characterized by, include: A gas outlet component is used to discharge the collected gas; the gas outlet component includes a gas outlet pipe and a charging connector, and the charging connector is provided at one end of the gas outlet pipe. The vent pipe has a wiring channel and a venting channel. The wiring channel is provided with an electrical connection wire that connects to the charging connector. The side of the vent pipe has a number of vent holes, which are connected to the venting channel.

2. The gas collecting device according to claim 1, characterized in that, Several air outlets are disposed on the side of the air outlet pipe near the air outlet channel, and the several air outlets are evenly distributed along the length of the air outlet pipe.

3. The gas collection device of claim 1, wherein, The charging connector includes: A clamping plug is provided at one end of the air outlet pipe, and a clamping plate groove is provided inside the clamping plug, which is connected to the wiring channel; A circuit board, wherein the circuit board is disposed in the clamping plate groove and is connected to the electrical connection wires in the wiring channel; A charging interface is electrically connected to the circuit board.

4. The gas collection device of claim 1, wherein, The side of the air outlet channel is provided with two wiring channels extending in the same direction.

5. The gas collection device of claim 1, wherein, The gas collection device also includes a negative pressure component. One end of the negative pressure component is connected to the air inlet of the gas collection device, and the other end of the negative pressure component is connected to the end of the air outlet pipe away from the charging connector. The negative pressure component is used to drive the gas around the gas collection device into the gas collection device for purification.

6. The gas collection device of claim 5, wherein, The negative pressure component includes: The body is used to mount the motor, pump wheel, and filter components; The motor is disposed within the housing; A pump wheel is disposed within the machine body and is connected to the motor; A filter element is disposed within the machine body and is arranged around the outside of the motor; The motor drives the pump wheel to rotate, so as to transport the gas outside the gas collection device from the air inlet to the filter element.

7. The gas collection device of claim 6, wherein, The body includes: A first cavity is connected to the air inlet, and the pump wheel is provided inside the first cavity; The second cavity is located on the side of the first cavity away from the air inlet end, and the motor is installed inside the second cavity; The processing chamber is an annular cavity surrounding the second cavity, and the processing chamber is in airflow communication with the first cavity. The filter element is disposed inside the processing chamber.

8. The gas collection device of claim 6, wherein, The machine body also includes a first sealing kit, which is fitted onto the connection between the air outlet pipe and the negative pressure component.

9. A gas collection device according to claim 7, wherein The machine body also includes an upper body, a lower body, and a second sealing kit. The first cavity is formed in the upper body. The upper body and the lower body are connected to form the second cavity and the processing cavity. The second sealing kit is fitted onto the connection between the upper body and the lower body.

10. The gas collection device of claim 9, wherein, A radial air outlet is formed in the lower body; The end of the air outlet pipe near the lower body is provided with a threaded connection pipe head, which is threaded to the lower body. The threaded connection pipe head is provided with an air outlet grille corresponding to the radial air outlet hole.

Images