Movable sealing gas-collecting hood

Abstract

The utility model discloses a movable sealing gas-collecting hood, and relates to the technical field of gas-collecting hoods, the movable sealing gas-collecting hood comprises seven vertical rods, the outer surfaces of the seven vertical rods are jointly provided with a connecting assembly, the upper inner wall of one of the vertical rods is fixedly connected with a connecting plate, one side of the bottom end of the connecting plate is fixedly connected with a mounting frame, and the mounting frame is fixedly connected with a connecting rod. One end of the exhaust pipe penetrates through the inner wall of one side of the mounting frame and is fixedly connected with a gas-collecting hood body, and a filtering assembly matched with the gas-collecting hood body for use is arranged at the bottom end of the mounting frame. Through the filtering assembly, gas is conveniently filtered at the gas inlet in advance when the gas-collecting hood is used for collecting gas, the gas-collecting hood is prevented from being blocked by impurities, and the service life of the gas-collecting hood is prolonged. The filter screen is convenient to replace, the sealing outer cover matched with the gas collecting hood for use can be conveniently contracted through the connecting assembly, the gas collecting space of the gas collecting hood is better controlled, and the gas collecting efficiency of the gas collecting hood is improved.

Description

Technical Field

[0001] This application relates to the field of gas collection hood technology, and in particular to a mobile sealed gas collection hood. Background Technology

[0002] A fume hood is a device used in flue gas purification systems to collect pollutants from sources. It directs dust and gaseous pollutants into the purification system while preventing their diffusion into the production workshop and atmosphere, thus preventing pollution. Its performance directly impacts the technical and economic indicators of the purification system. Due to differences in the structure of pollution source equipment and production processes, fume hoods come in various forms. Based on their relative position to the pollution source and their applicable scope, fume hoods can be broadly categorized into enclosed hoods, exhaust cabinets, external fume hoods, and receiving fume hoods.

[0003] Regarding the aforementioned technologies, the inventors believe that the air inlets of existing gas collection hoods are generally open, and there is generally no structure for pre-filtering the gas at the air inlet. Since the gas may contain some impurities, these impurities will be drawn into the gas collection hood over a long period of time, causing blockage and affecting the normal use of the gas collection hood. Furthermore, the external sealing covers used with existing gas collection hoods are generally of a fixed size. Since the gas collection range of the gas collection hood varies during gas collection, a fixed-size sealing cover is not conducive to the rapid collection of gas by the gas collection hood, thus reducing the gas collection efficiency. Utility Model Content

[0004] The purpose of this application is to provide a movable sealed gas collection hood to improve the problems of gas collection hood blockage caused by impurities being sucked into it for a long time, and the fixed-size sealing outer cover not being conducive to the rapid collection of gas by the gas collection hood.

[0005] The mobile sealed gas collection hood provided in this application adopts the following technical solution:

[0006] A mobile sealed gas collection hood includes seven uprights. A connecting assembly is shared on the outer surface of each of the seven uprights. A sealing cover is fixedly fitted onto the outer surface of two uprights. A connecting plate is fixedly connected to the upper inner wall of one of the uprights. A mounting bracket is fixedly connected to one side of the bottom end of the connecting plate. A gas processor body is fixedly connected to the lower inner wall of the mounting bracket. A connecting pipe is fixedly connected to one end of the gas processor body. An air suction pump is fixedly connected to the lower inner wall of the mounting bracket, with one end of the air suction pump fixedly connected to one end of the connecting pipe. An air extraction pipe is fixedly connected to the end of the air suction pump facing away from the connecting pipe, and one end of the air extraction pipe penetrates one side of the inner wall of the mounting bracket and is fixedly connected to the gas collection hood body. A filter assembly for use with the gas collection hood body is provided at the bottom of the mounting bracket.

[0007] By adopting the above technical solution, the connecting components facilitate the shrinking of the sealing cover to provide better space for gas collection. The suction pump, in conjunction with the connecting pipe and the extraction pipe, and the gas collection cover body, draws the exhaust gas into the gas processor for processing. The filter components facilitate the pre-filtration of the gas at the air inlet of the gas collection cover body during gas collection.

[0008] Optionally, the filter assembly includes a connecting rod, the top end of which is fixedly connected to the bottom end of the mounting bracket. A first through groove and a second through groove are respectively formed on the lower part of one end of the connecting rod. A mounting plate is fixedly connected to the lower inner wall of the first through groove. A motor is fixedly connected to the top end of the mounting plate, and a worm gear is fixedly connected to the output end of the motor. A worm wheel is meshed with the outer surface of the worm gear. A vertical rod is rotatably connected to the upper inner wall of the first through groove, and the worm wheel is fixedly sleeved on the outer surface of the vertical rod. The bottom end of the vertical rod penetrates the lower inner wall of the first through groove and is fixedly connected to a screw. A slider is threaded onto the outer surface of the screw, and a mounting sleeve is fixedly connected to one end of the slider. Filter screens are slidably engaged on both inner walls of the mounting sleeve.

[0009] By adopting the above technical solution, the filter screen is pre-installed in the mounting sleeve. Then, the motor is started, and the motor output drives the worm gear transmission. The worm gear transmission, in conjunction with the worm wheel, rotates the vertical rod, which in turn rotates the screw. The screw rotates the slider, which moves it in the second through slot. When the slider moves upward, it moves the mounting sleeve upward, so that the filter screen installed in the mounting sleeve is in contact with the bottom of the gas collection hood body. At the same time, the bottom of the mounting sleeve is hollow, which allows the gas to be filtered as it passes through the gas collection hood body, preventing the gas collection hood from being blocked by impurities after long-term use, thereby improving the practicality of the gas collection hood structure.

[0010] Optionally, the connecting assembly includes a connecting seat, and multiple connecting seats are provided. One end of each of the multiple connecting seats is fixedly connected to the outer surface of the seven uprights. Each pair of corresponding connecting seats is hinged to a first long rod and a second long rod via a pivot. One end of the corresponding first long rod and second long rod is hinged via a pivot.

[0011] By adopting the above technical solution, the spacing between two adjacent uprights is adjusted by using the corresponding first and second long rods in combination, thereby changing the internal space of the sealing cover, which facilitates better gas collection operation of the gas collection cover body and improves the gas collection efficiency of the gas collection cover structure.

[0012] Optionally, one end of the sealing cover is rotatably connected to a curtain, and the curtain is made of a soft material. The sealing cover is made of a foldable material, and both sides of the top of the seven uprights are hinged with brake wheels via pivots.

[0013] By adopting the above technical solution, the baffle curtain can easily block the gaps on the sealing cover, so that the sealing cover can better cover the gas to be collected. The foldable sealing cover can be easily retracted, and the stop brake wheel can facilitate the movement of the gas collection cover structure.

[0014] Optionally, an exhaust pipe is provided at the upper part of one end of the gas processor body.

[0015] By adopting the above technical solution, the exhaust pipe can easily discharge the collected and treated gas.

[0016] Optionally, the top end of the gas collecting hood body is fixedly connected to the bottom end of the connecting plate, and the gas collecting hood body is cone-shaped.

[0017] By adopting the above technical solution, the connecting plate facilitates the positioning of the gas collection hood body, and the cone shape makes it easier for the gas collection hood body to collect gas.

[0018] Optionally, the bottom end of the screw is rotatably connected to the lower inner wall of the second through groove, and the two ends of the slider are slidably connected to the inner walls of the two sides of the second through groove, respectively.

[0019] By adopting the above technical solution, the second through groove serves to position the screw when it rotates and to guide and limit the movement of the slider.

[0020] Optionally, the corresponding first and second long rods are arranged in a "V" shape.

[0021] By adopting the above technical solution, the first and second long rods are V-shaped to facilitate the contraction displacement between the two uprights, so as to better contract the sealing cover.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up a filter component, this utility model facilitates the pre-filtration of gas at the air inlet when the gas collection hood is collecting gas, thus preventing impurities from clogging the gas collection hood. At the same time, the filter screen here is also easy to replace, thereby improving the performance of the gas collection hood structure.

[0024] 2. By setting up a connecting component, this utility model facilitates the retraction of the sealing cover used with the gas collection hood, so as to better control the gas collection space of the gas collection hood and improve the gas collection efficiency of the gas collection hood. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a partial structural diagram of the present utility model.

[0027] Figure 3 This is a partial structural diagram of the present utility model.

[0028] Figure 4 This is a schematic diagram of the exploded structure of the filter assembly of this utility model.

[0029] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0030] Figure 6 This is a schematic diagram of the connecting component of this utility model.

[0031] In the diagram, 1. Upright pole; 2. Filter assembly; 21. Filter screen; 22. Mounting sleeve; 23. Connecting rod; 24. Worm gear; 25. Mounting plate; 26. Slider; 27. Screw; 28. Second through slot; 29. ​​Motor; 201. Worm gear; 202. First through slot; 203. Vertical rod; 3. Connecting assembly; 31. Connecting seat; 32. First long rod; 33. Second long rod; 4. Curtain; 5. Stop brake wheel; 6. Sealing cover; 7. Gas collection hood body; 8. Exhaust pipe; 9. Gas processor body; 10. Mounting bracket; 11. Connecting pipe; 12. Suction pump; 13. Extraction pipe; 14. Connecting plate. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0033] Example

[0034] A mobile sealed gas collection hood includes seven uprights 1, fourteen brake wheels 5, a connecting assembly 3, a sealing outer cover 6, a curtain 4, a connecting plate 14, a mounting bracket 10, a gas processor body 9, an air intake pump 12, a gas collection hood body 7, and a filter assembly 2. The seven uprights 1 are connected by the connecting assembly 3. The fourteen brake wheels 5 are rotatably connected to the bottom ends of the seven uprights 1 via rotating shafts. The brake wheels 5 facilitate the movement of the gas collection hood structure. The sealing outer cover 6 is fixedly sleeved on the outer surface of two of the uprights 1, and the sealing outer cover 6 is... The soft, foldable material allows the sealing cover 6 to be easily retracted via the connecting component 3, facilitating control of the gas collection space of the gas collection hood body 7. The curtain 4 is connected to one end of the sealing cover 6 via a hinge, making it easier for the gas collection hood body 7 to collect gas. The top of the connecting plate 14 is fixedly connected to the upper inner wall of one of the uprights 1, serving as a connector. The top of the gas collection hood body 7 is also fixedly connected to the bottom of the connecting plate 14, facilitating the positioning of the gas collection hood body 7 by the connecting plate 14.

[0035] The top of the mounting bracket 10 is fixedly connected to the bottom of the connecting plate 14. The bottom of the suction pump 12 and the gas processor body 9 are both fixedly connected to the lower inner wall of the mounting bracket 10, so that the mounting bracket 10 can support the suction pump 12 and the gas processor body 9. The two ends of the suction pump 12 are respectively fixedly connected to the suction pipe 13 and the connecting pipe 11. One end of the suction pipe 13 passes through one side inner wall of the mounting bracket 10 and passes through the upper part of one end of the gas collection hood body 7. One end of the connecting pipe 11 is fixedly connected to one end of the gas processor body 9. The suction pump 12, the suction pipe 13 and the connecting pipe 11 work together to facilitate the gas passing through the gas collection hood body 7 to be drawn into the gas processor body 9 for processing. An exhaust pipe 8 is provided at the upper part of one end of the gas processor body 9, which facilitates the discharge of the processed gas.

[0036] The filter assembly 2 includes a connecting rod 23, a first through groove 202, a second through groove 28, a mounting plate 25, a worm gear 24, a worm 201, a vertical rod 203, a screw 27, a slider 26, a mounting sleeve 22, and a filter screen 21. The top end of the connecting rod 23 is fixedly connected to one side of the bottom end of the mounting bracket 10. The first through groove 202 and the second through groove 28 are respectively opened at the lower part of one end of the connecting rod 23. The bottom end of the mounting plate 25 is fixedly connected to the lower inner wall of the first through groove 202. A motor 29 is fixedly connected to the top end of the mounting plate 25 to facilitate the mounting plate 25 to be supported. The motor 29 is supported, and its output end is fixedly connected to the middle of one end of the worm 201, so that the output end of the motor 29 can drive the worm 201 to transmit power. The outer surface of the worm 201 is meshed with the outer surface of the worm wheel 24, so that the worm 201 can drive the worm wheel 24 to rotate. The worm wheel 24 is fixedly sleeved on the outer surface of the vertical rod 203, and the top end of the vertical rod 203 is rotatably connected to the upper inner wall of the first through groove 202, so that the rotation of the worm wheel 24 can drive the vertical rod 203 to rotate. The first through groove 202 plays a role in positioning the vertical rod 203 when it rotates.

[0037] The bottom end of the screw 27 is rotatably connected to the lower inner wall of the second through groove 28, and the bottom end of the vertical rod 203 passes through the lower inner wall of the first through groove 202 and is fixedly connected to the top end of the screw 27, so that the vertical rod 203 can rotate to drive the screw 27 to rotate. The two ends of the slider 26 are slidably connected to the inner walls of the two sides of the second through groove 28, and the slider 26 is threaded onto the outer surface of the screw 27, so that the screw 27 can rotate to drive the slider 26 to move. One end of the slider 26 is fixedly connected to the lower part of one end of the mounting sleeve 22, and one end of the mounting sleeve 22 is slidably connected to the lower part of one end of the connecting rod 23, so that the slider 26 can move to drive the mounting sleeve 22 to move along the direction of the connecting rod 23. The filter screen 21 is movably snapped into the inside of the mounting sleeve 22, so that the mounting sleeve 22 can move to drive the filter screen 21 to fit against the bottom end of the gas collecting hood body 7, so that the gas collecting hood body 7 can filter the gas through the filter screen 21 when collecting gas, reducing the blockage of the gas collecting hood body 7.

[0038] The connecting assembly 3 includes multiple connecting seats 31, multiple first long rods 32 and second long rods 33. The multiple connecting seats 31 are fixedly connected to the outer surfaces of the seven uprights 1 respectively. One end of each of the multiple first long rods 32 and second long rods 33 is hinged to the inner wall of the corresponding connecting seat 31 through a pivot. The corresponding first long rods 32 and second long rods 33 are hinged through a pivot. The corresponding first long rods 32 and second long rods 33 are in a "V" shape. The distance between two adjacent uprights 1 is achieved by changing the included angle between the first long rods 32 and second long rods 33, which facilitates the change of the space covered by the sealing cover 6 so that the gas collection cover body 7 can better collect gas.

[0039] Working principle: First, the air collection hood structure is moved to a suitable position by the stop brake wheel 5, and then the two stop brake wheels 5 at one end are stopped.

[0040] Then, by connecting component 3, one of the unpositioned uprights 1 is pulled. The first long rod 32 and the second long rod 33 are used in conjunction with the corresponding connecting seat 31 to change the angle between the first long rod 32 and the second long rod 33, thereby adjusting the distance between the two adjacent uprights 1. This allows the space covered by the sealing cover 6 to be adjusted appropriately, and then all the brake wheels 5 are stopped.

[0041] Next, cover the curtain 4 to make the sealing cover 6 better seal the space that needs to collect air.

[0042] Then, the filter screen 21 is secured in the mounting sleeve 22 via the filter assembly 2. The motor 29 is then started, and the output end of the motor 29 drives the worm gear 201. The worm gear 201, in conjunction with the worm wheel 24, causes the vertical rod 203 to rotate. The first through groove 202 serves to position the vertical rod 203 during rotation. The rotation of the vertical rod 203 causes the screw 27 to rotate, which in turn works with the slider 26 to move the slider 26 in the second through groove 28. The movement of the slider 26 causes the filter screen 21 in the mounting sleeve 22 to move to a position that fits against the bottom of the air collection hood body 7.

[0043] Next, the suction pump 12 is started. The suction pump 12 works with the gas collection hood body 7 through the suction pipe 13 to draw in gas. When the gas passes through the inlet of the gas collection hood body 7, it is filtered by the filter screen 21. The drawn gas is transported to the gas processor body 9 through the connecting pipe 11 for processing. The processed gas is discharged through the exhaust pipe 8, thereby optimizing the use effect of the gas collection hood structure.

[0044] The embodiments described in this specific implementation are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mobile sealed gas collection hood, comprising a support pole (1), characterized in that: Seven uprights (1) are provided, and a connecting assembly (3) is provided on the outer surface of all seven uprights (1). A sealing cover (6) is fixedly fitted onto the outer surface of two uprights (1). A connecting plate (14) is fixedly connected to the upper inner wall of one of the uprights (1). A mounting bracket (10) is fixedly connected to one side of the bottom end of the connecting plate (14). A gas processor body (9) is fixedly connected to the lower inner wall of the mounting bracket (10). One end of the gas processor body (9) is fixedly connected to... There is a connecting pipe (11), and an air suction pump (12) is fixedly connected to the lower inner wall of the mounting frame (10). One end of the air suction pump (12) is fixedly connected to one end of the connecting pipe (11). An air extraction pipe (13) is fixedly connected to the end of the air suction pump (12) facing away from the connecting pipe (11). One end of the air extraction pipe (13) passes through one side inner wall of the mounting frame (10) and is fixedly connected to the air collection hood body (7). A filter assembly (2) for use with the air collection hood body (7) is provided at the bottom of the mounting frame (10).

2. The movable sealed gas collection hood according to claim 1, characterized in that: The filter assembly (2) includes a connecting rod (23), the top end of which is fixedly connected to the bottom end of the mounting bracket (10). A first through groove (202) and a second through groove (28) are respectively provided on the lower part of one end of the connecting rod (23). A mounting plate (25) is fixedly connected to the lower inner wall of the first through groove (202). A motor (29) is fixedly connected to the top end of the mounting plate (25), and a worm gear (201) is fixedly connected to the output end of the motor (29). The outer surface of the worm gear (201) meshes with... A worm gear (24) is connected to the upper inner wall of the first through groove (202), and a vertical rod (203) is rotatably connected to it. The worm gear (24) is fixedly sleeved on the outer surface of the vertical rod (203). The bottom end of the vertical rod (203) passes through the lower inner wall of the first through groove (202) and is fixedly connected to a screw (27). The outer surface of the screw (27) is threaded with a slider (26), and one end of the slider (26) is fixedly connected to an mounting sleeve (22). The inner walls on both sides of the mounting sleeve (22) are slidably engaged with a filter screen (21).

3. A movable sealed gas collection hood according to claim 1, characterized in that: The connecting component (3) includes a connecting seat (31), and multiple connecting seats (31) are provided. One end of each of the multiple connecting seats (31) is fixedly connected to the outer surface of the seven uprights (1). Each of the corresponding two connecting seats (31) is hinged to a first long rod (32) and a second long rod (33) through a pivot. One end of the corresponding first long rod (32) and second long rod (33) is hinged through a pivot.

4. A movable sealed gas collection hood according to claim 1, characterized in that: One end of the sealing cover (6) is rotatably connected to a curtain (4), and the curtain (4) is made of soft material. The sealing cover (6) is made of foldable material. Both sides of the top of the seven uprights (1) are hinged with brake wheels (5) through a pivot.

5. A movable sealed gas collection hood according to claim 1, characterized in that: An exhaust pipe (8) is provided on the upper part of one end of the gas processor body (9).

6. A movable sealed gas collection hood according to claim 1, characterized in that: The top end of the gas collection hood body (7) is fixedly connected to the bottom end of the connecting plate (14), and the gas collection hood body (7) is cone-shaped.

7. A movable sealed gas collection hood according to claim 2, characterized in that: The bottom end of the screw (27) is rotatably connected to the lower inner wall of the second through groove (28), and the two ends of the slider (26) are slidably connected to the inner walls of the two sides of the second through groove (28).

8. A movable sealed gas collection hood according to claim 3, characterized in that: The corresponding first long rod (32) and second long rod (33) are arranged in a "V" shape.

Images