Height-adjustable gas collecting hood for waste gas recovery

Abstract

The utility model relates to a height-adjustable gas collecting hood for waste gas recovery, which comprises a moving table and a lifting table, self-locking universal wheels are arranged at four corners of the bottom of the moving table, the lifting table is arranged above the moving table, a lifting component is connected between the moving table and the lifting table, a rotating seat is arranged at the top of the lifting table, and a rotating cylinder is rotatably connected onto the rotating seat. An air inlet is formed in the circumferential side wall of the rotating cylinder, an air collecting hood is arranged on the air inlet, a motor A connected with the rotating cylinder is arranged on one side of the rotating base, an exhaust port communicated with the rotating cylinder is formed in the other side of the rotating base, a filter screen is arranged on the exhaust port, and an upper butt joint is arranged at the bottom of the lifting table and communicated with the exhaust port through an exhaust pipe. A lower butt joint is arranged at the top of the movable table and communicated with the upper butt joint through a telescopic gas conveying pipe A. An outlet of the lower butt joint is connected with a gas extracting pump for extracting gas outwards, and an outlet of the gas extracting pump is connected with a telescopic gas conveying pipe B. The waste gas collecting device has the advantages of flexibility in adjustment, good waste gas collecting effect and convenience in cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a height-adjustable gas collecting hood for waste gas recovery. Background Art

[0002] Waste gas refers to toxic and harmful gases discharged by humans in the process of production and life, which seriously pollute the environment and affect human health. Usually, a gas collection hood is set at the place where the waste gas is generated, and the gas collection hood is used to collect it nearby.

[0003] The structure and position of the traditional gas collecting hood are relatively fixed, that is, it is difficult to adjust the height and direction of the gas collecting hood and to transfer the deployment location of the gas collecting hood. When the height and location of the exhaust gas generation point change, it is difficult to make targeted adjustments to the gas collecting hood, which affects the exhaust gas removal effect. In addition, the exhaust gas contains a certain amount of solid impurities. When the solid impurities enter the long and complex gas transmission pipeline with the collected exhaust gas, it takes a lot of work to clean up the solid impurities afterwards. Utility Model Content

[0004] The utility model aims to provide a height-adjustable gas collecting hood for waste gas recovery, which has the advantages of flexible adjustment, good waste gas collecting effect and convenient cleaning.

[0005] The technical solution of the utility model is as follows:

[0006] A height-adjustable gas collecting hood for waste gas recovery comprises a moving platform and a lifting platform, wherein the four corners of the bottom of the moving platform are provided with self-locking universal wheels, a lifting platform is provided above the moving platform, a lifting assembly is connected between the moving platform and the lifting platform, and the lifting assembly can drive the lifting platform to move in a vertical direction, a rotating seat is provided on the top of the lifting platform, a rotating cylinder is provided on the rotating seat, the rotating cylinder is cylindrical in shape, the left and right ends of the rotating cylinder are respectively rotatably connected to the rotating seat, an air inlet is provided on the circumferential side wall of the rotating cylinder, and a gas collecting hood is provided on the air inlet A motor A whose driving rod is coaxially connected to the rotating cylinder is provided on one side of the rotating seat, and an exhaust port connected to the rotating cylinder is provided on the other side, a filter screen is provided on the exhaust port, an upper docking joint is provided at the bottom of the lifting platform, the inlet of the upper docking joint is connected with the exhaust port through an exhaust pipe, a lower docking joint is provided on the top of the moving platform, the inlet of the lower docking joint is connected with the outlet of the upper docking joint through a telescopic air pipe A, the outlet of the lower docking joint is connected to an air pump for extracting air outwards, and the outlet of the air pump is connected to a telescopic air pipe B leading to the subsequent recovery place of the exhaust gas.

[0007] Preferably, the lifting assembly includes a motor B, a fixed seat, a rotating head, a threaded rod and a guide rod. A fixed seat is provided on the movable platform, and a rotating head is rotatably connected to the fixed seat. The upper end of the rotating head is coaxially connected to a threaded rod along the vertical direction, and the lower end of the rotating head is coaxially connected to the driving rod of the motor B. A threaded through hole corresponding to the threaded rod is provided on the lifting platform, and the threaded rod is threadedly connected to the lifting platform via the threaded through hole. A guide rod along the vertical direction is provided on the movable platform, and a guide through hole corresponding to the guide rod is provided on the lifting platform, and the guide rod is slidably connected to the lifting platform via the guide through hole.

[0008] Preferably, the left and right ends of the rotating seat are each provided with an annular groove on the inner surface, and the left and right ends of the rotating cylinder are respectively placed in the adjacent annular grooves, and the left and right ends of the rotating cylinder are rotatably connected with the rotating seat via the annular grooves. A connecting plate is provided on the side close to the motor A inside the rotating cylinder, and the connecting plate is located on the central axis of the rotating cylinder. A connecting rod is provided between the connecting plate and the inner wall of the rotating cylinder, and the connecting plate is connected to the driving rod of the motor A.

[0009] Preferably, the telescopic gas transmission pipe A is provided with a mounting head at both ends thereof, and the mounting head is detachably connected to the outlet of the upper butt joint or the inlet of the lower butt joint via connecting bolts.

[0010] Preferably, the left and right sides of the rotating seat are respectively provided with limit plates extending toward the middle at the upper and lower ends. When the air collecting hood is rotated to the maximum elevation angle, the limit plate located at the upper end abuts against the air collecting hood. When the air collecting hood is rotated to the horizontal direction, the limit plate located at the lower end abuts against the air collecting hood.

[0011] Preferably, a counterweight is provided on the movable platform.

[0012] Preferably, a filter screen is provided at the inner end of the outlet of the lower docking joint, a waste outlet leading to the inner cavity is provided on the lower docking joint, and a sealing plate is detachably connected to the waste outlet.

[0013] The utility model has the following beneficial technical effects:

[0014] 1. The air collecting hood can adjust its own height and direction, and move flexibly, so that the air collecting hood can be close to the exhaust gas generating places at different locations and heights, and the exhaust gas collecting effect of the air collecting hood is good; the height of the air collecting hood on the lifting platform is adjusted by changing the height of the lifting platform through the lifting assembly, and the direction of the air collecting hood connected to the air inlet of the rotating cylinder is adjusted by driving the rotating cylinder to rotate through the motor A. The mobile platform is given the ability to move flexibly through the unlocked self-locking universal wheels, so that the air collecting hood can be moved to a location close to the exhaust gas generating place. After the air collecting hood approaches the exhaust gas generating place, the vacuum pump is started, and the exhaust gas enters the rotating cylinder through the air inlet, and then passes through the exhaust pipe, the upper joint, the telescopic air pipe A and the lower joint in turn, and is finally sent to the subsequent exhaust gas recovery place along the telescopic air pipe B by the vacuum pump.

[0015] 2. A filter is provided on the exhaust port of the rotating seat to block the solid impurities in the exhaust gas in the rotating cylinder, and perform preliminary filtering treatment on the exhaust gas. Afterwards, the solid impurities retained in the rotating cylinder can be cleaned through the air inlet, which is convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model will be further described below in conjunction with the accompanying drawings.

[0017] Attached Figure 1 It is the front view of the utility model.

[0018] Attached Figure 2 It is the right view of the utility model.

[0019] Attached Figure 3 It is a cross-sectional view from the right side of the utility model.

[0020] Attached Figure 4 It is a top view of the utility model.

[0021] Attached Figure 5 It is a cross-sectional view from a top view of the rotating seat and the rotating cylinder.

[0022] In the figure: 1-mobile platform, 2-lifting platform, 3-self-locking universal wheel, 4-lifting assembly, 5-rotating seat, 6-rotating cylinder, 7-air inlet, 8-air collecting hood, 9-motor A, 10-exhaust port, 11-filter, 12-upper docking joint, 13-exhaust pipe, 14-lower docking joint, 15-telescopic air pipe A, 16-air pump, 17-telescopic air pipe B, 18-motor B, 19-fixed seat, 20-rotating head, 21-threaded rod, 22-guide rod, 23-annular groove, 24-connecting plate, 25-connecting rod, 26-mounting head, 27-limiting plate, 28-counterweight, 29-waste outlet, 30-sealing plate. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example:

[0025] like Figures 1 to 5 As shown, this embodiment provides a height-adjustable gas collecting hood for waste gas recovery, including a moving platform 1 and a lifting platform 2. Self-locking universal wheels 3 are provided at the four corners of the bottom of the moving platform 1. A lifting platform 2 is provided above the moving platform 1. A lifting assembly 4 is connected between the moving platform 1 and the lifting platform 2. The lifting assembly 4 can drive the lifting platform 2 to move in a vertical direction. A rotating seat 5 is provided on the top of the lifting platform 2. A rotating cylinder 6 is provided on the rotating seat 5. The shape of the rotating cylinder 6 is cylindrical. The left and right ends of the rotating cylinder 6 are respectively rotatably connected to the rotating seat 5. An air inlet 7 is provided on the circumferential side wall of the rotating cylinder 6. A gas collecting hood 8 is provided on the air inlet 7. The rotating seat A motor A9 whose driving rod is coaxially connected to the rotating cylinder 6 is provided on one side of 5, and an exhaust port 10 communicated with the rotating cylinder 6 is provided on the other side, a filter screen 11 is provided on the exhaust port 10, an upper docking joint 12 is provided at the bottom of the lifting platform 2, the inlet of the upper docking joint 12 is communicated with the exhaust port 10 through an exhaust pipe 13, a lower docking joint 14 is provided on the top of the moving platform 1, the inlet of the lower docking joint 14 is communicated with the outlet of the upper docking joint 12 through a telescopic air pipe A15, the outlet of the lower docking joint 14 is connected to an exhaust pump 16 for extracting air outwards, and the outlet of the exhaust pump 16 is connected to a telescopic air pipe B17 leading to a subsequent waste gas recovery site.

[0026] The air collecting hood 8 can adjust its own height and direction, and move flexibly, so that the air collecting hood 8 can be close to the exhaust gas generating places located at different locations and different heights, and the exhaust gas collecting hood 8 has a good exhaust gas collecting effect; the height of the air collecting hood 8 located on the lifting platform 2 is adjusted by changing the height of the lifting platform 2 through the lifting component 4, and the direction of the air collecting hood 8 connected to the air inlet 7 of the rotating cylinder 6 is adjusted by driving the rotating cylinder 6 to rotate through the motor A9, and the movable platform 1 is given the ability to move flexibly through the unlocked self-locking universal wheel 3, so that the air collecting hood 8 can be moved to a location close to the exhaust gas generating place. After the air collecting hood 8 approaches the exhaust gas generating place, the vacuum pump 16 is started, and the exhaust gas enters the rotating cylinder 6 through the air inlet 7, and then passes through the exhaust pipe 13, the upper docking joint 12, the telescopic air pipe A15 and the lower docking joint 14 in turn, and is finally sent to the subsequent exhaust gas recovery place by the vacuum pump 16 along the telescopic air pipe B17. A filter screen 11 is provided on the exhaust port 10 of the rotating seat 5 to block solid impurities in the exhaust gas in the rotating cylinder 6 and perform preliminary filtering treatment on the exhaust gas. Afterwards, the solid impurities retained in the rotating cylinder 6 can be cleaned through the air inlet 7, which is convenient for cleaning.

[0027] Furthermore, the lifting assembly 4 includes a motor B18, a fixed seat 19, a rotating head 20, a threaded rod 21 and a guide rod 22. A fixed seat 19 is provided on the movable platform 1, and a rotating head 20 is rotatably connected to the fixed seat 19. The upper end of the rotating head 20 is coaxially connected to a threaded rod 21 along the vertical direction, and the lower end of the rotating head 20 is coaxially connected to the driving rod of the motor B18. A threaded through hole corresponding to the threaded rod 21 is provided on the lifting platform 2, and the threaded rod 21 is threadedly connected to the lifting platform 2 via the threaded through hole. A guide rod 22 along the vertical direction is provided on the movable platform 1, and a guide through hole corresponding to the guide rod 22 is provided on the lifting platform 2, and the guide rod 22 is slidably connected to the lifting platform 2 via the guide through hole.

[0028] By using the guide rod 22 and the guide through hole in combination, the movable direction of the lifting platform 2 is limited to the vertical direction. When the motor B18 is started, the motor B18 drives the rotating head 20 to rotate, and the rotating rotating head 20 drives the connected threaded rod 21 to rotate. The rotating threaded rod 21 drives the lifting platform 2 threadedly connected thereto to move in the vertical direction, thereby achieving the purpose of adjusting the height of the gas collecting hood 8.

[0029] Furthermore, an annular groove 23 is respectively provided on the inner surface of the left and right ends of the rotating seat 5, and the left and right ends of the rotating cylinder 6 are respectively placed in the adjacent annular grooves 23. The left and right ends of the rotating cylinder 6 are rotatably connected with the rotating seat 5 through the annular grooves 23. A connecting plate 24 is provided on the side close to the motor A9 inside the rotating cylinder 6. The connecting plate 24 is located on the central axis of the rotating cylinder 6. A connecting rod 25 is provided between the connecting plate 24 and the inner wall of the rotating cylinder 6. The connecting plate 24 is connected to the driving rod of the motor A9.

[0030] When the motor A9 is started, the motor A9 drives the connecting plate 24 to rotate. The rotating connecting plate 24 drives the rotating cylinder 6 to rotate through the connecting rod 25. The air collecting hood 8 connected to the rotating cylinder 6 rotates accordingly, thereby achieving the purpose of adjusting the direction of the air collecting hood 8.

[0031] Furthermore, a mounting head 26 is respectively provided at both ends of the telescopic air delivery pipe A15, and the mounting head 26 is detachably connected to the outlet of the upper butt joint 12 or the inlet of the lower butt joint 14 through connecting bolts.

[0032] During subsequent maintenance, the mounting head 26 can be removed from the upper butt joint 12 and the lower butt joint 14 to facilitate separate cleaning of the telescopic air delivery pipe A15.

[0033] Furthermore, the left and right sides of the rotating seat 5 are respectively provided with a limit plate 27 extending toward the middle at the upper and lower ends. When the air collecting hood 8 rotates to the maximum elevation angle, the limit plate 27 located at the upper end abuts against the air collecting hood 8. When the air collecting hood 8 rotates to the horizontal direction, the limit plate 27 located at the lower end abuts against the air collecting hood 8.

[0034] The limit plates 27 at the upper and lower ends limit the rotation range of the air collecting hood 8 to prevent the air collecting hood 8 from rotating excessively and causing impurities in the rotating cylinder 6 to be poured out from the air inlet 7.

[0035] Furthermore, a counterweight 28 is provided on the moving platform 1 .

[0036] The counterweight block 28 lowers the overall center of gravity of the device, reduces the probability of the device tipping over, and improves safety.

[0037] Furthermore, a filter screen 11 is provided at the inner end of the outlet of the lower butt joint 14 , and a waste outlet 29 leading to the inner cavity is provided on the lower butt joint 14 , and a sealing plate 30 is detachably connected to the waste outlet 29 .

[0038] Specifically, the filter hole size of the filter screen 11 on the lower joint 14 should be smaller than the filter hole size of the filter screen 11 on the exhaust port 10. The exhaust gas is filtered twice at the lower joint 14 through the filter screen 11 to further reduce the content of solid impurities in the exhaust gas. When cleaning afterwards, the staff can remove the sealing plate 30 and remove the solid impurities accumulated in the lower joint 14 from the waste outlet 29, which is convenient for cleaning.

[0039] The working principle and use process of this utility model:

[0040] According to the location of the exhaust gas generation point, the staff first unlocks the self-locking universal wheel 3 and pushes the mobile platform 1 to move to a location close to the take-off location, then operates the lifting assembly 4 to adjust the gas collecting hood 8 to a height close to the exhaust gas generation point, and then operates the motor A9 to rotate the gas collecting hood 8 to face the exhaust gas generation point, and finally starts the vacuum pump 16 to send the exhaust gas to the corresponding exhaust gas recovery point.

[0041] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A height-adjustable gas collecting hood for waste gas recovery, characterized in that: The utility model comprises a movable platform and a lifting platform, wherein self-locking universal wheels are arranged at the four corners of the bottom of the movable platform, a lifting platform is arranged above the movable platform, a lifting assembly is connected between the movable platform and the lifting platform, and the lifting assembly can drive the lifting platform to move in a vertical direction, a rotating seat is arranged at the top of the lifting platform, a rotating cylinder is arranged on the rotating seat, the rotating cylinder is in the shape of a cylinder, the left and right ends of the rotating cylinder are respectively rotatably connected with the rotating seat, an air inlet is arranged on the circumferential side wall of the rotating cylinder, an air collecting hood is arranged on the air inlet, a driving rod is arranged on one side of the rotating seat, and a motor A coaxially connected with the rotating cylinder is arranged on the other side, an exhaust port communicated with the rotating cylinder is arranged, a filter screen is arranged on the exhaust port, an upper butt joint is arranged at the bottom of the lifting platform, the inlet of the upper butt joint is connected with the exhaust port through an exhaust pipe, a lower butt joint is arranged at the top of the movable platform, the inlet of the lower butt joint is connected with the outlet of the upper butt joint through a telescopic air supply pipe A, the outlet of the lower butt joint is connected with an air pump for exhausting air outwards, and the outlet of the air pump is connected with a telescopic air supply pipe B leading to the subsequent recovery place of the exhaust gas.

2. The height-adjustable gas collecting hood for waste gas recovery according to claim 1, characterized in that: The lifting assembly includes a motor B, a fixed seat, a rotating head, a threaded rod and a guide rod. A fixed seat is provided on the movable platform, and a rotating head is rotatably connected to the fixed seat. The upper end of the rotating head is coaxially connected to a threaded rod along the vertical direction, and the lower end of the rotating head is coaxially connected to the driving rod of the motor B. A threaded through hole corresponding to the threaded rod is provided on the lifting platform, and the threaded rod is threadedly connected to the lifting platform via the threaded through hole. A guide rod along the vertical direction is provided on the movable platform, and a guide through hole corresponding to the guide rod is provided on the lifting platform, and the guide rod is slidably connected to the lifting platform via the guide through hole.

3. The height-adjustable gas collecting hood for waste gas recovery according to claim 1, characterized in that: The left and right ends of the rotating seat are each provided with an annular groove on the inner surface, and the left and right ends of the rotating cylinder are respectively placed in the adjacent annular grooves. The left and right ends of the rotating cylinder are rotatably connected with the rotating seat via the annular grooves. A connecting plate is provided on the side close to the motor A inside the rotating cylinder. The connecting plate is located on the central axis of the rotating cylinder. A connecting rod is provided between the connecting plate and the inner wall of the rotating cylinder, and the connecting plate is connected to the driving rod of the motor A.

4. The height-adjustable gas collecting hood for waste gas recovery according to claim 1, characterized in that: The telescopic gas delivery pipe A is provided with mounting heads at both ends thereof, and the mounting heads are detachably connected to the outlet of the upper butt joint or the inlet of the lower butt joint via connecting bolts.

5. The height-adjustable gas collecting hood for waste gas recovery according to claim 1, characterized in that: The left and right sides of the rotating seat are respectively provided with limit plates extending toward the middle at the upper and lower ends. When the air collecting hood is rotated to the maximum elevation angle, the limit plate located at the upper end abuts against the air collecting hood. When the air collecting hood is rotated to the horizontal direction, the limit plate located at the lower end abuts against the air collecting hood.

6. The height-adjustable gas collecting hood for waste gas recovery according to claim 1, characterized in that: A counterweight is arranged on the moving platform.

7. The height-adjustable gas collecting hood for waste gas recovery according to claim 1, characterized in that: A filter screen is arranged at the inner end of the outlet of the lower butt joint, and a waste outlet leading to the inner cavity is arranged on the lower butt joint, and a sealing plate is detachably connected to the waste outlet.

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