Waste gas collecting device

Abstract

The utility model is applicable to the technical field of waste gas treatment, and provides a waste gas collecting device, which comprises an exhaust hood, a connecting pipe is inserted in the middle of the top of the exhaust hood, a filter screen is fixedly mounted on opposite sides of an inner cavity of the exhaust hood close to the bottom, and a cleaning component is arranged at the bottom of the filter screen. A rectangular block at the other side, close to the middle position, of the inner cavity of the exhaust hood can enable a reciprocating screw rod fixed at the shaft end of a power output shaft of a driving motor to rotate through rotation of the power output shaft of the driving motor, and a cleaning brush can reciprocate left and right under limitation of a screw rod nut, a limiting block and a limiting rod to clean the bottom surface of the filter screen; and by arranging a first magnet and a second magnet, it is convenient for workers to disassemble and replace the activated carbon net subsequently, and the waste gas filtering effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and in particular relates to a waste gas collecting device. Background Art

[0002] At present, in order to prevent the continuous deterioration of the production and living environment of domestic residents, strengthen the protection of green mountains, green waters, blue sky and sea, and maintain the beautiful production and living environment of residents, the country has increased its environmental protection inspections, especially for production-oriented enterprises, and put forward strict environmental protection production requirements. Waste gas refers to toxic and harmful gases discharged by humans in the process of production and life, especially the waste gas emitted by factory production types, which has a strong odor, seriously pollutes the environment and affects human health. Therefore, all manufacturers need to be equipped with waste gas collection devices with treatment functions.

[0003] When treating exhaust gas, the exhaust gas is drawn into the collection device by using an exhaust fan. In the process of exhaust gas drawing, external dust is also drawn in. In order to prevent the entry of dust, a filter is usually set in the exhaust hood. When the filter is used for a long time, it is easy to be blocked by dust or impurities, which affects the suction force of the exhaust fan and reduces the exhaust gas collection effect of the device. Utility Model Content

[0004] The utility model provides an exhaust gas collection device, which aims to solve the problem that a filter screen is usually set in the exhaust hood to prevent dust from entering, and the filter screen is easily blocked by dust or impurities when used for a long time, thereby affecting the suction force of the exhaust fan and reducing the exhaust gas collection effect of the device.

[0005] The utility model is implemented as follows: an exhaust gas collection device comprises an exhaust hood, a connecting pipe is plugged in the middle position of the top of the exhaust hood, a filter screen is fixedly installed near the bottom of the opposite side of the inner cavity of the exhaust hood, a cleaning component is arranged at the bottom of the filter screen, a rectangular block is arranged near the middle position of the other side of the inner cavity of the exhaust hood, a support plate is fixedly installed near the top of the opposite side of the inner cavity of the exhaust hood, an exhaust fan is fixedly installed at the middle position of the bottom of the support plate, and a disassembly component is arranged at the bottom of the support plate;

[0006] The cleaning assembly includes a support block fixedly installed at the other side of the inner cavity of the exhaust hood near the middle position and an air flow sensor fixedly installed at the bottom of the support block near one side, a controller is fixedly installed at the top of the support block near the middle position, a drive motor is arranged at one side of the exhaust hood near the middle position, a reciprocating screw is fixedly installed at the end of the power output shaft of the drive motor, the end of the reciprocating screw movably passes through the inner cavity of the adjacent exhaust hood, and is rotatably connected to the other side of the inner cavity of the exhaust hood, a screw nut is movably connected to the outer periphery of the reciprocating screw near the other end, a cleaning brush is fixedly installed on the top of the screw nut, and the cleaning brush and the filter are arranged to fit each other.

[0007] Preferably, a mounting plate is fixedly mounted on the top of the driving motor, and the other side of the mounting plate is fixedly connected to the exhaust hood.

[0008] Preferably, a limit block is fixedly installed on the bottom of the screw nut near the front and rear sides, a through hole is opened on one side of the limit block, and a limit rod is set through the inner cavity of the through hole, and the two ends of the limit rod are respectively fixedly connected to the inner cavity side walls of the exhaust hood.

[0009] Preferably, the air flow sensor is electrically connected to the controller, and the controller is electrically connected to the drive motor.

[0010] Preferably, the disassembly assembly includes an activated carbon net located on the top of the rectangular block and a connecting plate fixedly installed on the activated carbon net, a handle is fixedly installed on one side of the connecting plate, a rectangular opening is opened near the middle position on one side of the exhaust hood, and one side of the activated carbon net passes through the inner cavity of the rectangular opening, a load-bearing plate is fixedly installed near the middle position on one side of the exhaust hood, trapezoidal grooves are opened on the top of the load-bearing plate near the front and rear sides, the inner cavity of the trapezoidal grooves are slidably connected with trapezoidal blocks, and the tops of the trapezoidal blocks are fixedly connected to the connecting plate.

[0011] Preferably, a sealing gasket is fixedly installed on the other side of the connecting plate, a first magnet is fixedly installed on the top of the connecting plate, a groove is opened on one side of the exhaust hood near the middle position, and a second magnet is fixedly installed on one side of the inner cavity of the groove, and the first magnet and the second magnet are magnetically attracted to each other.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] By driving the power output shaft of the driving motor to rotate, the reciprocating screw fixed on the shaft end of the power output shaft of the driving motor can be rotated. Under the limitation of the screw nut, the limit block and the limit rod, the cleaning brush can be moved back and forth left and right to clean the bottom surface of the filter, thereby avoiding affecting the suction force of the exhaust fan, thereby improving the efficiency of exhaust gas suction. The setting of the first magnet and the second magnet makes it convenient for the staff to disassemble and replace the activated carbon net later, thereby improving the effect of exhaust gas filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0017] Figure 4It is a partial cross-sectional three-dimensional structure explosion diagram of the utility model;

[0018] Figure 5 The utility model Figure 4 Enlarged view of point A in the middle.

[0019] In the figure: 1. exhaust hood; 2. connecting pipe; 3. filter; 4. rectangular block; 5. support plate; 6. exhaust fan; 7. cleaning component; 71. support block; 72. air flow sensor; 73. controller; 74. drive motor; 741. mounting plate; 75. reciprocating screw; 76. screw nut; 761. limit block; 762. limit rod; 77. cleaning brush; 8. disassembly component; 81. activated carbon net; 82. connecting plate; 821. sealing gasket; 822. first magnet; 823. second magnet; 83. load-bearing plate; 84. trapezoidal groove; 85. trapezoidal block. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The utility model provides an exhaust gas collection device, such as Figure 1-5 As shown, it includes an exhaust hood 1, a connecting pipe 2 is inserted in the middle position of the top of the exhaust hood 1, the end of the connecting pipe 2 is connected to the external collection equipment, a filter screen 3 is fixedly installed near the bottom on the opposite side of the inner cavity of the exhaust hood 1, a cleaning component 7 is arranged at the bottom of the filter screen 3, a rectangular block 4 is near the middle position on the other side of the inner cavity of the exhaust hood 1, a support plate 5 is fixedly installed near the top on the opposite side of the inner cavity of the exhaust hood 1, an exhaust fan 6 is fixedly installed at the middle position of the bottom of the support plate 5, and a disassembly component 8 is arranged at the bottom of the support plate 5.

[0023] It should be noted that when treating the exhaust gas, the exhaust gas is drawn into the collection device by using an exhaust fan. In the process of exhaust gas drawing, external dust is also drawn in. In order to prevent the entry of dust, a filter is usually set in the exhaust hood. When the filter is used for a long time, it is easy to be blocked by dust or impurities, which in turn affects the suction force of the exhaust fan and reduces the exhaust gas collection effect of the device. In order to solve the problems of the prior art, this solution solves the above-mentioned problems through a cleaning component.

[0024] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the cleaning assembly 7 includes a support block 71 fixedly installed at the other side of the inner cavity of the exhaust hood 1 near the middle position and an air flow sensor 72 fixedly installed at the bottom of the support block 71 near one side, a controller 73 is fixedly installed at the top of the support block 71 near the middle position, a drive motor 74 is arranged at one side of the exhaust hood 1 near the middle position, a reciprocating screw 75 is fixedly installed at the end of the power output shaft of the drive motor 74, the end of the reciprocating screw 75 movably passes through the inner cavity of the adjacent exhaust hood 1, and is rotatably connected to the other side of the inner cavity of the exhaust hood 1, a screw nut 76 is movably connected to the outer periphery of the reciprocating screw 75 near the other end, a cleaning brush 77 is fixedly installed on the top of the screw nut 76, and the cleaning brush 77 and the filter 3 are arranged to fit each other.

[0025] In this embodiment, when dust and external impurities clog the filter 3, the air volume passing through the filter 3 is reduced. At this time, the air flow sensor 72 rotates the power output shaft of the drive motor 74 through the controller 73, thereby enabling the reciprocating screw 75 fixed at the end of the power output shaft of the drive motor 74 to rotate. When the reciprocating screw 75 rotates, the screw nut 76 drives the cleaning brush 77 to clean the bottom surface of the filter 3, thereby avoiding affecting the suction force of the exhaust fan 6, thereby improving the efficiency of exhaust gas suction.

[0026] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, a mounting plate 741 is fixedly mounted on the top of the driving motor 74 , and the other side of the mounting plate 741 is fixedly connected to the exhaust hood 1 .

[0027] In this embodiment, the driving motor 74 can be supported by providing a mounting plate 741 .

[0028] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3As shown, a limit block 761 is fixedly installed at the bottom of the screw nut 76 near the front and rear sides, a through hole is opened on one side of the limit block 761, and a limit rod 762 is set through the inner cavity of the through hole, and the two ends of the limit rod 762 are respectively fixedly connected to the inner cavity side walls of the exhaust hood 1.

[0029] In this embodiment, the limiting block 761 and the limiting rod 762 are provided to enable the screw nut 76 to move stably.

[0030] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the air flow sensor 72 is electrically connected to the controller 73 , and the controller 73 is electrically connected to the drive motor 74 .

[0031] In this embodiment, when the air flow through the filter 3 decreases, the air flow sensor 72 transmits a signal to the controller 73, and the controller 73 can make the drive motor 74 work, and the controller 73, the air flow sensor 72 and the drive motor 74 are all electrically connected to an external power supply.

[0032] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the disassembly assembly 8 includes an activated carbon net 81 located on the top of the rectangular block 4 and a connecting plate 82 fixedly installed on the activated carbon net 81, a handle is fixedly installed on one side of the connecting plate 82, a rectangular opening is opened near the middle position on one side of the exhaust hood 1, and one side of the activated carbon net 81 passes through the inner cavity of the rectangular opening, a load-bearing plate 83 is fixedly installed near the middle position on one side of the exhaust hood 1, and trapezoidal grooves 84 are opened on the top of the load-bearing plate 83 near the front and rear sides, and the inner cavity of the trapezoidal grooves 84 are slidably connected with trapezoidal blocks 85, and the tops of the trapezoidal blocks 85 are fixedly connected to the connecting plate 82.

[0033] In this embodiment, the trapezoidal block 85 fixed to the bottom of the connecting plate 82 is slidably connected in the inner cavity of the trapezoidal groove 84, and the activated carbon net 81 is placed on the top of the rectangular block 4, so that the gas in the exhaust gas can be purified.

[0034] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, a sealing gasket 821 is fixedly installed on the other side of the connecting plate 82, and the rectangular opening position can be sealed by setting the sealing gasket 821. A first magnet 822 is fixedly installed on the top of the connecting plate 82. A groove is opened near the middle position on one side of the exhaust hood 1, and a second magnet 823 is fixedly installed on one side of the inner cavity of the groove, and the first magnet 822 and the second magnet 823 are magnetically attracted to each other.

[0035] In this embodiment, by providing the first magnet 822 and the second magnet 823, the connecting plate 82 can be stably magnetically attracted to the outer periphery of the exhaust hood 1, and it is convenient for the staff to subsequently disassemble and replace the activated carbon net 81, thereby improving the effect of exhaust gas filtration.

[0036] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for the present invention.

[0037] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0038] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0039] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An exhaust gas collection device, comprising an exhaust hood (1), characterized in that: A connecting pipe (2) is inserted at the middle position of the top of the exhaust hood (1); a filter screen (3) is fixedly installed near the bottom on one side of the inner cavity of the exhaust hood (1); a cleaning component (7) is arranged at the bottom of the filter screen (3); a rectangular block (4) is fixedly installed near the middle position on the other side of the inner cavity of the exhaust hood (1); a support plate (5) is fixedly installed near the top on one side of the inner cavity of the exhaust hood (1); an exhaust fan (6) is fixedly installed at the middle position of the bottom of the support plate (5); and a disassembly component (8) is arranged at the bottom of the support plate (5); The cleaning assembly (7) comprises a support block (71) fixedly mounted at a position close to the middle of the other side of the inner cavity of the exhaust hood (1) and an air flow sensor (72) fixedly mounted at a position close to one side of the bottom of the support block (71); a controller (73) is fixedly mounted at a position close to the middle of the top of the support block (71); a drive motor (74) is arranged at a position close to the middle of one side of the exhaust hood (1); a reciprocating screw (75) is fixedly mounted at the end of the power output shaft of the drive motor (74); the end of the reciprocating screw (75) movably penetrates the inner cavity of the adjacent exhaust hood (1) and is rotatably connected to the other side of the inner cavity of the exhaust hood (1); a screw nut (76) is movably connected to the outer periphery of the reciprocating screw (75) near the other end; a cleaning brush (77) is fixedly mounted at the top of the screw nut (76); and the cleaning brush (77) and the filter screen (3) are arranged to fit each other.

2. An exhaust gas collection device as claimed in claim 1, characterized in that: A mounting plate (741) is fixedly mounted on the top of the driving motor (74), and the other side of the mounting plate (741) is fixedly connected to the exhaust hood (1).

3. An exhaust gas collection device as claimed in claim 1, characterized in that: A limiting block (761) is fixedly installed at the bottom of the screw nut (76) near the front and rear sides, and a through hole is opened on one side of the limiting block (761), and a limiting rod (762) is arranged through the inner cavity of the through hole, and the two ends of the limiting rod (762) are respectively fixedly connected to the inner cavity side wall of the exhaust hood (1).

4. An exhaust gas collection device as claimed in claim 1, characterized in that: The air flow sensor (72) is electrically connected to the controller (73), and the controller (73) is electrically connected to the drive motor (74).

5. The exhaust gas collection device according to claim 1, characterized in that: The disassembly assembly (8) comprises an activated carbon net (81) located at the top of the rectangular block (4) and a connecting plate (82) fixedly mounted on the activated carbon net (81); a handle is fixedly mounted on one side of the connecting plate (82); a rectangular opening is opened on one side of the exhaust hood (1) near the middle position, and one side of the activated carbon net (81) passes through the inner cavity of the rectangular opening; a load-bearing plate (83) is fixedly mounted on one side of the exhaust hood (1) near the middle position; a trapezoidal groove (84) is opened on the top of the load-bearing plate (83) near the front and rear sides; a trapezoidal block (85) is slidably connected to the inner cavity of the trapezoidal groove (84); and the top of the trapezoidal block (85) is fixedly connected to the connecting plate (82).

6. An exhaust gas collection device as claimed in claim 5, characterized in that: A sealing gasket (821) is fixedly mounted on the other side of the connecting plate (82), a first magnet (822) is fixedly mounted on the top of the connecting plate (82), a groove is provided on one side of the exhaust hood (1) near the middle position, and a second magnet (823) is fixedly mounted on one side of the inner cavity of the groove, and the first magnet (822) and the second magnet (823) are arranged to be magnetically attracted to each other.

Images