Gas collecting device for chemical safety

Abstract

The utility model discloses a gas collecting device for chemical safety, which belongs to the technical field of waste gas collection and comprises a flow guide box and a fan, the fan and a connecting plate with a square groove are respectively communicated with two side surfaces of the flow guide box, and two ends of one side, far away from the flow guide box, of the connecting plate are communicated with a collecting pipeline through a through groove. The two ends of the inner side wall of the connecting plate are fixedly connected with limiting bearings in an embedded mode through formed through grooves, inner rings of the limiting bearings are in interference fit with rotating blocks, the adjacent sides of the two rotating blocks are fixedly connected with threaded rods, the threaded rods are in threaded connection with threaded blocks, the side faces of the threaded blocks are fixedly connected with movable plates, and the side faces of the movable plates are fixedly connected with rubber plates. According to the chemical harmful foul gas adsorption and collection device, by controlling the flow direction of chemical harmful foul gas, the filter plate is convenient to replace, and the adsorption and collection efficiency of the chemical harmful foul gas is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas collection, in particular to a gas collection device for chemical safety. Background Art

[0002] A large amount of harmful and polluted gases will be generated during the chemical production process. Gas collection devices are needed to filter, separate and collect the harmful and polluted gases to prevent direct emission of harmful and polluted gases from polluting the air environment. When the existing gas collection devices are in use, the filter plates with the function of filtering and adsorbing harmful gases have reduced adsorption effects after long-term use. When replacing them, the gas collection device needs to be closed to replace the filter plates, which reduces the collection efficiency of the gas collection device for harmful and polluted gases.

[0003] Example (authorization announcement number CN220460199U) a gas collection device for chemical safety, including a collection tube and a mounting frame, the mounting frame is fixedly installed on one side of the collection tube by bolts, and a purification mechanism is arranged inside the collection tube; the purification mechanism includes a sliding frame, a movable frame, a guide rail and a filler, a slide groove is opened inside the collection tube, the sliding frame is slidably connected inside the slide groove, the guide rail is fixedly installed inside the sliding frame, the movable frame is slidably connected to the side wall of the guide rail, and a second spring is fixedly installed on the side wall of the guide rail; in the technical solution provided by the utility model, a purification mechanism is arranged, and chemical gas can be extracted from the gas by installing a fan, so that the gas passes through the filter screen and filler inside the movable frame, and chemical substances in the chemical gas can be adsorbed by arranging a filler on one side of the filter screen to play a collection role, but the device does not consider that when replacing the filter plate with the function of filtering and adsorbing harmful gases, the gas collection device needs to be closed, thereby reducing the collection efficiency of the gas collection device for harmful and dirty gases. Utility Model Content

[0004] The utility model aims to provide a gas collecting device for chemical safety to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas collection device for chemical safety, comprising a guide box and a fan, the two sides of the guide box are respectively connected to the fan and a connecting plate with a square groove, the two ends of the connecting plate on the side away from the guide box are connected to the collection pipe through the through grooves, the two ends of the inner wall of the connecting plate are embedded and fixedly connected with a limited bearing through the through grooves, the inner ring of the limited bearing is interference fit with a rotating block, the adjacent sides of the two rotating blocks are fixedly connected with a threaded rod, the threaded rod is threadedly connected with a threaded block, the side of the threaded block is fixedly connected with a movable plate, the side of the movable plate is fixedly connected with a rubber plate, the end of the rubber plate away from the movable plate is slidably connected to the connecting plate, and the top and bottom ends of the movable plate are slidably connected to the limited plate through the grooves.

[0006] Preferably, one end of the two limit plates away from the movable plate is fixedly connected to the connecting plate, and a rotating motor is installed on the side of the connecting plate.

[0007] Preferably, the output shaft of the rotating motor is fixedly connected to the rotating block on the left, and the top of the collecting pipe is overlapped with a sealing plate through a through groove seal.

[0008] Preferably, a filter plate having the function of filtering and adsorbing harmful and dirty chemical gases is inserted into the bottom end of the sealing plate through a plurality of grooves.

[0009] Preferably, the end surface of the filter plate extends into the interior of the collection pipe, and both side surfaces of the sealing plate are rotatably connected to the telescopic outer plate via a pin shaft.

[0010] Preferably, one end of the telescopic outer plate away from the sealing plate is slidably connected to the movable plate through an inner cavity, and the bottom end of the movable plate is fixedly connected to the telescopic inner plate.

[0011] Preferably, the side surface of the telescopic inner plate is slidably connected to the telescopic outer plate, and one end of the telescopic inner plate away from the movable plate is fixedly connected to a hanging buckle plate.

[0012] Preferably, the top surface of the hanging plate overlaps the collecting pipe, the top of the movable plate is fixedly connected with a booster spring, and the top of the booster spring is fixedly connected to the telescopic outer plate.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The gas collection device for chemical safety is powered by a fan, and is used to extract harmful and dirty chemical gases and introduce them into a guide box. Under the connecting effect of two through grooves of a connecting plate, the gases are introduced into two collecting pipes. Under the adsorption and collection effect of a plurality of filter plates in the pipes that have the function of filtering and adsorbing harmful and dirty chemical gases, the harmful and dirty chemical gases can be adsorbed and collected. To facilitate the disassembly and replacement of the filter plates, the threaded block is moved along the threaded path of the threaded rod, and the position of the rubber plate is controlled during the transmission process. The through grooves provided on the side of the connecting plate are shielded by the rubber plate, so as to block one of the collecting pipes, facilitate the replacement of the filter plates, and simultaneously realize the continuous adsorption and collection of harmful and dirty chemical gases, thereby improving the adsorption and collection efficiency of the gas collection device for harmful and dirty chemical gases.

[0015] The gas collection device for chemical safety provides a sealing and shielding effect on the through groove opened at the top of the collection pipe through the provided sealing plate, so that a plurality of filter plates can be extended into the interior of the collection pipe through the through groove opened at the top of the collection pipe, so as to provide an adsorption and collection effect on chemical harmful and dirty gases. By pulling the hanging buckle plate to extend to a specified position, the two telescopic outer plates and the sealing plate are relatively rotated under the action of the pin shaft, so that the top surfaces of the two hanging buckle plates are conveniently hung on the bottom of the collection pipe. Under the action of the elastic pulling force provided by the booster spring, the top surfaces of the hanging buckle plates are closely contacted with the collection pipe, so as to improve the installation of the filter plates and facilitate the disassembly and replacement of the filter plates, thereby improving the convenience of using the device. The horizontal width of the provided movable plate is greater than that of the telescopic inner plate, so as to prevent the telescopic inner plate from being separated from the telescopic outer plate, and improve the structural stability of the device parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the connecting plate of the utility model;

[0019] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0020] Figure 4 It is a right side cross-sectional view of the telescopic outer panel and the telescopic outer panel of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the sealing plate and the telescopic outer plate of the utility model.

[0022] Description of reference numerals:

[0023] In the figure: 1. guide box; 2. fan; 3. connecting plate; 4. collecting pipe; 5. movable plate; 6. threaded block; 7. rubber plate; 8. threaded rod; 9. rotating block; 10. limit bearing; 11. limit plate; 12. rotating motor; 13. sealing plate; 14. telescopic outer plate; 15. moving plate; 16. telescopic inner plate; 17. hanging buckle plate; 18. booster spring; 19. filter plate. DETAILED DESCRIPTION

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0026] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0027] In order to solve the problem that when replacing the filter plate with the function of filtering and adsorbing harmful gases, the gas collection device for chemical safety needs to be shut down, thereby reducing the collection efficiency of harmful and dirty gases, please refer to Figures 1 to 5 The structure of the device body is a guide box 1 and a fan 2. The two sides of the guide box 1 are respectively connected with the fan 2 and a connecting plate 3 with a square groove. The fan 2 is provided to provide power to extract the chemical harmful and dirty gas into the guide box 1, and then flow into the inside of the connecting plate 3. The two ends of the connecting plate 3 away from the guide box 1 are connected with a collecting pipe 4 through the through grooves provided, so that the chemical harmful and dirty gas flows into the collecting pipe 4, and the chemical harmful and dirty gas is adsorbed and collected. The two ends of the inner wall of the connecting plate 3 are embedded and fixedly connected with limited bearings 10 through the through grooves provided, so that the two limited bearings 10 are fixed on both sides of the connecting plate 3. The inner ring of the limited bearing 10 is interference-fitted with a rotating block 9. The set limited bearing 10 fixes the rotation position of the rotating block 9 and facilitates the relative rotation of the rotating block 9 and the connecting plate 3. The adjacent sides of the two rotating blocks 9 are fixedly connected with threaded rods 8, and the threaded rods 8 are threadedly connected with threaded blocks 6, so that the threaded blocks 6 move along the threaded path of the threaded rods 8.

[0028] A movable plate 5 is fixedly connected to the side of the threaded block 6 to achieve synchronous movement of the movable plate 5 and the threaded block 6. A rubber plate 7 is fixedly connected to the side of the movable plate 5. The end of the rubber plate 7 away from the movable plate 5 is slidably connected to the connecting plate 3. The side of the rubber plate 7 is tightly fitted with the inner wall of the connecting plate 3, which is convenient for alternately blocking the two through grooves opened on the side of the connecting plate 3, so as to control the flow of chemical harmful and polluted gases to the designated collection pipe 4, and to conveniently replace the filter plate 19 with the function of filtering and adsorbing chemical harmful and polluted gases inside the collection pipe 4, so as to realize continuous adsorption and collection of chemical harmful and polluted gases by the gas collection device, and improve the adsorption and collection efficiency of chemical harmful and polluted gases. The top and bottom ends of the movable plate 5 are slidably connected to the limit plate 11 through the grooves opened. The two limit plates 11 are fixedly connected to the connecting plate 3 at one end away from the movable plate 5. The two limit plates 11 are fixed to the moving path of the movable plate 5 to prevent the movable plate 5 from rotating during movement, thereby improving the structural stability of the parts of the gas collection device.

[0029] A rotating motor 12 is installed on the side of the connecting plate 3. The output shaft of the rotating motor 12 is fixedly connected to the rotating block 9 on the left. The fixed end of the rotating motor 12 is fixedly connected to the outer wall of the connecting plate 3. The rotating motor 12 is provided to provide power so that the output shaft of the rotating motor 12 drives the rotating block 9 to rotate during the rotation transmission process. The top of the collecting pipe 4 is overlapped with a sealing plate 13 through the through groove seal. The provided sealing plate 13 provides a sealing and blocking effect on the through groove provided at the top of the collecting pipe 4. The bottom end of the sealing plate 13 is plugged with a filter plate 19 having the function of filtering and adsorbing chemical harmful and dirty gases through a number of grooves provided. The end face of the filter plate 19 extends into the interior of the collecting pipe 4. The provided filter plate 19 provides an adsorption and collection effect on chemical harmful and dirty gases, realizing the function of the gas collection device. Both sides of the sealing plate 13 are rotatably connected with a telescopic outer plate 14 through a pin shaft, so as to facilitate the relative rotation of the two telescopic outer plates 14 and the sealing plate 13. The end of the telescopic outer plate 14 away from the sealing plate 13 is slidably connected with a moving plate 15 through the inner cavity provided. The telescopic outer plate 14 fixes the moving path of the moving plate 15.

[0030] The bottom end of the moving plate 15 is fixedly connected with a telescopic inner plate 16 to achieve synchronous movement of the moving plate 15 and the telescopic inner plate 16. The side of the telescopic inner plate 16 is slidably connected with the telescopic outer plate 14. The width of the moving plate 15 is greater than that of the telescopic inner plate 16. The moving plate 15 is arranged to prevent the telescopic inner plate 16 from being separated from the telescopic outer plate 14 during movement. The end of the telescopic inner plate 16 away from the moving plate 15 is fixedly connected with a buckle plate 17. The top surface of the buckle plate 17 overlaps with the collecting pipe 4, so that the top surfaces of the two buckle plates 17 overlap with the bottom surface of one collecting pipe 4 to achieve the purpose of The sealing plate 13 is installed and fixed, and a booster spring 18 is fixedly connected to the top of the movable plate 15. The top of the booster spring 18 is fixedly connected to the telescopic outer plate 14. The set booster spring 18 provides elastic tension to strengthen the overlap tightness between the top surface of the hanging plate 17 and the bottom surface of the collecting pipe 4, further strengthen the installation tightness of the sealing plate 13, and facilitate the disassembly of the sealing plate 13 from the collecting pipe 4, and release the plug-in effect between the top of the filter plate 19 and the sealing plate 13, so as to realize the convenient disassembly and replacement of the filter plate 19 and improve the convenience of using the device.

[0031] The fan 2 and the rotating motor 12 are both prior arts, and their working principles, sizes and models are irrelevant to the functions of the present application, so they will not be described in detail. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0032] How it works

[0033] When using the gas collection device for chemical safety, the user starts the fan 2 to extract the chemical harmful and dirty gas and introduce it into the guide box 1, and the gas flows into the collection pipe 4 through the connecting plate 3. The filter plate 19 in the collection pipe 4 has the function of filtering and adsorbing the chemical harmful and dirty gas, so as to provide an adsorption and collection function for the chemical harmful and dirty gas, and prevent the need to replace the filter plate 19 so as to close the gas collection device. The rotating motor 12 is started, and the output shaft of the rotating motor 12 rotates to drive the rotating block 9 on the left to rotate. During the transmission process, the threaded block 6 moves along the threaded path of the threaded rod 8, thereby controlling the position of the rubber plate 7. By controlling the rubber plate 7 to provide a blocking effect on one of the two through grooves provided on the side of the connecting plate 3, it is convenient to replace the filter plate 19, and the gas collection device can continuously adsorb and collect the chemical harmful and dirty gas, thereby improving the adsorption and collection efficiency of the gas collection device for the chemical harmful and dirty gas. The limit bearing 10 is provided to fix the rotation position of the rotating block 9, the movable plate 5 is provided to provide a supporting function for the rubber plate 7, and the two limit plates 11 are provided to fix the moving path of the movable plate 5, and prevent the movable plate 5 from rotating, thereby improving the structural stability of the device parts.

[0034] When the filter plate 19 needs to be replaced, the buckle plate 17 is pulled to extend the telescopic inner plate 16 out of the telescopic outer plate 14. The movable plate 15 provided fixes the moving path of the telescopic inner plate 16 and prevents the telescopic inner plate 16 from detaching from the telescopic outer plate 14, releasing the top surface of the buckle plate 17 and the bottom surface of the collecting pipe 4. At this time, the telescopic outer plate 14 is rotated to make the buckle plate 17 move out of the bottom surface of the collecting pipe 4, thereby realizing convenient disassembly of the sealing plate 13, so that the several filter plates 19 plugged at the bottom of the sealing plate 13 are moved out of the collecting pipe 4, and the filter plate 19 plugged with the sealing plate 13 is pulled out to realize convenient disassembly of the filter plate 19. When installing the sealing plate 13, the buckle plate 17 is rotated and moved to the bottom of the collecting pipe 4. Under the elastic tension of the booster spring 18, the overlap tightness between the top surface of the buckle plate 17 and the bottom surface of the collecting pipe 4 is strengthened, and the installation tightness of the filter plate 19 is strengthened during the transmission process, thereby improving the convenience of use of the device.

[0035] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas collection device for chemical safety, comprising a guide box (1) and a fan (2), characterized in that: The two sides of the guide box (1) are respectively connected to the fan (2) and the connecting plate (3) with a square groove, the two ends of the connecting plate (3) away from the guide box (1) are connected to the collecting pipe (4) through the through grooves, the two ends of the inner wall of the connecting plate (3) are embedded and fixedly connected to the limit bearing (10) through the through grooves, and the inner ring of the limit bearing (10) is interference-fitted with a rotating block (9); The two rotating blocks (9) are fixedly connected to threaded rods (8) on the adjacent sides, the threaded rods (8) are threadedly connected to threaded blocks (6), the threaded blocks (6) are fixedly connected to the side surfaces of movable plates (5), the side surfaces of the movable plates (5) are fixedly connected to rubber plates (7), one end of the rubber plates (7) away from the movable plates (5) is slidably connected to the connecting plate (3), and the top and bottom ends of the movable plates (5) are slidably connected to the limiting plates (11) via grooves.

2. A chemical safety gas collection device according to claim 1, characterized in that: One end of the two limit plates (11) away from the movable plate (5) is fixedly connected to the connecting plate (3), and a rotating motor (12) is installed on the side of the connecting plate (3).

3. A chemical safety gas collection device according to claim 2, characterized in that: The output shaft of the rotating motor (12) is fixedly connected to the rotating block (9) on the left, and the top end of the collecting pipe (4) is overlapped with a sealing plate (13) through a through groove.

4. A chemical safety gas collection device according to claim 3, characterized in that: A filter plate (19) having the function of filtering and adsorbing harmful and dirty chemical gases is inserted into the bottom end of the sealing plate (13) through a plurality of grooves provided therein.

5. A chemical safety gas collection device according to claim 4, characterized in that: The end surface of the filter plate (19) extends into the interior of the collection pipe (4), and both side surfaces of the sealing plate (13) are rotatably connected to the telescopic outer plate (14) via a pin shaft.

6. A chemical safety gas collection device according to claim 5, characterized in that: One end of the telescopic outer plate (14) away from the sealing plate (13) is slidably connected to a movable plate (15) via an inner cavity, and the bottom end of the movable plate (15) is fixedly connected to a telescopic inner plate (16).

7. A chemical safety gas collection device according to claim 6, characterized in that: The side surface of the telescopic inner plate (16) is slidably connected to the telescopic outer plate (14), and one end of the telescopic inner plate (16) away from the movable plate (15) is fixedly connected to a hook plate (17).

8. A chemical safety gas collection device according to claim 7, characterized in that: The top surface of the hanging buckle plate (17) overlaps the collecting pipe (4), the top of the movable plate (15) is fixedly connected to a booster spring (18), and the top of the booster spring (18) is fixedly connected to the telescopic outer plate (14).

Images