Ventilation device for chemical safety

Abstract

The utility model relates to the technical field of chemical safety, and discloses a ventilation device for chemical safety, which comprises a filter screen assembly inserted in a treatment box body in a sliding manner, a circular ring is fixed in one end of a first pipeline, a pushing block is rotatably sleeved on the outer surface of one end of an anti-drop bolt, and a clamping block is arranged in a fixing plate in a sliding manner. According to the ventilation device for chemical safety, the first pipeline, the second pipeline, a limiting frame, a square plate, a circular ring, a rubber sealing ring, an anti-falling bolt, a pushing block and an formed clamping groove are arranged in a matched mode, and when the device is installed, the sealing performance of connection between the pipelines can be effectively enhanced; through cooperative arrangement of the treatment box body, the filter screen assembly, the fixed plate, the movable plate, the clamping block and the reset spring, the filter screen assembly and the treatment box body can be independently detached, and meanwhile the detaching and installing steps are simple and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical safety, in particular to a ventilation device for chemical safety. Background Art

[0002] Chemical industry is an industrial field that uses chemical principles and methods to produce, process and transform chemical substances. Chemical industry covers a wide range of products from basic chemical raw materials such as oil and natural gas to final products such as plastics, medicines, fertilizers, etc. Chemical safety is an important guarantee for the sustainable and healthy development of the chemical industry. The ventilation system plays a vital role in chemical safety. It is not only used to control the concentration of harmful substances in the air, but also helps to prevent fires and explosions, and ensure the comfort and safety of the working environment.

[0003] Chinese patent announcement number CN214746220U discloses a ventilation device for chemical safety, which relates to the field of workshop ventilation, including a mounting seat and an air induced draft hood, one side of the mounting seat is connected to a side plate by bolt threads, one end of the side plate is provided with a filter device, the mounting seat and the inner top wall and inner bottom wall of the air induced draft hood are both provided with a slide slot, the inner side wall of the slide slot is movably connected with a slide plate, one side of the inner bottom wall of the air induced draft hood is provided with a first motor, the output end of the first motor is movably connected with a gear through a coupling, one end of the slide plate is fixedly connected with a protective cover, the inner top wall of the air induced draft hood is provided with a second motor, and the output end of the second motor is movably connected with a fan blade through a coupling. The ventilation device for chemical safety, through the arrangement of the mounting seat, the second motor, the fan blade, the side plate and the filter device, the second motor drives the fan blade to rotate, the fan blade rotates to ventilate the workshop, the airflow passes through the filter device, and the dustproof net and the activated carbon adsorption layer filter the airflow to prevent the harmful gas inside the workshop from being discharged and polluting the environment.

[0004] However, the utility model has the following problems when actually used:

[0005] 1. Most common ventilation devices need to be connected to the air outlet duct, but the sealing is poor during the connection, and harmful gases are easy to leak out, which poses a greater threat to the health of the staff;

[0006] 2. The filter and the device are integrated and fixed, which makes it inconvenient to replace the filter alone. When the filter needs to be replaced, the entire device must be dismantled, and the operation steps are very cumbersome and time-consuming. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] In order to overcome the above-mentioned defects of the prior art, the utility model provides a chemical safety ventilation device, which solves the problems in the prior art:

[0009] 1. Most common ventilation devices need to be connected to the air outlet duct, but the sealing is poor during the connection, and harmful gases are easy to leak out, which poses a greater threat to the health of the staff;

[0010] 2. The filter and the device are integrated and fixed, which makes it inconvenient to replace the filter alone. When the filter needs to be replaced, the entire device must be dismantled, and the operation steps are very cumbersome and time-consuming.

[0011] (II) Technical solution

[0012] To achieve the above objectives, the utility model is implemented through the following technical solutions: a ventilation device for chemical safety, comprising a filter assembly slidably inserted inside a processing box body, a controller is provided on the outer wall of the upper surface of the processing box body, a first pipe is provided on both sides of the processing box body, and a second pipe is slidably inserted inside the first pipe, a circular ring is fixed inside one end of the first pipe, and a rubber sealing ring is fixed on one side of the circular ring, a square plate is fixed at one end of the first pipe near the second pipe, and a card slot is provided in the middle of the square plate, a limiting frame is fixed at one end of the second pipe near the first pipe, and an anti-slip bolt is inserted through the middle thread of the limiting frame, a thrust block is rotatably sleeved on the outer surface of one end of the anti-slip bolt, a fixed plate is fixed in the middle of the outer wall of one side of the processing box body, and a reset spring is provided inside the fixed plate, a card block is slidably provided inside the fixed plate, and movable plates are fixed on both sides of the card block.

[0013] Optionally, two groups of the fixing plates are provided, and the two groups of the fixing plates are symmetrically distributed on both sides of the filter assembly.

[0014] Optionally, the square plates and the limit frames are provided in multiple groups, and the multiple groups of the limit frames and the square plates are respectively located at one end of the first pipe and one end of the second pipe in a circular axis array, and one end of the square plate is slidably inserted into the interior of the second pipe.

[0015] Optionally, one end of the second pipe is located inside the first pipe and is tightly attached to the rubber sealing ring.

[0016] Optionally, the slot is configured to be in the shape of a right-angled trapezoid, and the slot is adapted to the push block, the push block is slidably inserted inside the slot, and the surface of the push block is smooth and free of burrs.

[0017] Optionally, the pushing block slides inside the limiting frame, and the two are tightly attached to each other without leaving a gap in between.

[0018] Optionally, four groups of movable plates are provided, and the four groups of movable plates are symmetrically distributed on both sides of each group of the blocks, one end of the movable plate slides inside the fixed plate, and one side of the other end of the movable plate is tightly attached to the filter assembly.

[0019] Optionally, one side of the block is set as an inclined surface, the other side of the block is set as a vertical surface, and the surface of the block is smooth and free of burrs, and one end of the block is slidably inserted into one end of the filter assembly.

[0020] Optionally, the return spring is provided in multiple groups, and the multiple groups of return springs are respectively located inside the two groups of fixed plates, one end of the return spring is fixedly connected to one side of the inner wall of the fixed plate, and the other end of the return spring is fixedly connected to one side of the block.

[0021] (III) Beneficial effects

[0022] The utility model provides a ventilation device for chemical safety, which has the following beneficial effects:

[0023] 1. The chemical safety ventilation device, through the coordination of the first pipeline, the second pipeline, the limit frame, the square plate, the circular ring, the rubber sealing ring, the anti-drop bolt, the push block and the opened slot, can effectively enhance the sealing of the connection between the pipelines when the device is installed, prevent harmful gases or chemicals from leaking from the pipeline connection into the working environment, thereby protecting the health and safety of the operators, enhancing the safety of the device, and contributing to chemical safety.

[0024] 2. The chemical safety ventilation device can realize the separate detachment of the filter assembly from the processing box through the coordinated arrangement of the processing box, the filter assembly, the fixed plate, the movable plate, the clamping block and the reset spring, so that the filter assembly can be replaced without disassembling the entire device, thus reducing certain operating steps and avoiding complicated operations that delay too much production time. At the same time, the disassembly and assembly steps are simple and quick, and do not rely too much on the experience of the staff, thus providing greater convenience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0026] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the partial cross-section structure of the utility model;

[0028] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0029] Figure 5 This is a schematic diagram of the limit groove structure of the utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the limit block of the utility model;

[0031] Figure 7 This is a schematic diagram of the multi-layer sealing frame structure of the utility model.

[0032] In the figure: 1. processing box; 2. controller; 3. filter assembly; 31. placement box; 32. filter body; 33. limiting groove; 34. limiting block; 35. multi-layer sealing frame; 4. fixing plate; 5. first pipeline; 6. second pipeline; 7. limiting frame; 8. square plate; 9. ring; 10. rubber sealing ring; 11. slot; 12. anti-drop bolt; 13. push block; 14. moving plate; 15. block; 16. reset spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figures 1 to 7 The utility model provides a technical solution: a ventilation device for chemical safety, comprising a filter assembly 3 slidably inserted inside a processing box 1, a controller 2 is arranged on the outer wall of the upper surface of the processing box 1, a first pipe 5 is arranged on both sides of the processing box 1, and a second pipe 6 is slidably inserted inside the first pipe 5, a ring 9 is fixed inside one end of the first pipe 5, and a rubber sealing ring 10 is fixed on one side of the ring 9, and one end of the second pipe 6 is located inside the first pipe 5 and is tightly attached to the rubber sealing ring 10;

[0035] The arrangement of the ring 9 and the rubber sealing ring 10 provides a basic condition for the sealed connection between the first pipe 5 and the second pipe 6, and facilitates the use of the deformation of the rubber sealing ring 10 to fill the gap between the first pipe 5 and the second pipe 6;

[0036] See also Figure 1 to Figure 2A square plate 8 is fixed at one end of the first pipe 5 near the second pipe 6, and a slot 11 is opened in the middle of the square plate 8. A limit frame 7 is fixed at one end of the second pipe 6 near the first pipe 5, and an anti-dropping bolt 12 is inserted through the middle thread of the limit frame 7. A propulsion block 13 is rotatably sleeved on the outer surface of one end of the anti-dropping bolt 12. Multiple groups of square plates 8 and limit frames 7 are provided. Multiple groups of limit frames 7 and square plates 8 are respectively located at one end of the first pipe 5 and one end of the second pipe 6 in a circular axis array. One end of the square plate 8 is slidably inserted into the interior of the second pipe 6. The slot 11 is set in a right-angle trapezoidal shape, and the slot 11 is adapted to the propulsion block 13. The propulsion block 13 is slidably inserted in the slot 11. The surface of the propulsion block 13 is smooth and has no burrs. The propulsion block 13 slides inside the limit frame 7, and the two are tightly attached to each other without leaving a gap in the middle.

[0037] By setting the square plate 8 and the pushing block 13, the distance between the first pipe 5 and the second pipe 6 is gradually shortened, and the fixing effect between the two is more reliable;

[0038] See also Figure 1 , Figure 3 and Figure 4 A fixed plate 4 is fixed at the middle of the outer wall of one side of the processing box body 1, and a return spring 16 is arranged inside the fixed plate 4, a card block 15 is slidably arranged inside the fixed plate 4, and a movable plate 14 is fixed on both sides of the card block 15, two groups of fixed plates 4 are arranged, and the two groups of fixed plates 4 are symmetrically distributed on both sides of the filter assembly 3, and four groups of movable plates 14 are arranged, and the four groups of movable plates 14 are symmetrically distributed on both sides of each group of card blocks 15, one end of the movable plate 14 slides inside the fixed plate 4, and one side of the other end of the movable plate 14 is tightly attached to the filter assembly 3, one side of the card block 15 is set as an inclined surface, and the other side of the card block 15 is set as a vertical surface, and the surface of the card block 15 is smooth and has no burrs, one end of the card block 15 is slidably inserted into one end of the filter assembly 3, and a plurality of groups of return springs 16 are arranged, and the plurality of groups of return springs 16 are respectively located inside the two groups of fixed plates 4, one end of the return spring 16 is fixedly connected to one side of the inner wall of the fixed plate 4, and the other end of the return spring 16 is fixedly connected to one side of the card block 15;

[0039] By setting the clamping block 15 and the return spring 16, the filter assembly 3 can be quickly replaced when it is needed, and the operation steps are simple and easy to understand, saving the time and energy of the workers.

[0040] Embodiment 1;

[0041] See also Figure 5The filter assembly 3 includes a placement box 31, a filter body 32 and a limiting groove 33. The placement box 31 is slidably inserted into the interior of the processing box 1. The filter body 32 is fixed in the middle of the placement box 31. The limiting groove 33 is provided on one side of the inner wall of the processing box 1. One end of the placement box 31 is slidably inserted into the interior of the limiting groove 33. One end of the block 15 is slidably inserted into the middle of the other end of the placement box 31. By setting the placement box 31, the filter body 32 and the limiting groove 33, harmful gases can be basically filtered, and it is convenient to replace a new filter assembly 3 to ensure the best filtering effect.

[0042] Embodiment 2:

[0043] See also Figure 6 The filter assembly 3 includes a placement box 31, a filter body 32, a limiting groove 33 and a limiting block 34. The placement box 31 is slidably inserted into the interior of the processing box 1. The filter body 32 is fixed in the middle of the placement box 31. A limiting groove 33 is provided on one side of the inner wall of the processing box 1. One end of the placement box 31 is slidably inserted into the interior of the limiting groove 33. One end of the card block 15 is slidably inserted into the middle of the other end of the placement box 31. The limiting block 34 is fixed at the bottom end of the inner wall of the processing box 1. The bottom of the placement box 31 is slidably sleeved on the outer surface of the limiting block 34. Through the arrangement of the placement box 31, the filter body 32, the limiting groove 33 and the limiting block 34, the placement box 31 is more stable when sliding and is not easy to tilt.

[0044] Embodiment three;

[0045] See also Figure 7 The filter assembly 3 includes a placement box 31, a filter body 32, a limiting groove 33, a limiting block 34 and a multi-layer sealing frame 35. The placement box 31 is slidably inserted into the interior of the processing box 1, and the filter body 32 is fixed in the middle of the placement box 31. A limiting groove 33 is provided on one side of the inner wall of the processing box 1. One end of the placement box 31 is slidably inserted into the interior of the limiting groove 33. One end of the block 15 is slidably inserted into the middle of the other end of the placement box 31. The limiting block 34 is fixed at the bottom end of the inner wall of the processing box 1. The bottom of the placement box 31 is slidably sleeved on the limiting block At the outer surface of 34, a multi-layer sealing frame 35 is fixed to the outer wall of the other end of the placement box 31, and the multi-layer sealing frame 35 is slidably inserted into the inside of the processing box 1. Through the arrangement of the placement box 31, the filter body 32, the limiting groove 33, the limiting block 34 and the multi-layer sealing frame 35, after the placement box 31 is inserted into the processing box 1, the multi-layer sealing frame 35 can be squeezed by the processing box 1 and the placement box 31, so that the multi-layer sealing frame 35 is deformed by force, thereby avoiding gas leakage from the gap between the processing box 1 and the placement box 31, and enhancing the sealing of the device.

[0046] In the utility model, the working steps of the device are as follows:

[0047] First, connect the two groups of first pipes 5 with the two groups of second pipes 6 respectively. The second pipe 6 can be inserted into the first pipe 5 first, so that one end of the second pipe 6 is tightly against the side of the rubber sealing ring 10. At the same time, the square plate 8 is inserted into the limit frame 7, and then the anti-dropping bolt 12 is rotated to insert the push block 13 into the card slot 11. As the push block 13 is inserted deeper, the square plate 8 is forced to move away from the first pipe 5. The square plate 8 drives the first pipe 5, and the first pipe 5 drives the ring 9 and the rubber sealing ring 10 to move synchronously close to the second pipe 6. Under the extrusion of the ring 9 and the second pipe 6, the rubber sealing ring 10 is deformed by force, so that the gap between the first pipe 5 and the second pipe 6 is filled, and the gas is not easy to leak out. Then the controller 2 can be used to open the ventilation system in the processing box 1. The ventilation system works normally, and the gas is sucked from one group of the second pipes 6 into one group of the first pipes 5, and then enters the processing box 1 from one group of the first pipes 5, and is discharged into another group of the first pipes 5 and the second pipe 6 after passing through the filter assembly 3, and finally discharged. A suitable power system can be installed in the processing box 1 according to demand to power the ventilation system. This is an existing mature technology and will not be elaborated on here.

[0048] If the filter assembly 3 needs to be replaced later, the four groups of movable plates 14 can be pulled in the opposite direction first, so that the two groups of card blocks 15 slide back into the fixed plate 4, and the return spring 16 is compressed by the force. After the card block 15 is detached from the placement box 31, the placement box 31 and the filter body 32 can be pulled out from the processing box 1, and then the new placement box 31 and the filter body 32 can be directly inserted into the processing box 1. During insertion, the card block 15 is squeezed by the placement box 31 and the filter body 32, and will continue to remain in a state of retracting in the fixed plate 4. When the other end of the placement box 31 contacts the card block 15, the card block 15 will be pushed and reinserted into the other end of the placement box 31 under the rebound of the return spring 16, thereby completing the fixation of the filter assembly 3.

[0049] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0050] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0051] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A chemical safety ventilation device, comprising a filter assembly (3) slidably inserted into a treatment box (1), characterized in that: The outer wall of the upper surface of the processing box (1) is provided with a controller (2); the two sides of the processing box (1) are connected with a first pipe (5), and a second pipe (6) is slidably inserted inside the first pipe (5); a circular ring (9) is fixed inside one end of the first pipe (5), and a rubber sealing ring (10) is fixed on one side of the circular ring (9); a square plate (8) is fixed at one end of the first pipe (5) near the second pipe (6), and a slot (11) is provided in the middle of the square plate (8); the second pipe (6) is connected to the first pipe (5) and the second pipe (6) is connected to the second pipe (6). A limit frame (7) is fixed at one end of the channel (6) near the first pipeline (5), and an anti-slip bolt (12) is inserted through the middle thread of the limit frame (7), and a push block (13) is rotatably sleeved on the outer surface of one end of the anti-slip bolt (12). A fixed plate (4) is fixed in the middle of the outer wall of one side of the processing box (1), and a return spring (16) is arranged inside the fixed plate (4), and a clamping block (15) is slidably arranged inside the fixed plate (4), and movable plates (14) are fixed on both sides of the clamping block (15).

2. A chemical safety ventilation device according to claim 1, characterized in that: Two groups of the fixing plates (4) are provided, and the two groups of the fixing plates (4) are symmetrically distributed on both sides of the filter assembly (3).

3. A chemical safety ventilation device according to claim 1, characterized in that: The square plate (8) and the limit frame (7) are provided in multiple groups, and the multiple groups of the limit frames (7) and the square plate (8) are respectively located at one end of the first pipe (5) and one end of the second pipe (6) in a circular axis array manner, and one end of the square plate (8) is slidably inserted into the interior of the second pipe (6).

4. A chemical safety ventilation device according to claim 1, characterized in that: One end of the second pipe (6) is located inside the first pipe (5) and is tightly attached to the rubber sealing ring (10).

5. A chemical safety ventilation device according to claim 1, characterized in that: The card slot (11) is configured in a right-angle trapezoidal shape, and the card slot (11) is adapted to the push block (13). The push block (13) is slidably inserted inside the card slot (11), and the surface of the push block (13) is smooth and free of burrs.

6. A chemical safety ventilation device according to claim 1, characterized in that: The pushing block (13) slides inside the limiting frame (7), and the two are closely attached to each other with no gap in between.

7. A chemical safety ventilation device according to claim 1, characterized in that: Four groups of movable plates (14) are provided, and the four groups of movable plates (14) are symmetrically distributed on both sides of each group of the clamping blocks (15). One end of the movable plate (14) slides inside the fixed plate (4), and one side of the other end of the movable plate (14) is tightly attached to the filter assembly (3).

8. A chemical safety ventilation device according to claim 1, characterized in that: One side of the block (15) is arranged as an inclined surface, the other side of the block (15) is arranged as a vertical surface, and the surface of the block (15) is smooth and free of burrs. One end of the block (15) is slidably inserted into one end of the filter assembly (3).

9. A chemical safety ventilation device according to claim 1, characterized in that: The return spring (16) is provided in multiple groups, and the multiple groups of return springs (16) are respectively located inside the two groups of fixed plates (4), one end of the return spring (16) is fixedly connected to one side of the inner wall of the fixed plate (4), and the other end of the return spring (16) is fixedly connected to one side of the clamping block (15).

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