Laboratory gas purification device

Abstract

The utility model discloses a laboratory gas purification device which comprises a purification box, a discharge pipe and a gas pump, the surface of the discharge pipe is sleeved with a fixing ring, and the top of the fixing ring is provided with a guide mechanism; the guide mechanism comprises a guide cover, a moving plate, a clamping block and a limiting button, the bottom of the guide cover is fixedly connected with the top of the moving plate, the front side of the clamping block makes contact with the front side of the moving plate, the surface of the clamping block makes movable contact with the surface of the fixing ring, and the front side of the limiting button penetrates through the clamping block and makes close contact with the surface of the fixing ring. The problems that in an existing technical scheme, the top of a purification exhaust pipe is not provided with a structure for guiding purified air, and when a purification bin moves to the position close to a wall to be used, air exhausted by the purification exhaust pipe is inconvenient to intensively diffuse in the direction opposite to the wall surface; and the time for uniformly diffusing purified gas into a laboratory is easy to prolong.

Description

Technical Field

[0001] The utility model relates to the field of laboratory gas purification, in particular to a laboratory gas purification device. Background Art

[0002] Laboratory gas purification refers to the treatment of various harmful gases generated in the laboratory to make them meet safe emission standards or be reusable, so a laboratory gas purification device is needed.

[0003] At present, the Chinese patent with announcement number CN214437702U discloses an environmentally friendly laboratory gas purification device, including an air inlet pipe, which is provided with an inactivation mechanism, an air pump and a purification cabin from right to left in sequence, an acid drainage pool is provided at the bottom of the purification cabin, two groups of air inlet and exhaust pipes are provided on the left side of the purification cabin, a purification main pipe is provided below the acid drainage pool, the purification main pipe is connected to the air pump through a pipeline, and several groups of purification branches are provided at equal distances above the purification main pipe. The purification branches are circular pipes and are connected to the purification main pipe below. Several exhaust ports are provided on the outside of the purification branches. The utility model uses an inactivation mechanism to sterilize microorganisms on the gas discharged from the laboratory to avoid biological contamination. After being pressurized by the air pump, it undergoes multi-stage treatment in the purification cabin to complete acid removal, fine filtration, oxidation and adsorption to perform multi-base treatment on the gas, thereby chemically polluting the test exhaust gas. While protecting laboratory personnel, it can also protect the environment of external emissions.

[0004] After reviewing the Chinese patent with publication number CN214437702U, the applicant found the following problems: the top of the purification exhaust pipe proposed in the existing technical solution does not have a structure to guide the purified air. When the purification chamber is moved to a position against the wall for use, the air discharged from the purification exhaust pipe is not convenient to diffuse in a concentrated direction opposite to the wall, which easily prolongs the time for the purified gas to diffuse evenly into the laboratory. Utility Model Content

[0005] The main purpose of the utility model is to provide a laboratory gas purification device, which aims to solve the problem that the top of the purification exhaust pipe proposed in the existing technical solution does not have a structure to guide the purified air. When the purification chamber is moved to a position against the wall for use, the air discharged from the purification exhaust pipe is not convenient to diffuse in a concentrated direction opposite to the wall, which easily prolongs the time it takes for the purified gas to diffuse evenly into the laboratory.

[0006] To achieve the above-mentioned purpose, the utility model proposes a laboratory gas purification device comprising a purification box, an exhaust pipe and an air pump. The surface of the exhaust pipe is provided with a fixed ring, and the top of the fixed ring is provided with a guide mechanism;

[0007] The guide mechanism includes a guide cover, a movable plate, a block and a limit button. The bottom of the guide cover is fixedly connected to the top of the movable plate, the front side of the block is in contact with the front side of the movable plate, the surface of the block is in movably contact with the surface of the fixed ring, the front side of the limit button passes through the block and is in close contact with the surface of the fixed ring, and the surface of the limit button is connected to the internal thread of the block.

[0008] Preferably, a sliding groove is provided inside the fixing ring, and the movable plate is slidably connected inside the sliding groove.

[0009] Preferably, a first screw is provided on the rear side of the clamping block, and a front side of the first screw passes through the clamping block and is connected with the internal thread of the movable plate.

[0010] Preferably, pull blocks are fixedly connected to both sides of the fixing ring.

[0011] Preferably, both sides of the bottom of the fixing ring are fixedly connected with connecting blocks, both sides of the discharge pipe are fixedly connected with limit cards, and the connecting blocks are movably inserted into the inner part of the limit cards.

[0012] Preferably, a second screw is provided on opposite sides of the two connecting blocks, and a side of the second screw close to the connecting block passes through the connecting block and is connected to the internal thread of the discharge pipe.

[0013] Preferably, a handle is fixedly connected to the top of the guide cover.

[0014] In the technical solution of the present invention, the fixing ring is sleeved on the surface of the discharge pipe, so that the connecting block is inserted into the limiting card, and then the second screw is passed through the connecting block and connected with the internal thread of the discharge pipe, so that the fixing ring and the discharge pipe can be connected. Then, the movable plate is inserted into the slide groove, and the block is moved until the surface of the block contacts the surface of the fixing ring. Then, the first screw is passed through the block and connected with the internal thread of the movable plate, so that the movable plate can be limited to the inside of the slide groove and the movable plate can slide inside the slide groove. At this time, the movable plate can support the guide cover. When the purification box is moved to a wall-mounted position for use, the guide cover is rotated to the rear side of the guide cover by holding the handle. When the hood is in a closed position, the air is directed out of the way and out of the wall, and the guide hood is moved to the opposite side of the wall so that the air can be directed out of the way and out of the wall, and ... BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of a three-dimensional structure of a fixing ring in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the rear side of the movable plate in the embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional connection between the drain pipe and the limit card in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the bottom of the fixing ring in the embodiment of the present utility model;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the rear side of the protective cover in an embodiment of the present utility model.

[0022] Explanation of the accompanying figures: 1. Purification box; 2. Discharge pipe; 3. Fixed ring; 4. Guide mechanism; 401. Guide cover; 402. Moving plate; 403. Card block; 404. Limit button; 5. Slide; 6. Pull block; 7. First screw; 8. Limit card; 9. Connecting block; 10. Second screw; 11. Air pump; 12. Handle.

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] The utility model provides a laboratory gas purification device, which aims to solve the problem proposed in the prior art that the top of the purification exhaust pipe does not have a structure for guiding the purified air. When the purification chamber is moved to a position close to the wall for use, the air discharged from the purification exhaust pipe is not convenient to be concentrated and diffused in the direction opposite to the wall, which easily prolongs the time for the purified gas to evenly diffuse into the interior of the laboratory.

[0029] like Figure 1-6 As shown, a laboratory gas purification device provided by an embodiment of the present invention includes a purification box 1, an exhaust pipe 2 and an air pump 11. A fixing ring 3 is provided on the surface of the exhaust pipe 2, and a guide mechanism 4 is provided on the top of the fixing ring 3.

[0030] The guide mechanism 4 includes a guide cover 401, a movable plate 402, a block 403 and a limit button 404. The bottom of the guide cover 401 is fixedly connected to the top of the movable plate 402, the front side of the block 403 is in contact with the front side of the movable plate 402, the surface of the block 403 is in movably contact with the surface of the fixed ring 3, the front side of the limit button 404 passes through the block 403 and is in close contact with the surface of the fixed ring 3, and the surface of the limit button 404 is connected to the internal thread of the block 403.

[0031] In the technical solution of the present invention, the fixing ring 3 is sleeved on the surface of the discharge pipe 2, so that the connecting block 9 is inserted into the limiting card 8, and then the second screw 10 is passed through the connecting block 9 and connected with the internal thread of the discharge pipe 2, so that the fixing ring 3 can be connected to the discharge pipe 2, and then the movable plate 402 is inserted into the inside of the slide groove 5, and the block 403 is moved until the surface of the block 403 contacts the surface of the fixing ring 3, and then the first screw 7 is passed through the block 403 and connected with the internal thread of the movable plate 402, so that the movable plate 402 can be limited to the inside of the slide groove 5, and the movable plate 402 can slide inside the slide groove 5. At this time, the movable plate 402 can support the guide cover 401, and when the purification box 1 is moved to a position against the wall for use, the guide cover can be adjusted by holding the handle 12. 401 is rotated until the rear side of the guide cover 401 is facing the wall, and then the limit button 404 is rotated so that the surface of the limit button 404 is in close contact with the surface of the fixed ring 3. At this time, the friction between the movable plate 402 and the inner wall of the slide groove 5 increases, and the movable plate 402 and the guide cover 401 can be limited. At this time, the air discharged from the exhaust pipe 2 will be concentrated and guided to the side opposite to the wall through the guide cover 401, which is convenient for the purified gas to diffuse quickly into the laboratory, avoiding the problem that the top of the purification exhaust pipe proposed in the existing technical solution does not have a structure for guiding the purified air. When the purification chamber is moved to the wall for use, the air discharged from the purification exhaust pipe is not convenient to diffuse in the direction opposite to the wall, which easily prolongs the time it takes for the purified gas to diffuse evenly into the laboratory.

[0032] Please refer to Figure 2 and Figure 3 A chute 5 is provided inside the fixing ring 3, and the movable plate 402 is slidably connected to the inside of the chute 5. In this embodiment, the movable plate 402 is slidably connected to the inside of the chute 5, so that the movable plate 402 can be easily moved, thereby achieving the effect of facilitating the movement of the movable plate 402.

[0033] For further information, please refer to Figure 1 and Figure 3 A first screw 7 is provided on the rear side of the clamping block 403, and the front side of the first screw 7 passes through the clamping block 403 and is engaged with the internal thread of the movable plate 402. In this embodiment, by passing the first screw 7 through the clamping block 403 and engaging with the internal thread of the movable plate 402, the movable plate 402 can be restrained inside the chute 5, achieving the effect of conveniently restraining the movable plate 402 inside the chute 5.

[0034] Please continue to refer to Figure 2 , both sides of the fixing ring 3 are fixedly connected with a pull block 6. In this embodiment, the fixing ring 3 can be conveniently moved by holding the pull block 6, thereby achieving the effect of conveniently moving the fixing ring 3.

[0035] Please refer to Figure 1 、 Figure 4 and Figure 5 , connecting blocks 9 are fixedly connected to both sides of the bottom of the fixing ring 3, and limit clamps 8 are fixedly connected to both sides of the discharge pipe 2. The connecting blocks 9 are movably inserted into the inner parts of the limit clamps 8. In this embodiment, by sleeve-fitting the fixing ring 3 onto the surface of the discharge pipe 2, the connecting blocks 9 are inserted into the inner parts of the limit clamps 8. The limit clamps 8 can limit the position of the connecting blocks 9 and the fixing ring 3, and then the second screw 10 is connected to the inner thread of the discharge pipe 2.

[0036] Also, please refer to Figure 1 and Figure 5 A second screw 10 is provided on opposite sides of the two connecting blocks 9. The second screw 10 passes through the connecting block 9 on the side closest to the connecting block 9 and is connected to the internal thread of the discharge pipe 2. In this embodiment, the fixing ring 3 and the discharge pipe 2 can be connected by passing the second screw 10 through the connecting block 9 and connecting it to the internal thread of the discharge pipe 2, thereby achieving the effect of convenient connection of the fixing ring 3 and the discharge pipe 2.

[0037] Please refer to Figure 6 The top of the guide cover 401 is fixedly connected with a handle. In the present embodiment, the guide cover 401 can be rotated by holding the handle 12, which makes it easy to rotate the guide cover 401.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A laboratory gas purification device, characterized in that: The laboratory gas purification device comprises a purification box (1), a discharge pipe (2) and an air pump (11); a fixed ring (3) is sleeved on the surface of the discharge pipe (2); and a guide mechanism (4) is provided on the top of the fixed ring (3); The guide mechanism (4) comprises a guide cover (401), a movable plate (402), a clamping block (403) and a limit button (404); the bottom of the guide cover (401) is fixedly connected to the top of the movable plate (402); the front side of the clamping block (403) contacts the front side of the movable plate (402); the surface of the clamping block (403) is in movable contact with the surface of the fixing ring (3); the front side of the limit button (404) passes through the clamping block (403) and is in close contact with the surface of the fixing ring (3); and the surface of the limit button (404) is connected to the internal thread of the clamping block (403).

2. The laboratory gas purification device according to claim 1, characterized in that: A sliding groove (5) is provided inside the fixed ring (3), and the movable plate (402) is slidably connected inside the sliding groove (5).

3. The laboratory gas purification device according to claim 1, characterized in that: A first screw (7) is provided on the rear side of the clamping block (403), and a front side of the first screw (7) passes through the clamping block (403) and is connected to the internal thread of the movable plate (402).

4. The laboratory gas purification device according to claim 1, characterized in that: Pull blocks (6) are fixedly connected to both sides of the fixing ring (3).

5. The laboratory gas purification device according to claim 1, characterized in that: Both sides of the bottom of the fixing ring (3) are fixedly connected with connecting blocks (9), and both sides of the discharge pipe (2) are fixedly connected with limit clamps (8), and the connecting blocks (9) are movably inserted into the interior of the limit clamps (8).

6. The laboratory gas purification device according to claim 5, characterized in that: A second screw (10) is provided on opposite sides of the two connecting blocks (9), and the second screw (10) passes through the connecting block (9) on a side close to the connecting block (9) and is connected to the internal thread of the discharge pipe (2).

7. The laboratory gas purification device according to claim 1, characterized in that: A handle (12) is fixedly connected to the top of the guide cover (401).

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