Atomic absorption cover

Abstract

The utility model provides an atomic absorption cover, belongs to atomic absorption technical field, the inner wall of support pillar is provided with the pressing mechanism, including connecting pillar, connecting pipe, absorption cover and sticky net, the inner wall of connecting pillar is provided with the chute, the inner wall of connecting pillar is provided with the fixed slot, the fixed slot is connected with the connecting pipe, the absorption cover is connected with the sticky net. Springs are fixedly connected to the inner walls of the top ends of the connecting grooves, connecting pipes are slidably connected to the inner walls of the connecting columns, and connecting blocks are fixedly connected to the outer walls of the top ends of the connecting pipes. According to the atomic absorption cover, after a ventilation cover is taken down from a connecting column, a connecting block of a new air suction cover slides into a fixing groove through a sliding groove and a connecting groove, a spring pushes a pressing plate and extrudes the connecting block, the air suction cover can be rapidly replaced, meanwhile, a bolt is connected with a threaded hole and extrudes a gasket, the gasket extrudes an adhesive net, and the air suction cover can be rapidly replaced. And a new sticky net can be fixed in the absorption cover.

Description

Technical Field

[0001] The utility model relates to the technical field of atomic absorption, in particular to an atomic absorption cover. Background Art

[0002] The atomic absorption hood is mainly used to quickly discharge small-scale dust, hot air, volatile gases, harmful gases and other small particulate suspended matter or gases generated during the experiment, and is used to protect the health of operators and surrounding personnel.

[0003] However, in the use of existing atomic absorption hoods, traditional atomic absorption hoods are usually of an integrated structure and are fixedly installed above the laboratory, and the sticky nets at the bottom of the absorption hood are all adhered to the inner wall of the absorption hood, which is troublesome to replace the sticky nets and clean the inside. Therefore, it is inconvenient to replace the absorption hood at the bottom. Therefore, there is a special need for an atomic absorption hood. Utility Model Content

[0004] The purpose of the utility model is to provide an atomic absorption hood to solve the problem of the existing atomic absorption hood proposed in the above background technology. During use, the traditional atomic absorption hood is usually an integrated structure and is fixedly installed above the laboratory, and the sticky nets at the bottom of the absorption hood are all adhered to the inner wall of the absorption hood. It is troublesome to replace the sticky nets and clean the inside, so it is inconvenient to replace the bottom absorption hood.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an atomic absorption cover, comprising a connecting column, a connecting tube, an absorption cover and a sticky net, a sliding groove is provided on the inner wall of the connecting column, a connecting groove is provided on the inner wall of the connecting column, a fixing groove is provided on the inner wall of the connecting column, a spring is fixedly connected to the inner wall at the top end of the connecting groove, a pressure plate is fixedly connected to the outer wall of one end of the spring, a connecting tube is slidably connected to the inner wall of the connecting column, a connecting block is fixedly connected to the outer wall at the top end of the connecting tube, and the connecting block is slidably connected to the fixing groove, and an absorption cover is fixedly connected to the outer wall at the bottom end of the connecting tube.

[0006] Preferably, a connecting groove is connected to the outer wall of one end of the slide groove, a fixing groove is connected to the outer wall of the connecting groove, and a plurality of groups of the fixing grooves are arranged on the inner wall of the connecting column.

[0007] Preferably, a connecting sleeve is fixedly connected to the inner wall of the connecting column, and the outer wall of the connecting sleeve is slidably connected to the connecting pipe.

[0008] Preferably, a rubber pad is bonded to the outer wall of the connecting sleeve.

[0009] Preferably, a fixing block is fixedly connected to the inner wall of the absorption cover, and the outer wall of the fixing block is slidably connected to the adhesive net. A threaded hole is opened on the outer wall of the fixing block, and a bolt is threadedly connected to the inner wall of the threaded hole. A gasket passes through the outer wall of one end of the bolt.

[0010] Preferably, the fixing blocks are provided in multiple groups on the inner wall of the absorption cover, and the bolts are threadedly connected with the fixing blocks through threaded holes.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The atomic absorption hood, after the ventilation hood is removed from the connecting column, slide the connecting block of the new suction hood into the interior of the fixed groove through the sliding groove and the connecting groove, and push the pressing plate and squeeze the connecting block through the spring, so that the suction hood can be quickly replaced, and at the same time, the bolts are connected to the threaded holes and squeeze the gaskets, so that the gaskets squeeze the sticky net, and the new sticky net can be fixed inside the absorption hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the side view of the appearance structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the connection column and the connection sleeve cooperating with each other in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the connection sleeve and the connection pipe cooperating with each other in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the spring and the pressure plate cooperating with each other in the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the connection pipe and the connection block cooperating with each other in the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the absorption cover and the adhesive net cooperating with each other in the utility model;

[0019] Figure 7 It is a schematic diagram of the structure of the threaded hole and the bolt cooperating with each other in the utility model.

[0020] In the figure: 1. connecting column; 2. connecting sleeve; 3. slide groove; 4. connecting groove; 5. fixing groove; 6. spring; 7. pressure plate; 8. connecting pipe; 9. connecting block; 10. absorption cover; 11. fixing block; 12. threaded hole; 13. bolt; 14. gasket; 15. sticky net; 16. groove. DETAILED DESCRIPTION

[0021] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model are described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] See also Figure 1-Figure 7 As shown, the utility model provides a technical solution: an atomic absorption cover, comprising a connecting column 1, a connecting tube 8, an absorption cover 10 and a sticky net 15, a slide groove 3 is provided on the inner wall of the connecting column 1, a connecting groove 4 is provided on the inner wall of the connecting column 1, a fixing groove 5 is provided on the inner wall of the connecting column 1, a spring 6 is fixedly connected to the inner wall at the top end of the connecting groove 4, a pressure plate 7 is fixedly connected to the outer wall at one end of the spring 6, a connecting tube 8 is slidably connected to the inner wall of the connecting column 1, a connecting block 9 is fixedly connected to the outer wall at the top end of the connecting tube 8, and the connecting block 9 is slidably connected to the fixing groove 5, so An absorption cover 10 is fixedly connected to the outer wall of the bottom end of the connecting tube 8. When replacing the absorption cover 10, first lift the absorption cover 10 so that the connecting block 9 pushes up the pressure plate 7. The spring 6 is forced to shrink toward the upper part of the connecting groove 4, thereby sliding the connecting block 9 into the interior of the connecting groove 4. Then, rotate the absorption cover 10 to drive the connecting tube 8 to rotate, so that the connecting block 9 rotates to the top of the slide groove 3. Finally, relax the absorption cover 10 to make the connecting block 9 slide inside the slide groove 3, and slide the connecting tube 8 out of the interior of the connecting column 1. Then, replace the new absorption cover 10 according to the above steps and reverse the operation.

[0028] In this embodiment, a connecting groove 4 is connected to the outer wall of one end of the slide groove 3, and a fixing groove 5 is connected to the outer wall of the connecting groove 4. Multiple groups of fixing grooves 5 are arranged on the inner wall of the connecting column 1. The connecting block 9 is inserted into the inside of the fixing groove 5 to fix the absorption cover 10 on the surface of the connecting column 1. The arrangement of multiple groups of connecting blocks 9 and the fixing grooves 5 can improve the stability of the absorption cover 10 and the connecting column 1 after connection.

[0029] In this embodiment, a connecting sleeve 2 is fixedly connected to the inner wall of the connecting column 1, and the outer wall of the connecting sleeve 2 is slidably connected to the connecting tube 8. After the connecting tube 8 slides into the interior of the connecting column 1, one end of the connecting tube 8 slides into the interior of the connecting sleeve 2 to prevent external air from being sucked into the interior of the connecting column 1 through the gap between the connecting column 1 and the connecting tube 8 when the absorption cover 10 is in suction operation.

[0030] In this embodiment, a rubber pad is bonded to the outer wall of the connecting sleeve 2 . The design of the rubber pad can increase the sealing performance of the connection between the connecting pipe 8 and the connecting sleeve 2 .

[0031] In this embodiment, a fixing block 11 is fixedly connected to the inner wall of the absorption cover 10, and the outer wall of the fixing block 11 is slidably connected to the sticky net 15. A threaded hole 12 is opened on the outer wall of the fixing block 11, and a bolt 13 is threadedly connected to the inner wall of the threaded hole 12. A gasket 14 penetrates the outer wall of one end of the bolt 13. When replacing the sticky net 15, first remove the sticky net 15 from the inner wall of the absorption cover 10, and slide the groove 16 on the outer wall of the new sticky net 15 with the fixing block 11, then put the gasket 14 on the outer wall of the bolt 13, and then thread the bolt 13 with the threaded hole 12 on the surface of the fixing block 11, so that the gasket squeezes the surface of the fixing block 11 and the sticky net 15, so that the new sticky net 15 is fixed inside the suction cover 10.

[0032] In this embodiment, a plurality of fixing blocks 11 are provided on the inner wall of the absorption hood 10, and the bolts 13 are threadedly connected to the fixing blocks 11 through threaded holes 12. The bolts 13 are connected to the threaded holes 12 and squeeze the gaskets 14, thereby fixing the sticky net 15 on the surface of the fixing block 11. At the same time, the plurality of fixing blocks 11 can improve the stability of the sticky net 15 and the suction hood 10 after being connected.

[0033] Working principle: When replacing the absorption cover 10, first lift the absorption cover 10 so that the connecting block 9 pushes up the pressure plate 7, and the spring 6 is forced to shrink toward the upper part of the connecting groove 4, so that the connecting block 9 slides into the interior of the connecting groove 4, and then rotate the absorption cover 10 to drive the connecting pipe 8 to rotate, so that the connecting block 9 rotates to the top of the slide groove 3, and finally release the absorption cover 10 to make the connecting block 9 slide inside the slide groove 3, and slide the connecting pipe 8 out of the interior of the connecting column 1, and then replace the new absorption cover 10 according to the above steps and reverse the operation, that is, The absorption cover 10 can be replaced. When replacing the sticky net 15, first remove the sticky net 15 from the inner wall of the absorption cover 10, and slide the groove 16 of the outer wall of the new sticky net 15 into connection with the fixing block 11, then insert the gasket 14 into the outer wall of the bolt 13, and then thread the bolt 13 into the threaded hole 12 on the surface of the fixing block 11, so that the gasket squeezes the surface of the fixing block 11 and the sticky net 15, thereby fixing the new sticky net 15 inside the suction cover 10, thus completing the use process of an atomic absorption cover.

[0034] 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. An atomic absorption cover, characterized in that: The invention comprises a connecting column (1), a connecting tube (8), an absorption cover (10) and a sticky net (15), wherein a sliding groove (3) is provided on the inner wall of the connecting column (1), a connecting groove (4) is provided on the inner wall of the connecting column (1), a fixing groove (5) is provided on the inner wall of the connecting column (1), a spring (6) is fixedly connected to the inner wall at the top end of the connecting groove (4), a pressing plate (7) is fixedly connected to the outer wall at one end of the spring (6), a connecting tube (8) is slidably connected to the inner wall of the connecting column (1), a connecting block (9) is fixedly connected to the outer wall at the top end of the connecting tube (8), and the connecting block (9) is slidably connected to the fixing groove (5), and the absorption cover (10) is fixedly connected to the outer wall at the bottom end of the connecting tube (8).

2. The atomic absorption cover according to claim 1, characterized in that: A connecting groove (4) is connected to the outer wall of one end of the slide groove (3), and a fixing groove (5) is connected to the outer wall of the connecting groove (4). Multiple groups of the fixing grooves (5) are arranged on the inner wall of the connecting column (1).

3. The atomic absorption cover according to claim 1, characterized in that: A connecting sleeve (2) is fixedly connected to the inner wall of the connecting column (1), and the outer wall of the connecting sleeve (2) is slidably connected to the connecting pipe (8).

4. The atomic absorption cover according to claim 3, characterized in that: A rubber pad is bonded to the outer wall of the connecting sleeve (2).

5. The atomic absorption cover according to claim 1, characterized in that: A fixing block (11) is fixedly connected to the inner wall of the absorption cover (10), and the outer wall of the fixing block (11) is slidably connected to the adhesive net (15). A threaded hole (12) is provided on the outer wall of the fixing block (11), a bolt (13) is threadedly connected to the inner wall of the threaded hole (12), and a gasket (14) penetrates the outer wall of one end of the bolt (13).

6. The atomic absorption cover according to claim 5, characterized in that: The fixing blocks (11) are arranged in multiple groups on the inner wall of the absorption cover (10), and the bolts (13) are threadedly connected to the fixing blocks (11) through threaded holes (12).

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