An adjustable atomic absorption cover

Abstract

The utility model discloses an adjustable atomic absorption cover, which relates to the field of absorption covers, including an upper mounting column, both ends of the upper mounting column cavity are installed with T-shaped sliding bars, an adjustment mechanism for adjusting the atomic absorption cover is installed in the upper mounting column cavity, and the adjustment mechanism includes an installation slide bar, and the cavity on one side of the two installation slide bars is slidably installed with a T-shaped sliding bar. By using the adjustment mechanism, the distance between the bottom of the atomic absorption cover and the test bench is adjusted, the flexibility and practicality of the use of the atomic absorption cover are improved, the needs of different experiments are met, the number of atomic absorption covers installed is reduced, the allocation structure of experimental funds is optimized, and the experimental funds are used reasonably, the driving motor is started, the driving gear block is rotated, and the adjustment rack meshing with the driving gear block moves with the adjustment plate, thereby changing the height of the main working cover and the auxiliary cover, and flexibly adjusting the distance between the main working cover and the auxiliary cover and the test bench surface.

Description

Technical Field

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

[0002] The atomic absorption hood can circulate air, making the air flow smoother and faster, and replacing the original gas faster. Exhaust is often required when doing experiments in precision instrument rooms. The current exhaust equipment mainly includes atomic exhaust hoods, ceiling exhaust hoods and tabletop exhaust hoods.

[0003] The disclosure discloses an atomic absorption hood with the publication number CN209577687U, wherein the atomic absorption hood comprises an absorption hood for covering an experimental table or an experimental equipment, the absorption hood comprises a main body and an air guide portion connected to each other, the main body having a hood air cavity, the air guide portion having an air guide cavity connected to the hood air cavity, the waste gas generated in the experiment enters the hood air cavity and flows out through the air guide cavity, the guide groove of the guide assembly is connected to the absorption hood machine, and the opening is arranged toward the guide cavity, the guide groove is extended along the circumference of the air guide portion, so when the liquid in the waste gas accumulates on the cavity wall of the air guide cavity and flows down, the droplets can drip into the relatively arranged guide grooves, so that the purpose of preventing the droplets from dripping into the experimental equipment or the experimental table below the atomic absorption hood can be achieved, thereby ensuring the cleanliness of the experimental table and the experimental equipment and improving the accuracy of the experiment. During use, the atomic absorption hood is fixedly installed and difficult to adjust and use flexibly.

[0004] The height of the atomic absorption hood is fixed, so that the distance between the bottom of the atomic absorption hood and the test bench is fixed, which reduces the flexibility of the atomic absorption hood and makes it difficult to meet the actual needs of different experiments. In order to meet the needs of the experiment, multiple atomic absorption hoods of different heights are installed, which will increase the experimental investment. Utility Model Content

[0005] The utility model aims to provide an adjustable atomic absorption cover to solve the problem that the height of the sub-absorption cover is fixed in the above background technology, so that the distance between the bottom of the atomic absorption cover and the test bench is fixed, which reduces the flexibility of the use of the atomic absorption cover.

[0006] To achieve the above object, the utility model provides the following technical solutions: an adjustable atomic absorption cover, comprising an upper mounting column, wherein both ends of the upper mounting column cavity are installed with T-shaped sliding bars;

[0007] An adjustment mechanism for adjusting the atomic absorption cover is installed in the upper installation column cavity, and the adjustment mechanism includes an installation slide bar, and a T-shaped slide bar is slidably installed in the cavity on one side of the two installation slide bars, and an adjustment rack is installed at the other end of the two installation slide bars, and the bottoms of the two adjustment racks are respectively installed at the two ends of the top of the adjustment plate;

[0008] A cover body mechanism capable of adjusting the effective area of ​​the atomic absorption cover is provided at the bottom of the adjustment plate. The cover body mechanism comprises a main working cover, an assembly frame is installed in the middle of one side of the main working cover, and an auxiliary plate is installed in the middle of the other side of the main working cover.

[0009] Furthermore, a driving gear block is installed between the two ends at the lower part of the upper mounting column cavity, a driving motor is installed at the lower part of one side of the upper mounting column, and the output end of the driving motor is connected to one end of the driving gear block.

[0010] Furthermore, movable grooves are correspondingly opened at both ends of the main working cover cavity, and one end of the auxiliary cover is wrapped at both ends of the main working cover, and the two auxiliary covers are respectively located at the two ends of the main working cover, and limit blocks are provided on both sides of one end of the two auxiliary covers, and the limit blocks are one-to-one correspondingly inserted into the two ends of the two movable grooves.

[0011] Furthermore, a right mounting plate and a left mounting plate are respectively installed at one end of one side of the two auxiliary covers, a left assembly plate and a right assembly plate are respectively installed at one end of the other side of the two auxiliary covers, an adjusting gear disc is installed in the middle of one end in the assembly frame cavity, a rotating handle is installed on one side of the adjusting gear disc, and the rotating handle is located on one side of the assembly frame.

[0012] Furthermore, a movable rack is installed on the upper side of one side of the right mounting plate, and the lower side of one end of the movable rack on the right mounting plate is meshed with the upper side of the adjusting gear disk. A movable rack is installed on the lower side of one side of the left mounting plate, and the upper side of one end of the movable rack on the left mounting plate is meshed with the lower side of the adjusting gear disk.

[0013] Furthermore, a guide slide bar is installed on the upper side of the left assembly plate, and a guide slide bar is installed on the upper side of the right assembly plate, and one end of the two guide slide bars passes through the installation openings opened on the upper and lower sides of the auxiliary plate in a one-to-one correspondence.

[0014] Furthermore, an assembling block is provided on the top of the main working cover, and fixing holes are opened in an array at both ends of the outer side of the assembling block, a bidirectional screw is installed between the two ends of the bottom of the adjusting plate, and movable sliders are sleeved at both ends of the outer side of the bidirectional screw, and fixed arc blocks are installed at the bottom of the two movable sliders, and fixed clamping columns are arranged in an array on the inner sides of the two fixed arc blocks, and the two fixed arc blocks are respectively located at the two ends of the outer side of the assembling block, and the fixed clamping columns are inserted into the fixing holes one by one.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By using the adjustment mechanism, the distance between the bottom of the atomic absorption cover and the test bench is adjusted to improve the flexibility and practicality of the use of the atomic absorption cover, meet the needs of different experiments, reduce the number of atomic absorption covers installed, optimize the allocation structure of experimental funds, and make reasonable use of experimental funds.

[0017] 2. Start the drive motor to rotate the drive gear block, and the adjustment rack meshing with the drive gear block moves with the adjustment plate, thereby changing the height of the main working cover and the auxiliary cover, and flexibly adjusting the distance between the main working cover and the auxiliary cover and the test bench.

[0018] 3. The cover body mechanism can be used to change the area of ​​the atomic absorption cover, so that the atomic absorption cover can act on a larger space, reduce the number of atomic absorption covers installed in the laboratory, improve the utilization rate of the laboratory space, and save money at the same time.

[0019] 4. Turn the handle to rotate the adjusting gear disc, so that the movable rack pushes the auxiliary cover out of the main working cover cavity to expand the working area.

[0020] 5. Turn the bidirectional screw to make the moving slider carry the fixed arc block to clamp the assembly block, which is convenient for users to replace and repair the cover body of the atomic absorption cover, saving replacement time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the adjusting rack of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the main working cover of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the movable rack of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the guide slide bar of the utility model;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixed arc block of the utility model.

[0027] In the figure: 1. Upper mounting column; 2. T-shaped sliding bar; 3. Mounting sliding bar; 4. Adjusting rack; 5. Adjusting plate; 6. Main working cover; 7. Assembly frame; 8. Auxiliary plate; 9. Driving gear block; 10. Driving motor; 11. Moving groove; 12. Auxiliary cover; 13. Limit block; 14. Right mounting plate; 15. Left mounting plate; 16. Left assembly plate; 17. Right assembly plate; 18. Adjusting gear disc; 19. Turning handle; 20. Moving rack; 21. Guide slide bar; 22. Mounting port; 23. Assembling block; 24. Fixing hole; 25. Bidirectional screw; 26. Moving slider; 27. Fixed arc block; 28. Fixed clamping column. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-Figure 6 , the utility model provides the following technical solutions: an adjustable atomic absorption cover, comprising an upper mounting column 1, both ends of the cavity of the upper mounting column 1 are installed with T-shaped sliding bars 2;

[0030] Embodiment 1: Figure 1-Figure 2 As shown, the device utilizes an adjustment mechanism to flexibly adjust the height of the atomic absorption cover, as follows:

[0031] An adjustment mechanism for adjusting the atomic absorption cover is installed in the cavity of the upper mounting column 1, and the adjustment mechanism includes a mounting slide bar 3, and a T-shaped slide bar 2 is slidably installed in the cavity on one side of the two mounting slide bars 3, and an adjustment rack 4 is installed at the other end of the two mounting slide bars 3, and the bottoms of the two adjustment racks 4 are respectively installed at the two ends of the top of the adjustment plate 5, and a driving gear block 9 is installed between the two ends below the cavity of the upper mounting column 1, and a driving motor 10 is installed below one side of the upper mounting column 1, and the output end of the driving motor 10 is connected to one end of the driving gear block 9;

[0032] The cooperation of the installed slide bar 3 and the T-shaped slide bar 2 can improve the stability of the internal structure of the adjustment mechanism, and at the same time limit the direction of movement of the adjustment plate 5, so that the adjustment plate 5 can stably move up and down to adjust the height, and the drive motor 10 provides power for the movement of the adjustment plate 5.

[0033] Embodiment 2: Figure 3-Figure 5 As shown, the device uses a cover body mechanism to change the working area of ​​the atomic absorption cover, as follows:

[0034] A cover body mechanism capable of adjusting the effective area of ​​the atomic absorption cover is provided at the bottom of the adjustment plate 5, and the cover body mechanism comprises a main working cover 6, an assembly frame 7 is installed in the middle of one side of the main working cover 6, an auxiliary plate 8 is installed in the middle of the other side of the main working cover 6, and movable grooves 11 are correspondingly provided at both ends of the cavity of the main working cover 6, and both ends of the cavity of the main working cover 6 are wrapped with one end of an auxiliary cover 12, and the two auxiliary covers 12 are respectively located at the two ends of the main working cover 6, and both sides of one end of the two auxiliary covers 12 are provided with limit blocks 13, and the limit blocks 13 are correspondingly inserted into the two ends of the two movable grooves 11;

[0035] A right mounting plate 14 and a left mounting plate 15 are respectively installed at one end of one side of the two auxiliary covers 12, and a left assembly plate 16 and a right assembly plate 17 are respectively installed at one end of the other side of the two auxiliary covers 12. An adjusting toothed disc 18 is installed at the middle of one end in the cavity of the assembly frame 7, and a rotating handle 19 is installed at one side of the adjusting toothed disc 18, and the rotating handle 19 is located at one side of the assembly frame 7;

[0036] A movable rack 20 is installed on the upper side of one side of the right mounting plate 14, and the lower side of one end of the movable rack 20 on the right mounting plate 14 is meshed with the upper side of the adjusting toothed disc 18. A movable rack 20 is installed on the lower side of one side of the left mounting plate 15, and the upper side of one end of the movable rack 20 on the left mounting plate 15 is meshed with the lower side of the adjusting toothed disc 18. A guide slide bar 21 is installed on the upper side of one side of the left assembly plate 16, and a guide slide bar 21 is installed on the upper side of one side of the right assembly plate 17, and one end of the two guide slide bars 21 passes through the mounting openings 22 provided on the upper and lower sides of the auxiliary plate 8 in a one-to-one correspondence.

[0037] The right mounting plate 14 and the left mounting plate 15 are used to cooperate with the adjusting gear plate 18 to assemble the movable rack 20, so that the movable rack 20 drives the auxiliary cover 12 to move. The left assembly plate 16 and the right assembly plate 17 are used to cooperate with the auxiliary plate 8 to assemble the guide slide rod 21, so that the guide slide rod 21 cooperates with the mounting port 22 of the auxiliary plate 8, thereby improving the reliability of the structure between the main working cover 6 and the auxiliary cover 12.

[0038] Embodiment 3: Figure 1 and Figure 6 As shown, the device uses the assembly block 23 and the fixed arc block 27 to facilitate the disassembly and replacement of the atomic absorption cover, as follows:

[0039] An assembling block 23 is provided on the top of the main working cover 6, and fixing holes 24 are arranged in an array at both ends of the outer side of the assembling block 23. A bidirectional screw 25 is installed between the two ends of the bottom of the adjusting plate 5, and a movable slider 26 is sleeved at both ends of the outer side of the bidirectional screw 25. A fixed arc block 27 is installed at the bottom of the two movable sliders 26. Fixed clamping columns 28 are arranged in an array on the inner sides of the two fixed arc blocks 27, and the two fixed arc blocks 27 are respectively located at the two ends of the outer side of the assembling block 23, and the fixed clamping columns 28 are correspondingly inserted into the fixing holes 24 one by one.

[0040] The two movable sliders 26 of the bidirectional screw 25 are used to move the fixed arc block 27, so that the two fixed arc blocks 27 move toward the neutral position of the bidirectional screw 25 to clamp the assembly block 23, and the fixed clamping column 28 is clamped into the fixing hole 24 to improve the reliability and firmness of the fixed arc block 27 clamping the assembly block 23.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable atomic absorption hood, comprising an upper mounting column (1), wherein both ends of the cavity of the upper mounting column (1) are provided with T-shaped sliding bars (2); It is characterized in that An adjustment mechanism for adjusting the atomic absorption cover is installed in the cavity of the upper mounting column (1), and the adjustment mechanism includes a mounting slide bar (3), and a T-shaped slide bar (2) is slidably installed in the cavity on one side of the two mounting slide bars (3), and an adjustment rack (4) is installed at the other end of the two mounting slide bars (3), and the bottoms of the two adjustment racks (4) are respectively installed at the two ends of the top of the adjustment plate (5); A cover body mechanism capable of adjusting the effective area of ​​the atomic absorption cover is provided at the bottom of the adjustment plate (5), the cover body mechanism comprising a main working cover (6), an assembly frame (7) being installed in the middle of one side of the main working cover (6), and an auxiliary plate (8) being installed in the middle of the other side of the main working cover (6).

2. The adjustable atomic absorption cover according to claim 1, characterized in that: A driving tooth block (9) is installed between the two ends at the bottom of the cavity of the upper mounting column (1), a driving motor (10) is installed at the bottom of one side of the upper mounting column (1), and the output end of the driving motor (10) is connected to one end of the driving tooth block (9).

3. The adjustable atomic absorption cover according to claim 1, characterized in that: The two ends of the cavity of the main working cover (6) are correspondingly provided with movable grooves (11), and the two ends of the cavity of the main working cover (6) are both wrapped with one end of the auxiliary cover (12), and the two auxiliary covers (12) are respectively located at the two ends of the main working cover (6), and the two ends of the two auxiliary covers (12) are both provided with limit blocks (13), and the limit blocks (13) are one-to-one correspondingly inserted into the two ends of the two movable grooves (11).

4. The adjustable atomic absorption cover according to claim 3, characterized in that: A right mounting plate (14) and a left mounting plate (15) are respectively mounted on one end of one side of the two auxiliary covers (12), a left assembly plate (16) and a right assembly plate (17) are respectively mounted on one end of the other side of the two auxiliary covers (12), an adjusting toothed disc (18) is mounted in the middle of one end in the cavity of the assembly frame (7), a rotating handle (19) is mounted on one side of the adjusting toothed disc (18), and the rotating handle (19) is located on one side of the assembly frame (7).

5. The adjustable atomic absorption cover according to claim 4, characterized in that: A movable rack (20) is installed on the upper side of one side of the right mounting plate (14), and the lower side of one end of the movable rack (20) on the right mounting plate (14) is meshed with the upper side of the adjusting toothed disc (18); a movable rack (20) is installed on the lower side of one side of the left mounting plate (15), and the upper side of one end of the movable rack (20) on the left mounting plate (15) is meshed with the lower side of the adjusting toothed disc (18).

6. The adjustable atomic absorption cover according to claim 4, characterized in that: A guide slide bar (21) is installed on the upper side of one side of the left assembly plate (16), and a guide slide bar (21) is installed on the upper side of one side of the right assembly plate (17), and one end of the two guide slide bars (21) passes through the installation openings (22) provided on the upper and lower sides of the auxiliary plate (8) in a one-to-one correspondence.

7. The adjustable atomic absorption cover according to claim 1, characterized in that: The top of the main working cover (6) is provided with an assembling block (23), and both ends of the outer side of the assembling block (23) are provided with fixing holes (24) in an array. A bidirectional screw (25) is installed between the two ends of the bottom of the adjustment plate (5), and both ends of the outer side of the bidirectional screw (25) are sleeved with movable sliders (26). The bottoms of the two movable sliders (26) are both provided with fixed arc blocks (27), and the inner sides of the two fixed arc blocks (27) are both provided with fixed clamping columns (28) in an array. The two fixed arc blocks (27) are respectively located at the two ends of the outer side of the assembling block (23), and the fixed clamping columns (28) are correspondingly inserted into the fixing holes (24).

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