Suction device for medicine detection center

Abstract

The utility model relates to the field of air suction devices for laboratories, in particular to a suction device for a drug detection center, which comprises a plurality of air suction pipes connected in sequence, the lower end of the air suction pipe at the lowest end is coaxially connected with a connecting ring, and the lower end of the connecting ring is provided with an air suction cover with a downward opening. A plurality of first rotating shafts are rotationally connected to the outer side wall of the connecting ring, the first rotating shafts are evenly distributed in the circumferential direction of the connecting ring, elastic belts are wound around the first rotating shafts, fixing pieces used for fixing the elastic belts are arranged on the connecting ring, and buckles are arranged at the ends, away from the first rotating shafts, of the elastic belts; a hook is arranged at the end, away from the elastic band, of the buckle. The air suction hood has the effect of reducing shaking of the air suction hood during high-power air suction.

Description

Technical Field

[0001] The present application relates to the field of suction devices for laboratories, and in particular to a suction device for use in drug testing centers. Background Art

[0002] The laboratory is a place for conducting experiments. Various experimental activities need to be carried out in the laboratory. Some experiments often generate a large amount of dust, which makes the air quality in the laboratory deteriorate and affects the health of the experimenters.

[0003] The invention patent with publication number CN110548742A discloses an adjustable suction device for laboratory use, including: an arc-shaped suction hood, the bottom end of which is open downward; a first connecting pipe, one end of which is connected to the top of the arc-shaped suction hood, and the other end of the first connecting pipe is provided with an external thread on the outer wall; a second connecting pipe, one end of which is provided with an internal thread on the inner wall, and is threadedly connected to one end of the first connecting pipe provided with an external thread, and the other end of the second connecting pipe is connected to a gas purification device.

[0004] Some experiments require the use of highly volatile reagents. In order to reduce the harm of the reagents to the operators, the power of the suction device is generally increased. However, when the suction device is working with a high probability, the suction pipe and the suction hood will shake, so that the suction hood will no longer be aimed at the target that needs to be inhaled, which reduces the suction effect. Utility Model Content

[0005] In order to reduce the shaking of the suction hood during high-power suction, the present application provides a suction device for a drug testing center.

[0006] The present application provides a suction device for a drug testing center using the following technical solution:

[0007] A suction device for a drug testing center comprises a plurality of suction pipes connected in sequence, wherein the lower end of the lowest suction pipe is coaxially connected to a connecting ring, the lower end of the connecting ring is provided with a suction hood opening downward, a plurality of first rotating shafts are rotatably connected to the outer side wall of the connecting ring, the plurality of first rotating shafts are evenly distributed along the circumference of the connecting ring, an elastic belt is wound around the first rotating shaft, a fixing piece for fixing the elastic belt is provided on the connecting ring, a buckle is provided at one end of the elastic belt away from the first rotating shaft, and a hook is provided at one end of the buckle away from the elastic belt.

[0008] By adopting the above technical solution, the operator pulls out an elastic band of appropriate length from the first rotating shaft, and then uses a fixing device to fix the elastic band to the connecting ring, and then connects the hook on the buckle at the other end of the elastic band to a suitable position, so that the buckle is fixed, and after the buckle is fixed, the elastic band is fixed, and after multiple elastic bands are fixed, the positions of the connecting ring and the air intake hood are relatively fixed, thereby reducing the shaking of the air intake hood under strong wind force.

[0009] Optionally, the buckle includes a base, a second rotating shaft, a clamping plate and a torsion spring, the base is provided with a clamping groove for accommodating the elastic band, the second rotating shaft is rotatably connected in the clamping groove, the clamping plate is provided on the axial surface of the second rotating shaft, and the torsion spring is externally disposed on the second rotating shaft and is used to maintain the clamping plate against the bottom of the clamping groove.

[0010] By adopting the above technical solution, when connecting the elastic band and the buckle, the operator first lifts the card plate to separate the card plate from the card slot, and then puts one end of the elastic band into the card slot. The torsion spring drives the second rotating shaft to rotate so that the card plate and the elastic band are pressed tightly, completing the connection between the elastic band and the buckle. This connection method is relatively convenient to operate.

[0011] Optionally, a pressing plate is provided on the side wall of the second rotating shaft, and the pressing plate and the clamping plate are respectively located on both sides of the second rotating shaft in the horizontal direction, and the pressing plate is inclined in a direction away from the base and away from the second rotating shaft.

[0012] By adopting the above technical solution, after the operator presses the pressing plate, the pressing plate drives the second rotating shaft to rotate, and the rotation of the second rotating shaft drives the clamping plate to be lifted. This structure facilitates the rotation of the clamping plate.

[0013] Optionally, a locking tooth is provided on one side of the clamping plate facing the clamping groove.

[0014] By adopting the above technical solution, the clamping teeth play a role in clamping the elastic band, thereby reducing the occurrence of the elastic band slipping out of the clamping groove.

[0015] Optionally, a protective shell is provided on the outer side wall of the connecting ring, the first rotating shaft is coaxially rotatably connected in the protective shell, and a through hole for the elastic band to pass through is opened on the side wall of the protective shell.

[0016] By adopting the above technical solution, the protective shell plays a role in protecting the elastic belt and reducing the corrosion of the elastic belt by volatile gases in the laboratory.

[0017] Optionally, a handle is rotatably connected to the outer wall of the protective shell, and the handle is coaxially connected to the first rotating shaft.

[0018] By adopting the above technical solution, the first rotating shaft is driven to rotate by rotating the handle, and the elastic band is wound around the first rotating shaft when the first rotating shaft rotates, which facilitates the storage of the elastic band.

[0019] Optionally, the fixing member includes a fixing rod and a blocking block, the fixing rod is rotatably connected to the protective shell, and a slot for locking with the blocking block is provided on the outer wall of the blocking block protective shell. When the blocking block is inserted into the slot, the fixing rod is pressed against the elastic band.

[0020] By adopting the above technical solution, the operator first rotates the fixing rod to separate the card block from the card slot, pulls the elastic band to a suitable length, and then rotates the fixing rod to lock the card block into the card slot. When the card block is locked into the card slot, the fixing rod presses against the elastic band, thereby fixing the position of the elastic band.

[0021] Optionally, a first connecting plate is provided on the outer wall of the connecting ring, and a second connecting plate is provided on the outer wall of the protective shell. The first connecting plate is rotatably connected with a bolt, and the bolt passes through the first connecting plate and is threadedly connected to the second connecting plate.

[0022] By adopting the above technical solution, after removing the bolts from the first connecting plate and the second connecting plate, the operator can replace different protective shells, thereby replacing elastic bands of different lengths to adapt to different working environments.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. After the operator pulls out an elastic belt of appropriate length from the first rotating shaft, he uses a fixing piece to fix the elastic belt to the connecting ring, and then connects the hook on the buckle at the other end of the elastic belt to a suitable position to fix the elastic belt. After multiple elastic belts are fixed, the positions of the connecting ring and the air hood are relatively fixed, thereby reducing the shaking of the air hood under strong wind force;

[0025] 2. When connecting the elastic band and the buckle, the operator first lifts the card plate to separate the card plate from the card slot, and then puts one end of the elastic band into the card slot. The torsion spring drives the shaft to rotate so that the card plate and the elastic band are pressed tightly together, completing the connection between the elastic band and the buckle. This connection method is more convenient to operate;

[0026] 3. The clamping teeth play the role of clamping the elastic band, reducing the elastic band from slipping out of the clamping groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of a suction device used in a drug testing center according to an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Magnified view of the structure within the circle.

[0029] Figure 3It is a schematic diagram of the structure of a fixing rod of a suction device used in a drug testing center according to an embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view of a protective shell of a suction device used in a drug testing center according to an embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the structure of a buckle of a suction device used in a drug testing center in an embodiment of the present application.

[0032] Figure 6 It is a structural schematic diagram of a rotating shaft, a pressing plate, a clamping plate and a torsion spring of a suction device used in a drug testing center in an embodiment of the present application.

[0033] Explanation of the reference numerals: 1. Intake pipe; 11. Intake hood; 12. Connecting ring; 121. First connecting plate; 122. Bolt; 2. Protective shell; 21. First rotating shaft; 22. Elastic band; 23. Through hole; 24. Handle; 25. Second connecting plate; 3. Fixing member; 31. Fixing rod; 32. Block; 33. Slot; 4. Buckle; 41. Base; 411. Snap-in slot; 42. Second rotating shaft; 43. Card plate; 431. Card tooth; 44. Torsion spring; 45. Pressing plate; 5. Hook. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a suction device for a drug testing center. Figure 1 A suction device for a drug testing center includes a plurality of suction pipes 1 connected in sequence, the suction pipes 1 are rotatably connected to each other to adjust the suction angle, the lower end of the lowest suction pipe 1 is fixedly connected to a connecting ring 12, and the lower end of the connecting ring 12 is fixedly connected to a suction hood 11.

[0036] Reference Figure 2 A plurality of first connecting plates 121 are fixedly connected to the outer wall of the connecting ring 12, and the plurality of first connecting plates 121 are evenly distributed along the circumference of the connecting ring 12. The first connecting plate 121 is connected to the second connecting plate 25 through a bolt 122, and the bolt 122 is rotatably connected to the first connecting plate 121. The bolt 122 penetrates the first connecting plate 121 and is threadedly connected to the second connecting plate 25. The end of the second connecting plate 25 away from the connecting ring 12 is fixedly connected to the protective shell 2.

[0037] Reference Figure 2 , Figure 3 as well as Figure 4The inner wall of the protective shell 2 is coaxially connected with a first rotating shaft 21, an elastic band 22 is wound around the first rotating shaft 21, a through hole 23 for the elastic band 22 to pass through is provided on the side wall of the protective shell 2, a fixing member 3 for fixing the elastic band 22 is installed on the outer wall of the protective shell 2, the fixing member 3 includes a fixing rod 31 and a block 32, the fixing rod 31 is rotatably connected to the outer wall of the protective shell 2, the block 32 is fixed to the outer wall of the protective shell 2, and the block 32 and the fixing rod 31 are respectively located at the upper and lower sides of the protective shell 2 At the end, a slot 33 for locking with the block 32 is opened on the fixing rod 31. When the elastic band 22 is pulled to a suitable length, the fixing rod 31 is rotated to make the block 32 and the slot 33 lock, so that the fixing rod 31 is pressed against the elastic band 22, thereby fixing the elastic band 22. The upper end of the protective shell 2 is coaxially connected to the handle 24, and the handle 24 is coaxially connected to the first rotating shaft 21. When the handle 24 is rotated, the first rotating shaft 21 is driven to rotate, thereby facilitating the elastic band 22 to be wound around the first rotating shaft 21.

[0038] Reference Figure 2 , Figure 5 as well as Figure 6 The end of the elastic band 22 away from the protective shell 2 is detachably connected with a buckle 4, and the buckle 4 includes a base 41, a second rotating shaft 42, a clamping plate 43 and a torsion spring 44. The base 41 is provided with a clamping groove 411 for accommodating the elastic band 22. The second rotating shaft 42 is rotatably connected in the clamping groove 411. The second rotating shaft 42 is vertically arranged with the elastic band 22. The clamping plate 43 is fixedly connected to the axial surface of the second rotating shaft 42. A pressing plate 45 is fixedly connected to the axial surface of the second rotating shaft 42. The pressing plate 45 and the clamping plate 43 are respectively located on both sides of the second rotating shaft 42 in the horizontal direction. The pressing plate 45 is tilted in a direction away from the base 41 and away from the second rotating shaft 42. The torsion spring 44 The sleeve is mounted on the second rotating shaft 42, and the two arms of the torsion spring 44 are respectively connected to the pressing plate 45 and the clamping groove 411. The torsion spring 44 is used to maintain the state that the clamping plate 43 is pressed against the bottom of the clamping groove 411. When the elastic band 22 is connected, the pressing plate 45 is pressed to lift the clamping plate 43. After the elastic band 22 is placed in the clamping groove 411, the torsion spring 44 drives the second rotating shaft 42 to rotate so that the clamping plate 43 clamps the elastic band 22. The end of the clamping plate 43 facing the elastic band 22 is connected with a clamping tooth 431, and the clamping tooth 431 plays a clamping role. The end of the base 41 away from the elastic band 22 is fixedly connected with a hook 5. After the hook 5 is hung in a suitable position, the position of the buckle 4 is fixed.

[0039] The implementation principle of the suction device for a drug testing center in the embodiment of the present application is as follows: after the operator pulls the elastic band 22 out of the protective shell 2 to a suitable length, the operator rotates the fixing rod 31 so that the clamping block 32 is locked with the clamping slot 33, thereby fixing the end of the elastic band 22 close to the air hood 11, and then presses the pressing plate 45, which drives the second rotating shaft 42 to rotate so that the clamping plate 43 is lifted. After the elastic band 22 is placed in the clamping slot 411, the torsion spring 44 drives the second rotating shaft 42 to rotate so that the clamping plate 43 clamps the elastic band 22, and then hangs the hook 5 in a suitable position so that the position of the buckle 4 is fixed. After the buckle 4 is fixed, the end of the elastic band 22 away from the air hood 11 is fixed. After multiple elastic bands 22 are fixed, the position of the air hood 11 is relatively fixed, thereby reducing the shaking of the air hood 11 under strong wind force.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A suction device for a drug testing center, characterized in that: The invention comprises a plurality of suction pipes (1) connected in sequence, wherein the lower end of the lowest suction pipe (1) is coaxially connected to a connection ring (12), the lower end of the connection ring (12) is provided with a suction hood (11) opening downward, a plurality of first rotating shafts (21) are rotatably connected to the outer wall of the connection ring (12), the plurality of first rotating shafts (21) are evenly distributed along the circumference of the connection ring (12), an elastic belt (22) is wound around the first rotating shaft (21), a fixing member (3) for fixing the elastic belt (22) is provided on the connection ring (12), a buckle (4) is provided at one end of the elastic belt (22) away from the first rotating shaft (21), and a hook (5) is provided at one end of the buckle (4) away from the elastic belt (22).

2. The suction device for a drug testing center according to claim 1, characterized in that: The buckle (4) comprises a base (41), a second rotating shaft (42), a clamping plate (43) and a torsion spring (44); the base (41) is provided with a clamping groove (411) for accommodating the elastic band (22); the second rotating shaft (42) is rotatably connected in the clamping groove (411); the clamping plate (43) is arranged on the axial surface of the second rotating shaft (42); the torsion spring (44) is sleeved on the second rotating shaft (42) and is used to maintain the clamping plate (43) in a state of pressing against the bottom of the clamping groove (411).

3. The suction device for a drug testing center according to claim 2, characterized in that: A pressing plate (45) is provided on the side wall of the second rotating shaft (42); the pressing plate (45) and the clamping plate (43) are respectively located on both sides of the second rotating shaft (42) in a horizontal direction; the pressing plate (45) is arranged to be inclined in a direction away from the base (41) and away from the second rotating shaft (42).

4. The suction device for a drug testing center according to claim 2, characterized in that: A clamping tooth (431) is provided on one side of the clamping plate (43) facing the clamping groove (411).

5. The suction device for a drug testing center according to claim 1, characterized in that: A protective shell (2) is provided on the outer side wall of the connecting ring (12); the first rotating shaft (21) is coaxially rotatably connected inside the protective shell (2); and a through hole (23) for the elastic band (22) to pass through is provided on the side wall of the protective shell (2).

6. The suction device for a drug testing center according to claim 5, characterized in that: A handle (24) is rotatably connected to the outer wall of the protective shell (2), and the handle (24) is coaxially connected to the first rotating shaft (21).

7. The suction device for a drug testing center according to claim 5, characterized in that: The fixing member (3) comprises a fixing rod (31) and a clamping block (32); the fixing rod (31) is rotatably connected to the protective shell (2); the clamping block (32) is on the outer wall of the protective shell (2); a clamping groove (33) for clamping the clamping block (32) is provided on the fixing rod (31); when the clamping block (32) is clamped into the clamping groove (33), the fixing rod (31) is pressed against the elastic band (22).

8. The suction device for a drug testing center according to claim 5, characterized in that: A first connecting plate (121) is provided on the outer wall of the connecting ring (12), a second connecting plate (25) is provided on the outer wall of the protective shell (2), a bolt (122) is rotatably connected to the first connecting plate (121), the bolt (122) passing through the first connecting plate (121) and being threadedly connected to the second connecting plate (25).

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