Anti-static ventilation anti-blocking structure for purifying laboratory

Abstract

The utility model relates to an anti-static ventilation anti-blocking structure for purifying a laboratory, which comprises a ceiling hanging bracket positioned in the laboratory, a flow collecting bin arranged above the ceiling hanging bracket, a screen arranged in the flow collecting bin, a suspension arm connected with the ceiling hanging bracket, a vertical through hole channel arranged in the suspension arm, a drainage pipe penetrating through the vertical through hole channel, and a drainage pipe arranged in the drainage pipe. The lower end of the drainage pipe is butted with an exhaust hood; compared with the prior art, the utility model has the beneficial effects that the horizontal extension arm which extends along the radial direction of the hanging scaffold and is horizontally arranged is arranged on the hanging scaffold, and the hanging scaffold is connected with the exhaust hood through the horizontal extension arm, so that the position of the exhaust hood can be adjusted by rotating the drainage pipe during use; in the process of adjusting the position of the exhaust hood, the dredging assembly does circular motion around the drainage pipe in the flow collecting bin, at the moment, the dredging assembly cleans the inner wall of the flow collecting bin and the screen located in the flow collecting bin, and the screen can be prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the laboratory purification technical field, and specifically relates to a kind of anti-static ventilation anti-blocking structure for purifying laboratory. BACKGROUND

[0002] Various harmful gases are often generated in laboratory during experiment, such as toxic gases generated by chemical reagents in chemical experiment, waste gas generated in biological experiment, etc. If these harmful gases cannot be discharged in time, the long-term exposure of experimenters to such environment will seriously threaten their health, and may cause respiratory diseases, poisoning and other problems.

[0003] A laboratory ventilation device is disclosed in the prior art, and the authorization announcement number is CN210362625U. It includes a suction device and a supply device arranged below the suction device. The suction device includes a suction head and an exhaust pipe arranged above the suction head. The exhaust pipe is provided with a suction unit for conveying the airflow in the exhaust pipe away from the suction head. The supply device includes a blower and a supply head arranged above the blower. The supply direction of the blower is towards the suction head to generate airflow flowing from the supply head to the suction head. The supply head includes a hollow outer plate and a mesh plate arranged in the hollow outer plate. The blower is turned on to generate airflow flowing towards the suction head. The suction unit is turned on to generate airflow flowing from the suction head to the exhaust pipe. Therefore, the waste gas generated during the experiment will be discharged from the exhaust pipe along with the flowing airflow.

[0004] However, when ventilating the laboratory by the above-mentioned scheme, the device needs to be cleaned regularly, otherwise the mesh plate may be blocked, which will affect the gas flow and cause adverse effects on the laboratory ventilation. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides an anti-static ventilation anti-blocking structure for purifying laboratory.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of an anti-static ventilation anti-blocking structure for purifying laboratory, which includes a ceiling hanger in the laboratory. A flow collection bin is arranged above the ceiling hanger. A screen is arranged in the flow collection bin. The ceiling hanger is connected with a hanging arm. A vertical through hole is arranged in the hanging arm. A drainage pipe is arranged in the vertical through hole. An exhaust hood is connected with the lower end of the drainage pipe. The upper end of the drainage pipe extends into the flow collection bin. A dredging assembly is arranged in the flow collection bin. When the exhaust hood moves in a circular motion around the central axis of the drainage pipe, the drainage pipe rotates and cleans the inner wall of the flow collection bin and the screen through the dredging assembly.

[0007] Further, the dredging assembly includes a ring body sleeved on the upper end of the drainage pipe, the ring body is connected with a dredging arm, the dredging arm is in contact with the inner wall of the collecting bin and the screen, and the dredging arm moves in a circumferential direction around the drainage pipe when the drainage pipe rotates.

[0008] Further, the dredging arm includes a bottom arm rod and an upper arm rod, both of which extend in the radial direction of the drainage pipe, and a pull arm is connected between the bottom arm rod and the upper arm rod.

[0009] Further, the collecting bin includes a bottom bin plate fixed on the ceiling hanger, a bin body is butted on the bottom bin plate, the opening of the bin body faces downward and is butted with the bottom bin plate, and an air outlet is arranged on the bin body.

[0010] Further, the ceiling hanger includes a center ring, and a plurality of hanger arms are fixed on the center ring.

[0011] Further, the exhaust hood is connected with the drainage pipe through a flow guide assembly, and the flow guide assembly is slidably connected with the lower end of the hanger arm.

[0012] Further, the flow guide assembly includes a hanger plate fixed on the lower end of the drainage pipe, an inner cavity is arranged in the hanger plate, the inner cavity is communicated with the drainage pipe, and the hanger plate is connected with the exhaust hood through a horizontal extension arm.

[0013] Further, the horizontal extension arm includes a positioning horizontal arm and a sliding horizontal arm, the positioning horizontal arm has a horizontal through hole, the sliding horizontal arm is inserted into the through hole of the positioning horizontal arm, and the exhaust hood is butted on the outer end of the positioning horizontal arm.

[0014] Compared with the prior art, the exhaust hood is connected with the drainage pipe through the flow guide assembly, the flow guide assembly includes the hanger plate fixed on the lower end of the drainage pipe, the horizontal extension arm extending in the radial direction of the hanger plate is arranged on the hanger plate, the hanger plate is connected with the exhaust hood through the horizontal extension arm, the position of the exhaust hood can be adjusted by rotating the drainage pipe during use, the dredging assembly is arranged in the collecting bin, the dredging assembly moves in a circumferential direction around the drainage pipe during the adjustment of the position of the exhaust hood, the inner wall of the collecting bin and the screen in the collecting bin are cleaned by the dredging assembly at this time, and the screen can be prevented from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a collecting bin structure schematic view of the utility model;

[0017] Figure 3 It is a hanger arm and collecting bin connection schematic view of the utility model;

[0018] Figure 4 It is a dredging assembly structure schematic view of the utility model;

[0019] Figure 5 It is the cross section structure schematic drawing of the hanging tray and the hanging arm connection of the utility model;

[0020] Figure 6 It is the cross section structure schematic drawing of the exhaust cover and the flat extension arm connection of the utility model;

[0021] Figure 7 It is the cross section structure schematic drawing of the exhaust cover and the flat extension arm connection of the utility model in another embodiment;

[0022] Wherein, 1 - center ring, 2 - hanging arm, 3 - current collection warehouse, 4 - bottom warehouse board, 5 - air inlet, 6 - warehouse body, 7 - air outlet, 8 - ventilation pipeline, 9 - induced draft fan, 10 - hanging arm, 11 - drainage pipe, 12 - exhaust cover, 13 - screen, 14 - hanging tray, 15 - protection cylinder, 16 - slide, 17 - slide bar, 18 - inner cavity, 19 - flat extension arm, 20 - positioning flat arm, 21 - sliding flat arm, 22 - hole, 23 - ring body, 24 - dredging arm, 25 - bottom arm rod, 26 - upper arm rod, 27 - pull arm, 28 - hanging warehouse, 29 - bearing, 30 - vertical cylinder, 31 - horizontal cylinder, 32 - arc transition cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described in the description of the utility model embodiments in combination with the drawings in the embodiments of the utility model, and it should be understood that the preferred embodiments described herein are only used for explaining and explaining the utility model, and are not used for limiting the utility model, and obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. The components of the utility model embodiments described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model. In the embodiments, the components of the embodiments of the application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application.

[0024] Reference Figures 1 to 6The anti-static ventilation anti-blocking structure for purifying laboratory shown in the figure, including the ceiling hanger in the laboratory, the ceiling hanger includes the center ring 1, a plurality of hangers 2 are fixed on the center ring 1, the top of the ceiling hanger is provided with a flow collection bin 3, the flow collection bin 3 includes a bottom bin plate 4, the center position of the bottom bin plate 4 is provided with an air inlet 5, the bottom bin plate 4 is fixed on the ceiling hanger, the bottom bin plate 4 is butted with a bin body 6, the opening of the bin body 6 is downward and butts with the bottom bin plate 4, the bin body 6 is provided with an air outlet 7, the air outlet 7 is connected with a air guide machine 9 through a ventilation pipeline 8, the air guide machine 9 is arranged outside the laboratory, and the ceiling hanger is connected with a hanger 10, the upper end of the hanger 10 is fixedly connected with the center ring 1 on the ceiling hanger, the hanger 10 is internally provided with a vertical through hole, the vertical through hole is penetrated by a drainage pipe 11, the upper end of the drainage pipe 11 is inserted into the air inlet on the bottom bin plate 4, at this time, the upper end of the drainage pipe 11 extends into the flow collection bin 3, the lower end of the drainage pipe 11 is butted with an exhaust hood 12, when the air guide machine 9 works, the gas in the laboratory can enter into the drainage pipe 11 through the exhaust hood 12, and then enter into the flow collection bin 3, a screen 13 is arranged in the flow collection bin 3, after the dust in the airflow is screened through the screen 13, the airflow is discharged through the ventilation pipeline 8, at this time, the ventilation pipeline 8 can be provided as a two-section butt joint structure, a filter can be installed between the two ventilation pipelines, and the filter is used for filtering harmful gas in the airflow.

[0025] The exhaust hood 12 is connected with the drainage pipe 11 through a flow guide assembly, the flow guide assembly is slidably connected with the lower end of the hanger 10, the flow guide assembly includes a hanging disc 14 fixed on the lower end of the drainage pipe 11, the hanging disc 14 is fixedly connected with the drainage pipe 11, a protection cylinder 15 is fixed on the hanging disc 14, the protection cylinder 15 is sleeved on the lower end of the hanger 10, an annular slide 16 is arranged on the outer wall of the lower end of the hanger 10, a plurality of slide rods 17 penetrate through the protection cylinder 15, the inner end of each slide rod 17 is located in the slide 16, at this time, the protection cylinder 15 can rotate, but it cannot be separated from the hanger 10, so as to realize the sliding connection with the hanger 10, a sealing gasket is further arranged on the inner wall of the protection cylinder 15, the sealing gasket is located between the protection cylinder 15 and the hanger 10, an inner cavity 18 is arranged in the hanging disc 14, a center hole is arranged in the center position of the upper surface of the hanging disc 14, so that the inner cavity 18 of the hanging disc 14 is communicated with the drainage pipe 11, a horizontal extension arm 19 extending in the radial direction of the hanging disc 14 is arranged on the hanging disc 14, and the hanging disc 14 is connected with the exhaust hood 12 through the horizontal extension arm 19, at this time, the position of the exhaust hood 12 can be controlled by rotating the hanging disc 14, so that the exhaust hood 12 can move to the area where waste gas is generated in the laboratory.

[0026] The flat extension arm 19 comprises a positioning flat arm 20 and a sliding flat arm 21, one end of the positioning flat arm 20 is butted against the circumferential surface of the hanging plate 14, the inner end of the positioning flat arm 20 is located in the inner cavity 18 of the hanging plate 14, the positioning flat arm 20 has a horizontal through hole 22, at this time, the through hole 22 is communicated with the inner cavity 18 of the hanging plate 14, the inner end of the sliding flat arm 21 is inserted into the through hole of the positioning flat arm 20, a sealing rubber ring is fixed on the sliding flat arm 21 near the inner end, when the sliding flat arm 21 slides in the through hole of the positioning flat arm 20, the sealing rubber ring also moves, the exhaust hood 12 can be installed at the outer end of the sliding flat arm 21, at this time, the opening of the exhaust hood 12 faces downward, when it is needed to expand the position where the exhaust hood 12 is located, the sliding flat arm 21 can be pulled to move the sliding flat arm 21 away from the hanging arm 10, which is equivalent to increasing the length of the flat extension arm 19, at this time, the flat extension arm 19 is controlled to rotate around the hanging arm 10, which can increase the range of the area where the exhaust hood 12 is located.

[0027] In order to avoid the blockage of the screen 13 in the collecting bin 3, a dredging assembly is arranged in the collecting bin 3, the dredging assembly is connected with the drainage pipe 11, when the drainage pipe 11 rotates, the exhaust hood 12 moves in a circular motion around the central axis of the drainage pipe 11, at this time, the dredging assembly moves in the collecting bin 3, at this time, the inner wall of the collecting bin 3 and the screen 13 are cleaned by the dredging assembly, the dredging assembly comprises a ring body 23 which is sleeved on the upper end of the drainage pipe 11, the ring body 23 is fixedly connected with the drainage pipe 11, the ring body 23 is connected with a dredging arm 24, the dredging arm 24 is in contact with the inner wall of the collecting bin 3, the dredging arm 24 comprises a bottom arm rod 25 and an upper arm rod 26, the bottom arm rod 25 is in contact with the bottom bin plate 4, and the upper arm rod 26 is in contact with the screen 13, both of which extend in the radial direction of the drainage pipe 11, a pull arm 27 is connected between the bottom arm rod 25 and the upper arm rod 26, the pull arm 27 is in contact with the inner circumferential surface of the bin body 6, when the drainage pipe 11 rotates, the dredging arm 24 moves in a circular motion around the drainage pipe 11, thereby realizing the cleaning of the inner wall of the collecting bin 3 and the screen.

[0028] Referring to Figure 7 As another embodiment of the utility model, as shown in the figure, on the basis of the above structure, a hanging bin 28 is fixed on the outer end of the sliding flat arm 21, the bottom surface of the hanging bin 28 is provided with an opening, the opening is provided with a bearing 29, the outer ring of the bearing 29 is fixed in the opening of the hanging bin 28, a bending cylinder is connected through the bearing 29, the bearing 29 is sleeved on the upper end of the bending cylinder, the inner wall of the bearing 29 is fixedly connected with the bending cylinder, the bending cylinder comprises a vertical cylinder 30 and a horizontal cylinder 31, an arc-shaped transition cylinder 32 is connected between the vertical cylinder 30 and the horizontal cylinder 31, the exhaust hood 12 is butted against the free end of the horizontal cylinder 31, at this time, not only the position of the exhaust hood 12 can be controlled by controlling the flat extension arm 19 to move around the hanging arm 10, but also the position of the exhaust hood 12 can be adjusted by the bending cylinder, so that the exhaust hood 12 has higher adjustable freedom and can be applied to a larger range.

[0029] In addition, each component of the current collecting bin, the dredging assembly, the boom, the drainage tube, the flat extension arm and the like in the present application that is in contact and moves to generate friction is made of polyethylene terephthalate, and since the material has high surface hardness and a surface resistance of 106Ω-108Ω, the device has good mechanical properties, chemical resistance and dimensional stability, and stable anti-static performance.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, it can be electrical connection, it can be hydraulic connection, it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A static electricity prevention ventilation anti-blocking structure for purifying a laboratory, comprising a ceiling hanger in the laboratory, characterized in that: The top ceiling hanger is provided with a collection bin, a screen is arranged in the collection bin, the top ceiling hanger is connected with a hanging arm, the hanging arm is internally provided with a vertical through hole, a drainage pipe is arranged in the vertical through hole, and a draught hood is connected to the lower end of the drainage pipe; The upper end of the drainage pipe extends into the collection bin, a dredging assembly is arranged in the collection bin, the dredging assembly is connected to the drainage pipe, when the draught hood moves in a circular manner around the central axis of the drainage pipe, the drainage pipe rotates and cleans the inner wall of the collection bin and the screen through the dredging assembly.

2. The anti-static ventilation anti-blocking structure for purifying laboratory according to claim 1, characterized in that: The dredging assembly comprises a ring body sleeved on the upper end of the drainage pipe, the ring body is connected with a dredging arm, the dredging arm is in contact with the inner wall of the collection bin and the screen, and when the drainage pipe rotates, the dredging arm moves in a circular manner around the drainage pipe.

3. The anti-static ventilation anti-blocking structure for purifying laboratory according to claim 2, characterized in that: The dredging arm comprises a bottom arm rod and an upper arm rod, both of which extend in the radial direction of the drainage pipe, and a pull arm is connected between the bottom arm rod and the upper arm rod.

4. The anti-static ventilation anti-blocking structure for purifying laboratory according to claim 1, characterized in that: The collection bin comprises a bottom bin plate, the bottom bin plate is fixed on the top ceiling hanger, a bin body is connected to the bottom bin plate, the opening of the bin body faces downward and is connected to the bottom bin plate, and an air outlet is arranged on the bin body.

5. The anti-static ventilation anti-blocking structure for purifying laboratory according to claim 1 or 4, characterized in that: The top ceiling hanger comprises a central ring, and a plurality of hanging arms are fixed on the central ring.

6. The anti-static ventilation anti-blocking structure for purifying laboratory according to claim 1, characterized in that: The draught hood is connected to the drainage pipe through a flow guide assembly, and the flow guide assembly is slidably connected to the lower end of the hanging arm.

7. The anti-static ventilation anti-blocking structure for purifying laboratory according to claim 6, characterized in that: The flow guide assembly comprises a hanging disc fixed on the lower end of the drainage pipe, an inner cavity is arranged in the hanging disc, the inner cavity is communicated with the drainage pipe, and the hanging disc is connected to the draught hood through a horizontal extension arm.

8. The anti-static ventilation anti-blocking structure for purifying laboratory according to claim 7, characterized in that: The horizontal extension arm comprises a positioning horizontal arm and a sliding horizontal arm, the positioning horizontal arm is provided with a horizontal through hole, the sliding horizontal arm is inserted into the through hole of the positioning horizontal arm, and the draught hood is connected to the outer end of the positioning horizontal arm.

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