Hoisting type laboratory ventilation device

Abstract

The utility model relates to the field of laboratory ventilation, in particular to a hoisting type laboratory ventilation device which comprises a hoisting top and a ventilator, the ventilator is installed on the upper end face of the hoisting top, an air outlet pipe is installed on the upper end face of the ventilator, an air inlet pipe is installed at the bottom of the ventilator, and an end is arranged below the air inlet pipe. A plurality of air inlet holes are formed in the outer side wall of the end in the circumferential direction of the end, a filter screen is arranged at the outer side ends of the air inlet holes, a sleeve is installed at the bottom of the end, a first bolt is rotatably installed on the inner side wall of the sleeve through threads, and a collecting box is installed at the bottom of the first bolt. And the isolated particulate matters are prevented from entering the air inlet pipe to damage the ventilator, and the isolated particulate matters are collected and treated by the collecting box and are prevented from falling onto the ground to cause inconvenience to later cleaning.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of laboratory ventilation, specifically relates to a hoisting type laboratory ventilation device. BACKGROUND

[0002] Chinese patent discloses a hoisting type laboratory ventilation device (authorized announcement number CN 221724511 U), the patent technology can solve the problem that the experiment table cannot be aligned with the air suction pipe or slightly deviates and easily affects the ventilation effect, secondly, when sucking air, directly sucking air to the upper side, and the air suction pipe is small, which easily causes harmful gas to escape and flow to other positions.

[0003] In the patent, the air inlet pipe is easy to suck external particulate matter, thereby causing damage to the ventilator, lacks a screening structure, and lacks a collection structure for particulate matter, and the particulate matter still scatters on the laboratory floor, causing inconvenience to the later cleaning. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a hoisting type laboratory ventilation device, which comprises a hoisting top and a ventilator, the hoisting top is provided with the ventilator on the upper end face, the ventilator is provided with an air outlet pipe on the upper end face, the ventilator is provided with an air inlet pipe at the bottom, an end head is arranged below the air inlet pipe, a plurality of air inlet holes are formed in the outer side wall of the end head along the circumferential direction, a filter screen is arranged at the outer side end of the air inlet hole, a sleeve is installed at the bottom of the end head, a first bolt is rotatably installed on the inner side wall of the sleeve through screwing, and a collection box is installed at the bottom of the first bolt.

[0005] Preferably, the inner side wall of the air inlet pipe is provided with an inner tube through sliding fit, the inner tube is provided with an end head at the bottom, the hoisting top is provided with an electric push rod at the bottom, the output end of the electric push rod is provided with a right bracket, the other end of the right bracket is installed on the outer side wall of the inner tube, the left end of the outer side wall of the inner tube is provided with a left bracket, the other end of the left bracket is provided with a sliding plate, the outer side wall of the sliding plate is provided with a top sleeve, and the top sleeve is installed at the bottom of the hoisting top.

[0006] Preferably, the upper end face of the end head is provided with a fixing sleeve, the outer side wall of the fixing sleeve is connected with the inner side wall of the filter screen through screwing, the upper end face of the filter screen is provided with an upper ring plate, a plurality of L-shaped plates are rotatably installed on the outer side wall of the upper ring plate through pin shafts along the circumferential direction, and the bottom of the L-shaped plate is provided with a first spring.

[0007] Preferably, the inner side wall of the collection box is provided with a first ring plate, a second ring plate is arranged below the first ring plate, the second ring plate is installed on the outer side wall of the sleeve, and the first ring plate and the second ring plate are both arranged obliquely.

[0008] The utility model has the following technical effects and advantages:

[0009] 1. The utility model discloses a filter screen structure, the filter screen plays the role of hindering the particulate matter inhaled, avoids its into the air inlet pipe to cause damage to the ventilator, and the collection box collects and processes the isolated particulate matter, avoids its falling to the ground, causes the inconvenience of later cleaning.

[0010] 2. The utility model discloses a L type board and first spring structure, and the L type board in the inside removal overturn is beaten to the filter screen surface, thereby beating the dust adhered to the filter screen surface, avoids long time its to filter screen hole cause the block, influences the ventilation effect. DRAWINGS

[0011] Figure 1 It is a kind of laboratory ventilation device structure main view of hoisting that the embodiment provides;

[0012] Figure 2 It is a kind of laboratory ventilation device sectional view main view of hoisting that the embodiment provides;

[0013] Figure 3 It is a kind of laboratory ventilation device of hoisting that the embodiment provides Figure 2 Local enlarged view of area A in it;

[0014] Figure 4 It is a kind of laboratory ventilation device of hoisting that the embodiment provides Figure 2 Local enlarged view of area B in it;

[0015] Figure 5 It is a kind of laboratory ventilation device of hoisting that the embodiment provides Figure 2 Local enlarged view of area C in it;

[0016] In the drawing: 1, hoist top; 2, ventilator; 11, air inlet pipe; 12, air inlet hole; 13, filter screen; 14, first bolt; 15, collection box; 16, inner tube; 17, electric push rod; 18, left position frame; 19, fixed sleeve; 21, L type board; 22, first spring; 23, first ring plate; 24, second ring plate. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiment. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and enable those skilled in the art to understand the utility model to design various embodiments with various modifications suitable for specific purposes.

[0018] Please refer toFigures 1-5 In this embodiment, a lifting laboratory ventilation device is provided, comprising a lifting roof 1 and a ventilator 2, the ventilator 2 is installed on the upper end face of the lifting roof 1, the ventilator 2 is installed on the upper end face of the ventilator 2, the ventilator 2 is installed on the bottom of the ventilator 2, the inlet pipe 11 is arranged below the end head, the outer side wall of the end head is provided with a plurality of air inlet holes 12 along the circumferential direction, the outer side of the air inlet hole 12 is arranged with a filter screen 13, the bottom of the end head is installed with a sleeve, the inner side wall of the sleeve is installed with a first bolt 14 through thread rotation, the bottom of the first bolt 14 is installed with a collection box 15, during operation, the ventilator 2 is started, the harmful gas in the laboratory enters the inlet pipe through the air inlet hole 12, then the toxic gas is discharged through the outlet pipe, the filter screen 13 hinders the inhaled particulate matter, avoids its entering into the inlet pipe 11 to cause damage to the ventilator 2, the collection box 15 collects and processes the isolated particulate matter, avoids its falling to the ground to cause inconvenience to the later cleaning, the first bolt 14 structure is adopted, which is convenient for disassembling and cleaning the collection box 15.

[0019] The inner tube 16 is installed in the inner wall of the inlet pipe 11 by sliding fit, the end head 1 is installed at the bottom of the electric push rod 17, the output end of the electric push rod 17 is installed with a right bracket, the other end of the right bracket is installed on the outer side wall of the inner tube 16, the outer side wall of the inner tube 16 is installed with a left bracket 18 at the left end, the other end of the left bracket 18 is installed with a sliding plate, the outer side wall of the sliding plate is installed with a top sleeve, the top sleeve is installed at the bottom of the lifting roof 1, during operation, the electric push rod 17 is started, driving the inner tube 16 to move up and down, so that the air suction treatment of each height inside the laboratory can be realized, further improving the ventilation effect inside the laboratory, the left bracket 18 supports the inner tube 16, ensuring the stability of the up and down movement of the inner tube 16.

[0020] The end head is installed with a fixed sleeve 19 on the upper end face, the outer side wall of the fixed sleeve 19 is connected with the inner side wall of the filter screen 13 through thread rotation, the filter screen 13 is installed with an upper ring plate on the upper end face, the outer side wall of the upper ring plate is installed with a plurality of L-shaped plates 21 through pin shaft rotation along the circumferential direction, the bottom of the L-shaped plate 21 is installed with a first spring 22, during operation, the first spring 22 expands the L-shaped plate 21, when the ventilator 2 works, the L-shaped plate 21 is driven to move inward and overturn to pat the surface of the filter screen 13, so as to pat the dust attached to the surface of the filter screen 13, avoiding the long time blockage of the filter screen 13 hole, affecting the ventilation effect.

[0021] The first ring plate 23 is arranged on the inner wall of the collecting box 15, and the second ring plate 24 is arranged below the first ring plate 23 and is mounted on the outer wall of the sleeve. The first ring plate 23 and the second ring plate 24 are both arranged in an inclined manner. During operation, the particles slide down to the second ring plate 24 through the first ring plate 23, and then roll into the collecting box 15 through the second ring plate 24. The first ring plate 23 and the second ring plate 24 hinder the particles, so that the particles are not sucked up by the ventilator 2 under the action of the wind force, and the collecting function of the particles is not lost.

[0022] During operation, the ventilator 2 is started, and the harmful gas in the laboratory enters into the air inlet pipe through the air inlet hole 12, and then the toxic gas is discharged through the air outlet pipe. The filter screen 13 hinders the particles sucked in, so that the particles are prevented from entering into the air inlet pipe 11 and damaging the ventilator 2. The collecting box 15 collects and processes the isolated particles, so that the particles are prevented from falling on the ground and causing inconvenience for later cleaning.

[0023] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A suspended laboratory ventilation unit comprising a suspended ceiling (1) and a ventilator (2), characterized in that, The upper end face of the lifting roof (1) is provided with a ventilator (2), the upper end face of the ventilator (2) is provided with an air outlet pipe, the bottom of the ventilator (2) is provided with an air inlet pipe (11), the lower part of the air inlet pipe (11) is provided with a head, a plurality of air inlet holes (12) are formed in the outer side wall of the head along the circumferential direction, a filter screen (13) is arranged at the outer side end of the air inlet hole (12), a sleeve is arranged at the bottom of the head, a first bolt (14) is rotatably arranged on the inner side wall of the sleeve through screw thread, and a collecting box (15) is arranged at the bottom of the first bolt (14).

2. A fume hood for a mobile laboratory according to claim 1, wherein, The inner side wall of the air inlet pipe (11) is provided with an inner tube (16) through sliding fit, the bottom of the inner tube (16) is provided with a head, the bottom of the lifting roof (1) is provided with an electric push rod (17), the output end of the electric push rod (17) is provided with a right bracket, and the other end of the right bracket is arranged on the outer side wall of the inner tube (16).

3. A fume hood according to claim 2, wherein, The left end of the outer side wall of the inner tube (16) is provided with a left bracket (18), the other end of the left bracket (18) is provided with a sliding plate, the outer side wall of the sliding plate is provided with a top sleeve, and the top sleeve is arranged on the bottom of the lifting roof (1).

4. A fume hood according to claim 3, wherein, The upper end face of the head is provided with a fixing sleeve (19), and the outer side wall of the fixing sleeve (19) is connected with the inner side wall of the filter screen (13) through screw thread.

5. A fume hood according to claim 4, wherein, The upper end face of the filter screen (13) is provided with an upper ring plate, a plurality of L-shaped plates (21) are rotatably arranged on the outer side wall of the upper ring plate along the circumferential direction through pin shafts, and the bottom of the L-shaped plate (21) is provided with a first spring (22).

6. A fume hood according to claim 1, wherein, The inner side wall of the collecting box (15) is provided with a first ring plate (23), the lower part of the first ring plate (23) is provided with a second ring plate (24), the second ring plate (24) is arranged on the outer side wall of the sleeve, and the first ring plate (23) and the second ring plate (24) are both arranged in an inclined manner.

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