Laboratory ventilation and purification control device

Abstract

The utility model discloses a laboratory ventilation and purification control device, which relates to the technical field of laboratory ventilation and comprises an installation box, a backflow mechanism is arranged in the installation box and used for enabling air to flow back into a purification box to be purified for multiple times when the purification effect of the purification box is reduced, so that the air reaches the discharge standard. The backflow mechanism comprises an air suction unit; an adjusting unit; the driving unit and the fan operate to suck air purified by the purification box into the detection pipe, the air quality is detected through the gas detection probe, when the air quality does not reach the standard, the driving unit drives the gear ring to rotate by 180 degrees, and the gear ring drives the rotating pipe and the channel disc to rotate synchronously, so that the through hole is connected with a right side channel of the double-channel pipe; and the air flows back into the purification box through the double-channel pipe and the return pipe to be purified again, so that the situation that poor-quality air is discharged, and the quality of the environment in the laboratory is reduced is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to laboratory ventilation technical field, concretely is a laboratory ventilation purification control device. BACKGROUND

[0002] Laboratory refers to the place of experiment, and in some universities, national institutions and industrial enterprise departments, will be equipped with laboratory.

[0003] According to patent name: a laboratory ventilation purification control device (patent publication number: CN216965727U, patent publication date: July 15, 2022), including purification control box, the inside fixed mounting of purification control box has purification box, the one side of purification control box is equipped with the notch, the both sides of the left side surface of purification control box are fixedly installed with support rod, the surface of two support rods is movably sleeved with two second sliding sleeves, four second sliding sleeves are fixedly installed with suction hood between, one end of two support rods is fixedly installed with mounting plate, the middle position of the right side upper portion of mounting plate is fixedly installed with positioning rod, one end of positioning rod is fixedly connected with the left side of purification control box, the surface of positioning rod is movably sleeved with a plurality of third sliding sleeves. With the characteristics that the ventilation purification effect of ventilation equipment can be improved, and the position of the air inlet of ventilation equipment can be controlled and adjusted.

[0004] And based on the above prior art, the existing laboratory ventilation purification control device still has the following problems, the purification effect of the internal purification box of the existing laboratory ventilation purification control device will decrease when being used for a long time, however, the laboratory personnel is difficult to find, thereby causing the ventilation purification effect to decrease and the laboratory internal environment quality to decrease, therefore, the utility model provides a laboratory ventilation purification control device. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a laboratory ventilation purification control device, which solves the problems of the existing laboratory ventilation purification control device, the purification effect of the internal purification box of the existing laboratory ventilation purification control device will decrease when being used for a long time, however, the laboratory personnel is difficult to find, thereby causing the ventilation purification effect to decrease and the laboratory internal environment quality to decrease.

[0006] In order to achieve the above object, the utility model discloses a laboratory ventilation purification control device, a laboratory ventilation purification control device, including the installation box, the inside fixed mounting of installation box has the purification box, and the top fixed mounting of purification box has the hose, the one end of hose penetrates the fixed column of installation box and has the air suction cover, the bottom fixed mounting of installation box has the control panel, the inside setting of installation box has the backflow mechanism for realizing the purification effect of purification box drops and makes the air backflow to the inside purification of purification box and carries out multiple purification, makes it air reach the discharge standard, and the backflow mechanism includes:

[0007] Air suction unit, set up in the inside of installation box, and be used for absorbing the air in the laboratory;

[0008] Adjusting unit, set up in the inside of air suction unit, including the pipe, the inside fixed mounting of pipe has the channel disc, and the inside of channel disc starts to open has the through -hole, the outside fixed mounting of pipe has the gear ring, and the rotation of gear ring realizes the rotation of pipe and channel disc for controlling the discharge and backflow of air;

[0009] Driving unit, set up in the inside of air suction unit, and be used for driving gear ring one hundred and eighty degrees rotation and carries out the location.

[0010] Preferably, the bottom end inside rotation of pipe is installed with detection pipe, one side fixed mounting of detection pipe has gas detection probe, the top end inside rotation of pipe is installed with double channel pipe, and the top end fixed mounting of double channel pipe has the air outlet pipe and backflow pipe, and the left channel in the inside of air outlet pipe and double channel pipe is connected, and the right channel in the inside of backflow pipe and double channel pipe is connected, the top end of air outlet pipe penetrates fixed box top plate, one end of backflow pipe is connected with the top of purification box, and two rectangular grooves are symmetrically set up in the top of gear ring.

[0011] Preferably, the air suction unit includes a mounting frame fixedly installed on the rear side of the inner cavity of the installation box, a fixed box is fixedly installed on the top of the mounting frame, and the double channel pipe is rotatably installed in the inner cavity of the top plate of the fixed box, a connecting flange is fixedly installed in the inner bottom plate of the fixed box, and a fan is fixedly installed on the bottom end of the connecting flange penetrating through the fixed box, an air inlet pipe is fixedly installed on the bottom end of the fan, and the top of the air inlet pipe is fixedly connected with the top of the purification box.

[0012] Preferably, the driving unit includes a fixed frame fixedly installed on the rear side of the inner cavity of the fixed box, a motor is fixedly installed on the bottom of the fixed frame, a half-face gear is fixedly installed on the output end of the motor penetrating through the fixed frame, the tooth surface of the half-face gear is engaged with the gear ring, and an arc-shaped inclined strip is fixedly installed on the top of the half-face gear.

[0013] Preferably, the top plate of the fixing frame is provided with a rectangular slide column which is slidably installed through the top plate, the bottom end of the rectangular slide column is fixedly provided with a connecting rod, the outer part of the rectangular slide column is sleeved with a spring, the bottom of one end of the connecting rod is fixedly provided with a rectangular plug, and the bottom of the connecting rod is in contact with the inclined surface of the arc-shaped inclined strip to realize the rising of the connecting rod.

[0014] Preferably, the rectangular plug is slidably inserted into the inside of the rectangular slot to fix the position of the gear ring.

[0015] The utility model provides a laboratory ventilation purification control device, has the following beneficial effects compared with prior art:

[0016] (1), the laboratory ventilation purification control device, fan operation inhales the air after the purification tank purification to the inside of detection pipe, detects the air quality through the gas detection probe, when the air quality is unqualified, driving unit drives gear ring one hundred and eighty degrees rotation, gear ring drives rotary tube and passageway disc synchronous rotation, makes the through -hole and double -channel pipe right side passageway connection, makes the air pass through double -channel pipe and backflow pipe backflow to the inside of purification tank and purifies again, thereby avoids the air of poor quality to discharge, causes the laboratory internal environment quality to drop.

[0017] (2), the laboratory ventilation purification control device, motor rotation drives half face gear and arc-shaped inclined strip rotation, half face gear toothless surface rotates on the surface of gear ring and does not drive gear ring rotation, simultaneously, the inclined edge of arc-shaped inclined strip inserts the bottom of connecting rod, and the connecting rod rises and extrudes the spring along the inclined surface of arc-shaped inclined strip, at this time, the rectangular plug is pulled out from the inside of rectangular slot, then the tooth surface of half face gear meshes with gear ring and drives gear ring rotation, when gear ring does not rotate to one hundred and eighty degrees, the connecting rod is separated from the top of arc-shaped inclined strip, the spring pushes the connecting rod through the elastic force of itself, makes the rectangular plug slide on the top of gear ring, when half face gear drives gear ring to rotate one hundred and eighty degrees, the rectangular plug is inserted into the inside of the rectangular slot of the other side, thereby realizes the positioning of gear ring after rotating one hundred and eighty degrees, avoids the position deviation of gear ring. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is right view solid structure figure of the utility model;

[0019] Figure 2 It is partial sectional view solid structure figure of the utility model;

[0020] Figure 3 It is backflow mechanism sectional view solid structure figure of the utility model;

[0021] Figure 4 It is backflow mechanism partial sectional view solid structure figure of the utility model;

[0022] Figure 5 It is the backflow mechanism of the utility model; Figure 4The enlarged perspective view of the middle A.

[0023] In the figure: 1-mounting box, 2-backflow mechanism, 21-air suction unit, 211-mounting frame, 212-fixing box, 213-connection flange, 214-fan, 215-air inlet pipe, 22-regulating unit, 221-detection pipe, 222-gas detection probe, 223-rotary pipe, 224-passageway disc, 225-through hole, 226-tooth ring, 227-rectangular groove, 228-air outlet pipe, 229-backflow pipe, 2210-double passageway pipe, 23-driving unit, 231-fixing frame, 232-motor, 233-half-face gear, 234-arc-shaped inclined strip, 235-rectangular slide column, 236-spring, 237-connection rod, 238-rectangular insertion block, 3-hose, 4-air suction cover, 5-control panel, 6-purification box. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0026] A laboratory ventilation and purification control device, including mounting box 1, the inside fixed mounting of mounting box 1 has purification box 6, and the top of purification box 6 is fixedly installed with hose 3, and one end of hose 3 penetrates the fixed column of mounting box 1 and has air suction cover 4, and the bottom of mounting box 1 is fixedly installed with control panel 5, and the inside of mounting box 1 is provided with backflow mechanism 2 for realizing the multiple purification of air backflow to the inside of purification box when the purification effect of purification box drops, so that the air reaches the discharge standard, and backflow mechanism 2 includes:

[0027] Air suction unit 21 is arranged in the inside of mounting box 1 and is used for absorbing the air in the laboratory;

[0028] Regulating unit 22 is arranged in the inside of air suction unit 21 and includes rotary pipe 223, the inside of rotary pipe 223 is fixedly installed with passageway disc 224, and the inside of passageway disc 224 is provided with through hole 225 from the beginning, the outside of rotary pipe 223 is fixedly installed with tooth ring 226, and the rotation of tooth ring 226 realizes the rotation of rotary pipe 223 and passageway disc 224 for controlling the discharge and backflow of air;

[0029] Driving unit 23 is arranged in the inside of air suction unit 21 and is used for driving tooth ring 226 to rotate one hundred and eighty degrees and limiting tooth ring 226.

[0030] In the embodiment, the bottom end of the rotating pipe 223 is internally rotatably installed with a detection pipe 221, one side of the detection pipe 221 is fixedly installed with a gas detection probe 222, the top end of the rotating pipe 223 is internally rotatably installed with a double-channel pipe 2210, and the top end of the double-channel pipe 2210 is fixedly installed with an air outlet pipe 228 and a backflow pipe 229, the air outlet pipe 228 is connected with the left channel inside the double-channel pipe 2210, the backflow pipe 229 is connected with the right channel inside the double-channel pipe 2210, the top end of the air outlet pipe 228 penetrates through the top plate of the fixed box 212, one end of the backflow pipe 229 is connected with the top of the purification box 6, and the top of the gear ring 226 is symmetrically provided with two rectangular grooves 227.

[0031] The model of the purification box 6 is JHB-15CZ, the model of the gas detection probe 222 is RS-PM-2HFL, the air purified by the operation of the fan 214 of the purification box 6 is sucked into the inside of the detection pipe 221, the air quality is detected by the gas detection probe 222, when the air quality is not up to standard, the gear ring 226 is driven by the driving unit 23 to rotate by one hundred and eighty degrees, the rotating pipe 223 and the channel disc 224 are synchronously rotated by the gear ring 226, the through hole 225 is connected with the right channel of the double-channel pipe 2210, the air is backflowed to the inside of the purification box 6 through the double-channel pipe 2210 and the backflow pipe 229 for re-purification, so as to avoid the poor quality air being discharged to cause the laboratory internal environment quality to be reduced.

[0032] In the embodiment, the air suction unit 21 includes a mounting frame 211 fixedly installed at the back side of the inner cavity of the mounting box 1, the top of the mounting frame 211 is fixedly installed with a fixed box 212, the double-channel pipe 2210 is rotatably installed inside the top plate of the fixed box 212, the bottom plate of the fixed box 212 is fixedly installed with a connecting flange 213, the bottom end of the connecting flange 213 is fixedly installed with a fan 214 penetrating through the fixed box 212, the bottom end of the fan 214 is fixedly installed with an air inlet pipe 215, and the air inlet pipe 215 is fixedly connected with the top of the purification box 6.

[0033] The fan 214 is PT071M, is electrically connected with an external power supply, and is opened and closed by a personnel control panel, the fan 214 is operated, the air is introduced into the hose 3 through the air suction cover 4, and is introduced into the inside of the purification box 6 for purification, the purified air is introduced into the inside of the detection pipe 221 for detection by the gas detection probe 222, when the air quality is up to standard, the air is introduced into the inside of the rotating pipe 223 through the left channel of the double-channel pipe 2210, and is discharged into the inside of the air outlet pipe 228, when the air quality is not up to standard, the rotating pipe 223 and the channel disc 224 are rotated by one hundred and eighty degrees by the driving unit 23, the rotating pipe 223 and the channel disc 224 are synchronously rotated by the gear ring 226, the through hole 225 is connected with the right channel of the double-channel pipe 2210, the air is backflowed to the inside of the purification box 6 through the double-channel pipe 2210 and the backflow pipe 229 for re-purification.

[0034] In the embodiment, the driving unit 23 comprises a fixed frame 231 fixedly installed at the rear side of the inner cavity of the fixed box 212, the bottom of the fixed frame 231 is fixedly installed with a motor 232, the output end of the motor 232 is fixedly installed with a half-face gear 233 penetrating through the fixed frame 231, the tooth surface of the half-face gear 233 is engaged with the tooth ring 226, and the top of the half-face gear 233 is fixedly installed with an arc-shaped inclined strip 234.

[0035] The model of the motor 232 is KV3SF-8521F-WR, which is electrically connected with an external power supply and is opened and closed through the operation of a control panel by a person, the motor 232 drives the half-face gear 233 and the arc-shaped inclined strip 234 to rotate, the toothless surface of the half-face gear 233 rotates on the surface of the tooth ring 226 without driving the tooth ring 226 to rotate, the tooth surface of the half-face gear 233 is engaged with the tooth ring 226 to drive the tooth ring 226 to rotate, so as to realize the rotation of the tooth ring 226, the rotating pipe 223 and the channel disc 224 by one hundred and eighty degrees.

[0036] In the embodiment, the top plate of the fixed frame 231 is slidingly installed with a rectangular slide post 235 penetrating through, the bottom end of the rectangular slide post 235 is fixedly installed with a connecting rod 237, the outside of the rectangular slide post 235 is sleeved with a spring 236, the bottom of one end of the connecting rod 237 is fixedly installed with a rectangular insertion block 238, the bottom of the connecting rod 237 is in contact with the inclined surface of the arc-shaped inclined strip 234 to realize the rising of the connecting rod 237, the rectangular insertion block 238 is slidingly inserted into the inside of the rectangular slot 227, and the position of the tooth ring 226 is fixed.

[0037] The toothless surface of the half-face gear 233 rotates on the surface of the tooth ring 226 without driving the tooth ring 226 to rotate, at the same time, the inclined edge of the arc-shaped inclined strip 234 is inserted into the bottom of the connecting rod 237, the connecting rod 237 is extruded with the spring 236 along with the rising of the inclined surface of the arc-shaped inclined strip 234, at this time, the rectangular insertion block 238 is pulled out of the inside of the rectangular slot 227, then the tooth surface of the half-face gear 233 is engaged with the tooth ring 226 to drive the tooth ring 226 to rotate, when the tooth ring 226 is not rotated by one hundred and eighty degrees, the connecting rod 237 is separated from the top of the arc-shaped inclined strip 234, the spring 236 pushes the connecting rod 237 through the elastic force of itself, so that the rectangular insertion block 238 slides on the top of the tooth ring 226, when the tooth ring 226 is rotated by one hundred and eighty degrees by the half-face gear 233, the rectangular insertion block 238 is inserted into the inside of the rectangular slot 227 on the other side, so that the tooth ring 226 is positioned after being rotated by one hundred and eighty degrees.

[0038] Meanwhile, the contents not described in detail in the specification all belong to the existing technology known by the person skilled in the art.

[0039] In operation, firstly, the fan 214 operates to guide air into the inside of the hose 3 through the air suction cover 4, and into the inside of the purification box 6 for purification, and the purified air enters the inside of the detection tube 221 to be detected by the gas detection probe 222, and when the air quality reaches the standard, the air enters the inside of the rotary tube 223 to enter the inside of the air outlet pipe 228 through the left channel of the double-channel pipe 2210 and is discharged;

[0040] Then, the purified air in the purification box 6 is sucked into the inside of the detection tube 221, and the air quality is detected by the gas detection probe 222, and when the air quality does not reach the standard, the motor 232 rotates to drive the half-face gear 233 and the arc-shaped inclined strip 234 to rotate, the toothless surface of the half-face gear 233 rotates on the surface of the tooth ring 226 without driving the tooth ring 226 to rotate, and at the same time, the inclined edge of the arc-shaped inclined strip 234 is inserted into the bottom of the connecting rod 237, the connecting rod 237 is pressed and squeezed by the inclined surface of the arc-shaped inclined strip 234, at this time, the rectangular plug 238 is pulled out of the inside of the rectangular groove 227, and then the tooth surface of the half-face gear 233 meshes with the tooth ring 226 to drive the tooth ring 226 to rotate, when the tooth ring 226 does not rotate to one hundred and eighty degrees, the connecting rod 237 is separated from the top of the arc-shaped inclined strip 234, the spring 236 pushes the connecting rod 237 by its elastic force, the rectangular plug 238 slides on the top of the tooth ring 226, and when the half-face gear 233 drives the tooth ring 226 to rotate one hundred and eighty degrees, the rectangular plug 238 is inserted into the inside of the rectangular groove 227 on the other side, so that the tooth ring 226 is positioned after rotating one hundred and eighty degrees, the through hole 225 is connected with the right channel of the double-channel pipe 2210, and the air is returned to the inside of the purification box 6 through the double-channel pipe 2210 and the return pipe 229 for purification again.

[0041] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A laboratory ventilation and purification control device, comprising an installation box (1), a purification box (6) fixedly installed inside the installation box (1), a hose (3) fixedly installed on the top of the purification box (6), one end of the hose (3) passing through the installation box (1) fixed column with an air hood (4), and a control panel (5) fixedly installed at the bottom of the installation box (1), characterized in that: The installation box (1) is provided with a reflux mechanism (2) for returning air to the purification box for multiple purifications when the purification effect of the purification box decreases, so that the air reaches the discharge standard. The reflux mechanism (2) includes: An air suction unit (21) is arranged inside the installation box (1) and is used to absorb air in the laboratory; The regulating unit (22) is arranged inside the air intake unit (21), and comprises a rotating pipe (223). A channel disc (224) is fixedly installed inside the rotating pipe (223), and a through hole (225) is opened inside the channel disc (224). A gear ring (226) is fixedly installed outside the rotating pipe (223). The gear ring (226) rotates to realize the rotation of the rotating pipe (223) and the channel disc (224) to control the discharge and return of air. The driving unit (23) is arranged inside the air suction unit (21) and is used to drive the gear ring (226) to rotate 180 degrees and limit the gear ring (226).

2. A laboratory ventilation and purification control device according to claim 1, characterized in that: A detection tube (221) is rotatably mounted inside the bottom end of the rotating tube (223), a gas detection probe (222) is fixedly mounted on one side of the detection tube (221), a dual-channel tube (2210) is rotatably mounted inside the top end of the rotating tube (223), and an outlet pipe (228) and a return pipe (229) are fixedly mounted on the top end of the dual-channel tube (2210), the outlet pipe (228) is connected to the left channel inside the dual-channel tube (2210), and the return pipe (229) is connected to the right channel inside the dual-channel tube (2210), the top end of the outlet pipe (228) passes through the top plate of the fixed box (212), one end of the return pipe (229) is connected to the top of the purification box (6), and two rectangular grooves (227) are symmetrically provided on the top of the gear ring (226).

3. A laboratory ventilation and purification control device according to claim 2, characterized in that: The air suction unit (21) comprises a mounting frame (211) fixedly mounted on the rear side of the inner cavity of the mounting box (1); a fixed box (212) is fixedly mounted on the top of the mounting frame (211); and a dual-channel pipe (2210) is rotatably mounted inside the top plate of the fixed box (212); a connecting flange (213) is fixedly mounted inside the bottom plate of the fixed box (212); and a fan (214) is fixedly mounted on the bottom end of the connecting flange (213) passing through the fixed box (212); an air intake pipe (215) is fixedly mounted on the bottom end of the fan (214), and the air intake pipe (215) is fixedly connected to the top of the purification box (6).

4. A laboratory ventilation and purification control device according to claim 3, characterized in that: The driving unit (23) comprises a fixing frame (231) fixedly mounted on the rear side of the inner cavity of the fixing box (212); a motor (232) is fixedly mounted on the bottom of the fixing frame (231); an output end of the motor (232) passes through the fixing frame (231) and is fixedly mounted with a half-face gear (233); the tooth surface of the half-face gear (233) is meshed with the gear ring (226); and an arc-shaped bevel bar (234) is fixedly mounted on the top of the half-face gear (233).

5. A laboratory ventilation and purification control device according to claim 4, characterized in that: A rectangular sliding column (235) is slidably installed through the top plate of the fixing frame (231), a connecting rod (237) is fixedly installed at the bottom end of the rectangular sliding column (235), a spring (236) is sleeved on the outside of the rectangular sliding column (235), a rectangular plug (238) is fixedly installed at the bottom end of one end of the connecting rod (237), and the bottom of the connecting rod (237) contacts the inclined surface of the arc-shaped inclined strip (234) to realize the rising of the connecting rod (237).

6. A laboratory ventilation and purification control device according to claim 5, characterized in that: The rectangular insert (238) is slidably inserted into the interior of the rectangular groove (227) to fix the position of the gear ring (226).

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