CN211753610U

CN211753610U - Detachable paint spraying waste gas purifying and discharging device without dismounting tool

Info

Publication number: CN211753610U
Application number: CN202020186026.0U
Authority: CN
Inventors: 岳天玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-10-27
Anticipated expiration: 2030-02-19

Abstract

The utility model discloses a detachable paint spraying waste gas purifying and discharging device of a disassembly-free tool, which comprises a shell with one side open and one side closed; a detachable air inducing device is arranged above the closed side of the shell; the air inlet of the air inducing device is communicated with the air outlet of the shell; two ends of the diversion bottom plate of the shell are symmetrically fixed with a support frame respectively; a drawable water storage tank is arranged below the diversion bottom plate positioned at the opening side of the shell; the water inlet end of the water pump is communicated with the water storage tank, and a water curtain device is arranged in the shell; the opening side of the shell is provided with a detachable semi-closed backflow prevention device. The utility model has the advantages that the utility model is simple and convenient to install, the water replacement is more convenient, and the water resource is saved; the gas is prevented from being reflected and overflowing to the environment, and the environment is protected; the effect of purifying the waste gas is improved; the cleaning maintenance can be completely disassembled without tool disassembly, so that the cleaning maintenance can be conveniently carried out by an operator, and the working efficiency of the cleaning maintenance is improved.

Description

Detachable paint spraying waste gas purifying and discharging device without dismounting tool

The technical field is as follows:

the utility model relates to an environment-friendly device, in particular to detachable waste gas purification discharging equipment that sprays paint of dismantling-free instrument.

Background art:

in the model making, the paint spraying of machinery and parts is a conventional operation, the paint spraying can play roles of beautifying, corrosion prevention and the like, but because materials such as paint, printing ink and the like used in the paint spraying have certain toxicity, a large amount of toxic gases such as formaldehyde, benzene and the like and paint atomized particles can be released in the process of atomizing and spraying the materials, and the human health of operators is seriously influenced.

The application number of CN201820977309.X, paint spraying waste gas purification and discharge device, discloses a detachable paint spraying waste gas purification and discharge device which is small in size, convenient to move, good in sealing performance and capable of reducing secondary pollution and is free of a tool to be detached; however, the above-described device has the following problems: 1. In the using process, the water tank is also required to be connected with an external split water tank, so that the installation is complicated, the movement is inconvenient, and certain difficulty is caused in use; 2. when paint spraying is carried out, the generated waste gas can directly hit the water surface in the temporary water storage tank, so that the reflection of the waste gas is caused, the gas turbulence can be caused in the semi-closed backflow preventing device, the waste gas is easy to overflow into the environment, the environment is polluted, and the use effect is reduced; 3. fan, cascade guide plate and the semi-closed device of preventing backflowing on the device all are direct fixed connection with the frame, and the dismouting difficulty, the complicated difficulty of clearance maintenance, it is hard to waste time and energy, has reduced the work efficiency of clearance maintenance, simultaneously because some places can't clear up, very easily leads to secondary pollution.

The utility model has the following contents:

an object of the utility model is to provide an operation of being convenient for, waste water is changed conveniently, has improved exhaust-gas purification effect, and the detachable exhaust-gas purification discharging equipment that sprays paint of the dismantlement-free tool of the clean maintenance convenience of dismouting.

The utility model discloses by following technical scheme implement: the detachable paint spraying waste gas purifying and discharging device of the disassembly-free tool comprises a shell with one side opened and one side closed; a detachable air inducing device is arranged above the closed side of the shell; the air inlet of the air inducing device is communicated with the air outlet of the shell; two ends of the diversion bottom plate of the shell are symmetrically fixed with a support frame respectively; a drawable water storage tank is arranged below the diversion bottom plate positioned on the opening side of the shell, the water inlet end of the water pump is communicated with the inside of the water storage tank, and filter cotton is paved in the water storage tank; a water curtain device is arranged in the shell; a water inlet of an overflow groove of the water curtain device is communicated with a water outlet of the water pump through a pipeline; two ends of the bottom edge of a water curtain guide plate of the water curtain device are rotatably arranged on the shell; the two ends of the top edge of the water curtain guide plate are movably clamped with the shell through buckles respectively, and the buckles are preferably magnet buckles; a square filtering device is arranged between the water curtain guide plate and the closed side of the shell, one side of the filtering device is fixed on the shell, the other side of the filtering device is abutted against the water curtain guide plate, and an air outlet of the shell is positioned in the filtering device; and a detachable semi-closed backflow prevention device is arranged on the opening side of the shell.

Further, the flow guide bottom plate is gradually inclined downwards from the closed side of the shell to the open side of the shell; the diversion bottom plate positioned on the opening side of the shell and the lower part of the water curtain diversion plate form a horn shape; and a main air duct is formed between the diversion bottom plate and the water curtain diversion plate.

Furthermore, a water shielding plate is fixed in the shell above the water storage tank; and a water inlet channel is formed between the water shielding plate and the flow guide bottom plate.

Further, the water curtain device comprises the water curtain guide plate and the overflow groove; a secondary air channel is formed between the two side edges of the water curtain guide plate and the shell; the top of the water curtain guide plate is provided with the overflow groove, the bottom of the overflow groove is provided with a liquid discharge pipe, and the outlet end of the liquid discharge pipe is screwed with a blocking cover.

Furthermore, the side wall of the overflow groove provided with the water inlet is higher than the other side wall corresponding to the water inlet; the lower side wall of the overflow groove is fixedly connected with the top end of the water curtain guide plate.

Further, the induced draft device comprises an insulating fixing plate; an air suction device is fixed on the insulating fixing plate, an induced draft fan is preferably selected as the air suction device, and an air inlet of the air suction device is communicated with an air outlet of the shell; the shell on two sides of the insulating fixed plate is respectively provided with a sliding groove, and two side edges of the insulating fixed plate are respectively inserted into the two sliding grooves in a sliding manner.

Furthermore, the semi-closed backflow prevention device comprises a pair of vertically arranged closed doors and a foldable plate movably lapped on the top ends of the pair of closed doors, the closed doors and the foldable plate are combined to form the semi-closed backflow prevention device with a small opening and a large inner cavity, the closed doors are hinged to the shell through connecting hinges, the foldable plate comprises the closed doors and a backflow prevention plate, and one side of the closed doors is hinged to the shell through the connecting hinges; a handle is fixed on the closing plate; the other side of the closing plate is hinged with the backflow preventing plate through a folding hinge, and the backflow preventing plate is a transparent plate.

Furthermore, the device also comprises an L-shaped operating platform, wherein the vertical section of the L-shaped operating platform is made of ferrous materials; one side of the anti-backflow plate is hinged with the closed plate; the other side of the anti-backflow plate is provided with a bar magnet which can be attracted to the vertical section of the L-shaped operating platform.

Furthermore, the bottom of the water storage tank is provided with an inserting hole, and the horizontal section of the L-shaped operating platform is movably inserted into the inserting hole.

Furthermore, one end of the horizontal section of the L-shaped operating platform is movably lapped at the top end of the water storage tank.

Furthermore, the connecting hinge is connected with the shell through a buckle.

The utility model has the advantages that: 1. the utility model changes the original temporary water storage tank into the drawable water storage tank without a split water tank, realizes the recycling of water through the water pump, has simple and convenient installation and more portability, and saves water resources; the water storage tank which can be drawn can be used for conveniently replacing sewage, and the operation is convenient; 2. when spraying paint, the sprayed gas with certain pressure passes through the bell-mouth-shaped shell diversion bottom plate and the water curtain diversion plate to enable particles mixed with paint and air to be fully mixed with the flowing water curtain, so that the particles mixed with water are carried into the water storage tank by the flowing water, organic steam volatilized by the residual paint enters the shell from the main air duct under the action of the air suction device, and is discharged after the residual particles which are not completely absorbed by the water curtain are filtered by the filtering device, so that the gas is prevented from being reflected and overflowing into the environment, the working environment is protected, the suspended particles and the organic steam are prevented from being sucked by a human body, and the health of the human body is ensured; 3. Most particle waste residues in the waste gas before entering the main air duct can be cleaned by the water curtain on the water curtain guide plate, and the paint splashed on the guide bottom plate and the water curtain guide plate in the paint spraying process can be cleaned by the water curtain in time, so that the waste gas purifying effect is improved; 4. the filter device can effectively filter the residual particles in the organic vapor, thereby avoiding the decrease of the dust accumulation suction force of the air suction device caused by the adhesion of the suspended particles on the fan blades of the air suction device and prolonging the service life of the air suction device; 5. Getter device, water pump and semi-closed prevent that the device that backflows all need not demolishs and just very easily follow the casing and take off to the aqua storage tank also can take out, the cascade guide plate also can be opened, consequently the utility model discloses easy dismounting is convenient for clear up the maintenance to it, and labour saving and time saving has improved the work efficiency of clearance maintenance, has avoided because unable clean secondary pollution that causes.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the housing.

Fig. 3 is a schematic view of a connection structure of the housing and the water curtain device.

Fig. 4 is a rear schematic view of the present invention.

Fig. 5 is a schematic structural view of a water storage tank.

Fig. 6 is a schematic structural diagram of the water curtain device.

Fig. 7 is a schematic structural diagram of the closed state of the device of the present invention.

The air-conditioner comprises a shell 1, a flow guide bottom plate 1.1, a sliding groove 1.2, an air inducing device 2, an insulating fixing plate 2.1, an air suction device 2.2, a support frame 3, a water storage tank 4, a plugging hole 4.1, a water pump 5, filter cotton 6, a water curtain device 7, a water curtain flow guide plate 7.1, an overflow groove 7.2, a liquid discharge pipe 7.3, a blocking cover 7.4, a filter device 8, a semi-closed backflow prevention device 9, a closed door 9.1, a foldable plate 9.2, a closed plate 9.21, a backflow prevention plate 9.22, a handle 9.23, a foldable hinge 9.24, a connecting hinge 9.3, a main air duct 10, a water shielding plate 11, a water inlet channel 12, a secondary air duct 13, an L-shaped operating platform 14 and a buckle 15.

The specific implementation mode is as follows:

as shown in fig. 1-7, the detachable paint spraying waste gas purifying and discharging device of the disassembly-free tool comprises a shell 1 with an opening at one side and a closed side; a detachable air inducing device 2 is arranged above the closed side of the shell 1; the air inlet of the air inducing device 2 is communicated with the air outlet of the shell 1; two ends of a diversion bottom plate 1.1 of the shell 1 are symmetrically fixed with a support frame 3 respectively; the drawable water storage tank 4 is arranged below the flow guide bottom plate 1.1 positioned at the opening side of the shell 1, so that water and filter cotton 6 can be conveniently drawn out and replaced, equipment can be conveniently cleaned, the installation is simple and convenient, the carrying is more convenient, water resources are saved, meanwhile, sewage can be conveniently replaced, and the operation is convenient; the water inlet end of the water pump 5 is communicated with the inside of the water storage tank 4, namely the water inlet end of the water pump 5 is movably inserted into the water storage tank 4, so that the water pump 5 is convenient to take out and install, and filter cotton 6 is laid in the water storage tank 4 around the water pump 5; a water curtain device 7 is arranged in the shell 1 in a rotating way; the water inlet of the overflow trough 7.2 of the water curtain device 7 is communicated with the water outlet of the water pump 5 through a pipeline; two ends of the bottom edge of a water curtain guide plate 7.1 of the water curtain device 7 are rotatably arranged on the shell 1; the two ends of the top edge of the water curtain guide plate 7.1 are movably clamped with the shell 1 through buckles 15 respectively, and the buckles 15 are preferably magnet buckles, so that the water curtain guide plate 7.1 can be conveniently opened to clean the inside of the shell 1, and a filter element in the filtering device 8 can be conveniently replaced; a square filtering device 8 is arranged between the water curtain guide plate 7.1 and the closed side of the shell 1, one side of the filtering device 8 is fixed on the shell 1, the other side of the filtering device 8 is abutted against the water curtain guide plate 7.1, the air outlet of the shell 1 is positioned in the filtering device 8, the filtering device 8 can effectively filter residual particles in organic steam, the phenomenon that the dust-collecting suction force of the air suction device 2.2 is reduced due to the fact that suspended particles are adhered to fan blades of the air suction device 2.2 is avoided, and the service life of the air suction device 2.2 is prolonged; a detachable semi-closed backflow prevention device 9 is installed at the opening side of the housing 1.

The diversion bottom plate 1.1 is gradually inclined downwards from the closed side of the shell 1 to the opening side of the shell 1; the guide bottom plate 1.1 positioned at the opening side of the shell 1 and the lower part of the water curtain guide plate 7.1 form a horn shape, when spraying paint, the sprayed gas with certain pressure passes through the horn-mouth-shaped guide bottom plate 1.1 and the water curtain guide plate 7.1 to enable particles formed by mixing paint and air to be fully mixed with a flowing water curtain, so that the particles formed by mixing the paint and the water are carried to the water storage tank 4 by the flowing water, organic steam volatilized by the residual paint enters the shell 1 from the main air duct 10 under the action of the air suction device 2.2, and the residual particles which are not completely absorbed by the water curtain are filtered and discharged by the filter device 8, so that the gas is prevented from being reflected and overflowing to the environment, the working environment is protected, the suspended particles and the organic steam are prevented from being sucked by a human body, and the health of the human body is ensured; a main air duct 10 is formed between the diversion bottom plate 1.1 and the water curtain diversion plate 7.1; a water shield 11 is fixed in the shell 1 above the water storage tank 4; form into inhalant canal 12 between water shield 11 and the water conservancy diversion bottom plate 1.1, during water direct entering into aqua storage tank 4 from inhalant canal 12 of water conservancy diversion bottom plate 1.1 upstream and downstream, avoid the water outflow, water shield 11 has avoided waste gas to outwards discharge, contaminated air from the position of placing water pump 5 through aqua storage tank 4 simultaneously.

The water curtain device 7 comprises a water curtain guide plate 7.1 and an overflow groove 7.2; a secondary air channel 13 is formed between two side edges of the water curtain guide plate 7.1 and the shell 1; the top of the water curtain guide plate 7.1 is provided with an overflow groove 7.2, the bottom of the overflow groove 7.2 is provided with a liquid discharge pipe 7.3, the outlet end of the liquid discharge pipe 7.3 is in threaded connection with a blocking cover 7.4, during normal operation, the blocking cover 7.4 is in threaded connection with the outlet end of the liquid discharge pipe 7.3, so that the overflow groove 7.2 is ensured not to leak liquid, when the cleaning is needed, the water curtain guide plate 7.1 is opened, the blocking cover 7.4 is detached, liquid in the overflow groove 7.2 flows into the water storage groove 4 from the water inlet channel 12 along the flow guide bottom plate 1.1 of the shell 1 through the liquid discharge pipe 7.3, the overflow groove 7.2 is ensured not to store liquid, and the liquid in the overflow groove 7.2 is prevented; the side wall of the overflow trough 7.2 provided with the water inlet is higher than the other side wall corresponding to the water inlet; the lower side wall of the overflow trough 7.2 is fixedly connected with the top end of the water curtain guide plate 7.1.

The air inducing device 2 comprises an insulating fixing plate 2.1; an air suction device 2.2 is fixed on the insulating fixing plate 2.1, an induced draft fan is preferably selected as the air suction device 2.2, and an air inlet of the air suction device 2.2 is communicated with an air outlet of the shell 1; the shell 1 on the two sides of the insulating fixed plate 2.1 are respectively provided with a sliding chute 1.2, and the two side edges of the insulating fixed plate 2.1 are respectively inserted in the two sliding chutes 1.2 in a sliding manner, so that the air suction device 2.2 is convenient to disassemble and install.

The semi-closed backflow prevention device 9 comprises a pair of vertically arranged closed doors 9.1 and a foldable plate 9.2 movably lapped at the top ends of the pair of closed doors 9.1, the closed doors 9.1 and the foldable plate 9.2 are combined to form the semi-closed backflow prevention device 9 with a small opening and a large inner cavity, in the working process, the air suction device 2.2 enables a low-pressure environment to be formed in the semi-closed backflow prevention device 9, compared with the external normal-pressure environment, a certain pressure difference is formed, waste gas generated by paint spraying is prevented from being diffused into external air to pollute the environment, the closed doors 9.1 are hinged with the shell 1 through connecting hinges 9.3, the foldable plates 9.2 comprise closed plates 9.21 and backflow prevention plates 9.22, and one side of the closed plates 9.21 is hinged with the shell 1 through the connecting hinges 9.3; a handle 9.23 is fixed on the closing plate 9.21; the other side of the closing plate 9.21 is hinged with an anti-backflow plate 9.22 through a folding hinge 9.24, the anti-backflow plate 9.22 is made of transparent plate, and the anti-backflow plate 9.22 has the functions of protecting eyes (preventing paint from splashing to eyes) and preventing waste gas from reflecting to the environment; the connecting hinge 9.3 is connected with the shell 1 through a buckle 15, so that the semi-closed backflow preventing device 9 is convenient to detach and mount.

The device also comprises an L-shaped operating platform 14, wherein the vertical section of the L-shaped operating platform 14 is made of iron materials; one side of the anti-backflow plate 9.22 is hinged with the closing plate 9.21; the other side of the anti-backflow plate 9.22 is provided with a bar magnet which can be attracted to the vertical section of the L-shaped operating platform 14; the bottom of the water storage tank 4 is provided with an inserting hole 4.1, and the horizontal section of the L-shaped operating platform 14 is movably inserted into the inserting hole 4.1; one end of the horizontal segment of the L-shaped operating platform 14 is movably lapped on the top end of the water storage tank 4.

The working process is as follows:

1. before the work, the closing door 9.1 is firstly opened, the closing plate 9.21 and the backflow preventing plate 9.22 are erected above the closing door 9.1, then the water storage tank 4 is pulled out, a certain amount of water is injected into the water storage tank 4 and then pushed into the shell 1, then the water pump 5 is placed into the water storage tank 4 along the groove 1.1, and then one end of the horizontal section of the L-shaped operating platform 14 is movably overlapped at the top end of the water storage tank 4.

2. The working state is as follows: starting the water pump 5 and the air suction device 2.2, pumping the water in the water storage tank 4 into the overflow trough 7.2 by the water pump 5, and when the water level in the overflow trough 7.2 is higher than the lower side wall of the overflow trough 7.2, enabling the water to flow downwards along the water curtain guide plate 7.1 to form a water curtain, and enabling the formed water curtain to flow into the water storage tank 4 from the water inlet channel 12 after passing through the flow guide bottom plate 1.1 of the shell 1; then, placing the needed objects to be painted on the horizontal section of the L-shaped operating platform 14 for painting; waste gas generated in the paint spraying process is purified by a water curtain (namely soluble substances in the waste gas are dissolved in water to achieve the effect of waste gas purification) under the action of the air suction device 2.2, enters the shell 1 from the main air duct 10, is removed from particulate matters and partial water vapor by the filter device 8 and is discharged through the air suction device 2.2; the used sewage enters the water storage tank 4, the granular substances in the sewage are adsorbed by the filter cotton 6 to form reuse water, the reuse water is pumped into the overflow tank 7.2 by the water pump 5 again, and the circulation is carried out in such a way to provide circulating water for the water curtain device 7; most particle waste residues in the waste gas before the water curtain guide plate 7.1 can get into the main air duct 10 are washed away by the water curtain, and the paint splashed onto the baffle and the water curtain guide plate 7.1 in the paint spraying process can be also washed away by the water curtain in time, so that the waste gas purifying effect is improved.

3. And (3) non-working state: the water pump 5 and the air suction device 2.2 stop running, the water curtain guide plate 7.1 is opened, then the blocking cover 7.4 is detached, water in the overflow groove 7.2 flows into the water storage tank 4 from the water inlet channel 12 along the guide bottom plate 1.1, then the water storage tank 4 is pulled out, the water in the water storage tank 4 is directly subjected to sewage treatment, the water storage tank 4 is pushed back into the shell 1, the closed door 9.1 is pushed back into the shell 1, the foldable plate 9.2 is put down, then the L-shaped operating platform 14 is inverted, and the horizontal section of the L-shaped operating platform 14 is inserted into the plug hole 4.1 below the water storage tank 4; finally, the bar-shaped magnets of the anti-backflow plates 9.22 are attracted to the vertical section of the L-shaped operating platform 14, so that the shell 1 is in a closed state, and the problem of secondary pollution caused by volatilization of residual waste gas inside the shell is avoided.

The utility model discloses easy dismounting is convenient for clear up the maintenance to it, and labour saving and time saving has improved the work efficiency of clearance maintenance, has avoided because unable cleanness causes secondary pollution.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The detachable paint spraying waste gas purifying and discharging device of the disassembly-free tool is characterized by comprising a shell with one side opened and one side closed; a detachable air inducing device is arranged above the closed side of the shell; the air inlet of the air inducing device is communicated with the air outlet of the shell; two ends of the diversion bottom plate of the shell are symmetrically fixed with a support frame respectively; a drawable water storage tank is arranged below the diversion bottom plate positioned on the opening side of the shell, the water inlet end of the water pump is communicated with the inside of the water storage tank, and filter cotton is paved in the water storage tank; a water curtain device is arranged in the shell; a water inlet of an overflow groove of the water curtain device is communicated with a water outlet of the water pump through a pipeline; two ends of the bottom edge of a water curtain guide plate of the water curtain device are rotatably arranged on the shell; two ends of the top edge of the water curtain guide plate are movably clamped with the shell through buckles respectively; a square filtering device is arranged between the water curtain guide plate and the closed side of the shell, one side of the filtering device is fixed on the shell, the other side of the filtering device is abutted against the water curtain guide plate, and an air outlet of the shell is positioned in the filtering device; and a detachable semi-closed backflow prevention device is arranged on the opening side of the shell.

2. The detachable painting exhaust gas purifying and discharging device of a disassembly-free tool as claimed in claim 1, wherein the flow guide bottom plate is gradually inclined downward from the closed side of the housing to the open side of the housing; the diversion bottom plate positioned on the opening side of the shell and the lower part of the water curtain diversion plate form a horn shape; and a main air duct is formed between the diversion bottom plate and the water curtain diversion plate.

3. The detachable painting waste gas purifying and discharging device of the disassembly-free tool as claimed in claim 1 or 2, wherein a water shielding plate is fixed in the housing above the water storage tank; and a water inlet channel is formed between the water shielding plate and the flow guide bottom plate.

4. The detachable painting waste gas purifying and discharging device of the disassembly-free tool as claimed in claim 1, wherein the water curtain device comprises the water curtain guide plate and the overflow tank; a secondary air channel is formed between the two side edges of the water curtain guide plate and the shell; the top of the water curtain guide plate is provided with the overflow groove, the bottom of the overflow groove is provided with a liquid discharge pipe, and the outlet end of the liquid discharge pipe is screwed with a blocking cover.

5. The detachable paint spraying waste gas purifying and discharging device of the disassembly-free tool as claimed in claim 4, wherein the side wall of the overflow tank provided with the water inlet is higher than the other side wall corresponding to the water inlet; the lower side wall of the overflow groove is fixedly connected with the top end of the water curtain guide plate.

6. The detachable painting waste gas purifying and discharging device of the disassembly-free tool as claimed in claim 1, wherein the air inducing device comprises an insulating fixing plate; an air suction device is fixed on the insulating fixing plate, and an air inlet of the air suction device is communicated with an air outlet of the shell; the shell on two sides of the insulating fixed plate is respectively provided with a sliding groove, and two side edges of the insulating fixed plate are respectively inserted into the two sliding grooves in a sliding manner.

7. The detachable paint spraying waste gas purifying and discharging device of the disassembly-free tool as claimed in claim 1, wherein the semi-closed backflow preventing device comprises a pair of vertically arranged closing doors and a foldable plate movably lapped on top ends of the pair of closing doors, the closing doors and the foldable plate are combined to form the semi-closed backflow preventing device with a small opening and a large inner cavity, the closing doors are hinged with the casing through connecting hinges, the foldable plate comprises a closing plate and a backflow preventing plate, and one side of the closing plate is hinged with the casing through the connecting hinges; a handle is fixed on the closing plate; the other side of the closing plate is hinged with the backflow preventing plate through a folding hinge, and the backflow preventing plate is a transparent plate.

8. The detachable painting waste gas purifying and discharging device of the disassembly-free tool as claimed in claim 7, further comprising an L-shaped console, wherein the vertical section of the L-shaped console is made of ferrous material; one side of the anti-backflow plate is hinged with the closed plate; the other side of the anti-backflow plate is provided with a bar magnet which can be attracted to the vertical section of the L-shaped operating platform.

9. The detachable painting waste gas purifying and discharging device of claim 8, wherein the bottom of the water storage tank is provided with an insertion hole, and the horizontal section of the L-shaped operating platform is movably inserted into the insertion hole.

10. The detachable painting waste gas purifying and discharging device of the disassembly-free tool as claimed in claim 8, wherein one end of the horizontal section of the L-shaped operating platform is movably lapped on the top end of the water storage tank.

11. The detachable painting waste gas purifying and discharging device of the disassembly-free tool as claimed in any one of claims 7 to 10, wherein the connecting hinge is connected with the housing by a snap-fit connection.