Plate-shaped filter for paint spray booth

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a plate-shaped filter for a paint spray booth. The plate-shaped filter for the paint spray booth comprises a metal frame, an upper limiting plate, a lower limiting plate and an adsorption filtering filler. The metal frame comprises a body frame, an overturning frame, a side-hung hinge and a lock catch. The body frame and the overturning frame are stacked, meanwhile, a hinged assembly mode is achieved by means of a side-hung hinge, and posture locking is conducted by means of a lock catch. Therefore, on one hand, in the actual application, the adsorption filtering filler can be fully exposed in the view of a worker by unlocking the lock catch and circumferentially lifting the overturning frame, so that old removal and new replacement operations can be conveniently carried out on the adsorption filtering filler, and after the adsorption filtering filler is loaded in place relative to the accommodating cavity, the overturning frame is reversely lifted, so that the adsorption filtering filler can be fully exposed in the view of the worker; the lock catch is locked again until the lock catch is combined with the metal frame, so that the whole replacement operation is extremely convenient and quick to execute; and on the other hand, the width value is larger, so that more adsorption filtering fillers can be borne.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a plate-shaped filter for a spray booth. Background Art

[0002] As is well known, the painting process is a key link for discharging pollutants in industrial production. When entering the spray painting operation, organic solvents volatilize rapidly, and the painting workshop will be filled with paint mist. In today's era of advocating green painting and double reduction, how to reduce paint mist emissions is an issue that every enterprise should concern.

[0003] Nowadays, the adsorption method is the most common paint mist treatment solution, specifically: a filtering device is equipped at the exhaust outlet of the workshop. Along the flow direction of the paint mist, a primary plate-shaped filter, a medium-effect plate-shaped filter, and a high-efficiency plate-shaped filter are arranged in sequence. According to different specific requirements of working performance, adsorbents such as activated carbon, silica gel, and molecular sieve are filled in each type of plate-shaped filter. The adsorbent efficiently adsorbs the organic matter and particles of the paint mist, making its purification degree meet the air emission standards. In the prior art, the plate-shaped filter is mainly composed of a metal frame, an upper limiting plate, a lower limiting plate, and a filter filling material, etc. The upper limiting plate and the lower limiting plate are respectively abutted against the top wall and the bottom wall of the metal frame and are fixed by means of screws. For a certain model of plate-shaped filter for a spray booth in the market competitors, just for its upper limiting plate, the number of supporting screws reaches 12. Such a design, on the one hand, in the manufacturing factory stage, the total assembly time required is relatively long, and it is mainly concentrated in the stages of screw alignment and tightening. And in the machining stage, a large number of threaded holes need to be formed on both sides of the metal frame, which is not conducive to the control of the production rhythm and the reduction of the total manufacturing cost; on the other hand, in the later maintenance and repair stage, in order to replace the filter material, the maintenance personnel need to loosen each screw one by one and then tighten each screw again, which is time-consuming and laborious; on the third hand, the existing plate-shaped filter has a relatively small thickness value, so the filling amount of the filter material is limited, which in turn limits its purification ability to a certain extent. Therefore, it is urgent for those skilled in the art to solve the above problems. Summary of the Utility Model

[0004] Therefore, in view of the above existing problems and defects, the development and design team of the utility model collected relevant materials, through multi-party evaluation and consideration, and through continuous experiments and modifications by the development and design team members, finally led to the emergence of the plate-shaped filter for the spray booth.

[0005] In order to solve the above technical problems, the present utility model relates to a plate-shaped filter for a spray booth, which includes a metal frame, an upper limiting plate, a lower limiting plate, and an adsorption and filtration filler. The upper limiting plate and the lower limiting plate use the metal frame as an assembly basis, and cooperate with the metal frame to enclose a receiving cavity for placing the adsorption and filtration filler. The upper limiting plate and the lower limiting plate are respectively provided with a large number of air-permeable holes for the free passage of paint mist. The metal frame is a split structure, which includes a main body frame, a flipping frame, a flat hinge, and a lock. The main body frame serving as the assembly basis for the lower limiting plate and the flipping frame serving as the assembly basis for the upper limiting plate are stacked, and at the same time, the hinged assembly method is realized by means of the flat hinge, and the attitude is locked by means of the lock. When the lock is in the unlocked state, the flipping frame performs a flipping motion relative to the main body frame due to external force. When the lock is in the locked state, the flipping freedom of the flipping frame is restricted.

[0006] As a further improvement of the technical solution disclosed by the present utility model, the main body frame includes a lower aluminum profile and a lower hidden connection component. A plurality of lower aluminum profiles are paired and assembled, and fixed connection is realized by means of the lower hidden connection component. The flipping frame includes an upper aluminum profile and an upper hidden connection component. A plurality of upper aluminum profiles are paired and assembled, and fixed connection is realized by means of the upper hidden connection component.

[0007] As a further improvement of the technical solution disclosed by the present utility model, the main body frame further includes a baffle component. A plurality of baffle components are all based on two relatively arranged lower aluminum profiles as the assembly basis, and cooperate to divide the receiving cavity into regions, and incidentally form a plurality of independent receiving sub-cavities for loading adsorption and filtration fillers of different shapes and sizes.

[0008] As a further improvement of the technical solution disclosed by the present utility model, the baffle component includes a partition aluminum profile, a front corner seat, a rear corner seat, and a first T-shaped bolt component. In the state where the metal frame lies flat, the partition aluminum profile is placed vertically in the receiving cavity, and its front and rear ends are respectively vertically docked with the two relatively arranged lower aluminum profiles by means of the first T-shaped bolt component.

[0009] As a further improvement of the technical solution disclosed by the present utility model, the lower limiting plate is assembled with the main body frame in a pulling manner. Correspondingly, a first lower insertion slot and a second lower insertion slot adapted to the thickness value of the lower limiting plate are respectively opened on the two relatively arranged lower aluminum profiles. The upper limiting plate is also assembled with the flipping frame in a pulling manner. Correspondingly, a first upper insertion slot and a second upper insertion slot adapted to the thickness value of the upper limiting plate are respectively opened on the two relatively arranged upper aluminum profiles.

[0010] As a further improvement of the technical solution disclosed by the present utility model, assume that the thickness value of the adsorption and filtration filler is t. After the upper limiting plate and the lower limiting plate are inserted into place relative to the metal frame, assume that the distance between the two in the height direction is d, then 2mm ≤ d - t ≤ 3mm.

[0011] As a further improvement of the technical solution disclosed by the present utility model, the number of flat hinges is at least 2, linearly arranged along the length direction of the metal frame, and are detachably connected to the main body frame and the flipping frame respectively by means of the second T-bolt assembly.

[0012] As a further improvement of the technical solution disclosed by the present utility model, the number of lock catches is 1, arranged at the mid-position along the length direction of the metal frame, and are detachably connected to the main body frame and the flipping frame respectively by means of the third T-bolt assembly.

[0013] As a further improvement of the technical solution disclosed by the present utility model, the lock catch includes a first lock catch sub-component, a second lock catch sub-component and a pin shaft. First through holes and second through holes adapted to the third T-bolt assembly are respectively provided on the first lock catch sub-component and the second lock catch sub-component. The first lock catch sub-component is assembled to the second lock catch sub-component in a hinged manner by means of the pin shaft; when the pin shaft is removed, the first lock catch sub-component and the second lock catch sub-component are separated, and the lock catch is maintained in an unlocked state.

[0014] During the spraying production stage, when the adsorption and filtration filler needs to be replaced due to its filtration performance not meeting the standard after a period of application, the worker first needs to unlock the lock catch, and then lift the flipping frame upward. The flipping frame rotates relative to the main body frame at a large angle under the action of the rotational torque until all the adsorption and filtration filler installed in the accommodation is exposed, which is convenient for the worker to quickly push for removal and subsequent replacement operations.

[0015] In practical applications, the plate-shaped filter for a spray booth disclosed by the present utility model has at least achieved the following beneficial technical effects:

[0016] 1) By unlocking the lock catch and circumferentially lifting the flipping frame, the adsorption and filtration filler can be fully exposed within the worker's view, which is beneficial for performing the old removal and replacement operations; when the adsorption and filtration filler is installed in place relative to the accommodation cavity, the flipping frame is lifted in the reverse direction until it is aligned with the main body frame, and the lock catch is locked again. From the above steps, it can be seen that the entire replacement operation is extremely convenient and fast, and can be easily completed by only one worker;

[0017] 2) During the workshop assembly stage, the assembly process route is relatively short, and the total assembly time of a single plate-shaped filter is significantly shortened, which is beneficial for further reducing the overall manufacturing cost;

[0018] 3) Compared with the conventional single-plate plate filter, its width value is larger and it is convenient to be widened again, so that it can carry more adsorption and filtration fillers, which means a significant improvement in the paint mist purification performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a three-dimensional schematic diagram of the plate filter for the spray booth in the present invention.

[0021] Figure 2 It is also a three-dimensional schematic diagram of the plate filter for the spray booth in the present invention (in the open state).

[0022] Figure 3 It is a three-dimensional schematic diagram of one perspective of the metal frame in the plate filter for the spray booth in the present invention.

[0023] Figure 4 It is a three-dimensional schematic diagram of another perspective of the metal frame in the plate filter for the spray booth in the present invention.

[0024] Figure 5 It is also a three-dimensional schematic diagram of another perspective of the metal frame in the plate filter for the spray booth in the present invention (when the flip frame is in the flipped state).

[0025] Figure 6 It is a three-dimensional schematic diagram of the body frame in the plate filter for the spray booth in the present invention.

[0026] Figure 7 It is also a three-dimensional schematic diagram of the body frame in the plate filter for the spray booth in the present invention (after hiding the lower aluminum profile on the left side).

[0027] Figure 8 It is a three-dimensional schematic diagram of the grading component in the plate filter for the spray booth in the present invention.

[0028] Figure 9 It is Figure 6 the enlarged view of part I.

[0029] Figure 10 It is Figure 7 the enlarged view of part II.

[0030] Figure 11It is a three-dimensional schematic diagram of the lower-mounted implicit connection component in the plate-shaped filter for the paint spraying booth of the present utility model.

[0031] Figure 12 It is a three-dimensional schematic diagram of the flipping frame in the plate-shaped filter for the paint spraying booth of the present utility model.

[0032] Figure 13 It is also a three-dimensional schematic diagram of the flipping frame in the plate-shaped filter for the paint spraying booth of the present utility model (after hiding the upper-mounted aluminum profile on the left side).

[0033] Figure 14 It is a three-dimensional schematic diagram of one perspective when the flat hinge and the second T-shaped bolt assembly are applied in cooperation in the plate-shaped filter for the paint spraying booth of the present utility model.

[0034] Figure 15 It is a three-dimensional schematic diagram of another perspective when the flat hinge and the second T-shaped bolt assembly are applied in cooperation in the plate-shaped filter for the paint spraying booth of the present utility model.

[0035] Figure 16 It is a three-dimensional schematic diagram of one perspective when the lock and the third T-shaped bolt assembly are applied in cooperation in the plate-shaped filter for the paint spraying booth of the present utility model.

[0036] Figure 17 It is a three-dimensional schematic diagram of another perspective when the lock and the third T-shaped bolt assembly are applied in cooperation in the plate-shaped filter for the paint spraying booth of the present utility model.

[0037] Figure 18 It is a transverse cross-sectional view of the plate-shaped filter for the paint spraying booth in the present utility model.

[0038] Figure 19 It is Figure 18 The partial enlarged view of III.

[0039] 1 - Metal frame; 11 - Body frame; 111 - Lower-mounted aluminum profile; 112 - Lower-mounted implicit connection component; 113 - Binning component; 1131 - Partition aluminum profile; 1132 - Front corner seat; 1133 - Rear corner seat; 1134 - First T-shaped bolt assembly; 12 - Flipping frame; 121 - Upper-mounted aluminum profile; 122 - Upper-mounted implicit connection component; 13 - Flat hinge; 14 - Lock; 141 - First lock split part; 142 - Second lock split part; 143 - Pin shaft; 15 - Second T-shaped bolt assembly; 16 - Third T-shaped bolt assembly; 2 - Upper-mounted limit plate; 3 - Lower-mounted limit plate; 4 - Adsorption and filtration filler. Specific embodiments

[0040] In the description of the present invention, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] The paint mist filter equipment is connected to the exhaust port of the paint spraying and coating workshop as a terminal high-efficiency filtering device. The adsorption and filtering filler disclosed in the utility model is used as a key component of the paint mist filter equipment to adsorb and filter pollutants such as paint mist to meet the emission standards.

[0042] The following is a further detailed description of the contents disclosed in the present utility model in conjunction with specific embodiments. Figure 1 , Figure 2 The three-dimensional schematic diagrams of the plate filter for the paint spray room in the utility model in two different states are respectively shown. It can be known that it is mainly composed of several parts such as a metal frame 1, an upper limit plate 2, a lower limit plate 3 and an adsorption filter filler 4. Among them, the upper limit plate 2 and the lower limit plate 3 use the metal frame 1 as an assembly basis, and cooperate with the metal frame 1 to surround a accommodating cavity for placing the adsorption filter filler 4. In order to ensure that the adsorption filter filler 4 has good position certainty after being loaded and avoid the problem of excessive impact noise during the working process, in view of this, it is assumed that the thickness value of the adsorption filter filler 4 is t. When the upper limit plate 2 and the lower limit plate 3 are installed in place relative to the metal frame 1, the distance between the two is assumed to be d in the height direction, then 2mm≤dt≤3mm (such as Figure 18 As shown in ). According to the specific requirements of working performance and filtering accuracy, the adsorption and filtration filler 4 can be selected from activated carbon, silica gel and molecular sieve. The upper limiting plate 2 and the lower limiting plate 3 are respectively provided with a large number of air holes for the paint mist to pass freely. In specific applications, the flow path of the paint mist is: lower limiting plate 3-adsorption and filtration filler 4-upper limiting plate 2.

[0043] like Figure 3 , 4, as shown in FIGS. 5, the metal frame 1 is a split structure, which mainly consists of a main body frame 11, a flipping frame 12, a flat hinge 13, a lock 14, a second T-bolt assembly, a third T-bolt assembly, and other components. Among them, the main body frame 11 and the flipping frame 12 are respectively used as the installation bases of the lower limiting plate 3 and the upper limiting plate 2, and the two are simultaneously assembled by means of the flat hinge 13 in a hinged manner, and the posture is locked by means of the lock 14. When the lock 14 is in the unlocked state, the flipping frame 12 performs a flipping motion relative to the main body frame 11 under the action of an external force. When the lock 14 is in the locked state, the flipping freedom of the flipping frame 12 is restricted.

[0044] In the spraying production stage, when the adsorption filter filler 4 needs to be replaced due to its filtration performance not meeting the standard after a period of application, the worker first needs to unlock the lock 14, and then lift the flipping frame 12 upward. The flipping frame 12 performs a large-angle flip relative to the main body frame 11 under the action of the rotational torque until all the adsorption filter fillers 4 installed in the accommodation are exposed, which is conducive to the worker to conveniently and quickly push forward the removal and subsequent replacement operations.

[0045] In practical applications, the plate-shaped filter for a spray booth disclosed by the present utility model has at least achieved the following beneficial technical effects:

[0046] 1) By unlocking the lock 14 and circumferentially lifting the flipping frame 12, the adsorption filter filler 4 can be fully exposed within the worker's field of vision, which is conducive to performing the old removal and replacement operations on it; when the adsorption filter filler 4 is installed in place relative to the accommodation cavity, the flipping frame 12 is lifted in the reverse direction until it is aligned with the main body frame 11, and then the lock 14 is locked again. From the above steps, it can be seen that the entire replacement operation is extremely convenient and fast, and can be easily completed by only one worker;

[0047] 2) In the workshop assembly stage, the assembly process route is relatively short, and the total assembly time of a single plate-shaped filter is greatly shortened, which is conducive to further reducing the overall manufacturing cost;

[0048] It should also be emphasized that compared with the conventional single-plate plate-shaped filter, its width value is larger and it is convenient to be further widened, so that it can carry more adsorption filter fillers 4, which means a significant improvement in the paint mist purification performance and also reduces the replacement frequency to a certain extent.

[0049] As Figure 6 , 7 , as shown in FIGS. 10, the main body frame 11 is an assembled structure. Four lower aluminum profiles 111 are assembled in pairs to form a frame structure, and are assembled by means of a lower hidden connection component 112 (such as Figure 11As shown in [reference], a fixed connection is achieved. As shown in [references 12 and 13], the flipping frame 12 has a similar design structure. Multiple upper aluminum profiles 121 are paired and assembled, and a fixed connection is achieved by means of the upper implicit connection component 122. In this way, on the premise of ensuring that the metal frame 1 reliably and stably bears the adsorption filter filler 4, it has good structural strength and stability, a relatively simple design structure, a relatively large self-weight, and is conducive to manufacturing implementation.

[0050] It is known that as the windward area of a single adsorption filter filler 4 increases, its own fixed stability and structural strength tend to deteriorate, especially when the wind speed is too high, and in severe cases, it may even affect the normal performance of the plate filter. In view of this, as a further optimization of the above technical solution, as Figure 5 , 6 shown in [reference], the main body frame 11 is further provided with a grading component 113. The three grading components 113 are all based on two relatively opposed lower aluminum profiles 111 for assembly, and cooperate with each other to divide the accommodation cavity, and incidentally form four independent accommodation sub-cavities for loading adsorption filter fillers 4 with different shapes and sizes. In this way, on the premise of ensuring that the performance of the plate filter remains basically unchanged, a single adsorption filter filler 4 has a relatively small windward area, which is conducive to improving its assembly stability relative to the metal frame 1, and its own structural strength is significantly improved.

[0051] As a structural preference, as Figure 8 shown in [reference], the grading component 113 mainly consists of a partition aluminum profile 1131, a front corner seat 1132, a rear corner seat 1133, and a first T-bolt assembly 1134, etc. When the metal frame 1 is in a lying state, the partition aluminum profile 1131 is placed vertically in the accommodation cavity, and its front and rear ends are vertically docked with the two relatively opposed lower aluminum profiles 111 by means of the first T-bolt assembly 1134 (as Figure 9 shown in [reference]). In this way, when it is necessary to adjust the space size of each accommodation sub-cavity, the worker loosens each first T-bolt assembly 1134, and then pushes it horizontally along the length direction of the metal frame 1 until it meets the expected requirements, loads the adsorption filter filler 4, and then tightens each first T-bolt assembly 1134 again. The whole operation process is convenient and fast.

[0052] It is known that, according to common sense, the lower limit plate 3 and the upper limit plate 2 can adopt design structures to achieve assembly with the metal frame 1. However, a preferred implementation with a simple design structure, easy manufacturing implementation, and rapid and convenient disassembly and assembly operations is as follows: The lower limit plate 3 is assembled with the main body frame 11 in a drawer-pull manner. Correspondingly, first lower insertion slots and second lower insertion slots adapted to the thickness value of the lower limit plate 3 are respectively formed on two opposite lower aluminum profiles 111. The upper limit plate 2 is also assembled with the flipping frame 12 in a drawer-pull manner. Correspondingly, first upper insertion slots and second upper insertion slots adapted to the thickness value of the upper limit plate 2 are respectively formed on two opposite upper aluminum profiles 121 (as shown in Figure 18 , 19 ). In specific applications, when it is necessary to replace the lower limit plate 3 or the upper limit plate 2, only the lower hidden connection component 112 and the upper hidden connection component 122 need to be removed to correspondingly disassemble the left lower aluminum profile 111 and the left upper aluminum profile 121. Then, the old ones can be pulled out along the length direction of the metal frame 1 and new ones can be inserted.

[0053] As shown in Figure 3 , 4 , the number of flat hinges 13 is 2, linearly arrayed along the length direction of the metal frame 1, and detachably connected to the main body frame 11 and the flipping frame 12 respectively by means of the second T-shaped bolt assembly 15 (as shown in Figure 14 , 15 ). The number of latches 14 is 1, provided at the central position along the length direction of the metal frame 1, and detachably connected to the main body frame 11 and the flipping frame 12 respectively by means of the third T-shaped bolt assembly 16 (as shown in Figure 16 , 17 ).

[0054] As shown in Figure 16 , 17As shown, the latch 14 includes a first latch sub-component 141, a second latch sub-component 142, and a pin shaft 143. A first through-hole and a second through-hole adapted to the third T-shaped bolt assembly 16 are respectively formed in the first latch sub-component 141 and the second latch sub-component 142. The first latch sub-component 141 is hingedly assembled with the second latch sub-component 142 by means of the pin shaft 143. During the spraying production stage, when it is necessary to perform a replacement operation on the adsorption filtration filler 4, the worker first needs to pull out the pin shaft 143 to separate the first latch sub-component 141 and the second latch sub-component 142, so that the latch 14 is maintained in the unlocked state. Subsequently, the flipping frame 12 is lifted upward. Due to the action of the rotational torque, the flipping frame 12 performs a large-angle flip relative to the body frame 11 until all the adsorption filtration fillers 4 installed in the accommodation are exposed, laying a good foundation for the smooth execution of the subsequent replacement operation.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A plate filter for a paint spraying room, comprising a metal frame, an upper limit plate, a lower limit plate and an adsorption filter filler; the upper limit plate and the lower limit plate are assembled with the metal frame as a basis, and cooperate with the metal frame to form a receiving cavity for placing the adsorption filter filler; the upper limit plate and the lower limit plate are respectively provided with a large number of air holes for free passage of paint mist, characterized in that: The metal frame is a split structure, which includes a main body frame, a flip frame, a flat opening hinge and a lock; the main body frame used as the assembly basis of the lower limit plate and the flip frame used as the assembly basis of the upper limit plate are stacked, and the flat opening hinge is used to realize a hinged assembly method, and the lock is used to perform posture locking; when the lock is in an unlocked state, the flip frame performs a flipping movement relative to the main body frame due to the action of external force; and when the lock is in a locked state, the flipping freedom of the flip frame is restricted.

2. The plate filter for a paint spraying room according to claim 1, characterized in that: The main body frame includes a lower aluminum profile and a lower internal implicit connection component; multiple pieces of the lower aluminum profiles are paired and assembled, and fixed connection is achieved with the help of the lower internal implicit connection component; the flip frame includes an upper aluminum profile and an upper internal implicit connection component; multiple pieces of the upper aluminum profiles are paired and assembled, and fixed connection is achieved with the help of the upper internal implicit connection component.

3. The plate filter for a paint spraying room according to claim 2, characterized in that: The main body frame also includes a stepping assembly; multiple stepping assemblies are assembled based on the two opposite lower aluminum profiles, cooperating to divide the accommodating cavity into areas, and incidentally forming multiple independent accommodating sub-cavities for loading the adsorption and filtration filling materials of different shapes and sizes.

4. The plate filter for a paint spraying room according to claim 3, characterized in that: The dividing assembly includes a partition aluminum profile, a front angle seat, a rear angle seat and a first T-bolt assembly; when the metal frame is lying flat, the partition aluminum profile is placed vertically in the accommodating cavity, and its front and rear ends are respectively connected vertically with the two opposite lower aluminum profiles by means of the first T-bolt assembly.

5. The plate filter for a paint spraying room according to claim 2, characterized in that: The lower limit plate is assembled with the main body frame by a pulling and pulling method. Correspondingly, a first lower insertion groove and a second lower insertion groove which are matched with the thickness value of the lower limit plate are respectively opened on the two opposite lower aluminum profiles; the upper limit plate is also assembled with the flip frame by a pulling and pulling method. Correspondingly, a first upper insertion groove and a first upper insertion groove which are matched with the thickness value of the upper limit plate are respectively opened on the two opposite upper aluminum profiles.

6. The plate filter for a paint spraying room according to claim 5, characterized in that: Assume that the thickness of the adsorption filter filler is t; when the upper limit plate and the lower limit plate are inserted into place relative to the metal frame, the distance between the two along the height direction is assumed to be d, then 2mm≤dt≤3mm.

7. The plate filter for a paint spraying room according to any one of claims 1 to 6, characterized in that: The number of the flat hinges is at least 2, which are arranged in a linear array along the length direction of the metal frame, and are detachably connected to the main body frame and the flip frame respectively by means of a second T-bolt assembly.

8. The plate filter for a paint spraying room according to any one of claims 1 to 6, characterized in that: The number of the lock buckles is 1, which is arranged at the middle position along the length direction of the metal frame, and is detachably connected to the main body frame and the flip frame respectively by means of a third T-bolt assembly.

9. The plate filter for a paint spraying room according to claim 8, characterized in that: The lock includes a first lock split part, a second lock split part and a pin shaft; a first through hole and a second through hole compatible with the third T-bolt assembly are respectively opened in the first lock split part and the second lock split part; the first lock split part is used by the pin shaft to achieve an articulated assembly with the second lock split part; when the pin shaft is removed, the first lock split part and the second lock split part are separated, and the lock is maintained in an unlocked state.

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