A mobile paint spray booth

Abstract

The utility model discloses a mobile paint spray booth, including paint room frame, paint room frame has two and presents horizontal distribution, is equipped with soft curtain between two paint room frames, and the outer surface fixedly connected with even distribution's support of soft curtain, and the lower extreme of support all is equipped with the moving wheel, and the horizontal adjacent two supports all are equipped with a support rod between, and the inner wall of support rod all is fixedly connected with the outer surface of soft curtain, still including telescopic mechanism, telescopic mechanism: it includes mounting block, connecting rod, sliding slot, limit component and locking assembly, the mounting block is fixedly covered and is equipped with on the outer surface upper end and the front and back two sides of support rod, and the left and right sides of support are established in sliding slot respectively, and the left and right sides of support rod are located and the horizontal adjacent two sliding slots between all slidingly connect with connecting rod, and this mobile paint spray booth, and the paint spray booth has the hard limit and locking structure, and can carry out the storage and release without the limit of track, and the electric push rod also will not be stressed directly when moving subsequently.

Description

Technical Field

[0001] This utility model relates to the field of spray booth technology, specifically a mobile spray booth. Background Technology

[0002] A spray booth is an industrial enclosed space used for spraying paint onto workpiece surfaces. It is primarily used for coating workpieces in industries such as automotive, machinery, and furniture. A mobile spray booth is a type of spraying equipment that can flexibly adjust its working position. It combines the environmental friendliness and high efficiency of traditional spray booths with the convenience of mobile equipment, allowing spraying operations to be carried out in different locations within the workshop. This effectively reduces the pollution of the surrounding environment by paint mist and harmful gases. A mobile spray booth consists of a frame, telescopic mechanism, ventilation mechanism, casters, and tracks. The telescopic mechanism, located between the left and right frames, comprises support rods, connecting rods, and a soft curtain, and is driven by an electric push rod for extension and retraction. The ventilation mechanism consists of two left and right ventilation pipes, an external fan, and filter components, providing air circulation and exhaust gas purification for the spray booth. The casters provide the foundation for the spray booth's movement, and the tracks provide the necessary support for the spray booth's operation. The telescopic mechanism of the paint booth provides a limiting effect. During use, the entire paint booth can be moved by the casters, and the telescopic mechanism expands and contracts the booth. A ventilation system provides air circulation and exhaust gas purification. Traditional mobile paint booths require limiting during deployment and retraction, necessitating tracks to restrict the movement of the support rods and ensure stable movement. Without track limiting, the connecting rods are prone to wobbling during deployment and retraction, causing the support rods to shift. This results in significant radial loads on the telescopic end of the electric push rod during deployment and retraction. Furthermore, once the paint booth is fully deployed, it is only limited by the electric push rod, lacking an external rigid locking structure. During subsequent movement, the pulling force can easily damage the electric push rod, rendering the entire mobile paint booth unusable. Therefore, we propose a new type of mobile paint booth. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a mobile spray booth. The spray booth itself has a rigid limiting and locking structure, and can be retracted and extended without the limitation of the track. When moving it, the electric push rod will not be directly subjected to force, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a mobile spray booth, comprising a spray booth frame, wherein there are two spray booth frames arranged laterally, a soft curtain is provided between the two spray booth frames, and evenly distributed supports are fixedly connected to the outer surface of the soft curtain, each support having a movable wheel at its lower end, a support rod is provided between two laterally adjacent supports, and the inner wall of each support rod is fixedly connected to the outer surface of the soft curtain, and a telescopic mechanism is also included.

[0005] Telescopic mechanism: It includes mounting blocks, connecting rods, sliding grooves, limiting components, and locking components. Mounting blocks are fixedly fitted on the upper end and front and rear sides of the outer surface of the support rod. Sliding grooves are respectively opened on the left and right sides of the bracket. Connecting rods are slidably connected between two horizontally adjacent sliding grooves on the left and right sides of the support rod. The intersection of two vertically adjacent connecting rods is rotatably connected to the side of the mounting block away from the middle of the soft curtain, providing a basis for the opening and closing of the paint booth. The limiting components are respectively set on the front and rear sides of the soft curtain, and the locking components are respectively set on the lower ends of the front and rear sides of the soft curtain. The paint booth itself has rigid limiting and locking structures, and can be opened and closed without the limitation of the track. The electric push rod will not be directly stressed during subsequent movement.

[0006] Furthermore, the limiting component includes a fixing block, a limiting block, a limiting hole, and a limiting post. The fixing block is fixedly sleeved on the front and rear sides of the upper end of the outer surface of the support rod. The limiting blocks are respectively set on the front and rear sides of the top wall of the bracket. The limiting holes are respectively opened on the front and rear sides inside the limiting blocks. The limiting posts are respectively set on the front and rear sides inside the fixing block. The outer surface of the limiting posts is slidably connected to the inner wall of the vertically adjacent limiting holes, providing a basis for the upper limit when the paint booth is retracted.

[0007] Furthermore, the limiting assembly also includes a sleeve and a limiting rod. The sleeve is slidably connected to the front and rear sides of the middle of the outer surface of the support rod, and the sleeve and the bracket are rotatably connected to the limiting rod, providing a basis for limiting the left and right sides of the lower end when the paint booth is retracted.

[0008] Furthermore, the locking assembly includes a locking plate, sliding pillars, insertion holes, grooves, protrusions, and connecting bolts. The locking plates are rotatably connected to the lower ends of the front and rear sides of the bracket. The sliding pillars are all slidably connected to the middle of the interior of the locking plate. The insertion holes are all opened in the middle of the right side of the interior of the locking plate, and the sliding pillars are all installed in conjunction with the insertion holes. The grooves are all opened in the middle left side of the interior of the locking plate. The protrusions are all set in the lower middle of the outer surface of the sliding pillars, and the outer surface of the protrusions is engaged with the inner wall of the vertically adjacent grooves. The connecting bolts are all threadedly connected to the left side of the interior of the locking plate, and the connecting bolts are all installed in conjunction with the bracket, providing a limiting effect for rigid locking before and after the paint booth is opened and closed.

[0009] Furthermore, the telescopic mechanism also includes electric push rods, which are all located at the upper middle part of the bracket. The input end of the electric push rod is electrically connected to an external power source to provide a driving effect for the extension and retraction of the paint booth.

[0010] Furthermore, it also includes a skirt, with skirts on both the left and right sides of the lower end of the soft curtain. The skirts are bent towards the side closer to the center of the soft curtain, providing a basis for the soft curtain to contact the ground.

[0011] Furthermore, it also includes a motor, a rotating roller rotatably connected inside the middle of the paint booth frame on the right side, a door curtain slidably connected inside the middle of the paint booth frame on the right side, the upper left side of the door curtain is fixedly connected to the right side of the outer surface of the rotating roller, the motor is set inside the front side of the paint booth frame on the right side, the input end of the motor is electrically connected to the output end of the microcontroller, and the rear end of the output shaft of the motor is fixedly connected to the front end of the rotating roller, providing a basis for the opening and closing of the door curtain.

[0012] Furthermore, an air inlet pipe is provided at the upper right end of the paint booth frame on the right side, and an exhaust pipe is provided at the lower left end of the paint booth frame on the left side, providing a basis for air circulation and exhaust gas purification in the paint booth.

[0013] Furthermore, it also includes a microcontroller, which is located at the lower front end of the paint booth frame on the right side. The input terminal of the microcontroller is electrically connected to an external power supply to provide control for the paint booth.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This mobile spray booth has the following advantages:

[0015] 1. By deflecting the connecting rod, the support rod is always positioned in the middle of the two supports, thus ensuring that the fixing block is always positioned in the middle of the two supports. This allows the limiting post to slide inside the corresponding limiting hole, providing a limiting effect for the front and rear sides of the upper end of the support. The sliding sleeve and the deflecting limiting rod provide a limiting effect for the front and rear sides of the lower end of the support. This ensures that the paint booth can form an efficient limiting effect on the support without the need for external tracks during the opening and closing process, keeping the support stable during movement. When the electric push rod is working, the axial load is the main load, and the radial load becomes very small, making it less prone to damage.

[0016] 2. Connect two horizontally adjacent brackets together by using a locking plate, so that the brackets can no longer move left or right. The brackets form a limiting effect through the locking plate. When the paint booth is moved, the pulling force generated acts on the locking plate and will not act directly on the electric push rod, so that the electric push rod will not be easily damaged. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the flexible curtain of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the paint booth frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the telescopic mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting rod of this utility model;

[0022] Figure 6 This is a schematic diagram of the limiting component of this utility model;

[0023] Figure 7 This is a schematic diagram of the locking component of this utility model.

[0024] In the diagram: 1. Paint booth frame; 2. Soft curtain; 3. Bracket; 4. Support rod; 5. Telescopic mechanism; 51. Mounting block; 52. Connecting rod; 53. Slide groove; 54. Limiting component; 541. Fixing block; 542. Limiting block; 543. Limiting hole; 544. Limiting post; 545. Sleeve; 546. Limiting rod; 55. Locking component; 551. Locking plate; 552. Slide column; 553. Insertion hole; 554. Groove; 555. Protrusion; 556. Connecting bolt; 56. Electric push rod; 6. Moving wheel; 7. Skirt; 8. Rotating roller; 9. Door curtain; 10. Motor; 11. Air inlet pipe; 12. Exhaust pipe; 13. Microcontroller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-7 This embodiment provides a technical solution: a mobile spray booth, including a spray booth frame 1, two spray booth frames 1 arranged horizontally, a soft curtain 2 between the two spray booth frames 1, and evenly distributed brackets 3 fixedly connected to the outer surface of the soft curtain 2. Each bracket 3 has a movable wheel 6 at its lower end. The movable wheel 6 is a common type of universal caster with brake in the prior art. The movable wheel 6 provides a basis for the movement of the spray booth and the adjustment of the movement direction. Each of the two horizontally adjacent brackets 3 is provided with a support rod 4. The inner wall of the support rod 4 is fixedly connected to the outer surface of the soft curtain 2. It also includes a skirt 7. Skirts 7 are provided on the left and right sides of the lower end of the soft curtain 2. The skirts 7 are bent towards the side closer to the middle of the soft curtain 2 to provide a basis for the soft curtain 2 to contact the ground. It also includes a microcontroller 13. The microcontroller 13 is located at the lower front end of the right spray booth frame 1. The input end of the microcontroller 13 is electrically connected to an external power source to provide control for the spray booth. It also includes a telescopic mechanism 5.

[0027] Telescopic mechanism 5: It includes mounting block 51, connecting rod 52, slide groove 53, limiting component 54 and locking component 55. Mounting block 51 is fixedly sleeved on the upper part of the outer surface of the support rod 4 and the front and rear sides. Slide groove 53 is opened on the left and right sides of the bracket 3 respectively. Connecting rod 52 is slidably connected between two slide grooves 53 located on the left and right sides of the support rod 4 and adjacent to each other in the horizontal direction. The intersection of two vertically adjacent connecting rods 52 is rotatably connected to the side of the mounting block 51 away from the middle of the soft curtain 2, providing a basis for the opening and closing of the paint booth. The limiting component 54 is respectively set on the front and rear sides of the soft curtain 2. The locking component 55 is respectively set on the lower end of the front and rear sides of the soft curtain 2. The paint booth itself has a rigid limiting and locking structure, and can be opened and closed without the limitation of the track. The electric push rod 56 will not be directly subjected to force when moving later.

[0028] The limiting component 54 includes a fixing block 541, a limiting block 542, limiting holes 543, and limiting posts 544. The fixing blocks 541 are fixedly sleeved on the front and rear sides of the upper end of the outer surface of the support rod 4. The limiting blocks 542 are respectively disposed on the front and rear sides of the top wall of the bracket 3. The limiting holes 543 are respectively opened on the front and rear sides inside the limiting blocks 542. The limiting posts 544 are respectively disposed on the front and rear sides inside the fixing blocks 541. The outer surface of each limiting post 544 is slidably connected to the inner wall of the vertically adjacent limiting hole 543. Each fixing block 541 has two limiting posts 544, which are staggered front and rear. The ends of the limiting posts 544 that are close to the fixing block 541 are all located inside the fixing block 541, and the ends of the limiting posts 544 that are away from the fixing block 541 all protrude from the fixing block 541. This can ensure the limiting when the paint booth is being opened and closed, and also ensure that there is no interference between two horizontally adjacent limiting posts 544 when the paint booth is being closed. This provides a basis for the upper limiting when the paint booth is being opened and closed. The limiting component 54 also includes a sleeve 545 and a limiting rod 546. The sleeve 545 is slidably connected to the front and rear sides of the middle of the outer surface of the support rod 4, and the limiting rod 546 is rotatably connected between the sleeve 545 and the bracket 3. This provides a basis for the lower left and right limiting when the paint booth is being opened and closed.

[0029] The locking assembly 55 includes a locking plate 551, a sliding post 552, a socket 553, a groove 554, a protrusion 555, and a connecting bolt 556. The locking plate 551 is rotatably connected to the lower ends of the front and rear sides of the bracket 3. The sliding posts 552 are all slidably connected to the middle of the interior of the locking plate 551. The sockets 553 are all located in the middle right side of the interior of the locking plate 551, and the sliding posts 552 are all fitted with the sockets 553. The grooves 554 are all located in the middle left side of the interior of the locking plate 551. The protrusions 555 are all located at the lower end of the middle of the outer surface of the sliding post 552, and the outer surface of the protrusions 555 are all engaged with the inner wall of the vertically adjacent grooves 554. All connecting bolts 556 are threaded onto the inside left side of the locking plate 551. All connecting bolts 556 are installed in conjunction with the bracket 3. Bolt holes 1 are opened in the middle of both sides of the bracket 3, and bolt holes 2 are opened at the lower ends of both sides of the bracket 3. When the paint booth is in the retracted state, the locking plate 551 is tilted to the left, and the connecting bolts 556 are threaded onto the bolt holes 1 on the adjacent bracket 3 on the left. When the paint booth is in the extended state, the locking plate 551 is tilted to the left, and the connecting bolts 556 are threaded onto the bolt holes 2 on the adjacent bracket 3 on the left, providing a limiting effect for the rigid locking of the paint booth before and after retraction.

[0030] The telescopic mechanism 5 also includes an electric push rod 56, which is located at the upper middle part of the bracket 3. The input end of the electric push rod 56 is electrically connected to an external power source. There is an electric push rod 56 between each of the two brackets 3. The horizontally adjacent electric push rods 56 are staggered front and back to provide a driving effect for the opening and closing of the paint booth.

[0031] It also includes a motor 10. A rotating roller 8 is rotatably connected to the inside center of the paint booth frame 1 on the right side. A door curtain 9 is slidably connected to the inside center of the paint booth frame 1 on the right side. Limiting grooves are opened at the right ends of the front and rear side walls of the paint booth frame 1. The left and right sides of the door curtain 9 are slidably connected to the inner walls of the vertically adjacent limiting grooves. This can ensure that the door curtain 9 will not shift during the opening and closing process and can maximize the airtightness of the paint booth. The upper left side of the door curtain 9 is fixedly connected to the right side of the outer surface of the rotating roller 8. The motor 10 is set on the front inside the paint booth frame 1 on the right side. The input end of the motor 10 is electrically connected to the output end of the microcontroller 13. The rear end of the output shaft of the motor 10 is fixedly connected to the front end of the rotating roller 8. The soft curtain 2, the skirt 7 and the door curtain 9 are all made of high-strength PVC cloth, which provides a basis for the opening and closing of the door curtain 9.

[0032] An air inlet pipe 11 is provided on the upper right side of the paint booth frame 1 on the right side, and an exhaust pipe 12 is provided on the lower left side of the paint booth frame 1 on the left side, providing a basis for air circulation and exhaust gas purification in the paint booth.

[0033] The working principle of the mobile spray booth provided by this utility model is as follows: When using the mobile spray booth, lock the two rightmost moving wheels 6 and loosen the connecting bolts 556, so that the locking plate 551 on the front bracket 3 is separated from the rear bracket 3. The microcontroller 13 controls the electric push rod 56 to work, and the telescopic ends of all electric push rods 56 extend to the left at the same time, increasing the distance between the two horizontally adjacent brackets 3, and the soft curtain 2 also unfolds accordingly. At this time, as the bracket 3 moves, the included angle between the left and right sides of the two connecting rods 52 located on the same mounting block 51 gradually decreases with the movement of the bracket 3, providing a preliminary limiting effect for the movement of the two brackets 3, and keeping the support rod 4 always located in the middle of the two brackets 3. At the same time, the limiting post 544 is also in the corresponding limiting position. The sliding within hole 543 provides further limiting for the movement of bracket 3. Because the connecting rod 52 limits the movement, the support rod 4 remains in the middle of the two brackets 3, preventing the limiting post 544 from disengaging from the corresponding limiting hole 543. Simultaneously, as the bracket 3 moves, the limiting rod 546 deflects between the sleeve 545 and the bracket 3, causing the sleeve 545 to slide downwards until the paint booth is fully deployed. During this process, the connecting rod 52 provides the foundation for the paint booth's opening and closing, ensuring the support rod 4 remains in the middle of the two brackets 3, thus keeping the fixing block 541 in the middle of the two brackets 3. This allows the limiting post 544 to slide within the corresponding limiting hole 543, providing limiting for the front and rear sides of the upper end of the bracket 3. The sliding sleeve 54... The 5 and deflection limit rods 546 provide a limiting effect on the front and rear sides of the lower end of the bracket 3, thus ensuring that the paint booth can form an efficient limiting effect on the bracket 3 without the need for external tracks during the opening and closing process. This keeps the bracket 3 stable during movement, and thus ensures that the axial load is the main load when the electric push rod 56 is working. The stable movement of the bracket 3 makes the radial load on the electric push rod 56 very small and less prone to damage. When the paint booth is fully opened, the sliding column 552 is still inside the locking plate 551. First, deflect the leftmost locking plate 551 to the left, then align the upper connecting bolt 556 with the corresponding bolt hole two on the adjacent bracket 3 on the left, and tighten the connecting bolt 556 so that the connecting bolt 556 is threadedly connected to the corresponding bolt hole two. At this time, the left side The two brackets 3 are connected together by a locking plate 551. Then, rotate the adjacent locking plate 551 on the right, and at the same time, move the sliding pin 552 inside the locking plate 551 to the left, so that the left end of the sliding pin 552 is inserted into the insertion hole 553 on the right end of the adjacent locking plate 551 on the left, until the protrusion 555 and the groove 554 are vertically adjacent. At this time, rotate the protrusion 555 downward, which will also drive the sliding pin 552 downward, until the outer surface of the protrusion 555 is engaged in the corresponding groove 554. The sliding pin 552 is fixed and can no longer move left or right. At this time, the two locking plates 551 on the left are connected together and form a straight line. Then repeat this step to connect all the locking plates 551 together. At this time, all the connecting bolts 556 are aligned with the corresponding bolt holes.Then tighten all the connecting bolts 556 so that all the connecting bolts 556 are threaded into the bolt holes. At this time, the locking plate 551 is connected to the bracket 3, preventing the bracket 3 from moving left or right. Then, manually push or pull, or use a forklift to pull the paint booth, with the help of the moving wheels 6, to move the paint booth to a suitable position in the workshop. During this process, the bracket 3 forms a limiting effect through the locking plate 551. The pulling force generated when moving the paint booth acts on the locking plate 551 and will not directly act on the electric push rod 56, so that the electric push rod 56 will not be easily damaged. After the paint booth is moved to a suitable position, first connect the air inlet pipe 11 and the exhaust pipe 12 to the external air circulation equipment with a filter. The microcontroller 13 controls the motor 10 to run, and the output shaft of the motor 10 drives the rotating roller 8 to reverse. The curtain 9 is rolled up on the outer surface of the rotating roller 8, the spray booth is opened, and the skirt 7 is manually bent inward so that its lower end is flush with the ground, reducing the gap between the spray booth and the ground. Lighting and UV curing lamps can also be added to the top wall of the spray booth for illumination and subsequent workpiece curing. Then, the workpiece is pushed into the spray booth, and the rotating roller 8 rotates clockwise to lower the curtain 9, creating a relatively enclosed space. The workpiece is then manually coated using spray painting equipment. During this process, an external air circulation system with a filter sends filtered air into the spray booth through the air inlet pipe 11 and exhausts and purifies the exhaust gas through the exhaust pipe 12, achieving air circulation and exhaust gas purification. After the workpiece surface coating is completed, the UV curing lamp is turned on to accelerate the curing speed.

[0034] It is worth noting that the microcontroller 13 disclosed in the above embodiments is an STM32L011D4 microcontroller, the electric actuator 56 is an LBP electric actuator, and the motor 10 is a 51K90RGN-CF motor. The microcontroller 13 controls the operation of the electric actuator 56 and the motor 10 using methods commonly used in the prior art.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mobile spray booth, comprising a booth frame (1), wherein there are two booth frames (1) arranged laterally, a soft curtain (2) is provided between the two booth frames (1), and evenly distributed supports (3) are fixedly connected to the outer surface of the soft curtain (2), each support (3) having a caster wheel (6) at its lower end, and a support rod (4) is provided between each two laterally adjacent supports (3), the inner wall of the support rod (4) being fixedly connected to the outer surface of the soft curtain (2), characterized in that: It also includes a telescopic mechanism (5); Telescopic mechanism (5): It includes mounting block (51), connecting rod (52), slide groove (53), limiting component (54) and locking component (55). Mounting block (51) is fixedly sleeved on the upper end and front and rear sides of the outer surface of the support rod (4). Slide groove (53) is opened on the left and right sides of the bracket (3). Connecting rod (52) is slidably connected between two slide grooves (53) located on the left and right sides of the support rod (4) and adjacent in the horizontal direction. The intersection of two vertically adjacent connecting rods (52) is rotatably connected to the side of the mounting block (51) away from the middle of the soft curtain (2). The limiting component (54) is set on the front and rear sides of the soft curtain (2). The locking component (55) is set on the lower end of the front and rear sides of the soft curtain (2).

2. The mobile spray booth according to claim 1, characterized in that: It also includes a microcontroller (13), which is located at the lower front end of the paint booth frame (1) on the right side, and the input terminal of the microcontroller (13) is electrically connected to an external power source.

3. A mobile spray booth according to claim 1, characterized in that: The limiting component (54) includes a fixing block (541), a limiting block (542), a limiting hole (543), and a limiting post (544). The fixing block (541) is fixedly sleeved on the front and rear sides of the upper end of the outer surface of the support rod (4). The limiting block (542) is respectively set on the front and rear sides of the top wall of the bracket (3). The limiting hole (543) is respectively opened on the front and rear sides inside the limiting block (542). The limiting post (544) is respectively set on the front and rear sides inside the fixing block (541). The outer surface of the limiting post (544) is slidably connected to the inner wall of the vertically adjacent limiting hole (543).

4. A mobile spray booth according to claim 1, characterized in that: The limiting component (54) further includes a sleeve (545) and a limiting rod (546). The sleeve (545) is slidably connected to the front and rear sides of the middle of the outer surface of the support rod (4). The sleeve (545) and the bracket (3) are rotatably connected to the limiting rod (546).

5. A mobile spray booth according to claim 1, characterized in that: The locking assembly (55) includes a locking plate (551), a sliding post (552), a socket (553), a groove (554), a protrusion (555), and a connecting bolt (556). The locking plate (551) is rotatably connected to the lower ends of the front and rear sides of the bracket (3). The sliding posts (552) are all slidably connected to the middle of the interior of the locking plate (551). The sockets (553) are all opened in the middle of the right side of the interior of the locking plate (551). 52) All are installed in conjunction with the socket (553), the groove (554) is opened in the middle left of the inside of the locking plate (551), the protrusion (555) is set in the lower middle of the outer surface of the slide column (552), the outer surface of the protrusion (555) is engaged with the inner wall of the vertically adjacent groove (554), the connecting bolt (556) is threaded to the inside left of the locking plate (551), and the connecting bolt (556) is installed in conjunction with the bracket (3).

6. A mobile spray booth according to claim 2, characterized in that: The telescopic mechanism (5) also includes an electric push rod (56), which is located at the upper middle part of the bracket (3). The input end of the electric push rod (56) is electrically connected to an external power source.

7. A mobile spray booth according to claim 1, characterized in that: It also includes a skirt (7), with skirts (7) on both the left and right sides of the lower end of the soft curtain (2), and the skirts (7) are bent towards the side closer to the middle of the soft curtain (2).

8. A mobile spray booth according to claim 2, characterized in that: It also includes a motor (10), a rotating roller (8) is rotatably connected to the middle of the inside of the paint booth frame (1) on the right side, a door curtain (9) is slidably connected to the middle of the inside of the paint booth frame (1) on the right side, the upper left side of the door curtain (9) is fixedly connected to the right side of the outer surface of the rotating roller (8), the motor (10) is set on the front side of the inside of the paint booth frame (1) on the right side, the input end of the motor (10) is electrically connected to the output end of the microcontroller (13), and the rear end of the output shaft of the motor (10) is fixedly connected to the front end of the rotating roller (8).

9. A mobile spray booth according to claim 1, characterized in that: An air inlet pipe (11) is provided at the upper right end of the paint booth frame (1) on the right side, and an exhaust pipe (12) is provided at the lower left end of the paint booth frame (1) on the left side.

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