A dry spray booth

Abstract

This utility model discloses a dry spray booth, including a spray chamber, with the middle of the outer surface of the spray chamber fixedly connected to the interior of the floor. A collection hopper is fixedly connected to the lower end of the interior of the spray chamber, and a paint mist collection box is provided at the lower end of the collection hopper. Drive chambers are provided at both the left and right ends of the upper surface of the paint mist collection box. A locking mechanism is also included. The locking mechanism includes a rotating shaft, a locking handle, a notch, and a gear. The rotating shafts are symmetrically rotatably connected to the interior of the drive chambers. A locking handle is fixedly connected to the end of the rotating shaft near the center of the paint mist collection box. A connecting plate is fixedly connected to the lower end of the collection hopper. Evenly distributed guide ribs are fixedly connected to both the front and rear ends of the lower surface of the connecting plate. In this dry spray booth, the paint mist collection box and the connecting plate are slidably connected, and the relative position of the paint mist collection box and the connecting plate is locked by the locking mechanism, which facilitates the installation and disassembly of the paint mist collection box.

Description

Technical Field

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

[0002] Dry spray booths are equipment that uses dry paint mist separation technology to treat paint spray exhaust gas. They have advantages such as no water pollution, energy saving, easy maintenance, and low operating costs. They are widely used in the automotive, furniture, and machinery manufacturing industries. They achieve efficient paint mist capture and exhaust gas purification through a multi-stage filtration system.

[0003] In the prior art, patent CN217774551 U discloses a dry spray booth, including a spray chamber and a paint mist capturing area, respectively located above and below a grille; an air guide chamber is provided above the interior of the paint mist capturing area, and a first-stage paint mist filter is provided below the air guide chamber, with the first capturing port of the first-stage paint mist filter facing upward and connected to the air outlet of the air guide chamber; a second-stage paint mist filter is provided below the side of the first-stage paint mist filter, with the second capturing port of the second-stage paint mist filter connecting from the side to the first air outlet of the first-stage paint mist filter; the second air outlet of the second-stage paint mist filter is connected upward to an exhaust device;

[0004] This type of dry spray booth has some problems. For example, the paint mist collection box and the collection hopper are connected by evenly distributed bolts. When installing and disassembling the paint mist collection box, each bolt needs to be installed or removed in turn, which is a cumbersome process and affects the ease of installation and disassembly of the paint mist collection box and the collection hopper. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a dry spray booth in which the paint mist collection box and the connecting plate are slidably connected and the relative position of the paint mist collection box and the connecting plate is locked by a locking mechanism, which facilitates the installation and disassembly of the paint mist collection box and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dry spray booth, including a spray booth, the middle of the outer surface of the spray booth being fixedly connected to the interior of the floor, a collection hopper being fixedly connected to the lower end of the interior of the spray booth, a paint mist collection box being provided at the lower end of the collection hopper, a drive chamber being provided at both the left and right ends of the upper surface of the paint mist collection box, and a locking mechanism.

[0007] Locking mechanism: It includes a rotating shaft, a locking handle, a notch, and gears. The rotating shafts are symmetrically rotatably connected to the inside of the drive chamber. The end of the rotating shaft near the center of the paint mist collection box is fixedly connected to a locking handle. The lower end of the collection hopper is fixedly connected to a connecting plate. The front and rear ends of the lower surface of the connecting plate are fixedly connected to evenly distributed guide ribs. The front and rear ends of the upper surface of the paint mist collection box are provided with evenly distributed guide grooves. The guide ribs are installed in conjunction with adjacent guide grooves. The left and right ends of the connecting plate are provided with symmetrically distributed notches. The notches are installed in conjunction with vertically adjacent locking handles. Gears are fixedly connected to the middle of the outer surface of the rotating shaft. Two longitudinally adjacent gears are meshed. The gears are located inside adjacent drive chambers. The paint mist collection box and the connecting plate are slidably connected, and the relative position of the paint mist collection box and the connecting plate is locked by the locking mechanism, which facilitates the installation and disassembly of the paint mist collection box.

[0008] Furthermore, the locking mechanism also includes a drive handle and a locking pin. The drive handle is slidably connected to the ends of the two front rotating shafts away from the center of the paint mist collection box. The lower end of the drive handle is provided with a locking hole. Two locking pins are fixedly connected to the upper ends of the left and right surfaces of the paint mist collection box. The locking pins are installed in conjunction with the adjacent locking holes to lock the position of the rotating shafts, thereby locking the position of the locking handle and ensuring the stability of the relative position locking of the paint mist collection box and the connecting plate.

[0009] Furthermore, a dynamic pressure chamber is provided at the upper end of the spray painting chamber, and an acceleration bucket is provided inside the bottom plate of the dynamic pressure chamber. A static pressure chamber is provided at the upper end of the spray painting chamber, and a circular hole is provided inside the bottom plate of the static pressure chamber. The static pressure chamber is located below the dynamic pressure chamber. A support plate is fixedly connected to the middle of the spray painting chamber. A rectangular opening is provided inside the support plate. The upper surface of the support plate is at the same level as the floor, so that the incoming air force forms a uniform air curtain from top to bottom.

[0010] Furthermore, a controller is provided on the left end of the upper surface of the floor. The input terminal of the controller is electrically connected to an external power source to control various electrical appliances.

[0011] Furthermore, the upper end of the spray booth is provided with two symmetrically distributed fan slots, each fan slot is equipped with a fan, and the input ends of the two fans are electrically connected to the output end of the controller to introduce air from outside the spray booth into the spray booth.

[0012] Furthermore, the lower end of the spray booth is provided with symmetrically distributed air outlets. The lower ends of the left and right surfaces of the paint mist collection box are fixedly connected to connecting pipes. The outer arc surfaces of the connecting pipes are threaded with connectors. The end of the connector away from the center of the paint mist collection box and the adjacent air outlet are provided with air outlet hoses. The lower ends of the left and right surfaces of the spray booth are provided with fan slots II. Fans II are installed inside the fan slots II. The fan slots II are connected to the adjacent air outlets. The input ends of the two fans II are electrically connected to the output end of the controller, continuously creating a negative pressure environment inside the spray booth, so that the paint mist continuously flows into the paint mist collection box.

[0013] Furthermore, the interior of the paint mist collection box is fixedly connected with evenly distributed inverted V-shaped plates to reduce the flow speed of paint mist inside the collection box and improve the adhesion effect of the paint.

[0014] Furthermore, the front end of the spray booth is hinged with symmetrically distributed doors to control the opening and closing of the spray booth.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This dry spray booth has the following advantages:

[0016] The upper end of the paint mist collection box is first slidably connected to the connecting plate at the lower end of the collection hopper. Then, the adjacent rotating shaft is rotated by the drive handle, and under the transmission action of the gear mechanism, both locking handles rotate downward and enter the corresponding recesses, realizing the relative position locking of the paint mist collection box and the connecting plate. At the same time, the locking hole inside the locking handle is inserted into the corresponding locking pin to lock the position of the rotating shaft, ensuring the stability of the insertion of the locking handle and the recess, facilitating the installation and disassembly of the paint mist collection box, and facilitating the cleaning of paint adhering to the inside of the paint mist collection box by personnel, avoiding excessive paint accumulation that affects the subsequent paint mist separation effect. Attached Figure Description

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

[0018] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the connection between the collection hopper and the paint mist collection box of this utility model;

[0020] Figure 4 This is a schematic diagram of the paint mist collection box structure of this utility model;

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

[0022] Figure 6 This is an enlarged structural diagram of point A in this utility model.

[0023] In the diagram: 1 Spray booth, 2 Support plate, 3 Dynamic pressure chamber, 4 Static pressure chamber, 5 Collection hopper, 6 Paint mist collection box, 7 Locking mechanism, 71 Rotating shaft, 72 Locking handle, 73 Notch, 74 Drive handle, 75 Locking post, 76 Gear, 8 Inverted V-shaped plate, 9 Drive compartment, 10 Connecting plate, 11 Guide rib, 12 Connecting pipe, 13 Connector, 14 Air outlet hose, 15 Fan slot one, 16 Fan one, 17 Fan slot two, 18 Fan two, 19 Floor, 20 Door, 21 Controller. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 This embodiment provides a technical solution: a dry spray booth, including a spray booth 1, the middle of the outer surface of the spray booth 1 is fixedly connected to the interior of the floor 19, a collection hopper 5 is fixedly connected to the lower end of the interior of the spray booth 1, a paint mist collection box 6 is provided at the lower end of the collection hopper 5, an inverted V-shaped plate 8 is fixedly connected to the interior of the paint mist collection box 6, a drive chamber 9 is provided at both the left and right ends of the upper surface of the paint mist collection box 6, a controller 21 is provided at the left end of the upper surface of the floor 19, the input end of the controller 21 is electrically connected to an external power supply, and a locking mechanism 7 is also included.

[0026] Locking mechanism 7: It includes a rotating shaft 71, a locking handle 72, a notch 73, and a gear 76. The rotating shafts 71 are symmetrically rotatably connected to the inside of the drive chamber 9. The end of each rotating shaft 71 near the center of the paint mist collection box 6 is fixedly connected to a locking handle 72. The lower end of the collection hopper 5 is fixedly connected to a connecting plate 10. The front and rear ends of the lower surface of the connecting plate 10 are fixedly connected to evenly distributed guide ribs 11. The front and rear ends of the upper surface of the paint mist collection box 6 are provided with evenly distributed guide grooves. The guide ribs 11 are installed in conjunction with adjacent guide grooves. The left and right ends of the connecting plate 10 are provided with symmetrically distributed notches 73. The notches 73 are installed in conjunction with vertically adjacent locking handles 72. The middle of the outer surface of each rotating shaft 71 is fixedly connected to a gear 76. Both gears 76 are meshed and connected, and both gears 76 are located inside adjacent drive chambers 9. The locking mechanism 7 also includes a drive handle 74 and a locking pin 75. The drive handle 74 is slidably connected to the ends of the two front rotating shafts 71 away from the center of the paint mist collection box 6. The outer surface of the rotating shafts 71 away from the center of the paint mist collection box 6 is fixedly connected with symmetrically distributed ribs. The interior of the drive handle 74 is provided with symmetrically distributed rib grooves, which are slidably connected to adjacent ribs. The lower end of the drive handle 74 is provided with a locking hole. The upper ends of the left and right side surfaces of the paint mist collection box 6 are fixedly connected with two locking pins 75, which are installed in conjunction with adjacent locking holes. The paint mist collection box 6 is slidably connected to the connecting plate 10 from front to back. The lower guide ribs 11 all slide into the adjacent guide grooves at the upper end of the paint mist collection box 6. When the front end face of the paint mist collection box 6 and the front end face of the connecting plate 10 are on the same vertical plane, the rear end face of the paint mist collection box 6 and the rear end face of the connecting plate 10 are also on the same vertical plane. Then, the operator pulls the drive handle 74 away from the center of the paint mist collection box 6. The drive handle 74 slides on the outer surface of the adjacent rotating shaft 71 away from the center of the paint mist collection box 6. The locking holes inside the drive handle 74 are engaged with the adjacent rear locking pins 75. Then, the operator rotates the drive handle 74 backward. Since the rib grooves inside the drive handle 74 are slidably connected to the ribs on the outer surface of the adjacent rotating shaft 71, the backward rotation of the drive handle 74 drives the adjacent... The rotating shaft 71 rotates backward, and the rotation of the front rotating shaft 71 drives the adjacent gear 76 to rotate. The rotation of the front gear 76 drives the adjacent rear gear 76 to rotate, so that the two adjacent rotating shafts 71 rotate downward. The downward rotation of the rotating shafts 71 drives the adjacent locking handles 72 to rotate. The locking handles 72 are inserted into the interior of the adjacent recesses 73 to lock the longitudinal position of the paint mist collection box 6 and the connecting plate 10. Then, the personnel move the drive handle 74 towards the center of the paint mist collection box 6. The locking holes at the lower end of the drive handle 74 are inserted into the adjacent locking pins 75 to lock the position of the drive handle 74, thereby locking the position of the locking handle 72 and ensuring the stability of the relative position locking of the paint mist collection box 6 and the connecting plate 10.

[0027] The spray booth 1 has a dynamic pressure chamber 3 located at its upper end. The bottom plate of the dynamic pressure chamber 3 contains evenly distributed acceleration buckets. A static pressure chamber 4 is also located at its upper end. The bottom plate of the static pressure chamber 4 contains evenly distributed round holes. The static pressure chamber 4 is located below the dynamic pressure chamber 3. A support plate 2 is fixedly connected to the center of the spray booth 1. The support plate 2 has evenly distributed rectangular openings inside. The upper surface of the support plate 2 is flush with the floor 19. Two symmetrically distributed fan slots 15 are located at the upper end of the spray booth 1. (A filter screen can be connected to the upper end of the fan slot 15 with screws to prevent external impurities from entering the fan slot 15 and damaging the fan blades). A fan is installed inside each fan slot 15. The input terminals of both fans 16 are electrically connected to the output terminal of the controller 21. The controller 21 enables the operation of the fans 16. The fans 16 accelerate the outdoor air into the interior of the dynamic pressure chamber 3, forming an airflow with a high speed. The truncated pyramid-shaped acceleration bucket at the bottom of the dynamic pressure chamber 3 further accelerates the airflow as it passes through, ensuring that the air enters the static pressure chamber 4 at a uniform speed and direction. The evenly distributed round holes on the bottom plate of the static pressure chamber 4 disperse the kinetic energy of the airflow, reduce the airflow speed, and at the same time maintain the uniformity of the pressure inside the static pressure chamber 4. Under the treatment of the static pressure chamber 4, the airflow flows into the paint spraying chamber 1 in a laminar flow manner, forming an air curtain from top to bottom. The uniform air curtain can effectively control the paint mist generated during the painting process, prevent it from drifting around, and ensure the cleanliness of the painting environment.

[0028] The spray booth 1 has symmetrically distributed air outlets at its lower end. Connecting pipes 12 are fixedly connected to the lower ends of both sides of the paint mist collection box 6. Connecting heads 13 are threaded onto the outer arc surfaces of the connecting pipes 12. A flexible air outlet 14 is installed between the end of the connecting head 13 furthest from the center of the paint mist collection box 6 and the adjacent air outlet. Fan troughs 17 are installed at the lower ends of both sides of the spray booth 1. (Both ends of the fan troughs 17 can be connected to filters via screws to achieve secondary filtration of the indoor air and protect the fans 18.) Fans 18 are installed inside each fan trough 17. Each fan trough 17 is connected to the adjacent air outlet. Two fans... The input terminals of fan 18 are all electrically connected to the output terminals of controller 21. The paint mist enters the interior of collection hopper 5 through the rectangular opening inside support plate 2. Then, under the collection guidance of collection hopper 5, the paint mist is guided into the interior of paint mist collection box 6. The inverted V-shaped plates 8 evenly distributed inside paint mist collection box 6 change the airflow direction, causing large paint particles to settle and adhere to the outer surface of the inverted V-shaped plates 8 due to inertia. Finally, the paint particles move downward due to inertia and reach the external collection unit through the lower end of paint mist collection box 6. At the same time, controller 21 enables fan 18 to operate. Fan 18 extracts the air inside paint mist collection box 6 through the adjacent air outlet hose 14 and sends the gas after paint settling to the external air filtration equipment.

[0029] Among them: the front end of the spray booth 1 is hinged to symmetrically distributed doors 20. A pull-type door lock is installed at the connection between the two doors 20. The pull-type door lock is a mechanical lock with a hook-shaped lock tongue as the core component. The door frame is locked by pulling, thereby controlling the opening and closing of the two doors 20.

[0030] The working principle of the dry spray booth provided by this utility model is as follows: During operation, the operator first stably installs the spray booth 1, the dynamic pressure chamber 3, and other mechanisms into the interior of the floor 19. Then, the paint mist collection box 6 is slidably connected to the connecting plate 10 from front to back. The guide ribs 11 at the lower end of the connecting plate 10 slide into the adjacent guide grooves at the upper end of the paint mist collection box 6. When the front end face of the paint mist collection box 6 is on the same vertical plane as the front end face of the connecting plate 10, the rear end face of the paint mist collection box 6 is also on the same vertical plane as the rear end face of the connecting plate 10. Then, the operator pulls the drive handle 74 away from the center of the paint mist collection box 6. The drive handle 74 slides on the outer surface of the adjacent rotating shaft 71 in a direction away from the center of the paint mist collection box 6. 4. The internal locking holes are all inserted into the adjacent rear locking pins 75. Then, the operator rotates the drive handle 74 backward. Since the rib grooves inside the drive handle 74 are slidably connected to the ribs on the outer surface of the adjacent rotating shafts 71, the backward rotation of the drive handle 74 drives the adjacent rotating shafts 71 to rotate backward. The backward rotation of the front rotating shaft 71 drives the adjacent gear 76 to rotate. The rotation of the front gear 76 drives the adjacent rear gear 76 to rotate, causing both adjacent rotating shafts 71 to rotate downward. The downward rotation of the rotating shafts 71 drives the adjacent locking handles 72 to rotate. The locking handles 72 are inserted into the interior of the adjacent recesses 73, realizing the longitudinal locking of the paint mist collection box 6 and the connecting plate 10. Then, the operator moves the drive handle towards the center of the paint mist collection box 6. 74. The locking holes at the lower end of the drive handle 74 are all inserted into the adjacent locking pins 75 to lock the position of the drive handle 74, thereby locking the position of the locking handle 72, ensuring the stability of the relative position locking of the paint mist collection box 6 and the connecting plate 10. While the painting work is being carried out inside the spray booth 1, the controller 21 activates the fan 16. The fan 16 accelerates the outdoor air into the dynamic pressure chamber 3, forming a high-speed airflow. The frustum-shaped acceleration bucket at the bottom of the dynamic pressure chamber 3 further accelerates the airflow as it passes through, ensuring that the air enters the static pressure chamber 4 at a uniform speed and direction. The evenly distributed round holes on the bottom plate of the static pressure chamber 4 disperse the kinetic energy of the airflow, reduce the airflow speed, and maintain the uniformity of the pressure inside the static pressure chamber 4. Under the processing of the static pressure chamber 4, the airflow... The paint mist flows evenly into the spray booth 1 in a laminar flow manner, forming a top-down air curtain. This uniform air curtain effectively controls the paint mist generated during the spraying process, preventing it from spreading and ensuring the cleanliness of the spraying environment. The paint mist enters the collection hopper 5 through the rectangular opening inside the support plate 2, and is then guided into the paint mist collection box 6 by the collection hopper 5. The inverted V-shaped plates 8 evenly distributed inside the paint mist collection box 6 change the airflow direction, causing large paint particles to settle and adhere to the outer surface of the inverted V-shaped plates 8 due to inertia. Finally, the paint particles move downwards due to inertia and reach the external collection unit through the lower end of the paint mist collection box 6. At the same time, the controller 21 activates the second fan 18, which extracts air from inside the paint mist collection box 6 through the adjacent exhaust hose 14.The gas released after the paint settles is then directed to an external air filtration system.

[0031] It is worth noting that the controller 21 disclosed in the above embodiments controls the operation of the first fan 16 and the second fan 18 using methods commonly used in the prior art.

[0032] 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 dry spray booth, comprising a spray chamber (1), wherein the middle part of the outer surface of the spray chamber (1) is fixedly connected to the interior of a floor (19), a collection hopper (5) is fixedly connected to the lower end of the interior of the spray chamber (1), a paint mist collection box (6) is provided at the lower end of the collection hopper (5), and a drive chamber (9) is provided at both the left and right ends of the upper surface of the paint mist collection box (6), characterized in that: It also includes a locking mechanism (7); Locking mechanism (7): It includes a rotating shaft (71), a locking handle (72), a notch (73), and a gear (76). The rotating shafts (71) are symmetrically rotatably connected to the inside of the drive chamber (9). The end of the rotating shaft (71) near the center of the paint mist collection box (6) is fixedly connected to the locking handle (72). The lower end of the collection hopper (5) is fixedly connected to the connecting plate (10). The front and rear ends of the lower surface of the connecting plate (10) are fixedly connected to evenly distributed guide ribs (11). The paint mist collection box (6) The front and rear ends of the upper surface are provided with evenly distributed guide grooves. The guide ribs (11) are installed in conjunction with the adjacent guide grooves. The left and right ends of the connecting plate (10) are provided with symmetrically distributed notches (73). The notches (73) are installed in conjunction with the vertically adjacent locking handles (72). The middle part of the outer surface of the rotating shaft (71) is fixedly connected with gears (76). The two longitudinally adjacent gears (76) are meshed and connected. The gears (76) are located inside the adjacent drive chambers (9).

2. A dry spray booth according to claim 1, wherein: The locking mechanism (7) further includes a drive handle (74) and a locking pin (75). The drive handle (74) is slidably connected to the ends of the two rotating shafts (71) on the front side away from the center of the paint mist collection box (6). The lower end of the drive handle (74) is provided with a locking hole. The upper ends of the left and right surfaces of the paint mist collection box (6) are fixedly connected to two locking pins (75). The locking pins (75) are installed in conjunction with the adjacent locking holes.

3. A dry spray booth according to claim 1, wherein: The upper part of the spray booth (1) is provided with a dynamic pressure chamber (3), and the bottom plate of the dynamic pressure chamber (3) is provided with uniformly distributed acceleration buckets. The upper part of the spray booth (1) is provided with a static pressure chamber (4), and the bottom plate of the static pressure chamber (4) is provided with uniformly distributed round holes. The static pressure chamber (4) is located below the dynamic pressure chamber (3). A support plate (2) is fixedly connected to the middle part of the spray booth (1). The support plate (2) is provided with uniformly distributed rectangular openings. The upper surface of the support plate (2) is at the same level as the floor (19).

4. A dry spray booth according to claim 1, wherein: A controller (21) is provided on the left end of the upper surface of the floor (19), and the input terminal of the controller (21) is electrically connected to an external power source.

5. A dry spray booth according to claim 4, wherein: The upper end of the spray booth (1) is provided with two symmetrically distributed fan slots (15), and each fan slot (15) is provided with a fan (16). The input ends of the two fans (16) are electrically connected to the output end of the controller (21).

6. A dry spray booth according to claim 4, wherein: The lower end of the spray booth (1) is provided with symmetrically distributed air outlets. The lower ends of the left and right surfaces of the paint mist collection box (6) are fixedly connected with connecting pipes (12). The outer arc surface of the connecting pipes (12) is threaded with connectors (13). The end of the connector (13) away from the center of the paint mist collection box (6) and the adjacent air outlet are provided with air outlet hoses (14). The lower ends of the left and right surfaces of the spray booth (1) are provided with fan slots (17). Fans (18) are provided inside the fan slots (17). The fan slots (17) are connected to the adjacent air outlets. The input ends of the two fans (18) are electrically connected to the output end of the controller (21).

7. A dry spray booth according to claim 1 wherein: The paint mist collection box (6) is fixedly connected to a uniformly distributed inverted V-shaped plate (8).

8. A dry spray booth according to claim 1, wherein: The front end of the spray booth (1) is hinged to symmetrically distributed doors (20).

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