High-efficiency clinical medical examination smear equipment

Abstract

The invention relates to the technical field of medical examination, and discloses high-efficiency clinical medical examination smear equipment which comprises a supporting table, supporting blocks in bilateral symmetry are fixedly connected to the upper surface of the supporting table, a first motor is fixedly connected to one side of the outer wall of one supporting block, and a first lead screw is fixedly connected to the output end of the first motor; and one end of the first lead screw is rotationally connected to the interior of the other supporting block, supporting sliding rails in bilateral symmetry are fixedly connected to the positions, adjacent to the outer side of the first lead screw, of the upper surface of the supporting table, and a moving plate is slidably connected to the upper surfaces of the supporting sliding rails. A plurality of sliding blocks on a first limiting sliding rail and a second limiting sliding rail are adjusted to adapt to glass slides of different sizes, positioning is conducted through fastening bolts, a hydraulic rod pushes a fixing plate to enable a second limiting wheel to tightly press the glass slides after placement, and rapid positioning and efficient detection are achieved; meanwhile, the first motor drives the first lead screw to drive the movable plate to move in a reciprocating mode, the glass slides can be synchronously placed at multiple stations, and the detection efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household kitchens, in particular to a high-efficiency clinical medical examination smear device. Background Art

[0002] With the growing demand for clinical medical testing, smears, as a fundamental step in pathological analysis and microbiological testing, are placing higher demands on smear quality and efficiency. To improve the consistency and standardization of sample preparation, smear equipment is gradually moving towards automation, batch production, and precision. Smear equipment typically includes a slide placement platform, a smear mechanism, and a sample delivery system. Through mechanical transmission and intelligent control, it achieves uniform spreading and pretreatment of slide samples to meet the needs of subsequent microscopic observation and analysis.

[0003] Existing smear equipment generally adopts a single manual placement mode for glass slides, usually controlling the position adjustment of the slide and the uniform spreading of the sample through a fixed bracket, a mechanical sliding device, and a hydraulic or electric pushing structure. The placement and positioning of the slide generally rely on the adjustment of a single station, which is difficult to quickly adapt and efficiently fix according to the size differences of the slides, resulting in long placement time and inaccurate positioning. It is also difficult to achieve multi-station parallel operation, which directly affects the overall detection speed and smear consistency. Therefore, there is an urgent need for a high-efficiency clinical medical test smear equipment that can quickly adapt to slides of different specifications and realize multi-station synchronous placement and detection to improve the overall inspection efficiency and shorten the preparation cycle. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a high-efficiency clinical medical examination smear equipment, which solves the problem that the placement and positioning of slides generally rely on the adjustment of a single workstation, making it difficult to quickly adapt and efficiently fix according to the size differences of the slides, resulting in long placement time and inaccurate positioning.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-efficiency clinical medical examination smear equipment, comprising a support table, a left-right symmetrical support block is fixedly connected to the upper surface of the support table, a motor is fixedly connected to one side of the outer wall of one of the support blocks, a screw rod is fixedly connected to the output end of the motor, one end of the screw rod is rotatably connected to the inside of the other support block, a left-right symmetrical support slide is fixedly connected to the outer side of the adjacent screw rod one on the upper surface of the support table, a movable plate is slidably connected to the upper surface of the support slide, a coating head is provided just above the movable plate, a threaded sleeve is fixedly connected to the lower surface of the movable plate, the threaded sleeve is threadedly connected to the screw rod one, and a plurality of positioning components are installed on the upper surface of the movable plate;

[0006] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame of the L-shaped support.

[0007] Preferably, a support plate is fixedly connected to the upper surface of the support platform, an adjustment component is installed on the upper surface of the support plate, and a filter component is installed on a side of the upper surface of the support platform adjacent to the support plate.

[0008] Preferably, the adjustment component includes motor 2, screw 2 and a sliding frame, one side of the outer wall of motor 2 is fixedly connected to one side of the outer wall of the support plate, the output end of motor 2 is fixedly connected to screw 2, the outer wall of screw 2 is threadedly connected to the sliding frame, and the inner wall of the sliding frame is slidably connected to the outer wall of the support plate.

[0009] Preferably, a hydraulic cylinder is fixedly connected to one side of the outer wall of the sliding frame, and an output end of the hydraulic cylinder is fixedly connected to the second connecting frame. The coating head is arranged inside the second connecting frame.

[0010] Preferably, the filter assembly includes a filter box, a filter plate and a fan. The lower surface of the filter box is fixedly connected to the upper surface of the support platform. The filter plate is slidably connected to the upper side of the filter box. The fan is installed through the filter box. The outer wall cover of the fan is provided with a dust cover. A quick-release assembly is installed inside the filter box.

[0011] Preferably, the quick-release assembly includes two limiting slide rods, a Z-shaped frame and a spring, both ends of the two limiting slide rods are fixedly connected to the inner wall of the filter box, the inner wall of the Z-shaped frame is slidably connected between the two limiting slide rods, and the spring is sleeved on the outer wall of the lower limiting slide rod.

[0012] Preferably, a transmission hose is fixedly connected to the upper surface of the filter box, and one end of the transmission hose is fixedly connected to a nozzle.

[0013] Preferably, the filter box and the filter plate are locked by a latch, and one side of the outer wall of the filter plate abuts against one side of the outer wall of the Z-shaped frame.

[0014] Preferably, one end of the spring is fixedly connected to one side of the inner wall of the filter box, and the other end of the spring is fixedly connected to the other side of the outer wall of the Z-shaped frame.

[0015] Preferably, one side of the outer wall of the nozzle is fixedly connected to one side of the second outer wall of the connecting frame, and the air outlet of the nozzle is arranged on one side of the coating head.

[0016] Working principle: When the smear device is needed, the slide is placed above the connecting plate, and the hydraulic rod is started to push the limiting wheel 2 on one side of the fixed plate to contact the slide close to the outside of the limiting wheel 1. At the same time, the limiting wheel 1 can be adjusted according to the size of the slide by tightening the bolt. At this time, the motor 1 is started to drive the movable plate outside the threaded sleeve to move, and the screw 1 drives the movable plate to reciprocate, thereby achieving the effect of placing the slides at multiple stations at the same time. At this time, the motor 2 is started to drive the screw 2 so that the sliding frame drives the coating head on the side of the connecting frame 2 to move above the slide. The hydraulic cylinder drives the second connecting frame to make the coating head contact the top of the glass slide to achieve the smearing effect. At the same time, after the smearing is completed, the external air is filtered through the dust cover by starting the fan and then transmitted to the inside of the filter box. The transmission hose and the nozzle are then used in conjunction to achieve the effect of efficiently drying the coating liquid on the surface of the glass slide. At the same time, the cooperation of the filter plate can achieve the effect of double filtration. At the same time, by pulling the pin, the reaction force of the spring is used to drive the filter plate on one side of the Z-shaped frame to slide outside the limit slide bar, and the reaction force of the spring is used to drive the filter plate to be quickly disassembled.

[0017] The present invention provides a high-efficiency clinical medical examination smear device. It has the following beneficial effects:

[0018] 1. The present invention places a glass slide on the connecting plate and adjusts multiple sliders on the outside of the limiting slide rail 1 and the limiting slide rail 2. The multiple sliders are adjusted according to the different sizes of the glass slides, and the positions of the sliders are positioned by tightening bolts. After the placement is completed, the fixed plate is pushed by the hydraulic rod so that the limiting wheel 2 contacts the outside of the glass slide, thereby achieving rapid positioning, efficient detection and shortening the placement time. At the same time, the movable plate is driven to move back and forth by the motor 1 and the screw rod 1, so that the glass slides can be placed at multiple workstations at the same time, thereby further improving the detection efficiency.

[0019] 2. The present invention realizes the automatic adjustment function of the height position of the coating head by introducing the support plate and the adjustment component, especially the cooperation of the second motor, the second screw rod, the sliding frame and the hydraulic cylinder. The coating head, supported by the second connecting frame, can be flexibly adjusted according to the thickness and type of different samples, thereby improving the adaptability of the equipment and the uniformity of the smear. At the same time, the filter assembly arranged on the support table includes a filter box, a filter plate and a fan, which can continuously extract and purify air during the smearing and drying process, timely filter particulate impurities and volatile components in the air, prevent the spread of pollution, ensure the cleanliness of the operating environment, and improve the safety of clinical use. The addition of the quick-release assembly makes the disassembly and maintenance of the filter plate more convenient, and improves the overall maintenance efficiency and service life of the equipment.

[0020] 3. The present invention realizes the local directional air supply function through the transmission hose and nozzle on the filter box. The nozzle is set near the smear head, and the smear surface can be quickly blown dry after the smear is completed, which greatly shortens the sample drying time and improves work efficiency. The cooperation of the Z-shaped frame and the spring in the quick-release assembly allows the filter plate to return to its original position elastically during disassembly, avoiding damage or dislocation during manual disassembly. At the same time, the latch design effectively locks the filter plate to ensure the stability of the internal components during the operation of the equipment. In addition, the modular design of the overall structure is convenient for later upgrades and maintenance, and the functional units do not interfere with each other, which not only improves the convenience of use, but also improves the reliability and durability of the overall equipment, fully meeting the actual needs of high-efficiency clinical testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of a part of the screw rod of the present invention;

[0023] Figure 3 This is a schematic diagram of the two-part structure of the position limiting slide rail of the present invention;

[0024] Figure 4 It is a partial structural diagram of the filter box of the present invention;

[0025] Figure 5 It is a partial structural diagram of the filter plate of the present invention;

[0026] Figure 6 for Figure 5 A is an enlarged schematic diagram.

[0027] Among them, 1. Support platform; 2. Support block; 3. Motor 1; 4. Screw 1; 5. Threaded sleeve; 6. Support slide rail; 7. Moving plate; 8. Connecting plate; 9. Limiting slide rail 1; 10. Slider; 11. Limiting wheel 1; 12. Fastening bolt; 13. Limiting slide rail 2; 14. L-shaped bracket; 15. Fixed block; 16. Limiting rod; 17. Hydraulic rod; 18. Fixed plate; 19. Connecting frame 1; 20. Limiting wheel 2; 21. Support plate; 22. Motor 2; 23. Screw 2; 24. Hydraulic cylinder; 25. Connecting frame 2; 26. Sliding frame; 27. Coating head; 28. Filter box; 29. Filter plate; 30. Limiting slide rail; 31. Z-shaped frame; 32. Spring; 33. Latch; 34. Fan; 35. Dust cover; 36. Transmission hose; 37. Nozzle. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example:

[0030] Please see the attached Figure 1 -Attached Figure 6, an embodiment of the present invention provides a high-efficiency clinical medical examination smear device, including a support table 1, the support table 1 is used to support the overall device structure, the upper surface of the support table 1 is fixedly connected to a left-right symmetrical support block 2, the support block 2 is used to install and support both ends of a screw rod 4, one side of the outer wall of a support block 2 is fixedly connected to a motor 3, the motor 3 is used to provide rotational power to drive the screw rod 4 to rotate, the output end of the motor 3 is fixedly connected to the screw rod 4, the screw rod 4 is used to drive the moving plate 7 to move back and forth, one end of the screw rod 4 is rotatably connected to the inside of another support block 2 to ensure that the screw rod 4 is stably supported during rotation, the outer side of the adjacent screw rod 4 on the upper surface of the support table 1 is fixedly connected to a left-right symmetrical support slide 6, the support slide 6 is used to guide The guide movable plate 7 slides along the fixed track, and the upper surface of the supporting slide rail 6 is slidably connected to the movable plate 7. The movable plate 7 serves as a movable platform for the glass slide. A coating head 27 is provided just above the movable plate 7. The coating head 27 is used to perform smear processing on the glass slide. The lower surface of the movable plate 7 is fixedly connected to a threaded sleeve 5, and the threaded sleeve 5 is threadedly connected to the screw rod 4 to realize the movement of the movable plate 7 back and forth as the screw rod 4 rotates. A plurality of positioning components are installed on the upper surface of the movable plate 7 for fast and accurate positioning of the glass slide; the positioning component includes a connecting plate 8, an L-shaped bracket 14, a hydraulic rod 17, a fixed plate 18 and a limiting wheel 20. One side of the outer wall of the connecting plate 8 is fixedly connected to the upper surface of the movable plate 7 for serving as the basis for connecting various limiting and positioning elements. The outer wall of the L-shaped bracket 14 One side is fixedly connected to one side of the outer wall of the connecting plate 8, the L-shaped bracket 14 is used to carry the hydraulic rod 17 and ensure its stable movement, the limiting wheel 20 is arranged on one side of the outer wall of the fixed plate 18, and the limiting wheel 20 is used to limit and fix the side of the slide to prevent deviation. The upper surface of the connecting plate 8 is fixedly connected with a fixing block 15, and the fixing block 15 is used to support one end of the limiting rod 16. The limiting rod 16 is fixedly connected between the fixing block 15 and the L-shaped bracket 14. The limiting rod 16 serves as a movable limiting structure. One side of the outer wall of the limiting rod 16 is slidably connected to a connecting frame 19, and the connecting frame 19 serves as a guiding connection structure for the movement of the limiting rod 16. One side of the outer wall of the connecting frame 19 is fixedly connected to one side of the outer wall of the fixing plate 18 to stabilize the connection of the fixing plate 18 Relationship, the upper surface of the connecting plate 8 is fixedly connected to the limiting slide rail 19 on the side relative to the limiting wheel 20, and the limiting slide rail 19 serves as a guide rail for the movement of the slider 10. The upper surface of the connecting plate 8 is fixedly connected to the limiting slide rail 2 13 on the side adjacent to the limiting slide rail 9, and the limiting slide rail 2 13 serves as an auxiliary guide slide. The outer walls of the limiting slide rail 19 and the limiting slide rail 2 13 are both slidably connected with left-right symmetrical sliders 10, and the sliders 10 are used to adjust the clamping width of slides of different specifications. One side of the outer wall of the slider 10 is rotatably connected to the limiting wheel 11, and the limiting wheel 11 is used to assist in sliding positioning to improve the limiting reliability. The upper surface of the slider 10 is threadedly connected with a fastening bolt 12, and the fastening bolt 12 is used to lock the position of the slider 10 to ensure a stable clamping state.

[0031] Specifically, through the reasonable configuration of the above structure, the overall rapid positioning, precise limiting, multi-specification adaptation and stable sliding control of the slide are achieved; the motor 3 drives the screw 4 to rotate, and the movable plate 7 moves steadily left and right under the guidance of the supporting slide rail 6, and cooperates with the positioning component to achieve efficient placement and detection of multiple slides, effectively improving the speed and quality of smear preparation, shortening the operation time, and significantly improving the convenience of equipment use and detection efficiency.

[0032] In one embodiment, a support plate 21 is fixedly connected to the upper surface of the support platform 1, and the support plate 21 is used to support and install an adjustment component. An adjustment component is installed on the upper surface of the support plate 21, which is used to drive the coating head 27 to adjust left and right. A filter component is installed on one side of the upper surface of the support platform 1 adjacent to the support plate 21, and the filter component is used to achieve gas purification; the adjustment component includes a second motor 22, a second screw rod 23 and a sliding frame 26. One side of the outer wall of the second motor 22 is fixedly connected to one side of the outer wall of the support plate 21, which is used to provide rotational power for the second screw rod 23. The output end of the second motor 22 is fixedly connected to the second screw rod 23. The second screw rod 23 is used to drive the sliding frame 26 to move left and right. The outer wall of the second screw rod 23 is threadedly connected to the sliding frame 26 to achieve the rotation of the screw rod. The sliding frame 26 moves linearly, and the inner wall of the sliding frame 26 is slidably connected to the outer wall of the support plate 21 to ensure smooth sliding. One side of the outer wall of the sliding frame 26 is fixedly connected to a hydraulic cylinder 24, which is used to further drive the connecting frame 25 for precise positioning. The output end of the hydraulic cylinder 24 is fixedly connected to the connecting frame 25, and the connecting frame 25 is used to install a coating head 27. The coating head 27 is arranged inside the connecting frame 25, and the coating head 27 is used to perform a uniform smear operation on the slide. The filter assembly includes a filter box 28, a filter plate 29 and a fan 34. The lower surface of the filter box 28 is fixedly connected to the upper surface of the support platform 1 for fixedly supporting the entire filter module. The upper side of the filter box 28 is slidably connected to the filter plate 29. The filter plate 29 is used to To filter dust, a fan 34 is provided inside the filter box 28. The fan 34 is used to suck the air outside the equipment and guide it through the filter plate 29. The outer wall of the fan 34 is provided with a dust cover 35. The dust cover 35 is used to prevent the fan 34 from sucking in dust or impurities and damaging the internal components. A quick-release assembly is installed inside the filter box 28 to facilitate quick replacement and maintenance of the filter plate 29; the quick-release assembly includes two limit slide bars 30, a Z-shaped frame 31 and a spring 32. Both ends of the two limit slide bars 30 are fixedly connected to the inner wall of the filter box 28 to guide the Z-shaped frame 31 to move stably. The inner wall of the Z-shaped frame 31 is slidably connected between the two limit slide bars 30 to achieve the clamping limit of the filter plate 29. The spring 32 is sleeved on the outer wall of the lower limit slide bar 30 to The Z-shaped frame 31 provides an elastic reset force; a transmission hose 36 is fixedly connected to the upper surface of the filter box 28, and the transmission hose 36 is used to transmit the purified gas. One end of the transmission hose 36 is fixedly connected to a nozzle 37, and the nozzle 37 is used to blow the air flow to the coating head 27 area to clean residues or assist in drying; the filter box 28 and the filter plate 29 are locked by a latch 33, and the latch 33 is used to quickly disassemble the filter plate 29. One side of the outer wall of the filter plate 29 abuts against one side of the outer wall of the Z-shaped frame 31, which is used to stabilize the installation position of the filter plate 29; one end of the spring 32 is fixedly connected to one side of the inner wall of the filter box 28, and the other end of the spring 32 is fixedly connected to the other side of the outer wall of the Z-shaped frame 31. The spring 32 is used to keep the Z-shaped frame 31 in a pre-tightened state of clamping the filter plate 29;One side of the outer wall of the nozzle 37 is fixedly connected to the outer wall of the second connecting frame 25 to ensure that the nozzle 37 is fixedly matched with the coating head 27. The air outlet of the nozzle 37 is set on the side of the coating head 27 to facilitate auxiliary processing of the slide.

[0033] Specifically, through the organic coordination of the above-mentioned structures, this equipment can realize rapid positioning of glass slides during smearing, adaptation to multiple specifications, precise control of smearing, and timely purification during smearing, and realize modular quick disassembly and maintenance of the filter device, which greatly improves the smearing efficiency and the overall practicality of the equipment, while improving the safety of the experimental environment and the stability of the test results.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency clinical medical examination smear device, comprising a support table (1), characterized in that: The upper surface of the support platform (1) is fixedly connected to a left-right symmetrical support block (2), one side of the outer wall of one of the support blocks (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a screw rod (4), one end of the screw rod (4) is rotatably connected to the inside of the other support block (2), the outer side of the adjacent screw rod (4) on the upper surface of the support platform (1) is fixedly connected to a left-right symmetrical support slide rail (6), the upper surface of the support slide rail (6) is slidably connected to a movable plate (7), a coating head (27) is provided just above the movable plate (7), the lower surface of the movable plate (7) is fixedly connected to a threaded sleeve (5), the threaded sleeve (5) is threadedly connected to the screw rod (4), and a plurality of positioning components are installed on the upper surface of the movable plate (7); The positioning assembly comprises a connecting plate (8), an L-shaped bracket (14), a hydraulic rod (17), a fixed plate (18) and a second limiting wheel (20), wherein one side of the outer wall of the connecting plate (8) is fixedly connected to the upper surface of the movable plate (7), one side of the outer wall of the L-shaped bracket (14) is fixedly connected to one side of the outer wall of the connecting plate (8), the second limiting wheel (20) is arranged on one side of the outer wall of the fixing plate (18), the upper surface of the connecting plate (8) is fixedly connected with a fixing block (15), a limiting rod (16) is fixedly connected between the fixing block (15) and the L-shaped bracket (14), and one side of the outer wall of the limiting rod (16) is slidably connected to A connecting frame (19), one side of the outer wall of the connecting frame (19) is fixedly connected to one side of the outer wall of the fixed plate (18), the upper surface of the connecting plate (8) is fixedly connected to the limiting slide rail (9) on the side opposite to the limiting wheel (20), the upper surface of the connecting plate (8) is fixedly connected to the limiting slide rail (13) on the side adjacent to the limiting slide rail (9), the outer walls of the limiting slide rail (9) and the limiting slide rail (13) are both slidably connected to left and right symmetrical sliders (10), one side of the outer wall of the slider (10) is rotatably connected to the limiting wheel (11), and the upper surface of the slider (10) is threadedly connected to a fastening bolt (12).

2. A high-efficiency clinical medical examination smear device according to claim 1, characterized in that: The upper surface of the support platform (1) is fixedly connected to a support plate (21), an adjustment component is installed on the upper surface of the support plate (21), and a filter component is installed on the side of the upper surface of the support platform (1) adjacent to the support plate (21).

3. A high-efficiency clinical medical examination smear device according to claim 2, characterized in that: The adjustment assembly comprises a second motor (22), a second screw rod (23) and a sliding frame (26); one side of the outer wall of the second motor (22) is fixedly connected to one side of the outer wall of the support plate (21); the output end of the second motor (22) is fixedly connected to the second screw rod (23); the outer wall of the second screw rod (23) is threadedly connected to the sliding frame (26); and the inner wall of the sliding frame (26) is slidably connected to the outer wall of the support plate (21).

4. A high-efficiency clinical medical examination smear device according to claim 3, characterized in that: One side of the outer wall of the sliding frame (26) is fixedly connected to a hydraulic cylinder (24), and the output end of the hydraulic cylinder (24) is fixedly connected to a second connecting frame (25). The coating head (27) is arranged inside the second connecting frame (25).

5. A high-efficiency clinical medical examination smear device according to claim 4, characterized in that: The filter assembly comprises a filter box (28), a filter plate (29) and a fan (34); the lower surface of the filter box (28) is fixedly connected to the upper surface of the support platform (1); the filter plate (29) is slidably connected to the upper side of the filter box (28); the fan (34) is provided through the filter box (28); the outer wall cover of the fan (34) is provided with a dust cover (35); and a quick-release assembly is installed inside the filter box (28).

6. A high-efficiency clinical medical examination smear device according to claim 5, characterized in that: The quick-release assembly comprises two limiting slide bars (30), a Z-shaped frame (31) and a spring (32). Both ends of the two limiting slide bars (30) are fixedly connected to the inner wall of the filter box (28). The inner wall of the Z-shaped frame (31) is slidably connected between the two limiting slide bars (30). The spring (32) is sleeved on the outer wall of the lower limiting slide bar (30).

7. A high-efficiency clinical medical examination smear device according to claim 6, characterized in that: A transmission hose (36) is fixedly connected to the upper surface of the filter box (28), and one end of the transmission hose (36) is fixedly connected to a nozzle (37).

8. The high-efficiency clinical medical examination smear equipment according to claim 6, characterized in that: The filter box (28) and the filter plate (29) are locked by a latch (33), and one side of the outer wall of the filter plate (29) abuts against one side of the outer wall of the Z-shaped frame (31).

9. The high-efficiency clinical medical examination smear equipment according to claim 6, characterized in that: One end of the spring (32) is fixedly connected to one side of the inner wall of the filter box (28), and the other end of the spring (32) is fixedly connected to the other side of the outer wall of the Z-shaped frame (31).

10. The high-efficiency clinical medical examination smear equipment according to claim 7, characterized in that: One side of the outer wall of the nozzle (37) is fixedly connected to one side of the outer wall of the second connecting frame (25), and the air outlet of the nozzle (37) is arranged on one side of the coating head (27).

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