Civil air defense door frame and door leaf spraying device
By combining alternating support mechanisms and translation mechanisms, the problem of uneven coating on air-raid shelter doors was solved, achieving efficient and stable coating results and improving coating quality and efficiency.
Patent Information
- Application Number
- CN202520452925.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-15
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-15
AI Technical Summary
In the existing painting process for air-raid shelter doors, the fixed support method leads to uneven spraying, requires complex manual operation, is inefficient and prone to defects, and makes it difficult to achieve efficient and uniform spraying results.
The alternating support mechanism and translation mechanism, combined with the electric slide rail, enable the spraying mechanism to move in all directions and switch states. The support part is driven to move up and down alternately by the hydraulic rod, and the spraying part can work in a horizontal or vertical state. Combined with the electric slide rail and translation mechanism, it can achieve full coverage spraying of the door frame and door leaf.
It achieves efficient all-round spraying of door frames and door panels, avoids obstruction by supports, improves the stability and yield of spraying, and enhances the consistency of spraying quality.
Smart Images

Figure CN223931706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil defense door production technology, and in particular to a spraying device for civil defense door frame and door leaf. Background Technology
[0002] Civil defense doors, short for "civil air defense engineering protective equipment," are special protective doors designed specifically for air defense and disaster prevention, installed at the entrances and exits of civil air defense projects (such as underground shelters, subways, underground parking garages, etc.). Their main function is to protect personnel and supplies from threats such as blast waves, debris, and toxic gases during war or disasters.
[0003] The painting process of air-raid shelter doors is a crucial step in their manufacturing and maintenance, directly affecting the door's corrosion resistance, rust prevention, weather resistance, and appearance quality. Currently, the door panels and frames are fixed during painting, requiring touch-up painting of areas obscured by the supports afterward. This affects overall quality and is inefficient. Existing painting methods involve manual application, requiring three coats of primer, intermediate coat, and topcoat, resulting in a massive workload. Furthermore, the angle and speed of manual spraying are difficult to control, easily leading to defects such as runs and bubbles. Utility Model Content
[0004] Therefore, it is necessary to provide a spraying device for the door frame and door leaf of a civil defense door to address the above-mentioned technical problems;
[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a base, a door frame body, and an electric slide rail; the base is provided with an alternating support mechanism; a translation mechanism is installed on the electric slide rail; and a spraying mechanism is installed at the lower end of the translation mechanism.
[0006] The alternating support mechanism includes a hydraulic rod and a support part. The support part supports the door frame body. The support part is provided in two sets. The hydraulic rod drives the different sets of support parts to move up and down alternately.
[0007] The translation mechanism drives the spraying mechanism to move horizontally, and the movement directions of the translation mechanism and the electric slide rail are perpendicular to each other.
[0008] The spraying mechanism includes a drive unit and a spraying unit. The spraying unit is provided in two sets, and the drive unit drives the different sets of spraying units to be in a vertical or horizontal state.
[0009] Furthermore, the support includes a sliding groove installed at the lower end of the base, with a sliding plate one installed at one end of the sliding groove and a sliding plate two installed at the other end of the sliding groove. The sliding plate one and the sliding plate two are fixedly connected, and the telescopic end of the hydraulic rod one is fixedly connected to the sliding plate one. The upper surface of the sliding plate one is provided with a plane one, a ramp one, a plane two, a ramp two, and a plane three in sequence from left to right. The upper surface of the sliding plate two is provided with a platform one, an incline one, a platform two, an incline two, and a platform three in sequence from left to right. The upper surface of the base has a rectangular hole, and a limit frame is installed on the rectangular hole. A support column is installed in the limit frame. There are two pairs of support columns, with one pair of support columns near the outer side and one pair of support columns near the inner side. A pulley is installed at the lower end of the support column.
[0010] Furthermore, the translation mechanism includes an L-shaped beam installed on the upper end of the electric slide rail, a crossbeam installed on one side of the upper end of the L-shaped beam, a slide rail opened on the lower surface of the crossbeam, a hydraulic rod II installed at one end of the slide rail, a sliding block installed at the telescopic end of the hydraulic rod II, and the sliding block is slidably connected to the slide rail; a C-shaped plate is installed at the lower end of the sliding block.
[0011] The spraying unit includes two gears installed on the lower end of the C-shaped plate. The gears are connected to the C-shaped plate and a driven wheel is installed on one side of the gear. A drive motor is installed on the lower end of the C-shaped plate, and a drive wheel that meshes with the driven wheel is installed on the rotating end of the drive motor. An L-shaped plate is installed on the driven wheel, and a spray head is installed on the L-shaped plate.
[0012] Furthermore, the L-shaped plate has a circular hole, the nozzle is hinged to one side of the circular hole, and a threaded hole is opened on the other side of the circular hole. A threaded shaft is installed in the threaded hole, and the threaded shaft presses against the nozzle.
[0013] Furthermore, a counterweight is installed at the upper end of the translation mechanism.
[0014] Furthermore, a rubber block is installed at one end of the threaded shaft near the nozzle.
[0015] Compared with the existing technology, this technical solution has the following advantages: the door frame can be supported at different positions by the action of the alternating support mechanism, and the door frame can be sprayed in all directions while avoiding the support from obstructing the door frame, eliminating the need for touch-up painting, and resulting in a stronger overall appearance consistency.
[0016] By combining the translation mechanism and the electric slide rail, the spraying unit can move freely within the plane to achieve the spraying operation; by changing the different states of the two sets of spraying units, the door leaf or door frame can be sprayed efficiently, improving the stability of the spraying and increasing the yield. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a spraying device for a civil defense door frame and door leaf according to the present invention;
[0018] Figure 2 This is a schematic diagram of the spraying section of this utility model;
[0019] Figure 3 This is a schematic diagram of the support part of this utility model;
[0020] Figure 4 This is a partial schematic diagram of the spraying part of this utility model;
[0021] Figure 5 This is a cross-sectional schematic diagram of the slide groove of this utility model;
[0022] Figure 6 This is a partial schematic diagram of the support part of this utility model;
[0023] In the diagram: 1. Base; 2. Door frame body; 3. Electric slide rail; 4. Hydraulic rod one; 5. Support part; 6. Drive part; 7. Spraying part; 8. Slide groove; 9. Sliding plate one; 10. Sliding plate two; 11. Plane one; 12. Ramp one; 13. Plane two; 14. Ramp two; 15. Plane three; 16. Platform one; 17. Incline one; 18. Platform two; 19. Incline two; 20. Platform three; 21. 1. Rectangular hole; 22. Limiting frame; 23. Support column; 24. Pulley; 25. L-shaped beam; 26. Crossbeam; 27. Slide rail; 28. Hydraulic rod II; 29. Sliding block; 30. C-shaped plate; 31. Gear; 32. Driven wheel; 33. Drive motor; 34. Driving wheel; 35. L-shaped plate; 36. Nozzle; 37. Round hole; 38. Threaded hole; 39. Threaded shaft; 40. Counterweight; 41. Rubber block. Detailed Implementation
[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0025] This application provides a spraying device for the door frame and door leaf of a civil defense door. Please refer to the following embodiments. Figures 1-6 The system includes a base 1, a door frame body 2, and an electric slide rail 3. The base 1 is equipped with an alternating support mechanism, the electric slide rail 3 is equipped with a translation mechanism, and the lower end of the translation mechanism is equipped with a spraying mechanism.
[0026] The alternating support mechanism includes a hydraulic rod 4 and a support part 5. The support part 5 supports the door frame body 2. There are two sets of support parts 5. The hydraulic rod 4 drives the different sets of support parts 5 to move up and down alternately.
[0027] The translation mechanism drives the spraying mechanism to move horizontally, and the movement direction of the translation mechanism is perpendicular to that of the electric slide rail 3.
[0028] The spraying mechanism includes a drive unit 6 and a spraying unit 7. The spraying unit 7 is provided in two sets. The drive unit 6 drives different sets of spraying units 7 to be in a vertical or horizontal state.
[0029] In practical applications, the spraying unit 7 is fixedly connected to an external paint delivery pipe. External equipment delivers paint to the spraying unit 7 at a certain pressure. Through the action of the electric slide rail 3 and the translation mechanism, the drive unit 6 and the spraying unit 7 can move in a plane. When the spraying unit 7 is in a horizontal position, it can spray the door leaf. When the spraying unit 7 is in a vertical position, it can spray the door frame. When both spraying units 7 are in a horizontal position, the electric slide rail 3 and the translation mechanism can be controlled to move to the designated spraying position, avoiding interference between the spraying unit 7 and the door frame body 2. Then, the spraying unit 7 is controlled to rotate to a vertical position for spraying. Through the movement of the electric slide rail 3 and the translation mechanism, the spraying unit 7 moves around the door frame body 2 to achieve the purpose of spraying. After the current door frame body 2 is sprayed, the spraying unit 7 is controlled to be in a horizontal position, and then the electric slide rail 3 is activated to move the spraying unit 7 to the position of the next door frame body 2.
[0030] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 The support part 5 includes a slide groove 8 installed at the lower end of the base 1. A sliding plate 9 is installed at one end of the slide groove 8, and a sliding plate 10 is installed at the other end of the slide groove 8. The sliding plate 9 and the sliding plate 10 are fixedly connected. The telescopic end of the hydraulic rod 4 is fixedly connected to the sliding plate 9. The upper surface of the sliding plate 9 is provided with a plane 11, a ramp 12, a second plane 13, a second ramp 14, and a third plane 15 from left to right. The upper surface of the sliding plate 10 is provided with a platform 16, an incline 17, a second platform 18, an incline 19, and a third platform 20 from left to right. A rectangular hole 21 is opened on the upper surface of the base 1. A limit frame 22 is installed on the rectangular hole 21. A support column 23 is installed in the limit frame 22. There are two pairs of support columns 23. The support columns 23 near the outer side are one pair, and the support columns 23 near the inner side are one pair. A pulley 24 is installed at the lower end of the support column 23.
[0031] In practical applications, the sliding groove 8 keeps the sliding plates 9 and 10 in a stable sliding state. When the hydraulic rod 4 retracts, it moves the sliding plates 9 and 10 to the left simultaneously. The ramp 14 and the incline 17 first drive the corresponding pulleys 24 to move upward. At this time, the support columns 23 at different positions are at their uppermost positions. Then, as the sliding plates 9 and 10 continue to slide, the pulleys 24 on both sides pass the ramp 12 and the incline 19, at which point the support columns 23 on both sides are at their lowermost positions. Figures 1 to 3 As shown; the extension of hydraulic rod 4 can drive sliding plate 9 and sliding plate 10 to slide to the right simultaneously, which can realize the operation of the support columns 23 on both sides rising first and then the inner support column 23 falling. Through this operation, when the spraying part 7 moves to the position where the support column 23 contacts the door frame body 2, the support column 23 is controlled to fall first to avoid the support column 23 blocking the spraying surface of the door frame body 2 and to avoid incomplete spraying. The limit frame 22 enables the support column 23 to slide stably. Through the alternating rise and fall of the two sets of support parts 5, the door frame body 2 is supported while the spraying quality is improved.
[0032] Reference Figure 1 and Figure 2 The translation mechanism includes an L-shaped beam 25 installed on the upper end of the electric slide rail 3. A crossbeam 26 is installed on one side of the upper end of the L-shaped beam 25. A slide rail 27 is opened on the lower surface of the crossbeam 26. A hydraulic rod 28 is installed at one end of the slide rail 27. A sliding block 29 is installed at the telescopic end of the hydraulic rod 28. The sliding block 29 is slidably connected to the slide rail 27. A U-shaped plate 30 is installed at the lower end of the sliding block 29.
[0033] In practical applications, the operation of the electric slide rail 3 drives the L-shaped beam 25 to move in the arrangement direction of the door frame body 2, realizing the spraying operation of different door frame bodies 2. When the L-shaped beam 25 moves to the corresponding door frame body 2, the hydraulic rod 28 is extended to drive the sliding block 29, the C-shaped plate 30 and the spraying part 7 to move. After spraying one side of the door frame body 2, the spraying part 8 is rotated 90 degrees. At this time, the electric slide rail 3 moves to spray the other side of the door frame body 2. After spraying, the hydraulic rod 28 is shortened to spray the third side. After spraying, the electric slide rail 3 is moved in the opposite direction to realize the spraying operation of the door frame body 2.
[0034] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6The spraying unit includes a gear 31 mounted on the lower end of the C-shaped plate 30. There are two gears 31 that mesh with each other. The gears 31 are connected to the C-shaped plate 30. A driven wheel 32 is mounted on one side of the gear 31. A drive motor 33 is mounted on the lower end of the C-shaped plate 30. A drive wheel 34 that meshes with the driven wheel 32 is mounted on the rotating end of the drive motor 33. An L-shaped plate 35 is mounted on the driven wheel 32. A spray nozzle 36 is mounted on the L-shaped plate 35.
[0035] In practical applications, when it is necessary to spray paint the door frame body 2, the drive motor 33 is controlled to rotate, the drive motor 33 drives the drive wheel 34 to rotate, the drive wheel 34 drives the driven wheel 32 and the gear 31 to rotate, so that the two sets of spraying parts 7 are in a vertical state. When it is necessary to spray paint the door leaf, the drive motor 33 is controlled to rotate, so that the spraying part 7 rotates 90 degrees and is in the same plane, thus achieving the purpose of spraying the door leaf.
[0036] Reference Figure 1 , Figure 2 and Figure 4 The L-shaped plate 35 has a round hole 37. The nozzle 36 is hinged to one side of the round hole 37. The other side of the round hole 37 has a threaded hole 38. A threaded shaft 39 is installed in the threaded hole 38. The threaded shaft 39 presses against the nozzle 36. A counterweight 40 is installed at the upper end of the translation mechanism.
[0037] In practical applications, the nozzle 36 is located inside the circular hole 37. The nozzle 36 is hinged to one side of the circular hole 37 to keep it in a stable state. By tightening the threaded shaft 39, one end of the threaded shaft 39 is pressed against the nozzle 36 to fix the nozzle 36. The crossbeam 26 is kept in a balanced state by the action of the counterweight 40.
[0038] Reference Figure 6 A rubber block 41 is installed at one end of the threaded shaft 39 near the nozzle 36.
[0039] In practical applications, the rubber block 41 is used to prevent one end of the threaded shaft 39 from damaging the nozzle 36.
[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
[0042] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art.
Claims
1. A spraying device for a door frame and door leaf of a civil defense door, comprising a base (1), a door frame body (2), and an electric slide rail (3), characterized in that, The base (1) is provided with an alternating support mechanism, the electric slide rail (3) is equipped with a translation mechanism, and the lower end of the translation mechanism is equipped with a spraying mechanism; The alternating support mechanism includes a hydraulic rod (4) and a support part (5). The support part (5) supports the door frame body (2). There are two sets of support parts (5). The hydraulic rod (4) drives the different sets of support parts (5) to move up and down alternately. The translation mechanism drives the spraying mechanism to move horizontally, and the movement direction of the translation mechanism is perpendicular to that of the electric slide rail (3). The spraying mechanism includes a drive unit (6) and a spraying unit (7). The spraying unit (7) is provided in two groups. The drive unit (6) drives the different groups of spraying units (7) to be in a vertical or horizontal state.
2. The spraying device for the door frame and door leaf of a civil defense door according to claim 1, characterized in that, The support (5) includes a slide groove (8) installed at the lower end of the base (1). A sliding plate (9) is installed at one end of the slide groove (8); a sliding plate (10) is installed at the other end of the slide groove (8). The sliding plate (9) and the sliding plate (10) are fixedly connected. The telescopic end of the hydraulic rod (4) is fixedly connected to the sliding plate (9). The upper surface of the sliding plate (9) is provided with a plane (11), a ramp (12), a plane (13), a ramp (14), and a plane (15) from left to right. The sliding plate (15) (10) The upper surface is provided with platform one (16), tilt one (17), platform two (18), tilt two (19), and platform three (20) from left to right; the upper surface of the base (1) has a rectangular hole (21), a limit frame (22) is installed on the rectangular hole (21), and a support column (23) is installed in the limit frame (22). There are two pairs of support columns (23), one pair of support columns (23) near the outer side and one pair of support columns (23) near the inner side. A pulley (24) is installed at the lower end of the support column (23).
3. The spraying device for the door frame and door leaf of a civil defense door according to claim 2, characterized in that, The translation mechanism includes an L-shaped beam (25) installed on the upper end of the electric slide rail (3), a crossbeam (26) installed on one side of the upper end of the L-shaped beam (25), a slide rail (27) opened on the lower surface of the crossbeam (26), a hydraulic rod (28) installed at one end of the slide rail (27), a sliding block (29) installed at the telescopic end of the hydraulic rod (28), and the sliding block (29) is slidably connected to the slide rail (27); a U-shaped plate (30) is installed at the lower end of the sliding block (29). The spraying unit includes a gear (31) installed on the lower end of the C-shaped plate (30). There are two gears (31) that mesh with each other. The gears (31) are connected to the C-shaped plate (30). A driven wheel (32) is installed on one side of the gear (31). A drive motor (33) is installed on the lower end of the C-shaped plate (30). A drive wheel (34) that meshes with the driven wheel (32) is installed on the rotating end of the drive motor (33). An L-shaped plate (35) is installed on the driven wheel (32). A spray nozzle (36) is installed on the L-shaped plate (35).
4. The spraying device for the door frame and door leaf of a civil defense door according to claim 3, characterized in that, The L-shaped plate (35) has a round hole (37), the nozzle (36) is hinged to one side of the round hole (37), and a threaded hole (38) is opened on the other side of the round hole (37). A threaded shaft (39) is installed in the threaded hole (38), and the threaded shaft (39) presses against the nozzle (36).
5. A spraying device for the door frame and door leaf of a civil defense door according to any one of claims 1-4, characterized in that, The translation mechanism is equipped with a counterweight (40) at its upper end.
6. A spraying device for the door frame and door leaf of a civil defense door according to claim 4, characterized in that, A rubber block (41) is installed at one end of the threaded shaft (39) near the nozzle (36).