A sealing structure and a cleansing lamp having the same

Abstract

The present invention discloses a sealing structure and a clean lamp having the same, specifically relating to the technical field of lighting equipment, including a lamp body, the lamp body including a lighting component with an opening at the front end and a sealing shell with the opening facing downward, a sealing portion and a connecting portion, the sealing portion including a lower pressure cylinder fixed at the front end opening of the lighting component, a sealing groove provided on the lower pressure cylinder, a sealing strip provided in the sealing groove, a connecting portion including a plurality of clips, and wedge-shaped blocks that can be clipped into the clips are provided at the upper and lower parts of the sealing shell. The present invention can continuously apply pressure in four directions to the sealing strip, thereby ensuring the sealing effect of the sealing strip, solving the problem of deformation or damage of the sealing strip due to excessive extrusion during double-sided extrusion, the sealing strip is not easily damaged by water molecules and high temperature, thereby extending the service life of the sealing strip, and is very simple to disassemble, reducing the complexity and cost of maintenance, and can effectively avoid damage to the lamp or the sealing structure.

Description

Technical Field

[0001] The present invention relates to the field of lighting technology, and more particularly to a sealing structure and a clean lamp having the same. Background Art

[0002] Cleanroom lights are lighting fixtures specifically designed for environments requiring high cleanliness. They primarily prevent dust from entering the indoor space where they are installed. They are commonly used in hospital operating rooms, laboratories, cleanrooms, food processing plants, and other locations. Flat-panel cleanroom lights are the most common type of cleanroom light, featuring a simple structure, excellent lighting, and ease of cleaning. They are typically mounted on ceilings or walls to provide uniform lighting throughout the room.

[0003] In the prior art, flat cleanroom lamps are generally divided into two parts, an upper and a lower shell, with a sealing ring arranged horizontally between the two parts. The sealing ring can fit tightly between the two parts of the shell to form an effective sealing barrier, which plays a role in waterproofing and dustproofing. The upper and lower shells are fixed together with multiple screws. When the horizontally arranged sealing ring encounters high temperature and high water vapor, water molecules will penetrate into the sealing structure and destroy the original sealing effect. Over time, the accumulation of water molecules in the sealing material will aggravate the damage to the sealing structure, causing the sealing performance of the sealing structure to gradually decline or even completely fail. After the water molecules enter the interior of the lamp, they will also accelerate the aging process of the sealing material and electronic components, shortening the service life of the lamp. The sealing structure of some cleanroom lamps is more difficult to disassemble and requires professional tools or techniques. This increases the complexity and cost of maintenance and may also cause damage to the lamp or the sealing structure during maintenance.

[0004] Therefore, the present invention proposes a sealing structure and a cleaning lamp having the same to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a sealing structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a sealing structure comprising: a lamp body, the lamp body comprising a lighting assembly with an opening at the front end and a sealing shell with the opening facing downward;

[0007] The sealing part includes a lower pressure cylinder fixed at the front end opening of the lighting component, a sealing groove is provided at the rear end of the lower pressure cylinder, a sealing strip is provided in the sealing groove, the outside of the sealing strip extends out from the sealing groove, the side surface of the sealing shell is parallel to the lower pressure cylinder, and the inner surface of the sealing shell can fit with the outer surface of the sealing strip, the four corners of the lower pressure cylinder are provided with a first giving groove, each of the first giving grooves on the lower pressure cylinder is provided with a first pressing portion, the four sides of the lower pressure cylinder are provided with a second giving groove, each of the second giving grooves of the lower pressure cylinder is provided with a second pressing portion, and the first pressing portion and the second pressing portion can drive the sealing strip to move downward;

[0008] The connecting part includes a plurality of clips fixedly connected to the lighting assembly, and the plurality of clips are evenly distributed on the left and right parts of the lighting assembly. The upper and lower parts of the sealed shell are vertically slidably connected with left and right pull plates, and the left and right ends of the pull plates are provided with up and down wedge blocks, and the wedge-shaped ends of the wedge blocks can be stuck in the clips on the corresponding sides. The middle part of the sealed shell is rotatably connected with a front-to-back axial rotating shaft, and the rear end of the rotating shaft is provided with a rocker arm with a lower left and a higher right side. The left and right ends of the rocker arm are hinged with up and down connecting rods, and the free end of the connecting rod is hingedly connected to the middle part of the pull plate on the corresponding side.

[0009] The lighting assembly comprises a lighting housing with an opening facing forward, the side wall of the pressing cylinder is tapered with a smaller front portion and a larger rear portion, and the opening at the front end of the lighting housing is fixedly connected to the rear end of the pressing cylinder.

[0010] Preferably, a plurality of fastening bolts are provided at the edge of the lighting housing and are evenly distributed in the front-to-back axial direction and in the up-down direction.

[0011] The first pressing part includes a first guide cylinder fixed at the four corners of the lower pressing cylinder, the cross-section of the first guide cylinder is L-shaped, a first pressure plate is slidably connected in the first guide cylinder, and a first pressure block is provided on the first pressure plate and is located in the first clearance groove. The first pressure block can extend out of the first clearance groove.

[0012] The second pressing portion includes a second guide cylinder fixed on the side of the pressing cylinder, a second pressing plate is slidably connected in the second guide cylinder, and a second pressing block is provided on the second pressing plate and is located in the second giving way groove. The second pressing block can extend out of the second giving way groove.

[0013] Preferably, the rear end of the sealing shell is vertically slidably connected to a sealing plate, and the sealing plate is fixedly connected to the upper pull plate. A first fan-shaped groove with a larger upper portion and a smaller lower portion is provided on the sealing plate, and a second fan-shaped groove which is opposite to the first fan-shaped groove front and back and is smaller at the upper portion and larger at the lower portion is provided on the sealing shell. A sealing joint is provided on the upper part of the sealing shell, and the cross-section of the sealing joint is I-shaped. The small end of the first fan-shaped groove and the small end of the second fan-shaped groove can form a circular hole, and the sealing joint can be stuck in the circular hole.

[0014] Preferably, a handwheel is coaxially provided at the front end of the rotating shaft, a fixing cylinder coaxial with the rotating shaft is provided at the rear end of the sealing housing, a torsion spring is provided at the rear end of the sealing housing, and two free ends of the torsion spring are respectively connected to the rotating shaft and the fixing cylinder.

[0015] Preferably, a first spring is provided on the left and right parts between each of the first guide cylinders and the first pressure plate, and the first spring always drives the first pressure plate to extend upward out of the first guide cylinder. A second spring is provided on the left and right parts between each of the second guide cylinders and the second pressure plate, and the second spring always drives the second pressure plate to extend upward out of the second guide cylinder.

[0016] Preferably, the rear end of the sealing shell is provided with two guide rails in the vertical direction and opposite to each other left and right. The sealing plate is located between the left and right guide rails and is vertically slidably connected to the two guide rails. The wedge block and the pull plate are fixedly connected by connecting bolts.

[0017] The second purpose of the present invention is to provide a clean lamp, including a lighting lamp bead; the sealing structure proposed in the above scheme, the lighting lamp bead is arranged in the lighting shell of the sealing structure; the electric wire, the electric wire is arranged at the upper end of the lighting lamp bead, and the free end of the electric wire passes through the center of the sealing joint of the sealing structure, and the sealing joint is used to reduce the gap between the electric wire and the sealing shell; the transparent lampshade, the transparent lampshade is arranged at the front end of the lighting shell, and the light beam generated by the lighting lamp bead can pass through the transparent lampshade.

[0018] The technical effects and advantages of the present invention are as follows:

[0019] 1. The present invention provides multiple first pressing parts and second pressing parts, which can drive the sealing strip to move downward, so that the sealing strip is sleeved in the sealing groove at the lower end of the pressing cylinder from tight to loose, which is convenient for the staff to install the sealing strip. Then the first pressing part and the second pressing part can continuously apply downward pressure to the sealing strip, and the sealing strip is sleeved on the upward inclined surface. At this time, the inclined surface of the edge part of the sealing shell contacts the outer surface of the sealing strip, and the gap between the sealing shell and the lighting shell is filled with the sealing strip. The sealing strip can prevent water vapor and dust from entering the lighting assembly, and the planes of the sealing strip in four directions are all in an squeezed state, which solves the problem of deformation or damage of the sealing strip due to excessive squeezing during double-sided extrusion, and the sealing strip fits in the inclined space between the pressing cylinder and the sealing shell, and the sealing shell protects the sealing strip, so water molecules are not easily accumulated on the sealing strip, so that the sealing strip is not easily damaged by water molecules and high temperature, thereby extending the service life of the sealing strip and reducing the cost of use.

[0020] 2. The present invention provides a first fan-shaped groove and a second fan-shaped groove, wherein the first fan-shaped groove is located on the sealing plate. The staff can adjust the relative positions of the first fan-shaped groove and the second fan-shaped groove by moving the sealing plate. When the smaller ends of the first fan-shaped groove and the second fan-shaped groove are opposite to each other front and back, a smaller circular hole is formed, which can clamp the sealing joint, thereby fixing the sealing joint and the wire on the sealing shell to achieve a better sealing effect. When the larger ends of the first fan-shaped groove and the second fan-shaped groove are opposite to each other front and back, a larger circular hole is formed, and the sealing joint can pass through the center of this larger circular hole, which makes it convenient for the staff to remove the sealing joint from the sealing plate and the sealing shell for subsequent inspection and maintenance.

[0021] 3. The present invention provides a pull plate and a connecting rod, so that the staff can drive the two pull plates to move and release the limit of the sealing shell by simply turning the handwheel on the rotating shaft. At the same time, the pull plate can drive the sealing plate to move along the end face of the sealing shell, so that the sealing joint is separated from the sealing plate and the sealing shell. After the staff removes the sealing shell from above the lighting component, the opening above the lighting component is exposed, so that subsequent maintenance operations can be carried out. Disassembly is very simple and can be completed smoothly without the aid of professional tools or techniques. This reduces the complexity and cost of maintenance, and can also effectively avoid damage to the lamp or sealing structure during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the lighting housing and the transparent lampshade of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the lighting assembly and sealing part of the present invention.

[0025] Figure 4 Schematic diagram of the structure of the first pressing part of the present invention.

[0026] Figure 5 Schematic diagram of the structure of the second pressing part of the present invention.

[0027] Figure 6 Schematic diagram of the internal structure of the sealed housing of the present invention.

[0028] Figure 7 Schematic diagram of the structure of the connecting portion of the present invention.

[0029] Figure 8 It is a schematic left view of the lamp body of the present invention.

[0030] Figure 9 This is an exploded view of the lamp body of the present invention.

[0031] Figure 10 For the present invention Figure 8 Enlarged schematic diagram of part A.

[0032] The accompanying drawings are marked as follows: 1. lamp body; 2. lighting assembly; 3. sealing shell; 4. sealing part; 5. pressing cylinder; 6. sealing groove; 7. sealing strip; 8. first clearance groove; 9. first pressing part; 10. second clearance groove; 11. second pressing part; 12. connecting part; 13. buckle; 14. pull plate; 15. wedge block; 16. rotating shaft; 17. swing rod; 18. connecting rod; 19. lighting shell; 20. lighting lamp beads; 21. electric Wire; 22. Transparent lampshade; 23. Fastening bolt; 24. First guide cylinder; 25. First pressure plate; 26. First pressure block; 27. Second guide cylinder; 28. Second pressure plate; 29. ​​Second pressure block; 30. Sealing plate; 31. First fan-shaped groove; 32. Second fan-shaped groove; 33. Sealing joint; 34. Handwheel; 35. Fixing cylinder; 36. Torsion spring; 37. First spring; 38. Second spring; 39. Guide rail; 40. Connecting bolt. DETAILED DESCRIPTION

[0033] The following will provide a clear and complete description of 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1

[0035] During the use of cleanroom lamps, it was discovered that horizontally positioned sealing rings can deform laterally when exposed to high temperatures and high levels of moisture. This can cause water molecules to penetrate the sealing structure, disrupting the original sealing effect. Over time, the accumulation of water molecules in the sealing material can exacerbate damage to the sealing structure, causing the sealing performance to gradually deteriorate or even completely fail. Furthermore, it was discovered that the sealing structure of some cleanroom lamps is difficult to disassemble, requiring specialized tools or techniques. This increases the complexity and cost of maintenance and may also damage the lamp or the sealing structure during maintenance. This embodiment is specifically designed to address the aforementioned issues.

[0036] See also Figure 1 As shown, the present invention proposes a sealing structure, including a lamp body 1 , wherein the lamp body 1 includes a lighting assembly 2 with an opening at the front end, a sealing shell 3 with the opening facing downward, a sealing portion 4 and a connecting portion 12 .

[0037] It should be noted that the sealing structure in this embodiment is mainly used in clean lamps.

[0038] Please refer to Figure 1 、 Figure 7 and Figure 9 As shown, the sealing portion 4 includes a lower pressure cylinder 5 fixed at the front end opening of the lighting assembly 2, a sealing groove 6 is provided at the rear end of the lower pressure cylinder 5, a sealing strip 7 is provided in the sealing groove 6, and the outside of the sealing strip 7 extends out from the sealing groove 6, the side of the sealing shell 3 is parallel to the lower pressure cylinder 5, and the inner surface of the sealing shell 3 can fit with the outer surface of the sealing strip 7, the four corners of the lower pressure cylinder 5 are provided with a first giving groove 8, each of the first giving groove 8 on the lower pressure cylinder 5 is provided with a first pressing portion 9, the four sides of the lower pressure cylinder 5 are provided with a second giving groove 10, each of the second giving groove 10 of the lower pressure cylinder 5 is provided with a second pressing portion 11, the first pressing portion 9 and the second pressing portion 11 can drive The dynamic sealing strip 7 moves downward; the connecting part 12 includes a plurality of clips 13 fixedly connected to the lighting assembly 2, and the plurality of clips 13 are evenly distributed on the left and right parts of the lighting assembly 2. The upper and lower parts of the sealing shell 3 are vertically slidably connected with left and right pull plates 14, and the left and right ends of the pull plate 14 are provided with up and down wedge blocks 15, and the wedge-shaped ends of the wedge blocks 15 can be stuck in the clips 13 on the corresponding side. The middle part of the sealing shell 3 is rotatably connected with the front and rear axial rotating shaft 16, and the rear end of the rotating shaft 16 is provided with a rocker rod 17 with the left lower and the right higher. The left and right ends of the rocker rod 17 are hinged with up and down connecting rods 18, and the free end of the connecting rod 18 is hingedly connected to the middle part of the pull plate 14 on the corresponding side.

[0039] Please refer to Figure 3 and Figure 9 As shown, the lighting assembly 2 includes a lighting housing 19 with an opening facing forward, and the side wall of the lower pressure cylinder 5 is tapered with a smaller front and a larger rear. The opening at the front end of the lighting housing 19 is fixedly connected to the rear end of the lower pressure cylinder 5.

[0040] Please refer to Figure 3 and Figure 4 As shown, the first pressing portion 9 includes a first guide cylinder 24 fixed at the four corners of the pressing cylinder 5, the cross section of the first guide cylinder 24 is L-shaped, and a first pressure plate 25 is slidably connected inside the first guide cylinder 24. The first pressure plate 25 is provided with a first pressure block 26 located in the first clearance groove 8, and the first pressure block 26 can extend out of the first clearance groove 8.

[0041] Please refer to Figure 3 and Figure 5 As shown, the second pressing portion 11 includes a second guide cylinder 27 fixed on the side of the pressing cylinder 5, a second pressing plate 28 is slidably connected in the second guide cylinder 27, and a second pressing block 29 is provided on the second pressing plate 28 and is located in the second clearance groove 10. The second pressing block 29 can extend out of the second clearance groove 10.

[0042] Please refer to Figure 4 and Figure 5As shown, a first spring 37 is provided on the left and right parts between each first guide cylinder 24 and the first pressure plate 25, and the first spring 37 always drives the first pressure plate 25 to extend upward from the first guide cylinder 24. A second spring 38 is provided on the left and right parts between each second guide cylinder 27 and the second pressure plate 28, and the second spring 38 always drives the second pressure plate 28 to extend upward from the second guide cylinder 27.

[0043] When in use, first set the lighting assembly 2 and the sealing shell 3 in the lamp body 1 to be in a separated initial state, set the sealing strip 7 and the sealing plate 30 to be in a separated initial state, and multiple first springs 37 and second springs 38 are at their original lengths. The first spring 37 drives the front end of the first pressure plate 25 to extend out of the first guide cylinder 24, and the first pressure block 26 on the first pressure plate 25 extends from the first clearance groove 8. The second spring 38 drives the front end of the second pressure plate 28 to extend out of the second guide cylinder 27, and the second pressure block 29 on the second pressure plate 28 extends from the second clearance groove 10.

[0044] When assembling the lamp body 1 in the lamp production process, it is necessary to first put the sealing strip 7 on the front end of the lower pressure cylinder 5. At this time, the sealing strip 7 is located below the multiple first pressure blocks 26 and the second pressure blocks 29, and the sealing shell 3 is buckled on the lower pressure cylinder 5. When the sealing shell 3 contacts the front ends of the first pressure plate 25 and the second pressure plate 28, the sealing shell 3 continues to be pressed backward. The sealing shell 3 drives the multiple first pressure plates 25 to slide backward along the first guide cylinder 24, and the first pressure plate 25 squeezes the first spring 37 between the first guide cylinder 24 backward. At the same time, the first pressure plate 25 drives the first pressure block 26 to move backward, and the first pressure block 26 gradually enters the first clearance groove 8. The sealing shell 3 drives the multiple second pressure plates 28 to slide backward along the second guide cylinder 27, and the second pressure plate 28 squeezes the second spring 38 between the second guide cylinder 27 backward. At the same time, the second pressure plate 28 drives the second pressure block 29 to move backward, and the second pressure block 29 gradually enters the second clearance groove 10.

[0045] When the plurality of first pressing blocks 26 and the second pressing blocks 29 come into contact with the front end of the sealing strip 7, the plurality of first pressing blocks 26 and the second pressing blocks 29 begin to drive the sealing strip 7 to move backward. Since the side surface of the lower pressing cylinder 5 is a tapered inclined surface and the cross section of the lower pressing cylinder 5 gradually increases backward, the sealing strip 7 will be expanded by the lower pressing cylinder 5 when it moves backward, and the sealing strip 7 gradually changes from a loose state to a tight state. When the sealing strip 7 enters the sealing groove 6 at the larger end of the lower pressing cylinder 5, the sealing strip 7 changes from a tight state to an initial soft state. The sealing strip 7 is sleeved in the sealing groove 6 at the rear end of the lower pressing cylinder 5. At this time, the inclined surface of the edge portion of the sealing shell 3 is in contact with the sealing strip 7. The outer surface of the sealing shell 3 and the lighting shell 19 are in contact, and the gap between the sealing strip 7 is filled with the sealing strip 7. The sealing strip 7 can prevent water vapor and dust from entering the lighting assembly 2, and the four sides of the sealing strip 7 are in an extruded state, which solves the problem of deformation or damage of the sealing strip 7 due to excessive extrusion during double-sided extrusion. Moreover, the sealing strip 7 fits in the inclined space between the lower pressure cylinder 5 and the sealing shell 3. Coupled with the protective effect of the sealing shell 3 on the sealing strip 7, water molecules are not easily accumulated on the sealing strip 7, making the sealing strip 7 not easily damaged by the combined action of water molecules and high temperature, thereby extending the service life of the sealing strip 7 and reducing the cost of use.

[0046] The wedge ends of the multiple wedge blocks 15 on the sealing shell 3 are in contact with the corresponding buckles 13. The connecting bolts 40 between the wedge blocks 15 and the pull plates 14 can be set to two, so as to avoid shaking when the wedge blocks 15 collide with the buckles 13. The buckles 13 squeeze the wedge blocks 15, and the multiple wedge blocks 15 drive the two pull plates 14 to move in opposite directions. The two pull plates 14 drive the two connecting rods 18 to move in opposite directions. The two connecting rods 18 drive the rocker 17 to swing clockwise. The rocker 17 drives the rotating shaft 16 to rotate clockwise, and the rotating shaft 16 begins to compress and fix. The torsion spring 36 between the cylinders 35, when the wedge block 15 moves into the buckle 13 on the corresponding side, the wedge-shaped end of the wedge block 15 loses the squeezing of the buckle 13, and the torsion spring 36 starts to drive the rotating shaft 16 to rotate counterclockwise, the rotating shaft 16 drives the rocker arm 17 to rotate counterclockwise, the rocker arm 17 drives the two connecting rods 18 to move in opposite directions, the two connecting rods 18 drive the two pull plates 14 to gradually separate, the two pull plates 14 drive the upper and lower wedge blocks 15 to gradually separate, and the wedge blocks 15 gradually snap into the buckle 13 on the corresponding side. At this time, the sealing shell 3 is fixed on the lighting shell 19.

[0047] When installing the lamp body 1 on the indoor ceiling, the staff first buckles the lamp body 1 from the bottom to the installation port on the ceiling, and then uses a screwdriver to turn multiple fastening bolts 23 clockwise in sequence, and thread the fastening bolts 23 to the ceiling, thereby fixing the lamp body 1 on the ceiling. The lighting shell 19 can block the installation port, reduce the opening in the room, and make the room more sealed, thereby achieving a better cleansing effect. Then the wire 21 is connected to the circuit above the ceiling. At this time, the lighting component 2 can illuminate normally.

[0048] When the components inside the lighting housing 19 need to be repaired, the staff rotates the hand wheel 34 clockwise, the hand wheel 34 drives the rotating shaft 16 to rotate clockwise, the rotating shaft 16 drives the swing rod 17 to swing clockwise, the right end of the swing rod 17 drives the upper connecting rod 18 to move downward, the upper connecting rod 18 drives the upper pull plate 14 to move downward along the sealing housing 3, the upper pull plate 14 drives the two upper wedge blocks 15 to move downward, the two upper wedge blocks 15 are separated from the buckles 13 on the corresponding sides, and the left end of the swing rod 17 drives the lower connecting rod 18 moves upward, and the connecting rod 18 below drives the pull plate 14 below to move upward along the sealing shell 3. The pull plate 14 below drives the two wedge blocks 15 below to move upward, and the two wedge blocks 15 below are separated from the buckles 13 on the corresponding sides, and the sealing shell 3 is limited. After the staff removes the sealing shell 3, they can pass through the lower pressure cylinder 5 to inspect the components inside the lighting shell 19. The lighting shell 19 can be easily opened without professional tools or techniques, which is more convenient and quicker than the current maintenance method.

[0049] Example 2

[0050] In actual use, it is found that the wire 21 on the lighting lamp bead 20 needs to pass through the sealed shell 3, so a through hole must be opened on the sealed shell 3 for passing the wire 21. In order to reduce the gap between the wire 21 and the through hole, a sealing sleeve is currently provided on the wire 21 for sealing. When installing and disassembling the sealed shell 3, the wire 21 needs to be separated from the sealed shell 3, so the sealing sleeve must be pulled out or inserted from the through hole first, which is not very convenient and the sealing effect is difficult to achieve the expected effect. Further improvements are made on the basis of the above embodiments.

[0051] Please refer to Figure 6 、 Figure 7 and Figure 9As shown, the rear end of the sealing shell 3 is vertically slidably connected to a sealing plate 30, and the sealing plate 30 is fixedly connected to the upper pull plate 14. A first fan-shaped groove 31 with a larger upper part and a smaller lower part is provided on the sealing plate 30, and a second fan-shaped groove 32 with a front-to-back relationship with the first fan-shaped groove 31 and a smaller upper part and a larger lower part is provided on the sealing shell 3. A sealing joint 33 is provided on the upper part of the sealing shell 3, and the cross-section of the sealing joint 33 is I-shaped. The small end of the first fan-shaped groove 31 and the small end of the second fan-shaped groove 32 can form a circular hole, and the sealing joint 33 can be stuck in the circular hole.

[0052] Please refer to Figure 6 As shown, the rear end of the sealing shell 3 is provided with two guide rails 39 in the vertical direction and opposite to each other left and right. The sealing plate 30 is located between the left and right guide rails 39 and is vertically slidably connected to the two guide rails 39.

[0053] On the basis of the above embodiment, when in use, the sealing plate 30 is fitted with the rear end surface of the sealing housing 3, the first fan-shaped groove 31 on the sealing plate 30 and the second fan-shaped groove 32 on the sealing housing 3 are both large on one side and small on the other side, and the first fan-shaped groove 31 and the second fan-shaped groove 32 are oriented in opposite directions. When the smaller end of the first fan-shaped groove 31 and the smaller end of the second fan-shaped groove 32 are close to each other, the edge portions of the first fan-shaped groove 31 and the second fan-shaped groove 32 are stuck in the middle of the sealing joint 33. Since the cross section of the sealing joint 33 is a work The stepped end on the sealing joint 33 can clamp the sealing plate 30 and the sealing shell 3 in the middle. Since the sealing plate 30 is fixedly connected to the upper pull plate 14, the torsional force on the torsion spring 36 is transmitted to the pull plate 14 through the rocker arm 17 and the connecting rod 18, so that the upper pull plate 14 tends to move upward, and the sealing plate 30 also tends to move upward with the pull plate 14, thereby tightening the sealing joint 33 and reducing the gap between the sealing joint 33 and the first fan-shaped groove 31 and the second fan-shaped groove 32, thereby achieving a better sealing effect.

[0054] When the staff needs to inspect the components inside the lighting housing 19, they only need to turn the hand wheel 34 clockwise, and the hand wheel 34 drives the rotating shaft 16 to rotate clockwise. The rotating shaft 16 begins to compress the torsion spring 36 between the fixed cylinder 35, and at the same time, the rotating shaft 16 drives the rocker 17 to swing clockwise, and the rocker 17 drives the two connecting rods 18 to move in opposite directions. The two connecting rods 18 drive the two pull plates 14 to move in opposite directions. The two pull plates 14 drive the wedge blocks 15 on the upper and lower sides to move in opposite directions. The wedge blocks 15 move out of the buckles 13 on the corresponding sides, and at the same time, the upper pull plate 14 drives the sealing plate 3 0 slides downward along the two guide rails 39. The two guide rails 39 limit the sealing plate 30 to slide only in the up and down directions, making the sealing plate 30 more stable when sliding and ensuring the sealing between the sealing plate 30 and the sealing housing 3. The larger end of the first fan-shaped groove 31 moves downward with the sealing plate 30, and then forms a larger circular hole with the larger end of the second fan-shaped groove 32. The sealing joint 33 can pass through the larger circular hole, so that the sealing joint 33 is separated from the sealing housing 3, making it convenient for staff to remove the sealing housing 3 and thereby inspect and repair the components inside the lighting housing 19.

[0055] In summary, the gap between the sealing housing 3 and the lighting housing 19 is filled with the sealing strip 7 by the contact between the inclined surface of the edge portion of the sealing housing 3 and the outer surface of the sealing strip 7. The sealing strip 7 can prevent moisture and dust from entering the lighting assembly 2. The four sides of the sealing strip 7 are all in an extruded state, solving the problem of deformation or damage of the sealing strip 7 due to excessive extrusion during double-sided extrusion. The sealing housing 3 can also provide good protection for the sealing strip 7. Water molecules are not easily accumulated on the sealing strip 7, making the sealing strip 7 less likely to be damaged by water molecules and high temperature, thereby extending the service life of the sealing strip 7. To reduce the cost of use, the sealing plate 30 is fitted with the rear end face of the sealing shell 3. The first fan-shaped groove 31 on the sealing plate 30 and the second fan-shaped groove 32 on the sealing shell 3 are both large on one side and small on the other side. The edge portions of the first fan-shaped groove 31 and the second fan-shaped groove 32 are stuck in the middle of the sealing joint 33. The cross-section of the sealing joint 33 is I-shaped. The stepped end on the sealing joint 33 can clamp the sealing plate 30 and the sealing shell 3 in the middle, resulting in a good sealing effect. It is also convenient for the staff to separate the sealing joint 33 from the sealing shell 3, thereby inspecting the internal parts inside the lighting shell 19.

[0056] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A sealing structure comprising a lamp body (1), wherein the lamp body (1) comprises a lighting assembly (2) with an opening at the front end and a sealing shell (3) with the opening facing downward, characterized in that: Also includes: A sealing portion (4), the sealing portion (4) comprising a pressure-down cylinder (5) fixed at the front end opening of the lighting assembly (2), a sealing groove (6) being provided at the rear end of the pressure-down cylinder (5), a sealing strip (7) being provided in the sealing groove (6), first clearance grooves (8) being provided at the four corners of the pressure-down cylinder (5), a first pressure-down portion (9) being provided at each of the first clearance grooves (8) on the pressure-down cylinder (5), second clearance grooves (10) being provided at the four sides of the pressure-down cylinder (5), and a second pressure-down portion (11) being provided at each of the second clearance grooves (10) of the pressure-down cylinder (5); A connecting portion (12), the connecting portion (12) includes a plurality of buckles (13) fixedly connected to the lighting assembly (2), the upper and lower parts of the sealed housing (3) are vertically slidably connected to left and right pull plates (14), the left and right ends of the pull plates (14) are provided with wedge blocks (15), the middle part of the sealed housing (3) is rotatably connected to a front-to-back axial rotating shaft (16), the rear end of the rotating shaft (16) is provided with a swing rod (17) with a lower left side and a higher right side, the left and right ends of the swing rod (17) are hinged to a connecting rod (18) in an up-down direction, and the free end of the connecting rod (18) is hingedly connected to the middle part of the pull plate (14) on the corresponding side; The lighting assembly (2) comprises a lighting housing (19) with an opening facing forward, the side wall of the lower pressure cylinder (5) is tapered with a smaller front portion and a larger rear portion, and the opening at the front end of the lighting housing (19) is fixedly connected to the rear end of the lower pressure cylinder (5).

2. The sealing structure according to claim 1, wherein: A plurality of fastening bolts (23) are provided at the edge of the lighting housing (19) and are evenly distributed in the front-to-back axial direction and in the up-down direction.

3. The sealing structure according to claim 2, characterized in that: The first pressing portion (9) includes a first guide cylinder (24) fixed at the four corners of the pressing cylinder (5), the cross section of the first guide cylinder (24) is L-shaped, a first pressing plate (25) is slidably connected inside the first guide cylinder (24), and a first pressing block (26) is provided on the first pressing plate (25) and is located in the first clearance groove (8), and the first pressing block (26) can extend out of the first clearance groove (8).

4. The sealing structure according to claim 3, characterized in that: The second pressing portion (11) includes a second guide cylinder (27) fixed on the side of the pressing cylinder (5), a second pressing plate (28) is slidably connected in the second guide cylinder (27), and a second pressing block (29) is provided on the second pressing plate (28) and is located in the second clearance groove (10). The second pressing block (29) can extend out of the second clearance groove (10).

5. The sealing structure according to claim 4, characterized in that: The rear end of the sealing shell (3) is vertically slidably connected to a sealing plate (30), and the sealing plate (30) is fixedly connected to the upper pull plate (14). A first fan-shaped groove (31) with a larger upper portion and a smaller lower portion is provided on the sealing plate (30), and a second fan-shaped groove (32) with a smaller upper portion and a larger lower portion is provided on the sealing shell (3), which is opposite to the first fan-shaped groove (31) in front and back. A sealing joint (33) is provided on the upper portion of the sealing shell (3), and the cross section of the sealing joint (33) is in an I-shaped shape. The small end of the first fan-shaped groove (31) and the small end of the second fan-shaped groove (32) can form a circular hole, and the sealing joint (33) can be stuck in the circular hole.

6. The sealing structure according to claim 5, characterized in that: A hand wheel (34) is coaxially provided at the front end of the rotating shaft (16), a fixed cylinder (35) coaxial with the rotating shaft (16) is provided at the rear end of the sealing housing (3), and a torsion spring (36) is provided at the rear end of the sealing housing (3), and two free ends of the torsion spring (36) are respectively connected to the rotating shaft (16) and the fixed cylinder (35).

7. The sealing structure according to claim 6, characterized in that: A first spring (37) is provided on the left and right parts between each of the first guide cylinder (24) and the first pressure plate (25), and the first spring (37) always drives the first pressure plate (25) to extend upward from the first guide cylinder (24). A second spring (38) is provided on the left and right parts between each of the second guide cylinder (27) and the second pressure plate (28), and the second spring (38) always drives the second pressure plate (28) to extend upward from the second guide cylinder (27).

8. The sealing structure according to claim 7, characterized in that: The rear end of the sealing shell (3) is provided with two guide rails (39) in the vertical direction and opposite to each other left and right. The sealing plate (30) is located between the left and right guide rails (39) and is vertically slidably connected to the two guide rails (39). The wedge block (15) and the pull plate (14) are fixedly connected by connecting bolts (40).

9. A cleansing lamp, comprising a sealing structure, wherein the sealing structure is the sealing structure according to any one of claims 1 to 8, characterized in that: It also includes a lighting lamp bead (20), wherein the lighting lamp bead (20) is arranged in a lighting housing (19) of a sealed structure; An electric wire (21), the electric wire (21) being arranged at the upper end of the lighting lamp bead (20), the free end of the electric wire (21) passing through the center of a sealing joint (33) of the sealing structure, the sealing joint (33) being used to reduce a gap between the electric wire (21) and the sealing housing (3); A transparent lampshade (22) is provided at the front end of the lighting housing (19), and the light beam generated by the lighting lamp bead (20) can pass through the transparent lampshade (22).

Images