Sealing structure and clean lamp with same

Abstract

The invention discloses a sealing structure and a cleaning lamp with the sealing structure, and particularly relates to the technical field of lighting equipment, the sealing structure comprises a lamp body, the lamp body comprises a lighting assembly with an opening formed in the front end, a sealing shell with a downward opening, a sealing part and a connecting part, and the sealing part comprises a downward pressing cylinder fixed to the opening in the front end of the lighting assembly; a sealing groove is formed in the lower pressing cylinder, a sealing strip is arranged in the sealing groove, the connecting part comprises a plurality of buckles, and wedge-shaped blocks capable of being clamped in the buckles are arranged on the upper portion and the lower portion of the sealing shell correspondingly. Pressure in four directions can be continuously applied to the sealing strip, so that the sealing effect of the sealing strip is guaranteed, the problem that the sealing strip is deformed or damaged due to excessive extrusion during double-face extrusion is solved, the sealing strip is not prone to being damaged by water molecules and high temperature, the service life of the sealing strip is prolonged, disassembly is very easy, and the sealing strip is convenient to use. The maintenance complexity and cost are reduced, and the damage to the lamp or the sealing structure can be effectively avoided.

Description

Technical Field

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

[0002] A clean lamp is a lighting fixture specifically designed for environments that require a high degree of cleanliness. It mainly prevents dust from entering the installed indoor space and is usually applied in places such as hospital operating rooms, laboratories, dust-free workshops, and food processing plants. The flat clean lamp is the most common type of clean lamp, which has the characteristics of simple structure, good lighting effect, and easy cleaning. It is usually installed on the ceiling or wall to provide uniform lighting for the interior.

[0003] In the prior art, the flat clean lamp generally consists of upper and lower housing parts. A sealing ring is horizontally arranged between the upper and lower housing parts. The sealing ring can closely fit between the upper and lower housing parts to form an effective sealing barrier, playing a role in waterproofing and dustproofing. The upper and lower housing parts are fixed together with multiple screws. When the horizontally arranged sealing ring encounters high temperature and a large amount of water vapor, water molecules will penetrate into the sealing structure, destroying the original sealing effect. Over time, the accumulation of water molecules in the sealing material will exacerbate the damage of the sealing structure, causing the sealing performance of the sealing structure to gradually decline or even completely fail. After the water molecules enter the lamp body, 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 clean lamps is relatively difficult to disassemble and requires professional tools or techniques, which 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 provides a sealing structure and a clean 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 background art.

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

[0007] Sealing part, the sealing part includes a downward pressing cylinder fixed at the front end opening of the lighting component. A sealing groove is provided at the rear end of the downward pressing cylinder, and a sealing strip is arranged in the sealing groove. The outer part of the sealing strip extends out of the sealing groove. The side surface of the sealing housing is parallel to the downward pressing cylinder, and the inner surface of the sealing housing can be attached to the outer surface of the sealing strip. First relief grooves are provided at the four corners of the downward pressing cylinder, and a first downward pressing part is arranged at each first relief groove of the downward pressing cylinder. Second relief grooves are provided at the four sides of the downward pressing cylinder, and a second downward pressing part is arranged at each second relief groove of the downward pressing cylinder. The first downward pressing part and the second downward pressing part can drive the sealing strip to move downward;

[0008] Connecting part, the connecting part includes a plurality of buckles fixedly connected to the lighting component. The plurality of buckles are evenly distributed on the left and right parts of the lighting component. Left and right direction pulling plates are vertically slidably connected to the upper and lower parts of the sealing housing. Wedge-shaped blocks in the up and down direction are arranged at both the left and right ends of the pulling plate. The wedge-shaped ends of the wedge-shaped blocks can be stuck in the corresponding side buckles. A rotating shaft in the front and rear axial direction is rotatably connected to the middle of the sealing housing. A swing rod with a lower left and a higher right is provided at the rear end of the rotating shaft. Link rods in the up and down direction are hinged to both the left and right ends of the swing rod. The free ends of the link rods are hingedly connected to the middle of the corresponding side pulling plate.

[0009] The lighting component includes a lighting housing with an opening facing forward. The side wall of the downward pressing cylinder is in the shape of a cone with a smaller front and a larger rear. The opening at the front end of the lighting housing is fixedly connected to the rear end of the downward pressing cylinder.

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

[0011] The first downward pressing part includes first guiding cylinders fixed at the four corners of the downward pressing cylinder. The cross-section of the first guiding cylinder is in the shape of an L. A first pressing plate is slidably connected in the first guiding cylinder. A first pressing block located in the first relief groove is provided on the first pressing plate, and the first pressing block can extend out of the first relief groove.

[0012] The second downward pressing part includes second guiding cylinders fixed on the side surface of the downward pressing cylinder. A second pressing plate is slidably connected in the second guiding cylinder. A second pressing block located in the second relief groove is provided on the second pressing plate, and the second pressing block can extend out of the second relief groove.

[0013] Preferably, a sealing plate is vertically slidably connected to the rear end of the sealing housing. The sealing plate is fixedly connected to the upper pulling plate. A first fan-shaped groove with a larger upper part and a smaller lower part is provided on the sealing plate. A second fan-shaped groove with a smaller upper part and a larger lower part and opposite to the first fan-shaped groove in the front and rear direction is provided on the sealing housing. A sealing joint is provided on the upper part of the sealing housing. The cross-section of the sealing joint is in the shape of a capital I. 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 fixed cylinder coaxial with the rotating shaft is provided at the rear end of the sealing housing, and a torsion spring is provided at the rear end of the sealing housing. Two free ends of the torsion spring are respectively connected to the rotating shaft and the fixed cylinder.

[0015] Preferably, first springs are provided at the left and right parts between each first guiding cylinder and the first pressing plate. The first springs always drive the first pressing plate to extend upward out of the first guiding cylinder. Second springs are provided at the left and right parts between each second guiding cylinder and the second pressing plate. The second springs always drive the second pressing plate to extend upward out of the second guiding cylinder.

[0016] Preferably, two guide rails in the vertical direction and opposite to each other in the left and right directions are provided at the rear end of the sealing housing. The sealing plate is located between the two guide rails on the left and right and is vertically slidably connected to the two guide rails. The wedge-shaped block and the pull plate are fixedly connected by a connecting bolt.

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

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

[0019] 1. By providing a plurality of first pressing parts and second pressing parts, the present invention can drive the sealing strip to move downward, so that the sealing strip is sleeved on 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 a downward pressure to the sealing strip. The sealing strip is sleeved on the upward-inclined inclined plane. At this time, the inclined plane at the edge part of the sealing housing contacts the outer surface of the sealing strip, and the gap between the sealing housing and the lighting housing is filled by the sealing strip. The sealing strip can prevent water vapor and dust from entering the lighting component, and the planes in four directions of the sealing strip are in a squeezed state, solving the problem that the sealing strip is deformed or damaged due to excessive extrusion during double-sided extrusion. Moreover, the sealing strip fits in the inclined space between the pressing cylinder and the sealing housing. Coupled with the protection of the sealing housing for the sealing strip, 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 prolonging the service life of the sealing strip and reducing the use cost.

[0020] 2. The present invention sets a first fan-shaped groove and a second fan-shaped groove, wherein the first fan-shaped groove is located on the sealing plate, and the staff can adjust the relative position 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 the 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 only needs to rotate the hand wheel on the rotating shaft to drive the two pull plates to move and release the limit of the sealing shell. At the same time, the pull plate can drive the sealing plate to move along the end face of the sealing shell to separate the sealing joint 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. The 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 schematic structural diagram of the lighting housing and the transparent lampshade of the present invention.

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

[0025] Figure 4 It is a schematic structural diagram of the first pressing part of the present invention.

[0026] Figure 5 It is a schematic structural diagram of the second pressing part of the present invention.

[0027] Figure 6 It is a schematic diagram of the internal structure of the sealed housing of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the connecting portion of the present invention.

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

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

[0031] Figure 10 For the present invention Figure 8 is an enlarged schematic view of part A in the present invention.

[0032] The reference numerals are: 1, lamp body; 2, lighting component; 3, sealed housing; 4, sealing part; 5, pressing cylinder; 6, sealing groove; 7, sealing strip; 8, first relief groove; 9, first pressing part; 10, second relief groove; 11, second pressing part; 12, connecting part; 13, buckle; 14, pulling plate; 15, wedge block; 16, rotating shaft; 17, swing rod; 18, connecting rod; 19, lighting housing; 20, lighting lamp beads; 21, electric wire; 22, transparent lamp cover; 23, fastening bolt; 24, first guiding cylinder; 25, first pressing plate; 26, first pressing block; 27, second guiding cylinder; 28, second pressing plate; 29, second pressing block; 30, sealing plate; 31, first sector groove; 32, second sector groove; 33, sealing joint; 34, hand wheel; 35, fixed cylinder; 36, torsion spring; 37, first spring; 38, second spring; 39, guide rail; 40, connecting bolt. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1

[0035] During the use of clean lamps, it is found that when the horizontally arranged sealing ring encounters high temperature and a large amount of water vapor, it will produce lateral deformation, resulting in water molecules penetrating into the sealing structure and destroying the original sealing effect. As time goes by, the accumulation of water molecules in the sealing material will exacerbate the damage of the sealing structure, causing the sealing performance to gradually decline or even completely fail. It is also found that the sealing structures of some clean lamps are relatively difficult to disassemble and require professional tools or techniques, which increases the complexity and cost of maintenance and may also cause damage to the lamps or sealing structures during maintenance. To solve the above problems, this embodiment is specifically invented.

[0036] Please refer to Figure 1 As shown, the present invention provides a sealing structure, including a lamp body 1, the lamp body 1 includes a lighting component 2 with an opening at the front end and a sealed housing 3 with an opening facing downwards, as well as a sealing part 4 and a connecting part 12.

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

[0038] Please refer toFigure 1 , Figure 7 and Figure 9 As shown in Figure 9 , the sealing part 4 includes a downward pressing cylinder 5 fixed at the front end opening of the lighting component 2. A sealing groove 6 is provided at the rear end of the downward pressing cylinder 5. A sealing strip 7 is provided in the sealing groove 6. The outer part of the sealing strip 7 extends out of the sealing groove 6. The side surface of the sealing housing 3 is parallel to the downward pressing cylinder 5, and the inner surface of the sealing housing 3 can be attached to the outer surface of the sealing strip 7. First relief grooves 8 are provided at the four corners of the downward pressing cylinder 5. A first downward pressing part 9 is provided at each first relief groove 8 on the downward pressing cylinder 5. Second relief grooves 10 are provided at the four sides of the downward pressing cylinder 5. A second downward pressing part 11 is provided at each second relief groove 10 of the downward pressing cylinder 5. The first downward pressing part 9 and the second downward pressing part 11 can drive the sealing strip 7 to move downward; the connecting part 12 includes a plurality of buckles 13 fixedly connected to the lighting component 2. The plurality of buckles 13 are evenly distributed on the left and right parts of the lighting component 2. Left and right direction pull plates 14 are vertically slidably connected to the upper and lower parts of the sealing housing 3. Wedge-shaped blocks 15 in the up and down direction are provided at both the left and right ends of the pull plate 14. The wedge-shaped ends of the wedge-shaped blocks 15 can be stuck in the corresponding buckles 13 on the corresponding side. A rotating shaft 16 in the front and rear axial direction is rotatably connected to the middle of the sealing housing 3. A swing rod 17 with a lower left and higher right is provided at the rear end of the rotating shaft 16. Link rods 18 in the up and down direction are hinged to both the left and right ends of the swing rod 17. The free ends of the link rods 18 are hinged to the middle parts of the corresponding pull plates 14.

[0039] Please refer to Figure 3 and Figure 9 As shown in Figure 9 , the lighting component 2 includes a lighting housing 19 with an opening facing forward. The side wall of the downward pressing cylinder 5 is in a conical shape 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 downward pressing cylinder 5.

[0040] Please refer to Figure 3 and Figure 4 As shown in Figure 4 , the first downward pressing part 9 includes first guiding cylinders 24 fixed at the four corners of the downward pressing cylinder 5. The cross-section of the first guiding cylinder 24 is in an L shape. A first pressing plate 25 is slidably connected in the first guiding cylinder 24. A first pressing block 26 located in the first relief groove 8 is provided on the first pressing plate 25. The first pressing block 26 can extend out of the first relief groove 8.

[0041] Please refer to Figure 3 and Figure 5 As shown in Figure 5 , the second downward pressing part 11 includes second guiding cylinders 27 fixed on the side surface of the downward pressing cylinder 5. A second pressing plate 28 is slidably connected in the second guiding cylinder 27. A second pressing block 29 located in the second relief groove 10 is provided on the second pressing plate 28. The second pressing block 29 can extend out of the second relief groove 10.

[0042] Please refer to Figure 4 and Figure 5As shown, first springs 37 are provided at both the left and right sides between each first guiding cylinder 24 and the first pressing plate 25. The first springs 37 always drive the first pressing plate 25 to protrude upward from the first guiding cylinder 24. Second springs 38 are provided at both the left and right sides between each second guiding cylinder 27 and the second pressing plate 28. The second springs 38 always drive the second pressing plate 28 to protrude upward from the second guiding cylinder 27.

[0043] During use, first, set the lighting assembly 2 in the lamp body 1 and the sealed housing 3 in an initial separated state, set the sealing strip 7 and the sealing plate 30 in an initial separated state, and multiple first springs 37 and second springs 38 are in their original lengths. The first spring 37 drives the front end of the first pressing plate 25 to protrude from the first guiding cylinder 24, and the first pressing block 26 on the first pressing plate 25 protrudes from the first relief groove 8. The second spring 38 drives the front end of the second pressing plate 28 to protrude from the second guiding cylinder 27, and the second pressing block 29 on the second pressing plate 28 protrudes from the second relief groove 10.

[0044] When assembling the lamp body 1 in the lamp production process, first, the sealing strip 7 needs to be sleeved on the front end of the lower pressing cylinder 5. At this time, the sealing strip 7 is located below multiple first pressing blocks 26 and second pressing blocks 29. Then, the sealed housing 3 is buckled on the lower pressing cylinder 5. When the sealed housing 3 contacts the front ends of the first pressing plate 25 and the second pressing plate 28, continue to press the sealed housing 3 backward. The sealed housing 3 drives multiple first pressing plates 25 to slide backward along the first guiding cylinder 24. The first pressing plate 25 squeezes the first spring 37 between it and the first guiding cylinder 24 backward. At the same time, the first pressing plate 25 drives the first pressing block 26 to move backward, and the first pressing block 26 gradually enters the first relief groove 8. The sealed housing 3 drives multiple second pressing plates 28 to slide backward along the second guiding cylinder 27. The second pressing plate 28 squeezes the second spring 38 between it and the second guiding cylinder 27 backward. At the same time, the second pressing plate 28 drives the second pressing block 29 to move backward, and the second pressing block 29 gradually enters the second relief groove 10.

[0045] When multiple first pressing blocks 26 and second pressing blocks 29 come into contact with the front end of the sealing strip 7, the multiple first pressing blocks 26 and second pressing blocks 29 start to drive the sealing strip 7 to move backward. Since the side surface of the lower pressing cylinder 5 is a conical inclined surface and the cross-section of the lower pressing cylinder 5 gradually increases backward, the sealing strip 7 will be expanded and supported by the lower pressing cylinder 5 when moving backward. The sealing strip 7 gradually changes from a soft 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 the 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 at the edge part of the sealing housing 3 contacts the outer surface of the sealing strip 7, and the gap between the sealing housing 3 and the lighting housing 19 is filled by the sealing strip 7. The sealing strip 7 can prevent water vapor and dust from entering the lighting component 2, and all four surfaces of the sealing strip 7 are in a squeezed state, solving the problem that the sealing strip 7 is deformed or damaged due to excessive extrusion during double-sided extrusion. Moreover, the sealing strip 7 fits in the inclined space between the lower pressing cylinder 5 and the sealing housing 3. Coupled with the protective effect of the sealing housing 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 prolonging the service life of the sealing strip 7 and reducing the use cost.

[0046] The wedge-shaped ends of the multiple wedge-shaped blocks 15 on the sealing housing 3 contact the corresponding buckles 13. The connecting bolts 40 between the wedge-shaped blocks 15 and the pull plates 14 can be set to two, so as to avoid shaking when the wedge-shaped blocks 15 collide with the buckles 13. The buckles 13 squeeze the wedge-shaped blocks 15, and the multiple wedge-shaped 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 swing rod 17 to swing in the clockwise direction. The swing rod 17 drives the rotating shaft 16 to rotate in the clockwise direction. The rotating shaft 16 starts to compress the torsion spring 36 between it and the fixed cylinder 35. When the wedge-shaped blocks 15 move into the corresponding buckles 13 on the side, the wedge-shaped ends of the wedge-shaped blocks 15 lose the extrusion of the buckles 13, and the torsion spring 36 starts to drive the rotating shaft 16 to rotate counterclockwise. The rotating shaft 16 drives the swing rod 17 to rotate counterclockwise. The swing rod 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-shaped blocks 15 to gradually separate. The wedge-shaped blocks 15 are gradually stuck into the corresponding buckles 13 on the side. At this time, the sealing housing 3 is fixed on the lighting housing 19.

[0047] When installing the lamp body 1 on the indoor ceiling, the staff first fasten the lamp body 1 onto the installation opening on the ceiling from bottom to top, and then use a screwdriver to sequentially rotate multiple fastening bolts 23 clockwise to thread the fastening bolts 23 onto the ceiling, thereby fixing the lamp body 1 on the ceiling. The lighting housing 19 can block the installation opening, reduce the openings in the room, make the airtight effect in the room better, and thus achieve a better cleaning effect. Then, the wire 21 is connected to the circuit above the ceiling, and at this time, the lighting assembly 2 can normally provide illumination.

[0048] When the components inside the lighting housing 19 need to be repaired, the staff rotates the handwheel 34 clockwise. The handwheel 34 drives the rotating shaft 16 to rotate clockwise, and 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, and 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, and the two upper wedge blocks 15 are separated from the corresponding side buckles 13. The left end of the swing rod 17 drives the lower connecting rod 18 to move upward, and the lower connecting rod 18 drives the lower pull plate 14 to move upward along the sealing housing 3. The lower pull plate 14 drives the two lower wedge blocks 15 to move upward, and the two lower wedge blocks 15 are separated from the corresponding side buckles 13. After the limiting contact of the sealing housing 3, the staff can remove the sealing housing 3 and then perform repairs on the components inside the lighting housing 19 through the pressing cylinder 5. It is possible to easily open the lighting housing 19 without professional tools or techniques, which is more convenient and faster than the current repair method.

[0049] Embodiment 2

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

[0051] Please refer to Figure 6 、 Figure 7 and Figure 9As shown in the figure, a sealing plate 30 is vertically slidably connected to the rear end of the sealing housing 3. 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 formed on the sealing plate 30. A second fan-shaped groove 32 with a smaller upper part and a larger lower part and opposite to the first fan-shaped groove 31 in the front and rear direction is formed on the sealing housing 3. A sealing joint 33 is provided on the upper part of the sealing housing 3. The cross-section of the sealing joint 33 is in an I 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.

[0052] Please refer to Figure 6 As shown in the figure, two guide rails 39 in the up and down direction and opposite to each other left and right are provided at the rear end of the sealing housing 3. 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, during use, the sealing plate 30 is in contact with the rear end face of the sealing housing 3. Both the first fan-shaped groove 31 on the sealing plate 30 and the second fan-shaped groove 32 on the sealing housing 3 are larger at one side and smaller at the other side, and the orientations of the first fan-shaped groove 31 and the second fan-shaped groove 32 are opposite. When the smaller ends of the first fan-shaped groove 31 and the second fan-shaped groove 32 approach each other, the edge parts 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 in an I shape, the stepped end on the sealing joint 33 can clamp the sealing plate 30 and the sealing housing 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 swing rod 17 and the connecting rod 18, making the upper pull plate 14 tend to move upward. The sealing plate 30 also tends to move upward with the pull plate 14, thereby pressing 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, 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, and the rotating shaft 16 starts to compress the torsion spring 36 between the fixed cylinder 35, and at the same time, the rotating shaft 16 drives the swing rod 17 to swing clockwise, and the swing rod 17 drives the two connecting rods 18 to move in opposite directions, and the two connecting rods 18 drive the two pull plates 14 to move in opposite directions, and the two pull plates 14 drive the wedge blocks 15 on the upper and lower sides to move in opposite directions, and 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, so that the sealing plate 30 is more stable when sliding, and the sealing between the sealing plate 30 and the sealing housing 3 can be ensured. 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 to separate the sealing joint 33 from the sealing housing 3, so that the staff can take down the sealing housing 3 to inspect the components inside the lighting housing 19.

[0055] In summary, the gap between the sealing shell 3 and the lighting shell 19 is filled with the sealing strip 7 by the contact between the inclined surface of the edge of the sealing shell 3 and the outer surface of 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 all 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. The sealing shell 3 can also play a good protective role on the sealing strip 7. Water molecules are not easy to accumulate on the sealing strip 7, so that the sealing strip 7 is not easily 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 surface 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, and 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, and the stepped end on the sealing joint 33 can clamp the sealing plate 30 and the sealing shell 3 in the middle, resulting in good sealing effect and convenience 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 implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope 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 pressing 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 pressing cylinder (5), a sealing strip (7) being provided in the sealing groove (6), first giving way grooves (8) being provided at the four corners of the pressing cylinder (5), a first pressing portion (9) being provided at each of the first giving way grooves (8) on the pressing cylinder (5), second giving way grooves (10) being provided at the four sides of the pressing cylinder (5), and a second pressing portion (11) being provided at each of the second giving way grooves (10) of the pressing cylinder (5); A connecting portion (12), the connecting portion (12) comprising a plurality of buckles (13) fixedly connected to the lighting assembly (2), the upper and lower parts of the sealed shell (3) being vertically slidably connected with a pull plate (14) in the left and right directions, the left and right ends of the pull plate (14) being provided with a wedge block (15), the middle part of the sealed shell (3) being rotatably connected with a front-to-back axial rotating shaft (16), the rear end of the rotating shaft (16) being provided with a swing rod (17) which is lower on the left and higher on the right, the left and right ends of the swing rod (17) being hinged with a connecting rod (18) in the up and down directions, the free end of the connecting rod (18) being hingedly connected to the middle part of the pull plate (14) on the corresponding side.

2. The sealing structure according to claim 1, characterized in that: 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).

3. The sealing structure according to claim 2, characterized in that: A plurality of fastening bolts (23) are arranged at the edge of the lighting housing (19) in a front-to-rear axial direction and evenly distributed in the up-down direction.

4. The sealing structure according to claim 3, 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 the first pressing plate (25) is provided with a first pressing block (26) located in the first clearance groove (8), and the first pressing block (26) can extend out of the first clearance groove (8).

5. The sealing structure according to claim 4, 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 inside 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 giving way groove (10). The second pressing block (29) can extend out of the second giving way groove (10).

6. The sealing structure according to claim 5, characterized in that: The rear end of the sealing shell (3) is vertically slidably connected with a sealing plate (30), and the sealing plate (30) is fixedly connected to the upper pull plate (14), and 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 smaller upper part and a larger lower part and opposite to the first fan-shaped groove (31) is provided on the sealing shell (3), and 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, and 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.

7. The sealing structure according to claim 6, characterized in that: A hand wheel (34) is coaxially arranged at the front end of the rotating shaft (16), a fixing cylinder (35) coaxial with the rotating shaft (16) is arranged at the rear end of the sealing housing (3), and a torsion spring (36) is arranged 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 fixing cylinder (35).

8. The sealing structure according to claim 7, 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 out of 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 out of the second guide cylinder (27).

9. The sealing structure according to claim 8, characterized in that: The rear end of the sealing shell (3) is provided with two guide rails (39) in the up-down direction and opposite to each other left and right. The sealing plate (30) is located between the two 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).

10. A clean lamp, characterized in that: It includes a lighting lamp bead (20); A sealing structure, wherein the sealing structure is the sealing structure according to any one of claims 1 to 9, and the lighting lamp bead (20) is arranged in a lighting housing (19) of the sealing structure; An electric wire (21), wherein the electric wire (21) is arranged at the upper end of the lighting lamp bead (20), and the free end of the electric wire (21) passes through the center of a sealing joint (33) of the sealing structure, and the sealing joint (33) is used to reduce the gap between the electric wire (21) and the sealing housing (3); A transparent lampshade (22) is arranged 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).

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