A high-mounted lamp for nuclear environment

Abstract

The present invention discloses a high-hanging lamp for a nuclear environment, including a housing. A fixing column is arranged inside the housing, and an installation shell part is arranged at the top of the housing. The installation shell part is connected to the end of the housing through a housing connection part; a screw passes through the gland and is assembled and fixed with the fixing column to fix the gland on the housing. A first through groove is arranged on the gland, and the bottom of the light source assembly is fixedly installed with the first through groove, and there is a gap between the light source assembly and the inner side wall of the first through groove. The present invention conducts a sealing design on the light source assembly and adopts an open structure design between the light source assembly and the housing, which is beneficial to the cleaning of the lamp in places with a relatively complex use environment. The water flow directly passes through the inside of the lamp to clean the surface of the lamp, avoiding the accumulation of dust, ensuring reliable heat dissipation when the lamp works, and ensuring the long-life use of the lamp. Moreover, when cleaning, the light source assembly will not be flooded with water.

Description

Technical Field

[0001] The present invention relates to a lighting fixture, and particularly to a high-hanging lamp for nuclear environment. Background Art

[0002] In nuclear environments such as nuclear power plants, the lighting fixtures have high requirements for sealing and explosion protection. Currently, ordinary lighting fixtures cannot meet these needs. Generally, traditional lighting fixtures such as gas discharge lamps, halogen tungsten lamps, and incandescent lamps are used. They consume a large amount of electricity, have a short lifespan, and insufficient brightness. Although LED lamps can overcome the above defects, they generate a large amount of heat and require explosion protection treatment. Therefore, complex explosion-proof structures need to be added to LED lamps. So far, LED lamps are rarely used in nuclear environments. However, the advantages of LED lamps make them the mainstream lighting fixtures in nuclear environments in the future. Therefore, seizing the market of LED lamps for nuclear environment lighting is crucial for the development of enterprises.

[0003] Therefore, the applicant proposes a high-hanging lamp for nuclear environment, which uses an LED light source and has high explosion-proof performance, good sealing, and good heat dissipation effect. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a high-hanging lamp for nuclear environment.

[0005] To achieve the above object, the present invention provides a high-hanging lamp for nuclear environment, including a housing. A fixing column is arranged inside the housing, and an installation shell part is arranged at the top of the housing. The installation shell part is connected to the end of the housing through a housing connection part.

[0006] A screw passes through a gland and is assembled and fixed with the fixing column to fix the gland on the housing. A first through groove is arranged on the gland, and the bottom of the light source assembly is installed and fixed with the first through groove, and there is a gap between the light source assembly and the inner side wall of the first through groove.

[0007] Preferably, the light source assembly includes a radiator and a light-emitting board. The light-emitting board is fixed inside the radiator, and a light source for emitting light is arranged on the light-emitting board.

[0008] The radiator is provided with heat dissipation fins, connection columns, and wire passing cylinders. Screws pass through the housing and are assembled and fixed with the connection columns to assemble and fix the radiator with the housing.

[0009] Wires pass through the housing and the wire passing cylinders and are connected and conduct electricity with the light source on the light-emitting board. The wire passing cylinders and the wires are sealed with sealant or resin casting.

[0010] The interior of the radiator is tightly fixed to the top of the reflector cover. The bottom of the reflector cover is tightly pressed against the top surface of the light-transmitting plate. A second sealing ring is used to tightly seal between the bottom surface of the light-transmitting plate and the inner side of the limiting inner ring at the bottom of the lamp housing. A fixing part is provided at the top of the lamp housing.

[0011] Preferably, a first through hole is provided on the outer shell. A first gap and a second gap are provided between the fixing part and the inner side of the outer shell. A first through groove is provided between the gland and the outer wall of the lamp housing. And a second through groove is also provided on the gland. The first through hole, the first gap and the second gap can be respectively communicated with the second through groove and the first through groove.

[0012] Preferably, the light-transmitting plate is made of a transparent material.

[0013] Preferably, a first sealing ring is used to tightly seal between the bottom end surface of the radiator, the sealing convex ring and the top surface of the fixing part.

[0014] The sealing convex ring is provided at the top of the reflector cover and is installed between the radiator and the fixing part. A tightening ring is also provided on the reflector cover, and the tightening ring is tightly pressed against the light-transmitting plate.

[0015] Preferably, a heat dissipation body and a limiting post are further provided on the radiator. A heat dissipation installation cavity is provided inside the heat dissipation body. The light-emitting plate is installed in the heat dissipation installation cavity and is tightly attached to the closed surface of the heat dissipation installation cavity.

[0016] A heat dissipation installation protrusion is provided at one end of the heat dissipation body away from the heat dissipation fins. After a screw passes through the installation protrusion, it is assembled and fixed with the fixing part to assemble and fix the radiator and the lamp housing.

[0017] The limiting post is used to tightly attach to the inner top surface of the outer shell, and there is a gap between the top surface of the heat dissipation fins and the inner top surface of the outer shell.

[0018] Preferably, a heat conduction plate is installed in the heat dissipation installation cavity. A heat dissipation installation groove is provided on the heat conduction plate. A semiconductor refrigeration sheet is installed in the heat dissipation installation groove. The refrigerating surface of the semiconductor refrigeration sheet is tightly attached to the heat conduction plate, and the heating surface of the semiconductor refrigeration sheet is tightly attached to the heat dissipation body. The electric energy of the semiconductor refrigeration sheet is provided through a wire.

[0019] Preferably, an installation component is further included. The installation component includes an installation frame. Installation legs and installation through holes are provided on the installation frame. The installation through holes are used to be assembled and fixed with external equipment through bolts. Damping installation holes are provided on the installation legs, and the damping installation holes are sleeved on the damping fixing cylinders.

[0020] The described mounting shell part is provided with mounting through holes, and shock-absorbing cylinders are fixed outside the mounting through holes. A shock-absorbing fixed cylinder and an assembly table are arranged on the shock-absorbing cylinders. A plurality of mounting limit holes evenly distributed in the circumferential direction are arranged on the assembly table.

[0021] The locking screw passes through the mounting fixing hole arranged on the mounting leg and is assembled and fixed with the mounting limit hole.

[0022] Preferably, the inner wall of the shock-absorbing fixed cylinder and the outer wall of the first support connection cylinder of the support cylinder are assembled by screw thread. A limit outer table, a limit inner table, and a second support connection cylinder are also arranged on the support cylinder. The limit outer table is in tight contact with the end face of the shock-absorbing fixed cylinder. The limit inner table is in tight contact with the locking fixed end of the locking cylinder. And the locking cylinder is installed in the second support connection cylinder. A locking groove is also arranged on the locking cylinder.

[0023] The locking groove is assembled and clamped with the locking protrusion. The locking protrusion is arranged on the clamping cylinder. An end limit part is also arranged on the clamping cylinder. The end limit part is in tight contact with the inner wall of the locking cap.

[0024] The other end of the clamping cylinder is installed between the second support connection cylinder and the outer wall of the locking cylinder. And a sealing cylinder is installed in the groove between the end face of the clamping cylinder and the second support connection cylinder, the locking cylinder, and the locking fixed end.

[0025] The inner wall of the locking cap and the second support connection cylinder are assembled by screw thread. A wire passing hole is also arranged on the locking cap. The wire passes through the wire passing hole, the inside of the locking cylinder, and the inside of the shock-absorbing fixed cylinder and then enters the wire passing cylinder.

[0026] The wire is clamped and assembled with the inner wall of the locking cylinder. The locking cylinder and the sealing cylinder are made of elastic soft materials. The clamping cylinder is composed of two halves.

[0027] Preferably, a constant current source for providing electric energy for the light source and a wiring terminal for connecting and conducting electricity with the wire are installed inside the mounting shell part. The wire is connected and conducts electricity with the power input end of the wiring terminal. The power output end of the wiring terminal is connected and conducts electricity with the power input end of the constant current source. The power output end of the constant current source is connected and conducts electricity with the power input end of the controller through the wire. The power output end of the controller is connected and conducts electricity with the light source through the wire. The top of the mounting shell part is sealed by a top cover.

[0028] The beneficial effects of the present invention are as follows: The present invention conducts a sealing design on the light source assembly and adopts an open structure design between the light source assembly and the outer shell, so that the light source assembly has high explosion-proof performance and sealing performance and is beneficial to cleaning the lamp in a place with a relatively complex use environment. The water flow directly passes through the inside of the lamp to clean the surface of the lamp, avoiding the accumulation of dust, ensuring reliable heat dissipation when the lamp works, and ensuring the long-life use of the lamp. Moreover, when cleaning, the light source assembly will not get water.

[0029] The present invention can also be provided with multiple groups of light source components to achieve the purpose of increasing brightness. In theory, wireless expansion can be achieved, thereby increasing its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0031] Figure 2 It is an exploded view of parts of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0032] Figure 3 It is a schematic structural diagram of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0033] Figure 4 It is Figure 3 a cross-sectional view of the structure at F1 in

[0034] Figure 5 It is a schematic structural diagram of a clamping cylinder of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0035] Figure 6 It is a schematic structural diagram of a mounting bracket of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0036] Figure 7 It is a schematic structural diagram of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0037] Figure 8 It is an exploded view of a light source component of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0038] Figure 9 It is an exploded view of parts of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0039] Figure 10 It is a schematic structural diagram of a radiator of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0040] Figure 11 It is a schematic structural diagram of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0041] Figure 12 It is a schematic diagram of the cleaning water flow direction of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0042] Figure 13 It is a schematic structural diagram of a housing of a specific embodiment of a high-hanging lamp for nuclear environment according to the present invention.

[0043] Figure 14It is a schematic diagram of the gland structure of a specific embodiment of a high-hanging lamp for a nuclear environment according to the present invention.

[0044] Figure 15 It is a schematic diagram of the radiator structure of a specific embodiment of a high-hanging lamp for a nuclear environment according to the present invention.

[0045] Figure 16 It is another schematic diagram of the radiator of a specific embodiment of a high-hanging lamp for a nuclear environment according to the present invention. Specific embodiments

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0047] See Figures 1 - 15 , a high-hanging lamp for a nuclear environment, comprising a housing 100, a fixing column 110 is arranged inside the housing 100, and an installation shell part 120 is arranged at the top of the housing. The installation shell part 120 is connected to the end part 140 of the housing through a housing connection part 130;

[0048] The screw passes through the gland 600 and is assembled and fixed with the fixing column 110 to fix the gland 600 on the housing 100. A first through groove 601 is arranged on the gland 600, and the first through groove 601 is fixedly installed at the bottom of the light source assembly 700, and there is a gap between the light source assembly 700 and the inner side wall of the first through groove 601;

[0049] The light source assembly 700 includes a radiator 300 and a light-emitting plate 430. The light-emitting plate 430 is fixed inside the radiator 300, and a light source for emitting light, such as an LED lamp bead, an LED light bar, etc., is arranged on the light-emitting plate 430;

[0050] The radiator 300 is provided with heat dissipation fins 310, connection columns 320, and wire passing cylinders 330. The screw passes through the housing 100 and is assembled and fixed with the connection column 320 to assemble and fix the radiator with the housing;

[0051] The wire 440 passes through the housing 100 and the wire passing cylinder 330 and then is connected to the light source on the light-emitting plate to conduct electricity, so that the light source emits light;

[0052] The wire passing cylinder 330 and the wire 440 are sealed with sealant 340, which can ensure that the wire passing cylinder 330 is in a sealed state;

[0053] Inside the radiator 300, it is tightly fixed to the top of the reflector 420. The bottom of the reflector 420 is tightly pressed against the top surface of the light-transmitting plate 410. The light-transmitting plate 410 is made of a transparent material, and between the bottom surface of the light-transmitting plate 410 and the inner side of the limit inner ring 220 at the bottom of the lamp housing 200, it is tightly sealed through the second sealing ring 520. The top of the lamp housing 200 is provided with a fixing part 210;

[0054] Between the bottom end surface of the radiator 300, the sealing convex ring 422 and the top surface of the fixing part 210, it is tightly sealed through the first sealing ring 510;

[0055] The sealing convex ring 422 is arranged at the top of the reflector 420 and is installed between the radiator 300 and the fixing part 210; this design can enable a seal to be obtained between the radiator and the lamp cover;

[0056] Through the seals of the first sealing ring, the second sealing ring 520, and the sealant 340, the inner cavity 421 can be in a sealed state.

[0057] A tightening ring 423 is further arranged on the reflector 420, and the tightening ring 423 is tightly pressed against the light-transmitting plate 410;

[0058] A first through hole 102 is arranged on the outer shell 100. Between the fixing part 210 and the inner side of the outer shell 100, there are a first gap 101 and a second gap 103. Between the gland 600 and the outer wall of the lamp housing 200, there is a first through groove 601, and a second through groove 602 is further arranged on the gland 300; the first through hole 102, the first gap 101, and the second gap 103 can be respectively communicated with the second through groove 602 and the first through groove 601.

[0059] This design is beneficial to the heat dissipation of the entire lamp, and the light source assembly 700 is in a sealed state, with higher safety, and also has better explosion-proof performance.

[0060] In addition, this open-structured design is beneficial to the cleaning of the lamp in places with a relatively complex use environment. The water flow directly passes through the inside of the lamp to clean the surface of the lamp, avoiding the accumulation of dust, ensuring reliable heat dissipation when the lamp is working, and ensuring the long-life use of the lamp. Moreover, when cleaning, the light source assembly will not get water. See Figure 12 which shows the water flow direction during cleaning (the arrow direction in the figure). Through Figure 12 it can be seen that basically all the light source assemblies inside the present invention can be cleaned, and the water flow direction is diversified, making the cleaning more convenient and thorough.

[0061] This design can also enable the air flow to circulate around the radiator or directly blow towards the radiator fins, which can effectively improve the heat dissipation efficiency of the radiator.

[0062] Preferably, a heat dissipation body 380 and a limit post 360 are further provided on the radiator 300. A heat dissipation installation cavity 381 is arranged inside the heat dissipation body 380. The light-emitting plate 430 is installed in the heat dissipation installation cavity 381 and is in close contact with the closed surface of the heat dissipation installation cavity.

[0063] A heat dissipation installation protrusion 370 is arranged at one end of the heat dissipation body 380 away from the heat sink 310. During installation, after the screw passes through the installation protrusion 370, it is assembled and fixed with the fixing part 210 to assemble and fix the radiator and the lamp housing 200.

[0064] The limit post 360 is used to be in close contact with the inner top surface of the outer shell 100, so as to prevent the top surface of the heat sink from directly contacting the inner top surface of the outer shell 100 and improve the heat dissipation efficiency of the heat sink.

[0065] See Figure 16 , in order to improve the heat dissipation efficiency of the radiator 300 for the light-emitting plate, the following improvements can be made:

[0066] A heat conduction plate 920 is installed in the heat dissipation installation cavity 381. A heat dissipation installation groove 921 is provided on the heat conduction plate 920. A semiconductor refrigeration sheet 910 is installed in the heat dissipation installation groove 921. The refrigerating surface of the semiconductor refrigeration sheet is in close contact with the heat conduction plate 920, and the heating surface of the semiconductor refrigeration sheet 910 is in close contact with the heat dissipation body 380. The electric energy of the semiconductor refrigeration sheet is provided through a wire 440. During use, the semiconductor refrigeration sheet refrigerates, and can quickly reduce the heat of the light-emitting plate.

[0067] See Figures 1 - 6 , preferably, an installation component is further included. The installation component includes an installation frame 800. Installation legs 810 and installation through holes 801 are arranged on the installation frame 800. The installation through holes 801 are used to be assembled and fixed with external equipment through bolts. Damping installation holes 811 are provided on the installation legs 810, and the damping installation holes 811 are sleeved on the damping fixing cylinder 151.

[0068] Installation through holes 121 are provided on the installation shell part 120. A damping cylinder 150 is fixed outside the installation through holes 121. A damping fixing cylinder 151 and an assembly table 152 are arranged on the damping cylinder 150. A plurality of installation limit holes 1521 evenly distributed in the circumferential direction are provided on the assembly table 152.

[0069] The inner wall of the shock-absorbing fixed cylinder 151 is assembled with the outer wall of the first support connection cylinder 8241 of the support cylinder 824 by screw-threading. The support cylinder 824 is also provided with a limiting outer platform 8242, a limiting inner platform 8243, and a second support connection cylinder 8244. The limiting outer platform 8242 is in close contact with the end face of the shock-absorbing fixed cylinder 151. The limiting inner platform 8243 is in close contact with the locking fixed end 8222 of the locking cylinder 822. And the locking cylinder 822 is installed in the second support connection cylinder 8244. The locking cylinder 822 is also provided with a locking groove 8221;

[0070] The locking groove 8221 is assembled and clamped with the locking protrusion 8252. The locking protrusion 8252 is arranged on the clamping cylinder 825. The clamping cylinder 825 is also provided with an end limiting part 8251. The end limiting part 8251 is in close contact with the inner wall of the locking cap 821;

[0071] The other end of the clamping cylinder 825 is installed between the outer walls of the second support connection cylinder 8244 and the locking cylinder 822. And a sealing cylinder 823 is installed in the groove between the end face of the clamping cylinder 825, the second support connection cylinder 8244, the locking cylinder 822, and the locking fixed end 8222;

[0072] The inner wall of the locking cap 821 is assembled with the second support connection cylinder 8244 by screw-threading. The locking cap 821 is also provided with a wire passing hole 8211. The wire 440 passes through the wire passing hole 8211, the inside of the locking cylinder 822, and the inside of the shock-absorbing fixed cylinder 151 and then enters the wire passing cylinder 330;

[0073] The wire 440 is clamped and assembled with the inner wall of the locking cylinder 822. The locking cylinder and the sealing cylinder are made of elastic soft materials such as rubber and silica gel.

[0074] The clamping cylinder 825 is composed of two halves. This design can facilitate the assembly of the clamping cylinder 825 and the locking cylinder 822.

[0075] During use, the locking cap 821 applies pressure to the locking cylinder 822 through the end limiting part 8251, so that the locking cylinder is clamped and sealed with the wire 440. The sealing cylinder is used to seal the gap between the outer walls of the second support connection cylinder 8244 and the locking cylinder 822.

[0076] This design can prevent external dust and sundries from entering the installation shell part 120, thereby polluting the electrical equipment inside the installation shell part 120, such as circuit boards, controllers, etc. For details, reference can be made to existing high-hanging lights.

[0077] During installation, after simply adjusting the angle of the mounting bracket 800, pass the locking screw 850 through the mounting fixing hole 812 provided on the mounting leg 810 and then assemble and fix it with the mounting limit hole 1521. Then, pass a bolt through the mounting through-hole 801 and assemble and fix it with an external device (such as a ceiling) to fix the high-hanging lamp.

[0078] This design can effectively adjust the angle between the mounting bracket 800 and the mounting shell part 120. At the same time, after being locked by the locking screw 850, the mounting bracket will not change its angle with the mounting shell part 120 due to external or housing vibration, playing an anti-seismic role. Thus, it prevents the angle between the mounting bracket 800 and the mounting shell part 120 from changing after long-term use of the present invention in a vibrating environment, saving the effort of readjustment.

[0079] Furthermore, a constant current source 840 for supplying electrical energy to the light source and a wiring terminal 840 for connecting and conducting electricity with a wire are installed inside the mounting shell part 120. The wire is connected and conducts electricity with the power input end of the wiring terminal. The power output end of the wiring terminal is connected and conducts electricity with the power input end of the constant current source. The power output end of the constant current source is connected and conducts electricity with the power input end of a controller (not shown in the figure, refer to the controller or circuit board of an existing high-hanging lamp) through a wire, and the power output end of the controller is connected and conducts electricity with the light source through a wire. The top (open end) of the mounting shell part 120 is sealed by a top cover 160.

[0080] Details not described in the present invention are all well-known techniques to those skilled in the art.

[0081] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the existing technology shall fall within the protection scope determined by the claims.

Claims

1. A high-hanging lamp for nuclear environment, comprising a housing, characterized in that: Fixing columns are arranged on the inner side of the housing, and an installation shell part is arranged on the top of the housing. The installation shell part is connected to the end of the housing through a housing connection part; A screw passes through the gland and is assembled and fixed with the fixing column to fix the gland on the housing. A first through groove is arranged on the gland, and the bottom of the light source assembly is installed and fixed with the first through groove; There is a gap between the light source assembly and the inner side wall of the first through groove. The light source assembly includes a radiator and a light-emitting plate. The light-emitting plate is fixed inside the radiator, and a light source for emitting light is arranged on the light-emitting plate; The radiator is provided with heat dissipation fins, connecting columns and wire passing cylinders. A screw passes through the housing and is assembled and fixed with the connecting column to assemble and fix the radiator and the housing; The wire passes through the housing and the wire passing cylinder and is connected and conducted with the light source on the light-emitting plate; The wire passing cylinder and the wire are sealed by sealant or resin pouring; The inside of the radiator is tightly fixed with the top of the reflector. The bottom of the reflector is tightly pressed against the top surface of the light-transmitting plate. The bottom surface of the light-transmitting plate and the inner side of the limit inner ring at the bottom of the lamp housing are tightly sealed by a second sealing ring. A fixing part is arranged at the top of the lamp housing; A first through hole is arranged on the housing. There is a first gap and a second gap between the fixing part and the inner side of the housing. A first through groove is arranged between the gland and the outer wall of the lamp housing, and a second through groove is also arranged on the gland; The first through hole, the first gap and the second gap can be respectively communicated with the second through groove and the first through groove; The radiator is also provided with a heat dissipation body and a limit post. A heat dissipation installation cavity is arranged inside the heat dissipation body. The light-emitting plate is installed in the heat dissipation installation cavity and is closely attached to the closed surface of the heat dissipation installation cavity; A heat dissipation installation protrusion is arranged at one end of the heat dissipation body away from the heat dissipation fins. A screw passes through the installation protrusion and is assembled and fixed with the fixing part to assemble and fix the radiator and the lamp housing; The limit post is used to be closely attached to the inner top surface of the housing, and there is a gap between the top surface of the heat dissipation fin and the inner top surface of the housing.

2. The high-hanging lamp for nuclear environment according to claim 1, characterized in that: The light-transmitting plate is made of a transparent material.

3. The high-hanging lamp for nuclear environment according to claim 1, characterized in that: The bottom end surface of the radiator, the sealing convex ring and the top surface of the fixing part are tightly sealed by a first sealing ring; The sealing convex ring is arranged on the top of the reflector and is installed between the radiator and the fixing part; A top pressing ring is also arranged on the reflector, and the top pressing ring is tightly pressed against the light-transmitting plate.

4. The high-hanging lamp for nuclear environment according to claim 1, characterized in that: A heat conduction plate is installed in the heat dissipation installation cavity. A heat dissipation installation groove is arranged on the heat conduction plate. A semiconductor refrigeration sheet is installed in the heat dissipation installation groove. The refrigerating surface of the semiconductor refrigeration sheet is closely attached to the heat conduction plate, and the heating surface of the semiconductor refrigeration sheet is closely attached to the heat dissipation body. The electric energy of the semiconductor refrigeration sheet is provided by a wire.

5. The high-hanging lamp for nuclear environment according to claim 1, characterized in that: It further includes an installation component. The installation component includes an installation frame, on which installation legs and installation through holes are provided. The installation through holes are used for assembling and fixing with external devices through bolts. Shock-absorbing installation holes are provided on the installation legs, and the shock-absorbing installation holes are sleeved on shock-absorbing fixing cylinders. Installation through holes are provided on a part of the installation shell. A shock-absorbing cylinder is fixed outside the installation through holes. A shock-absorbing fixing cylinder and an assembly table are provided on the shock-absorbing cylinder. Several installation limiting holes evenly distributed in the circumferential direction are provided on the assembly table. The locking screw passes through the installation fixing hole provided on the installation leg and is assembled and fixed with the installation limiting hole.

6. The high-hanging lamp for nuclear environment according to claim 5, characterized in that: The inner wall of the shock-absorbing fixing cylinder and the outer wall of the first support connection cylinder of the support cylinder are assembled by screw thread. A limiting outer platform, a limiting inner platform and a second support connection cylinder are further provided on the support cylinder. The limiting outer platform is in close contact with the end face of the shock-absorbing fixing cylinder. The limiting inner platform is in close contact with the locking fixed end of the locking cylinder. And the locking cylinder is installed in the second support connection cylinder. A locking groove is further provided on the locking cylinder. The locking groove is assembled and clamped with a locking protrusion. The locking protrusion is provided on the clamping cylinder. An end limiting part is further provided on the clamping cylinder. The end limiting part is in close contact with the inner wall of the locking cap. The other end of the clamping cylinder is installed between the second support connection cylinder and the outer wall of the locking cylinder. And a sealing cylinder is installed in the groove between the end face of the clamping cylinder and the second support connection cylinder, the locking cylinder and the locking fixed end. The inner wall of the locking cap and the second support connection cylinder are assembled by screw thread. A wire passing hole is further provided on the locking cap. The wire passes through the wire passing hole, the inside of the locking cylinder and the inside of the shock-absorbing fixing cylinder and then enters the wire passing cylinder. The wire is clamped and assembled with the inner wall of the locking cylinder. The locking cylinder and the sealing cylinder are made of elastic soft materials. The clamping cylinder is composed of two halves.

7. The high-hanging lamp for nuclear environment according to claim 5 or 6, characterized in that: A constant current source for supplying electric energy to the light source and a wiring terminal for connecting and conducting electricity with the wire are installed inside the installation shell part. The wire is connected and conducts electricity with the incoming power end of the wiring terminal. The outgoing power end of the wiring terminal is connected and conducts electricity with the incoming power end of the constant current source. The outgoing power end of the constant current source is connected and conducts electricity with the incoming power end of the controller through a wire. The outgoing power end of the controller is connected and conducts electricity with the light source through a wire. The top of the installation shell part is sealed by a top cover.

Images