A constant current source core-pulling structure and lamp thereof

Abstract

The present invention discloses a constant current source core-pulling structure, comprising a constant current source and a lamp housing installed outside the constant current source, a cover plate fixedly installed on the bottom of the lamp housing, a mounting plate fixedly provided on the top and bottom of the constant current source, the mounting plate located at the bottom of the constant current source contacts the top of the cover plate, a cavity provided on both sides of the mounting plate located at the bottom of the constant current source is provided on the lamp housing, a fixed blind groove is provided on the side of the mounting plate close to the cavity, a positioning fixing block is movably installed in the fixed blind groove, and the positioning fixing block extends into the cavity on the side close to the cavity, a movable column is slidably installed on the bottom inner wall of the cavity, and the top of one side of the movable column is fixedly connected to the positioning fixing block. The present invention has a simple structure and is easy to operate, and the constant current source is firmly fixed and installed in the lamp housing. The present invention also discloses a lamp that uses the above-mentioned constant current source core-pulling structure.

Description

Technical Field

[0001] The present invention relates to the field of lamps, and in particular to a constant current source core-pulling structure. Background Art

[0002] A lamp is a device that transmits, distributes, and alters the light distribution of a light source. Besides the light source, it includes all components needed to secure and protect it, as well as the wiring accessories necessary to connect it to a constant current source. Some lamps often have a constant current source installed within their housing. This source, also known as a current source or a steady current source, is a wide-spectrum, high-precision AC constant current source.

[0003] At present, when the constant current source is installed inside the lamp housing, a core-pulling structure is generally adopted, that is, the constant current source is placed inside the lamp housing to facilitate assembly and improve efficiency. However, in the existing technology, the constant current source is not firmly fixed after installation, and the constant current source is prone to shaking in the lamp housing, which can easily cause the constant current source and the lamp housing to collide and be damaged. For this reason, we provide a constant current source core-pulling structure. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a constant current source core-pulling structure.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A constant current source core pulling structure comprises a constant current source and a lamp housing installed outside the constant current source, a cover plate is fixedly installed on the bottom of the lamp housing, a mounting plate is fixedly provided on the top and bottom of the constant current source, the mounting plate located at the bottom of the constant current source contacts the top of the cover plate, a cavity is provided on both sides of the mounting plate located at the bottom of the constant current source, a fixed blind groove is provided on the side of the mounting plate close to the cavity, a positioning fixing block is movably installed in the fixed blind groove, and the side of the positioning fixing block close to the cavity extends into the cavity, a movable column is slidably installed on the bottom inner wall of the cavity, and the top of one side of the movable column is fixedly connected to the positioning fixing block, and a fixing block is provided below the positioning fixing block. The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

[0007] The invention also discloses a lamp using the constant current source core-pulling structure.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] When the cam is in a closed position, the spring will engage with the guide rail and the guide rail will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam, and the locking cam will engage with the locking cam,

[0010] In summary, the present invention has a simple structure and is easy to operate. The constant current source is firmly fixed in the lamp housing and is not easy to shake after installation, thereby avoiding collision between the constant current source and the inner wall of the lamp housing after installation, which is beneficial to preventing the constant current source from being damaged due to collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the lamp of the present invention.

[0012] Figure 2 It is a structural schematic diagram of the lamp of the present invention.

[0013] Figure 3 It is a structural schematic diagram of the lamp of the present invention.

[0014] Figure 4 It is a structural schematic diagram of the lamp of the present invention.

[0015] Figure 5 Schematic diagram of the structure of the air permeable plate.

[0016] Figure 6 for Figure 4 Enlarged image at F5 in the middle.

[0017] Figure 7 This is the structural main view of the cover.

[0018] Figure 8 This is a top view of the cover structure.

[0019] Figure 9 This is the main cross-sectional view of the cover structure.

[0020] Figure 10 for Figure 9 Enlarged view of F2 in the middle.

[0021] Figure 11 This is a bottom view of the structure of the light source arrangement and installation structure.

[0022] Figure 12 This is the main cross-sectional view of the structure of the light source arrangement and installation structure.

[0023] Figure 13 This is the structural front view of the light source arrangement and installation structure.

[0024] Figure 14 This is a bottom view of the structural mounting seat of the light source arrangement and installation structure.

[0025] Figure 15 It is a structural diagram of the constant current source core-pulling structure.

[0026] Figure 16 for Figure 15 Schematic diagram of the structure with the F4 part enlarged.

[0027] Figure 17 It is a top view schematic diagram of the installation plate in the constant current source core-pulling structure. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-Figure 3 A lamp includes a breathable plate 110, a transparent cover 120, a first housing seal 150, a reflector 200, a light source board 300, and a radiator 400. The light source board 300 and the reflector 200 are fixed on the radiator 400, and the light source board 300 is placed in the light source and installed on the left side of the reflector ( Figure 3 After the light source board is powered on, the light source emits light and the reflector reflects the light;

[0030] The radiator 400 is also sealed and assembled with the transparent cover 120 through the first housing sealing ring 150, and the transparent cover is in a transparent state;

[0031] The transparent cover 120 is provided with a transparent mounting hole 121, which is assembled with the air permeable plate 110. The air permeable plate is provided with several through-holes, which are mainly used to allow external air to enter the transparent cover, thereby increasing the heat dissipation effect of the light source.

[0032] It also includes a cover plate 130, which is fixed on the radiator 400 and is sealed and assembled with one end of the constant current source housing 510 through a second shell sealing ring 140. The other end of the constant current source housing 510 is assembled through an end cover 520, and a constant current source 500 is installed in the constant current source housing 510.

[0033] The air permeable plate 110 is installed on the transparent cover with self-tapping screws, the light source board is coated with thermal grease and attached to the radiator, the transparent cover is connected to the radiator with screws, the cover is installed on the other side of the radiator (opposite to the light source board), and the constant current source housing 510 is installed on the cover and connected with screws.

[0034] See also Figure 4-Figure 6 The air permeable plate 110 forms a heat convection structure with the transparent cover and the radiator. Specifically, the heat convection structure includes a radiator 400. A transparent cover 120 is fixedly mounted on the bottom of the radiator 400. The transparent cover 120 is provided with a heat dissipation port, which is adapted to the radiator 400. The air permeable plate 110 is mounted at the heat dissipation port on the transparent cover 120. The air permeable plate 110 is a disc-shaped structure. A first air permeable hole 610 is provided at the center of the air permeable plate 110. A plurality of second air permeable holes 620 are provided on the circumference outside the first air permeable hole 610.

[0035] The main fixing column 630 is fixedly welded at the center of the bottom of the radiator 400, and the main fixing column 630 is located in the heat dissipation port on the transparent cover 120. The bottom end of the main fixing column 630 contacts the top of the air permeable plate 110. A matching thread groove 641 is provided on the bottom end of the main fixing column 630. A connecting screw 642 is installed with the inner thread of the matching thread groove 641. The bottom end of the connecting screw 642 is movable through the first air vent 610 and is fixedly connected with a screw head 651. The screw head 651 is located below the air permeable plate 110. The screw A small washer 661 and a large washer 662 are provided between the head 651 and the breathable plate 110, and the small washer 661 is located at the bottom of the large washer 662. The small washer 661 and the large washer 662 are both sleeved on the connecting screw 642. The connecting screw 642 is provided with a cavity 710. A movable connecting column 740 is slidably connected in the cavity 710. The movable connecting column 740 slides and extends into the matching thread groove 641 and is rotatably connected to the bearing seat 760. The bottom end of the movable connecting column 740 is fixedly connected to the movable protrusion 730. The movable protrusion 73 0 are respectively connected to the inner walls of the two sides of the cavity 710 in a sliding manner. A first elastic piece 720 is provided in the cavity 710. The top of the first elastic piece 720 is fixedly connected to the bottom of the movable protrusion 730. The bottom end of the first elastic piece 720 is fixedly connected to the bottom inner wall of the cavity 710. A rotating seat 770 is movably installed in the thread groove 641, and the top of the rotating seat 770 is in contact with the top inner wall of the thread groove 641. A movable groove body 780 is provided at the bottom of the rotating seat 770, and the bearing seat 760 is slidably installed in the movable groove body 7 80, a second spring piece 790 is provided in the movable groove body 780, and the top end of the second spring piece 790 is fixedly connected to the top inner wall of the movable groove body 780, and the bottom end of the second spring piece 790 is fixedly connected to the top of the bearing seat 760. The present invention has a simple structure, is economical and practical, and the hot air flow in the center of the radiator 400 can flow out through the multiple second air holes 620 on the air permeable plate 110, which can make the heat dissipation more sufficient and more uniform, and the air permeable plate 110 is firmly installed and fixed, which is conducive to ensuring uniform heat dissipation of the hot air flow in the radiator 400.

[0036] The radiator 400 is provided with a plurality of heat sinks 410, and the plurality of heat sinks 410 are arranged at equal distances. The bottom of the screw head 651 is provided with a flat-shaped screwdriver blade. A through hole 750 is provided on the top inner wall of the cavity 710, and the movable connecting column 740 slides through the through hole 750. Sliding blocks are provided on both sides of the movable protrusion 730. Sliding grooves are provided on both sides of the inner walls of the cavity 710, and the sliding blocks are slidably installed in the sliding grooves. Sliding limit blocks 800 are provided on both sides of the bearing seat 760 located in the movable groove body 780. Limiting grooves are provided on both sides of the inner walls of the movable groove body 780, and the sliding limit blocks 800 are slidably installed in the limiting grooves. The present invention has a simple structure, is economical and practical, and the hot air flow in the center of the radiator 400 can flow out through the plurality of second air holes 620 on the air permeable plate 110, which can make the heat dissipation more sufficient and more uniform. In addition, the air permeable plate 110 is firmly installed and fixed, which is conducive to ensuring uniform heat dissipation of the hot air flow in the radiator 400.

[0037] In the present invention, the hot air flow on the radiator 400 can not only flow between the gaps of the heat sink 410, but the hot air flow in the center of the radiator 400 can also flow out from the multiple second air holes 620 on the lower air permeable plate 110, which can make the heat dissipation more sufficient and more uniform; and the air permeable plate 110 is firmly installed and fixed to ensure uniform heat dissipation. The specific operation is as follows: the small washer 661 and the large washer 662 are sequentially mounted on the connecting screw 642, and then the rotating seat 770 is placed into the matching thread groove 641, and then the connecting screw 642 is threadedly rotated into the matching thread groove 641. At the same time, the movable connecting column 740 and the bearing seat 760 rotate, and the movable connecting column 740 squeezes the first elastic piece 720 through the movable protrusion 730, and the bearing seat 760 squeezes the first elastic piece 720 in the movable groove body 780. The second spring piece 790, at the same time, the top of the rotating seat 770 contacts the top inner wall of the matching thread groove 641, and the screw head 651 squeezes the breathable plate 110 against the bottom end of the main fixing column 630 through the small washer 661 and the large washer 662. In this way, the connecting screw 642 is threadedly locked in the matching thread groove 641 to fix the breathable plate 110 to the bottom end of the main fixing column 630. In this process, the first spring piece 720 and the second spring piece 790 are both squeezed and deformed. After installation, the first spring piece 720 and the second spring piece 790 will produce elastic reaction, which makes the connecting screw 642 and the matching thread groove 641 threadedly locked more firmly to prevent loosening, effectively ensuring the stability of the breathable plate 110 after installation, so that the hot air flow in the radiator 400 can dissipate heat evenly.

[0038] See also Figure 7-10The cover plate includes a radiator 400, a cover plate 130 is provided above the radiator 400, and a push rod 136 is symmetrically welded on the top inner wall of the cover plate 130. Two limit seats 131 are symmetrically fixedly installed on the top of the radiator 400, and a limit groove 132 is provided on the top of the limit seat 131. A push plate 137 is slidably connected in the limit groove 132. The bottom end of the push rod 136 extends into the limit groove 132 and contacts the top of the push plate 137. A brake seat 133 is fixedly installed on the top of the radiator 400. The brake seat 133 is located between the two limit seats 131. A second movable groove 134 is provided on the top of the brake seat 133. The inner walls on both sides of the groove 134 are rotatably connected with the first clamping plate 164 and the first clamping plate 165, and the first clamping plate 164 and the first clamping plate 165 are both provided with a slot on the side close to each other. A support column 135 is welded on the top inner wall of the cover 130, and the bottom end of the support column 135 extends into the second movable groove 134 and is welded with a brake plate 162. Both sides of the brake plate 162 extend into the slot and are clamped with the slot. The top of the first clamping plate 164 and the first clamping plate 165 close to each other is rotatably connected with a runner 169. Through the radiator 400, the cover 130, the limit seat 131, the limit slot 132, the brake seat 133, the second The movable groove 134, the support column 135, the push rod 136, the push plate 137 and the first spring 160 cooperate to push the cover plate 130, so that the brake plate 162 moves in the second movable groove 134 to contact with the rotating wheel 169, thereby driving the rotating wheel 169 to rotate. When the rotating wheel 169 rotates, it can respectively drive the first clamping plate 164 and the first clamping plate 165 to rotate. Through the cooperation of the brake plate 162, the rotating shaft 163, the first clamping plate 164, the first clamping plate 165, the first limiting tube 166, the second limiting tube 167, the second spring 168, the rotating wheel 169 and the rotating groove 161, when the brake plate 162 moves downward to contact with the rotating wheel 169, the first clamping plate 164 and the first clamping plate 165 can be driven to rotate. When the rotating wheel 169 loses contact, the two sides of the brake plate 162 will contact the first clamping plate 164 and the first clamping plate 165, and under the action of the second spring 168, the clamping slot can clamp the brake plate 162. In the present invention, pushing the cover plate 130 can make the brake plate 162 drive the first clamping plate 164 and the first clamping plate 165 to rotate respectively. When the brake plate 162 moves to the notch of the clamping slot, it can drive the clamping slot to rotate under the action of the second spring 168, and clamp the brake plate 162, so that when the cover plate 130 is fixed to the radiator 400, the cover plate 130 will not be deformed due to uneven force.

[0039] In the present invention, a first spring 160 is welded to the inner wall of the bottom of the limiting groove 132, and the top of the first spring 160 is welded to the bottom of the push plate 137. A first limiting tube 166 is welded to one side of the first clamping plate 164. The first limiting tube 166 is located below the card slot. A second limiting tube 167 is slidably connected in the first limiting tube 166. One end of the second limiting tube 167 extends into the second movable groove 134 and is welded to one side of the first clamping plate 165. A second spring 168 is welded to one side of the first clamping plate 164, and the second spring 168 is located in the first limiting tube 166. One end of the second spring 168 extends to the second limiting tube 167. The first clamping plate 164 and the first clamping plate 165 are welded to one side of the first clamping plate 165, and two rotating grooves 161 are symmetrically provided on the inner walls of both sides of the second movable groove 134. A rotating shaft 163 is welded on the inner wall of one side of the rotating groove 161. The two rotating shafts 163 are located in the second movable groove 134 on the side close to each other. The first clamping plate 164 and the first clamping plate 165 are respectively rotatably connected with the rotating shaft 163. The top of the side close to each other of the first clamping plate 164 and the first clamping plate 165 is provided with a connecting groove. One side of the runner 169 is located in the connecting groove and is rotatably connected to the connecting groove. Through the radiator 400, the cover plate 130, the limit seat 131, the limit groove 132, the brake seat 133, the first clamping plate 164 and the first clamping plate 165 The second movable groove 134, the support column 135, the push rod 136, the push plate 137 and the first spring 160 cooperate to push the cover plate 130, so that the brake plate 162 moves in the second movable groove 134 to contact with the rotating wheel 169, thereby driving the rotating wheel 169 to rotate. When the rotating wheel 169 rotates, it can respectively drive the first clamping plate 164 and the first clamping plate 165 to rotate. Through the cooperation of the brake plate 162, the rotating shaft 163, the first clamping plate 164, the first clamping plate 165, the first limiting tube 166, the second limiting tube 167, the second spring 168, the rotating wheel 169 and the rotating groove 161, when the brake plate 162 moves downward to When the contact with the rotating wheel 169 is lost, the two sides of the brake plate 162 will contact the first clamping plate 164 and the first clamping plate 165, and under the action of the second spring 168, the clamping slot can clamp the brake plate 162. In the present invention, pushing the cover plate 130 can make the brake plate 162 drive the first clamping plate 164 and the first clamping plate 165 to rotate respectively. When the brake plate 162 moves to the notch of the clamping slot, it can drive the clamping slot to rotate under the action of the second spring 168, clamping the brake plate 162, so that when the cover plate 130 is fixed to the radiator 400, the cover plate 130 will not be deformed due to uneven force.

[0040] Working principle: When the cover plate 130 needs to be fixedly installed with the radiator 400, it is first necessary to push the cover plate 130 so that the support column 135 drives the brake plate 162 to enter the second movable groove 134. When the brake plate 162 moves in the second movable groove 134 to contact with the rotating wheel 169, it will drive the rotating wheel 169 to rotate. When the rotating wheel 169 rotates, it can respectively drive the first clamping plate 164 and the first clamping plate 165 to rotate. When the brake plate 162 moves downward to lose contact with the rotating wheel 169, the two sides of the brake plate 162 will contact the first clamping plate 164 and the first clamping plate 165 until the brake plate 162 moves to the slot notch. At this time, under the action of the second spring 168, the slot can clamp the brake plate 162, so that when the cover plate 130 is fixed to the radiator 400, the cover plate 130 will not be deformed due to uneven force.

[0041] See also Figure 11-14, which is an arrangement and installation structure of the light source 330, including a light source board 300, a plurality of mounting grooves 311 are opened at equal intervals on the top of the light source board 300, and a card slot 312 is symmetrically opened on the inner walls on both sides of the mounting groove 311, and a card seat 313 is provided in the mounting groove 311, and a matching movable groove 314 is opened on the top of the card seat 313, and a matching supporting column 315 is welded on the bottom inner wall of the matching movable groove 314, and the top of the matching supporting column 315 extends to the top of the light source board 300 and is welded with a limiting plate, and a movable plate 316 is slidably connected to the matching supporting column 315, and the bottom of both sides of the movable plate 316 is rotatably connected to a connecting rod 317, and the bottom ends of the two connecting rods 317 are rotatably connected to a connecting rod 318, and the bottom end of the connecting rod 318 When the locking plate 323 is unlocked, the locking plate 324 is unlocked, and the locking plate 325 is unlocked, so that the locking plate 325 can be unlocked. There are two slides 340 symmetrically slidably connected at the top, and the two slides 340 are respectively located on one side of the two brake grooves 321. The bottom side of the slide 340 extends to the top of the brake groove 321 and contacts the locking plate 323. Through the light source board 300, the mounting groove 311, the card slot 312, the card seat 313, the matching movable groove 314, the matching support column 315, the movable plate 316, the connecting rod 317, the connecting rod 318, the compression spring 319, the brake groove 321 and the brake hole 322, first move the card seat 313 downward in the mounting groove 311, and when the card seat 313 moves to the bottom of the mounting groove 311, the compression spring 319 can drive the card column 326 to move, so that the card column 326 enters After the latch 326 is moved to the mounting slot 312, the locking plate 323 is pushed, the brake column 325 is moved into the limiting slot, the latch 326 is clamped, and finally the slide 340 is moved to the top of the brake slot 321 so that the slide 340 limits the locking plate 11. The present invention is simple to operate. First, the mounting seat 313 is moved to the bottom of the mounting slot 311, so that the clamping column 326 moves into the brake mounting slot 2, and then the locking plate 323 is pushed so that the brake column 325 moves into the limiting slot, and finally the slide 340 is moved.By limiting the locking plate 323, the light source 330 can be mounted on the light source board and is easy to disassemble, which provides a certain convenience when replacing the light source 330.

[0042] In the present invention, compression springs 319 are welded on both sides of the matching support column 315, and the ends of the two compression springs 319 that are away from each other are respectively welded to the connecting rod 318. A tension spring 324 is sleeved on the brake column 325, and the top of the tension spring 324 is welded to the bottom of the locking plate 323, and the bottom of the tension spring 324 is welded to the inner wall of the brake hole 322. A sliding hole is opened on the top of the movable plate 316, and the matching support column 315 passes through the sliding hole and is tightly slidably connected to the sliding hole. A mounting through hole 328 is opened on the bottom inner wall of the mounting groove 311. Four light sources 330 are symmetrically fixedly installed at the bottom of the card mounting seat 313. The bottom of the light source 330 passes through the mounting hole 328 and extends to the bottom of the light source board 300. Hinges are welded at both ends of the connecting rod 317. One end of the two hinges is welded to the movable plate 316 and the connecting rod 318 respectively. Through the light source board 300, the mounting slot 311, the card mounting slot 312, the card mounting seat 313, the matching movable slot 314, the matching support column 315, the movable plate 316, the connecting rod 317, the connecting rod 318, the compression spring 319, the brake slot 321 and the brake hole 322 With cooperation, first move the card seat 313 downward in the installation slot 311. When the card seat 313 moves to the bottom of the installation slot 311, the compression spring 319 can drive the card post 326 to move, so that the card post 326 enters the card slot 312. Through the cooperation of the locking plate 323, the tension spring 324, the brake post 325, the card post 326, the moving hole 327, the installation through hole 328, the light source 330 and the slide plate 340, after the card post 326 moves to the card slot 312, the locking plate 323 is pushed to move the brake post 325 to the limit. The latch 326 is moved to the position where the latch 326 is engaged and the latch 325 is engaged, and the latch 326 is engaged to the latch 325. The latch 326 is engaged to the latch 325 and the latch 325 is engaged.

[0043] Working principle: When the light source 330 needs to be installed on the light source board, the movable plate 316 is first moved upward to drive the connecting rod 317 to rotate. When the connecting rod 317 rotates, the two connecting rods 318 are moved closer to each other, and then the two clamping columns 326 are moved closer to each other. Then the clamping seat 313 is moved downward in the installation groove 311. When the clamping seat 313 moves to the bottom of the installation groove 311, the compression spring 319 can drive the clamping column 326 to move, so that The locking plate 323 is pushed so that the locking plate 323 drives the brake column 325 to move, and the brake column 325 is moved into the limiting groove, and the locking plate 326 is clamped. Finally, the slide plate 340 is moved to the top of the brake groove 321, so that the slide plate 340 limits the locking plate 11, and the light source 330 can be clamped on the light source board, and it is easy to disassemble, which is convenient when replacing the light source 330.

[0044] Reference Figure 15-17The constant current source adopts a core-pulling structure, including a constant current source 500 and a constant current source housing 510 installed outside the constant current source 500. The bottom of the constant current source housing 510 is fixedly installed with a cover 130. The top and bottom of the constant current source 500 are fixedly provided with mounting plates 540. The mounting plate 540 at the bottom of the constant current source 500 contacts the top of the cover 130. Both sides of the mounting plate 540 at the bottom of the constant current source 500 are provided with cavities 502 opened on the constant current source housing 510. The mounting plate 540 is close to the cavity 502. A fixed blind groove 503 is provided on one side, and a positioning fixed block 504 is movably installed in the fixed blind groove 503, and the positioning fixed block 504 extends into the cavity 502 on one side close to the cavity 502, and a movable column 505 is slidably installed on the bottom inner wall of the cavity 502, and the top of one side of the movable column 505 is fixedly connected to the positioning fixed block 504, and a sliding hole 506 is provided on the movable column 505 below the positioning fixed block 504, and a horizontally arranged sliding rod body 507 is slidably connected in the sliding hole 506, and the sliding rod body 50 The two ends of 7 are respectively fixedly connected to the inner walls of both sides of the cavity 502, and a spring 508 is provided on the side of the movable column 505 away from the positioning and fixing block 504, and the spring 508 is sleeved on the sliding rod body 507. One end of the spring 508 is fixedly connected to the side of the movable column 505 away from the positioning and fixing block 504, and the other end of the spring 508 is fixedly connected to the inner wall of the side of the cavity 502 away from the mounting plate 540. A matching screw hole 509 is provided below the sliding hole 506 and is provided on the movable column 505. The internal thread 509 is connected to a screw rod 511, one end of the screw rod 511 is rotatably mounted on the inner wall of the cavity 502 close to the mounting plate 540, and the other end of the screw rod 511 is rotatably extended to the outside of the constant current source housing 510 and is fixedly mounted with a knob 512. The present invention has a simple structure and is easy to operate. The constant current source 500 is firmly fixed in the constant current source housing 510 and is not easy to shake after installation, thereby avoiding collision between the constant current source 500 and the inner wall of the constant current source housing 510 after installation, which is beneficial to preventing the constant current source 500 from being damaged due to collision.

[0045] The screw 511 is arranged in parallel with the sliding rod body 507. The constant current source 500 and the constant current source housing 510 are both rectangular structures. A sliding protrusion 515 is provided at the bottom of the movable column 505. A sliding groove 516 is provided on the bottom inner wall of the cavity 502, and the sliding protrusion 515 is slidably installed in the sliding groove 516. A first mounting hole is provided on the inner wall of the cavity 502 on the side close to the knob 512. A bearing ring 513 is fixedly sleeved in the first mounting hole, and the screw 511 passes through the inner ring of the bearing ring 513 and is fixedly connected to the inner ring of the bearing ring 513. The inner wall of the cavity 502 away from the knob 512 is provided with a first mounting hole. A second mounting hole is provided on the wall, and a bearing seat 514 is fixedly sleeved in the second mounting hole, and the end of the screw 511 away from the knob 512 is rotatably mounted on the bearing seat 514. A through hole 501 is provided on the inner wall of the cavity 502 on one side close to the fixed blind groove 503, and the positioning fixing block 504 slides through the through hole 501. The present invention has a simple structure and is easy to operate. The constant current source 500 is firmly installed and fixed in the constant current source housing 510 and is not easy to shake after installation, thereby avoiding collision between the constant current source 500 and the inner wall of the constant current source housing 510 after installation, which is beneficial to preventing the constant current source 500 from being damaged due to collision.

[0046] In the present invention, by setting the constant current source 500 in the constant current source housing 510, the assembly of the constant current source 500 is facilitated, the assembly efficiency is improved, and the constant current source 500 is firmly fixed in the constant current source housing 510. Since the constant current source 500 is fixedly connected to the mounting plate 540, the mounting plate 540 is positioned and fixed, so that the constant current source 500 is not easy to shake after being installed in the constant current source housing 510, thereby avoiding collision. The source 500 is set in the constant current source housing 510. When the mounting plate 540 at the bottom of the constant current source 500 contacts the top of the cover 130, the knob 512 is rotated, and the knob 512 drives the screw 511 to rotate on the bearing seat 514. Since the screw 511 is threadedly connected with the matching screw hole 509 on the movable column 505, the screw 511 drives the movable column 505 to move closer to the mounting plate 540 when it rotates. At the same time, the sliding protrusion 515 at the bottom of the movable column 505 is in contact with the screw hole 509 on the movable column 505. When the locking cam 506 is engaged, the locking cam 506 engages the locking cam 507, and the locking cam 508 engages the locking cam 509, which in turn engages the locking cam 509.

[0047] 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 constant current source core pulling structure, comprising a constant current source and a lamp housing installed outside the constant current source, wherein a cover is fixedly installed on the bottom of the lamp housing, and a mounting plate is fixedly provided on the top and bottom of the constant current source, the mounting plate located at the bottom of the constant current source contacts the top of the cover, and both sides of the mounting plate located at the bottom of the constant current source are provided with a cavity opened on the lamp housing, a fixed blind groove is opened on one side of the mounting plate close to the cavity, a positioning fixing block is movably installed in the fixed blind groove, and the side of the positioning fixing block close to the cavity extends into the cavity, a movable column is slidably installed on the bottom inner wall of the cavity, and the top of one side of the movable column is fixedly connected to the positioning fixing block, and a movable column is provided below the positioning fixing block. The cam is fixedly mounted on the support frame, and the two ends of the sliding rod are fixedly connected to the inner walls of the two sides of the cavity respectively. An elastic spring is provided on the side of the movable column away from the positioning and fixing block, and the elastic spring is sleeved on the sliding rod body. One end of the elastic spring is fixedly connected to the side of the movable column away from the positioning and fixing block, and the other end of the elastic spring is fixedly connected to the inner wall of the side of the cavity away from the mounting plate body. A matching screw hole is provided on the movable column below the sliding hole, and a screw is threadedly connected to the matching screw hole. One end of the screw is rotatably mounted on the inner wall of the side of the cavity close to the mounting plate body, and the other end of the screw is rotatably extended to the outside of the lamp housing and fixedly mounted with a knob; The screw rod is arranged in parallel with the sliding rod body, and the constant current source and the lamp housing are both rectangular structures; A sliding protrusion is provided at the bottom of the movable column, a sliding groove is provided on the inner wall of the bottom of the cavity, and the sliding protrusion is slidably installed in the sliding groove.

2. A constant current source core-pulling structure according to claim 1, characterized in that: A first mounting hole is provided on the inner wall of the cavity near the knob. A bearing ring is fixedly sleeved in the first mounting hole, and a screw rod passes through the inner ring of the bearing ring and is fixedly connected to the inner ring of the bearing ring.

3. A constant current source core-pulling structure according to claim 1, characterized in that: A second mounting hole is provided on the inner wall of the cavity away from the knob. A bearing seat is fixedly sleeved in the second mounting hole, and an end of the screw away from the knob is rotatably mounted on the bearing seat.

4. A constant current source core-pulling structure according to claim 1, characterized in that: A through hole is provided on the inner wall of one side of the cavity close to the fixed blind groove, and the positioning and fixing block slides through the through hole.

5. A lamp, characterized by: The constant current source core-pulling structure according to any one of claims 1 to 4 is applied.

6. The lamp according to claim 5, characterized in that: It also includes a breathable plate, a transparent cover, a first shell sealing ring, a reflector, a light source board, and a radiator. The light source board and the reflector are fixed on the radiator, and the light source board is placed in the light source and installed on the left side of the reflector. When the light source board is powered on, the light source emits light and the reflector reflects the light. The radiator is also sealed and assembled with the transparent cover through the first housing sealing ring, and the transparent cover is in a transparent state; The transparent cover is provided with a transparent mounting hole, and the transparent mounting hole is assembled with the air-permeable plate, and the air-permeable plate is provided with a plurality of penetrating air holes.

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