Showcase lamp fixing structure and showcase

Abstract

The invention relates to the technical field of showcases, in particular to a showcase lamp fixing structure and a shower.The showcase lamp fixing structure comprises a showcase body, an exhibit carrying table is arranged in the middle of the showcase body, and the showcase lamp fixing structure further comprises a spotlight, a height adjusting assembly, a centering assembly, a distance adjusting assembly and a slide rheostat; the height of the spotlight is adjusted through the height adjusting assembly, the centering assembly is installed in the display cavity and can operate along with the height adjusting assembly to enable the exhibits to be located in the middle of the exhibit carrying table, and the distance adjusting assembly is installed between the height adjusting assembly and the spotlight. The distance between the spotlight and the light-transmitting plate is adjusted through the distance adjusting assembly, the slide rheostat is installed in the equipment cavity and connected with the spotlight in series, and meanwhile when the distance adjusting assembly operates, the slide rheostat can be synchronously driven to adjust the resistance. According to the invention, the high-low position of the spotlight can be changed through the height adjusting assembly, so that the decoration requirements of various exhibits with different heights can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of display cabinets, and in particular to a display cabinet lamp fixing structure and a display cabinet. Background Art

[0002] A showcase is a cabinet for displaying exhibits. At present, the middle of a conventional showcase is generally equipped with a showcase light, which is mainly installed on the inner rear wall of the showcase. When lit, it will form a halo directly behind the exhibits, playing a good decorative role.

[0003] However, the lights on conventional display cabinets are currently installed in fixed positions. Under this structure, the display cabinet is only suitable for exhibits of a single height, otherwise its decorative effect will be greatly reduced, which makes the use of the entire display cabinet very limited and very inconvenient to use. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a display cabinet lamp fixing structure and a display cabinet.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a display cabinet lamp fixing structure and a display cabinet, comprising a display cabinet body, an exhibit platform is arranged in the middle of the display cabinet body, and also comprises a spotlight, a height adjustment component, a centering component, a distance adjustment component and a sliding rheostat. A light-transmitting plate is arranged in the middle of the display cabinet body, the light-transmitting plate divides the display cabinet body into a display cavity and an equipment cavity, and the side of the display cavity away from the light-transmitting plate is an open structure, the exhibit platform is installed in the display cavity, the spotlight is movably installed in the equipment cavity, and the light-emitting surface of the spotlight faces the light-transmitting plate, the height adjustment component is connected to the spotlight, and the height position adjustment of the spotlight is achieved through the height adjustment component, the centering component is installed in the display cavity, and the centering component can operate with the height adjustment component and place the exhibit in the middle of the exhibit platform, the distance adjustment component is installed between the height adjustment component and the spotlight, and the distance between the spotlight and the light-transmitting plate is adjusted through the distance adjustment component, the sliding rheostat is installed in the equipment cavity, and the sliding rheostat is connected in series with the spotlight, and when the distance adjustment component is operated, the sliding rheostat can be synchronously driven to adjust the resistance.

[0006] As a preferred technical solution of the present invention, the height adjustment assembly includes a first screw rod, a lifting link, a first motor, a reducer and a height measuring assembly. The first screw rod is rotatably installed in the equipment cavity, the lifting link is slidably installed in the equipment cavity up and down, and the lifting link is threadedly connected to the first screw rod, the first motor is fixedly installed in the equipment cavity, and the first motor is coaxially connected to the input end of the reducer, the output end of the reducer is coaxially connected to the first screw rod, and the height measuring assembly is installed in the display cavity and connected to the first motor control circuit.

[0007] As a preferred technical solution of the present invention, the height measuring component includes an infrared sensor, a connecting arm and a first through groove. The first through groove is opened on the light-transmitting plate, the connecting arm is slidably arranged in the first through groove, the infrared sensor is movably arranged in the display cavity, and the sensing probe of the infrared sensor is facing the middle of the exhibit carrier. At the same time, the infrared sensor is connected to the first motor control circuit, one end of the connecting arm is fixedly connected to the infrared sensor, and the other end is fixedly connected to the lifting connecting rod.

[0008] As a preferred technical solution of the present invention, the lifting connecting rod includes a long rod, a threaded sleeve, a connecting seat, a push rod, an electromagnetic coil, a compression spring and a push block. The threaded sleeve is threadedly connected to the first screw rod, the connecting seat is rotatably sleeved on the threaded sleeve, the long rod is fixedly installed on the side of the connecting seat, a through hole is opened on the side of the connecting seat close to the inner wall of the equipment cavity, the through hole penetrates to the surface of the threaded sleeve, the electromagnetic coil is fixedly installed in the through hole, and the electromagnetic coil is electrically connected to the infrared sensor, the push rod is slidably installed in the middle of the electromagnetic coil, the push block is fixedly installed at the end of the push rod and away from the threaded sleeve, and when the electromagnetic coil is energized, it can attract the push block to approach and drive the push rod to press the threaded sleeve tightly, the compression spring is installed between the push block and the electromagnetic coil, and when the electromagnetic coil is powered off, the compression spring can push the push block to slide out and press against the inner wall of the equipment cavity.

[0009] As a preferred technical solution of the present invention, the centering component includes a push plate, a shield plate and a driving component. The push plate is slidably arranged on the exhibit platform, and there are two push plates, which are symmetrically distributed in the display cavity. The driving component is connected between the first screw and the push plate, and the rotation of the first screw can drive the two push plates to move toward the middle of the exhibit platform at the same time through the driving component. The shield plate is fixedly installed on the exhibit platform, and when the push plate is close to the inner wall of the display cavity, the shield plate can cover the push plate and the driving component.

[0010] As a preferred technical solution of the present invention, the driving assembly includes a first rotating rod, a second rotating rod, a double-headed screw rod, a threaded seat, a sliding seat, a tension spring and a transmission assembly. The first rotating rod and the second rotating rod have the same structural size, and there are two groups of the first rotating rod and the second rotating rod, which are symmetrically distributed on both sides of the display chamber. At the same time, the first rotating rod and the second rotating rod on the same side are rotatably connected together. The double-headed screw rod is rotatably installed in the display chamber, and there are two double-headed screw rods, which are symmetrically distributed in the display chamber. The threaded seat is threadedly connected to the double-headed screw rod and is in sliding contact with the inner wall of the display chamber, and each double-headed screw rod is rotatably installed in the display chamber. There are two threaded seats on the screw rod, and the two threaded seats on the double-headed screw rod are symmetrically distributed. The sliding seat sliding sleeve is arranged on the double-headed screw rod, and each double-headed screw rod is symmetrically provided with two sliding seats. One end of the first rotating rod and the second rotating rod are respectively rotatably connected to the two sliding seat sides, and the other end is rotatably connected to the surface of the push plate. The tension spring is connected between the threaded seat and the sliding seat, and the threaded seat can pull the sliding seat to slide on the surface of the double-headed screw rod through the tension spring. The transmission assembly is connected between the two double-headed screw rods and the two first screw rods, and the double-headed screw rod and the first screw rod can maintain synchronous rotation through the transmission assembly.

[0011] As a preferred technical solution of the present invention, the transmission assembly includes a pulley and a synchronous belt, and the two double-headed screws and the two first screws are driven by the pulley and the synchronous belt.

[0012] As a preferred technical solution of the present invention, the distance adjustment component includes a guide groove, a second screw rod, a guide seat and a second motor. The guide groove is fixedly mounted on the lifting link, the second screw rod is rotatably mounted in the guide groove, and the second screw rod is vertically distributed to the lifting link, the guide seat is slidably mounted in the guide groove, and the guide seat is threadedly connected to the second screw rod, and the spotlight is fixedly mounted on the guide seat, the second motor is fixedly mounted on the side of the guide groove, and the output end of the second motor is coaxially connected to the second screw rod.

[0013] As a preferred technical solution of the present invention, the distance adjustment assembly further comprises a telescopic rod, one end of which is fixedly connected to the guide seat, and the other end of which is fixedly connected to the sliding piece of the sliding rheostat.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects: 1. During the entire use process, the spotlights inside the showcase can be adjusted in height through the height adjustment component, which can meet the decoration needs of exhibits of various heights and greatly expand the scope of application of the entire showcase.

[0015] 2. During use, when adjusting the height of the spotlight, the centering component can also be used to automatically place the exhibit in the middle of the exhibit carrier, thereby achieving automatic alignment of the exhibit position and further facilitating use.

[0016] 3. The halo size of the spotlight can be adjusted in real time through the distance adjustment component to meet the decoration needs of exhibits of various sizes, further expanding the scope of application of the entire display cabinet.

[0017] 4. When adjusting the size of the halo, the spotlight will also adjust the brightness synchronously to ensure that the brightness on the light-transmitting panel can remain constant, so that the decorative effect is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the split structure of the present invention; Figure 3 It is a schematic diagram of the second viewing angle of the three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the connecting socket of the present invention; Figure 6 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 8 For the present invention Figure 3 The enlarged structural diagram at C in the middle; Fig. 9 For the present invention Figure 4 The enlarged structural diagram at D in the middle; Fig.10 For the present invention Figure 5 The enlarged structural diagram at E in the middle; Fig.11 For the present invention Fig.10 Enlarged structural diagram at F in the middle.

[0019] Among them: 1. Main body; 2. Exhibit platform; 3. Spotlight; 4. Sliding rheostat; 5. Transparent plate; 6. Display cavity; 7. Equipment cavity; 8. First screw rod; 9. Lifting connecting rod; 901. Long rod; 902. Threaded sleeve; 903. Connecting seat; 904. Ejector rod; 905. Electromagnetic coil; 906. Compression spring; 907. Ejector block; 10. First motor; 11. Speed ​​reducer; 12. Infrared sensor; 13. Connecting arm; 14. First through slot; 15. Push plate; 16. Shield; 17. First rotating rod; 18. Second rotating rod; 19. Double-headed screw; 20. Threaded seat; 21. Sliding seat; 22. Pulley; 23. Synchronous belt; 24. Guide slot; 25. Second screw; 26. Guide seat; 27. Second motor; 28. Telescopic rod; 29. ​​Tension spring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0021] Example: Figure 1-11 As shown, a display cabinet lamp fixing structure and a display cabinet, comprising a display cabinet body 1, an exhibit carrier 2 is arranged in the middle of the display cabinet body 1, and also comprising a spotlight 3, a height adjustment component, a centering component, a distance adjustment component and a sliding rheostat 4, a light-transmitting plate 5 is arranged in the middle of the display cabinet body 1, and the light-transmitting plate 5 divides the display cabinet body 1 into a display cavity 6 and an equipment cavity 7, and the side of the display cavity 6 away from the light-transmitting plate 5 is an open structure, the exhibit carrier 2 is installed in the display cavity 6, the spotlight 3 is movably installed in the equipment cavity 7, and the light-emitting surface of the spotlight 3 faces the light-transmitting plate 5, and the height adjustment component 4 is a height adjustment component ... The height adjustment component is connected to the spotlight 3, and the height adjustment component is used to adjust the height of the spotlight 3. The centering component is installed in the display cavity 6, and the centering component can operate with the height adjustment component and place the exhibit in the middle of the exhibit carrier 2. The distance adjustment component is installed between the height adjustment component and the spotlight 3, and the distance between the spotlight 3 and the light-transmitting plate 5 is adjusted by the distance adjustment component. The sliding rheostat 4 is installed in the equipment cavity 7, and the sliding rheostat 4 is connected in series with the spotlight 3. When the distance adjustment component is in operation, the sliding rheostat 4 can be synchronously driven to adjust the resistance.

[0022] When in use, it is only necessary to place the exhibits on the exhibit carrier 2, and then the height of the spotlight 3 can be adjusted to match the exhibits through the height adjustment component. Moreover, during the operation of the height adjustment component, it can also drive the centering component to automatically center the exhibits on the exhibit carrier 2 to facilitate the centering of the exhibits. At the same time, when the exhibits are large in size and the halo of the spotlight 3 is too small and poorly decorated directly behind the exhibits, the distance adjustment component can be used to adjust the distance between the spotlight 3 and the light-transmitting plate 5, thereby realizing the change of the halo size. In this process, the sliding rheostat 4 can also be driven to change its resistance, thereby reducing the brightness of the spotlight 3 when it is close to the light-transmitting plate 5, and increasing the brightness of the spotlight 3 when it is far away from the light-transmitting plate 5, so that the brightness of the halo on the light-transmitting plate 5 is constant.

[0023] like Figure 4 , Fig. 9 As shown, the height adjustment assembly includes a first screw rod 8, a lifting link 9, a first motor 10, a reducer 11 and a height measuring assembly. The first screw rod 8 is rotatably installed in the equipment cavity 7, the lifting link 9 is slidably installed in the equipment cavity 7, and the lifting link 9 is threadedly connected to the first screw rod 8. The first motor 10 is fixedly installed in the equipment cavity 7, and the first motor 10 is coaxially connected to the input end of the reducer 11, and the output end of the reducer 11 is coaxially connected to the first screw rod 8. The height measuring assembly is installed in the display cavity 6 and is connected to the control circuit of the first motor 10.

[0024] In this way, it is only necessary to start the first motor 10, which will drive the first screw rod 8 to rotate through the reducer 11, and the first screw rod 8 will drive the lifting connecting rod 9 to move upward, thereby driving the distance adjustment component and the spotlight 3 to move synchronously to achieve the height adjustment of the spotlight 3.

[0025] like Figure 4 , Fig. 9 As shown, the height measuring component includes an infrared sensor 12, a connecting arm 13 and a first through slot 14. The first through slot 14 is opened on the light-transmitting plate 5. The connecting arm 13 is slidably arranged in the first through slot 14. The infrared sensor 12 is movably arranged in the display cavity 6, and the sensing probe of the infrared sensor 12 faces the middle of the exhibit platform 2. At the same time, the infrared sensor 12 is connected to the control circuit of the first motor 10. One end of the connecting arm 13 is fixedly connected to the infrared sensor 12, and the other end is fixedly connected to the lifting connecting rod 9.

[0026] In this way, when the lifting link 9 moves, the infrared sensor 12 will be driven to move synchronously through the connecting arm 13. In this way, after the exhibit is placed on the exhibit carrier 2, the exhibit will cover the infrared sensor 12. After the lifting link 9 is lifted to a certain position, the infrared sensor 12 will no longer be blocked by the exhibit and will be triggered to drive the first motor 10 to move.

[0027] like Figure 5 , Fig.10 and Fig.11 As shown, the lifting connecting rod 9 includes a long rod 901, a threaded sleeve 902, a connecting seat 903, a push rod 904, an electromagnetic coil 905, a compression spring 906 and a push block 907. The threaded sleeve 902 is threadedly connected to the first screw rod 8, and the connecting seat 903 is rotatably sleeved on the threaded sleeve 902. The long rod 901 is fixedly installed on the side of the connecting seat 903. A through hole is opened on one side of the connecting seat 903 close to the inner wall of the equipment cavity 7, and the through hole penetrates to the surface of the threaded sleeve 902. The electromagnetic coil 905 is fixedly installed in the through hole, and the electromagnetic The coil 905 is electrically connected to the infrared sensor 12, the push rod 904 is slidably installed in the middle of the electromagnetic coil 905, and the push block 907 is fixedly installed at the end of the push rod 904 and away from the threaded sleeve 902. At the same time, when the electromagnetic coil 905 is energized, it can attract the push block 907 to approach and drive the push rod 904 to press against the threaded sleeve 902. The compression spring 906 is installed between the push block 907 and the electromagnetic coil 905, and when the electromagnetic coil 905 is powered off, the compression spring 906 can push the push block 907 to slide out and press against the inner wall of the equipment cavity 7.

[0028] In this way, after the infrared sensor 12 is triggered, the power supply of the electromagnetic coil 905 can be disconnected, so that the top rod 904 can slide out and drive the top block 907 to press against the inner wall of the equipment cavity 7, thereby achieving the fixation of the lifting connecting rod 9. In this way, the rotation of the first screw rod 8 will only drive the threaded sleeve 902 to idle in the middle of the connecting seat 903, and will not drive the spotlight 3 to move.

[0029] like Figure 1 and Figure 2 As shown, the centering assembly includes a push plate 15, a shield plate 16 and a driving assembly. The push plate 15 is slidably set on the exhibit platform 2, and there are two push plates 15, which are symmetrically distributed in the display cavity 6. The driving assembly is connected between the first screw rod 8 and the push plate 15, and the rotation of the first screw rod 8 can drive the two push plates 15 to move toward the middle of the exhibit platform 2 at the same time through the driving assembly. The shield plate 16 is fixedly installed on the exhibit platform 2, and when the push plate 15 is close to the inner wall of the display cavity 6, the shield plate 16 can cover the push plate 15 and the driving assembly.

[0030] In this way, the rotation of the first screw rod 8 will drive the driving assembly to operate, and the driving assembly will drive the two push plates 15 to synchronously move toward the middle of the exhibit platform 2, thereby pushing the exhibit to move and finally be located in the middle of the exhibit platform 2.

[0031] It should be noted that a second through slot is formed on the surface of the push plate 15 and faces the infrared sensor 12 , so that the light waves of the infrared sensor 12 can pass through the second through slot and reach the surface of the exhibit. In this way, the infrared sensor 12 can conveniently sense and measure the height of the exhibit.

[0032] like Figure 1 , Figure 2 and Figure 6As shown, the driving assembly includes a first rotating rod 17, a second rotating rod 18, a double-headed screw rod 19, a threaded seat 20, a sliding seat 21, a tension spring 29 and a transmission assembly. The first rotating rod 17 and the second rotating rod 18 have the same structural size, and there are two groups of the first rotating rod 17 and the second rotating rod 18, which are symmetrically distributed on both sides of the display chamber 6. At the same time, the first rotating rod 17 and the second rotating rod 18 on the same side are rotatably connected together. The double-headed screw rod 19 is rotatably installed in the display chamber 6, and there are two double-headed screw rods 19, which are symmetrically distributed in the display chamber 6. The threaded seat 20 is threadedly connected to the double-headed screw rod 19 and slides in contact with the inner wall of the display chamber 6, and each double-headed screw rod 19 has two threads The first and second rotating rods 17 and 18 are symmetrically connected to the sides of the two sliding seats 21, and the other ends are rotatably connected to the surface of the push plate 15. The tension spring 29 is connected between the threaded seat 20 and the sliding seat 21, and the threaded seat 20 can pull the sliding seat 21 to slide on the surface of the double-headed screw 19 through the tension spring 29. The transmission assembly is connected between the two double-headed screws 19 and the two first screws 8, and the double-headed screw 19 and the first screw 8 can keep synchronous rotation through the transmission assembly.

[0033] In this way, the rotation of the first screw 8 will drive the double-headed screw 19 to rotate through the transmission assembly, and the double-headed screw 19 will drive the two threaded seats 20 on its surface to synchronously move toward the middle of the double-headed screw 19. The movement of the threaded seat 20 will drive the slide 21 to move synchronously through the tension spring 29, and the slide 21 will drive the first rotating rod 17 and the second rotating rod 18 to rotate, which will push the push plate 15 to move toward the middle of the exhibit carrier 2.

[0034] Furthermore, if the exhibit is large, causing the push plate 15 to be in close contact with the exhibit, but the infrared sensor 12 has not yet fully measured the height of the exhibit, at this time, the first screw 8 will keep rotating in the positive direction, so the double-headed screw 19 will also rotate. At this time, the threaded seat 20 will pull the tension spring 29 to deform to ensure that the infrared sensor 12 can move normally, thereby ensuring that the entire structure can operate stably. like Figure 7 As shown, the transmission assembly includes a pulley 22 and a synchronous belt 23 , and the two double-headed screws 19 and the two first screws 8 are driven by the pulley 22 and the synchronous belt 23 .

[0035] like Figure 3 and Figure 8As shown, the distance adjustment component includes a guide groove 24, a second screw rod 25, a guide seat 26 and a second motor 27. The guide groove 24 is fixedly mounted on the lifting link 9, the second screw rod 25 is rotatably mounted in the guide groove 24, and the second screw rod 25 is vertically distributed with the lifting link 9, the guide seat 26 is slidably mounted in the guide groove 24, and the guide seat 26 is threadedly connected to the second screw rod 25, and the spotlight 3 is fixedly mounted on the guide seat 26, the second motor 27 is fixedly mounted on the side of the guide groove 24, and the output end of the second motor 27 is coaxially connected to the second screw rod 25.

[0036] In this way, it is only necessary to start the second motor 27 , which will drive the second screw 25 to rotate, thereby driving the guide seat 26 to move, and the guide seat 26 will drive the spotlight 3 to move synchronously, thereby changing the size of the halo of the spotlight 3 on the light-transmitting plate 5 .

[0037] The distance adjustment assembly further comprises a telescopic rod 28 , one end of which is fixedly connected to the guide seat 26 , and the other end of which is fixedly connected to the sliding piece of the sliding rheostat 4 .

[0038] In this way, when the spotlight 3 moves, the sliding piece of the sliding rheostat 4 can be synchronously driven to move by the telescopic rod 28 , thereby changing the series resistance of the spotlight 3 and realizing the brightness adjustment of the spotlight 3 .

[0039] Therefore, the complete usage process is to first place the entire display cabinet at the designated position, and then place the exhibits to be displayed on the exhibit carrier 2. At this time, the exhibits will cover the infrared sensor 12. At this time, the first motor 10 can be started, and the first motor 10 will drive the first screw rod 8 to rotate through the reducer 11. The first screw rod 8 will drive the lifting connecting rod 9 to move upward, and then drive the guide groove 24 to move. The guide groove 24 will drive the spotlight 3 on the guide seat 26 to move synchronously. In this process, the lifting connecting rod 9 will also drive the infrared sensor 12 to rise synchronously through the connecting arm 13. When the height of the infrared sensor 12 exceeds the height of the exhibit, the infrared sensor 12 will move upward. The external sensor 12 will be triggered, thereby causing the first motor 10 to reverse. Prior to this, the power supply of the electromagnetic coil 905 will be synchronously disconnected, so that the top rod 904 will drive the top block 907 to pop out and press against the inner wall of the equipment cavity 7 under the action of the compression spring 906. In this way, the lifting connecting rod 9 will be fixed at a specified height, thereby fixing the height of the spotlight 3. It should be noted that the height difference between the spotlight 3 and the infrared sensor 12 is fixed, and after the infrared sensor 12 is triggered, the spotlight 3 can be aimed at the area directly behind the exhibit. In this way, the spotlight 3 will form a halo on the light-transmitting plate 5 and make it located directly behind the exhibit to play a decorative role.

[0040] Among them, the first screw rod 8 will also drive the double-headed screw rod 19 to rotate through the pulley 22 and the synchronous belt 23, and the double-headed screw rod 19 will drive the two threaded seats 20 on its surface to synchronously move toward the middle of the double-headed screw rod 19. The movement of the threaded seat 20 will drive the slide 21 to move synchronously through the tension spring 29, and the slide 21 will drive the first rotating rod 17 and the second rotating rod 18 to rotate, which will push the push plate 15 to move toward the middle of the exhibit platform 2. Due to the synchronous action of the two push plates 15, the exhibit will be in the middle of the exhibit platform 2. If the exhibit is large, the push plate 15 is already close to the exhibit, but the infrared sensor 12 has not fully measured the height of the exhibit. At this time, the first screw rod 8 will keep rotating in the forward direction, so the double-headed screw rod 19 will also rotate. At this time, the threaded seat 20 will pull the tension spring 29 to deform to ensure that the infrared sensor 12 can move normally, thereby ensuring that the entire structure can operate stably.

[0041] After the infrared sensor 12 detects the height of the exhibit and is triggered, the first motor 10 will be reversed. At this time, the first screw rod 8 and the double-headed screw rod 19 will both be reversed. However, since the top rod 904 is separated from the threaded sleeve 902, the reversal of the first screw rod 8 will only drive the threaded sleeve 902 to idle in the middle of the connecting seat 903, and the reversal of the double-headed screw rod 19 will drive the push plate 15 to retract until it is covered by the shielding plate 16. At this time, the first motor 10 will stop. In this way, the position installation of the lamp on the entire display cabinet and the fixation of the exhibits are completed.

[0042] If the size of the exhibit directly behind is too small, resulting in the halo of the spotlight 3 on the light-transmitting plate 5 not matching, the second motor 27 can also be started, and the second motor 27 will drive the second screw 25 to rotate, thereby driving the guide seat 26 to move, and the guide seat 26 will drive the spotlight 3 to move synchronously, thereby changing the size of the halo of the spotlight 3 on the light-transmitting plate 5. In this process, when the spotlight 3 is away from the light-transmitting plate 5, the sliding piece of the sliding rheostat 4 will be synchronously driven to move through the telescopic rod 28, thereby reducing the resistance, increasing the power of the spotlight 3, and thus improving the brightness of the spotlight 3 to ensure that the halo brightness on the light-transmitting plate 5 is sufficient. It should be noted that the light-transmitting plate 5 is a non-transparent light-transmitting material.

[0043] In summary, during the entire use process, the spotlight 3 inside the showcase can be changed in height through the height adjustment component, which can meet the decoration requirements for exhibits of various heights and greatly expand the application scope of the entire showcase.

[0044] At the same time, during use, when the height of the spotlight 3 is adjusted, the centering component can be used to automatically place the exhibit in the middle of the exhibit carrier 2, thereby achieving automatic alignment of the exhibit position and further facilitating use.

[0045] Moreover, the halo size of the spotlight 3 can be adjusted in real time through the distance adjustment component, thereby meeting the decoration requirements of exhibits of various sizes, further expanding the application scope of the entire display cabinet.

[0046] In addition, when adjusting the size of the halo, the spotlight 3 will also adjust the brightness synchronously, thereby ensuring that the brightness on the light-transmitting plate 5 can be kept constant, so that the decorative effect is effectively guaranteed.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A display cabinet light fixing structure and a display cabinet, comprising a display cabinet body (1), wherein an exhibit carrier (2) is provided in the middle of the display cabinet body (1), characterized in that: The display cabinet further comprises a spotlight (3), a height adjustment component, a centering component, a distance adjustment component and a sliding rheostat (4); a light-transmitting plate (5) is provided in the middle of the main body (1) of the display cabinet; the light-transmitting plate (5) divides the main body (1) of the display cabinet into a display cavity (6) and an equipment cavity (7); a side of the display cavity (6) away from the light-transmitting plate (5) is an open structure; an exhibit carrier (2) is installed in the display cavity (6); a spotlight (3) is movably installed in the equipment cavity (7), and a light-emitting surface of the spotlight (3) faces the light-transmitting plate (5); the height adjustment component is connected to the spotlight (3), and the light-emitting surface of the spotlight (3) faces the light-transmitting plate (5); the height adjustment component is connected to the spotlight (3), and the light-transmitting plate (5) is connected to the display cavity (6). The height position of the spotlight (3) is adjusted by a height adjustment component. The centering component is installed in the display cavity (6). The centering component rotates with the height adjustment component and places the exhibit in the middle of the exhibit carrier (2). The distance adjustment component is installed between the height adjustment component and the spotlight (3). The distance adjustment component is used to adjust the distance between the spotlight (3) and the light-transmitting plate (5). The sliding rheostat (4) is installed in the equipment cavity (7). The sliding rheostat (4) is connected in series with the spotlight (3). When the distance adjustment component rotates, the sliding rheostat (4) is synchronously driven to adjust the resistance.

2. The display cabinet lamp fixing structure and display cabinet according to claim 1, characterized in that: The height adjustment assembly comprises a first screw rod (8), a lifting connecting rod (9), a first motor (10), a reducer (11) and a height measuring assembly. The first screw rod (8) is rotatably mounted in the equipment cavity (7). The lifting connecting rod (9) is slidably mounted in the equipment cavity (7). The lifting connecting rod (9) is threadedly connected to the first screw rod (8). The first motor (10) is fixedly mounted in the equipment cavity (7). The first motor (10) is coaxially connected to the input end of the reducer (11). The output end of the reducer (11) is coaxially connected to the first screw rod (8). The height measuring assembly is mounted in the display cavity (6) and is connected to the control circuit of the first motor (10).

3. The display cabinet lamp fixing structure and display cabinet according to claim 2, characterized in that: The height measuring component comprises an infrared sensor (12), a connecting arm (13) and a first through slot (14); the first through slot (14) is formed on the light-transmitting plate (5); the connecting arm (13) is slidably arranged in the first through slot (14); the infrared sensor (12) is movably arranged in the display cavity (6); and the sensing probe of the infrared sensor (12) faces the middle of the exhibit carrier (2); the infrared sensor (12) is connected to a control circuit of a first motor (10); one end of the connecting arm (13) is fixedly connected to the infrared sensor (12); and the other end is fixedly connected to the lifting connecting rod (9).

4. The display cabinet lamp fixing structure and display cabinet according to claim 3, characterized in that: The lifting connecting rod (9) comprises a long rod (901), a threaded sleeve (902), a connecting seat (903), a push rod (904), an electromagnetic coil (905), a compression spring (906) and a push block (907); the threaded sleeve (902) is threadedly connected to the first screw rod (8); the connecting seat (903) is rotatably sleeved on the threaded sleeve (902); the long rod (901) is fixedly mounted on the side of the connecting seat (903); a through hole is formed on a side of the connecting seat (903) close to the inner wall of the equipment cavity (7); the through hole penetrates to the surface of the threaded sleeve (902); the electromagnetic coil (905) is fixedly mounted in the through hole; and the electromagnetic coil (905) is fixedly mounted in the through hole. The coil (905) is electrically connected to the infrared sensor (12), the push rod (904) is slidably installed in the middle of the electromagnetic coil (905), the push block (907) is fixedly installed at the end of the push rod (904) and away from the threaded sleeve (902), and when the electromagnetic coil (905) is energized, it can attract the push block (907) to approach and drive the push rod (904) to press against the threaded sleeve (902), the compression spring (906) is installed between the push block (907) and the electromagnetic coil (905), and when the electromagnetic coil (905) is powered off, the compression spring (906) will push the push block (907) to slide out and press against the inner wall of the equipment cavity (7).

5. A display cabinet lamp fixing structure and a display cabinet according to any one of claims 2 to 4, characterized in that: The centering assembly comprises a push plate (15), a shielding plate (16) and a driving assembly. The push plate (15) is slidably arranged on the exhibit platform (2). There are two push plates (15) and they are symmetrically distributed in the display cavity (6). The driving assembly is connected between the first screw rod (8) and the push plate (15). The first screw rod (8) rotates to drive the two push plates (15) to move toward the middle of the exhibit platform (2) at the same time through the driving assembly. The shielding plate (16) is fixedly mounted on the exhibit platform (2). When the push plate (15) is close to the inner wall of the display cavity (6), the shielding plate (16) can cover the push plate (15) and the driving assembly.

6. The display cabinet lamp fixing structure and display cabinet according to claim 5, characterized in that: The driving assembly comprises a first rotating rod (17), a second rotating rod (18), a double-headed screw rod (19), a threaded seat (20), a sliding seat (21), a tension spring (29) and a transmission assembly. The first rotating rod (17) and the second rotating rod (18) have the same structural dimensions, and there are two sets of the first rotating rod (17) and the second rotating rod (18), which are symmetrically distributed on both sides of the display chamber (6). At the same time, the first rotating rod (17) and the second rotating rod (18) on the same side are rotatably connected together in the middle. The double-headed screw rod (19) is rotatably installed in the display chamber (6), and there are two double-headed screw rods (19) which are symmetrically distributed in the display chamber (6). The threaded seat (20) is threadedly connected to the double-headed screw rod (19) and is in sliding contact with the inner wall of the display chamber (6), and each double-headed screw rod (19) has two threaded seats. (20), and at the same time, the two threaded seats (20) on the double-headed screw (19) are symmetrically distributed, and the slide seat (21) is slidably sleeved on the double-headed screw (19), and each double-headed screw (19) is symmetrically sleeved with two slide seats (21), one end of the first rotating rod (17) and the second rotating rod (18) are respectively rotatably connected to the side surfaces of the two slide seats (21), and the other end is rotatably connected to the surface of the push plate (15), the tension spring (29) is connected between the threaded seat (20) and the slide seat (21), and the threaded seat (20) can pull the slide seat (21) to slide on the surface of the double-headed screw (19) through the tension spring (29), the transmission component is connected between the two double-headed screws (19) and the two first screws (8), and the double-headed screw (19) and the first screw (8) can keep synchronous rotation through the transmission component.

7. The display cabinet lamp fixing structure and display cabinet according to claim 6, characterized in that: The transmission assembly comprises a pulley (22) and a synchronous belt (23), and the two double-headed screws (19) and the two first screws (8) are driven via the pulley (22) and the synchronous belt (23).

8. The display cabinet lamp fixing structure and display cabinet according to claim 2, characterized in that: The distance adjustment assembly comprises a guide groove (24), a second screw rod (25), a guide seat (26) and a second motor (27); the guide groove (24) is fixedly mounted on the lifting connecting rod (9); the second screw rod (25) is rotatably mounted in the guide groove (24); the second screw rod (25) and the lifting connecting rod (9) are vertically distributed; the guide seat (26) is slidably mounted in the guide groove (24); the guide seat (26) and the second screw rod (25) are threadedly connected; the spotlight (3) is fixedly mounted on the guide seat (26); the second motor (27) is fixedly mounted on the side of the guide groove (24); and the output end of the second motor (27) is coaxially connected to the second screw rod (25).

9. The display cabinet lamp fixing structure and display cabinet according to claim 8, characterized in that: The distance adjustment component also includes a telescopic rod (28), one end of the telescopic rod (28) being fixedly connected to the guide seat (26), and the other end of the telescopic rod (28) being fixedly connected to the sliding piece of the sliding rheostat (4).

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