A quick assembly device for the back cover and housing of a reading lamp

Abstract

This utility model discloses a quick assembly device for the back cover and lamp housing of a reading lamp, relating to the field of lighting manufacturing technology. It aims to solve the technical problem that current reading lamp back cover and lamp housing assembly devices are not convenient for quickly and stably assembling and disassembling the back cover and lamp housing. The device includes a lamp back cover and a lamp housing. This utility model, through its designed insertion hole and quick connecting rod, allows for direct rotation of the quick connecting rod during assembly. The protrusion on the quick connecting rod aligns with the opening groove of the insertion hole. The quick connecting rod is then pushed into the insertion hole until the protrusion extends into the second circular hole of the insertion hole. At this point, the quick connecting rod is fully inserted into the insertion hole. Rotating the quick connecting rod 180° causes the protrusion to directly engage with the edge of the second circular hole, thus fixing the quick connecting rod to the insertion hole and achieving the fixed installation of the lamp back cover and lamp housing.

Description

Technical Field

[0001] This utility model relates to the field of lighting manufacturing technology, and more specifically, to a quick assembly device for the back cover and housing of a reading lamp. Background Technology

[0002] Reading lights are one of the most common lighting devices in modern life, widely used in reading, studying, and office work. Depending on different usage needs and scenarios, there are various types of reading lights. Reading lights are mainly assembled by combining the back cover and the lamp housing to form an overall shell, and then the lighting components are located inside the shell, thus forming an overall structure. The back cover and the lamp housing are usually connected and installed using specific assembly devices.

[0003] Existing reading lamp back cover and lamp housing assembly devices typically use snap-fit ​​connections or screw fixation. While snap-fit ​​connections are convenient to operate, they have poor connection stability and are prone to loosening after prolonged use. Moreover, disassembly requires prying and pulling out the screws, which is quite troublesome. Screw fixation provides a secure connection, but the assembly process is cumbersome, requiring tools to tighten each screw individually, resulting in low assembly efficiency and increased production costs. Therefore, we propose a quick assembly device for reading lamp back cover and lamp housing. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a quick assembly device for the back cover and lamp housing of a reading lamp, so as to solve the technical problem that the current assembly device for the back cover and lamp housing of a reading lamp is not convenient for quickly and stably assembling and disassembling the back cover and lamp housing of the reading lamp.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a quick assembly device for a reading lamp back cover and a lamp housing, comprising a lamp back cover and a lamp housing, wherein the lamp back cover has a fifth circular hole arranged at each of its four corners, a quick connecting rod is inserted into the fifth circular hole, a protrusion is arranged at the end of the quick connecting rod facing the lamp housing, and the lamp housing has insertion holes at each of its four corners corresponding to the quick connecting rod, the insertion holes including a first circular hole, a second circular hole and an opening groove, the first circular hole and the second circular hole being arranged sequentially from the outside to the inside, and the opening groove communicating with the second circular hole; A third circular hole is arranged on the side of the second circular hole facing away from the first circular hole. A first spring is arranged in the third circular hole and extends into the first circular hole. A fourth circular hole is opened on the side of the protrusion facing away from the lamp housing. A circular block is elastically arranged in the fourth circular hole. A limiting ball is rolled on the surface of the circular block. A semi-circular hole corresponding to the limiting ball is arranged in the second circular hole.

[0006] Preferably, the fifth circular hole, the quick-connecting rod, the first circular hole, and the third circular hole have the same diameter, the diameter of the second circular hole is larger than the diameter of the quick-connecting rod, and the cross-sectional dimensions of the opening groove are the same as those of the opening groove.

[0007] Preferably, a limiting rod is arranged inside the third circular hole, and the first spring is sleeved on the limiting rod. The end of the quick connecting rod facing the lamp housing is provided with a limiting hole corresponding to the limiting rod.

[0008] Preferably, a second spring is arranged inside the fourth circular hole, and symmetrical limit grooves are formed on the inner wall of the fourth circular hole. Limit blocks are slidably arranged in the limit grooves, and the limit blocks are connected to the circular blocks.

[0009] Preferably, the first spring has a top ring at one end facing the quick-connecting rod, and a number of equidistant balls are rolled around the surface of the top ring. The quick-connecting rod has a mating groove corresponding to the balls at one end facing the lamp housing.

[0010] Preferably, the inner wall of the fifth circular hole is provided with a semi-circular groove, and a positioning block is provided on the quick connecting rod, the positioning block being located inside the semi-circular groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through its designed insertion hole and quick-connecting rod, allows for easy assembly and installation of the lamp back cover and lamp housing. Simply twist the quick-connecting rod to align the protrusion on the quick-connecting rod with the opening groove of the insertion hole. Then, push the quick-connecting rod into the insertion hole until the protrusion extends into the second circular hole. At this point, the quick-connecting rod is fully inserted into the insertion hole. Rotating the quick-connecting rod 180° causes the protrusion to lock directly into the edge of the second circular hole, thus securing the quick-connecting rod to the insertion hole. The lamp back cover and lamp housing are now fixed in place. Conversely, by rotating the quick-connecting rod 180° again, the quick-connecting rod can be pulled out from the insertion hole, thus separating the lamp back cover and lamp housing. This structure allows for quick assembly and disassembly of the lamp back cover and lamp housing, and it is stable and not prone to loosening. It solves the technical problem that current reading lamp back cover and lamp housing assembly devices are not convenient for quick and stable assembly and disassembly of the reading lamp back cover and lamp housing. Therefore, this utility model has the advantages of fast assembly and disassembly speed and good stability of the lamp back cover and lamp housing.

[0012] 2. This utility model also includes a first spring arranged in the third circular hole, a circular block elastically arranged on the protrusion, and a semi-circular hole arranged in the second circular hole. Therefore, when the quick connecting rod is inserted into the mating hole, it will compress the first spring. When the quick connecting rod is fully inserted and rotated 180°, the first spring will apply a pushing force to the quick connecting rod, making the force of the protrusion against the second circular hole greater. This can effectively prevent the quick connecting rod from rotating and falling off, further ensuring the stability of the quick connecting rod inserted and fixed inside the mating hole. Moreover, after the quick connecting rod rotates 180°, the limiting ball on the circular block will be stuck in the semi-circular hole, which can also further ensure the stability of the quick connecting rod inserted and fixed inside the mating hole.

[0013] 3. The first spring end of this utility model is provided with a top ring, and several sets of balls are rolled around the top ring. The corresponding end of the quick connecting rod is provided with a circular mating groove that matches the balls. At this time, the first spring contacts the mating groove of the quick connecting rod through the balls on the top ring, realizing rolling friction between the two, which can greatly reduce the friction force between the two. Therefore, while ensuring that the first spring can keep the pushing force on the quick connecting rod unchanged, the quick connecting rod can be rotated more easily, making it convenient for personnel to rotate the quick connecting rod and fix it with the insertion hole. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first overall structure of the present invention; Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the second overall structure of the present invention; Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the fifth circular hole structure of this utility model; Figure 6 This is a schematic diagram of the quick-connect rod structure of this utility model; Figure 7 For the present utility model Figure 6 Enlarged structural diagram at point C.

[0015] Explanation of the labels in the diagram: 1. Lamp back cover; 101. Fifth round hole; 102. Semi-circular groove; 2. Lamp housing; 3. Insertion hole; 301. First round hole; 302. Second round hole; 303. Third round hole; 304. Opening groove; 305. First spring; 306. Top ring; 307. Ball bearing; 308. Limiting rod; 309. Semi-circular hole; 4. Quick connecting rod; 401. Protrusion; 402. Fourth round hole; 403. Circular block; 404. Limiting ball; 405. Second spring; 406. Limiting groove; 407. Limiting block; 408. Positioning block; 409. Mating groove; 4010. Limiting hole. Detailed Implementation

[0016] like Figures 1 to 7 As shown, this utility model relates to a quick assembly device for a reading lamp back cover and a lamp housing, including a lamp back cover 1 and a lamp housing 2. The lamp back cover 1 has a fifth circular hole 101 arranged at each of its four corners. A quick connecting rod 4 is inserted into the fifth circular hole 101. A protrusion 401 is arranged at the end of the quick connecting rod 4 facing the lamp housing 2. The lamp housing 2 has insertion holes 3 at each of its four corners corresponding to the quick connecting rod 4. The insertion holes 3 include a first circular hole 301, a second circular hole 302, and an opening groove 304. The first circular hole 301 and the second circular hole 302 are arranged sequentially from the outside to the inside. The opening groove 304 communicates with the second circular hole 302. The fifth circular hole 101, the quick connecting rod 4, the first circular hole 301, and the third circular hole 303 have the same diameter. The diameter of the second circular hole 302 is larger than the diameter of the quick connecting rod 4. The cross-sectional dimensions of the opening groove 304 are the same as those of the lamp housing 2. When assembling and installing the lamp back cover 1 and the lamp housing 2, directly turn the quick-connecting rod 4 to align the protrusion 401 on the quick-connecting rod 4 with the opening groove 304 of the insertion hole 3. Then push the quick-connecting rod 4 into the insertion hole 3 until the protrusion 401 of the quick-connecting rod 4 extends into the second round hole 302. At this time, the quick-connecting rod 4 is also fully inserted into the insertion hole 3. Then rotate the quick-connecting rod 4 180°. At this time, the protrusion 401 will directly lock onto the side of the second round hole 302. At this time, the quick-connecting rod 4 is fixedly connected to the insertion hole 3, thus achieving the fixed installation of the lamp back cover 1 and the lamp housing 2. Conversely, by rotating the quick-connecting rod 4 180° again, the quick-connecting rod 4 can be pulled out from the insertion hole 3, thus separating the lamp back cover 1 and the lamp housing 2. With this structure, the lamp back cover 1 and the lamp housing 2 can be quickly disassembled and assembled, and the stability is good, and it is not easy to loosen.

[0017] In an embodiment of this utility model, a third circular hole 303 is arranged on the side of the second circular hole 302 facing away from the first circular hole 301. A first spring 305 is arranged in the third circular hole 303 and extends into the first circular hole 301. A fourth circular hole 402 is opened on the side of the protrusion 401 facing away from the lamp housing 2. A circular block 403 is elastically arranged in the fourth circular hole 402. A limiting ball 404 is rolled on the surface of the circular block 403. A semi-circular hole 309 corresponding to the limiting ball 404 is arranged in the second circular hole 302. When the quick-connecting rod 4 is inserted into the mating hole 3, it will compress the first spring 305, causing the first spring 305 to be in a compressed state. When the quick-connecting rod 4 is fully inserted and rotated 180°, the first spring 305 will apply a pushing force to the quick-connecting rod 4, making the protrusion 401 press against the second circular hole 302 with greater force. This can effectively prevent the quick-connecting rod 4 from rotating and falling off, further ensuring the stability of the quick-connecting rod 4 inserted and fixed inside the mating hole 3. Moreover, after the quick-connecting rod 4 rotates 180°, the limiting ball 404 on the circular block 403 will be stuck in the semi-circular hole 309, which also applies an anti-rotation effect to the quick-connecting rod 4, further ensuring the stability of the quick-connecting rod 4 inserted and fixed inside the mating hole 3.

[0018] Specifically, a limiting rod 308 is arranged inside the third circular hole 303, and the first spring 305 is sleeved on the limiting rod 308. The end of the quick connecting rod 4 facing the lamp housing 2 is provided with a limiting hole 4010 corresponding to the limiting rod 308. The limiting rod 308 can ensure that the first spring 305 can stably extend and retract back and forth to avoid deviation. The limiting hole 4010 is mainly to cooperate with the limiting rod 308 to ensure that the insertion of the quick connecting rod 4 is not affected.

[0019] Furthermore, a second spring 405 is arranged inside the fourth circular hole 402. A limiting groove 406 is symmetrically opened on the inner wall of the fourth circular hole 402, and a limiting block 407 is slidably arranged in the limiting groove 406. The limiting block 407 is connected to the circular block 403. The circular block 403 is flush with the surface of the protrusion 401. The second spring 405 is used to cooperate with the circular block 403 to perform elastic expansion and contraction, so as to realize the expansion and contraction effect of the circular block 403. The limiting groove 406 and the limiting block 407 are mainly used to limit the circular block 403, so that the circular block 403 can always be flush with the surface of the protrusion 401 and will not protrude and get stuck.

[0020] In an embodiment of this utility model, a top ring 306 is arranged on one end of the first spring 305 facing the quick connecting rod 4. Several sets of equidistant balls 307 are rolled around the surface of the top ring 306. A matching groove 409 corresponding to the balls 307 is opened on one end of the quick connecting rod 4 facing the lamp housing 2. The first spring 305 contacts the mating groove 409 of the quick connecting rod 4 through the ball 307 on the top ring 306, realizing rolling friction between the two, which can greatly reduce the friction force between them. Therefore, while ensuring that the pushing force on the quick connecting rod 4 remains unchanged, the first spring 305 can facilitate the quick connecting rod 4 to rotate more easily, making it convenient for personnel to rotate the quick connecting rod 4 and fix it with the insertion hole 3.

[0021] In an embodiment of this utility model, a semi-circular groove 102 is arranged on the inner wall of the fifth circular hole 101, and a positioning block 408 is arranged on the quick connecting rod 4, with the positioning block 408 located inside the semi-circular groove 102. The positioning block 408 can move within the semi-circular slot 102 along with the back-and-forth movement of the quick-connecting rod 4. With the combined action of the semi-circular slot 102 and the positioning block 408, the quick-connecting rod 4 can only rotate 180°. After rotating 180°, the positioning block 408 and the semi-circular slot 102 limit its rotation, ensuring that the protrusion 401 aligns with the opening slot 304. This allows the quick-connecting rod 4 to be accurately and quickly inserted into the insertion hole 3. Once the quick-connecting rod 4 is fully inserted into the insertion hole 3, it rotates 180° in the opposite direction. The positioning block 408 and the semi-circular slot 102 again limit the quick-connecting rod 4, preventing further rotation. This allows the limiting ball 404 to accurately enter the semi-circular hole 309. Conversely, the quick-connecting rod 4 can be accurately and quickly pulled out of the insertion hole 3.

[0022] Working Principle: This embodiment provides a quick assembly device for the back cover and housing of a reading lamp. First, when assembling the back cover 1 and the housing 2, directly turn the quick connecting rod 4 to align the protrusion 401 on the quick connecting rod 4 with the opening groove 304 of the insertion hole 3. Then, push the quick connecting rod 4 into the insertion hole 3 until the protrusion 401 of the quick connecting rod 4 extends into the second round hole 302. At this time, the quick connecting rod 4 is also fully inserted into the insertion hole 3. Then, rotate the quick connecting rod 4. Rotate 180°, at which point the protrusion 401 will directly lock onto the side of the second round hole 302. At this point, the quick connecting rod 4 is fixedly connected to the insertion hole 3, thus achieving the fixed installation of the lamp back cover 1 and the lamp housing 2. Conversely, by rotating the quick connecting rod 4 180° again, the quick connecting rod 4 can be pulled out from the insertion hole 3, thus separating the lamp back cover 1 and the lamp housing 2. With this structure, the lamp back cover 1 and the lamp housing 2 can be quickly disassembled and assembled, and the stability is good, and it is not easy to loosen. Secondly, when the quick connecting rod 4 is inserted into the insertion hole 3, it will compress the first spring 305, causing the first spring 305 to be in a compressed state. When the quick connecting rod 4 is fully inserted and rotated 180°, the first spring 305 will apply a pushing force to the quick connecting rod 4, making the protrusion 401 press against the second circular hole 302 with greater force. This can effectively prevent the quick connecting rod 4 from rotating and falling off, further ensuring the stability of the quick connecting rod 4 inserted and fixed inside the insertion hole 3. Moreover, after the quick connecting rod 4 rotates 180°, the limiting ball 404 on the circular block 403 will be stuck in the semi-circular hole 309, which also applies an anti-rotation effect to the quick connecting rod 4, further ensuring the stability of the quick connecting rod 4 inserted and fixed inside the insertion hole 3. Secondly, the first spring 305 contacts the mating groove 409 of the quick connecting rod 4 through the ball 307 on the top ring 306, realizing rolling friction between the two, which can greatly reduce the friction force between the two. Therefore, while ensuring that the pushing force on the quick connecting rod 4 remains unchanged, the first spring 305 can facilitate the quick connecting rod 4 to rotate more easily, making it convenient for personnel to rotate the quick connecting rod 4 and fix it with the insertion hole 3. Finally, the positioning block 408 can move within the semi-circular slot 102 along with the back-and-forth movement of the quick-connecting rod 4. With the cooperation of the semi-circular slot 102 and the positioning block 408, the quick-connecting rod 4 can only rotate 180°. After the quick-connecting rod 4 rotates 180°, the positioning block 408 and the semi-circular slot 102 limit its rotation, ensuring that the protrusion 401 and the opening slot 304 are aligned and that the quick-connecting rod 4 can be accurately and quickly inserted into the insertion hole 3. When the quick-connecting rod 4 is fully inserted into the insertion hole 3, it rotates 180° in the opposite direction. At this time, the positioning block 408 and the semi-circular slot 102 limit the quick-connecting rod 4 again, preventing it from rotating continuously. This allows the limiting ball 404 to accurately push into the semi-circular hole 309. Conversely, the quick-connecting rod 4 can also be accurately and quickly pulled out of the insertion hole 3.

[0023] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A reading lamp rear cover and lamp shell quick assembly device, characterized in that, The lamp includes a lamp back cover (1) and a lamp housing (2). The lamp back cover (1) has a fifth round hole (101) at each of its four corners. A quick connecting rod (4) is inserted into the fifth round hole (101). A protrusion (401) is arranged on the end of the quick connecting rod (4) facing the lamp housing (2). The lamp housing (2) has insertion holes (3) at each of its four corners that correspond to the quick connecting rod (4). The insertion holes (3) include a first round hole (301), a second round hole (302), and an opening groove (304). The first round hole (301) and the second round hole (302) are arranged sequentially from the outside to the inside. The opening groove (304) communicates with the second round hole (302). The second circular hole (302) has a third circular hole (303) arranged on the side opposite to the first circular hole (301). A first spring (305) is arranged in the third circular hole (303) and extends into the first circular hole (301). The protrusion (401) has a fourth circular hole (402) on the side opposite to the lamp housing (2). A circular block (403) is elastically arranged in the fourth circular hole (402). A limiting ball (404) is rolled on the surface of the circular block (403). A semi-circular hole (309) corresponding to the limiting ball (404) is arranged in the second circular hole (302).

2. A reading lamp rear cover and lamp housing quick assembly device according to claim 1, characterized in that, The fifth circular hole (101), quick connecting rod (4), first circular hole (301) and third circular hole (303) have the same diameter, the second circular hole (302) has a larger diameter than the quick connecting rod (4), and the cross-sectional dimensions of the opening groove (304) are the same as those of the opening groove (304).

3. The reading lamp rear cover and lamp housing quick assembly device according to claim 1, characterized in that, The third circular hole (303) is provided with a limiting rod (308), and the first spring (305) is sleeved on the limiting rod (308). The quick connecting rod (4) has a limiting hole (4010) corresponding to the limiting rod (308) at one end facing the lamp housing (2).

4. The reading lamp rear cover and lamp housing quick assembly device according to claim 1, characterized in that, The fourth circular hole (402) is equipped with a second spring (405), and the inner wall of the fourth circular hole (402) is symmetrically provided with a limiting groove (406), and a limiting block (407) is slidably arranged in the limiting groove (406), and the limiting block (407) is connected to the circular block (403).

5. The reading lamp rear cover and lamp housing quick assembly device according to claim 1, characterized in that, The first spring (305) has a top ring (306) arranged at one end facing the quick connecting rod (4). Several sets of equidistant balls (307) are rolled around the surface of the top ring (306). The quick connecting rod (4) has a mating groove (409) corresponding to the balls (307) at one end facing the lamp housing (2).

6. A reading lamp rear cover and lamp housing quick assembly device according to claim 1, characterized in that, The inner wall of the fifth circular hole (101) is provided with a semi-circular groove (102), and a positioning block (408) is provided on the quick connecting rod (4), the positioning block (408) being located inside the semi-circular groove (102).

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