Split type lamp plug

CN224801607UActive Publication Date: 2026-09-25ZHONGSHAN MINGCAI INTELLIGENT LIGHTING TECH CO LT
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202621247934.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-08-12
Publication Date
2026-09-25
Estimated Expiration
2036-08-12

AI Technical Summary

Technical Problem

为了克服以上不足,本实用新型的目的在于提供一种分体式灯具堵头,以解决一体式堵头内部实体结构对灯板伸入形成空间干涉,且缺少对灯板及透光罩的定位结构的技术问题

Benefits of technology

[0005]通过上述结构,上壳体与下壳体之间形成了中空的容纳空间,为灯板和透光罩伸入堵头内部提供了物理避让,有效避免了一体式堵头实体结构导致的干涉问题,从而允许灯板延伸至灯具端部,有利于增大发光面积并实现灯具整体的小型化设计。同时,下壳体边缘嵌入水平开口的第一防水槽中,能够有效阻挡水分沿上、下壳体的接缝处渗入内部,提升了灯具的防水密封性能。此外,分体式结构使得上壳体与下壳体可以独立开模制造,简化了模具结构,降低了生产难度和成本,并且装配时操作便捷,有利于提高生产效率。通过下壳体的边缘与第一防水槽的嵌合配合,以及两侧的可拆卸连接结构,确保了上、下壳体连接后的整体稳固性,增强了堵头对灯板端部的支撑和保护作用,从而兼顾了小型化设计需求与可靠的防水及结构稳定性。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224801607U_ABST
    Figure CN224801607U_ABST
Patent Text Reader

Abstract

The application discloses a split type lamp plug, which comprises an upper shell and a lower shell. The bottom and side of the upper shell are open, and the edge of the bottom opening is provided with a horizontal first waterproof groove. The lower shell is matched with the bottom of the upper shell and is detachably connected on both sides, and the edge is embedded in the first waterproof groove. After being connected, the two shells form a containing space, and the lamp panel and the end part of the light-transmitting cover are extended into the containing space from the side opening. The structure forms a hollow avoiding part, avoids integral interference, makes the lamp panel extend to the end part, increases the light-emitting area, and is beneficial to miniaturization. The edge of the lower shell is embedded in the horizontal waterproof groove, water is effectively prevented from penetrating along the joint, and the waterproof performance is improved. The split type can be independently molded, the mold is simplified, the cost is reduced, the assembly is convenient, the embedded and detachable connection ensures the stability of the whole, the end part of the lamp panel is enhanced, the protection is enhanced, the miniaturization, the waterproof performance and the structural stability are considered.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of lighting accessories, and in particular relates to a split-type lighting plug. Background Technology

[0002] Currently, LED luminaire end caps typically employ a one-piece injection-molded structure with a solid or semi-solid internal construction. However, as luminaires strive for thinner and lighter designs, the lamp panel and light-transmitting cover need to extend into the end cap to achieve a larger luminous area and a more compact overall size. Traditional one-piece end caps, due to their solid internal structure occupying space, can cause interference or even jamming between the lamp panel end and the end cap's inner wall. This forces designers to increase the overall length of the luminaire or sacrifice luminous area to avoid this, limiting the miniaturization of the luminaire design. Furthermore, existing end caps lack an effective positioning structure for the lamp panel and light-transmitting cover, leading to loosening or misalignment after assembly, insufficient connection stability, and impacting the luminaire's optical performance and reliability. Utility Model Content

[0003] (a) Purpose of the utility model To overcome the above shortcomings, the purpose of this utility model is to provide a split-type lamp plug to solve the technical problems of the internal solid structure of the integrated plug causing spatial interference to the lamp plate, and the lack of a positioning structure for the lamp plate and the light-transmitting cover.

[0004] (II) Technical Solution To achieve the above objectives, the technical solution provided in this application is as follows: A split-type lamp plug includes an upper housing and a lower housing. The bottom and side of the upper housing have openings respectively. The bottom opening edge of the upper housing is provided with a first waterproof groove. The opening direction of the first waterproof groove is horizontal. The shape of the bottom opening of the lower housing is adapted to the upper housing. The two sides of the lower housing are detachably connected to the upper housing, and the edge of the lower housing is embedded in the first waterproof groove. When the upper housing and the lower housing are connected, they form a receiving space. The receiving space is used for the ends of the lamp panel and the light-transmitting cover to extend into the side opening of the upper housing.

[0005] Through the aforementioned structure, a hollow accommodating space is formed between the upper and lower shells, providing physical clearance for the lamp panel and light-transmitting cover to extend into the end cap. This effectively avoids interference problems caused by the integral end cap structure, allowing the lamp panel to extend to the end of the luminaire, which is beneficial for increasing the luminous area and achieving a miniaturized overall design. Simultaneously, the lower shell edge is embedded in the horizontally open first waterproof groove, effectively preventing moisture from seeping into the interior along the joint between the upper and lower shells, improving the luminaire's waterproof sealing performance. Furthermore, the split structure allows the upper and lower shells to be manufactured using independent molds, simplifying the mold structure, reducing production difficulty and cost, and facilitating assembly, thus improving production efficiency. The fitting of the lower shell edge with the first waterproof groove, along with the detachable connection structures on both sides, ensures the overall stability of the upper and lower shells after connection, enhancing the end cap's support and protection of the lamp panel end, thereby balancing miniaturization requirements with reliable waterproofing and structural stability.

[0006] In some embodiments, the upper housing is provided with first slots on both sides, and the lower housing is provided with first engaging portions on both sides. The first engaging portions are embedded in the first slots to achieve a detachable connection between the upper housing and the lower housing.

[0007] This snap-fit ​​connection method has a simple structure, which allows the assembly and disassembly of the upper and lower shells to be completed quickly without the aid of tools, improving the convenience of assembly and maintenance. At the same time, the cooperation between the snap-fit ​​part and the slot can provide a stable snap-fit ​​force, ensuring the firmness of the connection.

[0008] In some embodiments, symmetrical guide grooves are provided on the inner sidewall of the upper housing, and the two sides of the lower housing are raised to form sliding guide portions. The sliding guide portions slide in cooperation with the guide grooves to guide the lower housing to a predetermined position where it engages with the upper housing.

[0009] This guide structure constrains and guides the movement trajectory of the lower housing during assembly, effectively preventing the lower housing from tilting or misaligning, and ensuring that the first engaging part and the first slot can be quickly and accurately connected, thereby improving the smoothness and accuracy of assembly and reducing the difficulty of operation.

[0010] In some embodiments, a limiting protrusion is provided in the middle of the inner sidewall of the upper housing, and the position of the limiting protrusion corresponds to the extension end of the lamp panel, for engaging in the second slot opened at the end of the lamp panel.

[0011] By engaging the limiting protrusion with the second slot, the extended end of the lamp panel can be firmly positioned within the receiving space, effectively limiting the displacement of the lamp panel in the horizontal and vertical directions, preventing the lamp panel from loosening or shifting due to vibration or external force, thereby ensuring the relative positional accuracy of the lamp panel and the light-transmitting cover, which is conducive to maintaining a stable optical effect.

[0012] In some embodiments, a limiting slot is provided on the limiting protrusion at the position corresponding to the edge of the light-transmitting cover. The limiting slot is a right-angle structure used to press the side edge and the upper end face of the light-transmitting cover. The bottom surface of the lower housing is an upwardly inclined slope used to abut against the lower end face of the light-transmitting cover.

[0013] With the above structure, the limiting latch presses the edge of the light-transmitting cover from above, and the inclined surface of the lower housing abuts against the lower end face of the light-transmitting cover from below. The two work together to completely constrain the vertical displacement of the light-transmitting cover, ensuring that the relative position between the light-transmitting cover and the lamp panel remains constant. This avoids changes in the light path or uneven light output caused by the movement of the light-transmitting cover, thereby improving the optical performance stability of the lamp.

[0014] In some embodiments, the groove wall of the first slot extends downward and the length of the downward extension exceeds the first engaging portion. When the plug is installed to the end of the lamp housing, the downwardly extending portion of the groove wall is used to abut against the upwardly folded edge of the light-transmitting cover to define the horizontal direction of the light-transmitting cover.

[0015] By lengthening the wall of the first slot, the contact limit of the folded edge of the light-transmitting cover can be effectively constrained in the horizontal direction, preventing lateral displacement and thus further enhancing the positioning effect of the light-transmitting cover and the stability of the overall structure.

[0016] In some embodiments, the lower housing further includes a second engaging portion connected to the first engaging portion, for inserting into the first assembly slot of the lamp housing to connect the plug to the lamp housing, wherein the size of the second engaging portion is larger than the width of the first engaging slot.

[0017] This structure allows the lower housing to simultaneously engage with the upper housing and assemble with the lamp housing. The second engaging portion, once inserted into the lamp housing assembly slot, provides reliable connection force, ensuring the plug is securely installed at the lamp housing end. Simultaneously, its dimensional limitation acts as a foolproof mechanism, preventing the first engaging portion from dislodging from the first slot due to incorrect assembly orientation. Because the second engaging portion is set to be larger than the width of the first slot, this dimensional difference creates a clear limiting interface as the second engaging portion passes through the slot wall. During assembly, the operator can accurately sense that the second engaging portion has reached the predetermined assembly position, thus achieving reliable positioning and avoiding the risk of loosening due to improper assembly.

[0018] In some embodiments, the lower housing further includes a third engaging portion connected to the sliding guide portion for insertion into the second assembly groove of the lamp housing to connect the plug to the lamp housing, wherein the size of the third engaging portion is larger than the width of the guide groove.

[0019] This structure, in conjunction with the second engaging part, allows the third engaging part to be assembled with the lamp housing simultaneously while the sliding guide part completes its guiding function. This increases the connection points between the plug and the lamp housing, further enhancing the stability and pull-out resistance of the plug after installation. When the sliding guide part reaches its end point, the third engaging part generates a clear stop because it can no longer pass through the guide groove. This allows the operator to clearly perceive through touch or changes in resistance that the lower housing has reached the preset assembly position, thus achieving reliable positioning and avoiding connection deviations caused by insufficient or excessive insertion depth.

[0020] In some embodiments, the side portion of the upper housing protrudes outward to form a fourth engaging portion, which is used to insert into the third assembly groove of the lamp housing to connect the plug to the lamp housing. A second waterproof groove is provided between the fourth engaging portion and the edge of the side portion of the upper housing.

[0021] By adding a fourth engaging part to the upper housing, the upper housing can also be directly engaged with the lamp housing, further dispersing the stress at the connection between the plug and the lamp housing, enhancing the uniformity and reliability of the connection. Simultaneously, it allows the upper and lower housings to form multiple connections with the lamp housing, improving the overall structural strength after assembly. The second waterproof groove further blocks the path of moisture seeping in along the gap between the side of the upper housing and the end of the lamp housing, forming multiple waterproof barriers together with the first waterproof groove. This significantly improves the overall waterproof performance of the lamp's end, enhancing the lamp's reliability and durability in humid environments. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the split-type lamp plug of this utility model; Figure 2 This is a diagram showing the state of the upper and lower housings of the split-type lamp plug of this utility model after disassembly. Figure 3 This is a schematic diagram of the upper shell of the split-type lamp plug of this utility model; Figure 4 This is a schematic diagram of the structure of the lower housing of the split-type lamp plug of this utility model; Figure 5 This is a cross-sectional view of the assembled split-type lamp plug, lamp plate, and light-transmitting cover of this utility model. Figure 6 This is an assembly diagram showing the lamp housing with the lamp panel and light-transmitting cover installed. Figure 7 This is a schematic diagram of the lamp panel structure.

[0023] Figure label: 1. Upper housing; 101. First waterproof groove; 102. First slot; 1021. Groove wall; 103. Guide groove; 104. Limiting protrusion; 105. Limiting latch; 106. Fourth engaging part; 107. Second waterproof groove; 2. Lower housing; 201. First engaging part; 202. Sliding guide part; 203. Second engaging part; 204. Third engaging part; 3. Accommodating space; 4. Lamp panel; 401. Second slot; 5. Light-transmitting cover; 6. Lamp housing; 601. First assembly groove; 602. Second assembly groove; 603. Third assembly groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0025] like Figures 1 to 5 As shown, this utility model provides a split-type lamp plug, comprising: an upper housing 1 and a lower housing 2. The upper housing 1 has an overall dome-shaped structure with openings at its bottom and sides. The side openings allow the ends of the lamp panel 4 and the light-transmitting cover 5 to extend into it. A first waterproof groove 101 is provided at the edge of the bottom opening of the upper housing 1. The first waterproof groove 101 extends circumferentially along the bottom opening and faces horizontally. The lower housing 2 is constructed as a plate-shaped structure adapted to the shape of the bottom opening of the upper housing 1, and its sides are detachably connected to the upper housing 1 for fixation. After the lower housing 2 and the upper housing 1 are assembled, the edge of the lower housing 2 is embedded in the first waterproof groove 101, and the two together form a hollow receiving space 3. The receiving space 3 communicates with the outside through the opening on the side of the upper housing 1, and the ends of the lamp panel 4 and the light-transmitting cover 5 can extend into the receiving space 3 through the side opening. During assembly, the ends of the lamp plate 4 and the light-transmitting cover 5 can be inserted into the receiving space 3 through the side opening. Then, the lower housing 2 can be fastened from the bottom opening of the upper housing 1, so that the edge of the lower housing 2 is embedded in the first waterproof groove 101. Finally, the two are locked and fixed by the detachable connection structure on both sides.

[0026] Specifically, both the upper shell 1 and the lower shell 2 can be made of engineering plastics such as polycarbonate (PC) or acrylonitrile-butadiene-styrene copolymer (ABS) through injection molding. These two materials have good strength and dimensional stability, and the injection molding precision is high, which can ensure that the fit gap between the first waterproof groove 101 and the edge of the lower shell 2 is controlled within a reasonable range.

[0027] This split structure creates an internal space at the end of the lamp fixture into which the lamp plate 4 can extend, effectively avoiding interference issues caused by the integrated end cap structure. This allows the lamp plate 4 to extend into the end cap, resulting in a larger luminous area without increasing the overall length of the lamp fixture. Simultaneously, the horizontally open first waterproof groove 101 forms a fitted seal with the edge of the lower housing 2, effectively preventing external moisture from seeping into the lamp fixture along the seam between the upper housing 1 and the lower housing 2. Furthermore, the upper housing 1 and lower housing 2 are manufactured using independent molds, which not only simplifies the mold structure and reduces manufacturing costs but also facilitates assembly operations, improving mass production efficiency.

[0028] To achieve a detachable connection between the upper housing 1 and the lower housing 2, in one specific embodiment, the upper housing 1 has first slots 102 on both sides, and the lower housing 2 has corresponding protrusions on both sides forming first engaging portions 201, the shape of which matches the first slots 102. During assembly, the first engaging portions 201 are aligned with the first slots 102 and pushed in, so that the first engaging portions 201 are embedded in the first slots 102. The locking between the engaging portions and the slots is achieved by the interference fit or elastic deformation. Preferably, the first slot 102 can be designed as a long strip-shaped groove extending horizontally, and the first engaging portion 201 is designed as a protrusion structure adapted to the slot. The front end of the protrusion can be provided with a guide slope to facilitate pushing in. When disassembly is required, simply pull the lower housing 2 outward to disengage the first engaging portion 201 of the lower housing 2 from the first slot 102 of the upper housing 1, and the lower housing 2 can be removed. This snap-fit ​​connection method has a simple structure, and assembly and disassembly can be completed quickly by hand without the need for screwdrivers or other auxiliary tools, greatly facilitating the assembly and subsequent maintenance of the lamps. Furthermore, by eliminating screws and other fasteners, not only is the number of parts reduced, lowering material costs, but connection failures due to loose screws are also avoided. It is worth noting that the mating clearance and engagement amount between the first slot 102 and the first engaging part 201 need to be rationally designed based on the wall thickness and material properties of the housing to ensure that the engagement force is sufficient to resist vibrations during normal use and prevent loosening.

[0029] Specifically, to further improve the smoothness and accuracy of assembly, guide grooves 103 are symmetrically provided on the inner sidewall of the upper housing 1, extending along the assembly direction. Correspondingly, sliding guide portions 202 are formed by protrusions on both sides of the lower housing 2, which are configured to slide in conjunction with the guide grooves 103. During assembly, the sliding guide portions 202 slide within the guide grooves 103, constraining and guiding the movement trajectory of the lower housing 2. In this way, the first engaging portion 201 of the lower housing 2 can smoothly enter the first engaging slot 102 under the guidance of the sliding guide portions 202.

[0030] Preferably, the cross-sections of the guide groove 103 and the sliding guide 202 can be designed as trapezoidal or dovetail-shaped. This shape can provide a certain limiting effect while guiding, preventing the lower housing 2 from shifting perpendicular to the guiding direction. In this structure, the cooperation between the guide groove 103 and the sliding guide 202 plays a dual role in assembly guidance and positioning, avoiding the situation where the lower housing 2 is tilted or misaligned due to improper operation, which would prevent the engaging part from accurately entering the slot. This significantly reduces the assembly difficulty and improves the assembly efficiency and the success rate of first-time assembly.

[0031] To effectively position the lamp panel 4 extending into the receiving space 3, a limiting protrusion 104 is provided in the middle of the inner sidewall of the upper housing 1. The position of the limiting protrusion 104 corresponds to the extension end of the lamp panel 4. More specifically, a second slot 401 is pre-formed at the extension end of the lamp panel 4. The position and size of the second slot 401 match the limiting protrusion 104. When the end of the lamp panel 4 extends into place from the side opening of the upper housing 1, the limiting protrusion 104 is precisely engaged in the second slot 401 at the end of the lamp panel 4. Preferably, the limiting protrusion 104 can be designed as a protrusion or rib structure extending downward from the inner wall of the upper housing 1, and its thickness is adapted to the width of the second slot 401. The two can be fitted with a clearance fit or a slight interference fit. By engaging the limiting protrusion 104 with the second slot 401, the position of the lamp plate 4's extended end within the receiving space 3 is locked, restricting both its horizontal and vertical movement. Furthermore, even if the lamp is subjected to vibration or impact, the end of the lamp plate 4 will not shift relative to the end cap, thus ensuring that the relative position between the lamp plate 4 and the light-transmitting cover 5 remains consistent, which helps maintain the uniformity and stability of the emitted light.

[0032] Based on this, a limiting slot 105 is further provided on the limiting protrusion 104 at the position corresponding to the edge of the light-transmitting cover 5. The limiting slot 105 is a right-angle structure. When the end of the light-transmitting cover 5 extends into the receiving space 3 along with the lamp plate 4, the limiting slot 105 precisely presses against the side edge and the upper end surface of the light-transmitting cover 5, preventing the light-transmitting cover 5 from tilting up in the vertical direction. At the same time, the bottom surface of the lower housing 2 is an upwardly inclined slope, which abuts against the lower end surface of the light-transmitting cover 5 from below, providing upward support for the light-transmitting cover 5. The two work together to completely constrain the vertical displacement of the light-transmitting cover 5, ensuring that the distance between the light-transmitting cover 5 and the lamp plate 4 remains constant, avoiding changes in the light path or the generation of dark areas due to the vertical movement of the light-transmitting cover 5, thereby improving the optical performance stability of the lamp.

[0033] The groove wall 1021 of the first slot 102 extends downwards, exceeding the position of the first engaging portion 201. In other words, the groove wall 1021 of the first slot 102 is no longer limited to the area that mates with the first engaging portion 201, but extends downwards by an additional distance. When the entire plug is installed to the end of the lamp housing 6, this downwardly extending groove wall 1021 is precisely located outside the upwardly folded edge of the light-transmitting cover 5, with the two positioned opposite each other. As the plug and lamp housing 6 are assembled in place, the extended groove wall 1021 forms an abutment with the folded edge of the light-transmitting cover 5, providing lateral obstruction to the edge of the light-transmitting cover 5. Thus, the horizontal position of the light-transmitting cover 5 is limited by the extended groove wall 1021, preventing further outward displacement. Through this structure, lateral positioning of the light-transmitting cover 5 is achieved by utilizing the extension of the groove wall 1021 of the first slot 102 itself without adding any additional parts, resulting in a compact structure and high functional integration. Based on this, the limiting effect automatically takes effect after the plug and lamp housing 6 are assembled, without the need for additional operation steps. This ensures that the light-transmitting cover 5 will not move laterally in the horizontal direction, and will not affect the degree of freedom of the light-transmitting cover 5 in the vertical direction. It complements the vertical limiting of the aforementioned limiting slot 105, thereby achieving effective positioning of the light-transmitting cover 5 in multiple directions.

[0034] Based on this, the lower housing 2 is also provided with a second engaging portion 203 connected to the first engaging portion 201. This second engaging portion 203 extends outward from the outside of the first engaging portion 201 and is used to insert into the first assembly slot 601 opened on the lamp housing 6, thereby achieving the connection between the plug and the lamp housing 6. The second engaging portion 203 and the first engaging portion 201 are integrally formed, creating a stepped structure. In terms of assembly sequence, the upper housing 1 and the lower housing 2 are first engaged and assembled, and then the second engaging portion 203 is aligned with the first assembly slot 601 of the lamp housing 6 and inserted to install the entire plug onto the end of the lamp body. Preferably, the second engaging portion 203 can adopt an elastic snap-fit ​​structure, with a guide slope at its front end to facilitate insertion into the first assembly slot 601. After insertion, it engages with the inner wall of the assembly slot due to elastic restoring force. In particular, the size of the second engaging portion 203 is set to be larger than the width of the first slot 102. The beneficial effect of this dimensional relationship is that, during the assembly of the upper housing 1 and the lower housing 2, if the operator attempts to over-push the upper housing 1 or oriented it incorrectly during the process of the first engaging part 201 embedding into the first slot 102, the second engaging part 203 cannot pass through the first slot 102 because its size is larger than the width of the first slot 102. Therefore, it is stopped at the slot wall 1021, forming a clear limiting interface. The operator can accurately sense by hand that the first engaging part 201 has reached the predetermined assembly position, achieving reliable positioning and avoiding the risk of loosening due to improper assembly.

[0035] Furthermore, the lower housing 2 is also provided with a third engaging portion 204 connected to the sliding guide portion 202. This third engaging portion 204 extends outward from the outer side of the sliding guide portion 202 and is used to insert into the second assembly slot 602 of the lamp housing 6. The structure of the third engaging portion 204 is similar to that of the second engaging portion 203, and it can also employ an elastic snap-fit ​​structure. The third engaging portion 204 and the second engaging portion 203 are distributed on different sides or at different positions of the lower housing 2, respectively engaging with different assembly slots on the lamp housing 6, thereby forming multiple connection points. During assembly, as the sliding guide portion 202 slides along the guide groove 103 to a predetermined position, the third engaging portion 204 is simultaneously inserted into the second assembly slot 602 of the lamp housing 6. That is, the insertion action of the third engaging portion 204 and the guiding action of the sliding guide portion 202 are completed simultaneously, without the need for additional assembly steps. Preferably, the size of the third engaging portion 204 is also set to be larger than the width of the guide groove 103. When the sliding guide 202 slides to its end position within the guide groove 103, the third engaging part 204 experiences a clear stop because it can no longer pass through the guide groove 103. The operator can clearly perceive through touch that the lower housing 2 has reached the preset assembly position, thus achieving reliable positioning and avoiding connection deviations caused by insufficient or excessive insertion depth. Furthermore, the combined use of the second engaging part 203 and the third engaging part 204 increases the number of connection points between the plug and the lamp housing 6, distributing the force and further enhancing the stability and pull-out resistance of the plug after installation, making it less prone to loosening even in vibration environments.

[0036] Based on this, a fourth engaging portion 106 protrudes outward from the side of the upper housing 1. This fourth engaging portion 106 is used to insert into the third assembly groove 603 of the lamp housing 6 to further connect the plug to the lamp housing 6. By adding the fourth engaging portion 106 to the upper housing 1, the connection point between the plug and the lamp housing 6 is borne by the upper housing 1 and the lower housing 2 respectively, resulting in a more uniform and reasonable distribution of the connection force, avoiding local deformation or damage caused by excessive load on a single housing. In particular, a second waterproof groove 107 is provided between the fourth engaging portion 106 and the edge of the side of the upper housing 1. The second waterproof groove 107 extends along the outer periphery of the side of the upper housing 1. When the plug is installed to the end of the lamp housing 6, the end edge of the lamp housing 6 is embedded in the second waterproof groove 107, forming a labyrinth-like sealing structure. The second waterproof groove 107, together with the aforementioned first waterproof groove 101, forms two waterproof barriers, cutting off the water infiltration path from the joint of the upper shell 1 and the lower shell 2 and the mating gap between the upper shell 1 and the end of the lamp housing 6, respectively. This significantly improves the overall waterproof performance of the lamp end and enhances the reliability and durability of the lamp in humid environments.

[0037] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A split-type lamp plug, characterized in that, include: The upper housing (1) and the lower housing (2) have openings at the bottom and sides respectively. The bottom opening edge of the upper housing (1) is provided with a first waterproof groove (101). The opening direction of the first waterproof groove (101) is horizontal. The shape of the bottom opening of the lower housing (2) is adapted to the shape of the bottom opening of the upper housing (1). The two sides of the lower housing (2) are detachably connected to the upper housing (1), and the edge of the lower housing (2) is embedded in the first waterproof groove (101). When the upper housing (1) and the lower housing (2) are connected, they form a receiving space (3). The receiving space (3) is used for the ends of the lamp plate (4) and the light-transmitting cover (5) to extend into the side opening of the upper housing (1).

2. The split-type lamp plug according to claim 1, characterized in that, The upper housing (1) is provided with first slots (102) on both sides, and the lower housing (2) is provided with first engaging parts (201) on both sides. The first engaging parts (201) are embedded in the first slots (102) to realize the detachable connection between the upper housing (1) and the lower housing (2).

3. The split-type lamp plug according to claim 1, characterized in that, The upper housing (1) has symmetrical guide grooves (103) on its inner sidewall. The lower housing (2) has protrusions on both sides forming sliding guide portions (202). The sliding guide portions (202) slide in cooperation with the guide grooves (103) to guide the lower housing (2) to a predetermined position where it engages with the upper housing (1).

4. The split-type lamp plug according to claim 1, characterized in that, The inner sidewall of the upper housing (1) is provided with a limiting protrusion (104). The position of the limiting protrusion (104) corresponds to the extension end of the lamp plate (4) and is used to be inserted into the second slot (401) opened at the end of the lamp plate (4).

5. The split-type lamp plug according to claim 4, characterized in that, The limiting protrusion (104) has a limiting slot (105) at the position corresponding to the edge of the light-transmitting cover (5). The limiting slot (105) is a right-angle structure and is used to press the side edge and the upper surface of the light-transmitting cover (5). The bottom surface of the lower housing (2) is an upwardly inclined slope and is used to abut the lower surface of the light-transmitting cover (5).

6. The split-type lamp plug according to claim 2, characterized in that, The groove wall (1021) of the first slot (102) extends downward and the length of the downward extension exceeds the first engaging part (201). When the plug is installed at the end of the lamp housing (6), the downward extension of the groove wall (1021) is used to abut against the upward folded edge of the light-transmitting cover (5) to limit the horizontal direction of the light-transmitting cover (5).

7. The split-type lamp plug according to claim 2, characterized in that, The lower housing (2) further includes a second engaging part (203) connected to the first engaging part (201), for inserting into the first assembly groove (601) of the lamp housing (6) to connect the plug to the lamp housing (6), wherein the size of the second engaging part (203) is greater than the width of the first groove (102).

8. The split-type lamp plug according to claim 3, characterized in that, The lower housing (2) further includes a third engaging part (204) connected to the sliding guide part (202) for insertion into the second assembly groove (602) of the lamp housing (6) to connect the plug to the lamp housing (6), wherein the size of the third engaging part (204) is greater than the width of the guide groove (103).

9. The split-type lamp plug according to claim 1, characterized in that, The side of the upper housing (1) protrudes outward to form a fourth engaging part (106), which is used to insert into the third assembly groove (603) of the lamp housing (6) to connect the plug. A second waterproof groove (107) is provided between the fourth engaging part (106) and the side edge of the upper housing (1).