Detachable telescopic down lamp

Abstract

The utility model discloses a detachable telescopic down lamp. The detachable telescopic down lamp comprises a down lamp body and a telescopic fixing structure. The down lamp body comprises a lamp panel and a lamp cap; an inserting groove is formed in the top of the lamp panel, and the bottom of the telescopic fixing structure is detachably connected into the inserting groove; the lamp holder is detachably installed at the top end of the telescopic fixing structure. Free stepless telescopic adjustment can be achieved, so that it is guaranteed that installation barrels with different depths can be used, the installation stability of the down lamp is improved, and the phenomena that after the down lamp is installed in place, downward sliding and deviation possibly occur due to friction force are avoided.

Description

Technical Field

[0001] This application relates to the field of lighting equipment technology, and in particular to a detachable telescopic downlight. Background Technology

[0002] Downlights, as a common indoor lighting device, are widely used in homes, commercial spaces, and public buildings. Their design aims to achieve a simple and aesthetically pleasing lighting effect by embedding them in the ceiling, without taking up extra space. However, existing downlight installation methods have several problems, especially regarding installation structure and ease of operation.

[0003] Currently, the most common installation method for downlights on the market mainly uses a torsion spring support structure, which fixes the downlight to the side wall of the mounting container using a torsion spring. While this installation method is structurally simple, it has revealed several drawbacks in practical applications. First, the torsion spring support structure is prone to detachment during installation due to external forces, preventing proper installation and increasing the failure rate. Second, the torsion spring has significant elasticity, which can easily cause injury to installers during installation and disassembly, posing a high safety risk. Furthermore, this installation method requires high strength and dimensional accuracy of the mounting container's side wall; if the side wall strength is insufficient or the dimensional deviation is large, the torsion spring is prone to loosening or malfunctioning, further affecting the installation effect and stability of the downlight.

[0004] In addition to the problems mentioned above, existing downlight installation methods also suffer from cumbersome installation steps and inconvenience. For example, some downlights require pre-drilling holes in the ceiling and installation using complex screw or spring hook structures. This not only increases installation time and labor intensity but also places higher demands on the professional skills of the installers. In some special situations, such as installations at heights or in confined spaces, the limitations of this installation method are even more pronounced, potentially leading to low installation efficiency or even failure to complete the installation.

[0005] To address the problems with existing downlight installation methods, some improved solutions have emerged in the market. For example, some patents propose a technology to simplify the installation process through pre-embedded structures or quick-installation / disassembly designs. However, most of these solutions only optimize local structures and fail to fundamentally solve the defects of the torsion spring support structure, as well as the safety hazards and operational inconveniences during installation. Therefore, developing a safer, more convenient, and more stable downlight installation structure remains a pressing technical challenge in this field. Utility Model Content

[0006] This application provides a detachable telescopic downlight to solve the technical problem in existing traditional downlight installation structures where the side wall limiting torsion spring mechanism of the mounting bucket may fall off, making installation impossible, as well as the problems of installation difficulties and the risk of injury associated with existing installation methods.

[0007] In a first aspect, this application provides a detachable telescopic downlight, the detachable telescopic downlight comprising: a downlight body and a telescopic fixing structure; the downlight body comprising: a lamp panel and a lamp head; the top of the lamp panel is provided with a slot, and the bottom of the telescopic fixing structure is detachably connected to the slot; the lamp head is detachably installed on the top of the telescopic fixing structure.

[0008] In one embodiment of this application, the top of the lamp panel is further provided with a limiting block; the bottom of the telescopic fixing structure is provided with a sliding buckle, which can be inserted into the entrance of the slot and move in the slot along a first horizontal direction; when the telescopic fixing structure slides into the bottom plate of the slot, the telescopic fixing structure is locked to the limiting block to prevent the telescopic fixing structure from moving out in a direction opposite to the first horizontal direction.

[0009] In one embodiment of this application, the telescopic fixing structure includes: a first telescopic rod, a second telescopic rod, a base plate, a tension spring, and a torsion spring; the second telescopic rod is a hollow structure, and a guide groove is formed on the arm of the second telescopic rod; the first telescopic rod is slidably fitted inside the second telescopic rod along the groove; the base plate is integrally or separately disposed at the bottom of the second telescopic rod; one end of the tension spring is fixed to the first telescopic rod, and the other end of the tension spring is fixed to the base plate; the first spring arm of the torsion spring is fixedly disposed on the inner side wall of the second telescopic rod, and the second spring arm of the torsion spring is slidably disposed on the guide rail structure inside the first telescopic rod.

[0010] In one embodiment of this application, a guide rail structure is provided on the inner wall of the first telescopic rod; the guide rail structure includes: a guide rail groove and a second spring arm; the guide rail groove includes a vertical guide groove and a locking groove communicating with the guide groove; the locking groove includes at least one locking position; the second spring arm can enter the locking position under the action of external force and stay at the locking position after the external force is removed, so as to adjust the overall height of the telescopic fixing structure.

[0011] In one embodiment of this application, the guide rail structure further includes a bifurcated step; the bifurcated step is disposed at the connection between the guide groove and the locking groove, so that the torsion spring slides along the guide rail groove.

[0012] In one embodiment of this application, the walls of the first telescopic rod and the second telescopic rod are provided with a first notch in the vertical direction, so that the horizontal cross section of the wall is C-shaped; the bottom platform of the second telescopic rod is configured as a trapezoidal shape.

[0013] In one embodiment of this application, a second notch is provided at the bottom of the trapezoidal shape, and the second notch of the second telescopic rod is connected to the first notch for the passage of a fixed wire.

[0014] In one embodiment of this application, the top of the inner sidewall of the telescopic fixing structure is provided with a toothed structure and a buckle; the toothed structure and the buckle are respectively connected to the toothed structure and the buckle of the outer ring of the lamp head.

[0015] In one embodiment of this application, the top of the telescopic fixing structure is provided with a threaded structure so that the lamp head is screwed onto the telescopic fixing structure.

[0016] As described above, the detachable telescopic downlight of this application has the following beneficial effects:

[0017] This application provides a detachable telescopic downlight structure, employing a separate design for the downlight body and the telescopic mechanism. This structure allows for free and stepless telescopic adjustment, ensuring compatibility with installation bins of varying depths. It also prevents slippage and displacement that may occur after installation due to friction, thus improving the downlight's installation stability. This design not only solves the problem of existing downlight installation methods, which rely on torsion springs supporting the sidewall of the mounting bin, leading to the sidewall limiting torsion spring mechanism detaching and causing installation failure, but also addresses safety concerns such as installation difficulties and potential personal injury associated with existing downlights. Furthermore, this structure and its accessories are highly versatile and applicable to a wide range of situations. Attached Figure Description

[0018] Figure 1 The image shown is a three-dimensional structural diagram of the detachable telescopic downlight described in this application embodiment.

[0019] Figure 2 The diagram shown is an exploded view of the telescopic fixing structure of the detachable telescopic downlight described in this application embodiment.

[0020] Figure 3 The diagram shows the guide rail structure and form of the first telescopic rod of the detachable telescopic downlight described in this application embodiment.

[0021] Figure 4 The diagram shows a schematic of the guide rail bifurcation steps of the first telescopic rod in one embodiment of the detachable telescopic downlight described in this application.

[0022] Figure 5 The diagram shows the positions of the torsion spring sliding within the first telescopic rod guide rail in one embodiment of the detachable telescopic downlight described in this application.

[0023] Figure 6 The diagram shows a trapezoidal shape of the bottom platform of the second telescopic rod in one embodiment of the detachable telescopic downlight described in this application.

[0024] Explanation of icon numbers

[0025] Serial Number Name

[0026] 1 Detachable telescopic downlight

[0027] 11. Downlight body

[0028] 12 Telescopic Fixed Structure

[0029] 111 light panel

[0030] 112 lamp holder

[0031] 121 First telescopic pole

[0032] 122 Second telescopic pole

[0033] 123 Base Plate

[0034] 124 tension spring

[0035] 125 Torsion Spring

[0036] Serial Number Name

[0037] 126 tooth-shaped structure

[0038] 127 buckle

[0039] 1111 Slot

[0040] 1112 Limit Block

[0041] 1251 First Spring Arm

[0042] 1252 Second Spring Arm

[0043] 13 Guide rail structure

[0044] 131 guide rail groove

[0045] 1311 Guide slot

[0046] 1312 Locking slot

[0047] 1313 Bifurcation Step

[0048] 21 First point

[0049] 22 Second point

[0050] 23 Third point

[0051] 24. Fourth point

[0052] 31 First Gap

[0053] 32 Second Gap Detailed Implementation

[0054] The present application will be further described below with reference to the accompanying drawings, but the scope of protection of the present application is not limited to the following description.

[0055] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0056] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0057] The following embodiments of this application provide a detachable telescopic downlight that solves the technical problem in traditional downlight installation structures where the side wall limiting torsion spring mechanism of the mounting bucket may fall off, making installation impossible, as well as the problems of installation difficulties and the risk of injury associated with existing installation methods.

[0058] This application provides a detachable telescopic downlight, employing a separate design for the downlight body and the telescopic structure. This structure allows for free and stepless telescopic adjustment, ensuring compatibility with installation bins of varying depths. Simultaneously, it avoids potential slippage or displacement due to friction after installation, thus improving the downlight's installation stability. This design not only solves the problem of existing downlight installation methods relying on torsion springs supporting the side wall of the installation bin, which can lead to the side wall limiting torsion spring mechanism detaching and causing installation failure, but also addresses the safety issues of difficult installation and potential personal injury associated with existing downlights.

[0059] The following will describe in detail, with reference to the accompanying drawings, the principle and implementation method of a detachable telescopic downlight of this embodiment.

[0060] Please see Figure 1 , Figure 2The figures shown are a three-dimensional structural diagram of the detachable telescopic downlight described in the embodiments of this application, and an exploded view of the telescopic fixing structure of the detachable telescopic downlight described in the embodiments of this application. Figure 1 , Figure 2 As shown, the detachable telescopic downlight 1 includes: downlight body 11 and telescopic fixing structure 12.

[0061] In one embodiment, the downlight body 11 includes a lamp panel 111 and a lamp head 112, and the lamp panel 111 and the lamp head 112 are connected to each other by wires. The top of the lamp panel 111 is provided with a slot 1111, and the bottom of the telescopic fixing structure 12 is detachably connected to the slot 1111; the lamp head 112 is detachably installed on the top of the telescopic fixing structure 12.

[0062] Furthermore, the top of the lamp panel 111 is provided with a limiting block 1112; the bottom of the telescopic fixing structure 12 is provided with a sliding buckle; the sliding buckle can be inserted into the entrance of the slot 1111 and move within the slot 1111 along a first horizontal direction. When the telescopic fixing structure 12 slides into the bottom plate of the slot 1111, the telescopic fixing structure 12 is locked to the limiting block 1112 to prevent the telescopic fixing structure 12 from moving out in a direction opposite to the first horizontal direction. That is, when the telescopic fixing structure 12 is compressed to its limit position, the bottom of the telescopic fixing structure 12 is limited and fixed to the top of the lamp panel 111, and the top of the telescopic fixing structure 12 is limited and fixed to the lamp head 112.

[0063] In this structure, the telescopic fixing structure 12 and the downlight body 11 can be snapped together and disassembled. The bottom of the telescopic fixing structure 12 contacts the top of the lamp panel 111. It is pushed forward along the sliding groove to the end to reach the limit. The lamp head 112 is installed from top to bottom onto the telescopic fixing structure 12 to reach the limit, thus achieving a relatively stable installation of the entire ceiling plate.

[0064] Please see Figures 3 to 6 The images respectively show the guide rail structure and form of the first telescopic rod of the detachable telescopic downlight described in this application embodiment, the guide rail bifurcation step diagram of the first telescopic rod of the detachable telescopic downlight described in this application embodiment in one embodiment, the torsion spring sliding at various points in the first telescopic rod guide rail of the detachable telescopic downlight described in this application embodiment in one embodiment, and the trapezoidal shape of the bottom platform of the second telescopic rod of the detachable telescopic downlight described in this application embodiment in one embodiment.

[0065] In one embodiment, the telescopic fixing structure 12 includes: a first telescopic rod 121, a second telescopic rod 122, a base plate 123, a tension spring 124, and a torsion spring 125. The torsion spring 125 is provided with: a first spring arm 1251 and a second spring arm 1252.

[0066] The second telescopic rod 122 has a hollow structure, and the arm of the second telescopic rod 122 forms a guide groove; the first telescopic rod 121 is slidably fitted inside the second telescopic rod 122 along the groove; the base plate 123 can be integrally or separately disposed at the bottom of the second telescopic rod 122; one end of the tension spring 124 is fixed to the first telescopic rod 121, and the other end of the tension spring 124 is fixed to the base plate 123; the first spring arm 1251 of the torsion spring 125 is fixedly disposed on the inner side wall of the second telescopic rod 122, and the second spring arm 1252 of the torsion spring 125 is slidably disposed on the guide rail structure 13 inside the first telescopic rod 121.

[0067] Specifically, the second telescopic rod 122 is fitted over the outside of the first telescopic rod 121, and the second telescopic rod 122 and the first telescopic rod 121 can move up and down relative to each other. The base plate 123 is fixed to the bottom of the second telescopic rod 122. The two ends of the tension spring 124 are respectively fixed to the first telescopic rod 121 and the base plate 123. One end of the torsion spring 125 is fixedly connected to the inner side wall of the second telescopic rod 122, and the other end can slide within the track of the second telescopic rod 122.

[0068] Please continue reading. Figures 3 to 5 .

[0069] In one embodiment, a guide rail structure 13 is provided on the inner wall of the first telescopic rod 121. The guide rail structure 13 includes: a guide rail groove 131 and a second spring arm 1252; the guide rail groove 131 includes a vertical guide groove 1311 and a locking groove 1312 communicating with the guide groove 1311.

[0070] The locking groove 1312 includes at least one locking position; the second spring arm 1252 can enter the locking position under the action of external force and stay in the locking position after the external force is removed, so as to adjust the overall height of the telescopic fixing structure 12.

[0071] The guide rail structure 13 further includes a bifurcated step 1313. The bifurcated step 1313 is disposed at the connection between the guide groove 1311 and the locking groove 1312, so that the torsion spring 125 slides along the guide rail groove 131.

[0072] Specifically, the first telescopic rod 121 is fitted inside the second telescopic rod 122 and can move up and down. Combined with the elastic deformation of the tension spring 124, it can perform adjustment actions such as sliding locking and unlocking.

[0073] Please continue reading. Figure 5 .

[0074] In this embodiment, preferably, a locking position is provided.

[0075] Specifically, the stretching and fixing process is as follows: when the first telescopic rod 121 and the second telescopic rod 122 move separately, the tension spring 124 is stretched; at this time, a reaction force is provided in the shortening stroke direction. During the gradual stretching process between the first telescopic rod 121 and the second telescopic rod 122, the torsion spring 125 slides along the guide groove 1311 of the first telescopic rod 121 until the bifurcation point. Since there is a bifurcation step 1313 on the left side of the bifurcation point, the spring arm of the torsion spring 125 can only slide downward along the right side of the guide groove 1311. When the first telescopic rod 121 and the second telescopic rod 122 are stretched to their longest position, the spring arm of the torsion spring 125 reaches the first point 21 of the guide groove 131 of the first telescopic rod 121. At this time, due to the elastic force of the tension spring 124, the first telescopic rod 121 and the second telescopic rod 122 are shortened. Then, due to its own deflection force, the spring arm of the torsion spring 125 slides along the left side wall of the first point 21 from the first point 21 to the second point 22. At this point, the shortening motion of the spring is limited by the torsion spring 125, causing the spring arm to lock in the locked position, thus achieving locking in the extended state.

[0076] At this time, the first telescopic rod 121 and the second telescopic rod 122 are in a stretched and locked state.

[0077] Unlocking and shortening the movement process: At this time, the spring arm of the torsion spring 125 is in the locked position, and the first telescopic rod 121 and the second telescopic rod 122 are stretched to their longest positions. That is to say, at this time, due to its own torsion, the torsion spring 125 moves along the guide rail from the second point 22 to the third point 23. At this time, due to the elastic force of the tension spring 124, the first telescopic rod 121 and the second telescopic rod 122 are shortened, and the torsion spring 125 is simultaneously pulled to slide into the vertical guide rail at the fourth point 24 on the side of the guide rail to achieve reset.

[0078] In other words, when the first telescopic rod 121 and the second telescopic rod 122 move separately, the tension spring 124 is stretched, and the tension spring 124 undergoes elastic deformation. During the gradual stretching process between the first telescopic rod 121 and the second telescopic rod 122, the second spring arm 1252 of the torsion spring 125 slides downwards along the guide groove 1311 of the first telescopic rod 121 until it reaches the bifurcation point. A bifurcation step 1313 is provided on the left side of the bifurcation point. At this time, the second spring arm 1252 continues to slide downwards along the right track until it reaches the first point 21. At this point, the elastic deformation of the tension spring 124 has reached its maximum stretchable position. Then, after the external force is released, the second spring arm 1252 slides to the second point 22. At this time, the first telescopic rod 121 and the second telescopic rod 122 are in a stretched and locked state. In this state, the entire assembly is rotated and fixed in the mounting bucket through the threaded structure of the lamp holder 112, thereby achieving a fixed connection between the lamp holder 112 and the mounting bucket.

[0079] Next, during unlocking, the first telescopic rod 121 and the second telescopic rod 122 can be stretched to their longest positions. At this time, the second torsion arm of the torsion spring 125, due to its own torsion, slides along the guide rail groove 131 from the second point 22 to the third point 23. Then, due to the elastic force of the tension spring 124, the first telescopic rod 121 and the second telescopic rod 122 are shortened (i.e., the first telescopic rod 121 and the second telescopic rod 122 move towards each other). Simultaneously, the torsion spring 125 is pulled to the fourth point 24 on the side of the guide rail. The second spring arm 1252, due to the elastic deformation restoring force, slides through the bifurcated step 1313 until it slides into the vertical guide rail and resets. At this time, the lamp panel 111 is limited by the ceiling light plate, thus completing the installation of the downlight.

[0080] In this embodiment, because the tension of the tension spring 124 can continuously provide a restoring force, it fits snugly against the wall without gaps after installation, avoiding the slippage and displacement that may occur with existing friction-based systems, thus providing greater stability. Furthermore, the first telescopic rod 121 and the second telescopic rod 122 can be locked at their maximum travel positions; unlocking simply requires pushing them in the direction of increased travel until they are out of the locked area.

[0081] It should be noted that the telescopic fixing mechanism of this application has telescopic methods including vertical telescopic, stepless adjustment, fixed at the longest stretch position and limited by torsion spring 125, guide rail structure 13 and form in the first telescopic rod 121, automatic rebound and other methods.

[0082] Please continue reading. Figure 6 .

[0083] In one embodiment, the walls of the first telescopic rod 121 and the second telescopic rod have a first notch 31 in the vertical direction, so that the horizontal cross-section of the wall is C-shaped; the bottom platform of the second telescopic rod 122 is set in a trapezoidal shape. A second notch 32 is provided at the bottom of the trapezoidal shape, and the second notch 32 of the second telescopic rod is connected to the first notch 31 for the passage of the power supply line.

[0084] Specifically, the first telescopic rod 121 and the second telescopic rod 122 are preferably C-shaped, and the first spring arm 1251 of the tension spring 124 is fixedly installed on the inner side. The wires between the lamp holder 112 and the lamp panel 111 can rotate at the first notch 31 of the C-shape to prevent them from interfering with each other and to prevent the wires from getting tangled, scratched, or damaged, while also maintaining a certain aesthetic appeal. At the same time, the bottom platform of the second telescopic rod 122 is set in a trapezoidal shape to ensure that the first notch 31 of the C-shape faces the direction of the wires during installation, ensuring correct installation and safety against electric shock.

[0085] In one embodiment, the top of the inner sidewall of the telescopic fixing structure 12 is provided with a toothed structure 126 and a buckle 127; the toothed structure 126 and the buckle 127 are respectively connected to the toothed structure 126 and the buckle 127 of the outer ring of the lamp head 112.

[0086] Specifically, the upper part of the first telescopic rod 121 has a toothed structure 126 that mates with the outer ring of the lamp head 112, ensuring that the downlight can be installed in place during installation.

[0087] In one embodiment, the top of the telescopic fixing structure 12 is provided with a threaded structure so that the lamp head is screwed onto the telescopic fixing structure 12.

[0088] In this embodiment, the upper surface of the lamp panel 111 has a notch for the torsion spring 125 of the existing product, which allows the user to choose the installation method.

[0089] This application adopts a separate structure for the downlight body and the telescopic mechanism; this structure allows for more products to be placed within the same packaging volume, reducing packaging costs. Furthermore, this design makes installation more convenient and simpler, avoiding potential risks of injury.

[0090] It should be noted that the downlight in this application can be freely and steplessly extended and adjusted to ensure that it can be used in installation barrels of different depths. The installation structure is located in the center and can be used in installation barrels of various diameters such as 4 inches, 5 inches, and 6 inches.

[0091] The following explanation uses the installation process of each component of a detachable telescopic downlight as an example.

[0092] First, slip the second telescopic rod onto the first telescopic rod from top to bottom. Then, hook one side of the tension spring onto the first telescopic rod and the other side of the tension spring onto the base plate. Next, connect the base plate to the second telescopic rod from bottom to top using threads. Finally, connect the torsion spring to the cylinder of the second telescopic rod with screws. One end of the torsion spring rotates in the guide groove of the first telescopic rod, while the other end is fixed to the inner wall of the second telescopic rod. This completes the installation.

[0093] In summary, the detachable telescopic downlight provided in this application adopts a separate design for the downlight body and the telescopic structure. This structure allows for free and stepless telescopic adjustment, ensuring compatibility with installation bins of varying depths. Simultaneously, it avoids potential slippage or displacement due to friction after installation, thus improving the downlight's installation stability. This design not only solves the problem of existing downlight installation methods relying on torsion springs supporting the side wall of the installation bin, which can lead to the side wall limiting torsion spring mechanism detaching and causing installation failure, but also addresses safety issues such as difficult installation and potential personal injury associated with existing downlights. Furthermore, this structure and its accessories are highly versatile and applicable to a wide range of situations, possessing significant practical value.

[0094] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A detachable telescopic downlight, characterized in that, The detachable telescopic downlight includes: a downlight body and a telescopic fixing structure; The downlight body includes: a lamp panel and a lamp head; The top of the lamp panel is provided with a slot, and the bottom of the telescopic fixing structure is detachably connected to the slot; The lamp head can be detachably installed on the top of the telescopic fixing structure; The telescopic fixing structure includes: a first telescopic rod, a second telescopic rod, a base plate, a tension spring, and a torsion spring; The second telescopic rod is a hollow structure, and its arm forms a guide groove. The first telescopic rod is slidably fitted inside the second telescopic rod along the groove. The base plate is integrally or separately disposed at the bottom of the second telescopic rod. One end of the tension spring is fixed to the first telescopic rod, and the other end of the tension spring is fixed to the base plate. The first spring arm of the torsion spring is fixedly disposed on the inner side wall of the second telescopic rod, and the second spring arm of the torsion spring is slidably disposed on the guide rail structure inside the first telescopic rod.

2. The detachable telescopic downlight according to claim 1, characterized in that, The top of the lamp panel is also provided with a limiting block; The telescopic fixing structure is provided with a sliding buckle at the bottom, which can be inserted into the entrance of the slot and move in the slot along the first horizontal direction; When the telescopic fixing structure slides into the slot bottom plate, the telescopic fixing structure locks to the limiting block to prevent the telescopic fixing structure from moving out in a direction opposite to the first horizontal direction.

3. The detachable telescopic downlight according to claim 1, characterized in that, The inner wall of the first telescopic rod is provided with a guide rail structure; The guide rail structure includes: a guide rail groove and a second spring arm; the guide rail groove includes a vertical guide groove and a locking groove communicating with the guide groove; The locking slot includes at least one locking position; The second spring arm can enter the locking position under the action of external force and remain in the locking position after the external force is removed, so as to adjust the overall height of the telescopic fixing structure.

4. The detachable telescopic downlight according to claim 3, characterized in that, The guide rail structure also includes a bifurcated step; The bifurcated step is located at the connection between the guide groove and the locking groove, so that the torsion spring slides along the guide groove.

5. The detachable telescopic downlight according to claim 1, characterized in that, The walls of the first telescopic rod and the second telescopic rod have a notch in the vertical direction, so that the horizontal cross-section of the wall is C-shaped; The bottom platform of the second telescopic rod is set in a trapezoidal shape.

6. The detachable telescopic downlight according to claim 5, characterized in that, The trapezoidal shape has a second notch at the bottom, and the second notch of the second telescopic rod is connected to the first notch for the power supply line to pass through.

7. The detachable telescopic downlight according to claim 1, characterized in that, The top of the inner wall of the telescopic fixing structure is provided with a toothed structure and a buckle; The toothed structure and the buckle are respectively connected to the toothed structure and the buckle of the outer ring of the lamp head.

8. The detachable telescopic downlight according to claim 1, characterized in that, The top of the telescopic fixing structure is provided with a threaded structure so that the lamp head can be screwed onto the telescopic fixing structure.

Images