Track lamp convenient to install

Abstract

The utility model discloses a track lamp convenient to mount, which comprises a track body, a first mounting seat, a second mounting seat and a lamp, and the first mounting seat is slidably mounted on the track body; the second mounting seat is slidably mounted on the track body, and the first mounting seat and the second mounting seat are oppositely arranged; a first connecting block and a second connecting block are connected to the two opposite ends of the lamp in a one-to-one butt joint mode, the first connecting block is rotationally connected with the first mounting base, and the second connecting block is connected with the second mounting base. According to the track lamp provided by the utility model, the whole process of installing the lamp on the track body can be completed by only one worker, the installation is more convenient, and the labor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to track lamp technical field, especially a track lamp convenient to installation. BACKGROUND

[0002] The track lamp generally includes track body and lamp, and the lamp is slidably installed on the track body. For the line-shaped lamp, two mounting seats are slidably installed on the track body, and the two ends of the lamp are connected to the mounting seats one by one. At present, for the long line-shaped lamp, two workers are usually needed to complete the lamp installation, one worker connects one end of the lamp to one mounting seat, and the other worker maintains the parallelism between the lamp and the track body, and then the other end of the lamp is connected to the other mounting seat, so that the lamp installation is inconvenient and labor is wasted. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the utility model provides a track lamp convenient to installation, which can be completed by one worker in the whole process of installing the lamp on the track body, and the installation is more convenient and the labor is reduced.

[0004] The track lamp convenient to installation according to the embodiment of the utility model includes track body, first mounting seat, second mounting seat and lamp, the first mounting seat is slidably installed on the track body, the second mounting seat is slidably installed on the track body, the first mounting seat and the second mounting seat are oppositely arranged, the opposite ends of the lamp are connected with the first connecting block and the second connecting block one by one, the first connecting block is rotationally connected with the first mounting seat, and the second connecting block is connected with the second mounting seat.

[0005] The track lamp convenient to installation according to the embodiment of the utility model has at least the following beneficial effects: the track lamp provided by the utility model is installed in the following way, one end of the lamp is rotationally installed on the first mounting seat through the first connecting block, then the lamp is rotated, the other end of the lamp is close to the second mounting seat, and the other end of the lamp is connected to the second mounting seat through the second connecting block, so that the whole process of installing the lamp on the track body can be completed by one worker, two workers are not needed to maintain the parallelism between the lamp and the track body, the installation is more convenient, and the labor is saved.

[0006] According to some embodiments of the utility model, the second connecting block is provided with a first clamping structure, the second mounting seat is provided with a second clamping structure, and the first clamping structure and the second clamping structure can be detachably clamped.

[0007] According to some embodiments of the utility model, one end of first connecting block has pivot, first mounting base includes base and cover, base is seted up with installation channel, one end of installation channel is provided with import and export for pivot, cover is clamped in import and export, cover and the lateral wall of installation channel limit to form rotating hole, pivot is rotatably installed in rotating hole.

[0008] According to some embodiments of the utility model, first connecting block is seted up with first slot, the lateral wall of first slot is provided with first bolt, one end of lamp is inserted in first slot and is fixedly connected with first bolt, second connecting block is seted up with second slot, the lateral wall of second slot is provided with second bolt, the other end of lamp is inserted in second slot and is fixedly connected with second bolt.

[0009] According to some embodiments of the utility model, buffer structure is arranged between first mounting base and first connecting block.

[0010] According to some embodiments of the utility model, buffer structure includes abutting surface and elastic buffer portion that cooperate with each other, one of abutting surface and elastic buffer portion is arranged on first mounting base, and the other is arranged on first connecting block, elastic buffer portion is located on the side of first connecting block away from lamp, abutting surface and elastic buffer portion are used for cooperating with each other to limit the range of rotation of lamp relative to track body, wherein, when abutting surface and elastic buffer portion cooperate with each other, the angle of downward rotation of lamp from second connecting block is less than or equal to 90 degrees.

[0011] According to some embodiments of the utility model, power driver is included, power driver is slidably installed on track body, second mounting base is arranged on power driver, power driver and lamp are electrically connected at the connecting place of second mounting base and second connecting block.

[0012] According to some embodiments of the utility model, track body has track slot, one end of first mounting base away from first connecting block can be slidably inserted in track slot, first mounting base is provided with first limiting device, by operating first limiting device, first limiting device can limit first mounting base to separate from track slot or release the limitation to first mounting base.

[0013] According to some embodiments of the present application, the first limiting device comprises a first operating member and a first limiting support plate, the first operating member is rotatably installed on the first mounting seat, the first mounting seat is provided with a containing groove, the first limiting support plate is arranged in the containing groove and connected with the first operating member, opposite two side walls of the track groove are provided with sliding grooves, when the first operating member rotates, the first operating member can drive the opposite two ends of the first limiting support plate to extend out of or retract into the containing groove, so that the opposite two ends of the first limiting support plate are inserted into or separated from the corresponding sliding grooves.

[0014] According to some embodiments of the present application, one end of the second mounting seat away from the second connecting block is slidably inserted into the track groove, the second mounting seat is provided with a second limiting device, and the second limiting device can limit the second mounting seat from separating from the track groove or release the limitation on the second mounting seat.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0017] Figure 1 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation;

[0018] Figure 2 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation; Figure 1 An enlarged view of position A in FIG. 1;

[0019] Figure 3 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation; Figure 1 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation;

[0020] Figure 4 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation; Figure 1 A sectional view of the track lamp of the present application for easy installation at the first limiting device;

[0021] Figure 5 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation; Figure 1 An exploded view of the track lamp of the present application for easy installation;

[0022] Figure 6 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation; Figure 5 An enlarged view of position B in FIG. 1;

[0023] Figure 7 A schematic view of the track lamp (only the lamp is rotatably installed on the first mounting seat) of the present application for easy installation;Figure 1 The first mounting seat of the track lamp convenient to install and the first connecting block are shown in the exploded view of the track lamp convenient to install.

[0024] Reference signs:

[0025] Track body 100, track slot 110, sliding slot 111, first mounting seat 200, base 200a, cover 200b, mounting slot 210, inlet and outlet 211, elastic buffer 220, containing slot 230, first connecting block 310, rotating shaft 311, first insertion slot 312, abutting surface 313, second connecting block 320, second insertion slot 321, first clamping structure 322, first bolt 330, second bolt 340, power driver 400, second mounting seat 410, second clamping structure 411, lamp 500, second limiting device 600, first limiting device 700, first operating member 710, first limiting support plate 720. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0028] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0030] Reference Figures 1 to 3The track lamp according to the embodiment of the utility model, first mounting seat 200 can be slidably installed in track body 100, second mounting seat 410 can be slidably installed in track body 100, first mounting seat 200 and second mounting seat 410 are oppositely arranged, the opposite two ends of lamp 500 are connected with first connecting block 310 and second connecting block 320 in one-to-one butt joint, first connecting block 310 is rotationally connected with first mounting seat 200, and second connecting block 320 is connected with second mounting seat 410.

[0031] The utility model provides a track lamp, the utility model provides a track lamp, in the installation process, first make one end of lamp 500 through first connecting block 310 rotationally installed in first mounting seat 200, then rotate lamp 500, so that the other end of lamp 500 is close to second mounting seat 410 and makes the other end of lamp 500 through second connecting block 320 and be connected in second mounting seat 410, thereby, the whole process that lamp 500 is installed in track body 100 can also be completed only one staff without two staffs cooperation to maintain parallel between lamp 500 and track body 100, and installation is more convenient, and saves manual work.

[0032] In the specific implementation process, first mounting seat 200 can be rotationally connected with first connecting block 310 and be slidably installed in track body 100, of course, first mounting seat 200 can be slidably installed in track body 100 and then be rotationally connected with first connecting block 310, the shell of lamp 500 and first connecting block 310 can be integrally connected and formed, or the shell of lamp 500 and first connecting block 310 can be formed respectively, in the installation process, first connecting block 310 can be connected with lamp 500 and then be rotationally connected with first mounting seat 200, of course, first connecting block 310 can be rotationally connected with first mounting seat 200 and then be connected with lamp 500. The specific installation order between various components can be determined according to the installation difficulty in actual situation, and is not limited in detail here.

[0033] Refer to Figure 5 And Figure 7According to some embodiments of the utility model, one end of first connecting block 310 has rotating shaft 311, first mounting base 200 includes base 200a and cover 200b, base 200a is provided with installation channel 210, one end of installation channel 210 is provided with import and export 211 for rotating shaft 311 to go in and out, cover 200b is clamped in import and export 211, cover 200b and the side wall of installation channel 210 define rotating hole, and rotating shaft 311 is rotatably installed in rotating hole. By the above setting, rotating shaft 311 of first connecting block 310 can be installed into installation channel 210 from import and export 211, then cover 200b is clamped in import and export 211, at this time, cover 200b and the side wall of installation channel 210 define rotating hole, rotating shaft 311 is just located in rotating hole, thereby completing the rotating connection of first connecting block 310 to first mounting base 200, and the installation is convenient, fast, and first connecting block 310 and first mounting base 200 are connected firmly. Because the installation between first connecting block 310 and first mounting base 200 is convenient and fast, in the specific implementation process, first mounting base 200 can be slidably installed on track body 100, first connecting block 310 is connected with lamp 500, then first connecting block 310 is rotatably connected with first mounting base 200.

[0034] In other embodiments, first connecting block 310 and first mounting base 200 can also use other installation methods, for example, rotating shaft 311 on first connecting block 310 is telescopic, first mounting base 200 is provided with installation slot, and the opposite two side walls of the installation slot are provided with rotating holes, thereby, through the telescopic of rotating shaft 311, rotating shaft 311 can be installed into rotating hole from installation slot, realizing the rotating connection of first connecting block 310 and first mounting base 200.

[0035] Referring to Figure 1 , Figure 5 and Figure 6 , according to some embodiments of the utility model, second connecting block 320 is provided with first clamping structure 322, second mounting base 410 is provided with second clamping structure 411, first clamping structure 322 and second clamping structure 411 can be detachably clamped, by the above setting, second connecting block 320 and second mounting base 410 are detachable, and the installation is convenient and fast. In the specific implementation process, second connecting block 320 can be connected with the other end of lamp 500 first, and then second mounting base 410 is slidably installed on track body 100, and then second connecting block 320 is clamped with second mounting base 410, thereby, the installation is more convenient and fast. Among them, first clamping structure 322 and second clamping structure 411 belong to the common buckle structure, which is not limited here.

[0036] Referring to Figure 5 and Figure 6According to some embodiments of the utility model, first connecting block 310 is equipped with first slot 312, the side wall of first slot 312 is equipped with first bolt 330, one end of lamp 500 is inserted into first slot 312 and is fixedly connected with first bolt 330, then, the one end of lamp 500 can be positioned by first slot 312, to facilitate the subsequent connection and fixation of first bolt 330 and the one end of lamp 500, and thus, lamp 500 and first connecting block 310 are convenient and simple to disassemble and assemble.

[0037] Of course, it can be imagined that in other embodiments, other connection modes can also be adopted between first connecting block 310 and lamp 500, for example, the inner wall of first slot 312 and the other end of lamp 500 are buckled.

[0038] Referring to Figure 5 and Figure 6 , second connecting block 320 is equipped with second slot 321, the side wall of second slot 321 is equipped with second bolt 340, the other end of lamp 500 is inserted into second slot 321 and is fixedly connected with second bolt 340. Then, the one end of lamp 500 can be positioned by second slot 321, to facilitate the subsequent connection and fixation of second bolt 340 and the other end of lamp 500, and thus, lamp 500 and second connecting block 320 are convenient and simple to disassemble and assemble

[0039] Of course, it can be imagined that in other embodiments, other connection modes can also be adopted between second connecting block 320 and lamp 500, for example, the inner wall of second slot 321 and the other end of lamp 500 are buckled.

[0040] It can be imagined that since the installation between second connecting block 320 and second mounting seat 410 is convenient and fast, in other embodiments, second connecting block 320 and the shell of lamp 500 can be integrally formed; similarly, since the installation between first connecting block 310 and first mounting seat 200 is convenient and fast, in other embodiments, first connecting block 310 and the shell of lamp 500 can be integrally formed.

[0041] Referring to Figure 1 and Figure 2 , according to some embodiments of the utility model, the buffer structure is arranged between first mounting seat 200 and first connecting block 310, to avoid the other end of lamp 500 from accidentally separating from second mounting seat 410, causing lamp 500 to rapidly rotate and strongly impact first mounting seat 200 or track body 100 and other objects, protecting lamp 500, and also avoiding the accident of lamp 500 injuring people.

[0042] Referring to Figure 1 , Figure 2 andFigure 7 According to some embodiments of the present application, the buffer structure comprises the abutting surface 313 and the elastic buffer part 220 which cooperate with each other, one of the abutting surface 313 and the elastic buffer part 220 is arranged on the first mounting base 200, and the other is arranged on the first connecting block 310. The elastic buffer part 220 is located on the side of the first connecting block 310 which is away from the lamp 500. The abutting surface 313 and the elastic buffer part 220 are used to cooperate with each other to limit the range of rotation of the lamp 500 relative to the track body 100. When the abutting surface 313 and the elastic buffer part 220 cooperate with each other, the angle of downward rotation of the lamp 500 from the second connecting block 320 is less than or equal to 90 degrees. The above arrangement can avoid the lamp 500 colliding with the track body 100 or other objects when the lamp 500 rotates accidentally. When the lamp 500 rotates to the position where the abutting surface 313 and the elastic buffer part 220 abut against each other, the elastic buffer part 220 can gradually reduce the rotation speed of the lamp 500, thereby achieving buffering and avoiding the situation that the lamp 500 is damaged due to the dramatic change of the rotation speed of the lamp 500. The above arrangement has the advantages of simple structure, easy implementation and cost control.

[0043] It can be imagined that in other embodiments, the above-mentioned buffer structure can also be arranged in other ways. For example, the buffer structure can comprise a buffer which is arranged between the rotating shaft 311 and the first mounting base 200. The buffer can limit the maximum rotation speed of the lamp 500 and the first connecting block 310, thereby avoiding the situation that the rotation speed of the lamp 500 is too fast. The buffer for limiting the rotation speed is commonly used in the field of rotating connection, and will not be described in detail here.

[0044] Referring to Figure 1 and Figure 5 According to some embodiments of the present application, the track lamp further comprises a power driver 400 which is slidingly installed on the track body 100. The power driver 400 and the lamp 500 are separated, which can facilitate the replacement of the lamp 500. The second mounting base 410 is arranged on the power driver 400. The power driver 400 and the lamp 500 are electrically connected at the connecting position of the second mounting base 410 and the second connecting block 320. Thus, the second connecting block 320 and the second mounting base 410 correspond to the connecting terminal between the lamp 500 and the power driver 400. After the lamp 500 is connected to the second mounting base 410 through the second connecting block 320, the lamp 500 can be automatically electrically connected to the power driver 400. When the lamp 500 is accidentally separated from the second mounting base 410, the lamp 500 and the power driver 400 will also be automatically disconnected, thereby ensuring the safety of electricity use.

[0045] Referring to Figure 4 , Figure 5 and Figure 7According to some embodiments of the utility model, track body 100 has track slot 110, one end of first mounting base 200 deviating from first connecting block 310 can be slidably inserted in track slot 110, first mounting base 200 is provided with first limiting device 700, and operating first limiting device 700 can limit first mounting base 200 from track slot 110 or release the limitation to first mounting base 200. With the above setting, when installing first mounting base 200, only need to insert first mounting base 200 into track slot 110 and then operate first limiting device 700, first mounting base 200 can be limited in track slot 110, whereby, first mounting base 200 is convenient and quick to install, in addition, when needing to disassemble first mounting base 200, only need to operate first limiting device 700 to release the limitation, first mounting base 200 can be taken out, and first mounting base 200 is convenient to disassemble.

[0046] With reference to Figure 4 And Figure 7 According to some embodiments of the utility model, first limiting device 700 includes first operating part 710 and first limiting support plate 720, first operating part 710 is rotatably installed on first mounting base 200, first mounting base 200 is provided with containing groove 230, first limiting support plate 720 is arranged in containing groove 230 and is connected with first operating part 710, the opposite two side walls of track slot 110 are provided with sliding slot 111, when first operating part 710 rotates, first operating part 710 can drive the opposite two ends of first limiting support plate 720 to extend or retract containing groove 230, so that the opposite two ends of first limiting support plate 720 are inserted or separated from corresponding sliding slot 111, with the above setting, first limiting device 700 is simple in structure, convenient to implement, and convenient, quick to operate.

[0047] In the specific implementation process, first operating part 710 is hidden between lamp 500 and first mounting base 200, whereby, after the installation of lamp 500 is completed, first operating part 710 can be hidden, and the situation that first mounting base 200 falls off and lamp 500 falls due to accidental rotation of first operating part 710 is avoided.

[0048] It can be imagined that the above-mentioned first limiting device 700 can also use other setting modes, for example, the above-mentioned operating part can be slidably installed on first mounting base 200, the above-mentioned first operating part 710 is in transmission connection with first limiting support plate 720, and first operating part 710 can drive first limiting support plate 720 to extend and retract relative to first mounting base 200 when first operating part 710 slides.

[0049] With reference to Figure 5 And Figure 6According to some embodiments of the utility model, one end of the second mounting base 410, which is away from the second connecting block 320, is slidably inserted into the track slot 110, the second mounting base 410 is provided with a second limiting device 600, the second limiting device 600 can limit the second mounting base 410 from being separated from the track slot 110 or release the limitation on the second mounting base 410. With the above arrangement, the second mounting base 410 is convenient and fast to disassemble and assemble.

[0050] The specific arrangement of the second limiting device 600 can refer to the first limiting device 700, which will not be described in detail here.

[0051] It should be noted that in some other embodiments, the first mounting base 200 and the second mounting base 410 described above can also be slidably installed in the track slot 110 in other ways, for example, the first mounting base 200 and the second mounting base 410 can be slidably pushed into the track slot 110 from the entrance of one end of the track slot 110, wherein the first mounting base 200 and the second mounting base 410 are both provided with a limiting protrusion, and the limiting protrusion is inserted into the sliding groove 111 on the sidewall of the track slot 110.

[0052] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0053] The utility model embodiments are described in detail above in combination with the drawings, but the utility model is not limited to the above-described embodiments, and within the knowledge range of ordinary skilled persons in the technical field, various changes can be made without departing from the purpose of the utility model.

Claims

1. A track light that is easy to install, characterized in that, The utility model relates to a track body (100);First mounting seat (200) can be slidably installed in the track body (100);Second mounting seat (410) can be slidably installed in the track body (100), the first mounting seat (200) is arranged opposite with the second mounting seat (410);Lamp (500), the opposite both ends of the lamp (500) are connected with first connecting block (310) and second connecting block (320) one by one, the first connecting block (310) is connected with the first mounting seat (200) rotationally, and the second connecting block (320) is connected with the second mounting seat (410). One end of the first connecting block (310) has a rotating shaft (311), the first mounting seat (200) includes a base (200a) and a cover (200b), the base (200a) is provided with an installation channel (210), one end of the installation channel (210) is provided with an inlet and outlet (211) for the rotating shaft (311) to enter and exit, the cover (200b) is clamped in the inlet and outlet (211), the cover (200b) and the side wall of the installation channel (210) define a rotating hole, and the rotating shaft (311) is rotatably installed in the rotating hole. The second connecting block (320) is provided with a first clamping structure (322), the second mounting seat (410) is provided with a second clamping structure (411), and the first clamping structure (322) and the second clamping structure (411) can be detachably clamped. The first connecting block (310) is provided with a first insertion slot (312), the side wall of the first insertion slot (312) is provided with a first bolt (330), one end of the lamp (500) is inserted into the first insertion slot (312) and is fixedly connected with the first bolt (330), the second connecting block (320) is provided with a second insertion slot (321), the side wall of the second insertion slot (321) is provided with a second bolt (340), the other end of the lamp (500) is inserted into the second insertion slot (321) and is fixedly connected with the second bolt (340). The first mounting seat (200) and the first connecting block (310) are provided with a buffer structure.

2. The easily installed track light of claim 1, wherein, The buffer structure includes a contact surface (313) and an elastic buffer portion (220) that cooperate with each other, one of the contact surface (313) and the elastic buffer portion (220) is arranged on the first mounting seat (200), and the other is arranged on the first connecting block (310), the elastic buffer portion (220) is located on the side of the first connecting block (310) away from the lamp (500), and the contact surface (313) and the elastic buffer portion (220) are used for cooperating with each other to limit the range of rotation of the lamp (500) relative to the track body (100), wherein when the contact surface (313) and the elastic buffer portion (220) cooperate with each other, the angle of downward rotation of the lamp (500) from the second connecting block (320) is less than or equal to 90 degrees.

3. The easily installed track light of claim 1, wherein, ​ 4. The easily installed track light of claim 1, wherein, ​ 5. The easily installed track light of claim 1, wherein, ​ 6. The easily installed track light of claim 5, wherein, ​ 7. The easily installed track light of claim 3, wherein, The power driver (400) is slidably mounted on the track body (100), the second mounting base (410) is arranged on the power driver (400), and the power driver (400) is electrically connected with the lamp (500) at the position where the second mounting base (410) is connected with the second connecting block (320).

8. The easily installed track light of claim 1, wherein, The track body (100) has a track slot (110), one end of the first mounting base (200) away from the first connecting block (310) is slidably inserted into the track slot (110), and the first mounting base (200) is provided with first limiting devices (700). By operating the first limiting devices (700), the first limiting devices (700) can limit the first mounting base (200) from being separated from the track slot (110) or release the limitation on the first mounting base (200).

9. The easily installed track light of claim 8, wherein, The first limiting devices (700) include first operating members (710) and first limiting support plates (720), the first operating members (710) are rotationally mounted on the first mounting base (200), the first mounting base (200) is provided with a containing groove (230), the first limiting support plates (720) are arranged in the containing groove (230) and connected with the first operating members (710), and opposite side walls of the track slot (110) are provided with sliding grooves (111). When the first operating members (710) rotate, the first operating members (710) can drive the opposite ends of the first limiting support plates (720) to extend out of or retract into the containing groove (230), so that the opposite ends of the first limiting support plates (720) are inserted into or separated from the corresponding sliding grooves (111).

10. The easily installed track light of claim 8, wherein, The second mounting base (410) is slidably inserted into the track slot (110) at one end away from the second connecting block (320), the second mounting base (410) is provided with second limiting devices (600), and by operating the second limiting devices (600), the second limiting devices (600) can limit the second mounting base (410) from being separated from the track slot (110) or release the limitation on the second mounting base (410).

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