Reading lamp
By designing the rotary limit projection and concave cavity structure in adjacent parts of the reading lamp, the problem of inconvenience in disassembly and assembly of commercial reading lamps is solved, and the convenience of tool-free disassembly and assembly is achieved.
Patent Information
- Application Number
- CN202420399668.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-01
AI Technical Summary
Commercially available detachable reading lights require the use of screwdrivers to disassemble and assemble, which leads to inconvenience in disassembly and assemble.
A reading lamp is designed, and its adjacent two parts are disassembled and assembled through a rotating limit projection and a cavity structure, and the first end of the first part can be rotated without tools for assembly or disassembly, achieving convenient disassembly and assembled.
The disassembly and assembly process of reading lamps is realized without the need for tools, which simplifies the operation process and improves the convenience of use.
Smart Images
Figure CN222230350U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of lighting equipment, and specifically relates to a reading lamp. Background Art
[0002] Reading lights play an important role in people's daily lives. They provide sufficient lighting so that people can read better. With the improvement of living standards, people's requirements for reading lights are getting higher and higher. At present, in order to facilitate transportation, consumers prefer to choose some reading lights that can be disassembled and assembled by themselves.
[0003] However, the detachable reading lights available on the market generally use screws to connect two adjacent parts of the reading lights together, which means that users need to prepare their own screwdrivers or purchase tools to complete the disassembly and assembly of the reading lights, which makes the disassembly and assembly of the reading lights inconvenient. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide a reading light that can solve the problem of inconvenience in disassembly and assembly of reading lights in the related art.
[0005] An embodiment of the present application provides a reading light, comprising: a first part and a second part adjacent to each other;
[0006] A first limiting protrusion is disposed on the side wall of the first end of the first part, a concave cavity is disposed on the second part, an opening of the concave cavity is used for the first end to enter and exit the concave cavity, and a second limiting protrusion is disposed on the side wall of the concave cavity;
[0007] When the first end is placed in the concave cavity and can rotate around its axis, when the first end rotates to the first position, the first limiting protrusion and the second limiting protrusion at least partially overlap in the axial direction of the first end, and the first limiting protrusion is located on the side of the second limiting protrusion away from the opening to limit the first end from moving out of the concave cavity. When the first end rotates to the second position, the first limiting protrusion and the second limiting protrusion are staggered with each other in the axial direction of the first end, and the first end can move out of the concave cavity.
[0008] In the embodiment of the present application, when it is necessary to assemble the adjacent first and second parts of the reading light together, the first end of the first part is placed in the concave cavity, and then the first end of the first part is rotated to the first position, so that the first end of the first part can be restricted from moving out of the concave cavity, thereby the adjacent first and second parts of the reading light can be assembled together. When it is necessary to disassemble the adjacent first and second parts of the reading light, the first end of the first part is rotated to the second position, and then the first end of the first part is moved out of the concave cavity, so that the first part can be separated from the second part. It can be seen that the reading light provided in the embodiment of the present application does not require the aid of tools, and the disassembly and assembly between the adjacent first and second parts can be achieved by rotating the first end of the first part, so that the reading light provided in the embodiment is convenient to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the structure of the reading lamp disclosed in the embodiment of the present application when the lamp arm is connected to the base;
[0010] Figure 2 for Figure 1 A schematic diagram of the structure of the disclosed reading light in a disassembled state;
[0011] Figure 3 This is a schematic diagram of the structure of the card holder of the reading light disclosed in the embodiment of the present application;
[0012] Figure 4 This is a schematic structural diagram of a base of a reading lamp disclosed in an embodiment of the present application;
[0013] Figure 5 for Figure 1 a cross-sectional view of the disclosed reading lamp;
[0014] Figure 6 for Figure 1 An exploded view of the public reading light;
[0015] Figure 7 It is a structural schematic diagram of a lamp arm of a reading lamp disclosed in an embodiment of the present application being connected to a clamping device;
[0016] Figure 8 for Figure 7 A schematic diagram of the structure of the disclosed reading light in a disassembled state;
[0017] Fig. 9 A cross-sectional view of a clamping device disclosed in an embodiment of the present application;
[0018] Fig.10 for Figure 7 An exploded view of the public reading light.
[0019] Description of reference numerals:
[0020] 100-first part, 110-card holder, 111-first limiting protrusion, 112-third limiting protrusion, 113-opening, 114-groove, 115-avoidance groove, 120-connecting frame, 130-lamp pole, 140-lamp holder,
[0021] 210-concave cavity, 220-second limiting protrusion, 221-protrusion, 230-fourth limiting protrusion, 240-fifth limiting protrusion, 250-limiting structure,
[0022] 310-base, 320-weight structure, 330-protective pad, 340-screw,
[0023] 400-clamping device, 410-connecting seat, 420-U-shaped member, 421-first side plate, 422-second side plate, 430-clamping member, 440-screw, 450-first flexible buffer pad, 460-second flexible buffer pad, 470-connecting member, 480-nut, 490-handwheel. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.
[0025] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0026] The reading light provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.
[0027] Please refer to Figures 1 to 10 As shown, the embodiment of the present application discloses a reading lamp, such as a desk lamp. Specifically, the disclosed reading lamp includes: a first part 100 and a second part that are adjacent to each other.
[0028] The side wall of the first end of the first part 100 is provided with a first limiting protrusion 111 , and the second part is provided with a cavity 210 , the opening of the cavity 210 is used for the first end to enter and exit the cavity 210 , and the side wall of the cavity 210 is provided with a second limiting protrusion 220 .
[0029] When the first end is placed in the concave cavity 210 and can rotate around its axis, when the first end rotates to the first position, the first limiting protrusion 111 and the second limiting protrusion 220 at least partially overlap in the axial direction of the first end. For example, the first limiting protrusion 111 and the second limiting protrusion 220 can completely overlap or only partially overlap in the axial direction of the first end, and the first limiting protrusion 111 is located on the side of the second limiting protrusion 220 away from the outlet to limit the first end from moving out of the concave cavity 210. When the first end rotates to the second position, the first limiting protrusion 111 and the second limiting protrusion 220 are staggered with each other in the axial direction of the first end, and the first end can move out of the concave cavity 210.
[0030] In the embodiment of the present application, when it is necessary to assemble the adjacent first part 100 and second part of the reading light together, the first end of the first part 100 is placed in the concave cavity 210, and then the first end of the first part 100 is rotated to the first position, so that the first end of the first part 100 can be restricted from moving out of the concave cavity 210, so that the adjacent first part 100 and second part of the reading light can be assembled together. When it is necessary to disassemble the adjacent first part 100 and second part of the reading light, the first end of the first part 100 is rotated to the second position, and then the first end of the first part 100 is moved out of the concave cavity 210, so that the first part 100 can be separated from the second part. It can be seen that the reading light provided in the embodiment of the present application does not require the aid of tools, and the disassembly and assembly between the adjacent first part 100 and the second part can be achieved by rotating the first end of the first part 100, so that the reading light provided in the present embodiment is convenient to disassemble and assemble.
[0031] As a specific implementation method, refer to Figure 2 and Figure 3 As shown, the first limiting protrusion 111 is, for example, a first arc-shaped protrusion arranged along the circumference of the first end, and the second limiting protrusion 220 is, for example, a second arc-shaped protrusion arranged along the circumference of the concave cavity 210. Such an arrangement can reduce the occurrence of the first limiting protrusion 111 and the second limiting protrusion 220 being staggered due to a slight rotation of the first end.
[0032] Further, the second limiting protrusion 220 is, for example, an integrated structure. Figure 4As shown, in other embodiments, the second limiting protrusion 220 may include at least two protrusions 221, each of which may be arranged at intervals along the circumference of the cavity 210, and the protrusions 221 may be, for example, arc-shaped protrusions arranged along the circumference of the cavity 210. Compared with the integrated structure, the split arrangement adopted in this embodiment can save materials, and at the same time disperse the force between the first limiting protrusion 111 and the second limiting protrusion 220, thereby reducing the occurrence of damage to the first limiting protrusion 111 and / or the second limiting protrusion 220 due to stress concentration.
[0033] In another embodiment, reference Figure 3 and Figure 5 As shown, the side wall of the first end is further provided with a third limiting protrusion 112. When the first end rotates to the first position, the third limiting protrusion 112 and the second limiting protrusion 220 at least partially overlap in the axial direction of the first end. For example, the third limiting protrusion 112 and the second limiting protrusion 220 may completely overlap or only partially overlap in the axial direction of the first end, and the third limiting protrusion 112 is located on the side of the second limiting protrusion 220 facing the opening to limit the first end from moving into the concave cavity 210. In this way, when the first end rotates to the first position, the first end cannot move out of the concave cavity 210, and cannot move into the concave cavity 210. In this way, the first part 100 and the second part are not easy to move relative to each other, so that the connection between the first part 100 and the second part is more stable and the connection reliability is better.
[0034] Of course, in other embodiments, the third limiting protrusion 112 may not be provided. In such a configuration, due to the lack of the limiting function of the third limiting protrusion 112, when the first end rotates to the first position, under the impact of external force, the first end may move into the cavity 210, thereby causing the first part 100 and the second part to move relative to each other, resulting in poor connection stability between the first part 100 and the second part.
[0035] As a specific implementation method, Figure 3 As shown, the third limiting protrusion 112 is, for example, an annular protrusion arranged along the circumference of the first end.
[0036] In another embodiment, at least two fourth limiting protrusions 230 are provided at intervals in the circumferential direction of the side wall of the concave cavity 210, and each fourth limiting protrusion 230 is perpendicular to the second limiting protrusion 220. When the first end is placed in the concave cavity 210 and can rotate around its axis, the first limiting protrusion 111 is located between two adjacent fourth limiting protrusions 230. When the first end rotates to the first position, the first limiting protrusion 111 abuts against one of the two adjacent fourth limiting protrusions 230. When the first end rotates to the second position, the first limiting protrusion 111 abuts against the other of the two adjacent fourth limiting protrusions 230. In this way, the first limiting protrusion 111 abuts against the fourth limiting protrusion 230, which means that the first end rotates to the first position or the second position. In this way, the time spent by the user in judging whether the first end rotates to the first position or the second position is saved, and the user can rotate the first end to the first position or the second position relatively quickly.
[0037] In specific use, for example, the first end can be switched from the second position to the first position in a clockwise direction, and the first end can be switched from the first position to the second position in a counterclockwise direction. Of course, in other embodiments, the first end can also be switched from the second position to the first position in a counterclockwise direction, and the first end can be switched from the first position to the second position in a clockwise direction, and the setting can be made according to actual needs.
[0038] Optionally, in other embodiments, the fourth limiting protrusion 230 may not be provided. In such a configuration, the user may need to adjust the position of the first end several times before the first end can be rotated to the first position or the second position, and this process takes a long time.
[0039] Optionally, in other embodiments, only one fourth limiting protrusion 230 may be provided, and when the first end is rotated to the first position, the first limiting protrusion 111 abuts against the fourth limiting protrusion 230, or, when the first end is rotated to the second position, the first limiting protrusion 111 abuts against the fourth limiting protrusion 230. With such a configuration, the user can only rotate the first end to one of the first position and the second position more accurately and quickly, and when the first end needs to be rotated to the other position, it still takes a long time.
[0040] For further reference, Figure 4 As shown, the fourth limiting protrusion 230 is, for example, a limiting plate, and each fourth limiting protrusion 230 corresponds to, for example, a second limiting protrusion 220 , and each fourth limiting protrusion 230 is connected to its corresponding second limiting protrusion 220 .
[0041] In another embodiment, the number of the first limiting protrusion 111 and the number of the second limiting protrusion 220 are both one, for example.
[0042] Optionally, in other embodiments, reference Figure 3 and Figure 4 As shown, the number of the first limiting protrusion 111 and the number of the second limiting protrusion 220 can also be at least two, for example.
[0043] The first limiting protrusions 111 are arranged at intervals along the circumference of the first end. When the first end is placed in the concave cavity 210 and can rotate around its axis, a first limiting protrusion 111 is correspondingly provided between any two adjacent fourth limiting protrusions 230.
[0044] The second limiting protrusions 220 are arranged on the side wall of the concave cavity 210 at intervals along the circumference of the concave cavity 210 , and the second limiting protrusions 220 correspond to the first limiting protrusions 111 one by one.
[0045] Compared with setting the number of the first limiting protrusion 111 and the second limiting protrusion 220 to one, in this embodiment, by setting the number of the first limiting protrusion 111 and the second limiting protrusion 220 to at least two, the contact area between the first part 100 and the second part can be increased, so that the connection reliability between the first part 100 and the second part can be better. In addition, setting the number of the first limiting protrusion 111 and the second limiting protrusion 220 to at least two can disperse the force between the first part 100 and the second part, so that the force distribution between the first part 100 and the second part is more uniform.
[0046] In addition, it can be understood that the greater the number of the first limiting protrusions 111 and the second limiting protrusions 220 , the larger the contact area between the first part 100 and the second part, and thus the better the connection reliability between the first part 100 and the second part.
[0047] In a further embodiment, reference Figure 4 and Figure 5 As shown, a fifth limiting protrusion 240 is provided on one of the fourth limiting protrusions 230, and an avoidance groove 115 is provided on the side wall of the first end along its circumference, and both ends of the avoidance groove 115 extend to two adjacent first limiting protrusions 111 respectively. When the first end is placed in the concave cavity 210 and can rotate around its axis, the fifth limiting protrusion 240 can be slidably arranged in the avoidance groove 115. When the first end is rotated to the first position, the fifth limiting protrusion 240 is abutted against one of the two adjacent first limiting protrusions 111. When the first end is rotated to the second position, the fifth limiting protrusion 240 is abutted against the other of the two adjacent first limiting protrusions 111. In this arrangement, when the first end rotates to the first position or the second position, the fifth limiting protrusion 240 and the fourth limiting protrusion 230 jointly limit the movement of the first end. Compared with only setting the fourth limiting protrusion 230, the cooperation between the fifth limiting protrusion 240 and the fourth limiting protrusion 230 can better limit the movement of the first end, thereby better locating the position of the first end.
[0048] Optionally, in other embodiments, the fifth limiting protrusion 240 and the avoidance groove 115 may not be provided.
[0049] In another embodiment, reference Figure 3 and Figure 4 As shown, the first end is provided with an opening 113, and a limiting structure 250 is provided on the bottom wall of the concave cavity 210. When the first end is placed in the concave cavity 210 and can rotate around its axis, the first end is rotatably arranged between the second limiting protrusion 220 and the limiting structure 250, and the second limiting protrusion 220 is in contact with the outer wall of the first end, and the side wall of the opening 113 is in contact with the limiting structure 250. In this way, the second limiting protrusion 220 can limit the first end from moving in a direction away from the center of the concave cavity 210, and the limiting structure 250 can limit the first end from moving in a direction close to the center of the concave cavity 210. In this way, the connection reliability between the first part 100 and the second part is further improved, and relative shaking is not easy to occur.
[0050] Optionally, in other embodiments, the first end may not be provided with the opening 113 , and the concave cavity 210 may not be provided with the limiting structure 250 .
[0051] In a further embodiment, the number of the limiting structure 250 is one.
[0052] Optionally, in other embodiments, the number of the limiting structures 250 may be at least two, and each limiting structure 250 may be arranged at intervals along the circumference of the concave cavity 210. Compared with providing one limiting structure 250, providing at least two limiting structures 250 may better limit the movement of the first end, and it can be understood that the greater the number of limiting structures 250, the lower the possibility of movement of the first end.
[0053] In a further embodiment, reference Figure 3 As shown, the side walls of the opening 113 are provided with grooves 114 at positions corresponding to the first limiting protrusions 111. The provision of the grooves 114 can save materials and reduce the weight of the reading light.
[0054] Optionally, in other embodiments, the side wall of the opening 113 may not be provided with the groove 114 .
[0055] In another embodiment, reference Figure 1 and Figure 7 As shown, the first part 100 includes a lamp arm, the second part includes a base 310 and a clamping device 400, the first limiting protrusion 111 is provided on a side wall of one end of the lamp arm, and the base 310 and the clamping device 400 are both provided with a cavity 210. In this way, the lamp arm can be connected to the base 310 and the clamping device 400, so that the reading lamp can be applied to more occasions and has better applicability.
[0056] In specific use, when the lamp arm is connected to the base 310, the base 310 can provide a relatively stable support. By placing the base 310 on a supporting structure, the reading lamp can be relatively stably placed on the supporting structure, such as a desktop, a workbench, etc. When the lamp arm is connected to the clamping device 400, the clamping device 400 is clamped on the installation base, so that the reading lamp can be relatively reliably connected to the installation base, such as a plate-like structure, more specifically, the installation base is such as a bed board. In specific use, the user can choose to connect the lamp arm to the base 310 or to connect the lamp arm to the clamping device 400 according to different use occasions.
[0057] Optionally, in other embodiments, the second part may also include only one of the base 310 and the clamping device 400 .
[0058] As a specific implementation method, refer to Figure 2 As shown, the lamp arm includes, for example, a lamp pole 130, a connecting frame 120 and a holder 110 connected in sequence, and the first limiting protrusion 111 and the third limiting protrusion 112 in the above embodiment are, for example, both arranged on the side wall of the holder 110. More specifically, the lamp head 140 of the reading lamp is connected to, for example, one end of the lamp pole 130 away from the connecting frame 120.
[0059] In a further embodiment, the second part further includes a weight structure 320. One side of the base 310 faces the first part 100 and is provided with a concave cavity 210. The weight structure 320 is connected to the side of the base 310 that is away from the concave cavity 210. The weight structure 320 can increase the weight of the base 310, thereby improving the stability of the base 310, and the base 310 can be more stably supported on the above-mentioned support structure.
[0060] Optionally, in other embodiments, the counterweight structure 320 may not be provided.
[0061] As a specific implementation, the counterweight structure 320 is, for example, a counterweight block, and the counterweight structure 320 is connected to the base 310 via, for example, screws 340 .
[0062] In a further embodiment, a protective pad 330 is provided on a side of the counterweight structure 320 facing away from the base 310. The protective pad 330 can be made of, for example, a foam material. In this embodiment, the protective pad 330 can separate the counterweight structure 320 from the support structure, thereby preventing the counterweight structure 320 from being worn due to friction between the counterweight structure 320 and the support structure.
[0063] In a further embodiment, the clamping device 400 includes: a connecting seat 410, a U-shaped member 420, a clamping member 430 and a screw rod 440. The concave cavity 210 is provided at one end of the connecting seat 410. The U-shaped member 420 includes a first side plate 421 and a second side plate 422 which are arranged opposite to each other. The first side plate 421 fits with the other end of the connecting seat 410 and is connected to the connecting seat 410 and the lamp arm through a connecting member 470. The connecting member 470 is, for example, a bolt. More specifically, one end of the bolt without a nut passes through the connecting seat 410 and the holder 110 of the lamp arm in sequence and is locked by a nut 480. The clamping member 430 is movably provided between the first side plate 421 and the second side plate 422. One end of the screw rod 440 passes through the second side plate 422 and is connected to the clamping member 430. The screw rod 440 is threadedly connected to the second side plate 422. The clamping member 430 is, for example, a chuck.
[0064] The clamping device 400 provided in this embodiment rotates the screw 440, and the screw 440 can drive the clamping member 430 to move toward or away from the first side plate 421, so that the distance between the first side plate 421 and the clamping member 430 of the clamping device 400 provided in this embodiment is adjustable.
[0065] When in use, the mounting base is located between the first side plate 421 and the base member. Since the distance between the first side plate 421 and the clamping member 430 of the clamping device 400 provided in this embodiment is adjustable, the clamping device 400 provided in this embodiment can be applied to mounting bases of different thicknesses, so that the reading light provided in this embodiment has good applicability and can be applied to more occasions.
[0066] Optionally, in other embodiments, the clamping device 400 may not be provided with the clamping member 430 and the screw 440. In this case, the mounting base needs to be clamped between the first side plate 421 and the second side plate 422. Since the distance between the first side plate 421 and the second side plate 422 is fixed, the clamping device 400 is only applicable to a mounting base of a single thickness, resulting in poor applicability of the reading light.
[0067] In a further embodiment, a first flexible cushion 450 is disposed on one side of the first side plate 421 facing the clamp 430, and a second flexible cushion 460 is disposed on one side of the clamp 430 facing the first side plate 421. The first flexible cushion 450 and the second flexible cushion 460 are both made of silicone material, for example.
[0068] In this embodiment, when the clamping device 400 is clamped on the installation base, the first flexible buffer pad 450 and the second flexible buffer pad 460 are respectively in contact with the two opposite sides of the installation base, and the first flexible buffer pad 450 and the second flexible buffer pad 460 are both elastic and can buffer the force between the clamping device 400 and the installation base, thereby reducing the damage to the installation base caused by the large impact force between the clamping device 400 and the installation base.
[0069] In addition, the first flexible buffer pad 450 and the second flexible buffer pad 460 are both flexible. Compared with the hard first side plate 421 and the clamping member 430 directly contacting the installation base, the flexible first flexible buffer pad 450 and the second flexible buffer pad 460 contact the installation base, and the installation base is less damaged during the clamping process.
[0070] Optionally, in other embodiments, the first flexible buffer pad 450 and the second flexible buffer pad 460 may not be provided.
[0071] In a further embodiment, reference Fig.10 As shown, in order to facilitate manual rotation of the screw rod 440, a hand wheel 490 may be provided on the screw rod 440. Of course, the screw rod 440 may also be connected to a motor, in which case the motor may be used to drive the screw rod 440 to rotate automatically, thereby adjusting the distance between the clamping member 430 and the first side plate 421.
[0072] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims
1. A reading light, characterized in that: include: The first and second parts are adjacent; A first limiting protrusion is disposed on the side wall of the first end of the first part, a concave cavity is disposed on the second part, an opening of the concave cavity is used for the first end to enter and exit the concave cavity, and a second limiting protrusion is disposed on the side wall of the concave cavity; When the first end is placed in the concave cavity and can rotate around its axis, when the first end rotates to the first position, the first limiting protrusion and the second limiting protrusion at least partially overlap in the axial direction of the first end, and the first limiting protrusion is located on the side of the second limiting protrusion away from the opening to limit the first end from moving out of the concave cavity. When the first end rotates to the second position, the first limiting protrusion and the second limiting protrusion are staggered with each other in the axial direction of the first end, and the first end can move out of the concave cavity.
2. The reading light according to claim 1, characterized in that: The side wall of the first end is also provided with a third limiting protrusion. When the first end rotates to the first position, the third limiting protrusion and the second limiting protrusion at least partially overlap in the axial direction of the first end, and the third limiting protrusion is located on the side of the second limiting protrusion facing the opening to limit the movement of the first end into the concave cavity.
3. The reading light according to claim 1, characterized in that: At least two fourth limiting protrusions are circumferentially spaced apart on the side wall of the concave cavity, and each of the fourth limiting protrusions is perpendicular to the second limiting protrusion. When the first end is placed in the concave cavity and can rotate around its axis, the first limiting protrusion is located between two adjacent fourth limiting protrusions. When the first end rotates to the first position, the first limiting protrusion abuts against one of the two adjacent fourth limiting protrusions. When the first end rotates to the second position, the first limiting protrusion abuts against the other of the two adjacent fourth limiting protrusions.
4. The reading light according to claim 3, characterized in that: The number of the first limiting protrusion and the number of the second limiting protrusion are both at least two; The first limiting protrusions are arranged at intervals along the circumference of the first end, and when the first end is placed in the concave cavity and can rotate around its axis, one of the first limiting protrusions is correspondingly provided between any two adjacent fourth limiting protrusions; The second limiting protrusions are arranged on the side wall of the concave cavity at intervals along the circumferential direction of the concave cavity, and the second limiting protrusions correspond to the first limiting protrusions one by one.
5. The reading light according to claim 3, characterized in that: A fifth limiting protrusion is provided on one of the fourth limiting protrusions, and an avoidance groove is provided on the side wall of the first end along its circumference, and both ends of the avoidance groove respectively extend to two adjacent first limiting protrusions. When the first end is placed in the concave cavity and can rotate around its axis, the fifth limiting protrusion can be slidably arranged in the avoidance groove, and when the first end rotates to the first position, the fifth limiting protrusion is abutted against one of the two adjacent first limiting protrusions, and when the first end rotates to the second position, the fifth limiting protrusion is abutted against the other of the two adjacent first limiting protrusions.
6. The reading light according to claim 1, characterized in that: The first end is provided with an opening, and a limiting structure is provided on the bottom wall of the concave cavity. When the first end is placed in the concave cavity and can rotate around its axis, the first end is rotatably arranged between the second limiting protrusion and the limiting structure, and the second limiting protrusion is in contact with the outer wall of the first end, and the side wall of the opening is in contact with the limiting structure.
7. The reading light according to claim 6, characterized in that: The number of the limiting structures is at least two, and the limiting structures are arranged at intervals along the circumference of the cavity.
8. The reading lamp according to claim 6, characterized in that: The side walls of the opening are provided with grooves at positions corresponding to the first limiting protrusions.
9. The reading light according to claim 1, characterized in that: The first part includes a lamp arm, the second part includes a base and a clamping device, the first limiting protrusion is arranged on a side wall of one end of the lamp arm, and the base and the clamping device are both provided with the concave cavity.
10. The reading light according to claim 9, characterized in that: The clamping device comprises: A connecting seat, wherein the concave cavity is provided at one end of the connecting seat; A U-shaped member, the U-shaped member comprising a first side plate and a second side plate arranged opposite to each other, the first side plate being fitted with the other end of the connecting seat and connected to the connecting seat and the lamp arm through a connecting member; A clamping member and a screw rod, wherein the clamping member is movably arranged between the first side plate and the second side plate, one end of the screw rod passes through the second side plate and is connected to the clamping member, and the screw rod is threadedly connected to the second side plate.
11. The reading light according to claim 9, characterized in that: The lamp arm comprises a lamp pole, a connecting frame and a holder which are connected in sequence, the first limiting protrusion is arranged on the side wall of the holder, and the lamp head of the reading lamp is connected to an end of the lamp pole away from the connecting frame.