Rotatable lamp holder structure

Abstract

The utility model discloses a rotatable lamp holder structure, which comprises a lamp cap, a rotating block and a mounting block, one end of the rotating block is fixed on the lamp cap, the other end of the rotating block is clamped on the mounting block, the rotating block and the mounting block are coaxially arranged, and the rotating block and the mounting block rotate relatively; and the lampshade is fixed on the mounting block. One end of the rotating block is connected with the lamp holder in a threaded tightening connection mode, and the positions of the rotating block and the lamp holder are relatively fixed; the other end of the rotating block is connected with the mounting block in a clamped mode, the rotating block and the mounting block can rotate relative to each other when being connected in a clamped mode, conductive communication of an internal circuit is not affected, the lampshade is fixed to the mounting block, and therefore the purpose of rotating the lampshade can be achieved. A certain redundant length is reserved for the lamp filament, and the lamp filament cannot fall off from the circuit board after the installation block rotates by a certain angle.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamps, and in particular relates to a rotatable lamp holder structure. Background Art

[0002] Lamps are essential electrical appliances in our lives. They can not only light up our lives in the dark, but also create a different atmosphere and enrich our lives. With the improvement of people's living standards, the styles and colors of lamps are becoming more and more diverse, and the simple structure of lamps can no longer meet people's needs.

[0003] Traditional lamps are screwed on the lamp holder and can be lit after the power is turned on. After the lamp is screwed on the lamp holder, it cannot be rotated or shaken. If it is rotated again, it will cause poor internal contact and the filament will not be connected to the power supply. This will cause inconvenience when the lampshade needs to be rotated, especially in special environments, when we need to rotate the lampshade to achieve lighting or atmosphere. It is not very convenient. Utility Model Content

[0004] In order to solve the technical problem that the lampshade in the lamp in the background art is inconvenient to rotate, the purpose of the utility model is to provide a rotatable lamp holder structure to solve the above problem.

[0005] The technical solution for achieving the purpose of the utility model is: a rotatable lamp holder structure, including a lamp holder, a rotating block and a mounting block, one end of the rotating block is fixed to the lamp holder, the other end of the rotating block is clamped on the mounting block, the rotating block and the mounting block are coaxially arranged, and the rotating block and the mounting block rotate relative to each other; the lampshade is fixed on the mounting block.

[0006] The rotating block in this solution plays the role of an intermediate connection. One end of the rotating block is connected to the lamp holder, which can be a threaded connection. The two are relatively fixed. The other end of the rotating block is connected to the mounting block in a snap-fit ​​manner, and the two can rotate relative to each other while being snap-fitted, without affecting the conductive connection of the internal circuit. The lampshade is fixed on the mounting block, so the purpose of rotating the lampshade can be achieved. Specifically, a circuit board is fixedly installed in the rotating block, the lamp holder has a power line connected to the circuit board, and the filament in the lampshade is also connected to the circuit board after passing through the mounting block. The filament has a certain redundant length, and will not fall off the circuit board after the mounting block is rotated a certain angle.

[0007] Further, the mounting block is provided with a mounting groove, the end of the rotating block is provided with a first bending portion, one side of the mounting groove is provided with a second bending portion corresponding to the first bending portion, the first bending portion is installed in the mounting groove, and the second bending portion and the first bending portion are mutually engaged. The first bending portion and the second bending portion are similar to an "L" shape, and can be mutually engaged by embracing each other, and at the same time, there is a certain gap between them, and they are not in a stuck state, and can rotate relative to each other.

[0008] Furthermore, the second bending portion is a limit block, and the limit block is fixed to one side of the installation slot. Specifically, the limit block can be fixed to one side of the installation slot by bolts or other fixing methods to form the second bending portion, so that the first bending portion is easily installed in the installation slot, and then the limit block is fixed to limit the first bending portion in the installation slot, and the first bending portion is limited to rotate in the installation slot.

[0009] Furthermore, a limiting groove is provided on the rotating block, and a limiting protrusion corresponding to the limiting groove is provided on the mounting block, and the limiting protrusion is limited to rotate in the limiting groove. In other words, the rotating block and the mounting block are not able to rotate without limit, because after the ends of the filament are welded to the circuit board, the filament will get tangled when the mounting board rotates relative to the rotating block, and the continuous tangling will cause the filament to fall off the circuit board. Therefore, through the cooperation of the limiting groove and the limiting protrusion, the rotating block and the mounting block can only be fixedly rotated at a certain angle, so as to prevent the filament from falling off the circuit board after excessive rotation and tangling.

[0010] Furthermore, the limiting groove is arranged along the outer wall of the rotating block, and the angle between the two ends of the limiting groove and the axis of the rotating block is not greater than 180°. In other words, the maximum rotation angle between the rotating block and the mounting block does not exceed 180°, so as to protect the filament from excessive rotation and knotting and falling off the circuit board.

[0011] Further, a limiting step is provided on the bottom of the outer wall of the end of the rotating block, and the limiting step forms the limiting groove; the limiting protrusion is located between the inner side wall and the inner bottom wall of the installation groove. The limiting groove is located at the bottom of the outer wall of the rotating block, shaped like a step, and correspondingly, the limiting protrusion is located at the inner bottom of the installation groove and cooperates with the limiting groove.

[0012] Furthermore, the lamp holder also includes a connection block for installing the filament, the connection block has a first channel, a second channel and a third channel that are interconnected, the first channel is connected to the rotating block, and the second channel and the third channel are installed in the lampshade. The connection block is used to protect the filament, and the channels inside the connection block are all cylindrical. When the lampshade rotates, the filament will also rotate and get tangled. After the filament is installed in the connection block, it will not rub against other components or even get tangled, and the filament can be prevented from being entangled on other structural components and falling off the circuit board.

[0013] Furthermore, a mounting cavity is provided in the mounting block, and the first channel is installed in the mounting cavity. The circuit board is fixedly installed in the rotating block, and the end of the rotating block is restricted in the mounting groove in the mounting block. The mounting cavity is provided in the mounting block so that the first channel can be extended into the rotating block, and the filament is connected with the circuit board.

[0014] Furthermore, the mounting groove is provided with a first bolt hole, the limiting block is provided with a second bolt hole corresponding to the first bolt hole, and the limiting block is fixed to the mounting groove by the cooperation of the bolt, the first bolt hole and the second bolt hole. When installing the lamp holder, the first bending portion is first installed in the mounting groove, and then the limiting block is fixed to the mounting groove by bolts, so as to achieve the purpose of constraining the first bending portion in the mounting groove, so that the first bending portion and the limiting block are clamped.

[0015] Furthermore, the bottom of the limit block has a first arc-shaped boss, the bottom of the first bent portion is provided with a second arc-shaped boss, the top of the first bent portion is located below the first arc-shaped boss, and the second arc-shaped boss contacts the inner bottom wall of the limit groove. In other words, the contact portion between the limit block and the first bent portion is limited to the second arc-shaped boss, and the contact portion between the first bent portion and the bottom wall of the mounting groove is limited to the second arc-shaped boss. Compared with surface contact, the contact area of ​​the arc-shaped boss is smaller, which can reduce friction and facilitate the relative rotation between the rotating block and the mounting block.

[0016] Furthermore, a thread is provided on the outer wall of the mounting block, and the lampshade is threadedly fixed on the mounting block, so as to facilitate installation.

[0017] By adopting the above technical solution, the utility model has the following beneficial effects:

[0018] (1) The lamp holder is divided into a lamp cap, a rotating block and a mounting block, the rotating block and the mounting block are rotatable, and the lampshade is fixed on the mounting block to realize the rotation of the lampshade;

[0019] (2) A mounting groove and a second bending portion are provided on the mounting block, and a first bending portion is provided on the end of the rotating block, the first bending portion is installed in the mounting groove, and the first bending portion and the second bending portion are connected and rotated relative to each other;

[0020] (3) The rotating block is provided with a limiting groove, and the mounting block is provided with a limiting protrusion corresponding to the limiting groove, so as to limit the rotation angle between the rotating block and the mounting block, thereby preventing the filament from rotating and tangling and falling off the circuit board;

[0021] (4) The limiting block and the first bending portion are in contact with each other through a first arc-shaped boss, and the first bending portion and the bottom wall of the mounting groove are in contact with each other through a second arc-shaped boss, thereby reducing the contact area and friction and facilitating the mutual rotation between the rotating block and the mounting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the appearance structure of the lamp in the utility model;

[0024] Figure 2 This is a cross-sectional view of the lamp structure in the utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of the rotating block in the utility model;

[0027] Figure 5 This is a schematic diagram of the installation block structure in the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the limit block in the utility model;

[0029] Figure 7 It is a schematic diagram of the connecting block structure in the utility model.

[0030] The numbers in the accompanying drawings are: 1 lamp holder; 2 rotating block; 3 mounting block; 4 mounting groove; 5 first bending portion; 6 limiting block; 7 limiting groove; 8 limiting protrusion; 9 limiting step; 10 connecting block; 11 first channel; 12 second channel; 13 third channel; 14 mounting cavity; 15 first arc-shaped boss; 16 second arc-shaped boss; 17 circuit board; 18 power cord; 19 filament; 20 lampshade; 21 lamp holder. DETAILED DESCRIPTION

[0031] Example:

[0032] like Figure 1-Figure 2 As shown, this embodiment provides a rotatable lamp holder structure, including a lamp holder 1, a rotating block 2 and a mounting block 3, one end of the rotating block 2 is fixed on the lamp holder 1, the other end of the rotating block 2 is clamped on the mounting block 3, the rotating block 2 and the mounting block 3 are coaxially arranged, and the rotating block 2 and the mounting block 3 rotate relative to each other; the lampshade 20 is fixed on the mounting block 3. The rotating block 2 in this solution plays the role of an intermediate connection, one end of the rotating block 2 is connected to the lamp holder 1, and can be a threaded tightening connection, and the positions of the two are relatively fixed; the other end of the rotating block 2 and the mounting block 3 are clamped, and the two can rotate relative to each other while being clamped, without affecting the conductive connection of the internal circuit, and the lampshade 20 is fixed on the mounting block 3, so that the purpose of rotating the lampshade 20 can be achieved. Specifically, a circuit board 17 is fixedly installed in the rotating block 2, a power cord 18 is provided in the lamp head 1 and is connected to the circuit board 17, and the filament 19 in the lampshade 20 is also connected to the circuit board 17 after passing through the mounting block 3. A certain redundant length is reserved for the filament 19 so that it will not fall off the circuit board 17 after the mounting block 3 is rotated by a certain angle.

[0033] like Figure 3 and Figure 5 As shown, the mounting block 3 is provided with a mounting groove 4, the end of the rotating block 2 is provided with a first bending portion 5, one side of the mounting groove 4 is provided with a second bending portion corresponding to the first bending portion 5, the first bending portion 5 is installed in the mounting groove 4, and the second bending portion and the first bending portion 5 are mutually engaged. The first bending portion 5 and the second bending portion are similar to an "L" shape, and can be mutually engaged by embracing each other, and at the same time, there is a certain gap between them, and they are not in a stuck state, and can rotate relative to each other.

[0034] Preferably, the second bending portion is a limit block 6, and the limit block 6 is fixed to one side of the mounting groove 4. Specifically, the limit block 6 can be fixed to one side of the mounting groove 4 by means of bolts or the like to form a second bending portion, so that the first bending portion 5 is easily installed in the mounting groove 4, and then the limit block 6 is fixed to limit the first bending portion 5 in the mounting groove 4, and the first bending portion 5 is limited to rotate in the mounting groove 4.

[0035] like Figure 4As shown, the rotating block 2 is provided with a limiting groove 7, and the mounting block 3 is provided with a limiting protrusion 8 corresponding to the limiting groove 7, and the limiting protrusion 8 is limited to rotate in the limiting groove 7. That is to say, the rotating block 2 and the mounting block 3 are not unlimitedly rotatable, because after the ends of the filament 19 are welded to the circuit board 17, when the mounting plate rotates relative to the rotating block 2, the filament 19 will be knotted, and the continuous knotting will cause the filament 19 to fall off from the circuit board 17. Therefore, through the cooperation of the limiting groove 7 and the limiting protrusion 8, the rotating block 2 and the mounting block 3 can only be fixedly rotated at a certain angle, preventing the filament 19 from falling off from the circuit board 17 after the transition rotation and knotting. The limiting groove 7 is set along the outer wall of the rotating block 2, and the angle between the two ends of the limiting groove 7 and the axis of the rotating block 2 is not greater than 180°. That is to say, the maximum rotation angle between the rotating block 2 and the mounting block 3 does not exceed 180°, so as to protect the filament 19 from excessive rotation and knotting and falling off the circuit board 17. The bottom of the outer wall at the end of the rotating block 2 is provided with a limiting step 9, and the limiting step 9 forms the limiting groove 7; the limiting protrusion 8 is located between the inner side wall and the inner bottom wall of the mounting groove 4. The limiting groove 7 is located at the bottom of the outer wall of the rotating block 2, and is shaped like a step. Correspondingly, the limiting protrusion 8 is located at the inner bottom of the mounting groove 4 and cooperates with the limiting groove 7.

[0036] like Figure 3 and Figure 7 As shown, the lamp holder 21 also includes a connection block 10 for mounting the filament 19, the connection block 10 having a first channel 11, a second channel 12 and a third channel 13 which are interconnected, the first channel 11 being connected to the rotating block 2, the second channel 12 and the third channel 13 being mounted in the lampshade 20. The connection block 10 is used to protect the filament 19, the channels inside the connection block 10 are all cylindrical, when the lampshade 20 rotates, the filament 19 may also rotate and become knotted, etc., after the filament 19 is mounted in the connection block 10, it will not rub against other components or even become knotted, and the filament 19 is prevented from being entangled on other structural components and falling off the circuit board 17. The mounting block 3 is provided with a mounting cavity 14, and the first channel 11 is mounted in the mounting cavity 14. The circuit board 17 is fixedly installed in the rotating block 2, and the end of the rotating block 2 is confined in the mounting groove 4 in the mounting block 3. A mounting cavity 14 is provided in the mounting block 3 to facilitate the first channel 11 to extend into the rotating block 2, and the filament 19 is connected to the circuit board 17.

[0037] Preferably, the mounting groove 4 is provided with a first bolt hole, the limiting block 6 is provided with a second bolt hole corresponding to the first bolt hole, and the limiting block 6 is fixed to the mounting groove 4 by the cooperation of the bolt, the first bolt hole and the second bolt hole. When installing the lamp holder 21, the first bending portion 5 is first installed in the mounting groove 4, and then the limiting block 6 is fixed to the mounting groove 4 by bolts, so as to achieve the purpose of constraining the first bending portion 5 in the mounting groove 4, so that the first bending portion 5 and the limiting block 6 are clamped.

[0038] like Figure 4 and Figure 7 As shown, the bottom of the limit block 6 has a first arc-shaped boss 15, the bottom of the first bending portion 5 is provided with a second arc-shaped boss 16, the top of the first bending portion 5 is located below the first arc-shaped boss 15, and the second arc-shaped boss 16 contacts the inner bottom wall of the limit groove 7. In other words, the contact portion between the limit block 6 and the first bending portion 5 is limited to the second arc-shaped boss 16, and the contact portion between the first bending portion 5 and the bottom wall of the mounting groove 4 is limited to the second arc-shaped boss 16. Compared with surface contact, the contact area of ​​the arc-shaped boss is smaller, which can reduce friction and facilitate the relative rotation between the rotating block 2 and the mounting block 3.

[0039] Preferably, threads are provided on the outer wall of the mounting block 3, and the lampshade 20 is threadedly fixed on the mounting block 3, so as to facilitate installation.

[0040] Working principle: One end of the rotating block 2 in this scheme is connected to the lamp holder 1, and the positions of the two are relatively fixed. The other end of the rotating block 2 is connected to the mounting block 3 in a clamping manner, and the two can rotate relative to each other while being clamped. The lampshade 20 is fixed on the mounting block 3, so that the purpose of rotating the lampshade 20 can be achieved. A circuit board 17 is fixedly installed in the rotating block 2, and a power line 18 is provided in the lamp holder 1 and connected to the circuit board 17. The filament 19 in the lampshade 20 is also connected to the circuit board 17 after passing through the mounting block 3. The filament 19 reserves a certain redundant length, and will not fall off from the circuit board 17 after the mounting block 3 rotates a certain angle. A limiting groove 7 is provided on the rotating block 2, and a limiting protrusion 8 corresponding to the limiting groove 7 is provided on the mounting block 3. The limiting protrusion 8 is limited to rotate in the limiting groove 7. The rotating block 2 and the mounting block 3 can only be fixedly rotated at a certain angle to prevent the filament 19 from falling off from the circuit board 17 after the transition rotation and knotting.

[0041] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotatable lamp holder structure, characterized in that: The invention comprises a lamp holder (1), a rotating block (2) and a mounting block (3); one end of the rotating block (2) is fixed on the lamp holder (1); the other end of the rotating block (2) is clamped on the mounting block (3); the rotating block (2) and the mounting block (3) are coaxially arranged, and the rotating block (2) and the mounting block (3) rotate relative to each other; and a lampshade (20) is fixed on the mounting block (3).

2. The rotatable lamp holder structure according to claim 1, characterized in that: The mounting block (3) is provided with a mounting groove (4), the end of the rotating block (2) is provided with a first bending portion (5), one side of the mounting groove (4) is provided with a second bending portion corresponding to the first bending portion (5), the first bending portion (5) is installed in the mounting groove (4), and the second bending portion and the first bending portion (5) are mutually clamped.

3. The rotatable lamp holder structure according to claim 2, characterized in that: The second bending portion is a limit block (6), and the limit block (6) is fixed on one side of the installation groove (4).

4. The rotatable lamp holder structure according to claim 3, characterized in that: The rotating block (2) is provided with a limiting groove (7), and the mounting block (3) is provided with a limiting protrusion (8) corresponding to the limiting groove (7), and the limiting protrusion (8) is limited to rotate in the limiting groove (7).

5. The rotatable lamp holder structure according to claim 4, characterized in that: The limiting groove (7) is arranged along the outer wall of the rotating block (2), and the angle between the two ends of the limiting groove (7) and the axis of the rotating block (2) is no greater than 180°.

6. The rotatable lamp holder structure according to claim 4, characterized in that: The bottom of the outer wall at the end of the rotating block (2) is provided with a limiting step (9), and the limiting step (9) forms the limiting groove (7); the limiting protrusion (8) is located between the inner side wall and the inner bottom wall of the installation groove (4).

7. The rotatable lamp holder structure according to claim 1, characterized in that: The lamp holder (21) further comprises a connection block (10) for mounting the filament (19), the connection block (10) comprising a first channel (11), a second channel (12) and a third channel (13) which are interconnected, the first channel (11) being connected to the rotating block (2), and the second channel (12) and the third channel (13) being mounted in the lampshade (20).

8. The rotatable lamp holder structure according to claim 7, characterized in that: A mounting cavity (14) is provided in the mounting block (3), and the first channel (11) is mounted in the mounting cavity (14).

9. The rotatable lamp holder structure according to claim 3, characterized in that: The installation groove (4) is provided with a first bolt hole, the limiting block (6) is provided with a second bolt hole corresponding to the first bolt hole, and the limiting block (6) is fixed to the installation groove (4) by the cooperation of the bolt, the first bolt hole and the second bolt hole.

10. The rotatable lamp holder structure according to claim 4, characterized in that: The bottom of the limiting block (6) is provided with a first arc-shaped boss (15), the bottom of the first bending portion (5) is provided with a second arc-shaped boss (16), the top of the first bending portion (5) is located below the first arc-shaped boss (15), and the second arc-shaped boss (16) is in contact with the inner bottom wall of the limiting groove (7).

Images