CN213777381U - Rotary connection module, desk lamp accessory and desk lamp - Google Patents

Abstract

The embodiment of the application provides a swivelling joint module, desk lamp accessory and desk lamp. The rotary connecting module comprises a mounting base body, a rotary folding piece, a rotary seat and an elastic clamping component; the rotating base is rotatably connected with the mounting base body, the rotating folding piece extends along a straight line and is provided with a rotating connecting end, and the rotating connecting end is rotatably connected with the rotating base; the rotation is provided with a plurality of screens position on the link, and elasticity screens subassembly sets up on the roating seat, and elasticity screens subassembly can cooperate the joint with screens position. The desk lamp accessory comprises a rotary connecting module and a lamp holder or a lamp holder, and the lamp holder or the lamp holder is fixed with the mounting base body. The desk lamp comprises a lamp post and a desk lamp accessory, and the external end is connected with the lamp post. The swivelling joint module, desk lamp accessory and desk lamp that this application embodiment provided can realize the large-angle rotation between lamp holder, lamp stand and the lamp pole and fold, reduce the volume after the desk lamp is folding, practice thrift packing and logistics cost by a wide margin.

Description

Rotary connection module, desk lamp accessory and desk lamp

Technical Field

The application relates to the technical field of lighting, especially, relate to a swivelling joint module, desk lamp accessory and desk lamp.

Background

The desk lamp is an indispensable lighting device in daily study and work. The key function of the desk lamp is rotation and folding, so that the position of the lamp holder can be adjusted.

The desk lamp in the related art usually adjusts the position of the lamp holder by adjusting the bending or folding angle of the lamp pole between the lamp holder and the lamp holder, but the angle between the lamp pole and the lamp holder and the angle between the lamp holder and the lamp holder are basically unadjustable to be folded.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a rotation module, a desk lamp accessory and a desk lamp, so that the problems are solved.

The embodiment of the application adopts the following technical scheme:

in a first aspect, an embodiment of the present application provides a rotary connection module, which includes a mounting base, a rotary folding member, a rotary seat, and an elastic clamping assembly;

the rotating seat is rotatably connected with the mounting base body and can enable the rotating seat to rotate relative to the mounting base body around a first axis, the rotating folding piece extends along a straight line and is provided with a rotating connecting end and an external connecting end, and the rotating connecting end is rotatably connected with the rotating seat and can enable the rotating folding piece to rotate relative to the rotating seat around a second axis perpendicular to the first axis;

rotate the last edge of connecting end the circumference of second axis is provided with a plurality of screens portion, elasticity screens subassembly sets up on the roating seat, elasticity screens subassembly can be under the circumstances that the external force that receives is less than the elastic force with screens portion cooperation joint makes rotate the folded piece for the roating seat is fixed.

Optionally, in the above-mentioned rotary connection module, the rotation connection end is provided with the position-locking portions within 90 degrees of the circumferential direction along the second axis, and when the elastic position-locking assembly is in snap-fit engagement with the position-locking portion located at the outermost side, the rotation folding member is in a posture extending along the first axis.

Optionally, in the above-mentioned rotary connection module, the elastic latching component is disposed along the first axis.

Optionally, in the above-mentioned rotary connection module, the positioning portion is a clamping hole, the elastic positioning assembly includes a thimble and an elastic member, and the elastic member provides an elastic force to the thimble so that the thimble extends into the clamping hole.

Optionally, the rotary connection module further includes a torsion member and a pressing member, the pressing member is fixedly connected to the rotary base, and the torsion member and the mounting base are located between the rotary base and the pressing member and pressed by the rotary base and the pressing member.

Optionally, in the above rotary connection module, the rotary connection module further includes a gasket, the gasket is disposed on a side of the mounting base body facing away from the rotary seat and is relatively fixed to the mounting base body in the circumferential direction of the first axis, and the torsion member is located between the gasket and the pressing member.

Optionally, in the above-mentioned rotary connection module, the rotary connection module further includes a rotation limiting member and a rotation limiting fitting member, the rotation limiting member is fixedly connected to the rotary base, the rotation limiting fitting member is fixedly connected to the mounting base, and the rotation limiting member cooperates with the rotation limiting fitting member to limit the rotation angle of the rotary base.

Optionally, in the above-mentioned rotary connection module, the rotary limiting part is a circumferential protrusion disposed on the pressing part, the rotary limiting fitting part is a limiting protrusion disposed on a side of the mounting base body away from the rotating seat, and the limiting protrusion is located on a moving track of the circumferential protrusion along with the rotation of the rotating seat.

Optionally, in the above rotary connection module, a central angle range corresponding to the circumferential protrusion is 90 degrees, and a central angle range corresponding to the limiting protrusion is 90 degrees.

In a second aspect, an embodiment of the present application provides a desk lamp accessory, including the swivelling joint module, still include lamp holder or lamp stand, the lamp holder or the lamp stand with the installation base body is fixed mutually.

Optionally, in the above-mentioned desk lamp accessory,

the lamp cap comprises a lamp cap shell, and the mounting base body is integrated on the lamp cap shell;

or

The lamp holder comprises a lamp holder housing, and the mounting base is integrated in the lamp holder housing.

In a third aspect, an embodiment of the present application provides a desk lamp, including a lamp post and a desk lamp accessory, the outer connection end is connected with the lamp post.

The technical scheme adopted by the application can achieve the following beneficial effects:

the swivelling joint module, desk lamp accessory and desk lamp that this application embodiment provided can realize the large-angle rotation between lamp holder, lamp stand and the lamp pole and fold, reduce the volume after the desk lamp is folding, practice thrift packing and logistics cost by a wide margin.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is an overall structural view of a desk lamp provided in an embodiment of the present application;

fig. 2 is an exploded view of a desk lamp according to an embodiment of the present disclosure;

fig. 3 is a cross-sectional structural view of a rotary connection module for connecting a lamp socket and a lamp post according to an embodiment of the present disclosure;

fig. 4 is an exploded view of a rotary connection module for connecting a lamp socket and a lamp post according to an embodiment of the present disclosure;

fig. 5 is a view of an assembly structure of a rotary connection module for connecting a lamp socket and a lamp post according to an embodiment of the present disclosure;

fig. 6 is a structural view of the desk lamp provided by the embodiment of the present application in a folded state;

fig. 7 is an overall structural view of a rotation module according to an embodiment of the present disclosure;

fig. 8 is an exploded view of a rotating module according to an embodiment of the present disclosure;

fig. 9 is an exploded view of the rotation module according to the embodiment of the present disclosure, as viewed from one side when the torsion assembly and the rotation limiting member are mounted on the shaft core;

FIG. 10 is a view of the exploded structure of FIG. 9 from the other side;

fig. 11 is a cross-sectional structural view of a rotating module according to an embodiment of the present application;

fig. 12 is an exploded view of a rotating module connecting light pole according to an embodiment of the present disclosure;

fig. 13 is an assembly structure view of the rotating module connecting rod according to the embodiment of the present application.

Reference numerals:

1-lamp holder, 10-lamp holder upper cover, 100-limit bulge, 11-lamp holder lower cover, 12-control panel, 13-balancing weight, 14-silica gel pad, 2-lamp pole, 20-connecting end, 21-connecting hole, 22-end cover, 3-lamp holder, 30-lamp holder upper cover, 31-lamp holder lower cover, 32-light source panel, 33-optical panel, 4-rotary connecting module, 40-rotary folding piece, 400-rotary connecting end, 401-external connecting end, 41-rotary base, 410-rotary shaft, 42-elastic clamping component, 43-torsion component, 44-pressing component, 440-circumferential bulge, 45-screw, 46-gasket, 460-limit matching groove, 47-clamping part, 5-rotary module, 50-shaft core, 500-first axial blocking part, 501-fixed notch, 502-shaft core locking end, 51-shaft sleeve component, 510-first shaft sleeve, 511-second axial blocking part, 512-second shaft sleeve, 513-shaft sleeve locking end, 52-threading hole, 520-first threading hole, 521-second threading hole, 53-torsion component, 530-gasket group, 531-clamping nut, 54-annular assembly cavity, 540-assembly end, 55-rotation limiting part, 56-rotation limiting matching piece, 57-shaft core connecting piece and 58-shaft sleeve connecting piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a desk lamp, as shown in fig. 1, the desk lamp comprises three basic parts, namely a lamp holder 1, a lamp post 2 and a lamp holder 3. As shown in fig. 2, the lamp socket 1 generally includes a socket housing composed of a socket upper cover 10 and a socket lower cover 11, and a control board 12 disposed in the socket housing. In addition, in order to make the desk lamp stand on the desktop stably, auxiliary structures such as a balancing weight 13 and a silica gel pad 14 at the bottom can be further arranged. The base 3 may generally comprise a base housing composed of a base upper cover 30 and a base lower cover 31, and optical components such as a light source board 32 and an optical board 33 may be disposed inside the base housing.

The lamp holder 1 and the lamp cap 3 can be connected through the lamp post 2. In the related art, in order to adjust the position and orientation of the lamp holder 3, the lamp posts 2 are usually designed to be bendable or foldable in angle to adjust the lamp holder, for example, in this embodiment, at least two lamp posts 2 may be provided, two adjacent lamp posts 2 are basically arranged end to end and connected through the rotation module 5 to realize relative rotation, and the lamp holder 1 and the lamp holder 3 are respectively connected with the two outermost lamp posts 2. However, the angle between the lamp post 2 and the lamp holder 1 and the lamp head 3 cannot be adjusted basically, so that the degree of folding the whole desk lamp is limited. Therefore, in the present embodiment, in order to make it possible to fold the base 1 and the base 3 more largely, the rotary connection module 4 is provided as a connection member for connecting the stem 2 and the base 1 and the base 3.

The rotating connection module 4 in this embodiment includes a mounting base, and the mounting base is used for fixedly connecting the rotating connection module 4 with the lamp holder 1 or the lamp cap 3. As shown in fig. 1 and fig. 2, the lamp holder 1 and the lamp post 2, and the lamp cap 3 and the lamp post 2 are respectively connected and fixed by a rotary connection module 4. In some embodiments, the mounting base may be fixedly connected to the socket housing of the socket 1 or the cap housing of the cap 3, and in some more preferred embodiments, the mounting base may also be integrated into the socket housing of the socket 1 or the cap housing of the cap 3. In the embodiment shown in fig. 2, the mounting base of the rotary connection module 4 for connecting the socket 1 and the lamp post 2 is integrated on the socket cover 10, and the mounting base of the rotary connection module 4 for connecting the lamp cap 3 and the lamp post 2 is integrated on the cap cover 30.

The following description will take the rotary connection module 4 for connecting the socket 1 and the lamp post 2 as an example. As shown in fig. 3 to 5, the rotary connection module 4 further includes a rotary folding member 40, a rotary base 41 and an elastic locking member 42, wherein the rotary base 41 is rotatably connected to the mounting base (i.e., the socket cover 10) and enables the rotary base 41 to rotate relative to the socket cover 10 about the first axis Z.

In the present embodiment, in order to make the rotary base 41 to be held at any position during the rotation process as desired by the operator, a torsion member 43 and a pressing member 44 may be provided in the rotary connection module. The pressing member 44 and the rotating base 41 may be fixedly connected by a screw 45, and the torsion member 43 and the base upper cover 10 are located between the rotating base 41 and the pressing member 44 and pressed by the two. During rotation, since the torsion member 43 is always in a compressed state, the torsion member 43 generates a resistance force against the rotation, and the operator must apply a torsion force to the rotary base 41 enough to overcome the resistance force to rotate the rotary base. When the torque is removed, the rotation of the rotary seat 41 is inhibited by the resistance, so that the rotary seat is kept at the current position. The torsion member 43 may comprise a plurality of bowl-shaped discs, which can be elastically deformed when pressed, thereby further increasing the resistance.

The torsion member 43 may be disposed between the base cover 10 of the rotary base 41, but this may expose to the outside, which affects the appearance, so it is preferable to dispose the torsion member 43 between the base cover 10 and the pressing member 44. Since the base top cover 10 is usually a plastic member, in order to prevent the torsion member 43 from being damaged by direct contact and friction with the base top cover 10, the rotating connection module 4 in this embodiment may further include a gasket 46, which is disposed on a side of the socket top cover 10 away from the rotating base 41 and is relatively fixed with the socket top cover 10 in the circumferential direction of the first axis Z, and the torsion member 43 is compressed between the gasket 46 and the compressing member 44.

Since the desk lamp is generally used to illuminate the front, the lamp head 3 is rarely adjusted to the back, and therefore, the lamp socket 1 is generally flat and the weight 13 is disposed in the front for cost reduction. Thus, if the lamp head 3 is rotated to the rear, the desk lamp is likely to topple. Therefore, in order to avoid this, the rotation range of the rotary base 41 needs to be limited. Therefore, in the present embodiment, a rotation limiting member and a rotation limiting fitting member may be disposed in the rotation connection module 4, wherein the rotation limiting member is fixedly connected to the rotation base 41, the rotation limiting fitting member is fixedly connected to the lamp socket upper cover 10, and the rotation limiting member and the rotation limiting fitting member cooperate to limit the rotation angle of the rotation base 41.

The rotation limiting element may be directly disposed on the rotating base 41, or may also be disposed on another component fixedly connected to the rotating base 41, for example, as shown in fig. 4 and 5, the rotation limiting element in this embodiment is a circumferential protrusion 440 disposed on the pressing element 44. Similarly, the rotation limiting fitting may also be fixed at different positions of the lamp socket upper cover 10 according to different setting positions of the rotation limiting member, as shown in fig. 4 and 5, the rotation limiting member is a limiting protrusion 100 provided at a side of the lamp socket upper cover 10 away from the rotating base 41. The limiting protrusion 100 is located on the moving track of the circumferential protrusion 440 rotating with the rotating base 41. In this embodiment, the limiting protrusion 100 may also serve as a structure for keeping the spacer 46 and the socket upper cover 10 circumferentially fixed relatively, that is, a limiting engaging groove 460 matching with the limiting protrusion 100 may be formed on the spacer 46, and the limiting protrusion 100 is clamped in the limiting engaging groove 460 to prevent the spacer 46 and the socket upper cover 10 from circumferentially rotating relatively.

In this embodiment, the central angle range corresponding to the circumferential protrusion 440 may be 90 degrees, and the central angle range corresponding to the limiting protrusion 100 is also 90 degrees. Thus, the actual circle center angle that the circumferential protrusion 440 can rotate is 180 degrees, that is, the rotation of the rotary base 41 within the range of 180 degrees can be realized.

The above described configuration enables the rotation of the swivelling connection module 4 about the first axis Z, and it will be described how the swivelling connection module 4 enables the adjustment in the other dimension.

Referring to fig. 3 and 4, the rotating folding member 40 of the rotating connection module 4 extends along a straight line and has a rotating connection end 400 and an external connection end 401, the rotating connection end 400 and the rotating base 41 can be rotatably connected through a rotating shaft 410 hidden inside the rotating base 41 or other structures, and the rotating folding member 40 can rotate relative to the rotating base 41 around a second axis X perpendicular to the first axis Z.

The rotation connecting end 400 is provided with a plurality of clamping parts 47 along the circumferential direction of the second axis X, the elastic clamping component 42 is arranged on the rotating seat 41, and the elastic clamping component 42 can be matched and clamped with the clamping parts 47 under the condition that the external force applied to the elastic clamping component 42 is smaller than the elastic force, so that the rotation folding piece 40 is fixed relative to the rotating seat 41.

When the lamp holder is used, the external end 401 is connected with one end of the lamp post 2, an operator applies a rotating torque to the lamp post 2, and when the torque is enough to overcome the elastic force of the elastic clamping component 42, the lamp post 2 can drive the rotating folding component 40 to rotate around the second axis X together, and the elastic clamping component 42 is pushed away from the clamping part 47, so that the posture adjustment of the lamp post 2 relative to the lamp holder 1 is realized. When a new position 47 is rotated to align with the position 42, the position 42 can be locked with the position 47 again, and if the torque is removed, the angle between the rotating folding member 40 and the rotating base 41 can be limited by the position 47 and the position 42, so that the lamp post 2 and the lamp socket 1 can be fixed.

Since the lamp base 1 is located at the bottom, the rotation of the lamp post 2 relative to the lamp base 1 is usually limited to the area above the lamp base 1. For this purpose, the rotation connecting end 400 may be provided with the catching portions 47 within 90 degrees in the circumferential direction along the second axis X, and the density of the catching portions 43 may be determined according to the size of the rotation connecting end 400, the size of the catching portions 43, and a desired relative fixed angle, for example, one catching portion 43 may be provided at intervals of 30 degrees. When the elastic catch assembly 42 is snap-fitted with the catch portion 47 in the outermost position, the rotating folder 40 is in a posture extending along the first axis Z. In this way, the rotating folder 40 can be rotated by 90 degrees from a posture extending along the first axis Z to a posture perpendicular to the first axis Z.

The locking portion 47 in this embodiment may be a locking hole, and the elastic locking assembly 42 may include a thimble 420 and an elastic member 421 for providing an elastic force to the thimble 420 to make the thimble 420 extend into the locking portion 43. The elastic member 421 may be a spring, a resilient plate, or the like. In order to facilitate the pushing of the thimble 420 out by the positioning portion 47 along with the rotation of the rotating folding member 40, a guide surface may be provided on the thimble 420 or the positioning portion 47.

In order to enable the resilient detent assembly 42 to be better engaged with each detent 47, the resilient detent assembly 42 is preferably arranged along the first axis Z. Thus, the spring direction of the elastic locking component 42 will point to the second axis X, thereby exerting a stronger locking effect.

The lamp holder 1 and the lamp post 2 in this embodiment can be arbitrarily adjusted in the 180-degree hemispherical range by the connection of the rotary connection module 4. When the lamp pole 2 and the lamp holder 1 need to be folded for storage or packaging, the lamp pole and the lamp holder can be folded to be attached together (see fig. 6), so that the volume is greatly reduced, and the packaging cost and the logistics cost are saved.

Certainly, the rotary connecting module 4 for connecting the lamp holder 3 and the lamp post 2 can enable the lamp holder and the lamp post 2 to achieve the same folding effect, and the lamp holder 1 and the lamp holder 3 can be folded to the same side of the lamp post 2 even under the combined action of the two rotary connecting modules 4, so that the size of the desk lamp is greatly reduced.

When the product is assembled or sold to the outside, the structure that the rotary connecting module 4 and the lamp holder 1 or the lamp holder 3 are assembled into a whole can be used as a table lamp accessory, and the effect of reducing the volume is also achieved.

As shown in fig. 1 and fig. 2, in the present embodiment, two adjacent lamp posts 2 are rotatably connected by a rotating module 5. Specifically, referring to fig. 7 to 11, the rotation module 5 provided in this embodiment may include a shaft core 50 and a shaft sleeve assembly 51, the shaft sleeve assembly 51 is sleeved on the shaft core 50 and can rotate around its own axis a relative to the shaft core 50, and the rotation module 5 further has a threading hole 52 penetrating through the shaft core 50 and the shaft sleeve assembly 51 along the axis a. Depending on the configuration of the shaft 50 and the sleeve assembly 51, the threading hole 52 may be located entirely on the shaft 50, or may be partially located on the shaft 50 and partially located on the sleeve assembly 51. In addition, the rotating module 5 further includes a torsion member 53, the torsion member 53 is also sleeved on the shaft core 50, and at least a portion of the sleeve member 51 is clamped by the torsion member 53 and the shaft core 50, so that a friction force is formed between the sleeve member 51 and the torsion member 53.

The shaft core 50 in this embodiment may be provided with a first axial stopping portion 500, the shaft sleeve assembly 51 includes a first shaft sleeve 510, the first shaft sleeve 510 is sleeved on the shaft core 50 and forms an annular assembling cavity 54 with the shaft core 50, the annular assembling cavity 54 has an assembling end 540 and a limiting end (not numbered in the figure), and the torsion assembly 53 is assembled in the annular assembling cavity 54 and is relatively fixed with the shaft core 50 along the direction of the axis a. The first sleeve 510 is provided with a second axial blocking portion 511 which is located in the annular assembling cavity 54 and blocks the torsion component 53 from separating from the annular assembling cavity 54 from the limiting end, and the second axial blocking portion 511 is clamped by the torsion component 53 and the first axial blocking portion 500, so that friction force is formed between the sleeve component 51 and the torsion component 53.

The torsion assembly 53 in this embodiment may include a washer set 530 and a clamping nut 531, wherein the washer set 530 may include a plurality of flat washers and a plurality of elastic washers spaced apart from each other to provide a larger friction force. A threaded connection portion (not shown) may be provided on the shaft core 50, the washer group 530 and the clamping nut 531 are sequentially fitted in the annular fitting cavity 54, and the clamping nut 531 is fixedly threaded with the threaded connection portion and presses the washer group 530 to clamp the second axial stopper 511 between the first axial stopper 500 and the washer group 530.

In addition, a second shaft sleeve 512 can be arranged in the shaft sleeve assembly, the second shaft sleeve 512 and the first shaft sleeve 511 are fixedly connected through interference fit or other methods and seal the installation end 540, at this time, the threading hole 52 comprises a first threading hole 520 and a second threading hole 521, the first threading hole 520 penetrates through the shaft core 50, and the second threading hole 521 penetrates through the second shaft sleeve 512 and is communicated with the first threading hole 520.

When the lamp posts are connected, one of the two adjacent lamp posts 2 is fixedly connected with the shaft core 50, and the other one is fixedly connected with the shaft sleeve assembly 51. When an operator needs to adjust the angle between two adjacent lamp poles 2, a force can be applied to one of the lamp poles 2, and the force is transmitted to the shaft core 50 or the shaft sleeve assembly 51. When the applied force is larger than the friction force between the sleeve assembly 51 and the torsion assembly 53, the two lamp posts 2 can rotate relative to each other around the rotating shaft a. When the applied force disappears or is smaller than the friction force between the shaft sleeve component 51 and the torsion component 53, the shaft sleeve component 51 and the shaft core 50 stop rotating, so that the angle between the two lamp posts 2 is fixed, the rotation is convenient, firm and reliable, and the angle can be adjusted at will.

The power supply of the desk lamp is usually connected to the lamp base 1, and then the power is transmitted from the lamp base 1 to the lamp cap 3 by an internal wire (not shown). For aesthetic reasons and to prevent electric shock, the electrical wires are usually routed through the lamp stem 2 to the base 3 in a concealed manner. When entering the adjacent lamp post 2 from the inside of one lamp post 2, the wire can pass through the rotating module 5 through the threading hole 52, so that the wire is completely hidden.

In this embodiment, if two adjacent lamp posts 2 can rotate freely without limit, the wires inside are likely to be stranded, which causes a safety hazard. Therefore, the rotation module 5 in this embodiment may further include a rotation limiting member 55 and a rotation limiting fitting 56, the rotation limiting member 55 and the shaft core 50 are relatively fixed in the circumferential direction of the axis a, and the rotation limiting fitting 56 and the shaft sleeve assembly 51 are relatively fixed in the circumferential direction of the axis a. The rotation limiting member 55 cooperates with the rotation limiting fitting 56 to limit the rotation angle of the sleeve assembly 51 relative to the core 50 about the axis a.

Specifically, in the present embodiment, there are many ways to fix the rotation limiting member 55 and the shaft core 50 relatively in the circumferential direction of the axis a. For example, the rotation stopper 55 may be directly fixed to the shaft core 50. However, considering that the shaft core 50 needs to be sleeved with the shaft sleeve assembly 51 and the torsion assembly 53, the direct fixation of the rotation limiting member 55 on the shaft core 50 may affect the assembly of the shaft sleeve assembly 51 and the torsion assembly 53.

For this purpose, as shown in fig. 10, the rotation limiting fitting 56 is directly fixed on the second sleeve 512 in this embodiment, and as shown in fig. 8 and 9, a fixing notch 501 is provided at one end of the shaft core 50 extending into the first sleeve 510, a part of the rotation limiting member 55 is embedded in the fixing notch 501, and another part of the rotation limiting member 55 is located on the moving track of the rotation limiting fitting 56 when the shaft sleeve assembly 51 rotates around the axis a relative to the shaft core 50.

Referring to fig. 11, during assembly, the first shaft sleeve 510 may be firstly sleeved on the shaft core 50, then the torsion component 53 is sleeved on the shaft core 50 by the installation end 540 and is installed in the annular assembly cavity 54, after the torsion component 53 is installed, the rotation limiting member 55 is embedded in the fixing gap 501, finally the installation end 540 is closed by the second shaft sleeve 512, and the rotation limiting member 55 is fixed in the annular assembly cavity 54 by using the fixing gap 501, the first shaft sleeve 510 and the second shaft sleeve 512, and the rotation limiting member 55 is matched with the rotation limiting mating member 56.

In this embodiment, the central angle range corresponding to the rotation limiting member 55 may be 90 degrees, and the central angle range corresponding to the rotation limiting fitting 56 is also 90 degrees. Thus, the actual circle center angle of the rotation limiting member 55 is 180 degrees, and the relative rotation of the shaft core 50 and the shaft sleeve assembly 51 within the range of 180 degrees can be realized.

The rotating module 5 in this embodiment may further include a core connecting member 57 and a sleeve connecting member 58, the core 50 is provided with a core locking end 502 at a side facing away from the sleeve assembly 51, and the second sleeve 512 is provided with a sleeve locking end 513 at a side facing away from the first sleeve 510. The spindle connector 57 is removably coupled to the spindle locking end 502 by threads, pins, etc., and the sleeve connector 58 is also removably coupled to the sleeve locking end 513.

As shown in fig. 12 and 13, when two lamp poles 2 are rotatably connected, the axial locking end 502 can penetrate into the interior of one lamp pole 2 from the side wall of the connecting end 20 of the lamp pole 2, and then is locked with the axial locking end 502 from the interior of the lamp pole 2 through the axial connecting piece 57, so as to fixedly connect the axial 50 with the lamp pole 2. Similarly, the bushing locking end 513 is inserted into the interior of the lamp post 2 from the side wall of the connecting end 20 of the adjacent lamp post 2, and then is locked with the bushing locking end 513 from the interior of the lamp post 2 through the bushing connecting member 58, so as to fixedly connect the bushing assembly 51 to the lamp post 2.

In order to keep the lamp post 2 fixed relative to the shaft core 50 or the shaft sleeve assembly 51 without relative rotation, the shaft core locking end 502 and the shaft sleeve locking end 513 may be designed with non-circular cross-section, such as a runway type. Meanwhile, a connecting hole 21 with a corresponding shape is arranged on the side wall of the connecting end 20 of the lamp post 2. When the shaft core locking end 502 or the shaft sleeve locking end 513 passes through the connecting hole 21, the hole is not circular, so that the relative rotation between the lamp post 2 and the connected shaft core 50 or the shaft sleeve assembly 51 can be avoided. Further, the cross-sectional profiles of the core locking end 502 and the sleeve locking end 513 may be designed to have a shape of a partially circumscribed circular arc, such as a race type, so that threads may be provided on the core locking end 502 and the sleeve locking end 513, so that the core connecting member 57 and the sleeve connecting member 58 are still connected to the core locking end 502 and the sleeve locking end 513 through the threads, thereby reducing the difficulty of assembly.

For the sake of aesthetic appearance, each lamp post 2 may be provided with an end cap 22, and after the connection between the rotating module 5 and the lamp post 2 is completed, the end of each connecting end 20 is closed by one end cap 22.

Referring to fig. 13, when a product is assembled or sold for sale, the lamp post 2, the rotating module 5 and the electric wire (not shown in the figure) can be assembled into an integrated structure as a table lamp accessory, and after a consumer purchases the table lamp accessory, the lamp post 2 at the outermost end, the lamp holder 1 and the lamp holder 3 are only required to be assembled and connected, so that the table lamp can be upgraded or maintained.

To sum up, the desk lamp that this application embodiment provided has be convenient for fold, small in size, packaging cost is low, the lamp holder control range is wide, the gesture stability is good, adjust a great deal of advantages such as nimble, the assembly is simple and convenient.

The above-mentioned embodiments, which further illustrate the objects, technical solutions and advantages of the present application, should be understood that the above-mentioned embodiments are only examples of the present application and should not be construed as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. A rotary connection module is characterized by comprising an installation base body, a rotary folding piece, a rotary seat and an elastic clamping component;

the rotating seat is rotatably connected with the mounting base body and can enable the rotating seat to rotate relative to the mounting base body around a first axis, the rotating folding piece extends along a straight line and is provided with a rotating connecting end and an external connecting end, and the rotating connecting end is rotatably connected with the rotating seat and can enable the rotating folding piece to rotate relative to the rotating seat around a second axis perpendicular to the first axis;

rotate the last edge of connecting end the circumference of second axis is provided with a plurality of screens portion, elasticity screens subassembly sets up on the roating seat, elasticity screens subassembly can be under the circumstances that the external force that receives is less than the elastic force with screens portion cooperation joint makes rotate the folded piece for the roating seat is fixed.

2. The swivelling joint module of claim 1, wherein the swivel link end is provided with the detent within 90 degrees of the second axis in the circumferential direction, and the swivel flap is in an extended position along the first axis when the resilient detent assembly is snap-fitted to the detent at the outermost position.

3. The swivelling coupling module of claim 2, wherein the resilient detent assembly is disposed along the first axis.

4. The module of claim 3, wherein the retaining portion is a retaining hole, and the resilient retaining assembly comprises a pin and a resilient member, the resilient member providing a resilient force to the pin to extend the pin into the retaining hole.

5. The rotary connection module according to any one of claims 1 to 4, further comprising a torsion member and a compression member, wherein the compression member is fixedly connected with the rotary base, and the torsion member and the mounting base are located between the rotary base and the compression member and compressed by the rotary base and the compression member.

6. The rotary connection module of claim 5, further comprising a spacer disposed on a side of the mounting base facing away from the rotary base and held stationary relative to the mounting base in a circumferential direction of the first axis, wherein the torsion member is disposed between the spacer and the compression member.

7. The module of claim 5, further comprising a rotation limiting member and a rotation limiting mating member, wherein the rotation limiting member is fixedly connected to the rotation base, the rotation limiting mating member is fixedly connected to the mounting base, and the rotation limiting member and the rotation limiting mating member cooperate to limit the rotation angle of the rotation base.

8. The rotating connection module of claim 7, wherein the rotation limiting element is a circumferential protrusion disposed on the pressing element, and the rotation limiting mating element is a limiting protrusion disposed on a side of the mounting base body facing away from the rotating base, and the limiting protrusion is located on a moving track of the circumferential protrusion rotating with the rotating base.

9. The swivelling coupling module of claim 8, wherein the circumferential projection has a central angle of 90 degrees and the retention projection has a central angle of 90 degrees.

10. A desk lamp accessory, comprising the rotary connection module as claimed in any one of claims 1 to 9, and further comprising a lamp cap or a lamp holder, wherein the lamp cap or the lamp holder is fixed to the mounting base.

11. The desk lamp accessory of claim 10,

the lamp cap comprises a lamp cap shell, and the mounting base body is integrated on the lamp cap shell;

or

The lamp holder comprises a lamp holder housing, and the mounting base is integrated in the lamp holder housing.

12. A desk lamp comprising a lamp post and a desk lamp accessory as claimed in claim 10 or 11, said outer end being connected to said lamp post.

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