A folding table lamp

Abstract

This utility model discloses a folding desk lamp, including a base; a connecting rod, including a first connecting rod and a second connecting rod, one end of the first connecting rod being movably connected to the base, and the other end of the first connecting rod being movably connected to the second connecting rod, wherein the mating end face of the first connecting rod or the second connecting rod is provided with at least one protrusion, and when the first connecting rod and the second connecting rod move relative to each other, the protrusion abuts against the mating end face of the first connecting rod or the second connecting rod; and a lamp holder, movably connected to the second connecting rod. This utility model adds a protrusion to the mating end that moves for a long time. When the desk lamp is in motion, the protrusion abuts against the mating end face of the first connecting rod or the second connecting rod, providing a force to it, making the connection between the first connecting rod and the second connecting rod more stable in the unfolded state of the desk lamp, thereby improving the stability and durability of the folding desk lamp.

Description

Technical Field

[0001] This utility model relates to the field of folding table lamp technology, specifically to a folding table lamp with a positioning structure at the mating end. Background Technology

[0002] A foldable desk lamp includes a lamp head assembly, a bracket, and a base. The lamp head assembly is rotatably connected to one end of the bracket, and the other end of the bracket is rotatably connected to the base via a rotating component. The foldable desk lamp further includes a washer comprising an annular washer and an annular first fitting portion. The first fitting portion has a circular notch and is fixed to the inner ring of the annular washer. The rotating component includes a screw, a nut, and a connector. The bracket is pivotally connected to the connector, the washer is fitted onto the connector, the screw passes sequentially through the washer and the connector, and the nut secures the screw from one side of the bracket.

[0003] In existing folding desk lamps, the friction caused by repeated opening and closing of the connecting rod can generate high stress or localized heating on the contact surfaces, leading to material deformation. Long-term friction can wear down the contact surfaces, causing the gap between the surfaces to widen, which in turn can lead to loosening or axis misalignment, exacerbating the deformation of the desk lamp. This results in the desk lamp being unable to be stable in the unfolded state, as well as the lamp base.

[0004] Therefore, a new folding desk lamp needs to be designed to overcome the above problems. Utility Model Content

[0005] To address the problems encountered in the prior art, this utility model provides a folding table lamp with a protrusion at the mating end.

[0006] This utility model discloses a folding table lamp, comprising:

[0007] A base; a connecting rod, including a first connecting rod and a second connecting rod, one end of the first connecting rod being movably connected to the base, and the other end of the first connecting rod being movably connected to the second connecting rod, wherein the mating end face of the first connecting rod or the second connecting rod is provided with at least one protrusion, and when the first connecting rod and the second connecting rod move relative to each other, the protrusion abuts against the mating end face of the first connecting rod or the second connecting rod; a lamp holder, movably connected to the second connecting rod.

[0008] Furthermore, the mating end face of the first connecting rod or the second connecting rod is provided with a recess, which mates with the convex bulge.

[0009] Furthermore, the first connecting rod includes a protrusion facing the second connecting rod, the second connecting rod has a receiving hole for receiving the protrusion, the protrusion is provided on the protrusion, and the recess is provided on the wall of the receiving hole.

[0010] Furthermore, the first connecting rod includes a reinforcing portion disposed around the protrusion, the reinforcing portion contacting the end face of the second connecting rod in the left-right direction, and the end face of the second connecting rod being disposed around the receiving hole.

[0011] Furthermore, there is a certain gap between the reinforcing part and the protruding part, and the reinforcing part provides elastic deformation space during the relative movement of the first connecting rod and the second connecting rod.

[0012] Furthermore, when the convex hull is received in one of the recesses, the table lamp is in a folded or unfolded state.

[0013] Furthermore, when the convex hull moves from one of the recesses to the other, the rotation angle of the first connecting rod or the second connecting rod is 180°.

[0014] On the other hand, this utility model also proposes a folding table lamp, comprising:

[0015] Base;

[0016] A connecting rod, one end of which is movably connected to the base;

[0017] The lamp holder is movably connected to the other end of the connecting rod, wherein the mating end face of the connecting rod or the lamp holder is provided with at least one protrusion, and when the connecting rod and the lamp holder move relative to each other, the protrusion abuts against the mating end face of the connecting rod or the lamp holder.

[0018] Furthermore, the mating end face of the connecting rod or the lamp holder is provided with a recess, which mates with the protrusion.

[0019] Furthermore, the connecting rod includes a protrusion facing the lamp holder, the lamp holder is provided with a third connector connected to the connecting rod, the third connector is provided with a receiving hole for receiving the protrusion, the protrusion is provided on the protrusion, and the recess is provided on the wall of the receiving hole.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention features at least one protrusion on the mating end face of the first or second connecting rod. When the first and second connecting rods move relative to each other, the protrusion abuts against the mating end face of the first or second connecting rod. Compared to existing folding desk lamps, this invention adds a protrusion to the mating end of the lamp that is in constant motion. When the lamp is in motion, the protrusion abuts against the mating end face of the first or second connecting rod, providing force to it. This makes the connection between the first and second connecting rods more stable when the lamp is unfolded, improving the stability and durability of the folding desk lamp. Secondly, when the lamp is in motion, a certain distance is formed between the outer peripheral surfaces of adjacent protrusions and the inner peripheral surfaces of adjacent concave surfaces. The original contact surface is completely in contact with the contact surface, but now only the protruding contour of the protrusion contacts the contact surface. This reduces the contact area between the contact surfaces of the two connecting rods, weakening the wear on the contact surfaces of the first and second connecting rods and preventing further widening of the mating gap, which could lead to loosening or deformation. This further improves the stability and durability of the folding desk lamp. Attached Figure Description

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure of a folding table lamp proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a folding table lamp connecting rod proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first connecting rod of a folding table lamp proposed in this utility model;

[0026] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 for Figure 2 The main view;

[0028] Figure 6 for Figure 5 A sectional view along the BB section line;

[0029] Figure 7 This is a schematic diagram showing the connection between the first connecting rod and the base of a folding table lamp proposed in this utility model.

[0030] Figure 8 This is a schematic diagram of the structure of the second connecting rod of a folding table lamp proposed in this utility model;

[0031] Figure 9 for Figure 8A magnified view of a section at point C;

[0032] Figure 10 for Figure 8 3D exploded view;

[0033] Figure 11 This is a schematic diagram showing the connection of a fastener and locking component for a folding table lamp proposed in this utility model.

[0034] Figure 12 This is a partial enlarged view of the first connecting rod of a folding table lamp proposed in this utility model;

[0035] Figure 13 This is a schematic diagram showing the connection between the second connecting rod and the lamp holder of a folding table lamp proposed in this utility model.

[0036] Figure 14 This is a structural diagram of a folding table lamp proposed in this utility model when it is in a folded state.

[0037] Figure 15 This is a partially enlarged view of the mating end of the first connecting rod and the second connecting rod proposed in this utility model.

[0038] In the picture:

[0039] 1-Base; 11-First connector; 12-Second connector; 2-Connecting rod; 21-First connecting rod; 211-Through hole; 2111-Positioning groove; 212-Protrusion; 2121-Protrusion; 213-Reinforcing part; 22-Second connecting rod; 221-Receiving hole; 2211-Recess; 222-Imitation straight groove; 2221-Guide block; 3-Lamp holder; 31-Third connector; 4-Fastener; 5-Locking part; 51-Positioning part; D-Gap between reinforcing part and protrusion; E-Mating end face of first connecting rod; F-Mating end face of second connecting rod. Detailed Implementation

[0040] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0041] like Figures 1 to 15 As shown, this utility model discloses a folding table lamp, including: a base 1, a connecting rod 2 movably connected to the base 1, the connecting rod 2 including two first connecting rods 21 and a second connecting rod 22, and a lamp holder 3 movably connected to the connecting rod 2.

[0042] The base 1 is located at the bottom of the desk lamp and provides support for the desk lamp; the base 1 is a columnar structure, and the base 1 is provided with a first connector 11 and a second connector 12, which has a built-in power supply (not shown), and the power supply is electrically connected to the lamp holder 3.

[0043] See Figure 3 The first connecting rod 21 has a protruding portion 212 at its top end facing the second connecting rod 22. A convex bulge 2121 is provided on the protruding portion 212 and extends away from the protruding portion 212. The first connecting rod 21 has a reinforcing portion 213 around the protruding portion 212, and there is a certain gap between the reinforcing portion 213 and the protruding portion 212. Figure 4 Point D shown represents the gap.

[0044] like Figure 7 As shown, the bottom end of the first connecting rod 21 is movably connected to the base 1. The base 1 and the first connecting rod 21 are rotatably connected. The bottom ends of the two first connecting rods 21 are respectively pivotally connected to the first connecting member 11 and the second connecting member 12. Fasteners 4 pass through the first connecting member 11, the left first connecting rod, the right first connecting rod, and the second connecting member 12 in sequence, and are finally locked by locking member 5. Gaskets are provided between the fasteners 4 and the first connecting member 11, and between the locking member 5 and the second connecting member 12. The inner sides of the two first connecting rods 21 are fixed in position by nuts.

[0045] See Figures 8-10 The second connecting rod 22 has a receiving hole 221 at its bottom end to receive the protrusion 212. The end face of the second connecting rod (the end connected to the first connecting rod) is arranged around the receiving hole. The wall of the receiving hole 221 has a recess 2211 that matches the protrusion 2121. The receiving hole 221 has a positioning groove 222. The groove 222 is arranged laterally in the wall of the receiving hole 221. The outer wall of the groove 222 and the wall of the receiving hole 221 form a groove. After the second connecting rod 22 is assembled, the guide block 2221 is completely received in the groove 222. The top end of the second connecting rod 22 has a concave fork-shaped structure, and its two forks have coaxial through holes.

[0046] The top end of the first connecting rod 21 and the bottom end of the second connecting rod 22 are movably connected by a rotational connection. The mating end face of either the first connecting rod 21 or the second connecting rod 22 is provided with at least one protrusion 2121. When the first connecting rod 21 and the second connecting rod 22 move relative to each other, the protrusion 2121 abuts against the mating end face of either the first connecting rod 21 or the second connecting rod 22. Correspondingly, the mating end face of either the first connecting rod 21 or the second connecting rod 22 is provided with a recess 2211, which mates with the protrusion 2121 (e.g., ...). Figure 5 and Figure 6 As shown, Figure 5 and Figure 6(This refers to the state where the convex hull 2121 is received within the recess 2211). The mating end faces of the first connecting rod 21 and the second connecting rod 22 are further described below:

[0047] 1. When the convex bulge 2121 is provided on the outer peripheral surface of the protruding portion 212, the mating end face of the first connecting rod 21 is the outer peripheral surface of the protruding portion 212, the mating end face of the second connecting rod 22 is the wall of the receiving hole 221, and the convex bulge 2121 abuts against the wall of the hole;

[0048] 2. The convex bulge 2121 is provided on the contact surface of the connecting end of the first connecting rod 21 or the second connecting rod 22, including the following two cases:

[0049] (1) See Figure 15 The convex bulge 2121 is provided on the contact surface of the first connecting rod 21 at the end connected to the second connecting rod 22, i.e., surface E. The concave part 2211 is provided on the contact surface of the second connecting rod 22 at the end connected to the first connecting rod 21, i.e., surface F. The mating end face of the first connecting rod 21 is surface E, the mating end face of the second connecting rod 22 is surface F, and the convex bulge 2121 abuts against surface F.

[0050] (2) See Figure 15 The convex bulge 2121 is provided on the contact surface of the second connecting rod 22 at the end connected to the first connecting rod 21, i.e., surface F. The concave part 2211 is provided on the contact surface of the first connecting rod 21 at the end connected to the second connecting rod 22, i.e., surface E. The mating end face of the first connecting rod 21 is surface E, the mating end of the second connecting rod 22 is surface F, and the convex bulge 2121 abuts against surface E.

[0051] The reinforcing part 213 is in contact with the end face (F face) of the second connecting rod 22, and the gap between the protruding part 212 and the reinforcing part 213 is to provide elastic deformation space during the relative movement of the first connecting rod 21 and the second connecting rod 22.

[0052] like Figure 11 and Figure 12 As shown, the first connecting rod 21 and the second connecting rod 22 are fixed by fasteners 4 and locking members 5. The fastener 4 passes through the through hole 211 of the protrusion 212 and the receiving hole 221 of the second connecting member 12 in sequence. The end of the fastener 4 is locked by the locking member 5. The locking member 5 is provided with a positioning member 51, which is confined in the positioning groove 2111 of the through hole 211. The fastener 4 and the locking member 5 are connected by threads. The fastener 4 is provided with external threads (not shown in the figure), and the connecting hole of the locking member 5 is provided with internal threads.

[0053] like Figure 4 and Figure 9As shown, the protruding part 212 is symmetrically provided with two protrusions 2121, and the hole wall is correspondingly provided with two recesses 2211.

[0054] When the convex bulge 2121 is received in one of the recesses 2211, the table lamp is in a folded state (e.g., Figure 14 (As shown) or in the unfolded state. When the convex bulge 2121 moves from one of the recesses 2211 to another, the rotation angle of the first connecting rod 21 or the second connecting rod 22 is 180°. When the convex bulge 2121 is received in the recess 2211, the included angle between the first connecting rod 21 and the second connecting rod 22 is 0° or 180°; when the convex bulge 2121 and the recess 2211 are misaligned, the included angle between the first connecting rod 21 and the second connecting rod 22 ranges from 0° to 180° or from 180° to 360°.

[0055] like Figure 13 As shown, the lamp holder 3 is located at the top of the desk lamp and has a built-in light-emitting component. The bottom of the lamp holder 3 is provided with a third connector 31 that is movably connected to the second connecting rod 22.

[0056] The lamp holder 3 and the second connecting rod 22 are connected by a rotational connection, and the top end of the second connecting rod 22 is pivotally connected to the third connecting member 31; see Figure 13 The third connector 31 matches the top end of the second connecting rod 22, and the pivot passes through the second connecting rod 22 and the third connector 31 to form a fixed structure.

[0057] On the other hand, this embodiment also provides a folding table lamp, including:

[0058] Base 1;

[0059] Connecting rod 2, one end of which is movably connected to base 1;

[0060] The lamp holder 3 is movably connected to the other end of the connecting rod 2. The mating end face of the connecting rod 2 or the lamp holder 3 is provided with at least one protrusion 2121. When the connecting rod 2 and the lamp holder 3 move relative to each other, the protrusion 2121 abuts against the mating end face of the connecting rod 2 or the lamp holder 3.

[0061] The connecting rod 2 or the lamp holder 3 has a recess 2211 on its mating end face, and the recess 2211 mates with the protrusion 2121;

[0062] The connecting rod 2 includes a protruding portion 212 facing the lamp holder 3. The lamp holder 3 is provided with a third connecting member 31 connected to the connecting rod 2. The third connecting member 31 is provided with a receiving hole 221 for receiving the protruding portion 212. The protrusion 2121 is provided on the protruding portion 212, and the recess 2211 is provided on the hole wall of the receiving hole 221.

[0063] In summary, the folding desk lamp of this utility model has the following beneficial effects:

[0064] (1) At least one protrusion 2121 is provided on the mating end face of the first connecting rod 21 or the second connecting rod 22. When the first connecting rod 21 and the second connecting rod 22 move relative to each other, the protrusion 2121 abuts against the mating end face of the first connecting rod 21 or the second connecting rod 22. The present invention adds a protrusion 2121 to the mating end of the table lamp that moves for a long time. When the table lamp moves, the protrusion 2121 abuts against the mating end face of the first connecting rod 21 or the second connecting rod 22 and provides a force to it, so that the connection between the first connecting rod 21 and the second connecting rod 22 is more stable when the table lamp is unfolded, thereby improving the stability and durability of the folding table lamp.

[0065] (2) A recess 2211 is provided on the mating end face of the first connecting rod 21 or the second connecting rod 22, and the recess 2211 mates with the protrusion 2121; the present invention provides a recess 2211 that mates with the protrusion 2121, so that the table lamp has a locking function in the folded state and the unfolded state. When the table lamp is in the folded state and the vertical unfolded state, the protrusion 2121 is housed in the recess 2211, which makes it convenient for the user to judge the unfolded state of the table lamp when directly opening the table lamp.

[0066] (3) The first connecting rod 21 includes a protrusion 212 facing the second connecting rod 22. The second connecting rod 22 is provided with a receiving hole 221 for receiving the protrusion 212. The protrusion 2121 is provided on the protrusion 212, and the recess 2211 is provided on the hole wall of the receiving hole 221. The friction concentration area between the first connecting rod 21 and the second connecting rod 22 is transferred from the side wall of the two connecting rods to the protrusion 212, which weakens the local temperature rise caused by frictional heat generation in the fit gap between the first connecting rod 21 and the second connecting rod 22. At the same time, the protrusion 212 extends into the second connecting rod 22 to form a limit, restricting the coaxial rotation of the first connecting rod 21 and the second connecting rod 22. This can ensure smooth rotation and prevent radial displacement.

[0067] (4) The first connecting rod 21 includes a reinforcing part 213 surrounding the protrusion 212. The reinforcing part 213 contacts the end face of the second connecting rod 22 in the left-right direction. The end face of the second connecting rod 22 surrounds the receiving hole 221. The reinforcing part 213 enhances the structural stability of the first connecting rod 21.

[0068] (5) A certain gap exists between the reinforcing part 213 and the protruding part 212. The reinforcing part 213 provides elastic deformation space during the relative movement of the first connecting rod 21 and the second connecting rod 22. During rotation, the protrusion 2121 on the protruding part 212 abuts against the mating end face. The protruding part 212 needs to have a certain elasticity and deformation space so that it can absorb mechanical stress through elastic deformation during the movement, thereby improving the durability and reliability of the first connecting member 11 and the second connecting member 12 and extending the service life of the components.

[0069] (6) When the protrusion 2121 is received in one of the recesses 2211, the table lamp is in a folded state or an unfolded state. The switching of the table lamp's state facilitates the user's storage. In the folded state, the second connecting rod 22 is received in the first connecting rod 21, and the two are close to the base 1, saving space. On the other hand, the unfolded state when the protrusion is received in the recess is a vertical unfolded state. The protrusion can effectively resist the lateral torque of the lamp arm, prevent accidental tilting or drooping, keep the lamp arm stable in the vertical state, avoid the lamp head from shifting due to external forces (such as slight touch or table vibration), and ensure that the lighting direction is constant.

[0070] (7) When the convex 2121 moves from one of the recesses 2211 to another, the rotation angle of the first connecting rod 21 or the second connecting rod 22 is 180°. The symmetrical arrangement of the convex 2121 and the recesses 2211 makes a clear "click" sound or resistance change when the convex 2121 slides over the edge of the recess 2211, providing clear confirmation of state switching. Users only need to rotate half a circle (180°) to switch states (such as from storage to use), without multiple adjustments, making the operation simple and efficient.

[0071] (8) By providing a positioning groove 222 in the receiving hole 221, the guide block 2221 is positioned in the groove 222. This not only provides positioning during the installation of the second connecting rod 22, but also helps to share the local stress caused by overheating when the lamp is working or heated by friction, preventing the lamp from deforming or protruding and avoiding scratching the human body during use.

[0072] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. A folding table lamp, characterized in that, include: Base; A connecting rod includes a first connecting rod and a second connecting rod. One end of the first connecting rod is movably connected to the base, and the other end of the first connecting rod is movably connected to the second connecting rod. The mating end face of the first connecting rod or the second connecting rod is provided with at least one protrusion. When the first connecting rod and the second connecting rod move relative to each other, the protrusion abuts against the mating end face of the first connecting rod or the second connecting rod. The lamp holder is movably connected to the second connecting rod.

2. A folding table lamp according to claim 1, characterized in that, The mating end face of the first connecting rod or the second connecting rod is provided with a recess, which mates with the convex bulge.

3. A folding table lamp according to claim 2, characterized in that, The first connecting rod includes a protrusion facing the second connecting rod, the second connecting rod has a receiving hole for receiving the protrusion, the protrusion is provided on the protrusion, and the recess is provided on the wall of the receiving hole.

4. A folding table lamp according to claim 3, characterized in that, The first connecting rod includes a reinforcing portion disposed around the protrusion, the reinforcing portion contacting the end face of the second connecting rod in the left-right direction, and the end face of the second connecting rod being disposed around the receiving hole.

5. A folding table lamp according to claim 4, characterized in that, There is a certain gap between the reinforcing part and the protruding part, and the reinforcing part provides elastic deformation space during the relative movement of the first connecting rod and the second connecting rod.

6. A folding table lamp according to claim 2, characterized in that, When the convex hull is received in one of the recesses, the table lamp is in a folded or unfolded state.

7. A folding table lamp according to claim 6, characterized in that, When the convex hull moves from one of the recesses to the other, the rotation angle of the first connecting rod or the second connecting rod is 180°.

8. A folding table lamp, characterized in that, include: Base; A connecting rod, one end of which is movably connected to the base; The lamp holder is movably connected to the other end of the connecting rod, wherein the mating end face of the connecting rod or the lamp holder is provided with at least one protrusion, and when the connecting rod and the lamp holder move relative to each other, the protrusion abuts against the mating end face of the connecting rod or the lamp holder.

9. A folding table lamp according to claim 8, characterized in that, The connecting rod or the lamp holder has a recessed end face that engages with the protrusion.

10. A folding table lamp according to claim 9, characterized in that, The connecting rod includes a protrusion facing the lamp holder. The lamp holder is provided with a third connector that connects to the connecting rod. The third connector is provided with a receiving hole for receiving the protrusion. The protrusion is located on the protrusion, and the recess is located on the wall of the receiving hole.

Images