Lighting device

Abstract

The utility model relates to a lighting device convenient to store, which comprises a supporting rod, a movable rod and a lamp holder which are connected in sequence, the lamp holder moves or swings relative to the supporting rod along with the movable rod, not only can the lighting direction of the lamp holder be changed, but also the whole lighting device can be folded and stored. The lamp holder is electrically connected to the main board in the supporting rod through the electric lead so as to achieve power supply, the electric lead sequentially passes through the movable rod and the supporting rod, and the elastic piece is fixed between the supporting rod and the movable rod and arranged on the electric lead in a sleeving mode. In the process that the movable rod moves or swings relative to the supporting rod, the electric lead is pulled out by the redundant length at the connecting position of the movable rod and the supporting rod, and the elastic piece is also stretched to accumulate elastic force. And in the resetting process of the movable rod, the elastic piece shrinks, and meanwhile, the conductive wire is guided to retract into the movable rod or the supporting rod. Meanwhile, when the elastic piece is arranged outside the conductor wire in a sleeving mode, the effect of preventing other parts of the conductor wire from being scratched and damaged is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a lighting device. Background Art

[0002] Generally, as a lighting appliance, a lighting device can switch between a folded state and an unfolded state for its multiple support legs. In the folded state, a user can hold the lighting device for lighting use. In the unfolded state, the user can place the lighting device on a table for lighting use. However, in a traditional lighting device with a conducting wire, the lighting lamp is electrically connected to a power source through the conducting wire. The conducting wire is hidden inside the shell layer of the lighting device. Generally, the lighting lamp and the power source are respectively placed in different components of the lighting device. The relative movement (rotation, telescoping, etc.) between different components enables the entire lighting device to complete the adjustment of the lighting angle or folding and storage. The conducting wire is inserted through the movable positions between different components. During the relative movement of the corresponding components, the conducting wire will also be stretched accordingly. When the two corresponding components move relatively in the opposite direction to the initial state, the conducting wire cannot return to its original position. As the number of cyclic movements increases, the length of the conducting wire stretched at the connection position becomes longer and accumulates and winds, resulting in mutual abrasion of the conducting wires. In particular, the conducting wires at the connection are exposed and can also be corroded by the external environment, causing poor electrical contact and short service life and other defects. Summary of the Utility Model

[0003] The utility model aims to provide a lighting device to solve the technical problems that in a traditional lighting device with a conducting wire, the conducting wire is stretched and cannot return to its original position at the connection position between different components, resulting in poor electrical contact and short service life and other defects.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A lighting device, comprising:

[0006] A support rod, having an installation end and a support end opposite to each other along its axial direction, and the support rod is provided with a first installation cavity;

[0007] A movable rod, having a first connection end and a second connection end opposite to each other along its axial direction, the first connection end is movably connected to the installation end, and the movable rod is provided with a second installation cavity;

[0008] A main board, arranged in the first installation cavity;

[0009] A lamp head, including a lamp housing and a light source, the lamp housing is connected to the second connection end;

[0010] An elastic member, which is a telescopic spring or an elastic rubber sleeve, the elastic member has a first end and a second end opposite to each other, the first end is fixed to the installation end, and the second end is fixed to the first connection end;

[0011] The conductive wire enters the second installation cavity from the first installation cavity through the first end and the second end in sequence. The extension trajectory of the conductive wire in the elastic member adapts to the extension trajectory of the elastic member. The two ends of the conductive wire in the length direction are electrically connected to the main board and the light source respectively;

[0012] The relative movement between the first connection end and the installation end causes the first end to approach or move away from the second end; when the first end moves away from the second end, the elastic member is stretched and stores the elastic force for reset. More parts of the conductive wire are guided between the first end and the second end; when the first end approaches the second end, relying on the reset elastic force released by the elastic member, the conductive wire in the elastic member is partially guided into the first installation cavity and / or the second installation cavity.

[0013] In one embodiment, the movable rod is rotatably connected to the outside of the support rod. The first connection end swings in a pitching manner relative to the installation end along the axial direction of the support rod. The conductive wire extends out of the first installation cavity to the outside and then extends into the second installation cavity. The part of the conductive wire outside the first installation cavity and the second installation cavity is sleeved by the elastic member.

[0014] In one embodiment, the first connection end is provided with a first pipe groove. The first pipe groove communicates the second installation cavity with the outside. The second end is fixed to the end of the first pipe groove close to the second installation cavity. The first pipe groove is for the elastic member to pass through.

[0015] In one embodiment, the axial direction of the first pipe groove is parallel to the axial direction of the movable rod.

[0016] In one embodiment, the position point where the first end is located, the position point where the second end is located and the outlet position point of the first pipe groove are coplanar.

[0017] In one embodiment, the first connection end is provided with a first guide rail communicating with the first pipe groove. The first guide rail extends along the axial direction of the movable rod from the outlet of the first pipe groove to the end edge of the first connection end, and then the first guide rail continues to bend and extend to the end face of the first connection end. During the rotation of the first connection end, the part of the elastic member extending out of the first pipe groove is limited in the first guide rail.

[0018] In one embodiment, the depth dimension of the first guide rail is not less than the radial dimension of the elastic member, so that the part of the elastic member limited in the first guide rail does not protrude from the wall surface of the second connection end.

[0019] In one embodiment, a second pipe groove is formed in the installation end. The second pipe groove communicates the first installation cavity with the outside. The first end is fixed to the end of the second pipe groove close to the first installation cavity. The elastic member passes through the second pipe groove.

[0020] In one embodiment, a second guide rail communicating with the second pipe groove is formed in the installation end. The second guide rail extends axially along the movable rod from the outlet of the second pipe groove to the end edge of the installation end, and then the second guide rail continues to bend and extend to the end face of the installation end. During the rotation of the installation end, a part of the structure of the elastic member extending out of the second pipe groove is limited in the second guide rail.

[0021] In one embodiment, the rotating end can rotate relative to the installation end until the movable rod and the support rod are arranged side by side and closed. At this time, the lamp housing is buckled to the support end.

[0022] It can be seen from the above technical solutions that the embodiments of the present utility model have at least the following advantages and positive effects:

[0023] The embodiment of the present utility model provides a lighting device. During the process that the movable rod moves relative to the support rod until the first end and the second end are relatively far away from each other, an extra length of the conductive wire is pulled out at the connection position of the movable rod and the support rod, and the elastic member is also stretched to accumulate elastic force. During the process that the movable rod moves in the opposite direction to the initial state, the first end and the second end gradually approach each other relatively. At this time, the elastic member contracts, and the length of the conductive wire in the elastic member becomes shorter as the elastic member contracts. The extra conductive wire is guided and squeezed back into the movable rod or the support rod by the elastic force. The elastic member has a proper degree of expansion and contraction, so that the conductive wire will not be damaged due to excessive bending. At the same time, when the elastic member is sleeved outside the conductive wire, it plays a role in preventing other components from scratching and breaking the conductive wire. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0025] Figure 1 It is a schematic structural view of the lighting device in the storage state according to an embodiment of the present utility model;

[0026] Figure 2 For Figure 1 It is a schematic structural view of the lighting device shown after the movable rod is switched to the unfolded state;

[0027] Figure 3 The Figure 2 structural schematic diagram of the support rod of the lighting device shown after being switched to the unfolded state;

[0028] Figure 4 The Figure 3 partial enlarged structural schematic diagram at position A of the lighting device shown;

[0029] Figure 5 The Figure 3 exploded structural schematic diagram of the connection between the movable rod and the support rod shown;

[0030] Figure 6 The is the Figure 1 cross-sectional structural schematic diagram of the lighting device shown in the A-A direction;

[0031] Figure 7 The Figure 6 partial enlarged structural schematic diagram of the cross-sectional view shown;

[0032] Figure 8 The is the Figure 4 cross-sectional structural schematic diagram of the lighting device shown in the B-B direction;

[0033] Figure 9 The Figure 4 structural schematic diagram of another perspective of the partial enlarged view shown;

[0034] Figure 10 The structural schematic diagram of the first connection end in the lighting device.

[0035] The description of the reference numerals is as follows:

[0036] 10. Lighting device; 100. Support rod; 101. Support end; 102. Installation end; 103. First installation cavity; 110. Rod body; 120. Leg; 121. Rotating end; 122. Fixed end; 131. First lug; 132. Second lug; 133. Avoidance area; 200. Movable rod; 201. First connection end; 202. Second connection end; 203. Second installation cavity; 204. Pipe groove; 204a. First pipe groove; 205. Guide rail; 205a. First guide rail; 210. Rotating shaft; 300. Lamp head; 301. Lamp housing; 302. Light source; 400. Battery; 500. Main board; 600. Conductive wire; 700. Elastic member; 701. First end; 702. Second end. Detailed implementation manners

[0037] Typical embodiments embodying the features and advantages of the present utility model will be described in detail in the following description. It should be understood that the present utility model can have various variations in different embodiments, all of which do not depart from the scope of the present utility model, and the descriptions and illustrations therein are essentially for illustrative purposes and not for limiting the present utility model.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0039] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] With reference to Figure 1 and Figure 2 , the present application provides a lighting device 10 that can be switched between an unfolded state and a stored state. In this embodiment, Figure 1 illustrates the lighting device 10 in the stored state. At this time, the lighting device 10 can be held by the user for carrying and provide a lighting function. For example, the user can obtain illumination light by holding the lighting device 10, which is convenient for the user to move at night. At the same time, when the lighting device 10 is in the stored state, the volume and occupied space of the lighting device 10 are small, which is convenient for storage and carrying. Figure 2 illustrates the lighting device 10 in the unfolded state. The lighting device 10 in the unfolded state has a higher lighting height and a larger lighting range at a greater angle. At this time, the user can hold it by hand and provide lighting for a large range of moving space when camping outdoors, or use it as a mobile street lamp or a detection lamp when walking at night, which is not only convenient for guiding the way for lighting but also convenient for the user to observe the surrounding environment. Or, with reference to Figure 3 , in other usage scenarios, the lighting device 10 can be further unfolded into a bracket state to place the lighting device 10 on a flat or uneven support surface to provide a lighting function. For example, when reading a book or using a computer at home at night, appropriate lighting is required to protect the eyes from strong light damage. At this time, the lighting device 10 can be supported on the desktop and used as a table lamp. It should be understood that the lighting device 10 may not necessarily be able to be unfolded intoFigure 3 The bracket state shown only needs to satisfy the lighting device 10 to be able to Figure 1 The folded storage state shown and Figure 2 In addition, if the supporting body of the lighting device 10 is strong enough, the user can also directly Figure 2 The lighting device 10 is shown in the unfolded state supported on a support surface.

[0041] Combined with reference Figure 1 and Figure 2 The lighting device 10 of the present application includes a support rod 100, a movable rod 200 and a lamp head 300 connected in sequence. The movable rod 200 is movably connected to the support rod 100. The lamp head 300 serves as the lighting component of the lighting device 10 to emit lighting light to provide a light source for the user, and the lamp head 300 is connected to the free end of the movable rod 200 (the other end of the movable rod 200 relative to the support rod 100). The movable rod 200 moves relative to the support rod 100, so that the entire lighting device 10 can switch freely between the unfolded state and the folded state. Preferably, the movable rod 200 of this embodiment is rotatably connected to the outside of the support rod 100, and the movable rod 200 pitches and swings relative to the support rod 100 along the axial direction of the support rod 100 until the movable rod 200 and the support rod 100 are brought together side by side to realize the folding and storage of the entire lighting device 10. It should be understood that, in other embodiments, the movable rod 200 rotates relative to the support rod 100 (not pitching and swinging), the movable rod 200 may rotate circumferentially around the support rod 100, or the movable rod 200 may rotate radially around the support rod 100; in addition, in other embodiments, the movable rod 200 can also move relative to the support rod 100, for example, the movable rod 200 is sleeved on the inner or outer side of the support rod 100, and the movable rod 200 moves vertically relative to the support rod 100. That is, in the present application, the movement mode of the movable rod 200 relative to the support rod 100 is not limited. Secondly, in other embodiments, the pitching and swinging angles of the movable rod 200 relative to the support rod 100 are not limited, that is, the movable rod 200 may not necessarily swing to the point where it is side by side with the support rod 100 to achieve the folded state of the lighting device 10. That is, in the present application, whether the lighting device 10 is folded and stored is not limited.

[0042] Specifically, in this embodiment, the support rod 100, as the support main body, has a support end 101 and a mounting end 102 that are opposite to each other along its axis. When the lighting device 10 is in the unfolded state, the support rod 100 can support the lighting device 10 on the support surface; the movable rod 200 has a first connection end 201 and a second connection end 202 that are opposite to each other along its axis, and the first connection end 201 is movably connected to the mounting end 102; the lamp head 300 includes a lamp housing 301 and a light source 302 provided in the lamp housing 301, and the lamp housing 301 protects the light source 302 from being knocked by the outside. Preferably, in this embodiment, the first connection end 201 is rotatably connected to the mounting end 102. When the first connection end 201 rotates relative to the mounting end 102, the included angle between the movable rod 200 and the support rod 100 changes, and the movable rod 200 can be flipped to be juxtaposed and close to the support rod 100. At this time, the movable rod 200 is folded and stored on the side of the support rod 100, so that the lighting device 10 is switched from the unfolded state to the stored state. As Figure 1 shown, when the lighting device 10 is in the stored state, that is, when the movable rod 200 and the support rod 100 are in a juxtaposed and close posture, the lamp housing 301 is buckled to the support end 101 of the support rod 100. Here, buckling means that the two are closely combined, and it can be realized by means of buckles, hooks, adhesives, magnetic attraction, etc.; the lamp housing 301 is buckled to the support end 101, including but not limited to that the lamp housing 301 can buckle the side circumference, edge, bottom of the support end 101.

[0043] More specifically, in this embodiment, with reference to Figure 2 and Figure 3 , the support rod 100 includes a connected rod body 110 and multiple legs 120. The opposite ends of the rod body 110 respectively correspond to the support end 101 and the mounting end 102 mentioned above, and the multiple legs 120 are used as support components. Each leg 120 has a relative rotating end 121 and a fixed end 122. The rotating end 121 is rotatably connected to the support end 101. When the rotating end 121 rotates outward relative to the support end 101 towards the outside of the rod body 110, it simultaneously drives the multiple fixed ends 122 to switch from the state of being close to each other to the state of being far away from each other for support. The multiple legs 120 are switched from the closed state ( Figure 2 shown) to the support state ( Figure 3 shown). When the multiple legs 120 are in the closed state, the multiple legs 120 are juxtaposed against the side circumference of the rod body 110 and surround it. In this state, the user can also continue to operate to flip and fold the movable rod 200 to the posture where the movable rod 200 is juxtaposed and close to the support rod 100, that is, the stored state of the lighting device 10 as shown in Figure 1 . The user can hold the support rod 100 and the movable rod 200 at the same time and use the lighting device 10 as a flashlight for lighting.

[0044] It should be understood that, first, multiple legs 120 enhance the supporting function of the support rod 100. In other embodiments, when the radial dimension of the support rod 100 is large enough, the end face area of the support end 101 is large and flat. In this case, the support rod 100 can directly support on the support surface through the end face of the support end 101, and there is no need to additionally provide multiple legs 120 to enable the support rod 100 to achieve the supporting function of the support frame. Second, the unfolding manner of the multiple legs 120 can be that the legs 120 in this embodiment unfold by turning outwards relative to the outer wall of the rod body 110. In other embodiments, the multiple legs 120 can also rotate and unfold along the circumferential direction of the rod body 110, as long as it is satisfied that the multiple legs 120 can be switched between the folded state and the supporting state.

[0045] Preferably, in this embodiment, with reference to Figure 4 and Figure 5 , the movable rod 200 rotates relative to the support rod 100 around the rotation axis 210. The first lug 131 and the second lug 132 which are spaced apart and opposite protrude from the side circumference of the mounting end 102. The rotation axis 210 sequentially penetrates through the first lug 131, the first connection end 201 and the second lug 132 along its axial direction to realize the rotational connection between the first connection end 201 and the mounting end 102. An avoidance area 133 is formed between the first lug 131 and the second lug 132. When the first connection end 201 rotates relative to the mounting end 102, the avoidance area 133 is for the first connection end 201 to flip and move. Here, for the convenience of connection, in this embodiment, one end of the first connection end 201 is in a circular tube shape, and the other end of the first connection end 201 is flat and provided with a transfer hole for the rotation axis 210 to penetrate. It should be understood that in other embodiments, the shape of the first connection end 201 is not limited. The first connection end 201 is rotationally connected to the first lug 131 and the second lug 132 through the rotation axis 210 to realize the rotational connection between the first connection end 201 and the mounting end 102. In other embodiments, first, the part of the first connection end 201 provided with the transfer hole can be connected to the mounting end 102. The first lug 131 and the second lug 132 can protrude and be spaced apart on the side circumference of the first connection end 201. The rotation axis 210 can still sequentially penetrate through the first lug 131, the transfer hole and the second lug 132 along its axial direction to realize the rotational connection between the first connection end 201 and the mounting end 102. Second, in other embodiments, even if the first lug 131, the transfer hole and the second lug 132 are not provided, by grooving and opening holes in the mounting end 102 or the first connection end 201 such that the rotation axis 210 penetrates through the first connection end 201 and the mounting end 102, the rotational connection between the first connection end 201 and the mounting end 102 can also be realized, and the movable rod 20 refers to the support rod 100 to flip and swing. That is, in this application, the rotational connection manner between the first connection end 201 and the mounting end 102 is not limited.

[0046] ReferenceFigure 6 , in this embodiment, the lighting device 10 further includes a battery 400, a main board 500, and a conducting wire 600. The support rod 100 is provided with a first installation cavity 103, and the movable rod 200 is provided with a second installation cavity 203. The battery 400 is electrically connected to the main board 500, and both are accommodated in the first installation cavity 103. The two ends of the conducting wire 600 are electrically connected to the main board 500 and the light source 302, and the conducting wire 600 is accommodated in the first installation cavity 103 and the second installation cavity 203. Therefore, the light source 302, the conducting wire 600, the main board 500, and the battery 400 are electrically connected in sequence, realizing that the battery 400 provides power for the light source 302. In other embodiments of the present application, the lighting device 10 may not be provided with the battery 400. The support rod 100 may be provided with a power plug, and the power plug is electrically connected to the main board 500, and the power plug is inserted into an external power source to supply power to the light source 302. In addition, here, the battery 400 may be a dry battery and needs to be replaced when the power is exhausted; the battery 400 may also be a storage battery and can be repeatedly used by charging with an external power source. That is, in the present application, the presence or absence of the battery 400 and the battery type are not limited.

[0047] Continue to refer to Figure 6 , in this embodiment, most of the length of the conducting wire 600 is bent and spirally accommodated in the second installation cavity 203. The length of the conducting wire 600 accommodated in the second installation cavity 203 is greater than the length of the conducting wire 600 accommodated in the first installation cavity 103. During the pitching and swinging of the movable rod 200 relative to the support rod 100, the conducting wire 600 can be pulled out of the second installation cavity 203 and exposed to the outside as the movable rod 200 swings. And the conducting wire 600 has no elasticity. Therefore, during the return swing of the movable rod 200, the previously pulled-out part of the conducting wire 600 cannot automatically retract into the second installation cavity 203 and is wound and stacked between the first connection end 201 and the installation end 102 (within the avoidance area 133). As the number of rotations of the first connection end 201 increases, the length of the exposed and stacked conducting wire 600 becomes longer, and the conducting wires 600 rub against each other and are stacked and knotted, which will cause poor contact and the risk of shortening the service life of the conducting wire 600. To solve the above existing risk problems, the lighting device 10 of the present application is further provided with an elastic member 700. The elastic member 700 is sleeved on the conducting wire 600, and the user can drive the conducting wire 600 to retract into the second installation cavity 203 by the elasticity of the elastic member 700.

[0048] It should be understood that, first, in other embodiments, most of the length of the conductive wire 600 can also be received and accommodated in the first installation cavity 103. At this time, during the pitching and swinging of the movable rod 200 relative to the support rod 100, the conductive wire 600 can be pulled out of the first installation cavity 103 and exposed to the outside as the movable rod 200 swings. That is, in the present application, the relative lengths of the conductive wire 600 received and accommodated in the first installation cavity 103 and the second installation cavity 203 are not limited. Second, the winding method of the conductive wire 600 is not limited, as long as it satisfies that the conductive wire 600 can be pulled out of the first installation cavity 103 or the second installation cavity 203 as the movable rod 200 swings. Therefore, finally, the elastic force of the elastic member 700 drives the conductive wire 600 to move back and can also retract into the first installation cavity 103.

[0049] Specifically, with reference to Figure 7 and Figure 8 , the elastic member 700 has opposite first end 701 and second end 702. The first end 701 is fixed to the installation end 102, and the second end 702 is fixed to the first connection end 201. The part of the conductive wire 600 extending from the first end 701 to the second end 702 is sleeved by the elastic member 700. The conductive wire 600 enters the second installation cavity 203 after passing through the first end 701 and the second end 702 in sequence from the first installation cavity 103. The relative movement (rotation) of the first connection end 201 and the installation end 102 causes the first end 701 to approach or move away from the second end 702. With reference to Figures 7 to 8 , when the first connection end 201 rotates relative to the installation end 102 to the unfolded state of the lighting device 10, the first end 701 moves away from the second end 702, the elastic member 700 is stretched and stores the elastic force for resetting, and at the same time, more parts of the conductive wire 600 are guided out between the first end 701 and the second end 702 and are sleeved by the elastic member 700; conversely, with reference to Figures 8 to 7 , when the first connection end 201 rotates in the opposite direction relative to the installation end 102 to the received state of the lighting device 10, the first end 701 approaches the second end 702, the elastic member 700 releases the reset elastic force and contracts, and the conductive wire 600 sleeved in the elastic member 700 is partially guided into the first installation cavity 103 and / or the second installation cavity 203, that is, there are three cases. During the return movement, only a part of the conductive wire 600 sleeved in the elastic member 700 is guided into the first installation cavity 103, or only the conductive wire 600 sleeved in the elastic member 700 is guided into the second installation cavity 203, or both ends of the conductive wire 600 sleeved in the elastic member 700 are simultaneously guided into the first installation cavity 103 and the second installation cavity 203 respectively.

[0050] The length of the conductive wire 600 between the first end 701 and the second end 702 becomes shorter. Here, it is not difficult to see that the length of the conductive wire 600 between the first end 701 and the second end 702 is consistent with the length of the elastic member 700. The length dimension of the conductive wire 600 within the elastic member 700 changes as the elastic member 700 expands and contracts, that is, the extension trajectory of the conductive wire 600 within the elastic member 700 adapts to the extension trajectory of the elastic member 700.

[0051] Specifically, the elastic member 700 is sleeved on the conductive wire 600 between the first end 701 and the second end 702. When the elastic member 700 contracts and shortens under its own elastic force, the conductive wire 600 itself has no resilience. The internal space of the elastic member 700 greatly decreases. Since the conductive wire 600 itself has no elastic force, the conductive wire 600 can only be extruded out of the elastic member 700 as the internal space of the elastic member 700 is compressed. The two ends of the internal space of the elastic member 700 are respectively communicated with the first installation cavity 103 and the second installation cavity 203. Therefore, the part of the conductive wire 600 extruded out of the elastic member 700 retracts into the first installation cavity 103 or the second installation cavity 203. It should be noted that the elastic member 700 of the present application can adopt a telescopic spring or an elastic rubber sleeve, both of which can be sleeved on the conductive wire 600 and can generate elastic deformation by changing the length.

[0052] It should be understood that in other embodiments, when the movable rod 200 moves relative to the support rod 100, for example, when the movable rod 200 is sleeved on the support rod 100 and can move relative to it vertically, in the case where the first installation cavity 103 and the second installation cavity 203 can be directly communicated, the conductive wire 600 will not extend out of the outside world. The conductive wire 600 directly extends from the first installation cavity 103 to the second installation cavity 203. When the movable rod 200 moves relative to the support rod 100, more parts of the conductive wire 600 will also be guided between the first end 701 and the second end 702. The elastic member 700 is sleeved on the conductive wire 600, and the elastic force released by the elastic member 700 can also guide the conductive wire 600 to retract into the first installation cavity 103 or the second installation cavity 203.

[0053] An embodiment of the present utility model provides a lighting device 10, which includes a support rod 100, a movable rod 200, and a lamp head 300 connected in sequence. As the movable rod 200 moves or swings relative to the support rod 100, the lamp head 300 can not only change the lighting orientation of the lamp head 300, but also realize the folding and storage of the entire lighting device 10. The lighting device 10 further includes a main board 500, a conductive wire 600, and an elastic member 700. The lamp head 300 is electrically connected to the main board 500 in the support rod 100 through the conductive wire 600 to achieve power supply. The conductive wire 600 passes through the movable rod 200 and the support rod 100 in sequence. The elastic member 700 is fixed between the support rod 100 and the movable rod 200 and sleeved on the conductive wire 600. Therefore, during the movement or swing of the movable rod 200 relative to the support rod 100, the conductive wire 600 is pulled out with an extra length at the connection position of the movable rod 200 and the support rod 100, and the elastic member 700 is also stretched to accumulate elastic force; during the return process of the movable rod 200, the elastic member 700 contracts, the length of the conductive wire 600 in the elastic member 700 becomes shorter, and the extra conductive wire 600 is guided and squeezed back into the movable rod 200 or the support rod 100 by the elastic force. The extension trajectory of the conductive wire 600 in the elastic member 700 adapts to the extension trajectory of the elastic member 700. The elastic member 700 has a proper degree of expansion and contraction, so that the conductive wire 600 will not be damaged due to excessive bending. At the same time, when the elastic member 700 is sleeved outside the conductive wire 600, it plays a role in preventing other components from being scratched and damaged.

[0054] Reference Figure 7 Or Figure 8 , it is easy to see that in this embodiment, the movable rod 200 is rotatably connected to the outside of the support rod 100, and the first connection end 201 swings in a pitching manner relative to the mounting end 102 along the axial direction of the support rod 100. The conductive wire 600 extends out of the outside world from the first installation cavity 103 and then extends into the second installation cavity 203. The part of the conductive wire 600 located outside the first installation cavity 103 and the second installation cavity 203 is sleeved by the elastic member 700. It should be understood that in other embodiments, when the first installation cavity 103 and the second installation cavity 203 are communicated, the conductive wire 600 directly passes through the first installation cavity 103 and the second installation cavity 203 in sequence without being exposed.

[0055] Optimally, in this embodiment, continue to refer to Figure 7 Or Figure 8, a pipe groove 204 is provided in the first connection end 201. The pipe groove 204 communicates the second installation cavity 203 with the outside. The second end 702 is fixed to the end of the pipe groove 204 close to the second installation cavity 203. The pipe groove 204 is for the elastic member 700 to pass through. Here, the pipe groove 204 is provided for the elastic member 700 to pass through. After the elastic member 700 extends out of the second end 702 through the pipe groove 204 and then extends to the first end 701, the extension trajectory of the elastic member 700 is restricted by the pipe groove 204, so that the elastic member 700 has a longer stretching length and accumulates greater elastic force during the stretching process. Refer to Figure 8 The unfolded state diagram of the lighting device 10 shown. Define the position where the first end 701 is located as point a, the outlet position of the pipe groove 204 as point b, and the position where the second end 702 is located as point c. Preferably, in this embodiment, the three points a, b, and c are coplanar and non-collinear to form a plane triangle abc. The elastic member 700 is restricted to perform telescopic movement within the plane triangle abc, and the elastic member 700 does not need to bend and extend between non-coplanar planes, thereby reducing the wear of non-coplanar bending and increasing the service life.

[0056] Here, it should be noted that if the pipe groove 204 is not provided, there is no point b, so the stretching distance length of the elastic member 700 can be ac; in the case where the pipe groove 204 is provided, the stretching distance length of the elastic member 700 is ab + bc. According to the fact that the sum of the lengths of two sides of a triangle is greater than the length of the third side, that is, the length: ab + bc > ac. Therefore, when the lighting device 10 is in the same unfolded state, setting the pipe groove 204 can make the stretching length of the elastic member 700 longer and accumulate greater elastic force. It should be understood that, first, in other embodiments of the present application, the pipe groove 204 may not be provided, as long as it is satisfied that the elastic member 700 can be stretched and accumulate elastic force during the rotation process of the first connection end 201; second, on the premise of not considering the wear caused by the non-coplanar extension and bending of the elastic member 700, the three points a, b, and c may not be coplanar.

[0057] Optimally, in this embodiment, refer to Figure 7 Or Figure 8 , the axial direction of the pipe groove 204 is parallel to the axial direction of the movable rod 200. According to the geometric relationship of the plane triangle, the above optimized design makes the stretching length of the elastic member 700 reach the maximum. It should be understood that in other embodiments, on the premise of not considering the stretching degree of the elastic member 700 in the same plane, the axial direction of the pipe groove 204 can also be inclined to the axial direction of the movable rod 200.

[0058] Optimally, in this embodiment, in combination with reference to Figure 9 And Figure 10, the first connection end 201 is also provided with a guide rail 205 communicating with the pipe groove 204. The guide rail 205 is formed by being concave inward along the radial direction of the movable rod 200 on the outer wall surface of the first connection end 201. After the guide rail 205 extends axially along the movable rod 200 from the outlet of the pipe groove 204 to the end edge of the first connection end 201, the guide rail 205 continues to bend and extend to the end face of the first connection end 201. During the rotation of the first connection end 201, the partial structure of the elastic member 700 after extending out of the pipe groove 204 is limited within the guide rail 205, thereby preventing the elastic member 700 from deflecting circumferentially along the movable rod 200. Therefore, the guide rail 205 limits the extension trajectory of the elastic member 700 and plays a role in preventing the circumferential deflection of the elastic member 700. Here, referring to Figure 8 , we can see that the entire guide rail 205 is coplanar with the triangle abc described above and is located within the swing plane of the first connection end 201, that is, the elastic member 700 always moves within the same plane. Such a setting enables the elastic member 700 not to be bent and extended in different planes even when restricted by the trajectory of the guide rail 205 during the telescopic process, thereby protecting the elastic member 700 from bending and wear and increasing its service life. The conductive wire 600 sleeved inside the elastic member 700 is also protected accordingly, increasing its service life. It should be understood that in other embodiments of the present application, without considering the circumferential deflection of the elastic member 700 along the movable rod 200 during the telescopic process, the guide rail 205 may not be provided.

[0059] Optimally, in this embodiment, the depth dimension of the guide rail 205 is not less than the radial dimension of the elastic member 700, so that the part of the elastic member 700 limited within the guide rail 205 does not protrude from the wall surface of the first connection end 201. The above design, on the one hand, protects the elastic member 700 from friction and wear by other components; on the other hand, the limited part of the elastic member 700 is completely received within the guide rail 205, making the structure of the lighting device 10 more compact and beautiful. It should be understood that in the present application, the relative sizes of the depth dimension of the guide rail 205 and the radial dimension of the elastic member 700 are not limited, as long as the guide rail 205 can limit the circumferential deflection movement of the elastic member 700 around the movable rod 200.

[0060] Finally, it should be understood that since the first connection end 201 and the installation end 102 are rotatably connected and swing relative to each other in pitch, in other embodiments of the present application, the positions where the pipe groove 204 and the guide rail 205 are provided can also be at the installation end 102. At this time, the pipe groove 204 communicates the first installation cavity 103 with the outside. After the guide rail 205 extends axially along the support rod 100 from the outlet of the pipe groove 204 to the end edge of the installation end 102, it continues to bend and extend to the end face of the installation end 102. Even in another embodiment, both the first connection end 201 and the installation end 102 can be provided with the pipe groove 204 and the guide rail 205 at the same time for the elastic member 700 to pass through and be limited respectively.

[0061] In the present application, in order to conveniently and clearly distinguish the installation positions of the pipe groove 204 and the guide rail 205, the pipe groove 204 and the guide rail 205 provided on the first connection end 201 are respectively defined as the first pipe groove 204a and the first guide rail 205a; the pipe groove 204 and the guide rail 205 provided on the installation end 102 are respectively defined as the second pipe groove and the second guide rail.

[0062] Although the present utility model has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present utility model can be embodied in many forms without departing from the spirit or essence of the utility model, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A lighting device, characterized in that, Comprising: A support rod having an installation end and a support end opposite to each other along its axial direction, and a first installation cavity is formed in the support rod; A movable rod having a first connection end and a second connection end opposite to each other along its axial direction, the first connection end is movably connected to the installation end, and a second installation cavity is formed in the movable rod; A main board disposed in the first installation cavity; A lamp holder including a lamp housing and a light source, the lamp housing is connected to the second connection end; An elastic member, which is a telescopic spring or an elastic rubber sleeve, the elastic member has a first end and a second end opposite to each other, the first end is fixed to the installation end, and the second end is fixed to the first connection end; A conducting wire passes through the first installation cavity, the first end and the second end in sequence and then enters the second installation cavity, the extension trajectory of the conducting wire in the elastic member adapts to the extension trajectory of the elastic member, and the two ends of the conducting wire in the length direction are electrically connected to the main board and the light source respectively; The relative movement between the first connection end and the installation end causes the first end to approach or move away from the second end; when the first end moves away from the second end, the elastic member is stretched and stores an elastic force for resetting, and more parts of the conducting wire are guided between the first end and the second end; when the first end approaches the second end, relying on the reset elastic force released by the elastic member, part of the conducting wire in the elastic member is guided to the first installation cavity and / or the second installation cavity.

2. The lighting device according to claim 1, wherein The movable rod is rotatably connected to the outside of the support rod, the first connection end swings up and down relative to the installation end along the axial direction of the support rod, the conducting wire extends out of the first installation cavity to the outside and then extends into the second installation cavity, and the part of the conducting wire outside the first installation cavity and the second installation cavity is sleeved by the elastic member.

3. The lighting device according to claim 2, characterized in that, The first connection end is provided with a first pipe groove, the first pipe groove communicates the second installation cavity with the outside, the second end is fixed to the end of the first pipe groove close to the second installation cavity, and the first pipe groove is for the elastic member to pass through.

4. The lighting device according to claim 3, characterized in that, The axial direction of the first pipe groove is parallel to the axial direction of the movable rod.

5. The lighting device according to claim 3, characterized in that, The position point where the first end is located, the position point where the second end is located and the outlet position point of the first pipe groove are coplanar.

6. The lighting device according to claim 3, characterized in that The first connection end is provided with a first guide rail communicating with the first pipe groove, the first guide rail extends from the outlet of the first pipe groove along the axial direction of the movable rod to the end edge of the first connection end, and then the first guide rail continues to bend and extend to the end face of the first connection end. During the rotation of the first connection end, the part of the elastic member extending out of the first pipe groove is limited in the first guide rail.

7. The lighting device according to claim 6, characterized in that, The depth dimension of the first guide rail is not less than the radial dimension of the elastic member, so that the part of the elastic member limited in the first guide rail does not protrude from the wall surface of the second connection end.

8. The lighting device according to any one of claims 2 to 7, characterized in that, The installation end is provided with a second pipe groove, the second pipe groove communicates the first installation cavity with the outside, the first end is fixed to the end of the second pipe groove close to the first installation cavity, and the second pipe groove is for the elastic member to pass through.

9. The lighting device according to claim 8, wherein, The installation end is provided with a second guide rail communicating with the second pipe groove. The second guide rail extends along the axial direction of the movable rod from the outlet of the second pipe groove to the end edge of the installation end, and then the second guide rail continues to bend and extend to the end face of the installation end. During the rotation of the installation end, a partial structure of the elastic member extending out of the second pipe groove is limited in the second guide rail.

10. The lighting device according to claim 2, characterized in that, The first connection end can rotate relative to the installation end until the movable rod and the support rod are arranged side by side and closed, and at this time, the lamp housing is buckled on the support end.

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