Lifting device and lighting device

Abstract

The embodiment of the application discloses a lifting device and a lighting device, the lifting device comprises a static rod assembly, an inner dynamic rod and an electric connecting piece; the static rod assembly comprises an outer static rod, a hollow cavity is formed in the inner part of the outer static rod; one end of the inner dynamic rod is movably arranged in the hollow cavity along the extension direction of the outer static rod, and the inner dynamic rod is used for connecting a to-be-supported piece; the electric connecting piece is arranged on the inner dynamic rod; the static rod assembly further comprises a conductive piece and a connecting structure, the conductive piece is arranged in the hollow cavity and extends along the extension direction of the outer static rod, and the conductive piece is connected and fixed to the outer static rod through the connecting structure; along the moving direction of the inner dynamic rod, the electric connecting piece and the conductive piece are in sliding contact. The lifting device of the embodiment of the application is beneficial to improving the reliability of the lighting device, and is also beneficial to improving the assembly convenience of the lifting device.

Description

Technical Field

[0001] This application relates to the field of lighting equipment technology, and in particular to a lifting device and lighting equipment. Background Technology

[0002] In related technologies, lighting equipment uses a lifting device to adjust its height. During lifting, the distance between the electrical components and the power interface of the lighting equipment changes. The length of the cable connecting the electrical components and the power interface must not be less than the maximum distance between the power interface and the electrical components. When the lifting device is not at its highest position, the length of the cables installed within it is redundant, and the cables may bend or deform. During lifting, the cables repeatedly bend and / or deform, making them prone to damage. Furthermore, excessively long cables are inconvenient to handle during assembly and are also easily damaged, thus leading to low reliability of the lighting equipment. Utility Model Content

[0003] In view of this, the embodiments of this application aim to provide a lifting device and a lighting device, which are intended to improve the reliability of the lighting device and the ease of assembly of the lifting device.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows: This application provides a lifting device, including: A stationary rod assembly includes an outer stationary rod, the interior of which is formed with a hollow cavity; An inner moving rod, one end of which is movably disposed within the hollow cavity along the extension direction of the outer stationary rod, is used to connect the component to be supported; An electrical connector is provided on the inner moving rod; The stationary rod assembly further includes a conductive element and a connecting structure. The conductive element is disposed in the hollow cavity and extends along the extension direction of the outer stationary rod. The conductive element is connected and fixed to the outer stationary rod through the connecting structure. The electrical connector and the conductive element are in sliding contact along the movement direction of the inner moving rod.

[0005] In some embodiments, the outer stationary rod includes a rod body and a reinforcing structure disposed inside the rod body, the connecting structure is connected to the reinforcing structure, the conductive element has a snap-fit ​​hole, and the connecting structure is snapped into the snap-fit ​​hole.

[0006] In some embodiments, the conductive element includes an insulating shell and a conductive strip, the conductive strip being disposed on one side of the insulating shell, the conductive strip having a first locking hole, the insulating shell having a second locking hole, the first locking hole and the second locking hole being connected to form the locking hole, and the cross-sectional area of ​​the first locking hole being smaller than the cross-sectional area of ​​the second locking hole; The connection structure includes a connection body and a first bending portion disposed on the connection body. The connection body is disposed on the side of the conductive strip away from the insulating shell. The first bending portion extends into the first card hole and abuts against the side of the conductive strip away from the connection body.

[0007] In some embodiments, the connection structure further includes a positioning element that passes through the snap-fit ​​hole from one side of the second snap-fit ​​hole and is connected to the connection body, with at least a portion of the positioning element located within the second snap-fit ​​hole.

[0008] In some embodiments, the connecting structure includes a connecting body and a second bent portion disposed on the connecting body, the connecting body being disposed on the outer surface of the reinforcing structure, and the second bent portion abutting against the inner surface of the reinforcing structure; and / or, The end of the outer static rod away from the member to be supported is flush with the end of the reinforcing structure away from the member to be supported.

[0009] In some embodiments, the lifting device further includes a first power line, the two ends of which are electrically connected to a power interface and the conductive element, respectively.

[0010] In some embodiments, the connection structure is provided with a cable guide groove, and one end of the first power cable is disposed in the cable guide groove; and / or, The reinforcing structure has a wire-passing structure, and a portion of the first power line is disposed within the wire-passing structure.

[0011] In some embodiments, the conductive element includes a conductive strip to which the first power line is soldered.

[0012] In some embodiments, the side of the conductive element that slides in contact with the electrical connector is coated with conductive grease; and / or, The number of conductive elements is two, and the two conductive elements are located on opposite sides of the hollow cavity.

[0013] This application also provides a lighting device, including: The lifting device described in any of the above embodiments; The lamp holder is connected to the top of the inner moving rod; A support is attached to the bottom end of the outer stationary rod; The lamp head is the support component to be supported.

[0014] The lifting device in this embodiment adopts a structure in which electrical connectors and conductive components slide in contact to conduct the circuit. During the extension or retraction of the inner moving rod relative to the outer stationary rod, the electrical connector slides on the conductive component and achieves electrical connection between the two. Neither the electrical connector nor the conductive component needs to rely on repeated bending and / or deformation to adapt to changes in the distance between the electrical device and the power interface. Thus, there is no problem of entanglement or damage to the electrical connector and / or conductive component due to the lifting of the inner moving rod, which helps to improve the reliability of the circuit connection between the electrical device and the power interface. Moreover, there is no need to set up clearance space inside the lifting device for bending and / or deformation of the electrical connector and conductive component, which helps to improve the space utilization of the product. In addition, the length of the lifting device's cable is reduced, making it more convenient to operate during assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a lighting device according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a lifting device according to an embodiment of this application; Figure 3 For along Figure 2 A schematic diagram of the cross-sectional structure obtained by AA sectioning; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 for Figure 3 Enlarged view of point C in the middle; Figure 6 This is an assembly diagram of the inner moving rod, the hovering assembly, the guide assembly, and the second power line according to an embodiment of this application; Figure 7 for Figure 6 Enlarged view of point D in the middle; Figure 8 for Figure 6 Enlarged view of point E in the middle; Figure 9 This is an exploded view of a guide component according to an embodiment of this application; Figure 10 This is an exploded view of a stationary rod assembly according to an embodiment of this application; Figure 11 for Figure 10 Enlarged view of point F in the middle; Figure 12 for Figure 10 Enlarged view of point G in the middle; Figure 13 This is a schematic diagram of the structure of a hovering component according to an embodiment of this application; Figure 14 This is a schematic diagram of the structure of a hovering component according to another embodiment of this application; Figure 15 This is a cross-sectional structural diagram of a rod according to an embodiment of this application; Figure 16 This is an exploded view of a magnetic suction component according to an embodiment of this application.

[0016] Explanation of reference numerals in the attached figures 1. Lifting device; 11. Static rod assembly; 111. Outer static rod; 1111. Rod body; 1111a. Hollow cavity; 1111b. Slot; 1111d. First hole; 1111m. First guide part; 1111n. Bayonet; 1112. Reinforcing structure; 1112a. Wire passage structure; 112. Conductive component; 1121. Insulating shell; 1121a. Second slot; 1122. Conductive strip; 1122a. First slot; 113. Connecting structure; 1131. Connecting body; 1131a. Wire passage groove; 1132. First bend; 1133. Positioning component; 1134. Second bend; 12. Inner moving rod; 12a. Mounting cavity; 12b. Second hole; 12c. Positioning socket; 13. Suspension assembly; 131. End cap; 131a. Buckle; 1 32. Telescopic component; 132a. Connecting hole; 1321. Telescopic sub-component; 133. Fixing component; 1331. Fixing body; 1331a. Receiving cavity; 1331b. Connecting shaft; 1331c. Support wall; 1332. Cover; 14. Upper limit position; 15. Magnetic suction assembly; 151. Mounting base; 1511. Base; 1512. Elastic body; 152. Magnetic suction component; 16. Locking pin; 18. Second power cord; 19. Guide assembly; 191. Guide body; 191a. Second guide part; 191b. Lower limit position; 191c. Mounting groove; 191d. Slot; 191m. Positioning protrusion; 192. Electrical connector; 1921. Conductive body; 1922. Elastic part; 1923. Conductive protrusion; 2. Lamp head; 3. Support; 4. Remote control component. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore only examples, and should not be used to limit the scope of protection of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0018] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0021] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0022] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0023] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Please see Figures 1 to 3 This application provides a lifting device 1, which can be applied to lighting equipment or other equipment requiring lifting, such as a fan with adjustable airflow height or a computer with adjustable screen height. For details, please refer to... Figure 1In this embodiment, the lifting device 1 is used as an example for illustration when applied to a lighting device.

[0025] It should be noted that the application scenario type of this application embodiment does not limit the structure of the lifting device 1 in this application embodiment.

[0026] The lifting device 1 is used to connect the component to be supported. The lifting device 1 adjusts the height of the component by raising and lowering it. The specific type of component to be supported is adapted to the application scenario of the lifting device 1. The component to be supported can be, for example, a lamp head 2, a fan head, or a computer monitor, etc.

[0027] It should be noted that when the lifting device 1 is used by the user, its extension direction is approximately parallel to the height direction of the applied equipment (such as lighting equipment). Lifting or lowering of the lifting device 1 refers to the increase or decrease in the height of its top end.

[0028] It should be noted that in this embodiment, "top" and "bottom" should be understood in the orientation of the lifting device 1 when it is in normal use. For example, "top of the lifting device 1" refers to the end of the lifting device 1 that is away from the ground along its extension direction.

[0029] This application also provides a lighting device; please refer to [link / reference]. Figure 1 The lighting equipment includes a lamp head 2, a support 3, and a lifting device 1 according to any embodiment of this application.

[0030] It should be noted that when the lighting equipment adopts the lifting device 1 of any embodiment of this application, the lighting equipment has all the advantages of the lifting device 1 of the corresponding embodiment, and the specific advantages are described in detail below.

[0031] Please see Figures 2 to 4 The lifting device 1 includes a stationary rod assembly 11 and an inner moving rod 12. The stationary rod assembly 11 includes an outer stationary rod 111, and a hollow cavity 1111a is formed inside the outer stationary rod 111. One end of the inner moving rod 12 is movably disposed in the hollow cavity 1111a along the extension direction of the outer stationary rod 111. The inner moving rod 12 is used to connect the member to be supported.

[0032] Here, the hollow cavity 1111a is the area formed by the inner contour of the outer stationary rod 111, which does not exceed the outer contour boundary of the outer stationary rod 111 in the external environment, that is, the height of the hollow cavity 1111a is less than or equal to the height of the outer stationary rod 111.

[0033] Please see Figure 1 Support 3 is connected to the bottom end of the outer stationary rod 111.

[0034] The lighting equipment is supported on the ground by the support 3. When the lifting device 1 is raised or lowered, the outer stationary rod 111 is in a relatively stationary state, and the inner moving rod 12 moves relative to the outer stationary rod 111 along its extension direction, so that the height of the top of the inner moving rod 12 increases or decreases.

[0035] Please see Figures 2 to 5 A portion of the inner moving rod 12 is located within the hollow cavity 1111a. Specifically, the lower portion of the inner moving rod 12 is inserted into the hollow cavity 1111a, while the other portion of the inner moving rod 12 outside the hollow cavity 1111a is connected to the member to be supported. At least the top end of the inner moving rod 12 is located outside the height range of the outer stationary rod 111, but is always located above the outer stationary rod 111. In some possible embodiments, the member to be supported is connected to the top end of the inner moving rod 12.

[0036] Please see Figure 1 The lamp head 2 is connected to the top of the inner moving rod 12. In this way, as the lifting device 1 rises and falls, the height of the lamp head 2 can also change.

[0037] It is understandable that the actual length of the inner moving rod 12 does not change during the lifting process of the lifting device 1. Specifically, when the lifting device 1 is raised, the length of the inner moving rod 12 extending from the hollow cavity 1111a gradually increases, thus increasing the overall height of the lifting device 1; while when the lifting device 1 is lowered, a portion of the inner moving rod 12 retracts into the hollow cavity 1111a, thus decreasing the overall height of the lifting device 1.

[0038] In some embodiments, please refer to Figure 6 , Figure 7 , Figure 13 and Figure 14 The lifting device 1 also includes a hovering assembly 13, which includes an end cap 131, a telescopic member 132, and a fixing member 133 disposed on the inner moving rod 12. The end cap 131 surrounds the inner moving rod 12 and is fixedly connected to one end of the outer stationary rod 111. The telescopic member 132 is connected to the end cap 131 and the fixing member 133 respectively.

[0039] The specific structure for the connection between the end cap 131 and the outer stationary rod 111 is not limited.

[0040] For example, please refer to Figures 13 to 15 The end cap 131 has a buckle 131a, and the outer stationary rod 111 has a bayonet 1111n. The buckle 131a is engaged with the bayonet 1111n, thereby achieving the connection between the two.

[0041] Here, the bayonet 1111n can be a through hole or a blind hole.

[0042] Here, the bayonet 1111n can be opened on the outer wall of the outer stationary rod 111, or it can be opened on the cavity wall of the hollow cavity 1111a.

[0043] Please see here. Figure 7 The shape and size of the area enclosed by the end cap 131 can match the shape and size of the cross-section of the inner moving rod 12. In this way, the inner wall of the end cap 131 has a guiding function, and the inner moving rod 12 can slide on the inner wall of the end cap 131 to perform lifting and lowering.

[0044] It is understandable that, since the inner moving rod 12 needs to be set inside the outer stationary rod 111, the cross-sectional dimension of the outer stationary rod 111 is larger than the cross-sectional dimension of the inner moving rod 12. However, by opening the bayonet 1111n on the cavity wall of the hollow cavity 1111a, the cross-sectional dimension of the end cap 131 will not exceed the cross-sectional dimension of the inner moving rod 12 by much. In this way, it is convenient to set the shape and size of the area enclosed by the end cap 131 to match the shape and size of the cross-section of the inner moving rod 12.

[0045] It should be noted that the cross-sections of the inner moving rod 12, the outer stationary rod 111, and the end cap 131 are all perpendicular to the height direction of the lifting device 1.

[0046] The fixing member 133 is also located within the hollow cavity 1111a. This facilitates the arrangement of the end cap 131 and the fixing member 133 along the height direction of the lifting device 1.

[0047] The telescopic component 132 is designed to adaptively adjust its length according to the magnitude of the external force. In this way, when the lifting device 1 supports different components, if there are weight differences between the components, the total weight of the components and the inner moving rod 12 will also differ. The telescopic component 132 adaptively adjusts its length according to the different gravity to provide different levels of support force, thereby achieving stepless hovering support for different components.

[0048] In this embodiment, the end cap 131 is connected to the outer stationary rod 111 to maintain a relatively static state. The fixing member 133 is provided on the inner moving rod 12, and the telescopic member 132 is constructed to adaptively adjust its length according to the magnitude of the external force. Thus, when the weight of the support member supported by the inner moving rod 12 changes, the total weight of the inner moving rod 12 and the support member also changes. The gravity borne by the end of the telescopic member 132 connected to the fixing member 133 changes, and the telescopic member 132 adaptively extends and retracts to the corresponding length according to the magnitude of the gravity, so that the inner moving rod 12 is suspended at the corresponding height. Since the lifting device 1 can automatically suspend to the corresponding height according to the weight of the support member, it can realize stepless suspension of the lighting equipment, and the operation is also relatively convenient.

[0049] In some embodiments, the telescopic member 132 and the end cap 131 are secondary injection molded structures.

[0050] The secondary injection molding structure refers to the connection between the telescopic component 132 and the end cap 131 using a molding process. Specifically, the telescopic component 132 is placed on the mold positioning, and then the telescopic component 132 is fused together with the rubber material through injection molding. The rubber material is then molded to form the end cap 131, thereby making the telescopic component 132 and the end cap 131 an integral structure.

[0051] In related technologies, since the end cap is connected to the outer stationary rod, the end cap is in a relatively stationary state when the lifting device is raised or lowered. One end of the telescopic component is connected to the end cap, and the other end is connected to the inner moving rod. The end cap bears part of the supporting force used to support the inner moving rod and the component to be supported through the telescopic component. If the connection between the end cap and the telescopic component is not reliable, it may cause the telescopic component to fall off the end cap when the lifting device is suspended. That is, the reliability and stability of the lifting device when suspended are poor.

[0052] In this embodiment, the telescopic component 132 and the end cap 131 are two-stage injection molding structures, that is, the telescopic component 132 and the end cap 131 are formed into an integral structure. This helps to reduce production costs. At the same time, the reliability and stability of the connection between the integral telescopic component 132 and the end cap 131 are higher, which helps to improve the reliability and stability of the lifting device 1 when it is hovering.

[0053] In some embodiments, please refer to Figure 13 and Figure 14 The telescopic component 132 is provided with a connecting hole 132a penetrating its wall, and a portion of the end cap 131 is embedded in the connecting hole 132a. In this way, a portion of the end cap 131 is fused into the connecting hole 132a through a molding process, allowing for better integration between the telescopic component 132 and the end cap 131. This further improves the connection reliability between the end cap 131 and the telescopic component 132, thereby reducing the risk of the telescopic component 132 detaching during hovering.

[0054] In some embodiments, please refer to Figure 14 The telescopic component 132 includes multiple telescopic sub-components 1321. Each telescopic sub-component 1321 has a fixed end and a free end. The free end of each telescopic sub-component 1321 is located on the fixed component 133. The fixed end of the telescopic sub-component 1321 near the end cap 131 is formed by secondary injection molding with the end cap 131. The fixed ends of the remaining telescopic sub-components 1321 are sequentially welded to the adjacent telescopic sub-components 1321 along the telescopic direction of the telescopic component 132.

[0055] For example, each telescopic component 1321 can be fixed to a jig, keeping each telescopic component 1321 stationary. This improves the consistency of the welding and strengthens the bond between the telescopic components 1321, making them less prone to detachment. After multiple telescopic components 1321 are welded together to form a telescopic component 132, the telescopic component 132 is then connected to the end cap 131 using a die-casting process.

[0056] It should be noted that the specific quantity of the telescopic sub-component 1321 is not limited and depends on the requirements. For example, please refer to [link to example]. Figure 14 The number of telescopic sub-components 1321 is 5.

[0057] By setting multiple telescopic sub-components 1321, the storage capacity of the telescopic component 132 can be improved.

[0058] In some embodiments, please refer to Figure 13 and Figure 14 The fixing member 133 has a receiving cavity 1331a and a connecting shaft 1331b. The connecting shaft 1331b is disposed in the receiving cavity 1331a. The telescopic member 132 includes a coil spring. One end of the coil spring is stationary relative to the end cover 131, and the other end is wound around the connecting shaft 1331b.

[0059] Here, two coil springs form a telescopic component 1321.

[0060] The receiving cavity 1331a can provide some protection for the coil spring, and the connecting shaft 1331b can facilitate the storage of the coiled part of the coil spring.

[0061] The receiving cavity 1331a is open on at least one side along the axial direction of the connecting shaft 1331b. In this way, the coil formed by the coiling spring can extend into the receiving cavity 1331a from the open side and be sleeved on the connecting shaft 1331b, thus facilitating the assembly of the coiling spring and the fixing member 133.

[0062] In some embodiments, please refer to Figure 13 and Figure 14 The fastener 133 includes a fastening body 1331 and a cover 1332. The fastening body 1331 has a receiving cavity 1331a and a connecting shaft 1331b. The cover 1332 covers the open side of the receiving cavity 1331a.

[0063] In this way, the open side of the receiving cavity 1331a can be sealed by the cover 1332, thereby preventing the coil formed by the coiling spring from coming out of the receiving cavity 1331a. This helps to improve the reliability of the telescopic member 132 when it extends or retracts.

[0064] In some embodiments, please refer to Figure 6 and Figure 7The telescopic member 132 includes at least one telescopic sub-member 1321, which includes two coil springs. The end wall of the fixing member 133 near the end cap 131 is a support wall 1331c. The two coil springs are respectively located on opposite sides of the support wall 1331c. In the arrangement direction of the two coil springs, the dimensions of the two sides of the support wall 1331c are larger than the dimensions of the two sides of the inner moving rod 12.

[0065] Understandably, due to the supporting effect of the support wall 1331c, the spacing between the two coil springs in the arrangement direction will also be greater than the dimensions on both sides of the inner moving rod 12. This helps to reduce the probability of the coil springs scratching the inner moving rod 12 during extension and retraction, thereby reducing the possibility of the inner moving rod 12 being scratched.

[0066] In some embodiments, please refer to Figure 6 and Figure 7 The inner moving rod 12 has a mounting cavity 12a, which is spaced apart from both ends of the inner moving rod 12. At least a portion of the fixing member 133 is disposed in the mounting cavity 12a.

[0067] Specifically, the hovering assembly 13 and the inner moving rod 12 can be assembled according to the following steps: Step 1: Slide the end cap 131 onto the inner moving rod 12 from the top of the inner moving rod 12.

[0068] Step 2: Assemble one side of the telescopic component 132 with one side of the fixed body 1331. Here, one side of the telescopic component 132 refers to all the coil springs located on one side of the telescopic component 132.

[0069] Step 3: Insert the fixing body 1331 from one side of the mounting cavity 12a and set it inside the mounting cavity 12a.

[0070] Step 4: Assemble the other side of the telescopic component 132 with the other side of the fixed body 1331. Here, the other side of the telescopic component 132 refers to all the coil springs located on the other side of the telescopic component 132.

[0071] Step 5: Place the cover 1332 on the open side of the fixing body 1331, and fasteners can be used to fasten the cover 1332 and the fixing body 1331 together.

[0072] In this embodiment, at least a portion of the structure of the fixing member 133 is accommodated by the mounting cavity 12a, thereby facilitating the connection between the fixing member 133 and the inner moving rod 12. Moreover, the fixing member 133 is not located at the end of the inner moving rod 12 in the extending direction. Here, "end" refers to the end of the inner moving rod 12 near the support 3, that is, the bottom end of the inner moving rod 12. In this way, the inner moving rod 12 can be retracted to a position closer to the bottom end of the outer stationary rod 111, which is beneficial to improving the adjustable height range of the lifting device 1.

[0073] In some embodiments, please refer to Figure 3 and Figure 5 The outer stationary rod 111 has a first hole 1111d, and the inner moving rod 12 has a second hole 12b. When the inner moving rod 12 is in the shortest extension state relative to the outer stationary rod 111, the first hole 1111d and the second hole 12b are connected and conductive. The lifting device 1 also includes a locking pin 16, which passes through the first hole 1111d and the second hole 12b.

[0074] It should be noted that both the first hole 1111d and the second hole 12b are through holes.

[0075] In this embodiment, the locking pin 16 ensures that the overall length of the lifting device 1 is kept to a minimum, which facilitates reducing the product volume and packaging volume during transportation, and also makes transportation easier.

[0076] In some embodiments, please refer to Figure 3 and Figure 5 The cross-sectional area of ​​the second hole 12b is larger than that of the first hole 1111d, and the locking pin 16 is bent.

[0077] In this way, by passing the bent portion of the locking pin 16 through the first hole 1111d and the second hole 12b in sequence, rotating the locking pin 16 and allowing the bent portion of the locking pin 16 to hang down naturally, the locking pin 16 will not disengage from the second hole 12b in the direction of the first hole 1111d, thus achieving relative fixation between the outer stationary rod 111 and the inner moving rod 12.

[0078] The cross-sectional area of ​​the second hole 12b is larger than that of the first hole 1111d. This allows the bent portion of the locking pin 16 to pass through the second hole 12b and rotate, thus allowing it to hang down naturally.

[0079] In some embodiments, please refer to Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 12 The lifting device 1 also includes an electrical connector 192, which is disposed in the inner moving rod 12. The stationary rod assembly 11 also includes a conductive element 112, which is disposed in the hollow cavity 1111a and extends along the extension direction of the outer stationary rod 111. The electrical connector 192 and the conductive element 112 slide in contact along the moving direction of the inner moving rod 12.

[0080] Both the electrical connector 192 and the conductive component 112 have surfaces that can come into contact with each other, and both have a certain degree of rigidity, enabling them to abut against each other. It should be noted that the structures of the electrical connector 192 and the conductive component 112 are different from those of cables.

[0081] In related technologies, when the support component is an electrical device, the device is connected to a power interface via a cable. The cable passes directly through the lifting device, and its length is at least equal to the maximum distance between the electrical device and the power interface, including the lifting distance of the inner moving rod. Therefore, after the inner moving rod descends relative to the outer stationary rod, the distance between the electrical device and the power interface decreases. At this point, the cable length exceeds the distance between the electrical device and the power interface, causing the cable to bend and / or deform. During frequent lifting and lowering of the inner moving rod, the cable is prone to tangling, causing strain on the electrical connection points of the power interface and / or electrical device during the upward movement of the inner moving rod. This can easily lead to loosening of the electrical connection between the electrical device and / or power interface and the cable, or even cable breakage, affecting the reliability of the circuit connection between the electrical device and the power supply assembly. Furthermore, during assembly, excessively long cables can cause operational difficulties and are more likely to damage the cables, affecting the product's lifespan.

[0082] In this embodiment, an electrical connector 192 and a conductive element 112 are used in a sliding contact to conduct the circuit. During the extension or retraction of the inner moving rod 12 relative to the outer stationary rod 111, the electrical connector 192 slides on the conductive element 112 to achieve electrical connection between the two. Neither the electrical connector 192 nor the conductive element 112 needs to rely on repeated bending and / or deformation to adapt to changes in the distance between the electrical device and the power interface. Thus, there is no problem of the electrical connector 192 and / or the conductive element 112 becoming entangled or damaged due to the lifting of the inner moving rod 12, which helps to improve the reliability of the circuit connection between the electrical device and the power interface. Moreover, there is no need to set up clearance space inside the lifting device 1 for bending and / or deformation of the electrical connector 192 and the conductive element 112, which helps to improve the space utilization of the product. In addition, the length of the cable of the lifting device 1 is reduced, making it more convenient to operate during assembly.

[0083] In some embodiments, please refer to Figure 6 , Figures 8 to 11 A first guide portion 1111m is formed on the cavity wall of the hollow cavity 1111a. The lifting device 1 includes a guide assembly 19, which is disposed on the inner moving rod 12. The guide assembly 19 includes a second guide portion 191a and an electrical connector 192. Along the moving direction of the inner moving rod 12, the first guide portion 1111m and the second guide portion 191a are guided and engaged, and the electrical connector 192 and the conductive member 112 are in sliding contact.

[0084] The first guide part 1111m and the second guide part 191a cooperate to guide each other, which helps to improve the stability and reliability of the movement of the inner moving rod 12 relative to the outer stationary rod 111. At the same time, the electrical connector 192 and the conductive part 112 of the guide assembly 19 slide in contact to achieve electrical connection. That is, the guide assembly 19 integrates the functions of guidance and electrical connection, realizing the multi-functionality of the guide assembly 19. The guide assembly 19 can replace the traditional cable to achieve power supply, which helps to improve the problem of difficult operation due to excessive cable length. At the same time, the lifting device 1 is more flexible, convenient and safe to use.

[0085] In some embodiments, please refer to Figure 9 On the guide assembly 19, the perpendicular line on the side where the second guide portion 191a is located intersects the perpendicular line on the side where the electrical connector 192 is located.

[0086] Specifically, the guide assembly 19 includes two electrical connectors 192, which are used to make electrical connections to the positive and negative terminals of the power interface, respectively.

[0087] Here, the number of second guide parts 191a can also be at least two, which is beneficial to improving the stability and reliability of the guiding cooperation between the first guide part 1111m and the second guide part 191a.

[0088] In this embodiment, the guide assembly 19 has approximately four orientations. For example, two orientations are located on opposite sides of the first direction, and the other two orientations are located on opposite sides of the second direction. The first and second directions intersect (or are orthogonal). The two electrical connectors 192 are located on opposite sides of the first direction, and the two second guide portions 191a are located on opposite sides of the second direction. This makes the structure more symmetrical, and the electrical connectors 192 and the second guide portions 191a have less mutual interference when installed, thus facilitating the production of the guide assembly 19.

[0089] In some embodiments, please refer to Figure 9 and Figure 11 One of the first guide portion 1111m and the second guide portion 191a includes a guide groove, and the other includes a guide protrusion. The guiding fit structure of the guide protrusion and the guide groove is relatively simple, which facilitates the forming of the first guide portion 1111m and the second guide portion 191a. Furthermore, the forming process is relatively simple, which helps to reduce production costs and improve production efficiency.

[0090] By utilizing the combined structure of the guide protrusion and the guide groove, the probability of the inner moving rod 12 and the outer stationary rod 111 rotating around the axis due to the gap between them can be reduced.

[0091] In some embodiments, please refer to Figure 9The guide assembly 19 includes a guide body 191 and an electrical connector 192. The guide body 191 has a second guide portion 191a and a mounting groove 191c, and the electrical connector 192 is disposed in the mounting groove 191c.

[0092] The specific material of the electrical connector 192 is not limited. For example, it can be made of stainless steel.

[0093] By providing the mounting slot 191c, the electrical connector 192 can be protected, which helps to improve the stability and reliability of the electrical connection.

[0094] In some embodiments, please refer to Figure 9 The electrical connector 192 includes a conductive body 1921 and an elastic part 1922 disposed on the conductive body 1921. The elastic part 1922 elastically abuts against the groove wall of the mounting groove 191c.

[0095] For example, the elastic part 1922 has a sheet-like structure.

[0096] For example, a portion of the electrical connector 192 is bent and protruded, such that the bent and protruding portion forms an elastic part 1922, and at least a portion of the remaining structure is formed as a conductive body 1921. That is, the conductive body 1921 and the elastic part 1922 are an integral structure.

[0097] In this way, when the electrical connector 192 is installed in the mounting groove 191c, the elastic part 1922 makes the electrical connector 192 in close contact with the groove wall of the mounting groove 191c through its elasticity, which helps to improve the stability and reliability of the electrical connector 192 installed in the mounting groove 191c.

[0098] In some embodiments, please refer to Figure 9 The electrical connector 192 includes a conductive body 1921 and a conductive protrusion 1923. The conductive protrusion 1923 protrudes from the conductive body 1921 on the side facing the conductive member 112 and is slidably electrically connected to the conductive member 122.

[0099] Electrical connector 192 contacts conductive component 112 via conductive protrusion 1923. This reduces the contact area between electrical connector 192 and conductive component 112, thereby improving the sliding performance between them and facilitating the lifting of lifting device 1. At the same time, conductive protrusion 1923 is a raised structure formed by protrusion on the surface of electrical connector 192. Conductive protrusion 1923 can elastically abut against conductive component 112, thereby improving the stability and reliability of the electrical connection between them.

[0100] In some embodiments, please refer to Figure 9 There are multiple conductive bumps 1923.

[0101] For example, Figure 9 There are two in the middle.

[0102] By setting multiple conductive bumps 1923, it is beneficial to further improve the stability and reliability of the electrical connection between the electrical connector 192 and the conductive component 112.

[0103] In some embodiments, please refer to Figure 9 The conductive bump 1923 and the conductive body 1921 are formed into an integral structure. This facilitates the setting of the conductive bump 1923 and also helps to improve the stability and reliability of the conductive bump 1923 on the conductive body 1921.

[0104] In some embodiments, please refer to Figure 6 and Figure 8 The guide assembly 19 is located at one end of the inner moving rod 12 that extends into the hollow cavity 1111a.

[0105] In other words, the guide assembly 19 is located at the end of one extension of the inner moving rod 12.

[0106] In this embodiment, at least a portion of the guide assembly 19 is located outside the inner moving rod 12, thus facilitating the assembly of the guide assembly 19 and the inner moving rod 12.

[0107] In some embodiments, please refer to Figure 8 and Figure 9 The guide assembly 19 is provided with a slot 191d, and one end of the inner moving rod 12 is inserted into the slot 191d.

[0108] In this way, after one end of the inner moving rod 12 is inserted into the slot 191d, the guide assembly 19 and the inner moving rod 12 can be fastened together from the side using fasteners, making operation more convenient. At the same time, at least a portion of the inner moving rod 12 and the guide assembly 19 are sleeved together, which helps to improve the stability and reliability of the connection between the two.

[0109] In some embodiments, please refer to Figure 8 and Figure 9 The guide assembly 19 also has a positioning protrusion 191m, which protrudes from the groove wall of the slot 191d. One end of the inner moving rod 12 is provided with a positioning socket 12c, and at least a portion of the positioning protrusion 191m is located inside the positioning socket 12c.

[0110] In this way, the guide assembly 19 and the inner moving rod 12 achieve a positioning fit through the positioning socket 12c and the positioning protrusion 191m during assembly, which helps to improve the assembly efficiency between the two. At the same time, the positioning fit between the two also improves the stability and reliability of the connection between the guide assembly 19 and the inner moving rod 12.

[0111] In some embodiments, please refer to Figure 10 and Figure 12 The stationary rod assembly 11 also includes a connecting structure 113, through which the conductive element 112 is connected and fixed to the outer stationary rod 111. This facilitates the connection of the conductive element 112 to the outer stationary rod 111.

[0112] Specifically, please refer to Figure 10 and Figure 12 The conductive element 112 includes an insulating shell 1121 and a conductive strip 1122, with the conductive strip 1122 disposed on one side of the insulating shell 1121. The connecting structure 113 can also connect the insulating shell 1121 and the conductive strip 1122, and at the same time, it can fix the whole consisting of the insulating shell 1121 and the conductive strip 1122 (i.e., the conductive element 112) to the outer stationary rod 111.

[0113] In some embodiments, please refer to Figure 10 and Figure 12 The outer stationary rod 111 includes a rod body 1111 and a reinforcing structure 1112 disposed inside the rod body 1111. A connecting structure 113 is connected to the reinforcing structure 1112. The conductive element 112 has a snap-fit ​​hole, and the connecting structure 113 is snapped into the snap-fit ​​hole.

[0114] Specifically, strengthening the connection between structure 1112 and support 3 helps to improve the structural strength of the outer static rod 111. The rod body 1111 as a whole can adopt a hollow tube structure, which makes the structure simple and easy to manufacture.

[0115] The connection structure 113 and the conductive component 112 are snapped together, and the connection method is relatively simple and easy to manufacture.

[0116] When assembling the stationary rod assembly 11, the conductive component 112 and the reinforcing structure 1112 can be assembled into a whole, and then the whole assembly can be inserted from the bottom end of the rod body 1111 so that the reinforcing structure 1112 is flush with the bottom end of the rod body 1111. Then, fasteners can be used to fasten the reinforcing structure 1112 and the rod body 1111 together.

[0117] In some embodiments, please refer to Figure 10 and Figure 12The conductive component 112 includes an insulating shell 1121 and a conductive strip 1122. The conductive strip 1122 is disposed on one side of the insulating shell 1121. The conductive strip 1122 has a first locking hole 1122a, and the insulating shell 1121 has a second locking hole 1121a. The first locking hole 1122a and the second locking hole 1121a are connected to form a locking hole. The cross-sectional area of ​​the first locking hole 1122a is smaller than the cross-sectional area of ​​the second locking hole 1121a. The connecting structure 113 includes a connecting body 1131 and a first bending portion 1132 disposed on the connecting body 1131. The connecting body 1131 is disposed on the side of the conductive strip 1122 away from the insulating shell 1121. The first bending portion 1132 extends into the first locking hole 1122a and abuts against the side of the conductive strip 1122 away from the connecting body 1131.

[0118] The conductive strip 1122 can be, for example, a copper strip, which can be treated with a chemical nickel plating process and have a first card hole 1122a.

[0119] The insulating shell 1121 can be made of, for example, a highly flame-retardant material.

[0120] The first bending part 1132 and the connecting body 1131 can be an integral structure.

[0121] The conductive strip 1122 is clamped onto the connecting body 1131 by the first bending part 1132, thereby achieving the fixation between the conductive strip 1122 and the connecting structure 113.

[0122] The cross-sectional area of ​​the first locking hole 1122a is smaller than that of the second locking hole 1121a, which facilitates the first bent part 1132 to rotate after passing through the first locking hole 1122a, thereby completing the clamping of the insulating shell 1121 and the conductive strip 1122.

[0123] In this embodiment, the structure of fixing the conductive strip 1122 to the connecting structure 113 is relatively simple, easy to manufacture and mold, and also easy to assemble.

[0124] In some embodiments, please refer to Figure 10 and Figure 12 The connecting structure 113 also includes a positioning member 1133, which passes through the snap-fit ​​hole from one side of the second snap-fit ​​hole 1121a and is connected to the connecting body 1131. At least a portion of the positioning member 1133 is located within the second snap-fit ​​hole 1121a.

[0125] In this embodiment, the positioning member 1133 fills the area inside the second card hole 1121a. The positioning member 1133 and the first bending part 1132 cooperate to improve the coverage of the cross section of the connecting structure 113 on the second card hole 1121a, thereby reducing the probability of the conductive strip 1122 and the insulating shell 1121 sliding relative to each other along their extension directions. In this way, the risk of the conductive strip 1122 and / or the insulating shell 1121 falling off the connecting structure 113 is reduced.

[0126] Here, after the positioning component 1133 is connected to the connecting body 1131, it can be further glued to make the positioning component 1133 more stable and reliable in the positioning position of the connecting body 1131.

[0127] In some embodiments, please refer to Figure 10 and Figure 12 The connecting structure 113 includes a connecting body 1131 and a second bending portion 1134 disposed on the connecting body 1131. The connecting body 1131 is disposed on the outer surface of the reinforcing structure 1112, and the second bending portion 1134 abuts against the inner surface of the reinforcing structure 1112.

[0128] The connecting body 1131 and the second bending portion 1134 can be, for example, an integral structure.

[0129] In this embodiment, the connecting structure 113 is clamped onto the reinforcing structure 1112 by the connecting body 1131 and the second bending portion 1134, thus facilitating the connection between the two.

[0130] In some embodiments, please refer to Figure 10 and Figure 12 The end of the outer static rod 111 furthest from the component to be supported is flush with the end of the reinforcing structure 1112 furthest from the component to be supported.

[0131] In other words, the bottom end of the reinforcing structure 1112 is flush with the bottom end of the outer stationary rod 111. This facilitates the connection between the support 3 and the reinforcing structure 1112.

[0132] In some embodiments, please refer to Figure 10 and Figure 12 The lifting device 1 also includes a first power line, the two ends of which are electrically connected to a power interface and a conductive component 112, respectively.

[0133] The power interface is the interface through which the lifting device 1 connects to the external power supply.

[0134] Specifically, one end of the first power line can be electrically connected to the conductive strip 1122.

[0135] Furthermore, the connecting structure 113 and the conductive strip 1122 are electrically connected, and the first power line can also be electrically connected to the connecting structure 113. In this way, the first power line is electrically connected to the conductive strip 1122 through the connecting structure 113.

[0136] For example, the first power line may be soldered to the connection structure 113, so that the first power line is electrically connected to the conductive strip 1122 through the connection structure 113.

[0137] For example, the first power line may also be soldered to the conductive strip 1122.

[0138] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 6 The lifting device 1 also includes a second power line 18, which passes through the inner moving rod 12 and is electrically connected to the electrical connector 192.

[0139] In some embodiments, please refer to Figure 10 and Figure 12 The connection structure 113 is provided with a wire groove 1131a, and one end of the first power line is located in the wire groove 1131a.

[0140] Specifically, the first power line is soldered into the wire channel 1131a. The wire channel 1131a can protect the first power line and reduce the probability of damage to the first power line. At the same time, the wire channel 1131a is formed into a channel-shaped structure with one side open, which facilitates the connection of the first power line in the wire channel 1131a.

[0141] In some embodiments, please refer to Figure 10 and Figure 12 The reinforcing structure 1112 has a wire-passing structure 1112a, and a portion of the first power line is disposed within the wire-passing structure 1112a.

[0142] The specific type of the wire-passing structure 1112a is not limited. For example, it can be a wire-passing hole or a groove structure.

[0143] In this embodiment, the wire-passing structure 1112a can protect the first power line and reduce the probability of the first power line being damaged.

[0144] In some embodiments, please refer to Figure 10 and Figure 12 The side of the conductive component 112 that is in sliding contact with the electrical connector 192 is coated with conductive grease.

[0145] For example, conductive grease is applied to the conductive strip 1122, one side of the conductive strip 1122 is attached to the insulating shell 1121, and the conductive grease is applied to the other side of the conductive strip 1122.

[0146] Conductive grease can increase the coating thickness on the surface of conductive component 112, thereby improving sliding ability and enhancing scratch resistance without affecting conductivity.

[0147] In some embodiments, please refer to Figure 10 and Figure 12 There are two conductive elements 112, which are located on opposite sides of the hollow cavity 1111a.

[0148] The two conductive components 112 are electrically connected to the positive and negative terminals of the power interface, respectively. By placing the two conductive components 112 on opposite sides of the hollow cavity 1111a, the structure of the stationary rod assembly 11 is made more symmetrical, which facilitates manufacturing and molding.

[0149] In some embodiments, the lifting device 1 includes a limiting member for limiting the movement of the inner moving rod 12 relative to the outer stationary rod 111.

[0150] In this way, the lifting device 1 has both the longest and shortest extension states. This prevents the inner moving rod 12 from sliding out of the hollow cavity 1111a as a whole, which helps to improve the reliability of the lifting device 1.

[0151] In some embodiments, please refer to Figure 6 and Figure 7 The limiting component includes an upper limit position 14, which protrudes from the surface of the inner moving rod 12. The end cap 131 and the upper limit position 14 cooperate to limit the length of the inner moving rod 12 extending relative to the outer stationary rod 111.

[0152] After the upper limit stop 14 abuts against the end cover 131, the inner moving rod 12 can no longer move upward, thus achieving the limit of the lifting device 1's rise. In this embodiment, the existing end cover 131, in conjunction with the upper limit stop 14, restricts the length of the inner moving rod 12 extending relative to the outer stationary rod 111. This facilitates the multi-functionality of the end cover 131 and reduces the overall structural complexity of the lifting device 1.

[0153] In some embodiments, please refer to Figure 6 , Figures 8 to 10 The bottom surface of the guide body 191 is formed as a lower limit 191b. After the lower limit 191b abuts against the reinforcing structure 1112, the inner moving rod 12 can no longer move downward.

[0154] In some embodiments, please refer to Figure 3 and Figure 4 The lifting device 1 includes a magnetic suction assembly 15, which is disposed on the outer stationary rod 111 and located within the hollow cavity 1111a. Specifically, the lighting equipment also includes a remote control component 4, which is attracted and fixed by the magnetic suction assembly 15, thus facilitating the storage of the remote control component 4.

[0155] In some embodiments, please refer to Figure 15 and Figure 16 The cavity wall of the hollow cavity 1111a is provided with a slot 1111b. The magnetic suction assembly 15 includes a mounting base 151 and a magnetic suction element 152. The mounting base 151 is engaged in the slot 1111b, and the magnetic suction element 152 is disposed on the mounting base 151.

[0156] By providing the slot 1111b, the installation of the magnetic component 152 is facilitated, thereby protecting the magnetic component 152 from the mounting base 151. The slot 1111b also facilitates the installation of the mounting base 151 within the hollow cavity 1111a, reducing interference caused by the mounting base 151 on the movement of the inner moving rod 12 relative to the outer stationary rod 111.

[0157] Here, the slot 1111b may extend along the extension direction of the outer stationary rod 111, the mounting base 151 is provided in the top area of ​​the slot 1111b, and the remaining area of ​​the slot 1111b may be used to set the conductive element 112.

[0158] In some embodiments, please refer to Figure 15 and Figure 16 The mounting base 151 includes a base body 1511 and an elastic body 1512 disposed on the base body 1511. The elastic body 1512 elastically abuts against the groove wall of the slot 1111b.

[0159] For example, the elastomer 1512 has a sheet-like structure.

[0160] For example, a portion of the mounting base 151 is bent and protruded, such that the bent and protruding portion forms an elastomer 1512, while the remaining portion forms the base 1511. That is, the base 1511 and the elastomer 1512 are an integral structure.

[0161] Thus, when the mounting base 151 is placed in the slot 1111b, the elastic body 1512, through its elastic action, makes the mounting base 151 and the slot wall of the slot 1111b in close contact, so that the magnetic suction assembly 15 is fixed on the cavity wall of the hollow cavity 1111a.

[0162] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lifting device, characterized in that, include: A stationary rod assembly includes an outer stationary rod, the interior of which is formed with a hollow cavity; An inner moving rod, one end of which is movably disposed within the hollow cavity along the extension direction of the outer stationary rod, is used to connect the component to be supported; An electrical connector is provided on the inner moving rod; The stationary rod assembly further includes a conductive element and a connecting structure. The conductive element is disposed in the hollow cavity and extends along the extension direction of the outer stationary rod. The conductive element is connected and fixed to the outer stationary rod through the connecting structure. The electrical connector and the conductive element are in sliding contact along the movement direction of the inner moving rod.

2. The lifting device according to claim 1, characterized in that, The outer stationary rod includes a rod body and a reinforcing structure disposed inside the rod body. The connecting structure is connected to the reinforcing structure. The conductive element has a snap-fit ​​hole, and the connecting structure is snapped into the snap-fit ​​hole.

3. The lifting device according to claim 2, characterized in that, The conductive component includes an insulating shell and a conductive strip. The conductive strip is disposed on one side of the insulating shell. The conductive strip has a first locking hole, and the insulating shell has a second locking hole. The first locking hole and the second locking hole are connected to form the locking hole. The cross-sectional area of ​​the first locking hole is smaller than the cross-sectional area of ​​the second locking hole. The connection structure includes a connection body and a first bending portion disposed on the connection body. The connection body is disposed on the side of the conductive strip away from the insulating shell. The first bending portion extends into the first card hole and abuts against the side of the conductive strip away from the connection body.

4. The lifting device according to claim 3, characterized in that, The connection structure further includes a positioning element that passes through the snap-fit ​​hole from one side of the second snap-fit ​​hole and is connected to the connection body, with at least a portion of the positioning element located within the second snap-fit ​​hole.

5. The lifting device according to any one of claims 2-4, characterized in that, The connecting structure includes a connecting body and a second bent portion disposed on the connecting body. The connecting body is disposed on the outer surface of the reinforcing structure, and the second bent portion abuts against the inner surface of the reinforcing structure; and / or The end of the outer static rod away from the member to be supported is flush with the end of the reinforcing structure away from the member to be supported.

6. The lifting device according to any one of claims 2-4, characterized in that, The lifting device also includes a first power line, the two ends of which are electrically connected to a power interface and the conductive component, respectively.

7. The lifting device according to claim 6, characterized in that, The connection structure is provided with a wire passage groove, and one end of the first power line is disposed in the wire passage groove; and / or, The reinforcing structure has a wire-passing structure, and a portion of the first power line is disposed within the wire-passing structure.

8. The lifting device according to claim 6, characterized in that, The conductive component includes a conductive strip, and the first power line is soldered to the conductive strip.

9. The lifting device according to any one of claims 1-4, characterized in that, The side of the conductive element that slides in contact with the electrical connector is coated with conductive grease; and / or, The number of conductive elements is two, and the two conductive elements are located on opposite sides of the hollow cavity.

10. A lighting device, characterized in that, include: The lifting device according to any one of claims 1-9; The lamp holder is connected to the top of the inner moving rod; A support is attached to the bottom end of the outer stationary rod; The lamp head is the support component to be supported.

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