Lifting device and lighting device

Abstract

This utility model relates to the field of lighting equipment technology, providing a lifting device and lighting equipment. The lifting device includes an outer stationary rod, an inner moving rod, and a suspension assembly. The outer stationary rod has a hollow cavity inside; a portion of the inner moving rod is located within the hollow cavity and is used to connect to the second support member; the suspension assembly includes a body and a damping element. The body is located within the hollow cavity and fixedly connected to the inner moving rod. The damping element is partially installed on the body, and its upper end moves relative to the body but remains stationary relative to the outer stationary rod. The inner moving rod can rise and fall relative to the outer stationary rod, causing the damping element to extend and retract. The damping element generates a damping force to suspend the inner moving rod. Multiple damping elements are provided and move synchronously to jointly provide damping force, with at least two damping elements interconnected. Multiple damping elements provide damping force at multiple positions, enabling the inner moving rod to suspend more promptly, thus keeping the supported member at the target height and improving the suspension reliability of the lifting device.

Description

Technical Field

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

[0002] In related technologies, the lamp head of a lighting device can be raised and lowered to adjust the illumination range by adjusting the vertical height of the light source. The lifting device in these devices can raise and lower the lamp head and then hover it after the movement is complete. However, the hovering reliability of this lifting device is poor. After the user completes the raising or lowering operation, the device will still rely on inertia to move the lamp head up or down a certain distance, failing to stop the movement of the lamp head promptly. The user then needs to fine-tune the height of the lamp head again, thus affecting usability. Utility Model Content

[0003] In view of this, the present invention provides a lifting device and a lighting device to solve the technical problem of how to improve the hovering reliability of the lifting device.

[0004] To solve the above problems, the technical solution provided by this utility model embodiment is as follows:

[0005] This utility model provides a lifting device, including: an outer stationary rod with a hollow cavity inside; an inner moving rod partially located within the hollow cavity and used to connect to a component to be supported; and a suspension assembly including a body and a damping element. The body is located within the hollow cavity and fixedly connected to the inner moving rod, and the damping element is partially installed on the body. The upper end of the damping element moves relative to the body and remains stationary relative to the outer stationary rod. The inner moving rod can rise and fall relative to the outer stationary rod, thereby causing the damping element to extend and retract. The damping element is used to generate a damping force that suspends the inner moving rod. Multiple damping elements are provided and move synchronously to collectively provide the damping force. At least two of the damping elements are interconnected so that a portion of each damping element is connected to the outer stationary rod.

[0006] In some embodiments, the plurality of damping elements includes at least a set of damping groups arranged in the vertical direction; wherein, in each pair of damping elements located adjacent to each other in the vertical direction in a set of damping groups, the upper ends of at least part of the lower damping element are detachably and directly connected to the upper ends of the upper damping element.

[0007] In some embodiments, the upper end of the damping member includes a first plug-in portion and a second plug-in portion connected below the first plug-in portion; the upper end of the damping member also has a socket, the socket being located below the second plug-in portion, the socket being configured to allow the first plug-in portion to pass through, and the second plug-in portion being disposed within the socket.

[0008] In some embodiments, the damping member further includes a slot that allows the second insertion portion to be disposed within the socket; wherein the slot is formed on one side of the second insertion portion in the width direction or is symmetrically arranged.

[0009] In some embodiments, the socket is quadrilateral, the width of the socket is greater than or equal to the width of the second plug portion, and the width of the first plug portion is less than or equal to the diagonal length of the socket, but greater than the width of the socket.

[0010] In some embodiments, the body has multiple receiving cavities for mounting the damping element, each receiving cavity is provided with a convex shaft, and each convex shaft is wound with a damping element; wherein, the upper end of the damping element extends out of the receiving cavity to connect with the outer stationary rod.

[0011] In some embodiments, in a group of damping groups, along the axial direction of the inner moving rod, the upper end of the damping member closest to the member to be supported is inserted into the outer stationary rod, and the upper ends of the remaining damping members are inserted into each other.

[0012] In some embodiments, the body includes: a first support member fixedly connected to the inner moving rod; a fixing member detachably connected to the first support member, and the receiving cavity is formed on the fixing member.

[0013] In some embodiments, the hovering assembly further includes: a first rolling assembly rotatably connected to the body; wherein the first rolling assembly rolls against the inner wall of the hollow cavity formed by the outer stationary rod.

[0014] In some embodiments, the member to be supported is located on one side of the inner moving rod in the horizontal direction, and the first rolling group is located at least on the opposite side and / or the same side of the inner moving rod and the said side.

[0015] In some embodiments, the lifting device further includes: an anti-tilt assembly, fixedly connected to the inner moving rod and spaced below the suspension assembly; wherein at least a portion of the anti-tilt assembly rolls against the outer stationary rod.

[0016] In some embodiments, the anti-tilt assembly includes: a second support member fixedly connected to the bottom end of the inner moving rod; and a second rolling assembly rotatably connected to the second support member and rollingly abutting against the inner wall of the hollow cavity formed by the outer stationary rod.

[0017] In some embodiments, the member to be supported is located on one side of the inner moving rod in the horizontal direction, the first rolling group is located at least on the same side or opposite side of the member to be supported, and the second rolling group is located at least on the opposite side of the first rolling group.

[0018] In some embodiments, the first rolling group and / or the second rolling group are provided on at least two pairs of opposite sides of the inner moving rod in the circumferential direction, respectively located on the same side, opposite side, and left and right sides of the member to be supported.

[0019] In some embodiments, the hovering assembly further includes a first connecting plate, through which the first rolling assembly is mounted on the body; and / or, the anti-roll assembly further includes a second connecting plate, through which the second rolling assembly is mounted on the second support.

[0020] In some embodiments, the ratio of the length of the body to the length of the outer stationary rod in the vertical direction is in the range of [1 / 4, 1 / 3]; and / or, the ratio of the length of the second support member to the length of the outer stationary rod in the vertical direction is in the range of [1 / 4, 1 / 3].

[0021] This utility model embodiment also provides a lighting device, which includes the above-mentioned lifting device. The lighting device further includes: a lamp head, which is connected to the top end of the inner moving rod and located on one side of the inner moving rod; and a support, which is connected to the bottom end of the outer stationary rod; wherein the lamp head is the support member.

[0022] The lifting device provided in this embodiment includes an outer stationary rod, an inner moving rod, and a suspension assembly. A portion of the inner moving rod is located within the hollow cavity of the outer stationary rod and is used to connect to the component to be supported. The suspension assembly includes a body and a damping element. The upper end of the damping element moves relative to the body and remains stationary relative to the outer stationary rod. The inner moving rod can rise and fall relative to the outer stationary rod, driving the body to rise and fall and the damping element to extend and retract. The damping element generates a damping force to suspend the inner moving rod. Thus, the lifting device in this embodiment is equipped with multiple damping elements, which move synchronously to jointly provide damping force. These multiple damping elements provide damping force to the inner moving rod at multiple positions, reducing the possibility of stress concentration caused by concentrated damping force on the inner moving rod. Furthermore, because multiple damping elements act at multiple positions, the distribution of damping force on the inner moving rod is more uniform, enabling the inner moving rod to suspend more promptly, thereby maintaining the component to be supported at the target height. This improves the suspension reliability of the lifting device and also increases the efficiency of height adjustment for the component to be supported, facilitating user operation.

[0023] The lighting device provided in this embodiment includes a lamp head, a support, and the aforementioned lifting device. Therefore, it has the same technical effect as the aforementioned lifting device. Specifically, the lamp head of the lighting device has high hovering reliability; after the user's downward pressing or upward pushing of the inner moving rod, the lifting device can promptly stop the lamp head's movement and hover it at the target height. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the lighting device provided in an embodiment of the present utility model;

[0025] Figure 2 This is a top view of the lighting device provided in an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0027] Figure 4 This is an assembly diagram showing the connection between the hovering component and the outer stationary rod provided in an embodiment of the present utility model.

[0028] Figure 5 for Figure 4 Exploded view;

[0029] Figure 6 This is a schematic diagram of the damping component provided in an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Lifting device; 11. Outer stationary rod; 111. Outer support rod; 1111. Hollow cavity; 112. Limiting component; 12. Inner moving rod; 121. First side; 122. Second side; 13. Suspension assembly; 131. Body; 1311. Receiving cavity; 1312. Protruding shaft; 1313. First support component; 1314. Fixing component; 132. Damping component; 1321. Upper end of damping component; 1322. First insertion part; 1323. Second insertion part; 1324. Socket; 1325. Slot; 133. Damping group; 133a. First damping group; 133b. Second damping group; 134. First rolling group; 135. First connecting plate; 14. Anti-tilt assembly; 141. Second support component; 142. Second rolling group; 143. Second connecting plate; 2. Lamp head; 3. Support. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this utility model will not be described separately.

[0034] In the following description, the terms "first," "second," "etc." are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the directions under normal use, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0036] like Figure 1 As shown, this embodiment of the present invention 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. It should be noted that the application scenario of this embodiment does not limit the structure of the lifting device 1.

[0037] like Figure 1 As shown, the lifting device 1 is used to connect to the second support component and adjust the height of the second support component by lifting. Specifically, the type of the second support component is adapted to the application scenario of the lifting device 1. The second support component can be a lamp head 2, a fan head, or a computer monitor.

[0038] like Figure 2 and Figure 3 As shown, the lifting device 1 includes an outer stationary rod 11, an inner moving rod 12, and a suspension assembly 13. A hollow cavity 1111 is formed inside the outer stationary rod 11. It should be noted that the hollow cavity 1111 is the area formed by the inner contour of the outer stationary rod 11, and does not exceed the outer contour boundary of the outer stationary rod 11 in the external environment. That is, the height of the hollow cavity 1111 is less than or equal to the height of the outer stationary rod 11.

[0039] like Figure 1 and Figure 3As shown, a portion of the inner moving rod 12 is located within the hollow cavity 1111, and the inner moving rod 12 is used to connect to the component to be supported. Specifically, the lower portion of the inner moving rod 12 is inserted into the hollow cavity 1111, and the other portion of the inner moving rod 12 outside the hollow cavity 1111 is connected to the component 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 11, but is always located above the outer stationary rod 11. In some possible embodiments, the component to be supported is connected to the top end of the inner moving rod 12.

[0040] like Figure 3 and Figure 4 As shown, the inner moving rod 12 can rise and fall relative to the outer stationary rod 11. The suspension assembly 13 includes a body 131 and a damping element 132. The body 131 is located inside the hollow cavity 1111 and is fixedly connected to the inner moving rod 12. The damping element 132 is partially installed on the body 131. The body 131 moves up and down with the inner moving rod 12, and drives the damping element 132 installed on the body 131 to move up and down.

[0041] like Figure 3 and Figure 5 As shown, the upper end 1321 of the damping element moves relative to the body 131 and remains stationary relative to the outer stationary rod 11. The lifting and lowering movement of the inner moving rod 12 drives the extension and retraction of the damping element 132, which generates a damping force to suspend the inner moving rod 12. Through the damping force provided by the damping element 132, the inner moving rod 12 can be suspended at any position within the lifting and lowering range, thereby achieving height adjustment of the supported component. Specifically, the upper end 1321 of the damping element can be directly assembled to the outer stationary rod 11, making the upper end 1321 of the damping element stationary relative to the outer stationary rod 11; alternatively, the upper end 1321 of the damping element can be indirectly assembled to the outer stationary rod 11 through other components. Of course, in some possible embodiments, multiple damping elements 132 can be provided, and one damping element 132 can also be indirectly assembled to the outer stationary rod 11 through another damping element 132. Specifically, two damping elements 132 can be provided. One damping element 132 is directly mounted on the outer stationary rod 11, and the other damping element 132 does not contact the outer stationary rod 11, but the two damping elements 132 are connected to each other. However, regardless of the specific connection structure between the upper end 1321 of the damping element and the outer stationary rod 11, it is sufficient that the upper end 1321 of the damping element can remain stationary relative to the outer stationary rod 11.

[0042] like Figure 3 and Figure 5As shown, it can be understood that since the upper end 1321 of the damping element is stationary relative to the outer stationary rod 11, the lifting and lowering movement of the inner moving rod 12 will not change the height of the upper end 1321 of the damping element. The lifting and lowering movement of the inner moving rod 12 drives the part of the damping element 132 mounted on the body 131 to move. Therefore, the upper end 1321 of the damping element can be simply understood as the fixed end of the damping element 132, and the end of the damping element 132 mounted on the body 131 can be simply understood as the movable end of the damping element 132. It should be noted that the above-mentioned "upper end 1321 of the damping element" does not represent the upper edge of the outer contour of the damping element 132 in a strict sense, but rather refers to the part near the upper edge of the damping element 132. Specifically, the part of the damping element 132 within 80mm of the upper edge of the damping element 132 can be called "the upper end 1321 of the damping element".

[0043] like Figure 6 As shown, for example, the damping element 132 can be a coil spring, with a portion of the coil spring wound around the body 131 and spirally coiled into a stacked cylinder, and another portion extending beyond the cylinder. Then, the portion of the coil spring that extends beyond the cylinder and is not wound around the body 131 can be simply understood as the "upper end 1321 of the damping element".

[0044] like Figures 3-5 As shown, multiple damping elements 132 are provided and move synchronously to provide damping force together. At least two damping elements 132 are interconnected. Specifically, at least two damping elements 132 can be indirectly connected, for example, each damping element 132 is mounted on the outer stationary rod 11 and is indirectly connected through the outer stationary rod 11. At least two damping elements 132 can also be directly connected, for example, each damping element 132 can be installed at intervals along the vertical direction on the body 131, and the upper ends 1321 of each damping element are connected sequentially from bottom to top. In this embodiment, the upper ends 1321 of one or more damping elements may be mounted on the outer stationary rod 11, so that the upper ends 1321 of each damping element are stationary relative to the outer stationary rod 11. Specifically, the upper end 1321 of the uppermost damping element may be mounted on the outer stationary rod 11, while the damping elements 132 at the other positions are connected in pairs.

[0045] like Figures 3-5As shown, this embodiment of the invention does not limit the specific manner in which at least two damping elements 132 are interconnected and the upper ends 1321 of all damping elements are stationary relative to the outer stationary rod 11. It is sufficient that each damping element 132 moves synchronously with the inner moving rod 12 and jointly provides damping force. Multiple damping elements 132 collectively generate a damping force that suspends the inner moving rod 12. The increased number of positions and area of ​​the damping force on the inner moving rod 12 reduces the possibility of stress concentration due to concentrated damping force. The distribution of damping force on the inner moving rod 12 is more uniform. After the inner moving rod 12 completes its lifting and lowering, the combined action of multiple damping elements 132 can more promptly prevent the inner moving rod 12 from continuing to rise or fall, allowing it to suspend more quickly. This keeps the supported component at the target height and improves the efficiency of height adjustment for the supported component. In addition, the inner moving rod 12 still relies on damping force to hover, without the need for additional limiting structures to limit the position of the inner moving rod 12. In this way, the user does not need to push the inner moving rod 12 upward or press it downward to adjust the height of the supported part, and then operate other parts to limit the inner moving rod 12. This makes the structure of the entire lifting device 1 simple, reduces the difficulty for the user to operate the lifting device 1 to adjust the height of the supported part, and facilitates the user's operation.

[0046] The lifting device 1 provided in this embodiment of the present invention includes an outer stationary rod 11, an inner moving rod 12, and a suspension assembly 13. A portion of the inner moving rod 12 is located within the hollow cavity 1111 of the outer stationary rod 11, and the inner moving rod 12 is used to connect to the component to be supported. The suspension assembly 13 includes a body 131 and a damping element 132. The body 131 is located within the hollow cavity 1111 and is fixedly connected to the inner moving rod 12. The upper end 1321 of the damping element moves relative to the body 131 and remains stationary relative to the outer stationary rod 11. The inner moving rod 12 can rise and fall relative to the outer stationary rod 11, driving the damping element 132 to extend and retract. The damping element 132 is used to generate a damping force that suspends the inner moving rod 12. Multiple damping elements 132 are provided and move synchronously to jointly provide damping force. At least two damping elements 132 are interconnected. Multiple damping elements 132 move together, providing damping force to the inner moving rod 12 at multiple positions. This reduces the possibility of stress concentration caused by the concentration of damping force on the inner moving rod 12, resulting in a more uniform distribution of damping force on the inner moving rod 12. The combined action of multiple damping elements 132 can more promptly prevent the inner moving rod 12 from continuing to rise or fall, allowing the inner moving rod 12 to hover more quickly. This keeps the supported component at the target height, improving the hovering reliability of the lifting device 1 and increasing the efficiency of height adjustment for the supported component, thus enhancing the user experience.

[0047] In some embodiments, such as Figures 3-5As shown, the plurality of damping elements 132 includes at least one set of damping groups 133 arranged in the vertical direction, that is, one set of damping groups 133 includes a plurality of damping elements 132 arranged in the vertical direction. Specifically, the plurality of damping elements 132 can form multiple sets of damping groups 133 arranged in the vertical direction, and the plurality of damping elements 132 can also form one or more damping elements 132 that are assembled independently of the damping groups 133, in addition to one or more sets of damping groups 133. When the plurality of damping elements 132 form multiple sets of damping groups 133, the multiple sets of damping groups 133 can be assembled on multiple sides of the body 131. For example, the plurality of damping elements 132 form two sets of damping groups 133, namely a first damping group 133a and a second damping group 133b, and the first damping group 133a is assembled on one side of the body 131. Figure 3 (Left side), the second damping assembly 133b is assembled on the opposite side of the main body 131. Figure 3 On the right side, the first damping group 133a and the second damping group 133b are arranged on opposite sides of the body 131. The opposite sides of the body 131 are subjected to symmetrical damping forces, thereby making the inner moving rod 12 symmetrically subjected to forces, improving the smoothness of the lifting and lowering of the inner moving rod 12, and reducing the possibility of the inner moving rod 12 tilting.

[0048] like Figures 3-5 As shown, in each pair of damping elements 132 located adjacent in the vertical direction, at least some of the damping elements have their upper ends 1321 detachably and directly connected. That is, in a set of damping groups 133, two damping elements 132 located adjacent in the vertical direction form a pair. For ease of explanation, a pair of damping elements 132 is defined as a group to be installed. Then, a set of damping groups 133 can have N groups to be installed. It can be that two damping elements 132 in [1, 2, 3...(N-1)] groups to be installed are in direct contact and detachably connected, so that the upper ends 1321 of two damping elements in some groups to be installed are detachably and directly connected. The upper ends 1321 of two damping elements in the remaining groups to be installed can be respectively assembled on the outer stationary rod 11; or it can be that two damping elements 132 in N groups to be installed are in direct contact and detachably connected, so that the upper ends 1321 of two damping elements in all groups to be installed are detachably and directly connected. It is understood that when a damping group 133 includes only two damping elements 132, only one assembly is formed, while the upper ends 1321 of the two damping elements in all assemblies are in direct contact and can be detachably connected.

[0049] Specifically, the upper ends 1321 of the two damping components in a set to be installed can be detachably connected by means of snap-fit, plug-in, connection by threaded fasteners, or bonding.

[0050] Regardless of whether the upper ends 1321 of two damping components in several assembly groups are detachably connected, and regardless of the method by which the upper ends 1321 of the two damping components are detachably connected, at least some of the upper ends 1321 of the damping components can be detachably and directly connected to the upper end 1321 of another damping component without the need for assembly onto the outer stationary rod 11. This reduces the number of damping components 132 that need to be separately assembled onto the outer stationary rod 11, thereby simplifying the assembly difficulty of multiple damping components 132 and the outer stationary rod 11. When multiple damping components 132 in a damping group 133 can be connected to each other in pairs, the damping group 133 forms a modular component that can be pre-assembled independently of the main body 131, improving the assembly efficiency of multiple damping components 132.

[0051] In some embodiments, such as Figure 5 and Figure 6 As shown, the upper end 1321 of the damping member includes a first insertion portion 1322 and a second insertion portion 1323 connected below the first insertion portion 1322. The upper end 1321 of the damping member also has a socket 1324, which is located below the second insertion portion 1323. That is, the first insertion portion 1322, the second insertion portion 1323, and the socket 1324 are arranged sequentially from top to bottom. When the first insertion portion 1322 is located at the outer edge of the outline of the damping member 132, the upper edge of the first insertion portion 1322 is the upper edge of the damping member 132, and the upper end 1321 of the damping member includes at least the portion between the upper edge of the damping member 132 and the lower edge of the socket 1324.

[0052] like Figure 5 and Figure 6 As shown, the socket 1324 is configured to allow the first insertion portion 1322 to pass through, and the second insertion portion 1323 is disposed within the socket 1324. Specifically, the socket 1324 of one damping member 132 allows the first insertion portion 1322 of another damping member 132 to pass through. For example, in a assemblies to be assembled, the socket 1324 of the upper damping member 132 allows the first insertion portion 1322 of the lower damping member 132 to pass through, and the second insertion portion 1323 of the lower damping member 132 is disposed within the socket 1324. It is understood that the first insertion part 1322 of one damping element 132 passes through the insertion port 1324 from one side of another damping element 132 to the other side of another damping element 132 and is engaged with the other side of another damping element 132. In this way, at least a portion of the damping elements 132 are interlocked with each other, which further simplifies the assembly operation of multiple damping elements 132 and improves the assembly efficiency of multiple damping elements 132.

[0053] In some embodiments, such as Figure 5 and Figure 6As shown, the damping member 132 also includes a slot 1325 that allows the second insertion portion 1323 to be disposed within the socket 1324. Specifically, when one damping member 132 is inserted into another damping member 132, the lower edge of the other socket 1324 is located between the upper and lower edges of the slot 1325 of one damping member 132, such that the first insertion portion 1322 of one damping member 132 is fixed in the position after passing through the socket 1324 of the other damping member 132.

[0054] like Figure 5 and Figure 6 As shown, the slot 1325 is provided on one side of the second insertion portion 1323 in the width direction or symmetrically arranged. Specifically, in the width direction of the second insertion portion 1323, the slot 1325 may be located on only one side of the opposite sides of the second insertion portion 1323, or it may be symmetrically arranged on the opposite sides of the second insertion portion 1323. When the slots 1325 are symmetrically arranged on the opposite sides of the second insertion portion 1323 in the width direction, the second insertion portion 1323 is located between the two slots 1325. Thus, when one damping element 132 is inserted into another damping element 132, the two slots 1325 in one damping element 132 respectively engage with the insertion port 1324 of the other damping element 132 on both sides of the second insertion portion 1323, thereby reliably fixing the second insertion portion 1323 of one damping element 132 into the insertion port 1324 of the other damping element 132, reducing the possibility of the second insertion portion 1323 of one damping element 132 disengaging from the insertion port 1324 of the other damping element 132, and improving the assembly stability after the two damping elements 132 are inserted.

[0055] It is understood that the width direction of the damping element 132 represents the direction in a three-dimensional coordinate system where the length is less than the maximum outline dimension (length dimension) and greater than the minimum outline dimension (thickness direction). The width directions of the first insertion part 1322, the second insertion part 1323, and the socket 1324 are all parallel to the width direction of the damping element 132.

[0056] In some embodiments, such as Figure 5 and Figure 6 As shown, the socket 1324 is quadrilateral; specifically, the socket 1324 can be rectangular, square, or rhomboid. The width of the socket 1324 is greater than or equal to the width of the second insertion portion 1323, so that the second insertion portion 1323 of one damping member 132 can pass through the socket 1324 of another damping member 132. The width of the first insertion portion 1322 is less than or equal to the diagonal length of the socket 1324, so that the first insertion portion 1322 of one damping member 132 can pass obliquely from one side of another damping member 132 through the diagonal of the socket 1324 of the other damping member 132 to the other side of the other damping member 132.

[0057] The width of the first insertion portion 1322 is greater than the width of the socket 1324. Thus, when the first insertion portion 1322 of one damping element 132 obliquely passes through the diagonal of the socket 1324 of another damping element 132, one damping element 132 can be fixed to the other side of the other damping element 132 simply by restoring it to a horizontal position. This design is simple, easy to implement, and reduces the assembly difficulty of connecting two damping elements 132.

[0058] In some embodiments, such as Figures 3-5 As shown, the main body 131 has multiple receiving cavities 1311 for mounting damping elements 132. Each receiving cavity 1311 contains a convex shaft 1312, and each convex shaft 1312 is wound with a damping element 132, that is, the damping element 132 is a coil spring. The upper end 1321 of the damping element extends out of the receiving cavity 1311 to connect with the outer stationary rod 11 or another damping element 132. It can be understood that any part of the coil spring extending out of the receiving cavity 1311 can be referred to as the upper end 1321 of the damping element. The part of one coil spring extending out of the receiving cavity 1311 can be directly connected to the part of another coil spring extending out of the receiving cavity 1311, or the part of one coil spring extending out of the receiving cavity 1311 can be directly assembled onto the outer stationary rod 11. In summary, each damping element 132 is partially wrapped around the corresponding convex shaft 1312 and thus located within the corresponding receiving cavity 1311. In this way, the wall surface of the body 131 forming the receiving cavity 1311 can limit the position of the damping element 132 in the circumferential direction, reducing the possibility of the damping element 132 loosening and detaching from the body 131, making the damping element 132 provide damping force more reliably, thereby improving the hovering reliability of the lifting device 1.

[0059] In some embodiments, such as Figures 3-5As shown, in a set of damping groups 133, along the axial direction of the inner moving rod 12, the upper end 1321 of the damping member closest to the component to be supported is inserted into the outer stationary rod 11, and the upper ends 1321 of the remaining damping members are inserted into each other in pairs. It should be noted that the axial direction of the inner moving rod 12 is the same as its lifting direction; in practical applications, the axial direction of the inner moving rod 12 is vertical. Therefore, the damping member 132 closest to the component to be supported is the uppermost damping member 132 in the set of damping groups 133. In other words, in a set of damping groups 133, the upper end 1321 of the uppermost damping member is inserted into the outer stationary rod 11. This configuration allows two adjacent damping elements 132 in a damping group 133 to be plugged in and connected. That is, multiple damping elements 132 in a damping group 133 form N assembly groups, and two damping elements 132 in the N assembly groups are plugged in and connected. This allows a damping group 133 to be assembled into a modular component. The entire damping group 133 is assembled onto the outer stationary rod 11 through the uppermost damping element 132. Multiple damping elements 132 in a damping group 133 have only one connection point with the outer stationary rod 11 (the upper end 1321 of the uppermost damping element). This minimizes the number of connection points between multiple damping elements 132 and the outer stationary rod 11, reduces the difficulty of assembling multiple damping elements 132 onto the outer stationary rod 11, and improves the assembly efficiency of multiple damping elements 132.

[0060] Specifically, such as Figures 3-5 As shown, the outer stationary rod 11 may include an outer support rod 111 and a limiting member 112. The outer support rod 111 forms a hollow cavity 1111 and has an opening at its top that communicates with the hollow cavity 1111. The limiting member 112 is disposed at the opening and is sleeved on the outer side of the inner moving rod 12. The limiting member 112 allows the inner moving rod 12 to pass through and is used to prevent the inner moving rod 12 from detaching from the hollow cavity 1111. In a set of damping groups 133, the upper end 1321 of the damping member closest to the member to be supported in the axial direction of the inner moving rod 12 can be assembled on the limiting member 112. When the hovering assembly 13 includes multiple sets of damping groups 133, all sets of damping groups 133 can be assembled on the limiting member 112. The assembly of multiple sets of damping groups 133 is achieved through one limiting member 112. When multiple damping members 132 are provided, the assembly operation of multiple damping members 132 is further reduced.

[0061] In some embodiments, such as Figure 3 and Figure 5As shown, the main body 131 includes a first support member 1313 and a fixing member 1314. The first support member 1313 is fixedly connected to the inner moving rod 12, and the fixing member 1314 is detachably connected to the first support member 1313. The receiving cavity 1311 is formed on the fixing member 1314. That is, the convex shaft 1312 is set on the fixing member 1314, and multiple damping elements 132 in a damping assembly 133 are all wound inside the fixing member 1314. By disassembling and assembling the fixing member 1314, the damping assembly 133 can be modularly disassembled and assembled without disassembling the first support member 1313, which facilitates the maintenance and replacement of the damping elements 132.

[0062] In some embodiments, such as Figure 3 As shown, the hovering assembly 13 also includes a first rolling group 134, which is rotatably connected to the body 131. Specifically, the first rolling group 134 may include multiple rollers, all of which are rotatably connected to the body 131. The first rolling group 134 rolls against the inner wall of the hollow cavity 1111 formed by the outer stationary rod 11. Compared to sliding friction, rolling friction has lower frictional force. The rolling contact between the first rolling group 134 and the inner wall of the hollow cavity 1111 formed by the outer stationary rod 11 improves the smoothness of the lifting and lowering of the inner moving rod 12. In addition, besides assembling multiple damping components 132, the body 131 is also equipped with the first rolling group 134, resulting in high space utilization and a compact structure. The main body 131 allows multiple damping elements 132 and the first rolling assembly 134 to be assembled into a single component, enabling the hovering assembly 13 to be pre-assembled as a modular component independently of the inner moving rod 12, thereby improving the efficiency of assembling the hovering assembly 13 between the inner moving rod 12 and the outer stationary rod 11.

[0063] It should be noted that this embodiment of the present invention does not limit the specific type of components in which the first rolling group 134 rolls against the body 131. For example, the first rolling group 134 may include multiple rollers, multiple balls, or at least one roller and at least one ball. Furthermore, this embodiment of the present invention does not limit the specific number and position of the first rolling group 134. Only one set of the first rolling group 134 may be provided, or multiple sets may be provided; one set of the first rolling group 134 may be provided on one side of the body 131, or at least two sets of the first rolling group 134 may be provided. Regardless of the specific structure, position, or number of the first rolling group 134, as long as the first rolling group 134 can roll against the body 131, thereby increasing the smoothness of the lifting and lowering of the body 131, it is acceptable.

[0064] In some embodiments, such as Figure 1 and Figure 2 As shown, the component to be supported is located on one side of the inner moving rod 12 in the horizontal direction. For example, the component to be supported is a lamp holder 2, and the lifting device 1 is applied to the lighting equipment. In the top view of the lighting equipment (e.g.) Figure 2 As shown), the lamp head 2 is located only on one side of the inner moving rod 12 to reduce the influence of the shadow of the lifting device 1 on the illumination area formed by the light from the lamp head 2 during illumination. For ease of explanation of the following embodiments, the first side 121 of the member to be supported is defined as the first side 121 of the inner moving rod 12, and the opposite side of the inner moving rod 12 to the first side 121 is defined as the second side 122.

[0065] like Figure 1 and Figure 3 As shown, the first rolling assembly 134 is located at least on the opposite side and / or the same side of the inner moving rod 12. Specifically, the first rolling assembly 134 is located on the first side 121 of the inner moving rod 12, on the same side as the member to be supported; the first rolling assembly 134 is located on the second side 122 of the inner moving rod 12, on the opposite side of the member to be supported. Regardless of whether the first rolling assembly 134 is located on the first side 121 or the second side 122 of the inner moving rod 12, the first rolling assembly 134 abuts against the outer stationary rod 11 and applies a supporting torque to the inner moving rod 12. This supporting force and the torque applied to the inner moving rod 12 by the weight of the member to be supported are on the same cross section. That is, regardless of whether the first rolling assembly 134 is located on the first side 121 or the second side 122 of the inner moving rod 12, the possibility of bending or torsional deformation of the inner moving rod 12 due to the weight of the member to be supported can be reduced. Figure 3 In the schematic diagram shown, the cross-sectional direction of the aforementioned torque and supporting force is perpendicular to the paper. Figure 2 In the schematic diagram shown, the cross-sectional direction where the torque and support force are located is perpendicular to the AA direction.

[0066] like Figure 1 and Figure 3 As shown, the first side 121 and the second side 122 of the inner moving rod 12 can also be provided with a first rolling group 134, such that the first rolling group 134 is located on the same side as the member to be supported, and on the opposite side. It can be understood that in this embodiment, at least two groups of the first rolling group 134 are provided. In this embodiment, the inner moving rod 12 is supported by the outer stationary rod 11 through the first rolling group 134 on both the first side 121 and the second side 122. The force on the inner moving rod 12 is more uniform, which reduces the possibility of the inner moving rod 12 deviating from the vertical direction during the lifting and lowering process, and improves the lifting and lowering stability of the inner moving rod 12.

[0067] In some embodiments, such as Figure 3As shown, the lifting device 1 also includes an anti-tilt assembly 14, which is fixedly connected to the inner moving rod 12 and spaced below the suspension assembly 13, i.e., there is a gap between the anti-tilt assembly 14 and the suspension assembly 13. At least a portion of the anti-tilt assembly 14 rolls against the outer stationary rod 11. Thus, the suspension assembly 13 rolls against the outer stationary rod 11 via the first rolling group 134, and the anti-tilt assembly 14 also rolls against the outer stationary rod 11 below the suspension assembly 13. The inner moving rod 12 is supported within the distance between the suspension assembly 13 and the anti-tilt assembly 14. The anti-tilt assembly 14 increases the supporting force arm of the inner moving rod 12 in the lifting direction, thereby further increasing the bending resistance of the inner moving rod 12; and it increases the number of rolling contact points between the inner moving rod 12 and the outer stationary rod 11, thereby further improving the smoothness of the lifting of the inner moving rod 12.

[0068] In some embodiments, such as Figure 3 As shown, the anti-tilt assembly 14 includes a second support member 141 and a second rolling assembly 142. The second support member 141 is fixedly connected to the bottom end of the inner moving rod 12, and the second rolling assembly 142 is rotatably connected to the second support member 141, rolling against the inner wall of the hollow cavity 1111 formed with the outer stationary rod 11. Compared to other positions on the inner moving rod 12 below the suspension assembly 13, the second support member 141 mounts the second rolling assembly 142 at the bottom end of the inner moving rod 12, maximizing the distance between the suspension assembly 13 and the anti-tilt assembly 14. This maximizes the lever arm of the inner moving rod 12 supported by the rollers in the lifting direction, further improving the bending resistance of the inner moving rod 12 and reducing the possibility of bending or tilting.

[0069] It should be noted that this embodiment of the present invention does not limit the specific type of components of the second rolling group 142 that roll against the inner wall of the hollow cavity 1111 formed by the outer stationary rod 11. For example, the second rolling group 142 may include multiple rollers, multiple balls, or at least one roller and at least one ball. Furthermore, this embodiment of the present invention does not limit the specific number and position of the second rolling group 142. Only one set of the second rolling group 142 may be provided, or multiple sets may be provided; only one set of the second rolling group 142 may be provided on one side of the second support member 141, or multiple sets may be provided. Regardless of the specific structure, position, or number of the second rolling group 142, as long as the second rolling group 142 can roll against the second support member 141, thereby increasing the smoothness of the lifting and lowering of the second support member 141, it is acceptable.

[0070] In some embodiments, such as Figure 1 and Figure 3As shown, the member to be supported is located on one side of the inner moving rod 12 in the horizontal direction. The first rolling group 134 is located at least on the same side or opposite side of the member to be supported, and the second rolling group 142 is located at least on the opposite side of the first rolling group 134. For ease of understanding, the member to be supported is defined as being located on the first side 121 of the inner moving rod 12, and the opposite side of the inner moving rod 12 to the first side 121 is defined as the second side 122. That is, the first rolling group 134 is provided on at least one of the first side 121 and the second side 122. If the first rolling group 134 is only provided on the first side 121, the second rolling group 142 is at least provided on the second side 122; if the first rolling group 134 is only provided on the second side 122, the second rolling group 142 is at least provided on the first side 121. Regardless of whether the first rolling assembly 134 is located on the first side 121 or the second side 122, the second rolling assembly 142 is always located on at least one side of the inner moving rod 12 opposite to the first rolling assembly 134. That is, the first rolling assembly 134 and the second rolling assembly 142 are on opposite sides of the inner moving rod 12, with one side being the same side as the member to be supported. The supporting force exerted by the first rolling assembly 134 and the second rolling assembly 142 on the inner moving rod 12 is on the same cross section as the torque exerted by the weight of the member to be supported on the inner moving rod 12. Furthermore, the first rolling assembly 134 and the second rolling assembly 142 resist the torque exerted by the member to be supported on opposite sides of the inner moving rod 12, resulting in a more uniform and symmetrical supporting force on the inner moving rod 12. This further reduces the possibility of the inner moving rod 12 bending or tilting relative to the vertical direction.

[0071] In some embodiments, such as Figure 3 and Figure 4 As shown, a first rolling group 134 and / or a second rolling group 142 are respectively provided on at least two pairs of opposite sides of the inner moving rod 12. Specifically, the cross-section of the inner moving rod 12 in the horizontal direction can be quadrilateral, such as a rectangle, so the inner moving rod 12 has only four sides. It can be understood that in this embodiment, each side of the inner moving rod 12 is provided with a first rolling group 134 and / or a second rolling group 142.

[0072] Of course, in some possible implementations, the cross-section of the inner moving rod 12 in the horizontal direction may not be quadrilateral, but may have multiple pairs of opposing sides, such as a regular hexagon. In this embodiment, the inner moving rod 12 has three pairs of opposing sides, which may be that all three pairs of sides are provided with the first rolling group 134 and / or the second rolling group 142, or that two of the three pairs of sides are respectively provided with the first rolling group 134 and / or the second rolling group 142.

[0073] Regardless of which of the aforementioned schemes the first rolling group 134 and the second rolling group 142 are arranged on the side of the inner moving rod 12, the inner moving rod 12 has at least two pairs of opposite sides respectively provided with the first rolling group 134 and / or the second rolling group 142. That is, the first rolling group 134 and / or the second rolling group 142 are arranged on at least four sides of the inner moving rod 12. When the cross-section of the inner moving rod 12 in the horizontal direction is rectangular, each side of the inner moving rod 12 is respectively provided with the first rolling group 134 and / or the second rolling group 142, thereby increasing the gap between the inner moving rod 12 and the outer stationary rod 11, reducing the disturbance between the inner moving rod 12 and the outer stationary rod 11, and improving the smoothness of the inner moving rod 12 rising and falling relative to the outer stationary rod 11.

[0074] In some embodiments, such as Figure 3 , Figure 4 As shown, the hovering assembly 13 also includes a first connecting plate 135, and a first rolling group 134 is mounted on the body 131 via the first connecting plate 135. That is, the first connecting plate 135 is mounted on the body 131, the first rolling group 134 is mounted on the first connecting plate 135, and is rotatably connected to the body 131 via the first connecting plate 135. It should be noted that the number of first connecting plates 135 is related to the number of first rolling groups 134. One set of first rolling groups 134 is mounted on one first connecting plate 135, and one set of first rolling groups 134 may include multiple rollers and / or balls. When multiple sets of first rolling groups 134 are provided, multiple first connecting plates 135 are also provided.

[0075] In some embodiments, such as Figure 3 , Figure 4 As shown, the anti-tilt assembly 14 also includes a second connecting plate 143, and the second rolling group 142 is mounted on the second support member 141 via the second connecting plate 143. That is, the second connecting plate 143 is mounted on the second support member 141, the second rolling group 142 is mounted on the second connecting plate 143, and is rotatably connected to the second support member 141 via the second connecting plate 143. It should be noted that the number of second connecting plates 143 is related to the number of second rolling groups 142. One set of second rolling groups 142 is mounted on one second connecting plate 143, and one set of second rolling groups 142 may include multiple rollers and / or balls. When multiple sets of second rolling groups 142 are provided, multiple second connecting plates 143 are also provided.

[0076] Furthermore, in such Figure 3 , Figure 4In the illustrated embodiment, the first rolling assembly 134 is mounted on the body 131 via a first connecting plate, and the second rolling assembly 142 is mounted on the body 131 and the second support member 141 via a second connecting plate 143. This method simplifies the assembly process of the lifting device 1. After assembling the first rolling assembly 134 with the first connecting plate 135 and the second rolling assembly 142 with the second connecting plate 143, the first connecting plate 135 is directly mounted on the body 131, and the second connecting plate 143 is mounted on the second support member 141, thus reducing the time required for assembling the first rolling assembly 134 and the second rolling assembly 142. Furthermore, the addition of the first connecting plate 135 increases the thickness of the support for the first rolling assembly 134 to a certain extent. Similarly, the addition of the second connecting plate 143 increases the thickness of the support for the second rolling assembly 142 to a certain extent, further reducing the possibility of bending of the outer stationary rod 11 and the inner moving rod 12, improving the bending strength of the lifting device 1, and enhancing the aesthetics of the product.

[0077] In some embodiments, such as Figure 3 and Figure 4 As shown, along the vertical direction, the ratio of the length of the main body 131 to the length of the outer stationary rod 11 is within the range of [1 / 4, 1 / 3]. It can be understood that the length of the main body 131 represents the length between its two ends in the extension direction, i.e., the maximum outline dimension of the main body 131 in the three-dimensional coordinate system; correspondingly, the length of the outer stationary rod 11 represents the length between its two ends in the extension direction, which is also the maximum outline dimension of the outer stationary rod 11 in the three-dimensional coordinate system.

[0078] In some embodiments, such as Figure 3 and Figure 4 As shown, along the vertical direction, the ratio of the length of the second support member 141 to the length of the outer stationary rod 11 is within the range of [1 / 4, 1 / 3]. It can be understood that the length of the second support member 141 represents the length between its two opposite ends in the extending direction of the second support member 141.

[0079] like Figure 3 and Figure 4As shown, this embodiment of the invention maximizes the length of the body 131 by limiting the length of the body 131 and the second support member 141, thereby providing a greater number of first rolling groups 134 and a greater number of second rolling groups 142. This extends the support arm of the rollers on the inner moving rod 12, improving the bending resistance of the inner moving rod 12. Simultaneously, maintaining a large distance between the body 131 and the second support member 141 reduces the possibility of wasted space on the body 131 and the second support member 141, and reduces the self-weight of the body 131 and the second support member 141, thereby reducing the downward force exerted by the body 131 and the second support member 141 on the inner moving rod 12. This reduces the damping force required to hover the inner moving rod 12, improving the reliability and stability of the inner moving rod 12's hovering.

[0080] like Figure 1 and Figure 2 As shown, this embodiment of the present invention also provides a lighting device, which includes a lifting device 1, a lamp head 2, and a support 3, wherein the lamp head 2 is a support component. The lamp head 2 is connected to the top of the inner moving rod 12 and located on one side of the inner moving rod 12, reducing the influence of the shadow of the lifting device 1 on the lighting area formed by the light from the lamp head 2 during lighting. The support 3 is connected to the bottom of the outer stationary rod 11, forming the base of the outer stationary rod 11, for fixing and supporting the outer stationary rod 11. When the inner moving rod 12 is nested inside the outer stationary rod 11, the lamp head 2 of the lighting device in this embodiment of the present invention is in its highest position. That is, the initial position of the lighting device in this embodiment of the present invention is the highest position of the lamp head 2. When the user needs to adjust the position of the light source vertically, he only needs to press down the inner moving rod 12 to lower the height of the lamp head 2, thereby realizing the adjustment of the lighting height.

[0081] Since the lighting equipment includes the aforementioned lifting device 1, it has the same technical effect as the aforementioned lifting device 1, namely, the lamp head 2 of the lighting equipment has strong suspension reliability. After the user finishes pressing down or pushing up the inner moving rod 12, the lifting device 1 can drive the lamp head 2 to stop moving in a timely manner, so as to reduce the possibility that the lamp head 2 will continue to rise or fall a certain distance due to inertia, so that the lamp head 2 can stop at the target height without the need to fine-tune the height of the lamp head 2 again, which improves the efficiency of the user in adjusting the height of the lamp head 2 and makes it convenient for the user to use.

[0082] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting device, characterized in that, include: The outer stationary rod has a hollow cavity inside. An inner moving rod is partially located within the hollow cavity, and the inner moving rod is used to connect the component to be supported; A hovering assembly includes a body and a damping element. The body is located inside the hollow cavity and is fixedly connected to the inner moving rod. The damping element is partially installed on the body, and the upper end of the damping element moves relative to the body and is stationary relative to the outer stationary rod. The inner moving rod can rise and fall relative to the outer stationary rod and drive the damping element to extend and retract. The damping element is used to generate a damping force that suspends the inner moving rod. The damping element is provided in multiple ways and moves synchronously to provide the damping force, and at least two of the damping elements are interconnected.

2. The lifting device according to claim 1, characterized in that, The plurality of damping elements include at least one damping group arranged in the vertical direction; In each pair of damping elements located adjacent to each other in the vertical direction, at least some of the upper ends of the damping elements are detachably and directly connected.

3. The lifting device according to claim 2, characterized in that, The upper end of the damping member includes a first plug-in portion and a second plug-in portion connected below the first plug-in portion; The upper end of the damping member is also provided with a socket, which is located below the second plug-in portion. The socket is configured to allow the first plug-in portion to pass through, and the second plug-in portion is disposed within the socket.

4. The lifting device according to claim 3, characterized in that, The damping component also includes a slot that allows the second insertion portion to be disposed within the socket; The slot is located on one side of the second insertion part in the width direction or is symmetrically arranged.

5. The lifting device according to claim 3, characterized in that, The socket is quadrilateral, and the width of the socket is greater than or equal to the width of the second connector. The width of the first connector is less than or equal to the diagonal length of the socket, but greater than the width of the socket.

6. The lifting device according to claim 2, characterized in that, The main body has multiple receiving cavities for installing the damping element, each receiving cavity is provided with a convex shaft, and each convex shaft is wound with a damping element. The upper end of the damping element extends out of the receiving cavity to connect with the outer stationary rod.

7. The lifting device according to claim 2, characterized in that, In one set of damping groups, in the axial direction of the inner moving rod, the upper end of the damping member closest to the member to be supported is inserted and connected to the outer stationary rod, and the upper ends of the remaining damping members are inserted and connected in pairs.

8. The lifting device according to claim 6, characterized in that, The body includes: The first support member is fixedly connected to the inner moving rod; The fixing member is detachably connected to the first support member, and the receiving cavity is formed on the fixing member.

9. The lifting device according to any one of claims 1 to 8, characterized in that, The hovering component also includes: The first rolling assembly is rotatably connected to the main body; The first rolling assembly rolls against the inner wall of the hollow cavity formed by the outer stationary rod.

10. The lifting device according to claim 9, characterized in that, The member to be supported is located on one side of the inner moving rod in the horizontal direction, and the first rolling group is located at least on the opposite side and / or the same side of the inner moving rod and the one side.

11. The lifting device according to claim 9, characterized in that, The lifting device also includes: An anti-roll component is fixedly connected to the inner moving rod and is spaced apart below the suspension component; At least a portion of the anti-tilt component rolls into contact with the outer stationary rod.

12. The lifting device according to claim 11, characterized in that, The anti-tilt assembly includes: The second support member is fixedly connected to the bottom end of the inner moving rod; The second rolling assembly is rotatably connected to the second support member and rolls against the inner wall of the hollow cavity formed by the outer stationary rod.

13. The lifting device according to claim 12, characterized in that, The member to be supported is located on one side of the inner moving rod in the horizontal direction, the first rolling group is located at least on the same side or opposite side of the member to be supported, and the second rolling group is located at least on the opposite side of the first rolling group.

14. The lifting device according to claim 13, characterized in that, The first rolling group and / or the second rolling group are respectively provided on at least two pairs of opposite sides of the inner moving rod.

15. The lifting device according to claim 12, characterized in that, The hovering assembly further includes a first connecting plate, and the first rolling assembly is mounted on the body via the first connecting plate; And / or, the anti-tilt assembly further includes a second connecting plate, the second rolling assembly being mounted on the second support via the second connecting plate.

16. The lifting device according to claim 12, characterized in that, Along the vertical direction, the ratio of the length of the main body to the length of the outer stationary rod is within the range of [1 / 4, 1 / 3]. And / or, along the vertical direction, the ratio of the length of the second support member to the length of the outer stationary rod is in the range of [1 / 4, 1 / 3].

17. A lighting device, characterized in that, The lighting device further includes the lifting device according to any one of claims 1 to 16, and further includes: The lamp holder is connected to the top of the inner moving rod and is located on one side 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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