Lifting device and lighting device

Abstract

This utility model relates to the field of lighting equipment technology, providing a lifting device and a lighting device. The lifting device includes a power supply assembly, an outer rod, an inner rod, a first electrical connector, and a second electrical connector. The outer rod has a hollow cavity inside, and the power supply assembly is located within the hollow cavity. The inner rod is used to connect electrical components and is at least partially located within the hollow cavity, positioned above the power supply assembly. The first electrical connector is used to electrically connect to the power supply assembly and is fixed to the outer rod. The second electrical connector is used to electrically connect to the electrical components and is fixed to the inner rod. The second electrical connector rises and falls with the inner rod and remains in contact with the first electrical connector within the lifting distance of the inner rod, thereby ensuring electrical connection between the electrical components and the power supply assembly. In this embodiment of the utility model, the lifting device uses two mutually abutting electrical connectors to connect the electrical components and the power supply assembly, resulting in high reliability of the internal circuit connection of the lifting device, thus improving the reliability of the lighting equipment's circuit connection.

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 using a lifting device to adjust the illumination range of the light source by adjusting the height of the lamp head. However, in these technologies, the power base located at the lower end of the lifting device requires a cable to be threaded through the lifting device to achieve electrical connection with the lamp head at the upper end. Thus, during the raising and lowering process of the lifting device, the cable needs to be repeatedly bent and / or deformed, which may lead to cable entanglement and damage, affecting the reliability of the circuit connection. 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 reliability of the internal circuit connection 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 embodiment provides a lifting device, including: a power supply assembly; an outer rod with a hollow cavity formed inside, the power supply assembly being located within the hollow cavity; an inner rod for connecting electrical components, and at least partially located within the hollow cavity, the inner rod being positioned above the power supply assembly; a first electrical connector for electrically connecting to the power supply assembly and fixed to the outer rod; and a second electrical connector for electrically connecting to the electrical components and fixed to the inner rod; wherein the second electrical connector rises and falls with the inner rod, and remains in contact with the first electrical connector within the liftable distance of the inner rod, so that the electrical components and the power supply assembly are electrically connected.

[0006] In some embodiments, the first electrical connector extends along the lifting direction of the second electrical connector, and the extension length of the first electrical connector is greater than the lifting distance of the inner rod; and / or, the second electrical connector extends in a horizontal direction and is installed at the bottom end of the inner rod.

[0007] In some embodiments, a slot is provided on the inner side of the outer rod, and the first electrical connector is inserted into the slot.

[0008] In some embodiments, the first electrical connector includes: a conductive strip for conducting electricity; an insulating shell inserted into the slot and partially covering the conductive strip; wherein the insulating shell has an opening on one side facing the central axis of the hollow cavity, and the second electrical connector abuts against the first electrical connector through the opening.

[0009] In some embodiments, two second electrical connectors are arranged opposite each other in the horizontal direction; and / or, at least two second electrical connectors are arranged at intervals along the lifting direction of the inner rod.

[0010] In some embodiments, the first electrical connector and the second electrical connector are in resilient electrical contact.

[0011] In some embodiments, the second electrical connector includes: a housing with a limiting groove; a conductive post that slides relative to the housing and is partially located within the limiting groove; and an elastic member disposed within the limiting groove and abutting between the housing and the conductive post; wherein the elastic member is compressed and deformed in a horizontal direction.

[0012] In some embodiments, the lifting device further includes: a body mounted on the inner rod to move up and down with the inner rod; multiple rollers, each rotatably connected to at least two opposite sides of the body, the rollers rollingly abutting against the inner side of the outer rod; wherein the second electrical connector is fixed to the body to move up and down with the body.

[0013] In some embodiments, the lifting device further includes: a fixing block fixed to the bottom end of the body, wherein multiple second electrical connectors are provided, and each second electrical connector is installed on the fixing block; and / or, two circuit boards are arranged opposite each other, and each circuit board is provided with at least two second electrical connectors at intervals; and / or, an insulating sleeve for insulation, wherein the portion of the second electrical connector connected to the power supply assembly is disposed inside the insulating sleeve and passes through the insulating sleeve to abut against the first electrical connector.

[0014] In some embodiments, the lifting device further includes: a sliding body installed on the inner rod to move up and down with the inner rod; and multiple pulleys respectively rotatably connected to at least two opposite sides of the sliding body, the pulleys rollingly abutting against the inner side of the outer rod; wherein the sliding body is located above the main body and spaced apart from the main body.

[0015] This utility model embodiment also provides a lighting device, which includes the above-mentioned lifting device. The lighting device further includes: a lamp head connected to the top end of the inner rod; and a base connected to the bottom end of the outer rod; wherein the lamp head is the electrical component.

[0016] This utility model provides a lifting device including a power supply assembly, an outer rod, an inner rod, a first electrical connector, and a second electrical connector. The power supply assembly is located within the hollow cavity of the outer rod. The inner rod is used to connect electrical components and can be raised and lowered relative to the outer rod. The first electrical connector is used to electrically connect to the power supply assembly and is fixed to the outer rod; the second electrical connector is used to electrically connect to the electrical components and is fixed to the inner rod. The second electrical connector rises and falls with the inner rod and remains in contact with the first electrical connector within the liftable distance of the inner rod, thereby ensuring electrical connection between the electrical components and the power supply assembly. In this embodiment of the invention, the lifting device uses two mutually abutting electrical connectors to connect the electrical components and the power supply assembly. The second electrical connector rises and falls with the inner rod. The lifting space of the second electrical connector shares the height space of the first electrical connector, which can shorten the total length of the first and second electrical connectors. The two electrical connectors do not need to rely on repeated bending and / or deformation to shorten the total length of the first and second electrical connectors to adapt to the shortening distance between the electrical components and the power supply assembly. Therefore, there will be no problem of the first and / or second electrical connectors becoming entangled or damaged due to the rising and falling of the inner rod. This improves the reliability of the internal circuit connection of the lifting device, thereby improving the reliability of the circuit connection between the electrical components and the power supply assembly, and facilitating the more stable use of the electrical components.

[0017] The present invention provides a lighting device comprising a lamp head, a base, and the aforementioned lifting device. Therefore, it achieves the same technical effect as the aforementioned lifting device, namely, reducing the impact of the inner rod's lifting movement on the circuit connection, making the circuit supplying power to the lamp head more reliable, and maintaining the stability of the lamp head's illumination. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the lighting device provided in an embodiment of the present utility model;

[0019] Figure 2 This is a top view of the lighting device provided in an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0021] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 for Figure 3 A cross-sectional view along the CC direction;

[0023] Figure 6 An assembly diagram of the second electrical connector provided in an embodiment of this utility model;

[0024] Figure 7 for Figure 2 A cross-sectional view along the DD direction.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Lifting device; 11. Power supply assembly; 12. Outer rod; 121. Hollow cavity; 122. Slot; 13. Inner rod; 14. First electrical connector; 141. Conductive strip; 142. Insulating shell; 1421. Opening; 15. Second electrical connector; 151. Housing; 1511. Limiting groove; 152. Conductive post; 16. First sliding group; 161. Body; 162. Roller; 17. Second sliding group; 171. Sliding body; 172. Pulley; 181. Fixing block; 182. Circuit board; 183. Insulating sleeve; 2. Lamp head; 3. Base. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figure 1As 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.

[0032] like Figure 1 As shown, the lifting device 1 can be used for electrical components that require height adjustment, thereby adjusting the height of the electrical components. Specifically, the type of electrical component is adapted to the application scenario of the lifting device 1; that is, the electrical component can be a lamp holder 2, a fan head, or a computer monitor, etc.

[0033] like Figure 2 and Figure 3 As shown, the lifting device 1 includes a power supply assembly 11, an outer rod 12, an inner rod 13, a first electrical connector 14, and a second electrical connector 15. The power supply assembly 11 is used to connect to the mains power and supply power to the electrical components. A hollow cavity 121 is formed inside the outer rod 12, and the power supply assembly 11 is located inside the hollow cavity 121. It should be noted that the hollow cavity 121 is the internal space formed by the outline of the outer rod 12 and does not exceed the outer outline boundary of the outer rod 12, that is, the height of the hollow cavity 121 is less than or equal to the height of the outer rod 12.

[0034] The inner rod 13 is used to connect electrical components and is at least partially located within the hollow cavity 121. Specifically, the lower portion of the inner rod 13 is inserted into the hollow cavity 121 of the outer rod 12, and at least the top end of the inner rod 13 is outside the height range of the outer rod 12, but is always located above the outer rod 12.

[0035] like Figure 2 and Figure 3 As shown, the inner rod 13 is located above the power supply assembly 11 and can be raised and lowered relative to the outer rod 12. The raising and lowering of the inner rod 13 drives the electrical components to adjust their height. The raising and lowering distance of the inner rod 13 is above the power supply assembly 11. The upper part of the height range of the hollow cavity 121 is used for the raising and lowering of the inner rod 13, and the lower part of the height range of the hollow cavity 121 is used for the installation of the power supply assembly 11. The hollow cavity 121 is relatively long, making full use of the height space of the outer rod 12 for the arrangement of components. The structure is compact and the space utilization rate is high.

[0036] like Figure 3 and Figure 4As shown, the first electrical connector 14 is used for electrical connection with the power supply assembly 11 and is fixed to the outer rod 12. The second electrical connector 15 is used for electrical connection with the electrical device and is fixed to the inner rod 13. The second electrical connector 15 moves up and down with the inner rod 13 and remains in contact with the first electrical connector 14 within the movable distance of the inner rod 13, so that the electrical device and the power supply assembly 11 are electrically connected. Both the first electrical connector 14 and the second electrical connector 15 are conductive. Electrical energy flows from the power supply assembly 11 to the first electrical connector 14, then to the second electrical connector 15 which is in contact with the first electrical connector 14, and finally to the electrical device that is electrically connected to the second electrical connector 15, so that the electrical device can be powered on and used.

[0037] It is understood that both the first electrical connector 14 and the second electrical connector 15 have surfaces that can contact each other and both have a certain degree of rigidity, enabling them to abut against each other. Specifically, the first electrical connector 14 can be a copper strip or a flexible circuit board, while the second electrical connector 15 can be a spring pin or a copper pillar. Alternatively, the second electrical connector 15 can be a copper strip or a flexible circuit board, while the first electrical connector 14 can be a spring pin or a copper pillar. Regardless of which of the aforementioned methods is used for the specific type of the first electrical connector 14 or the second electrical connector 15, at least the first electrical connector 14 is distinct from a cable.

[0038] The relevant technology uses cables to connect electrical components and power supply components. Therefore, the length of the cable must be at least equal to the maximum distance between the electrical components and power supply components, including the lifting distance of the inner rod. As the inner rod descends relative to the outer rod, the distance between the electrical components and power supply components decreases, and the cable length exceeds this distance. This leads to cable bending and / or deformation. During frequent lifting and lowering of the inner rod, the cable is prone to tangling, causing strain on the electrical connections of the power supply components and / or electrical components during the upward movement of the inner rod. This can easily cause the electrical connections between the electrical components and / or power supply components and the cable to loosen or break, affecting the reliability of the circuit connections between the electrical components and power supply components.

[0039] The lifting device 1 provided by this utility model is equipped with a first electrical connector 14 and a second electrical connector 15 with a certain degree of rigidity, which abut against each other to realize the electrical connection between the electrical components and the power supply assembly 11. No cables are required within the lifting distance of the inner rod 13, thus avoiding problems such as cable entanglement and damage caused by the lifting of the inner rod 13, and improving the reliability of the circuit connection between the electrical components and the power supply assembly 11.

[0040] The lifting device 1 provided in this embodiment of the present invention includes a power supply assembly 11, an outer rod 12, an inner rod 13, a first electrical connector 14, and a second electrical connector 15. The power supply assembly 11 is located within the hollow cavity 121 of the outer rod 12. The inner rod 13 is used to connect electrical components and can be raised and lowered relative to the outer rod 12. The first electrical connector 14 is used to electrically connect to the power supply assembly 11 and is fixed to the outer rod 12; the second electrical connector 15 is used to electrically connect to the electrical components and is fixed to the inner rod 13. The second electrical connector 15 rises and falls with the inner rod 13 and remains in contact with the first electrical connector 14 within the liftable distance of the inner rod 13, so that the electrical components and the power supply assembly 11 are electrically connected. Compared to using a long cable to connect the electrical components and power supply assembly 11 within the lifting device 1, the lifting device 1 in this embodiment uses two mutually abutting electrical connectors to connect the electrical components and power supply assembly 11. Both electrical connectors have surfaces that can contact each other and a certain degree of hardness. The second electrical connector 15 rises and falls with the inner rod 13. The lifting distance of the second electrical connector 15 shares the height space of the first electrical connector 14, which can shorten the total length of the first electrical connector 14 and the second electrical connector 15. The two electrical connectors do not need to rely on repeated bending and / or deformation to shorten the total length of the first electrical connector 14 and the second electrical connector 15 to adapt to the shortening of the distance between the electrical components and the power supply assembly 11. Therefore, there will be no problem of the first electrical connector 14 and / or the second electrical connector 15 becoming entangled or damaged due to the rising and falling of the inner rod 13, thus improving the reliability of the circuit connection between the electrical components and the power supply assembly 11.

[0041] In some embodiments, such as Figure 3 and Figure 4 As shown, the first electrical connector 14 extends along the lifting direction of the second electrical connector 15, and the extension length of the first electrical connector 14 is greater than the lifting distance of the inner rod 13. The extension direction of the first electrical connector 14 is the direction in which the first electrical connector 14 has the largest dimension in the three-dimensional coordinate system, and this direction is in the lifting direction. The first electrical connector rod has a relatively long length in the lifting direction, which allows it to maintain a relatively stable contact with the second electrical connector 15 within the lifting distance of the inner rod 13, further improving the reliability of the circuit connection.

[0042] In some embodiments, such as Figure 3 and Figure 4As shown, the second electrical connector 15 extends horizontally and is installed at the bottom end of the inner rod 13. That is, the direction in which the second electrical connector 15 has the largest dimension in the three-dimensional coordinate system is horizontal, so the second electrical connector 15 can be a spring pin or a copper pillar. Installing the second electrical connector 15 at the bottom end of the inner rod 13, compared to installing it at other positions on the inner rod 13 (such as the top of the inner rod 13), shortens the distance between the second electrical connector 15 and the power supply assembly 11, thereby shortening the length of the first electrical connector 14 connected to the power supply assembly 11 and the second electrical connector 15, facilitating the processing and assembly of the first electrical connector 14.

[0043] It should be noted that the lifting direction of the aforementioned inner rod 13 is the direction in which the dimensions of the inner rod 13 and the outer rod 12 are largest in the three-dimensional coordinate system, and it is also the direction of the electrical components (refer to...). Figure 1 The vertical direction is relative to the ground; the horizontal direction is perpendicular to the lifting direction. In practical applications, the lifting direction is roughly perpendicular to the ground, and the horizontal direction is roughly horizontal. However, the horizontal direction is not required to be strictly at a 0-degree angle to the ground. Considering practical errors, the horizontal direction can be understood as an angle within 5 degrees to the ground. Correspondingly, the lifting direction is also not required to be strictly at a 90-degree angle to the ground.

[0044] In some embodiments, such as Figure 5 As shown, a slot 122 is provided on the inner side of the outer rod 12, and the first electrical connector 14 is inserted into the slot 122. The assembly operation of the first electrical connector 14 can be realized simply by inserting the first electrical connector 14 into the slot 122, which facilitates the assembly and disassembly of the first electrical connector 14.

[0045] In some embodiments, such as Figure 5As shown, the first electrical connector 14 includes a conductive strip 141 and an insulating shell 142. The conductive strip 141 conducts electricity, and the insulating shell 142 is inserted into the slot 122 and partially covers the conductive strip 141. Thus, the insulating shell 142 is positioned between the conductive strip 141 and the outer rod 12, forming an insulating layer and reducing the possibility of accidental contact by the user when operating the outer rod 12 due to leakage from the conductive strip 141. The insulating shell 142 has an opening 1421 on one side facing the central axis of the hollow cavity 121. The second electrical connector 15 abuts against the first electrical connector 14 through the opening 1421, that is, the second electrical connector 15 enters the slot 122 through the opening 1421 and abuts against the first electrical connector 14. The outline of the opening 1421 formed by the insulating shell 142 limits the second electrical connector 15 that passes through the opening 1421, reducing the possibility of the second electrical connector 15 tilting during the lifting and lowering process along the inner rod 13. The first electrical connector 14 and the second electrical connector 15 maintain a relatively reliable contact during the lifting and lowering process of the inner rod 13, further improving the reliability of the internal circuit connection of the lifting device 1.

[0046] In some embodiments, such as Figure 4 and Figure 5 As shown, there are two second electrical connectors 15 arranged opposite each other in the horizontal direction, and / or there are at least two second electrical connectors 15 arranged at intervals along the lifting direction of the inner rod 13.

[0047] Specifically, there may be two second electrical connectors 15 arranged opposite each other in the horizontal direction. Since the first electrical connector 14 and the second electrical connector 15 are in contact, there are also two first electrical connectors 14 arranged opposite each other in the horizontal direction, so that each first electrical connector 14 is in contact with one second electrical connector 15.

[0048] Alternatively, at least two second electrical connectors 15 may be provided along the lifting direction of the inner rod 13. That is, multiple second electrical connectors 15 may be provided along the lifting direction of the inner rod 13 to form a group of second electrical connectors. Each group of second electrical connectors is located on one side of the inner rod 13 and abuts against a first electrical connector 14.

[0049] In some possible implementations, two first electrical connectors 14 may be arranged opposite each other in the horizontal direction, and multiple second electrical connectors 15 may be arranged in two sets of second electrical connection groups in the horizontal direction. Each set of second electrical connection groups includes multiple second electrical connectors 15 spaced apart along the lifting direction, such that each first electrical connector 14 is electrically connected to a set of second electrical connection groups. In this embodiment, the inner rod 13 has circuit connections on both opposite sides, that is, two symmetrical sets of circuits are formed inside the lifting device 1, and each set of circuits has multiple circuit connection positions.

[0050] Regardless of which of the aforementioned embodiments the number of the first electrical connector 14 and the second electrical connector 15 is specifically set in, there are multiple second electrical connectors 15. The increased number of contact positions between the first electrical connector 14 and the second electrical connector 15 increases the circuit contact area between the electrical components and the power supply assembly 11. Even if one circuit connection position fails, the other circuit connection positions can be guaranteed to be effective, thus maintaining the electrical connection between the electrical components and the power supply assembly 11, further increasing the reliability of the internal circuit connection of the lifting device 1.

[0051] In some embodiments, such as Figure 5 As shown, the first electrical connector 14 and the second electrical connector 15 are in elastic electrical contact. Specifically, either the first electrical connector 14 or the second electrical connector 15 can be connected to a spring, allowing for elastic contact between the two connectors. The elastic force between the first and second electrical connectors 14 and 15 increases the contact force, ensuring they are firmly pressed together. This reduces the possibility of the first and second electrical connectors 14 and 15 disengaging and affecting the stability of the circuit connection. Simultaneously, the electrical contact between the first and second electrical connectors 14 and 15 allows for the transfer of electrical energy between them, thus achieving the function of transmitting electrical energy.

[0052] In some embodiments, such as Figure 5 and Figure 6 As shown, the second electrical connector 15 includes a housing 151, a conductive post 152, and an elastic element (not shown). The housing 151 has a limiting groove 1511. The conductive post 152 slides relative to the housing 151 and is partially located within the limiting groove 1511. The limiting groove 1511 guides the sliding of the conductive post 152, allowing it to slide in a straight line. The elastic element is disposed within the limiting groove 1511 and abuts against the housing 151 and the conductive post 152. The elastic element undergoes horizontal compression deformation. It can be understood that the spring has a preload, and the elastic force of the elastic element to recover its deformation causes the conductive post 152 to tend to extend out of the limiting groove 1511, thereby abutting against the first electrical connector 14, ensuring a relatively reliable connection between the first electrical connector 14 and the second electrical connector 15.

[0053] In some embodiments, such as Figure 4 and Figure 7As shown, the lifting device 1 also includes a body 161 and rollers 162. The body 161 is mounted on the inner rod 13 to move up and down with the inner rod 13. Multiple rollers 162 are provided and are rotatably connected to at least two opposite sides of the body 161. The rollers 162 roll against the inner side of the outer rod 12. The second electrical connector 15 is fixed to the body 161 to move up and down with the body 161. It can be understood that the inner side of the outer rod 12 forms the hollow cavity 121. Specifically, each of the two opposite sides of the body 161 may have only one roller 162 or multiple rollers 162. Compared to sliding contact, rolling friction has less friction. The rolling contact between the body 161 and the outer rod 12 via the rollers 162 facilitates smoother movement of the inner rod 13, which is fixedly connected to the body 161, and also facilitates smoother movement of the second electrical connector 15, while maintaining a relatively stable contact with the first electrical connector 14.

[0054] In some embodiments, such as Figure 4 and Figure 5 As shown, the lifting device 1 also includes a fixing block 181, which is fixed to the bottom end of the main body 161. Specifically, the fixing block 181 can be directly fixed to the bottom end of the main body 161, or it can be indirectly fixed to the bottom end of the main body 161 through other components (such as the insulating sleeve 183). Multiple second electrical connectors 15 are provided, and each second electrical connector 15 is installed on the fixing block 181. The fixing block 181 forms the mounting base for the multiple second electrical connectors 15. After the multiple second electrical connectors 15 are installed on the fixing block 181, they form a modular assembly with the fixing block 181, eliminating the need to disassemble and assemble the second electrical connectors 15 one by one, thus facilitating the disassembly and assembly of the multiple second electrical connectors 15.

[0055] In some embodiments, such as Figures 4-6 As shown, the lifting device 1 also includes a circuit board 182. Two circuit boards 182 are arranged opposite each other, and each circuit board 182 has at least two second electrical connectors 15 spaced apart. It can be understood that two first electrical connectors 14 are also arranged opposite each other, and each first electrical connector 14 is electrically connected to two spaced second electrical connectors 15 on one circuit board 182. The increased contact points and larger contact area after multiple first electrical connectors 14 and multiple second electrical connectors 15 abut against each other facilitate the formation of a more reliable circuit connection within the lifting device 1. Multiple second electrical connectors 15 on the same side of the inner rod 13 share a single circuit board 182, allowing them to form a modular assembly for easy assembly onto the fixing block 181.

[0056] In some embodiments, such as Figure 4As shown, the lifting device 1 also includes an insulating sleeve 183. The insulating sleeve 183 is used for insulation. The part of the second electrical connector 15 that connects to the power supply assembly 11 is disposed inside the insulating sleeve 183. The second electrical connector 15 passes through the insulating sleeve 183 and abuts against the first electrical connector 14. That is to say, the position where the second electrical connector 15 connects to the power supply assembly 11 is insulated by the insulating sleeve 183, which reduces the possibility of electrical energy from the power supply assembly 11 being transmitted to the inner rod 13 through the second electrical connector 15, reduces the possibility of accidental contact by electrical energy when the user operates the inner rod 13, and facilitates the user to operate the inner rod 13 to achieve lifting and lowering.

[0057] In some embodiments, such as Figure 3 and Figure 7 As shown, the lifting device 1 also includes a sliding body 171 and pulleys 172. The sliding body 171 is mounted on the inner rod 13 and rises and falls with the inner rod 13. Multiple pulleys 172 are provided, each rotatably connected to at least two opposite sides of the sliding body 171. The pulleys 172 roll against the inner side of the outer rod 12. The sliding body 171 is located above the body 161 and spaced apart from it. For ease of understanding, the assembly formed by the body 161 and multiple pulleys 162 is defined as the first sliding group 16, and the assembly formed by the sliding body 171 and multiple pulleys 172 is defined as the second sliding group 17. It can be understood that the first sliding group 16 and the second sliding group 17 are spaced apart in the lifting direction of the inner rod 13, and the second sliding group 17 is located above the first sliding group 16. The second electrical connector 15 is connected to the first sliding group 16. The first sliding group 16 and the second sliding group 17 together connect the inner rod 13 and the outer rod 12, which extends the connecting lever arm between the inner rod 13 and the outer rod 12, improves the bending resistance of the inner rod 13, and reduces the possibility of the inner rod 13 tipping over or bending.

[0058] like Figure 1 As shown, this utility model embodiment also provides a lighting device, which includes the above-mentioned lifting device 1, and the lighting device also includes a lamp head 2 and a base 3, wherein the lamp head 2 is an electrical component.

[0059] The lamp holder 2 is connected to the top of the inner rod 13. Specifically, in the top view of the lighting device (e.g., Figure 2 As shown, the lamp head 2 can be set only on one side of the inner rod 13 to reduce 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 lamp head 2 can also be set on multiple sides of the inner rod 13, for example, the center of the lamp head 2 is connected to the center of the top of the inner rod 13, so that the light from the lamp head 2 can form an lighting area on multiple sides of the inner rod 13.

[0060] The base 3 is connected to the bottom end of the outer rod 12 and is used to support the outer rod 12. When the inner rod 13 is nested and connected to the outer rod 12, the lamp head 2 of the lighting device in this embodiment of the present invention is at its highest height. That is to say, 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 rod 13 to lower the height of the lamp head 2, thereby adjusting the lighting height.

[0061] Specifically, since the lighting equipment includes the aforementioned lifting device 1, it has the same technical effect as the aforementioned lifting device 1, that is, the lighting equipment reduces the impact of the lifting movement of the inner rod 13 on the circuit connection, the circuit that supplies power to the lamp head 2 inside the lighting equipment is more reliable, it can maintain the stability of the lighting of the lamp head 2, and extend the service life of the lighting equipment.

[0062] 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: Power supply components; The outer rod has a hollow cavity inside, and the power supply assembly is located inside the hollow cavity. An inner rod, used for connecting electrical components, is at least partially located within the hollow cavity, and the inner rod is positioned above the power supply assembly; The first electrical connector is used for electrical connection with the power supply assembly and is fixed to the outer rod; The second electrical connector is used for electrical connection with the electrical component and is fixed to the inner rod; The second electrical connector moves up and down with the inner rod and remains in contact with the first electrical connector within the movable distance of the inner rod, so as to electrically connect the electrical device and the power supply assembly.

2. The lifting device according to claim 1, characterized in that, The first electrical connector extends along the lifting direction of the second electrical connector, and the extension length of the first electrical connector is greater than the lifting distance of the inner rod. And / or, the second electrical connector extends horizontally and is mounted on the bottom end of the inner rod.

3. The lifting device according to claim 1, characterized in that, The inner side of the outer rod has a slot, and the first electrical connector is inserted into the slot.

4. The lifting device according to claim 3, characterized in that, The first electrical connector includes: Conductive strips are used to conduct electricity; An insulating outer shell is inserted into the slot and partially covers the conductive strip; The insulating shell has an opening on one side facing the central axis of the hollow cavity, and the second electrical connector abuts against the first electrical connector through the opening.

5. The lifting device according to claim 1, characterized in that, The second electrical connector has two parts arranged opposite each other in the horizontal direction; And / or, at least two second electrical connectors are provided at intervals along the lifting direction of the inner rod.

6. The lifting device according to claim 1, characterized in that, The first electrical connector and the second electrical connector are in elastic electrical contact.

7. The lifting device according to claim 6, characterized in that, The second electrical connector includes: The casing has a limiting groove. The conductive post slides relative to the housing and is partially located within the limiting groove; An elastic element is disposed within the limiting groove and abuts against the housing and the conductive post; The elastic element undergoes compression deformation in the horizontal direction.

8. The lifting device according to claim 1, characterized in that, The lifting device also includes: The main body is installed on the inner rod to move up and down with the inner rod; Multiple rollers are provided and are rotatably connected to at least two opposite sides of the body, and the rollers roll against the inner side of the outer rod. The second electrical connector is fixed to the body so as to move up and down with the body.

9. The lifting device according to claim 8, characterized in that, The lifting device also includes: A fixing block is fixed to the bottom end of the main body. Multiple second electrical connectors are provided, and each second electrical connector is installed on the fixing block. And / or, two circuit boards are arranged opposite each other, and each circuit board is provided with at least two second electrical connectors at intervals; And / or, an insulating sleeve for insulation, wherein the portion of the second electrical connector that connects to the power supply assembly is disposed within the insulating sleeve and passes through the insulating sleeve to abut against the first electrical connector.

10. The lifting device according to claim 8, characterized in that, The lifting device also includes: A sliding body is installed on the inner rod to move up and down with the inner rod; Multiple pulleys are provided and are rotatably connected to at least two opposite sides of the sliding body, and the pulleys roll against the inner side of the outer rod; The sliding body is located above the main body and is spaced apart from the main body.

11. A lighting device, characterized in that, The lighting device further includes the lifting device according to any one of claims 1 to 10, and further includes: The lamp holder is connected to the top of the inner rod; The base is connected to the bottom end of the outer rod; The lamp holder is the electrical component.

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