Lifting device and lighting device

Abstract

The utility model is suitable for lighting equipment technical field provides a kind of lifting device and lighting equipment. The above-mentioned lifting device includes support, slider and lifting assembly. Slider is elevated relative to support, and is used to connect to be supported spare, and lifting assembly includes the tensioning member connected with support, the connecting piece around the tensioning member and the counterweight installed in connecting piece, slider is fixedly connected with connecting piece, slider elevates and drives connecting piece to rotate around tensioning member and counterweight elevates. In horizontal direction, the connecting place of slider and connecting piece is located at one side of tensioning member;The connecting place of counterweight and connecting piece is located at the other side of tensioning member and moves in the direction opposite to the elevating direction of slider, to make slider hover. After the completion of the elevating action of slider, it can hover, and it is not necessary to set additional limiting member to carry out the limiting operation of slider, simplify the difficulty of user operation lifting device adjustment to be supported spare height.

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. However, in these technologies, the lifting device cannot maintain its position after raising or lowering; it cannot hover and requires user-operated limiters to restrict its movement. This makes the operation of the lifting device cumbersome and inconvenient for users. Utility Model Content

[0003] In view of this, the present invention provides a lifting device and lighting equipment to solve the technical problem that the lifting operation of the lifting device is cumbersome and inconvenient for users.

[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 support member; a sliding member that moves up and down relative to the support member and is used to connect to a member to be supported; a lifting assembly including a tensioning member connected to the support member, a connecting member wound around the tensioning member, and a counterweight installed on the connecting member, wherein the sliding member is fixedly connected to the connecting member, and the movement of the sliding member causes the connecting member to rotate around the tensioning member and the counterweight to move up and down; wherein, in the horizontal direction, the connection between the sliding member and the connecting member is located on one side of the tensioning member; the connection between the counterweight and the connecting member is located on the other side of the tensioning member and moves in the opposite direction to the movement of the sliding member, so that the sliding member is suspended.

[0006] In some embodiments, the tensioning member consists of two drive wheels, which are spaced apart along the lifting direction of the sliding member and are rotatably connected to the support member so as to rotate with the connecting member.

[0007] In some embodiments, the transmission wheel is a synchronous wheel, and the connecting member is a synchronous belt that meshes with the synchronous wheel; in the horizontal direction, the sliding member meshes with the portion of the synchronous belt located on one side of the synchronous wheel, and the counterweight meshes with the portion of the synchronous belt located on the other side of the synchronous wheel.

[0008] In some embodiments, the sliding member includes: a movable rod that moves up and down relative to the support member, the bottom end of the movable rod being located inside the support member, and the top end of the movable rod being fitted with the member to be supported; and a slider located above the counterweight member, the slider being fixedly connected to the movable rod and the connecting member, and sliding relative to the support member to move up and down with the movable rod.

[0009] In some embodiments, at least two counterweights are provided along the lifting direction, each of which is fixedly connected to the connecting member, and the counterweights are interconnected and move together with the connecting member.

[0010] In some embodiments, the support member includes: an outer support rod having a hollow cavity; an inner support rod, at least partially disposed within the hollow cavity and fixedly connected to the outer support rod; wherein the tensioning member is rotatably connected to at least one of the outer support rod and the inner support rod, and the movable rod is located between the outer support rod and the inner support rod.

[0011] In some embodiments, the inner support rod has a first cavity and a second cavity that are separated from each other. The tensioning member, the connecting member, and the slider are all installed in the first cavity, and the second cavity is used to pass through the cable connecting the member to be supported.

[0012] In some embodiments, the inner support rod is further provided with a rib located in the first cavity, and the connector is arranged around the rib; wherein, the slider is inserted into one side of the rib, and the counterweight is inserted into the other side of the rib.

[0013] In some embodiments, the support further includes: a fixing block, fixed to the top end of the inner support rod and detachably connected to the inner support rod, wherein the tensioning member is installed in the fixing block around the upper end of the connector; and / or, a base, fixed to the bottom end of the inner support rod and detachably connected to the inner support rod, wherein the tensioning member is installed in the base around the lower end of the connector.

[0014] In some embodiments, a fixing block is provided at the top of the inner support rod. The fixing block has a first sub-cavity, a second sub-cavity, and a third sub-cavity. The first sub-cavity is separated from the second sub-cavity and communicates with the first cavity. The first sub-cavity is installed with the tensioning member that wraps around the upper end of the connector. The second sub-cavity communicates with the second cavity to allow the cable to pass through. The third sub-cavity communicates with the first sub-cavity and the second sub-cavity and is located below the first and second sub-cavities. The inner support rod is inserted into the third sub-cavity.

[0015] In some embodiments, the lifting assembly further includes: a body fixedly connected to the moving rod and spaced apart from the inner support rod; and a pulley rotatably connected to the body and rollingly abutting against the outer support rod; wherein at least two bodies are spaced apart, each body is provided with the pulley, and the upper body of each body is fixedly connected to the slider.

[0016] 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 sliding member; and a support connected to the bottom end of the supporting member; wherein the lamp head is the member to be supported.

[0017] This utility model provides a lifting device including a support member, a sliding member, and a lifting assembly. The sliding member moves up and down relative to the support member and is used to connect the supported member. The lifting assembly includes a tensioning member connected to the support member, a connecting member wrapped around the tensioning member, and a counterweight installed on the connecting member. The sliding member can drive the connecting member to rotate around the tensioning member and can also drive the counterweight to move up and down. In the horizontal direction, the connection between the sliding member and the connecting member is located on one side of the tensioning member, and the connection between the counterweight and the connecting member is located on the other side of the tensioning member. During the lifting and lowering of the sliding member, the counterweight moves in the opposite direction to the lifting and lowering direction of the sliding member. With this configuration, the downward gravity of the counterweight is converted into an upward pulling force on the sliding member through the connecting member, thereby resisting the downward force on the sliding member and allowing the sliding member to suspend. There is no need to set additional limiting members to limit the sliding member, and the user does not need to operate other components to limit the position of the sliding member after adjusting the height of the supported member by pulling up or pushing down the sliding member. The structure is simple, simplifying the operation of the lifting device to adjust the height of the supported member and making it convenient for users to operate.

[0018] This utility model provides a lighting device including a lamp head, a base, and the aforementioned lifting device. Because the lifting device can suspend the supported component with a simple structure, the lighting device allows the lamp head to be suspended at any position within the lifting adjustment range. This eliminates the need for additional limiting components to restrict the lamp head's position after the lifting action is complete, making it convenient for users to adjust the lamp head's height and improving ease of use. Attached Figure Description

[0019] Figure 1 This is a perspective view of the lighting device provided in an embodiment of the present utility model;

[0020] Figure 2 This is a perspective view of the lifting device provided in an embodiment of the present utility model;

[0021] Figure 3 The lifting device provided in the embodiments of this utility model is Figure 2A cross-sectional view along the AA direction;

[0022] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0023] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0024] Figure 6 The lifting device provided in the embodiments of this utility model is Figure 2 A cross-sectional view along the DD direction;

[0025] Figure 7 The fixing block and inner support rod provided in the embodiments of this utility model are Figure 6 A breakdown diagram from a specific perspective;

[0026] Figure 8 This is a three-dimensional exploded view of the fixing block and inner support rod provided in an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Lifting device; 11. Support component; 111. Outer support rod; 1111. Hollow cavity; 112. Inner support rod; 1121. First cavity; 1122. Second cavity; 1123. Protruding rib; 113. Fixing block; 1131. First sub-cavity; 1132. Second sub-cavity; 1133. Third sub-cavity; 114. Base; 12. Sliding component; 121. Moving rod; 122. Sliding block; 13. Lifting assembly; 131. Tensioning component; 1311. First transmission wheel; 1312. Second transmission wheel; 132. Connecting component; 133. Counterweight; 134. Pulley block; 1341. Body; 1342. Pulley; 134a. First pulley block; 134b. Second pulley block; 2. Lamp head; 3. Support. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] like Figure 1 and Figure 2 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.

[0034] like Figure 3 As shown, the lifting device 1 includes a support member 11, a sliding member 12, and a lifting assembly 13. The support member 11 forms the mounting base for the sliding member 12 and the lifting assembly 13. The sliding member 12 moves up and down relative to the support member 11 and is used to connect the component to be supported. Specifically, the type of component to be supported is adapted to the application scenario of the lifting device 1; that is, the component to be supported can be a lamp head 2, a fan head, or a computer monitor.

[0035] like Figure 3As shown, the lifting assembly 13 includes a tensioning member 131, a connecting member 132, and a counterweight 133. The tensioning member 131 is connected to the support member 11. The tensioning member 131 can be fixedly connected to the support member 11 or movably connected to the support member 11. For example, the tensioning member 131 can be rotatably connected to the support member 11. The connecting member 132 is wound around the tensioning member 131, and the counterweight 133 is installed on the connecting member 132. The sliding member 12 is fixedly connected to the connecting member 132. The lifting and lowering of the sliding member 12 causes the connecting member 132 to rotate around the tensioning member 131 and the counterweight 133 to lift and lower. That is, the lifting and lowering of the sliding member 12 causes the connecting member 132 to move. Specifically, the lifting and lowering of the sliding member 12 causes the connecting member 132 to rotate around the tensioning member 131, and the rotation of the connecting member 132 causes the counterweight 133 installed on the connecting member 132 to lift and lower. During the lifting and lowering process of the sliding member 12, the connecting member 132 rotates, the counterweight 133 rises and falls, and the tensioning member 131 can rotate relative to the support member 11 or remain stationary. However, the tensioning member 131 remains connected to the support member 11 and does not rise and fall with the sliding member 12. Therefore, it can be understood that the position of the tensioning member 131 in the lifting direction of the lifting device 1 remains unchanged.

[0036] It should be noted that the lifting direction of the lifting device 1 is the sliding direction of the sliding member 12 relative to the support member 11, and also the height direction of the member to be supported relative to the ground. It can be understood that the direction in which the sliding member 12 and the support member 11 have the largest dimensions in the three-dimensional coordinate system is the height direction, which is also the lifting direction of the sliding member 12.

[0037] like Figures 3-5 As shown, in the horizontal direction, at the connection between the slider 12 and the connector 132 (refer to...) Figure 4 Located on one side of the tensioner 131, at the connection between the counterweight 133 and the connector 132 (refer to...). Figure 5 Located on the other side of tensioner 131. It should be noted that the horizontal direction is roughly horizontal relative to the ground, but it does not need to be a strictly 0-degree angle with the ground. Considering practical errors, the horizontal direction can be understood as a direction with an angle within 5 degrees to the ground. It can be understood that one side and the other side of tensioner 131 are opposite sides of tensioner 131 in the horizontal direction. Figure 3 In the schematic diagram shown, one side of the tensioner 131 represents the right side of the tensioner 131, and the other side of the tensioner 131 represents the left side of the tensioner 131.

[0038] It should be noted that the connection between the slider 12 and the connector 132 is located on one side of the tensioner 131, but this does not mean that the entire outline of the slider 12 is located on one side of the tensioner 131. The projection of the outline of the slider 12 in the horizontal direction may partially overlap with the projection of the tensioner 131 in the horizontal direction. Correspondingly, the connection between the counterweight 133 and the connector 132 is located on the other side of the tensioner 131, but this also does not mean that the entire outline of the counterweight 133 is located on the other side of the tensioner 131.

[0039] Specifically, the sliding member 12 can be snapped, plugged into, or locked with the connecting member 132 using fasteners. This embodiment of the invention does not limit the specific connection method between the sliding member 12 and the connecting member 132. Similarly, the counterweight 133 can also be snapped, plugged into, or locked with the connecting member 132 using fasteners. This embodiment of the invention also does not limit the specific connection method between the sliding member 12 and the connecting member 132. It is sufficient that the connection points between the sliding member 12 and the connecting member 132, and between the counterweight 133 and the connecting member 132, are located on opposite sides of the tensioning member 131.

[0040] For ease of explanation, this utility model embodiment provides an exemplary implementation. For example, as Figure 4 As shown, the sliding member 12 can engage with the connecting member 132. Therefore, "the connection between the sliding member 12 and the connecting member 132 is located on one side of the tensioning member 131" means that the engagement position between the sliding member 12 and the connecting member 132 is on one side of the tensioning member 131. Figure 4 (The right side). For example Figure 5 As shown, the counterweight 133 can engage with the connecting member 132. Therefore, "the connection between the counterweight 133 and the connecting member 132 is located on the other side of the tensioning member 131" means that the engagement position between the counterweight 133 and the connecting member 132 is on the other side of the tensioning member 131. Figure 5 (Left side).

[0041] like Figure 3 and Figure 4As shown, during the lifting and lowering process of the slider 12, the counterweight 133 moves in the opposite direction to the lifting and lowering direction of the slider 12, so that the slider 12 is suspended. Specifically, when the slider 12 rises, the position where it connects to the connector 132 (where the slider 122 is located) rises, and the counterweight 133 falls. The weight of the counterweight 133 is converted into an upward pulling force on the slider 12 through the connector 132, thus resisting the weight of the slider 12 and allowing the slider 12 to remain stationary after completing the rising action, achieving "hovering". Similarly, when the slider 12 falls, the position where it connects to the connector 132 (where the slider 122 is located) falls, and the counterweight 133 rises. Since the connection points of the counterweight 133 and the connector 132 and the connection points of the slider 12 and the connector 132 are located on opposite sides of the tensioner 131, the weight of the counterweight 133 is still converted into an upward pulling force on the slider 12 through the connector 132 surrounding the tensioner 131, allowing the slider 12 to remain stationary after completing the falling action, achieving "hovering". Thus, since the connection between the counterweight 133 and the connector 132 and the connection between the slider 12 and the connector 132 are located on opposite sides of the tensioner 131, the counterweight 133 always applies an upward pulling force to the slider 12 through the connector 132. By setting the weight of the counterweight 133 to balance the downward force on the slider 12, for example, the weight of the counterweight 133 is at least equal to the sum of the weights of the slider 12 and the component to be supported, the slider 12 can remain stationary at any position within the lifting height range.

[0042] The lifting device 1 provided in this embodiment of the present invention includes a support member 11, a sliding member 12, and a lifting assembly 13. The sliding member 12 moves up and down relative to the support member 11 and is used to connect the member to be supported. The lifting assembly 13 includes a tensioning member 131 connected to the support member 11, a connecting member 132 wrapped around the tensioning member 131, and a counterweight 133 installed on the connecting member 132. The sliding member 12 is fixedly connected to the connecting member 132. The movement of the sliding member 12 causes the connecting member 132 to rotate around the tensioning member 131 and the counterweight 133 to move up and down. In the horizontal direction, the connection between the slider 12 and the connector 132 is located on one side of the tensioner 131, and the connection between the counterweight 133 and the connector 132 is located on the other side of the tensioner 131. Thus, the weight of the counterweight 133 is converted into an upward pulling force on the slider 12 through the connector 132. During the lifting and lowering of the slider 12, the counterweight 133 moves in the opposite direction to the lifting and lowering of the slider 12. After the lifting and lowering action of the slider 12 is completed, the weight of the counterweight 133 pulls the slider 12 upward, thereby resisting the downward force on the slider 12 and causing it to hover. The slider 12 can hover without the need for additional limiting components to limit its position. This eliminates the need for users to operate other components to limit the slider 12 after adjusting its height by pulling or pushing it up or down, simplifying the structure of the entire lifting device and reducing the difficulty for users to adjust the height of the supported component, making operation more convenient.

[0043] In some embodiments, such as Figure 3 As shown, the tensioning element 131 consists of two transmission wheels, which are spaced apart along the lifting direction of the sliding element 12. It can be understood that one of the transmission wheels is located above the other. For ease of understanding, the two transmission wheels are defined as the first transmission wheel 1311 and the second transmission wheel 1312, with the first transmission wheel 1311 located above the second transmission wheel 1312. Both transmission wheels are rotatably connected to the support element 11, rotating with the connecting element 132. Specifically, the connecting element 132 can be a belt, chain, or rack wound around the two transmission wheels. During the rotation of the connecting element 132, both the first transmission wheel 1311 and the second transmission wheel 1312 rotate with the connecting element 132, improving the smoothness of the rotation of the connecting element 132, thereby improving the smoothness of the lifting of the sliding element 12 and the counterweight 133. In addition, during the rotation of the connector 132, the first transmission wheel 1311 and the second transmission wheel 1312 also rotate with the connector 132. Each transmission wheel provides tension force relatively evenly in the circumferential direction. The two transmission wheels continuously tension the connector 132 in the lifting direction, reducing the possibility of the connector 132 loosening and improving the lifting stability of the sliding member 12.

[0044] In some embodiments, such as Figure 3As shown, the transmission wheel is a synchronous pulley, and the connecting component 132 is a synchronous belt that meshes with the synchronous pulley. The synchronous belt meshes with the synchronous pulley, and the connection reliability is higher than that of a belt.

[0045] In the horizontal direction, the counterweight 133 engages with the portion of the synchronous belt on one side of the synchronous pulley, and the sliding member 12 engages with the portion of the synchronous belt on the other side of the synchronous pulley. Both the sliding member 12 and the counterweight 133 are engaged with the synchronous belt, resulting in high connection reliability. This reduces the possibility of the sliding member 12 and the counterweight 133 slipping relative to the synchronous belt, and facilitates the timely suspension of the sliding member 12 and the counterweight 133 after the lifting action is completed.

[0046] In some embodiments, such as Figure 3 and Figure 4 As shown, the sliding member 12 includes a movable rod 121 and a slider 122. The movable rod 121 moves up and down relative to the support member 11. The bottom end of the movable rod 121 is located inside the support member 11, and the top end of the movable rod 121 is fitted with the component to be supported (see reference). Figure 1 The lamp holder 2). That is, the lower part of the moving rod 121 is inserted into the support member 11, and at least the top end of the moving rod 121 is outside the height range of the support member 11, but is always above the support member 11.

[0047] The slider 122 is located above the counterweight 133. The slider 122 is fixedly connected to the moving rod 121 and the connecting member 132, and slides relative to the support member 11 to rise and fall with the moving rod 121. It can be understood that the connection position between the slider 122 and the connecting member 132 forms the aforementioned "connection point between the slider 12 and the connecting member 132". Therefore, the downward gravity of the counterweight 133 is converted into an upward pulling force on the slider 122 through the connecting member 132.

[0048] Specifically, when the connecting member 132 is the aforementioned synchronous belt, the slider 122 can be engaged with the connecting member 132. The slider 122 can be slidably connected to the support member 11 via a guide rail, or it can be rolledly connected to the support member 11 via a pulley 1342, as long as the slider 122 can slide relative to the support member 11 to achieve lifting and lowering. The slider 122 rises and falls with the rotation of the connecting member 132, thereby driving the moving rod 121 fixedly connected to the slider 122 to rise and fall, realizing the height adjustment of the support member. The counterweight 133 is located below the slider 122, and the lifting range of the counterweight 133 is below the lifting range of the slider 122. The lifting action of the counterweight 133 is independent of the lifting action of the slider 122, and it makes full use of the height space of the support member 11, resulting in a relatively compact structure.

[0049] In some embodiments, such as Figure 3 and Figure 5As shown, at least two counterweights 133 are provided along the lifting direction. Specifically, the number of counterweights 133 can be two, three, four, etc. In this way, a larger number of counterweights 133 can be configured to increase the lifting distance of the moving rod 121, while shortening the length of each counterweight 133, which facilitates the transportation and processing of the counterweights 133.

[0050] Each counterweight 133 is fixedly connected to the connector 132, and the counterweights 133 are interconnected (see reference). Figure 5 The counterweights 133 are fixedly connected to the connector 132 in the horizontal direction, and the multiple counterweights 133 are also interconnected in the lifting direction. Each counterweight 133 has multiple connection positions, and the connection between the counterweights 133 and the connector 132 is relatively reliable, which is conducive to the counterweights 133 reliably providing upward pulling force to the slider 122 through the connector 132.

[0051] In some embodiments, such as Figure 3 As shown, the support member 11 includes an outer support rod 111 and an inner support rod 112. The outer support rod 111 forms a hollow cavity 1111, and at least a portion of the inner support rod 112 is disposed within the hollow cavity 1111 and fixedly connected to the outer support rod 111. That is, the support member 11 includes two nested support rods, with the inner support rod 112 inserted into the outer support rod 111 and stationary relative to the outer support rod 111.

[0052] The tensioning element 131 is rotatably connected to at least one of the outer support rod 111 and the inner support rod 112. Specifically, the tensioning element 131 can be rotatably connected to the inner support rod 112, the outer support rod 111, or both. For example, the tensioning element 131 can pass through the inner support rod 112 and be rotatably connected to the outer support rod 111. However, regardless of which of the inner support rod 112 or the outer support rod 111 the tensioning element 131 is rotatably connected to, as long as the tensioning element 131 can be installed and its height remains constant in the lifting direction, it is acceptable.

[0053] The movable rod 121 is located between the outer support rod 111 and the inner support rod 112. Specifically, at least a portion of the movable rod 121 is installed between the outer support rod 111 and the inner support rod 112. The inner support rod 112, located inside the movable rod 121, and the outer support rod 111, located outside the movable rod 121, share the supporting force and jointly resist the bending deformation of the movable rod 121. This allows both the inner and outer sides of the movable rod 121 to be supported and restricted, increasing the restricted area and area of ​​the movable rod 121. The two support rods jointly resist torsion, reducing the possibility of bending deformation of the movable rod 121 and improving the bending resistance of the lifting device 1. When the lifting device 1 is used in lighting equipment, a heavier lamp head 2 can be configured for the lighting equipment (see reference). Figure 1 Alternatively, a longer lever 121 can be configured to allow the lamp head 2 to have a larger lifting distance, thereby increasing the adjustable lighting range of the lighting equipment.

[0054] In some embodiments, such as Figure 6 and Figure 7 As shown, the inner support rod 112 forms a first cavity 1121 and a second cavity 1122 that are separated from each other. The tensioning member 131, the connecting member 132, and the slider 122 are all installed in the first cavity 1121. The second cavity 1122 is used to pass through the cable (not shown) connecting the component to be supported. The tensioning member 131, the connecting member 132, and the slider 122 realize mechanical transmission in the first cavity 1121, and the cable realizes electrical connection to the component to be supported in the second cavity 1122. The mechanical transmission and electrical connection are set in two separate cavities, and the mechanical transmission and electrical connection are independent of each other and do not affect each other, which improves the stability of the mechanical transmission and the reliability of the electrical connection.

[0055] It should be noted that, Figure 6 The DD section direction shown is in line with Figure 2 The AA cross-sections shown are perpendicular to each other, and for ease of illustration, Figure 6 Only a partial sectional view is shown. Figure 7 The cross-sectional direction shown is the same as Figure 6 The cross-sectional directions shown are consistent, all being... Figure 2 The DD direction in the middle can be Figure 7 Simply put Figure 6 An exploded view of the disassembled fixed block 113 and inner support rod 112 from a perspective.

[0056] In some embodiments, such as Figure 4 and Figure 8 As shown, the inner support rod 112 is also provided with a protruding rib 1123 located in the first cavity 1121, and the connector 132 is arranged around the protruding rib 1123, that is, a part of the connector 132 is located on one side of the protruding rib 1123. Figure 4The other part of the connector 132 is located on the other side of the rib 1123 (to the right of the central rib 1123). Figure 4 (Left side of the central convex rib 1123).

[0057] like Figure 4 and Figure 5 As shown, slider 122 is inserted into one side (right side) of rib 1123, and counterweight 133 is inserted into the other side (left side) of rib 1123. Slider 122 and counterweight 133 are respectively inserted into both sides of rib 1123. Rib 1123 separates the installation space of slider 122 and counterweight 133. By observing the position of rib 1123, the installation position of slider 122 and counterweight 133 can be quickly determined, which facilitates the assembly operation of slider 122 and counterweight 133, and also makes it easier for slider 122 and counterweight 133 to be held relatively stably on opposite sides of tensioner 131.

[0058] In some embodiments, such as Figure 3 and Figure 6 As shown, the support member 11 also includes a fixing block 113 and a base 114. The fixing block 113 is fixed to the top end of the inner support rod 112 and is detachably connected to the inner support rod 112. The tensioning member 131, with the portion surrounding the upper end of the connecting member 132, is installed inside the fixing block 113. The base 114 is fixed to the bottom end of the inner support rod 112 and is detachably connected to the inner support rod 112. The tensioning member 131, with the portion surrounding the lower end of the connecting member 132, is installed inside the base 114. Specifically, when the tensioning member 131 includes a first transmission wheel 1311 and a second transmission wheel 1312, the first transmission wheel 1311 can be installed inside the fixing block 113, and the second transmission wheel 1312 can be installed inside the base 114. In this way, the first transmission wheel 1311 and / or the second transmission wheel 1312 can be disassembled and assembled without disassembling the inner support rod 112, facilitating the disassembly and assembly of the first transmission wheel 1311 and the second transmission wheel 1312. There is no need to reserve installation positions for the first transmission wheel 1311 and the second transmission wheel 1312 on the inner support rod 112, which reduces the processing difficulty of the inner support rod 112.

[0059] It should be noted that in some possible implementations, the support member 11 may consist only of the fixing block 113, with the first drive wheel 1311 mounted only at the top of the inner support rod 112; the support member 11 may also consist only of the base 114, with the second drive wheel 1312 mounted only at the bottom of the inner support rod 112. Regardless of which configuration is used, at least one of the two drive wheels can be disassembled and reassembled independently of the inner support rod 112, thereby simplifying the disassembly and reassembly of at least one drive wheel.

[0060] In some embodiments, such as Figure 6 and Figure 7As shown, a fixing block 113 is provided at the top of the inner support rod 112. The fixing block 113 has a first sub-cavity 1131, a second sub-cavity 1132, and a third sub-cavity 1133. The first sub-cavity 1131 is separated from the second sub-cavity 1132. The first sub-cavity 1131 communicates with the first cavity 1121 and is equipped with a tensioning member 131 that wraps around the upper part of the connecting member 132. Specifically, when the tensioning member 131 includes a first transmission wheel 1311 and a second transmission wheel 1312, the first sub-cavity 1131 is equipped with the first transmission wheel 1311. The second sub-cavity 1132 communicates with the second cavity 1122 for cable passage. The third sub-cavity 1133 communicates with the first sub-cavity 1131 and the second cavity 1132 and is located below the first sub-cavity 1131 and the second cavity 1132. The inner support rod 112 is inserted into the third sub-cavity 1133. Thus, the internal cavity of the fixing block 113 is divided into three sub-cavities, which are respectively used to run cables, install tensioning member 131 around the upper part of connector 132 (first transmission wheel 1311), and insert inner support rod 112. The electrical connection space (second sub-cavity 1132), transmission space (first sub-cavity 1131) and installation space (third sub-cavity 1133) in the fixing block 113 do not affect each other, which facilitates assembly operations and improves the electrical connection reliability and transmission stability of lifting device 1.

[0061] In some embodiments, such as Figure 3 and Figure 4 As shown, the lifting assembly 13 also includes a body 1341 and pulleys 1342. The body 1341 is fixedly connected to the moving rod 121 and spaced apart from the inner support rod 112, that is, the moving rod 121 drives the body 1341 to rise and fall. Specifically, there may be only one pulley 1342 or multiple pulleys 1342. The pulleys 1342 may be provided on only one side of the body 1341 or on multiple sides of the body 1341.

[0062] Pulley 1342 is rotatably connected to the body 1341 and rolls against the outer support rod 111. Compared to sliding friction, rolling friction has less frictional force. The rolling contact between pulley 1342 and the outer support rod 111 facilitates smoother lifting and lowering of the movable rod 121, which is fixedly connected to the slider 122. On the other hand, compared to the rolling contact between pulley 1342 and the inner support rod 112, the rolling contact between pulley 1342 and the outer support rod 111 increases the horizontal support cross-section of pulley 1342, reduces local stress concentration in the body 1341, further increases the bending resistance of the movable rod 121, and reduces the possibility of bending deformation of the movable rod 121.

[0063] like Figure 4 and Figure 5As shown, at least two bodies 1341 are spaced apart, and each body 1341 is equipped with a pulley 1342. Specifically, a body 1341 and the pulley 1342 connected to it are assembled into a pulley group 134. Each pulley group 134 may include multiple pulleys 1342, and the pulleys 1342 in each pulley group 134 may be distributed on multiple sides of the body 1341. It can be understood that the lifting assembly 13 includes at least two pulley groups 134. The upper body 1341 of each body 1341 is fixedly connected to the slider 122, that is, the upper pulley group 134 of each pulley group 134 is equipped with the slider 122. For ease of explanation, let's take the lifting assembly 13 as an example, where the upper pulley group 134 is the first pulley group 134a, and the lower pulley group 134b is the second pulley group 134b. It is understood that the first pulley block 134a is equipped with a slider 122, and the main body 1341 in the first pulley block 134a drives the slider 122 to rise and fall with the moving rod 121. Multiple pulley blocks 134 together support the moving rod 121, increasing the lever arm that the moving rod 121 can support, thereby reducing the possibility of the moving rod 121 tipping over and bending deformation, and further increasing the bending resistance of the moving rod 121.

[0064] 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 support 3, wherein the lamp head 2 is a support component.

[0065] The lamp head 2 is connected to the top of the slider 12. Specifically, in the top view of the lighting device, the lamp head 2 can be set only on one side of the slider 12 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 slider 12. For example, the center of the lamp head 2 is connected to the center of the top of the slider 12, so that the light from the lamp head 2 can form an lighting area on multiple sides of the slider 12.

[0066] The support 3 is connected to the bottom end of the support member 11, forming the base 114 of the support member 11. Specifically, the support 3 is connected to the outer support rod 111 and the inner support rod 112 (see reference). Figure 3 The bottom end of the rod is used to fix and support the outer support rod 111 and the inner support rod 112.

[0067] Since the lighting device includes the aforementioned lifting device 1, it has the same technical effect as the lifting device 1, namely, the height of the lamp head 2 is easily adjustable and the operation is simple. The lamp head 2 can be suspended at any position within the lifting adjustment range to form lighting devices of different types or different illumination intensities. When the sliding member 12 is nested between the inner support rod 112 and the outer support rod 111, 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 on the sliding member 12 to lower the height of the lamp head 2, thereby realizing the adjustment of the lighting height.

[0068] 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: Support components; A sliding member that moves up and down relative to the support member and is used to connect the member to be supported; The lifting assembly includes a tensioning member connected to the support member, a connecting member wrapped around the tensioning member, and a counterweight installed on the connecting member. The sliding member is fixedly connected to the connecting member. The lifting of the sliding member drives the connecting member to rotate around the tensioning member and the counterweight to lift. In the horizontal direction, the connection between the slider and the connector is located on one side of the tensioner; the connection between the counterweight and the connector is located on the other side of the tensioner and moves in the opposite direction to the lifting direction of the slider, so that the slider is suspended.

2. The lift device of claim 1, wherein, The tensioning element consists of two transmission wheels, which are spaced apart along the lifting direction of the sliding element and are rotatably connected to the support element so as to rotate with the connecting element.

3. The lift device of claim 2, wherein, The transmission wheel is a synchronous wheel, and the connecting member is a synchronous belt that meshes with the synchronous wheel; In the horizontal direction, the sliding member engages with the portion of the timing belt located on one side of the timing pulley, and the counterweight engages with the portion of the timing belt located on the other side of the timing pulley.

4. The lift device of claim 1, wherein, The slider includes: A movable rod that moves up and down relative to the support member, with the bottom end of the movable rod located inside the support member and the top end of the movable rod fitted with the member to be supported; The slider is located above the counterweight and is fixedly connected to the moving rod and the connecting member. It slides relative to the support member to rise and fall with the moving rod.

5. The lift device of claim 4, wherein, At least two counterweights are provided along the lifting direction. Each counterweight is fixedly connected to the connecting member. The counterweights are interconnected and move together with the connecting member.

6. The lift device of claim 4, wherein, The support member includes: The outer support rod forms the hollow cavity; An inner support rod is at least partially disposed within the hollow cavity and is fixedly connected to the outer support rod. The tensioning member is rotatably connected to at least one of the outer support rod and the inner support rod, and the moving rod is located between the outer support rod and the inner support rod.

7. The lift device of claim 6, wherein, The inner support rod has a first cavity and a second cavity that are separated from each other. The tensioning member, the connecting member and the slider are all installed in the first cavity. The second cavity is used to pass through the cable connecting the member to be supported.

8. The lift device of claim 7, wherein, The inner support rod is also provided with a protruding rib located in the first cavity, and the connector is arranged around the protruding rib; The slider is inserted into one side of the rib, and the counterweight is inserted into the other side of the rib.

9. The lift device of claim 7, wherein, The support member also includes: A fixing block is fixed to the top of the inner support rod and detachably connected to the inner support rod. The tensioning member is installed inside the fixing block, with the portion surrounding the upper end of the connecting member. And / or, the base is fixed to the bottom end of the inner support rod and is detachably connected to the inner support rod, and the tensioning member is installed inside the base around the lower end of the connector.

10. The lift device of claim 7, wherein, The top end of the inner support rod is provided with a fixing block, and the fixing block has a first sub-cavity, a second sub-cavity and a third sub-cavity. The first sub-cavity is separated from the second sub-cavity and communicates with the first cavity. The first sub-cavity is installed with the tensioning member that wraps around the upper end of the connector. The second sub-cavity communicates with the second cavity to allow the cable to pass through. The third sub-cavity communicates with the first sub-cavity and the second sub-cavity and is located below the first sub-cavity and the second sub-cavity. The inner support rod is inserted into the third sub-cavity.

11. The lift device of claim 6, wherein, The lifting assembly also includes: The main body is fixedly connected to the moving rod and spaced apart from the inner support rod; The pulley is rotatably connected to the main body and rolls against the outer support rod; The body is provided with at least two bodies spaced apart, and each body is provided with a pulley. The upper body of each body is fixedly connected to the slider.

12. An illumination device, characterized by The lighting device further includes the lifting device according to any one of claims 1 to 11, and further includes: The lamp holder is connected to the top of the slider; A support is attached to the bottom end of the support member; The lamp holder is the component to be supported.

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