Wire length adjusting mechanism and lamp

Abstract

The utility model relates to the field of lamps, and provides a wire length adjusting mechanism and a lamp. The cable length adjusting mechanism comprises a base and an installation base used for being installed on the lamp, a movable base is movably installed on the base, an adjusting wheel is arranged on the movable base, and the cable part is wound around the adjusting wheel. The positioning seat is used for being mounted on a mounting seat of the lamp; the adjusting piece is movably installed on the positioning base and connected with the movable base, and the adjusting piece and the positioning base are suitable for being connected in a guiding mode through a guiding structure; and the adjusting part is in transmission connection with the adjusting part to drive the adjusting part to act. The cable length adjusting mechanism can accurately adjust the length of the cable; the flexibility of cable length adjustment is improved; shaking and deviation caused by movement can be reduced, and the adjusting precision is improved; the adjusting process is smoother and more labor-saving, and the use experience of a user is improved; and the hanging height or angle of the lamp can be adjusted according to actual requirements, so that different illumination requirements are met.

Description

Technical Field

[0001] The utility model relates to the field of lamps, and provides a wire length adjusting mechanism and a lamp. Background Art

[0002] In the related art, the height of a lifting lamp can be flexibly adjusted according to the actual use requirements of users. Generally, a mounting base is installed on the roof, and the lamp body is hoisted and connected to the mounting base through multiple cables. During the lifting process of the lamp body, if the winding and unwinding speeds of the cables are inconsistent, the lamp body will be skewed, causing inconvenience to users. In addition, when users need to adjust the irradiation angle of the lamp body, the adjustment methods in the related art are also not conducive to users to achieve free adjustment. Summary of the Utility Model

[0003] An embodiment of the utility model provides a wire length adjusting mechanism to solve the defect that the lamp body cannot be adjusted when it is skewed during the lifting process in the related art

[0004] An embodiment of the utility model also provides a lamp.

[0005] An embodiment of the first aspect of the utility model provides a wire length adjusting mechanism, including:

[0006] A base for installing on the mounting base of the lamp, an activity seat is movably installed on the base, an adjusting wheel is arranged on the activity seat, and a part of the cable is wound around the adjusting wheel;

[0007] A positioning seat for installing on the mounting base of the lamp;

[0008] An adjusting member is movably installed on the positioning seat and connected to the activity seat, and the adjusting member and the positioning seat are adapted to be connected through a guiding structure in a guiding manner;

[0009] An adjusting part is in transmission connection with the adjusting member to drive the adjusting member to act.

[0010] According to an embodiment of the utility model, the adjusting member includes a rack, one end of the rack is connected to the activity seat, and the rack and the positioning seat are adapted to be connected through a guiding structure in a guiding manner.

[0011] According to an embodiment of the utility model, the guiding structure includes:

[0012] A guiding groove is opened in one of the rack and the positioning seat;

[0013] A guiding block is arranged on the other of the rack and the positioning seat, and the guiding block is connected to the guiding groove in a guiding manner.

[0014] According to an embodiment of the present utility model, the adjusting member includes an adjusting gear meshed and driven with the rack, the adjusting gear is used to be installed on the mounting seat or the base of the lamp, a connecting rod is connected to the adjusting gear, and an adjusting nut is arranged on the connecting rod.

[0015] According to an embodiment of the present utility model, a pressing member is arranged on the positioning seat, and at least part of the pressing member presses above the adjusting member.

[0016] According to an embodiment of the present utility model, an adjusting bolt is arranged on the pressing member, and the adjusting bolt is used to be installed on the mounting seat of the lamp to adjust the distance between the pressing member and the adjusting member.

[0017] According to an embodiment of the present utility model, the movable seat includes:

[0018] a seat body, and the adjusting wheel is rotatably installed on the seat body;

[0019] a support block, which is connected to the seat body to support the seat body.

[0020] According to an embodiment of the present utility model, along the length direction of the base, fixed seats are arranged on both sides of the movable seat, guide wheels are arranged on the fixed seats, and part of the cable is wound around the first side of the guide wheel and the second side of the adjusting wheel, wherein the directions of the first side of the guide wheel and the second side of the adjusting wheel are opposite.

[0021] An embodiment of the second aspect of the present utility model provides a lamp, which includes a mounting seat and a lamp body, the above-mentioned wire length adjusting mechanism is arranged on the mounting seat, and the cable is connected between the mounting seat and the lamp body.

[0022] According to an embodiment of the present utility model, the positioning seat and the mounting seat are adapted to be positioned through a positioning structure.

[0023] According to the wire length adjusting mechanism provided by the first aspect embodiment of the present utility model, by arranging an adjusting wheel on the movable seat, the cable can be partially wound thereon. The user can change the winding length of the cable on the adjusting wheel by adjusting the position of the adjusting wheel, so as to achieve precise adjustment of the cable length. This design is both convenient and fast, greatly improving the flexibility of cable length adjustment. The positioning seat, as the installation base, is stably installed on the mounting seat of the lamp, providing stable support for the entire adjusting mechanism. At the same time, the adjusting member and the positioning seat are connected through a guiding structure for guiding connection, ensuring the stability and accuracy of the adjusting member during movement. This guiding design not only reduces the shaking and deviation caused by movement, but also improves the adjustment accuracy. The adjusting member and the adjusting member are connected through a transmission connection mechanism. When the user operates the adjusting member, it can efficiently drive the adjusting member to act. This transmission design makes the adjustment process smoother and more labor-saving, improving the user experience. The overall structure of the wire length adjusting mechanism of the present utility model is designed compactly, and the connection between each component is tight and reasonable. This makes the entire mechanism not only occupy a small space, but also be convenient and fast to install. At the same time, due to the clear structure and independent components, it is also convenient for subsequent maintenance and replacement. By flexibly adjusting the cable length, the user can adjust the hanging height or angle of the lamp according to actual needs, so as to meet different lighting requirements. In addition, the stable positioning and guiding design also ensures the safety and stability of the lamp during use, avoiding potential safety hazards caused by cable loosening or breakage.

[0024] According to the lamp provided by the second aspect embodiment of the present utility model, by integrating the wire length adjusting mechanism, the lamp of the present utility model can conveniently adjust the height and angle of the lamp body to adapt to different lighting requirements and scenarios. The user can easily complete the adjustment process of the lamp body height and irradiation angle without the need to rely on additional tools or equipment. This convenience not only saves the user's time and energy, but also improves the comfort and satisfaction during use. The design of the wire length adjusting mechanism fully considers the stability and reliability of the cable during the adjustment process. By reducing friction, providing a smooth winding path, and ensuring the tight fit between components, the stability and reliability of the lamp during adjustment are ensured. The lamp design has strong adaptability and can be applied to cables of different lengths, diameters, and materials, as well as lamp bodies of different shapes and weights. At the same time, the user can also select wire length adjusting mechanisms of different specifications and models according to actual needs to meet specific usage requirements. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the present utility model or related technologies, the following will briefly introduce the drawings required for use in the embodiments or descriptions of related technologies. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic perspective view of the lamp provided by the present utility model.

[0027] Figure 2 It is a schematic structural view of the lamp provided by the present utility model with the upper cover removed.

[0028] Figure 3 It is Figure 2 The partial enlarged view at position A in

[0029] Figure 4 It is a partial exploded view of the base, bracket, and pulley.

[0030] Figure 5 It is a schematic perspective view of the bracket provided by the present utility model.

[0031] Figure 6 It is a schematic perspective view of a wire length adjustment mechanism provided by the present utility model installed on the mounting seat.

[0032] Figure 7 It is Figure 6 The partial enlarged view at position B in

[0033] Figure 8 It is a schematic perspective view of a wire length adjustment mechanism provided by the present utility model.

[0034] Figure 9 It is a schematic perspective view of another wire length adjustment mechanism provided by the present utility model installed on the mounting seat at one angle.

[0035] Figure 10 It is Figure 9 The partial enlarged view at position C in

[0036] Figure 11 It is a schematic perspective view of another wire length adjustment mechanism provided by the present utility model installed on the mounting seat at another angle.

[0037] Figure 12 It is a schematic structural view of the driving gear and the driven gear meshing provided by the present utility model.

[0038] Reference numerals:

[0039] 100. Base; 102. Contact member; 104. Deformable member; 106. Bracket; 108. Pulley; 110. Cable; 112. Lamp body; 114. Bottom plate; 116. Pressing block; 118. Side plate; 120. Installation groove; 122. Rotating shaft; 124. Installation hole; 126. Rotating hole; 128. Transition section; 130. First wheel body; 132. Second wheel body; 134. Winding section; 136. Slide groove; 138. Slide block; 140. Fixed seat; 142. Guide wheel; 144. Mounting seat; 146. Movable seat; 147. Positioning seat; 148. Adjusting wheel; 150. Adjusting member; 152. Adjusting member; 154. Turbine; 156. Worm; 158. Mounting member; 160. Fixed buckle; 162. Limiting portion; 164. Seat body; 166. Support block; 168. Guide groove; 170. Guide block; 172. Adjusting nut; 174. Pressing member; 176. Adjusting bolt; 178. Driving gear; 180. Driven gear. Detailed implementation manners

[0040] The following further describes in detail the implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0041] As Figures 1 to 12 shown, an embodiment of the first aspect of the present utility model provides a resistance encounter structure, including a base 100 and a bracket 106; a contact member 102 and a deformable member 104 are arranged on the base 100; the bracket 106 is movably installed on the base 100, a pulley 108 is arranged on the bracket 106, and a cable 110 is adapted to be partially wound around the pulley 108 to connect the lamp body 112 of the lamp and the mounting seat 144 of the lamp. When the lamp body 112 does not encounter resistance, the cable 110 is adapted to press the pulley 108 so that the deformable member 104 is electrically connected to the contact member 102 or the contact member 102 is electrically conducted. When the lamp body 112 encounters resistance, the deformable member 104 is adapted to deform to separate from the contact member 102, and the electrical connection between the deformable member 104 and the contact member 102 is disconnected or the contact member 102 is electrically disconnected.

[0042] According to the obstruction structure provided by the embodiment of the first aspect of the utility model, the real-time monitoring of the movement state of the lamp body 112 is realized through the combination of the contact member 102 and the deformable member 104. When the lamp body 112 is working normally, the cable 110 presses the pulley 108, thereby prompting the deformable member 104 to maintain an electrical connection with the contact member 102 or causing the contact member 102 to be electrically conductive due to the force. Once the lamp body 112 encounters an obstacle and is blocked during movement, the pressure applied by the cable 110 on the pulley 108 is reduced, resulting in the release of the pressure on the pulley 108, and the deformable member 104 is immediately deformed and separated from the contact member 102. At this time, the electrical connection between the deformable member 104 and the contact member 102 is disconnected, or the contact member 102 is electrically disconnected due to the reduction of external force. This automatic detection mechanism can quickly respond to the obstruction of the lamp body 112 without manual intervention. In the intelligent lighting system, especially the lamps that need to automatically adjust the irradiation height, the introduction of the obstruction structure effectively avoids mechanical damage or electrical failure caused by continuous obstruction. By timely detecting and responding to obstruction situations, safety hazards such as motor overload and cable 110 breakage can be prevented, significantly improving the safety and reliability of the system. The obstruction structure is composed of simple components such as a base 100, a bracket 106, a pulley 108, a cable 110, a contact member 102, and a deformable member 104. The structure is compact and easy to install. At the same time, all components are standard parts or easy-to-procure components, which reduces maintenance costs and difficulties and improves the maintainability and service life of the equipment.

[0043] Please continue to see Figures 1 to 12 The first embodiment of the utility model provides a resistance structure, which is intended to improve the safety and reliability of the lamp during the lifting process. The resistance structure is mainly composed of a base 100, a bracket 106, a contact member 102, a deformable member 104, a pulley 108 and other components.

[0044] The base 100 is the basic part of the entire resistance structure. The base 100 is firmly mounted on the mounting base 144 of the lamp. The mounting base 144 can be installed on the roof, ceiling, etc. The base 100 is provided with a contact member 102 and a deformation member 104, which are the core of the resistance detection mechanism.

[0045] The contact member 102 is a conductive element, and the contact member 102 is fixed to the base 100. The main function of the contact member 102 is to form an electrical connection with the deformable member 104, so as to realize the start and stop of the lifting action. It can be understood that when the contact member 102 is in contact with the deformable member 104, the circuit is turned on and the lifting action is started. When the contact member 102 is separated from the deformable member 104, the circuit is disconnected and the lifting action stops. In the embodiment of the utility model, the contact member 102 can be a PCB board, a micro switch or other components, and the deformable member 104 can be a pot piece, an elastic contact piece, etc.

[0046] The deformation component 104 is a component that can deform under the action of an external force and also has electrical conductivity. In the embodiment of the present utility model, the deformation component 104 is taken as an example of a dome switch. In the unobstructed state, the deformation component 104 (i.e., the dome switch) remains in contact with the contact component 102 to form an electrical connection. However, when subjected to an external force (such as the slack of the cable 110 caused by the obstruction of the lamp body 112), the deformation component 104 will deform, thereby separating from the contact component 102 and disconnecting the electrical connection.

[0047] The bracket 106 is movably mounted on the base 100 and is used to support and fix the pulley 108. The design of the bracket 106 allows it to move freely within a certain range to meet the requirements of the pulley 108's movement. The pulley 108 is mounted on the bracket 106, and part of the cable 110 is wound around the pulley 108. The design of the pulley 108 aims to reduce the friction and wear of the cable 110 during movement and ensure that the cable 110 can smoothly transmit electricity and signals. When the lamp body 112 is not obstructed, the cable 110 presses against the pulley 108 to keep the deformation component 104 in contact with the contact component 102. When the lamp body 112 is obstructed, the cable 110 becomes slack, and the pressure exerted by the cable 110 on the pulley 108 disappears. At this time, the deformation component 104 deforms to a certain extent and separates from the contact component 102, thereby disconnecting the electrical connection, and the lifting action stops immediately.

[0048] In summary, through the change in the electrical connection state between the contact component 102 and the deformation component 104, this obstruction structure can monitor in real time whether the lamp body 112 or the entire lamp encounters an obstacle. Once an obstruction is detected, the deformation component 104 will immediately deform and disconnect the electrical connection with the contact component 102, thereby triggering the corresponding protection mechanism. The introduction of the obstruction structure effectively avoids the collision and damage that may occur when the lamp continues to operate under obstruction. This not only protects the lamp itself but also prevents potential safety hazards caused by collisions and improves the safety during use.

[0049] According to an embodiment of the present utility model, the bracket 106 includes a bottom plate 114, and a pressing block 116 is provided on the side of the bottom plate 114 facing the contact component 102. When the lamp body 112 is not obstructed, the pressing block 116 is adapted to press tightly against the deformation component 104.

[0050] As Figure 3 and Figure 5 shown, in a specific embodiment of the present utility model, the design of the bracket 106 has been further optimized and refined.

[0051] Specifically, the bracket 106 is not only movably mounted on the base 100, but also particularly includes a bottom plate 114 and a pressing block 116 disposed on the bottom plate 114 and protruding toward the contact member 102. This design makes the detection mechanism of the obstruction structure more accurate and reliable.

[0052] The bottom plate 114 is one of the main components of the bracket 106 and maintains a certain distance from the base 100. The presence of the bottom plate 114 provides a stable mounting position for the pressing block 116, ensuring the stability and consistency of the pressing block 116 when pressing the deformable member 104.

[0053] The pressing block 116 is disposed on the side of the bottom plate 114 facing the contact member 102 to ensure that the deformable member 104 can be accurately pressed when the lamp body 112 is not obstructed. The pressing block 116 is usually made of a material with a certain hardness and wear resistance, such as hard plastic, to ensure that it is not easily damaged or deformed during long-term use.

[0054] When the lamp body 112 is not obstructed, the cable 110 is partially wound around the pulley 108 and generates a certain pressing force on the pulley 108. This pressing force is transmitted to the bracket 106 through the pulley 108 and then acts on the pressing block 116. When the pressing block 116 is subjected to a downward pressure, it will closely adhere to the deformable member 104 and press it tightly. At this time, a close contact is maintained between the deformable member 104 and the contact member 102 to form an electrical connection.

[0055] Once the lamp body 112 encounters an obstacle and is obstructed during the lifting process, the pressing force exerted by the cable 110 on the pulley 108 decreases or disappears, and at the same time, the pressing force borne by the pressing block 116 decreases or disappears synchronously. At this time, the pressing block 116 will separate from the deformable member 104, allowing the deformable member 104 to deform and separate from the contact member 102. During this process, the electrical connection between the contact member 102 and the deformable member 104 is disconnected, thus triggering the obstruction protection mechanism.

[0056] By providing the bottom plate 114 and the pressing block 116 on the bracket 106, this embodiment further improves the detection accuracy of the obstruction structure. The pressing block 116 can ensure that a close contact and a stable electrical connection are maintained between the deformable member 104 and the contact member 102 when the lamp body 112 is not obstructed. When the lamp body 112 is obstructed, the rapid separation of the pressing block 116 can accurately trigger the protection mechanism. The design of the pressing block 116 and the bottom plate 114 makes the obstruction structure more stable and reliable during long-term use. They can withstand a certain amount of external force and wear without affecting the accuracy and sensitivity of the detection mechanism.

[0057] According to an embodiment of the present utility model, the bracket 106 further includes a side plate 118 connected to the bottom plate 114. An installation groove 120 is formed on the side plate 118. A rotating shaft 122 is provided on the pulley 108, and the rotating shaft 122 is detachably installed in the installation groove 120.

[0058] As Figure 5 shown, in an embodiment of the present utility model, in addition to the previously mentioned bottom plate 114 and pressing block 116, the bracket 106 further includes a side plate 118 connected to the bottom plate 114 and an installation groove 120 formed on the side plate 118. This design makes the installation and disassembly of the pulley 108 more convenient, and also enhances the overall stability of the bracket 106.

[0059] The side plate 118 can be vertically connected to the bottom plate 114 to jointly form the main structure of the bracket 106. The design of the side plate 118 should consider both the connection strength with the bottom plate 114 and the installation requirements of the pulley 108. The installation groove 120 formed on the side plate 118 is specifically designed for the rotating shaft 122 of the pulley 108. The shape and size of the installation groove 120 match those of the rotating shaft 122 of the pulley 108 to ensure that the rotating shaft 122 can be stably installed therein.

[0060] A rotating shaft 122 is provided on the pulley 108. In this embodiment, the rotating shaft 122 and the installation groove 120 adopt a detachable installation method. By inserting into the installation groove 120 and fixing it to the bracket 106, a stable connection between the pulley 108 and the bracket 106 is achieved.

[0061] Since the rotating shaft 122 and the installation groove 120 adopt a detachable design, when it is necessary to replace or maintain the pulley 108, the user can easily take out the rotating shaft 122 from the installation groove 120 and then install a new pulley 108. This design not only simplifies the maintenance process but also reduces the maintenance cost.

[0062] By forming the installation groove 120 on the side plate 118 and adopting a detachable rotating shaft 122 design, the installation and disassembly convenience of the pulley 108 can be significantly improved. The user can quickly complete the replacement or maintenance of the pulley 108 without complex operations or tools. The design of this embodiment also has a certain degree of flexibility. The user can select appropriate specifications of the pulley 108 and the rotating shaft 122 for installation and replacement according to actual needs to meet the usage requirements in different scenarios.

[0063] According to an embodiment of the present utility model, the installation groove 120 includes an installation hole 124 and a rotation hole 126 that communicate with each other. The edge of the installation hole 124 communicates with the edge of the side plate 118. A transition section 128 is formed between the installation hole 124 and the rotation hole 126. When the rotating shaft 122 is installed in the rotation hole 126, the transition section 128 is used to prevent the rotating shaft 122 from disengaging from the rotation hole 126.

[0064] As Figure 5 shown, in an embodiment of the present utility model, the design of the installation groove 120 on the side plate 118 has been more detailedly optimized. The installation groove 120 not only provides an installation space for the rotating shaft 122 of the pulley 108, but also ensures the stability and safety of the rotating shaft 122 through a specific structural design. Specifically, the installation groove 120 is composed of an installation hole 124 and a rotation hole 126 that communicate with each other. The two are connected by a transition section 128, forming an ingenious structure that is both convenient for installation and can prevent the rotating shaft 122 from disengaging.

[0065] The installation hole 124 is a part of the installation groove 120, and its edge communicates with the edge of the side plate 118. This design allows the user to easily insert the rotating shaft 122 into the installation groove 120 from the side of the side plate 118. The size and shape of the installation hole 124 match the corresponding part of the rotating shaft 122 to ensure that the rotating shaft 122 can be smoothly inserted and preliminarily positioned.

[0066] The rotation hole 126 is the main part of the installation groove 120 and is used to accommodate most of the length of the rotating shaft 122. When the rotating shaft 122 is completely inserted into the installation groove 120 and passes through the installation hole 124, it will enter the rotation hole 126 and rotate here. The inner diameter of the rotation hole 126 can be slightly larger than the outer diameter of the rotating shaft 122 to allow the pulley 108 to rotate more smoothly.

[0067] The transition section 128 is located between the installation hole 124 and the rotation hole 126 and is a gradually changing area. Its main function is to prevent the rotating shaft 122 from accidentally disengaging from the rotation hole 126 after installation. The design of the transition section 128 enables the rotating shaft 122 to gradually adapt to the change in the hole diameter during the insertion process and be restricted to a certain extent after reaching the rotation hole 126. Even under the action of an external force, it is difficult for the rotating shaft 122 to be directly pulled out of the rotation hole 126, thus ensuring the stability and safety of the installation.

[0068] When installing the rotating shaft 122, the user first aligns the rotating shaft 122 with the installation hole 124 and gently pushes it in. As the rotating shaft 122 goes deeper, it will gradually pass through the transition section 128 and enter the rotation hole 126. During this process, the user may feel a certain resistance, which is caused by the contraction design of the transition section 128. However, once the rotating shaft 122 completely enters the rotation hole 126 and rotates freely, it means that the installation has been successful.

[0069] By introducing the design of the transition section 128, the installation groove 120 can more effectively prevent the rotating shaft 122 from disengaging from the rotating hole 126. Even under the action of external factors such as strong wind, vibration or accidental collision, the rotating shaft 122 can maintain a stable installation state, thus ensuring the normal operation of the pulley 108 and the smooth winding of the cable 110.

[0070] According to an embodiment of the present invention, the pulley 108 includes a first wheel body 130 and a second wheel body 132 which are oppositely arranged. A winding section 134 is formed between the first wheel body 130 and the second wheel body 132, and the cable 110 is partially wound around the winding section 134.

[0071] As Figure 3 shown, in an embodiment of the present invention, the design of the pulley 108 is further optimized to improve the efficiency and stability of winding the cable 110. The pulley 108 is composed of a first wheel body 130 and a second wheel body 132 which are oppositely arranged. A key winding section 134 is formed between the two, and the cable 110 is wound around this winding section 134 to achieve smooth movement and adjustment.

[0072] The pulley 108 is formed with two oppositely arranged wheel bodies, namely the first wheel body 130 and the second wheel body 132 - constituted. These two wheel bodies have the same diameter and shape to ensure that they can be installed parallel and opposite to each other. A certain gap is maintained between the first wheel body 130 and the second wheel body 132, and the size of this gap is determined according to the diameter of the cable 110 and the required winding effect.

[0073] The gap between the first wheel body 130 and the second wheel body 132 forms the winding section 134, which is the key area for winding the cable 110. The cable 110 is guided and fixed on the winding section 134 and moves smoothly as the pulley 108 rotates. The design of the winding section 134 needs to consider factors such as the frictional resistance, bending radius of the cable 110, and wear resistance during long-term use to ensure that the cable 110 will not be excessively worn or damaged during the winding process.

[0074] By designing a reasonable winding section 134, the pulley 108 can more effectively guide the movement of the cable 110. This can not only reduce the frictional resistance of the cable 110 during movement, but also improve the winding speed and stability of the cable 110, thereby improving the operating efficiency of the entire device. The relative arrangement of the first wheel body 130 and the second wheel body 132 and the design of the winding section 134 enable the pulley 108 to maintain a stable posture during rotation. This helps to reduce the jitter and deviation of the cable 110 during the winding process, thereby improving the overall stability of the device.

[0075] According to an embodiment of the present utility model, in the direction from the rotating shaft 122 towards the winding section 134, the diameters of the first wheel body 130 and the second wheel body 132 gradually decrease.

[0076] As Figure 3 shown, in an embodiment of the present utility model, the design of the pulley 108 has been more finely adjusted. Specifically, in the direction towards the winding section 134, the diameters of the first wheel body 130 and the second wheel body 132 gradually decrease. This design not only improves the smoothness of the winding of the cable 110, but also enhances the overall performance and stability of the pulley 108.

[0077] The first wheel body 130 and the second wheel body 132 are optimized in structure. Their diameters are not exactly the same, but start from the rotating shaft 122 and gradually decrease towards the winding section 134. This design of gradually changing diameter helps the cable 110 to transition more smoothly during the winding process, enabling the cable 110 to be concentrated on the winding section 134 between the first wheel body 130 and the second wheel body 132.

[0078] As the diameter gradually decreases, the guiding effect of the first wheel body 130 and the second wheel body 132 on the cable 110 becomes more obvious. The path of the cable 110 on the winding section 134 is more precisely controlled, avoiding problems such as winding and knotting caused by unstable paths. This design improves the moving efficiency and stability of the cable 110, ensuring the normal operation of the device.

[0079] According to an embodiment of the present utility model, a chute 136 is provided on the base 100, and a slider 138 is provided on the bracket 106. The slider 138 is slidably connected to the chute 136.

[0080] As Figure 3 and Figure 5 shown, in another embodiment of the present utility model, the installation and adjustment of the pulley 108 have been further optimized. Specifically, the base 100 is designed with a chute 136, and the bracket 106 is equipped with a slider 138 that matches the chute 136. This design enables the bracket 106 to be slidably connected along the chute 136 on the base 100, thereby realizing flexible adjustment of the position of the pulley 108.

[0081] The base 100, as the support structure of the pulley 108 system, precisely processes the chute 136 structure on the side plate 118 of the base 100. The shape, size, and position of the chute 136 are designed according to the specific requirements of the pulley 108 system to ensure that the bracket 106 can slide stably and smoothly thereon. The material of the chute 136 is usually selected as wear-resistant and corrosion-resistant materials to extend the service life.

[0082] The bracket 106 is specifically provided with a slider 138. The slider 138 has a shape and size that fits the chute 136, and can be tightly embedded in the chute 136 and slide along its trajectory. The slider 138 is usually made of a material with a low coefficient of friction to reduce the resistance during sliding.

[0083] When the slider 138 is embedded in the chute 136 of the base 100, a sliding connection mechanism is formed. This mechanism allows the bracket 106 to slide within a certain range in the vertical direction. Furthermore, when a certain pressing force is applied to the pulley 108 by the cable 110, the slider 138 can slide downward along the chute 136. When the pressing force applied to the pulley 108 by the cable 110 decreases or disappears, the slider 138 can slide upward along the chute 136 under the deformation action of the deformable member 104. Thus, during the sliding action, the movement of the pulley 108 can be guided through the cooperation of the slider 138 and the chute 136.

[0084] According to an embodiment of the present invention, a fixed seat 140 is provided on the base 100, and a guide wheel 142 is provided on the fixed seat 140. A part of the cable 110 is wound around the guide wheel 142.

[0085] As Figure 3 shown, in an embodiment of the present invention, in order to further enhance the stability and smoothness of the cable 110 during adjustment, along the length direction of the base 100, a fixed seat 140 is further provided on the base 100, and a guide wheel 142 is installed on the fixed seat 140. This design enables the cable 110 to move more smoothly during adjustment, reducing the resistance caused by the twisting or winding of the cable 110.

[0086] The guide wheel 142 is rotatably installed on the fixed seat 140 for guiding the moving direction of the cable 110. The cable 110 not only needs to be wound around the adjustment wheel 148, but also needs to be guided by the guide wheel 142. When the cable 110 is wound around the adjustment wheel 148, a part of the cable 110 will bypass the guide wheel 142, forming a relatively stable moving path. The presence of the guide wheel 142 enables the cable 110 to maintain a certain tension and directionality during movement, reducing the resistance caused by the twisting or winding of the cable 110. At the same time, the rotatability of the guide wheel 142 also ensures that the cable 110 will not be subjected to excessive friction and wear during movement.

[0087] In an embodiment of the present invention, in order to adjust the extended length of the cable 110, a wire length adjustment mechanism is further provided on the mounting seat 144. The wire length adjustment mechanism can be adjusted in at least the following two different ways.

[0088] Adjustment method one:

[0089] In this adjustment method, the wire length adjustment mechanism includes a base 100, an adjustment member 150, and an adjusting member 152; a movable seat 146 is movably mounted on the base 100, an adjusting wheel 148 is provided on the movable seat 146, and a part of the cable 110 is wound around the adjusting wheel 148; the adjustment member 150 is mounted on the base 100 and is in transmission connection with the movable seat 146; the adjusting member 152 is in transmission connection with the adjustment member 150 to drive the adjustment member 150 to act.

[0090] The wire length adjustment mechanism drives the adjustment member 150 by operating the adjusting member 152, and then drives the movement of the movable seat 146 on the base 100. Since the adjusting wheel 148 is provided on the movable seat 146 and a part of the cable 110 is wound around the adjusting wheel 148, the movement of the movable seat 146 will change the winding length of the cable 110 on the adjusting wheel 148, thereby realizing flexible adjustment of the length of the cable 110. This design makes the winding and unwinding of the cable 110 simple and fast, meeting the lighting or other requirements in different scenarios. The traditional adjustment method of the cable 110 often requires manually pulling the cable 110 or adjusting the fixing point, which is cumbersome and inaccurate. The wire length adjustment mechanism of the present utility model realizes automatic adjustment of the length of the cable 110 through mechanical transmission. The user only needs to gently rotate the adjusting member 152 to complete the adjustment process, greatly improving the convenience and efficiency of use. The design of the adjusting wheel 148 helps to reduce the friction and resistance of the cable 110 during the adjustment process, making the winding and unwinding of the cable 110 smoother. At the same time, the connection structure between the movable seat 146 and the base 100 is also carefully designed to ensure the stability and reliability during the adjustment process. This design avoids the phenomena of breakage or detachment caused by excessive stretching or slack of the cable 110, and extends the service life of the cable 110. The wire length adjustment mechanism of the present utility model has a compact structure and reasonable design, and the connection between each component is tight and the cooperation is tacit. At the same time, it also provides a simple installation method, and the user can easily install it at the specified position according to needs, without complex installation steps and tools.

[0091] Please continue to refer to Figures 6 to 8 , the base 100, as the basic support component of the entire wire length adjustment mechanism, is designed to be stable and have a certain load-bearing capacity. It provides a fixed platform for installing components such as the adjustment member 150 and the movable seat 146, ensuring the stability of the entire mechanism during the adjustment process.

[0092] The movable seat 146 is movably mounted on the base 100. This design enables the movable seat 146 to freely move on the base 100 in a specific direction, thereby changing the distance between the adjusting wheel 148 provided thereon and the base 100.

[0093] The adjusting wheel 148 is installed on the movable seat 146 and is the main component around which the cable 110 is wound. Part of the cable 110 is wound around the adjusting wheel 148, and the length of the cable 110 is adjusted by adjusting the distance between the adjusting wheel 148 and the base 100.

[0094] The adjusting member 150 is installed on the base 100 and a transmission connection is established between the adjusting member 150 and the movable seat 146. This transmission connection can be achieved through mechanical transmission methods such as gears, racks, linkages, and lead screw nuts. The main function of the adjusting member 150 is to transmit the driving force from the adjusting member 152 to the movable seat 146, driving the movable seat 146 to move relative to the base 100 to drive the adjusting wheel 148 to move relative to the base 100, thereby realizing the adjustment of the length of the cable 110.

[0095] The adjusting member 152 is the part directly operated by the user, and it is in transmission connection with the adjusting member 150 to drive its movement. The adjusting member 152 can be designed in various forms such as a knob, a handle, a lever, etc. The user makes the adjusting member 152 generate a corresponding driving force and transmit it to the adjusting member 150 through operations such as rotation, pushing, or pressing.

[0096] By operating the adjusting member 152, the user can conveniently drive the adjusting member 150 to move, and then drive the movable seat 146 to move relative to the base 100. Since part of the cable 110 is wound around the adjusting wheel 148, the movement of the movable seat 146 will change the winding length of the cable 110 on the adjusting wheel 148, thereby realizing the flexible adjustment of the length of the cable 110. This design makes the winding and unwinding of the cable 110 simple and fast, meeting the usage requirements in different scenarios.

[0097] According to an embodiment of the present invention, the adjusting member 150 includes a screw rod, the screw rod is threadedly connected to the base 100, and a connecting head is provided at the first end of the screw rod, and the connecting head is rotatably connected to the movable seat 146.

[0098] As Figure 7 shown, in an embodiment of the present invention, the design of the adjusting member 150 is further refined and optimized. Specifically, the adjusting member 150 adopts a common mechanical element, the screw rod, and through its special structure and working principle, the precise control of the position of the movable seat 146 is realized, thereby adjusting the length of the cable 110.

[0099] The screw rod is the core component of the adjusting member 150, and the screw rod is designed as a cylinder with external threads. These external threads match the internal threads on the base 100, enabling the screw rod to rotate and move along the axial direction of the base 100. The material of the screw rod is usually selected as a metal with high strength and wear resistance to ensure the stability and reliability of its long-term use.

[0100] The first end of the screw is provided with a connector, which is a key component for connecting with the movable seat 146. The connector is usually designed to have a certain form of rotating connection structure (such as a bearing, a pin, etc.) to ensure that it can rotate freely relative to the movable seat 146 while transmitting the axial force of the screw. This design allows the user to smoothly drive the movable seat 146 to move relative to the base 100 when rotating the screw without encountering additional friction resistance.

[0101] When the user needs to adjust the length of the cable 110, it can be achieved by rotating the screw. The specific steps are as follows:

[0102] Rotating the screw: The user holds the appropriate position of the screw (such as the other end of the screw or a special rotating handle) and applies a rotating force. Due to the threaded connection between the screw and the base 100, the rotating force will be converted into an axial force of the screw, pushing the screw to move along the axial direction of the base 100.

[0103] Driving the movable seat 146: As the screw moves, the connector at the first end thereof will push the movable seat 146 to move relative to the base 100. Due to the rotating connection structure between the connector and the movable seat 146, the movable seat 146 can move smoothly along the axial direction of the base 100 while maintaining its freedom of rotation relative to the screw.

[0104] Adjusting the length of the cable 110: Since the cable 110 is partially wound around the adjusting wheel 148 on the movable seat 146, the movement of the movable seat 146 will change the length of the cable 110 wound around the adjusting wheel 148. In this way, the user can flexibly adjust the length of the cable 110 by rotating the screw.

[0105] The threaded connection between the screw and the base 100 and the rotational connection structure between the connector and the movable seat 146 enable the user to accurately control the position of the movable seat 146 when rotating the screw, thereby achieving accurate adjustment of the length of the cable 110. The rotational connection design of the connector reduces the friction resistance of the screw during rotation, allowing the user to experience a smoother operating experience when adjusting the length of the cable 110. The screw, as the main component of the adjustment member 150, has a compact structure and is easy to install and disassemble. This design not only saves space, but also facilitates the user's subsequent maintenance and care work.

[0106] According to one embodiment of the utility model, the adjusting member 152 includes a turbine 154 and a worm 156 that mesh with each other, the turbine 154 and the worm 156 are rotatably mounted on the base 100, and the turbine 154 is connected to the screw in a driving manner; a mounting member 158 is provided on the base 100, and the turbine 154 is rotatably mounted on the mounting member 158; a fixing buckle 160 is provided on the base 100, and the worm 156 is rotatably mounted on the fixing buckle 160.

[0107] like Figure 7 As shown, in one embodiment of the present invention, the design of the adjusting member 152 is further elaborated. The adjusting member 152 utilizes the meshing transmission principle of the worm gear 154 and the worm gear 156 to achieve indirect drive of the screw, thereby adjusting the length of the cable 110. The following is a detailed description of the technical solution:

[0108] The inner teeth of the turbine 154 mesh with the helical teeth of the worm 156, which can transmit the rotational power of the worm 156 and convert it into its own rotational motion. The turbine 154 is rotatably mounted in the mounting member 158 on the base 100 to ensure that it can rotate smoothly without generating excessive friction resistance.

[0109] The mounting member 158 is a component provided on the base 100, and is used to fix the turbine 154 and ensure that it can rotate smoothly. The mounting member 158 is usually designed to have a certain rigidity and stability structure to withstand the force and torque generated by the turbine 154 during the rotation process. The mounting member 158 is usually connected to the turbine 154 through a rotating connection structure such as a bearing to reduce friction resistance and improve rotation efficiency.

[0110] The spiral teeth of the worm 156 are closely matched with the internal teeth of the turbine 154, and the turbine 154 can be driven to rotate by rotating the worm 156. The worm 156 is also rotatably mounted on the base 100, but is specifically mounted by a fixing buckle 160. The fixing buckle 160 provides a stable support point for the worm 156 and allows it to rotate freely around its own axis.

[0111] When the user needs to adjust the length of the cable 110, it can be achieved by rotating the worm 156. The specific steps are as follows:

[0112] Rotating the worm 156: The user holds a suitable position of the worm 156 (such as one end of the worm 156 or a special rotating handle) and applies a rotating force. Due to the meshing relationship between the worm 156 and the worm gear 154, the rotating force will be transmitted to the worm gear 154 and drive it to rotate.

[0113] Drive the turbine 154: As the worm 156 rotates, the turbine 154 is subjected to the meshing force and starts to rotate. The rotational motion of the turbine 154 is transmitted to the screw, which drives the screw to move along the axial direction of the base 100.

[0114] Adjusting the length of the cable 110: The movement of the screw will drive the movable seat 146 connected thereto to move along the base 100, thereby changing the winding length of the cable 110 on the adjusting wheel 148. In this way, the user can flexibly adjust the length of the cable 110 by rotating the worm 156.

[0115] The meshing transmission of the turbine 154 and the worm 156 has a large transmission ratio and high transmission efficiency, which can ensure that the user can smoothly drive the screw to move when rotating the worm 156, so as to achieve precise adjustment of the length of the cable 110. The rotatable installation of the turbine 154 and the worm 156 and the reasonable design of the transmission device make the whole adjustment process stable and reliable, reducing failures and damages caused by vibration or loosening.

[0116] According to an embodiment of the present invention, the second end limiting portion 162 of the screw has a limiting portion 162, and the limiting portion 162 is used to define the limit position of the screw and the turbine 154.

[0117] As Figure 7 shown, in an embodiment of the present invention, the design of the screw is further optimized, especially a limiting portion 162 is added to its second end. This design aims to ensure that the relative position between the screw and the turbine 154 is precisely controlled during the adjustment process, avoiding exceeding the predetermined limit position, thereby protecting the stability and safety of the whole adjustment mechanism.

[0118] A limiting portion 162 is designed at the second end of the screw (i.e., the end far from the turbine 154). The limiting portion 162 can be a protruding circular ring, a stop block or other forms of limiting structures, and its diameter or size is larger than the main body part of the screw to limit the limit position of the screw during movement.

[0119] The main function of the limiting portion 162 is to define the limit position of the screw during movement. When the screw moves to the predetermined position, the limiting portion 162 will contact the turbine 154, thereby preventing the screw from continuing to move. This can ensure that the relative position between the screw and the turbine 154 does not exceed the design range, preventing damages or failures caused by excessive movement.

[0120] By restricting the limit position of the screw, the limiting portion 162 effectively prevents mechanism damages or failures caused by excessive movement, ensuring the stability and safety of the whole adjustment mechanism.

[0121] According to an embodiment of the present invention, the movable seat 146 includes a seat body 164 and a support block 166; the adjusting wheel 148 is rotatably installed on the seat body 164; the support block 166 is connected to the seat body 164 to support the seat body 164.

[0122] As Figure 8 shown, in an embodiment of the present invention, the seat body 164 is a structure with certain rigidity and stability, and the adjusting wheel 148 is rotatably installed on the seat body 164 for winding the cable 110.

[0123] The support block 166 is a component connected to the seat body 164 to support the seat body 164. The support block 166 is usually designed as a sturdy and durable structure and has certain elastic or buffering properties to ensure that the seat body 164 can remain stable and reduce vibration and noise when subjected to external forces. The support block 166 and the seat body 164 can be connected and fixed by bolts or other means.

[0124] By designing a reasonable structure of the adjusting wheel 148 and the support block 166, the stability and reliability of the cable 110 during the winding and unwinding processes can be ensured, thereby improving the accuracy and precision of the cable 110 length adjustment. The support block 166 provides a stable supporting effect for the seat body 164, enabling the seat body 164 to remain stable and reduce vibration and noise when subjected to external forces. This helps to improve the stability and reliability of the entire adjusting mechanism.

[0125] According to an embodiment of the present invention, along the outer circumferential surface of the adjusting wheel 148, a recessed portion is formed on the adjusting wheel 148, and a part of the cable 110 is wound around the recessed portion.

[0126] As Figure 8 shown, in an embodiment of the present invention, the design of the adjusting wheel 148 has been further innovated, especially a recessed portion is formed on its outer circumferential surface. This design enables the cable 110 to be more stably positioned on the adjusting wheel 148 during the winding process, improving the firmness of the cable 110 fixation and the adjustment precision.

[0127] The outer circumferential surface of the adjusting wheel 148 is the main area where the cable 110 is wound. To optimize the winding effect of the cable 110, a specific structure, namely a recessed portion, is designed along the outer circumferential surface. The recessed portion is a groove or recessed structure formed along the outer circumferential surface of the adjusting wheel 148. This structure is a continuous annular groove, and during the winding process of the cable 110, part of the cable will be guided into the recessed portion. Due to the existence of the recessed portion, the cable 110 can naturally be embedded therein during winding, forming a stable winding structure. This design reduces the possibility of slippage and loosening of the cable 110 during the winding process, improving the firmness of the cable 110 fixation.

[0128] The design of the recessed portion enables the cable 110 to fit more closely on the adjusting wheel 148 during the winding process, improving the firmness of the cable 110 fixation. The design of the recessed portion can also reduce the direct contact area between the cable 110 and the adjusting wheel 148 to a certain extent, reducing the wear caused by friction and extending the service life of the cable 110 and the adjusting wheel 148.

[0129] Adjusting method two:

[0130] In this adjustment method, the wire length adjustment mechanism includes a base 100, a positioning seat 147, an adjustment member 150, and an adjustment member 152; a movable seat 146 is movably installed on the base 100, an adjustment wheel 148 is provided on the movable seat 146, and part of the cable 110 is wound around the adjustment wheel 148; the positioning seat 147 is used to be installed on the mounting seat 144 of the lamp; the adjustment member 150 is movably installed on the positioning seat 147 and is connected to the movable seat 146, and the adjustment member 150 and the positioning seat 147 are adapted to be connected by a guiding structure; the adjustment member 152 is in transmission connection with the adjustment member 150 to drive the adjustment member 150 to act.

[0131] In this wire length adjustment mechanism, the base 100 serves as the basic support component of the entire adjustment mechanism. On the base 100, a movable seat 146 is movably installed, which means that the movable seat 146 can move or rotate within a certain range on the base 100 to adapt to the adjustment requirements of the length of the cable 110.

[0132] An adjustment wheel 148 is provided on the movable seat 146. By rotating the adjustment wheel 148, the winding length of the cable 110 on the adjustment wheel 148 can be changed, so as to achieve the purpose of adjusting the length of the cable 110.

[0133] The positioning seat 147 is mainly used to be installed on the mounting seat 144 of the lamp, playing a role in fixing and supporting the adjustment member 152.

[0134] The adjustment member 150 is a component movably installed on the positioning seat 147. The adjustment member 150 is connected to the movable seat 146 and is used to adjust the relative position between the movable seat 146 and the positioning seat 147. The adjustment member 150 and the positioning seat 147 are connected by a guiding structure for guiding. This guiding design can ensure the stability and accuracy of the adjustment member 150 during movement, avoiding deviation or shaking.

[0135] The adjustment member 152 is in transmission connection with the adjustment member 150. The user can drive the adjustment member 150 to act by operating the adjustment member 152.

[0136] The user can change the winding length of the cable 110 on the adjustment wheel 148 by adjusting the position of the adjustment wheel 148. The transmission connection design between the adjustment member 152 and the adjustment member 150 is reasonable and efficient. The user can smoothly drive the adjustment member 150 to act by operating the adjustment member 152. This efficient transmission and driving design makes the adjustment process more labor-saving and smooth, improving the user experience.

[0137] According to an embodiment of the present invention, the adjustment member 150 includes a rack, one end of the rack is connected to the movable seat 146, and the rack and the positioning seat 147 are adapted to be connected by a guiding structure for guiding.

[0138] As Figures 9 to 11 shown, according to an embodiment of the present utility model, the design of the adjusting member 150 has been further refined and optimized. In this embodiment, the adjusting member 150 mainly includes a rack, and the linear motion characteristic of the rack is utilized to drive the movable seat 146 to move, thereby realizing the adjustment of the length of the cable 110.

[0139] One end of the rack is fixedly connected to the movable seat 146. This connection method ensures that when the rack moves, it can directly drive the movable seat 146 to move synchronously. This direct mechanical connection improves the transmission efficiency and reliability.

[0140] The rack and the positioning seat 147 are connected by a guiding structure for guiding. The function of this guiding structure is to ensure that the rack can maintain a stable linear motion trajectory during movement, avoiding deviation or shaking. This is crucial for improving the adjustment accuracy and maintaining the stability of the mechanism.

[0141] The guiding structure can be a combination of forms such as a slide rail, a guide groove 168, or a rolling bearing. For example, a slide rail or a guide groove 168 can be designed on one side of the rack, and a matching chute 136 or guide rail is correspondingly provided on the positioning seat 147. When the rack moves, its slide rail or guide groove 168 will slide within the chute 136 or guide rail of the positioning seat 147, thereby realizing the guiding connection. In addition, in order to reduce friction and wear, auxiliary elements such as lubricants or rolling bearings can be added between the guiding structures.

[0142] Guided by the guiding structure, the rack can maintain a stable linear motion trajectory, thereby improving the accuracy of the cable 110 length adjustment. This is particularly important for application scenarios that require precise control of the cable 110 length. The presence of the guiding structure makes it difficult for the rack to deviate or shake during movement, thereby enhancing the stability and reliability of the entire adjustment mechanism.

[0143] According to an embodiment of the present utility model, the guiding structure includes a guide groove 168 and a guiding block 170; the guide groove 168 is opened in one of the rack and the positioning seat 147; the guiding block 170 is provided on the other of the rack and the positioning seat 147, and the guiding block 170 is guidingly connected to the guide groove 168.

[0144] As Figure 10 shown, in an embodiment of the present utility model, the design of the guiding structure has been further clarified and refined. The guiding structure is composed of a guide groove 168 and a guiding block 170, and this design ensures the stability and accuracy of the rack during movement.

[0145] The guide groove 168 is opened on one of the rack and the positioning seat 147, and the guiding block 170 is provided on the other of the rack and the positioning seat 147, corresponding to the guide groove 168.

[0146] During the assembly process, the guiding block 170 is precisely installed on the rack or the positioning seat 147 and corresponds to the guiding groove 168 on another component. When the rack moves, the guiding block 170 slides within the guiding groove 168, thereby realizing the guiding and constraining of the movement track of the rack.

[0147] The existence of the guiding structure enables the rack to maintain a stable linear movement track during movement, avoiding deviation and shaking. This stable movement mode not only improves the accuracy of the length adjustment of the cable 110, but also enhances the stability and reliability of the entire adjustment mechanism. Through the cooperative action of the guiding groove 168 and the guiding block 170, the rack can maintain an accurate linear movement track during movement, thereby improving the accuracy of the length adjustment of the cable 110.

[0148] According to an embodiment of the present invention, the adjusting member 152 includes an adjusting gear that meshes with the rack for driving, and the adjusting gear is used to be installed on the mounting seat 144 or the base 100 of the lamp. A connecting rod is connected to the adjusting gear, and an adjusting nut 172 is arranged on the connecting rod.

[0149] As Figure 10 shown, in an embodiment of the present invention, the design of the adjusting member 152 is further enriched and improved. The adjusting member 152 mainly includes an adjusting gear that meshes with the rack for driving, as well as a connecting rod and an adjusting nut 172 connected thereto. This design combines the precision of the adjusting gear drive and the flexibility of the connecting rod, providing a convenient and reliable way for the user to adjust the length of the cable 110.

[0150] The adjusting gear is designed to mesh with the rack, and the rack is driven to perform linear movement by the rotation of the adjusting gear. This meshing drive mode has the advantages of high transmission efficiency and accurate transmission ratio, and can ensure the accuracy and stability of the length adjustment of the cable 110.

[0151] The adjusting gear is installed on the mounting seat 144 or the base 100 of the lamp. Such an installation position is not only convenient for the user to operate, but also can ensure the stability of the adjusting gear during the transmission process. At the same time, according to specific design requirements, the adjusting gear can also be connected to the positioning seat 147 or other fixed components.

[0152] One end of the connecting rod is connected to the adjusting gear, and the other end is provided with an adjusting nut 172. This design enables the user to drive the connecting rod and the adjusting gear to rotate by rotating the adjusting nut 172, and further drives the rack to perform linear movement.

[0153] The adjusting nut 172 is arranged on the connecting rod, and the user can achieve the transmission control of the adjusting gear and the rack by rotating the adjusting nut 172. The design of the adjusting nut 172 should take into account the user's usage habits and comfort, ensuring convenient operation and good feel.

[0154] Through the meshing transmission of the adjusting gear and the rack and the cooperation of the connecting rod and the adjusting nut 172, the user can accurately control the adjustment amount of the length of the cable 110. This precise adjustment method helps to meet the lighting requirements in different application scenarios. The stability and reliability of the adjusting gear transmission are fully exerted, making the entire adjusting mechanism not prone to vibration or noise during the transmission process. At the same time, the design of the connecting rod and the adjusting nut 172 also enhances the stability and durability of the mechanism. The user only needs to simply rotate the adjusting nut 172 to achieve the adjustment of the length of the cable 110. This convenient operation method improves the user experience. In addition, the design of the adjusting nut 172 also takes into account the user's feel and comfort, making the operation more relaxed and pleasant.

[0155] According to an embodiment of the present utility model, a pressing member 174 is arranged on the positioning seat 147, and at least part of the pressing member 174 is pressed above the adjusting member 150.

[0156] As Figure 10 shown, in an embodiment of the present utility model, the design of the positioning seat 147 is further enhanced, especially by adding the pressing member 174 to improve the stability and fixing effect of the adjusting member 150. This design ensures that the adjusting member 150 will not loosen or shift due to external forces during the working process, thereby guaranteeing the accuracy and reliability of the cable 110 length adjustment.

[0157] The pressing member 174 is arranged on the positioning seat 147 and is at least partially pressed above the adjusting member 150. This layout enables the pressing member 174 to directly exert a downward pressure on the adjusting member 150, thereby firmly fixing it on the positioning seat 147. The number and distribution of the pressing members 174 can be flexibly adjusted according to the size, shape of the adjusting member 150 and the required fixing force.

[0158] The presence of the pressing member 174 makes the position of the adjusting member 150 on the positioning seat 147 more stable and not prone to looseness or shift due to external forces. This stability guarantees the accuracy and reliability of the cable 110 length adjustment and avoids the adjustment failure or increased error caused by the loosening of the adjusting member 150.

[0159] According to an embodiment of the present utility model, an adjusting bolt 176 is arranged on the pressing member 174, and the adjusting bolt 176 is used to be installed on the mounting seat 144 of the lamp to adjust the distance between the pressing member 174 and the adjusting member 150.

[0160] As Figure 11 shown, an adjusting bolt 176 is added to the pressing member 174, enabling the user to conveniently adjust the distance between the pressing member 174 and the adjusting member 150. This design not only improves the flexibility of adjustment but also ensures that the pressing member 174 can perform precise pressure adjustment according to different situations, thereby further enhancing the accuracy and reliability of the cable 110 length adjustment.

[0161] The adjusting bolt 176 is installed on the pressing member 174, usually located between the pressing member 174 and the mounting base 144 of the lamp. Such a design allows the user to change the relative position between the pressing member 174 and the adjusting member 150 by operating the adjusting bolt 176, thereby adjusting the distance therebetween.

[0162] To ensure that the adjusted pressing member 174 can be stably maintained in the required position, the adjusting bolt 176 should also have a corresponding fixing mechanism. This can be achieved through methods such as nuts and snap fixes to ensure that the pressing member 174 does not move accidentally due to external forces during the adjustment process.

[0163] According to an embodiment of the present utility model, the movable seat 146 includes a seat body 164 and a support block 166; the adjusting wheel 148 is rotatably installed on the seat body 164; the support block 166 is connected to the seat body 164 to support the seat body 164.

[0164] In an embodiment of the present utility model, the seat body 164 is a structure with a certain rigidity and stability, and the adjusting wheel 148 is rotatably installed on the seat body 164 for winding the cable 110.

[0165] The support block 166 is a component connected to the seat body 164 to support the seat body 164. The support block 166 is usually designed as a sturdy and durable structure and has a certain elasticity or buffering performance to ensure that the seat body 164 can remain stable and reduce vibration and noise when subjected to external forces. The support block 166 and the seat body 164 can be connected and fixed by bolts or other means.

[0166] By designing a reasonable structure of the adjusting wheel 148 and the support block 166, the stability and reliability of the cable 110 during winding and unwinding can be ensured, thereby improving the accuracy and precision of the cable 110 length adjustment. The support block 166 provides a stable support for the seat body 164, enabling the seat body 164 to remain stable and reduce vibration and noise when subjected to external forces. This helps to improve the stability and reliability of the entire adjustment mechanism.

[0167] In addition, it should be noted that, as Figure 4As shown, in the above two adjustment methods, two guide wheels 142 are arranged along the length direction of the base 100, and the two guide wheels 142 are respectively placed on the front and rear sides of the adjustment wheel 148. During the winding process of the cable 110, first, a part of it is wound around the inner side of the first guide wheel 142. After the cable 110 passes through the first guide wheel 142, it bypasses the outer side of the adjustment wheel 148, and then the cable 110 passes through the inner side of the second guide wheel 142. By setting it in this way, when the cable 110 extends and retracts, the resistance it receives is smaller, and it is more convenient to realize the lifting control of the lamp body 112.

[0168] An embodiment of the second aspect of the present invention provides a lamp, including the resistance encounter structure or the wire length adjustment mechanism as described above.

[0169] According to the lamp provided by the embodiment of the second aspect of the present invention, by arranging a resistance encounter structure inside the lamp, it can be monitored in real time whether the lamp body 112 encounters an obstacle during the lifting process. Once a blocked situation is detected, the resistance encounter structure will immediately trigger a corresponding reaction mechanism, such as stopping the motor from rotating, so as to avoid the lamp from colliding with the obstacle, effectively protecting the lamp from damage, and at the same time protecting the safety of the surrounding environment. With the addition of the resistance encounter structure, the lamp is safer and more reliable during the automatic lifting process. This not only reduces the potential safety hazards caused by human negligence or misoperation, but also avoids electrical or mechanical failures caused by continuous obstruction, further improving the use safety of the lamp. The resistance encounter structure can effectively prevent the lamp from continuing to operate when blocked, thus avoiding situations such as motor overload and cable 110 breakage that may cause damage to the lamp. This protection mechanism helps to extend the service life of the lamp, reduce maintenance costs, and improve economic benefits.

[0170] According to an embodiment of the present invention, it further includes a mounting base 144 and a lamp body 112. The lamp body 112 is liftably mounted on the mounting base 144 through a cable 110, and the base 100 is mounted on the mounting base 144.

[0171] As Figure 1 shown, the mounting base 144, as the support foundation of the entire lamp, is designed to be stable and easy to install. The mounting base 144 has sufficient strength and stiffness to bear the weight and generated forces of components such as the lamp body 112, the cable 110, and the pulley 108 system.

[0172] The lamp body 112 is the core part of the lighting system and is connected to the mounting base 144 through a cable 110. One end of the cable 110 is connected to the lamp body 112, and the other end bypasses the adjustment wheel 148, the pulley 108, and is finally fixed on the mounting base 144 or other fixed points.

[0173] When the user needs to adjust the height of the lamp body 112, the height of the lamp body 112 can be adjusted through a driving member such as a motor.

[0174] As Figure 12 shown, in the embodiment of the present utility model, a driving member such as the motor mentioned above is provided on the mounting base 144. Taking the motor as an example, a driving gear 178 is connected to the output shaft of the motor. In order to stably hang the lamp body 112, a plurality of bases 100 are evenly spaced along the circumference of the mounting base 144. Taking the number of bases 100 as three as an example, if the mounting base 144 is circular, the interval between the three bases 100 is 120 degrees. Correspondingly, driven gears 180 corresponding to the three bases 100 are provided, and the three driven gears 180 are respectively meshed with the driving gear 178 for transmission.

[0175] One end of the cable 110 is connected to the lamp body 112, and the other end of the cable 110 is wound around the driven gear 180. When the driving gear 178 rotates forward, the three driven gears 180 are synchronously driven to act to tighten the cable 110, and at this time the lamp body 112 rises. When the driving gear 178 rotates reversely, the three driven gears 180 are synchronously driven to act to release the cable 110, and at this time the lamp body 112 descends.

[0176] It can be understood that during the lifting and lowering process of the lamp body 112, the lifting and lowering control of the lamp body 112 can be synchronously achieved through the cables 110 connected to the three bases 100. If the lamp body 112 encounters an obstacle during the descending process, the motor drives the driving gear 178 to stop rotating. When the driving gear 178 stops rotating, the three driven gears 180 are synchronously driven to stop rotating. At this time, the cables 110 connected to the three bases 100 stop synchronously. After the obstacle is removed, the lamp body 112 is controlled again.

[0177] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A wire length adjusting mechanism, characterized in that, Comprising: A base (100) for mounting on a mounting base (144) of a lamp. An adjustable seat (146) is movably mounted on the base (100). An adjusting wheel (148) is provided on the adjustable seat (146). A cable (110) is partially wound around the adjusting wheel (148). A positioning seat (147) for mounting on a mounting base (144) of a lamp. An adjusting member (150) is movably mounted on the positioning seat (147) and connected to the adjustable seat (146). The adjusting member (150) and the positioning seat (147) are adapted to be connected by a guiding structure for guiding. An adjusting part (152) is in transmission connection with the adjusting member (150) to drive the adjusting member (150) to act.

2. The wire length adjusting mechanism according to claim 1, characterized in that, The adjusting member (150) includes a rack. One end of the rack is connected to the adjustable seat (146). The rack and the positioning seat (147) are adapted to be connected by a guiding structure for guiding.

3. The wire length adjusting mechanism according to claim 2, characterized in that The guiding structure includes: A guiding groove (168) formed in one of the rack and the positioning seat (147). A guiding block (170) provided on the other of the rack and the positioning seat (147). The guiding block (170) is guidingly connected to the guiding groove (168).

4. The wire length adjusting mechanism according to claim 2, characterized in that, The adjusting part (152) includes an adjusting gear meshing with the rack. The adjusting gear is for mounting on a mounting base (144) of a lamp or the base (100). A connecting rod is connected to the adjusting gear. An adjusting nut (172) is provided on the connecting rod.

5. The wire length adjusting mechanism according to claim 1, characterized in that A pressing member (174) is provided on the positioning seat (147). At least part of the pressing member (174) presses above the adjusting member (150).

6. The wire length adjusting mechanism according to claim 5, characterized in that, An adjusting bolt (176) is provided on the pressing member (174). The adjusting bolt (176) is for mounting on a mounting base (144) of a lamp to adjust the distance between the pressing member (174) and the adjusting member (150).

7. The wire length adjusting mechanism according to any one of claims 1 to 6, characterized in that, The adjustable seat (146) includes: A seat body (164). The adjusting wheel (148) is rotatably mounted on the seat body (164). A support block (166) connected to the seat body (164) to support the seat body (164).

8. The wire length adjusting mechanism according to any one of claims 1 to 6, characterized in that, Along the length direction of the base (100), fixing seats (140) are provided on both sides of the adjustable seat (146). Guide wheels (142) are provided on the fixing seats (140). The cable (110) is partially wound around the first side of the guide wheel (142) and the second side of the adjusting wheel (148). Wherein, the first side of the guide wheel (142) and the second side of the adjusting wheel (148) are in opposite directions.

9. A lighting fixture, characterized in that, Comprising a mounting base (144) and a lamp body (112). The mounting base (144) is provided with a wire length adjusting mechanism as described in any one of claims 1 to 8. The cable (110) is connected between the mounting base (144) and the lamp body (112).

10. The luminaire according to claim 9, characterized in that, The positioning seat (147) and the mounting base (144) are adapted to be positioned by a positioning structure.

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