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, a movable seat is movably mounted on the base, an adjusting wheel is arranged on the movable seat, and the cable part is wound on the adjusting wheel; the adjusting piece is mounted on the base and is in transmission connection with the movable seat; and the adjusting part is in transmission connection with the adjusting part to drive the adjusting part to act. The length of the cable can be flexibly adjusted through the cable length adjusting mechanism; therefore, the cable can be simply and quickly wound and unwound, and lighting or other requirements in different scenes can be met; the adjusting process can be completed only by slightly rotating the adjusting piece, so that the use convenience and efficiency are greatly improved; the phenomenon that the cable is broken or falls off due to the fact that the cable is stretched or loosened excessively is avoided, and the service life of the cable is prolonged.

Description

Technical Field

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

[0002] In the related art, liftable lamps can flexibly adjust their height based on the user's actual needs. Generally, a mounting base is installed on the roof, and the lamp body is connected to the mounting base via multiple cables for hoisting. During the raising and lowering of the lamp, inconsistent cable retraction and extension speeds can cause the lamp body to tilt, causing inconvenience to the user. Furthermore, when the user needs to adjust the lamp's illumination angle, the adjustment methods used in the related art are not conducive to flexible adjustment. Utility Model Content

[0003] The embodiment of the present utility model provides a wire length adjustment mechanism to solve the defect in the related art that the lamp body is deflected and cannot be adjusted during the lifting and lowering process.

[0004] The embodiment of the present utility model further provides a lamp.

[0005] A first embodiment of the present invention provides a wire length adjustment mechanism, comprising:

[0006] A base, wherein a movable seat is movably mounted on the base, an adjusting wheel is provided on the movable seat, and the cable portion is wound around the adjusting wheel;

[0007] An adjusting member is mounted on the base and is in transmission connection with the movable seat;

[0008] The regulating member is in transmission connection with the adjusting member to drive the adjusting member to move.

[0009] According to one embodiment of the present utility model, the adjusting member includes a screw, which is threadedly connected to the base, and a connecting head is provided at the first end of the screw, which is rotatably connected to the movable seat, and the screw is used to drive the movable seat to move along the axial direction of the screw.

[0010] According to an embodiment of the present invention, the adjusting member includes a turbine and a worm that mesh with each other, the turbine and the worm are rotatably mounted on the base, and the turbine is drivingly connected to the screw.

[0011] According to an embodiment of the present invention, a mounting member is provided on the base, and the turbine is rotatably mounted on the mounting member.

[0012] According to an embodiment of the present invention, a fixing buckle is provided on the base, and the worm is rotatably mounted on the fixing buckle.

[0013] According to an embodiment of the present invention, the second end limiting portion of the screw has a limiting portion, and the limiting portion is used to limit the extreme positions of the screw and the turbine.

[0014] According to one embodiment of the present invention, the movable seat comprises:

[0015] a base body, the adjusting wheel being rotatably mounted on the base body;

[0016] The supporting block is connected to the base body to support the base body.

[0017] According to an embodiment of the present invention, a recessed portion is formed on the adjusting wheel along the outer circumferential surface of the adjusting wheel, and the cable portion is wound around the recessed portion.

[0018] According to one embodiment of the present invention, fixed seats are provided on both sides of the movable seat along the length direction of the base, guide wheels are provided on the fixed seats, and the cable portion is wound around the first side of the guide wheel and the second side of the adjusting wheel, wherein the first side of the guide wheel and the second side of the adjusting wheel are in opposite directions.

[0019] A second embodiment of the present invention provides a lamp, comprising a mounting base and a lamp body, wherein the mounting base is provided with the above-mentioned cable length adjustment mechanism, and the cable is connected between the mounting base and the lamp body.

[0020] According to the first embodiment of the present invention, the cable length adjustment mechanism provides an adjustment member that is driven by operating the adjustment member, thereby driving the movement of the movable seat on the base. Because the movable seat is provided with an adjustment wheel on which the cable is partially wound, movement of the movable seat changes the length of the cable wound on the adjustment wheel, thereby enabling flexible adjustment of the cable length. This design makes cable retraction and extension simple and quick, meeting lighting and other needs in different scenarios. Traditional cable adjustment methods often require manual pulling of the cable or adjustment of the fixing points, which is cumbersome and imprecise. The cable length adjustment mechanism of the present invention, however, achieves automatic adjustment of the cable length through mechanical transmission. The user only needs to gently turn the adjustment member to complete the adjustment process, greatly improving the convenience and efficiency of use. The design of the adjustment wheel helps reduce friction and resistance of the cable during the adjustment process, making cable retraction and extension smoother. Furthermore, the connection structure between the movable seat and the base is also carefully designed to ensure stability and reliability during the adjustment process. This design avoids cable breakage or detachment caused by excessive stretching or relaxation, thereby extending the service life of the cable. The cable length adjustment mechanism of this utility model has a compact structure and reasonable design, and the components are tightly connected and work together smoothly. At the same time, it also provides a simple installation method, allowing users to easily install it in the designated location as needed without complicated installation steps and tools.

[0021] According to the lamp provided in the embodiment of the second aspect of the present invention, the lamp of the present invention can conveniently adjust the height and angle of the lamp body to adapt to different lighting needs and scenes through the integrated wire length adjustment mechanism. Users can easily complete the process of adjusting the height and illumination angle of the lamp body without the help of 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 adjustment mechanism fully considers the stability and reliability of the cable during the adjustment process. By reducing friction, providing a smooth winding path, and ensuring close fit between the components, the stability and reliability of the lamp during the adjustment process are ensured. The lamp design has strong adaptability and can be used for cables of different lengths, diameters and materials, as well as lamp bodies of different shapes and weights. At the same time, users can also choose wire length adjustment mechanisms of different specifications and models according to actual needs to meet specific usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic three-dimensional diagram of the lamp provided by the utility model.

[0024] Figure 2 This is a schematic structural diagram of the lamp provided by the utility model with the upper cover hidden.

[0025] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0026] Figure 4 This is a partial exploded view of the base, bracket, and pulley.

[0027] Figure 5 It is a schematic three-dimensional diagram of the bracket provided by the utility model.

[0028] Figure 6 It is a schematic three-dimensional diagram of a wire length adjustment mechanism provided by the present invention installed on a mounting base.

[0029] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle.

[0030] Figure 8It is a schematic three-dimensional diagram of a wire length adjustment mechanism provided by the utility model.

[0031] Figure 9 This is a schematic three-dimensional diagram of another wire length adjustment mechanism provided by the present invention installed on a mounting base at one angle.

[0032] Figure 10 yes Figure 9 A partial enlarged view of point C in the middle.

[0033] Figure 11 This is a schematic three-dimensional diagram showing another wire length adjustment mechanism provided by the present invention installed on a mounting base from another angle.

[0034] Figure 12 It is a schematic structural diagram of the meshing of the driving gear and the driven gear provided by the utility model.

[0035] Reference numerals:

[0036] 100, base; 102, contact member; 104, deformation member; 106, bracket; 108, pulley; 110, cable; 112, lamp body; 114, bottom plate; 116, pressure block; 118, side plate; 120, mounting groove; 122, rotating shaft; 124, mounting hole; 126, rotating hole; 128, transition section; 130, first wheel body; 132, second wheel body; 134, winding section; 136, slide groove; 138, slider; 140, fixing 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, fixing 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 DESCRIPTION

[0037] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] like Figures 1 to 12As shown, the first embodiment of the present invention provides an obstruction structure, including a base 100 and a bracket 106; a contact member 102 and a deformable member 104 are provided on the base 100; the bracket 106 is movably mounted on the base 100, and a pulley 108 is provided on the bracket 106, and the cable 110 is suitable for being 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 encounters no obstruction, the cable 110 is suitable for pressing the pulley 108 to electrically connect the deformable member 104 to the contact member 102 or to electrically conduct the contact member 102. When the lamp body 112 encounters obstruction, the deformable member 104 is suitable for being deformed to separate from the contact member 102, and the deformable member 104 is electrically disconnected from the contact member 102 or to electrically disconnect the contact member 102.

[0039] According to the obstruction structure provided in the first embodiment of the present invention, the combination of the contact member 102 and the deformable member 104 enables real-time monitoring of the movement state of the lamp body 112. When the lamp body 112 is operating normally, the cable 110 compresses the pulley 108, thereby causing the deformable member 104 to maintain an electrical connection with the contact member 102 or causing the contact member 102 to automatically become electrically conductive due to the force. Once the lamp body 112 encounters an obstacle and becomes obstructed during movement, the pressure exerted by the cable 110 on the pulley 108 decreases, causing the pressure on the pulley 108 to be released. The deformable member 104 then deforms and separates from the contact member 102. At this point, the deformable member 104 is electrically disconnected from the contact member 102, or the contact member 102 automatically becomes electrically disconnected due to the reduction in external force. This automatic detection mechanism can quickly respond to obstructions to the lamp body 112 without requiring manual intervention. In intelligent lighting systems, especially for lamps that require automatic adjustment of the illumination height, the introduction of an obstruction structure effectively prevents mechanical damage or electrical failure caused by continuous obstruction. By promptly detecting and responding to obstructions, safety hazards such as motor overload and cable 110 breakage can be prevented, significantly improving the safety and reliability of the system. This obstruction-resistant structure, comprised of simple components such as a base 100, bracket 106, pulley 108, cable 110, contact member 102, and deformable member 104, offers a compact design and easy installation. Furthermore, all components are standard or readily available, reducing maintenance costs and complexity while increasing the maintainability and service life of the equipment.

[0040] Please continue to see Figures 1 to 12 The first embodiment of the present invention provides a resistance structure, which is intended to improve the safety and reliability of the lamp during the lifting process. The resistance structure mainly consists of a base 100, a bracket 106, a contact member 102, a deformable member 104 and a pulley 108.

[0041] The base 100 is the foundation of the entire resistance detection structure and is securely mounted on the lamp's mounting base 144, which can be installed on a roof, suspended ceiling, or other location. The base 100 is equipped with a contact member 102 and a deformable member 104, which are the core of the resistance detection mechanism.

[0042] The contact member 102 is a conductive element fixed to the base 100. The primary function of the contact member 102 is to form an electrical connection with the deformable member 104, thereby enabling the start and stop of the lifting action. It will be understood that when the contact member 102 contacts the deformable member 104, the circuit is connected, and the lifting action begins. When the contact member 102 separates from the deformable member 104, the circuit is disconnected, and the lifting action stops. In the embodiment of the present invention, the contact member 102 can be a component such as a PCB board or a microswitch, and the deformable member 104 can be a pot piece, an elastic contact piece, or the like.

[0043] The deformable member 104 is a component that deforms under external force and also exhibits electrical conductivity. In the embodiments of the present invention, a metal pot is used as the deformable member 104. In an unobstructed state, the deformable member 104 (i.e., the metal pot) maintains contact with the contact member 102, forming an electrical connection. However, when subjected to external force (such as slack in the cable 110 caused by resistance in the lamp body 112), the deformable member 104 deforms, separating from the contact member 102 and severing the electrical connection.

[0044] The bracket 106 is movably mounted on the base 100 to support and fix the pulley 108. The design of the bracket 106 allows it to move freely within a certain range to adapt to the movement requirements of the pulley 108. The pulley 108 is mounted on the bracket 106, and the cable 110 is partially wound around the pulley 108. The design of the pulley 108 is intended to reduce the friction and wear of the cable 110 during movement, while ensuring that the cable 110 can smoothly transmit power and signals. When the lamp body 112 encounters no obstruction, the cable 110 will press the pulley 108 so that the deformable member 104 maintains contact with the contact member 102. When the lamp body 112 encounters obstruction, the cable 110 relaxes, and the pressure exerted by the cable 110 on the pulley 108 disappears. At this time, the deformable member 104 undergoes a certain deformation and separates from the contact member 102, thereby disconnecting the electrical connection, and the lifting action stops immediately.

[0045] In summary, by monitoring the changes in the electrical connection between contact 102 and deformable member 104, the obstruction mechanism can monitor in real time whether the lamp body 112, or the entire lamp, encounters an obstacle. Upon detecting an obstruction, deformable member 104 immediately deforms, severing the electrical connection with contact 102 and triggering the corresponding protective mechanism. The introduction of the obstruction mechanism effectively prevents collisions and damage that could result from continued operation of the lamp despite an obstruction. This not only protects the lamp itself but also prevents potential safety hazards caused by collisions, thereby enhancing safety during use.

[0046] According to an embodiment of the present invention, the bracket 106 includes a bottom plate 114 . A pressing block 116 is provided on a side of the bottom plate 114 facing the contact member 102 . When the lamp body 112 encounters no obstruction, the pressing block 116 is adapted to press the deformable member 104 .

[0047] like Figure 3 and Figure 5 As shown, in a specific embodiment of the present invention, the design of the bracket 106 is further optimized and refined.

[0048] Specifically, the bracket 106 is not only movably mounted on the base 100, but also 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 resistance structure more accurate and reliable.

[0049] The bottom plate 114 is one of the main components of the bracket 106 and maintains a certain distance from the base 100. The existence of the bottom plate 114 provides a stable installation position for the pressing block 116, ensuring the stability and consistency of the pressing block 116 when pressing the deformable member 104.

[0050] 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 encounters no obstruction. The pressing block 116 is typically made of a material with a certain degree of hardness and wear resistance, such as hard plastic, to ensure that it is not easily damaged or deformed during long-term use.

[0051] When the lamp body 112 encounters no obstruction, the cable 110 partially winds around the pulley 108, exerting a certain amount of compressive force on the pulley 108. This compressive force is transmitted through the pulley 108 to the bracket 106, and then acts on the pressure block 116. When subjected to downward pressure, the pressure block 116 presses against the deformable member 104, pressing it tightly. At this point, the deformable member 104 maintains close contact with the contact member 102, forming an electrical connection.

[0052] Once the lamp body 112 encounters an obstacle and is blocked during the lifting process, the compressive force applied by the cable 110 on the pulley 108 decreases or disappears, and the compressive force on the pressure block 116 also decreases or disappears. At this time, the pressure block 116 separates 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, thereby triggering the obstruction protection mechanism.

[0053] By providing a base plate 114 and a pressure block 116 on the bracket 106, this embodiment further improves the detection accuracy of the obstruction structure. The pressure block 116 ensures close contact and stable electrical connection 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 pressure block 116 accurately triggers the protection mechanism. The design of the pressure block 116 and base plate 114 makes the obstruction structure more stable and reliable during long-term use. They can withstand certain external forces and wear without affecting the accuracy and sensitivity of the detection mechanism.

[0054] According to an embodiment of the present invention, the bracket 106 further includes a side plate 118 connected to the bottom plate 114 . A mounting slot 120 is defined on the side plate 118 . A rotating shaft 122 is provided on the pulley 108 . The rotating shaft 122 is detachably mounted in the mounting slot 120 .

[0055] like Figure 5 As shown, in one embodiment of the present invention, in addition to the aforementioned bottom plate 114 and pressure block 116, the bracket 106 further includes a side plate 118 connected to the bottom plate 114, and a mounting slot 120 formed on the side plate 118. This design facilitates the installation and removal of the pulley 108 and also enhances the overall stability of the bracket 106.

[0056] Side panels 118 are vertically connected to base panel 114, forming the main structure of bracket 106. The design of side panels 118 must consider both the strength of the connection with base panel 114 and the installation requirements of pulley 108. Mounting slots 120 defined in side panels 118 are specifically designed to accommodate shaft 122 of pulley 108. The shape and dimensions of mounting slots 120 match those of shaft 122, ensuring a secure fit.

[0057] A rotating shaft 122 is provided on the pulley 108. In this embodiment, the rotating shaft 122 and the mounting groove 120 are installed in a detachable manner. By inserting the rotating shaft 122 into the mounting groove 120 and fixing it to the bracket 106, a stable connection between the pulley 108 and the bracket 106 is achieved.

[0058] Since the shaft 122 and the mounting slot 120 are detachable, when the pulley 108 needs to be replaced or maintained, the user can easily remove the shaft 122 from the mounting slot 120 and then install a new pulley 108. This design not only simplifies the maintenance process, but also reduces maintenance costs.

[0059] By providing mounting slots 120 on side panels 118 and employing a removable shaft 122, the pulley 108 can be significantly easier to install and remove. Users can quickly replace or maintain the pulley 108 without requiring complex procedures or tools. This embodiment also offers a degree of flexibility. Users can select the appropriate pulley 108 and shaft 122 specifications for installation and replacement based on their specific needs, satisfying the demands of various scenarios.

[0060] According to one embodiment of the present invention, the mounting groove 120 includes a mounting hole 124 and a rotation hole 126 that are connected to each other. The edge of the mounting hole 124 is connected to the edge of the side plate 118. A transition section 128 is formed between the mounting 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 falling out of the rotation hole 126.

[0061] like Figure 5 As shown, in one embodiment of the present invention, the design of the mounting slot 120 on the side panel 118 has been further optimized. Mounting slot 120 not only provides mounting space for the pulley 108's rotating shaft 122, but also ensures the stability and safety of the rotating shaft 122 through a specific structural design. Specifically, mounting slot 120 comprises a connecting mounting hole 124 and a rotating hole 126, connected by a transition section 128. This creates a sophisticated structure that facilitates installation while preventing the rotating shaft 122 from dislodging.

[0062] Mounting hole 124 is part of mounting slot 120, with its edge communicating with the edge of side panel 118. This design allows the user to easily insert shaft 122 into mounting slot 120 from the side of side panel 118. The size and shape of mounting hole 124 match the corresponding portion of shaft 122, ensuring smooth insertion and initial positioning of shaft 122.

[0063] Rotation hole 126 is the main portion of mounting slot 120 and is used to accommodate most of the length of rotating shaft 122. When rotating shaft 122 is fully inserted into mounting slot 120 and passes through mounting hole 124, it enters rotation hole 126 and rotates there. The inner diameter of rotation hole 126 can be slightly larger than the outer diameter of rotating shaft 122 to allow pulley 108 to rotate more smoothly.

[0064] Transition section 128, located between mounting hole 124 and rotation hole 126, forms a gradually changing area. Its primary function is to prevent shaft 122 from accidentally dislodging from rotation hole 126 after installation. The design of transition section 128 allows shaft 122 to gradually adapt to the changing hole diameter during insertion and maintains a certain degree of restraint once it reaches rotation hole 126. Even under external force, shaft 122 is unlikely to be directly dislodged from rotation hole 126, thus ensuring a secure and stable installation.

[0065] When installing shaft 122, the user first aligns shaft 122 with mounting hole 124 and gently pushes it in. As shaft 122 pushes deeper, it gradually passes through transition section 128 and enters rotation hole 126. During this process, the user may feel some resistance due to the constricting design of transition section 128. However, once shaft 122 is fully inserted into rotation hole 126 and rotates freely, installation is successful.

[0066] By introducing the transition section 128, the mounting groove 120 can more effectively prevent the shaft 122 from falling out of the rotation hole 126. Even under external factors such as strong winds, vibrations, or accidental collisions, the shaft 122 can remain firmly installed, thereby ensuring the normal operation of the pulley 108 and the smooth winding of the cable 110.

[0067] According to an embodiment of the present invention, the pulley 108 includes a first wheel body 130 and a second wheel body 132 disposed opposite to each other. 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 .

[0068] like Figure 3 As shown, in one embodiment of the present invention, the design of the pulley 108 is further optimized to improve the efficiency and stability of its winding of the cable 110. The pulley 108 is composed of a first wheel body 130 and a second wheel body 132 arranged opposite to each other, forming a key winding section 134 between the first wheel body 130 and the second wheel body 132. The cable 110 is wound on this winding section 134 to achieve smooth movement and adjustment.

[0069] Pulley 108 is formed with two opposing wheels: a first wheel 130 and a second wheel 132. These wheels have the same diameter and shape to ensure they can be installed parallel and opposite each other. A certain gap is maintained between first wheel 130 and second wheel 132. The size of this gap is determined by the diameter of cable 110 and the desired winding effect.

[0070] The gap between the first wheel 130 and the second wheel 132 forms a winding section 134, which is a critical area for winding the cable 110. The cable 110 is guided and fixed on the winding section 134, moving smoothly with the rotation of the pulley 108. The design of the winding section 134 must take into account factors such as the friction resistance, bending radius, and long-term wear resistance of the cable 110 to ensure that the cable 110 is not excessively worn or damaged during the winding process.

[0071] By properly designing the winding section 134, the pulley 108 can more effectively guide the movement of the cable 110. This not only reduces frictional resistance during cable 110 movement, but also improves the winding speed and stability of the cable 110, thereby enhancing the overall operating efficiency of the device. The relative arrangement of the first and second wheel bodies 130, 132, and the design of the winding section 134 enable the pulley 108 to maintain a stable posture during rotation. This helps reduce vibration and deviation of the cable 110 during winding, thereby improving the overall stability of the device.

[0072] According to an embodiment of the present invention, the diameters of the first wheel body 130 and the second wheel body 132 gradually decrease from the rotating shaft 122 toward the winding section 134 .

[0073] like Figure 3 As shown, in one embodiment of the present invention, the design of pulley 108 has been further refined. Specifically, the diameters of first wheel 130 and second wheel 132 gradually decrease toward winding section 134. This design not only improves the smoothness of cable 110 winding, but also enhances the overall performance and stability of pulley 108.

[0074] The first wheel 130 and the second wheel 132 are structurally optimized; their diameters are not identical, but gradually decrease from the rotation axis 122 toward the winding section 134. This gradual diameter change facilitates a smoother transition of the cable 110 during winding, allowing the cable 110 to be concentrated on the winding section 134 between the first wheel 130 and the second wheel 132.

[0075] As the diameter gradually decreases, the guiding effect of the first and second wheels 130, 132 on the cable 110 becomes more pronounced. The path of the cable 110 along the winding section 134 is more precisely controlled, preventing problems such as tangling and tangling caused by an unstable path. This design improves the efficiency and stability of the cable 110's movement, ensuring the normal operation of the device.

[0076] According to an embodiment of the present invention, a sliding groove 136 is defined on the base 100 , and a slider 138 is provided on the bracket 106 . The slider 138 is slidably connected to the sliding groove 136 .

[0077] like Figure 3 and Figure 5 As shown, in another embodiment of the present invention, the installation and adjustment of the pulley 108 are further optimized. Specifically, a slide groove 136 is designed on the base 100, and a slider 138 is equipped on the bracket 106 to match the slide groove 136. This design allows the bracket 106 to slide along the slide groove 136 on the base 100, thereby achieving flexible adjustment of the position of the pulley 108.

[0078] The base 100 serves as the support structure for the pulley 108 system. A precisely machined groove 136 is formed on the side panels 118 of the base 100. The shape, size, and position of the groove 136 are designed based on the specific requirements of the pulley 108 system to ensure that the bracket 106 slides smoothly and stably. The groove 136 is typically constructed of wear-resistant and corrosion-resistant materials to extend its service life.

[0079] The bracket 106 is specially provided with a slider 138, which has a shape and size that matches the slide groove 136 and can be tightly embedded in the slide groove 136 and slide along its track. The slider 138 is usually made of a material with a low friction coefficient to reduce resistance during the sliding process.

[0080] When the slider 138 is inserted into the groove 136 of the base 100, a sliding connection mechanism is formed, which allows the bracket 106 to slide vertically within a certain range. Consequently, when the cable 110 exerts a certain pressure on the pulley 108, the slider 138 can slide downward along the groove 136. When the pressure exerted by the cable 110 on the pulley 108 decreases or disappears, the slider 138 can slide upward along the groove 136 due to the deformation of the deformable member 104. Thus, during the sliding movement, the movement of the pulley 108 can be guided by the cooperation between the slider 138 and the groove 136.

[0081] According to an embodiment of the present invention, a fixing seat 140 is provided on the base 100 , a guide wheel 142 is provided on the fixing seat 140 , and a portion of the cable 110 is wound around the guide wheel 142 .

[0082] like Figure 3 As shown, in one embodiment of the present invention, to further enhance the stability and smoothness of the cable 110 during adjustment, a fixing base 140 is provided on the base 100 along its length, and a guide wheel 142 is mounted on the fixing base 140. This design allows the cable 110 to move more smoothly during adjustment, reducing resistance caused by twisting or entanglement of the cable 110.

[0083] The guide wheel 142 is rotatably mounted on the fixed seat 140 and is used to guide the moving direction of the cable 110. The cable 110 not only needs to be wound around the adjusting wheel 148, but also needs to be guided by the guide wheel 142. When the cable 110 is wound around the adjusting wheel 148, 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 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.

[0084] In the embodiment of the present invention, in order to adjust the extension length of the cable 110, a cable length adjustment mechanism is further provided on the mounting seat 144. The cable length adjustment mechanism can be adjusted in at least two different ways as follows.

[0085] Adjustment method 1:

[0086] In this adjustment method, the cable length adjustment mechanism includes a base 100, an adjusting 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 portion of the cable 110 is wound around the adjusting wheel 148; the adjusting member 150 is mounted on the base 100 and is transmission-connected to the movable seat 146; the adjusting member 152 is transmission-connected to the adjusting member 150 to drive the adjusting member 150 to move.

[0087] The cable length adjustment mechanism drives the adjustment member 150 by operating the adjustment member 152, thereby driving the movable seat 146 to move on the base 100. Since the movable seat 146 is provided with an adjustment wheel 148, and the cable 110 is partially wound on the adjustment wheel 148, the movement of the movable seat 146 will change the winding length of the cable 110 on the adjustment wheel 148, thereby achieving flexible adjustment of the length of the cable 110. This design makes the retraction and extension of the cable 110 simple and quick, meeting the lighting or other needs in different scenarios. Traditional cable 110 adjustment methods often require manual pulling of the cable 110 or adjustment of the fixed point, which is cumbersome and not precise enough. The cable length adjustment mechanism of the present invention realizes automatic adjustment of the length of the cable 110 through mechanical transmission. The user only needs to gently turn the adjustment member 152 to complete the adjustment process, greatly improving the convenience and efficiency of use. The design of the adjustment wheel 148 helps to reduce the friction and resistance of the cable 110 during the adjustment process, making the retraction and extension of the cable 110 smoother. The connection structure between the movable seat 146 and the base 100 has also been carefully designed to ensure stability and reliability during the adjustment process. This design prevents breakage or detachment of the cable 110 due to excessive stretching or relaxation, thereby extending the service life of the cable 110. The cable length adjustment mechanism of this utility model has a compact structure and a rational design, with each component tightly connected and working together seamlessly. It also provides a simple installation method, allowing users to easily install it in the desired location without the need for complex installation steps or tools.

[0088] Please continue to see Figures 6 to 8 The base 100 serves as the foundational support for the entire cable length adjustment mechanism. It is designed to be stable and have a certain load-bearing capacity. It provides a fixed platform for mounting and adjusting components such as the adjustment member 150 and the movable seat 146, ensuring the stability of the entire mechanism during adjustment.

[0089] The movable seat 146 is movably mounted on the base 100 . This design enables the movable seat 146 to freely move along a specific direction on the base 100 , thereby changing the distance between the adjusting wheel 148 provided thereon and the base 100 .

[0090] The adjusting wheel 148 is mounted on the movable seat 146 and is the main component for winding the cable 110. The cable 110 is partially wound on 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.

[0091] Adjustment member 150 is mounted on base 100 and is in transmission connection with movable seat 146. This transmission connection can be achieved through mechanical transmission methods such as gears, racks, connecting rods, and screw nuts. The main function of adjustment member 150 is to transmit the driving force from adjustment member 152 to movable seat 146, driving movable seat 146 to move relative to base 100, thereby driving adjustment wheel 148 to move relative to base 100, thereby adjusting the length of cable 110.

[0092] Adjustment member 152 is the part that the user directly operates. It is in transmission connection with adjustment member 150 to drive its movement. Adjustment member 152 can be designed in various forms, such as a knob, handle, or lever. The user rotates, pushes, pulls, or presses adjustment member 152 to generate a corresponding driving force, which is transmitted to adjustment member 150.

[0093] By operating the adjustment member 152, the user can conveniently actuate the adjustment member 150, thereby driving the movable seat 146 to move relative to the base 100. Because the cable 110 is partially wound around the adjustment wheel 148, movement of the movable seat 146 changes the length of the cable 110 wound around the adjustment wheel 148, thereby enabling flexible adjustment of the length of the cable 110. This design makes the retraction and deployment of the cable 110 simple and quick, meeting the needs of use in different scenarios.

[0094] According to an embodiment of the present invention, the adjusting member 150 includes a screw, which is threadedly connected to the base 100 . A connector is provided at a first end of the screw, which is rotatably connected to the movable seat 146 .

[0095] like Figure 7 As shown, in one embodiment of the present invention, the design of the adjustment member 150 has been further refined and optimized. Specifically, the adjustment member 150 uses a screw, a common mechanical element, and through its unique structure and working principle, it can achieve precise control of the position of the movable seat 146, thereby adjusting the length of the cable 110.

[0096] The screw, the core component of the adjustment member 150, is designed as a cylindrical body with external threads. These threads mate with the internal threads on the base 100, enabling the screw to rotate and move axially along the base 100. The screw is typically made of a metal with high strength and wear resistance to ensure long-term stability and reliability.

[0097] The first end of the screw is equipped with a connector, which is the key component for connecting to the movable seat 146. The connector is typically designed with some form of rotating connection structure (such as a bearing, pin, etc.) to ensure that it can rotate freely relative to the movable seat 146 while also transmitting the axial force of the screw. This design allows the user to smoothly drive the movable seat 146 relative to the base 100 when rotating the screw without encountering additional frictional resistance.

[0098] 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:

[0099] Rotating the screw: The user holds the screw at an appropriate location (such as the other end of the screw or a dedicated rotating handle) and applies a rotating force. Due to the threaded connection between the screw and the base 100, the rotating force is converted into an axial force of the screw, pushing the screw to move along the axial direction of the base 100.

[0100] Driving the movable seat 146: As the screw moves, the connector at its first end pushes the movable seat 146 to move relative to the base 100. Due to the rotational 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.

[0101] 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.

[0102] The threaded connection between the screw and the base 100, and the rotational connection between the connector and the movable seat 146, enable the user to precisely control the position of the movable seat 146 when rotating the screw, thereby achieving precise adjustment of the length of the cable 110. The rotational connection design of the connector reduces the frictional resistance of the screw during rotation, allowing the user to experience a smoother operation 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 servicing work.

[0103] According to one embodiment of the present invention, the adjusting member 152 includes a turbine 154 and a worm 156 that are meshed 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 transmission 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.

[0104] 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 indirectly drive the screw, thereby adjusting the length of the cable 110. The following is a detailed description of the technical solution:

[0105] The inner teeth of the worm gear 154 mesh with the helical teeth of the worm gear 156, which can transmit the rotational power of the worm gear 156 and convert it into its own rotational motion. The worm gear 154 is rotatably mounted in a mounting member 158 on the base 100 to ensure that it can rotate smoothly without generating excessive friction resistance.

[0106] Mounting member 158 is a component mounted on base 100 and used to secure turbine 154 and ensure smooth rotation. Mounting member 158 is typically designed to have a certain degree of rigidity and stability to withstand the forces and torques generated by turbine 154 during rotation. Mounting member 158 is typically connected to turbine 154 via a rotating connection structure, such as a bearing, to reduce friction and improve rotational efficiency.

[0107] The helical teeth of worm 156 fit tightly with the internal teeth of worm gear 154, and rotating worm 156 drives worm gear 154. Worm 156 is also rotatably mounted on base 100, but is specifically mounted via retaining clip 160. Retaining clip 160 provides a stable support point for worm 156 and allows it to rotate freely about its axis.

[0108] 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:

[0109] Rotating the worm 156: The user holds the appropriate position of the worm 156 (such as one end of the worm 156 or a dedicated rotating handle) and applies a rotating force. Due to the meshing relationship between the worm 156 and the worm gear 154, the rotating force is transmitted to the worm gear 154 and drives it to rotate.

[0110] Drive the turbine 154: As the worm 156 rotates, the turbine 154 is subjected to the meshing force and begins to rotate. The rotation of the turbine 154 is transmitted to the screw, which drives the screw to move along the axial direction of the base 100.

[0111] 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 length of the cable 110 wound on the adjusting wheel 148. In this way, the user can flexibly adjust the length of the cable 110 by rotating the worm 156.

[0112] The meshing transmission between worm gear 154 and worm gear 156 provides a large transmission ratio and high transmission efficiency, ensuring smooth movement of the screw when the user rotates worm gear 156, thereby enabling precise adjustment of the length of cable 110. The rotatable mounting of worm gear 154 and worm gear 156, along with the rational design of the transmission mechanism, ensures a stable and reliable adjustment process, reducing the risk of failure and damage due to vibration or looseness.

[0113] 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 limit the extreme positions of the screw and the turbine 154 .

[0114] like Figure 7 As shown, in one embodiment of the present invention, the design of the screw is further optimized, specifically by adding a stopper 162 at its second end. This design is intended to ensure that the relative position between the screw and the turbine 154 is precisely controlled during the adjustment process, preventing it from exceeding the predetermined limit position, thereby protecting the stability and safety of the entire adjustment mechanism.

[0115] A limit portion 162 is designed at the second end of the screw (i.e., the end away from the turbine 154). The limit portion 162 can be a protruding ring, a stopper, or other form of limiting structure with a diameter or size larger than the main part of the screw to limit the extreme position of the screw during movement.

[0116] The primary function of stopper 162 is to define the screw's ultimate position during movement. When the screw reaches a predetermined position, stopper 162 contacts turbine 154, preventing further movement. This ensures that the relative position of the screw and turbine 154 does not exceed the designed range, preventing damage or malfunction caused by excessive movement.

[0117] By limiting the extreme position of the screw, the limiting portion 162 effectively prevents damage or failure of the mechanism due to excessive movement, thereby ensuring the stability and safety of the entire adjustment mechanism.

[0118] 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 mounted on the seat body 164 ; and the support block 166 is connected to the seat body 164 to support the seat body 164 .

[0119] like Figure 8 As shown, in one embodiment of the present invention, the base 164 is a structure with certain rigidity and stability, and the adjusting wheel 148 is rotatably mounted on the base 164 for winding the cable 110 .

[0120] Support block 166 is a component connected to base 164 to support it. Support block 166 is typically designed to be sturdy and durable, with a certain degree of elasticity or cushioning properties to ensure that base 164 remains stable and reduces vibration and noise when subjected to external forces. Support block 166 and base 164 can be connected and fixed by bolts or other means.

[0121] The rationally designed structure of adjustment wheel 148 and support block 166 ensures the stability and reliability of cable 110 during winding and unwinding, thereby improving the precision and accuracy of cable 110 length adjustment. Support block 166 provides stable support for base 164, ensuring stability and reducing vibration and noise when subjected to external forces. This helps improve the stability and reliability of the entire adjustment mechanism.

[0122] According to one embodiment of the present invention, a recessed portion is formed on the adjusting wheel 148 along the outer circumferential surface of the adjusting wheel 148 , and the cable 110 is partially wound around the recessed portion.

[0123] like Figure 8 As shown, in one embodiment of the present invention, the design of the adjustment wheel 148 has been further innovated, particularly by forming a recessed portion on its outer circumferential surface. This design allows the cable 110 to be more stably positioned on the adjustment wheel 148 during the winding process, thereby improving the secure fixation of the cable 110 and the accuracy of adjustment.

[0124] The outer circumferential surface of the adjusting wheel 148 is the main area for winding the cable 110. In order 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. During the winding process of the cable 110, part of the cable will be guided into the recessed portion. Due to the presence of the recessed portion, the cable 110 can naturally embed into it during winding, forming a stable winding structure. This design reduces the possibility of slipping and loosening of the cable 110 during the winding process, and improves the firmness of the fixation of the cable 110.

[0125] The recessed portion design allows the cable 110 to fit more closely against the adjusting wheel 148 during winding, thereby improving the secure fixation of the cable 110. The recessed portion design also reduces the direct contact area between the cable 110 and the adjusting wheel 148 to a certain extent, reducing wear caused by friction and extending the service life of the cable 110 and the adjusting wheel 148.

[0126] Adjustment method 2:

[0127] In this adjustment method, the cable length adjustment mechanism includes a base 100, a positioning seat 147, an adjusting 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 portion of the cable 110 is wound around the adjusting wheel 148; the positioning seat 147 is used to be installed on the mounting seat 144 of the lamp; the adjusting member 150 is movably mounted on the positioning seat 147 and connected to the movable seat 146, and the adjusting member 150 and the positioning seat 147 are suitable for being guided and connected through a guide structure; the adjusting member 152 is transmission-connected to the adjusting member 150 to drive the adjusting member 150 to move.

[0128] In this cable length adjustment mechanism, the base 100 serves as the basic supporting component of the entire adjustment mechanism. A movable seat 146 is movably installed on the base 100, 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 cable 110 length.

[0129] An adjusting wheel 148 is provided on the movable seat 146 . By rotating the adjusting wheel 148 , the length of the cable 110 wound around the adjusting wheel 148 can be changed, thereby achieving the purpose of adjusting the length of the cable 110 .

[0130] The positioning seat 147 is mainly used to be installed on the mounting seat 144 of the lamp to fix and support the adjusting member 152.

[0131] Adjustment member 150 is movably mounted on positioning seat 147. Adjustment member 150 is connected to movable seat 146 and is used to adjust the relative position between movable seat 146 and positioning seat 147. Adjustment member 150 and positioning seat 147 are connected by a guide structure. This guide design ensures the stability and accuracy of adjustment member 150 during movement, preventing deviation or shaking.

[0132] The adjusting member 152 is in transmission connection with the adjusting member 150 , and the user can drive the adjusting member 150 to move by operating the adjusting member 152 .

[0133] The user can adjust the length of the cable 110 wound around the adjustment wheel 148 by adjusting the position of the adjustment wheel 148. The transmission connection between the adjustment member 152 and the adjustment member 150 is designed to be efficient and rational. The user can smoothly drive the adjustment member 150 by operating the adjustment member 152. This efficient transmission and drive design makes the adjustment process more labor-saving and smooth, improving the user experience.

[0134] According to an embodiment of the present invention, the adjusting member 150 includes a rack, one end of which is connected to the movable seat 146 , and the rack and the positioning seat 147 are adapted to be guided and connected via a guide structure.

[0135] like Figures 9 to 11 As shown, according to one embodiment of the present invention, the design of the adjustment member 150 has been further refined and optimized. In this embodiment, the adjustment member 150 mainly includes a rack, which utilizes the linear motion characteristics of the rack to drive the movable seat 146 to move, thereby adjusting the length of the cable 110.

[0136] One end of the rack is fixedly connected to the movable seat 146. This connection ensures that when the rack moves, it can directly drive the movable seat 146 to move synchronously. This direct mechanical connection improves the efficiency and reliability of the transmission.

[0137] The rack and the positioning seat 147 are connected by a guide structure. The function of this guide 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 adjustment accuracy and maintaining the stability of the mechanism.

[0138] The guide structure can be a combination of a slide rail, a guide groove 168, or a rolling bearing. For example, a slide rail or guide groove 168 can be designed on one side of the rack, while a matching slide groove 136 or guide rail is provided on the positioning seat 147. When the rack moves, its slide rail or guide groove 168 slides within the slide groove 136 or guide rail of the positioning seat 147, thus achieving a guided connection. Furthermore, to reduce friction and wear, auxiliary elements such as lubricants or rolling bearings can be added between the guide structures.

[0139] Guided by the guide structure, the rack maintains a stable linear motion trajectory, thereby improving the accuracy of cable 110 length adjustment. This is particularly important in applications requiring precise control of cable 110 length. The presence of the guide structure prevents the rack from shifting or shaking during movement, thereby enhancing the stability and reliability of the entire adjustment mechanism.

[0140] According to one embodiment of the present invention, the guide structure includes a guide groove 168 and a guide block 170; the guide groove 168 is opened in one of the rack and the positioning seat 147; the guide block 170 is arranged in the other one of the rack and the positioning seat 147, and the guide block 170 is guided and connected to the guide groove 168.

[0141] like Figure 10 As shown, in one embodiment of the present invention, the design of the guide structure is further clarified and refined. The guide structure is composed of a guide groove 168 and a guide block 170. This design ensures the stability and accuracy of the rack during movement.

[0142] The guide groove 168 is formed on one of the rack and the positioning seat 147 , and the guide block 170 is disposed on the other of the rack and the positioning seat 147 , corresponding to the guide groove 168 .

[0143] During assembly, the guide block 170 is precisely mounted on the rack or positioning seat 147 and corresponds to the guide groove 168 on the other component. When the rack moves, the guide block 170 slides in the guide groove 168, thereby guiding and constraining the motion trajectory of the rack.

[0144] The presence of the guide structure enables the rack to maintain a stable linear motion trajectory during movement, preventing deviation and shaking. This stable motion not only improves the accuracy of cable 110 length adjustment, but also enhances the stability and reliability of the entire adjustment mechanism. Through the coordinated action of guide groove 168 and guide block 170, the rack can maintain a precise linear motion trajectory during movement, thereby improving the accuracy of cable 110 length adjustment.

[0145] According to an embodiment of the present invention, the adjusting member 152 includes an adjusting gear meshing with the rack for transmission. The adjusting gear is used to be installed on the mounting base 144 or the base 100 of the lamp. The adjusting gear is connected to a connecting rod, and an adjusting nut 172 is provided on the connecting rod.

[0146] like Figure 10 As shown, in one embodiment of the present invention, the design of the adjustment member 152 has been further enriched and improved. The adjustment member 152 primarily comprises an adjustment gear that meshes with the rack, a connecting rod connected thereto, and an adjustment nut 172. This design combines the precision of the adjustment gear transmission with the flexibility of the connecting rod, providing the user with a convenient and reliable method for adjusting the length of the cable 110.

[0147] The adjustment gear is designed to mesh with the rack, and the rotation of the adjustment gear drives the rack to move linearly. This meshing transmission method has the advantages of high transmission efficiency and precise transmission ratio, which can ensure the accuracy and stability of cable 110 length adjustment.

[0148] The adjusting gear is mounted on the mounting base 144 or the base 100 of the lamp. This mounting position is convenient for the user to operate and 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 base 147 or other fixed components.

[0149] 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 allows the user to rotate the adjusting nut 172 to drive the connecting rod and the adjusting gear to rotate, thereby driving the rack to perform linear motion.

[0150] The adjusting nut 172 is provided on the connecting rod, and the user can realize 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 that it is easy to operate and has a good feel.

[0151] By adjusting the meshing transmission of the 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 needs in different application scenarios. The stability and reliability of the adjusting gear transmission are fully utilized, making the entire adjustment mechanism less likely to generate 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 adjust 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 easier and more enjoyable.

[0152] According to an embodiment of the present invention, a pressing member 174 is disposed on the positioning seat 147 , and at least a portion of the pressing member 174 is pressed above the adjusting member 150 .

[0153] like Figure 10 As shown, in one embodiment of the present invention, the design of the positioning seat 147 is further enhanced, particularly by adding a pressing member 174 to improve the stability and fixation of the adjustment member 150. This design ensures that the adjustment member 150 will not become loose or deflected due to external forces during operation, thereby ensuring the accuracy and reliability of the cable 110 length adjustment.

[0154] The pressing member 174 is disposed on the positioning seat 147 and is at least partially pressed against the adjusting member 150. This arrangement enables the pressing member 174 to directly exert downward pressure on the adjusting member 150, thereby firmly securing it to the positioning seat 147. The number and distribution of the pressing members 174 can be flexibly adjusted based on the size and shape of the adjusting member 150 and the required securing force.

[0155] The presence of the pressing member 174 stabilizes the position of the adjusting member 150 on the positioning seat 147, making it less susceptible to loosening or displacement due to external forces. This stability ensures the accuracy and reliability of cable 110 length adjustment, avoiding adjustment failure or increased error due to loosening of the adjusting member 150.

[0156] According to an embodiment of the present invention, an adjusting bolt 176 is provided on the pressing member 174 . The adjusting bolt 176 is used to be installed on the mounting base 144 of the lamp to adjust the distance between the pressing member 174 and the adjusting member 150 .

[0157] like Figure 11 As shown, an adjustment bolt 176 is added to the pressing member 174, allowing the user to easily 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 accurately adjust the pressure according to different situations, thereby further improving the accuracy and reliability of cable 110 length adjustment.

[0158] The adjusting bolt 176 is mounted on the pressing member 174, usually between the pressing member 174 and the lamp mounting base 144. This 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 between the two.

[0159] In order to ensure that the adjusted pressing member 174 can be stably maintained in the desired position, the adjusting bolt 176 should also have a corresponding fixing mechanism. This can be achieved by a nut, a buckle, etc., to ensure that the pressing member 174 will not move accidentally due to external forces during the adjustment process.

[0160] 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 mounted on the seat body 164 ; and the support block 166 is connected to the seat body 164 to support the seat body 164 .

[0161] In one embodiment of the present invention, the base 164 is a structure with certain rigidity and stability, and the adjusting wheel 148 is rotatably mounted on the base 164 for winding the cable 110 .

[0162] Support block 166 is a component connected to base 164 to support it. Support block 166 is typically designed to be sturdy and durable, with a certain degree of elasticity or cushioning properties to ensure that base 164 remains stable and reduces vibration and noise when subjected to external forces. Support block 166 and base 164 can be connected and fixed by bolts or other means.

[0163] The rationally designed structure of adjustment wheel 148 and support block 166 ensures the stability and reliability of cable 110 during winding and unwinding, thereby improving the precision and accuracy of cable 110 length adjustment. Support block 166 provides stable support for base 164, ensuring stability and reducing vibration and noise when subjected to external forces. This helps improve the stability and reliability of the entire adjustment mechanism.

[0164] In addition, it should be noted that if Figure 4As shown, in the above two adjustment methods, two guide wheels 142 are provided along the length 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, the cable 110 is first partially wound around the inner side of the first guide wheel 142, and then the cable 110 passes through the first guide wheel 142 and around the outer side of the adjustment wheel 148. The cable 110 then passes through the inner side of the second guide wheel 142. This arrangement reduces the resistance encountered by the cable 110 during the extension and retraction process, making it easier to achieve the lifting and lowering control of the lamp body 112.

[0165] A second embodiment of the present invention provides a lamp, comprising the above-mentioned resistance structure or the above-mentioned wire length adjustment mechanism.

[0166] According to the lamp provided by the embodiment of the second aspect of the present invention, by having an obstruction structure built into the lamp, it is possible to monitor in real time whether the lamp body 112 encounters an obstacle during the lifting process. Once an obstruction is detected, the obstruction structure will immediately trigger a corresponding reaction mechanism, such as stopping the motor from rotating, thereby avoiding a collision between the lamp and the obstacle, effectively protecting the lamp from damage, and also protecting the safety of the surrounding environment. By adding the obstruction structure, the lamp is safer and more reliable during the automatic lifting process, which not only reduces the safety hazards caused by human negligence or misoperation, but also avoids electrical or mechanical failures caused by continuous obstruction, further improving the safety of the lamp. The obstruction structure can effectively prevent the lamp from continuing to operate when it is obstructed, thereby 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.

[0167] According to an embodiment of the present invention, a mounting base 144 and a lamp body 112 are further included. The lamp body 112 is escalably mounted on the mounting base 144 via a cable 110 , and the base 100 is mounted on the mounting base 144 .

[0168] like Figure 1 As shown, the mounting base 144 serves as the support base of the entire lamp and is designed to be stable and easy to install. The mounting base 144 has sufficient strength and rigidity to withstand the weight and force generated by components such as the lamp body 112, the cable 110, and the pulley 108 system.

[0169] The lamp body 112 is the core part of the lighting system and is connected to the mounting base 144 via a cable 110. One end of the cable 110 is connected to the lamp body 112, and the other end passes through the adjustment wheel 148 and the pulley 108 and is finally fixed to the mounting base 144 or other fixed points.

[0170] 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 component such as a motor.

[0171] like Figure 12 As shown, in this embodiment of the present invention, the aforementioned motor and other driving components are disposed on the mounting base 144. Taking the motor as an example, a driving gear 178 is connected to the output shaft of the motor. To achieve stable suspension of the lamp body 112, multiple bases 100 are evenly spaced along the circumference of the mounting base 144. For example, if there are three bases 100, if the mounting base 144 is circular, the interval between the three bases 100 is 120 degrees. Correspondingly, driven gears 180 are disposed for the three bases 100, and the three driven gears 180 are respectively meshed with the driving gear 178 for transmission.

[0172] 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, it synchronously drives the three driven gears 180 to tighten the cable 110, and the lamp body 112 rises. When the driving gear 178 rotates reversely, it synchronously drives the three driven gears 180 to release the cable 110, and the lamp body 112 descends.

[0173] It is understood that during the raising and lowering process, the lamp body 112 can be synchronously controlled via the cables 110 connected to the three bases 100. If the lamp body 112 encounters an obstacle during its descent, the motor drives the driving gear 178 to stop rotating. This stops the driving gear 178, which in turn stops the three driven gears 180. At this point, the cables 110 connected to the three bases 100 also stop synchronously. Once the obstacle is removed, the lamp body 112 can be controlled again.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A wire length adjustment mechanism, characterized in that: include: A base (100), wherein a movable seat (146) is movably mounted on the base (100), an adjusting wheel (148) is provided on the movable seat (146), and a portion of the cable (110) is wound around the adjusting wheel (148); An adjusting member (150) is mounted on the base (100) and is in transmission connection with the movable seat (146); An adjusting member (152) is transmission-connected to the adjusting member (150) to drive the adjusting member (150) to move.

2. The wire length adjustment mechanism according to claim 1, characterized in that: The adjusting member (150) includes a screw, which is threadedly connected to the base (100), and a connecting head is provided at the first end of the screw, which is rotatably connected to the movable seat (146), and the screw is used to drive the movable seat (146) to move along the axial direction of the screw.

3. The wire length adjustment mechanism according to claim 2, characterized in that: 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 in driving connection with the screw.

4. The wire length adjustment mechanism according to claim 3, characterized in that: A mounting member (158) is provided on the base (100), and the turbine (154) is rotatably mounted on the mounting member (158).

5. The wire length adjustment mechanism according to claim 3, characterized in that: A fixing buckle (160) is provided on the base (100), and the worm (156) is rotatably mounted on the fixing buckle (160).

6. The wire length adjustment mechanism according to claim 3, characterized in that: The second end limiting portion (162) of the screw has a limiting portion (162), and the limiting portion (162) is used to limit the extreme positions of the screw and the turbine (154).

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

8. The wire length adjustment mechanism according to claim 7, characterized in that: A recessed portion is formed on the adjusting wheel (148) along the outer circumferential surface of the adjusting wheel (148), and the cable (110) is partially wound around the recessed portion.

9. The wire length adjustment mechanism according to any one of claims 1 to 6, characterized in that: Along the length direction of the base (100), fixed seats (140) are provided on both sides of the movable seat (146), and a guide wheel (142) is provided on the fixed seat (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.

10. A lamp, characterized in that: The invention comprises a mounting seat (144) and a lamp body (112), wherein the mounting seat (144) is provided with a cable length adjustment mechanism according to any one of claims 1 to 9, and the cable (110) is connected between the mounting seat (144) and the lamp body (112).

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