Lamp

Abstract

The application relates to the technical field of lighting devices, and provides a lamp. The lamp comprises a lower lamp rod, an upper lamp rod and a lamp head, the lamp head is installed on the upper lamp rod, and the upper lamp rod is movably connected with the lower lamp rod; one of the lower lamp rod and the upper lamp rod is provided with a damping sliding block, and the other is provided with a sliding groove extending in the height direction, the damping sliding block and the sliding groove are frictionally matched to form a damping force; the lower lamp rod is provided with a force storage device, the force storage device is used for applying an upward force to the upper lamp rod, and in the moving stroke of the upper lamp rod relative to the lower lamp rod, the upward force applied by the force storage device to the upper lamp rod is not less than the difference between the gravity of the lamp head and the damping force, and is not greater than the sum of the gravity of the lamp head and the damping force, so that the lamp head is kept at any height position. The lamp provided by the application can keep the lamp head at any height position through the joint action of the force storage device and the damping sliding block, the action of fixing the lamp rod is not needed, the convenience of adjustment is improved, and the operation is more labor-saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting devices, in particular to a lamp. BACKGROUND

[0002] At present, the height-adjustable floor lamps on the market are generally electrically adjusted in height or manually adjusted in height and then tightened by screws. However, the electrically adjusted height requires a motor and other mechanisms, which increases the overall cost of the lamp. The manually adjusted height needs to be tightened by screws after being adjusted, which is inconvenient. SUMMARY

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a lamp.

[0004] The present application provides a lamp, comprising a lower lamp rod, an upper lamp rod and a lamp head, the lamp head is installed on the upper lamp rod, and the upper lamp rod is movably connected with the lower lamp rod.

[0005] One of the lower lamp rod and the upper lamp rod is provided with a damping sliding block, and the other is provided with a sliding groove extending in the height direction, the damping sliding block and the sliding groove are frictionally matched to form a damping force.

[0006] The lower lamp rod is provided with a force storage device, the force storage device is used to apply an upward force to the upper lamp rod, and within the moving stroke of the upper lamp rod relative to the lower lamp rod, the upward force applied by the force storage device to the upper lamp rod is not less than the difference between the gravity of the lamp head and the damping force, and is not greater than the sum of the gravity of the lamp head and the damping force, so that the lamp head is kept at any height position.

[0007] The lamp provided by the application has the damping sliding block arranged on one of the lower lamp rod and the upper lamp rod and the sliding groove extending along the height direction arranged on the other one, the damping force is formed through the friction fit of the damping sliding block and the sliding groove, the damping force can form the upward resistance when the upper lamp rod has the downward movement trend relative to the lower lamp rod, and the damping force can form the downward resistance when the upper lamp rod has the upward movement trend relative to the lower lamp rod, so that the lamp head installed on the upper lamp rod is kept at any height position; meanwhile, the force storage device is arranged on the lower lamp rod, the force storage device is used for applying the upward force to the upper lamp rod to offset at least part of the gravity of the lamp head installed on the upper lamp rod, the upward force applied to the upper lamp rod by the force storage device is not less than the difference between the gravity of the lamp head and the damping force, and the upward force applied to the upper lamp rod by the force storage device is not greater than the sum of the gravity of the lamp head and the damping force, so that the lamp head is kept at any height position through the cooperation of the force storage device and the damping sliding block, the action of fixing the lamp rod is not needed to be increased, the convenience of adjusting the height of the lamp is improved, and the force storage device can offset at least part of the gravity of the lamp head, so that the user does not need to use the same force or greater force than the weight of the lamp head to adjust when adjusting the height of the lamp, and the operation of adjusting the height of the lamp is more labor-saving.

[0008] In some embodiments, the upper lamp rod is provided with a rack extending along the height direction;

[0009] The force storage device comprises a mounting body, a rotating shaft, a gear and a coil spring, the rotating shaft is rotatably mounted on the mounting body, the gear is mounted on the rotating shaft, the gear is engaged with the rack, and the coil spring is wound on the rotating shaft, and the coil spring is tightened to store force or loosened to release force when the rotating shaft rotates.

[0010] In some embodiments, one end of the coil spring along the length direction is connected to the rotating shaft, and the other end of the coil spring along the length direction is connected to the mounting body.

[0011] The coil spring is configured to be tightened to store force when the upper lamp rod moves downward relative to the lower lamp rod, and to be loosened to release part of the stored force when the upper lamp rod moves upward relative to the lower lamp rod.

[0012] In some embodiments, the number of the coil springs is two, the two coil springs are arranged at the two ends of the rotating shaft along the axial direction respectively, the winding directions of the two coil springs are the same, and the gear is located between the two coil springs.

[0013] In some embodiments, the mounting body comprises a mounting seat and a mounting cover.

[0014] The mounting seat is provided with a supporting rib and a containing groove, the rotating shaft is rotatably supported on the supporting rib, the gear and the coil spring are contained in the containing groove, and the mounting cover covers the mounting seat and is connected with the mounting seat.

[0015] The side of the mounting base is provided with an opening corresponding to the gear, and the gear is engaged with the rack through the opening.

[0016] In some embodiments, the number of damping sliders is two, and the force storage device comprises a mounting body, and the two damping sliders are arranged on two opposite sides of the mounting body, respectively.

[0017] The number of sliding grooves is two, and the two damping sliders are in one-to-one friction fit with the two sliding grooves.

[0018] In some embodiments, the force storage device is mounted at the upper end of the lower lamp rod.

[0019] The force storage device comprises a mounting body, and a positioning protrusion is arranged on one of the mounting body and the lower lamp rod, and a positioning groove is arranged on the other one, and the positioning protrusion is inserted and positioned with the positioning groove along the height direction of the lower lamp rod.

[0020] One of the mounting body and the lower lamp rod is provided with a first mounting hole, and the other one is provided with a second mounting hole, and the mounting body is fixed with the lower lamp rod by a fastener penetrating the first mounting hole and the second mounting hole.

[0021] In some embodiments, the upper lamp rod comprises a lamp rod body, and a hollow cavity is formed in the lamp rod body.

[0022] The force storage device is arranged at the upper end of the lower lamp rod, and the force storage device and the upper end of the lower lamp rod are located in the hollow cavity to move in the hollow cavity when the upper lamp rod moves relative to the lower lamp rod.

[0023] In some embodiments, the upper lamp rod further comprises a lamp rod limiting member, which is connected to the lower end of the lamp rod body and located at the periphery of the lower lamp rod to limit the direction of the lower lamp rod during movement of the upper lamp rod relative to the lower lamp rod.

[0024] In some embodiments, the force storage device comprises a mounting body, and a limiting step is formed between the lower end of the mounting body and the peripheral wall surface of the upper end of the lower lamp rod, and the limiting step abuts against the lamp rod limiting member to limit the upper lamp rod from being pulled out of the upper end of the lower lamp rod. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application together with the description.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings can also provide other drawings based on these drawings for those ordinarily skilled in the art without any creative effort.

[0027] Figure 1 The overall structural schematic diagram of the lamp according to an embodiment of the present application is shown in the figure.

[0028] Figure 2 The partial structural schematic diagram of the lamp according to an embodiment of the present application is shown in the figure.

[0029] Figure 3 The structural schematic diagram of the upper lamp rod according to an embodiment of the present application is shown in the figure.

[0030] Figure 4 The assembly structural schematic diagram of the lower lamp rod and the force storage device according to an embodiment of the present application is shown in the figure.

[0031] Figure 5 The structural schematic diagram of the force storage device according to an embodiment of the present application is shown in the figure. Figure 4 The end surface structural schematic diagram of the lower lamp rod in part A is shown in the figure.

[0032] Figure 6 The exploded view of the force storage device according to an embodiment of the present application is shown in the figure.

[0033] Figure 7 The assembly structural schematic diagram of the upper lamp rod and the lower lamp rod according to an embodiment of the present application is shown in the figure.

[0034] Figure 8 The schematic diagram of the upper lamp rod moving downward relative to the lower lamp rod according to an embodiment of the present application is shown in the figure.

[0035] Figure 9 The schematic diagram of the upper lamp rod moving upward relative to the lower lamp rod according to an embodiment of the present application is shown in the figure.

[0036] 1, upper lamp rod; 11, lamp rod main body; 12, sliding groove; 13, rack; 14, lamp rod limiting piece;

[0037] 2, force storage device; 21, mounting seat; 211, first support rib; 212, first recess; 213, second support rib; 214, clamping block; 215, positioning groove; 216, second mounting hole; 217, limiting step; 22, rotating shaft; 221, slot; 23, gear; 24, coil spring; 241, clamping opening; 25, mounting cover; 251, abutting rib; 252, second recess; 26, damping sliding block;

[0038] 3, lower lamp rod; 31, positioning protrusion; 32, first mounting hole;

[0039] 4, lamp head;

[0040] 5. a base;

[0041] 6. a fastener. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the schemes of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other manners different from those described herein; obviously, the embodiments described in the specification are only a part of the embodiments of the present application, rather than all the embodiments.

[0044] With reference to Figures 1 to 9 It is shown that some embodiments of the present application provide a lamp, which comprises a lower lamp rod 3, an upper lamp rod 1 and a lamp head 4, the lamp head 4 is installed on the upper lamp rod 1, and the upper lamp rod 1 is movably connected with the lower lamp rod 3. By applying an upward or downward force to the upper lamp rod 1 or the lamp head 4, the upper lamp rod 1 and the lamp head 4 installed thereon can be moved up and down relative to the lower lamp rod 3, so as to achieve the purpose of adjusting the height of the lamp.

[0045] Specifically, the lamp can be a floor lamp, and the lamp can further comprise a base 5, the lower lamp rod 3 is installed on the base 5 to provide support for the lower lamp rod 3, the upper lamp rod 1 and the lamp head 4, so that the lamp can be stably placed on the ground. Of course, in specific implementation, the lamp is not limited to a floor lamp, but can also be a clamping lamp or other lamps with adjustable height, which is not specifically limited here.

[0046] Among them, with reference to Figures 7 to 9 It is shown that one of the lower lamp rod 3 and the upper lamp rod 1 is provided with a damping sliding block 26, and the other is provided with a sliding groove 12 extending in the height direction, and the damping sliding block 26 and the sliding groove 12 are frictionally matched to form a damping force.

[0047] Specifically, when the upper lamp rod 1 moves downward relative to the lower lamp rod 3 or has a downward moving trend, the damping sliding block 26 and the sliding groove 12 are frictionally matched to form an upward resistance; when the upper lamp rod 1 moves upward relative to the lower lamp rod 3 or has an upward moving trend, the damping sliding block 26 and the sliding groove 12 are frictionally matched to form a downward resistance, so as to facilitate the lamp head 4 installed on the upper lamp rod 1 to be kept at any height position.

[0048] It should be noted that the damping force formed by the friction fit between the damping sliding block 26 and the sliding groove 12 can offset part of the gravity of the lamp head 4, but the damping force is preferably smaller than the gravity of the lamp head 4, so as to avoid the problem of excessive friction between the damping sliding block 26 and the sliding groove 12 due to excessive damping force, and the problem of requiring a large force to drive the upper lamp rod 1 to move upward relative to the lower lamp rod 3.

[0049] With reference to the accompanying drawings Figures 7 to 9 As shown in the drawings, the lower lamp rod 3 is provided with a force storage device 2, and the force storage device 2 is used to apply an upward force to the upper lamp rod 1. Within the moving stroke of the upper lamp rod 1 relative to the lower lamp rod 3, the upward force applied by the force storage device 2 to the upper lamp rod 1 is not less than the difference between the gravity of the lamp head 4 and the damping force, and is not greater than the sum of the gravity of the lamp head 4 and the damping force, so that the lamp head 4 can be kept at any height position.

[0050] Specifically, when the damping force formed by the friction fit between the damping sliding block 26 and the sliding groove 12 is smaller than the gravity of the lamp head 4, the lamp head 4 cannot be kept at any height position only by the damping force. Therefore, the lamp provided by the embodiment of the present application is provided with the force storage device 2 on the lower lamp rod 3, so as to apply an upward force to the upper lamp rod 1 by the force storage device 2, thereby offsetting at least part of the gravity of the lamp head 4 installed on the upper lamp rod 1 by the force storage device 2. The upward force applied by the force storage device 2 to the upper lamp rod 1 is not less than the difference between the gravity of the lamp head 4 and the damping force, and is not greater than the sum of the gravity of the lamp head 4 and the damping force. Specifically, when the upward force applied by the force storage device 2 to the upper lamp rod 1 is smaller than the gravity of the lamp head 4, the damping sliding block 26 and the sliding groove 12 form an upward resistance by friction fit, and the lamp head 4 can be kept at the current height position by the combined action of the force storage device 2 and the damping sliding block 26. When the upward force applied by the force storage device 2 to the upper lamp rod 1 is greater than the gravity of the lamp head 4, the damping sliding block 26 and the sliding groove 12 form a downward resistance by friction fit, and the lamp head 4 can be kept at the current height position by the combined action of the damping sliding block 26 and the gravity of the lamp head 4, so as to prevent the upper lamp rod 1 from being pushed upward by the force storage device 2. Therefore, the lamp head 4 can be kept at any height position without increasing the action of fixing the lamp rod, and the convenience of adjusting the height of the lamp is improved.

[0051] In addition, since the force storage device 2 applies an upward force to the upper lamp rod 1, that is, an opposite force to the gravity of the lamp head 4, at least part of the gravity of the lamp head 4 can be offset, so that the user does not need to use the same force or a greater force than the weight of the lamp head 4 to adjust the height of the lamp, and the operation of adjusting the height of the lamp is more labor-saving.

[0052] Of course, in specific implementations, the damping force formed by the frictional cooperation between the damping slider 26 and the sliding groove 12 is not limited to being less than the weight of the lamp head 4. It can also be set to be greater than or equal to the weight of the lamp head 4. In this scheme, the lamp head 4 can be kept at any height position by relying solely on the damping force. However, relying solely on the damping force will make it relatively difficult to adjust the height of the lamp upward. Based on this, the lamp provided in this embodiment of the invention is provided with a power storage device 2 on the lower lamp post 3, so as to apply an upward force to the upper lamp post 1 through the power storage device 2. The upward force is greater than or equal to zero and less than or equal to the sum of the weight of the lamp head 4 and the damping force of the damping slider 26. In this way, the lamp head 4 can be kept at any height position without the need to add the action of fixing the lamp post, and the force required by the user to adjust the height of the lamp upward can be reduced, making the operation of adjusting the height of the lamp more effortless.

[0053] It should be noted that, since the weight of the upper lamp post 1 is very light compared to the weight of the lamp head 4, it can be ignored. Therefore, in this embodiment, the weight of the upper lamp post 1 is ignored when limiting the force applied to the power storage device 2. In addition, in specific settings, there may be other factors that interfere with the force applied to the power storage device 2. Therefore, in specific implementation, the above-mentioned limited force range can be adaptively adjusted. As long as it does not depart from the design concept of the present invention, it should be within the protection scope of the present invention.

[0054] In some embodiments, refer to Figure 3 , Figures 6 to 9 As shown, a rack 13 extending along the height direction is provided on the upper lamp post 1; the power storage device 2 includes a mounting body, a rotating shaft 22, a gear 23 and a coil spring 24. The rotating shaft 22 is rotatably mounted on the mounting body, the gear 23 is mounted on the rotating shaft 22 and meshes with the rack 13, and the coil spring 24 is wound around the rotating shaft 22. The coil spring 24 tightens to store power or loosens to release power when the rotating shaft 22 rotates.

[0055] Specifically, when the upper lamp post 1 moves upward or downward relative to the lower lamp post 3, it will drive the rack 13 set on the upper lamp post 1 to move upward or downward, thereby causing the gear 23 meshing with the rack 13 to rotate, which in turn drives the rotating shaft 22 to rotate. This causes the coil spring 24 wound on the rotating shaft 22 to tighten and store force or loosen force. The stored force of the coil spring 24 will form a reverse force on the gear 23, which will act on the rack 13 to form an upward force, thereby achieving the purpose of applying an upward force to the upper lamp post 1 using the power storage device 2.

[0056] In practice, the magnitude of the upward force exerted by the coil spring 24 on the rack 13 can be adjusted by reasonably setting parameters such as the number of turns of the coil spring 24 and the diameter of the coil spring 24. No specific limitation is made here.

[0057] With reference to the foregoing description Figure 6 , Figure 8 and Figure 9 , one end of the coil spring 24 is connected to the rotating shaft 22 along the length direction, and the other end of the coil spring 24 is connected to the mounting body; specifically, a slot 221 extending along the axial direction can be formed at the end of the rotating shaft 22, the one end of the coil spring 24 is clamped in the slot 221, and the one end of the coil spring 24 is mounted and fixed on the rotating shaft 22, and then the coil spring 24 is wound on the rotating shaft 22; the other end of the coil spring 24 can be provided with a bayonet 241, and a clamping block 214 is arranged on the mounting body of the force storage device 2, and the bayonet 241 is clamped on the clamping block 214, so that the other end of the coil spring 24 is mounted and fixed on the force storage device 2. In this way, the coil spring 24 can be rotated by the rotating shaft 22, so as to realize the winding of the coil spring 24 or the release of the force.

[0058] Specifically, with reference to the foregoing description Figure 8 and Figure 9 , the coil spring 24 is configured to wind the force when the upper lamp rod 1 moves downward relative to the lower lamp rod 3, and release part of the force when the upper lamp rod 1 moves upward relative to the lower lamp rod 3.

[0059] With reference to the foregoing description Figure 8 , when the upper lamp rod 1 moves downward relative to the lower lamp rod 3, the rack 13 on the upper lamp rod 1 moves downward along the vertical arrow shown in Figure 8 , the gear 23 and the rotating shaft 22 rotate counterclockwise along the arc-shaped arrow shown in Figure 8 , and the coil spring 24 wound on the rotating shaft 22 winds the force along the arc-shaped arrow, so as to exert a force on the gear 23 in the clockwise direction, and an upward force on the rack 13, thereby realizing the upward force exerted on the upper lamp rod 1 by the force storage device 2; as the upper lamp rod 1 moves downward relative to the lower lamp rod 3, the coil spring 24 continuously winds the force, and the upward force exerted on the upper lamp rod 1 by the force storage device 2 continuously increases.

[0060] With reference to the foregoing description Figure 9 , when the upper lamp rod 1 moves upward relative to the lower lamp rod 3, the rack 13 on the upper lamp rod 1 moves upward along the vertical arrow shown in Figure 9 , the gear 23 and the rotating shaft 22 rotate clockwise along the arc-shaped arrow shown in Figure 9 , and the coil spring 24 wound on the rotating shaft 22 releases part of the force, but does not release all the force, and at this time, the force exerted on the gear 23 is still in the clockwise direction, and an upward force is formed on the rack 13, thereby realizing the upward force exerted on the upper lamp rod 1 by the force storage device 2. As the upper lamp rod 1 moves upward relative to the lower lamp rod 3, the coil spring 24 continuously releases the force, and the upward force exerted on the upper lamp rod 1 by the force storage device 2 continuously decreases.

[0061] In the above embodiment, when the upper lamp rod 1 moves downward relative to the lower lamp rod 3 to the lowest height position, that is, when the lamp is adjusted to the minimum height, the upward force exerted by the force storage device 2 on the upper lamp rod 1 is the largest, and at this time, it is necessary to ensure that the upward force exerted by the force storage device 2 on the upper lamp rod 1 is not greater than the sum of the weight and damping force of the lamp head 4; when the upper lamp rod 1 moves upward relative to the lower lamp rod 3 to the highest height position, that is, when the lamp is adjusted to the maximum height, the upward force exerted by the force storage device 2 on the upper lamp rod 1 is the smallest, and at this time, it is necessary to ensure that the upward force exerted by the force storage device 2 on the upper lamp rod 1 is not less than the difference between the weight and damping force of the lamp head 4, so that the lamp head 4 can be kept at the adjusted height position when the lamp is adjusted to the minimum height and the maximum height, and any height between the minimum height and the maximum height, without the need to increase the structure of the fixed lamp rod.

[0062] In some embodiments, referring to Figure 6 As shown in the figure, the number of coil springs 24 is two, and the two coil springs 24 are respectively arranged at the two ends of the shaft 22 in the axial direction, and the winding directions of the two coil springs 24 are the same, and the gear 23 is located between the two coil springs 24. In this way, the force exerted on the gear 23 by the coil springs 24 on both sides of the gear 23 can be balanced, so that the upward force exerted on the rack 13 by the gear 23 is more balanced; in addition, compared with arranging one coil spring 24, the force storage of the force storage device 2 can be distributed to the two coil springs 24, so that the force storage of each coil spring 24 is reduced, which is beneficial to improve the service life and reliability of the coil spring 24. Of course, in specific implementation, it is also feasible to arrange only one coil spring 24.

[0063] In some embodiments, referring to Figure 6 As shown in the figure, the mounting body includes a mounting seat 21 and a mounting cover 25; the mounting seat 21 is provided with a first support rib 211 and a containing groove, the shaft 22 is rotatably supported on the first support rib 211, the gear 23 and the coil spring 24 are contained in the containing groove, and the mounting cover 25 is covered on the mounting seat 21 and connected with the mounting seat 21. Specifically, the mounting cover 25 and the mounting seat 21 can be fixedly connected by screws or other fasteners, or can be fixedly connected by buckles or other means.

[0064] In specific implementation, a first groove 212 corresponding to the shape of the rotating shaft 22 can be arranged on the first supporting rib 211, and the rotating shaft 22 is installed in the first groove 212; correspondingly, an abutting rib 251 corresponding to the first supporting rib 211 can be arranged on the installation cover 25, and a second groove 252 corresponding to the first groove 212 is arranged on the abutting rib 251; after the installation cover 25 is covered on the installation base 21, the abutting rib 251 abuts and cooperates with the first supporting rib 211, and the slot of the second groove 252 is opposite to the slot of the first groove 212, so as to limit the rotating shaft 22 in the accommodating space formed by the first groove 212 and the second groove 252, so that the rotating shaft 22 can rotate in the accommodating space.

[0065] In some embodiments, referring to Figure 6 , one end of the coil spring 24 along the length direction is connected to the rotating shaft 22, and the other end of the coil spring 24 along the length direction is connected to the installation base 21. Specifically, the second supporting rib 213 is arranged on the installation base 21, the clamping block 214 is arranged on the second supporting rib 213, one end of the coil spring 24 along the length direction is connected to the rotating shaft 22, and the other end of the coil spring 24 along the length direction is provided with the clamping opening 241, the clamping opening 241 is clamped on the clamping block 214, and the installation and fixation of the other end of the coil spring 24 on the installation base 21 are realized.

[0066] Continuing to refer to Figure 6 , the side surface of the installation base 21 is provided with an opening corresponding to the gear 23, and the gear 23 is engaged with the rack 13 through the opening, so that the gear 23 is exposed to the installation base 21 through the opening, thereby realizing the engagement of the gear 23 with the rack 13 arranged on the upper lamp rod 1.

[0067] In some embodiments, referring to Figure 6 and Figure 7 , the number of damping blocks 26 is two, and the force storage device 2 includes an installation body, and the two damping blocks 26 are arranged on two opposite side surfaces of the installation body respectively; the number of sliding grooves 12 is two, and the two sliding grooves 12 are arranged on two opposite side walls of the upper lamp rod 1 respectively, and the two damping blocks 26 are correspondingly frictionally matched with the two sliding grooves 12.

[0068] In this way, the two damping blocks 26 and the two sliding grooves 12 are correspondingly frictionally matched, and at the same time, the resistance in the direction opposite to the moving direction is applied to the upper lamp rod 1, compared with arranging one damping block 26, the damping force is more balanced, and the frictional resistance between each damping block 26 and the sliding groove 12 is reduced, which is beneficial to reducing the size of the damping block 26 and ensuring the reliability of the damping block 26. Of course, in specific implementation, it is also feasible to arrange only one damping block 26.

[0069] In specific implementation, the sliding groove 12 can be provided as a groove structure matched with the shape of the damping sliding block 26, and the sliding groove 12 is provided along the height direction of the upper lamp rod 1. In this way, not only the damping force can be provided by the friction between the damping sliding block 26 and the sliding groove 12, but also the damping sliding block 26 can be guided to slide along the extension direction of the sliding groove 12. Of course, in specific implementation, the sliding groove 12 is not limited to the groove structure with guiding function, that is, the specific shape of the sliding groove 12 can be reasonably set according to actual needs, as long as the damping sliding block 26 can be frictionally matched with the sliding groove 12 to form the damping force.

[0070] Specifically, referring to FIG. 1, Figure 6 As shown in FIG. 1, the mounting body of the force storage device 2 includes a mounting seat 21 and a mounting cover 25, and two opposite sides of the mounting seat 21 are respectively formed with mounting grooves, and two damping sliding blocks 26 are respectively mounted in the two mounting grooves. Specifically, the damping sliding blocks 26 can be fixed in the corresponding mounting grooves by screws.

[0071] In the above embodiment, the force storage device 2 is arranged on the lower lamp rod 3, and the damping sliding block 26 is arranged on the force storage device 2, that is, the damping sliding block 26 is indirectly arranged on the lower lamp rod 3. In specific implementation, the damping sliding block 26 can also be directly arranged on the lower lamp rod 3, that is, the damping sliding block 26 can also be directly fixed on the rod body of the lower lamp rod 3. In addition, in specific implementation, the damping sliding block 26 can be arranged on the upper lamp rod 1, and the sliding groove 12 can be arranged on the lower lamp rod 3.

[0072] It should be noted that, in specific implementation, the force storage device 2 is not limited to the coil spring 24 structure, and other elastic components such as springs can also be used to store force. For example, a spring is connected between the inside (for example, the top, or a certain position along the height direction) of the upper lamp rod 1 and the top of the lower lamp rod 3, and when the upper lamp rod 1 is located at the maximum height position relative to the lower lamp rod 3, the spring is in a certain compression state, thereby applying an upward force to the upper lamp rod 1. When the upper lamp rod 1 moves downward relative to the lower lamp rod 3, the spring is continuously compressed to store further force. When the upper lamp rod 1 moves upward relative to the lower lamp rod 3, the spring gradually resets and releases part of the stored force, but does not release all the stored force. Specifically, the upward force applied by the spring to the upper lamp rod 1 can be set to be not less than the difference between the gravity of the lamp head 4 and the damping force, and not greater than the sum of the gravity of the lamp head 4 and the damping force, within the moving stroke of the upper lamp rod 1 relative to the lower lamp rod 3. In this way, the upward force applied to the upper lamp rod 1 by the spring can be realized, and the damping force formed by the friction between the damping sliding block 26 and the sliding groove 12 can be realized, so that the lamp head 4 can be kept at any height position.

[0073] In some embodiments, referring to Figure 4 andFigure 5 As shown in the figures, the force storage device 2 is mounted on the upper end of the lower lamp pole 3; the force storage device 2 comprises a mounting body, the mounting body and the lower lamp pole 3 are provided with a positioning protrusion 31 and a positioning groove 215 respectively, the positioning protrusion 31 is inserted and positioned with the positioning groove 215 along the height direction of the lower lamp pole 3; one of the mounting body and the lower lamp pole 3 is provided with a first mounting hole 32, and the other is provided with a second mounting hole 216, the mounting body is fixed with the lower lamp pole 3 by the fastener 6 passing through the first mounting hole 32 and the second mounting hole 216.

[0074] In specific implementation, the upper end of the lower lamp pole 3 can be provided as a hollow structure, the positioning protrusions 31 are respectively arranged on the two opposite inner side walls of the lower lamp pole 3, the mounting body of the force storage device 2 comprises a mounting seat 21 and a mounting cover 25, the positioning grooves 215 are respectively arranged on the two opposite sides of the lower end of the mounting seat 21, the lower end of the mounting seat 21 is inserted into the hollow structure of the upper end of the lower lamp pole 3, and the positioning protrusions 31 are inserted and positioned with the positioning grooves 215 along the height direction of the lower lamp pole 3, after the insertion and positioning, the first mounting hole 32 on the lower lamp pole 3 is aligned with the second mounting hole 216 on the mounting seat 21, then the force storage device 2 is mounted and fixed on the lower lamp pole 3 by the fastener such as screw.

[0075] In some embodiments, referring to Figure 3 and Figure 7 As shown in the figures, the upper lamp pole 1 comprises a lamp pole body 11, and the lamp pole body 11 is formed with a hollow cavity; the force storage device 2 is arranged on the upper end of the lower lamp pole 3, and the force storage device 2 and the upper end of the lower lamp pole 3 are located in the hollow cavity to move in the hollow cavity when the upper lamp pole 1 moves relative to the lower lamp pole 3. In this way, the force storage device 2 is accommodated in the interior of the lamp pole body 11 of the upper lamp pole 1 without being exposed, thereby ensuring the aesthetics of the lamp.

[0076] Continuing to refer to Figure 3 and Figure 7 As shown in the figures, the upper lamp pole 1 further comprises a lamp pole limiting piece 14, which is connected to the lower end of the lamp pole body 11 and located at the periphery of the lower lamp pole 3 to limit the direction of the lower lamp pole 3 during the movement of the upper lamp pole 1 relative to the lower lamp pole 3. Specifically, during the movement of the upper lamp pole 1 relative to the lower lamp pole 3, when the upper lamp pole 1 is skewed, the lamp pole limiting piece 14 can abut against the peripheral wall surface of the lower lamp pole 3, thereby ensuring the vertical movement of the upper lamp pole 1 relative to the lower lamp pole 3.

[0077] Referring to Figure 7 As shown in the figures, the force storage device 2 comprises a mounting body, and a limiting step 217 is formed between the lower end of the mounting body and the peripheral wall surface of the upper end of the lower lamp pole 3, the limiting step 217 abuts against the lamp pole limiting piece 14 to limit the upper lamp pole 1 from being pulled out of the upper end of the lower lamp pole 3, thereby ensuring the reliability of adjusting the height of the lamp.

[0078] It has to be noted that, in the present document, the terms "first" and "second", etc. merely serve the purpose of distinguishing between two entities or operations, without necessarily requiring or implying any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "containing", or any other similar term are intended to encompass non-exclusive inclusions, such that a process, method, article, or apparatus that comprises a list of elements does not include those elements solely, but can also include other elements not expressly listed, or can also include elements inherent in such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without further constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0079] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Accordingly, the scope of the application is intended to be defined only as set forth in the claims.

Claims

1. A luminaire characterized by, The lamp post comprises a lower lamp post, an upper lamp post and a lamp head, the lamp head is installed on the upper lamp post, and the upper lamp post is movably connected with the lower lamp post; One of the lower lamp post and the upper lamp post is provided with a damping sliding block, and the other is provided with a sliding groove extending in the height direction, the damping sliding block and the sliding groove are frictionally matched to form a damping force; The lower lamp post is provided with a force storage device, the force storage device is used for applying an upward force to the upper lamp post, and in the moving stroke of the upper lamp post relative to the lower lamp post, the upward force applied by the force storage device to the upper lamp post is not less than the difference between the gravity of the lamp head and the damping force, and is not greater than the sum of the gravity of the lamp head and the damping force, so that the lamp head is kept at any height position; The upper lamp post is provided with a rack extending in the height direction; The force storage device comprises a mounting body, a rotating shaft, a gear and a coil spring, the rotating shaft is rotatably installed on the mounting body, the gear is installed on the rotating shaft, the gear is engaged with the rack, and the coil spring is wound on the rotating shaft, and the coil spring is tightened to store force or loosened to release force when the rotating shaft rotates; The mounting body comprises a mounting seat and a mounting cover; The mounting seat is provided with a supporting rib and a containing groove, the rotating shaft is rotatably supported on the supporting rib, the gear and the coil spring are contained in the containing groove, and the mounting cover is covered on the mounting seat and connected with the mounting seat; The side surface of the mounting seat is provided with an opening corresponding to the gear, and the gear is engaged with the rack through the opening.

2. The luminaire of claim 1, wherein, One end of the coil spring in the length direction is connected to the rotating shaft, and the other end of the coil spring in the length direction is connected to the mounting body; The coil spring is configured to be tightened to store force when the upper lamp post moves downward relative to the lower lamp post, and to be loosened to release part of the stored force when the upper lamp post moves upward relative to the lower lamp post.

3. The luminaire of claim 1, wherein, The number of the coil springs is two, the two coil springs are respectively arranged at the two ends of the rotating shaft in the axial direction, and the winding directions of the two coil springs are the same, and the gear is located between the two coil springs.

4. The luminaire of any one of claims 1 to 3, characterized in that The number of the damping sliding blocks is two, the force storage device comprises a mounting body, and the two damping sliding blocks are respectively arranged on the two opposite side surfaces of the mounting body; The number of the sliding grooves is two, the two sliding grooves are respectively arranged on the two opposite side walls of the upper lamp post, and the two damping sliding blocks are frictionally matched with the two sliding grooves one by one.

5. The luminaire of any one of claims 1 to 3, wherein, The force storage device is installed on the upper end of the lower lamp post; The force storage device comprises a mounting body, the mounting body and one of the lower lamp post are provided with a positioning protrusion, and the other is provided with a positioning groove, the positioning protrusion is inserted and positioned with the positioning groove in the height direction of the lower lamp post; One of the mounting body and the lower lamp post is provided with a first mounting hole, and the other is provided with a second mounting hole, and the mounting body is fixed with the lower lamp post through a fastener penetrating the first mounting hole and the second mounting hole.

6. The luminaire of any one of claims 1 to 3, wherein, The upper lamp post comprises a lamp post body, and the lamp post body forms a hollow cavity. The force storage device is arranged at the upper end of the lower lamp pole, and the force storage device and the upper end of the lower lamp pole are located in the hollow cavity to move in the hollow cavity when the upper lamp pole moves relative to the lower lamp pole.

7. The luminaire of claim 6, wherein, The upper lamp pole further comprises a lamp pole limiting member connected to the lower end of the lamp pole body and located at the periphery of the lower lamp pole to limit the direction of the lower lamp pole during movement of the upper lamp pole relative to the lower lamp pole.

8. The luminaire of claim 7, wherein, The force storage device comprises a mounting body, a limiting step is formed between the lower end of the mounting body and the peripheral wall surface of the upper end of the lower lamp pole, and the limiting step abuts against the lamp pole limiting member to limit the upper lamp pole from being pulled out of the upper end of the lower lamp pole.

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