Lamp lifter

Abstract

The utility model discloses a lamp lifter, which relates to the technical field of lamps and comprises a support and a turntable, and a fixing shaft is arranged on the support. The rotating disc is rotationally connected to the fixing shaft, a winding shaft used for winding a wire is arranged on one side of the rotating disc, a lamp is hung at the end, away from the winding shaft, of the wire, the winding shaft is provided with a containing cavity, a coil spring is arranged in the containing cavity, and the two ends of the coil spring are connected with the winding shaft and the fixing shaft respectively. When the lamp is pulled, the coil spring can apply elastic force to the winding shaft, the elastic force can offset the weight of the lamp to prevent the lamp from falling due to the gravity effect, so that the lamp stays at the preset height, a locking mechanism does not need to be used, the lamp can automatically stay at the preset height after the height of the lamp is adjusted, and only the lamp needs to be directly pulled when the height needs to be adjusted. The operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a lamp lifter. Background Art

[0002] In the related art, hanging lamps can be adjusted up and down, and the height of the lamps can be conveniently adjusted without the need for personnel to climb ladders to change the height of the lamps. The lamps can be lowered to a suitable position, which is convenient for cleaning and maintenance of the lamps. However, after the height of the lifting lamps is adjusted, a locking device is required to fix the height of the lamps. When the height is readjusted, the locking mechanism needs to be unlocked, and the adjustment operation is cumbersome. The lamps cannot automatically stay at any height. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a lamp lifter, which can automatically stop the lamp and improve the convenience of operation.

[0004] A lamp lifter according to an embodiment of the utility model includes:

[0005] A bracket having a fixed axis;

[0006] A turntable is rotatably connected to a fixed shaft, a winding shaft for winding a wire is provided on one side of the turntable, a lamp is hung on the end of the wire away from the winding shaft, the winding shaft has a receiving cavity, a coil spring is provided in the receiving cavity, and two ends of the coil spring are respectively connected to the winding shaft and the fixed shaft;

[0007] When the lamp is pulled, the coil spring can exert elastic force on the reel to prevent the lamp from falling due to gravity, so that the lamp stays at a preset height.

[0008] A lamp lifter according to an embodiment of the utility model has at least the following beneficial effects: the embodiment is provided with a bracket and a turntable, the bracket is provided with a fixed shaft; the turntable is rotatably connected to the fixed shaft, a winding shaft for winding a wire is provided on one side of the turntable, a lamp is hung on the end of the wire away from the winding shaft, the winding shaft has a receiving cavity, a coil spring is provided in the receiving cavity, and the two ends of the coil spring are respectively connected to the winding shaft and the fixed shaft. When the lamp is pulled, the coil spring can apply elastic force to the winding shaft, and the elastic force can offset the weight of the lamp to prevent the lamp from falling due to gravity, so that the lamp stays at a preset height, without using a locking mechanism, and the lamp can automatically stay at the preset height after adjusting the height of the lamp, and when the height needs to be adjusted, the lamp only needs to be directly pulled, which is easy to operate.

[0009] According to some embodiments of the utility model, a damping ring is sleeved on the fixed shaft, and the radial inner wall of the rotating disk abuts against the radial outer wall of the damping ring.

[0010] According to some embodiments of the utility model, a conductive disk is provided on the bracket, the conductive disk is located on a side of the rotating disk away from the winding shaft, and a conductive ring connected to the wire is provided on the conductive disk.

[0011] According to some embodiments of the utility model, a connector is provided on the side of the turntable away from the winding shaft, the connector is provided with a conductive member connected to the wire, the conductive member elastically contacts the conductive ring, and the conductive member is connected to the conductive ring.

[0012] According to some embodiments of the utility model, a matching column is provided on the conductive disk, and the matching column is coaxially arranged with the fixed shaft and fixedly connected to each other.

[0013] According to some embodiments of the present invention, a cover is provided on the fixed shaft, and the cover covers a side of the turntable on which the winding shaft is provided.

[0014] According to some embodiments of the utility model, a limiting sleeve is sleeved on the fixed shaft, one end of the limiting sleeve abuts against the end of the winding shaft arranged on the turntable, and the other end abuts against the inner wall of the cover along the radial direction of the fixed shaft.

[0015] According to some embodiments of the utility model, the fixed shaft is provided with a slot penetrating along the radial direction thereof, and the slot is used to buckle the end of the coil spring.

[0016] According to some embodiments of the utility model, a connecting port is provided on the winding shaft, and two ends of the coil spring are respectively provided with a first connecting end fixed to the connecting port and a second connecting end buckled to the slot, and the first connecting end is located on the radial outer side of the coil spring.

[0017] According to some embodiments of the present utility model, the limiting sleeve is provided with an opening allowing the second connecting end to pass through.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is an axonometric view of a lamp lifter in an embodiment of the utility model;

[0021] Figure 2 It is a first cross-sectional view of a lamp lifter in an embodiment of the utility model;

[0022] Figure 3 It is a second cross-sectional view of a lamp lifter in an embodiment of the utility model;

[0023] Figure 4 for Figure 3 A magnified view of center A;

[0024] Figure 5 It is an axonometric view of a turntable in an embodiment of the utility model;

[0025] Figure 6 It is an axonometric view of the fixed shaft and the cover in the embodiment of the utility model.

[0026] Reference numerals:

[0027] Bracket 100; slot 101; cover 102; damping ring 103; conductive plate 104; conductive ring 105; connector 106; conductive member 107; matching column 108; fixed shaft 109;

[0028] Rotating disk 110 ; winding shaft 111 ; connecting port 112 ; coil spring 113 ; first connecting end 114 ; second connecting end 115 ; limiting sleeve 116 ; opening 117 ; wire 118 ; wire outlet hole 119 ; elastic member 120 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figure 1 and Figure 2 In the embodiment of the utility model, a lamp lifter includes a bracket 100 and a turntable 110. The bracket 100 is provided with a fixed shaft 109. The turntable 110 is rotatably connected to the fixed shaft 109. A winding shaft 111 for winding a wire 118 is provided on one side of the turntable 110. A lamp is hung on the end of the wire 118 away from the winding shaft 111. The winding shaft 111 has a receiving cavity. A coil spring 113 is provided in the receiving cavity. The two ends of the coil spring 113 are respectively connected to the winding shaft 111 and the fixed shaft 109. It can be understood that there are two brackets 100, and the two brackets 100 are located on both sides of the axial direction of the turntable 110. The bracket 100 is fixedly connected to the fixed shaft 109.

[0034] When the lamp is pulled, the coil spring 113 can apply elastic force to the winding shaft 111, and the elastic force can offset the weight of the lamp to prevent the lamp from falling due to gravity, so that the lamp stays at a preset height. There is no need to use a locking mechanism. After adjusting the height of the lamp, the lamp can automatically stay at the preset height. When the height needs to be adjusted, you only need to pull the lamp directly, which is easy to operate.

[0035] Reference Figure 3 and Figure 4 , a damping ring 103 is sleeved on the fixed shaft 109, and the radial inner wall of the turntable 110 is in contact with the radial outer wall of the damping ring 103. It can be understood that the lamp is suspended on the turntable 110 through the wire 118, and the coil spring 113 can exert an elastic force on the winding shaft 111 that is lower than the weight of the lamp, so that the lamp stays at a preset height. However, as the lamp continues to descend, as the angle of rotation of the turntable 110 relative to the fixed shaft 109 continues to increase, the elastic force of the coil spring 113 on the turntable 110 continues to increase, and it is easy to cause the lamp to automatically rise due to excessive torque of the coil spring 113 on the turntable 110, so that the lamp cannot automatically rise. Therefore, the damping ring 103 is used to increase the rotational damping of the turntable 110 relative to the fixed axis 109, so that when the elastic force of the coil spring 113 accumulates to a certain extent and causes the traction force of the turntable 110 on the wire 118 to be greater than the weight of the lamp, the damping of the damping ring 103 on the turntable 110 can offset part of the torque of the coil spring 113 on the turntable 110, thereby balancing the weight of the lamp and the traction force of the turntable 110 on the wire 118, so that the lamp can still automatically hover.

[0036] Reference Figure 5 and Figure 6A slot 101 is provided on the fixed shaft 109 and penetrates along its radial direction, and a connecting port 112 is provided on the winding shaft 111. The connecting port 112 connects the radial outer side of the winding shaft 111 with the accommodating cavity, and two ends of the coil spring 113 are respectively provided with a first connecting end 114 fixed to the connecting port 112 and a second connecting end 115 buckled to the slot 101. The first connecting end 114 is located on the radial outer side of the coil spring 113. It can be understood that the first connecting end 114 is buckled to the side wall of the connecting port 112, and the second connecting end 115 is inserted into the slot 101 and penetrates the fixed shaft 109 along the radial direction, so as to realize the elastic rotation connection between the winding shaft 111 and the fixed shaft 109.

[0037] Reference Figure 2 and Figure 3 , a conductive disk 104 is provided on the bracket 100, and the conductive disk 104 is located on the side of the rotating disk 110 away from the winding shaft 111. A conductive ring 105 connected to the wire 118 is provided on the conductive disk 104. It can be understood that the conductive ring 105 is used to connect the lamp to the power supply, so two conductive rings 105 are provided, and the two conductive rings 105 are distributed along the radial direction of the conductive disk 104, and the conductive ring 105 extends along the circumferential direction of the conductive disk 104. Correspondingly, a connector 106 is provided on the side of the rotating disk 110 away from the winding shaft 111, and the connector 106 is provided with a conductive member 107 connected to the wire 118, and the conductive member 107 elastically contacts the conductive ring 105, and the conductive member 107 is connected to the conductive ring 105. It is understandable that when the turntable 110 rotates, the connector 106 rotates with the turntable 110, and the conductive member 107 maintains pressure contact with the conductive ring 105 to keep the power on during the rotation process, and the conduction is not affected by the rotation angle. The height can also be adjusted at will during the lighting process of the lamp, which is conducive to improving the convenience of use. Further, an elastic member 120 is provided on the connector 106, and the elastic member 120 abuts against the other end of the conductive member 107 away from the conductive ring 105 to achieve elastic pressure contact between the conductive member 107 and the conductive ring 105, thereby ensuring the stability of the electrical connection. It is understandable that the conductive ring 105 and the conductive member 107 are made of copper to ensure the conductivity efficiency.

[0038] Furthermore, the conductive disk 104 is provided with a matching column 108, which is coaxially arranged with the fixed shaft 109 and fixedly connected to each other, and the matching column 108 and the fixed shaft 109 are simultaneously inserted into the rotating disk 110, so that the rotating disk 110 can be quickly removed during disassembly, which is convenient for maintenance. Furthermore, the fixed shaft 109 is provided with a cover 102, which covers the side of the rotating disk 110 provided with a winding shaft 111, which is conducive to protecting the wire 118. At the same time, a wire outlet hole 119 is provided in the radial outer wall of the cover 102, and the wire 118 extends out of the wire outlet hole 119, which is conducive to beautifying the appearance.

[0039] Reference Figure 4 A limiting sleeve 116 is sleeved on the fixed shaft 109, one end of the limiting sleeve 116 abuts against the end of the winding shaft 111 provided on the rotating disk 110, and the other end abuts against the inner wall of the cover 102 along the radial direction of the fixed shaft 109. During the installation process, the limiting sleeve 116 can be used to axially position the rotating disk 110. Further, referring to Figure 5 The limiting sleeve 116 is provided with an opening 117 allowing the second connecting end 115 to pass through, so that the second connecting end 115 on the coil spring 113 is inserted into the card slot 101 .

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A lamp lifter, characterized in that: include: A bracket having a fixed axis; A turntable is rotatably connected to the fixed shaft, a winding shaft for winding a wire is provided on one side of the turntable, a lamp is hung on one end of the wire away from the winding shaft, the winding shaft has a receiving cavity, a coil spring is provided in the receiving cavity, and two ends of the coil spring are respectively connected to the winding shaft and the fixed shaft; When the lamp is pulled, the coil spring can apply elastic force to the reel to prevent the lamp from falling due to gravity, so that the lamp stays at a preset height.

2. A lamp lifter according to claim 1, characterized in that: A damping ring is sleeved on the fixed shaft, and the radial inner wall of the rotating disk abuts against the radial outer wall of the damping ring.

3. The lamp lifter according to claim 1, characterized in that: The bracket is provided with a conductive disk, the conductive disk is located at a side of the rotating disk away from the winding shaft, and the conductive disk is provided with a conductive ring connected with the conducting wire.

4. A lamp lifter according to claim 3, characterized in that: A connector is provided on one side of the turntable away from the winding shaft. The connector is provided with a conductive member that is in electrical communication with the wire. The conductive member elastically contacts the conductive ring, and the conductive member is in electrical communication with the conductive ring.

5. The lamp lifter according to claim 3, characterized in that: The conductive disk is provided with a matching column, and the matching column is coaxially arranged with the fixed shaft and fixedly connected to each other.

6. The lamp lifter according to claim 1, characterized in that: The fixed shaft is provided with a cover, and the cover covers a side of the rotating disk on which the winding shaft is provided.

7. The lamp lifter according to claim 6, characterized in that: A limiting sleeve is sleeved on the fixed shaft, one end of the limiting sleeve abuts against the end of the winding shaft arranged on the rotating disk, and the other end abuts against the inner wall of the cover along the radial direction of the fixed shaft.

8. The lamp lifter according to claim 7, characterized in that: The fixed shaft is provided with a clamping groove penetrating along the radial direction thereof, and the clamping groove is used for buckling the end of the coil spring.

9. The lamp lifter according to claim 8, characterized in that: The winding shaft is provided with a connection port, and the two ends of the coil spring are respectively provided with a first connection end fixed to the connection port and a second connection end buckled to the slot, and the first connection end is located on the radial outer side of the coil spring.

10. The lamp lifter according to claim 9, characterized in that: The limiting sleeve is provided with an opening allowing the second connecting end to pass through.

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