Telescopic spotlight capable of hovering at any position

Abstract

The utility model discloses a telescopic spotlight capable of hovering at any position, which comprises a hollow lamp shell fixed on a wall body, a lamp body is arranged in the lamp shell in a penetrating manner, the lamp body can move downwards to extend out of the lower end of the lamp shell and move upwards to retract into the lamp shell, and a magnetic hovering device is arranged between the inner wall of the lamp shell and the outer wall of the lamp body. The magnetic suspension device is used for supporting between the inner wall of the lamp shell and the outer wall of the lamp body and forming vertical friction force through magnetic attraction to prevent the lamp body from freely falling.

Description

Technical Field

[0001] The utility model relates to a spot lamp, in particular to a telescopic spot lamp that can hover at any position. Background Art

[0002] At present, the telescopic spot lamps on the market generally adopt a ball detent system, a screw lifting device or an elastic clamping system to achieve the lifting function. However, these common lifting structures all have certain problems. The ball detent system requires the cooperation of balls and detents to fix the position of the spot lamp and cannot hover at any position. The screw lifting system is prone to over-twisting and damage of the internal cables due to the need to rotate the spot lamp, and the lifting range is limited. The elastic clamping system generates frictional force through a silica gel ring or a spring clip arranged in the lamp body to fix the position of the spot lamp. However, the feel during lifting is jerky, and in the high-temperature environment inside the spot lamp for a long time, the silica gel ring and the spring clip are prone to aging, resulting in a weakening of the frictional force and causing the spot lamp to fall.

[0003] Therefore, how to overcome the above-mentioned defects has become an important issue that needs to be solved urgently by those skilled in the art. Content of the Utility Model

[0004] The utility model overcomes the above-mentioned technical deficiencies and provides a telescopic spot lamp that can hover at any position.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A telescopic spot lamp that can hover at any position includes a hollow lamp housing 1 fixed on a wall. A lamp body 2 is inserted through the lamp housing 1. The lamp body 2 can move downward to extend out of the lower end of the lamp housing 1 and move upward to retract into the lamp housing 1. A magnetic levitation device 3 is provided between the inner wall of the lamp housing 1 and the outer wall of the lamp body 2. The magnetic levitation device 3 is used to support and form a vertical frictional force between the inner wall of the lamp housing 1 and the outer wall of the lamp body 2 through magnetic adsorption to prevent the lamp body 2 from free falling.

[0007] Preferably, the magnetic levitation device 3 includes two magnets 31 arranged on the outer wall of the lamp body 2. The two magnets 31 are distributed on both sides of the lamp body 2. Two oppositely arranged guiding members are fixed on the inner wall of the lamp housing 1. The guiding members correspond to the positions of the magnets 31 one by one so that the magnets 31 can be horizontally adsorbed onto the guiding members to generate a vertical frictional force. The guiding members extend vertically to keep the adsorption state with the magnets 31 when the lamp body 2 moves up and down.

[0008] Preferably, the guiding member is an iron guiding piece 32 or a magnetic strip.

[0009] Preferably, the side wall of the lamp body 2 is provided with accommodation grooves 33 corresponding to the positions of the magnets 31 one by one. The accommodation grooves 33 are used to accommodate the magnets 31, and the magnets 31 are limited in the accommodation grooves 33 and can only move radially along the spotlight.

[0010] Preferably, the lamp body 2 includes a lifting seat 21. A prolonging member 22 is rotatably connected to the lifting seat 21 and extends downward and can rotate around a vertical axis. The lower end of the prolonging member 22 is rotatably connected to a lamp cylinder 23 that can rotate around a horizontal axis. A light source is fixed inside the lamp cylinder 23. The magnetic levitation device 3 is arranged between the inner wall of the lamp housing 1 and the outer wall of the lifting seat 21.

[0011] Preferably, the inner wall of the lamp housing 1 is provided with two first limiting surfaces 11 that are oppositely distributed, extend vertically and are parallel to each other. The outer wall of the lifting seat 21 is provided with second limiting surfaces 211 that are oppositely distributed, extend vertically and are parallel to each other. The first limiting surfaces 11 and the second limiting surfaces 211 correspond to each other in position and are also parallel to each other. The gap between the corresponding first limiting surface 11 and the second limiting surface 211 is D, and 0.1 mm ≤ D ≤ 0.3 mm.

[0012] Preferably, the guiding members are embedded in the first limiting surfaces 11, and the magnets 31 are embedded in the second limiting surfaces 211. In this way, by embedding the guiding members and the magnets 31 in the corresponding limiting surfaces, the utilization rate of space can be improved, and the space wasted due to the installation structure of the guiding members and the magnets 31 can be reduced.

[0013] Preferably, the maximum static friction force formed by the magnetic levitation device 3 supporting between the lamp housing 1 and the lamp body 2 is F, the gravity of the lamp body 2 is G, and 0 < F - G ≤ 1 N.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The telescopic spotlight in this case can keep the lamp body hovering at any position through the magnetic levitation device. Since only the magnetic levitation device is provided between the lamp housing and the lamp body, and the magnetic levitation device forms a vertical friction force through magnetic adsorption to prevent the lamp body from free falling, there is no need to set a mechanical limiting structure between the lamp housing and the lamp body. In this way, the defects existing in the traditional marble card position system and the screw lifting system can be well solved. At the same time, the magnetic adsorption can maintain long-term stability and will not be weakened by high temperature. Therefore, the spotlight in this case can also well solve the durability problem existing in the elastic clamping system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is one of the schematic diagrams of the telescopic spotlight in this case.

[0017] Figure 2 is one of the cross-sectional schematic diagrams of the telescopic spotlight in this case.

[0018] Figure 3 This is the second cross-sectional view of the telescopic spotlight in this case.

[0019] Figure 4 This is the third cross-sectional view of the telescopic spotlight in this case.

[0020] Figure 5 This is the second view of the telescopic spotlight in this case, where the lamp body has been fully extended and rotated by a certain angle.

[0021] Figure 6 This is the exploded view of the telescopic spotlight in this case.

[0022] Figure 7 This is the exploded view of the lamp body in this case. Detailed implementation mode

[0023] The features of the present utility model and other related features are further described in detail through the following embodiments for the understanding of those skilled in the same industry:

[0024] As Figures 1 to 7 shown, a telescopic spotlight that can hover at any position includes a hollow lamp housing 1 fixed on a wall. A lamp body 2 is passed through the lamp housing 1. The lamp body 2 can move downward to extend out of the lower end of the lamp housing 1 and move upward to retract into the lamp housing 1. A magnetic levitation device 3 is provided between the inner wall of the lamp housing 1 and the outer wall of the lamp body 2. The magnetic levitation device 3 is used to support and form a vertical frictional force between the inner wall of the lamp housing 1 and the outer wall of the lamp body 2 through magnetic adsorption to prevent the lamp body 2 from free falling.

[0025] In the telescopic spotlight of this case, a magnetic levitation device 3 is provided between the lamp housing 1 and the lamp body 2. The magnetic levitation device 3 is magnetically adsorbed and supported between the inner wall of the lamp housing 1 and the outer wall of the lamp body 2, thereby forming a vertical frictional force, and the lamp body 2 is prevented from free falling in the lamp housing 1 through this frictional force. In this way, the lamp body 2 can be fixed in its original position without external intervention. When the user needs to adjust the length of the lamp body 2 extending out of the lamp housing 1, only need to gently push or pull the lamp body 2, so that the lamp body 2 can overcome the frictional force generated by the magnetic levitation device 3 to freely adjust the position of the lamp body 2. After the user finishes adjusting and releases the hand, the lamp body 2 will be fixed in the current position under the influence of the frictional force generated by the magnetic levitation device 3.

[0026] As described above, the telescopic spotlight in this case can keep the lamp body 2 hovering at any position through the magnetic levitation device 3. Since only the magnetic levitation device 3 is provided between the lamp housing 1 and the lamp body 2, and the magnetic levitation device 3 forms a vertical frictional force through magnetic adsorption to prevent the lamp body 2 from free falling, there is no need to set a mechanical limit structure between the lamp housing 1 and the lamp body 2. In this way, the defects existing in the traditional marble card position system and screw lifting system can be well solved. At the same time, the magnetic adsorption can maintain long-term stability and will not be weakened by high temperature. Therefore, the spotlight in this case can also well solve the durability problem existing in the elastic clamping system.

[0027] As Figure 2 、 Figure 4 and Figure 6 shown, preferably, the magnetic levitation device 3 includes two magnets 31 arranged on the outer wall of the lamp body 2. The two magnets 31 are distributed on both sides of the lamp body 2. Two oppositely arranged guiding members are fixed on the inner wall of the lamp housing 1. The guiding members correspond to the positions of the magnets 31 one by one so that the magnets 31 can be horizontally adsorbed onto the guiding members to generate a vertical frictional force, and the guiding members extend vertically so as to keep adsorbed to the magnets 31 when the lamp body 2 moves up and down.

[0028] As described above, the magnetic levitation device 3 in this case includes the magnets 31 arranged on the outer wall of the lamp body 2 and the guiding members arranged on the inner wall of the lamp housing 1. The positions of the magnets 31 and the guiding members correspond to each other one by one and there are two oppositely arranged ones respectively. Thus, after the lamp body 2 penetrates into the lamp housing 1, the magnets 31 will be adsorbed onto the corresponding guiding members, and in this way, a vertical frictional force will be generated between the magnets 31 and the guiding members. Through this frictional force, the lamp body 2 can be prevented from falling. Similarly, precisely because the lamp body 2 only hovers relying on the frictional force generated between the magnets 31 and the guiding members, and the guiding members extend vertically, users can easily change the length of the lamp body 2 extending out of the lamp housing 1 by simply pulling or pushing the lamp body 2 gently, and at the same time, they can also let go at any time and let the lamp body 2 hover at the current position again under the action of the frictional force.

[0029] As Figure 2 、 Figure 4 and Figure 6 shown, preferably, the guiding member is an iron guiding sheet 32 or a magnetic strip.

[0030] As described above, the guiding member in this case can be the iron guiding sheet 32, so that the magnet 31 can be adsorbed onto the iron guiding sheet 32. Similarly, the guiding member in this case can also be a magnetic strip, and the magnetic strip can also be attracted and adsorbed together with the magnet 31 to generate a vertical frictional force.

[0031] As Figure 2 、 Figure 4 、 Figure 6 and Figure 7As shown, preferably, a receiving groove 33 corresponding to the position of the magnet 31 one by one is provided on the side wall of the lamp body 2. The receiving groove 33 is used to receive the magnet 31, and the magnet 31 is limited in the receiving groove 33 and can only move along the radial direction of the spotlight.

[0032] As described above, a receiving groove 33 for placing the magnet 31 is provided on the side wall of the lamp body 2, and the magnet 31 can only move along the radial direction of the spotlight in the receiving groove 33 and cannot move up, down, left or right. In this way, when there is an error in the dimensions of the lamp body 2 and the lamp housing 1, it can be avoided that the distance between the magnet 31 and the guiding member is too close and the magnet 31 is directly pressed against the guiding member, resulting in a sharp increase in friction, or the distance between the magnet 31 and the guiding member is too far and the magnet 31 cannot be adsorbed to the guiding member and come into contact with the guiding member to generate friction. By using the receiving groove 33 to place the magnet 31, the magnet 31 can move along the radial direction of the spotlight under the drive of magnetic force and just be adsorbed to the guiding member, so as to generate a preset friction force to prevent the lamp body 2 from free falling.

[0033] As Figures 1 to 7 As shown, preferably, the lamp body 2 includes a lifting seat 21. A prolonging member 22 is rotatably connected to the lifting seat 21 and extends downward and can rotate around a vertical axis. The lower end of the prolonging member 22 is rotatably connected to a lamp barrel 23 that can rotate around a horizontal axis. A light source is fixed in the lamp barrel 23, and the magnetic levitation device 3 is arranged between the inner wall of the lamp housing 1 and the outer wall of the lifting seat 21.

[0034] As described above, the lamp body 2 of this case includes a lifting seat 21, a prolonging member 22 and a lamp barrel 23. The magnetic levitation device 3 is arranged between the inner wall of the lamp housing 1 and the outer wall of the lifting seat 21, and the prolonging member 22 is rotatably connected to the lifting seat 21 and can rotate around a vertical axis. The lamp barrel 23 equipped with a light source is rotatably connected to the lower end of the prolonging member 22 and can rotate around a horizontal axis. In this way, when the lamp body 2 moves down until the lamp barrel 23 is completely outside the lamp housing 1, the pitching angle of the lamp barrel 23 can be further adjusted by the relative rotation of the lamp barrel 23 and the prolonging member 22, and the orientation of the lamp barrel 23 can also be adjusted by the relative rotation of the prolonging member 22 and the lifting seat 21, so as to expand the coverage range of the spotlight in this case and allow users to adjust the lighting area more flexibly.

[0035] Specifically, the magnet 31 is arranged on the outer wall of the lifting seat 21.

[0036] As Figure 4 And Figure 6As shown, preferably, two first limiting surfaces 11 that are oppositely distributed, extend vertically, and are parallel to each other are provided on the inner wall of the lamp housing 1. Second limiting surfaces 211 that are oppositely distributed, extend vertically, and are parallel to each other are provided on the outer wall of the lifting seat 21. The first limiting surfaces 11 and the second limiting surfaces 211 are in one-to-one correspondence in position and are also parallel to each other. The gap between the corresponding first limiting surface 11 and the second limiting surface 211 is D, and 0.1 mm ≤ D ≤ 0.3 mm.

[0037] As described above, through the one-to-one correspondence and cooperation of the first limiting surfaces 11 and the second limiting surfaces 211, relative rotation between the lamp housing 1 and the lifting seat 21 can be prevented, and dislocation between the magnet 31 and the guiding member during the movement of the lamp body 2 can be avoided, so as to ensure that the magnetic levitation device 3 can continue to take effect after the lamp body 2 moves, and prevent the magnetic levitation device 3 from failing due to the dislocation between the magnet 31 and the guiding member, resulting in the lamp body 2 falling and causing danger. Reserving the gap D between the first limiting surface 11 and the second limiting surface 211 can avoid direct contact between the first limiting surface 11 and the second limiting surface 211, thereby increasing the frictional force between the lamp housing 1 and the lamp body 2.

[0038] As Figure 2 、 Figure 4 、 Figure 6 and Figure 7 As shown, preferably, the guiding member is embedded in the first limiting surface 11, and the magnet 31 is embedded in the second limiting surface 211. In this way, by embedding the guiding member and the magnet 31 in the corresponding limiting surfaces, the utilization rate of space can be improved, and the space wasted due to the installation structure of the guiding member and the magnet 31 can be reduced.

[0039] Specifically, the accommodating groove 33 is recessed in the second limiting surface 211.

[0040] Preferably, the maximum static frictional force supported by the magnetic levitation device 3 between the lamp housing 1 and the lamp body 2 is F, the gravity of the lamp body 2 is G, and 0 < F - G ≤ 1 N. In this way, by presetting the corresponding frictional force according to the gravity of the lamp body 2 and limiting the difference between the two, it can not only ensure that the lamp body 2 will not fall and can hover at any position, but also ensure that the user can easily move the lamp body 2 to adjust its position with only a small force, thereby improving the convenience of user use and the use experience.

[0041] As described above, the present case protects a telescopic spotlight that can hover at any position. All technical solutions that are the same as or similar to the present case should be regarded as falling within the protection scope of the present case.

Claims

1. A telescopic spotlight that can hover at any position, characterized in that It includes a hollow lamp housing (1) fixed to a wall. A lamp body (2) is inserted into the lamp housing (1). The lamp body (2) can move downward to extend out of the lower end of the lamp housing (1) and move upward to retract into the lamp housing (1). A magnetic levitation device (3) is provided between the inner wall of the lamp housing (1) and the outer wall of the lamp body (2). The magnetic levitation device (3) is used to support a vertical frictional force formed by magnetic adsorption between the inner wall of the lamp housing (1) and the outer wall of the lamp body (2) to prevent the lamp body (2) from free falling.

2. The telescopic spotlight capable of hovering at any position according to claim 1, wherein The magnetic levitation device (3) includes two magnets (31) arranged on the outer wall of the lamp body (2). The two magnets (31) are distributed on both sides of the lamp body (2). Two oppositely arranged guiding members are fixed on the inner wall of the lamp housing (1). The guiding members correspond to the positions of the magnets (31) one by one so that the magnets (31) can be horizontally adsorbed onto the guiding members to generate a vertical frictional force. The guiding members extend vertically so as to maintain the adsorption state with the magnets (31) when the lamp body (2) moves up and down.

3. The telescopic spotlight capable of hovering at any position according to claim 2, wherein The guiding member is an iron guiding piece (32) or a magnetic strip.

4. The telescopic spotlight capable of hovering at any position according to claim 2, wherein A receiving groove (33) corresponding to the position of the magnet (31) is provided on the side wall of the lamp body (2). The receiving groove (33) is used to receive the magnet (31). The magnet (31) is limited in the receiving groove (33) and can only move radially along the spotlight.

5. A telescopic spotlight capable of hovering at any position according to claim 1, characterized in that The lamp body (2) includes a lifting seat (21). A downwardly extending extension member (22) that can rotate around a vertical axis is rotatably connected to the lifting seat (21). A lamp barrel (23) that can rotate around a horizontal axis is rotatably connected to the lower end of the extension member (22). A light source is fixed in the lamp barrel (23). The magnetic levitation device (3) is provided between the inner wall of the lamp housing (1) and the outer wall of the lifting seat (21).

6. The telescopic spotlight capable of hovering at any position according to claim 2, wherein The upper part of the lamp body (2) is provided with a lifting seat (21). The magnet (31) is arranged on the outer wall of the lifting seat (21). Two first limiting surfaces (11) that are oppositely distributed, extend vertically and are parallel to each other are provided on the inner wall of the lamp housing (1). Two second limiting surfaces (211) that are oppositely distributed, extend vertically and are parallel to each other are provided on the outer wall of the lifting seat (21). The first limiting surface (11) and the second limiting surface (211) correspond to each other in position and are also parallel to each other. The gap between the corresponding first limiting surface (11) and the second limiting surface (211) is D, and 0.1mm ≤ D ≤ 0.3mm.

7. A telescopic spotlight capable of hovering at any position according to claim 6, characterized in that The guiding member is embedded in the first limiting surface (11), and the magnet (31) is embedded in the second limiting surface (211).

8. The telescopic spotlight capable of hovering at any position according to claim 1, wherein The maximum static frictional force formed by the magnetic levitation device (3) supporting between the lamp housing (1) and the lamp body (2) is F, and the gravity of the lamp body (2) is G, and 0 < F - G ≤ 1N.

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