CN211146267U

CN211146267U - Telescopic suspender and lamp

Info

Publication number: CN211146267U
Application number: CN201922490554.5U
Authority: CN
Inventors: 李英
Original assignee: Opple Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-07-31
Anticipated expiration: 2029-12-30

Abstract

The application discloses telescopic jib and lamps and lanterns. This telescopic jib includes: the locking device comprises a hollow first rod and a hollow second rod, wherein at least part of the second rod is axially and slidably arranged in the first rod in a penetrating way, a locking rod device is arranged on the first rod, the locking rod device comprises a shell with an inner cavity, and the inner cavity is provided with a first opening and a second opening; the inner diameter of the inner cavity is gradually reduced towards the first opening, the lantern ring is positioned in the inner cavity, a through hole is formed in the side wall of the lantern ring, a plurality of round beads are installed in the through hole, and the first rod is connected with the second opening of the shell; the second rod slidably extends through the lumen and the collar via the first opening, the collar being slidable in an axial direction of the second rod while the ball moves along the wall of the lumen and moves away from or compresses the second rod. Use the lamps and lanterns of telescopic jib of this application can conveniently freely adjust the height according to the demand.

Description

Telescopic suspender and lamp

Technical Field

The application relates to the field of lighting, in particular to a telescopic suspender. The application also relates to a luminaire using such a telescopic boom.

Background

Ceiling lights are typically mounted on a base using a light pole. In order to adjust the height of the ceiling lamp, the length of the lamp rod needs to be adjusted. However, in the prior art, the length of the lamp post is adjusted in a fixed length manner, which does not satisfy the requirement of a user for freely adjusting the height according to the requirement.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a telescopic jib and lamps and lanterns. Use the lamps and lanterns of telescopic jib of this application can conveniently freely adjust the height according to the demand.

A telescopic boom according to a first aspect of the present application, comprising: the locking device comprises a hollow first rod and a second rod, wherein at least part of the second rod is axially and slidably arranged in the first rod in a penetrating manner, a locking rod device is arranged on the first rod and comprises a shell with an inner cavity, and the inner cavity is provided with a first opening and a second opening; the inner diameter of the inner cavity is gradually reduced towards the first opening, the lantern ring is positioned in the inner cavity, a through hole is formed in the side wall of the lantern ring, a plurality of round beads are installed in the through hole, and the first rod is connected with the second opening of the shell; the second rod slidably extends through the lumen and the collar through the first opening, the collar being slidable in an axial direction of the second rod while the ball moves along a wall of the lumen and moves away from or compresses the second rod.

In one embodiment, the circumferential outer surface of the collar forms a truncated cone, and the small end of the truncated cone faces the first opening.

In one embodiment, a plurality of said beads are evenly distributed in the circumferential direction.

In one embodiment, the collar further comprises a sleeve connected to the small end of the truncated cone, the sleeve extending out of the housing through the first opening, the second rod slidably extending through the sleeve.

In one embodiment, a spring is disposed in the internal cavity, a first end of the spring compressing the collar on a side away from the first opening, a second end of the spring being secured in the internal cavity; an annular plug is arranged on one side, far away from the first opening, of the inner cavity, the second end of the spring is fixed to the annular plug, and the second rod extends through a central hole of the annular plug in a sliding mode.

In one embodiment, a threaded connection port is provided on an end of the housing, the first rod being threaded at the threaded connection port.

In one embodiment, a conductive path is provided within the first rod, a conductive member is provided on a first end of the second rod within the first rod in electrical contact with the conductive path, and a conductive wire is provided within the second rod in electrical connection with the conductive member, wherein the conductive member remains in electrical connection with the conductive path upon axial movement of the second rod relative to the first rod.

In one embodiment, the conductive path is a metal rail, and the conductive member is a metal spring sheet in sliding electrical contact with the metal rail.

In one embodiment, a fixing seat is further disposed at the first end of the second rod, the fixing seat includes a cylindrical body and a slot configured on a circumferential side wall of the cylindrical body, the metal elastic sheet includes an insertion portion and a folded portion connected to the insertion portion, the insertion portion is inserted into the slot and electrically connected to the conductive wire, and the folded portion is located radially outside the slot and in sliding contact with the metal guide rail.

In one embodiment, the number of the metal guide rails is 3, the metal guide rails are evenly distributed in the circumferential direction, and the slots and the metal elastic sheets are distributed corresponding to the metal guide rails.

In one embodiment, the conductive path is a resilient conductive wire disposed within the first rod, and the conductive member is an electrical connector disposed on the first end of the second rod, the resilient conductive wire being electrically connected to the electrical connector.

In one embodiment, a terminal end cap is provided on the end of the first rod remote from the locking bar, and the conductive path is electrically connected to the terminal end cap.

A luminaire according to a second aspect of the present application, characterized in that it comprises a lamp body and a telescopic suspension bar according to the above, said lamp body being mounted on a second end of said second rod, which is located outside said first rod.

Compared with the prior art, the beneficial effects of the utility model are as follows: (1) in using the boom of the present application, the second rod slides inward of the first rod or outward of the first rod under the control of the locking lever. When sliding the second pole to the required length of jib, accessible locking lever ware is in the fixed state with the second pole, from this, the user can freely adjust the length of jib as required. (2) When the suspender is used for installing the ceiling lamp, the height of the ceiling lamp can be conveniently adjusted according to the requirement.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 schematically shows a telescopic boom according to an embodiment of the invention.

Fig. 2 schematically shows a luminaire according to an embodiment of the invention.

Figure 3 schematically shows the structure of the locking lever in cross-section.

Fig. 4-6 schematically illustrate a first embodiment of the conductive path and the conductive member.

Fig. 7 schematically shows a second embodiment of the conductive path and the conductive member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 schematically shows a telescopic boom 1 (hereinafter referred to as boom 1) according to an embodiment of the present invention. As shown in fig. 1, the suspension rod 1 includes a hollow first rod 100 and a second rod 200, at least a part of the second rod 200 is axially slidably inserted into the first rod 100, a locking device 300 is disposed on the first rod 100, the second rod 200 extends through the locking device 300, and the locking device 300 makes the second rod 200 in a fixed state or a relatively slidable state with respect to the first rod 100.

When the boom 1 of the present application is used, the second rod 200 slides to the inside of the first rod 100 or slides to the outside of the first rod 100 under the control of the locking lever 300. When sliding the second rod 200 to a desired length of the hanger bar 1, the second rod 200 may be in a fixed state by the locking lever 300, and thus, a user may freely adjust the length of the hanger bar 1 as desired. When the hanger rod 1 is used for mounting a ceiling lamp (as shown in fig. 2), the height of the ceiling lamp can be conveniently adjusted according to requirements.

Fig. 3 schematically shows the structure of the locking lever 300 in a sectional view. As shown in fig. 3, locking lever 300 includes a housing 301 having an interior cavity 302. A first opening 304 is provided in the first axial end 303 of the housing 301, the first opening 304 communicating with the inner cavity 302. The inner cavity 302 is configured such that its inner diameter tapers toward the first opening 304. In one embodiment, for example, the lumen 302 is an internal conical or flared surface. Locking rod 300 also includes a collar 305 within lumen 302. The collar 305 has a through hole 306 in the side wall thereof, and a ball 307 is fitted into the through hole 306. The second rod 200 slidably extends through the lumen 302 and the collar 305 via a first opening 304. The collar 305 can slide in the axial direction of the secondary rod 200 while the ball 307 moves along the wall of the lumen 302 and moves away from or presses against the secondary rod 200. The first lever 100 is connected to the second axial end 308 of the housing 301.

For example, the collar 305 is close to the first opening 304, and the ball 307 is close to the first opening 304 and presses the second rod 200 to the initial state. In use of the locking lever 300, in an initial state, a portion of the ball 307 protrudes from the through hole 306 and presses the second lever 200 such that the second lever 200 is in a relatively stationary state with respect to the first lever 100. At this time, the length of the boom 1 is the first length. In one embodiment, in order to enable the beads 307 to press the second rod 200 more stably, the beads 307 are three in number and uniformly distributed in the circumferential direction. Of course, more than four beads 307 may be disposed in the circumferential direction, which is not described herein.

In adjusting the length of the boom 1, the collar 305 is first moved away from the first opening 304 in the inner cavity 302 so that the ball 307 moves along the wall of the inner cavity 302 and away from the first opening 304 as the collar 305 moves. Since the inner diameter of the inner cavity 302 gradually expands in a direction away from the first opening 304, the ball 307 moves along the wall surface of the inner cavity 302 and away from the first opening 304, so that it no longer presses the second rod 200. At this time, the second lever 200 is in a slidable state with respect to the first lever 100, and the length of the second lever 200 outside the first lever 100 can be conveniently adjusted.

After adjusting the second rod 200 to the desired length, the collar 305 is moved again to the first opening 304 in the inner cavity 302, so that the ball 307 is also moved along the wall of the inner cavity 302 and to the first opening 304 with the movement of the collar 305, thereby compressing the second rod 200 again. Thus, the second lever 200 is in a relatively stationary state with respect to the first lever 100, completing the adjustment of the length of the boom 1. At this time, the length of the boom 1 is the second length. Since the length of the second rod 200 outside the first rod 100 varies, the second length of the boom 1 is also different from the first length of the boom 1.

In the above adjustment process, the length of the second lever 200 outside the first lever 100 is adjusted as needed, not the fixed length, which greatly facilitates the user.

In one embodiment, as shown in fig. 3, the circumferential outer surface of the collar 305 forms a truncated cone, and the small end of the truncated cone faces the first opening 304. Thus, the large end of the truncated cone has a diameter greater than the diameter of the first opening 304, which prevents the collar 305 from accidentally falling out of the inner cavity 302. In other embodiments, collar 305 may have other shapes, such as having a cylindrical barrel and a radially outwardly extending shoulder, which are not described in detail herein. Furthermore, to facilitate sliding of the second rod 200 relative to the collar 305, the inner diameter of the collar 305 is slightly larger than the outer diameter of the second rod 200.

To facilitate movement of the collar 305 within the internal cavity 302 during adjustment of the length of the boom 1, the collar 305 preferably further comprises a sleeve 310 attached to the small end of the truncated cone, the sleeve 310 extending out of the housing 301 through the first opening 304, the second rod 200 slidably extending through the sleeve 310 (as shown in fig. 3). More preferably, as shown in fig. 3, a spring 311 is disposed in the inner cavity 302, a first end of the spring 311 presses the collar 305 on a side away from the first opening 304, and a second end of the spring 311 is fixed in the inner cavity 302.

Thus, when adjusting the length of the boom 1, the sleeve 310 may be pushed outside the housing 301 to move the collar 305 within the inner cavity 302 away from the first opening 304, and the ball 307 does not compress the second rod 200, while the spring 311 is in a compressed state. The second lever 200 can now be adjusted relative to the first lever 100. After adjusting the second rod 200 to the predetermined position, the sleeve 310 is released, the spring 311 drives the collar 305 to move again to the first opening 304, and the ball 307 also moves to the first opening 304 and presses the second rod. This facilitates movement of the collar 305 and ball 307 within the lumen 302, further facilitating the user's adjustment of the length of the boom 1. In one embodiment, the sleeve 310 is integrally formed with the collar 305.

As also shown in fig. 3, an annular plug 312 is disposed in the inner cavity 302 on a side away from the first opening 304. A second end of the spring 311 is fixed to the annular plug 312 and the second rod 200 slidably extends through a central aperture of the annular plug 312. In this manner, the degree of compression of the spring 311 may be adjusted by adjusting the position of the annular plug 312 within the interior cavity 302 to facilitate the user pushing the sleeve 310. In one embodiment, annular plug 312 is threadably coupled to inner cavity 302 to facilitate adjusting the position of annular plug 312.

A threaded connection port is provided on the second axial end 308 of the housing 301, at which the first rod 100 is screwed. Hereby, a detachable connection of the first rod 100 to the housing 301 is achieved, which facilitates the assembly and maintenance of the boom 1 by a user. In further embodiments, the first lever 100 may also be fixedly connected to the second axial end 308 of the housing 301, for example by welding.

Fig. 2 schematically shows a luminaire 2 according to an embodiment of the invention. The luminaire 2 comprises a lamp body 20 and a suspension bar 1 according to the above, the lamp body 20 being mounted on the second end 202 of the second rod 200 of the suspension bar 1, outside the first rod 100. The luminaire 2 as a whole forms a pendant. Since the length of the suspension rod 1 can be adjusted according to the requirement, the height of the lamp body 20 (or the lamp 2) can be adjusted according to the requirement. Although fig. 2 shows two booms 1, in practice there may be 1 boom 1, or there may be more booms 1.

The conductive path within the suspension bar 1 will be described below.

Fig. 4-6 schematically illustrate a first embodiment of conductive path 400 and conductive member 203. Conductive path 400 and conductive member 203 together form a part of the conductive path of lamp body 20.

As shown in fig. 4, a conductive path 400 is provided inside the first rod 100, a conductive member 203 electrically contacting the conductive path 400 is provided on the first end 201 of the second rod 200 within the first rod 100, and a conductive wire (not shown) electrically connected to the conductive member 203 is provided within the second rod 200. Conductive elements 203 remain electrically connected to conductive pathways 400 as second rod 200 moves axially relative to first rod 100. Thus, even if the length of the suspension lever 1 is adjusted, power supply to the lamp body 20 can be ensured.

In a preferred embodiment, conductive path 400 is a metal rail and conductive element 203 is a metal dome in sliding electrical contact with metal rail 400. As shown in fig. 5, a fixing seat 205 is further provided on the first end 201 of the second rod 200, and the fixing seat 205 includes a cylindrical body 206 and a slot 207 configured on a circumferential side wall of the cylindrical body 206. The metal dome 203 includes a plug portion 208 and a folded portion 209 connected to the plug portion 208. The insertion portion 208 is inserted into the slot 207 and electrically connected to the conductive wire, and the folded portion 209 is located radially outside the slot 207 and slidably contacts the metal rail 400 (as shown in fig. 6). The metal dome 203 is substantially U-shaped as a whole, so that the metal dome 203 can be stably mounted in the insertion groove 207. During the sliding of the second rod 200 relative to the first rod 100, the metal dome 203 is retained by the slot 207 without deviating from the metal guide rail 400, so that the metal dome 203 and the metal guide rail 400 are in stable electrical contact.

In a preferred embodiment, the number of the metal guide rails 400 is 3, and the metal guide rails are uniformly distributed in the circumferential direction, and the slots 207 and the metal elastic pieces 203 are distributed corresponding to the metal guide rails 400. This may facilitate a user in electrically connecting the metal rail 400 to an external power source.

Fig. 7 schematically shows a second embodiment of conductive path 400 and conductive elements 203. As shown in fig. 7, the conductive path 400 is an elastic conductive wire, such as a spiral conductive wire, disposed inside the first rod 100. The conductive member 203 is an electrical connector 210 disposed on the first end 201 of the second rod 200. The elastic conductive wire 400 is electrically connected with the electrical connector 210. Thus, when the second rod 200 is adjusted with respect to the first rod 100, the elastic conductivity 400 is elongated or compressed, thereby ensuring power supply to the lamp body 20.

As also shown in fig. 5, a terminal cover 110 is provided on the end of the first lever 100 remote from the locking lever 300, and the conductive path 400 is electrically connected to the terminal cover 110. The terminal cover 110 may include a terminal 111 and a cover 112. The conductive path 400 (e.g., a metal rail or an elastic conductive wire) is electrically connected to the connection terminal 111, and the connection terminal 111 is also electrically connected to an external power source.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A telescopic boom, comprising:

a first rod which is hollow, and

a second rod at least partially axially slidably disposed within the first rod,

the first rod is provided with a lock rod device, the lock rod device comprises a shell with an inner cavity, and the inner cavity is provided with a first opening and a second opening; the inner diameter of the inner cavity is gradually reduced towards the first opening,

the lantern ring is positioned in the inner cavity, a through hole is formed in the side wall of the lantern ring, a plurality of round beads are installed in the through hole, and the first rod is connected with the second opening of the shell; the second rod slidably extends through the lumen and the collar through the first opening, the collar being slidable in an axial direction of the second rod while the ball moves along a wall of the lumen and moves away from or compresses the second rod.

2. A telescopic boom according to claim 1, characterized in that the circumferential outer surface of the collar forms a truncated cone, and the small end of the truncated cone faces the first opening.

3. The telescopic boom of claim 2, wherein a plurality of said beads are evenly distributed in a circumferential direction.

4. A telescopic boom according to claim 3, wherein said collar further comprises a sleeve connected to a small end of said frustum cone, said sleeve extending through said first opening out of said housing, said second rod slidably extending through said sleeve.

5. A telescopic boom according to any of claims 2-4, wherein a spring is arranged in the inner cavity, a first end of the spring pressing against the collar on a side remote from the first opening, a second end of the spring being fixed in the inner cavity; an annular plug is arranged on one side, far away from the first opening, of the inner cavity, the second end of the spring is fixed to the annular plug, and the second rod extends through a central hole of the annular plug in a sliding mode.

6. A telescopic boom according to claim 5, characterized in that a threaded connection is provided on an end of the housing, the first rod being threaded at the threaded connection.

7. A telescopic boom according to claim 6, wherein an electrically conductive path is provided inside the first rod, an electrically conductive member is provided on a first end of the second rod inside the first rod in electrical contact with the electrically conductive path, an electrically conductive wire is provided inside the second rod in electrical connection with the electrically conductive member,

wherein the conductive member remains electrically connected to the conductive path upon axial movement of the second rod relative to the first rod.

8. The telescopic boom of claim 7, wherein the conductive path is a metal rail and the conductive member is a metal spring in sliding electrical contact with the metal rail.

9. A telescopic boom according to claim 8, further provided with a fixing seat on the first end of the second rod,

the fixing seat comprises a columnar body and a slot formed in the circumferential side wall of the columnar body, the metal elastic sheet comprises an insertion part and a folding part connected with the insertion part, the insertion part is inserted into the slot and is electrically connected with the conductive wire, and the folding part is located on the radial outer portion of the slot and is in sliding contact with the metal guide rail.

10. The telescopic boom of claim 9, wherein the number of the metal rails is 3 and the metal rails are evenly distributed in the circumferential direction, and the slots and the metal clips are distributed corresponding to the metal rails.

11. The telescopic boom of claim 7, wherein said conductive path is a resilient conductive wire disposed within said first rod, said conductive member is an electrical connector disposed on a first end of said second rod, said resilient conductive wire being electrically connected to said electrical connector.

12. The telescopic boom of claim 7, wherein a terminal end cap is provided on an end of the first rod distal from the locking bar means, the conductive path being electrically connected to the terminal end cap.

13. A luminaire comprising a lamp body and a telescopic suspension bar according to any one of the preceding claims 1 to 12,

the lamp body is mounted on a second end of the second rod outside the first rod.