CN110553188A

CN110553188A - Adjustable supporting beam for down lamp

Info

Publication number: CN110553188A
Application number: CN201910950774.3A
Authority: CN
Inventors: 管伟国; 孙利飞; 朱宏刚
Original assignee: SUZHOU RONGWEN COOPER LIGHTING SYSTEM CO Ltd
Current assignee: SUZHOU RONGWEN COOPER LIGHTING SYSTEM CO Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2019-12-10

Abstract

The invention discloses an adjustable supporting beam for a down lamp, which comprises a first supporting strip and a second supporting strip, wherein the upper edge and the lower edge of the first supporting strip are oppositely provided with first sliding grooves, the second supporting strip comprises a body and a plurality of guide pieces, the protrusions of the guide pieces are arranged on the body, a second sliding groove is formed between the guide pieces and the body, the guide pieces are arranged in the first sliding grooves in a sliding manner, and the side walls of the first sliding grooves are arranged in the second sliding grooves in a sliding manner. The invention has simple structure and ingenious design, the guide pieces are wrapped by the first brace, and the side wall of the first brace is wrapped by the second brace, so that the contact area between the first brace and the second brace is reduced, the precision requirements of the first brace and the second brace are reduced, and in addition, when the first brace and the second brace are pulled to the limit position, the two guide pieces can be ensured to support the first brace, and the strength of the support beam is ensured. Through the strengthening rib of sunken setting, when guaranteeing to increase guide piece intensity, do not influence a supporting beam's normal regulation.

Description

Adjustable supporting beam for down lamp

Technical Field

The invention relates to the field of lighting accessories, in particular to an adjustable supporting beam for a down lamp.

Background

As a common lighting device, a down lamp is widely used in office places, halls, markets, and the like, and is mainly installed by being embedded in a ceiling. In one structure, the shell of the down lamp is arranged on a supporting beam and is arranged on a ceiling through the supporting beam; since the fixed positions on the ceiling are different, the two installation points are sometimes close to each other and sometimes far from each other, and therefore, a support beam with an adjustable length is required. The existing market is generally of a full-wrapping type structure, namely one brace is inserted into the other brace, so that the precision requirement of the structure on the two braces is very high, and if the fit clearance between the two braces is too large, the brace can shake in use; if the two are interference fit, it is very difficult to operate when expanding or contracting.

Disclosure of Invention

aiming at overcoming the defects in the prior art, the invention mainly aims to overcome the defects in the prior art and discloses an adjustable supporting beam for a down lamp, which comprises a first brace and a second brace, wherein the upper edge and the lower edge of the first brace are oppositely provided with first sliding grooves, the second brace comprises a body and a plurality of guide pieces, the protrusions of the guide pieces are arranged on the body, a second sliding groove is formed between the guide pieces and the body, the guide pieces are arranged in the first sliding groove in a sliding manner, and the side wall of the first sliding groove is arranged in the second sliding groove in a sliding manner.

Further, reinforcing ribs are arranged on the guide sheets.

Further, the reinforcing ribs are formed by punching.

Further, the reinforcing rib is positioned on one side of the guide piece opposite to the first pulling strip and is inwards concave, and the other side of the guide piece is convex.

Furthermore, the reinforcing ribs are of a cross-shaped structure.

Furthermore, the second brace comprises a front section, a middle section and a rear section, wherein the front section is at least provided with two guide pieces, and the middle section and the rear end are respectively provided with at least one guide piece.

furthermore, a pre-broken line is arranged among the front section, the middle section and the rear section of the second brace.

Furthermore, the end of the first brace is provided with a lock tongue, and the end of the second brace is provided with a lock block matched with the lock tongue.

Further, the locking block is arranged between two adjacent guide pieces at one end of the second pulling strip.

Further, the body and the guide piece are of an integral structure.

The invention has the following beneficial effects:

The invention has simple structure and ingenious design, the guide pieces are wrapped by the first brace, and the side wall of the first brace is wrapped by the second brace, so that the contact area between the first brace and the second brace is reduced, the precision requirements of the first brace and the second brace are reduced, and in addition, when the first brace and the second brace are pulled to the limit position, the two guide pieces can be ensured to support the first brace, and the strength of the support beam is ensured. The reinforcing ribs are arranged in the concave mode, so that the strength of the guide piece is increased, and normal adjustment of the support beam is not influenced; meanwhile, the production steps are simplified, and the process can be completed only by stamping, so that the material consumption is further reduced.

Drawings

FIG. 1 is a schematic view of an adjustable support beam for a lamp cartridge according to the present invention;

FIG. 2 is a schematic view of a first brace construction;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is a schematic structural view of a second brace;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the mounting of the first and second braces;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

FIG. 8 is a schematic view showing the extreme positions of the support beam;

FIG. 9 is an enlarged view of A in FIG. 8;

FIG. 10 is a schematic view of an adjustable support beam for a downlight according to the present invention;

the reference numbers are as follows:

21. The first brace, 22, the second brace, 211, the first sliding groove, 212, the bolt, 221, the body, 222, the guide piece, 223, the second sliding groove, 224, the reinforcing rib, 225, the locking piece, 226, the middle section, 227, the rear section, 228, the pre-folding line, 229 and the front section.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

an adjustable supporting beam for a down lamp is shown in fig. 1-7 and comprises a first brace 21 and a second brace 22, wherein the upper edge and the lower edge of the first brace 21 are oppositely provided with a first sliding groove 211, the second brace 22 comprises a body 221 and a plurality of guide pieces 222 protruding from the body 221, a second sliding groove 223 is formed between the guide pieces 222 and the body 221, the guide pieces 222 are slidably arranged in the first sliding groove 211, and the side wall of the first sliding groove 211 is slidably arranged in the second sliding groove 223. It can be seen that the guide piece 222 corresponds to a supporting point of the first sliding groove 211, and the second sliding groove 223 corresponds to a supporting point of the side wall of the first bar 21, and the first bar 21 and the second bar 22 are drawn by the cooperation of the two. In addition, the contact area between the two is greatly reduced, and even if some positions cause interference fit due to accuracy problems, the sliding friction between each other is reduced due to the small contact area, and the drawing of the first and second braces 21 and 22 is not made difficult. Thereby reducing the accuracy requirements for the production of the first and second braces 21, 22.

In one embodiment, as shown in fig. 1-7, the guide tab 222 is provided with a stiffener 224. This can increase the strength of the guide piece 222. Wherein, the reinforcing rib 224 can be made by stamping, and through the structure, the material cost can be saved. Preferably, the reinforcing ribs 224 have a cross-shaped structure, thereby achieving an increase in the vertical and lateral strength of the guide pieces 222. Specifically, the reinforcing rib 224 is recessed inwardly at one side of the guide piece 222 opposite to the first bar 21 and is protruded at the other side. It is ensured that the mutual sliding between the first and second stays 21 and 22 is not affected while the guide piece 222 is added.

In one embodiment, as shown in FIGS. 1-7, the second brace 22 includes a front section 229, a middle section 226 and a rear section 227, the front section 224 having at least two guide tabs 222, the middle section 226 and the rear end 227 each having at least one guide tab 222. The two guide tabs 222 of the front section 229 support and guide the first brace 21 and ensure the strength and stability of the connection between the first brace 21 and the second brace 22 in the maximum extended position.

In a preferred embodiment, as shown in FIGS. 1-7, pre-break lines 228 are provided between the front 229, middle 226 and rear 227 sections of the second brace 22. The first pull strip 21 is also provided with a pre-broken line 228; when the distance between two points on the ceiling is small, the front sections of the first brace 21 and the second brace 22 extend out more, which may affect the normal use of other components; therefore, it is possible to prevent the end of the first brace 21 from protruding from the second brace 22 and prevent the end of the second brace 22 from protruding from the first brace 21 by connecting the front sections of the first brace 21 and the second brace 22.

in one embodiment, as shown in fig. 1-9, the end of the first bar 21 is provided with a locking tongue 212 and the end of the second bar 22 is provided with a locking block 225 that engages the locking tongue 212. The locking tongue 212 and the locking block 225 are matched with each other, so that after the locking tongue 212 and the locking block 225 are contacted, the first pulling strip 21 and the second pulling strip 22 cannot be unfolded continuously. When the first stay 21 and the second stay 22 are prevented from being unfolded, the first stay 21 and the second stay 22 are separated due to carelessness of a worker, so that the housing is accidentally dropped, and potential safety hazards exist. In a preferred embodiment, the lock 225 is disposed between two adjacent guide tabs 222 at one end of the second brace 22. Thus, when the latch 212 is in contact with the lock block 225, there are two guide tabs 222 that support the first pull strip 21. Thereby ensuring the connection strength and stability of the first brace 21 and the second brace 22 at the extreme positions.

in one embodiment, as shown in fig. 1-7, the body 221 and the guide piece 222 are of a unitary structure. Therefore, the use of materials can be reduced, one-step forming can be realized, and the production steps can be reduced; meanwhile, the rib 224 may be formed by direct punching by punching.

In use, as shown in fig. 1-10, the housing can be slidably disposed on the support beam to expand or contract the support beam to accommodate different installation requirements depending on the actual distance between the mounting points. Two ends of the supporting beam are respectively fixed on the ceiling through screws.

the above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides an adjustable supporting beam for down lamp, its characterized in that includes first brace and second brace, the relative first spout that sets up in the top and the lower side of first brace, the second brace includes that body and arch set up a plurality of guide piece on the body, the guide piece with form the second spout between the body, the guide piece slides and sets up in the first spout, the lateral wall of first spout slides and sets up in the second spout.

2. An adjustable support beam for a downlight as claimed in claim 1, wherein the guide plate is provided with a reinforcing rib.

3. An adjustable support beam for a downlight as claimed in claim 2, wherein the reinforcing ribs are formed by stamping.

4. An adjustable support beam for a downlight as set forth in claim 3 wherein the reinforcing ribs are recessed inwardly on the side of the guide tab opposite the first brace and are raised on the other side.

5. an adjustable support beam for a downlight as claimed in claim 2, wherein the reinforcing ribs are of a cross-shaped configuration.

6. An adjustable support beam for a downlight according to claim 1, wherein the second brace comprises a front section, a middle section and a rear section, the front section is provided with at least two of the guide pieces, and the middle section and the rear end are respectively provided with at least one guide piece.

7. an adjustable support beam for a downlight as claimed in claim 6, wherein pre-break lines are provided between the front section, the intermediate section and the rear section of the second stay.

8. an adjustable support beam for a downlight according to claim 1, wherein a lock tongue is arranged at the end of the first brace, and a lock block matched with the lock tongue is arranged at the end of the second brace.

9. An adjustable support beam for a downlight as set forth in claim 8 wherein the lock block is disposed between two adjacent guide tabs at one end of the second brace.

10. An adjustable support beam for a downlight as claimed in claim 1, wherein the body and the guide tab are of unitary construction.