CN106352305B

CN106352305B - Limiting structure of lamp dimming mechanism

Info

Publication number: CN106352305B
Application number: CN201610771334.8A
Authority: CN
Inventors: 丁骏骅; 陆晔峰; 戴公望; 戚育非; 俞刚; 曹志强
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2020-02-18
Anticipated expiration: 2036-08-30
Also published as: CN106352305A

Abstract

The invention relates to a limiting structure of a lamp dimming mechanism in the field of lamp installation, which adopts the technical scheme that: the upper part of the light adjusting nut is fixed with a square structure with two hollowed ends, two rectangular cards are arranged in the square structure, and the cards are oppositely arranged to form a splayed structure; one end of the limiting screw is a round head, the diameter of the round section of the round head is larger than the diameter of the rod body of the limiting screw, the round head penetrates through the small openings of the splayed structure, the distance between the small openings is smaller than that of the round head, and the round head is clamped in a one-way mode to be prevented from moving towards the direction of the large opening; the other end of the limiting screw is fixed on the lamp body; the limiting screw and the metal dimming screw are arranged in parallel. The implementation is simple, the cost is low, and the technical problem that the metal dimming screw in the lamp is short of the dimming limiting structure can be effectively solved.

Description

Limiting structure of lamp dimming mechanism

Technical Field

The invention relates to the field of lamp installation, in particular to a structure of internal parts of a lamp.

Background

At present, in the installation of a lamp dimming mechanism, a dimming nut is generally fixed on a fixed support of a lamp light source, and a metal dimming screw passes through the dimming nut and rotates to drive the dimming nut to move so as to enable the lamp light source to move back and forth. However, due to the manufacturing process of the metal dimming screw, the head of the metal dimming screw does not have a limiting function, so that the metal dimming screw can be separated from the dimming nut when the moving stroke of the dimming nut exceeds the thread stroke of the metal dimming screw during the rotation process of the metal dimming screw. Under the effect of not having the external force, adjust luminance the nut and can't get back to the screw thread region of metal adjusting luminance screw by oneself, the inefficacy phenomenon of adjusting luminance can appear in lamps and lanterns this moment.

Disclosure of Invention

The invention aims to provide a limiting structure of a lamp dimming mechanism, which is simple to implement and low in cost, can effectively solve the technical problem that a metal dimming screw in a lamp is lack of a dimming limiting structure, and improves the performance of a product.

The technical scheme of the invention is as follows: a limit structure of a lamp dimming mechanism is characterized in that a dimming nut is fixed on a fixed support of a lamp light source, one end of a metal dimming screw is fixed on a lamp body of a lamp, the other end of the metal dimming screw penetrates through the dimming nut, a backstop structure is fixed on the upper portion of the dimming nut and is a square structure with two hollowed ends, two rectangular clamping pieces are arranged inside the square structure and are oppositely arranged to form a splayed structure, a large opening of the splayed structure is connected with a non-hollowed surface of the square structure, and a small opening of the splayed structure extends into a cavity of the square structure; one end of the limiting screw is a round head, the diameter of the round section of the round head is larger than the diameter of the rod body of the limiting screw, the round head penetrates through the small openings of the splayed structure, the distance between the small openings is smaller than that of the round head, and the round head is clamped in a one-way mode to be prevented from moving towards the direction of the large opening; the other end of the limiting screw is fixed on the lamp body; the limiting screw and the metal dimming screw are arranged in parallel.

In the invention, the retaining structure is a structure on the dimming nut and is integrated with the dimming nut. Two rectangular cards are arranged inside the stopping structure to form a splayed structure, when the limiting screw is installed from a large opening of the splayed structure, the cards can deform in the axial direction of the limiting screw along the direction perpendicular to the axial direction of the limiting screw by taking the root of the card as an axis, and the circular head of the limiting screw is convenient to install into the stopping structure. After the round head of the limiting screw enters the small opening of the splayed structure, the two cards restore to the original state from the elastic deformation state, so that the limiting screw can be clamped and prevented from sliding out in the direction away from the extending direction.

Because the limit screw and the metal dimming screw are arranged in parallel, when the metal dimming screw rotates, the dimming nut moves back and forth through the rotation of the threads when the metal dimming screw rotates. Within the light modulation scope that lamps and lanterns allowed, within the moving range of the nut of adjusting luminance along the metal adjusting luminance screw fore-and-aft direction promptly, the card of the splayed of the backstop structure of stop screw's circular head and the nut of adjusting luminance does not take place the effect, can be along the both ends fretwork direction back-and-forth movement of square backstop structure.

When the lamp is dimmed and adjusted to exceed the dimming range, the circular head of the limiting screw is contacted with the splayed card in the stopping structure of the dimming nut, and the dimming nut cannot move continuously due to the fact that the size of the splayed head formed by the card is smaller than that of the circular head of the limiting screw, so that the dimming limiting effect of the lamp is achieved.

The invention has the beneficial effects that: the technical problem that a metal dimming screw in a lamp is short of a dimming limiting structure can be effectively solved, the performance of a product is improved, and resources are saved.

Drawings

Fig. 1 shows the normal positions of the dimming nut and the metal dimming screw in the prior art.

Fig. 2 shows a disengaged position of the dimming nut and the metal dimming screw according to the prior art.

Fig. 3 is a schematic diagram of the technical solution of the present invention.

Fig. 4 is a schematic view of a limit screw.

Figure 5 is a cross-sectional view of the rounded head of the limit screw.

Fig. 6 is a schematic layout of the parking structure.

FIG. 7 is a cross-sectional view of a stop-back structure.

Detailed description of the preferred embodiments

As shown in fig. 1, in the prior art, a light adjusting nut 2 is generally fixed on a fixed bracket of a light source of a lamp, and a metal light adjusting screw 1 passes through the light adjusting nut 2 and is rotated to drive the light adjusting nut to move, so that the light source of the lamp moves back and forth. However, since there is no limit function, as shown in fig. 2, the metal dimming screw 1 may be separated from the dimming nut during the movement.

Fig. 3 is a schematic diagram of the technical solution of the present invention. The light adjusting nut 2 is fixed on a fixed support of a light source of the lamp, one end of the metal light adjusting screw 1 is fixed on a lamp body of the lamp, the other end of the metal light adjusting screw penetrates through the light adjusting nut 2, and the upper portion of the light adjusting nut 2 is fixed with the retaining structure 5. As shown in fig. 6 and 7, the retaining structure 5 is a square structure with two hollowed ends, two rectangular cards 6 are arranged inside the square structure, the cards 6 are oppositely arranged to form a structure shaped like a Chinese character 'ba', a large opening of the structure shaped like a Chinese character 'ba' is connected with a non-hollowed surface of the square structure, a small opening of the structure shaped like a Chinese character 'ba' extends into a cavity of the square structure, namely, the bottom of the card is connected with the square structure, and the other three surfaces are not connected with the inside of the square structure; as shown in fig. 4, one end of the limit screw 4 is a round head 7, and the cross section of the round head 7 is shown in fig. 5. As shown in fig. 3, the diameter of the circular section of the circular head is larger than the diameter of the rod body of the limit screw 4, the circular head passes through the small openings of the splayed structure, the distance between the small openings is smaller than that of the circular head, and the circular head is clamped in a one-way manner to prevent the circular head from moving towards the direction of the large opening; the other end of the limit screw 4 is fixed on the lamp body 8 through the lamp body side structure 3; the limit screw 4 is arranged in parallel with the metal dimming screw 1. The lamp body side structure 3 in fig. 3 is only one schematic, and in the real engineering, the other end of the limit screw can be fixed with the lamp body by any existing method.

The above detailed description of one embodiment of the present invention is provided for a person skilled in the art, and the specific implementation and application range may be changed according to the idea of the embodiment. In summary, the content of the present specification should not be construed as limiting the present invention, and any modification made according to the design concept of the present invention is within the scope of the present invention.

Claims

1. The utility model provides a limit structure of lamps and lanterns mechanism of adjusting luminance, dimming nut (2) are fixed on the fixed bolster of lamps and lanterns light source, metal dimming screw (1) one end is fixed on the lamp body of lamps and lanterns, and the other end passes dimming nut (2), its characterized in that:

a backstop structure (5) is fixed on the upper part of the dimming nut (2), the backstop structure (5) is a square structure with two hollowed ends, and the backstop structure (5) moves synchronously when the dimming nut (2) moves back and forth along the metal dimming screw (1);

two rectangular cards (6) are arranged in the square structure, the cards (6) are elastic pieces and are oppositely arranged to form a splayed structure, a large opening of the splayed structure is connected with a non-hollowed-out surface of the square structure, and a small opening of the splayed structure extends into a cavity of the square structure;

one end of the limit screw (4) is a round head, the diameter of the round section of the round head is larger than the diameter of the rod body of the limit screw (4), the distance between the small openings is smaller than that of the round head, the round head supports and pushes the clamping piece (6) to enable the clamping piece to deform and penetrate through the small opening of the splayed structure, the round head is clamped in a one-way mode, the round head is prevented from being separated from the small opening and moving towards the direction of the large opening when the retaining structure (5) moves along with the dimming nut (2) synchronously, and therefore the moving range of the retaining structure is limited between the round head and the lamp body to conduct dimming limit; the other end of the limit screw (4) is fixed on the lamp body through a lamp body side structure (3); the limiting screw (4) and the metal dimming screw (1) are arranged in parallel.