A self-locking and rebounding spring mechanism and a lighting device provided with the same

Abstract

A self-locking and rebounding spring mechanism and a lighting device provided with the same, the base is provided with symmetrical limiting grooves on both sides; spring fixing supports are symmetrically arranged on the base, and upwardly inclined sliding grooves are symmetrically arranged on the upper portions of the spring fixing supports; rolling shafts are arranged in the sliding grooves; spring bottoms are hingedly connected to the spring fixing supports, and the two side rods form narrow sections and wide sections respectively, which are smaller and larger than the length of the rolling shafts; rotating shafts are hingedly connected to the spring fixing supports, the outer arms of the rotating shafts extend out of the limiting grooves of the spring fixing supports and the base, the inner arms of the rotating shafts are matched with the rolling shafts, and when the rotating shafts rotate, the inner arms push the rolling shafts to move along the sliding grooves, so that the limited spring is released and rebounds downward to be positioned; reset springs are hooked between the inner arms and the base, and the self-locking and rebounding structure is simple and convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lighting, and more particularly to a spring mechanism capable of self-locking and rebounding and a lighting device provided with the same. BACKGROUND

[0002] The existing lighting device, such as a downlight, has a mounting structure as shown in the accompanying drawings. Figure 1 When installing the lighting device, the installer needs to use both hands to hold the spring and put the spring into the mounting hole in the ceiling, which is relatively complicated and difficult for the installer to operate on the ceiling. SUMMARY

[0003] The present application aims to solve the above problems in the prior art and provide a spring mechanism capable of self-locking and rebounding and a lighting device provided with the same.

[0004] To achieve the above object, the technical solution of the present application is as follows.

[0005] The spring mechanism capable of self-locking and rebounding comprises a base, a spring fixing bracket, a rolling shaft, a spring, a rotating shaft and a reset spring, which are matched with each other. The base is provided with a limiting groove on each side thereof. The spring fixing bracket is symmetrically arranged on the base and is provided with a hinge shaft between the outer side and the inner wall of the spring fixing bracket. The spring is a frame structure, and the bottom of the spring is hingedly connected to the hinge shaft on each outer side of the spring fixing bracket. The rotating shaft is hingedly connected to the hinge shaft between the inner wall of the spring fixing bracket. The reset spring is hooked between the inner arm of the rotating shaft and the base.

[0006] Further, the spring fixing bracket is a bracket body with a U-shaped plate structure, and the bottom of the bracket body is fixed to the bottom plate of the base. The top of the bracket body is open. The two outer sides of each bracket body are respectively provided with a hinge shaft. The two sliding grooves are arranged on the two side walls of the bracket body.

[0007] Further, the rolling shaft is a stepped shaft with small ends and a large middle part. The two ends of the rolling shaft are respectively accommodated in the sliding groove.

[0008] Further, the spring is a door frame type structure which is bent from a cylindrical rod, and the bottom of the two sides is formed into a spring shape and is hinged on the hinge shaft one respectively, the top spans above the frame body, and the rod of the two sides is bent near the bottom to form a narrow section to block the rolling shaft, and a wide section is formed near the middle part to be separated from the rolling shaft.

[0009] Further, the rotating shaft is two plate type structure members, the middle part is formed into a hinge part and is hinged on the hinge shaft two, and the two sides are respectively formed into an outer arm and an inner arm.

[0010] Further, the bottom of the spring is fixed on the bottom plate of the base, and the top is hooked on the hook of the lower part of the inner arm of the rotating shaft.

[0011] Further, the lighting device provided with the self-locking and rebounding spring mechanism is installed, the base is the rear cover of the lighting device, the rear cover is installed on the lighting device body, and the rear cover and the lighting device body are positioned in the mounting hole through the self-locking and rebounding spring mechanism.

[0012] By adopting the technical scheme, compared with the prior art, the problem that the construction worker bends the spring with both hands on the ceiling can be solved, the product is connected, the spring is bent to the top, the self-locking mechanism locks the spring, the spring is in a fixed state, at this time, the down lamp can be installed into the ceiling mounting hole with one hand, the down lamp collides with the ceiling to trigger the spring rebounding mechanism, the spring rebounds, and the down lamp is normally fixed on the ceiling.

[0013] Through the spring self-locking and rebounding mechanism, the construction worker can operate with one hand, easily installs the product into the ceiling, and the construction worker can operate the lighting fixture with one hand and holds the safe area with the other hand to ensure personal safety. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a prior art structure schematic diagram of the present application;

[0015] Figure 2 It is a normal state schematic diagram of the spring of the present application;

[0016] Figure 3 It is a self-locking state schematic diagram of the spring of the present application;

[0017] Figure 4 It is an installation schematic diagram of the present application Figure 1 ;

[0018] Figure 5 It is an installation schematic diagram of the present application Figure 2 ;

[0019] Figure 6 It is an installation schematic diagram of the present application Figure 3 ;

[0020] Figure 7 It is an internal structure schematic diagram of the normal state of the spring of the present application;

[0021] Figure 8 is the internal structure diagram of the spring self-locking state of the present application;

[0022] Figure 9 is the internal structure diagram of the spring disengaging state of the present application;

[0023] Figure 10 is the front view diagram of the spring fixed state of the present application;

[0024] Figure 11 is the front view diagram of the spring disengaging state of the present application;

[0025] Figure 12 is the front view diagram of the spring of the present application. DETAILED DESCRIPTION

[0026] In order to further explain the technical solutions of the present application, the present application will be described in detail through specific embodiments.

[0027] As shown in Figures 2-12 , a spring mechanism capable of self-locking and rebounding comprises a base 1, a spring fixing support 2, a rolling shaft 3, a spring 4, a rotating shaft 5, and a reset spring 6 which cooperate with each other; wherein the base 1 is symmetrically provided with limiting grooves 11 on both sides; the spring fixing support 2 is symmetrically arranged on the base 1, and a hinge shaft is respectively arranged between the outer sides and the inner cavity wall, and an upwardly inclined sliding groove 21 is symmetrically arranged on the upper part; the rolling shaft 3 is arranged in the sliding groove 21 and moves along the sliding groove; the spring 4 is a door frame type structure, the bottom part is respectively hinged to the hinge shafts on both outer sides of the spring fixing support, a narrow section 41 is formed between the two side rods at the lower part, and a wide section 42 is formed at the upper part, the length of the narrow section 41 is less than the length of the rolling shaft 3, and the length of the wide section 42 is greater than the length of the rolling shaft 3; the rotating shaft 5 is respectively hinged to the hinge shafts between the inner cavity walls of the spring fixing support, the rotating shaft 5 is respectively provided with an outer arm 51 and an inner arm 52 on both sides, the outer arm 51 extends out of the limiting grooves 11 of the spring fixing support 2 and the base 1, the inner arm 52 cooperates with the rolling shaft 3, when the rotating shaft 5 rotates, the inner arm 52 drives the rolling shaft 3 to move along the sliding groove 21, thereby disengaging the limited spring 4 and making it rebound downward and position; the reset spring 6 is hooked between the inner arm 52 and the base 1.

[0028] In a specific embodiment, the spring fixing support 2 is a U-shaped plate structure, the bottom is fixed on the bottom plate 12 of the base 1, the top is open, each support has a hinge shaft 1 22 on the two outer sides, and another hinge shaft 2 23 is arranged between the two inner sides; two sliding grooves 21 are arranged on the two side walls of the support, the sliding grooves are symmetrically inclined upward and penetrate the two side walls, and the top of the sliding groove forms a straight section 211. The rolling shaft 3 is a stepped shaft with small ends and a large middle part, and the two ends are respectively accommodated in the sliding groove 21. The spring 4 is a door frame structure formed by bending a cylindrical rod, the two bottom parts 43 are hinged on the hinge shaft 1 22 in a spring shape, the top part 44 is horizontally arranged above the support, the two rod bending parts near the bottom form a narrow section 41 to block the rolling shaft 3, and the two rod bending parts near the middle part form a wide section 42 to be separated from the rolling shaft 3. The rotating shaft 5 is a plate structure, a hinge part 53 is arranged in the middle and hinged on the hinge shaft 2 23, and an outer arm 51 and an inner arm 52 are respectively formed on the two sides.

[0029] The above structure can be used in various products. The present application takes a lighting device tube lamp as an example. The tube lamp with the self-locking and rebounding spring mechanism is installed. The base 1 is the rear cover of the lighting device. The rear cover is installed on the lighting device body 7. The rear cover and the lighting device body 7 are positioned in the installation hole 8 through the self-locking and rebounding spring mechanism.

[0030] As Figures 2-6 The installation schematic diagram of the present application is shown in the figure. In the normal state, the spring naturally droops on the two sides of the tube lamp body. Before installation, the spring is pulled upward to the bottom. The narrow section of the spring is clamped by the two sides of the rolling shaft, forming a self-locking mechanism to prevent the spring from rebounding. In the self-locking state of the spring, the spring is inserted into the installation hole. Since the outer arm of the rotating shaft is larger than the installation hole, the outer arm of the rotating shaft is touched during the installation process to make the rotating shaft rotate around the shaft center. During the rotating process, the inner arm pushes the rolling shaft upward along the sliding groove to the position where the spring is separated from the rolling shaft to make the spring rebound. The spring is installed in place and clamped on the upper wall of the installation hole.

[0031] The present application solves the problem that the construction worker has to bend the spring with both hands on the ceiling. After the product is connected, the spring is bent to the top. The self-locking mechanism locks the spring. The spring is in a fixed state. At this time, the tube lamp can be installed into the ceiling installation hole with one hand. The tube lamp touches the ceiling to trigger the spring rebounding mechanism. The spring rebounds. The tube lamp is normally fixed on the ceiling.

[0032] Through the spring self-locking and rebounding mechanism, the construction worker can operate with one hand. The product is easily installed into the ceiling. The construction worker can operate the lamp with one hand and hold the safety area with the other hand to ensure personal safety. The structure is simple and the operation is convenient.

[0033] The foregoing description has shown and described preferred embodiments of the application, but it will be understood that the application is not limited to the particular embodiments shown and described, as such will have many modifications, permutations, additions and subtractions and changes thereof, as will be apparent to those skilled in the art. It is therefore contemplated to cover in the appended claims all such changes and modifications that come within the scope of the application.

Claims

1. A self-locking and spring-rebounding spring mechanism, characterized in that, The system includes a base, a spring fixing bracket, a rolling shaft, a spring, a rotating shaft, and a return spring that cooperate with each other. The base has symmetrically arranged limiting grooves on both sides. The spring fixing bracket is symmetrically arranged on the base, with hinges on its two outer sides and between its inner cavity walls, and symmetrically arranged upward-sloping sliding grooves on its upper part. The rolling shaft is placed within the sliding groove and moves along it. The spring has a door frame structure, with its bottom hinged to the two outer hinges of the spring fixing bracket. A narrow section is formed at the bottom between the two sides, and a wide section is formed at the top. The length of the narrow section is less than the length of the rolling shaft, and the length of the wide section is greater than the length of the rolling shaft. The rotating shaft is hinged to the hinges between the inner cavity walls of the spring fixing bracket. The rotating shaft has an outer arm and an inner arm on each side. The outer arm extends beyond the limiting grooves of the spring fixing bracket and the base, and the inner arm cooperates with the rolling shaft. When the rotating shaft rotates, the inner arm moves the rolling shaft along the sliding groove, disengaging the limiting spring and causing it to spring back downwards for positioning. The return spring is hooked between the inner arm and the base. The spring fixing bracket consists of two U-shaped plate structures, with the bottom fixed to the base plate and the top open. Each frame has a hinge pin on its two outer sides and another hinge pin connecting the two inner side walls. Two slide rails are respectively set on the two side walls of the frame, and the slide rails are symmetrically inclined upward through the two side walls, with a straight section formed at the top of each slide rail. The rolling shaft is a stepped shaft that is small at both ends and large in the middle, with both ends housed in grooves.

2. The self-locking and rebounding spring mechanism as described in claim 1, characterized in that: The spring is a door frame-shaped structure formed by bending a cylindrical rod. The bottom sides are formed into spring shapes and are respectively hinged to the hinge shaft. The top spans across the frame. The rods on both sides are bent near the bottom to form a narrow section that blocks the rolling shaft, and a wide section near the middle that is separated from the rolling shaft.

3. The self-locking and rebounding spring mechanism as described in claim 1, characterized in that: The pivot consists of two plate-shaped structural components, with a hinge in the middle that is hinged to the second pivot, and outer and inner arms extending outwards on both sides respectively.

4. The self-locking and rebounding spring mechanism as described in claim 1, characterized in that: The bottom of the spring is fixed to the base plate, and the top is hooked onto the hook at the bottom of the inner arm of the rotating shaft.

5. A lighting device equipped with a self-locking and rebounding spring mechanism as described in any one of claims 1-4, characterized in that: The base is the back cover of the lighting equipment. The back cover is installed on the lighting equipment body. The back cover and the lighting equipment body are installed and positioned in the mounting hole by a self-locking and spring-loaded mechanism.

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