Lamp

Abstract

The lamp comprises two shells and a lamp panel, one shell is provided with a light-transmitting area serving as a light-transmitting lampshade, one side of each shell is open, the openings of the two shells are opposite and connected in the vertical direction, and therefore a containing cavity used for installing the lamp panel is defined by the two shells. One sides of the two shells are rotationally connected through a rotating shaft, the axis of the rotating shaft extends in the transverse direction, the two shells are called the first shell and the second shell respectively, an arc-shaped rack is arranged on the first shell and located beside the rotating shaft, the rotating shaft is located at the circle center of the rack, and the rotating shaft is located at the circle center of the rack. And a tooth part meshed with the rack is arranged on the second shell. The tooth parts can be embedded in different tooth grooves of the racks, so that relative positioning between the two shells is achieved, that is, the two shells can be positioned and can be positioned at different rotating angles, namely, multi-gear positioning is achieved, and a maintainer can conveniently open the containing cavity to overhaul and maintain the lamp.

Description

Technical Field

[0001] This utility model relates to a lamp. Background Technology

[0002] Lighting fixtures, such as tri-proof lights, emergency lights, and ceiling lights, generally include a lamp housing and a lamp panel inside the lamp housing. The lamp housing includes an upper housing and a light-transmitting lampshade. The bottom of the upper housing is open, while the top of the light-transmitting lampshade is open. The two are fastened together to form a cavity for housing the lamp panel.

[0003] To facilitate lamp panel maintenance, the upper housing and the light-transmitting lampshade need to be movably connected to open the receiving chamber. For example, the Chinese utility model patent disclosed in patent application number CN202421203159.9 (publication number CN222278367U), entitled "A Lamp Fixture with Convenient Repair and Replacement of the Lampshade," features a power supply box with a cavity for installing the power supply and wiring. The lamp body houses the light source, which is connected to the power supply box for illumination. A heat sink is located on the back of the lamp body for heat dissipation. The lampshade is installed on the front of the lamp body via a pull-out structure, and this front is the light-emitting surface of the lamp body. The lamp body is rotatably connected to the power supply box via a rotary damping assembly, allowing the power supply box to be opened by rotating the lamp body.

[0004] This patent allows the power box to be opened by rotating the lamp body to handle power failures. However, the rotational damping combination between the lamp body and the power box only serves as a damping mechanism to prevent the lamp body from opening too quickly. It does not provide a secure positioning function for the lamp body. If the lamp body cannot be positioned relative to the power box when it is open, rotation will affect the staff's ability to handle power failures. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a lamp whose housing can be positioned at different rotation angles, in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a lamp, comprising two housings and a lamp plate, wherein one housing has a light-transmitting area as a light-transmitting lampshade, both housings are open on one side, and the openings of the two housings are vertically opposite and connected, thereby forming a receiving cavity for mounting the lamp plate, and one side of the two housings are rotatably connected by a rotating shaft, the axis of the rotating shaft extending laterally, characterized in that the two housings are respectively referred to as the first housing and the second housing, the first housing is provided with an arc-shaped rack, the rack is located beside the rotating shaft, and the rotating shaft is located at the center of the rack, and the second housing is provided with teeth that mesh with the rack.

[0007] To improve the stability of positioning between the two housings, the rack has two teeth arranged radially spaced along the axis of rotation, and the second housing has two teeth that mesh with the two racks respectively. This provides two-point positioning between the two housings, resulting in good positioning performance.

[0008] Preferably, the size of the tooth groove on the rack away from the rotating shaft is larger than the size of the tooth groove on the rack closer to the rotating shaft. The two racks with different tooth groove sizes cooperate to adjust the resistance when the housing rotates, preventing the housing from being too tight to rotate easily or too loose to rotate too fast.

[0009] Preferably, the spacing between the two racks forms a strip groove, and the second housing is provided with a guide post inserted into the strip groove. During the rotation of one of the housings around the pivot, a relative displacement occurs between the guide post and the strip groove. The cooperation between the strip groove and the guide post can guide and limit the rotation of the housing, preventing the housing from deviating during rotation.

[0010] Preferably, the ends of the two racks are integrally connected to form a closed annular structure, and the guide post can abut against both ends of the annular structure. Two racks are formed by providing toothed grooves on both side walls of an arc-shaped block, and a slot is formed on the arc-shaped block along its length direction. This not only facilitates the manufacture of two racks and the slot, but the annular structure also limits the travel of the guide post, preventing the guide post from coming out of the slot.

[0011] Preferably, the second housing is provided with two strips, which are located on the sides of two racks respectively. Each strip is provided with teeth that mesh with the corresponding rack. A slide is formed between the two strips to slide in a ring structure, so as to further guide the rotation trajectory of the housing.

[0012] To ensure smooth force distribution during rotation, both shells are elongated, with racks at both ends of the first shell along its length and corresponding teeth at both ends of the second shell along its length.

[0013] Compared with the prior art, the advantages of this utility model are: the two housings of this utility model are provided with a rack and teeth that mesh with the rack. The teeth can be embedded in different slots of the rack, thereby realizing the relative positioning between the two housings. That is to say, the two housings can not only be positioned, but also positioned at different rotation angles, i.e., multiple positioning positions, which makes it convenient for maintenance personnel to open the receiving chamber to inspect and maintain the lamp. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model (two shells enclosing a receiving chamber);

[0015] Figure 2 for Figure 1 A sectional view;

[0016] Figure 3 for Figure 2 A schematic diagram of the decomposition process;

[0017] Figure 4 This is a structural schematic diagram of an embodiment of the present utility model (the light-transmitting lampshade rotates to open the receiving chamber);

[0018] Figure 5 for Figure 4 A sectional view. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0021] Figures 1-5 A preferred embodiment of the lamp of this utility model is shown. The lamp includes two housings and a lamp plate 7. Both housings are open on one side, and the openings of the two housings are vertically opposite and connected, so that the two housings form a receiving cavity 0 for mounting the lamp plate 7. One housing has a light-transmitting area as a light-transmitting lampshade, and the other housing is an upper housing, which is mounted on an external mounting base such as a ceiling.

[0022] The lamp panel 7 includes a support plate 71 and a light source (such as a conventional LED light source) disposed on the support plate 71. In this embodiment, the support plate 71 is mounted on a light-transmitting lampshade. Of course, the support plate 71 can also be mounted on the upper housing. The structure of the lamp panel 7 is prior art and will not be described in detail here.

[0023] The two housings are rotatably connected on one side by a pivot 3. The axis of the pivot 3 extends laterally. The two housings are referred to as the first housing 1 and the second housing 2, respectively. In this embodiment, the first housing 1 is the upper housing and the second housing 2 is a light-transmitting lampshade.

[0024] from Figure 2 , 3As can be seen, the rotating shaft 3 is fixedly mounted on the second housing 2. The first housing 1 has a C-shaped shaft hole 11 for the rotating shaft to rotate. The opening of the shaft hole 11 is elastic. In its natural state, the size of the opening is smaller than the outer diameter of the rotating shaft 3. When the opening is squeezed by the rotating shaft 3, it will expand to allow the rotating shaft to pass through and enter and exit the shaft hole 11. Of course, the shaft hole 11 can also be a closed hole.

[0025] The first housing 1 has an arc-shaped rack 40 located beside the rotating shaft 3, with the rotating shaft 3 at the center of the rack 40. The second housing 2 has teeth 61 that mesh with the rack 40. The teeth 61 can be fitted into different slots of the rack 40, thereby achieving relative positioning between the two housings. In other words, the two housings can not only be positioned but also positioned at different rotation angles, i.e., multiple positioning positions, which facilitates maintenance personnel to open the receiving chamber 0 to inspect and maintain the lamp.

[0026] In this embodiment, there are two racks 40 arranged radially spaced along the shaft 3, and the second housing 2 is provided with two toothed portions 61 that mesh with the two racks 40 respectively. In addition, the size of the tooth groove on the rack 40 farther from the shaft 3 is larger than the size of the tooth groove on the rack 40 closer to the shaft 3. "Size" refers to the width and height of the tooth groove, that is, the width and height of the tooth groove on the rack 40 farther from the shaft 3 are both larger than the tooth groove on the rack 40 closer to the shaft 3.

[0027] The cooperation of the two racks 40 and the two teeth 61 enables two-point positioning between the two housings, resulting in good positioning effect. Furthermore, because the outer side (i.e. the side away from the rotating shaft 3) experiences greater force, the tooth groove on the rack 40 away from the rotating shaft 3 is larger. In this way, the two racks 40 with different sizes cooperate with each other to adjust the resistance when the housing rotates, preventing the housing from being too tight to rotate easily or too loose to rotate too fast.

[0028] The spacing between the two racks 40 forms a strip groove 41. The second housing 2 is provided with a guide post 21 inserted into the strip groove 41. During the rotation of one of the housings around the pivot 3, a relative displacement occurs between the guide post 21 and the strip groove 41. In actual use, because the first housing 1 is installed on the ceiling, the second housing 2 rotates. The cooperation between the strip groove 41 and the guide post 21 can guide and limit the rotation of the second housing 2, preventing it from deviating during rotation.

[0029] from Figure 2 , 5As can be seen, in this embodiment, the ends of the two racks 40 are integrally connected to form a closed annular structure 4, and the guide post 21 can abut against both ends of the annular structure 4. In this way, two racks 40 are formed by setting grooves on both side walls of an arc-shaped block, and a slot is formed on the arc-shaped block along its length direction to form a strip groove 41. This not only facilitates the manufacture of two racks 40 and strip groove 41, but the annular structure also limits the guide post 21 and prevents the guide post 21 from coming out of the strip groove 41.

[0030] In this embodiment, the second housing 2 is provided with two strip-shaped bodies 6. Both strip-shaped bodies 6 are installed on the first housing 1 by screws. The two strip-shaped bodies 6 are located on the sides of the two racks 40 respectively. Each strip-shaped body 6 is provided with a tooth 61 that meshes with the corresponding rack 40. A slide 60 is formed between the two strip-shaped bodies 6 to slide in cooperation with the annular structure 4, further guiding the rotation trajectory of the housing.

[0031] In order to ensure that the force is stable when the shell rotates, both shells are elongated. The first shell 1 has racks 40 at both ends in the length direction, and the second shell 2 has teeth 61 at both ends in the length direction.

[0032] If the two housings are connected on only one side by a pivot, rack 40, and tooth 61, the other side is easy to detach. Therefore, the other side of the two housings can be detachably connected by a connector, which can be a screw, a snap-fit, or a magnetic attraction.

[0033] When the lamp in this embodiment needs maintenance, first release the constraint of the connector on the two housings, and then rotate one of the housings, such as the light-transmitting lampshade. During the rotation, the tooth 61 will mesh with different grooves on the rack 40. The housing can be opened at a suitable angle as needed, and because the tooth 61 meshes with the rack 40, the two housings are positioned relative to each other.

[0034] In this embodiment, "horizontal" and "vertical" refer to the direction in which the light fixture is installed on an external mounting base, such as a ceiling. The accompanying drawings in this embodiment's specification are also relevant. Figure 1 The direction shown is the same as when the light fixture is installed on the ceiling.

Claims

1. A lamp fixture comprising two housings and a lamp plate (7), wherein one housing has a light-transmitting area serving as a light-transmitting lampshade, both housings having an opening on one side, and the openings of the two housings being vertically opposite and connected, thereby forming a receiving cavity (0) for mounting the lamp plate (7), and one side of the two housings being rotatably connected by a pivot (3), the axis of the pivot (3) extending laterally, characterized in that, The two housings are referred to as the first housing (1) and the second housing (2), respectively. The first housing (1) is provided with an arc-shaped rack (40), which is located on the side of the rotating shaft (3) and the rotating shaft (3) is located at the center of the rack (40). The second housing (2) is provided with teeth (61) that mesh with the rack (40).

2. The lamp according to claim 1, characterized in that: The rack (40) has two racks that are radially spaced along the shaft (3), and the second housing (2) has two teeth (61) that mesh with the two racks (40) respectively.

3. The lamp according to claim 2, characterized in that: The size of the tooth groove on the rack (40) away from the rotating shaft (3) is larger than the size of the tooth groove on the rack (40) closer to the rotating shaft (3).

4. The lamp according to claim 2, characterized in that: The distance between the two racks (40) forms a strip groove (41). The second housing (2) is provided with a guide post (21) inserted in the strip groove (41). During the rotation of one of the housings around the pivot (3), a relative displacement occurs between the guide post (21) and the strip groove (41).

5. The lamp according to claim 4, characterized in that: The ends of the two racks (40) are integrally connected to form a closed annular structure (4), and the guide post (21) can abut against the two ends of the annular structure (4).

6. The lamp according to claim 5, characterized in that: The second housing (2) is provided with two strips (6), which are located on the sides of the two racks (40). Each strip (6) is provided with a tooth (61) that meshes with the corresponding rack (40). A slide (60) is formed between the two strips (6) to slide in cooperation with the annular structure (4).

7. The lamp according to any one of claims 1 to 6, characterized in that: Both of the housings are elongated, with racks (40) provided at both ends of the length direction of the first housing (1), and correspondingly, teeth (61) provided at both ends of the length direction of the second housing (2).

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