Rotating structure and lamp

Abstract

The utility model discloses a rotating structure and a lamp, the rotating structure comprises a first base body and a second base body which are rotatably connected, and the rotating structure further comprises a rotating part rotatably arranged in the second base body; the rotating part comprises a gear which is fixed with the first base body and rotates synchronously with the first base body; the limiting part can be linearly and movably arranged in the second base body relative to the second base body; the limiting part comprises elastic teeth, and the elastic teeth are arranged on the side face of the gear and keep the tendency of being meshed with the gear so as to be used for braking the gear. Compared with the prior art, the utility model has the advantages that the first base body and the second base body are rotationally connected, so that the rotary support is stable, the positioning is accurate, the elastic teeth and the gear are kept meshed, and the problem of loose teeth caused by meshing between two radial surfaces is avoided; and the relative positions of the first base body and the second base body can be fixed when the first base body and the second base body do not need to rotate through stable braking, and looseness is avoided.

Description

Technical Field

[0001] The utility model relates to a lighting device, in particular to a rotating structure and a lamp using the rotating structure. Background Art

[0002] As a lighting tool, lamps come in many different types depending on where they are used. Work lights are a common type of lighting fixture, and there are many different types, including floodlights and panel lights. Work lights not only provide illumination but also serve a decorative purpose. They are commonly used in various workplaces, such as offices, workshops, workbenches, outdoor areas, and underground, to provide lighting for people working.

[0003] Work lights used in workplaces often need to be able to adjust the illumination direction of the lamp as needed. For example, the Chinese patent application number 201921188385.3 of the present applicant discloses a reliable rotation mechanism, which includes a mounting assembly fixed to a first base body, a rotating part rotatably connected to the mounting assembly and fixed to a second base body, and a positioning part capable of rotationally positioning the rotating part. The rotating part can achieve 360° rotation around the mounting assembly with the cooperation of the positioning part. A lamp using this rotation mechanism can adjust the illumination direction of the lamp body as needed, but its opening is adjacent to the seam between the two shells, resulting in a certain gap at the rotation position and poor waterproof performance.

[0004] Another example is the Chinese patent application number 202210993979.1 of the present applicant, which discloses a rotating mechanism and a working light thereof. The mechanism is disposed between a first component and a second component and includes a first toothed disc, a second toothed disc, and an elastic member. The first toothed disc is disposed on the first component, the second toothed disc is disposed on the second component, and the first and second toothed discs are disposed opposite each other. Matching protruding teeth are circumferentially disposed on the opposing end surfaces of the first and second toothed discs, and the elastic member has a tendency to axially press the first and second toothed discs toward each other. A lamp using this rotating mechanism can also adjust the illumination direction of the lamp body as needed, but its rotational stability is poor, and the protruding teeth are used for positioning, which is prone to slippage.

[0005] Therefore, there is room for further improvement. Utility Model Content

[0006] The first technical problem to be solved by the present invention is to provide a rotating structure to improve stability in view of the deficiencies in the above-mentioned prior art.

[0007] The second technical problem to be solved by the present invention is to provide a lamp having the above-mentioned rotating structure.

[0008] The technical solution adopted by the present invention to solve the first technical problem is: a rotating structure, comprising a first base body and a second base body rotatably connected, characterized in that: the rotating structure further comprises:

[0009] a rotating portion rotatably disposed within the second base body; the rotating portion includes a gear fixed to the first base body and rotating synchronously; and

[0010] The limiting portion is arranged in the second base body so as to be linearly movable relative to the second base body; the limiting portion includes spring teeth, which are arranged on the side of the gear and maintain a tendency to engage with the gear, thereby being used to brake the gear.

[0011] By rotatably connecting the first base body and the second base body, the rotational support is stable, and the relative rotation and positioning between the two are achieved by the cooperation of the gear and the spring tooth. The gear and the second base body are fixed and accurately positioned, and the spring tooth engages with the side of the gear, and the spring tooth and the gear remain engaged, avoiding the problem of tooth slippage caused by the engagement between the two radial surfaces. Stable braking can be achieved to fix the relative position of the first base body and the second base body when no rotation is required, and no loosening will occur.

[0012] In order to further improve the stability of the rotating connection, the first base body includes a mounting portion installed with the gear, and the mounting portion includes a first part and a second part. A through-hole is provided on the second base body, and the second part passes through the through-hole and partially enters the second base body. The second part rotates with the second base body at the through-hole, and the first part is connected to the gear so that the mounting portion and the gear rotate synchronously.

[0013] Furthermore, to facilitate the synchronous rotation of the mounting part and the gear, a first groove is formed on the side of the gear facing the mounting part, and the shape and size of the first part are respectively adapted to the first groove. The first part is inserted into the first groove, so that the gear and the mounting part rotate synchronously.

[0014] In order to prevent the gear from being separated from the mounting portion and to facilitate limiting the movement trajectory of the spring tooth, a second groove is formed in the second base body, and the gear and the spring tooth are placed in the second groove.

[0015] In order to keep the spring tooth engaged with the gear, the limiting portion further includes an elastic member, one end of which abuts against the inside of the spring tooth, and the other end of which abuts against the corresponding wall of the second groove, thereby keeping the spring tooth engaged with the gear.

[0016] Furthermore, a positioning hole is formed on the periphery of the gear for cooperating with a tool during installation. The tool during installation, such as a latch, can be inserted into the positioning hole to prevent the spring tooth from being lifted up by the elastic member to cause installation inconvenience.

[0017] Furthermore, in order to prevent the second base body and the gear from being separated, the first base body includes a mounting portion mounted on the rotating portion;

[0018] The rotating structure also includes a mounting assembly, which includes a mounting piece and a screw. The mounting piece is inserted into the mounting part from a side of the mounting part away from the gear, and the screw passes through the mounting piece, the mounting part and the gear, thereby connecting and fixing the mounting piece, the mounting part and the gear.

[0019] In order to prevent the screws from being exposed, the mounting assembly further comprises a housing, and the housing cover is arranged on a side of the mounting piece away from the mounting portion.

[0020] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a lamp, characterized in that: it applies the rotating structure as described above, the first base body is a bracket arranged in a U-shaped structure, the second base body is a lamp holder, and the rotating parts have two and are respectively arranged on the two side surfaces of the lamp holder.

[0021] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a lamp, characterized in that: it applies the rotating structure as described above, the first base body is a bracket arranged in a U-shaped structure, the second base body is a lamp holder, the rotating parts have two and are respectively arranged in the two side surfaces of the lamp holder; the lamp holder includes two shells covered together, and the through hole is opened on one of the shells.

[0022] By completely opening the through hole on one of the shells, the presence of a joint between the two shells at the rotation point of the two base bodies is avoided, thereby improving the sealing performance.

[0023] Compared with the prior art, the advantages of the present invention are: by making the first base body and the second base body rotatably connected, the rotation support is stable, and the relative rotation and positioning between the two are achieved by the cooperation of the gear and the spring tooth. The gear and the second base body are fixed and accurately positioned, and the spring tooth engages with the side of the gear, and the spring tooth and the gear remain engaged, avoiding the problem of slipping caused by the engagement between the two radial surfaces, and can stably brake to achieve the relative position of the first base body and the second base body fixed when no rotation is required, and no loosening will occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a lamp according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the exploded structure of a lamp according to an embodiment of the present utility model;

[0026] Figure 3This is a schematic diagram of the exploded structure of the rotating structure and bracket of the lamp according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the bracket and mounting assembly of the lamp according to an embodiment of the present utility model;

[0028] Figure 5 A cross-sectional view of a mounting assembly of a lamp according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the exploded structure of the rotating part and the limiting part of the lamp according to an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the first shell of the lamp according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0033] See also Figures 1 to 7 A rotating structure includes a first base body and a second base body, and also includes a mounting assembly and a rotating portion fixed to the first base body. The rotating portion is also rotatably disposed on the second base body. The mounting assembly stably fixes the rotating portion and the first base body. The first base body and the rotating portion rotate synchronously, allowing the first base body to rotate 360 ​​degrees around the second base body. The rotating structure also includes a limiting portion that cooperates with the rotating portion to limit the rotational position of the rotating portion, allowing the rotating portion to remain in its current position after the external force is removed. This allows the first base body to remain at any desired angle relative to the second base body.

[0034] In this embodiment, the first base body is a U-shaped bracket 2, and the second base body is a lamp holder formed by the combined first shell 11 and second shell 12. Mounting components are located at the ends of the two arms of bracket 2, while rotating portions are formed within the sides of the lamp holder. Bracket 2 and the lamp holder are rotatably connected, thereby forming a lamp with an adjustable lighting angle.

[0035] The ends of the two arms of the bracket 2 are arranged relative to each other, and the ends constitute the mounting parts 21 of the mounting assembly, and each mounting part 21 is mounted with a mounting assembly. Each mounting assembly includes a mounting member 31, a screw 32 and a housing 33. The mounting member 31 is inserted into the mounting part 21 from the side where the two mounting parts 21 are away from each other, and the screw 32 passes through the mounting member 31 and the mounting part 21, thereby fixing the mounting member 31 and the mounting part 21 to each other. The housing 33 covers the side of the mounting member 31 away from the mounting part 21 to prevent the screw 32 from being exposed. The housing 33 and the mounting member 31 can be fixed by snapping. The housing 33 includes a cover plate 331 and a clamping foot 332 extending from the cover plate 331 toward the mounting member 31. The clamping foot 332 is snapped with the mounting member 31, thereby facilitating the disassembly and assembly of the housing 33.

[0036] A second recess 111 is formed within the first housing 11, and the rotating portion is positioned within the second recess 111. The rotating portion includes a gear 41, and the limiting portion includes a spring tooth 51 and an elastic member 52. The spring tooth 51 meshes with the gear 41. The elastic member 52 is preferably a spring. A spring seat 511 may be formed within the spring tooth 51. The elastic member 52 may be sleeved onto the spring seat 511, with one end of the spring member 52 abutting the interior of the spring tooth 51 and the other end abutting the corresponding wall portion of the second recess 111. This forces the spring tooth 51 toward the gear 41, ensuring engagement between the spring tooth 51 and the gear 41. The spring tooth 51 can then lock the gear 41 after rotating it to any angle, thereby maintaining the bracket 2 at a desired angle relative to the lamp holder. The spring tooth 51 is constrained to linear movement within the second recess 111. To achieve this, the inner wall of the second recess 111 can be configured to match the shape of the spring tooth 51, such as by a concave-convex fit.

[0037] Gear 41 is formed with positioning holes 411 around its perimeter, designed to engage with the latch pins of the installation tool. This prevents the spring teeth 51 from being lifted by the elastic member 52, which could cause installation difficulties. During installation, gear 41 is positioned on the side of bracket 2 where the two mounting portions 21 face each other. Screws 32 pass through the mounting portions 21 and secure gear 41, ensuring synchronous rotation of bracket 2 and gear 41. The presence of screws 32 tightens the mounting portions 21 and gear 41, preventing them from disengaging.

[0038] A through-hole 112 is provided on the side of the first housing 11. The mounting portion 21 includes a first portion 211, a second portion 212, and a first portion 213, which are arranged in sequence along the axial direction of the screw 32. The third portion 213 is located on the outside of the first housing 11. The second portion 212 passes through the through-hole 112 and enters the first housing 11. It rotatably engages with the first housing 11 at the through-hole 112. The first portion 211 is used to engage with the gear 41. The through-hole 112 is a circular hole, while the second portion 212 is cylindrical. The third portion 213 is larger than the through-hole 112 to prevent it from passing through the through-hole 112. Along the axial projection of the second portion 212, the second portion 212 is located within the third portion 213, that is, the periphery of the second portion 212 does not extend beyond the third portion 213. The third portion 213 is also preferably cylindrical. A first groove 412 is formed on the side of the gear 41 facing the mounting portion 21. The first portion 211 and the first groove 412 are adapted in shape and size so that the first portion 211 fits into the first groove 412, thereby further ensuring synchronous rotation of the gear 41 and the mounting portion 21. The first portion 211 is a non-cylindrical structure, such as a rectangular parallelepiped in this embodiment, to ensure synchronous rotation of the gear 41 and the mounting portion 21.

[0039] The above-mentioned through-hole 112 is only formed on the first shell 11, rather than on the first shell 11 and the second shell 12. Therefore, there will be no seam between the two shells at the edge of the through-hole 112, that is, there is no gap at the rotation point of the bracket 2, the sealing is good, and it has good waterproof performance.

[0040] The mounting assembly may further include a hook 34 , which is rotatably mounted on the mounting member 31 , with its rotation axis being perpendicular to the rotation axis of the gear 41 .

[0041] During installation, first install the spring tooth 51 and the elastic member 52 into the second groove 111 of the lamp holder, then engage the screw 32 with the gear 41 through the mounting member 31 (install the hook 34 at the same time), and then install the housing 33 on the mounting member 31.

Claims

1. A rotating structure comprising a first base body and a second base body rotatably connected, characterized in that: The rotating structure further includes: A rotating part is rotatably arranged in the second base body; the rotating part includes a gear (41) fixed to the first base body and rotating synchronously; and The limiting portion is arranged in the second base body so as to be linearly movable relative to the second base body; the limiting portion includes a spring tooth (51), which is arranged on the side of the gear (41) and maintains a tendency to mesh with the gear (41), thereby being used to brake the gear (41).

2. The rotating structure according to claim 1, characterized in that: The first base body includes a mounting portion (21) mounted on the gear (41), the mounting portion (21) includes a first portion (211) and a second portion (212), a through hole (112) is provided on the second base body, the second portion (212) passes through the through hole (112) and partially enters the second base body, the second portion (212) rotates with the second base body at the through hole (112), and the first portion (211) is connected to the gear (41) so that the mounting portion (21) and the gear (41) rotate synchronously.

3. The rotating structure according to claim 2, characterized in that: A first groove (412) is formed on the side of the gear (41) facing the mounting portion (21), and the shape and size of the first portion (211) are respectively adapted to the first groove (412). The first portion (211) is inserted into the first groove (412), so that the gear (41) and the mounting portion (21) rotate synchronously.

4. The rotating structure according to claim 1, wherein: A second groove (111) is formed in the second base body, and the gear (41) and the spring tooth (51) are placed in the second groove (111).

5. The rotating structure according to claim 4, characterized in that: The limiting portion further comprises an elastic member (52), one end of the elastic member (52) abuts against the interior of the elastic tooth (51), and the other end of the elastic member (52) abuts against the corresponding wall portion of the second groove (111), thereby causing the elastic tooth (51) to maintain a tendency to mesh with the gear (41).

6. The rotating structure according to claim 1, characterized in that: A positioning hole (411) for cooperating with a tool during installation is formed on the periphery of the gear (41).

7. The rotating structure according to claim 1, characterized in that: The first base body includes a mounting portion (21) mounted on the rotating portion; The rotating structure further comprises a mounting assembly, wherein the mounting assembly comprises a mounting member (31) and a screw (32), wherein the mounting member (31) is inserted into the mounting portion (21) from a side of the mounting portion (21) away from the gear (41), and the screw (32) passes through the mounting member (31), the mounting portion (21) and the gear (41), thereby connecting and fixing the mounting member (31), the mounting portion (21) and the gear (41).

8. The rotating structure according to claim 7, characterized in that: The mounting assembly further comprises a housing (33), and the housing (33) is provided on a side of the mounting member (31) away from the mounting portion (21).

9. A lamp, characterized in that: The rotating structure according to any one of claims 1 to 8 is applied, wherein the first base body is a bracket (2) arranged in a U-shaped structure, the second base body is a lamp holder, and the rotating parts have two parts and are respectively arranged in two side surfaces of the lamp holder.

10. A lamp, characterized in that: The rotating structure as claimed in claim 2 or 3 is applied, wherein the first base body is a bracket (2) arranged in a U-shaped structure, the second base body is a lamp holder, the rotating parts have two parts and are respectively arranged in two side surfaces of the lamp holder; the lamp holder includes two shells covered together, and the through hole (112) is opened on one of the shells.

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