Rotation angle limiting structure and lamp

Abstract

A rotation angle limiting structure comprises a rotation axis Z; the first structural member is provided with a first blocking point; the second structural part can rotate around the rotating axis Z relative to the first structural part, and a second blocking point is arranged on the second structural part; the third structural part can rotate around the rotating axis Z relative to the first structural part, and a third blocking point is arranged on the third structural part; the rotation angle limiting structure has the following states that when the third structural part rotates by an angle a to the first position around the rotation axis Z from the initial state, a third blocking point on the third structural part acts on a second blocking point and drives the second structural part to rotate, and at the moment, when the third structural part drives the second structural part to rotate by an angle b to the second position around the rotation axis Z, a third blocking point acts on the second blocking point. The second blocking point acts on the first blocking point and stops rotating; the sum of the angle a and the angle b is larger than 180 degrees. According to the lamp and the rotation angle limiting structure, the two-stage rotation limiting structure is adopted, so that the one-way rotation angle can be larger than 180 degrees, the total clockwise and anticlockwise rotation angle is larger than 360 degrees, and full-circumferential lamp rotation adjustment can be well achieved.

Description

Technical Field

[0001] The utility model relates to a rotatable lamp, in particular to a rotation angle limiting structure and the lamp. Background Art

[0002] Lamps are widely used in daily life and workplaces. Among them, spotlights with a rotating structure have the function of rotating and adjusting the illumination angle. They are highly decorative and functional and are also widely used.

[0003] In the prior art, a commonly used rotation angle limiting structure includes a rotating disk and a corresponding limit stop point, and a protruding structure is provided on the rotating disk. When the rotating disk starts to rotate from an initial intermediate position, a certain circumferential angle will inevitably be sacrificed due to the setting of the limit stop point and the protruding structure, resulting in: the rotating disk rotates clockwise until the protruding structure and the limit stop point are abutted, and the rotation angle is less than 180°; the rotating disk rotates counterclockwise until the protruding structure and the limit stop point are abutted, and the rotation angle is also less than 180°, that is, the rotation angle of the lamp is less than 360°, and full circumferential rotation cannot be achieved, that is, there are blind spots that the lamp cannot illuminate, and improvement is needed.

[0004] Based on the above problems in the prior art, the present application further designs and improves the rotation angle limiting structure in the lamp. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the utility model provides a rotation angle limit structure and a corresponding lamp, which adopts a two-level rotation limit structure so that the one-way rotation angle can be greater than 180°, and the total angle of rotation clockwise and counterclockwise is greater than 360°, which can well realize the full-circle rotation adjustment of the lamp.

[0006] The utility model solves the problem through the following technical solutions.

[0007] A rotation angle limiting structure comprises: a rotation axis Z; a first structural member, on which a first stop point is arranged; a second structural member which can rotate around the rotation axis Z relative to the first structural member, on which a second stop point is arranged; a third structural member which can rotate around the rotation axis Z relative to the first structural member, on which a third stop point is arranged; the rotation angle limiting structure has the following states: when the third structural member rotates from an initial state to position one along the rotation axis Z by an angle a, the third stop point thereon acts on the second stop point and drives the second structural member to rotate, and at this time, when the third structural member drives the second structural member to rotate around the rotation axis Z by an angle b to position two, the second stop point acts on the first stop point and stops the rotation; angle a+angle b>180°.

[0008] In the present application, in the initial state, the third stop point on the third structural member and the second stop point (second main stop point) on the second structural member are symmetrically located on both sides of the rotation axis Z. At this time, the third structural member can rotate clockwise or counterclockwise by angle a to position one. Due to the structural setting, angle a is less than 180°. After reaching position one, continue to rotate by angle b to position two. At this time, angle a+angle b>180°, that is, the maximum angle of the clockwise or counterclockwise rotation of the third structural member is greater than>180°, that is, the third structural member can achieve a circumferential rotation of more than 360° without dead angles.

[0009] In a preferred embodiment, the second gear point includes a second main gear point and at least one second auxiliary gear point, the second main gear point is used to interact with the third gear point, and the second auxiliary gear point is used to interact with the first gear point. The setting of this structure can reasonably limit the range of angle b by the second auxiliary gear point in the second gear point interacting with the first gear point. Under the premise of satisfying angle a+angle b>180°, angle b can be a relatively small angle, such as within 90°, to avoid excessive rotation.

[0010] In a preferred embodiment, there are two second auxiliary shift points, which are respectively arranged on both sides of the second main shift point.

[0011] In a preferred embodiment, there are two symmetrically arranged second auxiliary gear points, and there are two symmetrically arranged first gear points, which are used to interact with the corresponding second auxiliary gear points during clockwise rotation and counterclockwise rotation, respectively, to determine the size of the angle b.

[0012] In a preferred embodiment, the first structural member, the second structural member, and the third structural member are arranged in sequence along the direction of the rotation axis Z. During the rotation of the first structural member and the second structural member, the first gear point does not interact with the third gear point.

[0013] A lamp, comprising a fixed seat and a lamp body, wherein the fixed seat and the lamp body are rotatably connected via a rotating structure, wherein the rotating structure comprises a rotation angle limiting structure; the rotating structure further comprises a rotating member, wherein the rotating member defines a rotation axis Z. The lamp body in the lamp can rotate clockwise or counterclockwise, and the sum of the clockwise and counterclockwise rotation angles is greater than 360°, and full circumferential rotation can be achieved, and the lamp does not have a dead angle in the illumination angle. In the present application, the specific assembly structure, light source structure, and circuit structure in the fixed seat and the lamp body are all conventional technologies in the prior art.

[0014] In a preferred embodiment, the first structural member, the second structural member, and the third structural member are arranged in sequence along the direction of the rotation axis Z. During the rotation of the first structural member and the second structural member, the first gear point does not interact with the third gear point.

[0015] In a preferred embodiment, the rotation angle limiting structure is arranged in the fixing seat, and the rotating member extends from the fixing seat and is fixed to a mounting member on the lamp body, so as to realize flexible rotation.

[0016] In a preferred embodiment, the rotating member includes a rotating shaft, and the first structural member, the second structural member, and the third structural member are all mounted on the rotating shaft; the first structural member can rotate relatively around the rotating shaft, and the second structural member can rotate relatively around the rotating shaft; the third structural member rotates synchronously with the rotating shaft.

[0017] In a preferred embodiment, a lining plate abutting against a surface of one side of the first structural member is provided on the rotating shaft, and a second structural member and a third structural member are provided on the other side of the first structural member, so that the assembly structure is compact.

[0018] Compared with the prior art, the utility model has the following beneficial effects: it provides a rotation angle limiting structure and a corresponding lamp, adopts a two-level rotation limiting structure, so that the one-way rotation angle can be greater than 180°, and the total angle of rotation clockwise and counterclockwise is greater than 360°, specifically in the range of 360° (more than 360°) to 700°, which can well realize the full-circle rotation adjustment of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the lamp in the present utility model.

[0020] Figure 2 It is a three-dimensional diagram of the lamp in the utility model.

[0021] Figure 3 It is a three-dimensional diagram of the rotating structure and mounting parts on the lamp in the utility model.

[0022] Figure 4 It is a three-dimensional diagram of the rotation angle limiting structure in the utility model.

[0023] Figure 5 It is a top view of the rotation angle limiting structure in the utility model.

[0024] Figure 6 The schematic diagram of the decomposed state of the rotation angle limiting structure in the utility model is shown in FIG. Figure 1 .

[0025] Figure 7 The schematic diagram of the decomposed state of the rotation angle limiting structure in the utility model is shown in FIG. Figure 2 .

[0026] Figure 8 It is a schematic diagram of the principle of the rotation angle limiting structure in the utility model. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] In the following embodiments, the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0030] In the following embodiments, the initial state refers to: the third stop point 341 on the third structural member 34 and the second stop point on the second structural member 33 are symmetrically located on both sides of the rotation axis Z, that is, Figure 8 The state shown is in the middle.

[0031] See also Figures 1 to 3 In one embodiment of the present application, the lamp comprises a fixing seat 3 and a lamp body 1, wherein the fixing seat 3 and the lamp body 1 are rotatably connected via a rotating structure, wherein the rotating structure comprises a rotation angle limiting structure; the rotating structure further comprises a rotating member 2, wherein the rotating member 2 defines a rotation axis Z. The lamp body 1 in the lamp can rotate clockwise or counterclockwise, and the sum of the clockwise and counterclockwise rotation angles is greater than 360°, and full circumferential rotation can be achieved, and the lamp does not have a dead angle in the illumination angle. In the present application, the specific assembly structure, light source structure, and circuit structure in the fixing seat 3 and the lamp body 1 are all conventional technologies in the prior art.

[0032] In a specific solution, the rotation angle limiting structure is arranged in the fixing seat 3, and the rotating member 2 extends from the fixing seat 3 and is fixed on the mounting member 11 on the lamp body 1, so as to realize flexible rotation.

[0033] In this embodiment, the lamp is a spotlight installed on the ceiling. In other embodiments, lamps with a fixing base 3 and a lamp body 1, and the lamp body is rotatable, are all within the protection scope of the lamp involved in this application, such as: a rotating lamp installed on the wall, a rotatable table lamp placed on a desktop.

[0034] Specifically, the rotation angle limiting structure in this application is shown in the attached Figure 4 To Attachment Figure 8 .

[0035] The rotation angle limiting structure in one embodiment of the present application includes: a rotation axis Z, which is the rotation axis of the rotating member 2. It also includes: a first structural member 31, on which a first stop point 311 is provided; a second structural member 33 that can rotate around the rotation axis Z relative to the first structural member 31, on which a second stop point is provided; a third structural member 34 that can rotate around the rotation axis Z relative to the first structural member 31, on which a third stop point 341 is provided; the rotation angle limiting structure has the following state: when the third structural member 34 rotates from the initial state to the position one by the rotation axis Z at an angle a, the third stop point 341 thereon acts on the second stop point and drives the second structural member 33 to rotate, and at this time, when the third structural member 34 drives the second structural member 33 to rotate around the rotation axis Z at an angle b to the position two, the second stop point acts on the first stop point 311 and stops the rotation; angle a+angle b>180°.

[0036] In this embodiment, in the initial state, the third stop point 341 on the third structural member 34 and the second stop point on the second structural member 33 are symmetrically located on both sides of the rotation axis Z. At this time, the third structural member 34 can rotate clockwise or counterclockwise by angle a to position one. Due to the structural setting, angle a is less than 180°. After reaching position one, it continues to rotate by angle b to position two. At this time, angle a+angle b>180°, that is, the maximum angle of the clockwise or counterclockwise rotation of the third structural member 34 is greater than>180°, that is, the third structural member 34 can achieve a circumferential rotation of more than 360° without a dead angle. Further, by setting angle b (such as: adjusting the setting position of the second secondary stop point 332 to make it close to or integrated with the second main stop point 331), angle a+angle b can be made close to 350°. At this time, the third structural member 34 can achieve a circumferential rotation angle of 360° (more than 360°) to 700°.

[0037] In another embodiment of the present application, the second stop point includes a second main stop point 331 and at least one second secondary stop point 332, the second main stop point 331 is used to interact with the third stop point 341, and the second secondary stop point 332 is used to interact with the first stop point 311. With the arrangement of this structure, the range of angle b can be reasonably limited by the interaction between the second secondary stop point 332 in the second stop point and the first stop point 311. Under the premise of satisfying angle a+angle b>180°, angle b can be a relatively small angle, such as within 90°, to avoid excessive rotation.

[0038] In this embodiment, in the initial state, the third stop point 341 on the third structural member 34 and the second main stop point 331 on the second structural member 33 are symmetrically located on both sides of the rotation axis Z. At this time, the third structural member 34 can rotate clockwise or counterclockwise by angle a to position 1. Due to the structural setting, angle a is less than 180°. After reaching position 1, it continues to rotate by angle b to position 2, and the second secondary stop point 332 acts against the first stop point 311. At this time, angle a+angle b>180°, that is, the maximum angle of the clockwise or counterclockwise rotation of the third structural member 34 is greater than>180°, that is, the third structural member 34 can achieve a circumferential rotation of more than 360° without a dead angle.

[0039] In the preferred solution of this embodiment, there are two second secondary stop points 332, which are respectively arranged on both sides of the second main stop point 331 and are symmetrically arranged. There are two symmetrically arranged second secondary stop points 332, and there are two symmetrically arranged first stop points 311, which are used to interact with the corresponding second secondary stop points 332 during clockwise rotation and counterclockwise rotation, respectively, to determine the size of the angle b.

[0040] In the present application, the first structural member 31 , the second structural member 33 , and the third structural member 34 are sequentially arranged along the direction of the rotation axis Z. During the rotation of the first structural member 31 and the second structural member 33 , the first stop point 311 does not interact with the third stop point 341 .

[0041] Furthermore, in the present application, the rotating member 2 includes a rotating shaft 32, and the first structural member 31, the second structural member 33, and the third structural member 34 are all sleeved on the rotating shaft 32 through a through-hole structure; the first structural member 31 can rotate relatively around the rotating shaft 32, and the second structural member 33 can rotate relatively around the rotating shaft 32; the third structural member 34 rotates synchronously with the rotating shaft 32, for example: the hole 342 of the third structural member 34 has a planar inner wall, and a section of the outer wall of the rotating shaft 32 has a notch 321, and after the hole 342 is sleeved on the rotating shaft 32, the planar inner wall and the notch 321 are abutted against each other to achieve synchronous rotation; synchronous rotation can also be achieved by other means, such as fixed assembly, threaded fastening assembly, etc.

[0042] In the present application, a lining plate 323 is provided on the rotating shaft 32 to abut against a surface of one side of the first structural member 31 , and a second structural member 33 and a third structural member 34 are provided on the other side of the first structural member 31 , so that the assembly structure is compact.

[0043] In addition, in a specific implementation of the present application, the blocking point is as follows: Figure 6 and attached Figure 7 It can be seen that the first stop point 311 on the first structural member 31 is a turned-up flange structure, which is two symmetrically arranged blocks and is used to interfere with and offset the second auxiliary stop point 332; the second main stop point 331 on the second structural member 33 is a turned-up flange structure, the second main stop point 331 does not interfere with the first stop point 311, and the second auxiliary stop point 332 is a block structure extending along the plane of the second structural member 33, which is two symmetrically arranged blocks; the third stop point 341 on the third structural member 34 is a protruding structure extending along the plane of the third structural member 34, which is used to interfere with and offset the second main stop point 331.

[0044] Regarding the specific structure of the blocking point, the structure disclosed in the prior art or other conventional structures may also be adopted, as long as the same interference conditions are met.

[0045] Figure 8 The figure shows the principle schematic diagram of the rotation angle limiting structure in the present application, which shows the initial state, in which the third stop point 341 and the second main stop point 331 are located on opposite sides, and the two first stop points 311 are also located in the same direction. In this state, clockwise rotation or counterclockwise rotation is possible.

[0046] like Figure 8 As shown in: Taking clockwise rotation as an example, the third gear point 341 is from Figure 8 The lowest position in the middle rotates to the upper position and interacts with the second main stop point 331 to reach position 1. At this time, the rotation angle of the rotating shaft 32 is a, which is less than 180°, generally about 160°. Then continue to rotate to reach position 2. During the rotation process, Figure 8 The second secondary gear point 332 on the right side of the middle is turned to the lower position and Figure 8 The first stop point 311 in the middle and lower part acts against each other (due to the symmetrical arrangement, accordingly, Figure 8 The second auxiliary gear point 332 on the left side of the middle is turned to the upper position and Figure 8 The first stop point 311 in the upper middle part acts against each other), the rotation angle is b, Figure 8 The angle b in the figure is about 60° (the angle b can also be set to other angles as needed, just by adjusting the position of the second secondary stop point 332).

[0047] That is: Figure 8In the initial state, the clockwise rotation angle a + angle b is greater than 180°, and correspondingly, the counterclockwise rotation angle is also greater than 180°. The total angle of the two is greater than 360°, that is, the lamp body can be rotated and adjusted to an angle greater than 360°, and can rotate without dead angles.

[0048] It can be seen from the above description that the lamp and the rotation angle limiting structure in the present application adopt a two-level rotation limiting structure, so that the one-way rotation angle can be greater than 180°, and the total angle of rotation clockwise and counterclockwise is greater than 360°, which can well realize the full-circle rotation adjustment of the lamp.

[0049] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A rotation angle limiting structure, characterized in that: include: Axis of rotation Z; A first structural member (31), wherein a first stop point (311) is provided on the first structural member (31); a second structural member (33) rotatable about a rotation axis Z relative to the first structural member (31), wherein a second stop point is provided on the second structural member (33); a third structural member (34) rotatable around a rotation axis Z relative to the first structural member (31), wherein a third stop point (341) is provided on the third structural member (34); The rotation angle limiting structure has the following state: when the third structural member (34) rotates from the initial state to the first position at an angle a along the rotation axis Z, the third stop point (341) thereon acts on the second stop point and drives the second structural member (33) to rotate; at this time, when the third structural member (34) drives the second structural member (33) to rotate at an angle b along the rotation axis Z to the second position, the second stop point acts on the first stop point (311) and stops the rotation; Angle a+angle b>180°.

2. A rotation angle limiting structure according to claim 1, characterized in that: The second gear point comprises a second main gear point (331) and at least one second auxiliary gear point (332), the second main gear point (331) being used to interact with the third gear point (341), and the second auxiliary gear point (332) being used to interact with the first gear point (311).

3. A rotation angle limiting structure according to claim 2, characterized in that: There are two second auxiliary stop points (332), which are respectively arranged on both sides of the second main stop point (331).

4. A rotation angle limiting structure according to claim 3, characterized in that: The second auxiliary stop points (332) are two symmetrically arranged, and the first stop points (311) are two symmetrically arranged.

5. A rotation angle limiting structure according to any one of claims 1 to 4, characterized in that: The first structural member (31), the second structural member (33), and the third structural member (34) are arranged in sequence along the direction of the rotation axis Z. During the rotation of the first structural member (31) and the second structural member (33), the first stop point (311) does not interact with the third stop point (341).

6. A lamp, comprising a fixing seat (3) and a lamp body (1), wherein the fixing seat (3) and the lamp body (1) are rotatably connected via a rotating structure, characterized in that: The rotation structure includes the rotation angle limiting structure according to any one of claims 1 to 4; The rotating structure further comprises a rotating member (2), wherein the rotation of the rotating member (2) defines a rotating axis Z.

7. The lamp according to claim 6, characterized in that: The first structural member (31), the second structural member (33), and the third structural member (34) are arranged in sequence along the direction of the rotation axis Z. During the rotation of the first structural member (31) and the second structural member (33), the first stop point (311) does not interact with the third stop point (341).

8. The lamp according to claim 6, characterized in that: The rotation angle limiting structure is arranged in the fixing seat (3), and the rotating member (2) extends from the fixing seat (3) and is fixed on a mounting member (11) on the lamp body (1).

9. The lamp according to claim 6, characterized in that: The rotating member (2) comprises a rotating shaft (32), and the first structural member (31), the second structural member (33), and the third structural member (34) are all sleeved on the rotating shaft (32); The first structural member (31) can rotate relatively around the rotating shaft (32), and the second structural member (33) can rotate relatively around the rotating shaft (32); The third structural member (34) rotates synchronously with the rotating shaft (32).

10. The lamp according to claim 9, characterized in that: The rotating shaft (32) is provided with a lining plate (323) abutting against a surface of one side of the first structural member (31), and the other side of the first structural member (31) is provided with a second structural member (33) and a third structural member (34).

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