A floodlight rotation angle adjustment control device

Abstract

This application relates to a floodlight rotation angle adjustment control device, belonging to the field of lighting fixture technology. It includes a mounting frame and a lamp body rotatably mounted on the mounting frame. Two connecting shafts are symmetrically connected to the lamp body. The mounting frame includes a horizontal bar and two vertical bars symmetrically and vertically connected to the ends of the horizontal bar. The two connecting shafts are rotatably mounted on the two vertical bars. The end of the connecting shaft away from the lamp body extends out of the vertical bar. A fixed ring is connected to the side of the vertical bar away from the lamp body. A movable ring is fitted onto the end of the connecting shaft extending out of the vertical bar. Positive and negative teeth are arranged circumferentially on the sides of the fixed and movable rings that are close to each other, and the positive and negative teeth mesh with each other. A torsion spring connects the movable ring and the fixed ring, and the torsion spring's tightening direction is opposite to the direction of the meshing of the positive and negative teeth. A lifting component is provided on the vertical bar for driving the movable ring away from the fixed ring. This application improves the structure of the floodlight rotation adjustment mechanism, making floodlight angle adjustment more convenient and stable, and enabling precise adjustment.

Description

Technical Field

[0001] This application relates to the field of lighting fixture technology, and in particular to a floodlight rotation angle adjustment control device. Background Technology

[0002] Floodlights refer to a method of illumination using lighting equipment such as floodlights or spotlights. Floodlights are mainly used in large-area work sites, mines, building outlines, stadiums, overpasses, monuments, parks, and flower beds. Their beam angle can be adjusted between 0° and 180°; a particularly narrow beam is called a searchlight. Floodlights are also widely used in large commercial performances. In such settings, floodlights are required to rotate automatically and stably to create good lighting effects.

[0003] Currently, there are many types of floodlights on the market with different structures. Some floodlights used in specific occasions have a fixed illumination angle after installation. When fine-tuning the illumination angle, it is usually necessary to remove the lamp holder and reinstall it. This adjustment method is inconvenient to use and increases the workload of installers. Utility Model Content

[0004] To simplify the structure of floodlights and make it easier to adjust the illumination angle of the floodlights, this application provides a floodlight rotation angle adjustment control device.

[0005] The floodlight rotation angle adjustment and control device provided in this application adopts the following technical solution:

[0006] A floodlight rotation angle adjustment control device includes a mounting frame and a lamp body rotatably mounted on the mounting frame. Two connecting shafts are symmetrically connected to the lamp body. The mounting frame includes a horizontal bar and two vertical bars symmetrically and vertically connected to the ends of the horizontal bar. The two connecting shafts are rotatably threaded through the two vertical bars. The end of each connecting shaft away from the lamp body extends out of the vertical bar. A fixed ring is connected to the side of the vertical bar away from the lamp body. A movable ring is fitted onto the end of the connecting shaft extending out of the vertical bar. Positive and negative teeth are arranged circumferentially on the sides of the fixed and movable rings that are close to each other, and the positive and negative teeth mesh with each other. A torsion spring is connected between the movable ring and the fixed ring, and the torsion spring's tightening direction is opposite to the direction in which the positive and negative teeth mesh. A lifting assembly for driving the movable ring away from the fixed ring is provided on the vertical bar.

[0007] Optionally, the lifting assembly includes a drive rod that slides through the end of the connecting shaft and a positioning sleeve embedded in the vertical rod near the moving ring. The connecting shaft has a shaft hole, and the bottom end of the shaft hole has several through holes along the circumferential direction. The end of the drive rod has several contacts that are adapted to the through holes and can be completely retracted into the drive rod. A spring is connected between the contacts and the drive rod. A lifting key with a ramp at the bottom is slidably passed through the inner side of the positioning sleeve along the axial direction and corresponds to each of the contacts. A spring with a spring force less than that of the spring is connected between the contacts and the inner bottom side of the positioning sleeve.

[0008] Optionally, a compression spring for automatic reset of the drive rod is connected between the bottom end of the drive rod and the bottom side of the shaft hole, and the spring force of the compression spring is greater than the spring force of the first spring.

[0009] Optionally, the end of the connecting shaft away from the lamp body is connected to an adjusting turntable for rotating the connecting shaft, and the drive rod passes through the adjusting turntable.

[0010] Optionally, the adjusting turntable is detachably sleeved with the connecting shaft, and the interface between the adjusting turntable and the connecting shaft has a dedicated shape.

[0011] Optionally, the mounting bracket is covered with a waterproof shell at the position where the lifting component is installed, and the end of the connecting shaft and the adjusting turntable both protrude through the waterproof shell.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] 1. This application allows for convenient and quick adjustment of the illumination angle of floodlights used in fixed locations, thus making operation more convenient;

[0014] 2. This application can achieve precise adjustment of the floodlight illumination angle, and the lamp body connection structure is stable during the adjustment process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a floodlight rotation angle adjustment and control device according to this application.

[0016] Figure 2 yes Figure 1 Cross-sectional view at point AA.

[0017] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is an exploded view of the lifting assembly and related structures of a floodlight rotation angle adjustment control device according to this application.

[0019] Figure 5 This is a partial exploded view of the position of the adjustment turntable of a floodlight rotation angle adjustment control device according to this application.

[0020] Explanation of reference numerals in the attached drawings: 1. Mounting bracket; 11. Horizontal bar; 12. Vertical bar; 2. Lamp body; 3. Connecting shaft; 31. Fixed ring; 311. Positive gear; 32. Moving ring; 321. Negative gear; 33. Torsion spring; 34. Shaft hole; 341. Through hole; 35. Adjusting turntable; 4. Lifting assembly; 41. Drive rod; 411. Contact point; 412. Spring one; 42. Positioning sleeve; 43. Lifting key; 431. Ramp; 44. Spring two; 45. Compression spring; 5. Waterproof shell. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0022] This application discloses a floodlight rotation angle adjustment control device.

[0023] Reference Figure 1 and Figure 2 A floodlight rotation angle adjustment control device includes a mounting frame 1 and a lamp body 2 rotatably mounted on the mounting frame 1. Two connecting shafts 3 are symmetrically connected on the lamp body 2. The mounting frame 1 includes a horizontal bar 11 and two vertical bars 12 symmetrically and vertically connected to the two ends of the horizontal bar 11. The two connecting shafts 3 are respectively rotatably passed through the two vertical bars 12, with the end of the connecting shaft 3 away from the lamp body 2 extending out of the vertical bar 12.

[0024] A fixed ring 31 is connected to the side of the vertical rod 12 away from the lamp body 2. A moving ring 32 is sleeved on one end of the connecting shaft 3 that passes through the vertical rod 12. The fixed ring 31 and the moving ring 32 are respectively arranged circumferentially on the side that are close to each other, and the positive teeth 311 and the negative teeth 321 mesh with each other. A torsion spring 33 is connected between the moving ring 32 and the fixed ring 31, and the torsion spring 33 is twisted in the opposite direction to the direction in which the positive teeth 311 and the negative teeth 321 mesh with each other. A lifting assembly 4 is provided on the vertical rod 12 for driving the moving ring 32 away from the fixed ring 31.

[0025] With the above structure, rotating the lamp body 2 only requires rotating the connecting shaft 3. The fixed ring 31 and the moving ring 32 are tightly fitted together, so that the positive teeth 311 and the negative teeth 321 mesh with each other, which can drive the lamp body 2 to rotate a small angle to achieve fine adjustment. When it is necessary to readjust the angle of the lamp body 2 or to reset the lamp body 2, it is only necessary to drive the lifting assembly 4 to separate the fixed ring 31 and the moving ring 32. At this time, under the action of the torsion spring 33, the connecting shaft 3 will drive the lamp body 2 to reset.

[0026] Reference Figure 3 and Figure 4Specifically, the lifting assembly 4 includes a drive rod 41 that slides through the end of the connecting shaft 3 and a positioning sleeve 42 embedded in the side of the vertical rod 12 near the moving ring 32. The connecting shaft 3 has a shaft hole 34, and the bottom end of the shaft hole 34 has several through holes 341 circumferentially. The end of the drive rod 41 has several contacts 411 that are adapted to the through holes 341 and can be completely retracted into the drive rod 41. A spring 412 is connected between the contacts 411 and the drive rod 41. A lifting key 43 corresponding to the contacts 411 and with a ramp 431 at the bottom is slidably passed through the inner side of the positioning sleeve 42. A spring 44 with a spring force less than that of the spring 412 is connected between the contacts 411 and the bottom side of the positioning sleeve 42.

[0027] When separating the moving ring 32 and the fixed ring 31, simply press the drive rod 41, and the drive rod 41 will move down and cause several contacts 411 to pass through the through hole 341. Then the contacts 411 press the lifting key 43, which will cause the lifting key 43 to move up, thereby causing the lifting key 43 to lift the moving ring 32.

[0028] The above structure changes the lifting of the moving ring 32 to pressing the drive rod 41, greatly facilitating the adjustment of the position of the moving ring 32. Furthermore, this structure is simple, increasing the overall economic and practical value of the device.

[0029] Reference Figure 3 and Figure 4 A compression spring 45 is connected between the bottom end of the drive rod 41 and the bottom side of the shaft hole 34 for automatic reset of the drive rod 41, and the elastic force of the compression spring 45 is greater than that of the spring 412. This design is to facilitate the reset of the drive rod 41, thereby avoiding the troublesome operation of sliding out.

[0030] Reference Figure 1 and Figure 5 The end of the connecting shaft 3 furthest from the lamp body 2 is connected to an adjusting turntable 35 for rotating the connecting shaft 3, and a drive rod 41 passes through the adjusting turntable 35. This design makes it more convenient to manually adjust the connecting shaft 3 and the lamp body 2.

[0031] Reference Figure 5 Furthermore, the adjusting turntable 35 is detachably sleeved with the connecting shaft 3, and the interface between the adjusting turntable 35 and the connecting shaft 3 has a specific shape. This design is to prevent accidental installation and operation of the device, providing a safety guarantee for the device.

[0032] Reference Figure 1 and Figure 5 Preferably, the mounting bracket 1 is covered with a waterproof shell 5 at the position where the lifting component 4 is installed, and the end of the connecting shaft 3 and the adjusting turntable 35 both protrude from the waterproof shell 5.

[0033] The implementation principle of the floodlight rotation angle adjustment control device in this application embodiment is as follows:

[0034] By rotating the connecting shaft 3, this application can drive the lamp body 2 to rotate at a predetermined angle, improving the accuracy of operation. Simultaneously, this application designs a lifting component 4 to reset the lamp body 2, improving operational convenience.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A floodlight rotation angle adjustment control device, comprising a mounting frame (1) and a lamp body (2) rotatably mounted on the mounting frame (1), wherein two connecting shafts (3) are symmetrically connected on the lamp body (2), the mounting frame (1) comprises a horizontal bar (11) and two vertical bars (12) symmetrically and vertically connected to the two ends of the horizontal bar (11), wherein the two connecting shafts (3) are respectively rotatably mounted on the two vertical bars (12), characterized in that: The connecting shaft (3) extends out of the vertical rod (12) at the end away from the lamp body (2). A fixed ring (31) is connected to the side of the vertical rod (12) away from the lamp body (2). A moving ring (32) is sleeved on the end of the connecting shaft (3) that extends out of the vertical rod (12). Positive teeth (311) and negative teeth (321) are arranged circumferentially on the side of the fixed ring (31) and the moving ring (32) that are close to each other. The positive teeth (311) and the negative teeth (321) mesh with each other. A torsion spring (33) is connected between the moving ring (32) and the fixed ring (31). The torsion spring (33) is tightened in the opposite direction to the direction of meshing between the positive teeth (311) and the negative teeth (321). A lifting assembly (4) is provided on the vertical rod (12) for driving the moving ring (32) away from the fixed ring (31).

2. The floodlight rotation angle adjustment and control device according to claim 1, characterized in that: The lifting assembly (4) includes a drive rod (41) that slides through the end of the connecting shaft (3) and a positioning sleeve (42) embedded in the side of the vertical rod (12) near the moving ring (32). The connecting shaft (3) has a shaft hole (34), and the bottom end of the shaft hole (34) has several through holes (341) circumferentially. The end of the drive rod (41) has several through holes (341) circumferentially fitted to the through holes (341) and fully retractable into the drive rod (41). 1) The contacts (411) inside, a number of the contacts (411) are connected to the drive rod (41) by a spring (412), the inner side of the positioning sleeve (42) is slidably provided with a number of lifting keys (43) corresponding to the contacts (411) one by one and with a ramp (431) at the bottom, and a number of the contacts (411) and the bottom side of the inner side of the positioning sleeve (42) are connected by a spring (44) with a spring force less than that of the spring (412).

3. The floodlight rotation angle adjustment and control device according to claim 2, characterized in that: A compression spring (45) for automatic reset of the drive rod (41) is connected between the bottom end of the drive rod (41) and the bottom side of the shaft hole (34), and the spring force of the compression spring (45) is greater than the spring force of the first spring (412).

4. The floodlight rotation angle adjustment and control device according to claim 3, characterized in that: The connecting shaft (3) is connected to an adjusting turntable (35) for rotating the connecting shaft (3) at the end away from the lamp body (2), and the driving rod (41) passes through the adjusting turntable (35).

5. The floodlight rotation angle adjustment and control device according to claim 4, characterized in that: The adjusting turntable (35) is detachably sleeved with the connecting shaft (3), and the interface between the adjusting turntable (35) and the connecting shaft (3) is a special shape.

6. The floodlight rotation angle adjustment and control device according to claim 4, characterized in that: The mounting bracket (1) is covered with a waterproof shell (5) at the position where the lifting component (4) is installed, and the end of the connecting shaft (3) and the adjusting turntable (35) both protrude from the waterproof shell (5).

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