Flood lamp

Abstract

The floodlight comprises a radiator, a rotating module and a lifting module, wherein the rotating module and the lifting module are arranged according to the radiator; the rotating module comprises a rotary knob, a rotating fixing disc and a circular cam ring which are sequentially connected from top to bottom. The lifting module comprises a lens and a connecting rod mechanism; wherein the knob, the rotary fixing disc and the circular cam ring are integrally linked; the lens is fixed to the front face of the radiator through the connecting rod mechanism and can be driven by the connecting rod mechanism to move up and down by a certain stroke. When the rotary knob is rotated, the circular cam ring rotates synchronously, the connecting rod mechanism is triggered, and then the lens is driven to move to form different floodlight angles. And meanwhile, the knob stops rotating until the limiting bulge is in contact with the first high-low step. According to the technical scheme provided by the invention, multi-angle adjustment can be realized, application in different scenes is met, the demand of product stock preparation is reduced, the cost is effectively reduced, and the competitive advantage of products is improved.

Description

Technical Field

[0001] The present invention relates to the field of LED lamps, and in particular to a floodlight. Background Art

[0002] As is well known, the light-emitting angle of a floodlight is usually between 10° and 120°, and this range covers the basic requirements from narrow-angle beams to wide-angle lighting. However, with the continuous progress of technology, the demand for a floodlight that can emit multiple light-emitting angles is increasing. At the same time, for manufacturers, if a floodlight can meet many requirements, it can reduce the procurement volume of the same type of products, optimize inventory, and reduce operating costs.

[0003] The existing technologies currently need tools to achieve angle adjustment, and the adjustment force is uneven, resulting in angle deviations from time to time, and the experience is relatively poor. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a floodlight that can achieve multiple angle adjustments, meet different scenario applications, reduce the demand for product inventory preparation, effectively reduce costs, and improve the competitive advantage of the product.

[0005] A floodlight includes a radiator, a rotation module and a lifting module provided according to the radiator; the rotation module includes a knob, a rotation fixing plate and a circular cam ring connected in sequence from top to bottom; the lifting module includes a lens and a link mechanism; wherein,

[0006] The knob and the rotation fixing plate are connected together by a first stepped screw with a spring; the lower surface of the knob and the upper surface of the rotation fixing plate have a plurality of concave and convex grooves that are in close contact with each other; the plurality of concave and convex grooves are evenly distributed with the first stepped screw with a spring as the center; a limiting protrusion is provided at the outer edge of the rotation fixing plate, and a first high and low step corresponding to the limiting protrusion is provided at the outer edge of the knob;

[0007] The circular cam ring is arranged inside the radiator, and the knob is exposed on the back of the radiator; a second high and low step is provided at the outer edge of the circular cam ring;

[0008] The lens is fixed to the front of the radiator by a plurality of second spring - equipped stepped screws; the linkage mechanism is arranged on the back of the lens and inside the radiator; the number of the linkage mechanisms is at least two groups, and each group includes a grooved pin, a fixed seat, a left connecting rod, and a right connecting rod; a waist - shaped hole with a preset stroke length is arranged on the fixed seat; one ends of the left connecting rod and the right connecting rod are respectively fixed to the lens, and the other ends intersect at the fixed seat and are fixed after the grooved pin passes through the waist - shaped hole; the grooved pin is in contact with the outer edge of the circular cam ring;

[0009] When the knob is rotated, the circular cam ring rotates synchronously, the second high - low step pushes the grooved pin to move up or down in the waist - shaped hole, and the left connecting rod and the right connecting rod drive the lens to rise or fall by a preset height; when the knob rotates until the limit protrusion contacts the first high - low step, it stops.

[0010] Preferably, the linkage mechanism further includes a circlip; one ends of the left connecting rod and the right connecting rod that intersect at the fixed seat are fixed after the grooved pin passes through the waist - shaped hole and are clamped by the circlip.

[0011] Preferably, an O - ring is sleeved outside the rotating fixed disk, and the O - ring is between the knob and the rotating fixed disk.

[0012] Preferably, the inner side of the knob has a fixing post extending downward, the rotating fixed disk has a through - hole for the fixing post to pass through, and the circular cam ring has a fixing hole matching the fixing post; the fixing post passes through the through - hole and is snapped into the fixing hole.

[0013] Preferably, a waterproof rubber ring is arranged between the rotating fixed disk and the circular cam ring, and the waterproof rubber ring is arranged in the inner groove of the rotating fixed disk.

[0014] Preferably, the number of the second high - low steps is two, and each second high - low step is a side wall with a smooth transition from high to low; the two second high - low steps are arranged end - to - end along the outer edge of the circular cam ring.

[0015] Preferably, the first high - low step is a notch section formed along the outer edge of the knob.

[0016] Preferably, if each concave - convex groove corresponds to a preset adjustment angle a, the adjustment gear N of the floodlight is equal to 360 divided by a; the preset height H at which the lens rises or falls has the following relationship with the preset adjustment angle:

[0017] H = h - sin(trajpar * 360 * N)

[0018] Among them, 360 refers to the angle value of one circle; h represents the initial height value when the knob is in close contact with the rotating fixed disk.

[0019] For the floodlight provided by the present invention, its working principle is as follows: After the rotation module and the lifting module are fixed, the knob is in close contact with the rotating fixed disk, and the default initial irradiation angle of the lens is the maximum angle. When the knob is rotated, the circular cam ring rotates synchronously; at this time, the spring compression amount of the first stepped screw with a spring first increases and then decreases, and is always in a compressed state. When the concave and convex groove below the knob jumps to another concave and convex groove above the rotating fixed disk, it stops; at the same time, the second high and low step on the circular cam ring pushes the grooved pin upward and pushes the left and right connecting rods upward, thereby raising the lens by a certain distance and changing the light-emitting angle; due to the influence of the compression force of the second stepped screw with a spring on the lens, the lens remains stationary, with a stable structure and precise angle control. Thus, the knob can be continuously rotated to change the light-emitting angle of the lens again. When the limit protrusion on the rotating fixed disk contacts the first high and low step on the knob, the rotation stops, achieving the limit function. After setting the number of concave and convex grooves and the initial height value when the knob is in close contact with the rotating fixed disk, the floodlight angle that can be adjusted for each rotation gear can be precisely controlled, thereby realizing multiple angle adjustments.

[0020] Compared with the prior art, the technical solution provided by the present invention can meet different scenario applications, reduce the demand for product inventory preparation, effectively reduce costs, and improve the competitive advantage of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded view of the floodlight in the embodiment of the present invention;

[0022] Figure 2 It is an exploded view of the rotation module in the embodiment of the present invention;

[0023] Figure 3 It is another exploded view of the rotation module in the embodiment of the present invention;

[0024] Figure 4 It is an exploded view of the lifting module in the embodiment of the present invention;

[0025] Figure 5 It is a three-dimensional view of the knob and the rotating fixed disk in the embodiment of the present invention;

[0026] Figure 6 It is an assembly schematic diagram of the floodlight in the embodiment of the present invention;

[0027] Figure 7 It is another assembly schematic diagram of the floodlight in the embodiment of the present invention;

[0028] Figure 8Another assembly schematic diagram of the floodlight in the embodiment of the present invention;

[0029] The reference signs in the accompanying drawings of the specification are as follows:

[0030] 1. First stepped screw with spring; 2. Spring; 3. Knob; 31. Concave-convex groove; 32. First high-low step; 33. Fixed column; 4. O-ring; 5. Combined screw; 6. Rotating fixed disk; 61. Concave-convex groove; 62. Limit protrusion; 63. Through hole; 7. Waterproof rubber ring; 20. Radiator; 30. Circular cam ring; 301. Second high-low step; 302. Fixed hole; 41. Grooved pin; 42. Fixed seat; 421. Slotted hole; 43. Right connecting rod; 44. Left connecting rod; 45. Snap ring; 46. Lens; 47. Second stepped screw with spring; 48. Panel. Detailed implementation manners

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Provide a floodlight, as Figures 1 to 8 shown, including a radiator 20 and a rotation module and a lifting module arranged according to the radiator; the rotation module includes a knob 3, a rotating fixed disk 6 and a circular cam ring 30 connected in sequence from top to bottom; the lifting module includes a lens 46 and a link mechanism.

[0033] Among them, the knob and the rotating fixed disk are connected together by a first stepped screw with spring 1. The first stepped screw with spring is used to enable relatively stable movement when the knob rotates clockwise or counterclockwise relative to the rotating fixed disk. The lower surface of the knob and the upper surface of the rotating fixed disk have a plurality of concave-convex grooves 31 / 61 that are in close contact with each other. The plurality of concave-convex grooves are evenly distributed with the first stepped screw with spring as the center. Each concave-convex groove is used to correspond to one angle adjustment gear. A limit protrusion 62 is arranged on the outer edge of the rotating fixed disk, and a first high-low step 32 corresponding to the limit protrusion is arranged on the outer edge of the knob. The first high-low step and the limit protrusion are used to limit the rotation range of the knob, and can accurately limit the adjustment angle to avoid deviation.

[0034] The circular cam ring is arranged inside the radiator, and the knob exposes on the back of the radiator for easy manual operation by the user. A second high-low step 301 is arranged on the outer edge of the circular cam ring, and the second high-low step is used to push the lifting mechanism to move.

[0035] The lens is fixed to the front of the radiator by a plurality of second spring-equipped stepped screws 47; the linkage mechanism is arranged on the back of the lens and inside the radiator; the number of linkage mechanisms is at least two groups, and each group includes a grooved pin 41, a fixed seat 42, a left connecting rod 44, and a right connecting rod 43; a waist-shaped hole 421 with a preset stroke length is provided on the fixed seat; one ends of the left connecting rod and the right connecting rod are respectively fixed to the lens, and the other ends intersect at the fixed seat and are fixed after being passed through the waist-shaped hole by the grooved pin, that is, one ends of the left connecting rod and the right connecting rod are provided with hole positions for the grooved pin to pass through, so that the planes of the left connecting rod, the right connecting rod, and the lens form a triangle; the pin part of the grooved pin contacts the outer edge of the circular cam ring, facilitating the second high and low steps to push the pin part of the grooved pin to move up and down in the waist-shaped hole.

[0036] When the knob is rotated, the circular cam ring rotates synchronously, and the second high and low steps push the grooved pin to move up or down in the waist-shaped hole, and the lens is driven by the left connecting rod and the right connecting rod to rise or fall by a preset height, and the preset height corresponds to different light-emitting angles; when the knob rotates until the limit protrusion contacts the first high and low steps, it stops.

[0037] During the movement of the lens, since the lens is fixed to the lamp board in the radiator by the second spring-equipped stepped screw, the lens is affected by the spring compression force and can remain stable, facilitating the precise control of the adjustment angle.

[0038] Furthermore, the linkage mechanism further includes a circlip 45; one ends of the left connecting rod and the right connecting rod that intersect at the fixed seat are fixed after being passed through the waist-shaped hole by the grooved pin and then clamped by the circlip.

[0039] Furthermore, an O-ring 4 is sleeved on the outside of the rotating fixed disk, and the O-ring is located between the knob and the rotating fixed disk, and the O-ring can increase the friction force. Specifically, the knob side compresses the O-ring and is fixedly connected to the circular cam ring through the combined screw 5, so that the knob and the circular cam ring can rotate synchronously.

[0040] Furthermore, the inner side of the knob has a downward-extending fixing post 33, the rotating fixed disk has a through hole 63 for the fixing post to pass through, and the circular cam ring has a fixing hole 302 matching the fixing post; the fixing post passes through the through hole and is snapped into the fixing hole. Preferably, the number of fixing posts is two and is located at the central position of the inner side of the knob.

[0041] Furthermore, a waterproof rubber ring 7 is provided between the rotating fixed disk and the circular cam ring, and the waterproof rubber ring is arranged in the inner groove of the rotating fixed disk, and the waterproof rubber ring can effectively prevent rainwater from entering the radiator.

[0042] Further, in one implementation, the number of the second high-low steps is two, and each second high-low step is a side wall that smoothly transitions from high to low. The two second high-low steps are arranged end to end along the outer edge of the circular cam ring. When the circular cam ring rotates, the two second high-low steps respectively drive the lifting mechanisms located on both sides of the back of the lens to evenly apply force to push the lens up and down.

[0043] Further, the first high-low step is a notch section formed along the outer edge of the knob. When the limit protrusion is snapped into the notch section, the limit stop is achieved.

[0044] Further, based on the above structure, the angle adjustment range brought about by the movement of the lens can be freely and precisely set. Let each concave-convex groove correspond to a preset adjustment angle a, then the adjustment gear N of the floodlight is equal to 360 divided by a. For example, if the adjustment angle corresponding to each rotation of the knob is 45°, then the number of concave-convex grooves on both the knob and the rotating fixed disk is 8. The preset height H of the lens rising or falling has the following relationship with the preset adjustment angle:

[0045] H = h - sin(trajpar * 360 * N)

[0046] Among them, 360 refers to the angle value of one circle; h represents the initial height value when the knob is close to the rotating fixed disk; tarjpar is a software trajectory parameter, which is a variable from 0 to 1 representing the length percentage of the swept feature.

[0047] From the above formula, the relationship between the rising height and the light-emitting angle can be calculated. For example, given that the default angle is a1 and the angle after rotating 45° is b1, then the required rising height h' = arctan(a1 - b1) can be calculated, and it is stipulated that when rotating 45°, the lens rises a fixed distance.

[0048] In summary, for each rotation of one grid angle of the knob of this floodlight, the floodlight can switch to a light-emitting angle. At the same time, the lifting of the lens is realized through the cooperation of the circular cam ring and the link mechanism; and during the movement of the lens, based on the pressing effect generated by the stepped screw with a spring, the lens can move stably during the lifting process.

[0049] It can be understood that only the core components of this floodlight are described above, and other conventional components, such as the panel 48 and other components, are not elaborated here.

[0050] The above is the elaboration of the floodlight of the present invention to help understand the present invention. However, the implementation mode of the present invention is not limited by the above embodiments. Any changes, modifications, substitutions, combinations, and simplifications made without departing from the principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A floodlight, characterized in that: It includes a heat sink and a rotating module and a lifting module arranged according to the heat sink; the rotating module includes a knob, a rotating fixed disk and a circular cam ring connected in sequence from top to bottom; the lifting module includes a lens and a connecting rod mechanism; wherein, The knob and the rotating fixed disk are connected together by a first step screw with a spring; the lower surface of the knob and the upper surface of the rotating fixed disk have a plurality of concave-convex grooves that are in close contact with each other; the plurality of concave-convex grooves are evenly distributed with the first step screw with a spring as the center; a limiting protrusion is provided on the outer edge of the rotating fixed disk, and a first high and low step corresponding to the limiting protrusion is provided on the outer edge of the knob; The circular cam ring is arranged inside the radiator, and the knob is exposed at the back of the radiator; the outer edge of the circular cam ring is provided with a second high and low step; The lens is fixed to the front of the heat sink by a plurality of second stepped screws with springs; the link mechanism is arranged on the back of the lens and located inside the heat sink; the link mechanism is at least two groups, each group includes a slotted pin, a fixing seat, a left connecting rod and a right connecting rod; the fixing seat is provided with a waist hole with a preset stroke length; one end of the left connecting rod and the right connecting rod are respectively fixed to the lens, and the other ends intersect at the fixing seat and are fixed by the slotted pin after passing through the waist hole; the slotted pin contacts the outer edge of the circular cam ring; When the knob is turned, the circular cam ring rotates synchronously, the second high and low steps push the grooved pin to move upward or downward in the waist hole, and the left connecting rod and the right connecting rod drive the lens to rise or fall to a preset height; when the knob is rotated until the limit protrusion contacts the first high and low steps, it stops.

2. The floodlight according to claim 1, characterized in that: The connecting rod mechanism also includes a retaining spring; the left connecting rod and the right connecting rod intersect at one end of the fixing seat, and then the grooved pin passes through the waist hole and is fixed and then clamped by the retaining spring.

3. The floodlight as claimed in claim 1, characterized in that: An O-ring is sleeved on the outer side of the rotating fixed disk, and the O-ring is located between the knob and the rotating fixed disk.

4. The floodlight as claimed in claim 1, characterized in that: The inner side of the knob is provided with a fixing column extending downward, the rotating fixing plate is provided with a through hole for the fixing column to pass through, and the circular cam ring is provided with a fixing hole matching the fixing column; the fixing column is inserted into the fixing hole after passing through the through hole.

5. The floodlight as claimed in claim 1, characterized in that: A waterproof rubber ring is arranged between the rotating fixed disk and the circular cam ring, and the waterproof rubber ring is arranged in the inner groove of the rotating fixed disk.

6. The floodlight as claimed in claim 1, characterized in that: The number of the second high-low steps is two, and each of the second high-low steps is a side wall that smoothly transitions from high to low; the two second high-low steps are arranged end to end along the outer edge of the circular cam ring.

7. The floodlight as claimed in claim 1, characterized in that: The first height step is a notch section formed along the outer edge of the knob.

8. The floodlight according to any one of claims 1 to 5, characterized in that: Assuming that each of the concave-convex grooves corresponds to a preset adjustment angle a, the adjustment level N of the floodlight is equal to 360 divided by a; the preset height H of the lens rising or falling and the preset adjustment angle have the following relationship: H=h-sin(trajpar*360*N) Wherein, 360 refers to the angle value of one circle; h represents the initial height value when the knob is close to the rotating fixed plate.

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