A stable rotating spotlight

Abstract

The application relates to a stable-rotating spotlight, belonging to the technical field of lighting lamps, which comprises a base and a lamp body, the backlight end of the lamp body is in a semispherical structure, a sleeve is connected to the base, one end of the sleeve is matched with the backlight end structure of the lamp body, a cross frame is arranged in the sleeve, the cross frame comprises vertical frames and horizontal frames which are perpendicular to each other and are distributed forward and backward along the sleeve axis, vertical rods and horizontal rods are rotatably arranged in the vertical frames and the horizontal frames respectively, connecting rods are hingedly connected between the two ends of the vertical rods and the horizontal rods and the backlight end of the lamp body, sliding blocks one and two are respectively slidably clamped on the horizontal rods and the vertical rods, a guide assembly one is arranged on the horizontal frame, a guide assembly two is arranged on the vertical frame, the horizontal frame is connected with a driving mechanism one for driving the sliding block one, and the vertical frame is connected with a driving mechanism two for driving the sliding block two. The spotlight can stably rotate more angles, so that a larger area can be irradiated, and the difficulty of installing the spotlight is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of lighting fixture technology, and in particular to a floodlight that can rotate stably. 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] However, most existing floodlights can only rotate within a single plane. To create good lighting effects, additional drive equipment is needed to move the floodlight and illuminate a larger area. This undoubtedly increases the overall size of the equipment and the difficulty of installing and removing the floodlight, adding inconvenience for the user. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this application provides a floodlight that can automatically and stably rotate at more angles after installation.

[0005] The floodlight capable of stable rotation provided in this application adopts the following technical solution: A floodlight capable of stable rotation includes a base and a lamp body movably mounted on the base. The backlight end of the lamp body has a hemispherical structure. A sleeve is connected to the base, and one end of the sleeve is structurally adapted to the backlight end of the lamp body. A cross frame is provided inside the sleeve. The cross frame includes a vertical frame and a horizontal frame that are perpendicular to each other and distributed front and back along the axis of the sleeve. A vertical rod and a horizontal rod are rotatably mounted on the middle of the vertical frame and the horizontal frame, respectively. Both ends of the vertical rod and the horizontal rod are hinged to the backlight end of the lamp body. A slider one and a slider two are slidably engaged along the length direction of the horizontal rod and the vertical rod, respectively. A guide component one for limiting the sliding direction of slider one is provided on the horizontal frame, and a guide component two for limiting the sliding direction of slider two is provided on the vertical frame. A drive mechanism one for driving slider one is connected to the horizontal frame, and a drive mechanism two for driving slider two is connected to the vertical frame.

[0006] Optionally, the drive mechanism includes an AC motor mounted on the end of the sleeve away from the lamp body and electrically connected to a control module, a screw connected to the output shaft of the AC motor, and a drive sleeve threaded onto the screw. A grooved rod is connected between the sleeve and the crossbar. The drive sleeve is slidably engaged in the grooved rod. The other end of the screw is rotatably inserted into the crossbar. A connecting rod is hinged to the outer wall of the drive sleeve. The other end of the connecting rod is hinged to the slider.

[0007] Optionally, the second driving mechanism includes a positioning rod connected to the end of the vertical frame away from the horizontal frame, a permanent magnet installed on the end of the positioning rod away from the vertical frame, and a sliding sleeve slidably sleeved on the positioning rod. A grooved rod is connected between the vertical frame and the permanent magnet. The sliding sleeve is slidably locked in the grooved rod. A connecting rod is hinged to the sliding sleeve. The other end of the connecting rod is hinged to the slider. An energized coil is installed on the side of the sliding sleeve near the permanent magnet. The coil is electrically connected to the control module.

[0008] Optionally, the guide assembly includes a short rod rotatably mounted on the crossbar and locking blocks symmetrically connected to both ends of the short rod near the slider. A micro motor is embedded in the crossbar, and the output shaft of the micro motor is sleeved with the middle of the short rod. The length of the slider is between the maximum and minimum distance between the two locking blocks. When the short rod is not parallel to the slider, one of the locking blocks abuts against one end of the slider and pushes the slider towards the other locking block.

[0009] Optionally, the sleeve includes an integrally connected mounting cylinder and a limiting ring. The inner side of the limiting ring away from the mounting cylinder is engaged with the hemispherical structure of the lamp body, and the inner diameter of the limiting ring away from the mounting cylinder is larger than the inner diameter of the mounting cylinder.

[0010] Optionally, the base includes a fixed base and a rotating base rotatably connected to the fixed base, and the sleeve is connected to the rotating base.

[0011] In summary, this application includes at least one of the following beneficial technical effects: The floodlight of this application can rotate stably at more angles, thereby increasing the area that the floodlight can illuminate, making up for the defect that the floodlight can only rotate in the same plane, and improving the practicality of the floodlight. The floodlight in this application is more convenient to adjust and can meet the diverse floodlight requirements of users. It is also smaller in size and easier to install. The floodlight of this application can control the rotation angle of the lamp body through an electrical signal, which improves the convenience of floodlight operation. Attached Figure Description

[0012] Figure 1 This is a half-sectional structural diagram of a floodlight that can rotate stably according to this application.

[0013] Figure 2 This is an overall schematic diagram of the drive mechanism and cross frame structure of a floodlight that can rotate stably according to this application.

[0014] Figure 3 This is an overall schematic diagram of the drive mechanism and vertical frame structure of a floodlight that can rotate stably according to this application.

[0015] Figure 4 yes Figure 1 A magnified view of point A in the middle.

[0016] Figure 5 This is an overall view of a floodlight that can rotate stably according to this application.

[0017] Explanation of reference numerals in the attached drawings: 1. Base; 11. Fixed base; 12. Rotating base; 2. Lamp body; 3. Sleeve; 31. Cross frame; 311. Vertical frame; 3111. Vertical rod; 31111. Slider one; 312. Horizontal frame; 3121. Horizontal rod; 31211. Slider two; 32. Mounting cylinder; 33. Limiting ring; 4. Connecting rod; 5. Guide assembly one; 51. Short rod; 52. Locking block; 53. Micro motor; 6. Guide assembly two; 7. Drive mechanism one; 71. AC motor; 72. Screw; 73. Drive sleeve; 74. Groove rod one; 75. Connecting rod one; 8. Drive mechanism two; 81. Positioning rod; 82. Permanent magnet; 83. Sliding sleeve; 84. Groove rod two; 85. Connecting rod two; 86. Coil. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0019] This application discloses a floodlight that can rotate stably.

[0020] Reference Figure 1A floodlight capable of stable rotation includes a base 1 and a lamp body 2 movably mounted on the base 1. A light source is installed inside the lamp body 2 to provide illumination. A sleeve 3 is connected to the base 1. The backlight end of the lamp body 2 is a hemispherical structure and is mounted at the end of the sleeve 3. The end of the sleeve 3 is adapted to the backlight end of the lamp body 2, allowing the lamp body 2 to rotate around the center of its upper hemisphere. A cross frame 31 is also provided inside the sleeve 3. The cross frame 31 includes vertical frames 311 and horizontal frames 312 that are perpendicular to each other and distributed front-to-back along the axis of the sleeve 3. Vertical rods 3111 and horizontal rods 3121 are rotatably mounted in the middle of the vertical frames 311 and 3121, respectively. Both ends of the vertical rods 3111 and 3121 along their length are hinged to the backlight end of the lamp body 2 by connecting rods 4.

[0021] When the horizontal bar 3121 or the vertical bar 3111 rotates around the center, one end of the horizontal bar 3121 or the vertical bar 3111 along its length will move away from the lamp body 2 under the pull of the connecting rod 4, while the other end will move closer to the lamp body 2. Based on this, the lamp body 2 will be pulled to one side and rotated by the connecting rod 4. And since the rotation angle of the lamp body 2 is related to the rotation angle of the horizontal bar 3121 or the vertical bar 3111, when the rotation angle of the horizontal bar 3121 or the vertical bar 3111 is controlled, the rotation angle of the lamp body 2 also becomes controllable.

[0022] Furthermore, slider 1 31211 and slider 2 31111 are slidably mounted on the horizontal bar 3121 and vertical bar 3111 respectively along their length direction to control the rotation angle of the horizontal bar 3121 and vertical bar 3111. A guide component 1 5 is provided on the horizontal frame 312 to limit the sliding direction of slider 1 31211, and a guide component 2 6 is provided on the vertical bar 3111 to limit the sliding direction of slider 2 31111. Guide component 1 5 and guide component 2 6 have the same structure and kinetic energy; therefore, to avoid excessive description, only the structure of guide component 1 5 will be described in detail in this application. Simultaneously, a drive mechanism 1 7 for driving slider 1 31211 to slide is connected to the horizontal frame 312, and a drive mechanism 2 8 for driving slider 2 31111 to slide is connected to the vertical frame 311.

[0023] Reference Figure 2Specifically, the drive mechanism 7 includes an AC motor 71 mounted on the outer side of the sleeve 3 away from the lamp body 2, a screw 72 connected to the output shaft of the AC motor 71, and a drive sleeve 73 threaded onto the screw 72. The output shaft of the AC motor 71 rotates through the end of the sleeve 3. A grooved rod 74 connects the sleeve 3 between the crossbar 312 and the inner wall of the sleeve 3. The drive sleeve 73 is slidably engaged in the groove of the grooved rod 74. When the output shaft of the AC motor 71 rotates, the drive sleeve 73 can slide within the grooved rod 74 under the transmission action of the screw 72. A connecting rod 75 is hinged to the outer wall of the drive sleeve 73. The other end of the connecting rod 75 is hinged to the slider 31211. When the drive sleeve 73 slides, it can drive the slider 31211 to slide along the crossbar 3121, achieving the effect of pulling one end of the crossbar 3121.

[0024] Reference Figure 3 The second drive mechanism 8 includes a positioning rod 81 connected to the end of the vertical frame 311 away from the horizontal frame 312, a permanent magnet 82 mounted on the positioning rod 81 away from the end of the vertical frame 311, and a sliding sleeve 83 slidably sleeved on the positioning rod 81. A grooved rod 84 connects the vertical frame 311 and the permanent magnet 82. The sliding sleeve 83 is engaged within the grooved rod 84 and hinged to a connecting rod 85. The other end of the connecting rod 85 is hinged to the slider 31111. An energized coil 86 is mounted on the side of the sliding sleeve 83 near the permanent magnet 82.

[0025] The coil 86 is electrically connected to a control module, which receives electrical signals and controls the current in the coil 86 according to the magnitude of the signals. Since the energized coil 86 forms an electromagnet, controlling the current in the coil 86 via the control module allows the sliding sleeve 83 to slide within the slotted rod 84 with the assistance of the permanent magnet 82. Because the sliding sleeve 83 is hinged to the connecting rod 85, its movement causes the slider 31111 to slide on the vertical rod 3111.

[0026] It should be noted that, since the functions of drive mechanism 7 and drive mechanism 8 in this application are to drive slider 31211 and slider 31111 respectively, their actions are identical, and therefore their structures can be interchanged. Any solution that simply replaces the parts driven by drive mechanism 7 and drive mechanism 8, or any non-inventive structural modification based on the solution in this application, should be within the scope of protection of this application.

[0027] Reference Figure 4Specifically, the guide assembly 5 includes a short rod 51 rotatably mounted on the crossbeam 312 and locking blocks 52 symmetrically connected to both ends of the short rod 51 near the slider 31211. A micro motor 53 for driving the short rod 51 to rotate is embedded in the crossbeam 312, and the output shaft of the micro motor 53 is fixedly sleeved together with the middle part of the short rod 51.

[0028] The length of slider 31211 lies between the maximum and minimum distances between the two locking blocks 52. When the micro motor 53 drives the short rod 51 to rotate, the locking block 52 at one end of the short rod 51 moves downward, while the locking block 52 at the other end moves upward, pressing slider 31211 towards the lower locking block 52 and causing it to move a short distance. At this time, since slider 31211 is already biased towards one end of the horizontal rod 3121 along its length, if the drive sleeve 73 drives slider 31211 to move, the horizontal rod 3121 will precisely rotate towards one end of the horizontal rod 3121, achieving the predetermined adjustment target.

[0029] Reference Figure 5 Furthermore, the sleeve 3 includes an integrally connected mounting cylinder 32 and a limiting ring 33. The inner side of the limiting ring 33, away from the mounting cylinder 32, mates with the hemispherical structure of the lamp body 2. Simultaneously, the inner diameter of the limiting ring 33 on the side away from the mounting cylinder 32 is larger than the inner diameter of the mounting cylinder 32. This structure makes the connection between the lamp body 2 and the sleeve 3 more stable, allowing the lamp body 2 to rotate at a greater angle while ensuring a tight fit between the lamp body 2 and the sleeve 3, making the rotation of the lamp body 2 more stable.

[0030] Reference Figure 5 Furthermore, the base 1 includes a fixed base 11 and a rotating base 12 rotatably connected to the fixed base 11, with the sleeve 3 mounted on the rotating base 12. This structure allows the floodlight of this application to be installed without needing to specifically adjust the installation angle, making the installation operation more convenient.

[0031] The implementation principle of a floodlight capable of stable rotation according to an embodiment of this application is as follows: The limiting ring 33 on the sleeve 3 of this application is rotatably connected to the hemispherical structure at the backlight end of the lamp body 2, so that the floodlight can rotate a larger angle range when in use, which is obviously more practical than floodlights that can only rotate in one plane.

[0032] The sleeve 3 is internally equipped with a drive mechanism 7 and a drive mechanism 8 for adjusting the rotation direction of the lamp body 2 horizontally and vertically, respectively. Among them: The drive mechanism 7 mainly uses an AC motor 71 to drive the drive sleeve 73 to slide within the groove rod 74. The drive sleeve 73 then drives the slider 31211 to slide to one end of the crossbar 3121 via the connecting rod 75, thereby rotating the crossbar 3121. When the crossbar 3121 rotates, it will drive the lamp body 2 to rotate to one side via the connecting rod 4.

[0033] The second drive mechanism 8 mainly adjusts the current in the coil 86 on the sliding sleeve 83 through the control module. The coil 86 generates a magnetic field when energized, and this magnetic field, together with the permanent magnet 82, pushes the sliding sleeve 83 to slide within the slot rod 84. The sliding sleeve 83 then drives the slider 31111 to slide to one end of the vertical rod 3111 via the connecting rod 85, thus rotating the vertical rod 3111. When the vertical rod 3111 rotates, it drives the lamp body 2 to rotate to one side via the connecting rod 4.

[0034] 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 capable of stable rotation, comprising a base (1) and a lamp body (2) movably mounted on the base (1), characterized in that: The backlight end of the lamp body (2) is a hemispherical structure. A sleeve (3) is connected to the base (1). One end of the sleeve (3) is adapted to the backlight end structure of the lamp body (2). A cross frame (31) is provided inside the sleeve (3). The cross frame (31) includes a vertical frame (311) and a horizontal frame (312) that are perpendicular to each other and distributed in a front-to-back manner along the axis of the sleeve (3). A vertical rod (3111) and a horizontal rod (3121) are respectively rotatably provided in the middle of the vertical frame (3111) and the horizontal rod (3121). Both ends of the vertical rod (3111) and the horizontal rod (3121) are hinged to the backlight end of the lamp body (2) by a connecting rod (4). The horizontal bar (3121) and the vertical bar (3111) are respectively slidably fitted with slider one (31211) and slider two (31111) along the length direction. The horizontal frame (312) is provided with guide component one (5) to limit the sliding direction of slider one (31211). The vertical frame (311) is provided with guide component two (6) to limit the sliding direction of slider two (31111). The horizontal frame (312) is connected to drive mechanism one (7) to drive slider one (31211). The vertical frame (311) is connected to drive mechanism two (8) to drive slider two (31111).

2. A floodlight capable of stable rotation according to claim 1, characterized in that: The drive mechanism 1 (7) includes an AC motor (71) installed on the sleeve (3) away from the lamp body (2) and electrically connected to a control module, a screw (72) connected to the output shaft of the AC motor (71), and a drive sleeve (73) threaded onto the screw (72). A grooved rod 1 (74) is connected between the sleeve (3) and the cross frame (312). The drive sleeve (73) is slidably locked in the grooved rod 1 (74). The other end of the screw (72) is rotatably inserted into the cross frame (312). A connecting rod 1 (75) is hinged to the outer wall of the drive sleeve (73). The other end of the connecting rod 1 (75) is hinged to the slider 1 (31211).

3. A floodlight capable of stable rotation according to claim 2, characterized in that: The second driving mechanism (8) includes a positioning rod (81) connected to the end of the vertical frame (311) away from the horizontal frame (312), a permanent magnet (82) installed on the end of the positioning rod (81) away from the vertical frame (311), and a sliding sleeve (83) slidably sleeved on the positioning rod (81). A grooved rod (84) is connected between the vertical frame (311) and the permanent magnet (82). The sliding sleeve (83) is slidably locked in the grooved rod (84). A connecting rod (85) is hinged to the sliding sleeve (83). The other end of the connecting rod (85) is hinged to the slider (31111). An energized coil (86) is installed on the side of the sliding sleeve (83) near the permanent magnet (82). The coil (86) is electrically connected to the control module.

4. A floodlight capable of stable rotation according to claim 3, characterized in that: The guide assembly (5) includes a short rod (51) rotatably mounted on the crossbeam (312) and locking blocks (52) symmetrically connected to both ends of the short rod (51) near the slider (31211). A micro motor (53) is embedded in the crossbeam (312). The output shaft of the micro motor (53) is sleeved with the middle of the short rod (51). The length of the slider (31211) is between the maximum and minimum distance between the two locking blocks (52). When the short rod (51) is not parallel to the slider (31211), one of the locking blocks (52) abuts against one end of the slider (31211) and pushes the slider (31211) toward the other locking block (52).

5. A floodlight capable of stable rotation according to claim 1, characterized in that: The sleeve (3) includes an integrally connected mounting cylinder (32) and a limiting ring (33). The inner side of the limiting ring (33) away from the mounting cylinder (32) is matched with the hemispherical structure of the lamp body (2), and the inner diameter of the limiting ring (33) away from the mounting cylinder (32) is larger than the inner diameter of the mounting cylinder (32).

6. A floodlight capable of stable rotation according to claim 5, characterized in that: The base (1) includes a fixed seat (11) and a rotating seat (12) rotatably connected to the fixed seat (11), and the sleeve (3) is connected to the rotating seat (12).

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