Multi-angle adjustable projection lamp

Abstract

The multi-angle adjustable projection lamp effectively solves the problem of inconvenient angle adjustment of the existing projection lamp; the fixed column is axially arranged upward and downward, a ball groove is formed in the upper end of the fixed column, a connecting column is hingedly connected in the ball groove through a hinge ball, a lamp is arranged on the upper end of the connecting column, a lower positioning column axially arranged upward and downward and capable of being inserted into the ball groove is coaxially and slidingly connected in the fixed column, a plurality of positioning holes are formed in the fixed column and are uniformly distributed along the circumferential direction of the fixed column and are in communication with the ball groove, a side positioning column is slidingly connected in the positioning hole, an insertion slot is formed in the side positioning column, an inclined slot in communication with the insertion slot is formed in the side positioning column, a plurality of pull rods corresponding to the side positioning column and fixed with the lower positioning column are slidingly connected in the fixed column, and an insertion column is arranged on the pull rod and is inserted into the corresponding inclined slot; the structure is simple, novel in design, convenient to use and high in practicality.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a multi-angle adjustable projection lamp. Background Technology

[0002] With the widespread application of projection lighting technology in stage performances, architectural landscapes, and commercial displays, users' demands for the flexibility and convenience of projection lighting fixtures are increasing. In existing technologies, traditional projection lighting fixtures typically use bolt connections or simple pivot structures to adjust the illumination angle. This adjustment method often has significant limitations: the operation is cumbersome, requiring the loosening of multiple locking bolts in various directions for rough manual positioning followed by re-tightening. This not only makes precise and smooth angle adjustments difficult, but its inefficiency is particularly pronounced in scenarios requiring frequent and rapid changes in the projected light spot position. Furthermore, after prolonged use, the bolts in this type of structure are prone to stripping or loosening, causing the fixture to sag or shift after fixing, making it impossible to stably maintain the preset projection angle and affecting reliability. Therefore, there is an urgent need for a projection lamp that can achieve multi-angle stepless adjustment, is quick to operate, and provides stable and reliable positioning. Utility Model Content

[0003] In view of the above situation and in order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-angle adjustable projection lamp, which effectively solves the problem of inconvenient angle adjustment of existing projection lamps.

[0004] The technical solution is as follows: This utility model includes a fixed column with vertical and horizontal axes. A ball groove is opened at the upper end of the fixed column. A connecting column is hinged in the ball groove. A lamp is provided at the upper end of the connecting column. A lower positioning column is slidably connected coaxially in the fixed column and can be inserted into the ball groove. Multiple positioning holes are opened on the fixed column and are evenly distributed along its circumference and communicate with the ball groove. A side positioning column is slidably connected in the positioning hole. A slot is opened on the side positioning column. An inclined groove is opened on the side positioning column and communicates with the slot. Multiple pull rods are slidably connected in the fixed column and correspond one-to-one with the side positioning column and are fixed to the lower positioning column. The pull rods are provided with inserts that are inserted into the corresponding inclined grooves.

[0005] Preferably, the upper end face of the lower positioning post and the inner end faces of the plurality of side positioning posts are spherical surfaces that can fit into the surface of the hinge ball.

[0006] Preferably, the inclined position of the inclined groove is such that, with the axis of the fixed column as the inner end, the inclined groove is lower on the inside and higher on the outside.

[0007] Preferably, the fixed column is threaded with a rotating cylinder, the rotating cylinder has a pull-down groove coaxially formed inside, the fixed column has a receiving groove coaxially formed inside, the front and rear ends of the fixed column are respectively provided with moving grooves in the up and down direction and communicating with the receiving groove, and the front and rear ends of the lower fixed column are respectively provided with connecting rods located in the pull-down groove and inserted into the moving groove.

[0008] Preferably, rubber pads are provided on the arc-shaped surfaces of the lower positioning post and the side positioning post.

[0009] Preferably, the outer surface of the lamp is provided with a plurality of evenly distributed heat dissipation fins.

[0010] Preferably, the lower end of the fixing column is provided with a mounting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the linkage between the axial movement of the lower positioning column and the radial movement of multiple side positioning columns forms a coordinated clamping and locking action on the articulated ball. This mechanism can be driven by the rotation of a single rotating cylinder, allowing the user to instantly release all constraints by simply rotating the rotating cylinder when adjusting the lamp angle. This allows the lamp to achieve smooth, stepless adjustment in any direction within the ball-joint connection range. After selecting the angle, by rotating the rotating cylinder in the opposite direction, the lower positioning column and the side positioning columns apply uniformly increasing clamping force from below and the side, which stably and reliably locks the articulated ball in the target position. This solves the inherent defects of traditional projection lamp adjustment, such as requiring multiple steps, low efficiency, and easy loosening and displacement after locking. It achieves rapid adjustment and stable fixation, greatly improving the ease of operation, positioning accuracy, and reliability of the equipment in long-term use. Attached Figure Description

[0012] Figure 1 This is the main view axonometric drawing of this utility model.

[0013] Figure 2 This is a full-section main view axonometric drawing of this utility model.

[0014] Figure 3 This is a full-section left-side axonometric drawing of this utility model.

[0015] Figure 4 This is a full-section top-view axonometric drawing of this utility model.

[0016] Figure 5 This is a utility model Figure 2 A magnified view of A in the middle.

[0017] Figure 6 This is a utility model Figure 4 A magnified view of B in the middle.

[0018] Figure label: 1. Fixed post; 2. Hinge ball; 3. Light fixture; 4. Lower positioning post; 5. Positioning hole; 6. Side positioning post; 7. Slot; 8. Inclined slot; 9. Pull rod; 10. Insert post; 11. Rotary cylinder; 12. Pull-down slot; 13. Receiving slot; 14. Moving slot; 15. Connecting rod; 16. Heat dissipation fins; 17. Mounting plate. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the implementations of the base model disclosed below.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Depend on Figures 1 to 4 The device includes a fixed column 1 with vertical axial orientation, a ball groove at the upper end of the fixed column 1, a connecting column connected to the ball groove via a hinged ball 2, a lamp 3 at the upper end of the connecting column, a lower positioning column 4 slidably connected coaxially within the fixed column 1 and insertable into the ball groove, multiple positioning holes 5 evenly distributed along its circumference and communicating with the ball groove on the fixed column 1, a side positioning column 6 slidably connected within the positioning holes 5, a slot 7 on the side positioning column 6, an inclined groove 8 communicating with the slot 7 on the side positioning column 6, and multiple pull rods 9 slidably connected within the fixed column 1 corresponding one-to-one with the side positioning columns 6 and fixed to the lower positioning column 4, and inserts 10 inserted into the corresponding inclined grooves 8 on the pull rods 9.

[0023] For ease of use, the upper end face of the lower positioning post 4 and the inner end faces of the multiple side positioning posts 6 are spherical surfaces that can fit against the surface of the hinge ball 2.

[0024] To facilitate the movement of the side positioning column 6, the inclined groove 8 is positioned such that, with the axis of the fixed column 1 as the inner end, the inclined groove 8 is lower on the inside and higher on the outside.

[0025] To enable the lower positioning post 4 to move up and down, a rotating cylinder 11 is threaded onto the fixed post 1. A pull-down groove 12 is coaxially formed inside the rotating cylinder 11. A receiving groove 13 is coaxially formed inside the fixed post 1. Moving grooves 14 in the vertical direction and connected to the receiving groove 13 are formed at the front and rear ends of the fixed post 1, respectively. Connecting rods 15 located in the pull-down groove 12 and inserted into the moving groove 14 are provided at the front and rear ends of the lower fixed post, respectively.

[0026] To enhance the fixing effect, rubber pads are provided on the arc-shaped surfaces of the lower positioning post 4 and the side positioning post 6.

[0027] To facilitate heat dissipation, the outer surface of the lamp 3 is provided with a plurality of evenly distributed heat dissipation fins 16.

[0028] To facilitate the installation of the fixing column 1, the lower end of the fixing column 1 is provided with a mounting plate 17.

[0029] When using this utility model, when it is necessary to adjust the projection angle of the lamp 3, the operator rotates the rotating cylinder 11 to drive the rotating cylinder 11 to rotate downward relative to the fixed column 1. At this time, the pull-down groove 12 inside the rotating cylinder 11 drives the connecting rod 15 to move downward, so that the lower positioning column 4 fixed to the connecting rod 15 moves downward and disengages from the contact with the hinge ball 2. At the same time, the lower positioning column 4 drives the insertion column 10 on it to slide downward in the corresponding inclined groove 8 through the pull rod 9. Because the inclined groove 8 is arranged with the inner side lower than the outer side, the downward movement of the insertion post 10 will be converted into a radial outward pushing force on the opposite side positioning post 6, forcing all the side positioning posts 6 to slide outward along the positioning hole 5 at the same time. After the side positioning posts 6 slide outward a certain distance, they will disengage from the hinge ball 2, thereby releasing their lateral constraint on the hinge ball 2. At this point, the hinge ball 2 is in a completely relaxed state in the ball groove. The operator can directly move the connecting post and the lamp 3 above by hand to make the hinge ball 2 rotate in any direction in the ball groove, thereby realizing the rapid and stepless adjustment of the illumination angle. Once the lamp 3 is adjusted to the target angle, the rotating cylinder 11 is rotated in the opposite direction to screw it upwards, which in turn drives the connecting rod 15 to move upwards, thereby pushing the lower positioning post 4 to reset upwards, so that its spherical surface tightly presses against the lower part of the hinge ball 2. At the same time, the lower positioning post 4 moves upwards and applies an upward pulling force to the inclined groove 8 through the pull rod 9 and the insert post 10. Due to the action of the inclined surface, the side positioning post 6 is pulled back radially inwards, and the spherical surface at its inner end firmly presses the hinge ball 2 from the side. Under the coordinated clamping action of the lower positioning post 4 and multiple side positioning posts 6, the hinge ball 2 is stably locked in the current position, completing the rapid fixation of the angle of the lamp 3.

[0030] Compared with existing technologies, the beneficial effects of this utility model are as follows: The linkage between the axial movement of the lower positioning column and the radial movement of multiple side positioning columns forms a coordinated clamping and locking action on the articulated ball. This mechanism can be driven by the rotation of a single rotating cylinder, allowing the user to instantly release all constraints by simply rotating the cylinder when adjusting the lamp angle. This enables the lamp to achieve smooth, stepless adjustment in any direction within the ball-joint connection range. After selecting the angle, by rotating the cylinder in the opposite direction, the lower and side positioning columns apply uniformly increasing clamping force from below and the side, stably and reliably locking the articulated ball in the target position. This solves the inherent defects of traditional projection lamp adjustment, such as requiring multiple steps, low efficiency, and easy loosening and displacement after locking. It achieves rapid adjustment and stable fixation, greatly improving operational convenience, positioning accuracy, and the reliability of the equipment in long-term use. This structure is simple, novel in concept, easy to use, and highly practical.

[0031] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model.

[0032] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-angle adjustable projection lamp, comprising a fixed column (1) along the vertical axis, characterized in that, The upper end of the fixed column (1) is provided with a ball groove, and the ball groove is connected to a connecting column via a hinged ball (2). The upper end of the connecting column is provided with a lamp (3). The fixed column (1) is coaxially slidably connected with a lower positioning column (4) that can be inserted into the ball groove. The fixed column (1) is provided with multiple positioning holes (5) that are evenly distributed along its circumference and communicate with the ball groove. The positioning holes (5) are slidably connected with a side positioning column (6). The side positioning column (6) is provided with a slot (7). The side positioning column (6) is provided with an inclined groove (8) that communicates with the slot (7). The fixed column (1) is slidably connected with multiple pull rods (9) that correspond one-to-one with the side positioning column (6) and are fixed to the lower positioning column (4). The pull rods (9) are provided with inserts (10) that are inserted into the corresponding inclined grooves (8).

2. The multi-angle adjustable projection lamp according to claim 1, characterized in that, The upper end face of the lower positioning post (4) and the inner end faces of the multiple side positioning posts (6) are spherical surfaces that can fit against the surface of the hinge ball (2).

3. The multi-angle adjustable projection lamp according to claim 1, characterized in that, The inclined position of the inclined groove (8) is: with the axis of the fixed column (1) as the inner end, the inclined groove (8) is lower inside and higher outside.

4. A multi-angle adjustable projection lamp according to claim 1, characterized in that, The fixed column (1) is threaded with a rotating cylinder (11), and a pull-down groove (12) is coaxially opened inside the rotating cylinder (11). A receiving groove (13) is coaxially opened inside the fixed column (1). The front and rear ends of the fixed column (1) are respectively provided with moving grooves (14) in the up and down direction and connected to the receiving groove (13). The front and rear ends of the lower fixed column are respectively provided with connecting rods (15) located in the pull-down groove (12) and inserted into the moving groove (14).

5. A multi-angle adjustable projection lamp according to claim 1, characterized in that, Rubber pads are provided on the arc-shaped surfaces of the lower positioning post (4) and the side positioning post (6).

6. A multi-angle adjustable projection lamp according to claim 1, characterized in that, The lamp (3) has multiple evenly distributed heat dissipation fins (16) on its outer surface.

7. A multi-angle adjustable projection lamp according to claim 1, characterized in that, The fixed column (1) is provided with a mounting plate (17) at its lower end.

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