A multi-card point positioning gimbal track lamp head

Abstract

The utility model discloses a universal joint track lamp holder of multi -card point positioning belongs to lighting lamp technical field, this lamp holder includes the base of installing on the track ontology, rotatable and contained in the connecting rod of base and the lamp holder ontology of pivotal connection, its angle positioning structure includes: be located on the threaded groove of base wall, be located on the multiple spherical groove of connecting rod outer wall wall and with the positioning bolt and the ball of cooperation of threaded groove, through the rotation positioning bolt and push the ball and selectively card into different spherical groove, realize the angle fixed of connecting rod. The utility model discloses through the mechanical clamping structure of ball and spherical groove, replaces traditional pure friction locking, solved the problem of inaccuracy of horizontal angle positioning, locking unreliable in the prior art, has the advantage of accurate positioning, gear clear, locking firm and reliable.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures technology, and in particular to a universal joint track lamp head with multi-point positioning. Background Technology

[0002] Track lights, as a modern lighting system, are widely used in commercial shops, exhibition halls, and homes due to their flexible installation and freely adjustable illumination angle. Track lights typically include a track body and track lamp heads that can slide and be positioned along the track body. The angle adjustment capability of the lamp head body is one of its main functions.

[0003] To achieve omnidirectional lighting, existing track lights often use a universal joint structure. This structure allows the light head to be adjusted in both the pitch and horizontal directions, thus projecting light precisely onto a designated area. After adjusting the horizontal angle, a locking mechanism is usually required to fix the light head at the currently selected angle to prevent unnecessary deflection.

[0004] Currently, the most common method for locking horizontal angles is a pure friction locking structure, such as tightening a screw to press the rotating parts. Although this method is simple, its disadvantages are also very obvious. The amount of locking force depends entirely on the operator's feel, making it difficult to ensure consistency. With long-term use or when subjected to external vibrations, the friction may weaken, causing the lamp head angle to slowly shift. This pure friction locking method lacks a sense of gear position, making it difficult to achieve precise and repeatable angle positioning. Each time it is readjusted, it is difficult to accurately restore the original position.

[0005] Therefore, this utility model proposes a multi-point positioning universal joint track lamp head to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems that existing track light heads often use a pure friction locking structure when adjusting the horizontal angle, such as inaccurate positioning, easy angle deflection after long-term use, and unreliable locking, this utility model aims to provide a universal joint track light head with improved structure that can effectively solve the above problems by multi-point positioning.

[0007] This utility model provides a multi-point positioning universal joint track lamp head, which is installed on the track body and includes a base, a connecting rod and a lamp head body. The base is slidably installed on the track body and serves as the basis for the movement and load-bearing of the entire lamp head device on the track. The connecting rod is rotatably accommodated inside the base and provides horizontal rotational support for the lamp head body. The lamp head body is pivotally connected to the upper end of the connecting rod for installing and supporting the lighting source.

[0008] To achieve precise multi-point angular positioning, the track light head also includes a positioning component. The side wall of the base is machined with threaded grooves that mate with the threads of the positioning bolts. Correspondingly, the outer peripheral wall of the connecting rod has multiple spherical grooves for a locking ball to engage. The positioning component consists of a positioning bolt and a locking ball. The locking ball is movably positioned at the end of the positioning bolt facing the connecting rod. When the positioning bolt is screwed into the threaded groove, its end pushes the locking ball, selectively engaging it in one of the spherical grooves. Through this mechanical engagement, a stable rotational angle is fixed between the base and the connecting rod. This design, using mechanical locking rather than pure friction, significantly improves the accuracy and long-term reliability of horizontal angular positioning.

[0009] Preferably, in order to achieve stable movement of the lamp head on the track body, the bottom of the base is also provided with a slider, and the track body is correspondingly provided with a groove for the slider to slide into. The slider and the groove form a precise sliding fit to ensure that the lamp head moves smoothly and stably on the track.

[0010] Preferably, to achieve the fixing of the lamp head at any position on the track, the track lamp head also includes a fixing component, which consists of a knob, a threaded rod, and a pressing block. A base plate is connected to the base, the knob is located on the outside of the base plate, the threaded rod is coaxially connected to the knob and passes through the base plate, and the pressing block is threaded to the end of the threaded rod and faces the track body. By rotating the knob, the threaded rod drives the pressing block to move, thereby squeezing or releasing the track body, thus firmly fixing or releasing the lamp head.

[0011] Preferably, in order to adjust the pitch angle of the lamp head body, the track lamp head also includes a connecting plate and fastening bolts. The lamp head body is fixed to one end of the connecting plate, and the other end of the connecting plate is locked or released from the connecting rod by fastening bolts. Loosening the fastening bolts allows relative rotation between the connecting plate and the connecting rod, thereby adjusting the up and down angle of the lamp head body, while tightening them locks the angle.

[0012] Preferably, to facilitate the installation of lighting sources, a lamp holder is fixedly installed inside the lamp holder body. The lamp holder serves as a standardized interface and can be directly used to install various compatible lighting bulbs or modules.

[0013] Preferably, to prevent the connecting rod from accidentally detaching from the base, a limiting plate is also fixedly connected to the top of the base. The limiting plate partially covers the top of the connecting rod, and its inner hole size is designed to cover the connecting rod without interfering with its rotation. This effectively prevents the connecting rod from detaching from the base when rotating or subjected to axial force, thus improving safety in use.

[0014] Preferably, to enhance the locking stability and reliability of the positioning components, the positioning components are arranged in pairs on the base at radially opposite positions, that is, a set of positioning bolts and locking balls are installed on each side of the base to form bidirectional support and locking, making the horizontal positioning of the connecting rod more robust.

[0015] Preferably, to provide clear and repeatable level adjustment positions, multiple spherical grooves on the outer peripheral wall of the connecting rod are evenly distributed along the circumference of the connecting rod. This evenly distributed design ensures that each level angle adjustment can be performed at a fixed angular interval, making it convenient for users to accurately adjust and reset.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of inaccurate positioning, easy angle deflection and unreliable locking caused by the use of pure friction locking in the horizontal direction of the universal joint track lamp head in the prior art by setting a locking ball driven by a positioning bolt on the base and opening multiple spherical grooves that cooperate with it on the rotatable connecting rod. By selectively locking the locking ball into different spherical grooves, the invention achieves the technical effect of multi-point, accurate, repeatable positioning and stable and reliable locking of horizontal lighting angle.

[0017] 2. This utility model independently designs the friction locking structure for adjusting the pitch angle of the light, the locking point positioning structure for adjusting the horizontal angle, and the compression locking structure for moving and fixing on the track. This ensures that the various adjustment functions do not interfere with each other, achieving a clear overall structure, well-defined functional areas, and simple and intuitive operation logic.

[0018] 3. This utility model solves the problem that the connecting rod may come out of the base when it is frequently rotated or accidentally pulled by adding a limiting plate to the top of the base, thereby improving the overall structural stability and safety of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a multi-point positioning universal joint track lamp head proposed in this utility model; Figure 2 This is a schematic diagram of the connecting rod of a universal joint track lamp head with multi-point positioning proposed in this utility model; Figure 3 This is a schematic diagram of the slider of a multi-point positioning universal joint track lamp head proposed in this utility model; Figure 4 This is a schematic diagram of the extrusion block of a universal joint track lamp head with multi-point positioning proposed in this utility model.

[0020] Legend: 1. Track body; 2. Base; 3. Base plate; 4. Slide groove; 5. Positioning assembly; 501. Positioning bolt; 502. Ball retainer; 503. Threaded groove; 504. Spherical groove; 6. Connecting rod; 7. Fastening bolt; 8. Connecting plate; 9. Fixing assembly; 901. Rotary knob; 902. Threaded rod; 903. Pressing block; 10. Slider; 11. Lamp holder; 12. Lamp head body; 13. Limiting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4 This utility model provides a multi-point positioning universal joint track light head, which aims to solve the problems of inaccurate positioning and unreliable locking of existing universal joint track light heads when adjusting the horizontal angle.

[0023] like Figure 1 As shown, the multi-point positioning universal joint track lamp head is installed on the track body 1, which includes a base 2, a connecting rod 6, and a lamp head body 12. The base 2 is slidably installed on the track body 1, the connecting rod 6 is rotatably accommodated inside the base 2, and the lamp head body 12 is pivotally connected to the upper end of the connecting rod 6.

[0024] To achieve precise angular positioning of the connecting rod 6 relative to the base 2, the track light head is equipped with a positioning component 5, as shown in the reference. Figure 1 and Figure 2 The positioning component 5 coordinates the relative positional relationship between the base 2 and the connecting rod 6. Specifically, refer to... Figure 1 , Figure 2 and Figure 3The base 2 has radially penetrating threaded grooves 503 machined on its side wall, and the connecting rod 6 has a number of spherical grooves 504 arranged in a ring array on its outer peripheral wall. Each spherical groove 504 is a recessed spherical groove. The positioning component 5 includes a positioning bolt 501 and a retaining ball 502. The retaining ball 502 is a steel ball or a hard alloy ball. The positioning bolt 501 is a columnar body with threads on its outer surface, and its threads are engaged in the threaded groove 503. In the assembled state, the retaining ball 502 is movably positioned between the inner end of the positioning bolt 501 facing the connecting rod 6 and the outer wall of the connecting rod 6. When the operator screws the positioning bolt 501 inward, the end face of the positioning bolt 501 acts as a thrust surface, pushing the retaining ball 502 to move radially inward and finally forcibly engaging it in one of the spherical grooves 504. This precise engagement of the ball and the groove completes the firm positioning of the connecting rod 6 relative to the base 2 at a specific angle.

[0025] To enable the entire device to slide and lock on the track body 1, the multi-point positioning universal joint track light head is also equipped with corresponding sliding and fixing structures. Please refer to these details. Figure 1 , Figure 3 and Figure 4 The following is a detailed explanation of this part of the structure: Reference Figure 3 To enable smooth movement of the base 2 on the track body 1, a slider 10 is fixedly connected to the bottom of the base 2. A corresponding groove 4 is provided on the track body 1 for the slider 10 to slide into. The cross-sectional shapes of the slider 10 and the groove 4 are matched, forming a stable sliding fit. This allows the entire lamp head device to slide freely back and forth along the length of the track body 1. To reliably fix the lamp head at any position on the track body 1, the track lamp head also includes a fixing component 9. (Refer to...) Figure 1 and Figure 4 The fixing component 9 includes a knob 901, a threaded rod 902, and a pressing block 903. A base plate 3 is also connected to the base 2. The knob 901 is located on the outside of the base plate 3 for easy operation by the user. The threaded rod 902 is coaxially connected to the knob 901 and extends through the base plate 3 to the side facing the track body 1. The pressing block 903 is threaded to the end of the threaded rod 902 and its pressing surface faces the track body 1. When it is necessary to fix the position of the lamp head, the knob 901 is rotated inward, and the threaded rod 902 drives the pressing block 903 to move inward until it is tightly pressed and abuts against the side wall of the track body 1. The huge friction force generated thereby firmly locks the base 2 in the current position. Rotating the knob 901 in the opposite direction will release the pressing block 903, release the pressure on the track body 1, and allow the base 2 to slide along the track again.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to achieve pitch angle adjustment of the lamp head body 12, the track lamp head also includes a connecting plate 8 and fastening bolts 7, such as... Figure 1 As shown, the lamp head body 12 is fixed to one end of the connecting plate 8, and the other end of the connecting plate 8 is locked or released from the connecting rod 6 by fastening bolts 7. When the fastening bolts 7 are loosened, the friction between the connecting plate 8 and the connecting rod 6 is reduced, allowing the lamp head body 12 to swing freely around the axis of the fastening bolts 7. After adjusting to a suitable angle, tightening the fastening bolts 7 again will increase the friction and fix the light at the current pitch angle.

[0027] Furthermore, such as Figure 1 As shown, a lamp holder 11 is also fixedly installed inside the lamp holder body 12. The lamp holder 11 is used to directly install the light source of the lighting lamp and provide lighting function for the entire device.

[0028] As an optimized security structure, such as Figure 1 As shown, a limiting plate 13 is also fixedly connected to the top of the base 2. The limiting plate 13 is a plate with a central through hole, which partially covers the top of the connecting rod 6. The diameter of the central through hole is smaller than the maximum outer diameter of the connection end between the connecting rod 6 and the connecting plate 8, thereby forming a physical stop and effectively preventing the connecting rod 6 from coming out of the base 2 when it rotates or is subjected to an unexpected axial external force.

[0029] To enhance positioning stability and locking force, in a preferred embodiment, positioning components 5 are arranged in pairs on the base 2 at radially opposite positions. That is, independent positioning bolts 501, ball bearings 502 and threaded grooves 503 are provided on opposite sides of the base 2. The two positioning components 5 work together to form a bidirectional locking force on the connecting rod 6, making it more stable after positioning.

[0030] As a specific structure for achieving multi-point positioning, such as Figure 2 As shown, multiple spherical grooves 504 on the outer peripheral wall of the connecting rod 6 are evenly distributed along the circumference of the connecting rod 6. This evenly distributed array arrangement provides multiple preset, equally spaced angles for the horizontal rotation of the connecting rod 6, making the angle adjustment and positioning highly repeatable and accurate.

[0031] The working principle of this multi-point positioning universal joint track lamp head is as follows: When it is necessary to adjust the pitch angle of the light, loosen the fastening bolt 7 outwards. The locking force between the connecting plate 8 and the connecting rod 6 will decrease. At this time, the lamp head body 12, which is fixed to the connecting plate 8, can swing up and down freely. After adjusting to the appropriate pitch angle, tighten the fastening bolt 7 inwards to increase the friction between the connecting plate 8 and the connecting rod 6, thereby stably fixing the lamp head body 12 at the current angle.

[0032] When it is necessary to adjust the horizontal illumination angle of the light, rotate the positioning bolts 501 on both sides of the base 2 outward. The positioning bolts 501 move outward in the threaded grooves 503, so that their inner ends no longer exert a pushing force on the retaining ball 502. The retaining ball 502 then disengages from the spherical groove 504 of the connecting rod 6. At this time, the connecting rod 6 is released from the angle lock and can rotate freely horizontally within the base 2. Under the limiting action of the limiting plate 13, the connecting rod 6 can rotate stably without coming out. When the connecting rod 6 drives the lamp head body 12 to rotate to the preset angle corresponding to another spherical groove 504, rotate the positioning bolts 501 inward again. The positioning bolts 501 advance and push the retaining ball 502 to forcefully re-engage into the corresponding spherical groove 504. Through this precise engagement of the ball and the groove, multi-point, accurate and reliable positioning of the horizontal illumination angle is achieved.

[0033] When it is necessary to adjust the installation position of the lamp on the track body 1, rotate the knobs 901 on both sides of the base plate 3 outward. The knobs 901 drive the pressing block 903 to move backward through the threaded rod 902, releasing the pressing block 903 from the track body 1. At this time, the base 2 can slide freely along the length of the track body 1 to a new position under the sliding cooperation of the slider 10 and the slide groove 4. After reaching the designated position, rotate the knobs 901 inward in the opposite direction. The pressing block 903 moves forward under the drive of the threaded rod 902 and finally presses the track body 1 tightly, thereby fixing the entire lamp head device firmly.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A multi-point positioning universal joint track light head, which is installed on the track body (1), comprising: The base (2) is slidably mounted on the track body (1); A connecting rod (6) is rotatably housed within the base (2); The lamp holder body (12) is pivotally connected to the upper end of the connecting rod (6); The track light head is characterized in that it further includes a positioning component (5), the positioning component (5) includes a positioning bolt (501) and a retaining ball (502), the wall of the base (2) is provided with a threaded groove (503) that is threadedly engaged with the positioning bolt (501), and the outer peripheral wall of the connecting rod (6) is provided with a plurality of spherical grooves (504) for the retaining ball (502) to be inserted into. The ball (502) is movably disposed at one end of the positioning bolt (501) facing the connecting rod (6). When the positioning bolt (501) is screwed into the threaded groove (503), its end pushes the ball (502) and selectively engages it in one of the spherical grooves (504) to achieve angular positioning of the connecting rod (6) relative to the base (2).

2. The universal joint track light head with multi-point positioning according to claim 1, characterized in that, The bottom of the base (2) is also provided with a slider (10), and the track body (1) is provided with a groove (4) for the slider (10) to slide into.

3. A universal joint track light head with multi-point positioning according to claim 2, characterized in that, It also includes a fixing component (9) for fixing the base (2) to the track body (1). The fixing component (9) includes a knob (901), a threaded rod (902) and a pressing block (903). A base plate (3) is connected to the base (2). The knob (901) is located on the outside of the base plate (3). The threaded rod (902) is coaxially connected to the knob (901) and passes through the base plate (3). The pressing block (903) is threaded to the end of the threaded rod (902) and faces the track body (1).

4. A universal joint track light head with multi-point positioning according to claim 1, characterized in that, It also includes a connecting plate (8) and a fastening bolt (7). The lamp head body (12) is fixed to one end of the connecting plate (8), and the other end of the connecting plate (8) is locked or released to the connecting rod (6) by the fastening bolt (7) to adjust the pitch angle of the lamp head body (12).

5. A universal joint track light head with multi-point positioning according to claim 1, characterized in that, The lamp holder body (12) is fixedly provided with a lamp holder (11) for installing a lighting lamp.

6. A universal joint track light head with multi-point positioning according to claim 1, characterized in that, A limiting plate (13) is also fixedly connected to the top of the base (2). The limiting plate (13) partially covers the connecting rod (6) to prevent the connecting rod (6) from coming out of the base (2).

7. A universal joint track light head with multi-point positioning according to claim 1, characterized in that, The positioning components (5) are arranged in pairs on the base (2) at radially opposite positions.

8. A universal joint track light head with multi-point positioning according to claim 1, characterized in that, The plurality of the spherical grooves (504) are evenly distributed along the circumference of the connecting rod (6).

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