A rail head

Abstract

The utility model discloses a guide rail head, including bottom box, box cover, ground wire elastic sheet, first and second guide rail head elastic sheet, rotary buckle spare and rotary connecting piece. Ground wire elastic sheet is installed in the bottom box one side vertically. Two guide rail head elastic sheets are set up horizontally, and are separated and are distributed before and after by the vertically installed rotary buckle spare. Rotary buckle spare is equipped with rotary drive part, and through rotation can synchronous drive two elastic sheets and project or retract the bottom box. Rotary drive part has specific first inclined plane, second inclined plane and arc surface, is used for with elastic sheet and is pasted or is resisted and touches, realizes stable drive. Bottom box and rotary connecting piece between are equipped with locking assembly, are used for to the angle positioning and locking of rotary connecting piece. The utility model discloses through optimizing internal layout realizes compact structure, and gives consideration to 220V high pressure adaptation and miniaturization demand.

Description

Technical Field

[0001] This utility model relates to the field of guide rail head technology, and specifically to a guide rail head. Background Technology

[0002] The guide rail head is a key component of modern guide rail lighting systems, primarily used to achieve rapid electrical connection and mechanical fixation between lighting equipment and the guide rail. In the guide rail head market, shorter and narrower guide rail heads are typically only suitable for low-voltage 24V, 36V, and 48V models, making it difficult to simultaneously meet the requirements of high-voltage 220V applications while maintaining a small size.

[0003] Existing small-sized guide rail heads, limited by space layout design, often cannot meet the safety distance and insulation requirements of high-voltage scenarios. The conductive components for live, neutral, and ground wires are often densely arranged, lacking physical isolation and insulation protection structures, making them prone to short circuits and arcing due to vibration and wear. Furthermore, to adapt to 220V high-voltage guide rail heads, they often employ a distributed component design, requiring additional independent conductive copper sheet fixing devices, rotation drive structures, and protective components, resulting in a larger overall size and making them unsuitable for miniaturized, embedded guide rail lighting scenarios.

[0004] With the continuous increase in demand for commercial lighting and home recessed lighting, how to achieve safe adaptation to 220V high-voltage scenarios while reducing the overall size of the guide rail head has become an important issue that needs to be addressed by those skilled in the art. Utility Model Content

[0005] This invention overcomes the shortcomings of the above-mentioned technologies and provides a guide rail head that, through a unique internal structure design and space utilization method, achieves the significant advantages of being able to adapt to high voltage 220V while maintaining a small size.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A guide rail head, comprising:

[0008] Bottom box 1;

[0009] Box lid 2, placed on top of bottom box 1;

[0010] The grounding spring 3 is vertically installed inside one side of the bottom box 1, with its top part protruding from the box cover 2;

[0011] The first guide rail head spring piece 4 is set to extend laterally, and can extend forward or retract backward within the bottom box 1;

[0012] The second guide rail head spring piece 5 is set to extend laterally, and can extend backward or retract forward within the bottom box 1;

[0013] The rotating buckle 6 is vertically installed inside the other side of the bottom box 1, and is used to drive the first guide rail head spring 4 and the second guide rail head spring 5 to extend out of the bottom box 1 or retract into the bottom box 1 by rotation.

[0014] Rotary connector 7 is fitted onto the bottom of base box 1;

[0015] The first guide rail head spring 4 and the second guide rail head spring 5 are located inside the bottom box 1 and are respectively attached to the rotating buckle 6, and are distributed front and back with the rotating buckle 6 as the dividing center.

[0016] Preferably, the rotating buckle 6 is an integrated injection molded part. The rotating buckle 6 is provided from top to bottom as follows: a limiting end 61 for limiting and locking into the box cover 2, a rotating drive part 62 that fits with the two guide rail head spring pieces, a first step part 63 that helps support the two guide rail head spring pieces, a support part 64 that fits with the inner bottom surface of the bottom box 1 to provide support, and an operating part 65 that passes through the bottom box 1 and has its bottom surface exposed outside the bottom box 1; the operating part 65 has a slot 66 formed on its exposed bottom surface of the bottom box 1; the bottom box 1 has strip-shaped through holes 11 at symmetrical positions on its front and rear sides for the corresponding guide rail head spring pieces to extend out.

[0017] Preferably, the rotary drive unit 62 is clamped by the two guide rail head springs in the initial lateral state, and when rotated to the longitudinal state, the two guide rail head springs are opened and the two guide rail head springs extend out of the bottom box 1 through the corresponding strip-shaped through hole 11; the rotary drive unit 62 has two first inclined surfaces 67 arranged symmetrically in a figure-eight pattern along the longitudinal direction on the front side when in the lateral state, and two second inclined surfaces 68 arranged symmetrically in an inverted figure-eight pattern along the longitudinal direction on the rear side when in the lateral state, and two arc-shaped surfaces 69 are connected between the first inclined surfaces 67 and the second inclined surfaces 68 on the same side of the left and right sides respectively; the first inclined surfaces 67 and the second inclined surfaces 68 are used to fit with the corresponding guide rail head springs, and the two arc-shaped surfaces 69 are used to abut against the corresponding guide rail head springs when rotated to the longitudinal state.

[0018] Preferably, the first guide rail head spring 4 is provided with a first spring portion 41 that extends and retracts, a first oblique extension portion 42 that extends forward obliquely from the first spring portion 41, a first lateral extension portion 43 that extends laterally from the first oblique extension portion 42, and a first connecting portion 44 that extends rearward from the first lateral extension portion 43; the second guide rail head spring 5 is provided with a second spring portion 51 that extends and retracts, a second oblique extension portion 52 that extends forward obliquely from the second spring portion 51, a second lateral extension portion 53 that extends laterally from the second oblique extension portion 52, and a second connecting portion 54 that extends forward from the second lateral extension portion 53; the first lateral extension portion 43 is longer than the second lateral extension portion 53, and the first connecting portion 44 and the second connecting portion 54 are arranged obliquely and alternately.

[0019] Preferably, the base box 1 has a first strip-shaped guide groove 12 formed at the first lateral extension 43 mounting position, a second strip-shaped guide groove 13 formed at the second lateral extension 53 mounting position, a first mounting groove 14 divided at the first connecting part 44 mounting position, and a second mounting groove 15 divided at the second connecting part 54 mounting position; the first mounting groove 14 and the second mounting groove 15 are arranged obliquely and alternately, and a first screw hole post 16 with a screw hole is formed in the first mounting groove 14, and a second screw hole post 17 with a screw hole is formed in the second mounting groove 15. The first guide rail head spring piece 4 and the second guide rail head spring piece 5 are connected to the corresponding screw hole post by screws.

[0020] Preferably, the cover 2 is provided with a first through hole 21 through which the top of the ground wire spring 3 is limited and passed, and the bottom of the ground wire spring 3 is a mounting part 31 in the shape of a vertical plate; the bottom box 1 protrudes upward on the other side of its inner bottom wall to form a first snap-fit ​​member 18 with a snap-fit ​​groove for the mounting part 31 to be snapped into, and the cover 2 protrudes downward to form a second snap-fit ​​member 22 with a snap-fit ​​groove that snaps downward onto the top surface of the mounting part 31.

[0021] Preferably, a locking assembly 8 is provided between the bottom box 1 and the rotating connector 7, including: a rotation stop 9 and a rotation stop plate 10; the bottom of the bottom box 1 has a first opening 19, which protrudes inward to form an annular step portion 110, and the rotation stop 9 is placed on it; the rotating connector 7 passes through the first opening 19, and the rotation stop 9 is clamped between the annular step portion 110 and the top of the rotating connector 7; the bottom wall of the bottom box 1 has a planar step portion 111 formed around the first opening 19, and the rotation stop plate 10 is installed there; the rotation stop plate 10 has a second through hole 103, and the hole wall has a locking tooth 104 protruding outward; the rotation stop 9 has a rotating tooth 91 that protrudes upward and is located in the second through hole 103 and close to the hole wall, and the locking tooth 104 can lock the rotating tooth 91 when it rotates into place.

[0022] Preferably, the bottom box 1 has a third screw post 112 on the side near the anti-rotation plate 10, and a first screw hole 113 on one corner of the anti-rotation plate 10. The third screw post 112 and the first screw hole 113 are connected by a wire clamp 118, and the bottom box 1 forms a wire threading limiting space below the wire clamp 118.

[0023] Preferably, one side of the bottom box 1 is provided with multiple latches 101, and the box cover 2 is provided with hooks 102 that engage with the multiple latches 101; one or more elastic buckles 105 are also provided on the side of the bottom box 1.

[0024] Preferably, the first guide head spring 4 is a neutral wire spring, the second guide head spring 5 is a live wire spring, and the bottom wall of the bottom box 1 is provided with a ground wire mark 115 near the ground wire spring 3, a neutral wire mark 116 near the neutral wire spring 4, and a live wire mark 117 near the live wire spring 5.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] 1. This design fully utilizes the vertical / horizontal staggered layout of the spring clips and the vertical integration design of the rotating fasteners to achieve a compact size of 16mm in length by making full use of the longitudinal and transverse space of the base box. At the same time, the arrangement of the neutral, live, and ground spring clips ensures the safety of 220V high-voltage power supply, breaking through the low-voltage limitations of traditional small guide rail heads and achieving a balance between high-voltage adaptability and miniaturization.

[0027] 2. The rotating buckle is driven by a slotted groove to extend and retract the two springs synchronously, and the elastic buckle enables the guide rail to be quickly snapped in place; the box cover buckle connection, spring screw fixing and bottom wire threading limit design simplify the assembly and maintenance process, requiring no additional complicated tools, and making operation and assembly efficient and convenient.

[0028] 3. The neutral, live, and ground markings in this case are clear to avoid wiring errors. The locking component is connected and locked by the cooperation of rotating teeth and locking teeth. The double-slot fixing of the ground wire spring is vibration-proof and prevents it from falling off. Multiple protections are suitable for complex use scenarios such as outdoor use. Attached Figure Description

[0029] Figure 1 This is one of the three-dimensional structural diagrams of the guide rail head in this case.

[0030] Figure 2 This is the second three-dimensional structural diagram of the guide rail head in this case.

[0031] Figure 3 This is an exploded structural diagram showing the separation of the bottom box and the cover of the guide rail head in this case.

[0032] Figure 4 This is a structural schematic diagram of the guide rail base box in this case.

[0033] Figure 5 This is a structural diagram showing that the guide rail head conceals the bottom box in this case. Detailed Implementation

[0034] The following embodiments further illustrate the features of this utility model and other related features in detail, so as to facilitate understanding by those skilled in the art:

[0035] like Figures 1 to 5 A guide rail head, characterized in that it comprises:

[0036] Base box 1, which is a hollow cuboid structure.

[0037] The lid 2 covers the top of the base box 1 and is detachably connected to the top of the base box 1 via a snap-fit ​​structure. Specifically, one side of the base box 1 has multiple latches 101, and the lid 2 has hooks 102 that engage with the latches 101. This snap-fit ​​connection method allows for convenient installation and disassembly without requiring additional connecting parts, effectively saving space and laying the foundation for a smaller overall size.

[0038] The grounding spring 3 is vertically installed inside the right side of the bottom box 1, with its top part protruding beyond the upper surface of the box cover 2 to facilitate conductive connection with the external light fixture rail.

[0039] The first guide rail head spring 4 is arranged laterally and can extend forward or retract backward within the bottom box 1. It can serve as a neutral wire spring, facilitating conductive connection with external lighting rails.

[0040] The second guide rail head spring 5 is arranged laterally and can extend backward or retract forward inside the bottom box 1. It can be used as a live wire spring to facilitate conductive connection with external lighting rails.

[0041] The rotating fastener 6 is vertically installed inside the left side of the base box 1. It is used to drive the first guide rail head spring 4 and the second guide rail head spring 5 to extend out of the base box 1 or retract into the base box 1 by rotation. In specific implementation, the rotating fastener 6 is an insulating component.

[0042] Rotary connector 7 is inserted into the bottom of the base box 1, and its bottom connecting part is exposed outside the bottom of the base box 1. It has external threads on its outer periphery for screwing the lamps for installation.

[0043] Among them, the first guide rail head spring 4 and the second guide rail head spring 5 are arranged laterally inside the left side of the bottom box 1, with the rotating buckle 6 as the center, and are located on the front and rear sides respectively.

[0044] As described above, the vertical installation of the ground wire spring 3 in this case reduces the occupancy of the horizontal space. The first guide rail spring 4 and the second guide rail spring 5 extend horizontally, serving as the neutral wire spring and the live wire spring, respectively. They are arranged horizontally inside the left side of the base box 1, centered on the rotating buckle 6, and located on the front and rear sides. This layout allows the springs to be arranged in an orderly manner within a limited space, avoiding mutual interference, while making full use of the horizontal and vertical space of the base box, achieving a compact structure. In addition, the ground wire spring 3 is installed on the right side, and the neutral wire spring and the live wire spring are installed on the left side. The front and rear distribution of the neutral wire spring and the live wire spring ensures that the three are installed separately to avoid safety hazards caused by squeezing contact, improving the electrical safety and reliability of the product, enabling the guide rail head of this case to operate stably in a high-voltage 220V environment; on the other hand, this distribution makes full use of the horizontal and vertical space for installation. The vertical mounting of the rotating latch 6 also reduces the lateral space occupied. A single rotation of the rotating latch 6 drives the first guide rail head spring 4 and the second guide rail head spring 5 to extend or retract together, achieving centralized control of the spring's movement and facilitating operation. Furthermore, the rotating latch 6 separates the two springs, preventing contact and potential electrical hazards. The rotating connector 7 is mounted on the bottom of the base box 1, with the bottom connection portion exposed. It has external threads on its outer circumference for screwing the lamp into place. Thus, the independent installation and arrangement of each component ensures the independent realization of its function while avoiding electrical hazards caused by spatial conflicts between components. This further optimizes internal space utilization and contributes to the reduction of overall size. It enables the manufacture of guide rail head structures that can adapt to 220V high voltage while achieving a smaller size, with an overall length of up to 16mm, giving it a significant advantage and broad application prospects in the market.

[0045] like Figure 3 and Figure 5As shown, in a preferred embodiment, the rotating buckle 6 is an integrated injection-molded part, comprising, from top to bottom: a limiting end 61, a rotating drive part 62, a first step part 63, a support part 64 (with a diameter larger than the first step part), and an operating part 65. The limiting end 61 engages with a pre-drilled hole on the top of the lid 2. The operating part 65 passes through the bottom box 1 and its bottom surface is exposed on the bottom box 1. A slot 66 is formed on the exposed bottom surface of the operating part 65, facilitating rotation by the user. The bottom box 1 has symmetrically positioned strip-shaped through holes 11 on its front and rear sides for corresponding guide rail head springs to extend out. In practice, the user inserts a flathead screwdriver into the slot 66 and rotates the operating part 65, causing the entire rotating latching part 6 to rotate. The limiting end 61 restricts the displacement of the rotating latching part 6, the rotation driving part 62 drives the spring to extend and retract through shape change, the first step part 63 prevents the spring from sinking during movement, the support part 64 provides a stable support platform to ensure stability during rotation, and the operating part 65 provides a force application point for external tools. The strip-shaped through hole 11 provides an extension and retraction channel for the first and second spring parts 41 and 51, while limiting the left and right offset of the spring.

[0046] As described above, the slot 66 of the rotating fastener 6 allows for compatibility with conventional tools, facilitating operation and lowering the user's learning curve. The strip-shaped through-hole design accommodates both guiding and limiting functions, preventing misalignment or jamming during spring extension and retraction, and ensuring contact accuracy. The rational arrangement of the limiting end 61, rotating drive part 62, first step part 63, support part 64, and operating part 65 ensures stable rotation operation. Furthermore, the vertical arrangement of the various parts of the rotating fastener from top to bottom achieves stable rotation while maintaining a compact vertical layout, significantly reducing the lateral space occupied.

[0047] like Figure 3 and Figure 5As shown, in a preferred embodiment, the rotary drive unit 62 is clamped by the two guide rail head springs in the initial lateral state, and when rotated to the longitudinal state, the two guide rail head springs are opened and the two guide rail head springs extend out of the bottom box 1 through the corresponding strip-shaped through hole 11. The rotary drive unit 62 has two first inclined surfaces 67 arranged symmetrically in a figure-eight pattern along the longitudinal direction on the front side when in the lateral state, and two second inclined surfaces 68 arranged symmetrically in an inverted figure-eight pattern along the longitudinal direction on the rear side when in the lateral state. An arc-shaped surface 69 is connected between the first inclined surface 67 and the second inclined surface 68 on the same side of the left and right sides, respectively. The first inclined surface 67 and the second inclined surface 68 are used to fit with the corresponding guide rail head springs, and the arc-shaped surface 69 is used to abut against the corresponding guide rail head springs when rotated to the longitudinal state. In the initial lateral position, the first and second inclined surfaces on the left side are in contact with the inner sides of the first and second guide head springs, respectively, and the springs are in a retracted state. When the rotating buckle 6 rotates 90° to the longitudinal position, the arc-shaped surface 69 gradually contacts the spring, and the spring is smoothly opened and protruded through the strip-shaped through hole 11 by the progressive compression of the arc surface. When rotating in the opposite direction to the lateral position, the first and second inclined surfaces on the left side re-apply to the spring, and the spring retracts. Alternatively, when rotating forward to the lateral position, the first and second inclined surfaces on the right side can also apply to the spring, and the spring retracts.

[0048] As described above, the fitting arrangement of the first and second inclined surfaces in this case provides support and guidance for the spring sheet, preventing accidental extension, contraction, and displacement; the curved surface acts as a driving part to open the spring sheet, while reducing wear on the spring sheet and extending its service life.

[0049] like Figure 3 and Figure 5 As shown, in a preferred embodiment, the first guide rail head spring 4 is provided with a first spring portion 41 that can extend and retract, a first oblique extension portion 42 that extends forward obliquely from the first spring portion 41, a first lateral extension portion 43 that extends laterally from the first oblique extension portion 42, and a first connecting portion 44 that extends backward from the first lateral extension portion 43; the second guide rail head spring 5 is provided with a second spring portion 51 that can extend and retract, a second oblique extension portion 52 that extends forward obliquely from the second spring portion 51, a second lateral extension portion 53 that extends laterally from the second oblique extension portion 52, and a second connecting portion 54 that extends forward from the second lateral extension portion 53; the first lateral extension portion 43 is longer than the second lateral extension portion 53, and the first connecting portion 44 and the second connecting portion 54 are arranged obliquely and alternately, specifically forming a diagonal distribution of one in front and one behind, one on the left and one on the right. In this way, the spring is fixed by the connecting part, and the oblique extension provides elastic deformation space; the lateral extension plays a guiding and limiting role in the installation, and through the length difference between the first lateral extension and the second lateral extension, the spring is staggered, which further saves installation space.

[0050] like Figure 4As shown, in a preferred embodiment, the base box 1 has a first strip-shaped guide groove 12 formed at the mounting position of the first lateral extension 43, a second strip-shaped guide groove 13 formed at the mounting position of the second lateral extension 53, a first mounting groove 14 divided at the mounting position of the first connecting part 44, and a second mounting groove 15 divided at the mounting position of the second connecting part 54. The first mounting groove 14 and the second mounting groove 15 are arranged obliquely and alternately, and a first screw post 16 with a screw hole is formed in the first mounting groove 14, and a second screw post 17 with a screw hole is formed in the second mounting groove 15. The first guide rail head spring 4 and the second guide rail head spring 5 are connected to the corresponding screw post by screw installation. In this way, the first strip-shaped guide groove 12 and the second strip-shaped guide groove 13 provide precise guidance for the installation of the first guide rail head spring 4 and the second guide rail head spring 5, avoiding the spring movement deviation. The setting of the first screw post 16 and the second screw post 17 allows the first guide rail head spring 4 and the second guide rail head spring 5 to be assembled and connected by screw fixing, preventing loosening after long-term use and ensuring electrical conductivity stability. The first mounting slot 14 and the second mounting slot 15 are arranged diagonally and alternately, which makes full use of the space inside the bottom box 1 and keeps the two springs independent so that they do not affect each other, making it easy to remove and replace the springs individually.

[0051] like Figure 3 and Figure 5 As shown, in a preferred embodiment, the cover 2 has a first through hole 21 for the top of the grounding spring 3 to pass through, and the bottom of the grounding spring 3 is a mounting part 31 in the shape of a vertical plate. The bottom box 1 has a first snap-fit ​​member 18 with a slot for the mounting part 31 to be inserted into, which protrudes upward on the other side of its inner bottom wall. The cover 2 has a second snap-fit ​​member 22 with a slot that snaps downward onto the top surface of the mounting part 31. In specific implementation, the mounting part 31 of the grounding spring 3 is inserted into the first snap-fit ​​member 18 of the bottom box 1. After the cover 2 is closed, the second snap-fit ​​member 22 presses downward against the top surface of the mounting part 31 to fix the grounding spring. The top is exposed through the first through hole 21 and contacts the grounding end of the guide rail. In this way, the double slots form a fixed structure that fits in the upper and lower parts, ensuring that the grounding spring is firmly installed, preventing vibration and falling off, and improving grounding reliability. At the same time, it further utilizes vertical space without increasing the occupation of horizontal space. In addition, the first through hole and the ground wire spring are precisely matched to prevent poor contact caused by shaking.

[0052] like Figure 3 and Figure 4 as well as Figure 5As shown, in a preferred embodiment, a locking assembly for locking or releasing the rotating connector 7 is provided between the base box 1 and the rotating connector 7. The locking assembly includes an anti-rotation disc 9 and an anti-rotation plate 10. The bottom of the base box 1 has a first opening 19, and an annular step portion 110 is formed by protruding inward around the circumference of the first opening 19. The anti-rotation disc 9 is placed on the annular step portion 110. The rotating connector 7 passes through the first opening 19, so that the anti-rotation disc 9 is sandwiched between the annular step portion 110 and the top of the rotating connector 7, realizing the initial positioning and installation of the anti-rotation disc 9. The base box 1 has a planar step portion 111 formed around the first opening 19 on its inner bottom wall. The anti-rotation plate 10 is installed on the planar step portion 111, completing the installation of the anti-rotation plate 10 inside the base box 1. The anti-rotation plate 10 forms a second through hole 103 and a retaining tooth 104 protrudes inward from the hole wall. The anti-rotation disk 9 forms a rotating tooth 91 that protrudes upward and is located inside the second through hole 103 and close to the hole wall of the second through hole 103.

[0053] In practice, the anti-rotation disc 9 is fixed to the top of the rotating connector 7 and rotates synchronously with it. The anti-rotation plate 10 is fixed inside the base box 1 in a fixed position. When it is necessary to loosen the rotating connector 7, an external force is applied to rotate the rotating connector 7, which drives the anti-rotation disc 9 to rotate together. The rotating teeth 91 on the anti-rotation disc 9 rotate within the second through hole 103 of the anti-rotation plate 10. When the rotating teeth 91 rotate to a specific angle, their side will contact and abut against the side of the locking teeth 104 on the anti-rotation plate, preventing the rotating connector 7 from continuing to rotate, thereby achieving positioning and locking at that angle. When it is necessary to disassemble and maintain the rotating connector, a force in the opposite direction must be applied to move the rotating teeth away from the locking teeth. Thus, this invention, through the cooperation of the locking teeth 104 and the rotating teeth 91, can achieve locking when the rotating connector 7 rotates to a specific position. Moreover, the locking and unlocking operations of this invention are relatively simple, and can be achieved simply by rotating the rotating connector 7, improving ease of use. The various components of the locking assembly 8, such as the anti-rotation disc 9 and the anti-rotation plate 10, are all installed inside the base box 1. They are positioned and installed using the annular step portion 110 and the flat step portion 111 on the base box 1. The structure is compact and does not take up too much space.

[0054] like Figure 4 and Figure 5As shown, in a preferred embodiment, the base box 1 has a third screw post 112 on the side near the anti-rotation plate 10, and a first screw hole 113 at one corner of the anti-rotation plate 10. A wire clamp 118 is connected between the third screw post 112 and the first screw hole 113, and a wire-passing limiting space is formed below the wire clamp 118 in the base box 1. In this way, the wire passes through the wire-passing limiting space between the base box 1 and the wire clamp 118, forming a reasonable limiting and guiding structure, making the wiring more organized, avoiding the electrical risks caused by arbitrary wire arrangement, and also facilitating subsequent maintenance and repair. Furthermore, the wire clamp 118 is connected to the base box 1 and the anti-rotation plate 10 through the third screw post 112 and the first screw hole 113, increasing the connection points between the anti-rotation plate 10 and the base box 1, and improving the structural stability of the guide rail head.

[0055] As a preferred implementation method, such as Figure 1 and Figure 2 As shown, the base box 1 has a spring clip 105 on both the front and rear sides for easy insertion into the external guide rail. This improves assembly efficiency.

[0056] As a preferred implementation method, such as Figure 4 As shown, the first guide rail head spring 4 is the neutral wire spring, and the second guide rail head spring 5 is the live wire spring. The bottom wall of the base box 1 has a ground wire marking 115 near the ground wire spring 3, a neutral wire marking 116 near the neutral wire spring 4, and a live wire marking 117 near the live wire spring 5. This allows for intuitive identification of the electrical functions of the three springs, enabling quick matching of the neutral, live, and ground terminals on the guide rail during installation, avoiding incorrect connections, and improving assembly efficiency.

[0057] In summary, this utility model discloses a guide rail head, including a base box, a cover, a ground wire spring, first and second guide rail head springs, a rotating latching component, and a rotating connector. The ground wire spring is vertically mounted on one side of the base box. The two guide rail head springs are horizontally arranged and separated by the vertically mounted rotating latching component. The rotating latching component has a rotating drive unit, which can synchronously drive the two springs to extend or retract into the base box by rotation. The rotating drive unit has specific first inclined surfaces, second inclined surfaces, and arc-shaped surfaces for contacting or abutting the springs to achieve smooth driving. A locking component is provided between the base box and the rotating connector for angular positioning and locking of the rotating connector. Thus, by optimizing the internal layout, a compact structure is achieved, balancing 220V high-voltage adaptation and miniaturization requirements.

[0058] As stated above, this case protects a guide rail head, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A guide rail head, characterized in that, include: Bottom box (1); The lid (2) is placed on top of the bottom box (1); The grounding spring (3) is vertically installed inside one side of the bottom box (1), with its top part protruding from the box cover (2). The first guide rail head spring (4) and the second guide rail head spring (5) are both arranged to extend laterally and can extend out of the bottom box (1) or retract into the bottom box (1); The rotating buckle (6) is vertically installed inside the other side of the bottom box (1) and is used to drive the first guide rail head spring (4) and the second guide rail head spring (5) to extend out of the bottom box (1) or retract into the bottom box (1) simultaneously by rotation. A rotating connector (7) is inserted through the bottom of the base box (1); The first guide rail head spring (4) and the second guide rail head spring (5) are respectively attached to the rotating buckle (6) and are separated by the rotating buckle (6) and distributed in the back and front of the bottom box (1).

2. The guide rail head according to claim 1, characterized in that, The rotating buckle (6) is provided from top to bottom as follows: a limiting end (61) that limits the insertion into the cover (2), a rotating drive part (62) that fits with the two guide rail head springs, a first step part (63) that supports the two guide rail head springs, a support part (64) that fits with the inner bottom surface of the bottom box (1), and an operating part (65) that passes through the bottom box (1) and has its bottom surface exposed outside the bottom box (1); the exposed surface of the operating part (65) forms a slot (66); the bottom box (1) is provided with strip-shaped through holes (11) for the corresponding guide rail head springs to extend out at symmetrical positions on its front and rear sides.

3. The guide rail head according to claim 2, characterized in that, The rotary drive unit (62) is clamped by two guide rail head springs in the transverse state, and when rotated to the longitudinal state, the two guide rail head springs are opened and the two guide rail head springs extend out of the bottom box (1); the front side of the rotary drive unit (62) in the transverse state is provided with two first inclined surfaces (67) arranged symmetrically in the longitudinal direction in a figure-eight pattern, and the rear side is provided with two second inclined surfaces (68) arranged symmetrically in the longitudinal direction in an inverted figure-eight pattern. The first inclined surfaces (67) and the second inclined surfaces (68) on the left and right sides are respectively connected by arc surfaces (69); the first inclined surfaces (67) and the second inclined surfaces (68) are used to fit with the corresponding guide rail head springs, and the arc surfaces (69) are used to abut against the corresponding guide rail head springs in the longitudinal state.

4. The guide rail head according to any one of claims 1-3, characterized in that, The first guide rail head spring (4) is provided with a retractable first spring part (41), a first oblique extension part (42) extending obliquely forward from the first spring part (41), a first lateral extension part (43) extending laterally from the first oblique extension part (42), and a first connecting part (44) extending forward from the first lateral extension part (43); the second guide rail head spring (5) is provided with a retractable second spring part (51), a second oblique extension part (52) extending obliquely forward from the second spring part (51), a second lateral extension part (53) extending laterally from the second oblique extension part (52), and a second connecting part (54) extending forward from the second lateral extension part (53); the first lateral extension part (43) is longer than the second lateral extension part (53), and the first connecting part (44) and the second connecting part (54) are arranged obliquely and alternately.

5. The guide rail head according to claim 4, characterized in that, The bottom box (1) is provided with a first strip guide groove (12) corresponding to the first lateral extension (43), a second strip guide groove (13) corresponding to the second lateral extension (53), a first mounting groove (14) corresponding to the first connecting part (44), and a second mounting groove (15) corresponding to the second connecting part (54); the first mounting groove (14) and the second mounting groove (15) are arranged diagonally and staggered, and are respectively provided with a first screw hole post (16) and a second screw hole post (17) with screw holes, and the two guide rail head springs are fixed to the corresponding screw hole posts by screws.

6. The guide rail head according to claim 1, characterized in that, The cover (2) is provided with a first through hole (21) through which the top of the ground wire spring (3) is limited. The bottom of the ground wire spring (3) is a mounting part (31) in the shape of a vertical plate. The bottom box (1) protrudes upward on the other side of its inner bottom wall to form a first snap-fit ​​member (18) with a slot for the mounting part (31) to be inserted therein. The cover (2) protrudes downward to form a second snap-fit ​​member (22) with a slot for the top surface of the mounting part (31) to be snapped downward.

7. The guide rail head according to claim 1, characterized in that, A locking assembly is provided between the bottom box (1) and the rotating connector (7), including: a stop plate (9) and a stop plate (10); the bottom of the bottom box (1) has a first opening (19) with a circumference that protrudes inward to form an annular step (110), on which the stop plate (9) is placed; the rotating connector (7) passes through the first opening (19), and the stop plate (9) is clamped between the annular step (110) and the top of the rotating connector (7); the bottom wall of the bottom box (1) has a planar step (111) formed around the first opening (19), where the stop plate (10) is installed; the stop plate (10) has a second through hole (103), with a locking tooth (104) protruding outward from the hole wall; the stop plate (9) has a rotating tooth (91) that protrudes upward and is located in the second through hole (103) and close to the hole wall, and the locking tooth (104) can lock the rotating tooth (91) when the rotating tooth (91) is rotated into place.

8. The guide rail head according to claim 7, characterized in that, The bottom box (1) has a third screw post (112) on the side near the anti-rotation plate (10), and a first screw hole (113) is provided in one corner of the anti-rotation plate (10). A wire clamp (118) is connected between the third screw post (112) and the first screw hole (113), and the bottom box (1) forms a wire threading limiting space below the wire clamp (118).

9. The guide rail head according to claim 1, characterized in that, The bottom box (1) has multiple latches (101) on one side, and the lid (2) has hooks (102) that engage with the multiple latches (101); the bottom box (1) also has one or more elastic buckles (105) on its side.

10. The guide rail head according to claim 1, characterized in that, The first guide head spring (4) is a neutral wire spring, the second guide head spring (5) is a live wire spring, and the bottom wall of the bottom box (1) is provided with a ground wire mark (115) near the ground wire spring (3), a neutral wire mark (116) near the neutral wire spring, and a live wire mark (117) near the live wire spring.

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