Drawer type junction box of down lamp

Abstract

The drawer type junction box comprises a box body and an inner box body, a plurality of sliding rails are arranged on the inner walls of the two sides of the box body, a plurality of sliding grooves are formed in the outer walls of the two sides of the inner box body, protruding ribs are arranged on the sliding rails, and clamping grooves are formed in the sliding grooves. The convex ribs can be clamped in the clamping grooves; a trapezoid limiting plate is arranged among the sliding rails, and a limiting pin is arranged at one end of the trapezoid limiting plate. According to the drawer type junction box of the down lamp, the wiring operation space is increased, the wiring process and the adjusting operation are more convenient, and the drawer type junction box is simple, practical, convenient to open and close and convenient to construct.

Description

Technical Field

[0001] The present application relates to the technical field of junction boxes, and in particular to a drawer-type junction box for downlights. Background Art

[0002] While some products in the current downlight drawer-style junction box technology utilize a retractable design for enhanced ease of use, significant drawbacks and deficiencies remain. Specifically, some junction boxes require specialized personnel and tools for installation and maintenance, which undoubtedly increases installation costs and complicates and time-consuming subsequent maintenance. In particular, some junction boxes utilize a multi-layered snap-fit connection between the flip cover and the lower cover. This structure requires considerable force for removal and wiring, making operation extremely inconvenient.

[0003] Traditional junction boxes typically require opening the top cover to insert wires into the box for wiring, but the internal wiring space is often too narrow, making it difficult to operate. This limited space also creates operational difficulties when adjustments or repairs are required. Furthermore, the locking and limiting mechanisms of existing technologies are often overly complex in design, which not only increases the time and cost of installation and removal but also increases the risk of misoperation. The complex limit structure design lacks intuitiveness, making it easy for non-professionals to encounter obstacles during maintenance. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a drawer-type junction box for downlights, which expands the wiring and operation space, simplifies the limiting components, facilitates opening and closing, and is convenient for construction.

[0005] In order to achieve the above purpose, the present invention is solved through the following technical solutions.

[0006] A downlight drawer-type junction box comprises a box body and an inner box body. The inner walls on both sides of the box body are provided with a plurality of slide rails composed of convex ribs. The outer walls on both sides of the inner box body are provided with a plurality of slide grooves, each of which is provided with a clamping groove; the convex ribs can be clamped in the clamping groove; a trapezoidal limiting plate is provided in the middle of the plurality of slide rails, and a limiting pin is provided at one end of the trapezoidal limiting plate.

[0007] Furthermore, the width of the rib is equal to the width of the slot, and the length of the rib is less than the length of the slot.

[0008] Furthermore, the ribs and the grooves are linearly distributed along the entire length of the slide rail and the slide groove respectively.

[0009] Furthermore, the trapezoidal limiting plates are arranged in the rectangular holes on both side walls of the box body, and the plane where the trapezoidal limiting plates are located is parallel to the plane where the rectangular holes are located.

[0010] Furthermore, the rectangular hole is arranged in the middle of the plurality of slide rails and is parallel to the plurality of slide rails. The length of the rectangular hole is greater than the height of the trapezoidal limiting plate and less than the length of the plurality of slide rails.

[0011] Furthermore, a central chute is provided in the middle of the plurality of chute. A clamping groove is provided in the central chute. The length of the central chute is shorter than the length of the plurality of chute.

[0012] Furthermore, the width of the clamping slot in the central sliding slot is equal to the width of the limiting pin.

[0013] Furthermore, the limiting pin is shaped like a cylinder and is arranged on the short side of the trapezoidal limiting plate, and its length is equal to the length of the short side of the trapezoidal limiting plate.

[0014] Furthermore, a box cover is provided on the upper surface of the box body, one end of the box cover is connected to the box body through a rotating shaft, and the other end of the box cover is provided with a symmetrical slot.

[0015] The beneficial effects of the utility model are as follows: the utility model utilizes the cooperation between the convex ribs of the slide rail and the slots of the slide rail to realize the portable operation of the drawer type, and the design of the limit block simplifies the limit mechanism. The utility model increases the wiring operation space, making the wiring process and adjustment operations more convenient, simple and practical, easy to open and close, and convenient for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of a downlight drawer-type junction box.

[0017] Figure 2 This is a bottom view and a cross-sectional view along the AA direction of a downlight drawer-type junction box.

[0018] Figure 3 The present invention is a structural diagram of the slide rail, slide groove and limit block of a drawer-type junction box for a downlight.

[0019] Figure 4 This is a diagram of the internal structure of a downlight drawer-type junction box.

[0020] Explanation of the accompanying drawings: 1: box body; 1.1: box body cover; 1.1.1: rotating shaft; 1.1.2: box body cover card slot; 1.1.3: card convex; 1.2: long wiring hole a; 1.2.1: long wiring hole b; 1.3: heat dissipation hole; 1.4: slide rail; 1.4.1: convex rib; 1.5: trapezoidal limiting plate; 1.5.1: limiting pin; 1.6: rectangular hole; 1.7: reinforcement bracket; 1.8: mounting hole a; 1.9: mounting hole b; 2: inner box body; 2.1: wiring hole; 2.2: dial code; 2.3: dial code slot; 2.4: dial code cover; 2.5: dial code cover card slot; 2.6: slide slot; 2.6.1: card slot; 2.7: center slide slot. DETAILED DESCRIPTION

[0021] The present invention is described in further detail below with reference to the accompanying drawings.

[0022] A downlight drawer-type junction box comprises a box body 1 and an inner box body 2, Figure 1 The inner box body 2 is normally housed within the box body 1. Both the box body 1 and the inner box body 2 are rectangular parallelepipeds. An opening is provided on one side of the box body 1, allowing the inner box body 2 to be removed when needed for wiring and maintenance. The opening is designed for ease of operation, allowing the operator to easily observe and operate the internal components. A box cover 1.1 is provided on the top surface of the box body 1. This cover 1.1 is connected to the box body 1 via a hinge 1.1.1, ensuring the tightness and dustproof properties of the box body 1. A symmetrical U-shaped plate with a circular hole is provided at one end of the cover 1. A cover slot 1.1.2 is provided on one side. The inner box body 2 is housed within the opening of the box body 1 and can slide within the box body 1. The distance between the outer walls of the inner box body 2 is equal to the distance between the inner walls of the box body 1. The height of the inner box body 2 is slightly smaller than that of the box body 1, ensuring that the inner box body 2 can be completely housed within the box body 1 and can slide freely within the box body 1. The length of the inner box body 2 is equal to the length of the box body cover 1.1, ensuring that when the inner box body 2 is completely received in the box body 1, the box body cover 1.1 can completely cover the inner box body 2, thereby maintaining the neat appearance and integrity of the box body 1.

[0023] Box 1, refer to Figure 1 、 Figure 2 and Figure 4One side of the box body 1 has an opening extending through it, and the other surface, parallel to the opening, has two long wiring holes a1.2. These long wiring holes are rectangular holes, symmetrically arranged along the center line of the box body 1, with the long sides of the long wiring holes a1.2 parallel to the horizontal plane. With the center point of the long wiring hole a1.2 as the center of the circle, a heat dissipation hole 1.3 is provided on this surface. The heat dissipation holes 1.3 are symmetrically arranged along the center line of the box body 1. The heat dissipation holes 1.3 are circular holes, and the hole coverage is formed along the circular contour to maximize heat dissipation efficiency. A small distance directly opposite the long side of the long wiring hole a1.2 is not covered. In order to maintain the structural stability of the heat dissipation hole 1.3, a small distance is left unperforated. Two rectangular wiring holes b1.2.1 are symmetrically positioned on either side of the housing 1. The two holes b1.2.1 lie parallel to each other, with their long sides perpendicular to the horizontal plane, to accommodate various wiring needs. Circular heat dissipation holes 1.3 are also distributed around the center of the circle, forming a circular outline that covers the area of the holes. A small distance directly opposite the long sides of the holes b1.2.1 is not covered. A U-shaped plate extends from the upper end of each side wall of the box body 1, away from the opening. A hollow cylinder is inserted through the center of the U-shaped plate, and a concentric ring is positioned at the top of the hollow cylinder. The U-shaped plate with a circular hole of the box cover 1.1 is inserted through the hollow cylinder. The concentric ring acts as a stopper for the box cover 1.1, ensuring the stable fixation and correct positioning of the box cover 1.1. On the upper end of the outer walls of the box body 1, near the opening, symmetrically positioned latches 1.1.3 are provided. These latches 1.1.3 are frustums, with their bottom surfaces located on the side walls of the box body 1. Rectangular protrusions are positioned on the side of the latches 1.1.3 near the opening. The two rectangular protrusions are symmetrically positioned on the side walls of the box body 1 along the centerline of the box body 1. To enhance overall structural stability, the reinforcing bracket 1.7 has a U-shaped cross-section. The distance between its two parallel faces equals the distance between the outer walls of the housing 1. These two parallel faces are provided with rectangular holes that mate with the rectangular protrusions. The two rectangular protrusions on the side walls of the housing 1 snap into the two rectangular holes in the reinforcing bracket 1.7, thereby securing the reinforcing bracket 1.7 to the two sides of the housing 1 and providing additional support and reinforcement. Two mounting holes a1.8 are symmetrically arranged along the housing's axis of symmetry. These holes a1.8 consist of a circular hole and a quasi-rectangular hole. One short side of the quasi-rectangular hole is open and connected to the circular hole, while the other short side is rounded, facilitating the insertion and securing of screws or other fasteners. Mounting hole b1.9 is located on the lower surface of the housing 1, near one end of the elongated wiring hole a1.2 and on the housing's axis of symmetry. This arrangement ensures symmetry and balance during installation, while also facilitating installation. The main body of the hole is a circular hole, through which screws or other fasteners pass to secure the housing 1.

[0024] Slide rail 1.4 and limit block, refer to Figure 2 and Figure 3 Two slide rails 1.4 are provided on both side walls of the box body 1 below the latching protrusions 1.1.3. Ribs 1.4.1 are provided on the slide rails 1.4, distributed linearly along the entire length of the slide rails 1.4. The ribs 1.4.1 are rectangular parallelepipeds, and their length is less than half the length of the box body 1. They are symmetrically arranged on the inner side walls of the box body 1 along the horizontal axis of symmetry of the side of the box body 1, located on the side close to the opening of the long wiring hole b1.2.1. This ensures the stability and centering of the inner box body 2 during sliding, provides a stable guide, and enables the inner box body 2 to slide smoothly. Rectangular holes 1.6 are provided on the two side walls of the box body 1 in the middle of the slide rails 1.4. The center lines of these rectangular holes 1.6 coincide with the horizontal axis of symmetry of the side of the box body, reflecting the symmetry and precision of the design. Rectangular hole 1.6 is located between the two slide rails 1.4 and is arranged parallel to the slide rails 1.4. One short side of rectangular hole 1.6 is flush with the side of the slide rail 1.4 near the opening. The length of rectangular hole 1.6 is less than the length of slide rail 1.4, and the width is greater than the width of slide rail 1.4. Trapezoidal limit plate 1.5 is arranged within rectangular hole 1.6. Trapezoidal limit plate 1.5 is a rectangular plate. The plane on which trapezoidal limit plate 1.5 is located is parallel to the plane on which rectangular hole 1.6 is located. The length of trapezoidal limit plate 1.5 is less than the length of rectangular hole 1.6, and the width of the long side of trapezoidal limit plate 1.5 is equal to the width of rectangular hole 1.6. This design ensures the accuracy of the limit while allowing the inner box body 2 to extend beyond the boundary of trapezoidal limit plate 1.5 when necessary, providing a certain degree of flexibility. The short side of trapezoidal limit plate 1.5 is located on the side near the opening, and the long side is arranged on the short side of rectangular hole 1.6. The short side of the trapezoidal limit plate 1.5 is provided with a limit pin 1.5.1. The limit pin 1.5.1 is cylindrical. The length of the limit pin 1.5.1 is equal to the length of the short side of the trapezoidal limit plate 1.5. The limit pin 1.5.1 is located on the inner side of the box body 1. The trapezoidal limit plate 1.5 can effectively limit the movement of the inner box body 2 to prevent it from offsetting during operation.

[0025] Inner box 2, refer to Figure 1 、 Figure 2 and Figure 4, the inner box body 2 is normally stored in the box body 1. A wiring hole 2.1 is provided at the upper end of the side of the inner box body 2 away from the opening of the box body 1. A rectangular groove is provided on the other side of the inner box body 2, that is, the upper end of the side close to the opening of the box body 1. Two dial slots 2.3 are symmetrically provided in the rectangular groove. These dial slots 2.3 are rectangular grooves specially used to place the dials 2.2. The dial slots 2.3 are symmetrically arranged along the symmetry axis of the inner box body 2 and are used to place the dials 2.2. The dial 2.2 is a rectangular parallelepiped and is vertically arranged in the dial slot 2.3, so that the operator can easily dial the dial 2.2, which is convenient for the operator to make necessary adjustments to the downlight. This layout and design of the dial 2.2 fully considers the user's operating convenience and intuitiveness, making the adjustment process smoother and more accurate. To protect the dial 2.2 and prevent accidental operation, a dial cover 2.4 is installed above the dial 2.2 at both ends. The dial cover 2.4 completely covers the dial 2.2, ensuring the safety and cleanliness of the dial 2.2. The dial cover retaining slots 2.5 are symmetrically located at both ends of the rectangular groove's upper surface. The dial cover retaining slots 2.5 are used to position the dial cover 2.4, ensuring that it is securely installed and allowing the user to easily remove the dial cover 2.4 when the user needs to operate the dial 2.2.

[0026] Chute 2.6, refer to Figure 1 、 Figure 2 and Figure 3 Two symmetrical chute grooves 2.6 are located on the outer walls of the inner box 2. Each chute has a latching slot 2.6.1 located within it, extending linearly along its entire length. These latching slots 2.6.1 are rectangular and slightly shorter than the length of the inner box 2, ensuring unrestricted sliding of the inner box 2 within the box 1. They are symmetrically positioned on the outer walls of the inner box 2 along the horizontal axis of symmetry, helping to maintain stability and balance during sliding. A central chute 2.7 is located between the chute grooves 2.6, parallel to the horizontal axis of symmetry of the inner box 2, enhancing the symmetry and precision of the overall structure. The central chute 2.7 is positioned between the two chute grooves 2.6, parallel to the two side chute grooves 2.6. It also has a latching slot 2.6.1 located within it. The central chute 2.7 is shorter than the length of the chute grooves 2.6, but wider than the width of the chute grooves 2.6. The two short sides of the central sliding groove 2.7 are located on the inner side of the short side of the sliding groove 2.6, and the central sliding groove 2.7 and the sliding groove 2.6 are symmetrical along the vertical symmetry axis of the inner box body 2.

[0027] The rib 1.4.1 of the box body 1 can slide in the slot 2.6.1 of the inner box body 2, refer to Figure 1 、 Figure 2 and Figure 3The rib 1.4.1 is in the shape of a rectangular parallelepiped, and the width of the rib 1.4.1 is slightly smaller than the width of the card slot 2.6.1, ensuring that the rib 1.4.1 can slide without damping in the card slot 2.6.1, thereby improving the operational convenience of the drawer-type junction box. The length of the rib 1.4.1 is less than the length of the card slot 2.6.1, which not only ensures that the inner box body 2 can make full use of the card slot 2.6.1 for sliding, but also provides the necessary space for the setting of the long strip wiring hole b and the heat dissipation hole 1.3 through the effective use of materials, saving materials. The width of the card slot 2.6.1 inside the center slide 2.7 is slightly larger than the width of the limit pin 1.5.1 of the trapezoidal limit plate 1.5, ensuring that the trapezoidal limit plate 1.5 can be firmly stuck in the center slide 2.7, providing precise positioning. The shortest distance between the short side of the center chute 2.7 and the side of the inner box body 2 is equal to the distance between the stop pin 1.5.1 and the opening of the box body 1. This prevents the inner box body 2 from colliding or rubbing against the opposing surfaces when it is fully contained within the box body 1, thanks to the trapezoidal stop plate 1.5. This protects the box body 1 and inner box body 2, reduces mechanical wear, and extends the product's service life. Furthermore, when the inner box body 2 is pulled out of the box body 1, the trapezoidal stop plate 1.5 secures it, preventing it from easily falling out of the box body 1. This design enhances the convenience of maintenance and adjustment work. Maintenance personnel can easily access the inner box body 2 to perform necessary operations without having to worry about it accidentally slipping out or shifting. This significantly improves maintenance efficiency and operational safety in practical applications.

[0028] The invention discloses the installation, use and maintenance process of a drawer-type junction box for a downlight.

[0029] Installation process: 1. Preparation: Make sure all installation tools are complete, including screwdrivers, electric drills and other tools that may be needed. 2. Positioning: Determine the installation position of the downlight drawer-type junction box according to the lighting design drawings or installation guide. 3. Fix the box body 1: Use an electric drill to drill holes at the predetermined positions, and then use screws or other fasteners to pass through the mounting holes a1.8 and b1.9 to fix the box body 1 to the appropriate support structure. 4. Connect the power supply: Lead the power cord into the interior of the box body 1, and ensure that all wire connections comply with electrical safety standards. 5. Install the inner box body 2: Push the inner box body 2 smoothly into the box body 1 along the rib 1.4.1 until the limit pin 1.5.1 of the trapezoidal limit plate 1.5 is fully aligned with one end of the center slide groove 2.7 and is stuck. 6. Test: Before closing the box body 1, perform a preliminary power-on test to ensure that all connections are correct and the downlight can work properly.

[0030] Usage process: 1. Open the box cover 1.1: Gently rotate and lift the box cover 1.1 to make the box cover slot 1.1.2 leave the locking protrusion 1.1.3, and open it through the rotating shaft 1.1.1. 2. Access the inner box body 2: If wiring or adjustment is required, smoothly pull out the inner box body 2 along the rib 1.4.1 until it can be operated comfortably. Due to the action of the trapezoidal limit plate 1.5, the inner box body 2 will not easily leave the inside of the box body 1, so you can operate it with confidence. 3. Operate the dial 2.2: Adjust the settings of the downlight as needed, such as brightness or color temperature, by dialing the dial 2.2 in the dial slot 2.3. 4. Close the inner box body 2: After completing the operation, push the inner box body 2 back into the box body 1, and ensure that the limit pin 1.5.1 of the trapezoidal limit plate 1.5 is correctly engaged with one end of the center slide groove 2.7. 5. Close the box cover 1.1: Put the box cover 1.1 back into place, making sure that the protrusion 1.1.3 is correctly aligned with the box cover slot 1.1.2 and locked.

[0031] Repair process: 1. Identify the problem: First determine the specific problem that needs to be repaired, such as wire connection, downlight failure or dial code 2.2 problem. 2. Open the box cover 1.1: Gently rotate and lift the box cover 1.1 to make the box cover slot 1.1.2 leave the card protrusion 1.1.3, and open the box cover 1.1 through the hinge 1.1.1. 3. Pull out the inner box body 2: Pull out the inner box body 2 along the rib 1.4.1 to access the internal components. 4. Perform repairs: Perform necessary repair work based on the specific circumstances of the problem. This may include reconnecting wires, replacing damaged parts or adjusting the dial code 2.2. 5. Test: After completing the repair, test to ensure that the problem has been resolved and the downlight can work properly. 6. Reclose: Push the inner box body 2 back into place, close the box cover 1.1, and ensure that all parts are properly secured.

[0032] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A downlight drawer-type junction box, comprising a box body and an inner box body, characterized by: The inner walls on both sides of the box body are provided with a plurality of slide rails composed of convex ribs, and the outer walls on both sides of the inner box body are provided with a plurality of slide grooves, and the slide grooves are provided with card slots; The convex rib can be slidably clamped in the clamping groove; A trapezoidal limiting plate is arranged in the middle of the plurality of slide rails, and a limiting pin is arranged at one end of the trapezoidal limiting plate.

2. The drawer-type junction box for downlights according to claim 1, characterized in that: The width of the convex rib is equal to the width of the card slot, and the length of the convex rib is less than the length of the card slot.

3. The drawer-type junction box for downlights according to claim 2, characterized in that: The ribs and the grooves are linearly distributed along the entire length of the slide rail and the slide groove respectively.

4. The drawer-type junction box for downlight according to claim 1, characterized in that: The trapezoidal limiting plates are arranged in the rectangular holes on both side walls of the box body, and the plane where the trapezoidal limiting plates are located is parallel to the plane where the rectangular holes are located.

5. A downlight drawer-type junction box according to claim 1 or 4, characterized in that: The rectangular hole is arranged in the middle of the plurality of slide rails and is parallel to the plurality of slide rails. The length of the rectangular hole is greater than the height of the trapezoidal limiting plate and less than the length of the plurality of slide rails.

6. The drawer-type junction box for downlight according to claim 1, characterized in that: A central chute is provided in the middle of the plurality of chute slots, a clamping slot is provided in the central chute, and a length of the central chute is less than a length of the plurality of chute slots.

7. The drawer-type junction box for downlight according to claim 6, characterized in that: The width of the card slot in the center slide is equal to the width of the limit pin.

8. A downlight drawer-type junction box according to claim 4 or 7, characterized in that: The limiting pin is cylindrical in shape and is arranged on the short side of the trapezoidal limiting plate. Its length is equal to the length of the short side of the trapezoidal limiting plate.

9. The drawer-type junction box for downlight according to claim 1, characterized in that: A box cover is provided on the upper surface of the box body. One end of the box cover is connected to the box body through a rotating shaft, and the other end is provided with a symmetrical card slot.

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