Telescopic conjoined junction box

Abstract

The utility model discloses a telescopic conjoined junction box, which solves the problems of poor adaptability and poor stability of a junction box in the prior art. The telescopic conjoined junction box comprises a main body box, an expansion box and a cover plate, the expansion box is sleeved in the main body box and can stretch out and draw back relative to the main body box, the cover plate is detachably arranged at the front end part of the expansion box, a limit adjusting mechanism is arranged between the expansion box and the main body box, and the limit adjusting mechanism is used for positioning and locking the expansion box. The top of the main box is provided with a first fastener, the left side or the right side of the main box is provided with a female buckle, and the right side or the left side of the main box is provided with a male buckle. Every two adjacent junction boxes can be rapidly connected through cooperation of the male buckles and the female buckles, and the stability of the junction boxes is improved. According to the utility model, the problems of poor adaptability, complex installation and poor stability of a traditional wire box are solved through modularized telescoping, mechanical occlusion fixation and conjoined splicing design.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an integrated junction box. Background Technology

[0002] Currently, in the electromechanical installation process of building construction, the installation of electrical junction boxes involves overlapping procedures and has a short installation time, thus requiring convenient junction box modules. For example, the anti-static and flame-retardant integrated junction box (publication number CN 206135339 U) can serve as a transition for connecting wires and various electrical circuits, and protect the circuit safety. However, in on-site construction, the distance between each rebar and the wall thickness varies, and different construction methods result in different distance requirements between the junction box and the wall. Therefore, the aforementioned non-retractable integrated junction box, due to the unequal spacing of many connected switches, presents problems such as difficult panel installation and significant safety hazards. Existing telescopic junction boxes, such as the one authorized by CN222464060U, require a spring to push a semi-circular protrusion for positioning. However, the positioning structure is unstable, and the internal positioning rod occupies internal space, reducing installation space, resulting in poor adaptability and inadequate waterproofing. Furthermore, it is difficult to fix adjacent junction boxes, leading to problems with secure installation. Therefore, a single, interconnectable junction box with stable positioning is needed. Utility Model Content

[0003] In view of the shortcomings in the above-mentioned background technology, this utility model proposes a retractable integrated junction box, which solves the problems of poor adaptability and inadequate stability of the junction box in the prior art.

[0004] The technical solution of this utility model is implemented as follows: A retractable integrated junction box includes a main body box, an expansion box, and a cover plate. The expansion box is fitted inside the main body box and can extend and retract relative to the main body box. The cover plate is detachably disposed at the front end of the expansion box. A limiting adjustment mechanism is provided between the expansion box and the main body box for positioning and locking the expansion box. A first fastener is provided on the top of the main body box. A female fastener is provided on the left or right side of the main body box, and a male fastener is provided on the right or left side of the main body box. Adjacent junction boxes can be quickly connected by the cooperation of the male and female fasteners, improving the stability of the junction boxes.

[0005] Further preferably, the main body box is a rectangular box with an open front end, and wire holes are provided on the top, bottom, left, right and rear walls of the main body box for quick wire connection.

[0006] Further preferably, the expansion box is a rectangular box with openings at both the front and rear ends, and a retaining ring is provided at the front end of the expansion box. The outer contour dimension of the retaining ring is larger than the contour dimension of the main box, which not only facilitates the pulling and extending of the expansion box, but also serves to position the expansion box in the direction of extension and retraction.

[0007] In a further preferred embodiment, the limiting adjustment mechanism includes a protrusion block disposed on the inner wall of the main body box and a grooved slide rail disposed on the outer wall of the expansion box. The protrusion block and the grooved slide rail cooperate to limit the movement of the expansion box. The limiting adjustment mechanism is disposed between the main body box and the expansion box, does not occupy internal space, and improves adaptability.

[0008] In a further preferred embodiment, the end of the protrusion facing the groove slide rail is inclined, and the groove slide rail is provided with a helical toothed rail, with the protrusion and the helical toothed rail forming a wedge-shaped engagement; ensuring the stability of the locking state between the expansion box and the main box.

[0009] Further preferably, a guide mechanism and a sealing and waterproofing mechanism are provided between the expansion box and the main body box. The guide mechanism facilitates the smooth pulling and extending of the expansion box, and the sealing and waterproofing mechanism improves the waterproofing of the junction box.

[0010] In a further preferred embodiment, the guiding mechanism includes a guide groove disposed on the inner wall of the bottom of the main body box and a guide rail block disposed on the outer wall of the bottom of the expansion box, the guide rail block being slidably engaged with the guide groove.

[0011] In a further preferred embodiment, a ball-operated component is embedded at the front end of the guide groove, and the ball-operated component corresponds to the positioning groove provided on the guide rail block; to prevent the expansion box from slipping out of the main body box.

[0012] More preferably, the sealing and waterproofing mechanism includes a rubber sealing strip embedded in the inner wall of the main body box.

[0013] In a further preferred embodiment, the cover plate is bolted to the ear seat disposed on the inner wall of the expansion box, and a sealing ring is provided between the cover plate and the expansion box.

[0014] The beneficial effects of this utility model are as follows: This utility model achieves lateral movement of the junction box through a first snap-fit ​​and longitudinal extension / retraction adjustment through a limit adjustment mechanism. The combination of lateral movement and longitudinal extension / retraction can adapt to wall thickness deviations or changes in pipeline layout, reducing on-site fabrication and processing requirements. The protruding block, grooved slide rail, and male-female snap-fit ​​splicing design of the limit adjustment mechanism simplify the screw fixing steps of traditional junction boxes. The "tool-free" operation meets the efficiency requirements of modern construction while improving the overall stability of the junction box. This utility model solves the problems of poor adaptability and complex installation of traditional junction boxes through modular extension, mechanical interlocking fixation, and integrated splicing design. This utility model achieves rapid adjustment and installation through snap-fit ​​and multi-dimensional adjustment, significantly improving the efficiency of electromechanical engineering and reducing costs, and is especially suitable for complex construction environments and modern building requirements. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first axonometric view of the present invention.

[0017] Figure 2 This is a second isometric view of the present invention.

[0018] Figure 3 This is a schematic diagram of the guide mechanism in Example 3. Detailed Implementation

[0019] 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.

[0020] like Figure 1 As shown in Embodiment 1, a retractable integrated junction box includes a main body box 8, an expansion box 9, and a cover plate (not shown in the figure). The expansion box 9 is fitted inside the main body box 8. It can be moved within the main body box by manual pulling, expanding its capacity and accommodating rebars at different distances from the wall thickness. The cover plate is detachably mounted on the front end of the expansion box 9 for sealing the junction box. A limiting adjustment mechanism is provided between the expansion box 9 and the main body box 8 for positioning and locking the expansion box. This limiting adjustment mechanism is located between the expansion box 9 and the main body box 8 without occupying internal space, ensuring installation space and improving the applicability of the device; suitable for various junction boxes embedded in walls. The top of the main body box 8 has a first fastener 1, which can be an open-top elastic fastener or a clamp, etc., for quick connection with the rebar to stabilize the main body box 8. A female fastener 5 is provided on the left or right side of the main body box 8, and a male fastener 7 is provided on the right or left side of the main body box 8. In this embodiment, taking the female buckle 5 on the left and the male buckle 7 on the right as an example, the two adjacent junction boxes are connected by the corresponding male and female buckles to achieve quick connection between the two adjacent junction boxes and ensure the stability of multiple junction boxes in the connected state.

[0021] In this embodiment, the main body box 8 is a rectangular box with an open front end, which can be pre-embedded in the wall. The main body box 8 has wire holes 4 on its top, bottom, left, right, and rear walls; that is, the main body box 8 has circular holes around its perimeter for wire conduit, facilitating quick connection of the conduit. Correspondingly, the expansion box 9 is a rectangular box with open front and rear ends, inserted into the main body box 8. The front end of the expansion box 9 has a retaining ring 91. The retaining ring 91 is a rectangular ring formed by four baffle strips located at the front opening of the expansion box 9. The four baffle strips extend beyond the main body box 8, meaning the outer contour of the retaining ring is larger than the contour of the main body box. This facilitates manual gripping of the expansion box for pulling and extending, and also serves to position the expansion box in the direction of extension, preventing the expansion box 9 from completely retracting into the main body box 8.

[0022] like Figure 2 As shown in Embodiment 2, a retractable integrated junction box includes a main box 8, an expansion box 9, and a cover plate (not shown in the figure). The expansion box 9 is fitted inside the main box 8. It can be moved within the main box by manual pulling, expanding its capacity and accommodating rebars at different distances from the wall thickness. The cover plate is detachably mounted on the front end of the expansion box 9 for sealing the junction box. A limiting adjustment mechanism is provided between the expansion box 9 and the main box 8 for positioning and locking the expansion box. This limiting adjustment mechanism is located between the expansion box 9 and the main box 8 without occupying internal space, ensuring installation space and improving the applicability of the device; suitable for various junction boxes embedded in walls. The top of the main box 8 has a first fastener 1, which can be an open-top elastic fastener or a clamp, for quick connection with the rebar, stabilizing the main box 8. A female fastener 5 is located on the left or right side of the main box 8, and a male fastener 7 is located on the right or left side of the main box 8. In this embodiment, taking the female buckle 5 on the left and the male buckle 7 on the right as an example, the two adjacent junction boxes are connected by the corresponding male and female buckles to achieve quick connection between the two adjacent junction boxes and ensure the stability of multiple junction boxes in the connected state.

[0023] In this embodiment, the main body box 8 is a rectangular box with an open front end, which can be pre-embedded in the wall. The main body box 8 has wire holes 4 on its top, bottom, left, right, and rear walls; that is, the main body box 8 has circular holes around its perimeter for wire conduit, facilitating quick connection of the conduit. Correspondingly, the expansion box 9 is a rectangular box with open front and rear ends, inserted into the main body box 8. The front end of the expansion box 9 has a retaining ring 91. The retaining ring 91 is a rectangular ring formed by four baffle strips located at the front opening of the expansion box 9. The four baffle strips extend beyond the main body box 8, meaning the outer contour of the retaining ring is larger than the contour of the main body box. This facilitates manual gripping of the expansion box for pulling and extending, and also serves to position the expansion box in the direction of extension, preventing the expansion box 9 from completely retracting into the main body box 8.

[0024] In this embodiment, the limiting adjustment mechanism includes a protruding block 2 on the inner wall of the main body box 8 and a grooved slide rail 6 on the outer wall of the expansion box 9. The protruding block 2 and the grooved slide rail 6 cooperate to limit the expansion box 9. Specifically, the end of the protruding block 2 facing the grooved slide rail 6 is inclined, and the grooved slide rail 6 is provided with a helical toothed rail. The protruding block 2 and the helical toothed rail form a wedge-shaped engagement. During manual pulling, the protruding block 2 moves relative to the helical toothed rail, and at the same time, the protruding block 2 and the helical toothed rail form a reverse locking. When the expansion box 9 is in a suitable extension position, the protruding block 2 and the helical toothed rail mechanically engage with each other, locking the expansion box 9 to a certain extent, preventing the expansion box 9 from slipping out, and improving the overall stability of the junction box. In this embodiment, preferably, the protruding blocks 2 are symmetrically arranged on the inner walls of the left and right sides of the main body box 8, and the grooved slide rails 6 are symmetrically arranged on the outer walls of the left and right sides of the expansion box 9, forming two limiting mechanisms to improve the stability of the junction box's limiting.

[0025] like Figure 3 As shown in Embodiment 3, a retractable integrated junction box is provided. This embodiment further optimizes the technology of Embodiment 1 or 2. In this embodiment, a guide mechanism and a sealing and waterproofing mechanism are also provided between the expansion box 9 and the main body box 8. The guide mechanism facilitates the smooth pulling and extending of the expansion box, and the sealing and waterproofing mechanism improves the waterproofing of the junction box.

[0026] Specifically, the guiding mechanism includes a guide groove 10 disposed on the inner wall of the bottom of the main body box 8 and a guide rail block 11 disposed on the outer wall of the bottom of the expansion box 9. The guide rail block 11 is slidably engaged with the guide groove 10. The guide groove 10 is arranged along the extension direction. During the extension and retraction of the expansion box 9, the guide rail block 11 slides relative to the guide groove 10, allowing the expansion box 9 to extend and retract in the specified direction. In addition, to further improve the safety of the extension and retraction limit of the expansion box 9, a ball catcher 12 is embedded in the front end of the guide groove 10. The ball catcher 12 corresponds to the positioning groove disposed on the guide rail block 11. When the expansion box 9 extends outward to its limit position, the ball catcher 12 pops out into the positioning groove, which plays a certain locking role on the guide rail block 11, preventing the expansion box from slipping out of the main body box and improving the safety of the junction box.

[0027] The sealing and waterproofing mechanism described in this embodiment includes a rubber sealing strip embedded in the inner wall of the main body box 8. The rubber sealing strip can be embedded around the front opening inside the main body box 8 to provide waterproofing and extend the service life of the junction box. In this embodiment, the cover plate is bolted to the lug 3 provided on the inner wall of the expansion box 9, and a sealing ring is provided between the cover plate and the expansion box 9 to further improve the sealing performance of the entire junction box.

[0028] This utility model achieves lateral movement of the junction box through a first snap-fit ​​mechanism and longitudinal extension / retraction adjustment through a limit adjustment mechanism. The combination of lateral movement and longitudinal extension / retraction can adapt to wall thickness deviations or changes in pipeline layout, reducing on-site fabrication and processing requirements. The protruding block 2, grooved slide rail 6, and male-female snap-fit ​​splicing design of the limit adjustment mechanism simplify the screw fixing steps of traditional junction boxes, and the "tool-free" operation meets the efficiency requirements of modern construction; it solves the problems of poor adaptability and complex installation of traditional junction boxes.

[0029] In the description of this utility model, it should be understood that the terms "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable, integrated junction box, comprising a main body box (8), an expansion box (9), and a cover plate, characterized in that: The extension box (9) is fitted inside the main body box (8). The cover plate is detachably set at the front end of the extension box (9). A limiting adjustment mechanism is provided between the extension box (9) and the main body box (8). The top of the main body box (8) is provided with a first buckle (1). The left or right side of the main body box (8) is provided with a female buckle (5). The right or left side of the main body box (8) is provided with a male buckle (7).

2. The retractable integrated junction box according to claim 1, characterized in that: The main body box (8) is a rectangular box with an open front end. The main body box (8) has wire holes (4) on its top, bottom, left, right and rear walls.

3. The retractable integrated junction box according to claim 1, characterized in that: The expansion box (9) is a rectangular box with openings at both the front and rear ends, and a retaining ring (91) is provided at the front end of the expansion box (9).

4. The retractable integrated junction box according to any one of claims 1 to 3, characterized in that: The limiting adjustment mechanism includes a protrusion (2) on the inner wall of the main body box (8) and a groove slide rail (6) on the outer wall of the expansion box (9). The protrusion (2) and the groove slide rail (6) cooperate to limit the expansion box (9).

5. The retractable integrated junction box according to claim 4, characterized in that: The end of the protrusion (2) facing the groove slide rail (6) is inclined, and the groove slide rail (6) is provided with a helical toothed rail. The protrusion (2) and the helical toothed rail form a wedge-shaped fit.

6. The retractable integrated junction box according to any one of claims 1 to 3 and 5, characterized in that: A guide mechanism and a sealing and waterproofing mechanism are also provided between the expansion box (9) and the main body box (8).

7. The retractable integrated junction box according to claim 6, characterized in that: The guiding mechanism includes a guide groove (10) provided on the inner wall of the bottom of the main body box (8) and a guide block (11) provided on the outer wall of the bottom of the expansion box (9), with the guide block (11) slidingly engaging with the guide groove (10).

8. The retractable integrated junction box according to claim 7, characterized in that: The guide groove (10) is equipped with a ball-bearing component (12) at its front end, and the ball-bearing component (12) corresponds to the positioning groove on the guide block (11).

9. The retractable integrated junction box according to claim 7 or 8, characterized in that: The sealing and waterproofing mechanism includes a rubber sealing strip embedded in the inner wall of the main body box (8).

10. The retractable integrated junction box according to claim 1, characterized in that: The cover plate is bolted to the ear seat (3) provided on the inner wall of the expansion box (9), and a sealing ring is provided between the cover plate and the expansion box (9).

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