Building electrical installation pre-plugging engineering junction box

Abstract

The utility model relates to the technical field of junction boxes, and discloses a building electrical installation pre-plugging engineering junction box, which comprises a box body, a buffer pad is fixedly connected to the inner bottom side of the box body, a lower protection layer is fixedly connected to the top of the buffer pad, and a plurality of sealing lower half rings are fixedly connected to the inner part of the box body. The device comprises a box body, a plurality of sliding blocks are slidably connected into the box body, sealing upper half rings are fixedly connected to the bottoms of the sliding blocks, first springs are fixedly connected to the tops of the sliding blocks, a plurality of sliding grooves are formed in the box body, and connecting plates are fixedly connected to the sides, close to each other, of the sliding blocks; a plurality of sliding grooves are formed in the box body, and push-pull plates are slidably connected to the left side and the right side of the interior of the box body. According to the utility model, the tight fitting and efficient sealing of the cable passing part are ensured, the invasion of dust and moisture is effectively prevented, and the safety and reliability of electrical connection are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, in particular to a junction box for a pre-sealing project of building electrical installation. Background Art

[0002] The pre-sealed engineering junction box for building electrical installations is a key component used in building electrical installations, primarily for connecting low-voltage lines. It comprises a box body, a cover, an injection-molded one-piece plug-in connector, and an internal elastic fixing plate, all connected by snap-fit ​​or screw connections to form a complete junction box system. The junction box effectively balances the extrusion forces on all sides, reducing stress concentration and improving the installation strength and efficiency of the junction box. Furthermore, its rational internal structural design and clear wiring arrangement avoid cluttered wires and enhance ease of use. Pre-sealed engineering junction boxes are widely used in building electrical installations, particularly in situations where pre-embedding and sealing are required, such as at wire connections in walls and floors.

[0003] However, during the use of some existing building electrical installation pre-sealed engineering junction boxes, after placing cables inside the junction box, it is difficult to form an effective sealing surface at the joint between the cables and the junction box; at the same time, the matching accuracy between the cover and the base is insufficient, and there is a gap on the joint surface, which further weakens the sealing effect. Therefore, in view of the above shortcomings, a building electrical installation pre-sealed engineering junction box is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a pre-sealed engineering junction box for building electrical installation, aiming to improve the problem in the prior art that some pre-sealed engineering junction boxes for building electrical installation cannot ensure the sealing of the junction box during use.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The junction box of a building electrical installation pre-sealing project includes a box body, the bottom side of the box body is fixedly connected to a buffer pad, the top of the buffer pad is fixedly connected to a lower protective layer, a plurality of sealing lower half rings are fixedly connected to the inside of the box body, a plurality of sliding blocks are slidably connected to the inside of the box body, the bottoms of the plurality of sliding blocks are fixedly connected to a sealing upper half ring, the tops of the plurality of sliding blocks are fixedly connected to a spring, a plurality of sliding grooves are provided inside the box body, a plurality of sliding grooves are fixedly connected to the adjacent sides of the plurality of sliding blocks, a plurality of sliding grooves are provided inside the box body, the left and right sides of the interior of the box body are slidably connected to push-pull plates, a sealing groove is provided on the top side of the interior of the box body, the top of the box body is slidably connected to the upper protective layer, the top of the upper protective layer is fixedly connected to a top cover, the bottom of the top cover is fixedly connected to a sealing ring, and a clamping assembly for clamping is provided inside the top cover;

[0007] As a further description of the above technical solution:

[0008] The clamping assembly includes two sliding rods, the exteriors of the two sliding rods are slidably connected to the interior of the top cover, the exteriors of the two sliding rods are sleeved with spring 2, the bottoms of the plurality of sliding rods are fixedly connected to a connecting rod, the exterior top sides of the two sliding rods are fixedly connected to a fixing ring, the bottoms of the two connecting rods are fixedly connected to a clamping plate, the interior of the lower protective layer is provided with two sliding grooves, the interior of the lower protective layer is provided with two clamping grooves, and the interior of the lower protective layer is provided with two circular grooves;

[0009] As a further description of the above technical solution:

[0010] A plurality of cable grooves are provided on the adjacent sides of the upper protective layer and the lower protective layer, a plurality of cables are arranged inside the box body, and a pressing plate is fixedly connected to the top of the two sliding rods;

[0011] As a further description of the above technical solution:

[0012] One end of the spring 1 is fixedly connected to the inside of the box body, and the other end of the spring 1 is fixedly connected to the top of the sliding block;

[0013] As a further description of the above technical solution:

[0014] The outer portion of the sliding block is slidably connected to the inner portion of the sliding groove, and the outer portion of the connecting plate is slidably connected to the inner portion of the sliding groove;

[0015] As a further description of the above technical solution:

[0016] The outside of the cable contacts the inside of the upper sealing ring, and the outside of the cable contacts the inside of the cable groove;

[0017] As a further description of the above technical solution:

[0018] The outer portion of the sliding rod is slidably connected to the inner portion of the top cover, and the outer portion of the fixing ring is slidably connected to the inner portion of the top cover;

[0019] As a further description of the above technical solution:

[0020] The outside of the clamping plate is slidably connected to the inside of the sliding groove, and the outside of the clamping plate is slidably connected to the inside of the circular groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, a double-layer sealing ring is combined with a sliding block and a spring to ensure a tight fit and efficient sealing at the cable passage, effectively preventing the intrusion of dust and moisture, and ensuring the safety and reliability of the electrical connection.

[0023] 2. In this utility model, through the precise control of the locking assembly, the operator can easily open and close the top cover while avoiding potential damage to the cables. This design not only improves work efficiency, but also further strengthens the protection of the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of the pre-sealed junction box for building electrical installation proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the top cover structure of the pre-sealed junction box for building electrical installation proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the cable structure of the pre-sealed junction box for building electrical installation proposed by the present invention;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0029] Figure 6 This is a schematic diagram of the card structure of the pre-blocking junction box for building electrical installation proposed by the utility model;

[0030] Figure 7 This is a schematic diagram of the lower protective layer structure of the junction box for pre-sealing engineering of building electrical installation proposed by the utility model.

[0031] Legend:

[0032] 1. Box body; 2. Buffer pad; 3. Lower protective layer; 4. Sealing lower half ring; 5. Sliding block; 6. Sealing upper half ring; 7. Spring 1; 8. Sliding groove; 9. Connecting plate; 10. Sliding groove; 11. Push-pull plate; 12. Sealing groove; 13. Upper protective layer; 14. Top cover; 15. Sealing ring; 16. Wire trough; 17. Cable; 18. Sliding rod; 19. Spring 2; 20. Connecting rod; 21. Fixed ring; 22. Card plate; 23. Sliding groove; 24. Card groove; 25. Circular groove; 26. Press plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figures 1 to 3 , the utility model provides an embodiment: a pre-sealed engineering junction box for building electrical installation, including a box body 1, which constitutes the external frame of the junction box and provides physical support and protection for the internal components. A buffer pad 2 is fixedly connected to the bottom side of the interior of the box body 1, and the buffer pad 2 is used to absorb and disperse impact and vibration from the outside world to protect the internal structure from damage. A lower protective layer 3 is fixedly connected to the top of the buffer pad 2, and the lower protective layer 3 further strengthens the internal protection measures. A plurality of sealing lower half rings 4 are fixedly connected to the interior of the box body 1, and the sealing lower half ring 4 can fit tightly with the passing cables 17 to prevent dust and moisture from penetrating, and ensure the safety and reliability of the electrical connection. A plurality of sliding blocks 5 are slidably connected to the interior of the box body 1, and the bottoms of the plurality of sliding blocks 5 are fixedly connected to a sealing upper half ring 6, and the sliding blocks 5 adjust the position of the sealing upper half ring 6 by moving up and down;

[0035] The tops of the multiple sliding blocks 5 are all fixedly connected to a spring 7, one end of which is fixedly connected to the inside of the box body 1, and the other end of which is fixedly connected to the top of the sliding block 5. The spring 7 provides the necessary tension so that the upper sealing ring 6 can tightly surround the cable 17, ensuring good sealing performance. The inside of the box body 1 is provided with multiple sliding grooves 8, and the outer parts of the sliding blocks 5 are slidably connected to the inside of the sliding grooves 8. The adjacent sides of the multiple sliding blocks 5 are all fixedly connected to a connecting plate 9. The connecting plate 9 simplifies the operation process, and only one point of force is required to control the movement of all related structures. The inside of the box body 1 is provided with multiple sliding grooves 10, and the outer parts of the connecting plate 9 are slidably connected to the inside of the sliding grooves 10. The sliding grooves 10 provide guidance for the connecting plate 9 to ensure that it does not deviate from the predetermined trajectory when pushed. Sliding plates 11 are slidably connected to the left and right sides of the interior of the box body 1. A sealing groove 12 is provided on the top side of the interior of the box body 1. An upper protective layer 13 is slidably connected to the top of the box body 1. A top cover 14 is fixedly connected to the top of the upper protective layer 13. The top cover 14 is the openable part of the junction box, which facilitates access to the interior for maintenance or replacement of cables 17. A sealing ring 15 is fixedly connected to the bottom of the top cover 14. When the top cover 14 is closed, the sealing groove 12 and the sealing ring 15 on the top cover 14 are tightly combined to form an effective sealing barrier. A plurality of wire grooves 16 are provided on the adjacent sides of the upper protective layer 13 and the lower protective layer 3. A plurality of cables 17 are arranged inside the box body 1. The outside of the cables 17 contacts the inside of the sealing upper half ring 6, and the outside of the cables 17 contacts the inside of the wire grooves 16.

[0036] Reference Figures 3 to 5 The top cover 14 is internally provided with a snap-fit ​​assembly for snapping in. The snap-fit ​​assembly includes two sliding rods 18. The outer portion of the sliding rod 18 is slidably connected to the inner portion of the top cover 14. The outer portions of the two sliding rods 18 are both slidably connected to the inner portion of the top cover 14. The outer portions of the two sliding rods 18 are both sleeved with springs 19. Springs 19 provide a rebound force to ensure that the card plate 22 automatically returns to the standby state after each operation. The bottoms of the multiple sliding rods 18 are all fixedly connected to a connecting rod 20. The outer top sides of the two sliding rods 18 are both fixedly connected to a fixing ring 21. The fixing ring 21 acts as a limiter to prevent the sliding rods 18 from excessive movement and causing damage. The outer portion of the fixing ring 21 is slidably connected to the inner portion of the top cover 14.

[0037] The bottoms of the two connecting rods 20 are fixedly connected to a card plate 22, which achieves engagement or separation with the lower protective layer 3 through its precise movement. The lower protective layer 3 has two sliding grooves 23 formed inside, and the outer part of the card plate 22 is slidably connected to the inside of the sliding grooves 23. The lower protective layer 3 has two card slots 24 formed inside, and the card slots 24 are designed here to serve as the engaging space of the card plate 22. The lower protective layer 3 has two circular grooves 25 formed inside, and the outer part of the card plate 22 is slidably connected to the inside of the circular grooves 25. The circular grooves 25 are designed here to serve as the sliding space of the card plate 22. The tops of the two sliding rods 18 are fixedly connected to a pressing plate 26. By operating the pressing plate 26, the sliding rod 18 can move smoothly within the preset track, driving the card plate 22 to complete the locking or unlocking process.

[0038] Working principle: When using this wiring box, you can press the pressing plate 26 downwards, so that the card plate 22 can be separated from the inside of the card slot 24. At this time, you can rotate the pressing plate 26 to drive the sliding rod 18 and the card plate 22 to rotate. At this time, the card plate 22 will be aligned with the inside of the slide groove 23. Then, with the help of the elastic force of the spring 2 19, it can be separated from the inside of the lower protective layer 3, so that the top cover 14 can be quickly opened and closed. Then, the cable 17 can be placed in the inside of the wire groove 16. At this time, the push-pull plate 11 can be slid to make the connecting plate 9 slide inside the slide groove 10 and make the spring 1 7 Compression and rebound can make the sealing upper half ring 6 move upward, and the cable 17 can be placed between the sealing upper half ring 6 and the sealing lower half ring 4. Then, with the help of the elastic force of the spring 17, the sealing upper half ring 6 and the sealing lower half ring 4 can be tightly fitted to the connection between the cable 17 and the box body 1, thereby ensuring the sealing of the connection. Then, the pressing plate 26 can be pressed and rotated again to make the card plate 22 re-engage with the inside of the card groove 24. At this time, the sealing ring 15 will be inserted into the inside of the sealing groove 12, thereby improving the sealing between the top cover 14 and the box body 1.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pre-sealed junction box for building electrical installation, comprising a box body (1), characterized in that: The bottom side of the box body (1) is fixedly connected to a buffer pad (2), the top of the buffer pad (2) is fixedly connected to a lower protective layer (3), the inside of the box body (1) is fixedly connected to a plurality of sealing lower half rings (4), the inside of the box body (1) is slidably connected to a plurality of sliding blocks (5), the bottoms of the plurality of sliding blocks (5) are fixedly connected to a sealing upper half ring (6), the tops of the plurality of sliding blocks (5) are fixedly connected to a spring (7), the inside of the box body (1) is provided with a plurality of sliding grooves (8), the relative positions of the plurality of sliding blocks (5) are fixedly connected to the upper half ring (6), and the upper portions of the plurality of sliding blocks (5) are fixedly connected to the spring (7). A connecting plate (9) is fixedly connected to one side of the box body (1), a plurality of sliding grooves (10) are provided inside the box body (1), push-pull plates (11) are slidably connected to the left and right sides of the box body (1), a sealing groove (12) is provided on the top side of the box body (1), an upper protective layer (13) is slidably connected to the top of the box body (1), a top cover (14) is fixedly connected to the top of the upper protective layer (13), a sealing ring (15) is fixedly connected to the bottom of the top cover (14), and a snap-fit ​​assembly for snapping is provided inside the top cover (14).

2. The pre-sealing junction box for building electrical installation according to claim 1, characterized in that: The snap-fit ​​assembly comprises two sliding rods (18), the exteriors of the two sliding rods (18) are slidably connected to the interior of the top cover (14), the exteriors of the two sliding rods (18) are sleeved with spring 2 (19), the bottoms of the plurality of sliding rods (18) are fixedly connected to a connecting rod (20), the exterior top sides of the two sliding rods (18) are fixedly connected to a fixing ring (21), the bottoms of the two connecting rods (20) are fixedly connected to a clamping plate (22), the interior of the lower protective layer (3) is provided with two sliding grooves (23), the interior of the lower protective layer (3) is provided with two clamping grooves (24), and the interior of the lower protective layer (3) is provided with two circular grooves (25).

3. The pre-sealing junction box for building electrical installation according to claim 2, characterized in that: A plurality of wire slots (16) are provided on adjacent sides of the upper protective layer (13) and the lower protective layer (3), a plurality of cables (17) are provided inside the box body (1), and a pressing plate (26) is fixedly connected to the tops of the two sliding rods (18).

4. The pre-sealing junction box for building electrical installation according to claim 1, characterized in that: One end of the spring 1 (7) is fixedly connected to the inside of the box body (1), and the other end of the spring 1 (7) is fixedly connected to the top of the sliding block (5).

5. The pre-sealing junction box for building electrical installation according to claim 1, characterized in that: The outside of the sliding block (5) is slidably connected to the inside of the sliding groove (8), and the outside of the connecting plate (9) is slidably connected to the inside of the sliding groove (10).

6. The pre-sealing junction box for building electrical installation according to claim 3, characterized in that: The outside of the cable (17) contacts the inside of the sealing upper half ring (6), and the outside of the cable (17) contacts the inside of the wire groove (16).

7. The pre-sealing junction box for building electrical installation according to claim 2, characterized in that: The outside of the sliding rod (18) is slidably connected to the inside of the top cover (14), and the outside of the fixing ring (21) is slidably connected to the inside of the top cover (14).

8. The pre-sealing junction box for building electrical installation according to claim 2, characterized in that: The outside of the clamping plate (22) is slidably connected to the inside of the sliding groove (23), and the outside of the clamping plate (22) is slidably connected to the inside of the circular groove (25).

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