Power distribution engineering erection overline box

Abstract

The utility model relates to the technical field of power distribution engineering equipment, and disclose a kind of overline box for power distribution engineering erection, including box, box cover, cable positioning assembly and sealing assembly, box is the rectangular cavity structure of top opening, and the cable entry of the rubber protection ring is opened in two side walls;Cable positioning assembly is symmetrically arranged in the inner wall of box, and is composed of positioning holder, adjusting screw, arc clamping plate and nitrile rubber non-slip pad, and the clamping force can be adjusted by knob, and different diameter cables are adapted and stable fixation is realized;Sealing assembly is arranged in the connecting surface of box and box cover, including sealing groove, EPDM sealing rubber strip and compression bolt, and the rubber strip is deformed to fill gap by bolt compression, and double sealing is formed by cooperating with rubber protection ring.The utility model is simple in structure, can effectively block water vapor and dust intrusion, avoid joint loosening caused by cable shaking, ensure the safe and stable operation of power distribution line switching place, and is suitable for various power distribution engineering line erection scene.

Description

Technical Field

[0001] This utility model relates to the field of power distribution engineering equipment technology, specifically a junction box for power distribution engineering installation. Background Technology

[0002] Junction boxes are key auxiliary equipment in power distribution line installation, mainly used for cable switching, branching, protection, and maintenance. They are widely used in building electrical systems, municipal power distribution, and industrial plants. In actual power distribution construction, cables often need to change their route, add branches, or pass through walls, floors, and other structures during installation. Junction boxes effectively prevent cables from being directly exposed to the outside environment and are subject to corrosion, while also providing operational space for later line maintenance and fault diagnosis.

[0003] Currently, the junction boxes used in existing power distribution projects have the following problems:

[0004] First, the sealing and protection performance is insufficient. The sealing structure at the connection between the box body and the cover of traditional junction boxes is simple. In humid environments, moisture can easily seep into the box, causing the cable insulation layer to become damp and damaged. Second, the cable fixing stability is poor. The junction box lacks an effective cable positioning structure inside, and the cable is prone to shaking inside the box, causing the joints to loosen and affecting the circuit conduction stability. Therefore, it is necessary to improve the junction box for power distribution engineering to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a junction box for power distribution engineering installation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a junction box for power distribution engineering installation, comprising a box body, a box cover, a cable positioning component, and a sealing component. The box body is a rectangular cavity structure with an open top, and the box cover is adapted to fasten to the opening at the top of the box body. The cable positioning components are symmetrically arranged on the inner walls of both sides of the box body for clamping and fixing cables passing through the box body. The sealing component is disposed between the connection surfaces of the box body and the box cover for improving the sealing performance of the box body and the box cover.

[0007] Furthermore, the cable positioning assembly includes a positioning bracket, an adjusting screw, a clamping plate, and an anti-slip pad. The positioning bracket is an "L"-shaped plate structure, vertically fixed to the inner wall of the box and located directly below the cable entry point. A threaded hole is provided at the top of the positioning bracket, through which the adjusting screw passes and is threadedly connected to the positioning bracket. The top of the adjusting screw extends above the positioning bracket and is fixedly connected to a knob, while the bottom extends below the positioning bracket and is rotatably connected to the top of the clamping plate via a bearing. The clamping plate is an arc-shaped plate structure, its curvature adapted to the outer wall of the cable. An anti-slip pad is attached to the bottom of the clamping plate, made of nitrile rubber with anti-slip textures on its surface. Rotating the knob moves the adjusting screw up and down, thereby pushing the clamping plate closer to or away from the positioning bracket, achieving stable clamping of cables of different diameters.

[0008] Furthermore, the sealing assembly includes a sealing groove, a sealing strip, and a clamping bolt. The sealing groove is located at the edge of the opening at the top of the box body. The sealing strip is fitted into the sealing groove and is made of EPDM rubber, which has good aging resistance and high and low temperature resistance. At least four sets of bolt holes are evenly distributed on the top edge of the box body, and a matching through hole is provided at the corresponding position on the box cover. The clamping bolt passes through the through hole and is threadedly connected to the bolt hole. By tightening the clamping bolt, the box cover can tightly squeeze the sealing strip, so that the sealing strip completely fills the gap between the box body and the box cover, effectively preventing moisture and dust from entering the interior of the box body.

[0009] Furthermore, at least two sets of cable entry points are symmetrically opened on both sides of the box. A rubber protective ring is pasted on the inner wall of the cable entry point. The inner diameter of the rubber protective ring is adapted to the outer diameter of common power distribution cables, which can prevent the cables from being scratched when they are inserted, and at the same time initially block external dust from entering the box.

[0010] Compared with the prior art, this utility model provides a junction box for power distribution engineering installation, which has the following beneficial effects:

[0011] 1. By setting up sealing components (sealing groove, sealing strip and clamping bolt), and in conjunction with the rubber protective ring at the cable entry point, a double seal can be achieved between the junction of the box body and the box cover and the cable entry point, effectively preventing moisture and dust from entering the box and solving the problem of insufficient sealing and protection performance of traditional cable boxes.

[0012] 2. By setting up cable positioning components (positioning bracket, adjusting screw, clamping plate and anti-slip pad), the clamping force can be flexibly adjusted according to the cable diameter to achieve stable clamping of the cable, avoiding the cable from shaking in the box or the joint from loosening due to external pulling, thus solving the problem of poor cable fixing stability in traditional cable boxes. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in 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.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the box structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the sealing component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the positioning component structure of this utility model.

[0018] In the diagram: 1. Box body; 11. Cable entry point; 12. Rubber protective ring; 2. Box cover; 3. Cable positioning assembly; 31. Positioning bracket; 32. Adjusting screw; 33. Clamping plate; 34. Anti-slip pad; 35. Knob; 4. Sealing assembly; 41. Sealing groove; 42. Sealing strip; 43. Tightening bolt. 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] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Example:

[0022] Please see Figure 1-4 This utility model provides a technical solution: a junction box for power distribution engineering installation, including a box body 1, a box cover 2, a cable positioning component 3 and a sealing component 4.

[0023] The box 1 is a rectangular cavity structure with an open top, made of high-strength ABS engineering plastic, with an anti-static coating on the surface, ensuring good insulation performance and structural strength while preventing static electricity buildup. Two sets of cable entry ports 11 are symmetrically located on both side walls of the box 1. Rubber protective rings 12 are attached to the inner wall of each cable entry port 11. The inner diameter of the rubber protective rings 12 is compatible with the outer diameter of common power distribution cables, preventing the cables from being scratched by the edges when inserting them and initially blocking external dust from entering the box 1.

[0024] The lid 2 is also made of high-strength ABS engineering plastic material, with an anti-static coating on the surface. It fits and snaps onto the top opening of the box body 1, forming a closed space with the box body 1 to protect the internal cable connectors.

[0025] The cable positioning assembly 3 is symmetrically arranged on both inner walls of the box 1, including a positioning bracket 31, an adjusting screw 32, a clamping plate 33, an anti-slip pad 34, and a knob 35. The positioning bracket 31 is an "L"-shaped plate structure, vertically fixed to the inner wall of the box 1 and located directly below the cable entry point 11; the top of the positioning bracket 31 has a threaded hole, through which the adjusting screw 32 passes and is threadedly connected to the positioning bracket 31; the top of the adjusting screw 32 extends above the positioning bracket 31 and is fixedly connected to the knob 35, and the bottom extends below the positioning bracket 31 and is rotatably connected to the top of the clamping plate 33 through a bearing; the clamping plate 33 is an arc-shaped plate structure, the curvature of which is adapted to the outer wall of the cable, and an anti-slip pad 34 is attached to the bottom of the clamping plate 33. The anti-slip pad 34 is made of nitrile rubber and has anti-slip texture on its surface.

[0026] The sealing assembly 4 is disposed between the connecting surfaces of the box body 1 and the box cover 2, and includes a sealing groove 41, a sealing strip 42, and a clamping bolt 43. The sealing groove 41 is opened at the edge of the top opening of the box body 1, and the sealing strip 42 is adapted to be embedded in the sealing groove 41. The sealing strip 42 is made of EPDM rubber and has good aging resistance and high and low temperature resistance. Four sets of bolt holes are evenly opened on the top edge of the box body 1, and the box cover 2 has corresponding through holes. The clamping bolt 43 passes through the through holes and is threadedly connected to the bolt holes.

[0027] Working principle: The junction box used in this power distribution project is first inserted into the box body 1 through the cable inlet 11. The knob 35 is turned to move the adjusting screw 32 downward, so that the clamping plate 33 and the positioning bracket 31 cooperate to clamp and fix the cable. The anti-slip pad 34 can effectively prevent the cable from sliding. After the cable connector is connected, the box cover 2 is fastened to the top of the box body 1 and the box cover 2 is fixed to the box body 1 by the clamping bolt 43. At this time, the sealing strip 42 is deformed under the pressure of the box cover 2, completely filling the gap between the box body 1 and the box cover 2, achieving a reliable seal.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A junction box for power distribution engineering installation, characterized in that, The device includes a box body (1), a box cover (2), a cable positioning assembly (3), and a sealing assembly (4). The box body (1) is a rectangular cavity structure with an open top. The box cover (2) is adapted to be fastened to the opening at the top of the box body (1). At least two sets of cable entry points (11) are symmetrically opened on both sides of the box body (1).

2. A junction box for power distribution engineering installation according to claim 1, characterized in that, A rubber protective ring (12) is pasted on the inner wall of the cable entry point (11), and the inner diameter of the rubber protective ring (12) is compatible with the outer diameter of common power distribution cables.

3. A junction box for power distribution engineering installation according to claim 1, characterized in that, The cable positioning components (3) are symmetrically arranged on the inner walls of both sides of the box (1). The cable positioning components (3) include positioning brackets (31). The positioning brackets (31) are "L"-shaped plate structures, which are vertically fixed to the inner wall of the box (1) and located directly below the cable entry point (11).

4. A junction box for power distribution engineering installation according to claim 3, characterized in that, The cable positioning assembly (3) also includes an adjusting screw (32) and a clamping plate (33). The top of the positioning card seat (31) is provided with a threaded hole. The adjusting screw (32) passes through the threaded hole and is threadedly connected to the positioning card seat (31). The top end of the adjusting screw (32) extends to the top of the positioning card seat (31) and is fixedly connected to a knob (35). The bottom end extends to the bottom of the positioning card seat (31) and is rotatably connected to the top of the clamping plate (33) through a bearing.

5. A junction box for power distribution engineering installation according to claim 4, characterized in that, The clamping plate (33) is an arc-shaped plate structure, and its curvature is adapted to the outer wall of the cable. An anti-slip pad (34) is attached to the bottom of the clamping plate (33). The anti-slip pad (34) is made of nitrile rubber and has anti-slip texture on its surface.

6. A junction box for power distribution engineering installation according to claim 1, characterized in that, The sealing component (4) is disposed between the connecting surfaces of the box body (1) and the box cover (2). The sealing component (4) includes a sealing groove (41) and a sealing strip (42). The sealing groove (41) is opened at the edge of the top opening of the box body (1). The sealing strip (42) is adapted to be embedded in the sealing groove (41). The sealing strip (42) is made of EPDM rubber.

7. A junction box for power distribution engineering installation according to claim 6, characterized in that, The sealing assembly (4) also includes a clamping bolt (43). The top edge of the box body (1) is evenly provided with at least four sets of bolt holes. The box cover (2) is provided with a matching through hole at the corresponding position. The clamping bolt (43) passes through the through hole and is threadedly connected to the bolt hole.

8. A junction box for power distribution engineering installation according to claim 1, characterized in that, The box body (1) and the box cover (2) are both made of high-strength ABS engineering plastic material and are coated with an anti-static coating.

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