Pre-embedded quick connection box for emergency repair of high-voltage cable

Abstract

The utility model discloses a pre-embedded quick connection box for emergency repair of a high-voltage cable. The pre-embedded quick connection box comprises a box body and two fixing assemblies, two sides of the box body are provided with mounting holes for penetration of two cables, and the two cables are in sealed connection with the mounting holes; a protrusion is arranged on the side, close to the mounting hole, of the bottom face of the box, and two screws are fixed to the top face of the protrusion. The fixing assembly comprises an elastic clamping piece and a fixing clamping piece which are arranged up and down. The two ends of the elastic clamping piece and the two ends of the fixing clamping piece are fastened to the two screws respectively. The middle of the top surface of the elastic clamping sheet is V-shaped so as to support the bottom surface of the cable; the whole fixing clamping sheet is a semicircular clamp and is used for pressing the top surface of the cable. According to the utility model, the positioning of the cable of the pre-embedded quick connection box is modified, and the cable in the traditional box body is fixed on the bottom surface of the box body after passing through the mounting hole, and is severely inclined downwards to the inside of the box body. A cable at a mounting hole deflects seriously, and the cable and the mounting hole are not concentric, so that sealing is affected. The cable is stably supported and positioned through the protrusions and the elastic clamping pieces.

Description

Technical Field

[0001] The utility model relates to the field of cable connection, in particular to a pre-buried quick connection box for emergency repair of high-voltage cables. Background Art

[0002] With the rapid development of power grid construction, cables have been widely laid in urban areas. When a cable fault causes a power outage, on-site maintenance personnel cannot quickly find the fault point and need to temporarily transfer the load. Given that there are cables laid in the same trench, maintenance personnel need to quickly connect to the fault box transformer to temporarily restore power supply, which can solve such problems and improve the power supply reliability at the cable joints.

[0003] In the prior art, there is a Chinese utility model patent application numbered CN202120222831.9, titled "Cable Connection Box." This patent discloses a cable connection box comprising a housing, a connection assembly, and a temperature measurement assembly. The housing defines a receiving cavity; the connection assembly is disposed within the receiving cavity and includes a detachable connector and two cables connected to the ends of the detachable connector. The two cables pass through the side wall of the housing and connect to the detachable connector, enabling a quick connection between the two cables and a sealed connection between the cables and the housing.

[0004] However, for pre-buried junction boxes that need to be buried, the sealing ring is difficult to replace after long-term use. The mounting hole is generally far from the box, and the opening diameter is larger than the outer diameter of the cable. Furthermore, after the cable enters the box through the mounting hole, there is no cable positioning device, and the cable is directly fixed to the bottom of the box. This can easily lead to severe eccentricity of the cable at the mounting hole, unbalanced force, and poor sealing of the box.

[0005] Therefore, there is an urgent need to stably support the cables inside the cable connection box. Utility Model Content

[0006] The utility model aims to provide a pre-buried quick connection box for emergency repair of high-voltage cables, which stably supports the cables.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A pre-buried quick connection box for emergency repair of high-voltage cables, comprising a box body and two fixing components;

[0009] The two sides of the box are provided with mounting holes for the two cables to pass through, and the two cables are sealed and connected to the mounting holes;

[0010] A protrusion is provided on the bottom surface of the box body near the mounting hole, and two screws are fixed on the top surface of the protrusion;

[0011] The fixing assembly is used to fix each cable;

[0012] The fixing assembly includes an elastic card and a fixed card arranged up and down, and the ends of the elastic card and the fixed card are respectively fastened to two screws;

[0013] The middle area of ​​the elastic card is arched as a whole, and a V-shaped opening is provided in the middle of the arch to support the bottom surface of the cable;

[0014] The fixing card is a semicircular clamp used to press the top surface of the cable.

[0015] Furthermore, both ends of the elastic card are planes with waist-shaped holes;

[0016] The screw rod passes through the waist-shaped hole and is sleeved with a nut, and the two ends of the elastic card are pressed onto the protrusion through the nut.

[0017] Furthermore, a cable is provided in the middle cover of the fixed card, and the screw rod passes through both ends of the fixed card;

[0018] Two nuts are sleeved on the screw rod, and the two ends of the fixing card are placed between the two nuts.

[0019] Furthermore, a sealing ring is provided between the cable and the mounting hole.

[0020] Furthermore, two handles are provided on the box cover of the box body.

[0021] In the above technical solution, the pre-buried quick connection box for emergency repair of high-voltage cables of the present invention has the following beneficial effects:

[0022] This utility model improves the positioning of cables in pre-buried quick-connect boxes. In conventional boxes, cables tend to tilt significantly downward or upward after passing through the mounting holes. This can lead to significant cable deflection at the mounting holes, and the cable and mounting hole becoming misaligned, impacting sealing. Flexible clips support and position the cables, which are then secured using the clips. The V-shaped arch of the flexible clips supports the cables, preventing damage and ensuring they are secure without being too rigid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1This is a schematic diagram of the internal structure of the embedded quick connection box disclosed in the utility model;

[0025] Figure 2 This is a schematic diagram of the external structure of the pre-buried quick connection box disclosed in the utility model;

[0026] Figure 3 This is a schematic diagram of the planar structure of the fixing assembly disclosed in the present utility model.

[0027] Reference numerals:

[0028] Box body 1, protrusion 11, screw 12, elastic card 2, fixed card 3. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] It should be noted that the terms "above", "one end", "upper", etc. used in this article indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for illustrative purposes, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "one part", "two parts", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1-3 The illustrated embodiment shows a pre-buried quick connection box for emergency repair of high-voltage cables, comprising a box body and two fixing components.

[0032] The box body includes a detachable connector and two cables connected to the two ends of the detachable connector. Both sides of the box body 1 are provided with mounting holes for the two cables to pass through, and the two cables are sealed and connected to the mounting holes.

[0033] A protrusion 11 is provided on the bottom surface of the box body 1 near the mounting hole, and two screws 12 are fixed on the top surface of the protrusion 11; the protrusion 11 is a platform, and the protrusion 11 has the function of providing a mounting base for the screws 12.

[0034] The fixing assembly is used to fix each cable, and the fixing assembly includes an elastic card 2 and a fixing card 3 arranged up and down, and the ends of the elastic card 2 and the fixing card 3 are respectively fastened to two screws 12. The elastic card 2 and the fixing card 3 are sheet-shaped and have a certain degree of deformation ability.

[0035] The middle of the elastic card 2 is generally arched, with a V-shaped opening in the middle of the arch to support the bottom surface of the cable. The V-shaped opening is symmetrically arranged in the middle of the top surface of the arch. The V-shaped opening has a positioning effect on the cable. The two ends of the V-shaped opening are curved surfaces, which elastically support the cable and have the advantage of adjusting the size of the V-shaped opening under the influence of the cable's gravity or external human forces. The protrusion 11 and the elastic card 2 also serve to lift the cable. By designing the protrusion 11 and the elastic card 2 according to the size of the mounting hole, the cable can be kept as horizontal as possible through the mounting hole and the fixing component.

[0036] The fixing card 3 is a semicircular clamp for pressing and covering the top surface of the cable. The fixing card 3 has a fixing effect on the cable. The V-shaped opening is opposite to the semicircular surface of the fixing card 3.

[0037] The elastic clip 2 has an arched center and two flat surfaces with waist-shaped holes at each end. A screw 12 passes through the waist-shaped hole and is fitted with a nut. The nut presses the ends of the elastic clip 2 onto the protrusions 11, securing the elastic clip 2 in place. The waist-shaped hole allows the ends of the elastic clip to be adjusted relative to the screw, further adjusting the size of the V-shaped opening.

[0038] The cable is placed in the middle of the fixing card 3, and a screw 12 passes through both ends of the fixing card 3. Two nuts are sleeved onto the screw 12, and the two ends of the fixing card 3 are placed between the two nuts. In this way, the cable is secured by the screw 12 and the two nuts. This allows the distance between the fixing card 3 and the top surface of the protrusion 11 to be adjusted.

[0039] A sealing ring is provided between the cable and the mounting hole, and a sealed connection between the cable and the mounting hole is achieved through the sealing ring.

[0040] Two handles are provided on the cover of the box body 1 for easy carrying.

[0041] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pre-buried quick connection box for emergency repair of high-voltage cables, characterized in that: It comprises a box body (1) and two fixing components; The box (1) has mounting holes on both sides for two cables to pass through, and the two cables are sealed and connected to the mounting holes; A protrusion (11) is provided on the bottom surface of the box body (1) near the mounting hole, and two screws (12) are fixed on the top surface of the protrusion (11); The fixing assembly is used to fix each cable; The fixing assembly comprises an elastic card (2) and a fixed card (3) arranged vertically, and both ends of the elastic card (2) and the fixed card (3) are respectively fastened to two screw rods (12); The middle area of ​​the elastic card (2) is arched as a whole, and a V-shaped opening is provided in the middle of the arch to support the bottom surface of the cable; The fixing card (3) is a semicircular clamp as a whole and is used to press the top surface of the cable.

2. The pre-buried quick connection box for emergency repair of high-voltage cables according to claim 1, characterized in that: Both ends of the elastic card (2) are flat surfaces with waist-shaped holes; The screw rod (12) passes through a waist-shaped hole and is sleeved with a nut, and the two ends of the elastic card (2) are pressed onto the protrusion (11) through the nut.

3. The pre-buried quick connection box for emergency repair of high-voltage cables according to claim 1, characterized in that: The middle cover of the fixing card (3) is provided with a cable, and the screw rod (12) passes through both ends of the fixing card (3); Two nuts are sleeved on the screw rod (12), and the two ends of the fixing card (3) are placed between the two nuts.

4. The pre-buried quick connection box for emergency repair of high-voltage cables according to claim 1, characterized in that: A sealing ring is sandwiched between the cable and the mounting hole.

5. The pre-buried quick connection box for emergency repair of high-voltage cables according to claim 1, characterized in that: Two handles are provided on the box cover of the box body (1).

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