High-voltage cable branch box for urban power grid

Abstract

The utility model relates to the field of cable branch boxes, and discloses a high-voltage cable branch box for an urban power grid, which comprises a branch box and a plurality of heat dissipation holes arranged on the branch box. The synchronous sealing assemblies comprise a plurality of hinge type sealing assemblies and a plurality of synchronous transmission assemblies; the hinge type plugging assembly comprises a bearing frame, a rotating shaft I, a plurality of fixed sleeves and sealing plates; the plurality of sealing plates are arranged corresponding to the corresponding heat dissipation holes respectively; the multiple adjusting assemblies are connected with the corresponding first rotating shafts and used for driving the corresponding first rotating shafts to rotate by a set angle in the set direction; according to the utility model, the synchronous sealing assembly is arranged in the box body, and when the temperature in the box body is abnormal and exceeds a safety threshold value, the synchronous sealing assembly can be driven by the adjusting assembly to synchronously and stably seal all the heat dissipation holes, so that the box body is isolated from the outside, air can be effectively prevented from entering the box body, and toxic gas is prevented from diffusing to the outside.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cable branch box, more specifically, it relates to a high voltage cable branch box for city power grid. BACKGROUND

[0002] With the development of the cable process of distribution network, when the independent load with small capacity is distributed more concentratedly, the cable branch box can be used for the connection of cable multi-branch, and the main function of the cable branch box is to distribute or relay the cable.

[0003] The safety performance of the cable branch box used in the city needs to be further improved to prevent the combustion caused by the high temperature or short circuit in the box, and the toxic gas generated by the combustion will have a great impact on the city environment, pedestrians or residents. UTILITY MODEL CONTENT

[0004] The utility model discloses a high voltage cable branch box for city power grid.

[0005] The utility model provides a high voltage cable branch box for city power grid, which comprises:

[0006] The tap box is provided with a plurality of heat dissipation holes on the inner wall, and the heat dissipation holes are arranged in an array;

[0007] A plurality of synchronous sealing assemblies, the synchronous sealing assembly comprises a plurality of hinge type sealing assemblies and a plurality of synchronous transmission assemblies, and the plurality of synchronous transmission assemblies are connected between adjacent two hinge type sealing assemblies;

[0008] The hinge type sealing assembly comprises a bearing bracket fixedly connected to the inner wall of the tap box, a rotating shaft one movably connected to the bearing bracket, a plurality of fixed sleeves fixedly connected to the rotating shaft one and a sealing plate fixedly connected to the fixed sleeve, and the plurality of sealing plates are respectively arranged corresponding to the corresponding heat dissipation holes;

[0009] A plurality of adjusting assemblies, the plurality of adjusting assemblies are respectively connected with the corresponding rotating shaft one and used for driving the corresponding rotating shaft one to rotate by a set angle along a set direction.

[0010] As a further optimization scheme of the utility model, the sealing plate is connected with an elastic limiting piece, when the sealing plate contacts with the inner wall of the tap box, the elastic limiting piece passes through the corresponding heat dissipation hole and contacts with the outer wall of the tap box.

[0011] As a further optimization scheme of the utility model, the synchronous transmission assembly comprises a gear one, a gear two and a transmission chain one connected between the gear one and the gear two, and the gear one and the gear two are respectively connected to the corresponding rotating shaft one.

[0012] As a further optimization scheme of the utility model, the adjusting assembly includes the motor fixedly connected on the inner wall of the distribution box, the shaft coupling connected on the output shaft end of the motor, the rotating shaft two connected on the shaft coupling, the gear three fixedly connected on the rotating shaft two, the gear four connected on one rotating shaft one and the transmission chain two connected between the gear three and the gear four.

[0013] As a further optimization scheme of the utility model, it further includes a plurality of corner detection assemblies, the plurality of corner detection assemblies are correspondingly arranged with the corresponding adjusting assemblies, and the corner detection assembly is used for detecting the rotating direction and rotating angle of the corresponding gear three.

[0014] As a further optimization scheme of the utility model, the corner detection assembly includes the fixed support fixedly connected on the inside of the distribution box and the corner sensor fixedly connected on the fixed support, and the input end of the corner sensor is connected with the gear three.

[0015] As a further optimization scheme of the utility model, the distribution box includes the box body, the opening and closing door symmetrically hinged on the box body, the lock catch arranged on the opening and closing door, the limiting support connected on the bottom of the box body and the plurality of cable clamps connected on the limiting support.

[0016] As a further optimization scheme of the utility model, the top of the box body is connected with the mounting frame, and the mounting frame is detachably connected with the plurality of cable sleeves.

[0017] The utility model discloses the beneficial effect lies in: the utility model discloses the synchronous closing assembly is arranged in the box body, when the temperature in the box body is abnormal and exceeds the safety threshold value, can drive the synchronous closing assembly through the adjusting assembly and synchronously block all the heat dissipation holes stably, makes the box body and the outside isolation, can effectively isolate the air into the box body and prevent the toxic gas diffusion to the outside. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic view of the utility model;

[0019] Figure 2 It is the internal structure schematic view of the box body of the utility model;

[0020] Figure 3 It is the cooperation view of the synchronous closing assembly, the adjusting assembly and the corner detection assembly of the utility model;

[0021] Figure 4 It is the Figure 3 Enlarged view of A in the utility model;

[0022] Figure 5 It is the Figure 3an enlarged view of B in the figure;

[0023] Figure 6 the synchronous closing assembly of the utility model is Figure 3 an enlarged view of C in the figure;

[0024] Figure 7 the synchronous closing assembly of the utility model is

[0025] Figure 8 the synchronous closing assembly of the utility model is Figure 7 an enlarged view of D in the figure.

[0026] In the figure: 100, box body; 110, opening and closing door; 120, lock catch; 130, limiting support; 140, wire clamp; 150, heat dissipation hole; 2, mounting frame; 3, cable sleeve; 4, synchronous closing assembly; 400, bearing frame; 410, rotating shaft one; 420, fixed sleeve; 430, sealing plate; 440, gear one; 450, gear two; 460, transmission chain one; 470, elastic limiting piece; 5, adjusting assembly; 500, motor; 510, shaft coupling; 520, rotating shaft two; 530, gear three; 540, gear four; 550, transmission chain two; 6, angle detection assembly; 600, fixed support; 610, angle sensor. DETAILED DESCRIPTION

[0027] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that these implementations are discussed merely to provide a more thorough understanding of the subject matter described herein. Furthermore, the features described with respect to some examples can be combined in other examples.

[0028] As shown in Figures 1 to 8 a high-voltage cable branch box for urban power grids, comprising:

[0029] The tap box comprises a box body 100, a plurality of heat dissipation holes 150 arranged on the box body 100, two symmetrical opening and closing doors 110 hingedly arranged on the box body 100, a lock catch 120 arranged on the opening and closing door 110, a limiting support 130 connected to the bottom of the box body 100, and a plurality of wire clamps 140 connected to the limiting support 130; the plurality of heat dissipation holes 150 are arranged in an array;

[0030] The top of the box body 100 is connected with a mounting frame 2, and a plurality of cable sleeves 3 are detachably connected to the mounting frame 2;

[0031] A plurality of synchronous closing assemblies 4, the synchronous closing assembly 4 comprises a plurality of hinge type closing assemblies and a plurality of synchronous transmission assemblies, and the plurality of synchronous transmission assemblies are connected between adjacent two hinge type closing assemblies;

[0032] The hinge type plugging assembly comprises a bearing frame 400 fixedly connected to the inner wall of the distribution box, a rotating shaft I 410 movably connected to the bearing frame 400, a plurality of fixed sleeves 420 fixedly connected to the rotating shaft I 410, and a plurality of sealing plates 430 fixedly connected to the fixed sleeves 420, wherein the plurality of sealing plates 430 are respectively arranged corresponding to the corresponding heat dissipation holes 150.

[0033] A plurality of adjusting assemblies 5, wherein each adjusting assembly 5 is connected to the corresponding rotating shaft I 410 and used for driving the corresponding rotating shaft I 410 to rotate by a set angle in a set direction.

[0034] It should be noted that when the temperature sensor arranged in the box body 100 obtains that the temperature in the box body 100 exceeds the safety threshold, the corresponding rotating shaft I 410 is driven to rotate by the adjusting assembly 5, and since each two adjacent rotating shaft I 410 are connected by the synchronous transmission assembly, when one of the rotating shaft I 410 is driven to rotate by the adjusting assembly 5, the other rotating shaft I 410 can be driven to rotate in the same direction and by the same angle by the plurality of synchronous transmission assemblies, and the rotating shaft I 410 can drive the fixed sleeve 420 and the sealing plate 430 connected thereto to rotate in the same direction and by the same angle, until the sealing plate 430 contacts the inner wall of the box body 100, at this time, the sealing plate 430 can cover the corresponding heat dissipation hole 150, so that all the heat dissipation holes 150 are in a plugged state, which can effectively prevent the toxic gas generated by the burning of the electrical devices in the box body 100 from diffusing to the outside of the box body 100 through the heat dissipation hole 150, and can also effectively block the air from the outside into the box body 100, thereby effectively reducing the content of combustion-supporting medium and improving the safety performance of the entire branch box.

[0035] In an optional embodiment of the present application, as shown in Figure 7 and Figure 8 , the sealing plate 430 is connected with an elastic limiting piece 470, when the sealing plate 430 contacts the inner wall of the distribution box, the elastic limiting piece 470 passes through the corresponding heat dissipation hole 150 and contacts the outer wall of the distribution box.

[0036] It should be noted that, as described above, the burning can cause the adjusting assembly 5 to be damaged, so that the sealing plate 430 is no longer subjected to the limiting force, and the sealing plate 430 no longer tightly contacts the inner wall of the box body 100, so that the toxic gas diffuses to the outside, therefore, the elastic limiting piece 470 is arranged on the sealing plate 430, when the sealing plate 430 tightly contacts the inner wall of the box body 100, the bending limiting part of the elastic limiting piece 470 passes through the heat dissipation hole 150 and contacts the outer wall of the box body 100, thereby forming a limiting effect, which can effectively limit the movement of the sealing plate 430, so that the sealing plate 430 can always stably plug the heat dissipation hole 150.

[0037] In an optional embodiment of the utility model, the synchronous transmission assembly can adopt synchronous wheel and synchronous belt.

[0038] In an optional embodiment of the utility model, as shown in Figure 3 and Figure 5 The synchronous transmission assembly comprises gear one 440, gear two 450 and transmission chain one 460 connected between gear one 440 and gear two 450, and gear one 440 and gear two 450 are connected on the corresponding shaft one 410 respectively.

[0039] It should be noted that, as described above, when one of the shaft one 410 rotates, it can drive gear one 440 to rotate in the same direction and at the same angle, and the rotation of gear one 440 can drive gear two 450 to rotate in the same direction and at the same angle through transmission chain one 460, so that the other adjacent shaft one 410 rotates synchronously.

[0040] In an optional embodiment of the utility model, as shown in Figure 3 and Figure 6 The adjusting assembly 5 comprises motor 500 fixedly connected on the inner wall of the distribution box, shaft coupling 510 connected on the output shaft end of the motor 500, shaft two 520 connected on the shaft coupling 510, gear three 530 fixedly connected on the shaft two 520, gear four 540 connected on one of the shaft one 410 and transmission chain two 550 connected between gear three 530 and gear four 540.

[0041] It should be noted that, as described above, when the shaft one 410 is driven to rotate by the adjusting assembly 5, the shaft coupling 510, the shaft two 520 and the gear three 530 are driven to rotate by the motor 500, the gear three 530 is driven to rotate synchronously by the transmission chain two 550 when the gear three 530 rotates, and the shaft one 410 connected with the gear four 540 is driven to rotate synchronously when the gear four 540 rotates.

[0042] In an optional embodiment of the utility model, as shown in Figure 6 It further comprises a plurality of angle detection assemblies 6, and the plurality of angle detection assemblies 6 are correspondingly arranged with the corresponding adjusting assemblies 5, and the angle detection assembly 6 is used for detecting the rotation direction and rotation angle of the corresponding gear three 530.

[0043] The angle detection assembly 6 comprises fixed support 600 fixedly connected on the inside of the distribution box and angle sensor 610 fixedly connected on the fixed support 600, and the input end of the angle sensor 610 is connected with the gear three 530.

[0044] It should be noted that, as described above, when the rotating shaft one 410 is driven to rotate by the adjusting assembly 5, the rotating angle of the gear three 530 can be obtained by the rotating angle sensor 610. If the rotating angle data of the gear three 530 does not reach the set value, it indicates that one or more sealing plates 430 is blocked when covering the heat dissipation hole 150. At this time, it indicates that there may be foreign matter blocking the heat dissipation hole 150. Therefore, a regular self-checking program can be set to determine whether there is foreign matter at the heat dissipation hole 150. If there is, it needs to be cleaned in time to prevent the sealing plate 430 from being blocked when sealing the heat dissipation hole 150, which can further improve the stability of sealing the heat dissipation hole 150 and improve the use safety of the equipment.

[0045] The above describes the present embodiment, but the present embodiment is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive. Those skilled in the art can make many forms under the inspiration of the present embodiment, which all belong to the protection of the present embodiment.

Claims

1. A high-voltage cable branch box for an urban power network, characterized in that The utility model relates to a kind of box for distribution, including: The inner wall of the distribution box is provided with a plurality of heat dissipation holes (150), and the plurality of heat dissipation holes (150) are distributed in an array; A plurality of synchronous sealing assemblies (4) are included, which include a plurality of hinge type sealing assemblies and a plurality of synchronous transmission assemblies connected between adjacent two hinge type sealing assemblies; The hinge type sealing assembly includes a bearing bracket (400) fixedly connected to the inner wall of the distribution box, a rotating shaft I (410) movably connected to the bearing bracket (400), a plurality of fixed sleeves (420) fixedly connected to the rotating shaft I (410), and a sealing plate (430) fixedly connected to the fixed sleeve (420). The plurality of sealing plates (430) are respectively arranged corresponding to the corresponding heat dissipation holes (150). A plurality of adjusting assemblies (5) are respectively connected to the corresponding rotating shaft I (410) and used to drive the corresponding rotating shaft I (410) to rotate by a set angle in a set direction.

2. A high voltage cable branch box for use in an urban network according to claim 1, characterized in that The sealing plate (430) is connected with an elastic limiting piece (470), and when the sealing plate (430) contacts the inner wall of the distribution box, the elastic limiting piece (470) passes through the corresponding heat dissipation hole (150) and contacts the outer wall of the distribution box.

3. A high voltage cable branch box for use in an urban network according to claim 2, characterized in that The synchronous transmission assembly includes a gear I (440), a gear II (450), and a transmission chain I (460) connected between the gear I (440) and the gear II (450). The gear I (440) and the gear II (450) are respectively connected to the corresponding rotating shaft I (410).

4. A high voltage cable branch box for use in an urban network according to claim 3, characterized in that The adjusting assembly (5) includes a motor (500) fixedly connected to the inner wall of the distribution box, a shaft coupling (510) connected to the output shaft end of the motor (500), a rotating shaft II (520) connected to the shaft coupling (510), a gear III (530) fixedly connected to the rotating shaft II (520), a gear IV (540) connected to one of the rotating shaft I (410), and a transmission chain II (550) connected between the gear III (530) and the gear IV (540).

5. A high voltage cable branch box for use in an urban network according to claim 4, characterized in that Further comprising a plurality of angle detection assemblies (6) respectively arranged corresponding to the corresponding adjusting assembly (5), and the angle detection assembly (6) is used to detect the rotating direction and rotating angle of the corresponding gear III (530).

6. A high voltage cable branch box for use in an urban network according to claim 5, characterized in that The angle detection assembly (6) includes a fixed support (600) fixedly connected to the inside of the distribution box and an angle sensor (610) fixedly connected to the fixed support (600). The input end of the angle sensor (610) is connected to the gear III (530).

7. A high voltage cable branch box for use in an urban network according to claim 6, characterized in that The distribution box includes a box body (100), two symmetrical hinged opening and closing doors (110) on the box body (100), a lock catch (120) provided on the opening and closing door (110), a limiting support (130) connected to the bottom of the box body (100), and a plurality of wire clamps (140) connected to the limiting support (130).

8. A high voltage cable branch box for use in an urban network according to claim 7, characterized in that The top of the box (100) is connected with a mounting frame (2), and a plurality of cable sleeves (3) are detachably connected on the mounting frame (2).

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