Firmly-connected high-voltage cable distribution box

Abstract

The utility model belongs to the technical field of high-voltage cable distribution boxes, and particularly relates to a firmly-connected high-voltage cable distribution box, which comprises a cable well and a distribution box, the top of the cable well and the bottom of the distribution box are respectively provided with a fixed connecting device, and each fixed connecting device comprises a connecting mechanism and a sealing mechanism. A heat dissipation device is arranged in the branch box, and the heat dissipation device comprises an installation mechanism and a heat dissipation mechanism. According to the firmly-connected high-voltage cable distribution box, the cable well and the distribution box are firmly connected together through the connecting mechanism, stable connection is achieved, in rainstorm weather, possible seepage water is absorbed through the sealing mechanism, the sealing effect is further provided, rainwater is prevented from seeping into the cable well and the distribution box, and the service life of the cable well and the distribution box is prolonged. When the weather is hot and the temperature is too high in summer, the heat dissipation device is started to carry out air blowing heat dissipation on the high temperature in the branch box, and the situation that the internal temperature is too high, and aging of electrical components is accelerated is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage cable distribution boxes, in particular to a high-voltage cable distribution box with firm connections. Background Art

[0002] Cable junction boxes are generally used to branch, connect, and convert cable lines. The main functions of cable junction boxes are actually two-fold: one is to transfer cables, and the other is to branch cables. In other words, they connect underground cables to cable junction boxes installed above ground, thereby achieving cable branching, connection, and conversion. In the existing technology, the stability of cable junction boxes may gradually decrease during long-term use.

[0003] As disclosed in Chinese patent publication No. CN115425597A, a high-voltage cable junction box is provided. When in use, the internal positioning plate makes the support of the support rod more firm, and the horizontal plate 1 makes the positioning plate more stable. At the same time, the support rod can better ensure the stability of the limit plate, and the horizontal plate 2 firmly fixes the support rod. Then, during the use of the limit plate, the support plate supports and fixes the working box, and then through the connection of the connecting plate, the cooling fan can quickly dissipate the heat inside the cabinet, and then the internal heat is quickly discharged through the ventilation net of the fixed frame. While dissipating heat, the fixed block better ensures the stability of the fixed frame. Then, the cover door can be easily opened by bending the pull slot, and the interior of the high-voltage cable junction box can be carefully inspected. Then, the usage of the interior of the high-voltage cable junction box can be directly observed through the observation window.

[0004] However, the high-voltage cable junction box in the above application does not have a corresponding fixing mechanism at the connection between the underground cable well and the junction box, which may cause an unstable connection between the junction box and the cable well, causing rainwater and the like to flow into the interior of the cable well, thereby causing serious consequences. Therefore, there are certain limitations.

[0005] For this reason, we need to provide a kind of high-voltage cable distribution box with firm connection urgently. Utility Model Content

[0006] The purpose of the present utility model is to provide a high-voltage cable junction box with a secure connection, so as to solve the problem that the high-voltage cable junction box proposed in the above-mentioned background technology has no corresponding fixing mechanism at the connection between the underground cable well and the junction box, which may cause an unstable connection between the junction box and the cable well, resulting in rainwater and the like flowing into the interior of the cable well, thereby causing serious consequences.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a firmly connected high-voltage cable junction box, comprising a cable well and a junction box, the junction box being installed above the cable well, the top of the cable well and the bottom of the junction box being respectively provided with fixed connection devices, and a heat dissipation device being provided inside the junction box.

[0008] The fixed connection device includes a connecting mechanism and a sealing mechanism. The connecting mechanism is arranged at the bottom of the junction box, and the sealing mechanism is arranged inside the connecting mechanism.

[0009] The connecting mechanism includes a connecting base, a connecting block, a fixing bolt, and a nut. The connecting base is fixedly connected to the bottom of the junction box. The four connecting blocks are respectively fixedly connected to the front and rear ends of the left and right outer surfaces of the connecting base. The four fixing bolts are respectively rotatably connected to the center of the upper surface of the connecting block, and the four nuts are respectively threadedly connected to the bottom of the fixing bolts.

[0010] A further improvement is that a threaded hole is opened through the center of the upper surface of the connecting block, and the fixing bolt is threadedly connected to the inside of the threaded hole. The fixing bolt is matched with the nut to firmly connect the two sets of connecting mechanisms together, thereby realizing a stable connection between the cable well and the junction box.

[0011] A further improvement is that the sealing mechanism includes a water-absorbing and expanding waterstop strip, a water-absorbing sponge, and a rubber sealing ring. The water-absorbing and expanding waterstop strip is adhered to the inner side of the connecting base, the water-absorbing sponge is adhered to the inner side of the water-absorbing and expanding waterstop strip, and the rubber sealing ring is adhered to the inner side of the water-absorbing sponge. When encountering heavy rain, if there is slight water seepage at the connection between the cable well and the junction box, the water-absorbing and expanding waterstop strip absorbs water and expands, thereby improving the sealing effect and preventing rainwater from seeping into the interior of the cable well and the junction box. The water-absorbing sponge absorbs possible water seepage, and the rubber sealing ring further provides a sealing effect.

[0012] A further improvement is that the heat dissipation device includes a mounting mechanism and a heat dissipation mechanism, the mounting mechanism is mounted below the left inner surface of the junction box, and the heat dissipation mechanism is arranged inside the mounting mechanism.

[0013] The mounting mechanism includes a mounting seat, a connecting rod, a fan motor, and a rotating shaft. The mounting seat is fixedly connected to the lower side of the left inner surface of the junction box, the connecting rod is fixedly connected to the inner right end of the mounting seat, the fan motor is fixedly installed on the left outer surface of the connecting rod, and the right end of the rotating shaft is connected to the output end of the fan motor.

[0014] A further improvement is that the heat dissipation mechanism includes a turntable and fan blades, the turntable is fixedly connected to the left end of the rotating shaft, and the nine fan blades are fixedly connected to the outer surface of the turntable in a ring shape. The turntable is driven to rotate by the fan motor in the mounting mechanism, thereby driving the fan blades to rotate and generate wind, thereby blowing the heat to the junction box to avoid excessive internal temperature and accelerated aging of electrical components.

[0015] A further improvement is that an air inlet is opened below the right outer surface of the junction box, a dustproof net is installed inside the air inlet, and heat dissipation holes are opened on the left and right outer surfaces of the junction box, and rain shields are installed outside the heat dissipation holes to prevent rainwater from flowing into the interior of the junction box.

[0016] A further improvement is that a sealed door is hinged on the front of the junction box to facilitate maintenance and inspection of electrical components inside the junction box. A rainproof roof is fixedly connected to the top of the junction box to provide rain protection and minimize rainwater from seeping into the interior of the junction box.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This firmly connected high-voltage cable junction box firmly connects the cable well and the junction box together through a connecting mechanism to achieve a stable connection. When encountering heavy rain, the sealing mechanism can absorb possible water seepage, further providing a sealing effect to prevent rainwater from seeping into the cable well and the interior of the junction box.

[0019] 2. The high-voltage cable junction box with a firm connection will start the heat dissipation device to dissipate the high temperature inside the junction box by blowing air when the weather is hot in summer, so as to avoid the internal temperature being too high and accelerating the aging of electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view structural diagram of the utility model;

[0021] Figure 2 For the utility model Figure 1 Schematic diagram of the split structure at A in the middle;

[0022] Figure 3 This is a schematic diagram of the top view of the fixed connection device of the present utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the heat dissipation device of the present invention from a side view.

[0024] In the figure: 1. Cable shaft; 2. Junction box; 301. Connecting base; 302. Connecting block; 303. Fixing bolt; 304. Nut; 305. Water-absorbing expansion water stop; 306. Water-absorbing sponge; 307. Rubber sealing ring; 401. Mounting seat; 402. Connecting rod; 403. Fan motor; 404. Rotating shaft; 405. Turntable; 406. Fan blade; 501. Dustproof net; 502. Rain shield; 503. Sealed box door; 504. Rain shield roof. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution: Example 1:

[0027] A high-voltage cable junction box with a firm connection comprises a cable well 1 and a junction box 2. The junction box 2 is installed above the cable well 1. The top of the cable well 1 and the bottom of the junction box 2 are respectively provided with fixed connection devices.

[0028] The fixed connection device includes a connecting mechanism and a sealing mechanism. The connecting mechanism is arranged at the bottom of the junction box 2, and the sealing mechanism is arranged inside the connecting mechanism.

[0029] The connecting mechanism includes a connecting base 301, a connecting block 302, a fixing bolt 303, and a nut 304. The connecting base 301 is fixedly connected to the bottom of the junction box 2. The four connecting blocks 302 are respectively fixedly connected to the front and rear ends of the left and right outer surfaces of the connecting base 301. The four fixing bolts 303 are respectively rotatably connected to the center of the upper surface of the connecting block 302, and the four nuts 304 are respectively threadedly connected to the bottom of the fixing bolts 303.

[0030] A threaded hole is provided through the center of the upper surface of the connecting block 302, and the fixing bolt 303 is threadedly connected to the inside of the threaded hole. The fixing bolt 303 cooperates with the nut 304 to firmly connect the two sets of connecting mechanisms together, thereby realizing a stable connection between the cable well 1 and the junction box 2.

[0031] The sealing mechanism includes a water-absorbing and expanding waterstop strip 305, a water-absorbing sponge 306, and a rubber sealing ring 307. The water-absorbing and expanding waterstop strip 305 is adhered to the inner side of the connecting base 301, the water-absorbing sponge 306 is adhered to the inner side of the water-absorbing and expanding waterstop strip 305, and the rubber sealing ring 307 is adhered to the inner side of the water-absorbing sponge 306. When encountering heavy rain, if there is slight water seepage at the connection between the cable well 1 and the junction box 2, the water-absorbing and expanding waterstop strip 305 absorbs water and expands, thereby improving the sealing effect and preventing rainwater from seeping into the interior of the cable well 1 and the junction box 2. The water-absorbing sponge 306 absorbs possible water seepage, and the rubber sealing ring 307 further provides a sealing effect.

[0032] An air inlet is provided on the lower right side of the outer surface of the junction box 2, with a dust screen 501 installed inside the air inlet. Heat dissipation holes are provided on the left and right outer surfaces of the junction box 2, each with a rain shield 502 installed outside the heat dissipation holes to prevent rainwater from flowing into the junction box 2. A sealed door 503 is hinged on the front of the junction box 2 to facilitate maintenance and inspection of the electrical components inside the junction box 2. A rain shield 504 is fixedly connected to the top of the junction box 2 to minimize rainwater from seeping into the interior of the junction box 2.

[0033] When in use, first place the junction box 2 on the cable well 1, then dock the two connecting bases 301, screw the fixing bolts 303 so that they pass through the threaded holes on the connecting blocks 302 on the two connecting bases 301, and then use the nuts 304 for final fixation, so that the cable well 1 and the junction box 2 are firmly connected together to achieve a stable connection. When encountering heavy rain, if there is slight water seepage at the connection between the cable well 1 and the junction box 2, the water-absorbing and expanding waterstop strip 305 absorbs water and expands, thereby improving the sealing effect and preventing rainwater from seeping into the interior of the cable well 1 and the junction box 2. The water-absorbing sponge 306 absorbs possible water seepage, and the rubber sealing ring 307 further provides a sealing effect. Example 2:

[0034] Based on the first embodiment, a heat dissipation device is provided inside the junction box 2. The heat dissipation device includes a mounting mechanism and a heat dissipation mechanism. The mounting mechanism is installed below the left inner surface of the junction box 2, and the heat dissipation mechanism is provided inside the mounting mechanism.

[0035] The mounting mechanism includes a mounting base 401, a connecting rod 402, a fan motor 403, and a rotating shaft 404. The mounting base 401 is fixedly connected to the lower left inner surface of the junction box 2, the connecting rod 402 is fixedly connected to the inner right end of the mounting base 401, the fan motor 403 is fixedly installed on the left outer surface of the connecting rod 402, and the right end of the rotating shaft 404 is connected to the output end of the fan motor 403.

[0036] The heat dissipation mechanism includes a turntable 405 and fan blades 406. The turntable 405 is fixedly connected to the left end of the rotating shaft 404. Nine fan blades 406 are annularly fixedly connected to the outer surface of the turntable 405. When the weather is hot in summer and the temperature is too high, the fan motor 403 is started to drive the rotating shaft 404 to rotate, and then the turntable 405 at the left end of the rotating shaft 404 is driven to rotate, thereby driving the fan blades 406 on the outer surface of the turntable 405 to rotate and generate wind, thereby blowing the heat to dissipate the heat of the junction box 2, preventing the internal temperature from being too high and accelerating the aging of electrical components.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A high-voltage cable junction box with a secure connection, comprising a cable well (1) and a junction box (2), wherein the junction box (2) is installed above the cable well (1), and is characterized in that: The top of the cable well (1) and the bottom of the junction box (2) are respectively provided with fixed connection devices, and the interior of the junction box (2) is provided with a heat dissipation device; The fixed connection device comprises a connection mechanism and a sealing mechanism, the connection mechanism is arranged at the bottom of the junction box (2), and the sealing mechanism is arranged inside the connection mechanism; The connecting mechanism comprises a connecting base (301), a connecting block (302), a fixing bolt (303), and a nut (304); the connecting base (301) is fixedly connected to the bottom of the junction box (2); the four connecting blocks (302) are respectively fixedly connected to the front and rear ends of the left and right outer surfaces of the connecting base (301); the four fixing bolts (303) are respectively rotatably connected to the center of the upper surface of the connecting block (302); and the four nuts (304) are respectively threadedly connected to the bottom of the fixing bolts (303).

2. A high-voltage cable distribution box with a secure connection according to claim 1, characterized in that: A threaded hole is provided through the center of the upper surface of the connection block (302), and the fixing bolt (303) is threadedly connected to the inside of the threaded hole.

3. A high-voltage cable distribution box with a secure connection according to claim 2, characterized in that: The sealing mechanism comprises a water-absorbing and swelling water-stop strip (305), a water-absorbing sponge (306), and a rubber sealing ring (307); the water-absorbing and swelling water-stop strip (305) is adhered to the inner side of the connecting base (301); the water-absorbing sponge (306) is adhered to the inner side of the water-absorbing and swelling water-stop strip (305); and the rubber sealing ring (307) is adhered to the inner side of the water-absorbing sponge (306).

4. A high-voltage cable distribution box with a secure connection according to claim 3, characterized in that: The heat dissipation device comprises a mounting mechanism and a heat dissipation mechanism, the mounting mechanism is mounted below the left inner surface of the junction box (2), and the heat dissipation mechanism is arranged inside the mounting mechanism; The mounting mechanism comprises a mounting seat (401), a connecting rod (402), a fan motor (403), and a rotating shaft (404); the mounting seat (401) is fixedly connected to the lower portion of the left inner surface of the junction box (2); the connecting rod (402) is fixedly connected to the inner right end of the mounting seat (401); the fan motor (403) is fixedly mounted on the left outer surface of the connecting rod (402); and the right end of the rotating shaft (404) is connected to the output end of the fan motor (403).

5. A high-voltage cable distribution box with a secure connection according to claim 4, characterized in that: The heat dissipation mechanism comprises a turntable (405) and fan blades (406), wherein the turntable (405) is fixedly connected to the left end of the rotating shaft (404), and nine fan blades (406) are annularly fixedly connected to the outer surface of the turntable (405).

6. A high-voltage cable distribution box with a secure connection according to claim 5, characterized in that: An air inlet is provided below the right outer surface of the junction box (2), a dust screen (501) is installed inside the air inlet, and heat dissipation holes are provided on the left and right outer surfaces of the junction box (2), rain shielding eaves (502) are installed outside the heat dissipation holes.

7. A high-voltage cable distribution box with a secure connection according to claim 6, characterized in that: A sealed box door (503) is hinged on the front of the branch box (2), and a rainproof top plate (504) is fixedly connected to the top of the branch box (2).

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