Moisture-proof box for cable joint

Abstract

The utility model provides a moistureproof box for a cable joint, which belongs to the technical field of high-voltage cables, and comprises a cable moistureproof box shell and a cable, the cable moistureproof box shell comprises a cable moistureproof box upper half shell and a cable moistureproof box lower half shell, after a cable is arranged in the cable moisture-proof box lower half shell, the cable moisture-proof box upper half shell is buckled on the cable moisture-proof box lower half shell and is fixedly connected with the cable moisture-proof box lower half shell, a cable joint of the cable is positioned in the middle of the cable moisture-proof box shell, and a cable joint intelligent temperature detection device is arranged on the cable joint; the cable moisture-proof box upper half shell is provided with a glue injection hole, and sealant is injected into an inner cavity between the cable moisture-proof box upper half shell and the cable moisture-proof box lower half shell. The cable well is suitable for long-distance cable line connection, compared with a conventional cable well, the construction cost is reduced, the cable well is not required to be used for protecting the cable joint by utilizing the moisture-proof box, materials are convenient to purchase, and the costs of machinery, construction, materials, labor and the like of civil engineering are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high -voltage cable technical field, concretely relates to a kind of moisture-proof box for cable joint. BACKGROUND

[0002] Generally in long distance cable line laying, since the length of a roll of cable is limited, multiple cables need to be connected together, so more cable joints will appear, in power system, cable joint is important continuous point in cable line. Cable joint generally adopts the way of two cables directly connected, so in actual engineering, insulation damage can occur due to moisture intrusion, mechanical stress and other external forces, thereby causing breakdown explosion accident. These accidents can not only damage cable and equipment, but also cause fire or larger explosion, causing great threat to personnel and property.

[0003] Publication No. CN209461995U discloses a kind of moisture-proof cable joint protection box convenient to install, including upper half box, the upper half box lower half box is spliced, the upper half box splicing surface two sides are fixed with edge pressing, the lower half box splicing surface two sides are provided with pressing groove, the upper half box two sides outer surface close to edge pressing is equipped with slot, the lower half box two sides outer surface close to pressing groove is fixed with fixed block, the fixed block surface is fixed with buckle, the buckle is fixed with fixed block through pivot. The utility model discloses when installing protection box, cable joint is placed in lower half box, makes the cable of two ends pass through the two ends of lower half box, then upper half box is covered on the surface of lower half box, buckle transversely passes through slot, then buckle is rotated, buckle is rotated ° by the driving of pivot, so that buckle is clamped on slot, upper half box and lower half box can be fixed well, fixed by clamping, convenient to install and disassemble.

[0004] In general cable joint construction, cable well construction is usually adopted, but cable well construction has many disadvantages, for example: cable well construction needs more material and labor cost, needs large area of earth excavation operation, can cause dust and mechanical equipment noise pollution, after earth excavation, backfilling, brick masonry construction and other overall construction period will be longer, work efficiency is low, cable well construction is sometimes subject to region and environment, construction flexibility and adaptability are not high.

[0005] To solve this problem, the utility model provides a kind of moisture-proof box for preventing cable joint explosion for cable joint. SUMMARY

[0006] In order to overcome the direct connection of the cable joint may cause leakage, leakage, corrosion, bite problem, the utility model provides a kind of moisture-proof box for cable joint, the utility model protects cable joint using moisture-proof box, without using cable well, and material procurement is convenient, reduce the cost of civil engineering machinery, construction, material, artificial etc.

[0007] The utility model discloses a technical scheme for:

[0008] A kind of moisture-proof box for cable joint, including cable moisture-proof box shell and cable, the cable moisture-proof box shell includes cable moisture-proof box upper half shell and cable moisture-proof box lower half shell, the cable moisture-proof box lower half shell is equipped with cable moisture-proof box upper half shell after cable, and cable moisture-proof box lower half shell is connected and fixed, the cable joint of the cable is located in the middle of cable moisture-proof box shell, and cable joint is equipped with cable joint intelligent temperature detecting device on it;The cable moisture-proof box upper half shell is equipped with glue injection hole, and sealing glue is injected in the inner cavity between the cable moisture-proof box upper half shell and the cable moisture-proof box lower half shell.

[0009] The cable moisture-proof box shell of the cable moisture-proof box shell of both sides port is sealed and connected by filling material and the internal cable spare part.

[0010] The filling material is mud.

[0011] The cable moisture-proof box shell both ends are sealed by waterproof composite tape.

[0012] The cable moisture-proof box upper half shell and the cable moisture-proof box lower half shell both ends are connected and fixed by explosion-proof lock mother.

[0013] The cable joint intelligent temperature detecting device is fixed on the cable joint in the middle of cable in the cable moisture-proof box shell by insulating adhesive tape.

[0014] The center position of the lower half shell is consistent with the center position of the outer sheath end face of the both ends of cable after planing.

[0015] The cable moisture-proof box shell both ends are covered with equal length.

[0016] The cable joint is installed with waterproof composite tape and armor belt.

[0017] The cable moisture-proof box lower half shell and the cable moisture-proof box upper half shell are connected and fixed by multiple fixed bolts.

[0018] The utility model has the advantages of:

[0019] The cable moisture-proof box upper half shell and the cable moisture-proof box lower half shell are connected and fixed through the explosion-proof lock nut, the explosion-proof lock nut has the performances of explosion-proof, fireproof and corrosion-proof, can guarantee the safety of equipment and personnel under extreme conditions, and has high corrosion resistance.

[0020] In the utility model, the explosion-proof lock nut has high bearing capacity and stability, can bear stress and vibration under complex environment and working conditions for a long time, and effectively increases the safety performance and service life of the moisture-proof box.

[0021] In the utility model, the cable and the empty part at the two ends of the cable moisture-proof box shell are filled with mud (or other fillers) through the two side ports of the cable moisture-proof box shell, and the two ends are wrapped with a waterproof composite belt to be sealed, so that other impurities cannot enter the cable moisture-proof box shell during use.

[0022] The utility model is suitable for long-distance cable line connection, and compared with conventional cable well construction cost reduction, the moisture-proof box of the cable joint provided by the utility model is used for protecting the cable joint, the cable well is not needed, material procurement is convenient, and the cost of mechanical engineering, construction, material and labor of civil engineering is reduced. The utilization rate of equipment is high, and the transportation equipment such as truck only needs to transport materials to the designated position, and the next task can be continued without waiting, so that the flexibility and utilization rate of transportation equipment and personnel are improved. Meanwhile, for the installation personnel of the moisture-proof box of the cable joint, the elevator shaft and the brick masonry structure strength do not need to be waited for reaching the requirement, so that the personnel can timely and continuously carry out installation operation. And in the subsequent, the cable well does not need to be removed, only the moisture-proof box with fault needs to be replaced, and the operation and maintenance personnel are more convenient. DRAWINGS

[0023] Figure 1 It is a cable moisture-proof box lower half shell structure schematic view of the utility model.

[0024] Figure 2 It is a cable moisture-proof box upper half shell structure schematic view of the utility model.

[0025] The utility model will be further explained in detail in combination with the drawings.

[0026] In the drawings, the reference signs are:

[0027] 1, explosion-proof lock nut; 2, fixed bolt; 3, connecting bolt; 4, cable moisture-proof box shell; 5, glue injection hole. CONCRETE IMPLEMENTATION

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present utility model.

[0029] Various structural schematic diagrams according to the disclosed embodiments of the present utility model are shown in the drawings. These diagrams are not drawn to scale, in which some details are enlarged for the purpose of clear expression, and some details can be omitted. The shapes of various regions, layers and their relative size and position relationship shown in the diagrams are only exemplary, and in practice, there can be deviations due to manufacturing tolerances or technical limitations, and regions / layers with different shapes, sizes and relative positions can be additionally designed by those skilled in the art according to actual needs.

[0030] Embodiment 1:

[0031] In order to overcome the problems of leakage, water leakage, corrosion and biting that may be caused by the direct connection of the existing cable joint, the present utility model provides a moisture-proof box for cable joint as shown in Figure 1 and Figure 2 The present utility model protects the cable joint by using the moisture-proof box, without using a cable well, and the material procurement is convenient, reducing the costs of machinery, construction, materials, labor and the like of civil engineering.

[0032] A moisture-proof box for cable joint, comprising a cable moisture-proof box shell 4 and a cable, the cable moisture-proof box shell 4 comprises a cable moisture-proof box upper half shell and a cable moisture-proof box lower half shell, the cable moisture-proof box lower half shell is internally provided with a cable, the cable moisture-proof box upper half shell is buckled on the cable moisture-proof box lower half shell and is connected and fixed, the cable joint of the cable is located in the middle part of the cable moisture-proof box shell 4, and the cable joint is provided with a cable joint intelligent temperature detection device; the cable moisture-proof box upper half shell is provided with a glue injection hole 5, and sealing glue is injected into the inner cavity between the cable moisture-proof box upper half shell and the cable moisture-proof box lower half shell.

[0033] The present utility model protects the cable joint by using the moisture-proof box, without using a cable well, and the material procurement is convenient, reducing the costs of machinery, construction, materials, labor and the like of civil engineering. Figure 1 and Figure 2As shown, the cable moisture-proof box shell 4 includes a cable moisture-proof box upper half shell and a cable moisture-proof box lower half shell, in use, the cable is threaded in the upper and lower two half shells, then the two half shells are connected and fixed, and are sealed in multiple aspects, so that the cable joint of the cable is always located in the cable moisture-proof box shell 4, and problems such as loosening or leakage do not occur, thereby causing poor contact.

[0034] The cable in the utility model is 35kV and below. The utility model is suitable for long-distance cable line connection, compared with conventional cable well construction cost reduction, the cable joint is protected by the moisture-proof box of the cable joint provided by the utility model, without using the cable well, and the material procurement is convenient, and the cost of machinery, construction, material, labor and the like of the civil engineering is reduced. The equipment utilization rate is high, and the transportation equipment such as a truck only needs to deliver materials to a specified position, and the next task can be continued without waiting, so that the flexibility and utilization rate of transportation equipment and personnel are improved. At the same time, for the installation personnel of the moisture-proof box of the cable joint, the brick masonry structure strength can be made to meet the requirements without waiting, so that personnel can timely and continuously install the operation. And in the subsequent, the cable well does not need to be removed, and only the moisture-proof box with a fault needs to be replaced, which is more convenient for operation and maintenance personnel. The utility model overcomes the problems of leakage, water leakage, corrosion and biting damage that may be caused by the direct connection of the cable joint in the prior art. Construction cost is saved, and at the same time, the connection of the cable joint is not limited by the region, and the construction period is shortened.

[0035] Embodiment 2:

[0036] Based on the basis of embodiment 1, in the embodiment, preferably, the cable moisture-proof box shell 4 at the two side ports of the cable moisture-proof box shell 4 is sealed and connected with the internal cable spare part by filling material.

[0037] Preferably, the filling material is mud.

[0038] Preferably, the cable moisture-proof box shell 4 is sealed by waterproof composite tape at both ends.

[0039] Preferably, the cable moisture-proof box lower half shell and the cable moisture-proof box upper half shell are connected and fixed by a plurality of fixing bolts 2.

[0040] In the utility model, the upper half of the moisture-proof box is buckled on the lower half, that is, the cable moisture-proof box upper half shell is buckled on the cable moisture-proof box lower half shell, and the upper and lower box bodies are fastened in one body through the corresponding bolt hole, so that the problem of random movement does not occur.

[0041] In the utility model, the cable and the empty part at the both ends of the cable moisture-proof box shell 4 are filled with mud (or other filler) at the both side ports of the box body, and the both ends are wrapped with waterproof composite tape to make it sealed.

[0042] Preferably, the cable moisture-proof box upper half shell and the cable moisture-proof box lower half shell are connected and fixed through the explosion-proof lock nut 1.

[0043] In the utility model, the explosion-proof lock nut 1 has the properties of explosion-proof, fireproof and corrosion-proof, can guarantee the safety of equipment and personnel under extreme conditions, and has high corrosion resistance.

[0044] In the utility model, the explosion-proof lock nut 1 has high bearing capacity and stability, can bear stress and vibration under complex environment and working conditions for a long time, and effectively increases the safety performance and service life of the moisture-proof box.

[0045] Preferably, the cable joint intelligent temperature detection device is fixed on the cable joint in the middle of the cable moisture-proof box shell 4 through the insulating tape.

[0046] In the utility model, the cable joint intelligent temperature detection device is preferably a temperature sensor, and the temperature sensor is fixed on the main body of the cable joint in the middle of the cable through J20 or J30 insulating tape. The temperature sensor and the main body of the cable joint are in close contact, and when the cable joint intelligent temperature detection device is installed, it must be first passed through one of the hole covers with glue injection holes 5 and then passed through one of the box bodies with glue injection holes 5, and then fastened on the main body of the middle cable joint.

[0047] Preferably, the center position of the lower half shell is consistent with the center position of the outer sheath end face of the cable after planing.

[0048] Preferably, the both ends of the cable moisture-proof box shell 4 and the outer sheath fracture of the both ends of the cable are covered with equal length.

[0049] Preferably, the cable joint is externally provided with a waterproof composite tape and an armor tape.

[0050] In the utility model, a mounting method of the moisture-proof box for the cable joint is as follows:

[0051] Firstly, the cable moisture-proof box lower half shell and the cable moisture-proof box upper half shell are assembled, and the cable moisture-proof box upper half shell is buckled on the cable moisture-proof box lower half shell. Figure 1 and Figure 2As shown, if the lower half shell of the cable moisture-proof box and the upper half shell of the cable moisture-proof box are both two small pieces, the two small pieces with holes are assembled into the upper half shell of the cable moisture-proof box, and the two small pieces without holes are assembled into the lower half shell of the cable moisture-proof box.

[0052] In the second step, the temperature sensor of the cable joint intelligent temperature detection device is fixed on the main body of the cable joint in the middle of the cable by using J20 or J30 insulation tape, so that it is in close contact.

[0053] In the third step, the waterproof composite tape and the armor tape are installed on the cable joint in the middle of the cable, and the waterproof composite tape is wound on the main body of the cable joint in the middle of the cable.

[0054] In the fourth step, the moisture-proof box is filled with glue, the center positions of the lower half shell of the cable moisture-proof box and the outer sheath end faces of the two ends of the cable after being cut are made consistent, the two ends of the cable moisture-proof shell 4 are covered with the same amount of glue as the outer sheath breakage of the two ends of the cable, the upper half shell of the cable moisture-proof box is buckled on the lower half shell of the cable moisture-proof box, the bolt hole position is aligned, and the upper and lower parts of the cable moisture-proof shell 4 are fastened by using the fixing bolt 2, the cable and the corresponding cable moisture-proof shell 4 are filled with the remaining part of the cable by using the mortar (or other filler) on the both sides of the cable moisture-proof shell 4, and the both ends are wrapped with the waterproof composite tape to make it sealed.

[0055] In the fifth step, the selected sealant A group and B group are mixed and stirred uniformly, the mixed material is poured into the cable moisture-proof shell 4 through the glue injection port 5 until it is filled and covered with the hole cover, and the installation is completed.

[0056] The sealant injected in the utility model can be selected one or more for mixing according to requirements, the sealant in the utility model is the prior art, and the sealant in the utility model will not be described in detail. The sealant A group and the sealant B group in the utility model are selected according to requirements, and the required sealing effect can be ensured.

[0057] In use, the cable is inserted into the upper and lower two half shells, then the two half shells are connected and fixed, and are sealed in multiple ways. The filler is blocked at the both ends of the cable moisture-proof shell 4, then the waterproof composite tape is wound to seal, and the glue is injected into the cable moisture-proof shell 4 through the glue injection hole 5.

[0058] The utility model is suitable for long distance cable line splicing, compared with conventional cable well construction cost reduction, the utility model discloses a cable joint's dampproof box is used to protect the cable joint, need not use the cable well, and material purchase is convenient, reduced civil engineering's machinery, construction, material, manual work etc. Cost. Equipment utilization is high, and the transport equipment such as truck only needs to send material to the designated position, need not wait to continue the next task, improves the flexibility and utilization of transport equipment and personnel. At the same time, for the installer of the dampproof box for installing the cable joint, need not wait for the elevator shaft to reach the required strength of brick masonry structure, can make personnel in time, continuous installation operation. And in the subsequent, need not remove the cable well, only need to replace the dampproof box with fault, to the operation and maintenance personnel is more convenient.

[0059] The utility model overcomes the problem of leakage, water leakage, corrosion and biting damage that may be caused by the direct connection of the cable joint in the prior art. The construction cost is saved, and at the same time, the connection of the cable joint is not limited by the region, and the construction period is shortened.

[0060] The utility model is more energy-saving and environment-friendly than the cable well, the dampproof box provided by the utility model adopts lightweight alloy material and is treated by high-tech spraying, and has the advantages of wear resistance, corrosion resistance, waterproofness and dustproofness, and can be used outdoors for a long time. It has strong anti-aging and ultraviolet resistance, so it does not need to be replaced frequently after using the dampproof box provided by the utility model. At the same time, the dampproof box has good electromagnetic compatibility and does not interfere with the surrounding environment, reduces the influence on the surrounding ecological environment and residents' life, realizes green construction, and meets the high environmental protection requirements of engineering construction.

[0061] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0062] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and do not intend to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular form "a", "an" and "the" is intended to include plural forms.

[0063] The above examples only illustrate the present application and do not constitute a limitation on the scope of protection of the present application. Any design identical or similar to the present application falls within the scope of protection of the present application. The device structure and method steps not described in detail in the present application are prior art, and will not be further described in the present application.

Claims

1. A moisture barrier box for a cable splice, characterized by: The utility model relates to a cable moistureproof box shell (4) and cable, the cable moistureproof box shell (4) includes cable moistureproof box upper half shell and cable moistureproof box lower half shell, the cable moistureproof box lower half shell is equipped with the cable, the cable moistureproof box upper half shell is buckled on the cable moistureproof box lower half shell and is connected and fixed, the cable joint of the cable is located in the middle of the cable moistureproof box shell (4), and the cable joint is equipped with the cable joint intelligent temperature detecting device, the cable moistureproof box upper half shell is equipped with glue injection hole (5), the inner chamber between the cable moistureproof box upper half shell and the cable moistureproof box lower half shell is injected with sealant.

2. A moisture barrier box for a cable splice according to claim 1, wherein: The cable moistureproof box shell (4) is filled and sealed with the spare part of the cable in the inside through the filler at the both side ports of the cable moistureproof box shell (4).

3. A moisture barrier box for a cable splice according to claim 2, wherein: The filler is mud.

4. A moisture barrier box for a cable splice according to claim 2, wherein: The both ends of the cable moistureproof box shell (4) are sealed through waterproof composite tape.

5. A moisture barrier box for a cable splice according to claim 1, wherein: The cable moistureproof box upper half shell and the cable moistureproof box lower half shell are connected and fixed through the explosion-proof lock nut (1) at both ends.

6. A moisture barrier box for a cable splice according to claim 1, wherein: The cable joint intelligent temperature detecting device is fixed on the cable joint in the middle of the cable in the cable moistureproof box shell (4) through the insulating adhesive tape.

7. A moisture barrier box for a cable splice according to claim 1, wherein: The center position of the lower half shell is consistent with the center position of the outer sheath end face of the both ends of the cable after planing.

8. A moisture barrier box for a cable splice according to claim 1, wherein: The both ends of the cable moistureproof box shell (4) are covered with equal length at the outer sheath fracture of the both ends of the cable.

9. A moisture barrier box for a cable splice according to claim 1, wherein: The cable joint is externally installed with waterproof composite tape and armor tape.

10. A moisture barrier box for a cable splice according to claim 1, wherein: The cable moistureproof box lower half shell and the cable moistureproof box upper half shell are connected and fixed through the plurality of fixed bolts (2).

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