Power distribution network cable joint fault diagnosis equipment and use method

Abstract

The invention discloses power distribution network cable joint fault diagnosis equipment, which belongs to the technical field of cable joint fault diagnosis and comprises a shell, a top cover is arranged at the upper end of the shell, a fixed wall connecting assembly is arranged on the rear side wall of the shell, and a buried connecting assembly is arranged at the lower end of the shell. A signal transmitting device and an electric control device are arranged at the left end of the shell, the electric control device is electrically connected with the signal transmitting device, a humidity sensor and a temperature sensor are arranged in the shell, and the humidity sensor and the temperature sensor are both electrically connected with the electric control device. A clamping and fixing assembly used for clamping and fixing a cable connector is arranged in the shell, a wire inlet hole is formed in the left side wall of the shell, and a wire outlet hole is formed in the right side wall of the shell. According to the invention, a fault signal of the cable joint can be sent to a mobile device of an operator, the operator is reminded of on-site detection, real-time monitoring and diagnosis of the fault of the cable joint are realized, and the working efficiency of the operator is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cable joint fault diagnosis, and in particular relates to a distribution network cable joint fault diagnosis device and a use method. Background Art

[0002] The fault diagnosis of cable joints in the distribution network is directly related to the stable operation and safety of the power system. Common types of cable joint failures include mechanical damage: During installation or operation, the cable joint may be mechanically damaged by external forces (such as construction, vehicle rolling, etc.), which in turn affects the insulation performance and connection quality of the joint. Insulation dampness: If the cable joint is not sealed well or is affected by environmental humidity, it is easy to cause the insulation material to be damp, reduce the insulation performance, and even cause a short circuit fault. Poor contact: Due to poor joint manufacturing process or long-term operation, the contact surface is oxidized and corroded, resulting in poor contact at the joint, increased resistance, local overheating, and damage to the insulation material. Chemical corrosion: In corrosive environments such as acids and alkalis, the metal parts and insulation materials at the cable joint may be chemically corroded, resulting in a decrease in joint performance. Overvoltage: Overvoltage in the power system (such as lightning strikes, operating overvoltage, etc.) may be transmitted to the joint through the cable, causing insulation breakdown or damage.

[0003] The cable joint fault diagnosis methods in the prior art include the visual inspection method: visually inspect the appearance of the cable joint to check whether there is damage, deformation, burning, etc., and preliminarily determine whether the joint has a fault. Infrared thermal imaging method: use an infrared thermal imager to perform non-contact temperature measurement on the cable joint to detect whether there is local overheating at the joint, so as to determine whether the joint is operating normally. Insulation resistance test method: use a megohmmeter to measure the insulation resistance value of the cable joint to determine whether the insulation performance of the joint is good. If the insulation resistance value is too low, it may mean that there is a grounding fault or a low-resistance fault in the joint. Partial discharge detection method: use a partial discharge detector to detect the cable joint, and analyze the insulation state and fault type of the joint by capturing the partial discharge signal generated at the joint. High-frequency pulse reflection method: use the principle of high-frequency pulse signals propagating and reflecting in the cable, and calculate the location of the fault point at the joint by measuring the time and speed of the reflected signal. This method is suitable for the diagnosis of high-resistance faults and flashover faults. However, the above methods all have the disadvantage of requiring operators to manually inspect and find problems, and cannot perform real-time fault monitoring of cable joints and send the fault location to the operator's mobile device in a timely manner if a cable joint fault is found. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a distribution network cable joint fault diagnosis device and a method of use, which solves the problems in the above-mentioned background technology.

[0005] The object of the present invention is achieved in that: A distribution network cable connector fault diagnosis device, comprising a shell, a top cover is provided at the upper end of the shell, a wall-fixing connection assembly is provided at the rear side wall of the shell, a buried connection assembly is provided at the lower end of the shell, a signal transmitter and an electric control device are provided at the left end of the shell, and the electric control device is electrically connected to the signal transmitter, a humidity sensor and a temperature sensor are provided inside the shell, and the humidity sensor and the temperature sensor are both electrically connected to the electric control device, a clamping assembly for clamping and fixing the cable connector is provided inside the shell, a wire inlet hole is provided on the left side wall of the shell, and a wire outlet hole is provided on the right side wall of the shell. When in use, the shell is sleeved on the outside of the connector position of two cables, the cable connector at one end of one cable is inserted into the wire inlet hole, and the cable connector at one end of the other cable is inserted into the wire outlet hole, so that the connectors of the two cables are connected inside the shell, and the connectors of the two cables are inserted into the inside of the clamping assembly. After the connectors of the two cables are connected, the connection position is clamped and fixed by using the clamping assembly, so as to further enhance the stability of the cable connector connection. The housing is fixedly installed along the path of the cable, or fixed to the wall by bolts and wall-fixing connection components, or the housing is firmly buried underground together with the cable by using underground connection components. When the cable joint fails, the cable joint connection heats up or catches fire, and the humidity sensor and temperature sensor inside the housing deviate greatly from the preset values. At this time, under the action of the electronic control device and the signal transmitter, the signal transmitter sends a signal with a large deviation to the operator's mobile device to remind the operator to go to the site for inspection, so as to realize real-time monitoring and diagnosis of cable joint failures, greatly improving the work efficiency of the operator.

[0006] Furthermore, the clamping assembly includes an upper clamp and a lower clamp; the lower clamp includes a bottom plate fixedly arranged on the inner bottom surface of the shell, a spring is fixedly arranged on the upper end of the bottom plate, a lower clamping seat is fixedly arranged on the upper end of the spring, an arc-shaped notch is provided on the upper surface of the lower clamping seat, and a plurality of lower convex strips are fixedly arranged inside the arc-shaped notch. When in use, the connectors of the two cables are placed between the upper clamp and the lower clamp, and when the upper clamp is completely pressed on the top of the two cable connectors, the upper clamp squeezes the lower clamp to move downward, and the spring is compressed at this time, and the connectors of the two cables are clamped and fixed between the upper clamp and the lower clamp by the action of the spring restoring force. By setting the lower convex strips, the friction between the cable connector and the lower clamp is increased, and the stability is enhanced.

[0007] Furthermore, the upper clamping member includes a vertical column fixedly arranged on the inner wall of the top cover, and the vertical column is arranged corresponding to the bottom plate, and an upper clamping seat corresponding to the lower clamping seat is fixedly arranged at the lower end of the vertical column, and an arc-shaped notch is opened on the lower surface of the upper clamping seat, and a plurality of upper convex strips are fixedly arranged inside the arc-shaped notch. When in use, after the connectors of the two cables are connected above the lower clamping member, the top cover is closed to the top of the shell, so that the upper clamping seat presses the connectors of the two cables downward, and the connectors of the two cables are fixed by the mutual cooperation of the upper clamping seat and the lower clamping seat. The friction between the cable connector and the upper clamping seat is increased by the provision of the upper convex strips.

[0008] Furthermore, the wall-fixing connection assembly includes a first ear, a second ear, a third ear and a fourth ear, and the first ear, the second ear, the third ear and the fourth ear are respectively fixedly connected to the four corners of the rear side wall of the shell, and the plate surfaces of the first ear, the second ear, the third ear and the fourth ear are all provided with threaded holes. When in use, bolts or screws are screwed into the threaded holes of the first ear, the second ear, the third ear and the fourth ear to complete the wall fixing of the shell, and the operation is simple and quick.

[0009] Furthermore, the underground connection assembly includes a plurality of left extension rods fixedly connected to the left end of the shell, and a plurality of right extension rods fixedly connected to the right end of the shell, and the left extension rods and the right extension rods are both hollow structures, the left extension rod is slidably connected to the inside of the left extension rod, and the right extension rod is slidably connected to the inside of the right extension rod. When in use, when the shell is buried underground, the left inner rod is pulled out from the inside of the left extension rod, and the right inner rod is pulled out from the inside of the right extension rod, and after the shell is buried underground, the shell grips the ground more firmly.

[0010] Furthermore, the rear end of the top cover is rotatably connected to the upper rear side wall of the shell through a pin, and the front end of the top cover is detachably connected to the upper front side wall of the shell through a lock assembly. The model of the humidity sensor is HDC3022; the model of the temperature sensor is CWDZ101 wireless temperature transmitter.

[0011] A method for using a distribution network cable connector fault diagnosis device, comprising placing a first connector at one end of a first cable and a second connector at one end of a second cable inside the housing, and placing the first connector and the second connector inside a clamping assembly, and fixing the first connector and the second connector by the clamping assembly. The first connector is inserted into the clamping assembly through the wire inlet hole, and the second connector is inserted into the clamping assembly through the wire outlet hole, and the clamping assembly automatically clamps and fixes the first connector and the second connector. The wall-fixed connection assembly is used to fix the housing to a wall, the underground connection assembly is used to increase stability when the housing is buried underground, and the signal transmitting device is used to send electrical signals from a humidity sensor and a temperature sensor to a mobile device; the humidity sensor is used to monitor the humidity inside the housing in real time, and the temperature sensor is used to monitor the temperature inside the housing in real time.

[0012] The beneficial effects of the present invention are as follows: the housing is sleeved on the outside of the joint position of the two cables, the cable connector at one end of one cable is inserted into the inside of the inlet hole, and the cable connector at one end of the other cable is inserted into the inside of the outlet hole, so that the joints of the two cables are connected inside the housing, and the joints of the two cables are inserted into the inside of the clamping assembly. After the joints of the two cables are connected, the connection position is clamped and fixed by the clamping assembly to further enhance the stability of the cable joint connection. The housing is fixedly installed along the path of the cable, or the housing is fixed to the wall by bolts and the fixed wall connection assembly, or the housing is firmly buried underground with the cable by the underground connection assembly. When the cable joint fails, the cable joint connection is heated or ignited, and the humidity sensor and the temperature sensor inside the housing have a large deviation from the preset value. At this time, under the action of the electric control device and the signal transmitting device, the signal transmitting device is used to send a signal with a large deviation to the mobile device of the operator, reminding the operator to go to the site for detection, so as to realize the real-time monitoring and diagnosis of the cable joint failure, and greatly improve the work efficiency of the operator.

[0013] Put the connectors of the two cables between the upper clamp and the lower clamp. When the upper clamp is completely pressed on the top of the two cable connectors, the upper clamp squeezes the lower clamp to move downward. At this time, the spring is compressed. The spring restoring force is used to clamp the connectors of the two cables between the upper clamp and the lower clamp. The lower convex strip is set to increase the friction between the cable connector and the lower clamp seat to enhance stability. After the connectors of the two cables are connected above the lower clamp, the upper clamp seat is closed to the top of the shell so that the upper clamp seat squeezes the connectors of the two cables downward. The connectors of the two cables are fixed by the mutual cooperation of the upper clamp seat and the lower clamp seat. The upper convex strip is set to increase the friction between the cable connector and the upper clamp seat. When the shell is buried underground, the left inner rod is pulled out from the inside of the left extension rod, and the right inner rod is pulled out from the inside of the right extension rod. After the shell is buried underground, the shell grips the ground more firmly. Bolts or screws are screwed into the threaded holes of the first support ear, the second support ear, the third support ear and the fourth support ear to complete the fixing of the shell to the wall. The operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a main structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the top view of the structure of the present invention; Figure 3 It is a left-side structural schematic diagram of the present invention; Figure 4 The present invention Figure 1 Middle AA section; Figure 5 The present invention Figure 2 Middle BB section; Figure 6 It is a schematic diagram of the three-dimensional structure of the present invention from a left top view; Figure 7 The present invention Figure 6 Middle A: Enlarged view; Figure 8 It is a right top view of the three-dimensional structure of the present invention; Fig. 9 It is a bottom-up three-dimensional structural schematic diagram of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the shell without the top cover when viewed from above.

[0015] In the figure: 1, shell 2, top cover 3, signal transmitting device 4, electronic control device 5, humidity sensor 6, temperature sensor 7, wire inlet hole 8, wire outlet hole 9, bottom plate 10, spring 11, lower clamping seat 12, lower convex strip 13, vertical column 14, upper clamping seat 15, upper convex strip 16, first ear 17, second ear 18, third ear 19, fourth ear 20, left extension rod 21, left inner rod 22, lock assembly. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings. It should be noted that all directional words such as up, down, front, back, left, and right that appear in the present invention are based on Figure 1 The directional words are made for reference figures, and all directional words do not limit the present invention, but are only for more clear illustration and explanation of the present invention. Example

[0017] like Figure 1-10 As shown, this embodiment discloses a distribution network cable connector fault diagnosis device, which includes a housing 1, a top cover 2 is provided at the upper end of the housing 1, a wall-fixing connection assembly is provided at the rear side wall of the housing 1, a buried connection assembly is provided at the lower end of the housing 1, a signal transmitter 3 and an electric control device 4 are provided at the left end of the housing 1, and the electric control device 4 is electrically connected to the signal transmitter 3, a humidity sensor 5 and a temperature sensor 6 are provided inside the housing 1, and the humidity sensor 5 and the temperature sensor 6 are both electrically connected to the electric control device 4, a clamping assembly for clamping and fixing the cable connector is provided inside the housing 1, a wire inlet hole 7 is provided on the left side wall of the housing 1, and a wire outlet hole 8 is provided on the right side wall of the housing 1. When in use, the housing 1 is sleeved on the outside of the connector position of the two cables, the cable connector at one end of one cable is inserted into the wire inlet hole 7, and the cable connector at one end of the other cable is inserted into the wire outlet hole 8, so that the connectors of the two cables are connected inside the housing 1, and the connectors of the two cables are inserted into the inside of the clamping assembly. After the two cables are connected, the connection position is clamped and fixed by a clamping assembly to further enhance the stability of the cable joint connection. The housing 1 is fixedly installed along the path of the cable, or the housing 1 is fixed to the wall by bolts and a fixed wall connection assembly, or the housing 1 is firmly buried underground together with the cable by using an underground connection assembly. When a cable joint fails, the cable joint connection generates heat or catches fire, and the humidity sensor 5 and the temperature sensor 6 inside the housing 1 deviate greatly from the preset values. At this time, under the action of the electronic control device 4 and the signal transmitter 3, the signal transmitter 3 sends a signal with a large deviation to the operator's mobile device to remind the operator to go to the site for inspection, so as to realize real-time monitoring and diagnosis of cable joint failures, greatly improving the work efficiency of the operator.

[0018] A method for using a distribution network cable connector fault diagnosis device includes placing a first connector at one end of a first cable and a second connector at one end of a second cable inside the housing 1, and placing the first connector and the second connector inside a clamping assembly, and fixing the first connector and the second connector by the clamping assembly. The first connector is inserted into the clamping assembly through the inlet hole 7, and the second connector is inserted into the clamping assembly through the outlet hole 8, and the clamping assembly automatically clamps and fixes the first connector and the second connector. The wall-fixed connection assembly is used to fix the housing 1 to the wall, and the underground connection assembly is used to increase the stability when the housing 1 is buried underground. The signal transmitting device 3 is used to send electrical signals from the humidity sensor 5 and the temperature sensor 6 to a mobile device; the humidity sensor 5 is used to monitor the humidity inside the housing 1 in real time, and the temperature sensor 6 is used to monitor the temperature inside the housing 1 in real time. Example

[0019] like Figure 1-10 As shown, this embodiment discloses a distribution network cable connector fault diagnosis device, which includes a housing 1, a top cover 2 is provided at the upper end of the housing 1, a wall-fixing connection assembly is provided at the rear side wall of the housing 1, a buried connection assembly is provided at the lower end of the housing 1, a signal transmitter 3 and an electric control device 4 are provided at the left end of the housing 1, and the electric control device 4 is electrically connected to the signal transmitter 3, a humidity sensor 5 and a temperature sensor 6 are provided inside the housing 1, and the humidity sensor 5 and the temperature sensor 6 are both electrically connected to the electric control device 4, a clamping assembly for clamping and fixing the cable connector is provided inside the housing 1, a wire inlet hole 7 is provided on the left side wall of the housing 1, and a wire outlet hole 8 is provided on the right side wall of the housing 1. When in use, the housing 1 is sleeved on the outside of the connector position of the two cables, the cable connector at one end of one cable is inserted into the wire inlet hole 7, and the cable connector at one end of the other cable is inserted into the wire outlet hole 8, so that the connectors of the two cables are connected inside the housing 1, and the connectors of the two cables are inserted into the inside of the clamping assembly. After the two cables are connected, the connection position is clamped and fixed by a clamping assembly to further enhance the stability of the cable joint connection. The housing 1 is fixedly installed along the path of the cable, or the housing 1 is fixed to the wall by bolts and a fixed wall connection assembly, or the housing 1 is firmly buried underground together with the cable by using an underground connection assembly. When a cable joint fails, the cable joint connection generates heat or catches fire, and the humidity sensor 5 and the temperature sensor 6 inside the housing 1 deviate greatly from the preset values. At this time, under the action of the electronic control device 4 and the signal transmitter 3, the signal transmitter 3 sends a signal with a large deviation to the operator's mobile device to remind the operator to go to the site for inspection, so as to realize real-time monitoring and diagnosis of cable joint failures, greatly improving the work efficiency of the operator.

[0020] A method for using a distribution network cable connector fault diagnosis device includes placing a first connector at one end of a first cable and a second connector at one end of a second cable inside the housing 1, and placing the first connector and the second connector inside a clamping assembly, and fixing the first connector and the second connector by the clamping assembly. The first connector is inserted into the clamping assembly through the inlet hole 7, and the second connector is inserted into the clamping assembly through the outlet hole 8, and the clamping assembly automatically clamps and fixes the first connector and the second connector. The wall-fixed connection assembly is used to fix the housing 1 to the wall, and the underground connection assembly is used to increase the stability when the housing 1 is buried underground. The signal transmitting device 3 is used to send electrical signals from the humidity sensor 5 and the temperature sensor 6 to a mobile device; the humidity sensor 5 is used to monitor the humidity inside the housing 1 in real time, and the temperature sensor 6 is used to monitor the temperature inside the housing 1 in real time.

[0021] In order to achieve better effect, the clamping assembly includes an upper clamp and a lower clamp; the lower clamp includes a bottom plate 9 fixedly arranged on the inner bottom surface of the housing 1, a spring 10 is fixedly arranged on the upper end of the bottom plate 9, a lower clamping seat 11 is fixedly arranged on the upper end of the spring 10, an arc-shaped notch is opened on the upper surface of the lower clamping seat 11, and a plurality of lower convex strips 12 are fixedly arranged inside the arc-shaped notch. When in use, the connectors of the two cables are placed between the upper clamp and the lower clamp. When the upper clamp is completely pressed on the top of the two cable connectors, the upper clamp squeezes the lower clamp to move downward, and the spring 10 is compressed at this time. The restoring force of the spring 10 is used to clamp and fix the connectors of the two cables between the upper clamp and the lower clamp. By setting the lower convex strip 12, the friction between the cable connector and the lower clamp 11 is increased, and the stability is enhanced.

[0022] In order to achieve better effect, the upper clamping member includes a vertical column 13 fixedly arranged on the inner wall of the top cover 2, and the vertical column 13 is arranged corresponding to the bottom plate 9, and the lower end of the vertical column 13 is fixedly provided with an upper clamping seat 14 corresponding to the lower clamping seat 11, and the lower surface of the upper clamping seat 14 is provided with an arc-shaped notch, and a plurality of upper convex strips 15 are fixedly arranged inside the arc-shaped notch. When in use, after the connectors of the two cables are connected above the lower clamping member, the top cover 2 is closed to the top of the shell 1, so that the upper clamping seat 14 presses the connectors of the two cables downward, and the connectors of the two cables are fixed by the mutual cooperation of the upper clamping seat 14 and the lower clamping seat 11. The friction between the cable connector and the upper clamping seat 14 is increased by the provision of the upper convex strips 15. Example

[0023] like Figure 1-10As shown, this embodiment discloses a distribution network cable connector fault diagnosis device, which includes a housing 1, a top cover 2 is provided at the upper end of the housing 1, a wall-fixing connection assembly is provided at the rear side wall of the housing 1, a buried connection assembly is provided at the lower end of the housing 1, a signal transmitter 3 and an electric control device 4 are provided at the left end of the housing 1, and the electric control device 4 is electrically connected to the signal transmitter 3, a humidity sensor 5 and a temperature sensor 6 are provided inside the housing 1, and the humidity sensor 5 and the temperature sensor 6 are both electrically connected to the electric control device 4, a clamping assembly for clamping and fixing the cable connector is provided inside the housing 1, a wire inlet hole 7 is provided on the left side wall of the housing 1, and a wire outlet hole 8 is provided on the right side wall of the housing 1. When in use, the housing 1 is sleeved on the outside of the connector position of the two cables, the cable connector at one end of one cable is inserted into the wire inlet hole 7, and the cable connector at one end of the other cable is inserted into the wire outlet hole 8, so that the connectors of the two cables are connected inside the housing 1, and the connectors of the two cables are inserted into the inside of the clamping assembly. After the two cables are connected, the connection position is clamped and fixed by a clamping assembly to further enhance the stability of the cable joint connection. The housing 1 is fixedly installed along the path of the cable, or the housing 1 is fixed to the wall by bolts and a fixed wall connection assembly, or the housing 1 is firmly buried underground together with the cable by using an underground connection assembly. When a cable joint fails, the cable joint connection generates heat or catches fire, and the humidity sensor 5 and the temperature sensor 6 inside the housing 1 deviate greatly from the preset values. At this time, under the action of the electronic control device 4 and the signal transmitter 3, the signal transmitter 3 sends a signal with a large deviation to the operator's mobile device to remind the operator to go to the site for inspection, so as to realize real-time monitoring and diagnosis of cable joint failures, greatly improving the work efficiency of the operator.

[0024] A method for using a distribution network cable connector fault diagnosis device includes placing a first connector at one end of a first cable and a second connector at one end of a second cable inside the housing 1, and placing the first connector and the second connector inside a clamping assembly, and fixing the first connector and the second connector by the clamping assembly. The first connector is inserted into the clamping assembly through the inlet hole 7, and the second connector is inserted into the clamping assembly through the outlet hole 8, and the clamping assembly automatically clamps and fixes the first connector and the second connector. The wall-fixed connection assembly is used to fix the housing 1 to the wall, and the underground connection assembly is used to increase the stability when the housing 1 is buried underground. The signal transmitting device 3 is used to send electrical signals from the humidity sensor 5 and the temperature sensor 6 to a mobile device; the humidity sensor 5 is used to monitor the humidity inside the housing 1 in real time, and the temperature sensor 6 is used to monitor the temperature inside the housing 1 in real time.

[0025] In order to achieve better effect, the clamping assembly includes an upper clamp and a lower clamp; the lower clamp includes a bottom plate 9 fixedly arranged on the inner bottom surface of the housing 1, a spring 10 is fixedly arranged on the upper end of the bottom plate 9, a lower clamping seat 11 is fixedly arranged on the upper end of the spring 10, an arc-shaped notch is opened on the upper surface of the lower clamping seat 11, and a plurality of lower convex strips 12 are fixedly arranged inside the arc-shaped notch. When in use, the connectors of the two cables are placed between the upper clamp and the lower clamp. When the upper clamp is completely pressed on the top of the two cable connectors, the upper clamp squeezes the lower clamp to move downward, and the spring 10 is compressed at this time. The restoring force of the spring 10 is used to clamp and fix the connectors of the two cables between the upper clamp and the lower clamp. By setting the lower convex strip 12, the friction between the cable connector and the lower clamp 11 is increased, and the stability is enhanced.

[0026] In order to achieve better effect, the upper clamping member includes a vertical column 13 fixedly arranged on the inner wall of the top cover 2, and the vertical column 13 is arranged corresponding to the bottom plate 9, and the lower end of the vertical column 13 is fixedly provided with an upper clamping seat 14 corresponding to the lower clamping seat 11, and the lower surface of the upper clamping seat 14 is provided with an arc-shaped notch, and a plurality of upper convex strips 15 are fixedly arranged inside the arc-shaped notch. When in use, after the connectors of the two cables are connected above the lower clamping member, the top cover 2 is closed to the top of the shell 1, so that the upper clamping seat 14 presses the connectors of the two cables downward, and the connectors of the two cables are fixed by the mutual cooperation of the upper clamping seat 14 and the lower clamping seat 11. The friction between the cable connector and the upper clamping seat 14 is increased by the provision of the upper convex strips 15.

[0027] For better effect, the wall-fixing connection assembly includes a first ear 16, a second ear 17, a third ear 18 and a fourth ear 19, and the first ear 16, the second ear 17, the third ear 18 and the fourth ear 19 are respectively fixedly connected to the four corners of the rear side wall of the housing 1, and the plate surfaces of the first ear 16, the second ear 17, the third ear 18 and the fourth ear 19 are all provided with threaded holes. When in use, bolts or screws are screwed into the threaded holes of the first ear 16, the second ear 17, the third ear 18 and the fourth ear 19 to complete the wall fixing of the housing 1, and the operation is simple and quick.

[0028] For better effect, the underground connection assembly includes a plurality of left extension rods 20 fixedly connected to the left end of the shell 1, and a plurality of right extension rods fixedly connected to the right end of the shell 1, and the left extension rods 20 and the right extension rods are both hollow structures, and the left extension rod 20 is slidably connected to the inside of the left extension rod 20, and the right extension rod is slidably connected to the inside of the right extension rod. When in use, when the shell 1 is buried underground, the left inner rod 21 is pulled out from the inside of the left extension rod 20, and the right inner rod is pulled out from the inside of the right extension rod, and after the shell 1 is buried underground, the shell 1 can grip the ground more firmly.

[0029] For better effect, the rear end of the top cover 2 is rotatably connected to the upper rear side wall of the housing 1 through a pin, and the front end of the top cover 2 is detachably connected to the upper front side wall of the housing 1 through a lock assembly 22. The model of the humidity sensor 5 is HDC3022; the model of the temperature sensor 6 is CWDZ101 wireless temperature transmitter.

[0030] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distribution network cable joint fault diagnosis device, comprising a housing, wherein a top cover is provided at the upper end of the housing, characterized in that: The rear side wall of the shell is provided with a wall-fixed connection component, the lower end of the shell is provided with an underground connection component, the left end of the shell is provided with a signal transmitting device and an electric control device, and the electric control device is electrically connected to the signal transmitting device, the interior of the shell is provided with a humidity sensor and a temperature sensor, and the humidity sensor and the temperature sensor are both electrically connected to the electric control device, the interior of the shell is provided with a clamping component for clamping and fixing the cable connector, the left side wall of the shell is provided with a wire entry hole, and the right side wall of the shell is provided with a wire outlet hole.

2. The distribution network cable joint fault diagnosis device according to claim 1, characterized in that: The fixing assembly includes an upper clamp and a lower clamp; the lower clamp includes a bottom plate fixedly arranged on the inner bottom surface of the shell, a spring is fixedly arranged on the upper end of the bottom plate, a lower clamping seat is fixedly arranged on the upper end of the spring, an arc-shaped groove is opened on the upper surface of the lower clamping seat, and a plurality of lower convex strips are fixedly arranged inside the arc-shaped groove.

3. The distribution network cable joint fault diagnosis device according to claim 2, characterized in that: The upper clamping member includes a vertical column fixedly arranged on the inner wall of the top cover, and the vertical column is arranged corresponding to the bottom plate, an upper clamping seat corresponding to the lower clamping seat is fixedly arranged at the lower end of the vertical column, an arc-shaped groove is opened on the lower surface of the upper clamping seat, and a plurality of upper convex strips are fixedly arranged inside the arc-shaped groove.

4. The distribution network cable joint fault diagnosis device according to claim 1, characterized in that: The wall-fixing connection assembly includes a first ear, a second ear, a third ear and a fourth ear, and the first ear, the second ear, the third ear and the fourth ear are respectively fixedly connected to the four corners of the rear side wall of the shell, and the plate surfaces of the first ear, the second ear, the third ear and the fourth ear are all provided with threaded holes.

5. The distribution network cable joint fault diagnosis device according to claim 1, characterized in that: The underground connection assembly includes a plurality of left extension rods fixedly connected to the left end of the shell, and a plurality of right extension rods fixedly connected to the right end of the shell, and the left extension rods and the right extension rods are both cavity structures, the left extension rod is slidably connected to the inside of the left extension rod with a left inner rod, and the right extension rod is slidably connected to the inside of the right extension rod with a right inner rod.

6. The distribution network cable joint fault diagnosis device according to claim 1, characterized in that: The rear end of the top cover is rotatably connected to the upper rear side wall of the shell body through a pin shaft, and the front end of the top cover is detachably connected to the upper front side wall of the shell body through a locking assembly.

7. The distribution network cable joint fault diagnosis device according to claim 1, characterized in that: The model of the humidity sensor is HDC3022; the model of the temperature sensor is CWDZ101 wireless temperature transmitter.

8. The method for using the distribution network cable joint fault diagnosis device according to any one of claims 1 to 7, characterized in that: The method comprises placing a first connector at one end of a first cable and a second connector at one end of a second cable inside the housing, placing the first connector and the second connector inside a fixing component, and fixing the first connector and the second connector by the fixing component.

9. The method for using the distribution network cable joint fault diagnosis device according to claim 8, characterized in that: The first connector is inserted into the interior of the fixing component through the wire inlet hole, and the second connector is inserted into the interior of the fixing component through the wire outlet hole. The fixing component automatically clamps and fixes the first connector and the second connector.

10. The method for using the distribution network cable joint fault diagnosis device according to claim 9, characterized in that: The wall-fixed connection component is used to fix the shell to the wall, the underground connection component is used to increase the stability when the shell is buried underground, and the signal transmitting device is used to send the electrical signals of the humidity sensor and the temperature sensor to the mobile device; the humidity sensor is used to monitor the humidity inside the shell in real time, and the temperature sensor is used to monitor the temperature inside the shell in real time.

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