Cable fault simulation device

Abstract

The utility model belongs to the technical field of cable fault simulation, and discloses a cable fault simulation device, which comprises a bottom plate, two sides of the bottom plate are fixedly connected with fixed plates, a support plate is fixedly connected between the two fixed plates, a sliding pipe is slidably connected between the two fixed plates, the sliding pipe penetrates through the fixed plates and is provided with a square through groove, and the square through groove is communicated with the support plate. A cable is fixedly connected into the sliding pipe, a fault point is arranged on the cable, and a baffle is arranged between the two fixing plates. According to the utility model, the sliding pipe is arranged, the sliding pipe and the cable are covered by sandy soil, the two ends of the cable are connected with a test circuit, the situation of a buried cable fault is simulated, maintenance personnel are trained to determine a buried cable fault point through a sound measurement method, and during use, the fault point can be moved and variables can be increased by pulling the sliding pipe and moving the cable, so that continuous training is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable fault simulation, and particularly relates to a cable fault simulation device. Background Technique

[0002] The most direct cause of cable faults is the reduction of insulation and breakdown. There are many factors leading to the reduction of insulation. Cable faults can be summarized into three categories: grounding, short circuit, and open circuit. For the methods of finding faults, they are divided into zero potential method, bridge method, capacitance current measurement method, and sound measurement method. The sound measurement method is mainly for finding buried cable fault points.

[0003] Since buried cables are buried deep underground, inspection personnel cannot directly observe cable faults through the appearance. They need to judge by sound and experience. For new inspection personnel, they lack work experience and cannot often come into contact with buried cable faults to gain experience. Therefore, a cable fault simulation device is needed to simulate buried cable faults for training. Content of the Utility Model

[0004] In order to solve the above problems, the purpose of the utility model is to provide a cable fault simulation device.

[0005] To achieve the above purpose, the utility model provides a cable fault simulation device, including a bottom plate. Fixed connection plates are fixedly connected to both sides of the bottom plate. A support plate is fixedly connected between the two fixed connection plates. A sliding tube is slidably connected between the two fixed connection plates. The sliding tube penetrates through the fixed connection plates. A square through groove is provided on the sliding tube. A cable is fixedly connected inside the sliding tube. A fault point is provided on the cable. A baffle is provided between the two fixed connection plates.

[0006] Further, two round rods are rotatably connected between the two fixed connection plates. The two round rods penetrate through the fixed connection plates. The outer side of the round rod is fixedly connected to the baffle. Two cross plates are fixedly connected to the outer side of one of the fixed connection plates. Mounting plates are fixedly connected to one side of each cross plate. A servo motor is fixedly connected to one side of the mounting plate. The main shaft of the servo motor is fixedly connected to the round rod.

[0007] Further, a square through slot is provided on the bottom plate. Two electric push rods are fixedly connected to the lower surface of the bottom plate. One end of the telescopic rod of the electric push rod is fixedly connected to a support plate.

[0008] Further, the shape of the fixed connection plate is an isosceles trapezoid, and the length of the upper bottom surface of the fixed connection plate is greater than the length of the lower bottom surface.

[0009] Further, two support seats are fixedly connected to the lower surface of the bottom plate, and the two support seats are close to both sides of the lower surface of the bottom plate.

[0010] Further, the sliding tube and the cable are located at the lower ends of the two fixing plates, close to the bottom plate.

[0011] The cable fault simulation device proposed by the present utility model can bring the following beneficial effects:

[0012] First, by setting the sliding tube, sand is filled between the two baffles and the fixing plates, covering the sliding tube and the cable. Both ends of the cable are connected to the test circuit to simulate the situation of buried cable faults. Maintenance personnel can find the discharge sound through the pickup to determine the fault point, so as to train the maintenance personnel to determine the buried cable fault point by the sound measurement method, increasing the work experience of the maintenance personnel. When in use, the sliding tube can be pulled to move the cable, making the fault point move, increasing variables and facilitating continuous training.

[0013] Second, by setting the baffles, the sand is turned over to increase the fluidity of the sand. Then, the servo motor is turned on to drive the two baffles to slowly rotate, and the two baffles approach each other, resulting in an increase in the depth of the sand between the two baffles, so as to simulate different buried depths of the cable and increase the training flexibility of the maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0015] In the drawings:

[0016] Figure 1 is a schematic structural diagram of the present utility model.

[0017] Figure 2 is a schematic structural diagram of the support plate.

[0018] Figure 3 is a schematic structural diagram of the sliding tube.

[0019] Figure 4 is a schematic structural diagram of the bottom plate, the fixing plate and the baffle.

[0020] Figure 5 is a schematic diagram of the usage state of the baffle.

[0021] In the figure: 1, bottom plate; 2, fixing plate; 3, support plate; 4, sliding tube; 5, baffle; 6, round rod; 7, cross plate; 8, mounting plate; 9, servo motor; 10, electric push rod; 11, support plate; 12, support seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to more clearly illustrate the overall concept of the present utility model, the following is a detailed description by way of example in conjunction with the drawings of the specification.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0025] In the present utility model, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one solution", "some solutions", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more solutions or examples.

[0027] Such as Figures 1 to 5As shown in the figure, an embodiment of the utility model provides a cable fault simulation device, which includes a bottom plate 1. Fixed connection plates 2 are fixedly connected to both sides of the bottom plate 1. A support plate 3 is fixedly connected between the two fixed connection plates 2. A sliding tube 4 is slidably connected between the two fixed connection plates 2. The sliding tube 4 penetrates through the fixed connection plates 2. A square through groove is provided on the sliding tube 4. A cable is fixedly connected inside the sliding tube 4. A fault point is provided on the cable. A baffle 5 is provided between the two fixed connection plates 2. A space similar to a container is formed among the two baffles 5, the bottom plate 1 at the bottom, and the two fixed connection plates 2. Sand is filled between the two baffles 5 and the fixed connection plates 2. The sand covers the sliding tube 4 and the cable. Both ends of the cable are connected to a test circuit. Due to cable breakage, the cable core contacts the sand, and the faulty cable core discharges. The faulty cable core discharges to the insulating layer at the fault point, generating a "zi, zi" spark discharge sound, thereby simulating the situation of buried cable faults. Maintenance personnel can use a pickup to find the discharge sound and then determine the fault point, so as to train maintenance personnel to determine the buried cable fault point by the sound measurement method. When in use, the sliding tube 4 can be pulled to move the cable and make the fault point move, increasing variables and facilitating continuous training.

[0028] Specifically, two round rods 6 are rotatably connected between the two fixed connection plates 2. The two round rods 6 penetrate through the fixed connection plates 2. The outer sides of the round rods 6 are fixedly connected to the baffle 5. Two cross plates 7 are fixedly connected to the outer side of one of the fixed connection plates 2. Installation plates 8 are fixedly connected to one side of each cross plate 7. A servo motor 9 is fixedly connected to one side of the installation plate 8. The main shaft of the servo motor 9 is fixedly connected to the round rod 6. During the training process, the staff turns the sand to increase the fluidity of the sand. Then, the servo motor 9 is turned on to drive the two baffles 5 to slowly rotate. The two baffles 5 approach each other, and the distance between the two baffles 5 decreases. As Figure 5 shown in the figure, while the volume of the sand remains basically unchanged, the depth of the sand between the two baffles 5 increases accordingly, thereby simulating different buried depths of the cable and increasing the training flexibility of maintenance personnel.

[0029] Specifically, a square through groove is provided on the bottom plate 1. Two electric push rods 10 are fixedly connected to the lower surface of the bottom plate 1. One end of the telescopic rod of the electric push rod 10 is fixedly connected to a support plate 11. When the device is in use, the support plate 11 blocks the square through groove to prevent the sand from flowing out, facilitating the simulation training of maintenance personnel. When it is necessary to clean the sand, the electric push rod 10 on the bottom plate 1 pushes the support plate 11 away from the square through groove, and the sand flows out through the square through groove, making it more convenient to clean the sand.

[0030] Specifically, the shape of the fixed connection plate 2 is trapezoidal. Two electric push rods 10 are fixedly connected to the lower surface of the bottom plate 1. One end of the telescopic rod of the electric push rod 10 is fixedly connected to a support plate 11. The shape of the fixed connection plate 2 is trapezoidal, with the long side on the top and the short side on the bottom. Initially, the two baffles 5 are inclined outwards and rest on the support plate 3, giving the baffle 5 a certain amount of movement space.

[0031] Specifically, two support seats 12 are fixedly connected to the lower surface of the bottom plate 1. The two support seats 12 are close to both sides of the lower surface of the bottom plate 1. The support seats 12 lift the device, and it is convenient to place a container under the bottom plate 1 to catch the flowing sand.

[0032] Specifically, the sliding tube 4 and the cable are located at the lower ends of the two fixing plates 2, close to the bottom plate 1. The sliding tube 4 and the cable are located at the lower ends of the fixing plates 2. A small amount of sand can cover the sliding tube 4 and the cable, making it more convenient to use.

[0033] Working principle: Sand is filled between the two baffles 5 and the fixing plates 2, covering the sliding tube 4 and the cable. Both ends of the cable are connected to the test circuit. Due to cable damage, the cable core contacts the sand, and the faulty core wire of the cable discharges. At the faulty point, the cable core discharges to the insulating layer, generating a "zi, zi" spark discharge sound, thus simulating the situation of buried cable faults. Maintenance personnel can search for the discharge sound through the pickup to determine the fault point. By pulling the sliding tube 4 to move the cable, the fault point can be moved to increase variables. At the same time, during the training process, the sand is turned over to increase the fluidity of the sand. Then, the servo motor 9 is turned on to drive the two baffles 5 to rotate slowly. The two baffles 5 approach each other, and the distance between the two baffles 5 decreases, resulting in an increase in the depth of the sand between the two baffles 5, thereby simulating different buried depths of the cable.

[0034] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

[0035] The above description is only for the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A cable fault simulation device, characterized in that, It includes a bottom plate (1), both sides of the bottom plate (1) are fixedly connected with fixing plates (2), a support plate (3) is fixedly connected between the two fixing plates (2), a sliding tube (4) is slidably connected between the two fixing plates (2), the sliding tube (4) penetrates through the fixing plates (2), a square through groove is provided on the sliding tube (4), a cable is fixedly connected inside the sliding tube (4), a fault point is provided on the cable, and a baffle (5) is provided between the two fixing plates (2).

2. The cable fault simulation device according to claim 1, wherein Two round rods (6) are rotatably connected between the two fixing plates (2), the two round rods (6) penetrate through the fixing plates (2), the outer side of the round rod (6) is fixedly connected with the baffle (5), two cross plates (7) are fixedly connected to the outer side of one of the fixing plates (2), mounting plates (8) are fixedly connected to one side of the cross plates (7), a servo motor (9) is fixedly connected to one side of the mounting plate (8), and the main shaft of the servo motor (9) is fixedly connected with the round rod (6).

3. The cable fault simulation device according to claim 1, characterized in that, A square through groove is provided on the bottom plate (1), and two electric push rods (10) are fixedly connected to the lower surface of the bottom plate (1), and one end of the telescopic rod of the electric push rod (10) is fixedly connected with a support plate (11).

4. A cable fault simulation device according to claim 3, characterized in that The shape of the fixing plate (2) is an isosceles trapezoid, and the length of the upper bottom surface of the fixing plate (2) is greater than the length of the lower bottom surface.

5. The cable fault simulation device according to claim 4, characterized in that, Two support seats (12) are fixedly connected to the lower surface of the bottom plate (1), and the two support seats (12) are close to both sides of the lower surface of the bottom plate (1).

6. The cable fault simulation device according to claim 1, wherein, The sliding tube (4) and the cable are located at the lower ends of the two fixing plates (2), close to the position of the bottom plate (1).

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