Circuit current-detecting and electricity-testing device

Abstract

The invention relates to the technical field of line current and electricity detection, in particular to a line current and electricity detection device and electroscope which comprises an electroscope body, a lower clamping nozzle and an upper clamping nozzle, and the lower clamping nozzle and the upper clamping nozzle are symmetrically arranged. The limiting mechanism comprises a sliding groove and a buffer column; the control mechanism comprises a push rod, a connecting rod rotationally arranged on the end face of the push rod and a rotary disc rotationally arranged on the end face of the connecting rod. Through the electroscope, the limiting mechanism and the control mechanism, accurate electricity testing, limiting fixing and self-adaptive fixing of a binding post in a line are achieved, the electroscope compresses a buffer column step by step through relative rotation of a clamping nozzle, loop conduction is achieved, an alarm is given out, movement of the electroscope is effectively fixed through the limiting mechanism, errors caused by shaking are prevented, and the reliability of the electroscope is improved. The control mechanism is further fixed, flexibility is improved by automatically switching an electricity testing gear and a current detecting gear, meanwhile, self-adaptive fixing of the surface area of the binding post is achieved, and the device adapts to various binding post shapes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of line current detection and voltage detection, and particularly relates to a line current detection and voltage detection device. BACKGROUND

[0002] When the distribution operation team pulls the knife switch (or link) of the overhead line, due to the complex on-site environment, there are often double-circuit towers, even four-circuit towers, and the on-site signboards are not clear, which may cause misoperation and pull the wrong knife switch (or link), and the situation of pulling the knife switch with load may occur. At the same time, before the grounding wire is installed on the distribution overhead line, we need to detect the voltage of the line to ensure that the line has been de-energized.

[0003] The voltage detection operation aims to confirm whether there is current on the line. Before the power-off operation, the line should be cut off the power supply, but sometimes due to errors or other reasons, there may be residual current. The voltage detection operation can ensure that the line is in a safe state and there is no potential voltage to protect the personal safety of the workers. Voltage detection can also prevent electrical equipment from being damaged due to residual current during the power-off operation. Electrical equipment usually requires maintenance and repair in a de-energized state, so voltage detection operation is a key step to confirm that the line is truly de-energized.

[0004] The current detection operation is used to confirm whether the current on the line has been completely interrupted. Even if the power supply is cut off, sometimes there may be a short circuit between the wires or other problems, causing current to still flow. The current detection operation can ensure that the line is completely de-energized, providing higher safety for subsequent maintenance and operations. If there is still current when maintenance is performed in a de-energized state, it may pose a danger to the equipment and workers. Through the current detection operation, potential dangers can be effectively eliminated to ensure that the equipment is fully protected. The current detection operation also helps to reduce the risk of fire. Maintenance in the presence of current may cause equipment to overheat and cause a fire. The current detection operation can reduce this risk and ensure that there is no current flowing in the circuit.

[0005] The line current detection and voltage detection device in the prior art may have a problem of precise contact. Due to design or structural limitations, the clamp may not contact the terminal post accurately, which may affect the accuracy of voltage detection and current detection, which may cause misjudgment and inaccurate measurement results, thereby increasing the operation risk of maintenance personnel, and there is a lack of effective mechanism to protect electrical equipment from the influence of current. If the current cannot be effectively cut off when the operation is performed in a de-energized state, it may cause potential damage to the equipment. The traditional device may have poor adaptability when contacting terminal posts of different shapes. In addition, due to structural or manufacturing deficiencies, it may vibrate during detection, reducing the stability and reliability of measurement. SUMMARY

[0006] This section is intended to introduce some aspects of one or more embodiments of the present application, which are described below. This section is not intended to limit the scope or content of the application in any way.

[0007] In view of the problems of the prior art, the present application is proposed.

[0008] To solve the above technical problems, the present application provides the following technical solutions: an electroscope, comprising an electroscope body, a lower clamp mouth arranged at an end face of the electroscope body, and an upper clamp mouth rotatably arranged at the end face of the electroscope body, the lower clamp mouth and the upper clamp mouth are symmetrically arranged; and

[0009] a limiting mechanism, comprising a sliding groove arranged at an end face of the lower clamp mouth and the upper clamp mouth, and a buffer column slidably arranged on an inner wall of the sliding groove; and

[0010] a control mechanism, comprising a push rod slidably arranged on the inner wall of the sliding groove, a connecting rod rotatably arranged at an end face of the push rod, and a rotating disc rotatably arranged at an end face of the connecting rod.

[0011] As a preferred scheme of the line current detection electroscope device, the bottom of the sliding groove is further provided with a positioning groove, the buffer column is slidably provided with a positioning plate at an outer wall of one end of the sliding groove, and the positioning plate slides along the positioning groove.

[0012] As a preferred scheme of the line current detection electroscope device, the buffer column is slidably penetrated into the inside of the positioning plate, the outer wall of the buffer column is further provided with a linkage joint, and the outer wall of the buffer column is further slidably sleeved with a floating block.

[0013] As a preferred scheme of the line current detection electroscope device, the outer wall of the floating block is provided with a clamping groove, the floating block is movably clamped with the clamping groove, a first elastic member is arranged between the other end face of the floating block and the positioning plate, and the first elastic member is sleeved on the outer wall of the buffer column.

[0014] As a preferred scheme of the line current detection electroscope device, the two side end faces of the floating block are respectively provided with a groove and a protrusion, the groove and the protrusion are mutually embedded, and one end of the push rod is provided with a push plate.

[0015] As a preferred scheme of the line current detection electroscope device, one end of the push plate is slidably arranged on the inner wall of the positioning groove, the other end of the push plate is mutually embedded with the protrusion of the floating block, and the inside of the push plate is provided with a pressure-sensitive sensor.

[0016] As a preferred scheme of the line current detection and electricity testing device, the end of the sliding slot through which the push plate slides is provided with a horizontal plate, the push plate is hinged to the connecting rod, and the push plate is slidably arranged on the outer wall of the upper clamp mouth and the lower clamp mouth respectively.

[0017] As a preferred scheme of the line current detection and electricity testing device, the inside of the rotating disc is provided with a rotating shaft, the two sides of the rotating shaft are connected to the upper clamp mouth, the end surface of the lower clamp mouth is provided with a shaft sleeve, and the rotating shaft is rotatably arranged in the shaft sleeve.

[0018] As a preferred scheme of the line current detection and electricity testing device, the outer wall of the rotating shaft is further sleeved with a worm gear, and the outer wall of the worm gear is meshingly provided with a worm.

[0019] As a preferred scheme of the line current detection and electricity testing device, one end of the worm penetrating through the outer wall of the electricity tester body is provided with a handle.

[0020] The line current detection and electricity testing device has the following beneficial effects: through the electricity tester, the limiting mechanism and the control mechanism, accurate electricity testing, limiting and fixing and self-adaptive fixing of the terminal post in the line are realized, the relative rotation of the clamp mouth of the electricity tester gradually compresses the buffer column, the return circuit is turned on and an alarm is sent, the limiting mechanism effectively fixes the movement of the electricity tester and prevents errors caused by shaking, the control mechanism further fixes, the flexibility is improved through automatic switching of the electricity testing block and the current detection block, and self-adaptive fixing of the surface area of the terminal post is realized, and various terminal post shapes are adapted. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort. Among them:

[0022] Figure 1 It is a schematic view of the line current detection and electricity testing device in the present application.

[0023] Figure 2 It is an enlarged view of the limiting mechanism in the present application.

[0024] Figure 3 It is a partial enlarged schematic view of the limiting mechanism in the present application.

[0025] Figure 4 It is a partial enlarged schematic view of the control mechanism in the present application.

[0026] Figure 5 It is a schematic view of the control mechanism in the present application. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the present application more obvious and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other manners different from those described herein, and those skilled in the art can make similar generalizations without departing from the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or selected from other embodiments.

[0030] Embodiment 1

[0031] Reference Figures 1-5 For the first embodiment of the present application, the embodiment provides a line current detection and voltage detection device, which comprises.

[0032] Specifically, a line current detection and voltage detection device comprises a voltage detector 100, which comprises a voltage detector body 101, a lower clamp mouth 102 arranged at the end surface of the voltage detector body 101, and an upper clamp mouth 103 rotatably arranged at the end surface of the voltage detector body 101, the lower clamp mouth 102 and the upper clamp mouth 103 are symmetrically arranged; and

[0033] A limiting mechanism 200 comprises a sliding groove 201 arranged at the end surface of the lower clamp mouth 102 and the upper clamp mouth 103, and a buffer column 202 slidingly arranged on the inner wall of the sliding groove 201; and

[0034] A control mechanism 300 comprises a push rod 301 slidingly arranged on the inner wall of the sliding groove 201, a connecting rod 302 rotatably arranged at the end surface of the push rod 301, and a rotating disc 303 rotatably arranged at the end surface of the connecting rod 302.

[0035] The bottom of the sliding groove 201 is further provided with a positioning groove 201a, and the outer wall of one end of the buffer column 202 is slidingly provided with a positioning plate 202a, and the positioning plate 202a slides along the positioning groove 201a.

[0036] Preferably, the buffer column 202 slidingly penetrates into the inside of the positioning plate 202a, the outer wall of the buffer column 202 is further provided with a linkage 202b, and the outer wall of the buffer column 202 is further slidingly provided with a floating block 202c.

[0037] Preferably, the floating block 202c is provided with a clamping groove 202c-1, the floating block 202c is movably clamped with the clamping groove 202c-1, and a first elastic member 202c-2 is arranged between the other end surface of the floating block 202c and the positioning plate 202a, and the first elastic member 202c-2 is sleeved on the outer wall of the buffer column 202.

[0038] Further, the upper clamp 103 and the lower clamp 102 can be relatively rotated to contact and fit the terminal post of the wire, and when the terminal post of the wire is electrified, the current is conducted to the body 101 of the tester through the clamp to realize the testing operation.

[0039] Preferably, the sliding groove 201 has five in total, the direction of the sliding groove 201 is parallel to the axis direction of the body 101 of the tester, the positioning groove 201a is parallel to the sliding groove 201, and the buffer column 202 is perpendicular to the outer wall of the positioning plate 202a and can freely slide inside the positioning plate 202a.

[0040] Preferably, the first elastic member 202c-2 is a spring, under the pushing of the spring, the floating block 202c has a tendency to move outward, after the clamp contacts the terminal post of the wire, the upper clamp 103 and the lower clamp 102 are rotated to fit, thereby pressing the buffer column 202 downward, when the buffer column 202 moves downward, the buffer column 202 and the clamping groove 202c-1 are embedded, and the floating block 202c is driven to move downward.

[0041] In summary, when the terminal post of the wire is tested, the lower clamp 102 is first contacted with the terminal post of the wire, and the buffer column 202 is contacted with the terminal post of the wire, then the upper clamp 103 is rotated to make the two clamps close to each other, at this time, the buffer columns 202 located on the two clamps close to each other, and the buffer columns 202 which are in contact with the outer walls of the two sides of the terminal post of the wire are pressed to be compressed first, the buffer column 202 is compressed and moves downward, and the buffer column 202 is driven by the linkage joint 202b to slide the clamping groove 202c-1 and the floating block 202c downward, the buffer column 202 slides downward along the positioning plate 202a, and when the floating block 202c slides downward and contacts the metal layer of the lower clamp 102, the circuit is conducted, at this time, if there is current in the terminal post of the wire, the current will be conducted to the body 101 of the tester, and the tester 101 will alarm.

[0042] At the same time, the buffer columns 202 at other positions of the upper clamp 103 and the lower clamp 102 are in contact with each other and fix the terminal post of the wire, preventing the terminal post of the wire from moving and preventing poor contact caused by shaking during measurement, the buffer columns 202 which are in contact with the terminal post of the wire play the role of detection probe, a corresponding number of detection points are selected according to the surface area of the measured object, measurement errors caused by rust corrosion or impurities are prevented, and the buffer columns 202 can be adapted to the outer shapes of various terminal posts of the wire, and the use scenarios are more extensive.

[0043] Embodiment 2

[0044] Referring to Figures 1-5 For the second embodiment of the present application, which is based on the previous embodiment, the difference is that the control mechanism 300 can control the push rod to further fix the buffer column 202, so as to prevent measurement errors caused by poor contact due to shaking when sampling and detecting current of the line terminal.

[0045] Specifically, the floating block 202c is provided with a groove 202c-3 and a protrusion 202c-4 on both sides of the end face, and the groove 202c-3 and the protrusion 202c-4 are embedded with each other. One end of the push rod 301 is provided with a push plate 301a.

[0046] Among them, one end of the push plate 301a is slidably arranged in the inner wall of the positioning groove 201a, and the other end is embedded with the protrusion 202c-4 of the floating block 202c. The push plate 301a is provided with a pressure sensitive sensor inside.

[0047] More preferably, the pressure sensitive sensor controls the electrical switch inside the electroscope body 101. When the push plate 301a pushes each positioning plate 202a to slide along the positioning groove 201a, and when each floating block 202c is tightly contacted and formed into a closed loop to start the pressure sensitive sensor.

[0048] More preferably, as the resistance received by the push plate 301a increases, the trigger threshold of the pressure sensitive sensor is reached, so that the pressure sensitive sensor is started, and the electricity checking block inside the electroscope body 101 is automatically switched to the current detection block.

[0049] Preferably, one end of the push plate 301a slidingly penetrating out of the sliding groove 201 is provided with a horizontal plate 301a-1, the push plate 301a is hingedly connected with the connecting rod 302, and the push plate 301a is slidably arranged on the outer wall of the upper clamp mouth 103 and the lower clamp mouth 102 respectively.

[0050] More preferably, the rotating disc 303 is provided with a rotating shaft 303a inside, the rotating shaft 303a is connected with the upper clamp mouth 103 on both sides, the lower clamp mouth 102 is provided with a shaft sleeve 102a on the end face, and the rotating shaft 303a is rotatably arranged in the shaft sleeve 102a.

[0051] Further, the rotating shaft 303a is further provided with a worm gear 303a-1 on the outer wall, the worm gear 303a-1 is provided with a worm shaft 303a-2 on the outer wall, and one end of the worm shaft 303a-2 penetrating out of the outer wall of the electroscope body 101 is provided with a handle 303a-3.

[0052] More preferably, the upper clamp mouth 103 and the lower clamp mouth 102 are symmetrically arranged and relatively rotatable, so that when the rotating disc 303 is rotated, the rotating shaft 303a is driven to rotate around the shaft sleeve 102a, so that the upper clamp mouth 103 and the lower clamp mouth 102 are tightly combined.

[0053] Among them, the connecting rod 302 is hinged to the push plate 301a. The push plate 301a is connected to multiple push rods 301. While the push rods 301 slide inward along the positioning groove 201a, they push the positioning plate 202a and the floating block 202c to slide along the slide groove 201 and fit together. When the groove 202c-3 and the protrusion 202c-4 are engaged, the metal parts between each floating block 202c are connected and conduction is achieved, thereby activating the pressure sensor.

[0054] Even better, the floating blocks 202c are in contact with each other and are pushed by the push plate 301a, which increases the friction. At the same time, the positioning plates 202a slide, which causes the buffer column 202 sliding inside the positioning plate 202a to be pressed against it, thereby increasing the friction between the positioning plate 202a and the buffer column 202, and realizing the simultaneous limiting of the buffer column 202 located on the outer wall of the upper clamping mouth 103 and the lower clamping mouth 102.

[0055] In summary, during use, when the current detection operation is performed after the voltage test is completed, and it is necessary to tightly fix the terminal, turn the handle 303a-3 and drive the worm gear 303a-2 to rotate, thereby causing the worm wheel 303a-1 connected to it to rotate, which in turn drives the rotating shaft 303a to rotate, thereby causing the upper clamp 103 and the lower clamp 102 to rotate further relative to each other, so that the buffer posts 202 are distributed in a cross pattern, thereby completely locking the terminal and firmly fixing it to prevent it from falling off. At the same time, the rotating shaft 303a drives the turntable 303 to rotate, causing the connecting rod 302 eccentrically set on it to rotate, pushing the push plate 301a to slide inward along the positioning wiper 201a;

[0056] Simultaneously, the positioning plate 202a and floating block 202c are pushed to slide along the groove 201 and fit together. When the groove 202c-3 and the protrusion 202c-4 are engaged, the metal parts between each floating block 202c are connected and conductive, thereby activating the pressure sensor. Each floating block 202c fits together and is squeezed against each other under the push of the push plate 301a, resulting in increased friction. This increases the friction between the positioning plate 202a and the buffer column 202, thereby limiting and fixing the buffer column 202.

[0057] Example 3

[0058] Reference Figures 1-5 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, except that the worm gear 303a-2 is driven by a motor, and the motor is controlled by a sensor. The sensor controls the rotation amplitude of the motor according to the number of contacts between the buffer post 202 and the upper and lower clamps 103, so that the larger the surface area of ​​the terminal block, the greater the fixing force.

[0059] Specifically, in the initial state, the buffer post 202 is pushed by the first elastic element 202c-2 so that it does not contact the lower clamp 102 and the upper clamp 103, thus insulating them from each other and not creating a circuit. The buffer post 202 itself is made of conductive plastic, which can make soft contact with the terminal post and prevent scratches.

[0060] When the buffer post 202 contacts the clamp, it can conduct electricity and form a circuit. At the same time, the larger the surface area of ​​the terminal itself, the greater the fixing force required. In addition, the more buffer posts 202 connected to the clamp are pressed down, and as the number of buffer posts 202 in contact with the clamp increases, the resistance of the entire circuit will decrease, thereby increasing the circuit current.

[0061] Preferably, the sensor detects the circuit current and controls the motor to rotate the worm 203a-2, so that the larger the terminal area, the greater the clamping force, and the more buffer posts 202 are clamped, the more reliable the clamping and fixing.

[0062] In summary, during use, the larger the surface area of ​​the terminals between the upper clamp 103 and the lower clamp 102, the more buffer posts 202 are pressed downwards. This causes the buffer posts 202 to interlock, increasing the friction between them. Since the buffer posts 202 are made of insulating rubber, they will not scratch the surface of the terminals. Furthermore, as the number of buffer posts 202 pressed downwards increases, the circuit size decreases, resulting in an increase in the circuit current. The motor is controlled by a sensor to rotate, thus achieving a greater clamping force for terminals with larger surface areas, adapting to various terminal shapes and application scenarios.

[0063] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0064] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0065] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A line current detection and voltage testing device, characterized in that... : An electroscope (100) includes an electroscope body (101), a lower clamp (102) disposed on the end face of the electroscope body (101), and an upper clamp (103) rotatably disposed on the end face of the electroscope body (101), wherein the lower clamp (102) and the upper clamp (103) are symmetrically arranged; and, The limiting mechanism (200) includes a groove (201) disposed on the end faces of the lower clamp (102) and the upper clamp (103) and a buffer post (202) slidably disposed on the inner wall of the groove (201); and, The control mechanism (300) includes a push rod (301) slidably disposed on the inner wall of the slide groove (201), a connecting rod (302) rotatably disposed on the end face of the push rod (301), and a turntable (303) rotatably disposed on the end face of the connecting rod (302).

2. The line current detection and voltage testing device as described in claim 1, characterized in that... The bottom of the slide groove (201) is also provided with a positioning groove (201a). The outer wall of the buffer column (202) near the slide groove (201) is provided with a positioning plate (202a), which slides along the positioning groove (201a).

3. The line current detection and voltage testing device as described in claim 2, characterized in that... The buffer column (202) slides through the interior of the positioning plate (202a), and the outer wall of the buffer column (202) is also provided with a linkage (202b), and the outer wall of the buffer column (202) is also slidably fitted with a floating block (202c).

4. The line current detection and testing device as described in claim 3, characterized in that... The outer wall of the floating block (202c) has a locking groove (202c-1), and the floating block (202c) is movably locked with the locking groove (202c-1). A first elastic element (202c-2) is provided between the other end face of the floating block (202c) and the positioning plate (202a). The first elastic element (202c-2) is sleeved on the outer wall of the buffer column (202).

5. The line current detection and testing device as described in claim 4, characterized in that... The floating block (202c) has a groove (202c-3) and a protrusion (202c-4) on both sides of its end face, the groove (202c-3) and the protrusion (202c-4) are fitted together, and the push rod (301) has a push plate (301a) at one end.

6. The line current detection and voltage testing device as described in claim 5, characterized in that... The push plate (301a) is slidably disposed on one end of the inner wall of the positioning groove (201a), and the other end is engaged with the protrusion (202c-4) of the floating block (202c). A pressure-sensitive sensor is provided inside the push plate (301a).

7. The line current detection and voltage testing device as described in claim 6, characterized in that... The push plate (301a) slides through one end of the groove (201) and is provided with a horizontal plate (301a-1). The push plate (301a) is hinged to the connecting rod (302). The push plate (301a) is slidably disposed on the outer wall of the upper clamp (103) and the lower clamp (102).

8. The line current detection and testing device as described in claim 7, characterized in that... The turntable (303) has a rotating shaft (303a) inside. The rotating shaft (303a) is connected to the upper clamp (103) on both sides. The lower clamp (102) has a bushing (102a) on its end face. The rotating shaft (303a) is rotatably mounted on the bushing (102a).

9. The line current detection and testing device as described in claim 8, characterized in that... The outer wall of the rotating shaft (303a) is also fitted with a worm gear (303a-1), and the outer wall of the worm gear (303a-1) is meshed with a worm (303a-2).

10. The line current detection and voltage testing device as described in claim 9, characterized in that... The worm gear (303a-2) has a handle (303a-3) at one end that extends through to the outer wall of the electroscope body (101).

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