Electric meter box internal fault detection device

Abstract

The invention discloses an electric meter box internal fault detection device, and relates to the technical field of electric meter box detection, the electric meter box internal fault detection device comprises a box body, the bottom of the inner wall of the box body is fixedly provided with a protection box, the protection box is internally provided with a storage cylinder in a sliding and penetrating manner, the surface of the storage cylinder is provided with a placement groove, and the placement groove is provided with a voltage measuring pen. The system further comprises an electricity measuring device. Wherein the electricity measuring device comprises a rotating rod, two rectangular plates, a limiting frame, a cylindrical rod, a control mechanism, a Z-shaped sheet, a current-conducting plate, a contact plate and a warning lamp, the rotating rod is rotatably installed on the surface of the storage cylinder, the two rectangular plates are fixedly installed on the circumferential surface of the rotating rod, when the voltage measuring pen is taken out, the current-conducting plate is started at the same time, and the current-conducting plate is started at the same time; whether electric leakage danger exists in the box body or not is detected for an operator, and the fault detection efficiency and safety can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of meter box detection, in particular to an internal fault detection device for an meter box. Background Art

[0002] The internal fault detection device of the meter box is a system used to monitor and diagnose faults of electrical equipment in the meter box. It usually integrates a variety of sensors, control modules and alarm devices to ensure the safe operation of the power system, detect electrical faults in time and provide alarms and protection measures.

[0003] The patent with the patent announcement number CN213023316U relates to an internal fault detection device for an electric meter box. The internal fault detection device for an electric meter box includes: a detection block, an electric test pen, a limit mechanism and a horizontal detection mechanism. A placement slot is provided in the detection block, and the electric test pen is provided in the placement slot. The limit mechanism includes a limit block and a spring 1. The limit block is fused to the inner wall of the placement slot through the spring 1. The electric test pen is installed on the limit block through screws. The horizontal detection mechanism includes a detection block, an indicator light and a battery. A concave placement slot is provided on one side of the detection block. The detection block is fused to the inner wall of the concave placement slot through the spring 2. The indicator light and the battery are both provided on the detection block. An electrode sheet 1 is installed on one side of the detection block, and an electrode sheet 2 is installed on the inner wall of the concave placement slot. The electrode sheet 2 corresponds to the electrode sheet 1. The indicator light is connected to the electrode sheet 1 and the battery through wires. The internal fault detection device for an electric meter box provided by the patent has the advantages of good protection and convenient detection.

[0004] The above patent has the advantage of conveniently detecting internal faults of the meter box. By setting electrode sheet one and electrode sheet two, the flatness of the inner wall of the meter box can be quickly detected. When the inner wall of the meter box is dented, the indicator light at the corresponding position will automatically light up to remind the operator of the location of the fault, thereby facilitating the rapid positioning and repair of the problem of the meter box. However, when performing fault inspection, the operator needs to use an electric tester to inspect the inner wall of the meter box to ensure that no leakage occurs inside the meter box. However, when the operator is not aware of the leakage before taking the electric tester, there is a risk of electric shock, which affects the safety of fault detection. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an internal fault detection device for an electric meter box, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an internal fault detection device for an electric meter box, comprising a box body, a protection box is fixedly installed on the bottom of the inner wall of the box body, a storage tube is slidably penetrated inside the protection box, a placement groove is opened on the surface of the storage tube, a voltage measuring pen is arranged on the placement groove, and also includes an electrical measuring device; wherein, the electrical measuring device includes a rotating rod, two rectangular plates, a limit frame, a cylindrical rod, a control mechanism, a Z-shaped sheet, a conductive plate, a contact plate and a warning light, the rotating rod is pulled to move in a direction away from the protection box, and the movement of the rotating rod drives the rectangular plate to move in a direction away from the protection box, the rotating rod is rotatably installed on the surface of the storage tube, the two rectangular plates are fixedly installed on the circumferential surface of the rotating rod, the limit frame is fixedly installed on a side of the protection box close to the rotating rod, and the cylindrical rod is fixed Installed on the circumferential surface of the storage tube, the cylindrical rod slides through the inner and outer walls of the protection box, the control mechanism is arranged on the top of the protection box, the control mechanism includes a detection module and a control module, one end of the Z-shaped piece is fixedly installed on the detection module of the control mechanism, the conductive plate is slidably installed on the inner wall of the control mechanism, the conductive plate is fixedly connected to the other end of the Z-shaped piece, the contact plate is fixedly installed on the side of the conductive plate close to the cylindrical rod, the warning light is fixedly installed on the control module of the control mechanism, the Z-shaped piece itself is elastic, the conductive plate stretches the Z-shaped piece during movement, the Z-shaped piece is deformed by the stretching, and the Z-shaped piece itself is conductive, wherein an auxiliary device for pushing the cylindrical rod is arranged in the protection box, and a protective device for controlling the moving speed of the cylindrical rod is arranged on the auxiliary device.

[0007] According to the above technical solution, the rectangular plate is symmetrically distributed with the center point of the rotating rod as the vertical axis, and a curved surface one is provided on a side of the rectangular plate away from the rotating rod, and the curved surface one contacts the inner wall of the limit frame. The curved surface one of the rectangular plate rotates and generates friction with the inner wall of the limit frame. When the rectangular plate rotates to the specified position, the limit imposed on the rectangular plate by the limit frame is released, and a rectangular groove is provided on a side of the limit frame away from the protective box.

[0008] According to the above technical solution, a No. 1 spiral spring is arranged between the rotating rod and the storage tube to control the rotation of the rotating rod. The rotating rod stretches the No. 1 spiral spring during rotation, and the No. 1 spiral spring is deformed due to the stretching. A sliding groove is opened on the inner wall of the protective box close to the cylindrical rod.

[0009] According to the above technical scheme, it also includes an auxiliary device and a protective device; the auxiliary device includes a carrying frame, a long round rod, a pushing plate, a No. 1 spring, a connecting rod, a door-shaped handle, a block and a rubber plate. The pushing plate stretches the No. 1 spring during movement, and the No. 1 spring is deformed by the stretching. The carrying frame is fixedly passed through the inner and outer walls of the protection box, the long round rod is fixedly installed on the inner wall of the carrying frame, the pushing plate is slidably installed on the circumferential surface of the long round rod, the No. 1 spring is arranged between the pushing plate and the carrying frame, the connecting rod is fixedly installed on the bottom of the pushing plate, the door-shaped handle slides through the top of the carrying frame, the block is fixedly installed on the bottom of the door-shaped handle, the rubber plate rotates and passes through the inner and outer walls of the door-shaped handle, and a groove is provided on a side of the pushing plate close to the cylindrical rod, the groove is in contact with the circumferential surface of the cylindrical rod, and the cylindrical rod contacts the groove during movement, so that the movement of the cylindrical rod drives the pushing plate to move in the direction of the door-shaped handle.

[0010] According to the above technical solution, the side of the connecting rod away from the pushing plate contacts the inner wall of the slide groove. When the connecting rod moves in the slide groove, the protection box provides support for the connecting rod through the slide groove. A card slot is provided on the top of the pushing plate, and the size of the card block is adapted to the card slot.

[0011] According to the above technical solution, a second arc surface is provided at the bottom of the card block, and the second arc surface of the card block contacts the inner wall of the card slot during movement, so that the card block applies a limit to the push plate. A second spiral spring is arranged between the rubber plate and the door-shaped handle, and a side of the rubber plate close to the push plate contacts the top of the mounting frame, and a corrugated groove is provided on a side of the rubber plate close to the push plate.

[0012] According to the above technical scheme, the protective device includes a hollow plate, a T-shaped rod, a No. 2 spring, a C-shaped frame, an elastic sheet, a blocking block and a plurality of trapezoidal plates. The pushing plate contacts the T-shaped rod during movement, so that the pushing plate moves and drives the T-shaped rod to move toward the direction of the hollow plate. The hollow plate is fixedly installed at the bottom of the mounting frame, and the T-shaped rod slides through the inner and outer walls of the hollow plate. The No. 2 spring is arranged between the T-shaped rod and the hollow plate, and the C-shaped frame is fixedly installed on a side of the T-shaped rod close to the hollow plate. The elastic sheet is rotatably installed on the inner wall of the C-shaped frame, and the blocking block is fixedly installed on the inner wall of the C-shaped frame. A plurality of the trapezoidal plates are fixedly installed on the inner wall of the hollow plate, and a No. 3 volute spring is arranged between the elastic sheet and the C-shaped frame. The elastic sheet stretches the No. 3 volute spring during rotation, and the No. 3 volute spring is deformed due to the stretching.

[0013] According to the above technical solution, the shape of the elastic sheet is set to be an arc, and the blocking block contacts the plane of the elastic sheet. Since the elastic sheet in the initial position cannot rotate toward the blocking block, the elastic sheet continues to move and bends.

[0014] The present invention provides an internal fault detection device for an electric meter box, which has the following beneficial effects: (1) In the internal fault detection device of the electric meter box, after the rectangular plate is rotated to the specified position, the limit imposed on the rectangular plate by the limit frame is released. By storing the voltage measuring pen in the protection box, the voltage measuring pen is effectively protected, ensuring that the voltage measuring pen is in good condition when in use, and improving the standardization of operation. At the same time, the detection module will immediately start the warning light after sensing the current. When the voltage measuring pen is taken out, the conductive plate is also activated to detect whether there is a risk of leakage inside the box for the operator, which helps to improve the efficiency and safety of fault detection.

[0015] (2) In the internal fault detection device of the electric meter box, when the connecting rod moves, the protection box provides support for the connecting rod. The support provided by the protection box ensures that the push plate can smoothly push the cylindrical rod to move, thereby improving the speed of taking the voltage measuring pen and the overall efficiency of fault detection. The card block contacts the inner wall of the card slot, so that the card block applies a limit to the push plate. Through standardized operation, the push plate can be limited quickly and accurately, which is convenient for the operator to choose to enable or disable the push plate according to actual needs, effectively improving the flexibility of detection.

[0016] (3) In the internal fault detection device of the electric meter box, the elastic sheet increases the resistance encountered by the push plate during its movement. The elastic sheet contacts multiple trapezoidal plates to effectively control the speed at which the push plate pushes the cylindrical rod, avoiding accidental collision caused by pushing too fast, thereby improving the stability of the detection. At the same time, the deformed No. 3 scroll spring restores and drives the elastic sheet to reset. The elastic sheet collides with the blocking block during the reset process to generate vibration. The vibration is generated by multiple collisions between the elastic sheet and the blocking block, which effectively prevents the T-shaped rod from getting stuck during movement, thereby improving the smoothness of the T-shaped rod during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the protection box of the present invention; Figure 3 This is a schematic diagram of the internal structure of the protection box of the present invention; Figure 4 This is a schematic diagram of the structure of the electrical measuring device of the present invention; Figure 5 It is a schematic diagram of the position structure of the connecting rod of the present invention; Figure 6 It is a schematic diagram of the internal structure of the auxiliary device of the present invention; Figure 7 It is a schematic diagram of the internal structure of the protective device of the present invention.

[0018] In the figure: 1. box body; 2. protection box; 3. storage tube; 4. voltage measuring pen; 5. rotating rod; 6. rectangular plate; 7. limit frame; 8. cylindrical rod; 9. control mechanism; 10. Z-shaped sheet; 11. conductive plate; 12. contact plate; 13. warning light; 141. carrying frame; 142. long round rod; 143. push plate; 144. No. 1 spring; 145. connecting rod; 146. door-shaped handle; 147. block; 148. rubber plate; 151. hollow plate; 152. T-shaped rod; 153. No. 2 spring; 154. C-shaped frame; 155. elastic sheet; 156. blocking block; 157. trapezoidal plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 An embodiment of the present invention is: an internal fault detection device for an electric meter box, comprising a box body 1, a protection box 2 is fixedly installed at the bottom of the inner wall of the box body 1, a storage tube 3 is slidably penetrated inside the protection box 2, a placement groove is opened on the surface of the storage tube 3, a voltage measuring pen 4 is arranged on the placement groove, and an electric measuring device is also included; wherein the electric measuring device comprises a rotating rod 5, two rectangular plates 6, a limit frame 7, a cylindrical rod 8, a control mechanism 9, a Z-shaped sheet 10, a conductive plate 11, a contact plate 12 and a warning light 13, the rotating rod 5 is rotatably installed on the surface of the storage tube 3, the two rectangular plates 6 are fixedly installed on the circumferential surface of the rotating rod 5, the limit frame 7 is fixedly installed on a side of the protection box 2 close to the rotating rod 5, the cylindrical rod 8 is fixedly installed on the circumferential surface of the storage tube 3, the cylindrical rod 8 slides through the inner and outer walls of the protection box 2, and the control mechanism 9 is arranged on the protection box 2. At the top of the box 2, the control mechanism 9 includes a detection module and a control module, one end of the Z-shaped piece 10 is fixedly mounted on the detection module of the control mechanism 9, the conductive plate 11 is slidably mounted on the inner wall of the control mechanism 9, the conductive plate 11 is fixedly connected to the other end of the Z-shaped piece 10, the contact plate 12 is fixedly mounted on the side of the conductive plate 11 close to the cylindrical rod 8, the warning light 13 is fixedly mounted on the control module of the control mechanism 9, the Z-shaped piece 10 itself is elastic, and the Z-shaped piece 10 itself is conductive, wherein an auxiliary device for pushing the cylindrical rod 8 is provided in the protective box 2, and a protective device for controlling the moving speed of the cylindrical rod 8 is provided on the auxiliary device, and the voltage measuring pen 4 can be effectively protected by storing the voltage measuring pen 4 in the protective box 2 to ensure that the voltage measuring pen 4 is in good condition when in use.

[0021] The rectangular plate 6 is symmetrically distributed with the center point of the rotating rod 5 as the vertical axis. The side of the rectangular plate 6 away from the rotating rod 5 is provided with an arc surface 1, and the arc surface 1 contacts the inner wall of the limit frame 7. The side of the limit frame 7 away from the protection box 2 is provided with a rectangular groove. When the voltage measuring pen 4 is taken out, the conductive plate 11 is activated together, so that the operator can detect whether there is a risk of leakage inside the box 1, which helps to improve the efficiency and safety of fault detection.

[0022] A No. 1 volute spring is arranged between the rotating rod 5 and the storage tube 3, and a slide groove is opened on the inner wall of the protection box 2 close to the cylindrical rod 8. By setting the No. 1 volute spring, the operator can pull the storage tube 3 to move only after standardized operation, which effectively improves the standardization of the operation.

[0023] When the present embodiment is working, the operator holds the circumferential surface of the rotating rod 5, and then controls the rotating rod 5 to rotate ninety degrees clockwise. The rotating rod 5 stretches the No. 1 spiral spring during rotation, and the No. 1 spiral spring is deformed by the stretching. At the same time, the rotating rod 5 rotates to drive the rectangular plate 6 to rotate ninety degrees clockwise. The arc surface of the rectangular plate 6 generates friction with the inner wall of the limit frame 7 during rotation. When the rectangular plate 6 rotates to the specified position, the limit imposed on the rectangular plate 6 by the limit frame 7 is released. Then the rotating rod 5 is pulled to move in the direction away from the protection box 2. The rotating rod 5 moves to drive the rectangular plate 6 to move in the direction away from the protection box 2. The rectangular plate 6 passes through the rectangular groove during movement. At the same time, the rotating rod 5 moves to drive the storage tube 3 to move in the direction away from the protection box 2. The storage tube 3 moves to drive the voltage measuring pen 4 to move in the direction away from the protection box 2. When the voltage measuring pen 4 moves to the outside of the protection box 2, the voltage measuring pen 4 is taken out for fault detection. By storing the voltage measuring pen 4 in the protection box 2, the voltage measuring pen 4 can be effectively protected to ensure that the voltage measuring pen 4 is in good condition when in use, and can also improve the standardization of operation. The movement of the storage tube 3 drives the cylindrical rod 8 to move toward the control mechanism 9. The circumferential surface of the cylindrical rod 8 contacts the top of the contact plate 12 during the movement. The cylindrical rod 8 continues to move and squeeze the contact plate 12. The contact plate 12 is squeezed and moves downward. The movement of the contact plate 12 drives the conductive plate 11 to move downward. The conductive plate 11 stretches the Z-shaped sheet 10 during the movement. The Z-shaped sheet 10 is stretched and deformed, and the bottom of the conductive plate 11 contacts the bottom of the inner wall of the box body 1 during the movement. When leakage occurs inside the box body 1, the current on the inner wall of the box body 1 flows to the Z-shaped sheet 10 through the conductive plate 11. The Z-shaped sheet 10 guides the current to the detection module of the control mechanism 9. After the detection module senses the current, the control module of the control mechanism 9 will immediately start the warning light 13 to remind the operator that leakage occurs inside the box body 1. When the voltage measuring pen 4 is taken out, the conductive plate 11 is activated together to detect whether there is a risk of leakage inside the box body 1 for the operator, which helps to improve the efficiency and safety of fault detection.

[0024] See also Figure 1-Figure 7On the basis of the above embodiment, another embodiment of the present invention further includes an auxiliary device and a protective device; the auxiliary device includes a mounting frame 141, an elongated round rod 142, a push plate 143, a No. 1 spring 144, a connecting rod 145, a door-shaped handle 146, a block 147 and a rubber plate 148, the mounting frame 141 is fixedly penetrated through the inner and outer walls of the protection box 2, the elongated round rod 142 is fixedly installed on the inner wall of the mounting frame 141, the push plate 143 is slidably installed on the circumferential surface of the elongated round rod 142, and the No. 1 spring 144 is arranged on the push plate 1 43 and the mounting frame 141, the connecting rod 145 is fixedly installed at the bottom of the pushing plate 143, the door-shaped handle 146 slides through the top of the mounting frame 141, the blocking block 147 is fixedly installed at the bottom of the door-shaped handle 146, the rubber plate 148 rotates and passes through the inner and outer walls of the door-shaped handle 146, and a groove is provided on one side of the pushing plate 143 close to the cylindrical rod 8, and the groove contacts the circumferential surface of the cylindrical rod 8. The cylindrical rod 8 is pushed to move by the pushing plate 143, which effectively improves the speed of taking the voltage measuring pen 4 and the overall efficiency of fault detection.

[0025] The side of the connecting rod 145 away from the pushing plate 143 contacts the inner wall of the slide groove. A card slot is provided on the top of the pushing plate 143. The size of the card block 147 is adapted to the card slot. The support provided by the protective box 2 ensures that the pushing plate 143 can smoothly push the cylindrical rod 8 to move.

[0026] A second arc surface is provided at the bottom of the block 147, and a second scroll spring is arranged between the rubber plate 148 and the door-shaped handle 146. The side of the rubber plate 148 close to the push plate 143 is in contact with the top of the mounting frame 141, and a corrugated groove is provided on the side of the rubber plate 148 close to the push plate 143. Through standardized operation, the push plate 143 can be limited quickly and accurately, which is convenient for the operator to choose to enable and close the push plate 143 according to actual needs.

[0027] The protective device includes a hollow plate 151, a T-shaped rod 152, a second spring 153, a C-shaped frame 154, an elastic sheet 155, a blocking block 156 and a plurality of trapezoidal plates 157. The hollow plate 151 is fixedly mounted on the bottom of the mounting frame 141, the T-shaped rod 152 slides through the inner and outer walls of the hollow plate 151, the second spring 153 is arranged between the T-shaped rod 152 and the hollow plate 151, the C-shaped frame 154 is fixedly mounted on a side of the T-shaped rod 152 close to the hollow plate 151, the elastic sheet 155 is rotatably mounted on the inner wall of the C-shaped frame 154, the blocking block 156 is fixedly mounted on the inner wall of the C-shaped frame 154, a plurality of trapezoidal plates 157 are fixedly mounted on the inner wall of the hollow plate 151, a third volute spring is arranged between the elastic sheet 155 and the C-shaped frame 154, and the elastic sheet 155 contacts the plurality of trapezoidal plates 157 to effectively control the speed at which the push plate 143 pushes the cylindrical rod 8 to avoid accidental collision caused by pushing too fast.

[0028] The elastic sheet 155 is in an arc shape, and the blocking block 156 contacts the plane of the elastic sheet 155 . Vibration is generated by multiple collisions between the elastic sheet 155 and the blocking block 156 , which effectively prevents the T-shaped rod 152 from getting stuck during movement.

[0029] When the embodiment is working, when the limit imposed by the limit frame 7 on the rectangular plate 6 is released, the deformed No. 1 spring 144 is restored to drive the push plate 143 to move away from the door-shaped handle 146, and the groove of the push plate 143 applies a thrust to the circumferential surface of the cylindrical rod 8 during the movement, so that the push plate 143 moves to drive the cylindrical rod 8 to move away from the door-shaped handle 146, and at the same time, the push plate 143 moves to drive the connecting rod 145 to move away from the door-shaped handle 146. When the connecting rod 145 moves in the slide groove, the protection box 2 The slide groove provides support for the connecting rod 145, so that the connecting rod 145 remains stable during movement. The support provided by the protection box 2 ensures that the pushing plate 143 can smoothly push the cylindrical rod 8 to move, thereby improving the speed of taking the voltage measuring pen 4 and the overall efficiency of fault detection. When the cylindrical rod 8 moves toward the door-shaped handle 146, the cylindrical rod 8 moves and drives the pushing plate 143 to move toward the door-shaped handle 146. The pushing plate 143 moves and drives the connecting rod 145 to move toward the door-shaped handle 146. At the same time, the pushing plate 14 3 During the movement, the No. 1 spring 144 is stretched and deformed. The push plate 143 moves to the specified position and then stops moving. When the push plate 143 is no longer needed, the door-shaped handle 146 is manually pushed downward. The movement of the door-shaped handle 146 drives the rubber plate 148 to move downward. During the movement, the rubber plate 148 is subjected to the resistance applied by the mounting frame 141, so that the rubber plate 148 rotates upward. During the rotation, the rubber plate 148 stretches the No. 2 scroll spring. The No. 2 scroll spring is stretched and deformed. The second scroll spring exerts a reaction force on the rubber plate 148, so that the corrugated groove of the rubber plate 148 fits tightly with the inner wall of the mounting frame 141. At the same time, the door-shaped handle 146 moves to drive the block 147 to move downward. The arc surface 2 of the block 147 contacts the inner wall of the groove during the movement, so that the block 147 applies a limit to the push plate 143. Through standardized operation, the push plate 143 is quickly and accurately limited, which is convenient for operators to choose to enable and close the push plate 143 according to actual needs, effectively improving the flexibility of detection; The push plate 143 contacts the T-shaped rod 152 during movement, so that the push plate 143 moves and drives the T-shaped rod 152 to move toward the hollow plate 151. The T-shaped rod 152 squeezes the No. 2 spring 153 during movement. The No. 2 spring 153 is squeezed and deformed. The deformed No. 2 spring 153 exerts a reaction force on the T-shaped rod 152, so that the T-shaped rod 152 exerts resistance on the moving push plate 143. At the same time, the movement of the T-shaped rod 152 drives the C-shaped frame 154 to move away from the No. 2 spring 153. The movement of the C-shaped frame 154 drives the elastic sheet 155 to move away from the No. 2 spring The elastic sheet 155 moves in the direction of the spring 153, and the inner concave surface of the elastic sheet 155 contacts with the multiple trapezoidal plates 157 during the movement. Each time the contact occurs, the trapezoidal plates 157 hinder the elastic sheet 155, causing the elastic sheet 155 to continue to move and bend. The bent elastic sheet 155 increases the resistance encountered by the push plate 143 during the movement, so that the speed of the push plate 143 is slowed down by the additional resistance. When the elastic sheet 155 is separated from the trapezoidal plates 157, the deformed elastic sheet 155 automatically recovers. The elastic sheet 155 contacts with the multiple trapezoidal plates 157, effectively controlling the push plate 143. 3 to push the cylindrical rod 8, avoiding accidental collision caused by pushing too fast, thereby improving the stability of the detection, the second spring 153 restores and drives the T-shaped rod 152 to move away from the hollow plate 151, the movement of the T-shaped rod 152 drives the C-shaped frame 154 to move away from the hollow plate 151, the movement of the C-shaped frame 154 drives the elastic sheet 155 to move in the direction of the second spring 153, the curved surface of the elastic sheet 155 contacts the inclined surface of the trapezoidal plate 157 during the movement, and the trapezoidal plate 157 applies resistance to the moving elastic sheet 155, so that the elastic sheet 155 moves away from the blocking block 15 6, the elastic sheet 155 is separated from the blocking block 156 during the rotation, and the elastic sheet 155 stretches the No. 3 scroll spring during the rotation. The No. 3 scroll spring is deformed by the stretching. When the elastic sheet 155 is separated from the trapezoidal plate 157, the deformed No. 3 scroll spring recovers and drives the elastic sheet 155 to reset. The elastic sheet 155 collides with the blocking block 156 during the reset to generate vibration. The vibration is generated by the multiple collisions between the elastic sheet 155 and the blocking block 156, which effectively prevents the T-bar 152 from getting stuck during the movement, thereby improving the smoothness of the movement of the T-bar 152.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal fault detection device for an electric meter box, comprising a box body (1), characterized in that: A protection box (2) is fixedly mounted on the bottom of the inner wall of the box body (1); a storage tube (3) is slidably penetrated inside the protection box (2); a placement groove is provided on the surface of the storage tube (3); a voltage measuring pen (4) is provided on the placement groove; and an electrical measuring device is also included; The electrical measuring device comprises a rotating rod (5), two rectangular plates (6), a limit frame (7), a cylindrical rod (8), a control mechanism (9), a Z-shaped sheet (10), a conductive plate (11), a contact plate (12) and a warning light (13); the rotating rod (5) is rotatably mounted on the surface of the storage tube (3); the two rectangular plates (6) are fixedly mounted on the circumferential surface of the rotating rod (5); the limit frame (7) is fixedly mounted on a side of the protection box (2) close to the rotating rod (5); the cylindrical rod (8) is fixedly mounted on the circumferential surface of the storage tube (3); the cylindrical rod (8) slides through the inner and outer walls of the protection box (2); and the control mechanism (9) is a control mechanism for measuring the electrical measuring device. The control mechanism (9) is arranged on the top of the protection box (2), the control mechanism (9) comprises a detection module and a control module, one end of the Z-shaped sheet (10) is fixedly mounted on the detection module of the control mechanism (9), the conductive plate (11) is slidably mounted on the inner wall of the control mechanism (9), the conductive plate (11) is fixedly connected to the other end of the Z-shaped sheet (10), the contact plate (12) is fixedly mounted on a side of the conductive plate (11) close to the cylindrical rod (8), the warning light (13) is fixedly mounted on the control module of the control mechanism (9), the Z-shaped sheet (10) itself has elasticity, and the Z-shaped sheet (10) itself has conductivity; Wherein, an auxiliary device for pushing the cylindrical rod (8) is arranged in the protection box (2), and a protective device for controlling the moving speed of the cylindrical rod (8) is arranged on the auxiliary device.

2. The device for detecting internal faults of an electric meter box according to claim 1, characterized in that: The rectangular plate (6) is symmetrically distributed with the center point of the rotating rod (5) as the vertical axis; a first arc surface is provided on a side of the rectangular plate (6) away from the rotating rod (5); the first arc surface contacts the inner wall of the limit frame (7); and a rectangular groove is provided on a side of the limit frame (7) away from the protection box (2).

3. The internal fault detection device of an electric meter box according to claim 2, characterized in that: A No. 1 spiral spring is provided between the rotating rod (5) and the storage tube (3), and a sliding groove is provided on the inner wall of the protection box (2) close to the cylindrical rod (8).

4. The device for detecting internal faults of an electric meter box according to claim 3, characterized in that: The auxiliary device comprises a mounting frame (141), a long round rod (142), a push plate (143), a first spring (144), a connecting rod (145), a door-shaped handle (146), a block (147) and a rubber plate (148); the mounting frame (141) is fixedly connected to the inner and outer walls of the protection box (2); the long round rod (142) is fixedly installed on the inner wall of the mounting frame (141); the push plate (143) is slidably installed on the circumferential surface of the long round rod (142); and the first spring (144) is arranged on The connecting rod (145) is fixedly mounted on the bottom of the pushing plate (143) and the mounting frame (141). The door-shaped handle (146) slides through the top of the mounting frame (141). The clamping block (147) is fixedly mounted on the bottom of the door-shaped handle (146). The rubber plate (148) rotates and penetrates the inner and outer walls of the door-shaped handle (146). A groove is provided on one side of the pushing plate (143) close to the cylindrical rod (8), and the groove contacts the circumferential surface of the cylindrical rod (8).

5. The internal fault detection device of an electric meter box according to claim 4, characterized in that: A side of the connecting rod (145) away from the pushing plate (143) contacts the inner wall of the slide groove, a clamping groove is provided on the top of the pushing plate (143), and the size of the clamping block (147) is adapted to the clamping groove.

6. The device for detecting internal faults of an electric meter box according to claim 5, characterized in that: The bottom of the block (147) is provided with a second arc surface, a second scroll spring is provided between the rubber plate (148) and the door-shaped handle (146), a side of the rubber plate (148) close to the push plate (143) contacts the top of the mounting frame (141), and a corrugated groove is provided on a side of the rubber plate (148) close to the push plate (143).

7. The device for detecting internal faults of an electric meter box according to claim 6, characterized in that: The protective device comprises a hollow plate (151), a T-shaped rod (152), a second spring (153), a C-shaped frame (154), an elastic sheet (155), a blocking block (156) and a plurality of trapezoidal plates (157); the hollow plate (151) is fixedly mounted on the bottom of the mounting frame (141); the T-shaped rod (152) slides through the inner and outer walls of the hollow plate (151); the second spring (153) is arranged between the T-shaped rod (152) and the hollow plate (141); 51), the C-shaped frame (154) is fixedly mounted on a side of the T-shaped rod (152) close to the hollow plate (151), the elastic sheet (155) is rotatably mounted on the inner wall of the C-shaped frame (154), the blocking block (156) is fixedly mounted on the inner wall of the C-shaped frame (154), a plurality of trapezoidal plates (157) are fixedly mounted on the inner wall of the hollow plate (151), and a No. 3 spiral spring is provided between the elastic sheet (155) and the C-shaped frame (154).

8. The device for detecting internal faults of an electric meter box according to claim 7, characterized in that: The shape of the elastic sheet (155) is set to be an arc, and the blocking block (156) is in contact with the plane of the elastic sheet (155).

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