CN209860419U - Insulation monitoring device for oil well power distribution cabinet - Google Patents
Insulation monitoring device for oil well power distribution cabinet Download PDFInfo
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- CN209860419U CN209860419U CN201920920113.1U CN201920920113U CN209860419U CN 209860419 U CN209860419 U CN 209860419U CN 201920920113 U CN201920920113 U CN 201920920113U CN 209860419 U CN209860419 U CN 209860419U
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- cabinet body
- oil well
- monitoring device
- voltage relay
- insulation monitoring
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Abstract
The utility model discloses an oil well switch board insulation monitoring device, including the cabinet body, sampling resistance, voltage relay, voltmeter and earth connection, the spout has been seted up to the inboard of the cabinet body, and the outside of spout installs the bracing piece to the bracing piece is connected with the inboard of the cabinet body, the surface bolt of bracing piece installs the installation piece, the internal fixed surface of the cabinet body is connected with the mount, and the middle-end of mount installs the movable block, the internal surface of mount rotates and is connected with drive gear, and drive gear is connected with the movable block. This oil well switch board insulation monitoring device treats installation piece installation completion back, when any one insulation damage relatively of power, shows the voltmeter and will show the voltage value, when reaching voltage relay threshold value, voltage relay sends alarm signal, plays the purpose of monitoring the ground insulation damage degree, and the device has clear, simple structure, the characteristics of dependable performance of physics notion.
Description
Technical Field
The utility model relates to an oil well switch board technical field specifically is an insulating monitoring device of oil well switch board.
Background
The oil well power distribution cabinet is equipment for controlling electrical elements in an oil well, in order to guarantee the use safety of the power distribution cabinet and avoid danger during working, a user often configures a monitoring device to monitor the ground insulation damage degree of the power distribution cabinet, but the existing monitoring device has certain defects;
1. in the prior art, a user determines insulation of each phase-to-ground by measuring the voltage-to-ground by using a voltmeter, if one phase-to-ground voltage is low and the other two phase-to-ground voltages are high, the factor of power supply voltage is eliminated, and the condition that the insulation of a corresponding line with the low voltage-to-ground voltage is reduced is shown, but the prior art has poor real-time performance, needs a series of operations and has certain safety risk;
2. the insulating monitoring device of current oil well switch board can't be stable installs in the inside of oil well switch board, and it can appear not hard up or the phenomenon that drops at the operating time overlength, and then has certain use defect.
Aiming at the problems, innovative design is urgently needed on the basis of the structure of the original monitoring device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil well switch board insulation monitoring device to the manual operation real-time that proposes in solving above-mentioned background art is poor, needs a series of operations, has certain safe risk, and the unable stable inside of installing at the oil well switch board, its problem that the phenomenon that can appear becoming flexible or droing at the during operation time overlength.
In order to achieve the above object, the utility model provides a following technical scheme: an insulation monitoring device of an oil well power distribution cabinet comprises a cabinet body, a sampling resistor, a voltage relay, a voltmeter and a grounding wire, wherein a sliding groove is formed in the inner side of the cabinet body, a supporting rod is arranged on the outer side of the sliding groove and is connected with the inner side of the cabinet body, an installation block is arranged on the outer surface of the supporting rod through a bolt, a fixed frame is fixedly connected to the inner surface of the cabinet body, a movable block is arranged at the middle end of the fixed frame, a transmission gear is rotatably connected to the inner surface of the fixed frame and is connected with the movable block, a pulling rope is arranged on the outer surface of the transmission gear and is connected with the inner surface of the fixed frame, a limiting block is fixedly connected to the tail end of the pulling rope, a reset spring is fixedly connected to, and the outside of sampling resistance is connected with voltage relay, the voltmeter is installed in the inside of installation piece, and the voltmeter is connected with voltage relay, the earth connection is installed in voltage relay's the outside, and the earth connection is connected with the installation piece.
Preferably, the support rod and the inner surface of the cabinet body form a slidable structure through the sliding groove, and the width of the support rod is smaller than that of the fixing frame.
Preferably, the mounting blocks are arranged on the outer surface of the supporting rod at equal intervals, the lower end faces of the mounting blocks are attached to the upper end faces of the movable blocks, and the mounting blocks are communicated with the outer surface of the cabinet body through grounding wires.
Preferably, the movable block and the inner surface of the fixed frame form a slidable structure, and the outer surface of the lower end of the movable block is in meshed connection with the transmission gear.
Preferably, the upper end surface of the limiting block is of an L-shaped structure, the limiting block and the inner surface of the fixing frame form a telescopic structure through a return spring, and the limiting block and the transmission gear form a rotatable structure through a pull rope.
Compared with the prior art, the beneficial effects of the utility model are that: the oil well power distribution cabinet insulation monitoring device;
1. after the installation of the installation block is finished, when any ground insulation of the power supply is damaged, the display voltmeter displays the voltage value, and when the threshold value of the voltage relay is reached, the voltage relay sends out an alarm signal to monitor the ground insulation damage degree;
2. be provided with mobilizable stopper, along with the user will transfer to the upper end of mount with the bracing piece of the preliminary butt joint of installation piece, the lower extreme of installation piece will contact the movable block, and then self gravity through the installation piece promotes the movable block and moves down to the cooperation stay cord drives the stopper extension spring of 2 "L" types and carries out spacing fixed to the outer end of installation piece, avoids its condition unstable or that drop to appear in the course of the work, thereby has ensured the device efficiency of monitoring to the switch board.
Drawings
FIG. 1 is a schematic diagram of the circuit connection structure of the mounting block of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic view of a sectional view of the mounting block of the present invention;
FIG. 4 is a schematic cross-sectional view of the fixing frame of the present invention;
fig. 5 is a schematic side sectional view of the return spring of the present invention.
In the figure: 1. a cabinet body; 2. a chute; 3. a support bar; 4. mounting blocks; 5. a fixed mount; 6. a movable block; 7. a transmission gear; 8. pulling a rope; 9. a limiting block; 10. a return spring; 11. sampling a resistor; 12. a voltage relay; 13. a voltmeter; 14. and a ground line.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an insulation monitoring device for an oil well power distribution cabinet comprises a cabinet body 1, a sliding groove 2, a supporting rod 3, an installation block 4, a fixed frame 5, a movable block 6, a transmission gear 7, a pull rope 8, a limiting block 9, a reset spring 10, a sampling resistor 11, a voltage relay 12, a voltmeter 13 and a grounding wire 14, wherein the sliding groove 2 is formed in the inner side of the cabinet body 1, the supporting rod 3 is installed on the outer side of the sliding groove 2, the supporting rod 3 is connected with the inner side of the cabinet body 1, the supporting rod 3 and the inner surface of the cabinet body 1 form a slidable structure through the sliding groove 2, the width of the supporting rod 3 is smaller than that of the fixed frame 5, and the supporting rod 3 can slide along the upper end of the fixed frame 5 in a position;
the outer surface of the supporting rod 3 is provided with mounting blocks 4 through bolts, the inner surface of the cabinet body 1 is fixedly connected with a fixed frame 5, the middle end of the fixed frame 5 is provided with a movable block 6, the mounting blocks 4 are arranged on the outer surface of the supporting rod 3 at equal intervals, the lower end face of each mounting block 4 is attached to the upper end face of the corresponding movable block 6, the mounting blocks 4 are communicated with the outer surface of the cabinet body 1 through grounding wires 14, the mounting blocks 4 after the bolts are mounted can move to the upper end faces of the movable blocks 6 through self gravity, and then the movable blocks 6 are pushed to move downwards along the fixed frame 5;
the inner surface of the fixed frame 5 is rotatably connected with a transmission gear 7, the transmission gear 7 is connected with the movable block 6, the outer surface of the transmission gear 7 is provided with a pull rope 8, the pull rope 8 is connected with the inner surface of the fixed frame 5, the tail end of the pull rope 8 is fixedly connected with a limiting block 9, the movable block 6 and the inner surface of the fixed frame 5 form a slidable structure, the outer surface of the lower end of the movable block 6 is in meshed connection with the transmission gear 7, and the movable block 6 which moves downwards can drive the meshed 2 transmission gears 7 to synchronously rotate along the inside of the fixed frame 5;
the internal fixed surface of mount 5 is connected with reset spring 10, and reset spring 10's outer end is connected with stopper 9, the internally mounted of installation piece 4 has sampling resistance 11, and sampling resistance 11's the outside is connected with voltage relay 12, voltmeter 13 is installed in the inside of installation piece 4, and voltmeter 13 is connected with voltage relay 12, earth connection 14 is installed in voltage relay 12's the outside, and earth connection 14 is connected with installation piece 4, stopper 9's upper end is "L" type structure, and stopper 9 constitutes scalable structure through reset spring 10 and mount 5's internal surface, and stopper 9 passes through stay cord 8 and drive gear 7 constitution rotatable structure, let pressurized pivoted drive gear 7 accessible stay cord 8, it contacts spacingly to drive the stopper 9 that is connected and remove the surface to installation piece 4.
The working principle is as follows: when the oil well power distribution cabinet insulation monitoring device is used, according to the figures 1-4, firstly, the mounting block 4 to be used is mounted on the outer side of the supporting rod 3 through a bolt, after the mounting block 4 is mounted, the supporting rod 3 can be held by hands and placed on the surface of the movable block 6 at the upper end of the fixed frame 5 along the chute 2, at the moment, the mounting block 4 can push the movable block 6 to move downwards through the self gravity, as shown in figure 4, along with the downward movement of the movable block 6, the lower end of the movable block can drive the meshed transmission gear 7 to rotate, and the pull rope 8 at the outer side of the transmission gear 7 can carry out the rolling work while rotating, and further the connected limiting block 9 is driven by the tail end of the pull rope 8 to slide inwards, as shown in figure 5, at the moment, the reset spring 10 connected with the limiting block 9 is in a stretching state, along with the downward movement of the mounting block 4, 2L, the outer side of the mounting block 4 is limited and fixed, and the assembly of the mounting block 4 is completed;
according to the figures 1 and 2, before the installation block 4 works, a user connects one end of the three-phase sampling resistor 11 with the corresponding three-phase power supply inside the cabinet body 1 respectively, and the other ends of the 3 sampling resistors 11 are short-circuited together to form a zero sequence voltage filter, and is connected with one end of a voltage relay 12, the other end of the voltage relay 12 is connected with the ground through a grounding wire 14, and both ends of the voltage relay 12 are connected with a display voltmeter 13 in parallel, when any one of the loads carried by the power supply inside the cabinet body 1 is damaged in an insulation way relative to the ground, voltage is generated between the end of the sampling resistor 11 which is short-circuited together and the ground, when exceeding the action voltage value and reaching the voltage relay 12 threshold value, the voltage relay 12 sends out alarm signal through the buzzer in the installation block 4, and prompts the user to carry out maintenance work before, thereby increasing the overall practicability.
Those not described in detail in this specification are within the skill of the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an oil well switch board insulation monitoring device, includes cabinet body (1), sampling resistance (11), voltage relay (12), voltmeter (13) and earth connection (14), its characterized in that: the cabinet is characterized in that a sliding groove (2) is formed in the inner side of the cabinet body (1), a supporting rod (3) is installed on the outer side of the sliding groove (2), the supporting rod (3) is connected with the inner side of the cabinet body (1), an installation block (4) is installed on the outer surface of the supporting rod (3) through bolts, a fixed frame (5) is fixedly connected to the inner surface of the cabinet body (1), a movable block (6) is installed at the middle end of the fixed frame (5), a transmission gear (7) is rotatably connected to the inner surface of the fixed frame (5), the transmission gear (7) is connected with the movable block (6), a pull rope (8) is installed on the outer surface of the transmission gear (7), the pull rope (8) is connected with the inner surface of the fixed frame (5), a limit block (9) is fixedly connected to the tail, and the outer end of reset spring (10) is connected with stopper (9), the internally mounted of installation piece (4) has sampling resistor (11), and sampling resistor (11)'s the outside is connected with voltage relay (12), install the inside at installation piece (4) voltmeter (13), and voltmeter (13) are connected with voltage relay (12), earth connection (14) are installed in the outside of voltage relay (12), and earth connection (14) are connected with installation piece (4).
2. The oil well power distribution cabinet insulation monitoring device of claim 1, wherein: the support rod (3) and the inner surface of the cabinet body (1) form a slidable structure through the sliding groove (2), and the width of the support rod (3) is smaller than that of the fixing frame (5).
3. The oil well power distribution cabinet insulation monitoring device of claim 1, wherein: the mounting blocks (4) are arranged on the outer surface of the supporting rod (3) at equal intervals, the lower end faces of the mounting blocks (4) are attached to the upper end faces of the movable blocks (6), and the mounting blocks (4) are communicated with the outer surface of the cabinet body (1) through the grounding wires (14).
4. The oil well power distribution cabinet insulation monitoring device of claim 1, wherein: the movable block (6) and the inner surface of the fixed frame (5) form a slidable structure, and the outer surface of the lower end of the movable block (6) is meshed with the transmission gear (7).
5. The oil well power distribution cabinet insulation monitoring device of claim 1, wherein: the upper end surface of the limiting block (9) is of an L-shaped structure, the limiting block (9) and the inner surface of the fixing frame (5) form a telescopic structure through a return spring (10), and the limiting block (9) and the transmission gear (7) form a rotatable structure through a pull rope (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920920113.1U CN209860419U (en) | 2019-06-19 | 2019-06-19 | Insulation monitoring device for oil well power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920920113.1U CN209860419U (en) | 2019-06-19 | 2019-06-19 | Insulation monitoring device for oil well power distribution cabinet |
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| Publication Number | Publication Date |
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| CN209860419U true CN209860419U (en) | 2019-12-27 |
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| CN201920920113.1U Active CN209860419U (en) | 2019-06-19 | 2019-06-19 | Insulation monitoring device for oil well power distribution cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381078A (en) * | 2020-04-30 | 2020-07-07 | 代勒智能电网技术(南京)有限公司 | Voltage sampling device of molded case circuit breaker |
-
2019
- 2019-06-19 CN CN201920920113.1U patent/CN209860419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381078A (en) * | 2020-04-30 | 2020-07-07 | 代勒智能电网技术(南京)有限公司 | Voltage sampling device of molded case circuit breaker |
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