Insulation monitor

Abstract

The utility model relates to the technical field of insulation monitors, and discloses an insulation monitor comprising an instrument main body, the upper surface of the instrument main body is provided with a wire box, the interior of the wire box is provided with two reels, and the ends, far away from each other, of the two reels respectively and rotatably penetrate through the inner walls of the left and right sides of the wire box. The sides, close to each other, of the two reels are fixedly connected through an opening shaft, wire grooves communicated with the opening shaft are formed in the sides, close to each other, of the two reels, a detection wire is arranged on the inner side of the opening shaft, and the parts, located on the two sides of the opening shaft, of the detection wire are located in the two wire grooves respectively; according to the insulation monitor, through the winding wheels and the opening shaft which are installed in the wire box, the two winding wheels are rotated to wind a detection wire on the surfaces of the two winding wheels, then the two ends of the detection wire penetrate out of the transverse grooves, and the detection wire is stored and wound on the winding wheels when not used; when the detection line is used, the two ends of the detection line can be pulled out by the required length through rotation of the reel.

Description

Technical Field

[0001] The utility model relates to the technical field of insulation monitors, in particular to an insulation monitor. Background Art

[0002] In order to enhance the safety and reliability of system power supply, many countries have introduced standards, which clearly stipulate that some important places should adopt local IT power distribution system (also known as isolated power supply system) for power supply, and be equipped with insulation monitoring devices to monitor the insulation condition of IT system. The products can be widely used in medical, telecommunications, metallurgy, coal mining, shipbuilding, construction machinery, petrochemical and transportation engineering and other fields.

[0003] During detection, the insulation monitor is connected to the object to be detected through a detection line. One end of the detection line is connected to the monitor body through a plug, and the other end of the detection line is connected to the object to be detected through a clamp. The detection line is generally separated from the monitor body when not in use, and the detection line is easy to be scattered. At the same time, when the detection line is in use, the detection line is scattered in the detection space, making the detection space unsafe. Therefore, an insulation monitor is proposed that can retract the detection line. The detection line can be stored when not in use, and only the corresponding length is pulled out for connection during detection, which effectively prevents longer detection lines from being scattered in the detection space. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an insulation monitor, which has the advantages of being able to store and control the discharge of detection lines, thereby solving the problem of safety hazards caused by scattered detection lines outside.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulation monitor, comprising an instrument body, a wire box is installed on the upper surface of the instrument body, two winding wheels are arranged inside the wire box, the ends of the two winding wheels that are away from each other are rotated to pass through the left and right inner walls of the wire box respectively, the sides of the two winding wheels that are close to each other are fixedly connected by an open shaft, the sides of the two winding wheels that are close to each other are both provided with wire grooves connected to the open shaft, a detection line is arranged on the inner side of the open shaft, parts of the detection line located on both sides of the open shaft are respectively located inside the two wire grooves, two ends of the detection line are respectively wound around the outer surfaces of the two winding wheels, a transverse groove is provided on the front side of the wire box, and the two ends of the detection line located in front of the two winding wheels both slide through the inside of the transverse groove.

[0008] In some embodiments, an inner gear disc is fixedly installed on the right end of the wire box, and a telescopic clamping rod is fixedly connected to the circumferential side of one end of the winding wheel located on the right side on the inner side of the inner gear disc, and the other end of the telescopic clamping rod is movably engaged with the inner annular surface of the inner gear disc, and the inner annular surface of the inner gear disc is a toothed alveolar structure, and the inner gear disc is rotatably sleeved on the outer surface of the right end of the winding wheel located on the right side.

[0009] In some embodiments, the outer surface of the opening shaft is rotatably sleeved with an opening sealing shaft, and the left and right ends of the opening sealing shaft are fixedly connected with opening sealing disks, and the two opening sealing disks are rotatably sleeved on the outer surface of the opening shaft, and the upper surfaces of the opening shaft, the opening sealing disk and the opening sealing shaft are all open structures connected to the axis.

[0010] In some embodiments, the upper end of the wire box is open, an arc-shaped cover is provided in the opening of the wire box, and the rear end of the arc-shaped cover is elastically rotatably connected to the opening of the wire box.

[0011] In some embodiments, half sliders are slidably inserted inside the transverse groove and on both sides of the left and right sides at both ends of the detection line, and the front ends of the two half sliders are rotatably sleeved with a fitting.

[0012] In some embodiments, the front end of the semi-slider is a semi-cylindrical structure, the sleeve is a semi-cylindrical structure, and the contact surface between the semi-slider and the detection line is a semi-hole structure.

[0013] In some embodiments, the opening shaft is coaxially arranged with the two winding wheels, the inner gear disc is coaxially arranged with the opening shaft, and the axis of the telescopic clamping rod intersects the axis of the opening shaft perpendicularly.

[0014] In some embodiments, the right end of the arc-shaped cover is fixedly connected to a round rod, and the right end surface of the winding wheel located on the right side is fixedly connected to a torsion frame.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an insulation monitor with the following beneficial effects:

[0017] 1. The insulation monitor is installed in the wire box through the winding wheel and the open shaft. When the detection line is not in use, the middle part of the detection line is pushed into the inside from the opening of the open shaft, and then the two sides of the detection line are passed through the wire groove, and then the two winding wheels are rotated to wind the detection line on the surface, and then the two ends of the detection line are passed through the horizontal groove. When the detection line is not in use, it is stored and wound on the winding wheel. When the detection line is in use, the two ends of the detection line can be pulled out to the required length by rotating the winding wheel.

[0018] 2. The insulation monitor is provided with an open sealing shaft and an open sealing disk. After the detection line is pressed into the wire groove and the open shaft, the open sealing shaft and the open sealing disk are rotated to misalign the openings of the open sealing shaft and the open sealing disk with the opening of the open shaft and the wire groove, thereby ensuring that the detection line will not be separated from the wire groove and the open shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the wire box of the utility model;

[0021] Figure 3 It is a schematic top view of part of the structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the opening shaft and the opening sealing shaft of the utility model;

[0023] Figure 5 This is a schematic diagram of the connection between the sleeve and the half slider of the utility model;

[0024] Figure 6 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0025] In the figure:

[0026] 1. Instrument body; 2. Wire box; 3. Open shaft; 4. Wire slot; 5. Test wire; 6. Horizontal slot; 7. Winding wheel; 8. Internal gear disc; 9. Telescopic clamping rod; 10. Open sealing shaft; 11. Open sealing disc; 12. Torsion frame; 13. Arc-shaped sealing cover; 14. Half slider; 15. Sleeve; 16. Round rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] When the insulation monitor is testing, one end of the test line is connected to the object to be tested, and the other end of the test line is connected to the monitor to enable the monitor to test.

[0032] In the related art, the detection line is generally separated from the monitoring instrument body when not in use, and the detection line is easily scattered. At the same time, when the detection line is in use, the detection line is scattered in the detection space, making the detection space unsafe.

[0033] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides an insulation monitor. When it is needed, it is only necessary to push the middle part of the detection line 5 into the interior from the opening of the opening shaft 3, and then make the two side parts of the detection line 5 pass through the wire groove 4, and then rotate the opening sealing shaft 10 and the opening sealing disk 11 to make the openings of the opening sealing shaft 10 and the opening sealing disk 11 misaligned with the opening of the opening shaft 3 and the wire groove 4, and block the detection line 5 in the opening shaft 3 and the wire groove 4, and then rotate the two winding wheels 7 to wind the detection line 5 on its surface, and then pass the two ends of the detection line 5 through the horizontal groove 6. When the detection line 5 is not in use, it is stored and wound on the winding wheel 7. When the detection line is in use, the two ends of the detection line 5 can be pulled out to the required length by rotating the winding wheel 7.

[0034] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0035] Combination Figure 1-Figure 6The embodiment of the present application provides an insulation monitor, including an instrument body 1, a wire box 2 is installed on the upper surface of the instrument body 1, and the number of wire boxes 2 is installed according to demand. Two winding wheels 7 are arranged inside the wire box 2, and the ends of the two winding wheels 7 that are far away from each other rotate to penetrate the left and right inner walls of the wire box 2 respectively, and the sides of the two winding wheels 7 that are close to each other are fixedly connected through an open shaft 3, and the sides of the two winding wheels 7 that are close to each other are both provided with wire grooves 4 that are connected to the open shaft 3, and a detection line 5 is arranged on the inner side of the open shaft 3, and the parts of the detection line 5 located on both sides of the open shaft 3 are respectively located inside the two wire grooves 4, and the two ends of the detection line 5 are respectively wound around the outer surfaces of the two winding wheels 7, and a transverse groove 6 is opened on the front of the wire box 2, and the two ends of the detection line 5 located in front of the two winding wheels 7 slide through the inside of the transverse groove 6.

[0036] The two winding wheels 7 can wind the detection line 5 so that the two ends of the detection line 5 are wound on the surfaces of the two winding wheels 7 in opposite spiral directions, and then the two ends of the detection line 5 are passed through the lower ends of the winding wheels 7 and the transverse grooves 6, so that the two ends of the detection line 5 can be synchronously wound and unwound when the two winding wheels 7 rotate forwards and backwards.

[0037] In some embodiments, an inner gear disc 8 is fixedly installed on the right end of the wire box 2, and a telescopic clamping rod 9 is fixedly connected to the circumferential side surface of one end of the winding wheel 7 located on the right side on the inner side of the inner gear disc 8, and the other end of the telescopic clamping rod 9 is movably engaged with the inner annular surface of the inner gear disc 8. The inner annular surface of the inner gear disc 8 is a tooth-shaped structure, and the inner gear disc 8 is rotatably sleeved on the outer surface of the right end of the winding wheel 7 located on the right side, the opening shaft 3 is coaxially arranged with the two winding wheels 7, the inner gear disc 8 is coaxially arranged with the opening shaft 3, and the axis of the telescopic clamping rod 9 intersects with the axis of the opening shaft 3 at right angles.

[0038] Specifically, the telescopic clamping rod 9 is inserted into the inner ring surface of the inner gear disk 8 under its own elasticity, providing resistance to the rotation of the winding wheel 7. When the winding wheel 7 is twisted to rotate, the telescopic clamping rod 9 is pushed to gradually be dislocated with the tooth alveolar structure of the inner gear disk 8 through extension and retraction. When the torque on the winding wheel 7 stops, the winding wheel 7 rotates to move the detection line 5 out of the wire box 2.

[0039] In some embodiments, an opening sealing shaft 10 is rotatably sleeved on the outer surface of the opening shaft 3, and an opening sealing disk 11 is fixedly connected to both ends of the opening sealing shaft 10. The two opening sealing disks 11 are rotatably sleeved on the outer surface of the opening shaft 3, and the upper surfaces of the opening shaft 3, the opening sealing disk 11 and the opening sealing shaft 10 are all open structures connected to the axis.

[0040] Specifically, the openings of the opening sealing shaft 10 and the opening sealing disk 11 are misaligned with the opening of the opening shaft 3 and the wire groove 4 , so that the detection line 5 is blocked in the opening shaft 3 and the wire groove 4 .

[0041] In some embodiments, the upper end of the wire box 2 is open, and an arc-shaped cover 13 is provided in the opening of the wire box 2. The rear end of the arc-shaped cover 13 is elastically rotatably connected to the opening of the wire box 2. The right end of the arc-shaped cover 13 is fixedly connected to a round rod 16, and the arc-shaped cover 13 can be driven to rotate by pulling the round rod 16. The right end face of the winding wheel 7 on the right side is fixedly connected to a torsion frame 12, and twisting the torsion frame 12 can drive the winding wheel 7 to rotate.

[0042] Specifically, the elastically connected arc-shaped cover 13 can seal the upper end of the wire box 2, effectively reducing dust adhesion to the detection line.

[0043] In some embodiments, semi-slide blocks 14 are slidably inserted inside the transverse groove 6 and on the left and right sides at both ends of the detection line 5. The front ends of the two semi-slide blocks 14 are rotatably sleeved with a fitting sleeve 15. The front ends of the semi-slide blocks 14 are semi-cylindrical structures, the fitting sleeve 15 is a semi-cylindrical structure, and the contact surface between the semi-slide blocks 14 and the detection line 5 is a semi-hole structure.

[0044] Specifically, after the detection line 5 passes through the corresponding two half sliders 14, the corresponding two sleeves 15 are rotated relative to the two half sliders 14 to misalign the sleeves 15 with the front end semi-cylindrical structure of the half sliders 14. The two half sliders 14 can be fixed together. As the detection line 5 moves on the surface of the winding wheel 7, the half slider 14 is driven to slide in the transverse groove 6. The half slider 14 can prevent the plug end and the clamp end of the detection line 5 from entering the wire box 2, making it inconvenient to pull out the detection line 5 later.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0046] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] 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 insulation monitoring instrument, comprising an instrument body (1), characterized in that: A wire box (2) is installed on the upper surface of the instrument body (1), and two winding wheels (7) are arranged inside the wire box (2). The ends of the two winding wheels (7) that are away from each other rotate and penetrate the left and right inner walls of the wire box (2), and the sides of the two winding wheels (7) that are close to each other are fixedly connected through an open shaft (3). The sides of the two winding wheels (7) that are close to each other are both provided with wire grooves (4) that are connected to the open shaft (3). A detection line (5) is arranged on the inner side of the open shaft (3), and the parts of the detection line (5) located on both sides of the open shaft (3) are respectively located inside the two wire grooves (4), and the two ends of the detection line (5) are respectively wound around the outer surfaces of the two winding wheels (7). A transverse groove (6) is opened on the front of the wire box (2), and the two ends of the detection line (5) located in front of the two winding wheels (7) slide through the inside of the transverse groove (6).

2. An insulation monitor according to claim 1, characterized in that: An inner toothed disc (8) is fixedly mounted on the right end of the wire box (2); a telescopic clamping rod (9) is fixedly connected to the circumferential side surface of one end of the winding wheel (7) located on the right side and located inside the inner toothed disc (8); the other end of the telescopic clamping rod (9) is movably clamped with the inner ring surface of the inner toothed disc (8); the inner ring surface of the inner toothed disc (8) is a toothed alveolar structure; the inner toothed disc (8) is rotatably sleeved on the outer surface of the right end of the winding wheel (7) located on the right side.

3. An insulation monitor according to claim 1, characterized in that: The outer surface of the open shaft (3) is rotatably sleeved with an open sealing shaft (10), and both left and right ends of the open sealing shaft (10) are fixedly connected with open sealing disks (11), and both open sealing disks (11) are rotatably sleeved on the outer surface of the open shaft (3), and the upper surfaces of the open shaft (3), the open sealing disk (11) and the open sealing shaft (10) are all open structures that are connected to the axis.

4. An insulation monitoring instrument according to claim 1, characterized in that: The upper end of the wire box (2) is open, an arc-shaped cover (13) is arranged in the opening of the wire box (2), and the rear end of the arc-shaped cover (13) is elastically rotatably connected to the opening of the wire box (2).

5. The insulation monitor according to claim 1, characterized in that: Semi-sliding blocks (14) are slidably inserted in the interior of the transverse groove (6) and on both sides of the two ends of the detection line (5), and the front ends of the two semi-sliding blocks (14) are rotatably sleeved with a fitting sleeve (15).

6. An insulation monitoring instrument according to claim 5, characterized in that: The front end of the semi-slider (14) is a semi-cylindrical structure, the sleeve (15) is a semi-cylindrical structure, and the contact surface between the semi-slider (14) and the detection line (5) is a semi-hole structure.

7. An insulation monitoring instrument according to claim 2, characterized in that: The opening shaft (3) is coaxially arranged with the two winding wheels (7), the inner gear disc (8) is coaxially arranged with the opening shaft (3), and the axis of the telescopic clamping rod (9) intersects perpendicularly with the axis of the opening shaft (3).

8. An insulation monitoring instrument according to claim 4, characterized in that: The right end of the arc-shaped cover (13) is fixedly connected to a round rod (16), and the right end surface of the winding wheel (7) located on the right side is fixedly connected to a torsion frame (12).

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