Novel transient recording type fault indicator

Abstract

The invention relates to the technical field of transient wave recording type fault indicators, in particular to a novel transient wave recording type fault indicator which comprises an indicator unit, the indicator unit comprises an indicator body, a cable fixing groove is formed in the top of the indicator body, and a fixing piece detection block is installed at the top of the indicator body. The detection block is fixedly installed on the inner wall of the cable fixing groove, the bottom of the detection block is provided with a structure dustproof unit for fixing the cable, the dustproof unit is arranged in the cable fixing groove, and the fixing assembly and the sealing assembly are both arranged on the other side of the dustproof unit. When the positioning block moves towards the detection block, the sealing block can be inserted into the inner wall of the sealing groove, then the permanent magnet is pushed downwards, the sealing groove can be sealed, and therefore a large amount of dust and stains are prevented from making contact with the permanent magnet in the moving process.

Description

Technical Field

[0001] The invention relates to the technical field of transient waveform recording type fault indicators, and in particular to a novel transient waveform recording type fault indicator. Background Art

[0002] The new transient wave recording fault indicator integrates the technical features of self-energy, low power consumption, high-frequency wide-area measurement, etc., and can realize the transient continuous wave recording and accurate fault analysis of distribution lines. The equipment is widely used in 10kV overhead lines and cable lines, and has the functions of line load monitoring, short circuit fault, and ground fault indication. It can help line finders quickly find the fault point, shorten the power outage time, and improve the reliability of power supply.

[0003] When installing, the fault indicator generally needs to be placed on the outside of the cable that needs to be detected, so that the permanent magnet inside the fault indicator can fit with the outside of the cable. When a fault current occurs inside the detection cable, the permanent magnet will be driven to move by magnetic force. When the permanent magnet moves, it can push the internal components of the fault indicator to move, and then a fault indication will be issued at the bottom or outside of the fault indicator, allowing for a quick inspection by patrol personnel.

[0004] However, when installing existing fault indicators, they are generally installed directly on the outside of the cable using a clamp. On the one hand, dust may enter between the cable and the fault indicator during use, which may affect the fault current driving the permanent magnet to move. On the other hand, the fault indicator may be disassembled and then moved to a new location for secondary use. During transportation, the permanent magnet is directly exposed to the outside world, which may cause the permanent magnet to be covered with dust, thereby affecting the indication work of the fault indicator.

[0005] In view of this, the present invention provides a novel transient waveform recording type fault indicator to solve the above-mentioned problem. Summary of the invention

[0006] In view of the above shortcomings, the present invention provides a novel transient waveform recording type fault indicator, which can prevent dust from entering the gap between the indicator unit and the cable after the indicator unit is sleeved on the cable. The specific technical solution is as follows:

[0007] A novel transient waveform recording type fault indicator comprises an indicator unit, wherein the indicator unit comprises:

[0008] An indicator body, wherein a cable fixing groove is provided on the top of the indicator body, and a fixing piece is installed on the top of the indicator body;

[0009] A detection block, wherein the detection block is fixedly mounted on the inner wall of the cable fixing groove, and a structure for fixing the cable is provided at the bottom of the detection block;

[0010] A dustproof unit, wherein the dustproof unit is arranged inside the cable fixing groove;

[0011] The fixing component and the sealing component are both arranged on the other side of the dustproof unit.

[0012] Preferably, a rotating block is rotatably provided at one end of the fixing member, and the rotating block is fixedly connected to the top of the indicator body. A threaded pin is provided at the other end of the fixing member, and the bottom end of the threaded pin is threadedly connected to the top of the indicator body, and a ring is fixedly sleeved on the outer side of the threaded pin, and the ring is arranged inside the other end of the fixing member.

[0013] Preferably, the structure for fixing the cable comprises an empty slot opened between the indicator bodies, a permanent magnet is slidably arranged inside the empty slot, and an elastic member and a transmission rod are arranged at the bottom of the permanent magnet.

[0014] Preferably, the dustproof unit comprises a positioning block, which is slidably disposed on the inner wall of the cable fixing groove, and the positioning block is located on the side of the detection block.

[0015] Preferably, sealing grooves are provided at both ends of the empty groove, a sealing block is fixedly connected to the side of the positioning block close to the detection block, the sealing groove is opened on the inner ring surface of the detection block, the sealing block is inserted into the inner wall of the sealing groove, and the permanent magnet is resisted against the sealing block by the elastic force of the elastic part, the elastic part is in a compressed state, and the top sides of the permanent magnet and the side surfaces of the sealing block are set to arc surfaces.

[0016] Preferably, a slide groove is provided on the inner wall of the cable fixing groove, a sliding block is fixedly mounted on the outer ring surface of the positioning block, and the sliding block is slidably arranged on the inner wall of the slide groove.

[0017] Preferably, the fixing assembly includes an arc-shaped bar, which is located on the side of the positioning block, and a fixing block is fixedly installed on the end of the sliding block, and an extrusion groove is opened at the bottom of the fixed block, and an extrusion block is slidably arranged on the inner wall of the extrusion groove, and the extrusion block is connected to the arc-shaped bar; a movable rod is fixedly installed above the extrusion block, and the top of the movable rod extends upward through the fixed block and is fixedly connected to the end of the arc-shaped bar; a limiting spring is movably sleeved on the outer side of the movable rod, and the two ends of the limiting spring are respectively fixedly connected between the top of the extrusion block and the inside of the fixed block, and the extrusion block is tightly pressed against the inner wall of the slide groove under the elastic force of the limiting spring.

[0018] Preferably, the sealing assembly includes a rubber strip, which is arranged on the side of the positioning block, and a movable block is fixedly installed on the outer ring surface of the rubber strip; a positioning sleeve is fixedly installed on the side of the dustproof unit, and a connecting rod is movably inserted in the positioning sleeve, and the top end of the connecting rod extends upward and is fixedly connected to the movable block.

[0019] Preferably, a positioning ring is fixedly connected to the bottom end of the connecting rod, the positioning ring is slidably arranged inside the positioning sleeve, and a positioning spring sleeved on the outside of the connecting rod is fixedly connected between the top of the positioning ring and the inner wall of the positioning sleeve.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: during use, through the dustproof unit that is set, the positioning block in the dustproof unit can fit with the cable to play a supporting and sealing role, and at the same time the positioning block can slide inside the cable fixing groove, and when the positioning block moves toward the detection block, the sealing block can be inserted into the inner wall of the sealing groove, and then the permanent magnet is pushed downward, and the sealing groove can be sealed, thereby preventing a large amount of dust and stains from contacting the permanent magnet during the movement. When in use, the positioning block is pulled away from the detection block to separate the sealing block from the inner wall of the sealing groove. At this time, the permanent magnet is reset under the action of the elastic part, and the position of the positioning block can be fixed by the set fixing component, and the sealing component that is set can further seal the cable, preventing dust from entering the gap between the indicator unit and the cable after the indicator unit is sleeved on the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the fixing member of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the indicator body and the dustproof unit of the present invention;

[0025] Figure 4 It is a partial structural cross-sectional view of the indicator body of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the detection block of the present invention;

[0027] Figure 6 It is a partial structural schematic diagram of the dustproof unit of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the fixing assembly of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the sealing assembly of the present invention.

[0030] In the figure: 1. indicator unit; 11. indicator body; 12. cable fixing groove; 13. fixing piece; 131. rotating block; 132. threaded pin; 133. circular ring; 14. detection block; 15. empty groove; 16. permanent magnet; 17. elastic piece; 18. transmission rod; 2. dustproof unit; 21. positioning block; 22. sealing groove; 23. sealing block; 24. slide groove; 25. slider; 3. fixing assembly; 31. arc strip; 32. fixing block; 33. extrusion block; 34. extrusion groove; 35. movable rod; 36. limit spring; 4. sealing assembly; 41. rubber strip; 42. movable block; 43. positioning sleeve; 44. connecting rod; 45. positioning ring; 46. positioning spring DETAILED DESCRIPTION

[0031] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment 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.

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] The embodiment of the present invention discloses a novel transient waveform recording type fault indicator. Figure 1-8 As shown, the indicator unit 1 includes:

[0036] An indicator body 11, a cable fixing groove 12 is provided on the top of the indicator body 11, and a fixing member 13 is installed on the top of the indicator body 11;

[0037] A detection block 14, the detection block 14 is fixedly mounted on the inner wall of the cable fixing groove 12, and an empty groove 15 is opened between the bottom of the detection block 14 and the indicator body 11, a permanent magnet 16 is slidably arranged inside the empty groove 15, an elastic member 17 and a transmission rod 18 are arranged at the bottom of the permanent magnet 16, the permanent magnet 16 cooperates with the elastic member 17 to resist the cable, thereby performing the function of fault current detection, and at the same time, when the permanent magnet 16 moves, the transmission rod 18 is transmitted toward the internal components of the indicator unit 1, thereby achieving the function of indication;

[0038] A dustproof unit 2 is provided inside the cable fixing groove 12, and the dustproof unit 2 includes:

[0039] A positioning block 21, which is slidably disposed on the inner wall of the cable fixing groove 12, and the positioning block 21 is located on the side of the detection block 14, and a sealing block 23 is fixedly connected to one side of the positioning block 21 close to the detection block 14;

[0040] A sealing groove 22 is provided on the inner ring surface of the detection block 14, a sealing block 23 is plugged into the inner wall of the sealing groove 22, and the permanent magnet 16 is pressed against the sealing block 23 by the elastic force of the elastic member 17;

[0041] The fixing assembly 3 and the sealing assembly 4 are both arranged on the other side of the positioning block 21 .

[0042] During use, through the dustproof unit 2, the positioning block 21 in the dustproof unit 2 can fit with the cable to play a supporting and sealing role. At the same time, the positioning block 21 can slide inside the cable fixing groove 12. When the positioning block 21 moves toward the detection block 14, the sealing block 23 can be inserted into the inner wall of the sealing groove 22, and then the permanent magnet 16 is pushed downward to seal the sealing groove 22, thereby preventing a large amount of dust and stains from contacting the permanent magnet 16 during the movement. When in use, the positioning block 21 is pulled away from the detection block 14 to separate the sealing block 23 from the inner wall of the sealing groove 22. At this time, the permanent magnet 16 is reset under the action of the elastic member 17, and the position of the positioning block 21 can be fixed by the fixing component 3. The sealing component 4 can further seal the cable to prevent dust from entering the gap between the indicator unit 1 and the cable after the indicator unit 1 is sleeved on the cable.

[0043] Furthermore, a rotating block 131 is rotatably provided at one end of the fixing member 13, and the rotating block 131 is fixedly connected to the top of the indicator body 11. A threaded pin 132 is provided at the other end of the fixing member 13, and the bottom end of the threaded pin 132 is threadedly connected to the top of the indicator body 11, and a ring 133 is fixedly sleeved on the outer side of the threaded pin 132, and the ring 133 is arranged inside the other end of the fixing member 13.

[0044] The fixing member 13 can be fixed by the provided threaded pin 132 , and the cable can be clamped and fixed between the fixing member 13 , the positioning block 21 and the detection block 14 .

[0045] Furthermore, the elastic member 17 is in a compressed state, and both sides of the top of the permanent magnet 16 and the side surfaces of the sealing block 23 are configured as arc surfaces.

[0046] This makes it easier for the sealing block 23 to squeeze the permanent magnet 16 to move vertically.

[0047] Furthermore, a slide groove 24 is provided on the inner wall of the cable fixing groove 12 , a slider 25 is fixedly mounted on the outer ring surface of the positioning block 21 , and the slider 25 is slidably disposed on the inner wall of the slide groove 24 .

[0048] The sliding groove 24 and the sliding block 25 are provided to facilitate pushing the positioning block 21 to move on the inner wall of the cable fixing groove 12 .

[0049] Specially disclosed, fixed component 3:

[0050] An arc strip 31, the arc strip 31 is located on the side of the positioning block 21;

[0051] The fixing block 32 is fixedly mounted on the end of the slider 25 . An extrusion groove 34 is provided at the bottom of the fixing block 32 . An extrusion block 33 is slidably provided on the inner wall of the extrusion groove 34 . The extrusion block 33 is connected to the arc strip 31 .

[0052] Furthermore, a movable rod 35 is fixedly installed above the extrusion block 33 , and a top end of the movable rod 35 passes through the fixed block 32 , extends upward, and is fixedly connected to the end of the arc strip 31 .

[0053] Furthermore, the outer side of the movable rod 35 is movably sleeved with a limit spring 36, and the two ends of the limit spring 36 are respectively fixedly connected between the top of the extrusion block 33 and the inside of the fixed block 32, and the extrusion block 33 is tightly against the inner wall of the slide groove 24 under the elastic force of the limit spring 36.

[0054] When moving the positioning block 21, the arc strip 31 is pulled upward, so that the movable rod 35 at the end of the arc strip 31 drives the extrusion block 33 to move upward on the inner wall of the extrusion groove 34, thereby separating the extrusion block 33 from the inner wall of the slide groove 24. At this time, the positioning block 21 can be moved until it moves to a suitable position, and the arc strip 31 is released, so that the extrusion block 33 is tightly against the inner wall of the slide groove 24 under the elastic force of the limit spring 36, thereby fixing the position of the positioning block 21.

[0055] Particularly disclosed, the sealing assembly 4 comprises:

[0056] A rubber strip 41, which is arranged on the side of the positioning block 21, and a movable block 42 is fixedly mounted on the outer ring surface of the rubber strip 41;

[0057] The positioning sleeve 43 is fixedly mounted on the side of the positioning block 21 , and a connecting rod 44 is movably inserted in the positioning sleeve 43 , and the top end of the connecting rod 44 extends upward and is fixedly connected to the movable block 42 .

[0058] Furthermore, a positioning ring 45 is fixedly connected to the bottom end of the connecting rod 44 , and the positioning ring 45 is slidably arranged inside the positioning sleeve 43 , and a positioning spring 46 sleeved on the outside of the connecting rod 44 is fixedly connected between the top of the positioning ring 45 and the inner wall of the positioning sleeve 43 .

[0059] By setting the sealing assembly 4, after the cable is fixed, under the action of the positioning spring 46, the positioning ring 45 and the connecting rod 44 are pulled upward, thereby pushing the movable block 42 and the rubber strip 41 upward until the rubber strip 41 is tightly against the bottom of the cable, and the cable is clamped between the rubber strip 41 and the fixing member 13, thereby further achieving a sealing effect.

[0060] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A novel transient waveform recording type fault indicator, comprising an indicator unit (1), characterized in that: The indicator unit (1) comprises: An indicator body (11), wherein a cable fixing groove (12) is provided on the top of the indicator body (11), and a fixing member (13) is installed on the top of the indicator body (11); A detection block (14), wherein the detection block (14) is fixedly mounted on the inner wall of the cable fixing groove (12), and a structure for fixing the cable is provided at the bottom of the detection block (14); A dustproof unit (2), wherein the dustproof unit (2) is arranged inside the cable fixing groove (12); The fixing component (3) and the sealing component (4) are both arranged on the other side of the dustproof unit (2).

2. The novel transient waveform recording fault indicator according to claim 1 is characterized in that: A rotating block (131) is rotatably provided at one end of the fixing member (13), and the rotating block (131) is fixedly connected to the top of the indicator body (11). A threaded pin (132) is provided at the other end of the fixing member (13), and the bottom end of the threaded pin (132) is threadedly connected to the top of the indicator body (11), and a circular ring (133) is fixedly sleeved on the outer side of the threaded pin (132), and the circular ring (133) is arranged inside the other end of the fixing member (13).

3. The novel transient waveform recording fault indicator according to claim 1 is characterized in that: The structure for fixing the cable comprises an empty slot (15) opened between the indicator bodies (11), a permanent magnet (16) is slidably arranged inside the empty slot (15), and an elastic member (17) and a transmission rod (18) are arranged at the bottom of the permanent magnet (16).

4. The novel transient waveform recording fault indicator according to claim 3 is characterized in that: The dustproof unit (2) comprises a positioning block (21), the positioning block (21) is slidably arranged on the inner wall of the cable fixing groove (12), and the positioning block (21) is located on the side of the detection block (14).

5. The novel transient waveform recording type fault indicator according to claim 4 is characterized in that: Sealing grooves (22) are provided at both ends of the empty groove (15); a sealing block (23) is fixedly connected to one side of the positioning block (21) close to the detection block (14); the sealing groove (22) is provided on the inner ring surface of the detection block (14); the sealing block (23) is plugged into the inner wall of the sealing groove (22); the permanent magnet (16) is pressed against the sealing block (23) by the elastic force of the elastic member (17); the elastic member (17) is in a compressed state; and both sides of the top of the permanent magnet (16) and the side surfaces of the sealing block (23) are arranged as arc surfaces.

6. The novel transient waveform recording type fault indicator according to claim 5 is characterized in that: A sliding groove (24) is provided on the inner wall of the cable fixing groove (12), a sliding block (25) is fixedly mounted on the outer ring surface of the positioning block (21), and the sliding block (25) is slidably arranged on the inner wall of the sliding groove (24).

7. The novel transient waveform recording type fault indicator according to claim 6 is characterized in that: The fixing assembly (3) comprises an arc-shaped strip (31), the arc-shaped strip (31) is located on the side of the positioning block (21), a fixing block (32) is fixedly installed at the end of the sliding block (25), an extrusion groove (34) is provided at the bottom of the fixing block (32), an extrusion block (33) is slidably arranged on the inner wall of the extrusion groove (34), and the extrusion block (33) is connected to the arc-shaped strip (31); a movable rod (35) is fixedly installed above the extrusion block (33), the top end of the movable rod (35) passes through the fixing block (32) and extends upward and is fixedly connected to the end of the arc-shaped strip (31); a limiting spring (36) is movably sleeved on the outer side of the movable rod (35), the two ends of the limiting spring (36) are respectively fixedly connected between the top of the extrusion block (33) and the inside of the fixing block (32), and the extrusion block (33) is tightly abutted against the inner wall of the sliding groove (24) under the elastic force of the limiting spring (36).

8. The novel transient waveform recording fault indicator according to claim 1 is characterized in that: The sealing assembly (4) comprises a rubber strip (41) which is arranged on the side of the positioning block (21), and a movable block (42) is fixedly mounted on the outer ring surface of the rubber strip (41); a positioning sleeve (43) is fixedly mounted on the side of the dustproof unit (2), and a connecting rod (44) is movably inserted in the positioning sleeve (43), and the top end of the connecting rod (44) extends upward and is fixedly connected to the movable block (42).

9. The novel transient waveform recording type fault indicator according to claim 8 is characterized in that: A positioning ring (45) is fixedly connected to the bottom end of the connecting rod (44), and the positioning ring (45) is slidably arranged inside the positioning sleeve (43). A positioning spring (46) sleeved on the outside of the connecting rod (44) is fixedly connected between the top of the positioning ring (45) and the inner wall of the positioning sleeve (43).

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