A ground line state monitor

Abstract

The utility model discloses a grounding wire state monitor, include: chuck, compression assembly and ground assembly, compression assembly includes the plug -in connection department, and the end of plug -in connection department is connected in the side of chuck in proper order, and the end of plug -in connection department and be located in the cavity of chuck is provided with monitoring unit, and the junction of monitoring unit and plug -in connection department is provided with connecting part, and one end of plug -in connection department is provided with insulating part, and ground assembly sets up in the side of chuck, and ground assembly is used for grounding connection. The utility model discloses through being provided with compression assembly in the cavity of chuck, and the monitoring unit for monitoring cable pressure in compression assembly is locked in the end of plug -in connection department through connecting part, and the relative side of ground cable is limited in monitoring unit and chuck inner wall under pressure, compared with the bolt direct extrusion monitoring unit and ground cable, and the connecting part in the design of monitoring unit is positioned, avoids the monitoring unit and easily uneven force produces skew situation in the process of bolt extrusion ground cable through monitoring unit.

Description

Technical Field

[0001] This utility model relates to the field of power monitoring equipment, and in particular to a grounding wire status monitor. Background Technology

[0002] In the field of power system and equipment grounding protection, grounding wire status monitors are used to monitor the continuity of grounding wires in real time. The core of these monitors is to ensure reliable contact between the monitoring probe and the grounding wire cable.

[0003] Traditional monitoring devices often use bolt-threaded clamps, where the bolt joint directly presses against the monitoring unit, which in turn directly presses against the ground cable. The ground cable is confined within the monitoring unit and the inner wall of the clamp. However, there is no fixed limiting structure between the monitoring unit and the bolt joint. During bolt tightening, the monitoring unit and ground cable are only compressed by the pressure on one side of the bolt end. Since the ground cable connector is cylindrical, the monitoring unit is prone to shifting or tilting due to uneven force during the compression process, which can easily lead to poor contact between the monitoring contacts and the cable, affecting data acquisition.

[0004] Therefore, how to achieve a stable crimp connection between the monitoring unit and the grounding cable has become a technical problem that the grounding wire status monitor urgently needs to solve. Utility Model Content

[0005] The purpose of this invention is to provide a grounding wire status monitor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grounding wire status monitor, comprising:

[0007] Clamp;

[0008] A clamping assembly is used for clamping and fixing a ground wire. The clamping assembly includes a plug-in part, the ends of which are sequentially inserted and connected to the side of a clamp. A monitoring part for monitoring the cable clamping force is provided at the end of the plug-in part and in the inner cavity of the clamp. A connecting part for locking the monitoring part is provided at the connection between the monitoring part and the plug-in part. An insulating part for gripping and rotating the plug-in part is provided at one end of the plug-in part.

[0009] A grounding component is disposed on the side of the clamp and is used for grounding connection.

[0010] Preferably, the insertion part includes a threaded rod, the end of which is threadedly connected to the side of the chuck, and the connecting part is disposed at the end of the threaded rod.

[0011] Preferably, the monitoring unit includes:

[0012] A pressure monitoring element is disposed at the top of the connector and is used to monitor the compressive force of the cable.

[0013] A pressure display, wherein the output terminal of the pressure monitoring element is electrically connected to the input terminal of the pressure display, and the pressure display is used to display cable extrusion pressure data.

[0014] Preferably, the connecting portion includes:

[0015] A limiting post, one end of which is inserted and connected to the end of a threaded rod;

[0016] A reinforcing column is provided at the bottom of the pressure monitoring element, and the end of the reinforcing column away from the pressure monitoring element is inserted and connected to the other end of the limiting column.

[0017] A plurality of elastic inserts are arranged around the bottom outer side of the pressure monitoring element, and the bottom end of the elastic inserts is inserted and connected to the other end of the limiting post.

[0018] Locking slots, a plurality of said locking slots are formed around the other end of the limiting post, said locking slots are used for the insertion and locking of the elastic insert;

[0019] A protective component is disposed on the outside of the limiting post, and the protective component is used for isolation and protection of the pressure monitoring element.

[0020] Preferably, the protective component includes:

[0021] A grooved plate is sleeved on the outside of the limiting post, and the grooved plate is used to isolate and protect the pressure monitoring element;

[0022] A fixing ring is sleeved on the outside of the limiting post and located on the opposite side of the threaded rod and the pressure groove plate;

[0023] A fixing nut is threaded onto the outside of the limiting post and located on the side of the pressure groove plate away from the fixing ring. The fixing nut is used to press and fix the pressure groove plate.

[0024] Preferably, the insulating part includes an insulating handle, the top end of which is inserted and connected to the bottom end of the threaded rod.

[0025] Preferably, the grounding component includes:

[0026] A grounding head, used for grounding fixation, wherein a compression screw for pressing grounding terminals is threadedly connected to the bottom of the grounding head;

[0027] A conductor, the two ends of which are respectively inserted and connected to the sides of the clamp and the grounding terminal, the conductor being used for grounding conduction;

[0028] Clamping bolts, the ends of which are respectively inserted and connected to the connection between the wire and the clamp and the grounding head.

[0029] The technical effects and advantages of this utility model are as follows:

[0030] This invention features a clamping assembly within the inner cavity of the clamp. A monitoring section within this assembly, used to monitor the pressure on the cable, is locked to the end of the plug-in section via a connecting section. The ground cable is pressure-limited on the opposite side of the monitoring section and the inner wall of the clamp. Compared to bolts directly pressing the monitoring section and the ground cable, the connecting section in this design limits the monitoring section, preventing uneven force distribution and skewing of the monitoring section during the bolt's compression of the ground cable. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0032] Figure 2 This is a cross-sectional view of the clamping assembly of this utility model.

[0033] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0034] Figure 4 This is a schematic diagram of the pressure monitoring element of this utility model.

[0035] In the diagram: 1. Chuck; 2. Threaded rod; 201. Insulated grip; 3. Pressure groove plate; 4. Pressure monitoring element; 401. Pressure display; 5. Wire; 6. Clamping bolt; 7. Grounding head; 701. Extrusion screw; 8. Connecting part; 801. Limiting post; 8011. Locking groove; 802. Retaining ring; 803. Fixing nut; 804. Elastic insert; 805. Reinforcing post. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1: This utility model provides the following... Figure 1-4 A grounding wire status monitor is shown, comprising: a clamp 1, a clamping assembly, and a grounding assembly;

[0038] Specifically, the clamping component is used for pressing and fixing the ground wire, and the grounding component is located on the side of the clamp 1 and is used for grounding connection;

[0039] It should be noted that the clamping assembly includes a plug-in part, the ends of which are sequentially inserted and connected to the side of the clamp 1. The end of the plug-in part and located in the inner cavity of the clamp 1 are provided with a monitoring part for monitoring the cable clamping force. A connecting part 8 for locking the monitoring part is provided at the connection between the monitoring part and the plug-in part. An insulating part for gripping and rotating the plug-in part is provided at one end of the plug-in part.

[0040] Specifically, the insertion part includes a threaded rod 2, the end of which is threadedly connected to the side of the chuck 1, and the connecting part 8 is provided at the end of the threaded rod 2;

[0041] It should be noted that the side of the chuck 1 is provided with a threaded hole for the threaded rod 2 to pass through, and the monitoring part includes: a pressure monitoring element 4 and a pressure display 401;

[0042] Specifically, the pressure monitoring element 4 is disposed on the top of the connecting part 8. The pressure monitoring element 4 is used to monitor the compressive force of the cable. The output end of the pressure monitoring element 4 is electrically connected to the input end of the pressure display 401. The pressure display 401 is used to display the cable compressive force data.

[0043] It should be noted that the inner wall of the clamp 1 is provided with a groove for limiting the ground wire cable. The pressure monitoring element 4 and the pressure display 401 form a whole that refers to the working principle of the AR-N14 high-precision pressure sensor display. Its pressure-bearing surface directly squeezes the ground wire cable. When the ground wire cable is loose, the pressure value changes, thereby prompting the staff that the connection between the ground wire cable and the clamp 1 is loose and may fall off.

[0044] Furthermore, the connecting part 8 includes: a limiting post 801, a reinforcing post 805, a protective component, and a locking groove 8011;

[0045] It should be noted that one end of the limiting post 801 is inserted and connected to the end of the threaded rod 2, the reinforcing post 805 is set at the bottom of the pressure monitoring element 4, the end of the reinforcing post 805 away from the pressure monitoring element 4 is inserted and connected to the other end of the limiting post 801, multiple elastic inserts 804 are arranged around the bottom outside of the pressure monitoring element 4, the bottom end of the elastic inserts 804 is inserted and connected to the other end of the limiting post 801, multiple locking grooves 8011 are opened around the other end of the limiting post 801, and the protective part is set on the outside of the limiting post 801.

[0046] Specifically, the locking groove 8011 is used for the insertion and locking of the elastic insert 804, the protective component is used for the isolation and protection of the pressure monitoring element 4, one end of the limiting post 801 is set as a protrusion, thereby restricting the limiting post 801 and the threaded rod 2, so that the threaded rod 2 can only rotate and cannot be disengaged from the limiting post 801, the reinforcing post 805 is welded and fixed to the pressure monitoring element 4, and the other end of the limiting post 801 is provided with a cylindrical groove, which is used for the insertion of the reinforcing post 805. The elastic insert 804 is welded and fixed to the bottom of the pressure monitoring element 4, and the side of the elastic insert 804 is set as a wedge-shaped protrusion, thereby locking and fixing the elastic insert 804 to the inner wall of the locking groove 8011. The operator can press and squeeze the elastic insert 804 in the inner cavity of the locking groove 8011, thereby unlocking the elastic insert 804 from the locking groove 8011 and realizing the disassembly of the pressure monitoring element 4.

[0047] Specifically, the protective components include: a grooved plate 3, a retaining ring 802, and a retaining nut 803;

[0048] It should be noted that the grooved plate 3 is sleeved on the outside of the limiting post 801. The grooved plate 3 is used to isolate and protect the pressure monitoring element 4. The fixing ring 802 is sleeved on the outside of the limiting post 801 and is located on the opposite side of the threaded rod 2 and the grooved plate 3. The fixing nut 803 is threaded on the outside of the limiting post 801 and is located on the side of the grooved plate 3 away from the fixing ring 802. The fixing nut 803 is used to press and fix the grooved plate 3.

[0049] Specifically, the fixing ring 802 is welded and fixed to the limiting post 801. The outer side of the limiting post 801 is provided with a thread corresponding to the fixing nut 803. By tightening the fixing nut 803, the pressure plate 3 is limited between the fixing ring 802 and the fixing nut 803, and the pressure plate 3 partially covers the ground wire cable interface.

[0050] It should be noted that the insulating part includes an insulating handle 201, the top end of which is inserted and connected to the bottom end of the threaded rod 2.

[0051] Specifically, the insulating grip 201 is made of rubber, and the insertion point between the insulating grip 201 and the threaded rod 2 is fixed with glue.

[0052] Example 2: A grounding component applied to the grounding wire status monitor in Example 1;

[0053] Specifically, the grounding assembly includes: a grounding head 7, a wire 5, and a clamping bolt 6;

[0054] It should be noted that the grounding head 7 is used for grounding fixation. The bottom of the grounding head 7 is threadedly connected to a compression screw 701 for pressing the grounding terminal. The two ends of the wire 5 are respectively inserted and connected to the sides of the clamp 1 and the grounding head 7. The wire 5 is used for grounding conduction. The ends of multiple clamping bolts 6 are respectively inserted and connected to the connection between the wire 5, the clamp 1 and the grounding head 7.

[0055] Specifically, by rotating the extrusion screw 701, the grounding terminal is limited to the end of the extrusion screw 701 and the inner wall of the grounding head 7. The sides of the clamp 1 and the grounding head 7 are provided with threaded holes for the clamping bolt 6 to pass through. The clamping bolt 6 rotates to clamp the passage of the wire 5 through the clamp 1 and the passage of the wire 5 through the grounding head 7.

[0056] In actual use, a clamping assembly is provided in the inner cavity of the clamp 1. The pressure monitoring element 4, which is used to monitor the pressure on the cable, is locked to the end of the threaded rod 2 through the connecting part 8. The ground cable is pressure-limited on the opposite side of the pressure monitoring element 4 and the inner wall of the clamp 1. Compared with the bolt directly squeezing the pressure monitoring element 4 and the ground cable, the connecting part 8 in this design limits the monitoring part, avoiding the situation where the pressure monitoring element 4 is easily misaligned due to uneven force during the process of the bolt squeezing the ground cable through the pressure monitoring element 4.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grounding wire status monitor, characterized in that, include: Clamp (1); A clamping assembly is used for clamping and fixing the ground wire. The clamping assembly includes a plug-in part. The end of the plug-in part is sequentially inserted and connected to the side of the clamp (1). The end of the plug-in part and the inner cavity of the clamp (1) are provided with a monitoring part for monitoring the cable clamping force. The connection between the monitoring part and the plug-in part is provided with a connecting part (8) for locking the monitoring part. One end of the plug-in part is provided with an insulating part for gripping and rotating the plug-in part. A grounding component is disposed on the side of the clamp (1) and is used for grounding connection.

2. A grounding wire status monitor according to claim 1, characterized in that, The insertion part includes a threaded rod (2), the end of which is threadedly connected to the side of the chuck (1), and the connecting part (8) is provided at the end of the threaded rod (2).

3. A grounding wire status monitor according to claim 2, characterized in that, The monitoring unit includes: Pressure monitoring element (4), the pressure monitoring element (4) is disposed on the top of the connecting part (8), the pressure monitoring element (4) is used to compress the pressure of the cable; A pressure display (401) is provided, wherein the output end of the pressure monitoring element (4) is electrically connected to the input end of the pressure display (401), and the pressure display (401) is used to display cable extrusion pressure data.

4. A grounding wire status monitor according to claim 3, characterized in that, The connecting part (8) includes: A limiting post (801) is inserted into the end of the threaded rod (2) at one end; A reinforcing column (805) is provided at the bottom of the pressure monitoring element (4), and one end of the reinforcing column (805) away from the pressure monitoring element (4) is inserted and connected to the other end of the limiting column (801); Elastic inserts (804), a plurality of elastic inserts (804) are arranged around the bottom outer side of the pressure monitoring element (4), and the bottom end of the elastic inserts (804) is inserted and connected to the other end of the limiting post (801); Locking groove (8011), a plurality of said locking grooves (8011) are formed around the other end of the limiting post (801), said locking grooves (8011) are used for the insertion and snapping of the elastic insert (804); A protective component is provided on the outside of the limiting post (801) and is used for isolation and protection of the pressure monitoring element (4).

5. A grounding wire status monitor according to claim 4, characterized in that, The protective component includes: A grooved plate (3) is sleeved on the outside of the limiting post (801). The grooved plate (3) is used to isolate and protect the pressure monitoring element (4). A fixing ring (802) is sleeved on the outside of the limiting post (801) and located on the opposite side of the threaded rod (2) and the pressure groove plate (3); A fixing nut (803) is threaded on the outside of the limiting post (801) and located on the side of the pressure groove plate (3) away from the fixing ring (802). The fixing nut (803) is used to press and fix the pressure groove plate (3).

6. A grounding wire status monitor according to claim 1, characterized in that, The insulating part includes an insulating grip (201), the top end of which is inserted and connected to the bottom end of the threaded rod (2).

7. A grounding wire status monitor according to claim 1, characterized in that, The grounding component includes: Grounding head (7), the grounding head (7) is used for grounding fixation, and the bottom of the grounding head (7) is threadedly connected to a pressing screw (701) for pressing the grounding terminal; The conductor (5) has its two ends inserted and connected to the sides of the clamp (1) and the grounding head (7), respectively. The conductor (5) is used for grounding conduction. Clamping bolts (6), the ends of multiple clamping bolts (6) are respectively inserted and connected to the connection between the conductor (5) and the clamp (1) and the grounding head (7).

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