A cable insulation monitoring device

Abstract

The utility model relates to monitoring device technical field, a kind of cable insulation monitoring device, including transmitter pedestal, turnover seat, turnover seat is rotatably connected on transmitter pedestal, fixed structure is equipped between transmitter pedestal and turnover seat, fixed structure includes fixed plate, cooperation plate, fixed plate and cooperation plate mutually abut, and fixed hole is set on fixed plate and is passed through, fixed piece is equipped in fixed hole, fixed piece and fixed hole slip connection, and self-locking assembly is equipped between fixed piece and fixed plate, cooperation plate is equipped with the cooperation hole for the fixed piece embedding. Through the above technical scheme, the fixed piece installation operation cumbersome problem between each module in prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, and in particular to a cable insulation monitoring device. Background Technology

[0002] Cable insulation monitoring is an important means to ensure the safe operation of power cables. By monitoring the insulation status of cables in real time or periodically, defects such as insulation deterioration, partial discharge, and moisture can be detected in advance, thus avoiding sudden failures.

[0003] Currently, cable insulation monitoring systems typically include monitoring devices such as through-hole AC current transmitters and leakage current transmitters. These devices usually have monitoring holes on their surfaces for cables to pass through. After the cable and the monitoring hole are engaged, the cable's insulation condition is indirectly assessed by monitoring the cable's leakage current or unbalanced current. Furthermore, to further facilitate cable routing, existing transmitters are often modularly designed, allowing for the disassembly of the monitoring holes. The modules are hinged together, so that when it is necessary to place a cable into the monitoring hole, the hole can be opened by flipping the module, enabling rapid cable installation.

[0004] However, the modules of this type of modular transmitter are usually fixed together by bolts, which means that each time the cable is installed or removed, tools (such as wrenches) are needed to tighten or loosen the bolts, which is cumbersome and can easily cause unnecessary waste of time. Moreover, when the bolts are small (small diameter and short axial length), they are also easy to fall off or be lost when disassembling them. Utility Model Content

[0005] The main purpose of this utility model is to provide a cable insulation monitoring device, which aims to solve the problem of cumbersome installation and operation of fixing parts between modules in related technologies.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A cable insulation monitoring device includes a transmitter base and a flip-top base. The flip-top base is rotatably connected to the transmitter base. A fixing structure is provided between the transmitter base and the flip-top base. The fixing structure includes a fixing plate and a mating plate. The fixing plate and the mating plate abut against each other, and a fixing hole is provided through the fixing plate. A fixing member is provided in the fixing hole. The fixing member is slidably connected to the fixing hole, and a self-locking component is provided between the fixing member and the fixing plate. The mating plate is provided with a mating hole for the fixing member to be inserted.

[0008] Furthermore, the self-locking assembly includes a self-locking block, a self-locking groove, and a first elastic member for embedding the self-locking block into the self-locking groove. The self-locking block is slidably connected to a fixing plate, and the self-locking groove is formed on the fixing member.

[0009] Furthermore, the projection surfaces of the fastener, the fixing hole, and the mating hole in the axial direction of the fixing hole are all polygonal structures.

[0010] Furthermore, the side of the self-locking groove closest to the fixing plate is flush with the fixing plate.

[0011] Furthermore, the end of the self-locking block that is close to the fixing member is provided with an avoidance linkage inclined surface; the width of the end of the self-locking block that is close to the fixing member is smaller than the width of the end of the self-locking block that is far away from the fixing member.

[0012] Furthermore, the fixing plate is provided with a slide for limiting the deformation direction of the first elastic element, and the self-locking block is slidably connected in the slide.

[0013] Furthermore, a second elastic element is provided between the mating holes, and the end of the fixing member close to the mating hole abuts against the second elastic element.

[0014] Furthermore, the opening diameter of the fixing hole at the end close to the self-locking component is smaller than the diameter of the fixing member at the end close to the mating hole.

[0015] Furthermore, the fastener is provided with an expansion plate.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] This utility model mainly includes a transmitter base and a flip-over base. The flip-over base is flipped and installed on the transmitter base, and a fixing structure is provided between the two to fix them together, so as to prevent the flip-over base from being flipped under force when it is not flipped, which would cause the cable located between the flip-over base and the transmitter base (in the monitoring hole) to come out and affect subsequent monitoring work.

[0018] The fixed structure includes a fixed plate and a mating plate, which are fixedly mounted on the tilting seat and the transmitter base, respectively. When the monitoring hole forms a closed loop, the fixed plate and the mating plate abut against each other. Simultaneously, a fixing hole is provided through the fixed plate, and a fixing element is installed in the fixing hole. The fixing element is slidably connected to the fixing hole. Correspondingly, a mating hole is provided on the mating plate for the fixing element to be inserted. Thus, by manually pressing the fixing element, it enters the mating hole, creating a hole-shaft engagement, thereby constraining the subsequent tilting movement of the tilting seat.

[0019] Furthermore, a self-locking component is provided between the fastener and the fixing plate, which enables the positional relationship between the fastener, the fixing plate, and the mating plate to be fixed after the fastener is embedded in the mating hole. Ultimately, the fixing of each module of this utility model can be completed without external tools, effectively solving the problem of cumbersome fastener installation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0022] Figure 2 This is a top view of this embodiment;

[0023] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0024] Figure 4 This is a cross-sectional view of this embodiment;

[0025] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0026] Explanation of icon numbers:

[0027] 1. Transmitter base; 11. Mating plate; 111. Mating hole; 2. Tilting seat; 21. Fixing plate; 211. Fixing hole; 212. Slide rail; 3. Fixing component; 31. Expansion plate; 4. Self-locking assembly; 41. Self-locking block; 411. Avoidance linkage inclined surface; 42. Self-locking groove; 43. First elastic element; 5. Second elastic element.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] like Figure 1 As shown in the figure, this embodiment proposes a cable insulation monitoring device, which mainly includes a transmitter base 1 and a flip base 2. The flip base 2 is rotatably connected to the transmitter base 1, that is, the flip base 2 can flip with the connection point between it and the transmitter base 1 as the center of the flip circle. The flip base 2 and the transmitter base 1 are provided with holes for mutual cooperation. When the flip base 2 is flipped to a specified angle, the two holes cooperate to form a closed loop monitoring hole.

[0031] A fixing structure is provided between the transmitter base 1 and the flip base 2. The flip base 2 is fixed by the presence of the fixing structure, so as to prevent the flip base 2 from flipping due to accidental force when it is not needed, which would damage the structure of the monitoring hole and cause the cable to come out from between the transmitter base 1 and the flip base 2, affecting subsequent monitoring work.

[0032] like Figures 2-5 As shown, the fixing structure mainly includes a fixing plate 21 and a mating plate 11. The fixing plate 21 and the mating plate 11 are respectively fixed on the flip base 2 and the transmitter base 1. In this way, after the fixing plate 21 and the mating plate 11 are fixed to each other, the flip base 2 and the transmitter base 1 can be fixed.

[0033] When it is necessary to fix the flip base 2, the fixing plate 21 and the mating plate 11 abut against each other, and the fixing plate 21 is provided with a fixing hole 211 through it. The fixing hole 211 is provided with a fixing member 3. The fixing member 3 is slidably connected to the fixing hole 211. The mating plate 11 is provided with a mating hole 111 for the fixing member 3 to be inserted. In this way, by sliding the fixing member 3, the fixing member 3 is inserted into the mating hole 111, so that a hole-shaft mating relationship is formed between the fixing member 3 and the mating hole 111, and a corresponding constraint effect is brought to the fixing member 3 and the mating plate 11, thereby restricting the flipping movement of the flip base 2 (fixing plate 21).

[0034] Meanwhile, a self-locking component 4 is provided between the fixing component 3 and the fixing plate 21. When the fixing component 3 moves to the designated position, the self-locking component 4 will be triggered, so that the positional relationship between the fixing component 3, the fixing plate 21, and the mating plate 11 is fixed. Ultimately, this embodiment can complete the fixing between each module (the flip seat 2 and the transmitter base 1) without the aid of external tools, effectively solving the problem of cumbersome installation of the fixing component.

[0035] Specifically, the self-locking assembly 4 includes a self-locking block 41, a self-locking groove 42, and a first elastic member 43 for embedding the self-locking block 41 into the self-locking groove 42. The self-locking groove 42 is formed on the fixing member 3. The self-locking block 41 is slidably connected to the fixing plate 21. That is, with the help of the elastic force of the first elastic member 43, the self-locking block 41 slides on the fixing plate 21 and finally embeds into the self-locking groove 42, thereby restricting the movement of the fixing member 3 and enabling the self-locking assembly 4 to complete the fixing work of the fixing member 3. Correspondingly, an elastic member carrier plate is fixedly provided on the fixing plate 21. The two ends of the first elastic member 43 are respectively fixedly connected to the elastic member carrier plate and the self-locking block 41 to ensure that the first elastic member 43 can stably push the self-locking block 41 to move.

[0036] Furthermore, the fixing plate 21 is provided with a slide 212 for limiting the deformation direction of the first elastic member 43. Specifically, the fixing plate 21 is provided with baffles on both sides of the self-locking block 41, and the gap between adjacent baffles forms a slide 212. The self-locking block 41 is slidably connected in the slide 212. Through the cooperation between the self-locking block 41 and the slide 212, the sliding direction of the self-locking block 41 is effectively limited, thereby indirectly limiting the deformation direction of the first elastic member 43, effectively preventing the first elastic member 43 from bending sideways, and ensuring that the first elastic member 43 can deform stably and effectively.

[0037] Preferably, the self-locking components 4 are symmetrically and evenly distributed around the fixing member 3, that is, there are at least two self-locking blocks 41, self-locking grooves 42, and first elastic members 43, so as to ensure that the fixing force of the self-locking components 4 acting on the fixing member 3 can be evenly distributed on the fixing member 3.

[0038] Furthermore, the projection surfaces of the fixing member 3, the fixing hole 211, and the mating hole 111 in the axial direction of the fixing hole 211 are all polygonal structures. In this way, the rotational movement of the fixing member 3 in the fixing hole 211 can be effectively prevented, which would cause the self-locking groove 42 on the fixing member 3 to deviate from the movement trajectory of the self-locking block 41, thus improving the stability of the fit between the fixing member 3 and the self-locking assembly 4.

[0039] The self-locking groove 42 is flush with the side of the fixing plate 21. At the same time, the length of the self-locking block 41 in the deformation direction of the first elastic member 43 is greater than the groove depth of the self-locking groove 42, so that the self-locking block 41 can simultaneously abut against the fixing plate 21 and the groove wall of the self-locking groove 42, thereby strengthening the fixing effect of the self-locking block 41 on the fixing member 3.

[0040] Furthermore, to prevent manual adjustment of the self-locking block 41 during the pressing of the fixing member 3, the end of the self-locking block 41 close to the fixing member 3 is provided with an avoidance linkage inclined surface 411. That is, the width of the end of the self-locking block 41 close to the fixing member 3 is smaller than the width of the end of the self-locking block 41 away from the fixing member 3. In this way, when the fixing member 3 is pressed down, the fixing member 3 changes the direction of the force acting on the self-locking block 41 by contacting the avoidance linkage inclined surface 411, so that the self-locking block 41 can move away from the fixing member 3 until the self-locking groove 42 on the fixing member 3 matches the self-locking block 41. Under the action of the first elastic member 43, the self-locking block 41 is embedded in the self-locking groove 42, thereby fixing the fixing member 3. This allows the self-locking block 41 to automatically avoid the fixing member 3 when the flip seat 2 (fixing plate 21) and the transmitter base 1 (mating plate 11) are fixed by the fixing member 3, which facilitates the use of this embodiment.

[0041] In order to quickly disengage the fixing member 3 from the mating hole 111 when the fixing effect of the self-locking component 4 on the fixing member 3 is canceled (by manually pushing the self-locking block 41), the fixing member 3 is provided with a second elastic member 5 between the mating holes 111. The end of the fixing member 3 close to the mating hole 111 abuts against the second elastic member 5. That is, when the self-locking block 41 is located in the self-locking groove 42, the fixing member 3 presses the second elastic member 5, causing the second elastic member 5 to deform and accumulate elastic potential energy. Subsequently, when the self-locking block 41 disengages from the self-locking groove 42, the second elastic member 5 begins to recover, and the previously accumulated elastic potential energy begins to be released, pushing the fixing member 3 out of the mating hole 111 and into the fixing hole 211, thereby quickly canceling the fixing effect of the fixing member 3 on the flip seat 2 and the transmitter base 1.

[0042] Correspondingly, the length of the second elastic element 5 that has not undergone deformation is less than or equal to the axial length of the mating hole 111, so as to avoid the second elastic element 5 returning to its original shape interfering with the abutment fit between the fixed plate 21 and the mating plate 11.

[0043] Meanwhile, in order to prevent the second elastic element 5 from directly ejecting the fixing element 3 from the fixing hole 211, the opening diameter of the fixing hole 211 at the end close to the self-locking component 4 is smaller than the diameter of the fixing element 3 at the end close to the mating hole 111. Specifically, the fixing hole 211 has a stepped hole structure, and the longitudinal section of the fixing element 3 is an inverted "T" shaped structure, thereby effectively limiting the movement distance of the fixing element 3.

[0044] Furthermore, the fastener 3 is provided with an expansion plate 31. The presence of the expansion plate 31 not only makes it convenient for the staff to press the fastener 3 (effectively increasing the contact area between the staff and the fastener 3 when pressing the fastener 3), but also prevents the fastener 3 from detaching from the flip seat 2 during the flipping process, effectively ensuring the integrity and stability of the overall structure of this embodiment.

[0045] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cable insulation monitoring device, comprising a transmitter base (1) and a flip-top (2), wherein the flip-top (2) is rotatably connected to the transmitter base (1), and a fixing structure is provided between the transmitter base (1) and the flip-top (2), characterized in that, The fixing structure includes a fixing plate (21) and a mating plate (11). The fixing plate (21) and the mating plate (11) abut against each other, and a fixing hole (211) is provided through the fixing plate (211). A fixing member (3) is provided in the fixing hole (211). The fixing member (3) is slidably connected to the fixing hole (211), and a self-locking component (4) is provided between the fixing member (3) and the fixing plate (21). The mating plate (11) is provided with a mating hole (111) for the fixing member (3) to be inserted.

2. The cable insulation monitoring device according to claim 1, characterized in that, The self-locking assembly (4) includes a self-locking block (41), a self-locking groove (42), and a first elastic member (43) for embedding the self-locking block (41) into the self-locking groove (42). The self-locking block (41) is slidably connected to the fixing plate (21), and the self-locking groove (42) is formed on the fixing member (3).

3. The cable insulation monitoring device according to claim 2, characterized in that, The projection surfaces of the fixing member (3), fixing hole (211), and mating hole (111) in the axial direction of the fixing hole (211) are all polygonal structures.

4. The cable insulation monitoring device according to claim 2, characterized in that, The self-locking groove (42) is flush with the side of the fixing plate (21) close to the fixing plate (21).

5. The cable insulation monitoring device according to claim 2, characterized in that, The self-locking block (41) has an avoidance linkage inclined surface (411) at one end close to the fixing member (3); The width of the end of the self-locking block (41) close to the fixing member (3) is smaller than the width of the end of the self-locking block (41) away from the fixing member (3).

6. The cable insulation monitoring device according to claim 2, characterized in that, The fixed plate (21) is provided with a slide (212) for limiting the deformation direction of the first elastic element (43), and the self-locking block (41) is slidably connected in the slide (212).

7. The cable insulation monitoring device according to any one of claims 2 to 6, characterized in that, A second elastic element (5) is provided between the mating holes (111), and the end of the fixing element (3) close to the mating hole (111) abuts against the second elastic element (5).

8. The cable insulation monitoring device according to claim 7, characterized in that, The opening diameter of the fixing hole (211) near the end of the self-locking component (4) is smaller than the diameter of the fixing member (3) near the mating hole (111).

9. The cable insulation monitoring device according to claim 7, characterized in that, The fastener (3) is provided with an expansion plate (31).

Images