A detection box anti-loss structure for an online monitoring device for cable sheath grounding current.

Abstract

The present application relates to a kind of cable sheath ground loop current on-line monitoring device, specifically relates to a kind of cable sheath ground loop current on-line monitoring device's detection box anti-lost structure, including hinged connection box and lid, box is set on the side wall with through line hole, it is characterized in that, still include connecting rod, slider, screw and nut;Connecting rod one end is hinged in the inside of lid, other end is hinged with slider;Slider is slidably arranged in the sliding slot of box interior opening;Screw is connected on slider, nut is arranged on box, screw and nut are screwed together.Compared with prior art, the present application solves the problem that the bolt independently arranged in prior art is easily lost after being separated from nut, realizes the movable connection of screw (bolt) and box, sufficiently avoids the drop, loss of screw, and the structure is convenient for closing lid.

Description

Technical Field

[0001] This invention relates to an online monitoring device for cable sheath grounding current, specifically to an anti-loss structure for the detection box of the online monitoring device for cable sheath grounding current. Background Technology

[0002] The metallic sheath of a cable is a crucial component. When current flows through the cable, circulating current is generated in the metallic sheath. Poor insulation of the outer sheath, inadequate grounding, and incorrect grounding of the metallic sheath can all cause abnormal circulating currents, seriously threatening the operational safety of the cable. The method for predicting sheath circulating current involves installing a current sensor on the cable sheath grounding wire and connecting the current sensor to a monitoring device for data acquisition, analysis, and transmission.

[0003] Patent CN218865952U describes an online monitoring device for cable sheath grounding circulation current. By pulling the handle of the first limiting component, a spring is compressed, causing the limiting post to disengage from the first limiting hole in the door. This allows the door to open automatically under the action of the first torsion spring hinge, facilitating internal maintenance. This opening method is simple and convenient, requiring no tools and making maintenance relatively easy. However, if the handle is accidentally pressed, the door will open, necessitating additional bolts for securing it. However, the separate nut and bolt structure makes the bolts prone to loss after separation, wasting time searching for them.

[0004] Therefore, it is evident that further improvements are needed to the structure of the testing box to overcome the problem that the bolts used independently after opening are easily lost. Summary of the Invention

[0005] The purpose of this invention is to provide a detection box anti-loss structure for an online monitoring device for cable sheath grounding circulation current in order to solve at least one of the above-mentioned problems. This solves the problem that the independently set bolts in the prior art are easily lost after being separated from the nuts. The invention realizes the movable connection between the screw (bolt) and the box body, which fully avoids the screw falling off or being lost. Moreover, this structure facilitates the closing of the box cover.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A detection box anti-loss structure for an online monitoring device for cable sheath grounding current includes a box body and a box cover that are hinged together. The box body has a through hole on its side wall and also includes a connecting rod, a slider, a screw and a nut.

[0008] One end of the connecting rod is hinged to the inside of the box cover, and the other end is hinged to the slider;

[0009] The slider is slidably disposed in a groove opened inside the housing;

[0010] The screw is connected to the slider, and the nut is set on the housing. The screw and the nut are threaded together.

[0011] Preferably, the outer wall of the box is provided with a connecting lug, and the outer wall of the box cover is connected with a connecting shaft, and the connecting lug and the connecting shaft are hinged together.

[0012] Preferably, a pair of connecting ears and a connecting shaft are provided, symmetrically arranged with respect to the housing.

[0013] Preferably, the top of the box body is provided with a sealing groove, and the bottom of the box cover is provided with a sealing gasket, which is fitted into the sealing groove.

[0014] Preferably, the sealing groove is arranged circumferentially along the top of the box body, and the sealing gasket is arranged circumferentially along the bottom of the box cover.

[0015] Preferably, the box cover has a connecting shaft on its inner side wall, and the connecting rod is hinged to the box cover through the connecting shaft; the slider has an outer shaft, and the connecting rod is hinged to the slider through the outer shaft.

[0016] Preferably, the through hole is formed on the front and rear side walls of the housing, and the slide groove is formed on the left and right side walls of the housing.

[0017] Preferably, the nut is disposed on the front side wall of the housing, and the screw is positioned toward the nut.

[0018] Preferably, the slide, slider, and connecting rod are arranged symmetrically with respect to the housing.

[0019] Preferably, the slider is slidably disposed in the groove by means of a locking block connected to the side.

[0020] The working principle of this invention is as follows:

[0021] When the test box changes from the open state to the closed state, the box cover will push the connecting rod and further push the slider to slide along the slide groove. The screw set on the slider approaches the nut during the sliding process and eventually moves to pass through the side wall of the box. Then the nut is tightened on the screw, completing the locking of the box and the box cover.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By closing the lid of the testing box, the connecting rod pushes the slider to move. After the lid is closed, the screw on the slider will pass through the testing box body and then be fixed to the lid with a nut. Since the screw is directly connected to the slider, the problem of missing bolts caused by haphazard placement of fastening bolts in existing structures can be avoided.

[0024] 2. The inside of the test chamber is sealed by a sealing groove and a sealing gasket. Once the sealing gasket is inserted into the sealing groove, it can achieve a waterproof and sealing effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure when the detection box is closed;

[0026] Figure 2 This is a schematic diagram of the test box when it is opened;

[0027] Figure 3 This is a structural diagram of the box;

[0028] Figure 4 This is a schematic diagram of the box lid structure;

[0029] Figure 5 This is a schematic diagram of the slider's structure;

[0030] In the diagram: 1-box body; 2-box cover; 3-connecting rod; 4-slider; 5-screw; 6-nut; 101-connecting ear; 102-through hole; 103-sealing groove; 104-sliding groove; 201-sealing gasket; 202-connecting shaft; 203-connecting shaft; 401-block; 402-outer shaft. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] Example

[0033] A detection box anti-loss structure for an online monitoring device for cable sheath grounding circulating current, such as... Figure 1-5 As shown, the device includes a hinged box body 1 and a box cover 2. The box body 1 has a wire hole 102 on its side wall and also includes a connecting rod 3, a slider 4, a screw 5 and a nut 6.

[0034] One end of the connecting rod 3 is hinged to the inside of the box cover 2, and the other end is hinged to the slider 4;

[0035] The slider 4 is slidably disposed in the groove 104 opened inside the housing 1;

[0036] The screw 5 is connected to the slider 4, and the nut 6 is set on the housing 1. The screw 5 and the nut 6 are threaded together.

[0037] More specifically, in this embodiment:

[0038] The housing 1 of the testing box, as shown... Figure 3As shown, symmetrical through holes 102 are provided on the front and back side walls to allow cable lines to pass through; a sliding groove 104 extending along the length direction is provided at the bottom of the inner side wall of the left and right side walls for sliding assembly of the slider 4; through holes are provided at the bottom of both ends of the front side wall corresponding to the ends of the sliding groove 104 for assembling nuts 6 and allowing screws 5 to pass through; a pair of connecting ears 101 are provided symmetrically on the back side wall about the central axis, forming a hinged fit with the connecting shaft 202 of the cover 2, allowing the cover 2 to be rotated and opened on the upper part of the box body 1; a sealing groove 103 is provided circumferentially on the top surface of the box body 1 to accommodate the sealing gasket 201 and form a seal.

[0039] The lid 2 of the testing box, such as Figure 4 As shown, a pair of connecting shafts 202 are symmetrically arranged on the back side wall of the lid 2 about the central axis. The connecting shafts 202 and the connecting lugs 101 on the box body 1 form a hinged fit. Connecting shafts 203 are symmetrically arranged on the inner side walls of the left and right side walls of the lid 2. The connecting shafts 203 are used to rotate the connecting rod 3 to form a hinged structure. A sealing gasket 201 is circumferentially bonded and fixed on the bottom surface of the lid 2. The sealing gasket 201 matches the sealing groove 103 provided on the box body 1, so that the internal cavity is sealed after the lid 2 is closed on the box body 1.

[0040] The slider 4 of the detection box, as shown... Figure 5 As shown, an outer shaft 402 is provided on the outer side wall, which forms a hinged engagement with the connecting rod 3; a locking block 401 is provided on the inner side, which forms a sliding engagement with the sliding groove 104; and a screw 5 is connected to the front side wall.

[0041] The screw 5 and nut 6 can be coupled in various ways. For example, the screw 5 is fixed on the slider 4, and the outer surface of the nut 6 is provided with an annular groove for engaging with the housing 1 to restrict the horizontal movement of the nut 6. As the screw 5 moves with the slider 4, it is inserted into the nut 6. Under the drive of the thread, the horizontal movement of the screw 5 causes the nut 6 to rotate, allowing the screw 5 to be inserted smoothly, and thus the housing cover 2 to be closed smoothly. Alternatively, the nut 6 is fixed inside the housing 1, and the screw 5 is rotatably connected to the slider 4 through a shaft and bearing. After the screw 5 is inserted into the nut 6, as the housing cover 2 continues to close, the screw 5 rotates, and based on the threaded engagement, the screw 5 is smoothly screwed into the nut 6, completing the complete closing of the housing cover 2.

[0042] like Figure 1 and Figure 2As shown, the working principle and usage procedure of this testing box are as follows: By closing the cover 2 on the box body 1, the connecting rod 3 pushes the slider 4 to move along the slide groove 104. After the cover 2 on the box body 1 is closed, the screw 5 on the slider 4 will pass through the box body 1, and then be tightened and fixed with the nut 6, thus locking the box body 1 and the cover 2. Since the screw 5 is connected to the slider 4, this avoids the loss of bolts due to improper placement. The through hole 102 allows the wiring to enter; the connecting lug 101 allows the cover 2 to be installed; the slide groove 104 serves as the track for the slider 4; the sealing groove 103, in conjunction with the sealing gasket 201, seals the interior of the enclosure 1, achieving a waterproof seal when the sealing gasket 201 is inserted into the sealing groove 103; the cover 2 connects to the connecting lug 101 via the connecting shaft 202, allowing the cover 2 to rotate around the connecting shaft 202; the latch 401 on one side of the slider 4 allows the slider 4 to slide within the slide groove 104; and the outer shaft 402 connects to the connecting rod 3.

[0043] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A detection box anti-lost structure of a cable sheath grounding ring current online monitoring device, comprising a hingedly connected box body (1) and a box cover (2), a wire passing hole (102) is formed in the side wall of the box body (1), characterized in that, It also includes connecting rod (3), slider (4), screw rod (5) and nut (6); The connecting rod (3) is hinged to the inner side of the box cover (2) at one end, and is hinged to the slider (4) at the other end; The slider (4) is slidably arranged in the sliding groove (104) opened in the box body (1) through the clamping block (401) connected to the side; The screw rod (5) is connected to the slider (4), and the nut (6) is arranged on the box body (1), and the screw rod (5) and the nut (6) are threadedly matched.

2. The anti-lost structure of the detection box of the cable sheath ground circulating current online monitoring device according to claim 1, characterized in that, The outer wall of the box body (1) is provided with a connecting lug (101), and the outer wall of the box cover (2) is connected with a connecting shaft (202), and the connecting lug (101) and the connecting shaft (202) are hingedly matched.

3. The anti-lost structure of the detection box of the cable sheath ground circulating current online monitoring device according to claim 2, characterized in that, The connecting lug (101) and the connecting shaft (202) are respectively provided with a pair of symmetrically arranged box bodies (1).

4. The anti-lost structure of the detection box of the cable sheath ground circulating current online monitoring device according to claim 1, characterized in that, The top of the box body (1) is provided with a sealing groove (103), and the bottom of the box cover (2) is provided with a sealing gasket (201), and the sealing gasket (201) is embedded in the sealing groove (103).

5. The anti-lost structure of the detection box of the cable sheath ground circulating current online monitoring device according to claim 4, characterized in that, The sealing groove (103) is circumferentially arranged along the top of the box body (1), and the sealing gasket (201) is circumferentially arranged along the bottom of the box cover (2).

6. The anti-lost structure of the detection box of the cable sheath ground circulating current online monitoring device according to claim 1, characterized in that, The box cover (2) is provided with a connecting shaft (203) on the inner wall, and the connecting rod (3) is hinged to the box cover (2) through the connecting shaft (203); The outer shaft (402) is arranged on the slider (4), and the connecting rod (3) is hinged to the slider (4) through the outer shaft (402).

7. The anti-lost structure of the detection box of the cable sheath ground circulating current online monitoring device according to claim 1, characterized in that, The nut (6) is arranged on the front side wall of the box body (1), and the screw rod (5) is arranged towards the nut (6).

8. The anti-lost structure of the detection box of the cable sheath ground circulating current online monitoring device according to claim 1, characterized in that, The sliding groove (104), the slider (4) and the connecting rod (3) are symmetrically arranged with respect to the box body (1).

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