Anti-reverse power supply device capable of preventing wire from being exposed

Abstract

The utility model discloses an anti-reverse power supply device preventing wire exposure, comprising a fixing assembly used for lifting and bearing to prevent a cable from drooping, the top of the fixing assembly is provided with a connecting assembly used for being fixedly connected with an insulating cylinder at one side, and one side of the connecting assembly is provided with an adjusting assembly used for adjusting the wrapping length of the cable. The adjusting assembly comprises a first insulating cylinder, one end of the first insulating cylinder is fixedly provided with a first mounting piece, the first insulating cylinder is provided with six rotating shafts, and the rotating shafts are provided with adjusting screw rods. According to the utility model, the first insulating cylinder slides in the second insulating cylinder, so that the device can be suitable for most application scenes according to the exposed length of the wire, and the universality of the device is higher; the sealing gasket and the embedded groove are sealed and waterproof, and the position of the sealing gasket moves along with length adjustment, so that the sealing performance of the device is enhanced; and the cable is supported by the plugging support frame, so that sagging deformation of the cable caused by a long conveying distance is avoided, and the service life of the protection cylinder is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment technology, and in particular relates to a reverse power supply device that prevents exposed wires. Background Technology

[0002] Before conducting power grid maintenance, maintenance personnel must shut down the power supply system in the area where the line under maintenance is located and simultaneously implement reverse power supply protection for the line. To expedite maintenance, reverse power supply protection devices are typically installed on the cables. These devices protect the bare wire sections of the cables from external factors during non-maintenance periods and effectively address safety issues such as fire and electric shock. During maintenance, the reverse power supply protection device is removed, exposing the exposed wire sections for easier access by maintenance personnel.

[0003] The drawback of the existing technology is that it requires selecting the equipment specifications according to the different exposed lengths of the wires, and the distance between the insulation on both sides can only be installed if it is within a small specified error range, resulting in low versatility. Utility Model Content

[0004] This utility model addresses the problem of limited compatibility of existing devices by proposing the following technical solution:

[0005] A power supply device for preventing exposed wires and preventing cable sagging includes a fixing component for supporting the load and preventing the cable from sag. The top of the fixing component is provided with a connecting component for fixing and connecting an insulating cylinder on one side. The side of the connecting component is provided with an adjusting component for adjusting the cable sheath length.

[0006] The adjusting assembly includes a first insulating cylinder, a first mounting plate fixedly disposed at one end of the first insulating cylinder, six rotating shafts disposed on the first insulating cylinder, adjusting screws disposed on the rotating shafts, and two fastening nuts disposed on the adjusting screws.

[0007] The fixing component includes a fixing surface, four mounting holes are symmetrically opened on the fixing surface, two slots are symmetrically opened on one side of the fixing surface, a support frame is provided on the fixing surface near the slots, and a placement slot is fixedly provided on the support frame.

[0008] The connecting assembly includes a second insulating cylinder, a connecting piece is fixedly disposed at one end of the second insulating cylinder, and six grooves are evenly formed around the circumference of the connecting piece. A second mounting piece is fixedly disposed at the end of the second insulating cylinder away from the connecting piece.

[0009] As a preferred embodiment of the above technical solution, the support frame is slidably connected to the inner wall of the slot via two T-shaped sliders.

[0010] During installation, the slider slides into the slot to connect the support frame to the fixed surface, and the cable is placed in the placement slot, making the installation structure more compact.

[0011] As a preferred embodiment of the above technical solution, the rotating shaft is connected to the middle of the first insulating cylinder via a bearing, and the adjusting screw and the groove are distributed in a position and size corresponding to each other.

[0012] During the movement of the first insulating cylinder toward the second insulating cylinder, the adjusting screw is inserted into the groove, and the fastening nut abuts against the connecting piece, which serves as a limit and ensures that the first insulating cylinder will not detach. The position of the nut depends on the exposed length of the wire.

[0013] As a preferred embodiment of the above technical solution, the first insulating cylinder has an embedding groove at the end away from the first mounting plate, and a sealing gasket is provided in the embedding groove.

[0014] The outer wall of the first insulating cylinder fits against the inner wall of the second insulating cylinder. The sealing gasket embedded in the groove is squeezed to fill the gap between the insulating cylinders, achieving a good sealing effect and preventing rainwater from seeping into the bare wire.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the first insulating cylinder slides between the second insulating cylinder, which can be applied to most application scenarios according to the exposed length of the wire, thus improving the flexibility of the device and making it more versatile;

[0017] 2. In this utility model, the sealing gasket and the embedded groove are used to seal and waterproof the device. The position of the sealing gasket moves with the length adjustment, which enhances the sealing performance of the device.

[0018] 3. In this utility model, the cable is supported by a plug-in support frame, which avoids cable sagging and deformation caused by long conveying distance and extends the service life of the protective cylinder. Attached Figure Description

[0019] Figure 1 The diagram shown is a schematic representation of the overall structure of the device;

[0020] Figure 2 The diagram shown is a structural schematic of the fixed component;

[0021] Figure 3 The diagram shown is a structural schematic of the adjustment component;

[0022] Figure 4 The diagram shown is a structural schematic of the connecting components.

[0023] In the attached drawings, the following are the reference numerals: 1. Fixing component; 101. Fixing surface; 102. Mounting hole; 103. Support frame; 104. Placement groove; 105. Slider; 106. Slot; 2. Adjusting component; 201. First insulating cylinder; 202. First mounting plate; 203. Rotating shaft; 204. Adjusting screw; 205. Fastening nut; 206. Embedded groove; 207. Sealing gasket; 3. Connecting component; 301. Second insulating cylinder; 302. Connecting plate; 303. Groove; 304. Second mounting plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0025] Figures 1-4 A power supply device for preventing exposed wires and preventing cable sagging includes a fixing component 1 for supporting the load and preventing the cable from sag. The top of the fixing component 1 is provided with a connecting component 3 for fixing and connecting an insulating cylinder on one side. The side of the connecting component 3 is provided with an adjusting component 2 for adjusting the cable sheath length.

[0026] Figure 2 In the middle, the fixing component 1 includes a fixing surface 101, four mounting holes 102 are symmetrically opened on the fixing surface 101, two slots 106 are symmetrically opened on one side of the fixing surface 101, a support frame 103 is arranged on the fixing surface 101 near the slots 106, a placement groove 104 is fixedly arranged on the support frame 103, and the support frame 103 is slidably connected to the inner wall of the slots 106 through two T-shaped sliders 105.

[0027] Bolts are passed through mounting holes 102 to fix the fixing surface 101 to the wall, and slider 105 is inserted into slot 106 to complete the fixing of support frame 103 and placement slot 104.

[0028] Figure 3 In the first insulating cylinder 2, the adjusting component 2 includes a first insulating cylinder 201. A first mounting plate 202 is fixedly installed at one end of the first insulating cylinder 201. Six rotating shafts 203 are installed on the first insulating cylinder 201. Adjusting screws 204 are installed on the rotating shafts 203. Two fastening nuts 205 are installed on the adjusting screws 204. The rotating shafts 203 are connected to the middle of the first insulating cylinder 201 through bearings. The distribution position and size of the adjusting screws 204 and the grooves 303 are corresponding. An embedding groove 206 is opened at the end of the first insulating cylinder 201 away from the first mounting plate 202. A sealing gasket 207 is installed in the embedding groove 206.

[0029] Close the two insulating cylinders onto the exposed wires. Screw a fastening nut 205 onto each adjusting screw 204. Insert the first insulating cylinder 201 into the second insulating cylinder 301. Rotate the adjusting screw 204 into the groove 303 to adjust the positional relationship between the first insulating cylinder 201 and the second insulating cylinder 301 so that the first mounting plate 202 and the second mounting plate 304 can simultaneously abut against the wire protective shells on both sides. Then screw a fastening nut 205 into the head of the adjusting screw 204 and tighten all the fastening nuts 205 so that both sides of the connecting plate 302 are locked by the fastening nuts 205. The sealing gasket 207 embedded in the groove 206 fills the gap between the first insulating cylinder 201 and the second insulating cylinder 301.

[0030] Figure 4 In the middle, the connecting component 3 includes a second insulating cylinder 301, a connecting piece 302 is fixedly provided at one end of the second insulating cylinder 301, six grooves 303 are evenly opened on the circumference of the connecting piece 302, and a second mounting piece 304 is fixedly provided at the end of the second insulating cylinder 301 away from the connecting piece 302.

[0031] The first insulating cylinder 201 and the second insulating cylinder 301 are fixedly connected by rotating shaft 203 and connecting piece 302. Then, the wire protection shells on both sides are locked to the first mounting piece 202 and the second mounting piece 304 respectively by bolts, thus completing the installation of the device.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A power supply device for preventing exposed wires and preventing cable sagging, comprising a fixing component (1) for supporting the load and preventing the cable from sag, characterized in that: The top of the fixing component (1) is provided with a connecting component (3) for fixing and connecting one side of the insulating cylinder, and the side of the connecting component (3) is provided with an adjusting component (2) for adjusting the cable sheath length. The adjustment assembly (2) includes a first insulating cylinder (201), a first mounting plate (202) is fixedly provided at one end of the first insulating cylinder (201), six rotating shafts (203) are provided on the first insulating cylinder (201), an adjusting screw (204) is provided on the rotating shaft (203), and two fastening nuts (205) are provided on the adjusting screw (204).

2. The anti-backflow power supply device for preventing exposed wires according to claim 1, characterized in that: The fixing component (1) includes a fixing surface (101), four mounting holes (102) are symmetrically opened on the fixing surface (101), two slots (106) are symmetrically opened on one side of the fixing surface (101), a support frame (103) is provided on the fixing surface (101) near the slots (106), and a placement slot (104) is fixedly provided on the support frame (103).

3. The anti-backflow power supply device for preventing exposed wires according to claim 1, characterized in that: The connecting assembly (3) includes a second insulating cylinder (301), a connecting piece (302) is fixedly provided at one end of the second insulating cylinder (301), six grooves (303) are evenly provided on the circumference of the connecting piece (302), and a second mounting piece (304) is fixedly provided at the end of the second insulating cylinder (301) away from the connecting piece (302).

4. The anti-backflow power supply device for preventing exposed wires according to claim 2, characterized in that: The support frame (103) is slidably connected to the inner wall of the slot (106) via two T-shaped sliders (105).

5. The anti-backflow power supply device for preventing exposed wires according to claim 3, characterized in that: The rotating shaft (203) is connected to the middle of the first insulating cylinder (201) via a bearing, and the adjusting screw (204) and the groove (303) are distributed in a position and size corresponding to each other.

6. The anti-backflow power supply device for preventing exposed wires according to claim 1, characterized in that: The first insulating cylinder (201) has an embedding groove (206) at the end away from the first mounting plate (202), and a sealing gasket (207) is provided in the embedding groove (206).

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