Lead short circuit prevention device for distribution box

Abstract

The invention provides a lead short circuit prevention device for a distribution box. The lead short circuit prevention device comprises four insulating protective sleeves and a connecting plate, four strip-shaped holes are formed in the connecting plate, and each strip-shaped hole is connected with an insulating protective sleeve in a sliding manner; a locking bolt is arranged between the strip-shaped hole and the insulating protective sleeve; each insulating protective sleeve is provided with a pressing mechanism; the insulation protection sleeve is sleeved on a distribution box cable, and the insulation protection sleeve and the cable are mutually pressed and fixed through the pressing and holding mechanism. According to the invention, the insulation protection sleeve sleeves the distribution box cable and is fixed through the pressing mechanism, so that direct contact between different phase lines is effectively isolated, and the risk of short circuit is reduced. And extra insulation wrapping is not needed when the lead wire is dismounted or mounted every time, so that the risk of electric shock caused by improper operation is reduced. The color distinguishing design enables the phase line identification to be more visual, reduces the possibility of misoperation, and improves the working efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution maintenance, and in particular relates to a lead short-circuit prevention device for a power distribution box. Background Art

[0002] The leads in the distribution box, specifically the A, B, C and N phases of the three-phase electricity, are often too close to each other during the layout and connection process due to factors such as space limitations, improper cable layout or external forces, which increases the risk of short circuits. Short circuits may not only damage the distribution box and connected electrical equipment, but may also cause serious accidents such as fires, posing a threat to personnel safety.

[0003] In the prior art, the insulation requirements are not fully considered when arranging the leads in the distribution box, resulting in the leads being too close or the insulation layer being damaged, increasing the risk of short circuits. Distribution boxes of different specifications and models differ in lead arrangement and protection, but existing protection measures often cannot be effectively adjusted and are difficult to meet the needs of all distribution boxes. Summary of the invention

[0004] The invention provides a device for preventing lead short circuit of a distribution box, which is easy to operate, install and use.

[0005] The device includes: four insulating protective sleeves and connecting plates; The connecting plate is provided with four strip holes, each of which is slidably connected to an insulating protective sleeve; A locking bolt is provided between the strip hole and the insulating protective sleeve; A pressing mechanism is provided on each insulating protective sleeve; The insulating protective sleeve is arranged on the cable of the distribution box, and the insulating protective sleeve and the cable are pressed and fixed to each other through a pressing mechanism.

[0006] Preferably, a spacing is provided between the four strip holes.

[0007] Preferably, the first insulating protective sleeve is mounted on phase A of three-phase electricity, the second insulating protective sleeve is mounted on phase B of three-phase electricity, the third insulating protective sleeve is mounted on phase C of three-phase electricity, and the fourth insulating protective sleeve is mounted on phase N.

[0008] Preferably, the four insulating protective sleeves are provided in different colors.

[0009] Preferably, the insulating protective sleeve is provided with an opening, and is sleeved on the cable of the distribution box through the opening.

[0010] Preferably, the first pressing plate is arranged on the inner side of the insulating protective sleeve, and the holding bolt passes through the outside of the insulating protective sleeve; The second end of the holding bolt is threadedly connected to a second pressing plate, and a spring is arranged between the second pressing plate and the first pressing plate.

[0011] Preferably, the locking bolt and the pressing mechanism are both made of insulating materials.

[0012] Preferably, a through hole is provided on the insulating protective sleeve, and a locking bolt passes through the through hole and the strip hole to fix the insulating protective sleeve to the connecting plate.

[0013] The through holes provided in the insulating protective sleeve are vertical strip holes, and the vertical strip holes can enable the insulating protective sleeve to slide up and down on the connecting plate.

[0014] The insulating protective sleeve is also provided with fixing bolts, which can pass through the insulating protective sleeve and be connected to the outside of the distribution box cable.

[0015] It can be seen from the above technical solutions that the present invention has the following advantages: The distribution box anti-lead short-circuit device provided by the present application has four independent insulating protective sleeves, each corresponding to a different phase line (A, B, C, N). This modular design is not only convenient for installation and disassembly, but also convenient for replacing damaged parts separately, which is convenient for use. The sliding connection between the strip hole and the insulating protective sleeve of the present application is combined with the locking bolt, so that the insulating protective sleeve can be adjusted according to the actual position of the cable and firmly fixed on the connecting plate, avoiding loosening or falling off due to cable movement.

[0016] The pressing mechanism on the insulating protective sleeve of the present application can ensure a close fit between the protective sleeve and the cable, thereby enhancing the insulation effect and preventing the risk of short circuit caused by poor contact or excessive gap.

[0017] The distribution box lead short-circuit protection device is based on insulating protective covers of different colors, which facilitates quick identification of each phase lead, reduces the risk of misoperation and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the lead short-circuit protection device for the distribution box; Figure 2 It is a schematic diagram of an embodiment of a lead short-circuit protection device for a distribution box. DETAILED DESCRIPTION

[0020] The following is a specific implementation of the lead short circuit protection device for the distribution box provided by the present application, and various embodiments of the present disclosure will be described in more detail below. The present disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but the present disclosure should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present disclosure.

[0021] In the distribution box lead short circuit protection device, the terms "include" or "may include" that can be used in various embodiments of the present disclosure indicate the existence of the disclosed functions, operations or elements, and do not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present disclosure, the terms "include", "have" and their cognates are only intended to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0022] In various embodiments of the present disclosure, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0023] The expressions (such as "first", "second", etc.) used in the various embodiments of the present disclosure may modify the various constituent elements in the various embodiments, but may not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0024] It should be noted that if it is described that one component element is “connected” to another component element, the first component element may be directly connected to the second component element, and a third component element may be “connected” between the first component element and the second component element. Conversely, when one component element is “directly connected” to another component element, it can be understood that there is no third component element between the first component element and the second component element.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0026] See also Figures 1 to 2 The figure shows a schematic diagram of a device for preventing short circuit of leads in a distribution box in a specific embodiment, the device comprises: four insulating protective sleeves and a connecting plate 5; the insulating protective sleeve is provided with an opening, and is set on the cable of the distribution box through the opening.

[0027] The connecting plate 5 is provided with four strip holes 6 , each of which is slidably connected to an insulating protective sleeve; a locking bolt 7 is provided between the strip hole 6 and the insulating protective sleeve.

[0028] Exemplarily, a through hole is provided on the insulating protective sleeve, and the locking bolt 7 passes through the through hole and the strip hole 6 to fix the insulating protective sleeve to the connecting plate 5 .

[0029] The through holes formed in the insulating protective sleeve are vertical strip holes, and the vertical strip holes can enable the insulating protective sleeve to move up and down on the connecting plate 5 .

[0030] The insulating protective sleeve of this embodiment is also provided with a fixing bolt 12, which can pass through the insulating protective sleeve and be connected to the outside of the distribution box cable. The locking bolt 7 and the fixing bolt 12 can both be insulating bolts.

[0031] In this embodiment, a pressing mechanism is provided on each insulating protective sleeve; the insulating protective sleeve is sleeved on the cable of the distribution box, and the insulating protective sleeve and the cable are pressed and fixed to each other by the pressing mechanism.

[0032] The pressing mechanism of this embodiment is provided with a pressing bolt 8, and the first end of the pressing bolt 8 is fixedly connected to the first pressing plate 9; the first pressing plate 9 is arranged on the inner side of the insulating protective sleeve, and the pressing bolt 8 passes through the outside of the insulating protective sleeve; the second end of the pressing bolt 8 is threadedly connected to the second pressing plate 10, and a spring 11 is arranged between the second pressing plate and the first pressing plate.

[0033] In an exemplary embodiment, a spacing is provided between the four strip holes 6 , and the spacing can be set according to the spacing between the cables in the distribution box, and can also be set according to the actual usage scenario.

[0034] Optionally, the first insulating protective sleeve 1 is set on phase A of three-phase electricity, the second insulating protective sleeve 2 is set on phase B of three-phase electricity, the third insulating protective sleeve 3 is set on phase C of three-phase electricity, and the fourth insulating protective sleeve 4 is set on phase N.

[0035] The four insulating protective sleeves of this embodiment are set in different colors. The insulating protective sleeves of different colors facilitate rapid identification of each phase lead, reduce the risk of misoperation, and improve work efficiency.

[0036] Optionally, the locking bolt 7 and the pressing mechanism are both made of insulating materials.

[0037] In some embodiments, the device for preventing short circuit of lead wires in distribution boxes can be used in complex industrial environments. The device can effectively reduce downtime and accident risks caused by poor lead wire management. It can also be used in places that require a large amount of power supply, such as shopping malls and office buildings. By putting the insulating protective sleeve on the distribution box cable and fixing it with a pressing mechanism, the direct contact between different phase lines is effectively isolated, reducing the risk of short circuit. In addition, there is no need to perform additional insulation wrapping every time the lead wire is removed or installed, reducing the risk of electric shock caused by improper operation.

[0038] The device ensures a tight fit between the insulating protective sleeve and the cable by combining the locking bolt 7 and the pressing mechanism, and is not easy to loosen or fall off.

[0039] The installation method of the lead short circuit prevention device of this embodiment can be installed in the following manner: Check the equipment: ensure that all components of the lead short circuit prevention device are intact, including the insulating protective sleeve, the connecting plate 5, the locking bolt 7 and the pressing mechanism.

[0040] Accurately measure the cables in the distribution box that need to be equipped with protective sleeves to determine the length and number of insulating protective sleeves required. Prepare the tools required during the installation process, such as screwdrivers, wrenches, pliers, etc.

[0041] Fix the connecting plate 5. According to the internal structure and spatial layout of the distribution box, select a suitable position to fix the connecting plate 5. Use open foot bolts (expansion bolts) or other fixing methods to firmly install the connecting plate 5 inside the distribution box.

[0042] Put the insulating sleeve on the cable of the distribution box, and ensure that the sleeve is in the correct position and does not affect the normal connection of the cable. Slide the insulating sleeve to the predetermined position through the strip hole 6 on the connecting plate 5, and fix it on the connecting plate 5 with the locking bolt 7. Pay attention to maintaining the spacing between the four insulating sleeves to ensure a constant distance between phases.

[0043] Use the pressing mechanism to press the insulating sleeve and the cable together to ensure that the sleeve and the cable fit tightly without looseness or gaps. Adjust the position and angle of the insulating sleeve as needed to ensure that it can fully play its protective role.

[0044] After installation, conduct a comprehensive inspection of the lead short circuit protection device to ensure that each component is installed correctly, firmly and reliably. Conduct electrical tests to verify whether the insulation performance and short circuit protection effect of the device meet the requirements.

[0045] The modular design of the lead short circuit protection device for the distribution box makes installation, removal and replacement of leads faster and more convenient, saving maintenance time. The color-differentiated design makes phase line identification more intuitive, reduces the possibility of misoperation, and further improves work efficiency.

[0046] It should be understood that when an element or layer is referred to as being "on", "connected" or "coupled" to another element or layer, it may be directly on, directly connected or coupled to the other element or layer, or there may be intermediate elements or layers. Conversely, when an element is referred to as being "directly on", "directly connected" or "directly coupled" to another element or layer, there are no intermediate elements or layers. Similar numbers in all figures indicate similar elements. As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items.

[0047] Spatially relative terms may be used for ease of description, such as "under," "below," "lower," "above," "above," etc. to describe the relationship of one element or feature to another element or feature as shown in the figure. It should be understood that the spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the figure. For example, if the device in the figure is turned over, the elements described as "under" or "below" other elements or features will be facing "above" the other elements or features. Thus, the exemplary term "below" can include both the above and below orientations. The device can be made to take other orientations (rotated 90 degrees or other orientations), and the spatially relative terms used here are interpreted accordingly.

[0048] The terms used herein are used only to describe specific embodiments and are not intended to limit the statements in this document. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It is also understood that when used in this specification, the term "comprising" refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing lead short circuit in a distribution box, characterized in that: include: Four insulating protective sleeves and connecting plates; The connecting plate is provided with four strip holes, each of which is slidably connected to an insulating protective sleeve; A locking bolt is arranged between the strip hole and the insulating protective sleeve; A pressing mechanism is provided on each insulating protective sleeve; The insulating protective sleeve is arranged on the cable of the distribution box, and the insulating protective sleeve and the cable are pressed and fixed to each other through a pressing mechanism.

2. The device for preventing lead short circuit in a distribution box according to claim 1, characterized in that: There are gaps between the four strip holes.

3. The device for preventing lead short circuit of distribution box according to claim 1, characterized in that: The first insulating protective sleeve is arranged on the A phase of the three-phase electricity, the second insulating protective sleeve is arranged on the B phase of the three-phase electricity, the third insulating protective sleeve is arranged on the C phase of the three-phase electricity, and the fourth insulating protective sleeve is arranged on the N phase.

4. The device for preventing lead short circuit of distribution box according to claim 1, characterized in that: Four insulating sleeves are set in different colors.

5. The device for preventing lead short circuit of distribution box according to claim 1, characterized in that: The insulating protective sleeve is provided with an opening and is sleeved on the cable of the distribution box through the opening.

6. The device for preventing lead short circuit in a distribution box according to claim 5, characterized in that: The pressing mechanism is provided with a pressing bolt, and a first end of the pressing bolt is fixedly connected to a first pressing plate; The first pressing plate is arranged on the inner side of the insulating protective sleeve, and the pressing bolt passes through the outside of the insulating protective sleeve; The second end of the holding bolt is threadedly connected to a second pressing plate, and a spring is arranged between the second pressing plate and the first pressing plate.

7. The device for preventing lead short circuit of distribution box according to claim 1, characterized in that: The locking bolt and the pressing mechanism are both made of insulating materials.

8. The device for preventing lead short circuit in a distribution box according to claim 1, characterized in that: A through hole is provided on the insulating protective sleeve, and a locking bolt passes through the through hole and the strip hole to fix the insulating protective sleeve on the connecting plate.

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