A grounding wire hanging device for outdoor branch box

Abstract

The present invention relates to the field of grounding wire hanging tools, and in particular to a grounding wire hanging device for an outdoor branch box. The grounding method of a low-voltage cable branch box is to clamp a grounding wire clip on the bolts of an outdoor branch box and then ground it. Since the bolts on the branch box are relatively short and most of the bolts are located in the inner part of the branch box, the grounding wire is not firmly hung here and is easy to fall off, which leads to many safety hazards in the grounding wire laying. The present invention includes a grounding rod, a grounding wire lap plate, and a detachable sleeve-type sleeve portion. The rear end of the grounding rod is provided with a detachable operating handle, and the front end center of the sleeve-type sleeve portion is provided with an inner hexagonal hole that matches the shape of the hexagonal tail of the outdoor branch box bolt. The inner hexagonal hole of the sleeve-type sleeve portion is sleeved on the outdoor branch box bolt. Since the inner hexagonal hole matches the hexagonal tail of the outdoor branch box bolt and is clamped by an elastic card, it is difficult to fall off, and the grounding wire lap is stable and reliable with good safety.

Description

Technical Field

[0001] The invention relates to the field of grounding wire hanging tools, in particular to a grounding wire hanging device for an outdoor branch box. Background Art

[0002] The current grounding method of low-voltage cable branch boxes is to clamp the grounding wire clamp on the bolts of the outdoor branch box and then ground it. The bolts of the outdoor branch box clamped by the clamp can be the hexagonal tail or the screw part and then the nut is screwed on. Usually, because the bolts on the branch box are short and most of the bolts are located in the inner position of the branch box, it is difficult for the grounding wire clamp to be clamped on the bolt during the grounding operation. Even if it is clamped, it is easy to fall off due to the pulling of the grounding wire during the operation due to the insufficient clamping depth, which makes the grounding operation on the branch box have many inconveniences and reduces the work efficiency. In addition, if the grounding wire falls during the operation, it is very easy to cause a safety accident with disastrous consequences. Summary of the invention

[0003] The technical problem to be solved and the technical task proposed by the present invention are to improve and perfect the existing technical solutions and provide a grounding wire hanging device for an outdoor branch box, so as to improve the grounding wire hanging efficiency and reliability. To this end, the present invention adopts the following technical solutions.

[0004] A grounding wire hanging device for an outdoor branch box includes a grounding rod, a grounding wire lap plate arranged on the grounding rod and perpendicular to the axial direction of the grounding rod, a sleeve-type sleeve portion arranged at the front end of the grounding rod for connecting to the bolt of the outdoor branch box, and an operating handle at the rear end of the grounding rod. The front end center of the sleeve-type sleeve portion is provided with an inner hexagonal hole matching the shape of the hexagonal tail of the outdoor branch box bolt or the hexagonal nut matched with the outdoor branch box bolt. When hanging the grounding wire, the inner hexagonal hole of the sleeve-type sleeve portion at the front end of the grounding rod is sleeved on the outdoor branch box bolt by holding the operating handle. At this time, because the inner hexagonal hole matches the hexagonal tail of the outdoor branch box bolt or the hexagonal nut matched with the outdoor branch box bolt, it is difficult to fall off under the action of gravity. Then, the grounding wire clamp is clamped on the grounding wire lap plate to achieve grounding wire lap. The structure is simple and the operation is convenient. The disadvantage of small cable spacing and insufficient space of the outdoor branch box is avoided, and the safety distance of grounding wire lap is increased. The grounding wire lap is stable and reliable, the lap speed is fast, the safety is good, and the efficiency is high.

[0005] As a preferred technical means: the sleeve-type sleeve connection part and the front end of the grounding rod are detachably connected, and the hanging device is equipped with sleeve-type sleeve connections of various hexagonal hole specifications, so that the sleeve-type sleeve connection part suitable for different bolt specifications can be conveniently selected.

[0006] As a preferred technical means: the depth of the hexagonal hole is greater than the hexagonal tail of the outdoor branch box bolt or the matching depth of the hexagonal nut matched with the outdoor branch box bolt, which is between 1.2-1.5 times. Ensuring sufficient jacket depth, avoiding the instability of the sleeve-type socket part due to insufficient depth of the hexagonal hole, and improving the safety of the socket.

[0007] As a preferred technical means: the inner side wall of the hexagonal hole of the sleeve-type sleeve part is provided with a plurality of elastic cards, the elastic cards are flanged toward the end face at the port of the hexagonal hole, and a guide arc is provided at the flange. The elastic cards are inclined toward the radial center of the hexagonal hole at the port of the hexagonal hole to reserve rebound space. When the hexagonal tail of the bolt or the hexagonal nut is inserted into the hexagonal hole, the elastic card is rebounded by the lateral pressure of the hexagonal tail of the bolt or the hexagonal nut, and rebounds and presses the side wall of the hexagonal tail of the bolt or the hexagonal nut after insertion, or the elastic card is located at the end of the hexagonal hole and rebounds and presses the hexagonal tail of the bolt adjacent to the screw rod to prevent detachment to the rear side. By arranging the elastic card on the inner side wall of the hexagonal hole, when the sleeve-type sleeve part is inserted into the hexagonal tail of the bolt or the sleeve-type sleeve part is inserted into the hexagonal nut, the elastic card is rebounded and pressed, so that the hanging device connection is more reliable and safe, and less likely to fall off.

[0008] As a preferred technical means: the inner wall of the hexagonal hole is provided with two elastic cards, the two elastic cards are arranged opposite to each other, and the two elastic cards are formed by bending the same elastic sheet, and the bottom of the elastic sheet is fixed to the bottom of the hexagonal hole of the sleeve-type sleeve part by screws. It is easy to manufacture, and the sleeve connection is more firm and reliable through the rebound compression on both sides, and it is not easy to fall off.

[0009] As a preferred technical means: the distance between the two elastic clips at the end of the hexagonal hole is smaller than the hexagonal tail of the bolt or smaller than the matching outer dimensions of the hexagonal nut between 1mm and 3mm. This size range has a strong rebound pressure.

[0010] As a preferred technical means: the grounding rod comprises a front rod portion located at the front side of the grounding wire lap plate and a rear rod portion located at the rear side of the grounding wire lap plate, the front and rear ends of the front rod portion are provided with threaded connection portions, the bolt connection portion at the front end is connected to the sleeve-type sleeve portion by threaded matching, and the bolt connection portion at the rear end passes through the through hole on the grounding wire lap plate and is threadedly connected to the rear rod portion. The detachable connection and fixation between the front rod portion and the sleeve-type sleeve portion, the front rod portion and the grounding wire lap plate and the rear rod portion can be reliably realized, and the connection is stable and reliable.

[0011] As a preferred technical means: the operating handle is detachably mounted on the rear rod of the grounding rod, and a magnetic fixing structure is provided between the operating handle and the rear rod of the grounding rod. The magnetic detachable cover structure is simple and reliable, and is convenient for removing the operating handle. The operating handle can be reused to perform connection and fixing operations on other grounding wire hanging ends, thereby realizing the sharing of the operating handle.

[0012] As a preferred technical means: the specifications of the hexagonal holes of the sleeve-type sleeve connection part include M8, M10, M14, and M16. These four specifications basically cover the currently commonly used outdoor branch box bolt specifications, which is convenient for direct replacement and connection operations.

[0013] As a preferred technical means: the operating handle is an insulating handle, which can effectively avoid damage to the operator caused by leakage and the like, and improve the safety of operation.

[0014] Beneficial effects:

[0015] 1. The ground wire hanging end is connected and fixed to the bolt of the outdoor branch box through the sleeve-type sleeve part, and the ground wire is overlapped through the ground wire overlap plate. The insulated operating handle is convenient for the hanging operation of the ground wire hanging end. It has a simple structure, convenient operation and high safety. The ground wire hanging end avoids the shortcomings of small cable spacing and insufficient space in the outdoor branch box, increases the safe distance of ground wire overlap, and the ground wire overlap is stable and reliable, with fast overlap speed and high efficiency.

[0016] 2. By providing commonly used sleeve-type socket parts of various specifications, it is convenient to directly select matching specifications for on-site replacement and connection operations. The replaceable structure greatly reduces product costs;

[0017] 3. Through the pluggable and detachable structure between the operating handle and the grounding rod, after the grounding wire hanging end is connected and fixed to the bolt of the outdoor branch box, the operating handle can be easily unplugged, and the operating handle can be reused to perform the connection and fixing operation of other grounding wire hanging ends, so that the operating handle can be shared, which can effectively reduce costs;

[0018] 4. The elastic card can effectively enhance the fixing effect of the hanging, and better prevent the sleeve-type sleeve part from loosening from the bolt or nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 It is a blasting schematic diagram of the present invention.

[0021] Figure 3 It is a schematic diagram of the elastic card compression in Example 2 of the present invention.

[0022] Figure 4It is a schematic diagram of the elastic card compression in Example 3 of the present invention.

[0023] In the figure: 1-grounding rod; 2-grounding wire connection plate; 3-sleeve-type sleeve; 4-operating handle; 5-elastic card; 101-front rod; 102-rear rod; 103-threaded connection; 301-hexagonal hole; 6-bolt; 601-hexagonal tail; 602-screw. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] like Figure 1-2 As shown, a grounding wire hanging device for an outdoor branch box includes a grounding rod 1, a grounding wire connection plate 2 arranged on the grounding rod 1 and perpendicular to the axial direction of the grounding rod 1, a sleeve-type socket part 3 arranged at the front end of the grounding rod 1 for connecting to the bolt of the outdoor branch box, an operating handle 4 is arranged at the rear end of the grounding rod 1, and an inner hexagonal hole 301 matching the hexagonal tail of the outdoor branch box bolt is arranged at the front end center of the sleeve-type socket part 3.

[0027] In order to adapt to different bolt specifications of outdoor branch boxes, the sleeve-type sleeve part 3 is detachably connected to the front end of the grounding rod 1, and the hanging device is equipped with sleeve-type sleeve parts 3 with various specifications of hexagonal holes 301. It is convenient to select the sleeve-type sleeve part 3 according to different bolt specifications.

[0028] In order to avoid the insufficient depth of the hexagonal hole 301, the depth of the hexagonal hole 301 is 1.3 times the matching depth of the hexagonal tail of the outdoor branch box bolt. Ensuring sufficient jacket depth avoids the insufficient depth of the hexagonal hole 301, which makes the sleeve type socket part 3 unstable, and improves the safety of the socket connection.

[0029] In order to realize the detachable connection structure, the grounding rod 1 includes a front rod portion 101 located at the front side of the grounding wire connection plate 2 and a rear rod portion 102 located at the rear side of the grounding wire connection plate 2. The front and rear ends of the front rod portion 101 are provided with threaded connection portions 103. The bolt connection portion at the front end is connected to the sleeve-type sleeve portion 3 through a threaded match, and the bolt connection portion at the rear end passes through the through hole on the grounding wire connection plate 2 and is threadedly connected to the rear rod portion 102. The detachable connection and fixation of the front rod portion 101 and the sleeve-type sleeve portion 3, the front rod portion 101 and the grounding wire connection plate 2 and the rear rod portion 102 can be reliably realized, and the connection is stable and reliable.

[0030] In order to realize the sharing of the operating handle 4, the operating handle 4 is detachably covered on the rear rod portion 102 of the grounding rod 1, and a magnetic fixing structure is provided between the operating handle 4 and the rear rod portion 102 of the grounding rod 1. The magnetic detachable cover structure is simple and reliable, and is convenient for removing the operating handle 4. The operating handle 4 can be reused to perform connection and fixing operations on other grounding wire hanging ends, thereby realizing the sharing of the operating handle 4.

[0031] In order to improve the safety of operation, the operating handle 4 is an insulating handle, which can effectively avoid the harm to the operator caused by leakage and the like, and improve the safety of operation.

[0032] When hanging the grounding wire, first select the sleeve-type sleeve part 3 that matches the outdoor branch box bolt to connect with the grounding rod 1, and use the handheld operating handle 4 to put the inner hexagonal hole 301 of the sleeve-type sleeve part 3 at the front end of the grounding rod 1 on the outdoor branch box bolt. At this time, because the inner hexagonal hole 301 matches the hexagonal tail of the outdoor branch box bolt or the hexagonal nut matched with the outdoor branch box bolt, it is difficult to fall off under the action of gravity. Then clamp the grounding wire clamp to the grounding wire lap plate 2 to achieve grounding wire lap. The structure is simple and the operation is convenient. It avoids the disadvantages of insufficient space due to small cable spacing in the outdoor branch box, increases the safe distance of grounding wire lap, and the grounding wire lap is stable and reliable, with fast lap speed, good safety and high efficiency, and reduces the cost.

[0033] In this example, the grounding wire bonding plate 2 is a copper plate.

[0034] In this example, a set of hanging devices includes four sleeve-type socket parts 3, and the specifications of the hexagonal holes 301 of the four sleeve-type socket parts 3 are respectively M8, M10, M14, and M16. These four specifications basically cover the currently commonly used outdoor branch box bolt specifications, which is convenient for direct replacement and connection operations.

[0035] Example 2

[0036] The difference from the above example is that Figure 1-3As shown, in order to make the connection of the hanging device more reliable and safe, an elastic card 5 is provided on the inner side wall of the hexagonal hole 301 of the sleeve-type sleeve part 3. The elastic card 5 is flanged toward the end face at the end portion of the hexagonal hole 301, and a guide arc is provided at the flange. The elastic card 5 is inclined toward the radial center of the hexagonal hole 301 at the end portion of the hexagonal hole 301 to reserve a rebound space. When the hexagonal tail 601 of the bolt 6 is inserted into the hexagonal hole 301, the elastic card 5 is rebounded by the lateral pressure of the hexagonal tail 601 of the bolt 6, and rebounds and presses the side wall of the hexagonal tail 601 of the bolt 6 after being inserted. By providing the elastic card 5 on the inner side wall of the hexagonal hole 301, when the sleeve-type sleeve part 3 is inserted into the hexagonal tail 601 of the bolt 6, the elastic card 5 is rebounded and pressed, so that the connection of the hanging device is more reliable and safe, and it is not easy to fall off.

[0037] In this example, two elastic cards 5 are provided on the inner wall of the hexagonal hole 301, the two elastic cards 5 are arranged opposite to each other, and the two elastic cards 5 are formed by bending the same elastic sheet, and the bottom of the elastic sheet is fixed to the bottom of the hexagonal hole 301 of the sleeve-type sleeve part 3 by screws. It is easy to manufacture, and the sleeve connection is more firm and reliable through the rebound compression on both sides, and it is not easy to fall off.

[0038] In this example, the distance between the two elastic cards 5 at the end of the hexagonal hole 301 is 2 mm less than the matching outer dimension of the hexagonal tail 601 of the bolt 6. This dimension has a strong rebound pressure, and the side pressure area is relatively reasonable.

[0039] In this example, the hexagonal tail 601 of the bolt 6 that is rebounded and compressed by the elastic card 5 is adjacent to the screw rod 602 side of the bolt 6, and the compression method is surface compression.

[0040] Example 3

[0041] The difference from the above example 2 is that Figure 4 As shown, the elastic card 5 is located at the end of the hexagonal tail 601 of the hexagonal hole 301 and the end of the rebound clamping bolt 6 adjacent to the screw rod 602 to prevent it from escaping to the rear side.

[0042] above Figure 1-4 The outdoor branch box grounding wire hanging device shown is a specific embodiment of the present invention, which has embodied the outstanding substantial features and significant progress of the present invention. According to actual use needs and under the guidance of the present invention, equivalent modifications can be made to its shape, structure, etc., which are all within the protection scope of this scheme.

Claims

1. A grounding wire hanging device for an outdoor branch box, characterized in that: The invention comprises a grounding rod (1), a grounding wire connection plate (2) arranged on the grounding rod (1) and perpendicular to the axial direction of the grounding rod (1), a sleeve-type sleeve connection portion (3) arranged at the front end of the grounding rod (1) and used for connecting to the bolts of an outdoor branch box, and an operating handle (4) is arranged at the rear end of the grounding rod (1), and a hexagonal hole (301) matching the shape of the hexagonal tail of the outdoor branch box bolt or the hexagonal nut matched with the outdoor branch box bolt is arranged at the front center of the sleeve-type sleeve connection portion (3); The sleeve-type sleeve connection part (3) is detachably connected to the front end of the grounding rod (1), and the hanging device is provided with the sleeve-type sleeve connection part (3) of various specifications of hexagonal holes (301); The inner side wall of the hexagonal hole (301) of the sleeve-type sleeve connection portion (3) is provided with two elastic clips (5), the elastic clips (5) are flanged toward the end surface at the end portion of the hexagonal hole (301), a guide arc is provided at the flange, and the elastic clips (5) are inclined toward the radial center of the hexagonal hole (301) at the end portion of the hexagonal hole (301) so as to reserve a rebound space; Two elastic cards (5) are arranged opposite to each other, and the two elastic cards (5) are formed by bending the same elastic sheet, and the bottom of the elastic sheet is fixed to the bottom of the hexagonal hole (301) of the sleeve-type sleeve portion (3) by screws; The grounding rod (1) comprises a front rod portion (101) located at the front side of the grounding wire connection plate (2) and a rear rod portion (102) located at the rear side of the grounding wire connection plate (2). The front and rear ends of the front rod portion (101) are provided with threaded connection portions (103). The front bolt connection portion is connected to the sleeve-type sleeve portion (3) by threaded matching. The rear bolt connection portion passes through a through hole on the grounding wire connection plate (2) and is threadedly connected to the rear rod portion (102).

2. The outdoor branch box grounding wire hanging device according to claim 1 is characterized in that: The depth of the hexagonal inner hole (301) is greater than the matching depth of the hexagonal tail of the outdoor branch box bolt or the hexagonal nut matched with the outdoor branch box bolt, and the depth of the hexagonal inner hole (301) is 1.2-1.5 times the matching depth of the hexagonal nut.

3. The outdoor branch box grounding wire hanging device according to claim 1 is characterized in that: The distance between the two elastic cards (5) and the end portions of the hexagonal inner hole (301) is 1 mm to 3 mm smaller than the hexagonal tail of the bolt or the matching outer dimensions of the hexagonal nut.

4. The outdoor branch box grounding wire hanging device according to claim 1 is characterized in that: The operating handle (4) is detachably mounted on the rear rod portion (102) of the grounding rod (1), and a magnetic fixing structure is provided between the operating handle (4) and the rear rod portion (102) of the grounding rod (1).

5. The outdoor branch box grounding wire hanging device according to claim 1 is characterized in that: The specifications of the hexagonal inner hole (301) of the sleeve-type sleeve connection portion (3) include M8, M10, M14, and M16.

6. The outdoor branch box grounding wire hanging device according to claim 1 is characterized in that: The operating handle (4) is an insulating handle.

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