Low-voltage line insulation cap for live working

Abstract

The utility model belongs to the technical field of low-voltage line operation, and particularly relates to a low-voltage line insulation cap for hot-line operation, which comprises an insulation cap with an opening at one end, an annular insulation sleeve is arranged in the insulation cap in a fitting manner, and an anti-loosening clamp is arranged at the opening end of the insulation cap. The anti-loosening clamp and the insulation cap are in clamping connection through a fixing buckle. Wherein the insulating sleeve is provided with a plurality of groups of annular structures with different diameters from the bottom end of the insulating cap to the opening end of the insulating cap from small to large, and the annular sleeves with different diameters of the insulating sleeve are connected by adopting smooth curves. The insulating cap can be directly sleeved on the wire end for protection treatment, the trouble of stripping an insulating tape after the insulating tape is wound on the wire end for protection is avoided, the power replacement efficiency is improved, the insulating cap can be repeatedly used, and the use of the insulating tape is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage line operation, in particular to an insulating cap for a low-voltage line for live operation. Background Art

[0002] As the core device for measuring user electricity consumption, low-voltage electricity meters have extremely high requirements for integrity and accuracy. In order to meet users' better electricity needs, electricity meters will be regularly upgraded for functional improvement. Therefore, power supply companies will calibrate and rotate electricity meters according to the prescribed cycle, and replace faulty meters in a timely manner. A large number of electricity meters are replaced every year.

[0003] In order to ensure power supply reliability and improve the user's energy experience when replacing the electric energy meter on site, when facing the replacement of a single switch fault meter in a centralized meter box in a community, live replacement will be adopted. The exposed wire ends are insulated and wrapped with insulating tape to prevent phase-to-phase short circuit and personal electric shock. After the meter is replaced, the insulating tape needs to be peeled off again. The removed insulating tape after replacement needs to be cleaned and recycled on site. The entire replacement process is complicated, time-consuming, inefficient, and frequently consumes insulating tape. In view of the shortcomings of the above operations, a low-voltage line insulating cap for live operation is proposed. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, when wrapping or stripping the insulating tape on the live wire harness, it is easy for people to get electric shock. In addition, the whole process is complicated, time-consuming, inefficient, and consumes a lot of insulating tape. The utility model proposes an insulating cap for low-voltage lines for live operations.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an insulating cap for a low-voltage line for live working, comprising an insulating cap with an opening at one end, a circular insulating sleeve being fitted inside the insulating cap, an anti-loosening clip being arranged at the open end of the insulating cap, and the anti-loosening clip being connected to the insulating cap by a fixed snap-fit ​​connection; wherein, the insulating sleeve is provided with a plurality of groups of annular structures of different diameters from small to large from the bottom end to the open end of the insulating cap, and the annular sleeves of different diameters of the insulating sleeve are connected by a smooth curve; the anti-loosening clip comprises an anti-loosening half-clip one and an anti-loosening half-clip two, and both the anti-loosening half-clip one and the anti-loosening half-clip two are provided with meshing teeth for meshing connection between the two.

[0006] Preferably, the insulating cap is made of polyvinyl chloride, and the insulating sleeve is made of rubber.

[0007] Preferably, a rubber liner one is provided on the inner arc surface of the anti-loosening half clamp one, a rubber liner two is provided on the inner arc surface of the anti-loosening half clamp two, a pin hole is penetrated through the anti-loosening half clamp one, a guide pin is inserted into the pin hole, the lower end of the guide pin is fixedly connected to the edge of the opening end of the insulating cap, and ejector pins are inserted on both sides of the anti-loosening half clamp one.

[0008] Preferably, the fixing buckle includes a hook fixedly mounted on the outer bottom end of the anti-loosening half clamp and a clamping plate arranged at the outer edge of the opening end of the insulating cap, and a clamping structure is formed between the hook and the clamping plate.

[0009] Preferably, the outer wall of the insulating cap is further provided with a connecting pin, and the connecting pin comprises a pin seat and a pin column respectively installed on both sides of the outer wall of the insulating cap, and a snap-fit ​​structure is formed between the pin seat and the pin column.

[0010] Preferably, a strong magnet is also installed on the outer side of the insulating cap.

[0011] The utility model is beneficial in that:

[0012] 1. The utility model utilizes an insulating cap to protect exposed live wire heads by directly putting it on the wire heads for protection, thus eliminating the trouble of wrapping insulating tape around the wire heads for protection and then peeling off the insulating tape, thereby improving the efficiency of power replacement, and the insulating cap can be reused, reducing the use of insulating tape. In addition, an insulating sleeve is arranged inside the insulating cap to enhance the insulation effect, and the insulating sleeve adopts annular sleeves of various diameters, so that one insulating cap can meet the use needs of wire harnesses of different diameters, thereby improving the flexibility of use;

[0013] 2. The utility model can clamp the wire harness inserted into the insulating cap by the anti-loosening clamp, and then connect the anti-loosening clamp to the insulating cap by the fixing buckle, so as to fix the wire harness and prevent it from falling off from the insulating cap due to being pulled after being inserted into the insulating cap, thereby affecting the protection of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2It is a cross-sectional structural schematic diagram of the insulating cap and the insulating sleeve of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional exploded structure of the anti-loosening clamp of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the fixing buckle on the anti-loosening clamp of the utility model.

[0019] In the figure: 1. Insulating cap; 2. Insulating sleeve; 3. Anti-loosening clip; 4. Fixing buckle; 5. Connecting pin; 6. Strong magnet; 31. Anti-loosening half clip one; 32. Anti-loosening half clip two; 33. Engaging teeth; 34. Gasket one; 35. Gasket two; 36. Pin hole; 37. Guide pin; 38. Ejector pin; 41. Hook; 42. Card plate; 51. Pin seat; 52. Pin column. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 As shown, an insulating cap for a low-voltage line for live working comprises an insulating cap 1 with an opening at one end, a circular insulating sleeve 2 is fitted inside the insulating cap 1, an anti-loosening clip 3 is arranged at the open end of the insulating cap 1, and the anti-loosening clip 3 is connected to the insulating cap 1 by a fixing buckle 4; wherein, the insulating sleeve 2 is provided with a plurality of groups of annular structures of different diameters from small to large from the bottom end to the open end of the insulating cap 1, and the annular sleeves of different diameters of the insulating sleeve 2 are connected by a smooth curve; the anti-loosening clip 3 comprises an anti-loosening half clip 1 31 and an anti-loosening half clip 2 32, and both the anti-loosening half clip 1 31 and the anti-loosening half clip 2 32 are provided with meshing teeth 33 for meshing connection between the two;

[0022] When replacing the electric meter, the wiring harness and the electric meter are disassembled and assembled, and the exposed wire ends can be insulated by putting on the insulating cap 1. In addition, in order to make the contact between the wire ends inserted into the insulating cap 1 more compact and prevent the wire ends from falling off from the insulating cap 1 when being pulled, after the wire ends are inserted into the insulating cap 1, the anti-loosening half clamp 2 32 is engaged with the anti-loosening half clamp 1 31 through the meshing teeth 33, and the space between the anti-loosening half clamp 1 31 and the anti-loosening half clamp 2 32 is gradually tightened until the anti-loosening clamp 3 can be clamped on the outer insulating skin of the wire speed, and then the anti-loosening clamp 3 is pushed toward one side of the insulating cap 1 along the guide pin 37 until the hook 41 of the anti-loosening clamp 3 is buckled on the clamping plate 42 for connection, so that the connection between the wiring harness and the insulating cap 1 is tighter to prevent falling off;

[0023] In addition, the insulating sleeve 2 adopts annular sleeves of various diameters, so that one insulating cap 1 can meet the use needs of wire harnesses with different diameters and improve the flexibility of use. For example, the wire harness with the annular sleeve of the smallest diameter can be inserted into the bottom of the insulating cap 1, and the wire harness with the annular sleeve of the largest diameter can be inserted into the position of the largest annular sleeve of the insulating sleeve 2. However, no matter where the wire end is inserted into the annular sleeve, the exposed wire end can be fully wrapped to play an insulating role.

[0024] The insulating cap 1 is made of polyvinyl chloride, and the insulating sleeve 2 is made of rubber;

[0025] The insulating cap 1 is the external structure of the entire device and is made of polyvinyl chloride. On the one hand, it can play an insulating role, and on the other hand, it can play a supporting role. It can prevent the internal space from deforming and facilitate the insertion of the wiring harness. The insulating sleeve 2 is made of rubber material. On the one hand, it improves the insulation effect, and on the other hand, it can increase the friction with the wiring harness and reduce the problem of the wiring harness falling off.

[0026] Please refer to Figure 3 As shown, a rubber liner 34 is provided on the inner arc surface of the anti-loosening half clamp 1, a rubber liner 35 is provided on the inner arc surface of the anti-loosening half clamp 2, a pin hole 36 is penetrated on the anti-loosening half clamp 1, a guide pin 37 is inserted in the pin hole 36, the lower end of the guide pin 37 is fixedly connected to the edge of the opening end of the insulating cap 1, and ejector pins 38 are inserted on both sides of the anti-loosening half clamp 1. The fixing buckle 4 includes a hook 41 fixedly installed on the outer bottom end of the anti-loosening half clamp 1 and a card plate 42 provided at the outer edge of the opening end of the insulating cap 1, and a clamping structure is formed between the hook 41 and the card plate 42;

[0027] A liner 1 34 and a liner 2 35 are respectively fitted on the inner arc surface of the anti-loosening half clamp 1 31 and the inner arc surface of the anti-loosening half clamp 2 32, and are made of rubber material. On the one hand, when the wire harness is clamped, the friction with the outer insulation skin of the wire harness can be increased, making it easier to clamp the wire harness. On the other hand, the wire harness can be protected to prevent it from being clamped. When facing wire harnesses of different diameters, the tightness of the closure between the anti-loosening half clamp 1 31 and the anti-loosening half clamp 2 32 can be adjusted until the wire harness is clamped. After the wire harness is clamped, the anti-loosening clamp 3 is put on the guide pin 37 through the pin hole 36, and the anti-loosening clamp 3 clamping the wire harness is moved along the guide pin 37. The insulating cap 1 is pushed on one side to buckle the hook 41 on the anti-loosening clip 3 on the clamping plate 42 of the insulating cap 1, so that the anti-loosening clip 3 and the insulating cap 1 become a whole. The anti-loosening clip 3 is used to clamp the wiring harness to prevent it from falling off the insulating cap 1. When the insulating cap 1 needs to be removed from the wire head, the ejector pins 38 on both sides of the anti-loosening half clamp 1 31 can be pressed, and the anti-loosening half clamp 2 32 can be pushed by the ejector pins 38, so that the meshing teeth 33 between the anti-loosening half clamp 2 32 and the anti-loosening half clamp 1 31 are disengaged from each other, and then the anti-loosening half clamp 2 32 is untied from the anti-loosening half clamp 1 31, and then the wiring harness can be pulled out of the insulating cap 1, and the insulating cap 1 can be reused in this way.

[0028] Please refer to Figure 4 As shown, the outer wall of the insulating cap 1 is also provided with a connecting pin 5, and the connecting pin 5 includes a pin seat 51 and a pin column 52 respectively installed on both sides of the outer wall of the insulating cap 1, and a snap-fit ​​structure is formed between the pin seat 51 and the pin column 52;

[0029] The connection pin 5 can be used to connect multiple insulating caps 1 together. During assembly, the pin 52 on one insulating cap 1 can be snapped onto the pin seat 51 of another insulating cap 1 for connection and assembly.

[0030] A strong magnet 6 is also installed on the outside of the insulating cap 1. When the distribution box is made of iron or other materials that can be adsorbed by magnets, the insulating cap 1 can be directly adsorbed on the distribution box to avoid the wire ends from curling up and affecting the operation.

[0031] Working principle: when replacing the electric meter, the wiring harness and the electric meter are disassembled and assembled, and the exposed wire ends can be insulated by putting on the insulating cap 1. In addition, in order to make the contact between the wire ends inserted into the insulating cap 1 tighter and prevent the wire ends from falling off from the insulating cap 1 when pulling the wire ends, after the wire ends are inserted into the insulating cap 1, the anti-loosening half clamp 2 32 is engaged with the anti-loosening half clamp 1 31 through the engaging teeth 33, and the space between the anti-loosening half clamp 1 31 and the anti-loosening half clamp 2 32 is gradually tightened until the anti-loosening clamp 3 can be clamped on the outer insulating skin of the wire speed, and then the anti-loosening clamp 3 is pushed to one side of the insulating cap 1 along the guide pin 37 until the hook 41 of the anti-loosening clamp 3 is buckled on the card plate 42 for connection, so that the connection between the wiring harness and the insulating cap 1 is tighter to prevent falling off.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A low-voltage line insulation cap for live working, characterized in that: It comprises an insulating cap (1) with an opening at one end, a circular insulating sleeve (2) being fitted inside the insulating cap (1), an anti-loosening clip (3) being provided at the open end of the insulating cap (1), and the anti-loosening clip (3) being snap-fitted and connected to the insulating cap (1) via a fixing buckle (4); The insulating sleeve (2) is provided with a plurality of groups of annular structures with different diameters from small to large from the bottom end to the open end of the insulating cap (1), and the annular sleeves with different diameters of the insulating sleeve (2) are connected by smooth curves; The anti-loosening clamp (3) comprises an anti-loosening half clamp (31) and an anti-loosening half clamp (32), and both the anti-loosening half clamp (31) and the anti-loosening half clamp (32) are provided with meshing teeth (33) for meshing connection between the two.

2. The low-voltage line insulation cap for live working according to claim 1, characterized in that: The insulating cap (1) is made of polyvinyl chloride, and the insulating sleeve (2) is made of rubber.

3. The low-voltage line insulation cap for live working according to claim 1, characterized in that: A rubber liner (34) is provided on the inner arc surface of the anti-loosening half clamp (31), and a rubber liner (35) is provided on the inner arc surface of the anti-loosening half clamp (32). A pin hole (36) is provided through the anti-loosening half clamp (31), and a guide pin (37) is inserted into the pin hole (36). The lower end of the guide pin (37) is fixedly connected to the edge of the opening end of the insulating cap (1), and ejector pins (38) are inserted on both sides of the anti-loosening half clamp (31).

4. The low-voltage line insulation cap for live working according to claim 1, characterized in that: The fixing buckle (4) comprises a hook (41) fixedly mounted on the outer bottom end of the anti-loosening half clamp (31) and a clamping plate (42) arranged at the outer edge of the opening end of the insulating cap (1), and a clamping structure is formed between the hook (41) and the clamping plate (42).

5. The low-voltage line insulation cap for live working according to claim 1, characterized in that: The outer wall of the insulating cap (1) is also provided with a connecting pin (5), and the connecting pin (5) comprises a pin seat (51) and a pin column (52) respectively mounted on both sides of the outer wall of the insulating cap (1), and a snap-fit ​​structure is formed between the pin seat (51) and the pin column (52).

6. The low-voltage line insulation cap for live working according to claim 1, characterized in that: A strong magnet (6) is also installed on the outer side of the insulating cap (1).

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