Low-voltage bare wire head insulation cap and low-voltage wire grounding device

Abstract

The invention discloses a low-voltage bare wire end insulation cap, and relates to the technical field of cable bare wire end insulation devices, and a cap assembly, the low-voltage bare wire end insulation cap comprises a cap body made of an insulation material, the interior of the cap body is provided with an insulation space, one end of the cap body is open, and the insulation space is internally provided with a live induction element capable of inducing current. And the cap body can be sleeved outside the exposed wire end of the low-voltage wire. An insulation barrier is provided for the exposed wire end of the low-voltage wire, the electrified sensing element is arranged, when the exposed wire end of the low-voltage wire is inserted into the insulation space and makes contact with the metal tooth wire, if the low-voltage wire is electrified, the electrified sensing element is connected through a circuit, and the light-emitting indicating lamp serves as a response piece and a warning piece and gives out light to respond at the moment when the circuit is connected. Therefore, an operator is reminded of live-line of the low-voltage line and timely warning is performed.

Description

Technical Field

[0001] The invention relates to the technical field of cable bare wire end insulation devices, and in particular to a low-voltage bare wire end insulation cap and a low-voltage wire grounding device. Background Art

[0002] At present, there is no special protective cover for the exposed ends of low-voltage power conductors, relay protection system conductors, metering system conductors, etc. during construction. Generally, insulating tape is used for simple treatment, or even medical infusion tubes are cut off and simply put on the ports instead of insulating tape. Even if there are some simple caps, the use effect is not good due to their poor compatibility and high precision requirements for operation. A multi-size compatible quick-insulating cap for low-voltage bare wire heads is developed. During the insulation treatment of the low-voltage bare wire head ends, whether conventional electrical tape or newly developed insulating caps are used, sometimes the low-voltage bare wire head ends being operated may be energized, such as live cable stringing, AC and DC cable ends higher than 220V in power stations, etc. When handling these live bare wire head ends, it will endanger the personal and equipment safety of operators, thereby creating potential safety hazards. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problem that the exposed wire ends of the existing low-voltage wires endanger the safety of workers during live operations, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a low-voltage bare wire end insulating cap, comprising a cap assembly, which includes a cap body made of insulating material, the interior of the cap body has an insulating space and one end is open, a charged induction element capable of sensing current is arranged in the insulating space, and the cap body can be mounted on the outside of the exposed wire end of the low-voltage line.

[0006] As a preferred embodiment of the low-voltage bare wire head insulating cap of the present invention, the charged induction element includes a voltage limiting path, a current limiting resistor arranged in series on the voltage limiting path, and a light-emitting indicator light arranged in parallel on the voltage limiting path.

[0007] As a preferred solution of the low-voltage bare wire head insulating cap of the present invention, the light-emitting indicator light is arranged in parallel on the voltage-limiting path behind the tail end of the current-limiting resistor.

[0008] As a preferred embodiment of the low-voltage bare wire end insulating cap of the present invention, a metal wire is provided at the input end of the voltage limiting passage, the metal wire is made of elastic conductive material and is spiral-shaped, and the metal wire can contact the exposed wire end of the low-voltage wire extending into the insulating space.

[0009] As a preferred embodiment of the low-voltage bare wire insulating cap of the present invention, the cap body includes a trumpet-shaped cap head and a light-transmitting cap body connected to the small end of the trumpet-shaped cap head; the large end of the trumpet-shaped cap head is an opening of the insulating space; the charged induction element is arranged at a position of the insulating space corresponding to the transparent cap body.

[0010] As a preferred solution of the low-voltage bare wire insulation cap of the present invention, the trumpet-shaped cap head is made of elastic rubber material.

[0011] As a preferred solution of the low-voltage bare wire insulating cap described in the present invention, the trumpet-shaped cap head is made of hard plastic material, and a clamping clip is arranged in the insulating space corresponding to the trumpet-shaped cap head to fix the exposed wire ends of the low-voltage wires extending into the insulating space.

[0012] As a preferred embodiment of the low-voltage bare wire end insulating cap of the present invention, the clamping member includes at least two relatively arranged arc-shaped elastic members, the gap between the two arc-shaped elastic members forms a guide channel for inserting the exposed wire end of the low-voltage wire, and the protrusions of the two arc-shaped elastic members are close to each other.

[0013] In order to solve the above technical problems, the present invention also provides the following technical solutions: a low-voltage line grounding device, comprising the low-voltage bare wire head insulating cap; and a conductive component, which includes a power transmission cable connected to the charged induction element, and a grounding piece arranged at the end of the power transmission cable.

[0014] As a preferred solution of the low-voltage line grounding device of the present invention, the grounding member is any one of an alligator clip, a metal patch, and a grounding rod.

[0015] The beneficial effects of the present invention are as follows: the present invention provides an insulating barrier for the exposed ends of the low-voltage wires. By setting a charged sensing element, when the exposed ends of the low-voltage wires are inserted into the insulating space, they come into contact with the metal wire. If the low-voltage wire is charged, the circuit of the charged sensing element is connected, and the light-emitting indicator light serves as a response element and a warning element. It emits light in response at the moment the circuit is connected to remind the operator that the low-voltage wire is charged and to give a timely warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below 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 labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the cap assembly in the present invention.

[0019] Figure 3 It is a schematic structural diagram of the trumpet-shaped hat head in the present invention.

[0020] Figure 4 It is a schematic diagram of a circuit with an electric induction element in the present invention. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Example 1

[0026] Reference Figure 1 to Figure 4 , which is the first embodiment of the present invention, provides a low-voltage bare wire end insulating cap, the purpose of which is to provide an insulating barrier to protect the exposed wire ends of the low-voltage wires from the influence of the external environment (such as moisture, dust), and also to prevent operators from being electrocuted.

[0027] Specifically, the insulating cap includes a cap assembly 100, including a cap body 101 made of insulating material, the interior of the cap body 101 has an insulating space 102 and one end is open 103, a charged induction element 104 capable of sensing current is arranged in the insulating space 102, and the cap body 101 can be mounted on the outside of the exposed wire end of the low-voltage line.

[0028] The cap body 101 has an insulating space 102, which provides an insulating barrier for the exposed wire ends. The design of the open mouth 103 makes it easy to quickly put the cap body 101 on the outside of the exposed wire ends. If the low-voltage line is energized, the charged sensing element 104 built into the insulating space 102 can respond quickly when the exposed wire ends are inserted into the insulating space 102, thereby providing timely warnings to operators.

[0029] As a further improvement, the charged inductive element 104 includes a voltage limiting passage 104a, a current limiting resistor 104b arranged in series on the voltage limiting passage 104a, and a light-emitting indicator 104c arranged in parallel on the voltage limiting passage 104a; the light-emitting indicator 104c is arranged in parallel on the voltage limiting passage 104a behind the tail end of the current limiting resistor 104b.

[0030] Specifically, when the low-voltage line is energized and the exposed wire end of the low-voltage line is inserted into the insulating space 102, the light-emitting indicator 104c can respond by quickly emitting light, thereby promptly reminding the operator that the low-voltage line is energized. The design of the voltage-limiting path 104a and the current-limiting resistor 104b aims to protect the entire charged sensing element 104 from high-voltage shocks, so as to ensure that a light signal can be emitted stably and safely when current is detected.

[0031] As a further improvement, a metal wire 105 is provided at the input end of the voltage limiting passage 104 a . The metal wire 105 is made of elastic conductive material and is spiral-shaped. The metal wire 105 can contact the exposed wire end of the low-voltage wire extending into the insulating space 102 .

[0032] Specifically, the elastic design allows the movable end of the metal wire 105 to be as close as possible to the opening 103 of the insulating space 102 when the exposed wire end is not inserted into the insulating space 102, thereby ensuring that the metal pressing wire can contact the exposed wire end when the exposed wire end is inserted into the insulating space 102; the spiral design increases the contact area between the metal wire 105 and the exposed wire end, thereby improving the accuracy and reliability of the induced current.

[0033] In summary, the cap body 101 provides an insulating barrier for the exposed ends of the low-voltage wires. When the exposed ends of the low-voltage wires are inserted into the insulating space 102, they come into contact with the metal wire 105. If the low-voltage wire is charged, the circuit of the charged sensing element 104 is connected, and the light-emitting indicator light 104c serves as a response and warning component. It emits light in response at the moment the circuit is connected to remind the operator that the low-voltage wire is charged and to give a timely warning.

[0034] Example 2

[0035] Reference Figure 3 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the cap body 101 includes a trumpet-shaped cap head 101a, and a light-transmitting cap body 101b connected to the small-mouthed end of the trumpet-shaped cap head 101a; the trumpet-shaped cap head 101a can make the exposed wire ends more accurately align with the opening 103 of the insulating space 102, and the light-transmitting cap body 101b allows the operator to more intuitively observe the status of the light-emitting indicator light 104c.

[0036] Specifically, the large end of the trumpet-shaped hat head 101 a is an opening 103 of the insulating space 102 ; the charged induction element 104 is disposed in the insulating space 102 corresponding to the position of the transparent hat body.

[0037] As a further improvement, the trumpet-shaped cap head 101a is made of elastic rubber material so that the insulating cap can adapt to exposed wire ends of different sizes.

[0038] In some embodiments, the trumpet-shaped cap head 101 a can also be made of hard plastic material, and a clamping clip 106 is provided in the insulating space 102 corresponding to the trumpet-shaped cap head 101 a to fix the exposed wire ends of the low-voltage wires extending into the insulating space 102 .

[0039] Specifically, the clamping member includes at least two arc-shaped elastic members 106a arranged opposite to each other, and the gap between the two arc-shaped elastic members 106a forms a guide channel 107 for inserting the exposed wire ends of the low-voltage wires, and the convex parts 106a-1 of the two arc-shaped elastic members 106a are close to each other. After the exposed wire ends of the low-voltage wires are inserted into the insulating space 102, they move along the guide channel 107. Since the end face diameter of the exposed wire ends is larger than the width of the guide channel 107, the arc-shaped elastic members 106a are squeezed to move to both sides during the movement. Since the arc-shaped elastic members 106a themselves have elastic properties, they squeeze the exposed wire ends in the opposite direction, and fix the insulating caps at the exposed wire ends.

[0040] The remaining structures are the same as those of Example 1.

[0041] Example 3

[0042] Reference Figure 1, which is the third embodiment of the present invention, provides a low-voltage line grounding device, including the low-voltage bare wire head insulating cap as described in Examples 1 and 2; and a conductive component 200, which is used to guide current to ground to achieve low-voltage line grounding protection.

[0043] Specifically, the conductive component 200 includes a power transmission cable 201 connected to the charged inductive element 104 and a grounding member 202 disposed at the end of the power transmission cable 201 , wherein the grounding member 202 is selected from an alligator clip, a metal patch, or a grounding rod.

[0044] If the grounding member 202 is an alligator clip, when in use, the alligator clip can be clamped on any surrounding grounding body (such as a shielding wire, grounding metal, or a screen cabinet grounding wire).

[0045] If the grounding piece 202 is a metal patch, when in use, the metal patch is wrapped around the cable shielding layer, or wrapped around any grounding body near the cable, or directly pasted on the surface of the screen cabinet.

[0046] If the grounding member 202 is a grounding rod, when in use, the end of the grounding rod away from the power transmission cable 201 is directly inserted into the ground surface.

[0047] The remaining structure is the same as that of Example 2.

[0048] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A low-voltage bare wire insulation cap, characterized in that: include, A cap assembly (100) comprises a cap body (101) made of an insulating material, wherein the cap body (101) has an insulating space (102) inside and is open at one end (103), wherein a charged induction element (104) capable of sensing current is arranged in the insulating space (102), and the cap body (101) can be sleeved on the outside of an exposed wire end of a low-voltage wire.

2. The low-voltage bare wire insulation cap according to claim 1, characterized in that: The charged inductive element (104) comprises a voltage limiting passage (104a), a current limiting resistor (104b) arranged in series on the voltage limiting passage (104a), and a light-emitting indicator light (104c) arranged in parallel on the voltage limiting passage (104a).

3. The low-voltage bare wire insulation cap according to claim 2, characterized in that: The light-emitting indicator light (104c) is arranged in parallel on the voltage-limiting passage (104a) located behind the tail end of the current-limiting resistor (104b).

4. The low-voltage bare wire insulation cap according to claim 2, characterized in that: The input end of the voltage-limiting passage (104a) is provided with a metal thread (105), the metal thread (105) is made of elastic conductive material and is spiral-shaped, and the metal thread (105) can contact the exposed wire end of the low-voltage wire extending into the insulating space (102).

5. The low-voltage bare wire insulation cap according to claim 1, characterized in that: The cap body (101) comprises a trumpet-shaped cap head (101a) and a light-transmitting cap body (101b) connected to the small opening end of the trumpet-shaped cap head (101a); Wherein, the large opening end of the trumpet-shaped cap head (101a) is an opening (103) of the insulating space (102); The charged induction element (104) is arranged at a position of the insulating space (102) corresponding to the transparent cap body.

6. The low-voltage bare wire insulation cap according to claim 5, characterized in that: The trumpet-shaped cap head (101a) is made of elastic rubber material.

7. The low-voltage bare wire insulation cap according to claim 5, characterized in that: The trumpet-shaped cap head (101a) is made of hard plastic material, and a clamping clip (106) is arranged in the insulating space (102) corresponding to the trumpet-shaped cap head (101a) for fixing the exposed wire ends of the low-voltage wires extending into the insulating space (102).

8. The low-voltage bare wire insulation cap according to claim 7, characterized in that: The clamping member comprises at least two arc-shaped elastic members (106a) arranged opposite to each other, the gap between the two arc-shaped elastic members (106a) forms a guide channel (107) for inserting the exposed wire end of the low-voltage wire, and the convex parts (106a-1) of the two arc-shaped elastic members (106a) are close to each other.

9. A low voltage line grounding device, characterized in that: It comprises a low-voltage bare wire head insulating cap as described in any one of claims 1 to 8; as well as, The conductive component (200) comprises a power transmission cable (201) connected to the charged inductive element (104), and a grounding member (202) arranged at the end of the power transmission cable (201).

10. The low-voltage line grounding device according to claim 9, characterized in that: The grounding element (202) is any one of an alligator clip, a metal patch, and a grounding rod.

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