Universal extension cord for secondary electrical plug

Abstract

The invention discloses a general extension cord for a secondary electrical plug, and relates to the technical field of plug extension cords, in particular to a detachable general extension cord for a secondary electrical plug of a trolley switch, which comprises a first jointing clamp and a second jointing clamp movably connected with the first jointing clamp, the first jointing clamp and the second jointing clamp can be connected through a first elastic piece. The beneficial effects of the invention are that the circuit breaker trolley is connected with control, energy storage, signal and other loops through the test extension line, and the operation state of the circuit breaker trolley does not need to be converted, thereby greatly reducing the operation time and operation risks, reducing the waiting time for maintenance personnel, increasing the maintenance time, and greatly improving the field work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plug extension cords, in particular to a detachable universal extension cord for a secondary electrical plug of a trolley switch. Background Art

[0002] The secondary electrical plug of the circuit breaker trolley in the prior art can only be plugged in and out when in the isolation position, and the operator needs to push the circuit breaker trolley into the cabinet when moving from the maintenance position to the isolation position, which increases the operating risk of the operator and prolongs the power outage time.

[0003] Therefore, we designed a universal extension cord for secondary electrical plugs, which can connect the control, energy storage, signal and other circuits of the circuit breaker trolley through the test extension cord, thereby meeting the work requirements of different professions. There is no need to switch the operating state of the circuit breaker trolley, which greatly reduces the operation time and operation risks. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a universal extension cord for a secondary electrical plug, which can connect the control, energy storage, signal and other circuits of a circuit breaker trolley through a test extension cord.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a universal extension cord for a secondary electrical plug, comprising a first wiring clamp and a second wiring clamp movably connected to the first wiring clamp; the first wiring clamp and the second wiring clamp can be connected by a first elastic member.

[0008] As a preferred solution of the universal extension cord of the secondary electrical plug described in the present invention, wherein: the first wiring clamp includes a wiring rod and a wiring shaft arranged on one side of the wiring rod; the second wiring clamp includes an installation shaft movably connected to the wiring rod, and a connecting shaft arranged on one side of the installation shaft.

[0009] As a preferred solution of the universal extension cord for secondary electrical plugs of the present invention, a first wire hole and a wire groove are provided on the inner side of the wiring shaft, and the wire groove is connected to the first wire hole.

[0010] As a preferred solution of the universal extension cord for secondary electrical plugs of the present invention, a first groove is arranged on the outer side of the wiring shaft, a first fixing groove is arranged in the first groove, and the first fixing groove is connected to the wiring groove.

[0011] As a preferred solution of the universal extension cord for secondary electrical plugs of the present invention, a mounting groove is provided on one side of the mounting shaft, a guide groove is provided on the outside of the mounting groove, and a connecting rod is movably connected in the mounting groove.

[0012] As a preferred solution of the universal extension cord for secondary electrical plugs of the present invention, the inner diameter of the installation groove is larger than the diameter of the connection rod.

[0013] As a preferred solution of the universal extension cord for secondary electrical plugs of the present invention, a second wire hole and a connection groove are provided on the inner side of the connection shaft, and the second wire hole is connected to the connection groove.

[0014] As a preferred solution of the universal extension cord for secondary electrical plugs of the present invention, a second groove is arranged on the outer side of the connecting shaft, a second fixing groove is arranged in the second groove, and the second fixing groove is connected to the connecting groove.

[0015] As a preferred solution of the universal extension cord for secondary electrical plugs described in the present invention, a card slot is provided on the outer side of the installation shaft, a slope is provided on the side of the card slot close to the connecting shaft, and the card slot is connected to the installation slot.

[0016] As a preferred solution of the universal extension cord of the secondary electrical plug described in the present invention, one side of the first elastic member is fixedly connected to the inner wall of the slot, the other side of the first elastic member is movably connected to the slot, and the movable end of the first elastic member abuts against the connecting rod.

[0017] Beneficial effects of the present invention: The present invention connects the control, energy storage, signal and other circuits of the circuit breaker trolley through the test extension line, and there is no need to switch the operating state of the circuit breaker trolley, which greatly reduces the operation time and operation risk, reduces the waiting time and increases the maintenance time for maintenance personnel, and greatly improves the on-site work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

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

[0020] Figure 2 for Figure 1 A is an enlarged view of the middle image.

[0021] Figure 3It is a front view of the present invention.

[0022] Figure 4 for Figure 3 Cross-section view from medium AA perspective.

[0023] Figure 5 It is a schematic structural diagram of the first connecting clamp in the present invention.

[0024] Figure 6 It is a schematic structural diagram of the second connecting clamp in the present invention. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] 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.

[0027] 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 is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figure 1 , which is the first embodiment of the present invention, provides a universal extension cord for a secondary electrical plug, which includes a first wiring clamp 100, a second wiring clamp 200, and a first elastic member 300. By setting the first elastic member 300, the first wiring clamp 100 and the second wiring clamp 200 are connected together, and the first wiring clamp 100 and the second wiring clamp 200 are respectively connected to the wires to connect the control, energy storage, signal and other circuits of the circuit breaker trolley.

[0030] Furthermore, the first wiring clip 100 and the second wiring clip 200 movably connected to the first wiring clip 100 ; the first wiring clip 100 and the second wiring clip 200 can be connected by means of the first elastic member 300 .

[0031] The first wiring clamp 100 and the second wiring clamp 200 are connected to the wires respectively, and then the first wiring clamp 100 and the second wiring clamp 200 are connected together, so as to realize the connection of the control, energy storage, signal and other circuits of the circuit breaker trolley. The first wiring clamp 100 and the second wiring clamp 200 are then fixed by the first elastic member 300 to prevent them from falling off. The first elastic member 300 is an elastic sheet, which is arranged at the connection gap between the first wiring clamp 100 and the second wiring clamp 200, so that the first wiring clamp 100 and the second wiring clamp 200 are fixed to realize the connection of the circuit.

[0032] In summary, by providing the first wiring clamp 100, the second wiring clamp 200 and the first elastic member 300, the control, energy storage, signal and other circuits of the trolley are connected. The present invention has strong versatility, is easy to store and carry, reduces time waste and equipment loss caused by frequent operation of the equipment, and is expected to save 1.5-2 hours of single-interval power outage maintenance time and improve power supply reliability.

[0033] Example 2

[0034] Reference Figures 1 to 6 , which is the second embodiment of the present invention, and is different from the first embodiment in that: it also includes. In the previous embodiment, the universal extension cord of the secondary electrical plug includes a first wiring clamp 100 including a wiring rod 101, and a wiring shaft 102 arranged on one side of the wiring rod 101; a second wiring clamp 200 includes a mounting shaft 201 movably connected to the wiring rod 101, and a connecting shaft 202 arranged on one side of the mounting shaft 201.

[0035] The wiring shaft 102 and the connecting shaft 202 are used to clamp the wires, and the wires are electrically connected to the end of the wiring rod 101 and the inside of the installation shaft 201. The end of the wiring rod 101 is inserted into the inside of the installation shaft 201 to connect the two wires together so that the circuit is connected. The first wiring clamp 100 and the second wiring clamp 200 can be quickly installed and removed, which improves the convenience of use.

[0036] Furthermore, a first wire hole 102a and a wire groove 102b are provided on the inner side of the wire shaft 102, and the wire groove 102b is connected to the first wire hole 102a.

[0037] The design of the first wire hole 102a can reduce the contact between the wire and the wiring slot 102b, and can facilitate the smooth insertion of the wire into the wiring slot 102b. The wire is inserted into the wiring slot 102b and contacts the inner wall of the wiring slot 102b.

[0038] Furthermore, a first groove 102c is disposed on the outer side of the connecting shaft 102, a first fixing groove 102d is disposed in the first groove 102c, and the first fixing groove 102d is connected to the connecting groove 102b.

[0039] Among them, the first groove 102c is used to facilitate the operator to use the first wiring clamp, prevent the staff from dropping it during use, and improve the safety of the first wiring clamp 100. The first groove 102c is provided with a slope on the side close to the outside, which can improve the appearance of the product and increase the comfort of use for the staff. A wire fixing device is provided in the first fixed groove 102d, which is used to fix the wire inside the wiring groove 102b. In the present invention, the wire fixing device can be set as an elastic rod slidably connected to the first fixed groove 102d, and the wire is fixed by extrusion, or it can be set as a ball valve matched with the first fixed groove 102d, so as to achieve the fixation of the wire.

[0040] Preferably, a mounting groove 201a is provided on one side of the mounting shaft 201, a guide groove 201b is provided on the outer side of the mounting groove 201a, and a connecting rod 101 is movably connected in the mounting groove 201a.

[0041] Among them, the inner side of the guide groove 201b is provided with an inclined surface, which can facilitate the insertion of the connecting rod 101 while ensuring the strength of the overall structure, and can facilitate the rapid installation and disassembly of the device, and facilitate the circuit connection of the circuit breaker trolley at the maintenance position. The control, energy storage, signal and other circuits of the circuit breaker trolley are quickly connected, which greatly facilitates maintenance.

[0042] Preferably, a second wire hole 202a and a connection groove 202b are provided inside the connection shaft 202, and the second wire hole 202a is connected to the connection groove 202b.

[0043] The design of the second wire hole 202a can reduce the contact between the wire and the connection groove 202b, and can facilitate the smooth insertion of the wire into the connection groove 202b. The wire is inserted into the connection groove 202b and contacts the inner wall of the connection groove 202b.

[0044] Furthermore, a second groove 202c is provided on the outer side of the connecting shaft 202, a second fixing groove 202d is provided in the second groove 202c, and the second fixing groove 202d is connected to the connecting groove 202b.

[0045] Among them, the second groove 202c is used to facilitate the operator to use the first wiring clamp, prevent the staff from dropping it during use, and improve the safety of the second wiring clamp 200. The second groove 202c is provided with a slope on the side close to the outside, which can improve the appearance of the product and increase the comfort of use for the staff. A wire fixing device is provided in the second fixing groove 202d, which is used to fix the wire inside the connecting groove 202b. In the present invention, the wire fixing device can be set as an elastic rod slidably connected to the second fixing groove 202d, and the wire is fixed by extrusion, or it can be set as a ball valve matched with the second fixing groove 202d, so as to achieve the fixation of the wire.

[0046] Operation process: When in use, connect the two ends of the disconnect circuit to the wiring slot 102b and the connection slot 202b respectively, and then insert the wiring rod 101 into the installation slot 201a to complete the connection of the disconnect circuit. It is convenient to install and disassemble the wiring rod 101 and the installation slot 201a during maintenance to achieve rapid connection and disconnection of the circuit, which is convenient for maintenance.

[0047] In summary, by providing a wiring groove 102b and a connecting groove 202b at the ends of the first wiring clamp 100 and the second wiring clamp 200, the wires can be fixed, and the wiring rod 101 and the installation groove 201a can conveniently connect the two wires to achieve the connection of the control, energy storage, signal and other circuits of the trolley.

[0048] Example 3

[0049] Reference Figures 1 to 6 , which is the third embodiment of the present invention, is different from the first two embodiments in that the inner diameter of the mounting groove 201a is larger than the diameter of the connecting rod 101.

[0050] Among them, the inner diameter of the installation groove 201a is larger than the diameter of the wiring rod 101, which can reduce the friction resistance during installation, making it easier to insert and remove the wiring rod from the installation groove, improving the convenience of installation and removal, and can also reduce the contact area between the wiring rod and the installation groove, thereby reducing wear and extending the service life of the product. At the same time, the material will expand and contract due to temperature changes. The larger inner diameter can provide a certain space for the wiring rod to adapt to the size changes caused by temperature changes, avoid damage or functional disorders caused by expansion, and can also reduce electrical problems caused by poor contact, such as short circuit or leakage, thereby improving the safety of electrical connections.

[0051] Furthermore, a clamping groove 201 c is provided on the outer side of the installation shaft 201 , and a slope 201 c - 1 is provided on a side of the clamping groove 201 c close to the connecting shaft 202 , and the clamping groove 201 c is connected to the installation groove 201 a .

[0052] The slot 201c is used to fix the first elastic member 300 to ensure its stability during the connection and disconnection process; the design of the slot allows the elastic sheet to be reliably fixed in place, reducing connection problems caused by poor contact or accidental movement. The slot 201c allows the first elastic member 300 to be movably connected therein, so that the wiring rod 101 can abut against the elastic sheet 300, thereby achieving a good electrical connection. The inclined surface 201c-1 provides a smooth transition, reducing resistance during installation.

[0053] Furthermore, one side of the first elastic member 300 is fixedly connected to the inner wall of the slot 201 c , and the other side of the first elastic member 300 is movably connected to the slot 201 c , and the movable end of the first elastic member 300 abuts against the connecting rod 101 .

[0054] The first elastic member 300 includes a first inclined surface fixedly connected to the inner wall of the card slot 201c, the first inclined surface is arranged obliquely downward, the other end of the first inclined surface is provided with a second inclined surface arranged obliquely upward, the other side of the second inclined surface is provided with a third inclined surface arranged obliquely downward, and the other side of the third inclined surface is provided with a fourth inclined surface arranged horizontally. The connection between the first inclined surface and the second inclined surface will contact the surface of the wiring rod 101 inserted into the installation slot 201a, thereby providing a downward force to the wiring rod 101, and playing a role in fixing the wiring rod 101. The connection between the second inclined surface and the third inclined surface does not contact the surface of the wiring rod 101, and the user provides pressing or pushing to drive the first elastic member 300 to fix or unlock the wiring rod 101. The connection between the third inclined surface and the fourth inclined surface, together with the fourth inclined surface, contacts the surface of the wiring rod 101, and plays a role in fixing the wiring rod 101.

[0055] In the present invention, the connection rod 101 and the installation groove 201a can also be fixed by a fixing ring, which is arranged at the guide groove 201b and fixes the connection rod 101 and the installation groove 201a by extrusion.

[0056] Operation process: After the connection rod 101 is inserted into the installation slot 201a, the first elastic member 300 is pressed to insert the movable end of the first elastic member 300 into the gap between the slot 201c and the connection rod 101, and the connection rod 101 is fixed in the installation slot 201a. When the connection rod 101 needs to be released, the first elastic member 300 is pushed to move the movable end of the first elastic member 300 out of the gap between the slot 201c and the connection rod 101.

[0057] In summary, by providing the wiring shaft 102 and the connecting shaft 202 for clamping the wire, and the design of connecting the end of the wiring rod 101 with the inside of the installation shaft 201, quick installation and disassembly are achieved, and the convenience of use is improved.

[0058] 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, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, 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 described herein that performs the function, 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.

[0059] 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.

[0060] 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.

[0061] 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 universal extension cord for secondary electrical plugs, characterized in that: include, A first wiring clamp (100), and a second wiring clamp (200) movably connected to the first wiring clamp (100); The first connecting clamp (100) and the second connecting clamp (200) can be connected by means of a first elastic member (300).

2. The universal extension cord for secondary electrical plugs as claimed in claim 1, characterized in that: The first wiring clamp (100) comprises a wiring rod (101) and a wiring shaft (102) arranged on one side of the wiring rod (101); the second wiring clamp (200) comprises a mounting shaft (201) movably connected to the wiring rod (101) and a connecting shaft (202) arranged on one side of the mounting shaft (201).

3. The universal extension cord for secondary electrical plugs as claimed in claim 2, characterized in that: A first wire hole (102a) and a wire groove (102b) are provided on the inner side of the wiring shaft (102), and the wire groove (102b) is connected to the first wire hole (102a).

4. The universal extension cord for secondary electrical plugs as claimed in claim 3, characterized in that: A first groove (102c) is arranged on the outer side of the wiring shaft (102), a first fixing groove (102d) is arranged inside the first groove (102c), and the first fixing groove (102d) is connected to the wiring groove (102b).

5. The universal extension cord for secondary electrical plugs as claimed in claim 4, characterized in that: A mounting groove (201a) is provided on one side of the mounting shaft (201), a guide groove (201b) is provided outside the mounting groove (201a), and a connecting rod (101) is movably connected inside the mounting groove (201a).

6. The universal extension cord for secondary electrical plugs as claimed in claim 5, characterized in that: A second wire hole (202a) and a connection groove (202b) are provided inside the connection shaft (202), and the second wire hole (202a) is in conduction with the connection groove (202b).

7. The universal extension cord for secondary electrical plugs as claimed in claim 6, characterized in that: The inner diameter of the installation groove (201a) is greater than the diameter of the connecting rod (101).

8. The universal extension cord for secondary electrical plugs as claimed in claim 7, characterized in that: A second groove (202c) is arranged on the outer side of the connecting shaft (202), a second fixing groove (202d) is arranged in the second groove (202c), and the second fixing groove (202d) is connected to the connecting groove (202b).

9. The universal extension cord for secondary electrical plugs as claimed in claim 8, characterized in that: A clamping groove (201c) is provided on the outer side of the installation shaft (201), a slope (201c-1) is provided on a side of the clamping groove (201c) close to the connection shaft (202), and the clamping groove (201c) is connected to the installation groove (201a).

10. The universal extension cord for secondary electrical plugs as claimed in claim 9, characterized in that: One side of the first elastic member (300) is fixedly connected to the inner wall of the slot (201c), the other side of the first elastic member (300) is movably connected to the slot (201c), and the movable end of the first elastic member (300) is in contact with the connecting rod (101).

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