Quick connecting device for rear plugging head of cable

Abstract

The invention relates to the technical field of electric power construction, in particular to a cable rear plug quick connecting device which comprises a connecting assembly, a connecting screw and a wiring terminal, the connecting assembly comprises a plugging channel, the plugging channel comprises a first direction and a second direction, the connecting screw and the wiring terminal are arranged in the plugging channel, and the wiring terminal is plugged in the plugging channel. And the through hole is formed in the end part of the wiring terminal, and the connecting screw rod penetrates through the through hole and is connected with the wiring terminal. Compared with an original traditional mode that power transmission of a rear plug user can be recovered only by replacing a cable terminal head device when a front plug cable breaks down, the cable rear plug head quick connecting device can enable the rear plug user to be directly connected with a ring main unit and a branch box through the cable rear plug head quick connecting device, faults are quickly isolated, power transmission is recovered, and the cable rear plug head quick connecting device is simple in structure and convenient to use. Direct connection and electrification between the rear plug and the ring main unit / branch box are realized, and the rear plug and the ring main unit / branch box are respectively connected with two ends of the connecting screw rod.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction, and in particular to a cable rear plug-in quick connection device. Background Art

[0002] As the space for urban power construction is increasingly limited and the utilization rate of power equipment is getting higher and higher, it is common to install front and rear plugs in the ring network cabinet / disconnection box at the same time. The cable plug is a connector used in the power transmission system, which is mainly used to connect or disconnect cables with other electrical equipment such as switch cabinets and transformers. In the current actual operation and maintenance work, sudden failures of the front plug sometimes occur, and the rear plug cannot be directly and quickly connected to the ring network cabinet / disconnection box to restore power supply. At present, when the front plug of the cable is damaged, it is necessary to repair the faulty cable of the front plug first and then restore power supply as a whole. This construction method requires a lot of preliminary preparation work, a long preparation time, and many construction processes. In special working environments, other operations are required to realize power supply to important users of the main lines, which is easy to waste a lot of unnecessary time. Summary of the invention

[0003] In view of the above problems existing in the prior art cable rear plug-in quick connection device, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a cable rear plug-in head quick connection device, the purpose of which is to quickly restore power supply when the cable front plug-in head is damaged.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a cable rear plug-in quick connection device, comprising:

[0006] A connection assembly, comprising a plug-in channel, the plug-in channel comprising a first direction and a second direction, a connection screw disposed in the plug-in channel, the connection screw being located in the first direction;

[0007] A wiring terminal is inserted into the insertion channel, the wiring terminal is located in the second direction, and a through hole is provided at the end of the wiring terminal, and the connecting screw passes through the through hole to connect with the wiring terminal;

[0008] The included angle between the first direction and the second direction is not 0.

[0009] As a preferred solution of the cable rear plug-in quick connection device of the present invention, the connection assembly includes a first pipe and a second pipe, wherein the first pipe is vertically arranged with respect to the second pipe.

[0010] As a preferred solution of the cable rear plug-in quick connection device of the present invention, the connecting screw is located in the first pipe, and the connecting terminal is located in the second pipe.

[0011] As a preferred solution of the cable rear plug-in quick connection device of the present invention, wherein: a connecting ring is provided in the first pipe;

[0012] The inner diameter of the connecting ring is smaller than the inner diameter of the first pipe;

[0013] The end of the wiring terminal passes through the first pipe and the connecting ring in sequence, and the connecting screw is located in the connecting ring and connected to the wiring terminal.

[0014] As a preferred solution of the cable rear plug-in connector quick connection device of the present invention, wherein: one end of the wiring terminal is a square column, and the other end is a hollow cylinder, wherein the through hole is located in the square column;

[0015] A limiting component is provided in the through hole, and the limiting component cooperates with the connecting screw.

[0016] As a preferred solution of the cable rear plug-in quick connection device described in the present invention, the top of the square column is provided with a slide groove and a receiving groove, the receiving groove runs through the slide groove, and square blocks are passed through both ends of the receiving groove, and a storage groove is arranged between the receiving groove and the through hole.

[0017] As a preferred solution of the cable rear plug-in head quick connection device described in the present invention, the limiting assembly includes a control part slidably arranged in the slide groove, and an extrusion part arranged in the accommodating groove, and the extrusion part is connected to the control part.

[0018] As a preferred solution of the cable rear plug-in head quick connection device described in the present invention, the control part includes an extrusion rod slidably set in the slide groove, two spring sheets set at the bottom of the extrusion rod, and a limit block set in the accommodating groove, and the limit block is located between the two spring sheets.

[0019] As a preferred solution of the cable rear plug-in head quick connection device of the present invention, wherein: the control part includes two clamping frames respectively arranged at the bottom of the two spring sheets, one end of the clamping frame is located in the accommodating groove, and the other end is located in the through hole;

[0020] A limiting groove cooperating with one of the clamping frames is provided at the bottom of the accommodating groove, and a limiting area cooperating with the limiting groove is provided in the clamping frame;

[0021] An extrusion block matched with the clamping frame is arranged in the through hole, and an inserting area is arranged at the end of the clamping frame located in the through hole.

[0022] As a preferred solution of the cable rear plug-in quick connection device described in the present invention, the connecting screw includes a fixing area and a first connecting area and a second connecting area arranged at both ends of the fixing area, the inner diameter of the first connecting area is larger than that of the fixing area and the second connecting area, and a fixing groove is provided on the fixing area.

[0023] Beneficial effects of the present invention: Compared with the traditional method in which a front-plug cable failure requires the replacement of the cable terminal head device to restore power supply to the rear-plug users, the present connection device allows the rear-plug users to be directly connected to the ring network cabinet and the branch box through the device, quickly isolate the fault, and restore power supply, thereby achieving direct connection and power supply between the rear-plug head and the ring network cabinet / branch box, and the rear-plug head and the ring network cabinet / branch box are respectively connected to the two ends of the connecting screw, which can change the existing operating procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the cable rear plug-in quick connection device of the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the connection assembly of the cable rear plug-in head quick connection device of the present invention.

[0027] Figure 3 The present invention is a schematic diagram of the sealing plug structure of the cable rear plug quick connection device.

[0028] Figure 4 The present invention is a schematic diagram of the wiring terminal structure of the cable rear plug-in head quick connection device.

[0029] Figure 5 It is a schematic structural diagram of the control part of the cable rear plug-in head quick connection device of the present invention.

[0030] Figure 6 for Figure 5 A magnified image of area A. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Example 1, reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a cable rear plug-in quick connection device, which includes a connection component 100 and a terminal block 200.

[0036] Among them, the connecting component 100 includes an insertion channel M, the insertion channel M includes a first direction and a second direction, and a connecting screw 101 is arranged in the insertion channel M. The connecting screw 101 is located in the first direction, and the angle between the first direction and the second direction is not 0. Preferably, the first direction and the second direction are arranged vertically.

[0037] The connecting terminal 200 is inserted into the plug-in channel M. The connecting terminal 200 is located in the second direction. A through hole 201 is provided at the end of the connecting terminal 200. The connecting screw 101 passes through the through hole 201 and is connected to the connecting terminal 200. The connecting screw 101 and the through hole 201 can be fixedly connected by a thread.

[0038] Furthermore, the connecting component 100 includes a first pipe 102 and a second pipe 103, wherein the first pipe 102 and the second pipe 103 are vertically arranged, and the connecting screw 101 is located in the first pipe 102, and the connecting terminal 200 is located in the second pipe 103, wherein the space between the first pipe 102 and the second pipe 103 constitutes a plug-in channel M.

[0039] Furthermore, a connecting ring 104 is provided in the first pipe 102; the inner diameter of the connecting ring 104 is smaller than the inner diameter of the first pipe 102;

[0040] The end of the terminal block 200 passes through the first pipe 102 and the connecting ring 104 in sequence, and the connecting screw 101 is located in the connecting ring 104 and connected to the terminal block 200, wherein the bottom of the terminal block 200 is connected to the cable, and the two ends of the first pipe 102 are respectively provided for the rear plug-in head and the ring main unit / distribution box to be inserted, wherein when the rear plug-in head and the ring main unit / distribution box are respectively inserted into the two ends of the first pipe 102, they can be threadedly connected with the connecting screw 101 therein.

[0041] When in use, the stress cone, the terminal block 200 and the cable are installed in accordance with the regulations, the end of the terminal block 200 is inserted into the second pipe 103, and penetrates into the first pipe 102, the connecting screw 101 is connected, and then the ring main unit / distribution box is inserted into the first pipe 102 to connect with the connecting screw 101; after the above work is completed, the rear plug is inserted into the other end of the first pipe 102, so that it is connected with the connecting screw 101, and thus connected with the ring main unit / distribution box. The above operations are all closed-power operations.

[0042] In traditional work, it takes at least 5 hours and at most 7 hours to complete the repair of the front plug-in head failure. After using this device for quick connection, it only takes 2 hours, saving 3 to 4 hours for a single operation, greatly improving work efficiency.

[0043] Example 2, reference Figure 3 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a closing plug 400 is provided at the bottom of the second pipe 103, wherein a terminal placement groove N is provided in the first pipe 102, wherein the terminal placement groove N includes three sections of grooves, which match the shape of the wiring terminal 200, wherein the wiring terminal 200 is inserted into the terminal placement groove N after the cable and the stress cone are installed, and the wiring terminal 200 is inserted into the first pipe 102, wherein the terminal placement groove N and the internal space of the first pipe 102 form a plug-in channel M.

[0044] The closing plug 400 includes a dustproof end head 401 and a disassembly head 402 at the bottom, wherein the dustproof end head 401 cooperates with the terminal placement groove N and is inserted into the terminal placement groove N to fill the entire second pipe 103 .

[0045] Among them, when the closing plug 400 is changed in the cable connection line and the cable corresponding to the original front plug cannot be used or is temporarily unused, it can also be used as an end sealing plug, so that the rear plug can be directly connected to the ring network cabinet / distribution box casing through the device.

[0046] The remaining structures are the same as those of Example 1.

[0047] Example 3, reference Figure 4-Figure 6, which is the third embodiment of the present invention. This embodiment is different from the first embodiment in that one end of the terminal block 200 is a square column 202, and the other end is a hollow cylinder 203, wherein the through hole 201 is located in the square column 202; a limiting component 300 is provided in the through hole 201, and the limiting component 300 cooperates with the connecting screw 101.

[0048] The top of the square column 202 is provided with a slide groove 202a and a receiving groove 202b. The receiving groove 202b runs through the slide groove 202a, and square blocks are passed through both ends of the receiving groove 202b, and a receiving groove 202c is set between the receiving groove 202b and the through hole 201.

[0049] Furthermore, the limiting assembly 300 includes a control portion 301 slidably disposed in the slide groove 202 a , and a pressing portion 302 disposed in the receiving groove 202 b , and the pressing portion 302 is connected to the control portion 301 .

[0050] The control unit 301 includes an extrusion rod 301a slidably set in the slide groove 202a, two spring sheets 301b set at the bottom of the extrusion rod 301a, and a limit block 301c set in the accommodating groove 202b, wherein the limit block 301c is located between the two spring sheets 301b, wherein the two spring sheets 301b are respectively in contact with two ends of the limit block 301c, and when the extrusion rod 301a is pressed to move toward the limit block 301c, the two spring sheets 301b are squeezed to expand outward, and when the pressing stops, under the elastic force of the two spring sheets 301b, the two spring sheets 301b approach each other and drive the extrusion rod 301a to rise.

[0051] The control unit 301 includes two clamping frames 302a respectively arranged at the bottom of the two spring sheets 301b, one end of the clamping frame 302a is located in the accommodating groove 202b, and the other end is located in the through hole 201; the clamping frame 302a is U-shaped, and the end of the clamping frame 302a located in the through hole 201 has better elasticity.

[0052] A limiting groove 202b-1 cooperating with one of the clamping frames 302a is provided at the bottom of the accommodating groove 202b, and a limiting area 302b cooperating with the limiting groove 202b-1 is provided in the clamping frame 302a; when the extrusion rod 301a moves toward the limiting block 301c, the two spring pieces 301b will move the two clamping frames 302a outward until the limiting area 302b of one of the supporting frames is inserted into the limiting groove 202b-1, thereby completing the fixation of the two clamping frames 302a.

[0053] Among them, in the initial state, the ends of the two clamping frames 302a are retracted in the receiving groove 202c. At this time, the two clamping frames 302a do not exceed the square frame, and the square frame can be smoothly inserted from the second pipe 103 into the first pipe 102. When the square frame is inserted into the first pipe 102, the extrusion rod 301a on the top of the square frame will abut against the connecting ring 104, so that the extrusion column shrinks in the slide groove 202a and moves toward the limit block 301c, thereby expanding the two spring pieces 301b outward to drive the two clamping frames 302a to extend out of the receiving groove 202b.

[0054] An extrusion block 201 a matched with the clamping frame 302 a is arranged in the through hole 201 , and an insertion area 302 c is arranged at the ends of the two clamping frames 302 a located in the through hole 201 .

[0055] Furthermore, the connecting screw 101 includes a fixing area and a first connecting area 101a and a second connecting area 101b arranged at both ends of the fixing area, the inner diameter of the first connecting area 101a is larger than that of the fixing area and the second connecting area 101b, and a fixing groove 101c is provided on the fixing area, wherein the first connecting area 101a and the second connecting area 101b are provided with threads, and are respectively connected to the ring network cabinet / distribution box and the rear plug-in head, wherein when the terminal block 200 is inserted into the first pipe 102, the connecting screw 101 is installed, wherein the connecting screw 101 is inserted into the first pipe 102, wherein the second connecting area 101b and the fixing area are both inserted into the through hole 201, and the end of the first connecting area 101a is connected to the clamping frame having a limit area 302b. The ends of the clamping frame 302a are against each other, thereby pushing the clamping frame 302a. At this time, the limiting area 302b of the clamping frame 302a is separated from the limiting groove 202b-1 under the push of the external force. The two clamping frames 302a are brought together and retracted into the contraction groove under the elastic force of the spring piece 301b, and the bottom of the clamping frame 302a is deformed under the action of the extrusion block 201a, thereby driving the plugging area 302c to contact and abut against the fixing area. At this time, the connection screw 101 can be fixed. At the same time, the connection screw 101 is rotated. When the plugging area 302c coincides with the fixing groove 101c, the plugging area 302c will be inserted into the fixing groove 101c, so that the connection screw 101 can be fixed more firmly, and the connection screw 101 can be quickly installed;

[0056] Among them, when plugging in the connecting screw 101, it is only necessary to press the control extrusion column against the connecting ring 104 so that the two clamping frames 302a extend, and the connecting screw 101 can be removed and pulled out, and the end of the clamping frame 302a can be squeezed with the end of the second connecting area 101b again to retract the clamping frame 302a into the shrinkage groove, so as to facilitate pulling the terminal 200 out of the first pipe 102.

[0057] The remaining structures are the same as those of Example 1.

[0058] When in use, the stress cone, the terminal block 200 and the cable are installed in sequence according to the regulations, the end of the terminal block 200 is inserted into the second pipe 103, and penetrates into the first pipe 102, the connecting screw 101 is connected, and then the ring main unit / distribution box is inserted into the first pipe 102 to connect with the connecting screw 101; after the above work is completed, the rear plug is inserted into the other end of the first pipe 102 to connect it with the connecting screw 101, thereby connecting with the ring main unit / distribution box.

[0059] 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.

[0060] 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.

[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 cable rear plug-in quick connection device, characterized in that: include, A connection assembly (100), comprising a plug-in channel (M), the plug-in channel (M) comprising a first direction and a second direction, a connection screw (101) arranged in the plug-in channel (M), the connection screw (101) being located in the first direction; A wiring terminal (200) plugged into the plugging passage (M), the wiring terminal (200) being located in the second direction, a through hole (201) being provided at the end of the wiring terminal (200), the connecting screw (101) passing through the through hole (201) to be connected to the wiring terminal (200); The included angle between the first direction and the second direction is not 0.

2. The cable rear plug quick connection device according to claim 1, characterized in that: The connection assembly (100) comprises a first pipe (102) and a second pipe (103), wherein the first pipe (102) and the second pipe (103) are vertically arranged.

3. The cable rear plug quick connection device according to claim 2, characterized in that: The connecting screw (101) is located in the first pipe (102), and the connecting terminal (200) is located in the second pipe (103).

4. The cable rear plug quick connection device according to claim 2 or 3, characterized in that: A connecting ring (104) is provided in the first pipe (102); The inner diameter of the connecting ring (104) is smaller than the inner diameter of the first pipe (102); The end of the connecting terminal (200) passes through the first pipe (102) and the connecting ring (104) in sequence, and the connecting screw (101) is located in the connecting ring (104) and connected to the connecting terminal (200).

5. The cable rear plug quick connection device according to claim 4, characterized in that: One end of the connection terminal (200) is a square column (202), and the other end is a hollow cylinder (203), wherein the through hole (201) is located in the square column (202); A limiting assembly (300) is provided in the through hole (201), and the limiting assembly (300) cooperates with the connecting screw (101).

6. The cable rear plug quick connection device according to claim 5, characterized in that: The top of the square column (202) is provided with a slide groove (202a) and a receiving groove (202b), the receiving groove (202b) passes through the slide groove (202a), and square blocks are passed through the two ends of the receiving groove (202b), and a receiving groove (202c) is arranged between the receiving groove (202b) and the through hole (201).

7. The cable rear plug quick connection device according to claim 6, characterized in that: The limiting assembly (300) comprises a control portion (301) slidably disposed in the sliding groove (202a), and an extrusion portion (302) disposed in the receiving groove (202b), wherein the extrusion portion (302) is connected to the control portion (301).

8. The cable rear plug quick connection device according to claim 7, characterized in that: The control part (301) comprises an extrusion rod (301a) slidably arranged in the slide groove (202a), two spring sheets (301b) arranged at the bottom of the extrusion rod (301a), and a limit block (301c) arranged in the accommodating groove (202b), wherein the limit block (301c) is located between the two spring sheets (301b).

9. The cable rear plug quick connection device according to claim 8, characterized in that: The control part (301) comprises two clamping frames (302a) respectively arranged at the bottom of the two spring sheets (301b), one end of the clamping frame (302a) is located in the receiving groove (202b), and the other end is located in the through hole (201); The bottom of the accommodating groove (202b) is provided with a limiting groove (202b-1) that cooperates with one of the clamping frames (302a), and the clamping frame (302a) is provided with a limiting area (302b) that cooperates with the limiting groove (202b-1); An extrusion block (201a) matched with the clamping frame (302a) is provided in the through hole (201), and an insertion area (302c) is provided at the end of the clamping frame (302a) located in the through hole (201).

10. The cable rear plug quick connection device according to any one of claims 5 to 9, characterized in that: The connecting screw (101) comprises a fixing area and a first connecting area (101a) and a second connecting area (101b) arranged at both ends of the fixing area, the inner diameter of the first connecting area (101a) is larger than that of the fixing area and the second connecting area (101b), and a fixing groove (101c) is provided on the fixing area.

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