Wiring terminal with anti-loosening structure

Abstract

The utility model relates to the technical field of wire connecting equipment, and provides a wiring terminal with an anti-loosening structure, which comprises an insulating shell, a connecting piece, a connecting piece, a connecting piece, a connecting piece, a connecting piece, a connecting piece and an anti-loosening structure, and is characterized in that the insulating shell is internally provided with an accommodating cavity and the top is provided with a wire inlet hole; the anti-loosening structure is horizontally and movably arranged at the upper part of the accommodating cavity and is used for fixing the cable inserted from the wire inlet hole; the frame-shaped piece is horizontally and movably arranged at the lower part of the accommodating cavity and is used for fixing a cable core of the cable; and the screw is rotationally arranged in a round hole formed in the outer side wall of the insulating shell, and one end of the screw extends into the accommodating cavity and is in threaded connection with the frame-shaped piece. According to the utility model, through cooperation of the anti-loosening structure and the frame-shaped member, double fastening of the cable and the wire core is realized, and the cable cannot be loosened freely even if the cable is subjected to electromagnetic vibration generated by operation of electrical equipment or accidental touch of a worker, so that equipment shutdown faults caused by loosening of the cable are effectively avoided; meanwhile, the fastening state of the wiring terminal is effectively guaranteed through double fastening of the cable and the wire core, the workload during maintenance can be reduced, and the consumption of manpower and material resources is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire connection equipment, in particular to a wiring terminal with an anti-loosening structure. Background Art

[0002] At present, the electrical cabinets in the power distribution room often need to install many closely arranged and uniformly shaped wiring terminals to connect the secondary control circuit. Conventional wiring terminals are all installed with a slider in the terminal block, and then the slider is pushed by screws to press the wire core tightly and fix it in the terminal block, so as to achieve the function of switching on and off the electrical signal.

[0003] In actual use, the terminal is fixed with only a single screw, which is easily loosened by electromagnetic vibrations generated by the operation of electrical equipment or accidental contact by workers, resulting in poor cable contact, which has a great impact on the stable operation of the equipment and the continuous production. In addition, in order to keep the terminal tight, each terminal needs to be checked and tightened again indiscriminately during maintenance, which not only consumes a lot of manpower and material resources, but also the repeated tightening of a large number of terminals may cause the screws to slip or miss tightening, resulting in losses caused by untimely tightening. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a terminal block with an anti-loosening structure to solve the problem that the prior terminal block is fixed with only a single screw and is easy to loosen, resulting in poor cable contact, which has a great impact on the stable operation of the equipment and the continuous production.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wiring terminal with an anti-loosening structure, comprising:

[0007] An insulating shell, wherein a receiving cavity is provided inside and a wire inlet hole communicating with the receiving cavity is provided on the top;

[0008] An anti-loosening structure, horizontally movably arranged at the upper part of the accommodating cavity, used to fix the cable inserted from the cable entry hole;

[0009] A frame-shaped member, horizontally movably disposed at the lower part of the accommodating cavity, for fixing the core of the cable; and

[0010] The screw is rotatably arranged in a circular hole provided on the outer side wall of the insulating shell, and one end of the screw extends into the accommodating cavity and is threadedly connected with the frame-shaped member.

[0011] In one embodiment disclosed in the present application, the anti-loosening structure includes a pressure rod, a fixing block and an elastic member;

[0012] One end of the pressure rod is connected to a button after sliding through the outer wall of the insulating shell, and the other end is connected to the fixing block;

[0013] The fixing block is provided with a wire hole corresponding to the wire entry hole;

[0014] The two ends of the elastic member are respectively connected with the fixing block and the insulating shell on the side of the accommodating cavity.

[0015] In an embodiment disclosed in the present application, the fixing block is made of insulating material.

[0016] In an embodiment disclosed in the present application, the elastic member is a spring.

[0017] In one embodiment disclosed in the present application, the outer surface of the button is green.

[0018] In one embodiment disclosed in the present application, the anti-loosening structure, the frame-shaped member and the screw are symmetrically provided with two each;

[0019] The two frame-shaped members are electrically connected via a connecting piece that is embedded in the insulating shell and is fixed.

[0020] In an embodiment disclosed in the present application, both ends of the connecting piece are U-shaped structures, one side of the U-shaped structure is located outside the frame-shaped member, and the other side is inserted into the frame-shaped member from below the frame-shaped member.

[0021] In one embodiment disclosed in the present application, the insulating housing located between the two frame-shaped members is provided with a spacing area for exposing the connecting piece;

[0022] A threaded hole is provided in the middle of the connecting piece for connecting a plurality of connecting terminals in parallel.

[0023] In one embodiment disclosed in the present application, a special-shaped slot is provided at the bottom of the insulating housing for fixing the wiring terminal to a guide rail in the electrical panel cabinet.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] Through the cooperation of the anti-loosening structure and the frame-shaped parts, the double fastening of the cables and the wire cores is achieved. Even if the cables are subjected to electromagnetic vibrations generated by the operation of electrical equipment or accidental contact by workers, they cannot loosen freely, thereby effectively avoiding equipment downtime caused by loose cables. At the same time, the double fastening of the cables and the wire cores effectively ensures the fastening state of the terminal blocks, which can reduce the workload during maintenance and greatly reduce the consumption of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the main structure of the utility model in a loose state;

[0028] Figure 2 This is a schematic diagram of the main structure of the utility model in a fastened state;

[0029] Figure 3 It is a side view structural schematic diagram of the utility model;

[0030] Figure 4 It is a schematic diagram of the top structure of the utility model. DETAILED DESCRIPTION

[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0037] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0038] See also Figure 1 to Figure 4 As shown, the utility model provides a wiring terminal with an anti-loosening structure, comprising:

[0039] The insulating housing 10 has a receiving cavity 11 inside and a wire inlet hole 12 on the top that communicates with the receiving cavity 11;

[0040] The anti-loosening structure 20 is horizontally movably disposed on the upper part of the accommodating cavity 11 and is used to fix the cable inserted from the cable entry hole 12;

[0041] A frame-shaped member 30 is horizontally movably disposed at the lower part of the accommodating cavity 11 and is used to fix the core of the cable; and

[0042] The screw 40 is rotatably disposed in the circular hole 13 provided on the outer wall of the insulating housing 10 , and one end of the screw 40 extends into the accommodating cavity 11 and is threadedly connected with the frame member 30 .

[0043] Specifically, first, press the anti-loosening structure 20 to align the wire entry hole 12, then insert the cable from the wire entry hole 12, and let the wire core without insulation skin pass through the anti-loosening structure 20 to the frame-shaped member 30, then loosen the anti-loosening structure 20, so that the anti-loosening structure 20 and the wire entry hole 12 are misaligned and the cable (insulation skin) is fixed, and then use a tool (such as a cross screwdriver) to tighten the screw 40, drive the frame-shaped member 30 to move horizontally in the accommodating cavity 11 to compress the wire core without insulation skin of the cable, so as to achieve double tightening of the cable and the wire core. That is to say, through the cooperation of the anti-loosening structure 20 and the frame-shaped member 30, the double tightening of the cable and the wire core is achieved, even if it is subjected to electromagnetic vibration generated by the operation of the electrical equipment or accidentally touched by the staff, the cable cannot be loosened freely, thereby effectively avoiding equipment shutdown failure caused by loose cables; at the same time, the double tightening of the cable and the wire core effectively guarantees the tightening state of the terminal, which can reduce the workload during maintenance and greatly reduce the consumption of manpower and material resources.

[0044] The anti-loosening structure 20 includes a pressure rod 21, a fixing block 22 and an elastic member 23. One end of the pressure rod 21 slides through the outer wall of the insulating housing 10 and is connected to a button 24, and the other end is connected to the fixing block 22. The fixing block 22 is provided with a wire hole corresponding to the wire entry hole 12. The two ends of the elastic member 23 are respectively connected to the fixing block 22 and the insulating housing 10 on the side of the accommodating cavity 11. Specifically, the staff presses the button 24 with their fingers and pushes the fixing block 22 inward through the pressure rod 21, so that the elastic member 23 is compressed (see Figure 1 When the wire hole is aligned with the wire entry hole 12 (overlapping), the cable is inserted from the wire entry hole 12, thereby passing through the fixing block 22 to the frame member 30, and the button 24 is released, and the elastic member 23 is reset (see Figure 2 As shown), the fixing block 22 is pushed in the reverse direction, and the wire hole is staggered with the wire entry hole 12 to fix the cable (insulation skin).

[0045] To avoid electric leakage, the fixing block 22 is made of insulating material.

[0046] In this embodiment, the elastic member 23 is a spring, which is easy to maintain after aging and has low replacement cost.

[0047] To facilitate quick finding and identification of the button 24 , the outer surface of the button 24 is green.

[0048] The anti-loosening structure 20, the frame 30 and the screw 40 are symmetrically provided with two each; the two frame 30 are connected by a connecting piece 50 embedded in the insulating housing 10 and fixed. Specifically, the two ends of the connecting piece 50 are U-shaped structures, one side of the U-shaped structure is located outside the frame 20, and the other side is inserted into the frame 20 from the bottom of the frame 20. When wiring, the end of the cable core inserted into the two frame 30 contacts the connecting piece 50, and when the screw 40 is turned, the core moves horizontally with the frame 30 and is pressed between the connecting piece 50 and the frame 30 to achieve conduction.

[0049] See also Figure 1 and Figure 2 As shown, the insulating housing 10 located between the two frame-shaped members 30 is provided with a spacing area 14 for exposing the connecting piece 50; see Figure 4 As shown, a threaded hole 51 is provided in the middle of the connecting piece 50 for connecting a plurality of connecting terminals in parallel.

[0050] A special-shaped slot 15 is provided at the bottom of the insulating housing 10 for fixing the wiring terminal to a guide rail in the electrical panel cabinet (not shown in the figure).

[0051] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A terminal block with an anti-loosening structure, characterized in that: include: An insulating shell, wherein a receiving cavity is provided inside and a wire inlet hole communicating with the receiving cavity is provided on the top; An anti-loosening structure, horizontally movably arranged at the upper part of the accommodating cavity, used to fix the cable inserted from the cable entry hole; A frame-shaped member, horizontally movably disposed at the lower part of the accommodating cavity, for fixing the core of the cable; and The screw is rotatably arranged in a circular hole provided on the outer side wall of the insulating shell, and one end of the screw extends into the accommodating cavity and is threadedly connected with the frame-shaped member.

2. The terminal block with anti-loosening structure according to claim 1, characterized in that: The anti-loosening structure includes a pressure rod, a fixing block and an elastic member; One end of the pressure rod is connected to a button after sliding through the outer wall of the insulating shell, and the other end is connected to the fixing block; The fixing block is provided with a wire hole corresponding to the wire entry hole; The two ends of the elastic member are respectively connected with the fixing block and the insulating shell on the side of the accommodating cavity.

3. The terminal block with anti-loosening structure according to claim 2, characterized in that: The fixing block is made of insulating material.

4. The wiring terminal with anti-loosening structure according to claim 2, characterized in that: The elastic member is a spring.

5. The wiring terminal with anti-loosening structure according to claim 2, characterized in that: The outer surface of the button is green.

6. The terminal block with anti-loosening structure according to any one of claims 1 to 5, characterized in that: The anti-loosening structure, frame-shaped member and screw are symmetrically provided with two each; The two frame-shaped members are electrically connected via a connecting piece that is embedded in the insulating shell and is fixed.

7. The wiring terminal with anti-loosening structure according to claim 6, characterized in that: Both ends of the connecting piece are U-shaped structures, one side of the U-shaped structure is located outside the frame-shaped member, and the other side is inserted into the frame-shaped member from the bottom of the frame-shaped member.

8. The wiring terminal with anti-loosening structure according to claim 6, characterized in that: The insulating housing located between the two frame-shaped members is provided with a spacing area for exposing the connecting piece; A threaded hole is provided in the middle of the connecting piece for connecting a plurality of connecting terminals in parallel.

9. The wiring terminal with anti-loosening structure according to claim 1 or 8, characterized in that: A special-shaped slot is provided at the bottom of the insulating shell, which is used to fix the wiring terminal on the guide rail in the electrical panel cabinet.

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