Wiring terminal capable of indicating tightness

Abstract

The utility model relates to the technical field of wire connection equipment, and provides a binding post capable of indicating tightness, which comprises an insulating shell, a connecting piece, a connecting piece, a connecting piece, a connecting piece, a connecting piece and a connecting piece, and is characterized in that the insulating shell is internally provided with an accommodating cavity; the top is provided with a round hole communicated with the accommodating cavity; the frame-shaped piece is vertically and movably arranged in the containing cavity, and a position indicating board synchronously acting with the frame-shaped piece is arranged on the outer side of the top of the frame-shaped piece; the screw is rotationally arranged in the round hole, and the lower end of the screw extends into the accommodating cavity and is in threaded connection with the upper part of the frame-shaped piece; wherein the insulating shell is provided with a wire inlet and a transparent window, the wire inlet is communicated with the lower portion of the side face of the containing cavity and used for inserting a cable into the frame-shaped piece, and the transparent window is communicated with the upper portion of the side face of the containing cavity and used for checking the color displayed by the position indicator. According to the utility model, the fastening state of the wiring terminal can be judged by checking the color displayed by the position indication board synchronously acting with the frame-shaped piece through the transparent window in an observation method, so that processing is carried out at the first time to avoid the occurrence of non-stop of equipment; meanwhile, through the color displayed by the position indication board, only the loose wiring terminals need to be fastened in the maintenance process, one-by-one manual inspection is not needed, 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 capable of indicating tightness. Background Art

[0002] At present, many closely arranged terminal blocks are often installed in the electrical cabinets of the power distribution room to connect the secondary control circuits. Conventional terminal blocks are all installed with sliders in the terminal block, and then the sliders are pushed by screws to press the wire cores and fix them in the terminal block.

[0003] In actual use, after the terminal blocks are installed, the circuit breakers and other components in the cabinet are repeatedly attracted and prone to vibration. The vibration amplitude is small but always exists, causing the screws on some terminal blocks to often loosen. The staff cannot directly observe whether the terminal blocks are loose. At the same time, because some terminal blocks are energized during equipment operation, it is difficult for the staff to check and tighten the terminals online due to the risk of equipment shutdown and electric shock. As a result, the loose terminal blocks cannot be discovered in time, causing unplanned equipment shutdown.

[0004] In addition, during maintenance, indiscriminately tightening each terminal block will not only consume a lot of manpower and material resources, but also repeatedly tightening a large number of terminals will cause the possibility of screw stripping or missing tightening, resulting in losses due to untimely tightening. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a wiring terminal capable of indicating tightness, so as to solve the problem that the prior wiring terminal cannot be identified as loose by direct observation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A wiring terminal capable of indicating tightness, comprising:

[0008] An insulating shell, wherein a receiving cavity is provided inside and a circular hole communicating with the receiving cavity is provided on the top;

[0009] A frame-shaped member is movably disposed in the accommodating cavity, and a position indicator is disposed on the outer side of the top thereof so as to move synchronously therewith; and

[0010] A screw is rotatably disposed in the circular hole, and its lower end extends into the accommodating cavity and is threadedly connected with the upper portion of the frame-shaped member;

[0011] Among them, the insulating shell is provided with a wire inlet and a transparent window. The wire inlet is connected to the lower part of the side of the accommodating cavity and is used to insert the cable into the frame-shaped member. The transparent window is connected to the upper part of the side of the accommodating cavity and is used to view the color displayed by the position indicator.

[0012] In one embodiment disclosed in the present application, the position indicator is equally divided into a first area and a second area, the first area is at the bottom and is painted with a first color, the second area is at the top and is painted with a second color, and the first color is different from the second color;

[0013] The viewport size of the transparent window is equal to that of the first area or the second area.

[0014] In an embodiment disclosed in the present application, the first color is green, and the second color is red.

[0015] In one embodiment disclosed in the present application, a guide groove is provided inside the insulating housing;

[0016] The guide groove is located between the viewport of the transparent window and the upper part of the side surface of the accommodating cavity, and is used for guiding the upward and downward movement of the position indicator.

[0017] In one embodiment disclosed in the present application, the transparent window is trumpet-shaped, and its large end is located on the outside.

[0018] In one embodiment disclosed in the present application, the line inlet is also trumpet-shaped, and its large end is located on the outside.

[0019] In one embodiment disclosed in the present application, two frame-shaped members are symmetrically provided, and the accommodating cavity, the circular hole, the wire inlet, the transparent window and the position indicator respectively correspond to the frame-shaped members one by one;

[0020] The two frame-shaped members are electrically connected via a connecting piece that is embedded in the insulating shell and is fixed.

[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] By observing the color displayed on the position indicator plate that moves synchronously with the frame-shaped part through a transparent window, the tightening status of the terminal block can be determined, so that processing can be carried out immediately to avoid equipment shutdown. At the same time, according to the color displayed on the position indicator plate, during maintenance, only loose terminal blocks need to be tightened without manual inspection one by one, which greatly reduces 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 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[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 capable of indicating tightness, comprising:

[0039] The insulating housing 10 has a receiving cavity 11 in its interior and a circular hole 12 in communication with the receiving cavity 11 at its top;

[0040] The frame-shaped member 20 is movably disposed in the accommodating cavity 11, and a position indicator 21 is disposed on the outer side of the top (i.e., the side facing the outside of the insulating housing 10) and moves synchronously with the frame-shaped member 20; and

[0041] The screw 30 is rotatably disposed in the circular hole 12, and its lower end extends into the accommodating cavity 11 and is threadedly connected with the upper portion of the frame-shaped member 20;

[0042] Among them, the insulating shell 10 is provided with a wire inlet 13 and a transparent window 14. The wire inlet 13 is connected to the lower side of the accommodating cavity 11 and is used to insert the cable into the frame-shaped member 20. The transparent window 14 is connected to the upper side of the accommodating cavity 11 and is used to view the color displayed by the position indicator 21.

[0043] Specifically, the cable is inserted into the frame 20 from the cable inlet 13, and then the screw 30 is tightened by a tool (such as a cross screwdriver), driving the frame 20 to move upward in the accommodating cavity 11 to compress the cable, and the frame 20 moves synchronously with the position indicator 21. At this time, the first color displayed on the position indicator 21 can be seen from the transparent window 14 (see Figure 2 ), indicating that the terminal block is in a tightened state; when the terminal block is subjected to vibration after working for a period of time, the screw 30 loosens, and the frame 20 moves down with the position indicator 21. At this time, the second color displayed by the position indicator 21 can be seen from the transparent window 14 (see Figure 1 ), indicating that the terminal is in a loose state and needs to be tightened. That is, by observing the color displayed on the position indicator 21 that moves synchronously with the frame 20 through the transparent window 14, the tightening state of the terminal can be judged, so that it can be handled in the first time to avoid the occurrence of equipment stoppage; at the same time, according to the color displayed on the position indicator 21, during maintenance, only the loose terminal needs to be tightened, without manual inspection one by one, which greatly reduces the consumption of manpower and material resources.

[0044] See also Figure 1 to Figure 3 As shown, the position indicator 21 is equally divided into a first area and a second area, the first area is at the bottom and is painted with a first color, the second area is at the top and is painted with a second color, and the first color is different from the second color; the viewport size (area) of the transparent window 14 is equal to that of the first area or the second area. In this way, when the first area (second area) covers the viewport of the transparent window 14, the second area (first area) will not be visible, which can improve the accuracy of judging the fastening state of the terminal block.

[0045] In this embodiment, the first color is green and the second color is red. That is, when the connection terminal is tightened, green can be observed from the transparent window 14, and when the connection terminal is loose, red can be observed from the transparent window 14. When a red indication is found, it means that the connection terminal is loose, so it is tightened immediately to avoid equipment failure due to loose connection terminals.

[0046] A guide groove 15 is provided inside the insulating housing 10 . The guide groove 15 is located between the viewport of the transparent window 14 and the upper side of the accommodating cavity 11 and is used to guide the upward and downward movement of the position indicator 21 .

[0047] In order to facilitate observation and light exposure for the staff, the transparent window 14 is trumpet-shaped, and its large end is located on the outside.

[0048] Similarly, in order to facilitate the insertion of the cable into the frame-shaped member 20, the cable inlet 13 is also trumpet-shaped, with the larger end thereof being located on the outside.

[0049] Two frame-shaped members 20 are symmetrically provided, and the accommodating cavity 11, the circular hole 12, the wire inlet 13, the transparent window 14 and the position indicator 21 correspond to the frame-shaped members 20 one by one respectively; the two frame-shaped members 20 are connected through the connecting piece 40 embedded in the insulating housing 10 and fixed. Specifically, the two ends of the connecting piece 40 are respectively inserted into the two frame-shaped members 20. When wiring, the screws 30 are turned so that the cable cores inserted into the two frame-shaped members 20 from both sides move up with the frame-shaped members 20 and are pressed between the connecting piece 40 and the frame-shaped members 20 to achieve conduction. After the wiring is completed, the tightness of the wiring can be observed through the transparent windows 14 on both sides.

[0050] See also Figure 1 and Figure 2 As shown, the insulating housing 10 located between the two frame-shaped members 20 is provided with a spacing area 16 for exposing the connecting piece 40; see Figure 4 As shown, a threaded hole 41 is provided in the middle of the connecting piece 40 for connecting a plurality of connecting terminals in parallel.

[0051] A special-shaped slot 17 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).

[0052] 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 capable of indicating tightness, characterized in that: include: An insulating shell, wherein a receiving cavity is provided inside and a circular hole communicating with the receiving cavity is provided on the top; A frame-shaped member is movably disposed in the accommodating cavity, and a position indicator is disposed on the outer side of the top thereof so as to move synchronously therewith; and A screw is rotatably disposed in the circular hole, and its lower end extends into the accommodating cavity and is threadedly connected with the upper portion of the frame-shaped member; Among them, the insulating shell is provided with a wire inlet and a transparent window. The wire inlet is connected to the lower part of the side of the accommodating cavity and is used to insert the cable into the frame-shaped member. The transparent window is connected to the upper part of the side of the accommodating cavity and is used to view the color displayed by the position indicator.

2. The wiring terminal capable of indicating tightness according to claim 1, characterized in that: The position indicator is equally divided into a first area and a second area, the first area is at the bottom and is painted with a first color, the second area is at the top and is painted with a second color, and the first color is different from the second color; The viewport size of the transparent window is equal to that of the first area or the second area.

3. The wiring terminal capable of indicating tightness according to claim 2, characterized in that: The first color is green, and the second color is red.

4. The wiring terminal capable of indicating tightness according to any one of claims 1 to 3, characterized in that: A guide groove is provided inside the insulating shell; The guide groove is located between the viewport of the transparent window and the upper part of the side surface of the accommodating cavity, and is used for guiding the upward and downward movement of the position indicator.

5. The wiring terminal capable of indicating tightness according to claim 4, characterized in that: The transparent window is trumpet-shaped, and its large end is located on the outside.

6. The wiring terminal capable of indicating tightness according to claim 1 or 5, characterized in that: The line inlet is also trumpet-shaped, and its large end is located on the outside.

7. The wiring terminal capable of indicating tightness according to claim 1, characterized in that: The frame-shaped parts are symmetrically provided with two, and the accommodating cavity, the circular hole, the wire inlet, the transparent window and the position indicator are respectively corresponding to the frame-shaped parts one by one; The two frame-shaped members are electrically connected via a connecting piece that is embedded in the insulating shell and is fixed.

8. The wiring terminal capable of indicating tightness according to claim 7, 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 capable of indicating tightness 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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