A crimping device for an electricity meter

Abstract

A kind of crimping device of electric energy meter, it is arranged in the wiring slot of electric energy meter, wiring slot is equipped with the installation slot being communicated with it;First pivot is equipped on the inner side upper portion of installation slot, connecting rod is rotatably connected on first pivot, connecting rod lower portion is connected with compression unit, compression unit includes the load plate in wiring slot, load plate upper portion middle position is hinged with the lower portion of connecting rod by hinged seat, load plate lower portion is provided with at least two compression pieces arranged along its length direction;Electric energy meter is equipped with adjusting piece, one end of adjusting piece can be resisted to the lower portion of connecting rod and or load plate side.The two compression pieces of compression unit of the utility model can be moved up and down in wiring slot or installation slot under the driving of connecting rod, compression piece is inserted into wiring slot to its stable fixation, the initial position of compression piece is set close to wiring slot outer side, to facilitate the lower portion of compression unit or connecting rod by adjusting piece push, gradually wire is pushed to wiring slot inner side and gradually pressed down.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, specifically to a crimping device for electricity meters. Background Technology

[0002] Currently, electricity meter terminals generally use bolt crimping. Specifically, the terminal has a wiring slot. The stripped wire is inserted into the wiring slot, and a bolt is manually tightened to press the wire into the corresponding wiring slot.

[0003] The existing technology uses only one bolt to fix the wire. The contact area between the lower end of the bolt and the stripped part of the wire is small, which makes it difficult to press the wire securely. This can easily lead to loosening or poor contact. In particular, after the wire is connected, it can be pulled by external force and easily detach from the lower part of the bolt, affecting the accuracy of electricity metering. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides a crimping device for an electricity meter.

[0005] The technical solution of this utility model is as follows: A crimping device for an electricity meter is provided on the wiring slot of the electricity meter. The wiring slot has a circular structure and a mounting groove communicating with it. The length direction of the mounting groove is parallel to the length direction of the wiring slot. The upper part of the inner side of the mounting groove is provided with a first rotating shaft, and a connecting rod is rotatably connected to the first rotating shaft. A clamping unit is connected to the lower part of the connecting rod. The clamping unit includes a bearing plate located in the wiring groove. The upper middle position of the bearing plate is hinged to the lower part of the connecting rod through a hinge seat. The plane where the bearing plate rotates is parallel to or coincides with the plane where the axis of the wiring groove is located. At least two clamping elements are provided at the lower part of the bearing plate along its length direction. The electricity meter has an adjustment groove that communicates with the mounting groove. The axis of the adjustment groove is parallel to the axis of the wiring groove. The adjustment groove is located below the first rotating shaft and close to the bearing plate. An adjustment component is threaded into the adjustment groove. One end of the adjustment component can abut against the lower part of the connecting rod and / or one side of the bearing plate.

[0006] To facilitate the clamping component to press down on the wires passing through the wiring groove under the action of the connecting rod rotation, the clamping component is designed with an arc-shaped structure. The radius corresponding to the arc of the clamping component is larger than the radius of the wiring groove, so as to avoid the clamping component being too small to press the wires down well.

[0007] The specific structure of the aforementioned adjustment groove is as follows: the adjustment groove includes a first threaded section and a smooth hole section. The first threaded section is set away from the mounting groove, and the ratio of the length of the smooth hole section to the length of the first threaded section is 1-2. The length of the threaded section is less than the length of the smooth hole section, which reduces the number of tightening times of the adjustment component and facilitates quick tightening of the adjustment component. This allows the adjustment component to press the lower part of the connecting rod, the bearing plate, and the position of the clamping component to one side, which facilitates the clamping component to firmly press the wire downward and avoids shaking after the clamping component presses the wire.

[0008] The structure of the above-mentioned adjusting component is as follows: the adjusting component is an adjusting bolt, the adjusting bolt has a second threaded section and a smooth rod section, the second threaded section is set away from the mounting groove, and the ratio of the length of the smooth rod section to the length of the second threaded section is set to 1-2. It works with the first threaded section to enable the adjusting component to be tightened quickly, so as to fix the position of the connecting rod, the bearing plate and the clamping component.

[0009] Preferably, the adjusting member has a top clamping plate rotatably mounted at one end near the first rotating shaft, and the plane at the highest position of the top clamping plate is lower than the plane at the axis of the first rotating shaft.

[0010] To facilitate multi-point fixing of the wires, two clamping components are provided. To facilitate clamping of insulated wires and stripped wires respectively, the two clamping components are an insulation clamping component and a wire clamping component. The insulation clamping component and the wire clamping component are located at both ends of the bearing plate, with the insulation clamping component positioned closer to the adjustment groove.

[0011] The wires are usually stripped and partially insulated, inserted into the wiring slot. The outer diameter of the insulated wire is larger than that of the stripped wire. To facilitate the insulation clamping device to better clamp the insulated wire, and to facilitate the wire clamping device to clamp the stripped wire, the radius of the insulation clamping device is set to be larger than that of the wire clamping device.

[0012] To facilitate better clamping of the conductor by the arc-shaped surface of the clamping component and reduce conductor slippage, multiple clamping teeth are provided on the arc-shaped surface of both the insulation clamping component and the conductor clamping component on the side away from the hinge seat.

[0013] If the cross-section of the clamping teeth is triangular, it will damage the insulation and surface of the wire. The clamping teeth are set to have a trapezoidal cross-section, and the length of the clamping teeth is set along the arc surface of the clamping member. The upper base of the trapezoidal structure is the side with the shorter length, which can contact the wire.

[0014] The beneficial effects of this utility model are as follows: The two clamping parts of the clamping unit can move up and down in the wiring slot or mounting slot under the drive of the connecting rod. The movement trajectory is an arc trajectory. In order to facilitate the clamping parts to stably fix the wires when they are inserted into the wiring slot, the initial position of the clamping parts is set close to the outside of the wiring slot. This allows the clamping unit or the lower part of the connecting rod to be pushed by the adjusting parts to gradually push the wires into the wiring slot and press them down. The adjusting groove is threaded with an adjusting component. One end of the adjusting component can abut against the lower part of the connecting rod and / or the side of the bearing plate, so that the adjusting component can quickly fix the position of the connecting rod and the clamping unit through a simple tightening operation, ensuring that the wire is firmly clamped and preventing the clamping component from shaking. The radius of the clamping element's curvature is greater than the radius of the wiring groove. This design ensures that the clamping element makes full contact with the wire surface, avoiding insecure clamping or wire slippage due to insufficient curvature. The adjusting component has a top clamping plate at one end near the first rotating shaft. The plane at the highest point of the top clamping plate is lower than the plane at the axis of the first rotating shaft, which can avoid interference between the top clamping plate and the first rotating shaft, while ensuring that the adjusting component can effectively press the connecting rod and the bearing plate. To facilitate multi-point fixing of the wires, two clamping components are provided. These components are an insulation clamping component and a wire clamping component, which are located at both ends of the bearing plate. The insulation clamping component is positioned closer to the adjustment groove. Compared with the existing technology that fixes the wires with only one bolt, the two clamping components can ensure that the wire connection is firmly fixed, reducing the occurrence of loosening or slippage of the wires. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a structural diagram; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a top view; Figure 4 for Figure 3 A schematic diagram of the AA-direction cross-section structure; Figure 5 for Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the clamping unit and connecting rod structure; Figure 7 This is a schematic diagram of the adjusting component structure; The components represented by the various reference numerals in the diagram are: 1. Electricity meter; 101. Wiring groove; 102. Adjustment groove; 1021. First threaded section; 1022. Smooth section; 103. Mounting groove; 2. First rotating shaft; 3. Connecting rod; 4. Bearing plate; 5. Hinge seat; 6. Insulation sheath clamping component; 7. Wire clamping component; 8. Adjusting component; 801. Second threaded section; 802. Smooth rod section; 9. Top clamping plate; 10. Clamping teeth. Detailed Implementation

[0016] See Figure 1 As shown, a crimping device for an electricity meter 1 is provided on the wiring groove 101 of the electricity meter 1. The wiring groove 101 has a circular structure and a mounting groove 103 communicating with it is provided on the wiring groove 101. The length direction of the mounting groove 103 is parallel to the length direction of the wiring groove 101.

[0017] See Figure 2 , Figure 5 and Figure 6 As shown, a first rotating shaft 2 is provided on the upper inner side of the mounting groove 103. A connecting rod 3 is rotatably connected to the first rotating shaft 2. A clamping unit is connected to the lower part of the connecting rod 3. The clamping unit includes a bearing plate 4 located in the wiring groove 101. The upper middle position of the bearing plate 4 is hinged to the lower part of the connecting rod 3 through a hinge seat 5. The plane of the rotation trajectory of the bearing plate 4 coincides with the plane of the axis of the wiring groove 101. At least two clamping elements are provided on the lower part of the bearing plate 4 along its length. The mounting groove 103 is used to install the connecting rod 3. The mounting groove 103 has an elongated structure. The connecting rod 3 can rotate a certain angle within the mounting groove 103, which allows the bearing plate 4 to rotate flexibly within the mounting groove 103 and the wiring groove 101, thereby achieving uniform clamping of the wire and avoiding loosening or damage of the wire due to uneven force at a single point.

[0018] See Figure 3 , Figure 4 and Figure 7 As shown, the electricity meter 1 has an adjustment groove 102 that communicates with the mounting groove 103. The axis of the adjustment groove 102 is parallel to the axis of the wiring groove 101. The adjustment groove 102 is located below the first rotating shaft 2 and close to the bearing plate 4. An adjustment member 8 is threadedly connected to the adjustment groove 102. One end of the adjustment member 8 can abut against the lower part of the connecting rod 3 and / or one side of the bearing plate 4.

[0019] The adjusting groove 102 includes a first threaded section 1021 and a smooth hole section 1022. The first threaded section 1021 is located away from the mounting groove 103, and the ratio of the length of the smooth hole section 1022 to the length of the first threaded section 1021 is 1-2. The length of the threaded section is less than the length of the smooth hole section 1022, which reduces the number of tightening times of the adjusting component 8 and facilitates quick tightening of the adjusting component 8. This allows the adjusting component 8 to press the lower part of the connecting rod 3, the bearing plate 4, and the position of the clamping component to one side, which facilitates the clamping component to firmly press the wire downward and avoids shaking after the clamping component presses the wire.

[0020] See Figure 5 and Figure 7 As shown, the adjusting component 8 is an adjusting bolt, which has a second threaded section 801 and a smooth section 802. The second threaded section 801 is positioned away from the mounting groove 103. The length ratio of the smooth section 802 to the second threaded section 801 is set to 1-2, which, in conjunction with the first threaded section 1021, allows the adjusting component 8 to be quickly tightened to fix the positions of the connecting rod 3, the bearing plate 4, and the clamping component. A top-tightening plate 9 is rotatably provided at one end of the adjusting component 8 near the first rotating shaft 2. The top-tightening plate 9 is perpendicular to the adjusting component 8, and the plane at the highest point of the top-tightening plate 9 is lower than the plane of the axis of the first rotating shaft 2.

[0021] To facilitate the clamping component to press down on the wire passing through the wiring groove 101 under the rotation of the connecting rod 3, the clamping component is designed with an arc shape. The radius corresponding to the arc of the clamping component is larger than the radius of the wiring groove 101, so as to avoid the clamping component being too small to press the wire down well.

[0022] See Figure 4 , Figure 5 and Figure 6 As shown, to facilitate multi-point fixing of the wires, two clamping components are provided. These are insulation clamping component 6 and wire clamping component 7, designed to clamp both insulated and stripped wires separately. Insulation clamping component 6 and wire clamping component 7 are located at opposite ends of the bearing plate 4, with insulation clamping component 6 positioned closer to the adjusting groove 102. To ensure proper clamping of the wires by the curved surface of the clamping component and reduce wire slippage, both insulation clamping component 6 and wire clamping component 7 have multiple clamping teeth 10 on their curved surfaces away from the hinge seat 5. If the cross-section of the clamping teeth 10 were triangular, it would damage the insulation and surface of the wires. Therefore, the cross-section of the clamping teeth 10 is trapezoidal, with the length of the teeth 10 aligned with the curved surface of the clamping component. The upper base of the trapezoidal structure is the shorter side, which can contact the wire.

[0023] The wires are usually inserted into the wiring slot 101 with stripped wires and part of the wires with insulation. The outer diameter of the wires with insulation is larger than the outer diameter of the stripped wires. In order to facilitate the insulation clamping member 6 to clamp the wires with insulation better, and to facilitate the wire clamping member 7 to clamp the stripped wires, the radius of the insulation clamping member 6 is set to be larger than the radius of the wire clamping member 7.

Claims

1. A crimping device for an electricity meter, disposed on a wiring groove (101) of an electricity meter (1), the wiring groove (101) being circular in shape, characterized in that, The wiring groove (101) is provided with an installation groove (103) communicating with it; the upper part of the inner side of the installation groove (103) is provided with a first rotating shaft (2), a connecting rod (3) is rotatably connected to the first rotating shaft (2), and a clamping unit is connected to the lower part of the connecting rod (3). The clamping unit includes a bearing plate (4) located in the wiring groove (101). The upper middle position of the bearing plate (4) is hinged to the lower part of the connecting rod (3) through a hinge seat (5). The plane where the rotation trajectory of the bearing plate (4) is located is parallel or coincident with the plane where the axis of the wiring groove (101) is located. At least two clamping members are arranged along its length direction at the lower part of the bearing plate (4). The energy meter (1) has an adjustment groove (102) that communicates with the mounting groove (103). The axis of the adjustment groove (102) is parallel to the axis of the wiring groove (101). The adjustment groove (102) is located below the first rotating shaft (2) and close to the bearing plate (4). An adjustment component (8) is threaded into the adjustment groove (102). One end of the adjustment component (8) can abut against the lower part of the connecting rod (3) and / or the side of the bearing plate (4).

2. The crimping device for an electricity meter according to claim 1, characterized in that, The clamping member has an arc-shaped structure, and the radius corresponding to the arc of the clamping member is greater than the radius of the wiring groove (101).

3. The crimping device for an electricity meter according to claim 1, characterized in that, The adjustment groove (102) includes a first threaded section (1021) and a smooth hole section (1022). The first threaded section (1021) is located away from the mounting groove (103), and the ratio of the length of the smooth hole section (1022) to the length of the first threaded section (1021) is 1-2.

4. The crimping device for an electricity meter according to claim 1, characterized in that, The adjusting component (8) is an adjusting bolt, which has a second threaded section (801) and a smooth rod section (802). The second threaded section (801) is located away from the mounting groove (103), and the ratio of the length of the smooth rod section (802) to the length of the second threaded section (801) is 1-2.

5. The crimping device for an electricity meter according to claim 4, characterized in that, The adjusting member (8) has a top plate (9) rotatably mounted on one end near the first rotating shaft (2), and the plane at the highest position of the top plate (9) is lower than the plane at the axis of the first rotating shaft (2).

6. The crimping device for an electricity meter according to claim 2, characterized in that, The two clamping components are an insulating skin clamping component (6) and a wire clamping component (7). The insulating skin clamping component (6) and the wire clamping component (7) are located at both ends of the bearing plate (4), and the insulating skin clamping component (6) is set on the side close to the adjustment groove (102).

7. The crimping device for an electricity meter according to claim 6, characterized in that, The radius of the insulating skin clamping member (6) is greater than the radius of the wire clamping member (7).

8. The crimping device for an electricity meter according to claim 7, characterized in that, The insulating skin clamping member (6) and the wire clamping member (7) are provided with multiple clamping teeth (10) on the arc-shaped surface away from the hinge seat (5).

9. The crimping device for an electricity meter according to claim 8, characterized in that, The cross-section of the clamping tooth (10) is trapezoidal, and the length direction of the clamping tooth (10) is set along the arc surface of the clamping member.

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