Rotation limiting structure of rotary electric energy meter plug connector

By setting up the projection and limiting plate in the rotary power meter plug-in, the copper needle charging problem caused by the shaking of the rotary assembly is solved, and the safety and stability of the replacement process and material savings are achieved.

CN223166803UActive Publication Date: 2025-07-29ZHEJIANG CHIZHENG ELECTRIC POWER TECH CO LTD +1
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Patent Information

Application Number
CN202422063135.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-07-29
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

During the replacement of the existing rotary power meter connector, the rotating assembly shaking causes the copper needle to be charged, which poses a risk of electric shock and cannot ensure a stable state.

Method used

A projection is provided on the rotating part, and a limiting plate is provided on the fixed base. Through the abutment between the projection and the limiting plate, the shaking of the rotation assembly at the maximum opening is restricted, and damping feedback and stability are provided.

Benefits of technology

Effectively prevent the rotating components from shaking, ensure that the copper needle is in a power-off state, improve the safety and stability of the replacement process, and reduce friction and material usage.

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Abstract

The utility model discloses a rotation limiting structure of a rotary electric energy meter plug connector, which comprises a fixed base, the fixed base is rotatably connected with a rotating assembly, the fixed base is provided with limiting plates, the rotating assembly comprises a rotating part located between the limiting plates, the rotating part is provided with a protruding part, and the protruding part is provided with a clamping groove. When the rotating part is opened and rotates to the maximum opening degree, the protruding part abuts against the limiting plate. The utility model provides a rotation limiting structure of a rotary electric energy meter plug connector, which can prevent a copper needle from being electrified due to shaking of a rotation assembly in the replacement process of an electric energy meter, thereby avoiding the risk of electric shock of operators, ensuring the stable state of the rotation assembly in the replacement process, and improving the safety coefficient.
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Description

Technical Field

[0001] The utility model relates to the technical field of electricity meter accessories, in particular to a rotation limiting structure of a rotary electricity meter connector. Background Art

[0002] With the sharp increase in the usage of electricity meters, the demand for their replacement and repair has also risen. Currently, to ensure that users' electricity consumption is not affected, the power-off replacement method is mostly adopted. In specific operations, the electricity meter is powered off while the circuit on the mounting base remains conductive, so as to facilitate users' use. When replacing the electricity meter, the electricity meter will be rotated and powered off at the same time, and the replacement will be carried out in this state.

[0003] For example, the publication number "CN114264853A" discloses "a simple device for quickly replacing an electricity meter without power interruption", which includes an insulating base, an insulating fixing seat, an insulating rotating cover, an insulating cover plate, a copper needle connector, a locking tongue needle and a metal reed. The insulating fixing seat is fixedly connected to the insulating base, the insulating rotating cover is rotatably connected to the insulating fixing seat, the insulating cover plate is fixedly connected to the front side of the insulating rotating cover, the copper needle connector is fixedly connected to the insulating rotating cover, the locking tongue needle is fixedly connected inside the copper needle connector, the metal reed is fixedly connected inside the insulating fixing seat, and a metal short-circuit piece is fixedly connected to the rear side of the insulating rotating cover. However, in actual applications, this type of rotation limiting structure cannot ensure the stability of the rotating component when it is at the maximum opening degree of the switch (i.e., the power-off replacement angle). If the rotating component shakes, there will be a risk of electric conduction. Summary of the Invention

[0004] Aiming at the problem in the prior art mentioned in the background art that there is a problem of electrification caused by shaking during the process of replacing the electricity meter, the utility model provides a rotation limiting structure of a rotary electricity meter connector, which can prevent the copper needle from being electrified due to the shaking of the rotating component during the process of replacing the electricity meter, thereby avoiding the risk of electric shock to the operator, ensuring the stable state of the rotating component during the replacement process, and improving the safety factor.

[0005] To achieve the above object, the utility model adopts the following technical solutions.

[0006] A rotation limiting structure of a rotary electricity meter connector includes a fixed base, the fixed base is rotatably connected with a rotating component, a limiting plate is arranged on the fixed base, the rotating component includes a rotating part located between the limiting plates, and a protruding part is arranged on the rotating part. When the rotating part rotates to the maximum opening degree during switch opening, the protruding part abuts against the limiting plate.

[0007] In this application, there is a fixed base and a rotating component. The fixed base is in a fixed state, while the rotating component can rotate relative to the fixed base. The rotating component has two states relative to the fixed base: the open - gate state and the closed - gate state. When the rotating component rotates outward relative to the fixed base, it is the process of the rotating component changing from the closed - gate state to the open - gate state. During the closing process, the electricity meter is connected to the rotating component, and current passes through conductive components such as copper pins so that the current passes through the electricity meter. When the rotating component moves from the closed - gate state to the open - gate state, conductive components such as copper pins on the rotating component gradually separate from the circuit unit on the fixed base. In the open - gate state, that is, when the rotating component rotates to the maximum opening state, the copper pins used to connect the fixed base and the electricity meter on the rotating component completely separate from the fixed base and are in a power - off state. Therefore, at this time, the copper - pin parts of the electricity meter and the rotating component exposed on the outside are in a non - conductive state.

[0008] In such a case, in the prior art, when the rotating component rotates to the open - gate position, the rotating component cannot be effectively fixed and constrained, resulting in an unstable state of the rotating component during the process of replacing the electricity meter. If the rotating component is pushed back accidentally due to improper operation at this time, the copper - pin parts exposed on the outside of the rotating component will conduct electricity with the live parts on the fixed base, thus posing an electric - shock risk.

[0009] Therefore, in this application, a convex part is provided on the rotating part of the rotating component, and a limiting plate is provided on the fixed base. During rotation, the limiting plate can block the convex part, thus ensuring a damping feedback effect for the user during the rotation process. In this application, after the rotating component rotates to the maximum opening in the open - gate state, the convex part abuts against the limiting plate. Since the rotating part is at the maximum opening at this time and cannot rotate outward continuously, and because the convex part has already abutted against the limiting plate, it also cannot rotate inward without a large external force. Thus, the rotating component is limited to the position of the maximum opening in the open - gate state. In this state, it can be ensured that the rotating component does not shake, and further ensure that the conductive copper pins connecting the electricity meter and the fixed base on the rotating component can stably be in a power - off state, ensuring the safety during the process of replacing the electricity meter.

[0010] Preferably, the limit plate includes an outer support area, and when the rotating part rotates until the protrusion contacts the outer support area, the protrusion squeezes and stretches the limit plate outward. The limit plate includes an outer support area, which is the area of the limit plate that the protrusion abuts and stretches during the rotation of the rotating part. Since there is always squeezing friction between the outer support area and the protrusion during the rotation process, it can provide a damping feedback effect for the staff. When in the open state with the maximum opening, the protrusion abuts the limit plate instead of stretching the limit plate. Therefore, during the transition between these two states, the installer will have an obvious sudden change. At this time, the rotating assembly is at the maximum opening. At the same time, the inward and outward rotation of the rotating assembly are both constrained by the limit, so as to avoid the installer still maintaining force when the door is opened to the maximum opening, thereby affecting and damaging other limiting structures.

[0011] Preferably, the limit plate includes an external surface, and the raised portion includes a barbed surface. When the rotating portion is opened and rotated to the maximum opening, the barbed surface is in contact with the external surface. The limit plate includes an external surface, wherein the external surface is the outer side of the limit plate, and the barbed surface is provided on the raised portion. When the rotating portion is opened and rotated to the maximum opening, the raised portion is located on the outer side of the limit plate, and the barbed surface is in contact with the external surface, so that the rotating component is resisted when retreating. Due to the surface-to-surface contact, the resistance effect is more obvious, and the stabilization effect is also better.

[0012] Preferably, a transition angle is provided on the side of the barb surface away from the rotating portion. Providing the transition angle on the barb surface allows for a smoother extrusion transition between the barb surface and the limit plate when the rotating assembly is pushed inwardly. Furthermore, when the protrusion moves on the outer support area, smooth movement is ensured, while preventing the edges of the barb surface from being squeezed and worn during repeated retraction.

[0013] Preferably, the limit plate includes an inner surface, and the raised portion includes a guide surface. When the rotating portion is in the closed state, the guide surface is located on the side close to the inner surface. The side of the limit plate close to the inner side is the inner surface. During the outward rotation of the rotating assembly, the raised portion will first abut against the inner surface, and then the limit plate will continue to move outward by pressing the raised portion outward. Therefore, a guide surface is provided on the raised portion. The guide surface is an arc surface or an inclined surface, which can make the transition from the raised portion abutting against the inner surface to the external support of the limit plate smoother, while reducing the contact area between the raised portion and the limit plate during the external support of the limit plate, thereby reducing friction.

[0014] Preferably, when the rotating portion is in the closed state, a movable gap exists between the guide surface and the inner surface. When the rotating portion is in the closed state, the movable gap between the guide surface and the inner surface enables the guide surface to obtain an initial velocity when contacting the inner surface, helping the protrusion to better open the limit plate while providing a sense of stop.

[0015] Preferably, a reinforced connection area is provided on the side of the raised portion close to the rotating portion. The reinforced connection area is provided on the raised portion, wherein the reinforced connection area is provided on the side of the raised portion close to the rotating portion and is a widened and thickened portion, thereby ensuring the connection strength between the raised portion and the rotating portion, avoiding damage to the connection between the raised portion and the rotating portion during multiple opening and closing processes, and improving the life of the structure.

[0016] Preferably, the cross-section of the protrusion is a triangular structure, which can save injection molding materials while ensuring structural strength.

[0017] Preferably, the raised portion has a right-angled triangle cross-section, comprising a right-angled side and a hypotenuse. When the rotating portion is rotated to its maximum opening, the hypotenuse abuts the stop plate. Due to the right-angled triangle structure, the raised portion has both a right-angled side and a hypotenuse. At maximum opening, the hypotenuse abuts the stop plate, increasing the contact area with the stop plate and thereby ensuring the stability of the stop at maximum opening.

[0018] Preferably, the limit plates are provided on both sides of the fixed base, and the raised portions are provided on both sides of the rotating portion. The limit plates are provided on both sides, and the raised portions are correspondingly provided on both sides, so that during the closing process, the blocking effect and the limiting effect generated can be uniform and symmetrical, ensuring stability.

[0019] The beneficial effects of the utility model are as follows:

[0020] (1) It can prevent the copper needle from being electrified due to shaking of the rotating assembly during the replacement of the electric energy meter, thereby avoiding the risk of electric shock to the operator, ensuring the stability of the rotating assembly during the replacement process, and improving the safety factor;

[0021] (2) It can improve the smoothness of the protrusion during movement and ensure the limiting stability of the protrusion for the rotating component; (3) It can save injection molding materials and increase the contact area of the hook surface to ensure the limiting stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an axonometric drawing of the present utility model.

[0023] Figure 2 It is a partial side view of the utility model in the open state.

[0024] Figure 3 yes Figure 1 A partial enlarged view of point A in the middle.

[0025] Figure 4 yes Figure 1Partial enlarged view at position B in the figure.

[0026] Figure 5 Is a partial axonometric view of the present utility model.

[0027] In the figure:

[0028] 1 Fixed base, 11 Limit plate, 111 Outer support area, 112 Outer joint surface, 113 Inner joint surface;

[0029] 2 Rotating assembly, 21 Rotating part, 22 Protruding part, 221 Barbed surface, 222 Transition angle, 223 Guiding surface, 224 Reinforced connection area; 3 Activity gap. Specific implementation mode

[0030] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Embodiment 1:

[0032] As Figure 1 , 2 Shown, a rotation limit structure of a rotary electricity meter connector includes a fixed base 1, the fixed base 1 is rotatably connected with a rotating assembly 2, a limit plate 11 is arranged on the fixed base 1, the rotating assembly 2 includes a rotating part 21 located between the limit plates 11, and a protruding part 22 is arranged on the rotating part 21. When the rotating part 21 rotates to the maximum opening degree during the opening process, the protruding part 22 abuts against the limit plate 11.

[0033] In this application, it includes a fixed base 1 and a rotating assembly 2. Among them, the fixed base 1 is in a fixed state, while the rotating assembly 2 can rotate relative to the fixed base 1. The rotating assembly 2 has two states, namely the closing state and the opening state, relative to the fixed base 1. When the rotating assembly 2 rotates outward relative to the fixed base 1, it is the process of the rotating assembly 2 changing from the closing state to the opening state. During the closing process, the electricity meter is connected to the rotating assembly 2, and the current passes through the electricity meter through conductive components such as copper pins. When the rotating assembly 2 moves from the closing state to the opening state, the conductive components such as copper pins on the rotating assembly 2 gradually separate from the circuit unit on the fixed base 1. In the opening state, that is, when the rotating assembly 2 rotates to the maximum opening degree, the copper pins used to connect the fixed base 1 and the electricity meter on the rotating assembly 2 are completely separated from the fixed base 1 and are in a power-off state. Therefore, at this time, the copper pin parts of the electricity meter and the rotating assembly 2 exposed on the outside are in a non-conductive state.

[0034] In such cases, in the prior art, when the rotating assembly 2 rotates to the open position, the rotating assembly 2 cannot be effectively fixed and constrained, resulting in the rotating assembly 2 being in an unstable state during the replacement of the electricity meter. If the rotating assembly 2 is pushed back due to improper operation or accidental touch, the exposed copper needle part of the rotating assembly 2 will be connected to the live part of the fixed base 1, thereby posing a risk of electric shock.

[0035] Therefore, in the present application, a protrusion 22 is provided on the rotating part of the rotating part 21, and a limiting plate 11 is provided on the fixed base 1, wherein the limiting plate 11 can block the protrusion 22 during the rotation process, thereby ensuring that a damping feedback effect is provided to the user during the rotation process. In the present application, after the rotating part 21 opens the gate and rotates to the maximum opening, the protrusion 22 abuts on the limiting plate 11. Since the rotating part is at the maximum opening at this time, it cannot continue to rotate outward. Since the protrusion 22 has abutted the limiting plate 11 at this time, it cannot rotate inward without a large external force, thereby limiting the rotating component 2 to the position of the maximum opening of the gate. In this state, it can be ensured that the rotating component 2 will not shake, and thereby ensure that the conductive copper needle connecting the electric energy meter and the fixed base 1 on the rotating component 2 can be stably in the power-off state, thereby ensuring safety during the replacement of the electric energy meter.

[0036] like Figure 3 、 4 As shown, the limit plate 11 includes an outer support area 111. When the rotating part 21 rotates until the protrusion 22 contacts the outer support area 111, the protrusion 22 squeezes and stretches the limit plate 11 outward. The limit plate 11 includes an outer support area 111. The outer support area 111 is the area of the limit plate 11 that the protrusion 22 abuts and stretches during the rotation of the rotating part 21. Since there is always squeezing friction between the outer support area 111 and the protrusion 22 during the rotation process, it can provide a damping feedback effect for the staff. When in the open state with the maximum opening, the protrusion 22 abuts the limit plate 11 instead of stretching the limit plate 11. Therefore, during the transition between these two states, the installer will have an obvious sudden change. At this time, the rotating assembly 2 is at the maximum opening. At the same time, the inward and outward rotation of the rotating assembly 2 is constrained to avoid the installer still maintaining force when the door is opened to the maximum opening, thereby affecting and damaging other limiting structures.

[0037] like Figure 4 、 5 As shown, the limit plate 11 includes an outer surface 112, and the protrusion 22 includes a hook surface 221. When the rotating part 21 is opened and rotated to the maximum opening, the hook surface 221 is in contact with the outer surface 112. A transition angle 222 is provided on the side of the hook surface 221 away from the rotating part 21.

[0038] The limiting plate 11 includes an external surface 112, wherein the external surface 112 is located on the outer side of the limiting plate 11, and a barbed surface 221 is provided on the protrusion 22. When the rotating part 21 is opened and rotated to the maximum opening, the protrusion 22 is located on the outer side of the limiting plate 11. At this time, the barbed surface 221 is in contact with the external surface 112, so that the rotating component 2 receives resistance when retreating. Due to the surface-to-surface contact, the resistance effect is more obvious, and the stabilization effect is also better. A transition angle 222 is provided on the barbed surface 221, so that when the rotating component 2 is pushed inward, the extrusion transition between the barbed surface 221 and the limiting plate 11 can be smoother. At the same time, when the protrusion 22 moves on the outer support area 111, the smoothness of the movement can be guaranteed, and the corners of the barbed surface 221 are avoided from being squeezed and worn during the repeated retreat process.

[0039] like Figure 3 、 4 As shown in Figures 5 and 6, the limit plate 11 includes an inner surface 113, and the protrusion 22 includes a guide surface 223. When the rotating part 21 is in the closed state, the guide surface 223 is located on the side close to the inner surface 113. The side of the limit plate 11 close to the inner side is the inner surface 113. During the outward rotation of the rotating assembly 2, the protrusion 22 will first abut against the inner surface 113, and then the limit plate 11 will continue to move outward by pressing the protrusion 22 outward. Therefore, the guide surface 223 is provided on the protrusion 22. The guide surface 223 is an arc surface or an inclined surface, which can make the transition process from the protrusion 22 abutting against the inner surface 113 to supporting the limit plate 11 smoother, while reducing the contact area between the protrusion 22 and the limit plate 11 during the process of supporting the limit plate 11, thereby reducing friction.

[0040] like Figure 3 As shown, when the rotating portion 21 is in the closed state, there is a movable gap 3 between the guide surface 223 and the inner surface 113. When the rotating portion 21 is in the closed state, the movable gap 3 between the guide surface 223 and the inner surface 113 enables the guide surface 223 to obtain an initial velocity when contacting the inner surface 113, helping the protrusion 22 to better open the limit plate 11 while providing a sense of stop.

[0041] like Figure 3 As shown, a reinforced connection area 224 is provided on the side of the raised portion 22 close to the rotating portion 21. The reinforced connection area 224 is provided on the raised portion 22, wherein the reinforced connection area 224 is provided on the side of the raised portion 22 close to the rotating portion 21. The reinforced connection area 224 is a widened and thickened portion to ensure the connection strength between the raised portion 22 and the rotating portion 21, avoid the connection between the raised portion 22 and the rotating portion 21 from being damaged during multiple opening and closing processes, and improve the life of the structure.

[0042] like Figure 2As shown, the cross-sectional shape of the raised portion 22 is a triangular structure. The cross-sectional shape of the raised portion 22 is a right-angled triangle structure. The raised portion 22 includes a right-angled side and a hypotenuse. When the rotating portion 21 opens the gate and rotates to the maximum opening, the hypotenuse fits with the limit plate 11. The cross-sectional shape of the raised portion 22 is a triangular structure, which can save injection molding materials while ensuring structural strength. With a right-angled triangle structure, the raised portion 22 has a right-angled side and a hypotenuse. When the opening is maximum, the hypotenuse fits with the limit plate 11, which increases the contact area with the limit plate 11, thereby ensuring the limit stability in the maximum opening state.

[0043] like Figure 1 As shown, the limiting plates 11 are provided on both sides of the fixed base 1, and the raised portions 22 are provided on both sides of the rotating portion 21. The limiting plates 11 are provided on both sides, and the raised portions 22 are correspondingly provided on both sides. Therefore, during the closing process, the blocking effect and the limiting effect can be uniform and symmetrical, ensuring stability.

[0044] The assembly and working process of the rotation limiting structure of the rotary electric energy meter connector in this embodiment is as follows: in this embodiment, it includes a fixed fixed base 1, wherein the fixed base 1 in this embodiment is provided with a limiting plate 11 structure on both sides, and the limiting plate 11 structure is provided on both sides, so that the area between the two limiting plates 11 forms an installation area that can prevent the rotation component 2. Furthermore, in this embodiment, the rotating component 2 is rotatably connected to the fixed base 1, and the rotating component 2 can rotate between the two limit plates 11, wherein the rotating component 2 includes a rotating part 21, and a protrusion 22 is provided on the rotating part 21. The protrusion 22 extends to both sides relative to the rotating part 21, so the protrusion 22 provided on the rotating part 21 increases the lateral dimension of the rotating component 2 at this location. Furthermore, the distance between the protrusions 22 on both sides is greater than the distance between the two limit plates 11. Therefore, when the rotating component 2 rotates, the protrusion 22 will abut the limit plates 11, thereby generating a sense of pause, wherein the distance between the protrusions 22 exceeds the smaller distance between the limit plates 11, so that the two limit plates 11 can be stretched apart by the protrusion 22 during continuous force application.

[0045] Further, in this embodiment, the limiting plate 11 includes an inscribed surface 113 and an outer circumferential surface 112. The inscribed surface 113 is the inner side of the limiting plate 11, and the outer circumferential surface 112 is located on the outer side of the limiting plate 11. The area between the inscribed surface 113 and the outer circumferential surface 112 on the limiting plate 11 is the outer support area 111. After the convex portion 22 abuts against the inscribed surface 113 and continues to exert an outward force, the convex portion 22 outwardly supports the outer support area 111. And until the rotating assembly 2 moves to the maximum opening degree, the convex portion 22 always maintains the abutting state with the outer support area 111. Until after the rotating assembly 2 moves to the maximum opening degree, the convex portion 22 disengages from the outer support area 111 and abuts against the outer circumferential surface 112. At this time, since the rotating assembly 2 is at the maximum opening degree and due to the restraint effect of the remaining limiting components, the rotating assembly 2 cannot continue to move outward. At the same time, since the convex portion 22 abuts against the outer circumferential surface 112 at this time, the rotating assembly 2 cannot move inward either. At this time, it is in the open gate state. Therefore, when replacing the electric energy meter at this time, the stability and safety of the replacement process can be ensured.

[0046] Further, corresponding to the inscribed surface 113 and the outer circumferential surface 112, a barb surface 221 and a guiding surface 223 are provided on the convex portion 22. In the closed state, the guiding surface 223 is arranged close to the inscribed surface 113 side. Therefore, when the rotating assembly 2 moves outward from the closed state, the guiding surface 223 will abut against the inscribed surface 113. Since the guiding surface 223 is a bevel or arc surface structure, when continuously exerting force to move the rotating assembly 2 outward, the guiding surface 223 will squeeze the limiting plate 11 to expand the limiting plate 11 to both sides. At this time, the convex portion 22 contacts the outer support area 111. A barb surface 221 is also provided on the convex portion 22. When the rotating assembly 2 rotates to the maximum open gate position, the barb surface 221 contacts and fits with the outer circumferential surface 112 to ensure the stability of the connection. In this embodiment, in the maximum open gate state, the barb surface 221 is in a vertical state, and the outer circumferential surface 112 is also in a vertical state.

[0047] Furthermore, in this embodiment, a transition angle 222 is provided at the end of the barb surface 221. The transition angle 222 can be a rounded corner or a chamfer. By providing the transition angle 222, during the rotation process of the rotating assembly 2, the transition angle 222 can more smoothly push out the limiting plate 11 outward. Moreover, during the movement of the convex portion 22 in the outer support area 111, the contact area between the convex portion 22 and the outer support area 111 can be reduced, thereby reducing the frictional resistance. At the same time, in this embodiment, the convex portion 22 is arranged in a structure with a right-angled triangle cross-section, further reducing the contact area between the convex portion 22 and the outer support area 111, while reducing the injection molding area. And because the right-angled triangle structure is adopted and the hypotenuse is set as the barb surface 221, the contact area between the barb surface 221 and the external contact surface 112 is increased, thereby ensuring the stability of the limit.

[0048] Through the above technical solutions, this embodiment can achieve the following technical effects: During the replacement process of the electric energy meter, it can prevent the copper needle from being charged due to the shaking of the rotating assembly 2, thereby avoiding the risk of electric shock to the operator, ensuring the stable state of the rotating assembly 2 during the replacement process, and improving the safety factor; it can improve the smoothness of the convex portion 22 during movement and ensure the limit stability of the convex portion 22 to the rotating assembly 2; it can save injection molding materials and increase the contact area of the barb surface 221, ensuring the stability of the limit.

Claims

1. A rotational limiting structure for a plug-in component of a rotary electric energy meter, comprising a fixed base (1), wherein the fixed base (1) is rotationally connected with a rotary component (2), and is characterized in that, A limit plate (11) is provided on the fixed base (1), and the rotating assembly (2) includes a rotating portion (21) located between the limit plates (11). A protrusion (22) is provided on the rotating portion (21). When the rotating portion (21) rotates to a maximum opening, the protrusion (22) abuts against the limit plate (11).

2. The rotational limit structure of a rotary power meter connector according to claim 1, characterized in that, The limiting plate (11) includes an outer supporting area (111). When the rotating portion (21) rotates until the raised portion (22) contacts the outer supporting area (111), the raised portion (22) presses the limiting plate (11) outward to open it.

3. The rotational limit structure of a rotary power meter connector according to claim 1, characterized in that, The limiting plate (11) includes an external surface (112), and the raised portion (22) includes a barbed surface (221). When the rotating portion (21) rotates to a maximum opening, the barbed surface (221) fits the external surface (112).

4. The rotational limit structure of a rotary power meter connector according to claim 3, characterized in that, A transition angle (222) is provided on the side of the barb surface (221) away from the rotating portion (21).

5. The rotational limit structure of a rotary electric energy meter connector according to claim 1, characterized in that, The limiting plate (11) includes an inner connecting surface (113), and the raised portion (22) includes a guide surface (223). When the rotating portion (21) is in a closed state, the guide surface (223) is located on a side close to the inner connecting surface (113).

6. The rotational limit structure of a rotary power meter connector according to claim 5, characterized in that, When the rotating portion (21) is in a closed state, a movable gap (3) exists between the guide surface (223) and the inner surface (113).

7. A rotation limiting structure for a rotary electric energy meter connector according to any one of claims 1 to 6, characterized in that: A reinforced connection area (224) is provided on one side of the raised portion (22) close to the rotating portion (21).

8. A rotation limiting structure for a rotary electric energy meter connector according to any one of claims 1 to 6, characterized in that: The cross-sectional shape of the raised portion (22) is a triangular structure.

9. The rotation limiting structure of the rotary electric energy meter connector according to claim 8, characterized in that: The cross-section of the raised portion (22) is a right-angled triangle structure. The raised portion (22) includes a right-angled side and a hypotenuse. When the rotating portion (21) rotates to the maximum opening, the hypotenuse fits the limit plate (11).

10. A rotation limiting structure for a rotary electric energy meter connector according to any one of claims 1 to 6, characterized in that: The limiting plates (11) are arranged on both sides of the fixed base (1), and the raised portions (22) are arranged on both sides of the rotating portion (21).

Citation Information

Patent Citations

  • Simple device for quickly replacing electric energy meter without power failure

    CN114264853A