Electricity stealing prevention electric energy meter

Abstract

The electric energy meter comprises an electric energy meter body, a mounting base and an interlocking mechanism, one end of the electric energy meter body is provided with a first connecting part and a first connecting end in a protruding mode, a connecting cavity is defined by the first connecting part, and the first connecting end is located in the connecting cavity; a second connecting part is arranged at one end of the mounting base in a protruding mode and connected to the first connecting part, a second connecting end is arranged on the mounting base opposite to the first connecting end, the second connecting end is located in the connecting cavity and connected to the first connecting end, and a buffering mechanism is arranged on the mounting base opposite to the second connecting end; the interlocking mechanism is arranged on the first connecting part and is provided with an open end in the direction far away from the electric energy meter body, one end, far away from the open end, of the interlocking mechanism is provided with a locking structure, the locking structure penetrates through the second connecting part, and a self-locking structure is arranged between the locking structure and the interlocking mechanism and is connected to the open end. The electric energy meter is convenient to mount and dismount, and the electricity stealing prevention performance of the electric energy meter is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and particularly relates to an electric energy meter for preventing electricity theft. Background Art

[0002] An electric energy meter is a device used to measure and record electricity consumption. It is an indispensable part of the public power system, used to accurately record the electricity consumption of users and provide relevant data for power supply companies to settle fees. However, during the use of the electric energy meter, there is a problem of electricity theft, which leads to the unstable operation of the power system and the decline of service quality.

[0003] In the related art, the electric energy meter is provided with an anti-electricity-theft protective case. The protective case wraps around the electric energy meter and is provided with a transparent glass screen facing the electric energy meter, enabling users to directly see the data on the meter from the outside. The protective case adopts a special encapsulation method to make the assembled electric energy meter difficult to disassemble. Although this can prevent secondary disassembly and modification, while improving the anti-electricity-theft performance through encapsulation, it also makes the electric energy meter difficult to maintain. Summary of the Invention

[0004] The main purpose of the present invention is to provide an electric energy meter for preventing electricity theft, aiming to make the electric energy meter easy to install and disassemble and improve the anti-electricity-theft performance of the electric energy meter.

[0005] To achieve the above purpose, an electric energy meter for preventing electricity theft proposed by the present invention includes an electric energy meter body, a mounting base, and an interlocking mechanism:

[0006] One end of the electric energy meter body protrudes with a first connection part and a first connection end. The first connection part encloses a connection cavity, and the first connection end is located in the connection cavity. The first connection part and the first connection end are arranged on the same central axis;

[0007] One end of the mounting base protrudes with a second connection part. The second connection part is connected to the first connection part. The mounting base is provided with a second connection end opposite to the first connection end. The second connection end is located in the connection cavity and is connected to the first connection end. The mounting base is provided with a buffer mechanism opposite to the second connection end;

[0008] The interlocking mechanism is arranged on the first connection part and has an open end facing away from the electric energy meter body. One end of the interlocking mechanism away from the open end is provided with a locking structure. The locking structure penetrates through the second connection part. There is a self-locking structure between the locking structure and the interlocking mechanism. The self-locking structure is connected to the open end.

[0009] In one embodiment of the present application, the self-locking structure is provided on the inner wall of the interlocking mechanism and is arranged facing the locking structure. The locking structure is slidably connected to the self-locking structure. The self-locking structure includes a self-locking groove and an adjustment groove. The self-locking groove is connected to the adjustment groove. The self-locking groove is parallel to the bottom of the interlocking mechanism.

[0010] The adjusting groove is provided with an unlocking portion relative to the open end, and the distance between the self-locking groove and the open end is greater than the distance between the unlocking portion and the open end.

[0011] In one embodiment of the present application, the locking structure is provided with an avoidance groove parallel to the bottom of the interlocking mechanism, and a ball is connected between the avoidance groove and the self-locking structure;

[0012] A reset structure is provided between the locking structure and the interlocking mechanism, and the locking structure moves toward the open end under the action of the reset structure.

[0013] In one embodiment of the present application, the adjustment slot includes a buffer slot and an unlocking slot, one end of the buffer slot is connected to the unlocking slot, and the other end is connected to the self-locking slot, the end of the unlocking slot away from the buffer slot is connected to the self-locking slot, the distance between the buffer slot and the open end is greater than the distance between the self-locking slot and the open end, and the unlocking slot is provided with an unlocking portion;

[0014] The interlocking mechanism is provided with a guide portion relative to the unlocking portion, and the guide portion is connected to one end of the unlocking portion facing the buffer groove.

[0015] In one embodiment of the present application, a limiting portion is protruding from the outer periphery of the locking structure toward the open end, a plurality of limiting holes are arrayed on the limiting portion, the self-locking structure is provided with a limiting structure opposite to the limiting holes, and the interlocking mechanism is provided with a first spring opposite to the limiting structure;

[0016] The limiting structure includes a limiting section and a release section. One end of the limiting section is connected to the first spring, and the other end is connected to the release section.

[0017] In one embodiment of the present application, the locking structure is provided with an adjustment connection portion toward the open end, the locking structure and the adjustment connection portion are arranged on the same central axis, and the adjustment connection portion is connected to the limiting hole.

[0018] In one embodiment of the present application, the mounting base includes a base and a protective shell, the base is provided with a protruding partition structure, the partition structure and the base enclose a protective space, the outer periphery of the base and the partition structure are clamped to form a mounting portion, and the protective shell is slidably connected to the partition structure and connected to the mounting portion;

[0019] The partition structure is provided with a plurality of recesses protruding toward the protective space array, the protective shell is wrapped around the plurality of recesses, the recesses are provided with locking members toward the base, and the recesses are provided with a second spring toward the protective shell;

[0020] The protective shell is provided with a guide portion facing the base, and the guide portion is connected to the base.

[0021] In one embodiment of the present application, the guide portion and the protective shell form a first contact surface, the first contact surface is located in the connecting cavity, and a reinforcing wing is provided on the outer periphery of the guide portion relative to the protective shell.

[0022] In one embodiment of the present application, the clearance groove is provided with a first guide column relative to the second spring, the protective shell is provided with a second guide column relative to the second spring, and the first guide column and the second guide column are coaxially arranged.

[0023] In one embodiment of the present application, an insulating plate is provided at an end of the second connecting end away from the first connecting end, and a buffer mechanism is provided between the insulating plate and the base;

[0024] The second connection end includes a phase power contact, a neutral power contact, and a load contact. The phase power contact and the neutral power contact are chamfered relative to the first connection end, and the load contact is provided with a tapered surface relative to the first connection end. The first connection end is plugged into the second connection end, and the insulating plate is provided with a through hole relative to the second connection end, and the through hole is connected to the protective space.

[0025] By adopting the above technical solution, the present invention has the following advantages:

[0026] 1. A first connecting portion and a first connecting end are coaxially provided at one end of the electric energy meter body. The first connecting portion forms a first contact surface on the electric energy meter body, and the first connecting end forms a second contact surface on the electric energy meter body. The first contact surface is connected to the connecting cavity, and the second contact surface is within the first contact surface. The first connecting end is the connecting pin of the electric energy meter, and the first connecting portion is completely wrapped around the first connecting end. When the electric energy meter body is connected to the mounting base, the first connecting end will be between the electric energy meter body and the mounting base. In this way, the pins of the electric energy meter body can be hidden, thereby improving the anti-theft performance of the electric energy meter, and the pins can be better protected, thereby increasing the service life of the electric energy meter.

[0027] 2. The mounting base is provided with a second connecting portion and a second connecting end, and the mounting base is used to completely wrap around the household cable. After the cable enters the residential building, it will be inserted into the mounting base from the end of the mounting base away from the electricity meter body, and then the second connecting end is used to connect the household cable, which can efficiently realize the concealment of the household cable and effectively prevent electricity theft. Before installation, the mounting base can first connect the second connecting end to the household cable, and then connect or insert the bottom of the mounting base into the wall of the installation, and use external bolts for locking, which can effectively improve the installation efficiency of the mounting base. The first connecting portion and the second connecting portion are arranged relative to each other, and the first connecting portion and the second connecting portion can be a structure with mutually threaded connections, or they can be closely attached to each other, can limit each other and slide, and with this structure, after the mounting base is installed, the electricity The meter body quickly docks with the mounting base itself. This structure can significantly improve the installation efficiency of the electricity meter. After the first connection part and the second connection part are docked, the first connection end and the second connection end in the connection cavity can also be quickly docked, because the mounting base is provided with a buffer mechanism relative to the second connection end. The buffer mechanism itself is generally a plurality of springs, and the plurality of springs are connected to the second connection end. When the first connection end is connected to the second connection end, the spring will cause the second connection end to move toward the first connection end, which is used to improve the connection stability of the electricity meter body. While the first connection end and the second connection end are stably connected, both are wrapped in the connection cavity, which can make the entire electricity meter have high anti-theft performance while making the entire electricity meter easy to disassemble or install, which can effectively reduce the maintenance cost of the electricity meter.

[0028] 3. To further improve the anti-stealing electricity performance of the electricity meter body and prevent someone from disassembling the electricity meter body from the mounting base after the electricity meter body is installed, a locking mechanism is provided between the first connecting part and the second connecting part. In this application, the inner wall of the first connecting part is provided with internal threads, and the outer wall of the second connecting part is provided with external threads. The first connecting part surrounds the second connecting part. Therefore, the locking mechanism is arranged inside the first connecting part and is provided with a locking structure facing the second connecting part. Similarly, the threaded positions of the first connecting part and the second connecting part can be interchanged, so that structurally the second connecting part surrounds the first connecting part, and the locking mechanism is arranged on the second connecting part. The main function of the locking mechanism is that when the electricity meter body is screwed onto the mounting base, the locking mechanism inside the first connecting part can be manually activated and partially penetrate into the second connecting part. The locking mechanism is located between the two connecting parts, and the left and right limits can be achieved. The activation of the locking mechanism does not require additional tools or additional operations. Only by pressing the locking structure along the open end of the locking mechanism can the locking be completed. However, once the locking is completed, the locking structure will be completely locked by the self-locking structure between the locking structure and the locking mechanism. And since one end of the locking structure facing the open end will be inside the first connecting part after the locking structure penetrates into the second connecting part, it is difficult for the locking mechanism to release the locking of the self-locking structure without the help of other tools. Through this locking mechanism that is difficult to unlock automatically, the electricity meter body can be quickly locked, and users can be effectively prevented from unlocking it by themselves. While the locking mechanism is convenient for installation and locking, it can effectively prevent outsiders without specific tools from opening it, and can improve the anti-stealing electricity performance of the electricity meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0030] Figure 1 Structural schematic diagram of the electricity meter for anti-stealing electricity of the present invention;

[0031] Figure 2 Cross-sectional view of the electricity meter for anti-stealing electricity of the present invention;

[0032] Figure 3 Cross-sectional view of the guiding part of the electricity meter for anti-stealing electricity of the present invention;

[0033] Figure 4 Structural schematic diagram of the base of the electricity meter for anti-stealing electricity of the present invention;

[0034] Figure 5An exploded view of the interlocking mechanism of the anti-theft electric energy meter of the present invention;

[0035] Figure 6 A cross-sectional view of the interlocking mechanism of the anti-theft electric energy meter of the present invention;

[0036] Figure 7 The figure is a schematic structural diagram of an unlocking tool for an anti-theft electricity meter according to the present invention.

[0037] Description of Figure Numbers:

[0038] 1. Electricity meter body; 11. First connection part; 12. First connection end; 2. Mounting seat; 3. Base; 31. Partition structure; 32. Avoidance groove; 4. Protective shell; 41. Second connection part; 42. Second connection end; 43. Insulation plate; 44. Buffer mechanism; 5. Guide part; 6. Interlocking mechanism; 61. Self-locking structure; 62. Self-locking groove; 63. Adjustment groove; 64. Buffer groove; 65. Unlocking groove; 66. Unlocking part; 7. Limiting structure; 8. Locking structure; 81. Avoidance groove; 82. Limiting part; 83. Limiting hole; 9. Reset structure.

[0039] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0041] Reference Figures 1 to 7 To achieve the above-mentioned object, the present invention provides an anti-theft electric energy meter, comprising an electric energy meter body 1, a mounting base 2, and a locking mechanism 6. A first connecting portion 11 and a first connecting end 12 are protruding from one end of the electric energy meter body 1. The first connecting portion 11 encloses a connecting cavity, and the first connecting end 12 is located in the connecting cavity. The first connecting portion 11 and the first connecting end 12 are arranged on the same central axis.

[0042] A second connecting portion 41 is protruding from one end of the mounting base 2. The second connecting portion 41 is connected to the first connecting portion 11. The mounting base 2 is provided with a second connecting end 42 opposite the first connecting end 12. The second connecting end 42 is located in the connecting cavity and connected to the first connecting end 12. The mounting base 2 is provided with a buffer mechanism 44 opposite the second connecting end 42.

[0043] The interlocking mechanism 6 is provided at the first connecting portion 11 and has an open end facing away from the electricity meter body 1. A locking structure 8 is provided at one end of the interlocking mechanism 6 away from the open end. The locking structure 8 penetrates through the second connecting portion 41. A self-locking structure 61 is provided between the locking structure 8 and the interlocking mechanism 6. The self-locking structure 61 is connected to the open end.

[0044] One end of the electricity meter body 1 is coaxially provided with a first connecting portion 11 and a first connecting end 12. The first connecting portion 11 forms a first contact surface on the electricity meter body 1. The first connecting end 12 forms a second contact surface on the electricity meter body 1. The first contact surface is connected to the connection cavity. The second contact surface is within the first contact surface. The first connecting end 12 is the connection pin of the electricity meter. The first connecting portion 11 completely surrounds the first connecting end 12. When the electricity meter body 1 is connected to the mounting base 2, the first connecting end 12 will be between the electricity meter body 1 and the mounting base 2. In this way, not only can the pins of the electricity meter body 1 be hidden, improving the anti-stealing electricity performance of the electricity meter, but also the pins can be better protected, increasing the service life of the electricity meter.

[0045] The mounting base 2 is provided with a second connecting portion 41 and a second connecting end 42. The mounting base 2 is used to completely surround the incoming household cable. After the cable enters the residential building, it will penetrate into the mounting base 2 from one end of the mounting base 2 facing away from the electricity meter body 1, and then the incoming household cable is connected by using the second connecting end 42, which can efficiently hide the incoming household cable and effectively prevent stealing electricity. Before installation, the second connecting end 42 and the incoming household cable can be connected first, and then the bottom of the mounting base 2 is connected or penetrated into the installed wall surface, and locked with external bolts, which can effectively improve the installation efficiency of the mounting base 2. The first connecting portion 11 and the second connecting portion 41 are arranged oppositely, and the first connecting portion 11 and the second connecting portion 41 can be structures with mutually arranged threads, or structures that are closely attached to each other and can be mutually limited and slid. With this structure, after the mounting base 2 is installed, the electricity meter body 1 can be quickly docked with the mounting base 2 itself. This structure can significantly improve the installation efficiency of the electricity meter. And after the first connecting portion 11 and the second connecting portion 41 are docked, the first connecting end 12 and the second connecting end 42 in the connection cavity can also be quickly docked. Because a buffer mechanism 44 is provided on the mounting base 2 relative to the second connecting end 42. The buffer mechanism 44 is generally multiple springs, and the multiple springs are connected to the second connecting end 42. When the first connecting end 12 is connected to the second connecting end 42, the spring will cause the second connecting end 42 to move towards the first connecting end 12, for improving the connection stability of the electricity meter body 1. While the first connecting end 12 and the second connecting end 42 are stably connected, both are surrounded in the connection cavity, which can make the whole electricity meter have high anti-stealing electricity performance while making the whole electricity meter easy to disassemble or install, and can effectively reduce the maintenance cost of the electricity meter.

[0046] In order to further improve the anti - electricity - theft performance of the electricity meter body 1 and prevent someone from disassembling the electricity meter body 1 from the mounting base 2 after the electricity meter body 1 is installed, a locking mechanism 6 is provided between the first connecting portion 11 and the second connecting portion 41. In this application, the inner wall of the first connecting portion 11 is provided with internal threads, and the outer wall of the second connecting portion 41 is provided with external threads. The first connecting portion 11 surrounds the second connecting portion 41. Therefore, the locking mechanism 6 is arranged inside the first connecting portion 11 and is provided with a locking structure 8 facing the second connecting portion 41. Similarly, the threaded positions of the first connecting portion 11 and the second connecting portion 41 can be interchanged, so that structurally the second connecting portion 41 surrounds the first connecting portion 11 and the locking mechanism 6 is arranged on the second connecting portion 41. The main function of the locking mechanism 6 is that when the electricity meter body 1 is screwed onto the mounting base 2, the locking mechanism 6 inside the first connecting portion 11 can be manually activated and partially penetrate into the second connecting portion 41. The locking mechanism 6 is located between the two connecting portions and can achieve the function of limiting. The activation of the locking mechanism 6 does not require additional tools or additional operations. Just press the locking structure 8 along the open end of the locking mechanism 6 to complete the locking. However, once the locking is completed, the locking structure 8 will be completely locked by the self - locking structure 61 between the locking structure 8 and the locking mechanism 6. And since one end of the locking structure 8 facing the open end will be inside the first connecting portion 11 after the locking structure 8 penetrates into the second connecting portion 41, it is difficult to release the locking of the self - locking structure 61 by the locking mechanism 6 without the help of other tools. Through this locking mechanism 6 that is difficult to automatically unlock, the electricity meter body 1 can be quickly locked, and it can effectively prevent users from unlocking it by themselves. While the locking mechanism 6 is convenient for installation and locking, it can effectively prevent outsiders without specific tools from opening it, which can improve the anti - electricity - theft performance of the electricity meter.

[0047] Appendix Figure 7What appears in the claim is an unlocking tool that can be used. Only for the chain mechanism 6 proposed in claim 1, an unlocking tool needs to be redesigned. The self-locking structure 61 in claim 1 can be a structure in which a blocking bead cooperates with a spring. A lock groove is provided on the side of the chain mechanism 6. When the blocking locking structure 8 is extended into the chain mechanism 6, the blocking bead will dock with the lock groove, so that the spring can push the blocking bead. The diameter of the blocking bead is larger than the width of the lock groove, and when the spring is in the released state, at least half of the blocking bead penetrates the outer periphery of the locking structure 8, so that the blocking bead will completely jam the locking structure 8. An unlocking tool is needed, and the end of the tool The diameter of the head adapter is set to match the open end so that the tool can be inserted just right. The end of the tool is also provided with a structure of beads cooperating with a spring. The spring elastic force in the tool is much higher than the spring elasticity in the self-locking structure 61. When the beads in the tool are against the blocking beads, the blocking beads will be pushed back into the chain mechanism 6. The beads replace the blocking beads, allowing the tool to jam the locking structure 8. Through this structure, the locking structure 8 can be quickly removed using tools to achieve the purpose of rapid installation and disassembly. At the same time, without specific tools, the chain mechanism 6 is difficult to remove, which can effectively prevent electricity theft. At the same time, strict sealing can avoid safety hazards.

[0048] The interlocking mechanism 6 itself has a variety of styles, and its purpose is to protect the electric energy meter and make the electric energy meter itself easy to install.

[0049] See also Figures 5 to 6 The self-locking structure 61 is provided on the inner wall of the interlocking mechanism 6 and faces the locking structure 8. The locking structure 8 is slidably connected to the self-locking structure 61. The self-locking structure 61 includes a self-locking groove 62 and an adjustment groove 63. The self-locking groove 62 is connected to the adjustment groove 63. The self-locking groove 62 is parallel to the bottom of the interlocking mechanism 6.

[0050] An unlocking portion 66 is provided at the open end of the adjustment groove 63 , and the distance between the self-locking groove 62 and the open end is greater than the distance between the unlocking portion 66 and the open end.

[0051] The self-locking structure 61 is a limiting slide groove, which includes a self-locking groove 62 and an adjusting groove 63 that are interconnected. The locking structure 8 is provided with a sliding protrusion relative to the slide groove. The sliding protrusion can be used to more conveniently adjust the position within the self-locking structure 61. The self-locking groove 62 is in a horizontal state, and the locking structure 8 cannot move up and down inside. It can only be unlocked by rotating the locking structure 8 into the adjusting groove 63. The unlocking part 66 of the adjusting groove 63 can make the locking structure 8 move toward the open end. Because the entire self-locking structure 61 and the locking structure 8 are all in the first connecting part 11, and other people are not clear about the style of the self-locking structure 61, the locking structure 8 is only provided with a special clamping structure corresponding to the specified tool. When there is no specified tool, it is difficult for the user to rotate the locking structure 8 inside the connecting part, and it is difficult to unlock. This structure can effectively improve the anti-theft performance.

[0052] Refer to in combination Figure 5 , a relief groove 81 is provided at the bottom of the locking structure 8 parallel to the bottom of the interlocking mechanism 6, and a ball is connected between the relief groove 81 and the self-locking structure 61;

[0053] A reset structure 9 is provided between the locking structure 8 and the interlocking mechanism 6, and the locking structure 8 moves toward the open end under the action of the reset structure 9.

[0054] Furthermore, a relief groove 81 is provided at the locking structure 8 parallel to the self-locking groove 62. The relief groove 81 surrounds the locking structure 8 and is connected to the self-locking structure 61. A ball is connected between the two. And a reset structure 9 is provided between the locking structure 8 and the interlocking mechanism 6. The locking structure 8 can be locked when it is in the locked state through the reset structure 9 and the self-locking structure 61.

[0055] And when the ball is at the unlocking part 66 and the user needs to lock it, by pressing the locking structure 8, one side of the ball will rotate along the relief groove 81, and the other side rotates in the adjustment groove 63 of the self-locking structure 61. The side of the locking structure 8 close to the open end will squeeze the ball, making it move toward the self-locking groove 62 by itself. With this structure, the interlocking mechanism 6 can be quickly locked, effectively improving the installation efficiency of the electric energy meter. At the same time, the disassembly is more flexible under this structure. While ensuring the anti-stealing electricity performance, it can effectively improve the user experience.

[0056] Refer to in combination Figures 5 to 6 , the adjustment groove 63 includes a buffer groove 64 and an unlocking groove 65. One end of the buffer groove 64 is connected to the unlocking groove 65, and the other end is connected to the self-locking groove 62. The end of the unlocking groove 65 far from the buffer groove 64 is connected to the self-locking groove 62. The distance between the buffer groove 64 and the open end is greater than the distance between the self-locking groove 62 and the open end. An unlocking part 66 is provided on the unlocking groove 65;

[0057] The interlocking mechanism 6 is provided with a guiding part 5 opposite to the unlocking part 66, and the guiding part 5 is connected to one end of the unlocking part 66 facing the buffer groove 64.

[0058] The adjustment groove 63 includes a buffer groove 64 and an unlocking groove 65. The buffer groove 64 is a V-shaped groove formed by bending the self-locking groove 62 in a direction away from the open end. The unlocking groove 65 is a V-shaped groove formed by bending the buffer groove 64 in a direction close to the open end. By providing the buffer groove 64 and the unlocking groove 65, the ball will move along the unlocking groove 65 under the action of pressure and will move to the self-locking groove 62. The self-locking groove 62 is parallel to the avoidance groove 81, resulting in the ball being unable to move up and down after reaching the self-locking groove 62, playing a role in jamming the ball. Only by using a special unlocking tool to extend into the first connecting portion 11 and rotating it to reach the buffer groove 64, and then pressing the locking structure 8 again, the ball can move along the buffer groove 64 and finally return to the unlocking portion 66 to complete the unlocking. The whole process is relatively simple, but it is difficult for outsiders to know how to unlock without knowing the specific structure of the self-locking structure 61. At the same time, it is difficult to jam and rotate the locking structure 8 without a specific unlocking tool, which can effectively improve the anti-theft performance of the electric energy meter.

[0059] The interlocking mechanism 6 is provided with a guiding portion 5 relative to the unlocking portion 66. When the locking structure 8 is unlocked, under the push of the reset structure 9, the ball will abut against one side of the unlocking groove 65 close to the open end. The guiding portion 5 is provided on the side of the unlocking groove 65 away from the open end. When it is necessary to guide the ball to the self-locking groove 62, since the guiding portion 5 is the top of the side of the unlocking groove 65 away from the open end, and this side of the top is close to the buffer groove 64, when the locking structure 8 is pressed down naturally, because the guiding portion 5 is not aligned with the unlocking portion 66, the ball will be connected to the side of the unlocking groove 65 away from the open end, and the ball can be guided more stably along this direction, avoiding the ball rolling into the buffer groove 64 when pressing down and locking the ball, resulting in locking failure. According to this principle, guiding portions 5 with similar structures are provided between the self-locking groove 62 and the buffer groove 64, and between the self-locking groove 62 and the unlocking groove 65, respectively, to prevent the ball from reversing, which can effectively improve the locking effect of the interlocking mechanism 6, and at the same time, it can be quickly unlocked by using tools when necessary, effectively improving the user experience.

[0060] Referring to Figures 1 to 5 , a limiting portion 82 protrudes from the outer periphery of the locking structure 8 toward the open end. A plurality of limiting holes 83 are arrayed on the limiting portion 82. The self-locking structure 61 is provided with a limiting structure 7 relative to the limiting holes 83, and the interlocking mechanism 6 is provided with a first spring relative to the limiting structure 7;

[0061] The limiting structure 7 includes a limiting section and a releasing section. One end of the limiting section is connected to the first spring, and the other end is connected to the releasing section.

[0062] To further fix the locking structure 8 and prevent it from being unlocked due to various reasons, a limiting portion 82 is provided on the outer periphery of the locking structure 8. When the locking structure 8 is in the unlocked state, the locking structure 8 is flush with the open end, which can prevent damage during transportation caused by protruding structures. When the locking structure 8 is in the locked working state, the entire locking structure 8 including the limiting portion 82 will enter the first connecting portion 11, which can ensure that the entire electricity meter body 1 cannot be disassembled without a specific unlocking tool.

[0063] A plurality of limiting holes 83 are provided on the limiting portion 82, and a limiting structure 7 is correspondingly provided on the self-locking structure 61 for the limiting holes 83. The limiting structure 7 functions as a self-lock through a first spring. When the ball reaches the self-locking groove 62, the limiting structure 7 will pass through the first spring and penetrate into the limiting holes 83 to complete the locking. Structurally, the limiting structure 7 includes a limiting section and a release section. Structurally, the limiting section is a cylinder, one end of which is connected to the first spring, and the release section is a hemisphere. The radius of the release section is greater than the thickness of the limiting portion 82. When the limiting structure 7 locks the locking structure 8, the release section penetrates into the limiting holes 83, the outer periphery of the locking structure 8 abuts against the limiting structure 7 and is connected to one side of the release section. The outer periphery of the locking structure 8 is between the limiting structure 7 and the release section. Refer to the appendix Figure 7 When it is necessary to unlock the locking structure 8, the unlocking tool includes a cylinder, the diameter of which is exactly equal to the inner diameter of the limiting portion 82. The outer wall of the unlocking tool will be slidably connected to the limiting portion 82 and abut against the release section. The limiting structure 7 will be pressed back into the interlocking mechanism 6, and the outer periphery of the locking structure 8 will be connected to the release section. Since the release section is a hemisphere, when the unlocking tool locks the locking structure 8 and rotates, when the locking structure 8 tries to rotate, it will give an inward force to the release section, thereby unlocking the limiting structure 7. Through the above structure, when there is a suitable unlocking tool, the electricity meter can be quickly disassembled, which can effectively improve the user experience.

[0064] Refer to in combination Figures 5 to 7 The locking structure 8 is provided with an adjusting connecting portion towards the open end. The locking structure 8 and the adjusting connecting portion are arranged on the same central axis. The adjusting connecting portion is connected to the limiting holes 83.

[0065] In this application, the adjusting connecting portion is an internal hexagonal screw hole structure. The unlocking tool can better lock the locking structure 8 through the internal hexagonal protrusion, which can facilitate the unlocking of the interlocking mechanism 6 when there is a specific unlocking tool and effectively reduce the maintenance cost. The locking structure 8 and the adjusting connecting portion are arranged on the same central axis, which can make the unlocking tool more convenient to operate.

[0066] Refer to in combination Figures 1 to 4, the mounting base 2 includes a base 3 and a protective case 4. The base 3 protrudes with a partition structure 31. The partition structure 31 and the base 3 enclose a protective space. An installation part is formed by clamping between the outer periphery of the base 3 and the partition structure 31. The protective case 4 is slidably connected to the partition structure 31 and connected to the installation part;

[0067] The partition structure 31 protrudes with a plurality of relief grooves 32 arrayed towards the protective space. The protective case 4 surrounds the plurality of relief grooves 32. The relief grooves 32 are provided with locking members towards the base 3 and second springs towards the protective case 4;

[0068] The protective case 4 is provided with a guiding part 5 towards the base 3, and the guiding part 5 is connected to the base 3.

[0069] The mounting base 2 includes a base 3 and a protective case 4. The partition structure 31 can enclose a protective space. The protective space is used to protect the incoming household cable. At the same time, the partition structure 31 can improve the protection performance of the mounting base 2, avoid the cable being affected, and ensure the stable operation of the electricity meter. The connection of the base 3 to the installation part can improve the sealing performance of the protective space. The relief grooves 32 are located on the partition structure 31 and inside the protective case 4. The relief structure can be provided with locking members for fixing the entire mounting base 2, or second springs for connecting the base 3 and the protective case 4. The protective case 4 is provided with a guiding part 5 towards the base 3. Through the guiding part 5, the user can use a long bolt to fix the base 3 from the protective case 4, avoiding the protective case 4 being separated from the base 3 due to the second spring. When using a long screw to lock the mounting base 2, the locking members and the second springs will be completely sealed and hidden, which can effectively improve the sealing performance of the entire structure.

[0070] During installation, the incoming household cable is first connected to the second connection end 42, then the base 3 is fixed with the locking member, and then the mounting base 2 is fixed with a long bolt. The electricity meter body 1 is screwed onto the second connection part 41, and finally, the quick locking can be achieved through the interlocking mechanism 6. The cooperation of these structures can make the electricity meter easy to install.

[0071] Refer to in combination Figures 1 to 3 , the guiding part 5 and the protective case 4 form a first contact surface. The first contact surface is located in the connection cavity. Reinforcing fins are provided on the outer periphery of the guiding part 5 relative to the protective case 4.

[0072] There are at least two guiding parts 5. The guiding parts 5 are connected to the inner wall of the protective case 4. The projection of the guiding parts 5 outside the protective case 4 will be located in the connection cavity. In this way, when the electricity meter body 1 cannot be disassembled, the mounting base 2 itself cannot be disassembled, and the interlocking mechanism 6 can lock the entire electricity meter. When the interlocking mechanism 6 is not opened, the entire electricity meter cannot be disassembled, which can effectively improve the anti-electricity-stealing performance of the entire electricity meter.

[0073] A plurality of reinforcing fins are provided between the guide portion 5 and the protective shell 4 to increase the strength of the guide portion 5 itself, thereby effectively preventing the guide portion 5 from being damaged during operation.

[0074] See also Figures 1 to 4 The give way groove 32 is provided with a first guide column relative to the second spring, and the protective shell 4 is provided with a second guide column relative to the second spring. The first guide column and the second guide column are coaxially arranged.

[0075] A second spring is provided in part of the clearance groove 32. In order to make the second spring work better, the clearance groove 32 is provided with a first guide column relative to the second spring, and the protective shell 4 is provided with a second guide column relative to the second spring. The second spring is passed through the two guide columns. When the protective shell 4 abuts against the mounting portion, the two guide columns are connected, which can effectively ensure the stable operation of the second spring.

[0076] See also Figures 1 to 4 An insulating plate 43 is provided at one end of the second connecting end 42 away from the first connecting end 12 , and a buffer mechanism 44 is provided between the insulating plate 43 and the base 3 ;

[0077] The second connection end 42 includes a phase power contact, a neutral power contact, and a load contact. The phase power contact and the neutral power contact are chamfered relative to the first connection end 12, and the load contact is provided with a tapered surface relative to the first connection end 12. The first connection end 12 is inserted into the second connection end 42, and the insulating plate 43 is provided with a through hole relative to the second connection end 42, and the through hole is connected to the protective space.

[0078] In the present application, the first and second connection terminals 42 both include a phase power contact, a neutral power contact, and a load contact, wherein the phase power contact and the neutral power contact are hollow cylinders, and the load contact is a cylinder, and the three are distributed in a wave-like manner. The three coaxially arranged cylinders can ensure the structural strength of the connection terminal and avoid damage to the connection terminal itself. In order to improve the stability of the connection and ensure the stable operation of the electric energy meter, the phase power contact and the neutral power contact of the first connection terminal 12 are chamfered at one end toward the load contact, and the load contact of the first connection terminal 12 is concave. The first connection end 42 has a conical surface, and the second connection end 42 is completely opposite. The end surfaces of the phase power contact and the neutral power contact of the second connection end 42 that are away from the load contact are provided with a chamfer with the same angle as the chamfer of the first connection end 12, but the chamfer positions of the corresponding positions of the two connection ends are opposite, so that when the two connection ends are connected, the phase power contacts and the neutral power contacts of the two will be stuck to each other, and the load contact of the second connection end 42 is protruding with a conical surface, which can clamp the second connection end 42. The above structure can be connected more stably when combined with the buffer mechanism 44 to ensure stable power transmission.

[0079] The second connection end 42 is connected to an insulating plate 43. Connecting the phase wire power contact, the neutral wire power contact, and the load contact by using the insulating plate 43 can effectively ensure the stability of the operation of the second connection end 42. Moreover, a plurality of through holes are formed in the insulating plate 43. By using the through holes, the household cable can be more simply connected to the corresponding position of the second connection end 42, ensuring that the entire electricity meter can be installed more efficiently and stably.

[0080] In the attached drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0081] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electricity meter for preventing electricity theft, characterized in that, include: An electric energy meter body, wherein one end of the electric energy meter body is provided with a first connecting portion and a first connecting end, the first connecting portion encloses a connecting cavity, the first connecting end is located in the connecting cavity, and the first connecting portion and the first connecting end are arranged on a common central axis; A mounting seat, wherein one end of the mounting seat is provided with a second connecting portion, the second connecting portion is connected to the first connecting portion, the mounting seat is provided with a second connecting end opposite to the first connecting end, the second connecting end is located in the connecting cavity and connected to the first connecting end, and the mounting seat is provided with a buffer mechanism relative to the second connecting end; A chain mechanism is provided at the first connection part and has an open end facing away from the electric energy meter body. A locking structure is provided at one end of the chain mechanism away from the open end. The locking structure is passed through the second connection part. A self-locking structure is provided between the locking structure and the chain mechanism, and the self-locking structure is connected to the open end.

2. The electric energy meter for preventing electricity theft according to claim 1, wherein The self-locking structure is provided on the inner wall of the interlocking mechanism and is arranged facing the locking structure. The locking structure is slidably connected to the self-locking structure. The self-locking structure includes a self-locking groove and an adjustment groove. The self-locking groove is connected to the adjustment groove. The self-locking groove is parallel to the bottom of the interlocking mechanism. The adjusting groove is provided with an unlocking portion relative to the open end, and the distance between the self-locking groove and the open end is greater than the distance between the unlocking portion and the open end.

3. The electric energy meter for preventing power theft according to claim 2, wherein The locking structure is provided with an avoidance groove at the bottom parallel to the interlocking mechanism, and a ball is connected between the avoidance groove and the self-locking structure; A reset structure is provided between the locking structure and the interlocking mechanism, and the locking structure moves toward the open end under the action of the reset structure.

4. The electric energy meter for preventing power theft according to claim 3, wherein The adjustment slot includes a buffer slot and an unlocking slot, one end of the buffer slot is connected to the unlocking slot, and the other end is connected to the self-locking slot, the end of the unlocking slot away from the buffer slot is connected to the self-locking slot, the distance between the buffer slot and the open end is greater than the distance between the self-locking slot and the open end, and the unlocking slot is provided with an unlocking portion; The interlocking mechanism is provided with a guide portion relative to the unlocking portion, and the guide portion is connected to one end of the unlocking portion facing the buffer groove.

5. An electric energy meter for preventing electricity theft according to claim 4, characterized in that, The outer periphery of the locking structure is provided with a limiting portion protruding toward the open end, the limiting portion is provided with a plurality of limiting holes in an array, the self-locking structure is provided with a limiting structure opposite to the limiting holes, and the interlocking mechanism is provided with a first spring opposite to the limiting structure; The limiting structure includes a limiting section and a release section. One end of the limiting section is connected to the first spring, and the other end is connected to the release section.

6. The electric energy meter for preventing power theft according to claim 5, characterized in that, The locking structure is provided with an adjustment connection portion toward the open end. The locking structure and the adjustment connection portion are arranged on the same central axis, and the adjustment connection portion is connected to the limiting hole.

7. An electric energy meter for preventing electricity theft according to claim 1, characterized in that, The mounting seat includes a base and a protective shell. The base is protruding with a partition structure. The partition structure and the base enclose a protective space. The outer periphery of the base and the partition structure are clamped to form a mounting portion. The protective shell is slidably connected to the partition structure and connected to the mounting portion. The partition structure is provided with a plurality of recesses protruding toward the protective space array, the protective shell is wrapped around the plurality of recesses, the recesses are provided with locking members toward the base, and the recesses are provided with a second spring toward the protective shell; The protective shell is provided with a guide portion facing the base, and the guide portion is connected to the base.

8. An electricity meter for preventing electricity theft according to claim 7, characterized in that, The guiding part and the protective case form a first contact surface, which is located in the connection cavity. Reinforcing fins are provided on the outer periphery of the guiding part relative to the protective case.

9. An electric energy meter for preventing electricity theft according to claim 7, characterized in that, A first guiding post is provided for the second spring in the relief groove, and a second guiding post is provided for the second spring on the protective case. The first guiding post and the second guiding post are coaxially arranged.

10. An electricity meter for preventing electricity theft according to claim 7, characterized in that, An insulating plate is provided at one end of the second connection end away from the first connection end, and a buffer mechanism is provided between the insulating plate and the base. The second connection end includes a phase wire power contact, a neutral wire power contact, and a load contact. Chamfers are provided on the phase wire power contact and the neutral wire power contact relative to the first connection end, and a conical surface is provided on the load contact relative to the first connection end. The first connection end is inserted into the second connection end, and a through hole is provided on the insulating plate relative to the second connection end, and the through hole communicates with the protection space.

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