Intelligent electric energy meter capable of preventing cable from being dragged

Abstract

An intelligent electric energy meter capable of preventing a cable from being dragged comprises an electric energy meter assembly, an anti-dragging assembly and a protection assembly, and the electric energy meter assembly is composed of an electric energy meter body; the anti-dragging assembly is fixedly mounted on the electric energy meter main body at the notch, and a return mechanism is arranged in the anti-dragging assembly; the protection assembly is fixedly connected with the electric energy meter body, and a contact mechanism is movably connected in the protection assembly. According to the electric energy meter assembly, the anti-dragging assembly and the protection assembly are installed in the electric energy meter assembly to achieve cable protection, cable protection can be achieved when a dragging problem occurs, pulling force borne by the cable is prevented from directly acting on the joint position, it is ensured that the connecting position cannot be loosened, the anti-dragging function can be improved through the resettable anti-dragging assembly, and meanwhile the anti-dragging effect is improved. And by arranging the protection assembly, the tensile performance of the cable can be further improved, the connection position of the cable is prevented from loosening, the anti-dragging performance of the cable is improved, and normal use of the intelligent electric energy meter is ensured.

Description

Technical Field

[0001] This invention relates to a smart energy meter that prevents cable dragging, belonging to the field of smart energy meter technology. Background Technology

[0002] A smart meter is an energy metering device with multiple advanced functions. In addition to accurately measuring electrical energy, a smart meter is an electronic energy meter that also has functions such as data storage, information transmission, remote power outage and restoration, and anomaly alarms. It consists of a measurement unit, a data processing unit, and a communication unit, enabling it to perform functions such as energy measurement, data processing, real-time monitoring, automatic control, and information interaction. Smart meters can be divided into single-phase meters and three-phase meters according to user type. Single-phase meters are suitable for ordinary users, such as households and small shops, and are used to measure 220V electricity consumption; three-phase meters are suitable for large enterprises and factories, and are used to measure 380V electricity consumption. Furthermore, based on the payment method, smart meters can also be divided into local meters and remote meters. Local meters are installed at the user's location and can be paid using an IC card; while remote meters are not installed at the user's location, and the user needs to go to the power supply bureau to pay.

[0003] As an advanced energy metering device, smart meters have significant advantages in energy metering, data storage and transmission, remote power outage and restoration, and anomaly alarms. However, their disadvantages, such as high installation costs, technological maturity issues, and safety and health concerns, also need to be addressed. With continuous technological advancements and the expansion of application scenarios, smart meters will play an even more important role in the future.

[0004] During maintenance or installation, the cables connected to smart meters may be dragged, which may cause the cable connections to loosen. Under strong dragging force, the cable joints may even come off. In addition, the cables inside the meter box are quite complex, and the presence of many long cables together affects maintenance and the overall appearance. After being dragged, it is not easy to restrain the cables again, requiring a complicated process to reposition them after each drag, which affects the convenience of operation.

[0005] For example, Chinese patent document CN210071909U discloses a multifunctional smart meter, including a base plate, a limiting frame, a limiting rod, a locking plate, slots, etc. The limiting frame and the slots on the locking plate engage the plug rod, thereby fixing the meter body. When disassembly is needed, the plug rod can be pulled out. Even if the cable is accidentally stretched, it will not easily loosen, improving the tightness of the cable connection. However, this solution mainly serves a limiting function; its anti-drag function is not very strong, and its anti-loosening effect is not significant.

[0006] However, there is an urgent need in the existing technology for a smart energy meter solution that can effectively prevent blue line dragging. Summary of the Invention

[0007] In view of the technical problems existing in the prior art, the present invention aims to provide a smart energy meter that prevents cable dragging, which can solve the technical problem that the cable of a smart energy meter is prone to loosening due to dragging.

[0008] Specifically, the present invention solves the above-mentioned technical problems through the following technical solutions: According to one aspect of the present invention, a smart energy meter resistant to cable dragging is provided, the smart energy meter resistant to cable dragging includes: An electricity meter assembly, which is composed of an electricity meter body. A slot for installing a transparent cover is provided on one side of the electricity meter body, and a cable is fixedly connected to the side wall of the electricity meter body located at the slot. An anti-drag component is fixedly installed on the main body of the energy meter at the slot, and the cable is wrapped around the surface of the anti-drag component. The anti-drag component is provided with a return mechanism inside and a limiting mechanism at the top of the anti-drag component for positioning the cable. The protection component is disposed on one side of the anti-drag component and fixedly connected to the main body of the electricity meter. The protection component is located below the cable and has a contact mechanism movably connected inside. Two limiting blocks located on both sides of the protection component are fixedly connected to the surface of the cable. The two limiting blocks are connected by an elastic strip, and the elastic strip is attached to the surface of the cable and located inside the top of the protection component.

[0009] Preferably, a transparent cover is fitted onto one side of the main body of the electricity meter. The side wall and bottom edge of the transparent cover are closely connected to the main body of the electricity meter. A wiring port is fixedly connected to the side wall of the main body of the electricity meter. The wiring port is located on the side of the cable. The edge of the main body of the electricity meter is provided with a rib, and the transparent cover is in contact with the surface of the rib. A protrusion corresponding to the cable is fixedly connected to one side of the rib, and the transparent cover has an opening located at the position of the protrusion. When the transparent cover is closed, the cable is located above the protrusion and inside the opening.

[0010] Preferably, the anti-drag assembly consists of a first mounting plate, a cover plate, and a winding post. The surface of the first mounting plate is attached to the cover plate. The cover plate has a circular structure and corresponding mounting holes are provided on the edges of the first mounting plate. The cover plate and the first mounting plate are fixedly connected to the main body of the electricity meter by screws. The bottom of the winding post is rotatably connected to the inside of the cover plate.

[0011] Preferably, a slot is provided at the center of the top of the winding post, and the edges of the winding post on both sides of the slot are rounded to avoid damage to the cable surface. The cable is fitted inside the slot and extends to the outside of the slot in a spiral shape on the surface of the winding post.

[0012] Preferably, the recovery mechanism consists of a fixed column and a coil spring, both of which are located inside the bottom end of the winding column. The fixed column is fixedly connected to the middle of the mounting plate, and the fixed column is fixedly connected to the inner end of the coil spring. The outer end of the coil spring is fixedly connected to the inner wall of the bottom end of the winding column. A connecting column is fixedly connected to the bottom of the winding column, and the connecting column is rotatably connected to the inside of the fixed column.

[0013] Preferably, the limiting mechanism consists of an insert block and a screw cap. A rotating shaft is fixedly connected inside the screw cap, and the rotating shaft is rotatably connected to the inside of the insert block. The screw cap is threaded to the external thread on the surface of the winding post. A square slot is provided at the top of the winding post. The slot is located on both sides of the slot, and the insert block is fitted into the slot. A space for placing the cable is formed between the bottom surface of the insert block and the bottom surface of the slot.

[0014] Preferably, the protection component consists of a second mounting plate and mounting posts. The edge of the second mounting plate is fixedly connected to the main body of the electricity meter by screws. Mounting posts are fixedly connected to both sides of the top surface of the second mounting plate. The mounting posts are square structures and have a contact mechanism inside. The contact mechanism is located inside the mounting post on the side closer to the anti-drag component.

[0015] Preferably, the contact mechanism consists of a square rod and a push block. The square rod is movably inserted into the interior of the mounting column. The bottom end of the square rod is connected to the interior of the mounting column via a first spring. The top of the mounting column has a groove for placing the push block and the cable. The top end of the square rod extends into the groove and is fixedly connected to the push block, and the top surface of the push block contacts the cable.

[0016] Preferably, the sidewall of the mounting column fits into the circular limiting block, the width of the groove is greater than the outer diameter of the cable and less than the diameter of the limiting block, the push block is located on one side of one of the limiting blocks, and the bottom adjacent ends of the push block and the limiting block are both provided with inclined surfaces.

[0017] Preferably, both the mounting column and the square rod have interconnected insertion holes inside, which are fitted and inserted into the insertion holes. One end of the insertion rod is fixedly connected to a U-shaped connecting block, and the cable is located inside the top of the connecting block. The connecting block contacts the outer side of the limiting block, and the side wall of the connecting block is connected to the side wall of the mounting column through a second spring.

[0018] According to the present invention, at least the following beneficial effects are achieved: According to the present invention, the smart energy meter with cable drag protection features an anti-drag component and a protective component installed within the energy meter assembly to protect the cable. This protects the cable in the event of dragging, preventing the tension on the cable from directly acting on the joint, ensuring that the connection does not loosen. The resettable anti-drag component improves the anti-pull function and also serves to reel in the cable, ensuring neat cable organization within the meter box for easy maintenance and installation. The elasticity of the return mechanism enables automatic winding and storage, facilitating cable management. The protective component further enhances the cable's tensile strength, preventing loosening of the cable connection due to tension, thus improving the cable's anti-drag performance and ensuring the normal operation of the smart energy meter. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a smart energy meter that prevents cable dragging according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the main body of a smart energy meter that is designed to prevent cable dragging, according to an embodiment of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the anti-drag component of a smart energy meter that prevents cable dragging according to an embodiment of the present invention.

[0022] Figure 4 To show Figure 3 Schematic diagram of half-section structure.

[0023] Figure 5 This is a schematic diagram of the external front view of a smart energy meter that prevents cable dragging according to an embodiment of the present invention.

[0024] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0025] Figure 7 This is a partial structural diagram of the protection component of a smart energy meter that prevents cable dragging according to an embodiment of the present invention.

[0026] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the middle.

[0027] Figure 9 This is a partial structural diagram of the anti-drag component of a smart energy meter that prevents cable dragging according to an embodiment of the present invention.

[0028] Figure 10This is a front view of the internal structure of the anti-drag component of a smart energy meter that prevents cable dragging according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures 100. Electricity meter assembly; 101. Electricity meter body; 102. Rib; 103. Transparent cover; 104. Protrusion; 105. Wiring port; 106. Cable; 107. Limiting block; 108. Elastic strip; 200. Anti-drag component; 201. First mounting plate; 202. Cover plate; 203. Winding post; 204. Fixing post; 205. Coil spring; 206. Connecting post; 207. Slot; 208. Slot; 209. Insert block; 210. Rotating shaft; 211. Screw cap; 300. Protective component; 301. Second mounting plate; 302. Mounting post; 303. First spring; 304. Square rod; 305. Push block; 306. Insert rod; 307. Second spring; 308. Connecting block; 309. Inclined surface. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will understand that this description is exemplary and does not limit the present invention to the scope of the described embodiments.

[0031] like Figure 1-6 As shown, in a specific embodiment of the present invention, the smart energy meter with anti-cable dragging capability includes: an energy meter assembly 100, which is composed of an energy meter body 101. The energy meter body 101 has a slot on one side for installing a transparent cover 103, and a cable 106 is fixedly connected to the side wall of the energy meter body 101 at the slot; and an anti-drag component 200, which is fixedly installed on the energy meter body 101 at the slot, with the cable 106 wound around the surface of the anti-drag component 200. The anti-drag component 200 has a recovery mechanism inside, and the cable 106 is wound around the surface of the anti-drag component 200. The top of the dragging component 200 is provided with a limiting mechanism for positioning the cable 106; the protection component 300 is correspondingly disposed on one side of the anti-drag component 200 and fixedly connected to the main body 101 of the energy meter. The protection component 300 is located below the cable 106, and a contact mechanism is movably connected inside the protection component 300. Two limiting blocks 107 located on both sides of the protection component 300 are fixedly connected to the surface of the cable 106. The two limiting blocks 107 are connected by an elastic strip 108, and the elastic strip 108 is attached to the surface of the cable 106 and located inside the top of the protection component 300.

[0032] A transparent cover 103 is fitted onto one side of the main body 101 of the electricity meter. The side wall and bottom edge of the transparent cover 103 are closely connected to the main body 101 of the electricity meter. A wiring port 105 is fixedly connected to the side wall of the main body 101 of the electricity meter. The wiring port 105 is located on the side of the cable 106. The edge of the main body 101 of the electricity meter is provided with a rib 102, and the transparent cover 103 is in contact with the surface of the rib 102. A protrusion 104 corresponding to the cable 106 is fixedly connected to one side of the rib 102, and the transparent cover 103 has an opening located at the position of the protrusion 104. When the transparent cover 103 is closed, the cable 106 is located above the protrusion 104 and inside the opening.

[0033] The transparent cover 103 is installed on the main body 101 of the electricity meter for protection and to facilitate observation of the wiring. The buckle on the transparent cover 103 is connected to the main body 101 of the electricity meter for fixation. The opening on the transparent cover 103 is fitted into the surface of the protrusion 104 to press and limit the cable 106. The rib 102 is set to match the transparent cover 103 to achieve positioning and installation and ensure sealing performance to prevent dust from entering.

[0034] The anti-drag component 200 consists of a first mounting plate 201, a cover plate 202, and a winding post 203. The surface of the first mounting plate 201 is fitted and connected to the cover plate 202. The cover plate 202 has a circular structure and corresponding mounting holes are provided on the edges of the first mounting plate 201. The cover plate 202 and the first mounting plate 201 are both fixedly connected to the main body 101 of the energy meter by screws. The bottom of the winding post 203 is rotatably connected to the inside of the cover plate 202. A slot 207 is provided at the center of the top of the winding post 203, and the edges of the winding post 203 on both sides of the slot 207 are rounded to avoid damage to the surface of the cable 106. The cable 106 is fitted inside the slot 207 and extends to the outside of the slot 207 in a spiral shape on the surface of the winding post 203. The return mechanism consists of a fixed post 204 and a coil spring 205. Both the fixed post 204 and the coil spring 205 are located inside the bottom end of the winding post 203. The fixed post 204 is fixedly connected to the middle of the mounting plate and the inner end of the coil spring 205. The outer end of the coil spring 205 is fixedly connected to the inner wall of the bottom end of the winding post 203. A connecting post 206 is fixedly connected to the bottom of the winding post 203 and is rotatably connected to the fixed post 204.

[0035] After the cover plate 202 is placed on the surface of the winding post 203, the first mounting plate 201 and the cover plate 202 are spliced ​​together to limit the winding post 203. At this time, the cover plate 202 and the first mounting plate 201 are fixed on the main body 101 of the energy meter by screws. At this time, the winding post 203 can realize the rotation function, and the cable 106 is stuck in the slot 207. When the winding post 203 rotates, both ends of the cable 106 are simultaneously wound around the surface of the winding post 203 for storage. The cable 106 will not be damaged when it is wound.

[0036] Specifically, when the winding post 203 rotates, the coil spring 205 is in a tensioned state. After the cable 106 is inserted into the slot 207, the coil spring 205 restores its elasticity, causing the winding post 203 to rotate. This, in conjunction with the fixing post 204 and the connecting post 206, achieves stable rotation of the winding post 203, thereby enabling the cable 106 to be wound. When the cable 106 is pulled, the tension of the cable 106 overcomes the elasticity of the coil spring 205, causing the winding post 203 to rotate in the opposite direction. When the cable 106 inside and outside the slot 207 tends to be horizontal, the winding post 203 no longer generates torque to prevent the cable 106 from winding. This solution can solve the problem of electromagnetic induction caused by excessive and tight turns of the cable 106. It improves the anti-drag function of the cable 106 and facilitates the winding and straightening of the cable 106. When the drag force is too large, the protective component 300 further protects the cable 106.

[0037] The limiting mechanism consists of a plug 209 and a cap 211. A rotating shaft 210 is fixedly connected inside the cap 211, and the rotating shaft 210 is rotatably connected to the plug 209. The cap 211 is threaded to the external thread on the surface of the winding post 203. A square slot 208 is provided at the top of the winding post 203. The slot 208 is located on both sides of the slot 207, and the plug 209 is fitted into the slot 208. A space for placing the cable 106 is formed between the bottom surface of the plug 209 and the bottom surface of the slot 207.

[0038] Before winding the cable 106, a certain length of the cable 106 is reserved between the anti-drag component 200 and the protection component 300. The cable 106 is placed inside the slot 207, and then the plug 209 is inserted into the slot 208 to limit the cable 106. At this time, the cap 211 is placed on top of the winding post 203, and the two are fixed by threaded connection. At this time, the rotating shaft 210 rotates inside the plug 209 to tighten the cap 211, thereby limiting the cable 106 and preventing it from coming off during winding.

[0039] like Figure 7 , 8As shown, the protection component 300 consists of a second mounting plate 301 and mounting posts 302. The edge of the second mounting plate 301 is fixedly connected to the main body 101 of the electricity meter by screws. Mounting posts 302 are fixedly connected to both sides of the top surface of the second mounting plate 301. The mounting posts 302 are square structures and have a contact mechanism inside. The contact mechanism is located inside the mounting post 302 on the side near the anti-drag component 200. The contact mechanism consists of a square rod 304 and a push block 305. The square rod 304 is movably inserted into the inside of the mounting post 302. The bottom end of the square rod 304 is connected to the inside of the mounting post 302 by a first spring 303. The top of the mounting post 302 has a groove for placing the push block 305 and the cable 106. The top end of the square rod 304 extends into the groove and connects with the push block 305. The mounting post 302 is fixedly connected to the cable 106, with the top surface of the push block 305 in contact with the cable 106. The side wall of the mounting post 302 fits against the circular limiting block 107. The width of the groove is greater than the outer diameter of the cable 106 and less than the diameter of the limiting block 107. The push block 305 is located on one side of one of the limiting blocks 107, and the bottom adjacent ends of the push block 305 and the limiting block 107 are both provided with inclined surfaces 309. The mounting post 302 and the square rod 304 are both provided with interconnected insertion holes. The insertion holes are fitted and inserted into the insertion rod 306. One end of the insertion rod 306 is fixedly connected to a U-shaped connecting block 308, and the cable 106 is located inside the top of the connecting block 308. The connecting block 308 contacts the outer side of the limiting block 107, and the side wall of the connecting block 308 is connected to the side wall of the mounting post 302 through a second spring 307.

[0040] like Figure 9 , 10 As shown, when the anti-drag component 200 loses its force due to dragging force, the protection component 300 further provides protection. The protection component 300 is fixed to the main body 101 of the energy meter by screws on the second mounting plate 301. Two limit blocks 107 are fixed in advance at appropriate positions on the cable 106 and connected by the elastic strip 108. Before installation, the insertion rod 306 is located to the left of the square rod 304. Press the push block 305 down to move it into the mounting post 302 and drive the square rod 304 to move down. When the insertion hole on the square rod 304 corresponds to the insertion rod 306, the second spring 307 drives the insertion rod 306 to move and insert into the insertion rod 306. At this time, the square rod 304 is restricted from moving up and the first spring 303 is in a compressed state.

[0041] When the cable 106 is installed, the elastic strip 108 is stretched to be in a taut state and placed inside the top of the two mounting posts 302. At this time, the cable 106 between the limiting blocks 107 is still in a slack state, and the elasticity of the elastic strip 108 acts on the two limiting blocks 107, so that the cable 106 will not be subjected to traction for a long time. Push the connecting block 308 to one side to leave a space between it and the mounting post 302 for the installation of the limiting block 107, so as to facilitate the placement of the cable 106 and make it fit against the surface of the push block 305. When the connecting block 308 drives the insertion rod 306 to move, the insertion rod 306 will not separate from the square rod 304, and the push block 305 is still in a restricted state.

[0042] When the cable 106 is subjected to a dragging force, causing the limiting block 107 to move, the limiting block 107 abuts against the connecting block 308 and pulls the insertion rod 306 to move synchronously. At this time, the elastic strip 108, which is in a taut state, continues to stretch. When the dragging force is too great and there is a certain distance between the limiting block 107 and the mounting post 302, the insertion rod 306 separates from the square rod 304. The first spring 303, which is in a compressed state, pushes the square rod 304 and the push block 305 upward. The push block 305 pushes the cable 106 out of the mounting post 302. The limiting block 107 is moved above the mounting post 302. When the drag force disappears, the elastic strip 108 in the stretched state returns to its original state, which will drive the two limiting blocks 107 to move closer together. The limiting block 107 and the inclined surface 309 at the push block 305 come into contact with each other and separate them, so that one of the limiting blocks 107 moves between the two mounting posts 302. The other limiting block 107 is always in contact with the side wall of the mounting post 302. This is used to solve the problem that the cable 106 may be worn when the drag direction is inconsistent.

[0043] For example, when the cable 106 is dragged at an inclined angle so that the limiting block 107 is at a sufficient distance from the mounting post 302, the dragging force will cause the cable 106 to rub against the surface of the mounting post 302. In particular, if the dragging force suddenly disappears, the cable 106 and the elastic strip 108 will move rapidly inside the mounting post 302. Since the angle of the cable 106 being pulled is inconsistent with the position of the cable 106, the wear on the surface of the cable 106 may be aggravated. However, with the technical solution of this application, when the dragging force is inclined, the push block 305 will push the cable 106 and the elastic strip 108 to separate directly from the mounting post 302. At this time, the dragging force of the elastic strip 108 coincides with the position of the elastic strip 108, and there is sufficient buffer space when resetting to avoid the cable 106 hitting the mounting post 302 and causing damage. Moreover, during the entire protection process, the connection position between the cable 106 and the main body 101 of the energy meter will not be subjected to dragging force, ensuring that the connection position will not loosen or fall off.

[0044] In summary, the present invention has been described in detail through specific embodiments. However, the present invention is not limited to the above embodiments. Those skilled in the art will understand that various changes or modifications can be made to these embodiments. Without departing from the principles and essence of the present invention, all such changes and modifications should fall within the protection scope of the present invention, which is defined by the appended claims.

Claims

1. A smart energy meter designed to prevent cable dragging, characterized in that, The smart energy meter that prevents cable dragging includes: An electricity meter assembly (100) is composed of an electricity meter body (101). The electricity meter body (101) has a slot on one side for installing a transparent cover (103). A cable (106) is fixedly connected to the side wall of the electricity meter body (101) located at the slot. An anti-drag component (200) is fixedly installed on the main body (101) of the energy meter at the slot, and the cable (106) is wrapped around the surface of the anti-drag component (200). The anti-drag component (200) is provided with a return mechanism inside, and a limiting mechanism is provided at the top of the anti-drag component (200) for positioning the cable (106). The protection component (300) is disposed on one side of the anti-drag component (200) and fixedly connected to the main body (101) of the electricity meter. The protection component (300) is located below the cable (106) and a contact mechanism is movably connected inside the protection component (300). Two limiting blocks (107) located on both sides of the protection component (300) are fixedly connected to the surface of the cable (106). The two limiting blocks (107) are connected by an elastic strip (108), and the elastic strip (108) is attached to the surface of the cable (106) and located inside the top of the protection component (300).

2. The smart energy meter for preventing cable dragging as described in claim 1, characterized in that: A transparent cover (103) is fitted into one side of the main body (101) of the electricity meter. The side wall and bottom edge of the transparent cover (103) are attached to the main body (101) of the electricity meter. A wiring port (105) is fixedly connected to the side wall of the main body (101). The wiring port (105) is located on the side of the cable (106). The edge of the main body (101) of the electricity meter is provided with a rib (102), and the transparent cover (103) is attached to the surface of the rib (102). A protrusion (104) corresponding to the cable (106) is fixedly connected to one side of the rib (102), and the transparent cover (103) has an opening located at the position of the protrusion (104). When the transparent cover (103) is closed, the cable (106) is located above the protrusion (104) and inside the opening.

3. The smart energy meter for preventing cable dragging as described in claim 1, characterized in that: The anti-drag component (200) consists of a first mounting plate (201), a cover plate (202), and a winding post (203). The surface of the first mounting plate (201) is attached to the cover plate (202). The cover plate (202) has a circular structure and corresponding mounting holes are provided on the edges of the first mounting plate (201). The cover plate (202) and the first mounting plate (201) are fixedly connected to the main body (101) of the energy meter by screws. The bottom of the winding post (203) is rotatably connected to the inside of the cover plate (202).

4. The smart energy meter for preventing cable dragging as described in claim 3, characterized in that: The top center of the winding post (203) is provided with a slot (207). The edges of the winding post (203) on both sides of the slot (207) are rounded to avoid damage to the surface of the cable (106). The cable (106) is fitted inside the slot (207) and extends to the outside of the slot (207) and is located on the surface of the winding post (203) in a spiral shape.

5. The smart energy meter for preventing cable dragging as described in claim 1, characterized in that: The recovery mechanism consists of a fixed column (204) and a coil spring (205). Both the fixed column (204) and the coil spring (205) are located inside the bottom end of the winding column (203). The fixed column (204) is fixedly connected to the middle of the mounting plate. The fixed column (204) is fixedly connected to the inner end of the coil spring (205), and the outer end of the coil spring (205) is fixedly connected to the inner wall of the bottom end of the winding column (203). A connecting column (206) is fixedly connected to the bottom of the winding column (203), and the connecting column (206) is rotatably connected to the inside of the fixed column (204).

6. The smart energy meter for preventing cable dragging as described in claim 1, characterized in that: The limiting mechanism consists of a plug (209) and a cap (211). A rotating shaft (210) is fixedly connected inside the cap (211), and the rotating shaft (210) is rotatably connected to the plug (209). The cap (211) is threaded to the external thread on the surface of the winding post (203). A square slot (208) is provided at the top of the winding post (203). The slot (208) is located on both sides of the slot (207), and the plug (209) is fitted into the slot (208). A space for placing the cable (106) is formed between the bottom surface of the plug (209) and the bottom surface of the slot (207).

7. The smart energy meter for preventing cable dragging as described in claim 1, characterized in that: The protection component (300) consists of a second mounting plate (301) and mounting posts (302). The edge of the second mounting plate (301) is fixedly connected to the main body (101) of the electricity meter by screws. Mounting posts (302) are fixedly connected to both sides of the top surface of the second mounting plate (301). The mounting posts (302) are square structures and have a contact mechanism inside. The contact mechanism is located inside the mounting post (302) on the side close to the anti-drag component (200).

8. The smart energy meter for preventing cable dragging as described in claim 7, characterized in that: The contact mechanism consists of a square rod (304) and a push block (305). The square rod (304) is movably inserted into the mounting post (302). The bottom end of the square rod (304) is connected to the inside of the mounting post (302) through a first spring (303). The top of the mounting post (302) is provided with a groove for placing the push block (305) and the cable (106). The top end of the square rod (304) extends into the groove and is fixedly connected to the push block (305). The top surface of the push block (305) contacts the cable (106).

9. The smart energy meter for preventing cable dragging as described in claim 8, characterized in that: The side wall of the mounting post (302) fits against the circular limiting block (107). The width of the groove is greater than the outer diameter of the cable (106) and less than the diameter of the limiting block (107). The push block (305) is located on one side of one of the limiting blocks (107), and the bottom adjacent ends of the push block (305) and the limiting block (107) are both provided with inclined surfaces (309).

10. The smart energy meter for preventing cable dragging as described in claim 8, characterized in that: The mounting post (302) and the square rod (304) are both provided with interconnected insertion holes. The insertion holes are fitted and inserted into the rod (306). One end of the rod (306) is fixedly connected to a U-shaped connecting block (308), and the cable (106) is located inside the top of the connecting block (308). The connecting block (308) is in contact with the outer side of the limiting block (107). The side wall of the connecting block (308) is connected to the side wall of the mounting post (302) through a second spring (307).

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