Switching type high-bearing-capacity electric energy meter

Abstract

The invention relates to the field of electric energy meters, and discloses a switching type high-bearing electric energy meter which comprises a meter body, an end cover is detachably connected to the meter body, a threading hole for a wire to penetrate through is formed in the bottom of the end cover in a penetrating mode, and a sliding assembly extending into the threading hole is arranged on the end cover. The end cover is further provided with a limiting assembly in transmission connection with the sliding assembly. Through cooperation of the end cover, the sliding assembly, the limiting assembly, the threading holes and the like, after multiple wires needing wiring are sequentially arranged in the threading holes, the wires can make contact with the sliding assembly to enable the limiting assembly to move to press the wires based on approaching of the end cover relative to the meter body, and then synchronous rapid limiting of the multiple wires can be achieved; and meanwhile, subsequent maintenance or replacement of a single electric wire is facilitated, the wiring efficiency of a plurality of electric wires can be effectively improved, and the labor burden of workers is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and particularly relates to a switching type high-load electric energy meter. Background Art

[0002] An electric energy meter is a special instrument used to measure and record the power consumption, and is a key device for realizing power metering, charging and energy management in the power system. Most of the existing electric energy meters limit the wires through a large number of bolt structures. Such a wiring method is firstly inefficient and is not conducive to later maintenance or replacement.

[0003] For example, Chinese Patent Publication No. CN220854996U discloses an electric energy meter, which includes a first housing, a second housing, a circuit board and a wiring terminal. The first housing is fixedly installed on the second housing. The circuit board is located in the accommodation cavity formed by the first housing and the second housing, and the wiring terminal is installed on the second housing. The first housing includes a first display area, a second display area, a limiting rib, a first limiting block, a second limiting block, a first positioning hole and a second positioning hole. It is connected between the first housing, the second housing and the wiring terminal through a clever structure, so that it can be quickly disassembled and assembled during maintenance or inspection, improving the efficiency. It has the advantages of stable structure, fast disassembly and assembly, and high practicability.

[0004] This application realizes the limiting of multiple wires through a plurality of groups of bolts arranged. The wiring process is to first loosen a group of bolts, and then re-lock the loosened bolts after inserting a wire. Repeating the above process multiple times can realize the corresponding limiting of multiple wires. Its operation steps are troublesome and the working efficiency is low, and there are certain limitations in use.

[0005] Therefore, it is necessary to provide a switching type high-load electric energy meter to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a switching type high-load electric energy meter to solve the problems of troublesome operation steps and low working efficiency when wiring multiple wires through bolts as mentioned in the above background art.

[0007] To achieve the above purpose, a switching type high-load electric energy meter is designed, in which all wires are first inserted and placed, and then all wires are synchronously limited at one time, and the limiting process utilizes the wires placed in sequence.

[0008] Based on the above ideas, the present invention provides the following technical solutions: a switchable high-load electric energy meter, comprising a meter body, on which an end cover is detachably connected, a threading hole for passing the power line through the bottom of the end cover, a sliding component extending into the threading hole is provided on the end cover, and a limit component transmission-connected to the sliding component is also provided on the end cover; when the end cover is pressed toward the meter body, the wire contacts the sliding component and the limit component is driven to move by the sliding component, so that the limit component limits the wire.

[0009] As a further solution of the present invention: the sliding assembly includes a sliding rod slidably mounted on the end cover, one end of the sliding rod is located in the wire threading hole and a contact block is fixedly mounted thereon, the contact block is used to contact the wires in the wire threading hole, the other end of the sliding rod is located in the end cover and a flexible rack transmission-connected to the limiting assembly is fixedly mounted thereon, the outer surface of the sliding rod is sleeved with a first spring, the first spring makes the sliding rod tend to approach the direction of the meter body.

[0010] As a further solution of the present invention: the limiting assembly includes a rotating seat rotatably mounted on the end cover and a pressing cylinder sleeved outside the rotating seat, a gear connected to a flexible rack transmission is fixedly mounted on the outer surface of the rotating seat, an arc groove is opened on the outer surface of the rotating seat, a guide column slidably engaged in the arc groove is fixedly mounted inside the pressing cylinder, and a telescopic rod is fixedly mounted between the pressing cylinder and the inner wall of the end cover.

[0011] As a further solution of the present invention: the pressing cylinder and the threading hole are in a vertically corresponding state. When the rotating seat rotates, the pressing cylinder can be driven to move along the rotating seat and approach the meter body through the arc groove and the guide column.

[0012] As a further solution of the present invention: a cavity is provided inside the end cover, and the cavity is used to accommodate the flexible rack and the gear; when the slide bar is retracted into the end cover, the flexible rack can be driven to move along the cavity.

[0013] As a further solution of the present invention: a cross groove is provided on the surface of the rotating seat away from the pressing cylinder.

[0014] As a further solution of the present invention: a step is provided at the bottom of the meter body for assembling the end cap, and when wiring, the moving direction of the wire based on the end cap is perpendicular to the assembly direction of the end cap based on the step.

[0015] As a further solution of the present invention: a support assembly corresponding to the position of the threading hole is provided on the meter body, and a slope is provided at the bottom of the end cover; when the end cover is assembled to the meter body, the support assembly is inserted into the threading hole and is located at the bottom of the wire.

[0016] As a further solution of the present invention: The support assembly includes a support block slidably mounted on the table body. A second spring is fixedly installed between the support block and the table body. The second spring makes the support block tend to extend out of the table body. An inclined surface is provided on the side of the support block away from the second spring.

[0017] As a further solution of the present invention: The inclination direction of the inclined surface is opposite to that of the slope. When the slope contacts the support block, the support block can be pushed to contract into the table body. When the inclined surface contacts the end cover, the support block can also be driven to contract into the table body.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation between the end cover, the sliding assembly, the limiting assembly and the wire passing holes, after placing multiple wires to be wired into the wire passing holes in sequence, based on the approach of the end cover relative to the table body, the wires can contact the sliding assembly to move the limiting assembly to press the wires tightly. Thus, synchronous and rapid limiting of multiple wires can be achieved, and at the same time, it is also convenient for subsequent maintenance or replacement of individual wires, which can effectively improve the wiring efficiency of multiple wires and significantly reduce the labor burden of workers; There is no need to adopt the wiring method of tightening multiple bolts, which can effectively simplify the wiring steps of multiple wires, and the overall operation is simple and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings and embodiments: Figure 1 is a three-dimensional view of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the end cover and the wire passing holes of the present invention; Figure 3 is a schematic diagram of the structure of the pressing cylinder, the rotating seat and the arc groove of the present invention; Figure 4 is a schematic diagram of the internal structure of the end cover of the present invention; Figure 5 is Figure 4 an enlarged view of the structure at A in Figure 6 is a schematic diagram of the structure of the table body and the support assembly of the present invention; Figure 7 is a schematic diagram of the structure of the support block and the second spring of the present invention; Figure 8 is a schematic diagram of the structure of the end cover and the slope of the present invention; Figure 9 is a schematic diagram of the structure of the vertical rod and the pressing cylinder of the present invention; Figure 10 is Figure 9 an enlarged view of the structure at B in

[0020] In the figure: 1. meter body; 2. end cover; 3. sliding assembly; 4. limiting assembly; 5. supporting assembly; 101. step; 102. mounting groove; 201. threading hole; 202. cavity; 203. slope; 301. contact block; 302. flexible rack; 303. sliding rod; 304. first spring; 401. rotating seat; 402. pressing cylinder; 403. arc groove; 404. guide column; 405. gear; 406. telescopic rod; 4011. vertical rod; 4012. oblique rod; 501. support block; 502. second spring; 503. inclined plane. DETAILED DESCRIPTION

[0021] Embodiment 1: See also Figures 1 to 5 The embodiment of the present invention provides a switchable high-load electric energy meter, which is mainly used to achieve synchronous and rapid limit of all wires in view of the wiring problem of the meter body 1 when in use. It specifically includes a meter body 1, and the meter body 1 is detachably connected with an end cover 2, which is L-shaped and buckled on the meter body 1; in this embodiment, the meter body 1 adopts a switchable high-load electric energy meter, which can stably and accurately measure and manage electric energy. The meter body 1 itself and its detachable connection with the end cover 2 are both existing mature technologies and will not be described in detail here.

[0022] Furthermore, a threading hole 201 for passing the power line through is formed through the bottom of the end cap 2, and a sliding component 3 extending into the threading hole 201 is provided inside the end cap 2. The sliding component 3 can directly contact the outer surface of the wire, and a limit component 4 connected to the sliding component 3 is also provided on the front side of the end cap 2; in this embodiment, the number of threading holes 201, sliding components 3 and limit components 4 is configured as four groups. After the wires are pre-placed in the threading holes 201 in sequence, the end cap 2 is pressed toward the meter body 1, at which time the outer surface of the wire can contact the sliding component 3, thereby causing the sliding component 3 to shrink into the end cap 2, and the sliding component 3 can drive the limit component 4 to move when shrinking along the end cap 2, so that the limit component 4 presses the wire tightly.

[0023] In the above structure, a step 101 is provided at the bottom of the meter body 1 for assembling the end cap 2. When the end cap 2 is assembled on the meter body 1, the step 101 allows the end cap 2 to overlap with the meter body 1, thereby preventing the end cap 2 from protruding from the meter body 1. When wiring, the moving direction of the wire based on the end cap 2 is perpendicular to the pressing and assembling direction of the end cap 2 based on the step 101, one from bottom to top and the other from front to back.

[0024] Reference Figures 2 to 5In this embodiment, preferably: the sliding assembly 3 includes a sliding rod 303 slidably mounted on the end cover 2, one end of the sliding rod 303 is located in the threading hole 201 and fixedly mounted with a contact block 301, the contact block 301 is used to directly contact the wire in the threading hole 201, and the other end of the sliding rod 303 is located in the end cover 2 and fixedly mounted with a flexible rack 302 that is transmission-connected to the limit assembly 4. Among them, the outer surface of the sliding rod 303 is sleeved with a first spring 304, and under the action of the first spring 304, the sliding rod 303 has a tendency to approach the direction of the watch body 1.

[0025] Correspondingly, a cavity 202 is opened inside the end cover 2 for accommodating the flexible rack 302. When the end cover 2 is pressed toward the body 1, the contact block 301 contacts the wire. At this time, the slide bar 303 can shrink into the cavity 202, thereby driving the flexible rack 302 to move along the cavity 202.

[0026] Reference Figures 2 to 5 In this embodiment, preferably, the limiting assembly 4 includes a rotating seat 401 rotatably mounted on the end cover 2 and a pressing cylinder 402 sleeved outside the rotating seat 401. A gear 405 connected to the flexible rack 302 is fixedly mounted on the outer surface of the rotating seat 401; when the flexible rack 302 moves along the cavity 202, the gear 405 and the rotating seat 401 can be driven to rotate. Furthermore, an arc groove 403 is provided on the outer surface of the rotating seat 401, and a guide column 404 that is slidably engaged in the arc groove 403 is fixedly mounted inside the pressing cylinder 402. When the rotating seat 401 rotates, the pressing cylinder 402 can be driven to vertically descend through the arc groove 403 and the guide column 404.

[0027] In order to ensure the vertical descent of the pressing cylinder 402, a telescopic rod 406 can be fixedly installed between the pressing cylinder 402 and the inner wall of the end cover 2. The pressing cylinder 402 and the threading hole 201 are in a state of vertical correspondence. When the pressing cylinder 402 moves based on the rotating seat 401, the wire inserted from the threading hole 201 can be pressed tightly.

[0028] Furthermore, a cross groove is provided on the surface of the rotating seat 401 away from the pressing cylinder 402 , and the cross groove is compatible with existing tools such as screwdrivers, so as to facilitate engagement to drive the rotating seat 401 to rotate, so as to achieve corresponding adjustment of one of the pressing cylinders 402 later.

[0029] During use, first place multiple wires to be connected into the wire passing holes 201 of the end cover 2 in sequence, and make the wires extend into the meter body 1 (that is, the wires are inserted into the wire passing holes 201 and are in an up-and-down corresponding state with the pressing cylinder 402); then press the end cover 2 towards the meter body 1. The end cover 2 drives the wires to fit with the meter body 1 through the contact block 301. After the wires are fitted, they cannot move anymore, causing the contact block 301 to move based on the direction of the end cover 2. At this time, the sliding rod 303 contracts into the end cover 2 and squeezes the first spring 304. When the sliding rod 303 moves, it drives the flexible rack 302 to move synchronously. The flexible rack 302 drives the rotating seat 401 to rotate through the gear 405. The rotating seat 401 drives the pressing cylinder 402 to descend through the arc-shaped groove 403 and the guide post 404. The pressing cylinder 402 can press the wires inserted from the wire passing holes 201, and thus can synchronously limit all the wires at the same time. Finally, fix the end cover 2 on the meter body 1.

[0030] If subsequent maintenance or replacement of a single wire is required, just engage a screwdriver with the cross slot to rotate and adjust the rotating seat 401, and the corresponding lifting and lowering of the pressing cylinder 402 along the rotating seat 401 can be achieved, so as to realize the individual adjustment of a single wire.

[0031] In the above process, when the end cover 2 is detachably connected to the meter body 1 by screws, after the wires are placed in the wire passing holes 201, the screws can be directly rotated for the assembly of the end cover 2. The screws will drive the end cover 2 to automatically approach the meter body 1. At this time, the movement of the end cover 2 relative to the meter body 1 can automatically limit multiple wires, thus saving the step of pressing the end cover 2 towards the meter body 1.

[0032] In summary, through the cooperation of structures such as the end cover 2, the contact block 301, the rotating seat 401, and the pressing cylinder 402, after multiple wires to be wired are placed in the wire passing holes 201 in sequence, based on the approach of the end cover 2 relative to the meter body 1, the wires can contact the contact block 301 to move the flexible rack 302, and finally drive the pressing cylinder 402 to move to press the wires tightly. Thus, synchronous and rapid limiting of multiple wires can be achieved, and it is also convenient for subsequent maintenance or replacement of a single wire. It can effectively improve the wiring efficiency of multiple wires and significantly reduce the labor burden of workers; there is no need to adopt a wiring method of tightening multiple bolts, which can effectively simplify the wiring steps of multiple wires. The overall operation is simple and the practicability is higher.

[0033] Embodiment 2: Please refer to Figures 1 to 8 , on the basis of Embodiment 1, in order to prevent the wires from bending during wiring and affecting the conduction effect after wiring, the meter body 1 and the end cover 2 are improved: at this time, a support assembly 5 corresponding to the position of the wire passing hole 201 is arranged on the meter body 1. When the end cover 2 is assembled with the meter body 1, the support assembly 5 can be inserted into the wire passing hole 201 and provide a supporting effect for the wires.

[0034] In order to avoid affecting the assembly between the end cover 2 and the watch body 1 after the support component 5 is set, a slope 203 is provided at the bottom of the end cover 2. When the end cover 2 moves towards the watch body 1 for assembly, the slope 203 can contact the support component 5 and drive the support component 5 to retract into the watch body 1; after the slope 203 passes the support component 5, the support component 5 can automatically extend from the watch body 1 to support the wire.

[0035] Refer to Figures 6 to 8 , in this embodiment, preferably: the support component 5 includes a support block 501 slidably installed on the watch body 1. A second spring 502 is fixedly installed between the support block 501 and the watch body 1. The second spring 502 makes the support block 501 tend to extend from the watch body 1. Further, a slope 503 is provided on the side of the support block 501 away from the second spring 502. The inclination direction of the slope 503 is designed to be opposite to the inclination direction of the slope 203. When the slope 203 contacts the support block 501, the support block 501 can be pushed to contract into the watch body 1. Subsequently, when the end cover 2 is disassembled from the watch body 1, the slope 503 can contact the end cover 2 to drive the support block 501 to contract into the watch body 1 again.

[0036] Correspondingly, an installation groove 102 is provided at the bottom of the watch body 1 corresponding to the step 101. The installation groove 102 is used for installing the second spring 502 and the support block 501, and the uppermost part of the installation groove 102 is close to the step 101. The sliding direction of the support block 501 based on the installation groove 102 is parallel to the arrangement direction of the wire in the wire passing hole 201 and is in an up-and-down corresponding relationship, so as to effectively support the wire.

[0037] It can be understood that in this embodiment and in Embodiment 1, from the Figure 1 perspective, the end cover 2 can only slide back and forth based on the watch body 1 and cannot move up and down. And the up-and-down dimension of the support block 501 extending from the watch body 1 is smaller than the up-and-down dimension of the wire passing hole 201. Thus, when the end cover 2 is assembled, the slope 203 can stably contact the support block 501; that is to say, when the end cover 2 and the watch body 1 are assembled, the support block 501 is inserted into the wire passing hole 201, and the bottom of the support block 501 does not reach the same level as the bottom of the end cover 2.

[0038] When in use, through the structures such as the end cover 2, the contact block 301 and the rotating seat 401, the synchronous and rapid limiting of multiple wires can be achieved, which is also convenient for the subsequent inspection or replacement of a single wire. The working process and effect of this part are the same as those in Example 1 and will not be repeated here. The difference is that: after multiple wires are placed in sequence based on the threading hole 201, the assembly of the end cover 2 to the meter body 1 can make the slope 203 contact with the support block 501 first, and make the support block 501 shrink into the meter body 1, then the slope 203 goes over the support block 501 and continues to descend, and the support block 501 automatically extends and resets under the action of the second spring 502; then the wire contacts the meter body 1 and the support block 501 and cannot descend anymore, and the pressure cylinder 402 can be driven to descend by the contact block 301, the slide bar 303, the flexible rack 302 and the gear 405 and other structures, and the pressure cylinder 402 can effectively limit the wire after it descends, at this time, the support block 501 is located in the threading hole 201, and cooperates with the contact block 301 to limit the wire in the middle. Subsequently, when the end cover 2 is disassembled by moving forward based on the meter body 1, the inclined surface 503 can contact the end cover 2 again to make the support block 501 retract into the meter body 1, thereby not affecting the rapid disassembly of the end cover 2.

[0039] Compared with the first embodiment, through the cooperation of the support block 501, the inclined surface 503, the slope 203 and the second spring 502, the support block 501 is inserted into the threading hole 201 and cooperates with the contact block 301 to limit the wire in the middle, which can avoid the bending deformation of the end cover 2 when the wire moves and contacts the step 101, and can also avoid the deviation after contacting the step 101 to affect the wiring quality, thereby ensuring the reliable wiring quality and stable conduction effect of the wire. The overall solution is combined with the setting of the meter body 1, which will not affect the rapid disassembly and assembly between the end cover 2 and the meter body 1, and there is no need to operate the support block 501 when the end cover 2 is disassembled, which can ensure a low labor burden.

[0040] Embodiment three: See also Figures 1 to 10 On the basis of the second embodiment, in order to improve the limiting effect of the electric wire, the rotating seat 401 is improved: at this time, the rotating seat 401 includes a vertical rod 4011 rotatably mounted on the end cover 2 and an oblique rod 4012 rotatably matched with the vertical rod 4011, and the vertical rod 4011 and the oblique rod 4012 are rotatably connected through a universal shaft, and the two can form a stable transmission state; the gear 405 is fixedly mounted on the outer surface of the vertical rod 4011, the cross groove is opened on the surface of the vertical rod 4011 away from the oblique rod 4012, and the arc groove 403 is opened on the outer surface of the oblique rod 4012.

[0041] At the same time, the pressing cylinder 402 is sleeved on the outer surface of the inclined rod 4012, and the telescopic rod 406 in this embodiment is designed to be inclined. Figure 9From the perspective of , the inclination direction is downward and points to the meter body 1. The inclined design of the telescopic rod 406 enables the pressing cylinder 402 and the inclined rod 4012 to form an inclined state.

[0042] Furthermore, the bottom of the pressing cylinder 402 after inclination is horizontally designed, so that when the pressing cylinder 402 moves along the inclined telescopic rod 406, its bottom can be in contact with the wire at the same time.

[0043] During use, through structures such as the end cover 2, the contact block 301, and the rotating seat 401, synchronous and rapid limiting of multiple wires can be achieved, which is also convenient for subsequent maintenance or replacement of a single wire; through structures such as the supporting block 501, the inclined surface 503, and the second spring 502, the supporting block 501 can cooperate with the contact block 301 to limit the wire in the middle, avoiding bending deformation and offset of the wire. The working process and effect of this part are the same as those in the second embodiment and will not be repeated here. The difference is that when the wire contacts the meter body 1 and the supporting block 501 and no longer descends, the continuous descent of the end cover 2 will cause the sliding rod 303 to rise and drive the flexible rack 302 to move along the cavity 202. The flexible rack 302 drives the vertical rod 4011 to rotate through the gear 405. The vertical rod 4011 drives the inclined rod 4012 to rotate through the universal joint. The inclined rod 4012 drives the pressing cylinder 402 to move obliquely based on the telescopic rod 406 through the arc-shaped groove 403 and the guide post 404. At this time, the pressing cylinder 402 not only has the function of pressing the wire, but also has an inclined driving force, which can push the wire to have a tendency to move into the meter body 1.

[0044] Compared with the second embodiment, through the cooperation of structures such as the vertical rod 4011, the inclined rod 4012, the universal joint, and the telescopic rod 406, when the pressing cylinder 402 moves, it can not only press the wire, but also push the wire into the meter body 1, which can improve the limiting effect on the wire, avoid the wire falling off from the meter body 1, and ensure a long-term and stable conduction effect. The overall solution is combined with the setting of the rotating seat 401. The operation method of limiting and releasing the limit of the wire remains unchanged, but the limiting effect on the wire is better, and it will not affect the quick disassembly and assembly between the end cover 2 and the meter body 1.

Claims

1. A switching type high-load electric energy meter, comprising a meter body (1), and an end cover (2) is detachably connected to the meter body (1), characterized in that, A wire passing hole (201) for the power wire to pass through is formed through the bottom of the end cover (2). A sliding component (3) extending into the wire passing hole (201) is arranged on the end cover (2), and a limiting component (4) drivingly connected to the sliding component (3) is further arranged on the end cover (2). When the end cover (2) is pressed towards the watch body (1), the wire contacts the sliding component (3) and drives the limiting component (4) to move through the sliding component (3), so that the limiting component (4) limits the wire.

2. The switching high-load electric energy meter according to claim 1, characterized in that The sliding component (3) includes a sliding rod (303) slidably mounted on the end cover (2). One end of the sliding rod (303) is located in the wire passing hole (201) and is fixedly provided with a contact block (301) for contacting the wire in the wire passing hole (201). The other end of the sliding rod (303) is located in the end cover (2) and is fixedly provided with a flexible rack (302) drivingly connected to the limiting component (4). A first spring (304) is sleeved on the outer surface of the sliding rod (303), and the first spring (304) makes the sliding rod (303) tend to move closer to the watch body (1).

3. The switching high-load electric energy meter according to claim 2, characterized in that, The limiting component (4) includes a rotating seat (401) rotatably mounted on the end cover (2) and a pressing cylinder (402) sleeved outside the rotating seat (401). A gear (405) drivingly connected to the flexible rack (302) is fixedly mounted on the outer surface of the rotating seat (401). An arc-shaped groove (403) is formed on the outer surface of the rotating seat (401). A guide post (404) slidably engaged in the arc-shaped groove (403) is fixedly mounted inside the pressing cylinder (402). A telescopic rod (406) is fixedly mounted between the pressing cylinder (402) and the inner wall of the end cover (2).

4. The switched high-load electric energy meter according to claim 3, wherein The pressing cylinder (402) and the wire passing hole (201) are in a vertically corresponding state. When the rotating seat (401) rotates, the pressing cylinder (402) can be driven to move along the rotating seat (401) and approach the watch body (1) through the arc-shaped groove (403) and the guide post (404).

5. The switching type high-load electric energy meter according to claim 3, characterized in that, A cavity (202) is formed inside the end cover (2) for accommodating the flexible rack (302) and the gear (405). When the sliding rod (303) contracts into the end cover (2), the flexible rack (302) can be driven to move along the cavity (202).

6. The switching high-load electric energy meter according to claim 3, characterized in that, A cross groove is formed on the surface of the rotating seat (401) away from the pressing cylinder (402).

7. The switching high-load electricity meter according to claim 3, characterized in that, A step (101) for assembling the end cover (2) is formed at the bottom of the watch body (1). When wiring, the moving direction of the wire based on the end cover (2) is perpendicular to the assembling direction of the end cover (2) based on the step (101).

8. The switching type high-load electric energy meter according to any one of claims 3-7, characterized in that, A supporting component (5) corresponding to the position of the wire passing hole (201) is arranged on the watch body (1). A slope (203) is formed at the bottom of the end cover (2). After the end cover (2) is assembled onto the watch body (1), the supporting component (5) is inserted into the wire passing hole (201) and is located at the bottom of the wire.

9. The switching type high-load electric energy meter according to claim 8, characterized in that, The support component (5) includes a support block (501) slidably mounted on the table body (1). A second spring (502) is fixedly installed between the support block (501) and the table body (1). The second spring (502) causes the support block (501) to tend to protrude from the table body (1). An inclined surface (503) is formed on the side of the support block (501) away from the second spring (502).

10. The switched high-load electric energy meter according to claim 9, wherein, The inclination direction of the inclined surface (503) is designed to be opposite to the inclination direction of the slope (203). When the slope (203) contacts the support block (501), it can push the support block (501) to contract into the table body (1). When the inclined surface (503) contacts the end cover (2), it can also drive the support block (501) to contract into the table body (1).

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