Digital electric energy meter calibration device with buckle structure

Abstract

The utility model relates to the technical field of electric energy meter calibration, in particular to a digital electric energy meter calibration device with a buckle structure, which is matched with an electric energy meter for use and comprises a calibration device main body, a first clamping groove is arranged on the inner wall of the electric energy meter, a calibration part is arranged at the lower part of the calibration device main body, and clamping hooks are respectively arranged on two sides of the calibration part; after the verification device body and the electric energy meter are clamped in the first clamping groove through the clamping hook, the verification part makes contact with the wiring terminal, and the verification device body and the electric energy meter are not prone to relative position movement. According to the utility model, the wireless stable connection between the wireless electric energy meter connector and the electric energy meter is realized, the wireless connection mode simplifies the field operation, reduces the risks of wiring errors and electric sparks, reduces the labor intensity, improves the working efficiency, and obviously enhances the operation safety. Moreover, the electric energy meter calibration device is also provided with a transmission mechanism and a limiting structure, thereby further ensuring the stability and accuracy in the calibration process, and providing a reliable guarantee for the precise calibration of the electric energy meter.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meter calibration, and particularly refers to a digital electric energy meter calibration device with a buckle structure. Background Technique

[0002] With the rapid development and wide application of smart grid technology, electric energy, as the core output product of the power system, its accurate measurement has become a key link to ensure fair transactions between power suppliers and users. The electric energy meter, as the core tool for electric energy measurement, is not only the legal basis for trade settlement between power suppliers and users, but also its measurement accuracy is directly related to the economic interests and social benefits of both parties. Therefore, in strict accordance with the requirements of the "DL / T 448-2016 Technical Management Regulations for Electric Energy Measurement Devices", it is particularly important to conduct regular and efficient on-site inspections of electric energy meters of various grades.

[0003] When the electric energy meter is inspected on-site, it is necessary to connect the electric energy meter and the on-site calibration device with cables. The traditional wiring method is to use a screwdriver to loosen the screws of the terminals in the wiring terminal box of the electric energy meter, connect the cables used for calibration in sequence, and then tighten them, or directly clamp the cables on the wiring terminals of the electric energy meter with alligator clips. However, this wiring method often has problems such as unreliable contact with the wiring terminals and the alligator clips jumping off, resulting in disconnection and stopping the inspection. The labor intensity is high and the work efficiency is low; when using this wiring method during on-site live operation, not only is the wiring cumbersome and easy to connect wrongly, but also there are often electric sparking phenomena, which pose safety hazards and are prone to accidents due to improper operation, increasing safety hazards.

[0004] That is, there are problems in the prior art that the steps of wiring the calibration device and the wiring terminals in the wiring terminal box are complicated and prone to loosening. The present application provides a digital electric energy meter calibration device with a hook structure, and the hook structure can achieve quick and reliable clamping and disassembly. Summary of the Utility Model

[0005] The invention object of the utility model is: to solve the problems existing in the prior art, a digital electric energy meter calibration device with a buckle structure.

[0006] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0007] A digital electric energy meter calibration device with a buckle structure is used in cooperation with an electric energy meter. The digital electric energy meter calibration device with a buckle structure includes a calibration device main body. The electric energy meter includes wiring terminals and two first slots, and the first slots are arranged on the inner wall of the electric energy meter. A calibration part is arranged at the lower part of the calibration device main body, and hooks are respectively arranged on both sides of the calibration part.

[0008] After the main body of the calibration device and the electricity meter are clamped in the first card slot through the hook, the calibration part is in contact with the wiring terminal.

[0009] As an improvement of the technical solution of the digital electricity meter calibration device with a snap structure of the present utility model, a hook body is arranged on the outer side of the lower part of the hook, and the hook body is an inclined surface protrusion.

[0010] As an improvement of the technical solution of the digital electricity meter calibration device with a snap structure of the present utility model, the digital electricity meter calibration device with a snap structure further includes a transmission mechanism.

[0011] The transmission mechanism includes a button and a pull rope; a pull rope hole is arranged in the upper part of the hook, and both ends of the pull rope are fixedly connected with the hook through the pull rope hole.

[0012] The button is arranged on the front of the main body of the calibration device, and the pull rope is horizontally arranged inside the main body of the calibration device, and the pull rope passes through the button.

[0013] When the button is pressed, both ends of the pull rope move inwards, and the hook is driven to rotate inwards through the pull rope.

[0014] As an improvement of the technical solution of the digital electricity meter calibration device with a snap structure of the present utility model, the transmission mechanism further includes a first spring and a second spring.

[0015] The upper part of the hook is arranged inside the lower part of the main body of the calibration device, and the hook body of the hook extends outside the main body of the calibration device.

[0016] The first spring is a torsion spring, which is arranged on one side of the upper part of the hook and is in a compressed state, and is used to keep the hook in the initial position.

[0017] The second spring is a compression spring, which is arranged on the other side of the upper part of the hook opposite to the first spring and is also in a compressed state, and jointly ensures the stability of the hook with the first spring.

[0018] As an improvement of the technical solution of the digital electricity meter calibration device with a snap structure of the present utility model, the digital electricity meter calibration device with a snap structure further includes a limiting structure, and the limiting structure includes a limiting main part arranged outside the main body of the calibration device.

[0019] As an improvement of the technical solution of the digital electricity meter calibration device with a snap structure of the present utility model, the vertical cross-section of the limiting main part is in a U-shaped, and a convex edge is arranged at the lower part of the limiting main part, and the convex edge limits the front-back movement of the limiting main part relative to the main body of the calibration device.

[0020] As an improvement to the technical solution of the digital electric energy meter calibration device with a snap structure of the present utility model, the calibration part is a probe.

[0021] As an improvement to the technical solution of the digital electric energy meter calibration device with a snap structure of the present utility model, a plurality of the wiring terminals are arranged in a wiring terminal box in the electric energy meter, and the calibration device main body is connected to the wiring terminal box.

[0022] Advantages of the present utility model:

[0023] The implementation of the present utility model significantly improves the efficiency and safety of electric energy meter calibration. In the present utility model, through the innovative snap structure design, a wireless and stable connection between the calibration device and the electric energy meter is achieved. This not only avoids problems such as poor contact and easy disconnection in traditional cable connections, reduces the labor intensity, and improves the work efficiency, but also the wireless connection method simplifies the on-site operation, reduces the risk of wiring errors and electric sparks, and significantly enhances the operation safety. In addition, the present utility model also includes a transmission mechanism and a limit structure. Through the ingenious design of the transmission mechanism and the limit structure, the stability and accuracy during the calibration process are further ensured, providing a reliable guarantee for the accurate calibration of the electric energy meter.

[0024] Moreover, in the present utility model, with the cooperation of the design that the hook is clamped in the first card slot and the limit structure, a fixed connection between the calibration device main body and the electric energy meter is achieved. The dual fixation mechanism ensures the stability of the calibration device during the calibration process, providing a strong guarantee for the accurate acquisition of signals. Description of the Drawings

[0025] Figure 1 is the front structure schematic diagram of the present utility model;

[0026] Figure 2 is the back structure schematic diagram of the present utility model;

[0027] Figure 3 is the structure schematic diagram of the transmission structure in the present utility model;

[0028] Figure 4 is Figure 3 the internal structure diagram of;

[0029] Figure 5 is the structure schematic diagram of the snap structure in the present utility model;

[0030] Figure 6 is Figure 5 the internal structure diagram of;

[0031] Figure 7 is the structure schematic diagram of the electric energy meter;

[0032] Figure 8 This is a matching diagram of the present utility model and an electric energy meter.

[0033] Explanation of reference numerals in the drawings: 1 - Main body of the calibration device; 2 - Calibration part; 3 - Wiring terminal; 4 - First card slot; 5 - Hook; 6 - Hook body; 7 - Button; 8 - Pulling rope; 9 - Pulling rope hole; 10 - First spring; 11 - Second spring; 12 - Limiting main part; 13 - Top wall; 14 - Side wall; 15 - Convex edge; 16 - Electric energy meter; 17 - Digital electric energy meter calibration device with snap structure; 18 - Second card slot. Specific embodiments

[0034] To make the invention purpose, technical solution and beneficial effects of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0035] As Figures 1 to 8 As shown, a digital electric energy meter calibration device 17 with a snap structure is used in cooperation with an electric energy meter 16. The digital electric energy meter calibration device 17 with a snap structure includes a main body 1 of the calibration device. A calibration part 2 is arranged at the lower part of the main body of the calibration device, and hooks 5 are respectively arranged at both ends of the calibration part 2; the electric energy meter 16 includes a wiring terminal 3 and two first card slots 4, and the first card slots 4 are arranged on the inner wall of the electric energy meter 16.

[0036] After the main body 1 of the calibration device and the electric energy meter 16 are clamped in the first card slots 4 through the hooks 5, the calibration part 2 is in contact with the wiring terminal 3.

[0037] In the present utility model, after the main body of the calibration device and the electric energy meter 16 are firmly connected through the hooks 5 and the first card slots 4, the calibration part 2 of the main body 1 of the calibration device is in contact with the wiring terminal 3 of the electric energy meter 16, so that the main body 1 of the calibration device is connected to the wiring terminal 3 of the electric energy meter 16 through the calibration part 2, and then the electric energy meter is calibrated. Since the main body of the calibration device and the electric energy meter 16 are purely wirelessly connected through the hooks 5 and it is not easy to move relative positions after connection, it solves the problems in the prior art that when the electric energy meter and the calibration device are connected by a cable, the contact with the wiring terminal is often unreliable, the alligator clip jumps open resulting in disconnection and stopping of the inspection, etc., with high labor intensity and low work efficiency; moreover, in the prior art, when operating live on site, using a wired connection method not only makes the wiring cumbersome and easy to connect wrongly, but also often has the phenomenon of electric sparks, there are potential safety hazards, and it is easy to have accidents due to improper operation, increasing potential safety hazards.

[0038] In some embodiments of the present utility model, the calibration part 2 is a probe, and the probe is in contact with the wiring terminal 3 to achieve the effect of pure wireless calibration.

[0039] In some embodiments of the present utility model, a plurality of wiring terminals 3 are arranged in a wiring terminal box in the electric energy meter 16, and the calibration device main body 1 is connected to the wiring terminal box.

[0040] In some embodiments of the present utility model, two first card slots 4 are fixedly arranged on the inner wall of the electric energy meter 16, the hook body 6 of the hook 5 is arranged outward, and one hook 5 is correspondingly clamped in one first card slot 4.

[0041] Specifically, in the present utility model, the first card slot 4 in the electric energy meter 16 is an inherent structure in the electric energy meter 16. In order to connect the hook 5 with the first card slot 4, a hook body 6 is arranged on the outer side of the lower part of the hook 5. The hook body 6 is a sloped protrusion. The hook body 6 of the hook 5 is arranged outward so as to be clamped in the first card slot 4, achieving the connection effect between the hook 5 and the first card slot 4, and then achieving the connection effect between the calibration device main body 1 and the electric energy meter 16. Moreover, since the first card slot 4 is an inherent structure in the electric energy meter 16, in the present utility model, improvement is made based on the existing structural environment to solve the problems existing in the prior art.

[0042] In some embodiments of the present utility model, the snap - structure digital electric energy meter calibration device 17 further includes a transmission mechanism;

[0043] The transmission mechanism includes a button 7 and a pull rope 8; a pull - rope hole 9 is opened in the upper part of the hook 5. The two ends of the pull rope 8 are respectively arranged on the two hooks 5 through the pull - rope hole 9, forming an effective transmission mechanism; the button 7 is arranged on the front surface of the calibration device main body 1, and the pull rope 8 is horizontally arranged inside the calibration device main body, and the pull rope 8 passes through the button 7; when the button 7 is pressed, this action realizes the rapid transmission of the pull rope 8, causing the two ends of the pull rope 8 to move inward, pulling the two hooks 5 to rotate inward around their axes respectively, so that the hook bodies 6 of the two hooks 5 both rotate inward, and then the distance between the two hooks 5 is shortened.

[0044] Furthermore, the transmission mechanism further includes a first spring 10 and a second spring 11; the upper part of the hook 5 is arranged in the lower part of the calibration device main body 1, and the hook body 6 of the hook 5 extends out of the calibration device main body 1 to facilitate the execution of its specific locking or unlocking function. In order to maintain the stability of the hook 5 in the initial position, the first spring 10 and the second spring 11 are respectively arranged on the opposite sides of the upper part of the hook 5. The first spring 10 is a torsion spring, and the second spring 11 is a compression spring. Both of these springs are in a pre - compressed state and cooperate together to ensure that the hook 5 is firmly held in the initial position until affected by an external force.

[0045] Specifically, both the first spring 10 and the second spring 11 are in a compressed state to ensure that the hook 5 is in the initial position. Since the pulling rope 8 is fixedly connected to the rope hole 9 of the hook 5, when the button 7 is pressed downward, both ends of the pulling rope 8 move inward, driving the hook 5 to rotate inward around the axis. The first spring 10 will be further compressed to absorb the energy generated during the rotation. At the same time, the second spring 11, which was also originally in a compressed state, will partially release its compression energy, but it still maintains a certain amount of compression to maintain the stability and responsiveness of the system.

[0046] When not in use, the first spring 10 and the second spring 11 exert pressure on the hook 5 to keep it in a vertical state. The distance between the hook bodies 6 of the two hooks 5 is smaller than the distance between the two first card slots 4 of the electricity meter 16. When in use, press the button 7 downward, both ends of the pulling rope move inward, the hook 5 rotates inward, aligns with the terminal 3 of the electricity meter 16 to be inspected, and then release the button 7. The hook 5 returns to the vertical position, and the hook 5 is stuck in the first card slot 4 of the electricity meter 16 to be inspected and automatically locked. When pulling out, press the button 7 downward, both ends of the pulling rope move inward, driving the hook 5 to rotate inward, the hook 5 disengages from the card slot, and the digital electricity meter calibration device 17 with a snap structure moves upward out of the terminal box of the electricity meter 16 to be inspected.

[0047] When the button 7 is pressed downward, since the pulling rope 8 passes through the hole of the button 7, normally the pulling rope 8 is in a horizontal manner. When pressed downward, the pulling rope 8 changes from a straight line to a curved line, causing the horizontal distance between the hook bodies 6 of the two hooks 5 connected to both ends of the pulling rope 8 to shorten, realizing the pulling rope 8 driving the two hooks 5 to rotate.

[0048] In some embodiments of the present utility model, the digital electricity meter calibration device 17 with a snap structure further includes a limiting structure, and the limiting structure includes a limiting main part 12 arranged outside the calibration device main body 1.

[0049] Furthermore, the vertical cross-section of the limiting main part 12 is in a U-shaped, and a convex edge 15 is provided at the lower part of the limiting main part 12. After the limiting structure is sleeved on the calibration device main body 1, the convex edge 15 is in close contact with the main body, and the convex edge 15 restricts the forward and backward movement of the limiting main part 12 relative to the calibration device main body 1.

[0050] It should be noted here that the vertical cross-section of the limiting main part 12 being in a U-shaped means that the limiting main part 12 is composed of a top wall 13 and side walls 14 extending downward from both ends of the top wall 13 respectively.

[0051] Specifically, in the present utility model, under the combined action of the limiting main member 12 and the convex edge 15, the effect of the limiting structure sleeving outside the main body of the calibration device is achieved, and the convex edge 15 is arranged at the front part outside the main body of the calibration device, achieving the avoidance of relative position movement between the calibration device main body 1 and the electric energy meter 16 after the calibration device main body 1 and the electric energy meter 16 are connected by means of the limiting main member 12.

[0052] More specifically, in the present utility model, a second card slot 18 is circumferentially arranged on the outer surface of the electric energy meter 16, which is an inherent structure of the electric energy meter 16. The limiting structure is sleeved on the calibration device main body 1, so that the limiting main member 12 is in close fit with the second card slot 18 of the electric energy meter 16, and in combination with the arrangement of the top and the side wall 14, a circumferential protection is formed to ensure the stable positioning of the calibration device main body 1 in the vertical direction and prevent the calibration device main body 1 from shaking or displacing during the detection process.

[0053] In the present utility model, under the combined action of the limiting main member 12 and the convex edge 15, the effect of the limiting structure sleeving outside the main body of the calibration device is achieved, and the convex edge 15 is arranged at the front part outside the main body of the calibration device, achieving the avoidance of relative position movement between the calibration device main body 1 and the electric energy meter 16 after the calibration device main body 1 and the electric energy meter 16 are connected; that is, in the present utility model, after the limiting structure is sleeved on the calibration device main body 1, under the combined action of the limiting main member 12 and the convex edge 15, the limiting structure forms a circumferential protection relative to the electric energy meter 16, and can ensure the stable positioning of the calibration device main body 1 in the horizontal direction and avoid the situation of shaking or displacement of the calibration device main body 1 during the calibration process.

[0054] Furthermore, in the present utility model, under the combined action of the design that the hook 5 is clamped in the first card slot 4 and the limiting structure, the fixed connection between the calibration device main body 1 and the electric energy meter 16 is achieved, and the double-fixing mechanism ensures the stability of the calibration device during the calibration process and provides a strong guarantee for the accurate acquisition of signals.

[0055] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

Claims

1. A digital electric energy meter calibration device with a buckle structure, which is used in cooperation with an electric energy meter. The digital electric energy meter calibration device with a buckle structure includes a calibration device main body. The electric energy meter includes wiring terminals and two first card slots, and the first card slots are arranged on the inner wall of the electric energy meter. It is characterized in that, A verification part is provided at the lower part of the verification device body, and hooks are provided at both sides of the verification part; After the verification device body and the electric energy meter are locked in the first locking slot by the locking hook, the verification part contacts the connection terminal.

2. The digital electric energy meter calibration device with a snap structure according to claim 1, characterized in that, A hook body is arranged on the outer side of the lower part of the hook, and the hook body is a slanted protrusion.

3. The digital electric energy meter calibration device with a snap structure according to claim 1, characterized in that The buckle structure digital electric energy meter calibration device also includes a transmission mechanism; The transmission mechanism includes a button and a pull rope; a pull rope hole is opened on the upper part of the hook, and the two ends of the pull rope are fixedly connected to the hook through the pull rope hole respectively; The button is arranged in front of the main body of the verification device, and the pull rope is arranged transversely inside the main body of the verification device, and the pull rope passes through the button; When the button is pressed, the two ends of the drawstring move inwards, and the drawstring drives the hook to rotate inwards.

4. The digital electric energy meter calibration device with a snap structure according to claim 3, characterized in that, The transmission mechanism also includes a first spring and a second spring; The upper part of the hook is arranged in the lower part of the main body of the verification device, and the hook body of the hook extends out of the main body of the verification device; The first spring is a torsion spring, which is arranged on one side of the upper part of the hook and is in a compressed state, and is used to keep the hook in an initial position; The second spring is a compression spring, which is arranged on the other side of the upper portion of the hook opposite to the first spring and is also in a compressed state, and together with the first spring ensures the stability of the hook.

5. The digital electric energy meter calibration device with a snap structure according to claim 1, characterized in that, The buckle structure digital electric energy meter calibration device further comprises a limit structure, and the limit structure comprises a limit main part arranged outside the calibration device body.

6. The digital electric energy meter calibration device with a snap structure according to claim 5, characterized in that, The vertical cross-section of the position limiting main component is in a convex shape, and a convex edge is arranged at the lower part of the position limiting main component, and the convex edge limits the forward and backward movement of the position limiting main component relative to the main body of the verification device.

7. The digital electric energy meter calibration device with a snap structure according to claim 1, characterized in that The verification unit is a probe.

8. The digital electric energy meter calibration device with a snap structure according to claim 1, characterized in that, The plurality of connection terminals are arranged in a connection terminal box in the electric energy meter, and the verification device body is connected to the connection terminal box.

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