Dustproof structure of electric energy meter

Abstract

The utility model discloses a dustproof structure of an electric energy meter, which belongs to the technical field of electric energy meters and comprises an electric energy meter and a sealing structure arranged on the electric energy meter and used for blocking and protecting a wiring position of the electric energy meter. The fastening screw is installed in the electric energy meter in a threaded mode and used for fixing the penetrating connecting wire, one end of the fastening screw is located in the wiring hole, and the sealing structure comprises a rubber ring which is arranged on one side of the electric energy meter and corresponds to the wiring hole and a rubber pad arranged in the electric energy meter. According to the utility model, during use, a connecting wire can penetrate into the wiring hole from the rubber ring for wiring, the rubber ring can be attached to the surface of the connecting wire to block dust and prevent the dust from falling to the wiring end of the connecting wire through the wiring hole, and the blocking and protecting cover can be used for blocking and protecting the fastening screw to prevent dust; and the probability of poor connection line contact or unsmooth signal transmission caused by dust is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric energy meter, concretely relates to a dustproof structure of electric energy meter. BACKGROUND

[0002] Electric energy meter is used to measure electric energy, also known as electric meter, fire table, kilowatt hour meter, and is an important equipment for measuring various electrical quantities.

[0003] Chinese patent publication number CN221631524U discloses a multi-outlet rail type electric energy meter, which comprises an electric energy meter body, a clamping groove is formed in one side wall of the electric energy meter body, limit plates are symmetrically fixed at the clamping groove on the two side walls of the electric energy meter body, a guide rail plate is connected in the clamping groove, a connecting hole is formed in the guide rail plate, a limit column is arranged in the connecting hole, and a display screen is installed on the side wall of the electric energy meter body opposite to the clamping groove. The beneficial effect is that the connecting hole is formed in the guide rail plate, the electric energy meter body is fixed on the guide rail plate through the clamping groove, the limit column is inserted into the connecting hole through the limit plate, the electric energy meter body is tightly fixed on the guide rail plate to complete installation, the electric energy meter body is prevented from shaking, the installation operation of the staff is reduced, and the speed of the staff installing the electric energy meter is improved.

[0004] In the prior art disclosed above, when connecting the electric energy meter, the connecting wire can be inserted into the wiring hole, and the wiring screw is used for fastening. However, the sealing effect of the electric energy meter at the wiring hole is poor, and the wiring screw is always exposed, which can easily cause dust to enter the wiring hole and adhere to the connecting end of the electric wire. Long-term use can cause poor contact or poor signal transmission, thereby affecting the measurement accuracy and stability of the electric energy meter. UTILITY MODEL CONTENTS

[0005] In view of the above technical deficiencies, the purpose of the utility model is to provide a dustproof structure of electric energy meter to solve some or all of the problems in the background art.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A dustproof structure of electric energy meter comprises:

[0008] An electric energy meter;

[0009] A sealing structure arranged on the electric energy meter for shielding the wiring of the electric energy meter;

[0010] An extrusion structure arranged on the sealing structure for extruding the sealing structure and tightly attaching the connected components;

[0011] A reset structure arranged on the extrusion structure for driving the movement of the extrusion structure to reset.

[0012] Preferably, the electric energy meter comprises:

[0013] A wiring hole is arranged in the interior of the electric energy meter for inserting a connecting wire;

[0014] A fastening screw is threadedly installed in the interior of the electric energy meter, one end of the fastening screw is located in the wiring hole for fixing the inserted connecting wire.

[0015] Preferably, the sealing structure comprises:

[0016] A rubber ring is arranged on one side of the electric energy meter and corresponds to the wiring hole;

[0017] A rubber pad is arranged in the interior of the electric energy meter;

[0018] A protective cover is movably installed on the electric energy meter, the protective cover is in contact with the surface of the rubber pad;

[0019] A positioning assembly is arranged on the protective cover for limiting the installation position of the protective cover.

[0020] Preferably, the positioning assembly comprises:

[0021] A plurality of positioning blocks are uniformly arranged on both sides of the protective cover;

[0022] A plurality of positioning grooves are arranged in the interior of the electric energy meter, and the positioning blocks are movably installed in the positioning grooves.

[0023] Preferably, the extrusion structure comprises:

[0024] A connecting plate;

[0025] A ring-shaped pressing rod is arranged on one side of the connecting plate;

[0026] A guide sleeve is arranged on one side of the electric energy meter, and the guide sleeve is slidably sleeved on the ring-shaped pressing rod;

[0027] An extrusion inclined surface is arranged in the interior of the ring-shaped pressing rod and corresponds to the rubber ring;

[0028] The interior of the connecting plate and the interior of the ring-shaped pressing rod are both provided with a wire hole for threading a wire, and the wire hole corresponds to the wiring hole.

[0029] Preferably, the extrusion structure further comprises:

[0030] A connecting strip is arranged on one side of the connecting plate;

[0031] A connecting piece is arranged on one side of the protective cover;

[0032] A limiting groove is arranged in the interior of the connecting strip and is adapted to the connecting piece;

[0033] The extrusion camber is arranged inside the limiting groove;

[0034] The mounting screw hole is arranged inside the connecting strip and the connecting sheet;

[0035] The mounting screw is screwed into the corresponding mounting screw hole.

[0036] Preferably, the reset structure comprises:

[0037] The spring is arranged between the electric energy meter and the connecting plate, and is used for driving the movement of the connecting plate to reset;

[0038] The guide assembly is arranged on the spring, and is used for preventing the spring from bending when stretching and contracting.

[0039] Preferably, the guide assembly comprises:

[0040] The guide rod is arranged on one side of the electric energy meter, and is slidingly arranged inside the connecting plate, and is used for guiding the movement direction of the connecting plate;

[0041] The baffle is arranged on one end of the guide rod, and is in contact with one side of the connecting plate, and is used for preventing the connecting plate from being loosened from the guide rod;

[0042] The spring is slidingly arranged on the guide rod.

[0043] The utility model discloses the beneficial effects are that:

[0044] The utility model discloses, when using, can connect the wire from rubber ring and enter the wiring hole and carry out wiring, and rubber ring can be attached with the surface of connecting wire, and dust is blocked, prevents the dust from falling to the wiring end of connecting wire through the wiring hole, and utilizes the setting of the blocking cover to carry out the blocking dustproof of fastening screw, further reduces the probability that connecting wire contact is not good or signal transmission is not smooth because of dust.

[0045] The utility model discloses, after connecting wire is connected, can drive annular pressure rod extrusion rubber ring through the push connecting plate, and rubber ring is extruded and will produce deformation and is attached with the surface of connecting wire more closely, improves the connection stability of sealing property and connecting wire, and simultaneously, and connecting strip will follow connecting plate and move, and make the connecting strip extrusion blocking cover that moves, and press the blocking cover to rubber pad, improve the attachment effect of blocking cover and rubber pad, thereby further improve the dustproof effect of electric energy meter wiring place, improve the operation stability of electric energy meter. BRIEF DESCRIPTION OF DRAWINGS

[0046] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 A schematic diagram of a dustproof structure for an electricity meter provided in an embodiment of this utility model;

[0048] Figure 2 A schematic diagram of the cross-sectional structure of the guide sleeve of a dustproof structure for an electricity meter provided in this embodiment of the present invention;

[0049] Figure 3 A schematic diagram of a dustproof cover structure for an electricity meter provided in this embodiment of the present utility model;

[0050] Figure 4 A schematic diagram of the connecting strip structure of a dustproof structure for an electricity meter provided in this embodiment of the utility model.

[0051] Explanation of reference numerals in the attached figures:

[0052] 1. Electricity meter; 101. Wiring hole; 102. Fastening screw; 2. Rubber ring; 201. Rubber pad; 202. Protective cover; 203. Positioning block; 204. Positioning groove; 3. Connecting plate; 301. Annular pressure rod; 302. Guide sleeve; 303. Extrusion bevel; 304. Connecting strip; 305. Connecting piece; 306. Limiting groove; 307. Extrusion arc surface; 308. Mounting screw hole; 309. Mounting screw; 4. Spring; 401. Guide rod; 402. Baffle. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] Example 1:

[0055] like Figures 1 to 4 As shown, this utility model provides a dustproof structure for an electricity meter, including: an electricity meter 1 and a sealing structure arranged on the electricity meter 1 to protect the wiring of the electricity meter 1.

[0056] The electric energy meter 1 comprises a wire hole 101 formed in the electric energy meter 1 for inserting a connecting wire, and a fastening screw 102 threadedly installed in the electric energy meter 1 for fixing the inserted connecting wire, one end of the fastening screw 102 being located in the wire hole 101.

[0057] The sealing structure comprises a rubber ring 2 arranged on one side of the electric energy meter 1 and corresponding to the wire hole 101, a rubber pad 201 arranged in the electric energy meter 1, a protective cover 202 movably installed on the electric energy meter 1 and in contact with the surface of the rubber pad 201, a positioning assembly arranged on the protective cover 202 for limiting the installation position of the protective cover 202, the protective cover 202 being able to be pulled out during wire connection, the fastening screw 102 in the electric energy meter 1 being exposed, the connecting wire being then inserted through the rubber ring 2 and into the wire hole 101, the protective cover 202 being closed after the connecting wire is fixed by the fastening screw 102, the protective cover 202 being able to shield the fastening screw 102 at this time, and the rubber ring 2 being in close contact with the surface of the wire hole 101 to prevent dust from entering.

[0058] Specifically, the positioning assembly comprises a plurality of positioning blocks 203 uniformly arranged on both sides of the protective cover 202, and a plurality of positioning grooves 204 formed in the electric energy meter 1, the positioning blocks 203 being movably installed in the positioning grooves 204, the positioning blocks 203 on the protective cover 202 being aligned with the positioning grooves 204 when the protective cover 202 is installed, and the positioning grooves 204 and the positioning blocks 203 being configured to prevent the installation position of the protective cover 202 from deviating.

[0059] Embodiment Two

[0060] On the basis of Embodiment One, in order to further improve the dustproof effect of the connecting wire connection, an extrusion structure for extruding the sealing structure and making it closely contact with the connecting component is arranged on the sealing structure, and a reset structure for driving the movement of the extrusion structure to reset is arranged on the extrusion structure.

[0061] The extrusion structure comprises a connecting plate 3 and an annular pressing rod 301 arranged on one side of the connecting plate 3, a guide sleeve 302 arranged on one side of the electric energy meter 1, the guide sleeve 302 being slidably sleeved on the annular pressing rod 301, an extrusion inclined surface 303 arranged in the annular pressing rod 301 and corresponding to the rubber ring 2, and wire holes formed in the connecting plate 3 and the interior of the annular pressing rod 301 for threading, the wire holes corresponding to the wire hole 101, the connecting plate 3 being pushed to drive the annular pressing rod 301 to slide in the guide sleeve 302, the continuously sliding annular pressing rod 301 driving the extrusion inclined surface 303 to extrude the rubber ring 2, the rubber ring 2 being pressed towards the connecting wire and being deformed under pressure, and the deformed rubber ring 2 being able to closely contact the surface of the connecting wire.

[0062] The extrusion structure also includes a connecting strip 304 arranged on one side of the connecting plate 3, a connecting piece 305 arranged on one side of the cover 202, a limiting groove 306 opened inside the connecting strip 304, the limiting groove 306 being adapted to the connecting piece 305, an extrusion arc surface 307 set inside the limiting groove 306, and mounting screw holes 308 opened inside the connecting strip 304 and the connecting piece 305, with a mounting screw 309 threaded into the corresponding mounting screw hole 308. The continuously moving connecting plate 3 will drive the connecting strip 304 to move, causing the connecting strip 304 to drive the extrusion arc surface 307 to extrude the connecting piece 305. When the connecting piece 305 is extruded, it will press against the rubber pad 201, making it fit more tightly with the rubber pad 201.

[0063] The reset structure includes a spring 4 arranged between the energy meter 1 and the connecting plate 3 for moving the connecting plate 3 to reset, and a guide component arranged on the spring 4 to prevent the spring 4 from bending when it extends or retracts. When the connecting plate 3 moves, it can compress the spring 4. When the position restriction on the connecting plate 3 is released, the spring 4 in the compressed state will push the connecting plate 3 to move and reset.

[0064] Specifically, the guiding assembly includes a guide rod 401 arranged on one side of the electricity meter 1 to guide the movement direction of the connecting plate 3. The guide rod 401 is slidably installed inside the connecting plate 3. A baffle 402 is arranged at one end of the guide rod 401 to prevent the connecting plate 3 from detaching from the guide rod 401. The baffle 402 is in contact with one side of the connecting plate 3. A spring 4 is slidably sleeved on the guide rod 401. When the connecting plate 3 moves, it can slide on the guide rod 401. The baffle 402 prevents the connecting plate 3 from detaching from the guide rod 401 when it moves.

[0065] Working principle:

[0066] refer to Figure 1 When wiring, pull out the cover 202 to expose the fastening screw 102 inside the electricity meter 1. Figure 3After the connection line is inserted into the connection hole 101, the connection line is fixed by the fastening screw 102, the positioning block 203 on the protective cover 202 is aligned with the positioning groove 204, the protective cover 202 is covered, the protective cover 202 is attached to the rubber pad 201, the fastening screw 102 is protected, the connecting plate 3 is pushed, the connecting plate 3 can slide on the guide rod 401 and compress the spring 4 when the connecting plate 3 moves, the connecting plate 3 moves and drives the annular pressing rod 301 to slide in the guide sleeve 302, the annular pressing rod 301 continuously slides and drives the extrusion inclined surface 303 to extrude the rubber ring 2, the rubber ring 2 is pressed to the connection line and is deformed under pressure, the rubber ring 2 is attached to the surface of the connection line after deformation, the sealing performance and the stability of the connection line are improved, the connecting strip 304 is moved by the continuously moving connecting plate 3, the extrusion arc surface 307 is extruded by the connecting strip 304, the connecting piece 305 is extruded and pressed on the rubber pad 201, the rubber pad 201 is attached more closely, the limiting groove 306 is sleeved on the connecting piece 305 by the continuously moving connecting strip 304, the position of the connecting piece 305 is limited by the connecting strip 304, the protective cover 202 is prevented from falling off, the mounting screw 309 is screwed into the mounting screw hole 308 on the connecting strip 304 and the connecting piece 305, and the position of the connecting plate 3 and the protective cover 202 is prevented from loosening.

[0067] When the connection line needs to be removed, the mounting screw 309 is unscrewed from the connecting strip 304 and the connecting piece 305, the position of the connecting plate 3 is released, the spring 4 in the compressed state pushes the connecting plate 3 to move and reset, the connecting plate 3 is prevented from loosening from the guide rod 401 by the baffle 402, the annular pressing rod 301 is moved and reset by the continuously moving connecting plate 3, the extrusion inclined surface 303 is separated from the extrusion of the rubber ring 2, the rubber ring 2 is loosened from the connection line, the connecting strip 304 is moved and reset with the connecting plate 3, the connecting strip 304 drives the limiting groove 306 to separate from the connecting piece 305, the connection limitation of the protective cover 202 is released, the protective cover 202 is opened, the fastening screw 102 is exposed, and the connection or replacement operation is facilitated.

[0068] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model claims and equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A dustproof structure of an electric energy meter, characterized by comprising: The utility model relates to an electric energy meter (1) and a sealing structure thereof. The utility model discloses an electric energy meter (1) and a sealing structure thereof. The electric energy meter (1) comprises: A wiring hole (101) is formed in the interior of the electric energy meter (1) and is used for penetrating a connecting wire; A fastening screw (102) is screw-mounted in the interior of the electric energy meter (1), one end of the fastening screw (102) is located in the wiring hole (101), and the fastening screw (102) is used for fixing the penetrating connecting wire.

2. The dustproof structure of an electric energy meter according to claim 1, characterized in that, The sealing structure comprises: A rubber ring (2) is arranged on one side of the electric energy meter (1) and corresponds to the wiring hole (101); A rubber pad (201) is arranged in the interior of the electric energy meter (1); 3. The dustproof structure of an electric energy meter according to claim 1, wherein A shielding cover (202) is movably mounted on the electric energy meter (1), the shielding cover (202) is in contact with the surface of the rubber pad (201); A positioning assembly is arranged on the shielding cover (202) and is used for limiting the mounting position of the shielding cover (202). The positioning assembly comprises: A plurality of positioning blocks (203) are uniformly arranged on both sides of the shielding cover (202); A plurality of positioning grooves (204) are formed in the interior of the electric energy meter (1), and the positioning blocks (203) are movably mounted in the positioning grooves (204).

4. The dustproof structure of an electric energy meter according to claim 3, wherein The pressing structure comprises: A connecting plate (3); An annular pressing rod (301) is arranged on one side of the connecting plate (3); 5. The dustproof structure of an electric energy meter according to claim 1, wherein A guide sleeve (302) is arranged on one side of the electric energy meter (1), the guide sleeve (302) is slidably sleeved on the annular pressing rod (301); A pressing inclined surface (303) is arranged in the interior of the annular pressing rod (301) and corresponds to the rubber ring (2); The interior of the connecting plate (3) and the interior of the annular pressing rod (301) are both provided with wire holes for penetrating a wire, and the wire holes correspond to the wiring hole (101). The pressing structure further comprises: A connecting strip (304) is arranged on one side of the connecting plate (3); A connecting sheet (305) is arranged on one side of the shielding cover (202); 6. The dustproof structure of an electric energy meter according to claim 1, wherein A limiting groove (306) is formed in the interior of the connecting strip (304) and is matched with the connecting sheet (305); A pressing arc surface (307) is arranged in the interior of the limiting groove (306); Mounting screw holes (308) are formed in the interior of the connecting strip (304) and the connecting sheet (305); Mounting screw rods (309) are screw-mounted in the corresponding mounting screw holes (308). The resetting structure comprises: A spring (4) is arranged between the electric energy meter (1) and the connecting plate (3) and is used for driving the movement of the connecting plate (3) to reset; A guide assembly is arranged on the spring (4) and is used for preventing the spring (4) from being bent when being stretched and contracted.

7. The dustproof structure of an electric energy meter according to claim 1, wherein The guide assembly comprises: A guide rod (401) is arranged on one side of the electric energy meter (1), the guide rod (401) is slidably mounted in the interior of the connecting plate (3), and the guide rod (401) is used for guiding the movement direction of the connecting plate (3). ​ 8. The dustproof structure of an electric energy meter according to claim 7, wherein ​ ​ A baffle plate (402) is arranged at one end of the guide rod (401), and the baffle plate (402) is in contact with one side of the connecting plate (3) to prevent the connecting plate (3) from loosening from the guide rod (401); Wherein, the spring (4) is sleeved on the guide rod (401).

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