Three-phase watt-hour meter with positioning shielding cover

Abstract

The three-phase watt-hour meter comprises a watt-hour meter main body and the shielding cover, the bottom of the watt-hour meter main body is provided with a plurality of connecting ports, the connecting ports are located in the shielding cover, two sides of the top of the shielding cover are respectively provided with a hinge plate, and the hinge plates are connected with the shielding cover. The shielding cover is hinged to the watt-hour meter body through a hinge plate, the end, facing the watt-hour meter body, of the hinge plate is semicircular, a plunger groove facing the outer wall of the hinge plate is formed in the position, corresponding to the hinge plate, of the watt-hour meter body, and a plunger spring is arranged in the plunger groove. A plurality of positioning grooves matched with the plunger springs are formed in the outer wall of the hinge plate. The utility model provides a three-phase watt-hour meter with a hinged shielding cover and a positioning function.

Description

Technical Field

[0001] The utility model relates to the technical field of electric meter, in particular to a three-phase electric meter with a positioning shielding cover. Background Art

[0002] The three-phase electricity meter is suitable for measuring three-phase four-wire AC active electrical energy with a rated frequency of 50Hz or 60Hz. It is designed for fixed installation indoors and suitable for an environment with air that does not contain corrosive gases and avoids the influence of dust, mold, smoke, condensation, insects, etc. Choose a dry and ventilated place. The base plate of the electricity meter should be placed on a solid, fire-resistant wall that is not easily affected by moisture and vibration. The recommended installation height of the electricity meter is about 1.8m. After installation, the electricity meter should be vertical and not tilted.

[0003] The three-phase electricity meter is provided with several interfaces for wiring at the bottom. At the same time, a shield is provided at the bottom of the three-phase electricity meter to cover the interface position. However, the shield needs to be removed when wiring. The existing shield is usually connected by plugging and screwing in bolts. This structure requires a screwdriver to be carried when disassembling. Even if it only requires simple operation, it needs to be removed with a screwdriver, and it may be accidentally lost after removing the bolts, which is quite troublesome. Some electricity meters also use a hinged form to install the shield, but the hinged shield will fall down due to its weight after it is opened, affecting the operation. It needs to be held up all the time, which is not practical. Utility Model Content

[0004] In summary, in order to overcome the deficiencies of the prior art, the present invention provides a three-phase electric meter with an articulated shielding cover and positioning function.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a three-phase electricity meter with a positioning shielding cover, comprising an electricity meter body and a shielding cover, wherein a plurality of connection ports are provided at the bottom of the electricity meter body, the connection ports are located inside the shielding cover, a hinged plate is provided on each side of the top of the shielding cover, the shielding cover is hinged to the electricity meter body by means of the hinged plate, the end of the hinged plate facing the electricity meter body is semicircular, the position of the electricity meter body corresponding to the hinged plate is provided with a plunger groove arranged toward the outer wall of the hinged plate, a plunger spring is provided in the plunger groove, and a plurality of positioning grooves adapted to the plunger spring are provided on the outer wall of the hinged plate.

[0006] With this arrangement, the plunger spring will push toward the hinge plate in the plunger groove and press into the positioning groove on the hinge plate to stabilize the shielding cover at the current angle. When the shielding cover needs to be operated, the shielding cover is swung. During the swinging process, the plunger spring in the plunger groove will be squeezed back into the plunger groove, and will pop out again when the other positioning groove moves to the position of the plunger groove. The above process will be repeated by continuing to swing. When the shielding cover swings to the appropriate angle, it stops, and the plunger spring will stabilize the shielding cover at the current angle. The user can operate without holding it and can press it back after the operation is completed. The operation is convenient, and the use of plunger springs is not as easy to wear as interference fit, and is more durable.

[0007] Furthermore, the positions of the two hinged plates on the main body of the electric meter are respectively provided with a hinge groove adapted thereto, and the plunger groove is located in the hinge groove.

[0008] With such arrangement, the hinge plate will move in the hinge slot and will not be exposed outside the main body of the electric meter, thereby reducing the overall volume and making it easier to arrange the hinge slot.

[0009] Furthermore, a side plate is provided at each end of the hinge plate, and the outer diameter of the side plate is not less than the outer diameter of the main body of the hinge plate.

[0010] Such an arrangement can prevent the positioning groove from being exposed to the outside and also prevent the positioning groove from contacting the inner wall of the hinge groove during rotation, thereby being more stable.

[0011] Furthermore, the axis of the plunger slot is installed perpendicular to the wall.

[0012] With this arrangement, the plunger spring will be completely covered and will not be exposed, reducing the possibility of dust intrusion.

[0013] Furthermore, a plurality of the positioning grooves are evenly distributed within a range of a 90-degree angle on the hinge plate.

[0014] In this arrangement, the positioning groove is only provided on the surface of the hinge plate facing the hinge groove, and the positioning groove is not exposed to the outside, which is more beautiful.

[0015] Furthermore, the two hinge grooves are located at the outermost ends on both sides of the electricity meter body.

[0016] In this arrangement, the hinge slot is arranged at the outermost end and penetrates the side wall of the electric meter body, which makes installation more convenient.

[0017] Furthermore, it also includes a hinge shaft, and there are two hinge shafts. The two hinge shafts respectively pass through one hinge plate and are hinged to the electricity meter body.

[0018] With this arrangement, the hinge shaft only exists at the hinge plate, and there is no hinge shaft in the middle of the meter body, which will not affect the installation of internal parts. The hinge shaft can be connected to the meter body or the shielding cover by interference fit.

[0019] Furthermore, the plunger slot and the plunger spring are both provided with one, and the positioning slot is provided on the hinge plate on a side corresponding to the plunger slot.

[0020] With this arrangement, the plunger spring and the positioning groove are only provided on one side, which saves costs and does not require consideration of the positioning accuracy on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0022] Figure 2 It is a partial exploded view of an embodiment of the present utility model.

[0023] Figure 3 It is a cross-sectional view of an embodiment of the present utility model.

[0024] Figure 4 for Figure 3 Magnified view of part A.

[0025] Meaning of the numbers in the figure: 1. Electricity meter body, 101. Connecting port, 102. Plunger slot, 103. Plunger spring, 104. Hinge slot, 2. Shielding cover, 201. Hinge plate, 2011. Positioning slot, 202. Side plate, 3. Hinge axis. DETAILED DESCRIPTION

[0026] This specific embodiment is merely an explanation of this embodiment and is not a limitation of this embodiment. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of this embodiment, they are protected by patent law.

[0027] Referring to the accompanying drawings, the present invention provides the following technical solutions: a three-phase electricity meter with a shielding cover and positioning, comprising an electricity meter body 1 and a shielding cover 2, wherein the bottom of the electricity meter body 1 is provided with a plurality of connection ports 101, the connection ports 101 are located in the shielding cover 2, and a hinge plate 201 is provided on both sides of the top of the shielding cover 2, respectively, the shielding cover 2 is hinged to the electricity meter body 1 by means of the hinge plate 201, the end of the hinge plate 201 facing the electricity meter body 1 is semicircular, the position of the electricity meter body 1 corresponding to the hinge plate 201 is provided with a plunger groove 102 arranged toward the outer wall of the hinge plate 201, a plunger spring 103 is provided in the plunger groove 102, and the outer wall of the hinge plate 201 is provided with a plurality of positioning grooves 2011 adapted to the plunger spring 103.

[0028] With this arrangement, the plunger spring 103 will push toward the hinge plate 201 in the plunger groove 102, and press into the positioning groove 2011 on the hinge plate 201 to stabilize the shielding cover 2 at the current angle. When the shielding cover 2 needs to be operated, it will be swung. During the swinging process, the plunger spring 103 in the plunger groove 102 will be squeezed back into the plunger groove 102, and will pop out again when the other positioning groove 2011 moves to the position of the plunger groove 102. The above process will be repeated by continuing to swing, and the shielding cover 2 will stop when it swings to the appropriate angle. The plunger spring 103 will stabilize the shielding cover 2 at the current angle, and the user can operate without holding it. After the operation is completed, it can be pressed back. The operation is convenient, and the use of the plunger spring 103 is not as easy to wear as interference fit, and is more durable.

[0029] Preferably, in this embodiment, the positions of the electric meter body 1 corresponding to the two hinge plates 201 are each provided with a hinge groove 104 adapted thereto, and the plunger groove 102 is located in the hinge groove 104 .

[0030] With such a configuration, the hinge plate 201 will move in the hinge slot 104 and will not be exposed outside the meter body 1 , thereby reducing the overall volume and making it easier to configure the hinge slot 104 .

[0031] Preferably, in this embodiment, a side plate 202 is provided at each end of the hinge plate 201 , and the outer diameter of the side plate 202 is not less than the outer diameter of the main body of the hinge plate 201 .

[0032] Such a configuration can prevent the positioning groove 2011 from being exposed to the outside, and also prevent the positioning groove 2011 from contacting the inner wall of the hinge groove 104 during rotation, thereby being more stable.

[0033] Preferably, in this embodiment, the axis of the plunger slot 102 is installed perpendicular to the wall.

[0034] With this arrangement, the plunger spring 103 will be completely covered and will not be exposed to the outside, thus reducing the possibility of dust entering.

[0035] Preferably, in this embodiment, the plurality of positioning grooves 2011 are evenly distributed within a range of a 90-degree angle on the hinge plate 201 .

[0036] In this configuration, the positioning groove 2011 is only provided on the surface of the hinge plate 201 facing the hinge groove 104 , and the positioning groove 2011 is not exposed to the outside, which is more aesthetically pleasing.

[0037] Preferably, in this embodiment, the two hinge slots 104 are located at the outermost ends on both sides of the electricity meter body 1 .

[0038] In this configuration, the hinge slot 104 is disposed at the outermost end and penetrates the side wall of the meter body 1 , which makes installation more convenient.

[0039] Preferably, this embodiment further includes a hinge shaft 3 , wherein two hinge shafts 3 are provided, and the two hinge shafts 3 respectively pass through one hinge plate 201 and are hinged to the electricity meter body 1 .

[0040] With this arrangement, the hinge shaft 3 only exists at the position of the hinge plate 201, and the hinge shaft 3 will not appear in the middle position inside the meter body 1, which will not affect the installation of internal parts. The hinge shaft 3 can be connected to the meter body 1 or the shielding cover 2 by interference fit.

[0041] Preferably, in this embodiment, the plunger slot 102 and the plunger spring 103 are both provided with one, and the positioning slot 2011 is provided on the hinge plate 201 on a side corresponding to the plunger slot 102 .

[0042] With this arrangement, the plunger spring 103 and the positioning groove 2011 are only provided on one side, which saves costs and does not require consideration of the positioning accuracy on both sides.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, the scope of protection of the present invention is not limited thereto. Any equivalent replacement or change made by any technician familiar with the technical field within the technical scope disclosed by the present invention according to the technical solution and the utility model concept of the present invention should be covered by the scope of protection of the present invention.

Claims

1. A three-phase watt-hour meter with a positioning shield, comprising a meter body and a shield, wherein the bottom of the meter body is provided with a plurality of connection ports, the connection ports being located within the shield, and characterized in that: A hinge plate is provided on each side of the top of the shielding cover, and the shielding cover is hinged to the electricity meter body by means of the hinge plate. The end of the hinge plate facing the electricity meter body is semicircular, and the position of the electricity meter body corresponding to the hinge plate is provided with a plunger groove arranged toward the outer wall of the hinge plate. A plunger spring is provided in the plunger groove, and the outer wall of the hinge plate is provided with a plurality of positioning grooves adapted to the plunger spring.

2. A three-phase watt-hour meter with a positioning shielding cover according to claim 1, characterized in that: The positions of the electric meter body corresponding to the two hinge plates are respectively provided with a hinge groove adapted thereto, and the plunger groove is located in the hinge groove.

3. A three-phase watt-hour meter with a positioning shielding cover according to claim 2, characterized in that: A side plate is respectively provided at both ends of the hinge plate, and the outer diameter of the side plate is not less than the outer diameter of the main body of the hinge plate.

4. A three-phase watt-hour meter with a positioning shielding cover according to claim 2, characterized in that: The axis of the plunger slot is installed vertically on the wall.

5. A three-phase watt-hour meter with a positioning shielding cover according to claim 4, characterized in that: The plurality of positioning grooves are evenly distributed within a range of a 90-degree angle on the hinge plate.

6. A three-phase watt-hour meter with a positioning shielding cover according to claim 2, characterized in that: The two hinge grooves are located at the outermost ends on both sides of the electric meter body.

7. The three-phase watt-hour meter with a positioning shielding cover according to claim 2, characterized in that: It also includes two hinge shafts, and the two hinge shafts respectively pass through one hinge plate and are hinged to the main body of the electricity meter.

8. The three-phase watt-hour meter with a positioning shielding cover according to claim 1, characterized in that: The plunger slot and the plunger spring are both provided with one, and the positioning slot is arranged on the hinge plate on a side corresponding to the plunger slot.

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