Three-phase watt-hour meter with detachable and swingable shielding cover

Abstract

The utility model relates to a three-phase watt-hour meter with a detachable and swingable shielding cover, comprising a watt-hour meter main body and a 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, the three-phase watt-hour meter also comprises a connecting rod, the top of the shielding cover is provided with a hinge rod, and the hinge rod is connected with the shielding cover. The connecting rod is slidably connected with the watt-hour meter body, a connecting plate is arranged at one end, facing the shielding cover, of the connecting rod, the connecting plate is provided with a hinge hole matched with the hinge rod, the hinge hole is provided with an opening in the side wall of the connecting plate, and the width of the opening is not smaller than the diameter of the hinge rod. The connecting rod slides to control the opening of the hinge hole to be switched between the interior of the watt-hour meter body and the exterior of the watt-hour meter body. According to the three-phase watt-hour meter provided by the utility model, the shielding cover can be detached or lifted and swung according to the operation difficulty of an operator.

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 detachable and swingable 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. When complex operations are required, 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 watt-hour meter in which the operator can choose to remove the shielding cover or lift the swinging shielding cover according to the difficulty of operation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a three-phase electricity meter with a detachable and swingable shield, comprising an electricity meter body and a shield, wherein a plurality of connection ports are provided at the bottom of the electricity meter body, and the connection ports are located inside the shield, and further comprising a connecting rod, a hinged rod is provided at the top of the shield, and the connecting rod is slidably connected to the electricity meter body, a connecting plate is provided at one end of the connecting rod facing the shield, and the connecting plate is provided with a hinge hole adapted to the hinged rod, and the hinge hole is opened on the side wall of the connecting plate, and the width of the opening is not less than the diameter of the hinged rod, and the connecting rod relies on sliding to control the opening of the hinged hole to switch between inside and outside the electricity meter body.

[0006] With this arrangement, when simple operation is required, the shield can be swung to swing around the hinged rod. After the operation is completed, the shield will fall down due to gravity when it is released. When complex operation is required, the connecting rod can be slid to make the opening of the hinged hole slide out from the interior of the meter body. In this way, the hinged rod of the shield can be moved out from the position of the opening, and the shield can be removed for complex operation. After the operation is completed, the hinged rod of the shield is inserted back into the hinged hole from the opening position, and then the connecting rod is slid to make the opening return to the interior of the meter body. In this way, the shield returns to the hinged state, which is more practical and easy to disassemble and assemble.

[0007] Furthermore, a hinge plate is provided on each side of the top of the shielding cover, and the hinge rod is located between the two hinge plates.

[0008] With this arrangement, the two hinge plates support the hinge rod from both sides, making it more stable.

[0009] Furthermore, there are two connecting rods, and the two connecting plates are located between the two hinged plates.

[0010] With this arrangement, the connecting plates on the two connecting rods support the hinge rod from both sides, making it more stable.

[0011] Furthermore, the opening of the hinge hole is located on the side of the connecting plate facing away from the electricity meter body.

[0012] With this arrangement, the hinged rod can be pressed into the opening or pulled out of the opening from the outside, which makes the operation more convenient.

[0013] Furthermore, a limiting member is included, which limits the sliding distance of the connecting rod.

[0014] With this arrangement, the limiting member can prevent the connecting rod from sliding out due to excessive sliding, thereby providing greater stability.

[0015] Furthermore, the electricity meter body is provided with a sliding slot adapted to the connecting rod.

[0016] With this arrangement, the connecting rod will slide in the sliding slot.

[0017] Furthermore, the limiting member is a bolt, and the connecting rod is provided with a strip groove with a width not less than the diameter of the limiting member. The length direction of the strip groove is set toward the sliding direction of the connecting rod, and the limiting member passes through the outer wall of the electricity meter body at the position of the strip groove and is threadedly connected to it.

[0018] With this arrangement, after the connecting rod is inserted into the sliding slot, the screw can be screwed in from the outside of the meter body. After screwing in, the screw will be inserted into the strip groove. The two can cooperate to achieve a positioning effect, and the connecting rod will not slide out of the sliding slot. The structure is simple.

[0019] Furthermore, a reset member is included, and the reset member applies a force on the connecting rod to move back to the shielding cover.

[0020] With this arrangement, the reset member applies a force to the connecting rod, so that the connecting rod always remains in a state where the opening is located inside the main body of the electric meter, ensuring that the hinged rod does not fall out in normal conditions and making the structure more stable.

[0021] Furthermore, the reset member is a spring sleeved outside the connecting rod, and a pressure plate with an outer diameter not less than that of the reset member is provided on the side of the connecting rod facing away from the shielding cover.

[0022] With this arrangement, the spring will press the pressure plate to exert force, which is more stable. During operation, you only need to press the pressure plate to push out the opening of the hinge hole, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0024] Figure 2 The local explosion of the embodiment of the utility model Figure 1 .

[0025] Figure 3 The local explosion of the embodiment of the utility model Figure 2 .

[0026] Meaning of the numbers in the figure: 1. Electricity meter body, 101. Connecting port, 102. Sliding slot, 2. Shielding cover, 201. Hinge rod, 202. Hinge plate, 3. Connecting rod, 301. Connecting plate, 3011. Hinge hole, 302. Strip groove, 303. Pressing plate, 4. Limiting member, 5. Resetting member. DETAILED DESCRIPTION

[0027] 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.

[0028] Referring to the accompanying drawings, the present invention provides the following technical solutions: a three-phase electricity meter with a detachable and swingable shielding cover, comprising an electricity meter body 1 and a shielding cover 2, wherein the bottom of the electricity meter body 1 is provided with several connection ports 101, and the connection ports 101 are located inside the shielding cover 2, and further comprising a connecting rod 3, and the top of the shielding cover 2 is provided with a hinged rod 201, and the connecting rod 3 is slidably connected to the electricity meter body 1, and the end of the connecting rod 3 facing the shielding cover 2 is provided with a connecting plate 301, and the connecting plate 301 is provided with a hinged hole 3011 adapted to the hinged rod 201, and the hinged hole 3011 is opened on the side wall of the connecting plate 301, and the width of the opening is not less than the diameter of the hinged rod 201, and the connecting rod 3 relies on sliding to control the opening of the hinged hole 3011 to switch between inside and outside the electricity meter body 1, and the cross-section of the connecting rod 3 can also be set to a square to avoid rotation during sliding.

[0029] With such arrangement, when simple operation is required, the shielding cover 2 can be swung so as to swing around the hinged rod 201. After the operation is completed, the shielding cover 2 can be released and it will fall due to gravity. When complex operation is required, the connecting rod 3 can be slid so that the opening of the hinged hole 3011 slides out from the inside of the electricity meter body 1, so that the hinged rod 201 of the shielding cover 2 can be moved out from the position of the opening, and the shielding cover 2 can be removed for complex operation. After the operation is completed, the hinged rod 201 of the shielding cover 2 is inserted from the opening position back into the hinged hole 3011, and then the connecting rod 3 is slid so that the opening returns to the inside of the electricity meter body 1, so that the shielding cover 2 returns to the hinged state, which is more practical and easy to assemble and disassemble.

[0030] Preferably, in this embodiment, a hinge plate 202 is provided on each side of the top of the shielding cover 2 , and the hinge rod 201 is located between the two hinge plates 202 .

[0031] With this arrangement, the two hinge plates 202 support the hinge rod 201 from both sides, making it more stable.

[0032] In this embodiment, preferably, two connecting rods 3 are provided, and the two connecting plates 301 are located between the two hinge plates 202 .

[0033] With this arrangement, the connecting plates 301 on the two connecting rods 3 support the hinge rod 201 from both sides, which is more stable.

[0034] Preferably, in this embodiment, the opening of the hinge hole 3011 is located on the side of the connecting plate 301 facing away from the electricity meter body 1 .

[0035] With this arrangement, the hinge rod 201 can be pressed into the opening or pulled out of the opening from the outside, which makes the operation more convenient.

[0036] Preferably, this embodiment further includes a limiting member 4 , which limits the sliding distance of the connecting rod 3 .

[0037] With such an arrangement, the limiting member 4 can prevent the connecting rod 3 from sliding out due to excessive sliding, and is more stable.

[0038] Preferably, in this embodiment, the electric meter body 1 is provided with a sliding slot 102 adapted to the connecting rod 3 , and the shape of the sliding slot 102 can be adapted to the shape of each position of the connecting rod 3 .

[0039] With this arrangement, the connecting rod 3 will slide in the sliding slot 102 .

[0040] Preferably, in this embodiment, the limiting member 4 is a bolt, and the connecting rod 3 is provided with a strip groove 302 whose width is not less than the diameter of the limiting member 4. The length direction of the strip groove 302 is set toward the sliding direction of the connecting rod 3, and the limiting member 4 passes through the outer wall of the electricity meter body 1 at the position of the strip groove 302 and is threadedly connected to it.

[0041] With this arrangement, after the connecting rod 3 is inserted into the sliding slot 102, the screw can be screwed in from the outside of the meter body 1. After screwing in, the screw will be inserted into the strip groove 302. The two can cooperate to achieve a positioning effect, and the connecting rod 3 will not slide out of the sliding slot 102. The structure is simple.

[0042] Preferably, this embodiment further includes a reset member 5 , which applies a force on the connecting rod 3 toward the shielding cover 2 .

[0043] With such arrangement, the reset member 5 exerts a force on the connecting rod 3 to keep the opening thereof in the meter body 1 at all times, thereby ensuring that the hinged rod 201 does not fall out in normal state and making the structure more stable.

[0044] Preferably, in this embodiment, the reset member 5 is a spring sleeved outside the connecting rod 3 , and a pressure plate 303 having an outer diameter not less than that of the reset member 5 is provided on the side of the connecting rod 3 facing away from the shielding cover 2 .

[0045] With such arrangement, the spring will press against the pressing plate 303 to exert a force, which is more stable. During operation, the opening of the hinge hole 3011 can be pushed out by simply pressing the pressing plate 303, which is convenient to operate.

[0046] 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 detachable and swingable 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 wherein: It also includes a connecting rod, a hinged rod is provided on the top of the shielding cover, the connecting rod is slidably connected to the electricity meter body, a connecting plate is provided at one end of the connecting rod facing the shielding cover, the connecting plate is provided with a hinged hole adapted to the hinged rod, the hinged hole is opened on the side wall of the connecting plate, the width of the opening is not less than the diameter of the hinged rod, and the connecting rod relies on sliding to control the opening of the hinged hole to switch inside and outside the electricity meter body.

2. A three-phase watt-hour meter with a detachable and swingable shield according to claim 1, characterized in that: A hinge plate is respectively provided on both sides of the top of the shielding cover, and the hinge rod is located between the two hinge plates.

3. A three-phase watt-hour meter with a detachable and swingable shield according to claim 2, characterized in that: There are two connecting rods, and the two connecting plates are located between the two hinged plates.

4. The three-phase watt-hour meter with a detachable and swingable shield according to claim 1, characterized in that: The opening of the hinge hole is located on the side of the connecting plate facing away from the electric meter body.

5. The three-phase watt-hour meter with a detachable and swingable shield according to claim 1, characterized in that: It also includes a limiting member, which limits the sliding distance of the connecting rod.

6. A three-phase watt-hour meter with a detachable and swingable shield according to claim 5, characterized in that: The electric meter body is provided with a sliding slot adapted to the connecting rod.

7. A three-phase watt-hour meter with a detachable and swingable shield according to claim 6, characterized in that: The limiting member is a bolt, and the connecting rod is provided with a strip groove with a width not less than the diameter of the limiting member. The length direction of the strip groove is set toward the sliding direction of the connecting rod. The limiting member passes through the outer wall of the electricity meter body at the position of the strip groove and is threadedly connected to it.

8. The three-phase watt-hour meter with a detachable and swingable shield according to claim 6, characterized in that: It also includes a reset member, which applies a force on the connecting rod to move back to the shielding cover.

9. The three-phase watt-hour meter with a detachable and swingable shield according to claim 8, characterized in that: The reset member is a spring sleeved outside the connecting rod, and a pressure plate with an outer diameter not less than that of the reset member is provided on the side of the connecting rod facing away from the shielding cover.

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