Three-phase watt-hour meter with easily detachable shielding cover

Abstract

The utility model relates to a three-phase watt-hour meter with a detachable 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 arranged in the shielding cover, the three-phase watt-hour meter also comprises a quick-release rod, the shielding cover is provided with a rotating hole matched with the quick-release rod, and the rotating hole is provided with a plurality of through holes matched with the quick-release rod. One end, facing the watt-hour meter main body, of the quick release rod and one end, back to the watt-hour meter main body, of the quick release rod are respectively provided with a connecting head and a driving head, the connecting head is in a long strip shape, the watt-hour meter main body is provided with a connecting hole matched with the connecting head, and a connecting cavity is formed in the connecting hole. The utility model provides the three-phase watt-hour meter of which the shielding cover can be assembled and disassembled without a tool.

Description

Technical Field

[0001] The utility model relates to the technical field of electric meter, in particular to a three-phase electric meter with an easily detachable 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 bottom of the three-phase electricity meter is provided with several interfaces for wiring. At the same time, a shielding cover is provided at the bottom of the three-phase electricity meter to cover the position of the interface. However, the shielding cover needs to be removed when wiring. The existing shielding cover is usually connected by plugging and screwing in bolts. This structure requires a screwdriver to disassemble, and the bolts may be accidentally lost after being removed, which is quite troublesome. 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 whose shielding cover can be disassembled and assembled without tools.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a three-phase electricity meter with an easily removable 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, and the connection ports are located inside the shielding cover, and further comprising a quick-release rod, wherein the shielding cover is provided with a rotating hole adapted to the quick-release rod, and the quick-release rod is provided with a connecting head and a driving head at one end facing the electricity meter body and the other end facing away from the electricity meter body, respectively, wherein the connecting head is long and narrow, and the electricity meter body is provided with a connecting hole adapted to the connecting head, and a connecting cavity is provided in the connecting hole.

[0006] With this arrangement, when you want to disassemble, you only need to turn the driving head on the quick-release rod to make the quick-release rod rotate on the shield cover, so that the connecting head at the other end of the quick-release rod will rotate accordingly. When the connecting head rotates to completely overlap with the connecting hole, the shield cover can be directly pulled out and removed without the need for additional tools. After the operation is completed, press the connecting head into the connecting port. After it is fully inserted, turn the driving head again to make the connecting head rotate in the connecting cavity. After rotation, the connecting head and the connecting hole no longer overlap, so that the shield cover will be buckled on the electricity meter body through the connecting head. Again, no tools are required, and the connecting cavity of the connecting hole is the cavity for installing parts of the electricity meter body, and no deliberate processing is required.

[0007] Furthermore, a reset member is included, and the reset member applies a force on the quick-release rod to move back to the main body of the electric meter.

[0008] With this arrangement, the reset piece can add clamping force to the quick-release rod, allowing for a larger gap between the drive head and the connector, making installation more convenient. After the connection is complete, the reset piece will tighten the connector, ensuring that the gap does not affect stability.

[0009] Furthermore, the reset member is a spring sleeved outside the quick-release rod, and the reset member is located between the driving head and the shielding cover.

[0010] With this arrangement, the spring will press against the driving head to exert force thereon, and being sleeved outside the quick release rod is more stable and has a simple structure.

[0011] Furthermore, a reset groove is provided on a side of the shielding cover facing away from the main body of the electric meter, and the rotating hole and the reset member are both located in the reset groove.

[0012] With this arrangement, after the spring is placed in the reset groove, only a small portion of the spring is exposed to the outside, ensuring that it can be compressed, and the remaining portion does not take up space, thereby reducing the volume.

[0013] Furthermore, a limiting groove is provided on the side of the shielding cover facing away from the main body of the electric meter. The driving head is in an elongated shape. When the driving head rotates, it swings between the two sides of the limiting groove. The angle between the two sides of the limiting groove is 90 degrees.

[0014] With this arrangement, the limit slot can limit the rotation angle of the drive head. When the elongated drive head is in the extreme position, it will fit into one of the side edges of the limit slot, and after rotation, it will fit into one side edge. By limiting the rotation angle to 90 degrees, the connecting hole and the connecting head can be switched between complete overlap and mutual perpendicularity, ensuring that they can be removed just right during disassembly and that they are more stable after installation.

[0015] Furthermore, the height of the driving head is greater than the depth of the limiting groove.

[0016] With this arrangement, the drive head will always protrude a little, making it easier for the user to turn and operate.

[0017] Furthermore, a push rod is provided on the side of the shielding cover facing the meter body, the rotating hole is provided through the axis position of the push rod, and the push rod is provided in contact with the meter body when the meter body and the shielding cover are connected.

[0018] With this arrangement, the push rod will support the meter body after installation, which is very stable. The quick-release rod will rotate in the push rod, and the rotation process is also more stable. The push rod can also serve as a guide to avoid position displacement.

[0019] Furthermore, a positioning rod is provided on the side of the shielding cover facing the electricity meter body, and the electricity meter body is provided with a positioning hole adapted to the positioning rod.

[0020] With this arrangement, after the shielding cover is installed, the positioning rod will also be inserted into the positioning hole, so that the positioning rod and the quick release rod can cooperate to achieve a double positioning effect, which is more stable.

[0021] Furthermore, the driving head is provided with a square hole, and the quick-release rod is provided with a square head adapted to the square hole.

[0022] With this arrangement, the drive head and the quick-release rod are separated, which facilitates the installation of the quick-release rod. After the square head is inserted into the square hole, they can be linked, and the structure is simple.

[0023] Furthermore, the driving head and the quick-release rod are glued together.

[0024] With this arrangement, glue is used for connection, which makes installation easy and the structure stable after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0026] Figure 2 It is a partial exploded view of an embodiment of the present utility model.

[0027] Figure 3 It is a partial cross-sectional view of an embodiment of the present utility model.

[0028] Figure 4 This is a schematic structural diagram of a quick-release lever according to an embodiment of the present utility model.

[0029] The meaning of the numbers in the figure are: 1. Electricity meter body, 101. Connecting port, 102. Connecting hole, 103. Connecting cavity, 104. Positioning hole, 2. Shielding cover, 201. Rotating hole, 202. Reset groove, 203. Limiting groove, 204. Pressing rod, 205. Positioning rod, 3. Quick release rod, 301. Connecting head, 302. Driving head, 3021. Square hole, 303. Square head, 4. Reset part. DETAILED DESCRIPTION

[0030] 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.

[0031] Referring to the accompanying drawings, the present invention provides the following technical solutions: a three-phase electricity meter with an easily removable 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 a plurality of connection ports 101, and the connection ports 101 are located in the shielding cover 2, and further comprising a quick-release rod 3, the shielding cover 2 is provided with a rotating hole 201 adapted to the quick-release rod 3, and the quick-release rod 3 is provided with a connecting head 301 and a driving head 302 at one end facing the electricity meter body 1 and the other end facing away from the electricity meter body 1, respectively, the connecting head 301 is long and strip-shaped, the electricity meter body 1 is provided with a connecting hole 102 adapted to the connecting head 301, and a connecting cavity 103 is provided in the connecting hole 102.

[0032] With such arrangement, when you want to disassemble, you only need to rotate the driving head 302 on the quick-release rod 3 to make the quick-release rod 3 rotate on the shielding cover 2, so that the connecting head 301 at the other end of the quick-release rod 3 will rotate accordingly. When the connecting head 301 rotates to completely overlap with the connecting hole 102, the shielding cover 2 can be directly pulled out and removed without additional tools. After the operation is completed, press the connecting head 301 into the connecting port 101, and rotate the driving head 302 again after it is fully entered to make the connecting head 301 rotate in the connecting cavity 103. After rotation, the connecting head 301 and the connecting hole 102 no longer overlap, so that the shielding cover 2 will be buckled on the electricity meter body 1 through the connecting head 301, and no tools are required. The connecting cavity 103 of the connecting hole 102 is the cavity for installing parts of the electricity meter body 1, and no deliberate processing is required.

[0033] Preferably, this embodiment further comprises a reset member 4 , which applies a force on the quick-release rod 3 toward the electric meter body 1 .

[0034] With this arrangement, the reset member 4 can add clamping force to the quick-release rod 3, so that the distance between the drive head 302 and the connector 301 can be set larger, making installation more convenient. After the connection is completed, the reset member 4 will control the connector 301 to be tightened, and the gap will not affect stability.

[0035] In this embodiment, the reset member 4 is preferably a spring sleeved outside the quick-release lever 3 , and the reset member 4 is located between the driving head 302 and the shielding cover 2 .

[0036] With such a configuration, the spring will press against the driving head 302 to exert a force thereon, and being sleeved outside the quick release rod 3 is more stable and has a simple structure.

[0037] Preferably, in this embodiment, a reset groove 202 is provided on a side of the shielding cover 2 facing away from the electricity meter body 1 , and the rotating hole 201 and the reset member 4 are both located in the reset groove 202 .

[0038] With such arrangement, after the spring is placed in the reset groove 202 , only a small portion of the spring is exposed to the outside, thereby ensuring that it can be compressed, and the remaining portion does not take up space, thereby reducing the volume.

[0039] Preferably, in this embodiment, a limiting groove 203 is provided on the side of the shielding cover 2 facing away from the electricity meter body 1, and the driving head 302 is long and narrow. When the driving head 302 rotates, it swings between the two sides of the limiting groove 203, and the angle between the two sides of the limiting groove 203 is 90 degrees.

[0040] With such a configuration, the limit slot 203 can limit the rotation angle of the drive head 302. The elongated drive head 302 will fit into one of the side edges of the limit slot 203 when in the extreme position, and will fit into one side edge after rotation. By limiting the rotation angle to 90 degrees, the connecting hole 102 and the connecting head 301 can be switched between complete overlap and mutual perpendicularity, ensuring that they can be removed just right during disassembly and have greater stability after installation.

[0041] Preferably, in this embodiment, the height of the driving head 302 is greater than the depth of the limiting groove 203 .

[0042] With this arrangement, the drive head 302 will always protrude a little, making it easier for the user to rotate and operate.

[0043] Preferably, in this embodiment, a push rod 204 is provided on the side of the shielding cover 2 facing the electricity meter body 1, and the rotating hole 201 is set through the axial position of the push rod 204. When the electricity meter body 1 and the shielding cover 2 are connected, the push rod 204 is set in contact with the electricity meter body 1.

[0044] With such arrangement, the push rod 204 will support the meter body 1 after installation, which is more stable, and the quick release rod 3 will rotate in the push rod 204, and the rotation process is also more stable. The push rod 204 can also play a guiding role to avoid position deviation.

[0045] Preferably, in this embodiment, a positioning rod 205 is provided on a side of the shielding cover 2 facing the electricity meter body 1 , and the electricity meter body 1 is provided with a positioning hole 104 adapted to the positioning rod 205 .

[0046] With this arrangement, after the shielding cover 2 is installed, the positioning rod 205 will also be inserted into the positioning hole 104, so that the positioning rod 205 and the quick release rod 3 can cooperate to achieve a double positioning effect, which is more stable.

[0047] In this embodiment, the driving head 302 is preferably provided with a square hole 3021 , and the quick-release rod 3 is provided with a square head 303 adapted to the square hole 3021 .

[0048] With this arrangement, the driving head 302 and the quick release rod 3 are separated, which facilitates the installation of the quick release rod 3. After the square head 303 is inserted into the square hole 3021, they can be linked together, and the structure is simple.

[0049] In this embodiment, the driving head 302 and the quick release rod 3 are preferably glued together. The above setting is not limiting. The driving head 302 and the quick release rod 3 can also be connected by bolts, nuts or other forms.

[0050] With this arrangement, glue is used for connection, which makes installation easy and the structure stable after connection.

[0051] 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 an easily removable 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 quick-release rod, the shielding cover is provided with a rotating hole adapted to the quick-release rod, the quick-release rod is provided with a connecting head and a driving head at one end facing the meter body and the other end facing away from the meter body, respectively, the connecting head is long and narrow, the meter body is provided with a connecting hole adapted to the connecting head, and a connecting cavity is provided in the connecting hole.

2. A three-phase electric meter with an easily detachable shielding cover according to claim 1, characterized in that: It also includes a reset component, which applies a force on the quick-release rod to move back to the main body of the electric meter.

3. The three-phase electric meter with easily detachable shielding cover according to claim 2, characterized in that: The reset member is a spring sleeved on the outside of the quick-release rod, and the reset member is located between the driving head and the shielding cover.

4. The three-phase electric meter with easily detachable shielding cover according to claim 3, characterized in that: A reset groove is provided on the side of the shielding cover facing away from the main body of the electric meter, and the rotating hole and the reset member are both located in the reset groove.

5. The three-phase electric meter with easily detachable shielding cover according to claim 4, characterized in that: A limiting groove is provided on the side of the shielding cover facing away from the main body of the electric meter. The driving head is in an elongated shape. When the driving head rotates, it swings between the two sides of the limiting groove. The angle between the two sides of the limiting groove is 90 degrees.

6. The three-phase electric meter with easily detachable shielding cover according to claim 5, characterized in that: The height of the driving head is greater than the depth of the limiting groove.

7. The three-phase electric meter with easily detachable shielding cover according to claim 1, characterized in that: A pressing rod is provided on the side of the shielding cover facing the meter body. The rotating hole is provided through the axis of the pressing rod. When the meter body and the shielding cover are connected, the pressing rod is provided in contact with the meter body.

8. The three-phase electric meter with easily detachable shielding cover according to claim 1, characterized in that: A positioning rod is provided on one side of the shielding cover facing the electricity meter body, and the electricity meter body is provided with a positioning hole adapted to the positioning rod.

9. The three-phase electric meter with easily detachable shielding cover according to claim 1, characterized in that: The driving head is provided with a square hole, and the quick-release rod is provided with a square head adapted to the square hole.

10. The three-phase electric meter with easily detachable shielding cover according to claim 9, characterized in that: The driving head and the quick-release rod are glued together.

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