An electric energy meter

Abstract

The present invention discloses an electric energy meter, comprising a mounting plate and a meter body, wherein an upper connecting frame and a lower connecting frame are fixedly provided on the right side surface of the mounting plate, a plurality of mutually insulated conductive slide rails are fixedly provided on the right side of the lower connecting frame, a plurality of wires connected to the conductive slide rails are provided in the lower connecting frame; a contact box is hingedly connected to the mounting plate at the right side of the lower connecting frame, a track groove is provided on the front and rear inner side walls of the contact box, a first slide bar and a second slide bar are slidably connected between the two track grooves, a plurality of mutually insulated first contacts are hingedly connected to the first slide bar, a plurality of mutually insulated second contacts are hingedly connected to the second slide bar, a connecting rod electrically connected to the first contact and the second contact is provided between the first slide bar and the second slide bar; a plug-in end of the meter body is provided with a socket and a clamping assembly for inserting the first contact or the second contact; the electric energy meter is not only simple in structure, but also convenient for online replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and in particular to an electric energy meter. Background Art

[0002] An electric energy meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, or a kilowatt-hour meter. It refers to an instrument that measures various electrical quantities. In the prior art, if an electric energy meter needs to be repaired or replaced, it is often necessary to disassemble it. For the safety of the repair personnel, the power must be cut off. As living standards improve, many electrical appliances consume a lot of electricity and run 24 hours a day. Sudden power outages can easily damage electrical appliances, so power outage maintenance will seriously affect people's daily lives. If the wires are temporarily short-circuited on the electric energy meter connector, although this short-circuiting method can keep the power on, it is troublesome to operate and very unsafe. Summary of the invention

[0003] The object of the present invention is to provide an electric energy meter which is not only simple in structure but also convenient for online replacement.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric energy meter, comprising a mounting plate and a meter body, an upper connecting frame and a lower connecting frame are fixedly provided on the right side surface of the mounting plate, a plurality of mutually insulated conductive slide rails are fixedly provided on the right side of the lower connecting frame, a plurality of wires connected to the conductive slide rails are provided in the lower connecting frame; a shock box is hingedly connected to the mounting plate on the right side of the lower connecting frame, the front and rear inner side walls of the shock box are both provided with track grooves, a first slide bar and a second slide bar are slidably connected between the two track grooves, a plurality of mutually insulated first contacts are hingedly connected to the first slide bar, a plurality of mutually insulated second contacts are hingedly connected to the second slide bar, and the first slide bar is provided with a plurality of mutually insulated second contacts. A connecting rod electrically connected to the first contact and the second contact is provided between the first contact and the second slide rod, and at least one of the first contact and the second contact is in contact with the conductive slide rail; when the shock box is closed, the first contact and the second contact are in a colinear position, and when the shock box is opened, the first contact and the second contact are in a perpendicular position to each other; the plug-in end of the meter body is provided with a socket for inserting the first contact or the second contact and a clamping assembly, and the clamping assembly is used to clamp and fix the first contact or the second contact inserted into the socket; a card slot is provided on the right side of the upper connecting frame, and a snap-fit ​​assembly for snapping into the card slot is provided on the meter body; after the meter body is installed in place, the snap-fit ​​assembly snaps into the card slot.

[0005] Furthermore, the right side surface of the mounting plate is provided with a convex plate extending to the right on both the front and rear sides of the lower connecting frame, and the front and rear sides of the electric shock box are provided with a convex shaft rotatably connected in the convex plate.

[0006] Furthermore, a connecting block is provided at the end of the convex plate extending out of the convex shaft located on the rear side of the shock box, a positioning rod is slidably connected in the front-to-back direction in the connecting block, a sliding groove is provided on the outer side of the positioning rod in the connecting block, a boss slidably connected in the sliding groove is provided on the outer side of the positioning rod, a first spring for forcing the boss to move forward is provided in the sliding groove, the rear end of the positioning rod extends out of the connecting block and is provided with a first convex ball, a first positioning hole and a second positioning hole are provided on the rear side of the shock box, when the shock box is closed, the front end of the positioning rod extends into the first positioning hole, and when the shock box is opened, the positioning rod extends into the second positioning hole.

[0007] Furthermore, the track groove includes a first straight groove and a second straight groove that are perpendicular and connected to each other, and an arc groove for connecting the first straight groove and the second straight groove, and the arc groove is centered on the rotating axis of the shock box; when the shock box is closed, if the first slide bar is located at the connection between the first straight groove and the second straight groove, the second slide bar is located at the connection between the arc groove and the first straight groove; and when the shock box is flipped from the closed position to the open position, the first slide bar is located at the connection between the first straight groove and the second straight groove, and the second slide bar moves to the connection between the arc groove and the second straight groove; when the shock box is closed, if the second slide bar is located at the connection between the first straight groove and the second straight groove, the first slide bar is located at the connection between the arc groove and the first straight groove; and when the shock box is flipped from the closed position to the open position, the second slide bar is located at the connection between the first straight groove and the second straight groove, and the first slide bar moves to the connection between the arc groove and the second straight groove.

[0008] Furthermore, an elastic clip is fixedly provided on the right inner wall of the shock box, and the elastic clip is used to drive the first contact or the second contact to flip to a horizontal position when the shock box is flipped from a closed position to an open position.

[0009] Furthermore, a mounting cavity connected to the socket is provided in the plug-in end of the meter body, and a plurality of contact clamps corresponding to the first contact and the second contact are provided in the mounting cavity. When the meter body is installed, the first contact or the second contact passes through the mounting cavity and is inserted into the contact clamp.

[0010] Furthermore, the clamping assembly includes a clamping block, which is slidably connected to the plug-in end of the meter body along the front-to-back direction, and a plurality of clamping grooves for the first contact or the second contact to extend into are arranged side by side in the clamping block, each clamping groove is provided with a first inclined surface, and a spring groove connected to the mounting cavity is provided in the meter body, a baffle extending into the spring groove is provided on the side of the clamping block, and a second spring for forcing the baffle to drive the clamping block to move backward is provided in the spring groove, and the rear end of the clamping block extends out of the meter body, and pressing the rear end of the clamping block pushes the clamping block to move forward.

[0011] Furthermore, the snap-fit ​​assembly includes a lock hook, and a mounting groove is provided on the surface of the watch body in contact with the upper connecting frame. The lock hook is hinged in the mounting groove, and a torsion spring is provided in the mounting groove for forcing the lock hook to flip toward the plug-in end of the watch body. After the watch body is installed in place, the lock hook is inserted into the slot, and when the watch body is pushed to move vertically upward, the lock hook disengages from the slot.

[0012] Beneficial Effects

[0013] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0014] 1. By using the contact clamp with an angle, the electric energy meter can be installed by simply inserting the first contact or the second contact into the contact clamp of the meter body, which is convenient and quick;

[0015] 2. By using the cooperation between the track groove and the first slide bar and the first slide bar, and the cooperation between the first contact and the second contact and the conductive slide rail, the electric shock box can be connected to the two meter bodies at the same time when it is opened, and the first contact and the second contact are energized at the same time when the position of the electric shock box changes, thereby realizing the replacement of the electric energy meter without power failure;

[0016] 3. By using a shock box with an elastic clip, the first contact or the second contact can be clipped out when the shock box is opened, so that a new meter body can be inserted into the first contact or the second contact, which is safe, convenient, fast and efficient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of the present invention;

[0018] Figure 2 For the present invention Figure 1 Sectional view in the AA direction;

[0019] Figure 3 For the present invention Figure 2 Cross-sectional view in the BB direction;

[0020] Figure 4 For the present invention Figure 3 Cross-sectional view in CC direction;

[0021] Figure 5 For the present invention Figure 2 Cross-sectional view in the middle DD direction;

[0022] Figure 6 A cross-sectional view of the electric shock box of the present invention when it is opened;

[0023] Figure 7 A cross-sectional view of the new meter body of the present invention when installed;

[0024] Figure 8It is a cross-sectional view of the meter body to be disassembled and the second contact of the present invention when it is separated;

[0025] Fig. 9 It is a cross-sectional view of the meter body to be disassembled of the present invention. DETAILED DESCRIPTION

[0026] See also Figure 1-9 As shown, an electric energy meter includes a mounting plate 10 and a meter body 1, an upper connecting frame 2 and a lower connecting frame 3 are fixedly provided on the right side surface of the mounting plate 10, a plurality of mutually insulated conductive slide rails 5 are fixedly provided on the right side of the lower connecting frame 3, and a plurality of wires 4 connected to the conductive slide rails 5 are provided in the lower connecting frame 3; the mounting plate 10 is hinged with a contact box 8 on the right side of the lower connecting frame 3, and the front and rear inner side walls of the contact box 8 are both provided with track grooves, and a first slide bar 15b and a second slide bar 15a are slidably connected between the two track grooves, a plurality of mutually insulated first contacts 6a are hinged on the first slide bar 15b, a plurality of mutually insulated second contacts 6b are hinged on the second slide bar 15a, and a contact 6a connected to the first slide bar 15b and the second slide bar 15a is provided between the first slide bar 15b and the second slide bar 15a A connecting rod 7 electrically connecting a first contact 6a and a second contact 6b, wherein at least one of the first contact 6a and the second contact 6b is in contact with the conductive slide rail 5; when the shock box 8 is closed, the first contact 6a and the second contact 6b are in a colinear position, and when the shock box 8 is opened, the first contact 6a and the second contact 6b are in a mutually perpendicular position; the plug-in end of the meter body 1 is provided with a socket 102 for inserting the first contact 6a or the second contact 6b and a clamping assembly, and the clamping assembly is used to clamp and fix the first contact 6a or the second contact 6b inserted into the socket 102; a card slot 2a is provided on the right side of the upper connecting frame 2, and a snap-fit ​​assembly for snapping into the card slot 2a is provided on the meter body 1; after the meter body 1 is installed in place, the snap-fit ​​assembly snaps into the card slot 2a.

[0027] The right side surface of the mounting plate 10 is provided with a convex plate 10a extending rightward at the front and rear sides of the lower connecting frame 3, and the front and rear sides of the electric shock box 8 are provided with a convex shaft 83 rotatably connected in the convex plate 10a. The end of the convex shaft 83 located on the rear side of the electric shock box 8 that extends out of the convex plate 10a is provided with a connecting block 8a, and a positioning rod 13 is slidably connected in the front-to-back direction in the connecting block 8a, and a sliding groove 8a1 is provided on the outer side of the positioning rod 13 in the connecting block 8a, and a boss 132 slidably connected in the sliding groove 8a1 is provided on the outer side of the positioning rod 13, and a first spring 12 for forcing the boss 132 to move forward is provided in the sliding groove 8a1, and the rear end of the positioning rod 13 extends out of the connecting block 8a and is provided with a first convex ball 131, and a first positioning hole 10a1 and a second positioning hole 10a2 are provided on the rear side of the electric shock box 8, and when the electric shock box 8 is closed, the front end of the positioning rod 13 extends into the first positioning hole 10a1, and when the electric shock box 8 is opened, the positioning rod 13 extends into the second positioning hole 10a2.

[0028] The track groove includes a first straight groove 81 and a second straight groove 8b which are perpendicular to each other and connected, and an arc groove 82 for connecting the first straight groove 81 and the second straight groove 8b, wherein the arc groove 82 is centered on the rotation axis of the electric shock box 8; when the electric shock box 8 is closed, if the first slide bar 15b is located at the connection between the first straight groove 81 and the second straight groove 8b, then the second slide bar 15a is located at the connection between the arc groove 82 and the first straight groove 81; and when the electric shock box 8 is flipped from the closed position to the open position, the first slide bar 15b is located at the connection between the first straight groove 81 and the second straight groove 8b. The second slide bar 15a moves to the connection between the arc groove 82 and the second straight groove 8b; when the electric shock box 8 is closed, if the second slide bar 15a is located at the connection between the first straight groove 81 and the second straight groove 8b, the first slide bar 15b is located at the connection between the arc groove 82 and the first straight groove 81; and when the electric shock box 8 is flipped from the closed position to the open position, the second slide bar 15a is located at the connection between the first straight groove 81 and the second straight groove 8b, and the first slide bar 15b moves to the connection between the arc groove 82 and the second straight groove 8b. An elastic clip is fixedly provided on the right inner side wall of the electric shock box 8, and the elastic clip is used to drive the first contact 6a or the second contact 6b to flip to a horizontal position when the electric shock box 8 is flipped from the closed position to the open position.

[0029] The plug-in end of the meter body 1 is provided with an installation cavity 103 connected to the socket 102, and the installation cavity 103 is provided with a plurality of contact clamps 1c corresponding to the first contact 6a and the second contact 6b one by one. When the meter body 1 is installed, the first contact 6a or the second contact 6b passes through the installation cavity 103 and is inserted into the contact clamp 1c.

[0030] The clamping assembly includes a clamping block 91, which is slidably connected to the plug-in end of the meter body 1 along the front-to-back direction. A plurality of clamping grooves 92 for the first contact 6a or the second contact 6b to extend into are arranged side by side in the clamping block 91, and a first inclined surface 9a is provided at each clamping groove 92. A spring groove 9 connected to the mounting cavity 103 is provided in the meter body 1. A baffle plate 93 extending into the spring groove 9 is provided on the side of the clamping block 91. A second spring 11 for forcing the baffle plate 93 to drive the clamping block 91 to move backward is provided in the spring groove 9. The rear end of the clamping block 91 extends out of the meter body 1, and pressing the rear end of the clamping block 91 pushes the clamping block 91 to move forward.

[0031] The snap-fit ​​assembly includes a lock hook 1a, and a mounting groove 101 is provided on the surface of the watch body 1 that contacts the upper connecting frame 2. The lock hook 1a is hinged in the mounting groove 101. A torsion spring 1b is provided in the mounting groove 101 for forcing the lock hook 1a to flip toward the plug-in end of the watch body 1. After the watch body 1 is installed in place, the lock hook 1a is inserted into the slot 2a. When the watch body 1 is pushed to move vertically upward, the lock hook 1a is disengaged from the slot 2a.

[0032] like Figure 1 The figure shows the initial state of the present invention. When the meter body 1 works normally, the four external wires 4 are respectively connected to the four mutually insulated conductive slide rails 5, the clamping block 91 clamps the second contact 6b through the action of the second spring 11, and the four second contacts 6b are respectively connected to the contact clamps 1c in the meter body 1, so that the meter body 1 can work normally.

[0033] When the meter body 1 fails or needs to be repaired, in this embodiment, the meter body 1 is the meter body to be disassembled; first, the first spring 12 is overcome to pull the positioning rod 13 outward to make it withdraw from the first positioning hole 10a1, and the shock box 8 is rotated to the open position. Under the action of the first spring 12, the positioning rod 13 enters the second positioning hole 10a2 to position the shock box 8 (such as Figure 6 As shown in the figure, due to the action of the elastic clip, the first contact 6a is also driven to rotate when the electric shock box 8 is turned over, so that it becomes horizontal and faces right, and the plug-in end socket 102 of the new meter body is aligned with the first contact 6a and moves to the left, so that the first contact 6a can be inserted into the new meter body. Due to the action of the first inclined surface 9a, the first contact 6a can overcome the second spring 11 to push the clamping block 91 and be inserted into the new meter body. When the new meter body is inserted into place, the first contact 6a is connected with the contact clamp 1c, and the new meter body is powered on and works normally (as shown in the figure). Figure 7 The second spring 11 is overcome to press the clamping block 91 on the meter body to be removed inward to release the second contact 6b, and the new meter body is pulled outward. Due to the guidance of the first straight slot 81 and the action of the connecting rod 7, the second slide bar 15a moves downward, and the first slide bar 15b moves rightward, driving the second contact 6b to push the meter body to be removed downward. Since the connecting rod 7 is conductive, the first contact 6a can also work normally even if it is separated from the conductive slide rail 5 (as shown in FIG. Figure 8 As shown); push the watch body to be removed upward so that the lock hook 1a is disengaged from the card slot 2a, remove the watch body to be removed, lift the new watch body upward, so that the first slide bar 15b moves upward along the arc groove 82, and overcomes the torsion spring 1b to push the lock hook 1a into the card slot 2a; overcome the first spring 12 to pull the positioning rod 13 to withdraw it from the second positioning hole 10a2, rotate the shock box 8 to the covering position, and under the action of the first spring 12, the positioning rod 13 enters the first positioning hole 10a1 to position the shock box 8, (as shown Figure 1 Complete the online replacement of the meter body.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electric energy meter, characterized in that: The table comprises a mounting plate and a meter body, wherein an upper connecting frame and a lower connecting frame are fixedly provided on the right side surface of the mounting plate, a plurality of mutually insulated conductive slide rails are fixedly provided on the right side of the lower connecting frame, and a plurality of wires connected to the conductive slide rails are provided in the lower connecting frame; a shock box is hingedly connected to the mounting plate on the right side of the lower connecting frame, and a track groove is provided on the front and rear inner side walls of the shock box, a first slide bar and a second slide bar are slidably connected between the two track grooves, a plurality of mutually insulated first contacts are hingedly connected to the first slide bar, a plurality of mutually insulated second contacts are hingedly connected to the second slide bar, and a contact connected to the first contact is provided between the first slide bar and the second slide bar. A connecting rod electrically connected to the first contact and the second contact, at least one of the first contact and the second contact is in contact with the conductive slide rail; when the shock box is closed, the first contact and the second contact are in a colinear position, and when the shock box is opened, the first contact and the second contact are in a mutually perpendicular position; the plug-in end of the meter body is provided with a socket for inserting the first contact or the second contact and a clamping assembly, and the clamping assembly is used to clamp and fix the first contact or the second contact inserted into the socket; a card slot is provided on the right side of the upper connecting frame, and a snap-fit ​​assembly for snapping into the card slot is provided on the meter body; after the meter body is installed in place, the snap-fit ​​assembly is snapped into the card slot; The track groove includes a first straight groove and a second straight groove which are perpendicular and connected to each other, and an arc groove for connecting the first straight groove and the second straight groove, wherein the arc groove is centered on the rotation axis of the shock box; when the shock box is closed, if the first slide bar is located at the connection between the first straight groove and the second straight groove, the second slide bar is located at the connection between the arc groove and the first straight groove; and when the shock box is flipped from the closed position to the open position, the first slide bar is located at the connection between the first straight groove and the second straight groove, and the second slide bar moves to the connection between the arc groove and the second straight groove; when the shock box is closed, if the second slide bar is located at the connection between the first straight groove and the second straight groove, the first slide bar is located at the connection between the arc groove and the first straight groove; and when the shock box is flipped from the closed position to the open position, the second slide bar is located at the connection between the first straight groove and the second straight groove, and the first slide bar moves to the connection between the arc groove and the second straight groove; An elastic clip is fixedly provided on the right inner side wall of the shock box, and the elastic clip is used to drive the first contact or the second contact to flip to a horizontal position when the shock box is flipped from a closed position to an open position.

2. The electric energy meter according to claim 1, characterized in that: The right side surface of the mounting plate is provided with a convex plate extending rightward at the front and rear sides of the lower connecting frame, and the front and rear sides of the electric shock box are provided with a convex shaft rotatably connected in the convex plate.

3. The electric energy meter according to claim 2, characterized in that: A connecting block is provided at the end of the convex plate extending out of the convex shaft located on the rear side of the electric shock box, a positioning rod is slidably connected in the front-to-back direction in the connecting block, a sliding groove is provided on the outer side of the positioning rod in the connecting block, a boss slidably connected in the sliding groove is provided on the outer side of the positioning rod, a first spring for forcing the boss to move forward is provided in the sliding groove, the rear end of the positioning rod extends out of the connecting block and is provided with a first convex ball, a first positioning hole and a second positioning hole are provided on the rear side of the electric shock box, when the electric shock box is closed, the front end of the positioning rod extends into the first positioning hole, and when the electric shock box is opened, the positioning rod extends into the second positioning hole.

4. The electric energy meter according to claim 3, characterized in that: The plug-in end of the meter body is provided with an installation cavity connected to the socket, and the installation cavity is provided with a plurality of contact clamps corresponding to the first contact and the second contact one by one. When the meter body is installed, the first contact or the second contact passes through the installation cavity and is inserted into the contact clamp.

5. The electric energy meter according to claim 4, characterized in that: The clamping assembly includes a clamping block, which is slidably connected to the plug-in end of the meter body along the front-to-back direction. A plurality of clamping grooves for the first contact or the second contact to extend into are arranged side by side in the clamping block, and a first inclined surface is provided at each clamping groove. A spring groove connected to the mounting cavity is provided in the meter body, a baffle extending into the spring groove is provided on the side of the clamping block, and a second spring for forcing the baffle to drive the clamping block to move backward is provided in the spring groove. The rear end of the clamping block extends out of the meter body, and pressing the rear end of the clamping block pushes the clamping block to move forward.

6. The electric energy meter according to claim 5, characterized in that: The snap-fit ​​assembly includes a lock hook, and a mounting groove is provided on the surface of the watch body that contacts the upper connecting frame. The lock hook is hinged in the mounting groove, and a torsion spring is provided in the mounting groove for forcing the lock hook to flip toward the plug-in end of the watch body. After the watch body is installed in place, the lock hook is inserted into the slot, and when the watch body is pushed to move vertically upward, the lock hook is disengaged from the slot.

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