A three-phase electric energy meter based on waterproof and anti-theft structure

Abstract

The present invention relates to the technical field of electric energy meters, and specifically to a three-phase electric energy meter based on a waterproof and anti-theft structure. The electric energy meter comprises a shell, an electric energy meter is fixed in the shell, the front end of the shell is elastically hinged to two protective doors, the outer side of the shell is sleeved with a movable ring, the movable ring comprises two oppositely arranged connecting rods, the ends of the two connecting rods are rotatably connected by a rotating rod, the outer edge of the rotating rod is in rolling contact with the shell, and the outer sliding sleeve of the shell is provided with a push frame for pushing the movable ring to move. When the push frame pushes the movable ring to move backward on the shell, the rotating rod rotates and winds the pull rope, thereby rotating and opening the protective door. In the present invention, when the push frame pushes the movable ring to move outside the shell, the protective door can be opened. After the protective door is opened, the pull rope is wound around the rotating rod, thereby deforming the movable ring, thereby enabling the movable ring to be positioned on the shell. The protective door can be in an open state, which is convenient for meter reading.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and in particular to a three-phase electric energy meter based on a waterproof and anti-theft structure. Background Art

[0002] An electric energy meter is an instrument used to measure electric energy, also known as an watt-hour meter, fire meter, or kilowatt-hour meter. Currently, during the use of electric energy meters, since the electric energy meters are installed outdoors, water can easily penetrate into the electric energy meters during rainy and snowy weather, causing damage to the electronic components in the electric energy meters and reducing the service life of the electric energy meters. In order to achieve a waterproof effect, some existing electric energy meters are equipped with waterproof covers on the electric energy meters. Electric energy meters equipped with waterproof covers need to remove the waterproof covers when reading the meters, which is inconvenient to use. Generally, multiple electric energy meters are installed in one electrical box. In order to prevent the electric energy meters from being stolen, the electrical box needs to be locked to prevent theft. However, the electric energy meters in the existing electrical boxes do not have a separate anti-theft function and are less secure. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a three-phase electric energy meter with anti-theft and waterproof functions, which is convenient for positioning the protective door when reading the meter, thereby facilitating meter reading.

[0004] In order to achieve the above object, the technical solution provided by the present invention is:

[0005] The outer cover is fixed with a button bar, and the button bar is fixed with a button bar, and the button bar is closed by a button bar. The button bar is closed by a button bar, and the button bar is closed by a button bar.

[0006] Specifically, the protective door is connected to the shell through a spring hinge, and the two protective doors are locked by an anti-theft lock.

[0007] Specifically, the pushing frame includes two parallel frames, and a support plate corresponding to the pull rope is provided on the outside of the pushing frame. The four corners of the support plate are fixedly connected to the two frames through support rods. Disconnection grooves corresponding to the support plates are opened on the frame, and the pull rope is located in the disconnection groove. The first T-shaped slider part outside the first T-shaped slide groove and the second T-shaped slider part outside the second T-shaped slide groove are located in the gap between the two frames.

[0008] Specifically, a handle is fixed on the support plate.

[0009] Specifically, a pull ring is fixed on the protective door, one end of a pull rope is fixedly connected to the pull ring, and the other end of the pull rope is fixedly connected to the rotating rod.

[0010] Specifically, a first friction layer is fixed on the end surface of the first clamping plate of the first T-shaped slider facing away from the housing, and a second friction layer is fixed on the end surface of the second clamping plate of the second T-shaped slider facing the housing.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, when the pushing frame pushes the movable ring to move outside the shell, the protective door can be opened. After the protective door is opened, the pull rope is wrapped around the rotating rod to deform the movable ring, so that the movable ring can be positioned on the shell. The protective door can be in an open state, which is convenient for meter reading.

[0013] The electric energy meter has waterproof and independent anti-theft functions, which can increase the service life of the electric energy meter. The electric energy meter has good anti-theft performance when installed outdoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional view of the present invention.

[0015] Figure 2 This is a separate view of the housing and push frame.

[0016] Figure 3 This is a cross-sectional view of the first T-shaped sliding block and the first T-shaped sliding groove.

[0017] Figure 4 Schematic diagram of the connection between the movable ring, the first T-shaped slider and the second T-shaped slider.

[0018] The names of the parts in the accompanying drawings are:

[0019] 1. Housing; 2. Protective door; 3. Movable ring; 31. Rotating rod; 32. Connecting rod; 4. First T-shaped slider; 41. First clamping plate; 5. Second T-shaped slider; 51. Second clamping plate; 6. First T-shaped chute; 7. Second T-shaped chute; 8. First friction layer; 9. Second friction layer; 10. Pull ring; 11. Pull rope; 12. Push frame; 121. Frame; 122. Disconnection groove; 123. Support plate; 124. Support rod; 13. Handle. DETAILED DESCRIPTION

[0020] like Figures 1-4 As shown, a three-phase electricity meter with a waterproof and anti-theft structure includes a housing 1, in which the electricity meter is fixed. Two protective doors 2 are elastically hinged at the front end of the housing 1, and the protective doors 2 are connected to the housing 1 via spring hinges. The two protective doors 2 are locked with anti-theft locks. A movable ring 3 is provided on the outside of the housing 1.

[0021] The movable ring 3 includes two opposing connecting rods 32, each rotatably connected by a rotating rod 31. The rotating rod 31 corresponds to the protective door 2, and its outer edge is in rolling contact with the housing 1. A first T-shaped slider 4 is rotatably connected to the rotating rod 31, sliding within a first T-shaped slot 6 in the housing 1. A first friction layer 8 is secured to the end surface of the first retaining plate 41 of the first T-shaped slider 4, facing away from the housing 1.

[0022] The connecting rods 32 are each fixed with a second T-shaped slider 5, which is slidably disposed in a second T-shaped slot 7 on the housing 1. A second friction layer 9 is fixed to the end surface of the second clamping plate 51 of the second T-shaped slider 5 facing the housing 1.

[0023] The rotating rod 31 is connected to the protective door 2 on one side via a pull cord 11. A pull ring 10 is fixed to the protective door 2. One end of the pull cord 11 is fixedly connected to the pull ring 10, and the other end of the pull cord 11 is fixedly connected to the rotating rod 31. A push frame 12 is provided on the outer sliding sleeve of the housing 1 to push the movable ring 3. As the push frame 12 pushes the movable ring 3 backward on the housing 1, the rotating rod 31 rotates and wraps around the pull cord 11, causing the protective door 2 to rotate open.

[0024] The push frame 12 comprises two parallel frames 121. A support plate 123 corresponding to the pull cord 11 is located on the outside of the push frame 12. The handle 13 is fixed to the support plate 123. The four corners of the support plate 123 are fixedly connected to the two frames 121 via support rods 124. Each frame 121 is provided with a disconnect groove 122 corresponding to the support plate 123. The pull cord 11 is positioned within the disconnect groove 122. The portion of the first T-shaped slider 4 outside the first T-shaped chute 6 and the portion of the second T-shaped slider 5 outside the second T-shaped chute 7 are located in the gap between the two frames 121.

[0025] In the present invention, the two protective doors 2 can block the front end of the shell 1, and can play a waterproof role for the electric energy meter in the shell 1. At the same time, the two protective doors 2 can be locked by anti-theft locks, and can protect the electric energy meter in the shell 1 from being stolen.

[0026] When it is necessary to open the protective door 2 to inspect or read the electric energy meter, the handle 13 is held to move the push frame 12 toward the rear side on the shell 1. During the movement of the push frame 12 toward the rear side on the shell 1, the push frame 12 pushes the movable ring 3 to move toward the rear side on the shell 1. During the movement of the movable ring 3 toward the rear side on the shell 1, under the action of the friction between the rotating rod 31 and the shell 1, the rotating rod 31 rotates and winds the pull rope 11. At the same time, the first T-shaped slider 4 and the second T-shaped slider 5 slide in the first T-shaped slot 6 and the second T-shaped slot 7, respectively. During the process of the rotating rod 31 rotating and winding the pull rope 11, under the action of the pulling force of the pull rope 11, the protective door 2 gradually rotates open. As the number of turns of the drawstring 11 wrapped around the rotating rod 31 increases, the portion of the drawstring 11 wrapped around the rotating rod 31 causes the rotating rod 31 to undergo elastic deformation. Specifically, the rotating rod 31 wrapped with the drawstring 11 expands toward the outside of the housing 1. During this expansion, the first T-shaped slider 4 moves with the rotating rod 31 toward the outside of the housing 1. As the first T-shaped slider 4 moves with the rotating rod 31 toward the outside of the housing 1, the friction between the first friction layer 8 on the first clamping plate 41 and the wall of the first T-shaped chute 6 increases. As the rotating rod 31 wraps around the drawstring 11 and expands toward the outside of the housing 1, the connecting rod 32 drives the second T-shaped slider 5 toward the inside of the housing 1. During this movement, the friction between the second friction layer 9 on the second clamping plate 51 and the wall of the second T-shaped chute 7 increases. When the protective door 2 is fully opened by rotating 90 degrees, the combined friction between the first T-shaped slider 4 and the wall of the first T-shaped chute 6, and the friction between the second T-shaped slider 5 and the wall of the second T-shaped chute 7, exceeds the spring force of the spring hinge. At this point, the protective door 2 remains open, making it easy to read or inspect the energy meter.

[0027] When the protective door 2 is to be closed, the push frame 12 is moved forward on the housing 1 , the pull rope 11 is gradually unwound from the rotating rod 31 , and the protective door 2 is gradually closed under the elastic force of the spring hinge.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-phase electric energy meter based on a waterproof and anti-theft structure, comprising a housing (1), wherein the electric energy meter is fixed in the housing (1), and the front end of the housing (1) is elastically hinged with two protective doors (2), characterized in that: The outer side of the housing (1) is provided with a movable ring (3), which includes two connecting rods (32) arranged opposite to each other. The ends of the two connecting rods (32) are rotatably connected through a rotating rod (31). The rotating rod (31) corresponds to the protective door (2). The outer edge of the rotating rod (31) is in rolling contact with the housing (1). A first T-shaped slider (4) is rotatably connected to the rotating rod (31). The first T-shaped slider (4) is slidably arranged in a first T-shaped slot (6) on the housing (1); a second T-shaped slider (5) is fixed to the connecting rod (32), and the second T-shaped slider (5) is slidably arranged in a second T-shaped slot (7) on the housing (1); The movable rod (31) is connected to the protective door (2) on one side thereof via a pull rope (11); a push frame (12) for pushing the movable ring (3) to move is provided on the outer sliding sleeve of the housing (1); when the push frame (12) pushes the movable ring (3) to move backward on the housing (1), the rotating rod (31) rotates and winds the pull rope (11), thereby causing the protective door (2) to rotate and open; a first friction layer (8) is fixed on the end face of the first clamping plate (41) of the first T-shaped slider (4) facing away from the housing (1); a second friction layer (9) is fixed on the end face of the second clamping plate (51) of the second T-shaped slider (5) facing the housing (1).

2. A three-phase electric energy meter based on a waterproof and anti-theft structure according to claim 1, characterized in that: The protective door (2) is connected to the housing (1) via a spring hinge, and the two protective doors (2) are locked via an anti-theft lock.

3. A three-phase electric energy meter based on a waterproof and anti-theft structure according to claim 1, characterized in that: The pushing frame (12) comprises two parallel frame bodies (121), a support plate (123) corresponding to the pull rope (11) is provided on the outside of the pushing frame (12), the four corners of the support plate (123) are fixedly connected to the two frame bodies (121) through support rods (124), and a disconnecting groove (122) corresponding to the support plate (123) is provided on the frame body (121), the pull rope (11) is located in the disconnecting groove (122), and the first T-shaped slider (4) outside the first T-shaped slide groove (6) and the second T-shaped slider (5) outside the second T-shaped slide groove (7) are located in the gap between the two frame bodies (121).

4. A three-phase electric energy meter based on a waterproof and anti-theft structure according to claim 3, characterized in that: A handle (13) is fixed on the support plate (123).

5. A three-phase electric energy meter based on a waterproof and anti-theft structure according to claim 1, characterized in that: A pull ring (10) is fixed on the protective door (2), one end of a pull rope (11) is fixedly connected to the pull ring (10), and the other end of the pull rope (11) is fixedly connected to the rotating rod (31).

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