Electric energy meter with window convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of electric energy meter, concretely relates to an electric energy meter convenient to dismount window body, including the cover of electric energy meter body, the cover is connected with the independent window body vertical sliding, the independent window body side part is equipped with the elastic locking assembly laterally, including the recess that opens in the independent window body side part, the locking rod that slides in the groove, the reset spring that applies the horizontal outward elasticity to the locking rod and the locking hole that is communicated with the recess on the cover, the locking rod inner end is equipped with the moving magnet, the recess groove bottom is fixed with the fixed magnet, and the adsorption force of both is greater than the reset spring elasticity, the locking rod is drawn into the locking hole when fastening, and the locking rod is retracted and two magnets are adsorbed when being detachable. The utility model can change the window without disassembling the whole cover, and can automatically keep the state after unlocking.

Description

Technical Field

[0001] This utility model belongs to the field of electricity meter technology, specifically relating to an electricity meter with an easy-to-disassemble and assemble window. Background Technology

[0002] An electricity meter is a device used in a power system to measure the amount of electricity consumed. It is widely used in residential buildings and industrial and commercial sites. Its cover is used to protect the internal metering elements, and the observation window is used to enable daily meter reading and inspection.

[0003] Currently, the observation window of most electricity meters is integrally molded with the meter cover and cannot be disassembled separately. While some existing technologies attempt to use an independent window structure, they mostly rely on screws or ordinary clips for fixing. Disassembly and assembly require common tools such as screwdrivers, and once unlocked, the window cannot remain unlocked. Users must continuously press the clips with one hand while simultaneously disassembling the window with the other, which is inconvenient. Furthermore, ordinary clip structures are prone to loosening due to vibration, failing to meet the requirements for long-term stable use of outdoor electricity meters. Therefore, there is an urgent need for an electricity meter where the observation window can be disassembled and replaced independently without removing the entire meter cover, and where the unlocked window automatically retains its position. Utility Model Content

[0004] This invention solves the problems mentioned in the background art by setting an independent window that can be vertically slidably connected on the cover, and setting an elastic locking component with magnetic retention function on the side of the independent window, so as to realize the quick assembly and disassembly of the independent window and maintain its status.

[0005] The technical solution of this utility model is implemented as follows: an energy meter that is easy to install and remove includes a meter cover that fits onto the energy meter body, and further includes: An independent window, vertically slidingly connected to the cover; At least one set of elastic locking components is laterally disposed on the side of the independent window, including a groove opened on the side of the independent window, a locking rod slidably connected in the groove, a return spring that applies a lateral outward elastic force to the locking rod, and a locking hole opened on the cover and laterally communicating with the groove; The magnetic attraction assembly includes a moving magnet located at the inner end of the locking rod and a fixed magnet fixed to the bottom of the groove, wherein the attraction force of the moving magnet and the fixed magnet is greater than the elastic force of the return spring. In the fastened state, the locking rod extends laterally into the locking hole; in the detachable state, the locking rod retracts into the groove and the moving magnet and the fixed magnet are attracted and fixed together.

[0006] The present invention is further configured such that guide ribs are integrally formed on the left and right sides of the independent window, and guide grooves are provided on the cover corresponding to the positions of the guide ribs. The guide ribs and the guide grooves are slidably engaged to form the vertical sliding connection.

[0007] The present invention is further configured such that at least two sets of the elastic locking components are provided on the left and right sides of the independent window respectively, and the elastic locking components on both sides are arranged symmetrically.

[0008] The present invention is further configured such that the elastic locking components on one side of the independent window are arranged vertically, the outer diameter of the upper locking rod is smaller than the outer diameter of the lower locking rod, and the diameter of the upper locking hole correspondingly provided on the cover is smaller than the diameter of the lower locking hole.

[0009] The present invention is further provided that the outer end of the locking rod facing the locking hole is provided with a pull ring.

[0010] The present invention is further configured such that a flip-open protective cover is hinged to the top of the cover corresponding to the vertical insertion position of the independent window, and the protective cover is used to cover the insertion area of ​​the independent window.

[0011] The present invention is further configured to include a special operating tool for use with the energy meter, one end of which is an inner push part for laterally pushing the locking rod, and the other end is an outer hook part for hooking the pull ring.

[0012] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. The vertical sliding connection between the independent window and the meter cover, combined with the quick locking and unlocking of the horizontal elastic locking component, improves the efficiency of replacing the electricity meter window and performing internal maintenance.

[0013] 2. By using the attraction between the moving magnet at the inner end of the locking rod and the fixed magnet at the bottom of the groove, the locking rod can remain unlocked without continuous pressing after retraction, thus improving the ease of operation for window assembly and disassembly.

[0014] 3. The locking rods arranged vertically on one side of the independent window feature a differentiated size design with a thinner top and a thicker bottom, which, together with the locking holes of the corresponding diameter on the cover, improves the alignment accuracy and assembly reliability of the vertical insertion of the window. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the special operating tool of this utility model.

[0016] The attached diagram is labeled as follows: 1. Cover; 2. Independent window; 3. Elastic locking assembly; 30. Groove; 31. Locking rod; 32. Return spring; 33. Locking hole; 4. Magnetic assembly; 40. Moving magnet; 41. Fixed magnet; 5. Guide rib; 6. Guide groove; 7. Pull ring; 8. Protective cover; 9. Special operating tool; 90. Inward push part; 91. Outer hook part. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 : Example 1:

[0018] This embodiment provides an energy meter with an easily detachable and assembled form, including a meter cover 1 that fits onto the energy meter body, and further comprising: Independent window 2 is vertically slidably connected to the cover 1; At least one set of elastic locking components 3 are laterally arranged on the side of the independent window 2, including a groove 30 opened on the side of the independent window 2, a locking rod 31 slidably connected in the groove 30, a return spring 32 that applies a lateral outward elastic force to the locking rod 31, and a locking hole 33 opened on the cover 1 and laterally communicating with the groove 30. The magnetic attraction component 4 includes a moving magnet 40 disposed at the inner end of the locking rod 31 and a fixed magnet 41 fixed to the bottom of the groove 30. The attraction force of the moving magnet 40 and the fixed magnet 41 is greater than the elastic force of the return spring 32. In the fastened state, the locking rod 31 extends laterally into the locking hole 33, and in the detachable state, the locking rod 31 retracts into the groove 30 and the moving magnet 40 and the fixed magnet 41 are attracted and fixed.

[0019] This utility model relates to an energy meter with an easy-to-install and disassemble window, including an energy meter body and a meter cover 1 that covers the energy meter body. The front of the meter cover 1 has a rectangular mounting opening for installing an independent window 2. The independent window 2 and the meter cover 1 are detachably connected by a vertical sliding structure. The side of the independent window 2 is provided with an elastic locking component 3 for fixing the independent window 2 to the meter cover 1. The elastic locking component 3 is equipped with a magnetic suction component 4 for maintaining the unlocked state. The top of the meter cover 1 is provided with a protective cover 8 for covering the insertion and removal area of ​​the independent window 2. It also includes a special operating tool 9 for use with the energy meter.

[0020] The independent window 2 is a transparent plate structure used to observe the metering data inside the electricity meter body. A ring-shaped sealing strip made of rubber is adhered to the back perimeter of the independent window 2. When the independent window 2 is inserted into the predetermined position, the sealing strip fits tightly against the inner wall of the mounting opening of the meter cover 1, blocking rainwater and dust from entering the electricity meter. Guide ribs 5 are integrally formed on the left and right side surfaces of the independent window 2. The guide ribs 5 extend vertically along the independent window 2, and their cross-section is T-shaped, with a length equal to the side length of the independent window 2. The flange portion of the T-shaped guide rib 5 is embedded in the corresponding cavity of the guide groove 6, which restricts the displacement of the independent window 2 in a direction perpendicular to the plane of the meter cover 1, preventing the independent window 2 from detaching from the front of the meter cover 1 and allowing it to slide only vertically. Guide grooves 6 are respectively provided on the left and right inner side walls of the mounting port of the cover 1, corresponding to the positions of the guide ribs 5. The guide grooves 6 extend along the vertical direction of the cover 1. The cross-sectional shape of the guide grooves 6 is adapted to the cross-sectional shape of the guide ribs 5. The guide ribs 5 are embedded in the guide grooves 6 and can slide along the length direction of the guide grooves 6, thereby realizing the vertical insertion and removal movement of the independent window 2 relative to the cover 1.

[0021] At least one set of elastic locking components 3 is provided laterally on the side of the independent window 2. In this embodiment, two sets of elastic locking components 3 are provided on the left and right sides of the independent window 2, and the elastic locking components 3 on both sides are symmetrically arranged. The two sets of elastic locking components 3 on each side are arranged vertically along the vertical direction of the independent window 2. Each set of elastic locking components 3 includes a groove 30, a locking rod 31, a return spring 32, and a locking hole 33. The groove 30 is formed on the side surface of the independent window 2. The groove 30 is a cylindrical blind groove, and its axis is set in the horizontal direction. The locking rod 31 is a cylindrical rod. The outer diameter of the locking rod 31 is smaller than the inner diameter of the groove 30. The locking rod 31 is coaxially installed in the groove 30 and can slide back and forth along the axial direction of the groove 30. The return spring 32 is a cylindrical helical spring, sleeved on the rod body of the locking rod 31. One end of the return spring 32 abuts against the inner wall of the groove 30, and the other end abuts against the stepped surface of the locking rod 31 near the bottom of the groove 30. The return spring 32 is always in a compressed state, thus applying a lateral outward elastic force to the locking rod 31. The locking hole 33 is opened on the inner wall of the mounting opening of the cover 1. The locking hole 33 is a hole-shaped structure adapted to the shape of the groove 30. The axis of the locking hole 33 is coaxial with the axis of the corresponding groove 30. The locking hole 33 is laterally connected to the groove 30. The outer end of the locking rod 31 can extend into the locking hole 33 under the elastic force of the return spring 32.

[0022] Each set of elastic locking components 3 is equipped with a set of magnetic attraction components 4, which includes a moving magnet 40 and a fixed magnet 41. The moving magnet 40 is a cylindrical permanent magnet, which is embedded in the inner end face of the locking rod 31 near the bottom of the groove 30. The moving magnet 40 is fixed in the pre-drilled circular mounting hole at the inner end of the locking rod 31 by an interference fit, and the outer surface of the moving magnet 40 is flush with the inner end face of the locking rod 31. The fixed magnet 41 is a cylindrical permanent magnet, which is embedded in the bottom end face of the groove 30. The fixed magnet 41 is fixed in the pre-drilled circular mounting hole at the bottom of the groove 30 by an interference fit, and the outer surface of the fixed magnet 41 is flush with the bottom end face of the groove 30. The opposite end faces of the moving magnet 40 and the fixed magnet 41 are opposite magnetic poles, and they can generate a magnetic force that attracts each other. The attraction force between the moving magnet 40 and the fixed magnet 41 is greater than the outward elastic force applied by the return spring 32 to the locking rod 31.

[0023] The locking rod 31 has an integrally formed pull ring 7 on its outer end face facing the locking hole 33. The pull ring 7 is a ring structure and is used to cooperate with the special operating tool 9 to pull the locking rod 31 outward.

[0024] A protective cover 8 is provided on the top of the meter cover 1 corresponding to the vertical insertion / removal position of the independent window 2. The protective cover 8 is a rectangular plate structure. One edge of the protective cover 8 is hinged to the top edge of the meter cover 1 via a pivot. The axis of the pivot is set in the horizontal direction. The protective cover 8 can be flipped upward around the axis of the pivot to open, exposing the top insertion / removal area of ​​the independent window 2, or it can be flipped downward to close, completely covering the top insertion / removal area of ​​the independent window 2, preventing dust and rainwater from entering the electricity meter from the insertion / removal area. The free end of the protective cover 8 is integrally formed with an elastic buckle. The meter cover 1 has a corresponding slot that matches the elastic buckle. When the protective cover 8 is closed, the elastic buckle engages in the slot, preventing the protective cover 8 from being accidentally opened due to wind or vibration.

[0025] The special operating tool 9 used with the electricity meter is a rod-shaped structure. The surface of the rod of the special operating tool 9 is provided with anti-slip texture to increase the friction when the operator holds it and prevent slippage during operation. One end of the special operating tool 9 is set as an inner push part 90, which is a flat cylindrical end, used to push the outer end face of the locking rod 31 laterally; the other end of the special operating tool 9 is set as an outer hook part 91, which is a curved hook-shaped structure, used to hook the pull ring 7 at the outer end of the locking rod 31 and pull the locking rod 31 outward.

[0026] In the two sets of elastic locking components 3 arranged vertically on one side of the independent window 2, the outer diameter of the upper locking rod 31 is smaller than that of the lower locking rod 31. Correspondingly, the diameter of the upper locking hole 33 on the cover 1 is smaller than that of the lower locking hole 33. The diameter of the upper locking hole 33 matches the outer diameter of the upper locking rod 31, and the diameter of the lower locking hole 33 matches the outer diameter of the lower locking rod 31. If the outer diameters of the upper and lower locking rods 31 are the same, when the independent window 2 is inserted vertically, the lower locking rod 31, which is lower in position, will pass through the area where the upper locking hole 33 is located first, and may be mistakenly inserted into the upper locking hole 33, causing assembly jamming. With the size design of being thinner at the top and thicker at the bottom, the lower locking rod 31, because its diameter is larger than that of the upper locking hole 33, cannot enter the upper locking hole 33, thus structurally eliminating the risk of misinsertion.

[0027] In the tightened state, the independent window 2 is inserted into the predetermined position in the mounting opening of the cover 1 along the guide groove 6. Under the lateral outward elastic force of the return spring 32, the locking rod 31 of each set of elastic locking components 3 extends into the corresponding locking hole 33, fixing the independent window 2 and the cover 1 together. At this time, the moving magnet 40 and the fixed magnet 41 are separated from each other, and the protective cover 8 is in a closed state, covering the top insertion and removal area of ​​the independent window 2.

[0028] When it is necessary to disassemble the independent window 2 for replacement or repair, first flip up the protective cover 8 to expose the top insertion area of ​​the independent window 2. Then, using the inward pushing part 90 of the special operating tool 9, align the outer end face of each locking rod 31 in turn and push the locking rod 31 horizontally inward, so that the locking rod 31 overcomes the elastic force of the return spring 32 and slides into the groove 30. When the moving magnet 40 at the inner end of the locking rod 31 contacts the fixed magnet 41 at the bottom of the groove 30, the moving magnet 40 and the fixed magnet 41 attract each other. Since the attraction force is greater than the elastic force of the return spring 32, after releasing the special operating tool 9, the locking rod 31 will not be ejected by the return spring 32, but will remain retracted into the groove 30. At this time, the locking relationship between the independent window 2 and the meter cover 1 is released, and it is in a detachable state. Then, the independent window 2 can be pulled out vertically upward along the guide groove 6 for replacement or internal repair of the electricity meter.

[0029] When it is necessary to reinstall the independent window 2 onto the watch cover 1, first align the guide ribs 5 on both sides of the independent window 2 with the guide grooves 6 on the watch cover 1, and insert the independent window 2 vertically from top to bottom. Since the outer diameter of the lower locking rod 31 is larger than the diameter of the upper locking hole 33, the lower locking rod 31 will not be mistakenly inserted into the upper locking hole 33 during the insertion process, and the independent window 2 can slide smoothly to the predetermined position. At this time, each set of locking rods 31 is still in a retracted state due to the attraction between the moving magnet 40 and the fixed magnet 41. Then, use the outer hook part 91 of the special tool to hook the pull ring 7 at the outer end of each set of locking rods 31 in sequence, and pull the locking rods 31 horizontally outward to separate the moving magnet 40 and the fixed magnet 41. After separation, the elastic force of the return spring 32 pushes the locking rod 31 to slide outward, so that the outer end of the locking rod 31 extends into the corresponding locking hole 33, and the independent window 2 is re-fixed onto the watch cover 1. Finally, flip the protective cover 8 downwards to close it, covering the top plug-in area of ​​the independent window 2 and restoring it to normal use.

[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An energy meter with an easily detachable and detachable formwork, comprising a cover (1) that fits over the energy meter body, characterized in that, Also includes: An independent window (2) is vertically slidably connected to the cover (1); At least one set of elastic locking components (3) is laterally disposed on the side of the independent window (2), including a groove (30) opened on the side of the independent window (2), a locking rod (31) slidably connected in the groove (30), a return spring (32) that applies a lateral outward elastic force to the locking rod (31), and a locking hole (33) opened on the cover (1) and laterally communicating with the groove (30). The magnetic attraction assembly (4) includes a moving magnet (40) located at the inner end of the locking rod (31) and a fixed magnet (41) fixed to the bottom of the groove (30). The attraction force of the moving magnet (40) and the fixed magnet (41) is greater than the elastic force of the return spring (32). In the fastened state, the locking rod (31) extends laterally into the locking hole (33), and in the detachable state, the locking rod (31) retracts into the groove (30) and the moving magnet (40) and the fixed magnet (41) are attracted and fixed.

2. The energy meter with an easily detachable and assembled window as described in claim 1, characterized in that, The independent window (2) has guide ribs (5) integrally formed on the left and right sides. The cover (1) has a guide groove (6) corresponding to the position of the guide ribs (5). The guide ribs (5) and the guide groove (6) slide together to form the vertical sliding connection.

3. The energy meter with an easily detachable and assembled window as described in claim 1, characterized in that, The independent window (2) is provided with at least two sets of elastic locking components (3) on the left and right sides respectively, and the elastic locking components (3) on both sides are arranged symmetrically.

4. The energy meter with an easily detachable and assembled window as described in claim 3, characterized in that, The elastic locking components (3) on one side of the independent window (2) are arranged vertically, with the outer diameter of the upper locking rod (31) being smaller than that of the lower locking rod (31), and the diameter of the upper locking hole (33) corresponding to the cover (1) being smaller than that of the lower locking hole (33).

5. The energy meter with an easily detachable and assembled window as described in claim 1, characterized in that, The locking rod (31) has a pull ring (7) at its outer end facing the locking hole (33).

6. The energy meter with an easily detachable and assembled window as described in claim 1, characterized in that, The top of the cover (1) is hinged with a flip-open protective cover (8) corresponding to the vertical insertion position of the independent window (2). The protective cover (8) is used to cover the insertion area of ​​the independent window (2).

7. The energy meter with an easily detachable window as described in claim 5, characterized in that, It also includes a special operating tool (9) used in conjunction with the electricity meter. One end of the special operating tool (9) is an inner push part (90) for laterally pushing the locking rod (31), and the other end is an outer hook part (91) for hooking the pull ring (7).

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