Electric meter with moisture-proof and dust-proof structure

Abstract

The utility model discloses an electric meter with a moisture-proof and dust-proof structure, which belongs to the technical field of electric meters and comprises a mounting plate, an electric meter body is fixedly mounted on the front surface of the mounting plate, a protective shell is arranged on the front surface of the mounting plate and positioned outside the electric meter body, and a waterproof jacket shell is fixedly mounted on the front surface of the mounting plate and positioned outside the protective shell. The back surface of the protective shell is inserted into the inner cavity of the waterproof jacket shell; according to the utility model, the protection shell is arranged outside the electric meter body, the electric meter body can be dustproof and rainproof, the rain baffle is arranged at the top of the mounting plate, water accumulation at the top of the protection shell can be prevented, and the sealing ring is arranged at the joint of the protection shell and the waterproof jacket shell, so that the joint can be sealed, and the service life of the electric meter is prolonged. And external rainwater is prevented from permeating into the inner cavity of the protection shell through the connection part between the protection shell and the waterproof sleeve shell to cause the electric meter body to be damped, and through the arrangement of the device, the damp-proof and dust-proof effects are achieved on the electric meter body.

Description

Technical Field

[0001] The utility model relates to the technical field of electric meters, in particular to an electric meter with a moisture-proof and dust-proof structure. Background Art

[0002] Currently, when installing an electricity meter, a protective case is generally installed on the surface of the meter to protect the meter. The protective case is generally locked with a padlock to prevent someone from stealing the meter or tampering with the meter to steal electricity, and to prevent children or adults from putting their hands into the meter box and being electrocuted, thereby endangering personal safety.

[0003] Public (announcement) number is The Chinese patent discloses a moisture-proof and dust-proof electric meter, including a mounting plate, an electric meter mounted on the surface of the mounting plate, a round shaft mounted on the inner cavity of the mounting plate, a protective shell mounted on the surface of the round shaft, a mounting groove provided on the surface of the protective shell, a transparent plate mounted on the inner cavity of the mounting groove, a sliding groove provided on the surface of the protective shell in front of the transparent plate, a baffle mounted on the inner cavity of the sliding groove, a scraper mounted on the rear surface of the baffle, and a pull rod mounted on the surface of the baffle. When it is necessary to copy the value of the electric meter, hold the pull rod and pull the baffle to the right. During the movement, the baffle drives the scraper to move, and scrapes off a small amount of dust attached to the surface of the transparent plate. When the baffle is opened, the staff can view the value of the electric meter through the transparent plate and copy it. When the copying is completed, the baffle is closed, which can effectively facilitate the contact between dust and the transparent plate, so that the staff does not need to open the protective shell to copy the value of the electric meter, thereby improving work efficiency.

[0004] The moisture-proof and dust-proof electric meter involved in the above patent is installed outdoors for a long time. Water will accumulate on the top due to rain. The rainwater will flow into the interior of the protective shell through the gap between the protective shell and the mounting plate, causing the electric meter to become damp. Therefore, we need to propose an electric meter with a moisture-proof and dust-proof structure. Utility Model Content

[0005] The purpose of the present invention is to provide an electric meter with a moisture-proof and dust-proof structure, which has the advantage of being moisture-proof and dust-proof when used outdoors, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides an electric meter with a moisture-proof and dust-proof structure, comprising a mounting plate, a meter body being fixedly mounted on the front of the mounting plate, a protective shell being provided on the front of the mounting plate and located outside the meter body, a waterproof case being fixedly mounted on the front of the mounting plate and located outside the protective shell, the back of the protective shell being plugged into the inner cavity of the waterproof case, a sealing ring being fixedly mounted on the surface of the protective shell, the back of the sealing ring being fitted with the front of the waterproof case, a positioning assembly being further provided between the protective shell and the mounting plate, and the protective shell being fixedly mounted on the front of the mounting plate through the positioning assembly.

[0007] Preferably, the positioning assembly includes a positioning plate fixedly installed on both sides of the back side of the protective shell, a positioning hole is provided on the surface of the positioning plate, a positioning rod is inserted into the inner cavity of the positioning hole, a fixing groove is provided inside the mounting plate, and an elastic connection assembly for driving the positioning rod to move is installed in the inner cavity of the fixing groove.

[0008] Preferably, the elastic connection assembly includes a pull rod slidably connected to the inner cavity of the fixing groove, one end of the pull rod passes through the fixing groove and extends to the outside of the mounting plate, a connecting plate is fixedly installed on the surface of the pull rod, one end of the positioning rod is fixedly connected to one side of the connecting plate, and one group of the connecting plates is fixedly installed with a compression spring on one side, and the other end of the compression spring is fixedly connected to the inner wall of the fixing groove.

[0009] Preferably, a rain shield is fixedly mounted on the top of the mounting plate, and both ends of the rain shield are arranged in an arc shape downward.

[0010] Preferably, a mounting groove is provided on the surface of the protective shell, and a transparent acrylic plate is fixedly installed in the inner cavity of the mounting groove.

[0011] Preferably, a concave groove is provided on the back side of the mounting plate, a wire threading groove is provided on one side of the inner cavity of the concave groove, and one side of the wire threading groove is connected to the inner cavity of the protective shell.

[0012] Preferably, mounting holes are provided at the four corners of one side of the mounting plate, and a slot is provided on the surface of the mounting plate at a corresponding position of the positioning plate, one end of the slot is connected to the surface of the fixing slot, and the surface of the positioning plate is slidably plugged into the inner cavity of the slot.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model provides a protective shell on the outside of the electric meter body, which can protect the electric meter body from dust and rain. In addition, a rain shield is provided on the top of the mounting plate to prevent water accumulation on the top of the protective shell. A sealing ring is provided at the connection between the protective shell and the waterproof shell, which can seal the connection and prevent external rainwater from penetrating into the inner cavity of the protective shell through the connection between the protective shell and the waterproof shell, causing the electric meter body to be damp. Through the provision of this device, the electric meter body can be protected from moisture and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the protective shell of the utility model when it is in an open state;

[0017] Figure 3 This is a structural diagram of the mounting plate of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the elastic connection assembly of the present invention.

[0019] In the figure: 1. Mounting plate; 2. Meter body; 3. Protective shell; 4. Waterproof casing; 5. Sealing ring; 6. Positioning plate; 7. Positioning hole; 8. Positioning rod; 9. Fixing slot; 10. Pull rod; 11. Connecting plate; 12. Compression spring; 13. Rain shield; 14. Mounting slot; 15. Transparent acrylic plate; 16. Concave slot; 17. Wire threading slot; 18. Mounting hole; 19. Slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-4 The utility model provides an electric meter with a moisture-proof and dust-proof structure, comprising a mounting plate 1, an electric meter body 2 is fixedly mounted on the front of the mounting plate 1, a protective shell 3 is provided on the front of the mounting plate 1 and located outside the electric meter body 2, a waterproof case 4 is fixedly mounted on the front of the mounting plate 1 and located outside the protective shell 3, the back of the protective shell 3 is plugged into the inner cavity of the waterproof case 4, a sealing ring 5 is fixedly mounted on the surface of the protective shell 3, the back of the sealing ring 5 is fitted with the front of the waterproof case 4, a rain shield 13 is fixedly mounted on the top of the mounting plate 1, and both ends of the rain shield 13 are arranged in an arc shape downward.

[0022] In this embodiment, a protective shell 3 is provided on the outside of the meter body 2 to protect the meter body 2 from dust and rain. In addition, a rain shield 13 is provided on the top of the mounting plate 1 to prevent water accumulation on the top of the protective shell 3. A sealing ring 5 is provided at the connection between the protective shell 3 and the waterproof casing 4 to seal the connection and prevent external rainwater from penetrating into the inner cavity of the protective shell 3 through the connection between the protective shell 3 and the waterproof casing 4, thereby preventing the meter body 2 from getting damp.

[0023] The protective housing 3 has a mounting slot 14 formed on its surface, into which a transparent acrylic plate 15 is fixedly mounted. The mounting slot 14 provides space for the transparent acrylic plate 15, which in turn allows the user to easily see the value displayed on the meter body 2 for easier meter reading.

[0024] In addition, a concave groove 16 is formed on the back of the mounting plate 1. A wire threading groove 17 is formed on one side of the inner cavity of the concave groove 16. One side of the wire threading groove 17 is connected to the inner cavity of the protective shell 3. The provision of the concave groove 16 allows a certain gap between the wire threading groove 17 and the mounting base for installing the wiring harness. The wiring harness passes through the wire threading groove 17 on one side of the inner cavity of the concave groove 16, enters the inner cavity of the protective shell 3, and connects to the bottom of the meter body 2.

[0025] It is worth noting that a positioning assembly is also provided between the protective shell 3 and the mounting plate 1. The protective shell 3 is fixedly installed on the front of the mounting plate 1 through the positioning assembly. The positioning assembly includes positioning plates 6 fixedly installed on both sides of the back of the protective shell 3. A positioning hole 7 is provided on the surface of the positioning plate 6. The inner cavity of the positioning hole 7 is plugged with a positioning rod 8. A fixing groove 9 is provided inside the mounting plate 1. The inner cavity of the fixing groove 9 is installed with an elastic connection assembly for driving the positioning rod 8 to move. The elastic connection assembly includes a pull rod 10 slidably connected to the inner cavity of the fixing groove 9. One end of the pull rod 10 passes through the fixing groove 9 and extends to the outside of the mounting plate 1. A connecting plate 11 is fixedly installed on the surface of the pull rod 10. One end of the positioning rod 8 is fixedly connected to one side of the connecting plate 11. A compression spring 12 is fixedly installed on one side of one group of connecting plates 11, and the other end of the compression spring 12 is fixedly connected to the inner wall of the fixing groove 9.

[0026] By setting the positioning component, the protective shell 3 can be installed and fixed. When the protective shell 3 needs to be installed, the user can pull the pull rod 10 outward, and then insert the back of the protective shell 3 into the inner cavity of the waterproof shell 4. At this time, the positioning plate 6 on the back of the protective shell 3 will be inserted into the inner cavity of the fixing groove 9, and then the user can release the pull rod 10. The reaction force generated by the contraction of the compression spring 12 will push the pull rod 10 to reset, and then drive the positioning rod 8 to be inserted into the inner cavity of the positioning hole 7 through the connecting plate 11, so that the installation position of the protective shell 3 is fixed by positioning the positioning plate 6.

[0027] Furthermore, mounting holes 18 are provided at each of the four corners of one side of the mounting plate 1. A slot 19 is provided on the surface of the mounting plate 1 at a location corresponding to the positioning plate 6. One end of the slot 19 communicates with the surface of the fixing slot 9, and the surface of the positioning plate 6 slidably engages with the inner cavity of the slot 19. The provision of the mounting holes 18 facilitates the user's installation and fixation of the mounting plate 1 on the mounting base, and the provision of the slot 19 allows the positioning plate 6 to be inserted into the inner cavity of the fixing slot 9 through the slot 19.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric meter with a moisture-proof and dust-proof structure, comprising a mounting plate (1), a meter body (2) being fixedly mounted on the front of the mounting plate (1), characterized in that: A protective shell (3) is provided on the front of the mounting plate (1) and located outside the electric meter body (2); a waterproof shell (4) is fixedly installed on the front of the mounting plate (1) and located outside the protective shell (3); the back of the protective shell (3) is plugged into the inner cavity of the waterproof shell (4); a sealing ring (5) is fixedly installed on the surface of the protective shell (3); the back of the sealing ring (5) is in contact with the front of the waterproof shell (4); a positioning component is further provided between the protective shell (3) and the mounting plate (1); the protective shell (3) is fixedly installed on the front of the mounting plate (1) through the positioning component.

2. The electric meter with a moisture-proof and dust-proof structure according to claim 1, characterized in that: The positioning assembly includes positioning plates (6) fixedly mounted on both sides of the back of the protective shell (3), a positioning hole (7) is provided on the surface of the positioning plate (6), a positioning rod (8) is inserted into the inner cavity of the positioning hole (7), a fixing groove (9) is provided inside the mounting plate (1), and an elastic connection assembly for driving the positioning rod (8) to move is installed in the inner cavity of the fixing groove (9).

3. The electric meter with a moisture-proof and dust-proof structure according to claim 2, characterized in that: The elastic connection assembly includes a pull rod (10) slidably connected to the inner cavity of the fixing groove (9), one end of the pull rod (10) passes through the fixing groove (9) and extends to the outside of the mounting plate (1), a connecting plate (11) is fixedly installed on the surface of the pull rod (10), one end of the positioning rod (8) is fixedly connected to one side of the connecting plate (11), and a compression spring (12) is fixedly installed on one side of one group of the connecting plates (11), and the other end of the compression spring (12) is fixedly connected to the inner wall of the fixing groove (9).

4. The electric meter with a moisture-proof and dust-proof structure according to claim 1, characterized in that: A rain shield (13) is fixedly mounted on the top of the mounting plate (1), with both ends of the rain shield (13) arranged in an arc shape pointing downwards.

5. The electric meter with a moisture-proof and dust-proof structure according to claim 1, characterized in that: A mounting groove (14) is provided on the surface of the protective shell (3), and a transparent acrylic plate (15) is fixedly mounted in the inner cavity of the mounting groove (14).

6. The electric meter with a moisture-proof and dust-proof structure according to claim 1, characterized in that: A concave groove (16) is provided on the back of the mounting plate (1), a wire threading groove (17) is provided on one side of the inner cavity of the concave groove (16), and one side of the wire threading groove (17) is communicated with the inner cavity of the protective shell (3).

7. The electric meter with a moisture-proof and dust-proof structure according to claim 2, characterized in that: The four corners of one side of the mounting plate (1) are provided with mounting holes (18), and a slot (19) is provided on the surface of the mounting plate (1) at a position corresponding to the positioning plate (6). One end of the slot (19) is connected to the surface of the fixing slot (9), and the surface of the positioning plate (6) is slidably plugged into the inner cavity of the slot (19).

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