Modular buckle structure ammeter shell

Abstract

The utility model relates to the technical field of instruments and meters, and discloses a modular buckle structure ammeter shell, which comprises a flame-retardant shell, an exhaust fan is arranged at the top end of the flame-retardant shell, a dustproof assembly is arranged at the top end of the exhaust fan, the exhaust fan is electrically connected with a normally-open temperature switch, clamping grooves are arranged on two sides of the flame-retardant shell in a clamping manner, and the dust-proof assembly is arranged at the bottom end of the flame-retardant shell. The flame-retardant shell is connected with a clamping cover in a clamped mode through a clamping groove, limiting grooves are formed in the bottoms of the two sides of the clamping cover, and the limiting grooves are connected with limiting rods in a clamped mode. The beneficial effects of the utility model are that the clamping cover and the flame-retardant housing are clamped through the clamping groove, modular installation can be carried out, the limiting rod and the limiting groove are buckled, the clamping cover can be locked, the firmness is good, loosening and falling are not easy, the limiting rod is supported and limited through the locking assembly, loosening of the limiting rod can be prevented, and the service life of the limiting rod is prolonged. And the locking assembly is positioned in the flame-retardant shell, so that the concealment is good.

Description

Technical Field

[0001] The utility model relates to the technical field of instruments and meters, in particular to an electric meter housing with a modular buckle structure. Background Art

[0002] Electricity meter is the abbreviation of energy meter, which is an instrument used to measure electrical energy. It is also called watt-hour meter and fire meter. Electricity meter is an instrument used to measure social electricity consumption. It is an important equipment for monitoring and managing grid demand and electricity consumption. The electricity meter counts the electricity consumption (degrees). It is used to measure the amount of electricity used by consumers and set the fee according to the amount of electricity consumed so that electricity bills can be charged to users.

[0003] Its application number is "CN202023061348.1" and discloses "a durable electric meter casing", which "comprises an upper shell, an integrally formed lower shell is provided on the bottom end of the upper shell, and ears are fixedly connected to the left and right side surfaces of the upper shell, and the ears are fixedly connected to the top of the upper shell, and a number of ventilation holes arranged at equal intervals are provided on the left and right side surfaces of the upper shell, and a accommodating cavity is provided on the top surface of the upper shell, and each of the ventilation holes is connected to the accommodating cavity, a pair of threaded hole columns are fixedly connected to the bottom surface of the accommodating cavity near the top, and a pair of threaded hole columns are fixedly connected to the top surface of the lower shell near the top, filters are fixedly connected to the left and right side walls of the accommodating cavity, a heat sink is fixedly connected to the bottom surface of the accommodating cavity, and an upper shell cover is provided on the top surface of the upper shell." In the utility model, a plurality of ventilation holes are provided on the left and right side surfaces of the upper shell and a heat sink is fixedly connected to the bottom surface of the accommodating cavity, so that the housing of the electric meter has the characteristics of good heat dissipation. At the same time, a filter screen is fixedly connected to the left and right side walls of the accommodating cavity, which can effectively prevent dust from entering the accommodating cavity.

[0004] However, the above method still has the following defects: since through holes are opened on the surface of the upper shell cover and the surface of the lower shell cover, they need to be fixed with screws, which is not convenient for installation and disassembly. The upper shell cover and the lower shell cover are supported only by screws, which have poor stability and are easy to loosen. After the components are installed inside the meter, the vents on the left and right sides will be blocked, reducing the heat dissipation effect and making it inconvenient to actively dissipate heat inside the meter case. Summary of the invention

[0005] The utility model aims to provide a modular snap-fit ​​structure electric meter housing to solve the problem in the above-mentioned background technology that the surfaces of the upper housing cover and the lower housing cover are both provided with through holes, which need to be fixed by screws, making it inconvenient to install and disassemble.

[0006] The utility model provides the following technical solutions: a modular snap-on structure electric meter shell, comprising a flame-retardant shell, an exhaust fan is provided at the top of the flame-retardant shell, a dustproof component is provided at the top of the exhaust fan, the exhaust fan is electrically connected to a normally open temperature switch, both sides of the flame-retardant shell are provided with card slots, the flame-retardant shell is connected to a card cover through the card slots, limiting grooves are provided at the bottoms of both sides of the card cover, the limiting grooves are connected to limiting rods, the limiting rods are slidably connected to the flame-retardant shell, the limiting rods are supported and limited by a locking component, and the locking component is located inside the flame-retardant shell, a clamping sleeve is fixedly provided inside the flame-retardant shell, the clamping sleeve is connected to a clamping column, and the clamping column is connected to the clamping cover.

[0007] As a preferred technical solution of the utility model, the dustproof component includes a dust cover and a mounting plate, the four sides of the dust cover are provided with heat dissipation grooves, the surface of the heat dissipation grooves is fixed with a dustproof net, the bottom end of the dust cover is fixed with a mounting plate, and the bottom end of the mounting plate is bonded with a rubber pad.

[0008] As a preferred technical solution of the utility model, an air outlet is opened at the top of the flame-retardant shell, the exhaust fan is fixedly installed inside the air outlet, and the mounting plate is fixedly connected to the top of the air outlet by screws.

[0009] As a preferred technical solution of the utility model, the inner walls on both sides of the card cover are respectively engaged with two card slots, push slots are provided on both sides of the card cover, and explosion-proof glass windows are provided on the surface of the card cover.

[0010] As a preferred technical solution of the utility model, the normally open temperature switch is fixedly connected to the inner wall of one side of the flame retardant shell, a protrusion is fixedly provided inside the flame retardant shell, a threaded hole is provided on the surface of the protrusion, and a threading hole is provided at the bottom end of the flame retardant shell.

[0011] As a preferred technical solution of the utility model, the locking assembly includes a back plate and a slider, the back plate is fixedly connected to the interior of the flame retardant shell, one side of the back plate is connected to the slider through a support spring, one side of the slider is fixedly provided with a button, the top of the slider is fixedly provided with a vertical plate, and the limit rod is fixedly connected to the vertical plate.

[0012] As a preferred technical solution of the utility model, spring columns are fixedly provided on one side of the back plate and one side of the slider, both ends of the support spring are snap-connected with the spring columns, the bottom end of the slider is slidably connected with a guide rail, and the guide rail is fixedly connected to the inner wall of the bottom end of the flame retardant shell.

[0013] As a preferred technical solution of the utility model, ventilation holes are provided at the bottom of both sides of the flame retardant shell, filters are fixedly provided on the surface of the ventilation holes, positioning plates are fixedly provided on one side of the top end and one side of the bottom end of the flame retardant shell, and positioning holes are provided on the surface of the positioning plates.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The modular buckle structure electric meter housing can be installed modularly by snapping the card cover with the flame-retardant housing through the card slot. The card cover can be locked by snapping the limit rod with the limit slot. The card cover has good firmness and is not easy to loosen and fall off. The limit rod is supported and limited by the locking assembly to prevent the limit rod from loosening. The locking assembly is located inside the flame-retardant housing and has good concealment. The stability of the card cover can be improved by snapping the card sleeve and the card column together. The card cover is not easy to shake and can be reinforced.

[0016] 2. The modular snap-on structure meter housing has a flame-retardant housing with a temperature higher than the threshold of the normally open temperature switch. The contacts of the normally open temperature switch can be closed, and the exhaust fan can be controlled to actively dissipate heat inside the flame-retardant housing, thereby accelerating the gas flow rate. After the components are installed inside the meter, the heat dissipation effect can be guaranteed under the action of airflow, and the heat can be discharged through the top of the flame-retardant housing, which will not hinder the dust-proof component from preventing dust from falling vertically into the flame-retardant housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the flame-retardant housing of the utility model;

[0021] Figure 5 This is a structural schematic diagram of the card cover of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the locking assembly of the utility model.

[0023] In the figure: 1. flame retardant shell; 2. exhaust fan; 3. air outlet; 4. dustproof component; 401. dust cover; 402. dust net; 403. mounting plate; 404. rubber pad; 5. positioning plate; 6. positioning hole; 7. card slot; 8. card cover; 9. push slot; 10. explosion-proof glass window; 11. card column; 12. limit slot; 13. card sleeve; 14. limit rod; 15. locking component; 1501. back plate; 1502. support spring; 1503. slider; 1504. button; 1505. vertical plate; 1506. spring column; 1507. guide rail; 16. bump; 17. threading hole; 18. normally open temperature switch; 19. filter. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1:

[0025] See also Figure 1-6 The utility model provides a modular buckle structure electric meter housing, including a flame retardant housing 1, an exhaust fan 2 is arranged at the top of the flame retardant housing 1, a dustproof component 4 is arranged at the top of the exhaust fan 2, the exhaust fan 2 is electrically connected to a normally open temperature switch 18, and the normally open temperature switch 18 can control the exhaust fan 2 to actively dissipate heat inside the flame retardant housing 1, thereby improving the heat dissipation effect, and the dustproof component 4 can prevent dust from falling vertically into the flame retardant housing 1, and both sides of the flame retardant housing 1 are provided with a card slot 7, and the flame retardant housing 1 is connected with a card cover 8 through the card slot 7, and the card cover 8 is engaged with the flame retardant housing 1 through the card slot 7, so that it can be Modular installation, the bottom of both sides of the card cover 8 are provided with limiting grooves 12, the limiting grooves 12 are engaged and connected with limiting rods 14, and the card cover 8 can be locked by buckling the limiting rods 14 with the limiting grooves 12, which has good firmness and is not easy to loosen and fall off, the limiting rods 14 are slidably connected with the flame retardant shell 1, and the limiting rods 14 are supported and limited by the locking assembly 15, and the locking assembly 15 is located inside the flame retardant shell 1, and a clamping sleeve 13 is fixed inside the flame retardant shell 1, and the clamping sleeve 13 is engaged and connected with a clamping column 11, and the clamping column 11 is engaged and connected with the card cover 8, and the stability of the card cover 8 is improved by the clamping sleeve 13 and the clamping column 11;

[0026] The inner walls on both sides of the card cover 8 are respectively engaged with the two card slots 7, and push slots 9 are provided on both sides of the card cover 8. The surface of the card cover 8 is provided with an explosion-proof glass window 10, and the card cover 8 is easily pushed through the push slots 9, so that the card cover 8 is conveniently removed from the flame-retardant housing 1;

[0027] The normally open temperature switch 18 is fixedly connected to the inner wall of one side of the flame retardant housing 1. A protrusion 16 is fixedly provided inside the flame retardant housing 1. A threaded hole is provided on the surface of the protrusion 16. Components can be installed through the threaded hole of the protrusion 16. A threading hole 17 is provided at the bottom end of the flame retardant housing 1. A wire can be passed through the threading hole 17.

[0028] Ventilation holes are provided at the bottom of both sides of the flame retardant shell 1, which increase the ventilation area of ​​the flame retardant shell 1. A filter 19 is fixedly provided on the surface of the ventilating hole to filter dust. Positioning plates 5 are fixedly provided on one side of the top end and one side of the bottom end of the flame retardant shell 1. Positioning holes 6 are provided on the surface of the positioning plates 5, and the flame retardant shell 1 can be fixedly installed through the positioning holes 6 of the positioning plates 5. Embodiment 2:

[0029] The dustproof component 4 includes a dustproof cover 401 and a mounting piece 403. The dustproof cover 401 can prevent dust from falling directly into the flame-retardant housing 1. The four sides of the dustproof cover 401 are provided with heat dissipation grooves to ensure heat discharge. A dustproof net 402 is fixedly provided on the surface of the heat dissipation groove to prevent dust from entering the dustproof cover. The bottom end of the dustproof cover 401 is fixedly provided with a mounting piece 403. The bottom end of the mounting piece 403 is bonded with a rubber pad 404, which increases the stability of the mounting piece 403 during installation and is not easy to shake.

[0030] An air outlet 3 is provided at the top of the flame-retardant housing 1, and the exhaust fan 2 is fixedly installed inside the air outlet 3. The mounting plate 403 is fixedly connected to the top of the air outlet 3 by screws, so that the protective cover 401 can cover the air outlet 3 and provide protection for the exhaust fan 2. Embodiment 3:

[0031] The locking assembly 15 includes a backing plate 1501 and a slider 1503. The backing plate 1501 is fixedly connected to the inside of the flame-retardant housing 1. The slider 1503 is connected to one side of the backing plate 1501 through a support spring 1502. The backing plate 1501 can support the slider 1503 through the support spring 1502. A button 1504 is fixedly provided on one side of the slider 1503. A vertical plate 1505 is fixedly provided on the top of the slider 1503. The limiting rod 14 is fixedly connected to the vertical plate 1505. The slider 1503 can support the limiting rod 14 through the vertical plate 1505.

[0032] One side of the support plate 1501 and one side of the slider 1503 are fixedly provided with a spring column 1506, and both ends of the support spring 1502 are engaged with the spring column 1506. The spring column 1506 can limit the support spring 1502 to prevent the support spring 1502 from loosening and falling off. The bottom end of the slider 1503 is slidably connected with a guide rail 1507, and the guide rail 1507 is fixedly connected to the inner wall of the bottom end of the flame retardant shell 1, and the guide rail 1507 can guide the slider 1503 to prevent the slider 1503 from tilting.

[0033] When in use, firstly, the flame retardant housing 1 is fixedly installed through the positioning hole 6 of the positioning plate 5, and then the components are installed through the threaded holes of the protrusions 16, and then the wires are passed through the threading holes 17 to connect the components, and then the buttons 1504 of the two locking components 15 are pressed in opposite directions, so that the slider 1503 compresses the support spring 1502 and drives the limit rod 14 to contract, and finally the two sides of the card cover 8 are pushed into the card slots 7 on both sides of the flame retardant housing 1 respectively;

[0034] After the card cover 8 is installed, the card column 11 can enter the interior of the card sleeve 13. The staff releases the button 1504 and stops compressing the support spring 1502. The support spring 1502 can push the limit rod 14 to reset through the slider 1503, and the limit rod 14 can be pushed into the limit groove 12 of the card cover 8 to lock the card cover 8. The double limit rod 14 and the limit groove 12 are buckled, which has good safety. The card cover 8 can be opened only when the two buttons 1504 are pressed at the same time.

[0035] When the components inside the flame retardant housing 1 are working, the normally open temperature switch 18 can monitor the temperature inside the flame retardant housing 1. When the temperature inside the flame retardant housing 1 is higher than the threshold of the normally open temperature switch 18, the contacts of the normally open temperature switch 18 can be closed, and the exhaust fan 2 can be controlled to exhaust the air inside the flame retardant housing 1, so that the flame retardant housing 1 is in a negative pressure state. External air enters the flame retardant housing 1 through the vents, and the airflow passes through the components, which speeds up the gas flow speed and can carry away the heat on the surface of the components, thereby ensuring the heat dissipation effect. The heat can be discharged through the air outlet 3;

[0036] The dust cover 401 will not hinder the discharge of heat through the dust net 402. When the temperature inside the flame retardant shell 1 is lower than the threshold of the normally open temperature switch 18, the contacts of the normally open temperature switch 18 can be disconnected, and the exhaust fan 2 can be controlled to enter the sleep state, thereby avoiding the continuous operation of the exhaust fan 2. The dust net 402 can prevent dust from falling vertically into the flame retardant shell 1 through the air outlet 3.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular snap-fit ​​structure electric meter housing, comprising a flame-retardant housing (1), characterized in that: An exhaust fan (2) is provided at the top of the flame-retardant housing (1), a dustproof assembly (4) is provided at the top of the exhaust fan (2), the exhaust fan (2) is electrically connected to a normally open temperature switch (18), a card slot (7) is provided on both sides of the flame-retardant housing (1), the flame-retardant housing (1) is connected to a card cover (8) by means of the card slot (7), limiting slots (12) are provided at the bottom of both sides of the card cover (8), the limiting slots (12) are connected to a limiting rod (14), the limiting rod (14) is slidably connected to the flame-retardant housing (1), the limiting rod (14) is supported and limited by a locking assembly (15), and the locking assembly (15) is located inside the flame-retardant housing (1), a clamping sleeve (13) is fixedly provided inside the flame-retardant housing (1), the clamping sleeve (13) is connected to a clamping column (11), and the clamping column (11) is connected to the clamping cover (8) by means of the clamping sleeve (13).

2. The modular buckle structure electric meter housing according to claim 1, characterized in that: The dustproof component (4) comprises a dustproof cover (401) and a mounting plate (403); four sides of the dustproof cover (401) are provided with heat dissipation grooves; a dustproof net (402) is fixedly provided on the surface of the heat dissipation groove; a mounting plate (403) is fixedly provided at the bottom end of the dustproof cover (401); and a rubber pad (404) is bonded to the bottom end of the mounting plate (403).

3. The modular buckle structure electric meter housing according to claim 2, characterized in that: An air outlet (3) is provided at the top of the flame-retardant housing (1); the exhaust fan (2) is fixedly mounted inside the air outlet (3); and the mounting plate (403) is fixedly connected to the top of the air outlet (3) by means of screws.

4. The modular buckle structure electric meter housing according to claim 1, characterized in that: The inner walls on both sides of the card cover (8) are respectively engaged with the two card slots (7), push slots (9) are provided on both sides of the card cover (8), and an explosion-proof glass window (10) is provided on the surface of the card cover (8).

5. The modular buckle structure electric meter housing according to claim 1, characterized in that: The normally open temperature switch (18) is fixedly connected to the inner wall of one side of the flame retardant housing (1); a protrusion (16) is fixedly provided inside the flame retardant housing (1); a threaded hole is provided on the surface of the protrusion (16); and a threading hole (17) is provided at the bottom end of the flame retardant housing (1).

6. The modular buckle structure electric meter housing according to claim 1, characterized in that: The locking assembly (15) comprises a backing plate (1501) and a slider (1503); the backing plate (1501) is fixedly connected to the interior of the flame-retardant housing (1); one side of the backing plate (1501) is connected to the slider (1503) via a support spring (1502); a button (1504) is fixedly provided on one side of the slider (1503); a vertical plate (1505) is fixedly provided on the top end of the slider (1503); and the limiting rod (14) is fixedly connected to the vertical plate (1505).

7. The modular buckle structure electric meter housing according to claim 6, characterized in that: A spring column (1506) is fixedly provided on one side of the support plate (1501) and one side of the slider (1503); both ends of the support spring (1502) are snap-connected to the spring column (1506); the bottom end of the slider (1503) is slidably connected to a guide rail (1507); and the guide rail (1507) is fixedly connected to the inner wall of the bottom end of the flame-retardant housing (1).

8. The modular buckle structure electric meter housing according to claim 1, characterized in that: The bottom of both sides of the flame retardant shell (1) are provided with ventilation holes, and filters (19) are fixedly provided on the surfaces of the ventilation holes. Positioning plates (5) are fixedly provided on one side of the top end and one side of the bottom end of the flame retardant shell (1), and positioning holes (6) are provided on the surfaces of the positioning plates (5).

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