CN213181682U - Ammeter lid and ammeter with transparent window - Google Patents

Abstract

The utility model relates to an ammeter cover with a transparent window and an ammeter, wherein, the ammeter cover with the transparent window comprises a cover body, and the front panel of the cover body is provided with an opening; the transparent window is arranged at the opening and used for closing the opening; at least two extending pieces which are arranged at intervals along the circumferential direction, are arranged on the rear surface of the transparent window and extend backwards; the first socket is arranged corresponding to the extension piece, is arranged on the front panel and positioned on the periphery of the opening, and is used for inserting the extension piece; the method is characterized in that: the first socket and the corresponding extension piece are provided with a bayonet and a lug in a matched manner, wherein the bayonet and the lug are in clamping fit with each other, and a first step part which is abutted against the bayonet and limits the separation of the bayonet and the lug is arranged on the surface of the lug contacted with the bayonet. Therefore, the transparent window is firmly arranged on the front panel, and the whole installation structure is simple and reasonable and is convenient to connect.

Description

Ammeter lid and ammeter with transparent window

Technical Field

The utility model relates to an ammeter, concretely relates to ammeter lid and have ammeter of this ammeter lid with transparent window.

Background

An electric meter is an instrument for measuring electric energy, also called watt-hour meter, fire meter, electric energy meter, kilowatt-hour meter, and refers to an instrument for measuring various electric quantities.

Present electric energy meter is like chinese utility model patent "an electric energy meter with window amplification effect", and its patent number is CN201220742332.3 (the publication number is CN203037691U), discloses an electric energy meter with window amplification effect, comprises electric energy meter body and electric energy surface plate, electric energy surface plate passes through two at least fix with screw on the electric energy meter body, a liquid crystal display is equipped with to electric energy meter body upper surface, it has a through-hole to open on the electric energy surface plate, the through-hole have with liquid crystal display suits shape and size, the position of through-hole just to liquid crystal display's top, it can enlarge to inlay a piece in the through-hole liquid crystal display shows the lens of content. It sets up transparent window on the electric energy meter to disclose in the above-mentioned patent, adopts the screw installation for in actual installation, transparent window aperture part is impaired easily, and makes the table lid scrap.

Therefore, further improvements to existing electric energy meters are needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to above-mentioned prior art's current situation, provides a transparent window connects convenient and firm ammeter lid that has transparent window.

The utility model discloses the second technical problem that will solve provides an ammeter with above-mentioned ammeter lid.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: an electricity meter cover with a transparent window comprises

The front panel of the cover body is provided with an opening;

the transparent window is arranged at the opening and used for closing the opening;

at least two extending pieces which are arranged at intervals along the circumferential direction, are arranged on the rear surface of the transparent window and extend backwards;

the first socket is arranged corresponding to the extension piece, is arranged on the front panel and positioned on the periphery of the opening, and is used for inserting the extension piece;

the method is characterized in that: the first socket and the corresponding extension piece are provided with a bayonet and a lug in a matched manner, wherein the bayonet and the lug are in clamping fit with each other, and a first step part which is abutted against the bayonet and limits the separation of the bayonet and the lug is arranged on the surface of the lug contacted with the bayonet.

Preferably, the bayonet is opened on the extension piece, the projection is arranged on the inner side wall of the first socket, and the first step is formed on the rear wall surface of the projection. The bayonet can also be arranged on the side wall of the first socket, and the lug is arranged on the side wall of the extension piece.

Preferably, the rear surface of the front panel has an extension column extending rearward, and the first socket is opened in an axial direction of the extension column.

In order to realize the limit matching of the bayonet and the lug, a second step part matched with the first step part is formed on the inner side wall of the bayonet at the position corresponding to the first step part. Thus, the first step part and the second step part are abutted, so that the bayonet and the lug are hooked together to limit the bayonet and the lug from being separated.

In order to make the more firm installation of transparent window on the front panel more, the rear surface of transparent window has the post of backward extension, be formed with the fixture block on the lateral wall of post, the front panel seted up the confession correspond the post insert establish wherein and with the second socket of fixture block looks joint, the second socket is located open-ended periphery, and with first socket interval arrangement.

Preferably, the second inserting openings are at least two and are arranged at intervals along the circumferential direction, and the first inserting opening is positioned between two adjacent second inserting openings.

In order to conveniently contain the transparent window, the front surface of the front panel is recessed backwards to form a concave cavity for containing the transparent window, and the opening is formed in the concave cavity.

Specifically, the cavity is internally located the open-ended outside has the recess of undercut and extending along circumference, the circumference of transparent window extends backward to be formed with and inserts and locate annular picture peg in the recess.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: an ammeter with above-mentioned ammeter lid which characterized in that: still include liquid crystal display and circuit board, liquid crystal display sets up on the circuit board, and correspond the opening and arrange, the back wall of front panel has the limiting plate that extends backward, the limiting plate has two, and relative arrangement, two be formed with the holding between the limiting plate liquid crystal display's accommodation space.

Preferably, the liquid crystal display is rectangular, the two limiting plates are located at two ends of the liquid crystal display in the length direction, the periphery of the front panel is provided with a circular wall extending backwards, and a reinforcing rib is arranged between at least one limiting plate and the opposite wall plate of the circular wall. The existence of strengthening rib, on the one hand strengthen the limiting plate, and on the other hand, when the centre gripping was used hard to cavity length direction's both ends, transmit clamping-force to the limiting plate, and damage liquid crystal display for remind user's ammeter to damage.

Compared with the prior art, the utility model has the advantages of: be provided with the extension piece on the transparent window of this ammeter lid, first socket has been seted up on the lid front panel, the extension piece passes through bayonet socket and lug looks joint with first socket, and the lug is provided with the first step portion that breaks away from with bayonet socket looks butt and restriction both on the surface that contacts with the bayonet socket, so, when transparent window is installed on the front panel of lid, through lug and bayonet socket joint and the butt of lug and buckle, prevent both breaks away from of lug and bayonet socket, make transparent window firmly install in the front panel, and whole mounting structure is simple reasonable and convenient connection.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of section I of FIG. 2;

FIG. 4 is a cross-sectional view at another angle of FIG. 1;

FIG. 5 is a sectional view of the present embodiment;

FIG. 6 is a schematic view of the watch cover of FIG. 1;

FIG. 7 is a schematic view of a portion of the structure of FIG. 1;

FIG. 8 is a cross-sectional view of FIG. 6;

FIG. 9 is a schematic view of the transparent window shown in FIG. 1;

fig. 10 is a cross-sectional view of fig. 9.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 9, an electric meter according to an embodiment of the present invention includes a meter cover, a base 6, a liquid crystal display 3, and a circuit board 4.

As shown in fig. 2, the front side of the base 6 has an opening, the electric meter cover covers the opening, a cavity a is formed between the electric meter cover and the base 6, the liquid crystal display screen 3 and the circuit board 4 are located in the cavity a, wherein the circuit board 4 is clamped and fixed on the base 6, the specific clamping form adopts a structural form in the prior art, and details are not repeated in this embodiment.

As shown in fig. 1 to 8, the electric meter cover with a transparent window includes a cover body 1 and a transparent window 2. The cover 1 comprises a front panel 11, a circumferential edge of the front panel 11 is provided with a circular wall 12 extending backwards, a cavity 114 is formed by the front surface of the front panel 11 being depressed backwards, an opening 111 is opened on the cavity 114, and the transparent window 2 is positioned in the cavity 114 and covers the opening 111 to close the opening 111.

In order to realize the installation of the transparent window 2, as shown in fig. 3, 4, 6, 8 and 9, the recessed cavity 114 has a groove 115 recessed rearward and extending in the circumferential direction inside the outer side of the opening 111, and the circumferential edge of the transparent window 2 extends rearward at a position corresponding to the groove 115 to form a circumferential annular insert plate 23 extending in the circumferential direction, as shown in fig. 2 to 4, and the annular insert plate 23 is inserted into the groove 115 in a state where the transparent window 2 is located inside the recessed cavity 114.

In order to fix the transparent window 2, as shown in fig. 9 and 10, the rear surface of the transparent window 2 has an extension 21 and a boss 22 extending rearward. Wherein, extension piece 21 has two and upper and lower interval arrangement, has seted up bayonet 211 on each extension piece 21, as shown in fig. 7, has the extension post 116 of backward extension on the front panel 11 rear surface, and front panel 11 offers the first socket 112 that extends along the axial direction of extending post 116 on the position that corresponds extension post 116, and first socket 112 has two, is located cavity 114 and is located between opening 111 and the recess 115. As shown in fig. 2 and fig. 3, the extending member 21 is inserted into the corresponding first insertion hole 112, and a protrusion 1121 which is engaged with the bayonet 211 is disposed on an inner side wall of each first insertion hole 112. A first step portion 1122 is formed by partially recessing the rear wall surface of the bump 1121 forward, a second step portion 2111 matched with the first step portion 1122 is formed on the inner side wall of the bayonet 211, and when the extension piece 21 is located in the corresponding first socket 112, the second step portion 2111 on the bayonet 211 is contacted with the corresponding first step portion 1122 and hooked together, so that the bayonet 211 is limited from being separated from the bump 1121.

As shown in fig. 9 and 10, four of the protruding columns 22 are arranged at intervals along the circumferential direction, the extending pieces 21 are located between two adjacent protruding columns 22, and a latch 221 is formed on a side wall of each protruding column 22, as shown in fig. 6 to 8, the front panel 11 is provided with a second socket 113 for the corresponding protruding column 22 to be inserted therein and to be latched with the latch 221, and the second socket 113 is located between the opening 111 and the groove 115 and located inside the groove 115; the second insertion opening 113 is arranged to be spaced apart from the first insertion opening 112. In the state that the transparent window 2 is installed in the cavity, as shown in fig. 4, the convex column 22 is inserted into the corresponding second insertion opening 113, and the latch 221 on the convex column 22 is latched with the corresponding position of the second insertion opening 113.

As shown in fig. 2, the liquid crystal display 3 is provided on the circuit board 4 and arranged corresponding to the opening 111. In order to limit the position of the liquid crystal display, as shown in fig. 3, 7 and 8, the rear wall surface of the front panel 11 has two position limiting plates 117 extending backwards, the two position limiting plates 117 are arranged oppositely, and an accommodating space 118 for accommodating the liquid crystal display 3 is formed between the two position limiting plates 117. Liquid crystal display 3 is rectangle, and two limiting plates 117 are located liquid crystal display 3 length direction's both ends about, as shown in fig. 7, wherein are provided with strengthening rib 5 between at least one limiting plate 117 and the relative wallboard of rampart 12, and strengthening rib 5 has a plurality ofly, and interval arrangement about the width direction of liquid crystal display 3 to the both ends of strengthening rib 5 are connected with limiting plate 117 and the corresponding wallboard of rampart 12 respectively.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims (10)

1. An electricity meter cover with a transparent window comprises

A cover body (1) with an opening (111) opened on a front panel (11);

a transparent window (2) provided at the opening (111) to close the opening (111);

at least two extending pieces (21) which are arranged at intervals along the circumferential direction, are arranged on the rear surface of the transparent window (2) and extend backwards;

the first socket (112) is arranged corresponding to the extension piece (21), is arranged on the front panel (11), is positioned at the periphery of the opening (111), and is used for inserting the extension piece (21);

the method is characterized in that: the bayonet socket (211) and the lug (1121) which are matched and matched with each other in a clamping manner are arranged between the first socket (112) and the corresponding extension piece (21), and a first step portion (1122) which is abutted to the bayonet socket (211) and limits the separation of the bayonet socket (211) and the lug (1121) is arranged on the surface, contacted with the bayonet socket (211), of the lug (1121).

2. An electricity meter cover as in claim 1, wherein: the bayonet (211) is arranged on the extension piece (21), the lug (1121) is arranged on the inner side wall of the first socket (112), and the first step part (1122) is formed on the rear wall surface of the lug (1121).

3. An electricity meter cover as in claim 2, wherein: the rear surface of front panel (11) has the extension post (116) that extends backward, first socket (112) run through establish extend the axial direction of post (116).

4. An electricity meter cover as in claim 2, wherein: a second step part (2111) matched with the first step part (1122) is formed on the inner side wall of the bayonet (211) at a position corresponding to the first step part (1122).

5. The electricity meter cover according to any of claims 1 to 4, wherein: the rear surface of transparent window (2) has backward extension's projection (22), be formed with fixture block (221) on the lateral wall of projection (22), front panel (11) are seted up and are supplied to correspond projection (22) insert wherein and with second socket (113) of fixture block (221) looks joint, second socket (113) are located the periphery of opening (111), and with first socket (112) interval arrangement.

6. The electricity meter cover of claim 5, wherein: the number of the second inserting openings (113) is at least two, and the second inserting openings are arranged at intervals along the circumferential direction, and the first inserting openings (112) are positioned between two adjacent second inserting openings (113).

7. An electricity meter cover as in claim 1, wherein: the front surface of the front panel (11) is recessed backwards to form a cavity (114) for accommodating the transparent window (2), and the opening (111) is formed in the cavity (114).

8. The electricity meter cover of claim 7, wherein: recess (114) are inside to be located the outside of opening (111) has backward sunken and along the recess (115) of circumference extension, the border of transparent window (2) extends backward to be formed with and inserts and locate annular picture peg (23) in recess (115).

9. An electricity meter having the cover of any one of claims 1 to 8, wherein: still include liquid crystal display (3) and circuit board (4), liquid crystal display (3) set up on circuit board (4), and correspond opening (111) and arrange, the back wall of front panel (11) has limiting plate (117) of backward extension, limiting plate (117) have two, and relative arrangement, two be formed with the holding between limiting plate (117) accommodation space (118) of liquid crystal display (3).

10. An electricity meter in accordance with claim 9, wherein: liquid crystal display (3) are the rectangle, two limiting plate (117) are located liquid crystal display (3) length direction's both ends, the week of front panel (11) has rampart (12) of backward extension, is provided with strengthening rib (5) between the relative wallboard of at least one limiting plate (117) and rampart (12) wherein.

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