CN209821281U - Single-phase three-wire electronic electric energy meter - Google Patents

Abstract

The utility model discloses a single-phase three-way electronic energy meter, including a drain pan, a face-piece is installed to the upper end of drain pan, and the centre of face-piece sets up an intermediate part, and the top of intermediate part sets up a sunken display screen, and the bottom of intermediate part sets up an overhaul chamber, overhaul intracavity installation push-and-pull plate and through the sealed whole chamber of overhauing of push-and-pull plate, run through from top to bottom in the centre of intermediate part and set up a logical groove, the push-and-pull plate part inserts in leading to the groove, on the opposite side fixed mounting drain pan of push-and-pull plate, set up a rectangular cavity that runs through the face-piece on being located the face-piece of display screen upper end. The utility model discloses when overhauing, saved the area of turning on one's side of push-and-pull plate, can be applied to in the narrow and small space of area to when dismantling the face-piece, as long as promote the push-and-pull plate and can open the face-piece, carry out the large tracts of land and overhaul, dismantle and overhaul very convenient.

Description

Single-phase three-wire electronic electric energy meter

Technical Field

The utility model relates to an electric energy meter, concretely relates to single-phase three-wire electronic electric energy meter.

Background

An electric energy meter is an instrument for measuring electric energy, also called watt-hour meter, fire meter, kilowatt-hour meter, and refers to instruments for measuring various electric quantities. The structure of the existing electric energy meter comprises a liquid crystal display screen and a wiring area, wherein the two areas are separately and independently arranged. In order to increase the security, can all install a safety cover in the outside of liquid crystal display and wiring district, all pass through the screw fixation between the shell of safety cover and electric energy meter, consequently when overhauing, need dismouting screw, unusual inconvenience.

In addition, when the overhaul area is overhauled, the protective cover needs to be opened, the protective cover is generally completely opened or opened by rotating one side, and if the space is small, the protective cover is opened by rotating one side to occupy the space; if the protective cover is completely removed, the screws need to be held and the protective cover needs to be removed, and manpower is occupied.

Disclosure of Invention

The utility model aims to solve the technical problem that a single-phase three-way electronic energy meter adopts simpler hidden locking mode, very convenience on the dismouting, and when opening and overhauing the maintenance area, can not because safety cover occupation space.

The utility model discloses a realize through following technical scheme: a single-phase three-wire electronic electric energy meter comprises a bottom shell, wherein a face shell is installed at the upper end of the bottom shell, a middle part is arranged in the middle of the face shell, a sunken display screen is arranged at the top part of the middle part, an overhaul cavity is arranged at the bottom part of the middle part, a push-pull plate is installed in the overhaul cavity and seals the whole overhaul cavity through the push-pull plate, a through groove is formed in the middle of the middle part in a vertically penetrating mode, the push-pull plate is partially inserted into the through groove, a rectangular cavity penetrating through the face shell is formed in the face shell at the upper end of the display screen and fixedly installed on the bottom shell at the other side of the push-pull plate, the top part of the rectangular cavity faces the through groove and is provided with a slot, the push-pull plate penetrates through the through groove and stretches into the slot, the whole face shell is rotatably.

As a preferable technical scheme, the push-pull plate extends into the slot and contacts with the locking mechanism in the slot, and the push-pull plate jacks up the locking mechanism and enables the locking position of the face shell and the bottom shell to be separated.

As preferred technical scheme, locking mechanism includes a fixed plate, location knot and a retaining member, the fixed plate sets up on the drain pan and protrusion in the outside of drain pan, sets up a first through-hole that supplies the retaining member to pass the usefulness in the middle of the fixed plate, the retaining member passes first through-hole and stretches into in inside through the second through-hole at face-piece top, and it stretches into the end and detains the location through two location and fixes.

As preferred technical scheme, interference fit between second through-hole and the retaining member, the location is detained the bottom and is provided with the portion of bending, through screw fixed mounting on the bottom surface of face-piece slot in the portion of bending, and the opposite face of location knot all sets up a spherical convex part, is provided with corresponding spherical concave part to spherical convex part's retaining member both sides, and spherical convex part is detained and is fixed a position in spherical concave part.

As a preferred technical scheme, the positioning buckle is made of elastic metal materials.

As the preferred technical scheme, the retaining member is T-shaped, the outer side end of the retaining member slightly protrudes out of the top end face of the fixing plate, the fixing plate and the bottom shell are of an integrated structure, and a rectangular notch is formed in the surface shell opposite to the fixing plate.

According to the preferable technical scheme, one side, far away from the real screen, of the push-pull plate is provided with a protruding holding and pinching part, the bottom of the protruding holding and pinching part is provided with a connecting convex part, a connecting concave part is arranged on the face shell opposite to the connecting convex part, and the connecting convex part is buckled in the connecting concave part and fixed through screws.

As the preferred technical scheme, the bottom of the face shell is provided with a rotating part, two sides of the rotating part are respectively provided with a rotating shaft, the bottom shell right facing the rotating part is provided with a rotating groove, two sides of the rotating groove are respectively provided with a rotating shaft hole, and the rotating shafts are rotatably arranged in the rotating shaft holes.

The utility model has the advantages that: the utility model discloses when overhauing, saved the area of turning on one's side of push-and-pull plate, can be applied to in the narrow and small space of area to when dismantling the face-piece, as long as promote the push-and-pull plate and can open the face-piece, carry out the large tracts of land and overhaul, dismantle and overhaul very convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention in a sealing state;

fig. 2 is a schematic structural view of the push-pull plate according to the present invention in an open state;

fig. 3 is an assembly view of the positioning buckle and the locking member of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the portable electronic device comprises a bottom shell 22, a front shell 12 is mounted on the upper end of the bottom shell 22, a middle portion 6 is disposed in the middle of the front shell 12, a recessed display 7 is disposed on the top of the middle portion 6, an access chamber 13 is disposed on the bottom of the middle portion 6, a push-pull plate 1 is mounted in the access chamber 13 and seals the entire access chamber 13 through the push-pull plate 1, a through groove (not shown) is disposed through the middle of the middle portion 6, the push-pull plate 1 is partially inserted into the through groove, on the opposite side fixed mounting drain pan 22 of push-and-pull board, set up a rectangle chamber 31 that runs through the face-piece on the face-piece that is located the display screen 7 upper end, the top in rectangle chamber 31 is just facing to logical groove and is provided with a slot 15, push-and-pull board 1 passes logical groove and stretches into in slot 15, whole face-piece 12 rotates with one side of drain pan 22 to be connected, the other end of face-piece and drain pan is through a locking mechanical system locking, locking mechanical system sets up in slot 15.

In this embodiment, the push-pull plate 1 extends into the slot 15 and contacts with the locking mechanism in the slot 15, and the push-pull plate pushes the locking mechanism open and separates the locked part of the front shell and the bottom shell.

In this embodiment, as shown in fig. 2, the locking mechanism includes a fixing plate 11, a positioning fastener 12 and a locking member 9, the fixing plate 11 is disposed on the bottom shell 22 and protrudes out of the bottom shell 22, a first through hole for the locking member to pass through is disposed in the middle of the fixing plate, the locking member passes through the first through hole and passes through a second through hole at the top of the face shell to extend into the interior, and the extending end of the locking member is positioned and fixed by the two positioning fasteners 12.

Interference fit between second through-hole and retaining member 9, increase the leakproofness, the location is detained the bottom and is provided with the portion of bending, install on the bottom surface of face-piece slot through screw fixed mounting in the portion of bending, the opposite face that the location was detained all sets up a spherical convex part 21, just be provided with corresponding spherical concave part to the retaining member 9 both sides of spherical convex part 21, spherical convex part is detained and is fixed a position in spherical concave part, the location is detained 12 and is adopted elastic metal material to make, retaining member 9 is "T" font, the outside end of retaining member 9 is protruding in the top terminal surface of fixed plate a little, fixed plate 11 and drain pan 22 formula structure as an organic whole, just to seting up the notch 8 of a. When the push-pull plate is sealed, the spherical convex part is buckled in the spherical concave part, as shown in fig. 3, the top of the locking part slightly protrudes out of the fixing plate, therefore, when the push-pull plate is not pushed out, the locking part cannot protrude out of the top of the fixing plate, the locking part cannot be taken out easily, and the whole face shell cannot be opened. When the push-pull plate is closed, the push-pull plate is reset, and the locking piece is inserted again, so that the spherical convex part is buckled in the spherical concave part, and the assembly can be finished.

Wherein, the push-and-pull board is kept away from real screen one side and is set up a bellied portion 5 of holding between the fingers, and bellied 5 bottoms of holding between the fingers set up one and connect convex part 2, just set up one on the face-piece of connecting convex part 2 and connect concave part 14, connect convex part 2 and detain in connecting concave part 14 and pass through the screw fixation, dismantle down the screw and can utilize to hold between the fingers the portion and promote push-.

Wherein, the bottom of face-piece 12 sets up a rotation portion 3, and the both sides of rotation portion 3 respectively set up a pivot, just are being provided with a rotation groove on the drain pan to rotation portion, and the both sides in rotation groove respectively set up a pivot hole, and the pivot is rotated and is installed in the pivot downthehole, and the back is taken off to the retaining member at top, can overturn whole face-piece 12, and is simple and convenient. Because the push-pull plate is pushed towards the display screen, the push-pull plate does not occupy space and has no requirement on space during maintenance. The push-pull plate pushed upwards can be used for protecting the display screen, and damage to the display screen by external tools in the overhauling process is prevented.

The utility model has the advantages that: the utility model discloses when overhauing, saved the area of turning on one's side of push-and-pull plate, can be applied to in the narrow and small space of area to when dismantling the face-piece, as long as promote the push-and-pull plate and can open the face-piece, carry out the large tracts of land and overhaul, dismantle and overhaul very convenient.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (8)

1. A single-phase three-wire electronic electric energy meter is characterized in that: the multifunctional display cabinet comprises a bottom shell, a face shell is installed at the upper end of the bottom shell, a middle portion is arranged in the middle of the face shell, a sunken display screen is arranged at the top of the middle portion, an overhaul cavity is arranged at the bottom of the middle portion, a push-pull plate is installed in the overhaul cavity and seals the whole overhaul cavity through the push-pull plate, a through groove is formed in the middle of the middle portion in a vertically penetrating mode, the push-pull plate is partially inserted into the through groove, a rectangular cavity penetrating the face shell is formed in the face shell, located at the upper end of the display screen, on the other side of the push-pull plate, the other side of the face shell is fixedly installed on the bottom shell, a slot is formed in the top of the rectangular cavity, the push-pull plate penetrates through the through groove and extends into the slot, the whole face shell.

2. The single-phase three-wire electronic electric energy meter of claim 1, wherein: the push-pull plate extends into the slot and contacts with the locking mechanism in the slot, and the push-pull plate jacks up the locking mechanism and enables the locking position of the face shell to be separated from the locking position of the bottom shell.

3. The single-phase three-wire electronic electric energy meter of claim 1, wherein: locking mechanism includes a fixed plate, location knot and a retaining member, the fixed plate sets up on the drain pan and protrusion in the outside of drain pan, sets up a first through-hole that supplies the retaining member to pass the usefulness in the middle of the fixed plate, the retaining member passes first through-hole and stretches into in inside through the second through-hole at face-piece top, and it stretches into the end and detains the location through two location and fixes.

4. The single-phase three-wire electronic electric energy meter of claim 3, wherein: interference fit between second through-hole and the retaining member, the location is detained the bottom and is provided with the portion of bending, through screw fixed mounting on the bottom surface of face-piece slot in the portion of bending, and the opposite face of location knot all sets up a spherical convex part, just is provided with corresponding spherical concave part to the retaining member both sides of spherical convex part, and spherical convex part is detained and is fixed a position in spherical concave part.

5. The single-phase three-wire electronic electric energy meter of claim 4, wherein: the positioning buckle is made of elastic metal materials.

6. The single-phase three-wire electronic electric energy meter of claim 3, wherein: the retaining member is "T" font, and the outside end of retaining member is protruding in the top terminal surface of fixed plate a little, and fixed plate and drain pan formula structure as an organic whole just offer the notch of a rectangle form on the face-piece of fixed plate.

7. The single-phase three-wire electronic electric energy meter of claim 1, wherein: the utility model discloses a screen of reality screen, including push-pull plate, connecting convex part, connecting concave part, connecting convex part and screw fixation, push-pull plate keeps away from reality screen one side and sets up a bellied portion of holding between the fingers, and bellied portion bottom of holding between the fingers sets up one and connects the convex part, just sets up one on the face-piece of connecting the convex part and connects the concave part, connects the convex part and detains in.

8. The single-phase three-wire electronic electric energy meter of claim 1, wherein: the bottom of face-piece sets up a rotation portion, and the both sides of rotation portion respectively set up a pivot, just are provided with a rotation groove on the drain pan to rotation portion, and the both sides in rotation groove respectively set up a pivot hole, and the pivot is rotated and is installed in the pivot downthehole.