CN108566745B - Controller of meter - Google Patents

Controller of meter Download PDF

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Publication number
CN108566745B
CN108566745B CN201810338646.9A CN201810338646A CN108566745B CN 108566745 B CN108566745 B CN 108566745B CN 201810338646 A CN201810338646 A CN 201810338646A CN 108566745 B CN108566745 B CN 108566745B
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CN
China
Prior art keywords
power supply
cover
box body
controller
power
Prior art date
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Active
Application number
CN201810338646.9A
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Chinese (zh)
Other versions
CN108566745A (en
Inventor
祁二骆
丁渊明
王志禹
聂西利
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Goldcard Smart Group Co Ltd
Original Assignee
Goldcard Smart Group Co Ltd
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Filing date
Publication date
Application filed by Goldcard Smart Group Co Ltd filed Critical Goldcard Smart Group Co Ltd
Priority to CN201810338646.9A priority Critical patent/CN108566745B/en
Publication of CN108566745A publication Critical patent/CN108566745A/en
Application granted granted Critical
Publication of CN108566745B publication Critical patent/CN108566745B/en
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0221—Locks; Latches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses a controller of a meter, which belongs to the technical field of metering equipment and solves the problem that a battery cover of the existing meter controller is inconvenient to open and close. According to the scheme of the invention, the power supply cover is locked with the box body through the movable latch component, and the opening and closing operation of the power supply cover can be rapidly completed without tools only by pushing the latch component away from the box body when the cover is opened, so that the power supply cover is easy to be opened and closed by one hand of an operator, and the time and the labor are saved.

Description

Controller of meter
[ field of technology ]
The invention relates to the technical field of metering equipment, in particular to a controller of a meter.
[ background Art ]
The prior meter (such as a gas meter) comprises a base meter and a controller arranged on the base meter, wherein the controller is mainly used for controlling the base meter to work, reading a card, displaying metering data and the like, and for ensuring use safety, the controller is powered by a battery to maintain work, the controller is provided with a battery compartment for installing the battery, a battery cover is covered after the battery is installed, and the battery cover is fixed in a screw or buckle clamping manner. Because the battery is used for supplying power, when the electric quantity of the battery is insufficient, the battery cover is required to be opened to replace the battery, if the battery cover is fixed by adopting a screw, the battery cover is required to be opened and closed by means of a tool, and the operation is complex and the working efficiency is low; if the battery cover is fixed in a buckling manner, the battery cover is required to be pressed forcefully when the battery cover is closed, the battery cover is required to be broken off forcefully, the buckling and the battery cover are easy to deform when the battery cover is opened and closed, and the buckling strength can be weakened when the battery cover is opened and closed for many times, so that the closing effect of the battery cover is affected. Therefore, it is necessary to optimize the fixing manner of the battery cover so as to facilitate the opening and closing of the battery cover.
[ invention ]
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a controller of a meter, which is convenient for the opening and closing operation of a battery cover.
In order to solve the technical problems, the invention adopts the following technical scheme:
the controller of the meter comprises a box body, a control part and a power supply part for supplying power to the control part, wherein the box body is provided with a power supply bin for accommodating the power supply part and a power supply cover for covering the power supply bin, a latch piece is arranged on the power supply cover, a slot is arranged on the box body, the power supply cover or the box body is provided with an elastic piece, the latch piece is plugged with the slot to lock the power supply cover on the box body, the latch piece is driven to be separated from the box body, and the elastic piece pushes the power supply cover to be opened.
In the controller of the meter, the plug pin member comprises an operation part, a sliding part and a plug, wherein the sliding part is connected between the operation part and the plug, the power supply cover is provided with an assembly hole, the operation part is positioned in the assembly hole, and the sliding part is positioned at the inner side of the power supply cover.
In the controller of the meter, a boss is arranged on the inner side of the power supply cover, the boss shields the assembly hole and is used for supporting the operation part, and a notch avoiding the sliding part is formed in the boss.
In the controller of the meter, a return spring for resetting the bolt member is connected between the boss and the sliding part.
In the controller of the meter, the return spring is flat, a first mounting groove is formed in the sliding portion, a second mounting groove is formed in the boss, one end of the return spring is inserted into the first mounting groove, and the other end of the return spring is inserted into the second mounting groove.
In the controller of the meter, the inner side surface of the power supply cover is provided with a guide groove, the sliding part is matched with the guide groove, and two sides of the guide groove are provided with limiting blocks for limiting the sliding part.
In the controller of the meter, the width of the plug is smaller than or equal to the spacing between limiting blocks at two sides of the guide groove.
In the controller of the gauge, the length of the sliding part is L1, and the distance from the limiting block to the deepest part of the notch is L2, wherein L1-L2 is more than or equal to 0 and less than or equal to 2mm.
In the controller of the meter, the plug is a protruding block protruding out of the front end face of the sliding part, and the protruding block is inserted into the slot.
In the controller of the meter, one side of the power supply cover is rotationally connected with the box body through a rotating shaft, a positioning column is arranged on the other side of the power supply cover, the elastic piece is a spring, the spring is sleeved and fixed on the positioning column, and when the power supply cover is locked on the box body, the spring is propped against the box body; or, power lid one side with the box body rotates through the pivot to be connected, the elastic component is the torsional spring, the torsional spring suit is in the pivot, torsional spring one end is connected the power lid, the torsional spring other end is connected the box body.
The invention has the beneficial effects that:
the controller of the meter comprises a box body, a control part and a power supply part for supplying power to the control part, wherein the box body is provided with a power supply bin for accommodating the power supply part and a power supply cover for covering the power supply bin, a latch piece is arranged on the power supply cover, a slot is arranged on the box body, an elastic piece is arranged on the power supply cover or the box body, the latch piece is inserted with the slot to lock the power supply cover on the box body, the latch piece is driven to be separated from the box body, and the elastic piece pushes the power supply cover to be opened.
According to the scheme of the invention, the power supply cover is locked with the box body through the movable latch component, and the opening and closing operation of the power supply cover can be rapidly completed without tools by pushing the latch component away from the box body when the cover is opened, so that the power supply cover is easy to be opened and closed by an operator with one hand, and the time and the labor are saved; the power supply cover is locked by inserting the latch component into the slot of the box body, so that the power supply cover can not deform when being opened or closed, and the good cover closing effect can be still maintained after the power supply cover is used for many times; according to the invention, the elastic piece is arranged on the power supply cover or the box body, the power supply cover is opened by the elastic force of the elastic piece after the plug pin piece is separated from the box body, the unlocking and opening of the power supply cover can be completed by pushing the action of the plug pin piece, the operation of opening the power supply cover after unlocking is omitted, and the power supply cover opening operation is more convenient.
Further, the plug pin piece comprises an operation part, a sliding part and a plug, wherein the sliding part is connected between the operation part and the plug, an assembly hole is formed in the power supply cover, the operation part is located in the assembly hole, and the sliding part is located at the inner side of the power supply cover. Only the operation part of the latch component is exposed in the assembly hole, so that the integrity of the appearance shape of the power supply cover is maintained; the assembly hole has the functions of protecting and guiding the operation part, so that the probability of accidentally pushing away the latch component is reduced, and an operator can more easily identify the operation mode of the latch component according to the position of the operation part in the assembly hole.
Further, a boss is arranged on the inner side of the power supply cover, the boss shields the assembly hole and is used for supporting the operation part, and a notch avoiding the sliding part is formed in the boss. The boss supports the operation part, so that the operation part can stably slide in the assembly hole, and the operation handfeel is improved; the notch is arranged on the boss, the sliding part is allowed to pass through the notch for assembly, meanwhile, the movable allowance of the bolt piece is increased, and the assembly difficulty is reduced.
Further, a reset spring for resetting the bolt piece is connected between the boss and the sliding part. The latch component is automatically reset to the position where the latch component is inserted into the slot by virtue of the reset spring, the insertion state of the latch component and the slot is kept under the state that the power cover is locked in the box body, and the power cover is reliable.
Further, the reset spring is flat, a first mounting groove is formed in the sliding portion, a second mounting groove is formed in the boss, one end of the reset spring is inserted into the first mounting groove, and the other end of the reset spring is inserted into the second mounting groove. The flat reset spring has lower requirement on the installation space, is suitable for being assembled in a narrow space, can be designed to be lighter and thinner, and is more compact to assemble on the power cover; one end of the reset spring is inserted into the first mounting groove of the sliding part, and the other end of the reset spring is inserted into the second mounting groove of the boss, so that the reset spring is not easy to distort, and the latch component is ensured to slide smoothly.
Furthermore, the inner side surface of the power supply cover is provided with a guide groove, the sliding part is matched with the guide groove, and two sides of the guide groove are provided with limiting blocks for limiting the sliding part. The sliding part is matched with the guide groove to prevent the bolt piece from swinging left and right when sliding, so that the linear reciprocating sliding of the bolt piece is ensured, the limiting blocks at two sides of the guide groove limit the sliding part, the vertical shaking is prevented when the bolt piece slides, the linear reciprocating sliding stability of the bolt piece is ensured, and the operation hand feeling of the bolt piece is improved.
Further, the width of the plug is smaller than or equal to the spacing between limiting blocks on two sides of the guide groove. When the latch component is assembled, the plug can pass through the gap between the two limiting blocks so as to allow the sliding part to be inserted into the guide groove in a flat manner, and the assembly difficulty is reduced.
Further, the length of the sliding part is L1, and the distance from the limiting block to the deepest part of the notch is L2, wherein L1-L2 is more than or equal to 0 and less than or equal to 2mm. Preventing the latch from falling out of the guide groove after the latch is separated from the box body.
These features and advantages of the present invention will be disclosed in detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a partially exploded view of a controller case according to a first embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of the first embodiment of the invention when the power cover is locked to the case;
FIG. 3 is a side view of a latch member according to a first embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
FIG. 5 is a partial cross-sectional view of a power cap assembly hole according to a first embodiment of the present invention;
fig. 6 is a schematic partial view of an inner side of a power cover according to a first embodiment of the invention.
Reference numerals:
100 boxes, 110 power supply bins, 120 slots, 121 upper eaves
200 power supply cover, 210 assembly hole, 220 boss, 221 notch, 222 second mounting groove, 230 guide groove, 240 limiting block, 250 positioning column and 251 annular clamping groove
300 power supply part
400 latch member, 410 operating portion, 420 sliding portion, 421 first mounting groove, 430 plug, 431 guide slope
500 reset spring
600 spring
[ detailed description ] of the invention
The invention provides a meter controller, which comprises a box body, a control part and a power supply part for supplying power to the control part, wherein the box body is provided with a power supply bin for accommodating the power supply part and a power supply cover for covering the power supply bin, a latch piece is arranged on the power supply cover, a slot is arranged on the box body, an elastic piece is arranged on the power supply cover or the box body, the latch piece is inserted with the slot to lock the power supply cover on the box body, the latch piece is driven to be separated from the box body, and the elastic piece pushes the power supply cover to be opened. According to the scheme of the invention, the power supply cover is locked with the box body through the movable latch component, and the opening and closing operation of the power supply cover can be rapidly completed without tools by pushing the latch component away from the box body when the cover is opened, so that the power supply cover is easy to be opened and closed by an operator with one hand, and the time and the labor are saved; the power supply cover is locked by inserting the latch component into the slot of the box body, so that the power supply cover can not deform when being opened or closed, and the good cover closing effect can be still maintained after the power supply cover is used for many times; according to the invention, the elastic piece is arranged on the power supply cover or the box body, the power supply cover is opened by the elastic force of the elastic piece after the plug pin piece is separated from the box body, the unlocking and opening of the power supply cover can be completed by pushing the action of the plug pin piece, the operation of opening the power supply cover after unlocking is omitted, and the power supply cover opening operation is more convenient.
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Example 1
Referring to fig. 1 and 2, a meter controller according to an embodiment of the present invention includes a case 100, a control unit, and a power supply unit 300 for supplying power to the control unit, where the case 100 includes a power supply compartment 110 for accommodating the power supply unit 300 and a power supply cover 200 for covering the power supply compartment 110, and the power supply unit 300 generally refers to a small-sized power storage device capable of supplying electric power, typically a battery, and the meter according to the present embodiment is a gas meter, and the independent power supply unit 300 is used for supplying power to the control unit in consideration of safety in use of the gas meter, and when the electric quantity of the power supply unit 300 is insufficient, the power supply cover 200 needs to be opened for replacement. The rear side of the power cover 200 is rotatably connected with the box body 100 through a rotating shaft, for example, a pair of rotating shafts are arranged on the rear side of the power cover 200, a pair of shaft holes are correspondingly arranged on the box body 100, the rotating shafts are inserted into the shaft holes, the power cover 200 can turn over on the box body 100 around the rotating shafts, and when the power cover 200 is opened, the power cover 200 is still kept in a connection state with the box body 100, so that the problem of falling and losing after the power cover 200 is opened is prevented; the power cover 200 is provided with a latch member 400 near the front side thereof, the case 100 is provided with a slot 120, the latch member 400 is engaged with the slot 120 to lock the power cover 200 on the case 100, and the latch member 400 is driven to release the lock of the power cover 200 when the latch member 400 is separated from the case 100.
Referring to fig. 2 to 6, the latch 400 of the present embodiment includes an operation portion 410, a sliding portion 420 and a plug 430, wherein the sliding portion 420 is connected between the operation portion 410 and the plug 430, and the plug 430 is a protrusion protruding from a front end surface of the sliding portion 420, and the protrusion is used for being inserted into the slot 120; the power cover 200 is provided with a fitting hole 210, the operating part 410 is positioned in the fitting hole 210, and the sliding part 420 is positioned inside the power cover 200. Preferably: the assembly hole 210 is a kidney-shaped hole, the operation portion 410 is circular, and the operation portion 410 can slide back and forth in the assembly hole 210, so that the plug 430 is driven by the sliding portion 420 to be inserted into the slot 120 or separated from the slot 120. In the above-mentioned scheme, only the operation portion 410 of the latch member 400 is exposed in the assembly hole 210, so as to facilitate maintaining the integrity of the appearance of the power cover 200; the assembly hole 210 has protection and guiding functions on the operation part 410, so that the probability that the latch member 400 is accidentally pushed away is reduced, and an operator can more easily identify the operation mode of the latch member 400 according to the position of the operation part 410 in the assembly hole 210, for example, a protruding cover opening mark is arranged on the upper surface of the operation part 410 and used for indicating the cover opening sliding direction of the operation part 410, and the operation anti-slip function is achieved.
Referring to fig. 2 to 6, a boss 220 is provided at the inner side of the power cover 200, the boss 220 shields the assembly hole 210 for supporting the operation part 410, a notch 221 for avoiding the sliding part 420 is provided on the boss 220, and the boss 220 supports the operation part 410, so that the operation part 410 can slide in the assembly hole 210 smoothly, and the operation feel is improved; the boss 220 is provided with a notch 221, allowing the sliding portion 420 to pass through the notch 221 for assembly, and also increasing the play margin of the latch member 400, reducing the difficulty of assembly, and the specific assembly is described in detail in the following embodiments. It should be noted that: in this embodiment, the inner side of the power cover 200 is the side of the power cover 200 facing the power bin 110, the outer side of the power cover 200 is the side of the power cover 200 facing away from the power bin 110, and as shown in fig. 2, the controller is in a lying state, the inner side of the power cover 200 is the lower surface of the power cover 200, and the outer side of the power cover 200 is the upper surface of the power cover 200.
A return spring 500 for returning the latch member 400 is connected between the boss 220 and the sliding portion 420, and the latch member 400 is automatically returned to the position where it is inserted into the slot 120 by means of the return spring 500, and as shown in fig. 2, the inserted state of the latch member 400 and the slot 120 is maintained in the state where the power cover 200 is locked to the case 100, and the power cover 200 is reliably closed. The return spring 500 of the embodiment is flat, the sliding portion 420 is provided with the first mounting groove 421, the boss 220 is provided with the second mounting groove 222, one end of the return spring 500 is inserted into the first mounting groove 421, the other end of the return spring 500 is inserted into the second mounting groove 222, the flat return spring 500 has lower requirement on the mounting space and is suitable for being assembled in a narrow space, the plug pin member 400 can be designed to be lighter and thinner, and the assembly on the power cover 200 is more compact; one end of the return spring 500 is inserted into the first mounting groove 421 of the sliding portion 420, and the other end is inserted into the second mounting groove 222 of the boss 220, and the return spring 500 is not easily distorted, thereby ensuring smooth sliding of the latch member 400. In other embodiments, the return spring may be a conventional coil spring or the like.
The inner side of the power cover 200 is provided with a guide groove 230, the sliding part 420 is matched in the guide groove 230, and two sides of the guide groove 230 are provided with limiting blocks 240 for limiting the sliding part 420. Specifically, the guide groove 230 is formed by the concave inner side surface of the power cover 200, and extends from the assembly hole 210 to the front end surface of the power cover 200, and the sliding part 420 is wholly or partially matched in the guide groove 230, so that the latch piece 400 is prevented from deflecting left and right when sliding, and the linear reciprocating sliding of the latch piece 400 is ensured; the stoppers 240 at both sides of the guide groove 230 support both side edge portions of the sliding portion 420, preventing the latch member 400 from shaking up and down when sliding, and ensuring the smoothness of the linear reciprocating sliding of the latch member 400, thereby improving the operational feeling of the latch member 400.
Based on the above-mentioned scheme, in order to facilitate the assembly of the latch member 400, the width of the plug 430 of the latch member 400 in this embodiment is smaller than or equal to the spacing between the stoppers 240 on both sides of the guide slot 230, and when the latch member 400 is assembled, the plug 430 may pass through the gap between the two stoppers 240, so as to allow the sliding portion 420 to be inserted into the guide slot 230, thereby reducing the assembly difficulty. However, in other embodiments, when the sliding portion has a certain elastic deformation capability, the sliding portion may be locked in the guide groove by elastic deformation of the sliding portion, regardless of the dimensional relationship between the plug and the stoppers on both sides of the guide groove.
In this embodiment, when assembling the latch assembly 400, the sliding portion 420 is first inserted into the assembly hole 210 and the notch 221 from outside to inside, the sliding portion 420 is inserted into the guide slot 230 along the extending direction of the guide slot 230 and is pushed horizontally to the rightmost end, i.e. the position shown in fig. 2, at this time, the sliding portion 420 has the maximum distance from the notch 221 of the boss 220, and then one end of the return spring 500 is inserted into the first mounting slot 421, and the other end is inserted into the second mounting slot 222, so as to complete the assembly of the latch assembly 400 and the power cover 200.
The upper surface of the plug 430 in this embodiment is a plane, the front end surface of the plug 430 is inclined to the lower surface to excessively form a guiding inclined plane 431, when the plug 430 of the plug pin 400 is inserted into the slot 120, the upper surface of the plug 430 can be reliably attached to the upper eave 121 of the slot 120, so as to ensure the capping effect; when the power cover 200 is covered, the power cover 200 is directly pressed downwards without pushing the operation part 410, and the latch member 400 is elastically retracted by pressing the guide inclined plane 431 by the upper eave 121 of the slot 120, so that the plug 430 is inserted into the slot 120.
According to the above assembly method, in order to reduce interference of the stopper 240 on the sliding portion 420, the stopper 240 is located closer to the plug 430 than the operation portion 410, and the sliding portion 420 has a length L1, and a distance from the stopper 240 to the deepest portion of the notch 221 is L2, 0+.l1-l2+.ltoreq.2 mm, as can be understood with reference to fig. 2: under the condition that L1-L2 is more than 0 and less than or equal to 2mm, when the operation part 410 drives the plug 430 to slide leftwards through the sliding part 420 until the left end of the sliding part 420 is propped against the deepest part of the notch 221, the limiting block 240 can still prop against part of the sliding part 420, so that the latch piece 400 is prevented from being separated from the guide groove 230 after being separated from the box body 100; under the condition of L1-l2=0, when the operation portion 410 drives the plug 430 to slide leftwards through the sliding portion 420 until the left end of the sliding portion 420 is propped against the deepest portion of the notch 221, the stopper 240 does not prop against the sliding portion 420, but the supporting of the boss 220 on the operation portion 410 and the acting force of the return spring 500 on the sliding portion 420 can still maintain the horizontal state of the latch member 400, and the latch member 400 is only briefly maintained at the position, and after the operation portion 410 is released, the latch member 400 is immediately reset, so that the situation that the latch member 400 is separated from the guide groove 230 after the box body 100 is separated is avoided. In addition, the present embodiment limits the difference between L1 and L2 to within 2mm, which allows the sliding portion 420 to be fitted into the guide groove 230 in a flat or slightly arched state after passing through the fitting hole 210, preventing the sliding portion 420 from being excessively bent to be broken when being mounted.
The inner side of the power cover 200 of the present embodiment is further provided with an elastic member, and when the driving latch member 400 is separated from the box body 100, the elastic member pushes the power cover 200 to open. The unlocking and opening of the power cover 200 can be completed by pushing the latch member 400, so that the operation of opening the power cover 200 after unlocking is avoided, the opening operation of the power cover 200 is more convenient, and specifically: referring to fig. 1, 2 and 6, the elastic member in this embodiment is a spring 600, a pair of positioning posts 250 are disposed on the front side portion of the power cover 200 near the front side portion thereof, an annular clamping groove 251 is formed on the positioning posts 250, the spring 600 is sleeved on the positioning posts 250 and is partially fixed in the annular clamping groove 251, when the power cover 200 is locked on the box 100, the lower end of the spring 600 abuts against the box 100 to compress the spring 600, so as to provide an elastic force for opening the power cover 200 when the latch member 400 is separated from the box 100. Because the rear side of the power cover 200 is rotatably connected with the box body 100 in this embodiment, when the latch member 400 is disengaged from the box body 100, the spring 600 can spring the power cover 200 to a certain angle, and the operator can further flip the power cover 200 to a larger angle, so as to replace the power supply. The spring 600 has good elastic recovery capability, is easy to obtain and has low cost, and it can be understood that: the elastic member may also be a rubber sleeve, a silicone block, or other suitable elastic body instead of the spring.
Example two
The present embodiment is different from the first embodiment in that: in the embodiment, the elastic piece is arranged on the box body, and when the latch piece is driven to be separated from the box body, the elastic piece pushes the power cover to be opened. For example: the upper surface of the box body matched with the power supply cover is provided with a spring or an elastic ejector rod, when the power supply cover is locked on the box body, the upper end of the spring or the elastic ejector rod is propped against the power supply cover, and when the bolt piece is separated from the box body, the spring or the elastic ejector rod pushes the power supply cover upwards.
Example III
The present embodiment is different from the first embodiment in that: the elastic component of this embodiment is the torsional spring, and the torsional spring suit is in the pivot of power lid rear side, and torsional spring one end is connected to the power lid on, and the torsional spring other end is connected to the box body on, and when the power lid was locked on the box body, the torsional spring compression was twisted, and when the bolt piece broke away from the box body, the torsional force was released to the torsional spring and was bounced the power lid.
The embodiment of the invention can be applied to other metering instruments such as an ammeter, a water meter, a heat meter and the like besides the gas meter.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.

Claims (9)

1. The controller of the meter comprises a box body, a control part and a power supply part for supplying power to the control part, wherein the box body is provided with a power supply bin for accommodating the power supply part and a power supply cover for covering the power supply bin; the plug pin piece comprises an operation part, a sliding part and a plug, wherein the sliding part is connected between the operation part and the plug, an assembly hole is formed in the power supply cover, the operation part is positioned in the assembly hole, and the sliding part is positioned at the inner side of the power supply cover; the assembly hole is a kidney-shaped hole, the operation part is circular, and the operation part can slide back and forth in the assembly hole.
2. The controller of a meter according to claim 1, wherein a boss is provided on the inner side of the power supply cover, the boss shields the fitting hole for supporting the operation portion, and a notch is provided on the boss for avoiding the sliding portion.
3. The meter controller of claim 2, wherein a return spring for returning the latch member is connected between the boss and the slide.
4. A controller for a meter according to claim 3, wherein the return spring is flat, a first mounting groove is provided on the sliding portion, a second mounting groove is provided on the boss, one end of the return spring is inserted into the first mounting groove, and the other end of the return spring is inserted into the second mounting groove.
5. The controller of a meter according to claim 2, wherein the inner side surface of the power supply cover is provided with a guide groove, the sliding part is matched in the guide groove, and two sides of the guide groove are provided with limiting blocks for limiting the sliding part.
6. The controller of a meter of claim 5, wherein the plug has a width less than or equal to the spacing of the stoppers on both sides of the guide slot.
7. The controller of a meter according to claim 6, wherein the length of the sliding part is L1, and the distance from the limiting block to the deepest part of the notch is L2, and L1-L2 is more than or equal to 0 and less than or equal to 2mm.
8. The controller of a meter of claim 1 wherein said plug is a projection projecting from a front face of said slide, said projection being engaged with said slot.
9. The controller of one of claims 1 to 8, wherein one side of the power supply cover is rotatably connected with the box body through a rotating shaft, a positioning column is arranged on the other side of the power supply cover, the elastic piece is a spring, the spring is sleeved and fixed on the positioning column, and when the power supply cover is locked on the box body, the spring is propped against the box body; or, power lid one side with the box body rotates through the pivot to be connected, the elastic component is the torsional spring, the torsional spring suit is in the pivot, torsional spring one end is connected the power lid, the torsional spring other end is connected the box body.
CN201810338646.9A 2018-04-16 2018-04-16 Controller of meter Active CN108566745B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2777908Y (en) * 2004-12-30 2006-05-03 深圳富泰宏精密工业有限公司 Cell cover structure for portable electronic apparatus
CN202274903U (en) * 2011-09-28 2012-06-13 河南新天科技股份有限公司 Wireless intelligent gas meter controller structure
CN105493006A (en) * 2013-08-30 2016-04-13 三星电子株式会社 Electronic device having curved bottom and operation method therefor
CN208093871U (en) * 2018-04-16 2018-11-13 金卡智能集团股份有限公司 The controller and its gauge table of gauge table

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2777908Y (en) * 2004-12-30 2006-05-03 深圳富泰宏精密工业有限公司 Cell cover structure for portable electronic apparatus
CN202274903U (en) * 2011-09-28 2012-06-13 河南新天科技股份有限公司 Wireless intelligent gas meter controller structure
CN105493006A (en) * 2013-08-30 2016-04-13 三星电子株式会社 Electronic device having curved bottom and operation method therefor
CN208093871U (en) * 2018-04-16 2018-11-13 金卡智能集团股份有限公司 The controller and its gauge table of gauge table

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