CN201273826Y

CN201273826Y - Liquid sealing electronic direct-reading water meter

Info

Publication number: CN201273826Y
Application number: CNU2008201647381U
Authority: CN
Inventors: 沈安邦; 沈远航
Original assignee: NINGBO JINGCHENG METER CO Ltd
Current assignee: MEIZHOU ZHENSHENG MODERN AGRICULTURAL EQUIPMENT CO., LTD.
Priority date: 2008-09-16
Filing date: 2008-09-16
Publication date: 2009-07-15
Anticipated expiration: 2018-09-16

Abstract

The utility model relates to liquid seal electron direct-reading water meter, which comprises a dial with table, a photoelectric module, a counting mechanism with liquid seal character wheel, and a impeller measuring mechanism which is provided with a punch holder and a die holder. The photoelectric module is fixed on the top of a character wheel box and is separated from the character wheel by a partition plate which is provided with interval recess fixed on both side of the partition plate. A photoelectric plate of the photoelectric module fixed on the upper part and the character wheel fixed on the lower part are arranged in the corresponding recess located on each side of the partition plate. The position of the photoelectric module corresponding to the number of the character wheel is provided with an opening or is transparent. The utility model not only protect photoelectric module effectively, but also solves the defect of adopting special adhesive layer to seal the photoelectric module existing in the prior art in the premise of ensuring clearly reading. The utility model has the advantage that the process is simple, the production efficiency is improved, the production cost is reduced; the photoelectric module wire can be directly lead out, therefore leading wire is convenient, and the requirement of sealing is lower; meanwhile, the sealing of the whole photoelectric module is solved simply and quickly as long as simply sealing the wire.

Description

Liquid seal electronic direct-reading water meter

Technical field

The utility model relates to a kind of water meter, particularly a kind of water meter that can long-range Data transmission.

Background technology

Liquid seal electronic direct-reading water meter is a kind of directly reading, can realize the water meter of remote reading again, it generally comprises counting mechanism, impeller metering mechanism, described counting mechanism comprises full liquid-sealing water meter character wheel box and optical-electric module, in the character wheel box, be provided with character wheel, in the electronic module box, be provided with optical-electric module, edge at character wheel is provided with mark, optical-electric module is provided with photoelectric sensor, marking signal and signal exported to the outside by transmission line on the photoelectric sensor induction character wheel, the electronic module box places character wheel box bottom, its character wheel window is open, scale dish and character wheel all are immersed in the special liquid that is poured in the character wheel window, though its sealing better, power-assisted are arranged in character wheel dish clear reading, but because optical-electric module also is sealed in the liquid environment, therefore the seal request height is generally used sealant layer sealed photoelectric module, and the extension line of optical-electric module also will pass this liquid environment of character wheel box through glue strict seal and draw.When adopting the fluid sealant sealing,, cause liquid contact optical-electric module thus and damage these elements owing to fluid sealant long period of soaking easy inefficacy in liquid produced leakage.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the above-mentioned deficiency of prior art and a kind of liquid seal electronic direct-reading water meter is provided, make its make simple, seal request is low and good seal performance.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

Liquid seal electronic direct-reading water meter, comprise the counting mechanism of band scale dish, optical-electric module and hydraulic seal character wheel box, with the impeller metering mechanism of going up lower plate, it is characterized in that: described optical-electric module places the character wheel box top of fluid-tight, and separate by the demarcation strip and the character wheel of two side interbands every groove, the electro-optical package of the optical-electric module on top and the character wheel of bottom are placed in demarcation strip separately in the groove of a side and corresponding, on the optical-electric module with character wheel on digital corresponding position opening or transparent is set.

Opening on the above-mentioned optical-electric module is for the numeral on the character wheel of its underpart is seen through, and therefore various ways can be arranged, even can also be that the base plate of optical-electric module is transparent.

For rationally arranging the space, for character wheel is vacated the position, the impeller upper end in the above-mentioned impeller metering mechanism is installed on the lower plate.

Compared with prior art, advantage of the present utility model is:

1, by optical-electric module being placed the character wheel box top of fluid-tight; make optical-electric module break away from liquid environment fully; both protected optical-electric module effectively; again under the prerequisite that guarantees clear reading; solve original structure and need adopt the deficiency with the optical-electric module sealing such as special glue-line; and the water meter manufacturing is fairly simple, can enhance productivity, and reduces production costs.

2, because optical-electric module places character wheel box top, and the lead-in wire of optical-electric module just can directly pick out, and lead-in wire is convenient, and only need completely cut off moisture, seal request is low.Simultaneously as long as the sealing that a simple seal just can solve whole optical-electric module space easy, is apace done at the lead-in wire place.

3, the impeller shaft with metering mechanism is installed on the lower plate, can be to the reasonable arrangement of metering mechanism and the numerous parts of counting mechanism, thereby give demarcation strip more space and arranged light electroplax under existing counting mechanism such as the situations such as dial plate, character wheel, four or eight gear wheels and gear train not changing, distribute the space of water meter fully, rationally, effectively.

Description of drawings

Fig. 1 is the vertical view of the utility model embodiment.

Fig. 2 has omitted the A-A cut-open view of other structures for Fig. 1, the fiting relation figure of expression scale dish, optical-electric module and character wheel box.

Fig. 3 has omitted the B-B sectional view of other structures for Fig. 1, the fiting relation figure of expression scale dish, optical-electric module and character wheel box.

Fig. 4 is the synoptic diagram of the utility model embodiment optical-electric module.

Fig. 5 is the synoptic diagram of another embodiment optical-electric module of the utility model.

Fig. 6 is the exploded view of the utility model embodiment.

Fig. 7 is the stereographic map of the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 6, shown in Figure 7, liquid seal electronic direct-reading water meter comprises the counting mechanism of band scale dish, optical-electric module and hydraulic seal character wheel box, with the impeller metering mechanism of going up lower plate.

Described impeller metering mechanism comprises impeller 3, impeller box 2, gear train 7, gearcase 4, train wheel bridge 10, lower plate 5, the impeller shaft upper end is installed on the lower plate 5, can fully, rationally utilize the space of water meter like this, see Fig. 6, impeller box also is with screen pack 12 times.

As Fig. 2, Fig. 6, shown in Figure 7, described counting mechanism comprises optical-electric module 11, character wheel box 12, scale dish 13, pointer 14, watch glass 15,48 gear wheel groups 9, character wheel combination 8, and counting principle is identical with existing water meter.

As Fig. 2, shown in Figure 3, described optical-electric module 11 places character wheel box 12 tops of fluid-tight, optical-electric module 11 comprises module wiring board 111 and electro-optical package 112, be T-shape, straight flange is an electro-optical package 112, embeds in the groove 122 of demarcation strip 121 1 sides on the character wheel box 12, embeds character wheel combination 8 in the opposite side groove 123 of demarcation strip 121, character wheel combination 8 is corresponding with electro-optical package 112, on the module wiring board 111 with character wheel 8 on digital corresponding position character wheel see-through window 113 is set.

The character wheel see-through window of opening on the above-mentioned module wiring board 111 113 can be square type or round, and character wheel see-through window 113 also can be single or has a plurality of windows arranged side by side, sees Fig. 4, Fig. 5.

For compact conformation, reduced volume, prevent extraneous light printing opacity stray light electroplax 112, the character wheel see-through window 113 of opening of above-mentioned module wiring board 111 buckles into the wheel digital corresponding position 114 on the demarcation strip 121 of character wheel box 12.

Be similarly compact conformation, reduced volume, prevented extraneous light printing opacity stray light electroplax 112, the tail end of above-mentioned electro-optical package 112 embeds on the inner face 131 of scale dish 13.

After setting optical-electric module 11, cover scale dish 13, scale dish 13 peripheries are provided with O-ring seal 26, and the extension line on the optical-electric module 19 is drawn from scale dish 13 outsides, add watch glass 15 backs and add fluid sealant 22 sealing and fixing with pressure ring 16.

Demarcation strip 121 on the above-mentioned character wheel box is for to combine with character wheel box 12, also can be with character wheel box 12 and separate, all the other are all identical with existing fluid-tight character wheel box 12, and character wheel combination 8 and 48 gear wheels 9 are installed and wherein and by seal pad 6 used ultrasonic sealing, and in character wheel box 12 full of liquid.

For the better fixing extension line 19 of optical-electric module 11, extension line puts overcoat 18, briquetting 17 is set on pressure ring 16 extension line 19 is pressed in the top of pressure ring 16, then screw 21 is fixed together line ball piece 20 and pressure ring 16.

Claims

1, liquid seal electronic direct-reading water meter, comprise the counting mechanism of band scale dish, optical-electric module and hydraulic seal character wheel box, with the impeller metering mechanism of going up lower plate, it is characterized in that: described optical-electric module places the character wheel box top of fluid-tight, and separate by the demarcation strip and the character wheel of two side interbands every groove, the electro-optical package of the optical-electric module on top and the character wheel of bottom are placed in demarcation strip separately in the groove of a side and corresponding, on the optical-electric module with character wheel on digital corresponding position opening or transparent is set.

2, liquid seal electronic direct-reading water meter as claimed in claim 1 is characterized in that: the impeller in the described impeller metering mechanism is installed on the lower plate.

3, liquid seal electronic direct-reading water meter as claimed in claim 1 or 2 is characterized in that: the opening on the described optical-electric module is that single opening or a plurality of opening are arranged side by side.

4, liquid seal electronic direct-reading water meter as claimed in claim 3 is characterized in that: the opening on the described optical-electric module is a square type or round.

5, liquid seal electronic direct-reading water meter as claimed in claim 4 is characterized in that: the opening of described optical-electric module is opened on the module wiring board, and opening buckles into the wheel digital corresponding position on the demarcation strip of character wheel box.

6, liquid seal electronic direct-reading water meter as claimed in claim 4 is characterized in that: the tail end of the electro-optical package of described optical-electric module embeds on the inner face of scale dish.

7, liquid seal electronic direct-reading water meter as claimed in claim 5 is characterized in that: the tail end of described electro-optical package embeds on the inner face of scale dish.

8, liquid seal electronic direct-reading water meter as claimed in claim 6 is characterized in that: the extension line of described optical-electric module puts overcoat, briquetting is set on pressure ring extension line is pressed in the top of pressure ring, then screw is fixed together line ball piece and pressure ring.

9, liquid seal electronic direct-reading water meter as claimed in claim 7 is characterized in that: the extension line of described optical-electric module puts overcoat, briquetting is set on pressure ring extension line is pressed in the top of pressure ring, then screw is fixed together line ball piece and pressure ring.