CN2332998Y

CN2332998Y - Rotary wing type liquid sealing watermeter

Info

Publication number: CN2332998Y
Application number: CN 98213622
Authority: CN
Inventors: 林志良
Original assignee: Ningbo Donghai Instrument Waterway Co ltd
Current assignee: Ningbo Donghai Instrument Waterway Co ltd
Priority date: 1998-05-07
Filing date: 1998-05-07
Publication date: 1999-08-11
Anticipated expiration: 2008-05-07

Abstract

The utility model relates to a counting device for the flow capacity of the tap water. A counter of a water meter is adopted to form an independent sealed body, namely, a character wheel box. A specific liquid is injected into the character wheel box, and the whole counter is isolated from the water in the water meter. Therefore, the character wheel of the counter can not be polluted, and the reading can be maintained clearly forever. The character wheel box can be conveniently loaded with an upper clamping plate, a brand, and a dial gear system combination, and is fixed by a lower clamping plate finally.

Description

Liquid sealed vane wheel water meter

The utility model relates to a kind of counting assembly of tap water flow.

According to Chinese patent 88213852.9 disclosed a kind of " digital wet type vane wheel water meter ", it adopts digicounter to replace dial counter record water yield data, in housing, adopt conversion gear to make digicounter and reduction gearing matched, table board on housing is opened a window, is convenient to the data presentation of digicounter record, and this patent structure directly contacts with water owing to counter, be easy to make precipitation of scales on the character wheel surface, influence meter reading.

Also just like Chinese patent 89211350.2 disclosed a kind of " the anti-pollution water meter of rotary wind type ", its tongue by lower plate matches with the groove of gearcase and makes digit wheel be in character wheel frame, upper cover plate, lower plate and matches and form the space that isolates and prevent that water pollutant from polluting water meter surface and character wheel, this patent is because structural restriction, also exist meter reading unintelligible, shortcomings such as structure assembling inconvenience.

The purpose of this utility model is to provide a kind of easy to assembly at the present situation of above-mentioned prior art, and character wheel can not be polluted by water, and reading keeps forever liquid sealed vane wheel water meter clearly.

The technical solution of the utility model is such: this water meter comprises watchcase, movement, watch glass, wherein movement is by train wheel bridge, lower plate and be fixed in scale dish water meter pinion unit between the lower plate digital counting device of being made up of character wheel box, label etc. that connects with it of unifying and form, and wherein this character wheel box is an independently monoblock type packaged unit.

Counter in the above-mentioned character wheel box can be fixed in the blind hole and through hole of character wheel box two side by print wheel shaft, one end of axle is exposed at outside the hole, gap between axle and through hole seals with " O " type, axle head is installed the worm mesh of 10 gear wheels (worm gear) and water meter train, character wheel lid and the ultrasonic soldering of character wheel box, the character wheel lid has an aperture, is marked with special liquid in the box, and aperture is bonded and sealed with sealing-plug;

On the above-mentioned train wheel bridge rectangle square hole can be arranged, the character wheel box is fixed in the square hole by two side positioning boss.

Above-mentioned label can be connected with square hole sidewall draw-in groove by the card article on its two sides hanging feet, is fixed on the character wheel box mounting hole.

There are two grooves in above-mentioned character wheel box front, with the both sides plane scarf of label front rectangular channel.

Above-mentioned scale dish can have a hole that cooperates with the character wheel box.

Compared with prior art, the utlity model has compact conformation, dependable performance, easy to assembly, specious, reading is protected advantages such as clear forever.

Description of drawings:

Fig. 1 is the utility model movement vertical view.

Fig. 2 is the utility model movement upward view (removing lower plate).

Fig. 3 is the A-A cut-open view of Fig. 1.

Fig. 4 is the B-B cut-open view of Fig. 2.

Fig. 5 is a character wheel box vertical view.

Fig. 6 is the C-C cut-open view of Fig. 5.

Fig. 7 is the D-D cut-open view of Fig. 6.

Fig. 8 is the upright figure synoptic diagram of label.

The utility model is described in further detail below in conjunction with accompanying drawing embodiment:

Can find out that from Fig. 1, Fig. 2, Fig. 3 water meter movement of the present utility model is made up of train wheel bridge (4), scale dish (1), gear (7) kinematic train, label (3), character wheel box (2) and lower plate (14).Wherein the structure of character wheel box (2) as shown in Figure 6, it is an independently monoblock type closed component.Its character wheel (11), rounding wheel (12), axle (9) all is installed in the plastic casing (character wheel box (2)), one end of axle (9) is fixed in the pit of character wheel box (2) one sides, the other end passes another sidewall of character wheel box (2) and puts worm screw (15) engagement in gear (7) kinematic train of ten gear wheels (being worm gear) (6) and water meter, as Fig. 2, shown in Figure 4, axle (9) seals with miniature " O " type circle (10) with character wheel box (2) cinclides, use ultrasonic soldering between character wheel lid (13) and character wheel box (2), become an airtight container, inject behind the special liquid sealing-plug (18) bonding closed pores by the aperture on the character wheel lid, as shown in Figure 7, make character wheel box (2) become one independently, sealing, counting assembly.

Two side faces as Fig. 3, character wheel box shown in Figure 5 (2) has boss (17), spacing when utilizing this boss (17) to assemble as character wheel box (2), on the plane of train wheel bridge (4), have the square hole (8) that matches with character wheel box (2), label (3) then is to have a rectangular channel (20) on the plane, two sides have the plastic part of four symmetrical hanging feets, on hanging feet, has side direction card article (21), as shown in Figure 8.After label (3) is packed train wheel bridge (4) square hole (8) into, the hanging feet card article (21) of two sides then is stuck on train wheel bridge square hole (8) sidewall, and can not withdraw from voluntarily, after character wheel box (2) is packed into from behind, label (3) two side hanging feets are because the restriction of character wheel box (2) two sidewalls, can not deviate from again, reach fixing purpose.And the character wheel reading of character wheel box (2) part just in time embeds in the groove (20) of label two side planes (19), and the position except that groove just in time falls into and forms a plane in the groove (16) of character wheel box on the label plane, can print necessary font, symbol on the label (3), character wheel (11) numeral then clearly is emerging in the surface, as shown in Figure 1.

Scale dish of the present utility model (1) is the plastic sheet an of scale that is printed on necessary circle and technical indicator etc., it is fixed on train wheel bridge (4) surface, character wheel box (2) is enclosed within on its corresponding hole, make scale dish (1) both become the surface decoration of water meter, be again the scale of pointer indication, as shown in Figure 1.

After lower plate (14) was loaded onto, lower plate (14) had played support fixation except making the fixing while of related gear train in character wheel box (2) back, and character wheel box (2), label parts such as (3) are fixed up reliably.

After assemblings such as water meter movement and water meter shell, watch glass, character wheel box (2) surface just in time contact with watch glass, prevents that sealing is in character wheel box (2) surface flow.

Owing to encapsulated special liquid and isolated in the character wheel box of the present utility model (2) with the water of outside, can not only stop potable water to enter character wheel box (2), pollute character wheel (11), can offset the variation of ambient pressure simultaneously.Character wheel box (2) is close to watch glass, and water can't flow, and incrustation scale can not deposit, and has solved in the water meter use because incrustation scale causes the problem of water meter measurement reading difficulty.

Claims

1. liquid sealed vane wheel water meter, comprise watchcase, movement, watch glass, wherein movement is by train wheel bridge (4), lower plate (14) and be fixed on scale dish (1) gear (7) kinematic train between lower plate and the digital counting device of being made up of character wheel box (2), label (3) etc. that connects with it is formed, and it is characterized in that character wheel box (2) is a monoblock type packaged unit independently.

2. liquid sealed vane wheel water meter as claimed in claim 1, it is characterized in that the counter in the described character wheel box (2) is fixed in the blind hole and through hole of character wheel box (2) two side by print wheel shaft (9), one end of axle (9) is exposed at outside the hole, " O " RunddichtringO (10) is equipped with in gap between axle (9) and through hole, axle head is installed worm screw (15) engagement of 10 gear wheels (worm gear) (6) and water meter train, character wheel lid (13) is used ultrasonic soldering with character wheel box (2), character wheel lid (13) has an aperture, be marked with special liquid in the box, aperture is bonded and sealed with sealing-plug (18).

3. liquid sealed vane wheel water meter as claimed in claim 1 is characterized in that a rectangle square hole (8) is arranged on the train wheel bridge (4), and character wheel box (2) is fixed in the square hole (8) by two side positioning boss (17).

4. liquid sealed vane wheel water meter as claimed in claim 1 is characterized in that label (3) is connected with square hole (8) sidewall draw-in groove by the card article (21) on its two sides hanging feet, is fixed on character wheel box (2) mounting hole.

5. liquid sealed vane wheel water meter as claimed in claim 1 is characterized in that there are two grooves (16) in character wheel box (2) front, with two side planes (19) interlocking of label (3) front rectangular channel (20).

6. liquid sealed vane wheel water meter as claimed in claim 1 is characterized in that scale dish (1) has a hole (15) that cooperates with character wheel box (2).