KR200275564Y1 - Gear box and count wheel box assembly device of water meter - Google Patents

Abstract

The present invention relates to a water meter, and more particularly, to a configuration in which a gear box and a count wheel box corresponding to the upper inner shell of the water meter are simply and accurately assembled and made to measure clearly.

Conventionally, since the antifreeze 15 must be introduced into a space of 0.3 mm or less after the count wheel box 6 is mounted under the glass surface 5, the process is very difficult, requires a large amount of working time, and increases the overall material cost. .

The present invention is integrally formed with the count wheel mounting recess 28 and the tube mounting portion 11 that can act as the count wheel box 6 on one side of the gear box 3, the count wheel 12 and the tube ( 7) and then the antifreeze 15 can be injected from the upper side of the count wheel mounting recess 28, and the transparent plate 4 is fixedly attached so that the ultrasonic welding unit 16 is formed thereon. It is a gearbox and count wheel box assembly device of a water meter that allows easy, simple assembly process and large assembly time savings.

Description

Gear box and count wheel box assembly device of water meter

The present invention relates to a gear box mounted on the upper inner shell of the water meter, in particular, to form a count wheel mounting recess for mounting the count wheel in the gear box and integrally forming a tube mounting portion for inserting the tube on one side thereof. The assembly process of the gearbox and the count wheel box is simplified, the assembly error is reduced, the process of injecting the antifreeze (glycerin, etc.) is simplified, so that precise measurement is possible and mass production is possible by simplifying the assembly process. The present invention relates to a gearbox and a count wheel box assembling apparatus of a water meter.

Conventionally, a 0.3 mm space is formed between the glass surface 5 and the count wheel box 6 with a small input hole 24 after mounting the count wheel box 6 while forming a space of about 0.3 mm on the lower side of the glass surface 5. Injecting antifreeze (glycerine, etc.) into the count wheel box (6) through the process, this input operation process is very difficult, a lot of defects occur, a large amount of input operation time was required, when vacuum input, all equipment and materials, etc. This large amount is required, and the cost of material costs increases a lot, and the count wheel box 6 attached to the glass surface 5 is placed in the count wheel box insertion opening 22, which is a cutout of the gear box 3, and the gear box ( 8) The gears 17 and 17 'and the gear 17 mounted on the outside of the count wheel box 6 are assembled. However, since they are assembled separately after production, the distance between the axes is not accurate and many assembly errors occur. This makes it difficult to measure precisely, There were many problems such as wear and the like.

The present invention is intended to solve the problems described above, the gear box (3) on one side of the count wheel mounting groove portion 28 and the tube mounting portion (11) integrally formed, the count wheel mounting groove portion 28 A plurality of count wheels 12 are mounted, and a tube 7 is inserted into the tube mounting portion 11, and then an antifreeze (glycerine or the like) 15 is filled in the count wheel mounting recess 28, and then the measuring needle 13 13) and cover and fix the transparent plate 4 formed with the scale measuring parts 25, 25 'and the numerical value part 26 on the upper surface side thereof, and the count wheel mounting groove part 28 and the tube. By forming and fixing the ultrasonic welding portion 16 on the upper edge of the mounting portion 11, the antifreeze injection process is simplified, allowing mass production, and the outer gear of the count wheel box and the gearbox 3 side gear are formed together. Because of the assembly, the side-to-side distance is accurate, making it easy to make precise measurements. When tap water flows into the housing 1 of the meter, the water flows into the tube 7 and expands to exit between the groove grooves 7 of the tube 7. (27) (27 ') and (27) are formed to prevent cloudy frost and the like on the transparent plate (4) and the glass surface (5) due to the temperature difference between the upper and lower sides, and the conventional measuring needle (13) (13') The scale measuring portions 25 and 25 'are formed around the lower side, and the scale measuring portions 25 and 25' are formed on the transparent plate 4 side of the measuring needles 13 and 13 'for a long time. Its purpose is to make the measurement clear even if dirt, rust or scale occurs on the top of the gearbox 3 in use.

1 is a perspective view of the main portion of the present invention separated state

2 is a conventional embodiment

3 is a perspective view of the subject innovation count wheel

4 is a main portion installation state of the present invention

Explanation of symbols on the main parts of the drawings

1: housing 2; Rotary vane 3: gearbox

4: transparent plate 5: glass surface 6: count wheel box

7 tube 8 inclined surface 9 groove groove

10; Hanging plate 11: tube mounting part 12: count wheel

13,13 ': measuring needle 14: glass bending part 15: antifreeze

16: ultrasonic welding unit 17, 17 ', 17: gear 18: white frame

19: assay frame 20; Axis 21: inlet

22: outlet 22: count wheel box insertion hole

23: number ball 24: hole 25,25 ': graduation measuring unit

26: numerical part 27,27 ', 27: air outflow hole

28: count wheel mounting recess 29: lower inner shell 30; Train control

31: upper flat portion 32: edge 33: gear portion

34: upper cap

In the upper inner casing of the water meter,

One side of the gearbox 3 is integrally formed with the count wheel mounting recess 28 and the tube mounting portion 11, and the upper flat portion 31 of the gear box 3 has an upper edge 32 and a count wheel mounting recess. (28) It is formed in a position lower than the edge, that is, the ultrasonic welding portion 16, so that the plurality of measuring needles 13, 13 'is not in contact with the transparent plate 4, and the air outlet entry hole 27 on one side thereof ( 27 ') 27, and the transparent plate 4 is provided with the scale measuring parts 25 and 25' and the numerical value part 26, and a support stand (not shown) is protruded on the bottom side, In the count wheel mounting recess 28 of the gearbox 3, the number ball 23 is formed on the white frame 19, and then is injected into the black frame 19 by injection to form a double injection so that the color does not change. A count wheel 12 is formed and mounted, and a tube 7 is inserted into the tube mounting portion 11, and then an antifreeze (glycerin, etc.) 15 is added thereto, and then the top surface of the gear box 3 is transparent. (4) is placed on the measuring needles 13 and 13 'so that the scale measuring portions 25 and 25' coincide with each other, and the edge of the count wheel mounting recess 28 is ultrasonically fused to form an ultrasonic welding portion 16 ) Is a gear box and count wheel box assembling device of the water meter configured to mount and mount the gear box (3) and the count wheel box (6).

Unexplained reference numeral 29 denotes a tap water outlet hole is formed in the lower inner shell, and when the blade car 2 is inserted into the pivot shaft therein and the tap water 2 rotates as the tap water flows into the gear unit 33 of the blade car 2, the gear box ( 3) rotate the gears 27 and 27 'in the gears, and when the gears 27 and 27' rotate, the gears 27 of the count wheel box 6 meshed with the gears 27 and 27 'are rotated so that the numbered wheel 12 is displayed. This rotation causes the usage amount to appear in the numerical value section 26.

The operation of the present invention configured as described above is as follows.

After mounting a plurality of count wheels 12 in the count wheel mounting recess 28 formed on one side of the gear box 3 and mounting the tube 7 to the tube mounting portion 11, the count wheel mounting recess 28 is provided. Since the antifreeze (glycerol, etc.) 15 is injected from the upper side, the antifreeze 15 injection work process becomes very convenient, and mass production is possible.

In addition, when the transparent plate 4 is placed on the upper side of the gear box 3 and the ultrasonic welding unit 16 is formed on the upper edge of the count wheel mounting recess 28, the gear box 3 and the transparent plate 4 are assembled. The mounting is made simple, and the air introduced into the count wheel-mounted yohum part 28 inserts the gearbox 2 into the lower inner shell 29 of the housing 1 and attaches the gearbox 3 to which the transparent plate 4 is fixed. When the upper cap 34, which is assembled to be connected to the upper gear part 33 of the blade car 2, is fastened and mounted, and then connected to the water pipe, the tap water flows into the housing 1 while being used. Since the air is introduced into the tub 7, the tub 7 is expanded so that the air escapes between the tube 7 and the tube mounting portion 11 of the gearbox 3.

In addition, the transparent plate 4 fixedly attached to the upper side of the gear box 3 is a water meter by a plurality of air outlet holes 27, 27 ′, 27 formed in the upper plane portion 31 of the gear box 3. The temperature difference between the upper and lower parts of the upper part is eliminated, and the occurrence of cloudy frost is suppressed, and the glass surface freezing of the water meter is prevented even in the cold winter, and the numerical part 26 measurement work is made clear. Display the scale measurement unit 25 (25 ') on the top of the gear box (3) and the upper surface part 31 so that tap water flows into the glass and the water meter glass is freezing. However, in the present invention, the measuring needles 13 and 13 'protrude above the upper surface of the gear box 3, and the transparent plate 4 is fixedly attached thereto, so that the measuring unit of the transparent plate 4 is fixed. (25) and (25 '), so that a clear measurement is easy to operate even for long time use.

As we have seen above,

According to the present invention, the antifreeze injection process in the count wheel box 6 becomes very convenient, and the associated costs are reduced, so that the mass production can be effected, and the air discharge in the count wheel box 6 is caused by the tube 7. This is to be automatically discharged as it is introduced, and double-injection of the count wheel (12) so that the color does not change even when used for a long time unlike printing, and does not produce a cloudy sex such as air inlet hole (27) (27 ') It is easy to prevent freezing and clear measurement, and the scale shafts 25 and 25 'are displayed on the transparent plate 4 side of the measuring needles 13 and 13' where water does not flow in. Because it is easy to measure clearly, it is a very useful design that has the effect of mass saving of mass production and assembly time, reduction of all expenses and improvement of quality and performance.

Claims (1)

In the upper inner case of the water meter, The count wheel mounting recess 28 and the tube mounting portion 11 are integrally formed on one side of the gear box 3, and a plurality of air outlet holes 27 and 27 ′ are provided in the upper plane portion 31 of the gear box 3. (27), a plurality of count wheels 12 are mounted to the count wheel mounting recess 28, and a tube 7 is inserted into the tube mounting portion 11, and then a count wheel mounting recess portion ( 28) allowing the antifreeze 15 to be injected from above, The count wheel 12 mounted on the count wheel mounting recess 28 forms a number ball 23 in the white frame 18 and drives it in the black frame 19 so that the color does not change, and the gear On the transparent plate 4 fixedly attached to the upper side of the box 3, graduation measuring units 25 and 25 'and a numerical value unit 6 are formed and fixedly attached to the upper side of the gear box 3, but the count wheel is mounted. The ultrasonic fusion unit 16 is formed and fixedly attached to the upper edge of the groove 28, and when tap water flows in, the tube 7 is expanded so that air in the count wheel mounting recess 28 is discharged. Gearbox and count wheel box assembly of the meter.