CN102410859B

CN102410859B - External water meter

Info

Publication number: CN102410859B
Application number: CN 201110229234
Authority: CN
Inventors: 李万清; 廖学东; 王湘明
Original assignee: Hunan Weiming Energy Technology Co Ltd
Current assignee: Hunan Weiming Energy Technology Co Ltd
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2012-10-31
Anticipated expiration: 2031-08-11
Also published as: CN102410859A

Abstract

The invention discloses an external water meter, which ensures minimum distances between a sensor and magnets of a basic meter and the accurate reading of water volume signals of the water meter. The external water meter comprises the basic meter, a floating sensor bracket, a sensor fixing component with a sensor mounting bracket, a shell with limiting blocks and an additional positioning bracket. The positioning bracket is arranged on the basic meter as a transition piece. Guide posts are arranged on the upper surface of the positioning bracket. The floating sensor bracket is sleeved on the guide posts, and is in small clearance fit with the guide posts. Elastic components and inverted 'L'-shaped suspension loops are arranged on the floating sensor bracket, wherein the inverted 'L'-shaped suspension loops are suspended on the upper surface of the shell, so the sensor bracket is vertically floated; and the top ends of the elastic components are pressed against the inner surfaces of the limiting blocks on the shell, so the elastic components always apply a downward force to the floated sensor bracket. The sensor fixing component is obliquely downwards extended out of the inner wall of the floated sensor bracket and presses positions corresponding to the magnets on the basic meter. Therefore, the external water meter can ensure the minimum distances between the sensor and the magnets, and the accuracy of the water volume signals of the water meter can be ensured.

Description

The external water meter

Technical field

The invention belongs to the modern information technologies field, relate to a kind of external water meter.

Background technology

Water yield signal transducer support on the existing external water meter is all fixed; Its position can not be adjusted with the water meter scale error automatically; It has two kinds of mounting meanss: a kind of mode is that sensor stand is fixed on the base table, and its shortcoming is: if when pulling down outer cover, have water yield signal wire to connect base table and outer cover; This can increase assembly difficulty, and frangible water yield signal wire; The second way is that sensor stand is fixedly connected with cover structure spare, and sensor stand can be with the outer cover dismounting, because the height dimension of base table generally all has bigger error; When error appears in the height dimension of base table, can't guarantee the position of sensor stand and magnet, because water yield signal is conducted to sensor by the magnet on the pointer; When the magnet range sensor is far away; Sensor just possibly not receive signal thereby the problem that method reads water yield signal occurs, and that is accurate water measurement amount just, thereby influences economic benefit of enterprises; Water enterprise also can't accurately measure the water consumption of our unit, the communication of influence and water undertaking.

Summary of the invention

The purpose of this invention is to provide a kind of external water meter, can guarantee that the magnet of sensor and base table is nearest, guarantee the reliable transmission of water yield signal.

The present invention includes floating type sensor stand, housing and base table, floating type sensor stand is enclosed within the housing, and base table is installed in the below of floating type sensor stand; Base table comprises two blocks of magnet, and floating type sensor stand comprises assembling annulus and sensor fixed component, and being shaped as of assembling annulus is inverse-T-shaped, comprises small circle ring and large circle, and small circle ring is above large circle; The sensor fixed component stretches out to oblique below from the inwall of small circle ring, is pressed in the correspondence position of magnet on the base table; The sensor fixed component comprises sensor, signal wire and outer box, and outer box comprises square base box and pipe, and pipe is fixed on the square base box with direction obliquely, and sensor places the square base box, and signal wire passes from pipe; Also comprise the locating support that is installed in said floating type sensor stand bottom; Be little clearance fit between the two, the upper surface of said housing is provided with limited block, the arranged outside elastic component of small circle ring and inverted "L" shaped circular arc hangers on the inside surface of said large circle; The top of elastic component withstands on the inside surface of limited block; Inverted "L" shaped circular arc hangers hangs over the upper surface of housing, and the sensor fixed component also comprises fixing rack for sensor, is used for each degree of freedom of limiting sensor.

Said locating support comprises assembling annulus and guidepost, and guidepost is positioned at the upper surface of assembling annulus, and its quantity is two, and the center line of each one, two guidepost of left-right symmetric overlaps with the symmetrical center line of said magnet.

Offer two on the said large circle and be positioned at an installing and locating through hole on the diameter, left-right symmetric each one, the position of corresponding installing and locating through hole is provided with the hollow reference column on the outside surface of large circle.

The quantity of said elastic component is four, forward and backward each two.

Said inverted "L" shaped circular arc hangers hangs over the upper surface of said housing, and quantity is two, and each one of front and back, position are respectively preceding two, the centre of latter two elastic component.

The quantity of said housing limited block is individual, and its relative housing stretches out to inside, the corresponding said elastic component in position.

The side-looking profile of said fixing rack for sensor is that its baseplane is fixed on the inside surface of said square base box bottom surface like " Z " shape, and the distance on it between inside surface of the inside surface on plane and square base box bottom surface is the height of sensor, and sensor card therein.

On the center line of said assembling annulus two guideposts, the installation circular hole is offered in the outside of guidepost, left-right symmetric each one.

Said elastic component is with the center line symmetric arrangement of said guidepost.

The present invention has increased the locating support of floating type sensor stand; Locating support is installed on the base table as the transition piece bottom; Floating type sensor stand is installed through guidepost in top, and floating type sensor stand just is enclosed within on the guidepost, is little clearance fit between the two; Guidepost is positioned on the symmetrical center line of base table magnet, and guidepost is given the sensor stand circumferential registration simultaneously; The inverted "L" shaped hangers that floating type sensor stand increases hangs over the upper surface of housing; The bottom of floating type sensor stand is enclosed within on the guidepost of locating support; The vertical direction that is floating type sensor stand floats; The limited block inside surface that the housing upper surface is withstood through the elastic component top on the floating type sensor stand in its location, top is realized; Elastic component is given downward power of sensor stand all the time, and the sensor fixed component stretches out to oblique below from the small circle ring inwall of floating type sensor stand, and its square base box is pressed in the magnet correspondence position on the base table; Sensor is fixed in the square base box, so guarantee the nearest of sensor and base table magnet.So the present invention has guaranteed that from structure the magnet of sensor and base table is nearest, thereby guarantee correctly reading of water meter water yield signal.

Description of drawings

Fig. 1 looks cross-sectional schematic for master of the present invention.

Fig. 2 is a schematic top plan view of the present invention.

Fig. 3 is the axle side synoptic diagram of sensor stand of the present invention.

Fig. 4 cuts open synoptic diagram for the master of locating support of the present invention looks.

Fig. 5 is the schematic top plan view of locating support of the present invention.

Fig. 6 is the schematic top plan view of housing of the present invention.

Fig. 7 looks cross-sectional schematic for the master of sensor fixed component of the present invention.

Fig. 8 is the axle side synoptic diagram of fixing rack for sensor of the present invention.

Fig. 9 looks cross-sectional schematic for the master of prior art one.

Figure 10 looks cross-sectional schematic for the master of prior art two.

Embodiment

Like Fig. 1, shown in Figure 2, the present invention includes floating type sensor stand 1, housing 2, locating support 3, elastic component 4 and base table 5, base table 5 comprises two blocks of magnet 51.

The structure of floating type sensor stand 1 is as shown in Figure 3; Comprise assembling annulus 6 and sensor fixed component 7, sensor fixed component 7 stretches out to oblique below from the inwall of small circle ring 61, and being shaped as of assembling annulus 6 is inverse-T-shaped; Comprise small circle ring 61 and large circle 62; Small circle ring 61 is offered two and is positioned at an installing and locating through hole 9 on the diameter above large circle 62 on the large circle 62, left-right symmetric each one; This diameter overlaps with the symmetrical center line of magnet 51, and the position of corresponding installing and locating through hole 9 is provided with hollow reference column 10 on the outside surface of large circle 62; The arranged outside elastic component 4 and inverted "L" shaped circular arc hangers 8 of small circle ring 61 on the inside surface of large circle 62; The quantity of elastic component 4 is four; Forward and backward each two, about the center line symmetry of two magnet 51, the quantity of inverted "L" shaped circular arc hangers 8 is two; Before and after each one, the position is preceding two, the centre of latter two elastic component 4.

The structure of sensor fixed component 7 is as shown in Figure 7; Comprise sensor 71, signal wire 72, outer box 73 and fixing rack for sensor 74; Outer box 73 comprises square base box 731 and pipe 732; Pipe 732 is fixed on the square base box 731 with direction obliquely, and sensor 71 places square base box 731, and signal wire 72 passes from pipe 732; As shown in Figure 8; The side-looking profile of fixing rack for sensor 74 is like " Z " shape; Its baseplane is fixed on the inside surface of said square base box 731 bottom surfaces; Distance on it between inside surface of the inside surface on plane and square base box 731 bottom surfaces is the height of sensor 71, and during assembling, sensor 71 is stuck in wherein.

The structure of housing 2 is as shown in Figure 6, the corresponding elastic component 4 of its upper surface four limited blocks 21 are set; The structure of locating support 3 such as Fig. 4, shown in Figure 5 comprise assembling annulus 31 and guidepost 32, and the quantity of guidepost 32 is two, left-right symmetric each one, its center line overlaps with the symmetrical center line of magnet 51.

During assembling; Through frock locating support 3 is installed on the base table 5 through the installation circular hole 311 on it earlier; Guarantee that the guidepost 32 on the locating support 3 is positioned on the symmetrical center line of two magnet 51; Then floating type sensor stand 1 bottom is enclosed within on the guidepost 32 of locating support 3, simultaneously the inverted "L" shaped circular arc hangers 8 on the floating type sensor stand 1 hangs over the upper surface of housing 2, guarantees that each elastic component 4 top on the floating type sensor stand 1 withstand the limited block 21 of housing 2 upper surfaces; The square base box 731 of sensor fixed component 7 is pressed on the base table 5, like Fig. 1, shown in Figure 2.

After assembling, sensor 71 position centering magnet 51, elastic component 4 are given 1 one downward power of sensor stand all the time, guarantee the nearest of sensor 71 and magnet.

Claims

1. an external water meter comprises floating type sensor stand (1), housing (2) and base table (5), and floating type sensor stand (1) is enclosed within the housing (2), and base table (5) is installed in the below of floating type sensor stand (1); Base table (5) comprises two blocks of magnet (51); Floating type sensor stand (1) comprises assembling annulus (6) and sensor fixed component (7); Being shaped as of assembling annulus (6) is inverse-T-shaped; Comprise small circle ring (61) and large circle (62), small circle ring (61) is in the top of large circle (62); Sensor fixed component (7) stretches out to oblique below from the inwall of small circle ring (61), is pressed in the correspondence position that base table (5) is gone up magnet (51); Sensor fixed component (7) comprises sensor (71), signal wire (72) and outer box (73); Outer box (73) comprises square base box (731) and pipe (732); Pipe (732) is fixed on the square base box (731) with direction obliquely; Sensor (71) places square base box (731), and signal wire (72) passes from pipe (732); It is characterized in that: also comprise the locating support (3) that is installed in said floating type sensor stand (1) bottom; Be little clearance fit between the two; The upper surface of said housing (2) is provided with limited block (21); The arranged outside elastic component (4) of small circle ring (61) and inverted "L" shaped circular arc hangers (8) on the inside surface of said large circle (62), the top of elastic component (4) withstands on the inside surface of limited block (21), and inverted "L" shaped circular arc hangers (8) hangs over the upper surface of housing (2); Sensor fixed component (7) also comprises fixing rack for sensor (74), is used for each degree of freedom of limiting sensor (71).

2. external water meter as claimed in claim 1; It is characterized in that: said locating support (3) comprises assembling annulus (31) and guidepost (32); Guidepost (32) is positioned at the upper surface of assembling annulus (31); Its quantity is two, and the center line of each one, two guidepost (32) of left-right symmetric overlaps with the symmetrical center line of said magnet (51).

3. external water meter as claimed in claim 1; It is characterized in that: offer two on the said large circle (62) and be positioned at an installing and locating through hole (9) on the diameter; Left-right symmetric each one, the position of corresponding installing and locating through hole (9) is provided with hollow reference column (10) on the outside surface of large circle (62).

4. external water meter as claimed in claim 1 is characterized in that: the quantity of said elastic component (4) is four, forward and backward each two.

5. external water meter as claimed in claim 1; It is characterized in that: said inverted "L" shaped circular arc hangers (8) hangs over the upper surface of said housing (2); Quantity is two, and each one of front and back, position are respectively preceding two, the centre of latter two elastic component (4).

6. external water meter as claimed in claim 1 is characterized in that: the quantity of said housing (2) upper surface limited block (21) is 4, and its relative housing (21) stretches out to inside, the corresponding said elastic component (4) in position.

7. external water meter as claimed in claim 1; It is characterized in that: the side-looking profile of said fixing rack for sensor (74) is like " Z " shape; Its baseplane is fixed on the inside surface of said square base box (731) bottom surface; Distance on it between inside surface of the inside surface on plane and square base box (731) bottom surface is the height of sensor (71), and sensor (71) is stuck in wherein.

8. external water meter as claimed in claim 2 is characterized in that: on the center line of two guideposts (32) of said assembling annulus (31), the outside of guidepost (32) offers circular hole (311) is installed, left-right symmetric each one.

9. external water meter as claimed in claim 2 is characterized in that: said elastic component (4) is with the center line symmetric arrangement of said guidepost (32).