CN2741019Y

CN2741019Y - Fluid sensor

Info

Publication number: CN2741019Y
Application number: CN 200420113575
Authority: CN
Inventors: 罗瑞杨
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-19
Filing date: 2004-11-19
Publication date: 2005-11-16
Anticipated expiration: 2014-11-19

Abstract

The utility model discloses a fluid sensor, comprising a tube body, a floating block, a circuit board, a bottom seat, a fixing seat and a cover board. Wherein, the inside of the tube body can contain one floating block; the floating block can do the motion at the inside of the tube body; the bottom end of the tube body can combine one bottom seat; and the top end of the tube body is mutually buckled with the fixing seat; the inside of the fixing seat can be provided with the through hole of a sensing component; the inside of the fixing seat can contain one circuit board; the bottom end of the circuit board can combine an infrared sensing component; the infrared sensing component can protrude over the inside of the through hole of the sensing component; then one cover board can combine at the upper part of the fixing seat to form the fluid sensor of the utility model. In sensing the fluid, the floating block at the inside of the tube body can change the position where the floating block is at following the corresponding fluid level height. Because of the infrared sensing component emitting the infarared ray to the top face of the floating block, the infrared sensing component can receive the reflected signal from the floating block once more; the signal can be calculated through the circuit board and can be displayed on the instrument, so that the utility model can accurately sense and can measure the correct fluid data.

Description

The liquid measure sensing apparatus

Technical field

The utility model is about a kind of liquid measure sensing apparatus, particularly about a kind of measurement form with non-contact-point, do not have friction, permanance is splendid and have that structure is simple, resolution is high concurrently, lower cost for material and the liquid measure sensing apparatus of plurality of advantages such as manufacturing easily.

Background technology

The applicant proposes the patent application case of " liquid measure checking device " January 13 1999 Christian era, and check and approve through Patent Office, the patent No.: ZL99222486.1, its disclosure as shown in Figure 1, its assembly such as coil 12, an outer tube 13, a ball float 14, a base 15, a upper fixed seat 16 that mainly comprise pipe 11 outsides in pipe 11, is wound in constitutes; Wherein, the interior pipe 11 of outside winding around 12, its inside installs a ball float 14, interior pipe 11 outside sheathed outer tubes 13 in addition, and the upper end of interior pipe 11 and upper fixed seat 16 are screwed, and in interior pipe 11 lower ends in conjunction with a base 15, in base number infiltration hole 151 is set, in infiltration hole 151 enters, to manage 11 for liquid, in addition, the two ends of this outer tube 13 are with sealing mode involution, in order to the coil 12 of pipe 11 outer peripheral edges winding in protecting; When implementing the liquid measure detection by the structure of above-mentioned liquid measure sensing apparatus, the ball float 14 of interior pipe 11 inside will change the present position in response to liquid level, induce the variation inductance amount by coil 12, show that through circuit conversion liquid measure is on the Displaying Meter 17 of outside.Though said structure can be reached the function that liquid measure detects, still have following shortcoming in making to use: the coil of (1) its application, outer tube, ball float etc., make that whole structure is various, can cause the increase on the manufacturing materials cost relatively; (2) in the preparation process of coil pipe in twining, need coil is carefully and neatly wound the line on interior pipe, it will cause the preparation process time of production line to be elongated, if during the longer interior pipe of desire winding, then need spend more man-hour; (3) this ball float needs sense magnetic material in coating, so that the position of coil-induced ball float 14, these ball float 14 individualities need have suitable size, and interior pipe need cooperate appropriately with gap between ball float, can influence liquid measure sensing out of true relatively.

This shows that above-mentioned liquid measure checking device commonly used still has many disappearances, real non-one kindhearted design, and demand urgently being improved.Every shortcoming that this case applicant is derived in view of above-mentioned liquid measure checking device commonly used is urgently to think to be improved innovation, and after concentrating on studies through taking great pains to attain one's goal for many years, successfully this part liquid measure sensing apparatus is finished in research and development finally.

The utility model content

The purpose of this utility model promptly is to provide a kind of see through infrared ray or ultrasonic sensing component and the floating block of arranging in pairs or groups action, and then reach the purpose that detects the liquid measure number, it can guarantee that sensing apparatus is not subjected to the influence of any external force vibrations, uses to reach measuring accurately and the liquid measure sensing apparatus of structural integrity.

Another purpose of the present utility model is to be to provide a kind of no complex mechanical construction, and spare part makes that less structure is simplified, and makes it have the liquid measure sensing apparatus of plurality of advantages such as easy to manufacture, with low cost.

Another purpose of the present utility model is to be to provide a kind of floating block and the infrared ray sensing component signal of gained that interacts, and calculates through circuit board and is shown in Displaying Meter, so that the user can inspect the liquid measure sensing apparatus of liquid measure value easily.

A purpose more of the present utility model is to be to provide a kind of can use with various casing collocation, only needs lengthening or shorten body to get final product, and causes the good liquid measure sensing apparatus of its practicality.

Can reach the liquid measure sensing apparatus of above-mentioned utility model purpose, include: a body, floating block, circuit board, base, holder and cover plate constitute; Wherein, this body upper end appropriate location offers several pores, use in the balance body, outer liquid level is contour, again can a ccontaining floating block in this body inside, this floating block is to move in body, this body bottom can be in conjunction with a base, one infiltration hole is set on this base, buckle slot in the body top is that button piece with holder is interlocked again, and this holder periphery can encircle and establish several screws, firmly to be incorporated into holder on the container, can offer a sensing component open-work in the inside of holder again, for liquid level in the sensing component detecting body, can a ccontaining circuit board in this holder, and can be in conjunction with an infrared ray sensing component in its bottom, this infrared ray sensing component can be exposed in the sensing component open-work, again a cover plate is incorporated on the holder,, promptly forms the liquid measure sensing apparatus of this part by the composition of above-mentioned each structure; When detecting liquid measure, the floating block of body inside will change the present position in response to the height of liquid level, by the end face of infrared ray sensing component emission infrared ray to floating block, this infrared ray sensing component can receive the signal by the floating block reflection again, and via after the circuit board calculating, show its liquid measure value via Displaying Meter again, can accurately record correct liquid measure data; In addition, this body upper end appropriate location is set with a water level upper limit, then be set with a water level lower limit in the lower end appropriate location, and this water level upper and lower limit is that visual container size is set, see through the upper and lower limit that an infrared ray sensing component goes to respond to liquid measure again, prescribe a time limit when liquid measure is higher than the upper limit or is lower than down, can warn the user by Displaying Meter; The visual container size of the upper and lower limit of its middle water level is set.

Liquid measure sensing apparatus provided by the utility model when comparing mutually with aforementioned common technology, has more following advantage:

1. utilize the mode of an infrared ray or ultrasonic sensing component and the floating block of arranging in pairs or groups action, and then reach the purpose that can accurately measure the liquid measure number, and, also can keep its complete structure not because of the influence of any external force vibrations.

2. liquid measure sensing apparatus of the present utility model, its one-piece construction does not have complex mechanical construction and spare part is few, causes its structure to be oversimplified, and makes it have plurality of advantages such as easy to manufacture, with low cost, will help popularization of the present utility model.

3. see through the interact signal of gained of this floating block and infrared ray sensing component, can and be shown in Displaying Meter through circuit board calculating, so that the user can inspect the liquid measure value easily.

4. liquid measure sensing apparatus of the present utility model, can with the use of arranging in pairs or groups mutually of various casing, only need to change and get final product according to required body length, cause its practicality good.

5. by the calculating of circuit board, can set a water level upper and lower limit in body upper and lower end place, and can respond to the upper limit value and lower limit value that needs to reserve liquid measure, when being higher than the upper limit or being lower than down, water level prescribes a time limit, but the transmission display instrument is in the mode of cautions such as alarm bell or computer speech, the upper and lower limit of warning user liquid measure water level can avoid the too much or very few situation of liquid to take place.

Description of drawings

See also the detailed description and the accompanying drawing thereof of following relevant the utility model one preferred embodiment, can further understand technology contents of the present utility model and purpose effect thereof; The accompanying drawing of relevant this embodiment is:

Fig. 1 is the side view of known liquid measure checking device;

Fig. 2 is the three-dimensional exploded view of the utility model liquid measure sensing apparatus;

Fig. 3 is that the solid of this liquid measure sensing apparatus is in conjunction with figure; And

Fig. 4 is the enforcement synoptic diagram of this liquid measure sensing apparatus.

11 is interior pipe among the figure, and 12 is coil, and 13 is outer tube, and 14 is ball float, 15 is base, and 151 are the infiltration hole, and 16 is upper fixed seat, and 17 is Displaying Meter, 21 is body, and 211 is buckle slot, and 212 is pore, and 22 is floating block, 23 is base, and 231 is the inlet opening, and 24 is holder, and 241 is screw, 242 is groove, and 243 is the sensing component open-work, and 244 are the button piece, and 25 is circuit board, 251 is the infrared ray sensing component, and 26 is cover plate, and 3 is Displaying Meter.

Embodiment

See also shown in Fig. 2,3, liquid measure sensing apparatus provided by the utility model mainly includes:

One body 21, this body 21 is a hollow tube body, its top is provided with more than one buckle slot 211 at least, in the lower end of buckle slot 211 appropriate location more than one pore 212 is set at least again; This body 21 can change its suitable use length arbitrarily according to the difference of the ccontaining degree of depth of various casing; But these pore 212 balance bodys 21 are inside and outside, make liquid level contour;

One floating block 22, this floating block 22 is placed in the body 21, and can upper and lower action in body 21; This floating block 22 can be general material or is substituted by other material; The height that this floating block 22 is made is thinner, causes its reaction interval bigger, to improve the degree of accuracy of measuring;

One base 23, the place is provided with an inlet opening 231 in the middle of this base 23; This base 23 is incorporated into the bottom of body 21; This inlet opening 231 can be for liquid inflow;

One holder 24, the periphery of this holder 24 can encircle establishes several screws 241, the place is concaved with a groove 242 in the middle of holder 24 again, and the place is provided with a sensing component open-work 243 in the middle of groove, in the bottom of holder 24 more than one at least button piece 244 is set again; This holder 24 can see through the button piece 244 that is provided with on it and be snapped on the buckle slot 211 of body 21, causes two objects firmly to be interlocked; The screw 241 of this holder 24 can see through fixed screw or fixture, causes holder 24 firmly to be incorporated on the container;

One circuit board 25, the bottom of this circuit board 25 can be in conjunction with an infrared ray sensing component 251; This circuit board 25 can be placed in holder 24 grooves 242, and this infrared ray sensing component 251 is exposed in the sensing component open-work 243; This infrared ray sensing component 251 can be ultrasonic sensing component or other sensing component;

One cover plate 26, this cover plate 26 are incorporated into holder 24 grooves 242 tops, cause this groove 242 to form an enclosure space; This cover plate 26 also can be the terminal group seat, so that be connected with outside Signal connector;

By the composition of above-mentioned each member, promptly form the liquid measure sensing apparatus of this part.

See also shown in Figure 4, enforcement synoptic diagram for this liquid measure sensing apparatus, when the liquid measure sensing apparatus when detecting liquid measure, liquid can enter via the inlet opening 231 of base 23 in the body 21, make the floating block 22 in the body 21 will change the position in response to the height of liquid level, at this moment, can be by the end face of infrared ray sensing component 251 emission infrared rays to floating block 22, this infrared ray sensing component 251 can receive the signal by floating block 22 reflections again, change along with liquid measure, floating block 22 is also followed its residing position of the corresponding change of liquid level, see through circuit board 25 again and calculate and show its liquid measure values via Displaying Meter 3, in order to do and reach a resolution height, the accurate liquid measure sensing apparatus of sensing; In addition, these body 21 upper end appropriate locations can see through circuit board 25 and calculate and set a water level upper limit (not indicating among the figure), set a water level lower limit in the lower end appropriate location, and the visual container size of the upper and lower limit of this water level is set, need to reserve the upper limit value and lower limit value of liquid measure again via an infrared ray sensing component 251 inductions, prescribe a time limit when liquid measure is higher than the upper limit or is lower than down, and transmission display instrument 3 warns user's liquid measure water level too much or very few with warning ways such as caution light source, alarm bell or voice.

Above-listed detailed description is specifying at possible embodiments of the present utility model, only this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model skill spirit does and implement or change, all should be contained in the claim of this case.

Claims

1. liquid measure sensing apparatus is characterized in that: it is formed assembly and includes,

One body, the top of this body is provided with more than one buckle slot at least, and in the lower end of buckle slot appropriate location more than one pore is set at least;

One floating block, this floating block is to be placed in the body, and can move in body;

One base, the place is provided with an inlet opening in the middle of this base; This base is the bottom that is incorporated into body;

One holder, the periphery of this holder can encircle establishes several screws, is concaved with a groove again in holder, and the place is provided with a sensing component open-work in the middle of this groove, in the bottom of holder more than one at least button piece is set again;

One circuit board, the bottom of this circuit board can be in conjunction with a sensing component; This circuit board is can be placed in the groove of holder, and this sensing component is to be exposed in the sensing component open-work;

One cover plate, this cover plate are the groove tops that is incorporated into holder, cause this groove to form an enclosure space.

2. according to the described liquid measure sensing apparatus of claim 1, it is characterized in that: wherein said holder can see through the buckle slot that the button piece that is provided with on it is snapped in body.

3. according to the described liquid measure sensing apparatus of claim 1, it is characterized in that: wherein said sensing component is an infrared ray sensing component.

4. according to the described liquid measure sensing apparatus of claim 1, it is characterized in that: wherein said sensing component is a ultrasonic sensing component.

5. according to the described liquid measure sensing apparatus of claim 1, it is characterized in that: wherein said cover plate is the terminal group seat.

6. according to the described liquid measure sensing apparatus of claim 1, it is characterized in that: wherein said body upper and lower end appropriate location can see through the upper and lower limit that a circuit board calculated and set a water level, and whether be higher than higher limit or be lower than lower limit by sensing component induction liquid measure, when liquid measure is higher or lower than upper limit value and lower limit value, can sees through various warning ways and remind the user.