CN201262567Y

CN201262567Y - Detection device for liquid level

Info

Publication number: CN201262567Y
Application number: CNU2008201372143U
Authority: CN
Inventors: 刘志禹
Original assignee: Hongxin Technology Co Ltd
Current assignee: Hongxin Technology Co Ltd
Priority date: 2008-09-22
Filing date: 2008-09-22
Publication date: 2009-06-24
Anticipated expiration: 2018-09-22

Abstract

The utility model provides a detection device of liquid-level height, which mainly comprises: at least one light-transmission pipe fitting, at least one buoy, at least one pedestal body and at least one block, wherein the light-transmission pipe fitting is a hollow pipe made by light-transmission materials and one end thereof is connected with the liquid level to be detected by a communicating pipe, the buoy is arranged inside the light-transmission pipe fitting and can change the height with the water level to be detected, a perforation is arranged on the pedestal body and corresponding to the section of the light-transmission pipe fitting so as to lead the pedestal body to be capable of being sheathed on the light-transmission pipe fitting, the pedestal body is internally provided with an optical detection component so as to detect the position of the buoy, and the block is arranged at the position of the water-level height to be detected inside the light-transmission pipe fitting so as to block the buoy at the detected object.

Description

A kind of liquid level detection device

Technical field

The utility model relates to a kind of liquid level detection device, relates in particular to a kind of easy-to-install modularization liquid level detection device.

Background technology

Liquid level sensor be widely used in we the life arround various device in, as food machinerys such as common water dispenser, therapeutic medical infusion set, water tower, radiator, fructose machines, or the profit accumulator tank of manufacturing machine etc., because for to avoid the liquid of internal memory not note because of the user, lack or can make machine or user produce danger when excessively adding, therefore in many equipment, all be provided with liquid level sensor to remind or to force action to avoid causing danger;

Yet existing liquid level sensor be mostly at a certain particular device the device of visitor system, can't be common in the various device, therefore, this case utility model people satisfies actively a kind of level detection module that is common to various device of research and development.

Summary of the invention

Fundamental purpose of the present utility model is to provide a kind of liquid level detection device, to solve the device that existing magnetic liquid level sensor there is no the buoy block, easily because the buoy amount of movement is bigger, and can't correctly detect liquid level, and when the magnetic buoy is applied to as high-temp liquids such as the hot water detection of water dispenser, cause magnetic to disappear because permanent high temperature uses easily, and then influence the accuracy of liquid level sensor.

For achieving the above object, the utility model provides a kind of liquid level detection device, and it consists predominantly of:

At least one printing opacity pipe fitting, it is the made hollow tubular product of a light-permeable material, described printing opacity pipe fitting one end is connected to liquid level to be detected with a connecting pipe;

At least one buoy, it is located in the described printing opacity pipe fitting, and can produce height change with described liquid level to be detected;

At least one pedestal, described pedestal is provided with a perforation, and described perforation makes described pedestal can be sheathed on the described printing opacity pipe fitting corresponding to the cross section of described printing opacity pipe fitting; Wherein, be provided with an optical detection elements in the described pedestal, to detect the position of described buoy;

At least one stop part, it is located in the described printing opacity pipe fitting and is intended to detect the liquid level place, with described buoy block in detecting the target place.

Fundamental purpose of the present utility model is to provide a kind of visual user's demand event to adjust liquid, the water surface elevation pick-up unit, by connecting pipe principle part liquid is imported the level detection module, to detect the highest or lowest water level of liquid level, can be applicable to any one utensil that needs level detection, as common water dispenser, therapeutic medical infusion set, water tower, radiator, food machinerys such as fructose machine, or the profit accumulator tank of manufacturing machine etc., not needing needs at specialization of the utensil design of using as prior art, only need simple anchor clamps or screw that the level detection module is fixed in suitable height or position, can use.

Compared with prior art, formation of the present utility model is simple, product durability height, can not influence sensing precision because of long-time the use, and the shared volume of elements such as printing opacity pipe fitting and buoy is very little, but whole level detection module compact efficientization, with flexible Application;

Stop part of the present utility model can be strengthened the detection effect of the highest or lowest water level of detecting element, really with the buoy block in the detection position, make detecting element to move really and do not produce mistake, and can prevent that buoy from deviating from or fall into communicating pipe in the printing opacity pipe fitting;

Detecting elements such as pedestal of the present utility model, circuit board do not contact with the liquid isolation, can guarantee that product can not influence corrosion and contaminated liquid because of the permanent liquid body that uses.

Description of drawings

Fig. 1 is the three-dimensional schematic appearance of decomposing of the present utility model.

Fig. 2 is a three-dimensional combination schematic appearance of the present utility model.

Fig. 3 is a combination diagrammatic cross-section of the present utility model.

Fig. 4 is that lowest water level of the present utility model detects the action synoptic diagram.

Fig. 5 is that peak level of the present utility model detects the action synoptic diagram.

Fig. 6 is the user mode synoptic diagram of the many groups of the utility model series connection level detection module.

Fig. 7 is a face upwarding view of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the utility model is above-mentioned.

See also Fig. 1 to shown in Fig. 3 drawing, a kind of liquid level detection device, it consists predominantly of:

At least one printing opacity pipe fitting 10, it is the made hollow tubular product of a light-permeable material, the bottom of described printing opacity pipe fitting 10 is connected to liquid level to be detected with a connecting pipe 11;

At least one buoy 20, it is located in the described printing opacity pipe fitting 10, described buoy 20 is that a density is made less than the material of tracer liquid, and its outward appearance can be a spherical shape or other shape, and described buoy 20 also can produce height change with the liquid level to be detected in the described printing opacity pipe fitting 10;

At least one pedestal 30, described pedestal 30 includes the box body 31 of a hollow and a driving fit in the lid 32 of described box body 31, convex with the prominent eaves 311 of a perforation in the described box body 31, to form a perforation 312, described perforation 312 is corresponding to the cross section of described printing opacity pipe fitting 10, makes described pedestal 30 can be sheathed on the described printing opacity pipe fitting 10; Wherein, more include a circuit board 33 in the described box body, and be concaved with the corresponding mutually detection hole 313 of two-phase on the prominent eaves 311 of described perforation, described circuit board 33 is provided with at least one optical detection elements 331 at 313 places, described detection hole, described detection hole 313 can and receive for described optical detection elements 331 emissions and detect light beam, and penetrable described printing opacity pipe fitting 10 is to detect the position of described buoy 20; Moreover, offer a signal seat hole 314 on the described box body 31 shown in Fig. 7 drawing, and correspondence is provided with a signal seat 332 on described circuit board 33, and described signal seat 332 can be electrically connected to a controller or other device, so that described optical detection elements 331 measured signals are sent utilization;

At least one stop part 40, described stop part 40 comprises on one stop part 411 and stop part 412 once, described stop part 40 central authorities protrude out and are provided with a block post 42, and described stop part 40 peripheries are equipped with at least one opening 43, can circulate for liquid, wherein, described upward stop part 411 and described stop part 412 down are located at the place, two ends of described printing opacity pipe fitting 10 respectively, limiting the height extreme position of described buoy 20, and the installation direction of described block post 42 is towards the direction of described buoy 20;

Shown in Fig. 4 drawing, it is that the utility model is implemented on the user mode synoptic diagram that lowest water level detects, this moment, described pedestal 30 correspondences were installed on down stop part 412 places, to detect the lowest water level of liquid level, when printing opacity pipe fitting 10 of the present utility model is connected to liquid level to be detected with a connecting pipe 11, and will put in order the height place that group level detection module is installed on nearly predetermined detection in advance earlier; Because the effect of fluid connection pipe principle, the liquid level of described printing opacity pipe fitting 10 is equal to described liquid level to be detected, and therefore described buoy 20 is subjected to buoyancy, floats on the liquid level place of described printing opacity pipe fitting 10; Wherein, on the described printing opacity pipe fitting 10 other pipe fitting can be installed, overflow, and described upward stop part 411 can limit the extreme higher position of described buoy 20, deviates from described printing opacity pipe fitting 10 to prevent described buoy 20 to prevent liquid level to be detected from surpassing printing opacity pipe fitting 10;

When liquid level to be detected descends, described buoy 20 also descends with the liquid level variation of described printing opacity pipe fitting 10, when buoy 20 is contacted with the block post 42 of described stop part 412 down, but buoy 20 is stated in described stop part 412 block residences down, and be positioned at the optical detection elements 331 of printing opacity pipe fitting 10 both sides, owing to the light beam that detects is interrupted by buoy 20 blocks, also promptly record water level and dropped to lowest water level, the lowest water level signal can be sent;

Shown in Fig. 5 drawing, it is that the utility model is implemented on the user mode synoptic diagram that peak level detects, this moment, described pedestal 30 correspondences were installed on stop part 411 places, to detect the peak level of liquid level, when liquid level to be detected rises, described buoy 20 also rises with the liquid level variation of described printing opacity pipe fitting 10, when buoy 20 is contacted with the block post 42 of described upward stop part 411, but buoy 20 is stated in described stop part 412 block residences down, and be positioned at the optical detection elements 331 of printing opacity pipe fitting 10 both sides, owing to the light beam that detects is interrupted by buoy 20 blocks, that is record water level and risen to peak level;

Shown in Fig. 6 drawing, the utility model also can be contacted simultaneously, and how group level detection modules are used, change to detect the multistage height of water level, and each level detection intermodule only needs can to contact mutually with a connecting tube, and can be simultaneously in the level detection module in the highest and lowest water level locate respectively establish a pedestal 30, by the highest and lowest water level that detects many group level detection modules simultaneously, only need simple logical operation, can extrapolate the height of current water level, so the utility model can be applied to the purposes that some need more accurate level measuring, and not be that the highest simple and lowest water level detects;

Moreover, shown in Fig. 7 drawing, the utility model more can be provided with the elasticity salient point 315 of plural number on the interior ancient piece of jade, round, flat and with a hole in its centre of described perforation 312, so that in the described perforation 312 of described printing opacity pipe fitting 10 easier engagings, also easily along with user's demand difference, adjust described pedestal 30 and be installed on position on the described printing opacity pipe fitting 10;

And described stop part 40 peripheries also can convex with at least one holding block 44, and be provided with at least one groove 101 in described printing opacity pipe fitting 10 inwall correspondences, so that described stop part 40 can be fixed in the described printing opacity pipe fitting 10, wherein, described groove 101 more can be inside convergent, so that described stop part 40 can tighten fixedly difficult drop-off, and sets by the degree of depth of described groove 101, can allow stop part 40 be positioned ad-hoc location, use with ease of assembly; Or described stop part 40 also can with the making that is formed in one of described printing opacity pipe fitting 10, for example, described down stop part 412 can be formed in one with described printing opacity pipe fitting 10, and described go up stop part 411 can with described printing opacity pipe fitting 10 for being movably fastened, conveniently to insert buoy.

More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection domain of the present utility model.

Claims

1, a kind of liquid level detection device is characterized in that, it includes at least:

At least one printing opacity pipe fitting, it is the made hollow tubular product of a light-permeable material, described printing opacity pipe fitting one end is connected to a liquid level to be detected with a connecting pipe;

At least one buoy, it is located in the described printing opacity pipe fitting, and produces height change with described liquid level to be detected;

At least one pedestal, described pedestal is provided with a perforation, and described perforation makes described pedestal be sheathed on the described printing opacity pipe fitting corresponding to the cross section of described printing opacity pipe fitting; Wherein, be provided with an optical detection elements in the described pedestal, to detect the position of described buoy;

At least one stop part, it is located in the described printing opacity pipe fitting, detects liquid level, with described buoy block in detecting the target place.

2, liquid level detection device as claimed in claim 1 is characterized in that, described buoy is the ball of a density less than tracer liquid.

3, liquid level detection device as claimed in claim 1 is characterized in that, described pedestal includes the box body of a hollow and a driving fit in the lid of described box body, convexes with the prominent eaves of a perforation in the described box body, to form described perforation; Described box body also includes a circuit board, installs for described optical detection elements on the described circuit board; Be concaved with the detection hole of two-phase correspondence on the prominent eaves of described perforation, described detection hole is for described optical detection elements emission and receive the detection light beam; Offer a signal seat hole on the described box body, and correspondence is provided with a signal seat on described circuit board.

4, liquid level detection device as claimed in claim 1 is characterized in that, described perforation inwall is provided with the elasticity salient point of plural number, so that described printing opacity pipe fitting is fastened in the described perforation.

5, liquid level detection device as claimed in claim 1 is characterized in that, described stop part central authorities respectively protrude out and are provided with a block post, and described stop part periphery is equipped with at least one opening, circulation for liquid; Described stop part periphery convexes with at least one holding block, and is provided with at least one groove in described printing opacity pipe fitting inner wall correspondence, so that described stop part is fixed in the described printing opacity pipe fitting.

6, liquid level detection device as claimed in claim 5 is characterized in that, described groove is inside convergent.

7, liquid level detection device as claimed in claim 5 is characterized in that, described stop part and described printing opacity pipe fitting are formed in one.

8, liquid level detection device as claimed in claim 7 is characterized in that, described stop part comprises on one stop part and stop part once; Described upward stop part and described stop part down are located at the place, two ends of described printing opacity pipe fitting respectively, to limit the height extreme position of described buoy; The installation direction of described block post is towards the direction of described buoy.

9, liquid level detection device as claimed in claim 8 is characterized in that, described pedestal correspondence is installed on described stop part place down, to detect the lowest water level of liquid level.

10, liquid level detection device as claimed in claim 8 is characterized in that, described pedestal correspondence is installed on the described stop part place of going up, to detect the peak level of liquid level.