CN202075013U

CN202075013U - Device for measuring water level

Info

Publication number: CN202075013U
Application number: CN2011201322697U
Authority: CN
Inventors: 韦永将
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2011-12-14
Anticipated expiration: 2021-04-29

Abstract

The utility model discloses a device for measuring water level, comprising a separable water level probe manufactured by an insulator, wherein a first detecting hole and a second detecting hole are separatedly arranged on the probe, the first detecting hole and the second detecting hole are respectively electrically connected with a first lead and a second lead, an elevating mechanism is connected with the first lead and the second lead and can drive the probe to move up and down, and ends of the first lead and the second lead are connected with a ohmmeter. According to the device for measuring water level of the utility model, by adopting the separable water level probe, the ground is no longer used as a conductor, thus the device can be still used in the case that dirt is existed in a water body, and no good earth conductor on the ground can be used; in addition, the device has the advantages of accurate measure and wide applicable occasion.

Description

A kind of level measurement device

Technical field

The utility model relates to a kind of level measurement device.

Background technology

The water level lining rope is an instrument of measuring water level, can be used for measuring boring middle water level, well water level, river level etc.In hydrogeology work, the water level lining rope instrument that is absolutely necessary, and often use.But, practical, moulding in the market water level lining rope, some high-tech products cost an arm and a leg such as the ultrasonic water level measuring instrument, nor necessarily are applicable to the level measuring of boring.This paper analyzes the shortcoming of present self-control lining rope, and proposes improvement project.At present, measuring superficial water level, within 30 m, often is the lining rope of buying the band scale from the surveying instrument shop, binds the survey clock on fag end, and the sound when contacting with the water surface by clock is judged water surface site, thereby measures water level depth.The accuracy of this survey clock measuring method is low, and the degree of depth is also limited.Owing to do not have complete equipment on the market, the hydrogeologist uses lead, probe (hollow ambroin inside always at present, stud with an iron pipe, iron pipe links to each other with single condctor), runner, universal meter etc., probe is connect with lead, calibrate rice number on lead, oneself makes lining rope.Its measuring principle is: the positive pole or the negative pole of universal meter on lead one termination, another utmost point of universal meter links to each other with the earth, when the moment of probe contact water body, form lead, water, the earth conductor circuit, resistance value becomes finite value by infinity, universal meter just can detect this variation, and the expression probe has contacted water level, and the degree of depth of at this moment measuring lead can obtain water level depth.Yet there is following shortcoming in the self-control lining rope:

(1) geologist's limited time of working in the open air, oneself makes lining rope, and process is loaded down with trivial details, and waste of manpower and time;

(2) lead distortion causes measurement result inaccurate.If the water level depth of measuring is below 30 m, lining rope need be born self bigger gravity, and the lead rope will stretch elongated, causes measurement result inaccurate;

(3) mistake is surveyed easily.This shortcoming is caused by the structure of probe.Probe is one little section iron pipe, the outside ambroin that makes a circle, and when there is dirt on the water surface upper strata of measuring (unclean as hole flushing), dirt is attached to be bonded between the iron pipe and ambroin of probe, even stops up probe; Because dirt itself is moist, if ambroin is also moist, will cause path and open circuit conditions not obvious, be difficult to distinguish the water level position, cause measuring inaccurate not even energy measurement;

(4) limited by site condition.If the face of land do not have to be concrete floor or to measure the degree of depth of the water surface apart from bridge on bridge such as the face of land can be for the big earthed conductor that utilizes the time, this situation is energy measurement not just;

(5) the scale rice on the lead count mark usually can be shifted, come off or reference numerals aging, smudgy, bring great inconvenience even mistake to surveying work.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of measure accurate, applicable situation level measurement device wide, with low cost.

In order to solve the problems of the technologies described above, a kind of level measurement device of the present utility model, comprise the separate type water-level probe that insulator is made, be separated by on the described probe and be provided with first, second spy eye, this first, second spy eye is electrically connected with first, second lead respectively, have elevating mechanism be connected with first, second lead and can drive the probe up and down, described first, second wire end is connected with ohmmeter.

As improvement of the technical scheme, be respectively arranged with first, second arc cavity that opening deviates from mutually on the described separate type water-level probe, described first, second visited eye and laid respectively in first, second arc cavity.

As improvement of the technical scheme, described first, second lead is respectively one of heart yearn in the duplex wire.Described duplex wire surface has scale, and no elastoplasticity can be crooked.Described ohmmeter is a multimeter.

As improvement of the technical scheme, described elevating mechanism comprises support, and the rotating cylinder that is used to twine duplex wire is installed on the support, and this rotating cylinder is provided with crank.

The beneficial effects of the utility model are: this level measurement device is owing to adopt the separate type water-level probe, can accurately distinguish water surface site makes measurement more accurate, when water body has dirt, ground not to have utilizable good big earthed conductor, still can use, ensure measure accurately, the wide level measurement device of applicable situation.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Embodiment

With reference to Fig. 1, a kind of level measurement device of the present utility model, comprise the separate type water-level probe 1 that insulator is made, be separated by on the described probe 1 and be provided with first, second spy eye 2,3, this first, second spy eye 2,3 is electrically connected with first, second lead 4,5 respectively, have elevating mechanism 6 to be connected with first, second lead 4,5 and can to drive probe 1 up and down, described first, second lead 4,5 ends are connected with ohmmeter.Wherein, described ohmmeter is a multimeter.This level measurement device is owing to adopt separate type water-level probe and first, second lead conducting, when water body has dirt, ground not to have utilizable good big earthed conductor, still can use, ensure measure accurately, the wide level measurement device of applicable situation.

In the present embodiment, be respectively arranged with first, second arc cavity 7,8 that opening deviates from mutually on the described separate type water-level probe 1, described first, second visited eye 2,3 and laid respectively in first, second arc cavity 7,8.Visit the relative distribution of eye, can avoid two to visit the possibility that eye contacts with hole wall simultaneously like this for two.Visit the eye distance probe face of cylinder 5 mm, the radius of the circular arc of arc cavity is 7.5mm, and length is about 2/5 circle, and the place round-corner transition that the arc cavity contacts with cylindrical edge, fillet are about 1/4 circle, radius of corner 2.5mm.This structure can avoid visiting eye with the hole wall contact, and the periphery of arc cavity adds the effect of fillet and semicircle with the smooth material of insulation, can keep away from moisture and dirt is detained.Described first, second lead 4,5 is respectively one of heart yearn in the duplex wire, and the duplex wire surface has scale, can make things convenient for the staff to read water level depth immediately.The negative or positive electrode of multimeter connects first lead, and another utmost point connects second lead.The multimeter driver chuck is transferred to resistance measurement " * 10K " gear, in boring, be lowered to probe, first visits lore enters the water surface, second visits the moment of the eye contact water surface, water body is visited eye with first and is connected with the second spy eye, and resistance value becomes finite value (the about 3.5K Ω of this value) by infinity, and the multimeter pointer is stabilized on the finite value after obvious swing is arranged, expression has contacted water level, and the length that measure duplex wire this time is exactly the depth of burial of water level.The level measuring of other situations, such as measure the river water level on bridge, principle is identical.

Described elevating mechanism 6 comprises support 61, and the rotating cylinder 62 that is used to twine duplex wire is installed on the support 61, and this rotating cylinder 62 is provided with crank 63.Rotating cylinder 62 is to be used for twining turn-taking of lining rope, and for plastics are made, boring can alleviate the weight of measurement mechanism like this.Rotating crank 63 just can following lining rope or receipts lining rope, convenient and strength-saving.

The above only is a preferential embodiment of the present utility model, as long as realize that with basic identical means the technical scheme of the utility model purpose all belongs within the protection domain of the present utility model.

Claims

1. level measurement device, comprise the separate type water-level probe (1) that insulator is made, it is characterized in that being separated by on the described probe (1) and be provided with first, second and visit eye (2,3), this first, second spy eye (2,3) is electrically connected with first, second lead (4,5) respectively, have elevating mechanism (6) to be connected with first, second lead (4,5) and can to drive probe (1) up and down, described first, second lead (4,5) end is connected with ohmmeter.

2. a kind of level measurement device according to claim 1, it is characterized in that being respectively arranged with on the described separate type water-level probe (1) first, second arc cavity (7,8) that opening deviates from mutually, described first, second visited eye (2,3) and laid respectively in first, second arc cavity (7,8).

3. a kind of level measurement device according to claim 1 is characterized in that described first, second lead (4,5) is respectively one of heart yearn in the duplex wire.

4. a kind of level measurement device according to claim 3 is characterized in that described elevating mechanism (6) comprises support (61), and the rotating cylinder (62) that is used to twine duplex wire is installed on the support (61), and this rotating cylinder (62) is provided with crank (63).

5. a kind of level measurement device according to claim 1 is characterized in that described ohmmeter is a multimeter.

6. a kind of level measurement device according to claim 3 is characterized in that described duplex wire surface has scale, and no elastoplasticity can be crooked.