Laser liquid level instrument with positioning disc

Abstract

The utility model discloses a laser liquid level instrument with a positioning disc, which comprises a laser liquid level instrument body and the positioning disc, and the laser liquid level instrument body comprises a laser ranging head and a ranging insertion rod axially mounted at the bottom of the laser ranging head; a hollow cavity is formed inside the distance measuring insertion rod, a scale section and a positioning section located below the scale section are formed on the distance measuring insertion rod, and a plurality of through holes communicated with the hollow cavity are formed in the scale section and the positioning section; the scale section is provided with scale marks along the axial direction; the positioning disc is detachably installed on the positioning section, the top of the positioning disc extends outwards to be provided with a check ring edge, and the check ring edge is flush with the 0 position of the scale line. According to the utility model, the zero position of the scale on the laser liquid level instrument can be quickly and accurately aligned with the bottom surface of an area to be measured.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser liquid level gauge technical field especially is involved in a kind of laser liquid level gauge with positioning disc. BACKGROUND

[0002] Laser liquid level gauge is the instrument that the bottom surface relative liquid level height of the region to be measured is measured by laser ranging sensor.But when measuring the bottom of rice field, pond, reservoir, river and the like is soil, soft material scene, the scale 0 on the laser liquid level gauge cannot be quickly, accurately aligned with the bottom surface of the region to be measured by existing laser liquid level gauge, affect the ranging efficiency of liquid level height. SUMMARY

[0003] The utility model discloses a kind of laser liquid level gauge with positioning disc.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of laser liquid level gauge with positioning disc, including laser liquid level gauge body and positioning disc, the laser liquid level gauge body includes laser ranging head and the ranging insertion rod being axially installed to the bottom of laser ranging head;The ranging insertion rod is internally provided with hollow cavity, ranging insertion rod is formed with scale section and the positioning section located below scale section, and scale section and positioning section are provided with a plurality of through holes being communicated with hollow cavity;Scale section is provided with scale line along the axial direction;Positioning section is detachably mounted with the positioning disc, positioning disc is externally provided with retaining ring edge at top, retaining ring edge is flush with the 0 of scale line.

[0006] As a further technical scheme of the utility model: the ranging insertion rod is formed with coniform section below positioning section.

[0007] As a further technical scheme of the utility model: the retaining ring edge is formed with the inner ring section being horizontal and the outer ring section being trumpet-shaped and expanding downward.

[0008] As a further technical scheme of the utility model: the positioning disc is provided with sleeve portion matched with the outer diameter of positioning section at bottom and is provided with cylinder body portion connecting retaining ring edge and sleeve portion at middle portion, and sleeve portion is detachably connected with positioning section.

[0009] As a further technical scheme of the utility model: two perforations are provided on the opposite sides of positioning section, and two screw interfaces corresponding to two perforations are provided on sleeve portion, and after bolt is inserted into two screw interfaces and two perforations, the end is screwed into nut and fastened.

[0010] As a further technical scheme of the utility model: the inner diameter of cylinder body portion is greater than the outer diameter of positioning section, and liquid inlet cavity is formed in it;The liquid inlet cavity is covered by the through hole of positioning section.

[0011] As a further technical scheme of the utility model: the upper part of the barrel body part is in a cylindrical shape, and the lower part is in a tapered cylindrical shape that gradually narrows.

[0012] As a further technical scheme of the utility model: the laser ranging head is provided with a laser ranging sensor that emits a laser beam into the ranging insertion rod at the bottom, and the scale section is provided with a float ball that can float on the liquid surface in the hollow cavity, so as to cooperate with the laser ranging sensor to measure the distance of the liquid surface.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the laser liquid level meter with a positioning disc can quickly and accurately align the scale 0 position on the laser liquid level meter with the bottom surface of the area to be measured when measuring the bottom of the paddy field, pond, water storage tank, river, and other scenes with soil and soft material, thereby effectively improving the ranging efficiency of the liquid level height. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an assembly view of the laser liquid level meter with a positioning disc.

[0015] Figure 2 It is a schematic view of the laser liquid level meter body.

[0016] Figure 3 It is a use state view of the laser liquid level meter with a positioning disc. DETAILED DESCRIPTION

[0017] The specific embodiments of the utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the protection scope of the utility model.

[0018] Please refer to Figure 1 , Figure 2 and Figure 3The utility model provides a kind of laser liquid level gauge with positioning disc, including laser liquid level gauge body 10 and positioning disc 20, the laser liquid level gauge body 10 includes laser ranging head 11 and the ranging insertion rod 12 axially installed to the bottom of laser ranging head 11, the ranging insertion rod 12 is internally provided with hollow cavity, ranging insertion rod 12 is sequentially formed with scale section 121, positioning section 122 and cone foot section 123 from top to bottom, and scale section 121 and positioning section 122 are provided with a plurality of through holes 101 communicated with hollow cavity;The scale section 121 is provided with scale line 102 along the axial direction;Positioning section 122 is detachably mounted with the positioning disc 20, the positioning disc 20 is provided with the baffle ring side 21 outside at top, the baffle ring side 21 is formed with the inner ring section 211 of horizontal shape and the outer ring section 212 of trumpet shape that is downwardly expanded, for positioning disc 20 installation, baffle ring side 21 is flush with scale line 102 0 position with inner ring section 211, with cone foot section 123 inserted into the region to be measured, outer ring section 212 supports the bottom surface of the region to be measured, and laser liquid level gauge body 10 is positioned in the region to be measured axially.

[0019] Further, in the embodiment, the positioning disc 20 is provided with a sleeve portion 22 matched with the outer diameter of the positioning section 122 at the bottom and a barrel portion 23 connecting the baffle ring side 21 and the sleeve portion 22 at the middle portion, and the sleeve portion 22 is detachably connected with the positioning section 122.

[0020] Further, in the embodiment, two through holes 103 are oppositely provided on the positioning section 122, and two screw interfaces 201 corresponding to the two through holes 103 are provided on the sleeve portion 22, so that the ends of the bolts are screwed into the nuts after the bolts pass through the two screw interfaces 201 and the two through holes 103, thereby detachably connecting the sleeve portion 22 with the positioning section 122.

[0021] Further, in the embodiment, the inner diameter of the barrel portion 23 is larger than the outer diameter of the positioning section 122, and a liquid inlet cavity 202 is formed in the barrel portion 23; the liquid inlet cavity 202 covers the through holes 101 on the positioning section 122.

[0022] Further, in the embodiment, the upper portion of the barrel portion 23 is in a cylindrical shape, and the lower portion is in a tapered cylindrical shape.

[0023] Further, in the embodiment, the laser ranging head 11 is provided with a laser ranging sensor emitting a laser beam into the ranging insertion rod 12 at the bottom, and a floating ball capable of floating on the liquid surface is arranged in the hollow cavity of the scale section 121, so as to cooperate with the laser ranging sensor to measure the distance of the liquid surface.

[0024] Further, in the embodiment, the scale section 121 and the positioning section 122 of the ranging insertion rod 12 are an integral piece, and the cone foot section 123 is a separate piece, which is fixed to the bottom of the positioning section 122 by gluing.

[0025] It can be understood that the use method of the laser liquid level meter with the positioning disc comprises the following steps: first, install the positioning disc 20 on the positioning section 122 of the laser liquid level meter body 10, and the blocking ring edge 21 of the positioning disc 20 is flush with the 0 position of the scale line 102; second, insert the laser liquid level meter body 10 into the area to be measured by the conical foot section 123, and the outer ring section 212 of the positioning disc 20 abuts against the bottom surface of the area to be measured, so that the laser liquid level meter body 10 is axially positioned in the area to be measured; liquid flows into the hollow cavity from the through hole 101, and drives the floating ball to float with the liquid surface; third, start the laser ranging head 11, the laser ranging sensor emits a laser beam into the ranging insertion rod 12, the floating ball reflects the laser beam back to the laser ranging sensor, and the laser ranging sensor calculates the distance from the liquid surface to the bottom surface according to the time from emission to reception.

[0026] In conclusion, the laser liquid level meter with the positioning disc can quickly and accurately align the scale 0 position on the laser liquid level meter with the bottom surface of the area to be measured when measuring the bottom of the paddy field, pond, reservoir, river and the like which is made of soil and soft material, thereby effectively improving the ranging efficiency of the liquid level height.

[0027] As long as the various different embodiments of the utility model are combined without violating the creative idea of the utility model, they should be regarded as the disclosed contents of the utility model; within the technical concept of the utility model, various simple modifications of the technical scheme and arbitrary combinations of different embodiments without violating the creative idea of the utility model should be within the protection scope of the utility model.

Claims

1. A laser level gauge with a positioning disk, characterized in that: The device includes a laser level gauge body (10) and a positioning disk (20). The laser level gauge body (10) includes a laser ranging head (11) and a ranging rod (12) axially mounted to the bottom of the laser ranging head (11). The ranging rod (12) has a hollow cavity inside. The ranging rod (12) forms a scale section (121) and a positioning section (122) located below the scale section (121). The scale section (121) and the positioning section (122) are provided with several through holes (101) communicating with the hollow cavity. The scale section (121) is provided with scale lines (102) along the axial direction. The positioning section (122) is detachably mounted with the positioning disk (20). The positioning disk (20) has a retaining ring edge (21) extending outward from the top. The retaining ring edge (21) is flush with the 0 position of the scale line (102).

2. The laser level gauge with positioning disk according to claim 1, characterized in that: The ranging rod (12) has a conical foot section (123) formed below the positioning section (122).

3. The laser level gauge with positioning disk according to claim 1, characterized in that: The retaining ring edge (21) is formed with a horizontal inner ring segment (211) and a downwardly expanding trumpet-shaped outer ring segment (212).

4. The laser level gauge with positioning disk according to claim 1, characterized in that: The positioning disk (20) has a sleeve part (22) at the bottom that matches the outer diameter of the positioning section (122) and a cylinder part (23) in the middle that connects the retaining ring edge (21) to the sleeve part (22). The sleeve part (22) and the positioning section (122) are detachably connected.

5. The laser level gauge with positioning disk according to claim 4, characterized in that: The positioning section (122) has two through holes (103) facing each other. The sleeve part (22) is provided with two screw interfaces (201) corresponding to the two through holes (103), so that after the bolt is inserted into the two screw interfaces (201) and the two through holes (103), its end is screwed into the nut for fastening.

6. The laser level gauge with positioning disk according to claim 4, characterized in that: The inner diameter of the cylindrical body (23) is larger than the outer diameter of the positioning section (122), and a liquid inlet cavity (202) is formed therein; the liquid inlet cavity (202) covers the through hole (101) located in the positioning section (122).

7. The laser level gauge with positioning disk according to claim 4, characterized in that: The upper part of the cylindrical body (23) is cylindrical, and the lower part is tapered.

8. The laser level gauge with positioning disk according to claim 1, characterized in that: The laser rangefinder (11) has a laser rangefinder sensor at the bottom that emits a laser beam into the rangefinder insert (12). The scale section (121) has a float in the hollow cavity that can float with the liquid surface, which is used to cooperate with the laser rangefinder sensor to measure the distance to the liquid surface.

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