CN214308989U - Vernier caliper for quickly and accurately measuring liquid level in measuring cylinder - Google Patents

Abstract

The utility model discloses a vernier caliper for quickly and accurately measuring the liquid level height in a measuring cylinder, which relates to the field of concrete material expansion ratio detection. The vernier caliper includes a vertically arranged main ruler and a vernier sleeved on the main ruler to slide vertically; a sliding contact half-ring is horizontally installed at the bottom of the vernier side, and a half-ring cross-section is arranged in the inner cavity of the sliding contact half-ring. Triangular sliding contact, the bottom surface of the sliding contact is flush with the bottom surface of the sliding contact half ring; a fixed contact ring is horizontally arranged on the side bottom of the main ruler, and a ring of fixed contact with a triangular cross-section is arranged on the upper part of the inner cavity of the fixed contact ring , the top surface of the fixed antenna and the top surface of the fixed contact ring are flush with the zero scale line of the main ruler; the bottom plate is hung under the fixed contact ring by adjusting the height and leveling screws. The utility model can realize rapid and accurate measurement of the liquid level height in the measuring cylinder, and has the advantages of fast measurement efficiency, high accuracy, simple structure, convenient operation and wide application range.

Description

Vernier caliper for quickly and accurately measuring liquid level in measuring cylinder

Technical Field

The utility model relates to a technical field that the concrete material expansion rate detected, more specifically say a slide caliper of liquid level height in quick accurate measurement graduated flask, especially is fit for being used for detecting the expansion rate of mud jacking material.

Background

The free bleeding rate and free expansion rate test of the common grouting material is generally carried out according to the specification of standard TB/T3192-2008 or Q/CR 409-2017, a closed transparent glass tube with the diameter of 60mm and the height of 500mm and the bottom of the tube is sealed or a 1000mL measuring cylinder is adopted, the uniformly stirred slurry is slowly injected into a test container, the volume of the injected slurry is 800mL +/-10 mL, and the initial height of the slurry liquid level and the height of the slurry expansion surface after a certain time are recorded after the slurry is injected. Because only volume scale marks are arranged on the side wall surface of the 1000mL measuring cylinder, the height value of the liquid level cannot be directly read. If a steel plate ruler is adopted to directly measure the height of the liquid level, on one hand, the measurement precision is low and the measurement accuracy is not enough; on the other hand, the lower end base of the measuring cylinder is a curved surface, so that the steel plate ruler cannot be vertically placed, and the error of a measuring result is large. If the vernier caliper is directly used for measuring the liquid level, due to the particularity of the measuring cylinder structure, the zero line of the vernier caliper is not flush with the bottom of the liquid in the measuring cylinder, namely, the liquid level cannot be accurately zero, and the error of the concave liquid level of the liquid in the cylinder is directly observed by eyes is large, so that the existing vernier caliper cannot be used for quickly and accurately measuring the liquid level in the measuring cylinder.

Disclosure of Invention

The utility model aims at providing a quick accurate slide caliper who measures liquid level in the graduated flask just to the weak point that exists among the above-mentioned prior art. Utilize the utility model discloses can realize quick measurement and accurate measurement to liquid level in the graduated flask, have that measurement of efficiency is fast, measurement accuracy is high, simple structure, convenient operation, application scope are wide advantage, solved liquid level in the graduated flask and measured the unsafe technical problem.

The purpose of the utility model can be realized by the following technical measures:

the utility model relates to a vernier caliper for quickly and accurately measuring the liquid level in a measuring cylinder, which comprises a main ruler and a vernier, wherein the main ruler is vertically arranged, and the vernier is sleeved on the main ruler and vertically slides; when the height of the liquid level in the measuring cylinder needs to be measured, the vernier is adjusted to vertically slide along the main ruler, and simultaneously the contact semi-ring and the sliding feeler are driven to vertically slide, so that the height of the liquid level in the measuring cylinder can be quickly and accurately read out by enabling the bottom surface of the sliding feeler to be flush with the concave liquid level of the liquid level in the measuring cylinder; the side bottom of the main ruler is horizontally provided with a fixed contact ring, the upper part of an inner cavity of the fixed contact ring is provided with a circle of fixed feelers with triangular cross sections, and the top surfaces of the fixed feelers and the fixed contact ring are both aligned with a zero scale line of the main ruler (when the zero calibration of the instrument is carried out, the sliding feelers are occluded with the fixed feelers, so that the bottom surfaces of the sliding feelers are aligned with the top surfaces of the fixed feelers, namely the bottom surfaces of the sliding feelers are aligned with the zero scale line of the main ruler, and the zero calibration operation of the instrument is more convenient); a bottom plate (the bottom plate is used for supporting the measuring cylinder and liquid in the measuring cylinder) is hung below the fixed contact ring through a plurality of height-adjusting leveling screws, the height-adjusting leveling screws can adjust the levelness of the bottom plate and the bottom surface of the measuring cylinder on one hand, namely, the bottom surface of the measuring cylinder is ensured to be vertical to the main scale, and on the other hand, the height position of the measuring cylinder in the vertical direction, namely, the liquid bottom surface in the measuring cylinder is adjusted to be flush with the zero scale of the main scale, namely, zero-adjusting treatment can be carried out.

The utility model discloses in sliding contact semi-ring passes through the fixed screw to be fixed in the side bottom of vernier (just can convenient and fast ground change with different specification graduated flask assorted sliding contact semi-ring through dismantling the fixed screw).

The design principle of the utility model is as follows:

the utility model adds a horizontally arranged fixed contact ring at the bottom of the main ruler side of the traditional standard vernier caliper, and a circle of fixed antenna with a triangular cross section is arranged at the upper part of the inner cavity of the fixed contact ring, and the top surface of the fixed antenna and the top surface of the fixed contact ring are all level with the zero graduation line of the main ruler; the utility model discloses still increase the sliding contact semi-ring that has horizontal installation bottom traditional standard slide caliper's vernier side, be provided with the sliding contact angle that the semicircle cross section is triangle-shaped in the inner chamber of sliding contact semi-ring, and the bottom surface parallel and level of sliding contact angle's bottom surface and sliding contact semi-ring. Therefore, when the instrument is calibrated, the sliding antenna is occluded with the fixed antenna, and as long as the bottom surface of the sliding antenna is flush with the top surface of the fixed antenna, the bottom surface of the sliding antenna is flush with the zero scale mark of the main scale, so that the instrument is more convenient to calibrate; when zeroing treatment before measurement is carried out, the leveling screws are heightened to drive the bottom plate and the measuring cylinder to translate in the vertical direction, and as long as the bottom surface of liquid in the measuring cylinder is flush with the top surface of the fixed antenna, the bottom surface of the liquid in the measuring cylinder is flush with a zero scale mark of the main scale, so that the zeroing treatment before measurement is more convenient; when the liquid level in the measuring cylinder needs to be measured, the vernier is adjusted to vertically slide along the main scale, and meanwhile, the contact semi-ring and the sliding feeler are driven to vertically slide, so that the bottom surface of the sliding feeler is flush with the concave liquid level of the liquid level in the measuring cylinder, and the liquid level in the measuring cylinder can be rapidly and accurately read. Therefore utilize the utility model discloses can realize quick measurement and accurate measurement to liquid level in the graduated flask, have that measurement of efficiency is fast, measurement accuracy is high, simple structure, convenient operation, application scope are wide advantage, solved liquid level in the graduated flask and measured the unsafe technical problem. Furthermore, the utility model discloses can just can satisfy the test demand of multiple specification graduated flask through change with different specification graduated flask assorted sliding contact semi-rings, have application scope extensively, the strong advantage of commonality.

The utility model has the advantages of:

utilize the utility model discloses can realize quick measurement and accurate measurement to liquid level in the graduated flask, have that measurement of efficiency is fast, measurement accuracy is high, simple structure, convenient operation, application scope are wide advantage, solved liquid level in the graduated flask and measured the unsafe technical problem.

Drawings

Fig. 1 is a schematic structural diagram of the present invention in a measurement state.

Fig. 2 is a schematic structural diagram of the present invention in the zero-alignment state.

Fig. 3 is a schematic perspective view of the sliding contact ring and the sliding antenna according to the present invention.

Fig. 4 is a top view of the fixed contact ring and the fixed antenna of the present invention.

Part numbers in the drawings: 1. the device comprises a main ruler, 2 parts of a vernier, 3 parts of a sliding contact semi-ring, 3-1 parts of a sliding antenna, 4 parts of a fixed contact ring, 4-1 parts of a fixed antenna, 5 parts of a height-adjusting leveling screw, 6 parts of a fixed screw, 7 parts of a bottom plate, 8 parts of a measuring cylinder, 9 parts of liquid.

Detailed Description

The utility model is further described with the following figures:

as shown in fig. 1 to 4, the vernier caliper for quickly and accurately measuring the liquid level in the measuring cylinder of the present invention comprises a main scale 1 vertically arranged, and a vernier 2 vertically sliding on the main scale 1; the bottom of the side of the vernier 2 is horizontally provided with a sliding contact semi-ring 3, the inner cavity of the sliding contact semi-ring 3 is provided with a semi-ring sliding antenna 3-1 with a triangular cross section, and the bottom surface of the sliding antenna 3-1 is flush with the bottom surface of the sliding contact semi-ring 3 (before use, the sliding antenna 3-1 is meshed with a fixed antenna 4-1, and if the reading of a vernier caliper is zero, the zero calibration of an instrument is realized, when the height of the liquid level in the measuring cylinder needs to be measured, the vernier 2 is adjusted to vertically slide along the main ruler 1, and the contact semi-ring 3 and the sliding antenna 3-1 are driven to vertically slide at the same time, so that the height of the liquid level in the measuring cylinder can be quickly and accurately read by making the bottom surface of the sliding antenna 3-1 flush with the concave liquid level of the liquid level in the measuring cylinder); the lateral bottom of the main ruler 1 is horizontally provided with a fixed contact ring 4, the upper part of the inner cavity of the fixed contact ring 4 is provided with a circle of fixed feeler 4-1 with a triangular cross section, the top surface of the fixed feeler 4-1 and the top surface of the fixed contact ring 4 are both aligned with the zero graduation line of the main ruler 1 (when the instrument is calibrated, the sliding feeler 3-1 is meshed with the fixed feeler 4-1, as long as the bottom surface of the sliding feeler 3-1 is aligned with the top surface of the fixed feeler 4-1, the bottom surface of the sliding feeler 3-1 is aligned with the zero graduation line of the main ruler 1, the zero calibration operation of the instrument is more convenient, when the zero calibration treatment before the measurement is carried out, the leveling screw 5 is heightened to drive the bottom plate 7 and the measuring cylinder 8 to translate in the vertical direction, as long as the bottom surface of the liquid in the measuring cylinder is aligned with the top surface of the fixed feeler 4-1, the bottom surface of the liquid 9 in the measuring cylinder is aligned with the zero graduation line of the main ruler 1, zero adjustment treatment before measurement is more convenient); a bottom plate 7 is hung below the fixed contact ring 4 through a plurality of height-adjusting leveling screws 5 (the bottom plate 7 is used for supporting a measuring cylinder and liquid 9 in the measuring cylinder; the height-adjusting leveling screws 5 can adjust the levelness of the bottom surfaces of the bottom plate 7 and the measuring cylinder 8 on one hand, namely, the bottom surface of the measuring cylinder 8 is ensured to be vertical to the main scale 1, and can adjust the height position of the measuring cylinder 8 in the vertical direction, namely, the bottom surface of the liquid in the measuring cylinder is adjusted to be flush with the zero scale of the main scale, namely, zero adjustment treatment).

The utility model discloses in sliding contact semi-ring 3 passes through set screw 6 to be fixed in the side bottom of vernier 2 (just can convenient and fast ground change with different specification graduated flask assorted sliding contact semi-ring 3 through dismantling set screw 6).

The utility model discloses a concrete in service behavior as follows:

firstly, instrument zero calibration is carried out, namely the sliding contact semi-ring 3 is adjusted to drive the sliding antenna 3-1 to vertically move downwards until the sliding antenna 3-1 is meshed with the fixed antenna 4-1, and if the bottom surface of the sliding antenna 3-1 is level with the top surface of the fixed antenna 4-1 at the moment, namely the bottom surface of the sliding antenna 3-1 is level with the zero graduation line of the main scale 1, the instrument zero calibration is realized. Then, the measuring cylinder 8 penetrates through the fixed contact ring 4 and the sliding contact semi-ring 3 from bottom to top, and the height-adjusting leveling screws 5 are adjusted: on one hand, the levelness of the bottom surfaces of the bottom plate 7 and the measuring cylinder 8 can be adjusted, namely the bottom surface of the measuring cylinder 8 is ensured to be vertical to the main scale 1; on the other hand, the height position of the measuring cylinder 8 in the vertical direction can be adjusted, namely the bottom surface of liquid in the measuring cylinder is adjusted to be flush with the top surface of the fixed antenna 4-1, namely the bottom surface of the liquid in the measuring cylinder is equal to be flush with the zero scale mark of the main scale 1, namely zero adjustment is realized. Then, the vernier 2 is adjusted to vertically slide along the main ruler 1, and simultaneously, the contact semi-ring 3 and the sliding feeler 3-1 are driven to vertically slide, so that the bottom surface of the sliding feeler 3-1 is flush with the concave liquid level of the liquid level in the measuring cylinder, and the liquid level height in the measuring cylinder can be rapidly and accurately read.

Claims (2)

1. The utility model provides a quick accurate vernier caliper who measures liquid level in graduated flask, includes vertical main scale (1), the suit of arranging and goes up vertical gliding vernier (2) on main scale (1), its characterized in that: a sliding contact semi-ring (3) is horizontally arranged at the bottom of the side of the vernier (2), a semi-circle of sliding antenna (3-1) with a triangular cross section is arranged in the inner cavity of the sliding contact semi-ring (3), and the bottom surface of the sliding antenna (3-1) is flush with the bottom surface of the sliding contact semi-ring (3); a fixed contact ring (4) is horizontally arranged at the bottom of the side of the main scale (1), a circle of fixed antenna (4-1) with a triangular cross section is arranged at the upper part of an inner cavity of the fixed contact ring (4), and the top surface of the fixed antenna (4-1) and the top surface of the fixed contact ring (4) are flush with the zero graduation line of the main scale (1); a bottom plate (7) is hung below the fixed contact ring (4) through a plurality of height-adjusting leveling screws (5).

2. The vernier caliper for quickly and accurately measuring the liquid level in the measuring cylinder according to claim 1, which is characterized in that: the sliding contact semi-ring (3) is fixed at the side bottom of the vernier (2) through a fixing screw (6).

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