CN212341211U

CN212341211U - Mortar contraction and expansion instrument

Info

Publication number: CN212341211U
Application number: CN202021177557.XU
Authority: CN
Inventors: 李会全; 杨胜国
Original assignee: Shenzhen Yidongyang Building Material Co ltd
Current assignee: Shenzhen Yidongyang Building Material Co ltd
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2021-01-12
Anticipated expiration: 2030-06-20

Abstract

The utility model relates to a mortar contraction and expansion instrument, which comprises a base, a sliding seat connected on the base in a sliding way, a bracket fixedly connected on the base and an indicating gauge connected on the bracket; a plurality of fixing positions are arranged on the sliding seat along the sliding direction of the sliding seat, and a placing groove with an opening at the upper end is arranged on each fixing position; the indicating gauge comprises a dial plate on the fixed support and a telescopic probe in sliding connection with the dial plate, and the sliding seat slides under the indicating gauge. The utility model discloses after once having installed standard stick and test piece, accomplish measurement standard stick, calibration, can directly measure the test piece, only need when the test piece adjust the length of retractable probe can, a clamping can carry out a lot of measurements, has improved operator's work efficiency, has avoided the produced measuring error of the relapse clamping, dismantlement among the prior art simultaneously.

Description

Mortar contraction and expansion instrument

Technical Field

The utility model belongs to the technical field of the technique that building material detected and specifically relates to a mortar shrinkage dilatometer is related to.

Background

The cement mortar undergoes a volume change during its hardening process, and generally undergoes a volume contraction when it is hardened in air, and undergoes an expansion (extremely small) when it is hardened in water. The mortar contraction and expansion instrument is a detecting instrument for measuring the contraction and expansion deformation of mortar to determine the contraction coefficient and expansion parameters.

The existing mortar contraction and expansion instrument comprises a triangular support, a standard rod and a measuring frame, wherein a dial indicator is arranged on the measuring frame, and the standard rod is arranged in a square metal sheath.

The above prior art solutions have the following drawbacks: the metal sheath can only be provided with one standard rod or test piece, an operator can only detach one test piece after measuring the test piece when carrying out actual measurement, then install the next test piece for measurement, and the operation process is repeated and complicated.

SUMMERY OF THE UTILITY MODEL

The mortar shrinkage dilatometer is characterized in that the mortar shrinkage dilatometer comprises a base, a plurality of test pieces and a measuring device.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a mortar contraction and expansion instrument comprises a base, a sliding seat, a support and an indicator, wherein the sliding seat is connected to the base in a sliding mode;

a plurality of fixing positions are arranged on the sliding seat along the sliding direction of the sliding seat, and a placing groove with an opening at the upper end is arranged on each fixing position;

the indicating gauge comprises a dial plate on the fixed support and a telescopic probe in sliding connection with the dial plate, and the sliding seat slides through the lower part of the indicating gauge.

Through adopting above-mentioned technical scheme, the operator can place a standard stick and a plurality of test piece on the fixed position on the sliding seat and measure simultaneously, places the standard stick on the fixed position of doing and being close the instruction list, places the volume of awaiting measuring test piece on remaining fixed position, promotes the sliding seat after calibrating the standard stick earlier again, will wait to test the piece and push away to the instruction list below and measure, has greatly improved operator's work efficiency.

The present invention may be further configured in a preferred embodiment as: the base and the sliding seat are arranged in parallel, two equal-height and parallel sliding rails are arranged on the upper surface of the base, two equal-depth and parallel sliding grooves are formed in the lower surface of the sliding seat, and the base and the sliding seat are in matched sliding connection through the sliding rails and the sliding grooves.

By adopting the technical scheme, the sliding seat is matched with the base through the sliding rail and the sliding groove, so that the friction force between the sliding seat and the base is reduced, and the sliding seat can slide smoothly; the sliding rail and the sliding groove are designed into a semicircle, so that the sliding seat can stably slide; arranging the sliding seat and the base in parallel; the three points reduce errors generated in measurement.

The present invention may be further configured in a preferred embodiment as: and baffles are arranged at two ends of the base.

Through adopting above-mentioned technical scheme, prevent that the operator from with sliding seat roll-off slide rail when measuring, make the test piece damage test piece that drops.

The present invention may be further configured in a preferred embodiment as: the length of the sliding seat is less than half of the length of the base.

By adopting the technical scheme, all test pieces arranged on the sliding seat can slide from the lower part of the indicating gauge to measure.

The present invention may be further configured in a preferred embodiment as: four leveling bolts are respectively arranged at four corners of the base.

By adopting the technical scheme, the leveling bolts are arranged at the four corners of the base, so that the stability of the base is ensured, and an operator can adjust the height and levelness of the base through the leveling bolts.

The present invention may be further configured in a preferred embodiment as: still be provided with the leveling bubble on the base, the leveling bubble sets up the outside at two slide rails.

By adopting the technical scheme, an operator can directly judge whether the base is level or not by observing the leveling bubble, so that the leveling precision of the operator is improved.

The present invention may be further configured in a preferred embodiment as: the support comprises two upright columns perpendicular to the upper surface of the base and a cross beam fixedly connected to the upright columns, the two upright columns are arranged in the middle of the upper surface of the base, and the sliding seat slides between the two upright columns.

Through adopting above-mentioned technical scheme, made things convenient for the sliding seat to slide from the instruction list below, set up two stands on the base and strengthened the stability of crossbeam, thereby prevent to rock in measurement process crossbeam and drive the instruction list and rock the influence measurement accuracy.

The present invention may be further configured in a preferred embodiment as: the indicating meter is arranged in the middle of the beam, the beam is further provided with a knob, the knob is provided with a gear ring, the telescopic probe is provided with a rack, and the knob is meshed with the telescopic probe.

Through adopting above-mentioned technical scheme, the operator passes through the length of knob regulation retractable probe, and when the operator measured test piece or standard stick, adjust knob dropped to the upper surface of test piece or standard stick with retractable probe, and the record data rises retractable probe after the measurement is accomplished, avoids retractable probe and test piece or standard contact when the sliding seat slides, influences follow-up measurement accuracy.

To sum up, the utility model discloses a following at least one useful technological effect:

1. an operator can place a standard rod and a plurality of test pieces on a fixed position on a sliding seat for simultaneous measurement, place the standard rod on the fixed position which is close to an indicating meter, place the test pieces to be measured on the other fixed positions, firstly calibrate the standard rod, then push the sliding seat, and sequentially push the test pieces to be measured to the lower part of the indicating meter for measurement; the measurement is carried out for multiple times by one-time clamping, so that the working efficiency of an operator is greatly improved;

2. the utility model discloses after once having installed standard stick and test piece, accomplish measurement standard stick, calibration, can directly measure the test piece, only need when the test piece adjust telescopic probe's length can, avoided the produced measuring error of relapse clamping, dismantlement among the prior art.

Drawings

Fig. 1 is a schematic perspective view of the present embodiment.

Fig. 2 is a schematic cross-sectional view of the cross member of the present embodiment.

In the figure, the device comprises a base 1, a base 11, a sliding rail 12, a leveling bolt 13, a leveling bubble 14, a baffle 2, a sliding seat 21, a test piece placing groove 3, a bracket 31, an upright post 32, a cross beam 33, a knob 4, an indicating gauge 41, a dial 42 and a telescopic probe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the mortar contraction and expansion instrument disclosed in this embodiment includes a base 1, a sliding seat 2 slidably connected to the base 1, a bracket 3 fixedly connected to an upper surface of the base 1, and an indicator 4 disposed on the bracket 3. The upper surface of the base 1 is provided with two equal-height parallel slide rails 11, the cross section of each slide rail 11 is semicircular, the lower surface of the sliding seat 2 is provided with two equal-depth parallel semicircular slide grooves, the sliding seat 2 and the base 1 are in sliding connection through the slide rails 11 and the slide grooves in a matched mode, the sliding seat 2 and the base 1 are arranged in parallel, and the length of the sliding seat 2 is smaller than half of that of the base 1. Four threaded holes are formed in four corners of the base 1, four leveling bolts 12 in threaded fit are arranged in the threaded holes, the height and the levelness of the base 1 can be adjusted through the leveling bolts 12, leveling bubbles 13 are further arranged on the upper surface of the base 1, the leveling bubbles 13 are located on the outer side of the sliding rail 11, the sliding seat 2 cannot block the leveling bubbles 13, and an operator can judge whether the base 1 is level or not by observing the leveling bubbles 13.

Be equipped with a plurality of fixed positions along the 2 slip directions of sliding seat at the upper surface of sliding seat 2, fixed position department has welded upper end open-ended test piece standing groove 21, and the side perpendicular to sliding seat 2's of test piece standing groove 21 upper surface when the standard stick is put into test piece standing groove 21, adjusts base 1 for the level, and the standard stick is vertical state promptly. Two baffles 14 are arranged at two ends of the base 1 to prevent the sliding seat 2 from sliding off the base 1, so that the test piece and the standard rod on the sliding seat 2 are prevented from being damaged. The support 3 comprises two upright columns 31 welded at the middle position of the upper surface of the base 1, the sliding seat 2 can slide between the two upright columns 31, and a cross beam 32 is welded at the upper ends of the two upright columns 31.

Referring to fig. 2, a dial 4 is provided on a beam 32, a dial 41 is fixed at a middle position of the beam 32, and a pogo pin 42 is provided on the dial 41. The beam 32 is also provided with a knob 33, the knob 33 is provided with a gear ring, the telescopic probe 42 is provided with a rack, the knob 33 is meshed with the telescopic probe 42, and the telescopic probe 42 can be lifted and lowered by adjusting the knob 33, so that the number displayed on the dial 41 can be changed.

The implementation principle of the embodiment is as follows: when an operator wants to measure the shrinkage expansion coefficient of the test piece, the operator firstly adjusts the knob 33 to increase the height of the telescopic probe 42; then, the standard rod is placed in the test piece placing groove 21 closest to the indicating table 4, and the test piece is placed in other test piece placing grooves 21; then the height of the leveling bolt 12 is adjusted to enable the base 1 to be in a horizontal state, and the test piece placing groove 21 is a non-top cubic box, so that when the base is in the horizontal state, a standard rod placed in the test piece placing groove 21 is in a vertical state; pushing the sliding seat 2 to place the standard rod below the telescopic probe 42, adjusting the knob 33 to lower the telescopic probe 42 to the upper surface of the standard rod, and recording the number of the dial 41; after the measurement is finished, the knob 33 is adjusted, the telescopic probe 42 is lifted, the sliding seat is pushed, and the steps are repeated to measure the piece to be tested.

An operator can place a standard rod and a plurality of test pieces on the test piece placing groove 21 on the sliding seat 2 for simultaneous measurement, place the standard rod on the test piece placing groove 21 close to the indicating table 4, place the test pieces to be measured on the other test piece placing grooves 21, firstly push the standard rod to the lower part of the indicating table 4 for measurement and calibration, and then push the sliding seat 2 to sequentially push the test pieces to be measured to the lower part of the indicating table 4 for measurement, so that the working efficiency of the operator is greatly improved;

leveling bolts 12 are arranged at four corners of the base 1, so that the stability of the base 1 is ensured, and an operator can adjust the height and levelness of the base 1 through the leveling bolts 12. Set up two stands 31 on base 1 and strengthened the stability of crossbeam 32, thereby prevent to rock in measurement process crossbeam 32 and drive instruction list 4 and rock the influence measurement accuracy. Two baffles 14 are arranged at two ends of the base 1, so that an operator is prevented from sliding the sliding seat 2 out of the sliding rail 11 during measurement, and a test piece falls to damage the test piece.

The operator passes through knob 33 and adjusts the length of retractable probe 42, and when the operator measured test piece or standard stick, adjusting knob 33 dropped retractable probe 42 to the upper surface of test piece or standard stick, the record data, and the back is measured and is risen retractable probe 42, avoids retractable probe 42 and test piece or standard contact when sliding seat 2 slides, influences follow-up measurement accuracy.

In the embodiment, after the standard rod and the test piece are installed at one time, the measurement of the standard rod and the calibration are completed, the test piece can be directly measured, and the length of the telescopic probe 42 is only required to be adjusted during the test piece, so that the measurement error caused by repeated clamping and disassembly in the prior art is avoided.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A mortar contraction and expansion instrument is characterized in that: comprises a base (1), a sliding seat (2) which is connected with the base (1) in a sliding way, a bracket (3) which is fixedly connected with the base (1) and an indicating meter (4) which is connected with the bracket (3);

a plurality of fixing positions are arranged on the sliding seat (2) along the sliding direction of the sliding seat (2), and a test piece placing groove (21) with an opening at the upper end is arranged on each fixing position;

the indicating gauge (4) comprises a dial plate (41) on the fixed support (3) and a telescopic probe (42) in sliding connection with the dial plate (41), and the sliding seat (2) slides below the indicating gauge (4).

2. The mortar contraction and expansion instrument according to claim 1, wherein: the base (1) and the sliding seat (2) are arranged in parallel, the upper surface of the base (1) is provided with two equal-height parallel sliding rails (11), the lower surface of the sliding seat (2) is provided with two equal-depth parallel sliding grooves, and the base (1) and the sliding seat (2) are in matched sliding connection with the sliding grooves through the sliding rails (11).

3. The mortar contraction and expansion instrument according to claim 2, wherein: and two ends of the base (1) are provided with baffle plates (14).

4. The mortar contraction and expansion instrument according to claim 2, wherein: the length of the sliding seat (2) is less than half of the length of the base (1).

5. The mortar contraction and expansion instrument according to claim 2, wherein: four leveling bolts (12) are respectively arranged at four corners of the base (1).

6. The mortar contraction and expansion instrument according to claim 2, wherein: still be provided with leveling bubble (13) on base (1), leveling bubble (13) set up the outside at two slide rails (11).

7. The mortar contraction and expansion instrument according to claim 1, wherein: the support (3) comprises two upright columns (31) perpendicular to the upper surface of the base (1) and a cross beam (32) fixedly connected between the two upright columns (31), the two upright columns (31) are arranged in the middle of the upper surface of the base (1), and the sliding seat (2) slides between the two upright columns (31).

8. The mortar contraction and expansion instrument according to claim 5, wherein: the indicating gauge (4) is arranged in the middle of the cross beam (32), the cross beam (32) is further provided with a knob (33), a gear ring is arranged on the knob (33), a rack is arranged on the telescopic probe (42), and the knob (33) is meshed with the telescopic probe (42).