CN210036529U

CN210036529U - Thickness measuring tool for measuring thickness of cast-in-place concrete

Info

Publication number: CN210036529U
Application number: CN201920388366.9U
Authority: CN
Inventors: 马小军; 胡跃军; 蒋守高; 聂绍禄
Original assignee: Guangdong Longyue Construction Engineering Co Ltd
Current assignee: Guangdong Longyue Construction Engineering Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-02-07
Anticipated expiration: 2029-03-25

Abstract

The utility model relates to a thickness measurement instrument for measuring cast in situ concrete thickness, including inserted bar, slide cartridge and locking piece, the top of inserted bar is provided with the handle, and the pole body of inserted bar is provided with the gradiometer, and the bottom of inserted bar is provided with the horizontal plane, slide cartridge cover is put on the inserted bar, and slide cartridge can follow the inserted bar and slide from top to bottom, and slide cartridge lateral wall opens there is the lockhole, the locking piece stretch into the lockhole and with slide cartridge threaded connection, when locking piece and inserted bar offset, the locking piece will slide cartridge and locking piece locking. When the concrete work progress was in the plasticity stage, the user sat the thickness measuring instrument in the concrete surface, then pressed the handle, leaned on the bottom surface of concrete module until the bottom of inserted bar, because the inserted bar can be followed to the slide cartridge and slided from top to bottom, leaned on the concrete surface until the slide cartridge lower extreme, the user observed the gradiometer this moment, read the thickness that the concrete can be measured to the scale numerical value that slide cartridge upper end position corresponds, measuring speed is fast, the cost workman is few, it is convenient to measure, it is accurate.

Description

Thickness measuring tool for measuring thickness of cast-in-place concrete

Technical Field

The utility model relates to a measuring tool, in particular to thickness measuring tool for measuring cast in situ concrete thickness.

Background

The control standard of the existing construction quality acceptance standard on the formed and solidified concrete floor slab is as follows: +10mm, -5 mm. The thickness of the concrete floor exceeds the standard due to slight poor control, and the safety of the structure is affected. The control of the floor concrete thickness is always a difficult point of on-site concrete construction management, because the construction site is open-air operation, the detection condition of the concrete pouring site is severe, the detection in the concrete pouring process has strict timeliness, and if the detection is not carried out in time, the thickness deviation of the concrete after the concrete is solidified can not be adjusted even if the thickness deviation of the concrete is measured. Therefore, the simple and applicable measurement of the thickness of the cast-in-place concrete floor slab is a key management work for controlling the thickness of the concrete floor slab.

At present, the common concrete thickness detection method and the defects are as follows:

depending on the accuracy of the surface elevation of the bottom template, if the deviation of the surface elevation of the bottom template is large, the measured thickness data of the cast-in-place floor concrete is inaccurate;

(1) depending on the accuracy of measuring the elevation mark points on the steel bars, if the elevation deviation of the measured elevation mark points is large, the measured thickness data of the cast-in-place floor concrete is inaccurate.

(2) Based on tensioning and straightening of the thin wire, if the distance between two vertical steel bars is large and the wind power of a working surface of site construction is large, the middle part of the thin wire can drop or deform, the thin wire is not a horizontal straight line, and the measured error is large;

(3) the exposed vertical steel bars (such as a roof and a basement top surface) of the elevation mark points are not arranged above the surface of some cast-in-place floors, the welded vertical steel bars need to be temporarily added, and the temporary steel bars of the part need to be cut off after the concrete construction is finished. The construction process and cost are increased;

(4) the measurement is generally carried out by more than 2 persons in a matching way, two persons pull thin wires to be tied to two steel bars respectively, and then the measurement is carried out by 1-2 persons, so that more labor is spent;

(5) because the concrete surface elevation just below the thin line can only be measured, the concrete of the part which can not be pulled can not be measured by adopting the method;

(6) the laser level gauge is adopted to replace a fine line for measurement, but because the construction site environment for pouring concrete is poor, the laser level gauge is easy to pollute and damage due to collision, and the instrument needs to be specially protected in rainy and snowy weather, otherwise, the instrument cannot be measured, the instrument is erected on the plate surface of a cast-in-place floor slab, and because the template and the support at the lower part of the template are of temporary structures, the pump is adopted to pour concrete, so that the rock exists, and the measurement precision of a laser horizontal line is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure, measure easily, a thickness measurement instrument for measuring cast in situ concrete thickness that the accuracy is high.

The purpose of the utility model is realized like this:

the utility model provides a thickness measurement instrument for measuring cast in situ concrete thickness, includes inserted bar, slide cartridge and locking piece, the top of inserted bar is provided with the handle, and the pole body of inserted bar is provided with the gradiometer, and the bottom of inserted bar is provided with the horizontal plane, slide cartridge cover is put on the inserted bar, and slide cartridge can follow the inserted bar and slide from top to bottom, and slide cartridge lateral wall opens there is the lockhole, the locking piece stretch into the lockhole and with slide cartridge threaded connection, when the locking piece offsets with the inserted bar, the locking piece will slide cartridge and locking piece locking. When the concrete work progress was in the plasticity stage, the user sat the thickness measuring instrument in the concrete surface, then press the handle, support on the bottom surface at the concrete module until the bottom of inserted bar, because the slide cartridge can be followed the inserted bar and slided from top to bottom, support and lean on the concrete surface until the slide cartridge lower extreme, the user observes the gradiometer this moment, read the thickness that the scale numerical value that slide cartridge upper end position corresponds can measure the concrete, measuring speed is fast, it is few to spend the workman, it is convenient to measure, measured data is accurate, and can lock the thickness value through the locking piece between slide cartridge and the inserted bar, sit the thickness measuring instrument in the concrete surface this moment, can measure concrete thickness and predetermine whether thickness value unanimous, it is simple to measure.

The purpose of the utility model can also adopt the following technical measures to solve:

as a more specific scheme, the bottom of the sliding cylinder is provided with a circle of plane flanging. Through being provided with the flanging, make things convenient for the slide cartridge to support and lean on the concrete surface.

As a more specific scheme, a stop block is arranged at the bottom of the inserted link, and the lower end of the sliding cylinder abuts against the stop block. The sliding barrel is prevented from being separated from the inserted rod through the stop block, and the practicability of the thickness measuring tool is improved.

As a more specific scheme, the gradiometer is arranged on the outer wall of the inserted rod positioned at the upper end of the sliding cylinder.

More specifically, the position of the inserted rod which is 100mm higher than the bottom is provided with the graduator, and the range of the graduator is 100mm-300 mm.

More specifically, the slide cylinder is a stainless steel slide cylinder, and the height of the slide cylinder is 100 mm.

More specifically, the locking element is a bolt and a tightening handle that is secured to the head of the bolt.

The utility model has the advantages as follows:

as a more specific scheme, when the concrete construction process is in a plasticity stage, a user sits a thickness measuring tool on the surface of concrete, then presses a handle until the bottom end of an inserted bar is abutted against the bottom surface of a concrete module, because a sliding cylinder can slide up and down along the inserted bar until the lower end of the sliding cylinder is abutted against the surface of the concrete, the user observes a gradiometer at the moment, reads a scale numerical value corresponding to the upper end position of the sliding cylinder to measure the thickness of the concrete, the measuring speed is high, few workers are spent, the measuring is convenient, the measuring data is accurate, the thickness value can be locked between the sliding cylinder and the inserted bar through a locking piece, the thickness measuring tool is sat on the surface of the concrete, whether the thickness of the concrete is consistent with a preset thickness value can be measured, the measuring is simple, the measured data is fed back to a construction operator in real time, if deviation exists, the thickness of the concrete is ensured to meet the design requirement, and the safety of the structural floor slab is met.

Drawings

Figure 1 is the utility model discloses a thickness measurement instrument schematic diagram for measuring cast in situ concrete thickness.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is an enlarged view of a portion B of fig. 1.

Figure 4 is the utility model discloses a thickness measurement instrument for measuring cast in situ concrete thickness inserts the measurement schematic diagram in the cast in situ concrete.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

embodiment, as shown in fig. 1 to 4, a thickness measuring tool for measuring the thickness of cast-in-place concrete includes an insert rod 1, a slide cylinder 2, and a locking member 3.

The top of the inserted bar 1 is provided with a handle 11, the bottom of the inserted bar 1 is provided with a horizontal plane 12, a gradiometer 4 is arranged on the bar body of the inserted bar 1 which is 100mm higher than the horizontal plane, the range of the gradiometer 4 is 100mm-300mm, and a stop block 5 for preventing the sliding cylinder 2 from being separated is arranged at the bottom of the inserted bar 1.

The sliding cylinder 2 is a stainless steel sliding cylinder with the height of 100mm, the side wall of the sliding cylinder 2 is provided with an insertion hole 21, the sliding cylinder 2 is sleeved on the insertion rod 1, and the sliding cylinder 2 can slide up and down along the insertion rod 1.

The locking piece 3 comprises a bolt 31 and a screwing handle 32, the screwing handle 32 is fixed at the head of the bolt 31, and the locking piece 3 extends into the insertion hole 21 and is in threaded connection with the sliding barrel 2.

The working principle is as follows:

directly measuring the thickness of the cast-in-place concrete: when the user need measure cast in situ concrete thickness, the user places the thickness measuring instrument in the concrete surface, press handle 11, support the diapire that leans on at the concrete form until the horizontal plane 12 of inserted bar 1, because slide cartridge 2 can follow inserted bar 1 and slide from top to bottom, when inserted bar 1 inserts the concrete, the concrete promotes slide cartridge 2 and goes up, support at the concrete surface until inserted bar 1 lower extreme, the user observes gradiometer 4 this moment, read the scale numerical value that slide cartridge 2 upper end position corresponds, judge the thickness of concrete, it is simple to measure.

Checking the thickness of the cast-in-place concrete by using the fixed thickness value: the user slides the sliding barrel 2 upwards to adjust a proper thickness value, then rotates the screwing handle 32 to adjust the locking piece 3 until the locking piece 3 abuts against the inserted link 1, so that the sliding barrel 2 and the inserted link 1 are locked, and the thickness value can be locked.

Then, a user places the thickness measuring tool on the surface of the concrete, presses the handle 11 until the horizontal plane of the inserted bar 1 abuts against the bottom wall of the concrete formwork, and then observes the relation between the lower end of the sliding cylinder 2 and the surface of the cast-in-place concrete, if the surface of the cast-in-place concrete is lower than the lower end of the sliding cylinder 2, the thickness of the concrete is lower than a preset value, if the surface of the cast-in-place concrete is just in contact with the lower end of the sliding cylinder 2, the thickness of the concrete meets the preset value, and if the surface of the cast-in-place concrete is higher than the lower end of the sliding cylinder.

Claims

1. A thickness measurement instrument for measuring cast in situ concrete thickness which characterized in that: the device comprises an inserted bar, a sliding barrel and a locking piece, wherein a handle is arranged at the top of the inserted bar, a gradiometer is arranged on the rod body of the inserted bar, a horizontal plane is arranged at the bottom of the inserted bar, the sliding barrel is sleeved on the inserted bar and can slide up and down along the inserted bar, a lock hole is formed in the side wall of the sliding barrel, the locking piece extends into the lock hole and is in threaded connection with the sliding barrel, and when the locking piece abuts against the inserted bar, the locking piece locks the sliding barrel and the locking piece; a circle of plane outward flanging is arranged at the bottom of the sliding cylinder; the bottom of the inserted link is provided with a stop block, and the lower end of the sliding cylinder is abutted against the stop block; the outer wall of the inserted bar positioned at the upper end of the sliding cylinder is provided with the gradiometer.

2. A thickness measuring tool for measuring the thickness of cast in place concrete according to claim 1, wherein: the position of the inserted link 100mm higher than the bottom is provided with the gradiometer, and the range of the gradiometer is 100mm-300 mm.

3. A thickness measuring tool for measuring the thickness of cast in place concrete according to claim 1, wherein: the slide cylinder is a stainless steel slide cylinder, and the height of the slide cylinder is 100 mm.

4. A thickness measuring tool for measuring the thickness of cast in place concrete according to claim 1, wherein: the locking piece is a bolt and a screwing handle, and the screwing handle is fixed at the head of the bolt.