CN213749459U

CN213749459U - Concrete strength detects uses portable resiliometer

Info

Publication number: CN213749459U
Application number: CN202022675437.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Anhui Yuanzheng Engineering Testing Technology Co ltd
Current assignee: Anhui Yuanzheng Engineering Testing Technology Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-20
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to the technical field of concrete strength detection resiliometers, in particular to a portable resiliometer for concrete strength detection, which comprises two tracks, two tracks arranged in a mirror image manner, a base fixedly arranged at the bottom of the tracks, a top plate, a support plate arranged between the two tracks, a slider fixedly arranged at two sides of the support plate, a distance measuring instrument fixedly arranged on the track at one side, an upper connecting plate connected with the center of the bottom of the top plate through a screw, an electric telescopic rod arranged between the upper connecting plate and the lower connecting plate, a first spring sleeved outside the electric telescopic rod, a heavy hammer limiting mechanism arranged on the tracks, a device arranged on the plane of a concrete structure, a weight hammer driven by the electric telescopic rod to move up the support plate and the bottom, the first spring contracts, the elastic force of the first spring drives the heavy hammer to impact on the concrete surface, therefore, the heavy hammer cannot deviate in the working process, and the measuring accuracy is effectively improved.

Description

Concrete strength detects uses portable resiliometer

Technical Field

The utility model relates to a concrete strength detects resiliometer technical field, especially relates to a concrete strength detects uses portable resiliometer.

Background

The concrete resiliometer is used for testing the compression strength of concrete, is the most extensive concrete compression strength nondestructive testing instrument for field test, and has the basic principle that a tension spring is used for driving a heavy hammer, the heavy hammer impacts an impact rod which is vertically contacted with the surface of the concrete with constant kinetic energy, so that the local concrete is deformed and absorbs a part of energy, and the other part of energy is converted into rebound kinetic energy of the heavy hammer, when the rebound kinetic energy is completely converted into potential energy, the weight rebounds to the maximum distance, the distance measuring instrument displays the maximum rebound distance of the weight as a rebound value, because the axis of the resiliometer is always vertical to the surface of the concrete during the use process of the resiliometer, in the process of applying pressure to the resiliometer, the axis of the resiliometer is prone to shifting, measuring accuracy is reduced, and therefore the portable resiliometer for detecting the concrete strength is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the skew takes place for the axis that has the resiliometer among the prior art, and the portable resiliometer is used in concrete strength detection who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a portable resiliometer for concrete strength detection is designed, comprising two tracks, two tracks arranged in a mirror image manner, a base fixedly arranged at the bottoms of the tracks, a top plate, a carrier plate arranged between the two tracks, heavy hammers fixedly arranged at the bottom of the carrier plate, distance measuring instruments fixedly arranged on the tracks at one side for detecting the maximum rebound distance of the heavy hammers and displaying the maximum rebound distance, a lower connecting plate connected with the top of the carrier plate through screws, an upper connecting plate connected with the center of the bottom of the top plate through screws, an electric telescopic rod arranged between the upper connecting plate and the lower connecting plate, and an upper end of the electric telescopic rod fixedly connected with the bottom of the upper connecting plate, electric telescopic handle's output fixed connection is at connecting plate top down, the electric telescopic handle overcoat is equipped with first spring, both ends difference fixed connection is on upper junction plate and lower connecting plate about the first spring, all be equipped with stop gear on the track, both sides the stop gear mirror image sets up, stop gear includes four connecting strips, the track both sides difference fixed mounting has two connecting strips, two the interval sets up about the connecting strip, all there is the blend stop through the screw connection on the connecting strip, the blend stop can block the support plate rebound.

Preferably, the track is internally provided with an adding mechanism, the adding mechanism comprises a second spring, the second spring is located in the track, the second spring is arranged on the sliding block, the upper end of the second spring is fixedly connected with a block, the two ends of the bottom of the top plate are fixedly provided with inserting blocks, limiting holes are formed in the inserting blocks and the blocks, one side of each block is provided with a limiting pin, the limiting pin can penetrate through the block and is inserted into the limiting holes in the inserting blocks, and the limiting pins are in interference fit with the limiting holes.

Preferably, the base is made of a solid iron block.

Preferably, the surface of the heavy hammer is galvanized.

Preferably, the bottom of the base is provided with anti-skid grains.

The utility model provides a pair of concrete strength detects uses portable resiliometer, beneficial effect lies in: through setting up the track, a pedestal, the roof, the support plate, the slider, the weight, the distancer, the lower connecting plate, the upper junction plate, electric telescopic handle, first spring, place the device on concrete structure plane, it shifts up to start electric telescopic handle to drive the weight of support plate and bottom, first spring shrink, close electric telescopic handle, the elasticity of first spring drives the weight striking on the concrete face, the distancer shows the biggest rebound distance of weight with the rebound value, thereby the skew can not take place for the weight in the course of the work, effectively improve measuring accuracy.

Drawings

Fig. 1 is the utility model provides a concrete strength detects with portable resiliometer's structural schematic.

Fig. 2 is the utility model provides a concrete strength detects with portable resiliometer's cross-sectional view.

Fig. 3 is the utility model provides a concrete strength detects with portable resiliometer's front view.

Fig. 4 is the utility model provides a concrete strength detects with enlarged schematic diagram of a department in fig. 2 of portable resiliometer.

In the figure: the device comprises a track 1, a base 2, a top plate 3, a carrier plate 4, a sliding block 5, a heavy hammer 6, a distance measuring instrument 7, a lower connecting plate 8, an upper connecting plate 9, an electric telescopic rod 10, a first spring 11, a connecting strip 12, a barrier strip 13, a second spring 14, a block 15, an inserting block 16, a limiting hole 17 and a limiting pin 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1:

referring to fig. 1-4, a portable resiliometer for concrete strength testing, comprising two tracks 1, wherein the two tracks 1 are arranged in a mirror image manner, the bottoms of the tracks 1 are fixedly provided with a base 2, the portable resiliometer also comprises a top plate 3, the two ends of the bottom of the top plate 3 are respectively and fixedly connected with the tops of the two tracks 1, a carrier plate 4 is arranged between the two tracks 1, the two sides of the carrier plate 4 are respectively and fixedly provided with a slide block 5, the slide blocks 5 are respectively and slidably arranged in the tracks 1, the bottom of the carrier plate 4 is fixedly provided with a heavy hammer 6, the track 1 on one side is fixedly provided with a distance meter 7, the distance meter 7 is used for detecting and displaying the maximum rebound distance of the heavy hammer 6, the top of the carrier plate 4 is connected with a lower connecting plate 8 through screws, the center of the bottom of the top plate 3 is connected with an upper connecting plate 9 through screws, an electric telescopic rod 10 is arranged between the upper connecting plate 9 and the lower connecting plate 8, the upper end of the electric telescopic rod 10 is fixedly connected with the bottom of the upper connecting plate 9, output end fixed connection of electric telescopic handle 10 is at 8 tops of lower connecting plate, 10 overcoat of electric telescopic handle is equipped with first spring 11, both ends difference fixed connection is on upper junction plate 9 and lower connecting plate 8 about first spring 11, all be equipped with stop gear on track 1, the stop gear mirror image setting of both sides, stop gear includes four connecting strip 12, track 1 both sides difference fixed mounting has two connecting strip 12, the interval sets up about two connecting strip 12, all there is blend stop 13 through the screw connection on connecting strip 12, blend stop 13 can block support plate 4 rebound.

The working principle is as follows: place the device on concrete structure plane, start electric telescopic handle 10 and drive weight 6 of support plate 4 and bottom and shift up, first spring 11 contracts, close electric telescopic handle 10, and the elasticity of first spring 11 drives the striking of weight 6 on the concrete face, and distancer 7 shows the biggest rebound distance of weight 6 with the rebound value to weight 6 can not take place the skew in the course of the work, effectively improves measuring accuracy. By arranging the limiting mechanism, the barrier strip 13 can be selectively installed, and the carrier plate 4 is blocked by the barrier strip 13 from moving upwards, so that the contraction degree of the first spring 11, namely the impact force of the heavy hammer 6, is controlled.

Example 2:

referring to fig. 1-4, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the base 2 is made of solid iron block, the surface of the heavy hammer 6 is galvanized, and the bottom of the base 2 is provided with anti-skid lines; an adding mechanism is arranged in the track 1 and comprises a second spring 14, the second spring 14 is positioned in the track 1, the second spring 14 is arranged on the sliding block 5, the upper end of the second spring 14 is fixedly connected with a block 15, the two ends of the bottom of the top plate 3 are both fixedly provided with inserting blocks 16, limiting holes 17 are formed in the inserting blocks 16 and the block 15, a limiting pin 18 is arranged on one side of the block 15, the limiting pin 18 can penetrate through the block 15 and is inserted into the limiting hole 17 in the inserting block 16, and the limiting pin 18 is in interference fit with the limiting hole 17; by arranging the additional mechanism, when the impact force provided by the first spring 11 does not meet the actual requirement, the insertion block 16 can be inserted into the block 15, and the limit pin 18 penetrates through the block 15 and is inserted into the limit hole 17 on the insertion block 16, so that the insertion block 16 and the block 15 are fixed, when the carrier plate 4 moves upwards, the sliding block 5 also moves upwards, and the sliding block 5 compresses the second spring 14, so that the impact force when the heavy hammer 6 falls is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The portable resiliometer for detecting the concrete strength comprises two tracks (1) and is characterized in that the two tracks (1) are arranged in a mirror mode, a base (2) is fixedly arranged at the bottom of each track (1), a top plate (3) is further arranged, two ends of the bottom of the top plate (3) are respectively and fixedly connected to the tops of the two tracks (1), a carrier plate (4) is arranged between the two tracks (1), sliders (5) are fixedly arranged on two sides of the carrier plate (4) respectively, the sliders (5) are respectively and slidably arranged in the tracks (1), a heavy hammer (6) is fixedly arranged at the bottom of the carrier plate (4), a range finder (7) is fixedly arranged on one side of the tracks (1), the range finder (7) is used for detecting the maximum rebound distance of the heavy hammer (6) and displaying the maximum rebound distance, and a lower connecting plate (8) is connected to the top of the carrier plate (4) through screws, the center of the bottom of the top plate (3) is connected with an upper connecting plate (9) through a screw, an electric telescopic rod (10) is arranged between the upper connecting plate (9) and a lower connecting plate (8), the upper end of the electric telescopic rod (10) is fixedly connected to the bottom of the upper connecting plate (9), the output end of the electric telescopic rod (10) is fixedly connected to the top of the lower connecting plate (8), a first spring (11) is sleeved outside the electric telescopic rod (10), the upper end and the lower end of the first spring (11) are respectively fixedly connected to the upper connecting plate (9) and the lower connecting plate (8), a limiting mechanism is arranged on the track (1), the limiting mechanisms on two sides are arranged in a mirror image mode and comprise four connecting strips (12), two connecting strips (12) are respectively and fixedly mounted on two sides of the track (1), and the two connecting strips (12) are arranged at intervals from top to bottom, the connecting strip (12) is connected with a blocking strip (13) through a screw, and the blocking strip (13) can block the carrier plate (4) from moving upwards.

2. The portable resiliometer for detecting concrete strength according to claim 1, wherein an adding mechanism is arranged in each track (1), the adding mechanism comprises a second spring (14), the second spring (14) is located in each track (1), the second spring (14) is arranged on each sliding block (5), a block (15) is fixedly connected to the upper end of each second spring (14), insertion blocks (16) are fixedly mounted at two ends of the bottom of the top plate (3), limiting holes (17) are formed in each insertion block (16) and each block (15), a limiting pin (18) is arranged on one side of each block (15), each limiting pin (18) can penetrate through each block (15) and be inserted into each limiting hole (17) in each insertion block (16), and each limiting pin (18) is in interference fit with each limiting hole (17).

3. The portable rebound apparatus for testing concrete strength according to claim 1, wherein the base (2) is made of a solid iron block.

4. The portable rebound apparatus for testing concrete strength according to claim 1, wherein the weight (6) is galvanized on the surface.

5. The portable rebound apparatus for testing concrete strength according to claim 1, wherein the base (2) is provided with anti-slip lines at the bottom.