CN218995032U

CN218995032U - Resiliometer for concrete hardness detection

Info

Publication number: CN218995032U
Application number: CN202223346932.0U
Authority: CN
Inventors: 房宏泽; 程坤; 黄庆亮; 张思哲; 刘彧; 沈平邦
Original assignee: Tianjin Construction Engineering Quality Inspection Center Co ltd
Current assignee: Tianjin Construction Engineering Quality Inspection Center Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-09
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a rebound device for detecting the hardness of concrete, which comprises a shell and an auxiliary lifting device, wherein a roller is arranged at the bottom of the shell, a hook is arranged on the outer wall of the shell, a reflecting strip is arranged on the outer wall of the shell, a balancing weight is arranged in the shell, a fixing rod is arranged on the inner wall of the shell, a positioning block is arranged at one end of the fixing rod, the fixing rod is connected with an impact column through the positioning block, a rack is arranged on the outer wall of the top of the impact column, a compression bar is arranged on the outer wall of the bottom of the impact column, a positioning groove is formed in the middle outer wall of the impact column, and a return spring is arranged on the outer wall of the impact column. This resiliometer for concrete hardness detects passes through the couple, and the couple can be connected with the trailer hook of vehicle, when needs carry out continuous detection to the road surface, and the vehicle can drive the resiliometer through the couple and remove, makes things convenient for the resiliometer to detect concrete road surface, improves the efficiency that detects.

Description

Resiliometer for concrete hardness detection

Technical Field

The utility model relates to the technical field of concrete detection, in particular to a rebound instrument for concrete hardness detection.

Background

The concrete detection is divided into three aspects of internal quality (compressive strength, bending resistance, freezing resistance, impermeability, chloride ion permeability resistance, thickness of a reinforcing steel bar protection layer and the like), surface quality and external dimension quality, wherein in the process of detecting the compressive strength of the concrete, a rebound instrument is needed to be used for monitoring the concrete, the basic principle of the rebound instrument is that a heavy hammer is driven by a spring, the heavy hammer impacts an impact rod vertically contacted with the surface of the concrete with constant kinetic energy, so that partial concrete is deformed and absorbs part of energy, 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 heavy hammer rebound reaches the maximum distance, and the instrument displays the maximum rebound distance of the heavy hammer on the basis of the nominal rebound value (the ratio of the maximum rebound distance to the initial length of the spring).

The resiliometer that tradition was used needs the manual work to hold and detect the compressive property of concrete, needs the measurement personnel to bow for a long time at the in-process that monitors concrete road surface, causes concrete detection to appear the error easily, and large-scale rebound appearance carries inconveniently simultaneously, therefore, the skilled person provides a resiliometer for concrete hardness detection to solve the problem that proposes among the above-mentioned background art.

Disclosure of Invention

The utility model aims to provide a rebound device for detecting the hardness of concrete, which aims to solve the problems that the rebound device provided in the background art needs to be manually held to detect the compression resistance of the concrete and the large rebound device is inconvenient to carry.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a resiliometer for concrete hardness detects, includes shell and auxiliary lifting device, the gyro wheel is installed to the bottom of shell, and the couple is installed to the outer wall of shell to the reflection of light strip is installed to the outer wall of shell, the internally mounted of shell has the balancing weight, and the dead lever is installed to the inner wall of shell, the locating piece is installed to the one end of dead lever, and the dead lever passes through the locating piece and is connected with the impact post, the rack is installed to the outer wall at the top of impact post, and the depression bar is installed to the outer wall of the bottom of impact post to the constant head tank has been seted up to the outer wall in the centre of impact post, and reset spring is installed to the outer wall of impact post simultaneously, the internally mounted of shell has the guide bar, and the guide spring is installed to the outer wall of guide bar, the measuring apparatu is installed at the top of shell, and the rotor wheel is installed at one side of measuring apparatu, the spout has been seted up at the top of shell, auxiliary lifting device installs in the inside of spout, and the transmission shaft is installed at the outer wall of transmission shaft.

Preferably, the compression bars are distributed annularly about the vertical center line of the impact column, and the impact column and the guide bar form a lifting structure through the compression bars and the guide springs.

Preferably, the positioning grooves are distributed annularly about the vertical center line of the impact column, and the inner walls of the positioning grooves are attached to the outer walls of the positioning blocks.

Preferably, the fixed rod and the impact column form a reset structure through a reset spring, and the reset spring is made of stainless steel.

Preferably, the auxiliary lifting device comprises a sliding block, a limiting wheel, a limiting groove, a limiting rod and a fixed spring, wherein the sliding block is arranged in the sliding groove, the limiting wheel is arranged at the top of the sliding block, the limiting groove is formed in the outer ring of the limiting wheel, the limiting rod is arranged on the outer wall of the sliding block, and the fixed spring is arranged on the outer wall of the limiting rod.

Preferably, the limiting grooves are distributed annularly about the center point of the limiting wheel, and the longitudinal sections of the limiting grooves are triangular.

Preferably, the sliding block and the limiting wheel form a limiting structure through the limiting rod and the fixing spring, and the limiting rod and the sliding block form a reset structure through the fixing spring.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the rebound instrument for detecting the hardness of the concrete, the hook can be connected with the trailer hook of the vehicle, and when the road surface needs to be continuously detected, the vehicle can drive the rebound instrument to move through the hook, so that the rebound instrument is convenient to detect the concrete road surface, and the detection efficiency is improved;

2. this resiliometer for concrete hardness detects through supplementary elevating gear, rotatory handle makes the handle drive the gear rotation, the rack engagement of gear and impact post outer wall to drive impact post and ground laminating, then pull supplementary elevating gear backward, make the gear break away from the rack, make reset spring promote impact post downwardly moving, impact concrete highway, then the guide spring shrink earlier at the release, make impact post upwards move, calculate the elevating height of impact post, thereby detect concrete highway's intensity.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic view of the front cross-section structure of the present utility model;

FIG. 3 is a schematic view of the present utility model in a top-down configuration;

fig. 4 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present utility model.

In the figure: 1. a housing; 2. a roller; 3. a hook; 4. a reflective strip; 5. balancing weight; 6. an impact post; 7. a rack; 8. a compression bar; 9. a positioning groove; 10. a return spring; 11. a fixed rod; 12. a positioning block; 13. a guide rod; 14. a guide spring; 15. a rotating wheel; 16. a measuring instrument; 17. a chute; 18. an auxiliary lifting device; 1801. a slide block; 1802. a limiting wheel; 1803. a limit groove; 1804. a limit rod; 1805. a fixed spring; 19. a transmission shaft; 20. a gear.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the rebound tester for detecting the hardness of concrete comprises a shell 1, a roller 2, a hook 3, a reflecting strip 4, a balancing weight 5, an impact column 6, a rack 7, a compression bar 8, a positioning groove 9, a return spring 10, a fixed rod 11, a positioning block 12, a guide rod 13, a guide spring 14, a rotating wheel 15, a measuring instrument 16, a sliding chute 17, an auxiliary lifting device 18, a sliding block 1801, a limiting wheel 1802, a limiting groove 1803, a limiting rod 1804, a fixed spring 1805, a transmission shaft 19 and a gear 20, wherein the roller 2 is arranged at the bottom of the shell 1, the hook 3 is arranged on the outer wall of the shell 1, the reflecting strip 4 is arranged on the outer wall of the shell 1, the balancing weight 5 is arranged in the shell 1, the fixed rod 11 is arranged on the inner wall of the shell 1, the positioning block 12 is arranged at one end of the fixed rod 11, the fixed rod 11 is connected with the impact column 6 through the positioning block 12, the rack 8 is arranged on the outer wall of the top of the impact column 6, the middle outer wall of the impact column 6 is provided with the positioning groove 9, the reset spring 10 is arranged on the outer wall of the impact column 6, the inner wall of the shell 1 is internally provided with the guide rod 13, the guide rod 16 is arranged on the guide rod 13 is arranged on the inner wall of the guide rod 16, the guide rod 16 is arranged on the outer wall of the top of the guide rod 16 is arranged on the top of the guide rod, the auxiliary lifting device 18 is arranged on the top of the guide rod 16, the guide rod 16 is arranged on the outer wall of the guide rod 16, the guide rod 16 is arranged on the inner wall, the guide wall is arranged on the guide wall 16, the guide rail 16, the guide 16 and the guide 16 is the guide rail 16, the guide 16 and the guide rail 4;

the compression bar 8 is annularly distributed about the vertical center line of the impact column 6, the impact column 6 and the guide bar 13 form a lifting structure through the compression bar 8 and the guide spring 14, the positioning groove 9 is annularly distributed about the vertical center line of the impact column 6, the inner wall of the positioning groove 9 is attached to the outer wall of the positioning block 12, the fixed bar 11 and the impact column 6 form a reset structure through the reset spring 10, the reset spring 10 is made of stainless steel, and the compression bar 8 and the positioning bar can prevent the impact column 6 from shifting in the lifting process;

the auxiliary lifting device 18 comprises a sliding block 1801, a limiting wheel 1802, a limiting groove 1803, a limiting rod 1804 and a fixed spring 1805, wherein the sliding block 1801 is arranged in the sliding groove 17, the limiting wheel 1802 is arranged at the top of the sliding block 1801, the limiting groove 1803 is formed in the outer ring of the limiting wheel 1802, the limiting rod 1804 is arranged on the outer wall of the sliding block 1801, the fixed spring 1805 is arranged on the outer wall of the limiting rod 1804, the limiting groove 1803 is annularly distributed with respect to the central point of the limiting wheel 1802, the longitudinal section of the limiting groove 1803 is triangular, the sliding block 1801 forms a limiting structure with the limiting wheel 1802 through the limiting rod 1804 and the fixed spring 1805, the limiting rod 1804 and the sliding block 1801 form a reset structure through the fixed spring 1805, the sliding grip is rotated, the gear 20 is driven to rotate by the sliding grip, the gear 7 is meshed with the outer wall of the impact column 6, the impact column 6 is driven to be attached to the ground, then the auxiliary lifting device 18 is pulled backwards, the gear 20 is separated from the rack 7, the impact column 6 is pushed downwards by the sliding spring 10, the concrete highway is impacted, then the concrete highway is contracted, the guide spring 14 is contracted, the impact strength is calculated, the impact column 6 is moved to the height is calculated, and the concrete is lifted, and the strength of the highway is detected.

Working principle: when the intensity of a concrete highway is required to be detected, a vehicle can drive the rebound device to move through a hook 3, when the rebound device moves to a position required to be detected, an auxiliary lifting device 18 is pushed forward, then a gear 20 at the top of the auxiliary lifting device 18 is meshed with a rack 7 on the outer wall of an impact column 6, the gear 20 and the rack 7 are used for adjusting the position of the impact column 6 through a handle rotating gear 20, the impact column 6 extrudes a reset spring 10, the impact column 6 is attached to the concrete ground, in the rotating process of the gear 20, a limit wheel 1802 is driven to rotate through a transmission shaft 19, the limit wheel 1802 is attached to a limit rod 1804, the limit wheel 1802 can only rotate in one direction, and the impact column 6 is enabled to move;

then, after the position adjustment of the impact post 6 is completed, the auxiliary lifting device 18 is pulled backwards, so that the auxiliary lifting device 18 drives the gear 20 to separate from the rack 7, then the reset spring 10 resets to push the impact post 6 to move downwards to impact the concrete pavement, the positioning rod slides in the positioning groove 9 in the descending process of the impact post 6 to limit the offset position of the impact post 6, the guide spring 14 is extruded in the descending process of the impact post 6, then the guide spring 14 resets to enable the impact post 6 to move upwards, the impact post 6 drives the rotating wheel 15 to rotate in the ascending process of the impact post 6, the measuring instrument 16 measures the circumference of the rotating wheel 15, and accordingly the ascending height of the impact post 6 can be measured, and the strength of the concrete pavement can be measured through calculation.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concrete hardness detects uses resiliometer, includes shell (1) and supplementary elevating gear (18), its characterized in that: the utility model discloses a lifting device, including shell (1), locating piece (16) are installed to the bottom of shell (1), and gyro wheel (2), couple (3) are installed to the outer wall of shell (1), and reflector strip (4) are installed to the outer wall of shell (1), internally mounted of shell (1) has balancing weight (5), and dead lever (11) are installed to the inner wall of shell (1), locating piece (12) are installed to the one end of dead lever (11), and dead lever (11) are connected with impact post (6) through locating piece (12), rack (7) are installed to the outer wall at the top of impact post (6), and depression bar (8) are installed to the outer wall at the bottom of impact post (6), and constant head tank (9) are seted up to the outer wall in the centre of impact post (6), reset spring (10) are installed to the outer wall of impact post (6) simultaneously, internally mounted of shell (1) has guide bar (13), and guide spring (14) are installed to the outer wall of guide bar (13), measuring apparatu (16) are installed at the top of shell (1), and one side of measuring apparatu (16) installs rotating wheel (15), and one side of measuring apparatu (16), top (17) are equipped with auxiliary sliding groove (17) are installed at top (18), and a gear (20) is arranged on the outer wall of the transmission shaft (19).

2. The rebound apparatus for detecting the hardness of concrete according to claim 1, wherein: the compression bars (8) are distributed annularly about the vertical center line of the impact column (6), and the impact column (6) and the guide rods (13) form a lifting structure through the compression bars (8) and the guide springs (14).

3. The rebound apparatus for detecting the hardness of concrete according to claim 1, wherein: the positioning grooves (9) are distributed annularly about the vertical center line of the impact column (6), and the inner walls of the positioning grooves (9) are attached to the outer walls of the positioning blocks (12).

4. The rebound apparatus for detecting the hardness of concrete according to claim 1, wherein: the fixing rod (11) and the impact column (6) form a reset structure through a reset spring (10), and the reset spring (10) is made of stainless steel.

5. The rebound apparatus for detecting the hardness of concrete according to claim 1, wherein: auxiliary lifting device (18) are including slider (1801), spacing round (1802), spacing groove (1803), gag lever post (1804) and fixed spring (1805), and slider (1801) are installed in the inside of spout (17), spacing round (1802) are installed at the top of slider (1801), and spacing groove (1803) have been seted up to the outer lane of spacing round (1802), gag lever post (1804) are installed to the outer wall of slider (1801), and fixed spring (1805) are installed to the outer wall of gag lever post (1804).

6. The rebound apparatus for detecting concrete hardness as claimed in claim 5, wherein: the limiting grooves (1803) are distributed annularly about the center point of the limiting wheel (1802), and the longitudinal section of the limiting grooves (1803) is triangular.

7. The rebound apparatus for detecting concrete hardness as claimed in claim 5, wherein: the sliding block (1801) and the limiting wheel (1802) form a limiting structure through a limiting rod (1804) and a fixed spring (1805), and the limiting rod (1804) and the sliding block (1801) form a reset structure through the fixed spring (1805).