CN212483591U

CN212483591U - Concrete shrinkage test device

Info

Publication number: CN212483591U
Application number: CN202021316569.6U
Authority: CN
Inventors: 于立梅; 俞小飞; 张迪; 吕清
Original assignee: Taicang Jincheng Concrete Co ltd
Current assignee: Taicang Jincheng Concrete Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-02-05
Anticipated expiration: 2030-07-07

Abstract

The utility model relates to a concrete shrinkage test device, which comprises a base, wherein a first backup plate is arranged on the base along the length direction of the base, and a mounting plate parallel to the first backup plate is arranged at one end of the base far away from the first backup plate; the mounting plate is provided with a plurality of first through holes in a penetrating manner in the width direction, and each first through hole is connected with a guide rod in a sliding manner; one end of each guide rod, which is positioned between the first backup plate and the mounting plate, is connected with a second backup plate, and the other ends of the plurality of guide rods are connected with a pull rod; a spring is sleeved on the outer side wall of the guide rod between the second backup plate and the mounting plate, and two ends of the spring are fixedly connected with the second backup plate and the mounting plate respectively; an installation frame is arranged at one end of the base in the length direction of the first backup plate, and a dial indicator is fixed on the installation frame; the base is provided with a positioning plate for positioning the concrete piece to be tested at one end of the first backup plate far away from the mounting frame. The utility model discloses have and carry out shrink measuring effect to the concrete piece that awaits measuring fast.

Description

Concrete shrinkage test device

Technical Field

The utility model belongs to the technical field of the technique of recycled concrete production and specifically relates to a concrete shrinkage test device is related to.

Background

The regenerated concrete is prepared by crushing, cleaning and grading waste concrete blocks, adding water, cement, sand and stone materials and the like, and mixing the waste concrete blocks and the sand and stone materials with a grading system according to a certain proportion to form new concrete. Along with the requirement of green development of the building industry, the demand of recycled concrete in China is more and more large. When the concrete is changed in the natural environment, expansion and contraction phenomena can occur, and the expansion and contraction of the concrete can cause cracking of a wall body, so that the test of the expansion and contraction of the concrete is very important.

At present, a digital display dial indicator for measuring a concrete shrinkage value is arranged on a flat measuring base through a dial indicator frame, a piece to be measured is placed on the measuring base, then one end face of the piece to be measured abuts against a measuring contact of the dial indicator, and the dial indicator is used for displaying a small concrete shrinkage or expansion. At present, the device for measuring the concrete shrinkage test generally needs to place a concrete test block to be tested on the device by manpower, however, when the shrinkage value of the same site of different pieces to be tested is detected, the manual placement is sometimes inaccurate, so that the measurement site is deviated, and the error of the calculation result is increased. In order to place the to-be-measured piece more accurately, the worker often needs to adjust the to-be-measured piece for multiple times when placing the to-be-measured piece, so that a large amount of time is wasted, and the working efficiency is reduced. Therefore, a novel concrete shrinkage test device needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can carry out measuring test device to the shrink of concrete high-efficiently to the not enough of prior art existence.

The above technical purpose of the present invention can be achieved by the following technical solutions: a concrete shrinkage test device comprises a base, wherein a first backup plate is arranged on the base along the length direction of the base, and an installation plate parallel to the first backup plate is arranged at one end of the base, which is far away from the first backup plate; the mounting plate is provided with a plurality of first through holes in a penetrating manner in the width direction, and each first through hole is connected with a guide rod in a sliding manner; one end of each guide rod, which is positioned between the first backup plate and the mounting plate, is connected with a second backup plate, and the other ends of the plurality of guide rods are connected with a pull rod; a spring is sleeved on the outer side wall of the guide rod, which is positioned between the second backup plate and the mounting plate, and two ends of the spring are fixedly connected with the second backup plate and the mounting plate respectively; an installation frame is arranged at one end of the base in the length direction of the first backup plate, and a dial indicator is fixed on the installation frame; the base is provided with a positioning plate used for positioning a concrete piece to be tested at one end of the first backup plate far away from the mounting frame.

Through adopting above-mentioned technical scheme, the staff pulls the pull rod, then places the concrete piece that awaits measuring between first backup plate and the second backup plate. Then the staff loosens the pull rod, and under the effect of spring force, the second backup plate promotes the concrete piece that awaits measuring and removes to first backup plate direction, and the final concrete piece that awaits measuring all laminates with first backup plate and second backup plate to this realizes the quick location to the concrete. Compared with the traditional mode, the method and the device can be used for rapidly accurately positioning different pieces to be detected when detecting the same site of different pieces to be detected, and improve the working efficiency.

The present invention may be further configured in a preferred embodiment as: a plurality of rolling parts which are convenient for the concrete piece to be tested to slide on the base are arranged between the first backup plate and the mounting plate on the base; the rolling part comprises a plurality of supporting blocks fixed on the base, a plurality of first ball grooves are formed in the supporting blocks, and first balls are arranged in the first ball grooves.

Through adopting above-mentioned technical scheme, will await measuring on placing the supporting shoe, be provided with the ball on the supporting shoe, can be convenient for like this and await measuring the piece and remove. The staff only need place the concrete piece that awaits measuring roughly on the supporting shoe, then loosens the pull rod, and the concrete piece that awaits measuring can be fixed a position automatically, has improved work efficiency.

The present invention may be further configured in a preferred embodiment as: and two ends of the supporting block in the length direction are fixed on the base through bolts.

Through adopting above-mentioned technical scheme, the supporting shoe passes through bolted connection and on the base, like this when the ball card is dead, can change the supporting shoe.

The present invention may be further configured in a preferred embodiment as: a plurality of second ball grooves are formed in one end face, far away from the guide rod, of the second backup plate, and second balls are arranged in the second ball grooves; and a plurality of third ball grooves are formed in one end face, close to the second backup plate, of the first backup plate, and third balls are arranged in the third ball grooves.

Through adopting above-mentioned technical scheme, the concrete piece that awaits measuring is by first backup plate and the centre gripping of second backup plate, through set up second ball and third ball on first backup plate and second backup plate respectively, can reduce the influence of frictional force between first backup plate and second backup plate and the concrete piece that awaits measuring to the contractility of concrete piece that awaits measuring like this, has improved measuring precision.

The present invention may be further configured in a preferred embodiment as: two sliding rails parallel to the length direction of the first backup plate are arranged at one end, close to the positioning plate, of the base, sliding blocks are connected onto the sliding rails in a sliding mode, and the bottom end of the positioning plate is fixedly connected with the sliding blocks; an adjusting plate is further fixed on one side, away from the first backup plate, of the positioning plate on the base, and a first threaded hole is formed in the adjusting plate in a penetrating mode; and a first adjusting screw rod is connected with the first threaded hole in a threaded manner, and one end, close to the positioning plate, of the first adjusting screw rod is rotatably connected with the positioning plate through a bearing.

Through adopting above-mentioned technical scheme, the staff awaits measuring the concrete and roughly places between first backup plate and the mounting panel, and wage personnel rotate first adjusting screw and make the locating plate remove along the slide rail, and the locating plate promotes the piece that awaits measuring and removes to the amesdial direction for the surface of the piece that awaits measuring and the probe butt of amesdial can improve work efficiency like this.

The present invention may be further configured in a preferred embodiment as: a second sliding groove is formed in one end, close to the mounting frame, of the base, and a second adjusting screw is rotatably connected to the second sliding groove through a bearing; the mounting rack comprises a first support, and the bottom end of the first support is slidably connected in the second sliding groove; the bottom end of the first support is also provided with a second threaded hole in a penetrating manner, and the second adjusting screw is in threaded connection with the second threaded hole; the mounting frame further comprises a second bracket, two ends of the second bracket are connected with the first bracket in a sliding mode, and a dial indicator is fixedly mounted on the second bracket; the first bracket is also provided with an adjusting beam above the second bracket, and the adjusting beam is provided with a third threaded hole in a through manner; and a third adjusting screw rod is connected with the third threaded hole in a threaded manner, and the bottom end of the third adjusting screw rod is rotatably connected with the top end of the second support through a bearing.

By adopting the technical scheme, when different point positions need to be measured, a worker can rotate the second adjusting screw rod to enable the first support to horizontally move along the second sliding groove; and rotating the third adjusting screw rod to enable the second bracket to vertically move, so that the position of the dial indicator is adjusted.

The present invention may be further configured in a preferred embodiment as: and scale marks are arranged on one side of the second sliding groove and the first support on the base.

By adopting the technical scheme, the position of the dial indicator can be accurately adjusted.

The present invention may be further configured in a preferred embodiment as: and a linear bearing is arranged in the first through hole.

Through adopting above-mentioned technical scheme, can be convenient for the guide arm like this and slide in first through-hole to realize the quick location to the piece that awaits measuring.

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

1. through the arrangement of the first backup plate, the mounting plate, the guide rod, the second backup plate, the spring and the pull rod, the effect of quickly positioning the to-be-detected piece can be achieved;

2. through the arrangement of the rolling piece, the effect of facilitating the sliding of the piece to be tested on the base can be achieved;

3. the second ball and the third ball are arranged, so that the effect of reducing the influence of friction on the contractibility of the concrete part to be tested can be achieved;

4. through the arrangement of the positioning plate, the adjusting plate and the first adjusting screw rod, the effect of quickly positioning the piece to be detected can be achieved;

5. through the setting of second spout, second adjusting screw, first support, second support, regulation roof beam and third adjusting screw, can play the effect of adjusting the position of treating the table of measurationing.

Drawings

FIG. 1 is a schematic view of the overall structure of the concrete shrinkage test apparatus;

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

In the figure, 1, a base; 2. a first backup plate; 3. mounting a plate; 4. a guide bar; 5. a second backup plate; 6. a pull rod; 7. a rolling member; 9. a third ball bearing; 10. an adjusting plate; 11. a first adjusting screw; 12. positioning a plate; 13. a second adjusting screw; 14. a second chute; 15. a mounting frame; 151. a first bracket; 152. a second bracket; 16. a third adjusting screw; 17. adjusting the beam; 18. scale lines; 19. and (5) a dial indicator.

Detailed Description

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

Referring to fig. 1 and 2, for the utility model discloses a concrete shrinkage test device, including base 1. Be provided with first backup plate 2 along its length direction on the base 1, the one end of keeping away from first backup plate 2 on the base 1 is provided with mounting panel 3 parallel with first backup plate 2. The mounting plate 3 has a plurality of first through holes in the width direction, and a linear bearing is arranged in each first through hole. Each first through hole is also penetrated with a guide rod 4, and the guide rod 4 is connected with the first through hole in a sliding manner through a linear bearing. One end of each guide rod 4 between the first backup plate 2 and the mounting plate 3 is connected with a second backup plate 5, and the other end of each guide rod 4 is connected with a pull rod 6. The outer side wall of the guide rod 4 between the second backup plate 5 and the mounting plate 3 is sleeved with a spring, and two ends of the spring are fixedly connected with the second backup plate 5 and the mounting plate 3 respectively. A mounting frame 15 is arranged at one end of the base 1 in the length direction of the first backup plate 2, and a dial indicator 19 is fixed on the mounting frame 15. A positioning plate 12 for positioning the concrete piece to be tested is further arranged at one end, far away from the mounting frame 15, of the first backup plate 2 on the base 1. The staff pulls the pull rod 6 and then places the concrete piece to be tested between the first backup plate 2 and the second backup plate 5. Then loosen pull rod 6, under the effect of spring force, second backup plate 5 promotes the concrete piece that awaits measuring and removes to 2 directions of first backup plate, and the final concrete piece that awaits measuring all laminates with first backup plate 2 and second backup plate 5 to this realizes the quick location to the concrete. Compared with the traditional mode, the method and the device can be used for rapidly accurately positioning different pieces to be detected when detecting the same site of different pieces to be detected, and improve the working efficiency.

Referring to fig. 1 and 2, a plurality of rolling members 7 facilitating the sliding of the concrete member to be tested on the base 1 are further arranged on the base 1 between the first backup plate 2 and the mounting plate 3. The rolling part 7 comprises a plurality of supporting blocks, and two ends of each supporting block in the length direction are fixed on the base 1 through bolts. A plurality of first ball grooves are formed in the supporting block, and first balls are arranged in the first ball grooves. On the supporting shoe was placed to the piece that awaits measuring, the piece that awaits measuring of first ball can be convenient for slides, and the piece that awaits measuring of being convenient for advances line location fast. A plurality of second ball grooves are arranged on one end face, far away from the guide rod 4, of the second backup plate 5, and second balls are arranged in the second ball grooves. A plurality of third ball 9 grooves are arranged on one end surface of the first backup plate 2 close to the second backup plate 5, and third balls 9 are arranged in the third ball 9 grooves. The concrete piece that awaits measuring is by the centre gripping of first backup plate 2 and second backup plate 5, through setting up second ball and third ball 9, can reduce the influence of frictional force between first backup plate 2 and second backup plate 5 and the concrete piece that awaits measuring to the piece contractility that awaits measuring of concrete like this, has improved measuring precision.

Referring to fig. 1 and 2, two slide rails parallel to the length direction of the first backup plate 2 are arranged at one end of the base 1 close to the positioning plate 12, a slide block is connected to the slide rails in a sliding manner, and the bottom end of the positioning plate 12 is fixedly connected with the slide block. An adjusting plate 10 is further fixed on one side, far away from the first backup plate 2, of the positioning plate 12 on the base 1, and a first threaded hole is formed in the adjusting plate 10 in a penetrating mode. The first threaded hole is connected with a first adjusting screw 11 in a threaded manner, and one end, close to the positioning plate 12, of the first adjusting screw 11 is rotatably connected with the positioning plate 12 through a bearing. The staff roughly places the concrete piece that awaits measuring between first backup plate 2 and mounting panel 3, and the wage personnel rotate first adjusting screw 11 and make locating plate 12 remove along the slide rail. The positioning plate 12 pushes the piece to be measured to move towards the direction of the dial indicator 19, so that the surface of the piece to be measured is abutted to the probe of the dial indicator 19, and the working efficiency can be improved.

Referring to fig. 1 and 2, a second sliding groove 14 is formed in one end of the base 1, which is close to the mounting frame 15, and a second adjusting screw 13 is rotatably connected to the second sliding groove 14 through a bearing. The mounting frame 15 includes a first bracket 151, and a bottom end of the first bracket 151 is slidably coupled in the second sliding groove 14. The bottom end of the first support 151 is further provided with a second threaded hole in a penetrating manner, and the second adjusting screw 13 is in threaded connection with the second threaded hole. The mounting frame 15 further includes a second bracket 152, two ends of the second bracket 152 are slidably connected with the first bracket 151, and the dial indicator 19 is fixedly mounted on the second bracket 152. The first bracket 151 is further provided with an adjusting beam 17 above the second bracket 152, and a third threaded hole is formed in the adjusting beam 17 in a penetrating manner. The third threaded hole is connected with a third adjusting screw 16 in a threaded manner, and the bottom end of the third adjusting screw 16 is rotatably connected with the top end of the second bracket 152 through a bearing. When different point positions need to be measured, a worker can rotate the second adjusting screw 13 to enable the first bracket 151 to horizontally move along the second sliding chute 14; the third adjustment screw 16 is rotated to vertically move the second bracket 152, so as to adjust the position of the dial indicator 19, so as to measure different point positions. The base 1 is provided with scale marks 18 on one side of the second sliding groove 14, and the first bracket 151 is also provided with scale marks 18. This facilitates accurate adjustment of the position of the dial gauge 19 by the operator.

The implementation principle of the embodiment is as follows: the operator turns the second adjustment screw 13 and the third adjustment screw 16 to preset the position of the dial indicator 19. Then the staff pulls the pull rod 6 to place the concrete piece to be tested on the supporting block between the first backup plate 2 and the second backup plate 5. The staff loosens pull rod 6, and under the effect of spring force, second backup plate 5 promotes the concrete piece that awaits measuring and removes to 2 directions of first backup plate, and the final concrete piece that awaits measuring all laminates with first backup plate 2 and second backup plate 5. Then the worker rotates the first adjusting screw 11, so that the positioning plate 12 pushes the piece to be measured to move towards the direction of the dial indicator 19, and the surface of the piece to be measured is abutted to the probe of the dial indicator 19. Compared with the traditional mode, the method and the device can quickly position the piece to be detected when the same position point of different pieces to be detected is measured, so that the working efficiency is improved; meanwhile, the position of the dial indicator 19 can be adjusted to measure different positions of the piece to be measured.

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. The utility model provides a concrete shrinkage test device, includes base (1), its characterized in that: a first backup plate (2) is arranged on the base (1) along the length direction of the base, and a mounting plate (3) parallel to the first backup plate (2) is arranged at one end of the base (1) far away from the first backup plate (2); the mounting plate (3) is provided with a plurality of first through holes in a penetrating manner in the width direction, and each first through hole is connected with a guide rod (4) in a sliding manner; one end of each guide rod (4) positioned between the first backup plate (2) and the mounting plate (3) is connected with a second backup plate (5), and the other ends of the guide rods (4) are connected with a pull rod (6); a spring is sleeved on the outer side wall of the guide rod (4) between the second backup plate (5) and the mounting plate (3), and two ends of the spring are fixedly connected with the second backup plate (5) and the mounting plate (3) respectively; a mounting frame (15) is arranged at one end of the base (1) in the length direction of the first backup plate (2), and a dial indicator (19) is fixed on the mounting frame (15); the base (1) is provided with a positioning plate (12) used for positioning a concrete piece to be tested at one end of the first backup plate (2) far away from the mounting frame (15).

2. A concrete shrinkage test apparatus according to claim 1, wherein: a plurality of rolling pieces (7) which are convenient for the concrete piece to be tested to slide on the base (1) are arranged between the first backup plate (2) and the mounting plate (3) on the base (1); the rolling part (7) comprises a plurality of supporting blocks fixed on the base (1), a plurality of first ball grooves are formed in the supporting blocks, and first balls are arranged in the first ball grooves.

3. A concrete shrinkage test apparatus according to claim 2, wherein: the two ends of the supporting block in the length direction are fixed on the base (1) through bolts.

4. A concrete shrinkage test apparatus according to claim 2, wherein: a plurality of second ball grooves are formed in one end face, far away from the guide rod (4), of the second backup plate (5), and second balls are arranged in the second ball grooves; a plurality of third ball (9) grooves are formed in one end face, close to the second backup plate (5), of the first backup plate (2), and third balls (9) are arranged in the third ball (9) grooves.

5. A concrete shrinkage test device according to claim 4, wherein: two sliding rails parallel to the length direction of the first backup plate (2) are arranged at one end, close to the positioning plate (12), of the base (1), sliding blocks are connected onto the sliding rails in a sliding mode, and the bottom end of the positioning plate (12) is fixedly connected with the sliding blocks; an adjusting plate (10) is further fixed on one side, away from the first backup plate (2), of the positioning plate (12) on the base (1), and a first threaded hole is formed in the adjusting plate (10) in a penetrating mode; and a first adjusting screw rod (11) is connected to the first threaded hole in a threaded manner, and one end, close to the positioning plate (12), of the first adjusting screw rod (11) is rotatably connected with the positioning plate (12) through a bearing.

6. A concrete shrinkage test apparatus according to claim 1, wherein: a second sliding groove (14) is formed in one end, close to the mounting frame (15), of the base (1), and a second adjusting screw (13) is rotatably connected in the second sliding groove (14) through a bearing; the mounting frame (15) comprises a first bracket (151), and the bottom end of the first bracket (151) is slidably connected in the second sliding chute (14); a second threaded hole is further formed in the bottom end of the first support (151) in a penetrating mode, and the second adjusting screw (13) is connected into the second threaded hole in a threaded mode; the mounting rack (15) further comprises a second bracket (152), two ends of the second bracket (152) are connected with the first bracket (151) in a sliding mode, and a dial indicator (19) is fixedly mounted on the second bracket (152); the first bracket (151) is also provided with an adjusting beam (17) above the second bracket (152), and a third threaded hole is formed in the adjusting beam (17) in a penetrating manner; and a third adjusting screw (16) is connected to the third threaded hole in a threaded manner, and the bottom end of the third adjusting screw (16) is rotatably connected with the top end of the second bracket (152) through a bearing.

7. A concrete shrinkage test device according to claim 6, wherein: and scale marks (18) are arranged on one side of the second sliding groove (14) and the first support (151) on the base (1).

8. A concrete shrinkage test apparatus according to claim 1, wherein: and a linear bearing is arranged in the first through hole.