CN212008093U

CN212008093U - Concrete bending resistance testing machine

Info

Publication number: CN212008093U
Application number: CN202020428270.3U
Authority: CN
Inventors: 周明宇
Original assignee: Shaanxi Fengsheng Deyuan Industrial Co ltd
Current assignee: Shaanxi Fengsheng Deyuan Industrial Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-24
Anticipated expiration: 2030-03-27

Abstract

The utility model relates to a concrete bending test machine, the on-line screen storage device comprises a base, stand and crossbeam, be equipped with down-pressure device on the crossbeam, the base top is equipped with a supporting bench, a supporting bench top is equipped with the bearing plate, bearing plate top both sides are equipped with the bearing relatively, the bearing is including setting up the pedestal at the bearing plate top, each pedestal top all is connected with the platform of placing that two upper surfaces are smooth cambered surface, it is parallel with the bearing plate minor face to place the platform, two of each bearing are placed between the platform parallel and are seted up flutedly, the recess internal rotation is equipped with two-way lead screw, two-way lead screw is parallel with placing the platform, two-way lead screw is worn out recess one end and is equipped with the rotation handle, two-way lead screw is last to be. The utility model discloses an anti testing machine that rolls over of concrete not only can test the prism test piece but also can test cylindric test piece, has increased the application scope of device, and convenience of customers uses.

Description

Concrete bending resistance testing machine

Technical Field

The utility model belongs to the technical field of the technique of anti testing machine of rolling over and specifically relates to an anti testing machine of rolling over of concrete is related to.

Background

In the fields of construction, municipal engineering and the like, concrete is the most common material, and the compression strength, the tensile strength and the deformation are important material properties of the concrete, particularly in the municipal engineering, the tensile strength of the concrete is an important index for concrete structure and quality control. In actual work, the direct stretching and loading modes of concrete are not easy to realize, and a tension test and a split-draw test are usually adopted as alternative methods for evaluating the tensile property of concrete.

The Chinese patent with the authorization number of CN207516177U discloses a concrete bending resistance testing machine, which comprises a testing machine base, a control instrument and a testing device fixedly arranged on the base and used for testing a concrete test block; the test device is including setting up two stands on the base, connect in the crossbeam of coexistence post upper end, set up in the last briquetting that the crossbeam lower extreme is used for pushing down the concrete test block, fixed mounting is the brace table on the base, fixed mounting is the bearing plate on the brace table, two of fixed placing on the bearing plate are used for placing the seat of pushing down of concrete test block, set up the groove that gathers materials that is used for gathering concrete residue on the bearing plate, the inslot activity that gathers materials is equipped with the propelling movement subassembly that is used for releasing the blown down tank with concrete residue, solve the difficult problem of clearing up of concrete residue of traditional concrete bending test machine after experimental.

The above prior art solutions have the following drawbacks: the concrete bending resistance testing machine of the scheme is only suitable for testing the concrete test block of the prism test piece, can not be used for the concrete test block of the cylindrical test piece, and is limited in application range.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anti testing machine that rolls over of concrete, this device not only can test the prism test piece but also can test cylindric test piece, has increased the application scope of device, and convenience of customers uses.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a concrete bending resistance testing machine comprises a base, two upright columns vertically arranged at the top of the base and a cross beam connected to the top ends of the two upright columns, wherein a pressing device is arranged on the cross beam, a supporting platform is arranged at the top of the base and is positioned under the pressing device, a pressure bearing plate is arranged at the top of the supporting platform, supporting seats are oppositely arranged on two sides of the top of the pressure bearing plate, each supporting seat comprises a seat body arranged at the top of the pressure bearing plate, two placing tables with smooth cambered surfaces are connected to the top of each seat body, the placing tables are parallel to the short edges of the pressure bearing plate, a groove is parallelly arranged between the two placing tables of each supporting seat, a bidirectional screw rod is rotatably arranged in the groove and is parallel to the placing tables, a hand wheel is arranged at one end of the bidirectional screw rod, and two sliding blocks are oppositely, the groove side wall is provided with a limiting groove, the sliding block is connected to the limiting groove in a sliding mode, and the top of the sliding block is provided with a limiting roller.

By adopting the technical scheme, when a user tests a concrete test piece, the test piece is placed on the two supporting seats, the hand wheel is rotated to control the bidirectional screw rod to rotate, so that the two sliding blocks are driven to mutually approach along the direction of the limiting groove, the test piece is clamped between the two limiting rollers, and the test piece is limited; the upper surface of the placing table is a smooth cambered surface, so that the friction between the supporting seat and the concrete test piece can be reduced, and a user can conveniently adjust the position of the concrete test piece.

The present invention may be further configured in a preferred embodiment as: each the slider top all is equipped with the mounting groove of cross-section for the type of falling T, spacing roller is close to slider one end fixedly connected with and is the installed part of the type of falling T, the installed part can slide in mounting groove department, the relative protrusion in tip both sides that spacing roller was kept away from to the installed part is provided with the installation double-screw bolt, two the shortest distance equals and is located with the width of mounting groove bottom between the installation double-screw bolt the slider both sides, be provided with the nut on the installation double-screw bolt.

Through adopting above-mentioned technical scheme, spacing roller passes through installed part detachable to be installed at the slider top, and the user loosens the nut and follows mounting groove opening one side with the installed part roll-off, convenience of customers 'more renew spacing roller, extension fixture's life.

The present invention may be further configured in a preferred embodiment as: the mounting groove is formed from the edge of the top of the sliding block to the center of the top of the sliding block.

Through adopting above-mentioned technical scheme, guarantee that spacing roller installs at slider top center through the position of mounting groove, improve the stability of spacing roller.

The present invention may be further configured in a preferred embodiment as: and a gasket is arranged between the nut and the sliding block.

Through adopting above-mentioned technical scheme, through the area of contact of gasket increase nut and slider side, make the fixed of installed part more stable.

The present invention may be further configured in a preferred embodiment as: the limiting roller comprises a central shaft connected to the top of the mounting part, and a roller surface is rotatably connected to the outer side of the central shaft.

Through adopting above-mentioned technical scheme, the center pin is connected with the vertical end of installed part, and the relative center pin of roll surface rotates, and convenience of customers adjusts the position of concrete sample.

The present invention may be further configured in a preferred embodiment as: the top of the seat body is positioned on one side of the groove and is provided with a graduated scale, and the zero scale of the graduated scale is positioned in the middle of the graduated scale.

Through adopting above-mentioned technical scheme, the user consults the distance between two sliders of scale fine adjustment, and convenience of customers uses.

The present invention may be further configured in a preferred embodiment as: a first corrugated hose is connected between two sliding blocks located in the same groove and located on the outer side of the bidirectional screw rod, a second corrugated hose is connected between the sliding blocks and the side wall of the groove and located on the outer side of the bidirectional screw rod.

Through adopting above-mentioned technical scheme, first corrugated hose and second corrugated hose protect two-way lead screw, prevent that the sediment card on the concrete sample from influencing its normal work on two-way lead screw.

The present invention may be further configured in a preferred embodiment as: the bearing plate top center is equipped with the recess, the recess is located under the push down device, the bearing plate top is located cement resistance to compression anchor clamps have been placed to groove.

Through adopting above-mentioned technical scheme, when the compressive property of user's needs test concrete sample, install cement resistance to compression anchor clamps in the recess, can carry out the compressive property test, and is simple, convenient, has increased the suitability of device.

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

1. when a user tests a concrete test piece, the test piece is placed on the two supporting seats, the hand wheel is rotated to control the bidirectional screw rod to rotate, the two sliding blocks are driven to mutually approach along the direction of the limiting grooves, the test piece is clamped between the two limiting rollers, and the test piece is limited; the upper surface of the placing table is a smooth cambered surface, so that the friction between the supporting seat and the concrete test piece can be reduced, and a user can conveniently adjust the position of the concrete test piece.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the backup pad of FIG. 1;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a partial structural schematic view of the limiting roller and the mounting member in fig. 2.

In the figure, 1, a base; 2. a column; 3. a cross beam; 4. a pressing device; 5. a support table; 6. a pressure bearing plate; 7. a supporting seat; 71. a base body; 72. a placing table; 73. a groove; 731. a graduated scale; 74. a bidirectional screw rod; 741. a first corrugated hose; 742. a second corrugated hose; 75. a hand wheel; 76. a limiting groove; 77. a limiting roller; 78. a slider; 781. mounting grooves; 79. a mounting member; 791. mounting a stud; 792. a nut; 793. a gasket; 794. a central shaft; 795. rolling surface; 8. a groove; 9. a cement compression-resistant clamp.

Detailed Description

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

As shown in fig. 1 and fig. 2, for the concrete bending resistance testing machine disclosed by the present invention, the concrete bending resistance testing machine comprises a base 1, two upright posts 2 vertically arranged on the top of the base 1, and a beam 3 connected to the top ends of the two upright posts 2, wherein the beam 3 is provided with a pressing device 4, a supporting platform 5 is arranged on the top of the base 1 under the pressing device 4, the top of the supporting platform 5 is provided with a pressure-bearing plate 6, two sides of the top of the pressure-bearing plate 6 are oppositely provided with supporting seats 7, each supporting seat 7 comprises a seat body 71 arranged on the top of the pressure-bearing plate 6, the top of each seat body 71 is connected with two placing tables 72 with smooth cambered surfaces on the upper surfaces, the placing tables 72 are parallel to the short edges of the pressure-bearing plate 6, a groove 73 is arranged in parallel between the two placing tables 72 of each supporting seat 7, a bidirectional screw rod 74 is rotatably, the top of the seat body 71 is provided with a graduated scale 731 on one side of the groove 73, the zero scale of the graduated scale 731 is positioned in the middle of the graduated scale 731, the two-way screw 74 is relatively provided with two sliding blocks 78, the side wall of the groove 73 is provided with a limit groove 76, the sliding blocks 78 are slidably connected on the limit groove 76, and the top of the sliding blocks 78 is provided with a limit roller 77. When a user tests a concrete test piece, the test piece is placed on the two supporting seats 7, the hand wheel 75 is rotated to control the bidirectional screw rod 74 to rotate, the two sliding blocks 78 are driven to mutually approach along the direction of the limiting groove 76, the test piece is clamped between the two limiting rollers 77, the test piece is limited, the distance between the two sliding blocks 78 is accurately adjusted by referring to the graduated scale 731, the device can test not only a prismatic test piece but also a cylindrical test piece, the application range of the device is enlarged, and the device is convenient for the user to use; the upper surface of the placing table 72 is a smooth cambered surface, so that the friction between the supporting seat 7 and the concrete sample can be reduced, and the position of the concrete sample can be adjusted by a user conveniently. In order to protect the bidirectional screw 74 and prevent slag on a concrete sample from being clamped on the bidirectional screw 74 to influence the normal operation of the bidirectional screw 74, a first corrugated hose 741 is connected between two sliders 78 in the same groove 73, the first corrugated hose 741 is located on the outer side of the bidirectional screw 74, a second corrugated hose 742 is connected between the sliders 78 and the side wall of the groove 73, and the second corrugated hose 742 is located on the outer side of the bidirectional screw 74.

As shown in fig. 3 and 4, each of the sliders 78 is provided with a mounting groove 781 with an inverted T-shaped cross section at the top, one end of the limiting roller 77 close to the slider 78 is fixedly connected with an inverted T-shaped mounting member 79, the mounting member 79 can slide at the mounting groove 781, the mounting groove 781 is formed at the edge of the top of the slider 78 to the center of the top, mounting studs 791 are relatively and convexly arranged on two sides of the end portion of the mounting member 79 far away from the limiting roller 77, the shortest distance between the two mounting studs 791 is equal to the width of the bottom end of the mounting groove 781 and is located on two sides of the slider 78, nuts 792 are arranged on the mounting studs 791, and gaskets 793 are arranged; spacing roller 77 passes through installed part 79 detachable and installs at slider 78 top, and the user loosens nut 792 and follows installation groove 781 opening one side with installed part 79 roll-off, and convenience of customers changes new spacing roller 77, extension fixture's life. In order to facilitate the user to adjust the position of the concrete sample, the limit roller 77 includes a central shaft 794 connected to the top of the mounting member 79, and a roller surface 795 is rotatably connected to the outer side of the central shaft 794.

As shown in figure 1, 6 top centers of bearing plate are equipped with recess 8, and recess 8 is located and pushes down under

device

4, and 6 tops of bearing plate are located recess 8 department and have placed cement resistance to compression anchor clamps 9, and when the compressive property of user's needs test concrete sample, install cement resistance to compression anchor clamps 9 in recess 8, can carry out the compressive property test to the concrete sample, and is simple, convenient, has increased the suitability of device.

The implementation principle of the embodiment is as follows: when a user needs to use the concrete bending resistance testing machine to test the bending resistance of a concrete test piece, the test piece is placed on the two supporting seats 7, the hand wheel 75 is rotated to control the bidirectional screw rod 74 to rotate, the two sliding blocks 78 are driven to mutually approach along the direction of the limiting groove 76, the test piece is clamped between the two limiting rollers 77, the test piece is limited, and the pressing device 4 is started to test; when the user need test concrete sample's compressive property, install cement resistance to compression anchor clamps 9 in recess 8, later start to push down device 4 and can carry out pressure test to concrete sample.

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 bending test machine, includes base (1), vertical setting at two stands (2) at base (1) top and connect in crossbeam (3) on two stand (2) tops, be provided with on crossbeam (3) and push down device (4), base (1) top is located be provided with brace table (5) under push down device (4), brace table (5) top is provided with bearing plate (6), bearing plate (6) top both sides are equipped with bearing (7) its characterized in that relatively: the supporting seat (7) comprises seat bodies (71) arranged at the tops of the bearing plates (6), the top of each seat body (71) is connected with two placing tables (72) with smooth cambered surfaces on the upper surfaces, the placing tables (72) are parallel to the short sides of the pressure bearing plates (6), a groove (73) is arranged between the two placing tables (72) of each supporting seat (7) in parallel, a bidirectional screw rod (74) is rotationally arranged in the groove (73), the bidirectional screw rod (74) is parallel to the placing table (72), a hand wheel (75) is arranged at one end of the bidirectional screw rod (74) which penetrates out of the groove (73), two sliding blocks (78) are oppositely arranged on the bidirectional screw rod (74), a limit groove (76) is arranged on the side wall of the groove (73), slider (78) sliding connection be in on spacing groove (76), slider (78) top is provided with spacing roller (77).

2. The concrete bending tester according to claim 1, wherein: each slider (78) top all is equipped with mounting groove (781) of cross-section for the type of falling T, mounting part (79) that spacing roller (77) are close to slider (78) one end fixedly connected with and are the type of falling T, mounting part (79) can locate to slide at mounting groove (781), the relative protrusion in tip both sides that spacing roller (77) were kept away from in mounting part (79) is provided with installation double-screw bolt (791), two the shortest distance equals and is located with the width of mounting groove (781) bottom between installation double-screw bolt (791) slider (78) both sides, be provided with nut (792) on installation double-screw bolt (791).

3. The concrete bending tester according to claim 2, wherein: the opening position of the mounting groove (781) is from the top edge of the sliding block (78) to the top center thereof.

4. The concrete bending tester according to claim 2, wherein: a gasket (793) is arranged between the nut (792) and the sliding block (78).

5. The concrete bending tester according to claim 2, wherein: spacing roller (77) are including connecting center pin (794) at installed part (79) top, center pin (794) outside is rotated and is connected with roller surface (795).

6. The concrete bending tester according to claim 1, wherein: the top of the seat body (71) is positioned at one side of the groove (73) and is provided with a graduated scale (731), and the zero scale of the graduated scale (731) is positioned in the middle of the graduated scale (731).

7. The concrete bending tester according to claim 1, wherein: a first corrugated hose (741) is connected between two sliding blocks (78) located in the same groove (73), the first corrugated hose (741) is located on the outer side of the two-way screw rod (74), a second corrugated hose (742) is connected between the sliding blocks (78) and the side wall of the groove (73), and the second corrugated hose (742) is located on the outer side of the two-way screw rod (74).

8. The concrete bending tester according to claim 1, wherein: the cement compression-resistant clamp is characterized in that a groove is formed in the center of the top of the pressure bearing plate (6), the groove is located under the pressing device (4), and the top of the pressure bearing plate (6) is located in the groove.