CN220603186U

CN220603186U - Flexural strength testing machine

Info

Publication number: CN220603186U
Application number: CN202322312957.7U
Authority: CN
Inventors: 颜景
Original assignee: Xijing University
Current assignee: Xijing University
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-15
Anticipated expiration: 2033-08-28

Abstract

The utility model discloses a flexural strength testing machine, which belongs to the technical field of concrete tests and comprises a base, wherein a support is arranged at the top of the base, a hydraulic cylinder is arranged at the top of the support, the output end of the hydraulic cylinder faces to the base, a pressure sensor is arranged at the output end of the hydraulic cylinder, an upper pressing block is arranged at the bottom of the pressure sensor, a carrying platform is fixed at the middle position of the top of the base, and a supporting mechanism is arranged at the top of the carrying platform. The utility model has the advantages that the setting of the linkage mechanism consisting of the mounting cavity, the gear, the rack and the reset spring in the carrier is matched with the squeeze plates at the two sides of the carrier for use, and after the test block is placed at the top of the supporting mechanism, the test block can be moved towards the end part of the test block by pushing one group of squeeze plates, at the moment, the two groups of test blocks can be moved towards each other, the position of the gear block is corrected, the squeeze pad of the upper press block is ensured to be positioned at the middle position of the test block, and the accuracy of the test result is improved.

Description

Flexural strength testing machine

Technical Field

The utility model relates to a flexural strength testing machine, and belongs to the technical field of concrete tests.

Background

The flexural strength of concrete is an important parameter for concrete pavement design, and in order to ensure construction quality, a testing machine is also required to be used for measuring the flexural strength according to regulations during the construction of the cement concrete pavement.

The utility model of application number 202222928997.X discloses a concrete flexural strength test, through the setting of structures such as test machine base, loading board, air bar, pressure sensor, clearance brush, motor and circular loading box, when pressure piece and pressure sensor move down, test the sample, and through the hollow setting of circular loading box, make the device can test concrete flexural strength, around the test, start the air pump, make clearance piece and clearance brush remove to the laminating with circular loading box surface, afterwards start the motor, make circular loading box rotate, clear up circular loading box and place the piece on board surface, make it can not influence test accuracy when the test, thereby need not artifical manual removal debris such as little stone around making the test, the operation is simpler, make the device use more convenient.

Similar to the above-mentioned application, there are currently disadvantages:

1. in the test process, the top pressing block is required to be ensured to be positioned at the center of the test block, and the current correction of the test block still adopts a manual visual inspection mode, so that the accuracy of the placement position of the test block cannot be ensured, and the measurement effect is influenced;

2. in the process of cleaning scraps, various operations are needed, the use is complex, and the cleaning is complex;

for this purpose, a flexural strength tester was designed to optimize the above-mentioned problems.

Disclosure of Invention

The utility model mainly aims to provide a flexural strength testing machine, the setting of a linkage mechanism composed of a carrier internally provided with a cavity, a gear, a rack and a return spring is matched with the squeezing plates at two sides of the carrier for use, after a test block is placed at the top of a supporting mechanism, a group of squeezing plates can be pushed to move towards the end part of the test block, at the moment, two groups of test blocks can move in opposite directions to correct the position of the tooth block, the squeezing pad of an upper pressing block is ensured to be positioned at the middle position of the test block, the accuracy of a test result is improved, the supporting mechanism composed of upright posts, supporting columns and adjusting blocks symmetrically arranged at two ends of the top of the carrier is matched with a brushing plate, a receiving groove and a drawer for use, the top of the supporting column can be cleaned through the rotation of the supporting columns, the use is more convenient, and in addition, the test blocks with different sizes can be positioned in the use process through limiting grooves with different depths on the supporting columns, and the practicability is higher.

The aim of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a flexural strength testing machine, includes the base, the support is installed at the top of base, the pneumatic cylinder is installed at the top of support, the output of pneumatic cylinder is towards the base, pressure sensor is installed to the output of pneumatic cylinder, pressure sensor's bottom is installed and is pressed the piece, the intermediate position department at base top is fixed with the carrier, the top of carrier is provided with supporting mechanism, the installation cavity has been seted up to the inside of carrier, the intermediate position department in installation cavity rotates installs the gear, the both ends of gear both sides all mesh with the rack, the one end of rack all extends to the outside of carrier, all be provided with reset spring between the inner tip of rack and installation cavity, the tip of rack all is fixed with the stripper plate.

Preferably: the two ends of the carrying platform are provided with notches, the racks respectively extend out of the notches, and the width of the extrusion plate is the same as the length of the notch groove.

Preferably: the bottom of base is provided with the slipmat, the both sides of support all are provided with the lifter.

Preferably: the support mechanism comprises four groups of upright posts, support columns and adjusting blocks, wherein the upright posts are respectively arranged on two sides of the top of the carrying platform, the support columns are respectively and rotatably arranged between the upright posts on two sides of the carrying platform, one ends of the support columns are respectively and fixedly provided with the adjusting blocks, brush plates are respectively arranged between the upright posts on two sides of the carrying platform, and the brush plates are attached to the surfaces of the support columns.

Preferably: limiting grooves with different depths are formed in the tops of the supporting columns, and the end portions of the limiting grooves are round angle surfaces.

Preferably: the middle position of the top of the carrying platform is provided with a receiving groove, and two side surfaces of the receiving groove are inclined surfaces.

Preferably: the inner bottom of the receiving groove is provided with a drawer which is connected with the carrying platform in a sliding way.

The beneficial effects of the utility model are as follows:

according to the flexural strength testing machine provided by the utility model, the linkage mechanism consisting of the cavity, the gear, the rack and the reset spring is arranged in the carrier, and the flexural strength testing machine is matched with the squeeze plates at two sides of the carrier for use, so that after the test block is placed at the top of the supporting mechanism, a group of squeeze plates are pushed to move towards the end part of the test block, at the moment, the two groups of test blocks can move in opposite directions, the position of the tooth block is corrected, the squeeze pad of the upper press block is ensured to be positioned at the middle position of the test block, and the accuracy of a test result is improved;

through the supporting mechanism that stand, support column and regulating block that platform top both ends symmetry set up, cooperation brush board, receiving tank and drawer use again, can be after experimental completion, through the rotation to the support column, just can clean the top of support column, it is more convenient to use, in addition through the spacing groove of different degree of depth on the support column, can fix a position the test block of equidimension in the in-process of using, the practicality is higher.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a top view of the stage according to the present utility model;

FIG. 3 is a cross-sectional view of a stage of the present utility model;

fig. 4 is a cross-sectional view of a support column of the present utility model.

In the figure: 1. a base; 2. a bracket; 3. a hydraulic cylinder; 4. a pressure sensor; 5. pressing into blocks; 6. a carrier; 7. a support mechanism; 8. a mounting cavity; 9. a gear; 10. a rack; 11. a return spring; 12. an extrusion plate; 13. a column; 14. a support column; 15. an adjusting block; 16. brushing a plate; 17. a receiving groove; 18. and a drawer.

Detailed Description

In order to make the technical solution of the present utility model more clear and clear to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.

Example 1

As shown in fig. 1-4, this embodiment provides a flexural strength testing machine, including base 1, support 2 is installed at the top of base 1, the bottom of base 1 is provided with the slipmat, the stability of device placement has been ensured, both sides of support 2 all are provided with the lifter, can conveniently carry the device and remove, pneumatic cylinder 3 is installed at the top of support 2, the output of pneumatic cylinder 3 is towards base 1, pressure sensor 4 is installed to the output of pneumatic cylinder 3, upper briquetting 5 is installed to the bottom of pressure sensor 4, the intermediate position department at base 1 top is fixed with carrier 6, the top of carrier 6 is provided with supporting mechanism 7, the installation cavity 8 has been seted up to the inside of carrier 6, the intermediate position department rotation of installation cavity 8 installs gear 9, rack 10 has all been meshed at the both ends on both sides of gear 9, the one end of rack 10 all extends to the outside of carrier 6, all be provided with reset spring 11 between rack 10 and the inner tip of installation cavity 8, the tip of 10 all is fixed with board 12, the breach is all provided with at the both ends of carrier 6, 10 respectively, the breach is followed inside width and the same as the length of groove of rack 12 to extrude the board.

During the use, place base 1 steadily on the mesa, then place the supporting mechanism 7's top with the test block, the both ends of test block are respectively towards stripper plate 12, then promote stripper plate 12 from one side and remove towards the direction of test block, because mutually supporting between rack 10 and the gear 9, consequently two sets of stripper plates 12 remove in opposite directions, correct the position of test block, after the position adjustment of test block is accomplished, loosen stripper plate 12, automatic re-setting under reset spring 11's elasticity effect, the lower of briquetting 5 is gone up in the control of restarting pneumatic cylinder 3, and utilize pressure sensor 4 to carry out pressure detection.

Example two

In this embodiment, as shown in fig. 1-4, the supporting mechanism 7 includes four groups of upright posts 13, supporting posts 14 and adjusting blocks 15, the upright posts 13 are all erected on two sides of the top of the carrier 6, the supporting posts 14 are all rotatably installed between the upright posts 13 on two sides of the carrier 6, one end of each supporting post 14 is fixedly installed with the adjusting block 15, a brush plate 16 is arranged between the upright posts 13 on two sides of the carrier 6, and the brush plate 16 is attached to the surface of the supporting post 14.

During the use, the test block is placed at the top of two sets of support columns 14, and after the test block is experimental, through the rotation of regulating block 15 control support column 14, brush board 16 directly cleans the surface of support column 14, and it is more convenient to use.

In this embodiment, the top of the supporting column 14 is provided with limiting grooves with different depths, and the ends of the limiting grooves are rounded.

Utilize the setting of multiunit spacing groove, can test the test block of different specifications, in addition through the setting of spacing groove tip rounded corner face, can conveniently place the inside of spacing groove with the test block.

In this embodiment, a receiving slot 17 is formed in the middle position of the top of the carrier 6, and both sides of the receiving slot 17 are inclined planes.

After cleaning the slag on the surface of the support column 14, the slag falls into the interior of the receiving groove 17 to be collected.

In the present embodiment, the inner bottom of the receiving groove 17 is provided with a drawer 18, and the drawer 18 is slidably connected to the stage 6.

The slag falls down along the inclined surface of the receiving groove 17 into the interior of the drawer 18 for uniform treatment.

The above description is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.

Claims

1. The utility model provides a flexural strength testing machine which characterized in that: including base (1), support (2) are installed at the top of base (1), pneumatic cylinder (3) are installed at the top of support (2), the output of pneumatic cylinder (3) is towards base (1), pressure sensor (4) are installed to the output of pneumatic cylinder (3), briquetting (5) are installed to the bottom of pressure sensor (4), intermediate position department at base (1) top is fixed with carrier (6), the top of carrier (6) is provided with supporting mechanism (7), install chamber (8) in the inside of carrier (6), install the intermediate position department rotation of chamber (8) and install gear (9), rack (10) are all meshed at the both ends of gear (9) both sides, the one end of rack (10) all extends to the outside of carrier (6), all be provided with reset spring (11) between the inner tip of rack (10) and installation chamber (8), the tip of rack (10) all is fixed with stripper plate (12).

2. The flexural strength testing machine of claim 1 wherein: both ends of the carrying platform (6) are provided with notches, the racks (10) respectively extend out of the notches, and the width of the extrusion plate (12) is the same as the length of the notch groove.

3. The flexural strength testing machine of claim 2 wherein: the bottom of base (1) is provided with the slipmat, both sides of support (2) all are provided with the lifter.

4. A flexural strength testing machine as claimed in claim 3, wherein: the supporting mechanism (7) comprises upright posts (13), supporting columns (14) and adjusting blocks (15), the upright posts (13) are provided with four groups, the upright posts (13) are all erected on two sides of the top of the carrying platform (6), the supporting columns (14) are all rotatably installed between the upright posts (13) on two sides of the carrying platform (6), the adjusting blocks (15) are fixedly installed at one ends of the supporting columns (14), brush plates (16) are arranged between the upright posts (13) on two sides of the carrying platform (6), and the brush plates (16) are attached to the surfaces of the supporting columns (14).

5. The flexural strength testing machine of claim 4 wherein: limiting grooves with different depths are formed in the tops of the supporting columns (14), and the end portions of the limiting grooves are round angle faces.

6. The flexural strength testing machine of claim 5 wherein: a receiving groove (17) is formed in the middle position of the top of the carrying platform (6), and two side surfaces of the receiving groove (17) are inclined surfaces.

7. The flexural strength testing machine of claim 6 wherein: the inner bottom of the receiving groove (17) is provided with a drawer (18), and the drawer (18) is in sliding connection with the carrying platform (6).