CN215448765U

CN215448765U - Pavement material strength tester

Info

Publication number: CN215448765U
Application number: CN202122147177.2U
Authority: CN
Inventors: 刘治平; 邓万明; 肖方广
Original assignee: Fujian Gute New Engineering Supervision Consulting Co ltd
Current assignee: Fujian Gute New Engineering Supervision Consulting Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-07
Anticipated expiration: 2031-09-07

Abstract

The application discloses a pavement material strength tester, which comprises a workbench, a bearing column arranged on the upper surface of the workbench, a driving mechanism arranged on the workbench, a pressure detection mechanism arranged below the driving mechanism and a pressure applying plate arranged below the pressure detection mechanism and positioned above the bearing column, wherein a barrier mechanism is arranged on the workbench and comprises a bottom plate detachably arranged on the upper surface of the workbench; enclose and keep off mechanism still including setting up at the bottom plate upper surface and the first bounding wall that upwards extends, first bounding wall is inside hollow cylindric structure, the internal diameter of first bounding wall is greater than the external diameter of bearing the post, vertical sliding connection has the second bounding wall with the coaxial setting of first bounding wall on the outer wall of first bounding wall, be provided with the stop gear who is used for fixing a position the second bounding wall on first bounding wall and the second bounding wall. The method and the device can reduce the risk that the worker is injured by the bullet in the operation process.

Description

Pavement material strength tester

Technical Field

The application relates to the technical field of pavement material detection, in particular to a pavement material strength tester.

Background

At present, when a pavement material is subjected to a bearing ratio (CBR) test of compressive strength, splitting strength, bending strength and the like, the pavement material needs to be placed on a pavement material strength tester for detection.

The current chinese utility model patent document with publication number CN211877594U discloses a pavement material strength tester, this tester includes the workstation, be provided with the carrier plate that is used for placing the test block on the workstation, be provided with supporting rod and the shrink mechanism that is used for the centre gripping test block on the carrier plate, the carrier plate top is provided with the lifter plate, the dish of exerting pressure and the pressure measurement mechanism of setting between lifter plate and the dish of exerting pressure, still be provided with the elevating system that the drive lifter plate reciprocated on the workstation, thereby the drive is exerted pressure and is coiled up-and-down motion.

In view of the above-mentioned related art, the inventor believes that during the process of detecting the strength of the test block by the downward movement of the pressure applying plate, the test block is crushed, and the generated partial fragments are easy to pop out, so that the risk of injuring workers is existed.

SUMMERY OF THE UTILITY MODEL

In order to reduce the risk that staff was wounded by the bullet in the operation process, this application provides a pavement material strength test appearance.

The application provides a pavement material strength test appearance adopts following technical scheme:

a pavement material strength tester comprises a workbench, a bearing column arranged on the upper surface of the workbench and used for placing a test block, a driving mechanism arranged on the workbench, a pressure detection mechanism arranged below the driving mechanism and a pressure application disc arranged below the pressure detection mechanism and positioned above the bearing column, wherein the driving mechanism can drive the pressure detection mechanism and the pressure application disc to move up and down; the enclosure mechanism further comprises a first enclosing plate which is arranged on the upper surface of the bottom plate and extends upwards, the first enclosing plate is of a hollow cylindrical structure, the inner diameter of the first enclosing plate is larger than the outer diameter of the bearing column, a second enclosing plate which is coaxial with the first enclosing plate is connected to the outer wall of the first enclosing plate in a vertical sliding mode, and limiting mechanisms used for positioning the second enclosing plate are arranged on the first enclosing plate and the second enclosing plate, so that the upper end of the second enclosing plate is higher than the bearing column.

Through adopting above-mentioned technical scheme, the bottom plate can be passed through to the carrier post, places the test block on the carrier post and before the pressure disk down motion butt test block is applyed with the actuating mechanism drive to the earlier, upwards slides the second bounding wall to fix a position through stop gear, make the second bounding wall can surround the test block and execute the pressure disk, thereby the fragment can be blocked by the second bounding wall when making the test block cracked to pop out, reduces the risk that the fragment bullet injures the staff.

Optionally, stop gear is including setting up on the outer wall of first bounding wall and along the spacing post of first bounding wall radial outside extension, stop gear is still including setting up the gliding sliding tray about being used for supplying spacing post on the second bounding wall, the second bounding wall is provided with the spacing groove in the one end that the sliding tray is close to the bottom plate, the spacing groove extends along the circumference of second bounding wall, spacing post slidable spacing inslot.

Through adopting above-mentioned technical scheme, when the second bounding wall slided from top to bottom, drive spacing post and slide from top to bottom in the sliding tray to inject gliding direction and distance from top to bottom of second bounding wall, can not break away from first bounding wall when making the second bounding wall upwards slide. When spacing post butt joint was close to the one end of bottom plate to the sliding tray, the second bounding wall can enclose the fender with the test block, sets up the spacing groove along second bounding wall circumference extension in the one end that the sliding tray is close to the bottom plate for can make spacing post spacing slide in the spacing inslot when rotating the second bounding wall, thereby prevent the second bounding wall and slide from top to bottom, thereby make and need not support the second bounding wall of location always in the process of the test, increase operation process's convenience.

Optionally, the second bounding wall is provided with the butt groove that upwards extends and be used for holding spacing post in the one end that the sliding tray was kept away from to the spacing groove.

Through adopting above-mentioned technical scheme, when spacing post butt when the one end of sliding tray is kept away from in the spacing groove, with spacing post rebound butt in the butt inslot for the second bounding wall can not continue to rotate, thereby spacing the second bounding wall, the improvement is enclosed and is kept off the stability of mechanism.

Optionally, a plurality of fixed blocks are arranged on the bottom plate, the fixed blocks are provided with telescopic springs extending upwards, and one ends, far away from the fixed blocks, of the telescopic springs are connected to the outer wall of the second enclosing plate.

Through adopting above-mentioned technical scheme, when spacing post butt when butt in the butt inslot, keep away from the one end of fixed block and the outer wall connection of second bounding wall with expanding spring for expanding spring is in tensile state, thereby expanding spring's pulling force can make the butt that spacing post is more firm at the butt inslot, and further carry on spacingly to the second bounding wall.

Optionally, one end of the telescopic spring, which is far away from the fixed block, is provided with a hook, and the outer wall of the second enclosing plate is provided with a fixed rod for hooking the hook.

By adopting the technical scheme, when the limiting column is abutted to the abutting groove, the telescopic spring is stretched, and the hook is hung on the fixed rod; when the second enclosing plate needs to slide, the hook is taken down from the fixed rod, and then the position of the second enclosing plate can be adjusted.

Optionally, the upper surface of the workbench is provided with a plurality of positioning columns extending upwards, the bottom plate is provided with positioning grooves for the positioning columns to penetrate through, and the positioning columns are connected with positioning covers in a threaded manner.

By adopting the technical scheme, before the test, the positioning column penetrates through the positioning groove, so that the bottom plate can be placed on the upper surface of the workbench, and the positioning cover is screwed from the upper surface of the bottom plate, so that the bottom plate is positioned between the positioning cover and the workbench; after the test is completed, the bottom plate can be detached, and materials blocked on the bottom plate by the blocking mechanism are cleaned, so that the convenience of cleaning work is improved.

Optionally, the positioning groove extends along the circumferential direction of the bottom plate, and a positioning hole for the positioning cover to penetrate through is formed in one end of the bottom plate at the positioning groove.

Through adopting above-mentioned technical scheme, when mounting plate, with location lid screwed connection on the reference column, the locating hole of bottom plate is aimed at the location lid and is inserted from the top to rotate the bottom plate along the constant head tank direction, make the reference column slide in the constant head tank, screw the location lid from the roof top again, thereby need not to dismantle the location lid when making mounting plate, increase the convenience of operation.

Optionally, the first enclosing plate and the second enclosing plate are made of transparent materials.

Through adopting above-mentioned technical scheme, transparent material's first bounding wall and second bounding wall can make the observation test process that operating personnel is more clear.

In summary, the present application includes at least one of the following benefits:

1. the second enclosing plate is connected to the outer wall of the first enclosing plate in a sliding mode and can limit through the limiting groove and the abutting groove, so that fragments generated when the test block is broken can be blocked;

2. the bottom plate is detachably mounted on the workbench, so that the cleaning after the test is more convenient.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is an exploded view of the containment and spacing mechanisms of the present embodiment;

fig. 3 is a sectional view of the enclosure mechanism of the present embodiment.

Description of reference numerals: 1. a work table; 2. a load bearing column; 3. testing blocks; 4. a drive mechanism; 5. a pressure detection mechanism; 6. pressing a disc; 7. a fence mechanism; 71. a base plate; 72. a first enclosing plate; 73. a second enclosing plate; 8. perforating holes; 9. a limiting mechanism; 91. a limiting column; 92. a sliding groove; 93. a limiting groove; 94. a butt joint groove; 10. a fixed block; 11. a tension spring; 12. hooking; 13. fixing the rod; 14. a positioning column; 15. a positioning cover; 16. positioning a groove; 17. and (7) positioning the holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses pavement material strength tester. Referring to fig. 1 and 2, the pavement material strength tester comprises a workbench 1, wherein a bearing column 2 in a cylindrical structure is fixed on the upper surface of the workbench 1, and the bearing column 2 is used for placing a test block 3 required by the test. Still be provided with actuating mechanism 4 on the workstation 1, actuating mechanism 4 below is provided with pressure detection mechanism 5, and pressure detection mechanism 5 below is connected with and exerts pressure dish 6, and the dish 6 that exerts pressure is located the top of bearing post 2 and corresponds with bearing post 2, and actuating mechanism 4 can drive pressure detection mechanism 5 and the dish 6 that exerts pressure and move up and down together. During the test, the driving mechanism 4 drives the pressure detecting mechanism 5 and the pressing plate 6 to move downward, so that the test block 3 is abutted between the pressing plate 6 and the bearing column 2, and when the pressing plate 6 continues to move downward, the test block 3 is cracked under a certain pressure, which is the prior art and is not described herein.

Referring to fig. 2 and 3, the workbench 1 is provided with a surrounding blocking mechanism 7 for surrounding the bearing column 2, the surrounding blocking mechanism 7 comprises a bottom plate 71 detachably connected to the upper surface of the workbench 1 and having a cylindrical structure, the bottom plate 71 is provided with a through hole 8 which has a diameter equivalent to that of the bearing column 2 and is used for the bearing column 2 to penetrate, and the bottom plate 71 and the bearing column 2 are coaxially arranged. Enclose and keep off mechanism 7 still includes the first bounding wall 72 that is fixed in bottom plate 71 upper surface and vertical upwards extends, and first bounding wall 72 is cylindric inside hollow structure, and the internal diameter of first bounding wall 72 is greater than the internal diameter of carrier post 2, and the height of first bounding wall 72 is less than the height of carrier post 2 for first bounding wall 72 can not cause the hindrance to the process of placing test block 3 on carrier post 2.

Referring to fig. 2 and 3, a second enclosing plate 73 is vertically and slidably connected to the outer wall of the first enclosing plate 72, the second enclosing plate 73 is a cylindrical structure with a hollow interior and is coaxially arranged with the first enclosing plate 72, and a limiting mechanism 9 for positioning the second enclosing plate 73 is arranged between the first enclosing plate 72 and the second enclosing plate 73. With second bounding wall 73 along the vertical upwards slip of first bounding wall 72 outer wall, and fix a position the back to second bounding wall 73, there is the part that surpasss the support post 2 upper end in the upper end of second bounding wall 73 for when pressure plate 6 moves down crushing test block 3, second bounding wall 73 can block the fragment of departure, increases operation process's security. Further, the inner diameter of the second surrounding plate 73 is equivalent to the outer diameter of the first surrounding plate 72, so that fragments cannot fall from the gap between the first surrounding plate 72 and the second surrounding plate 73, and the fragments can be collected in the second surrounding plate 73. In order to enable the test block 3 to be observed more conveniently during the test, the first enclosing plate 72 and the second enclosing plate 73 are made of transparent materials, such as transparent polycarbonate, polymethyl methacrylate, and the like.

Referring to fig. 2 and 3, the limiting mechanism 9 includes two limiting posts 91 fixed on the outer wall of the first enclosing plate 72, the limiting posts 91 extend outwards along the radial direction of the first enclosing plate 72, and the two limiting posts 91 are symmetrically arranged. The limiting mechanism 9 further includes a sliding groove 92 provided on the second enclosing plate 73, and the sliding groove 92 extends axially along the second enclosing plate 73 and is used for allowing the limiting column 91 to slide up and down. When the second enclosing plate 73 is not slid, the limiting column 91 is abutted against the inner wall of the upper end of the sliding groove 92, the second enclosing plate 73 is slid upwards, the sliding groove 92 can be driven to move upwards, and when the limiting column 91 is abutted against one end, close to the bottom plate 71, of the sliding groove 92, the second enclosing plate 73 cannot continue to slide upwards, so that the situation that the second enclosing plate 73 is completely separated from the first enclosing plate 72 is avoided. In order to enable the second enclosing plate 73 to slide upwards to a certain height, a limiting groove 93 for the limiting column 91 to slide in circumferentially is formed in one end, close to the bottom plate 71, of the sliding groove 92, the limiting groove 93 extends along the circumferential direction of the second enclosing plate 73, when the limiting column 91 abuts against the bottom end of the sliding groove 92, the second enclosing plate 73 is rotated to slide the limiting column 91 into the limiting groove 93, the limiting column 91 slides in the limiting groove 93 along the circumferential direction of the second enclosing plate 73, and therefore the second enclosing plate 73 can be prevented from sliding up and down.

Referring to fig. 1 and 2, the second enclosing plate 73 is provided with a butting groove 94 at one end of the limiting groove 93 far away from the sliding groove 92, the butting groove 94 extends upwards, the limiting column 91 can be accommodated in the butting groove 94, and when the second enclosing plate 73 rotates to the end, far away from the sliding groove 92, of the limiting column 91, the second enclosing plate 73 slides downwards to enable the limiting column 91 to be butted in the butting groove 94, so that the second enclosing plate 73 cannot rotate along the circumferential direction.

Referring to fig. 1 and 2, in order to further stabilize the position of the second enclosing plate 73, two fixing blocks 10 are fixed on the bottom plate 71, the two fixing blocks 10 are square and symmetrically arranged on two sides of the bottom plate 71, one side of the fixing block 10 far away from the bottom plate 71 is fixedly connected with an upwardly extending telescopic spring 11, one end of the telescopic spring 11 far away from the fixing block 10 is provided with a hook 12, the hook 12 is welded on the upper end of the telescopic spring 11, a fixing rod 13 for hooking the hook 12 is fixed on the outer wall of the second enclosing plate 73, when the position-limiting post 91 is abutted to the abutting groove 94, the extension spring 11 is stretched, the hook 12 is hung on the fixed rod 13, one end of the extension spring 11 is connected to the outer wall of the second enclosing plate 73, therefore, the elastic force of the spring in the stretching state can limit the second enclosing plate 73 to move upwards, so that the limiting column 91 is abutted against the abutting groove 94, and the stability of the second enclosing plate 73 is further improved.

Referring to fig. 1 and 2, the fixed surface of workstation 1 has two vertical upwards extending reference column 14, and threaded connection has the location lid 15 of cylindric structure on the reference column 14, two reference column 14 symmetries set up in bearing post 2 both sides, set up the constant head tank 16 that supplies reference column 14 to wear to establish on the bottom plate 71, can wear to establish constant head tank 16 with reference column 14 during mounting plate 71, and screw location lid 15 from bottom plate 71 upper surface, thereby fix a position bottom plate 71 between location lid 15 and workstation 1. In order to make the installation more convenient, the constant head tank 16 extends along the circumference of bottom plate 71, bottom plate 71 has seted up locating hole 17 in the one end of constant head tank 16, the diameter of locating hole 17 is greater than locating cover 15, make locating cover 15 can pass and set for locating hole 17, thereby need not to take off locating cover 15 from reference column 14 completely when mounting plate 71, can wear to establish locating hole 17 with locating cover 15, slide into constant head tank 16 with reference column 14 again and screw locating cover 15, can fix a position bottom plate 71, make the installation of bottom plate 71 more convenient.

The implementation principle of the pavement material strength tester in the embodiment of the application is as follows: the positioning column 14 is arranged on the upper surface of the worktable 1 through the positioning groove 16 and the positioning cover 15 is screwed to position the bottom plate 71, before the driving mechanism 4 drives the pressing disc 6 to move downwards to abut against the test block 3, the second enclosing plate 73 slides upwards along the outer wall of the first enclosing plate 72, so that the limiting column 91 abuts against one end of the sliding groove 92 close to the bottom plate 71, then the second enclosing plate 73 rotates along the circumferential direction, so that the limiting column 91 slides into the limiting groove 93, when the position-limiting post 91 abuts against one end of the position-limiting groove 93 far from the sliding groove 92, the second enclosing plate 73 is slid upwards, so that the position-limiting post 91 abuts against the abutting groove 94, thereby positioning the second enclosing plate 73, enabling the second enclosing plate 73 to resist the fragments of the test block 3 in the second enclosing plate 73, and some fragments generated can fall between the first enclosing plate 72 and the bearing column 2, and the bottom plate 71 can be detached for cleaning.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pavement material strength test appearance, includes workstation (1), sets up bearing post (2) that the upper surface is used for placing test block (3) at workstation (1), actuating mechanism (4) of setting on workstation (1), set up pressure detection mechanism (5) below actuating mechanism (4) and set up pressure application dish (6) in pressure detection mechanism (5) below and be located bearing post (2) top, actuating mechanism (4) can drive pressure detection mechanism (5) and pressure application dish (6) and reciprocate, its characterized in that: the worktable (1) is provided with a surrounding mechanism (7) for surrounding the bearing column (2), the surrounding mechanism (7) comprises a bottom plate (71) detachably arranged on the upper surface of the worktable (1), and the bottom plate (71) is provided with a through hole (8) for the bearing column (2) to penetrate through; enclose fender mechanism (7) and still including setting up first bounding wall (72) at bottom plate (71) upper surface and upwards extension, first bounding wall (72) are inside hollow cylindric structure, the internal diameter of first bounding wall (72) is greater than the external diameter that bears post (2), vertical sliding connection has second bounding wall (73) with first bounding wall (72) coaxial setting on the outer wall of first bounding wall (72), be provided with stop gear (9) that are used for fixing a position second bounding wall (73) on first bounding wall (72) and second bounding wall (73) for there is the part that is higher than bearing post (2) in the upper end of second bounding wall (73).

2. The pavement material strength tester according to claim 1, wherein: stop gear (9) are including setting up on the outer wall of first bounding wall (72) and along first bounding wall (72) radial extending's spacing post (91), stop gear (9) are still including setting up on second bounding wall (73) and being used for supplying gliding sliding tray (92) from top to bottom of spacing post (91), second bounding wall (73) are provided with spacing groove (93) in sliding tray (92) one end near bottom plate (71), the circumference of second bounding wall (73) is extended along spacing groove (93), spacing post (91) can slide in spacing groove (93).

3. The pavement material strength tester according to claim 2, wherein: the second enclosing plate (73) is provided with an abutting groove (94) which extends upwards and is used for accommodating the limiting column (91) at one end of the limiting groove (93) far away from the sliding groove (92).

4. The pavement material strength tester according to claim 3, wherein: the novel plastic packaging box is characterized in that a plurality of fixing blocks (10) are arranged on the bottom plate (71), an expansion spring (11) extending upwards is arranged on each fixing block (10), and one end, far away from each fixing block (10), of each expansion spring (11) is connected to the outer wall of the second enclosing plate (73).

5. The pavement material strength tester according to claim 4, wherein: one end, far away from the fixed block (10), of the telescopic spring (11) is provided with a hook (12), and a fixed rod (13) for hooking the hook (12) is arranged on the outer wall of the second enclosing plate (73).

6. The pavement material strength tester according to claim 1, wherein: workstation (1) upper surface is provided with a plurality of reference column (14) that upwards extend, be provided with constant head tank (16) that supply reference column (14) to pass on bottom plate (71), threaded connection has location lid (15) on reference column (14).

7. The pavement material strength tester according to claim 6, wherein: the locating groove (16) extends along the circumferential direction of the bottom plate (71), and a locating hole (17) through which the locating cover (15) can penetrate is formed in one end of the bottom plate (71) at the locating groove (16).

8. The pavement material strength tester according to claim 1, wherein: the first enclosing plate (72) and the second enclosing plate (73) are made of transparent materials.