CN211825547U

CN211825547U - Concrete slump tester

Info

Publication number: CN211825547U
Application number: CN202020482963.0U
Authority: CN
Inventors: 史俊宝; 李宝云; 孟辉; 董闰; 李玉梅; 张文军; 蔡雪菲
Original assignee: Langfang Yijia Water Conservancy And Hydropower Engineering Testing Co ltd
Current assignee: Hebei Yijia Engineering Testing Co.,Ltd.
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-10-30
Anticipated expiration: 2030-04-03

Abstract

The utility model belongs to the technical field of the technique of engineering detection instrument and specifically relates to a concrete slump tester is related to, including base and the slump test section of thick bamboo of setting on the base, the vertical fixation has two supporting shoes on the base, two the supporting shoe symmetry sets up in the both sides of slump test section of thick bamboo, the storage tank has been seted up on the supporting shoe, it is provided with the lead screw to rotate in the storage tank, it is provided with the movable block to slide on the lead screw, the fixed connecting rod that is provided with between movable block and the slump test section of thick bamboo, be provided with on the base and drive lead screw pivoted drive assembly. The utility model discloses the effect of accuracy when having the test of improvement slump.

Description

Concrete slump tester

Technical Field

The utility model belongs to the technical field of the technique of engineering detection instrument and specifically relates to a concrete slump tester is related to.

Background

Slump is a method and an index for measuring concrete workability, slump tests are usually carried out in construction sites and laboratories to measure the fluidity of the mixture, and visual experience is used for evaluating the cohesiveness and the water retention. The slump is measured by a quantitative index of the workability or the fluidity degree, and is used for judging whether the construction can be normally carried out.

The slump tester is a tool for detecting slump, and is structurally a horn-shaped pipe with a narrow upper opening and a wide lower opening. During testing, the concrete is filled into a slump tester for three times, and is uniformly impacted by a tamping hammer along the pipe wall from outside to inside for 25 times after each filling, and is leveled after tamping. And pulling up the slump tester, wherein the concrete generates a slump phenomenon due to self weight, and subtracting the height of the highest point of the slump concrete from the height of the slump tester to obtain the slump.

When pulling up, because the work is pulled up, the current slump tester can not guarantee vertical pulling up in the pulling up process, therefore the inner wall of the slump tester touches the concrete heap that forms in the slump tester very easily, makes accumulational concrete in the slump tester receive the influence and produce and warp after touching to the slump that measures after leading to the concrete to produce the slump phenomenon is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concrete slump apparatus, accuracy when effectively improving the slump test.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a concrete slump apparatus, includes base and the slump test section of thick bamboo of setting on the base, the vertical fixation has two supporting shoes on the base, two the supporting shoe symmetry sets up in the both sides of slump test section of thick bamboo, the storage tank has been seted up on the supporting shoe, it is provided with the lead screw to rotate in the storage tank, it is provided with the movable block to slide on the lead screw, the fixed connecting rod that is provided with between movable block and the slump test section of thick bamboo, be provided with on the base and drive lead screw pivoted drive assembly.

Through adopting above-mentioned technical scheme, prevent that the staff from upwards pulling out when slump test section of thick bamboo, slump test section of thick bamboo produces the removal of horizontal direction to measuring degree of accuracy has been improved. The method specifically comprises the following steps: the staff packs the concrete into a slump test section of thick bamboo, uses drive assembly upwards to rise slump test section of thick bamboo after tamping concrete and trowelling. The lead screw can drive the moving block to move on the supporting block when rotating. Because the supporting shoe vertical fixation is on the base, and the storage tank also keeps perpendicular with the base, and the storage tank has played the effect of direction to the removal of movable block for slump test section of thick bamboo can be lifted by vertical.

The utility model discloses further set up to: the base is internally provided with a cavity, the driving assembly comprises a worm wheel fixed at the bottom end of the screw rod and a worm rotatably arranged in the cavity, and the worm is meshed with the worm wheel.

Through adopting above-mentioned technical scheme, realized the drive to the lead screw, specifically do: the worm is rotated, and the worm is meshed with the worm wheel on the screw rod, so that the worm can drive the worm wheel to rotate when rotating. The worm wheel is fixed with the lead screw, and when the worm wheel rotates, the lead screw rotates together, so that the moving block ascends or descends along the axis of the lead screw.

The utility model discloses further set up to: one end of the worm penetrates through the base and extends outwards, and a rocking handle is fixed at one end of the worm, which is positioned outside the base.

By adopting the technical scheme, the worm can be conveniently controlled by workers to rotate, and the workers can conveniently hold the worm. The rotation of the worm is driven by rotating the rocking handle, so that the device is convenient and practical.

The utility model discloses further set up to: the containing groove is a T-shaped groove, and the moving block is a T-shaped block matched with the containing groove.

Through adopting above-mentioned technical scheme, the stationarity of movable block when having strengthened the removal in the storage tank has carried out better spacing to the movable block through the storage tank of T type. Meanwhile, when the moving block moves in the accommodating groove, the accommodating groove can play a certain supporting role on the moving block, and the load on the lead screw is reduced.

The utility model discloses further set up to: and reinforcing ribs are fixedly arranged between the supporting block and the base.

Through adopting above-mentioned technical scheme, consolidated the connection face between supporting shoe and the base, strengthened the joint strength between base and the supporting shoe for the supporting shoe is difficult for following the base rupture more.

The utility model discloses further set up to: the top of slump test section of thick bamboo can be dismantled and be provided with the funnel.

Through adopting above-mentioned technical scheme, made things convenient for during the staff fills concrete into slump test section of thick bamboo, specifically do: the funnel has enlarged the mouth of pipe that gets into the slump test section of thick bamboo for when the staff filled the concrete into the slump test section of thick bamboo, the concrete was difficult for overflowing from the mouth of pipe.

The utility model discloses further set up to: the supporting block is provided with scales.

By adopting the technical scheme, the working personnel can more intuitively obtain the slump data.

The utility model discloses further set up to: and the base is provided with a positioning groove matched with the bottom surface of the slump testing cylinder.

Through adopting above-mentioned technical scheme, carried out spacingly to slump test section of thick bamboo, prevent when carrying out concrete filling to slump test section of thick bamboo, the skew of horizontal direction takes place for slump test section of thick bamboo, has guaranteed the steadiness when filling the concrete to measuring accuracy has been promoted.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the slump of concrete needs to be measured, the concrete is filled into the slump test cylinder, the concrete is tamped and then leveled, the slump test cylinder is lifted upwards by the driving assembly, the two moving blocks move in the accommodating groove, and the slump test cylinder is guided in the vertical direction, so that the slump test cylinder moves in the horizontal direction when lifted, and the measurement accuracy is improved;

2. the constant head tank of seting up on the base makes the staff when filling the concrete in to slump test section of thick bamboo, and slump test section of thick bamboo is difficult for taking place horizontal skew, has guaranteed the steadiness when slump test section of thick bamboo is filled, has promoted the accuracy when measuring.

Drawings

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

Fig. 2 is a schematic view of the supporting block in a split state.

Fig. 3 is a schematic view of the cutting state of the present invention.

Reference numerals: 1. the slump constant-pressure testing device comprises a base, 11, a cavity, 12, reinforcing ribs, 13, positioning grooves, 2, a slump testing cylinder, 21, a funnel, 3, a supporting block, 31, a containing groove, 4, a screw rod, 5, a moving block, 6, a connecting rod, 7, a worm wheel, 8, a worm, 81 and a rocking handle.

Detailed Description

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

Referring to fig. 1 and fig. 2, for the embodiment of the utility model discloses a concrete slump tester, including base 1 and the slump test section of thick bamboo 2 of setting on base 1. The slump test cylinder 2 is of a reducing pipe structure, and the pipe diameter is gradually enlarged from top to bottom. Two supporting blocks 3 are vertically fixed on the base 1, and the length direction of the supporting blocks 3 is vertical to the plane of the base 1. Two supporting blocks 3 are symmetrically arranged on two sides of the slump testing cylinder 2. A containing groove 31 is formed at one side of the two supporting blocks 3 close to each other. The receiving groove 31 is opened along the longitudinal direction of the supporting block 3. The screw 4 is rotatably provided in the accommodating groove 31, and the axial direction of the screw 4 is the same as the longitudinal direction of the accommodating groove 31. The lead screw 4 is in threaded connection with a moving block 5, the outer wall of the moving block 5 is attached to the inner wall of the accommodating groove 31, and when the lead screw 4 rotates, the moving block 5 moves along the axis of the lead screw 4. A connecting rod 6 is fixedly arranged between the moving blocks 5 and the slump testing barrel 2, so that the two moving blocks 5 can drive the slump testing barrel 2 to move together when moving. The base 1 is provided with a driving component for driving the screw rod 4 to rotate.

Under normal condition, slump test section of thick bamboo 2's bottom supports on base 1, and during staff divided the cubic and load concrete into slump test section of thick bamboo 2, all used the rammer to strike along the even outside-in of section of thick bamboo wall after filling at every turn, and the tamping back is floated. The two lead screws 4 are driven to rotate through the driving assembly, so that the moving block 5 on the lead screws 4 moves upwards. During the upward movement of the moving block 5, the slump test cartridge 2 is vertically lifted upward. The slump test cylinder 2 is completely lifted, the concrete is exposed, and the concrete collapses due to self weight. And subtracting the height of the highest point of the concrete after the collapse from the height of the slump test cylinder 2 to obtain the slump.

Referring to fig. 3, a cavity 11 is formed in the base 1, so that the interior of the base 1 is a hollow structure. The bottom end of the screw rod 4 penetrates through the upper surface of the base 1 and the cavity 11 and is rotatably arranged on the lower surface of the base 1. The drive assembly comprises a worm wheel 7 fixed to the lead screw 4 and a worm 8 rotatably disposed in a cavity 11. The worm wheel 7 is arranged on the part of the screw rod 4 in the cavity 11, and the axis of the worm wheel 7 is coincident with the axis of the screw rod 4. The worm 8 is provided with two helical teeth so that the worm 8 meshes with the two worm wheels 7 simultaneously. When the worm 8 rotates, the two worm wheels 7 can be driven to rotate.

The worm 8 is rotated, and the worm 8 meshes with the worm wheels 7, so that the two worm wheels 7 are rotated. The worm wheel 7 drives the lead screw 4 to rotate when rotating, and the moving block 5 is limited in the accommodating groove 31 and cannot rotate, so that when the lead screw 4 rotates, the moving block 5 goes up and down along the lead screw 4.

Referring to fig. 3, in order to facilitate the worker to rotate the worm 8, one end of the worm 8 is disposed to penetrate through the base 1 and extend outward, and a rocking handle 81 is fixedly connected to one end of the worm 8 located outside the base 1. The worker can rotate the worm 8 by rotating the crank 81.

Referring back to fig. 2, in order to improve the smoothness of the moving block 5 moving in the receiving groove 31, the receiving groove 31 is a T-shaped groove, and the moving block 5 is a T-shaped block matching with the receiving groove 31.

Referring to fig. 2, in order to increase the strength of the connection surface between the support block 3 and the base 1, a reinforcing rib 12 is fixedly provided between the base 1 and the support block 3.

Referring to fig. 2 and 3, in order to facilitate the work staff to fill the concrete into the slump testing cylinder 2, a funnel 21 is detachably provided at the top end of the slump testing cylinder 2. The pipe diameter of the bottom of funnel 21 is less than the pipe diameter on the top of slump test section of thick bamboo 2 for during the bottom of funnel 21 can stretch into slump test section of thick bamboo 2, effectively reduced the condition that the concrete leaked out from funnel 21 and slump test section of thick bamboo 2 junction.

Referring to fig. 1, in order to facilitate the staff to obtain the slump data more intuitively, scales are arranged on the supporting block 3, so that the staff can determine the height of the highest point of the concrete by observing the scales on the supporting block 3 after the slump testing cylinder 2 is lifted.

Referring to fig. 3, in order to make the worker more stable when filling concrete into the slump test cylinder 2, the slump test cylinder 2 is not likely to slip. Offer on base 1's the upper surface with slump test section of thick bamboo 2 bottom surface assorted constant head tank 13 for slump test section of thick bamboo 2 can block in constant head tank 13, thereby has carried on spacingly to slump test section of thick bamboo 2.

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 slump apparatus which characterized in that: including base (1) and slump test section of thick bamboo (2) of setting on base (1), the vertical fixation has two supporting shoes (3) on base (1), two supporting shoe (3) symmetry sets up in the both sides of slump test section of thick bamboo (2), storage tank (31) have been seted up on supporting shoe (3), it is provided with lead screw (4) to rotate in storage tank (31), it is provided with movable block (5) to slide on lead screw (4), fixed connecting rod (6) that are provided with between movable block (5) and the slump test section of thick bamboo (2), be provided with on base (1) and drive lead screw (4) pivoted drive assembly.

2. The concrete slump tester according to claim 1, wherein: the screw driver is characterized in that a cavity (11) is formed in the base (1), the driving assembly comprises a worm wheel (7) fixed at the bottom end of the screw rod (4) and a worm (8) rotatably arranged in the cavity (11), and the worm (8) is meshed with the worm wheel (7).

3. The concrete slump tester according to claim 2, wherein: one end of the worm (8) penetrates through the base (1) and extends outwards, and a rocking handle (81) is fixed at one end, located outside the base (1), of the worm (8).

4. The concrete slump tester according to claim 1, wherein: the accommodating groove (31) is a T-shaped groove, and the moving block (5) is a T-shaped block matched with the accommodating groove (31).

5. The concrete slump tester according to claim 1, wherein: and reinforcing ribs (12) are fixedly arranged between the supporting block (3) and the base (1).

6. The concrete slump tester according to claim 1, wherein: the top end of the slump test cylinder (2) is detachably provided with a funnel (21).

7. The concrete slump tester according to claim 1, wherein: the supporting block (3) is provided with scales.

8. The concrete slump tester according to claim 1, wherein: and the base (1) is provided with a positioning groove (13) matched with the bottom surface of the slump test cylinder (2).