CN212275763U

CN212275763U - Concrete collapse degree measuring device

Info

Publication number: CN212275763U
Application number: CN202021085153.8U
Authority: CN
Inventors: 谢槟槟; 陈士军; 李栋伟; 安令石; 章鸿飞; 蒋潇伊
Original assignee: East China Institute of Technology
Current assignee: East China Institute of Technology
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-01-01
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a concrete slump measuring device, comprising a trolley, a slump cylinder, a fixed positioning plate, a movable positioning plate and a measuring ruler assembly. One side of the upper end face of the base is provided with a pulley groove, and the other side is provided with two parallel grooves. The guide rail and the measuring ruler assembly include a vertical ruler, a level and a spring. The upper section of the vertical ruler is provided with a movable slot and a limit post, the limit post is located in the center of the movable slot, and the spring and the level are sequentially sleeved on the limit post from bottom to top. The level ruler is movably plugged into the movable groove, a pulley is installed at the bottom of the vertical ruler, the pulley is placed in the pulley groove, the fixed positioning plate is vertically fixed on one end of the two guide rails, and the mobile positioning plate is slid across the two guide rails. There are two symmetrical limit pieces and a movable locating block, and the movable locating plate is integrally provided with a fixed locating block opposite to the movable locating block. The device can perform a concrete slump measurement experiment simply and efficiently, and the device is stable and reliable, and can obtain reliable measurement results.

Description

Concrete collapse degree measuring device

Technical Field

The utility model belongs to the technical field of the concrete slump measurement, concretely relates to concrete slump measuring device.

Background

Slump refers to the workability of concrete, and particularly ensures the normal operation of construction, wherein the workability includes the water retention property, slump flow property and cohesiveness of the concrete. Workability refers to the property of whether the concrete is easy to construct and operate and is uniform and compact, and is a very comprehensive property including fluidity, cohesiveness and water retention. The influence on the workability mainly comprises the water consumption, the water-cement ratio, the sand rate, the cement variety, the aggregate condition, the time, the temperature, the additive and the like. Slump test method: filling concrete into a horn-shaped slump bucket for three times, uniformly impacting 25 parts of concrete along the wall of the bucket from outside to inside after each filling by using a tamping hammer, leveling after tamping, vertically pulling up the bucket, and avoiding impacting the concrete in the pulling-up process so as not to influence measurement data.

But there is more problem in current concrete slump detector: during measurement, the reliability of detection is difficult to guarantee, and especially in a construction site, a smooth ground is difficult to clean and search, so that the construction requirement is difficult to meet; when the collapse degree is measured on a construction site, more measuring tools are usually required to be carried, and the measuring tools are inconvenient to move and difficult to meet the requirement of efficient measurement; during measurement, the device is inconvenient to adjust, the reliability of detection and the stability of the device are difficult to ensure, and night work cannot be carried out; the operation is generally completed by two persons, wherein one person needs to fix the position of the slump cone all the time, the other person carries out other operations such as concrete pouring, the operation is more complicated, and the concrete can often pollute an operator for fixing the slump cone in the concrete pouring process; the measured concrete is easy to pollute the ground on site, is difficult to clean and wastes much time.

SUMMERY OF THE UTILITY MODEL

The utility model provides a concrete slump measuring device to solve the problem of proposing in the above-mentioned background art. The technical scheme of the utility model is realized like this:

a concrete slump measuring device comprises a trolley, a slump cone, a fixed positioning plate, a movable positioning plate and a measuring scale assembly, wherein the trolley comprises a base, one side of the upper end face of the base is provided with a pulley groove, the other side of the upper end face of the base is provided with two parallel guide rails, the guide rails are vertical to the pulley groove, the measuring scale assembly comprises a vertical ruler, a horizontal ruler and a spring, the upper section of the vertical ruler is provided with a movable groove and a limiting column, the limiting column is positioned in the center of the movable groove, the spring and the horizontal ruler are sequentially sleeved on the limiting column from bottom to top, the horizontal ruler is movably inserted in the movable groove, the bottom of the vertical ruler is provided with a pulley, the pulley is arranged in the pulley groove, the fixed positioning plate is vertically fixed at one end of the two guide rails, the movable positioning plate slides on the two guide rails in a bridging manner, the fixed positioning plate is provided with two symmetrical, two the locating part is located the activity locating piece both sides, the integral type is equipped with the fixed positioning piece relative with the activity locating piece on the removal locating plate, the removal locating plate both ends are connected with a bolt respectively, bolt bottom butt is in the guide rail up end, slump section of thick bamboo joint is in between activity locating piece and the fixed positioning piece.

The utility model discloses an among the concrete slump measuring device, the activity groove includes circular recess and square groove, and two square groove symmetries are located the circular recess both sides, spacing post and spring all are located the circular recess, level bar one end is equipped with a circular lantern ring, the circular lantern ring cup joints on the spacing post, circular lantern ring both ends are pegged graft respectively at two square inslots.

The utility model discloses an among the concrete slump measuring device, the locating part includes limiting plate, pivot and stop nut, the pivot is fixed on the fixed positioning board, the pivot upper end is equipped with one section screw thread, the limiting plate rotates and cup joints the pivot lower extreme, the stop nut screw thread is twisted and is connect in the pivot to sticis in on the limiting plate.

The utility model discloses an among the concrete slump measuring device, the guide rail is the T style of calligraphy, it is equipped with a T word groove respectively to remove the locating plate both ends, the guide rail peg graft in T word inslot.

The utility model discloses an among the concrete slump measuring device, movable positioning piece top is equipped with a handle.

The utility model discloses an among the concrete slump measuring device, pulley groove one end opening, the other end seals.

The utility model discloses an among the concrete slump measuring device, the handcart still includes handle and universal wheel, the handle is located base one side, four the universal wheel is located the base bottom.

Implement the utility model discloses a this kind of concrete slump measuring device has following beneficial effect:

(1) the concrete collapse degree measuring equipment is arranged on the trolley, so that the equipment can be conveniently moved at any time, experimenters can conveniently and rapidly carry out collapse degree experiments on construction sites, the measured concrete can be pushed to a specified place of construction waste on the trolley and poured into the trolley, the ground is not polluted, the ground is not required to be cleaned, the workload is reduced, the reliability of a detection reference can be ensured, and the detection error is reduced;

(2) the level of the device can be adjusted up and down on the vertical ruler, and the height of the level can be adjusted according to the height of the collapse cylinder, so that various measurement requirements are met;

(3) the movable positioning plates of the device can adjust the horizontal position on the base, and the distance between the two positioning plates is adjusted according to the size of the slump constant barrel, so that the purpose of effectively positioning the slump constant barrels with different sizes is achieved;

(4) the limiting piece of the device can movably connect the movable positioning block, so that the movable positioning block can be conveniently placed in and taken out, and the placing, clamping and taking out of the slump constant barrel can be realized; the limiting plate can rotate around the rotating shaft by 360 degrees, and the limiting nut can tightly press the limiting plate which is transferred to the movable positioning block, so that the purpose of limiting the vertical movement of the movable positioning block is achieved.

Drawings

FIG. 1 is a front view of the concrete slump measuring device of the present invention;

FIG. 2 is a top view of the concrete slump measuring device of the present invention before measurement;

FIG. 3 is a top view of the concrete slump measuring device of the present invention during measurement;

FIG. 4 is a partial floating view of the gauge assembly of the present invention;

fig. 5 is a cross-sectional view of the measuring scale assembly of the present invention;

fig. 6 is a right side view of the movable positioning plate of the present invention connected to the guide rail;

fig. 7 is a sectional view of the movable positioning block of the present invention;

fig. 8 is an enlarged view of a in fig. 3.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 8, a concrete slump measuring device comprises a trolley 1, a slump cone 2, a fixed positioning plate 3, a movable positioning plate 4 and a measuring rule component 5, wherein the trolley 1 comprises a base 11, the trolley 1 further comprises a handle 12 and universal wheels 13, the handle 12 is arranged on one side of the base 11, the four universal wheels 13 are arranged at the bottom of the base 11, one side of the upper end surface of the base 11 is provided with a pulley groove 111, the other side of the upper end surface of the base 11 is provided with two parallel guide rails 112, one end of the pulley groove 111 is open, the other end of the pulley groove is closed, the guide rails 112 are vertical relative to the pulley groove 111, the measuring rule component 5 comprises a vertical rule 51, a horizontal rule 52 and a spring 53, the upper section of the vertical rule 51 is provided with a movable groove 511 and a limiting column 512, the limiting column 512 is positioned in the center of the movable groove 511, the spring 53 and the horizontal rule 52 are sequentially sleeved on the limiting column 512 from bottom to top, two square grooves 5112 are symmetrically arranged on two sides of the circular groove 5111, the limiting column 512 and the spring 53 are both positioned in the circular groove 5111, one end of the horizontal ruler 52 is provided with a circular lantern ring 521, the circular lantern ring 521 is sleeved on the limiting column 512, two ends of the circular lantern ring 521 are respectively inserted into the two square grooves 5112, the bottom of the vertical ruler 51 is provided with a pulley 6, the pulley 6 is arranged in the pulley groove 111, the fixed positioning plate 3 is vertically fixed at one end of the two guide rails 112, the movable positioning plate 4 is in sliding and bridging connection with the two guide rails 112, the guide rails 112 are in a T shape, two ends of the movable positioning plate 4 are respectively provided with a T-shaped groove, and the guide rails. The movable positioning plate 4 can freely slide on the guide rail 112 through the guide rail 112 and the T-shaped groove, the fixed positioning plate 3 is provided with two symmetrical limiting parts 31 and a movable positioning block 32, the top of the movable positioning block 32 is provided with a handle 321, the two limiting parts 31 are positioned on two sides of the movable positioning block 32, the movable positioning plate 4 is integrally provided with a fixed positioning block 41 opposite to the movable positioning block 32, two ends of the movable positioning plate 4 are respectively connected with a bolt 7, the bottom of the bolt 7 is abutted against the upper end surface of the guide rail 112, and the slump cone 2 is clamped between the movable positioning block 32 and the fixed positioning block 41. The concrete collapse degree measuring equipment is arranged on the trolley 1, so that the equipment can be conveniently moved at any time, experimenters can conveniently and rapidly carry out collapse degree experiments on construction sites, the measured concrete can be pushed to a specified place of construction waste on the trolley and poured into the trolley, the ground is not polluted, the ground is not required to be cleaned, the workload is reduced, the reliability of a detection reference can be ensured, and the detection error is reduced; the horizontal ruler 52 of the device can be adjusted up and down on the vertical ruler 51, and the height of the horizontal ruler 52 can be adjusted according to the height of the collapse cylinder 2, so that various measurement requirements are met; the device's removal locating plate 4 can carry out horizontal position control on base 11, adjusts the distance between two locating plates according to the size of the section of thick bamboo 2 that collapses to reach the purpose of effectively fixing a position the section of thick bamboo that collapses of not unidimensional.

The limiting member 31 includes a limiting plate 311, a rotating shaft 312 and a limiting nut 313, the rotating shaft 312 is fixed on the fixed positioning plate 3, a section of screw thread is arranged at the upper end of the rotating shaft 312, the limiting plate 311 is rotatably sleeved at the lower end of the rotating shaft 312, and the limiting nut 313 is screwed on the rotating shaft 312 and tightly pressed on the limiting plate 311. The limiting piece 31 can movably connect the movable positioning block 32, so that the movable positioning block 32 can be conveniently placed in and taken out, and the collapse cylinder 2 can be placed in, clamped and taken out; the limiting plate 311 can rotate around the rotating shaft 312 in 360 degrees, and the limiting nut 313 can press the limiting plate 311 which is transferred to the movable positioning block 32, so that the movement of the movable positioning block 32 in the up-and-down direction is limited.

As shown in fig. 2, the pulley 6 at the bottom of the measuring scale assembly 5 is loaded into the pulley groove 111, the measuring scale assembly 5 is pushed to one side, the slump cone 2 is placed between the fixed positioning plate 3 and the movable positioning plate 4, the movable positioning plate 32 falls into the fixed positioning plate 3, the position of the slump cone 2 is adjusted, the slump cone 2 is just clamped into the movable positioning plate 32, the limiting plate 311 is pushed to the upper end of the movable positioning plate 32, the positioning plate 4 is pushed to a specific position, the fixed positioning plate 41 is clamped on the other side of the slump cone 2, the bolt 7 is screwed down for limiting, the slump cone 2 is clamped between the movable positioning plate 32 and the fixed positioning plate 41, the concrete to be measured is loaded into the slump cone three times and is vibrated uniformly, after the loading is finished, the movable positioning plate 4 is moved away, the limiting member 31 is pushed, the movable positioning plate 32 is lifted away first, the slump cone is lifted up slowly, and the concrete is lifted up slowly until the slump is finished, as shown in fig. 3, push away dipperstick subassembly 5 to the intermediate position to push down level bar 52, press to the concrete top, read out vertical ruler 51's scale reading, measure the degree of collapse and finish, loose hand, the level bar will bounce under the elasticity of the inside spring of vertical ruler and resume, this experiment convenient and fast can single independent completion.

The present invention is not limited to the embodiments, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete slump measuring device, characterized in that, comprising a trolley (1), a slump cylinder (2), a fixed positioning plate (3), a mobile positioning plate (4) and a measuring ruler assembly (5), the The trolley (1) comprises a base (11), one side of the upper end face of the base (11) is provided with a pulley groove (111), and the other side is provided with two parallel guide rails (112), the guide rails (112) are opposite to the pulley grooves (111) Vertical, the measuring ruler assembly (5) includes a vertical ruler (51), a level (52) and a spring (53), and the upper section of the vertical ruler (51) is provided with a movable slot (511) and a limit post (512), the limit post (512) is located in the center of the movable slot (511), and the spring (53) and the level (52) are sequentially sleeved on the limit post (512) from bottom to top , the level (52) is movably inserted into the movable groove (511), a pulley (6) is installed at the bottom of the vertical ruler (51), and the pulley (6) is placed in the pulley groove (111) ), the fixed positioning plate (3) is vertically fixed on one end of the two guide rails (112), the movable positioning plate (4) slides across the two guide rails (112), and the fixed positioning plate ( 3) There are two symmetrical limiting members (31) and a movable positioning block (32), the two limiting members (31) are located on both sides of the movable positioning block (32), and the movable positioning plate (4) The upper part is integrally provided with a fixed positioning block (41) opposite to the movable positioning block (32), two ends of the movable positioning plate (4) are respectively connected with a bolt (7), and the bottom of the bolt (7) abuts on the On the upper end surface of the guide rail (112), the slump cylinder (2) is clamped between the movable positioning block (32) and the fixed positioning block (41).

2 . The concrete slump measurement device according to claim 1 , wherein the movable groove ( 511 ) comprises a circular groove ( 5111 ) and a square groove ( 5112 ), and the two square grooves ( 5112 ) are symmetrically arranged in the On both sides of the circular groove (5111), the limiting post (512) and the spring (53) are located in the circular groove (5111), and a circular collar ( 521), the circular collar (521) is sleeved on the limiting column (512), and the two ends of the circular collar (521) are respectively inserted into the two square grooves (5112).

3. The concrete slump measuring device according to claim 1, characterized in that the limiting member (31) comprises a limiting plate (311), a rotating shaft (312) and a limiting nut (313), the rotating shaft (312) is fixed on the fixed positioning plate (3), the upper end of the rotating shaft (312) is provided with a thread, the limiting plate (311) is rotatably sleeved on the lower end of the rotating shaft (312), the limiting The position nut (313) is screwed on the rotating shaft (312) and pressed against the limit plate (311).

4 . The concrete slump measuring device according to claim 1 , wherein the guide rail ( 112 ) is in a T-shape, and two ends of the moving positioning plate ( 4 ) are respectively provided with a T-shaped groove, and the guide rail ( 112 ) is 4 . (112) is inserted into the T-shaped slot.

5 . The concrete slump measuring device according to claim 1 , wherein a handle ( 321 ) is provided on the top of the movable positioning block ( 32 ). 6 .

6. The concrete slump measuring device according to claim 1, wherein one end of the pulley groove (111) is open and the other end is sealed.

7. The concrete slump measurement device according to claim 1, characterized in that, the trolley (1) further comprises a handle (12) and a universal wheel (13), and the handle (12) is provided on the base (11) On one side, the four universal wheels (13) are arranged at the bottom of the base (11).