CN204495680U - Concrete flowability proving installation - Google Patents

Abstract

The utility model relates to a concrete fluidity testing device, comprising a chassis, a slump cylinder positioning mechanism, a slump cylinder and a measuring mechanism, the chassis is used to support the slump cylinder and concrete mixture samples, and fix the slump The slump cylinder positioning mechanism; the slump cylinder positioning mechanism is composed of a fixed frame, a movable frame and a handle, and is used for fixing and lifting the slump cylinder; the measuring mechanism is used for measuring the slump and expansion of the concrete mixture. The concrete fluidity testing device of the utility model can accurately test fluidity evaluation indexes such as slump, slump expansion time (T ₅₀ ), and slump expansion of fresh concrete with fluidity requirements, and it saves manpower and is easy to operate. At the same time, it has the characteristics of reasonable design, simple structure, accurate testing, environmental protection and high efficiency, and is easy to promote and implement.

Description

Concrete fluidity test device

technical field

The utility model relates to a concrete fluidity test device, which belongs to the technical field of construction engineering test detection.

Background technique

Concrete is the most widely used building material in modern construction engineering. The workability (or workability) of concrete mixture is to ensure that the concrete mixture is convenient for construction operations (mixing, transportation, pouring, compaction) and can be obtained The important performance of a concrete structure with uniform and dense quality reflects the ability of the concrete mixture to flow easily under the action of its own weight or the vibration of construction machinery, and depends on the consistency of the mixture. Workability is the basic performance that must be controlled in the process of concrete preparation, and it includes three indicators of fluidity, cohesion and water retention (for high-performance concrete, it should also include plasticity, ease of modification, filling, pumpability and stability, etc.). Since the cohesion and water retention are difficult to test directly, in practice only the fluidity of the concrete mixture is tested, supplemented by the observation of its cohesion and water retention, and then its workability is comprehensively evaluated according to the measurement and observation results.

In order to test the fluidity of concrete mixtures, a variety of devices have been developed in the world, such as slump cylinders, flow testers, remodeling testers, German flow test benches, and Kelly balls. Pressure tester, Nasser K-probe, etc. The slump cylinder has been widely used all over the world because of its simple device and clear indicators.

The existing concrete slump cylinder is composed of a slump cylinder body, a pedal and a handle, and generally has two sizes of a standard slump cylinder and an enlarged slump cylinder. The standard slump cylinder is suitable for the fluidity test of the concrete mixture whose aggregate particle size is not more than 50mm, while the enlarged slump cylinder is suitable for the fluidity test of the concrete mixture with the maximum particle size of 50mm~80mm. The diameter of the bottom surface of the standard slump cylinder is 200mm, the diameter of the top surface is 100mm, and the height is 300mm; the size of the enlarged slump cylinder is 300mm in diameter at the bottom surface, 150mm in diameter at the top surface, and 450mm in height.

There are many inconveniences when using the current slump cylinder to test the fluidity of concrete mixture. One is that at least two people must be able to complete the test work. One person steps on the pedal of the slump cylinder to fix it on the test base plate, and the other person loads the material. The second is that the personnel who step on the slump cylinder must use both hands and feet. When filling the concrete mixture with high fluidity, if there is a slight carelessness, the cement slurry will spill on the feet and dirty the pants. The operator may be injured when the tool is loaded, and the slump cylinder must be kept stable on the bottom plate during the entire operation process. If the step is not firm, the mixture will flow out from the bottom of the cylinder. The third is that it is often difficult to ensure the verticality in the process of lifting the slump cylinder, so that the concrete mixture sample is subjected to lateral and torsional forces when it is dropped, which causes errors in the test results; and in the test slump A ruler, a slump cylinder and a benchmark are often needed for slump. The verticality of the ruler and the levelness of the benchmark will affect the accuracy of the test results. Improvement speed and the influence of subjective judgment error. It can be seen that although the existing concrete slump test method has a simple device, it is inconvenient to operate, low in test efficiency and unhygienic, and difficult to guarantee test accuracy.

Utility model content

The utility model aims at the deficiencies and defects of the prior art, and provides a testing device which is reasonable in design, simple in structure, convenient in operation and capable of accurately testing the fluidity of concrete mixture.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a concrete fluidity testing device, including a chassis, a slump cylinder positioning mechanism, a slump cylinder and a measuring mechanism. The chassis is mainly composed of a circular expansion panel and an annular support, which are used to support the slump cylinder and the concrete mixture sample, and fix the slump cylinder positioning mechanism. The slump cylinder positioning mechanism is composed of a fixed frame, a movable frame and a handle, and is used for fixing and lifting the slump cylinder. The slump cylinder is composed of a slump cylinder body, a handle and a chuck, and is used for accommodating concrete mixture samples. The measuring mechanism is composed of a measuring ruler formed by the pressing rod of the slump cylinder positioning mechanism and the loading rod, and completes the measurement of the slump and expansion of the concrete mixture. The slump cylinder positioning mechanism is rollingly connected with the bearing-like structure formed by the fixed frame and the chassis. The slump cylinder positioning mechanism has a stable structure in the vertical direction and can rotate 360 degrees around the chassis in the horizontal direction. The movable frame is slidingly connected with the handle, and the movable frame can be driven to move up and down along the fixed frame by lifting or pressing down the handle. The slump cylinder can be fixed on the movable frame through the handle and the locking chuck. Lifting the handle can fix the slump cylinder at the center of the expansion panel of the chassis for filling the mixture. Pressing down the handle can drive the slump through the movable frame. The slump cylinder is lifted at a constant speed to make the concrete mixture sample flow out evenly, forming slump or slump expansion. The measuring mechanism includes a loading rod and a pressing rod, and the loading rod and the pressing rod are marked with scale lines to form a slump measuring ruler and an expansion measuring ruler respectively. The slump of the concrete mixture sample can be measured by moving the slump measuring ruler of the loading rod up and down relative to the main crossbar of the fixed frame, and the concrete mixture can be measured by rotating the extension measuring ruler of the compression rod around the chassis The slump spread of the sample.

In the above structure, the fixed frame includes a main cross bar, left and right support bars and a turntable. The upper ends of the left and right struts are fixed on the left and right ends of the main cross bar, and the lower ends are symmetrically fixed on the outside of the circular turntable. The movable frame includes a secondary cross bar, a left and right lifting rod, a chuck, a pressing rod and a left and right sleeve. The two sides of the chuck are fixedly connected to the compression rod, and the other side of the compression rod is fixedly connected to the sleeve. The sleeve is set on the periphery of the left and right poles, and the two sleeves respectively form a sliding pair with the left and right poles sleeved therein. The lower ends of the left and right lifting rods are respectively fixed on the upper surfaces of the left and right pressing rods, the upper ends are fixed on the left and right ends of the secondary cross bar, the upper center of the secondary cross bar is fixedly connected to the loading rod, and the upper end of the loading rod passes through the center of the main cross bar to open The sliding guide hole is connected to the middle part of the handle, and the sliding guide hole and the loading rod form a sliding pair. One end of the upper surface of the main cross bar of the fixed frame is provided with a fixed hinge ear, and the main cross bar is hinged to one end of the handle through the hinge ear.

As a preferred solution, the upper end of the loading rod is provided with a U-shaped groove, and the middle part of the handle is provided with a sliding groove along its length direction. The middle part of the handle provided with the sliding groove can be sleeved in the U-shaped groove at the end of the loading rod. The sliding groove and the U-shaped groove at the upper end of the loading rod are connected by a rotating shaft, and the sliding groove of the handle and the rotating shaft form a sliding pair.

In the above structure, the loading rod is provided with a slump scale line, and the loading rod and the movable frame form a slump measuring mechanism. The compression rods are respectively provided with an expansion degree scale line and an expansion measurement foot code that can slide on the compression rod, and the expansion degree scale line, the expansion measurement foot code and the two compression rods form a concrete slump expansion degree measurement mechanism.

In the above structure, one side of the loading rod is provided with a locking groove, and the upper end of the sliding guide hole in the center of the main crossbar and the side corresponding to the locking groove of the loading rod are fitted with a cylindrical loading rod locking pin through a sleeve. The end of the loading rod locking pin close to the loading rod locking groove is slightly thicker, and a spring is arranged between the end and the sleeve fixing the loading rod locking pin, and the loading rod locking pin on the other side of the sleeve is There is a steering clip and a pull ring, and the main crossbar is also provided with a clip that matches the locking pin steering clip. Pulling the pull ring and rotating the locking pin of the loading rod by 90 degrees along the axis can make the two sets The chuck is released, and the end of the locking pin of the loading rod is pressed into the locking groove of the loading rod under the tension of the spring, so that the loading rod is fixed on the main cross bar, thereby realizing the positioning of the slump cylinder .

In the above structure, the expansion panel of the chassis is a circular plate, and the lower edge is provided with an annular support, and an arc-shaped groove is opened on the outer surface of the annular support to form an inner ring of a bearing-like structure. The inner wall of the ring-shaped turntable of the frame is also provided with arc-shaped grooves to form the outer ring of the bearing-like structure. The grooves on the support and the turntable form the raceway of the bearing-like structure, and several balls are matched and installed in the raceway to form a bearing-like structure. The rolling body of the bearing-like structure is provided with a cage separating the balls in the raceway, and the turntable can rotate around the support to form a rotating pair. The upper surface of the expansion panel is provided with expansion degree marking lines of different diameters, and the inner side of the support is provided with reinforcing ribs.

In the above structure, the slump cylinder includes a slump cylinder and a funnel-shaped feeding hopper communicated with the inner cavity of the slump cylinder, the feed hopper is arranged at the upper opening of the slump cylinder; the slump Two vertical handles and locking chucks are fixed on the outer wall of the slump cylinder. The two locking chucks are located directly below the two handles. Symmetrically distributed, the slump cylinder is set in the chuck and fixed on the compression rod through the locking chuck, handle and locking pin; there are two symmetrical openings on the inside of the chuck for passing through Slot for the handle.

As another solution, the slump cylinder positioning mechanism consists of a handle, a connecting frame, a slide groove, a rotating shaft, a loading rod locking pin, a loading rod sleeve, a loading rod, a slump cylinder locking pin, a slump cylinder It is composed of chuck, slump cylinder compression rod, slump cylinder compression rod sleeve, loading arm, loading arm sleeve, main column, fastening screw and expansion plate. The lower end of the main column is vertically fixed on one side edge of the expansion board, the compression rod is slidably connected with the main column through the compression rod sleeve, and the compression rod sleeve is provided with a compression rod fastening screw on one side , the compression rod can be fixed on the main column, the compression rod is fixedly connected with the slump cylinder chuck and the loading rod respectively, and the loading rod is slidingly connected with the loading arm through the loading rod sleeve, so The loading arm is slidably connected to the main column through the loading arm sleeve, the upper end of the loading rod is slidably connected to the handle through the rotating shaft and the sliding groove, and the handle is slidably connected to the main column through the connecting frame. The connecting frame can rotate in a horizontal 360-degree direction around the head of the main column. The upper and lower parts of one side of the loading rod are provided with two locking grooves, and the heights of the two locking grooves correspond to the positions where the locking pin can just clamp the slump cylinder and completely release the slump cylinder, respectively. The loading arm sleeve can only rotate in a horizontal 360-degree direction, and cannot move vertically. Raising or lowering the handle can fix the slump cylinder or disengage the expansion plate to realize the test operation of charging and slumping fluidity.

In the above structure, the chassis is only composed of expansion plates, and the expansion plates are consolidated into a whole through the main column and the slump cylinder positioning mechanism, and the two cannot have relative rotation in the horizontal direction.

As another solution, the measuring mechanism is independent from the slump cylinder positioning mechanism, and the measuring mechanism consists of a measuring arm sleeve, a measuring arm, a measuring rod cap, a measuring rod fastening screw, a measuring rod sleeve, a slump measuring It is composed of a rod, an expansion measuring code and an expansion measuring ruler. The slump measuring rod and the extension measuring ruler are fixedly connected as a whole, and the slump measuring rod is slidably connected with the measuring arm through the measuring rod sleeve, and the upper end of the slump measuring rod is provided with a measuring rod cap to measure A rod cap prevents the slump measuring rod from coming out of the measuring rod sleeve. The measuring rod sleeve is provided with a measuring rod fastening screw, which is convenient for testing the slump. The extension degree measuring ruler is provided with an extension measurement code, which is convenient for testing the extension degree. The measuring arm is set on the outer surface of the main column through the measuring arm sleeve. The upper and lower ends of the measuring arm sleeve are respectively provided with limit pins that limit its movement up and down along the main column. The measuring arm sleeve can only Make horizontal 360-degree rotations, and cannot do vertical movements.

The beneficial effects of the utility model are:

1. The setting of the slump cylinder chuck in the concrete fluidity test device of the present invention can fasten the slump cylinder on the chassis, avoiding manual operation and the disadvantages caused at the same time;

2. The expansion degree measuring ruler of the measuring mechanism of the utility model can rotate 360 degrees around the central axis of the chassis, so as to facilitate the measurement of the expansion degree value of the concrete mixture in different directions;

3. The positioning mechanism of the slump cylinder of the utility model is conducive to the vertical and uniform lifting of the slump cylinder, ensures the free fall of the concrete mixture sample, avoids the error caused by the interference of the artificial lateral force on the test result, and improves the measurement accuracy. The accuracy; and because the operation of manually fixing the slump cylinder is eliminated, only one person can conveniently complete the test and obtain accurate test results, which overcomes the problem that one person cannot independently complete the measurement in the prior art.

4. In summary, the concrete fluidity testing device of the present utility model can accurately test fluidity evaluation indicators such as slump, slump expansion time (T ₅₀ ), and slump expansion of fresh concrete with fluidity requirements, and saves It is manpower and easy to operate. At the same time, it has the characteristics of reasonable design, simple structure, accurate testing, environmental protection and high efficiency, and is easier to promote and implement.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of A-A in Fig. 1;

Fig. 3 is the expansion mark line of the expansion panel of the present utility model;

Fig. 4 is a schematic structural view of Embodiment 2 of the present utility model.

Detailed ways

The utility model will be described in further detail below according to the accompanying drawings and embodiments, but the utility model is not limited to the following embodiments.

Embodiment 1: See Figures 1, 2 and 3, the meanings of the symbols in the figures are: sliding groove 1, rotating shaft 2, loading rod 3, main cross bar 4, slump scale line 5, secondary cross bar 6, Left elevating rod 7, left support rod 8, expansion measuring foot code 9, sleeve 11, slump expansion panel 12, ball 13, turntable 14, support 15, handle 16, loading rod locking groove 17, loading rod lock Tightening pin 18, right lifting rod 19, right support rod 20, feeding hopper 21, handle 22, chuck 23, slump cylinder locking pin 24, pressing rod 25, locking chuck 26, slump cylinder 27.

Composed of sliding groove 1, rotating shaft 2, main crossbar 4, secondary crossbar 6, left elevating rod 7, left support rod 8, expansion measuring foot code 9, sleeve 11, turntable 14, handle 16, loading rod locking pin 18. The right elevating rod 19, the right support rod 20, the chuck 23, the slump cylinder locking pin 24 and the slump cylinder pressing rod 25 constitute the slump cylinder positioning mechanism, which is used to place the slump cylinder 27 is fixed on the expansion panel 12 and realizes the test of slump and slump fluidity. The lower ends of the left strut 8 and the right strut 20 are fixed to both sides of the turntable 14 symmetrically at 90 degrees, and the left strut and the right strut are symmetrically arranged with respect to the turntable axis. The upper ends of the left strut and the right strut are respectively fixed on the left and right ends of the main cross bar 4, and the turntable, the left strut, the right strut and the main cross bar form the fixed frame of the slump cylinder positioning mechanism, It provides reaction force when positioning the slump cylinder for the movable frame. Loading rod 3, secondary cross bar 6, left elevating rod 7, right elevating rod 19, sleeve 11, chuck 23, slump cylinder locking pin 24, hold-down rod 25 etc. constitute the slump cylinder positioning mechanism The movable frame can compress and fix the slump cylinder 27 on the slump expansion panel 12 with the support provided by the fixed frame, and at the same time, the slump cylinder can be lifted at a uniform speed driven by the handle 16 . The two ends of the pressing rod are provided with vertical sleeves 11, and the sleeves 11 on the left and right sides are respectively sleeved on the left pole 8 and the right pole 20, and the sleeves can ensure the slump of the pressing rod 25. Levelness when lifting. The pressing rod is fixedly connected with the left elevating rod 7 and the right elevating rod 19, the upper ends of the left and right elevating rods are fixedly connected with the secondary crossbar 6, the secondary crossbar is fixedly connected with the lower end of the loading rod, and the loading rod Through the sliding guide hole provided in the middle of the main crossbar, the U-shaped groove at the upper end blocks the sliding groove 1 in the middle of the handle 16, and the sliding groove in the middle of the handle is opened along its length direction. The U-shaped groove of the loading rod and the sliding groove in the middle of the handle are connected through the rotating shaft 2 fixed on the U-shaped groove. The sliding groove and the rotating shaft form a sliding pair, and the length of the sliding groove can ensure that the loading rod is vertically up and down. No bending moment is generated during the movement, and the rotating shaft and the sliding groove of the handle (which may adopt an oblong hole) adopt a gap fit, which further ensures that the loading rod is not affected by the bending moment applied by the handle when it moves vertically up and down. The loading bar is provided with a slump scale line 5 to form a slump measuring ruler, and the relative displacement with the main cross bar can measure the slump of the concrete mixture. A locking groove 17 is provided on one side of the loading rod, and a loading rod locking pin 18 is provided on the side of the main crossbar close to the locking groove of the loading rod for fixing the loading rod on the main crossbar. The locking pin 18 of the loading rod is a spring-type locking pin, which is convenient for loosening and fixing the loading rod. Both sides of the chuck 23 are symmetrically fixedly connected to the pressing rods 25, and the inside of the chuck is symmetrically provided with two slots for passing through the slump cylinder handle 22; the slump cylinder body 27 is set in the chuck , and fixed in the chuck by locking chuck 26, handle 22 and locking pin 24, wherein the slump cylinder locking pin 24 is also a spring type locking pin. The compression rod is provided with an expansion measurement foot code 9 and an expansion scale line 10 to form a slump measuring ruler for measuring the slump expansion or J-ring expansion of the concrete mixture. One end of the upper surface of the main crossbar is fixed with a hinged ear, and the main crossbar 4 is hinged to one end of the handle 16 through the hinged ear. The handle drives the loading rod and the movable frame to move up and down to realize the operation of fixing or lifting the slump cylinder 27 .

The chassis consists of a slump expansion panel 12, a ball 13, a turntable 14 and an annular support 15 arranged on the edge of the lower surface of the expansion panel for supporting the slump cylinder and the concrete mixture. The slump expansion panel 12 is fixedly connected with the annular support 15 as a whole, the support is circular, the inner wall is provided with grooves, the turntable is also circular, the outer wall is provided with grooves, and the support It has the same arc as the groove of the turntable, and the balls 13 are arranged inside to form a bearing-like structure for rolling connection. The turntable is fixedly connected with the left and right poles, and the turntable can drive the slump cylinder positioning mechanism to rotate freely in a horizontal 360-degree direction around the slump expansion panel, which is convenient for testing the slump expansion of the concrete mixture Spend. The edge of the slump expansion panel is provided with a drip edge, which is convenient for rinsing the panel surface with water without polluting the balls and the grooves of the support and the turntable.

The slump cylinder is formed by the feeding hopper 21, the handle 22, the locking chuck 26 and the slump cylinder body 27. The feeding hopper is funnel-shaped, that is, the feeding opening is larger than the diameter of the bottom surface of the slump cylinder of the utility model, so as to prevent the dripping of the highly fluid concrete mixture. The handle 22 is vertically fixed on the outer wall of the slump cylinder 27 to facilitate penetration into the groove of the slump cylinder chuck 23 . The locking chuck 26 is used for positioning the slump cylinder and fixing it in the slump cylinder chuck 23 .

In order to facilitate the test of the expansion value of the concrete mixture, marking lines of Φ500, Φ600, Φ700, Φ800 and Φ900 can be engraved on the surface of the slump expansion panel.

Embodiment 2: See Figure 4, the meanings represented by the symbols in the figure are: handle 1, connecting frame 2, sliding groove 3, bearing shaft 4, loading rod locking pin 5, loading rod sleeve 6, loading rod 7, feeding Hopper 8, handle 9, slump cylinder locking pin 10, slump cylinder locking chuck 11, slump cylinder chuck 12, slump cylinder body 13, slump cylinder compression rod 14, slump cylinder Drop cylinder compression rod sleeve 15, loading arm 16, loading arm sleeve 17, measuring arm sleeve 18, measuring arm 19, measuring rod cap 20, measuring rod fastening screw 21, measuring rod sleeve 22, main column 23, the slump measuring rod 24, the slump cylinder pressing rod fastening screw 25, the expansion measuring code 26, the expansion measuring ruler 27, and the expansion plate 28.

Embodiment 2 is a simplification of Embodiment 1. The difference is that the concrete fluidity testing device of this embodiment consists of a handle 1, a connecting frame 2, a slide groove 3, a bearing shaft 4, a loading rod locking pin 5, and a loading rod sleeve. Cylinder 6, loading rod 7, feeding hopper 8, handle 9, slump cylinder locking pin 10, slump cylinder locking chuck 11, slump cylinder chuck 12, slump cylinder body 13, slump Degree cylinder compression rod 14, slump cylinder compression rod sleeve 15, loading arm 16, loading arm sleeve 17, measuring arm sleeve 18, measuring arm 19, measuring rod cap 20, measuring rod fastening screw 21, Measuring rod sleeve 22, main column 23, slump measuring rod 24, slump cylinder pressing rod fastening screw 25, expansion measure taking tour code 26, expansion measuring ruler 27 and expansion plate 28 are formed. Different from Embodiment 1, only a part of the slump cylinder positioning mechanism of this embodiment is reserved, and the chassis structure is also simplified, consisting of only one expansion plate 28, and the fluidity measurement mechanism is slightly changed. The structure of the slump cylinder is the same as that of the embodiment A complete agreement.

The slump cylinder positioning mechanism of this embodiment consists of a handle 1, a connecting frame 2, a sliding groove 3, a rotating shaft 4, a loading rod locking pin 5, a loading rod sleeve 6, a loading rod 7, and a slump cylinder locking pin 10. , slump cylinder chuck 12, slump cylinder compression rod 14, slump cylinder compression rod sleeve 15, loading arm 16, loading arm sleeve 17, main column 23, fastening screw 25 and expansion plate 28 and so on constitute. The lower end of the main column 23 is vertically fixed on one side edge of the expansion plate 28, and the compression rod 14 is slidably connected with the main column 23 through the compression rod sleeve 15, and one side of the compression rod sleeve is provided with a compression rod for fastening. Screw 25, described compression rod can be fixed on described main column, and described compression rod is fixedly connected with slump cylinder chuck 12 and loading rod 7 respectively, and described loading rod connects with loading rod sleeve 6 and The loading arm 16 is slidably connected, the loading arm is slidably connected with the main column through the loading arm sleeve 17, the upper end of the loading rod is slidably connected with the handle 1 through the rotating shaft 4 and the sliding groove 3, and the handle is connected by connecting The frame 2 is slidably connected to the main column, and the connecting frame can rotate in a horizontal 360-degree direction around the head of the main column. The upper and lower parts of one side of the loading rod are provided with two locking grooves, and the heights of the two locking grooves correspond to the positions where the locking pin 10 can just clamp the slump cylinder and completely release the slump cylinder, respectively. The loading arm sleeve can only rotate in a horizontal 360° direction, and cannot move vertically. Lifting or dropping the handle 1 can fix the slump cylinder 13 or disengage the expansion plate 28, so as to realize the test operation of charging and slumping fluidity.

The chassis of this embodiment is constituted only by the expansion board 28 . It is different from the first embodiment in that the expansion plate is consolidated into a whole through the main column 23 and the slump cylinder positioning mechanism, and the two cannot have relative rotation in the horizontal direction.

The slump cylinder of this embodiment is composed of a feeding hopper 8 , a handle 9 , a slump cylinder locking chuck 11 and a slump cylinder body 13 . Its connection structure and working principle with the chuck are the same as those in Embodiment 1.

The difference between this embodiment and the first embodiment is that the measuring mechanism is independent from the slump cylinder positioning mechanism. Rod sleeve 22, slump measuring rod 24, expansion measure get travel code 26 and expansion degree measuring ruler 27 and form. The slump measuring rod 24 and the extension measuring ruler 27 are fixedly connected as a whole, and the slump measuring rod is slidably connected with the measuring arm 19 through the measuring rod sleeve 22, and the upper end of the slump measuring rod is provided with a measuring rod. Rod cap 20, the measuring rod cap can prevent the slump measuring rod from coming out of the measuring rod sleeve. The measuring rod sleeve is provided with a measuring rod fastening screw 21, which is convenient for testing slump. The expansion measuring ruler is provided with an expansion measurement code 26, which is convenient for testing the expansion. The measuring arm 19 is sleeved on the outer surface of the main column 23 through the measuring arm sleeve 18, and the upper and lower ends of the measuring arm sleeve are respectively provided with limit pins that limit its movement up and down along the main column. The cylinder can only rotate 360 degrees horizontally, and cannot move vertically.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Numerous changes, modifications, substitutions and variations. For example, in order to make the lifting speed of the slump cylinder more uniform, the handle can be changed to a hand wheel or a motor. In addition, by changing the size or quantity of the main frame and the chassis, or changing the specific structure of the components, such as the chassis in the first embodiment Changing the rolling connection into a sliding connection, changing the single main column in embodiment two into long and short double main columns, or changing the expansion measuring ruler into a folding structure, etc. can constitute a specific embodiment of the present utility model, which will not be described here. Describe in detail.

Claims (10)

1. a concrete flowability proving installation, comprise chassis, slump cylinder detent mechanism, slump cylinder and measuring mechanism, it is characterized in that: described chassis is made up of circular enlargement panel and annular ledge, for support slump cylinder and concrete mix sample, fixing slump cylinder detent mechanism; Described slump cylinder detent mechanism is made up of fixed frame, movable frame and handle, for fixing and lifting slump cylinder; The bearing shape structure that described slump cylinder detent mechanism is formed by fixed frame and chassis is connected, and slump cylinder detent mechanism is vertically to having stable structure, and level is to the rotation can carrying out 360 degree around chassis; Described movable frame and handle are slidably connected, and mention or depress handle to drive movable frame to move up and down along fixed frame; Described slump cylinder is made up of slump cylindrical shell, handle and dop, for holding concrete mix sample; Described slump cylinder is fixed on movable frame by handle and chuck, mentioning handle can make slump cylinder be fixed on the expansion face plate center on chassis to load mixture, pressure handle drives slump cylinder at the uniform velocity to promote by movable frame and concrete mix sample is evenly flowed out, forms the expansion that collapses or collapse; The dip stick that described measuring mechanism is formed by compressor arm and the load bar of slump cylinder detent mechanism forms, and completes the measurement to concrete mix slump and divergence; Described measuring mechanism comprises load bar and compressor arm, and load bar and compressor arm are marked with scale mark and form respectively slump dip stick and divergence dip stick; Move up and down relative to the main cross bar of fixed frame the slump can measuring concrete mix sample by load bar slump dip stick, the slump flow test of concrete mix sample can be measured by the rotation of compressor arm divergence dip stick around chassis.

2. concrete flowability proving installation according to claim 1, it is characterized in that: the expansion panel on described chassis is a plectane, the bottom surface edge of plectane is provided with annular ledge, described annular ledge lateral surface offers the inner ring that circular groove forms bearing shape structure, the annular rotary table madial wall of described fixed frame is also provided with the outer ring that circular groove forms bearing shape structure, the groove that described bearing and rotating disk are offered defines the raceway of bearing shape structure, in raceway, the several ball of Matching installation forms the rolling body of bearing shape structure, the retainer separated by ball is provided with in raceway, described rotating disk can rotate around bearing and form revolute pair, described expansion panel upper surface is provided with the divergence tag line of different-diameter, is provided with stiffening rib inside bearing.

3. concrete flowability proving installation according to claim 1, it is characterized in that: the fixed frame of described slump cylinder detent mechanism comprises main cross bar, left and right pole and rotating disk, pole upper end, left and right is separately fixed at the two ends of main cross bar, and lower end symmetry is fixed on the outside of round turntable; The movable frame of described slump cylinder detent mechanism comprises time cross bar, left and right elevating lever, chuck, compressor arm and left and right sleeve; Described chuck both sides are fixedly connected with compressor arm, and compressor arm opposite side is fixedly connected with sleeve, and sleeve set is peripheral left and right pole, and two sleeves form sliding pair with suit left and right pole within it respectively; Elevating lever lower end, described left and right is separately fixed at the upper surface of two compressor arms in left and right, upper end is fixed on the two ends of time cross bar, secondary cross bar central upper portion is fixedly connected with load bar, the slide-and-guide hole that load bar upper end is offered through main cross bar center is also connected in the middle part of handle, and described slide-and-guide hole and described load bar form sliding pair; Main cross bar upper surface one end of described fixed frame is provided with the ear that is fixedly hinged, described main cross bar by described hinged ear and handle one end hinged.

4. according to concrete flowability proving installation according to claim 1, it is characterized in that: described load bar upper end is provided with U-type groove, sliding tray is offered along its length in the middle part of described handle, can be sleeved in the U-type groove of load bar end in the middle part of the handle being provided with sliding tray, in the middle part of handle, sliding tray is connected by rotating shaft with the U-type groove of load bar upper end, and the sliding tray of described handle and described rotating shaft form sliding pair.

5. according to the concrete flowability proving installation described in claim 1 or 4, it is characterized in that: described load bar is provided with slump scale mark, load bar and movable frame define slump measuring mechanism, described compressor arm is respectively equipped with divergence scale mark and measures subscript with the divergence can slided on compressor arm, divergence scale mark, divergence measure subscript and two compressor arms form Control Measures for Concrete Slump divergence measuring mechanism.

6. the concrete flowability proving installation according to claim 1 or 4, it is characterized in that: described load bar side offers locking slot, columned load bar locking pin is equipped with by jacket casing in the side corresponding to load bar locking slot, upper end, slide-and-guide hole at main cross bar center, described load bar locking pin is slightly thick near the termination of load bar locking slot, spring is provided with between the sleeve of described termination and fixing load bar locking pin, the load bar locking bearing pin of sleeve opposite side is provided with and turns to dop and draw ring, described main cross bar is also provided with the dop turning to dop to match with locking pin, pull draw ring and make load bar locking pin two supporting dops can be made to unclamp along axle 90-degree rotation, by the locking slot of the termination of load bar locking pin press-in load bar under the tension force of spring, thus make load bar be fixed on main cross bar, the location to slump cylinder can be realized thus.

7. concrete flowability proving installation according to claim 1, is characterized in that: described slump cylinder detent mechanism is made up of handle, link, sliding tray, rotating shaft, load bar locking pin, load bar sleeve, load bar, slump cylinder locking pin, slump cylinder chuck, slump cylinder compressor arm, slump cylinder compressor arm sleeve, loading arm, loading arm sleeve, head tree, trip bolt and expansion board, described head tree lower end is vertically fixed on the edge, side of expansion board, described compressor arm is slidably connected by compressor arm sleeve and head tree, described compressor arm sleeve side is provided with compressor arm trip bolt, can described compressor arm be fixed on head tree, described compressor arm is fixedly connected with load bar with slump cylinder chuck respectively, described load bar is slidably connected by load bar sleeve and loading arm, described loading arm is slidably connected by loading arm sleeve and described head tree, described load bar upper end is slidably connected by rotating shaft and sliding tray and handle, described handle is slidably connected by link and described head tree, described link can carry out the rotation in horizontal 360-degree direction around described head tree column cap, upper and lower, described load bar side is provided with two locking slots, and the height of two locking slots corresponds respectively to locking pin and just can clamp slump cylinder and the position being totally released slump cylinder, described loading arm sleeve can only do the rotation in horizontal 360-degree direction, can not do the motion of Vertical dimension, and rising or fall handle can fix slump cylindrical shell or throw off expansion board, realizes the test operation of charging and slump flow.

8. concrete flowability proving installation according to claim 7, is characterized in that: described chassis is made up of expansion board, and described expansion board is an entirety by head tree and slump cylinder detent mechanism consolidation.

9. the concrete flowability proving installation according to claim 1 or 7, is characterized in that: described measuring mechanism by gage beam sleeve, gage beam, measurement pole cap, sounding rod trip bolt, sounding rod sleeve, slump sounding rod, divergence measures rider and divergence dip stick is formed; Slump sounding rod and divergence dip stick are fixedly connected as an entirety, described slump sounding rod is slidably connected by sounding rod sleeve and gage beam, described slump sounding rod upper end is provided with measurement pole cap, measures pole cap and can prevent the slump sounding rod from deviating from from described sounding rod sleeve; Described sounding rod sleeve is provided with sounding rod trip bolt, is convenient to test the slump; Described divergence dip stick is provided with divergence and measures rider, is convenient to test divergence; Gage beam passes through gage beam sleeve set on head tree outside surface, described gage beam sleeve upper/lower terminal is respectively equipped with the spacer pin limiting it and move up and down along head tree, this gage beam sleeve can only do the rotation in horizontal 360-degree direction, can not do the motion of Vertical dimension.

10. concrete flowability proving installation according to claim 1, is characterized in that: the funnel-form feeding hopper that described slump cylinder comprises slump cylindrical shell and is communicated with slump cylinder lumen, and described feeding hopper is located at slump cylindrical shell place suitable for reading; Described slump cylinder body outer wall is fixed with two handles and chuck vertically arranged, two chucks are positioned at immediately below two handles, two handles and chuck symmetrical about slump cylinder body axis, described slump cylindrical shell is sleeved in chuck, and is fixed on compressor arm by chuck, handle and locking pin; Inside described chuck, symmetry offers two for the draw-in groove through handle.