Measuring equipment for rheological property of premixed concrete mixture

Abstract

The utility model discloses a measuring device for the rheological property of a premixed concrete mixture, which relates to the technical field of concrete mixtures, and comprises a fixing plate and a slump barrel, the two sides of the top of the slump barrel are fixedly connected with fixing blocks, and the surface of each fixing block is provided with a connecting groove. A fixing mechanism used for fixing the bottom plate is arranged in the middle of the fixing plate, and lifting mechanisms used for vertically lifting the slump barrel are arranged on the two sides of the top of the fixing plate. By means of the fixing mechanism, the bottom plate is detached from the fixing plate through the handle, and the effect that the bottom plate is convenient to clean is achieved. According to the utility model, through the lifting mechanism, after manual tamping, the lifting rod is started, the connecting block is lifted, and the connecting block can drive the slump barrel to be vertically lifted, so that the lifting time of the slump barrel is controlled, the phenomenon of possible deviation during manual lifting is avoided, and the influence of human factors on a measurement result is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixtures, in particular to a measuring device for the flow variation of premixed concrete mixtures. Background Art

[0002] The workability of concrete mixture is also called the workability of concrete. It is a comprehensive technical performance, including fluidity, cohesion and water retention. The rheology of concrete refers to the deformation and flow properties of concrete under external force. Deformation refers to the sudden increase of slump, and the flow property refers to the change of concrete fluidity. Usually, the slump cone is used to measure the freshly mixed concrete that is relatively thin and plastic or fluid under the action of its own weight. By pulling up the bucket, the concrete collapses due to its own weight. The height of the highest point of the concrete after collapse is subtracted from the height of the bucket. It is called slump. The larger the slump value of the concrete mixture, the better its fluidity. However, after the slump cone instrument completes the measurement, the concrete will remain on the bottom plate, which is too troublesome to clean the bottom plate. At the same time, most of the slump barrels are lifted manually, but when lifting manually, it is impossible to control the lifting time and vertical lifting, which affects the measurement results.

[0003] Based on this, a device for measuring the flow rheology of a ready-mixed concrete mixture is now provided, which can eliminate the drawbacks of the existing devices. Utility Model Content

[0004] The utility model aims to provide a measuring device for the flow deformation of a ready-mixed concrete mixture, so as to solve the problems in the background art that the cleaning of the bottom plate is troublesome and the slump bucket may be offset when it is manually lifted, resulting in damage to the concrete and affecting the measurement result.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A measuring device for the flow deformation of a ready-mixed concrete mixture comprises a fixed plate and a slump bucket, wherein fixed blocks are fixedly connected to both sides of the top of the slump bucket, a connection groove is provided on the surface of the fixed block, a fixing mechanism for fixing a bottom plate is provided in the middle of the fixed plate, and lifting mechanisms for vertically lifting the slump bucket are provided on both sides of the top of the fixed plate.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional scheme: the fixing mechanism includes a groove, a spring groove, a spring, a pin, a base plate, a baffle, a handle and a slot, a groove is provided in the middle top of the fixing plate, a spring groove is provided on one side of the bottom of the groove, one end of the spring is fixedly connected to the spring groove and the other end is fixedly connected to the pin, the pin is slidably arranged in the spring groove, the inner wall of the groove is slidably connected to the base plate, the baffle is fixedly connected around the top of the base plate, the handle is fixedly connected to the front end of the base plate, a slot is provided on one side of the bottom of the base plate, and the slot cooperates with the pin.

[0009] In an optional solution, the inner wall size of the groove matches the outer wall size of the bottom plate.

[0010] In an optional solution, the diameter of the spring matches the diameter of the spring slot.

[0011] In an optional solution: a scale line is provided on the top of the bottom plate.

[0012] In an optional solution: the lifting mechanism includes a lifting rod, a connecting block and a connecting rod, the lifting rods are fixedly connected to both sides of the top of the fixed plate, the top of the lifting rod is fixedly connected to the connecting block, the top of one side of the connecting block is fixedly connected to the connecting rod, and the connecting rod cooperates with the connecting groove.

[0013] In an optional solution: a plurality of sets of rotating wheels are provided at the bottom of the fixed plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model uses a fixing mechanism to remove the bottom plate from the fixing plate through a handle, thereby achieving the effect of facilitating cleaning of the bottom plate.

[0016] 2. The utility model uses a lifting mechanism and manual tamping to start the lifting rod to lift the connecting block, which can drive the slump bucket to lift vertically, which not only controls the lifting time of the slump bucket, but also avoids the possible deviation during manual lifting, thereby achieving the effect of reducing the influence of human factors on the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the lifting mechanism structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0020] Figure 4For the utility model Figure 3 A is an enlarged schematic diagram.

[0021] Notes on the accompanying drawings: 1. fixed plate; 2. rotating wheel; 3. fixing mechanism; 301. groove; 302. spring groove; 303. spring; 304. latch; 305. bottom plate; 306. baffle; 307. handle; 308. slot; 4. scale line; 5. slump bucket; 6. fixed block; 7. connecting groove; 8. lifting mechanism; 801. lifting rod; 802. connecting block; 803. connecting rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1

[0024] In one embodiment, Figure 1 - Figure 4 As shown, a measuring device for the flow deformation of a ready-mixed concrete mixture comprises a fixed plate 1 and a slump bucket 5, wherein fixed blocks 6 are fixedly connected to both sides of the top of the slump bucket 5, and connecting grooves 7 are provided on the surfaces of the fixed blocks 6. A fixing mechanism 3 for fixing a bottom plate 305 is provided in the middle of the fixed plate 1, so that the bottom plate 305 can be fixed on the fixed plate 1, and at the same time, the bottom plate 305 can be disassembled, so as to facilitate the cleaning of the concrete on the surface of the bottom plate 305. Lifting mechanisms 8 for lifting the slump bucket 5 are provided on both sides of the top of the fixed plate 1, so as to automatically lift the slump bucket 5, control the lifting time, avoid the phenomenon of deviation that may occur when lifting manually, and reduce the influence of human factors on the measurement results.

[0025] In one embodiment, Figure 3 - Figure 4As shown, the fixing mechanism 3 includes a groove 301, a spring groove 302, a spring 303, a latch 304, a bottom plate 305, a baffle 306, a handle 307 and a groove 308. The middle top of the fixing plate 1 is provided with a groove 301, and a spring groove 302 is provided on one side of the bottom of the groove 301. One end of the spring 303 is fixedly connected to the spring groove 302 and the other end is fixedly connected to the latch 304. The latch 304 is slidably arranged in the spring groove 302. The inner wall of the groove 301 is slidably connected to the bottom plate 305. The top of the bottom plate 305 Baffles 306 are fixedly connected around to prevent the tested concrete from spilling out. A handle 307 is fixedly connected to the front end of the bottom plate 305 to facilitate taking the bottom plate 305 out of the groove 301. A slot 308 is provided on one side of the bottom of the bottom plate 305. The slot 308 cooperates with the bayonet 304. The bottom plate 305 is inserted into the groove 301, and one end of the bottom plate 305 squeezes the bayonet 304 and the spring 303. When the position is appropriate, the spring 303 is reset, and one end of the bayonet 304 is inserted into the bayonet 304, so that the bottom plate 305 is fixed to the fixed plate 1.

[0026] In one embodiment, Figure 3 As shown, the inner wall size of the groove 301 is consistent with the outer wall size of the bottom plate 305. When the bottom plate 305 slides inside the groove 301, the groove 301 can limit the sliding of the bottom plate 305 to prevent the bottom plate 305 from shaking inside the groove 301.

[0027] In one embodiment, Figure 4 As shown, the diameter of the spring 303 matches the diameter of the spring slot 302 . When the spring 303 is extended or retracted, the spring slot 302 will limit the spring 303 to prevent the spring 303 from shaking.

[0028] In one embodiment, Figure 1 As shown, a scale line 4 is provided on the top of the bottom plate 305, and the expansion degree of the concrete can be read more accurately according to the position where the concrete expansion surface covers the scale line 4.

[0029] In one embodiment, Figure 2As shown, the lifting mechanism 8 includes a lifting rod 801, a connecting block 802 and a connecting rod 803. The lifting rods 801 are fixedly connected to both sides of the top of the fixed plate 1. The top of the lifting rod 801 is fixedly connected to the connecting block 802. The top of one side of the connecting block 802 is fixedly connected to the connecting rod 803. The connecting rod 803 cooperates with the connecting groove 7. The connecting rod 803 and the connecting groove 7 are inserted together to fix the slump bucket 5 on the connecting block 802. When the slump bucket 5 is filled with concrete, the lifting rod 801 is started to lift the connecting block 802. The connecting block 802 drives the slump bucket 5 to be lifted, and then the phenomenon of concrete is observed.

[0030] Example 2

[0031] In one embodiment, Figure 1 As shown, a plurality of sets of rotating wheels 2 are provided at the bottom of the fixing plate 1, so that the equipment can be moved to a suitable working place for easy use.

[0032] Working principle: The above embodiment discloses a device for measuring the flow characteristics of ready-mixed concrete mixture, wherein, when in use, the bottom plate 305 is inserted into the groove 301, and one end of the bottom plate 305 squeezes the bayonet 304 and the spring 303. When the position is appropriate, the spring 303 is reset, and one end of the bayonet 304 is inserted into the bayonet 304, so that the bottom plate 305 is fixed to the fixed plate 1, and the connecting rod 803 is inserted into the connecting groove 7, so that the slump bucket 5 is fixed on the connecting block 802, and the slump bucket 5 is placed in the middle of the top of the bottom plate 305. Concrete is added to the slump bucket 5, and it is manually compacted, and the lifting rod 801 is started to lift the connecting block 802. The connecting block 802 can drive the slump bucket 5 to lift vertically, and the lifting time is controlled to avoid the phenomenon of deviation that may occur during manual lifting, thereby reducing the influence of human factors on the measurement results, and then observing the phenomenon of concrete, and using the measuring tool to measure the slump height of concrete, so as to The slump is obtained by lightly tapping the concrete to observe its cohesion. If the cone gradually sinks around, the cohesion is good. If the cone collapses or partially breaks, or segregation occurs, it means that the cohesion is not good. And the water retention is measured according to the degree of slurry precipitation in the fresh concrete. If the concrete mixture loses slurry and aggregates are exposed after the slump bucket 5 is lifted, or more slurry is precipitated from the bottom, it means that the water retention of this concrete mixture is poor; if there is no slurry or only a small amount of slurry is precipitated from the bottom after the slump bucket 5 is lifted, it shows that the water retention of the fresh concrete is good. After the measurement is completed, the bottom plate 305 is disassembled from the fixed plate 1 through the handle 307, so as to facilitate the cleaning of the bottom plate 305. The slump bucket 5 is pulled out from the connecting rod 803, and the slump bucket 5 can be disassembled for cleaning, so as to avoid the slump bucket 5 being used for a long time, resulting in concrete sticking inside or outside the slump bucket 5, thereby affecting the measurement effect.

[0033] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A device for measuring the rheological properties of a ready-mixed concrete mixture, comprising a fixed plate (1) and a slump bucket (5), wherein both sides of the top of the slump bucket (5) are fixedly connected with fixed blocks (6), and a connection groove (7) is provided on the surface of the fixed block (6), characterized in that: A fixing mechanism (3) for fixing the bottom plate (305) is provided in the middle of the fixing plate (1), and lifting mechanisms (8) for vertically lifting the slump bucket (5) are provided on both sides of the top of the fixing plate (1).

2. The device for measuring the rheological properties of a ready-mixed concrete mixture according to claim 1, characterized in that: The fixing mechanism (3) comprises a groove (301), a spring groove (302), a spring (303), a latch (304), a bottom plate (305), a baffle (306), a handle (307) and a latch groove (308); the middle top of the fixing plate (1) is provided with a groove (301); one side of the bottom of the groove (301) is provided with a spring groove (302); one end of the spring (303) is fixedly connected to the spring groove (302); and the other end is fixedly connected to the spring groove (302). A bayonet (304) is connected, and the bayonet (304) is slidably arranged in the spring groove (302). The inner wall of the groove (301) is slidably connected to a bottom plate (305). The top of the bottom plate (305) is fixedly connected with a baffle (306). The front end of the bottom plate (305) is fixedly connected with a handle (307). A bayonet (308) is provided on one side of the bottom of the bottom plate (305), and the bayonet (308) cooperates with the bayonet (304).

3. The device for measuring the rheological properties of a ready-mixed concrete mixture according to claim 2, characterized in that: The inner wall size of the groove (301) matches the outer wall size of the bottom plate (305).

4. The device for measuring the rheological properties of a ready-mixed concrete mixture according to claim 2, characterized in that: The diameter of the spring (303) matches the diameter of the spring slot (302).

5. The device for measuring the rheological properties of a ready-mixed concrete mixture according to claim 2, characterized in that: The top of the bottom plate (305) is provided with a scale line (4).

6. The device for measuring the rheological properties of a ready-mixed concrete mixture according to claim 1, characterized in that: The lifting mechanism (8) comprises a lifting rod (801), a connecting block (802) and a connecting rod (803); the lifting rods (801) are fixedly connected to both sides of the top of the fixed plate (1); the top of the lifting rod (801) is fixedly connected to the connecting block (802); the top of one side of the connecting block (802) is fixedly connected to the connecting rod (803); and the connecting rod (803) cooperates with the connecting groove (7).

7. The device for measuring the rheological properties of a ready-mixed concrete mixture according to claim 1, characterized in that: A plurality of groups of rotating wheels (2) are provided at the bottom of the fixed plate (1).

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