Concrete slump detection equipment for house quality identification

Abstract

The utility model discloses concrete slump detection equipment for house quality identification, which comprises a base, a first stand column is arranged on the base, a second stand column is arranged on the first stand column, the outer diameter of the second stand column is smaller than that of the first stand column, a supporting rod is arranged on the second stand column, and the center of the supporting rod is rotatably connected with a rotating rod. A rotating rod is arranged on the datum plate, a sliding shaft is vertically connected into one end of the rotating rod in a sliding mode, a handle is connected to the top end of the sliding shaft, the handle is arranged at the upper end of the rotating rod, the bottom end of the handle makes contact with the top end of the rotating rod, and a connecting frame is arranged at the bottom end of the sliding shaft. The top end of the slump barrel is used as the reference of the scraper, so that when the measuring ruler is used for measuring, the reference plate provides the accurate measuring reference for the measuring ruler, the accuracy of the scraper reference is further improved through limiting of the handle, and compared with the prior art, the accuracy of the concrete slump detection result is improved.

Description

Technical Field

[0001] This utility model relates to the field of slump testing technology, and in particular to a concrete slump testing device for building quality assessment. Background Technology

[0002] Concrete slump primarily refers to the plasticizing and pumpability properties of concrete. Factors affecting concrete slump mainly include changes in gradation, moisture content, weighing deviation of the weighing instrument, and the amount of admixtures. Cement temperature is also often overlooked. Slump refers to the workability of concrete, specifically ensuring proper construction. This includes the concrete's water retention, fluidity, and cohesiveness. The slump test method involves using a funnel-shaped slump cone with a top opening of 100mm, a bottom opening of 200mm, and a height of 300mm. Concrete is poured in three stages. After each filling, a tamping hammer is used to evenly tap the cone 25 times from the outside in, compacting the concrete and smoothing it. Then, the cone is lifted. The concrete will collapse due to its own weight. The slump is calculated by subtracting the height of the highest point of the collapsed concrete from the cone height (300mm). If the difference is 100mm, the slump is 100.

[0003] Existing concrete slump testing tools typically consist of a slump bucket and a measuring ruler. After the slump bucket is pulled out, the concrete collapses in all directions. When measuring the slump, the highest point of the collapsed concrete is located in the center, which is a certain distance from the position where the slump bucket is placed, leading to a certain deviation in the test results. Therefore, a concrete slump testing device for building quality assessment is needed to meet the requirements. Utility Model Content

[0004] The purpose of this invention is to provide a concrete slump testing device for assessing the quality of buildings, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete slump testing device for building quality assessment, comprising a base, a first column on the base, a second column on the first column, the outer diameter of the second column being smaller than that of the first column, a support rod on the second column, a rotating rod rotatably connected to the center of the support rod, a sliding shaft vertically slidably connected to one end of the rotating rod, a handle connected to the top of the sliding shaft, the handle being arranged at the upper end of the rotating rod, and the bottom end of the handle contacting the top end of the rotating rod, a connecting frame being provided at the bottom end of the sliding shaft, a slump test tube being provided at the bottom end of the connecting frame, a measuring ruler vertically slidably connected to the other end of the rotating rod, a connecting ring slidably connected to the second column, a scraper connected to one outer wall of the connecting ring, the scraper extending horizontally at the upper end face of the slump test tube, and a reference plate connected to the other end of the connecting ring, the reference plate extending horizontally at the measuring ruler.

[0006] Preferably, the bottom end of the base is threaded with several bolt pads.

[0007] Preferably, a positioning shaft is provided at the center of the upper end of the support rod, and the center part of the rotating rod is rotatably connected to the positioning shaft.

[0008] Preferably, a pin is vertically slidably connected to the rotating rod, and two insertion holes are opened on the support rod. The two insertion holes are symmetrically arranged with the positioning axis as the symmetrical point, and the pin can be inserted into the two insertion holes respectively.

[0009] Preferably, a connecting block is provided on the top end of the pin, and a spring is connected between the bottom end of the connecting block and the top end of the rotating rod.

[0010] Preferably, a limit block is provided at the top of the measuring ruler, and the limit block is arranged at the upper end of the rotating rod.

[0011] Preferably, the reference plate is T-shaped, and the plate near the measuring ruler has an annular arc structure with the connecting ring as the center, and the measuring ruler is arranged in the inner frame of the annular ring.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, the connection between the connecting ring, the scraper, and the reference plate enables the scraper to be referenced to the top of the slump bucket, thus facilitating the measurement of the measuring ruler. The reference plate provides a precise measurement reference for the measuring ruler, and the limiting effect of the handle further improves the accuracy of the scraper reference. Compared with the prior art, this invention improves the accuracy of concrete slump test results.

[0014] In this invention, the sliding of the sliding shaft within the rotating rod allows the slump bucket to be raised and lowered vertically, thus preventing the slump bucket from tilting and affecting the direction of concrete slump. Furthermore, the rotation of the rotating rod connects the slump bucket and the measuring ruler into a single unit, making slump measurement more convenient and the operation simpler. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a concrete slump testing device for building quality assessment proposed in this utility model.

[0016] Figure 2 This is a side view sectional structural diagram of a concrete slump testing device for building quality assessment proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure of the connecting ring, scraper, and reference plate of a concrete slump testing device for building quality assessment proposed in this utility model.

[0018] In the diagram: 1. Base; 2. First column; 3. Second column; 4. Support rod; 5. Rotating rod; 6. Sliding shaft; 7. Handle; 8. Connecting frame; 9. Slump bucket; 10. Measuring ruler; 11. Connecting ring; 12. Scraper; 13. Reference plate; 14. Bolt pad; 15. Positioning shaft; 16. Pin; 17. Insertion hole; 18. Connecting block; 19. Spring; 20. Limiting block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3 A concrete slump testing device for assessing building quality includes a base 1, a first column 2 mounted on the base 1, a second column 3 mounted on the first column 2, the outer diameter of the second column 3 being smaller than the outer diameter of the first column 2, a support rod 4 mounted on the second column 3, a rotating rod 5 rotatably connected to the center of the support rod 4, a sliding shaft 6 vertically slidably connected to one end of the rotating rod 5, and a handle 7 connected to the top of the sliding shaft 6. The handle 7 is positioned above the rotating rod 5, and its bottom... The end of the sliding shaft 6 is in contact with the top of the rotating rod 5. A connecting frame 8 is provided on the bottom end of the sliding shaft 6. A slump bucket 9 is provided on the bottom end of the connecting frame 8. A measuring ruler 10 is vertically slidably connected to the other end of the rotating rod 5. A connecting ring 11 is slidably connected to the second column 3. A scraper 12 is connected to one side of the outer wall of the connecting ring 11. The scraper 12 is horizontally extended and arranged at the upper end of the slump bucket 9. A reference plate 13 is connected to the other end of the connecting ring 11. The reference plate 13 is horizontally extended and arranged at the measuring ruler 10.

[0021] During testing, concrete is filled into the slump cone 9 in three stages, and vibrated after each filling. The concrete at the top of the slump cone 9 is leveled using the scraper 12. The handle 7 is pulled upwards, causing the sliding shaft 6 to lift the connecting frame 8 and the slump cone 9, causing the concrete to collapse. The rotating rod 5 is then rotated so that the measuring ruler 10 is positioned on the upper end of the base 1. During the rotation of the measuring ruler 10, the reference plate 13 rotates around the connecting ring 11, moving the measuring ruler 10 upwards until its bottom end contacts the highest point of the collapsed concrete. The bottom scale of the measuring ruler 10 is zero. When the slump bucket 9 is on the base 1, the bottom of the handle 7 is in contact with the top of the rotating rod 5. Conversely, when the bottom of the slump bucket 9 is away from the base 1, the bottom of the handle 7 is also in contact with the top of the rotating rod 5. At this time, with the scraper 12 in contact with the top of the slump bucket 9, the bottom of the reference plate 13 corresponds to the scale on the measuring ruler 10 as the slump of the concrete. Compared with the existing technology, this improves the accuracy of concrete slump detection and makes the detection operation simpler and more convenient.

[0022] Specifically, in this embodiment, a number of bolt pads 14 are threadedly connected to the bottom end of the base 1, which realizes the adjustment of the level of the base 1, ensures the level of the base 1, and prevents the direction of concrete collapse from being disturbed.

[0023] Specifically, in this embodiment, a positioning shaft 15 is provided at the upper center of the support rod 4, and the center of the rotating rod 5 is rotatably connected to the positioning shaft 15 to provide rotational positioning for the rotating rod 5.

[0024] Specifically, in this embodiment, a pin 16 is vertically slidably connected to the rotating rod 5, and two insertion holes 17 are opened on the support rod 4. The two insertion holes 17 are symmetrically arranged with the positioning shaft 15 as the symmetrical point. The pin 16 can be inserted into the two insertion holes 17 respectively. The pin 16 is inserted into the two insertion holes 17 at different positions, so as to realize the stable arrangement of the slump bucket 9 and the measuring ruler 10 on the base 1 respectively.

[0025] Specifically, in this embodiment, a connecting block 18 is provided on the top of the pin 16, and a spring 19 is connected between the bottom of the connecting block 18 and the top of the rotating rod 5. The elastic force of the spring 19 acts on the connecting block 18, so that the pin 16 can be inserted more stably into the socket 17.

[0026] Specifically, in this embodiment, a limiting block 20 is provided at the top of the measuring ruler 10. The limiting block 20 is arranged at the upper end of the rotating rod 5 to prevent the measuring ruler 10 from separating from the rotating rod 5 due to gravity.

[0027] Specifically, in this embodiment, the reference plate 13 is T-shaped, and the plate near the measuring ruler 10 has an annular arc-shaped structure with the connecting ring 11 as the center. The measuring ruler 10 is arranged in the annular inner frame. The annular arc-shaped structure of the reference plate 13 facilitates the rotation of the scraper 12 with the connecting ring 11 as the center, provides the reference plate 13 with rotatable space, prevents interference from the measuring ruler 10, and facilitates the observation of the scale on the measuring ruler 10.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A concrete slump testing device for building quality assessment, comprising a base (1), characterized in that: The base (1) is provided with a first column (2), and a second column (3) is provided on the first column (2). The outer diameter of the second column (3) is smaller than that of the first column (2). A support rod (4) is provided on the second column (3). A rotating rod (5) is rotatably connected to the center of the support rod (4). A sliding shaft (6) is vertically slidably connected to one end of the rotating rod (5). A handle (7) is connected to the top of the sliding shaft (6). The handle (7) is arranged at the upper end of the rotating rod (5), and the bottom end of the handle (7) is in contact with the top end of the rotating rod (5). A connecting frame (8) is provided at the bottom end of the shaft (6), and a slump bucket (9) is provided at the bottom end of the connecting frame (8). A measuring ruler (10) is vertically slidably connected to the other end of the rotating rod (5). A connecting ring (11) is slidably connected to the second column (3). A scraper (12) is connected to one side of the outer wall of the connecting ring (11). The scraper (12) is horizontally extended and arranged at the upper end of the slump bucket (9). A reference plate (13) is connected to the other end of the connecting ring (11). The reference plate (13) is horizontally extended and arranged at the measuring ruler (10).

2. The concrete slump testing device for building quality assessment according to claim 1, characterized in that: The base (1) has several bolt pads (14) threadedly connected to its bottom end.

3. The concrete slump testing device for building quality assessment according to claim 1, characterized in that: A positioning shaft (15) is provided at the center of the upper end of the support rod (4), and the center of the rotating rod (5) is rotatably connected to the positioning shaft (15).

4. The concrete slump testing device for building quality assessment according to claim 1, characterized in that: A pin (16) is vertically slidably connected to the rotating rod (5), and two insertion holes (17) are opened on the support rod (4). The two insertion holes (17) are symmetrically arranged with the positioning shaft (15) as the symmetrical point, and the pin (16) can be inserted into the two insertion holes (17) respectively.

5. A concrete slump testing device for building quality assessment according to claim 4, characterized in that: A connecting block (18) is provided on the top end of the pin (16), and a spring (19) is connected between the bottom end of the connecting block (18) and the top end of the rotating rod (5).

6. A concrete slump testing device for building quality assessment according to claim 1, characterized in that: A limiting block (20) is provided on the top of the measuring ruler (10), and the limiting block (20) is arranged on the upper end of the rotating rod (5).

7. A concrete slump testing device for building quality assessment according to claim 1, characterized in that: The reference plate (13) is T-shaped, and the plate near the measuring ruler (10) has an annular arc structure with the connecting ring (11) as the center. The measuring ruler (10) is arranged in the inner frame of the annular ring.

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