A device for quickly detecting properties of high-grade concrete mixtures

Abstract

The present invention belongs to the technical field of detection devices, and specifically relates to a device for quickly detecting the properties of high-grade concrete mixtures. The device comprises a detection platform, a slump cone, and a ramming and lifting mechanism. The slump cone is placed on the detection platform. The ramming and lifting mechanism comprises a connecting rod, a turntable, a lifting mechanism, a ramming mechanism, and a lifting mechanism. The turntable is fixedly connected to the detection platform, the upper end of the lifting mechanism is fixedly connected to the middle part of the connecting rod, and the lower end of the lifting mechanism is fixedly connected to the turntable. The ramming mechanism and the lifting mechanism are respectively arranged at both ends of the connecting rod. The ramming mechanism can replace manual spiral ramming to ensure the density and uniformity of the concrete mixture. The lifting mechanism can replace manual lifting and ensure vertical lifting to avoid affecting the detection results.

Description

Technical Field

[0001] The invention belongs to the technical field of detection devices, and in particular relates to a device for quickly detecting the performance of a high-grade concrete mixture. Background Art

[0002] High-grade concrete mix performance rapid testing devices are designed to quickly and easily evaluate the workability and physical and mechanical properties of high-strength concrete (e.g., C50 and above). These devices help engineers and construction workers quickly obtain relevant concrete performance data before or during concrete pouring, ensuring concrete quality and construction efficiency. Due to the high strength requirements of high-grade concrete, special attention must be paid to indicators such as compressive strength, workability, and cohesiveness.

[0003] Traditional slumpmeters are mostly operated manually. When it comes to lifting the slumpmeter to observe the workability of concrete and measure its slump value, this step is manual. Lifting the slumpmeter too quickly or too slowly can affect the test results. Furthermore, the use of ramming is crucial to ensuring the density and uniformity of the concrete mix. This ramming process is labor-intensive and difficult to ensure the proper ramming depth. Summary of the Invention

[0004] In response to the above technical problems, the present invention provides a device for quickly detecting the properties of high-grade concrete mixtures. The device can perform ramming operations according to a spiral line, reducing the impact of manual operations on detection data.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A device for rapidly testing the properties of a high-grade concrete mixture comprises a testing platform, a slump cone, and a ramming and lifting mechanism. The slump cone is placed on the testing platform. The ramming and lifting mechanism comprises a connecting rod, a rotating platform, a lifting mechanism, a ramming mechanism, and a lifting mechanism. The rotating platform is fixedly connected to the testing platform, the upper end of the lifting mechanism is fixedly connected to the middle portion of the connecting rod, and the lower end of the lifting mechanism is fixedly connected to the rotating platform. The ramming mechanism and the lifting mechanism are respectively arranged at both ends of the connecting rod.

[0007] The tamping mechanism includes a spiral guide plate and a guide rod. The spiral guide plate is provided with a spiral groove. The spiral guide plate is fixedly connected to the connecting rod through a support rod. The middle part of the spiral guide plate is rotatably connected to the driving rod. The spiral guide plate is provided with a driving mechanism that drives the driving rod to rotate.

[0008] The upper end of the driving rod is fixedly connected to a fixed plate, and the middle part of the driving rod is fixedly connected to a sliding rod, and the sliding rod is provided with a sliding groove that cooperates with the middle part of the guide rod; the upper end of the guide rod is ball-hinged with the fixed plate, and the lower end of the guide rod is located in the spiral groove and can move along the spiral groove; the lower end of the guide rod is fixedly connected to a retractable first tamping rod.

[0009] It also includes a second tamping rod, which is a telescopic structure and is fixedly connected to the middle part of the spiral guide plate.

[0010] The first tamping rod and the second tamping rod have the same structure, both comprising a telescopic cylinder and a connecting sleeve; the connecting sleeve is threadedly connected to the telescopic end of the telescopic cylinder.

[0011] The tamping mechanism further comprises a limiting pressure rod, which is slidably connected to the connecting rod, and a return spring is provided between the limiting pressure rod and the connecting rod; the lower end of the limiting pressure rod can abut against the slump cone.

[0012] The lower end of the limiting pressure rod is provided with an inserting rod, and the slump cone is provided with an inserting hole.

[0013] The lifting mechanism includes a lifting rod and a lifting plate, the two ends of the lifting rod are fixedly connected to the connecting rod and the lifting plate respectively; a clamping groove is provided on the lifting plate; and a clamping plate connected to the clamping groove is provided on the upper end of the slump cone.

[0014] It also includes a scraping mechanism, which includes a fixed frame and a scraper. The fixed frame is fixedly connected to the fixed part of the lifting mechanism, and the scraper is slidably connected to the fixed frame. A compression spring is provided between the scraper and the fixed frame.

[0015] The testing platform is provided with a discharge port.

[0016] The driving mechanism includes a driving motor and a driving gear. The housing of the driving motor is fixedly connected to the spiral guide plate, and the driving gear is fixedly connected to the driving rod. A transmission gear meshing with the driving gear is fixedly connected to the output shaft of the driving motor.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The machine is equipped with a tamping mechanism that can replace manual spiral tamping to ensure the density and uniformity of the concrete mixture. The lifting mechanism can replace manual lifting and ensure vertical lifting to avoid affecting the test results.

[0019] A limit pressure rod is provided to avoid unnecessary shaking of the slump cone during filling. A scraping mechanism is provided to clean the surface of the test table for the next test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of one aspect of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0022] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0023] Figure 4 It is a front view of the present invention;

[0024] Figure 5 It is a structural diagram of another aspect of the present invention;

[0025] Figure 6 is a cross-sectional view of a first tamping rod of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the tamping mechanism of the present invention;

[0027] Among them: 1 is a testing table, 10 is a discharge port, 2 is a slump cone, 3 is a tamping and lifting mechanism, 4 is a connecting rod, 5 is a turntable, 6 is a lifting mechanism, 7 is a tamping mechanism, 70 is a spiral guide plate, 71 is a guide rod, 72 is a spiral groove, 73 is a support rod, 74 is a drive rod, 75 is a drive mechanism, 750 is a drive motor, 751 is a drive gear, 752 is a transmission gear, 76 is a fixed plate, 77 is a slide rod, 78 is a first tamping rod, 79 is a second tamping rod, 710 is a telescopic cylinder, 711 is a connecting sleeve, 712 is a limit pressure rod, 713 is a return spring, 714 is a tamping rod, 715 is a socket, 8 is a lifting mechanism, 80 is a lifting rod, 81 is a lifting plate, 82 is a slot, 83 is a card plate, 9 is a scraping mechanism, 90 is a fixed frame, 91 is a scraper, and 92 is a compression spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] like Figure 1-7 As shown, a device for quickly detecting the properties of a high-grade concrete mixture includes a detection platform 1, a slump cone 2 and a ramming and lifting mechanism 3. The slump cone 2 is placed on the detection platform 1; the ramming and lifting mechanism 3 includes a connecting rod 4, a turntable 5, a lifting mechanism 6, a ramming mechanism 7 and a lifting mechanism 8.

[0030] The turntable 5 is fixedly connected to the inspection platform 1, the upper end of the lifting mechanism 6 is fixedly connected to the middle of the connecting rod 4, and the lower end of the lifting mechanism 6 is fixedly connected to the turntable 5. The lifting mechanism 6 can drive the connecting rod 4 to move up and down, and the turntable 5 can drive the lifting mechanism 6 and the connecting rod 4 to rotate, so that the tamping mechanism 7 and the lifting mechanism 8 respectively set at both ends of the connecting rod 4 also rotate accordingly.

[0031] Specifically, the turntable 5 is driven to rotate so that the tamping mechanism 7 is located above the slump cone 2, and the lifting mechanism 6 is controlled to descend to a higher height so that the tamping mechanism 7 tamps the concrete in the slump cone 2. After the tamping is completed, the turntable 5 is driven to rotate so that the lifting mechanism 8 is moved to the slump cone 2, and the slump cone 2 is lifted for inspection.

[0032] The tamping mechanism 7 includes a spiral guide plate 70 and a guide rod 71. A spiral groove 72 is provided on the spiral guide plate 70. The spiral guide plate 70 is fixedly connected to the connecting rod 4 through a support rod 73. The two ends of the support rod 73 are fixedly connected to the spiral guide plate 70 and the connecting rod 4 respectively.

[0033] A drive rod 74 is rotatably connected to the middle portion of the spiral guide plate 70, which is equipped with a drive mechanism 75. A fixed plate 76 is fixedly connected to the upper end of the drive rod 74. A slide rod 77 is fixedly connected to the middle portion of the drive rod 74. Slide rod 77 has a slot that mates with the middle portion of the guide rod 71. The middle portion of the guide rod 71 is located within the slot, with a gap between them. The upper end of the guide rod 71 is ball-jointed to the fixed plate 76. The lower end of the guide rod 71 is located within a spiral groove 72, allowing it to move along the spiral groove. A gap exists between the guide rod 71 and the spiral groove.

[0034] A retractable first tamping rod 78 is fixedly connected to the lower end of the guide rod 71. Tamping is performed by extending and retracting the first tamping rod 78. The drive mechanism 75 rotates the drive rod 74, causing the guide rod 71 to move along the spiral groove, changing the tamping position. This device enables spiral tamping. After a single tamping operation, the drive mechanism 75 drives the guide rod 71 along the spiral groove a predetermined distance before the next tamping operation. This process continues until the guide rod 71 rotates from the outside of the spiral groove to the inside (i.e., tamping proceeds from the outside toward the center of the slump cone 2 in a spiral direction).

[0035] The specific operation process is as follows: First, place the slump cone 2 on the testing table 1. Then, drive the turntable 5 to rotate, positioning the tamping mechanism 7 above the slump cone 2. Then, use a small shovel to evenly load the required concrete sample into the slump cone 2 in three layers. After the first layer is loaded, the lifting mechanism 6 is controlled to descend, allowing the tamping mechanism 7 to tamp the concrete in the slump cone 2. Then, the second layer is loaded, and the lifting mechanism 6 is raised to a certain height, allowing the tamping mechanism 7 to tamp the concrete in the slump cone 2. Finally, the third layer (the top layer) is loaded, and the lifting mechanism 6 is raised to a certain height, allowing the tamping mechanism 7 to tamp the concrete in the slump cone 2. After tamping the top layer, scrape off the excess concrete and smooth it with a trowel.

[0036] After scraping off the excess concrete, the turntable 5 is driven to rotate, so that the lifting mechanism 8 is transferred to the slump cone 2, and the slump cone 2 is lifted for testing; the specific test is to measure the height difference between the two using a ruler in the prior art.

[0037] Furthermore, in order to improve the tamping effect, vertical tamping is performed on the center; a second tamping rod 79 is also included. The second tamping rod 79 is a telescopic structure, which is fixedly connected to the middle of the spiral guide plate 70.

[0038] Furthermore, the first tamping rod 78 and the second tamping rod 79 share the same structure, each comprising a telescopic cylinder 710 and a connecting sleeve 711. The connecting sleeve 711 is threadedly connected to the telescopic end (piston rod) of the telescopic cylinder 710. The telescopic cylinder 710 (cylinder body) in the first tamping rod 78 is fixedly connected to the lower end of the guide rod 71; the telescopic cylinder 710 (cylinder body) in the second tamping rod 79 is fixedly connected to the middle portion of the spiral guide plate 70. The provision of the connecting sleeve 711 allows for interchangeable sleeves 711 of varying diameters as needed.

[0039] Furthermore, the tamping mechanism 7 further includes a limiting pressure rod 712, which is slidably connected to the connecting rod 4. A return spring 713 is provided between the limiting pressure rod 712 and the connecting rod 4. The return spring 713 is sleeved outside the limiting pressure rod 712, and the two ends of the return spring 713 respectively abut against the connecting rod 4 and the limiting pressure rod 712. Limiting protrusions are provided at both ends of the limiting pressure rod 712. The limiting protrusion at the upper end is used to limit the limiting pressure rod 712 to prevent it from detaching from the connecting rod 4, and the limiting protrusion at the lower end is used to abut against the return spring 713.

[0040] The lower end of the limiting pressure rod 712 can be against the slump cone 2. By this mechanism, the slump cone 2 can be fixed during the ramming process to avoid shaking.

[0041] The tamping mechanism 7 is driven to rotate by the turntable 5, so that it is located above the slump cone 2. When it is controlled to descend by the lifting mechanism 6, the lower end of the limiting pressure rod 712 can abut against the slump cone 2, and the return spring 713 generates elastic potential energy, thereby pressing the slump cone 2 and fixing the slump cone 2. When the lifting mechanism 6 is fully raised, there is a gap between the lower end of the limiting pressure rod 712 and the slump cone 2.

[0042] Furthermore, an insertion rod 714 is provided at the lower end of the limiting pressure rod 712, and a socket 715 is provided on the slump cone 2; when the descent is controlled by the lifting mechanism 6, the lower end of the limiting pressure rod 712 will be able to resist the slump cone 2; and the insertion rod 714 will be inserted into the socket 715, further playing the role of fixing the slump cone 2.

[0043] Furthermore, the lifting mechanism 8 preferably adopts the following structural arrangement, which includes a lifting rod 80 and a lifting plate 81, the two ends of the lifting rod 80 are fixedly connected to the connecting rod 4 and the lifting plate 81 respectively; a card slot 82 is provided on the lifting plate 81; and a card plate 83 connected to the card slot 82 is provided at the upper end of the slump cone 2.

[0044] After the tamping is completed, the turntable 5 is driven to rotate, so that the lifting mechanism 8 rotates to the slump cone 2, so that the clamping plate 83 is located in the clamping groove 82, and then the lifting mechanism 6 is raised to lift the slump cone 2.

[0045] Furthermore, the scraping mechanism 9 includes a fixed frame 90 and a scraper 91. The fixed frame 90 is fixedly connected to the fixed portion of the lifting mechanism 6. The scraper 91 is slidably connected to the fixed frame 90. A compression spring 92 is provided between the scraper 91 and the fixed frame 90. The two ends of the compression spring 92 are respectively fixedly connected to the scraper 91 and the fixed frame 90. The lower end of the scraper 91 contacts the detection table 1. At this time, the compression spring 92 is in a compressed state.

[0046] A discharge port 10 is provided on the testing platform 1. After the testing is completed, the scraper 91 is driven to rotate by the rotary table 5, and the concrete on the testing platform 1 can be scraped off by the scraper 91.

[0047] The lifting mechanism 6 can be any one of an electric telescopic cylinder 710, a pneumatic cylinder, or an oil cylinder. Taking the electric telescopic cylinder 710 as an example, its cylinder body is fixedly connected to the turntable 5, and its piston rod is fixedly connected to the connecting rod 4. Specifically, the fixed frame 90 in the scraping mechanism 9 is fixedly connected to its cylinder body.

[0048] Furthermore, the drive mechanism 75 includes a drive motor 750 and a drive gear 751. The housing of the drive motor 750 is fixedly connected to the spiral guide plate 70, and the drive gear 751 is fixedly connected to the drive rod 74. A transmission gear 752 is fixedly connected to the output shaft of the drive motor 750 and meshes with the drive gear 751. When the output shaft of the drive motor 750 rotates, the drive rod 74 can be driven to rotate accordingly.

[0049] Only the preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A device for rapid detection of properties of high-grade concrete mixtures, characterized by: The invention comprises a testing platform (1), a slump cone (2) and a ramming and lifting mechanism (3), wherein the slump cone (2) is placed on the testing platform (1); the ramming and lifting mechanism (3) comprises a connecting rod (4), a rotating platform (5), a lifting mechanism (6), a ramming mechanism (7) and a lifting mechanism (8); the rotating platform (5) is fixedly connected to the testing platform (1), the upper end of the lifting mechanism (6) is fixedly connected to the middle part of the connecting rod (4), the lower end of the lifting mechanism (6) is fixedly connected to the rotating platform (5), and the ramming mechanism (7) and the lifting mechanism (8) are respectively arranged at both ends of the connecting rod (4); The tamping mechanism (7) comprises a spiral guide plate (70) and a guide rod (71); the spiral guide plate (70) is provided with a spiral groove (72); the spiral guide plate (70) is fixedly connected to the connecting rod (4) via a support rod (73); a driving rod (74) is rotatably connected to the middle of the spiral guide plate (70); and a driving mechanism (75) for driving the driving rod (74) to rotate is provided on the spiral guide plate (70); The upper end of the driving rod (74) is fixedly connected to a fixing plate (76), and the middle part of the driving rod (74) is fixedly connected to a sliding rod (77), and the sliding rod (77) is provided with a sliding groove that matches the middle part of the guide rod (71); the upper end of the guide rod (71) and the fixing plate (76) are spherically hinged, and the lower end of the guide rod (71) is located in the spiral groove (72) and can move along the spiral groove; the lower end of the guide rod (71) is fixedly connected to a retractable first tamping rod (78); The tamping mechanism (7) further comprises a limiting pressure rod (712), the limiting pressure rod (712) being slidably connected to the connecting rod (4), and a return spring (713) being provided between the limiting pressure rod (712) and the connecting rod (4); the lower end of the limiting pressure rod (712) can abut against the slump cone (2); an insertion rod (714) is provided at the lower end of the limiting pressure rod (712), and a socket (715) is provided on the slump cone (2); The lifting mechanism (8) comprises a lifting rod (80) and a lifting plate (81), wherein both ends of the lifting rod (80) are fixedly connected to the connecting rod (4) and the lifting plate (81), respectively; a clamping groove (82) is provided on the lifting plate (81); and a clamping plate (83) connected to the clamping groove (82) is provided at the upper end of the slump cone (2).

2. A high-grade concrete mixture performance rapid detection device according to claim 1, characterized in that: It also includes a second tamping rod (79), which is a telescopic structure and is fixedly connected to the middle part of the spiral guide plate (70).

3. A high-grade concrete mixture performance rapid detection device according to claim 2, characterized in that: The first tamping rod (78) and the second tamping rod (79) have the same structure, both comprising a telescopic cylinder (710) and a connecting sleeve (711); the connecting sleeve (711) is threadedly connected to the telescopic end of the telescopic cylinder (710).

4. The high-grade concrete mixture performance rapid detection device according to claim 1, characterized in that: The scraping mechanism (9) further comprises a scraping mechanism (9), the scraping mechanism (9) comprising a fixed frame (90) and a scraper (91), the fixed frame (90) being fixedly connected to the fixed portion of the lifting mechanism (6), the scraper (91) being slidably connected to the fixed frame (90), and a compression spring (92) being provided between the scraper (91) and the fixed frame (90).

5. A high-grade concrete mixture performance rapid detection device according to claim 4, characterized in that: The detection platform (1) is provided with a discharge port (10).

6. The high-grade concrete mixture performance rapid detection device according to claim 1, characterized in that: The driving mechanism (75) comprises a driving motor (750) and a driving gear (751); the housing of the driving motor (750) is fixedly connected to the spiral guide plate (70); the driving gear (751) is fixedly connected to the driving rod (74); and a transmission gear (752) meshing with the driving gear (751) is fixedly connected to the output shaft of the driving motor (750).

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