Rapid detection device for performance of high-grade concrete mixture

Abstract

The invention belongs to the technical field of detection devices, and particularly relates to a high-grade concrete mixture performance rapid detection device which comprises a detection table, a slump cone and an inserting and tamping lifting mechanism, and the slump cone is placed on the detection table; the inserting and tamping lifting mechanism comprises a connecting rod, a rotary table, a lifting mechanism, an inserting and tamping mechanism and a lifting mechanism; the rotary table is fixedly connected with the detection table, the upper end of the lifting mechanism is fixedly connected with the middle of the connecting rod, the lower end of the lifting mechanism is fixedly connected with the rotary table, and the inserting and tamping mechanism and the lifting mechanism are arranged at the two ends of the connecting rod respectively; and the inserting and tamping mechanism is arranged, manual work can be replaced by the inserting and tamping mechanism for spiral inserting and tamping, and the compactness and uniformity of the concrete mixture are ensured. The lifting mechanism is arranged to replace manual lifting, vertical lifting can be guaranteed, and the detection result is prevented from being affected.

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 mixture performance rapid testing device is a device for quickly and easily evaluating the working performance and physical and mechanical properties of high-strength concrete (such as C50 and above). These devices can help engineers and construction personnel quickly obtain relevant performance data of concrete before or during concrete pouring to ensure the quality of concrete and construction efficiency. Since high-grade concrete has high strength requirements, special attention should be paid to its compressive strength, workability, cohesion and other indicators.

[0003] The workflow of traditional slump testers is mostly manual. When it comes to the step of taking the slump tester upward to observe the workability of concrete and measure the slump value of concrete, this step is manual. If the speed of lifting it upward is too fast or too slow, it will affect the detection effect. Moreover, more importantly, the use of ramming is an important step to ensure the density and uniformity of the concrete mixture. The ramming process has a certain labor intensity, and it is difficult to ensure the ramming depth. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a device for quickly detecting the performance of a high-grade concrete mixture, which can perform tamping operations according to a spiral line to reduce the impact of manual operations on the detection data.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A high-grade concrete mixture performance rapid detection device comprises a detection platform, a slump cone and a ramming and lifting mechanism, wherein the slump cone is placed on the detection 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 detection platform, the upper end of the lifting mechanism is fixedly connected to the middle part of the connecting rod, the lower end of the lifting mechanism is fixedly connected to the rotating platform, and the ramming mechanism and the lifting mechanism are respectively arranged at both ends of the connecting rod; The tamping mechanism comprises a spiral guide plate and a guide rod, wherein the spiral guide plate is provided with a spiral groove, and the spiral guide plate is fixedly connected to the connecting rod through a support rod; a driving rod is rotatably connected to the middle of the spiral guide plate, and a driving mechanism is provided on the spiral guide plate to drive the driving rod to rotate; The upper end of the driving rod is fixedly connected to a fixing plate, 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-jointed with the fixing plate, 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.

[0006] 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.

[0007] 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.

[0008] The tamping mechanism also includes a limiting pressure rod, which is slidably connected to the connecting rod, and a return spring is arranged between the limiting pressure rod and the connecting rod; the lower end of the limiting pressure rod can be against the slump cone.

[0009] The lower end of the limiting rod is provided with an inserting rod, and the slump cone is provided with an inserting hole.

[0010] The lifting mechanism comprises 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 arranged on the lifting plate; and a clamping plate connected to the clamping groove is arranged at the upper end of the slump cone.

[0011] 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, the scraper is slidably connected to the fixed frame, and a compression spring is provided between the scraper and the fixed frame.

[0012] The testing platform is provided with a discharging port.

[0013] The driving mechanism comprises 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.

[0014] Compared with the prior art, the present invention has the following beneficial effects: A tamping mechanism is provided, which can replace manual spiral tamping to ensure the density and uniformity of the concrete mixture. A lifting mechanism is provided to replace manual lifting and ensure vertical lifting to avoid affecting the test results.

[0015] A limit pressure rod is set to avoid unnecessary shaking of the slump cone during filling. A scraping mechanism is set to clean the surface of the test table for the next test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of one aspect of the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 yes Figure 1 A partial enlarged view of point B in the middle; Figure 4 It is a front view of the present invention; Figure 5 It is a structural schematic diagram of another aspect of the present invention; Figure 6 is a cross-sectional view of a first tamping rod of the present invention; Figure 7 It is a structural schematic diagram of the tamping mechanism of the present invention; 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 driving rod, 75 is a driving mechanism, 750 is a driving motor, 751 is a driving gear, 752 is a transmission gear, 76 is a fixed plate, 77 is a sliding 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 limiting pressure rod, 713 is a reset 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 clamping plate, 9 is a scraping mechanism, 90 is a fixed frame, 91 is a scraper, and 92 is a compression spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] like Figure 1-7 As shown, a high-grade concrete mixture performance rapid detection device 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 rotating table 5, a lifting mechanism 6, a ramming mechanism 7 and a lifting mechanism 8.

[0019] The turntable 5 is fixedly connected to the inspection table 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 arranged at both ends of the connecting rod 4 also rotate accordingly.

[0020] Specifically, the tamping mechanism 7 is located above the slump cone 2 by driving the turntable 5 to rotate, and the descent height is controlled by the lifting mechanism 6 so that the tamping mechanism 7 tamps the concrete in the slump cone 2. After the tamping is completed, the lifting mechanism 8 is transferred to the slump cone 2 by driving the turntable 5 to rotate, and the slump cone 2 is lifted for inspection.

[0021] The tamping mechanism 7 comprises a spiral guide plate 70 and a guide rod 71, and 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, and the two ends of the support rod 73 are fixedly connected to the spiral guide plate 70 and the connecting rod 4 respectively.

[0022] A driving rod 74 is rotatably connected to the middle of the spiral guide plate 70, and a driving mechanism 75 is provided on the spiral guide plate 70. A fixing plate 76 is fixedly connected to the upper end of the driving rod 74, and a sliding rod 77 is fixedly connected to the middle of the driving rod 74. The sliding rod 77 is provided with a sliding groove that matches the middle of the guide rod 71. The middle of the guide rod 71 is located in the sliding groove and there is a gap between the two. The upper end of the guide rod 71 is ball-jointed with the fixing plate 76, and the lower end of the guide rod 71 is located in the spiral groove 72, which can move along the spiral groove, and there is a gap between the guide rod 71 and the spiral groove.

[0023] A retractable first tamping rod 78 is fixedly connected to the lower end of the guide rod 71, and tamping can be performed by retracting the first tamping rod 78; and the driving mechanism 75 drives the driving rod 74 to rotate, so that the guide rod 71 moves along the spiral groove to change the tamping position. That is, the device can realize spiral tamping. After tamping once, the driving mechanism 75 drives the guide rod 71 to move a certain amplitude along the spiral groove, and then the next tamping is performed; follow these steps in sequence until the guide rod 71 rotates from the outside of the spiral groove to the inside of the spiral groove (that is, the tamping is performed from the outside to the center along the slump cone 2 in the spiral direction).

[0024] The specific operation process is as follows: first place the slump cone 2 on the testing table 1, and then drive the rotating table 5 to rotate so that the tamping mechanism 7 is located above the slump cone 2. Then, the concrete samples obtained as required are evenly loaded into the slump cone 2 in three layers using a small shovel. After the first layer is loaded, the lifting mechanism 6 controls the descending height so that the tamping mechanism 7 tampers the concrete in the slump cone 2; then the second layer is loaded, and the lifting mechanism 6 is raised to a certain height so that the tamping mechanism 7 tampers the concrete in the slump cone 2; finally, the third layer (top layer) is loaded, and the lifting mechanism 6 is raised to a certain height so that the tamping mechanism 7 tampers the concrete in the slump cone 2. After the top layer is tamped, scrape off the excess concrete and smooth it with a spatula.

[0025] 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 can be carried out by measuring the height difference between the two using a ruler in the prior art.

[0026] 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 retractable structure and is fixedly connected to the middle of the spiral guide plate 70.

[0027] Furthermore, the first tamping rod 78 and the second tamping rod 79 have the same structure, both including 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 of the spiral guide plate 70. By providing the connecting sleeve 711, the connecting sleeve 711 of different diameters can be replaced as needed.

[0028] Furthermore, the tamping mechanism 7 further includes a limiting pressure rod 712, which is slidably connected to the connecting rod 4, and 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 are respectively against the connecting rod 4 and the limiting pressure rod 712. Limiting protrusions are provided at both ends of the limiting pressure rod 712, and the limiting protrusion at the upper end is used to limit the limiting pressure rod 712 to prevent the limiting pressure rod 712 from being separated from the connecting rod 4, and the limiting protrusion at the lower end is used to abut against the return spring 713.

[0029] The lower end of the limiting pressure rod 712 can be against the slump cone 2. This mechanism can be used to fix the slump cone 2 during the ramming process to prevent it from shaking.

[0030] The tamping mechanism 7 is driven to rotate by the turntable 5 so that it is located above the slump cone 2, and when it is controlled to descend by the lifting mechanism 6, the lower end of the limit 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 limit pressure rod 712 and the slump cone 2.

[0031] Furthermore, an insertion rod 714 is provided at the lower end of the limit rod, 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 limit pressure rod 712 can be against 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.

[0032] Furthermore, the lifting mechanism 8 preferably adopts the following structural arrangement, which includes a lifting rod 80 and a lifting plate 81, wherein the two 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.

[0033] 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.

[0034] Furthermore, it also includes a scraping mechanism 9, which includes a fixed frame 90 and a scraper 91. The fixed frame 90 is fixedly connected to the fixed part of the lifting mechanism 6, and 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, and 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, and at this time, the compression spring 92 is in a compressed state.

[0035] A discharge port 10 is provided on the testing platform 1. After the testing is finished, 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.

[0036] The lifting mechanism 6 can be any one of an electric telescopic cylinder 710, a gas 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.

[0037] Furthermore, the driving mechanism 75 includes 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, and the driving gear 751 is fixedly connected to the driving rod 74. A transmission gear 752 meshing with the driving gear 751 is fixedly connected to the output shaft of the driving motor 750. The driving rod 74 can be driven to rotate accordingly by rotating the output shaft of the driving motor 750.

[0038] 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 high-grade concrete mixture performance rapid detection device, characterized in that: The invention comprises a testing platform (1), a slump cone (2) and a tamping and lifting mechanism (3), wherein the slump cone (2) is placed on the testing platform (1); the tamping and lifting mechanism (3) comprises a connecting rod (4), a rotating platform (5), a lifting mechanism (6), a tamping 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 tamping 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) is provided on the spiral guide plate (70) for driving the driving rod (74) to rotate; The upper end of the driving rod (74) is fixedly connected to a fixing plate (76), 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) is ball-jointed to the fixing plate (76), 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).

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. A high-grade concrete mixture performance rapid detection device according to claim 1, characterized in that: The tamping mechanism (7) further comprises a limiting pressure rod (712), the limiting pressure rod (712) being slidably connected to the connecting rod (4), 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).

5. A high-grade concrete mixture performance rapid detection device according to claim 4, characterized in that: The lower end of the limiting rod is provided with an insertion rod (714), and the slump cone (2) is provided with an insertion hole (715).

6. A high-grade concrete mixture performance rapid detection device according to claim 1, characterized in that: The lifting mechanism (8) comprises a lifting rod (80) and a lifting plate (81), wherein two 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).

7. A high-grade concrete mixture performance rapid detection device according to claim 1, characterized in that: It also 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 a 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).

8. A high-grade concrete mixture performance rapid detection device according to claim 7, characterized in that: The detection platform (1) is provided with a discharge port (10).

9. A 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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