Concrete slump testing device
By introducing the screw lifting and automatic tamping mechanism into the concrete slump test device, the problem of inaccurate testing caused by manual operation is solved, and the stability and accuracy of the test results are achieved.
Patent Information
- Application Number
- CN202520002600.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2035-01-02
AI Technical Summary
The existing concrete slump test device is difficult to control the ramming depth during the manual ramming process, resulting in the concrete not being compacted enough in the test bucket. The test bucket is also prone to shaking when removed, affecting the accuracy of the test results.
It adopts a screw lifting and automatic tamping mechanism, and realizes the stable lifting and lowering of the test bucket and the automatic operation of the tamping rod through the screw guide rail and electric push rod, ensuring that the concrete is compacted in the test bucket. The motor is controlled by the single-chip microcomputer to drive the tamping socket to slide back and forth, realizing the stable insertion and extraction of the tamping rod.
It improves the accuracy of concrete slump test, reduces the error of manual operation, and ensures the stability and accuracy of test results.
Smart Images
Figure CN223461579U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete slump test technical field, concretely is a kind of concrete slump test device. BACKGROUND
[0002] Concrete slump is mainly to refer to the plasticizing performance and pumpability of concrete, the factors that influence concrete slump mainly have gradation variation, water content, weighing deviation of weighing apparatus, dosage of admixture, and the temperature of cement that is easily ignored etc..Slump refers to the workability of concrete, specifically speaking, it is to guarantee the normal progress of construction, including the water retention, fluidity and cohesiveness of concrete.
[0003] When testing concrete slump, concrete is loaded into test hopper in three times, and concrete needs to be tamped each time when loading concrete, and tamping rod is required to be as much as possible not to exceed the highest height of the concrete poured last time each time, so that concrete is more compact in test hopper, and test hopper is removed after loading concrete, and concrete naturally collapses, and the height of collapse is slump, but it is difficult to control the depth of tamping concrete manually, and concrete is not compact enough in test hopper, and test hopper may also shake when being removed manually, so as to affect the result of slump test, and the error is large, therefore, we propose a kind of concrete slump test device. UTILITY MODEL CONTENT
[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a kind of concrete slump test device, test hopper is automatically lifted by screw rod lifting, detection is more accurate, concrete is more compact in test hopper by automatically tamping concrete, and the problems in the background art can be effectively solved.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of concrete slump test device, including trolley and tamping mechanism;
[0006] Trolley: its right side is provided with displacement mechanism one, the left side of displacement mechanism one is fixedly connected with test hopper, the upper end of test hopper is inserted with hopper, and the rear side of trolley is provided with displacement mechanism two;
[0007] The tamping mechanism comprises a slide column, a base, a tamping seat, a spring and a tamping rod, the front end of the displacement mechanism two is provided with the base, the upper end of the base is provided with the tamping seat, the lower surface of the front end of the tamping seat is sawtooth-shaped, the rear side of the tamping seat is fixedly connected with the slide columns which are symmetrically distributed left and right, the slide columns are respectively slidably connected in the adjacent through holes at the rear end of the base, the front end of the base is inserted with the tamping rods which are uniformly distributed, the upper end of the tamping rod is provided with the spring seat, the upper end of the tamping rod is movably sleeved with the spring, the spring is located between the upper surface of the base and the vertically adjacent spring seat, the upper end of the tamping rod is in contact with the sawtooth surface of the tamping seat, the tamping rod corresponds to the upper and lower positions of the test hopper, the test hopper is automatically lifted by the screw rod, the detection is more accurate, and the concrete in the test hopper is more compact through automatic tamping.
[0008] Further, a single-chip microcomputer is arranged on the left side of the trolley, the input end of the single-chip microcomputer is electrically connected with an external power supply, and the single-chip microcomputer controls the electrical appliances.
[0009] Further, the displacement mechanism one comprises a connecting rod, a bottom plate and a screw rod guide rail one, the right side of the trolley is fixedly connected with the screw rod guide rail one, the left side surface of the slide table of the screw rod guide rail one is fixedly connected with the bottom plate, the front and rear sides of the bottom plate are fixedly connected with the connecting rods which are symmetrically distributed up and down, the left ends of the four connecting rods are fixedly connected with the test hopper, the input end of the screw rod guide rail one is electrically connected with the output end of the single-chip microcomputer, and the lifting of the test hopper is realized.
[0010] Further, the displacement mechanism two comprises a guide rail, a slide base, a screw rod guide rail two and an electric push rod, the rear side of the trolley is fixedly connected with the guide rail and the electric push rod, the upper end of the guide rail is slidably connected with the slide base, the rear end of the telescopic end of the electric push rod is fixedly connected with the left side of the slide base, the upper surface of the slide base is fixedly connected with the screw rod guide rail two, the front side surface of the slide table of the screw rod guide rail two is fixedly connected with the base, and the input ends of the screw rod guide rail two and the electric push rod are electrically connected with the output end of the single-chip microcomputer, so that the lifting and front and rear movement of the base are realized.
[0011] Further, the tamping mechanism further comprises a rotating disc, a motor and a connecting rod, the lower surface of the rear side of the base is fixedly connected with the motor, the upper end of the output shaft of the motor is fixedly connected with the rotating disc, the edge of the rotating disc is rotatably connected with the connecting rod through a pin shaft one, the front end of the connecting rod is rotatably connected with the lower surface of the rear end of the tamping seat through a pin shaft two, the rotating disc is located between the two slide columns, the input end of the motor is electrically connected with the output end of the single-chip microcomputer, and the front and rear reciprocating sliding of the tamping seat is realized.
[0012] Further, the tamping mechanism further comprises a side plate, the left and right sides of the base are provided with the side plates, and the tamping seat is slidably connected between the two side plates, so that the sliding of the tamping seat is more stable.
[0013] Further, a wooden board is arranged on the front side of the trolley, and the wooden board is located at the lower end of the test hopper, so that the wooden board is convenient to replace and keeps the trolley clean.
[0014] Compared with the prior art, the concrete slump testing device has the following advantages:
[0015] 1. The height of the tamping rod is stably inserted into the test hopper by the cooperation of the electric push rod and the lead screw guide rail, which avoids disturbing the tamped concrete at the lower end, and the adjacent tamping rods slide up and down in opposite directions, so that the tamped concrete is more uniform and compact, and bubbles are avoided in the test hopper.
[0016] 2. The sliding table of the lead screw guide rail one drives the test hopper to rise, and the process of the test hopper leaving the concrete is more stable and smooth, which reduces the influence on the natural slump of the concrete and makes the test more accurate. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 is a structural schematic view of the utility model;
[0018] Fig. 2 is a sectional view of the enlarged A of the utility model.
[0019] In the figure: 1 trolley, 2 displacement mechanism one, 21 connecting rod, 22 bottom plate, 23 lead screw guide rail one, 3 displacement mechanism two, 31 guide rail, 32 sliding seat, 33 lead screw guide rail two, 34 electric push rod, 4 tamping mechanism, 41 slide column, 42 rotary disc, 43 motor, 44 connecting rod, 45 base, 46 tamping seat, 47 spring, 48 tamping rod, 49 side plate, 5 test hopper, 6 hopper, 7 wooden board, 8 single-chip microcomputer. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0021] Please refer to Figs. 1-2 The embodiment provides a technical scheme: a concrete slump testing device, which comprises a trolley 1 and a tamping mechanism 4.
[0022] The trolley 1 is provided with a displacement mechanism one 2 at the right side, the left side of the displacement mechanism one 2 is fixedly connected with a test hopper 5, the upper end of the test hopper 5 is inserted with a hopper 6, the rear side of the trolley 1 is provided with a displacement mechanism two 3, and the front side of the trolley 1 is placed with a wooden board 7, and the wooden board 7 is located at the lower end of the test hopper 5.
[0023] The displacement mechanism 2 comprises a connecting rod 21, a bottom plate 22 and a lead screw guide rail 1 23, the right side of the trolley 1 is fixedly connected with the lead screw guide rail 1 23, the left side surface of the sliding table of the lead screw guide rail 1 23 is fixedly connected with the bottom plate 22, the front and rear sides of the bottom plate 22 are fixedly connected with the upper and lower symmetrically distributed connecting rods 21, the left ends of the four connecting rods 21 are fixedly connected with the test hopper 5, the input end of the lead screw guide rail 1 23 is electrically connected with the output end of the single-chip microcomputer 8, after the concrete is filled, the tamping rod 48 is separated, the hopper 6 is removed, the concrete on the upper end of the test hopper 5 is smoothed, the sliding table of the lead screw guide rail 1 23 drives the test hopper 5 to rise, the concrete naturally collapses, and then the collapse height of the concrete is measured, and the test is completed;
[0024] The displacement mechanism 2 comprises a connecting rod 21, a bottom plate 22 and a lead screw guide rail 1 23, the right side of the trolley 1 is fixedly connected with the lead screw guide rail 1 23, the left side surface of the sliding table of the lead screw guide rail 1 23 is fixedly connected with the bottom plate 22, the front and rear sides of the bottom plate 22 are fixedly connected with the upper and lower symmetrically distributed connecting rods 21, the left ends of the four connecting rods 21 are fixedly connected with the test hopper 5, the input end of the lead screw guide rail 1 23 is electrically connected with the output end of the single-chip microcomputer 8, after the concrete is filled, the tamping rod 48 is separated, the hopper 6 is removed, the concrete on the upper end of the test hopper 5 is smoothed, the sliding table of the lead screw guide rail 1 23 drives the test hopper 5 to rise, the concrete naturally collapses, and then the collapse height of the concrete is measured, and the test is completed;
[0025] Tamping mechanism 4: it includes slide column 41, base 45, tamping base 46, spring 47 and tamping rod 48, the front end of displacement mechanism two 3 is provided with base 45, the upper end of base 45 is provided with tamping base 46, the lower surface of the front end of tamping base 46 is sawtooth-shaped, the rear side of tamping base 46 is fixedly connected with the slide column 41 that is symmetrically distributed left and right, the slide column 41 is respectively and slidingly connected in the inside of the adjacent through hole of the rear end of base 45, the front end of base 45 is inserted with the tamping rod 48 that is uniformly distributed, the upper end of tamping rod 48 is all equipped with spring seat, the upper end of tamping rod 48 is all movably sleeved with spring 47, spring 47 is all located between the upper surface of base 45 and the vertically adjacent spring seat, the upper end of tamping rod 48 is all in contact with the sawtooth surface of tamping base 46, tamping rod 48 is all with the upper and lower position of test hopper 5 corresponds, tamping mechanism 4 still includes turntable 42, motor 43 and connecting rod 44, the lower surface of the rear side of base 45 is fixedly connected with motor 43, the output shaft of motor 43 is fixedly connected with turntable 42, the edge of turntable 42 is rotatably connected with connecting rod 44 through pin shaft one, the front end of connecting rod 44 is rotatably connected with the lower surface of the rear end of tamping base 46 through pin shaft two, turntable 42 is located between two slide columns 41, the input end of motor 43 is electrically connected with the output end of single-chip microcomputer 8, tamping mechanism 4 still includes side plate 49, the left and right sides of base 45 are all equipped with side plate 49, tamping base 46 is slidingly connected between two side plates 49, the output shaft of motor 43 drives turntable 42 to rotate, the end of connecting rod 44 close to turntable 42 is the center axis revolution of the center of turntable 42, drives tamping base 46 to reciprocatingly slide between two side plates 49, slide column 41 slides in the inside of the adjacent through hole of the rear end of base 45, avoids tamping base 46 to be warped, the sawtooth surface of tamping base 46 promotes tamping rod 48 to slide up and down, when tamping rod 48 is pressed down, spring 47 is compressed, when the sawtooth surface of tamping base 46 no longer promotes tamping rod 48 to the force downward, spring 47 restores, promotes tamping rod 48 to slide up, realizes the reciprocating slide of tamping rod 48 up and down, tamping rod 48 and the contact position of the sawtooth surface of tamping base 46 are different, when the front end tamping rod 48 drops, the rear end tamping rod 48 reversely rises, realizes the tamping of concrete.
[0026] Wherein: it also includes single-chip microcomputer 8, single-chip microcomputer 8 is arranged at the left side of trolley 1, the input end of single-chip microcomputer 8 is electrically connected with external power supply.
[0027] The working principle of the concrete slump testing device is as follows: the wood board 7 is placed to the front side of the cart 1, then the test bucket 5 is fixedly connected between the four connecting rods 21, the sliding table of the screw rod guide rail one 23 is controlled to descend, the lower end of the test bucket 5 is attached to the wood board 7, then about one third of the concrete is poured into the inside of the test bucket 5, the telescopic end of the electric push rod 34 is controlled to retract, the sliding seat 32 slides forward at the upper end of the guide rail 31, the screw rod guide rail two 33 and the base 45 move forward, the sliding table of the screw rod guide rail two 33 descends, the base 45 descends, the tamping rod 48 is inserted into the inside of the test bucket 5, when the lower end of the tamping rod 48 is about to contact the wood board 7, the sliding table of the screw rod guide rail two 33 stops descending, the output shaft of the motor 43 drives the rotating disc 42 to rotate, the end of the connecting rod 44 close to the rotating disc 42 is the center axis of the rotating disc 42, the tamping seat 46 is driven to reciprocate forward and backward between the two side plates 49, the sliding column 41 slides in the through hole adjacent to the rear end of the base 45, so that the tamping seat 46 is prevented from being warped, the sawtooth surface of the tamping seat 46 pushes the tamping rod 48 to slide up and down, when the tamping rod 48 is pressed down, the spring 47 is compressed, when the sawtooth surface of the tamping seat 46 no longer pushes the tamping rod 48 downward, the spring 47 restores to push the tamping rod 48 to slide upward, the tamping rod 48 reciprocates up and down, the tamping rod 48 and the sawtooth surface of the tamping seat 46 are in different contact positions, when the front tamping rod 48 descends, the rear tamping rod 48 reversely rises, the concrete is tamped, after tamping, the base 45 rises driven by the screw rod guide rail two 33, the tamping rod 48 leaves the test bucket 5, the telescopic end of the electric push rod 34 exits, the screw rod guide rail two 33 and the base 45 retreat, the tamping rod 48 moves backward, the concrete is continuously added, the tamping rod 48 tamps the concrete again, but the height of the lower end of the tamping rod 48 is the same as the highest height of the concrete added before, after the concrete is filled, the tamping rod 48 leaves, the hopper 6 is removed, the concrete at the upper end of the test bucket 5 is smoothed, the test bucket 5 rises driven by the sliding table of the screw rod guide rail one 23, the concrete naturally collapses, then the slump height of the concrete is measured, and the test is completed.
[0028] It is worth noting that the single-chip microcomputer 8 in the above embodiment can be selected as STM32F103RCT6, the screw rod guide rail one 23 and the screw rod guide rail two 33 can be selected as FSK40 linear sliding tables, the electric push rod 34 can be selected as DH65 electric push rods, and the motor 43 can be selected as DPG reduction motors.
[0029] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.
Claims
1. A concrete slump test apparatus, characterised in that: It include trolley (1) and rammer (4); Trolley (1): its right side is provided with displacement mechanism one (2), the left side of displacement mechanism one (2) is fixedly connected with test hopper (5), the upper end of test hopper (5) is inserted with hopper (6), the rear side of trolley (1) is provided with displacement mechanism two (3); Rammer (4): it includes slide column (41), base (45), rammer seat (46), spring (47) and rammer rod (48), the front end of displacement mechanism two (3) is provided with base (45), the upper end of base (45) is provided with rammer seat (46), the lower surface of the front end of rammer seat (46) is sawtooth-shaped, the rear side of rammer seat (46) is fixedly connected with left and right symmetrical distribution's slide column (41), slide column (41) is respectively slidably connected in the inside of adjacent through hole of the rear end of base (45), the front end of base (45) is inserted with evenly distributed rammer rod (48), the upper end of rammer rod (48) is all provided with spring seat, the upper end of rammer rod (48) is movably sleeved with spring (47), spring (47) is all located between the upper surface of base (45) and vertically adjacent spring seat, the upper end of rammer rod (48) is all in contact with the sawtooth surface of rammer seat (46), rammer rod (48) is all in position correspondence with test hopper (5) up and down.
2. A concrete slump test apparatus as claimed in claim 1, wherein: It also includes single-chip microcomputer (8), the single-chip microcomputer (8) is arranged on the left side of trolley (1), the input end of single-chip microcomputer (8) is electrically connected with external power supply.
3. A concrete slump test apparatus as claimed in claim 2, wherein: The displacement mechanism one (2) includes connecting rod (21), bottom plate (22) and screw rod guide rail one (23), the right side of trolley (1) is fixedly connected with screw rod guide rail one (23), the left side surface of the slide table of screw rod guide rail one (23) is fixedly connected with bottom plate (22), the front and rear sides of bottom plate (22) are both fixedly connected with up and down symmetrical distribution's connecting rod (21), the left end between four connecting rods (21) is fixedly connected with test hopper (5), the input end of screw rod guide rail one (23) is electrically connected with the output end of single-chip microcomputer (8).
4. A concrete slump test apparatus as claimed in claim 2, wherein: The displacement mechanism two (3) includes guide rail (31), slide base (32), screw rod guide rail two (33) and electric push rod (34), the rear side of trolley (1) is fixedly connected with guide rail (31) and electric push rod (34), the upper end of guide rail (31) is slidably connected with slide base (32), the rear end of the telescopic end of electric push rod (34) is fixedly connected with the left side of slide base (32), the upper surface of slide base (32) is fixedly connected with screw rod guide rail two (33), the front side surface of the slide table of screw rod guide rail two (33) is fixedly connected with base (45), the input end of screw rod guide rail two (33) and electric push rod (34) is all electrically connected with the output end of single-chip microcomputer (8).
5. A concrete slump test apparatus as claimed in claim 2, wherein: The tamping mechanism (4) further comprises a rotating disc (42), a motor (43) and a connecting rod (44), the lower surface of the rear side of the base (45) is fixedly connected with the motor (43), the upper end of the output shaft of the motor (43) is fixedly connected with the rotating disc (42), the edge of the rotating disc (42) is rotatably connected with the connecting rod (44) through a pin shaft one, the front end of the connecting rod (44) is rotatably connected with the lower surface of the rear end of the tamping seat (46) through a pin shaft two, the rotating disc (42) is located between the two slide columns (41), and the input end of the motor (43) is electrically connected with the output end of the single-chip microcomputer (8).
6. A concrete slump test apparatus as defined in claim 1, wherein: The tamping mechanism (4) further comprises side plates (49), the left and right sides of the base (45) are each provided with a side plate (49), and the tamping seat (46) is slidingly connected between the two side plates (49).
7. The concrete slump test device of claim 1, wherein: The front side of the trolley (1) is provided with a wooden board (7), and the wooden board (7) is located at the lower end of the test hopper (5).