Concrete mixture fluidity variable quantity testing device

Abstract

The utility model discloses a concrete mixture fluidity variation testing device which comprises a base, a mounting frame is fixedly arranged on the upper surface of the base, a stacking mechanism is arranged on the surface of the base, and the collection and reinjection of a mixture are realized through the stacking mechanism. According to the device for testing the fluidity variation of the concrete mixture, the concrete mixture is directly pushed into the storage barrel after detection is completed, so that an electric push rod in the storage barrel can upwards push the concrete mixture into a conical barrel through a bearing disc after the concrete mixture is completely collected; by means of the mode that a driving gear drives a connecting ring to rotate, a concentrating plate can automatically complete pushing and collecting of the concrete mixture after testing is completed, and therefore the process that the concrete mixture is manually collected through a tool is omitted, and the working efficiency is improved. The complete collection of the concrete mixture is ensured, and meanwhile, the collection speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete preparation, in particular to a device for testing the fluidity variation of a concrete mixture. Background Art

[0002] Concrete is a material widely used in the construction field. In order to ensure the performance of concrete, it must be tested. Among them, fluidity is one of the important indicators of concrete performance. Therefore, the detection method and index requirements of concrete fluidity are important research directions in the construction field. Concrete fluidity refers to the flow performance of concrete without vibration. It can be evaluated by indicators such as the slump, expansion, and shrinkage of concrete. The most common of these is the slump method. The slump method is a commonly used concrete fluidity detection method. Its principle is to let concrete fall freely at a certain height and then measure the slump height of the concrete. The greater the slump height, the worse the fluidity of the concrete. During the detection process, the fluidity of the concrete mixture is different in different time periods. In order to ensure the rigor of the test results, it is necessary to use the same pile of concrete for repeated testing. Therefore, during the detection process, the concrete needs to be repeatedly collected and injected into the cone bucket, which not only cannot be completely collected but also increases the workload of the test. Utility Model Content

[0003] The utility model aims to provide a device for testing the fluidity variation of concrete mixtures, so as to solve the problem of poor fluidity testing methods of mixtures proposed in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for testing the change in fluidity of a concrete mixture, comprising a base, a mounting frame is fixedly provided on the upper surface of the base, a hydraulic rod is fixedly installed on the upper end of the mounting frame, and a cone barrel is fixedly connected to the lower end of the hydraulic rod, and a stacking mechanism is provided on the surface of the base, through which the mixture is collected and re-injected.

[0005] Preferably, the stacking mechanism comprises: a storage barrel, which is fixedly arranged on the lower surface of the base, and an electric push rod is fixedly installed on the lower surface of the storage barrel, and the upper end of the electric push rod is fixedly connected to a supporting tray.

[0006] By adopting the above technical solution, the electric push rod can push the concrete mixture in the storage barrel upwards through the support tray.

[0007] Preferably, the stacking mechanism also includes: a swivel, which is rotatably mounted on the upper surface of the base, a focusing plate is provided on the inner surface of the swivel, and one end of the focusing plate passes through the outer surface of the swivel, and a guide rod is fixedly provided on the lower surface of one end of the focusing plate located outside the swivel, and a limiting plate is fixedly provided on the outer surface of the swivel.

[0008] By adopting the above technical solution, the limiting plate can limit the connection ring.

[0009] Preferably, the stacking mechanism further comprises: a connecting ring, which is rotatably connected to the rotating ring, and a guide groove is provided on the upper surface of the connecting ring, a motor is fixedly mounted on the upper surface of the base on one side of the connecting ring, and a driving gear is fixedly connected to the lower end of the output shaft of the motor.

[0010] By adopting the above technical solution, the motor can drive the connecting ring to rotate through the driving gear.

[0011] Preferably, the support tray is connected to the storage barrel by sliding friction, and the upper surface of the support tray is flush with the upper surface of the base.

[0012] By adopting the above technical solution, the concrete on the base can flow horizontally to the surroundings for detection.

[0013] Preferably, the concentrating plate is arc-shaped, and is slidably connected to the swivel, and a spring is connected between the concentrating plate and the outer surface of the swivel, the lower surface of the limit plate fits with the upper surface of the connecting ring, and the lower end of the guide rod is located inside the guide groove.

[0014] By adopting the above technical solution, the guide rod can drive the concentrating plate to slide along the guide groove when being squeezed by the guide groove.

[0015] Preferably, a tooth block is fixedly provided on the side surface of the connecting ring, and the connecting ring is meshed and connected with the driving gear through the tooth block, and the guide groove is designed to be arc-shaped.

[0016] By adopting the above technical solution, the guide groove can make the concentrating plate slide out and retract by squeezing the guide rod.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the concrete mixture fluidity change test device:

[0018] 1. By pushing the concrete mixture directly into the storage barrel after the inspection is completed, the electric push rod in the storage barrel can push the concrete mixture upward to the inside of the cone barrel through the support tray after the concrete mixture is completely collected, thereby reducing the overall workload;

[0019] 2. Furthermore, by driving the connecting ring to rotate with the active gear, the concentrating plate can automatically push and collect the concrete mixture after the test is completed, thereby eliminating the process of manually collecting the concrete mixture through tools, ensuring the complete collection of the concrete mixture while speeding up the collection speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the material storage barrel and the electric push rod of the utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall cutaway surface of the utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the cross-section surface of the connection between the connecting ring and the driving gear of the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the overall working state of the utility model;

[0025] Figure 6 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. base; 2. mounting frame; 3. hydraulic rod; 4. cone barrel; 5. storage barrel; 6. electric push rod; 7. support tray; 8. central plate; 9. guide rod; 10. swivel; 11. limit plate; 12. connecting ring; 13. guide groove; 14. motor; 15. driving gear. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 The utility model provides a technical solution: a device for testing the fluidity change of concrete mixture.

[0029] Embodiment 1

[0030] The embodiment discloses: a base 1, a mounting frame 2 is fixedly arranged on the upper surface of the base 1, a hydraulic rod 3 is fixedly arranged on the upper end of the mounting frame 2, and a cone barrel 4 is fixedly connected to the lower end of the hydraulic rod 3, and a stacking mechanism is arranged on the surface of the base 1, and the collection and re-injection of the mixture are realized by the stacking mechanism;

[0031] The stacking mechanism comprises: a storage barrel 5, which is fixedly arranged on the lower surface of the base 1, and an electric push rod 6 is fixedly installed on the lower surface of the storage barrel 5, and a supporting tray 7 is fixedly connected to the upper end of the electric push rod 6;

[0032] The tray 7 and the storage barrel 5 are connected by sliding friction, and the upper surface of the tray 7 is flush with the upper surface of the base 1;

[0033] During operation, first pour the concrete mixture into the cone barrel 4 until the cone barrel 4 is full, then start the hydraulic rod 3 on the mounting frame 2, the hydraulic rod 3 drives the cone barrel 4 to slide upward so that the concrete mixture collapses freely for detection, after the measurement is completed, start the electric push rod 6 to drive the support tray 7 to slide down, wait for the concrete mixture to be pushed into the storage barrel 5 on the surface of the base 1, then start the hydraulic rod 3 to drive the cone barrel 4 to slide down and fit with the upper surface of the base 1, at this time start the electric push rod 6 to drive the support tray 7 to slide up so that the concrete mixture is re-injected into the cone barrel 4, so as to facilitate and quickly carry out the next test.

[0034] Embodiment 2

[0035] This embodiment is based on the embodiment 1 and discloses that the stacking mechanism further includes: a rotating ring 10, which is rotatably mounted on the upper surface of the base 1, a centralizing plate 8 is provided on the inner surface of the rotating ring 10, and one end of the centralizing plate 8 passes through the outer surface of the rotating ring 10, and a guide rod 9 is fixedly provided on the lower surface of one end of the centralizing plate 8 located outside the rotating ring 10, and a limit plate 11 is fixedly provided on the outer surface of the rotating ring 10;

[0036] The stacking mechanism also includes: a connecting ring 12, which is rotatably connected to the rotating ring 10, and a guide groove 13 is provided on the upper surface of the connecting ring 12, a motor 14 is fixedly installed on the upper surface of the base 1 on one side of the connecting ring 12, and a driving gear 15 is fixedly connected to the lower end of the output shaft of the motor 14;

[0037] The centralizing plate 8 is designed to be arc-shaped, and the centralizing plate 8 is slidably connected to the rotating ring 10, and a spring is connected between the centralizing plate 8 and the outer surface of the rotating ring 10, the lower surface of the limit plate 11 is in contact with the upper surface of the connecting ring 12, and the lower end of the guide rod 9 is located inside the guide groove 13;

[0038] A tooth block is fixedly provided on the side surface of the connecting ring 12, and the connecting ring 12 is meshed and connected with the driving gear 15 through the tooth block, and the guide groove 13 is designed in an arc shape;

[0039] When it is necessary to collect the concrete mixture on the base 1, the hydraulic rod 3 on the mounting frame 2 is started to drive the cone barrel 4 to slide up, and the electric push rod 6 is started to drive the support tray 7 to slide down. At this time, the motor 14 is started, and the motor 14 drives the connecting ring 12 to rotate through the engagement of the driving gear 15 with the connecting ring 12. At this time, the connecting ring 12 squeezes the guide rod 9 through the guide groove 13 so that the guide rod 9 drives the concentrating plate 8 to slide toward the storage barrel 5 to compress the spring between the swivel 10. At this time, the guide rod 9 drives the swivel 10 to rotate as a whole. During the process, the concentrating plate 8 gradually pushes the concrete mixture on the surface of the base 1 into the storage barrel 5 through the arc design. When the concrete mixture is completely collected, the motor 14 is started to drive the driving gear 15 to rotate in the opposite direction, so that the concentrating plate 8 slides to the outside of the swivel 10 and resets. At this time, the hydraulic rod 3 is started to drive the cone barrel 4 to slide down to complete the reset, and the limit plate 11 ensures that the connecting ring 12 does not move up and down during the rotation of the connecting ring 12.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the fluidity variation of a concrete mixture, comprising a base (1), a mounting frame (2) being fixedly arranged on the upper surface of the base (1), a hydraulic rod (3) being fixedly mounted on the upper end of the mounting frame (2), and a cone barrel (4) being fixedly connected to the lower end of the hydraulic rod (3), characterized in that: The surface of the base (1) is provided with a stacking mechanism, through which the mixture is collected and re-injected.

2. A concrete mixture fluidity change test device according to claim 1, characterized in that: The stacking mechanism comprises: a material storage barrel (5), the material storage barrel (5) is fixedly arranged on the lower surface of the base (1), an electric push rod (6) is fixedly installed on the lower surface of the material storage barrel (5), and the upper end of the electric push rod (6) is fixedly connected to a supporting tray (7).

3. A concrete mixture fluidity change test device according to claim 1, characterized in that: The stacking mechanism further comprises: a rotating ring (10), the rotating ring (10) being rotatably mounted on the upper surface of the base (1), a centralizing plate (8) being arranged on the inner surface of the rotating ring (10), one end of the centralizing plate (8) passing through the outer surface of the rotating ring (10), a guide rod (9) being fixedly arranged on the lower surface of one end of the centralizing plate (8) located outside the rotating ring (10), and a limiting plate (11) being fixedly arranged on the outer surface of the rotating ring (10).

4. A concrete mixture fluidity change test device according to claim 1, characterized in that: The stacking mechanism further comprises: a connecting ring (12), the connecting ring (12) being rotatably connected to the rotating ring (10), and a guide groove (13) being provided on the upper surface of the connecting ring (12), a motor (14) being fixedly mounted on the upper surface of the base (1) on one side of the connecting ring (12), and a driving gear (15) being fixedly connected to the lower end of the output shaft of the motor (14).

5. A concrete mixture fluidity change test device according to claim 2, characterized in that: The support tray (7) is connected to the material storage barrel (5) by sliding friction, and the upper surface of the support tray (7) is flush with the upper surface of the base (1).

6. A concrete mixture fluidity change test device according to claim 3, characterized in that: The concentrating plate (8) is of arc-shaped design, and the concentrating plate (8) and the rotating ring (10) are slidably connected, and a spring is connected between the outer surfaces of the concentrating plate (8) and the rotating ring (10), the lower surface of the limiting plate (11) is in contact with the upper surface of the connecting ring (12), and the lower end of the guide rod (9) is located inside the guide groove (13).

7. A concrete mixture fluidity change test device according to claim 4, characterized in that: A tooth block is fixedly provided on the side surface of the connecting ring (12), and the connecting ring (12) is meshedly connected with the driving gear (15) via the tooth block, and the guide groove (13) is of arc-shaped design.

Images