Strength testing device for preparing concrete from recycled aggregate

Abstract

The utility model discloses a strength testing device for preparing concrete from recycled aggregate. The strength testing device mainly comprises a machine body, a controller, a hydraulic plate, a supporting mechanism and a vibrating mechanism, a driven rod and a first spring are arranged in the vibration mechanism, the upper end and the lower end of the driven rod are conical, the hydraulic plate conducts crushing and compressive strength detection on concrete on the supporting mechanism through downward pressing, and the vibration mechanism pulls the first spring to drive the driven rod to vibrate so as to drive the supporting mechanism to vibrate so that concrete fragments can be shaken off; according to the utility model, the problems that gravel blocks are accumulated in the strength test of concrete prepared from recycled aggregate, operation cannot be carried out for a long time and dust is easy to raise during cleaning are solved; and the working efficiency can be improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The present application relates to the field of concrete testing, and in particular to a strength testing device for preparing concrete with recycled aggregate. Background Art

[0002] In the process of modern engineering construction, due to the promotion of green construction and environmental protection concepts, more and more green and environmentally friendly materials are used in the construction process. At present, in the field of concrete construction, there is an option to prepare concrete with recycled aggregate as a substitute for natural aggregate concrete. It has the characteristics of low cost and easy production. However, due to the nature of the recycled aggregate itself, it is not easy to achieve the same strength as natural aggregate concrete. Therefore, it is necessary to strengthen the detection and control of its strength when using it. It is necessary to test more test blocks than natural aggregate concrete to ensure the material strength of each section or component of the project. The current concrete compressive strength testing device is mostly aimed at natural aggregate concrete, and its requirements for continuous testing are not high. After multiple tests, the internal concrete fragments need to be manually cleaned separately. When used in the strength test of recycled aggregate concrete, the detection efficiency will be greatly reduced, and manual handling is likely to cause dust, which is not convenient for long-term and continuous concrete strength testing.

[0003] For example, the publication number CN217111806U is a recycled aggregate concrete compressive strength testing device, which includes a base, a first threaded groove is provided inside the base, and a first threaded rod is connected to the inside of the first threaded groove, pulleys are provided at the four corners of the bottom end of the base, a body is provided at the top of the base, a clamping mechanism is provided at both ends of the body, a press is provided at the top of the body, and a pressure plate that passes through the top of the body is connected to the bottom of the press, and a loading mechanism is provided inside the body. The above-mentioned testing device can only facilitate the loading of concrete test blocks and the fixing of the device, but it cannot solve the problem of the inconvenience of cleaning fragments during long-term, continuous concrete test block testing. Therefore, this application designs a strength testing device for recycled aggregate concrete preparation that can automatically clean fragments during continuous concrete strength testing and process fragments of different sizes separately to prevent dust. Utility Model Content

[0004] The purpose of the utility model is to provide a strength testing device for preparing concrete with recycled aggregate, aiming to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a strength testing device for preparing concrete from recycled aggregate, comprising a machine body, a controller, a hydraulic plate, a support mechanism, and a vibration mechanism that can make the support mechanism vibrate and thereby vibrate the broken test block down; the hydraulic plate is slidably connected to the upper part of the machine body, the controller is bolted to the side of the machine body, the support mechanism is fixedly connected to the inside of the machine body by a connecting rod, the vibration mechanism is arranged inside the support mechanism, and the vibration mechanism and the hydraulic plate are electrically connected to the controller; a driven rod and a first spring are arranged in the vibration mechanism, the first spring is sleeved on the lower half of the driven rod, the upper and lower ends of the driven rod are conical, the upper end of the driven rod is clamped with the support mechanism, and the lower end of the driven rod is slidably connected to the vibration mechanism, the hydraulic plate crushes the concrete on the support mechanism and tests the compressive strength by pressing down, and the vibration mechanism drives the driven rod to vibrate by pulling the first spring, thereby driving the support mechanism to vibrate and vibrate the concrete fragments down.

[0006] The vibration mechanism is set to drive the driven rod to move and then make the support mechanism vibrate, so that the fragments on the support mechanism after the test are shaken off and collected, so that there is no need to open the body to clean the inside during continuous testing, which effectively improves the efficiency of concrete strength testing and reduces the labor intensity of operators.

[0007] Furthermore, a tempered glass plate that can be opened and closed is provided at the front end of the body, and a hole for installing a hydraulic plate is provided on the upper part of the body; the support mechanism includes an upper support plate and a lower support plate, the lower support plate is fixedly connected to the inner wall of the body by a connecting rod, the upper support plate is arranged below the hydraulic plate, and the lower support plate is arranged below the upper support plate. The lower support plate is a hollow structure, and a hollow column is provided in the middle of the lower end of the upper support plate, a first card slot is extended inside the hollow column, and second card slots are provided on both sides of the hollow column.

[0008] Furthermore, the vibration mechanism includes a transmission assembly, a vibration column, a push rod, a support column and a second spring. The transmission assembly is arranged inside the lower support plate. The vibration column is a hollow structure. The lower end of the vibration column is plugged into the middle of the upper end of the lower support plate. The lower end of the hollow column extends to the upper side of the vibration column. The push rod is arranged inside the vibration column and is slidably connected to the vibration column. The upper diameter of the push rod is smaller than the lower diameter. The upper part of the push rod extends into the interior of the hollow column. The support columns are arranged on both sides of the vibration column. One end of the second spring is arranged inside the support column. The other end of the second spring is fixedly connected to the inside of the second slot. The upper end of the driven rod is engaged with the first slot. The lower end of the driven rod extends into the interior of the push rod and is slidably connected to the push rod.

[0009] Furthermore, a limiting ring is provided in the pushing rod, and the limiting ring is located above the first spring.

[0010] Furthermore, the transmission assembly includes a motor, a rotating rod, a rotating pair and a push handle. The motor is arranged inside the lower support plate. One end of the rotating rod is plugged into the output end of the motor, and the other end of the rotating rod is fixedly connected to the rotating pair. The end of the rotating pair away from the rotating rod is rotatably connected to the push handle, and the end of the push handle away from the rotating pair is rotatably connected to the push rod.

[0011] Furthermore, an inclined filter plate is installed below the lower support plate and plugs into the inner wall of the machine body. A removable first collection trough is located below the filter plate, and a second collection trough is located at the rear of the machine body, which has an elongated opening. The filter plate filters fine debris into the first collection trough, while larger debris rolls down through the inclined filter plate and falls through the elongated opening into the second collection trough. The first collection trough blocks the falling debris and reduces dust generation, thereby reducing the impact on concrete strength testing and improving the stability of the device.

[0012] Compared with the existing technology, it has the following beneficial effects:

[0013] The utility model provides a strength testing device for preparing concrete with recycled aggregate, wherein a vibration mechanism is provided to drive a driven rod to move and thereby cause a supporting mechanism to vibrate, and fragments on the supporting mechanism after the test are shaken off and collected, so that there is no need to open the machine body for cleaning the interior during continuous testing, thereby effectively improving the efficiency of concrete strength testing and reducing the labor intensity of operators.

[0014] The filter plate is used to filter the small fragments into the first collection tank, and the large fragments roll down through the tilt of the filter plate and fall into the second collection tank through the long opening. Due to the obstruction of the first collection tank, the falling and cleaning of the small fragments is less likely to cause dust, which can reduce the impact on the concrete strength detection work and improve the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of a strength testing device for preparing concrete with recycled aggregates according to the present invention;

[0016] Figure 2 This is a schematic diagram from another angle of a strength testing device for preparing concrete with recycled aggregate according to the present invention;

[0017] Figure 3 This is a cross-sectional view of the support mechanism of a strength testing device for preparing concrete with recycled aggregates according to the present invention;

[0018] Figure 4 This is a cross-sectional view of the vibration mechanism of a strength testing device for preparing concrete with recycled aggregates according to the present invention.

[0019] In the figure: 1-body; 11-tempered glass plate; 2-controller; 3-hydraulic plate; 4-support mechanism; 41-upper support plate; 411-hollow column; 412-first slot; 413-second slot; 42-lower support plate; 5-vibration mechanism; 51-transmission assembly; 511-motor; 512-rotating rod; 513-rotating pair; 514-push handle; 52-vibration column; 53-push rod; 531-limiting ring; 54-support column; 55-second spring; 6-driven rod; 7-first spring; 8-filter plate; 9-first collecting tank; 10-second collecting tank. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 As shown, the utility model provides the following technical solutions: a strength testing device for preparing concrete with recycled aggregate, comprising a body 1, a controller 2, a hydraulic plate 3, a support mechanism 4 and a vibration mechanism 5 that can make the support mechanism 4 vibrate and thereby vibrate and drop the broken test block; the hydraulic plate 3 is slidably connected to the upper part of the body 1, the controller 2 is bolted to the side of the body 1, the support mechanism 4 is fixedly connected to the inside of the body 1 by a connecting rod, the vibration mechanism 5 is arranged inside the support mechanism 4, and the vibration mechanism 5 and the hydraulic plate 3 are electrically connected to the controller 2; a driven rod 6 and a first spring 7 are provided in the vibration mechanism 5, the first spring 7 is sleeved on the lower half of the driven rod 6, the upper and lower ends of the driven rod 6 are tapered, the upper end of the driven rod 6 is clamped with the support mechanism 4, and the lower end of the driven rod 6 is slidably connected to the vibration mechanism 5, the hydraulic plate 3 crushes the concrete on the support mechanism 4 and tests the compressive strength by pressing down, and the vibration mechanism 5 drives the driven rod 6 to vibrate by pulling the first spring 7, thereby driving the support mechanism 4 to vibrate and vibrate the concrete fragments.

[0022] As another embodiment, the front end of the machine body 1 is provided with an openable tempered glass panel 11, and the upper portion of the machine body 1 is provided with a hole for mounting a hydraulic plate 3. By opening the tempered glass panel 11, the concrete test block to be tested can be placed on the support mechanism 4. The controller 2 controls the hydraulic plate 3 to press downward to perform the compressive strength test, and real-time data can be monitored through the panel on the controller 2.

[0023] See also Figure 3The support mechanism 4 includes an upper support plate 41 and a lower support plate 42. The lower support plate 42 is fixedly connected to the inner wall of the body 1 through a connecting rod. The upper support plate 41 is arranged below the hydraulic plate 3, and the lower support plate 42 is arranged below the upper support plate 41. The lower support plate 42 is a hollow structure.

[0024] See also Figure 3 A hollow column 411 is provided in the middle of the lower end of the upper support plate 41. A first slot 412 is provided inside the hollow column 411. Second slots 413 are provided on both sides of the hollow column 411. The second slots 413 are provided with a locking structure, which can be locked electronically or mechanically to ensure that the upper support plate 41 and the vibration mechanism 5 are locked to a stable state, thereby avoiding instability during the compression test.

[0025] As another example, Figure 1 、 Figure 3 as well as Figure 4 As shown, the vibration mechanism 5 includes a transmission assembly 51, a vibration column 52, a push rod 53, a support column 54 and a second spring 55. The transmission assembly 51 is arranged inside the lower support plate 42. The vibration column 52 is a hollow structure. The lower end of the vibration column 52 is plugged into the middle of the upper end of the lower support plate 42. The lower end of the hollow column 411 extends to the upper side of the vibration column 52. The push rod 53 is arranged inside the vibration column 52 and is slidably connected with the vibration column 52. The upper diameter of the push rod 53 is smaller than the lower diameter. The upper part of the push rod 53 extends into the interior of the hollow column 411. The support column 54 is arranged on both sides of the vibration column 52. One end of the second spring 55 is arranged inside the support column 54. The other end of the second spring 55 is fixedly connected to the inside of the second slot 413. The upper end of the driven rod 6 is engaged with the first slot 412. The lower end of the driven rod 6 extends into the interior of the push rod 53 and is slidably connected to the push rod 53. The upper portion of the support column 54 is provided with a locking structure so that it can be locked with the second slot 413 of the upper support plate 41, so that the upper support plate 41 is in a stable state;

[0026] After placing the test block on the upper support plate 41, the hydraulic plate 3 is controlled to press down to compress the test block, thereby driving the upper support plate 41 to move downward, so that the second spring 55 is compressed, and the second clamping groove 413 and the support column 54 are locked to avoid instability of the upper support plate 41 caused by the spring. After locking, the hydraulic plate 3 continues to press down to test the compressive strength of the test block. After the test is completed, the hydraulic plate 3 rises, the second clamping groove 413 is unlocked from the support plate, and the second spring 55 releases its elastic potential energy and bounces up, driving the upper support plate 41 to move upward.

[0027] See also Figure 4 A limiting ring 531 is provided in the push rod 53 , and the limiting ring 531 is located above the first spring 7 .

[0028] See also Figure 3The transmission assembly 51 includes a motor 511, a rotating rod 512, a rotating pair 513 and a push handle 514. The motor 511 is arranged inside the lower support plate 42. One end of the rotating rod 512 is plugged into the output end of the motor 511, and the other end of the rotating rod 512 is fixedly connected to the rotating pair 513. The end of the rotating pair 513 away from the rotating rod 512 is rotatably connected to the push handle 514, and the end of the push handle 514 away from the rotating pair 513 is rotatably connected to the push rod 53. After completing a compressive strength test, the controller 2 starts the motor 511, so that the motor 511 drives the rotating rod 512 to rotate, and then drives the rotating pair 513 to rotate, and the rotating pair 513 drives the pushing handle 514 to reciprocate, and then drives the pushing rod 53 slidably connected to the vibration column 52 to reciprocate up and down, so that the pushing rod 53 directly pushes the upper support plate 41 to lift slightly when it moves upward, and pulls the first spring 7 downward through the limit ring 531 to compress when it moves downward, thereby causing the first spring 7 to drive the driven rod 6 to move downward, and the driven rod 6 drives the upper support plate 41 to move downward. Due to the conduction of the first spring 7, the upper support plate 41 vibrates. At the same time, the upper support plate 41 presses the second spring 55 when it moves downward, so that the second spring 55 accumulates elastic potential energy and applies it to the upper support plate 41, so that the vibration amplitude of the upper support plate 41 is small and the frequency is high, and the broken stones are shaken off by vibration while reducing dust.

[0029] As another example, Figure 1 and Figure 2 As shown, an inclined filter plate 8 is provided below the lower support plate 42, and the filter plate 8 is plugged into the inner wall of the body 1. A removable first collecting trough 9 is provided at the lower part of the filter plate 8. A long strip opening is provided at the rear of the body 1, and a second collecting trough 10 is provided at the rear of the body 1; the shaken-off gravel falls on the filter plate 8, and the smaller gravel passes through the filter plate 8 into the first collecting trough 9, while the larger gravel rolls through the inclined filter plate 8 into the second collecting trough 10 at the rear of the body 1. Both the first collecting trough 9 and the second collecting trough 10 are removable structures.

[0030] Working principle: When in use, open the tempered glass plate 11, place the test block to be tested on the upper support plate 41, then close the tempered glass plate 11, and control the hydraulic plate 3 to move down and contact the test block through the controller 2, driving the upper support plate 41 to move down, so that the second slot 413 and the support column 54 are locked, and the hydraulic plate 3 continues to move down to start the compressive strength test. After the test is completed, the hydraulic plate 3 moves up, the second slot 413 and the support column 54 are unlocked, and the second spring 55 is used to return the upper support plate 41 to its initial state, and the motor 511 is started through the controller 2, so that the transmission assembly 51 drives the push rod 53 to move on the vibration column 5 2 makes an up and down reciprocating motion, thereby driving the first spring 7 to repeatedly compress and stretch while driving the upper support plate 41 to move, thereby driving the driven rod 6 to pull the upper support plate 41 to vibrate, and at the same time the second spring 55 assists in vibrating the upper support plate 41, and the gravel on the upper support plate 41 is shaken off to the filter plate 8 below by vibration, and the smaller gravel enters the first collecting trough 9, and the larger gravel rolls into the second collecting trough 10. After there is no gravel on the upper support plate 41, the next test block can be tested, and the first collecting trough 9 or the second collecting trough 10 can be pulled out to clean the gravel inside uniformly.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for preparing concrete with recycled aggregate, characterized in that , comprising a machine body (1), a controller (2), a hydraulic plate (3), a support mechanism (4), and a vibration mechanism (5) capable of vibrating the support mechanism (4) and thereby vibrating and dropping the broken test block; the hydraulic plate (3) is slidably connected to the upper portion of the machine body (1), the controller (2) is bolted to the side of the machine body (1), the support mechanism (4) is fixedly connected to the inside of the machine body (1) through a connecting rod, the vibration mechanism (5) is arranged inside the support mechanism (4), the vibration mechanism (5) and the hydraulic plate (3) are electrically connected to the controller (2); the vibration mechanism (5) is provided with a driven rod (6) and a first spring (7), the first spring (7) is sleeved on the lower half of the driven rod (6), the upper and lower ends of the driven rod (6) are conical, the upper end of the driven rod (6) is engaged with the support mechanism (4), and the lower end of the driven rod (6) is slidably connected with the vibration mechanism (5), the hydraulic plate (3) crushes the concrete on the support mechanism (4) and tests the compressive strength by pressing down, and the vibration mechanism (5) drives the driven rod (6) to vibrate by pulling the first spring (7), and then drives the support mechanism (4) to vibrate to vibrate and shake off the concrete fragments.

2. The strength testing device for preparing concrete from recycled aggregate according to claim 1, characterized in that: The front end of the machine body (1) is provided with an openable and closable tempered glass plate (11), and the upper part of the machine body (1) is provided with a hole for installing the hydraulic plate (3).

3. The strength testing device for preparing concrete from recycled aggregate according to claim 2, characterized in that: The support mechanism (4) comprises an upper support plate (41) and a lower support plate (42); the lower support plate (42) is fixedly connected to the inner wall of the machine body (1) via a connecting rod; the upper support plate (41) is arranged below the hydraulic plate (3); the lower support plate (42) is arranged below the upper support plate (41); and the lower support plate (42) is a hollow structure.

4. The strength testing device for preparing concrete from recycled aggregate according to claim 3, characterized in that: A hollow column (411) is provided in the middle of the lower end of the upper support plate (41), a first clamping groove (412) is extended from the inside of the hollow column (411), and second clamping grooves (413) are provided on both sides of the hollow column (411).

5. The strength testing device for preparing concrete from recycled aggregate according to claim 4, characterized in that: The vibration mechanism (5) includes a transmission assembly (51), a vibration column (52), a push rod (53), a support column (54) and a second spring (55), wherein the transmission assembly (51) is arranged inside the lower support plate (42), the vibration column (52) is a hollow structure, the lower end of the vibration column (52) is plugged into the middle of the upper end of the lower support plate (42), the lower end of the hollow column (411) extends into the upper side of the vibration column (52), the push rod (53) is arranged inside the vibration column (52) and is slidably connected to the vibration column (52), and the The upper diameter of the push rod (53) is smaller than the lower diameter; the upper part of the push rod (53) extends into the interior of the hollow column (411); the support column (54) is arranged on both sides of the vibration column (52); one end of the second spring (55) is arranged inside the support column (54); the other end of the second spring (55) is fixedly connected to the interior of the second clamping groove (413); the upper end of the driven rod (6) is clamped with the first clamping groove (412); the lower end of the driven rod (6) extends into the interior of the push rod (53) and is slidably connected to the push rod (53).

6. The strength testing device for preparing concrete from recycled aggregate according to claim 5, characterized in that: A limiting ring (531) is provided in the pushing rod (53), and the limiting ring (531) is located above the first spring (7).

7. The strength testing device for preparing concrete from recycled aggregate according to claim 6, characterized in that: The transmission assembly (51) includes a motor (511), a rotating rod (512), a rotating pair (513) and a push handle (514). The motor (511) is arranged inside the lower support plate (42). One end of the rotating rod (512) is plugged into the output end of the motor (511). The other end of the rotating rod (512) is fixedly connected to the rotating pair (513). The end of the rotating pair (513) away from the rotating rod (512) is rotationally connected to the push handle (514). The end of the push handle (514) away from the rotating pair (513) is rotationally connected to the push rod (53).

8. The strength testing device for preparing concrete from recycled aggregate according to claim 7, characterized in that: An inclined filter plate (8) is provided below the lower support plate (42), the filter plate (8) is plugged into the inner wall of the body (1), a removable first collecting trough (9) is provided at the lower portion of the filter plate (8), a long strip opening is provided at the rear portion of the body (1), and a second collecting trough (10) is provided at the rear portion of the body (1).

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