Concrete strength detection device

Abstract

The utility model discloses a concrete strength detection device which comprises a bedplate, a plurality of supporting rods are fixed on one side of the upper surface of the bedplate, the top ends of the supporting rods are fixedly connected with a top plate together, a hydraulic telescopic rod is installed in the middle of the top plate, and the telescopic end of the bottom of the hydraulic telescopic rod is fixedly connected with an end plate. The surface of the end plate is slidably connected with a sleeve. According to the device, the platen, the top plate, the hydraulic telescopic rod, the sleeve, the pressing plate, the first spring, the transverse plate and the transparent cover are arranged, when the hydraulic rod drives the pressing plate to descend to conduct extrusion detection on the concrete sample block, the transverse plate and the transparent cover can descend synchronously, and when the bottom of the transparent cover makes contact with the upper surface of the platen, the pressing plate can continue to descend to extrude the concrete sample block; the transparent cover is always located on the outer side of the concrete sample block in the detection process, the concrete sample block is prevented from splashing all around when being broken, and the transparent cover can ascend and descend synchronously along with the hydraulic telescopic rod, so that ascending and descending of the transparent cover are simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a concrete strength testing device. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. The term concrete usually refers to cement concrete, also known as ordinary concrete, which is made by mixing cement as cementing material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion. It is widely used in civil engineering and construction. A large amount of concrete is needed in the construction process. Before it is used, its strength needs to be tested by strength testing equipment.

[0003] There are various methods for testing concrete. One method involves creating a sample block of a specified size using a mold, curing the sample for 28 days, and then pressing it with a testing device. A search revealed a patent with publication number CN219065070U that discloses a concrete testing device for strength testing. By using a first and second protective cover, it can prevent crushed concrete blocks from scattering during testing and facilitates the collection of concrete fragments. However, the first protective cover requires separate motor control for raising and lowering, adding an extra step to the process, making it less convenient to use. Furthermore, after the concrete sample breaks, fragments fall onto the surface of the first screw, which can cause wear and affect its accuracy. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a concrete strength testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a concrete strength testing device, comprising a platform, wherein multiple support rods are fixed to one side of the upper surface of the platform, and a top plate is fixedly connected to the top ends of the multiple support rods. A hydraulic telescopic rod is installed in the middle of the top plate, and an end plate is fixedly connected to the bottom telescopic end of the hydraulic telescopic rod. A sleeve is slidably connected to the surface of the end plate, and a pressure plate is fixedly connected to the lower surface of the sleeve. A first spring is fixedly connected to both sides of the upper surface of the pressure plate, and a horizontal plate is fixedly connected to the top ends of two first springs. An annular plate is fixed to the side of the lower surface of the horizontal plate, and a detachable transparent cover is fixedly fitted to the outer surface of the annular plate. A material discharge port is opened on the side of the platform near the transparent cover, and an inclined bucket is fixed to the upper surface of the platform. Side plates are fixed to both sides of the lower surface of the platform, and a bottom plate is fixed between two side plates. A collection box is placed on the upper surface of the bottom plate, and a control cabinet is installed on the upper surface of the platform.

[0006] Furthermore, a pressure sensor is installed on the inner bottom wall of the sleeve, and the pressure measuring end of the pressure sensor is in contact with the lower surface of the end plate. Both the pressure sensor and the hydraulic telescopic rod are electrically connected to the control cabinet.

[0007] Furthermore, the cross plate has a reserved opening in the middle for the sleeve to pass through.

[0008] Furthermore, two symmetrical grooves are provided on both sides of the outer wall of the annular plate, and a second spring is fixedly connected to the inner wall of the groove. A locking rod is fixedly connected to the other end of the second spring, and a locking hole for locking the locking rod is provided on the top side wall of the transparent cover.

[0009] Furthermore, the material discharge port is located inside the transparent cover.

[0010] Furthermore, the transparent cover is smaller than the inclined hopper, and the discharge port is located inside the inclined hopper.

[0011] Furthermore, the collection box is located directly below the discharge port.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model relates to a concrete strength testing device, comprising a platform, a top plate, a hydraulic telescopic rod, a sleeve, a pressure plate, a first spring, a horizontal plate, and a transparent cover. When the hydraulic rod lowers the pressure plate to press and test the concrete sample, the horizontal plate and the transparent cover descend synchronously. When the bottom of the transparent cover contacts the upper surface of the platform, the pressure plate can continue to descend and press the concrete sample, ensuring that the transparent cover remains outside the concrete sample throughout the testing process, preventing the concrete sample from scattering when broken. The raising and lowering of the transparent cover is synchronized with the hydraulic telescopic rod, making the raising and lowering of the transparent cover simpler and more convenient. Furthermore, if the transparent cover is damaged, it can be removed and replaced from the lower surface of the horizontal plate, making subsequent maintenance simple and convenient.

[0014] 2. When in use, this utility model is a concrete strength testing device, which is equipped with a platform, a discharge port and an inclined hopper. When the concrete sample block is broken, the fragments can be swept into the discharge port, so that the fragments pass through the discharge port and enter the collection box for collection. No electric components are set at the bottom of the platform, so as to avoid the fragments affecting the operation of the electric components. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : Overall perspective view of this utility model;

[0017] Figure 2 : Overall sectional view of this utility model;

[0018] Figure 3 The present utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 The present utility model Figure 2 Enlarged view of section B in the middle.

[0020] The attached figures are labeled as follows:

[0021] 1. Platform; 2. Support rod; 3. Top plate; 4. Hydraulic telescopic rod; 41. End plate; 5. Sleeve; 6. Pressure sensor; 7. Pressure plate; 8. First spring; 9. Horizontal plate; 91. Reserved opening; 92. Annular plate; 93. Groove; 94. Second spring; 95. Locking rod; 10. Transparent cover; 101. Locking hole; 11. Inclined hopper; 12. Side plate; 13. Bottom plate; 14. Collection box; 15. Control cabinet; 16. Discharge port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-4 As shown, a concrete strength testing device is disclosed, comprising a platform 1, with multiple support rods 2 fixed to one side of the upper surface of the platform 1, and a top plate 3 fixedly connected to the top ends of the multiple support rods 2. A hydraulic telescopic rod 4 is installed in the middle of the top plate 3, and an end plate 41 is fixedly connected to the bottom telescopic end of the hydraulic telescopic rod 4. A sleeve 5 is slidably connected to the surface of the end plate 41, and a pressure plate 7 is fixedly connected to the lower surface of the sleeve 5. First springs 8 are fixedly connected to both sides of the upper surface of the pressure plate 7, and a horizontal plate 9 is fixedly connected to the top ends of the two first springs 8. An annular plate 92 is fixed to the side of the lower surface of the horizontal plate 9, and a detachable transparent cover 10 is fixedly fitted to the outer surface of the annular plate 92. A material discharge port 16 is opened on the side of the platform 1 near the transparent cover 10, and an inclined bucket 11 is fixed to the upper surface of the platform 1. Side plates 12 are fixed to both sides of the lower surface of the platform 1, and a bottom plate 13 is fixed between the two side plates 12. A collection box 14 is placed on the upper surface of the bottom plate 13, and a control cabinet 15 is installed on the upper surface of the platform 1.

[0024] A pressure sensor 6 is installed on the inner bottom wall of the sleeve 5, and the pressure measuring end of the pressure sensor 6 is in contact with the lower surface of the end plate 41. Both the pressure sensor 6 and the hydraulic telescopic rod 4 are electrically connected to the control cabinet 15.

[0025] In this embodiment, the pressure sensor 6 is a Hualan Haidian CZL202. The control cabinet 15 is equipped with a processor. The processor processes the pressure value detected by the pressure sensor 6 and displays the pressure value on the display screen on the surface of the control cabinet 15. When the hydraulic telescopic rod 4 extends and drives the end plate 41 to descend, the sleeve 5 and the pressure plate 7 will descend synchronously. When the pressure plate 7 squeezes the concrete sample block, the pressure sensor 6 can monitor the pressure in real time and the pressure value will be fed back to the control cabinet 15. When the pressure value decreases instantly, it indicates that the concrete is broken. The control cabinet 15 can record the maximum pressure value.

[0026] The horizontal plate 9 has a reserved opening 91 in the middle for the sleeve 5 to pass through.

[0027] By setting a reserved opening 91, the horizontal plate 9 can move up and down outside the sleeve 5.

[0028] Two symmetrical grooves 93 are provided on both sides of the outer wall of the annular plate 92, and a second spring 94 is fixedly connected to the inner wall of the groove 93. A locking rod 95 is fixedly connected to the other end of the second spring 94. A locking hole 101 for locking the locking rod 95 is provided on the top side wall of the transparent cover 10.

[0029] Under the elastic force of the second spring 94, the second spring 94 will squeeze the locking rod 95 into the locking hole 101, thereby fixing the transparent cover 10. When the transparent cover 10 needs to be replaced, the locking rod 95 is squeezed to disengage from the locking hole 101, and then the transparent cover 10 can be removed from the surface of the annular plate 92. Then, a new transparent cover 10 can be replaced and fixed on the surface of the annular plate 92.

[0030] The discharge port 16 is located inside the transparent cover 10. The collection box 14 is located directly below the discharge port 16.

[0031] When the pressure plate 7 presses the concrete sample block, the broken sample block will be inside the transparent cover 10 to prevent the fragments from flying everywhere, and the broken sample block can just pass through the discharge port 16 and fall into the collection box 14.

[0032] The transparent cover 10 is smaller than the inclined hopper 11, and the discharge port 16 is located inside the inclined hopper 11. If the broken sample does not pass through the discharge port 16, it will be located on the surface of the platform 1 and inside the inclined hopper 11, making it easier to sweep the fragments into the discharge port 16 later.

[0033] Working principle: A concrete sample is placed on the surface of the platform 1, between the two discharge ports 16. The hydraulic telescopic rod 4 is activated, causing the pressure plate 7 to descend. Simultaneously, the first spring 8 and the horizontal plate 9 also descend, causing the transparent cover 10 to descend synchronously. When the bottom of the transparent cover 10 contacts the upper surface of the platform 1, the pressure plate 7 continues to descend until it contacts the upper surface of the concrete sample. As the pressure increases, the transparent cover 10 remains outside the concrete sample. When the concrete sample breaks, the fragments are blocked by the transparent cover 10. Some fragments pass through the discharge ports 16 and fall into the collection box 14, while others remain on the upper surface of the platform 1. After testing, the hydraulic telescopic rod 4 is shortened, causing the pressure plate 7 and the transparent cover 10 to move upwards and reset. The remaining fragments are then swept into the discharge ports 16. At this time, the control cabinet 15 records the maximum pressure value of the concrete sample before breaking, detected by the pressure sensor 6. This is used to determine the strength of the concrete sample.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A concrete strength testing device, comprising a platform (1), characterized in that: Multiple support rods (2) are fixed to one side of the upper surface of the platform (1). The top ends of the multiple support rods (2) are fixedly connected to a top plate (3). A hydraulic telescopic rod (4) is installed in the middle of the top plate (3). An end plate (41) is fixedly connected to the bottom telescopic end of the hydraulic telescopic rod (4), and a sleeve (5) is slidably connected to the surface of the end plate (41). A pressure plate (7) is fixedly connected to the lower surface of the sleeve (5). A first spring (8) is fixedly connected to both sides of the upper surface of the pressure plate (7). A cross plate (9) is fixedly connected to the top ends of the two first springs (8). A ring plate (92) is fixed on the side of the lower surface of the horizontal plate (9). A detachable transparent cover (10) is fixedly sleeved on the outer surface of the ring plate (92). A material discharge port (16) is opened on the side of the platform (1) near the transparent cover (10). An inclined bucket (11) is fixed on the upper surface of the platform (1). Side plates (12) are fixed on both sides of the lower surface of the platform (1). A bottom plate (13) is fixed between the two side plates (12). A collection box (14) is placed on the upper surface of the bottom plate (13). A control cabinet (15) is installed on the upper surface of the platform (1).

2. The concrete strength testing device according to claim 1, characterized in that: A pressure sensor (6) is installed on the inner bottom wall of the sleeve (5), and the pressure measuring end of the pressure sensor (6) is attached to the lower surface of the end plate (41). The pressure sensor (6) and the hydraulic telescopic rod (4) are both electrically connected to the control cabinet (15).

3. The concrete strength testing device according to claim 1, characterized in that: The horizontal plate (9) has a reserved opening (91) in the middle for the sleeve (5) to pass through.

4. The concrete strength testing device according to claim 1, characterized in that: The outer side wall of the annular plate (92) has two symmetrical grooves (93) on both sides, and a second spring (94) is fixedly connected to the inner side wall of the groove (93). The other end of the second spring (94) is fixedly connected to a locking rod (95). The top side wall of the transparent cover (10) has a locking hole (101) for locking the locking rod (95).

5. The concrete strength testing device according to claim 1, characterized in that: The material discharge port (16) is located inside the transparent cover (10).

6. The concrete strength testing device according to claim 1, characterized in that: The transparent cover (10) is smaller than the inclined bucket (11), and the discharge port (16) is located inside the inclined bucket (11).

7. The concrete strength testing device according to claim 1, characterized in that: The collection box (14) is located directly below the discharge port (16).

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