Concrete hardness detection device

Abstract

The utility model discloses a concrete hardness detection device which comprises a box body and a box door, the front surface of the box body is open, the box door is positioned at the open position of the front surface of the box body, the box door is hinged with the contact position of the left side of the box body, an observation panel convenient for observation is arranged on the front surface of the box door, and a controller is arranged on the right side of the front surface of the box door; a hydraulic cylinder penetrating through the box body is vertically arranged on the top face of the box body, a pressure sensor is arranged at the lower end of a telescopic rod of the hydraulic cylinder, and a temperature sensor is arranged below the back face of the box door. According to the utility model, when a concrete sample block is fractured, the four limiting plates play a role in limiting and protecting the fractured sample block, so that the fractured sample block can be prevented from splashing upwards; by placing the concrete sample block in a high-temperature environment, the situation that the concrete sample block is actually in a road environment in summer can be simulated, and the situation of the lowest extrusion force borne by the concrete sample block can be detected more objectively and actually.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically a concrete hardness testing device. Background Technology

[0002] Alkali-activated concrete is a type of green concrete that utilizes alkaline activators to activate the latent activity of materials such as industrial waste or natural minerals, forming a hardened paste through a chemical reaction. It's necessary to explain its differences from traditional cement concrete, as well as the types of activators and reaction mechanisms; it boasts high strength, good durability, corrosion resistance, high-temperature resistance, fast curing speed, and environmental friendliness. In particular, its low carbon emissions and resource recycling characteristics align with the needs of sustainable development. Due to its excellent performance, alkali-activated concrete has a wide range of applications, including building construction, underground engineering, marine engineering, road engineering, and precast components. After concrete production, its hardness is typically tested to determine if it meets building material construction standards. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a concrete hardness testing device to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0005] This utility model provides a concrete hardness testing device, including a box body and a box door. The front of the box body is open, and the box door is located at the open front of the box body. The box door is hinged to the left side of the box body. An observation panel for easy observation is provided on the front of the box door, and a controller is provided on the right side of the front of the box door.

[0006] A hydraulic cylinder is vertically installed on the top surface of the box, penetrating the box. A pressure sensor is installed at the lower end of the extension rod of the hydraulic cylinder. A temperature sensor is installed on the lower back of the box door. Both the pressure sensor and the temperature sensor are connected to a controller.

[0007] Two electric heating tubes are symmetrically arranged on the inner walls of both sides of the box. Four support seats are arranged on the inner bottom surface of the box. The four support seats are symmetrically distributed front and back and left and right. A screw is vertically arranged on the upper surface of the support seat. The screw is threaded to the support seat. A limit plate is provided at the upper end of the screw.

[0008] The lower end of the telescopic rod of the hydraulic cylinder is positioned opposite the center of the bottom surface of the housing, and the controller controls the connected hydraulic cylinder.

[0009] Preferably, the front open surface of the box body is provided with a sealing groove, and the back edge of the box door is provided with a sealing ring. When the box door is closed, the sealing ring is engaged in the sealing groove.

[0010] Preferably, the heating element is arranged along the depth direction of the housing, and the heating element is located at the middle position of the inner side wall of the housing.

[0011] Preferably, the limiting plate is strip-shaped, parallel to the support base, and located directly above the support base.

[0012] Preferably, four reinforcing ribs are provided between the surface of the hydraulic cylinder and the top surface of the housing.

[0013] Preferably, a handle is provided on the right side of the front of the cabinet door.

[0014] Preferably, the four reinforcing ribs are evenly spaced and distributed circumferentially around the surface of the hydraulic cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Place the concrete sample block on the inner bottom surface of the box. The lower surfaces of the four corners of the concrete sample block rest on the four support seats respectively. Rotating the screw can adjust the height of the limiting plate so that the distance between the limiting plate and the upper surface of the concrete sample block is appropriate.

[0017] After the chamber door is closed, the sealing ring is perfectly embedded in the sealing groove, which ensures a good seal between the chamber door and the chamber body. When the heating element is turned on, it can raise the position inside the chamber and raise the temperature inside the chamber to the ambient temperature of the road surface in summer. This can simulate the state of the concrete sample block in the road surface environment in summer.

[0018] Then the hydraulic cylinder extends, and the extension rod of the hydraulic cylinder continuously squeezes the concrete sample block. The pressure detected by the pressure sensor increases in real time and the pressure data is displayed on the controller's screen. The situation of the concrete sample block being squeezed can be observed through the observation panel until the extension rod of the hydraulic cylinder cracks the concrete sample block. When it cracks, the controller can record the pressure value detected by the pressure sensor, which is the maximum pressure value that the concrete sample block can withstand.

[0019] When the concrete sample block is crushed, the four limiting plates play a limiting and protective role for the broken sample block, which can prevent the broken sample block from splashing upwards; by placing the concrete sample block in a high-temperature environment, it is possible to simulate the actual conditions in the summer road environment, and to more objectively and realistically detect the minimum compressive force on the concrete sample block. Attached Figure Description

[0020] Figure 1 This is a perspective view of the entire utility model;

[0021] Figure 2This is a three-dimensional view of the box door of this utility model after it is opened;

[0022] Figure 3 This is a perspective view of the support base, screw, and limiting plate of this utility model.

[0023] In the diagram: 1. Box body; 11. Hydraulic cylinder; 12. Reinforcing rib plate; 13. Sealing groove; 14. Heating element; 15. Pressure sensor; 16. Support base; 17. Screw; 18. Limiting plate; 2. Box door; 21. Observation panel; 22. Handle lever; 23. Controller; 24. Temperature sensor; 25. Sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1-3 As shown, a concrete hardness testing device includes a box body 1 and a box door 2. The front of the box body 1 is open, and the box door 2 is located at the front open position of the box body 1. The box door 2 and the left side of the box body 1 are hinged. An observation panel 21 for easy observation is provided on the front of the box door 2, and a controller 23 is provided on the right side of the front of the box door 2.

[0027] A hydraulic cylinder 11 is vertically installed on the top surface of the box 1, penetrating the box 1. A pressure sensor 15 is installed at the lower end of the telescopic rod of the hydraulic cylinder 11. A temperature sensor 24 is installed at the lower back of the box door 2. Both the pressure sensor 15 and the temperature sensor 24 are connected to the controller 23.

[0028] Two electric heating tubes 14 are symmetrically arranged on the inner walls of both sides of the box 1. Four support seats 16 are arranged on the inner bottom surface of the box 1. The four support seats 16 are symmetrically distributed front and back and left and right. A screw 17 is vertically arranged on the upper surface of the support seat 16. The screw 17 is threadedly connected to the support seat 16. A limit plate 18 is arranged at the upper end of the screw 17.

[0029] The lower end of the telescopic rod of the hydraulic cylinder 11 is positioned at the center of the bottom surface inside the housing 1, and the controller 23 controls the connection of the hydraulic cylinder 11.

[0030] The front open surface of the box body 1 is provided with a sealing groove 13, and the back edge of the box door 2 is provided with a sealing ring 25. When the box door 2 is closed, the sealing ring 25 is embedded in the sealing groove 13.

[0031] The heating element 14 is arranged along the depth direction of the box body 1, and the heating element 14 is located in the middle of the inner side wall of the box body 1.

[0032] The limiting plate 18 is strip-shaped, parallel to the support base 16, and located directly above the support base 16.

[0033] Four reinforcing ribs 12 are provided between the surface of the hydraulic cylinder 11 and the top surface of the housing 1.

[0034] A handle 22 is provided on the right side of the front of the box door 2.

[0035] Four reinforcing ribs 12 are evenly spaced and distributed in a circular pattern around the surface of the hydraulic cylinder 11.

[0036] In summary: the concrete sample block is placed above the inner bottom surface of the box 1, and the lower surfaces of the four corners of the concrete sample block rest on the four support seats 16 respectively. Rotating the screw 17 can adjust the height position of the limiting plate 18 so that the distance between the limiting plate 18 and the upper surface of the concrete sample block is appropriate.

[0037] After the chamber door 2 is closed, the sealing ring 25 is just embedded in the sealing groove 13, so the sealing between the chamber door 2 and the chamber body 1 is good. After the electric heating tube 14 is turned on, it can raise the position inside the chamber body 1 and raise the temperature inside the chamber body 1 to the ambient temperature of the road surface in summer. This can simulate the state of the concrete sample block in the road surface environment in summer.

[0038] Then the hydraulic cylinder 11 extends, and the telescopic rod of the hydraulic cylinder 11 continuously squeezes the concrete sample block. The pressure detected by the pressure sensor 15 increases in real time and displays the pressure data on the display screen of the controller 23. The situation of the concrete sample block being squeezed is observed through the observation panel 21 until the telescopic rod of the hydraulic cylinder 11 cracks the concrete sample block. When it cracks, the controller 23 can record the pressure value detected by the pressure sensor 15, which is the maximum pressure value that the concrete sample block can withstand.

[0039] When the concrete sample block is crushed, the four limiting plates 18 provide limiting protection for the broken sample block, preventing the broken sample block from splashing upwards. By placing the concrete sample block in a high-temperature environment, the actual conditions in a summer road environment can be simulated, and the minimum compressive force on the concrete sample block can be detected more objectively and realistically.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concrete hardness detection device, characterized by: It includes box (1), box door (2), the front of the box (1) is open, the box door (2) is located in the front opening position of the box (1), the box door (2) and the left side of the box (1) are hinged, the front of the box door (2) is provided with an observation panel (21) for easy observation, the right side of the front of the box door (2) is provided with a controller (23); The top of the box (1) is vertically provided with a hydraulic cylinder (11) penetrating the box (1), the lower end of the telescopic rod of the hydraulic cylinder (11) is provided with a pressure sensor (15), the back of the box door (2) is provided with a temperature sensor (24), the pressure sensor (15) and the temperature sensor (24) are connected to the controller (23); The two side walls of the box (1) are symmetrically provided with two electric heating pipes (14), the inner bottom of the box (1) is provided with four support seats (16), the four support seats (16) are symmetrically distributed front and back and left and right, the upper surface of the support seat (16) is vertically provided with a screw rod (17), the screw rod (17) is threadedly connected with the support seat (16), and the upper end of the screw rod (17) is provided with a limiting plate (18); The lower end of the telescopic rod of the hydraulic cylinder (11) is opposite to the center position of the inner bottom of the box (1), and the controller (23) is connected to the hydraulic cylinder (11).

2. The concrete hardness detection device according to claim 1, characterized in that: The surface of the front opening of the box (1) is provided with a sealing groove (13), and the edge of the back of the box door (2) is provided with a sealing ring (25), when the box door (2) is closed, the sealing ring (25) is clamped in the sealing groove (13).

3. The concrete hardness detection device according to claim 1, characterized in that: The electric heating pipe (14) is arranged along the depth direction of the box (1), and the electric heating pipe (14) is arranged at the middle position of the inner side wall of the box (1).

4. The concrete hardness detection device of claim 1, wherein: The limiting plate (18) is strip-shaped, the limiting plate (18) is parallel to the support seat (16), and the limiting plate (18) is located directly above the support seat (16).

5. The concrete hardness detection device of claim 1, wherein: Four reinforcing rib plates (12) are arranged between the surface of the hydraulic cylinder (11) and the top of the box (1).

6. The concrete hardness detection device of claim 1, wherein: The right side of the front of the box door (2) is provided with a handle rod (22).

7. The concrete hardness detection device of claim 5, wherein: The four reinforcing rib plates (12) are equally spaced and circumferentially distributed on the surface of the hydraulic cylinder (11).

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