A construction temperature measuring device for a concrete raft foundation

Abstract

The utility model relates to raft foundation temperature measurement technical field, specifically disclose a kind of construction temperature measuring device of concrete raft foundation, including device ontology, the side of device ontology is connected with first sleeve pipe;The inside of first sleeve pipe is sleeved with second sleeve pipe, and the detection end of temperature sensor is arranged in second sleeve pipe;Second sleeve pipe is connected with first spring in first sleeve pipe, and one end of second sleeve pipe is equipped with first motor by cross plate, and the output of first motor is equipped with scraper, and scraper is attached to the detection end of temperature sensor.The utility model is retreated after detection, and the detection end of temperature sensor is attached to the detection end of temperature sensor under the elastic force of first spring of scraper, and first motor is started to make the detection end of temperature sensor of scraper clean, can avoid the problem of insufficient detection accuracy of temperature sensor subsequently.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement technology for raft foundations, specifically to a construction temperature measurement device for concrete raft foundations. Background Technology

[0002] A raft foundation is an integral structure consisting of a base slab, beams, etc. For buildings with large loads and weak foundation bearing capacity, a concrete raft slab is often used to bear the building load. A concrete raft foundation refers to a raft foundation made of concrete commonly used in building construction, and large-volume raft foundations are frequently used in construction. Due to the large size, dense reinforcement, and large amount of concrete used in large-volume raft foundations, the heat of hydration of cement during the hardening process (the reaction between cement and water releases heat) causes a rapid rise in the internal temperature of the raft foundation, creating a significant temperature difference with the surface, thus generating thermal stress and shrinkage stress. When the generated thermal stress and shrinkage stress exceed the tensile strength of the concrete, it can easily lead to through-cracks, seriously affecting the structural durability and safety. Therefore, it is necessary to measure the temperature of large-volume raft foundations during the hardening process to monitor the hardening process.

[0003] In the traditional construction of large-volume raft foundations, when temperature measurement equipment is used, concrete residue adheres to the sensor surface after contact with the concrete. If this residue is not cleaned in time, it will gradually accumulate, thereby changing the heat conduction performance of the sensor and seriously interfering with the accuracy of subsequent detection, resulting in insufficient temperature measurement accuracy and stability of the temperature measurement equipment. Utility Model Content

[0004] This invention provides a construction temperature measurement device for concrete raft foundations to solve the problems in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A construction temperature measurement device for a concrete raft foundation includes a device body with a first sleeve connected to its side; a second sleeve is fitted inside the first sleeve, and the first sleeve is connected to the second sleeve via a first spring; a first motor is mounted on one end of the second sleeve via a cross plate, and a scraper is mounted on the output end of the first motor; a temperature sensor is also included, with its detection end located inside the second sleeve, and the scraper abutting against the detection end of the temperature sensor; a pushing structure is also included, which pushes the detection end of the temperature sensor to press against the scraper, thereby causing the second sleeve and the detection end of the temperature sensor to pass through the outer end of the first sleeve together; the first spring provides elastic force to cause the scraper to press against the detection end of the temperature sensor.

[0006] Furthermore, the detection end of the temperature sensor is round, and the scraper is an arc-shaped scraper, which is used to conform to the round shape of the detection end of the temperature sensor.

[0007] Furthermore, the outer end of the first sleeve is hinged with an upper baffle and a lower baffle, which together seal the outer end of the first sleeve. The outer end of the first sleeve is also provided with an upper fixing plate and a lower fixing plate. The upper fixing plate is connected to the upper baffle via a second spring, and the lower fixing plate is connected to the lower baffle via another second spring. The second spring provides elastic force, causing the upper baffle and the lower baffle to abut against the outer end of the first sleeve to seal the outer end of the first sleeve.

[0008] Furthermore, the first sleeve is provided with multiple sleeves, and each first sleeve is provided with a temperature sensor. The multiple temperature sensors are pushed together by the pushing structure.

[0009] Furthermore, the device body is a tubular structure, and the axis of the device body is perpendicular to the axis of the first sleeve; the pushing structure is a second motor installed in the device body, the second motor is connected to a moving plate, multiple temperature sensors are all set on the moving plate, and the second motor controls the moving plate to move along the direction of the first sleeve; the control switch of the second motor is located on the top of the device body.

[0010] Furthermore, the upper and lower ends of the device body are respectively provided with limiting rods, the limiting rod at the upper end of the device body passes through the upper end of the moving plate, and the limiting rod at the lower end of the device body passes through the lower end of the moving plate.

[0011] Furthermore, an auxiliary disk is installed on the main body of the device.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects: By setting up a device body and a first sleeve, with a second sleeve fitted inside the first sleeve, the detection end of the temperature sensor is located inside the second sleeve. This isolates the temperature sensor from the outside environment when not in use, preventing interference with its detection. A pushing structure moves the detection end of the temperature sensor to the outside of the first sleeve. Once the detection end of the temperature sensor contacts the concrete, the detection function of this invention is completed.

[0013] After the test is completed, the detection end of the temperature sensor retracts, and the scraper, under the elastic force of the first spring, presses tightly against the detection end of the temperature sensor. The first motor is then started to clean the detection end of the temperature sensor with the scraper, which can avoid the problem of insufficient detection accuracy of the temperature sensor in the future. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present utility model.

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Figure 3 for Figure 2 Enlarged view of point A.

[0017] Figure 4 for Figure 3 Enlarged view of point B.

[0018] The labels in the diagram are as follows: 1-device body, 2-auxiliary disc, 3-control switch, 4-moving plate, 5-temperature sensor, 6-first sleeve, 7-second sleeve, 8-first spring, 9-cross plate, 10-first motor, 11-bow-shaped scraper, 12-upper fixed plate, 13-lower fixed plate, 14-second spring, 15-upper baffle, 16-lower baffle, 17-second motor, 18-limiting rod. Detailed Implementation

[0019] 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, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0020] like Figure 1 , Figure 2 As shown, a construction temperature measurement device for a concrete raft foundation includes a device body 1, with a first sleeve 6 connected to the side of the device body 1; a second sleeve 7 is sleeved inside the first sleeve 6, and the first sleeve 6 is connected to the second sleeve 7 by a first spring 8; a first motor 10 is installed at one end of the second sleeve 7 via a cross plate 9, and a scraper is installed at the output end of the first motor 10; a temperature sensor 5 is also included, with the detection end of the temperature sensor 5 located inside the second sleeve 7, and the scraper adhering to the detection end of the temperature sensor 5; a pushing structure is also included, which is used to push the detection end of the temperature sensor 5 to squeeze the scraper, thereby causing the second sleeve 7 and the detection end of the temperature sensor 5 to pass through the outer end of the first sleeve 6 together; the first spring 8 provides elastic force to make the scraper squeeze the detection end of the temperature sensor 5.

[0021] Temperature measurement of a raft foundation during the hardening process requires inserting the sensing end of temperature sensor 5 into the concrete. At this stage, the concrete is not yet fully hardened, causing concrete residue to adhere to the sensing end of temperature sensor 5, thus affecting the accuracy of subsequent measurements. In this invention, temperature sensor 5 is housed within the device body 1, which separates the concrete from the sensor 5. A pushing structure pushes temperature sensor 5, causing its sensing end to press against a scraper. Continuous pushing forces temperature sensor 5, originally within the device body 1, to emerge from the first sleeve 6 along with the second sleeve 7. After emerging, the sensing end of temperature sensor 5 and the second sleeve 7 are inserted into the unhardened concrete. Since the second sleeve 7 is unsealed, the sensing end of temperature sensor 5 contacts the concrete for measurement. After the test is completed, the control push structure pulls the temperature sensor 5 back, moving it into the device body 1. Meanwhile, the second sleeve 7 is pushed into the device body 1 by the elastic force of the first spring 8. The scraper connected to the second sleeve 7 is pressed against the detection end surface of the temperature sensor 5, causing the second sleeve 7, scraper, and temperature sensor 5 to move synchronously into the device body 1. When the temperature sensor 5 retracts into the device body 1, the scraper adheres to the detection end of the temperature sensor 5, activating the first motor 10. The scraper cleans the detection end of the temperature sensor 5, removing any residue and preventing insufficient detection accuracy in subsequent tests. The control switch 3 of the first motor 10 is mounted on the device body 1 for easy starting. The control switch 3 is connected to the first motor 10 via a wire passing through the first sleeve 6 and the second sleeve 7, with sufficient wiring slack to ensure the first motor 10 is not restricted during movement. Driven by the first motor 10, the scraper cleans the detection end of the temperature sensor 5. The cleaned residue is scraped onto the inner wall of the second sleeve 7, without affecting the temperature sensor 5. The next temperature detection can then be initiated directly. After completing the entire temperature detection process for the raft foundation, the second sleeve 7 can be disassembled for cleaning, restoring the device and improving detection efficiency and accuracy. The first motor 10 is a waterproof motor. During operation, the output end of the first motor 10 shakes off residue, ensuring no residue remains at the output end and thus does not affect its subsequent operation. The waterproof motor features a seamless design, with static sealing mechanisms at the joint surfaces of the front and rear end covers and the outer shell, and dynamic sealing mechanisms between the motor shaft and the shaft hole. Combined with anti-corrosion material manufacturing processes, long-term waterproof stability is ensured. The waterproof motor is chosen to ensure that uncured concrete does not flow into the first motor 10 and cause any impact.

[0022] like Figure 3 , Figure 4 As shown, further, the detection end of the temperature sensor 5 is round-headed, and the scraper is an arc-shaped scraper 11, which is used to conform to the round-headed shape of the detection end of the temperature sensor 5. The round-headed temperature sensor 5 has more effective detection surface, achieving better detection results. The arc-shaped scraper 11 is strip-shaped and conforms to the detection end of the temperature sensor 5. When stationary, the arc-shaped scraper 11 does not completely cover the detection end of the temperature sensor 5, ensuring that the temperature sensor 5 can complete the detection smoothly. When rotating, the arc-shaped scraper 11 can cover the entire detection end of the temperature sensor 5, cleaning the entire detection end.

[0023] Furthermore, an upper baffle 15 and a lower baffle 16 are respectively hinged to the outer end of the first sleeve 6. The upper baffle 15 and the lower baffle 16 close together to seal the outer end of the first sleeve 6. An upper fixing plate 12 and a lower fixing plate 13 are also provided at the outer end of the first sleeve 6. The upper fixing plate 12 is connected to the upper baffle 15 through a second spring 14, and the lower fixing plate 13 is connected to the lower baffle 16 through another second spring 14. The second spring 14 provides elastic force so that the upper baffle 15 and the lower baffle 16 abut against the outer end of the first sleeve 6 to seal the outer end of the first sleeve 6. The upper baffle 15 and the lower baffle 16 close together to seal the outer end of the first sleeve 6. Under the elastic force of the second spring 14, the upper baffle 15 and the lower baffle 16 abut against each other and jointly seal the outer end of the first sleeve 6. This allows the temperature sensor 5 to be isolated from the outside world by the upper baffle 15 and the lower baffle 16 during the non-detection stage, preventing dust, slag, gravel, and other factors in the construction environment from affecting the temperature sensor 5. During the detection stage, when the temperature sensor 5 and the second sleeve 7 are pushed outward, the upper baffle 15 and the lower baffle 16 are squeezed, causing them to unfold. This allows the temperature sensor 5 and the second sleeve 7 to be pushed outward. When the temperature sensor 5 and the second sleeve 7 retract, the upper baffle 15 and the lower baffle 16, under the elastic force of the second spring 14, complete the sealing of the outer end of the first sleeve 6.

[0024] Note: The first spring 8 can be installed at any position along the circumference of the second sleeve 7, and is not limited to this position. Figure 3 The installation position allows the first spring 8 to be installed on the left and right sides of the second sleeve 7 to avoid contact between the first spring 8 and the upper baffle 15 and the lower baffle 16, thereby avoiding interference.

[0025] Furthermore, multiple first sleeves 6 are provided, each containing a temperature sensor 5. These multiple temperature sensors 5 are pushed together by the aforementioned pushing structure. The multiple temperature sensors 5 are located at different positions on the device body 1. Activating the pushing structure extends all the temperature sensors 5 into the concrete for detection. By detecting the concrete in the same area using multiple temperature sensors 5, multiple reference values ​​are obtained. Using these multiple data points to determine the concrete temperature in the same area reduces errors in concrete temperature detection and improves the accuracy of concrete temperature detection.

[0026] Furthermore, the device body 1 is a tubular structure, and its axial direction is perpendicular to the axial direction of the first sleeve 6. The pushing structure is a second motor 17 installed inside the device body 1. The second motor 17 is connected to a moving plate 4, and multiple temperature sensors 5 are all mounted on the moving plate 4. The second motor 17 controls the moving plate 4 to move along the direction of the first sleeve 6. The control switch 3 of the second motor 17 is located on the top of the device body 1. The control switch 3 can control the first motor 10 and the second motor 17 respectively. During testing, it is necessary to ensure that multiple temperature sensors 5 are inserted into the concrete simultaneously. Setting the device body 1 as a tubular structure and laying the tubular device body 1 flat ensures that multiple temperature sensors 5 can be inserted into the concrete more conveniently and simultaneously.

[0027] Furthermore, limit rods 18 are respectively provided at the upper and lower ends of the device body 1. The limit rod 18 at the upper end of the device body 1 passes through the upper end of the moving plate 4, and the limit rod 18 at the lower end of the device body 1 passes through the lower end of the moving plate 4. The limit rods 18 are provided to ensure that both ends of the moving plate 4 remain stable during the pushing process of the second motor 17, thereby ensuring that multiple temperature sensors 5 can be simultaneously inserted into the concrete for detection, improving the accuracy of the detection data.

[0028] Furthermore, an auxiliary plate 2 is installed on the main body 1 of the device. The auxiliary plate 2 facilitates the operation of the staff, thereby pressing the main body 1 of the device into the concrete.

[0029] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0030] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A construction temperature measuring device for a concrete raft foundation, characterized in that: Includes device body (1), and the side of device body (1) is connected to a first sleeve (6). The first sleeve (6) is fitted with a second sleeve (7) inside, and the first sleeve (6) is connected to the second sleeve (7) through a first spring (8); One end of the second sleeve (7) is equipped with a first motor (10) via a cross plate (9), and a scraper is installed at the output end of the first motor (10); It also includes a temperature sensor (5), the detection end of the temperature sensor (5) is set inside the second sleeve (7), and the scraper is attached to the detection end of the temperature sensor (5); It also includes a pushing structure, which is used to push the detection end of the temperature sensor (5) to squeeze the scraper, so that the second sleeve (7) and the detection end of the temperature sensor (5) pass through the outer end of the first sleeve (6) together; The first spring (8) provides elastic force to cause the scraper to squeeze the detection end of the temperature sensor (5).

2. The construction temperature measuring device for a concrete raft foundation according to claim 1, characterized in that: The detection end of the temperature sensor (5) is round, and the scraper is an arc-shaped scraper (11). The arc-shaped scraper (11) is used to fit the round shape of the detection end of the temperature sensor (5).

3. The construction temperature measuring device for a concrete raft foundation according to claim 1, characterized in that: The outer end of the first sleeve (6) is hinged with an upper baffle (15) and a lower baffle (16), which together seal the outer end of the first sleeve (6). The outer end of the first sleeve (6) is also provided with an upper fixing plate (12) and a lower fixing plate (13). The upper fixing plate (12) is connected to the upper baffle (15) by a second spring (14), and the lower fixing plate (13) is connected to the lower baffle (16) by another second spring (14). The second spring (14) provides elastic force, causing the upper baffle (15) and the lower baffle (16) to abut against the outer end of the first sleeve (6) to seal the outer end of the first sleeve (6).

4. The construction temperature measuring device for a concrete raft foundation according to claim 1, characterized in that: The first sleeve (6) is provided with multiple units, and each first sleeve (6) is provided with a temperature sensor (5). The multiple temperature sensors (5) are pushed together by the pushing structure.

5. The construction temperature measuring device for a concrete raft foundation according to claim 4, characterized in that: The device body (1) is a tubular structure, and the axial direction of the device body (1) is perpendicular to the axial direction of the first sleeve (6). The pushing structure is a second motor (17) installed in the device body (1). The second motor (17) is connected to a moving plate (4). Multiple temperature sensors (5) are all set on the moving plate (4). The second motor (17) controls the moving plate (4) to move along the direction of the first sleeve (6). The control switch (3) of the second motor (17) is located on the top of the device body (1).

6. The construction temperature measuring device for a concrete raft foundation according to claim 5, characterized in that: Limiting rods (18) are respectively provided at the upper and lower ends of the device body (1). The limiting rod (18) at the upper end of the device body (1) passes through the upper end of the moving plate, and the limiting rod (18) at the lower end of the device body (1) passes through the lower end of the moving plate.

7. The construction temperature measuring device for a concrete raft foundation according to claim 1, characterized in that: An auxiliary disk (2) is installed on the main body (1) of the device.

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