Real-time temperature monitoring device in concrete structure

Abstract

The invention discloses a real-time temperature monitoring device in a concrete structure, and belongs to the technical field of building engineering construction. Whether the temperature in concrete exceeds a temperature threshold value is judged by directly observing an indicator light; by arranging the cylindrical structure for mounting the thermistor during concrete pouring, the mounting position of the thermistor can be quickly and accurately determined, the thermistor is ensured to be only in contact with concrete after being mounted and not to be interfered by any other structures, and the temperature sensing accuracy of the thermistor is ensured; the vertical steel bars arranged and distributed in the concrete structure are used as mounting and positioning structures, so that the mounting positions and heights of the thermistors are uniform, the thermistors are not in contact with other articles, the detection precision of the thermistors can be ensured, and the accurate control of the real-time temperature in the concrete structure is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering construction, and particularly relates to a real-time temperature monitoring device in a concrete structure. Background Art

[0002] During the construction of concrete structures, the temperature inside the concrete rises due to the accumulation of heat generated by the cement hydration reaction. If not controlled, the temperature stress will exceed the tensile strength of the concrete and cause cracks. At present, the temperature monitoring device directly inserted into the concrete structure cannot guarantee whether it is in contact with the steel bars, nor can it ensure that the temperature monitoring devices with the same interface are evenly distributed in the same concrete structure, resulting in low temperature monitoring accuracy. It is impossible to judge the temperature inside the concrete structure in real time, quickly and accurately. In addition, the structure of the fixed detection device will occupy too much of the concrete structure, which will also cause the structural stability of the concrete itself to decrease. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a real-time temperature monitoring device in a concrete structure, which can accurately and quickly determine the real-time temperature changes in the concrete without affecting the concrete structure.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention includes an outer cylinder, an inner cylinder is slidably provided at the top center of the outer cylinder, the inner diameter of the inner cylinder is larger than the diameter of the vertical steel bars in the concrete, at least two baffle rods are provided at the bottom of the inner cylinder, the baffle rods are arranged horizontally, and also includes a thermistor, the thermistor is annular, the thermistor is fitted on the inner side of the bottom end of the outer cylinder, at least two elastic baffle pins are also provided on the inner side of the bottom end of the outer cylinder, the elastic baffle pins are supported on the lower side of the thermistor, the elastic baffle pins and the supporting surface of the thermistor are arranged in an inclined surface, the baffle rods are supported on the upper side of the thermistor, and the thermistor is provided with a power supply and an indicator light in series.

[0006] Furthermore, it also includes a fixed slide cylinder, a plurality of balls are arranged around the outer sides of the upper and lower ends of the fixed slide cylinder, a plurality of studs are threadedly connected around the outer sides of the upper and lower ends of the fixed slide cylinder, the fixed slide cylinder is sleeved on the vertical steel bars, the inner cylinder is slidably arranged on the outer side of the fixed slide cylinder, the balls are rolling and contacting the inner wall of the inner cylinder, and the studs are against the outer sides of the vertical steel bars.

[0007] Furthermore, the baffle rod is a straight rod structure whose end is hinged to the end of the inner tube. A baffle block is provided at the end of the inner tube. The baffle rod is blocked by the baffle block and is in a horizontal state. When the inner tube is retracted upward, the baffle rod rotates downward and is in a vertical state.

[0008] Furthermore, when the blocking rod is placed horizontally, a protrusion is provided on the lower side of the free end, and the protrusion is blocked on the inner side of the thermistor.

[0009] Furthermore, a vertical plate is provided at the top end of the outer tube, and a synchronization pin is provided through the vertical plate transversely. When the blocking rod and the elastic blocking pin clamp the thermistor, the synchronization pin is inserted into the side wall of the inner tube.

[0010] Furthermore, a through groove extending along the axis of the outer cylinder is provided around the side wall of the outer cylinder.

[0011] Furthermore, a baffle is provided at the top end of the inner cylinder to limit the extension distance of the inner cylinder.

[0012] The beneficial effects of the present invention are:

[0013] The present invention is used for real-time monitoring of the temperature in a concrete structure. By setting a thermistor and connecting a power supply and an indicator light in series to form an electric circuit, the resistance value of the thermistor changes with the increase and decrease of the temperature, and the brightness of the indicator light forming the path produces a difference in brightness with the change of the resistance, and then it can be judged whether the temperature in the concrete exceeds the temperature threshold by directly observing the indicator light; a plurality of thermistors can be installed in the concrete structure, and by observing the brightness of each indicator light, the position of the abnormal temperature rise of the concrete can be quickly determined and located, and then processing can be performed. In order to further ensure the high uniformity of the thermistors installed in the concrete structure, this device is provided with a cylindrical structure for installing the thermistors during concrete pouring, so as to quickly and accurately determine the installation position of the thermistors, ensure that the thermistors are only in contact with the concrete after installation, and are not interfered by any other structure, and ensure that the thermistors are In order to improve the temperature sensing accuracy of the thermistor, this device uses the vertical steel bars arranged and distributed in the concrete structure as the installation and positioning structure. The inner tube is sleeved on the vertical steel bars, and the outer tube is uniformly fixed in height through a suspended structure. The horizontal stop rod at the lower end of the inner tube and the elastic stop pin at the lower end of the outer tube initially clamp the thermistor, and then concrete can be poured. After the concrete is poured, the inner tube is moved down, and the stop rod presses down the thermistor. The thermistor overcomes the elastic stop pin and moves vertically out of the outer tube and is suspended in the concrete. After the thermistor is moved out, the inner tube is moved up, and the stop rod is away from the thermistor to ensure that the thermistor is in full contact with the concrete. Finally, the outer tube and the inner tube are slowly moved out to complete the installation of the thermistor. Through this installation method, several thermistors are suspended and installed in the concrete structure, and their height is unified and they do not touch other objects. The detection accuracy of several thermistors can be guaranteed, and the precise control of the real-time temperature in the concrete structure can be improved.

[0014] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0016] Figure 1 This is an overall schematic diagram of the outer cylinder and the inner cylinder of an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A sectional view of the

[0018] Figure 3 for Figure 1 A cross-sectional view at point B;

[0019] Figure 4 for Figure 3 CC section view;

[0020] Figure 5 This is a schematic diagram of the installation of a real-time temperature monitoring device according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of a completed real-time temperature monitoring device according to an embodiment of the present invention;

[0022] The markings in the attached drawings are as follows: 1. Outer cylinder; 11. Elastic stop pin; 12. Vertical plate; 13. Synchronous pin; 14. Through groove; 2. Inner cylinder; 21. Stop rod; 22. Stop block; 23. Protrusion; 24. Stop plate; 3. Thermistor; 4. Power supply; 5. Indicator light; 6. Fixed slide cylinder; 61. Ball bearing; 62. Stud; 7. Vertical reinforcement. DETAILED DESCRIPTION

[0023] The present invention discloses a real-time temperature monitoring device in a concrete structure. Figure 1 As shown, the device comprises an outer cylinder 1, and an inner cylinder 2 is slidably disposed at the top center of the outer cylinder 1. The inner diameter of the inner cylinder 2 is larger than the diameter of the vertical steel bars 7 in the concrete. Figure 2 As shown, the bottom end of the inner tube 2 is provided with three blocking rods 21, the blocking rods 21 are arranged horizontally, and also include a thermistor 3, the thermistor 3 is annular, the thermistor 3 is arranged in close contact with the inner side of the bottom end of the outer tube 1, and the inner side of the bottom end of the outer tube 1 is also provided with three elastic blocking pins 11, the elastic blocking pins 11 are supported on the lower side of the thermistor 3, the elastic blocking pins 11 and the supporting surface of the thermistor 3 are arranged in an inclined plane, and the blocking rods 21 are supported on the upper side of the thermistor 3, refer to Figure 6 The thermistor 3 is connected in series with a power supply 4 and an indicator light 5, referring to Figure 2 The connecting wire of the thermistor 3 is wound out from the bottom end of the outer tube 1 and extends upward along the outer tube 1.

[0024] This device is used to monitor the temperature in concrete structures in real time. Figure 5 and Figure 6 , by setting the thermistor 3, an electrical circuit is formed by connecting the power supply 4 and the indicator light 5 in series, the resistance value of the thermistor 3 changes with the increase and decrease of the temperature, and the brightness of the indicator light 5 forming the path produces a difference in light and dark with the change of the resistance, and then it can be judged by directly observing the indicator light 5 whether the temperature in the concrete exceeds the temperature threshold; a number of thermistors 3 can be installed in the concrete structure, and by observing the brightness of each indicator light 5, the abnormal position of the concrete temperature rise can be quickly determined and located, and then it can be processed. In order to further ensure the high uniformity of the thermistor 3 installed in the concrete structure, this device is set to install the thermistor 3 in a cylindrical structure during concrete pouring, so as to quickly and accurately determine the installation position of the thermistor 3, ensure that the thermistor 3 is only in contact with the concrete after installation, and is not interfered by any other structure, so as to ensure the temperature sensing accuracy of the thermistor 3, this device exists in the concrete The vertical steel bars 7 arranged and distributed in the soil structure serve as the installation and positioning structure. The inner tube 2 is sleeved on the vertical steel bars 7, and the outer tube 1 is uniformly fixed in height through the suspended structure. The horizontal stop rod at the lower end of the inner tube 2 and the elastic stop pin 11 at the lower end of the outer tube 1 initially clamp the thermistor 3. At this time, concrete can be poured. After the concrete pouring is completed, the inner tube 2 is moved down, and the stop rod 21 presses down the thermistor 3. The thermistor 3 overcomes the elastic stop pin 11 and moves vertically out of the outer tube 1 and is suspended in the concrete. After the thermistor 3 is moved out, the inner tube 2 is moved up, and the stop rod 21 is away from the thermistor 3 to ensure that the thermistor 3 is in full contact with the concrete. Finally, the outer tube 1 and the inner tube 2 are slowly moved out to complete the installation of the thermistor 3. Through this installation method, several thermistors 3 are all suspended and installed in the concrete structure, and the height is unified and does not contact other objects. The detection accuracy of several thermistors 3 can be guaranteed, and the precise control of the real-time temperature in the concrete structure is improved.

[0025] In a further solution, Figure 3 and Figure 4 As shown, it also includes a fixed slide 6, three balls 61 are arranged around the outer sides of the upper and lower ends of the fixed slide 6, and three studs 62 are threadedly connected around the outer sides of the upper and lower ends of the fixed slide 6. The fixed slide 6 is sleeved on the vertical steel bar 7, and the inner tube 2 is slidably arranged on the outer side of the fixed slide 6. The balls 61 roll and contact the inner wall of the inner tube 2, and the studs 62 are against the outer side of the vertical steel bar 7.

[0026] This structure further ensures the installation accuracy of the thermistor 3. Before installing the inner tube 2, a fixed slide 6 is sleeved on the vertical steel bar 7. The fixed slide 6 is locked by the stud 62 to fix the fixed slide 6 on the vertical steel bar 7. The inner tube 2 is slidably arranged outside the fixed slide 6. When the thermistor 3 is moved down by the inner tube 2, the inner tube 2 will not shake and will not be offset by the influence of concrete, thereby ensuring the horizontal state of the thermistor 3 and preventing the thermistor 3 from contacting the vertical steel bar 7 during the installation process.

[0027] In a further solution, Figure 2 As shown, the baffle rod 21 is a straight rod structure whose end is hinged to the end of the inner tube 2. A baffle block 22 is provided at the end of the inner tube 2. The baffle rod 21 is blocked by the baffle block 22 and is in a horizontal state. When the inner tube 2 is retracted upward, the baffle rod 21 rotates downward to a vertical state.

[0028] In this structure, the upward rotation of the gear lever is limited by the block 22, so that the gear lever is placed horizontally and clamps the thermistor 3 with the elastic stop pin 11. After the thermistor 3 is moved down by the inner cylinder 2, the inner cylinder 2 is moved up, and the gear lever 21 is rotated downward under the pressure of the concrete. During the upward movement of the inner cylinder 2, the gear lever reduces the hindrance to the movement of the inner cylinder 2, thereby ensuring the smooth removal of the inner cylinder 2.

[0029] In a further solution, Figure 2 As shown, when the blocking rod 21 is placed horizontally, a protrusion 23 is provided on the lower side of the free end, and the protrusion 23 is blocked on the inner side of the thermistor 3 .

[0030] By providing the protrusion 23 , the inner side of the thermistor 3 is blocked, so as to further avoid the displacement of the thermistor 3 when the thermistor 3 is moved downward, and avoid the contact between the thermistor 3 and the vertical steel bar 7 .

[0031] In a further solution, Figure 3 As shown, a vertical plate 12 is provided at the top of the outer tube 1, and a synchronization pin 13 is provided transversely through the vertical plate 12. When the blocking rod 21 and the elastic blocking pin 11 clamp the thermistor 3, the synchronization pin 13 is inserted into the side wall of the inner tube 2.

[0032] The synchronous connection between the outer cylinder 1 and the inner cylinder 2 by the synchronous pin 13 can avoid the misalignment between the outer cylinder 1 and the inner cylinder 2 during the pouring of concrete, thereby preventing the thermistor 3 from being pressed and moved.

[0033] In a further solution, Figure 1 As shown, a through groove 14 extending along the axis of the outer cylinder 1 is provided around the side wall of the outer cylinder 1 .

[0034] By providing the through groove 14, when pouring concrete, the concrete directly fills the inside of the outer tube 1 through the through groove 14. When the inner tube 2 and the outer tube 1 are pulled out, the concrete flowing into the top of the thermistor 3 can be reduced, the resistance of pulling out the outer tube 1 can be reduced, and the impact force of the flowing concrete on the thermistor 3 can be reduced, thereby avoiding displacement of the thermistor 3.

[0035] In a further solution, Figure 2 As shown, a baffle 24 is provided at the top end of the inner cylinder 2 to limit the extension distance of the inner cylinder 2 .

[0036] By providing the baffle 24, the downward movement distance of the inner cylinder 2 is limited, and the downward movement distance of the thermistor 3 is controlled.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A real-time temperature monitoring device in a concrete structure, characterized in that: The invention comprises an outer cylinder (1), wherein an inner cylinder (2) is slidably provided at the top center of the outer cylinder (1), wherein the inner diameter of the inner cylinder (2) is greater than the diameter of the vertical steel bars (7) in the concrete, and at least two blocking rods (21) are provided at the bottom end of the inner cylinder (2), wherein the blocking rods (21) are arranged transversely, and further comprises a thermistor (3), wherein the thermistor (3) is in an annular structure, wherein the thermistor (3) is arranged in close contact with the inner side of the bottom end of the outer cylinder (1), and at least two elastic blocking pins (11) are also provided at the inner side of the bottom end of the outer cylinder (1), wherein the elastic blocking pins (11) are supported on the lower side of the thermistor (3), wherein the supporting surfaces of the elastic blocking pins (11) and the thermistor (3) are arranged in an inclined plane, and the blocking rods (21) are supported on the upper side of the thermistor (3), and the thermistor (3) is provided with a power supply (4) and an indicator light (5) in series.

2. The real-time temperature monitoring device in a concrete structure according to claim 1, characterized in that: It also includes a fixed slide (6), wherein a plurality of balls (61) are arranged around the outer sides of the upper and lower ends of the fixed slide (6), and a plurality of studs (62) are threadedly connected around the outer sides of the upper and lower ends of the fixed slide (6). The fixed slide (6) is sleeved on the vertical steel bar (7), and the inner tube (2) is slidably arranged on the outer side of the fixed slide (6). The balls (61) roll and contact with the inner wall of the inner tube (2), and the studs (62) abut against the outer side of the vertical steel bar (7).

3. The real-time temperature monitoring device in a concrete structure according to claim 2, characterized in that: The blocking rod (21) is a straight rod structure whose end is hinged to the end of the inner tube (2). A blocking block (22) is provided at the end of the inner tube (2). The blocking rod (21) is blocked by the blocking block (22) and is in a horizontal state. When the inner tube (2) is retracted upward, the blocking rod (21) rotates downward to a vertical state.

4. The real-time temperature monitoring device in a concrete structure according to claim 3, characterized in that: When the blocking rod (21) is placed horizontally, a protrusion (23) is provided on the lower side of the free end, and the protrusion (23) is blocked on the inner side of the thermistor (3).

5. The real-time temperature monitoring device in a concrete structure according to claim 4, characterized in that: The top of the outer cylinder (1) is provided with a vertical plate (12), and a synchronization pin (13) is provided through the vertical plate (12) transversely. When the blocking rod (21) and the elastic blocking pin (11) clamp the thermistor (3), the synchronization pin (13) is inserted into the side wall of the inner cylinder (2).

6. The real-time temperature monitoring device in a concrete structure according to claim 5, characterized in that: A through groove (14) is provided around the side wall of the outer cylinder (1) and extends along the axis of the outer cylinder (1).

7. The real-time temperature monitoring device in a concrete structure according to claim 6, characterized in that: A baffle (24) is provided at the top end of the inner cylinder (2) for limiting the extension distance of the inner cylinder (2).

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