Fixing and protecting device for automatic temperature measuring element of mass concrete

Abstract

The application discloses a fixing and protecting device for automatic temperature measuring elements of mass concrete, which comprises a supporting steel bar welded in the inner cavity of a steel bar cage; a concrete temperature recorder is connected to the surface of the supporting steel bar through steel wire bundling; and a concrete temperature measuring wire is connected to the bottom of the concrete temperature recorder through a waterproof aviation plug. The probe is fixed by cooperation of the arc-shaped base one, the arc-shaped base two and the clamping block, physical isolation between the probe and the steel bar cage is realized, the steel bar clamping seat and the clamping piece are quickly clamped to the steel bar cage, the protective cover is buckled on the outer side of the base, the probe and the end of the concrete temperature measuring wire are wrapped, the multi-path temperature measuring wires are centrally penetrated into the metal pipe and are arranged along the supporting steel bar to the specified position, and the concrete temperature recorder is bundled and fixed above the supporting steel bar. The structure solves the problems of the traditional bundling, such as no heat insulation, easy displacement and damage of the probe and easy breakage of the cable, and guarantees the authenticity and reliability of the temperature measuring data.

Description

Technical Field

[0001] This invention belongs to the technical field of building construction monitoring equipment, and in particular relates to a device for fixing and protecting automated temperature measuring elements for large-volume concrete. Background Technology

[0002] A large-volume concrete temperature measuring instrument is a specialized instrument used to monitor internal temperature changes during the curing process of concrete. It typically consists of a temperature sensor, a data acquisition unit, and supporting analysis software. It can measure and record the temperature values ​​at different depths of the concrete in real time, preventing excessive internal and external temperature differences caused by the accumulation of hydration heat, thereby avoiding the formation of temperature cracks.

[0003] Currently, the most common way to fix temperature measuring elements in large-volume concrete construction is by direct binding. Workers usually use wire or tape to bind the temperature probe to the structural steel bars or special support frame, and lay the lead cable along the steel bars at will. Some construction sites also use simple plastic sleeves to wrap the probe to prevent cement slurry from directly contacting the probe. The cables are usually bundled in sections with cable ties and finally led to the monitoring terminal. However, the aforementioned existing technologies have significant shortcomings in practical applications. First, the direct binding method cannot achieve effective insulation between the probe and the reinforcing steel. The heat conduction of the metal reinforcing steel will seriously interfere with the temperature readings, resulting in the measured temperature not accurately reflecting the internal temperature of the concrete. Second, the binding fixation strength is insufficient. During concrete pouring and vibration, the probe is easily displaced, damaged, or even detached due to concrete impact or contact with the vibrator, causing distorted monitoring data. In addition, the unprotected lead-out cables are often pulled apart or crushed during rough construction, and the lines are messy and disorganized. Summary of the Invention

[0004] The purpose of this invention is to provide a fixing and protection device for automated temperature measuring elements in large-volume concrete. The technical problem to be solved is that the existing temperature measuring elements for large-volume concrete, which use direct binding, cannot achieve effective insulation, resulting in temperature measurement distortion. In addition, the fixing strength is insufficient and they are prone to displacement and damage during the pouring and vibration process. At the same time, the lead-out cables lack protection and are easily pulled off or crushed, resulting in unreliable monitoring data.

[0005] The technical solution of this invention to solve the above-mentioned technical problems is as follows: a fixing and protection device for an automated temperature measuring element for large-volume concrete, comprising a supporting steel bar welded to the inner cavity of a reinforcing cage; a concrete temperature recorder is connected to the surface of the supporting steel bar by steel wire binding; a concrete temperature measuring line is connected to the bottom of the concrete temperature recorder by a waterproof aviation plug; a probe is fixedly connected to the pre-embedded end of the concrete temperature measuring line; an arc-shaped base one is engaged on the upper part of the probe surface; two clamping plates are fixedly connected to both sides of the surface of the arc-shaped base one; a locking block is fixedly connected to both sides of the two clamping plates; an arc-shaped base two is engaged on the lower part of the probe surface; two symmetrical locking blocks are fixedly connected to both sides of the surface of the arc-shaped base two; a steel bar locking seat is fixedly connected to the bottom of the arc-shaped base two; a locking element is rotatably connected to one side of the bottom of the steel bar locking seat via a rotating shaft; a protective cover is fitted on the surface of the arc-shaped base one and the arc-shaped base two; and a metal tube is fitted on the upper part of the surface of the concrete temperature measuring line.

[0006] The present invention further comprises the following: the surface of the concrete temperature measuring wire is bound with a wire harness, and the inner walls of the first and second arc-shaped bases are provided with grooves that match the shape of the probe.

[0007] The present invention further comprises the following: a connecting plate is fixedly connected to one side of the two locking blocks facing each other, and the connecting plate is attached to the outside of the locking plate.

[0008] The present invention further comprises the following: one end of the rebar clip seat and the clip are fixedly connected by bolts, and one side of the rebar clip seat and the clip is fixed to the surface of the transverse rebar.

[0009] The present invention further comprises the following: a circular plate is fixedly connected to one end of the protective cover away from the concrete temperature measuring line, and the circular plate is fixedly connected to one side of the arc-shaped base one and the arc-shaped base two by bolts.

[0010] The present invention provides a device for fixing and protecting large-volume concrete automated temperature measuring elements as described above, further comprising: a groove at the bottom of the protective cover for the steel bar buckle seat and the buckle to pass through.

[0011] The present invention further comprises the following: the surface of the protective cover is provided with dense small holes.

[0012] The present invention provides a fixing and protection device for a large-volume concrete automated temperature measuring element as described above, further comprising: the metal tube being fixed to the surface of the supporting reinforcing bar by a steel wire, and the wire harness being positioned above the metal tube.

[0013] The present invention further comprises the following: a threaded hole is provided at the central axis of the top of each of the four locking blocks, and the locking blocks are threadedly connected to the inner wall of the threaded hole by bolts.

[0014] The present invention provides a device for fixing and protecting large-volume concrete automated temperature measuring elements as described above, further comprising: the end of the concrete temperature measuring wire being located within the inner cavity of the protective cover.

[0015] The beneficial effects of this invention are: This invention uses arc-shaped base one and arc-shaped base two in conjunction with a locking block to fix the probe, achieving physical isolation between the probe and the reinforcing cage. The probe is quickly secured to the reinforcing cage using a reinforcing cage clip and a locking device. A protective cover is then fastened to the outside of the base, wrapping around the probe and the end of the concrete temperature measuring wire. Multiple temperature measuring wires are centrally threaded into a metal tube and laid along the supporting reinforcing bars to a designated position. The concrete temperature recorder is then bundled and fixed above the supporting reinforcing bars. This structure solves the problems of traditional binding methods, such as inadequate heat insulation, easy probe displacement and damage, and easy cable breakage, ensuring the authenticity and reliability of the temperature measurement data.

[0016] This invention utilizes the small holes on the surface of the protective cover. The dense arrangement of these holes allows cement slurry to penetrate smoothly into the interior of the cover, ensuring the probe fully conforms to the concrete substrate and achieves synchronized and consistent temperature readings. This effectively avoids temperature measurement errors caused by the sealed structure. At the same time, the small holes prevent large pieces of sand and gravel from directly impacting the probe, ensuring accurate temperature readings and improving the reliability of temperature monitoring results without compromising the protective function.

[0017] By using the threaded hole, when the snap-fit ​​block is attached to the top of the snap-fit ​​block, the snap-fit ​​block is fixed to the top of the snap-fit ​​block by a bolt through the threaded hole. This makes the arc-shaped base one and arc-shaped base two more stable on the surface of the probe. Attached Figure Description

[0018] The advantages of the present invention, both above and / or other aspects, will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the invention, wherein: Figure 1 This is a schematic diagram of the front view of one embodiment of the present invention; Figure 2 This is a side view of a concrete temperature recorder and a concrete temperature measuring line (4) according to an embodiment of the present invention; Figure 3This is a front view schematic diagram of a protective cover and a metal tube according to an embodiment of the present invention; Figure 4 This is a three-dimensional split view of the arc-shaped base and the protective cover according to an embodiment of the present invention; Figure 5 This is a split perspective view of an arc-shaped base one and an arc-shaped base two according to an embodiment of the present invention; Figure 6 This is a bottom perspective view of the arc-shaped base and the steel bar clip seat according to an embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Reinforcing cage; 2. Supporting reinforcing bars; 3. Concrete temperature recorder; 4. Concrete temperature measuring wire; 5. Probe; 6. Cable tie; 7. Arc-shaped base one; 8. Bayonet plate; 9. Clip block; 10. Arc-shaped base two; 11. Clamping block; 12. Connecting plate; 13. Reinforcing bar clip seat; 14. Clip; 15. Protective cover; 16. Circular plate; 17. Metal pipe; 18. Threaded hole. Detailed Implementation

[0020] In the following description, embodiments of the fixing and protection device for the automated temperature measuring element of large-volume concrete according to the present invention will be described with reference to the accompanying drawings.

[0021] The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation or scope of the invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0022] The accompanying drawings in this specification are schematic diagrams to aid in illustrating the concept of the invention, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly demonstrate the structure of the components in the embodiments of the invention, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0023] Figure 1-6This invention illustrates a fixing and protection device for an automated temperature measuring element in large-volume concrete according to an embodiment of the present invention. It includes a supporting reinforcing bar 2 welded into the inner cavity of a reinforcing cage 1. A concrete temperature recorder 3 is connected to the surface of the supporting reinforcing bar 2 by wire binding. A concrete temperature measuring wire 4 is connected to the bottom of the concrete temperature recorder 3 via a waterproof aviation plug. A probe 5 is fixedly connected to the pre-embedded end of the concrete temperature measuring wire 4. An arc-shaped base 7 is engaged on the upper part of the probe 5. A wire harness ties 6 are bound to the surface of the concrete temperature measuring wire 4. The inner walls of the arc-shaped base 7 and the arc-shaped base 10 are provided with grooves matching the shape of the probe 5. A bayonet plate 8 is fixedly connected to both sides of the surface of the arc-shaped base 7. A wire harness ties 6 are fixedly connected to the left and right sides of the two bayonet plates 8. The lower part of the probe 5 surface is fitted with an arc-shaped base 10. Two symmetrical locking blocks 11 are fixedly connected to both sides of the arc-shaped base 10. A connecting plate 12 is fixedly connected to one side of the two locking blocks 11 facing each other. The connecting plate 12 is attached to the outer side of the locking plate 8. A rebar locking seat 13 is fixedly connected to the bottom of the arc-shaped base 10. A locking element 14 is rotatably connected to one side of the bottom of the rebar locking seat 13 via a rotating shaft. One end of the rebar locking seat 13 and the locking element 14 are fixedly connected by bolts. One side of the rebar locking seat 13 and the locking element 14 is secured to the surface of the transverse rebar. The rebar locking seat 13 and the locking element 14 form an openable and closable clamping structure, which is opened and closed by a rotating shaft and locked by bolts. An arc-shaped clamping surface matching the outer wall of the rebar can be provided on the inner side of the rebar locking seat 13 and the locking element 14 to improve installation stability. The rebar clip seat 13 and clip 14 are suitable for rebars of common specifications used in building construction. By adjusting the clamping position and locking degree, they can be adapted to transverse rebars of different diameters, enabling quick installation and disassembly of the fixing device. A protective cover 15 is fitted onto the surface of the arc-shaped base 1 7 and arc-shaped base 2 10. A circular plate 16 is fixedly connected to the end of the protective cover 15 away from the concrete temperature measuring line 4. The circular plate 16 is fixedly connected to one side of the arc-shaped base 1 7 and arc-shaped base 2 10 by bolts. A metal tube 17 is fitted above the surface of the concrete temperature measuring line 4. The metal tube 17 is fixed to the surface of the supporting rebar 2 by steel wire. The wire harness tie 6 is located above the metal tube 17. A groove is provided at the bottom of the protective cover 15 for the rebar clip seat 13 and clip 14 to pass through. The end of the concrete temperature measuring line 4 is located inside the protective cover 15. The metal tube 17 can be made of stainless steel or a metal braided flexible hose, forming a protective channel inside for the concrete temperature measuring line 4 to pass through. The metal tube 17 can resist damage to the temperature measuring wire 4 caused by the collision of the vibrating equipment, the friction of the reinforcing bars, and the extrusion of the concrete during construction, thus improving the reliability of the temperature measuring wire 4 in the pouring environment. When multiple probes 5 are set, multiple concrete temperature measuring wires 4 can be gathered and run together inside the metal tube 17, and led upward along the supporting reinforcing bars 2 to the location of the concrete temperature recorder 3, so as to realize centralized wiring and unified management of multiple temperature measuring points.

[0024] The above solution involves fixing the probe 5 with the cooperation of the arc-shaped base 17, the arc-shaped base 210, and the locking block 11, thus achieving physical isolation between the probe and the reinforcing cage 1. The reinforcing bar buckle seat 13 and the clamp 14 are used to quickly lock the probe to the reinforcing cage 1. Then, the protective cover 15 is fastened to the outside of the base, covering the probe 5 and the end of the concrete temperature measuring wire 4. The multiple temperature measuring wires 4 are centrally inserted into the metal pipe 17 and laid along the supporting reinforcing bar 2 to the designated position. The concrete temperature recorder 3 is tied and fixed above the supporting reinforcing bar 2. This structure solves the problems of traditional binding not being able to insulate heat, probe being easily displaced and damaged, and cables being easily damaged, ensuring the authenticity and reliability of the temperature measurement data.

[0025] refer to Figure 3 and Figure 4 The above-mentioned scheme employs a method where the surface of the protective cover 15 is provided with densely packed small holes. These holes are evenly distributed on the sidewalls and end areas of the protective cover 15, and the shape of the holes can be any one of round, elliptical, square, or strip-shaped. Preferably, the hole diameter is set to 2mm-15mm, and adjacent holes are arranged at intervals. By creating these densely packed holes on the surface of the protective cover 15, cement slurry can smoothly penetrate into the interior of the protective cover 15, allowing the probe 5 to fully conform to the concrete substrate, achieving synchronized and consistent temperature readings. This effectively avoids temperature measurement errors caused by the sealed structure. Simultaneously, the holes can prevent large pieces of sand and gravel from directly impacting the probe, ensuring accurate temperature readings and improving the reliability of temperature monitoring results without weakening the protective function.

[0026] refer to Figure 5 The above scheme is adopted: threaded holes 18 are provided at the central axis of the top of the four locking blocks 11. The locking block 9 is connected to the inner wall of the threaded hole 18 by bolt thread. With the setting of the threaded hole 18, when the locking block 9 is attached to the top of the locking block 11, the locking block 9 is inserted into the inner wall of the threaded hole 18 by bolt, so that the locking block 9 is fixed to the top of the locking block 11, thereby making the arc base 1 7 and arc base 2 10 more stably fixed on the surface of the probe 5.

[0027] It should be noted that the arc-shaped base 7, the latch plate 8, the latching block 9, the arc-shaped base 10, the locking block 11, and the connecting plate 12 are all made of insulating material. The insulating material can be made of high-density polyethylene (HDPE), polypropylene (PP), polyurethane, polytetrafluoroethylene, nylon engineering plastics, phenolic resin composites, or other non-metallic insulating materials with low thermal conductivity to reduce the influence of heat conduction between the reinforcing cage 1 and the probe 5. Preferably, the arc-shaped base 7 and the arc-shaped base 10 are integrally manufactured using injection molding, forming a continuous insulating layer between the probe 5 and the reinforcing cage 1, thereby reducing the interference of the reinforcing steel temperature on the measurement results of the probe 5. The inner sides of the arc-shaped base 7 and the arc-shaped base 10 form a covering cavity that matches the outer contour of the probe 5. When the two are assembled, the outer periphery of the probe 5 is at least partially surrounded by insulating material, exchanging heat with the external concrete medium only through the dense small holes on the surface of the protective cover 15, ensuring that the temperature measured by the probe 5 is closer to the actual temperature of the surrounding concrete.

[0028] When using this invention: First, embed the probe 5 into the matching groove of the arc-shaped base 1 7 and the arc-shaped base 2 10, align and fit the bayonet plate 8 and the locking block 11, and then use bolts to pass through the buckle block 9 and the threaded hole 18 to lock it, so that the two arc-shaped bases firmly wrap the probe 5, and achieve physical thermal insulation isolation between the probe and the steel cage 1. Secondly, the rebar clip seat 13 and clip 14 are engaged on the surface of the transverse rebar of the rebar cage 1 and locked with bolts to complete the quick fastening installation of the entire fixing device and the rebar. Then, the protective cover 15 is fitted onto the outside of the arc-shaped base, completely wrapping the probe 5 and the end of the concrete temperature measuring line 4. The protective cover 15 is then fixed to the base with bolts through the circular plate 16. The dense small holes on the surface of the protective cover 15 allow the cement slurry to penetrate smoothly, ensuring that the temperature measured by the probe is consistent with the temperature of the concrete. Finally, the multiple concrete temperature measuring wires 4 are centrally collected and threaded into the metal pipe 17. The metal pipe 17 is then fixed to the supporting steel bar 2 with a steel wire and led to the designated point. The other end of the temperature measuring wire 4 is then connected to the concrete temperature recorder 3 via a waterproof aviation plug. The recorder 3 is then secured above the supporting steel bar 2, enabling stable automated monitoring of concrete temperature. The concrete temperature recorder 3 receives temperature signals collected by the probe 5 and automatically records and stores them at preset time intervals. The waterproof aviation plug enables a detachable connection between the concrete temperature measuring wires 4 and the concrete temperature recorder 3, while improving connection reliability in humid environments at the construction site. In practical engineering applications, multiple probes 5 can be deployed at different depths or in different areas according to the size of the large-volume concrete structure and temperature monitoring requirements. Each probe 5 is connected to its corresponding concrete temperature measuring wire 4, thereby achieving continuous monitoring of the internal temperature field of the concrete.

[0029] The fixing and protection device for this large-volume concrete automated temperature measuring element uses an arc-shaped base 7, an arc-shaped base 10, and a locking block 11 to fix the probe 5, achieving physical isolation between the probe and the reinforcing cage 1. The reinforcing bar clip seat 13 and the clip 14 are used to quickly lock it to the reinforcing cage 1. Then, the protective cover 15 is fastened to the outside of the base, covering the probe 5 and the end of the concrete temperature measuring line 4. The multiple temperature measuring lines 4 are centrally inserted into the metal tube 17 and laid along the supporting reinforcing bar 2 to the designated position. The concrete temperature recorder 3 is tied and fixed above the supporting reinforcing bar 2. This structure solves the problems of traditional binding not being able to insulate heat, probe being easily displaced and damaged, and cables being easily damaged, ensuring the authenticity and reliability of the temperature measurement data.

[0030] It should be understood that probe 5 can be a thermocouple temperature sensor, a thermistor temperature sensor, a digital temperature sensor, or other temperature measuring element capable of monitoring concrete temperature; concrete temperature recorder 3 can be a single-channel recorder or a multi-channel recorder; concrete temperature measuring wire 4 can be a shielded wire, a waterproof wire, or a corrosion-resistant wire, and all such substitutions fall within the scope of protection of this invention. The specific shapes of the protective cover 15, the arc-shaped base 7, and the arc-shaped base 10 can be adjusted according to the structural dimensions of probe 5, and can be cylindrical, semi-cylindrical, elliptical cylindrical, or other structural forms suitable for covering probe 5, all of which fall within the scope of protection of this invention provided that the probe fixing and protection functions are achieved.

[0031] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. A device for fixing and protecting automated temperature measuring elements of mass concrete, characterized in that, The structure includes supporting reinforcing bars (2) welded into the inner cavity of the reinforcing cage (1): a concrete temperature recorder (3) is connected to the surface of the supporting reinforcing bars (2) by steel wire binding; a concrete temperature measuring wire (4) is connected to the bottom of the concrete temperature recorder (3) by a waterproof aviation plug; a probe (5) is fixedly connected to the pre-embedded end of the concrete temperature measuring wire (4); an arc-shaped base (7) is engaged on the upper part of the surface of the probe (5); two bayonet plates (8) are fixedly connected to both sides of the surface of the arc-shaped base (7); and the left and right sides of the two bayonet plates (8) are fixedly connected to... A snap-fit ​​block (9) is attached. An arc-shaped base two (10) is snapped onto the lower part of the probe (5). Two symmetrical snap-fit ​​blocks (11) are fixedly connected to both sides of the surface of the arc-shaped base two (10). A steel bar snap-fit ​​seat (13) is fixedly connected to the bottom of the arc-shaped base two (10). A snap-fit ​​piece (14) is rotatably connected to one side of the bottom of the steel bar snap-fit ​​seat (13) via a rotating shaft. A protective cover (15) is fitted onto the surface of the arc-shaped base one (7) and the arc-shaped base two (10). A metal tube (17) is fitted onto the upper part of the surface of the concrete temperature measuring line (4).

2. A device for the fixing and protection of automated temperature measuring elements for mass concrete according to claim 1, characterized in that The surface of the concrete temperature measuring line (4) is bound with wire harness (6), and the inner walls of the arc-shaped base one (7) and arc-shaped base two (10) are provided with grooves that match the shape of the probe (5).

3. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, A connecting plate (12) is fixedly connected to one side of the two locking blocks (11) facing each other, and the connecting plate (12) is attached to the outside of the locking plate (8).

4. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, The steel bar buckle seat (13) and the buckle (14) are fixedly connected at one end by bolts, and one side of the steel bar buckle seat (13) and the buckle (14) are fixed to the surface of the transverse steel bar.

5. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, The protective cover (15) has a circular plate (16) fixedly connected to one end away from the concrete temperature measuring line (4). The circular plate (16) is fixedly connected to one side of the arc-shaped base one (7) and the arc-shaped base two (10) by bolts.

6. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, The bottom of the protective cover (15) has a groove for the steel bar buckle seat (13) and the clip (14) to pass through.

7. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, The surface of the protective cover (15) is provided with dense small holes.

8. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, The metal tube (17) is fixed to the surface of the supporting steel bar (2) by steel wire, and the wire harness (6) is located above the metal tube (17).

9. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, Each of the four locking blocks (11) has a threaded hole (18) at the central axis of its top, and the locking block (9) is connected to the inner wall of the threaded hole (18) by a bolt thread.

10. The fixing and protection device for automated temperature measuring elements in large-volume concrete according to claim 1, characterized in that, The end of the concrete temperature measuring line (4) is located inside the protective cover (15).

Images