CN215003977U - Temperature measuring device for concrete - Google Patents
Temperature measuring device for concrete Download PDFInfo
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- CN215003977U CN215003977U CN202120300818.0U CN202120300818U CN215003977U CN 215003977 U CN215003977 U CN 215003977U CN 202120300818 U CN202120300818 U CN 202120300818U CN 215003977 U CN215003977 U CN 215003977U
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- temperature measuring
- steel pipe
- mounting hole
- concrete
- rubber plug
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Abstract
The utility model discloses a temperature measuring device for concrete, which comprises a steel pipe, wherein the side wall of the steel pipe is provided with an upper end mounting hole, at least one middle mounting hole and a lower end mounting hole in sequence from top to bottom, and the mounting holes are uniformly arranged at intervals; the upper end mounting hole is hermetically provided with a surface temperature measuring component which is provided with a surface temperature measuring element and is used for measuring the surface temperature of the concrete before initial setting; the middle mounting hole is hermetically provided with a middle layer temperature measuring component which is provided with a middle layer temperature measuring element and is used for measuring the middle layer temperature before the initial setting of the concrete; the lower end mounting hole is hermetically provided with a bottom temperature measuring component which is provided with a bottom temperature measuring element and is used for measuring the bottom temperature before the initial setting of the concrete; two ports of the steel pipe are closed, and temperature measuring lines of the temperature measuring elements extend out of one end of the steel pipe to be connected with a temperature measuring instrument, so that the temperature of the concrete before initial setting can be measured, the measuring result is accurate, and the construction labor amount is reduced.
Description
Technical Field
The utility model relates to a construction field especially relates to a temperature measuring device for concrete.
Background
Because the large-volume concrete structure has a large section (the large-volume concrete structure member generally requires the minimum section size to be more than 2 meters, such as a concrete structure with the thickness of more than 2 meters, such as a column pier, a raft, a bottom plate and the like), the cement consumption is large, the internal heat of the construction concrete is difficult to dissipate, the external surface heat is fast to dissipate, the internal and external thermal expansion and cold contraction processes correspondingly generate tensile stress on the surface of the concrete, when the temperature difference is large to a certain degree, and the tensile stress on the surface of the concrete exceeds the ultimate tensile strength of the concrete at that time, harmful cracks can be generated on the surface of the concrete, and sometimes even cracks penetrate through the concrete; in addition, the concrete shrinks with the temperature decrease after hardening, and is restrained by the foundation, so that a large external restraining force is generated to cause tensile stress, and when the tensile stress exceeds the ultimate tensile strength of the concrete at that time, a through crack is generated on the whole section of the concrete. Therefore, on the basis of knowing the temperature rising and falling rule caused by hydration heat in the mass concrete, the temperature change situation between the center and the surface of the mass concrete and between the surface and the atmospheric temperature needs to be mastered so as to take necessary protective measures.
However, the existing temperature measurement method for mass concrete mainly includes performing simple insulation treatment on a temperature measurement probe to directly perform embedding temperature measurement, and the measurement result is inaccurate and the construction labor amount is large.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a temperature measuring device for concrete, which measures the temperature of the surface layer, the middle layer and the bottom layer before the initial setting of the concrete by arranging the surface layer, the middle layer and the bottom layer temperature measuring elements on the side wall of the steel pipe from top to bottom in sequence, and simultaneously seals the two ends of the steel pipe, thereby avoiding the inner cavity of the steel pipe from forming an air flowing space which is communicated from top to bottom, leading the temperature measuring point at the bottom of the steel pipe to be influenced by the air flowing and influencing the inaccuracy of the temperature measuring result; furthermore, the utility model discloses a temperature measuring device measures simple and conveniently, reduces the construction amount of labour.
The purpose of the utility model is realized by adopting the following technical scheme:
a temperature measuring device for concrete comprises a steel pipe, wherein an upper end mounting hole, at least one middle mounting hole and a lower end mounting hole are sequentially formed in the side wall of the steel pipe from top to bottom, and each mounting hole is communicated with the inner cavity of the steel pipe and the outer space of the side wall of the steel pipe;
the upper end mounting hole is hermetically provided with a surface temperature measuring component, and the surface temperature measuring component is provided with a surface temperature measuring element and is used for measuring the surface temperature of the concrete before initial setting;
the middle mounting hole is hermetically provided with a middle temperature measuring component, and the middle temperature measuring component is provided with a middle temperature measuring element and is used for measuring the middle temperature before the initial setting of the concrete;
two ports of the steel pipe are closed, and temperature measuring lines of the temperature measuring elements extend out from one end of the steel pipe and are connected with a temperature measuring instrument, so that the temperature of the concrete before initial setting can be measured.
Two ports of the steel pipe are closed, and temperature measuring lines of the temperature measuring elements extend out from one end of the steel pipe and are connected with a temperature measuring instrument, so that the temperature of the concrete before initial setting can be measured.
Furthermore, the structure of the surface temperature measurement assembly, the structure of the middle temperature measurement assembly and the structure of the bottom temperature measurement assembly are the same.
Furthermore, the surface temperature measuring component also comprises a side wall rubber plug which is clamped on the upper end mounting hole and sealed with the upper end mounting hole; the surface temperature measuring element is hermetically fixed on the side wall rubber plug, and the measuring end of the surface temperature measuring element protrudes out of the steel pipe.
Furthermore, the side wall of the side wall rubber plug is provided with a clamping groove matched with the upper end mounting hole, and the clamping groove is arranged along the circumferential direction of the side wall rubber plug, so that the side wall rubber plug can be clamped on the upper end mounting hole through the clamping groove.
Furthermore, a through hole is formed in the side wall rubber plug and is arranged along the central axis direction of the side wall rubber plug, and the surface layer temperature measuring element is hermetically mounted on the through hole.
Furthermore, a bottom rubber plug is arranged at an opening at the bottom end of the steel pipe and used for sealing the bottom end of the steel pipe.
Furthermore, a top rubber plug is arranged at an opening at the top end of the steel pipe and used for sealing the top end of the steel pipe; and the top rubber plug is provided with a hole for extending the temperature measuring line of each temperature measuring element to the outside of the steel pipe.
Further, the top end opening of the steel pipe is sealed through an adhesive tape, so that the top end of the steel pipe is sealed.
Furthermore, the upper end mounting hole, the middle mounting hole and the lower end mounting hole are arranged in a row along the central axis direction of the steel pipe.
Furthermore, the temperature measuring element is a temperature measuring probe.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a from top to bottom arranges surface layer, middle level and bottom temperature measurement component in proper order on the lateral wall of steel pipe, measures the temperature of surface layer, middle level and bottom before the concrete initial set, seals the both ends of steel pipe simultaneously, avoids the inner chamber of steel pipe to form the air flow space that link up from top to bottom, leads to the temperature measurement point of steel pipe bottom to receive the air flow influence, influences the inaccurate of temperature measurement result; furthermore, the utility model discloses a temperature measuring device measures simple and conveniently, reduces the construction amount of labour.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a first schematic structural view of a sidewall rubber plug according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a sidewall rubber plug according to an embodiment of the present invention;
fig. 4 is a first schematic structural view of a top rubber plug according to an embodiment of the present invention;
fig. 5 is a schematic structural view of the top rubber plug according to the embodiment of the present invention.
In the figure: 1. a steel pipe; 10. an upper end mounting hole; 11. a middle mounting hole; 12. a lower end mounting hole; 2. a surface temperature measuring component; 20. a surface temperature measuring element; 200. a through hole; 201. a card slot; 3. a middle temperature measuring component; 30. a middle temperature measuring element; 4. a bottom layer temperature measurement component; 40. a bottom layer temperature sensing element; 5. a bottom rubber plug; 6. a top rubber plug; 60. and (4) holes.
Detailed Description
In the following, the present invention is described with priority in conjunction with the accompanying drawings and the detailed description, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below may be arbitrarily combined to form a new embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The implementation mode is as follows:
as shown in fig. 1-5, the utility model discloses a temperature measuring device for concrete, which comprises a steel pipe 1, wherein the side wall of the steel pipe 1 is provided with an upper end mounting hole 10, at least one middle mounting hole 11 and a lower end mounting hole 12 in sequence from top to bottom, and each mounting hole is communicated with the inner cavity of the steel pipe 1 and the outer space of the side wall of the steel pipe 1; the mounting holes are uniformly arranged at intervals, and the upper end mounting holes 10, the middle mounting holes 11 and the lower end mounting holes 12 are arranged in a row along the central axis direction of the steel pipe 1, so that construction is facilitated, and measuring points are conveniently arranged. The steel pipe 1 is preferably a galvanized steel pipe 1, but may be a hard material of other material instead, and is not limited herein.
The surface temperature measuring component 2 is arranged on the upper end mounting hole 10 in a sealing mode, the surface temperature measuring component 2 is provided with a surface temperature measuring element 20 and used for measuring the surface temperature of the concrete before initial setting, the surface temperature measuring element 20 is a temperature measuring probe, namely the surface temperature measuring element 20 is located outside the steel pipe 1, when the steel pipe 1 is inserted into the concrete to be tested, the surface temperature measuring element 20 can be in contact with the surface of the concrete, and a temperature measuring line of the surface temperature measuring element 20 is located in an inner cavity of the steel pipe 1, so that the effect of measuring the surface temperature of the concrete before initial setting is achieved. It is noted that, according to the requirements for temperature measurement in "Standard for Mass concrete construction GB 50496-2018", article 6 indicates "the surface temperature of the concrete cast body, preferably the temperature at a position 50mm inside the concrete cast body surface".
The middle temperature measuring component 3 is hermetically arranged on the middle mounting hole 11, the middle temperature measuring component 3 is provided with a middle temperature measuring element 30 and is used for measuring the middle temperature before the initial setting of the concrete, the middle temperature measuring element 30 is a temperature measuring probe, namely, the measuring end of the middle temperature measuring element 30 is positioned outside the steel pipe 1, when the steel pipe 1 is inserted into the concrete for testing, the middle temperature measuring element 30 can be contacted with the middle layer of the concrete, and the temperature measuring line of the middle temperature measuring element 30 is positioned in the inner cavity of the steel pipe 1, so that the effect of measuring the middle temperature before the initial setting of the concrete is realized.
The bottom temperature measuring component 4 is arranged on the lower end mounting hole 12 in a sealed mode, the bottom temperature measuring component 4 is provided with a bottom temperature measuring element 40 and used for measuring the bottom temperature of the concrete before initial setting, the bottom temperature measuring element 40 is a temperature measuring probe, namely the measuring end of the bottom temperature measuring element 40 is located outside the steel pipe 1, when the steel pipe 1 is inserted into the concrete to be tested, the bottom temperature measuring element 40 can be in contact with the bottom of the concrete, and a temperature measuring line of the bottom temperature measuring element 40 is located in an inner cavity of the steel pipe 1, so that the effect of measuring the bottom temperature of the concrete before initial setting is achieved. It is noted that, according to the requirements for temperature measurement in "large volume concrete construction Standard GB 50496-2018", item 7 indicates "the temperature of the bottom layer of the concrete cast body, preferably 50mm above the surface of the concrete cast body".
Of course, the two ports of the steel pipe 1 are closed, and the temperature measuring lines of the temperature measuring elements extend from one end of the steel pipe 1 to the outside and are connected with a temperature measuring instrument, so that the temperature of the concrete before initial setting can be measured. According to the requirements of 'large-volume concrete construction standard GB 50496-2018' on temperature measurement, the distance between a measuring point of a surface temperature measuring element 20 and the top end face of a steel pipe 1 is preferably 50mm, the distance between a measuring point of a bottom temperature measuring element 40 and the bottom end face of the steel pipe 1 is also preferably 50mm, the distance between the measuring points of the surface temperature measuring element 20 and a middle temperature measuring element 30 is not more than 50cm, the distance between the measuring points of the middle temperature measuring element 30 and the bottom temperature measuring element 40 is not more than 50cm, namely the distance between the measuring points of the temperature measuring elements is not more than 50 cm. The utility model discloses a temperature measuring device is in the use, before the concrete initial set that needs to measure, in inserting the concrete with steel pipe 1's bottom, and steel pipe 1's top face parallel and level concrete surface for each temperature element can reach the measuring position, then will extend to outer thermoscope of thermometer line access, carries out the temperature measurement and reachs the result.
To sum up, the utility model discloses a from top to bottom arranges in proper order on the lateral wall of steel pipe 1 that top layer temperature measurement element 20, middle level temperature measurement element 30 and bottom temperature measurement element 40, measures the temperature of top layer, middle level and bottom before the concrete initial set, seals the both ends of steel pipe 1 simultaneously, avoids the inner chamber of steel pipe 1 to form the air flow space that link up from top to bottom, leads to the temperature measurement point of steel pipe 1 bottom to receive the air flow influence, influences the inaccurate of temperature measurement result; furthermore, the utility model discloses a temperature measuring device measures simple and conveniently, reduces the construction amount of labour.
In a preferred embodiment, the surface temperature measuring component 2, the middle temperature measuring component 3 and the bottom temperature measuring component 4 have the same structure. As shown in fig. 2-3, the surface temperature measuring assembly 2 further includes a sidewall rubber plug, preferably a high temperature resistant rubber plug, which is clamped to and sealed with the upper end mounting hole 10; the surface temperature measuring element 20 is hermetically fixed on the side wall rubber plug, and the measuring end of the surface temperature measuring element 20 protrudes out of the steel pipe 1. Further, a clamping groove 201 matched with the upper end mounting hole 10 is formed in the side wall of the side wall rubber plug, and the clamping groove 201 is formed along the circumferential direction of the side wall rubber plug, so that the side wall rubber plug can be clamped on the upper end mounting hole 10 through the clamping groove 201. Furthermore, a through hole 200 is formed in the side wall rubber plug, the through hole 200 is arranged along the central axis direction of the side wall rubber plug, and the surface temperature measuring element 20 is hermetically mounted on the through hole 200. That is, it can be understood that the surface temperature measuring element 20 is fixed at the rubber plug on the side wall, the temperature measuring line of the surface temperature measuring element 20 is arranged in the inner cavity of the steel pipe 1, and the output end of the temperature measuring line of the surface temperature measuring element 20 is pulled out from the top end of the steel pipe 1 and connected with the temperature measuring instrument. Similarly, the mounting structures of the middle-layer temperature measuring element 30 and the bottom-layer temperature measuring element 40 are the same as the mounting structure of the surface-layer temperature measuring element 20, and are not described herein again.
As a preferred embodiment, a bottom end rubber plug 5 is arranged at the bottom end opening of the steel pipe 1 and is used for sealing the bottom end of the steel pipe 1, that is, the bottom end opening of the steel pipe 1 is sealed by the bottom end rubber plug 5, and the bottom end rubber plug 5 is preferably a high temperature resistant rubber plug; of course, the bottom end of the steel pipe 1 may be directly flattened without a gap to seal the bottom end opening of the steel pipe 1, which is not limited herein.
As a preferred embodiment, as shown in fig. 4-5, a top end plug 6 is provided at the top end opening of the steel tube 1 for sealing the top end of the steel tube 1, and the top end plug 6 is preferably a high temperature resistant rubber plug. That is, the top end rubber plug 6 seals the top end opening of the steel pipe 1, but the hole 60 is arranged on the top end rubber plug 6, and of course, the hole 60 is communicated with the inner cavity of the steel pipe, and the temperature measuring lines for the temperature measuring elements extend to the outside of the steel pipe 1. That is, the temperature measuring lines of the temperature measuring elements need to be plugged after penetrating out of the holes 60, so that when the steel pipe 1 is inserted into concrete for testing, the concrete enters the inner cavity of the steel pipe 1 from the holes 60 to influence the measuring result. In another embodiment, the top opening of the steel tube 1 is sealed by an adhesive tape to seal the top end of the steel tube 1, that is, the top end of the steel tube 1 may also be sealed by an adhesive tape, which is not limited to the above top rubber plug 6, but the adhesive tape is also provided with the holes 60, so that the temperature measuring lines of the temperature measuring elements extend to the outside of the steel tube 1.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A temperature measuring device for concrete is characterized in that: the steel pipe comprises a steel pipe, wherein an upper end mounting hole, at least one middle mounting hole and a lower end mounting hole are sequentially formed in the side wall of the steel pipe from top to bottom, and each mounting hole is communicated with the inner cavity of the steel pipe and the outer space of the side wall of the steel pipe;
the upper end mounting hole is hermetically provided with a surface temperature measuring component, and the surface temperature measuring component is provided with a surface temperature measuring element and is used for measuring the surface temperature of the concrete before initial setting;
the middle mounting hole is hermetically provided with a middle temperature measuring component, and the middle temperature measuring component is provided with a middle temperature measuring element and is used for measuring the middle temperature before the initial setting of the concrete;
the lower end mounting hole is hermetically provided with a bottom temperature measuring component, and the bottom temperature measuring component is provided with a bottom temperature measuring element and is used for measuring the bottom temperature before the initial setting of the concrete;
two ports of the steel pipe are closed, and temperature measuring lines of the temperature measuring elements extend out from one end of the steel pipe and are connected with a temperature measuring instrument, so that the temperature of the concrete before initial setting can be measured.
2. The temperature measuring apparatus for concrete according to claim 1, wherein: the surface temperature measurement assembly, the middle temperature measurement assembly and the bottom temperature measurement assembly are identical in structure.
3. A temperature measuring device for concrete according to claim 2, wherein: the surface temperature measuring component also comprises a side wall rubber plug which is clamped on the upper end mounting hole and sealed with the upper end mounting hole; the surface temperature measuring element is hermetically fixed on the side wall rubber plug, and the measuring end of the surface temperature measuring element protrudes out of the steel pipe.
4. A temperature measuring device for concrete according to claim 3, wherein: the side wall of the side wall rubber plug is provided with a clamping groove matched with the upper end mounting hole, and the clamping groove is arranged along the circumferential direction of the side wall rubber plug, so that the side wall rubber plug can be clamped on the upper end mounting hole through the clamping groove.
5. The temperature measuring apparatus for concrete according to claim 4, wherein: the side wall rubber plug is provided with a through hole, the through hole is arranged along the central axis direction of the side wall rubber plug, and the surface layer temperature measuring element is hermetically arranged on the through hole.
6. The temperature measuring apparatus for concrete according to claim 1, wherein: and a bottom rubber plug is arranged at an opening at the bottom end of the steel pipe and used for sealing the bottom end of the steel pipe.
7. The temperature measuring apparatus for concrete according to claim 1, wherein: a top rubber plug is arranged at an opening at the top end of the steel pipe and used for sealing the top end of the steel pipe; and the top rubber plug is provided with a hole for extending the temperature measuring line of each temperature measuring element to the outside of the steel pipe.
8. The temperature measuring apparatus for concrete according to claim 1, wherein: the top end opening of the steel pipe is sealed through an adhesive tape, so that the top end of the steel pipe is sealed.
9. The temperature measuring apparatus for concrete according to claim 1, wherein: the upper end mounting hole, the middle mounting hole and the lower end mounting hole are arranged in a row along the central axis direction of the steel pipe.
10. The temperature measuring apparatus for concrete according to claim 1, wherein: the temperature measuring element is a temperature measuring probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300818.0U CN215003977U (en) | 2021-02-02 | 2021-02-02 | Temperature measuring device for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300818.0U CN215003977U (en) | 2021-02-02 | 2021-02-02 | Temperature measuring device for concrete |
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| Publication Number | Publication Date |
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| CN215003977U true CN215003977U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120300818.0U Active CN215003977U (en) | 2021-02-02 | 2021-02-02 | Temperature measuring device for concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508102A (en) * | 2022-02-16 | 2022-05-17 | 宁夏水利水电工程局有限公司 | Simple method for temperature control measurement of mass concrete |
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2021
- 2021-02-02 CN CN202120300818.0U patent/CN215003977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508102A (en) * | 2022-02-16 | 2022-05-17 | 宁夏水利水电工程局有限公司 | Simple method for temperature control measurement of mass concrete |
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