Digital thermodetector for engineering detection

Abstract

The utility model relates to the technical field of engineering detection equipment, and discloses a digital thermodetector for engineering detection, which comprises a main control instrument, the bottom end of the main control instrument is detachably connected with a lead, the left side of the main control instrument is provided with a hollow insertion rod, the inside of the hollow insertion rod is fixedly connected with a temperature measuring cylinder, and the temperature measuring cylinder is fixedly connected with the lead. An exhaust hole is formed in the upper surface of the hollow inserting rod, an annular fixing cylinder is fixedly connected to the outer side of the wire, an exhaust unit is arranged in the annular fixing cylinder, a rubber pad is fixedly connected to the bottom end of the annular fixing cylinder, a magnetic ring is fixedly connected to the upper end of the hollow inserting rod, and a communication unit is arranged on the outer side of the magnetic ring. According to the utility model, through cooperation of the exhaust hole, the annular fixing cylinder, the exhaust unit, the rubber pad, the magnetic ring and the communication unit, the interior of the hollow insertion rod is always kept sealed when the thermodetector is used, and the situation that the temperature measurement precision is affected due to heat leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering detection equipment, in particular to a digital thermometer for engineering detection. Background Art

[0002] In engineering inspection, digital thermometers are widely used. They are used to measure the temperature of various materials and equipment to ensure the quality and safety of the project. For example, in concrete curing monitoring, in large-volume concrete construction, digital thermometers are used to monitor the curing process of concrete, monitor the temperature of concrete in real time, ensure its internal temperature is uniform, and prevent cracks and defects caused by temperature differences.

[0003] After searching, Chinese patent announcement number: CN219064724U discloses a concrete thermometer, which includes a temperature measuring tube. The concrete in the material cavity transfers heat to the temperature measuring tube through the concrete. When the temperature of the concrete needs to be measured, the detection end on the measuring component only needs to be continuously inserted along the inner wall of the temperature measuring tube to achieve the temperature measurement of concrete at different heights. After the measurement is completed, the detection end in the measuring component can be pulled out.

[0004] However, when the above-mentioned thermometer is actually used and needs to detect the temperature inside the concrete, it is necessary to open the sealing cover above the temperature measuring tube pre-inserted into the concrete before the temperature probe can be inserted into the concrete for temperature measurement. During the process of opening the sealing cover and inserting the probe into the temperature measuring tube, the upper end of the temperature measuring tube becomes open. At this time, the heat inside the temperature measuring tube will dissipate from the top, which will affect the measurement accuracy of the temperature measuring tube. Therefore, a digital thermometer for engineering detection is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a digital thermometer for engineering inspection, which aims to improve the problem in the prior art that heat easily escapes from the upper end of the temperature measuring tube during the process of inserting the temperature probe into the temperature measuring tube, thereby affecting the measurement accuracy.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a digital thermometer for engineering inspection, comprising a main control instrument, the bottom end of the main control instrument is detachably connected to a wire, a hollow plug rod is provided on the left side of the main control instrument, a temperature measuring cylinder is fixedly connected to the inside of the hollow plug rod, an exhaust hole is provided on the upper surface of the hollow plug rod, an annular fixed cylinder is fixedly connected to the outside of the wire, an exhaust unit is provided inside the annular fixed cylinder, the exhaust unit is used to discharge the gas expanded by heat inside the hollow plug rod, the bottom end of the annular fixed cylinder is fixedly connected to a rubber pad, the upper end of the hollow plug rod is fixedly connected to a magnetic ring, a connecting unit is provided on the outside of the magnetic ring, and the connecting unit is used to discharge the gas expanded by heat inside the hollow plug rod.

[0007] As a further description of the above technical solution:

[0008] A rotating ring is provided above the annular fixed cylinder, an anti-slip groove is provided on the outer side of the rotating ring, an external threaded cylinder is fixedly connected to the bottom end of the rotating ring, and an annular screw hole is provided on the upper surface of the annular fixed cylinder.

[0009] As a further description of the above technical solution:

[0010] The exhaust unit includes an annular piston, which is inserted into the interior of the annular fixing cylinder. An elastic member is fixedly connected to the upper surface of the annular piston.

[0011] As a further description of the above technical solution:

[0012] The communication unit includes a through hole, which is opened on the upper surface of the magnetic ring. The bottom of the rubber pad is provided with an annular through groove, and the bottom surface of the annular fixing cylinder is provided with an annular groove.

[0013] As a further description of the above technical solution:

[0014] One end of the wire away from the main controller is plugged into the interior of the temperature measuring cylinder, and the annular fixing cylinder is sleeved and fixedly connected to the outside of the wire.

[0015] As a further description of the above technical solution:

[0016] The external threaded barrel is connected to the internal thread of the annular screw hole.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the annular piston and the inner wall of the annular fixed cylinder are in contact with each other, and the upper end of the elastic member and the bottom surface of the external threaded cylinder are in contact with each other.

[0019] As a further description of the above technical solution:

[0020] The through hole is communicated with the interior of the exhaust hole, the annular groove is located directly above the through hole, and the interior of the annular groove is communicated with the interior of the annular groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by cooperating with the exhaust hole, annular fixing cylinder, exhaust unit, rubber pad, magnetic ring and connecting unit, the interior of the hollow plug rod of the thermometer is always kept sealed during use, thereby avoiding heat leakage that affects the temperature measurement accuracy. At the same time, when the gas inside the hollow plug rod expands due to heat, the gas enters the annular fixing cylinder, thereby avoiding the gas pushing the annular fixing cylinder upward, causing heat leakage inside the hollow plug rod, and further affecting the temperature measurement accuracy.

[0023] 2. In the present invention, by cooperating with the rotating ring, anti-slip grooves, external threaded cylinder and annular screw hole, when the connecting unit is damaged, the upper end of the annular fixed cylinder can be quickly opened and the connecting unit can be directly replaced. The operation is simple and the detection efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a digital thermometer for engineering inspection proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of a front cross-section of a hollow rod of a digital thermometer for engineering inspection proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of a front section of a digital thermometer for engineering inspection proposed by the present invention;

[0027] Figure 4 This utility model proposes a digital thermometer for engineering testing Figure 3 Schematic diagram at part A;

[0028] Figure 5 The utility model is a schematic diagram of a front section view of the interior of an annular fixed cylinder of a digital thermometer for engineering inspection proposed by the present invention.

[0029] Legend:

[0030] 1. Main controller; 2. Wire; 3. Hollow plug; 4. Temperature measuring tube; 5. Exhaust hole; 6. Annular fixing tube; 61. Annular piston; 62. Elastic part; 7. Rubber pad; 8. Magnetic ring; 81. Through hole; 82. Annular groove; 83. Annular groove; 9. Rotating ring; 10. Anti-slip groove; 11. Externally threaded tube; 12. Annular screw hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 2 The utility model provides an embodiment: a digital thermometer for engineering inspection, including a main control instrument 1, the bottom end of the main control instrument 1 is detachably connected to a wire 2, a hollow plug rod 3 is provided on the left side of the main control instrument 1, a temperature measuring tube 4 is fixedly connected to the inside of the hollow plug rod 3, an injection hole is provided on the outside of the hollow plug rod 3, a micropore is provided on the outside of the temperature measuring tube 4, a partition is fixedly connected to the outside of the temperature measuring tube 4, the partition divides the area between the temperature measuring tube 4 and the hollow plug rod 3 into multiple material cavities, and multiple material cavities are provided on the inner wall of the material cavity. The sampling hole allows the heat inside the concrete to enter the temperature measuring cylinder 4 through the micropores, so that the wire 2 can detect the temperature more accurately. Since the concrete is not very deep, the pressure on the concrete in the cavity is not large, so it will not enter the interior of the temperature measuring cylinder 4, making it convenient for the concrete body to enter the cavity through the sampling hole. The end of the wire 2 away from the main controller 1 is plugged into the interior of the temperature measuring cylinder 4. The upper surface of the hollow rod 3 is provided with an exhaust hole 5, and the air expanded by heat in the hollow rod 3 can be discharged through the exhaust hole 5.

[0033] Reference Figure 3-Figure 5 The outer side of the wire 2 is fixedly connected with an annular fixing cylinder 6, which is made of iron material. The annular fixing cylinder 6 is sleeved and fixedly connected to the outer side of the wire 2. An exhaust unit is provided inside the annular fixing cylinder 6. The exhaust unit includes an annular piston 61, which is inserted into the interior of the annular fixing cylinder 6. The outer wall of the annular piston 61 fits with the inner wall of the annular fixing cylinder 6. The annular piston 61 can separate the interior of the annular fixing cylinder 6. When the air pressure below the annular piston 61 increases, the annular piston 61 can be pushed upward. The upper surface of the annular piston 61 is fixedly connected with an elastic member 62. The bottom end of the annular fixing cylinder 6 is fixedly connected with a rubber pad 7. When the annular fixing cylinder 6 moves, the rubber pad 7 can be driven to move synchronously. The upper end of the hollow insertion rod 3 is fixedly connected with a magnetic ring 8. When the wire 2 is inserted into the interior of the temperature measuring cylinder 4, the magnetic ring 8 can magnetically attract the annular fixing cylinder 6, thereby squeezing the rubber pad 7, so that the rubber pad 7 can seal the upper end of the hollow insertion rod 3 to avoid heat leakage and improve the accuracy of temperature monitoring.

[0034] The outer side of the magnetic ring 8 is provided with a connecting unit, which includes a through hole 81. The through hole 81 is opened on the upper surface of the magnetic ring 8, and the through hole 81 is connected to the interior of the exhaust hole 5. The bottom of the rubber pad 7 is provided with an annular groove 82, and the annular groove 82 is located directly above the through hole 81. The bottom surface of the annular fixed cylinder 6 is provided with an annular groove 83. The interior of the annular groove 83 is connected to the interior of the annular groove 82. The gas inside the hollow plug 3 can enter the through hole 81 through the exhaust hole 5, and then enter the annular fixed cylinder 6 through the annular groove 82 and the annular groove 83. When the gas inside the hollow plug 3 expands due to temperature increase, it can enter the annular fixed cylinder 6 through the connecting unit and press the annular piston 61, so that the annular piston 61 moves upward to squeeze the elastic member 62, so that the elastic member 62 is compressed to generate elastic potential energy, thereby expanding the movement space of the gas, and avoiding excessive air pressure inside the hollow piston, which causes the annular fixed cylinder 6 and the rubber pad 7 to be pushed upward, resulting in heat leakage inside the hollow plug 3, which in turn affects the accuracy of temperature measurement.

[0035] Reference Figure 4-Figure 5 A rotating ring 9 is provided above the annular fixed cylinder 6, and anti-slip grooves 10 are provided on the outer side of the rotating ring 9. The anti-slip grooves 10 can increase the contact area between the rotating ring 9 and the staff's hands, thereby increasing the friction and avoiding slipping. The bottom end of the rotating ring 9 is fixedly connected with an externally threaded cylinder 11. When the rotating ring 9 rotates, it can drive the externally threaded cylinder 11 to rotate. The upper end of the elastic member 62 is in contact with the bottom surface of the externally threaded cylinder 11. An annular screw hole 12 is provided on the upper surface of the annular fixed cylinder 6, and the externally threaded cylinder 11 is connected to the internal thread of the annular screw hole 12. When the exhaust unit inside the annular fixed cylinder 6 is damaged, the rotating ring 9 can be screwed to drive the externally threaded cylinder 11 to move upward to open the annular fixed cylinder 6. When the wire 2 is removed from the main controller 1, the exhaust unit can be directly removed for replacement or maintenance, which is easy to operate.

[0036] Working principle: Insert the wire 2 into the temperature measuring tube 4, so that the annular fixing tube 6 and the magnetic ring 8 are magnetically attracted, and the rubber pad 7 is squeezed, so that the rubber pad 7 is compressed to seal the gap between the magnetic ring 8 and the annular fixing tube 6, and then the upper end of the hollow plug rod 3 is sealed to prevent heat from leaking from the top of the hollow plug rod 3, which affects the measurement accuracy. Then the hollow plug rod 3 can be inserted into the concrete, and wait for the concrete to flow into the outside of the temperature measuring tube 4 along the sampling hole outside the hollow plug rod 3, and allow the heat to enter the temperature measuring tube 4 through the micropores, from The wire 2 and the main controller 1 can quickly detect the temperature, and then the temperature inside the hollow rod 3 gradually increases. The gas in the hollow rod 3 expands due to the heat and can enter the annular fixed cylinder 6 through the connecting unit, and the annular piston 61 is moved upward to squeeze the elastic part 62, so that the elastic part 62 is compressed to generate elastic potential energy, thereby expanding the movement space of the gas, and avoiding excessive air pressure inside the hollow piston, which causes the annular fixed cylinder 6 and the rubber pad 7 to be pushed upward, resulting in a gap at the upper end of the annular fixed cylinder 6, causing heat to leak and affecting the temperature measurement results.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A digital thermometer for engineering inspection, comprising a main control instrument (1), characterized in that: The bottom end of the main control instrument (1) is detachably connected to a wire (2), a hollow plug rod (3) is provided on the left side of the main control instrument (1), the interior of the hollow plug rod (3) is fixedly connected to a temperature measuring tube (4), an exhaust hole (5) is provided on the upper surface of the hollow plug rod (3), the outer side of the wire (2) is fixedly connected to an annular fixed tube (6), the interior of the annular fixed tube (6) is provided with an exhaust unit, the exhaust unit is used to discharge the gas expanded by heat inside the hollow plug rod (3), the bottom end of the annular fixed tube (6) is fixedly connected to a rubber pad (7), the upper end of the hollow plug rod (3) is fixedly connected to a magnetic ring (8), the outer side of the magnetic ring (8) is provided with a connecting unit, the connecting unit is used to discharge the flow of gas expanded by heat inside the hollow plug rod (3).

2. A digital thermometer for engineering inspection according to claim 1, characterized in that: A rotating ring (9) is provided above the annular fixed cylinder (6), an anti-slip groove (10) is provided on the outer side of the rotating ring (9), an external threaded cylinder (11) is fixedly connected to the bottom end of the rotating ring (9), and an annular screw hole (12) is provided on the upper surface of the annular fixed cylinder (6).

3. The digital thermometer for engineering inspection according to claim 1, characterized in that: The exhaust unit comprises an annular piston (61), the annular piston (61) is inserted into the interior of the annular fixed cylinder (6), and an elastic member (62) is fixedly connected to the upper surface of the annular piston (61).

4. The digital thermometer for engineering inspection according to claim 1, characterized in that: The communication unit comprises a through hole (81), the through hole (81) is provided on the upper surface of the magnetic ring (8), an annular through groove (82) is provided on the bottom of the rubber pad (7), and an annular groove (83) is provided on the bottom surface of the annular fixing cylinder (6).

5. The digital thermometer for engineering inspection according to claim 1, characterized in that: One end of the wire (2) away from the main control instrument (1) is plugged into the interior of the temperature measuring tube (4), and the annular fixing tube (6) is sleeved and fixedly connected to the outside of the wire (2).

6. The digital thermometer for engineering inspection according to claim 2, characterized in that: The external threaded barrel (11) is connected to the internal thread of the annular screw hole (12).

7. The digital thermometer for engineering inspection according to claim 3, characterized in that: The outer wall of the annular piston (61) fits in contact with the inner wall of the annular fixed cylinder (6), and the upper end of the elastic member (62) fits in contact with the bottom surface of the externally threaded cylinder (11).

8. The digital thermometer for engineering inspection according to claim 4, characterized in that: The through hole (81) is in communication with the interior of the exhaust hole (5); the annular groove (82) is located directly above the through hole (81); and the interior of the annular groove (83) is in communication with the interior of the annular groove (82).

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