Temperature sensor

Abstract

The utility model relates to the technical field of temperature sensors, and discloses a temperature sensor which comprises a junction box and further comprises a protection tube arranged on the left side of the junction box, a first connector is arranged on the left side of the protection tube, a connecting tube is arranged on the left side of the first connector, and a protection tube sleeve is arranged on the left side of the connecting tube. A detection pipe is arranged on the left side of the first connector; the stabilizing assembly is arranged on the surface of the protection pipe and used for improving stability; the problems that when the detection end of the temperature sensor is inserted into a pipeline for temperature detection, a traditional stainless steel detection protection outer sleeve cannot accurately detect the temperature, and the detection end is prone to fatigue fracture caused by bearing damage and water flow scouring vibration are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensors, in particular to a temperature sensor. Background Art

[0002] Platinum resistance thermometers are usually used in the industry to measure the temperature of water flowing in pipes below 100°C. When the pressure in the pipe is 12kg / cm2 and the flow rate is 3m / s, a stainless steel outer protective sleeve with a diameter greater than 8mm is generally used to measure the temperature sensing element to deal with pressure damage and fatigue fracture caused by water flow scouring and vibration. The thermal response time of a platinum resistance temperature sensor with an outer protective sleeve of 8mm diameter is generally more than 15 seconds.

[0003] The water temperature in some pipes rises rapidly. For example, the water used for particle beam accelerator process cooling can rise by more than ten degrees in a few seconds. In order to improve the accuracy of temperature measurement during the heating process, improve the follow-up characteristics of the temperature sensor, and reduce the thermal response time of the temperature sensor, the outer protective sleeve of the temperature sensor must be made thin enough. However, the sensor with an 8mm stainless steel jacket cannot meet this requirement. In actual tests, even if the protective tube outside the temperature sensing element is reduced to a diameter of 6mm, it is still difficult to meet the requirements of rapid measurement, and the strength of the protective tube is close to the critical state.

[0004] The accuracy of industrial platinum resistance temperature sensors is generally divided into Class B (tolerance ±(0.30+0.005|t|)) and Class A (tolerance ±(0.15+0.002|t|)). If higher measurement accuracy is required, in addition to selecting more accurate components, the manufacturing process must also be improved accordingly, which greatly increases the product cost. Utility Model Content

[0005] The purpose of the utility model is to provide a temperature sensor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temperature sensor, including a junction box, and also including: a protective tube arranged on the left side of the junction box, a first connector is arranged on the left side of the protective tube, a connecting tube is arranged on the left side of the first connector, a protective pipe sleeve is arranged on the left side of the connecting tube, and a detection tube is arranged on the left side of the first connector; a stabilizing component arranged on the surface of the protective tube for increasing stability.

[0007] Preferably, the stabilizing component includes a connecting shell, a limiting hole is opened on the top of the connecting shell, clamps are provided on both sides of the inner cavity of the connecting shell, the bottoms of the two clamps are fixedly connected with connecting sleeves, the inner cavity of the connecting sleeve is threadedly connected with a two-way bolt, the rear side of the two-way bolt is fixedly connected with a positioning block through a bearing seat, and the top of the positioning block is fixedly connected to the connecting shell.

[0008] Preferably, a slider is fixedly connected to the top of the clamping plate, and the surface of the slider is movably connected to the inner cavity of the limiting hole.

[0009] Preferably, the front side and the rear side of the connecting shell are both fixedly connected with a retaining plate, and the surface of the retaining plate is provided with a positioning hole.

[0010] Preferably, the inner cavities of the two clamping plates are both provided with anti-vibration pads, and the material of the anti-vibration pads is rubber.

[0011] Preferably, the surface of the first connector is provided with a threaded pattern, the inner cavity of the connecting pipe is provided with a threaded groove, and the surface of the threaded pattern is threadedly connected to the inner cavity of the threaded groove.

[0012] Preferably, the protective tube sleeve is a hollow mesh sleeve, and the material of the protective tube sleeve is stainless steel.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model firstly drives the protection tube of the temperature sensor to be threadedly connected to the first connecting head of the protection tube to protect the detection tube, then inserts the temperature sensor into the interior of the connecting shell and inserts the detection tube into the interior of the object and contacts the water flow, at this time the staff can screw the two-way bolts, the two-way bolts will drive the two clamping plates to move to the opposite side, the two clamping plates will clamp and position the protection tube of the temperature sensor during relative movement, the interior of the clamping plate is provided with an anti-vibration pad, the material of the anti-vibration pad is rubber, which can effectively prevent the detection tube from shaking when impacted by the water flow, so as to protect the detection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the temperature sensor structure provided by the utility model;

[0016] Figure 2 A schematic diagram of the split structure provided by the utility model;

[0017] Figure 3 A schematic diagram of the structure of the stabilizing assembly provided by the utility model;

[0018] Figure 4 This is a structural schematic diagram of the card board provided by the utility model.

[0019] In the figure: 1. junction box; 2. protection tube; 3. connecting tube; 4. first connecting head; 5. protective tube sleeve; 6. screw thread; 7. thread groove; 8. detection tube; 9. stabilizing assembly; 901. connecting shell; 902. limiting hole; 903. retaining plate; 904. positioning hole; 905. connecting sleeve; 906. clamping plate; 907. two-way bolt; 908. slider; 909. anti-vibration pad; 910. positioning block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 As shown, a temperature sensor includes a junction box 1, and also includes: a protective tube 2 arranged on the left side of the junction box 1, a first connector 4 is arranged on the left side of the protective tube 2, a connecting tube 3 is arranged on the left side of the first connector 4, a protective tube sleeve 5 is arranged on the left side of the connecting tube 3, and a detection tube 8 is arranged on the left side of the first connector 4; a stabilizing component 9 is arranged on the surface of the protective tube 2 for increasing stability.

[0022] refer to Figure 1 , Figure 3 and Figure 4 As shown, the stabilizing component 9 includes a connecting shell 901, a limiting hole 902 is provided on the top of the connecting shell 901, and clamping plates 906 are provided on both sides of the inner cavity of the connecting shell 901, and the bottoms of the two clamping plates 906 are fixedly connected with connecting sleeves 905, and the inner cavity of the connecting sleeve 905 is threadedly connected with a two-way bolt 907, and the rear side of the two-way bolt 907 is fixedly connected with a positioning block 910 through a bearing seat, and the top of the positioning block 910 is fixedly connected to the connecting shell 901, and the top of the clamping plate 906 is fixedly connected with a slider 908, and the surface of the slider 908 is movably connected to the inner cavity of the limiting hole 902, and the front and rear sides of the connecting shell 901 are fixedly connected with retaining plates 903, and the surface of the retaining plate 903 is provided with positioning holes 904, and the inner cavities of the two clamping plates 906 are provided with anti-vibration pads 909, and the material of the anti-vibration pads 909 is rubber.

[0023] It should be noted that: first, the retaining plate 903 on the surface of the connecting shell 901 is brought into contact with the surface of the nearest object, and then the connecting shell 901 is installed through the positioning hole 904, and then the temperature sensor is inserted into the interior of the connecting shell 901 and the detection tube 8 is inserted into the interior of the object and contacts with the water flow. At this time, the staff can screw the two-way bolt 907, and the two-way bolt 907 will drive the two clamping plates 906 to move to the opposite side. The two clamping plates 906 will clamp and position the protection tube 2 of the temperature sensor during relative movement. An anti-vibration pad 909 is provided inside the clamping plate 906. The anti-vibration pad 909 is made of rubber, which can effectively prevent the detection tube 8 from shaking when it is impacted by the water flow. By setting the slider 908, the clamping plate 906 is limited. By setting the retaining plate 903 and the positioning hole 904, it is convenient for the staff to install and position the connecting shell 901. By setting the anti-vibration pad 909, an anti-vibration effect is achieved.

[0024] refer to Figure 1 and Figure 2 As shown, the surface of the first connector 4 is provided with a threaded pattern 6, the inner cavity of the connecting pipe 3 is provided with a threaded groove 7, the surface of the threaded pattern 6 is threadedly connected to the inner cavity of the threaded groove 7, the protective sleeve 5 is a hollow mesh sleeve, and the material of the protective sleeve 5 is stainless steel.

[0025] It should be noted that: by setting the coordinated use of the threaded pattern 6 and the threaded groove 7, it is convenient for the staff to connect the first connecting head 4 with the connecting pipe 3. By setting the protective pipe sleeve 5 made of a hollow mesh sleeve material, the detection tube 8 can be effectively protected to prevent the detection tube 8 from being fatigued and broken due to the erosion and vibration of the water flow.

[0026] Working principle: When the staff needs to use the temperature sensor to detect the water temperature in the pipeline, first, the fixing plate 903 on the surface of the connecting shell 901 is brought into contact with the surface of the nearest object, and then the connecting shell 901 is installed through the positioning hole 904, and then the protective tube 2 of the temperature sensor drives the protective tube sleeve 5 to be threadedly connected to the first connecting head 4 of the protective tube 2 to protect the detection tube 8, and then the temperature sensor is inserted into the interior of the connecting shell 901 and the detection tube 8 is inserted into the interior of the object and contacted with the water flow. At this time, the staff can tighten the two-way bolt 907, and the two-way bolt 907 will drive the two clamping plates 906 to move to the opposite side. The two clamping plates 906 will clamp and position the protection tube 2 of the temperature sensor during relative movement. An anti-vibration pad 909 is arranged inside the clamping plate 906. The material of the anti-vibration pad 909 is rubber, which can effectively prevent the detection tube 8 from being fatigued and broken due to the vibration of the water flow to protect the detection tube 8.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature sensor, comprising a junction box (1), characterized in that: Also includes: A protective tube (2) is arranged on the left side of the junction box (1), a first connector (4) is arranged on the left side of the protective tube (2), a connecting tube (3) is arranged on the left side of the first connecting tube (4), a protective tube sleeve (5) is arranged on the left side of the connecting tube (3), and a detection tube (8) is arranged on the left side of the first connecting tube (4); A stabilizing component (9) is arranged on the surface of the protection tube (2) to increase stability.

2. A temperature sensor according to claim 1, characterized in that: The stabilizing component (9) comprises a connecting shell (901), a limiting hole (902) is provided on the top of the connecting shell (901), clamping plates (906) are provided on both sides of the inner cavity of the connecting shell (901), the bottoms of the two clamping plates (906) are fixedly connected to connecting sleeves (905), the inner cavity of the connecting sleeve (905) is threadedly connected to a bidirectional bolt (907), the rear side of the bidirectional bolt (907) is fixedly connected to a positioning block (910) via a bearing seat, and the top of the positioning block (910) is fixedly connected to the connecting shell (901).

3. A temperature sensor according to claim 2, characterized in that: A slider (908) is fixedly connected to the top of the clamping plate (906), and a surface of the slider (908) is movably connected to the inner cavity of the limiting hole (902).

4. A temperature sensor according to claim 2, characterized in that: The front side and the rear side of the connection shell (901) are both fixedly connected to a retaining plate (903), and a positioning hole (904) is provided on the surface of the retaining plate (903).

5. A temperature sensor according to claim 2, characterized in that: The inner cavities of the two clamping plates (906) are both provided with anti-vibration pads (909), and the material of the anti-vibration pads (909) is rubber.

6. A temperature sensor according to claim 1, characterized in that: The surface of the first connector (4) is provided with a threaded pattern (6), the inner cavity of the connecting pipe (3) is provided with a threaded groove (7), and the surface of the threaded pattern (6) is threadedly connected to the inner cavity of the threaded groove (7).

7. A temperature sensor according to claim 1, characterized in that: The protective tube sleeve (5) is a hollow mesh tube sleeve, and the material of the protective tube sleeve (5) is stainless steel.

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