Temperature sensor installed under pressure

Abstract

The utility model discloses an under-pressure installation type temperature sensor, relates to the technical field of temperature sensors, and solves the problems that when temperature monitoring is carried out on a large-scale pipeline, if a traditional temperature sensor needs to be maintained, in order to prevent liquid from flowing out of an installation area to cause liquid leakage, the sensor can only be replaced by emptying the liquid in the pipeline, and the cost is low. The temperature sensor comprises a temperature sensor body and a water leakage prevention structure, the temperature sensor body is provided with a detection rod, the outer side face of the top end of the detection rod is connected with the water leakage prevention structure through a mounting structure, the water leakage prevention structure comprises a ball valve and bolts, and the detection rod is provided with a plurality of bolts above the ball valve. The nitrile rubber ring is arranged in the internal thread groove, the nitrile rubber ring in the water leakage prevention structure ensures the sealing performance after the detection rod is inserted, the pipeline keeps the sealing performance all the time after the temperature sensor is replaced, water drainage is not needed for replacement, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of temperature sensor technology, specifically a pressure-mounted temperature sensor. Background Technology

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. These signals are usually electrical signals (such as changes in voltage, current, or resistance) to facilitate subsequent processing, display, or control. Temperature sensors are the core component of temperature measuring instruments and come in a wide variety of types.

[0003] When monitoring the temperature of large pipelines, traditional temperature sensors require maintenance. To prevent liquid leakage from the installation area, the liquid in the pipeline must be drained before the sensor can be replaced. After the temperature sensor is reassembled, the liquid must be drained and reinjected into the pipeline. This process is not only complicated but also time-consuming. Utility Model Content

[0004] The purpose of this invention is to provide a pressurized temperature sensor that ensures the sealing of the probe after insertion by using a nitrile rubber ring in the leak-proof structure, effectively reducing the risk of liquid leakage from the pipe, and can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure-mounted temperature sensor, comprising a temperature sensor body and a leak-proof structure. A probe is provided on the temperature sensor body, and the leak-proof structure is connected to the outer side of the top of the probe through an installation structure. The leak-proof structure includes a ball valve and bolts. Several bolts are provided on the probe above the ball valve. The top of each bolt has an internal thread groove that matches its own internal thread groove, and a nitrile rubber ring is provided inside the internal thread groove. The bottom of each bolt has a through hole that communicates with the internal thread groove. The bolt at the lowest position is threadedly connected to the ball valve inlet. The ends of the remaining bolts are screwed into the internal thread grooves at adjacent positions in sequence. One end of the probe passes through the internal thread groove, the through hole, and the ball valve channel in sequence.

[0006] Preferably, the thread length on the bolt is equal to the internal depth of the internal thread groove.

[0007] Preferably, the bottom of the bolt has a receiving groove communicating with the through hole, and the receiving groove matches the nitrile rubber ring.

[0008] Preferably, the installation structure includes a sleeve, with the top end of the probe rod fixedly fitted with the sleeve, the bottom end of the sleeve fixedly connected with a nut, and the bottom end of the nut fixedly connected with a first external threaded tube, the first external threaded tube matching the internal thread groove.

[0009] Preferably, the ball valve has a second external threaded tube threaded to its bottom, and an insertion tube is fixedly connected to the bottom end of the second external threaded tube.

[0010] Preferably, a gasket is provided at the top of the ball valve.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: the nitrile rubber ring in the leak-proof structure ensures the sealing of the probe after insertion, effectively reducing the risk of liquid leakage from the pipe and ensuring the sealing of the measurement. When the temperature sensor body needs maintenance, it can be pulled out and the ball valve closed, which prevents liquid from flowing out of the pipe, thereby reducing resource waste. Furthermore, it eliminates the need to drain the liquid before stabilizing and replacing the sensor, making operation simpler and more convenient. The pressurized temperature sensor is mainly used in large-scale projects or pipeline systems, supporting pressurized installation or disassembly even when water is flowing in the pipe and the system is in operation. Secondly, it facilitates subsequent pressurized maintenance without the need to stop or drain water, making operation simple and convenient. Moreover, the pressurized sensor always contacts the liquid inside the pipe, improving detection accuracy and thus enhancing the accuracy and reliability of the alarm. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the partial explosion decomposition of this utility model;

[0014] Figure 3 This is a cross-sectional view of the bolt in the front view of this utility model.

[0015] In the diagram: 1. Temperature sensor body; 2. Detector rod; 3. Mounting structure; 301. Sleeve; 302. Nut; 303. First external threaded tube; 4. Leak-proof structure; 401. Ball valve; 402. Bolt; 403. Nitrile rubber ring; 404. Washer ring; 405. Second external threaded tube; 406. Insert tube; 407. Receiving groove; 408. Internal threaded groove; 409. Through hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 , Figure 2 and Figure 3The figure shows a pressurized temperature sensor, including a temperature sensor body 1 and a leak-proof structure 4. A probe 2 is provided on the temperature sensor body 1. The leak-proof structure 4 is connected to the outer side of the top of the probe 2 through the mounting structure 3. The leak-proof structure 4 includes a ball valve 401 and bolts 402. Several bolts 402 are provided above the ball valve 401 on the probe 2. The top of the bolt 402 has an internal thread groove 408 that matches itself. A nitrile rubber ring 403 is provided inside the internal thread groove 408. The bottom of the bolt 402 has a through hole 409 that communicates with the internal thread groove 408. The bolt 402 at the lowest position is threaded to the inlet of the ball valve 401. The ends of the remaining bolts 402 are screwed into the internal thread grooves 408 at adjacent positions in sequence. One end of the probe 2 passes through the internal thread groove 408, the through hole 409 and the ball valve 401 channel in sequence.

[0018] It is worth noting that by connecting the insertion tube 406 to the bottom of the pipe to be tested, and then assembling the ball valve 401, bolt 402, and nitrile rubber ring 403 in sequence, after opening the ball valve 401, the insertion depth of the probe 2 can be precisely controlled by adjusting the number of bolts 402 to ensure that it can contact the liquid to be tested, thereby ensuring the accuracy of the measurement. The probe 2 passes through the nitrile rubber ring 403, the internal thread groove 408, the through hole 409, and the channel of the ball valve 401 in sequence, and finally contacts the liquid to be tested to complete the measurement. The nitrile rubber ring 403 ensures the sealing of the probe 2 after insertion, effectively reducing the risk of liquid leakage from the pipe and ensuring the sealing of the measurement. When it is necessary to repair the temperature sensor body 1, the temperature sensor body 1 can be pulled out and the ball valve 401 can be closed, which can prevent the liquid in the pipe from flowing out, thereby reducing the waste of resources.

[0019] Please see Figure 1 and Figure 3 The thread length on the bolt 402 is equal to the internal depth of the internal thread groove 408, ensuring that the threaded end of the bolt 402 is completely screwed into the internal thread groove 408 without any protruding part, thus maintaining high aesthetics.

[0020] See Figure 2 and Figure 3 The bottom of the bolt 402 is provided with a receiving groove 407 that communicates with the through hole 409. The receiving groove 407 matches the nitrile rubber ring 403. It is worth noting that the receiving groove 407 fits the nitrile rubber ring 403. During the assembly process, the nitrile rubber ring 403 can be pre-placed into the receiving groove 407 to achieve positioning and installation, thereby simplifying the installation process of the nitrile rubber ring 403 and bringing convenience to the operation.

[0021] See Figure 1 and Figure 2The installation structure 3 includes a sleeve 301. The top end of the probe rod 2 is fixedly fitted with the sleeve 301. The bottom end of the sleeve 301 is fixedly connected with a nut 302. The bottom end of the nut 302 is fixedly connected with a first external threaded tube 303. The first external threaded tube 303 matches the internal threaded groove 408. By screwing the first external threaded tube 303 into the internal threaded groove 408 located at the highest position, the stable installation of the entire temperature sensor body 1 is ensured.

[0022] See Figure 2 The ball valve 401 is threaded to the bottom of a second external threaded tube 405, and the bottom end of the second external threaded tube 405 is fixedly connected to an insertion tube 406. It is worth noting that the insertion tube 406 is connected to the bottom of the pipe to be tested. The reason why the insertion tube 406 is set at the bottom of the pipe is that the liquid stays at the bottom of the pipe, so that the probe 2 is always in contact with the liquid, ensuring the accuracy of the measurement.

[0023] A washer 404 is provided at the top of the ball valve 401. The washer 404 allows the bolt 402 at the lowest position to be screwed into the ball valve 401, generating a certain elastic tension. This tension helps to enhance the firmness of the installation, ensures a tight connection between the various components, and prevents leakage or failure due to loosening.

[0024] Working principle: Connect the insertion tube 406 to the bottom of the pipe containing the liquid to be tested. Assemble the ball valve 401, bolt 402, and nitrile rubber ring 403 in sequence. After opening the ball valve 401, the insertion depth of the probe 2 can be precisely controlled by adjusting the number of bolts 402 to ensure that it can contact the liquid to be tested, thereby ensuring the accuracy of the measurement. The probe 2 passes through the nitrile rubber ring 403, the internal thread groove 408, the through hole 409, and the channel of the ball valve 401 in sequence, and finally contacts the liquid to be tested to complete the measurement. The nitrile rubber ring 403 ensures the sealing of the probe 2 after insertion, effectively reducing the risk of liquid leakage from the pipe and ensuring the sealing of the measurement. When it is necessary to maintain the temperature sensor body 1, the temperature sensor body 1 can be pulled out and the ball valve 401 can be closed to prevent the liquid in the pipe from flowing out, thereby reducing the waste of resources.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising" – "including" or any other variations thereof are intended to cover non-exclusive inclusion, such that a process – method – article or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process – method – article or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure-mounted temperature sensor, comprising a temperature sensor body (1) and a leak-proof structure (4), characterized in that: A probe (2) is provided on the temperature sensor body (1). A leak-proof structure (4) is connected to the outer side of the top of the probe (2) through the mounting structure (3). The leak-proof structure (4) includes a ball valve (401) and bolts (402). Several bolts (402) are provided on the probe (2) above the ball valve (401). The top of the bolt (402) is provided with an internal thread groove (408) that matches itself. A nitrile rubber ring (403) is provided inside the internal thread groove (408). The bottom of the bolt (402) is provided with a... The through hole (409) connected to the internal thread groove (408) is connected to the inlet thread of the ball valve (401) by the bolt (402) at the lowest position. The ends of the remaining bolts (402) are screwed into the internal thread groove (408) at the adjacent positions in sequence. One end of the probe (2) passes through the internal thread groove (408), the through hole (409) and the ball valve (401) channel in sequence. The bottom of the bolt (402) is provided with a receiving groove (407) connected to the through hole (409). The receiving groove (407) matches the nitrile rubber ring (403).

2. The pressure-mounted temperature sensor according to claim 1, characterized in that: The thread length on the bolt (402) is equal to the internal depth of the internal thread groove (408).

3. A pressure-mounted temperature sensor according to claim 1, characterized in that: The installation structure (3) includes a sleeve (301), the top end of the probe rod (2) is fixedly fitted with the sleeve (301), the bottom end of the sleeve (301) is fixedly connected with a nut (302), the bottom end of the nut (302) is fixedly connected with a first external threaded tube (303), and the first external threaded tube (303) matches the internal threaded groove (408).

4. A pressure-mounted temperature sensor according to claim 1, characterized in that: The ball valve (401) is threaded to the bottom of a second external threaded tube (405), and the bottom end of the second external threaded tube (405) is fixedly connected to a tube (406).

5. A pressure-mounted temperature sensor according to claim 1, characterized in that: A gasket (404) is provided at the top of the ball valve (401).

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