Sensor for measuring internal temperature of pipeline

Abstract

The utility model relates to the field of temperature measurement sensors, and discloses a sensor for measuring the internal temperature of a pipeline, the sensor comprises a junction box and a connecting ring, the bottom end of the junction box is fixedly provided with a detection pipe, the surface of the detection pipe is slidably connected with a movable bolt, and the surface of the connecting ring is fixedly provided with a plurality of sealing rings. The inner wall of the connecting ring is fixedly connected with a plurality of fixing frames, the fixing frames are distributed in a circumferential array mode with the center of the connecting ring as the axis, the inner wall of the connecting ring is connected with the surface of the detection pipe in a clamped mode, and the size specification of the inner wall of the connecting ring is in interference fit with the size specification of the surface of the detection pipe. The connecting ring and the sealing ring which are made of rubber materials are installed on the inner wall of the movable bolt, the multiple fixing frames are installed on the inner wall of the connecting ring so that the connecting ring can be connected with the surface of the detection pipe through the fixing frames, the connecting position of the detection pipe and the movable bolt is shielded in cooperation with the sealing ring, and the situation that liquid on the inner wall of the container leaks out is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of temperature measurement sensors, in particular to a temperature measurement sensor for inside a pipeline. BACKGROUND

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal, which is usually an electrical signal such as a change in voltage, current or resistance value, for subsequent processing, display or control. The temperature sensor realizes the conversion of non-electric quantity to electric quantity through its sensitive element, and is an important bridge between modern information technology and industrial control. Taking the most commonly used thermal resistance temperature sensor as an example, its working principle is based on the characteristic that the resistivity of metal materials changes with temperature. When the temperature changes, the micro parameters such as electron mobility and lattice vibration of metal materials change, which causes the resistivity to change. For a platinum thermal resistance (Pt100), its resistance value is 100Ω at 0℃, and the resistance value increases approximately linearly with the increase of temperature. By measuring the change of resistance value and combining the known resistance-temperature relationship curve, the temperature of the measured object can be calculated. When a conventional temperature sensor is installed, a junction box is installed on the surface of the equipment by means of a movable bolt, and a detection tube is installed at the bottom end of the junction box. The detection tube changes the resistance value of the junction box by following the temperature change of the measured object, so as to detect the temperature of the measured object.

[0003] For the related technology in the above, the inventors believe that when a conventional temperature sensor is installed, the length of the detection tube needs to be adjusted according to the depth of the measured object due to the different depths of the measured object inside, which causes a gap to exist at the connection between the movable bolt and the detection tube. After the measured object is filled with liquid, the liquid may leak.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it can include prior art known by those skilled in the art. CONTENT OF THE INVENTION

[0005] In order to solve the problem of poor sealing of the temperature measurement sensor after installation, the present application provides a temperature measurement sensor for inside a pipeline.

[0006] The temperature measurement sensor for inside a pipeline provided by the present application adopts the following technical solution:

[0007] The utility model provides a kind of for pipeline internal temperature measuring sensor, including terminal box and connecting ring, the bottom end of the terminal box is fixedly installed with detection tube, the surface of the detection tube is slidably connected with movable bolt, the surface of the connecting ring is fixedly installed with several sealing rings, and the inner wall of connecting ring is fixedly connected with several fixed frame, several The fixed frame is distributed in the form of circular array with connecting ring center as axis, the inner wall of connecting ring is clamped with the surface of detection tube, and the size specification of connecting ring inner wall and the size specification of detection tube surface are interference fit, the connecting ring and sealing ring are all rubber ring.

[0008] Preferably, the top of the fixed frame is fixedly installed with a connecting frame, the bottom end of the connecting frame is fixedly connected with the top of the connecting ring, and the size specification of the bottom end of the connecting frame is adapted to the size specification of the surface of the connecting ring.

[0009] Preferably, one end of the connecting frame is fixedly installed with a mounting frame, the inner wall of the mounting frame is clamped with the surface of the detection tube, and the surface of the mounting frame is threadedly connected with a fixing ring, the center of the fixing ring is on the same straight line with the center of the detection tube.

[0010] Preferably, the bottom end of the fixing ring is fixedly installed with a limiting ring, the center of the limiting ring is on the same straight line with the center of the fixing ring, and the limiting ring is a polyurethane ring.

[0011] Preferably, the surface of the connecting frame is rotatably connected with two limiting frames, the two limiting frames are symmetrically distributed with the connecting frame as the axis, and the bottom end of the limiting frame is clamped with a clamping ring, the inner wall of the clamping ring is fixedly installed with the surface of the movable bolt.

[0012] Preferably, the top of the limiting frame is rotatably connected with a rotating frame, the inner wall of the rotating frame is threadedly installed with a connecting bolt, one end of the connecting bolt is rotatably installed with a bearing, one end of the bearing is rotatably connected with an adjusting ring, the inner wall of the adjusting ring is slidably installed with the surface of the detection tube.

[0013] Preferably, one end of the rotating frame is fixedly connected with a spring, the end of the spring away from the rotating frame is fixedly installed with the surface of the bearing, and the center of the spring is on the same straight line with the center of the connecting bolt.

[0014] In summary, the present application includes the following technical effects:

[0015] 1. By installing the connecting ring and the sealing ring of rubber material in the inner wall of the movable bolt, the inner wall of the connecting ring is provided with a plurality of fixing frames, so as to shield the connection between the detection tube and the movable bolt by means of the sealing ring, the top of the connecting frame is provided with a mounting frame, and the bottom end of the mounting frame is connected with the top of the connecting ring, so as to support the inner wall of the connecting ring by means of the mounting frame and the connecting frame, the top of the connecting frame is provided with a mounting frame, and the surface of the mounting frame is threadedly connected with a fixing ring, so as to rotate the fixing ring to connect the mounting frame and the surface of the detection tube, and the bottom end of the fixing ring is provided with a limiting ring of polyurethane material, so as to prevent the fixing ring from loosening by means of the limiting ring; compared with the prior art, the sealing between the movable bolt and the detection tube is effectively improved;

[0016] 2. The limiting frame can also be installed at both ends of the connecting frame, the bottom end of the limiting frame is clamped with the surface of the movable bolt, the top of the limiting frame is provided with a rotating frame, the top of the rotating frame is provided with a connecting bolt, one end of the connecting bolt is provided with an adjusting ring by means of a bearing, the inner wall of the adjusting ring is slidingly connected with the surface of the detection tube, so as to adjust and fix the limiting frame by means of the connecting bolt, a spring is installed between the rotating frame and the bearing, so as to improve the stability of the limiting frame by means of the spring, and prevent the limiting frame and the clamping ring from being separated due to loosening of the connecting bolt; the use effect of the device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic diagram of a pipe internal temperature measurement sensor according to the application;

[0018] Figure 2 It is a connecting ring structure schematic diagram according to the application;

[0019] Figure 3 It is a side view structure schematic diagram according to the application;

[0020] Figure 4 It is a structure schematic diagram of A according to the application.

[0021] Mark explanation: 1, junction box; 2, detection tube; 3, movable bolt; 4, connecting ring; 5, sealing ring; 6, fixing frame; 7, connecting frame; 8, mounting frame; 9, fixing ring; 10, limiting ring; 11, limiting frame; 12, clamping ring; 13, rotating frame; 14, connecting bolt; 15, bearing; 16, adjusting ring; 17, spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings Figure 1 to make further detailed description of the application.

[0023] The embodiment of the application discloses a kind of for pipeline internal temperature measuring sensor, refer to Figure 1 Figure 2 Including terminal box 1, when installing, terminal box 1 is installed on the surface of equipment by means of movable bolt 3, the bottom end of terminal box 1 is equipped with detection tube 2, the resistance value of terminal box 1 is changed by detection tube 2 following the temperature change of measured object, so as to detect the temperature of measured object, the connecting ring 4 of rubber material is installed in the inner wall of movable bolt 3, the inner wall of connecting ring 4 is equipped with several fixed frame 6, connecting ring 4 is connected with the surface of detection tube 2 by fixed frame 6, and sealing ring 5 is shielded at the connecting place of detection tube 2 and movable bolt 3, effectively improve the sealing between movable bolt 3 and detection tube 2, avoid the situation that liquid leaks from the inner wall of container.

[0024] Refer to Figure 2 The top of several connecting frames 7 is equipped with mounting bracket 8, the bottom end of mounting bracket 8 is connected with the top of connecting ring 4, mounting bracket 8 and connecting frame 7 are used to support the inner wall of connecting ring 4, to avoid the situation that connecting ring 4 is deformed and separated from movable bolt 3, mounting bracket 8 is installed on the top of connecting frame 7, and fixed ring 9 is screw connected to the surface of mounting bracket 8, mounting bracket 8 and detection tube 2 are clamped by rotating fixed ring 9, so that connecting ring 4 is fixed at appropriate position, and the bottom end of fixed ring 9 is equipped with limiting ring 10 made of polyurethane, the friction between fixed ring 9 and fixed frame 6 is improved by limiting ring 10, to prevent the loosening of fixed ring 9.

[0025] Refer to Figure 3 Figure 4 Limiting frame 11 is installed at both ends of connecting frame 7, the bottom end of limiting frame 11 is clamped with surface snap ring 12 of movable bolt 3, connecting frame 7 at the bottom end of connecting ring 4 is kept mounted on the surface of movable bolt 3 by limiting frame 11 and snap ring 12, to effectively improve the stability of connecting ring 4, rotating frame 13 is installed on the top of limiting frame 11, connecting bolt 14 is installed on the top of rotating frame 13, adjusting ring 16 is installed on one end of connecting bolt 14 by means of bearing 15, the rotation of connecting bolt 14 is facilitated by bearing 15, the inner wall of adjusting ring 16 is slidingly connected with the surface of detection tube 2, to limit the angle of one end of connecting bolt 14, limiting frame 11 on the surface of rotating frame 13 is rotated by controlling connecting bolt 14, to facilitate the adjustment and fixation of limiting frame 11, spring 17 is installed between rotating frame 13 and bearing 15, to push one end of rotating frame 13 by spring 17, to effectively improve the stability of limiting frame 11, to avoid the separation of limiting frame 11 and snap ring 12 due to the loosening of connecting bolt 14.

[0026] ​​The implementation principle of the temperature measuring sensor for the pipeline inside is as follows: the connecting ring 4 made of rubber material and the sealing ring 5 are installed on the inner wall of the movable bolt 3, the inner wall of the connecting ring 4 is provided with a plurality of fixing frames 6, so as to connect the connecting ring 4 and the surface of the detection tube 2 by means of the fixing frames 6, and the sealing ring 5 is matched to shield the connecting position of the detection tube 2 and the movable bolt 3, so as to avoid the leakage of the liquid in the container wall, the top of the connecting frame 7 is provided with the mounting frame 8, the bottom end of the mounting frame 8 is connected with the top of the connecting ring 4, so as to support the inner wall of the connecting ring 4 by means of the mounting frame 8 and the connecting frame 7, so as to avoid the deformation of the connecting ring 4 from the movable bolt 3, the top of the connecting frame 7 is provided with the mounting frame 8, the surface of the mounting frame 8 is threadedly connected with the fixing ring 9, so as to rotate the fixing ring 9 to connect the mounting frame 8 and the surface of the detection tube 2, so as to fix the connecting ring 4 in the appropriate position, and the bottom end of the fixing ring 9 is provided with the limiting ring 10 made of polyurethane, so as to improve the friction between the fixing ring 9 and the fixing frame 6 by means of the limiting ring 10, so as to prevent the loosening of the fixing ring 9.

[0027] The limiting frame 11 can also be installed at both ends of the connecting frame 7, the bottom end of the limiting frame 11 is clamped with the surface of the movable bolt 3 by means of the clamping ring 12, so as to clamp the connecting ring 4 at the bottom end of the connecting frame 7 with the surface of the movable bolt 3 by means of the limiting frame 11 and the clamping ring 12, so as to effectively improve the stability of the connecting ring 4, the top of the limiting frame 11 is provided with the rotating frame 13, the top of the rotating frame 13 is provided with the connecting bolt 14, one end of the connecting bolt 14 is provided with the adjusting ring 16 by means of the bearing 15, the connecting bolt 14 is conveniently rotated by means of the bearing 15, the inner wall of the adjusting ring 16 is slidably connected with the surface of the detection tube 2, and the angle of one end of the connecting bolt 14 is limited, so as to control the rotation of the limiting frame 11 on the surface of the rotating frame 13 after the rotation of the connecting bolt 14, so as to conveniently adjust and fix the limiting frame 11, the spring 17 is installed between the rotating frame 13 and the bearing 15, so as to push one end of the rotating frame 13 by means of the spring 17, and the stability of the limiting frame 11 is effectively improved, and the separation of the limiting frame 11 and the clamping ring 12 caused by the loosening of the connecting bolt 14 is avoided.

[0028] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A temperature measurement sensor for the inside of a pipeline, comprising a junction box (1) and a connecting ring (4), characterized in that: The bottom of the junction box (1) is fixedly installed with a detection tube (2), and the surface of the detection tube (2) is slidably connected with a movable bolt (3). The surface of the connecting ring (4) is fixedly installed with several sealing rings (5), and the inner wall of the connecting ring (4) is fixedly connected with several fixing brackets (6). The several fixing brackets (6) are arranged in a circular array with the center of the connecting ring (4) as the axis.

2. The temperature measurement sensor for the inside of a pipeline according to claim 1, characterized in that: The inner wall of the connecting ring (4) is engaged with the surface of the detection tube (2), and the dimensions of the inner wall of the connecting ring (4) are interference-fitted with the dimensions of the surface of the detection tube (2). Both the connecting ring (4) and the sealing ring (5) are rubber rings.

3. A temperature measurement sensor for the inside of a pipeline according to claim 1, characterized in that: A connecting frame (7) is fixedly installed on the top of the fixed frame (6). The bottom end of the connecting frame (7) is fixedly connected to the top of the connecting ring (4), and the size of the bottom end of the connecting frame (7) is compatible with the size of the surface of the connecting ring (4).

4. A temperature measurement sensor for the inside of a pipeline according to claim 3, characterized in that: One end of the connecting frame (7) is fixedly installed with a mounting frame (8). The inner wall of the mounting frame (8) is snapped into the surface of the detection tube (2), and a fixing ring (9) is threaded onto the surface of the mounting frame (8). The center of the fixing ring (9) is on the same straight line as the center of the detection tube (2).

5. A temperature measurement sensor for the inside of a pipeline according to claim 4, characterized in that: A limiting ring (10) is fixedly installed at the bottom end of the fixed ring (9), and the center of the limiting ring (10) and the center of the fixed ring (9) are on the same straight line.

6. A temperature measurement sensor for the inside of a pipeline according to claim 3, characterized in that: The surface of the connecting frame (7) is rotatably connected to two limiting frames (11). The two limiting frames (11) are symmetrically distributed about the connecting frame (7), and the bottom end of the limiting frame (11) is engaged with a retaining ring (12). The inner wall of the retaining ring (12) is fixedly installed on the surface of the movable bolt (3).

7. A temperature measurement sensor for the inside of a pipeline according to claim 6, characterized in that: The top of the limiting frame (11) is rotatably connected to a rotating frame (13). A connecting bolt (14) is threaded on the inner wall of the rotating frame (13). A bearing (15) is rotatably installed on one end of the connecting bolt (14). An adjusting ring (16) is rotatably connected to one end of the bearing (15). The inner wall of the adjusting ring (16) is slidably installed on the surface of the detection tube (2).

8. A temperature measurement sensor for the inside of a pipeline according to claim 7, characterized in that: A spring (17) is fixedly connected to one end of the rotating frame (13). The end of the spring (17) away from the rotating frame (13) is fixedly installed on the surface of the bearing (15), and the center of the spring (17) is on the same straight line as the center of the connecting bolt (14).

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