Thermal resistor base with non-return and cut-off functions

Abstract

The utility model relates to the field of metallurgy, in particular to a thermal resistor base with non-return and cut-off functions, which comprises a non-return base, the non-return base comprises a cavity, the middle of the cavity is hollowed out, and the thermal resistor base with the non-return and cut-off functions is provided with the non-return base, so that internal media can be effectively prevented from flowing back after a thermal resistor is drawn out. Meanwhile, the ball valve is installed, so that the effect of cutting off the medium can be achieved, the sealing performance and practicability of the thermal resistor base with the non-return and cutting-off functions are further improved, the situation that resources are wasted due to medium loss is avoided, and the use cost is further reduced; according to the thermal resistor base with the non-return and cut-off functions, the reliability of the thermal resistor base with the non-return and cut-off functions is embodied, meanwhile, the supporting pipe and the supporting rod are installed, a thermal resistor can make contact with a medium more easily for detection when the base is installed, meanwhile, the installation stability is improved, and the practicability of the thermal resistor base with the non-return and cut-off functions is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to a thermal resistor base with non-return and cut-off functions. Background Art

[0002] As an important temperature sensing element, thermistors play a vital role in various processes in the metallurgical industry. Thermistor bases are components used to install and secure thermistors. They usually work closely with thermistors to ensure that thermistors can accurately measure temperature. In the metallurgical industry, thermistors are often inserted into pipelines to monitor the temperature changes of the internal fluids in real time.

[0003] At present, when measuring the temperature of energy media in pipelines, existing thermal resistors are usually installed by drilling holes in the pipeline and then connecting the thermal resistors through threaded connections. After long-term use, the thermal resistors will be worn and cracked due to long-term flushing in the pipeline. Therefore, we need to regularly pull out the thermal resistors for inspection and replacement. However, during the pull-out process, there is still pressurized fluid energy media inside the pipeline. Since the thermal resistor installation has no check and cut-off function, the energy medium will overflow along the thermal resistor installation hole, which greatly increases the cost of use and reduces the convenience and practicality of using thermal resistors to measure media in pipelines. Summary of the Invention

[0004] The main purpose of the utility model is to solve the above-mentioned existing technical problems and provide a thermal resistor base with non-return and cut-off functions.

[0005] The specific scheme of the utility model is: a thermal resistor base with non-return and cut-off functions, including a non-return base, the non-return base including a cavity, the middle part of the cavity is hollowed out, wherein two adjacent surfaces are provided with openings a and are connected to the cavity, a sealing mechanism is provided inside the cavity, the sealing mechanism includes a guide shaft, both ends of the guide shaft are respectively fixed to the inner wall of the cavity, a torsion spring and a connecting rod are provided on the surface of the guide shaft, the connecting rod is rotatably connected to the guide shaft, the connecting rod is located on one side of the torsion spring, and the connecting rod is connected to a sealing cover at one end away from the guide shaft, a sealing port is extended downward from the opening a at one end of the cavity, the sealing port is located inside the cavity and on one side of the sealing cover, the sealing port is respectively connected with the opening a and the cavity, the sealing port is adapted to the sealing cover, a rubber layer is provided inside the opening a and is located above the sealing port, a circular hole is provided on the rubber layer, a rubber sheet is provided in the circular hole, and a gap is provided between the end of the rubber sheet away from the circular hole and the inner wall of the circular hole.

[0006] According to the above technical solution, the thermal resistor passes through the top opening a, then penetrates the circular hole and finally pushes the sealing cover inward. The sealing cover is flipped by the connecting rod, and at the same time, the torsion spring is pushed to perform elastic force storage movement. Finally, the thermal resistor passes through the bottom opening a, and finally the thermal resistor is fixed to the top of the cavity through the flange to complete the installation. When pulled out, the sealing cover automatically seals the sealing port, and at the same time, the circular hole is automatically fitted with the rubber sheet to seal the circular hole elastically, thereby preventing the medium from leaking out.

[0007] Furthermore, a ball valve is detachably mounted on the bottom end of the cavity, and the bottom end of the cavity is connected to the ball valve.

[0008] According to the above technical solution, the thermal resistor passes through the cavity and then through the center of the ball valve, and finally passes through the ball valve to contact the medium to achieve the purpose of detecting the medium. When the thermal resistor is pulled out, the ball valve can be quickly closed to achieve the effect of cutting off the medium.

[0009] Furthermore, a sealing layer is provided on the surface of the sealing cover.

[0010] According to the above technical solution, the sealing effect of the sealing cover is further improved by the sealing layer, thereby avoiding the occurrence of medium penetration.

[0011] Furthermore, a support tube is detachably mounted on the bottom of the ball valve. The middle of the support tube is hollowed out, and two adjacent surfaces are provided with openings b. The bottom of the ball valve is connected to the openings b, so that the bottom of the ball valve is in communication with the support tube.

[0012] According to the above technical solution, the support tube can make the thermal resistor more easily contact the internal medium, and at the same time, the effect of installing the integral base is also achieved.

[0013] Furthermore, support rods are provided at both ends of the support tube.

[0014] According to the above technical solution, the firmness of the support tube can be further improved by the support rod, thereby improving the stability of the top check base and the ball valve.

[0015] Compared with the prior art, the utility model has the following advantages: the thermal resistor base with non-return and cut-off functions is installed with a non-return base, which can effectively prevent the internal medium from flowing back after the thermal resistor is pulled out, resulting in medium loss; at the same time, the ball valve is installed to achieve the effect of cutting off the medium, further improving the sealing and practicality of the thermal resistor base with non-return and cut-off functions, avoiding the waste of resources caused by medium loss, further reducing the cost of use, and embodying the reliability of the thermal resistor base with non-return and cut-off functions; at the same time, the support tube and support rod are installed, which not only makes it easier for the thermal resistor to contact the medium for detection when the base is installed, but also improves the stability of the installation, and further improves the practicality of the thermal resistor base with non-return and cut-off functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 A magnified view of the structure at point C;

[0018] Figure 3 This is a front cross-sectional view of the check seat and ball valve structure;

[0019] Figure 4 yes Figure 3 AA cross-sectional view;

[0020] Figure 5 yes Figure 4 A magnified view of the structure at D;

[0021] Figure 6 yes Figure 3 BB cross-sectional view;

[0022] In the figure: 1. Cavity; 2. Opening a; 3. Flange; 4. Thermal resistor; 5. Guide shaft; 6. Torsion spring; 7. Connecting rod; 8. Sealing cover; 9. Sealing port; 10. Rubber layer; 11. Round hole; 12. Rubber sheet; 13. Sealing layer; 14. Ball valve; 15. Ball; 16. Support tube; 17. Opening b; 18. Support rod. DETAILED DESCRIPTION

[0023] Example 1

[0024] See also Figure 1-6, This embodiment is a thermal resistor base with non-return and cut-off functions, a thermal resistor base composed of a non-return base and other structures, the non-return base includes a cavity 1, the middle of the cavity 1 is hollowed out and the top and bottom ends are respectively provided with openings a2, both ends of the opening a2 are integrally formed with flanges 3, which are convenient for installation and fixation with the thermal resistor 4 and the installation and fixation of the cavity 1, the opening a2 is connected to the inside of the cavity, a sealing mechanism is installed inside the cavity 1, the sealing mechanism includes a guide shaft 5, both ends of the guide shaft 5 are respectively fixedly welded to the inner wall of the cavity 1, a torsion spring 6 and a connecting rod 7 are set on the surface of the guide shaft 5, the connecting rod 7 is rotatably connected to the guide shaft 5, and the connecting rod 7 is respectively located on both sides of the torsion spring 6, the movable end of the torsion spring 6 is in contact with the connecting rod 7, and the fixed end is fixed to the inner wall of the cavity 1, and the connecting rod 7 is fixed to the inner wall of the cavity 1. A sealing cover 8 is welded to the end of the connecting rod 7 away from the guide shaft 5, and a sealing port 9 is extended downward from the top opening a2 of the cavity 1. The sealing cover 8 is used to seal the sealing port 9. The sealing port 9 is located inside the cavity 1 and on the top side of the sealing cover 8. The sealing port 9 is connected with the opening a2 and the cavity respectively. The diameter of the sealing port 9 is consistent with the diameter of the sealing cover 8. A rubber layer 10 is fixed inside the top opening a2 and is located above the sealing port 9. A circular hole 11 is provided at the center of the rubber layer 10. Four rubber sheets 12 are provided in the circular hole 11. The rubber sheet 12 is fan-shaped to seal the circular hole 11. A gap is provided between the end of the rubber sheet 12 away from the circular hole 11 and the inner wall of the circular hole 11, and the rubber sheets 12 are separated from each other, so that the thermal resistor 4 can pass through the circular hole 11.

[0025] Furthermore, a sealing layer 13 is fixed on the surface of the sealing cover 8 , and the sealing layer 13 is made of rubber material, which can further improve the sealing effect of the sealing cover 8 when sealing the sealing opening 9 .

[0026] The working principle of this embodiment is as follows: when in use, first align the bottom opening a2 of the cavity 1 with the mounting hole on the pipe and fix it through the flange 3, then the check base can be installed. When installing the thermal resistor 4, first pass the bottom end of the thermal resistor 4 through the top opening a2 of the cavity 1 and then penetrate the middle circular hole 11 of the rubber layer 10 to push the rubber sheet 12 open, and finally push the sealing cover 8 through the bottom end. At this time, the sealing cover 8 rotates on the guide shaft 5 through the connecting rod 7, and at the same time pushes the torsion spring 6 to perform elastic force storage movement. When the sealing port 9 is opened, it can be passed into the interior, and finally the bottom end of the thermal resistor 4 passes through the bottom opening a2 of the cavity 1, so that the thermal resistor 4 contacts the medium in the pipe to achieve the installation effect. When disassembling, first remove the flange 3 of the thermal resistor 4. Unload and then slowly withdraw the thermal resistor 4. Since the thermal resistor 4 penetrates into the circular hole 11, it can effectively prevent part of the medium from flowing out through the gap between the sealing cover 8 and the sealing port 9 during the process of resealing the sealing port 9. When the thermal resistor 4 is withdrawn to the upper part of the sealing cover 8, the sealing cover 8 loses the obstruction of the thermal resistor 4, and the torsion spring 6 makes elastic movement again to push the sealing cover 8 toward the sealing port 9 for sealing, thereby preventing the internal medium from flowing back. When the thermal resistor 4 is completely withdrawn, the circular hole 11 of the rubber layer 10 is automatically sealed by the elastic effect of the rubber sheet 12, which can further improve the sealing effect, thereby avoiding the waste of resources caused by the outflow of the medium in the pipeline when the thermal resistor 4 is disassembled, and reducing the use cost.

[0027] Example 2

[0028] See also Figure 1-6 This embodiment adds the following features on the basis of the first embodiment: a DN50 ball valve 14 is detachably mounted on the bottom end of the cavity 1 through the flange 3. The bottom end of the cavity 1 is connected to the ball valve 14. A ball 15 with a through hole is provided in the ball valve 14, so that the thermal resistor 4 can pass through the ball valve 14. The ball valve 14 can be purchased directly.

[0029] Furthermore, the bottom end of the ball valve 14 is detachably connected to a support tube 16 through a flange 3. The middle portion of the support tube 16 is hollowed out and openings b17 are provided at the top and bottom ends. The bottom of the ball valve 14 is connected to the opening b17, so that the bottom of the ball valve 14 is connected to the support tube 16, so that the thermal resistor 4 can pass through the ball valve 14 and then be installed in the support tube 16. The support tube 16 can effectively allow the medium to flow out of the support tube 16, making it easier for the thermal resistor 4 to contact the medium when installed.

[0030] Furthermore, support rods 18 are welded to both ends of the support tube 16 , which can further improve the stability of the support tube 16 and the top base.

[0031] The working principle of this embodiment is as follows: during installation, the support tube 16 is first welded and fixed to the embedded hole of the pipeline, and the support tube 16 is welded to the pipeline to improve support. Then the bottom end of the cavity 1 is installed with the top of the ball valve 14 through the flange 3. Finally, the bottom of the ball valve 14 is connected to the top of the support tube 16 through the flange 3 to complete the installation of the entire base. When installing the thermal resistor 4, the ball valve 14 is first opened so that the through hole of the internal ball 15 is vertically oriented, so that the thermal resistor 4 passes through the through hole in the ball 15 through the ball valve 14, and finally penetrates into the support tube 16 and contacts the internal medium to complete the installation. When disassembling, when the thermal resistor 4 is pulled out, the ball valve 14 is closed again to cut off the medium. It can achieve the effect of non-return and cutting off in combination with its check base, making the base practical, further improving safety, and preventing medium outflow, thereby highlighting the practicality and reliability of the thermal resistor base with non-return and cutting off functions.

Claims

1. A thermal resistor base with non-return and cut-off functions, characterized in that: The invention relates to a non-return base, which includes a cavity, a hollow middle portion of the cavity, two adjacent surfaces of which are provided with openings a and connected to the cavity, a sealing mechanism being provided inside the cavity, and the sealing mechanism including a guide shaft, both ends of the guide shaft being respectively fixed to the inner wall of the cavity, a torsion spring and a connecting rod being provided on the surface of the guide shaft, the connecting rod being rotatably connected to the guide shaft, the connecting rod being located on one side of the torsion spring, and a sealing cover being connected to the end of the connecting rod away from the guide shaft, a sealing port being provided downwardly extending from the opening a at one end of the cavity, the sealing port being located inside the cavity and on one side of the sealing cover, the sealing port being connected to the opening a and the cavity respectively, the sealing port being adapted to the sealing cover, a rubber layer being provided inside the opening a and being located above the sealing port, a circular hole being provided on the rubber layer, a rubber sheet being provided in the circular hole, and a gap being provided between the end of the rubber sheet away from the circular hole and the inner wall of the circular hole.

2. The thermal resistor base with non-return and cut-off functions according to claim 1, characterized in that: A ball valve is detachably mounted on the bottom end of the cavity, and the bottom end of the cavity is communicated with the ball valve.

3. A thermal resistor base with non-return and cut-off functions according to claim 1 or 2, characterized in that: A sealing layer is provided on the surface of the sealing cover.

4. The thermal resistor base with non-return and cut-off functions according to claim 2, characterized in that: The bottom of the ball valve is detachably mounted with a support tube, the middle of the support tube is hollowed out, and two adjacent surfaces are provided with openings b, the bottom of the ball valve is connected to the openings b, so that the bottom of the ball valve is in communication with the support tube.

5. The thermal resistor base with non-return and cut-off functions according to claim 4, characterized in that: Support rods are provided at both ends of the support tube.

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