High-temperature-resistant pressure sensor

Abstract

The utility model relates to the technical field of pressure sensors, and discloses a high-temperature-resistant pressure sensor which comprises a shell, a pressure sensor body is fixedly connected to the upper portion of the interior of the shell, an inner cylinder is fixedly connected to the interior of the shell, a fixing disc is fixedly connected to the outer side of the shell, a buffer column is movably connected to the interior of the fixing disc, and the buffer column is fixedly connected to the interior of the shell. According to the utility model, through the arrangement of the inner cylinder, the heat dissipation rod, the buffer column and the fixed disc, the service life of the pressure sensor is ensured, the pressure sensor body is ensured not to be damaged due to too high temperature, and after heat is absorbed by cold water, the heat is conducted to the heat dissipation rod, so that the heat dissipation effect is improved, and the service life of the pressure sensor is prolonged. Heat is dissipated through the heat dissipation rod, the heat absorption effect of cold water is guaranteed, when the pressure sensor is impacted by foreign objects, the spring can generate reverse acting force, then the foreign objects are prevented from moving continuously, impact is delayed, and it is guaranteed that the pressure sensor cannot be damaged due to impact.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, and more specifically to a high-temperature resistant pressure sensor. Background Art

[0002] A pressure sensor is a device or apparatus that senses pressure signals and converts them into a usable electrical output signal according to specific patterns. A pressure sensor typically consists of a pressure-sensitive element and a signal processing unit. Pressure sensors are the most commonly used sensor in industrial practice and are widely used in various industrial automation environments, including water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemicals, oil wells, electric power, shipbuilding, machine tools, pipelines, and many other industries.

[0003] Deficiencies of the existing technology: When the existing pressure sensor detects high-temperature gas, the high temperature of the gas can easily cause the pressure sensor to be damaged, which is not conducive to its service life. In addition, the pressure sensor is generally directly exposed to the air and is easily impacted by external objects, making the sensor easily damaged by impact. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-temperature resistant pressure sensor to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a high-temperature resistant pressure sensor, comprising a shell, a pressure sensor body fixedly connected to the upper part of the interior of the shell, an inner cylinder fixedly connected to the interior of the shell, a fixed disk fixedly connected to the outer side of the shell, a buffer column movably connected to the interior of the fixed disk, a heat dissipation rod fixedly connected to one side of the buffer column, the buffer column comprising a column, a slider fixedly connected to the top and bottom of the column, and a slide groove provided inside the slider.

[0006] Preferably, the outer shell includes a shell, a first air hole is provided at the upper part of the interior of the shell, an inner cavity is provided between the shell and the inner cylinder, and a second air hole is provided at the lower part of the interior of the shell.

[0007] Preferably, the inner cylinder comprises a cylinder body, and a partition is fixedly connected to the interior of the cylinder body.

[0008] Preferably, the heat dissipation rod comprises a rod body, and a sealing member is movably connected to the outer side of the rod body.

[0009] Preferably, the fixed disk includes a disk body, a movable groove is provided inside the disk body, a sliding column is fixedly connected to the inner side of the disk body, and a spring is movably sleeved on the outer side of the sliding column.

[0010] Preferably, the inner cavity is filled with cold water.

[0011] The technical effects and advantages of this utility model are:

[0012] The utility model is provided with an inner cylinder, a heat dissipation rod, a buffer column and a fixed plate, which is conducive to ensuring the service life of the pressure sensor. When in use, it is installed in a suitable position, and the high-temperature gas enters the inner cylinder through the second air hole. Due to the blocking effect of the partition, the high-temperature gas flows in the inner cylinder for a longer time, and the heat of the high-temperature gas is quickly transferred to the cold water in the inner cavity, so that the temperature of the gas is reduced, so that the pressure sensor body will not be damaged due to excessive temperature. After the heat is absorbed by the cold water, it will be transferred to the heat dissipation rod, and the heat will be dissipated through the heat dissipation rod, ensuring the heat absorption effect of the cold water. When it is impacted by an external object, the buffer column will move inward, and when it moves, it will squeeze the spring. The spring therefore generates a reverse force, thereby preventing the foreign object from continuing to move and delaying the impact. At the same time, when the buffer column moves, it will drive the rod body to move inside the seal. There is a certain friction between the rod body and the seal, further ensuring that the impact can be delayed, and ensuring that the pressure sensor is not damaged due to the impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 3 This is a schematic diagram of the overall structure of the buffer column of the present utility model.

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed disk of the present utility model.

[0017] The figures are marked as follows: 1. outer shell; 101. shell; 102. first air hole; 103. inner cavity; 104. second air hole; 2. pressure sensor body; 3. inner cylinder; 301. cylinder body; 302. partition; 4. heat dissipation rod; 401. rod body; 402. seal; 5. buffer column; 501. column body; 502. slider; 503. slide groove; 6. fixed disk; 601. disk body; 602. slide column; 603. spring; 604. movable groove. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The high-temperature resistant pressure sensor involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] The utility model provides a high-temperature resistant pressure sensor, including a shell 1, a pressure sensor body 2 is fixedly connected to the upper part of the interior of the shell 1, an inner tube 3 is fixedly connected to the interior of the shell 1, a fixed disk 6 is fixedly connected to the outside of the shell 1, a buffer column 5 is movably connected to the interior of the fixed disk 6, a heat dissipation rod 4 is fixedly connected to one side of the buffer column 5, the buffer column 5 includes a column 501, the top and bottom of the column 501 are fixedly connected to a slider 502, a slide groove 503 is provided inside the slider 502, the slider 502 can move in the movable groove 604, and the slide groove 503 is used for it to move on the outside of the slider 602.

[0020] Furthermore, the outer shell 1 includes a shell 101, a first air hole 102 is provided above the inside of the shell 101, an inner cavity 103 is provided between the shell 101 and the inner tube 3, and a second air hole 104 is provided below the inside of the shell 101. The first air hole 102 and the second air hole 104 are used for the passage of high-temperature gas.

[0021] Furthermore, the inner tube 3 includes a cylinder body 301, and a partition 302 is fixedly connected to the interior of the cylinder body 301. The partition 302 is used to block the passage of gas, so that the high-temperature gas can stay in the inner tube 3 for a longer time, ensuring that more heat inside it can be absorbed, thereby ensuring that the pressure sensor body 2 will not be damaged due to excessive temperature.

[0022] Furthermore, the heat dissipation rod 4 includes a rod body 401 , and a sealing member 402 is movably connected to the outer side of the rod body 401 . The sealing member 402 is fixed in the housing 1 , and the rod body 401 can move in the sealing member 402 .

[0023] Furthermore, the fixed disk 6 includes a disk body 601, and a movable groove 604 is provided inside the disk body 601. The inner side of the disk body 601 is fixedly connected to a sliding column 602, and the outer side of the sliding column 602 is movably sleeved with a spring 603. When the buffer column 5 is impacted, it will move on the outside of the sliding column 602 and squeeze the spring 603, causing the spring 603 to generate a reverse force, thereby preventing the foreign object from continuing to move and delaying the impact. At the same time, when the buffer column 5 moves, it will drive the rod body 401 to move inside the seal 402. There is a certain friction between the rod body 401 and the seal 402, which further ensures that the impact can be delayed and ensures that the pressure sensor will not be damaged by the impact.

[0024] Furthermore, the inner cavity 103 is filled with cold water, which is used to absorb heat from the high-temperature gas.

[0025] The working principle of the present invention is as follows: when in use, it is installed in a suitable position, and high-temperature gas enters the inner tube 3 through the second air hole 104. Due to the blocking effect of the partition 302, the high-temperature gas flows in the inner tube 3 for a longer time, so that the heat of the high-temperature gas can be more transferred to the cold water in the inner cavity 103, so that the temperature of the gas is reduced, so that it will not cause damage to the pressure sensor body 2 due to excessive temperature. After the heat is absorbed by the cold water, it will be transferred to the heat dissipation rod 4, and the heat will be dissipated through the heat dissipation rod 4 to ensure the heat absorption effect of the cold water. When the buffer column 5 is impacted, it will move on the outside of the sliding column 602 and squeeze the spring 603, so that the spring 603 generates a reverse force, thereby preventing the foreign object from continuing to move and delaying the impact. At the same time, when the buffer column 5 moves, it will drive the rod body 401 to move inside the seal 402. There is a certain friction between the rod body 401 and the seal 402, which further ensures that the impact can be delayed and ensures that the pressure sensor will not be damaged due to the impact.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0027] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 high temperature resistant pressure sensor, comprising a housing (1), characterized in that: The upper portion of the interior of the housing (1) is fixedly connected to a pressure sensor body (2), the interior of the housing (1) is fixedly connected to an inner cylinder (3), the outer side of the housing (1) is fixedly connected to a fixed disk (6), the interior of the fixed disk (6) is movably connected to a buffer column (5), one side of the buffer column (5) is fixedly connected to a heat dissipation rod (4), the buffer column (5) comprises a column (501), the top and bottom of the column (501) are fixedly connected to a slider (502), and the interior of the slider (502) is provided with a slide groove (503).

2. The high temperature resistant pressure sensor according to claim 1, characterized in that: The outer shell (1) comprises a shell (101), a first air hole (102) is provided at the upper portion of the interior of the shell (101), an inner cavity (103) is provided between the shell (101) and the inner cylinder (3), and a second air hole (104) is provided at the lower portion of the interior of the shell (101).

3. The high temperature resistant pressure sensor according to claim 1, characterized in that: The inner cylinder (3) comprises a cylinder body (301), and a partition plate (302) is fixedly connected to the interior of the cylinder body (301).

4. The high temperature resistant pressure sensor according to claim 1, characterized in that: The heat dissipation rod (4) comprises a rod body (401), and a sealing member (402) is movably connected to the outer side of the rod body (401).

5. The high temperature resistant pressure sensor according to claim 1, characterized in that: The fixed disk (6) comprises a disk body (601), wherein a movable groove (604) is provided inside the disk body (601), a sliding column (602) is fixedly connected to the inner side of the disk body (601), and a spring (603) is movably sleeved on the outer side of the sliding column (602).

6. The high temperature resistant pressure sensor according to claim 2, characterized in that: The inner cavity (103) is filled with cold water.

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