Five-needle temperature and pressure integrated capacitive sensor

Abstract

The utility model relates to a five-pin temperature and pressure integrated capacitive sensor, which belongs to the technical field of five-pin temperature and pressure integrated capacitive sensors and comprises a display dial plate, a medium pipeline is arranged at the bottom of the display dial plate, a connecting cylinder and a detection rod are arranged at the bottom of the display dial plate, and a connecting structure is arranged on the outer surface of the connecting cylinder. According to the five-needle temperature and pressure integrated capacitive sensor, the medium pipeline and the connecting cylinder are designed to be of an inserted connection structure, the medium pipeline is sleeved with the outer sleeve on the outer surface of the connecting cylinder through inserted connection of the connecting cylinder and the medium pipeline, and then the two positioning blocks are turned over and clamped into the grooves in the medium pipeline; the connecting hand rudder is rotationally connected and drives the threaded sleeve to rotate, so that the annular abutting piece moves downwards and extrudes the inclined faces of the two positioning blocks, the two positioning blocks are firmly fixed into the groove, and a gap between the outer sleeve and the medium pipeline is sealed through a rubber ring in the sealing component; therefore, the five-pin temperature and pressure integrated capacitive sensor can be rapidly installed.

Description

Technical Field

[0001] This utility model relates to the technical field of five-pin temperature and pressure integrated capacitive sensors, specifically a five-pin temperature and pressure integrated capacitive sensor. Background Technology

[0002] The five-pin temperature and pressure integrated capacitive sensor is a sensor capable of simultaneously measuring temperature and pressure. Based on the principle of capacitive pressure sensing, it typically consists of two parallel electrode plates forming a capacitor filled with a compressible medium. When the pressure being measured is applied to the medium, the medium is compressed and deformed, thus changing the capacitance value of the capacitor. The pressure value is obtained by measuring the change in capacitance. The temperature measurement principle utilizes the principle that the physical properties of certain materials change with temperature. When the temperature changes, the dielectric constant of the dielectric changes, causing a change in capacitance. The temperature change is calculated by measuring the change in capacitance.

[0003] In existing technologies, the five-pin temperature and pressure integrated capacitive sensor consists of a detection rod, a display dial, and connectors. During installation, one end of the detection rod needs to be inserted into the medium pipe, and then the threaded end of the connector needs to be screwed onto the medium pipe. This process requires workers to use a wrench or pliers to clamp the connector to tighten it, making the installation of the five-pin temperature and pressure integrated capacitive sensor quite troublesome. Therefore, a new five-pin temperature and pressure integrated capacitive sensor is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a five-pin integrated temperature and pressure capacitive sensor, which has advantages such as convenient and quick installation. It solves the problem that the five-pin integrated temperature and pressure capacitive sensor is composed of a detection rod, a display dial, and a connector. During installation, one end of the detection rod needs to be inserted into the medium pipe, and then the threaded end of the connector needs to be screwed into the medium pipe. This process requires the operator to use a wrench or pliers to clamp the connector in order to tighten it, which makes the installation of the five-pin integrated temperature and pressure capacitive sensor relatively troublesome.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a five-needle temperature and pressure integrated capacitive sensor, including a display dial, a medium pipe provided at the bottom of the display dial, a connecting cylinder and a detection rod provided at the bottom of the display dial, and a connecting structure provided on the outer surface of the connecting cylinder;

[0006] The connection structure includes an outer sleeve fixedly installed on the outer surface of the connecting cylinder. The outer sleeve is fitted onto the medium pipeline. The inner top wall of the outer sleeve is provided with a sealing component for sealing the gap between the outer sleeve and the medium pipeline. The left and right sides of the outer sleeve are provided with mounting grooves. Connectors are installed inside the two mounting grooves. Positioning blocks for fixing the medium pipeline are fixedly installed on the top of the two connectors. The outer surface of the outer sleeve is provided with a locking component.

[0007] Furthermore, the locking assembly includes a threaded sleeve that is threaded onto the outer surface of the outer sleeve, the bottom of the threaded sleeve is provided with an annular abutment for abutting against two positioning blocks, and a connecting hand rudder is fixedly installed on the outer surface of the threaded sleeve.

[0008] Furthermore, both the connecting cylinder and the detection rod are fixedly installed at the bottom of the display dial. One end of the detection rod passes through the connecting cylinder and extends into the interior of the medium pipe, and one end of the connecting cylinder passes through and extends into the interior of the medium pipe.

[0009] Furthermore, the sealing component includes a sealing rubber ring, which is an O-ring of fluororubber. The sealing rubber ring is installed on the inner top wall of the outer sleeve, and the outer peripheral wall of the sealing rubber ring is in close contact with the inner wall of the outer sleeve.

[0010] Furthermore, both of the connecting parts include a mounting rod and a triangular connecting block. The mounting rod is fixedly installed between the front and rear side walls of the inner cavity of the mounting groove, and the triangular connecting block is rotatably installed on the outer surface of the mounting rod. The top of the triangular connecting block is welded to the bottom of the positioning block.

[0011] Furthermore, two grooves are formed on the medium pipeline, one end of the positioning block penetrates and extends into the interior of the groove, and two inclined surfaces are provided on the positioning block.

[0012] Furthermore, the threaded sleeve and the annular abutment are integral cast structures, and the inner circumferential wall of the threaded sleeve is provided with threads that are adapted to the outer surface of the outer sleeve.

[0013] Furthermore, the connecting hand rudder includes a connecting ring and four connecting posts. The connecting ring is fixedly installed on the outer surface of the threaded sleeve, and the four connecting posts are all fixedly installed on the outer surface of the connecting ring and are centrally symmetrically distributed.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This five-pin temperature and pressure integrated capacitive sensor features a connection structure that allows the medium pipe and connecting cylinder to be plugged in. The outer sleeve of the connecting cylinder fits onto the medium pipe, and two positioning blocks are flipped and inserted into grooves inside the medium pipe. Rotating the connecting hand rudder rotates the threaded sleeve, causing the annular abutment to move downwards and press against the inclined surfaces of the two positioning blocks, thus firmly fixing them in the grooves. A rubber ring in the sealing component seals the gap between the outer sleeve and the medium pipe, enabling rapid installation of the five-pin temperature and pressure integrated capacitive sensor and enhancing its practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Enlarged view of point A in the image;

[0018] Figure 3 This is a three-dimensional schematic diagram of the structural positioning block and connecting parts of this utility model.

[0019] In the diagram: 1. Display dial; 2. Connecting cylinder; 3. Detection rod; 4. Medium pipeline; 51. Outer sleeve; 52. Sealing component; 53. Mounting groove; 54. Connecting piece; 55. Positioning block; 56. Threaded sleeve; 57. Annular abutment piece; 58. Connecting hand rudder. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 3 The five-pin temperature and pressure integrated capacitive sensor in this embodiment includes a display dial 1. A medium pipe 4 is provided at the bottom of the display dial 1. A connecting cylinder 2 and a detection rod 3 are provided at the bottom of the display dial 1. A connecting structure is provided on the outer surface of the connecting cylinder 2. The connecting cylinder 2 and the detection rod 3 are both fixedly installed at the bottom of the display dial 1. One end of the detection rod 3 passes through the connecting cylinder 2 and extends into the interior of the medium pipe 4. One end of the connecting cylinder 2 passes through and extends into the interior of the medium pipe 4.

[0022] In this embodiment, the connection structure includes an outer sleeve 51 fixedly installed on the outer surface of the connecting sleeve 2. The outer sleeve 51 is sleeved onto the medium pipeline 4. The inner top wall of the outer sleeve 51 is provided with a sealing component 52 for sealing the gap between the outer sleeve 51 and the medium pipeline 4. The sealing component 52 includes a sealing rubber ring, which is an O-ring fluororubber ring. The sealing rubber ring is installed on the inner top wall of the outer sleeve 51, and the outer peripheral wall of the sealing rubber ring is in close contact with the inner wall of the outer sleeve 51 to ensure the sealing performance between the outer sleeve 51 and the medium pipeline 4. The left side of the outer sleeve 51... Both sides of the right side are provided with mounting slots 53. Connectors 54 are installed inside the two mounting slots 53. Positioning blocks 55 for fixing the medium pipeline 4 are fixedly installed on the top of the two connectors 54. Each connector 54 includes a mounting rod and a triangular connecting block. The mounting rod is fixedly installed between the front and rear side walls of the inner cavity of the mounting slot 53. The triangular connecting block is rotatably installed on the outer surface of the mounting rod. The top of the triangular connecting block is welded to the bottom of the positioning block 55, so that the positioning block 55 can rotate around the mounting rod. The outer surface of the outer sleeve 51 is provided with a locking component.

[0023] The medium pipeline 4 has two grooves, one end of the positioning block 55 extends through and into the inside of the groove, and the positioning block 55 has two inclined surfaces, so that one end of the positioning block 55 can be embedded into the inside of the groove and squeeze the medium pipeline 4.

[0024] By adopting the above technical solution and using an O-ring as the sealing component 52, media leakage can be effectively prevented. This ensures that the sensor can maintain good sealing performance in various harsh working environments, such as high temperature and corrosive media, thus guaranteeing the normal operation of the sensor and avoiding potential safety hazards and environmental pollution caused by media leakage. Through the cooperation between the positioning block 55 and the groove on the media pipeline 4, a firm connection between the sensor and the media pipeline 4 is achieved. Under conditions such as vibration, impact, or force generated by media flow that may occur in the media pipeline 4, the sensor can remain stable and will not easily loosen or shift, thereby ensuring the accuracy and continuity of the detection data and improving the reliability of the sensor.

[0025] The inclined surface design on the positioning block 55 allows the sensor to better adapt to media pipes 4 of different diameters. During installation, the inclined surface can guide the positioning block 55 to match the pipe grooves of different sizes. By simply adjusting the position of the positioning block 55, a tight connection with pipes of various diameters can be achieved, thus broadening the application range of the sensor and enabling it to be used in a variety of different industrial pipeline systems.

[0026] In this embodiment, the locking assembly includes a threaded sleeve 56 threadedly mounted on the outer surface of the outer sleeve 51. The bottom of the threaded sleeve 56 is provided with an annular abutment 57 for abutting against two positioning blocks 55. The threaded sleeve 56 and the annular abutment 57 are integrally cast structures. The inner circumferential wall of the threaded sleeve 56 is provided with threads that are adapted to the outer surface of the outer sleeve 51, thereby improving the strength of the threaded sleeve 56. Rotating the threaded sleeve 56 causes the annular abutment 57 to restrict the two positioning blocks 55. A connecting hand rudder 58 is fixedly installed on the outer surface of the threaded sleeve 56.

[0027] The connecting hand rudder 58 includes a connecting ring and four connecting posts. The connecting ring is fixedly installed on the outer surface of the threaded sleeve 56, and the four connecting posts are all fixedly installed on the outer surface of the connecting ring and are centrally symmetrically distributed, which facilitates the operator to rotate the threaded sleeve 56.

[0028] Using the above technical solution, the connecting hand rudder 58 consists of a connecting ring and four connecting posts. This structure makes it easy for operators to grip and apply force, facilitating the installation, disassembly, and maintenance of the sensor. When maintenance work such as inspection, replacement, or recalibration of the sensor is required, operators can easily operate the connecting hand rudder 58 to disassemble the sensor, reducing the difficulty of equipment maintenance and improving the maintainability and service life of the equipment.

[0029] The working principle of the above embodiments is as follows:

[0030] In use, the five-pin temperature and pressure integrated capacitive sensor is fitted onto the medium pipeline 4 with its outer sleeve 51. At this time, the O-ring in the sealing component 52 located on the inner top wall of the outer sleeve 51, utilizing its elasticity, makes tight contact with the outer sleeve 51 and the medium pipeline 4, initially preventing medium leakage. Rotating the connector 54 in the mounting groove 53 causes the triangular connecting block of the connector 54 to rotate around the mounting rod, moving the positioning block 55 closer to the medium pipeline 4. Since the positioning block 55 has two inclined surfaces, these surfaces guide the positioning block 55 to smoothly engage with the groove on the medium pipeline 4 during the approach process. This step achieves the initial positioning and connection of the sensor and the medium pipeline 4.

[0031] Then, by rotating the connecting hand rudder 58, the threaded sleeve 56 rotates on the outer surface of the outer sleeve 51. Because the inner circumferential wall of the threaded sleeve 56 has threads that are adapted to the outer surface of the outer sleeve 51, the threaded sleeve 56 will move downward along the outer sleeve 51. The annular abutment 57 at the bottom of the threaded sleeve 56 will gradually abut against the two positioning blocks 55, further pressing the positioning blocks 55 into the groove of the medium pipe 4, thereby completing the stable connection between the sensor and the medium pipe 4.

[0032] 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] 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 five-pin temperature and pressure integrated capacitive sensor, including a display dial (1), characterized in that: The bottom of the display dial (1) is provided with a medium pipe (4), the bottom of the display dial (1) is provided with a connecting cylinder (2) and a detection rod (3), and the outer surface of the connecting cylinder (2) is provided with a connecting structure; The connection structure includes an outer sleeve (51) fixedly installed on the outer surface of the connecting cylinder (2). The outer sleeve (51) is sleeved on the medium pipeline (4). The inner top wall of the outer sleeve (51) is provided with a sealing component (52) for sealing the gap between the outer sleeve (51) and the medium pipeline (4). The left and right sides of the outer sleeve (51) are provided with mounting grooves (53). Connectors (54) are installed inside the two mounting grooves (53). Positioning blocks (55) for fixing the medium pipeline (4) are fixedly installed on the top of the two connectors (54). The outer surface of the outer sleeve (51) is provided with a locking component.

2. The five-pin temperature and pressure integrated capacitive sensor according to claim 1, characterized in that: The locking assembly includes a threaded sleeve (56) threadedly mounted on the outer surface of the outer sleeve (51). The bottom of the threaded sleeve (56) is provided with an annular abutment (57) for abutting against two positioning blocks (55). A connecting hand rudder (58) is fixedly mounted on the outer surface of the threaded sleeve (56).

3. The five-pin temperature and pressure integrated capacitive sensor according to claim 1, characterized in that: The connecting cylinder (2) and the detection rod (3) are both fixedly installed at the bottom of the display dial (1). One end of the detection rod (3) passes through the connecting cylinder (2) and extends into the interior of the medium pipe (4). One end of the connecting cylinder (2) passes through and extends into the interior of the medium pipe (4).

4. The five-pin temperature and pressure integrated capacitive sensor according to claim 1, characterized in that: The sealing component (52) includes a sealing rubber ring, which is an O-ring of fluororubber. The sealing rubber ring is installed on the inner top wall of the outer sleeve (51), and the outer peripheral wall of the sealing rubber ring is in close contact with the inner wall of the outer sleeve (51).

5. The five-pin temperature and pressure integrated capacitive sensor according to claim 1, characterized in that: Both of the connectors (54) include a mounting rod and a triangular connecting block. The mounting rod is fixedly installed between the front and rear side walls of the inner cavity of the mounting groove (53). The triangular connecting block is rotatably installed on the outer surface of the mounting rod. The top of the triangular connecting block is welded to the bottom of the positioning block (55).

6. The five-pin temperature and pressure integrated capacitive sensor according to claim 1, characterized in that: Two grooves are provided on the medium pipe (4), one end of the positioning block (55) passes through and extends into the inside of the groove, and two inclined surfaces are provided on the positioning block (55).

7. The five-pin temperature and pressure integrated capacitive sensor according to claim 2, characterized in that: The threaded sleeve (56) and the annular abutment (57) are integral cast structures. The inner circumferential wall of the threaded sleeve (56) is provided with threads that are adapted to the outer surface of the outer sleeve (51).

8. The five-pin temperature and pressure integrated capacitive sensor according to claim 2, characterized in that: The connecting hand rudder (58) includes a connecting ring and four connecting posts. The connecting ring is fixedly installed on the outer surface of the threaded sleeve (56), and the four connecting posts are all fixedly installed on the outer surface of the connecting ring and are centrally symmetrically distributed.

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