Pipe joint with anti-slip structure

Abstract

The invention relates to the technical field of calibration, and discloses a pipe joint with an anti-sliding structure. Wherein the pipe joint comprises an air tap, a jacket nut and an adapter, the jacket nut is in butt joint with the adapter, the pressure sensor is connected with the jacket nut through the air tap, and the adapter is inserted into a pipeline of the atmospheric pressure calibration system. Therefore, the pipe joint can be connected into a whole to form an assembly before being in butt joint with a pipeline of an atmospheric pressure calibration system for use, the disengagement and scattering probability is greatly reduced, and compared with a traditional non-disengagement thread type split pipe joint, the non-disengagement thread type split pipe joint is firmer and more durable.

Description

Technical Field

[0001] The invention relates to the field of calibration technology, and in particular to a pipe joint with an anti-slip structure. Background Art

[0002] The atmospheric sensing measurement device is an electronic device that provides atmospheric pressure data measurement, analysis and solution for aircraft. The pressure sensor is a type of core sensor of the device. In order to accurately measure the flight altitude, speed and other information of the aircraft, the pressure sensor usually needs to be calibrated and calibrated in the laboratory before use. A type of air path connecting pipe joint is usually used when calibrating the pressure sensor. One end of the pipe joint is connected to the special thread of the pressure sensor, and the other end is connected to the polymer material pipeline of the atmospheric pressure calibration system. For ease of use, this type of pipe joint usually adopts a split structure, but due to the small size and light weight of the parts, the split structure often loses or the sealing surface is damaged, which brings great inconvenience to product development. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a pipe joint with an anti-slip structure, which can solve the problems of the prior art.

[0004] The technical solution of the present invention is: a pipe joint with an anti-slip structure, used to connect a pressure sensor with an atmospheric pressure calibration system, wherein the pipe joint includes an air nozzle, an outer sleeve nut and an adapter, the outer sleeve nut is docked with the adapter, the pressure sensor is connected to the outer sleeve nut through the air nozzle, and the adapter is inserted into the pipeline of the atmospheric pressure calibration system.

[0005] Preferably, the pipe joint further comprises a sealing ring, which is arranged between the pressure sensor and the gas nozzle.

[0006] Preferably, the sealing ring is an O-type rubber sealing ring.

[0007] Preferably, the adapter is provided with a first protrusion and a second protrusion, the width of the first protrusion is greater than the width of the second protrusion, and the outer sleeve nut is provided with a first groove and a second groove, the width of the first groove is greater than the width of the second groove.

[0008] Preferably, the outer sleeve nut is further provided with a recessed groove, and the width of the recessed groove is greater than the width of the first protrusion.

[0009] Through the above technical solution, the pipe joint can be connected into one piece before being connected to the pipeline of the atmospheric pressure calibration system to form a component, which greatly reduces the probability of disengagement and scattering, and is stronger and more durable than the traditional non-threaded split pipe joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1A and 1B A schematic diagram of assembling a pipe joint provided by an embodiment of the present invention in a gas pressure calibration system;

[0012] Figure 2 This is a schematic diagram of the assembly of a pipe joint in an embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the installation of polymer material pipelines in an embodiment of the present invention;

[0014] Figure 4A and 4B is a schematic diagram of an adapter in an embodiment of the present invention;

[0015] Figures 5A-5C Schematic diagram of the outer sleeve nut in an embodiment of the present invention.

[0016] Description of Reference Numerals

[0017] 1. pressure sensor, 2. air nozzle, 3. outer sleeve nut, 4. adapter, 5. pipeline, 6. sealing ring, 7. first protrusion, 8. first groove, 9. second protrusion, 10. second groove, 11. sink groove. DETAILED DESCRIPTION

[0018] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in detail.In the following description, for explanation and not limiting purpose, set forth specific details, to help fully understand the present invention.But it is obvious to those skilled in the art that also can practice the present invention in other embodiment that breaks away from these specific details.

[0019] It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0020] Figure 1A and 1B A schematic diagram of the assembly of a pipe joint provided in an embodiment of the present invention in an air pressure calibration system.

[0021] in, Figure 1A For a stereogram, Figure 1BIt is a cross-sectional view; the adapter is used for calibrating the atmospheric pressure sensor and is an anti-slip pipe connector for connecting the thread to the rubber tube gas line.

[0022] As shown in Figure 1, an embodiment of the present invention provides a pipe joint with an anti-slip structure, which is used to connect a pressure sensor 1 with an atmospheric pressure calibration system, wherein the pipe joint includes an air nozzle 2, an outer sleeve nut 3 and an adapter 4, the outer sleeve nut 3 is docked with the adapter 4, the pressure sensor 1 is connected to the outer sleeve nut 3 through the air nozzle 2, and the adapter 4 is inserted into the pipeline 5 of the atmospheric pressure calibration system, thereby realizing the air circuit connection.

[0023] Through the above technical solution, the pipe joint can be connected into one piece before being connected to the pipeline of the atmospheric pressure calibration system to form a component, which greatly reduces the probability of disengagement and scattering, and is stronger and more durable than the traditional non-threaded split pipe joint.

[0024] According to an embodiment of the present invention, the pipe joint further comprises a sealing ring 6 disposed between the pressure sensor 1 and the gas nozzle 2 .

[0025] By providing a sealing ring, the air path can be sealed.

[0026] According to an embodiment of the present invention, the sealing ring 6 is an O-type rubber sealing ring.

[0027] According to one embodiment of the present invention, the adapter 4 is provided with a first protrusion (wide protrusion) 7 and a second protrusion (narrow protrusion) 9, the width of the first protrusion 7 is greater than the width of the second protrusion 9, and the outer sleeve nut 3 is provided with a first groove (wide groove) 8 and a second groove (narrow groove) 10, the width of the first groove 8 is greater than the width of the second groove 10.

[0028] Specifically, during assembly, the wide protrusion and the narrow protrusion on the adapter 4 can be aligned with the wide groove and the narrow groove on the outer sleeve nut 3 respectively, and then slowly slid in and rotated along the axis to complete the assembly of the pipe joint.

[0029] The pipe joint of the present invention designs specific structural features on the outer sleeve nut 3 and the adapter 4 respectively, and the parts meet a certain matching relationship, so that the two are in a unique position when separated, which greatly reduces the probability of natural separation and achieves the purpose of preventing slipping.

[0030] According to an embodiment of the present invention, a recessed groove 11 is further provided on the outer sleeve nut 3 , and the width of the recessed groove 11 is greater than the width of the first protrusion 7 .

[0031] Specifically, to facilitate the installation of the pipeline, the adapter 4 can be rotated along the axis so that the wide protrusion and the narrow protrusion on the surface of the adapter 4 fall into the sink 11 respectively.

[0032] The pipe joint with the anti-slip structure of the present invention is described below with reference to examples.

[0033] like Figure 2 As shown, during assembly, the wide protrusion and narrow protrusion on the adapter 4 can be aligned with the wide groove and narrow groove on the outer sleeve nut 3 respectively, then slowly slide in, and then rotate along the axis to complete the assembly of the pipe joint. After assembly, because the two assembly methods are unique, and there is a transition fit relationship between size M and size N, as shown in Figures 4 and 5 (wherein, Figure 4A For a stereogram, Figure 4B It is a cross-sectional view with dimensions; Figure 5A It is a schematic diagram of the wide slot, narrow slot and sink side. Figure 5B This is a schematic diagram of the internal thread port. Figure 5C It is a cross-sectional view with dimensions), so it is almost impossible for them to fall off each other during use.

[0034] The installation of the flexible polymer material pipeline 5 and the adapter 4 is generally difficult, which is determined by the sealing method. This part of the installation requires that the polymer material pipeline 5 be pushed toward the adapter 4 with great force so that the adapter 4 is tightened inside the pipeline to achieve a sealing effect. In order to facilitate the installation of the pipeline, the present invention can rotate the adapter 4 along the axis so that the wide protrusion and the narrow protrusion on the surface of the adapter 4 fall into the sink 11 respectively. Since the width dimension D of the sink 11 is larger than (slightly larger than) the dimension N of the wide protrusion, the problem of difficult operation is solved. Since the sink 11 serves to limit the rotation of the adapter 4, the flexible polymer material pipeline 5 can be assembled with 4 by pushing in and twisting at the same time, such as Figure 3 -5.

[0035] It can be seen from the above embodiments that the pipe fitting described in the present invention adopts a split structure, and the parts have an anti-slip structure, which greatly reduces the probability of natural disengagement after assembly. Compared with the non-threaded anti-slip structure, it has the characteristics of simple structure, easy use, strong and reliable.

[0036] Features described and / or illustrated above for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or used in place of features in other embodiments.

[0037] It should be emphasized that the term "include / comprises" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or combinations thereof.

[0038] The above devices and methods of the present invention can be implemented by hardware, or by hardware combined with software. The present invention relates to such a computer-readable program, which, when executed by a logic component, enables the logic component to implement the above-mentioned devices or components, or enables the logic component to implement the above-mentioned various methods or steps. The present invention also relates to a storage medium for storing the above-mentioned program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0039] The many features and advantages of these embodiments are apparent from this detailed description, and thus the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, it is not intended that the embodiments of the invention be limited to the exact construction and operation illustrated and described, but rather all suitable modifications and equivalents falling within the scope thereof are intended to be covered.

[0040] Parts of the present invention that are not described in detail are well known to those skilled in the art.

Claims

1. A pipe joint with an anti-slip structure, used for connecting a pressure sensor (1) with an atmospheric pressure calibration system, characterized in that: The pipe joint comprises a gas nozzle (2), an outer sleeve nut (3) and an adapter (4); the outer sleeve nut (3) is butted against the adapter (4); the pressure sensor (1) is connected to the outer sleeve nut (3) via the gas nozzle (2); and the adapter (4) is inserted into a pipeline (5) of the atmospheric pressure calibration system.

2. The pipe joint according to claim 1, characterized in that: The pipe joint also includes a sealing ring (6) which is arranged between the pressure sensor (1) and the gas nozzle (2).

3. The pipe joint according to claim 2, characterized in that: The sealing ring (6) is an O-type rubber sealing ring.

4. The pipe joint according to claim 3, characterized in that: The adapter (4) is provided with a first protrusion (7) and a second protrusion (9), the width of the first protrusion (7) is greater than the width of the second protrusion (9), and the outer sleeve nut (3) is provided with a first groove (8) and a second groove (10), the width of the first groove (8) is greater than the width of the second groove (10).

5. The pipe joint according to claim 4, characterized in that: The outer sleeve nut (3) is also provided with a recessed groove (11), and the width of the recessed groove (11) is greater than the width of the first protrusion (7).

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