Connecting pipe with connector quick-release structure

Abstract

The utility model relates to the technical field of aero-engine pressing testers, in particular to a connecting pipe with a connector quick release structure, which comprises a clamping mechanism, the clamping mechanism transversely penetrates through the left side and the right side of a first sleeve head, the tail of the first sleeve head is sleeved on the outer wall of one end of a pipe body, the outer wall of the other end of the pipe body is sleeved with a second sleeve head, and the second sleeve head is sleeved on the outer wall of the other end of the pipe body. A plurality of inserting rods are annularly distributed on the inner wall of the second sleeve head, the top ends of the inserting rods are inserted into the inserting grooves, the tail ends of the inserting grooves are welded to the inner wall of the connecting sleeve head, and a sealing piece is arranged on the outer wall of the end, located on the second sleeve head, of the pipe body. According to the improved connecting pipe, the elastic soft cushion is arranged on the inner wall of the pipe body and can adapt to interfaces of different sizes, the clamping mechanism can achieve position limitation of the interface of a tested piece, and the independently arranged connecting sleeve head achieves replacement of the pressure source interface at any time through the fastening screw. And meanwhile, connection and disassembly of the pressure source interface can be quickly realized through the magnetic attraction sheets arranged on the inner walls of the insertion rods and the insertion slots.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation engine pressure testers, in particular to a connecting pipe with a joint quick-disconnect structure. Background Art

[0002] An aircraft engine is a highly complex and sophisticated thermal machine that provides the power required for an aircraft to fly. It is known as the "flower of industry" and is an important manifestation of a country's scientific, industrial and national defense strength. The working principle of an aircraft engine is to convert the heat energy generated by the combustion of fuel into mechanical energy, thereby driving the aircraft forward. It is usually composed of components such as an air intake, a compressor, a combustion chamber, a turbine and a tail nozzle. During operation, air enters the engine through the air intake, enters the combustion chamber after being compressed by the compressor, and is mixed with the fuel and burned. The high-temperature and high-pressure gas generated by the combustion drives the turbine to rotate, and the turbine then drives the compressor and other components to work. Finally, the high-temperature and high-pressure gas is ejected from the tail nozzle, generating a reaction force to propel the aircraft forward.

[0003] The aircraft engine pressure tester is a device used to test the pressure resistance of aircraft engine components or the whole machine. Its working principle is to observe the sealing performance and structural strength under pressure by applying a certain pressure of gas or liquid to the engine components or the whole machine. During the test, the pressure needs to be accurately controlled and monitored to ensure the safety and accuracy of the test. The pressure tester is usually composed of a pressure source, a control system, a test chamber, and a data acquisition system. The pressure source can provide the required pressure, the control system is used to control the application and maintenance of pressure, the test chamber is used to accommodate engine components or the whole machine, and the data acquisition system is used to record parameters such as pressure, temperature, and flow during the test.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. When the connecting pipe in the existing pressure tester is connected to the interface of the test piece, it is necessary to involve multiple matching joints for the interfaces of different sizes and types for connection, thereby increasing the complexity of operation and raising the cost; 2. When the connecting pipe in the existing pressure tester is connected to the interface of the pressure source, it is necessary to be able to replace or repair the pressure source at any time, so there is a lack of a structure that can be quickly disassembled and assembled. Utility Model Content

[0005] The purpose of the utility model is to provide a connecting pipe with a quick-release joint structure, so as to solve the problem that the connecting pipe in the existing pressure tester proposed in the above background technology needs to involve multiple adaptable joints for different sizes of interfaces when connecting with the interface of the test piece, thereby increasing the cumbersomeness of operation and increasing the cost. In addition, when the connecting pipe in the existing pressure tester is connected with the pressure source interface, it is necessary to be able to replace or repair the pressure source at any time, so there is a lack of a structure that can be quickly disassembled and assembled. To achieve the above purpose, the utility model provides the following technical solution: a connecting pipe with a quick-release joint structure, including a clamping mechanism, the clamping mechanism is horizontally passed through the left and right sides of a first sleeve, the tail of the first sleeve is sleeved on the outer wall of one end of the pipe body, the outer wall of the other end of the pipe body is sleeved with a second sleeve, the inner wall of the second sleeve is annularly distributed with a plurality of plug rods, the top end of the plug rod is inserted into the inside of the slot, the tail end of the slot is welded to the inner wall of the connecting sleeve, and the outer wall of the end of the pipe body located at the second sleeve is provided with a sealing member.

[0006] Further preferably, the clamping mechanism consists of a turning handle, a rotating screw, a clamping ring and a silicone pad, wherein the turning handle is arranged at one end of the rotating screw, the clamping ring is arranged at the other end of the rotating screw, the outer wall of the rotating screw is threadedly connected to the left and right inner walls of the first sleeve, and the silicone pad is arranged on the opposite side of the clamping ring.

[0007] Further preferably, an elastic cushion is provided on the inner wall of one side of the tube body close to the first sleeve.

[0008] Further preferably, the top end of the insertion rod and the inner wall of the slot are both provided with magnetic sheets.

[0009] Further preferably, the outer ring of the seal is a rubber ring, and the inner ring is a metal gasket.

[0010] Further preferably, the outer wall of the connecting sleeve is provided with a plurality of connecting screw holes in an annular shape.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the interface is inserted into the inner wall of the tube body laterally so that its outer wall contacts the elastic cushion and is pressed outwardly. The elastic cushion is pushed toward the outer wall of the interface due to its own rebound property, thereby realizing reverse clamping, so as to adapt to interfaces of different sizes and enhance the sealing performance between the inner wall of the tube body and the outer wall of the interface. Then, the handle is turned to drive the rotating screw and the clamping ring to approach the interface of the measured piece until the silicone cushion can fit the outer wall of the interface, thereby firmly fixing the interface position of the measured piece to prevent the interface from falling off during the pressure test.

[0013] In the utility model, the connecting sleeve is first sleeved on the outer wall of the pressure source interface, and then the fastening screw is used to screw it into the connecting screw hole and make it close to the outer wall of the pressure source interface, so that the entire connecting sleeve is firmly fixed and installed on the interface of the pressure source, and then the insertion rod provided on the inner wall of the second sleeve is horizontally inserted into the slot provided on the inner wall of the connecting sleeve, so that the magnetic suction sheets on the inner walls of the two are tightly adsorbed together, thereby realizing the connection between the tube body port and the pressure source interface. When a new pressure source needs to be connected, the fastening screw can be loosened first, and the connecting sleeve can be removed from the interface of the pressure source, and then opposite pulling forces can be applied to the connecting sleeve and the second sleeve, so that the insertion rod is separated from the inside of the slot, and the connecting sleeve is re-sleeved on the new pressure source interface, and the above-mentioned connection steps are repeated to complete the rapid installation and disassembly between the tube body port and the pressure source interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the seal structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the connecting sleeve of the utility model.

[0018] In the figure: 1. clamping mechanism; 101. turning handle; 102. rotating screw; 103. clamping ring; 104. silicone cushion; 2. first sleeve; 3. tube body; 301. elastic cushion; 4. second sleeve; 5. insertion rod; 6. slot; 7. connecting sleeve; 701. connecting screw hole; 8. sealing element; 801. rubber ring; 802. metal gasket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4The utility model provides a technical solution: a connecting pipe with a joint quick-release structure, including a clamping mechanism 1, the clamping mechanism 1 horizontally runs through the left and right sides of a first sleeve 2, the tail of the first sleeve 2 is sleeved on the outer wall of one end of a tube body 3, the outer wall of the other end of the tube body 3 is sleeved with a second sleeve 4, a plurality of plug rods 5 are distributed in an annular manner on the inner wall of the second sleeve 4, the top end of the plug rod 5 is inserted into the inside of a slot 6, the tail end of the slot 6 is welded to the inner wall of a connecting sleeve 7, and a sealing member 8 is provided on the outer wall of the end of the tube body 3 located at the second sleeve 4.

[0021] In this embodiment, Figure 1 and Figure 2 As shown, the clamping mechanism 1 is composed of a turning handle 101, a rotating screw 102, a clamping ring 103 and a silicone cushion 104, wherein the turning handle 101 is arranged at one end of the rotating screw 102, the clamping ring 103 is arranged at the other end of the rotating screw 102, the outer wall of the rotating screw 102 is threadedly connected to the left and right inner walls of the first sleeve 2, and the silicone cushion 104 is arranged on the opposite side of the clamping ring 103; it should be noted that the tube body 3 on one side of the clamping mechanism 1 can be connected to the measured object, because the connection port at the measured object needs to be designed according to the type and actual size of the measured object, for measured objects of different sizes, their interfaces need to be connected using tube ports of appropriate sizes to ensure the reliability and sealing of the connection, so in the utility model A clamping mechanism 1 with an automatically changeable caliber is provided at the first sleeve 2. When one end of the tube body 3 is connected to the interface of the test piece, the operator can manually turn the handle 101 to drive the rotating screw 102 to move toward the inside along the internal thread of the first sleeve 2, thereby driving the clamping ring 103 provided at the other end of the rotating screw 102 to approach the interface of the test piece until the silicone pad 104 provided on the opposite side of the clamping ring 103 can fit tightly against the outer wall of the interface, thereby firmly fixing the interface position of the test piece, completing the connection operation between it and the tube body 3, and preventing the interface from falling off during the pressure test, effectively avoiding affecting the experimental process due to the falling off of the interface, and at the same time ensuring the personal safety of the operator.

[0022] In this embodiment, Figure 1 and Figure 2As shown, an elastic cushion 301 is provided on the inner wall of the tube body 3 close to the first sleeve 2. It should be noted that, in actual use, when the tube body 3 is connected to the interface of the device under test, the actual size and dimensions of the interface of the device under test should be taken into consideration, so it is often necessary to design multiple adapters, which increases the complexity of actual operation and increases the cost. Therefore, in the present invention, a clamping mechanism 1 and an elastic cushion 301 that can adapt to the size of the interface of the device under test are designed. The operator can first bring the first sleeve 2 and the port of the tube body 3 close to the interface of the device under test, and insert the interface into the tube body 3 laterally. The inner wall, at the same time, the outer wall of the interface will contact the elastic cushion 301 and squeeze the elastic cushion 301 outward, so that the internal space of the port of the tube body 3 can just accommodate the interface to be inserted therein, and when the operator uses the clamping mechanism 1 to fix the position of the interface, the elastic cushion 301 will push toward the outer wall of the interface due to its own rebound property, and then achieve reverse clamping, so as to adapt to interfaces of different sizes. At the same time, the deformable nature of the elastic cushion 301 can fit tightly against the outer wall of the interface, thereby enhancing the sealing performance between the inner wall of the tube body 3 and the outer wall of the interface.

[0023] In this embodiment, Figure 3 and Figure 4 As shown, the top of the insertion rod 5 and the inner wall of the slot 6 are provided with magnetic sheets; it should be noted that in actual use, the tube body 3 and the pressure source interface need to have the function of quick connection and disassembly to facilitate the replacement and maintenance of the pressure source. Therefore, in the utility model, the inner wall of the second sleeve 4 and the inner wall of the connecting sleeve 7 are respectively provided with the insertion rod 5 and the slot 6. In specific operation, it is necessary to first sleeve the connecting sleeve 7 on the outer wall of the interface of the pressure source, and then bring the second sleeve 4 and the port of the tube body 3 close to the interface of the pressure source, and make the insertion rod 5 provided on the inner wall of the second sleeve 4 horizontally inserted into the slot 6 provided on the inner wall of the connecting sleeve 7. At the same time, the magnetic sheets provided on the insertion rod 5 and the inner wall of the slot 6 The pieces, due to their different magnetic properties, will be tightly adsorbed together, thereby forming an adsorption connection between the insertion rod 5 and the slot 6, thereby realizing the connection operation between the port of the tube body 3 and the pressure source interface. At the same time, when the two need to be disassembled, the operator only needs to release the position limit between the connecting sleeve 7 and the pressure source interface to replace or maintain the pressure source. At the same time, when a new pressure source needs to be connected, opposite pulling forces can be applied to the connecting sleeve 7 and the second sleeve 4 first, so that the insertion rod 5 is separated from the inside of the slot 6, and then the connecting sleeve 7 is re-set on the new pressure source interface, and the above-mentioned connection steps are repeated to complete the quick connection and disassembly between the port of the tube body 3 and the pressure source interface.

[0024] In this embodiment, Figure 3As shown, the outer ring of the sealing member 8 is a rubber ring 801, and the inner ring is a metal gasket 802. It should be noted that in practical applications, the connection between the port of the tube body 3 and the interface of the pressure source needs to be able to withstand high pressure and ensure good sealing performance to prevent pressure leakage. Therefore, in the utility model, a sealing member 8 is provided on the inner wall of the second sleeve 4, and the sealing member 8 is configured in the form of an outer ring of a rubber ring 801 and an inner ring of a metal gasket 802. A metal gasket 802 is sleeved on the inner ring of the rubber ring 801, which can effectively improve the overall sealing performance of the sealing member 8, and the metal gasket 802 can also It can provide better support and compression for the rubber ring 801, thereby effectively preventing the rubber ring 801 from being over-compressed or damaged, and extending the service life of the rubber ring 801. When the port of the tube body 3 and the interface of the pressure source are plugged into each other, the interface end will squeeze the entire seal 8 inward, so that the rubber ring 801 and the metal gasket 802 are deformed at the same time, and fill the gap between the interface and the pipe mouth, thereby realizing a sealed connection between the interface and the pipe mouth of the tube body 3, and effectively preventing pressure leakage during the experiment, thereby enhancing the safety of the entire experimental process and the stability of equipment operation.

[0025] In this embodiment, Figure 4 As shown, the outer wall of the connecting sleeve 7 is provided with a plurality of connecting screw holes 701 in an annular manner; it should be noted that, in actual applications, a quick connection and disassembly structure is required between the interface of the pressure source and the port of the tube body 3, so as to facilitate timely maintenance and replacement of the pressure source. Therefore, a separate connecting sleeve 7 is designed in the utility model, which can be disassembled or installed at different pressure source interfaces at any time, and is plugged with the second sleeve 4 to form a connected whole. The main installation method is to first sleeve the connecting sleeve 7 on the outer wall of the pressure source interface, and then use the fastening screw to screw it into the connecting screw hole 701 opened on the outer wall of the connecting sleeve 7, and make the top of the fastening screw fit tightly against the outer wall of the pressure source interface, so that the entire connecting sleeve 7 is firmly fixed and installed at the interface of the pressure source. When it needs to be disassembled, it is only necessary to manually unscrew the fastening screw out of the connecting screw hole 701 to remove the connecting sleeve 7 from the interface of the pressure source. The installation and disassembly methods are very simple, saving time and effort.

[0026] The use method and advantages of the utility model: When the connecting pipe with a quick-release joint structure is used, the working process is as follows:

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, first, the connecting sleeve 7 is sleeved on the outer wall of the interface of the pressure source, and the fastening screw is used to screw it into the inside of the connecting screw hole 701, and finally tightly fits on the outer wall of the interface, so that the connecting sleeve 7 is fixedly installed on the interface of the pressure source, and then the second sleeve 4 and the pipe opening of the tube body 3 are brought close to the interface of the pressure source, and the insertion rod 5 provided on the second sleeve 4 can be horizontally inserted into the slot 6 provided on the inner wall of the connecting sleeve 7, so that the magnetic suction sheet provided on the contact surface of the slot 6 and the insertion rod 5 can be adsorbed together, and at the same time , the interface end of the pressure source will press the sealing member 8 inward, so that it deforms to fill the gap between the interface and the pipe mouth, and complete the sealing connection between the two. After that, the operator can plug the first sleeve 2 and the pipe body 3 port here with the interface of the measured object. The specific operation is to first insert the interface of the measured object into the pipe mouth of the pipe body 3 horizontally, so that the outer wall of the interface can push the elastic cushion 301 outward. After the interface is completely inserted into the pipe body 3, the elastic cushion 301 will push back through its rebound property. The interface is squeezed and fits tightly to its outer wall, thereby completing the sealed connection of the interface of the measured object. At the same time, the operator can manually rotate the handle 101 to make the rotating screw 102 drive the clamp ring 103 close to the interface, until the silicone pad 104 on the opposite side of the clamp ring 103 can fit tightly to the outer wall of the interface, thereby completing the position fixation of the interface of the measured object. When the entire connecting pipe needs to be disassembled, it is only necessary to reversely rotate the handle 101 to drive the clamp ring 103 and the silicone pad 104 to separate from the outer wall of the interface of the measured object. , and apply force in the opposite direction to the tube body 3, so that the interface inserted into it is disengaged outward, and the disassembly between the tested piece and the connecting pipe can be completed. When a new pressure source needs to be replaced or repaired, it is only necessary to manually loosen the fastening screws and remove the connecting sleeve 7 from the pressure source interface, and then apply force in the opposite direction to the connecting sleeve 7 and the second sleeve 4, so that the insertion rod 5 provided on the inner wall of the second sleeve 4 is disengaged from the slot 6 provided on the inner wall of the connecting sleeve 7, thereby completing the rapid disassembly between the pressure source and the connecting pipe.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A connecting pipe with a quick-release joint structure, comprising a clamping mechanism (1), characterized in that: The clamping mechanism (1) runs transversely through the left and right sides of the first sleeve (2); the tail of the first sleeve (2) is sleeved on the outer wall of one end of the tube body (3); the outer wall of the other end of the tube body (3) is sleeved with a second sleeve (4); a plurality of insertion rods (5) are distributed in an annular manner on the inner wall of the second sleeve (4); the top end of the insertion rod (5) is inserted into the inside of the slot (6); the tail end of the slot (6) is welded to the inner wall of the connecting sleeve (7); and a sealing member (8) is provided on the outer wall of the end of the tube body (3) located at the second sleeve (4).

2. The connecting pipe with a quick-release joint structure according to claim 1, characterized in that: The clamping mechanism (1) is composed of a turning handle (101), a rotating screw (102), a clamping ring (103) and a silicone pad (104), wherein the turning handle (101) is arranged at one end of the rotating screw (102), the clamping ring (103) is arranged at the other end of the rotating screw (102), the outer wall of the rotating screw (102) is threadedly connected to the inner walls of the left and right sides of the first sleeve (2), and the silicone pad (104) is arranged on the opposite side of the clamping ring (103).

3. The connecting pipe with a quick-release joint structure according to claim 1, characterized in that: An elastic cushion (301) is provided on the inner wall of one side of the tube body (3) close to the first sleeve (2).

4. The connecting pipe with a quick-release joint structure according to claim 1, characterized in that: The top end of the insertion rod (5) and the inner wall of the slot (6) are both provided with magnetic attraction sheets.

5. The connecting pipe with a quick-release joint structure according to claim 1, characterized in that: The outer ring of the sealing member (8) is a rubber ring (801), and the inner ring is a metal gasket (802).

6. The connecting pipe with a quick-release joint structure according to claim 1, characterized in that: The outer wall of the connecting sleeve (7) is provided with a plurality of connecting screw holes (701) in an annular shape.

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