Hose buckling and pressing connector and multi-connector hose assembly with adjustable spatial position

Abstract

The utility model discloses a hose buckling and pressing joint and a multi-interface hose assembly with an adjustable spatial position, relates to the technical field of engine fuel delivery hoses, and solves the problems of high assembly difficulty and low mounting efficiency caused by non-adjustable spatial position of a hose buckling and pressing joint of a hose assembly in the prior art. The hose buckling and pressing connector comprises a connector body, the connector body is provided with at least one buckling and pressing port, buckling and pressing outer sleeves are adjustably connected to the buckling and pressing ports through threads, buckling and pressing structures are correspondingly arranged between the buckling and pressing outer sleeves and the buckling and pressing ports, the connector body is provided with external ports, a flow channel is formed in the connector body, and the flow channel is communicated with the buckling and pressing ports and the external ports. The buckling port and the buckling jacket are arranged, so that the buckling port and the buckling jacket can be quickly connected with the hose blank in a buckling manner during use, and the buckling jacket and the buckling port are in threaded adjustable connection, so that the angular position posture of the buckling jacket relative to the buckling port can be finely adjusted after buckling, and the fine adjustment requirement during assembly is met; therefore, the assembling difficulty of the product on the engine is reduced, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine fuel delivery hoses, in particular to a hose crimping joint and a multi-interface hose component with adjustable spatial position. Background Art

[0002] When delivering fuel to the combustion chamber of an aircraft engine, it is usually necessary to deliver it through a multi-interface hose assembly. The multi-interface hose assembly is usually composed of a tube blank and multiple interfaces. It has a certain degree of flexibility and can be circumferentially wrapped around the combustion chamber of the aircraft engine. Each interface is connected to the fuel interface on the engine combustion chamber, thereby providing fuel to the engine combustion chamber during operation.

[0003] When installing a multi-interface hose assembly, due to the influence of the processing accuracy of the engine and the hose assembly, and the small internal space of the engine, as long as there is a deviation in the position of any interface, it may affect the installation of the entire hose assembly.

[0004] Conventional joints cannot be adjusted after being crimped and connected with the hose, resulting in the inability to adjust the spatial position and the relative angle relationship of adjacent joints during use, which increases the difficulty of the assembly process and reduces the assembly efficiency. For example, the Chinese utility model patent with announcement number CN201476063U discloses a combustion chamber fuel main pipe, including a fuel pipe, a three-way pipe joint, an L-shaped pipe joint and an oil inlet pipe joint, characterized in that: the fuel pipe is a polytetrafluoroethylene pipe, and the fuel pipe is successively covered with a wire mesh and a fireproof sleeve; the three-way pipe joint, the L-shaped pipe joint and the oil inlet pipe joint are connected to the fuel pipe with a locking sleeve. Combined with its content, it can be seen that it still has the problem that the angle and posture position of the joint cannot be adjusted after the crimping is completed, resulting in low assembly efficiency. In order to improve the installation efficiency, a hose crimping joint and a multi-interface hose assembly with adjustable spatial position are designed to reduce the difficulty of assembly and improve production efficiency. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a hose crimping joint and a multi-interface hose assembly with adjustable spatial position, which solves the problem of great assembly difficulty and low installation efficiency caused by the non-adjustable angle posture of the hose crimping joint of the hose assembly in the prior art.

[0006] The technical solution of the utility model is achieved as follows: a hose crimping connector, including a connector body, the connector body having at least one crimping port, the crimping ports are all connected to crimping sleeves adjustably via threads, a crimping structure is correspondingly provided between the crimping sleeves and the crimping ports, an external port is provided on the connector body, a flow channel is provided in the connector body, and the flow channel is connected to the crimping port and the external port.

[0007] Preferably, the crimping port comprises a core tube integrally formed with the connector body, an inner hole of the core tube is communicated with the flow channel, and an external threaded section for cooperating with the crimping sleeve is provided on the core tube.

[0008] Preferably, the pressing sleeve is a rotary sleeve, and an internal thread section cooperating with the external thread section is provided on the inner side wall of the pressing sleeve.

[0009] Preferably, the buckling structure comprises an annular groove section arranged on the inner side wall of the buckling sleeve, and the core tube is provided with an annular protrusion section corresponding to the annular groove section.

[0010] Furthermore, a gap for adjustment is provided between the end of the buckling sleeve and the connector body. The end of the core tube is provided with an angle. The connector body is provided with an opening, and the external connection port includes a connecting pipe provided at the opening, and the connecting pipe is connected to the external connector.

[0011] A multi-interface hose assembly with adjustable spatial position includes a plurality of hose blanks, which are connected through the hose crimping connector as described above, wherein a crimping port of one hose crimping connector is connected to a fuel connector through the hose blank.

[0012] Preferably, the hose blank is a polytetrafluoroethylene hose. The fuel connector and the external connector are both hydraulic connectors.

[0013] The beneficial effects of the utility model are as follows: by providing a crimping port and a crimping jacket, the crimping jacket can be quickly crimped and connected to the hose blank during use; by providing a threaded adjustable connection between the crimping jacket and the crimping port, the position and angle of the crimping jacket relative to the crimping port can be fine-tuned after crimping, thereby meeting the fine-tuning requirements during assembly. The crimping connector for hoses that can be threadedly rotated can realize spatial rotation of the interface parts of the multi-interface hose assembly, and adjust the angle, position and attitude between adjacent hose crimping connectors, thereby reducing the difficulty of assembling the product on the engine and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the multi-interface hose assembly of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the hose crimping connector of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connector body of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the buckled jacket of the utility model;

[0019] In the figure: 1: connector body, 2: crimping sleeve, 3: external port, 4: flow channel, 5: core tube, 6: external thread section, 7: internal thread section, 8: annular groove section, 9: annular protrusion section, 10: gap, 11: bevel, 12: opening, 13: connecting pipe, 14: external connector, 15: hose blank, 16: fuel connector, 20: crimping port. DETAILED DESCRIPTION

[0020] 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 technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 , 3 As shown, in embodiment 1, a hose crimping connector includes a connector body 1, and the connector body 1 has at least one crimping port 20. In this embodiment, the hose crimping connector has three specifications: one crimping port 20 is connected to the connector body 1, two crimping ports 20 are connected to the connector body 1, and three crimping ports 20 are connected to the connector body. In this embodiment, the crimping ports 20 are all connected to a crimping sleeve 2 through a threaded adjustable connection, and a crimping structure is correspondingly provided between the crimping sleeve 2 and the crimping port 20. The connector body 1 is provided with an external port 3, and a flow channel 4 is provided in the connector body 1. The flow channel 4 is connected to the crimping port 20 and the external port 3. In this embodiment, the flow channel can make the external port and the crimping port, and the crimping ports communicate with each other.

[0022] When the present embodiment is in use, the crimping sleeve 2 and the crimping port 20 are threadedly connected together before crimping, and then the hose tube blank is inserted between the crimping sleeve and the crimping port, and the end of the hose tube blank corresponds to the crimping structure, and then the crimping machine is set with appropriate crimping parameters, and the section of the crimping sleeve 2 with the crimping structure is extruded radially inward by the crimping machine, so that the hose tube blank is fixed by the crimping structure, and deformation of the threaded connection between the crimping sleeve 2 and the crimping port 20 is avoided during the crimping process to affect the assembly, and effective sealing between the hose tube blank and the crimping joint is achieved.

[0023] Embodiment 2, a hose crimping connector, based on embodiment 1, as Figure 2 ,3 As shown, the crimping port 20 includes a core tube 5 integrally formed with the connector body 1, the inner hole of the core tube 5 is connected to the flow channel 4, and the core tube 5 is provided with an external thread section 6 for matching with the crimping sleeve 2. In this embodiment, a bevel 11 is provided at the end of the core tube 5, and the bevel is provided to facilitate the insertion of the end of the core tube into the inner hole of the hose tube blank during assembly. At the same time, in this embodiment, an annular protrusion is provided in the middle of the core tube, which can improve the sealing of the crimping part, and the external thread section is provided on the annular protrusion, so as to provide a spacing between the crimping sleeve and the core tube to meet the installation of the hose tube blank.

[0024] like Figure 4 As shown, the buckle sleeve 2 is a rotary sleeve, and the inner wall of the buckle sleeve 2 is provided with an internal thread section 7 that cooperates with the external thread section 6. In this embodiment, corresponding to the external thread section of the core tube, an inner ring protrusion is provided in the middle of the inner wall of the buckle sleeve, and the internal thread section is arranged on the inner ring protrusion.

[0025] Embodiment 3, a hose crimping joint, based on embodiment 2, the crimping structure includes an annular groove section 8 arranged on the inner wall of the crimping sleeve 2, and an annular protrusion section 9 corresponding to the annular groove section 8 is arranged on the core tube 5. In this embodiment, the annular groove section 8 includes a plurality of annular grooves distributed axially on the inner wall of the crimping sleeve, and the annular protrusion section includes a plurality of annular protrusions distributed axially on the outer wall of the core tube. During the crimping process, the annular protrusions and the annular grooves squeeze the hose blank from both sides, thereby forming a fastening and sealing of the hose blank.

[0026] In addition, in the present embodiment, a gap 10 for adjustment is provided between the end of the crimping sleeve 2 and the connector body 1. After the crimping is completed, when fine-tuning is performed during the assembly process, the crimping sleeve or the connector body 1 is rotated, and the crimping sleeve will move axially relative to the core tube under the thread cooperation of the external thread section 6 and the internal thread section. The provision of the gap 10 can limit and observe the movement range of the crimping sleeve, thereby avoiding excessive movement that affects the sealing effect or causes the hose blank to fall off.

[0027] As a further optional embodiment, the joint body 1 is provided with an opening 12, the opening 12 is connected to the flow channel 4, and the external port 3 includes a connecting pipe 13 provided at the opening 12, and the connecting pipe 13 is connected to the external joint 14. The connecting pipe can be welded and fixed at the opening 12 or threadedly connected to the opening 12. As a further optional embodiment, the connecting pipe 13 is integrally formed with the joint body.

[0028] As an optional implementation, the connecting tube 13 is rotatably disposed on the opening 12, and the connecting tube 13 is an arc-shaped tube. The rotating connection method can adjust the direction of the connected external joint to meet actual needs.

[0029] Embodiment 4, based on embodiment 3, a multi-interface hose assembly with adjustable spatial position includes a plurality of hose blanks 15, and the hose blanks 15 are connected by hose crimping joints as described in embodiment 1, wherein the crimping port 20 of one hose crimping joint is connected to the fuel joint 16 through the hose blank 15, and the fuel joint is connected to the fuel supply pipeline to supply fuel to the entire multi-interface hose assembly. When the multi-interface hose assembly is assembled on an aircraft engine, it is surrounded in a circle along the combustion chamber, and the external joint 14 is connected to the fuel access end on the engine combustion chamber, so as to realize the uniform supply of fuel to the engine through the multi-joint hose assembly.

[0030] In this embodiment, the hose blank 15 is a polytetrafluoroethylene hose, which has good stability and certain toughness to meet the adjustment requirements. The fuel connector 16 and the external connector 14 are both hydraulic connectors, which are connected by conventional hydraulic connectors to improve the versatility of the hose assembly.

[0031] Specifically, Figure 1 As shown, in this embodiment, one hose crimping connector with three crimping ports, two hose crimping connectors with one crimping port, and several hose crimping connectors with two crimping ports are used. One crimping port of the hose crimping connector with three crimping ports is connected to the fuel connector through a hose blank, and the other two crimping ports are respectively connected to several hose crimping connectors with two crimping ports through a hose blank, and finally connected to a hose crimping connector with one crimping port at the end, thereby forming a multi-interface hose assembly.

[0032] During the product assembly process, the relative rotation between the buckling sleeve and the core tube is used to achieve fine adjustment of the circumferential angle of the external connector 14 used to supply oil to the combustion chamber, thereby reducing the assembly difficulty and parts processing accuracy requirements and improving equipment efficiency.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hose crimping connector, characterized in that: The connector comprises a connector body (1), wherein the connector body (1) has at least one crimping port (20), the crimping ports (20) are each adjustably connected to a crimping sleeve (2) via a thread, a crimping structure is correspondingly provided between the crimping sleeve (2) and the crimping port (20), an external port (3) is provided on the connector body (1), a flow channel (4) is provided in the connector body (1), and the flow channel (4) is in communication with the crimping port (20) and the external port (3).

2. The hose crimping connector according to claim 1, characterized in that: The crimping port (20) comprises a core tube (5) integrally formed with the connector body (1); an inner hole of the core tube (5) is communicated with the flow channel (4); and an external threaded section (6) for cooperating with the crimping sleeve (2) is provided on the core tube (5).

3. The hose crimping connector according to claim 2, characterized in that: The buckling sleeve (2) is a rotary sleeve, and an internal thread section (7) cooperating with the external thread section (6) is provided on the inner side wall of the buckling sleeve (2).

4. The hose crimping connector according to claim 3, characterized in that: The buckling structure comprises an annular groove section (8) arranged on the inner side wall of the buckling sleeve (2), and the core tube (5) is provided with an annular protrusion section (9) corresponding to the annular groove section (8).

5. The hose crimping connector according to any one of claims 2 to 4, characterized in that: A gap (10) for adjustment is provided between the end of the crimping sleeve (2) and the joint body (1).

6. The hose crimping connector according to claim 5, characterized in that: The end of the core tube (5) is provided with a bevel (11).

7. The hose crimping connector according to claim 6, characterized in that: The joint body (1) is provided with an opening (12), and the external connection port (3) comprises a connecting pipe (13) provided at the opening (12), and the connecting pipe (13) is connected to the external connection joint (14).

8. A multi-interface hose assembly with adjustable spatial position, characterized in that: The invention comprises a plurality of hose blanks (15), wherein the hose blanks (15) are connected to each other via a hose crimping joint as claimed in any one of claims 1 to 7, wherein a crimping port (20) of one hose crimping joint is connected to a fuel joint (16) via the hose blank (15).

9. The multi-connector hose assembly with adjustable spatial position according to claim 8, characterized in that: The hose blank (15) is a polytetrafluoroethylene hose.

10. The multi-connector hose assembly with adjustable spatial position according to claim 9, characterized in that: The fuel connector (16) and the external connector (14) are both hydraulic connectors.

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