Limiting device for hydraulic pipeline joint of airplane

Abstract

The utility model discloses an airplane hydraulic pipeline joint limiting device which comprises a first main body and a second main body, the first main body is attached to the second main body, and a fixing hole used for fixing a crimping pipe is formed in the attaching face of the first main body and the second main body; one end of the first main body is connected with one end of the second main body through a shaft, the other end of the first main body is connected with the other end of the second main body through a stud, the shaft and the stud are located on the two sides of a binding face, and the stud penetrates through the binding face of the first main body and the binding face of the second main body. When a pipe joint is crimped, one end of the device is limited, the pipe joint is jacked onto the device, and the other end of the pipe joint is crimped, so that the device can prevent the inaccurate crimping position caused by the movement of the pipe joint, and the working quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft hydraulic pipelines, in particular to a limiting device for an aircraft hydraulic pipeline joint. Background Art

[0002] Currently, the connection work of aircraft hydraulic pipelines is carried out according to the manual steps provided by Airbus. However, when performing the pipe joint crimping step, the crimping range of the pipe joint needs to be marked with a black pen. However, when the pipe joint is moved, the hydraulic oil in the pipe will make the mark unclear, making it difficult for workers to make correct judgments. The crimping range needs to be re-marked, which will lead to low efficiency and poor quality in the emergency repair work with tight schedule. Utility Model Content

[0003] In order to better solve the efficiency and quality problems of workers taking over the joints when hydraulic pipelines leak, the utility model provides an aircraft hydraulic pipeline joint limiting device. When crimping the pipe joint, one end is limited, the pipe joint is pushed against the device, and the other end is crimped. This device can prevent the pipe joint from moving and causing inaccurate crimping position, thereby improving work quality and efficiency.

[0004] The technical solutions provided by this utility model are as follows:

[0005] A limiting device for an aircraft hydraulic pipe joint includes a first body and a second body, wherein the first body is bonded to the second body, and a fixing hole for fixing a compression pipe is provided on the bonding surface of the first body and the second body;

[0006] The first body and the second body are connected at one end by a shaft and at the other end by a stud. The shaft and the stud are located on both sides of the fitting surface, and the stud passes through the fitting surface of the first body and the second body.

[0007] Furthermore, the first body and the second body are both semicircular planar structures, a protruding structure is provided on one side of the fitting surface of the second body, a first slot is provided at a position of the first body corresponding to the protruding structure, the protruding structure is inserted into the first slot and connected by the shaft.

[0008] Furthermore, a second slot is provided on the other side of the fitting surface of the second body, and a third slot is provided on the first body at a position corresponding to the second slot, and the stud is inserted into the third slot through the second slot;

[0009] A first mounting hole is provided on the side wall of the third slot, and the fixing nut is provided in the first mounting hole. The fixing nut passes through the third slot and is fixed on the first main body, and a screw hole is provided on the fixing nut at a position corresponding to the third slot, and the stud is adapted to the screw hole.

[0010] Furthermore, the semicircular diameters of the first body and the second body are consistent, and the fixing hole is concentrically arranged with the first body and the second body.

[0011] Furthermore, the second body is provided with notches, and the notches are located on both sides of the protruding structure.

[0012] Furthermore, the protruding structure is an arc-shaped structure, and the arc-shaped structure is concentrically arranged with the second body.

[0013] Furthermore, a second mounting hole is axially provided in the first slot, the shaft is provided in the second mounting hole, the shaft passes through the protruding structure, and both ends of the shaft are flush with both sides of the first body.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. High-precision control

[0016] The crimping position of the pipe joint can be controlled with a small error range, which greatly improves the reliability and quality of the crimping of the pipe joint.

[0017] 2. Adaptability and adjustment of hydraulic pipelines of different sizes

[0018] The size of the limit device can be adjusted according to the hydraulic pipelines of different specifications and sizes, thereby improving the versatility and flexibility.

[0019] 3. Improve production efficiency

[0020] Due to its precise control of the crimping position, the scrap rate and rework times during the crimping process are reduced, significantly improving production efficiency.

[0021] 4. Enhanced security

[0022] Ensuring the crimping quality of hydraulic pipe joints reduces the risk of non-compliance with manual requirements due to joint movement, thereby enhancing aircraft flight safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a limit device for an aircraft hydraulic pipe joint in an embodiment of the present utility model;

[0024] Figure 2 An exploded view of a limiting device for an aircraft hydraulic pipe joint according to an embodiment of the present invention.

[0025] The reference numerals are as follows:

[0026] 1-first body, 101-first mounting hole, 102-first slot, 103-second mounting hole, 2-second body, 201-second slot, 202-raised structure, 3-stud, 4-fixing nut, 401-screw hole, 5-fixing hole, 6-axis, 7-notch. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the embodiments described below are part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the detailed description of the embodiments of the present application provided below in conjunction with the accompanying drawings is intended to represent only selected embodiments of the present application and is not intended to limit the scope of protection claimed in the present application. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present application without making any creative efforts shall fall within the scope of protection claimed in the present application.

[0029] It should be understood that in the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two elements or an interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] Figure 1 The device shows a hydraulic pipe joint limiter for aircraft, comprising a first body 1 and a second body 2. The first body 1 and the second body 2 are bonded together, with fixing holes 5 for securing a compression pipe provided on the bonding surface of the first and second bodies 1 and 2. The first and second bodies 1 and 2 are connected at one end by a shaft 6 and at the other end by a stud 3. The shaft 6 and the stud 3 are located on either side of the bonding surface, and the stud 3 extends through the bonding surface of the first and second bodies 1 and 2.

[0032] The crimping tubes described here are used in aircraft hydraulic lines. During crimping of the pipe joints, this device limits one end and allows the other end to be crimped. This prevents movement of the pipe joints, which can lead to inaccurate crimping positions, improving work quality and efficiency. The first and second bodies 1 and 2 can be made of aluminum alloy, ensuring strength and rigidity without scratching the hydraulic lines. Based on actual operating conditions, the device can be designed to be as small as possible while maintaining operational strength, ensuring suitability in even the most confined environments.

[0033] like Figure 2 As shown, the first body 1 and the second body 2 are both semicircular planar structures. A protruding structure 202 is provided on one side of the fitting surface of the second body 2. A first slot 102 is provided at the position of the first body 1 corresponding to the protruding structure 202. The protruding structure 202 is inserted into the first slot 102 and connected by the shaft 6.

[0034] Optionally, a second slot 201 is provided on the other side of the fitting surface of the second body 2 , and a third slot is provided on the first body 1 at a position corresponding to the second slot 201 , and the stud 3 is inserted into the third slot from the second slot 201 .

[0035] A first mounting hole 101 is provided on the side wall of the third slot, a fixing nut 4 is provided in the first mounting hole 101, the fixing nut 4 passes through the third slot and is fixed on the first main body 1, and a screw hole 401 is provided on the fixing nut 4 at a position corresponding to the third slot, and the stud 3 is adapted to the screw hole 401.

[0036] The fixing nut 4 is made of copper and is inserted into the first body 1 through the first mounting hole 101. A hole is drilled and tapped in the middle of the nut to securely engage the stud 3. Since the first and second bodies 1 and 2 are connected at one end, the other end can be opened and closed. By tightening or loosening the stud 3 and fixing nut 4, the opening and closing range of the other ends of the first and second bodies 1 and 2 can be adjusted, allowing the fixing hole 5 to clamp a variety of compression fittings of different diameters.

[0037] Optionally, the semicircular diameters of the first body 1 and the second body 2 are consistent, and the fixing hole 5 is concentrically arranged with the first body 1 and the second body 2 .

[0038] Optionally, the second body 2 is provided with notches 7 , which are located on both sides of the protruding structure 202 .

[0039] Optionally, the protruding structure 202 is an arc-shaped structure, and the arc-shaped structure is concentrically arranged with the second body 2 .

[0040] Optionally, a second mounting hole 103 is provided in the first slot 102 along the axis 6 , the axis 6 is provided in the second mounting hole 103 , the axis 6 passes through the protruding structure 202 , and both ends of the axis 6 are flush with both sides of the first body 1 .

[0041] When the aircraft hydraulic pipe joint limiting device provided by the utility model is used, the stud 3 and the fixing nut 4 are appropriately adjusted according to the size of the compression pipe joint, so that the compression pipe joint can smoothly pass through the fixing hole 5, and then the adjusting stud 3 and the fixing nut 4 are tightened to fix them, thereby limiting one end of the compression pipe joint and crimping the other end.

[0042] Aircraft hydraulic systems play a vital role in modern aviation, and the reliability of hydraulic pipe joints is directly related to the performance of the entire system and flight safety. The aircraft hydraulic pipe joint limiter provided by this utility model is a key component for ensuring the quality of hydraulic pipe joint crimping. Its advanced features are of great significance for improving aircraft reliability and safety.

[0043] The aircraft hydraulic pipe joint limiting device provided by the utility model has the following characteristics and advantages:

[0044] 1. High-precision control

[0045] The crimping position of the pipe joint can be controlled with a small error range, which greatly improves the reliability and quality of the crimping of the pipe joint.

[0046] 2. Adaptability and adjustment of hydraulic pipelines of different sizes

[0047] The size of the limit device can be adjusted according to the hydraulic pipelines of different specifications and sizes, thereby improving the versatility and flexibility.

[0048] 3. Improve production efficiency

[0049] Due to its precise control of the crimping position, the scrap rate and rework times during the crimping process are reduced, significantly improving production efficiency.

[0050] 4. Enhanced security

[0051] Ensuring the crimping quality of hydraulic pipe joints reduces the risk of non-compliance with manual requirements due to joint movement, thereby enhancing aircraft flight safety.

[0052] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A limit device for an aircraft hydraulic pipe joint, characterized by: The device comprises a first body and a second body, wherein the first body is fitted with the second body, and a fixing hole for fixing a compression tube is provided on the fitting surfaces of the first body and the second body; The first body and the second body are connected at one end by a shaft and at the other end by a stud. The shaft and the stud are located on both sides of the fitting surface, and the stud passes through the fitting surface of the first body and the second body.

2. The aircraft hydraulic pipe joint limiting device according to claim 1, characterized in that: The first body and the second body are both semicircular planar structures. A protruding structure is provided on one side of the fitting surface of the second body. A first slot is provided at a position of the first body corresponding to the protruding structure. The protruding structure is inserted into the first slot and connected by the shaft.

3. The aircraft hydraulic pipe joint limiting device according to claim 2, characterized in that: A second slot is provided on the other side of the fitting surface of the second body, and a third slot is provided on the first body at a position corresponding to the second slot, and the stud is inserted into the third slot through the second slot; A first mounting hole is provided on the side wall of the third slot, a fixing nut is provided in the first mounting hole, the fixing nut passes through the third slot and is fixed on the first main body, and a screw hole is provided on the fixing nut at a position corresponding to the third slot, and the stud is adapted to the screw hole.

4. The aircraft hydraulic pipe joint limiting device according to claim 2 or 3, characterized in that: The semicircular diameters of the first body and the second body are consistent, and the fixing hole is concentrically arranged with the first body and the second body.

5. The aircraft hydraulic pipe joint limiting device according to claim 4, characterized in that: The second body is provided with notches, and the notches are located on both sides of the protruding structure.

6. The aircraft hydraulic pipe joint limiting device according to claim 5, characterized in that: The protruding structure is an arc-shaped structure, and the arc-shaped structure is concentrically arranged with the second body.

7. The aircraft hydraulic pipe joint limiting device according to claim 5 or 6, characterized in that: A second mounting hole is axially arranged in the first slot, the shaft is arranged in the second mounting hole, the shaft passes through the protruding structure, and two ends of the shaft are flush with two sides of the first body.

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