Pipeline positioning device

Abstract

The utility model belongs to the technical field of aircraft assembling and manufacturing, and discloses a pipeline positioning device. The pipeline positioning device is used for pre-positioning a pipeline and specifically comprises a positioning base body and a pipe opening installation assembly, the pipeline comprises a first pipe section and a second pipe section, the axes of the first pipe section and the second pipe section form a preset angle, the pipe opening installation assembly comprises a first sleeve and a second sleeve, the axes of the first sleeve and the second sleeve form a preset angle, and the first sleeve can be coaxially connected with the first pipe section. And the second sleeve can be coaxially connected with the second pipe section. According to the device, the pre-positioning of the pipeline is realized, and the relative positions of the first pipe section and the second pipe section of the pipeline pre-positioned by the device are matched with the vacuum generator, so that even if the vacuum generator is in a lack of installation state, the pipeline can still simulate the state when the pipeline is assembled with the vacuum generator, and the displacement is avoided; the installation coaxiality and stability of the follow-up pipeline and the vacuum generator during actual installation are improved, and the assembly precision and the assembly efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aircraft assembly manufacturing technical field especially relates to a pipeline positioning device. BACKGROUND

[0002] The main function of the civil aircraft wastewater system is to collect and store the wastewater generated by the passengers during the flight, and can discharge the wastewater to the outside of the aircraft on the ground. It has an interface relationship with the kitchen, washroom, etc. It is mainly composed of a wastewater pipeline, a vacuum generator, a wastewater tank and other parts. The wastewater pipeline forms a certain pressure difference through the vacuum generator to suck the wastewater in the kitchen and washroom into the wastewater tank. Due to the effects of various complex loads such as internal thermal stress and mechanical stress of the aircraft, aircraft acceleration, and body vibration and deformation, the wastewater pipeline is prone to large structural deformation, which may cause assembly displacement between the wastewater pipeline and the vacuum generator, resulting in reduced sealing of the wastewater pipeline. Therefore, the installation precision of the wastewater pipeline and the vacuum generator is very important.

[0003] The vacuum generator is generally located in the wastewater tank, and the wastewater pipeline is composed of multiple pipeline sections. To ensure the installation coaxiality of the wastewater pipeline and the vacuum generator, a flexible first connecting piece is usually used to sleeve the front pipeline section into the pipeline roll wave of the vacuum generator, and then the remaining pipeline sections are connected. Finally, the rear pipeline section is installed with the terminal device. However, due to the large size of the vacuum generator and its location in the front part of the wastewater tank, it may cause difficulties in installing other equipment in the wastewater tank. The prior art usually selects to connect multiple pipeline sections first, and then install them in sequence with the vacuum generator and the terminal device. However, this method causes the vacuum generator to be in a missing state when connecting multiple pipeline sections, and multiple pipeline sections may rotate or deviate axially without actual constraints, which may further cause subsequent precise installation with the vacuum generator. SUMMARY

[0004] The utility model aims at providing a pipeline positioning device, which can improve the assembly precision and efficiency of the pipeline.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A pipeline positioning device for pre-positioning a pipeline, the pipeline comprising a first pipeline section and a second pipeline section with a preset angle of the axis, the pipeline positioning device comprising:

[0007] A positioning base body, which is detachably arranged on the aircraft body;

[0008] A pipe mounting assembly is arranged on the positioning base and can be connected with the pipeline, the pipe mounting assembly comprises a first sleeve and a second sleeve, an axis of the first sleeve and an axis of the second sleeve form the preset angle, the first sleeve can be coaxially connected with the first pipe segment, and the second sleeve can be coaxially connected with the second pipe segment.

[0009] As preferred, the pipeline positioning device further comprises a structure support which is detachably arranged on the aircraft body, and the positioning base is detachably connected with the structure support.

[0010] As preferred, the structure support is provided with a positioning reference surface, when the positioning base is connected with the structure support, the positioning base is arranged in abutment with the positioning reference surface, and the axis of the first sleeve or the axis of the second sleeve is arranged in parallel with the positioning reference surface.

[0011] As preferred, the pipeline positioning device further comprises a first connecting piece, the first sleeve is provided with a first connecting hole, the positioning base is correspondingly provided with a second connecting hole, and the first connecting piece can pass through the first connecting hole and the second connecting hole so as to connect the first sleeve with the positioning base.

[0012] As preferred, the positioning base is provided with a connecting protrusion, and the second sleeve can be sleeved on the connecting protrusion to realize the connection with the positioning base.

[0013] As preferred, the first sleeve is provided with a boss, when the pipeline is connected with the pipe mounting assembly, the boss can abut against the inner wall of the first pipe segment; and / or, the second sleeve is provided with the boss, when the pipeline is connected with the pipe mounting assembly, the boss can abut against the inner wall of the second pipe segment.

[0014] As preferred, the pipeline positioning device further comprises a fastener, and the first pipe segment and the second pipe segment are respectively connected with the first sleeve and the second sleeve through the fastener.

[0015] As preferred, the first pipe segment and the second pipe segment are respectively sleeved outside the first sleeve and the second sleeve, and the fastener comprises an annular clamp which can be sleeved outside the first pipe segment and the second pipe segment so that the first pipe segment and the first sleeve, and the second pipe segment and the second sleeve are tightly connected.

[0016] As preferred, the positioning base is provided with a weight-reducing hole.

[0017] As preferred, the pipeline positioning device is further provided with an auxiliary positioning member, which is detachably connected with the first pipe segment and the second pipe segment when the pipeline is connected with the pipe mouth mounting assembly.

[0018] The utility model discloses the beneficial effect of:

[0019] The utility model provides a pipeline positioning device for prepositioning pipeline, and the pipeline positioning device specifically includes positioning base body and pipe mouth mounting assembly, and the positioning base body is detachably installed on the aircraft body, and the pipe mouth mounting assembly is arranged on the positioning base body and can be connected with the pipeline, specifically, the pipeline includes the first pipe segment and the second pipe segment with the axis being at the preset angle, and the pipe mouth mounting assembly includes the first sleeve pipe and the second sleeve pipe with the axis being at the preset angle, the first sleeve pipe can be coaxially connected with the first pipe segment, and the second sleeve pipe can be coaxially connected with the second pipe segment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the assembly drawing of the positioning base body and the pipe mouth mounting assembly of the utility model;

[0021] Fig. 2 It is the structural drawing of the positioning base body of the utility model;

[0022] Fig. 3 It is the structural drawing of the first sleeve pipe of the utility model;

[0023] Fig. 4 It is the overall assembly drawing of the pipeline positioning device and the pipeline of the utility model.

[0024] In the drawing:

[0025] 1, positioning base body, 11, second connecting hole, 12, connecting protrusion, 13, lightening hole, 2, pipe mouth mounting assembly, 21, first sleeve pipe, 211, first connecting hole, 22, second sleeve pipe, 23, boss, 3, structure support, 31, positioning reference surface, 4, first connecting piece, 5, fastener, 6, second connecting piece, 7, auxiliary positioning member, 10, pipeline, 101, first pipe segment, 102, second pipe segment. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0027] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0030] The utility model provides a pipeline positioning device for prepositioning pipeline 10. The pipeline positioning device specifically comprises a positioning base body 1 and a pipe mouth mounting assembly 2. The positioning base body 1 is detachably arranged on the aircraft body, and the pipe mouth mounting assembly 2 is detachably arranged on the positioning base body 1 and can be connected with the pipeline 10. Specifically, the pipeline 10 comprises a first pipe segment 101 and a second pipe segment 102 with a preset angle of the axis, and the pipe mouth mounting assembly 2 comprises a first sleeve 21 and a second sleeve 22 with a preset angle of the axis. The first sleeve 21 can be coaxially connected with the first pipe segment 101, and the second sleeve 22 can be coaxially connected with the second pipe segment 102. The device can realize the prepositioning of the pipeline 10, that is, the installation position of the pipeline 10 is determined in advance. The relative position of the first pipe segment 101 and the second pipe segment 102 of the prepositioned pipeline is adapted to the vacuum generator. Even if the vacuum generator is in a missing state, the pipeline 10 can still simulate the state when it is assembled with the vacuum generator, and rotation or displacement does not occur. The installation coaxiality and stability during the actual installation of the subsequent pipeline 10 and the vacuum generator are improved, and the assembly precision and assembly efficiency are improved.

[0031] Before the pipeline 10 is installed, the positioning base body 1 with the pipe mouth mounting assembly 2 is first installed on the aircraft body, and then the first pipe segment 101 and the second pipe segment 102 are connected in sequence on the first sleeve 21 and the second sleeve 22, and the remaining part of the pipeline 10 is connected. After the entire pipeline 10 is prepositioned, the relative position of the first pipe segment 101 and the second pipe segment 102 is certain, and is adapted to the vacuum generator. After the pipeline positioning device is removed from the aircraft body, the vacuum generator can be assembled with the pipeline 10 that has been prepositioned. Not only is the efficiency improved during the actual installation, but the on-site workload is reduced and the construction progress is accelerated. At the same time, during the prepositioning process, the pipeline 10 is connected and formed in a constrained environment, ensuring the coaxiality and stability of the installation of the pipeline 10 and the vacuum generator, ensuring the air tightness of the pipeline 10, avoiding rework after the pipeline 10 and the vacuum generator are installed, causing delays in production progress and increasing production costs.

[0032] Reference Figs. 1 to 4 The first sleeve 21 and the second sleeve 22 are detachably connected with the positioning base body 1. When the first sleeve 21 and / or the second sleeve 22 are worn out or even damaged after long-term use, the staff can disassemble them for maintenance or replace new first sleeves 21 and / or second sleeves 22, reducing the maintenance time and not needing the entire pipeline positioning device, reducing the production cost. In addition, the applicability of the pipeline positioning device is also improved. When different inner diameters of the pipeline 10 are to be connected, the coaxial connection can be realized by replacing the first sleeves 21 and / or the second sleeves 22 with different outer diameters.

[0033] The first sleeve 21 is connected with the positioning base 1 through the first connecting piece 4. The first sleeve 21 is provided with a first connecting hole 211, and the positioning base 1 is provided with a second connecting hole 11. The first connecting piece 4 can pass through the first connecting hole 211 and the second connecting hole 11, so that the first sleeve 21 is connected with the positioning base 1. Specifically, the first sleeve 21 adopts a hollow cylinder, and the hollow cylinder has at least one end face. The first connecting hole 211 is arranged on the end face of the hollow cylinder. Therefore, the end face of the first sleeve 21 provided with the first connecting hole 211 is attached to the positioning base 1. The first connecting piece 4 passes through the end faces of the positioning base 1 and the first sleeve 21, so that the positioning base 1 and the first sleeve 21 are connected. The end of the first sleeve 21 away from the positioning base 1 can be connected with the first pipe section 101. When the first sleeve 21 is replaced, the worker can disassemble the first sleeve 21 for maintenance or replace a new first sleeve 21 by unscrewing the first connecting piece 4. When the first pipe section 101 with different inner diameters is to be connected, the first sleeve 21 with different outer diameters can be replaced, so that the first pipe section 101 of the pipeline 10 can still be sleeved outside the first sleeve 21, and coaxial connection is realized. It can be understood that the first connecting hole 211 on the end face of the first sleeve 21 with different outer diameters is in the same position, so that the first sleeve 21 with different outer diameters can be connected with the positioning base 1 through the first connecting piece 4.

[0034] The second sleeve 22 is connected with the positioning base 1 through the connecting protrusion 12. The positioning base 1 is provided with the connecting protrusion 12, and the second sleeve 22 can be sleeved on the connecting protrusion 12 to realize connection with the positioning base 1. Specifically, the second sleeve 22 adopts a cylinder with an opening arranged at an end. The opening is connected with the connecting protrusion 12 through interference fit, so that the positioning base 1 and the second sleeve 22 are connected. The end of the second sleeve 22 away from the positioning base 1 can be connected with the second pipe section 102. When the second sleeve 22 is replaced, the worker can disassemble the second sleeve 22 from the positioning base 1 through a puller. After disassembly, the second sleeve 22 is maintained or replaced with a new second sleeve 22. When the second pipe section 102 with different inner diameters is to be connected, the second sleeve 22 with different outer diameters can be replaced, so that the second pipe section 102 of the pipeline 10 can still be sleeved outside the second sleeve 22, and coaxial connection is realized. It can be understood that the opening at the end of the second sleeve 22 with different outer diameters is in the same size, so that the second sleeve 22 with different outer diameters can be connected with the positioning base 1 through the connecting protrusion 12.

[0035] The first sleeve 21 is provided with a boss 23, which can abut against the inner wall of the first pipe section 101 when the pipeline 10 is connected with the pipe mouth mounting assembly 2; and / or the second sleeve 22 is provided with a boss 23, which can abut against the inner wall of the second pipe section 102 when the pipeline 10 is connected with the pipe mouth mounting assembly 2. Preferably, in the embodiment, the first sleeve 21 and the second sleeve 22 are both provided with the boss 23, which improves the assembly stability when the pipeline 10 is connected with the pipe mouth mounting assembly 2, and the boss 23 can also form a better sealing contact to improve the sealing performance of the pipeline 10.

[0036] To further ensure the connection stability and precision of the pipe mouth mounting assembly 2 and the pipeline 10, the pipeline positioning device further comprises a fastener 5, which can tightly connect the first pipe section 101 and the second pipe section 102 with the first sleeve 21 and the second sleeve 22 respectively. Specifically, the fastener 5 can be an annular clamp, which can be arranged outside the first pipe section 101 and the second pipe section 102 after the first pipe section 101 and the second pipe section 102 are arranged outside the first sleeve 21 and the second sleeve 22 respectively, so that the first pipe section 101 is tightly connected with the first sleeve 21 and the second pipe section 102 is tightly connected with the second sleeve 22.

[0037] In addition, the first sleeve 21 and the second sleeve 22 are both made of a high-hardness elastic material, which has high elasticity and compressibility. The high-hardness material can ensure the accuracy of positioning the first pipe section 101 and the second pipe section 102, and the elastic material can facilitate the first pipe section 101 and the second pipe section 102 to be smoothly arranged on the first sleeve 21 and the second sleeve 22 respectively, which is better than rigid materials in operation.

[0038] The pipeline positioning device further comprises a structural support 3, which is detachably arranged on the aircraft body, and the positioning base 1 is detachably arranged on the structural support 3. The structural support 3 can provide a mounting reference for the positioning base 1 to ensure the precise assembly of the pipeline 10. Specifically, before the pipeline 10 is installed, the positioning base 1 with the pipe mouth mounting assembly 2 is first installed on the structural support 3, then the first pipe section 101 and the second pipe section 102 are connected with the first sleeve 21 and the second sleeve 22 in sequence, and the remaining part of the pipeline 10 is connected, after the entire pipeline 10 is pre-positioned, the relative position of the first pipe section 101 and the second pipe section 102 is fixed, and the vacuum generator is adapted, at this time, the pipeline positioning device is removed from the structural support 3, then the pipeline 10 is subjected to airtight test, and finally the vacuum generator is installed on the structural support 3 to assemble the vacuum generator with the pipeline 10 which has been pre-positioned.

[0039] Specifically, the structural support 3 is provided with a positioning reference surface 31, when the positioning base 1 is connected with the structural support 3, the positioning base 1 can be arranged in close contact with the positioning reference surface 31. The positioning base 1 is connected with the structural support 3 through the second connecting piece 6. The positioning base 1 and the positioning reference surface 31 are both provided with holes, the second connecting piece 6 can adopt a pin, the pin penetrates the positioning base 1 and the positioning reference surface 31, and the high-precision alignment of the positioning base 1 and the positioning reference surface 31 is realized. The size of the pin is The maximum tolerance allowed is 0.2mm.

[0040] The axis of the first sleeve 21 or the axis of the second sleeve 22 is arranged in parallel with the positioning reference surface 31, which reduces the interference caused by the structural support 3 to the installation of the pipeline 10. In the embodiment, the axis of the second sleeve 22 is arranged in parallel with the positioning reference surface 31. Optionally, the preset angle is 90 degrees.

[0041] In order to improve the connection stability of the first pipe segment 101 and the second pipe segment 102 with the pipe opening installation assembly 2, the pipeline positioning device is further provided with an auxiliary positioning piece 7, which is detachably arranged on the aircraft body, and when the pipeline 10 is connected with the pipe opening installation assembly 2, the auxiliary positioning assembly can be detachably connected with the first pipe segment 101 and the second pipe segment 102. Specifically, when the pipeline 10 is connected with the pipe opening installation assembly 2, the auxiliary positioning assembly can be used to fix the first pipe segment 101 and the second pipe segment 102, and auxiliary positioning is realized. It is worth noting that the auxiliary positioning piece 7 can also prevent the rotation of the first pipe segment 101 or the second pipe segment 102, and improve the coaxiality of the to-be-connected pipeline at the end of the first pipe segment 101 and the second pipe segment 102 away from the structural support 3 after installation.

[0042] In order to reduce the weight of the positioning base 1 and facilitate the installation and disassembly of the positioning base 1, the positioning base 1 is provided with a weight-reducing hole 13, which can be arranged in the shape of a circular hole, a square hole, an oval hole, etc. Optionally, the pipeline 10 is a wastewater pipeline, the pre-positioning of the pipeline 10 is carried out in the wastewater tank, and the positioning base 1 can be arranged in the form of a sheet with a relatively small thickness, which can not only further reduce the weight of the positioning base 1, but also reduce the occupied space of the wastewater tank. After the pipeline positioning device pre-positions the pipeline 10, the staff can directly install other equipment in the wastewater tank, avoiding the difficulty in installing other equipment due to insufficient space.

[0043] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A pipeline positioning device, characterized in that, For pre-positioning pipeline (10), the pipeline (10) includes a first pipe section (101) and a second pipe section (102) with their axes at a preset angle, the pipeline positioning device includes: Positioning base (1), which is detachably mounted on the aircraft body; The pipe mounting assembly (2) is disposed on the positioning base (1) and can be connected to the pipeline (10). The pipe mounting assembly (2) includes a first sleeve (21) and a second sleeve (22). The axis of the first sleeve (21) and the axis of the second sleeve (22) are at the preset angle. The first sleeve (21) can be coaxially connected to the first pipe segment (101), and the second sleeve (22) can be coaxially connected to the second pipe segment (102).

2. The pipeline positioning device according to claim 1, characterized in that, The pipeline positioning device also includes a structural support (3), which is detachably mounted on the aircraft body, and the positioning base (1) is detachably connected to the structural support (3).

3. The pipeline positioning device according to claim 2, characterized in that, The structural support (3) is provided with a positioning reference surface (31). When the positioning base (1) is connected to the structural support (3), the positioning base (1) is fitted to the positioning reference surface (31), and the axis of the first sleeve (21) or the axis of the second sleeve (22) is parallel to the positioning reference surface (31).

4. The pipeline positioning device according to claim 1, characterized in that, The pipeline positioning device further includes a first connector (4), a first connecting hole (211) is provided on the first sleeve (21), and a second connecting hole (11) is provided on the positioning base (1). The first connector (4) can pass through the first connecting hole (211) and the second connecting hole (11) so that the first sleeve (21) is connected to the positioning base (1).

5. The pipeline positioning device according to claim 1, characterized in that, The positioning base (1) is provided with a connecting protrusion (12), and the second sleeve (22) can be sleeved on the connecting protrusion (12) to achieve connection with the positioning base (1).

6. The pipeline positioning device according to claim 1, characterized in that, The first sleeve (21) is provided with a boss (23), which abuts against the inner wall of the first pipe section (101) when the pipe (10) is connected to the pipe port mounting assembly (2); and / or, the second sleeve (22) is provided with the boss (23), which abuts against the inner wall of the second pipe section (102) when the pipe (10) is connected to the pipe port mounting assembly (2).

7. The pipeline positioning device according to claim 1, characterized in that, The pipeline positioning device also includes fasteners (5), and the first pipe section (101) and the second pipe section (102) are respectively connected to the first sleeve (21) and the second sleeve (22) by fasteners (5).

8. The pipeline positioning device according to claim 7, characterized in that, The first pipe segment (101) and the second pipe segment (102) are respectively sleeved on the outside of the first sleeve (21) and the second sleeve (22). The fastener (5) includes an annular clamp, which can be sleeved on the outside of the first pipe segment (101) and the second pipe segment (102), so that the first pipe segment (101) is tightly connected to the first sleeve (21), and the second pipe segment (102) is tightly connected to the second sleeve (22).

9. The pipeline positioning device according to claim 1, characterized in that, The positioning base (1) is provided with weight reduction holes (13).

10. The pipeline positioning device according to claim 1, characterized in that, The pipeline positioning device is also provided with an auxiliary positioning component (7). When the pipeline (10) is connected to the pipe port mounting assembly (2), the auxiliary positioning component (7) can be detachably connected to the first pipe section (101) and the second pipe section (102).

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