Pipe fitting fixing device

Abstract

A pipe fitting fixing device is used for connecting and fixing a single pipe fitting with variable pipe diameters and a plurality of pipe fittings with different pipe diameters. The pipe fitting fixing device comprises a mounting seat, a clamping piece and a gasket; a plurality of pipe grooves are formed in the mounting seat; the clamping piece is provided with a plurality of hoops, and the clamping piece is connected with the mounting seat so as to fix a pipe fitting between the hoops and the pipe groove; an annular groove is formed in the inner peripheral side wall of the gasket, and an annular protruding part is arranged on the outer peripheral side wall. Wherein the gaskets are used for being arranged on the inner circumferential sides of the hoop and the pipe groove so as to clamp a pipe fitting, and the annular protruding part of the gasket on the inner circumferential side is connected with the annular groove of the gasket on the outer circumferential side in an inserted mode so that the multiple gaskets can be nested.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fixing device, concretely relates to a pipe fixing device for connecting and fixing multiple pipes. BACKGROUND

[0002] The pipeline transports fluid medium such as air, fuel and oil required during normal operation of the aero-engine to realize the functions of aero-engine operation, control and manipulation. Since the internal space of the aero-engine body and the external nacelle structure is limited, and the pipeline bears vibration, high temperature and even collision during the operation of the aero-engine, the working environment is harsh, therefore, the pipeline must be fixed to improve the rigidity and strength, which is a necessary condition for stable and reliable operation of the aero-engine.

[0003] In the prior art, multiple pipes are often fixed by using a row of clamps to save space and reduce weight, but the general applicability is poor, and it is difficult to connect and fix single pipes with varying diameters and multiple pipes with different diameters. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a pipe fixing device for connecting and fixing single pipes with varying diameters and multiple pipes with different diameters.

[0005] According to the embodiments of the utility model, the pipe fixing device comprises a mounting seat, a clamp and a gasket; the mounting seat is provided with multiple pipe grooves; the clamp is provided with multiple hoops, the clamp is connected to the mounting seat to fix the pipe between the hoop and the pipe groove; the inner peripheral side wall of the gasket is provided with an annular groove, and the outer peripheral side wall is provided with an annular protrusion; wherein the gasket is arranged on the inner peripheral side of the hoop and the pipe groove to clamp the pipe, and the annular protrusion of the gasket on the inner peripheral side is inserted into the annular groove of the gasket on the outer peripheral side to nest multiple gaskets.

[0006] In one or more embodiments, the inner peripheral side wall of the pipe groove is provided with a first arc-shaped groove for inserting the annular protrusion.

[0007] In one or more embodiments, the inner peripheral side wall of the hoop is provided with a second arc-shaped groove for inserting the annular protrusion.

[0008] In one or more embodiments, the gasket comprises two half-ring pieces, one circumferential end wall of the half-ring piece is provided with a protrusion, the other circumferential end wall of the half-ring piece is provided with a groove, the protrusion of one half-ring piece is inserted into the groove of the other half-ring piece to connect the two half-ring pieces.

[0009] In one or more embodiments, the pipe fixing device is provided with multiple clamps to fix the pipe along the way.

[0010] In one or more embodiments, the mounting base is provided with an arc-shaped bottom to be fixed to the case.

[0011] In one or more embodiments, the mounting base is provided with a first ear provided with a cross-shaped hole to be screwed to the mounting base, and a waist-shaped hole to be fixed, the long axis of the waist-shaped hole being parallel to the central axis of the cross-shaped hole.

[0012] In one or more embodiments, the gasket is made of polyimide.

[0013] In one or more embodiments, the clamping member is provided with a plurality of second ears, the plurality of second ears being alternately arranged with the plurality of hoops, each of the hoops being provided with the second ear on both sides; the mounting base is provided with a plurality of U-shaped members, the plurality of U-shaped members being alternately arranged with the plurality of pipe grooves, each of the pipe grooves being provided with the U-shaped member on both sides; each of the second ears is inserted into one of the U-shaped members and connected by a threaded fastener to fix the clamping member to the mounting base.

[0014] In one or more embodiments, the threaded fastener passes through the U-shaped member and the second ear to connect the back plate nut of the mounting base.

[0015] The embodiments of the utility model have at least one of the following beneficial effects:

[0016] The gasket is arranged on the inner circumferential side of the hoop and the pipe groove to fill the gap and clamp the pipe member, thereby fixing the pipe member. A plurality of gaskets can be nested to clamp pipe members of different sizes. The annular protrusion of the gasket on the inner circumferential side is inserted into the annular groove of the gasket on the outer circumferential side to prevent the gaskets from sliding axially. The gaskets are series in size and can be reused, and have good versatility. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other features, properties, and advantages of the utility model will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0018] Figure 1 An oblique view of the pipe member fixing device fixing the pipe member;

[0019] Figure 2 An oblique view of the pipe member fixing device fixing the pipe member;

[0020] Figure 3 An exploded view of the pipe member fixing device fixing the pipe member;

[0021] Figure 4 An oblique view of the first ear;

[0022] Figure 5 An oblique view of the half-ring member.

[0023] Reference signs:

[0024] 1 - mounting base;

[0025] 2 - pipe slot;

[0026] 3 - clamping member;

[0027] 4 - clamp;

[0028] 5 - pipe member;

[0029] 6 - gasket;

[0030] 7 - annular recess;

[0031] 8 - annular protrusion;

[0032] 9 - first arcuate recess;

[0033] 10 - half ring member;

[0034] 11 - protrusion;

[0035] 12 - slot;

[0036] 13 - arcuate base;

[0037] 14 - first ear;

[0038] 15 - cross hole;

[0039] 16 - waist-shaped hole;

[0040] 17 - gasket;

[0041] 18 - second ear;

[0042] 19 - U-shaped member;

[0043] 20 - second threaded fastener;

[0044] 21 - pallet nut. DETAILED DESCRIPTION

[0045] The utility model will be further described in connection with specific embodiments and drawings, and more details are set forth in the following description in order to fully understand the utility model, but the utility model can obviously be implemented in many other ways different from the description, and those skilled in the art can make similar generalization, deduction according to actual application conditions without departing from the connotation of the utility model, therefore the protection scope of the utility model should not be limited by the content of the specific embodiments.

[0046] It should be noted that these and other subsequent drawings are only as examples, which are not drawn in the condition of the same scale, and should not be used as the limitation of the protection scope actually required by the utility model.

[0047] The terms "first", "second", and the like can be used interchangeably to distinguish one feature from another and are not intended to signify that the individual features must be in a particular position in the various embodiments.

[0048] As shown in Figure 1 and Figure 3 , the pipe fixing device comprises a mounting base 1, which is provided with a plurality of pipe grooves 2 recessed downward from the top surface of the mounting base 1. The pipe fixing device further comprises a clamping member 3, which is provided with a plurality of hoops 4, which can be arc-shaped, and is connected to the mounting base 1. The hoops 4 and the pipe grooves 2 embrace a pipe 5, which is located between the pipe grooves 2 and the hoops 4 and is fixed.

[0049] As shown in Figure 1 and Figure 3 , the pipe fixing device further comprises a gasket 6, which is further combined with Figure 5 , the inner circumferential side wall of the gasket 6 is provided with an annular groove 7, and the outer circumferential side wall of the gasket 6 is provided with an annular protrusion 8. The gasket 6 is used to be arranged on the inner circumferential side of the hoops 4 and the pipe grooves 2 to clamp the pipe 5, as shown in Figure 1 and Figure 3 , for a plurality of pipes 5 with different diameters or a single pipe 5 with varying diameters, the size of the hoops 4 and the pipe grooves 2 is too large to allow the hoops 4, the pipe grooves 2, and the pipe 5 to have a gap therebetween, which cannot fix the pipe 5. The gasket 6 is arranged on the inner circumferential side of the hoops 4 and the pipe grooves 2 to fill the gap and clamp the pipe 5, thereby achieving the fixation of the pipe 5. As shown in Figure 1 and Figure 3 , for the pipe 5 that can be clamped by the pipe grooves 2 and the hoops 4, the gasket 6 can not be arranged. As shown in Figure 1 and Figure 3 , a plurality of gaskets 6 can be nested to clamp pipes 5 of different sizes. A large-diameter gasket 6 is arranged on the outer circumferential side of a small-diameter gasket 6, and the annular protrusion 8 of the inner circumferential side of the gasket 6 is inserted into the annular groove 7 of the outer circumferential side of the gasket 6 to nest the plurality of gaskets 6, thereby avoiding the axial sliding of the gaskets 6 nested with each other. The gaskets 6 are sized in series and can be reused.

[0050] As shown in Figure 3 , the inner circumferential side wall of the pipe groove 2 can be provided with a first arc-shaped groove 9. When the gasket 6 is used, the annular protrusion 8 of the gasket 6 is inserted into the first arc-shaped groove 9 to avoid the axial sliding of the gasket 6 relative to the pipe groove 2. Similarly, although not shown in the figure, the inner circumferential side wall of the hoop 4 can be provided with a second arc-shaped groove. When the gasket 6 is used, the annular protrusion 8 of the gasket 6 is inserted into the second arc-shaped groove to avoid the axial sliding of the gasket 6 relative to the hoop 4.

[0051] As shown in Figure 5As shown, the gasket 6 can include two half-rings 10, one circumferential end wall of the half-ring 10 can be provided with a protrusion 11, and the other circumferential end wall of the half-ring 10 can be provided with a slot 12, the protrusion 11 of one half-ring 10 is inserted into the slot 12 of the other half-ring 10 to connect the two half-rings 10 to form the gasket 6, facilitating the assembly of the gasket 6, and the two half-rings 10 are consistent in structure and convenient to process. The protrusion 11 can be a cylindrical boss, and the slot 12 can be a circular hole, and the outer diameter of the cylindrical boss is greater than the inner diameter of the circular hole to make the insertion stable.

[0052] The gasket 6 can be a high polymer material. Preferably, the material of the gasket 6 can be polyimide, which can be used for a long time in a temperature range of -200-300℃, has good high-temperature resistance, is suitable for the high-temperature environment of an aero-engine, and has excellent mechanical properties, a bending strength (20℃) ≥ 170MPa, a tensile strength ≥ 100MPa, an elastic modulus up to hundreds of GPa, and a density of 1.38-1.43g / cm 3 , increasing the damping, reducing the vibration of the pipe 5, and avoiding bumping and wearing the pipe 5, and the weight is light.

[0053] As shown in Figures 1 to 3 , the mounting seat 1 can be provided with an arc-shaped bottom 13, which is fitted to the contour of the circular casing of the aero-engine, facilitating the fixation of the mounting seat 1 to the casing. As shown in Figure 2 , the mounting seat 1 can be welded by a plate, which is convenient to process, light in weight, low in cost, and the arc-shaped bottom 13 is the arc-shaped bottom edge of the plate.

[0054] As shown in Figure 1 and Figure 3 , the pipe fixing device can be provided with a plurality of clamps 3 arranged along the length direction of the pipe 5 to fix the pipe 5 along the length, having a large contact area with the pipe 5, improving the fixing effect of the pipe 5, and reducing the vibration of the pipe 5. In the illustrated embodiment, the pipe fixing device is provided with two clamps 3.

[0055] As shown in Figures 1 to 3 , the mounting seat 1 can be provided with a first ear 14, which can be arranged on both sides of the mounting seat 1, further in combination with Figure 4 , the first ear 14 can be provided with a cross hole 15 and be threadedly connected to the mounting seat 1 through the cross hole 15, and the first ear 14 can also be provided with a waist-shaped hole 16 and be fixed to the casing as described above through the waist-shaped hole 16, the major axis of the waist-shaped hole 16 is parallel to the central axis of the cross hole 15, and changing the connection position of the waist-shaped hole 16 and the cross hole 15 can adjust the position of the mounting seat 1 in three directions of the space rectangular coordinate system, compensating for the machining and assembly errors of the pipe 5. As shown in Figure 2 and Figure 3As shown, the first threaded fastener passes through the cross hole 15 and the mounting base 1 and is locked. A gasket 17 is provided between the first threaded fastener and the cross hole 15 to ensure that the first threaded fastener fits tightly against the surface of the first lug 14.

[0056] like Figure 3 As shown, the clip 3 can be provided with multiple second lugs 18, and the multiple second lugs 18 and multiple clamps 4 can be alternately arranged. Two clamps 4 can be connected by a second lug 18. The clamps 4 located on the outer side can be provided with second lugs 18 protruding outwards. Each clamp 4 is provided with second lugs 18 on both sides. Further integration Figure 1 The mounting base 1 can be equipped with multiple U-shaped pieces 19, which are alternately arranged with multiple pipe grooves 2. One U-shaped piece 19 can be placed between two pipe grooves 2, and another U-shaped piece 19 can be placed on the outer side of the outer pipe groove 2. Each pipe groove 2 has U-shaped pieces 19 on both sides. The U-shaped pieces 19 can be fixed to the top surface of the mounting base 1. Each second lug 18 is inserted into a U-shaped piece 19 and connected by a second threaded fastener 20 to fix the clamp 3 to the mounting base 1. Each clamp 4 has a second lug 18 on both sides, and each pipe groove 2 has U-shaped pieces 19 on both sides, making each clamp 4 securely connected on both sides and firmly fixing each pipe fitting 5. Further integration... Figure 2 The second threaded fastener 20 can pass through the U-shaped piece 19 and the second lug 18 and be threadedly connected to the plate nut 21 on the back of the mounting base 1, thereby locking the U-shaped piece 19 and the second lug 18. The plate nut 21 can be riveted to the mounting base 1.

[0057] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention.

Claims

1. A pipe fixing device characterized by Comprising: a mounting base provided with a plurality of pipe slots; a clamping member provided with a plurality of clamps, the clamping member being connected to the mounting base to secure a pipe between the clamps and the pipe slots; and a gasket provided with an annular groove on an inner circumferential wall and an annular protrusion on an outer circumferential wall; wherein the gasket is arranged to be clamped between the clamps and the pipe slots, the annular protrusion of the gasket on the inner circumferential wall being inserted into the annular groove of the gasket on the outer circumferential wall to nest a plurality of the gaskets.

2. The pipe securing device according to claim 1, wherein: the inner circumferential wall of the pipe slot is provided with a first arc-shaped groove for insertion of the annular protrusion.

3. The pipe securing device according to claim 1, wherein: the inner circumferential wall of the clamp is provided with a second arc-shaped groove for insertion of the annular protrusion.

4. The pipe securing device according to claim 1, wherein: the gasket comprises two half-rings, one circumferential end wall of the half-ring is provided with a protrusion, and the other circumferential end wall of the half-ring is provided with a groove, the protrusion of one half-ring being inserted into the groove of the other half-ring to connect the two half-rings.

5. The pipe securing device according to claim 1, wherein: the pipe securing device is provided with a plurality of clamping members to secure the pipe along the length.

6. The pipe securing device according to claim 1, wherein: the mounting base is provided with an arc-shaped bottom to be secured to a machine case.

7. The pipe securing device according to claim 1, wherein: the mounting base is provided with a first ear, the first ear is provided with a cross-shaped hole for threaded connection of the mounting base, and the first ear is provided with a waist-shaped hole to be secured, the long axis of the waist-shaped hole being parallel to the central axis of the cross-shaped hole.

8. The pipe securing device according to claim 1, wherein: the material of the gasket is polyimide.

9. The pipe securing device according to claim 1, wherein: the clamping member is provided with a plurality of second ears, the plurality of second ears being arranged alternately with the plurality of clamps, each of the clamps being provided with the second ears on both sides; the mounting base is provided with a plurality of U-shaped members, the plurality of U-shaped members being arranged alternately with the plurality of pipe slots, each of the pipe slots being provided with the U-shaped members on both sides; each of the second ears is inserted into one of the U-shaped members and connected by a threaded fastener to secure the clamping member to the mounting base.

10. The pipe securing device according to claim 9, wherein: the threaded fastener passes through the U-shaped member and the second ear to connect a backing plate nut on the back of the mounting base. ​

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