Fiber composite material circular pipe intersecting connection method and device

Abstract

The invention provides a fiber composite material circular pipe intersecting connection method and device, and belongs to the field of fiber composite material manufacturing, the fiber composite material circular pipe intersecting connection device comprises a first fiber composite material pipe and a second fiber composite material pipe, and the first fiber composite material pipe and the second fiber composite material pipe are connected and fixed together through an adhesive; and the matching position of the first fiber composite material pipe and the second fiber composite material pipe is fixed through the connecting and fixing device, and precise assembly of the fiber composite material pipes at the intersecting position is achieved. The method is quick, labor-saving and convenient, the sealing problem after the fiber composite material product is perforated is solved, the problem of precise assembly between the fiber composite material part and the fiber composite material product is solved, and through connection between fiber composite materials is achieved. The connecting device can be movably used, can be conveniently and locally installed and used along with a working site, is easy to install and convenient to disassemble, saves time and labor cost, and improves production efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of design and manufacturing of fiber composite materials, and particularly relates to a method and a device for intersecting connection of fiber composite material circular tubes. Background Art

[0002] Fiber composite materials are increasingly used in various industries due to their excellent characteristics of light weight and high strength. The forming processes and methods of fiber composite material products with different characteristics are also different. Traditional materials such as metals and ceramics are not restricted by the processing direction due to their isotropic properties, but they also lose the design flexibility of the materials. Fiber composite materials have anisotropy compared with traditional materials, and have strong designability, which can give full play to the design performance of the materials and maximize the lightweight design of products. They are widely used in the design and manufacturing of fiber composite material products.

[0003] In order to accurately achieve the shape and performance of product design and avoid the loss of product performance caused by secondary processing, it is necessary to protect the interface after processing of fiber composite material products. When using traditional metal parts for reinforcement and protection, problems such as poor deformation coordination will occur due to different thermal expansion coefficients between heterogeneous materials, resulting in interface cracking damage, and even failure and shedding. This poses a requirement for how to use homogeneous fiber composite material parts for reinforcement and protection. Summary of the Invention

[0004] In view of this, in order to solve the problems of precise connection and sealing reinforcement between fiber composite materials, the present invention proposes a method and a device for intersecting connection of fiber composite material circular tubes, realizing the intersecting connection between fiber composite material products and fiber composite material parts.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A fiber composite material circular tube intersecting connection device includes a bottom plate, a panel, a connecting screw, a bottom plate fixing nut and a panel fixing nut. The bottom plate and the panel are respectively closely attached to the inner wall and the outer wall of the second fiber composite material tube. Through holes are symmetrically arranged on the bottom plate and the panel. The connecting screw passes through the through holes on the bottom plate and the panel, and the bottom plate and the panel are respectively fixed to the connecting screw through the bottom plate fixing nut and the panel fixing nut.

[0006] Furthermore, both the bottom plate and the panel are arc-shaped, and the radian is the same as that of the second fiber composite material tube.

[0007] A connection method using the fiber composite material circular tube intersecting connection device specifically includes the following steps:

[0008] Step 1: Clean the interface at the opening of the second fiber composite material tube and apply a layer of adhesive.

[0009] Step 2: Clean the outer surface interface of the first fiber composite material tube and apply a layer of adhesive.

[0010] Step 3: Apply a layer of mold release agent on each component of the connecting device and use it after the mold release agent dries.

[0011] Step 4: Attach the bottom plate of the connecting device to the opening position of the second fiber composite material tube, install the first fiber composite material tube at the opening position of the second fiber composite material tube, adjust until the circumferential curve and radial dimension are in consistent fit. Pass the connecting screw through the bottom plate connection hole of the bottom plate, screw it into the bottom plate fixing nut, clean the excess adhesive overflowing at the bonding interface of the second fiber composite material tube and the first fiber composite material tube, pass the panel through the panel connection hole into the connecting screw, and screw it into the panel fixing nut to complete the connection and fixation.

[0012] Step 5: After the adhesive cures, disassemble the connecting device, unscrew the panel fixing nut, remove the panel, take out the connecting screw and the bottom plate fixing nut, and then remove the bottom plate.

[0013] Step 6: Clean the bonding interface to complete the intersecting connection of the first fiber composite material tube and the second fiber composite material tube.

[0014] Furthermore, the thickness of the adhesive applied in Step 1 and Step 2 is 0.05 mm.

[0015] Furthermore, the adhesive is body glue.

[0016] Furthermore, a rubber layer is pasted on the inner ring of the first fiber composite material tube.

[0017] Compared with the prior art, the beneficial effects of the method and device for intersecting connection of fiber composite material round tubes of the present invention are as follows:

[0018] 1. The method for intersecting connection of fiber composite material round tubes of the present invention realizes the intersecting connection of fiber composite material tubes and precise assembly at the intersecting position through the connecting device.

[0019] 2. The present invention connects and fixes the fiber composite material tubes together through the adhesive, realizing the sealed connection between the two tubes and the reinforcement after the opening of the fiber composite material product.

[0020] 3. The device of the present invention can be used movably, is convenient for on-site installation according to the working site, is simple to install and convenient to disassemble, saves time and labor costs, and improves production efficiency. Brief Description of the Drawings

[0021] The accompanying drawings, which form a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a three-dimensional view of the intersecting connection method of the fiber composite circular tube according to the present invention;

[0023] Figure 2 It is a schematic side half-sectional view of the intersecting connection method of the fiber composite circular tube according to the present invention;

[0024] Figure 3 It is a semi-sectional three-dimensional internal view of the intersecting connection method of the fiber composite circular tube according to the present invention;

[0025] Figure 4 It is a semi-sectional three-dimensional external view of the intersecting connection method of the fiber composite circular tube according to the present invention;

[0026] Figure 5 It is a schematic view of the bottom plate of the intersecting connection method of the fiber composite circular tube according to the present invention;

[0027] Figure 6 It is a schematic view of the panel of the intersecting connection method of the fiber composite circular tube according to the present invention;

[0028] Wherein, 1 - the first fiber composite tube, 2 - the second fiber composite tube, 3 - the adhesive, 4 - the bottom plate, 5 - the panel, 6 - the connecting screw, 7 - the bottom plate fixing nut, 8 - the panel fixing nut, 9 - the bottom plate connection hole, 10 - the panel connection hole. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Refer to Figures 1-6 To illustrate this embodiment, a fiber composite circular tube intersecting connection device includes a bottom plate 4, a panel 5, a connecting screw 6, a bottom plate fixing nut 7, and a panel fixing nut 8. The bottom plate 4 and the panel 5 are respectively in close contact with the inner wall and the outer wall of the second fiber composite tube 2. Through holes are symmetrically arranged on the bottom plate 4 and the panel 5. The connecting screw 6 passes through the through holes on the bottom plate 4 and the panel 5, and the bottom plate 4 and the panel 5 are respectively fixed to the connecting screw 6 through the bottom plate fixing nut 7 and the panel fixing nut 8.

[0031] The bottom plate 4 and the panel 5 are both arc-shaped, and the radian is the same as that of the second fiber composite material tube 2.

[0032] A connection method for a connection device using fiber composite material circular tubes in intersection, specifically including the following steps:

[0033] Step 1: Clean the interface at the opening of the second fiber composite material tube 2, and apply a layer of adhesive with a thickness of 0.05 mm.

[0034] Step 2: Clean the outer surface interface of the first fiber composite material tube 1, and apply a layer of adhesive with a thickness of 0.05 mm.

[0035] Step 3: Apply a layer of release agent on each component of the connection device, and use it after the release agent dries.

[0036] Step 4: Attach the bottom plate 4 of the connection device to the opening position of the second fiber composite material tube 2, install the first fiber composite material tube 1 to the opening position of the second fiber composite material tube 2, adjust until the circumferential curve and the radial dimension are in consistent fit, pass the connection screw 6 through the connection hole 9 of the bottom plate 4, screw it into the bottom plate fixing nut 7, clean the excess adhesive overflowing at the bonding interface between the second fiber composite material tube 2 and the first fiber composite material tube 1, pass the panel 5 through the connection hole 10 into the connection screw 6, and screw it into the panel fixing nut 8 to complete the connection and fixation.

[0037] Step 5: After the adhesive cures, disassemble the connection device, unscrew the panel fixing nut 8, remove the panel 5, take out the connection screw 6 and the bottom plate fixing nut 7, and remove the bottom plate 4.

[0038] Step 6: Clean the bonding interface to complete the intersection connection between the first fiber composite material tube 1 and the second fiber composite material tube 2.

[0039] The adhesive is body glue.

[0040] A rubber layer is attached to the inner ring of the first fiber composite material tube 1 for sealing.

[0041] The present invention connects and fixes the first fiber composite material tube and the second fiber composite material tube together through an adhesive to achieve a sealed connection between two homogeneous tubes, and fixes the mating position of the first fiber composite material tube and the second fiber composite material tube through a connection and fixing device to achieve precise assembly of the fiber composite material tubes at the intersection position.

[0042] The application occasion of the method for intersecting connection of fiber composite round tubes described in this application is mainly when fiber composite round tubes need to be perforated and the sealing performance needs to be ensured at the same time. Due to the laminated characteristics of fiber composite products, traditional methods include directly applying an adhesive layer or directly sticking other media with an adhesive. Due to material differences, when subjected to temperature changes or product stress deformation, the opening joints are prone to damage or cannot deform synergistically at the same time, resulting in loosening of the paste and easy leakage of water and air. In this application, a No. 1 fiber composite tube 1 is creatively used as a homogeneous protective layer, and an intersecting connection device is used to ensure the firmness and sealing performance of the paste. Then, a rubber layer is provided on the inner ring of the No. 1 fiber composite tube 1, which can further ensure the sealing performance.

[0043] The embodiments of the present invention disclosed above are only used to help explain the present invention. The embodiments do not describe all details in detail, nor do they limit the invention to the specific embodiments described. According to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention.

Claims

1. A fiber composite material circular tube intersecting connection device, characterized in that: The invention comprises a bottom plate (4), a panel (5), a connecting screw (6), a bottom plate fixing nut (7) and a panel fixing nut (8); the bottom plate (4) and the panel (5) are respectively closely attached to the inner wall and the outer wall of the second fiber composite material tube (2); through holes are symmetrically arranged on the bottom plate (4) and the panel (5); the connecting screw (6) passes through the through holes on the bottom plate (4) and the panel (5); the bottom plate (4) and the panel (5) are respectively fixed to the connecting screw (6) by the bottom plate fixing nut (7) and the panel fixing nut (8).

2. The fiber composite material circular tube intersecting connection method according to claim 1, characterized in that: The bottom plate (4) and the face plate (5) are both curved surfaces, and the curvature is the same as that of the No. 2 fiber composite material tube (2).

3. A connection method using the fiber composite material circular tube intersecting connection device according to claim 1 or 2, characterized in that: The specific steps include: Step 1: Clean the interface of the opening of the No. 2 fiber composite material tube (2) and apply a layer of adhesive; Step 2: Clean the outer surface interface of the No. 1 fiber composite material tube (1) and apply a layer of adhesive; Step 3: Apply a layer of release agent on each part of the connection device and use it after the release agent is dry; Step 4: attach the bottom plate (4) of the connection device to the opening position of the No. 2 fiber composite material tube (2), install the No. 1 fiber composite material tube (1) to the opening position of the No. 2 fiber composite material tube (2), adjust them to the same circumferential curve and radial size, pass the connecting screw (6) through the bottom plate connecting hole (9) of the bottom plate (4), screw in the bottom plate fixing nut (7), clean the excess adhesive overflowed from the bonding interface of the No. 2 fiber composite material tube (2) and the No. 1 fiber composite material tube (1), pass the panel (5) through the panel connecting hole (10) through the connecting screw (6), screw in the panel fixing nut (8), and complete the connection and fixation; Step 5: After the adhesive is cured, disassemble the connection device, unscrew the panel fixing nut (8), remove the panel (5), remove the connecting screw (6) and the bottom plate fixing nut (7), and remove the bottom plate (4); Step 6: Clean the bonding interface and complete the intersecting connection between the No. 1 fiber composite material tube (1) and the No. 2 fiber composite material tube (2).

4. The method for connecting fiber composite material circular tubes according to claim 3, characterized in that: The thickness of the adhesive applied in step 1 and step 2 is 0.05 mm.

5. The method for connecting fiber composite material circular tubes according to claim 3, characterized in that: The adhesive is a bulk adhesive.

6. The method for connecting fiber composite material circular tubes according to claim 3, characterized in that: The inner ring of the No. 1 fiber composite material tube (1) is affixed with a rubber layer.

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