Carbon fiber special-shaped handrail and pressing die

Abstract

The utility model relates to the technical field of handrails, and concretely relates to a carbon fiber special-shaped handrail and pressing mould, characterized in that the handrail comprises a foamed inner core and a carbon fiber outer protective layer, the carbon fiber outer protective layer wraps the foamed inner core, the foamed inner core and the carbon fiber outer protective layer both comprise an n-shaped handrail part and a transverse connecting part, the open end of the n-shaped handrail part is integrally and perpendicularly connected with the transverse connecting part, a connecting nut is pre-embedded in the end part of the transverse connecting part, the carbon fiber special-shaped handrail is pressed and formed through the pressing mould, and the carbon fiber special-shaped handrail has the advantages of simple structure, carbon fiber material, lightness, convenient installation, stable connection, long service life, comfortable hand feeling, high forming efficiency, good forming effect and the like.

Description

Technical Field

[0001] This utility model relates to the field of handrail technology, specifically a carbon fiber irregular handrail and pressing mold that is simple in structure, made of carbon fiber, lightweight, easy to install, stable in connection, long in service life, comfortable in hand, efficient in molding, and has good molding effect. Background Technology

[0002] As we all know, handrails are an indispensable part of public construction. For example, handrails are needed in restrooms in shopping malls and hospitals, public corridors on ships, and activity areas for the disabled. However, existing handrails are generally made of metal, and due to space limitations, some handrails are designed in irregular shapes. Irregularly shaped metal handrails are usually formed by welding. Welded metal handrails are very heavy, and the labor intensity during transportation is high. In particular, metal handrails installed on ships are prone to corrosion, affecting their strength and service life. Metal handrails are also very cold to the touch, resulting in poor comfort, especially in winter. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a carbon fiber irregular handrail and pressing mold that is simple in structure, made of carbon fiber, lightweight, easy to install, stable in connection, long in service life, comfortable to hold, efficient in molding, and has good molding effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A carbon fiber shaped handrail, characterized in that the handrail includes a foamed inner core and a carbon fiber outer sheath, the carbon fiber outer sheath wrapping the foamed inner core, and both the foamed inner core and the carbon fiber outer sheath include an n-shaped handrail portion and a transverse connecting portion, the open end of the n-shaped handrail portion being integrally and vertically connected to the transverse connecting portion, and a connecting nut being pre-embedded in the end of the transverse connecting portion.

[0005] The end of the transverse connecting part of this utility model is sealed by a carbon fiber end face layer integrally formed with the carbon fiber outer sheath, and the carbon fiber end face layer is provided with a hole for exposed connecting nut.

[0006] The connecting nut of this invention is integrally connected to an annular baffle at its outer end. The annular baffle blocks the inner wall of the carbon fiber end face layer, increasing the connection strength between the connecting nut and the handrail and ensuring connection stability.

[0007] A pressing mold for a carbon fiber irregular handrail includes an upper mold and a lower mold. The lower mold has a horizontal lower n-shaped groove, the opening of which connects to a downwardly curved lower transverse groove. A circular groove is located at the lower end of the lower transverse groove on the lower mold. Both the lower n-shaped groove and the lower transverse groove have semi-circular cross-sections. The upper mold has a horizontal upper n-shaped groove, the opening of which connects to the downwardly curved upper transverse groove. Both the upper n-shaped groove and the upper transverse groove have semi-circular cross-sections. After the upper and lower molds are engaged, the lower n-shaped groove, the lower transverse groove, the upper n-shaped groove, the upper transverse groove, and the circular groove form the irregular handrail forming cavity.

[0008] The lower template of this invention has a fixed protruding guide post, and the upper template has a guide hole that cooperates with the guide post. The upper template and the lower template are guided and closed by the cooperation of the guide post and the guide hole.

[0009] The lower template of this invention has a positioning protrusion on each of its four corners, and a positioning groove that mates with the positioning protrusion is provided at each of the four corners of the upper template. After the upper and lower templates are closed, the upper and lower templates are aligned and closed by the cooperation of the positioning protrusion and the positioning groove, ensuring the integrity of the irregular handrail forming cavity.

[0010] This utility model, due to the above-mentioned structure, has the advantages of simple structure, carbon fiber material, lightweight, convenient installation, stable connection, long service life, comfortable feel, high molding efficiency, and good molding effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the carbon fiber irregular handrail structure of this utility model.

[0012] Figure 2 yes Figure 1 Side view.

[0013] Figure 3 This is a schematic diagram of the pressing mold structure for the carbon fiber irregular handrail of this utility model.

[0014] Figure 4 yes Figure 3 A schematic diagram of the structure of the lower middle template.

[0015] Figure 5 yes Figure 3 A structural diagram of the upper and middle templates. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings: As shown in the attached figure, a carbon fiber shaped handrail is characterized in that the handrail includes a foamed inner core 1 and a carbon fiber outer protective layer 2, the carbon fiber outer protective layer 2 wrapping the foamed inner core 1, and both the foamed inner core 1 and the carbon fiber outer protective layer 2 include an n-shaped handrail part 3 and a transverse connecting part 4. The open end of the n-shaped handrail part 3 is integrally and vertically connected to the transverse connecting part 4, and a connecting nut 5 is pre-embedded in the end of the transverse connecting part 4.

[0017] Furthermore, the end of the transverse connecting part 4 is sealed by a carbon fiber end face layer 6 integrally formed with the carbon fiber outer sheath 2, and the carbon fiber end face layer 6 is provided with a connecting nut exposed hole 7.

[0018] Furthermore, the outer end of the connecting nut 5 is integrally connected to an annular baffle 8, which blocks the inner wall of the carbon fiber end face layer 6, increasing the connection strength between the connecting nut 5 and the handrail and ensuring connection stability.

[0019] A pressing mold for a carbon fiber irregular handrail includes an upper mold plate 9 and a lower mold plate 10. The lower mold plate 10 has a horizontal lower n-shaped groove 11, the open end of which connects to a downwardly curved lower transverse groove 19. A circular groove 12 is provided on the lower mold plate 10 at the lower end of the lower transverse groove 19. Both the lower n-shaped groove 11 and the lower transverse groove 19 have semi-circular cross-sections. The upper mold plate 9 has a horizontal upper n-shaped groove 13, the open end of which connects to a downwardly curved upper transverse groove 14. Both the upper n-shaped groove 13 and the upper transverse groove 14 have semi-circular cross-sections. After the upper mold plate 9 and the lower mold plate 10 are engaged, the lower n-shaped groove 11, the lower transverse groove 19, the upper n-shaped groove 13, the upper transverse groove 14, and the circular groove 12 form the irregular handrail forming cavity.

[0020] Furthermore, the lower template 10 is fixed with a protruding guide post 15, and the upper template 9 is provided with a guide hole 16 that cooperates with the guide post 15. The upper template 9 and the lower template 10 are guided and molded together by the cooperation and insertion of the guide post 15 and the guide hole 16.

[0021] Furthermore, the lower template 10 is provided with positioning protrusions 17 at its four corners, and the upper template is provided with positioning grooves 18 at its four corners that cooperate with the positioning protrusions 17. After the upper template 9 and the lower template 10 are closed, the upper template 9 and the lower template 10 are aligned and closed by the cooperation of the positioning protrusions 17 and the positioning grooves 18, ensuring the good integrity of the irregular handrail forming cavity.

[0022] The method for manufacturing the irregular handrail of this utility model involves first creating a foamed inner core 1 with the shape of the irregular handrail on a pressing mold for a carbon fiber irregular handrail. After the core is created, carbon fiber prepreg is laid on the lower n-shaped groove 11 and the lower transverse groove 19 of the lower template 10. The foamed inner core 1 is then placed on top of the laid carbon fiber prepreg. The carbon fiber prepreg of the carbon fiber end face layer 6 is then laid on the circular groove 12 on the lower template 10. The connecting nut 5 is then placed at the position of the exposed hole 7 of the connecting nut. The annular baffle 8 of the connecting nut 5 blocks the inner wall of the carbon fiber end face layer 6. The connecting nut 5 is inserted into the end of the transverse connecting part 4 of the foamed inner core 1. Finally, the upper layer of carbon fiber prepreg is completely wrapped around the upper side of the foamed inner core 1, thus wrapping the carbon fiber prepreg of the carbon fiber end face layer 6 around the foamed inner core. The carbon fiber prepreg fabric is integrally connected and wrapped, and then the upper mold 9 is moved down to close with the lower mold 10. After mold closing, it is pressed and formed, and then demolded to form a carbon fiber shaped handrail. Because the handrail is wrapped with the foamed inner core 1 and the carbon fiber outer protective layer 2, it is lightweight, high-strength, and has a stable connection. Moreover, the connecting nut 5 is embedded in the inside of the handrail, which can ensure the connection stability of the entire carbon fiber shaped handrail. It has no cold feeling, a comfortable feel, and a long service life. The handrail can be installed in any place where a handrail needs to be installed, and it can be connected to the installation location by bolts. Due to the above structure, this utility model has the advantages of simple structure, carbon fiber material, lightweight, convenient installation, stable connection, long service life, comfortable feel, high molding efficiency, and good molding effect.

Claims

1. A carbon fiber irregular-shaped handrail, characterized in that... The handrail includes a foamed inner core and a carbon fiber outer sheath. The carbon fiber outer sheath wraps around the foamed inner core. Both the foamed inner core and the carbon fiber outer sheath include an n-shaped handrail section and a transverse connecting section. The open end of the n-shaped handrail section is integrally and vertically connected to the transverse connecting section. A connecting nut is pre-embedded in the end of the transverse connecting section.

2. The carbon fiber irregular handrail according to claim 1, characterized in that... The end of the transverse connecting part is sealed by a carbon fiber end face layer integrally formed with the carbon fiber outer sheath, and the carbon fiber end face layer is provided with a hole for exposed connecting nut.

3. A carbon fiber irregular handrail according to claim 1, characterized in that... The outer end of the connecting nut is integrally connected to an annular baffle. The annular baffle blocks the inner wall of the carbon fiber end face layer, increasing the connection strength between the connecting nut and the handrail and ensuring connection stability.

4. A pressing mold for a carbon fiber irregular handrail, comprising an upper mold and a lower mold, characterized in that... The lower template has a horizontal lower n-shaped groove, the opening end of which connects to a lower transverse groove that bends downwards. The lower template at the lower end of the lower transverse groove has a circular groove. Both the lower n-shaped groove and the lower transverse groove have semi-circular cross-sections. The upper template has a horizontal upper n-shaped groove, the opening end of which connects to an upper transverse groove that bends downwards. Both the upper n-shaped groove and the upper transverse groove have semi-circular cross-sections. After the upper and lower templates are fastened together, the lower n-shaped groove, the lower transverse groove, the upper n-shaped groove, the upper transverse groove, and the circular groove form a shaped handrail forming cavity.

5. The pressing mold for a carbon fiber irregular handrail according to claim 4, characterized in that... The lower template has a fixed protruding guide post, and the upper template has a guide hole that mates with the guide post. The upper and lower templates are guided and closed by the cooperation of the guide post and the guide hole.

6. The pressing mold for a carbon fiber irregular handrail according to claim 4, characterized in that... The lower template has a positioning protrusion on each of its four corners, and the upper template has a positioning groove at each of its four corners that mates with the positioning protrusion. After the upper and lower templates are closed, the positioning protrusion and the positioning groove work together to align the upper and lower templates.

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