Folding shed structure

Abstract

The utility model relates to a folding shed structure which comprises a plurality of edge covering clamping pieces and a folding shed body. Wherein the vestibule shed body comprises a plurality of vestibule shed rings, and each vestibule shed ring comprises an outer shed cloth layer, a middle shed cloth layer and an inner shed cloth layer; the outer-layer shed cloth and the middle-layer shed cloth are connected and combined to form a first cavity, the inner-layer shed cloth and the middle-layer shed cloth are connected and combined to form a second cavity, and the overlapping positions of the ends of the middle-layer shed cloth and the outer-layer shed cloth of the adjacent folding shed rings are clamped and connected through edge-covering clamping pieces. According to the folding shed structure, on the premise that the sound insulation performance is improved, the space requirement for installation of the folding shed is reduced, the total weight of the folding shed structure is reduced, the development requirements for compact space and light weight of the folding shed structure are met, meanwhile, the outer-layer folding shed ring plays a role in shielding the sewing lap joint position of the inner folding shed ring, and good rainproof and airtight performance is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail vehicles, and in particular relates to a bellows structure. Background Art

[0002] The gangway is an important component for connecting and communicating between trains. With the increase in train speed levels and the improvement in passengers' demand for riding comfort, the requirements for the sound insulation performance of the gangway are becoming increasingly higher.

[0003] The improvement of the sound insulation performance of the through-aisle is mainly achieved by optimizing the through-aisle bellows structure. At present, the bellows structure has developed from a single-layer to a double-layer or even a three-layer structure. The three-layer bellows structure in the existing technology usually only adds a single-layer bellows structure on the basis of the double-layer bellows structure to improve the sound insulation performance. It requires a large installation space and increases the weight a lot, which does not meet the development requirements of the bellows structure of the through-aisle, compact space and lightweight. In addition, there are usually more exposed seams and overlaps of the tent cloth, and the risk of sealing failure is high.

[0004] Taking patent 202111401387.8 as an example, it discloses a three-layer bellows structure, including an outer bellows and an inner bellows fixed to a mounting frame, wherein the outer bellows includes a U-shaped outer bellows cloth and a U-shaped inner bellows cloth, the outer bellows cloth and the inner bellows cloth are fixed at their overlap by sewing threads, and the ends of adjacent outer bellows cloths are clamped by cloth-clamping profiles; the inner bellows includes a U-shaped bellows cloth, and the ends of adjacent U-shaped bellows cloths are fixed by sewing threads and clamped by cloth-clamping profiles. The bellows structure independently installs a single-layer inner bellows structure on the basis of an O-shaped tubular outer bellows, but has the defect of occupying a large space. At the same time, adjacent outer bellows cloths and adjacent U-shaped bellows cloths are clamped by cloth-clamping profiles, which increases the overall weight of the bellows structure. Utility Model Content

[0005] The purpose of the utility model is to solve one of the above technical problems and provide a bellows structure.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A bellows structure comprises a plurality of edge-binding clips and a bellows body;

[0008] The bellows body includes a plurality of bellows rings, which include an outer shed cloth, a middle shed cloth and an inner shed cloth; the outer shed cloth and the middle shed cloth are connected to form a first cavity, the inner shed cloth and the middle shed cloth are connected to form a second cavity, and the overlapping ends of the middle shed cloth and the outer shed cloth of adjacent bellows rings are clamped and connected by edge clamps.

[0009] In some embodiments of the present invention, the outer awning cloth and the middle awning cloth are both arched, and both include an arched ring portion, and the two arched ring portions are opposite to each other and combined to form a crescent-shaped cavity;

[0010] In some embodiments of the utility model, the inner shed cloth includes an inner ring cloth, the inner ring cloth is arc-shaped, and the inner ring cloth is opposite to the arched ring portion of the middle shed cloth to form an O-shaped cavity.

[0011] In some embodiments of the utility model, the inner shed cloth further includes a connecting cloth arranged on the side of the inner ring cloth, and the middle shed cloth further includes a vertical connecting part arranged on the side of the arched ring part, and the connecting cloth of the inner ring cloth is connected to the vertical connecting part of the middle shed cloth.

[0012] In some embodiments of the utility model, it further includes connecting cloths on both sides, which are respectively fixed to the two ends of the inner ring cloth, and the ends of the two connecting cloths away from the inner ring cloth are fixedly connected to the ends of the vertical connection part of the middle shed cloth away from the arch ring part.

[0013] In some embodiments of the utility model, the inner ring cloth and the connecting cloth, and the connecting cloth and the middle shed cloth are all fixed by sewing thread.

[0014] In some embodiments of the present invention, two docking frames are further included, and the overlapping ends of the middle shed cloth and the outer shed cloth of the folding shed rings at both ends are press-fitted and fixed in the two docking frames respectively.

[0015] In some embodiments of the present invention, the two docking frames are respectively fixedly installed on the body of the train.

[0016] In some embodiments of the utility model, the connection between the middle shed cloth and the outer shed cloth of the same folding shed ring is fixed by sewing thread, and the sewing thread is located in the edge clamp.

[0017] In some embodiments of the present invention, the overlapping ends of the middle shed cloth and the outer shed cloth of adjacent bellows rings are fixedly connected by sewing threads, and the sewing threads are located in the edge binding clamp.

[0018] The beneficial effects of the utility model are:

[0019] 1. The bellows structure provided by the utility model provides a three-layer bellows structure with a double cavity through the cooperation of the outer bellows cloth, the middle bellows cloth and the inner bellows cloth, which can improve the sound insulation performance of the bellows and meet the requirements of the sound insulation performance index of the through passage;

[0020] 2. The folding shed structure provided by the utility model forms a crescent-shaped cavity by connecting the outer shed cloth and the middle shed cloth, and forms an O-shaped cavity by connecting the inner shed cloth and the middle shed cloth, thus forming a three-layer shed cloth double sound insulation cavity structure. The overall structure is compact, which reduces the installation space requirement of the folding shed;

[0021] 3. The adjacent bellows rings of the bellows structure provided by the utility model are connected and fixed by sewing thread and a binding clamp, which is conducive to reducing the overall weight of the bellows structure and conforms to the demand for lightweight development of bellows structure;

[0022] 4. In the bellows structure provided by the utility model, the outer bellows shields the sewing overlap of the inner bellows rings, thereby ensuring the overall rainproof and airtight performance of the bellows windshield. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural schematic diagram of the bellows structure;

[0025] Figure 2 It is an enlarged view of part A in the structural schematic diagram of the bellows structure;

[0026] Figure 3 It is a structural schematic diagram of the inner shed cloth of the folding shed structure;

[0027] Wherein, the accompanying drawings are marked as follows:

[0028] 1. Outer shed cloth; 2. Middle shed cloth; 3. Inner shed cloth; 31. Inner ring cloth; 32. Connecting cloth; 33. Inner connecting sewing thread; 4. Edge clamp; 5. Ring-in-ring sewing thread; 6. Ring-in-ring sewing thread; 7. Docking frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0030] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can be applied to other similar scenarios based on these drawings without any creative work.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0032] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the usual meanings understood by persons with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a kind" and the like involved in this application do not indicate a quantitative limitation and may indicate the singular or plural. The terms "include", "comprises", "has" and any variations thereof involved in this application are intended to cover non-exclusive inclusions.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] As attached Figure 1-3 As shown, in a schematic embodiment of a bellows structure of the utility model, the bellows structure includes a bellows body and an edge-binding clamp 4 .

[0035] The bellows body includes a plurality of bellows rings connected in sequence, and each bellows ring includes an outer shed cloth 1, a middle shed cloth 2, and an inner shed cloth 3. The outer shed cloth 1 and the middle shed cloth 2 of each bellows ring are connected, and the combination of the two forms a first cavity, and the inner shed cloth 3 is connected to the middle shed cloth 2, and the combination of the two forms a second cavity. The double-layer cavity composed of the first cavity and the second cavity effectively improves the sound insulation performance of the bellows structure. The ends of the middle shed cloth 2 and the outer shed cloth 1 of adjacent bellows rings overlap, and the overlapping ends are clamped and connected by an edge clamp 4. The bellows rings composed of three layers of shed cloth are pressed and connected by an aluminum edge clamp 4, which is conducive to reducing the overall weight of the bellows structure and conforming to the demand for lightweight development of the bellows structure.

[0036] In some embodiments of the utility model, the outer awning cloth 1 and the middle awning cloth 2 are both arched, and both include an arched ring portion and vertical connecting portions located on both sides of the arched ring portion, and the two arched ring portions are opposite to each other and combined to form a crescent-shaped cavity. The vertical connecting portion of the outer awning cloth 1 and the vertical connecting portion of the middle awning cloth 2 are fitted and connected to form a closed structure.

[0037] Furthermore, the inner awning cloth 3 includes an inner ring cloth 31, and the inner ring cloth 31 is opposite to the arched ring portion of the middle awning cloth 2 to form an O-shaped tubular cavity. Figure 2 The inner ring cloth 31 forms a downward arc structure, and the arched ring portion of the middle awning cloth 2 forms an upward arc structure, and the two cooperate to form an O-shaped tubular cavity.

[0038] The combination of the crescent-shaped cavity and the O-shaped tubular cavity makes the bellows windshield structure compact, which improves the sound insulation performance of the bellows and reduces the space requirement for bellows structure installation. At the same time, the outer bellows ring of the structure shields the sewing overlap of the inner bellows ring, improving the overall rainproof and airtight performance of the bellows windshield.

[0039] refer to Figure 3 In some embodiments of the present invention, in order to ensure the looping effect between the inner ring cloth 31 and the middle shed cloth 2, the inner shed cloth 3 further includes a connecting cloth 32, and the inner ring cloth 31 and the middle shed cloth 2 are connected by the connecting cloth 32. The connecting cloth 32 is a vertical connecting portion arranged on the side of the inner ring cloth 31, and the connecting cloth 32 is fitted and connected with the vertical connecting portion of the middle shed cloth 2 to form a closed structure.

[0040] In some embodiments of the utility model, in order to further ensure the loop-closing effect between the inner ring cloth 31 and the middle shed cloth 2, the inner shed cloth 3 includes two side connecting cloths 32, and the two side connecting cloths 32 are respectively fixed to the two ends of the inner ring cloth 31 through the inner layer connecting sewing thread 33, and the ends of the two connecting cloths 32 away from the inner ring cloth 31 are fixedly connected to the middle shed cloth 2 through the inner ring closing sewing thread 5.

[0041] In order to solve the problem of fixing the bellows structure as a whole, some embodiments of the present invention further include two aluminum docking frames 7, and the overlapping ends of the middle shed cloth 2 and the outer shed cloth 1 of the bellows rings at both ends are press-fitted and fixed in the two docking frames 7 respectively.

[0042] In some embodiments of the present invention, the two docking frames 7 are respectively fixedly installed on the body of the train.

[0043] In some embodiments of the utility model, in order to improve the stability of the fixing structure between the middle shed cloth 2 and the outer shed cloth 1, the connection between the middle shed cloth 2 and the outer shed cloth 1 of the same folding ring is fixed by sewing and fixing through the inter-ring closing sewing thread 6. Specifically, the sewing part is located at the end position of the fitting structure of the vertical part of the outer shed cloth 1 and the vertical part of the middle shed cloth 2. In order to protect the connection between the middle shed cloth 2 and the outer shed cloth 1, the inter-ring closing sewing thread 6 is located in the hemming clamp 4. This structure can prevent the connection between the two from being exposed to the outside, reducing the risk of damage.

[0044] Similarly, the overlapping ends of the middle shed cloth 2 and the outer shed cloth 1 of adjacent bellows rings are fixedly connected by an inter-ring closing sewing thread 6 , and the inter-ring closing sewing thread 6 is located in the edge clamp 4 .

[0045] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0046] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A bellows structure, characterized in that: It includes a plurality of edge-binding clips and a bellows body; The bellows body comprises a plurality of bellows rings, and the bellows rings comprise an outer shed cloth, a middle shed cloth and an inner shed cloth; the outer shed cloth and the middle shed cloth are connected to form a first cavity, the inner shed cloth and the middle shed cloth are connected to form a second cavity, and the overlapping ends of the middle shed cloth and the outer shed cloth of adjacent bellows rings are clamped and connected by the edging clamp.

2. The bellows structure according to claim 1, characterized in that: The outer shed cloth and the middle shed cloth are both arched and include an arched ring portion. The arched ring portions of the two are opposite to each other and are combined to form a crescent-shaped cavity.

3. The bellows structure according to claim 1 or 2, characterized in that: The inner shed cloth comprises an inner ring cloth which is arc-shaped and faces the arched ring portion of the middle shed cloth to form an O-shaped cavity.

4. The bellows structure according to claim 3, characterized in that: The inner shed cloth further includes a connecting cloth arranged on the side of the inner ring cloth, and the middle shed cloth further includes a vertical connecting part arranged on the side of the arched ring part, and the connecting cloth of the inner ring cloth is connected to the vertical connecting part of the middle shed cloth.

5. The bellows structure according to claim 4, characterized in that: It further includes two side connecting cloths, which are respectively fixed to the two ends of the inner ring cloth, and the ends of the two connecting cloths away from the inner ring cloth are fixedly connected to the ends of the vertical connecting part of the middle shed cloth away from the arch ring part.

6. The bellows structure according to claim 5, characterized in that: The inner ring cloth and the connecting cloth, and the connecting cloth and the middle shed cloth are all sewn and fixed by sewing thread.

7. The bellows structure according to claim 1, characterized in that: It further comprises two docking frames, and the overlapping ends of the middle shed cloth and the outer shed cloth of the folding shed rings at both ends are respectively press-fitted and fixed in the two docking frames.

8. The bellows structure according to claim 7, characterized in that: The two docking frames are respectively fixedly installed on the car body of the train.

9. The bellows structure according to claim 1, characterized in that: The connection between the middle shed cloth and the outer shed cloth of the same folding shed ring is fixed by sewing thread, and the sewing thread is located in the edge binding clamp.

10. The bellows structure according to claim 1 or 9, characterized in that: The overlapping ends of the middle shed cloth and the outer shed cloth of adjacent bellows rings are fixedly connected by sewing threads, and the sewing threads are located in the edge binding clamp.

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