Sound insulation folding shed device for through channel

Abstract

The utility model belongs to the technical field of rail transit equipment, and particularly relates to a sound insulation folding shed device for a through channel, a main body structure comprises shed cloth and a fabric frame for clamping the shed cloth, during manufacturing, inner-layer shed cloth and outer-layer shed cloth which are arranged in a mirror image mode are sewn into the shed cloth, the shed cloth is connected with a vehicle body frame through the fabric frame, the inner-layer shed cloth and the outer-layer shed cloth are both foaming shed cloth, and the inner-layer shed cloth and the outer-layer shed cloth are made of foam. Comprising a fabric layer, a silica gel layer and a silica gel foaming layer, the silica gel layer and the silica gel foaming layer are arranged on the two sides of the fabric layer, fine holes are filled in the silica gel foaming layer, the silica gel foaming layer is similar to sponge and can effectively absorb sound wave energy, after sound enters, air in the holes vibrates and rubs with hole walls, sound energy is converted into heat energy to be consumed, and sound transmission is weakened; compact self-skinning is arranged outside, holes are not communicated with one another, air flow is blocked, sound transmission is reduced, and the sound insulation effect is more obvious; the through passage is simple in structure, the sound insulation performance of the through passage is enhanced on the premise that the light weight requirement of the through passage is met, and the comfort of passengers is improved.

Description

Technical fields:

[0001] This utility model belongs to the technical field of rail transit equipment, specifically relating to a soundproof folding canopy device for through passageways, which can enhance the sound insulation performance of through passageways, reduce in-vehicle noise, and improve train comfort. Background technology:

[0002] A passageway is an internal passageway through which passengers can freely move from one carriage to another in a safe and comfortable manner. Reducing interior noise and improving passenger comfort are new research and development goals. Existing technologies for passageways generally improve sound insulation performance by using a double-layer canopy structure or a double-folded canopy structure, specifically by increasing the thickness or number of canopy layers. For example, Chinese Patent 202421650159.3 discloses a large railway folding canopy windshield with an anti-condensation mechanism, which includes heat-insulating felt, a shielding wave fixing frame, a first fixing screw, a zippered covering tarpaulin, a docking frame, an outer folding canopy, a shielding wave, and a second fixing screw; the inner folding canopy is fixedly connected to the docking frame; the heat-insulating felt is bonded to the inside of the docking frame; the shielding wave fixing frame is fixedly connected to the docking frame by the first fixing screw, and the shielding wave is fixedly connected to the shielding wave fixing frame by the second fixing screw; the zippered covering tarpaulin has a rough-surfaced nylon hook fastener sewn on it, and the shielding wave has a hook-faced nylon hook fastener sewn on it. When the rough-surfaced nylon hook fastener and the hook-faced nylon hook fastener are engaged, they can cover the zipper assembly on the shielding wave; the inner folding canopy is inserted and fixed to the docking frame; the shielding wave fixing frame is L-shaped; and the zipper assembly is sewn onto the shielding wave. Chinese Patent 202420642379.5 discloses a folding canopy structure, including multiple edge-binding clamps and a folding canopy body. The folding canopy body includes multiple folding canopy rings, each ring comprising an outer canopy fabric, a middle canopy fabric, and an inner canopy fabric. The outer and middle canopy fabrics are connected, forming a first cavity, and the inner and middle canopy fabrics are connected, forming a second cavity. The overlapping ends of the middle and outer canopy fabrics of adjacent folding canopy rings are clamped together by edge-binding clamps. Both the outer and middle canopy fabrics are arched and include arched ring portions. These arched ring portions face each other, forming a crescent-shaped cavity. The inner canopy fabric includes an inner ring fabric, which is arc-shaped and faces the arched ring portion of the middle canopy fabric, forming an O-shaped cavity. The inner canopy fabric includes a connecting fabric disposed on the side of the inner ring fabric. The middle canopy fabric further includes a vertical connecting fabric disposed on the side of the arched ring portion. The inner ring fabric is connected to the vertical connecting part of the middle layer of the canopy fabric. It further includes two connecting fabrics on both sides, which are fixed to both ends of the inner ring fabric. The ends of the two connecting fabrics away from the inner ring fabric are fixedly connected to the ends of the vertical connecting parts of the middle layer of the canopy fabric away from the arched ring. The inner ring fabric and the connecting fabric, as well as the connecting fabric and the middle layer of the canopy fabric, are all sewn together and fixed. It further includes two docking frames. The overlapping ends of the middle layer of the canopy fabric and the outer layer of the canopy fabric at both ends are pressed and fixed in the two docking frames. The two docking frames are fixedly installed on the train body. The connection between the middle layer of the canopy fabric and the outer layer of the same folded canopy fabric is sewn together and fixed, and the sewing thread is located in the edge binding clamp. The overlapping ends of the middle layer of the canopy fabric and the outer layer of the canopy fabric of adjacent folded canopy fabrics are fixedly connected by sewing thread, and the sewing thread is located in the edge binding clamp.Chinese Patent 202410211131.8 discloses a folding windshield, including a folding assembly and a pedal structure mounted on a vehicle body. The pedal structure is located above the inner bottom of the folding assembly and includes a movable pedal and two oppositely arranged fixed pedals. The movable pedal is positioned between the two fixed pedals and extends to the bottom of the two fixed pedals. The movable pedal is a telescopic structure. The device also includes a reciprocating support assembly mounted on the vehicle body. The reciprocating support assembly provides a horizontal restoring force for the telescopic movement of the movable pedal. Reciprocating support assemblies are provided on both sides of the movable pedal. The reciprocating support assembly includes a bracket fixed to the vehicle body, and a leaf spring and wheel frame mounted on the bracket. The wheel frame is located between the leaf spring and the movable pedal and is connected to the leaf spring. The leaf spring supports the wheel frame in reciprocating motion on the bracket, thereby providing a restoring force to the movable pedal. The movable pedal is composed of several large H-beam aluminum profiles and several small H-beam aluminum profiles. The large and small H-beam aluminum profiles are arranged alternately. The small H-beam aluminum profiles are inserted into two adjacent large H-beam aluminum profiles, and the small H-beam aluminum profiles slide against two adjacent large H-beam aluminum profiles. The side of the movable pedal closest to the wheel frame is... The system uses a large I-beam aluminum profile, which is fixedly connected to the wheel frame. It also includes a connecting mechanism and a quick-release mechanism. The connecting mechanism fixes the folding canopy assembly to the vehicle body. The side of the folding canopy assembly away from the connecting mechanism is detachably connected to the vehicle body via the quick-release mechanism. The quick-release mechanism includes a transition frame connected to the vehicle body. The folding canopy assembly is equipped with a locking rod mechanism. The opening and closing of the locking rod mechanism allows for the connection and disconnection of the folding canopy assembly and the transition frame. The locking rod mechanism includes a locking rod on the folding canopy assembly, a locking plate on the locking rod, and a drive handle for driving the locking rod to slide longitudinally. The locking rod slides along the height direction of the transition frame. The system includes a locking tongue on the transition frame that works with the locking plate. The drive handle presses down on the locking rod, causing the locking plate to insert into the locking tongue and connect with the transition frame. The locking rod mechanism also includes a fixing pin for fixing the locking rod, a baffle for fixing the locking rod, and a spring sleeved on the fixing pin. The bottom of the spring abuts against the baffle, and the spring is used to reset the locking plate. The connecting mechanism includes a screw frame connected to the folding canopy. The screw frame has several screws for connecting and fixing the screw frame to the vehicle body. Two fixed pedals are fixedly mounted on the vehicle body, and the bottom of both fixed pedals abuts against the upper surface of the movable pedal. This design not only increases the weight of the passageway, failing to meet lightweight requirements, but also increases the mutual pulling force of the canopy fabric when traversing curves, reducing the passageway's curve-traversing capacity.

[0003] Therefore, it is necessary to develop and design a lightweight, sound-insulating, through-passage folding canopy device to solve the above problems. Summary of the Invention:

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and to develop and design a soundproof folding canopy device for through passageways. By improving the sound insulation performance of the folding canopy, the noise inside the vehicle is reduced and the passenger comfort is improved.

[0005] To achieve the above objectives, the main structure of the soundproof folding canopy device for through passageways involved in this utility model includes a canopy cloth and a fabric frame for clamping it. Several rings of canopy cloth are clamped together by several fabric frames and then connected to the vehicle frame.

[0006] The tarpaulin of this utility model has a double-layer structure, including an inner tarpaulin and an outer tarpaulin. The two tarpaulins have the same main structure and are mirror images of each other, with a U-shaped cavity in the middle. Both are composed of a fabric layer and silicone layers and silicone foam layers on both sides, as well as a self-skinning layer on the outside of the silicone foam layer. The two silicone foam layers face each other and face the U-shaped cavity. The interior of the silicone foam layer is filled with tiny pores that can effectively absorb sound wave energy, converting sound energy into heat energy for dissipation. At the same time, the pores are closed-cell structures and do not communicate with each other. The outer self-skinning layer is dense, blocking air flow and reducing sound transmission, resulting in a significant sound insulation effect.

[0007] Compared with the prior art, this utility model sews inner and outer canopies, which are mirrored, into a canopy and connects it to the vehicle frame through a fabric frame. Both the inner and outer canopies are foamed canopies, including a fabric layer and silicone layers and silicone foam layers on both sides. The silicone foam layers are filled with tiny pores, similar to a sponge, which can effectively absorb sound wave energy. When sound enters, the air inside the pores vibrates and rubs against the pore walls, converting the sound energy into heat energy and dissipating it, thus reducing sound propagation. In addition, the pores are closed-cell structures with a dense self-skin on the outside. The pores are not interconnected, blocking airflow and reducing sound transmission, resulting in a more significant sound insulation effect. Its structure is simple, and while meeting the requirements for lightweight passageways, it enhances the sound insulation performance of the passageways and improves passenger comfort. Attached image description:

[0008] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0009] Figure 2 This is an axonometric view of the main structure of this utility model.

[0010] Figure 3 This is a partial schematic diagram of the main structure of this utility model.

[0011] Figure 4 This is a schematic diagram of the main structure of the inner layer of the canopy involved in this utility model.

[0012] Figure 5 This is a schematic diagram of the main structure of the outer canopy of this utility model.

[0013] Figure 6 This is an enlarged schematic diagram of the outer canopy fabric involved in this utility model. Detailed implementation method:

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1:

[0016] This embodiment relates to a main structure of a soundproof folding canopy device for a through passageway, as shown below. Figure 1-3 As shown, the structure includes a canopy 1, fabric frames 2, and a vehicle frame 3. The five-ring canopy 1 is assembled into a whole by four fabric frames 2 and then connected to the vehicle frame 3 on both sides. The canopy 1 is a double-layer structure made of foamed canopy fabric, including an inner canopy 11 and an outer canopy 12. The main structure of the inner canopy 11 and the outer canopy 12 is the same, both including a fabric layer 13, a silicone layer 14, a silicone foam layer 15, and a self-skinning layer 16. The silicone layer 14 and the silicone foam layer 15 are respectively provided on both sides of the fabric layer 13, and the self-skinning layer 16 is provided on the outer side of the silicone foam layer 15.

[0017] Specifically, the main structure of the inner layer of fabric 11 is as follows: Figure 4 As shown, from top to bottom, the layers are: self-skinning layer 16, silicone foam layer 15, fabric layer 13, and silicone layer 14.

[0018] The main structure of the outer layer of canopy 12 is as follows Figure 5-6 As shown, from top to bottom, the layers are silicone layer 14, fabric layer 13, silicone foam layer 15, and self-skinning layer 16.

[0019] When sewing the tarpaulin 1 involved in this embodiment:

[0020] First, sew the foamed side of the foamed tent fabric towards the outside of the U-shape to form the inner tent fabric 11;

[0021] Then, the foamed side of the foamed tent fabric is sewn towards the inside of the U-shape to form the outer tent fabric 12;

[0022] Finally, use fabric frame 2 to clamp the inner layer 11 and the outer layer 12 together.

[0023] The thickness of the silicone layer 14 and silicone foam layer 15 involved in this embodiment is determined according to the sound insulation requirements. According to the test, the silicone foam tent fabric of the same thickness is about 30% lighter than the conventional tent fabric. The conventional tent fabric has a fabric layer in the middle and adhesive layers on both sides. The surface of the adhesive layer is smooth or frosted.

Claims

1. A soundproof folding canopy device for a through passageway, characterized in that, The main structure includes a canopy, which is a double-layer structure. Each layer consists of a fabric layer and silicone layers and silicone foam layers on both sides, as well as a self-skinning layer on the outside of the silicone foam layer. The two silicone foam layers are opposite each other.

2. The soundproof folding canopy device for a through passageway according to claim 1, characterized in that, The double-layer structure of the canopy consists of an inner canopy and an outer canopy, both with identical main structures, mirrored, and with a U-shaped cavity in the middle.

3. The soundproof folding canopy device for a through passageway according to claim 2, characterized in that, The main structure of the inner layer of the canopy, from top to bottom, consists of a self-skinning layer, a silicone foam layer, a fabric layer, and a silicone layer.

4. The soundproof folding canopy device for a through passageway according to claim 2, characterized in that, The main structure of the outer canopy, from top to bottom, consists of a silicone layer, a fabric layer, a silicone foam layer, and a self-skinning layer.

5. The soundproof folding canopy device for a passageway according to any one of claims 1-4, characterized in that, The main structure also includes a fabric frame for holding the tarpaulin.

6. The soundproof folding canopy device for a through passageway according to claim 5, characterized in that, Several rings of fabric are clamped together by several fabric frames and then connected to the vehicle body frame.

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