Sound barrier safety door

Abstract

The invention provides a sound barrier safety door which comprises supporting frames located on the two sides and safety door bodies hinged to the supporting frames, the number of the safety door bodies is at least one, the safety door bodies comprise inner door bodies and outer door bodies, the inner door bodies are rotatably hinged to the supporting frames, the inner door bodies are provided with containing grooves for containing the outer door bodies, and the outer door bodies are arranged in the containing grooves. The outer door can be pushed into the containing groove, an existing safety door is designed to be of an independent structure which can be separated up and down and left and right, when the safety door is blocked or extruded by an obstacle and cannot be opened, one part of the door, especially the outer door, can be pushed into the inner door, an emergency channel is reserved for life, and the door is reasonable in design and convenient to use. The structure is simple and practical, and large-scale popularization and application can be realized.

Description

Technical Field

[0001] The present invention relates to an accessory device of a noise protection device, and more particularly to a safety door for a sound barrier. Background Art

[0002] A sound insulation wall, also known as a sound barrier, is a facility inserted between a sound source and a receiver to cause a significant additional attenuation of sound wave propagation, thereby reducing the noise impact in a certain area where the receiver is located. Such a facility is called a sound barrier. Sound barriers are divided into traffic sound barriers, equipment noise attenuation sound barriers, and industrial boundary sound barriers. Highways and expressways are the places where various types of sound barriers are most used.

[0003] The sound barrier for a bridge expressway is generally designed with an emergency evacuation system, which generally includes an emergency evacuation passage and a safety door. In case of an emergency, the safety door can be directly opened for escape under normal circumstances. However, if the safety door is blocked or jammed by an obstacle, making it impossible to open normally, the evacuation and rescue function of the safety door will lose its effect. Therefore, how to design a safety door that can be opened and closed at any time and can cope with obstacles has become a technical problem to be solved in the industry. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a sound barrier safety door that is easy to open and close, has a stable structure, and can be used for emergency evacuation.

[0005] The technical solution adopted by the present invention to solve the above technical problem is as follows: A sound barrier safety door includes support frames on both sides and a safety door hinged to the support frames. The safety door has at least one leaf. The safety door includes an inner door and an outer door. The inner door is rotatably hinged to the support frame. The inner door is provided with a receiving groove for receiving the outer door, and the outer door can be pushed into the receiving groove.

[0006] The safety door includes an upper side door and a lower side door, and the upper side door and / or the lower side door includes an inner door and an outer door.

[0007] Both the outer door and the inner door are fixed to the ground by bolts.

[0008] The safety door has two leaves, which are respectively hinged to the support frames on both sides. When in the closed state, the two safety doors are fixed to each other by bolts.

[0009] Guide rails are provided in the receiving groove of the outer door, and groove bars are provided on the inner door and are adapted to the guide rails.

[0010] Guide rails are provided in the receiving groove of the inner door, and groove bars are provided on the outer door and are adapted to the guide rails.

[0011] A pulley is also provided between the guide rail and the groove bar.

[0012] There are two or more of the guide rails and two or more of the groove bars.

[0013] The inner door and / or the outer door is a transparent door made of transparent acrylic or glass.

[0014] The beneficial effects of the present invention are as follows: A safety door for a sound barrier provided by the present invention is designed into an independent structure that can be separated up, down, left, and right. When the safety door is blocked or squeezed by an obstacle and cannot be opened, a part of the door, especially the outer door, can be pushed into the inner door to reserve an emergency passage for life. The door is reasonably designed, simple and practical in structure, and can be widely promoted and applied on a large scale. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention applied to a sound barrier; Figure 2 It is a schematic diagram of the overall structure of the embodiment of the present invention; Figure 3 For Figure 2 the sectional view and the enlarged partial structure schematic diagram. Embodiment

[0016] The following further details the embodiments of the present invention with reference to the drawings.

[0017] As Figure 1 、 2, as shown in FIGS. 3, an embodiment of the present invention provides a safety door for a sound barrier. The sound barrier safety door is fixed on a support frame, and the support frame is two columns or a square frame located on both sides. The sound barrier safety door has at least one leaf, which includes an upper door 1 and a lower door 2. The upper door 1 and the lower door 2 may both include an inner door 11 and an outer door 12, or only the upper door includes an inner door 11 and an outer door 12, and the lower door 2 only has an inner door, and the width of this inner door is adapted to the width of the upper door; or only the lower door includes an inner door and an outer door, and the upper door only has an inner door, and the width of this inner door is adapted to the width of the lower door. The inner door 11 is rotatably hinged on the support frame, and the inner door 11 can be rotated and opened to both sides respectively. A receiving groove 4 for receiving the outer door is provided inside the inner door 11, and the outer door 12 can be pushed into this receiving groove 4. In the closed state, the inner door of the lower door 2 is fixed to the ground by a bolt, and the outer door of the lower door is also fixed to the ground by a bolt. When there is only one leaf of the sound barrier safety door, the outer door can be fixed to the support frame by a hook or a lock. When the safety door needs to be opened, when there are no obstacles near the safety door, the bolts of the outer door and the inner door can be pulled out together and pushed inwards or outwards. When the safety door is blocked by obstacles and cannot be pushed outwards or inwards, at this time, the outer door can be pushed into the receiving groove of the inner door to open half of the escape passage. When the lower part of the safety door is completely blocked by obstacles, the upper door can be opened at this time, or the outer door of the upper door can be pushed into the inner door. In this way, although the safety door cannot be fully opened, an emergency passage is left for life.

[0018] When two leaves of the sound barrier safety door are provided, the two safety doors are respectively rotatably hinged on the support frames on both sides. To avoid noise leakage caused by gaps between the doors, as Figure 3 shown, the contact surfaces between the corresponding two outer doors are provided with a concave-convex structure that cooperates with each other, and a tubular rubber strip is filled in the gap of the concave-convex structure. In the closed state, the two safety doors are fixed by bolts. Specifically, the two outer doors are fixed by bolts. When the safety door needs to be opened, only the bolt needs to be pulled out and the two doors are pushed open respectively. In order to push the safety door more labor-saving, pulleys are provided at the lower end of the inner door. When the safety door is blocked by obstacles and cannot be pushed open, the outer door can be pushed into the receiving groove of the inner door. When the lower part of the safety door is completely blocked by obstacles, only the upper door can be opened at this time, or the outer door of the upper door can be pushed into the inner door. Although the passage is relatively narrow, a passage is also reserved for life.

[0019] To ensure smooth pushing and pulling, guide rails are provided in the receiving groove of the inner door, and groove strips that cooperate with the guide rails are provided on the outer door. The guide rails can slide back and forth along the groove strips. To make the pushing and pulling smoother, pulleys are also provided between the guide rails and the groove strips. To make the pushing and pulling safer and more stable, two or more guide rails can be provided, and the corresponding groove strips are two or more. The positions of the guide rails and the groove strips can also be interchanged.

[0020] To improve the observability of the security door and facilitate the observation of the situations inside and outside the security door, both the inner door and the outer door can be selected as transparent doors made of transparent acrylic materials.

[0021] The above-described embodiments are only one of the more preferred specific embodiments of the present invention, and the ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A sound barrier safety door, which comprises support frames on both sides and a safety door hinged to the support frames, the safety door being at least one, characterized in that, The safety door includes an inner door and an outer door. The inner door is rotatably hinged to the support frame. The inner door is provided with a receiving groove for receiving the outer door, and the outer door can be pushed into the receiving groove.

2. The sound barrier safety door according to claim 1, wherein, The safety door includes an upper door and a lower door. The upper door and / or the lower door includes an inner door and an outer door.

3. The acoustic barrier safety door according to claim 1, wherein, Both the outer door and the inner door are fixed to the ground by bolts.

4. The acoustic barrier safety door according to claim 1, characterized in that, There are two safety doors, which are respectively hinged to the support frames on both sides. When in the closed state, the two safety doors are fixed by bolts.

5. The acoustic barrier safety door according to claim 1, characterized in that, A guide rail is provided in the receiving groove of the inner door, and a groove bar matching with the guide rail is provided on the outer door.

6. The sound barrier safety door according to claim 1, characterized in that, A groove bar is provided in the receiving groove of the inner door, and a guide rail matching with the groove bar is provided on the outer door.

7. The acoustic barrier safety door according to claim 5 or 6, characterized in that, A pulley is further provided between the guide rail and the groove bar.

8. The acoustic barrier safety door according to claim 7, wherein There are two or more guide rails, and correspondingly two or more groove bars.

9. The sound barrier safety door according to claim 1, characterized in that, The inner door and / or the outer door is a transparent door made of transparent acrylic or glass.

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