Movable disaster prevention escape door in tunnel

Abstract

The utility model discloses a movable disaster-prevention escape door in tunnel, which comprises a door frame, a circular turntable and a telescopic door, wherein the door frame is discoid, the outer side of the door frame is provided with a protective panel, the protective panel is provided with symmetrical lower carry and upper carry, the circular turntable is rotatably arranged on the door frame and is provided with a door opening, the telescopic door is rotatably connected in the door opening and comprises a rotating section, an intermediate telescopic section and a bottom telescopic section, the intermediate telescopic section is arranged in the rotating section, and the bottom telescopic section is arranged in the intermediate telescopic section. By rotating the circular turntable, the position of the telescopic door is adjusted to a position with smaller blockage or less external obstruction, the trapped personnel can operate according to the instructions of the rescuers, synchronous rescue inside and outside is realized, rescue time is saved when breaking the door, and the telescopic door is rotatably telescopic, so that the operation personnel can quickly complete the door closing operation by entering the moving frame when disaster occurs.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of tunnel construction safety technology, and more specifically, relate to a movable disaster prevention and escape door in a tunnel. Background Technology

[0002] With the development of transportation, and constrained by geographical conditions, urban subways, mountain railways, and underwater tunnels have become hotspots in transportation construction. These projects all require tunnel excavation, which presents both natural disasters and construction risks, posing significant challenges to personnel and equipment safety. The core function of an escape door is to effectively resist external impacts and prevent the spread of hazards through physical isolation and dynamic control, providing a safe passage for personnel evacuation in emergencies.

[0003] Currently, escape doors in existing technologies are designed to meet the physical protection needs of complex working conditions, with high-strength materials and modular assembly as core features. The door panels are typically made of carbon steel or stainless steel, and welded together with channel steel to form a grid-like frame to enhance overall bending and impact resistance. To adapt to dynamic changes in the construction environment, the doors often employ sliding or lifting hinge structures. For example, single-hinge hinges allow the door panel to rotate on a fixed axis, while double-hinge hinges achieve vertical rotation and horizontal movement of the door panel through upper and lower double contact points, facilitating rapid opening and closing in confined spaces. Annular rubber pads or trapezoidal sealing grooves are embedded at the connection between the door frame and the door panel, and a double-ended interlocking or concealed interlocking mechanism ensures airtightness and watertightness when the door is closed, preventing safety hazards caused by water seepage or dust diffusion in the construction area.

[0004] However, existing escape doors cannot close quickly during disasters, potentially delaying escape. Furthermore, after evacuation, external forces such as falling rocks can deform the doors, rendering them unusable and forcing rescuers to wait for outside personnel to open them. This creates psychological stress for trapped individuals and prolongs rescue efforts due to one-sided rescue attempts. Therefore, a movable disaster escape door for tunnels is needed that allows for rapid closure while preventing deformation that could impede opening and hinder rescue efficiency. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a movable disaster escape door for tunnels. This door isolates disaster zones within tunnels, providing protection for workers. A circular turntable is rotatably mounted within the door frame to adjust the position of the opening, allowing the retractable door to rotate and find a convenient opening position after closing. By rotating the turntable, the retractable door can be positioned where there are fewer obstructions or external barriers. Workers inside the mobile frame can operate according to the instructions of rescue personnel, enabling simultaneous rescue from both inside and outside, avoiding wasted rescue time when breaking down the door. Furthermore, the retractable door is designed for rotation and extension, allowing workers to quickly close the door upon entering the mobile frame in the event of a disaster, preventing delays that could threaten the safety of those inside.

[0006] To achieve the above objectives, this utility model provides a movable disaster escape door for tunnels, comprising: a door frame, a circular turntable, and a telescopic door;

[0007] The door frame is disc-shaped, and a protective panel is provided on the outer side of the door frame. The protective panel has symmetrical lower and upper entry points.

[0008] The circular turntable is rotatably mounted on the door frame and has a door opening hole.

[0009] The telescopic gate is rotatably connected to the door opening and includes a rotating section, a middle telescopic section, and a bottom telescopic section. The middle telescopic section is located in the rotating section, and the bottom telescopic section is located in the middle telescopic section.

[0010] Furthermore, a retaining ring is provided on the inner side of the inner ring of the door frame, and multiple through holes are evenly opened on the upper edge of the retaining ring as first fixing holes.

[0011] The protective panel protrudes outward and has a gap between it and the retaining ring. A circumferential mounting groove is provided in the gap.

[0012] Furthermore, the circular turntable is disposed in the mounting groove of the door frame and rotates in the mounting groove;

[0013] The inner side of the circular turntable is provided with a second fixing hole at a position corresponding to the first fixing hole. The second fixing hole is a threaded hole.

[0014] Furthermore, the circular turntable has a rectangular opening, with an upper baffle on the outer side of the top of the opening and side baffles on the inner sides. Both the side baffles and the upper baffle are integrally formed with the circular turntable.

[0015] Circular rotating holes are also provided on the inner walls on both sides of the door opening, and the rotating holes are located in the middle of the side baffle and the top baffle.

[0016] Furthermore, the rotating section is located at the top, and rotating shafts extend outward on both sides of its outer side. These rotating shafts are located in rotating holes, allowing the rotating section to rotate along the rotating shafts.

[0017] The thickness of the rotating section is the same as the horizontal distance between the upper baffle and the side baffle. When its rotation is in the vertical direction, both sides just come into contact with the upper baffle and the side baffle respectively.

[0018] The bottom end of the rotating section is hollowed out to form two opposing rotating section side plates, and the lower edge of the rotating section side plates is provided with a first stop block facing inward.

[0019] Furthermore, the intermediate telescopic section is located between the two rotating section side plates, and its thickness is the same as the distance between the two rotating section side plates.

[0020] The middle telescopic section is also hollowed out in the middle, forming two telescopic section side plates facing each other. The outer side of the telescopic section side plates on both sides is provided with a first sliding groove corresponding to the first stop block. The top of the first sliding groove does not penetrate to limit the movement. The lower edge of the telescopic section side plate is provided with a second stop block facing inward.

[0021] Furthermore, the bottom telescopic section is located between the telescopic section side plates on both sides, and its thickness is the same as the distance between the telescopic section side plates on both sides. The two sides of the bottom telescopic section are provided with second sliding grooves at positions corresponding to the second stop, and the top of the second sliding groove does not penetrate through to limit the movement.

[0022] The bottom end of the telescopic section is also provided with a lower edge plate extending to both sides, which limits the middle telescopic section.

[0023] Furthermore, two spring blocks are provided on the lower edge plate of the bottom telescopic section at the corresponding positions of the side baffle. The head end of the spring block is round, and the tail end is located in the lower edge plate. They are connected to the lower edge plate by a spring.

[0024] Furthermore, a circular hole is provided at the corresponding position of the rotating segment and the spring block, through which the spring block passes.

[0025] Furthermore, a support rod is provided between the rotating section and the upper baffle.

[0026] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0027] 1. This utility model's disaster escape door incorporates a circular turntable mounted within the door frame to adjust the position of the opening, allowing the retractable door to rotate and find a convenient opening position after closing. By rotating the turntable, the retractable door can be positioned where there are fewer obstructions or external barriers. Personnel entering the shelter can then operate according to the instructions of rescue personnel, enabling simultaneous rescue from both inside and outside. This avoids wasting rescue time when attempting to break down the door. Furthermore, the retractable door is designed for rotation and extension, allowing personnel entering the shelter to quickly close the door during a disaster, preventing delays that could threaten the safety of those inside.

[0028] 2. In the case of the disaster escape door of this utility model, during the rescue, since heavy objects such as rocks will inevitably be concentrated at the bottom during the collapse, while there are relatively fewer rocks at the top, and it is easier to clear them. At this time, by rotating the circular turntable to make the door opening align with the position of the upper position, the door can be opened and the person can be rescued. This significantly simplifies the rescue time and avoids psychological barriers or prolonged physical injuries to the rescued person.

[0029] 3. In the disaster prevention and escape door of this utility model, the rotating section rotates along the rotating axis, the middle telescopic section slides in the rotating section, and the bottom telescopic section slides in the middle telescopic section to realize the opening and closing of the telescopic door.

[0030] 4. In the disaster escape door of this utility model, when the telescopic door is retracted, the bottom telescopic section is limited by a spring block to ensure that it is completely retracted in the rotating section and does not slide; when the telescopic door is closed, the rotating section rotates and collides with the side baffle to squeeze the spring block, so that the bottom telescopic section and the middle telescopic section extend and close under their own weight. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure and installation of a movable disaster escape door in a tunnel, according to an embodiment of this utility model.

[0032] Figure 2 This is a schematic diagram of the structure and opening of a movable disaster escape door in a tunnel, according to an embodiment of this utility model.

[0033] Figure 3 This is a structural sectional view of a movable disaster escape door in a tunnel according to an embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of the structure of a movable disaster escape door in a tunnel according to an embodiment of the present invention.

[0035] Figure 5 This is a structural sectional view of a movable disaster escape door in a tunnel according to an embodiment of the present invention.

[0036] Figure 6This is a schematic diagram of the door frame structure of a movable disaster escape door in a tunnel, according to an embodiment of the present utility model.

[0037] Figure 7 This is a cross-sectional view of the door frame structure of a movable disaster escape door in a tunnel according to an embodiment of the present utility model;

[0038] Figure 8 This is a schematic diagram of a circular turntable structure for a movable disaster escape door in a tunnel, according to an embodiment of the present invention.

[0039] Figure 9 This is a schematic diagram of the retractable structure of a movable disaster escape door in a tunnel, according to an embodiment of the present invention.

[0040] Figure 10 This is a schematic diagram showing the unfolded structure of a telescopic door for a movable disaster escape door in a tunnel, according to an embodiment of this utility model.

[0041] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-moving frame, 2-door frame, 201-fixing groove, 202-first fixing hole, 203-protective panel, 204-lower entry, 205-upper entry, 3-circular turntable, 301-door opening hole, 302-second fixing hole, 303-upper baffle, 304-side baffle, 305-limiting groove, 306-rotating hole, 4-telescopic door, 401-rotating section, 402-middle telescopic section, 403-bottom telescopic section, 404-rotating shaft, 405-spring block. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figure 1-10As shown, this utility model embodiment provides a movable disaster escape door for tunnels, including a door frame 2 and a circular turntable 3 disposed on the door frame 2. The circular turntable 3 has an opening hole 301, and a telescopic door 4 is disposed within the opening hole 301. The telescopic door 4 is rotatably connected within the opening hole 301, and the door entrance is opened and closed by rotation and extension. The circular turntable 3 is rotatably disposed within the door frame 2 to adjust the position of the opening hole 301, so that the telescopic door 4 can rotate to find a convenient position for opening after being closed. By using the escape door of this utility model, the disaster area is isolated in the tunnel, providing protection for the workers. By rotating the circular turntable 3, the position of the telescopic door 4 can be adjusted to a position with less obstruction or fewer external obstacles. Workers entering the escape door can operate according to the instructions of the rescuers, realizing simultaneous rescue from inside and outside, avoiding wasting rescue time when breaking down the door. Moreover, the telescopic door 4 is designed to rotate and telescopic, so that when a disaster occurs, workers can quickly close the door after entering the escape door, avoiding the threat to the safety of the people inside the cabin if the door is not closed in time.

[0044] It is understood that the disaster escape door of this utility model is installed on a movable frame 1, which has a circular doorway. To facilitate the movement of the movable frame 1, multiple sets of wheels are provided at the bottom of the movable frame 1. By driving these wheels, the movable frame 1 can be moved in the tunnel to ensure safety at the construction site.

[0045] The door frame 2 is disc-shaped, with a fixing groove 201 on the outer ring serving as a fixing point, enclosing the edge of the door opening on the movable frame 1. The edge of the door opening is cast in post-cast to form a fixed connection with the fixing groove 201. A retaining ring is provided on the inner side of the inner ring of the door frame 2. Multiple through holes are evenly distributed along the circumference of this retaining ring, serving as first fixing holes 202. A protective panel 203 is provided on the outer side of the door frame 2. This protective panel 203 protrudes outwards, leaving a gap between it and the retaining ring. A circumferential mounting groove is provided in this gap. Two rectangular holes are provided on both the upper and lower sides of the protective panel 203, serving as a lower entry point 204 and an upper entry point 205, respectively.

[0046] The circular turntable 3 is disposed in the mounting groove of the door frame 2 and rotates within the mounting groove. A second fixing hole 302 is provided on the inner side of the circular turntable 3, corresponding to the first fixing hole 202. The second fixing hole 302 is a threaded hole, and a bolt is provided in the first fixing hole 202 to connect with the second fixing hole 302, thereby temporarily fixing the circular turntable 3. A rectangular opening 301 is formed on the circular turntable 3. An upper baffle 303 is provided on the outer side of the top of the opening 301, and side baffles 304 are provided on the inner sides. Both the side baffles 304 and the upper baffle 303 are integrally formed with the circular turntable 3. Circular rotating holes 306 are also formed on the inner walls of both sides of the opening 301, and the rotating holes 306 are located in the middle of the side baffles 304 and the upper baffle 303.

[0047] As a further preferred embodiment, a cavity is reserved between the circular turntable 3 and the protective panel 203 as a vibration damping cavity. When the collapse occurs, the rocks fall onto the protective panel 203, which provides protection for the circular turntable 3 to prevent it from being deformed and causing the telescopic gate 4 to be unable to open, thus affecting the efficiency of the rescue.

[0048] Under normal circumstances, bolts are inserted into the first fixing hole 202 and connected to the second fixing hole 302 to fix the circular turntable 3 to the door frame 2. At this time, the opening hole 301 corresponds to the lower entry position 204, allowing workers to smoothly and quickly enter the mobile frame 1. After the workers enter the mobile frame 1 and close the telescopic door 4, the bolts are removed, allowing the circular turntable 3 to rotate on the door frame 2. Before rescue, the door frame 2 is rotated into the vibration damping cavity, and the telescopic door 4 is protected by the protective panel 203. During rescue, since heavy objects such as rocks will inevitably concentrate at the bottom during the collapse, while there are relatively fewer rocks at the top, making clearing them easier, rotating the circular turntable 3 to align the opening hole 301 with the upper entry position 205 allows the door to be opened for rescue, significantly simplifying the rescue time and avoiding psychological trauma or prolonged physical injury to the rescued personnel.

[0049] As a further preferred embodiment, to facilitate operation by personnel inside the mobile frame 1, multiple handles are provided along the inner edge of the circular turntable 3, and the rescued personnel inside the mobile frame 1 can rotate the circular turntable 3 by using these handles.

[0050] The telescopic gate 4 is divided into a rotating section 401, a middle telescopic section 402, and a bottom telescopic section 403. The rotating section 401 is located at the top, and its outer sides are provided with rotating shafts 404 extending outward. The rotating shafts 404 are located in rotating holes 306, allowing the rotating section 401 to rotate along the rotating shafts 404. The thickness of the rotating section 401 is the same as the horizontal distance between the upper baffle 303 and the side baffle 304. When its rotation is in the vertical direction, its two sides are in contact with the upper baffle 303 and the side baffle 304, respectively. The bottom end of the rotating section 401 is hollowed out to form two opposing rotating section side plates. The lower edge of the rotating section side plates is provided with a first stop block facing inward. The intermediate telescopic section 402 is located between the two rotating section side plates, and its thickness is the same as the distance between the two rotating section side plates. The intermediate telescopic section 402 is also hollow in the middle, forming two opposing telescopic section side plates. A first sliding groove is provided on the outer side of the two telescopic section side plates at a position corresponding to the first stop. The top of the first sliding groove is not through-hole for limiting movement. A second stop is provided on the lower edge of the telescopic section side plate facing inward. The bottom telescopic section 403 is located between the two telescopic section side plates, and its thickness is the same as the distance between the two telescopic section side plates. A second sliding groove is provided on both sides of the bottom telescopic section 403 at a position corresponding to the second stop. The top of the second sliding groove is not through-hole for limiting movement. A lower edge plate extends from the bottom end of the bottom telescopic section 403 to both sides, and this lower edge plate limits the movement of the intermediate telescopic section 402.

[0051] It is understood that the rotating section 401 rotates along the rotating shaft 404, the intermediate telescopic section 402 slides in the rotating section 401, and the bottom telescopic section 403 slides in the intermediate telescopic section 402 to realize the opening and closing of the telescopic gate 4.

[0052] As a further preferred embodiment, two spring blocks 405 are provided on the lower edge plate of the bottom telescopic section 403 at positions corresponding to the side baffle 304. The head end of each spring block 405 is round, and the tail end is located in the lower edge plate. They are connected to the lower edge plate by a spring, and pressing the spring block 405 allows it to retract into the lower edge plate. A circular hole is provided on the rotating section 401 at the corresponding position of the spring block 405, through which the spring block 405 protrudes. When the telescopic gate 4 retracts, the spring block 405 limits the bottom telescopic section 403, ensuring that it is completely retracted into the rotating section 401 and does not slide. When the telescopic gate 4 closes, the rotating section 401 rotates and collides with the side baffle 304, pressing the spring block 405, causing the bottom telescopic section 403 and the middle telescopic section 402 to extend and close under their own weight.

[0053] As a further preferred embodiment, a support rod is also provided between the rotating section 401 and the upper baffle 303. After the door is opened, the telescopic door 4 is supported by the support rod. When it is necessary to close the door, the support rod can be removed and the telescopic door 4 can be closed directly under its own weight.

[0054] As a further preferred embodiment, the bottom side of the opening hole 301 of the circular turntable 3 is also provided with a limiting groove 305, so that when the door is closed, the lower edge plate of the bottom telescopic section 403 falls into the limiting groove 305.

[0055] As a further preferred option, when it is necessary to increase the sealing performance, sealing gaskets can be provided on the limiting groove 305, the upper baffle 303 and the side baffle 304, and a seal can be formed by the compression of the telescopic door 4.

[0056] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A movable disaster escape door for tunnels, characterized in that, include: Door frame (2), circular turntable (3) and retractable gate (4); The door frame (2) is disc-shaped, and a protective panel (203) is provided on the outside of the door frame (2). The protective panel (203) is provided with symmetrical lower entry (204) and upper entry (205). The circular turntable (3) is rotatably mounted on the door frame (2), and has a door opening hole (301) on it. The telescopic gate (4) is rotatably connected to the door opening (301) and includes a rotating section (401), a middle telescopic section (402) and a bottom telescopic section (403). The middle telescopic section (402) is located in the rotating section (401) and the bottom telescopic section (403) is located in the middle telescopic section (402).

2. The movable disaster escape door in a tunnel according to claim 1, characterized in that, The inner side of the inner ring of the door frame (2) is provided with a retaining ring, and multiple through holes are evenly opened along the circumferential direction on the retaining ring as the first fixing hole (202). The protective panel (203) protrudes outward and has a gap between it and the retaining ring. A circumferential mounting groove is provided in the gap.

3. A movable disaster escape door for tunnels according to claim 2, characterized in that, The circular turntable (3) is located in the mounting groove of the door frame (2) and rotates in the mounting groove; The inner side of the circular turntable (3) is provided with a second fixing hole (302) corresponding to the first fixing hole (202), and the second fixing hole (302) is a threaded hole.

4. A movable disaster escape door for tunnels according to claim 2, characterized in that, The circular turntable (3) has a rectangular opening (301). The top of the opening (301) is provided with an upper baffle (303) on the outer side and side baffles (304) on the inner side. The side baffles (304) and the upper baffles (303) are integrally formed with the circular turntable (3). The inner walls on both sides of the door opening (301) are also provided with circular rotating holes (306), which are located in the middle of the side baffle (304) and the upper baffle (303).

5. A movable disaster escape door for tunnels according to any one of claims 1-4, characterized in that, The rotating section (401) is located at the top end, and rotating shafts (404) extend outward on both sides of its outer side. The rotating shafts (404) are located in the rotating hole (306) so that the rotating section (401) can rotate along the rotating shafts (404). The thickness of the rotating section (401) is the same as the horizontal distance between the upper baffle (303) and the side baffle (304). When its rotation is in the vertical direction, both sides are in contact with the upper baffle (303) and the side baffle (304) respectively. The bottom end of the rotating section (401) is hollowed out to form two opposing rotating section side plates, and the lower edge of the rotating section side plate is provided with a first stop block facing inward.

6. A movable disaster escape door for tunnels according to claim 5, characterized in that, The intermediate telescopic section (402) is located between the two rotating section side plates, and its thickness is the same as the distance between the two rotating section side plates; The intermediate telescopic section (402) is also hollowed out in the middle, forming two telescopic section side plates facing each other. The outer side of the telescopic section side plates on both sides is provided with a first sliding groove corresponding to the first stop block. The top of the first sliding groove does not penetrate to limit the movement. The lower edge of the telescopic section side plate is provided with a second stop block facing inward.

7. A movable disaster escape door for tunnels according to claim 6, characterized in that, The bottom telescopic section (403) is located between the telescopic section side plates on both sides, and its thickness is the same as the distance between the telescopic section side plates on both sides. The bottom telescopic section (403) has a second sliding groove on both sides corresponding to the second stop block. The top of the second sliding groove does not penetrate to limit the movement. The bottom end of the telescopic section (403) is also provided with a lower edge plate extending to both sides, which limits the middle telescopic section (402).

8. A movable disaster escape door for tunnels according to claim 7, characterized in that, Two spring blocks (405) are provided on the lower edge plate of the bottom telescopic section (403) at the corresponding position of the side baffle (304). The head end of the spring block (405) is round, and the tail end is located in the lower edge plate. It is connected to the lower edge plate by a spring.

9. A movable disaster escape door for tunnels according to claim 8, characterized in that, The rotating section (401) has a circular hole at the corresponding position of the spring block (405), and the spring block (405) passes through the circular hole.

10. A movable disaster escape door for tunnels according to claim 9, characterized in that, A support rod is also provided between the rotating section (401) and the upper baffle (303).

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