Automatic rainproof device for roof rescue helipad elevator shaft

Abstract

The utility model relates to a rainproof device, in particular to an automatic rainproof device for a roof rescue helipad elevator shaft, which comprises a mounting frame fixedly mounted on an elevator shaft door frame. The protective shell is mounted on the frame; the protective shell is rotationally provided with a folding and unfolding rotating shaft; a plurality of groups of door curtain plates which are mutually hinged are arranged on the protective shell; one door curtain plate is rotationally hinged to the folding and unfolding rotating shaft; a driving structure is arranged on the protective shell; the driving structure can drive the folding and unfolding rotating shaft to rotate so as to unfold or fold the door curtain plate; therefore, the elevator shaft is closed or opened; after the driving structure stops acting, rotation of the folding and unfolding rotating shaft can be limited; a control box for controlling the driving structure to act according to weather conditions is arranged on the mounting frame; an emergency structure is further arranged on the mounting frame; the emergency structure can relieve the limitation of the driving structure on the folding and unfolding rotating shaft; and through the arrangement of the control box, the practicability of the rainproof device can be effectively improved, and the situation that rescue time is wasted can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to a rainproof device, specifically an automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad. Background Technology

[0002] More and more top-tier comprehensive medical building projects in China are installing rapid rescue helicopter landing pads on their rooftops as quick life-saving access routes. Essential rescue supplies are transported to the rooftop helipad via elevators, and patients are then transported to the hospital, thus accelerating the rescue process. A sealing device is typically installed between the elevator shaft and the helipad to protect the elevator doors and the helicopter; when a transport route is needed, the control room issues an opening command.

[0003] Common enclosure devices include drive mechanisms, retractable shafts, and roller shutters. In operation, the rotation of a motor drives the retractable shaft, which in turn causes the roller shutter to retract or release. This achieves the purpose of opening or closing the elevator shaft.

[0004] Because the start switch of common sealing devices is located on the elevator shaft door frame (connected to the drive structure), it needs to be operated manually. That is, when medical staff arrive at the roller shutter door, they have to manually press the start switch to open the roller shutter door. In the case of a rescue where every second counts, this greatly wastes precious rescue time and is not conducive to achieving rapid rescue. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic rainproof device for elevator shafts of rooftop rescue helicopter landing pads includes a mounting frame fixedly installed on the elevator shaft door frame; and a protective shell on the mounting frame.

[0008] The protective shell is rotatably mounted with a retraction shaft; the protective shell is provided with multiple sets of door curtain panels that are hinged to each other; one of the door curtain panels is rotatably hinged to the retraction shaft.

[0009] The protective shell is provided with a drive structure; the drive structure can drive the retractable shaft to rotate, so as to unfold or retract the door curtain panel; thereby closing or opening the elevator shaft; and after the drive structure stops operating, it can restrict the rotation of the retractable shaft.

[0010] The mounting frame is equipped with a control box for controlling the operation of the drive structure according to weather conditions;

[0011] The mounting frame is also equipped with an emergency structure; the emergency structure can release the restriction of the drive structure on the extension and retraction shaft.

[0012] The automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad described above includes: a drive structure comprising a motor fixedly mounted on the protective shell; a worm gear fixedly mounted on the output end of the motor; a first sleeve rotatably mounted on the protective shell; a worm wheel meshing with the worm gear fixedly mounted on the first sleeve; a drive shaft slidably mounted on the retracting shaft; and the drive shaft slidingly engaging with the first sleeve.

[0013] The automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad, as described above, comprises: an emergency structure including a conical column fixedly mounted on the drive shaft; a fixed column fixedly mounted on the protective shell; a connecting rod rotatably mounted on the fixed column; one end of the connecting rod engaging with the conical column; multiple sets of third tooth blocks fixedly mounted on the other end of the connecting rod; a gear rotatably mounted on the mounting frame; a sliding rod slidably fitted within the mounting frame; multiple sets of first and second tooth blocks fixedly mounted on the sliding rod; multiple sets of first tooth blocks meshing with the gear; multiple sets of second tooth blocks meshing with multiple sets of third tooth blocks; a return spring provided on the conical column; and both ends of the return spring abutting against the conical column and the protective shell, respectively.

[0014] As described above, the automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad includes two sets of symmetrical guide rails fixedly installed on the mounting frame; and rollers that roll in cooperation with the guide rails are rotatably installed on the hinged ends of the two door curtain panels.

[0015] As described above, the automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad includes: a waterproof strip fixedly installed at the lower end of the door curtain panel; and a portion of the waterproof strip covers the upper end of the other door curtain panel.

[0016] As described above, the automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad has the following features: a drainage ditch is provided at the lower end of the mounting frame; and a drainage hole is provided on the mounting frame; one end of the drainage hole is connected to the drainage ditch; and the other end is connected to the drainage pipe.

[0017] The automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad, as described above, has a knob fixedly installed on the gear.

[0018] The automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad, as described above:

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: the setting of the control box can effectively improve the practicality of the rainproof device and effectively avoid wasting rescue time; when the components inside the control box are damaged or there is an unexpected power outage, the user can release the restriction of the drive structure on the retraction shaft through the emergency structure, so as to freely control the opening and closing state of the elevator shaft according to actual needs, thereby avoiding the elevator shaft being unable to open and close normally in case of an accident; since the emergency device relies on mechanical transmission to operate, it does not require external power supply, thus effectively ensuring the normal use of the device under harsh conditions such as long-term exposure to sun and rain. Attached Figure Description

[0020] Figure 1 A schematic diagram of the automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad.

[0021] Figure 2 A schematic diagram of the structure for installing the frame in the automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad.

[0022] Figure 3 for Figure 2 A structural schematic diagram from a cross-sectional perspective.

[0023] Figure 4 A schematic diagram of the drive structure in the automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad.

[0024] Figure 5 This is a structural diagram from the perspective of an explosion (4).

[0025] Figure 6 A schematic diagram of the retractable and extendable rotating shaft in the automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad.

[0026] Figure 7 for Figure 6 A schematic diagram of the structure at point A in the middle.

[0027] Figure 8 A schematic diagram of the conical column structure in the automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad.

[0028] Figure 9 A schematic diagram of the door curtain panel in the automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad.

[0029] In the diagram: 1. Mounting frame; 101. Drainage trench; 102. Drainage hole;

[0030] 2. Protective casing;

[0031] 3. Folding / unfolding hinge;

[0032] 4. Electric motor;

[0033] 5. Worm gear;

[0034] 6. Worm gear;

[0035] 7. First sleeve;

[0036] 8. Drive shaft;

[0037] 9. Conical column;

[0038] 10. Door curtain panel; 1001. Rollers;

[0039] 11. Waterproof strip;

[0040] 12. Guide rail;

[0041] 13. Knob;

[0042] 14. Gear;

[0043] 15. Slide bar; 1501. First toothed block; 1502. Second toothed block;

[0044] 16. Fixed column;

[0045] 17. Connecting rod; 1701. Third tooth block;

[0046] 18. Return spring;

[0047] 19. Control box. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0049] Please see Figures 1-9 As an embodiment of this utility model, the automatic rainproof device for the elevator shaft of the rooftop rescue helicopter landing pad includes an installation frame 1 fixedly installed on the elevator shaft door frame; and a protective shell 2 on the installation frame 1.

[0050] The protective shell 2 is rotatably mounted with a retraction shaft 3; the protective shell 2 is provided with multiple sets of door curtain panels 10 that are hinged to each other; one of the door curtain panels 10 is rotatably hinged to the retraction shaft 3.

[0051] The protective shell 2 is provided with a drive structure; the drive structure can drive the retractable shaft 3 to rotate, so as to unfold or retract the door curtain panel 10; thereby closing or opening the elevator shaft; and after the drive structure stops operating, it can restrict the rotation of the retractable shaft 3.

[0052] The mounting frame 1 is equipped with a control box 19 for controlling the operation of the drive structure according to weather conditions;

[0053] The mounting frame 1 is also provided with an emergency structure; the emergency structure can release the restriction of the drive structure on the retraction and extension shaft 3.

[0054] In this embodiment, the mounting frame 1 is fixedly connected to the elevator shaft door frame, and the connection point is waterproofed.

[0055] The control box 19 is equipped with a sensing device and an electronic control device. The sensing device can sense the outdoor air conditions and send the sensing results to the central control unit. The central control unit will send an action signal to the electronic control device based on the sensing results of the sensing device.

[0056] When the sensor detects that it is not raining outdoors, the central control unit sends a working signal to the electronic control unit. At this time, the electronic control unit drives the drive structure to rotate the retractable shaft 3 in the forward direction. When the retractable shaft 3 rotates in the forward direction, it rolls up the door curtain panel 10, thereby gradually opening the originally closed elevator shaft. When the elevator shaft is fully opened, the electronic control unit stops operating, which in turn stops the drive structure. At this time, the drive structure restricts the retractable shaft 3 to prevent it from rotating in the reverse direction and releasing the door curtain panel 10 due to external factors such as gravity, thus avoiding the accidental closure of the elevator shaft.

[0057] When the sensor detects rainy weather outdoors, the central control unit sends a working signal to the electronic control unit. At this time, the electronic control unit drives the drive structure to rotate in the opposite direction, thereby causing the retractable shaft 3 to rotate in the opposite direction. When the retractable shaft 3 rotates in the opposite direction, it releases the door curtain panel 10, thereby gradually closing the elevator shaft to prevent rainwater from entering the elevator shaft. When the elevator shaft is completely closed, the electronic control unit stops operating, thereby causing the drive structure to stop operating, and at this time the drive structure restricts the retractable shaft 3. This is to prevent external interference from causing the closed elevator shaft to open and allowing rainwater to flow back into the elevator shaft.

[0058] The control box 19 is equipped with a remote control device, which allows users to freely control the opening and closing status of the elevator shaft as needed.

[0059] By setting up the control box 19, the practicality of the rainproof device can be effectively improved, and the situation of wasting rescue time can be effectively avoided.

[0060] When components inside control box 19 are damaged or there is an unexpected power outage, the user can release the restriction of the drive structure on the retractable shaft 3 through the emergency structure, thereby freely controlling the opening and closing state of the elevator shaft according to actual needs, so as to avoid the elevator shaft being unable to open and close normally in case of an accident.

[0061] Because the emergency device operates through mechanical transmission and does not require external power, it can effectively ensure normal use under harsh conditions such as prolonged exposure to sunlight and rain.

[0062] As a further embodiment of this utility model, the drive structure includes a motor 4 fixedly mounted on the protective shell 2; a worm gear 5 fixedly mounted on the output end of the motor 4; a first sleeve 7 rotatably mounted on the protective shell 2; a worm wheel 6 meshing with the worm gear 5 fixedly mounted on the first sleeve 7; a drive shaft 8 slidably mounted on the retracting shaft 3; and the drive shaft 8 slidably engages with the first sleeve 7.

[0063] In this embodiment, the electronic control device can send working commands to the motor 4 to drive the worm 5 to rotate in the forward or reverse direction. Through the meshing action between the worm 5 and the worm wheel 6, the first sleeve 7 can be driven to rotate in the forward or reverse direction.

[0064] When the first sleeve 7 rotates, it will drive the drive shaft 8 to rotate, which in turn drives the retraction shaft 3 to rotate, so as to roll up or release the door curtain panel 10; thereby opening or closing the elevator shaft.

[0065] Since the worm 5 and the worm wheel 6 mesh with each other, the worm wheel 6 stops rotating after the worm 5 stops rotating. Furthermore, since the worm wheel 6 drives the worm 5 to rotate in the opposite direction, the retractable shaft 3 can stop rotating when the motor 4 stops rotating. At this time, external interference will not be able to drive the retractable shaft 3 to rotate, thus ensuring that the elevator shaft will not open or close accidentally.

[0066] Users can control the rotation of the retractable shaft 3 by controlling the rotation of the motor 4 according to actual needs. When the elevator shaft is opened or closed to meet the usage requirements, the degree of opening or closing of the elevator shaft can be controlled by stopping the rotation of the motor 4.

[0067] As a further embodiment of this utility model, the emergency structure includes a conical column 9 fixedly mounted on the drive shaft 8; a fixed column 16 fixedly mounted on the protective shell 2; a connecting rod 17 rotatably mounted on the fixed column 16; one end of the connecting rod 17 cooperates with the conical column 9; multiple sets of third tooth blocks 1701 are fixedly mounted on the other end of the connecting rod 17; a gear 14 is rotatably mounted on the mounting frame 1; a sliding rod 15 is slidably fitted inside the mounting frame 1; multiple sets of first tooth blocks 1501 and second tooth blocks 1502 are fixedly mounted on the sliding rod 15; multiple sets of first tooth blocks 1501 mesh with the gear 14; multiple sets of second tooth blocks 1502 mesh with multiple sets of third tooth blocks 1701; a return spring 18 is provided on the conical column 9; the two ends of the return spring 18 respectively abut against the conical column 9 and the protective shell 2.

[0068] In this embodiment, when components inside the control box 19 are damaged or there is an unexpected power outage, the user can release the restriction of the drive structure on the retraction shaft 3 through the emergency structure.

[0069] When an external force is applied to make the gear 14 rotate, the gear 14 will mesh with the first tooth block 1501, thereby driving the slide rod 15 to move upward within the mounting frame 1.

[0070] As the slide bar 15 moves upward, it will drive the second tooth block 1502 to move upward. During the movement, the second tooth block 1502 will mesh with the third tooth block 1701, thereby driving the connecting rod 17 to rotate on the fixed column 16, so that the connecting rod 17 squeezes the cone column 9.

[0071] The surface where the cone 9 contacts the connecting rod 17 is a slope. When the connecting rod 17 squeezes the cone 9, the slope will convert the squeezing force into a force on the cone 9 away from the retracting shaft 3, thereby driving the drive shaft 8 to slide within the first sleeve 7 and the retracting shaft 3, so that the contact area between the first sleeve 7 and the drive shaft 8 gradually decreases. During this process, the return spring 18 is compressed.

[0072] After the first sleeve 7 disengages from the drive shaft 8, the worm 5 and worm wheel 6 restrict the retraction and extension of the shaft 3. At this time, by applying an upward or downward force to the door curtain panel 10, the opening and closing of the elevator shaft can be freely controlled.

[0073] When the elevator shaft is closed or opened, the force applied to the door curtain panel 10 and gear 14 is removed. Under the elastic force of the return spring 18, the cone column 9 will move closer to the retractable shaft 3 and drive the connecting rod 17 to rotate and reset through the slope. The meshing action of the third tooth block 1701 and the second tooth block 1502 will drive the slide rod 15 to move downward, and the meshing action of the first tooth block 1501 and the gear 14 will drive the gear 14 to rotate and reset. During this process, the contact area between the drive shaft 8 and the first sleeve 7 gradually increases, so that the meshing action of the worm 5 and the worm wheel 6 can restrict the rotation of the retractable shaft 3 again.

[0074] Because the emergency device operates through mechanical transmission and does not require external power, it can effectively ensure normal use under harsh conditions such as prolonged exposure to sunlight and rain.

[0075] As a further embodiment of this utility model, two sets of mutually symmetrical guide rails 12 are fixedly installed on the mounting frame 1; rollers 1001 that roll in cooperation with the guide rails 12 are rotatably installed on the hinge ends of the two door curtain panels 10.

[0076] In this embodiment, the rolling cooperation between the roller 1001 and the guide rail 12 can effectively reduce the resistance to the movement of the door curtain panel 10, thereby improving the service life and stability of the device.

[0077] As a further embodiment of this utility model, a waterproof strip 11 is fixedly installed at the lower end of the door curtain panel 10; and a portion of the waterproof strip 11 covers the upper end of the other door curtain panel 10.

[0078] In this embodiment, the upper end of the waterproof strip 11 is a sloping surface, which allows rainwater to slide down the slope, thus making the landing point of the rainwater slightly away from the door curtain panel 10. Since the waterproof strip 11 can cover the hinge part of the two door curtain panels 10, it can effectively prevent rainwater from entering the elevator shaft from the connection end, thereby increasing the waterproof performance of the device.

[0079] As a further embodiment of this utility model, a drainage groove 101 is provided at the lower end of the mounting frame 1; and a drainage hole 102 is provided on the mounting frame 1; one end of the drainage hole 102 is connected to the drainage groove 101; and the other end is connected to the drainage pipe.

[0080] In this embodiment, after rainwater falls down the door curtain panel 10, it flows into the drainage ditch 101 due to infiltration and then into the drain pipe through the drain hole 102. The drainage ditch 101 and the drain hole 102 effectively prevent rainwater from flowing back into the elevator shaft when there is too much rainwater.

[0081] As a further improvement of this utility model, a knob 13 is fixedly installed on the gear 14.

[0082] In this embodiment, the knob 13 can effectively reduce the resistance of rotating gear 14, thereby facilitating the quick opening or closing of the elevator shaft in an emergency.

[0083] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad, comprising an installation frame (1) fixedly installed on the elevator shaft door frame, and a protective shell (2) on the installation frame (1). Its features are, The protective shell (2) is rotatably mounted with a retractable shaft (3); the protective shell (2) is provided with multiple sets of door curtain panels (10) that are hinged to each other; one of the door curtain panels (10) is rotatably hinged to the retractable shaft (3); A drive structure is provided on the protective shell (2); the drive structure can drive the retractable shaft (3) to rotate, so as to unfold or retract the door curtain panel (10); thereby closing or opening the elevator shaft; and after the drive structure stops operating, it can restrict the rotation of the retractable shaft (3); The mounting frame (1) is equipped with a control box (19) for controlling the operation of the drive structure according to the weather conditions. An emergency structure is also provided on the mounting frame (1); the emergency structure can release the restriction of the drive structure on the retraction shaft (3).

2. The automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad according to claim 1, characterized in that, The drive structure includes a motor (4) fixedly mounted on the protective shell (2); a worm gear (5) fixedly mounted on the output end of the motor (4); a first sleeve (7) rotatably mounted on the protective shell (2); a worm wheel (6) meshing with the worm gear (5) fixedly mounted on the first sleeve (7); a drive shaft (8) slidably mounted on the retracting shaft (3); and the drive shaft (8) slidably engages with the first sleeve (7).

3. The automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad according to claim 2, characterized in that, The emergency structure includes a conical column (9) fixedly mounted on the drive shaft (8); a fixed column (16) fixedly mounted on the protective shell (2); a connecting rod (17) rotatably mounted on the fixed column (16); one end of the connecting rod (17) cooperates with the conical column (9); multiple sets of third tooth blocks (1701) are fixedly mounted on the other end of the connecting rod (17); a gear (14) is rotatably mounted on the mounting frame (1); a slide rod (15) is slidably fitted inside the mounting frame (1); multiple sets of first tooth blocks (1501) and second tooth blocks (1502) are fixedly mounted on the slide rod (15); multiple sets of first tooth blocks (1501) mesh with the gear (14); multiple sets of second tooth blocks (1502) mesh with multiple sets of third tooth blocks (1701); a return spring (18) is provided on the conical column (9); the two ends of the return spring (18) respectively abut against the conical column (9) and the protective shell (2).

4. The automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad according to claim 1, characterized in that, Two sets of symmetrical guide rails (12) are fixedly installed on the mounting frame (1); rollers (1001) that roll in cooperation with the guide rails (12) are rotatably installed on the hinge ends of the two door curtain panels (10).

5. The automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad according to claim 1, characterized in that, A waterproof strip (11) is fixedly installed at the lower end of the door curtain panel (10); and part of the waterproof strip (11) covers the upper end of the other door curtain panel (10).

6. The automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad according to claim 1, characterized in that, The lower end of the mounting frame (1) is provided with a drainage ditch (101); and the mounting frame (1) is provided with a drainage hole (102); one end of the drainage hole (102) is connected to the drainage ditch (101); and the other end is connected to the drainage pipe.

7. The automatic rainproof device for the elevator shaft of a rooftop rescue helicopter landing pad according to claim 3, characterized in that, A knob (13) is fixedly installed on the gear (14).

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