Flood-proof protective air-tight door convenient to drive

Abstract

The invention relates to a conveniently-driven flood-proof protective air-tight door which comprises a hinge mechanism, a locking mechanism, a door leaf, a locking hand wheel, a reduction gearbox and a wheel type driving module, the wheel type driving module comprises a driving gear motor, a module rack and a roller, the wheel type driving module is arranged on the door leaf through the module rack, and the driving gear motor drives the roller to rotate; opening and closing of the door leaf are achieved; the wheel type driving module further comprises a clutch operation part, a cam, a disc spring, an upper limiting plate and a lower limiting plate, the clutch operation part is connected with the cam, and the upper limiting plate moves upwards by rotating the cam, so that the disc spring is compressed, and the driving speed reducing motor and the roller integrally move upwards and are separated from the ground to realize a clutch function. The wheel type driving module is additionally arranged on the basis of the protective air-tight door, the wheel type driving module is compact in structure and small in occupied space, the door leaf can be driven to be opened and closed through friction force between the rolling wheels and the ground, the convenient flood prevention function is achieved, and rapid opening and closing can be achieved in a limited space.

Description

Technical Field

[0001] The invention belongs to the field of civil air defense engineering, and in particular relates to a conveniently driven anti-flooding protective closed door. Background Art

[0002] With the increasing development and utilization of underground space, especially in special environments such as civil air defense projects, protective sealed doors have become one of the necessary facilities. Such sealed doors are usually installed at the entrances and exits of underground spaces to meet the protection needs against explosion shock waves and poisonous gases, and ensure the safety of personnel and equipment. The existing protective sealed doors mainly focus on airtightness and impact resistance in structural design, and use special sealing materials and structural reinforcements to resist external pressure changes and the penetration of harmful gases. However, traditional protective sealed doors cannot effectively block water flow in the face of emergencies such as floods, and their waterproof sealing performance is limited, making it difficult to meet the requirements as flood-proof doors. Therefore, in underground projects and civil air defense projects, how to make the sealed doors have flood-proof functions at the same time has become a technical problem that needs to be solved urgently.

[0003] Among the existing flood-proof door technologies, electric swing door-type flood-proof doors are more common. This type of flood-proof door mostly uses an electric push rod to drive the door leaf to open and close, so as to form a higher sealing pressure to block the water flow. However, the driving structure of this electric push rod needs to reserve a large space at the door pier during installation, so it is often difficult to directly install and modify it in the existing underground entrances and exits. In addition, the electric push rod type flood-proof door also has certain limitations during use. For example, in the event of an emergency power outage, the push rod loses power support and the door leaf cannot be effectively closed; even if it has a manual operation function, it is often inconvenient to operate due to the complex structure, and it is difficult to achieve a quick response. It can be seen that the existing flood-proof door structure has defects such as large size, poor spatial adaptability, and slow response in emergency situations, which limits its application in underground spaces, especially in narrow entrances and exits. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a conveniently driven flood-proof protective closed door, aiming to solve the shortcomings of the existing protective closed doors in flood-proof performance, installation space requirements and emergency response capabilities. The closed door of the present invention has a convenient flood-proof function and can be quickly opened and closed in a limited space.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A conveniently driven flood-proof and airtight door comprises a hinge mechanism, a locking mechanism, a door leaf, a locking hand wheel, a reduction box, and a wheel drive module. The wheel drive module comprises a driving reduction motor, a module frame, and a roller. The wheel drive module is arranged on the door leaf through the module frame. The driving reduction motor drives the roller to rotate to realize the opening and closing of the door leaf.

[0007] The wheel drive module also includes a clutch operating part, a cam, a disc spring, an upper limit plate and a lower limit plate. The upper limit plate is arranged above the driving reduction motor, the upper limit plate is fixedly connected to the driving reduction motor, and the lower limit plate is fixed on the module frame. The disc spring is located between the lower limit plate and the reduction motor and is used to provide pre-pressure when the roller contacts the ground; the clutch operating part is connected to the cam, and the cam is located between the upper limit plate and the lower limit plate. The upper limit plate is moved up by rotating the cam, thereby compressing the disc spring and causing the driving reduction motor and the roller to move up as a whole and leave the ground to realize the clutch function.

[0008] Preferably, the wheel drive module is integrally installed inside the door leaf through a module frame.

[0009] Preferably, the wheel drive module is directly mounted on the outer water-facing surface of the door leaf.

[0010] Preferably, the wheel drive module also includes a wheel axle, a transmission chain, a roller, a driven wheel and a driving wheel. The driving reduction motor drives the driven wheel through the driving wheel and the transmission chain. The driven wheel drives the roller to rotate around the wheel axle to realize the opening and closing of the door leaf.

[0011] Preferably, the roller is mounted on the module frame via a wheel axle, and a sliding sleeve is provided on the wheel axle to assist the smooth rotation of the roller.

[0012] Preferably, it also includes an embedded door frame and a sealing strip. The embedded door frame is arranged around the installation position of the closed door, and the sealing strip is installed at the upper and lower and both sides of the door leaf. When the door leaf is in a locked state, the sealing strip is in close contact with the embedded door frame to achieve a compression seal between the door leaf and the embedded door frame.

[0013] Preferably, it also includes an elastic pressure plate and a lip-shaped sealing strip fixed together, the elastic pressure plate and the lip-shaped sealing strip are fixed to the bottom of the door leaf by tightening screws, the elastic pressure plate and the lip-shaped sealing strip are inclined toward the water surface, and the lip-shaped sealing strip is in close contact with the ground.

[0014] Preferably, the clutch operating part adopts a clutch handle or a hand wheel, which is used to manually control the rotation of the cam to separate the roller from the ground in an emergency.

[0015] Preferably, it also includes a reduction motor arranged inside the reduction box, and the reduction motor drives the locking mechanism to complete the locking or opening of the door leaf through the rotation of the transmission component.

[0016] Preferably, in the event of a power outage, the door leaf is locked or opened by directly rotating the locking hand wheel.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) The present invention adds a wheel drive module to the protective sealed door. The module can be installed inside the door leaf or directly installed on the water-facing surface of the door leaf to adapt to different installation conditions. The wheel drive module has a compact structure and occupies a small space. It can drive the door leaf to open and close through the friction between the roller and the ground. It is suitable for new construction projects and is also convenient for direct installation and modification on existing protective sealed doors.

[0019] (2) The wheel drive module of the present invention is provided with a manual clutch function. Even in the event of an emergency power outage, manual operation can be achieved through the clutch operating unit. The clutch operating unit adjusts the position of the upper limit plate by controlling the rotation of the cam, so that the roller can be lifted off the ground when needed, thereby achieving rapid clutch.

[0020] (3) The disc spring installed in the wheel drive module can provide appropriate pre-pressure for the roller, enhance the friction between the roller and the ground, and thus improve the driving force of the door leaf. The disc spring design can not only increase the adhesion of the roller to the ground, but also enable the device to have a certain adaptability to the unevenness of the ground during operation, ensuring stable operation under various ground conditions. In addition, it can also be used to drive other heavy-duty door bodies.

[0021] (4) The present invention provides a pressure plate type lip sealing structure between the bottom of the door leaf and the ground, and utilizes the water pressure to achieve a "tighter the more pressure is applied" sealing effect, thereby further improving the flood-proof sealing performance without affecting the original airtightness of the protective sealed door. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the conveniently driven anti-flooding protective closed door of the present invention;

[0023] Figure 2 This is a schematic diagram of the installation of the wheel drive module of the present invention in a door leaf;

[0024] Figure 3 for Figure 2 A magnified image of point A;

[0025] Figure 4 This is a schematic diagram of the installation of the wheel drive module of the present invention on the water-facing surface outside the door leaf;

[0026] Figure 5 It is a front structural schematic diagram of the wheel drive module of the present invention;

[0027] Figure 6 It is a side structural schematic diagram of the wheel drive module of the present invention;

[0028] Figure markings: 1-hinge mechanism; 2-locking mechanism; 3-door leaf; 4-locking hand wheel; 5-reduction box; 6-wheel drive module; 601-clutch operating part; 602-cam; 603-disc spring; 604-driving reduction motor; 605-module frame; 606-axle; 607-sleeve; 608-roller; 609-driven wheel; 610-transmission chain; 611-driving wheel; 612-lower limit plate; 613-upper limit plate; 7-embedded door frame; 8-sealing strip; 9-reduction motor; 10-tightening screw; 11-elastic pressure plate; 12-lip sealing strip. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention belong to the present invention.

[0030] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0031] like Figure 1-6 As shown, this embodiment discloses a conveniently driven flood-proof protective closed door, including a hinge mechanism 1, a locking mechanism 2, a door leaf 3, a locking handwheel 4, a reduction box 5 and a wheel drive module 6. The hinge mechanism 1 is used to connect and support the door leaf 3 so that the door leaf can rotate stably when opening and closing; the locking mechanism 2 is used to lock the door leaf after it is closed to ensure the protective sealing of the closed door; the door leaf 3, as the main part of the entire closed door, plays a blocking role in the opening and closing process, and cooperates with other components to achieve the protective function; the locking handwheel 4 is connected to the locking mechanism 2, and the user can control the locking state of the door leaf 3 by rotating the locking handwheel 4, so as to achieve manual locking or unlocking in an emergency; the reduction box 5 is installed in the door leaf 3, and works with the locking handwheel 4 to control the action of the locking mechanism 2.

[0032] The wheel drive module 6 includes a driving reduction motor 604, a module frame 605 and a roller 608. The wheel drive module 6 is set on the door leaf 3 through the module frame, and the driving reduction motor 604 drives the roller 608 to rotate to achieve the opening and closing of the door leaf 3. The driving reduction motor 604 provides power, and by driving the rotation of the roller 608, friction is generated between the roller and the ground, thereby pushing the door leaf 3 to open and close, achieving the effect of automatic door opening and closing. The module frame 605 is used to support the entire wheel drive module 6 and firmly install it on the door leaf 3 to ensure that the module remains stable during operation and will not affect normal operation due to vibration or displacement.

[0033] The wheel drive module 6 also includes a clutch operating unit 601, a cam 602, a disc spring 603, an upper limit plate 613 and a lower limit plate 612. The clutch operating unit 601 is used to manually control the clutch function, and is connected to the cam 602 so that the user can manually adjust the clutch state of the drive system. The upper limit plate 613 is arranged above the drive reduction motor 604, and the upper limit plate 613 is fixedly connected to the drive reduction motor 604. The lower limit plate 612 is fixed on the module frame 605 to provide a stable support point. The disc spring 603 is located below the lower limit plate 612, and the disc spring 603 is located between the lower limit plate 613 and the reduction motor 604, which is used to provide pre-pressure when the roller 608 contacts the ground, and enhance the friction between the roller 608 and the ground, thereby improving the driving force of the door leaf 3. This pre-pressure design also enables the roller 608 to maintain effective contact when encountering uneven ground, ensuring the stability of the driving process. The clutch operating part 601 is connected to the cam 602, and the cam 602 is located between the upper limit plate 613 and the lower limit plate 612. The upper limit plate 613 is moved up by rotating the cam 602, thereby compressing the disc spring 603 and causing the driving reduction motor 604 and the roller 608 to move up as a whole and leave the ground to realize the clutch function. When the roller 608 is separated from the ground, the door leaf 3 will not produce unnecessary movement due to friction, thereby ensuring the stability of the door leaf in the clutch state.

[0034] like Figure 2 As described above, in some embodiments, the wheel drive module 6 is integrally installed inside the door leaf 3 through the module frame 605. Installing the wheel drive module 6 inside the door leaf 3 can not only save external space, but also effectively protect the drive module from the influence of the external environment, thereby improving its service life and stability. The module frame 605 serves as a supporting structure to firmly fix the entire wheel drive module 6 inside the door leaf 3, providing a reliable installation position for the drive assembly.

[0035] like Figure 4As shown, in other embodiments, the wheel drive module 6 is directly mounted on the external water-facing surface of the door leaf 3. Installing the wheel drive module 6 on the external water-facing surface of the door leaf 3 can facilitate installation and maintenance, while ensuring that the drive device can generate direct driving force on the water-facing surface to achieve rapid opening and closing of the door leaf 3. This external installation method is suitable for situations where space conditions permit, making the installation method of the wheel drive module 6 more flexible.

[0036] like Figure 5-6 As shown, further, the wheel drive module 6 also includes a wheel shaft 606, a transmission chain 610, a roller 608, a driven wheel 609 and a driving wheel 611. The driving reduction motor 604 drives the driven wheel 609 through the driving wheel 611 and the transmission chain 610, and the driven wheel 609 drives the roller 608 to rotate around the wheel shaft 606 to realize the opening and closing of the door leaf 3. Through the structural design of the transmission chain 610, the power of the driving reduction motor 604 can be smoothly transmitted to the roller 608, making the driving process smoother. The roller 608 is installed on the module frame 605 through the wheel shaft 606, and the wheel shaft 606 is provided with a sleeve 607 for assisting the smooth rotation of the roller 608. The setting of the sleeve 607 effectively reduces the friction when the roller 608 rotates, so that the roller 608 can rotate smoothly, and the operation efficiency of the wheel drive module 6 is improved.

[0037] In this embodiment, a pre-buried door frame 7 and a sealing strip 8 are also included. The pre-buried door frame 7 is arranged around the installation position of the closed door to fix and support the door leaf 3. The sealing strip 8 is installed at the upper and lower and both sides of the door leaf 3. When the door leaf 3 is in a locked state, the sealing strip 8 will be in close contact with the pre-buried door frame 7 to form a compression seal, further improving the sealing effect of the closed door to prevent water or gas penetration. Through this compression seal structure, the closed door can effectively block the intrusion of the external environment in the closed state, ensuring the airtightness and safety of the internal space.

[0038] like Figure 3 As shown, further, it also includes an elastic pressure plate 11 and a lip-shaped sealing strip 12 fixed together. The elastic pressure plate 11 and the lip-shaped sealing strip 12 can be bonded together through contact surfaces or fixed together in other ways. The elastic pressure plate 11 and the lip-shaped sealing strip 12 are fixed to the bottom of the door leaf 3 by tightening screws 10. This structure ensures that the elastic pressure plate 11 and the lip-shaped sealing strip 12 are firmly connected to the door leaf 3, and the sealing performance is further enhanced under the action of water pressure. The elastic pressure plate 11 and the lip-shaped sealing strip 12 are inclined toward the water-facing surface, so that the sealing structure fits the ground more closely under the action of water flow pressure, thereby achieving a sealing effect that becomes tighter and tighter with pressure. The lip-shaped sealing strip 12 is in close contact with the ground, and especially in the case of a threshold-free design, it can still achieve a reliable seal between the door leaf 3 and the ground, further enhancing the waterproof and dustproof effects of the closed door.

[0039] The clutch operating part 601 adopts a clutch handle or a hand wheel, which is used to manually control the rotation of the cam 602 so as to separate the roller 608 from the ground in an emergency. By manually rotating the clutch handle or the hand wheel, the position change of the cam 602 can be controlled, so that the upper limit plate 613 moves up, and finally the roller 608 moves up as a whole and leaves the ground. This design ensures that the door leaf 3 can still be manually controlled in the event of a power failure or other emergency, thereby improving the reliability of the system and the convenience of emergency operation.

[0040] In this embodiment, a reduction motor 9 is also included which is arranged inside the reduction box 5. The reduction motor 9 drives the locking mechanism 2 through the transmission assembly to complete the locking or opening of the door leaf 3. The reduction motor 9 uses the transmission assembly to transmit power to the locking mechanism 2 to ensure that the door leaf 3 can be firmly locked or smoothly opened. Through the control of the reduction motor 9, the locking process is more stable, and reliable power support can be provided in the opening and closing operation of the closed door, so that the door leaf 3 can maintain a safe locking effect in different working conditions. In the case of a power outage, the locking or opening of the door leaf 3 is completed by directly rotating the locking hand wheel 4. When the power is interrupted or the system fails, the user can manually rotate the locking hand wheel 4 to directly control the state of the locking mechanism 2 and realize the locking or opening function of the door leaf 3. This design ensures the operability of the system in an emergency, ensures that the closed door can complete the required opening and closing actions in any state, and improves the reliability and emergency response capability of the system.

[0041] The working principle of the conveniently driven anti-flooding protective closed door of this embodiment is as follows: Under normal working conditions, the driving reduction motor 604 of the wheel drive module 6 drives the roller 608 to rotate to realize the opening and closing of the closed door. The driving reduction motor 604 drives the roller 608 to roll on the ground, and uses the friction between the roller 608 and the ground to generate driving force, so that the door leaf 3 can be smoothly opened and closed without using the traditional electric push rod method. In emergency situations such as power outages, the driving reduction motor 604 cannot provide a rotating force for the roller 608, and the friction between the roller 608 and the ground is large, so it is difficult for manpower to directly push the door leaf 3. To solve this problem, the clutch operating part 601 can be operated to rotate the cam 602, so that the upper limit plate 613 moves up and compresses the disc spring 603, so that the driving reduction motor 604 and the roller 608 move up as a whole, so that the roller 608 is separated from the ground. When the roller 608 is separated from the ground, the wheel drive module 6 no longer generates friction resistance, and personnel can manually push the door leaf 3 to realize emergency switch. This design ensures the operational convenience and emergency reliability of the closed door in emergency situations such as power outages or drive failures.

[0042] In summary, the present invention discloses a conveniently driven flood-proof and airtight door, which realizes the automatic opening and closing of the door leaf 3 through the wheel drive module 6, avoiding the space limitation of the traditional electric push rod. Under normal circumstances, the driving reduction motor 604 drives the roller 608 to roll on the ground to realize the opening and closing of the door leaf 3; in the event of a power outage or emergency, the clutch operating part 601 can make the roller 608 leave the ground, which is convenient for personnel to manually push the door leaf 3 and ensure the reliability of emergency operation. In addition, through the compression and sealing design of the embedded door frame 7 and the sealing strip 8 and the "the more you press, the tighter" structure of the elastic pressure plate 11 and the lip-shaped sealing strip 12, the present invention not only realizes protective sealing, but also significantly enhances the flood-proof performance. It has a compact structure and flexible installation, is suitable for new construction and renovation projects, and has good application prospects.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conveniently driven flood-proof protective closed door, comprising a hinge mechanism (1), a locking mechanism (2), a door leaf (3), a locking hand wheel (4), a reduction gear box (5), and a wheel drive module (6), characterized in that: The wheel drive module (6) comprises a driving reduction motor (604), a module frame (605) and a roller (608); the wheel drive module (6) is arranged on the door leaf (3) via the module frame (605); the driving reduction motor (604) drives the roller (608) to rotate, so as to realize the opening and closing of the door leaf (3); The wheel drive module (6) further comprises a clutch operating unit (601), a cam (602), a disc spring (603), an upper limit plate (613) and a lower limit plate (612); the upper limit plate (613) is arranged above the driving reduction motor (604); the upper limit plate (613) is fixedly connected to the driving reduction motor (604); the lower limit plate (612) is fixed on the module frame (605); the disc spring (603) is located on the lower limit plate (612); and the reduction motor (604), and is used to provide pre-pressure when the roller (608) contacts the ground; the clutch operating part (601) is connected to the cam (602), and the cam (602) is located between the upper limit plate (613) and the lower limit plate (612); the upper limit plate (613) is moved upward by rotating the cam (602), thereby compressing the disc spring (603) and causing the driving reduction motor (604) and the roller (608) to move upward as a whole and leave the ground to realize the clutch function.

2. The conveniently driven flood-proof protective closed door according to claim 1, characterized in that: The wheel drive module (6) is integrally mounted inside the door leaf (3) via a module frame (605).

3. The conveniently driven flood-proof protective closed door according to claim 1, characterized in that: The wheel drive module (6) is installed on the outer water-facing surface of the door leaf (3).

4. The conveniently driven flood-proof protective closed door according to claim 2 or 3, characterized in that: The wheel drive module (6) further comprises a wheel axle (606), a transmission chain (610), a roller (608), a driven wheel (609) and a driving wheel (611); the driving reduction motor (604) drives the driven wheel (609) via the driving wheel (611) and the transmission chain (610); the driven wheel (609) drives the roller (608) to rotate around the wheel axle (606) to achieve opening and closing of the door leaf (3).

5. The conveniently driven flood-proof protective closed door according to claim 4, characterized in that: The roller (608) is mounted on the module frame (605) via a wheel axle (606), and a sliding sleeve (607) is provided on the wheel axle (606) to assist the roller (608) in rotating smoothly.

6. The conveniently driven flood-proof protective closed door according to claim 5, characterized in that: It also comprises an embedded door frame (7) and a sealing strip (8), wherein the embedded door frame (7) is arranged around the installation position of the closed door, and the sealing strip (8) is installed at the upper and lower positions and both sides of the door leaf (3); when the door leaf (3) is in a locked state, the sealing strip (8) is in close contact with the embedded door frame (7), thereby achieving a compression seal between the door leaf (3) and the embedded door frame (7).

7. The conveniently driven flood-proof protective closed door according to claim 6, characterized in that: It also includes an elastic pressure plate (11) and a lip-shaped sealing strip (12) fixed together, wherein the elastic pressure plate (11) and the lip-shaped sealing strip (12) are fixed to the bottom of the door leaf (3) by means of a clamping screw (10), the elastic pressure plate (11) and the lip-shaped sealing strip (12) are inclined toward the water-facing surface, and the lip-shaped sealing strip (12) is in close contact with the ground.

8. The conveniently driven flood-proof protective closed door according to claim 7, characterized in that: The clutch operating part (601) adopts a clutch handle or a hand wheel, which is used to manually control the rotation of the cam (602) so as to separate the roller (608) from the ground in an emergency.

9. The conveniently driven flood-proof protective closed door according to claim 1, characterized in that: It also includes a reduction motor (9) arranged inside the reduction box (5), wherein the reduction motor (9) drives the locking mechanism (2) to rotate through the transmission component to complete the locking or opening of the door leaf (3).

10. The conveniently driven flood-proof protective closed door according to claim 9, characterized in that: In the event of a power outage, the door leaf (3) can be locked or opened by directly rotating the locking hand wheel (4).

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