Conveniently driven anti-flood protection sealed door

Abstract

The application relates to a convenient driving anti-flood protection sealed door, which comprises a hinge mechanism, a locking mechanism, a door leaf, a locking handle, a speed reducer, a wheel type driving module, the wheel type driving module comprises a driving speed reducer motor, a module frame and a roller, the wheel type driving module is arranged on the door leaf through the module frame, the driving speed reducer motor drives the roller to rotate, so that the opening and closing of the door leaf are realized; 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, the upper limiting plate is moved upward through the rotation of the cam, so that the disc spring is compressed and the driving speed reducer motor and the roller are integrally moved upward, are separated from the ground to realize the clutch function. The wheel type driving module is added on the basis of the protection sealed door, the wheel type driving module is compact in structure, small in occupied space, can drive the opening and closing of the door leaf through the friction force between the roller and the ground, has the convenient anti-flood function, and can realize the rapid opening and closing in the limited space.

Description

Technical Field

[0001] The present 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, ensuring the safety of personnel and equipment. The structural design of existing protective sealed doors mainly focuses on airtightness and impact resistance, and uses 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 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 prevention door technologies, electric swing door-type flood prevention doors are more common. This type of flood prevention door mostly uses an electric push rod to drive the door leaf to open and close, in order to form a higher sealing pressure to block the water flow. However, the driving structure of this electric push rod requires a large space to be reserved at the door pier during installation, so it is often difficult to directly install and modify it in existing underground entrances and exits. In addition, electric push rod flood prevention doors also have 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 difficult to operate inconveniently due to the complex structure, and it is difficult to achieve a quick response. It can be seen that the existing flood prevention door structure has defects such as large size, poor spatial adaptability, and slow response in emergency situations, which limit its application in underground spaces, especially narrow entrances and exits. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a conveniently driven flood-proof protective closed door, which aims 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 handwheel, a reduction gearbox, 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 mounted on the door leaf via the module frame. The driving reduction motor drives the roller to rotate to open and close 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 for manually controlling 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 handwheel.

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

[0018] (1) The present application adds a wheeled driving module to the protective airtight door, which can be installed inside the door leaf or directly installed on the water-facing surface of the door leaf, and is suitable for different installation conditions. The wheeled driving module has compact structure and small space occupation, and can drive the opening and closing of the door leaf through the friction between the rollers and the ground, which is suitable for new projects and convenient for direct installation and modification on existing protective airtight doors.

[0019] (2) The wheeled driving module of the present application is provided with a manual clutch function, so that manual operation can be realized through the clutch operation part even in the case of emergency power failure. The clutch operation part adjusts the position of the upper limit plate by controlling the rotation of the cam, so that the rollers can be separated from the ground when needed, realizing quick clutching.

[0020] (3) The disc spring arranged in the wheeled driving module can provide appropriate pre-pressure for the rollers, enhance the friction between the rollers and the ground, and thus improve the driving force of the door leaf. The design of the disc spring not only increases the adhesion of the rollers to the ground, but also has certain adaptability to the unevenness of the ground during operation, ensuring stable operation under various ground conditions. In addition, it can also be applied to the driving of other heavy doors.

[0021] (4) The present application sets a pressure plate type lip seal structure between the bottom of the door leaf and the ground, which realizes the sealing effect of "the tighter the pressure, the tighter the sealing", thereby further improving the anti-flooding sealing performance without affecting the original air tightness of the protective airtight door. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the convenient driving anti-flooding protective airtight door structure of the present application;

[0023] Figure 2 is an installation schematic diagram of the wheeled driving module of the present application installed inside the door leaf;

[0024] Figure 3 is Figure 2 is an enlarged view of A;

[0025] Figure 4 is an installation schematic diagram of the wheeled driving module of the present application installed on the water-facing surface of the door leaf;

[0026] Figure 5 is a front structure schematic diagram of the wheeled driving module of the present application;

[0027] Figure 6 is a side structure schematic diagram of the wheeled driving module of the present application;

[0028] Figure markings: 1-hinge mechanism; 2-locking mechanism; 3-door leaf; 4-locking handwheel; 5-reduction gearbox; 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field 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 so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art 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, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0031] like Figures 1-6 As shown, this embodiment discloses a conveniently driven flood-proof protective closed door, comprising a hinge mechanism 1, a locking mechanism 2, a door leaf 3, a locking handwheel 4, a reduction gearbox 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 closing 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 during 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 gearbox 5 is installed in the door leaf 3 and works together with the locking handwheel 4 to control the action of the locking mechanism 2.

[0032] The wheeled drive module 6 comprises a drive reduction motor 604, a module frame 605, and rollers 608. The wheeled drive module 6 is mounted on the door leaf 3 via the module frame. The drive reduction motor 604 rotates the rollers 608 to open and close the door leaf 3. The drive reduction motor 604 provides power, which in turn drives the rollers 608, generating friction between the rollers and the ground, thereby pushing the door leaf 3 open and close, achieving the desired automatic door opening and closing effect. The module frame 605 supports the entire wheeled drive module 6 and securely mounts it to the door leaf 3, ensuring stability during operation and preventing vibration or displacement that could affect normal operation.

[0033] The wheel drive module 6 also includes a clutch operating part 601, a cam 602, a disc spring 603, an upper limit plate 613 and a lower limit plate 612. The clutch operating part 601 is used to manually control the clutch function. By connecting with the cam 602, the user can manually adjust the clutch state of the drive system. The upper limit plate 613 is set above the drive reduction motor 604. 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. The disc spring 603 is located between the lower limit plate 613 and the reduction motor 604, and is used to provide pre-pressure when the roller 608 contacts the ground, thereby enhancing 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 smoothness 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. By rotating the cam 602, the upper limit plate 613 is moved up, thereby compressing the disc spring 603 and causing the driving reduction motor 604 and the roller 608 to move up as a whole and separate from 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 mentioned above, in some embodiments, the wheeled drive module 6 is integrally mounted within the door leaf 3 via a module frame 605. Mounting the wheeled drive module 6 within the door leaf 3 not only saves external space but also effectively protects the drive module from environmental influences, thereby increasing its service life and stability. The module frame 605 serves as a supporting structure, firmly securing the entire wheeled drive module 6 within the door leaf 3 and providing a secure mounting location for the drive assembly.

[0035] like Figure 4As shown, in other embodiments, the wheeled drive module 6 is directly mounted on the external, water-facing surface of the door leaf 3. Mounting the wheeled drive module 6 on the external, water-facing surface of the door leaf 3 facilitates installation and maintenance while ensuring that the drive device can generate direct driving force on the water-facing surface, enabling rapid opening and closing of the door leaf 3. This external mounting method is suitable for situations where space conditions permit, providing greater flexibility in the installation of the wheeled drive module 6.

[0036] like Figures 5-6 As shown, further, the wheel drive module 6 also includes an 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 through the driving wheel 611 and the transmission chain 610, and the driven wheel 609 drives the roller 608 to rotate around the axle 606 to achieve 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 axle 606, and the axle 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, thereby improving the operating efficiency of the wheel drive module 6.

[0037] This embodiment also includes a pre-embedded door frame 7 and sealing strips 8. The pre-embedded door frame 7 is positioned around the installation location of the airtight door and serves to secure and support the door leaf 3. The sealing strips 8 are installed above, below, and on both sides of the door leaf 3. When the door leaf 3 is locked, the sealing strips 8 tightly contact the pre-embedded door frame 7, forming a tight seal, further enhancing the airtight door's sealing effectiveness and preventing water and gas infiltration. This tight seal structure effectively blocks the intrusion of the external environment when the airtight door is closed, ensuring the airtightness and safety of the interior space.

[0038] like Figure 3 Figure 3 As shown, it further 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 further enhances the sealing performance 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 more closely to the ground under the action of water pressure, thereby achieving a sealing effect that becomes tighter as it is pressed. 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 unit 601 utilizes a clutch handle or handwheel for manually controlling the rotation of the cam 602, enabling the roller 608 to separate from the ground in an emergency. Manually rotating the clutch handle or handwheel controls the position of the cam 602, thereby moving the upper limit plate 613 upward and ultimately lifting the entire roller 608 off 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, enhancing system reliability and convenient emergency operation.

[0040] In this embodiment, a reduction motor 9 is further included that is arranged inside the reduction box 5. The reduction motor 9 rotates the locking mechanism 2 through the transmission component to complete the locking or opening of the door leaf 3. The reduction motor 9 uses the transmission component to transmit power to the locking mechanism 2, ensuring 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 during the opening and closing operation of the closed door, so that the door leaf 3 can maintain a safe locking effect under different working conditions. In the event of a power outage, the locking or opening of the door leaf 3 is completed by directly rotating the locking handwheel 4. When the power is interrupted or the system fails, the user can manually rotate the locking handwheel 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 capabilities of the system.

[0041] The conveniently driven flood-proof airtight door of this embodiment operates as follows: Under normal operating conditions, the wheeled drive module 6's drive reduction motor 604 drives the roller 608 to rotate, enabling the airtight door to be opened and closed. The drive reduction motor 604 drives the roller 608 to roll on the ground, generating a driving force from the friction between the roller 608 and the ground. This allows for smooth opening and closing of the door leaf 3 without the need for a traditional electric push rod. In emergency situations, such as power outages, the drive reduction motor 604 is unable to provide rotational force for the roller 608, and the friction between the roller 608 and the ground is high, making it difficult for human power to directly push the door leaf 3. To address this issue, the clutch operating unit 601 is operated to rotate the cam 602, causing the upper limit plate 613 to move upward and compressing the disc spring 603. This causes the drive reduction motor 604 and roller 608 to move upward as a whole, freeing the roller 608 from the ground. When the roller 608 is separated from the ground, the wheel drive module 6 no longer generates frictional resistance, and personnel can manually push the door leaf 3 to realize emergency switching. 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, making it 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 achieves protective sealing, but also significantly enhances the anti-flooding 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 can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions described in the above embodiments, or to make equivalent replacements for some of the technical features therein. 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, thereby realizing the opening and closing of the door leaf (3); The wheel drive module (6) further comprises a clutch operating portion (601), a cam (602), a disc spring (603), an upper limit plate (613) and a lower limit plate (612), wherein 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), and the disc spring (603) is located between the lower limit plate (612) and the lower limit plate (612). The clutch operating portion (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, leaving the ground to realize the clutch function. The clutch operating portion (601) adopts a clutch handle or a hand wheel, which is used to manually control the rotation of the cam (602) to separate the roller (608) from the ground in an emergency.

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 mounted 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 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) via the driving wheel (611) and the transmission chain (610); 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).

5. The conveniently driven anti-flooding 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 smooth rotation of the roller (608).

6. The conveniently driven flood-proof protective closed door according to claim 5, characterized in that: The invention also includes a pre-buried door frame (7) and a sealing strip (8), wherein the pre-buried door frame (7) is arranged around the installation position of the sealed door, and 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) is in close contact with the pre-buried door frame (7), thereby achieving a compression seal between the door leaf (3) and the pre-buried door frame (7).

7. The conveniently driven anti-flooding 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 compression screw (10), and 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 anti-flooding protective closed door according to claim 1, characterized in that: It also includes a reduction motor (9) arranged inside the reduction box (5), and the reduction motor (9) drives the locking mechanism (2) to complete the locking or opening of the door leaf (3) through the rotation of the transmission component.

9. The conveniently driven anti-flooding protective closed door according to claim 8, 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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