Vertical sliding rail type air-tight door smooth opening and closing guide device

Abstract

The vertical sliding rail type air-tight door smooth opening and closing guide device achieves vertical opening and closing of an air-tight door through hydraulic driving and is suitable for scenes with high air tightness requirements. The core structure of the device comprises a wall body, an opening and closing door and an embedded adjusting structure, and the adjusting structure is composed of an air-tight door, an adjusting rod and a sliding assembly. The air-tight door is connected with a T-shaped sliding plate through an adjusting rod, and the sliding plate is mechanically connected with a hydraulic device through a cross beam to form a power transmission system. A sliding groove and a movable groove are formed in the wall body, and stable operation of the sliding assembly is ensured. Three-stage sealing is achieved between the opening and closing door and the air-tight door through rubber sealing strips, and the structural stability and the sealing performance are further improved through T-shaped limiting columns and reinforcing ribs.

Description

A vertical sliding rail type airtight door smooth opening and closing guide device Technical Field

[0001] This utility model provides a smooth opening and closing guide device, belonging to the technical field of vertical sliding rail airtight doors, and particularly relates to a smooth opening and closing guide device for vertical sliding rail airtight doors. Background Technology

[0002] Traditional sliding-rail airtight door devices typically consist of a door leaf, door frame, track, and locking mechanism, and are mainly used in civil defense projects, clean rooms, and nuclear facilities to achieve protection and sealing functions. However, existing devices have limited sealing performance. Traditional devices mostly rely on simple rubber sealing strips, which are difficult to meet high airtightness requirements; opening and closing operations are complex, with most devices using horizontal push-pull or manual locking methods, which are laborious and prone to jamming; structural stability is insufficient, and some devices are prone to component loosening or deformation under frequent opening and closing or overpressure environments; maintenance costs are high, as key components such as the track and locking mechanism are difficult to replace quickly after wear, affecting the service life of the device.

[0003] To address these shortcomings, this application provides a vertical sliding rail type airtight door guide device with smooth opening and closing, high sealing performance, and low maintenance costs through innovative hydraulic drive, vertical slide rail, and multi-stage limit design. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this application provides a smooth opening and closing guide device for vertical sliding rail airtight doors, which solves the problems of limited sealing performance, complex opening and closing operation, insufficient structural stability and high maintenance costs of traditional sliding rail airtight door devices.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a vertical sliding rail type airtight door smooth opening and closing guide device, including a wall, an opening and closing door provided on the wall, and an adjustment structure placed inside the wall on the inner side of the opening and closing door, the adjustment structure including an airtight door, an adjustment rod and a sliding component;

[0006] The airtight door and the opening and closing door correspond to each other. The airtight door is movably connected to several adjusting rods, and the other end of the adjusting rod is movably connected to a T-shaped sliding plate.

[0007] The sliding plates are integrally connected by a crossbeam, and a hydraulic device is mechanically connected above the crossbeam via a telescopic rod.

[0008] Preferably, the opening diameter of the opening / closing door is smaller than the size of the airtight door, and a rubber sealing strip is provided between the airtight door and the opening / closing door.

[0009] Preferably, the wall has a sliding groove inside that corresponds to the sliding plate, and there is a movable groove between the sliding grooves that communicates with itself and accommodates the sliding component.

[0010] Preferably, the width of the movable groove is less than the length of the adjusting rod, and the sum of the thickness of the movable groove and the opening / closing door is equal to the sum of the length of the adjusting rod and the thickness of the airtight door. The adjusting rod pushes the airtight door to achieve a sealed fit.

[0011] Preferably, the side of the airtight door away from the opening and closing door is fixedly connected to a fixing groove corresponding to the adjusting rod, and the end of the adjusting rod near the fixing groove and the connection position between the adjusting rod and the sliding plate are fixedly connected to T-shaped limiting posts.

[0012] Preferably, a number of reinforcing ribs are provided between the crossbeam and the sliding plate, and a fixing plate is sleeved on the outside of the telescopic rod. The fixing plate and the crossbeam are fixedly connected by bolts.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0014] This device uses a hydraulic system to drive a sliding assembly, which in turn moves the airtight door along with an adjusting rod. During this movement, the adjusting rod is tilted downwards. As the telescopic rod extends, the airtight door first touches the ground and stops moving downwards. As the sliding assembly continues to descend, the tilt of the adjusting rod changes until it becomes vertical, meaning the sliding assembly and the airtight door are at the same horizontal level. As the adjusting rod becomes horizontal, the distance between the sliding assembly and the airtight door increases, at which point the airtight door is pushed inside the door opening mechanism, closing it. To open, simply retract the telescopic rod.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the wall of a vertical sliding rail type airtight door smooth opening and closing guide device according to the present invention.

[0017] Figure 2 is a cross-sectional view of the wall of a vertical sliding rail type airtight door smooth opening and closing guide device according to the present invention.

[0018] Figure 3 is a longitudinal cross-sectional view of the wall of a vertical sliding rail type airtight door smooth opening and closing guide device according to the present invention.

[0019] Figure 4 is an exploded view of the sliding component of a vertical sliding rail type airtight door smooth opening and closing guide device of this utility model.

[0020] As shown in the figure:

[0021] 1. Walls;

[0022] 11. Door opening and closing; 12. Crossbeam; 13. Telescopic rod; 14. Hydraulic device; 15. Rubber sealing strip; 16. Sliding groove; 17. Movable groove; 18. Reinforcing rib; 19. Fixing plate;

[0023] 2. Adjust the structure;

[0024] 21. Airtight door; 22. Adjusting rod; 23. Sliding assembly; 24. Sliding plate; 25. Fixing groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] As shown in Figures 1 and 2, a smooth opening and closing guide device for a vertical sliding rail type airtight door includes a core structure comprising a wall 1, an opening / closing door 11, and an adjustment structure 2 embedded within the wall. The adjustment structure 2 consists of an airtight door 21, adjustment rods 22, and a sliding assembly 23. The airtight door 21 is correspondingly positioned to the opening / closing door 11 and is movably connected to several adjustment rods 22. The ends of the adjustment rods are connected to a T-shaped sliding plate 24. The sliding plate 24 is connected via an integrated crossbeam 12, and the top of the crossbeam is mechanically connected to a hydraulic device 14 via a telescopic rod 13, forming a power transmission system. A sliding groove 16 is formed inside the wall 1 corresponding to the sliding plate 24, with movable grooves 17 connecting between the grooves to accommodate the sliding assembly 23. The sum of the width of the movable groove and the thickness of the opening / closing door matches the sum of the length of the adjustment rod and the thickness of the airtight door, ensuring that the adjustment rod pushes the airtight door to achieve a sealed fit. The telescopic rod is hydraulically driven to move the sliding plate vertically, and the airtight door is opened and closed smoothly by the linkage of the adjustment rod.

[0029] In this embodiment, the hydraulic device 14 drives the vertical displacement of the telescopic rod 13, causing the sliding plate 24 to move linearly along the pre-set sliding groove 16 inside the wall 1. The sliding plate 24 is limited by a T-shaped structure and constrained by the width of the movable groove 17, ensuring that the adjusting rod 22 forms a stable lever transmission when pushing the airtight door 21. The airtight door 21 is detachably connected to the adjusting rod 22 through the fixing groove 25. With the elastic compensation function of the rubber sealing strip 15, a three-level sealing barrier is constructed between the door 11 and the wall 1.

[0030] In the above implementation scheme,

[0031] Spatial decoupling design: The hydraulic device that powers the opening and closing action is completely isolated from the sealing surface. The force is transmitted through the vertical sliding of the sliding component 23 in the movable groove 17, which avoids the problem of easy jamming of traditional horizontal push-pull airtight doors. It is especially suitable for high dust or confined space conditions.

[0032] Adaptive sealing mechanism: When the hydraulic device 14 provides constant thrust, the adjusting rod 22, through the length compensation function of the movable groove 17, enables the airtight door 21 to automatically level within a displacement range of ±5mm, ensuring that the rubber sealing strip 15 is always in the best compression state, and the airtightness can reach Class 5 level.

[0033] Redundant limit protection: The combination of the T-shaped limit post and the sliding plate 24 can maintain the initial position of the airtight door 21 in the event of hydraulic system failure. Combined with the triangular stable structure formed by the reinforcing ribs 18, it can withstand overpressure impacts of no less than 1.5 times the design pressure without becoming unstable.

[0034] Modular maintenance advantages: The bolted connection design between the crossbeam 12 and the fixed plate 19 allows the hydraulic device 14 to be replaced without shutting down the machine, and the standardized interface of the sliding component 23 supports rapid on-site repair, significantly reducing the total life cycle maintenance cost.

[0035] As shown in Figures 3 and 4, to enhance the sealing performance and structural stability of the device, the opening diameter of the opening / closing door 11 is designed to be smaller than that of the airtight door 21, and a rubber sealing strip 15 is added between them. A fixing groove 25 corresponding to the adjusting rod is fixed to the back of the airtight door, and T-shaped limit posts are installed at the end of the adjusting rod and the connection point of the sliding plate to prevent it from coming off. A reinforcing rib 18 is added between the crossbeam 12 and the sliding plate 24 to improve structural strength, and the fixing plate 19 sleeved on the outside of the telescopic rod 13 is fixedly connected to the crossbeam with bolts. This design, through a multi-level limiting structure and sealing design, meets the requirements of high airtightness conditions while ensuring the reliability and durability of the device during frequent opening and closing operations.

[0036] In this embodiment, the hydraulic device 14 uses an electric hydraulic cylinder as its power source. Its core components include a hydraulic pump, a solenoid valve, and a pressure sensor, enabling precise displacement control of the telescopic rod 13. The hydraulic pump is a common one-way gear pump with a rated pressure of 10 MPa and a flow rate of 5 L / min, ensuring stable thrust during opening and closing. The solenoid valve is a two-position three-way solenoid valve, controlling the flow of hydraulic oil to achieve the raising and lowering of the telescopic rod. The pressure sensor monitors the hydraulic system pressure in real time, working in conjunction with the controller to achieve closed-loop control, ensuring that the airtight door 21 maintains optimal sealing during opening and closing.

[0037] In terms of circuit design, the hydraulic unit 14 is powered by a 220V AC power supply, and a relay control circuit is used to start and stop the hydraulic pump. A PLC programmable logic controller is used as the controller to receive pressure sensor signals and control the opening and closing of the solenoid valves. An overload protection device is also included in the circuit to prevent damage to the hydraulic pump due to overload. Furthermore, redundancy is incorporated into the circuit design to ensure that the system can still operate normally if a single relay or solenoid valve fails.

[0038] In practical implementation, the control program of the hydraulic device 14 uses simple logic operations. It compares the real-time pressure value fed back by the pressure sensor with the set value and adjusts the on / off state of the solenoid valve to achieve pressure regulation. For example, when the pressure sensor detects that the hydraulic system pressure is lower than the set value, the PLC will trigger the solenoid valve to be energized, so that hydraulic oil flows to the hydraulic cylinder, pushing the telescopic rod 13 to rise until the pressure reaches the set value.

[0039] This design achieves smooth opening and closing of the airtight door through the organic combination of hydraulic drive and circuit control, while ensuring the reliability and durability of the system, making it particularly suitable for scenarios with high airtightness requirements.

[0040] The operating steps of this device are as follows: First, connect the power supply and start the hydraulic device 14. The hydraulic pump controls the flow of hydraulic oil to the telescopic rod 13 through the solenoid valve, pushing the sliding component 23 to move vertically along the sliding groove 16. In the initial state, the airtight door 21 is in the closed position, and the adjusting rod 22 is tilted downwards. When it is necessary to open the airtight door, the hydraulic device drives the telescopic rod to retract, the sliding component rises accordingly, the adjusting rod gradually changes from the tilted state to the vertical state, and the airtight door rises and leaves the ground until it is fully open. Conversely, when it is necessary to close the airtight door, the hydraulic device drives the telescopic rod to extend, the sliding component moves the airtight door downwards, the airtight door first touches the ground and stops moving downwards, as the sliding component continues to descend, the tilt state of the adjusting rod gradually changes until the airtight door is pushed into the opening and closing door 11, achieving precise closing. Throughout the process, the rubber sealing strip 15 ensures sealing performance through elastic deformation, and the T-shaped limit post cooperates with the movable groove 17 to prevent the adjusting rod from falling out, ensuring the stability and sealing of the device. The pressure sensor monitors the system pressure in real time and works with the PLC controller to achieve closed-loop control, ensuring a smooth opening and closing process and reliable sealing.

[0041] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A smooth opening and closing guide device for a vertical sliding rail type airtight door, comprising a wall (1), characterized in that: The wall (1) is provided with an opening and closing door (11), and an adjustment structure (2) is provided inside the wall (1) on the inner side of the opening and closing door (11). The adjustment structure (2) includes a sealed door (21), an adjustment rod (22) and a sliding assembly (23). The sealed door (21) corresponds to the opening and closing door (11). The sealed door (21) is movably connected to several adjustment rods (22). The other end of the adjustment rod (22) is movably connected to a T-shaped sliding plate (24). A crossbeam (12) is integrally connected between the sliding plates (24). A hydraulic device (14) is mechanically connected above the crossbeam (12) through a telescopic rod (13).

2. The smooth opening and closing guide device for a vertical sliding rail type airtight door according to claim 1, characterized in that: The opening diameter of the opening and closing door (11) is smaller than that of the airtight door (21), and a rubber sealing strip (15) is provided between the airtight door (21) and the opening and closing door (11).

3. The smooth opening and closing guide device for a vertical sliding rail type airtight door according to claim 1, characterized in that: The wall (1) is provided with a sliding groove (16) corresponding to the sliding plate (24) inside, and an active groove (17) is provided between the sliding grooves (16) to communicate with itself and accommodate the sliding component (23).

4. The smooth opening and closing guide device for a vertical sliding rail type airtight door according to claim 3, characterized in that: The width of the movable groove (17) is less than the length of the adjusting rod (22). The sum of the thickness of the movable groove (17) and the opening and closing door (11) is equal to the sum of the length of the adjusting rod (22) and the thickness of the sealed door (21). The adjusting rod (22) pushes the sealed door (21) to achieve a sealed fit.

5. The smooth opening and closing guide device for a vertical sliding rail type airtight door according to claim 1, characterized in that: The sealed door (21) is fixedly connected to a fixed groove (25) corresponding to the adjusting rod (22) on the side away from the opening and closing door (11). T-shaped limiting posts are fixedly connected to the end of the adjusting rod (22) near the fixed groove (25) and the connection position of the sliding plate (24) with the adjusting rod (22).

6. The smooth opening and closing guide device for a vertical sliding rail type airtight door according to claim 1, characterized in that: Several reinforcing ribs (18) are provided between the crossbeam (12) and the sliding plate (24). A fixing plate (19) is sleeved on the outside of the telescopic rod (13). The fixing plate (19) and the crossbeam (12) are fixedly connected by bolts.

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