Lifting sealing door structure

Abstract

The utility model discloses a lifting sealing door structure which comprises a transversely-arranged main beam, a branch beam is fixedly installed below the main beam, and vertical beams are installed below the branch beam at intervals through U-shaped supports. Guide rails are installed on the front side faces of the vertical beams on the two sides respectively, a plurality of sliding blocks are assembled on the guide rails at intervals, and the sliding blocks on the guide rails on the two sides are installed at the two opposite ends of the lifting door respectively. The lifting door further comprises two chains which are vertically arranged in the mode of being attached to the vertical beams, one end of each chain is installed on the top of the uppermost sliding block on the corresponding vertical beam, the other end of each chain is installed on the bottom of the lowermost sliding block on the corresponding vertical beam, and the two chains are in synchronous transmission to drive the lifting door to move up and down, so that reliable opening and closing of the lifting door are achieved. The device is particularly suitable for being frequently used in a laboratory, good in stability, capable of saving site space due to the vertically-arranged lifting structure and good in practicability.

Description

Technical Field

[0001] This utility model relates to the field of testing facility technology, and in particular to a lifting and sealing door structure. Background Technology

[0002] When high-voltage electrical products (such as high-voltage switchgear, insulating bushings, transformers, etc.) operate outdoors or in high-dust environments, their dustproof capabilities directly affect the safety and service life of the equipment. According to international standards (such as IEC 62271-203, GB / T4208), such products must pass the IP5X dustproof rating test, which simulates the extreme conditions of continuous penetration of high-concentration dust environments (such as particles smaller than 0.075mm) in a test laboratory.

[0003] As the core barrier of the dust control system, the laboratory door must possess characteristics such as high airtightness and reliability in frequent opening and closing to ensure the accuracy of test results. The interior of the laboratory needs to maintain a positive pressure environment. Traditional doors mostly rely on a static pressing structure of rubber sealing strips, which are prone to deformation under high pressure differentials. After long-term use, wear and aging can lead to a decrease in airtightness. Some laboratories use horizontal sliding sealing doors, but the lateral movement of the door requires reserved track space, making it unsuitable for narrow laboratory spaces. Utility Model Content

[0004] To address the aforementioned issues, this application provides a structurally sound lifting and sealing door structure, thereby enabling reliable opening and closing of the lifting door. It is particularly suitable for frequent use in laboratories, exhibiting good stability. Furthermore, the vertically arranged lifting structure saves space and offers excellent practicality.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A lifting and sealing door structure includes a horizontally arranged main beam, a support beam fixedly installed below the main beam, and vertical beams installed at intervals below the support beams via U-shaped brackets; guide rails are respectively installed on the front sides of the two vertical beams, and multiple sliders are spaced apart on the guide rails, with the sliders on the two guide rails respectively installed at opposite ends of the lifting door; it also includes two chains arranged vertically against the vertical beams, one end of each chain is installed at the top of the uppermost slider on the corresponding vertical beam, and the other end of each chain is installed at the bottom of the lowermost slider on the corresponding vertical beam, with the two chains driving synchronously to move the lifting door up and down.

[0007] As a further improvement to the above technical solution:

[0008] It also includes a fixed frame that is adapted to the size of the lifting door, with the lifting door and the fixed frame facing each other or separated vertically; the side of the lifting door facing the fixed frame is equipped with a sealing structure along the edge.

[0009] The side of the lifting door extends laterally along the edge to form a receiving groove, and an airbag is installed circumferentially inside the receiving groove. The airbag is connected to an external air source for inflation or deflation.

[0010] The fixed frame is located on the upper part of the vertical beam, and the lifting door is directly opposite the fixed frame after it moves up; the top surface of the lifting door is equipped with a pin, and the top surface of the fixed frame is equipped with an upper locking mechanism for the pin.

[0011] A transmission rod is rotatably mounted parallel to the support beam below it. The transmission rod is driven to rotate axially by a rotational driving force. Upper sprockets for corresponding chain meshing are fitted on the transmission rod at intervals. A lower sprocket is arranged directly below the upper sprocket, and the chain is vertically wound around the corresponding upper and lower sprockets.

[0012] The bottom surface of the support beam is equipped with multiple upper lugs at intervals facing downwards, and the transmission rod passes through each upper lug and is rotatably connected via bearings.

[0013] There are three or more sliders installed between a single guide rail and the lifting door.

[0014] The two vertical beams are also equipped with side locking mechanisms on their outer sides. The side locking mechanisms are located on the same straight line and lock the lifting door after passing through the vertical beams from opposite directions.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model uses a chain to drive the lifting door up and down, thereby realizing the reliable opening and closing of the lifting door. It is especially suitable for frequent use in laboratories, with good stability. The vertically arranged lifting structure can also save space and improve the flexibility of site layout, making it highly practical.

[0017] This utility model also has the following advantages:

[0018] When the lifting door moves to be directly opposite the fixed frame, the airbag is inflated, and the inflated airbag is pressed tightly between the lifting door and the fixed frame to achieve a dynamic seal, effectively ensuring the sealing performance.

[0019] The upper locking mechanism and the side locking mechanism are used to secure the lifting door to the fixed frame, effectively supporting and fixing the lifting door to prevent it from falling or tipping over. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0022] Figure 3 This is a schematic diagram of the upper and lower arrangement of the chain of this utility model.

[0023] Figure 4 Figure 1 is a state diagram of the alignment of the lifting door and the fixed frame of the utility model.

[0024] Wherein: 1, the main beam; 2, the support beam; 3, the transmission rod; 4, the vertical beam; 5, the lifting door; 6, the chain; 7, the side locking mechanism; 8, the fixed frame; 9, the upper locking mechanism;

[0025] 21, U-shaped support;

[0026] 30, rotating drive power; 31, upper support lug;

[0027] 40, guide rail; 41, sliding block;

[0028] 51, accommodating groove;

[0029] 61, upper chain wheel; 62, lower chain wheel; 63, lower support lug;

[0030] 91, latch. DETAILED DESCRIPTION

[0031] The specific implementation of the utility model will be described below in conjunction with the drawings.

[0032] As shown in Figure 1 , Figure 2 and Figure 3 , the lifting sealing door structure of the embodiment comprises a main beam 1 arranged transversely, a support beam 2 is fixedly installed below the main beam 1, and a vertical beam 4 is installed below the support beam 2 at intervals through a U-shaped support 21; the front side of the vertical beam 4 on both sides is respectively provided with a guide rail 40, a plurality of sliding blocks 41 are arranged on the guide rail 40 at intervals, and the sliding blocks 41 on the guide rails 40 on both sides are respectively installed at the opposite ends of a lifting door 5; further comprising two chains 6 arranged vertically along the vertical beam 4, one end of a single chain 6 is installed on the top of the uppermost sliding block 41 on the corresponding vertical beam 4, the other end of the single chain 6 is installed on the bottom of the lowermost sliding block 41 on the corresponding vertical beam 4, and the two chains 6 are synchronously driven to move the lifting door 5 up and down.

[0033] In the embodiment, the up and down transmission of the chain 6 drives the up and down movement of the lifting door 5, thereby realizing the reliable opening and closing of the lifting door 5, and especially being suitable for frequent use in the laboratory and having good stability.

[0034] Further comprising a fixed frame 8 matched in size with the lifting door 5, the lifting door 5 and the fixed frame 8 are opposite and fit to realize closing or are separated up and down to realize opening; the side surface of the lifting door 5 facing the fixed frame 8 is provided with a sealing structure along the edge.

[0035] As shown in Figure 4As shown, the side of the lifting door 5 extends along the edge to form a receiving groove 51, and an air bag is arranged in the receiving groove 51 in a circumferential direction and communicates with an external air source to inflate or deflate.

[0036] In this embodiment, when the lifting door 5 moves to be opposite to the fixed frame 8, the air bag is inflated to abut against the fixed frame 8 between the lifting door 5 and the fixed frame 8 to achieve dynamic sealing, thereby effectively ensuring the sealing performance.

[0037] In this embodiment, the air bag is used to replace the conventional solid rubber sealing ring in the prior art to achieve dynamic sealing through inflation and deflation of the air bag, thereby assisting in ensuring and improving the sealing effect and service life.

[0038] In this embodiment, an air nozzle can be mounted on the air bag and laterally penetrates the receiving groove 51, and the air nozzle communicates with the external air source through an air path. The inflation and deflation switching can be realized by installing an on-off valve and an air pump on the air path.

[0039] In this embodiment, a pressure sensor can also be arranged on the air bag according to actual needs, and the sealing effect of the inflated air bag between the fixed frame 8 and the lifting door 5 is ensured by maintaining a preset pressure.

[0040] The fixed frame 8 is located at the upper part of the vertical beam 4, and the lifting door 5 is opposite to the fixed frame 8 after being moved upward. The top surface of the lifting door 5 is provided with a latch 91, and the top surface of the fixed frame 8 is provided with an upper locking mechanism 9 for accommodating the latch 91.

[0041] In this embodiment, the upper locking mechanism 9 can be a support mounted on the top surface of the fixed frame 8, and a horizontal plate is mounted on the support. A long hole is formed in the horizontal plate for accommodating the latch 91.

[0042] Of course, in actual use, the fixed frame 8 can also be arranged at the lower part of the vertical beam 4 according to actual scene needs to be opposite to the fixed frame 8 to achieve closure in the lowered state of the lifting door 5. At this time, a locking mechanism can be arranged between the bottom surface of the lifting door 5 and the fixed frame 8.

[0043] A transmission rod 3 is rotatably arranged below the support beam 2. The transmission rod 3 is axially rotated by a rotating driving power 30. The transmission rod 3 is provided with upper sprockets 61 for accommodating corresponding chains 6 in a sleeved manner. A lower sprocket 62 is arranged below the upper sprockets 61. The chains 6 are vertically wound on the corresponding upper sprockets 61 and lower sprockets 62.

[0044] In this embodiment, the rotating driving power 30 can be a motor. The motor drives the transmission rod 3 to rotate, and the upper sprockets 61 rotate. The lifting door 5 is driven to move upward or downward by the chains 6 through forward and reverse rotation switching of the upper sprockets 61.

[0045] In this embodiment, the lower sprocket 62 is rotatably supported by a lower support lug 63.

[0046] The bottom surface of the support beam 2 is spaced downwardly provided with a plurality of upper support ears 31, the transmission rod 3 penetrates each upper support ear 31 and is rotationally connected through a bearing, effectively ensuring the structural support of the transmission rod 3 below the support beam 2, and ensuring the smooth use of the lifting mechanism.

[0047] The single guide rail 40 is spaced apart from the lifting door 5 and is provided with three or more sliding blocks 41.

[0048] The outer side surface of the two vertical beams 4 is further provided with a side locking mechanism 7, and the side locking mechanism 7 is located on the same straight line, and the lifting door 5 is locked after being penetrated by the side locking mechanism 7 towards the inside of the vertical beam 4.

[0049] In the embodiment, the locking mechanism 9 and the side locking mechanism 7 are used to fasten the lifting door 5 and the fixed frame 8, effectively support and fix the lifting door 5, and prevent falling or toppling.

[0050] In the embodiment, the side locking mechanism 7 can be a cylinder mounted on the outer wall of the vertical beam 4, and the output end of the cylinder is connected with a movable pin, and the movable pin can be fitted into a hole on the side of the lifting door 5 after penetrating the vertical beam 4.

[0051] The utility model realizes reliable opening and closing of the lifting door, is especially suitable for frequent use in the laboratory, has good stability, can realize dynamic sealing, guarantees sealing effect, the vertically arranged lifting structure can also save site space, improves site layout flexibility, and has good practicality.

[0052] In the description, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to.

[0053] The above description is an explanation of the utility model, not a limitation of the utility model, and the scope of the utility model is defined in the claims, and any form of modification is within the protection scope of the utility model.

Claims

1. A lift seal door structure, characterized by: The utility model provides a kind of movable door, including transverse main beam (1), and main beam (1) is fixedly installed with support beam (2) below, and support beam (2) is spacedly installed with vertical beam (4) below via U-shaped support (21);The front side of two side vertical beams (4) is respectively installed with guide rail (40), and guide rail (40) is spacedly equipped with multiple sliders (41), and the slider (41) on the two side guide rails (40) is respectively installed on the opposite ends of lifting door (5);It also includes two chains (6) that are vertically arranged along vertical beam (4), and one end of single chain (6) is installed on the top of the uppermost slider (41) on corresponding vertical beam (4), and the other end of single chain (6) is installed on the bottom of the lowermost slider (41) on corresponding vertical beam (4), and two chains (6) are synchronous transmission, and drive lifting door (5) to move up and down.

2. A lift seal door structure as claimed in claim 1, wherein: It also includes fixed frame (8) that is suitable for the size of lifting door (5), and lifting door (5) is opposite to fixed frame (8) or is separated up and down;Lifting door (5) side surface towards fixed frame (8) is installed with sealing structure along edge.

3. A lift seal door structure as claimed in claim 2, wherein: The side surface of lifting door (5) extends laterally along edge to form accommodating groove (51), and air bag is equipped in accommodating groove (51) along circumference, and air bag is communicated with external air source to inflate or deflate.

4. A lift seal door structure as claimed in claim 2, wherein: The fixed frame (8) is located on the upper part of vertical beam (4), and lifting door (5) is opposite to fixed frame (8) after moving up;The top surface of lifting door (5) is installed with bolt (91) upwards, and the top surface of fixed frame (8) is installed with upper locking mechanism (9) for bolt (91) equipped.

5. A lift seal door structure as claimed in claim 1, wherein: The lower surface of support beam (2) is rotatably installed with transmission rod (3), and transmission rod (3) is axially rotated by rotary driving power (30), and upper sprocket (61) for corresponding chain (6) engaged equipped is equipped on transmission rod (3) in intervals;Lower sprocket (62) is arranged below upper sprocket (61), and chain (6) is vertically wound on corresponding upper sprocket (61) and lower sprocket (62).

6. A lift seal door structure as claimed in claim 5, wherein: The bottom surface of support beam (2) is downwardly installed with multiple upper supporting ears (31) in intervals, and transmission rod (3) penetrates each upper supporting ear (31) and is rotatably connected via bearing.

7. A lift seal door structure as claimed in claim 1, wherein: More than three sliders (41) are installed in intervals between single guide rail (40) and lifting door (5).

8. A lift seal door structure as claimed in claim 1, wherein: The outer side surface of two vertical beams (4) is also respectively installed with side locking mechanism (7), and side locking mechanism (7) is located on the same straight line, and lifting door (5) is locked by side locking mechanism (7) after passing through vertical beam (4) towards inwards.

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