Threshold-free laboratory door sealing device

Abstract

The utility model discloses a doorsill-free laboratory door sealing device, and relates to the technical field of laboratory sealing devices. The device comprises a wall body, wherein one side of the wall body is movably connected with an experiment door; a sealing mechanism is arranged on one side of the experiment door and comprises an air pressure lifting push rod device arranged on one side of the experiment door and an elastic rubber strip arranged on one side of the experiment door. Through cooperation of the air pressure lifting push rod device and the elastic rubber strip, airtightness of the threshold-free laboratory door is achieved, the requirement for barrier-free passing of a robot or equipment is met, the problem that the airtightness is poor due to the traditional threshold-free design is solved, the elastic rubber strip is driven by the air pressure lifting push rod device and can move up and down, and the threshold-free laboratory door is convenient to use. A gap between the experiment door and the ground is dynamically filled, and the sealing effect is ensured. Meanwhile, the elastic deformability of the elastic rubber strip can adapt to the condition that the ground is tiny and uneven, and the sealing reliability is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of laboratory sealing devices, and in particular relates to a thresholdless laboratory door sealing device. Background Technology

[0002] High-purity magnesium and magnesium alloy smelting laboratories with a fully inert gas atmosphere are crucial facilities for addressing key technical challenges in the smelting and processing of metallic magnesium and magnesium-based alloys, including oxidation control and material quality enhancement. These laboratories aim to reduce oxidation inclusions, lower greenhouse gas emissions, improve the production environment, and enhance the performance and application quality of new magnesium-based materials. Through inert gas protection, material performance regulation, and process monitoring, they achieve efficient and high-quality production of new magnesium-based materials. The airtightness of the laboratory is paramount, and airtight devices are used to control this airtightness.

[0003] Existing sealing devices can ensure normal and good sealing when sealing laboratory walls, windows, and ceilings. However, due to process requirements, the passage doors frequently used in laboratories need to be designed without thresholds to ensure unobstructed passage for robots. The thresholdless design means that the airtightness of the bottom of the door relies on the contact between the laboratory door and the ground, which reduces the airtightness of the laboratory. To address this issue, we provide a thresholdless laboratory door sealing device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a thresholdless laboratory door sealing device, which solves the problem of poor sealing performance in existing sealing devices during use through the cooperation of a sealing mechanism and an elastic rubber strip.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model is a thresholdless laboratory door sealing device, including a wall, with a laboratory door movably connected to one side of the wall; a sealing mechanism is provided on one side of the laboratory door, the sealing mechanism including a pneumatic lifting push rod provided on one side of the laboratory door and an elastic rubber strip provided on one side of the laboratory door.

[0007] The present invention is further configured such that the sealing mechanism includes a channel steel disposed at the bottom of the pneumatic lifting push rod, and the channel steel is fixedly connected to the elastic rubber strip.

[0008] The present invention is further configured such that the sealing mechanism includes a counterweight block fixedly connected to the inside of the channel steel by a first fastening screw, and the bottom of the counterweight block is in contact with the channel steel.

[0009] The present invention is further configured such that mounting brackets are fixedly connected to the top and bottom of the pneumatic lifting push rod, and the mounting brackets are fixedly connected to the experimental door by a second fastening screw.

[0010] The present invention is further configured such that a controller is fixedly connected to one side of the wall, and a linkage control line is fixedly connected to one side of the controller.

[0011] The present invention is further configured such that the width of the elastic rubber strip is greater than the width of the experimental door, and the elastic rubber strip is in close contact with the experimental door.

[0012] The present invention has the following beneficial effects.

[0013] 1. This utility model achieves a tight seal for a thresholdless laboratory door through the combination of a pneumatic lifting actuator and an elastic sealing strip. This satisfies the need for unimpeded passage for robots or equipment while solving the problem of poor sealing caused by traditional thresholdless designs. Driven by the pneumatic lifting actuator, the elastic sealing strip can move up and down, dynamically filling the gap between the laboratory door and the ground to ensure a tight seal. Simultaneously, the elastic deformation capacity of the sealing strip can adapt to minor unevenness in the ground, improving the reliability of the seal.

[0014] 2. This utility model allows users to remotely or automatically control the movement of the pneumatic lifting actuator via a controller and linkage control line, enabling rapid opening and closing of the sealing mechanism. This improves the convenience and efficiency of laboratory operations. The design of the channel steel and counterweight increases the downward pressure, ensuring close contact between the elastic rubber strip and the ground. The design of the mounting bracket and fastening screws ensures the stability of the pneumatic lifting actuator and prevents operational deviation. The elastic rubber strip is removable and replaceable, simplifying maintenance and reducing operating costs.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a three-dimensional diagram of a thresholdless laboratory door sealing device.

[0018] Figure 2 A thresholdless laboratory door sealing device Figure 1 A magnified view of A in the middle.

[0019] In the attached diagram: 1. Wall; 2. Laboratory door; 3. Sealing mechanism; 31. Pneumatic lifting push rod; 32. Elastic rubber strip; 33. Channel steel; 34. Counterweight; 4. Mounting bracket; 5. Controller; 6. Linkage control line. Detailed Implementation

[0020] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1

[0022] Please see Figures 1-2 This utility model is a thresholdless laboratory door sealing device, including a wall 1, with a laboratory door 2 movably connected to one side of the wall 1; a sealing mechanism 3 is provided on one side of the laboratory door 2. During use, elastic rubber strips 32 can be added to both sides of the laboratory door 2 to achieve elastic sealing when closed. Elastic rubber strips 32 can also be added to the top of the laboratory door 2 frame to achieve elastic sealing when closed. The laboratory door 2 is movably connected to one side of the wall 1 by hinges to ensure that the laboratory door 2 can be opened and closed freely, realizing the door opening and closing function, and at the same time providing an installation base for the sealing mechanism 3. The sealing effect of the laboratory door 2 can be detected by an external air leakage detector. The sealing mechanism 3 includes a pneumatic lifting pusher 31 and an elastic rubber strip 32 located on one side of the laboratory door 2. The pneumatic lifting pusher 31 is symmetrically designed on the lower side of one side of the laboratory door 2, providing power to push the elastic rubber strip 32 to move up and down, realizing the sealing and unsealing of the bottom of the laboratory door 2. The elastic rubber strip 32 fills the gap between the laboratory door 2 and the ground through elastic deformation, realizing dynamic sealing.

[0023] Example 2

[0024] Please see Figures 1-2Based on Embodiment 1, the sealing mechanism 3 further includes a channel steel 33 disposed at the bottom of the pneumatic lifting pusher 31. The channel steel 33 is fixedly connected to the elastic rubber strip 32, and the elastic rubber strip 32 is fixedly connected to the surface of the channel steel 33. The channel steel 33 serves as the carrier of the counterweight 34, enhancing the downward pressure and ensuring that the elastic rubber strip 32 is in close contact with the ground. The sealing mechanism 3 also includes a counterweight 34 fixedly connected to the inside of the channel steel 33 by a first fastening screw. The bottom of the counterweight 34 is in contact with the channel steel 33. The counterweight 34 is a square metal rod used to increase the overall weight and improve the sealing effect. The width of both the channel steel 33 and the counterweight 34 is the same as the width of the experimental door 2. Similarly, mounting brackets 4 are fixedly connected to the top and bottom of the pneumatic lifting actuator 31. The mounting brackets 4 are used to ensure the stable installation of the pneumatic lifting actuator 31 and prevent displacement during operation. The mounting brackets 4 are fixedly connected to the experimental door 2 by the second fastening screw. A controller 5 is fixedly connected to one side of the wall 1. A linkage control line 6 is fixedly connected to one side of the controller 5. The controller 5 is connected to the two pneumatic lifting actuators 31 through the linkage control line 6 to control the action of the pneumatic lifting actuators 31 and realize the automated operation of the sealing mechanism 3. The width of the elastic rubber strip 32 is greater than the width of the experimental door 2, and the elastic rubber strip 32 is in close contact with the experimental door 2.

[0025] The working principle of this invention is as follows: When the experimental door 2 is closed, the controller 5 sends a signal to the pneumatic lifting push rod 31 via the linkage control line 6, driving the push rod to move downwards. The pneumatic lifting push rod 31 drives the counterweight 34, the channel steel 33, and the elastic rubber strip 32 fixed on the channel steel 33 to move downwards as a whole, making the elastic rubber strip 32 in close contact with the ground. Under pressure, the elastic rubber strip 32 undergoes elastic deformation, filling the gap between the door and the ground, achieving a dynamic seal.

[0026] The sealing effect is monitored in real time using an external air leakage detector. If an abnormal air leakage is detected, the laboratory floor can be cleaned to ensure it is free of debris and that the elastic rubber strip 32 is in effective and tight contact with the floor. The retraction of the elastic rubber strip 32 is also checked, and it is replaced promptly to maintain the sealing effect. When it is necessary to open the laboratory door 2, the controller 5 controls the pneumatic lifting push rod 31 to reset, causing the elastic rubber strip 32 to move upwards, releasing it from contact with the floor, thus opening the laboratory door 2. Through automated control and dynamic sealing technology, the airtightness problem of thresholdless laboratory doors is effectively solved, combining practicality and reliability, and is suitable for high-requirement scenarios such as high-purity magnesium and magnesium alloy smelting laboratories.

[0027] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A thresholdless laboratory door sealing device, comprising a wall (1), characterized in that: An experimental door (2) is movably connected to one side of the wall (1); A sealing mechanism (3) is provided on one side of the experimental door (2). The sealing mechanism (3) includes a pneumatic lifting pusher (31) provided on one side of the experimental door (2) and an elastic rubber strip (32) provided on one side of the experimental door (2).

2. The thresholdless laboratory door sealing device according to claim 1, characterized in that: The sealing mechanism (3) also includes a channel steel (33) disposed at the bottom of the pneumatic lifting push rod (31), and the channel steel (33) is fixedly connected to the elastic rubber strip (32).

3. The thresholdless laboratory door sealing device according to claim 2, characterized in that: The sealing mechanism (3) further includes a counterweight (34) fixedly connected to the inside of the channel steel (33) by a first fastening screw, the bottom of the counterweight (34) being in contact with the channel steel (33).

4. The thresholdless laboratory door sealing device according to claim 1, characterized in that: The top and bottom of the pneumatic lifting push rod (31) are fixedly connected to the mounting bracket (4), and the mounting bracket (4) is fixedly connected to the experimental door (2) by the second fastening screw.

5. The thresholdless laboratory door sealing device according to claim 1, characterized in that: A controller (5) is fixedly connected to one side of the wall (1), and a linkage control line (6) is fixedly connected to one side of the controller (5).

6. The thresholdless laboratory door sealing device according to claim 1, characterized in that: The width of the elastic rubber strip (32) is greater than the width of the experimental door (2), and the elastic rubber strip (32) is in close contact with the experimental door (2).

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