Clean room automatic door closing mechanism

CN224693267UActive Publication Date: 2026-08-28JILIN GUANGXINMING BUILDING DECORATION ENGINEERING CO LTD
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Patent Information

Application Number
CN202522164772.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-14
Publication Date
2026-08-28
Estimated Expiration
2035-10-14

AI Technical Summary

Technical Problem

[0004]上述公开的自动关门机构缺点在于:移动门沿着导轨滑动过程中造成的噪音非常大,影响洁净室的使用环境

Benefits of technology

[0012] The technical effects and advantages of this utility model are as follows: By extending an integrally formed sound-insulating lower stop from the front end of the upper track beam, and setting a first sound-insulating baffle strip on the inner side of the sound-insulating lower stop, and fixing and bonding fiber cotton sound-insulating strips to the inner side of the first sound-insulating baffle strip, a good sound insulation effect is achieved. When the track electric sliding seat slides along the linear track, it can greatly absorb the generated noise and optimize the working environment of the clean room.

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Abstract

The utility model discloses a clean room automatic door closing mechanism, including upper track crossbeam, lower track crossbeam, linear track and track electric sliding seat, the front end of upper track crossbeam extends the sound insulation down block of integrated down, and the inboard of sound insulation down block is provided with first sound insulation baffle strip, and the inboard fixed bonding fiber cotton sound insulation strip of first sound insulation baffle strip, and the end of first sound insulation baffle strip is provided with the positioning bolt, and first sound insulation baffle strip is connected through positioning bolt and sound insulation down block pin. The utility model discloses the sound insulation down block of integrated down extension of the front end of upper track crossbeam, and the inboard of sound insulation down block is provided with first sound insulation baffle strip, and the inboard fixed bonding fiber cotton sound insulation strip of first sound insulation baffle strip, and like this has good sound insulation effect, when track electric sliding seat is along linear track and slides, can greatly absorb the noise of producing, and has optimized the operation environment of clean room.
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Description

Technical Field

[0001] This utility model relates to the field of cleanroom device technology, and in particular to an automatic door closing mechanism for cleanrooms. Background Technology

[0002] Cleanrooms are enclosed spaces that control parameters such as air cleanliness, temperature, and humidity. They are widely used in industries such as electronics and pharmaceuticals, and their construction involves two key aspects: manufacturer selection and workshop design. Basic definition of a cleanroom: A closed space that comprehensively controls parameters such as air cleanliness, temperature, humidity, pressure, and noise. Its core function is to control the concentration of airborne particles and microorganisms.

[0003] The doors of cleanrooms are all driven by automatic closing mechanisms, which ensure that the doors close promptly after opening, eliminating the need for manual closing. Existing automatic closing mechanisms, such as the one disclosed in patent CN202926072U, include a sliding door, a guide rail, a left hanging wheel mechanism, a right hanging wheel mechanism, an opening positioner, a closing positioner, an opening limiter, and a tension spring mechanism. The left and right hanging wheel mechanisms are respectively located on the left and right sides of the guide rail; each mechanism contains a damping gear; the left and right hanging wheel mechanisms are slidably connected to the guide rail via guide grooves; and are fixedly connected to the sliding door. The opening and closing positioners are respectively located on the left and right sides above the guide rail; the opening limiter is located at the top left of the guide rail; and the tension spring mechanism is located at the top right of the guide rail. This solution overcomes the shortcomings of existing technologies by automatically closing the sliding door 3 seconds after it opens, ensuring the sealing effect of the cold aisle and achieving the effects of reducing operating costs and saving energy and reducing emissions.

[0004] The aforementioned automatic door closing mechanism has the following drawback: the sliding door generates significant noise as it slides along the guide rail, negatively impacting the cleanroom's operating environment. Utility Model Content

[0005] The purpose of this invention is to provide an automatic door closing mechanism for cleanrooms to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic door closing mechanism for a cleanroom, comprising an upper track beam, a lower track beam, a linear track, and a track electric sliding seat. The upper track beam and the lower track beam are respectively disposed at the upper beam end and the lower beam end of the cleanroom door. The linear track is bolted to the bottom end of the upper track beam without obstructing the track electric sliding seat from sliding linearly along the linear track. An integrally formed sound-insulating lower stop extends downward from the front end of the upper track beam. A first sound-insulating baffle strip is disposed on the inner side of the sound-insulating lower stop. A fiber cotton sound-insulating strip is fixedly bonded to the inner side of the first sound-insulating baffle strip. A positioning pin is disposed at the end of the first sound-insulating baffle strip. The first sound-insulating baffle strip is pinned to the sound-insulating lower stop through the positioning pin.

[0007] Preferably, one end of the upper track beam is provided with a longitudinal fixing frame that is connected to the lower track beam, and the surface of the longitudinal fixing frame is equipped with a rubber blocking strip.

[0008] Preferably, a wheel fixing frame is provided on the inner side of the lower track beam, and a pulley component capable of rolling along the lower track beam is installed at the bottom end of the wheel fixing frame.

[0009] Preferably, a pulley groove is provided at the bottom of the inner side of the lower track beam, and the pulley is located in the pulley groove and can slide along the pulley groove.

[0010] Preferably, the inner end of the lower track beam is provided with a position switch seat connected to the longitudinal fixing frame, the bottom end of the position switch seat is provided with an integrally formed positioning plate, the positioning plate is connected to the inner side of the lower track beam, and the position switch seat is provided with a position switch component at the buckle.

[0011] Preferably, the top of the electric sliding seat of the track is equipped with a door mounting sleeve that can be connected to the cleanroom door. The front end of the door mounting sleeve is connected to the cleanroom door, and the rear end of the door mounting sleeve is equipped with a marking rod. One end of the marking rod is equipped with a ball.

[0012] The technical effects and advantages of this utility model are as follows: By extending an integrally formed sound-insulating lower stop from the front end of the upper track beam, and setting a first sound-insulating baffle strip on the inner side of the sound-insulating lower stop, and fixing and bonding fiber cotton sound-insulating strips to the inner side of the first sound-insulating baffle strip, a good sound insulation effect is achieved. When the track electric sliding seat slides along the linear track, it can greatly absorb the generated noise and optimize the working environment of the clean room. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of the sound insulation baffle strip of this utility model.

[0015] Figure 3 This is a structural schematic diagram of the pulley component of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the electric sliding seat of the track of this utility model.

[0017] In the diagram: 1. Upper track beam; 2. Lower track beam; 3. Longitudinal fixing frame; 4. Rubber blocking strip; 5. Linear track; 6. Track electric sliding seat; 7. Door mounting sleeve; 8. Sound insulation lower stop; 9. Wheel fixing bracket; 10. Pulley component; 11. Pulley groove; 12. Position switch seat; 13. Position switch component; 14. Positioning plate; 15. Sound insulation baffle strip; 16. Fiber cotton sound insulation strip; 17. Positioning pin; 18. Marking rod; 19. Rolling ball. Detailed Implementation

[0018] 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.

[0019] This utility model provides, for example Figure 1-4 The image shows an automatic door closing mechanism for a cleanroom. Example 1: The automatic door closing mechanism includes an upper track beam 1, a lower track beam 2, a linear track 5, and a track electric sliding seat 6. The upper track beam 1 and the lower track beam 2 are respectively set at the upper beam end and the lower beam end of the cleanroom door. The linear track 5 is bolted to the bottom end of the upper track beam 1 without obstructing the linear sliding seat 6 from sliding linearly along the linear track 5. One end of the upper track beam 1 is provided with a longitudinal fixing frame 3 connected to the lower track beam 2. A rubber blocking strip 4 is installed on the surface of the longitudinal fixing frame 3 to prevent the cleanroom door from hitting the longitudinal fixing frame 3. The front end of the upper track beam 1 extends downward with an integrally formed soundproof lower baffle 8. A first soundproof baffle strip 15 is provided on the inner side of the soundproof lower baffle 8. A fiber cotton soundproof strip 16 is fixedly bonded to the inner side of the first soundproof baffle strip 15. A positioning pin 17 is provided at the end of the first soundproof baffle strip 15. The first soundproof baffle strip 15 is pinned to the soundproof lower baffle 8 through the positioning pin 17.

[0020] When in use, since the first sound insulation baffle strip 15 and the fiber cotton sound insulation strip 16 are both distributed along the linear direction of the linear track 5, the electric sliding seat 6 of the track can reduce noise during the sliding process, thus ensuring the quiet effect of the clean room.

[0021] Example 2: The automatic door closing mechanism includes an upper track beam 1, a lower track beam 2, a linear track 5, and a track electric sliding seat 6. The upper track beam 1 and the lower track beam 2 are respectively located at the upper and lower beam ends of the cleanroom door. The linear track 5 is bolted to the bottom end of the upper track beam 1 without obstructing the linear sliding seat 6 from sliding linearly along the linear track 5. One end of the upper track beam 1 is provided with a longitudinal fixing frame 3 connected to the lower track beam 2. A rubber blocking strip 4 is installed on the surface of the longitudinal fixing frame 3. A wheel fixing frame 9 is provided on the inner side of the lower track beam 2. A pulley component 10 that can roll along the lower track beam 2 is installed at the bottom end of the wheel fixing frame 9. A pulley groove 11 is opened at the bottom of the inner side of the lower track beam 2. The pulley component 10 is located in the pulley groove 11 and can slide along the pulley groove 11. By having the pulley component 10 slide along the pulley groove 11, the sliding process is smoother, reducing the noise generated by friction.

[0022] Example 3: The automatic door closing mechanism includes an upper track beam 1, a lower track beam 2, a linear track 5, and a track electric sliding seat 6. The upper track beam 1 and the lower track beam 2 are respectively set at the upper beam end and the lower beam end of the clean room door. The linear track 5 is bolted to the bottom end of the upper track beam 1 and does not obstruct the track electric sliding seat 6 from sliding linearly along the linear track 5. One end of the upper track beam 1 is provided with a longitudinal fixing frame 3 connected to the lower track beam 2. The surface of the longitudinal fixing frame 3 is equipped with a rubber blocking strip 4. A wheel fixing frame 9 is provided on the inner side of the lower track beam 2. A pulley component 10 that can roll along the lower track beam 2 is installed at the bottom end of the wheel fixing frame 9. A pulley groove 11 is opened at the bottom of the inner side of the lower track beam 2. The pulley component 10 is located in the pulley groove 11 and can slide along the pulley groove 11. The inner end of the lower track beam 2 is provided with a position switch seat 12 that connects to the longitudinal fixing frame 3. The bottom end of the position switch seat 12 is provided with an integrally formed positioning plate 14. The positioning plate 14 is connected to the inner side of the lower track beam 2. A position switch component 13 is provided at the buckle of the position switch seat 12. The position switch component 13 is provided to facilitate the cleanroom door to close accurately.

[0023] Example 4: The automatic door closing mechanism includes an upper track beam 1, a lower track beam 2, a linear track 5, and a track electric sliding seat 6. The upper track beam 1 and the lower track beam 2 are respectively located at the upper and lower beam ends of the cleanroom door. The linear track 5 is bolted to the bottom end of the upper track beam 1 without obstructing the linear sliding seat 6 from sliding linearly along the linear track 5. One end of the upper track beam 1 is provided with a longitudinal fixing frame 3 connected to the lower track beam 2. A rubber blocking strip 4 is installed on the surface of the longitudinal fixing frame 3. The inner side is provided with a wheel fixing frame 9, and the bottom end of the wheel fixing frame 9 is equipped with a pulley 10 that can roll along the lower track beam 2; the bottom of the inner side of the lower track beam 2 is provided with a pulley groove 11, and the pulley 10 is located in the pulley groove 11 and can slide along the pulley groove 11; the top of the track electric sliding seat 6 is equipped with a door mounting sleeve 7 that can be connected to the cleanroom door. The front end of the door mounting sleeve 7 is connected to the cleanroom door, and the rear end of the door mounting sleeve 7 is equipped with a marking rod 18, and one end of the marking rod 18 is equipped with a ball 19. By setting the marking rod 18 and the ball 19, the stability of the movement of the track electric sliding seat 6 is ensured.

[0024] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. An automatic door closing mechanism for a cleanroom, comprising an upper track beam (1), a lower track beam (2), a linear track (5), and a track electric sliding seat (6), wherein the upper track beam (1) and the lower track beam (2) are respectively disposed at the upper beam end and the lower beam end of the cleanroom door, and the linear track (5) is bolted to the bottom end of the upper track beam (1) without obstructing the linear sliding seat (6) from sliding linearly along the linear track (5), characterized in that, The front end of the upper track beam (1) extends downward to form an integrally formed sound insulation lower baffle (8). The inner side of the sound insulation lower baffle (8) is provided with a first sound insulation baffle strip (15). The inner side of the first sound insulation baffle strip (15) is fixedly bonded with a fiber cotton sound insulation strip (16). The end of the first sound insulation baffle strip (15) is provided with a positioning pin (17). The first sound insulation baffle strip (15) is pinned to the sound insulation lower baffle (8) through the positioning pin (17).

2. The cleanroom automatic door closing mechanism according to claim 1, characterized in that, One end of the upper track beam (1) is provided with a longitudinal fixing frame (3) connected to the lower track beam (2), and a rubber blocking strip (4) is installed on the surface of the longitudinal fixing frame (3).

3. The cleanroom automatic door closing mechanism according to claim 1, characterized in that, The inner side of the lower track beam (2) is provided with a wheel fixing frame (9), and the bottom end of the wheel fixing frame (9) is equipped with a pulley (10) that can roll along the lower track beam (2).

4. The cleanroom automatic door closing mechanism according to claim 3, characterized in that, The bottom of the inner side of the lower track beam (2) is provided with a pulley groove (11), and the pulley component (10) is located in the pulley groove (11) and can slide along the pulley groove (11).

5. The cleanroom automatic door closing mechanism according to claim 2, characterized in that, The inner end of the lower track beam (2) is provided with a position switch seat (12) connected to the longitudinal fixing frame (3). The bottom end of the position switch seat (12) is provided with an integrally formed positioning plate (14). The positioning plate (14) is connected to the inner side of the lower track beam (2). The position switch seat (12) is provided with a position switch component (13) at the buckle.

6. The cleanroom automatic door closing mechanism according to claim 1, characterized in that, The top of the electric sliding seat (6) of the track is equipped with a door mounting sleeve (7) that can be connected to the clean room door. The front end of the door mounting sleeve (7) is connected to the clean room door. The rear end of the door mounting sleeve (7) is equipped with a marking rod (18). One end of the marking rod (18) is equipped with a ball (19).

Citation Information

Patent Citations

  • Automatic self-closing door mechanism

    CN202926072U