Airtight clean room door

Abstract

The present invention relates to the technical field of cleanroom doors, specifically an airtight cleanroom door, comprising an outer frame and a door body, an inlet and outlet are provided in the middle of the outer frame, a door body movable cavity is provided in the outer frame on the left and right sides of the inlet and outlet, the two door body movable cavities are connected to the inlet and outlet, a door body is provided in the two door body movable cavities for sliding, a telescopic device is respectively installed and fixed in the middle of the left and right sides of the outer frame, and the two telescopic devices are respectively connected and fixed to the door body, a plurality of ball bearings are installed on the top and bottom of the two door bodies, and guide grooves matching with the ball bearings are respectively provided on the inner top and inner bottom of the outer frame. The present invention has reasonable structural design, good operation stability, and also has the function of dust removal and conveying of articles, which is conducive to promotion.

Description

Technical Field

[0001] The invention relates to the technical field of clean room doors, in particular to an airtight clean room door. Background Art

[0002] Cleanroom doors are used in clean rooms with high cleanliness requirements. Minimizing dust accumulation and ensuring the sealing of cleanroom doors are one of the important ways to improve the cleanliness of cleanrooms.

[0003] The existing clean room door has a traditional structure design, poor operating stability, and single function, and needs to be improved. Therefore, in view of the above situation, it is urgent to develop an airtight clean room door to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide an airtight purification door to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] An airtight purification door comprises an outer frame and a door body, wherein an inlet and outlet passing through the outer frame are provided in the middle part, and a door body movable cavity is provided in the outer frame on the left and right sides of the inlet and outlet respectively, and the two door body movable cavities are both connected with the inlet and outlet, and a door body is respectively provided in the two door body movable cavities for sliding cooperation, a telescopic device is respectively installed and fixed in the middle part of the left and right sides of the outer frame, and the two telescopic devices are respectively connected and fixed to the door body, a plurality of ball bearings are installed on the top and bottom of the two door bodies, and guide grooves cooperating with the ball bearings are respectively provided on the inner top and inner bottom of the outer frame.

[0007] As a further solution of the present invention: a window is provided on each of the two door bodies.

[0008] As a further solution of the present invention: sealing strips are respectively installed on the opposite sides of the two door bodies.

[0009] As a further solution of the present invention: the sealing strip includes a semicircular portion and an extension portion, the semicircular portion and the extension portion are made of elastic material, the extension portion is integrally formed and arranged on the front side or rear side of the semicircular portion, and the extension portions of the sealing strips on the two door bodies are located on different sides.

[0010] As a further solution of the present invention: a circular article conveying port is also provided on the door body, and elastic sealing components are respectively provided on the front and rear sides of the article conveying port, and a plurality of bristles are circumferentially installed on the inner wall of the article conveying port, and an annular cavity is provided on the outer side of the article conveying port in the door body, and the annular cavity is connected with the article conveying port through circumferentially distributed dust removal holes; a negative pressure dust removal device is fixedly installed on the outer side of the outer frame, and the negative pressure dust removal device is connected with the negative pressure dust removal channel through a hose, and the negative pressure dust removal channel is provided in the door body, one end of the negative pressure dust removal channel is connected with the hose, and the other end of the negative pressure dust removal channel is connected with the annular cavity.

[0011] As a further solution of the present invention: the length of the bristles is smaller than the radius of the article conveying port.

[0012] As a further solution of the present invention: the elastic sealing assembly includes a plurality of elastic sheets distributed circumferentially, the elastic sheets are made of rubber material, the elastic sheets are fan-shaped structures, and two adjacent elastic sheets are magnetically connected and fixed.

[0013] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0014] 1) By installing the door body in the outer frame and arranging balls at the top and bottom of the door body, the reliability of the movement of the door body is improved, and the door body can be driven to move stably left and right through the telescopic device; through the structural setting of the sealing strip, when the two door bodies are closed, the semicircular ring part is first squeezed and deformed, and the elongated part is tilted and abuts against the semicircular ring part of the other sealing strip, thereby improving the sealing effect of the connection between the two door bodies;

[0015] 2) By opening an article conveying port on the door body, the conveying of articles is facilitated; the elastic sealing components on the front and rear sides of the article conveying port have a certain sealing and dustproof effect; the bristles on the inner wall of the article conveying port can clean the dust on the surface of the article; by controlling the operation of the negative pressure dust removal device, the dust removal hole can generate negative pressure due to the connection effect of the hose, the negative pressure dust removal channel and the annular cavity, which has a good negative pressure dust removal effect, avoids the introduction of new dust into the room when the articles are conveyed, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0018] Figure 3 It is a schematic diagram of the partial structure of the door body in an embodiment of the present invention.

[0019] Figure 4It is a schematic diagram of a partial top-view cross-sectional structure of a door body in an embodiment of the present invention.

[0020] Figure 5 for Figure 1 A is an enlarged cross-sectional structural diagram.

[0021] Figure 6 Schematic diagram of the structure of the elastic sealing assembly in an embodiment of the present invention.

[0022] In the figure: 1- telescopic device, 2- negative pressure dust removal device, 3- outer frame, 4- hose, 5- door body movable cavity, 6- inlet and outlet, 7- article conveying port, 8- door body, 9- guide groove, 10- window, 11- ball, 12- elastic sealing component, 13- sealing strip, 14- semicircular ring part, 15- extension part, 16- negative pressure dust removal channel, 17- annular cavity, 18- dust removal hole, 19- bristles, 20- elastic sheet. DETAILED DESCRIPTION

[0023] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] Example 1

[0026] See also Figure 1-6 In an embodiment of the present invention, an airtight purification door comprises an outer frame 3 and a door body 8, wherein a rectangular inlet and outlet 6 which passes through the outer frame 3 is provided in the middle part, and a door body movable cavity 5 is provided in the outer frame 3 on the left and right sides of the inlet and outlet 6, respectively. The two door body movable cavities 5 are both connected with the inlet and outlet 6, and a door body 8 is provided in the two door body movable cavities 5 respectively in cooperation with sliding. A telescopic device 1 is respectively installed and fixed in the middle part of the left and right sides of the outer frame 3, and the two telescopic devices 1 are respectively connected and fixed with the door body 8, and the door body 8 can be driven to move left and right by the telescopic device 1, so as to play the role of opening and closing the door body 8, and a plurality of balls 11 are installed on the top and bottom of the two door bodies 8, and the inner top and inner bottom of the outer frame 3 are respectively provided with guide grooves 9 which cooperate with the balls 11, and the resistance of the door body 8 to movement is reduced by the setting of the guide grooves 9 and the balls 11, and in actual application, the edge of the inlet and outlet 6 is also provided with a sealing strip which cooperates with the door body 8 to prevent the entry of dust.

[0027] Further, such as Figure 1-2As shown, each of the two door bodies 8 is provided with a viewing window 10, through which observation is convenient.

[0028] Further, such as Figure 3-4 As shown, sealing strips 13 are respectively installed on the opposite sides of the two door bodies 8, and the sealing strip 13 includes a semicircular ring portion 14 and an extension portion 15. The semicircular ring portion 14 and the extension portion 15 are made of elastic material, and the extension portion 15 is integrally formed and arranged on the front side or the rear side of the semicircular ring portion 14, and the extension portion 15 of the sealing strips 13 on the two door bodies 8 are located on different sides. Through the arrangement of the extension portion 15, the sealing performance of the connection between the two door bodies 8 can be improved.

[0029] Example 2

[0030] See also Figure 1 , 5 and 6, the difference between this embodiment and embodiment 1 is that:

[0031] In this embodiment, a circular article conveying port 7 is further provided on the door body 8, and elastic sealing components 12 are respectively provided on the front and rear sides of the article conveying port 7. The elastic sealing components 12 play a certain sealing role to prevent dust from passing through. A plurality of bristles 19 are circumferentially installed on the inner wall of the article conveying port 7, and the length of the bristles 19 is less than the radius of the article conveying port 7. An annular cavity 17 is provided on the outer side of the article conveying port 7 in the door body 8, and the annular cavity 17 is connected to the article conveying port 7 through dust removal holes 18 distributed circumferentially. A negative pressure dust removal device 2 is fixedly installed on the outer side of the outer frame 3, and the negative pressure dust removal device 2 is connected to the negative pressure dust removal channel 16 through the hose 4. The negative pressure dust removal channel 16 is provided in the door body 8, and one end of the negative pressure dust removal channel 16 is connected to the hose 4, and the other end of the negative pressure dust removal channel 16 is connected to the annular cavity 17.

[0032] Further, such as Figure 6 As shown, the elastic sealing assembly 12 includes a plurality of elastic sheets 20 distributed circumferentially. The elastic sheets 20 are made of rubber material. The elastic sheets 20 are fan-shaped structures, and two adjacent elastic sheets 20 are magnetically connected and fixed.

[0033] The airtight clean room door has the following outstanding advantages in practical application:

[0034] 1) By installing the door body 8 in the outer frame 3 and arranging the balls 11 at the top and bottom of the door body 8, the movement reliability of the door body 8 is improved, and the door body 8 can be driven to move stably left and right through the telescopic device 1; through the structural setting of the sealing strip 13, when the two door bodies 8 are closed, the semicircular ring portion 14 is first squeezed and deformed, and the extension portion 15 is tilted and abuts against the semicircular ring portion 14 of the other sealing strip 13, thereby improving the sealing effect of the connection between the two door bodies 8;

[0035] 2) By opening an article conveying port 7 on the door body 8, the conveying of articles is facilitated; the elastic sealing components 12 on the front and rear sides of the article conveying port 7 have a certain sealing and dustproof effect; the bristles 19 on the inner wall of the article conveying port 7 can clean the dust on the surface of the article; by controlling the operation of the negative pressure dust removal device 2, due to the communication effect of the hose 4, the negative pressure dust removal channel 16 and the annular cavity 17, the dust removal hole 18 can generate negative pressure, which has a good negative pressure dust removal effect, avoids the introduction of new dust into the room when the article is conveyed, and is safe and reliable.

[0036] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An airtight clean room door, comprising an outer frame (3) and a door body (8), characterized in that: An inlet and outlet (6) which passes through the outer frame (3) is provided in the middle of the outer frame (3), and a door body movable cavity (5) is provided in the outer frame (3) on the left and right sides of the inlet and outlet (6), and the two door body movable cavities (5) are both connected to the inlet and outlet (6), and a door body (8) is provided in the two door body movable cavities (5) for sliding cooperation, and a telescopic device (1) is respectively installed and fixed in the middle of the left and right sides of the outer frame (3), and the two telescopic devices (1) are respectively connected and fixed to the door body (8), and a plurality of balls (11) are installed on the top and bottom of the two door bodies (8), and the inner top and inner bottom of the outer frame (3) are respectively provided with guide grooves (9) which cooperate with the balls (11); The door body (8) is also provided with a circular article delivery opening (7), the front and rear sides of the article delivery opening (7) are respectively provided with elastic sealing components (12), and a plurality of bristles (19) are circumferentially installed on the inner wall of the article delivery opening (7); An annular cavity (17) is provided in the door body (8) outside the article conveying port (7), and the annular cavity (17) is connected to the article conveying port (7) through dust removal holes (18) distributed in the circumferential direction; A negative pressure dust removal device (2) is fixedly mounted on the outer side of the outer frame (3); the negative pressure dust removal device (2) is connected to a negative pressure dust removal channel (16) via a hose (4); the negative pressure dust removal channel (16) is opened in the door body (8); one end of the negative pressure dust removal channel (16) is connected to the hose (4), and the other end of the negative pressure dust removal channel (16) is connected to the annular cavity (17); The length of the bristles (19) is smaller than the radius of the article conveying port (7); The elastic sealing component (12) comprises a plurality of elastic sheets (20) distributed in a circumferential direction, the elastic sheets (20) are made of rubber material, the elastic sheets (20) are fan-shaped structures, and two adjacent elastic sheets (20) are magnetically connected and fixed.

2. The airtight clean room door according to claim 1, characterized in that: A viewing window (10) is provided on each of the two door bodies (8).

3. The airtight clean room door according to claim 2, characterized in that: Sealing strips (13) are also installed on opposite sides of the two door bodies (8).

4. The airtight clean room door according to claim 3, characterized in that: The sealing strip (13) comprises a semicircular portion (14) and an extension portion (15), the semicircular portion (14) and the extension portion (15) are made of elastic material, the extension portion (15) is integrally formed and arranged on the front side or the rear side of the semicircular portion (14), and the extension portions (15) of the sealing strips (13) on the two door bodies (8) are located on different sides.

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