A linear movable clean room automatic door
By designing a linear mobile clean room automatic door, the instability of the clean room environment when staff enter and exit is solved, the pressure difference between the clean room and the stability of air flow direction is achieved, and the risk of cross-contamination is reduced.
Patent Information
- Application Number
- CN202010491644.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-02
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2040-06-02
AI Technical Summary
When the staff enters and exits the clean room, the environment is inevitably disturbed, resulting in unstable relative pressure difference between the clean room and air flow direction, increasing the risk of cross-contamination.
A linear mobile clean room automatic door is designed, including an automatic door frame and a guide rail. The automatic door trolley cooperates with the guide rail to achieve uniform linear movement under the power system drive.
Through the uniform linear movement of the automatic door trolley, air disturbances during staff entering and exiting are alleviated, the stability of the clean room environment is maintained, and the instability of the pressure difference between the clean room and the air flow direction is reduced.
Smart Images
Figure CN111535715B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field related to clean rooms, and in particular to an automatic door for clean rooms, and in particular to a linear movable automatic door for clean rooms. Background Art
[0002] At present, in the pharmaceutical industry, its production workshops are often divided into clean rooms with different functions and cleanliness levels; the higher the cleanliness level, the higher the absolute pressure difference of the clean room, and the lower the cleanliness level, the lower the absolute pressure difference of the clean room. In this way, when the clean room is in normal use or the airtightness of the clean room is damaged (such as opening the door), the air can flow from the clean room with a high cleanliness level to the clean room with a low cleanliness level, so that the clean room with a high cleanliness level will not be polluted by the air in the clean room with a low cleanliness level;
[0003] However, no matter whether the clean room uses an ordinary door or an automatic door, the staff always have to go through the process of opening and closing when entering and exiting the clean room. Whether it is an ordinary door or an automatic door, during this process of opening and closing, the door opening changes from time to time, and the absolute pressure difference and air flow direction of the clean room will become unstable. For clean rooms with ordinary doors, the impact on the absolute pressure difference and air flow direction of the clean room is more serious because the door opening and closing speed is uncontrollable.
[0004] It can be seen that the environment of the clean room is inevitably disturbed when staff enter and exit. The sudden change in relative pressure difference between clean rooms and the sudden change in air flow direction bring the risk of cross-contamination. Summary of the invention
[0005] The object of the present invention is to provide a linear movable clean room automatic door to solve the problems mentioned in the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solutions:
[0007] A clean room automatic door, comprising an automatic door frame and a guide track; Figure 4 As shown, an automatic door trolley is arranged on the guide track. Figure 3 As shown, the automatic door trolley includes a pedal, a right baffle, a top plate and a left baffle, and the pedal, the right baffle, the top plate and the left baffle are fixedly connected to each other to form a rectangular frame. A guide wheel is arranged below the automatic door trolley and the automatic door trolley cooperates with the guide track through the guide wheel; Figure 1As shown, the automatic door frame is composed of a left panel, a front panel, a right panel and a rear panel. The left panel, the front panel, the right panel and the rear panel are fixedly connected to each other to form a rectangular frame. Each panel is made of a plate that meets the cleanliness level. For ease of installation, the height of the automatic door frame is designed to be the same as the clean room partition. During installation, the automatic door frame and the clean room are installed on the same ceiling; an entrance channel door frame and a safety door frame are provided on the front panel, and an entry call switch and a light switch are installed on the front panel. The entry call switch and the light switch are located on the same side of the entrance channel door frame; as shown Figure 2 As shown, an exit channel door frame and an exit call switch are provided on the rear panel, and the exit call switch is located on one side of the exit channel door frame.
[0008] like Figure 1 , 2 As shown, the door frame sizes of the entrance passage door frame, the safety door frame and the exit passage door frame are equal in height and width, the distance between the left frame surface of the entrance passage door frame and the inner side surface of the left side panel, the distance between the right frame surface of the safety door frame and the inner side surface of the right side panel, and the distance between the right frame surface of the exit passage door frame and the inner side surface of the right side panel are all equal, and the distance values are greater than the thickness of the left baffle and the right baffle of the automatic door trolley. In addition, the distance between the right frame surface of the entrance passage door frame and the left frame surface of the safety door frame is greater than the widths of the above-mentioned door frames.
[0009] like Figure 3 , 4 As shown, four guide wheels are installed at the bottom of the pedal. After the guide wheels and the pedal are installed, they are easy to bear the weight of the human body. The outer surfaces of the pedal, right baffle, top plate and left baffle are all made of sanitary stainless steel panels. This design is easy to clean and rust-proof; the four guide wheels are made of plastic material, which helps to reduce wear. After the guide wheels are installed, the automatic door trolley can move in a straight line along the guide track. A trolley running switch is installed on the inner side of the left baffle as the start-up input signal of the automatic door trolley.
[0010] like Figure 4 , 5 As shown, the guide rail includes a guide rail A and a guide rail B. The guide rail A and the guide rail B are parallel to each other and are installed in the automatic door frame body with the same bottom surface. The length of the guide rail A and the guide rail B is equal to the length of the inner frame of the automatic door frame. The width of the outer side of the guide rail A and the guide rail B is less than the body thickness of the automatic door trolley. Both guide rails are made of sanitary stainless steel. Such a design is conducive to cleaning and rust prevention; the width between the inner side surfaces of the right baffle and the left baffle is equal to the door frame width of the entrance channel door frame, the safety door door frame and the exit channel door frame; the body thickness of the automatic door trolley is less than the inner frame width of the automatic door frame, and the distance between the bottom surface of the guide rail and the inner side surface of the top plate is equal to the door frame height of the entrance channel door frame, the safety door door frame and the exit channel door frame.
[0011] like Figure 5As shown, the clean room automatic door is arranged in the clean area, and the clean area includes the clean area floor, the clean room ceiling, partition A and partition B. Clean room A and clean room B are arranged on both sides of partition B. The automatic door frame is arranged on the clean area floor, and the front panel and the rear panel are flush with partition A and partition B respectively. It should be noted here that clean room A and clean room B are respectively separated by partition A and partition B and the automatic door frame.
[0012] like Figure 5 As shown, the guide rail and the automatic door trolley are centrally installed inside the automatic door frame, and the guide rail is fixed to the ground of the clean area. In this way, the automatic door trolley will have the characteristic of reciprocating along the guide rail inside the automatic door frame; the automatic door frame matching the A partition and the automatic door frame matching the B partition are respectively provided with an A safety door and a B safety door, which are respectively hinged with the safety door frame; the thickness of the A safety door and the B safety door are equal to the thickness of the safety door frame, and the installed A safety door and the B safety door are sealed with the safety door frame in the closed state, providing an emergency passage for the staff in emergency situations such as automatic door failure or power outage.
[0013] Specifically, after all the installation is completed, the automatic door trolley is enclosed in the space surrounded by the automatic door frame, the clean room ceiling and the clean room floor; it is further stipulated that the left end parking position of the automatic door trolley is the position when the inner frame of the automatic door trolley coincides with the door frame of the entrance channel, and the right end parking position is the position when the inner frame of the automatic door trolley coincides with the door frame of the exit channel; in this way, the automatic door trolley will have the characteristics of reciprocating linear movement between the left end parking position and the right end parking position under the drive of the power system; (the power system of the automatic door trolley is not drawn, and the function of the power system is to provide power to the automatic door trolley, which is conducive to realizing the predetermined uniform linear movement under the control of the control system, and is mainly controlled by a PLC control cabinet);
[0014] Referring to the above installation features, it can be seen that no matter the automatic door trolley is in the left end parking position, the right end parking position, or any position in between, the communication path between the entrance channel door frame and the exit channel door frame is either blocked by the right baffle of the automatic door trolley (see Figure 3 ) or blocked by the left baffle of the automatic door trolley (see Figure 3 ) or is blocked by the two baffles at the same time; according to the above-mentioned dimensional relationship, the edge surfaces of the left baffle or the right baffle that plays a blocking role on the upper and lower left and right sides respectively form a gap group with a constant size with the lower surface of the clean room ceiling, the clean room floor, the inner side of the front panel, and the inner side of the rear panel, and the gap group always exists; it can be further known that the air in clean room A is connected with the air in clean room B through the constant gap group;
[0015] by Figure 5For example, the working principle of the present invention is:
[0016] (1) If a staff member wants to enter clean room B to work, he / she should first turn on the light switch 59 and then turn on the entry call switch before walking to the door frame of the entrance passage, and wait for the automatic door trolley to stop at the left end. If the automatic door trolley has already stopped at the left end, there is no need to turn on the entry call switch.
[0017] (2) The staff steps on the pedal of the automatic door trolley and turns on the trolley operation switch of the automatic door trolley. The automatic door trolley will move at a constant speed carrying the staff to the right end parking position under the control of the control system until it stops after reaching the right end parking position;
[0018] (3) After the automatic door trolley stops at the right end, the staff walks out from the pedal and enters clean room A;
[0019] (4) The staff enters clean room B and starts working in the same way;
[0020] (5) If the staff member wants to exit the relevant clean room, turn on the corresponding exit call switch (see Figure 2 ); If the automatic door trolley has stopped at the right end, there is no need to turn on the exit call switch. Step on the pedal of the automatic door trolley, turn on the trolley running switch to start the automatic door trolley, and the trolley will move to the left. After arriving at the left end parking position, the staff can realize this exit.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] (1) When workers enter and exit the clean room through the automatic door of this clean room, the automatic door trolley has the characteristic of adjustable speed and uniform linear movement, which makes the automatic door trolley run smoothly, thereby reducing the air disturbance caused by the operation of the trolley when the workers enter and exit;
[0023] (2) When the staff enters and exits the clean room through the automatic door of this clean room, the gap group around the automatic door trolley is relatively constant, and the projected area of the gap group does not increase or decrease due to the change of the position of the automatic door trolley. If the constant gap group is understood as the opening of the door, then the opening of the automatic door trolley is constant whether it is static or dynamic; that is to say, when the staff enters and exits the clean room through the automatic door of this clean room, the clean room environment is not disturbed because the door opening is constant, which better solves the problem of absolute pressure difference in the clean room and stability of air flow. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the forward structure of the passage door frame;
[0025] Figure 2 This is a schematic diagram of the back structure of the passage door frame;
[0026] Figure 3 This is a structural schematic diagram of the automatic door trolley of the present invention;
[0027] Figure 4 This is a schematic diagram of the connection between the automatic door trolley and the guide rail of the present invention;
[0028] Figure 5 It is a schematic diagram of the installation effect of the present invention.
[0029] In the figure:
[0030] 51. Left side panel, 52. Front panel, 53. Right side panel, 54. Rear panel, 55. Entry door frame, 56. Safety door frame, 57. Exit door frame, 58. Entry call switch; 59. Light switch, 60. Exit call switch;
[0031] 81. A partition, 82. A clean room, 83. B partition, 84. B clean room, 85. Clean room ceiling, 86. Clean room floor, 87. A safety door, 88. B safety door
[0032] 101. Guide wheel, 102. Pedal, 103. Right baffle, 104. Top plate, 105. Left baffle, 106. Trolley running switch, 107. Guide rail A, 108. Guide rail B. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0034] See also Figures 1 to 5 , the present invention provides a technical solution:
[0035] A clean room automatic door, comprising an automatic door frame and a guide track; Figure 4 As shown, an automatic door trolley is arranged on the guide track. Figure 3 As shown, the automatic door trolley includes a pedal 102, a right baffle 103, a top plate 104 and a left baffle 105.
[0036] The right baffle 103, the top plate 104 and the left baffle 105 are fixedly connected to each other to form a rectangular frame, and a guide wheel 101 is arranged below the automatic door trolley and the automatic door trolley cooperates with the guide track through the guide wheel 101; Figure 1As shown, the automatic door frame is composed of a left side plate 51, a front panel 52, a right side plate 53 and a rear panel 54. The left side plate 51, the front panel 52, the right side plate 53 and the rear panel 54 are fixedly connected to each other to form a rectangular frame. Each plate is made of a plate that meets the cleanliness level. For ease of installation, the height of the automatic door frame is designed to be the same as the height of the clean room partition. During installation, the automatic door frame and the clean room are installed on the same ceiling; an entry channel door frame 55 and a safety door frame 56 are provided on the front panel 52, and an entry call switch 58 and a light switch 59 are installed on the front panel 52. The entry call switch 58 and the light switch 59 are located on the same side of the entry channel door frame 55; as shown in FIG. Figure 2 As shown, an exit passage door frame 57 and an exit call switch 60 are provided on the rear panel 54 , and the exit call switch 60 is located on one side of the exit passage door frame 57 .
[0037] like Figure 1 , 2 As shown, the door frame sizes of the entrance channel door frame 55, the safety door frame 56 and the exit channel door frame 57 are equal in height and width, and the distance between the left frame surface of the entrance channel door frame 55 and the inner side surface of the left side panel 51, the distance between the right frame surface of the safety door frame 56 and the inner side surface of the right side panel 53, and the distance between the right frame surface of the exit channel door frame 57 and the inner side surface of the right side panel 53 are equal, and the distance values are greater than the thickness of the left baffle and the right baffle of the automatic door trolley. In addition, the distance between the right frame surface of the entrance channel door frame and the left frame surface of the safety door frame is greater than the widths of the above-mentioned door frames.
[0038] like Figure 3 , 4 As shown, four guide wheels 101 are installed at the bottom of the pedal 102. After the guide wheels and the pedal are installed, they are easy to bear the weight of the human body. The outer surfaces of the pedal 102, the right baffle 103, the top plate 104 and the left baffle 105 are all made of sanitary stainless steel panels. This design is easy to clean and rust-proof; the four guide wheels 101 are made of plastic material, which is conducive to reducing wear. After the guide wheels 101 are installed, it is convenient for the automatic door trolley to move in a straight line along the guide track. The inner side of the left baffle 105 is installed with a trolley running switch 106 as the start-up operation input signal of the automatic door trolley.
[0039] like Figure 4 , 5As shown, the guide rails include a guide rail 107 and a guide rail B 108, which are parallel to each other and installed in the automatic door frame body with the same bottom surface. The length of the guide rails A 107 and the guide rails B 108 is equal to the length of the inner frame of the automatic door frame, and the width of the outer side surfaces of the guide rails A 107 and the guide rails B 108 is less than the thickness of the body of the automatic door trolley. Both guide rails are made of sanitary stainless steel, and such a design is conducive to cleaning and rust prevention; the width between the inner side surfaces of the right baffle plate 103 and the left baffle plate 105 is equal to the door frame width of the entrance channel door frame 55, the safety door door frame 56 and the exit channel door frame 57; the body thickness of the automatic door trolley is less than the inner frame width of the automatic door frame, and the distance between the bottom surface of the guide rail and the inner side surface of the top plate 104 is equal to the door frame height of the entrance channel door frame 55, the safety door door frame 56 and the exit channel door frame 57.
[0040] like Figure 5 As shown, the clean room automatic door is arranged in the clean area, and the clean area includes the clean area floor 86, the clean room ceiling 85, the A partition 81 and the B partition 83, and the A clean room 82 and the B clean room 84 are arranged on both sides of the B partition 83, and the automatic door frame is arranged on the clean area floor 86, and the front panel 52 and the rear panel 54 are flush with the A partition 81 and the B partition 83 respectively. It should be noted here that the A clean room 82 and the B clean room 84 are formed by the isolation of the A partition 81 and the B partition 83 and the automatic door frame respectively.
[0041] like Figure 5 As shown, the guide rail and the automatic door trolley are centrally installed inside the automatic door frame, and the guide rail is fixed to the clean area floor 86, so that the automatic door trolley will have the characteristic of reciprocating along the guide rail inside the automatic door frame; the automatic door frame matching the A partition 81 and the automatic door frame matching the B partition 83 are respectively provided with an A safety door 87 and a B safety door 88, and the A safety door 87 and the B safety door 88 are respectively hinged to the safety door frame 56; the thickness of the A safety door 87 and the B safety door 88 is equal to the thickness of the safety door frame 56, and the installed A safety door 87 and the B safety door 88 are sealed with the safety door frame 56 in the closed state, providing an emergency passage for the staff in emergency situations such as automatic door failure or power outage.
[0042] Specifically, after all the installation is completed, the automatic door trolley is enclosed in the space surrounded by the automatic door frame, the clean room ceiling 85 and the clean room floor 86; it is further stipulated that the left end parking position of the automatic door trolley is the position when the inner frame of the automatic door trolley coincides with the door frame 55 of the entrance channel, and the right end parking position is the position when the inner frame of the automatic door trolley coincides with the door frame 57 of the exit channel; in this way, the automatic door trolley will have the characteristic of reciprocating linear movement between the left end parking position and the right end parking position under the drive of the power system; (the power system of the automatic door trolley is not drawn, and the function of the power system is to provide power to the automatic door trolley, which is conducive to realizing the predetermined uniform linear movement under the control of the control system, and is mainly controlled by a PLC control cabinet);
[0043] Referring to the above installation features, it can be seen that no matter the automatic door trolley is at the left end parking position, the right end parking position, or any position in between, the communication path between the entrance channel door frame 55 and the exit channel door frame 57 is either blocked by the right baffle 103 (see Figure 3 ) or blocked by the left baffle 105 of the automatic door trolley (see Figure 3 ) or is blocked by the two baffles at the same time; according to the above-mentioned dimensional relationship, the edge surfaces of the left baffle 105 or the right baffle 103 that plays a blocking role, respectively, with the lower surface of the clean room ceiling 85, the clean room floor 86, the inner side surface of the front panel 52, and the inner side surface of the rear panel 54, form a gap group with a constant size, and the gap group exists at all times; it can be further known that the air of the clean room A 82 is connected with the air of the clean room B 84 through the constant gap group;
[0044] by Figure 5 For example, the working principle of the present invention is:
[0045] (1) If a staff member wants to enter clean room B 84 to carry out work, he / she should first turn on the light switch 59 and then turn on the entry call switch 58 before entering the passage door frame 55, and wait for the automatic door trolley to stop at the left end. If the automatic door trolley has already stopped at the left end, there is no need to turn on the entry call switch 58;
[0046] (2) The staff member steps on the pedal 102 of the automatic door trolley and turns on the trolley operation switch 106 of the automatic door trolley. The automatic door trolley will move at a constant speed to the right end parking position carrying the staff member under the control of the control system until it stops after reaching the right end parking position;
[0047] (3) After the automatic door trolley stops at the right end, the staff walks out from the pedal 102 and enters the clean room A 82;
[0048] (4) The staff enters clean room B 84 and starts working in the same way;
[0049] (5) If the staff member wants to exit the relevant clean room, the corresponding exit call switch 60 is turned on (see Figure 2 ); If the automatic door trolley has stopped at the right end, there is no need to turn on the exit call switch 60. Step on the pedal 102 of the automatic door trolley, turn on the trolley operation switch 106 to start the automatic door trolley, and the trolley moves to the left. After arriving at the left end parking position, the staff can realize this exit.
[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents;
[0051] It should be noted that any existing materials mentioned above are merely an indication of one of the materials of the present invention and do not represent the only materials used in the present invention.
Claims
1. A linear movable clean room automatic door, characterized in that: The invention comprises an automatic door frame and a guide track; an automatic door trolley is arranged on the guide track, and the automatic door trolley comprises a pedal (102), a right baffle (103), a top plate (104) and a left baffle (105); the pedal (102), the right baffle (103), the top plate (104) and the left baffle (105) are mutually fixedly connected to form a rectangular frame; a guide wheel (101) is arranged below the automatic door trolley and the automatic door trolley cooperates with the guide track through the guide wheel (101); the automatic door frame consists of a left side plate (51), a front panel (52), a right side plate (53) and a rear panel (54); the left side plate (51) and the right side plate (53) are connected to the left side plate (54); The side panel (51), the front panel (52), the right side panel (53) and the rear panel (54) are fixedly connected to each other to form a rectangular frame; the front panel (52) is provided with an entry passage door frame (55) and a safety door frame (56); an entry call switch (58) and a light switch (59) are installed on the front panel (52); the entry call switch (58) and the light switch (59) are located on the same side of the entry passage door frame (55); the rear panel (54) is provided with an exit passage door frame (57) and an exit call switch (60); the exit call switch (60) is located on one side of the exit passage door frame (57).
2. The linear movable clean room automatic door according to claim 1, characterized in that: The door frame sizes of the entrance passage door frame (55), the safety door frame (56) and the exit passage door frame (57) are equal in height and width; the distance between the left frame surface of the entrance passage door frame (55) and the inner side surface of the left side plate (51), the distance between the right frame surface of the safety door frame (56) and the inner side surface of the right side plate (53), and the distance between the right frame surface of the exit passage door frame (57) and the inner side surface of the right side plate (53) are equal.
3. The linear movable clean room automatic door according to claim 1, characterized in that: Four guide wheels (101) are installed at the bottom of the pedal (102). After the guide wheels (101) are installed, the automatic door trolley can move linearly along the guide track. A trolley operation switch (106) is installed on the inner side of the left baffle (105).
4. The linear movable clean room automatic door according to claim 1, characterized in that: The guide rail comprises an A guide rail (107) and a B guide rail (108). The A guide rail (107) and the B guide rail (108) are parallel to each other and are installed on the automatic door frame with their bottom surfaces coplanar. The lengths of the A guide rail (107) and the B guide rail (108) are equal to the length of the inner frame of the automatic door frame. The widths of the outer surfaces of the A guide rail (107) and the B guide rail (108) are less than the thickness of the body of the automatic door trolley. The width between the inner surfaces of the right baffle plate (103) and the left baffle plate (105) is equal to the widths of the door frames of the entrance passage (55), the safety door frame (56) and the exit passage (57). The thickness of the body of the automatic door trolley is less than the width of the inner frame of the automatic door frame. The distance between the bottom surface of the guide rail and the inner surface of the top plate (104) is equal to the heights of the door frames of the entrance passage (55), the safety door frame (56) and the exit passage (57).
5. The linear movable clean room automatic door according to claim 1, characterized in that: The clean room automatic door is arranged in a clean area, and the clean area includes a clean area floor (86), a clean room ceiling (85), an A partition (81) and a B partition (83), and an A clean room (82) and a B clean room (84) are arranged on both sides of the B partition (83). An automatic door frame is arranged above the clean area floor (86), and a front panel (52) and a rear panel (54) are respectively flush with the A partition (81) and the B partition (83).
6. The linear movable clean room automatic door according to claim 1, characterized in that: The guide rail and the automatic door trolley are centrally installed inside the automatic door frame, the guide rail is fixed on the clean area floor (86), and the automatic door frames at the A partition (81) and the B partition (83) are respectively provided with an A safety door (87) and a B safety door (88), the A safety door (87) and the B safety door (88) are respectively matched with the safety door frame (56); the thickness of the A safety door (87) and the B safety door (88) is equal to the thickness of the safety door frame (56).
Citation Information
Patent Citations
Linear moving type clean room automatic door
CN212337081U