High airtight operating room automatic door
By adopting dual horizontal drive control and sliding part pulley set design in the operating room automatic door, the problems of long sealing/opening control time and insufficient load bearing capacity of the traditional operating room automatic door are solved, and fast, stable and high air-tight automatic door operation is achieved, and the durability and life of the equipment are improved.
Patent Information
- Application Number
- CN202421465071.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-25
AI Technical Summary
When used, the traditional airtight operating room automatic door has problems such as single drive control, resulting in long sealing/opening control time, insufficient load-bearing, easy to deform, and short life.
The dual horizontal drive control design is adopted, and the combination of the upper drive motor, the lower drive motor, the upper transmission screw and the lower transmission screw can achieve synchronous and stable horizontal sealing/opening control of the driving door body, and the load bearing capacity is improved through the design of the upper sliding part, the lower sliding part, the upper pulley group and the lower pulley group.
It realizes the fast sealing/opening control of the moving door body, meets the requirements of high airtight isolation, has high load-bearing and long life, and improves durability.
Smart Images

Figure CN222716770U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical automatic door application, in particular to a high-airtightness automatic door for an operating room. Background Art
[0002] Theoretically, automatic sliding doors should be an extension of the concept of automatic doors, and the functions of doors are developed and improved according to human needs. For example, various automatic special doors with identifiable control, such as automatic sliding doors, induction automatic doors (infrared induction, microwave induction, touch induction, foot induction), card automatic doors, etc., can effectively play the role of heat insulation, dust prevention, noise reduction, sound insulation, shielding, etc.
[0003] After searching: ① Application number or patent number 201922163813.3, discloses an airtight automatic door for a medical operating room, including a chassis, a door frame and a door body, the rear side wall of the chassis is fixedly connected to the door frame by bolts, the interior of the chassis is slidably connected to the door body, the front side wall of the chassis is fixedly connected to the surgical indicator light by screws, and the bottom of the inner cavity of the chassis is fixedly connected to a motor and a battery by screws. This kind of airtight automatic door for a medical operating room has good sealing through the combined use of accessories, prevents cross infection, maximizes the cleanliness performance, reduces the air circulation to a minimum, prevents cold wind and dust from entering places with cleanliness requirements, maintains constant humidity and temperature, and the main light curtain and the auxiliary light curtain are inductively coupled to each other, and cooperate with the motor control to achieve the purpose of driving the door body to open and close, and after connecting the light curtain control and the motor in conjunction with the foot switch, patients and carts can pass safely and use conveniently, providing the greatest possible convenience.
[0004] ② Application number or patent number 202022926185.2 discloses an airtight automatic door for a medical operating room, including a chassis and a door frame welded on the outer wall at the bottom of the chassis, grooves are provided on both sides and the inner wall at the bottom of the door frame, and limit plates are welded on the inner walls on both sides of the top of the groove at the bottom of the door frame, and the first sealing frame of a "U"-shaped structure is embedded on the inner walls of the grooves on both sides of the door frame, and two sliders are slidably installed in the grooves at the bottom of the door frame, and connecting frames are welded on the outer walls at the bottom of the two sliders, and rollers are connected to the outer walls on the opposite sides of the two connecting frames through bearings, and a door panel is provided in the door frame, and the two ends of the bottom of the door panel are respectively welded on the outer walls at the top of the two sliders, and the second sealing frame of a "U"-shaped structure is fixedly connected to the outer walls on both sides of the door panel. The first sealing frame and the second sealing frame of the utility model are mutually engaged, which improves the airtightness of both sides of the door panel, and the external air will not easily enter the operating room, further improving the sealing performance.
[0005] The two medical operating room airtight automatic doors disclosed above both adopt a single-drive controlled sealing / opening method. Correspondingly, due to the influence of the door body's own weight, the single-drive horizontal control takes a long time, especially for the translational automatic door lead door. At the same time, the connecting block 14 and the fixed block 18 in ② are both plate-shaped, and correspondingly, their performance in terms of load-bearing capacity is not satisfactory, and there are hidden dangers of easy deformation and short life.
[0006] Therefore, based on the above problems, the utility model provides an automatic door for an operating room with high airtightness. Utility Model Content
[0007] Purpose of the utility model: The purpose of the utility model is to provide a highly airtight automatic door for an operating room, to solve the technical problems existing in the use of traditional airtight automatic doors for operating rooms in the background technology, with dual horizontal drive control and rapid sealing control, as well as high load-bearing capacity, long life and durability.
[0008] Technical solution: The utility model of the high-airtightness automatic door of the operating room comprises an upper support plate, a lower support plate, a left vertical plate, a right vertical plate and a foot switch, wherein the side walls of the opposite end surfaces of the upper support plate and the lower support plate are provided with a fixed door body, and the surface of the fixed door body is covered with a sealing protrusion, and the opposite end surfaces of the upper support plate and the lower support plate and the upper groove and the lower groove are provided on the same side of the fixed door body, and the upper sliding part and the lower sliding part are respectively provided in the upper groove and the lower groove, and the upper transmission threaded hole and the lower transmission threaded hole are respectively provided in the upper sliding part and the lower sliding part, and the opposite surfaces of the upper sliding part and the lower sliding part are provided with a moving door body used in conjunction with the fixed door body and the sealing protrusion, and the upper sliding part is provided with an upper pulley group used in conjunction with the upper groove, and the upper sliding part is provided with a pulley group used in conjunction with the upper groove, and the lower sliding part is provided with a pulley group used in conjunction with the upper groove. A lower pulley group is provided for use with the lower groove, the right vertical plate is provided with an upper through groove and a lower through groove, the outer wall of the right vertical plate is respectively provided with an upper frame and a lower frame for use with the upper through groove and the lower through groove, an upper drive motor and a lower drive motor are respectively provided in the upper frame and the lower frame, an upper drive screw for use with the upper transmission threaded hole is provided in the upper sliding part, and a lower drive screw for use with the lower transmission threaded hole is provided in the lower sliding part, and an upper coupling and a lower coupling are respectively provided on the upper drive motor and the lower drive motor; wherein, the upper drive motor and the lower drive motor are respectively connected to the foot switch, one end of the upper drive screw passes through the upper through groove and then is connected to the upper coupling, and one end of the lower drive screw passes through the lower through groove and then is connected to the lower coupling.
[0009] In the technical solution, the high-airtightness operating room automatic door also includes a window arranged on the moving door body, a vertical limit groove arranged on one side of the left vertical plate, and a plurality of horizontal limit columns arranged on the outer wall of one end face of the moving door body and used in conjunction with the vertical limit groove.
[0010] In the technical solution, the high-airtightness operating room automatic door also includes an upper anti-slip nut and an upper travel limit adjustment nut arranged on the upper transmission screw, and a lower anti-slip nut and a lower travel limit adjustment nut arranged on the lower transmission screw.
[0011] In the technical solution, the high-airtightness operating room automatic door also includes an upper grooved vertical support block and a lower grooved vertical support block respectively arranged in the upper frame and the lower frame, and an upper wear-resistant sleeve and a lower wear-resistant sleeve respectively arranged on the upper transmission screw and the lower transmission screw, and used in conjunction with the upper grooved vertical support block and the lower grooved vertical support block.
[0012] In the technical solution of the present invention, the connecting surfaces on the same side of the upper sliding part, the lower sliding part and the movable door body are flush.
[0013] Compared with the prior art, the beneficial effects of the high-airtightness operating room automatic door of the utility model are: 1. Through the design of the upper drive motor, the lower drive motor, the upper coupling, the lower coupling, the upper transmission screw, the lower transmission screw, the upper sliding part, the lower sliding part, the upper pulley group, the lower pulley group, the upper groove and the lower groove, the synchronous rapid and stable horizontal sealing / opening control of the moving door body is achieved to meet the corresponding high-airtightness isolation use requirements; 2. The design of the upper sliding part, the lower sliding part, the upper pulley group, the lower pulley group, the upper groove and the lower groove used in coordination has high load-bearing capacity, and is suitable for the safe and stable horizontal movement support of the moving door body of different operating room automatic doors. At the same time, combined with the dual drive control method, rapid horizontal sealing / opening control is completed. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 This is a schematic diagram of the main structure of the high-airtightness automatic door for operating rooms of the utility model;
[0016] Figure 2 It is a side view structural schematic diagram of an upper sliding part, a lower sliding part, an upper pulley block, a lower pulley block, an upper groove and a lower groove, etc. of a high-airtightness automatic door for an operating room of the utility model;
[0017] Figure 3 It is a horizontal demonstration structure diagram of the fixed door body, the sealing protrusion and the movable door body of the high airtightness automatic door of the operating room of the utility model;
[0018] Figure 4It is a right view structural schematic diagram of the left vertical plate and the vertical limit groove of the high airtightness automatic door of the operating room of the utility model;
[0019] Figure 5 It is a left-side structural schematic diagram of the right vertical plate, the upper through groove and the lower through groove of the high-airtightness automatic door for operating rooms of the utility model;
[0020] Among them, the serial numbers in the figure are as follows: 100-upper support plate, 101-lower support plate, 102-left vertical plate, 103-right vertical plate, 104-upper groove, 105-lower groove, 106-upper through groove, 107-lower through groove 108-upper frame, 109-lower frame, 110-fixed door body, 111-sealing protrusion, 112-moving door body, 113-window, 114-upper sliding part, 115-lower sliding part, 116-upper transmission threaded hole, 117-lower transmission threaded hole, 118-upper pulley block, 119-lower Pulley block, 120- horizontal limit column, 121- vertical limit groove, 122- upper wear-resistant sleeve, 123- lower wear-resistant sleeve, 124- foot switch, 125- upper transmission screw, 126- lower transmission screw, 127- upper anti-dropping nut, 128- lower anti-dropping nut, 129- upper stroke limit adjustment nut, 130- lower stroke limit adjustment nut, 131- upper drive motor, 132- lower drive motor, 133- upper coupling, 134- lower coupling, 135- upper vertical support block with groove, 136- lower vertical support block with groove. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] Embodiment 1
[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The high airtightness automatic door for operating rooms shown in the figure comprises an upper support plate 100, a lower support plate 101, a left vertical plate 102, a right vertical plate 103 and a foot switch 124.
[0025] The side walls of the opposite end faces of the upper support plate 100 and the lower support plate 101 are provided with a fixed door body 110.
[0026] The surface of the fixed door body 110 is covered with a sealing protrusion 111.
[0027] The upper support plate 100 and the lower support plate 101 have opposite end surfaces and are located on the same side of the door body 110 with an upper groove 104 and a lower groove 105.
[0028] An upper sliding portion 114 and a lower sliding portion 115 are respectively disposed in the upper groove 104 and the lower groove 105.
[0029] An upper transmission threaded hole 116 and a lower transmission threaded hole 117 are respectively provided in the upper sliding part 114 and the lower sliding part 115.
[0030] The upper sliding part 114 and the lower sliding part 115 are provided with a movable door body 112 which cooperates with the fixed door body 110 and the sealing protrusion 111.
[0031] The upper sliding portion 114 is provided with an upper pulley assembly 118 for use in conjunction with the upper groove 104.
[0032] The lower sliding part 115 is provided with a lower pulley assembly 119 used in conjunction with the lower groove 105.
[0033] The right vertical plate 103 is provided with an upper through slot 106 and a lower through slot 107.
[0034] The outer wall of the right vertical plate 103 is provided with an upper frame 108 and a lower frame 109 which cooperate with the upper through slot 106 and the lower through slot 107, respectively.
[0035] An upper drive motor 131 and a lower drive motor 132 are respectively disposed in the upper frame 108 and the lower frame 109.
[0036] The upper sliding portion 114 is provided with an upper transmission screw rod 125 for use in conjunction with the upper transmission threaded hole 116.
[0037] The lower sliding portion 115 is provided with a lower transmission screw rod 126 for use in conjunction with the lower transmission threaded hole 117.
[0038] An upper coupling 133 and a lower coupling 134 are respectively provided on the upper driving motor 131 and the lower driving motor 132;
[0039] The upper drive motor 131 and the lower drive motor 132 are respectively connected to the foot switch 124 (connected by electrical wires, the power supply is connected to the electrical wires, and the upper drive motor 131 and the lower drive motor 132 are respectively powered by the foot switch 124), one end of the upper transmission screw 125 passes through the upper through slot 106 and is connected to the upper coupling 133, and one end of the lower transmission screw 126 passes through the lower through slot 107 and is connected to the lower coupling 134;
[0040] The upper drive motor 131 and the lower drive motor 132 start to rotate synchronously, and the upper transmission screw 125 and the lower transmission screw 126 are respectively linked to rotate through the upper coupling 133 and the lower coupling 134, and the movable door body 112 is driven to slide horizontally on the surface of the sealing protrusion 111 on the fixed door body 110 through the upper sliding part 114 and the lower sliding part 115. At this time, the upper pulley group 118 and the lower pulley group 119 synchronously move horizontally in the upper groove 104 and the lower groove 105 respectively.
[0041] Embodiment 2
[0042] On the basis of the first embodiment, the high airtightness operating room automatic door also includes a window 113 (for observation) arranged on the moving door body 112, a vertical limit groove 121 arranged on one side of the left vertical plate 102, and a plurality of horizontal limit columns 120 arranged on the outer wall of one end surface of the moving door body 112 and used in conjunction with the vertical limit groove 121. The plurality of horizontal limit columns 120 and the vertical limit groove 121 in the above structure are used to limit the moving door body 112 during the horizontal sealing control movement.
[0043] Embodiment 3
[0044] On the basis of Example 1 or Example 2, the high airtightness operating room automatic door also includes an upper anti-slip nut 127 and an upper travel limit adjustment nut 129 arranged on the upper transmission screw 125, and a lower anti-slip nut 128 and a lower travel limit adjustment nut 130 arranged on the lower transmission screw 126. The above-mentioned structural designs are respectively used to control and protect the upper sliding part 114 and the lower sliding part 115, thereby realizing precise and safe control of the moving door body 112.
[0045] Embodiment 4
[0046] On the basis of Example 1 or Example 2 or Example 3, the high airtightness operating room automatic door also includes an upper grooved vertical support block 135 and a lower grooved vertical support block 136 respectively arranged in the upper frame 108 and the lower frame 109, and an upper wear-resistant sleeve 122 and a lower wear-resistant sleeve 123 respectively arranged on the upper transmission screw 125 and the lower transmission screw 126 and used in conjunction with the upper grooved vertical support block 135 and the lower grooved vertical support block 136. The above-mentioned structure is designed to provide limited support protection for the rotating upper transmission screw 125 and the lower transmission screw 126, thereby improving the stability and rapidity of the rotationally driven upper sliding part 114 and the lower sliding part 115, and satisfying the rapid sealing / opening control of the movable door body 112.
[0047] In addition, the connecting surfaces on the same side of the upper sliding part 114, the lower sliding part 115 and the movable door body 112 are preferably flush; wherein, the above-mentioned structural design realizes a tight fit and seal between the connecting surfaces of the upper sliding part 114, the lower sliding part 115 and the movable door body 112 and the surface of the sealing protrusion 111 (which is an elastic material), and the upper sliding part 114 and the lower sliding part 115 are respectively provided with strip structures of the same size to increase the mutual transmission working surface with the upper transmission screw 125 and the lower transmission screw 126, while extending the service life, and is also suitable for the assembly and use of heavier movable door bodies 112.
[0048] The structural principle or working principle of the high airtightness operating room automatic door of this structure:
[0049] Please review Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 :
[0050] assembly:
[0051] (1) Weld the two ends of the fixed door body 110 to the upper support plate 100 and the lower support plate 10, and stick the sealing protrusion 111 to cover the surface of the fixed door body 110;
[0052] (2) The upper transmission screw 125 and the lower transmission screw 126 are respectively installed with the upper sliding part 114 and the lower sliding part 115 through the upper transmission threaded hole 116 and the transmission threaded hole 117, and the upper anti-slip nut 127, the upper travel limit adjustment nut 129, the lower anti-slip nut 128, and the lower travel limit adjustment nut 130 are respectively adjusted on the upper transmission screw 125 and the lower transmission screw 126 relative positions to control and debug the travel of the upper sliding part 114 and the lower sliding part 115 to move horizontally toward the linkage door body 112;
[0053] (3) Insert the upper pulley block 118 and the lower pulley block 119 into the upper groove 104 and the lower groove 105 respectively;
[0054] (4) The upper through slot 106 and the lower through slot 107 on the right vertical plate 103 are respectively inserted into the upper transmission screw 125 and the lower transmission screw 126, and are respectively connected to the upper transmission screw 125 and the lower transmission screw 126 through the upper coupling 133 and the lower coupling 134;
[0055] (5) The right vertical plate 103 is welded to the connecting surfaces at both ends of the upper support plate 100 and the lower support plate 10.
[0056] During control: ① step on the foot switch 124, at this time, the upper drive motor 131 and the lower drive motor 132 (the upper drive motor and the lower drive motor are DC brushless motors) are energized to rotate clockwise, and the upper drive motor 131 and the lower drive motor 132 start to rotate synchronously, and the upper transmission screw 125 and the lower transmission screw 126 are respectively rotated through the upper coupling 133 and the lower coupling 134, and the door body 112 is driven to slide on the surface of the sealing protrusion 111 through the upper sliding part 114 and the lower sliding part 115. At this time, the upper pulley group 118 and the lower pulley group 119 are respectively synchronously moved horizontally in the upper groove 104 and the lower groove 105 until a number of horizontal limit columns 120 contact the inner wall of the vertical limit groove 121, and the foot switch 124 is released, and the upper drive motor 131 and the lower drive motor 132 are powered off and stopped to complete the sealing control.
[0057] ② Step on the foot switch 124, at this time, the upper drive motor 131 and the lower drive motor 132 (the upper drive motor and the lower drive motor are DC brushless motors) are energized to rotate counterclockwise, and the upper drive motor 131 and the lower drive motor 132 start to rotate synchronously, and the upper transmission screw 125 and the lower transmission screw 126 are respectively rotated through the upper coupling 133 and the lower coupling 134, and the door body 112 is driven to slide on the surface of the sealing protrusion 111 through the upper sliding part 114 and the lower sliding part 115. At this time, the upper pulley group 118 and the lower pulley group 119 are synchronously moved horizontally in the upper groove 104 and the lower groove 105, respectively, and a plurality of horizontal limit columns 120 are disengaged from the vertical limit groove 121. When it is opened to a suitable position, release the foot switch 124, the upper drive motor 131 and the lower drive motor 132 are powered off and stopped, and the opening control is completed.
[0058] The clockwise rotation / counterclockwise rotation and pedal rotation states of the upper drive motor 131 and the lower drive motor 132 of this structure are conventional technologies and are not improved in this application.
[0059] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0060] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A highly airtight automatic door for an operating room, comprising an upper support plate (100), a lower support plate (101), a left vertical plate (102), a right vertical plate (103) and a foot switch (124), characterized in that: The side walls of the opposite end surfaces of the upper support plate (100) and the lower support plate (101) are provided with a fixed door body (110). The surface of the fixed door body (110) is covered with a sealing protrusion (111). An upper groove (104) and a lower groove (105) are provided on opposite end surfaces of the upper support plate (100) and the lower support plate (101) and are located on the same side of the fixed door body (110). An upper sliding part (114) and a lower sliding part (115) are respectively arranged in the upper groove (104) and the lower groove (105). An upper transmission threaded hole (116) and a lower transmission threaded hole (117) are respectively provided in the upper sliding part (114) and the lower sliding part (115). The surfaces opposite to the upper sliding part (114) and the lower sliding part (115) are provided with a movable door body (112) used in conjunction with the fixed door body (110) and the sealing protrusion (111). The upper sliding part (114) is provided with an upper pulley group (118) for use in conjunction with the upper groove (104). The lower sliding part (115) is provided with a lower pulley assembly (119) used in conjunction with the lower groove (105). The right vertical plate (103) is provided with an upper through slot (106) and a lower through slot (107). The outer wall of the right vertical plate (103) is respectively provided with an upper frame (108) and a lower frame (109) for use with the upper through groove (106) and the lower through groove (107). An upper drive motor (131) and a lower drive motor (132) are respectively disposed in the upper frame (108) and the lower frame (109). An upper transmission screw rod (125) is arranged in the upper sliding portion (114) and is used in conjunction with the upper transmission threaded hole (116). The lower sliding portion (115) is provided with a lower transmission screw rod (126) for use in conjunction with the lower transmission threaded hole (117). The upper drive motor (131) and the lower drive motor (132) are respectively provided with an upper coupling (133) and a lower coupling (134); The upper drive motor (131) and the lower drive motor (132) are respectively connected to the foot switch (124); one end of the upper transmission screw (125) passes through the upper through slot (106) and is connected to the upper coupling (133); one end of the lower transmission screw (126) passes through the lower through slot (107) and is connected to the lower coupling (134).
2. The high airtightness automatic door for operating rooms according to claim 1 is characterized in that: The highly airtight operating room automatic door further comprises a viewing window (113) arranged on the movable door body (112), a vertical limiting groove (121) arranged in one surface of the left vertical plate (102), and a plurality of horizontal limiting columns (120) arranged on the outer wall of one end surface of the movable door body (112) and used in conjunction with the vertical limiting groove (121).
3. The high airtightness automatic door for operating rooms according to claim 2 is characterized in that: The high-airtightness automatic door for operating rooms also includes an upper anti-slip nut (127) and an upper travel limit adjustment nut (129) arranged on the upper transmission screw (125), and a lower anti-slip nut (128) and a lower travel limit adjustment nut (130) arranged on the lower transmission screw (126).
4. The high airtightness automatic door for operating rooms according to claim 3 is characterized in that: The high-airtightness operating room automatic door also includes an upper grooved vertical support block (135) and a lower grooved vertical support block (136) respectively arranged in the upper frame (108) and the lower frame (109), and an upper wear-resistant sleeve (122) and a lower wear-resistant sleeve (123) respectively arranged on the upper transmission screw (125) and the lower transmission screw (126) and used in conjunction with the upper grooved vertical support block (135) and the lower grooved vertical support block (136).
5. The high airtightness automatic door for operating rooms according to claim 3 is characterized in that: The connecting surfaces on the same side of the upper sliding part (114), the lower sliding part (115) and the movable door body (112) are flush.
Citation Information
Patent Citations
Medical operating room airtight automatic door
CN211287301U
Airtight automatic door for medical operating room
CN214035376U