Soldering penetration type full-partition biological safety type sterilization cabinet

Abstract

The utility model discloses a penetration welding type full-partition biological safety type sterilization cabinet which comprises a sterilization cabinet body and a cabinet door, and one side of the cabinet door is hinged to the side portion of a material inlet and outlet of the sterilization cabinet body. A panel on the sterilization cabinet body is formed by integrally welding and connecting all composition plates; the inner grooves in the four door corners of the cabinet door are of a rounded corner structure. Door locking devices capable of locking the cabinet door in a closed state on the sterilization cabinet body are arranged on the cabinet door and the sterilization cabinet body. The sterilization cabinet basically has no cleaning dead angle, and the panel is of an integrated penetration welding type structure, so that the GMP certification requirement is completely met.

Description

Technical Field

[0001] The utility model relates to the field of sterilizing cabinet equipment, in particular to a weld-through type fully partitioned biosafety sterilizing cabinet. Background Art

[0002] The biopharmaceutical industry is an important part of today's medical field, and its product quality and safety are crucial to the life and health of patients. In order to ensure the quality and safety of biopharmaceutical products, all countries have implemented a GMP (Good Manufacturing Practice) certification system for biopharmaceutical companies. In GMP certification, clean room requirements are a very important part.

[0003] A clean room is a room that has been equipped with a series of measures, such as air purification and zoning control, to achieve a certain degree of cleanliness and hygiene standards in the indoor environment, so as to meet the cleanliness requirements for the production of medicines. In the application field of sterilizers, the panel on the sterilizer body serves as a partition between the clean space area and the non-clean space area, dividing the area behind the panel into the clean space area, that is, the clean room mentioned above, and the area in front of the panel into the non-clean space area. At present, how to reduce the air flow from the non-clean space area to the clean space area has always been a difficult problem in the application field of sterilizers. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a weld-through type full-partition biosafety sterilization cabinet which can fully meet the requirements of GMP certification.

[0005] The technical solution adopted by the utility model is as follows: the welded-through fully partitioned biosafety sterilizer comprises: a sterilizer body and a door, one side of the door is hinged to the side of the material inlet and outlet of the sterilizer body; the panel on the sterilizer body is formed by integrally welded connection of the component panels, the panel formed by the integrally welded connection is a whole, so there is no gap for front and back air connection, thus solving the problem of poor cleanliness caused by front and back air connection; the inner grooves on the four door corners of the door are rounded structures, the rounded structure does not have the problem of cleaning dead corners, thus further improving the cleanliness requirements.

[0006] The present invention provides a door locking device on the cabinet door and the sterilizing cabinet body, which can lock the cabinet door in a closed state on the sterilizing cabinet body; the structure of the door locking device is as follows: the cabinet door has a hollow interlayer, and a plurality of groups of movable rod door locking structures are arranged from top to bottom in the hollow interlayer of the cabinet door; each group of movable rod door locking structures is as follows: the middle part of the driving rod is hinged to the inner cavity wall of the hollow interlayer of the cabinet door, the left end of the driving rod is hinged to the right end of the left movable rod, the left end of the left movable rod is hinged to the tail of the left door locking rod, the left door locking rod is inserted into the left channel corresponding to the left side of the cabinet door, and a left locking ring corresponding to the left door locking rod and capable of inserting the left door locking rod is provided on the sterilizing cabinet body; the right end of the driving rod is hinged to the left end of the right movable rod, and the right end of the right movable rod is hinged to the tail of the left door locking rod. The end is hingedly connected to the tail of the right door locking rod, and the right door locking rod is inserted into the right channel corresponding to the right side of the cabinet door, and a right locking ring corresponding to the right door locking rod and capable of being inserted into the right door locking rod is arranged on the sterilization cabinet body; a sensor for sensing the corresponding left door locking rod or the corresponding right door locking rod inserted into place is arranged on the sterilization cabinet body at any left locking ring or any right locking ring; each driving rod in all movable rod door locking structures is driven to rotate by the same driving device, so that each left door locking rod and each right door locking rod in each group of movable rod door locking structures are synchronously extended into the corresponding left locking ring and right locking ring to lock the cabinet door, or each left door locking rod and each right door locking rod in each group of movable rod door locking structures are synchronously withdrawn from the corresponding left locking ring and right locking ring to unlock the locked cabinet door.

[0007] Furthermore, in the aforementioned weld-through type fully partitioned biosafety sterilization cabinet, the hinge structure in which the middle portion of each driving rod is hinged to the inner cavity wall of the hollow interlayer of the cabinet door includes: a hinge shaft supported on the inner cavity wall of the hollow interlayer of the cabinet door through a corresponding bearing seat, and the middle portion of the driving rod is fixedly connected to the hinge shaft.

[0008] Furthermore, in the aforementioned weld-through type fully partitioned biosafety sterilization cabinet, the structure of the driving device is as follows: the middle part of the main driving disk is hinged on the inner cavity wall of the hollow interlayer of the cabinet door, all the movable rod door locking structures located above the main driving disk constitute an upper movable rod door locking structure group, and all the movable rod door locking structures located below the main driving disk constitute a lower movable rod door locking structure group; a first driving rod and a second driving rod are arranged on the main driving disk, and the first driving rod and the second driving rod are arranged crosswise. In this scheme, the first driving rod and the second driving rod are preferably arranged vertically crosswise.

[0009] The cylinder body of the air cylinder or hydraulic cylinder is hinged on the inner wall of the hollow interlayer of the cabinet door, and the piston rod end of the air cylinder or hydraulic cylinder is hinged to the left end of the first driving rod; the middle part of the manual rotating disk is hinged to the inner wall of the hollow interlayer of the cabinet door, and a manual driving rod is arranged on the manual rotating disk, the left end of the connecting rod is hinged to the right end of the first driving rod, and the right end of the connecting rod is hinged to the end of the manual driving rod; at this time, the air cylinder or hydraulic cylinder is located on the left side of the main driving disk, and the manual rotating disk is located on the right side of the main driving disk.

[0010] An upper driving rod is fixedly connected to each hinge shaft in the upper movable rod door locking structure group, and a lower driving rod is fixedly connected to each hinge shaft in the lower movable rod door locking structure group. An upper connecting rod and a lower connecting rod are also arranged in the hollow interlayer of the cabinet door, and a first connecting seat corresponding to each upper driving rod in the upper movable rod door locking structure group is arranged on the upper connecting rod, and an end of each upper driving rod in the upper movable rod door locking structure group is hingedly connected to the corresponding first connecting seat; a second connecting seat corresponding to each lower driving rod in the lower movable rod door locking structure group is arranged on the lower connecting rod, and an end of each lower driving rod in the lower movable rod door locking structure group is hingedly connected to the corresponding second connecting seat; a third connecting seat is arranged at the lower part of the upper connecting rod, and the right end of the second driving rod is hingedly connected to the third connecting seat; a fourth connecting seat is arranged at the upper part of the lower connecting rod, and the left end of the second driving rod is hingedly connected to the fourth connecting seat.

[0011] Furthermore, in the aforementioned weld-through type fully partitioned biosafety sterilizer, one side of the cabinet door is hinged to the side of the material inlet and outlet of the sterilizer body, and the structure is as follows: a first hinge seat and a second hinge seat are fixedly connected to the left side of the material inlet and outlet of the sterilizer body, a first hinge through hole is provided on the first hinge seat, and a second hinge through hole is provided on the second hinge seat; an upper hinge and a lower hinge are fixedly installed on the left side of the cabinet door, and a third hinge through hole is provided on the upper hinge , a fourth hinge through hole is provided on the lower hinge; the lower end of the main shaft passes through the fourth hinge through hole and the lower plane bearing downwards in sequence and then extends into the second hinge through hole, and the main shaft is circumferentially fixed to the lower hinge; the upper end of the main shaft passes through the first hinge through hole, the upper plane bearing, and the third hinge through hole upwards in sequence and then extends upwards, and the main shaft is circumferentially fixed to the upper hinge; the main shaft is axially positioned by the axial positioning structure, and the main shaft extending upwards out of the third hinge through hole is driven to rotate by a main shaft driving device provided on the sterilizer body. In this structure, the aforementioned sensor is preferably provided on the sterilizer body at the position of any right locking ring.

[0012] Furthermore, in the aforementioned weld-through type fully partitioned biosafety sterilizer, the structure of the spindle drive device is as follows: a motor seat with a drive motor is fixedly provided on the top of the sterilizer body, the motor shaft of the drive motor is connected to the reduction box, a driving bevel gear is fixedly provided on the output shaft of the reduction box, and a driven bevel gear meshing with the driving bevel gear to form a gear transmission is fixedly provided at the upper end of the spindle.

[0013] In order to control the opening degree of the cabinet door and effectively utilize the space behind the door, this solution is fixedly provided with a limit rod on the output shaft of the reduction gearbox, and a travel switch is fixedly provided on the motor seat. The position of the travel switch is the position where the limit rod can trigger the travel switch when the driving motor drives the closed cabinet door to rotate outward by an angle α through the gear transmission drive main shaft composed of the active bevel gear and the driven bevel gear; α=90~92°.

[0014] In order to reduce the difficulty of disassembling the main shaft, this scheme designs the main shaft into a two-section structure: the main shaft is composed of a first main shaft and a second main shaft; a downwardly protruding block is provided on the lower end face of the first main shaft, and a slot for the block to be embedded is downwardly opened on the upper end face of the second main shaft; the lower end of the second main shaft passes through the fourth hinge through hole and the lower plane bearing and then extends into the second hinge through hole, and the second main shaft is circumferentially fixed to the lower hinge; the upper end of the second main shaft passes through the first hinge through hole and the upper plane bearing and then extends into the third hinge through hole, the lower end of the first main shaft extends into the third hinge through hole and the block is embedded in the slot, and the first main shaft is circumferentially fixed to the upper hinge.

[0015] Further, in the aforementioned weld-through type fully partitioned biosafety sterilizer, a first internal thread section is machined in the first hinged through hole, an upper sleeve with a first external thread section is screwed upwardly into the first hinged through hole from the lower end of the first hinged through hole, and the second main shaft is movably inserted into the upper sleeve; two symmetrical first planes are cut on the circumference of the first main shaft located at the third hinged through hole, the inner wall of the first plugging hole sleeve corresponds to the outer contour of the first main shaft at the first plane, the first plugging hole sleeve is inserted between the first main shaft and the third hinged through hole, and the first main shaft and the upper hinge are circumferentially positioned;

[0016] A second internal thread section is machined in the second hinged through hole, and a lower sleeve with a second external thread section is screwed upwardly into the second hinged through hole from the lower end of the second hinged through hole, and the lower end of the second main shaft extends into the lower sleeve; two symmetrical second planes are cut on the circumference of the second main shaft located at the fourth hinged through hole, and the inner wall of the second plugging hole sleeve corresponds to the outer contour of the second main shaft at the second plane, and the second plugging hole sleeve is inserted between the second main shaft and the fourth hinged through hole to perform circumferential positioning of the second main shaft and the lower hinge;

[0017] The axial positioning structure is as follows: the lower end opening of the lower sleeve is closed, an internal threaded through hole is opened on the lower end surface of the lower sleeve, and the bolt is screwed into the internal threaded through hole and abuts against the lower end surface of the second spindle, thereby axially positioning the spindle.

[0018] The beneficial effects of the utility model are: first, it can ensure that the air in the front area and the back area of ​​the panel is basically non-circulating, ensuring that the GMP certification requirements are met; second, the cabinet door can be automatically opened and closed, which is easy to operate, safe and reliable to use, and the opening angle of the cabinet door can be controlled when the door is automatically opened and closed, saving the space occupied by the cabinet door switch; third, the main shaft is easy to disassemble and is not restricted by the height of the factory building. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial external structural schematic diagram of the weld-through type fully partitioned biosafety sterilization cabinet described in the utility model.

[0020] Figure 2 yes Figure 1 Schematic diagram of the partial structure inside the middle cabinet door.

[0021] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure of part A.

[0022] Figure 4 yes Figure 2 Schematic diagram of the local enlarged structure of part B.

[0023] Figure 5 yes Figure 2 Schematic diagram of the local enlarged structure of part C in the middle.

[0024] Figure 6 yes Figure 2 Schematic diagram of the partial structure inside the cabinet door from a top view.

[0025] Figure 7 yes Figure 6 Schematic diagram of the local enlarged structure of part D in the middle.

[0026] Figure 8 yes Figure 1 Schematic diagram of the local enlarged structure of part E in the middle.

[0027] Fig. 9 yes Figure 8 Schematic diagram of the state where the middle limit rod moves to the position that triggers the travel switch.

[0028] Fig.10 It is a schematic diagram of the position structure between the main shaft and the upper hinge, the first hinge seat, the upper plane bearing, the lower hinge, the lower plane bearing, and the second hinge seat.

[0029] Fig.11 yes Fig.10 Schematic diagram of disassembling the spindle. DETAILED DESCRIPTION

[0030] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0031] For the convenience of description, the present invention is described as follows. Figure 1 The left-hand direction shown is defined as "left", with Figure 1 The right-hand direction shown is defined as "right", with Figure 6 The upper area of ​​the panel shown is defined as the "panel back area". Figure 6 The direction of the lower area of ​​the panel is defined as the "front area of ​​the panel", and all directional terms involved in the present utility model are based on the above definition.

[0032] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, 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 direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0034] The weld-through fully partitioned biosafety sterilization cabinet described in this embodiment is as follows: Figure 1 As shown, it includes: a sterilization cabinet body 1 and a cabinet door 2, one side of the cabinet door 2 is hinged to the side of the material inlet and outlet of the sterilization cabinet body 1. Among them, the panel 11 on the sterilization cabinet body 1 is formed by the integral welding connection of the component plates. At this time, the panel 11 is equivalent to an integral structure, so there is basically no gap between the connection between the component plates for the air connection between the front area of ​​the panel and the back area of ​​the panel. In addition, in this embodiment, the inner grooves on the four door corners 21 of the cabinet door 2 are rounded structures. This rounded structure is easy to clean and is not prone to sanitary dead corners.

[0035] In this embodiment, a door locking device is provided on the cabinet door 2 and the sterilizing cabinet body 1, which can lock the cabinet door in a closed state on the sterilizing cabinet body 1. Figure 2 and Figure 6 As shown, the structure of the door locking device is as follows: the cabinet door 2 has a hollow interlayer 22, and a plurality of groups of movable rod door locking structures are arranged in the hollow interlayer 22 of the cabinet door 2 from top to bottom. Figure 2 , Figure 4 and Figure 5 As shown, each group of movable rod door lock structure is as follows: the middle part of the driving rod 31 is hinged to the inner cavity wall of the hollow interlayer of the cabinet door 2, the left end of the driving rod 31 is hinged to the right end of the left movable rod 32, the left end of the left movable rod 32 is hinged to the tail of the left door lock rod 33, the left door lock rod 33 is inserted into the left channel corresponding to the left side of the cabinet door 2, and a left lock ring 34 corresponding to the left door lock rod 33 and capable of inserting the left door lock rod 33 is provided on the sterilizing cabinet body 1. The right end of the driving rod 31 is hinged to the left end of the right movable rod 35, the right end of the right movable rod 35 is hinged to the tail of the right door lock rod 36, the right door lock rod 36 is inserted into the right channel 23 corresponding to the right side of the cabinet door 2, and a right lock ring 37 corresponding to the right door lock rod 36 and capable of inserting the right door lock rod 36 is provided on the sterilizing cabinet body 1. A sensor 38 for sensing the insertion of the corresponding left door lock rod 33 or the corresponding right door lock rod 36 is arranged on the sterilizing cabinet body 1 at any left lock ring 34 or any right lock ring 37. When the cabinet door 2 is hinged to the left of the material inlet and outlet of the sterilizing cabinet body 1, the sensor 38 is usually arranged at any right lock ring 37; similarly, when the cabinet door 2 is hinged to the right of the material inlet and outlet of the sterilizing cabinet body 1, the sensor 38 is usually arranged at any left lock ring 34.

[0036] Among them, each driving rod 31 in all movable rod door locking structures is driven to rotate by the same driving device. Under the drive of the driving device, each left door locking rod 33 and each right door locking rod 36 in each group of movable rod door locking structures synchronously extend into the corresponding left locking ring 34 and right locking ring 37 to lock the cabinet door 2 on the sterilizing cabinet body 1. At this time, the cabinet door 2 cannot be opened under the action of external force. Alternatively, under the drive of the driving device, each left door locking rod 33 and each right door locking rod 36 in each group of movable rod door locking structures synchronously withdraw from the corresponding left locking ring 34 and right locking ring 37 to unlock the locked cabinet door 2. At this time, the cabinet door 2 can be opened outward under the action of external force.

[0037] In this embodiment, Figure 6 and Figure 7As shown, the hinge structure in which the middle part of each driving rod 31 is hinged on the inner wall of the hollow interlayer 22 of the cabinet door 2 includes: a hinge shaft 3 supported on the inner wall of the hollow interlayer 22 of the cabinet door 2 through a corresponding bearing seat 30, and the middle part of the driving rod 31 is fixedly connected to the hinge shaft 3.

[0038] In this embodiment, Figure 2 and Figure 3 As shown, the structure of the driving device is as follows: the middle of the main driving disk 4 is hinged on the inner cavity wall of the hollow interlayer 22 of the cabinet door 2, all the movable rod door locking structures located above the main driving disk 4 constitute the upper movable rod door locking structure group, and all the movable rod door locking structures located below the main driving disk 4 constitute the lower movable rod door locking structure group. A first driving rod 41 and a second driving rod 42 are arranged on the main driving disk 4, and the first driving rod 41 and the second driving rod 42 are arranged crosswise. The cylinder body of the cylinder or hydraulic cylinder 43 is hinged on the inner cavity wall of the hollow interlayer 22 of the cabinet door 2, and the piston rod end of the cylinder or hydraulic cylinder 43 is hinged to the left end of the first driving rod 41; the middle of the manual rotating disk 44 is hinged on the inner cavity wall of the hollow interlayer 22 of the cabinet door 2, and a manual driving rod 45 is arranged on the manual rotating disk 44, the left end of the connecting rod 46 is hinged to the right end of the first driving rod 41, and the right end of the connecting rod 46 is hinged to the end of the manual driving rod 45.

[0039] An upper driving rod 39 is fixedly connected to each hinge shaft 3 in the upper movable rod door locking structure group, and a lower driving rod 310 is fixedly connected to each hinge shaft 3 in the lower movable rod door locking structure group. An upper connecting rod 51 and a lower connecting rod 52 are also arranged in the hollow interlayer 22 of the cabinet door 2. A first connecting seat 511 corresponding to each upper driving rod 39 in the upper movable rod door locking structure group is arranged on the upper connecting rod 51, and an end of each upper driving rod 39 in the upper movable rod door locking structure group is hinged to the corresponding first connecting seat 511; a second connecting seat corresponding to each lower driving rod 310 in the lower movable rod door locking structure group is arranged on the lower connecting rod 52, and an end of each lower driving rod 310 in the lower movable rod door locking structure group is hinged to the corresponding second connecting seat.

[0040] A third connection seat 512 is provided at the lower part of the upper connection rod 51, and the right end of the second drive rod 42 is hinged to the third connection seat 512; a fourth connection seat 521 is provided at the upper part of the lower connection rod 52, and the left end of the second drive rod 42 is hinged to the fourth connection seat 521.

[0041] When the cabinet door 2 is in the closed state, the air cylinder or hydraulic cylinder 43 is started, so that the piston rod of the air cylinder or hydraulic cylinder 43 extends outward, driving the second driving rod 42 to rotate from the vertical position to the horizontal position; in this process, driven by the upper connecting rod 51 and the lower connecting rod 52, each left movable rod 32 pushes the corresponding left door locking rod 33 to move to the left and inserts into the corresponding left locking ring 34, and at the same time, each right movable rod 35 pushes the corresponding right door locking rod 36 to move to the right and inserts into the corresponding right locking ring 37. When the sensor 38 is triggered, it means that each left door locking rod 33 and each right door locking rod 36 move to the right position, and the piston rod of the air cylinder or hydraulic cylinder 43 remains in this position and no longer extends outward, thereby completing the purpose of locking the door.

[0042] When it is necessary to unlock the cabinet door 2 in the locked state, start the air cylinder or hydraulic cylinder 43 to retract the piston rod of the air cylinder or hydraulic cylinder 43 inward, driving the second drive rod 42 to rotate from a horizontal position to a vertical position; in this process, driven by the upper connecting rod 51 and the lower connecting rod 52, each left movable rod 32 pushes the corresponding left door locking rod 33 to move to the right, so that each left door locking rod 33 inserted in the corresponding left locking ring 34 withdraws from the corresponding left locking ring 34 to the right; at the same time, each right movable rod 35 pushes the corresponding right door locking rod 36 to move to the left, so that each right door locking rod 36 inserted in the corresponding right locking ring 37 withdraws from the corresponding right locking ring 37 to the left, thereby completing the unlocking purpose.

[0043] In actual use, it is impossible to always have normal power supply. Sudden power outages may occur due to various factors such as line failures. When the cabinet door 2 needs to be locked or unlocked after a power outage, the operation can be performed by rotating the manual rotating disk 44. The principle of rotating the manual rotating disk 44 is the same as the above-mentioned operating principle, so it will not be elaborated here. Embodiment 2

[0044] This embodiment is based on the first embodiment, and designs the hinge structure of the cabinet door 2, wherein: Figure 1 , Fig.10 and Fig.11As shown, the structure of the side of the cabinet door 2 hinged to the material inlet and outlet of the sterilizing cabinet body 1 is as follows: a first hinge seat 61 and a second hinge seat 62 are fixedly connected on the left side of the material inlet and outlet of the sterilizing cabinet body 1, a first hinge through hole is provided on the first hinge seat 61, and a second hinge through hole is provided on the second hinge seat 62. An upper hinge 23 and a lower hinge 24 are fixedly installed on the left side of the cabinet door 2, a third hinge through hole is provided on the upper hinge 23, and a fourth hinge through hole is provided on the lower hinge 24. The lower end of the main shaft 7 passes through the fourth hinge through hole and the lower plane bearing 64 downwards in sequence and then extends into the second hinge through hole, and the main shaft 7 is circumferentially fixed to the lower hinge 24. The upper end of the main shaft 7 passes through the first hinge through hole, the upper plane bearing 63, and the third hinge through hole upwards in sequence and then extends upwards, and the main shaft 7 is circumferentially fixed to the upper hinge 23. The main shaft 7 is axially positioned by the axial positioning structure, and the main shaft 7 extending upward out of the third hinge through hole is driven to rotate by a main shaft driving device arranged on the sterilization cabinet body 1.

[0045] like Figure 1 , Figure 8 and Fig. 9 As shown, the structure of the spindle drive device described in this embodiment is as follows: a motor seat with a drive motor 8 is fixedly arranged on the top of the sterilizer body 1, the motor shaft of the drive motor 8 is connected to the reduction box, a driving bevel gear 81 is fixedly arranged on the output shaft of the reduction box, and a driven bevel gear 82 meshing with the driving bevel gear 81 to form a gear transmission is fixedly arranged at the upper end of the spindle 7. When working, the action of opening and closing the cabinet door 2 is realized by controlling the forward and reverse rotation of the drive motor 8.

[0046] A limit rod 83 is fixedly arranged on the output shaft of the reduction box, and a travel switch 84 is fixedly arranged on the motor seat. The position of the travel switch 84 is the position where the limit rod 83 can trigger the travel switch 84 when the closed cabinet door 2 is driven outward to rotate at an angle α by the gear transmission drive main shaft 7 composed of the active bevel gear 81 and the driven bevel gear 82 of the driving motor 8; wherein α=90~92°. When the cabinet door 2 is opened at an angle α, the limit rod 83 can trigger the travel switch 84. After the travel switch 84 and the driving motor 8 are associated with the control system, the control system can control the action of the driving motor 8 according to the signal fed back by the travel switch 84 to ensure that the opening angle of the cabinet door 2 does not exceed the angle α. In this way, the cabinet door 2 takes up a space of about a quarter of a semicircle area when it is opened, and other items that will not interfere with the normal movement of the sterilization cabinet can be placed in the other free areas, which effectively saves space and has a higher space utilization rate. Embodiment 3

[0047] The height of the sterilization cabinet is usually more than 2 meters, so the main shaft 7 is usually also more than 2 meters. When the main shaft 7 needs to be disassembled, the main shaft 7 cannot be pulled down, and it is not easy to pull the main shaft 7 upward due to the height limit of the factory building. To solve this problem, this embodiment designs the main shaft 7 on the basis of the first embodiment or the second embodiment, and designs the main shaft 7 into two sections: Fig.10 and Fig.11 As shown, the main shaft is composed of a first main shaft 71 and a second main shaft 72; a downwardly protruding block 712 is provided on the lower end face of the first main shaft 71, and a slot 721 for the block 712 to be embedded is provided downwardly on the upper end face of the second main shaft 72; the lower end of the second main shaft 72 passes through the fourth hinge through hole and the lower plane bearing 64 and then extends into the second hinge through hole, and the second main shaft 72 is circumferentially fixed to the lower hinge 24; the upper end of the second main shaft 72 passes through the first hinge through hole and the upper plane bearing 63 and then extends into the third hinge through hole, the lower end of the first main shaft 71 extends into the third hinge through hole and the block 712 is embedded in the slot 721, and the first main shaft 71 is circumferentially fixed to the upper hinge 23.

[0048] Among them, the structure in which the first main shaft 71 and the upper hinge 23 are circumferentially fixed is as follows: a first internal thread section is machined in the first hinge through hole, and an upper sleeve 91 with a first external thread section on the outside is screwed upward into the first hinge through hole from the lower end of the first hinge through hole, and the second main shaft 72 is movably inserted into the upper sleeve 91; two symmetrical first planes 711 are cut on the circumference of the first main shaft 71 located at the third hinge through hole, and the inner wall of the first plugging hole sleeve 92 corresponds to the outer contour of the first main shaft 71 at the first plane 711, and the first plugging hole sleeve 92 is inserted between the first main shaft 71 and the third hinge through hole to perform circumferential positioning of the first main shaft 71 and the upper hinge 23.

[0049] The structure of the second main shaft 72 and the lower hinge 24 being circumferentially fixed is as follows: a second internal thread section is machined in the second hinge through hole, and a lower sleeve 93 with a second external thread section on the outside is screwed upward into the second hinge through hole from the lower end of the second hinge through hole, and the lower end of the second main shaft 72 extends into the lower sleeve 93; two symmetrical second planes 722 are cut on the circumference of the second main shaft 72 located at the fourth hinge through hole, and the inner wall of the second plugging hole sleeve 94 corresponds to the outer contour of the second main shaft 72 at the second plane 722, and the second plugging hole sleeve 94 is inserted between the second main shaft 72 and the fourth hinge through hole to perform circumferential positioning of the second main shaft 72 and the lower hinge 24.

[0050] The axial positioning structure is as follows: the lower end opening of the lower sleeve 93 is closed, and an internal threaded through hole is opened on the lower end surface of the lower sleeve 93. After the bolt 95 is screwed into the internal threaded through hole, it abuts against the lower end surface of the second main shaft 72, thereby axially positioning the main shaft 7.

[0051] The structure has the advantages of being able to automatically open and close the cabinet door, being easy to operate, safe and reliable to use, being able to control the cabinet door opening angle when automatically opening and closing the door, saving the space occupied by the cabinet door switch, and being easy to disassemble the main shaft without being restricted by the height of the factory building.

[0052] The above description is only a preferred embodiment of the present invention and does not constitute any other limitation on the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. Weld-through fully partitioned biosafety sterilizer, including: The sterilizing cabinet body and the cabinet door, one side of the cabinet door is hinged to the side of the material inlet and outlet of the sterilizing cabinet body; the characteristics are: the panel on the sterilizing cabinet body is composed of the components connected by integral welding; the inner grooves on the four door corners of the cabinet door are rounded structures; the cabinet door and the sterilizing cabinet body are provided with a door locking device that can lock the cabinet door in a closed state on the sterilizing cabinet body; The structure of the door locking device is as follows: the cabinet door has a hollow interlayer, and a plurality of groups of movable rod door locking structures are arranged in the hollow interlayer of the cabinet door from top to bottom; each group of movable rod door locking structures is as follows: the middle part of the driving rod is hinged to the inner cavity wall of the hollow interlayer of the cabinet door, the left end of the driving rod is hinged to the right end of the left movable rod, the left end of the left movable rod is hinged to the tail of the left door locking rod, the left door locking rod is inserted into the left channel corresponding to the left side of the cabinet door, and a left locking ring corresponding to the left door locking rod and capable of inserting the left door locking rod is arranged on the sterilization cabinet body; the right end of the driving rod is hinged to the left end of the right movable rod, and the right end of the right movable rod is hinged to the tail of the right door locking rod. The right door locking rod is inserted into the right channel corresponding to the right side of the cabinet door, and a right locking ring corresponding to the right door locking rod and capable of being inserted into the right door locking rod is arranged on the sterilization cabinet body; a sensor for sensing the corresponding left door locking rod or the corresponding right door locking rod being inserted into place is arranged on the sterilization cabinet body at any left locking ring or any right locking ring; each driving rod in all movable rod door locking structures is driven to rotate by the same driving device, so that each left door locking rod and each right door locking rod in each group of movable rod door locking structures are synchronously extended into the corresponding left locking ring and right locking ring, or each left door locking rod and each right door locking rod in each group of movable rod door locking structures are synchronously withdrawn from the corresponding left locking ring and right locking ring.

2. The weld-through fully partitioned biosafety sterilization cabinet according to claim 1 is characterized in that: The hinge structure in which the middle part of each driving rod is hinged on the inner wall of the hollow interlayer of the cabinet door comprises: a hinge shaft supported on the inner wall of the hollow interlayer of the cabinet door through a corresponding bearing seat, and the middle part of the driving rod is fixedly connected to the hinge shaft.

3. The weld-through fully partitioned biosafety sterilization cabinet according to claim 2 is characterized in that: The structure of the driving device is as follows: the middle part of the main driving disk is hinged on the inner cavity wall of the hollow interlayer of the cabinet door, all the movable rod door locking structures located above the main driving disk constitute an upper movable rod door locking structure group, and all the movable rod door locking structures located below the main driving disk constitute a lower movable rod door locking structure group; a first driving rod and a second driving rod are arranged on the main driving disk, and the first driving rod and the second driving rod are arranged in a cross manner; The cylinder body of the air cylinder or hydraulic cylinder is hinged on the inner cavity wall of the hollow interlayer of the cabinet door, and the piston rod end of the air cylinder or hydraulic cylinder is hingedly connected to the left end of the first driving rod; the middle part of the manual rotating disk is hingedly connected to the inner cavity wall of the hollow interlayer of the cabinet door, and a manual driving rod is arranged on the manual rotating disk, the left end of the connecting rod is hingedly connected to the right end of the first driving rod, and the right end of the connecting rod is hingedly connected to the end of the manual driving rod; An upper driving rod is fixedly connected to each hinge shaft in the upper movable rod door locking structure group, and a lower driving rod is fixedly connected to each hinge shaft in the lower movable rod door locking structure group. An upper connecting rod and a lower connecting rod are also arranged in the hollow interlayer of the cabinet door. A first connecting seat corresponding to each upper driving rod in the upper movable rod door locking structure group is arranged on the upper connecting rod, and an end of each upper driving rod in the upper movable rod door locking structure group is hingedly connected to the corresponding first connecting seat; a second connecting seat corresponding to each lower driving rod in the lower movable rod door locking structure group is arranged on the lower connecting rod, and an end of each lower driving rod in the lower movable rod door locking structure group is hingedly connected to the corresponding second connecting seat; A third connection seat is arranged at the lower part of the upper connection rod, and the right end of the second driving rod is hingedly connected to the third connection seat; a fourth connection seat is arranged at the upper part of the lower connection rod, and the left end of the second driving rod is hingedly connected to the fourth connection seat.

4. The weld-through fully partitioned biosafety sterilization cabinet according to claim 1 is characterized in that: The structure of the side of the cabinet door hinged to the material inlet and outlet of the sterilization cabinet body is as follows: a first hinge seat and a second hinge seat are fixedly connected on the left side of the material inlet and outlet of the sterilization cabinet body, a first hinge through hole is arranged on the first hinge seat, and a second hinge through hole is arranged on the second hinge seat; an upper hinge and a lower hinge are fixedly installed on the left side of the cabinet door, a third hinge through hole is arranged on the upper hinge, and a fourth hinge through hole is arranged on the lower hinge; the lower end of the main shaft passes through the fourth hinge through hole and the lower plane bearing in sequence downward and then extends into the second hinge through hole, and the main shaft is circumferentially fixed to the lower hinge; the upper end of the main shaft passes through the first hinge through hole, the upper plane bearing, and the third hinge through hole in sequence upward and then extends upward, and the main shaft is circumferentially fixed to the upper hinge; the main shaft is axially positioned by an axial positioning structure, and the main shaft extending upward out of the third hinge through hole is driven to rotate by a main shaft driving device arranged on the sterilization cabinet body.

5. The weld-through fully partitioned biosafety sterilization cabinet according to claim 4 is characterized in that: The structure of the spindle drive device is as follows: a motor seat with a driving motor is fixedly arranged on the top of the sterilization cabinet body, the motor shaft of the driving motor is connected to the reduction box, a driving bevel gear is fixedly arranged on the output shaft of the reduction box, and a driven bevel gear meshing with the driving bevel gear to form a gear transmission is fixedly arranged at the upper end of the spindle; A limit rod is fixedly arranged on the output shaft of the reduction box, and a travel switch is fixedly arranged on the motor seat. The position of the travel switch is that the limit rod can trigger the travel switch when the driving motor drives the closed cabinet door to rotate outward by an angle α through the gear transmission drive main shaft composed of an active bevel gear and a driven bevel gear; α=90~92°.

6. The weld-through fully partitioned biosafety sterilizer according to claim 4 or 5, characterized in that: The main shaft consists of a first main shaft and a second main shaft; a downwardly protruding block is arranged on the lower end face of the first main shaft, and a slot for the block to be embedded is opened downwardly on the upper end face of the second main shaft; the lower end of the second main shaft passes through the fourth hinge through hole and the lower plane bearing and then extends into the second hinge through hole, and the second main shaft is circumferentially fixed to the lower hinge; the upper end of the second main shaft passes through the first hinge through hole and the upper plane bearing and then extends into the third hinge through hole, the lower end of the first main shaft extends into the third hinge through hole and the block is embedded in the slot, and the first main shaft is circumferentially fixed to the upper hinge.

7. The weld-through fully partitioned biosafety sterilization cabinet according to claim 6 is characterized in that: A first internal thread section is machined in the first hinge through hole, and an upper sleeve with a first external thread section is screwed upward into the first hinge through hole from the lower end of the first hinge through hole, and the second main shaft is movably inserted into the upper sleeve; two symmetrical first planes are cut on the circumference of the first main shaft located at the third hinge through hole, and the inner wall of the first plugging hole sleeve corresponds to the outer contour of the first main shaft at the first plane, and the first plugging hole sleeve is inserted between the first main shaft and the third hinge through hole to perform circumferential positioning of the first main shaft and the upper hinge; A second internal thread section is machined in the second hinged through hole, and a lower sleeve with a second external thread section is screwed upwardly into the second hinged through hole from the lower end of the second hinged through hole, and the lower end of the second main shaft extends into the lower sleeve; two symmetrical second planes are cut on the circumference of the second main shaft located at the fourth hinged through hole, and the inner wall of the second plugging hole sleeve corresponds to the outer contour of the second main shaft at the second plane, and the second plugging hole sleeve is inserted between the second main shaft and the fourth hinged through hole to perform circumferential positioning of the second main shaft and the lower hinge; The axial positioning structure is as follows: the lower end opening of the lower sleeve is closed, an internal threaded through hole is opened on the lower end surface of the lower sleeve, and the bolt is screwed into the internal threaded through hole and abuts against the lower end surface of the second spindle, thereby axially positioning the spindle.

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