A lyophilizer small door assembly and lyophilizer

Abstract

The utility model discloses a kind of freeze dryer small door components and freeze dryer, freeze dryer small door component includes freeze dryer small door, lifting pivot and rotating handle, the freeze dryer small door is rotatably arranged on freeze dryer, transmission shaft of the freeze dryer small door is equipped with the first connecting piece for being connected with servo motor output shaft or lifting pivot;Lifting pivot one end is equipped with the second connecting piece matched with the first connecting piece, and the lifting pivot is connected with the rotating handle.The utility model is connected with the transmission shaft of freeze dryer small door by setting a lifting pivot and rotating handle, which can be connected.When servo motor fails, leading to freeze dryer small door cannot be normally opened, detachable fault servo motor, the transmission shaft of lifting pivot is butt joint with freeze dryer small door, by artificial rotating rotating handle, freeze dryer small door can be manually opened or closed, to ensure that production process is not interrupted, and effectively guarantee production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of freeze dryers, and more particularly to a freeze dryer door assembly and a freeze dryer. Background Technology

[0002] The automatic feed / discharge door of a freeze dryer is mainly used to achieve efficient sealing, reliable closing, and rapid opening of the freeze dryer. Working in conjunction with the automatic feed / discharge system and isolators, it significantly improves the convenience and safety of material transfer during sterile drug production. With market upgrades and technological advancements, the requirements for the safety and operational reliability of automatic feed / discharge doors for freeze dryers are increasingly stringent. For example... Figure 1 As shown, to meet automation requirements, the freeze dryer door 1 typically uses a servo motor 2 as its drive source. However, the servo motor 2 may malfunction under certain circumstances, leading to abnormal operation. How to effectively ensure the smooth opening of the door to maintain normal production order when the servo motor 2 of the freeze dryer door 1 fails has become a critical technical problem that urgently needs to be solved. Therefore, developing a manual lifting emergency device suitable for freeze dryer doors has significant engineering application value. Utility Model Content

[0003] This utility model provides a lifting device for the small door of a freeze dryer, as well as the small door and the freeze dryer, aiming to improve the problem of how to open the small door of the freeze dryer when the servo motor of the small door fails, so as to achieve the effect of not affecting production efficiency.

[0004] Specifically, this utility model provides a freeze dryer door assembly, including a freeze dryer door, a lifting shaft, and a rotating handle. The freeze dryer door is rotatably mounted on the freeze dryer. The drive shaft of the freeze dryer door is provided with a first connector for connecting to the output shaft of a servo motor or the lifting shaft. One end of the lifting shaft is provided with a second connector that matches the first connector. The lifting shaft is connected to the rotating handle.

[0005] Optionally, the freeze dryer door assembly also includes a limiting component, which is detachably mounted on the freeze dryer or the freeze dryer door. The lifting shaft passes through the limiting component and is rotatably connected to the limiting component.

[0006] Optionally, the limiting assembly includes a base plate and a bearing. The base plate is used to be installed on the freeze dryer or the freeze dryer door. The bearing is installed on the base plate by bolts and is sleeved on the lifting shaft.

[0007] Optionally, the end of the lifting shaft away from the second connecting member is provided with a screw with a diameter smaller than that of the lifting shaft, and the rotating handle is provided with a mounting hole, through which the screw passes and is screwed to a nut.

[0008] Optionally, the first connector is a snap-fit ​​groove, and the second connector is a snap-fit ​​post.

[0009] Optionally, the first connector is a threaded groove, and the second connector is a thread provided at the end of the lifting shaft.

[0010] This utility model also provides a freeze dryer, including a housing, a door, and a freeze dryer door assembly according to any one of the above; the door is hinged to the housing, the door has an opening, and the freeze dryer door is rotatably mounted on the door and located at the opening to open or block the opening.

[0011] The beneficial effects of this utility model are as follows:

[0012] The freeze dryer door assembly provided by this utility model includes a lifting shaft that can be connected to the drive shaft of the freeze dryer door, and a rotating handle. When the servo motor malfunctions, preventing the freeze dryer door from opening normally, the faulty servo motor can be removed, the lifting shaft can be connected to the drive shaft of the freeze dryer door, and the door can be manually opened or closed by manually rotating the rotating handle, thus ensuring that the production process is not interrupted and effectively guaranteeing production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic structural diagram of a freeze dryer in the prior art;

[0014] Figure 2 This is a schematic structural diagram of a freeze dryer provided in one embodiment of the present invention;

[0015] Figure 3 yes Figure 2 A schematic enlarged view of part A in the diagram.

[0016] Explanation of reference numerals in the attached figures:

[0017] Existing technologies: 1. Freeze dryer door; 2. Servo motor;

[0018] This utility model includes: 3. Freeze dryer door, 4. Second connecting piece, 5. Lifting shaft, 6. Base plate, 7. Bearing, 8. Rotating handle, 9. Nut, 10. Bolt. Detailed Implementation

[0019] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Figure 2 This is a schematic structural diagram of a freeze dryer provided in one embodiment of this utility model. Figure 2 As shown, and refer to Figure 3 This utility model provides a freeze dryer door assembly, including a freeze dryer door 3, a lifting shaft 5, and a rotating handle 8. The freeze dryer door 3 is rotatably mounted on the freeze dryer. The drive shaft of the freeze dryer door 3 is provided with a first connector for connecting to the output shaft of a servo motor or the lifting shaft 5. One end of the lifting shaft 5 is provided with a second connector 4 that matches the first connector. The lifting shaft 5 is connected to the rotating handle 8.

[0023] In this embodiment, a lifting shaft 5 and a rotating handle 8 are provided, which can be connected to the drive shaft of the freeze dryer door 3. When the servo motor fails and the freeze dryer door 3 cannot be opened normally, the faulty servo motor can be removed, the lifting shaft 5 can be connected to the drive shaft of the freeze dryer door 3, and the door can be manually opened or closed by manually rotating the rotating handle 8, thereby ensuring that the production process is not interrupted and effectively guaranteeing production efficiency.

[0024] In one embodiment of this utility model, the freeze dryer door assembly further includes a limiting component, which is detachably mounted on the freeze dryer or the freeze dryer door 3. The lifting shaft 5 passes through the limiting component and is rotatably connected to it. Since the lifting shaft 5 needs to transmit torque in manual or automatic operation, the limiting component effectively constrains its radial displacement and sway, thereby avoiding vibration or offset during rotation, ensuring the stability and reliability of force transmission, and reducing the risk of unexpected failures.

[0025] like Figure 3 As shown, specifically, the limiting assembly includes a base plate 6 and a bearing 7. The base plate 6 is used to install on the freeze dryer or the freeze dryer door 3; the bearing 7 is installed on the base plate 6 by bolts 10, and the bearing 7 is sleeved on the lifting shaft 5. The base plate 6 and bearing 7 limit unnecessary vibration and offset of the lifting shaft 5, and the movement is achieved through the rolling elements inside the bearing, whose frictional resistance is much lower than that of the shaft sliding directly within the holes in the base plate. This makes manual operation of the rotating handle 8 easier and significantly reduces wear between the shaft and the mounting holes, extending the service life of the equipment.

[0026] In one embodiment of this utility model, a screw with a diameter smaller than that of the lifting shaft 5 is provided at the end of the lifting shaft 5 away from the second connecting member. The rotating handle 8 is provided with a mounting hole. After the screw at the end of the lifting shaft 5 passes through the mounting hole of the rotating handle 8, it is fastened by a nut 9. This connection method utilizes the self-locking characteristic of the thread and the preload generated after the nut is tightened to form a firm connection between the rotating handle 8 and the lifting shaft 5.

[0027] In one embodiment of this utility model, the first connecting member is a snap-fit ​​groove, and the second connecting member is a snap-fit ​​post. The snap-fit ​​groove and the snap-fit ​​post enable a detachable connection between the drive shaft of the freeze dryer door 3 and the output shaft of the servo motor or the lifting shaft 5. Alternatively, the first connecting member is a threaded groove, and the second connecting member is a thread provided at the end of the lifting shaft 5. Alternatively, the first connecting member and the second connecting member 4 can be any of the existing components that can be quickly assembled and disassembled.

[0028] This utility model embodiment also provides a freeze dryer, including a housing, a door, and a freeze dryer door assembly according to any of the above embodiments, to have all the effects of a freeze dryer door assembly. The door is hinged to the housing, and the door has an opening. The freeze dryer door 3 is rotatably mounted on the door and located at the opening to open or close the opening.

[0029] Under normal operating conditions, the output shaft of the servo motor directly drives the transmission shaft of the freeze dryer's small door 3, achieving automatic opening and closing of the door through program control. When the servo motor malfunctions, it can switch to emergency operation mode: remove the faulty motor, install the lifting shaft 5 and connect it to the transmission shaft, and the operator can manually control the door's movement by rotating the handle 8, achieving reliable operational redundancy.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A freeze dryer door assembly, characterized in that, The device includes a freeze dryer door (3), a lifting shaft (5), and a rotating handle (8). The freeze dryer door (3) is rotatably mounted on the freeze dryer. The drive shaft of the freeze dryer door (3) is provided with a first connector for connecting to the output shaft of a servo motor or the lifting shaft (5). One end of the lifting shaft (5) is provided with a second connector (4) that matches the first connector. The lifting shaft (5) is connected to the rotating handle (8).

2. The freeze dryer door assembly according to claim 1, characterized in that, It also includes a limiting component, which is detachably installed on the freeze dryer or the freeze dryer door (3), and the lifting shaft (5) passes through the limiting component and is rotatably connected to the limiting component.

3. The freeze dryer door assembly according to claim 2, characterized in that, The limiting assembly includes a base plate (6) and a bearing (7). The base plate (6) is used to be installed on the freeze dryer or the freeze dryer door (3). The bearing (7) is installed on the base plate (6) by bolts (10) and is sleeved on the lifting shaft (5).

4. The freeze dryer door assembly according to claim 1, characterized in that, The lifting shaft (5) has a screw with a diameter smaller than that of the lifting shaft (5) at one end away from the second connector. The rotating handle (8) has a mounting hole, and the screw passes through the mounting hole and is screwed to the nut (9).

5. The freeze dryer door assembly according to claim 1, characterized in that, The first connector is a snap-fit ​​groove, and the second connector (4) is a snap-fit ​​post.

6. The freeze dryer door assembly according to claim 1, characterized in that, The first connector is a threaded groove, and the second connector (4) is a thread provided at the end of the lifting shaft (5).

7. A freeze dryer, characterized in that, It includes a housing, a door, and a freeze dryer door assembly according to any one of claims 1 to 6; the door is hinged to the housing, the door has an opening, and the freeze dryer door (3) is rotatably disposed on the door and located at the opening to open or block the opening.

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