Lifting device

Abstract

The utility model relates to a lifting device which comprises a base, a lifting driving component, a transmission assembly and at least two lead screws are arranged on the base, and threaded sleeves are connected to the lead screws in a threaded mode. And the threaded sleeve is fixedly connected with the supporting part. The lifting driving component drives the lead screws to rotate through the transmission assembly, the at least two lead screws are arranged on the base, the lead screws are in threaded connection with the threaded sleeves correspondingly, the threaded sleeves are fixedly connected with the supporting part, the threaded sleeves are limited to rotate along with the lead screws through the supporting part, and therefore the sleeves can ascend or descend in the axial direction of the lead screws; the supporting part is matched with an object needing to be lifted, so that lifting of the object is achieved. The lifting height of the lifting device is larger than the length of the lead screw, and when the lifting device is applied to the working condition that the space between two basic characteristics needs to be expanded, the lifting device can be loaded into the space between the two basic characteristics, and the space between the two basic characteristics can be expanded.

Description

Technical Field

[0001] This utility model relates to the field of lifting technology, and in particular to a lifting device. Background Technology

[0002] Currently, existing electrically driven screw-slider lifting devices achieve lifting by moving the slider along the axial direction of the screw. However, in situations where the spatial position between two foundation features is fixed, if it is necessary to expand the space between the two foundation features (such as when maintenance is needed between the two foundation features or when items larger than the current foundation space need to be loaded between the two foundation features), the electric screw-slider lifting device, which can load items into the space between the two foundation features due to the fixed length of the screw, cannot expand the space between the two foundation features. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a lifting device to solve the problem that the existing electric drive screw slider lifting device cannot expand the space between two basic features.

[0004] To achieve the above and other related objectives, this utility model provides a lifting device, comprising:

[0005] A base, on which a transmission assembly is provided;

[0006] A lifting drive component is disposed on the base, the lifting drive component is connected to the transmission assembly, and the lifting drive component is used to provide driving force to the transmission assembly;

[0007] At least two lead screws are rotatably mounted on the base, and the lead screws are connected to the transmission assembly. The transmission assembly is used to transmit the driving force of the lifting drive component to the lead screws to drive the lead screws to rotate.

[0008] At least two threaded sleeves are provided, and the threaded sleeves are threadedly connected to the lead screw.

[0009] The support portion, at least two of the threaded sleeves are fixedly connected to the support portion.

[0010] Optionally, the transmission assembly includes a driving gear and at least two driven gears. The driving gear is connected to the lifting drive component, the driven gears are connected to the lead screw, and the driven gears mesh with the driving gear.

[0011] Optionally, the base has a cavity, and the driving gear and the driven gear are disposed in the cavity.

[0012] Optionally, the cavity is provided with lubricating oil, and the level of the lubricating oil is less than 1 / 2 of the height of the cavity.

[0013] Optionally, the lifting drive component is equipped with a Bluetooth receiving module, which is used to interact with mobile devices via Bluetooth.

[0014] Optionally, the threaded sleeve is provided with a spline segment, and the support is provided with a spline groove, wherein the spline segment and the spline groove are splinedly connected.

[0015] Optionally, the groove depth of the spline is less than the thickness of the support portion.

[0016] Optionally, the spline segment is provided with a threaded locking hole, and the support part is coaxially provided with a through hole, which communicates with the spline groove. The through hole is used to pass through the locking member and lock and fix it with the threaded locking hole.

[0017] Optionally, the length of the threaded sleeve is greater than or equal to the length of the lead screw.

[0018] Optionally, the support portion is provided with an anti-slip layer.

[0019] As described above, this utility model has the following beneficial effects: the base supports the entire lifting device, ensuring that the lifting device can smoothly achieve lifting operations during operation; the driving force of the lifting drive component is transmitted to the lead screw through the transmission assembly, driving the lead screw to rotate. Since at least two lead screws are provided on the base, each lead screw has a corresponding threaded sleeve connected to it, and the threaded sleeves are all fixedly connected to the support part. By interfering with the threaded sleeves on different lead screws through the support part, the threaded sleeves are restricted from rotating with the lead screw, allowing the sleeves to move up or down along the axial direction of the lead screw. By cooperating with the item to be lifted through the support part, the lifting of the item is achieved. The lifting device proposed in this application can lift a height greater than the length of the lead screw. When applied to a situation where the space between two basic features needs to be expanded, this application can meet the requirement of loading into the space between two basic features and can expand the space between the two basic features. Attached Figure Description

[0020] Figure 1 The diagram shown is a structural schematic of the lifting device illustrated in an embodiment of this application;

[0021] Figure 2 Displayed as Figure 1 Schematic diagram of the cross-sectional structure of the lifting device;

[0022] Figure 3 Displayed as Figure 2 Enlarged schematic diagram of the structure of section A in the middle;

[0023] Figure 4 The diagram shows the working state of the lifting device and two basic features as illustrated in the embodiments of this application.

[0024] Figure 5 The diagram shown is a structural schematic of a threaded sleeve as illustrated in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] Base 1, cavity 101, lubricating oil 102, transmission component 2, drive gear 201, driven gear 202, lifting drive component 3, lead screw 4, threaded sleeve 5, spline section 501, support part 6, spline groove 601, anti-slip layer 602, locking part 7. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0028] Please see Figures 1 to 5 It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components relevant to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, and sizes shown in the accompanying drawings are only for illustrative purposes and to assist those skilled in the art in understanding and reading the content disclosed in the specification. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0029] Before describing the embodiments of this utility model in detail, the application environment of this utility model will be described first. The technology of this utility model is mainly applied in the field of lifting technology. This utility model is used to solve the problem that existing electric drive screw slider lifting devices cannot expand the space between two basic features.

[0030] Please combine Figures 1 to 5 As shown, this utility model provides a lifting device.

[0031] In an exemplary embodiment of this application, the lifting device includes: a base 1, on which a transmission assembly 2 is provided; a lifting drive component 3, disposed on the base 1, connected to the transmission assembly 2, the lifting drive component 3 being used to provide driving force to the transmission assembly 2; at least two lead screws 4, rotatably disposed on the base 1, and connected to the transmission assembly 2, the transmission assembly 2 being used to transmit the driving force of the lifting drive component 3 to the lead screws 4 to drive the lead screws 4 to rotate; at least two threaded sleeves 5, the threaded sleeves 5 being threadedly connected to the lead screws 4; and a support portion 6, to which the at least two threaded sleeves 5 are fixedly connected.

[0032] In this embodiment, the base 1 supports the entire lifting device, ensuring that the lifting device can smoothly perform lifting operations during operation. The driving force of the lifting drive component 3 is transmitted to the lead screw 4 through the transmission assembly 2, driving the lead screw 4 to rotate. Since at least two lead screws 4 are provided on the base 1, each lead screw 4 is threadedly connected to a threaded sleeve 5, and the threaded sleeves 5 are fixedly connected to the support part 6. The support part 6 interferes with the threaded sleeves 5 on different lead screws 4, restricting the threaded sleeves 5 from rotating with the lead screw 4, so that the sleeves can move up or down along the axial direction of the lead screw 4. By cooperating with the item to be lifted through the support part 6, the lifting of the item is achieved. The lifting device proposed in this application can lift a height greater than the length of the lead screw 4. When applied to the situation where the space between two basic features needs to be expanded, this application can meet the requirement of loading into the space between two basic features and expanding the space between the two basic features.

[0033] Specifically, the lifting device shown in this embodiment is applied to the field of freeze-drying technology. With the continuous maturation of freeze-drying technology and the continuous optimization and improvement of freeze-drying equipment functions, more and more pharmaceutical companies are establishing freeze-drying production lines. However, few manufacturers can produce freeze-dried products in a single freeze dryer using only one bottle type, especially pharmaceutical companies providing R&D and production services, whose freeze-dried products have a wide variety of bottle types. Consequently, the required plate spacing varies depending on the bottle type. Currently, adjusting the plate spacing is even more important in experimental freeze dryers and some pilot freeze dryers in R&D laboratories. Generally, laboratory freeze dryers are used to explore freeze-drying processes, determine freeze-drying curves, and optimize freeze-drying curves. Therefore, different drugs have significantly different requirements for bottle specifications due to their characteristics or production capacity limitations. The diversity of bottle heights leads to uncertainty in the plate spacing. If the plate spacing is too small, taller bottles cannot be loaded. Furthermore, since there are many silicone oil pipelines in the freeze dryer's plates, mechanical modifications would damage the freeze dryer's silicone oil system. By using the lifting device shown in the embodiments of this application between the plates of the freeze dryer, the distance between two adjacent plates can be adjusted by the lifting device to accommodate bottles of different heights, thereby enabling the freeze dryer to adapt to freeze-drying operations for vials of different heights and effectively improving the compatibility of the freeze dryer.

[0034] In an exemplary embodiment of this application, the transmission assembly 2 includes a drive gear 201 and at least two driven gears 202. The drive gear 201 is connected to the lifting drive component 3, and the driven gears 202 are connected to the lead screw 4. The driven gears 202 mesh with the drive gear 201.

[0035] In this embodiment, the lifting drive component 3 is a servo motor. The output shaft of the lifting drive component 3 is connected to the drive gear 201. The lifting drive component 3 drives the drive gear 201 to rotate, and the drive gear 201 drives the driven gear 202 to rotate, thereby transmitting the driving force of the lifting drive component 3 to the lead screw 4, driving the lead screw 4 to rotate, thereby driving the threaded sleeve 5 to move up and down along the axial direction of the lead screw 4.

[0036] In an exemplary embodiment of this application, a cavity 101 is provided in the base 1, and a drive gear 201 and a driven gear 202 are disposed in the cavity 101.

[0037] In this embodiment, the base 1 is provided with a through hole for the output shaft of the lifting drive component 3 and the lead screw 4 to pass through. The through hole is connected to the cavity 101 of the base 1. The output shaft and lead screw 4 of the lifting drive component 3 are rotatably connected to the through hole. By setting the driving gear 201 and the driven gear 202 in the cavity 101 of the base 1, the cavity 101 can provide working space for the driving gear 201 and the driven gear 202.

[0038] In an exemplary embodiment of this application, a lubricating oil 102 is provided in the cavity 101, and the liquid level of the lubricating oil 102 is less than 1 / 2 of the height of the cavity 101.

[0039] In this embodiment, by providing lubricating oil 102 within the cavity 101, the driving gear 201 and driven gear 202 can splash the lubricating oil 102 during operation, thereby providing splash lubrication for the driving gear 201 and driven gear 202. The purpose of setting the lubricating oil 102 to a height less than half the height of the cavity 101 is that, since the output shaft and lead screw 4 of the lifting drive component 3 are rotatably connected to the base 1, the output shaft and lead screw 4 of the lifting drive component 3 and the through holes on the base 1 are all clearance fits. By setting the lubricating oil 102 to a height less than half the height of the cavity 101, the lubricating oil 102 can be effectively prevented from overflowing from the through holes.

[0040] In an exemplary embodiment of this application, the lifting drive component 3 is provided with a Bluetooth receiving module, which is used to interact with a mobile device via Bluetooth.

[0041] In this embodiment, Bluetooth technology is a short-range wireless communication technology that allows devices to transmit data without a physical connection. This technology is well-suited for communication between small, portable devices, such as mobile devices like smartphones and tablets, and the lifting drive component 3 (motor). By integrating the Bluetooth receiver module into the lifting drive component 3 (motor), the Bluetooth module can receive commands from the mobile device and convert these commands into signals that the motor can understand, thereby controlling the motor's lifting motion.

[0042] In an exemplary embodiment of this application, the threaded sleeve 5 is provided with a spline segment 501, and the support part 6 is provided with a spline groove 601, and the spline segment 501 and the spline groove 601 are splinedly connected.

[0043] In this embodiment, the threaded sleeve 5 and the support part 6 are locked together by a locking member 7 (countersunk screw). By providing a spline groove 601 on the support part 6 and a spline segment 501 on the threaded sleeve 5, the support part 6 and the threaded sleeve 5 can be quickly positioned and installed. After positioning and installation, they are locked and fixed by the locking member 7. Since the threaded sleeve 5 and the support part 6 are detachably connected, the spline connection between the spline segment 501 and the spline groove 601 effectively ensures that there is no relative rotation between the threaded sleeve 5 and the support part 6, thereby ensuring the normal operation of the lifting device.

[0044] Specifically, by designing the threaded sleeve 5 and the support part 6 as a detachable connection, the user can determine the length of the threaded sleeve 5 according to the required space between the two basic features, so that the lifting device can meet the needs of more space and effectively improve the compatibility of the lifting device.

[0045] In an exemplary embodiment of this application, the groove depth of the spline groove 601 is less than the thickness of the support portion 6.

[0046] In this embodiment, the spline groove 601 is a blind hole opened on the support part 6. The remaining thickness of the support part 6 along the slotting direction of the spline groove 601 provides support for the locking and fixing of the support part 6 and the threaded sleeve 5.

[0047] In an exemplary embodiment of this application, the spline segment 501 is provided with a threaded locking hole, the support part 6 and the spline groove 601 are coaxially provided with a through hole, and the through hole communicates with the spline groove 601. The through hole is used to pass through the locking member 7 and lock and fix it with the threaded locking hole.

[0048] In this embodiment, the locking member 7 is a countersunk screw. The locking member 7 passes through the through hole on the support part 6 and enters the spline groove 601, and is threadedly connected to the threaded locking hole opened on the spline segment 501 installed in the spline groove 601, thereby realizing the locking and fixing of the threaded sleeve 5 to the support part 6.

[0049] In an exemplary embodiment of this application, the length of the threaded sleeve 5 is greater than or equal to the length of the lead screw 4.

[0050] In this embodiment, the lifting device can achieve a minimum lifting stroke of at least the length of the lead screw 4, enabling the lifting device to meet a variety of working conditions and effectively improving the practicality of the lifting device.

[0051] In an exemplary embodiment of this application, the support portion 6 is provided with an anti-slip layer 602.

[0052] In this embodiment, the anti-slip layer 602 includes, but is not limited to, being made of rubber. By providing the anti-slip layer 602 on the support part 6, the lifting device can effectively increase the friction between the object on the support part 6 and the support part 6 when performing lifting operations, thereby reducing the risk of shaking or relative sliding between the object and the support part 6 and effectively improving the stability of the lifting device when performing lifting operations.

[0053] Working principle: The base 1 supports the entire lifting device, ensuring stable lifting operations during operation. The driving force of the lifting drive component 3 is transmitted to the lead screw 4 through the transmission assembly 2, driving the lead screw 4 to rotate. Since at least two lead screws 4 are mounted on the base 1, each lead screw 4 has a corresponding threaded sleeve 5 connected to it, and the threaded sleeves 5 are fixedly connected to the support part 6. The support part 6 interferes with the threaded sleeves 5 on different lead screws 4, restricting the threaded sleeves 5 from rotating with the lead screw 4, allowing the sleeves to rise or fall along the axial direction of the lead screw 4. The support part 6 cooperates with the object to be lifted, thereby achieving the lifting of the object. The lifting device proposed in this application can lift to a height greater than the length of the lead screw 4. When applied to situations where the space between two basic features needs to be expanded, this application can accommodate loading into the space between two basic features and expand the space between them.

[0054] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A lifting device, characterized in that, include: A base, on which a transmission assembly is provided; A lifting drive component is disposed on the base, the lifting drive component is connected to the transmission assembly, and the lifting drive component is used to provide driving force to the transmission assembly; At least two lead screws are rotatably mounted on the base, and the lead screws are connected to the transmission assembly. The transmission assembly is used to transmit the driving force of the lifting drive component to the lead screws to drive the lead screws to rotate. At least two threaded sleeves are provided, and the threaded sleeves are threadedly connected to the lead screw. The support portion, at least two of the threaded sleeves are fixedly connected to the support portion.

2. The lifting device according to claim 1, characterized in that: The transmission assembly includes a driving gear and at least two driven gears. The driving gear is connected to the lifting drive component, and the driven gears are connected to the lead screw. The driven gears mesh with the driving gear.

3. The lifting device according to claim 2, characterized in that: The base has a cavity, and the driving gear and the driven gear are disposed in the cavity.

4. The lifting device according to claim 3, characterized in that: The cavity contains lubricating oil, and the level of the lubricating oil is less than 1 / 2 of the cavity height.

5. The lifting device according to claim 1, characterized in that: The lifting drive component is equipped with a Bluetooth receiving module, which is used to interact with mobile devices via Bluetooth.

6. The lifting device according to claim 1, characterized in that: The threaded sleeve is provided with a spline section, and the support part is provided with a spline groove. The spline section and the spline groove are splinedly connected.

7. The lifting device according to claim 6, characterized in that: The depth of the spline groove is less than the thickness of the support portion.

8. The lifting device according to claim 7, characterized in that: The spline segment is provided with a threaded locking hole, and the support part is coaxially provided with a through hole, which is connected to the spline groove. The through hole is used to pass through the locking member and lock and fix it with the threaded locking hole.

9. The lifting device according to claim 1, characterized in that: The length of the threaded sleeve is greater than or equal to the length of the lead screw.

10. The lifting device according to claim 1, characterized in that: The support portion is provided with an anti-slip layer.

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