Lifter with oil gathering function and electric lifting bed with lifter with oil gathering function

Abstract

The utility model belongs to the field of intelligent furniture, and provides a lifter with an oil gathering function and an electric lifting bed with the lifter with the oil gathering function, the lifter with the oil gathering function comprises a lead screw, a nut component and a motor, and the nut component comprises an oil cup and an internal thread nut. The electric lifting bed with the lifter with the oil gathering function comprises a bed body, bed legs and a control device, the lifter with the oil gathering function is installed on the bed legs, a nut component and the lead screw are arranged in an outer pipe, and a motor is arranged on the outer side of the outer pipe. The nut component and the lead screw can be guaranteed to be provided with lubricating oil for a long time, the smoothness of lifting action is improved, the actual service life of the whole device is prolonged, safety is high, and the device is suitable for large-scale popularization.

Description

Technical Field

[0001] This utility model belongs to the field of smart furniture, and in particular relates to an oil-collecting lifting device and an electric lifting bed with an oil-collecting lifting device. Background Technology

[0002] With the advent of the intelligent era, furniture has become more intelligent to some extent. In particular, in the integration of intelligent furniture functions, people have begun to adopt the design of lift-up beds to solve the problem of large furniture taking up a lot of space in big cities with high housing prices. The emergence of lift-up beds can solve this problem to some extent.

[0003] When using the bed, lower the lifting bed to its normal height. When not in use, raise the bed to a high position to free up space underneath. Since the lifting bed is used frequently, there should be at least two lifting mechanisms. The up and down movement should be smooth and unobstructed. In particular, if the lifting mechanism uses a screw and nut system, the screw and nut need to slide smoothly together. However, traditional screw and nut systems on the market cannot retain lubricating oil for a long time. Once the lubricating oil is lacking, it is very easy for the two lifting mechanisms to not slide smoothly and synchronously, which will directly affect the use of the lifting bed. Utility Model Content

[0004] This utility model addresses the technical problems existing in the lubricating oil storage of the aforementioned lifting mechanism by proposing a reasonably designed oil-collecting lifting device and an electric lifting bed with an oil-collecting lifting device, which is conducive to ensuring the smoothness of lifting action, extending the actual service life of the product, and having high safety.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an oil-collecting functional lifting device and an electric lifting bed with an oil-collecting functional lifting device, including a lead screw, a nut component that is driven and cooperates with the lead screw, a motor that is driven and connected to the top of the lead screw, the nut component including an oil cup, the oil cup being funnel-shaped, and an internal thread nut being provided below the oil cup, the motor driving the lead screw to rotate and drive the oil cup and the internal thread nut to perform lifting and lowering actions, the oil cup providing lubricating oil to the lead screw and the internal thread nut during the lifting and lowering action.

[0006] Preferably, the oil cup and the internal thread nut are nested together, and the inner cavity of the oil cup is connected to the transmission surface of the internal thread nut and the lead screw.

[0007] Preferably, the oil cup includes a funnel portion, the inner wall of which is provided with a plurality of protrusions distributed along its inner circumference, the protrusions extending downward at an incline, and the bottom of the funnel portion is provided with a cup compartment portion that is nested with an internal thread nut.

[0008] An electric lifting bed with an oil-collecting lifting device includes a bed body, bed legs, and a control device. The bed legs have an I-shaped structure and include a horizontal tube, an inner tube, and an outer tube. The horizontal tube is located at the bottom of the inner tube, and the outer tube is sleeved on top of the inner tube. The outer tube is used to install the oil-collecting lifting device. The nut component and the lead screw are located inside the outer tube, and the motor is located outside the outer tube.

[0009] Preferably, the bed legs are arranged in pairs on the left and right sides of the bed, and each bed leg is equipped with an oil-collecting lifting device. The motor is a geared DC motor and is equipped with a Hall sensor.

[0010] Preferably, the control device includes at least a MUC processor and two PWM modules, wherein the MUC processor is electrically connected to a Hall sensor and the PWM modules are electrically connected to a motor.

[0011] Preferably, a bed ladder is provided on one side of the bed.

[0012] Preferably, a bookshelf is provided under the bed, and a desk is provided on one side of the bookshelf. When the bed is raised by the control device, the desk can create a gap between itself and the ground, which serves as the structural space under the desk.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. The present invention provides an oil-collecting lifting device, which uses an oil cup that can move synchronously with the internal thread nut to store lubricating oil. When the lead screw rotates in the forward direction, the lubricating oil in the nut component is scraped up to the oil cup. When the lead screw rotates in the reverse direction, the lubricating oil in the oil cup flows into the transmission surface of the nut component and the lead screw. This ensures that the nut component and the lead screw have lubricating oil for a long time, thereby improving the smoothness and safety of the lifting action.

[0015] 2. The electric lifting bed with an oil-collecting lifting device provided by this utility model can ensure the smoothness of the lifting action, extend the overall service life of this utility model, and has high safety, making it suitable for large-scale promotion. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1A perspective view of an electric lifting bed with an oil-collecting lifting device provided for an embodiment;

[0018] Figure 2 An installation diagram of an oil-collecting lifting device on a bed is provided for an embodiment.

[0019] Figure 3 An installation diagram of an oil-collecting lifting device on a bed (without an external tube) provided for an embodiment;

[0020] Figure 4 This is an enlarged schematic diagram of structure A in the figure;

[0021] Figure 5 A schematic diagram of the transmission of the lead screw and nut assembly provided in the embodiment;

[0022] Figure 6 A perspective view of the oil cup provided in the embodiment;

[0023] In the above figures: 1. Bed frame; 2. Bed legs; 21. Horizontal tube; 22. Inner tube; 23. Outer tube; 3. Bed ladder; 4. Bookshelf; 5. Desk; 6. Lead screw; 7. Nut assembly; 71. Oil cup; 711. Funnel part; 712. Protruding column; 713. Cup compartment part; 72. Internal thread nut; 8. Motor. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Examples, such as Figures 1-6As shown, this utility model provides an oil-collecting lifting device and an electric lifting bed with an oil-collecting lifting device, including a lead screw 6. A nut component 7 is provided on the lead screw 6 for transmission cooperation. A motor 8 is provided at the top of the lead screw 6 for transmission connection. The nut component 7 includes an oil cup 71, which is funnel-shaped. An internal thread nut 72 is provided below the oil cup 71. The motor 8 drives the lead screw to rotate, causing the oil cup 71 and the internal thread nut 72 to perform lifting actions. During the lifting action, the oil cup 71 provides lubricating oil to the lead screw and the internal thread nut 72. The connection method between the internal thread nut 72 and the oil cup 71 can be either integrally formed or a separate fastening method. This utility model preferentially adopts the separate fastening method, where the oil cup 71 and the internal thread nut 72 are processed separately and then assembled together. The connecting surfaces are fixed by tight fit and screw connection.

[0027] Specifically, the motor 8 drives the lead screw to rotate. The lead screw and the internal thread nut 72 cooperate to make the internal thread nut 72 carry the oil cup 71 to lift and lower. By using the oil cup 71, which can lift and lower synchronously with the internal thread nut 72, lubricating oil is stored. When the lead screw 6 rotates in the forward direction, the lubricating oil in the nut component 7 is scraped up to the oil cup 71. When the lead screw 6 rotates in the reverse direction, the lubricating oil in the oil cup 71 flows into the transmission surface between the nut component 7 and the lead screw 6. This ensures that the nut component 7 and the lead screw 6 have lubricating oil for a long time, thereby improving the smoothness and safety of the lifting and lowering action.

[0028] To improve the real-time oil storage performance of the oil cup 71, the oil cup 71 and the internal thread nut 72 provided by this utility model are nested together, with the inner cavity of the oil cup 71 connecting the internal thread nut 72 and the transmission surface of the lead screw 6. The oil filling hole of the internal thread nut 72 connects to its transmission surface with the lead screw 6, and the oil filling hole is located on the side of the internal thread nut 72. The oil cup 71 is connected to the oil filling hole, and the oil storage range of the oil cup 71 basically covers the circumference of the oil filling hole of the internal thread nut 72. This allows the lubricating oil in the oil cup 71 to be replenished and scraped in real time according to the oil usage of the transmission surface. For example, when the lead screw 6 rotates forward, the lubricating oil in the nut component 7 is scraped up to the oil cup 71; when the lead screw 6 rotates in the reverse direction, the lubricating oil in the oil cup 71 flows into the transmission surface between the nut component 7 and the lead screw 6.

[0029] Furthermore, the oil cup 71 provided by this utility model includes a funnel portion 711, on the inner wall of which are provided a plurality of protrusions 712 distributed along its inner circumference. The protrusions 712 extend downward at an incline. The bottom of the funnel portion 711 is provided with a cup compartment portion 713 nested with the internal thread nut 72. The funnel portion 711 provides a certain capacity and gives the lubricating oil a certain tendency to gravity. The protrusions 712 can play an oil guiding role, allowing some lubricating oil to enter the top of the internal thread nut 72, thereby lubricating the transmission surface where the thread is located. The cup compartment and the lower half of the internal thread nut 72 are tightly fitted, which improves the assembly quality of the oil cup 71 and the internal thread nut 72 on the one hand, and ensures the synchronous movement performance of the oil cup 71 and the internal thread nut 72 on the other hand. Especially when applied to an electric lifting machine, it can improve the quality of the lifting action of the outer tube 23.

[0030] An electric lifting bed with an oil-collecting lifting mechanism includes a bed body 1, bed legs 2, and a control device. The control device can be a mobile remote control or wall-mounted in another convenient location. The bed legs 2 have an I-shaped structure and include a horizontal tube 21, an inner tube 22, and an outer tube 23. The horizontal tube 21 is located at the bottom of the inner tube 22, and the outer tube 23 is fitted over the inner tube 22. The outer tube 23 is used to install the oil-collecting lifting mechanism. A nut component 7 and a lead screw 6 are located inside the outer tube 23, and a motor 8 is located outside the outer tube 23. The horizontal tube 21 supports the inner tube 22 and the outer tube 23, and the I-shaped support structure of the bed legs 2 provides basic support for the bed body 1. By installing the oil-collecting lifting mechanism on the outer tube 23, the outer tube 23 can be driven by the motor 8 to change its combined height with the inner tube 22. This enables the product to achieve a lifting function, saving interior space, and also helps to ensure the smoothness of the lifting action and extend the actual service life of the product.

[0031] To improve the safety of the electric lifting bed, the bed legs 2 provided by this utility model are arranged in pairs on the left and right sides of the bed body 1, and each bed leg 2 is equipped with an oil-collecting lifting device. The drive end on the left bed leg 2 is a left motor 8, and the drive end on the right bed leg 2 is a right motor 8. Both the left motor 8 and the right motor 8 are geared DC motors 8. The motors 8 are equipped with Hall sensors. The purpose of the Hall sensors is to detect the number of rotations of the motor 8 and transmit the information to the control device to increase or decrease the rotation speed according to the design requirements.

[0032] Furthermore, the control device provided by this utility model includes at least a MUC processor and two PWM modules. The MUC processor is electrically connected to a Hall sensor, and the PWM modules are electrically connected to the motor 8. Considering that the optimal installation position of the motor 8 is below the bed 1 and inside the right angle formed by the bed 1 and the bed legs 2, and that the transmission directions of the two motors 8 are opposite, this utility model prioritizes controlling the left and right motors 8 to rotate in opposite directions, while being able to drive the left and right motors 8 to rotate independently. Simultaneously, the control device increases or decreases the rotation speed of the left and right motors 8, and the transmission is achieved by the two PWM modules. This ensures the consistency of the rotation speed of the two motors 8, thereby ensuring the smoothness and safety of the bed 1's lifting and lowering movements.

[0033] To facilitate getting in and out of bed, this utility model provides a bed ladder 3 for climbing on one side of the bed frame 1. The bed ladder 3 is set off towards the head of the bed or one end of the bed to make room for the use of the desk 5.

[0034] To improve the overall utilization rate of this utility model, a bookshelf 4 is provided below the bed frame 1, and a desk 5 is provided on one side of the bookshelf 4. After the bed frame 1 is raised by the control device, the desk 5 can create a gap between itself and the ground, which serves as the structural space under the desk 5. This allows the device to combine the functions of a bed, bookshelf 4, and desk 5, which is beneficial for meeting the needs of modern buildings with limited interior space and multiple functional applications.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An oil-collecting functional lifting device, comprising a lead screw, a nut assembly for transmission engagement with the lead screw, and a motor for transmission connection with the top of the lead screw, characterized in that, The nut component includes an oil cup, which is funnel-shaped, and an internal thread nut is disposed below the oil cup. The motor drives the lead screw to rotate, causing the oil cup and the internal thread nut to move up and down. During the up and down movement, the oil cup provides lubricating oil to the lead screw and the internal thread nut.

2. The oil-concentrating functional lifting device according to claim 1, characterized in that, The oil cup and the internal thread nut are nested together, and the inner cavity of the oil cup is connected to the transmission surface of the internal thread nut and the lead screw.

3. The oil-collecting functional lifting device according to claim 2, characterized in that, The oil cup includes a funnel portion, on the inner wall of which are provided a plurality of protrusions distributed along its inner circumference. The protrusions extend downward at an angle, and the bottom of the funnel portion is provided with a cup compartment portion that is nested with an internal thread nut.

4. An electric lifting bed with an oil-collecting lifting device, characterized in that, The device includes a bed frame, bed legs, and a control device. The bed legs are I-shaped and include a horizontal tube, an inner tube, and an outer tube. The horizontal tube is located at the bottom of the inner tube, and the outer tube is sleeved above the inner tube. The outer tube is used to install an oil-collecting functional lifting device according to any one of claims 1-3. The nut component and the lead screw are located inside the outer tube, and the motor is located outside the outer tube.

5. An electric lifting bed with an oil-collecting lifting device according to claim 4, characterized in that, The bed legs are arranged in pairs on the left and right sides of the bed, and each bed leg is equipped with an oil-collecting lifting device. The motor is a geared DC motor and is equipped with a Hall sensor.

6. An electric lifting bed with an oil-collecting lifting device according to claim 5, characterized in that, The control device includes at least a MUC processor and two PWM modules. The MUC processor is electrically connected to a Hall sensor, and the PWM modules are electrically connected to a motor.

7. An electric lifting bed with an oil-collecting lifting device according to claim 4, characterized in that, A ladder is provided on one side of the bed.

8. An electric lifting bed with an oil-collecting lifting device according to claim 4, characterized in that, A bookshelf is installed under the bed, and a desk is installed on one side of the bookshelf. When the bed is raised by the control device, the desk can create a gap between itself and the ground. This gap serves as the structural space under the desk.

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