Four-wheel drive integrated electric bed frame

Abstract

The utility model relates to the field of electric bed frame, especially four drive integrated formula electric bed frame. Including one side pipe, two drive structures, every side pipe is installed with two drive structures integratively, in this structure, the internal drive piece is directly integrated and installed in the inside installation channel of side pipe, thereby realizes the integrated setting of drive motor and internal drive piece before the delivery of bed frame, can follow the whole transportation of bed frame, and the transportation space occupancy can be greatly reduced, and a large amount of transportation cost can be saved in the mass production transportation process, and the drive motor and internal drive piece also do not need to prepare the storage and transportation box to pack to carry out the split transportation, when transferring to the customer side, the welding and assembly of drive structure are not needed, only need to complete the assembly of subsequent bed frame and bed board through the rotation part, and the assembly is simple and quick.

Description

Technical Field

[0001] This utility model relates to the field of electric bed frames, and in particular to a four-wheel drive integrated electric bed frame. Background Technology

[0002] Electric beds are bed frames with electrically adjustable headboard or footboard height and freely adjustable curvature. They are divided into two main categories: slatted bed frames and flat bed frames. Slatted bed frames are called European-style electric beds, while flat bed frames are called American-style electric beds. Vibration or music functions may be added as needed, and they can now be remotely controlled via mobile devices. They are commonly used in homes or medical settings.

[0003] Existing patent CN202021042818.7 provides a modular electric bed drive mechanism, including a bed board support frame, which is composed of a pair of crossbars and a pair of longitudinal bars; a drive assembly mounted on the bed board support frame, the drive assembly including drive brackets respectively mounted on opposite sides of the two crossbars, and the drive brackets and crossbars forming an installation space; a pair of swing rods are installed in the installation space, the swing rods are movably connected to the drive brackets through the cooperation of bearings and bearing seats, and the swing rods are driven by independent linear drive motors installed in the installation space to swing. A swing arm is mounted on the swing rod, and the two swing arms located at the same longitudinal position in the two installation spaces cooperate to drive the same bed board to swing up and down. The advantage of this invention is that the drive mechanism uses two linear drive motors to drive the swing of the same bed board, ensuring the stability of the bed board's up and down movement and avoiding tilting.

[0004] The above-mentioned patented technologies still have the following defects:

[0005] If the entire unit is transported, the drive component needs to be installed on the crossbar in advance, which results in a large space occupied during transportation and higher transportation costs. If the components are transported separately, an additional drive component mounting box needs to be prepared, which will still increase transportation costs. Furthermore, the drive component needs to be welded and assembled after arriving at the destination, which is quite cumbersome.

[0006] The technical problem this utility model aims to solve is to provide a four-wheel drive integrated electric bed frame that has low transportation costs and still requires cumbersome welding assembly after transportation to the destination. Utility Model Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a four-drive integrated electric bed frame, the innovation of which is: including a side tube and two drive structures installed on the side tube, the drive structure including a drive motor, an internal drive component and a rocker arm arranged in sequence;

[0008] The drive motor and the internal drive components are both integrated and mounted on the side tube;

[0009] The side tube is hollow inside to form an installation channel, the internal drive component is installed in the installation channel, and the output end of the drive motor is connected to the internal drive component;

[0010] The rocker arm is rotatably mounted on the side tube. The rocker arm includes a driving part and a rotating part, with the driving part located in the mounting channel and the rotating part located at the top of the side tube.

[0011] The internal drive component is moved within the mounting channel by the drive motor, thereby causing the rocker arm to swing.

[0012] Furthermore, the internal drive components include a turbine, a lead screw, and a slider;

[0013] The lead screw is disposed within the mounting channel, and the extension direction of the lead screw is consistent with both the mounting channel and the side tube. A bearing is mounted on the side of the lead screw near the motor, and a bearing housing is installed within the mounting channel. The other side of the lead screw passes through the drive unit. The worm gear and the slider are both threadedly mounted in the middle of the lead screw, and the slider is disposed near the rocker arm. The output shaft of the drive motor extends into the mounting channel, and the output shaft is threaded and meshes with the worm gear, enabling the slider to move back and forth in the mounting channel, forming a linear drive and improving the operational stability of the structure.

[0014] Furthermore, guide blocks extending from the side tubes are provided on both sides of the slider. Guide grooves are provided on both sides of the width of the side tubes to accommodate the guide blocks as they move back and forth with the slider, thereby improving the stability of the slider during movement.

[0015] Furthermore, the slider is made of wear-resistant plastic, which has excellent wear resistance and improves the service life of this structure.

[0016] Furthermore, a cover plate is also installed on the side tube. The cover plate completely covers the guide groove, and a circuit board can be installed on the inner wall of the cover plate to hide the circuit board. At the same time, it can provide an interference-free space for the guide block.

[0017] Furthermore, a support sleeve is provided inside the mounting channel of the side tube on the extension side of the motor's output shaft. The support sleeve is used to limit the motor's output shaft and ensure that the motor's output shaft meshes with the turbine.

[0018] Furthermore, two top grooves communicating with the installation channel are opened at the top of the side tube, and a groove communicating with the top grooves is also opened on the top side of the side tube. A connecting shaft is installed on the groove, and the length direction of the connecting shaft is parallel to the width direction of the side tube. The driving part is fixedly installed in the middle of the bottom side of the connecting shaft, and the rotating part extends into the installation channel from the top groove and is fixedly installed on the top side of the connecting shaft away from the driving part. This avoids on-site welding of the rocker arm and saves assembly time. When the rotating part is used to connect the leg bed board, it is a leg rotating part; when the rotating part is used to connect the back bed board, it is a back rotating part.

[0019] Furthermore, the side tube is also provided with a through hole, the bearing seat is composed of two half bearing seats spliced ​​together, and a limit channel is provided through the bearing seat. One side of the limit rod is set in the cover plate, and the other side passes through the side tube and the limit channel, which avoids the situation where the bearing seat and the lead screw are not in the correct position, and improves the convenience and accuracy of installation.

[0020] Furthermore, a connecting plate is installed on both sides of the connecting shaft on the side tube. The connecting plate includes an L-shaped plate body that fits the top corner of the side tube. A gap is left between the two connecting plates to fully expose the top groove. An alignment hole is provided in the middle of the L-shaped plate body. The alignment hole is coaxially arranged with the connecting shaft. A receiving groove is also provided in the middle of the L-shaped plate body on the periphery of the alignment hole, which is used to realize the positioning and protection of the axial sides of the connecting shaft.

[0021] The advantages of this practical application are:

[0022] In this structure, the internal drive components are directly integrated and installed in the mounting channel inside the side tube. This allows the drive motor and internal drive components to be pre-installed on the bed frame before shipment, enabling it to be transported as a whole. When shipped, the rotating part is flattened, and the rocker arm rotating part is close to the side tube, significantly reducing the space occupied during transportation. This can save a lot of transportation costs during mass production and transportation. There is also no need to prepare a separate storage and transportation box to pack the drive components for separate transportation. When transferred to the customer, there is no need to weld and assemble the drive structure. Only the rotating part is needed to complete the subsequent assembly of the bed frame and bed board, making assembly simple and quick.

[0023] The side tube is also provided with a through hole. The bearing seat is composed of two half bearing seats spliced ​​together, and a limit channel is provided through the bearing seat. One side of the limit rod is set in the cover plate, and the other side passes through the side tube and the limit channel, which avoids the situation where the bearing seat and the lead screw are not in the correct position, and improves the convenience and accuracy of installation.

[0024] 3. The internal drive components include a turbine, a lead screw, and a slider, which, in conjunction with the motor output shaft, can form a linear drive to achieve stability in the up-and-down swing of the rocker arm lifting section.

[0025] 4. Guide blocks extending from the side tubes are provided on both sides of the slider. Guide grooves are provided on both sides of the width of the side tubes to accommodate the guide blocks as they move back and forth with the slider, thereby improving the stability of the slider during movement.

[0026] 5. The slider is made of wear-resistant plastic to prevent increased wear caused by relative friction between the slider and the metal side tube when the slider is made of metal, thus extending the service life of this structure.

[0027] 6. A cover plate is also installed on the side tube outside the guide groove. A circuit board can be installed on the inner wall of the cover plate to hide the circuit board and provide an interference-free space for the guide block.

[0028] 7. Inside the mounting channel of the side tube, on the extension side of the motor's output shaft, a support bushing is also installed. The support bushing is used to limit the motor's output shaft and ensure that the motor's output shaft meshes with the turbine. Attached Figure Description

[0029] Figure 1 This is a perspective view of the rocker arm on the side tube of this utility model in the raised position.

[0030] Figure 2 This is a perspective view of the rocker arm on the side tube of this utility model when it is in a flattened state.

[0031] Figure 3 For practical purposes Figure 1 A partial structural diagram.

[0032] Figure 4 For practical purposes Figure 3 A magnified view of the local structure.

[0033] Figure 5 This is a schematic diagram of the electric bed frame in the raised position.

[0034] Figure 6 This is a schematic diagram of the practical electric bed frame in a lying position. Detailed Implementation

[0035] To further illustrate the technical means and effects adopted by this utility model to achieve its intended practical purpose, the following detailed description of the specific implementation methods, structures, features and effects of this utility model, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0036] like Figure 5-6 The four-drive integrated electric bed frame shown includes a bed frame, a bed board and four drive structures 2.

[0037] The bed frame is horizontally arranged and includes two side tubes 1, two longitudinal tubes 5, and two support tubes. The two side tubes 1 and the two longitudinal tubes 5 form a rectangular frame structure. The length of the side tube 1 is not less than the length of the longitudinal tube 5. The interior of the side tube 1 is hollow to form a horizontal installation channel.

[0038] Bed legs are installed at the four corners of the bottom of the bed frame, and a bed board 6 is provided on the top of the bed frame. The bed board 6 includes a headboard 61, a backboard 62, a hipboard 63, a thighboard 64, and a calfboard 65, which are distributed from head to tail.

[0039] Two drive structures 2 are integrated on each side tube 1. In this embodiment, the side tube 1 is assembled from two square tube profiles. A drive structure 2 is integrated on each square tube profile. A support tube is fixedly installed between the two drive structures 2 on each side tube 1. In this embodiment, a buttock bed board 63 is installed on the support tube.

[0040] like Figure 1-4 As shown, each drive structure 2 includes a drive motor 21, an internal drive component 22, and a rocker arm 23 arranged in sequence, and the drive motor 21 and the internal drive component 22 are both integrated and mounted on the side tube 1.

[0041] The rocker arm 23 includes a rotating part 231, a connecting shaft 233, and a driving part 232, which are welded and fixed into an integrated structure at the top, middle, and bottom. This avoids on-site welding of the rocker arm 23 and saves assembly time. The rotating part 231, located near the foot of the bed, is a leg rotating part 11, used to connect and install the thigh bed board 64 and the lower leg bed board 65. The rotating part 232, located near the head of the bed, is a back rotating part 10, used to connect and install the head bed board 61 and the back bed board 62. The rocker arm 23 can be rotatably mounted on the square tube profile through the connecting shaft 233. The driving part 232 of the rocker arm 23 is located in the installation channel. A through groove 234 is also left in the center of the bottom of the driving part 232. The rotating part 231 is located at the top of the square tube profile, and the support tube is set at the same height as the rotating part 231 of the rocker arm 23 in the flat state.

[0042] The drive motor 21 is mounted on the square tube profile and located inside the bed frame.

[0043] The internal drive component 22 is installed in the installation channel. The output end of the drive motor 21 is connected to the internal drive component 22. The drive motor 21 drives the internal drive component 22 to move back and forth in the installation channel, thereby driving the drive part 232 to swing and rise and fall in the installation channel, and finally realizes the swing of the rotating part 231.

[0044] The top of the square tube profile has a top groove 12 that communicates with the installation channel. An arc-shaped groove 13 that communicates with the top groove 12 is also provided on the top side of the square tube profile. A connecting shaft 233 is installed on the arc-shaped groove 13. The length direction of the connecting shaft 233 is parallel to the width direction of the square tube profile. The driving part 232 is fixedly installed in the middle of the bottom side of the connecting shaft 233. The rotating part 231 extends from the top groove 12 into the installation channel and is fixedly installed on the top side of the connecting shaft 233 away from the driving part 232. The driving part 232 can drive the rotating part 231 to swing and rise. The extension direction of the rotating part 231 is set away from the slider 224.

[0045] The connecting shaft 233 includes a circular tube 2331. Both sides of the circular tube 2331 are provided with a bushing 2332, a plastic sleeve 2333 and a spot welding pin 2334 from the inside to the outside. The spot welding pin 2334 passes through the plastic sleeve 2333 and the bushing 2332 and extends into the inner wall of the circular tube 2331.

[0046] A connecting plate 9 is threadedly installed on both sides of the connecting shaft 233 on the square tube profile. The connecting plate 9 includes an L-shaped plate body that fits the top corner of the side tube. The top horizontal section of the L-shaped plate body is concave, so a gap is formed between the two connecting plates 9 that fully exposes the top groove 12. An alignment hole 91 is provided in the middle of the L-shaped plate body. The alignment hole 91 is coaxially arranged with the connecting shaft 233 and is used to accommodate the insertion of the welding pin 2334. A receiving groove 92 is also provided on the periphery of the alignment hole 91 in the middle of the L-shaped plate body, which is used to wrap the plastic sleeve 2333 and the bushing 2332 to achieve the positioning and protection of the axial sides of the connecting shaft 233.

[0047] The internal drive unit 22 includes a turbine 221, a lead screw 223, and a slider 224.

[0048] The lead screw 223 is horizontally arranged in the installation channel. The extension direction of the lead screw 223 is consistent with the installation channel and the square tube profile. A bearing is installed on the side of the lead screw 223 near the motor. A bearing seat 226 is installed in the installation channel. The bearing is located in the bearing seat 226. The other side of the lead screw 223 passes through the through groove 234. The worm gear 221 and the slider 224 are threadedly installed on the lead screw 223. The slider 224 is located near the rocker arm 23. The output shaft 222 of the drive motor 21 extends into the installation channel. The output shaft 222 is threaded and meshes with the worm gear 221, realizing the back-and-forth movement of the slider 224 in the installation channel, forming a linear drive and improving the operational stability of the structure.

[0049] Inside the installation channel of the square tube profile, a support sleeve 7 is also provided on the extension side of the output shaft 222 of the motor 21. The support sleeve 7 is used to limit the output shaft 222 and ensure the meshing of the output shaft 222 with the turbine 221.

[0050] The slider 224 is also provided with guide blocks 227 extending from square tube profiles on both sides. The square tube profiles are provided with guide grooves 3 on both sides of the width to accommodate the guide blocks 227 as they move back and forth with the slider 224, thereby improving the stability of the slider 224 during movement.

[0051] The slider 224 is made of wear-resistant plastic, such as nylon, to prevent increased wear caused by relative friction between the slider and the metal side tube when the slider is made of metal, thus extending the service life of this structure.

[0052] A cover plate 8 is also installed on the outside of the guide groove 3 on the square tube profile. The inner wall of the cover plate 8 can be used to install circuit boards, so as to hide the circuit boards and provide a space free from interference for the guide block 227.

[0053] Two sets of through holes are also provided on the square tube profile. The bearing seat 226 is composed of two half bearing seats spliced ​​together, and a limit channel is provided through the bearing seat 226. One side of the limit rod 4 is set inside the cover plate 8, and the other side passes through the square tube profile and the limit channel, which avoids the situation where the bearing seat 226 and the lead screw 223 are not inaccurate, and improves the convenience and accuracy of installation.

[0054] The working principle of this patent:

[0055] Once the structure is delivered to the customer, only the assembly connection of each bed board needs to be installed on the support tube and the rocker arm rotating part, making assembly simple and quick.

[0056] In this structure, the internal drive component 22 is directly installed in the internal installation channel of the square tube profile, so that the drive motor 21 and the internal drive component 22 can be integrated and set up before the bed frame is shipped. It can be transported with the bed frame as a whole, which greatly reduces the space occupied during transportation. In the process of mass production and transportation, a lot of transportation costs can be saved. There is no need to prepare a separate storage and transportation box to pack the drive component for separate transportation. In the process of mass production and transportation, a lot of transportation costs can be saved. When it is transferred to the customer, there is no need to weld the drive component. Only the rocker arm rotating part is needed to complete the subsequent assembly of the bed frame and the bed board.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Although this utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model without departing from the scope of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A four-wheel drive integrated electric bed frame, characterized in that: It includes a side tube and two drive structures mounted on the side tube. The drive structure includes a drive motor, an internal drive component, and a rocker arm arranged in sequence. The drive motor and internal drive components are both integrated and mounted on the side tube; The side tube is hollow inside to form an installation channel, the internal drive component is installed in the installation channel, and the output end of the drive motor is connected to the internal drive component; The rocker arm is rotatably mounted on the side tube. The rocker arm includes a driving part and a rotating part, with the driving part located in the mounting channel and the rotating part located at the top of the side tube. The internal drive component is moved within the mounting channel by the drive motor, thereby causing the rocker arm to swing.

2. The four-wheel drive integrated electric bed frame according to claim 1, characterized in that: The internal drive components include a turbine, a lead screw, and a slider; The lead screw is disposed within the mounting channel, and the extension direction of the lead screw is consistent with both the mounting channel and the side tube. A bearing is mounted on one side of the lead screw, and a bearing seat is installed within the mounting channel. The bearing is located within the bearing seat. The other side of the lead screw passes through the drive unit. The worm gear and the slider are both threadedly mounted in the middle of the lead screw, and the slider is disposed close to the rocker arm. The output shaft of the drive motor extends into the mounting channel, and the output shaft is threaded and meshes with the worm gear.

3. The four-wheel drive integrated electric bed frame according to claim 2, characterized in that: The slider is also provided with guide blocks extending from the side tube on both sides, and guide grooves are provided on both sides of the width of the side tube to accommodate the guide blocks moving back and forth with the slider.

4. The four-wheel drive integrated electric bed frame according to claim 2, characterized in that: The slider is made of wear-resistant plastic.

5. A four-wheel drive integrated electric bed frame according to claim 3, characterized in that: A cover plate is also installed on the side tube outside the guide groove.

6. A four-wheel drive integrated electric bed frame according to claim 2, characterized in that: A support sleeve is also provided on the side tube on the extension side of the output shaft of the motor.

7. A four-wheel drive integrated electric bed frame according to claim 1, characterized in that: The top of the side tube has two top grooves that communicate with the installation channel. A groove communicating with the top grooves is also provided on the top side of the side tube. A connecting shaft is installed on the groove. The length direction of the connecting shaft is parallel to the width direction of the side tube. The driving part is fixedly installed in the middle of the bottom side of the connecting shaft. The rotating part extends from the top groove into the installation channel and is fixedly installed on the top side of the connecting shaft away from the driving part.

8. A four-wheel drive integrated electric bed frame according to claim 5, characterized in that: The side tube is also provided with a through hole. The bearing seat is composed of two half bearing seats spliced ​​together, and a limit channel is provided through the bearing seat. One side of the limit rod is set in the cover plate, and the other side passes through the side tube and is set with the limit channel.

9. A four-wheel drive integrated electric bed frame according to claim 7, characterized in that: A connecting plate is installed on both sides of the connecting shaft on the side tube.

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