A nursing bed

Abstract

The present application provides a nursing bed, including an integrated driving device for motor lifting, the driving device includes a dual-drive motor and a lifting motor, the lifting motor is fixed on the dual-drive motor; the lifting motor includes a motor housing, a motor body, a turbine transmission disc and a main drive shaft; the motor body and the turbine transmission disc are fixed in the motor housing, the motor body is connected to the main drive shaft through the turbine transmission disc, and the two ends of the main drive shaft pass through the motor housing respectively, one end of which is used to connect with the head of the bed connecting rod, and the other end is used to connect with the foot of the bed connecting rod. Compared with the prior art, the present application provides a method of fixing the lifting motor on the dual-drive motor, so that the lifting horse fixation and the dual-drive motor are integrated: on the one hand, the integrated structure is conducive to packaging and transportation, and can reduce the probability of damage to the motor during transportation; on the other hand, the integrated structure simplifies the installation operation.

Description

Technical Field

[0001] The present application relates to the technical field of nursing beds, and in particular to a motor assembly for driving a nursing bed to rise and fall. Background Art

[0002] Nursing beds generally include two functions: lifting and deformation. The lifting motor drives the head and foot of the bed to rise and fall, and the dual motor drive motor drives the bed board to deform.

[0003] There are two main ways to place the motors on the market to achieve simultaneous lifting of the head and foot of the bed:

[0004] The first type is to place the lifting motor on the bed to achieve the simultaneous lifting function of the head and foot of the bed;

[0005] The second type is to place a lifting motor at the head and foot of the bed to achieve the simultaneous lifting function of the head and foot of the bed.

[0006] In the above two methods, the lifting motor and the dual-drive motor are independent. On the one hand, it is difficult to transport, not conducive to packaging, and easy to be damaged during transportation; on the other hand, the installation operation is complicated. Summary of the invention

[0007] In view of this, the present application provides an integrated driving device for lifting with a single motor, which solves the shortcomings of the current bed driving mechanism that is difficult to transport and has complex installation and operation.

[0008] In the first aspect, the present application provides an integrated drive device for single-motor lifting, comprising a dual-drive motor and a lifting motor, wherein the lifting motor is fixed on the dual-drive motor; the lifting motor comprises a motor housing, a motor body, a turbine transmission disk and a main drive shaft; the motor body and the turbine transmission disk are fixed in the motor housing, and the motor body is driven and connected to the main drive shaft through the turbine transmission disk, and both ends of the main drive shaft respectively pass through the motor housing, one end of which is used to connect to the head of the bed connecting rod, and the other end is used to connect to the foot of the bed connecting rod.

[0009] In the above technical solution, further, the motor housing includes a main housing, a sub-housing and a plurality of first connecting bolts, the main housing and the sub-housing are fixedly connected by the first connecting bolts, and the main housing and the sub-housing constitute a storage compartment for installing the motor body and the turbine transmission plate; the main housing and the sub-housing are respectively provided with opening structures, and the two ends of the main transmission shaft respectively pass through the opening structures.

[0010] In the above technical solution, further, both ends of the main transmission shaft are connected to the shaft sleeve through elastic pins, and the shaft sleeve is accommodated in the opening structure; one end of the head connecting rod and the foot connecting rod is connected to the elastic pin in the opening structure.

[0011] In the above technical solution, further, a sealing ring is provided in the opening structure.

[0012] In the above technical solution, further, a bolt hole is provided on the turbine transmission disc, and the tail end of the second connecting bolt passes through the motor housing and is connected to the bolt hole to achieve a fixed connection between the motor housing and the turbine transmission disc.

[0013] In the above technical solution, further, the bottom of the motor housing is fixed on the dual-drive motor by means of a lifting motor base, and the lifting motor and the dual-drive motor are arranged in a T shape.

[0014] In the above technical solution, further, a plurality of fixing ears are provided at the bottom of the motor housing, and a plurality of third connecting bolts pass through the fixing ears, the lifting motor base and the dual drive motor in sequence.

[0015] In the above technical solution, further, a handle is provided at each end of the top surface of the dual drive motor.

[0016] In the second aspect, the present application also provides a nursing bed, including a bed frame, a deformable bed board, a deformable transmission mechanism, a headboard lifting transmission mechanism, a footboard lifting transmission mechanism and the above-mentioned single-motor lifting integrated drive device; the dual drive motor is connected to the deformable bed board through the deformable transmission mechanism to drive the bed board to deform; one end of the main drive shaft is connected to the headboard connecting rod, and the headboard connecting rod is connected to the headboard lifting transmission mechanism to drive the headboard to rise and fall; the other end of the main drive shaft is connected to the footboard connecting rod, and the footboard connecting rod is connected to the footboard lifting transmission mechanism to drive the footboard to rise and fall.

[0017] In the above technical scheme, further, the bedside lifting transmission mechanism includes a sleeve located at the bedside, an inner tube installed in the sleeve and a connecting block fixed in the inner tube, and also includes a gear seat, a transmission screw, a transmission nut, a lifting platform, a traction rope and a plurality of guide wheels. The gear seat is installed at the bedside, the bedside connecting rod is connected to the gear seat, the gear seat is connected to the transmission screw, the transmission nut is adapted to be connected to the transmission screw, and the transmission nut is fixed on the lifting platform; one end of the traction rope is fixedly connected to the lifting platform, and the other end is fixedly connected to the connecting block after passing through a plurality of guide wheels.

[0018] Compared with the prior art, the integrated drive device for single-motor lifting provided in the present application fixes the lifting motor on the dual-drive motor, so that the lifting horse fixation and the dual-drive motor are integrated: on the one hand, the integrated structure is conducive to packaging and transportation, and can reduce the probability of damage to the motor during transportation; on the other hand, the integrated structure simplifies the installation operation, and the user only needs to install it once, which provides a better experience; the integrated structure can be fixed near the middle of the nursing bed, and the motor body is used to drive the main drive shaft to rotate. The two ends of the main drive shaft respectively drive the head connecting rod and the foot connecting rod to rotate, thereby driving the lifting and lowering of the head and foot of the bed, and the transmission relationship is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an integrated driving device for lifting with a single motor provided in one embodiment of the present application.

[0020] Figure 2 An exploded view of an integrated driving device for lifting with a single motor provided in one embodiment of the present application.

[0021] Figure 3 A schematic diagram of the three-dimensional structure of a single horse body provided in one embodiment of the present application.

[0022] Figure 4 A schematic diagram of the structure of a nursing bed in a lowered state provided by an embodiment of the present application.

[0023] Figure 5 A schematic diagram of the structure of a nursing bed in a raised state provided by an embodiment of the present application.

[0024] Figure 6 A structural schematic diagram of a bedside lifting transmission mechanism provided in one embodiment of the present application.

[0025] Reference numerals:

[0026] 1-integrated driving device for lifting with a single motor; 2-bed frame; 3-deformable bed board; 4-deformation transmission mechanism; 5-bedside lifting transmission mechanism; 6-bedside connecting rod; 7-bedside connecting rod; 51-sleeve; 52-inner tube; 53-connecting block; 54-gear seat; 55-transmission screw; 56-transmission nut; 57-lifting platform; 58-traction rope; 59-guide wheel; 11-dual drive motor; 12-lifting motor; 13-lifting motor base; 14-third connecting bolt; 15-handle; 121-motor housing; 122-motor body; 123-turbine transmission disc; 124-main transmission shaft; 125-elastic pin; 126-sleeve; 127-second connecting bolt; 1211-main housing; 1212-auxiliary housing; 1213-first connecting bolt; 1214-opening structure; 1215-sealing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] Figure 1 A schematic diagram of the three-dimensional structure of an integrated driving device for lifting with a single motor provided in one embodiment of the present application.

[0031] like Figure 1 As shown, the integrated driving device for single-motor lifting provided in the present application includes a dual-drive motor 11 and a lifting motor 12. The lifting motor 12 is fixed on the dual-drive motor 11, and the lifting motor 12 and the dual-drive motor 11 are arranged in a T shape.

[0032] Figure 2 An exploded view of an integrated driving device for lifting with a single motor provided in one embodiment of the present application; Figure 3 A schematic diagram of the three-dimensional structure of a single horse body provided in one embodiment of the present application.

[0033] like Figure 2 and Figure 3As shown, the lifting motor 12 includes a motor housing 121, a motor body 122, a turbine transmission disc 123 and a main drive shaft 124; the motor body 122 and the turbine transmission disc 123 are fixed in the motor housing 121, and the motor body 122 is driven and connected to the main drive shaft 124 through the turbine transmission disc 123. Both ends of the main drive shaft 124 pass through the motor housing 121 respectively, one end of which is used to connect with the head connecting rod 6, and the other end is used to connect with the foot connecting rod 7.

[0034] Specifically, the motor body 122 and the turbine transmission plate 123 are fixed in the motor housing 121 by the following method:

[0035] The turbine transmission disc 123 is provided with a bolt hole, and the tail end of the second connecting bolt 127 passes through the motor housing 121 and is connected to the bolt hole to achieve a fixed connection between the motor housing 121 and the turbine transmission disc 123. At the same time, the main transmission shaft 124 passes through the opening structure 1214, which can also play a certain fixing role.

[0036] Specifically, the lifting motor 12 is fixed to the dual drive motor 11 in the following manner:

[0037] The bottom of the motor housing 121 is fixed to the dual-drive motor 11 by means of a lifting motor base 13. Specifically, a plurality of fixing ears are provided at the bottom of the motor housing 121, and a plurality of third connecting bolts 14 pass through the fixing ears, the lifting motor base 13 and the dual-drive motor 11 in sequence.

[0038] See also Figure 2 The motor housing 121 includes a main housing 1211, a sub-housing 1212 and a plurality of first connecting bolts 1213. The main housing 1211 and the sub-housing 1212 are fixedly connected by the first connecting bolts 1213. The main housing 1211 and the sub-housing 1212 constitute a storage compartment for installing the motor body 122 and the turbine transmission disc 123. The main housing 1211 and the sub-housing 1212 are respectively provided with opening structures 1214, and the two ends of the main transmission shaft 124 respectively pass through the opening structures 1214.

[0039] Specifically, a sealing ring 1215 is disposed in the opening structure 1214 to protect components inside the motor housing 121 .

[0040] See also Figure 2 and Figure 3 The two ends of the main transmission shaft 124 are connected to the sleeve 126 through the elastic pin 125, and the sleeve 126 is accommodated in the opening structure 1214; one end of the head connecting rod 6 and the foot connecting rod 7 are connected to the elastic pin 125 in the opening structure 1214.

[0041] The integrated drive device for single-motor lifting provided in the present application fixes the lifting motor 12 on the dual-drive motor 11, so that the lifting horse fixation and the dual-drive motor 11 are integrated: on the one hand, the integrated structure is conducive to packaging and transportation, and can reduce the probability of damage to the motor during transportation; on the other hand, the integrated structure simplifies the installation operation, and the user only needs to install it once, which provides a better experience.

[0042] For further information, see Figure 1 A handle 15 is provided at each end of the top surface of the dual drive motor 11. After the handle 15 is provided, the transportation and installation of the drive device are more convenient.

[0043] The integrated structure can be fixed near the middle of the nursing bed, and the motor body 122 is used to drive the main transmission shaft 124 to rotate. The two ends of the main transmission shaft 124 respectively drive the head connecting rod 6 and the foot connecting rod 7 to rotate, thereby driving the lifting and lowering of the head and foot of the bed. The transmission relationship is simple and reliable.

[0044] Figure 4 A structural schematic diagram of a nursing bed in a lowered state provided by an embodiment of the present application; Figure 5 A schematic diagram of the structure of a nursing bed in a raised state provided by an embodiment of the present application.

[0045] like Figure 4 and Figure 5 As shown, the present application also provides a nursing bed, including a bed frame 2, a deformable bed board 3, a deformable transmission mechanism 4, a headboard lifting transmission mechanism 5, a footboard lifting transmission mechanism and the above-mentioned single-motor lifting integrated drive device 1; the single-motor lifting integrated drive device 1 is installed near the middle of the bed frame 2, and the dual drive motor 11 is connected to the deformable bed board 3 through the deformable transmission mechanism 4 to drive the bed board to deform; one end of the main transmission shaft 124 is connected to the headboard connecting rod 6, and the headboard connecting rod 6 is connected to the headboard lifting transmission mechanism 5 to drive the headboard to be lifted; the other end of the main transmission shaft 124 is connected to the footboard connecting rod 7, and the footboard connecting rod 7 is connected to the footboard lifting transmission mechanism to drive the footboard to be lifted.

[0046] The dual drive motor 11 is connected to the deformable bed board 3 through the deformation transmission mechanism 4 to drive the bed board to deform, including arching, flattening and other states. Since this technology is conventional and widely used in this field, it will not be repeated here. The following focuses on the lifting principle.

[0047] Figure 6 A structural schematic diagram of a bedside lifting transmission mechanism 5 provided in one embodiment of the present application.

[0048] like Figure 6As shown, the bedside lifting transmission mechanism 5 includes a sleeve 51 located at the bedside, an inner tube 52 installed in the sleeve 51 and a connecting block 53 fixed in the inner tube 52, and also includes a gear seat 54, a transmission screw 55, a transmission nut 56, a lifting platform 57, a traction rope 58 and a plurality of guide wheels 59. The gear seat 54 is installed at the bedside, the bedside connecting rod 6 is connected to the gear seat 54, the gear seat 54 is connected to the transmission screw 55, the transmission nut 56 is adapted to be connected to the transmission screw 55, and the transmission nut 56 is fixed on the lifting platform 57; one end of the traction rope 58 is fixedly connected to the lifting platform 57, and the other end is fixedly connected to the connecting block 53 after passing through a plurality of guide wheels 59.

[0049] The bed foot lifting transmission mechanism and the bed head lifting transmission mechanism 5 have the same structure and the same working principle, which will not be described in detail here.

[0050] The lifting working principle of the nursing bed is as follows:

[0051] The motor body 122 drives the main transmission shaft 124 to rotate in the first direction through the turbine transmission disk 123, and then drives the headrest connecting rod 6 to rotate. The headrest connecting rod 6 drives the transmission screw 55 to rotate around its own axis through the gear seat 54. The transmission nut 56 moves in the vertical direction as the transmission screw 55 rotates. At the same time, the lifting platform 57 moves with the transmission nut 56, pulling the traction rope 58. Under the action of the traction rope 58, the inner tube 52 extends out of the sleeve 51 to achieve the telescopic action.

[0052] The head and foot of the bed extend or descend simultaneously.

[0053] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0054] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0055] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0056] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features of the present invention.

[0057] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A nursing bed, characterized in that: It includes a bed frame, a deformable bed board, a deformation transmission mechanism, a bed head lifting transmission mechanism, a bed foot lifting transmission mechanism and an integrated driving device for single motor lifting; The integrated driving device for lifting a single motor comprises a dual-drive motor and a lifting motor, wherein the lifting motor is fixed on the dual-drive motor; the lifting motor comprises a motor housing, a motor body, a turbine transmission disc and a main transmission shaft; the motor body and the turbine transmission disc are fixed in the motor housing, the motor body is drivingly connected to the main transmission shaft through the turbine transmission disc, and both ends of the main transmission shaft respectively pass through the motor housing, one end of which is used to be connected to the head connecting rod, and the other end is used to be connected to the foot connecting rod; the motor housing comprises a main housing, a sub-housing and a plurality of first connecting bolts, the main housing and the sub-housing are fixedly connected by the first connecting bolts, and the main housing and the sub-housing constitute a storage bin for installing the motor body and the turbine transmission disc; the main housing and the sub-housing are respectively provided with opening structures, and the two ends of the main transmission shaft respectively pass through the opening structures; the turbine transmission disc is provided with a bolt hole, and the tail end of the second connecting bolt passes through the motor housing and is connected to the bolt hole, so as to realize the fixed connection between the motor housing and the turbine transmission disc; The dual-drive motor is connected to the deformable bed board through a deformation transmission mechanism; one end of the main transmission shaft is connected to the headboard connecting rod, and the headboard connecting rod is connected to the headboard lifting transmission mechanism to drive the headboard to rise and fall; the other end of the main transmission shaft is connected to the tailboard connecting rod, and the tailboard connecting rod is connected to the tailboard lifting transmission mechanism to drive the tailboard to rise and fall; the headboard lifting transmission mechanism includes a sleeve located at the headboard, an inner tube installed in the sleeve, and a connecting block fixed in the inner tube, and also includes a gear seat, a transmission screw, a transmission nut, a lifting platform, a traction rope and a number of guide wheels, the gear seat is installed at the headboard, the headboard connecting rod is connected to the gear seat, the gear seat is connected to the transmission screw, the transmission nut is adaptively connected to the transmission screw, and the transmission nut is fixed on the lifting platform; one end of the traction rope is fixedly connected to the lifting platform, and the other end is fixedly connected to the connecting block after passing through a number of guide wheels.

2. A nursing bed according to claim 1, characterized in that: The two ends of the main transmission shaft are connected to the shaft sleeve through elastic pins, and the shaft sleeve is accommodated in the opening structure; one end of the head connecting rod and the foot connecting rod is connected to the elastic pin in the opening structure.

3. A nursing bed according to claim 1 or 2, characterized in that: A sealing ring is arranged in the opening structure.

4. A nursing bed according to claim 1, characterized in that: The bottom of the motor housing is fixed on the dual-drive motor by means of a lifting motor base, and the lifting motor and the dual-drive motor are arranged in a T shape.

5. A nursing bed according to claim 4, characterized in that: The bottom of the motor housing is provided with a plurality of fixing ears, and a plurality of third connecting bolts pass through the fixing ears, the lifting motor base and the dual driving motor in sequence.

6. The nursing bed according to claim 1, characterized in that: Two ends of the top surface of the dual drive motor are respectively provided with a handle.

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