Lifting mechanism of an auxiliary device and electric bed using the same

Abstract

The application relates to a lifting mechanism and an electric bed, in particular to a lifting mechanism of an auxiliary device and an electric bed using the same. Not only in the non-use state, the hiding property of the device is improved, and the overall aesthetic feeling of the electric bed product with the matched device is improved; in the use scene of the electric bed, the matched device can be perfectly compatible with the mattress and the bed plate. The structure can be automatically unfolded or stored through remote instructions, remote control or built-in programs, so that the operation complexity is reduced. The lifting mechanism comprises a first base, a first lifting device, a second base, a second lifting device and a device connecting piece. The first lifting device is vertically arranged on the first base. The second base is movably connected with the first lifting device. The first lifting device can make the second base reciprocate along the vertical direction.

Description

TECHNICAL FIELD

[0001] The present application relates to a lifting mechanism and an electric bed, in particular to a lifting mechanism of an auxiliary device and an electric bed using the same. BACKGROUND

[0002] With the increasing popularity of intelligent devices of electric beds, various auxiliary devices are currently matched with electric beds for use. However, due to different lifting states of the electric bed itself, there are some problems in the installation compatibility of the auxiliary device and the electric bed. In addition, if the device is rigidly connected to the bed plate and the mattress, when the electric bed is lifted, the extrusion of the bed plate on the mattress, and the different materials of the bed plate and the mattress will cause the mattress to displace towards the head and foot ends, generating a large thrust to damage the device installed on the bed plate. Moreover, the device exposed on one side will also affect the overall aesthetic level of the electric bed. SUMMARY

[0003] The purpose of the present application is to solve the above problems, and provide a lifting mechanism of an auxiliary device, which not only improves the concealment of the device in a non-use state, but also improves the overall aesthetic level of the electric bed product with the matching device. In the use scenario of the electric bed, the matching device is perfectly compatible with the mattress and the bed plate. The mechanism can be automatically deployed or stored through remote instructions, remote control, or built-in programs, reducing the complexity of operation.

[0004] To achieve the above purpose, the technical solution adopted by the present application is as follows:

[0005] A lifting mechanism of an auxiliary device, comprising a first base, a first lifting device, a second base, a second pushing device, and a device connecting piece.

[0006] The first lifting device is vertically arranged on the first base.

[0007] The second base is movably connected with the first lifting device.

[0008] The first lifting device can make the second base reciprocate along the vertical direction.

[0009] The second pushing device is installed above the second base.

[0010] The device connecting piece is movably connected with the second pushing device.

[0011] The second pushing device can drive the device connecting piece to reciprocate in a first direction.

[0012] The first direction intersects with the movement direction of the first lifting device.

[0013] Further, the first base has a clamping function.

[0014] Further, the first base has an upper clamping plate, a lower clamping plate and an intermediate plate; the upper clamping plate, the lower clamping plate and the intermediate plate constitute a N-shaped clamp with the opening direction forward.

[0015] Further, the upper clamping plate and the lower clamping plate are provided with through holes for placing the first lifting device; the first push rod motor is fixedly connected with the first base through the through holes.

[0016] Further, the first lifting device comprises a first driving motor and a first threaded rod connected above the first driving motor.

[0017] Further, the second base is provided with a threaded hole matched with the first threaded rod; the second base is connected with the first threaded rod through the threaded hole; when the first driving motor operates, the first threaded rod rotates clockwise or counterclockwise to drive the second base to move up and down along the first threaded rod.

[0018] Further, the second advancing device comprises a second driving motor, a gear mechanism device, a second threaded rod and a second connecting piece.

[0019] The second driving motor is vertically placed above the second base.

[0020] The gear mechanism device is connected above the second driving motor; the second driving motor can drive the gear mechanism device to operate internally.

[0021] The second threaded rod is horizontally arranged in the gear mechanism device; the second threaded rod is divided into two parts with mirror image threads at the middle point.

[0022] The second connecting piece is arranged at both ends of the second threaded rod; under the driving of the gear mechanism device, the second connecting piece can reciprocate along the axial direction of the second threaded rod.

[0023] Further, the equipment connecting piece comprises two push rods arranged symmetrically and an equipment base; one end of the second connecting piece is hingedly connected with one end of the push rod through a first hinge joint and a second hinge joint; the other end of the two push rods is respectively hingedly connected with the equipment base through a third hinge joint and a fourth hinge joint.

[0024] Further, the second connecting piece comprises a first horizontal part, a second vertical part and a third horizontal part; the first horizontal part, the second vertical part and the third horizontal part are integrally formed; the second vertical part is provided with a second threaded hole for passing the second threaded rod; the thread of the second threaded hole is matched with the second threaded rod; the second connecting piece can reciprocate along the second threaded rod.

[0025] Further, a resistance part is arranged on one side of the first horizontal part, which is opposite to the position of the equipment base; the resistance part is used to limit the backward movement of the push rod.

[0026] Further, a pair of reinforcing parts is arranged between the first horizontal part and the second vertical part, and between the second vertical part and the third horizontal part; the distance between the two parts of each pair of reinforcing parts is greater than the diameter of the second threaded hole.

[0027] Further, when the push rod is in the initial state, i.e. the lifting mechanism is not powered on, the sum of the lengths of the two push rods is less than the length of the second threaded rod.

[0028] Further, the gear mechanism device comprises a gear, a transmission rod and a mechanism shell; the transmission rod is connected to the upper side of the second driving motor, and the first tooth part is attached to the transmission rod; the gear is connected to one side of the transmission rod, and the second tooth part matched with the first tooth part is attached to the outer ring of the gear; the through hole for the second threaded rod to pass through is arranged in the middle of the gear; and the mechanism shell is wrapped outside the gear and the transmission rod.

[0029] Further, the second push device is wrapped with a second shielding shell; the second shielding shell is divided into a contraction shell and a rigid shell from top to bottom; the contraction shell is wrapped outside the push rod and can be elongated in cooperation with the forward movement of the push rod; and the rigid shell is wrapped outside the gear mechanism device.

[0030] Further, the first threaded rod is wrapped with a first shielding shell, and the first shielding shell is provided with a cavity in the front part for the upward and downward movement of the second base.

[0031] Further, the upper clamping plate is vertically provided with a baffle part near the front end; the baffle part is provided with two groups of rectangular holes with the same height.

[0032] Further, the lower clamping plate is provided with slide rail grooves on both sides; the slide rail grooves are matched with slide rail wheels with appropriate sizes; and the slide rail wheels are fixedly connected with corresponding connecting plates.

[0033] The utility model provides an electric bed, including bed board, the mattress that places in the bed board upper, the drive arrangement for driving the bed board turns over, still include the lifting mechanism of any one of above auxiliary equipment, the mattress is opened with first recess in the head, first recess includes first surface, second surface, third surface and forms a U shape, the width of second surface is greater than the width of the baffle piece, in order to make the baffle piece close when the second surface, after using the binding belt passes through the rectangular hole, the binding belt can have enough space and the second surface close, the length of first surface and third surface is greater than the length of lifting mechanism, when the mattress lays or turns over, the rear end of lifting mechanism all can not protrude from the mattress.

[0034] Further, the bed board head is equipped with second recess, the second recess corresponds with the position of first recess and the area size is same, the second recess can match with first base, the connecting plate is used for fixedly connecting lifting mechanism, can make lifting mechanism reciprocating motion along the slide rail groove.

[0035] Further, the sum of the thickness of bed board and mattress is greater than the height of lifting mechanism when not working, makes the mattress keep the appearance of flat when lifting mechanism is not working, the sum of the thickness of bed board and mattress is less than the height of lifting mechanism when first lifting device rises to the highest point.

[0036] The beneficial effects of the scheme are:

[0037] The lifting mechanism is embedded in the mattress, and the mechanism is fixed in the recess cutout of the mattress by the elastic binding belt, and the lifting mechanism always maintains the state of being perpendicular to the mattress during use by clamping and connecting through the base and the bed board, can be compatible with the bed board and the mattress of the electric bed, and the appearance is beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0038] The utility model will be further explained in detail in connection with the drawings and specific embodiments:

[0039] Figure 1 It is the three-dimensional structure diagram of the lifting mechanism in the embodiment Figure 1 ;

[0040] Figure 2 It is the three-dimensional structure diagram of the lifting mechanism in the embodiment Figure 2 ;

[0041] Figure 3 It is the three-dimensional structure diagram of the lifting mechanism in the embodiment Figure 3 (Raising state)

[0042] Figure 4 It is the three-dimensional structure diagram of the lifting mechanism in the embodiment Figure 4 (Unraising state)

[0043] Figure 5 isometric view of the lifting mechanism in the embodiment;

[0044] Figure 6 isometric view of the bed board in the embodiment;

[0045] Figure 7 isometric view of the bed board combined with the lifting mechanism in the embodiment;

[0046] Figure 8 isometric view of the mattress, bed board and lifting mechanism combined in the embodiment Figure 1 ;

[0047] Figure 9 isometric view of the mattress, bed board and lifting mechanism combined in the embodiment Figure 2 ;

[0048] Figure 10 isometric view of the mattress, bed board and lifting mechanism combined in the embodiment Figure 3 ;

[0049] Figure 11 isometric view of the mattress, bed board and lifting mechanism combined in the embodiment Figure 4 ;

[0050] Figure 12 isometric view of the mattress, bed board and lifting mechanism combined in the embodiment Figure 5 ;

[0051] Figure 13 isometric view of the second propulsion device and the equipment connector in the embodiment;

[0052] Figure 14 isometric view of the gear mechanism device in the embodiment;

[0053] Figure 15 isometric view of the second propulsion device in operation in the embodiment;

[0054] In the figure: 1. First base; 11. Upper clamping plate; 12. Lower clamping plate; 121. Slide rail groove; 122. Slide rail wheel; 123. Connecting plate; 13. Middle plate; 14. Through hole; 2. First lifting device; 21. First driving motor; 22. First threaded rod; 3. Second base; 31. First threaded hole; 4. Second pushing device; 41. Second driving motor; 42. Gear mechanism device; 421. Gear; 422. Transmission rod; 423. Mechanism housing; 43. Second threaded rod; 44. Second connecting piece; 441. First horizontal part; 4411. Blocking part; 442. Second vertical part; 443. Third horizontal part; 444. Second threaded hole; 445. First hinging point; 446. Second hinging point; 5. Equipment connecting piece; 51. Pushing rod; 52. Equipment base; 53. Third hinging point; 54. Fourth hinging point; 6. Second shielding housing; 61. Contracting housing; 62. Rigid housing; 7. First shielding housing; 8. Baffle piece; 81. Binding belt; 82. Rectangular hole; 9. Mattress; 91. First groove; 911. First face; 912. Second face; 913. Third face; 10. Bed plate; 101. Second groove;

[0055] OA. Vertical direction; OB. First direction; OC. Bed head; OD. Bed tail. DETAILED DESCRIPTION

[0056] The technical solutions of the present application will be further described in detail below in combination with specific embodiments.

[0057] The embodiments of the present patent are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present patent, and cannot be understood as a limitation of the present patent.

[0058] Wherein "front", "forward" indicated below are the directions pointing from left to right in the figure; "up" is the direction pointing from bottom to top in the figure.

[0059] As Figures 1 to 3As shown, the present application provides a lifting mechanism of an auxiliary device, comprising a first base 1, a first lifting device 2, a second base 3, a second propulsion device 4, a device connecting piece 5; the first base 1 is vertically provided with the first lifting device 2; the second base 3 is movably connected with the first lifting device 2; the first lifting device 2 can make the second base 3 reciprocate along the vertical direction OA; the second propulsion device 4 is installed above the second base 3; the device connecting piece 5 is movably connected with the second propulsion device 4; the second propulsion device 4 can drive the device connecting piece 5 to reciprocate in the first direction OB; the first direction OB intersects with the movement direction of the first lifting device 2; in this embodiment, the first direction OB is the direction from the head of the bed to the tail of the bed; the lifting mechanism of the auxiliary device is a lifting and translating mechanism that can match the use of the electric bed and hide the auxiliary device in the mattress 9, which is mainly used to lift and translate the auxiliary device matched with the electric bed to the working position, and through the limiting slide rail wheel and the connecting plate, the main body of the lifting mechanism and the bed plate 10 are connected, which can match the mattress of different materials of the electric bed, prevent the lifting mechanism and the mattress from interfering with each other when the electric bed is operated. After the lifting mechanism is connected to the power supply, the second propulsion device and the device connecting piece 5 can be lifted to the working position by the first lifting device 2 through remote instructions, remote control, or built-in programs; then, the device connecting piece 5 is pushed forward to a position more suitable for the user by the second propulsion device 4; by fixing the rear part of the auxiliary device to the device base 52, the auxiliary device and the device base 52 can be connected by using a compound with adhesive properties, thereby achieving effective fixation of the auxiliary device; and the first shielding shell and the second shielding shell are wrapped outside to prevent dust from entering the lifting mechanism and make the lifting mechanism more beautiful.

[0060] As shown in Figure 6 , 7 Further, the first base 1 has a clamping function. The first base 1 mainly realizes the connection with the bed plate 10 of the electric bed; the corresponding part of the bed plate 10 is provided with a groove matched in size with the lifting mechanism, and the first base 1 is clamped and connected with the groove, so that the entire lifting mechanism can be embedded in the bed plate 10, not only maintaining the flatness and beauty of the entire bed plate 10, but also making the connection of the lifting mechanism with the electric bed convenient and efficient, and improving the utilization rate.

[0061] As shown in Figure 2As shown, further, the first base 1 has an upper clamping plate 11, a lower clamping plate 12 and an intermediate plate 13; the upper clamping plate 11, the lower clamping plate 12 and the intermediate plate 13 constitute a N-shaped clamp with the opening direction forward. The opening faces the bed plate 10, the height of the opening matches the thickness of the bed plate 10, so that the first base 1 can be completely inserted into the second groove 101 of the bed plate 10, and the width of the upper clamping plate 11 and the lower clamping plate 12 also matches the width of the second groove 101, so that the flatness of the bed plate 10 around can be maintained after the lifting mechanism is connected to the bed plate 10, and the appearance of the entire bed plate 10 is maintained.

[0062] Further, a through hole for placing the first lifting device 2 is formed on the upper clamping plate 11 and the lower clamping plate 12; the first lifting device 2 is fixedly connected to the first base 1 through the through hole. The first driving motor 21 can be embedded in the through hole, and the bottom surface of the first lifting device can be lower than the bottom of the lower clamping plate; thereby effectively reducing the height of the entire lifting mechanism in the unused state; so that it can be matched with more models of mattress 9, and the lifting mechanism will not protrude outside the mattress 9, thereby making the appearance of the entire electric bed more flat and more beautiful.

[0063] As shown in Figure 1 , 2 As shown in

[0064] Further, a first threaded hole 31 matched with the first threaded rod 22 is formed on the second base 3; the second base 3 is connected to the first threaded rod 22 through the first threaded hole 31; when the first driving motor 21 operates, the first threaded rod 22 rotates clockwise or counterclockwise to drive the second base 3 to move up and down along the first threaded rod 22. The inner wall of the first threaded hole 31 can be flat or threaded, as long as it can be engaged with the threads of the first threaded rod 22 to drive the second base 3 to reciprocate in the vertical direction OA.

[0065] As shown in Figure 13As shown, further, the second propulsion device 4 includes a second drive motor 41, a gear mechanism device 42, a second threaded rod 43, and a second connecting piece 44. The second drive motor 41 is vertically placed above the second base 3. The gear mechanism device 42 is connected above the second drive motor 41. The second drive motor 41 can drive the gear mechanism device 42 to operate. The second threaded rod 43 is horizontally arranged in the gear mechanism device 42. The second threaded rod 43 is divided into two parts by a middle point, and each part is provided with a mirror image thread. In this embodiment, two pairs of second connecting pieces 44 are arranged. The second connecting pieces 44 are arranged on both sides of the second threaded rod 43. The second connecting pieces 44 are vertically placed. Under the drive of the gear mechanism device 42, the second connecting pieces 44 can reciprocate along the axial direction of the second threaded rod 43. The specific movement is shown in the following figure. Figure 15 As shown, when the second connecting pieces 44 move towards each other along the axial direction, the equipment connecting piece 5 moves forward under the drive of the second connecting pieces 44, thereby moving the auxiliary equipment closer to the user and improving the user experience. When the mechanism is not needed, the second connecting pieces 44 move in opposite directions along the axial direction of the second threaded rod 43 under the control of the user, and return to the initial position.

[0066] The equipment connecting piece 5 includes two push rods 51 and an equipment base 52. The second connecting piece 44 is connected to one end of the push rod 51 through a first hinge point 445 and a second hinge point 446. The other end of the push rod 51 is connected to the equipment base 52 through a third hinge point 53 and a fourth hinge point 54. The push rod 51 is connected to the second connecting piece 44 and the equipment base 52 through the hinge points, so that the push rod 51 can move. As shown in the following figure, Figure 15 As shown, the push rod 51 moves in a scissors-like manner, and moves forward or backward. The forward movement of the equipment base 52 can be easily and quickly achieved, and the stability of the lifting mechanism is improved.

[0067] Further, the second connecting piece 44 comprises a first horizontal part 441, a second vertical part 442, and a third horizontal part 443; the first horizontal part 441, the second vertical part 442, and the third horizontal part 443 are integrally formed to form a N-shaped structure, and two second connecting pieces 44 are placed with their openings facing each other; a second threaded hole 444 is formed in the second vertical part 442 and is used for the second threaded rod 43 to pass through; the second threaded hole 444 is matched with the second threaded rod 43; the inner wall of the second threaded hole 444 can be flat or threaded, and the second connecting piece 44 can reciprocate along the axial direction of the second threaded rod 43 by the engagement between the inner wall of the second threaded hole 444 and the threads on the second threaded rod 43. The second connecting piece 44 is in the shape of N, which can not only effectively horizontally articulate the push rod 51, but also movably connect with the second threaded rod 43, and plays a role of connecting the upper and lower parts in the whole pushing device, thereby providing a stable pushing effect for the whole mechanism.

[0068] Further, as shown in Figure 13 the first horizontal part 441 is provided with a blocking part 4411 on one side, which is opposite to the position of the device base 52; the blocking part 4411 is used to limit the backward movement of the push rod 51; as the second connecting piece 44 moves towards the other, the blocking part 4411 blocks the position where the push rod 51 can move backward; under the action of the blocking part 4411, the push rod 51 can only move inward and forward; the blocking part 4411 can make the auxiliary device closer to the user more efficiently, thereby enhancing the user experience.

[0069] Further, an angle is formed between the first horizontal part 441 and the second vertical part 442, and between the second vertical part 442 and the third horizontal part 443, and a pair of reinforcing members is arranged at each angle; the distance between the two parts of each pair of reinforcing members is greater than the diameter of the second threaded hole 444. The reinforcing members can effectively prevent the second connecting piece 44 from deforming or being damaged during operation; the reinforcing member arranged below can better limit the position when the second threaded rod 43 is installed into the second connecting piece 44 on one side, and pass through the gear mechanism device 42 straightly to connect the second connecting piece 43 on the other side, thereby facilitating installation and preventing the second threaded rod 43 from tilting to one side.

[0070] Further, as shown in Figure 13 the push rod 51 is in an initial state, i.e., the lifting mechanism is not powered on, and the total length of the two push rods 51 is less than the length of the second threaded rod 43. After the push rod 51 is restored to the original position, the second connecting piece 44 will not be removed from the second threaded rod 43, thereby making the second pushing device 4 work more stably.

[0071] Furthermore, such as Figure 14 As shown, the gear mechanism 42 includes a gear 421, a transmission rod 422, and a mechanism housing 423. The transmission rod 422 is connected above the second drive motor 41, and a first tooth is attached to the transmission rod 422. The gear 421 is connected to one side of the transmission rod 422, and a second tooth matching the first tooth is attached to the outer ring of the gear 421. A through hole is provided in the middle of the gear 421 for the second threaded rod 43 to pass through. The mechanism housing 423 covers the outside of the gear 421 and the transmission rod 422, and is used to fix the positional relationship between the gear 421 and the transmission rod 422 to ensure the transmission of power. When the second drive motor 41 is in forward orientation, the forward rotation of the transmission rod 422 drives the gear 421 to rotate in the forward direction, causing the second threaded rod 43 located at the center of the gear 421 to rotate in the forward direction. This causes the second connecting piece 44 on the second threaded rod 43 to retract inward, moving the auxiliary equipment forward. When the second drive motor 41 is in reverse orientation, the reverse rotation of the transmission rod 422 drives the gear 421 to rotate in the reverse direction, causing the second threaded rod 43 located at the center of the gear 421 to rotate in the reverse direction. This causes the second connecting piece 44 on the second threaded rod 43 to open outward, moving the auxiliary equipment back. The gear 421 has a simple structure and low power consumption, making it well-suited for use in lifting mechanisms to improve their working efficiency.

[0072] Furthermore, the second propulsion device 4 is covered by a second shielding shell 6; the second shielding shell 6 is divided into a retractable shell 61 and a rigid shell 62. The retractable shell 61 covers the outside of the push rod 51 and can extend in conjunction with the push rod 51 moving forward; the rigid shell 62 covers the outside of the gear mechanism device 42. In this embodiment, the retractable shell 61 uses an accordion-like structure, which can cover the equipment connector 5 and auxiliary equipment whether the electric bed is running or not, making the lifting mechanism more aesthetically pleasing and effectively preventing damage to internal components.

[0073] Furthermore, the first threaded rod 22 is fitted with a first shielding shell 7, and the front of the first shielding shell 7 has a cavity to accommodate the vertical movement of the second base 3. The first threaded rod 22 drives the second base 3 to reciprocate in the vertical direction OA; the front cavity of the first shielding shell 7 can act as a limiting function, allowing the second base 3 to reciprocate along a straight line without requiring rotational reciprocating motion; this not only effectively increases the lifting efficiency but also prevents interference with the groove of the installed mattress 9.

[0074] Further, the upper clamping plate 11 is vertically provided with a baffle piece 8 near the front end; the baffle piece 8 is provided with two rectangular holes 82 of the same height. Figures 1 to 4 As shown in 8, 9, after the lifting mechanism is connected with the bed plate 10, the baffle piece 8 can be just in contact with the edge of the mattress 9, and then the double binding belts 81 outside the baffle are connected with the edge of the mattress 9 through the rectangular holes 82 and the binding belts 81 with adhesion; the double binding belts 81 can well make the whole mechanism adhere to the mattress 9, and when the mattress 9 is lifted, the lifting mechanism can also keep vertical relationship with the mattress 9; so that the auxiliary equipment operates more stably and efficiently.

[0075] Further, the lower clamping plate 12 is provided with slide rail grooves 121 on both sides; and is matched with slide rail wheels 122 of the same size as the slide rail grooves 121; the slide rail wheels 122 are provided with fixedly connected connecting plates 123. Figure 4 , 5 As shown in 7, 9, 10, the slide rail grooves 121, the slide rail wheels 122, and the connecting plates 123 connected with the bed plate 10; because the materials of the bed plate 10 and the mattress 9 are different, the bending angle and amplitude when they are lifted will also be different; as shown in Figure 10 , 11 In this embodiment, when the electric bed is lifted, the edge of the mattress 9 after bending will protrude from the edge of the bed plate 10 after bending in the bed head OC area, causing contact with the lifting mechanism; when the contact occurs, the sliding connection of the slide rail grooves 121 and the slide rail wheels 122 can effectively prevent the rigid contact of the lifting mechanism with the mattress 9; and can move the corresponding distance according to the contact of the mattress 9, adapt to the movement of the mattress 9 in height, prevent the damage of the lifting mechanism, and also make the auxiliary equipment closer to the user, improve the working efficiency of the auxiliary equipment.

[0076] Further, an electric bed comprises a bed board 10, a mattress 9 placed above the bed board 10, a driving device for driving the bed board 10 to overturn, and the lifting mechanism of any of the auxiliary devices, the mattress 9 is provided with a first recess 91 at the head; the first recess 91 comprises a first face 911, a second face 912 and a third face 913, and forms a U-shaped structure; the width of the second face 912 is greater than the width of the baffle piece 8, so that when the baffle piece 8 is tightly attached to the second face 912, the binding belt 81 has enough space to be tightly attached to the second face 912 after passing through the rectangular hole 82; when the electric bed overturns and rises, the lifting mechanism can also maintain a good angle with the mattress 9. The length of the first face 911 and the third face 913 is greater than the length of the lifting mechanism, so that the rear end of the lifting mechanism does not protrude from the mattress 9 when the mattress 9 is placed flat or overturned. The first recess 91 not only makes the appearance of the entire electric bed flat and beautiful, but also better fits the user and improves the user's experience.

[0077] Further, as shown in Figure 6 、 7 , the bed board 10 is provided with a second recess 101 at the head, the position of the second recess 101 corresponds to that of the first recess 91 and the area is the same; the second recess 101 can match the first base 1, and the connecting plate 123 is used to fixedly connect the lifting mechanism, so that the lifting mechanism can reciprocate along the sliding rail groove 121. The second recess 101 cooperates with the first recess 91, and in combination, the lifting mechanism can be well matched with the electric bed, so that the appearance of the electric bed is better.

[0078] Further, as shown in Figure 8 , the sum of the thicknesses of the bed board 10 and the mattress 9 is greater than the height of the lifting mechanism when it is not working, so that the mattress 9 maintains a flat appearance when the lifting mechanism is not working; the sum of the thicknesses of the bed board 10 and the mattress 9 is less than the height of the lifting mechanism when the first lifting device 2 rises to the highest point.

[0079] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An elevating mechanism of an auxiliary device, characterized by comprising: The first base, the first lifting device, the second base, the second pushing device, and the equipment connecting piece are provided. The first lifting device is vertically arranged on the first base. The second base is movably connected with the first lifting device. The first lifting device can make the second base reciprocate along the vertical direction. The second pushing device is installed above the second base. The equipment connecting piece is movably connected with the second pushing device. The second pushing device can drive the equipment connecting piece to reciprocate in the first direction. The first direction intersects with the moving direction of the first lifting device. The second pushing device comprises a second driving motor, a gear mechanism device, a second threaded rod, and a second connecting piece. The second driving motor is vertically arranged above the second base. The gear mechanism device is connected above the second driving motor. The second driving motor can drive the gear mechanism device to operate. The second threaded rod is horizontally arranged in the gear mechanism device. The second threaded rod is divided into two parts with mirror image threads. The second connecting piece is arranged at the two ends of the second threaded rod.

2. The lift mechanism of a secondary equipment according to claim 1, characterized in that, The second connecting piece can reciprocate along the axial direction of the second threaded rod under the driving of the gear mechanism device.

3. A lifting mechanism for an auxiliary device according to claim 2, wherein The equipment connecting piece comprises two push rods and an equipment base.

4. An elevating mechanism for an auxiliary device according to claim 3, wherein The second connecting piece is movably connected with the push rods through the first and second hinge joints.

5. An elevating mechanism for an auxiliary device according to claim 4, wherein The other ends of the push rods are movably connected with the equipment base through the third and fourth hinge joints.

6. A lifting mechanism for an auxiliary device according to claim 5, wherein The second connecting piece comprises a first horizontal part, a second vertical part, and a third horizontal part.

7. The lift mechanism of a secondary unit according to claim 1, wherein The second threaded hole is arranged on the second vertical part. The threads of the second threaded hole match with the second threaded rod. The first base has clamping function. The first base comprises an upper clamping plate, a lower clamping plate, and an intermediate plate. The upper clamping plate, the lower clamping plate, and the intermediate plate form a V-shaped clamp with the opening direction forward. The first lifting device is movably connected with the first base through the through hole. The first lifting device comprises a first driving motor and a first threaded rod connected above the first driving motor. The second base is movably connected with the first threaded rod through the first threaded hole. When the first driving motor operates, the first threaded rod rotates clockwise or counterclockwise, thereby driving the second base to move up and down along the first threaded rod. A resisting part is arranged on one side of the first horizontal part. The resisting part is used to limit the backward movement of the push rod.

8. A lifting mechanism for an auxiliary device according to claim 7, characterised in that, The first horizontal part and the second vertical part, the second vertical part and the third horizontal part are respectively provided with a pair of reinforcing members at the included angle; the distance between the two parts of each pair of reinforcing members is greater than the diameter of the second threaded hole.

9. The lift mechanism of a secondary unit according to claim 7, wherein, When the push rod is in the initial state, i.e. the lifting mechanism is not powered, the sum of the lengths of the two push rods is less than the length of the second threaded rod.

10. The lift mechanism of a secondary equipment according to claim 1, characterized in that, The gear mechanism device comprises a gear, a transmission rod and a mechanism shell; the transmission rod is connected to the top of the second driving motor, and the first tooth part is attached to the transmission rod; the gear is connected to one side of the transmission rod, and the second tooth part matched with the first tooth part is attached to the outer ring of the gear; the through hole for the second threaded rod to pass through is formed in the middle of the gear; and the mechanism shell covers the outer sides of the gear and the transmission rod.

11. The lift mechanism of a secondary unit according to claim 1, wherein, The outer side of the second advancing device is covered with a second shielding shell; the second shielding shell is divided into a contraction shell and a rigid shell from top to bottom, the contraction shell covers the outer side of the push rod and can be elongated in cooperation with the forward movement of the push rod; and the rigid shell covers the outer side of the gear mechanism device.

12. The lift mechanism of a secondary unit according to claim 5, wherein, The first threaded rod is provided with a first shielding shell, and the first shielding shell is provided with a cavity in the front part for the up-down movement of the second base.

13. The lift mechanism of a secondary unit according to claim 3, wherein, The upper clamping plate is vertically provided with a baffle part near the front end; the baffle part is provided with two groups of rectangular holes with the same height.

14. The lift mechanism of a secondary unit according to claim 3, wherein, The lower clamping plate is provided with slide rail grooves on both sides; the slide rail grooves are matched with slide rail wheels with appropriate sizes; and the slide rail wheels are fixedly connected with corresponding connecting plates.

15. An electric bed comprising a bed deck, a mattress placed above the bed deck, a drive device for driving the bed deck to be turned over, characterized in that, The lifting mechanism of the auxiliary equipment of any one of claims 1-14 is further included, the mattress is provided with a first recess in the head part; the first recess comprises a first surface, a second surface and a third surface, and forms a U-shaped; the width of the second surface is greater than the width of the baffle part, so that when the baffle part is closely attached to the second surface, the binding belt has enough space to closely attach to the second surface after passing through the rectangular hole; the lengths of the first surface and the third surface are greater than the length of the lifting mechanism, and the rear end of the lifting mechanism does not protrude from the mattress when the mattress is placed flat or turned over.

16. An electric bed according to claim 15, wherein, The head part of the bed plate is provided with a second recess, the position of the second recess corresponds to that of the first recess, and the area of the second recess is the same as that of the first recess; the second recess is matched with the first base, and the connecting plate is used for fixedly connecting the lifting mechanism, so that the lifting mechanism can reciprocate along the slide rail groove.

17. An electric bed as claimed in claim 16, characterised in that, The sum of the thicknesses of the bed plate and the mattress is greater than the height of the lifting mechanism when the lifting mechanism is not working, so that the mattress maintains a flat appearance when the lifting mechanism is not working; and the sum of the thicknesses of the bed plate and the mattress is less than the height of the lifting mechanism when the first lifting device is lifted to the highest point.

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