A bed headrest driving device and a bed

Abstract

A bed headrest driving device and a bed, comprising: a fixed frame provided with a sliding track, the sliding track comprising a linear track and a rotating track connected with the linear track; a connecting rod mechanism provided with a guide abutting against the sliding track; a driving mechanism connected with the fixed frame and the connecting rod mechanism, used for driving the connecting rod mechanism to move; wherein, under the driving of the driving mechanism, when the guide slides along the linear track, the connecting rod mechanism moves linearly, and when the guide abuts against the rotating track, the connecting rod mechanism rotates. The bed headrest driving device and the bed can adjust the height and angle of the bed headrest, meeting the use requirements of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household, in particular to a bed head driving device and a bed. BACKGROUND

[0002] Bed is generally used in bedroom, dormitory, ward, hotel and other places, and is usually used to meet the daily rest and sleep needs of human beings. The bed head is the main part for people to lean on. However, most bed heads are fixed and cannot be adjusted, and the leaning posture cannot be adjusted by adjusting the angle of the bed head.

[0003] In order to adjust the posture of the user sitting on the bed, the bed head of some beds can be adjusted in angle at present, but only simple angle inclination adjustment can be performed, and the comfortable posture needs of people with different heights and body shapes cannot be met, and the user experience is not good. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a bed head driving device and a bed, which can adjust the height and angle of the bed head to meet the needs of users with different heights and body shapes.

[0005] In a first aspect, the present application provides a bed head driving device, which adopts the following technical scheme: a bed head driving device for driving the movement of a bed head, comprising:

[0006] A fixed frame is provided with a sliding rail, and the sliding rail comprises a straight rail and a rotating rail connected with the straight rail;

[0007] A connecting rod mechanism is used to connect with the bed head, and the connecting rod mechanism is provided with a guide piece abutting against the sliding rail;

[0008] A driving mechanism is connected with the fixed frame and the connecting rod mechanism, and is used to drive the movement of the connecting rod mechanism;

[0009] Under the driving of the driving mechanism, when the guide piece slides along the straight rail, the connecting rod mechanism moves linearly, and when the guide piece abuts against the rotating rail, the connecting rod mechanism rotates.

[0010] By adopting the above technical scheme, the driving mechanism drives the connecting rod mechanism to move along the sliding rail. Under the driving of one driving mechanism, the connecting rod mechanism can move linearly and rotate. When the connecting rod mechanism moves linearly, the bed head connected with the connecting rod mechanism can be raised or lowered, so as to adapt to the leaning of people with different heights. When the connecting rod mechanism rotates, the bed head connected with the connecting rod mechanism can change the inclination angle, so as to meet the different use needs of the user.

[0011] With the first aspect, further technical solutions, the connecting rod mechanism includes a driving rod, a sliding rod, a connecting rod and a rotating rod, the driving rod, the sliding rod, the connecting rod and the rotating rod are sequentially pivotally connected to form a four-bar linkage mechanism, the driving rod is connected with the driving mechanism, the guide piece is arranged at the middle part of the sliding rod, and the connecting rod is used for connecting the bed headrest.

[0012] By adopting the above technical solutions, the connecting rod mechanism adopts the four-bar linkage mechanism, under the driving of the driving mechanism, the four-bar linkage mechanism can slide linearly according to the set trajectory and can rotate according to the set trajectory, and the use requirements of the bed headrest can be met. The driving rod is connected with the driving mechanism, the driving of the driving mechanism on the connecting rod mechanism is facilitated, the guide piece is arranged at the middle part of the sliding rod, and the abutting movement of the connecting rod mechanism and the sliding rail can be ensured to move according to the set trajectory. The connecting rod connecting the bed headrest can make the bed headrest move linearly or rotationally with the connecting rod mechanism, so as to realize different use function postures of the bed headrest.

[0013] With the first aspect, further technical solutions, a limiting column is arranged on the rotating rod, when the guide piece slides along the linear rail, the limiting column abuts against the driving rod to make the connecting rod mechanism maintain a constant quadrilateral structure.

[0014] By adopting the above technical solutions, when the connecting rod mechanism slides along the linear rail under the guidance of the guide piece, the bed headrest realizes the lifting function at this time, in order to ensure that the angle of the bed headrest is unchanged and has a stable support form during lifting. During this process, the guide piece abuts against the linear rail, the limiting piece abuts against the driving rod, the driving mechanism drives the connecting rod structure to move linearly, the connecting rod mechanism cannot rotate, the stable quadrilateral structure of the connecting rod mechanism is maintained, and the structural stability of the bed headrest during lifting is met.

[0015] With the first aspect, further technical solutions, in the connecting rod mechanism, the sliding rod is the shortest, and the driving rod is the longest.

[0016] By adopting the above technical solutions, when the connecting rod mechanism rotates, the rotation angle range of the connecting rod can be limited, so that the inclination angle of the bed headrest connected with the connecting rod meets the use requirements.

[0017] With the first aspect, further technical solutions, the driving mechanism drives the driving rod to move along a trajectory parallel to the linear rail.

[0018] By adopting the technical scheme, the driving rod can be driven to move linearly by a linear driving mechanism such as a linear motor or an electric push rod, or the driving rod can be driven to move linearly in a form combining a track and a connecting rod, and the movement track is controllable. The movement track of the driving rod is parallel to the linear track, so that one driving member can drive the connecting rod mechanism to move linearly and rotate, and the movement process is stable and reliable.

[0019] With reference to the first aspect, in a further technical scheme, the driving mechanism comprises a driving end and a movement end capable of moving linearly relative to the driving end, the driving end is fixedly connected with the fixed frame, and the movement end is connected with the driving rod.

[0020] By adopting the technical scheme, the driving end of the driving mechanism is fixedly connected with the fixed frame, the connecting rod mechanism is driven to move along the sliding track on the fixed frame by the movement end, and the driving reliability of the driving mechanism and the consistency of the movement track of the connecting rod mechanism are ensured.

[0021] With reference to the first aspect, in a further technical scheme, two groups of connecting rod mechanisms are arranged on both sides of the driving mechanism, the movement end is connected with a driving frame with adjustable length, and the two ends of the driving frame are fixedly connected with the driving rods of the two groups of connecting rod mechanisms. The distance between the two groups of connecting rod mechanisms can be adjusted by adjusting the length of the driving frame.

[0022] By adopting the technical scheme, the two groups of connecting rod mechanisms are connected with the bed headrest, so that the stability of the connection of the bed headrest can be ensured, the reliability of the driving of the bed headrest by the driving mechanism can be ensured, and the risk of position deformation of the bed headrest or disengagement of the connecting rod mechanism from the sliding track under stress can be reduced.

[0023] In a second aspect, the application provides a bed comprising the bed headrest driving device as described in the first aspect.

[0024] By adopting the technical scheme, the bed with the bed headrest driving device of the first aspect can meet the adjustment requirements of the height and angle of the bed headrest of a user, and the user experience is better and the user is more comfortable when leaning.

[0025] With reference to the second aspect, in a further technical scheme, the bed further comprises a bed frame and a bed headrest connected with the connecting rod mechanism, the fixed frame is fixedly connected with the bed frame, and when the driving mechanism drives the guide member to slide along the linear track, the bed headrest moves linearly to approach or move away from the bed frame.

[0026] By adopting the technical scheme, the bed headrest driving device is fixedly connected with the bed frame, so that the position stability of the bed headrest driving device can be ensured, and when the connecting rod mechanism moves linearly along the linear guide rail, the bed headrest moves up and down, so that the height of the bed headrest can be adjusted to adapt to different use requirements.

[0027] With the second aspect, further technical solutions, when the driving mechanism drives the guide to abut against the rotating track, the bed headrest rotates, and the rotation angle range of the bed headrest relative to the straight track is 0° to 45°.

[0028] By adopting the above technical solutions, when the connecting rod mechanism rotates, the inclination angle of the bed headrest changes to meet the reclining needs of the user. The rotation angle range of the bed headrest is set to 0° to 45°, which can meet the reclining function needs of most users, and this angle range is comfortable and does not affect the user's reading or mobile phone, fully meeting the deep needs of the user, and the experience is better.

[0029] In summary, the present application has the following beneficial effects:

[0030] 1. The bed headrest driving device of the present application has simple structure, safety, reliability, and good motion trajectory consistency.

[0031] 2. The bed headrest driving device of the present application can realize linear motion and rotary motion of the connecting rod mechanism through one driving member, and the two motions can realize smooth connection transition, and the functionality is more reasonable and the motion is more stable.

[0032] 3. The bed of the present application can meet the adjustment needs of the user for the height and angle of the bed headrest, and the inclination angle is more reasonable, fully meeting the deep needs of the user, and the user's experience is better, and the user is more comfortable when leaning. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic diagram of the bed headrest driving device of the present application;

[0034] Figure 2 is another angle structural schematic diagram of the bed headrest driving device of the present application;

[0035] Figure 3 is a structural schematic diagram of the fixed frame of the present application;

[0036] Figure 4 is a structural schematic diagram of the driving mechanism of the present application;

[0037] Figure 5 is a structural schematic diagram of the connecting rod mechanism of the present application;

[0038] Figure 6 is a structural schematic diagram of the bed headrest driving device of the present application in a rotating state;

[0039] Figure 7 is a structural schematic diagram of the bed of the present application in an original use state;

[0040] Figure 8 is a schematic diagram of the internal structure of the bed in the original use state of the present application;

[0041] Figure 9 This is a structural diagram of another usage state of the bed in this application;

[0042] Figure 10 This is a schematic diagram of the internal structure of the bed in another usage state of this application.

[0043] In the attached image:

[0044] 1. Fixed frame; 11. Linear track; 12. Rotary track; 13. Upper fixed plate; 14. Vertical plate; 15. Horizontal plate; 2. Drive mechanism; 21. Drive end; 22. Moving end; 23. Guide rail; 24. Right angle frame; 25. Power cord; 3. Linkage mechanism; 31. Drive rod; 32. Sliding rod; 321. Guide component; 33. Connecting rod; 34. Rotating rod; 341. Limiting post; 35. Drive frame; 351. Connecting plate; 100. Bed headboard drive device; 200. Bed headboard; 300. Bed frame. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0049] Example 1

[0050] like Figures 1-6 As shown, this embodiment discloses a headboard drive device 100.

[0051] As Figure 1 shown, the bed headrest driving device 100 comprises a fixed frame 1, a connecting rod mechanism 3 and a driving mechanism 2, the driving end 21 of the driving mechanism 2 is fixedly connected with the fixed frame 1, the moving end 22 of the driving mechanism 2 is connected with the connecting rod mechanism 3, and the moving end 22 can make linear motion relative to the driving end 21.

[0052] As Figure 2 shown, the connecting rod mechanism 3 comprises a driving rod 31, a sliding rod 32, a connecting rod 33 and a rotating rod 34 which are sequentially pivotally connected, and the driving rod 31, the sliding rod 32, the connecting rod 33 and the rotating rod 34 form a four-bar linkage mechanism. In the connecting rod mechanism 3, the lengths of the connecting rods are in the order of the sliding rod 32, the connecting rod 33, the rotating rod 34 and the driving rod 31 from small to large. The driving mechanism 2 comprises a guide rail 23, the moving end 22 of the driving mechanism 2 is fixedly connected with the driving rod 31 of the connecting rod mechanism 3 through a driving frame 35, the moving end 22 makes linear motion along the guide rail 23 under the driving of the driving end 21, the length of the driving frame 35 is adjustable, and the distance between the two groups of connecting rod mechanisms 3 can be adjusted by adjusting the length of the driving frame 35. The two ends of the driving rod 31 are pivotally connected with the sliding rod 32 and the rotating rod 34 respectively, and the two ends of the connecting rod 33 are pivotally connected with the end of the sliding rod 32 away from the driving rod 31 and the end of the rotating rod 34 away from the driving rod 31 respectively. The connecting rod 33 is used for being connected with the bed headrest 200, the middle part of the rotating rod 34 is fixedly connected with a limiting column 341, and the middle part of the sliding rod 32 is connected with a guide 321.

[0053] The side part of the fixed frame 1 is provided with a sliding rail which comprises a straight rail 11 and a rotating rail 12 connected with the straight rail 11, the straight rail 11 is parallel to the sliding direction of the guide rail 23, and the guide 321 always abuts against the sliding rail in the movement process of the connecting rod mechanism 3 driven by the driving mechanism 2. Under the driving of the driving mechanism 2, the moving end 22 drives the driving rod 31 to move linearly along the guide rail 23 through the driving frame 35, when the guide 321 slides along the straight rail 11, the limiting column 341 abuts against the driving rod 31, the assembly surface of the connecting rod 33 and the bed headrest 200 is parallel to the straight rail 11, and the connecting rod mechanism 3 keeps the quadrilateral structure unchanged to make linear motion; when the guide 321 abuts against the rotating rail 12, the moving end 22 continues to drive the driving rod 31 to move along the guide rail 23 through the driving frame 35, the guide 321 cannot move under the limitation of the rotating rail 12, the limiting column 341 is separated from the driving rod 31, the sliding rod 32 rotates around the guide 321 as the center, the connecting rod mechanism 3 makes rotating motion, and the assembly surface of the connecting rod 33 and the bed headrest 200 forms an angle with the straight rail 11, and the range of the angle is 0° to 45°.

[0054] As Figure 3As shown, the fixed frame 1 comprises a frame structure fixedly connected by the upper fixed plate 13 and two vertical plates 14, a horizontal plate 15 is fixedly connected between the two vertical plates 14, the linear rail 11 and the rotating rail 12 are arranged on the vertical plate 14, and the upper fixed plate 13 is used for being fixedly connected with the bed frame 300. In order to facilitate assembly, the linear rail 11 in the embodiment is a single-sided rail structure, and in actual application, the linear rail 11 can be a rail groove structure.

[0055] As shown in the figure, Figure 4 As shown, the driving mechanism 2 is a structure in which two driving members are connected in parallel, the driving member comprises a driving end 21 and a guide rail 23 fixedly connected with the driving end 21, the driving end 21 is connected with a driving power supply through a power line 25, the driving end 21 is further connected with a moving end 22, and the driving end 21 drives the moving end 22 to slide along the guide rail 23. The driving member in the embodiment is a linear slider, and in actual application, the driving member can also be an electric push rod or a linear motor. The driving ends 21 of the two driving members are fixedly connected, the guide rails 23 away from the driving ends 21 are fixedly connected through right-angle frames 24, so as to form a stable rectangular frame. The right-angle frames 24 are used for being fixedly connected with the bed frame 300, and the driving ends 21 are fixedly connected with the upper fixed plate 13 of the fixed frame 1.

[0056] As shown in the figure, Figure 5 As shown, the connecting rod mechanism 3 is connected by two groups of four-bar mechanisms through a driving frame 35, the driving frame 35 is fixedly connected with driving rods 31 of the two groups of four-bar mechanisms, and the driving rods 31 are sequentially pivotally connected with sliding rods 32, connecting rods 33 and rotating rods 34. The driving frame 35 is further fixedly provided with two spaced-apart connecting plates 351, and the connecting plates 351 are used for being connected with the moving ends 22 of the driving mechanisms 2.

[0057] As shown in the figure, Figure 6 As shown, the structure of the connecting rod mechanism 3 of the bed headrest driving device 100 in a rotating state. The driving mechanism 2 drives the driving rod 31 to move towards the driving end 21, the guide 321 on the sliding rod 32 enters the rotating rail 12, the sliding rod 32 rotates around the guide 321 as the center, the moving direction of the driving rod 31 remains parallel to the guide direction of the guide rail 23, the sliding rod 32, the rotating rod 34 and the connecting rod 33 rotate, and the connecting rod 33 forms an inclined angle with the guide rail 23.

[0058] Embodiment two

[0059] As shown in the figure, Figures 7-10 As shown, the embodiment discloses a bed provided with the bed headrest driving device 100 in the embodiment one, and as shown in the figure, Figure 7 As shown, the bed in the embodiment comprises a bed frame 300 and a bed headrest 200, and in an original use state, the bed headrest 200 is attached to the bed frame 300 and is in a vertical state.

[0060] As shown in the figure, Figure 8As shown, the bed headrests 200 in the embodiment are two, and the bed headrest driving devices 100 are vertically fixedly installed between the bed frame 300 and each bed headrest 200, the fixed frame 1 and the right-angle frame 24 are fixedly connected with the bed frame 300, and the driving rod 31 is fixedly connected with the bed headrest 200. When the driving mechanism 2 drives the guide 321 to slide along the linear track 11, the bed headrest 200 moves up and down linearly and approaches or moves away from the bed frame 300. When the driving mechanism 2 drives the guide 321 to abut against the rotating track 12, the bed headrest 200 rotates, and the rotation angle range of the bed headrest 200 relative to the linear track 11 is 0° to 45°.

[0061] As shown in Figure 9 and Figure 10 The two bed headrest driving devices 100 can drive the connected bed headrests 200 to move respectively, so that the bed headrests 200 can realize two use states of vertical and inclined, and the angle range of the bed headrests 200 inclined relative to the vertical direction is 0° to 45°, which can meet the adjustment requirements of the users for the height and angle of the bed headrests, and the experience of the users is better, and the users are more comfortable when leaning.

[0062] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, the present application can have various changes, modifications, replacements and variations, and these changes, modifications, replacements and variations all fall within the scope of the present application.

Claims

1. A bed headrest drive arrangement for driving movement of a bed headrest (200), characterised in that, include: The fixed frame (1) is provided with a sliding track, the sliding track including a straight track (11) and a rotating track (12) connected to the straight track (11); A linkage mechanism (3) is used to connect with the headboard (200), and the linkage mechanism (3) is provided with a guide (321) that abuts against the sliding rail; The drive mechanism (2) is connected to the fixed frame (1) and the linkage mechanism (3) and is used to drive the linkage mechanism (3) to move; Under the drive of the drive mechanism (2), when the guide (321) slides along the linear track (11), the linkage mechanism (3) moves linearly, and when the guide (321) abuts against the rotating track (12), the linkage mechanism (3) moves rotating. The linkage mechanism (3) includes a drive rod (31), a sliding rod (32), a connecting rod (33), and a rotating rod (34). The drive rod (31), sliding rod (32), connecting rod (33), and rotating rod (34) are pivotally connected in sequence to form a four-bar linkage.

2. The bedrest head drive apparatus according to claim 1, characterized by The headboard drive device is provided with two guide members (321) and two sliding rods (32). The drive rod (31) is connected to the drive mechanism (2). The guide member (321) is located in the middle of the sliding rod (32). The connecting rod (33) is used to connect the headboard (200).

3. The bedrest head drive apparatus according to claim 2, characterized by A limiting post (341) is provided on the rotating rod (34). When the guide (321) slides along the straight track (11), the limiting post (341) abuts against the driving rod (31) to make the linkage mechanism (3) remain unchanged.

4. The bedrest head drive apparatus according to claim 2, characterized by In the linkage mechanism (3), the sliding rod (32) is the shortest and the driving rod (31) is the longest.

5. The bedrest head drive apparatus according to claim 2, wherein The drive mechanism (2) drives the drive rod (31) to move in a trajectory parallel to the straight track (11).

6. The bedrest head drive apparatus according to claim 5, wherein The drive mechanism (2) includes a drive end (21) and a motion end (22) that can move linearly relative to the drive end (21). The drive end (21) is fixedly connected to the fixed frame (1), and the motion end (22) is connected to the drive rod (31).

7. The bedrest head drive apparatus according to claim 6, wherein Two sets of linkage mechanisms (3) are provided on both sides of the drive mechanism (2). The moving end (22) is connected to a drive frame (35) with adjustable length. The two ends of the drive frame (35) are fixedly connected to the drive rods (31) of the two sets of linkage mechanisms (3). The distance between the two sets of linkage mechanisms (3) can be adjusted by adjusting the length of the drive frame (35).

8. A bed characterized in that, Includes the headrest drive device as described in any one of claims 1 to 7.

9. The bed of claim 8, wherein, It also includes a bed frame (300) and a headrest (200) connected to the linkage mechanism (3). The fixed frame (1) is fixedly connected to the bed frame (300). When the drive mechanism (2) drives the guide (321) to slide along the linear track (11), the headrest (200) moves in a straight line closer to or further away from the bed frame (300).

10. The bed of claim 9, wherein, The driving mechanism (2) drives the guide (321) to abut against the rotating track (12), and the bed headrest (200) rotates, and the rotation angle range of the bed headrest (200) relative to the linear track (11) is 0°-45°.

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