A multi-gear control device for bedding

Abstract

This application relates to a multi-position control device for bedding, comprising a four-bar linkage, a locking mechanism, and a control mechanism. The four-bar linkage includes a first bar for mounting to the bed frame, a second bar for mounting to the headboard, and a third bar rotatably connected to the first and second bars. The locking mechanism includes a position control rod with several insertion holes and fixed relative to the first bar, and a pin. The pin is mounted on the third bar. The control mechanism controls the insertion or disengagement of the pin from the insertion holes. The movement trajectory of the second bar determines the movement trajectory of the headboard. When the headboard angle needs to be adjusted, the control mechanism disengages the pin from the insertion holes. At this time, manual force can be applied to the headboard to drive it to rotate relative to the bed frame. Once the headboard has rotated to a suitable angle, the control mechanism inserts the pin into the appropriate insertion hole, thus fixing the headboard relative to the bed frame. This allows the headboard to be adjusted to multiple angles as needed, meeting people's needs for headboard angle adjustment.

Description

Technical Field

[0001] This application relates to the field of bedding, and more particularly to a multi-position control device for bedding. Background Technology

[0002] As beds have evolved and diversified, people have developed more functional requirements, with a growing demand for adjustable headboard angles. Initially, the headboard and bed frame were integrated, providing only a fixed vertical angle support. As demand increased, simple linkage mechanisms emerged to enable rotation, offering only initial and final angles. This failed to meet the evolving needs for adjustable headboard angles. Summary of the Invention

[0003] To meet people's needs for adjustable bed backrest angles

[0004] This application provides a multi-position control device for bedding, which adopts the following technical solution:

[0005] A multi-position control device for bedding includes a four-bar linkage, a locking mechanism, and a control mechanism. The four-bar linkage includes a first bar for mounting on a bed frame, a second bar for mounting on a bed backrest, and a third bar rotatably connected to both the first and second bars. The locking mechanism includes a position control bar with several holes and fixed relative to the first bar, and a pin that slides into any one of the holes. The pin is mounted on the third bar. The control mechanism controls the insertion or disengagement of the pin from the holes.

[0006] By adopting the above technical solution, the movement trajectory of the second rod determines the movement trajectory of the headboard. When it is necessary to adjust the headboard angle, the control mechanism disengages the pin from the socket. At this time, manual force can be applied to the headboard to drive it to rotate relative to the bed frame. Once the headboard has rotated to the appropriate angle, the control mechanism inserts the pin into the appropriate socket, thereby fixing the headboard relative to the bed frame. This allows the headboard to be adjusted to multiple angles as needed, meeting people's needs for headboard angle adjustment and improving user comfort.

[0007] Optionally, the locking mechanism further includes a fixed seat fixedly mounted on the third rod, a rotating component rotatably connected to the fixed seat, a push plate fixedly mounted on the rotating component, and an elastic component for driving the pin into the socket. The control mechanism is used to control the rotating component to rotate relative to the fixed seat until the push plate pushes the pin away from the socket.

[0008] By adopting the above technical solution, the control mechanism drives the rotating component to rotate, thereby causing the push plate to push the pin away from the insertion hole. At this time, the bed backrest can move relative to the bed frame. When the control mechanism does not apply force to the rotating component, the elastic component drives the pin to insert into the insertion hole. At this time, the pin will also push the push plate to rotate the rotating component relative to the fixed seat to the initial state. This achieves the fixation of the bed backrest relative to the bed frame.

[0009] Optionally, the pin is provided with a retaining ring, the two ends of the elastic member abut against the retaining ring and the third rod respectively, and the push plate abuts against the side of the retaining ring away from the elastic member.

[0010] By adopting the above technical solution, the elastic element can apply force to the pin more stably. At the same time, the retaining ring can also increase the contact area of ​​the push plate when applying force to the pin, thus enabling the push plate to apply force to the pin more stably.

[0011] Optionally, the gear control lever is arc-shaped, and the arc of the gear control lever is the same as the movement trajectory of the pin, and the holes are arranged at equal intervals on the gear control lever.

[0012] By adopting the above technical solution, the gear control lever is set in an arc shape, which allows the socket to better match the pin, so that the pin can be stably and accurately inserted into the socket.

[0013] Optionally, the gear control lever is provided with a limiting member; when the second lever is parallel to the third lever, the limiting member abuts against the third lever.

[0014] By adopting the above technical solution, the limiting component can play a limiting role, thereby preventing the second rod from rotating excessively relative to the third rod, which could damage the four-bar linkage.

[0015] Optionally, the gear control lever is fixedly installed on the first lever.

[0016] By adopting the above technical solution, during installation, the locking mechanism and gear control lever are first installed onto the four-bar linkage, and then the entire module is installed between the bed frame and the headboard, which facilitates the overall installation.

[0017] Optionally, the first rod has at least three mounting holes spaced apart along its length, and the gear control rod has two mounting pins, one of which is used to fix and connect with any one of the mounting holes.

[0018] By adopting the above technical solution, the position of the gear control lever relative to the first lever is adjusted by installing mounting pins in different mounting holes, thereby adjusting the rotation gear of the bed backrest.

[0019] Optionally, the four-bar linkage further includes a fourth bar rotatably connected to the first and second bars, wherein the second and fourth bars are rotatably connected via a torsion spring reset assembly.

[0020] By adopting the above technical solution, if the pin does not enter the insertion hole when the elastic element moves it, the four-bar linkage cannot be locked. Because the torsion spring reset assembly rotates the second and fourth bars, the entire four-bar linkage changes shape, and the pin enters the nearest insertion hole, achieving the locking state.

[0021] Optionally, the control mechanism includes a connecting seat for mounting on the bed frame, a pull cable with one end mounted on a fixed seat and the other end passing through the connecting seat, and a force-applying component fixedly connected to the end of the pull cable away from the fixed seat; when the pull cable is pulled, the rotating component rotates relative to the fixed seat, and the push plate pushes the pin away from the insertion hole.

[0022] By adopting the above technical solution, the user pulls the cable through the force-applying component, causing the rotating component to rotate. The force of the rotating component transmits to the elastic component, causing the pin to move. The pin disengages from the stop control lever, allowing the four-bar linkage to move freely, thus enabling adjustment of the bed backrest. When the user no longer applies force to the force-applying component, the elastic component, under the action of the Hooke's force, causes the pin to move, and one end of the pin enters the insertion hole of the stop control lever, thereby locking the four-bar linkage and fixing the bed backrest relative to the bed frame.

[0023] Optionally, there are two of each of the four-bar linkage, locking mechanism, and pull cable, with one four-bar linkage corresponding to one locking mechanism and one locking mechanism corresponding to one pull cable. The two four-bar linkages are respectively installed on both sides of the bed backrest, and the force-applying component is located in the middle of the bed frame.

[0024] By adopting the above technical solution, the two sides of the bed backrest are supported, allowing the bed backrest to be more stably connected to the bed frame.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] The headboard can be adjusted to multiple angles to meet the user's requirements;

[0027] The bed headboard angle is easy and quick to adjust, improving the user experience;

[0028] It can provide greater support to the human body, improving the comfort of use. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the embodiment installed on the bed.

[0030] Figure 2 This is a structural schematic diagram of an embodiment.

[0031] Figure 3 This is a schematic diagram of the structure of the four-bar linkage and locking mechanism in the initial state in the embodiment.

[0032] Figure 4 This is a schematic diagram of the structure of the embodiment when it is installed on the bed in its initial state.

[0033] Figure 5 This is a schematic diagram of the four-bar linkage and locking mechanism in the embodiment when the bed backrest rotates to its limit.

[0034] Figure 6 This is a schematic diagram of the structure when the headboard is rotated to its limit after the embodiment is installed on the bed.

[0035] Figure 7 This is a schematic diagram of the four-bar linkage and locking mechanism in the embodiment.

[0036] Figure 8 This is a schematic diagram of the locking mechanism in the embodiment.

[0037] Explanation of reference numerals in the attached diagram: 1. Four-bar linkage; 2. Locking mechanism; 3. Control mechanism; 4. First lever; 5. Second lever; 6. Third lever; 7. Fourth lever; 8. Bed frame; 9. Bed backrest; 10. Gear control lever; 11. Pin; 12. Fixed seat; 13. Rotating component; 14. Push plate; 15. Compression spring; 16. Insertion hole; 17. Mounting hole; 18. Mounting pin; 19. Rotating seat; 20. Mounting seat; 21. Snap ring; 22. Torsion spring reset assembly; 23. Connecting seat; 24. Pull cable; 25. Force application component; 26. Limiting component. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0039] This application discloses a multi-position control device for bedding. (See also...) Figure 1 and Figure 2 A multi-position control device for bedding includes a four-bar linkage 1, a locking mechanism 2, and a control mechanism 3. Two four-bar linkages 1 and two locking mechanisms 2 are provided, with one four-bar linkage 1 corresponding to one locking mechanism 2. The two four-bar linkages 1 are respectively installed on both sides of the bed backrest 9. Referring to 3, the four-bar linkage 1 includes a first link 4, a third link 6, a second link 5, and a fourth link 7 that are rotatably connected to each other in sequence. The first link 4 is fixedly installed on the bed frame 8, and the second link 5 is fixedly installed on the bed backrest 9. The control mechanism 3 has the function of controlling the locking mechanism 2 to lock or unlock the four-bar linkage 1.

[0040] The initial state of the four-bar linkage 1 is referenced. Figure 3 and Figure 4When the angle of the headboard 9 needs to be adjusted, the control mechanism 3 controls the locking mechanism 2 to unlock the four-bar linkage 1, allowing the four-bar linkage 1 to move. At this time, force can be applied to the headboard 9 to drive it to rotate relative to the bed frame 8 until the headboard 9 rotates to the appropriate angle. Then, the control mechanism 3 stops applying force to the locking mechanism 2, causing the locking mechanism 2 to return to the locked state of the four-bar linkage, stabilizing the angle of the headboard 9 at the manually adjusted angle. This allows for the adjustment of the headboard 9 angle to meet different usage needs. The maximum movement angle of the four-bar linkage 1 is shown in the figure. Figure 5 and Figure 6 .

[0041] Specifically, refer to Figure 7 and Figure 8 The locking mechanism 2 includes a gear control lever 10, a pin 11, a fixed base 12, a rotating component 13, a push plate 14, and an elastic component. The gear control lever 10 is arc-shaped and has several equally spaced insertion holes 16. The first rod 4 has six mounting holes 17 spaced along its length. The gear control lever 10 has two mounting pins 18, one of which is used to fix it to any one of the mounting holes 17. The gear control lever 10 is fixedly installed relative to the first rod 4 in a suitable position using the mounting pins 18.

[0042] Reference Figure 7 and Figure 8 The fixed base 12 is fixedly installed on the third rod 6. The rotating component 13 includes a rotating base 19 and a mounting base 20. The rotating base 19 is rotatably connected to the fixed base 12, and the mounting base 20 is fixedly installed on the rotating base 19 by bolts. The mounting base 20 is used to connect the control mechanism 3. The push plate 14 is fixedly installed on the rotating component 13. The pin 11 passes through the push plate 14 and is slidably connected to the push plate 14. A retaining spring 21 is installed on the pin 11, and the retaining spring 21 abuts against the side of the push plate 14 away from the gear adjustment rod. The elastic element is a compression spring 15, which is sleeved on the pin 11, and both ends of the compression spring 15 abut against the third rod 6 and the retaining spring 21.

[0043] The control mechanism 3 drives the rotating component 13 to rotate, thereby causing the push plate 14 to push the pin 11 away from the socket 16. At this time, the four-bar linkage 1 is unlocked, and the headboard 9 can move relative to the bed frame 8. When the control mechanism 3 does not apply force to the rotating component 13, the elastic element drives the pin 11 to insert into the socket 16. At this time, the pin 11 will also push the push plate 14 to rotate the rotating component 13 relative to the fixed seat 12 to the initial state. This achieves the fixation of the headboard 9 relative to the bed frame 8. Optionally, a reset element is provided between the rotating component 13 and the fixed seat 12 to keep the rotating component 13 in the initial state. The reset element can be a torsion spring. In the initial state, the control mechanism 3 does not apply force to the rotating component 13.

[0044] Reference Figure 7To prevent the control mechanism 3 from applying force to the rotating component 13, when the locking mechanism locks the four-bar linkage 1, the pin 11 can be stably inserted into the socket 16. The second rod 5 and the fourth rod 7 are rotatably connected via a torsion spring reset assembly 22. The torsion spring reset assembly 22 includes a torsion spring and an end cap. The torsion spring is used to drive the second rod 5 and the fourth rod 7 back to their natural state. The end cap is used to cover the rotational connection point of the torsion spring, the second rod 5, and the fourth rod 7, thereby reducing the probability of foreign objects interfering with the torsion spring.

[0045] When the control mechanism 3 ceases to apply force to the rotating component 13, if the pin is not aligned with the insertion hole 16, the four-bar linkage 1 cannot be locked. At this time, due to the torsion spring reset assembly 22 driving the second link 5 and the fourth link 7 to rotate, the entire four-bar linkage 1 changes shape, and the pin enters the nearest insertion hole 16, achieving the locked state. This ensures that the headboard 9 remains stable relative to the bed frame 8 after the angle is adjusted.

[0046] Reference Figure 2 and Figure 7 The control mechanism 3 includes a connecting seat 23, two pull cables 24, and a force-applying component 25. Each pull cable 24 corresponds to a locking mechanism. The connecting seat 23 is fixedly installed in the middle of the bed frame 8. One end of each pull cable 24 is fixedly connected to the mounting base 20 by bolts, and the other end passes through the connecting seat 23. Both pull cables 24 are simultaneously fixedly connected to the force-applying component 25. The force-applying component 25 can be a pull ring, a lifting lug, a flexible lifting lug, etc. In this embodiment, the force-applying component 25 is a pull ring made of fabric tape.

[0047] By applying force to the force-applying component 25 and transmitting the force through the pull wire 24, the rotating component 13 is pulled to rotate relative to the fixed base 12, thereby unlocking the four-bar linkage 1. When the force-applying component 25 is no longer applied, both the rotating component 13 and the pin 11 are reset, thus locking the four-bar linkage 1.

[0048] Reference Figure 5 To prevent the bed backrest 9 from rotating excessively, a limiting element 26 is provided on the stop control lever 10. The limiting element 26 can be a limiting block, a limiting rivet, etc.; in this embodiment, the limiting element 26 is a limiting rivet. When the second lever 5 is parallel to the third lever 6, the limiting element 26 abuts against the third lever 6. At this time, the four-bar linkage 1 cannot continue to move towards the limiting element 26, preventing the bed backrest 9 from rotating excessively. Meanwhile, referring to… Figure 3 When the four-bar linkage 1 is in its initial state, the limiting member 26 abuts against the inward side of the fourth bar 7, and the first bar 4 can no longer move toward the fourth bar 7, so that the bed backrest 9 will not rotate excessively.

[0049] The implementation principle of a multi-position control device for bedding according to an embodiment of this application is as follows:

[0050] 1. In the initial state, the pin 11 is located in the socket 16, the compression spring 15 is in the natural state, and the force-applying component 25 is not under force;

[0051] 2. When it is necessary to adjust the angle of the bed backrest 9, one hand can pull the force-applying component 25 down, and then the other hand can apply force to the bed backrest 9 to rotate the bed backrest 9 to the required angle; when the force-applying component 25 is pulled down, the pull cable 24 drives the rotating component 13 to rotate relative to the fixed seat 12, thereby the push plate 14 pushes the pin 11 away from the socket 16, so the four-bar linkage 1 is unlocked, and the bed backrest 9 can rotate relative to the bed frame 8;

[0052] 3. After the headboard 9 is adjusted to a suitable angle, release the force-applying component 25. At this time, the pull cable 24 no longer applies force to the rotating component 13. Under the action of the compression spring 15, the pin 11 moves toward the position adjustment lever. If the pin 11 is aligned with the insertion hole 16, the pin 11 is directly inserted into the insertion hole 16, completing the locking of the four-bar linkage 1. If the pin is not aligned with the insertion hole 16 at this time, the torsion spring reset component 22 drives the second rod 5 and the fourth rod 7 to rotate, thereby changing the shape of the entire four-bar linkage 1. The pin enters the nearest insertion hole 16, achieving the locking state. This ensures that the headboard 9 can remain stable relative to the bed frame 8 after the angle is adjusted.

[0053] 4. The adjustable headboard 9 can provide users with different resting positions and improve the comfort of large-area back support, thereby improving the comfort of use;

[0054] 5. When it is necessary to adjust the angle difference between the rotation positions of the bed backrest 9, the position control lever 10 can be fixed in different positions relative to the first lever 4 by using the mounting nail 18, thereby adjusting the angle difference between the two positions.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-position control device for bedding, characterized in that: The device includes a four-bar linkage (1), a locking mechanism (2), and a control mechanism (3). The four-bar linkage (1) includes a first bar (4) for mounting on the bed frame (8), a second bar (5) for mounting on the bed backrest (9), and a third bar (6) that is rotatably connected to the first bar (4) and the second bar (5). The locking mechanism (2) includes a gear control bar (10) with several insertion holes (16) and fixed relative to the first bar (4) and a pin (11) that slides into any one of the insertion holes (16). The pin (11) is mounted on the third bar (6). The control mechanism (3) is used to control the insertion or disengagement of the pin (11) from the insertion hole (16). The locking mechanism (2) further includes a fixed seat (12) fixedly installed on the third rod (6), a rotating part (13) rotatably connected to the fixed seat (12), a push plate (14) fixedly installed on the rotating part (13), and an elastic element for driving the pin (11) to insert into the socket (16). The control mechanism (3) is used to control the rotating part (13) to rotate relative to the fixed seat (12) until the push plate (14) pushes the pin (11) away from the socket (16). The four-bar linkage (1) further includes a fourth bar (7) rotatably connected to the first bar (4) and the second bar (5), and the second bar (5) and the fourth bar (7) are rotatably connected by a torsion spring reset assembly (22).

2. The multi-position control device for bedding according to claim 1, characterized in that: The pin (11) is provided with a retaining ring (21), and the two ends of the elastic member abut against the retaining ring (21) and the third rod (6) respectively. The push plate (14) abuts against the side of the retaining ring (21) away from the elastic member.

3. The multi-position control device for bedding according to claim 1, characterized in that: The gear control lever (10) is arc-shaped, and the arc of the gear control lever (10) is the same as the movement trajectory of the pin (11). The holes (16) are arranged at equal intervals on the gear control lever (10).

4. A multi-position control device for bedding according to claim 3, characterized in that: The gear control lever (10) is provided with a limiting member (26); when the second lever (5) is parallel to the third lever (6), the limiting member (26) abuts against the third lever (6).

5. A multi-position control device for bedding according to claim 1, characterized in that: The gear control lever (10) is fixedly installed on the first lever (4).

6. A multi-position control device for bedding according to claim 5, characterized in that: The first rod (4) has at least three mounting holes (17) spaced apart along its length, and the gear control rod (10) has two mounting pins (18), one of which is used to fix it to any one of the mounting holes (17).

7. A multi-position control device for bedding according to claim 1, characterized in that: The control mechanism (3) includes a connecting seat (23) for mounting on the bed frame (8), a pull wire (24) with one end mounted on the fixed seat (12) and the other end passing through the connecting seat (23), and a force-applying member (25) fixedly connected to the end of the pull wire (24) away from the fixed seat (12); when the pull wire (24) is pulled, the rotating member (13) rotates relative to the fixed seat (12), and the push plate (14) pushes the pin (11) away from the socket (16).

8. A multi-position control device for bedding according to claim 7, characterized in that: Two of each of the four-bar linkage (1), locking mechanism (2) and pull wire (24) are provided, with one four-bar linkage (1) corresponding to one locking mechanism (2) and one locking mechanism (2) corresponding to one pull wire (24). The two four-bar linkages (1) are respectively used to install on both sides of the bed backrest (9), and the force-applying component (25) is located in the middle of the bed frame (8).

Images