Double-point rotating multifunctional lifting headrest

Abstract

The utility model relates to headrest technical field especially relates to a double point rotation multifunctional lifting headrest. Including headrest frame whole, headrest connecting swing arm, headrest front and rear sliding combination and headrest pedestal, headrest frame whole is connected with headrest connecting swing arm rotation through headrest frame sliding part, headrest front and rear sliding combination is installed on headrest connecting swing arm, and can slide along headrest connecting swing arm front and rear, headrest connecting swing arm is connected with headrest pedestal rotation through front and rear sliding part, headrest frame sliding part constitutes first rotation axis, headrest frame whole can slide and rotate motion with first rotation axis, front and rear sliding part constitutes second rotation axis, and headrest connecting swing arm can rotate motion with second rotation axis, the utility model provides a headrest that structure is reasonable, adjusts flexible convenient, to better satisfy the user's diversified use demand.

Description

Technical Field

[0001] This utility model relates to the field of headrest technology, and in particular to a dual-point rotating multi-functional lifting headrest. Background Technology

[0002] As an important component of office furniture and home seating, the comfort and adjustability of swivel chair headrests directly affect the user experience. Currently, swivel chair headrests on the market can be divided into several types based on function, mainly including fixed headrests, headrests with only height adjustment, and headrests that combine height adjustment and forward / backward sliding functions. These headrest structures, to a certain extent, meet users' basic needs for adjusting the support position.

[0003] However, existing adjustable headrests still have certain limitations. For example, some headrests only support linear adjustment in one direction and cannot achieve multi-angle rotation, making it difficult to adapt to people of different heights, sitting postures, and usage habits. Although some products have multi-directional adjustment functions, the adjustment mechanisms are mutually restrictive and cannot achieve independent movement, resulting in a limited adjustment range and inconvenient operation. In addition, existing headrests usually lack an automatic reset mechanism for functions such as forward and backward sliding, making the adjustment process cumbersome and affecting the user experience. Utility Model Content

[0004] This utility model provides a headrest with a reasonable structure and flexible and convenient adjustment to better meet the diverse needs of users.

[0005] The technical solution adopted in this utility model is as follows: a dual-point rotating multifunctional lifting headrest, comprising a headrest frame assembly, a headrest connecting arm, a headrest front-to-back sliding assembly, and a headrest base. The headrest frame assembly is formed by fixing the headrest frame, headrest frame pressure strip, and headrest frame sliding member together with screws. The headrest frame assembly is rotatably connected to the headrest connecting arm via the headrest frame sliding member. The headrest front-to-back sliding assembly is fitted onto the headrest connecting arm and can slide back and forth along the headrest connecting arm. The headrest connecting arm is rotatably connected to the headrest base via the front-to-back sliding member. The headrest frame sliding member forms a first rotation axis, and the headrest frame assembly can slide up and down and rotate around the first rotation axis. The front-to-back sliding member forms a second rotation axis, and the headrest connecting arm can rotate around the second rotation axis.

[0006] As a further improvement of this utility model, the inner side of the headrest frame is provided with multiple recesses, and two glass beads are installed on the headrest frame slider, respectively located on the upper and lower sides of the headrest frame slider, and the glass beads cooperate with the recesses.

[0007] As a further improvement of this utility model, a limiting tooth structure is provided on one side of the headrest frame sliding member, which cooperates with the rotation limiting member. The rotation limiting member is connected to the movable stud. By pressing the rotation button, the movable stud is unlocked, thereby allowing the entire headrest frame to rotate around the first rotation axis. After releasing the rotation button, it automatically locks.

[0008] As a further improvement of this utility model, the rotation limiting component has a nut pre-embedded in it, and the screw is screwed into the nut to form the movable stud. The rotation button, compression spring, rotation fitting component, headrest frame sliding component, screw, headrest connecting swing arm and rotation limiting component together constitute the headrest frame rotation shaft.

[0009] As a further improvement of this utility model, the headrest connecting arm is provided with multiple front and rear sliding positions. The front and rear sliding assembly of the headrest includes a sliding locking component and a compression spring. The sliding locking component cooperates with the locking position of the headrest connecting arm through the deformation and rebound of the compression spring to realize the locking and unlocking of the front and rear sliding.

[0010] As a further improvement of this utility model, the headrest front and back sliding assembly also includes a tension spring. One end of the tension spring is fixed to the front and back sliding member, and the other end is fixed to the headrest connecting swing arm. When the headrest front and back sliding assembly slides to the last stop, the tension spring automatically returns to its original position, so that the headrest front and back sliding assembly automatically slides forward and returns to its original position.

[0011] As a further improvement of this utility model, the sliding locking component is installed on the front and rear sliding components by two circular pins, and moves back and forth in the slot holes of the front and rear sliding components to achieve locking and unlocking in a seesaw manner.

[0012] As a further improvement of this utility model, it also includes a headrest connecting arm limiting member, which is disposed on the headrest connecting arm to limit the final sliding distance of the front and rear sliding assembly of the headrest on the headrest connecting arm.

[0013] As a further improvement of this utility model, the headrest base and the headrest connecting arm are connected by a headrest base rotation shaft. The headrest base rotation shaft includes a rotation button, a compression spring, a rotation fitting, a front and rear sliding member, a screw, a headrest base, and a rotation limit member. By pressing the rotation button, the movable stud is unlocked, thereby allowing the headrest connecting arm to rotate around the second rotation axis. After releasing the rotation button, it automatically locks.

[0014] As a further improvement of this utility model, the headrest base is provided with a headrest base decorative cover.

[0015] The beneficial effects of this utility model are as follows: By setting two independent rotation axes for the headrest frame slider and the front and rear slider, this utility model realizes the separate rotation of the headrest frame and the headrest connecting arm without interference, which significantly expands the angle and position adjustment range of the headrest and can better adapt to the needs of different users' heights, sitting postures and usage habits.

[0016] This utility model's headrest frame integrates both up-and-down sliding and rotation functions, which can be operated independently or in combination. The headrest's front-and-back sliding assembly has multiple adjustable positions and an automatic return function at the end. Through the cooperation of the tension spring and the sliding locking component, one-button reset is achieved, making the operation simple and efficient and improving the user experience.

[0017] Each rotation and sliding function of this utility model is equipped with a reliable locking mechanism. For example, pressing the rotation button controls the movable stud to achieve quick unlocking and automatic locking, ensuring that the headrest position is stable after adjustment. The overall structure is reasonably designed, easy to assemble, and has good safety and practicality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a dual-point rotating multi-functional lifting headrest according to this utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the sliding part of the headrest frame and the glass beads in a dual-point rotating multi-functional lifting headrest of this utility model;

[0020] Figure 3 This is a schematic diagram of the front and rear sliding parts of a dual-point rotating multi-functional lifting headrest according to this utility model;

[0021] Figure 4 This is a schematic diagram of the headrest connecting swing arm structure of a dual-point rotating multi-functional lifting headrest according to this utility model;

[0022] Figure 5 This is a schematic diagram of the movable stud structure of a dual-point rotating multi-functional lifting headrest according to this utility model;

[0023] Figure 6 This is a schematic diagram of the front and rear sliding assembly structure of a dual-point rotating multi-functional lifting headrest according to this utility model;

[0024] Figure 7 This is a schematic diagram of the rotating shaft structure of a dual-point rotating multi-functional lifting headrest according to this utility model;

[0025] Figure 8 This is a schematic diagram of the rotating shaft structure of the headrest base of a dual-point rotating multi-functional lifting headrest according to this utility model.

[0026] As shown in the figure: 1. Headrest base; 2. Headrest base decorative cover; 3. Headrest frame; 4. Headrest frame pressure strip; 5. Headrest frame sliding component; 6. Sliding locking component; 7. Glass bead; 8. Rotation limiting component; 9. Screw; 10. Front and rear sliding component; 11. Rotation button; 12. Compression spring; 13. Headrest connecting swing arm; 14. Headrest connecting swing arm limiting component; 15. Rotation mating component; 16. Circular pin; 17. Tension spring. Detailed Implementation

[0027] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0028] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0029] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] This utility model provides the following: Figure 1-8 The illustrated dual-point rotating multi-functional lifting headrest includes a headrest frame, a headrest connecting arm 13, a headrest front-to-back sliding assembly, and a headrest base 1. The headrest frame is composed of a headrest frame 3, a headrest frame pressure strip 4, and a headrest frame sliding member 5, which are fixedly connected by screws. The headrest frame is rotatably connected to the headrest connecting arm 13 via the headrest frame sliding member 5. The headrest front-to-back sliding assembly is fitted onto the headrest connecting arm 13 and can slide back and forth along the headrest connecting arm 13. The headrest connecting arm 13 is rotatably connected to the headrest base 1 via the front-to-back sliding member 10. The headrest frame sliding member 5 forms a first rotation axis, allowing the headrest frame to slide up and down and rotate around the first rotation axis. The front-to-back sliding member 10 forms a second rotation axis, allowing the headrest connecting arm 13 to rotate around the second rotation axis.

[0031] In this utility model, the inner side of the headrest frame 3 is provided with multiple recesses, and two glass beads 7 are installed on the headrest frame slider 5, located on the upper and lower sides of the headrest frame slider 5 respectively, and the glass beads 7 cooperate with the recesses.

[0032] In this utility model, the headrest frame sliding member 5 has a limiting tooth structure on one side, which cooperates with the rotation limiting member 8. The rotation limiting member 8 is connected to a movable stud. By pressing the rotation button 11, the movable stud is unlocked, thereby allowing the entire headrest frame to rotate around the first rotation axis. After releasing the rotation button 11, it automatically locks. The rotation limiting member 8 has a nut pre-embedded in it, and the screw 9 is screwed into the nut to form a movable stud. The rotation button 11, the compression spring 12, the rotation fitting part 15, the headrest frame sliding member 5, the screw 9, the headrest connecting swing arm 13, and the rotation limiting member 8 together constitute the rotation axis of the headrest frame.

[0033] In this invention, the headrest connecting arm 13 is provided with multiple forward and backward sliding positions. The headrest forward and backward sliding assembly includes a sliding locking component 6 and a compression spring 12. The sliding locking component 6 engages with the headrest connecting arm 13 through the deformation and rebound of the compression spring 12, thereby achieving locking and unlocking of the forward and backward sliding. The headrest forward and backward sliding assembly also includes a tension spring 17. One end of the tension spring 17 is fixed to the forward and backward sliding component 10, and the other end is fixed to the headrest connecting arm 13. When the headrest forward and backward sliding assembly slides to the last position, the tension spring 17 automatically returns to its original position, causing the headrest forward and backward sliding assembly to automatically slide forward back to its original position. The sliding locking component 6 is installed on the forward and backward sliding component 10 through two circular pins 16 and moves back and forth in the slot holes of the forward and backward sliding component 10, thereby achieving locking and unlocking in a seesaw manner.

[0034] In this invention, the headrest connecting arm 13 has a front limit, and the headrest connecting arm limiting member 14 is a rear limit. When the front and rear sliding members 10 move forward to the front limit of the headrest connecting arm 13, the sliding locking member 6 in the front and rear sliding members 10 will collide with the front limit of the headrest connecting arm 13. Furthermore, as the front and rear sliding members 10 continue to move forward (the movement distance is the D-shaped hole and L-shaped hole of the front and rear sliding members 10), the sliding locking member 6 in the front and rear sliding members 10 cannot move due to the collision with the front limit of the headrest connecting arm 13, thus releasing the sliding locking member 6. After the sliding locking member 6 is released, the front and rear sliding members 10 can move backward. However, at this time, the sliding locking member 6 of the front and rear sliding members 10 cannot be locked, and it collides with the rear limit of the headrest connecting arm 13 as the sliding locking member 6 moves backward. Based on the above, when the front and rear sliding members 10 continue to move backward (the movement distance is the T-shaped hole and L-shaped hole of the front and rear sliding members 10), the sliding locking member 6 in the front and rear sliding members 10 cannot move due to the collision with the headrest connecting swing arm limiting member 14, thus returning the sliding locking member 6 to a locked state. According to the above, a recurring functional cycle is formed, that is, when the front and rear sliding members 10 move forward, they can lock three positions, each 10mm apart (locked using the sliding locking member 6). At this time, the front and rear sliding members 10 cannot move backward. After locking the third position, the front and rear sliding members 10 continue to move forward to enter the unlocking process. After the sliding locking member 6 of the front and rear sliding members 10 is unlocked, the sliding locking member 6 of the front and rear sliding members 10 cannot be locked. It is necessary for the front and rear sliding members 10 to reach a specific distance through the tension spring 17 before the sliding locking member 6 of the front and rear sliding members 10 restores its locking function, thus forming a functional cycle of the front and rear sliding assembly of the headrest composed of the front and rear sliding members 10.

[0035] This utility model also includes a headrest connecting arm limiting member 14, which is disposed on the headrest connecting arm 13 and is used to limit the final sliding distance of the headrest front and rear sliding assembly on the headrest connecting arm 13.

[0036] In this utility model, the headrest base 1 and the headrest connecting arm 13 are connected by a headrest base rotation shaft. The headrest base rotation shaft includes a rotation button 11, a compression spring 12, a rotation fitting part 15, a front and rear sliding part 10, a screw 9, the headrest base 1, and a rotation limit part 8. By pressing the rotation button 11, the movable screw is unlocked, thereby allowing the headrest connecting arm 13 to rotate around the second rotation axis. After releasing the rotation button 11, it automatically locks.

[0037] In this utility model, the headrest base 1 is provided with a headrest base decorative cover 2.

[0038] Working Principle: In practical implementation, users can adjust the headrest in multiple dimensions according to their needs. When adjusting the overall angle of the headrest frame, press the rotation button 11 at the rotating shaft of the headrest frame. At this time, the movable stud is unlocked, the limiting tooth structure separates from the rotating limiting part 8, and the entire headrest frame can rotate around the first rotation axis. During the rotation, the glass beads 7 on the sliding part 5 of the headrest frame will cooperate with the recesses on the inner side of the headrest frame 3. Each time it rotates to a recessed position, the glass beads 7 will be engaged in the recess, providing a sense of position. Users can choose a suitable angle according to comfort. After releasing the rotation button 11, under the action of the compression spring 12, the movable stud is reset, and the limiting tooth structure re-engages with the rotating limiting part 8, achieving automatic locking. To adjust the vertical position of the entire headrest frame, directly push the entire headrest frame. The sliding part 5 of the headrest frame slides up and down along the headrest connecting arm 13. The glass beads 7 cooperate with the recesses at different heights to complete the fixation of the vertical sliding position.

[0039] To adjust the headrest's forward and backward position, the user simply pushes the headrest's forward and backward sliding assembly. The sliding locking piece 6, under the action of the compression spring 12, engages with the forward and backward sliding locking piece on the headrest connecting arm 13. When the headrest slides forward or backward to the desired position, the sliding locking piece 6 engages in the corresponding locking piece to lock it in place. To unlock, continue pushing the sliding assembly; the compression spring 12 deforms, and the sliding locking piece 6 disengages from its current locking position, allowing it to slide to other positions. When the headrest's forward and backward sliding assembly reaches its final position, the tension spring 17 is stretched. Releasing the hand at this point causes the tension spring 17 to rebound, automatically sliding the headrest's forward and backward sliding assembly forward back to its original position. This operation is convenient and efficient. The headrest connecting arm limiting piece 14 effectively limits the sliding range of the headrest's forward and backward sliding assembly, preventing it from sliding off the headrest connecting arm 13.

[0040] To adjust the rotation of the headrest connecting arm 13, press the rotation button 11 at the headrest base's rotating shaft. This unlocks the movable stud within the shaft, allowing the headrest connecting arm 13 to rotate around the second rotation axis. After adjusting to a comfortable angle for the head and neck, release the rotation button 11. Under the action of the compression spring 12, the movable stud locks in place, fixing the position of the headrest connecting arm 13. The headrest base decorative cover 2 not only protects the internal structure but also enhances the overall aesthetics of the headrest. Through this combination of adjustment methods, users can easily obtain a headrest support state that suits their body characteristics and usage habits, significantly improving comfort and convenience during use.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dual-point rotating multi-functional lifting headrest, comprising an integral headrest frame, a headrest connecting swing arm (13), a headrest front-to-back sliding assembly, and a headrest base (1), characterized in that: The headrest frame is formed by the headrest frame (3), the headrest frame pressure strip (4) and the headrest frame sliding member (5) being fixedly connected by screws; the headrest frame is rotatably connected to the headrest connecting arm (13) through the headrest frame sliding member (5); the headrest front and rear sliding assembly is fitted on the headrest connecting arm (13) and can slide back and forth along the headrest connecting arm (13); the headrest connecting arm (13) is rotatably connected to the headrest base (1) through the front and rear sliding member (10); the headrest frame sliding member (5) forms a first rotation axis, and the headrest frame can slide up and down and rotate around the first rotation axis; the front and rear sliding member (10) forms a second rotation axis, and the headrest connecting arm (13) can rotate around the second rotation axis.

2. The dual-point rotating multi-functional lifting headrest according to claim 1, characterized in that: The headrest frame (3) has multiple recesses on its inner side. Two glass beads (7) are installed on the headrest frame slider (5), located on the upper and lower sides of the headrest frame slider (5) respectively. The glass beads (7) cooperate with the recesses.

3. The dual-point rotating multi-functional lifting headrest according to claim 1, characterized in that: The headrest frame slider (5) is provided with a limiting tooth structure on one side. The limiting tooth structure is provided with a rotation limiting member (8). The rotation limiting member (8) is connected to a movable stud. By pressing the rotation button (11), the movable stud is unlocked, thereby allowing the headrest frame to rotate around the first rotation axis. After releasing the rotation button (11), it automatically locks.

4. The dual-point rotating multi-functional lifting headrest according to claim 3, characterized in that: The rotation limiting component (8) has a nut pre-embedded in it, and the screw (9) is screwed into the nut to form the movable stud. The rotation button (11), compression spring (12), rotation fitting component (15), headrest frame sliding component (5), screw (9), headrest connecting swing arm (13) and rotation limiting component (8) together constitute the headrest frame rotation shaft.

5. The dual-point rotating multi-functional lifting headrest according to claim 1, characterized in that: The headrest connecting arm (13) is provided with multiple front and rear sliding positions. The headrest front and rear sliding assembly includes a sliding locking component (6) and a compression spring (12). The sliding locking component (6) cooperates with the locking of the headrest connecting arm (13) through the deformation and rebound of the compression spring (12) to realize the locking and unlocking of the front and rear sliding.

6. A dual-point rotating multi-functional lifting headrest according to claim 5, characterized in that: The headrest front and back sliding assembly also includes a tension spring (17). One end of the tension spring (17) is fixed on the front and back sliding member (10), and the other end is fixed on the headrest connecting swing arm (13). When the headrest front and back sliding assembly slides to the last position, the tension spring (17) automatically returns to its original position, so that the headrest front and back sliding assembly automatically slides forward and returns to its original position.

7. A dual-point rotating multi-functional lifting headrest according to claim 5, characterized in that: The sliding locking component (6) is installed on the front and rear sliding components (10) by two circular pins (16) and moves back and forth in the slot holes of the front and rear sliding components (10) to achieve locking and unlocking in a seesaw manner.

8. The dual-point rotating multi-functional lifting headrest according to claim 1, characterized in that: It also includes a headrest connecting arm limiting member (14), which is disposed on the headrest connecting arm (13) to limit the final sliding distance of the headrest front and rear sliding assembly on the headrest connecting arm (13).

9. A dual-point rotating multi-functional lifting headrest according to claim 1, characterized in that: The headrest base (1) and the headrest connecting arm (13) are connected by a headrest base rotating shaft. The headrest base rotating shaft includes a rotating button (11), a compression spring (12), a rotating fitting (15), a front and rear sliding member (10), a screw (9), the headrest base (1), and a rotating limiting member (8). By pressing the rotating button (11), the movable stud is unlocked, thereby allowing the headrest connecting arm (13) to rotate around the second rotating axis. After releasing the rotating button (11), it automatically locks.

10. A dual-point rotating multi-functional lifting headrest according to claim 1, characterized in that: The headrest base (1) is provided with a headrest base decorative cover (2).

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