Lifting mechanism for seating and seating

Abstract

This utility model discloses a lifting structure for seating and a seating fixture, relating to the field of seating technology. The lifting structure for seating includes a stop bracket and an adjusting member. One end of the adjusting member is connected to an actuating member, and the other end of the adjusting member is connected to the stop bracket. The adjusting member is movable relative to the stop bracket in the vertical direction. The stop bracket has multiple limiting grooves arranged vertically. The adjusting member has an adjusting block adapted to the limiting grooves. A partition is provided between each pair of adjacent limiting grooves to separate them. A guide portion is formed on the partition to guide the adjusting block to move into the limiting groove. According to the lifting structure for seating of this utility model, the actuating member can only adjust one level at a time, preventing accidental operation and skipping levels, and improving the reliability of adjustment.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to a lifting structure for seating and a seating fixture. Background Technology

[0002] The relevant technology points out that the existing cycle gear adjustment structure without switches is difficult to accurately position and lock each gear during operation, especially when the armrest is quickly lifted. This can easily lead to gear deviation or unstable locking, thus affecting the user experience and the reliability of adjustment. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a lifting structure for seating, which limits the movement of the actuator to one level at a time, thereby improving the reliability of adjustment.

[0004] This utility model also proposes a seat with the above-mentioned lifting structure.

[0005] According to the first aspect of the present invention, a lifting structure for a seat includes a main body and an actuating component. The lifting structure includes a stop bracket and an adjusting component. The stop bracket is connected to the main body. One end of the adjusting component is connected to the actuating component, and the other end of the adjusting component is connected to the stop bracket. The adjusting component is movable relative to the stop bracket in the vertical direction. The stop bracket has a plurality of limiting grooves arranged in the vertical direction. The adjusting component has an adjusting block adapted to the limiting groove. A partition is provided between each two adjacent limiting grooves to separate the two adjacent limiting grooves. A guide portion is formed on the partition portion to guide the adjusting block to move into the limiting groove.

[0006] According to the lifting structure for seating of this utility model, by setting a partition, the action component can only be raised one level at a time. The partition prevents the adjustment block from directly crossing multiple limit slots, and can only be adjusted one level at a time, preventing misoperation and skipping levels. By setting a guide, it is ensured that the adjustment block can accurately fall into the target limit slot, avoiding the situation of insecure locking or inaccurate adjustment due to position deviation, thus improving the reliability of adjustment.

[0007] In some embodiments, the partition extends toward the lower of one of the two adjacent limiting grooves.

[0008] In this way, the baffle ensures that the limit block falls accurately into the corresponding limit groove. When the adjustment block comes into contact with the baffle, a sound will be made due to the collision. Therefore, the user can feel a clear shifting sound when adjusting, which enhances the user's operation feedback. The baffle extends towards the lower limit groove in each of the two adjacent limit grooves, which prevents the limit block from falling out of the limit groove and improves the stability and reliability of the lifting structure.

[0009] In some embodiments, a first connecting channel is connected between each pair of adjacent limiting slots, and the upper end of each first connecting channel is connected to a second connecting channel. The first connecting channel extends in a vertical direction, and the second connecting channel extends in an upward direction away from the limiting slot.

[0010] This prevents the adjustment block from adjusting multiple gears due to inertia or rapid lifting, thus avoiding the situation where the user skips the target gear. The second connecting channel extends outward at an angle, increasing the adjustment resistance and improving the accuracy of operation feedback and locking.

[0011] In some embodiments, a connecting surface is connected between each pair of adjacent limiting grooves, the connecting surface extends in the vertical direction, and the end face of the free end of the partition portion cooperates with the connecting surface to define the first connecting channel.

[0012] In this way, the end face of the free end and the connecting surface together define the first connecting channel, which improves the guidance and stability during the adjustment process. The limiting block can only move along the predetermined path in the first connecting channel and will not deviate to the left or right or get stuck, reducing the situation of operation difficulties or gear skipping caused by structural looseness.

[0013] In some embodiments, the guide portion is formed as a guide surface, the lower side surface of the partition portion is formed as a guide surface, and the guide surface extends toward the limiting groove in a downward direction.

[0014] In this way, the guide surface is formed as a plane with an inclined angle. When the user pulls the action component upward, the adjusting block will contact the lower surface of the partition. Guided by the partition, the adjusting block slides into the corresponding limiting groove, thus achieving the guiding effect on the adjusting block and enabling the adjusting block to accurately enter the corresponding limiting groove, thereby improving the reliability and stability of the lifting structure.

[0015] In some embodiments, the gear position bracket has a waiting slot located at the bottom of the gear position bracket, and a second connecting channel connects the waiting slot and the limiting slot. The waiting slot and the limiting slot are connected through the second connecting channel.

[0016] Thus, the waiting slot is located below multiple limiting slots. The waiting slot is the initial position of the adjusting component. The waiting slot and the limiting slot are connected by a second connecting channel. The waiting slot provides the initial stopping position for the adjusting component, which can also be regarded as the first gear, ensuring the stability and reliability of the lifting structure.

[0017] In some embodiments, the stop bracket forms a return channel that extends in a vertical direction and is connected to the waiting slot and a limiting slot located at the top.

[0018] In this way, the return channel is used to guide the adjustment block from the high position back to the lowest position (i.e., back to the waiting slot). The return channel extends in a straight line in the vertical direction, providing the shortest path for the adjustment block to return to the waiting slot, so that the adjustment block can quickly return to the waiting slot, improving the operating efficiency. The reset operation can be completed without an additional button, reducing the operation steps and improving the convenience of operation.

[0019] In some embodiments, the lifting structure further includes an elastic element located between the adjusting member and the actuating member, the elastic element having a force that causes the adjusting member to always move toward the limiting groove.

[0020] In this way, the elastic element is used to push the adjusting element closer to the limiting groove on the gear bracket, providing the adjusting element with active reset force, improving locking stability, and preventing the adjusting block from dislodging from the limiting groove due to vibration or external force, thereby improving the stability and reliability of the lifting structure.

[0021] In some embodiments, the gear position bracket includes two gear position brackets, which are symmetrically arranged, and the adjusting member is movably disposed between the two gear position brackets.

[0022] The seating according to a second aspect of the present invention includes: a main body, an actuating component, and a lifting structure according to the first aspect of the present invention, wherein the lifting structure is located between the main body and the actuating component, and the actuating component includes a headrest, a lumbar support, armrests, and a backrest.

[0023] According to the present invention, the seat has the same technical effect by setting the lifting structure of the first aspect. That is, by setting the partition, the action member can only be raised one level at a time. The partition prevents the adjustment block from directly crossing multiple limit slots and can only be adjusted one level at a time, preventing misoperation and skipping levels. By setting the guide, the adjustment block can be accurately placed into the target limit slot, avoiding the situation of insecure locking or inaccurate adjustment due to position deviation, thus improving the reliability of adjustment.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a handrail according to an embodiment of the present utility model;

[0026] Figure 2 yes Figure 1 The diagram shows an explosion of the handrail.

[0027] Figure 3 yes Figure 1 A schematic diagram of the handrail from another angle;

[0028] Figure 4 yes Figure 3 A schematic cross-sectional view of the handrail at point BB shown in the diagram;

[0029] Figure 5 yes Figure 3 A schematic cross-sectional view of the handrail at point CC is shown in the diagram.

[0030] Figure 6 yes Figure 2 The diagram shows the gear shift bracket.

[0031] Figure label:

[0032] 100. Handrails;

[0033] 10. Lifting structure;

[0034] 1. Gear support; 11. Limiting groove; 12. Partition; 13. Guide; 14. First connecting channel; 15. Second connecting channel; 16. Waiting slot; 17. Return channel; 18. Connecting surface;

[0035] 2. Adjusting component; 21. Adjusting block;

[0036] 3. Elastic components;

[0037] 20. Handrail body; 30. Handrail outer shell;

[0038] 40. Handrail inner shell; 50. Handrail top connector. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] The following is for reference. Figures 2-6A lifting structure 10 for a seat according to a first aspect embodiment of the present invention is described.

[0041] like Figures 2-6 As shown, the lifting structure 10 for a seat according to the first aspect of the present invention includes: a stop bracket 1 and an adjusting member 2.

[0042] Specifically, the seat includes a main body and an actuator. The stop bracket 1 is connected to the main body. One end of the adjusting member 2 is connected to the actuator, and the other end of the adjusting member 2 is connected to the stop bracket 1. The adjusting member 2 is movable relative to the stop bracket 1 in the vertical direction. The stop bracket 1 has multiple limiting grooves 11 arranged in the vertical direction. The adjusting member 2 has an adjusting block 21 that is adapted to the limiting groove 11. A partition 12 is provided between each two adjacent limiting grooves 11 to separate the two adjacent limiting grooves 11. A guide 13 is formed on the partition 12 to guide the adjusting block 21 to move into the limiting groove 11. Thus, by setting the partition 12, the action member can only be raised one level at a time. The partition 12 prevents the adjustment block 21 from directly crossing multiple limit slots 11, and can only be adjusted one level at a time, preventing misoperation and skipping levels. By setting the guide 13, it is ensured that the adjustment block 21 can accurately fall into the target limit slot 11, avoiding the occurrence of insecure locking or inaccurate adjustment due to position deviation.

[0043] It is understood that the gear position bracket 1 is connected to the main body, the upper end of the adjusting member 2 is connected to the actuating member, and the lower end of the adjusting member 2 is movably connected to the gear position bracket 1. The adjusting member 2 is movable relative to the gear position bracket 1 in the vertical direction. The lower end of the adjusting member 2 has an adjusting block 21, that is, the adjusting block 21 is movable between multiple limiting grooves 11 to adjust the relative position between the adjusting member 2 and the gear position bracket 1. The shape of the adjusting block 21 is adapted to the shape of the limiting groove 11. A partition 12 is provided between any two adjacent limiting grooves 11. The partition 12 restricts the adjusting member 2 to move up one gear at a time. The partition 12 prevents the adjusting block 21 from directly crossing multiple limiting grooves 11. Only one limiting groove 11 can be adjusted at a time, preventing misoperation and gear skipping, and improving the reliability of adjustment.

[0044] Reference Figures 2-6 As shown, the gear position bracket 1 has five limiting grooves 11 arranged in the vertical direction. The adjusting member 2 is movably connected to the gear position bracket 1. A partition 12 is provided between any two adjacent limiting grooves 11. A guide 13 is formed on the lower surface of the partition 12. The guide 13 guides the adjusting block 21 to move toward the limiting groove 11, so that the limiting block can accurately enter the corresponding limiting groove 11 during the sliding process, which improves the user's operating feel and reliability.

[0045] According to the lifting structure 10 for seating according to the present utility model embodiment, the partition part 12 is set to limit the action member to only one level at a time. The partition part 12 prevents the adjustment block 21 from directly crossing multiple limit slots 11, and can only adjust one level at a time, preventing misoperation and skipping levels. By setting the guide part 13, it is ensured that the adjustment block 21 can accurately fall into the target limit slot 11, avoiding the situation of insecure locking or inaccurate adjustment due to position deviation, thus improving the reliability of adjustment.

[0046] In some embodiments of this utility model, such as Figure 6 As shown, the baffle 12 extends toward the lower limit groove 11 of every two adjacent limit grooves 11. It is understood that the baffle 12 ensures that the limit block accurately falls into the corresponding limit groove 11. When the adjusting block 21 contacts the baffle 12, a sound is emitted due to the collision, so the user can feel a clear shifting sound during adjustment, enhancing the user's operational feedback. The baffle 12 extending toward the lower limit groove 11 of every two adjacent limit grooves 11 prevents the limit block from falling out of the limit groove 11, improving the stability and reliability of the lifting structure 10.

[0047] In some embodiments of this utility model, a first connecting channel 14 connects each pair of adjacent limiting slots 11. The upper end of each first connecting channel 14 is connected to a second connecting channel 15. The first connecting channel 14 extends vertically, and the second connecting channel 15 extends upwards in a direction away from the limiting slot 11. It is understood that by providing a first connecting channel 14 between each pair of adjacent limiting slots 11, the two limiting slots 11 are not completely isolated; they are connected by a first connecting channel 14. The top of each first connecting channel 14 is connected to a second connecting channel 15. The second connecting channel 15 extends at an angle, thereby preventing the adjusting block 21 from adjusting multiple gears due to inertia or rapid lifting, thus avoiding the user skipping the target gear. The outward angle of the second connecting channel 15 increases the adjustment resistance and improves the accuracy of operation feedback and locking.

[0048] Reference Figure 6 As shown, a first connecting channel 14 is connected between any two adjacent limiting grooves 11. The first connecting channel 14 extends in the vertical direction. The lower end of the second connecting channel 15 is connected to the upper end of the first connecting channel 14 and is in communication with it. The second connecting channel 15 extends in the direction away from the limiting groove 11 from bottom to top.

[0049] In some embodiments of this utility model, a connecting surface 18 is connected between every two adjacent limiting grooves 11. The connecting surface 18 extends in the vertical direction, and the end face of the free end of the partition part 12 cooperates with the connecting surface 18 to define the first connecting channel 14. It can be understood that one end of the partition part 12 is fixed on the gear bracket 1, and the other end of the partition part 12 is a free end. The end face of the free end and the connecting surface 18 are arranged at intervals in the horizontal direction. The end face of the free end and the connecting surface 18 together define the first connecting channel 14, which improves the guidance and stability during the adjustment process. The limiting block can only move along a predetermined path in the first connecting channel 14 and will not deviate to the left or right or get stuck, reducing the situation of operation difficulties or gear skipping caused by structural looseness.

[0050] In some embodiments of this utility model, the guide portion 13 is formed as a guide surface, and the lower side surface of the partition portion 12 is formed as a guide surface. The guide surface extends downward toward the limiting groove 11. It can be understood that the guide surface is formed as a plane with an inclined angle. When the user pulls the action component upward, the adjusting block 21 will contact the lower surface of the partition portion 12. Guided by the partition portion 12, the adjusting block 21 slides into the corresponding limiting groove 11, thus achieving the guiding effect on the adjusting block 21. This allows the adjusting block 21 to accurately enter the corresponding limiting groove 11, improving the reliability and stability of the lifting structure 10.

[0051] Reference Figure 6 As shown, a guide surface is formed on the lower surface of the partition portion 12, and the guide surface extends obliquely toward the limiting groove 11 in a downward direction.

[0052] In some embodiments of this utility model, the stop bracket 1 has a waiting groove 16 located at the bottom of the stop bracket 1. A second connecting channel 15 connects the waiting groove 16 and the limiting groove 11. The waiting groove 16 and the limiting groove 11 are connected through the second connecting channel 15. It can be understood that the waiting groove 16 is located below the multiple limiting grooves 11. The waiting groove 16 is the initial position of the adjusting member 2. The waiting groove 16 and the limiting groove 11 are connected through the second connecting channel 15. The waiting groove 16 provides an initial stopping position for the adjusting member 2, which can also be regarded as the first stop, ensuring the stability and reliability of the lifting structure 10.

[0053] Reference Figure 6 As shown, the stop bracket 1 has a waiting slot 16 and five limiting slots 11. The waiting slot 16 is located at the bottom of the five limiting slots 11, and the lowest limiting slot 11 is connected to the waiting slot 16 through a second connecting channel 15.

[0054] In some embodiments of this utility model, the stop bracket 1 forms a return channel 17, which extends vertically and connects to the waiting slot 16 and a limiting slot 11 located at the top. It is understood that the return channel 17 guides the adjusting block 21 from the high position back to the lowest position (i.e., back to the waiting slot 16). The return channel 17 extends linearly vertically, providing the shortest path for the adjusting block 21 to return to the waiting slot 16, allowing the adjusting block 21 to quickly return to the waiting slot 16, improving operational efficiency. The reset operation can be completed without an additional button, reducing operational steps and improving operational convenience.

[0055] Reference Figure 6 As shown, the return channel 17 extends in a straight line in the vertical direction. The lower end of the return channel 17 is connected to the waiting slot 16, and the upper end of the return channel 17 is connected to the topmost limiting slot 11.

[0056] In some embodiments of this utility model, the lifting structure 10 further includes an elastic element 3, which is located between the adjusting element 2 and the actuating element. The elastic element 3 has a force that causes the adjusting element 2 to always move toward the limiting groove 11. It can be understood that the elastic element 3 is used to push the adjusting element 2 toward the limiting groove 11 on the stop bracket 1, providing an active reset force for the adjusting element 2, improving locking stability, and preventing the adjusting block 21 from disengaging from the limiting groove 11 due to vibration or external force, thereby improving the stability and reliability of the lifting structure 10.

[0057] Reference Figure 2 and Figure 5 As shown, the elastic element 3 includes two elastic elements 3 arranged at intervals. The upper ends of both elastic elements 3 are connected to the actuating element, and the lower ends of both elastic elements 3 are connected to the adjusting element 2.

[0058] In some embodiments of this utility model, the gear shift bracket 1 includes two symmetrically arranged gear shift brackets 1, and the adjusting member 2 is movably disposed between the two gear shift brackets 1. It can be understood that the two gear shift brackets 1 are symmetrically arranged, the limiting grooves 11 are arranged one-to-one, and the adjusting member 2 has two symmetrically arranged adjusting blocks 21, one of which is located in one limiting groove 11 corresponding to the two gear shift brackets 1, and the other of which is located in the other limiting groove 11 corresponding to the two gear shift brackets 1.

[0059] The seating according to a second aspect of the present invention includes: a main body, an actuating component, and a lifting structure 10 according to the first aspect of the present invention described above. The lifting structure 10 is located between the main body and the actuating component, and the actuating component includes a headrest, a lumbar support, armrests, and a backrest.

[0060] According to the embodiment of the present utility model, the seat has the same technical effect by setting the lifting structure 10 of the first aspect embodiment. That is, by setting the partition part 12, the action member can only be raised one level at a time. The partition part 12 prevents the adjustment block 21 from directly crossing multiple limit slots 11 and can only be adjusted one level at a time, preventing misoperation and skipping levels. By setting the guide part 13, it is ensured that the adjustment block 21 can accurately fall into the target limit slot 11, avoiding the situation of insecure locking or inaccurate adjustment due to position deviation, thus improving the reliability of adjustment.

[0061] The following will refer to Figures 1-6 This invention describes a seating device according to a specific embodiment of the present invention.

[0062] Reference Figure 1 The action component is described using handrail 100 as an example.

[0063] Specifically, such as Figures 1-6 As shown, the handrail 100 includes a handrail body 20, a handrail outer shell 30, a handrail inner shell 40, and a handrail top connector 50. A lifting structure 10 is disposed within the handrail inner shell 40. The lifting structure 10 includes a stop bracket 1 and an adjusting member 2. The stop bracket 1 has five limiting grooves 11 arranged vertically. The adjusting member 2 is movably connected to the stop bracket 1. A partition 12 is provided between any two adjacent limiting grooves 11. A guide 13 is formed on the lower surface of the partition 12, guiding the adjusting block 21 to move towards the limiting groove 11. The partition 12 extends towards the lower limiting groove 11 of each pair of adjacent limiting grooves 11. A waiting groove 16 is located at the bottom of the five limiting grooves 11, and the lowest limiting groove 11 is connected to the waiting groove 16 via a second connecting channel 15.

[0064] A first connecting channel 14 is connected between any two adjacent limiting slots 11. The first connecting channel 14 extends vertically. The lower end of a second connecting channel 15 is connected to and communicates with the upper end of the first connecting channel 14. The second connecting channel 15 extends upwards in a direction away from the limiting slots 11. A guide surface is formed on the lower surface of the partition 12, and the guide surface extends obliquely downwards in a direction towards the limiting slots 11. The end face of the free end of the partition 12 cooperates with the connecting surface 18 to define the first connecting channel 14. A return channel 17 extends linearly vertically. The lower end of the return channel 17 communicates with the waiting slot 16, and the upper end of the return channel 17 communicates with the topmost limiting slot 11. Two elastic elements 3 are arranged at intervals. The upper ends of both elastic elements 3 are connected to the actuating element, and the lower ends of both elastic elements 3 are connected to the adjusting element 2. The stop bracket 1 includes two brackets, which are symmetrically arranged. The adjusting member 2 is movably disposed between the two stop brackets 1. The top connector 50 of the handrail is connected to the outer shell 30 of the handrail by fasteners, and the upper end of the elastic member 3 is connected to the top connector 50 of the handrail.

[0065] The outer shell of the handrail 30 is made of plastic, the outer shell of the handrail 30 is made of metal, the stop bracket 1 is made of plastic, and the adjusting part 2 is made of metal or plastic.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lifting structure for a seat, characterized by, The seat includes a main body and an actuator. The lifting structure (10) includes a stop bracket (1) and an adjusting member (2). The stop bracket (1) is connected to the main body. One end of the adjusting member (2) is connected to the actuator. The other end of the adjusting member (2) is connected to the stop bracket (1). The adjusting member (2) is movable relative to the stop bracket (1) in the vertical direction. The stop bracket (1) has a plurality of limiting grooves (11) arranged in the vertical direction. The adjusting member (2) has an adjusting block (21) adapted to the limiting groove (11). A partition (12) is provided between each two adjacent limiting grooves (11) to separate the two adjacent limiting grooves (11). A guide (13) is formed on the partition (12). The guide (13) is used to guide the adjusting block (21) to move toward the limiting groove (11).

2. The lifting structure for a seat according to claim 1, wherein The partition (12) extends toward the lower one of the two adjacent limiting grooves (11).

3. The lifting structure for a seat according to claim 2, wherein A first connecting channel (14) is connected between each pair of adjacent limiting grooves (11), and the upper end of each first connecting channel (14) is connected to a second connecting channel (15). The first connecting channel (14) extends in the vertical direction, and the second connecting channel (15) extends in the upward direction away from the limiting groove (11).

4. The lifting structure for a seat according to claim 3, wherein A connecting surface (18) is connected between each pair of adjacent limiting grooves (11). The connecting surface (18) extends in the vertical direction. The end face of the free end of the partition (12) cooperates with the connecting surface (18) to define the first connecting channel (14).

5. The lifting structure for a seat according to claim 4, wherein The guide portion (13) is formed as a guide surface, and the lower side of the partition portion (12) is formed as a guide surface. The guide surface extends in the direction from top to bottom toward the limiting groove (11).

6. The lift structure for a seat as claimed in claim 1, wherein The stop bracket (1) has a waiting slot (16) located at the bottom of the stop bracket (1). A second connecting channel (15) connects the waiting slot (16) and the limiting slot (11). The waiting slot (16) and the limiting slot (11) are connected through the second connecting channel (15).

7. The lifting structure for a seat according to claim 6, wherein The stop bracket (1) forms a return channel (17), which extends in the vertical direction and connects the waiting slot (16) to a limiting slot (11) located at the top.

8. The lifting structure for a seat according to any one of claims 1 to 7, characterized in that, Also includes: An elastic element (3) is located between the adjusting element (2) and the actuating element, and the elastic element (3) has a force that causes the adjusting element (2) to always move toward the limiting groove (11).

9. The lifting structure for a seat according to any one of claims 1 to 7, characterized in that, The gear position bracket (1) includes two, which are symmetrically arranged, and the adjusting member (2) is movably disposed between the two gear position brackets (1).

10. A seat furniture, characterized in that, include: The main body, the action piece and the lifting structure (10) according to any one of claims 1-9, the lifting structure (10) is located between the main body and the action piece, and the action piece comprises a headrest, a waist support, an armrest and a backrest.

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