Lifting adjusting mechanism

Abstract

The utility model discloses a lifting adjusting mechanism which at least comprises but not limited to a lifting assembly and an angle adjusting assembly, and a connecting part matched with the angle adjusting assembly is arranged in the lifting assembly. The lifting assembly can lift the whole angle adjusting assembly through the connecting part, and a fixing part matched with an external headrest is arranged in the angle adjusting assembly; the angle adjusting assembly can drive the fixing part to conduct angle deflection under the stress condition, so that the headrest can be matched with the pitching angle of the head of the human body. According to the scheme, the lifting assembly can drive the angle adjusting assembly to integrally ascend and descend, the fixing part connected with the headrest is arranged in the angle adjusting assembly, and the height adjustment and the pitching angle adjustment of the headrest can be achieved through the cooperation of the lifting assembly and the angle adjusting assembly; the whole mechanism can be adjusted in a targeted mode according to the requirements for different heights and different pitching angles of the neck of the human body, and the neck-adjustable neck-adjustable robot can be more comfortable in use.

Description

Technical Field

[0001] The utility model relates to the technical field of soft furniture accessories, in particular to a lifting and lowering adjustment mechanism. Background Art

[0002] Sofas have become a necessary piece of furniture for many families; the sofas sold on the market generally include three types: low-back sofas, high-back sofas and ordinary sofas between the first two; sofas can be classified according to their functions into functional sofas, fixed-back sofas, stepless automatic sofas, pneumatic sofas (ie: manual sofas), electric sofas and sofas with TVs, etc.

[0003] In the existing functional sofa design, in addition to the forward and backward pitch adjustment function of the extension function bracket, there is a lack of synchronous adjustment of the neck and head, which cannot meet the comprehensive comfort requirements of individual users. Therefore, more lifting and angle adjustment functions need to be set in the product to meet the needs of different users. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting adjustment mechanism to address the above-mentioned shortcomings, which solves the problem that in the design of functional sofas, in addition to the front and rear pitch adjustment function of the extension functional bracket, there is a lack of synchronous adjustment of the neck and head, which cannot meet the comfort requirements of individual users.

[0005] The utility model is realized by the following scheme:

[0006] A lifting and adjusting mechanism includes at least but not limited to a lifting assembly and an angle adjustment assembly, wherein the lifting assembly is provided with a connecting portion that cooperates with the angle adjustment assembly; the lifting assembly can lift the angle adjustment assembly as a whole through the connecting portion, and the angle adjustment assembly is provided with a fixing portion that cooperates with an external headrest; when subjected to force, the angle adjustment assembly can drive the fixing portion to deflect the angle so that the headrest can adapt to the pitch angle of the human head.

[0007] Based on the structure of the above-mentioned lifting and adjusting mechanism, the lifting assembly includes a support base, a guide column, a power motor, a connecting top plate and a lifting plate; the support base is provided with a support cavity for accommodating the guide column, the guide column is arranged in the support cavity, the power motor is arranged horizontally in the support base, and the connecting top plate is arranged above the guide column; a screw assembly is provided in the guide column, the lifting plate is connected to the screw assembly, and the screw assembly is connected to the power motor. Under the action of the power motor, the lifting plate can be driven to move through the screw assembly.

[0008] Based on the structure of the above-mentioned lifting and adjusting mechanism, the guide columns are provided with two, the connecting top plate is provided between the two guide columns, the guide columns are hollow, and the screw rod assembly is provided in the guide columns and the support base; the screw rod assembly includes a rotating screw rod and a connecting nut; the connecting nut is sleeved on the rotating screw rod, a first bearing is provided at the top position on the inner side of the guide column, a second bearing is provided on the support base, the rotating screw rod is provided between the first bearing and the second bearing, and a gear assembly is also provided on the rotating screw rod, the rotating screw rod is engaged with the output end of the power motor through the gear assembly, and the rotating screw rod is driven to rotate by the action of the power motor.

[0009] Based on the structure of the above-mentioned lifting and adjusting mechanism, a sliding sleeve is provided on the lifting plate, the sliding sleeve is connected to the connecting nut, a plurality of guide grooves are provided on the guide column, the guide grooves are arranged along the length direction of the guide column, and a plurality of guide protrusions cooperating with the guide grooves are provided on the sliding sleeve.

[0010] Based on the structure of the above-mentioned lifting and adjusting mechanism, a first connecting member is provided on both sides of the lifting plate, an extension plate is provided on both sides of the connecting top plate, a second connecting member is provided on the extension plate, and the positions of the first connecting member and the second connecting member are matched, and the first connecting member and the second connecting member form a connecting portion for connecting the angle adjustment component.

[0011] Based on the structure of the above-mentioned lifting and adjusting mechanism, the first connecting member includes a first fixing seat and a first sleeve; the first fixing seat is connected to the side wall of the lifting plate by bolts, and the first sleeve is fixedly arranged in the first fixing seat; the second connecting member includes a second sleeve and a second fixing seat, the second fixing seat is vertically arranged on the extension plate, and the second sleeve is vertically arranged on the second fixing seat.

[0012] Based on the structure of the above-mentioned lifting and adjusting mechanism, the angle adjustment assembly includes a supporting sleeve, an adjusting rod, a first connecting plate, a second connecting plate and a fixing part; the adjusting rod is sleeved in the supporting sleeve, and a connecting ear that cooperates with the first connecting plate is provided on the side wall of the supporting sleeve, and the first connecting plate is hinged to the connecting ear.

[0013] Based on the structure of the above-mentioned lifting and adjusting mechanism, the second connecting plate includes a first support plate and a second support plate; the first support plate and the second support plate are arranged at a predetermined angle, and the length of the second support plate is not less than the length of the first support plate; the end of the first support plate, the end of the second support plate and the connection between the first support plate and the second support plate are respectively provided with a first connecting hole, a second connecting hole and a third connecting hole; the fixing part is respectively provided with a first matching hole and a second matching hole.

[0014] Based on the structure of the above-mentioned lifting and adjusting mechanism, the first connecting hole is hinged to the end of the first connecting plate away from the connecting ear; the second connecting hole is hinged to the end of the adjusting rod and the first matching hole of the fixed part; the third connecting hole is hinged to the second matching hole; finally, the supporting sleeve, the adjusting rod, the first connecting plate, the second connecting plate and the fixed part form a connecting rod mechanism that can move relative to each other.

[0015] Based on the structure of the above-mentioned lifting and adjusting mechanism, the fixed part includes a fixed support tube, a first support plate and a second support plate; the first support plate is arranged perpendicular to the opening direction of the fixed support tube, and the second support plate is arranged parallel to the first support plate. A reinforcing rod is also arranged between the first support plate and the second support plate, and the first support plate and the second support plate are both connected to the outer wall of the fixed support tube.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. In this solution, the lifting assembly can drive the angle adjustment assembly to rise and fall as a whole, and the angle adjustment assembly is provided with a fixed part connected to the headrest. Through the cooperation of the lifting assembly and the angle adjustment assembly, the height adjustment and pitch angle adjustment of the headrest can be achieved; the entire mechanism can be adjusted in a targeted manner according to the different heights and pitch angles of the human neck, which can be more comfortable when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the lifting assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the angle adjustment component of the present invention at a first viewing angle;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the angle adjustment component of the present invention at a second viewing angle;

[0022] Description of the drawings: 1. Lifting assembly; 2. Angle adjustment assembly; 11. Support base; 12. Guide column; 13. Power motor; 14. Connecting top plate; 15. Lifting plate; 16. Support cavity; 17. Sliding sleeve; 18. Rotating screw; 19. Connecting nut; 110. First bearing; 111. Second bearing; 112. Gear assembly; 113. First connecting member; 114. Extension plate; 115. Second connecting member; 116. First fixing seat; 117. First sleeve; 118. Second sleeve; 119. Second fixing seat; 21. Support sleeve; 22. Adjustment rod; 23. First connecting piece; 24. Second connecting piece; 25. Fixing part; 26. Connecting ear; 27. First avoidance part; 28. Second avoidance part; 231. First support plate; 232. Second support plate; 233. First connecting hole; 234. Second connecting hole; 235. Third connecting hole; 251. First matching hole; 252. Second matching hole; 253. Fixed support tube; 254. First support piece; 255. Second support piece; 256. Reinforcing rod; 31. Insertion rod; 32. Headrest connecting piece. DETAILED DESCRIPTION

[0023] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0024] Any feature disclosed in this specification (including any appended claims and abstract), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0025] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features being referred to. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of such features.

[0027] Example 1

[0028] like Figures 1 to 4 As shown, the utility model provides a technical solution:

[0029] A lifting and adjustment mechanism includes at least but not limited to a lifting assembly 1 and an angle adjustment assembly 2. The lifting assembly 1 is provided with a connecting portion that cooperates with the angle adjustment assembly 2; the lifting assembly 1 can lift the angle adjustment assembly 2 as a whole through the connecting portion, and the angle adjustment assembly 2 is provided with a fixing portion 25 that cooperates with an external headrest; when subjected to force, the angle adjustment assembly 2 can drive the fixing portion 25 to deflect the angle, so that the headrest can adapt to the pitch angle of the human head.

[0030] Based on the above structure, the lifting component 1 in this solution can drive the angle adjustment component 2 to rise and fall as a whole, and the angle adjustment component 2 is provided with a fixing portion 25 connected to the headrest. Through the cooperation of the lifting component 1 and the angle adjustment component 2, the height adjustment and pitch angle adjustment of the headrest can be achieved; the entire mechanism can be targetedly adjusted according to the different heights and pitch angles of the human neck, making it more comfortable when used.

[0031] As an example, the lifting assembly 1 may include a support base 11, a guide column 12, a power motor 13, a connecting top plate 14 and a lifting plate 15; a support cavity 16 for accommodating the guide column 12 is provided in the support base 11, the guide column 12 is arranged in the support cavity 16, the power motor 13 is arranged horizontally in the support base 11, and the connecting top plate 14 is arranged above the guide column 12; a screw assembly is provided in the guide column 12, the lifting plate 15 is connected to the screw assembly, and the screw assembly is connected to the power motor 13. Under the action of the power motor 13, the lifting plate 15 can be driven to move by the screw assembly.

[0032] Based on the above structure, when the headrest needs to be raised or lowered, the power motor 13 is activated, thereby driving the screw assembly to move, causing the lifting plate 15 to move along the length direction of the guide column 12, and finally accurately driving the angle adjustment mechanism to move.

[0033] As an example, two guide posts 12 are provided, the connecting top plate 14 is provided between the two guide posts 12 , the guide posts 12 are hollow, and the screw assembly is provided in the guide posts 12 and the support base 11 ;

[0034] The screw assembly may include a rotating screw 18 and a connecting nut 19; the connecting nut 19 is sleeved on the rotating screw 18, a first bearing 110 is provided at the top position of the inner side of the guide column 12, and a second bearing 111 is provided on the support base. The rotating screw 18 is arranged between the first bearing 110 and the second bearing 111, and a gear assembly 112 is further provided on the rotating screw 18. The rotating screw 18 is engaged with the output end of the power motor 13 through the gear assembly 112, and the rotating screw 18 is driven to rotate by the action of the power motor 13;

[0035] A sliding sleeve 17 is provided on the lifting plate 15, and the sliding sleeve 17 is connected to the connecting nut 19. A plurality of guide grooves are provided on the guide column 12, and the guide grooves are arranged along the length direction of the guide column 12. The sliding sleeve 17 is provided with a plurality of guide protrusions that cooperate with the guide grooves.

[0036] Based on the above structure, when the rotating screw 18 is driven to rotate, the connecting nut 19 will be driven to rotate. At this time, since the sliding sleeve 17 is restricted in the guide groove by the guide protrusion, the sliding sleeve 17 can only be driven to move along the length direction of the guide column 12 to realize the entire lifting and lowering of the lifting plate 15.

[0037] As an example, a first connecting member 113 is provided on both sides of the lifting plate, an extension plate 114 is provided on both sides of the connecting top plate 14, and a second connecting member 115 is provided on the extension plate 114. The positions of the first connecting member 113 and the second connecting member 115 are matched, and the first connecting member 113 and the second connecting member 115 form a connecting part for connecting the angle adjustment component 2.

[0038] The angle adjustment assembly 2 is inserted into the first connecting member 113 and the second connecting member 115 in a plug-in manner;

[0039] Based on the above structure, since the positions of the first connecting member 113 and the second connecting member 115 match, when the angle adjustment component 2 is inserted into the first connecting member 113 and the second connecting member 115, the verticality of the angle adjustment component 2 can always be maintained and will not deform during movement.

[0040] As an example, the first connecting member 113 may include a first fixing seat 116 and a first sleeve 117; the first fixing seat 116 is connected to the side wall of the lifting plate by bolts, and the first sleeve 117 is fixedly arranged in the first fixing seat 116; the second connecting member 115 may be a second sleeve 118 and a second fixing seat 119, the second fixing seat 119 is vertically arranged on the extension plate 114, and the second sleeve 118 is vertically arranged on the second fixing seat 119.

[0041] Based on the above structure, by adopting the form of sleeves for the fixing portions 25 of the first connecting member 113 and the second connecting member 115 , the assembly of the entire angle adjustment assembly 2 is facilitated.

[0042] As an example, the angle adjustment assembly 2 may include a support sleeve 21, an adjustment rod 22, a first connecting piece 23, a second connecting piece 24, and a fixing portion 25; the adjustment rod 22 is sleeved in the support sleeve 21, and a connecting ear 26 that cooperates with the first connecting piece 23 is provided on the side wall of the support sleeve 21, and the first connecting piece 23 is hingedly connected to the connecting ear 26;

[0043] The second connecting piece 24 includes a first supporting plate 231 and a second supporting plate 232; the first supporting plate 231 and the second supporting plate 232 are arranged at a predetermined angle, and the length of the second supporting plate 232 is not less than the length of the first supporting plate 231; a first connecting hole 233, a second connecting hole 234, and a third connecting hole 235 are respectively provided at the end of the first supporting plate 231, the end of the second supporting plate 232, and the connection between the first supporting plate 231 and the second supporting plate 232; and a first matching hole 251 and a second matching hole 252 are respectively provided on the fixing portion 25;

[0044] The first connecting hole 233 is hinged to the end of the first connecting piece 23 away from the connecting ear 26; the second connecting hole 234 is hinged to the end of the adjusting rod 22 and the first matching hole 251 of the fixing portion 25; the third connecting hole 235 is hinged to the second matching hole 251; finally, the supporting sleeve 21, the adjusting rod 22, the first connecting piece 23, the second connecting piece 24 and the fixing portion 25 form a connecting rod mechanism that can move relative to each other.

[0045] Based on the above structure, when the adjustment rod 22 is driven to rise from the bottom to the top limit position, the fixing part 25 will change from a vertical state to a horizontal state, and the adjustment rod 22 can stop rising and falling during the rising process, that is, the fixing part 25 can support the headrest at any angle between the vertical and horizontal positions. During use, the adjustment rod 22 is first pulled out a certain distance, and then the head or neck applies a certain force to the headrest. When it reaches a comfortable position, it can stop. The connecting rod structure can adaptively support the head or neck.

[0046] As an example, the fixing part 25 may include a fixed support tube 253, a first support piece 254 and a second support piece 255; the first support piece 254 is arranged perpendicular to the opening direction of the fixed support tube 253, and the second support piece 255 is arranged parallel to the first support piece 254. A reinforcing rod 256 may also be arranged between the first support piece 254 and the second support piece 255. The first support piece 254 and the second support piece 255 are both connected to the outer wall of the fixed support tube 253.

[0047] Based on the above structure, by setting two parallel support plates, it is convenient to cooperate with other components to complete the angle adjustment operation. At the same time, a reinforcement rod 256 is set between the support plates to enhance the external support strength of the entire structure.

[0048] As an example, a curved first avoidance portion 27 is provided on the first connecting piece 23 , and a curved second avoidance portion 28 is provided on the second supporting plate 232 .

[0049] Based on the above structure, the entire structure is relatively compact. In order to prevent interference between the two parts during hinged rotation, a first avoidance portion 27 and a second avoidance portion 28 are respectively provided on the first connecting piece 23 and the second support plate 232 .

[0050] As an example, a connecting seat can also be inserted into the fixed support tube 253, and the connecting seat can include an insertion rod 31 and a headrest connecting piece 32. The size of the insertion rod 31 is adapted to the size of the fixed support tube 253, and the headrest connecting piece 32 is connected to the end of the insertion rod 31.

[0051] Based on the above structure, the headrest and the headrest connecting piece 32 are connected as one body, and the insertion rod 31 can be quickly inserted into the fixed support tube 253 to complete the cooperation with the connecting rod mechanism, and finally realize the angle adjustment function of the headrest.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting and adjusting mechanism, characterized in that: The invention at least includes but is not limited to a lifting assembly and an angle adjustment assembly, wherein the lifting assembly is provided with a connection portion cooperating with the angle adjustment assembly; the lifting assembly can lift the angle adjustment assembly as a whole through the connection portion, and the angle adjustment assembly is provided with a fixing portion cooperating with an external headrest; when subjected to force, the angle adjustment assembly can drive the fixing portion to deflect the angle so that the headrest can adapt to the pitch angle of the human head.

2. A lifting and adjusting mechanism according to claim 1, characterized in that: The lifting assembly includes a support base, a guide column, a power motor, a connecting top plate and a lifting plate; the support base is provided with a support cavity for accommodating the guide column, the guide column is arranged in the support cavity, the power motor is arranged horizontally in the support base, and the connecting top plate is arranged above the guide column; a screw assembly is provided in the guide column, the lifting plate is connected to the screw assembly, and the screw assembly is connected to the power motor. Under the action of the power motor, the lifting plate can be driven to move through the screw assembly.

3. A lifting and adjusting mechanism according to claim 2, characterized in that: The guide columns are provided with two, the connecting top plate is provided between the two guide columns, the guide columns are hollow, and the screw rod assembly is provided in the guide columns and the support base; the screw rod assembly includes a rotating screw rod and a connecting nut; the connecting nut is sleeved on the rotating screw rod, a first bearing is provided at the top position on the inner side of the guide column, a second bearing is provided on the support base, the rotating screw rod is provided between the first bearing and the second bearing, and a gear assembly is also provided on the rotating screw rod, the rotating screw rod is engaged with the output end of the power motor through the gear assembly, and the rotating screw rod is driven to rotate by the action of the power motor.

4. A lifting and adjusting mechanism according to claim 3, characterized in that: The lifting plate is provided with a sliding sleeve, which is connected to the connecting nut. The guide column is provided with a plurality of guide grooves, which are arranged along the length direction of the guide column. The sliding sleeve is provided with a plurality of guide protrusions that cooperate with the guide grooves.

5. The lifting and adjusting mechanism according to claim 4, characterized in that: A first connecting member is provided on both sides of the lifting plate, an extension plate is provided on both sides of the connecting top plate, and a second connecting member is provided on the extension plate. The positions of the first connecting member and the second connecting member are matched, and the first connecting member and the second connecting member form a connecting portion for connecting the angle adjustment component.

6. The lifting and lowering adjustment mechanism according to claim 5, characterized in that: The first connecting member includes a first fixing seat and a first sleeve; the first fixing seat is connected to the side wall of the lifting plate by bolts, and the first sleeve is fixedly arranged in the first fixing seat; the second connecting member includes a second sleeve and a second fixing seat, the second fixing seat is vertically arranged on the extension plate, and the second sleeve is vertically arranged on the second fixing seat.

7. The lifting and lowering adjustment mechanism according to claim 6, characterized in that: The angle adjustment assembly includes a support sleeve, an adjustment rod, a first connecting piece, a second connecting piece and a fixing portion; the adjustment rod is sleeved in the support sleeve, and a connecting ear that cooperates with the first connecting piece is provided on the side wall of the support sleeve, and the first connecting piece is hinged to the connecting ear.

8. The lifting and adjusting mechanism according to claim 7, characterized in that: The second connecting plate includes a first support plate and a second support plate; the first support plate and the second support plate are arranged at a predetermined angle, and the length of the second support plate is not less than the length of the first support plate; the end of the first support plate, the end of the second support plate and the connection between the first support plate and the second support plate are respectively provided with a first connecting hole, a second connecting hole and a third connecting hole; the fixing part is respectively provided with a first matching hole and a second matching hole.

9. The lifting and adjusting mechanism according to claim 8, characterized in that: The first connecting hole is hinged to the end of the first connecting plate away from the connecting ear; the second connecting hole is hinged to the end of the adjusting rod and the first matching hole of the fixing part; the third connecting hole is hinged to the second matching hole; finally, the supporting sleeve, the adjusting rod, the first connecting plate, the second connecting plate and the fixing part form a connecting rod mechanism that can move relative to each other.

10. The lifting and adjusting mechanism according to claim 9, characterized in that: The fixing part includes a fixed support tube, a first support plate and a second support plate; the first support plate is arranged perpendicular to the opening direction of the fixed support tube, the second support plate is arranged parallel to the first support plate, and a reinforcing rod is also arranged between the first support plate and the second support plate, and the first support plate and the second support plate are both connected to the outer side wall of the fixed support tube.

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