Four-way waist rest of seat

Abstract

A seat four-direction waist rest comprises a waist support, a first fixing seat, a second fixing seat, a supporting piece and a fixing piece, a connecting part is arranged between the first fixing seat and / or the second fixing seat and the waist support, the first fixing seat and / or the second fixing seat are / is fixed to the waist support through the connecting part, and the supporting piece is arranged between the first fixing seat and the second fixing seat. The first fixing base and the second fixing base are connected with the supporting piece in a clamped mode through fixing pieces. According to the four-way waist rest of the seat, the connecting function and the threading function are integrated on the first fixing seat and the second fixing seat, a first inhaul cable line plate and a second inhaul cable line plate of a traditional four-way waist rest can be omitted, parts of the four-way waist rest are reduced, the structure of the four-way waist rest is simplified, the four-way waist rest is more convenient to assemble, and the service life of the four-way waist rest is prolonged. Meanwhile, the manufacturing cost is reduced; the design of the gasket is added, so that the fixing seat and the supporting piece are clamped on the fixing piece more firmly, connection between the fixing seat and the supporting piece is more reliable, and looseness is not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waist rest, especially seat four -way waist rest. BACKGROUND

[0002] A four-way waist rest supporting structure is disclosed in Chinese patent document No. CN218661484U on March 21, 2023, which includes a waist support, a first fixed plate, a second fixed plate, a support part, and a fixed component. The first fixed plate is fixedly arranged at the top of the waist support, and the first fixed plate is arranged at the bottom of the waist support. The support part is arranged between the first fixed plate and the second fixed plate. The first fixed plate, the second fixed plate, and the support part are clamped and connected through the fixed component. This four-way waist rest sets a first cable plate and a second cable plate. The first cable plate is fixed on the first fixed plate by a buckle, and the second cable plate is fixed on the second fixed plate by a buckle. The waist support is provided with a first hook, and the first cable plate is provided with a connecting part matched with the first hook. The connection between the first cable plate and the waist support is realized through the cooperation of the first hook and the connecting part, and the connection between the first fixed plate and the waist support is realized. The first cable plate and the second cable plate are respectively provided with guide holes for threading the first and second cables. The above structure makes the four-way waist rest have many parts, resulting in complex structure, inconvenient assembly, and high cost. In addition, the first fixed plate, the second fixed plate, and the support part are clamped and connected through the fixed component, the connection is unreliable, and loosening is easy to occur.

[0003] Therefore, it is necessary to make further improvements. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a seat four -way waist rest which is simple in structure, convenient to assemble, low in cost, reliable in connection, and high in practicability, so as to overcome the shortcomings of the prior art.

[0005] A seat four -way waist rest designed for this purpose includes a waist support, characterized in that it further includes a first fixed seat, a second fixed seat, a support part, and a fixed part. A connecting part is arranged between the first fixed seat and / or the second fixed seat and the waist support. The first fixed seat and / or the second fixed seat are fixed on the waist support through the connecting part. The support part is arranged between the first fixed seat and the second fixed seat. The first fixed seat and the second fixed seat are clamped and connected with the support part through the fixed part.

[0006] One end of the support part is provided with a first hook part, and the other end is provided with a second hook part. A first gasket is arranged on the first fixed seat, and a second gasket is arranged on the second fixed seat. A clamping groove is arranged on the fixed part. The first hook part, the first fixed seat, and the first gasket are clamped on the corresponding clamping groove. The second hook part, the second fixed seat, and the second gasket are clamped on the corresponding clamping groove.

[0007] The first fixed seat is provided with a first groove on one side, the second fixed seat is provided with a second groove on one side, the first hook part is at least partially arranged on the first groove, and the second hook part is at least partially arranged on the second groove.

[0008] The other side of the first fixed seat is provided with a third groove, the other side of the second fixed seat is provided with a fourth groove, the first gasket is arranged on the third groove, and the second gasket is arranged on the fourth groove.

[0009] The connecting part comprises a clamping column arranged on the first fixed seat and / or the second fixed seat and a clamping groove arranged on the waist support, and the clamping column is clamped into the clamping groove.

[0010] The first power device is further provided with a first pull wire and a second pull wire, the first fixed seat is provided with a first threading groove, the second fixed seat is provided with a second threading groove, the first pull wire is connected to the first sliding plate after passing through the first threading groove, and the second pull wire is connected to the first sliding plate after passing through the second threading groove.

[0011] The second power device, the second sliding plate and the pulley are further arranged, the third pull wire is arranged on the second power device, the third pull wire is arranged on the pulley and connected to the first sliding plate after sequentially passing through the first sliding plate and the second sliding plate.

[0012] The mounting groove is arranged on the second sliding plate, the pulley is arranged on the mounting groove, supporting positions are arranged on two sides of the mounting groove, supporting convex points are arranged on two sides of the pulley, and the pulley is supported on the supporting positions through the supporting convex points.

[0013] The elastic member is arranged between the first sliding plate and the second sliding plate, the first sliding plate and the second sliding plate are connected through the elastic member, the guiding grooves are arranged on the first sliding plate and the second sliding plate, the supporting member passes through the guiding grooves, and the first sliding plate and the second sliding plate are slidably arranged on the supporting member through the guiding grooves.

[0014] The first groove and the second groove are respectively provided with reinforcing ribs.

[0015] The connecting part is arranged between the first fixed seat and / or the second fixed seat and the waist support, the first fixed seat and / or the second fixed seat are fixed on the waist support through the connecting part, the first threading groove is arranged on the first fixed seat, the second threading groove is arranged on the second fixed seat, the first threading groove and the second threading groove are respectively used for threading the first pull wire and the second pull wire, the connecting function and the threading function are integrated on the first fixed seat and the second fixed seat, the first pull cable plate and the second pull cable plate of the traditional four-way waist support can be cancelled, the parts of the four-way waist support are reduced, the structure of the four-way waist support is simplified, the assembly of the four-way waist support is more convenient, and the manufacturing cost is reduced.

[0016] In addition, the first hook portion, the first fixing seat and the first gasket are clamped on the corresponding clamping grooves, the second hook portion, the second fixing seat and the second gasket are clamped on the corresponding clamping grooves, the design of the gasket is increased, the fixing seat and the support are clamped more firmly on the fixing part, the connection between the fixing seat and the support is more reliable, and loosening is not prone to occur, thereby improving the stability of the four-way waist rest structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the four-way waist rest in an embodiment of the utility model.

[0018] Figure 2 It is a whole structure schematic view of the four-way waist rest in an embodiment of the utility model.

[0019] Figure 3 It is an exploded structure schematic view of the four-way waist rest in an embodiment of the utility model.

[0020] Figure 4 It is a sectional view of the four-way waist rest in an embodiment of the utility model.

[0021] Figure 5 It is a sectional view of the four-way waist rest in an embodiment of the utility model. Figure 4 It is an enlarged structure schematic view of the position A.

[0022] Figure 6 It is a sectional view of the four-way waist rest in another position in an embodiment of the utility model.

[0023] Figure 7 It is an enlarged structure schematic view of the position B. Figure 6

[0024] Figure 8 It is a whole structure schematic view of the first fixing seat or the second fixing seat in an embodiment of the utility model.

[0025] Figure 9 It is a whole structure schematic view of the first fixing seat or the second fixing seat in another position in an embodiment of the utility model.

[0026] Figure 10 It is a whole structure schematic view of the fixing part in an embodiment of the utility model.

[0027] Figure 11 It is an exploded structure schematic view of the first power device or the second power device in the first application example in an embodiment of the utility model.

[0028] Figure 12 It is an exploded structure schematic view of the first power device or the second power device in the second application example in an embodiment of the utility model.

[0029] Figure 13 ​It is the exploded structural schematic view of the first power device or the second power device in the third application example of the first embodiment of the utility model. DETAILED DESCRIPTION

[0030] The utility model will be further described in connection with the drawings and embodiments.

[0031] Reference Figures 1-13 , the seat four direction waist rest, including waist support 1, first fixed seat 2, second fixed seat 3, support 4 and fixed part 5, be provided with the connecting portion between first fixed seat 2 and waist support 1, first fixed seat 2 is fixed in the top of waist support 1 through the connecting portion, support 4 is arranged between first fixed seat 2 and second fixed seat 3, first fixed seat 2, second fixed seat 3 respectively with support 4 are clamped by fixed part 5, fixed part 5 is fixed on the chair by screw;First fixed seat 2, second fixed seat 3, support 4 and fixed part 5 constitute the support structure.

[0032] One end of support 4 is provided with first hook portion 6, the other end is provided with second hook portion 7, first fixed seat 2 is provided with first gasket 8, second fixed seat 3 is provided with second gasket 9, fixed part 5 is provided with clamping groove 10, first hook portion 6, first fixed seat 2 and first gasket 8 are clamped on the corresponding clamping groove 10, second hook portion 7, second fixed seat 3 and second gasket 9 are clamped on the corresponding clamping groove 10.

[0033] Fixed part 5 is provided with cylinder 32, and first hook portion 6 and second hook portion 7 are respectively hooked on the corresponding cylinder 32.

[0034] One side of first fixed seat 2 is provided with first recess 11, and one side of second fixed seat 3 is provided with second recess 12, first hook portion 6 is at least partially arranged on first recess 11, and second hook portion 7 is at least partially arranged on second recess 12;This structure more fully utilizes the space, so that the structure of four direction waist rest is more compact.

[0035] The other side of first fixed seat 2 is provided with third recess 13, and the other side of second fixed seat 3 is provided with fourth recess 14, first gasket 8 is arranged on third recess 13, and second gasket 9 is arranged on fourth recess 14, and this structure also more fully utilizes the space, so that the structure of four direction waist rest is more compact.

[0036] Support 4 is provided with two, and the two supports 4 are respectively arranged at intervals between first fixed seat 2 and second fixed seat 3.

[0037] The connecting portion includes clamping column 15 arranged on first fixed seat 2 and clamping groove 16 arranged on waist support 1, and clamping column 15 is clamped into clamping groove 16, so that first fixed seat 2 is fixed on the top of waist support 1.

[0038] In order to make the waist support 1 better fit the human waist, effectively improve the comfort, the waist support 1 is provided with a plurality of spaced through holes 33, and the through holes 33 are waist-shaped holes.

[0039] Further comprising a first power device 17 and a first sliding plate 18, the first power device 17 is provided with a first pull wire 19 and a second pull wire 20, the first fixed seat 2 is provided with a first threading groove 21, the second fixed seat 3 is provided with a second threading groove 22, the first pull wire 19 is connected to the first sliding plate 18 after passing through the first threading groove 21, and the second pull wire 20 is connected to the first sliding plate 18 after passing through the second threading groove 22.

[0040] The first pull wire 19 is provided with a spring 35, which can automatically adjust the pull wire stroke and facilitate the length size of the pull wire tolerance.

[0041] Further comprising a second power device 23, a second sliding plate 24 and a pulley 25, the second power device 23 is provided with a third pull wire 26, the third pull wire 26 is wound around the pulley 25 and connected to the first sliding plate 18 after passing through the first sliding plate 18 and the second sliding plate 24 in turn.

[0042] The first power device 17 and the second power device 23 are quick adjustment controllers with stepless adjustment locking function, and the first power device 17 and the second power device 23 are fixed on the chair.

[0043] The first power device 17 and the second power device 23 comprise a first knob 36 and a worm gear 37, the first knob 36 is connected to the worm gear 37, the first pull wire 19 and the second pull wire 20 are wound around the worm gear 37 of the first power device 17, and the third pull wire 26 is wound around the worm gear 37 of the second power device 23, so that the pull wire can be retracted or extended by rotating the first knob 36.

[0044] Alternatively, the first power device 17 and the second power device 23 comprise a second knob 38 and a first rotating wheel 39, the second knob 38 is connected to the first rotating wheel 39, the first pull wire 19 and the second pull wire 20 are wound around the first rotating wheel 39 of the first power device 17, and the third pull wire 26 is wound around the first rotating wheel 39 of the second power device 23, so that the pull wire can be retracted or extended by rotating the second knob 38.

[0045] Alternatively, the first power device 17 and the second power device 23 comprise a handle 40 and a second rotating wheel 41, the handle 40 is connected to the second rotating wheel 41, the first pull wire 19 and the second pull wire 20 are wound around the second rotating wheel 41 of the first power device 17, and the third pull wire 26 is wound around the second rotating wheel 41 of the second power device 23, so that the pull wire can be retracted or extended by rotating the handle 40.

[0046] The second sliding plate 24 is provided with a mounting groove 27, the pulley 25 is mounted on the mounting groove 27, supporting positions 28 are arranged on both sides of the mounting groove 27 respectively, supporting convex points 29 are arranged on both sides of the pulley 25 respectively, and the pulley 25 is supported on the supporting positions 28 through the supporting convex points 29, so that the pulley 25 is fixed on the second sliding plate 24. The pulley of the conventional structure is fixed on the second sliding plate, and the first pull wire and the second pull wire are also connected to the second sliding plate, so that the transmission of the pulley and the pull wire is unstable; the pulley of the structure is fixed on the second sliding plate, and the first pull wire and the second pull wire are connected to the first sliding plate, so that the transmission of the pulley and the pull wire is more stable.

[0047] The first sliding plate 18 and the second sliding plate 24 are provided with elastic pieces 30, the elastic pieces 30 are spring sheets, the first sliding plate 18 and the second sliding plate 24 are connected through the elastic pieces 30, the first sliding plate 18 and the second sliding plate 24 are provided with guide grooves 34, the supporting piece 4 passes through the guide grooves 34, and the first sliding plate 18 and the second sliding plate 24 are slidably arranged on the supporting piece 4 through the guide grooves 34.

[0048] The first recess 11 and the second recess 12 are respectively provided with reinforcing ribs 31, the reinforcing ribs 31 can improve the structural strength of the first fixed seat 2 and the second fixed seat 3, and ensure the structural stability of the first fixed seat 2 and the second fixed seat 3.

[0049] The first power device 17 moves up and down, and the second power device 23 moves forward and backward; when the first power device 17 moves upward, the first pull wire 19 is reeled in, and the second pull wire 20 is unwound, so as to drive the first sliding plate 18 to rise and synchronously drive the second sliding plate 24 to rise; when the first power device 17 moves downward, the first pull wire 19 is unwound, and the second pull wire 20 is reeled in, so as to drive the first sliding plate 18 to descend and synchronously drive the second sliding plate 24 to descend, so as to adjust the height of the waist of different people; when the second power device 23 drives the third pull wire 26 to work, the first sliding plate 18 and the second sliding plate 24 narrow the elastic piece 30 and push out to the direction of the waist support 1; when the second power device 23 drives the third pull wire 26 to work, the first sliding plate 18 and the second sliding plate 24 flatten the elastic piece 30 and make the waist support 1 to be retracted, so as to adjust the comfort of the waist of the human body.

[0050] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification only illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A four-way lumbar support for a seat comprising a lumbar support (1) characterised in that: The waist support (1) is provided with a first fixed seat (2), a second fixed seat (3), a supporting piece (4) and a fixing piece (5), the first fixed seat (2) and / or the second fixed seat (3) are provided with a connecting part between the first fixed seat (2) and / or the second fixed seat (3) and the waist support (1), the first fixed seat (2) and / or the second fixed seat (3) are fixed on the waist support (1) through the connecting part, the supporting piece (4) is arranged between the first fixed seat (2) and the second fixed seat (3), and the first fixed seat (2) and the second fixed seat (3) are clamped and connected with the supporting piece (4) through the fixing piece (5).

2. The four-way lumbar recliner for a seat as in claim 1, wherein: One end of the supporting piece (4) is provided with a first hook part (6), the other end is provided with a second hook part (7), the first fixed seat (2) is provided with a first gasket (8), the second fixed seat (3) is provided with a second gasket (9), the fixing piece (5) is provided with a clamping groove (10), the first hook part (6), the first fixed seat (2) and the first gasket (8) are clamped on the corresponding clamping groove (10), and the second hook part (7), the second fixed seat (3) and the second gasket (9) are clamped on the corresponding clamping groove (10).

3. The four-way lumbar recliner of claim 2, wherein: The first fixed seat (2) is provided with a first groove (11) on one side, the second fixed seat (3) is provided with a second groove (12) on one side, the first hook part (6) is arranged at least partially on the first groove (11), and the second hook part (7) is arranged at least partially on the second groove (12).

4. The four-way lumbar recliner of claim 2, wherein: The other side of the first fixed seat (2) is provided with a third groove (13), the other side of the second fixed seat (3) is provided with a fourth groove (14), the first gasket (8) is arranged on the third groove (13), and the second gasket (9) is arranged on the fourth groove (14).

5. The four-way lumbar recliner of claim 1, wherein: The connecting part comprises a clamping column (15) arranged on the first fixed seat (2) and / or the second fixed seat (3) and a clamping groove (16) arranged on the waist support (1), and the clamping column (15) is clamped into the clamping groove (16).

6. The four-way lumbar recliner of claim 1, wherein: The first power device (17) is provided with a first pull line (19) and a second pull line (20), the first fixed seat (2) is provided with a first threading groove (21), the second fixed seat (3) is provided with a second threading groove (22), the first pull line (19) is connected to the first sliding plate (18) after passing through the first threading groove (21), and the second pull line (20) is connected to the first sliding plate (18) after passing through the second threading groove (22).

7. The four-way lumbar recliner of claim 6, wherein: The second power device (23) is provided with a third pull line (26), the third pull line (26) is arranged on the sliding wheel (25) and connected to the first sliding plate (18) after passing through the first sliding plate (18) and the second sliding plate (24) in sequence.

8. The four-way lumbar recliner of claim 7, wherein: The second sliding plate (24) is provided with a mounting groove (27), the sliding wheel (25) is mounted on the mounting groove (27), the mounting groove (27) is provided with a supporting position (28) on both sides, and the sliding wheel (25) is provided with a supporting convex point (29) on both sides.

9. The four-way lumbar recliner of claim 8, wherein: The first sliding plate (18) and the second sliding plate (24) are provided with elastic members (30), the first sliding plate (18) and the second sliding plate (24) are connected through the elastic members (30), the first sliding plate (18) and the second sliding plate (24) are provided with guide grooves (34), the support member (4) passes through the guide grooves (34), and the first sliding plate (18) and the second sliding plate (24) are slidably arranged on the support member (4) through the guide grooves (34).

10. The four-way lumbar recliner of claim 3, wherein: The first groove (11) and the second groove (12) are respectively provided with reinforcing ribs (31).

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