Back supporting structure and seat

Abstract

The utility model discloses a back supporting structure and a seat, the back supporting structure comprises a lifting plate and a back lifting device, and the lifting plate is provided with a plurality of adjusting grooves at intervals from top to bottom; the back lifting device comprises a chair back, a lifting control piece and a lifting adjusting assembly, the lifting adjusting assembly comprises a lifting adjusting piece and an elastic piece, the chair back is connected to the lifting plate and can move up and down, the lifting adjusting piece is arranged on the chair back and can move towards or away from the adjusting groove, and the elastic piece is arranged between the chair back and the lifting adjusting piece; the lifting control part is used for pushing the lifting adjusting part to move in the direction away from the adjusting groove, is movably connected to the chair back and is configured to be capable of pressing or loosening the lifting adjusting part, so that the lifting adjusting part is clamped into or withdrawn from the adjusting groove. In the using process, a user can adjust the height of the chair back by operating the lifting control piece, so that the chair back can better support the back, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat manufacturing, in particular to a back support structure and a seat. Background Art

[0002] The structure of seats on the market includes a seat cushion, armrests and a backrest. The backrest can provide support for the back of the human body and can greatly improve the user's comfort. However, in related technologies, the position of the backrest is generally fixed on the seat or the height of the backrest can only be adjusted in steps according to preset gears. However, users of different heights have different requirements for the height of the backrest, and seats with fixed backrests cannot meet the user's needs. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a back support structure, and the user can adjust the height of the chair back according to the needs so that the chair back can better support the back, which is conducive to improving the user experience.

[0004] In a second aspect, the utility model also proposes a seat using the above-mentioned back support structure.

[0005] According to the first aspect of the present invention, a back support structure is provided, comprising:

[0006] The lifting plate is provided with a plurality of adjustment slots, and the plurality of adjustment slots are arranged at intervals from top to bottom;

[0007] A back lifting device, comprising a chair back, a lifting control member and a lifting adjustment assembly, wherein the lifting adjustment assembly comprises a lifting adjustment member and an elastic member, wherein the chair back is connected to the lifting plate and can move up and down, the lifting adjustment member is arranged on the chair back and can move toward or away from the adjustment slot, the elastic member is arranged between the chair back and the lifting adjustment member, and is used to push the lifting adjustment member to move the lifting adjustment member in a direction away from the adjustment slot, and the lifting control member is movably connected to the chair back and is configured to be able to press or loosen the lifting adjustment member;

[0008] Among them, when the lifting control member presses the lifting adjustment member, the lifting adjustment member is stuck in the adjustment slot to limit the movement of the chair back in the up and down directions; when the lifting control member releases the adjustment member, the elastic member pushes the lifting adjustment member to make the lifting adjustment member move in a direction away from the adjustment slot, the lifting adjustment member is separated from the adjustment slot, and the chair back can move in the up and down directions.

[0009] The back support structure provided by the embodiment of the first aspect of the utility model has at least the following beneficial effects: when the back support structure is applied to a seat, when the user needs to adjust the height of the chair back, the lifting control member is first operated to loosen the lifting adjustment member, at which time the elastic member can push the lifting adjustment member to move the lifting adjustment member in a direction away from the adjustment slot, and the lifting adjustment member is separated from the adjustment slot, and the user can manually adjust the height of the chair back; when the height of the chair back reaches a suitable position, the user operates the lifting control member again to press the lifting adjustment member, so that the lifting adjustment member is stuck in the adjustment slot on the lifting plate to limit the movement of the chair back in the up and down directions, and the chair back is locked. With the back support structure provided by the embodiment of the utility model, the user can adjust the height of the chair back according to the needs, so that the chair back can better support the back, which is conducive to improving the user experience.

[0010] According to the back support structure provided by the embodiment of the first aspect of the utility model, a lifting groove extending from top to bottom is provided in the middle part of the lifting plate, and the chair back is provided with a connecting column extending toward the lifting groove, the connecting column is passed through the lifting groove and can move up and down, and a connecting seat is provided at the end of the connecting column, and the connecting seat is provided with a clamping piece, one end of the lifting control piece is rotatably connected to the connecting seat, and the other end can be clamped with the clamping piece, and when the lifting control piece is clamped with the clamping piece, the lifting control piece presses the lifting adjustment piece.

[0011] According to the back support structure provided by the embodiment of the first aspect of the utility model, the lifting control member is provided with a clamping hole, and the end of the clamping member is provided with a guiding slope, and the guiding slope is configured to guide the lifting control member so that the clamping member is clamped into the clamping hole.

[0012] According to the back support structure provided by the embodiment of the first aspect of the utility model, the multiple adjustment slots are divided into two rows, and the two rows of adjustment slots are arranged on both sides of the lifting slot. The back lifting device includes two groups of lifting adjustment components, and the lifting control component can simultaneously press or relax the two lifting adjustment components so that the two lifting adjustment components correspond one by one and are stuck in the adjustment slots on both sides of the lifting slot.

[0013] According to the back support structure provided by the first aspect of the embodiment of the utility model, a plurality of locking teeth are arranged at intervals from top to bottom on one side of the lifting adjustment member facing the adjustment groove, and when the lifting control member presses the lifting adjustment member, the plurality of locking teeth can be snapped into the plurality of adjustment grooves one by one.

[0014] According to the back support structure provided by the embodiment of the first aspect of the utility model, the lifting and adjusting component includes two elastic members, and the two elastic members are arranged on the upper and lower sides of the lifting and adjusting member.

[0015] According to the back support structure provided by the first embodiment of the utility model, the chair back is provided with two positioning columns, and the two positioning columns are respectively disposed on the upper and lower sides of the lifting and adjusting member. Positioning holes are provided on the upper and lower sides of the lifting and adjusting member, and the two positioning columns are inserted into the two positioning holes one by one.

[0016] According to the back support structure provided by the embodiment of the first aspect of the utility model, the lifting plate is provided with a plurality of gear prompt holes spaced from top to bottom, and the chair back is provided with a retractable gear column. When the chair back moves in the up and down directions, the gear column can be sequentially inserted into the gear prompt holes at different positions.

[0017] According to the back support structure provided by the embodiment of the first aspect of the utility model, the chair back is provided with a receiving groove connected to the adjustment groove, and the lifting and lowering adjustment component is arranged in the receiving groove.

[0018] The seat provided according to the embodiment of the second aspect of the utility model comprises the back support structure as described in the embodiment of the first aspect of the utility model.

[0019] The seat provided in accordance with the embodiment of the second aspect of the utility model has at least the following beneficial effects: when the user needs to adjust the height of the chair back, first operate the lifting control member to loosen the lifting adjustment member, at which time the elastic member can push the lifting adjustment member to make the lifting adjustment member move in a direction away from the adjustment slot, the lifting adjustment member is separated from the adjustment slot, and the user can manually adjust the height of the chair back; when the height of the chair back reaches a suitable position, the user operates the lifting control member again to press the lifting adjustment member, so that the lifting adjustment member is stuck in the adjustment slot on the lifting plate to limit the movement of the chair back in the up and down directions, and the chair back is locked.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 An overall schematic diagram of a back support structure provided by an embodiment of the first aspect of the utility model;

[0023] Figure 2 An exploded schematic diagram of a back support structure provided by an embodiment of the first aspect of the utility model;

[0024] Figure 3 An exploded schematic diagram of another angle of the back support structure provided by the embodiment of the first aspect of the utility model;

[0025] Figure 4 A cross-sectional view of a back support structure provided by an embodiment of the first aspect of the utility model;

[0026] Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle;

[0027] Figure 6 A schematic structural diagram of a chair back of a back support structure provided in an embodiment of the first aspect of the utility model.

[0028] The figures are as follows:

[0029] Lifting plate 100; adjustment slot 101; lifting slot 102; gear prompt hole 103; chair back 110; connecting column 111; connecting seat 112; snap-fitting piece 113; positioning column 114; gear column 115; accommodating slot 116; lifting control piece 120; snap-fitting hole 121; lifting adjustment assembly 130; lifting adjustment piece 131; elastic piece 132; locking tooth 133; positioning hole 134. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] The structure of seats on the market includes a seat cushion, armrests and a backrest. The backrest can provide support for the back of the human body and can greatly improve the user's comfort. However, in related technologies, the position of the backrest is generally fixed on the seat or the height of the backrest can only be adjusted in steps according to preset gears. However, users of different heights have different requirements for the height of the backrest, and seats with fixed backrests cannot meet the user's needs.

[0035] To solve this problem, the first embodiment of the utility model provides a back support structure, and the user can adjust the height of the chair back 110 according to needs so that the chair back 110 can better support the back, which is conducive to improving the user experience. The specific structure and function of the back support structure provided by the embodiment of the utility model will be further explained in combination with text and drawings.

[0036] Reference Figure 1 and Figure 2 According to the first aspect of the utility model, the back support structure provided by the embodiment includes: a lifting plate 100 and a back lifting device, the lifting plate 100 is located below the back lifting device and is used to connect with the chassis of the seat.

[0037] Reference Figures 2 to 5 In some embodiments, the lifting plate 100 is provided with a plurality of adjustment slots 101, and the plurality of adjustment slots 101 are arranged at intervals from top to bottom; the back lifting device comprises a chair back 110, a lifting control member 120 and a lifting adjustment assembly 130, the lifting adjustment assembly 130 comprises a lifting adjustment member 131 and an elastic member 132, the chair back 110 is connected to the lifting plate 100 and can move up and down, the lifting adjustment member 131 is provided on the chair back 110 and can move in a direction toward or away from the adjustment slot 101, and the elastic member 132 is provided between the chair back 110 and the lifting adjustment member 131, and is used to push the lifting adjustment member 131 to lift the chair back 110. The adjusting member 131 moves in a direction away from the adjusting slot 101, and the lifting control member 120 is movably connected to the chair back 110 and is configured to be able to press or release the lifting adjusting member 131; wherein, when the lifting control member 120 presses the lifting adjusting member 131, the lifting adjusting member 131 is stuck in the adjusting slot 101 to limit the movement of the chair back 110 in the up and down directions; when the lifting control member 120 releases the adjusting member, the elastic member 132 pushes the lifting adjusting member 131 to make the lifting adjusting member 131 move in a direction away from the adjusting slot 101, the lifting adjusting member 131 is separated from the adjusting slot 101, and the chair back 110 can move in the up and down directions.

[0038] According to the back support structure provided by the embodiment of the first aspect of the utility model, the back support structure is applied to the seat. When the user needs to adjust the height of the chair back 110, the lifting control member 120 is first operated to loosen the lifting adjustment member 131. At this time, the elastic member 132 can push the lifting adjustment member 131 to move the lifting adjustment member 131 in the direction away from the adjustment slot 101. The lifting adjustment member 131 is separated from the adjustment slot 101, and the user can manually adjust the height of the chair back 110; when the height of the chair back 110 reaches the appropriate position, the user operates the lifting control member 120 again to press the lifting adjustment member 131, so that the lifting adjustment member 131 is stuck in the adjustment slot 101 on the lifting plate 100 to limit the movement of the chair back 110 in the up and down directions, and the chair back 110 is locked. With the back support structure provided by the embodiment of the utility model, the user can adjust the height of the chair back 110 according to the needs, so that the chair back 110 can better support the back, which is conducive to improving the user experience.

[0039] Reference Figure 2 and Figure 3 According to the back support structure provided by the embodiment of the first aspect of the utility model, a lifting groove 102 extending from top to bottom is provided in the middle of the lifting plate 100, and the chair back 110 is provided with a connecting column 111 extending toward the lifting groove 102. The shape of the connecting column 111 matches the shape of the lifting groove 102. The connecting column 111 is penetrated by the lifting groove 102 and can move up and down in the lifting groove 102. The lifting groove 102 and the connecting column 111 cooperate to restrict the chair back 110 as a whole on the lifting plate 100, which can prevent the chair back 110 from separating from the lifting plate 100 due to excessive adjustment by the user.

[0040] Reference Figure 2 and Figure 3 In some embodiments, the connecting column 111 extends to the rear side of the lifting plate 100, and a connecting seat 112 is provided at the rear end of the connecting column 111. The connecting seat 112 is provided with a clamping piece 113. One end of the lifting control member 120 is rotatably connected to the connecting seat 112, and the other end can be clamped on the clamping piece 113. When the lifting control member 120 is clamped with the clamping piece 113, the lifting control member 120 presses the lifting adjustment member 131. During use, the user can adjust the height of the chair back 110 by operating the lifting control member 120 to clamp or separate the clamping piece 113. The operation process is simple and convenient.

[0041] It is understandable that the lifting control member 120 is in the shape of a flip cover, one end of which is rotatably connected to the connecting seat 112, and the lifting control member 120 can be rotated by turning the other end. A pressing part is provided on the side of the lifting control member 120 facing the lifting adjustment member 131. When the lifting control member 120 is engaged with the clamping member 113, the pressing part can press the lifting adjustment member 131 so that the lifting adjustment member 131 is clamped into the adjustment slot 101 on the lifting plate 100.

[0042] Reference Figure 2 , Figure 3 and Figure 5 According to the back support structure provided by the embodiment of the first aspect of the utility model, a clamping hole 121 is provided on one side of the lifting control member 120, and the clamping member 113 is columnar and has a semicircular guiding slope at the end. When the lifting control member 120 is toggled to press the lifting adjustment member 131, under the guidance of the guiding slope at the end of the clamping member 113, the friction between the clamping member 113 and the lifting control member 120 is small, and the clamping member 113 can be smoothly inserted into the clamping hole 121 on the lifting control member 120, so that the lifting control member 120 can maintain the state of pressing the lifting adjustment member 131; when the lifting control member 120 is toggled to release the lifting adjustment member 131, under the guidance of the guiding slope at the end of the clamping member 113, the clamping member 113 and the clamping hole 121 can be smoothly separated.

[0043] Reference Figure 2 and Figure 3 According to the back support structure provided by the embodiment of the first aspect of the utility model, multiple adjustment slots 101 are divided into two rows, and the two rows of adjustment slots 101 are arranged on both sides of the lifting slot 102. The back lifting device includes two groups of lifting adjustment components 130. The lifting control component 120 can simultaneously press or relax the two lifting adjustment components 131 so that the two lifting adjustment components 131 correspond to each other one by one and are inserted into the adjustment slots 101 on both sides of the lifting slot 102. The two groups of lifting adjustment components 130 cooperate with the two rows of lifting slots 102 to better lock the chair back 110.

[0044] Reference Figure 2 and Figure 3 According to the back support structure provided by the embodiment of the first aspect of the utility model, a lifting adjustment member 131 is provided with a plurality of locking teeth 133 spaced from top to bottom on one side facing the adjustment slot 101. When the lifting control member 120 presses the lifting adjustment member 131, the plurality of locking teeth 133 can be inserted into the plurality of adjustment slots 101 one by one. The plurality of locking teeth 133 cooperates with the plurality of adjustment slots 101 to lock the chair back 110 while dispersing the pressure transmitted from the chair back 110, thereby preventing the lifting adjustment member 131 from breaking due to excessive force.

[0045] Reference Figure 2 , Figure 3 and Figure 5 According to the back support structure provided by the embodiment of the first aspect of the utility model, the lifting and adjusting component 130 includes two elastic members 132, and the two elastic members 132 are arranged on the upper and lower sides of the lifting and adjusting member 131. The two elastic members 132 push the upper and lower sides of the lifting and adjusting member 131 at the same time, which is conducive to ensuring the reliability of the structure.

[0046] It should be noted that the elastic member 132 may be a spring, an elastic sleeve, etc., and the specific form of the elastic member 132 is not limited herein.

[0047] Reference Figure 2 , Figure 3 and Figure 5 According to the back support structure provided by the embodiment of the first aspect of the utility model, the chair back 110 is provided with two positioning columns 114, and the two positioning columns 114 are respectively disposed on the upper and lower sides of the lifting and adjusting member 131. The upper and lower sides of the lifting and adjusting member 131 are provided with positioning holes 134, and the two positioning columns 114 are inserted into the two positioning holes 134 one by one. When the lifting control member 120 presses or releases the lifting and adjusting member 131, the elastic member 132 will push the lifting and adjusting member 131 to move. At this time, with the cooperation of the positioning columns 114 and the positioning holes 134, the position of the lifting and adjusting member 131 is not easily offset.

[0048] It should be noted that the elastic member 132 is sleeved on the outer circumference of the positioning column 114 , and under the limitation of the positioning column 114 , the position of the elastic member 132 is not easily offset.

[0049] Reference Figure 3 and Figure 6 According to the back support structure provided by the embodiment of the first aspect of the utility model, the lifting plate 100 is provided with a plurality of gear prompt holes 103 spaced from top to bottom, and the chair back 110 is provided with a retractable gear column 115. When the chair back 110 moves in the up and down directions, the gear column 115 can be inserted into the gear prompt holes 103 at different positions in sequence. When the user adjusts the height of the chair back 110, when the gear column 115 is inserted into the gear prompt holes 103 at different positions, the end surface of the gear column 115 will collide with the wall surface of the gear prompt hole 103, and a sound will be emitted to prompt the user.

[0050] It should be noted that the distance between adjacent gear prompt holes 103 is the same as the distance between adjacent adjustment slots 101, so as to ensure that when the gear column 115 is inserted into the gear prompt hole 103, the locking tooth 133 of the gear adjustment member is aligned with the adjustment slot 101, so that the lifting control member 120 can press the lifting adjustment member 131 to lock the chair back 110.

[0051] Reference Figure 2 and Figure 3 According to the back support structure provided by the embodiment of the first aspect of the utility model, the chair back 110 is provided with a receiving groove 116 connected to the adjustment groove 101, and the lifting and lowering adjustment component 130 is arranged in the receiving groove 116, which is conducive to improving the compactness of the structure.

[0052] The seat provided according to the embodiment of the second aspect of the utility model includes the back support structure of the embodiment of the first aspect of the utility model.

[0053] According to the seat provided by the embodiment of the second aspect of the utility model, when the user needs to adjust the height of the chair back 110, the user first operates the lifting control member 120 to loosen the lifting adjustment member 131. At this time, the elastic member 132 can push the lifting adjustment member 131 to make the lifting adjustment member 131 move in a direction away from the adjustment slot 101, and the lifting adjustment member 131 is separated from the adjustment slot 101. The user can manually adjust the height of the chair back 110; when the height of the chair back 110 reaches a suitable position, the user operates the lifting control member 120 again to press the lifting adjustment member 131, so that the lifting adjustment member 131 is stuck in the adjustment slot 101 on the lifting plate 100 to limit the movement of the chair back 110 in the up and down directions, and the chair back 110 is locked.

[0054] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit it. The present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A back support structure, characterized in that: include: The lifting plate is provided with a plurality of adjustment slots, and the plurality of adjustment slots are arranged at intervals from top to bottom; A back lifting device, comprising a chair back, a lifting control member and a lifting adjustment assembly, wherein the lifting adjustment assembly comprises a lifting adjustment member and an elastic member, wherein the chair back is connected to the lifting plate and can move up and down, the lifting adjustment member is arranged on the chair back and can move toward or away from the adjustment slot, the elastic member is arranged between the chair back and the lifting adjustment member, and is used to push the lifting adjustment member to move the lifting adjustment member in a direction away from the adjustment slot, and the lifting control member is movably connected to the chair back and is configured to be able to press or loosen the lifting adjustment member; Among them, when the lifting control member presses the lifting adjustment member, the lifting adjustment member is stuck in the adjustment slot to limit the movement of the chair back in the up and down directions; when the lifting control member releases the adjustment member, the elastic member pushes the lifting adjustment member to make the lifting adjustment member move in a direction away from the adjustment slot, the lifting adjustment member is separated from the adjustment slot, and the chair back can move in the up and down directions.

2. The back support structure according to claim 1, characterized in that: A lifting slot extending from top to bottom is provided at the middle of the lifting plate, a connecting column extending toward the lifting slot is provided on the chair back, the connecting column is passed through the lifting slot and can move up and down, a connecting seat is provided at the end of the connecting column, and a clamping piece is provided on the connecting seat, one end of the lifting control piece is rotatably connected to the connecting seat, and the other end can be clamped with the clamping piece, and when the lifting control piece is clamped with the clamping piece, the lifting control piece presses the lifting adjustment piece.

3. The back support structure according to claim 2, characterized in that: The lifting control member is provided with a clamping hole, and the end of the clamping member is provided with a guiding slope, and the guiding slope is configured to guide the lifting control member so that the clamping member is clamped into the clamping hole.

4. The back support structure according to claim 2, characterized in that: The plurality of adjustment slots are divided into two rows, and the two rows of adjustment slots are disposed on both sides of the lifting slot. The back lifting device includes two groups of lifting adjustment components. The lifting control component can simultaneously press or release the two lifting adjustment components so that the two lifting adjustment components correspond one to one and are inserted into the adjustment slots on both sides of the lifting slot.

5. The back support structure according to claim 1, characterized in that: A plurality of locking teeth are arranged at intervals from top to bottom on one side of the lifting adjustment member facing the adjustment slot. When the lifting control member presses the lifting adjustment member, the plurality of locking teeth can be correspondingly inserted into the plurality of adjustment slots one by one.

6. The back support structure according to claim 1, characterized in that: The lifting and lowering adjustment component includes two elastic members, and the two elastic members are arranged on the upper and lower sides of the lifting and lowering adjustment member.

7. The back support structure according to claim 1, characterized in that: The chair back is provided with two positioning posts, which are respectively arranged on the upper and lower sides of the lifting and adjusting member. The upper and lower sides of the lifting and adjusting member are both provided with positioning holes, and the two positioning posts are inserted into the two positioning holes in a one-to-one correspondence.

8. The back support structure according to claim 1, characterized in that: The lifting plate is provided with a plurality of gear prompt holes at intervals from top to bottom, and the seat back is provided with a retractable gear column. When the seat back moves in the up and down directions, the gear column can be sequentially inserted into the gear prompt holes at different positions.

9. The back support structure according to claim 1, characterized in that: The chair back is provided with a receiving groove connected to the adjusting groove, and the lifting and lowering adjusting component is arranged in the receiving groove.

10. A seat, characterized in that: Comprising a back support structure as claimed in any one of claims 1 to 9.

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