Quickly-adjusted structure chassis for conjoined chair

Abstract

The utility model provides a quick adjustment structure chassis for a conjoined chair, which comprises a base and a bottom plate rotationally arranged on the side of the base, a positioning plate is arranged on one side of the bottom plate close to the base, a plurality of positioning holes are formed in the positioning plate, fixing holes matched with the positioning holes are formed in the side of the base, and locking rods are arranged at the fixing holes in a sliding manner. When the locking rod penetrates through the fixing hole and one of the positioning holes, the bottom plate is in a locked state; according to the utility model, the convenience of adjusting the inclination angle gear of the seat backrest is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, especially quick -adjusting structure chassis for conjoined chair. BACKGROUND

[0002] It is known that along with the development of society and the continuous progress of science and technology, people's quality of life requirements are also higher and higher, so people hope that the seat they sit on is more comfortable.

[0003] Therefore, some chairs with casters appear on the market, which are convenient for users to move when sitting on the chair, or some chairs with lifting function appear, which can be adjusted at will by users to the height suitable for use, or some seats with swingable backrest appear on the market, the backrest of the seat is rotatably installed on the seat body, and a spring for driving the backrest to reset is arranged on the seat body, when the user leans on the backrest, the backrest can be rotated and swung backward, so as to facilitate the user to lie back and relax the body, although the backrest of the seat can swing backward, the swing range of the backrest of the seat is generally large, and the user cannot set the swing range of the backrest according to his own requirements, so the seat cannot meet the needs of the user well. SUMMARY

[0004] The utility model aims at providing a quick -adjusting structure chassis for conjoined chair which improves the convenience of seat backrest inclination angle gear adjustment.

[0005] In order to solve the above technical problems, the utility model provides a quick -adjusting structure chassis for conjoined chair, including base, bottom plate rotatably arranged in the side of base, the side of bottom plate close to base is provided with positioning plate, a plurality of positioning holes are opened in the positioning plate, and the side of base is provided with fixed hole matched with positioning hole, locking rod is slidably arranged in fixed hole, so that when locking rod is arranged through fixed hole and positioning hole, bottom plate is in locked state.

[0006] Further, the side of base is rotatably provided with adjusting handle, adjusting handle and base have adjusting block therebetween, the locking rod is located between the adjusting block and the fixed hole, and the side of the adjusting block close to the adjusting handle has an adjusting slope, the inner side of the adjusting handle has a boss matched with the adjusting slope, so that when the adjusting handle rotates, the boss slides along the adjusting slope to drive the adjusting block to move along the axial direction of the locking rod.

[0007] Further, the outer periphery of the locking rod is provided with a limiting ring, the limiting ring and the fixed hole have a reset elastic element therebetween, and the limiting ring and the adjusting block have a thrust elastic element therebetween, when the thrust elastic element and the reset elastic element are in the stretched state, the end of the locking rod is retracted in the fixed hole.

[0008] Further, the handle seat is sleeved on the outer side of the adjusting block, and the adjusting block is provided with a guide groove on the side, and the handle seat is provided with a guide rail on the inner side, which is matched with the guide groove, and the guide rail is parallel to the axial direction of the locking rod.

[0009] Further, the two ends of the adjusting slope are provided with limiting platforms, which are matched with the bosses.

[0010] Further, the inner side of the adjusting handle is provided with a first guide hole in the axial direction of the locking rod, and the inner side of the adjusting block is provided with a second guide hole in the axial direction of the locking rod, and the limiting rod is sequentially arranged in the first guide hole and the second guide hole.

[0011] Further, the inner side of the base is provided with a reinforcing plate, and the reinforcing plate is provided with a supporting hole matched with the fixing hole, so that when the locking rod is in the locking state, the end of the locking rod is sequentially arranged in the fixing hole, the positioning hole and the supporting hole.

[0012] Further, the side of the end of the adjusting handle is provided with a pressing plate.

[0013] Further, the bottom plate and the positioning plate are connected through a transmission rod, and the transmission rod is rotatably arranged on the base.

[0014] The beneficial effects of the utility model lie in that the seat backrest, the chair surface and the like are installed to the bottom plate, then the seat backrest and the chair surface are controlled to be inclined to a proper angle, at this time, the locking rod is moved along the fixing hole, and the end of the locking rod is arranged in the positioning hole, so that the locking rod limits the positioning plate, due to the connection between the positioning plate and the bottom plate, the locking rod can lock the inclination angle of the bottom plate, and the current inclination angle of the backrest and the chair surface is maintained, so that the user can conveniently control the inclination angle of the seat to a proper state, the use experience of the user is improved, and when it is needed to adjust the inclination angle of the seat, the locking rod is only needed to be retracted and reset, and the inclination angle of the adjusting base and the positioning plate is rotated again, then the locking rod is inserted into the corresponding positioning hole again, so that the inclination angle of the seat can be controlled again. ACCOUNT OF DRAWINGS

[0015] Figure 1 It is the structure schematic view of the utility model.

[0016] Figure 2 It is the side view of the utility model.

[0017] Figure 3 It is the utility model Figure 2 The section view along A-A line.

[0018] Figure 4 It is the structure schematic view of the adjusting handle in the utility model.

[0019] Figure 5 is the structural schematic diagram of the adjusting block in the utility model.

[0020] Figure 6 is the schematic diagram of the adjusting block in the utility model in the unlocking state.

[0021] Figure 7 is the schematic diagram of the adjusting block in the utility model in the locking state.

[0022] Reference signs: 1, base; 2, bottom plate; 3, positioning plate; 4, positioning hole; 5, fixed hole; 6, locking rod; 7, adjusting handle; 8, adjusting block; 9, adjusting inclined plane; 10, convex strip; 11, limiting ring; 12, reset elastic member; 13, thrust elastic member; 14, handle seat; 15, guide groove; 16, guide rail; 17, limiting platform; 18, first guide hole; 19, second guide hole; 20, limiting rod; 21, reinforcing plate; 22, support hole; 23, pressing push plate; 24, transmission rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.

[0024] Those skilled in the art should understand that in the disclosure of the utility model, the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0025] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0026] As Figures 1-7The utility model provides a quick adjust structure bottom disc for a connected chair, including base 1, the bottom plate 2 of rotating setting in the side of base 1, the side close to base 1 of bottom plate 2 is provided with the locating plate 3, a plurality of locating holes 4 are opened in the locating plate 3, and the side of base 1 is provided with the fixed hole 5 matched with locating hole 4, and the locking rod 6 is slidably arranged in the fixed hole 5, so that when the locking rod 6 is arranged through the fixed hole 5 and the locating hole 4, the bottom plate 2 is in the locking state.

[0027] The seat backrest, seat surface and the like are installed to the bottom plate, then the seat backrest and seat surface are controlled to be inclined to a suitable angle, at this time the locking rod moves along the fixed hole, and the end of the locking rod is arranged into the locating hole, so that the locking rod limits the locating plate, because the locating plate is connected with the bottom plate, the locking rod can lock the inclination angle of the bottom plate, thereby maintaining the current inclination angle of the seat backrest and seat surface, so that the user can conveniently control the inclination angle of the seat to a suitable state, and the use experience of the user is improved, and when the inclination angle of the seat needs to be adjusted, the locking rod only needs to be retracted and reset, and the inclination angle of the adjusting base and the locating plate is rotated again, then the locking rod is inserted into the corresponding locating hole again, so that the inclination angle of the seat can be controlled again.

[0028] Preferably, the adjusting handle 7 is rotatably arranged on the side of the base 1, the adjusting handle 7 and the base 1 are provided with the adjusting block 8, the locking rod 6 is located between the adjusting block 8 and the fixed hole 5, one side of the adjusting block 8 close to the adjusting handle 7 is provided with the adjusting inclined surface 9, the inner side of the adjusting handle 7 is provided with the boss 10 matched with the adjusting inclined surface 9, so that when the adjusting handle 7 rotates, the boss 10 slides along the adjusting inclined surface 9 to drive the adjusting block 8 to move along the axial direction of the locking rod 6.

[0029] Specifically, the boss rotates relative to the circumferential direction of the adjusting block by rotating the adjusting handle, and in the rotating process, the boss moves along the adjusting inclined surface and pushes the adjusting block to move along the axial direction of the locking rod through the adjusting inclined surface, at this time the adjusting block pushes the locking rod to move out of the fixed hole to the locating plate, and then the locking rod is inserted into the locating hole, so as to limit the inclination angle of the bottom plate.

[0030] Preferably, the locking rod 6 is provided with the limiting ring 11 on the outer periphery, the limiting ring 11 and the fixed hole 5 are provided with the reset elastic member 12, the limiting ring 11 and the adjusting block 8 are provided with the thrust elastic member 13, when the thrust elastic member 13 and the reset elastic member 12 are in the stretched state, the end of the locking rod 6 is retracted into the fixed hole 5.

[0031] Specific, through the reset elastic piece and the thrust elastic piece to limit the ring position keeping, so that the locking rod can be stably set between the adjusting block and the fixed hole, and when the positioning hole and the locking rod is not aligned, the adjusting block pushes the locking rod in the process, the thrust elastic piece will be in the compression force storage state, at this time the end of the locking rod against the side of the positioning plate, without affecting the normal use of the adjusting handle, adjusting block, when the bottom plate drives the positioning plate to rotate, when a positioning hole passes through the end of the locking rod, the locking rod can be pushed into the positioning hole through the force storage state of the thrust elastic piece, thereby ensuring the inclination angle of the bottom plate limiting, and when the adjusting block resets, the reset elastic piece resets the locking rod to push the locking rod to ensure that the end of the locking rod retracts into the fixed hole.

[0032] Among them, the reset elastic piece and the thrust elastic piece can be used as a spring structure.

[0033] Preferably, the base 1 and the adjusting handle 7 are provided with a handle seat 14, the handle seat 14 is sleeved on the outside of the adjusting block 8, and the adjusting block 8 is provided with a guide groove 15 on the side, and the inside of the handle seat 14 is provided with a guide rail 16 matched with the guide groove 15, the guide rail 16 is parallel to the axial direction of the locking rod 6.

[0034] Specifically, the outer periphery of the adjusting block is protected and shielded by the handle seat, and the adjusting block can move along the guide rail through the guide groove when the adjusting block is pushed by the boss, so that the adjusting block moves relative to the axial direction of the locking rod, and the pushing effect of the adjusting block on the locking rod is improved.

[0035] Preferably, the adjusting slope 9 is provided with a limiting platform 17 at both ends, and the limiting platform 17 is matched with the boss 10.

[0036] Specifically, when the boss moves to the limiting platform at both ends of the adjusting slope, the abutting state between the boss and the adjusting block can be ensured by the limiting platform, so as to ensure the stable control of the boss on the adjusting block.

[0037] Preferably, the inside of the adjusting handle 7 is provided with a first guide hole 18 along the axial direction of the locking rod 6, the inside of the adjusting block 8 is provided with a second guide hole 19 along the axial direction of the locking rod 6, and the limiting rod 20 is sequentially arranged through the first guide hole 18 and the second guide hole 19.

[0038] Specifically, the limiting rod is arranged through the first guide hole and the second guide hole, so as to ensure the axial stable connection between the adjusting handle and the adjusting block, and when the adjusting handle rotates, the boss can stably drive the adjusting block to move, so as to improve the use stability of the locking rod.

[0039] In an embodiment of the present application, the end of the limiting rod is threadedly locked with the side of the base.

[0040] Preferably, the inside of the base 1 is provided with a reinforcing plate 21, and the reinforcing plate 21 is provided with a support hole 22 matched with the fixing hole 5, so that when the locking rod 6 is in the locked state, the end of the locking rod 6 is sequentially arranged in the fixing hole 5, the positioning hole 4 and the support hole 22.

[0041] Specifically, when the locking rod is locked, the two sides of the end of the locking rod are supported and limited by the fixing hole and the support hole, so as to ensure the stable connection between the positioning hole between the two sides and the locking rod, improve the stress capacity of the locking rod, and prevent the end of the locking rod from being bent after long time use.

[0042] Preferably, the side of the end of the adjusting handle 7 is provided with a pressing plate 23.

[0043] Specifically, the user can conveniently adjust the rotation angle of the adjusting handle by pulling the pressing plate, so as to accurately control the inclination and locking of the bottom plate.

[0044] Preferably, the bottom plate 2 and the positioning plate 3 are connected through a transmission rod 24, and the transmission rod 24 is rotatably arranged on the base 1, so that the bottom plate and the positioning plate can be synchronously rotated through the transmission rod, the angle locking effect of the bottom plate is improved, and the rotation stability of the bottom plate and the positioning plate relative to the base is ensured through the transmission rod.

[0045] The present application is not limited to the above-mentioned best embodiment, and anyone can derive other various forms of products under the inspiration of the present application, but regardless of any changes in shape or structure, any technical solution with the same or similar technical solution as the present application falls within the protection scope of the present application.

Claims

1. A quick adjustment structure base plate for a connected chair, characterized by: The utility model provides a base (1), the bottom plate (2) of rotation setting in the side of base (1), bottom plate (2) is close to the side of setting up the positioning plate (3) of base (1), the positioning hole (4) of being opened in the positioning plate (3) place, and the fixed hole (5) of being opened with the positioning hole (4) matching in the side of base (1), locking lever (6) slip setting in fixed hole (5) place, to make locking lever (6) wear and set through fixed hole (5) and the positioning hole (4) in it when, bottom plate (2) is in the locking state; The side of base (1) is rotationally provided with an adjusting handle (7), and the adjusting handle (7) and the base (1) have an adjusting block (8) therebetween, the locking lever (6) is located between the adjusting block (8) and the fixed hole (5), and the side of the adjusting block (8) close to the adjusting handle (7) has an adjusting inclined surface (9), the inner side of the adjusting handle (7) has a boss (10) matched with the adjusting inclined surface (9), so that when the adjusting handle (7) rotates, the boss (10) slides along the adjusting inclined surface (9) to drive the adjusting block (8) to move along the axial direction of the locking lever (6).

2. The quick adjustment structure chassis for a conjoined chair according to claim 1, wherein: The outer periphery of the locking lever (6) is provided with a limiting ring (11), the limiting ring (11) and the fixed hole (5) have a reset elastic member (12) therebetween, and the limiting ring (11) and the adjusting block (8) have a thrust elastic member (13) therebetween, when the thrust elastic member (13) and the reset elastic member (12) are both in the stretched state, the end of the locking lever (6) is retracted in the fixed hole (5).

3. The quick adjustment structure chassis for a conjoined chair according to claim 1, wherein: The base (1) and the adjusting handle (7) are provided with a handle seat (14) therebetween, the handle seat (14) is sleeved on the outer side of the adjusting block (8), the side of the adjusting block (8) is provided with a guide groove (15), the inner side of the handle seat (14) has a guide rail (16) matched with the guide groove (15), and the guide rail (16) is parallel to the axial direction of the locking lever (6).

4. The quick adjustment structure chassis for a conjoined chair according to claim 1, wherein: Both ends of the adjusting inclined surface (9) have a limiting platform (17) matched with the boss (10).

5. The quick adjustment structure chassis for a conjoined chair according to claim 1, wherein: The inner side of the adjusting handle (7) is provided with a first guide hole (18) in the axial direction of the locking lever (6), the inner side of the adjusting block (8) is provided with a second guide hole (19) in the axial direction of the locking lever (6), and a limiting rod (20) is sequentially arranged through the first guide hole (18) and the second guide hole (19).

6. The quick adjustment structure chassis for a conjoined chair according to claim 1, wherein: The inner side of the base (1) has a reinforcing plate (21), the reinforcing plate (21) is provided with a support hole (22) matched with the fixed hole (5), so that when the locking lever (6) is in the locked state, the end of the locking lever (6) is sequentially arranged in the fixed hole (5), the positioning hole (4) and the support hole (22).

7. The quick adjustment structure chassis for a conjoined chair according to claim 1, wherein: The side of the end of the adjusting handle (7) has a pressing push plate (23).

8. The quick adjustment structure chassis for a conjoined chair according to claim 1, wherein: The bottom plate (2) and the positioning plate (3) are connected through a transmission rod (24), and the transmission rod (24) is rotationally arranged on the base (1).

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