A sliding connection structure and a chair

Abstract

This utility model relates to the field of seating, and discloses a sliding connection structure and a chair that can drive the seat to slide back and forth, increasing convenience. This utility model includes a slide rail module, comprising a first guide rail, a second guide rail, and a first elastic member. The first and second guide rails are slidable relative to each other. One end of the first elastic member is connected to the first guide rail, and the other end is connected to the second guide rail. The first elastic member is driven by elastic force to move the first and second guide rails closer together or further apart along the sliding direction. A chassis is included, with the first guide rail disposed on the chassis. A seat is included, with the second guide rail disposed on the seat. A locking assembly includes a locking member and multiple slots. One of the locking member and multiple slots is disposed on the slide rail module, and the other is disposed on the chassis or the seat. The locking member can be inserted into the slots to fix the chassis and the seat relatively.

Description

Technical Field

[0001] This utility model relates to the field of seating, and in particular to a sliding connection structure and a chair. Background Technology

[0002] Modern people, whether going to school or going to work, inevitably sit for long periods of time. To reduce the fatigue of sitting for long periods of time, a comfortable chair is essential. Therefore, people have designed many structures to optimize the user experience of chairs, including to accommodate different body types and sitting postures of different users.

[0003] Seat sliding connection structures (such as office chairs and vehicle seats) need to balance ease of adjustment, reset function, locking reliability, and operational feedback. Existing technologies have the following limitations: mechanical slide rails require manual alignment and locking, making stepless adjustment difficult; the seat cannot automatically return to its position, increasing the burden of repeated calibration; rigid locks are inconvenient to operate, and simple locks pose a risk of unlocking. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a sliding connection structure that can drive the seat to slide back and forth, increasing convenience.

[0005] This utility model also proposes a chair having the above-mentioned sliding connection structure.

[0006] On one hand, the sliding connection structure according to an embodiment of the present invention includes:

[0007] The slide rail module includes a first guide rail, a second guide rail, and a first elastic element. The first guide rail and the second guide rail are capable of sliding relative to each other. One end of the first elastic element is connected to the first guide rail, and the other end is connected to the second guide rail. The first elastic element is driven by elastic force to make the first guide rail and the second guide rail move closer to each other or further away from each other along the sliding direction.

[0008] Chassis, wherein the first guide rail is disposed on the chassis;

[0009] The chair seat, and the second guide rail is disposed on the chair seat;

[0010] A locking assembly includes a locking element and a plurality of slots, one of which is located in the slide rail module and the other in the chassis or the seat. The locking element can be inserted into the slots to fix the chassis and the seat relative to each other.

[0011] According to some embodiments of the present invention, the locking member sequentially includes a snap-fit ​​part, a rotating part, and a control part. The snap-fit ​​part can snap into the slot, the rotating part is rotatably disposed on the seat or the chassis, and the control part can drive the locking member to rotate.

[0012] According to some embodiments of the present invention, a second elastic member is also included, one end of which is connected to the seat or the chassis, and the other end is connected to the locking part. The locking member is driven by elastic force to keep the locking part engaged with the slot.

[0013] According to some embodiments of the present invention, the edge of the locking member that contacts the slot is provided with rounded corners or chamfers.

[0014] According to some embodiments of the present invention, the locking member is provided with a plurality of teeth, and the plurality of teeth can be inserted into the slot simultaneously.

[0015] According to some embodiments of the present invention, the first guide rail is provided with a first barb, the second guide rail is provided with a second barb, one end of the first elastic member is connected to the first barb, and the other end is connected to the second barb.

[0016] According to some embodiments of the present invention, both the first guide rail and the second guide rail are provided in two or more forms, with multiple first guide rails and second guide rails corresponding to each other.

[0017] According to some embodiments of the present invention, one of the first guide rail and the second guide rail is provided with a guide groove, and the other of the two is provided with a guide block. The guide groove and the guide block can cooperate with each other to allow the first guide rail and the second guide rail to slide relative to each other.

[0018] According to some embodiments of the present invention, the chassis is fixedly connected to the first guide rail via a first connecting member, and the seat is fixedly connected to the second guide rail via a second connecting member.

[0019] On the other hand, the chair according to the present invention includes the sliding connection structure according to the above embodiments of the present invention.

[0020] The embodiments of this utility model have at least the following beneficial effects:

[0021] Modular design facilitates production and assembly: the chassis, seat, and slide rail modules can be produced and assembled as a whole. Users only need to install the first or second guide rail on the guide rail chassis or seat to complete the assembly, reducing the assembly difficulty. It changes from the original assembly of scattered parts to modular assembly, reducing the tolerance stability caused by assembly, which is conducive to realizing modular production and improving production efficiency.

[0022] Enhanced connection stability and contact area: By cooperating with the guide rails, the contact area is increased, improving the overall stability and reliability of the connection;

[0023] Convenient position adjustment and reliable locking: Utilizing the relative sliding of the first and second guide rails, the seat and chassis can be flexibly and smoothly adjusted in the front-to-back direction. The locking mechanism, combined with the slot, provides a simple yet robust locking system, ensuring that both remain reliably fixed in the selected position, adapting to the needs of different user body types or usage scenarios.

[0024] Elastic Assist and Automatic Reset Function: The first elastic element, as the core driving component, assists in driving the seat and chassis to move closer or further apart when the user applies a small external force, reducing the adjustment effort and improving ease of operation. When the external force is released (such as when the user briefly releases the seat or the seat is not locked in place), the elastic restoring force will cause the first and second guide rails to automatically return to the preset initial position or equilibrium state, providing clear physical feedback.

[0025] Enhance user perception and operation experience: The elastic reset function not only provides more intuitive feedback during the adjustment process, making it easier for users to perceive the current position status, but also guides the operation direction through the reset trend, reducing uncertainty and trial and error during the adjustment process, and improving control efficiency and accuracy;

[0026] Smooth movement and structural stability: The guide rail structure ensures smooth and linear movement, while the participation of elastic components further optimizes the smoothness and controllability of the movement. Once locked, the structure is stable, possessing excellent load-bearing capacity and position retention.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a schematic diagram of the overall structure of the sliding connection structure according to an embodiment of the present invention;

[0030] Figure 2 This is an exploded structural diagram of the sliding connection structure according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the sliding connection structure of this utility model from below, with some parts being enlarged views;

[0032] Figure 4 This is a schematic diagram of the overall structure of the slide rail module according to an embodiment of the present utility model;

[0033] Figure 5 This is a schematic diagram of the overall structure of the slide rail module according to an embodiment of the present utility model;

[0034] Figure 6 This is an exploded structural diagram of the slide rail module according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the locking component in an embodiment of the present utility model;

[0036] Figure label:

[0037] Slide rail module 100, first guide rail 110, second guide rail 120, first barb 111, second barb 121, first elastic element 130;

[0038] Chassis 200;

[0039] Seat size 300;

[0040] Locking element 410, snap-fit ​​part 411, rotating part 412, control part 413, slot 420. Detailed Implementation

[0041] The following will describe several embodiments of the present invention, including embodiments corresponding to the accompanying drawings. It should be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present invention, and should not be construed as limiting the scope of protection of the present invention.

[0042] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0043] It should be noted that, unless otherwise explicitly defined, when a feature is referred to as "fixed," "connected," or "installed" on another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. The terms "fixed," "connected," and "installed" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0044] It should be noted that the descriptions of orientations or positional relationships indicated by terms such as up, down, left, right, top, bottom, front, back, inside, and outside used in this utility model are based on the orientations or positional relationships indicated by the accompanying drawings or embodiments. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] It should be noted that the term "and / or" used in this utility model includes any combination of one or more of the related listed items, "several" means one or more, "multiple" means two or more, "greater than", "less than", "exceeding" are understood to exclude the number itself, and "above", "below", "within" are understood to include the number itself.

[0046] It should be noted that the use of "first" and "second" in this utility model is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0047] It should be noted that, unless otherwise expressly defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and not for limiting the scope of the invention.

[0048] Reference Figures 1-7 The basic embodiment of the first aspect of this utility model provides a sliding connection structure, including:

[0049] The slide rail module 100 includes a first guide rail 110, a second guide rail 120, and a first elastic element 130. The first guide rail 110 and the second guide rail 120 are slidable relative to each other. One end of the first elastic element 130 is connected to the first guide rail 110, and the other end is connected to the second guide rail 120. The first elastic element 130 is driven by elastic force to make the first guide rail 110 and the second guide rail 120 move closer to each other or further away from each other along the sliding direction.

[0050] Chassis 200, the first guide rail is located on chassis 200 of 110;

[0051] Seat 300, the second guide rail is provided on seat 300;

[0052] The locking assembly includes a locking element 410 and a plurality of slots 420. One of the locking element 410 and the plurality of slots 420 is disposed on the slide rail module 100, and the other is disposed on the chassis 200 or the seat 300. The locking element 410 can be inserted into the slots 420 to fix the chassis 200 and the seat 300 relative to each other.

[0053] According to embodiments of this utility model, by such a configuration, at least the following effects can be achieved:

[0054] Modular design facilitates production and assembly: the chassis 200, seat 300, and slide rail module 100 can be produced and assembled as a whole. Users only need to install the first guide rail 110 or the second guide rail 120 on the chassis 200 or the seat 300 to complete the assembly, which reduces the assembly difficulty and changes the original assembly of scattered parts to modular assembly. This reduces the tolerance stability caused by assembly, which is conducive to realizing modular production and improving production efficiency.

[0055] Enhanced connection stability and contact area: By cooperating with the guide rails, the contact area is increased, improving the overall stability and reliability of the connection;

[0056] Convenient position adjustment and reliable locking: Utilizing the relative sliding of the first guide rail 110 and the second guide rail 120, the seat 300 and the chassis 200 can be flexibly and smoothly adjusted in the front-to-back direction. The cooperation between the locking element 410 and the slot 420 provides a simple yet robust locking mechanism, ensuring that both remain reliably fixed in the selected position, adapting to the needs of different user body types or usage scenarios.

[0057] Elastic Assist and Automatic Reset Function: The first elastic element 130 serves as the core driving component. When the user applies a small external force, it can assist in driving the seat 300 and the chassis 200 to move closer or further apart, reducing the adjustment effort and improving ease of operation. When the external force is released (such as when the user briefly releases the seat or the seat is not locked in place), the elastic restoring force will cause the first guide rail 110 and the second guide rail 120 to automatically return to the preset initial position or equilibrium state, providing clear physical feedback.

[0058] Enhance user perception and operation experience: The elastic reset function not only provides more intuitive feedback during the adjustment process, making it easier for users to perceive the current position status, but also guides the operation direction through the reset trend, reducing uncertainty and trial and error during the adjustment process, and improving control efficiency and accuracy;

[0059] Smooth movement and structural stability: The guide rail structure ensures smooth and linear movement, while the participation of elastic components further optimizes the smoothness and controllability of the movement. Once locked, the structure is stable, possessing excellent load-bearing capacity and position retention.

[0060] It should be noted that the first elastic element 130 can be a tension spring or a compression spring. Driven by the compression spring, the first guide rail 110 and the second guide rail 120 can be moved away from each other. Driven by the tension spring, the first guide rail 110 and the second guide rail 120 can be moved closer to each other. When the first guide rail 110 and the second guide rail 120 are close together, they tend to overlap each other. When the first guide rail 110 and the second guide rail 120 are far apart, they move in opposite directions.

[0061] It should be noted that in the locking assembly, the locking element 410 and the slot 420 are located on different structures. When one is set on the chassis 200, the other is set on the second guide rail 120 of the slide rail module 100. When one is set on the seat 300, the other is set on the first guide rail 110 of the slide rail module 100. The locking element 410 and the slot 420 cooperate with each other to fix them relatively.

[0062] In some embodiments, the locking member 410 sequentially includes a locking part 411, a rotating part 412, and a control part 413. The locking part 411 can engage with the slot 420, the rotating part 412 is rotatably disposed on the seat 300 or the chassis 200, and the control part 413 can drive the locking member 410 to rotate. Through rotation, the user can control the locking part 411 to engage or disengage with the slot 420 at different positions, thereby achieving flexible adjustment and multi-level locking of the front and rear positions of the seat 300 and the chassis 200.

[0063] In some embodiments, a second elastic member is further included. One end of the second elastic member is connected to the seat 300 or the chassis 200, and the other end is connected to the locking portion 411. The locking member 410 is driven by an elastic force to keep the locking portion 411 engaged with the slot 420. Under the elastic force of the second elastic member, the locking portion 411 always tends to face the slot 420, enhancing the stability of the locked state, preventing accidental unlocking, and providing the user with clear engagement feedback.

[0064] In some embodiments, the locking member 410 has a rounded or chamfered edge that contacts the slot 420. This structure reduces sliding friction, allowing the locking member 410 to slide into and out of the slot 420 more smoothly, reducing operating force, and improving the smoothness of adjustment and ergonomics.

[0065] In some embodiments, the locking member has multiple teeth that can be simultaneously inserted into the slot 420. The multi-tooth meshing structure increases the locking contact area and distributes the force, thereby significantly improving connection strength and torsional resistance, ensuring a more secure and reliable lock.

[0066] In some embodiments, the first guide rail 110 is provided with a first barb 111, the second guide rail 120 is provided with a second barb 121, and one end of the first elastic member 130 is connected to the first barb 111, and the other end is connected to the second barb 121. This barb structure provides a stable and reliable mounting point for the elastic member, ensuring effective transmission of elastic force, so that the relative sliding between the guide rails always receives uniform elastic assistance or restoring force.

[0067] In some embodiments, there are two or more of the first guide rail 110 and the second guide rail 120, with each pair of the first guide rail 110 and the second guide rail 120 corresponding to each other. The parallel operation of multiple sets of guide rails significantly improves the load-bearing capacity and anti-eccentric load performance of the entire sliding structure, while further increasing the contact surface and enhancing the stability and service life of the connection.

[0068] In some embodiments, one of the first guide rail 110 and the second guide rail 120 is provided with a guide groove, and the other is provided with a guide block. The guide groove and the guide block can cooperate with each other to allow the first guide rail 110 and the second guide rail 120 to slide relative to each other. This cooperation method achieves relative sliding while also providing radial constraint, effectively preventing the guide rails from separating or tilting, and ensuring the straightness of the motion trajectory and the stability of the overall structure.

[0069] In some embodiments, the chassis 200 is fixedly connected to the first guide rail 110 via a first connector, and the seat 300 is fixedly connected to the second guide rail 120 via a second connector. The first and second connectors are screws or bolts. The chassis 200 is assembled onto the first guide rail 110 via the first connector, and the seat 300 is assembled onto the second guide rail 120 via the second connector. This connection method not only simplifies assembly and facilitates modular production, but also provides a robust mechanical connection, ensuring effective load transfer to the guide rail structure and enhancing overall durability and structural integrity.

[0070] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", and "extended embodiment" may be used to describe several embodiments of the present invention, and the specific features, structures, materials or characteristics of the several embodiments may be combined in accordance with the principles and spirit of the present invention.

[0071] Although some embodiments of the present utility model have been shown and described in this specification, the present utility model should not be limited to the above embodiments. As long as they achieve the technical effects of the present utility model by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations of these embodiments within the spirit and principles disclosed in the present utility model, without departing from the principles and purpose of the present utility model, should be included within the scope of protection disclosed in the present utility model and should be considered to fall within the protection scope of the present utility model.

Claims

1. A slip joint structure, characterized by, include: The slide rail module (100) includes a first guide rail (110), a second guide rail (120), and a first elastic element (130). The first guide rail (110) and the second guide rail (120) are slidable relative to each other. One end of the first elastic element (130) is connected to the first guide rail (110), and the other end is connected to the second guide rail (120). The first elastic element (130) is driven by elastic force to make the first guide rail (110) and the second guide rail (120) move closer to each other or further away from each other along the sliding direction. A chassis (200), wherein the first guide rail (110) is disposed on the chassis (200); A chair seat (300), and a second guide rail (120) is disposed on the chair seat (300); The locking assembly includes a locking element (410) and a plurality of slots (420), one of which is located on the slide rail module (100) and the other on the chassis (200) or the seat (300). The locking element (410) can be inserted into the slot (420) to fix the chassis (200) and the seat (300) relative to each other.

2. The slip joint structure of claim 1, wherein: The locking member (410) includes a snap-fit ​​part (411), a rotating part (412), and a control part (413) in sequence. The snap-fit ​​part (411) can snap into the slot (420). The rotating part (412) is rotatably disposed on the seat (300) or the chassis (200). The control part (413) can drive the locking member (410) to rotate.

3. The slip joint structure of claim 2, wherein: It also includes a second elastic member, one end of which is connected to the seat (300) or the chassis (200), and the other end is connected to the locking part (411). The locking member (410) is driven by elastic force to keep the locking part (411) locked with the slot (420).

4. The slip joint structure of claim 1, wherein: The locking element (410) has rounded or chamfered edges on the edges that contact the slot (420).

5. The slip joint structure of claim 1, wherein: The locking member has multiple teeth, which can be simultaneously inserted into the slot (420).

6. The slip joint structure of claim 1, wherein: The first guide rail (110) is provided with a first barb (111), the second guide rail (120) is provided with a second barb (121), and one end of the first elastic member (130) is connected to the first barb (111) and the other end is connected to the second barb (121).

7. The slip joint structure of claim 1, wherein: The first guide rail (110) and the second guide rail (120) are provided in two or more, and the multiple first guide rails (110) and second guide rails (120) are matched one-to-one.

8. The slip joint structure of claim 1, wherein: The first guide rail (110) and the second guide rail (120) each have a guide groove and a guide block. The guide groove and the guide block can cooperate with each other to allow the first guide rail (110) and the second guide rail (120) to slide relative to each other.

9. The slip joint structure of claim 1, wherein: The bottom disc (200) is fixedly connected with the first guide rail (110) through a first connecting piece, and the seat (300) is fixedly connected with the second guide rail (120) through a second connecting piece.

10. A chair characterized by: The sliding connection structure as claimed in any one of claims 1 to 9.

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