Elastic adjustment limiting mechanism and seat thereof

Abstract

The utility model discloses an elasticity adjustment limit mechanism and its seat, including the pole main part and set up on the outside of pole main part, be equipped with the elasticity adjustment mechanism that is used for its spacing on the outside of set up, elasticity adjustment mechanism includes the built-in piece, the outside of built-in piece is equipped with the turncap that realizes the reciprocating operation through rotation, and the turncap is equipped with the elastic adjustment mechanism that is equipped with the elastic adjustment mechanism. The height of the seat and the height of the pedal plate in the stroke can be rapidly adjusted through the elastic adjusting mechanism, stable limiting is formed, and the seat and the pedal plate are made to be matched with comfortable sitting postures of people of different body types.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat adjustment, and in particular relates to an elastic adjustment limiting mechanism and a seat thereof. Background Art

[0002] Chairs are one of the most commonly used office furniture and play an important role in family life and daily office. In order to improve the comfort brought by chairs to a certain extent, ergonomic chairs are very popular. They can adjust the height of the seat cushion and footrest according to the body shape of different people to achieve a comfortable sitting posture and correct sitting posture.

[0003] Among them, file CN202777638U discloses a seat cushion lifting mechanism, which mainly solves the problems that the existing seat cushion adjustment is very inconvenient and the operation is cumbersome, which affects consumers' use. However, it is found in the long-term use process that the main support after the seat cushion is adjusted is provided by a compression gas spring, and the compression gas spring adjustment force will be reduced after high-frequency adjustment. When sitting on it after adjustment, you will obviously feel a sinking feeling. In order to ensure the limit stability after the seat is adjusted, practitioners have designed an elastic adjustment limit mechanism and its seat. Utility Model Content

[0004] The purpose of the utility model is to provide an elastic adjustment and limiting mechanism and a seat thereof in order to solve the problem that the seat cushion adjustment mechanism of the seat is difficult to form a stable limit after high-frequency use.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: an elastic adjustment and limiting mechanism, comprising a support rod body and a sleeve sleeved on the outside of the support rod, wherein the outside of the sleeve is provided with an elastic adjustment mechanism for limiting the support rod;

[0006] The elastic adjustment mechanism includes an inner part, a rotary cap is sleeved on the outer side of the inner part for realizing reciprocating operation by rotation, a pin is fixedly arranged inside the rotary cap, the pin passes through the inner part, and an elastic part providing elastic force is arranged between the pin and the inner part.

[0007] Furthermore, a plurality of groups of pin holes are evenly distributed on the outer side wall of the support rod body, and the pin shaft is adjusted by the screw cap to achieve reciprocating operation and cooperate with the pin holes.

[0008] Furthermore, the built-in component cooperates with the screw cap in that a spiral slope is provided on the inner wall of the built-in component, and a push rod in contact with the spiral slope is provided on the inner wall of the screw cap.

[0009] Furthermore, a limiting protrusion is provided on the outer side wall of the pin shaft, and the elastic member is placed between the limiting protrusion and the built-in component cavity.

[0010] Furthermore, the built-in component cooperates with the screw cap in that a spiral step surface is provided on the inner wall of the built-in component, the surface of the spiral step surface is adapted to the unlocking direction, and a push rod in contact with the spiral step surface is provided on the inner wall of the screw cap.

[0011] A seat comprises the elastic adjustment limiting mechanism, wherein two groups of the elastic adjustment limiting mechanism are arranged opposite to each other, and the ends of the two groups of the elastic adjustment limiting mechanism are provided with stable support rods to form a support therewith, and a backrest is provided on the stable support rods, and two groups of the kits are provided on the support rod bodies of the two groups of the elastic adjustment limiting mechanism, a seat cushion is provided between the two groups of the kits located at the top, and a pedal is provided between the two groups of the kits located at the bottom.

[0012] Beneficial effects: The utility model has reasonable design, simple and stable structure, strong practicality, and has the following beneficial effects:

[0013] 1. The elastic adjustment mechanism can adjust the position of the kit on the support rod body by simply rotating it. During the adjustment process, the matching mode between the built-in parts and the inside of the screw cap will provide adjustment feedback to ensure the effective matching between the pin shaft and the pin hole, thereby achieving stable limit.

[0014] 2. The elastic part between the pin and the built-in part will give the pin an outward force when the screw cap is rotated to the lowest position, thereby ensuring the fit between the pin and the pin hole, preventing it from returning easily, and enhancing the stable limiting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model;

[0016] Figure 2 This is a structural schematic diagram of the elastic adjustment limit mechanism of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the elastic adjustment mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the elastic adjustment mechanism of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the built-in component of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the screw cap of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the pin shaft of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0023] In the figure: 1-support rod body, 2-kit, 3-elastic adjustment mechanism, 4-stable support rod, 5-backrest, 6-seat cushion, 7-pedal;

[0024] 101-pin hole, 301-internal part, 302-screw cap, 303-pin shaft, 304-elastic part;

[0025] 3011- spiral slope, 3012- spiral step surface, 3021- push rod, 3031- limiting protrusion. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Embodiment 1:

[0028] Combination Figure 1-8 The elastic adjustment and limiting mechanism shown in the figure comprises a support rod body 1 and a sleeve 2 sleeved on the outside thereof, and an elastic adjustment mechanism 3 for limiting the position of the sleeve 2 is arranged on the outside of the sleeve 2;

[0029] The elastic adjustment mechanism 3 includes an internal component 301, which is fixedly arranged on the outer wall of the kit 2. The fixing method is not limited to bolt fixing, or it can be an integrated setting, etc. The outer side of the internal component 301 is sleeved with a screw cap 302 that realizes reciprocating operation by rotation, and a pin shaft 303 is fixedly arranged inside the screw cap 302. A cap is arranged on the screw cap 302, and the cap can cover the internal components to ensure the overall aesthetics. A plurality of groups of pin holes 101 are evenly distributed on the outer wall of the support rod body 1, and the pin shaft 303 is adjusted by the screw cap 302 to realize reciprocating operation and the pin hole 101 cooperates with each other to achieve stable limiting, the pin shaft 303 passes through the built-in component 301, and an elastic component 304 providing elastic force is arranged between the pin shaft 303 and the built-in component 301. The elastic component 304 can be a spring, an elastic bellows and an elastic blade, etc. Among them, the spring is the best because of its long service life and good resetting effect. In addition, the elastic component 304 is arranged to give the screw cap 302 when it rotates to the lowest position. At this time, the pin shaft 303 is in a protruding position. At this time, the elastic component 304 gives the pin shaft 303 an outward force to avoid the pin shaft 303 retreating and causing unstable limiting.

[0030] In this embodiment, the Figure 4-6The shown built-in component 301 and the screw cap 302 cooperate in such a way that the inner wall of the built-in component 301 is provided with a spiral slope 3011, and the inner wall of the screw cap 302 is provided with a top rod 3021 in contact with the spiral slope 3011. This arrangement can ensure smooth reciprocating rotation of the built-in component 301 and the screw cap 302, and can provide obvious tactile feedback when rotating to the lowest and highest positions, ensuring a more convenient use process.

[0031] In this embodiment, the Figure 4 as well as Figure 7 A limiting protrusion 3031 is provided on the outer wall of the pin shaft 303 shown, and the elastic member 304 is placed between the limiting protrusion 3031 and the cavity of the built-in member 301. This arrangement effectively limits the position of the elastic member 304 and ensures the direction of its effective force. In addition, the limiting protrusion 3031 can use the pin shaft 303 as a connecting piece between the built-in member 301 and the screw cap 302 to prevent the screw cap 302 from detaching from the built-in member 301.

[0032] Combination Figure 1 A seat shown in the figure includes an elastic adjustment limit mechanism, which has two groups of elastic adjustment limit mechanisms arranged relatively to each other, and a stabilizing support rod 4 is arranged at the end of the two groups of elastic adjustment limit mechanisms to form a support therewith, and a "V" shape is formed between the two groups to ensure the stability when placed on a horizontal plane, and a backrest 5 is arranged on the stabilizing support rod 4, and two groups of kits 2 are arranged on the support rod main body 1 of the two groups of elastic adjustment limit mechanisms, a seat cushion 6 is arranged between the two groups of kits 2 located above, and a pedal 7 is arranged between the two groups of kits 2 located below. This arrangement allows the seat cushion 6 and the pedal 7 to be adjusted in height within the travel, so that the seat can adapt to the comfortable sitting posture of people of different body shapes.

[0033] Embodiment 2: The matching mode between the built-in component 301 and the screw cap 302 in the embodiment 2 is improved on the basis of the above embodiment. The technical contents disclosed in the above embodiment are not described repeatedly, and the contents of the above disclosed embodiment also belong to the contents disclosed in the embodiment 2.

[0034] One embodiment of the present invention, in combination with Figure 8The inner wall of the inner part 301 is provided with a spiral step surface 3012, and the surface of the spiral step surface 3012 is adapted to the unlocking direction. The inner wall of the screw cap 302 is provided with a push rod 3021 in contact with the spiral step surface 3012, which is adapted to the unlocking direction. The unlocking direction is in the same direction on both sides, and is consistent in actual operation. This arrangement can ensure that the push rod 3021 can be embedded in the spiral step surface 3012 when it is matched, so that when the pin shaft 303 needs to be retracted to adjust the position of the kit 2, there is no need to always put the screw cap 302 in the highest position and support it, which is more labor-saving and convenient. However, when the spiral step surface 3012 is adjusted by the protruding pin shaft 303, the screw cap 302 needs to be pulled outward to prevent the push rod 3021 from being embedded in the spiral step surface 3012 in advance, so that the screw cap 302 does not return to the lowest position, resulting in insufficient protrusion of the pin shaft 303, and the risk of slipping of the subsequent support rod body 1 and the kit 2.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An elastic adjustment limit mechanism, comprising a support rod body (1) and a sleeve (2) sleeved on the outside of the support rod body, characterized in that: An elastic adjustment mechanism (3) for limiting the position of the kit (2) is arranged on the outside of the kit (2); The elastic adjustment mechanism (3) comprises an inner component (301), the outer side of the inner component (301) is sleeved with a rotary cap (302) that realizes reciprocating operation by rotation, a pin shaft (303) is fixedly arranged inside the rotary cap (302), the pin shaft (303) passes through the inner component (301), and an elastic component (304) providing elastic force is arranged between the pin shaft (303) and the inner component (301).

2. The elastic adjustment limit mechanism according to claim 1, characterized in that: A plurality of groups of pin holes (101) are evenly distributed on the outer side wall of the support rod body (1), and the pin shaft (303) is adjusted by the screw cap (302) to achieve reciprocating operation and cooperate with the pin hole (101).

3. The elastic adjustment limit mechanism according to claim 2, characterized in that: The inner part (301) and the screw cap (302) cooperate in such a manner that the inner wall of the inner part (301) is provided with a spiral inclined surface (3011), and the inner wall of the screw cap (302) is provided with a push rod (3021) in contact with the spiral inclined surface (3011).

4. The elastic adjustment limit mechanism according to claim 3, characterized in that: A limiting protrusion (3031) is provided on the outer side wall of the pin shaft (303), and the elastic member (304) is disposed between the limiting protrusion (3031) and the cavity of the built-in member (301).

5. The elastic adjustment limit mechanism according to claim 2, characterized in that: The built-in component (301) and the screw cap (302) cooperate in that the inner wall of the built-in component (301) is provided with a spiral step surface (3012), the surface of the spiral step surface (3012) is adapted to the unlocking direction, and the inner wall of the screw cap (302) is provided with a push rod (3021) in contact with the spiral step surface (3012).

6. A seat, characterized in that: It comprises an elastic adjustment limit mechanism as claimed in any one of claims 1 to 5, wherein two groups of the elastic adjustment limit mechanisms are arranged relatively to each other, and the ends of the two groups of the elastic adjustment limit mechanisms are provided with stable support rods (4) that form support therewith, and a backrest (5) is provided on the stable support rod (4), and two groups of the kits (2) are provided on the support rod bodies (1) of the two groups of the elastic adjustment limit mechanisms, a cushion (6) is provided between the two groups of the kits (2) located at the top, and a pedal (7) is provided between the two groups of the kits (2) located at the bottom.

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