CN220458956U - Seat tool - Google Patents

Abstract

The utility model discloses a seat, which comprises chair legs, telescopic support rods and casters; the telescopic support rod is arranged in the chair leg in a sliding manner along the longitudinal direction, and an elastic piece is arranged between the telescopic support rod and the chair leg so that the telescopic support rod can elastically stretch; the casters are connected to the telescopic support rods to enable the casters to have a use position and a contraction position; in the use position, the bottom ends of the casters extend out of the lower ends of the chair legs; the seat is convenient to move; under the contraction position, the chair legs are pressed and contracted by the casters and the ground under the downward acting force, and the bottom ends of the chair legs are propped against the ground; namely, when a user sits on the seat, the gravity of the user can enable the casters to squeeze and contract with the ground, so that the bottom ends of the chair legs are propped against the ground, and the movement of the seat is limited.

Description

Seat tool

Technical Field

The utility model relates to the field of seats, in particular to a seat.

Background

The seat is an indispensable tool in life, study and work of people; people may sit on the seat for a long time to perform various matters, so the comfort of the seat is very important. The chair legs of most of the existing chairs are provided with casters, so that the chairs can be conveniently moved. The casters include movable casters, fixed casters and movable casters with brakes. The movable castor is also called a universal wheel, and the structure of the movable castor allows 360 degrees of rotation; the fixed castor is also called a directional castor, which has no rotating structure and can not rotate. The caster with the brake is provided with the brake device, so that the caster can brake; many casters with brakes used at present have complicated structures and poor braking effects.

A "caster" as disclosed in the chinese patent of CN201811617598.3 comprises: the wheel seat, the mobile unit, turn to the unit, braking unit and drive unit, the mobile unit wears to locate the wheel seat to include two rotatable runners, the braking unit includes brake seat, and first brake lever, the brake seat can be in braking position and active position removal, in the braking position relative in active position, the brake lever upwards imbeds in the runner, the drive unit includes the moving part that has the chute, and have the convex part of embedding in the chute and run through the drive lever of turning to the unit, can utilize the operation unit to drive the moving part removes, makes the drive lever follows the chute reciprocates, after the drive lever upwards moves, the drive piece can upwards prop the brake seat removes to the braking position. The caster structure is a common caster structure with brake, and the caster brake structure is complex; this results in the diameter of the castor being designed to be relatively large to enable the braking structure to be concealed within the castor. This results in a relatively compact caster for some relatively simple chairs, which is significantly uncomfortable.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the seat, and the telescopic support rod is in telescopic sliding fit with the chair legs, so that the casters can be telescopic relative to the chair legs; under the use position, the bottom ends of the casters naturally extend out of the lower ends of the chair legs, so that the seat can be conveniently moved; when a user sits on the seat, the gravity of the user can enable the casters to be extruded and contracted with the ground, so that the bottom ends of the chair legs are propped against the ground, and the movement of the seat is limited.

The technical scheme of the utility model is realized as follows:

a seat, which comprises chair legs, a telescopic strut and casters; the telescopic support rod is arranged in the chair leg in a sliding manner along the longitudinal direction, and an elastic piece is arranged between the telescopic support rod and the chair leg so that the telescopic support rod can elastically stretch; the casters are connected to the telescopic support rods to enable the casters to have a use position and a contraction position; in the use position, the bottom ends of the casters extend out of the lower ends of the chair legs; under the contraction position, the chair legs are pressed and contracted by the downward acting force to enable the casters to be pressed and contracted with the ground, and the bottom ends of the chair legs are propped against the ground.

Preferably, the side surface of the lower end of the chair leg is concavely provided with a containing groove for containing the castor; the casters are positioned in the accommodating groove and extend up and down in the accommodating groove. The casters and the chair legs are integrated into a whole, and the storage is attractive.

Preferably, the telescopic support rod is of an L-shaped structure and is connected in the accommodating groove; the telescopic support rod comprises a longitudinal slide rod and a support block; the sliding rod is in sliding fit with the chair legs, and the supporting block is configured to be connected with the casters.

Preferably, a longitudinal guide groove is correspondingly concavely arranged in the accommodating groove, the bottom end of the guide groove extends to the bottom end of the chair leg, the upper end of the guide groove extends upwards to the inside of the chair leg, and a through hole for allowing the sliding rod to penetrate upwards is formed at the upper wall of the accommodating groove; the sliding rod is in sliding fit in the guide groove upwards from the bottom end of the chair leg, and the upper end of the sliding rod is penetrated in the chair leg through the perforation. The slide bar is in sliding fit in the guide groove and penetrates through the chair legs, so that the telescopic support rod can stably stretch and retract relative to the chair legs.

Preferably, a limit caulking groove is further formed in the accommodating groove, and the support block can be embedded in the limit caulking groove; and the supporting block is in up-and-down limit fit with the limit caulking groove. The support block can only longitudinally move in the limiting caulking groove, so that the telescopic support rod can be prevented from being separated from the chair legs.

Preferably, the elastic piece is a longitudinally arranged spring, the elastic piece is arranged in the through hole of the chair leg, and the bottom end of the elastic piece is propped against the top end of the sliding rod.

Preferably, a gasket and a limit screw are connected in the accommodating groove, and the gasket is configured to limit the sliding rod to rotate in the guide groove. So that the telescopic support rod can only perform telescopic movement along the chair legs and cannot rotate.

Preferably, foot pads are detachably connected to the bottom ends of the chair legs; in the use position, the bottom ends of the casters extend out of the lower ends of the foot pads; in the retracted position, the footpad is in contact with the ground. Therefore, the telescopic support rod can be directly arranged in the chair leg in a penetrating way from the bottom end of the chair leg, and then is further connected with the foot pad, so that the assembly is convenient.

Preferably, the seat comprises at least three legs, wherein at least two of the legs are in a reclined position and the casters are mounted on the legs in the reclined position.

Preferably, the casters extend backwards beyond the chair legs, and in the use position, the bottom ends of the casters extend downwards by a distance of 3-6mm beyond the bottom ends of the chair legs. Therefore, as long as a user slightly reclines the seat, the roller can be grounded and tangential to the ground to form a rolling situation, and the seat is convenient to move.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

according to the seat, the telescopic support rod is in telescopic sliding fit with the chair legs, and the casters are connected to the telescopic support rod, so that the casters can elastically stretch and retract in the vertical direction relative to the chair legs; when the user is not seated, the elastic piece enables the casters to be in the using position extending out of the bottom ends of the chair legs, and at the moment, the seat can be pushed to enable the casters to roll along the ground, so that the seat is convenient to move; when a user sits on the seat, the gravity of the user can enable the casters to be extruded and contracted with the ground, so that the bottom ends of the chair legs are propped against the ground, and the movement of the seat is limited; the requirements for movement and braking of the seat are met, and the seat is ingenious in design and quite simple in structure.

In addition, by adopting the structure, a brake structure is not required to be designed on the caster, and the telescopic support rod is arranged inside the chair leg; therefore, the caster is suitable for small-sized casters, and the structure is wider in application range.

Drawings

FIG. 1 is a side view of a seat in an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a rear end of a seat according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of the telescoping leg engaged with the chair leg in an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of the caster in the use position of the present utility model;

FIG. 5 is a schematic perspective view of the connection of casters and telescoping struts to legs in an embodiment of the present utility model;

FIG. 6 is an exploded view of the caster and telescoping leg attachment to the chair leg in an embodiment of the present utility model;

FIG. 7 is a schematic perspective view of a telescopic strut attached to a chair leg in an embodiment of the present utility model;

fig. 8 is a schematic perspective view of the telescopic strut and chair leg matching in the embodiment of the utility model.

The reference numerals are as follows: chair legs 1; a telescopic strut 2; casters 3; an elastic member 4; a receiving groove 5; a slide bar 6; a support block 7; a guide groove 8; a limit caulking groove 9; a perforation 10; a limit screw 11; a spacer 12; a foot pad 13; the bottom ends A of the chair legs; the lower ends B of the chair legs.

Description of the embodiments

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, the term "at least one" refers to one or more, unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific embodiments of the present utility model are as follows:

as shown in fig. 1 to 4, the present utility model provides a seat comprising a chair leg 1, a telescopic strut 2 and casters 3; the telescopic support rod 2 is arranged in the chair leg 1 in a sliding manner along the longitudinal direction, and an elastic piece 4 is arranged between the telescopic support rod 2 and the chair leg 1 so that the telescopic support rod 2 can elastically stretch and retract relative to the chair leg 1; the casters 3 are connected to the telescopic support rods 2, so that the casters 3 can elastically telescopic relative to the chair legs 1 correspondingly, and the casters 3 have a use position and a contraction position; in the use position, as shown in fig. 4, that is, in the idle state, the elastic force exerted by the elastic member 4 can overcome the gravity of the seat to enable the bottom end of the castor 3 to extend downwards to the lower end of the chair leg 1, that is, the castor 3 lands and the bottom end a of the chair leg is suspended, so that the castor 3 can roll along the ground at this time, and the seat is convenient to move; for example, in this state, the user holds the back of the seat to lean back the seat by a small angle, so that the casters 3 are tangent to the ground, and the seat can be moved; under the shrink position, even the user sits on the seat, the seat is sunken, and truckle 3 then upwards contracts relative chair leg 1 under the effect of reverse force for chair leg bottom A and ground direct support contact this moment, then when the user sits on the seat, under user's gravity effect, truckle 3 will receive extrusion effort relative chair leg 1 to upwards shrink, make chair leg bottom A and ground contact support, thereby make truckle 3 not function this moment, the seat can stably support the user.

As shown in fig. 3-8, a containing groove 5 for containing the caster 3 is concavely arranged on the inner side surface of the lower end B of the chair leg. The telescopic support rod 2 is of an L-shaped structure, the telescopic support rod 2 comprises a longitudinal slide rod 6 and a support block 7 positioned at the bottom end of the slide rod 6, and the support block 7 is used for being connected with the caster 3; the specific method is as follows: the sliding rod 6 is of a cylindrical structure, a longitudinal guide groove 8 is correspondingly concavely arranged in the accommodating groove 5, and the bottom end of the guide groove 8 extends to the bottom end of the chair leg 1; the upper end of the guide groove 8 extends upwards to the inside of the chair leg 1, and a through hole 10 for allowing the sliding rod 6 to penetrate upwards is formed at the upper wall of the accommodating groove 5; in addition, a limit caulking groove 9 for embedding the support block 7 is also arranged in the accommodating groove 5; during assembly, the sliding rod 6 is in sliding fit in the guide groove 8 from bottom to top, and the upper end of the sliding rod 6 is penetrated in the chair leg 1 through the perforation 10; simultaneously embedding the support block 7 into the limit caulking groove 9; and as shown in fig. 7, after the telescopic support rod 2 is matched with the chair leg 1, a gasket 12 and a limit screw 11 are further connected in the accommodating groove 5, wherein the gasket 12 can limit the sliding rod 6 to rotate in the guide groove 8, so that the support block 7 can be always limited in the limit caulking groove 9. The limiting caulking groove 9 can limit the supporting block 7, so that the supporting block 7 can only longitudinally move in the limiting caulking groove 9, and the telescopic supporting rod 2 can be prevented from being separated from the chair leg 1. Furthermore, as shown in fig. 5, 6 and 8, the elastic member 4 is a longitudinally arranged spring, the elastic member 4 is disposed in the through hole 10 of the chair leg 1, and the bottom end of the elastic member 4 abuts against the top end of the sliding rod 6; and the elastic member 4 is configured to: when the slide bar 6 slides up the chair leg 1, the elastic member 4 will deform to provide elastic force for sliding the slide bar 6 downward again.

As shown in fig. 5-8, after the telescopic support rod 2 and the chair leg 1 are in sliding fit, the caster wheel 3 is connected to the support block 7 by adopting a screw, and the caster wheel 3 is just embedded into the accommodating groove 5, so that the structure is not abrupt after the caster wheel 3 is connected with the chair leg 1, the caster wheel 3 and the chair leg 1 are integrated, and the chair leg is attractive in storage; the casters 3 are then kept in synchronous motion with the telescopic struts 2, so that the casters 3 can elastically stretch and retract in the accommodating grooves 5 relative to the chair legs 1. In addition, the bottom end A of the chair leg is detachably connected with a foot pad 13, and the foot pad 13 is made of soft rubber, so that an anti-skid effect is achieved when the chair leg is used for supporting the ground; and foot pad 13 can dismantle with chair leg 1 and be connected for telescopic strut 2 can directly upwards wear to establish in chair leg 1 from chair leg 1 bottom, then further connect foot pad 13 again, convenient assembling.

Then, as shown in fig. 4, when the seat is in an empty state, i.e. the user is not sitting on the seat, the elastic member 4 can act on the telescopic strut 2 to enable the caster 3 to be in a use position, and at this time, the bottom end of the caster 3 protrudes downwards to the lower end of the foot pad 13, i.e. the caster 3 will contact the ground; and the seat comprises at least three chair legs 1, which can be three chair legs or four chair legs. Wherein, two chair legs are positioned at the back position in the chair legs 1, and the caster wheels 3 are arranged on the chair legs at the back position; further, the method comprises the following steps: the casters 3 extend backwards beyond the chair legs, and in the use position, the distance between the bottom ends of the casters 3 and the bottom ends A of the chair legs is 3-6mm. When the seat needs to be moved, a user only needs to slightly act on the seat to recline, the roller 3 can be enabled to touch the ground tangentially to form a rolling situation, and the seat can be enabled to roll along the ground easily, so that the seat is convenient to move. As shown in fig. 2 and 3, when the user sits on the seat, under the influence of the gravity of the user, the castor 3 will receive upward extrusion force, so that the telescopic strut 2 will drive the castor 3 to move upwards along the chair leg 1, so that the castor 3 is in a contracted position, and the foot pad 13 will directly contact with the ground, so that the castor 3 will not function when the user sits on the seat; the foot pads 13 contact the ground to stabilize the seat support. And under the shrink position, the elastic component 4 is in the compressed state, and then elasticity will 4 will provide the truckle 3 again and stretch out to the trend of using the position, and then when the user leaves the seat, truckle 3 can automatic elasticity stretch out to the position of using to can make things convenient for the thing to sit on to remove once more.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims (9)

1. A seat, characterized in that: comprises chair legs, telescopic support rods and casters; the telescopic support rod is arranged in the chair leg in a sliding manner along the longitudinal direction, and an elastic piece is arranged between the telescopic support rod and the chair leg so that the telescopic support rod can elastically stretch; the casters are connected to the telescopic support rods to enable the casters to have a use position and a contraction position; in the use position, the bottom ends of the casters extend out of the lower ends of the chair legs; under the contraction position, the chair legs are pressed and contracted by the casters and the ground under the downward acting force, and the bottom ends of the chair legs are propped against the ground; the side surface of the lower end of the chair leg is concavely provided with a containing groove for containing the castor; the casters are positioned in the accommodating groove and extend up and down in the accommodating groove.

2. A seating product as defined in claim 1, wherein: the telescopic support rod is of an L-shaped structure and is connected in the accommodating groove; the telescopic support rod comprises a longitudinal slide rod and a support block; the sliding rod is in sliding fit with the chair legs, and the supporting block is configured to be connected with the casters.

3. A seating product as defined in claim 2, wherein: a longitudinal guide groove is correspondingly concavely arranged in the accommodating groove, the bottom end of the guide groove extends to the bottom end of the chair leg, the upper end of the guide groove extends upwards to the inside of the chair leg, and a through hole for allowing the sliding rod to penetrate upwards is formed in the upper wall of the accommodating groove; the sliding rod is in sliding fit in the guide groove upwards from the bottom end of the chair leg, and the upper end of the sliding rod is penetrated in the chair leg through the perforation.

4. A seating product as defined in claim 3, wherein: a limiting caulking groove is also arranged in the accommodating groove, and the supporting block can be embedded in the limiting caulking groove; and the supporting block is in up-and-down limit fit with the limit caulking groove.

5. A seating product as defined in claim 3, wherein: the elastic piece is a longitudinally arranged spring, the elastic piece is arranged in the through hole of the chair leg, and the bottom end of the elastic piece is propped against the top end of the sliding rod.

6. A seating product as defined in claim 3, wherein: a gasket and a limit screw are connected in the accommodating groove, and the gasket is configured to limit the sliding rod to rotate in the guide groove.

7. A seating product as defined in claim 2, wherein: foot pads are detachably connected to the bottom ends of the chair legs; in the use position, the bottom ends of the casters extend out of the lower ends of the foot pads; in the retracted position, the footpad is in contact with the ground.

8. A seating product as defined in claim 1, wherein: the seat comprises at least three chair legs, wherein at least two chair legs are positioned at the back position, and the casters are arranged on the chair legs at the back position.

9. A seating product as defined in claim 1, wherein: the casters extend backwards beyond the chair legs, and in the use position, the distance between the bottom ends of the casters and the bottom ends of the chair legs is 3-6mm.