CN216220834U

CN216220834U - Liftable seat

Info

Publication number: CN216220834U
Application number: CN202122093990.6U
Authority: CN
Inventors: 龚志强
Original assignee: Taicang Huaxu Plastic Technology Co ltd
Current assignee: Taicang Huaxu Plastic Technology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-04-08
Anticipated expiration: 2031-09-01

Abstract

The utility model belongs to the technical field of seats, and particularly relates to a liftable seat. The liftable seat comprises a bracket and a seat surface arranged on the bracket, wherein a lifting component is arranged in the bracket; the lifting assembly is vertically arranged, comprises a first pipe body and a second pipe body which are slidably inserted into each other, and further comprises a rotating and transposing device arranged in the second pipe body, an internal thread part arranged in the first pipe body, and a threaded rod vertically connected between the rotating and transposing device and the internal thread part; the rotary transposition device converts the input rotary motion with a horizontal axis into the rotary motion with a vertical axis for output so as to drive the threaded rod to rotate. The liftable seat provided by the utility model has the advantages of reasonable design, compact structure and convenience in use, the seat surface can be adjusted up and down and self-locked according to the stature of a user, and in addition, the liftable seat has the advantages of light weight, easiness in carrying, good anti-skidding property, capability of adapting to uneven ground, easiness and comfort in sitting and the like.

Description

Liftable seat

Technical Field

The utility model belongs to the technical field of seats, and particularly relates to a liftable seat.

Background

The height of the traditional sitting tools, such as a seat, a stool and other products, can not be adjusted due to the limitation of the lower supporting structure, and can not adapt to people with different heights. Especially, when the user is not fixed, for example, in a meeting room or a classroom, the design of the seat is often designed with reference to the user of a medium size, and the seat cannot be adapted to the user of another size, so that some users are very tired when using the seat. In addition, the traditional seat is also deficient in convenience such as portability, skid resistance, adaptability to uneven ground and the like.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a lifting seat.

The utility model provides a lifting seat, which comprises a bracket and a seat surface arranged on the bracket, wherein a lifting component is arranged in the bracket to adjust the height of the bracket; the lifting assembly is vertically arranged, comprises a first pipe body and a second pipe body which are slidably inserted into each other, and further comprises a rotating and transposing device arranged in the second pipe body, an internal thread part arranged in the first pipe body, and a threaded rod vertically connected between the rotating and transposing device and the internal thread part; the rotary transposition device converts the input rotary motion with a horizontal axis into the rotary motion with a vertical axis for output so as to drive the threaded rod to rotate.

When the lifting seat provided by the utility model is used, the input end of the rotating and transposing device inputs a rotating driving force to drive the threaded rod to rotate and drive the first pipe body to slide relative to the second pipe body, so that the length of the lifting component is changed, and the height of the seat surface is finally changed. Because the screw thread portion is the one-way transmission structure with the threaded rod cooperation, the seat can not descend automatically under gravity or the pressurized effect, therefore has the self-locking function. The rotation device is essentially a rotation transmission device, and the power output direction is perpendicular or substantially perpendicular to the input direction, and for example, a transmission form such as a bevel gear pair, a worm and gear pair, and the like can be adopted.

Further, the input end of the rotary transposing device is provided with a grip portion to input a rotary driving force. The gripping portion may take a variety of forms, such as a crank, hand wheel, etc. In addition, the input end of the rotary transposition device can also be connected with a motor to realize electric lifting.

Furthermore, a pair of lifting components which can be lifted synchronously is arranged in the bracket, a rotating transposition device in each set of lifting components is connected between the input ends of the rotating transposition devices; at least one input end of the rotating device is provided with a gripper part. The synchronous shaft has the function of enabling the input rotating speeds of the rotating transposing devices to be the same, and therefore stable lifting of the seat surface is guaranteed.

Further, a sleeve is connected between the two second pipe bodies to sleeve the synchronous shaft in the sleeve.

Further, the rotating and transposing device comprises a fixed shell fixed in the second pipe body, and a first bevel gear and a second bevel gear which are rotatably arranged in the fixed shell and are meshed with each other; the axis of the first bevel gear is horizontal, the axis of the second bevel gear is vertical, and the second bevel gear is connected with the threaded rod.

Furthermore, the bottom of the bracket is provided with a group of adjustable foot pads, which comprise a body part, a first supporting block and a pair of second supporting blocks, wherein the first supporting block is connected to the lower end of the body part in a threaded fit manner, and the pair of second supporting blocks are integrally fixed at the lower end of the body part and positioned at two sides of the first supporting block; the lower end surfaces of the first supporting block and the second supporting block are both provided with anti-skid protrusions. Under the condition that ground is level and smooth, mainly by the second supporting shoe pressure, when ground unevenness, the first supporting shoe of a certain adjustable callus on the sole of rotatable makes it downstream to compensate ground, prevent that the thing to sit on from rocking and the user from falling down.

Furthermore, a plurality of air holes are arranged on the seat surface in a penetrating way to enhance the air permeability of the seat surface, so that the problem that the buttocks are sultry when the seat surface is used for a long time is avoided. The lower side of the seat surface is provided with reinforcing ribs around the air holes for local reinforcement to prevent the seat surface from being torn from the air holes.

Furthermore, the whole seat surface is in a round rectangular shape, the center of the seat surface is provided with a central sunken area which is sunken downwards to bear the buttocks, and one side edge of the seat surface is provided with a pair of grooves which smoothly extend to the central sunken area to bear the legs. The comfort level of the user in use can be improved by carrying out the optimized design on the shape of the sitting surface.

Furthermore, a back rest plate is arranged on the support to support the back.

Furthermore, the center of the upper part of the backup plate is also provided with a hand hole so as to be convenient for carrying and moving.

Has the advantages that: compared with the prior art, the liftable seat provided by the utility model has the advantages of reasonable design, compact structure and convenience in use, the seat surface can be adjusted up and down and self-locked according to the stature of a user, and in addition, the liftable seat has the advantages of portability, easiness in carrying, good skid resistance, capability of adapting to uneven ground, easiness and comfort in sitting and the like.

Drawings

Fig. 1 is a schematic structural view of embodiment 1.

Fig. 2 is a schematic view of the internal structure of embodiment 1.

Fig. 3 is a schematic structural view of an adjustable foot pad.

Fig. 4 and 5 are schematic structural views of the seat surface in embodiment 1.

Fig. 6 is a partially enlarged view of the area a in fig. 5.

Fig. 7 is a schematic diagram of an internal structure of the rotary transposing apparatus.

Fig. 8 is a schematic structural view of embodiment 2.

Fig. 9 is a schematic view of the internal structure of embodiment 2.

In the figure, the seat surface 2, the first tube 31, the second tube 32, the rotating device 33, the internal thread portion 34, the threaded rod 35, the fixed shell 331, the first bevel gear 332, the second bevel gear 333, the hand grip portion 4, the synchronizing shaft 5, the sleeve 36, the adjustable foot pad 6, the body portion 61, the first supporting block 62, the second supporting block 63, the air holes 21, the reinforcing rib 22, the central recessed area 23, the groove 24, the backup plate 7 and the hand hole 71.

Detailed Description

The utility model is further illustrated by the following examples, which are intended to illustrate the technical solutions of the utility model more clearly and are not to be construed as a limitation.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example 1

A liftable seating furniture, as shown in figures 1 to 7, comprises a bracket and a seating surface 2 arranged on the bracket, and is characterized in that: a lifting component is arranged in the bracket; the lifting assembly is vertically arranged, and comprises a first pipe body 31 and a second pipe body 32 which are slidably inserted into each other, a rotating and transposing device 33 arranged in the second pipe body 32, an internal thread part 34 arranged in the first pipe body 31, and a threaded rod 35 vertically connected between the rotating and transposing device 33 and the internal thread part 34; the rotary transposing device 33 converts the input rotary motion with the horizontal axis into the rotary motion with the vertical axis, and outputs the rotary motion, so as to drive the threaded rod 35 to rotate.

In this embodiment, the rotary transposing device 33 includes a fixed casing 331 fixed in the second pipe 32, and a first bevel gear 332 and a second bevel gear 333 which are rotatably mounted in the fixed casing 331 and are engaged with each other; the axis of the first bevel gear 332 is transverse and the axis of the second bevel gear 333 is vertical, and the second bevel gear 333 is connected with the threaded rod 35. The fixing housing 331 is divided into two halves, and is covered by a set of bolts, and in addition, the fixing housing 331 and the second pipe 32 are also connected by a set of bolts.

In this embodiment, a pair of lifting assemblies for synchronously lifting and lowering is disposed in the bracket, and the first pipe 31 is disposed below the second pipe 32. In the rotating and transposing device 33 of each set of lifting assemblies, an inner hexagonal through hole is formed in the center of the first bevel gear 332, and a synchronizing shaft 5 with a hexagonal cross section penetrates through the fixed shell 331 to coaxially connect the two first bevel gears 332. A grip 4 is inserted in the center of one of the first bevel gears 332, and the grip 4 is specifically a rocking handle.

In this embodiment, a sleeve 36 is further connected between the two second tubes 32 to sleeve the synchronizing shaft 5 in the sleeve 36.

In this embodiment, the bottom of the bracket is provided with a group of adjustable foot pads 6, which comprise a body 61, a first supporting block 62 connected to the lower end of the body 61 in a threaded fit manner, and a pair of second supporting blocks 63 integrally fixed to the lower end of the body 61 and located at two sides of the first supporting block 62; the lower end surfaces of the first supporting block 62 and the second supporting block 63 are both provided with anti-skid projections.

In this embodiment, a plurality of ventilation holes 21 are formed through the seat surface 2, and reinforcing ribs 22 are provided around the ventilation holes 21 at the lower side of the seat surface 2.

In this embodiment, the seat surface 2 is rectangular with rounded corners, the center of the seat surface 2 has a central recessed area 23 recessed downward for carrying the buttocks, and a pair of grooves 24 extending smoothly to the central recessed area 23 are formed at one side edge of the seat surface 2 for carrying the legs.

In this embodiment, the support frame is further provided with a back plate 7 for supporting the back, and the center of the upper portion of the back plate 7 is further provided with a hand hole 71.

Example 2

A liftable seating furniture, as shown in fig. 7 to 9, comprises a bracket and a seating surface 2 arranged on the bracket, and is characterized in that: a lifting component is arranged in the bracket; the lifting assembly is vertically arranged, and comprises a first pipe body 31 and a second pipe body 32 which are slidably inserted into each other, a rotating and transposing device 33 arranged in the second pipe body 32, an internal thread part 34 arranged in the first pipe body 31, and a threaded rod 35 vertically connected between the rotating and transposing device 33 and the internal thread part 34; the rotary transposing device 33 converts the input rotary motion with the horizontal axis into the rotary motion with the vertical axis, and outputs the rotary motion, so as to drive the threaded rod 35 to rotate.

In this embodiment, only one set of lifting assembly is disposed in the bracket, and the first tube 31 is located below the second tube 32. Wherein, the center of the first bevel gear 332 is provided with an inner hexagonal through hole, and a hand grip part 4 is inserted, and the hand grip part 4 is specifically a rocking handle with a hexagonal end.

In this embodiment, the bottom of the bracket is provided with a group of universal rollers.

In this embodiment, the seating surface 2 is a disk.

The above embodiments are exemplary only, and are intended to illustrate the technical concept and features of the present invention so that those skilled in the art can understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a liftable thing to sit on, includes the support and installs seat (2) on the support, its characterized in that: the lifting component is arranged in the bracket to adjust the height of the bracket; the lifting assembly is vertically arranged and comprises a first pipe body (31) and a second pipe body (32) which are slidably inserted into each other, a rotating and transposing device (33) arranged in the second pipe body (32), an internal thread part (34) arranged in the first pipe body (31), and a threaded rod (35) vertically connected between the rotating and transposing device (33) and the internal thread part (34); the rotary transposition device (33) converts the input rotary motion with a horizontal axis into the rotary motion with a vertical axis for output so as to drive the threaded rod (35) to rotate.

2. Liftable seating according to claim 1, characterized in that: the input end of the rotary transposing device (33) is provided with a grip (4) for inputting a rotary driving force.

3. Liftable seating according to claim 1, characterized in that: a pair of lifting components which can synchronously lift are arranged in the bracket, a rotating transposition device (33) in each set of lifting components is connected between the input ends of the rotating transposition devices, and a synchronizing shaft (5) is connected between the input ends of the rotating transposition devices; the input end of at least one rotary transposition device (33) is provided with a gripping part (4).

4. Liftable seating according to claim 3, characterized in that: a sleeve (36) is connected between the two second pipe bodies (32) to sleeve the synchronizing shaft (5) in the sleeve (36).

5. Liftable seating according to claim 1, characterized in that: the rotating and transposing device (33) comprises a fixed shell (331) fixed in the second pipe body (32), a first bevel gear (332) and a second bevel gear (333) which are rotatably arranged in the fixed shell (331) and meshed with each other; the axis of the first bevel gear (332) is transverse, the axis of the second bevel gear (333) is vertical, and the second bevel gear (333) is connected with the threaded rod (35).

6. Liftable seating according to claim 1, characterized in that: the bottom of the bracket is provided with a group of adjustable foot pads (6) which comprise a body part (61), a first supporting block (62) which is connected to the lower end of the body part (61) in a threaded fit manner, and a pair of second supporting blocks (63) which are integrally fixed at the lower end of the body part (61) and positioned at two sides of the first supporting block (62); the lower end surfaces of the first supporting block (62) and the second supporting block (63) are provided with anti-skid projections.

7. Liftable seating according to claim 1, characterized in that: a plurality of air holes (21) are arranged on the seat surface (2) in a penetrating way, and reinforcing ribs (22) are arranged on the lower side of the seat surface (2) around the air holes (21).

8. Liftable seating according to claim 1, characterized in that: the whole seat surface (2) is in a round rectangular shape, the center of the seat surface (2) is provided with a central sunken area (23) which is sunken downwards to bear the buttocks, and the edge of one side of the seat surface (2) is provided with a pair of grooves (24) which smoothly extend to the central sunken area (23) to bear the legs.

9. Liftable seating according to claim 1, characterized in that: the bracket is also provided with a backup plate (7) for supporting the back.

10. Liftable seating according to claim 1, characterized in that: the center of the upper part of the backup plate (7) is also provided with a hand hole (71).