CN111134476A

CN111134476A - Seat with adjustable seat board

Info

Publication number: CN111134476A
Application number: CN202010106614.3A
Authority: CN
Inventors: 朱顺东
Original assignee: Dongguan Boyi Furniture Ltd
Current assignee: Dongguan Boyi Furniture Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-05-12
Anticipated expiration: 2040-02-20

Abstract

The invention discloses a seat with an adjustable seat board, which comprises a seat board, a base, an eccentric block and a seat top block, wherein one end of the seat board is pivoted to the base through a first pivoting shaft, one end of the eccentric block is pivoted to the base through a second pivoting shaft, the seat top block is fixedly arranged on the lower side of the seat board, at least two clamping positions and sliding grooves communicated with the clamping positions are arranged on the side surface of the seat top block, and the other end of the eccentric block is slidably arranged on the sliding grooves through pins and can be selectively clamped in any one of the clamping positions. The chair with the adjustable seat board has the advantages of adjustable seat board, simple structure and convenient use.

Description

Seat with adjustable seat board

Technical Field

The invention relates to a seat, in particular to a seat with an adjustable seat board.

Background

In order to adjust the sitting posture and improve the comfort of the existing chair, such as an office chair, an adjusting mechanism is generally provided for adjusting the backrest so that the backrest can be tilted. However, the existing adjusting mechanism structure is only adjustable by the backrest, and most of the seat board is not adjustable, so that the adjusting mechanism structure cannot be applied to certain occasions when the seat board is required to be adjusted to be in an inclined state, and the comfort cannot be further improved. In addition, some seat plates are designed to be adjustable, but they are complicated in structure, cumbersome to adjust, and inconvenient to use.

Disclosure of Invention

The invention aims to provide a seat which is adjustable in seat board, simple in structure and convenient to use.

In order to achieve the above purpose, the seat with the adjustable seat board provided by the invention comprises a seat board, a base, an eccentric block and a seat top block, wherein one end of the seat board is pivoted to the base through a first pivoting shaft, one end of the eccentric block is pivoted to the base through a second pivoting shaft, the seat top block is fixedly arranged at the lower side of the seat board, at least two clamping positions and a sliding groove communicated with the clamping positions are arranged on the side surface of the seat top block, and the other end of the eccentric block is slidably arranged on the sliding groove through a pin and can be selectively clamped in any one of the clamping positions.

Compared with the prior art, the base plate is pivoted to the base, one end of the eccentric block is pivoted to the base, and the seat top block is provided with at least two clamping positions, so that the other end of the eccentric block is clamped in any one clamping position, and a stable triangular structure is formed among the base, the base plate and the eccentric block; in addition, the other end of the eccentric block can be slidably arranged, so that the pin on the eccentric block can be selectively clamped in different clamping positions, the triangular structure formed by the base, the seat plate and the eccentric block can be changed, the position of the seat plate can be adjusted, and the adjusting mechanism formed by the base, the seat plate and the eccentric block is simple in connection relation, so that the structure is very simple, the adjustment can be realized only by rotating the eccentric block, and the use is very convenient.

Preferably, the seat top block is provided with a first clamping position and a second clamping position located in front of the first clamping position, and the horizontal height of the first clamping position is higher than that of the second clamping position. Thus, when the pin is clamped in the clamping position at the foremost side of the seat plate, the seat plate can be in a forward tilting state, and the forward tilting adjustable purpose is achieved.

Specifically, the horizontal height of the highest point of the sliding groove is higher than the horizontal height of the first clamping position. This prevents the pin from accidentally sliding from the slot to the second detent position from the first detent position.

Preferably, the inner bottom surface of the seat top block is provided with a containing groove, an elastic sheet is arranged in the containing groove, and the elastic sheet elastically abuts against the pin. By utilizing the elastic piece, the pin can be clamped in the clamping position, and the pin is prevented from accidentally sliding out to cause the seat plate to accidentally slide.

Specifically, the accommodating groove is located in the middle of the inner bottom surface of the seat top block, and the peripheral outline of the elastic sheet corresponds to the clamping portion and the sliding groove.

Specifically, the upper side of the elastic piece is connected with a mounting piece which is fixedly mounted on the upper side of the seat top block. Utilize the installed part can make the flexure strip set up more firmly stably in the storage tank avoids unexpected the popping out.

Specifically. The installed part includes two linking arms and two fixing bases, two the same end of linking arm is fixed one the fixing base, two the other end of linking arm is fixed another the fixing base, two the fixing base cup joint respectively in the cover post of the side of going up of seat kicking block, just the fixing base with through screw fixed connection between the cover post. Through set up in the fixing base with the cover post cup joints and fixes, can be so that the installed part with the seat kicking block can fix a position fast, can make again the installed part with seat kicking block is connected more firmly stably.

Preferably, a mounting seat is fixed on the base, a limiting groove is formed in the mounting seat, and the lower end of the eccentric block is located in the limiting groove. The side wall of the limiting groove can support the eccentric block, so that the stress of the whole mechanism is more balanced, and the structure is more stable.

Preferably, the handle is connected with the eccentric block to drive the eccentric block to swing around the second pivot shaft. The handle can enable the eccentric block to swing more easily, and operation convenience is improved.

Preferably, the device further comprises a back, a back adapter and an elastic piece, wherein one end of the back adapter is pivoted with the base through the first pivoting shaft; the other end of the back adapter is fixedly connected with the lower end of the backrest; the elastic piece is arranged between the back adapter piece and the base.

Drawings

FIG. 1 is a perspective view of a seat with the adjustable seat pan of the present invention.

Fig. 2 is an exploded view of the seat of the present invention with the seat pan adjustable.

Fig. 3 is a sectional view showing a normal state of the seat with the adjustable seat pan of the present invention.

FIG. 4 is a view showing the structure of a seat top block and a resilient piece in the adjustable seat of the seat board of the present invention.

Fig. 5 is a sectional view showing a forward tilted state of the seat with the adjustable seat pan of the present invention.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 to 3, the chair 100 with an adjustable seat plate of the present invention includes a seat plate 1, a base 2, an eccentric block 3 and a seat top block 4, wherein one end of the seat plate 1 is pivotally connected to the middle of the base 2 through a first pivot shaft 5, one end of the eccentric block 3 is pivotally connected to the front end of the base 2 through a second pivot shaft 6, the seat top block 4 is fixedly disposed at the lower side of the seat plate 1 through screws, the side surface of the seat top block 4 is provided with at least two engaging positions and a sliding slot 43 communicating the engaging positions, in this embodiment, the number of the engaging positions is two, the number of the sliding slots 43 is one, and the engaging positions are located at the end portions of the two ends of the sliding slot 43. The other end of the eccentric block 3 is slidably disposed on the sliding groove 43 through a pin 7 and can be selectively engaged with any one of the engaging positions. The seat 100 with the adjustable seat plate further comprises a handle 8, a backrest 9, a back adapter 10 and an elastic member 110, wherein the handle 8 is connected with the eccentric block 3 to drive the eccentric block 3 to swing around the second pivot shaft 6. The handle 8 can make the eccentric block 3 swing more easily, and the convenience of operation is improved. One end of the back adapter 10 is pivoted with the base 2 through the first pivoting shaft 5; the other end of the back adapter 10 is fixedly connected with the lower end of the backrest 9, and the backrest 9 is positioned at the rear side of the base 2; the elastic member 110 is disposed between the back adapter 10 and the base 2 to buffer the backrest 9.

Referring to fig. 3 and 4, a first engaging position 41 and a second engaging position 42 located in front of the first engaging position 41 are disposed on the seat top block 4, and a horizontal height of the first engaging position 41 is higher than a horizontal height of the second engaging position 42. Thus, when the pin 7 is engaged with the engagement position located at the foremost side of the seat plate 1, the seat plate 1 can be tilted forward, and the forward tilting can be adjusted. The sliding groove 43 is located between the first engaging position 41 and the second engaging position 42, the sliding groove 43 is bent downward and is disposed from the rear end to the front end in a manner of extending upward and then extending downward, and the highest point of the sliding groove 43 is higher than the first engaging position 41. This prevents the pin 7 from accidentally sliding from the slot 43 to the second detent 42 from the first detent 41.

Referring to fig. 3 and 4, the inner bottom surface of the seat top block 4 is provided with an accommodating groove 44, an elastic sheet 120 is arranged in the accommodating groove 44, and the elastic sheet 120 elastically abuts against the pin 7. By using the elastic piece 120, the pin 7 can be clamped in the clamping position, and the pin 7 is prevented from accidentally sliding out to cause the seat plate 1 to accidentally slide. The receiving groove 44 is located at the middle position of the inner bottom surface of the seat top block 4, and the outer peripheral contour of the elastic sheet 120 corresponds to the engaging portion and the sliding groove 43. A mounting member 121 is connected to an upper side of the elastic piece 120, and the mounting member 121 is fixedly mounted to an upper side of the seat top block 4. The mounting member 121 can be used to firmly and stably dispose the elastic sheet 120 in the accommodating groove 44, thereby preventing the elastic sheet from being accidentally ejected. The mounting member 121 includes two connecting arms 121a and two fixing bases 121b, one fixing base 121b is fixed to the same end of each of the two connecting arms 121a, the other fixing base 121b is fixed to the other end of each of the two connecting arms 121a, the two fixing bases 121b are respectively sleeved on the sleeve columns 45 on the upper side surfaces of the seat top blocks 4, and the fixing bases 121b are fixedly connected with the sleeve columns 45 through screws. Through set up in fixing base 121b with set post 45 cup joints and is fixed, can make installed part 121 with seat kicking block 4 can fix a position fast, can make again installed part 121 with seat kicking block 4 is connected more firmly stably.

Referring to fig. 3, an installation seat 130 is fixed on the base 2, the installation seat 130 is provided with a limit groove 131, and the lower end of the eccentric block 3 is located in the limit groove 131. The side wall of the limiting groove 131 can support the eccentric block 3, so that the stress of the whole mechanism is more balanced, and the structure is more stable.

In combination with the above description and with reference to fig. 3 and 5, the following describes in detail the adjustment process of the adjustable seat 100 of the seat pan of the present invention, as follows:

in a normal state, the pin 7 is located at the first engaging position 41, and the seat plate 1 is in a horizontal state. When the seat plate 1 needs to be adjusted to a forward tilting state, the handle 8 is manually operated to swing the eccentric block 3 around the second pivot shaft 6 to the front side of the seat plate 1, and at this time, the pin 7 is disengaged from the first engaging position 41, slides along the sliding groove 43, and finally slides to the second engaging position 42 and is engaged with the second engaging position 42. During the swinging of the eccentric block 3, the seat plate 1 rotates around the first pivot shaft 5 and is adjusted from a horizontal state to a forward tilting state. When the seat plate 1 needs to be restored to the normal state, the handle 8 is operated again to slide the pin 7 on the eccentric block 3 from the second clamping position 42 to the first clamping position 41.

Compared with the prior art, the seat plate 1 is pivoted to the base 2, one end of the eccentric block 3 is pivoted to the base 2, and the seat top block 4 is provided with at least two clamping positions, so that the other end of the eccentric block 3 is clamped in any one clamping position, and a stable triangular structure is formed among the base 2, the seat plate 1 and the eccentric block 3; in addition, the other end of the eccentric block 3 is slidably arranged, so that the pin 7 on the eccentric block 3 can be selectively clamped in different clamping positions, the triangular structure formed by the base 2, the seat plate 1 and the eccentric block 3 can be changed, the position of the seat plate 1 can be adjusted, and the adjusting mechanism formed by the base 2, the seat plate 1 and the eccentric block 3 is simple in connection relation, so that the structure is very simple, the adjustment can be realized only by rotating the eccentric block 3, and the use is very convenient.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.

Claims

1. A seat with an adjustable seat board is characterized in that: including bedplate, base, eccentric block and seat kicking block, the one end of bedplate pass through first pin joint in the base, the one end of eccentric block pass through second pin joint in the base, the seat kicking block set up fixedly in the downside of bedplate, the side of seat kicking block is equipped with two at least block positions and communicates each the spout of block position, the other end of eccentric block through the pin set up slidingly in on the spout and selectively block in arbitrary in the block is located.

2. The seat pan adjustable seat as claimed in claim 1, wherein: the seat top block is provided with a first clamping position and a second clamping position located in front of the first clamping position, and the horizontal height of the first clamping position is higher than that of the second clamping position.

3. The seat pan adjustable seat as claimed in claim 2, wherein: the horizontal height of the highest point of the sliding groove is higher than that of the first clamping position.

4. The seat pan adjustable seat as claimed in claim 1, wherein: the inner bottom surface of the seat top block is provided with a containing groove, an elastic sheet is arranged in the containing groove, and the elastic sheet is elastically abutted against the pin.

5. The seat pan adjustable seat as claimed in claim 4, wherein: the containing groove is located in the middle of the inner bottom surface of the seat top block, and the peripheral outline of the elastic sheet corresponds to the clamping part and the sliding groove.

6. The seat pan adjustable seat as claimed in claim 4, wherein: the upside of flexure strip is connected with the installed part, the installed part is fixedly installed in the upside of seat kicking block.

7. The seat pan adjustable seat as claimed in claim 6, wherein: the installed part includes two linking arms and two fixing bases, two the same end of linking arm is fixed one the fixing base, two the other end of linking arm is fixed another the fixing base, two the fixing base cup joint respectively in the cover post of the side of going up of seat kicking block, just the fixing base with through screw fixed connection between the cover post.

8. The seat pan adjustable seat as claimed in claim 1, wherein: the base is fixed with a mounting seat, the mounting seat is provided with a limiting groove, and the lower end of the eccentric block is located in the limiting groove.

9. The seat pan adjustable seat as claimed in claim 1, wherein: the handle is connected with the eccentric block to drive the eccentric block to swing around the second pivot shaft.

10. The seat pan adjustable seat as claimed in claim 1, wherein: the device also comprises a back, a back adapter and an elastic piece, wherein one end of the back adapter is pivoted with the base through the first pivoting shaft; the other end of the back adapter is fixedly connected with the lower end of the backrest; the elastic piece is arranged between the back adapter piece and the base.