CN220275254U - Waist leans on adjustment mechanism convenient to use - Google Patents

Abstract

The utility model discloses a waist rest adjusting mechanism convenient to use, which comprises a mounting frame, wherein a lifting frame is arranged on the mounting frame, a connecting cover plate is connected to the lifting frame, four connecting auxiliary plates are arranged on two sides of the connecting cover plate and the lifting frame together, the four connecting auxiliary plates are arranged on two sides of the connecting cover plate in a crossing manner, a fixed cover plate is connected to one side of the mounting frame, and a lifting connecting plate is connected between the fixed cover plate and the mounting frame together. According to the utility model, the limiting clamping plate in the fixed cover plate is matched with the lifting groove in the lifting connecting plate, a plurality of gears are arranged for limiting the lifting backrest, and the middle pin shaft and the connected connecting auxiliary plate are driven to move in the lifting frame through the control brake cable, so that the connecting auxiliary plate is supported in an X shape, the back cushion front-back position on the connecting cover plate is adjusted, and the problem that the waist rest is inconvenient to use due to the fact that the front-back position and the upper-lower position cannot be adjusted in the conventional seat waist rest is avoided.

Description

Waist leans on adjustment mechanism convenient to use

Technical Field

The utility model relates to the technical field of office chairs, in particular to a waist rest adjusting mechanism convenient to use.

Background

Office desk and chair refers to tables and chairs used in office applications. The office desk and chair can be divided into a plate office desk and chair, a rigid office desk and chair, a metal office desk and chair, a soft office desk and chair and the like from materials; from the use occasions, offices, open staff offices, conference rooms, reading rooms, book data rooms, training classrooms, laboratories, staff dormitories are classified; the main separation from the use function is as follows: office tables, office chair sofas, filing cabinets, bookcases, etc. The Chinese patent discloses an office chair with an adjustable lumbar support (publication No. CN 218791384U), which comprises chair legs and a chair seat arranged on the chair legs, wherein a chair back is arranged on the chair seat, a soft cushion layer is arranged at the front end of the chair back, and a lumbar support mechanism is arranged between the chair back and the soft cushion layer, so that the lumbar support mechanism can stably move up and down on the chair back to be adjusted, and the phenomenon of falling off is not easy to occur. However, the lumbar support of the office chair cannot move back and forth, and can not move up and down conveniently, so that the working efficiency is low.

Disclosure of Invention

The utility model aims to overcome the defect that the waist rest is inconvenient to use due to the fact that the front and back positions and the upper and lower positions of the existing seat waist rest cannot be adjusted.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a waist leans on adjustment mechanism convenient to use, includes the mounting bracket, the mounting bracket on be equipped with the crane, the crane on be connected with and connect the apron, connection apron and crane both sides be equipped with four jointly and connect the subplate, four connection subplate cross mounting are in the both sides of connecting the apron, mounting bracket one side be connected with fixed apron, fixed apron and mounting bracket between be connected with the lift connecting plate jointly, fixed apron on be equipped with spacing cardboard, the lift connecting plate on be equipped with the lift groove, spacing cardboard set up in the lift groove.

Preferably, the connection part between the fixed cover plate and the mounting frame is provided with a fastening bolt for fixing the fixed cover plate to the mounting frame.

Preferably, the connection parts of the upper pin shaft, the middle pin shaft and the lower pin shaft and the connection cover plate are provided with connection bushings, and the connection bushings are provided with washers for fixing the connection of the upper pin shaft and other pin shafts and the connection cover plate and other components.

Preferably, the connecting cover plate is provided with an upper pin shaft and a lower pin shaft, the lifting frame is provided with a first connecting pin shaft and a second connecting pin shaft, one ends of the two connecting auxiliary plates are jointly connected to the upper pin shaft, the other ends of the two connecting auxiliary plates are connected to the second connecting pin shaft, one ends of the other two connecting auxiliary plates are jointly connected to the first connecting pin shaft, the other ends of the other two connecting auxiliary plates are jointly connected to the lower pin shaft, and the middle parts of the four connecting auxiliary plates are jointly connected with a middle pin shaft for front-back adjustment of lumbar support.

Preferably, the middle pin shaft is connected with a connecting ring in the middle, and the connecting ring is connected with a brake cable for pulling the middle pin shaft and the matched pin shaft on the lifting frame to move, and supporting a cushion connected with the connecting cover plate for use.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the waist rest height is adjusted through the matched use of the parts such as the fixed cover plate, the lifting connecting plate and the mounting frame, a plurality of gears are arranged through the mutual matching of the limiting clamping plate in the fixed cover plate and the lifting groove in the lifting connecting plate, and the limiting of the lifting backrest is performed;

2. through the cooperation of the connecting bushing, the connecting auxiliary plate, the brake cable and other parts, the middle pin shaft and the connecting auxiliary plate are driven to move in the lifting frame through the control brake cable, so that the connecting auxiliary plate is supported in an X shape, and the front and rear positions of the back cushion on the connecting cover plate are adjusted;

in summary, the limiting clamping plate in the fixed cover plate is matched with the lifting groove in the lifting connecting plate, a plurality of gears are arranged for limiting the lifting backrest, and the middle pin shaft and the connected connecting auxiliary plate are driven to move in the lifting frame through the control brake cable, so that the connecting auxiliary plate is supported in an X shape, the front and rear positions of the back cushion on the connecting cover plate are adjusted, and the problem that the waist rest is inconvenient to use due to the fact that the front and rear positions and the upper and lower positions of the existing seat waist rest cannot be adjusted is avoided.

Drawings

FIG. 1 is an assembly view of a lumbar support adjustment mechanism of the present utility model for ease of use;

FIG. 2 is a schematic view of an easy-to-use lumbar adjustment mechanism according to the present utility model;

fig. 3 is a schematic view illustrating a fixed cover plate of the lumbar support adjusting mechanism moving up and down on the lifting connecting plate;

FIG. 4 is a schematic view showing the mounting frame and the connecting member of the lumbar support adjusting mechanism lifting on the lifting connecting plate;

FIG. 5 is a schematic diagram showing a front comparison of the mounting frame and the middle pin shaft connecting part when the connecting cover plate of the lumbar support adjusting mechanism moves back and forth;

fig. 6 is a schematic side-view comparing the installation frame and the middle pin shaft connecting part when the connecting cover plate of the lumbar support adjusting mechanism provided by the utility model moves forwards and backwards.

In the figure: 1. a fastening bolt; 2. fixing the cover plate; 3. a limiting clamping plate; 4. lifting the connecting plate; 5. connecting the auxiliary plate; 6. a gasket; 7. a mounting frame; 8. a first connecting pin; 9. an upper pin shaft; 10. a middle pin shaft; 11. a lower pin shaft; 12. the second connecting pin shaft; 13. connecting a cover plate; 14. a connecting bushing; 15. a lifting frame; 16. a connecting plate; 17. a connecting ring; 18. a gate line; 19. lifting groove.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

The raw materials used in the examples were commercially purchased unless otherwise specified.

Referring to fig. 1-6, a lumbar support adjusting mechanism convenient to use, including mounting bracket 7, be equipped with crane 15 on the mounting bracket 7, be connected with on the crane 15 and connect apron 13, it is equipped with four connection subplates 5 jointly to connect apron 13 and crane 15 both sides, four connection subplates 5 cross mount is in the both sides of connecting apron 13, install on the connection apron 13 and go up round pin axle 9 and lower round pin axle 11, install first connection round pin axle 8 and second connection round pin axle 12 on the crane 15, wherein the one end of two connection subplates 5 is connected jointly on last round pin axle 9, the limit groove has all been seted up to the both sides that crane 15 and connection apron 13 correspond first connection round pin axle 8 and last round pin axle 9, be used for waist when leaning forward and backward movement, the fore and aft movement of limiting plate 13 is used for fixedly beating connection round pin axle 8, go up round pin axle 9 and crane 15 and connection apron 13, and the spacing when leaning forward and backward movement of waist, the other end of two connection subplates 5 is connected on second connection round pin axle 12, the one end of two connection subplates 5 is connected jointly on first connection round pin axle 9, the other end is connected jointly on lower joint round pin axle 11.

In the utility model, the middle parts of the four connecting auxiliary plates 5 are commonly connected with a middle pin shaft 10, the middle part of the middle pin shaft 10 is connected with a connecting ring 17 in cooperation with a brake cable 18, the connecting ring 17 is connected with the brake cable 18, the connecting parts of the upper pin shaft 9, the middle pin shaft 10 and the lower pin shaft 11 and the connecting cover plate 13 are provided with connecting bushes 14, the connecting bushes 14 are provided with washers 6, and the connection of each pin shaft and corresponding parts is fixed, so that the sliding of the pin shafts is avoided, and the use is influenced.

In the utility model, one side of a mounting frame 7 is connected with a fixed cover plate 2, a fastening bolt 1 is arranged at the joint between the fixed cover plate 2 and the mounting frame 7, a lifting connecting plate 4 is connected between the fixed cover plate 2 and the mounting frame 7, the lifting connecting plate 4 is connected with a seat matching component, the fixed cover plate 2 and the mounting frame 7 are connected with the seat through the lifting connecting plate 4, a limiting clamping plate 3 is arranged on the fixed cover plate 2, a lifting groove 19 is arranged on the lifting connecting plate 4, the limiting clamping plate 3 is arranged in the lifting groove 19, a plurality of limiting clamping grooves are arranged in the lifting groove 19, and the limiting clamping plate 3 and the lifting groove 19 are mutually matched through interference fit connection, so that the connecting cover plate 13 moves up and down on the seat.

In the utility model, when the waist rest adjusting mechanism is used, the lifting connecting plate 4 is connected to the backrest of the seat, the fixed cover plate 2 and the mounting frame 7 are mounted on the seat through the fastening bolts 1, then the lifting frame 15, the connecting cover plate 13 and other parts are connected to the seat, the connecting cover plate 13 is connected with a matched waist cushion, when the waist rest is adjusted, the cushion is moved up and down, the mounting frame 7 and the fixed cover plate 2 are driven to slide on the lifting connecting plate 4, the limiting clamping plate 3 in the fixed cover plate 2 and the lifting groove 19 in the lifting connecting plate 4 are matched with each other during sliding, a plurality of gears are arranged for limiting the lifting backrest, the connecting auxiliary plate 5 connected with the middle pin shaft 10 is driven to move in the lifting frame 15 through the control brake cable 18, so that the connecting auxiliary plate 5 is supported in an X shape, the front and back positions of the cushion on the connecting cover plate 13 are adjusted, the waist rest of the seat is convenient to use, and the use efficiency of the seat is improved.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (5)

1. Lumbar support adjustment mechanism convenient to use, including mounting bracket (7), its characterized in that: the utility model provides a lifting frame (7) on be equipped with crane (15), crane (15) on be connected with and connect apron (13), connection apron (13) and crane (15) both sides be equipped with four jointly and connect subplate (5), four connection subplate (5) cross-mount are in the both sides of connecting apron (13), mounting bracket (7) one side be connected with fixed apron (2), fixed apron (2) and mounting bracket (7) between be connected with lift connecting plate (4) jointly, fixed apron (2) on be equipped with spacing cardboard (3), lift connecting plate (4) on be equipped with lift groove (19), spacing cardboard (3) set up in lift groove (19).

2. The waist rest adjusting mechanism convenient to use according to claim 1, wherein a fastening bolt (1) is arranged at the joint between the fixed cover plate (2) and the mounting frame (7).

3. The lumbar support adjusting mechanism convenient to use according to claim 1, wherein an upper pin shaft (9) and a lower pin shaft (11) are installed on the connecting cover plate (13), a first connecting pin shaft (8) and a second connecting pin shaft (12) are installed on the lifting frame (15), one ends of the two connecting auxiliary plates (5) are commonly connected to the upper pin shaft (9), the other ends of the two connecting auxiliary plates (5) are connected to the second connecting pin shaft (12), one ends of the other two connecting auxiliary plates (5) are commonly connected to the first connecting pin shaft (8), the other ends of the other two connecting auxiliary plates are commonly connected to the lower pin shaft (11), and middle pins (10) are commonly connected to the middle parts of the four connecting auxiliary plates (5).

4. A lumbar support adjusting mechanism convenient to use according to claim 3, wherein the connection part of the upper pin shaft (9), the middle pin shaft (10) and the lower pin shaft (11) and the connecting cover plate (13) is provided with a connecting bushing (14), and the connecting bushing (14) is provided with a gasket (6).

5. A lumbar support adjusting mechanism convenient to use according to claim 3, wherein the middle part of the middle pin shaft (10) is connected with a connecting ring (17), and the connecting ring (17) is connected with a brake cable (18).