Chair seat with ventilation function

Abstract

The present invention relates to the technical field of chair seats, and in particular to a chair seat with a breathable function. The chair seat with a breathable function comprises a seat frame, the seat frame is connected to a plurality of connecting plates, the connecting plates are provided with a first lifting block and a second lifting block arranged at intervals, the first lifting block and the second lifting block are combined to form a seat surface of the chair seat; the chair seat with a breathable function also comprises a driving mechanism for driving the first lifting block and the second lifting block to descend, the first lifting block descends or the second lifting block descends to change the seat surface from an airtight state to a breathable state. In the present invention, when the first lifting block or the second lifting block descends, there is a breathable gap between the buttocks and the seat surface, and both the first lifting block and the second lifting block can descend, so that ventilation can be achieved in all positions of the buttocks, and the ventilation effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of chair seats, in particular to a chair seat with a ventilation function. Background Art

[0002] A chair is a kind of sitting furniture, which is an indispensable item in our daily life. Existing chairs generally include a seat and supporting legs, and the supporting legs support the seat. However, the existing chairs have poor air permeability, especially swivel chairs for office use, which are supported by soft cushions and are stuffy, so that the temperature of the chairs will become abnormally high when it is hot, which is not only uncomfortable to sit on but also easy to cause various health problems. Therefore, the existing chairs cannot meet people's needs for cooling and ventilation.

[0003] See also Figure 1 , a Chinese utility model patent with publication number CN205321840U discloses a light and breathable chair, belonging to the field of furniture technology. A light and breathable chair, from bottom to top, comprises a chair leg, a support rod connected to the chair leg, a seat cushion connected to the support rod, a backrest and armrests connected to the seat cushion, the seat cushion comprises a support portion located at the bottom and a breathable portion arranged above the support portion; the support portion comprises a raised edge around and a concave portion in the middle, the raised edge and the concave portion constitute a breathable interval, the breathable portion is located above the breathable interval; the space between the raised edge and the concave portion is hollowed out and has a breathable window; the breathable portion is a cloth surface with gaps.

[0004] The ventilation part of the portable and breathable chair is a cloth surface with gaps, and the ventilation position is fixed, so the ventilation effect is not good. Summary of the invention

[0005] The present invention aims to provide a chair seat with ventilation function and good ventilation effect.

[0006] To achieve the above advantages, the chair seat with ventilation function provided by the present invention comprises a seat frame, the seat frame is connected to a plurality of connecting plates, the connecting plates are provided with a first lifting block and a second lifting block arranged at intervals, the first lifting block and the second lifting block are combined to form a seat surface of the chair seat;

[0007] The chair seat with ventilation function also includes a driving mechanism for driving the first lifting block and the second lifting block to descend. The first lifting block descends or the second lifting block descends to change the chair surface from an airtight state to a breathable state.

[0008] In one embodiment of the present invention, the driving mechanism includes: a first rack and a second rack passing through a row of the first lifting block and the second lifting block, and a push rod motor for driving the first rack and the second rack respectively, and the first rack and the second rack move towards each other or away from each other.

[0009] In one embodiment of the present invention, the first rack is provided with a plurality of protrusions A for guiding the first lifting block to descend, and the second rack is provided with a plurality of protrusions B for guiding the second lifting block to descend.

[0010] In one embodiment of the present invention, the seat frame includes left and right seat frames and front and rear baffle frames. The left seat frame and the right seat frame are fixed by a detachable connection between the front baffle frame and the rear baffle frame. The left and right seat frames cooperate with the front and rear baffle frames to form a accommodating space for accommodating the first lifting block and the second lifting block.

[0011] In one embodiment of the present invention, the left seat frame and the right seat frame each have a shielding portion extending away from the center of the seat frame for shielding the driving mechanism.

[0012] In one embodiment of the present invention, the first lifting block and the second lifting block are respectively provided with through grooves corresponding to the protrusions A and the protrusions B.

[0013] In one embodiment of the present invention, the protrusion A is provided with an inclined surface A1 extending toward the lower right, and the protrusion B is provided with an inclined surface B1 extending toward the lower left.

[0014] In one embodiment of the present invention, the front and rear gear frames and both end portions of the connecting plate are respectively provided with connecting protrusions, and the left and right seat frames are provided with connecting holes corresponding to the connecting protrusions.

[0015] In one embodiment of the present invention, a compression spring and a limiting member for adjusting the preload of the compression spring are provided between the first lifting block, the second lifting block and the connecting plate.

[0016] In one embodiment of the present invention, the first lifting block, the second lifting block and the connecting plate are respectively provided with positioning protrusions located at both ends of the spring.

[0017] In the present invention, the chair seat with ventilation function is provided with a first lifting block and a second lifting block, which are respectively used to drive the push rod motors of the first lifting block and the second lifting block to descend. When the first lifting block or the second lifting block descends, a ventilation gap is provided between the buttocks and the chair surface. Both the first lifting block and the second lifting block can be descended, so that ventilation can be achieved in all positions of the buttocks, and the ventilation effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a structural schematic diagram of an existing light and breathable chair.

[0019] Figure 2 FIG. 1 is a schematic structural diagram of a chair seat with ventilation function according to a first embodiment of the present invention.

[0020] Figure 3 Shown Figure 2 Exploded view of a breathable chair seat.

[0021] Figure 4 Shown Figure 2 A schematic diagram of the structure of a seat frame of a chair seat with ventilation function.

[0022] Figure 5 Shown Figure 2 A structural schematic diagram of a first lifting block and a second lifting block in a row of a seat with ventilation function.

[0023] Figure 6 Shown Figure 5 A top view of a row of first lifting blocks and second lifting blocks.

[0024] Figure 7 Shown Figure 6 A cross-sectional view of the EE.

[0025] Figure 8 Shown Figure 6 Cross-sectional view of FF.

[0026] Fig. 9 Shown Figure 5 Schematic diagram of the structure of the first rack and the second rack. DETAILED DESCRIPTION

[0027] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0028] See also Figure 2-4 The chair seat with ventilation function of the first embodiment of the present invention includes a seat frame 1, and the seat frame 1 includes a left seat frame 11, a right seat frame 12, a front frame 13, and a rear frame 14. The left seat frame 11 and the right seat frame 12 are detachably connected and fixed by the front frame 13 and the rear frame 14.

[0029] The seat frame 1 is connected to a plurality of connecting plates 112 , on which the first lifting blocks 2 and the second lifting blocks 3 are arranged at intervals, and the first lifting blocks 2 and the second lifting blocks 3 are combined to form a seat surface of the seat.

[0030] The left seat frame 11 and the right seat frame 12 cooperate with the front frame 13 and the rear frame 14 to form an accommodating space C for accommodating the first lifting block 2 and the second lifting block 3. The left seat frame 11 and the right seat frame 12 respectively extend a shielding portion 4 for shielding the driving mechanism 5 away from the center of the seat frame 1. The front frame 13, the rear frame 14, and the end portions of the connecting plate 112 are respectively provided with connecting protrusions 131, 141, and 112a, and the left seat frame 11 and the right seat frame 12 are respectively provided with connecting holes 110 (not shown), connecting holes 120, and connecting holes 121 corresponding to the connecting protrusions 131, 141, and 112a.

[0031] The four corners of the first lifting block 2 and the second lifting block 3 are respectively provided with chamfers, which are used to allow ventilation between the upper and lower surfaces of the first lifting block 2 and the second lifting block 3 to facilitate the first lifting block 2 or the second lifting block 3 to descend.

[0032] The chair seat with ventilation function also includes a driving mechanism 5 for driving the first lifting block 2 and the second lifting block 3 to descend. The first lifting block 2 or the second lifting block 3 descends to change the seat surface from an airtight state to a breathable state.

[0033] The driving mechanism 5 includes: a first rack 51 and a second rack 52 passing through a row of first lifting blocks 2 and second lifting blocks 3, and a push rod motor 53 for driving the first rack 51 and the second rack 52. The first rack 51 and the second rack 52 move toward each other or away from each other.

[0034] See also Figure 5-9 The first rack 51 is provided with a plurality of protrusions A for guiding the first lifting block 2 to descend, and the second rack 52 is provided with a plurality of protrusions B for guiding the second lifting block 3 to descend.

[0035] Preferably, the plurality of first racks 51 are connected and fixed via a first connecting plate 55 , and the plurality of second racks 52 are connected and fixed via a second connecting plate 56 . The first connecting plate 55 is located on the left side of the seat frame 1 , and the second connecting plate 56 is located on the right side of the seat frame 1 .

[0036] The first lifting block 2 and the second lifting block 3 are respectively provided with grooves 21 and 31 corresponding to the protrusions A and B. The protrusion A is provided with an inclined surface A1 extending toward the lower right, and the protrusion B is provided with an inclined surface B1 extending toward the lower left.

[0037] A compression spring t and a limiter 6 for adjusting the preload of the compression spring t are provided between the first lifting block 2, the second lifting block 3 and the connecting plate 112. The first lifting block 2, the second lifting block 3 and the connecting plate 112 are respectively provided with positioning protrusions 22, 32 and 112b located at both ends of the compression spring t.

[0038] The preload of the compression spring t is used to offset the weight of a person sitting on the chair. When the preloads of the compression springs t of the first lifting block 2 and the second lifting block 3 are consistent, the chair surface formed by the combination of the first lifting block 2 and the second lifting block 3 is a plane.

[0039] Preferably, the stopper 6 is a screw or a bolt. More preferably, the screw is a hexagon head wood screw.

[0040] When the seat is in normal use, the push rod motor 53 on the left side generally works first, and the push rod motor 53 on the left side drives all the first racks 51 on the left side to move to the left, so that all the first lifting blocks 2 are lowered. After a certain period of time (such as one minute, two minutes, or five minutes), the push rod motor 53 stops working, its torque disappears, and the elastic force of the compression spring t returns the first lifting block 2 to its original position; then the push rod motor 53 on the right side works, and the push rod motor 53 on the right side drives all the second racks 52 on the right side to move to the right, so that all the second lifting blocks 3 are lowered. After a certain period of time (such as one minute, two minutes, or five minutes), the push rod motor 53 stops working, its torque disappears, and the elastic force of the compression spring t returns the second lifting block 3 to its original position, completing a cycle. In addition, the push rod motor 53 on the right side may work first.

[0041] In other embodiments of the present invention, the first rack 51 and the second rack 52 of the seat with ventilation function can also be driven by motors respectively.

[0042] When the chair seat of the present embodiment is in use, generally one motor on one side works. After one minute, the motor stops working and its torque disappears. The elastic force of the compression spring t causes the first lifting block 2 or the second lifting block to return to its original position. Then the other motor on the same side works and goes down in turn. After the left motor finishes working, the right motor also works in turn to complete a cycle. In addition, the working rules of the motors can also be set as required.

[0043] In the present invention, the chair seat with ventilation function is provided with a first lifting block and a second lifting block, which are respectively used to drive the push rod motors of the first lifting block and the second lifting block to descend. When the first lifting block or the second lifting block descends, a ventilation gap is provided between the buttocks and the chair surface. Both the first lifting block and the second lifting block can be descended, so that ventilation can be achieved in all positions of the buttocks, and the ventilation effect is good.

[0044] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A chair seat with ventilation function, comprising a seat frame, characterized in that: The seat frame is connected to a plurality of connecting plates, on which a first lifting block and a second lifting block are arranged at intervals, and the first lifting block and the second lifting block are combined to form a seat surface of the seat; the seat with ventilation function also includes a driving mechanism for driving the first lifting block and the second lifting block to descend, and the first lifting block or the second lifting block descends to make the seat surface change from an airtight state to a breathable state; the driving mechanism includes: a first rack and a second rack passing through a row of the first lifting block and the second lifting block, and a push rod motor for driving the first rack and the second rack respectively, and the first rack and the second rack move toward each other or away from each other; the first rack is provided with a plurality of protrusions A for guiding the first lifting block to descend, and the second rack is provided with a plurality of protrusions B for guiding the second lifting block to descend; The first lifting block and the second lifting block are respectively provided with through grooves corresponding to the protrusion A and the protrusion B; the protrusion A is provided with an inclined surface A1 extending toward the lower right, and the protrusion B is provided with an inclined surface B1 extending toward the lower left; The seat frame includes left and right seat frames and front and rear baffle frames. The left seat frame and the right seat frame are detachably connected and fixed to each other through the front baffle frame and the rear baffle frame. The left and right seat frames cooperate with the front and rear baffle frames to form a storage space for accommodating the first lifting block and the second lifting block.

2. The chair seat with ventilation function according to claim 1, characterized in that: The left seat frame and the right seat frame each have a shielding portion extending away from the center of the seat frame for shielding the driving mechanism.

3. The chair seat with ventilation function according to claim 1, characterized in that: The front and rear gear frames and the two ends of the connecting plate are respectively provided with connecting protrusions, and the left and right seat frames are provided with connecting holes corresponding to the connecting protrusions.

4. The chair seat with ventilation function according to claim 1, characterized in that: A compression spring and a limiting member for adjusting the preload of the compression spring are provided between the first lifting block, the second lifting block and the connecting plate.

5. The chair seat with ventilation function according to claim 4, characterized in that: The first lifting block, the second lifting block and the connecting plate are respectively provided with positioning protrusions located at both ends of the spring.

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