Multifunctional seat conversion device

Abstract

A multifunctional conversion seat device comprises a seat body, side armrest plates, a backrest plate, locking rods, long linkage rods, short linkage rods, backrest plate positioning screws, supporting block positioning screws, armrest plate supporting blocks, armrest plate positioning screws and locking driving screws, supporting rods are arranged at the bottom of the seat body, and supporting seats are arranged at the bottoms of the supporting rods; supporting block mounting tables are arranged at the bottom of the seat body and symmetrically distributed on the two sides of the supporting rod, armrest plate supporting blocks are arranged at the bottoms of the supporting block mounting tables, supporting block mounting shafts are arranged in the middles of the armrest plate supporting blocks, the supporting block mounting tables are rotationally connected with the supporting block mounting shafts, and supporting block positioning holes are formed in the side faces of the armrest plate supporting blocks. Supporting block positioning rings are arranged on the side face of the armrest plate supporting block, and two supporting block positioning screw holes are formed in the side face of each supporting block positioning ring.

Description

Technical Field

[0001] The present invention relates to the field of multifunctional conversion seats, and in particular to a multifunctional conversion seat device. Background Art

[0002] An existing patent (publication number: CN110384355A) proposes a multifunctional conversion seat device, including a sliding base, a lifting rod, a seat, armrests, a backrest and a flipper. The armrests are fixedly connected to both sides of the backrest, and the backrest includes a fixed plate and a movable plate. The bottom of the fixed plate is fixedly connected to the seat. However, this device "turns the legs under the armrests, and the movable plate becomes a note-taking platform for study." The movable plate is only used as a note-taking platform, which is limited in size and practicality. Summary of the Invention

[0003] In response to the above-mentioned deficiencies in the prior art, the present invention provides a multifunctional conversion seat device which is in a chair state in normal condition. When the device needs to be converted into a table state, the backrest board and the side armrest boards together form a table top. The spliced ​​table top is larger in volume, more convenient to use, and more practical.

[0004] The purpose of the present invention is to be achieved through the following technical solutions: The seat is fixed with a plurality of locking members, each of which is fixed with a plurality of locking members, and the locking member is fixed with a plurality of locking members. The support block positioning screw hole is threadedly connected, and the support block positioning screw is inserted into the support block positioning hole. The bottom of the armrest plate support block is provided with an armrest plate support head, and the end of the armrest plate support head is provided with an armrest plate positioning slider. A backrest plate is provided on one side of the seat body, and a side armrest plate is provided on the side of the seat body. Two groups of side armrest plates are distributed on both sides of the seat body and the backrest plate, and the side surfaces of the side armrest plates are provided with two armrest plate positioning slide grooves and four armrest plate positioning holes. The two groups of armrest plate positioning slide grooves are symmetrically distributed on both sides of the side armrest plates, and the two groups of armrest plate positioning hole array groups are distributed on both sides of the armrest plate positioning slide groove array group. Each group of armrest plate positioning hole array group is composed of two armrest plate positioning holes, and the two armrest plate positioning holes of each group of armrest plate positioning hole array group are arranged symmetrically up and down, the armrest plate positioning slider is adapted to the armrest plate positioning slide groove, the armrest plate positioning slider is connected to the armrest plate positioning slide groove, the armrest plate positioning slider slides inside the armrest plate positioning slide groove, and an armrest screw mounting platform is provided on the side of the armrest plate support head.

[0005] The armrest screw mounting platform is threadedly connected to the armrest plate positioning screw, the armrest plate positioning screw corresponds to the position of an armrest plate positioning hole, the armrest plate positioning screw is inserted into the armrest plate positioning hole, the side armrest plate is provided with a locking rod mounting groove, the locking rod mounting groove bottom is provided with a locking rod positioning groove, the locking rod positioning groove bottom is provided with a locking screw mounting groove, the locking screw mounting groove bottom is provided with a locking drive block connecting groove, the locking rod is adapted to the locking rod mounting groove, the locking rod is connected to the locking rod mounting groove, the locking rod slides inside the locking rod mounting groove, the locking rod bottom is provided with a locking rod positioning platform, the locking rod positioning platform is adapted to the locking rod positioning groove, the locking rod positioning platform is connected to the locking rod positioning groove, the locking rod positioning platform slides inside the locking rod positioning groove, the locking drive screw is rotatably connected with the locking screw mounting groove, the locking rod is threadedly connected to the locking drive screw inside, the locking rod is

[0006] Beneficial effects: 1. The multifunctional conversion seat of the present invention is in a chair state in normal state. When the device needs to be converted into a table state, the backrest board and the side armrest board together form a table top. The spliced ​​table top is larger in volume, more convenient to use, and more practical.

[0007] 2. When the present invention is in the table state, the side armrest panels and the backrest panels are connected by means of the cooperation between multiple sets of locking rods and locking rod connecting grooves, and the force is balanced, so that the connection between the side armrest panels and the backrest panels is more stable, the stability is good, and the use process is safer.

[0008] 3. The armrest support block of the present invention is L-shaped. When in the seat state, the top of the armrest support block is pressed against the bottom of the seat body. When in the table state, the armrest support block arm is pressed against the side of the seat body. Therefore, when the device is transformed from a table to a chair or from a chair to a table, the armrest support block can provide effective positioning, making the functional conversion process of this device more accurate and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural schematic diagram of a multifunctional conversion seat device according to the present invention.

[0010] Figure 2 This is a bottom view of the multifunctional conversion seat device described in the present invention.

[0011] Figure 3 The figure is a partial side view of a multifunctional conversion seat device according to the present invention.

[0012] Figure 4 This is an enlarged view of the local structure of a multifunctional conversion seat device described in the present invention.

[0013] Figure 5 This is a structural diagram of the small table state of a multifunctional conversion seat device described in the present invention.

[0014] Figure 6 This is a bottom-up structural diagram of a multifunctional convertible chair device according to the present invention with a small table.

[0015] Figure 7 This is a schematic diagram of the seat main body structure of the present invention.

[0016] Figure 8 This is a structural schematic diagram of the backrest board described in the present invention.

[0017] Figure 9 This is a schematic structural diagram of the armrest support block according to the present invention.

[0018] Figure 10 This is a schematic structural diagram of the side armrest panel described in the present invention.

[0019] Figure 11 This is a schematic diagram of the locking rod structure of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and examples: Example 1: A multifunctional conversion seat device includes a seat body 1, a side armrest board 4, a backrest board 5, a locking rod 10, a linkage long rod 13, a linkage short rod 14, a backrest board positioning screw 21, a support block positioning screw 25, an armrest board support block 28, an armrest board positioning screw 31, and a locking drive screw 37. The seat body 1 has a support rod 2 at the bottom, a support seat 3 at the bottom of the support rod 2, and a support block mounting platform 26 at the bottom of the seat body 1. Two groups of support block mounting platforms 26 are symmetrically distributed on both sides of the support rod 2. An armrest board support block 28 is provided at the bottom of the support block mounting platform 26. The middle part of the armrest board support block 28 has a support block mounting shaft 27. The armrest board support block 28 is L-shaped. When in the seat state, the top of the armrest board support block 28 is pressed tightly against the seat At the bottom of the main body 1, when it is in the table state, the armrest support block 28 is pressed against the side of the seat body 1, so that when the device is changed from a table to a chair or from a chair to a table, the armrest support block 28 can provide effective positioning, making the functional conversion process of this device more accurate and quick, and effectively preventing dislocation or slipping. The support block mounting platform 26 is rotatably connected to the support block mounting shaft 27, and the side of the armrest support block 28 has a support block positioning hole 24, and the side of the armrest support block 28 is provided with a support block positioning ring 22, and each side of the support block positioning ring 22 has two support block positioning screw holes 23, and the angle between the two support block positioning screw holes 23 and the center of the support block positioning ring 22 is 90°, and one of the two groups of support block positioning screw holes 23 is connected to the support block positioning ring 22. The support block positioning holes 24 correspond in position, the support block positioning screws 25 are threadedly connected to the support block positioning screw holes 23, and the support block positioning screws 25 are inserted into the support block positioning holes 24. The bottom of the armrest support block 28 has an armrest support head 29, and the end of the armrest support head 29 has an armrest positioning slider 30. A backrest board 5 is provided on one side of the seat body 1, and a side armrest board 4 is provided on the side of the seat body 1. Two groups of side armrest boards 4 are distributed on both sides of the seat body 1 and the backrest board 5. When in the table state, the side armrest board 4 and the backrest board 5 rely on the cooperation connection between multiple groups of locking rods 10 and locking rod connecting grooves 8 to make the connection between the side armrest board 4 and the backrest board 5 more stable and safer in use. The side armrest board 4 has two armrest board positioning The slide groove 11 and the four armrest plate positioning holes 12, this multifunctional conversion seat is in a seat state in normal state, when the device needs to be converted into a table state, the backrest board 5 and the side armrest board 4 together constitute a desktop, the desktop formed by splicing is larger in volume, more convenient to use, and more practical, two groups of armrest plate positioning slide grooves 11 are symmetrically distributed on both sides of the side armrest board 4, two groups of armrest plate positioning hole 12 array groups are distributed on both sides of the armrest plate positioning slide groove 11 array group, each group of armrest plate positioning hole 12 array group is composed of two armrest plate positioning holes 12, and the two armrest plate positioning holes 12 of each group of armrest plate positioning hole 12 array group are symmetrically arranged up and down, the armrest plate positioning slider 30 is adapted to the armrest plate positioning slide groove 11, and the armrest plate positioning slider 30 is connected to the armrest plate positioning slide groove 11,The armrest plate positioning slider 30 slides inside the armrest plate positioning slot 11, and the side of the armrest plate support head 29 is provided with an armrest screw mounting platform 32.

[0021] Example 2: The armrest screw mounting platform 32 of the present invention is threadedly connected with the armrest plate positioning screw 31, the armrest plate positioning screw 31 corresponds to the position of an armrest plate positioning hole 12, the armrest plate positioning screw 31 is inserted into the armrest plate positioning hole 12, the side armrest plate 4 has a locking rod mounting groove 9 inside, the locking rod mounting groove 9 has a locking rod positioning groove 38 at the bottom, the locking rod positioning groove 38 has a locking screw mounting groove 36 at the bottom, the locking screw mounting groove 36 has a locking drive block connecting groove 33 at the bottom, the locking rod 10 is adapted to the locking rod mounting groove 9, the locking rod 10 is connected to the locking rod mounting groove 9, and the locking rod 10 is in The locking rod mounting groove 9 slides inside, and the locking rod 10 has a locking rod positioning platform 39 at the bottom, which is adapted to the locking rod positioning groove 38. The locking rod positioning platform 39 is connected to the locking rod positioning groove 38. The locking rod positioning platform 39 slides inside the locking rod positioning groove 38. The locking drive screw 37 is rotatably connected to the locking screw mounting groove 36. The locking rod 10 is threadedly connected to the locking drive screw 37. The locking drive screw 37 has a locking drive block 34 at the bottom, which is adapted to the locking drive block connecting groove 33. The locking drive block 34 is connected to the locking drive block connecting groove 33.

[0022] Example 3: The locking drive block 34 described in the present invention rotates inside the locking drive block connecting groove 33, and a locking drive handle 35 is provided at the bottom of the locking drive block 34. A docking block 7 is provided at the top of the side armrest plate 4. The seat body 1 has a backrest positioning block 19 on the side facing the docking groove 6. The backrest positioning block 19 is pressed against the surface of the backrest plate 5. The backrest positioning block 19 is threadedly connected to the backrest positioning screw 21. A backrest positioning hole 20 is provided at the bottom of the backrest plate 5. The backrest positioning screw 21 corresponds to the position of the backrest positioning hole 20. The backrest positioning screw 21 is inserted into the backrest positioning hole 20. There are docking grooves 6 on both sides of the backrest plate 5. The docking grooves 6 are adapted to the docking block 7. A locking rod connecting groove 8 is provided at the top of the docking groove 6. The locking rod connecting groove 8 is adapted to the locking rod 10.

[0023] Example 4: The docking groove 6 described in the present invention has a connecting rod avoidance groove 40 at the bottom, a top long rod mounting groove 18 at the top of the connecting rod avoidance groove 40, and a bottom short rod mounting groove 15 at the bottom. Both sides of the seat body 1 have a top short rod mounting groove 16 and a bottom long rod mounting groove 17. The top short rod mounting groove 16 is located on the side close to the docking groove 6, and the bottom long rod mounting groove 17 is located on the side of the top short rod mounting groove 16 away from the docking groove 6. The distance between the bottom long rod mounting groove 17 and the top short rod mounting groove 16 is smaller than the distance between the top long rod mounting groove 18 and the bottom short rod mounting groove 15.

[0024] Example 5: The length of the linkage long rod 13 described in the present invention is greater than that of the linkage short rod 14. The top of the linkage long rod 13 is rotatably connected to the top long rod mounting groove 18, the bottom of the linkage long rod 13 is rotatably connected to the bottom long rod mounting groove 17, the top of the linkage short rod 14 is rotatably connected to the top short rod mounting groove 16, and the bottom of the linkage short rod 14 is rotatably connected to the bottom short rod mounting groove 15.

[0025] Example 6: The installation steps of the present invention are as follows: the support block mounting shaft 27 of the armrest support block 28 is rotatably connected to the support block mounting platform 26 of the seat body 1, the support block positioning screw 25 is threadedly connected to the support block positioning screw hole 23 of the seat body 1, the support block positioning screw 25 at the corresponding position is inserted into the support block positioning hole 24 of the armrest support block 28, the armrest positioning groove 11 of the side armrest plate 4 is sleeved on the outside of the armrest positioning slider 30 of the armrest support block 28, the armrest positioning screw 31 is threadedly connected to the armrest screw mounting platform 32 of the armrest support block 28, the armrest positioning screw 31 is inserted into the armrest positioning hole 12 of the corresponding position of the side armrest plate 4, the locking rod 10 is inserted into the locking rod mounting groove 9 of the side armrest plate 4, and the locking rod positioning platform 39 of the locking rod 10 is inserted into the locking rod positioning platform 39 of the side armrest plate 4 Inside the slot 38, the locking drive screw 37 is rotatably connected to the locking screw mounting slot 36 of the side armrest plate 4, so that the locking drive block 34 of the locking drive screw 37 is rotatably connected to the locking drive block connecting slot 33 of the side armrest plate 4, so that the inside of the locking rod 10 is threadedly connected to the locking drive screw 37, the bottom of the linkage long rod 13 is rotatably connected to the bottom long rod mounting slot 17 of the seat body 1, the top of the linkage long rod 13 is rotatably connected to the top long rod mounting slot 18 of the docking slot 6, the top of the linkage short rod 14 is rotatably connected to the top short rod mounting slot 16 of the seat body 1, the bottom of the linkage short rod 14 is rotatably connected to the bottom short rod mounting slot 15 of the docking slot 6, the backrest plate positioning screw 21 is threadedly connected to the backrest plate positioning block 19 of the seat body 1, and the backrest plate positioning screw 21 is inserted into the backrest plate positioning hole 20 of the backrest plate 5. The installation of this device is completed.

[0026] Working method: Under normal conditions, this device is in the chair state. When the device is changed to the table state, first loosen the armrest plate positioning screw 31, drive the side armrest plate 4 downward, make the armrest plate positioning screw 31 correspond to the position of the armrest plate positioning hole 12 at the upper part, then tighten the armrest plate positioning screw 31 and insert it into the corresponding armrest plate positioning hole 12, then loosen the support block positioning screw 25, disconnect the support block positioning screw 25 from the support block positioning screw hole 23 at the corresponding position, bend the side armrest plate 4 upward to make the side armrest plate 4 parallel, and then tighten the support block positioning screw 2 5 so that the support block positioning screws 25 are inserted into the corresponding support block positioning screw holes 23. At this time, the side armrest board 4 is positioned. Then, loosen the backrest board positioning screws 21 to disconnect the backrest board positioning screws 21 from the backrest board positioning holes 20. Then, bend the backrest board 5 downward until the top of the backrest board 5 is parallel to the top of the side armrest board 4. The docking block 7 of the side armrest board 4 is inserted into the docking groove 6 of the backrest board 5. Turn the locking drive handle 35 to extend the locking rod 10 and insert it into the locking rod connecting groove 8. The backrest board 5 is positioned. At this time, the device is completely transformed into a table state.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional conversion seat device, characterized in that : It includes a seat body (1), a side armrest board (4), a backrest board (5), and a locking rod (10). The seat body (1) has a support rod (2) at the bottom, and a support seat (3) at the bottom of the support rod (2). The seat body (1) has a support block mounting platform (26) at the bottom, and two groups of support block mounting platforms (26) are symmetrically distributed on both sides of the support rod (2). An armrest board support block (28) is provided at the bottom of the support block mounting platform (26). The middle part of the armrest board support block (28) has a support block mounting shaft (27). The support block mounting platform (26) is rotatably connected to the support block mounting shaft (27). The armrest board support The side of the block (28) has a support block positioning hole (24), and the side of the armrest support block (28) is provided with a support block positioning ring (22). Each side of the support block positioning ring (22) has two support block positioning screw holes (23), and the angle between the two support block positioning screw holes (23) and the center of the support block positioning ring (22) is 90 degrees. One of the two groups of support block positioning screw holes (23) corresponds to the position of the support block positioning hole (24), and the support block positioning screw (25) is threadedly connected to the support block positioning screw hole (23). The support block positioning screw (25) is inserted into the inside of the support block positioning hole (24).

2. A multifunctional conversion seat device according to claim 1, characterized in that The armrest support block (28) has an armrest support head (29) at the bottom, and an armrest positioning slider (30) at the end of the armrest support head (29). A backrest (5) is provided on one side of the seat body (1), and a side armrest (4) is provided on the side of the seat body (1). Two groups of side armrests (4) are distributed on both sides of the seat body (1) and the backrest (5). The side of the side armrest (4) has two armrest positioning grooves (11) and four armrest positioning holes (12). The two groups of armrest positioning grooves (11) are symmetrically distributed on both sides of the side armrest (4), and the two groups of armrest positioning holes (12) array groups are distributed on both sides of the armrest positioning groove (11) array group.

3. A multifunctional conversion seat device according to claim 2, characterized in that : Each group of armrest plate positioning holes (12) array groups is composed of two armrest plate positioning holes (12), and the two armrest plate positioning holes (12) of each group of armrest plate positioning holes (12) array groups are arranged symmetrically in an upper and lower direction. The armrest plate positioning slider (30) is adapted to the armrest plate positioning chute (11), the armrest plate positioning slider (30) is connected to the armrest plate positioning chute (11), the armrest plate positioning slider (30) slides inside the armrest plate positioning chute (11), and the side of the armrest plate support head (29) is provided with an armrest screw mounting platform (32).

4. A multifunctional conversion seat device according to claim 3, characterized in that : The handrail screw mounting platform (32) is threadedly connected to the handrail plate positioning screw (31), the handrail plate positioning screw (31) corresponds to the position of an handrail plate positioning hole (12), the handrail plate positioning screw (31) is inserted into the inside of the handrail plate positioning hole (12), the side handrail plate (4) has a locking rod mounting groove (9), the bottom of the locking rod mounting groove (9) has a locking rod positioning groove (38), the bottom of the locking rod positioning groove (38) has a locking screw mounting groove (36), the bottom of the locking screw mounting groove (36) has a locking drive block connecting groove (33), the locking rod (10) is adapted to the locking rod mounting groove (9), the locking rod (10) is connected to the locking rod mounting groove (9), and the locking rod (10) slides inside the locking rod mounting groove (9).

5. A multifunctional conversion seat device according to claim 4, characterized in that The bottom of the locking rod (10) is provided with a locking rod positioning platform (39), the locking rod positioning platform (39) is adapted to the locking rod positioning groove (38), the locking rod positioning platform (39) is connected to the locking rod positioning groove (38), the locking rod positioning platform (39) slides inside the locking rod positioning groove (38), the locking drive screw (37) is rotationally connected to the locking screw mounting groove (36), the inside of the locking rod (10) is threadedly connected to the locking drive screw (37), the bottom of the locking drive screw (37) is provided with a locking drive block (34), the locking drive block (34) is adapted to the locking drive block connecting groove (33), and the locking drive block (34) is connected to the locking drive block connecting groove (33).

6. A multifunctional convertible seat device according to claim 5, characterized in that The locking drive block (34) rotates inside the locking drive block connecting groove (33), the locking drive block (34) has a locking drive handle (35) at the bottom, the side armrest plate (4) has a docking block (7) at the top, the seat body (1) has a backrest plate positioning block (19) on the side facing the docking groove (6), the backrest plate positioning block (19) is pressed against the surface of the backrest plate (5), and the backrest plate positioning block (19) is threadedly connected to the backrest plate positioning screw (21).

7. The multifunctional convertible seat device according to claim 1, characterized in that The backrest plate (5) has a backrest plate positioning hole (20) at the bottom, the backrest plate positioning screw (21) corresponds to the position of the backrest plate positioning hole (20), and the backrest plate positioning screw (21) is inserted into the backrest plate positioning hole (20). The backrest plate (5) has docking grooves (6) on both sides, the docking grooves (6) are adapted to the docking blocks (7), and the top of the docking groove (6) has a locking rod connecting groove (8), and the locking rod connecting groove (8) is adapted to the locking rod (10).

8. The multifunctional convertible seat device according to claim 1, characterized in that The bottom of the docking groove (6) has a connecting rod avoidance groove (40), the top of the connecting rod avoidance groove (40) has a top long rod mounting groove (18), the bottom of the connecting rod avoidance groove (40) has a bottom short rod mounting groove (15), both sides of the seat body (1) have a top short rod mounting groove (16) and a bottom long rod mounting groove (17), the top short rod mounting groove (16) is located on the side close to the docking groove (6), the bottom long rod mounting groove (17) is located on the side of the top short rod mounting groove (16) away from the docking groove (6), and the distance between the bottom long rod mounting groove (17) and the top short rod mounting groove (16) is smaller than the distance between the top long rod mounting groove (18) and the bottom short rod mounting groove (15).

9. The multifunctional convertible seat device according to claim 1, characterized in that : The length of the linkage long rod (13) is greater than the length of the linkage short rod (14), the top of the linkage long rod (13) is rotatably connected to the top long rod mounting groove (18), the bottom of the linkage long rod (13) is rotatably connected to the bottom long rod mounting groove (17), the top of the linkage short rod (14) is rotatably connected to the top short rod mounting groove (16), and the bottom of the linkage short rod (14) is rotatably connected to the bottom short rod mounting groove (15).

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