Lifting folding chair

Abstract

The utility model discloses a lifting folding chair which is characterized by comprising a bottom frame, a backrest assembly, a seat cushion assembly and supporting legs, the backrest assembly comprises a lifting frame matched on the bottom frame in a lifting mode, a backrest arranged on the lifting frame and armrest assemblies rotationally connected to the left side and the right side of the lifting frame; a push rod motor for driving the lifting frame to move up and down is arranged between the underframe and the lifting frame, and rollers are arranged at the bottom of the underframe; the seat cushion assembly is rotationally connected to the bottom position of the lifting frame; the supporting legs comprise connecting plates arranged at the bottom of the bottom frame and supporting rods fixed to the connecting plates, and the supporting rods can be detached relative to the connecting plates. The utility model has the characteristics of convenient to use and transfer.

Description

Technical Field

[0001] The utility model relates to the field of living furniture, in particular to a lifting and folding chair. Background Art

[0002] With the gradual improvement of living standards, there are more and more seats with various functions on the market, such as lifting and folding, to meet the needs of different groups of people.

[0003] Most of the lift-type folding seats currently on the market have multiple connecting rod structures, which makes the overall structure more complicated and bulky. Even after folding, it is not easy to move, store or transport. Therefore, there is a need in the market for a seat that is easy to use and move. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a liftable folding chair, which is easy to use and move.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A lifting folding chair is characterized by comprising a base frame, a backrest assembly, a seat cushion assembly and supporting legs;

[0007] The backrest assembly includes a lifting frame that is lifted and matched on the base frame, a backrest arranged on the lifting frame, and armrest assemblies that are rotatably connected to the left and right sides of the lifting frame;

[0008] A push rod motor is provided between the base frame and the lifting frame to drive the lifting frame to move up and down, and a roller is provided at the bottom of the base frame;

[0009] The seat cushion assembly is rotatably connected to the bottom position of the lifting frame;

[0010] The support foot comprises a connecting plate arranged at the bottom of the base frame and a support rod fixed on the connecting plate, and the support rod is detachable relative to the connecting plate.

[0011] Preferably, the base frame is an upright U-shaped frame, the lifting frame is an inverted U-shaped frame, and two sides of the lifting frame are sleeved on two sides of the base frame.

[0012] Preferably, the armrest assembly includes an armrest seat provided on the lifting frame and an armrest hinged to the armrest seat.

[0013] Preferably, the seat cushion assembly includes a connecting seat arranged on the lifting frame, a seat cushion frame hinged to the connecting seat, and a seat cushion arranged on the seat cushion frame.

[0014] Preferably, the front end of the connecting plate is fixed on the base frame and has a positioning piece, and the rear end extends backward and has a positioning slot, the positioning slot extends forward and backward and has entry and exit positions and locking positions distributed forward and backward; the support rod is arranged to extend forward and backward, and has a positioning rod that cooperates with the positioning slot at the rear end of the support rod, the middle position of the support rod is located below the positioning piece, and has a positioning hole corresponding to the positioning piece, and a positioning pin is inserted between the positioning hole and the positioning piece to lock the positioning rod in the locking position.

[0015] The advantages of the utility model are:

[0016] 1. It can be folded and lifted for easy use by users;

[0017] 2. There are wheels at the bottom of the chassis. After the folding chair is folded and the support rod is removed, the folding chair can be dragged by the wheels for easy transportation;

[0018] 3. After the lifting folding chair is folded and the support rod is disassembled, the thickness in the front and back directions is small, the structure is light and easy to store. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a liftable folding chair provided in this embodiment;

[0020] Figure 2 A schematic diagram of the handrail assembly provided in this embodiment;

[0021] Figure 3 A schematic diagram of the seat cushion assembly provided in this embodiment;

[0022] Figure 4 This is a schematic diagram of the support legs provided in this embodiment. DETAILED DESCRIPTION

[0023] Combine Figures 1 to 4 The utility model lifting folding chair is further described.

[0024] A lifting folding chair is characterized by comprising a base frame 6, a backrest assembly 1, a seat cushion assembly 2 and supporting legs 4.

[0025] The backrest assembly 1 includes a lifting frame 11 that is lifted and matched to the base frame 6, a backrest 12 arranged on the lifting frame 11, and an armrest assembly 13 that is rotatably connected to the left and right sides of the lifting frame 11. A push rod motor 3 is provided between the base frame 6 and the lifting frame 11 to drive the lifting frame 11 to move up and down, and two rollers 5 are provided on the front side of the bottom of the base frame 6. The seat cushion assembly 2 is rotatably connected to the bottom position of the lifting frame 11. The support legs 4 have two groups, which are respectively fixed on the left and right sides of the bottom of the base frame 6. Each group of support legs 4 includes a connecting plate 41 provided at the bottom of the base frame 6 and a support rod 42 fixed on the connecting plate 41. The support rod 42 can be removed relative to the connecting plate 41.

[0026] Specifically, the base frame 6 is an upright U-shaped frame, and the lifting frame 11 is an inverted U-shaped frame. The lifting frame 11 is a hollow tubular structure, so the two sides of the lifting frame 11 are mounted on the two sides of the base frame 6, so that the lifting frame 11 can move up and down relative to the base frame 6.

[0027] Sliders are fixed on the four side walls at the top ends of both sides of the base frame 6 , which can ensure the stability of the fit between the lifting frame 11 and the base frame 6 and reduce the friction between the two.

[0028] The base of the push rod motor 3 is hinged on the bottom wall of the base frame 6 , and the upper end of the piston rod of the push rod motor 3 is hinged on the top wall of the lifting frame 11 , thereby driving the lifting frame 11 to move up and down relative to the base frame 6 .

[0029] The armrest assembly 13 includes an armrest seat 131 fixed to the side wall of the lifting frame 11 by bolts or welding, and an armrest 132 hingedly connected to the armrest seat 131. The armrest seat 131 has a U-shaped groove structure, with a connecting pin provided near the rear end of the armrest seat 131. The armrest 132 has a connecting hole near the rear end that mates with the connecting pin. The rear end top wall of the armrest seat 131 has a limit portion 1311 for the front end of the armrest 132 to abut against after rotating upward. The rear end bottom wall of the armrest seat 131 has an escape hole 1312 for the rear end of the armrest 132 to rotate into. When the armrest 132 is in the unfolded state, the armrest 132 can be supported on the bottom wall of the armrest seat 131, so that the armrest 132 remains in a horizontal or nearly horizontal state for the user's hand support; when the armrest 132 is not needed, the front end of the armrest 132 is rotated upward so that the armrest 132 is rotated to a vertical state and attached to the left and right sides of the lifting frame 11.

[0030] The seat cushion assembly 2 includes two connecting seats 21 arranged on the lifting frame 11, a seat cushion frame 23 hinged on the connecting seats 21, and a seat cushion 22 arranged on the seat cushion frame 23. The two connecting seats 21 are respectively fixed to the two side walls of the lifting frame 11 and are located on the lower side of the armrest seat 131. Each connecting seat 21 includes a base plate 211 and side plates 212 located on both sides of the base plate 211. The base plate 211 is attached to the rear side of the side wall of the lifting frame 11. The two side plates 212 extend forward to the front side of the lifting frame 11 and are provided with a hinge pin and a baffle 213 located on the lower side of the hinge pin. Triangular seats 231 are welded and fixed to the rear sides of both ends of the seat cushion frame 23. The upper end of the triangular seat 231 has a hinge hole that matches the hinge seat, thereby realizing the rotational connection of the seat cushion frame 23 on the connecting seat 21. When the seat cushion assembly 2 is in the unfolded position, the rear end of the seat cushion frame 23 rests against the baffle 213, so that the seat cushion frame 23 remains in a horizontal position for the user to sit on; when it is not needed, the seat cushion frame 23 is flipped upward so that the seat cushion rests on the backrest 12.

[0031] The connecting plate 41 extends forward and backward, with the front end of the connecting plate 41 fixed to the side wall of the bottom of the chassis 6 by bolts or welding. A positioning piece 43 is provided on the side of the front end of the connecting plate 41 facing away from the chassis 6, and the positioning piece 43 has a positioning hole. The rear end of the connecting plate 41 extends backward and has a positioning slot 411. The positioning slot 411 extends forward and backward and has a locking position 4111 and an entry and exit position 4112 distributed front and back. In other words, the connecting plate 41 has an inlet and outlet 4113 at the position corresponding to the front end of the positioning slot 411. The rear end of the positioning slot 411 is a closed structure. The support rod 42 is extended forward and backward, and has a foot at the bottom of the support rod 42. A positioning rod 421 that cooperates with the positioning groove 411 is provided at the rear end of the support rod 42. The middle position of the support rod 42 is located below the positioning piece 43, and also has a positioning hole. A positioning pin is inserted between the positioning hole of the support rod 42 and the positioning hole of the positioning piece 43 to lock the support rod 42 in the locking position 4111. When the positioning pin is inserted between the positioning piece 43 and the support rod 42, the positioning rod 421 is in the locking position 4111 of the positioning groove 411. At the same time, under the limiting action of the positioning pin, the support rod 42 cannot move forward or backward, so the support rod 42 is fixed on the connecting plate 41; after the positioning pin is removed from between the positioning piece 43 and the support rod 42, the support rod 42 can move forward, so that the positioning rod 421 moves from the locking position 4111 of the positioning groove 411 to the entry and exit position 4112, and then moves out of the positioning groove 411 through the inlet and outlet 4113, thereby realizing the positioning of the support rod 42 on the connecting plate 41.

[0032] When in use, the utility model can be folded and lifted for the convenience of the user; the bottom of the base frame 6 is provided with wheels, and after the lifting folding chair is folded and the support rod 42 is disassembled, the lifting folding chair can be dragged by the wheels for easy transportation; after the lifting folding chair is folded and the support rod 42 is disassembled, the thickness in the front and rear directions is small, the structure is light, and it is easy to store.

[0033] Unless otherwise specified, in this utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationships in this utility model are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can understand the specific meanings of the above terms in conjunction with the accompanying drawings and according to specific circumstances.

[0034] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this utility model should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0035] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A liftable folding chair, characterized by: It includes a base frame, a backrest assembly, a seat cushion assembly and support legs; The backrest assembly includes a lifting frame that is lifted and matched on the base frame, a backrest arranged on the lifting frame, and armrest assemblies that are rotatably connected to the left and right sides of the lifting frame; A push rod motor is provided between the base frame and the lifting frame to drive the lifting frame to move up and down, and a roller is provided at the bottom of the base frame; The seat cushion assembly is rotatably connected to the bottom position of the lifting frame; The support foot comprises a connecting plate arranged at the bottom of the base frame and a support rod fixed on the connecting plate, and the support rod is detachable relative to the connecting plate.

2. The liftable folding chair according to claim 1, characterized in that: The base frame is an upright U-shaped frame, the lifting frame is an inverted U-shaped frame, and two sides of the lifting frame are sleeved on two sides of the base frame.

3. The liftable folding chair according to claim 1, characterized in that: The armrest assembly comprises an armrest seat arranged on the lifting frame and an armrest hinged on the armrest seat.

4. The liftable folding chair according to claim 1, characterized in that: The seat cushion assembly comprises a connecting seat arranged on the lifting frame, a seat cushion frame hinged to the connecting seat, and a seat cushion arranged on the seat cushion frame.

5. The liftable folding chair according to claim 1, characterized in that: The front end of the connecting plate is fixed to the base frame and has a positioning piece, and the rear end extends backward and has a positioning slot. The positioning slot extends forward and backward and has entry and exit positions and locking positions distributed forward and backward; the support rod is arranged to extend forward and backward, and has a positioning rod that cooperates with the positioning slot at the rear end of the support rod. The middle position of the support rod is located below the positioning piece and has a positioning hole corresponding to the positioning piece. A positioning pin is inserted between the positioning hole and the positioning piece to lock the positioning rod in the locking position.

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