CN205041636U - Automatic electronic round folding wheel -chair - Google Patents

Abstract

An automatic folding electric wheelchair, which adopts an electric way to automatically fold the whole body, and the telescopic operation of the electric push rod can be operated by remote control. The user does not need to contact the electric wheelchair, and the electric wheelchair can be folded automatically as a whole. , through the backward movement of the center of gravity of the wheelchair, the rear anti-rolling wheels finally land on the ground, so that the folded wheelchair can stand up automatically without manual support. In this way, the electric wheelchair can be folded up automatically as a whole without manual operation, and it can stand up automatically, the folding action is automatic and simple, the labor intensity is extremely small, and it is very convenient.

Description

Automatic folding electric wheelchair

technical field

The utility model relates to an electric wheelchair or an electric scooter, in particular to an automatic folding electric wheelchair.

Background technique

The electric wheelchair has a large volume, and the electric wheelchair that can be folded as a whole can make the volume of the electric wheelchair smaller, which is convenient for transportation and storage. At present, the known overall folding electric wheelchairs are all manually operated to complete the folding process. The folding actions are many and cumbersome, and after the folding is completed, the whole body lies flat on the ground, and it needs manpower to stand up. Said, labor-intensive, very inconvenient.

Contents of the invention

In order to overcome the fact that the existing overall folding electric wheelchairs are all manually operated to complete the folding process, the folding actions are many and cumbersome, and after the folding is completed, the whole body lies flat on the ground, and it needs manpower to stand up. In terms of labor intensity, it is very inconvenient. The utility model provides an automatic folding electric wheelchair. It can be operated by remote control, the user does not need to contact the electric wheelchair, the electric wheelchair can be folded automatically as a whole, and in the process of folding, the center of gravity of the wheelchair moves backwards, and finally the rear anti-tilt wheel touches the ground, so that The folded wheelchair can stand up automatically, without the need for manual support. In this way, the electric wheelchair can be folded up automatically as a whole without manpower operation, and it can stand up automatically, the folding action is automatic and simple, the labor intensity is extremely small, and it is very convenient.

The technical solution adopted by the utility model to solve the technical problems is: an automatic folding electric wheelchair, including a driving body assembly, an armrest assembly, a seat cushion assembly, a rocker arm group, a connecting rod assembly, a pedal, Backrest assembly, retractor assembly, front body assembly, electric push rod.

The driving main body assembly is provided with a driving main body, the driving main body is a U-shaped structure, a hinge hole P is provided to connect with the electric push rod, a pin shaft roller is provided to connect the backrest assembly, and hinge holes N are symmetrically arranged on both sides to connect The armrest assembly is symmetrically provided with roller B to connect the seat cushion assembly, symmetrically provided with hinge holes O to connect with the rocker arm group, symmetrically provided with chute D on both sides to connect with the front body assembly, and symmetrically provided with drive wheels on both sides, Both sides are symmetrically provided with anti-tilt wheels, and a battery box assembly capable of accommodating batteries is also provided on it.

The armrest assembly is composed of two identical armrests, which are placed symmetrically. A controller is installed on one of the armrests. The armrest assembly is provided with a hinged hole B to connect with the retractor assembly. The armrest assembly is provided with a hinged hole A. Connect with the drive body.

The seat cushion assembly is a frame structure, with a chute A in the middle to connect the rollers of the connecting rod assembly, a hinge pin shaft connected to the rocker arm set symmetrically on both sides, and a chute B and rollers on the drive body symmetrically. The columns B are connected, and the hinge holes C are symmetrically arranged on both sides to connect the backrest assembly.

The rocker arm group is composed of two identical rocker arms, which are symmetrically placed. One end of the rocker arm group is provided with a hinge hole D to connect with the seat cushion assembly, and the other end is provided with a hinge hole F to connect with the driving body. The hinge hole E is connected with the front body assembly.

The backrest assembly is a frame structure, both sides are symmetrically provided with chute C to connect with the pin roller on the driving body, and both sides are symmetrically provided with hinge holes K to connect the seat cushion assembly.

The front body assembly is a U-shaped structure, with a hinge hole Q in the middle to connect to the electric push rod, a hinge hole R on both sides to connect to the pedals, and a hinge hole S on both sides to connect with the middle hinge on the rocker arm group. The holes are connected with each other, the rollers C are symmetrically arranged on both sides to connect with the driving main body, and the pin shafts are symmetrically arranged on both sides to connect with the retractor assembly.

One end of the connecting rod assembly is provided with a hinge hole G to be connected with the pedal, and the other end is provided with a roller A to be connected with the middle chute of the seat cushion assembly.

The pedal is provided with a hinged hole H connected with the connecting rod assembly through a pin, and both sides are symmetrically provided with a hinged hole J connected with the front vehicle body assembly.

Described expander assembly is provided with hinged hole M and is connected with handrail assembly by pin, and the other end of expander assembly is provided with hinged hole L and is connected with pin on the front vehicle frame assembly, and expander can stretch.

The electric push rod is provided with an articulation hole T to connect the front vehicle body assembly, and an articulation hole U is provided to connect with the driving main body, and the electric telescopic rod can be electrically telescopic.

The automatic folding process is as follows:

In the state of use, using remote control, when the motor of the electric push rod is energized and running, the push rod of the electric push rod will shrink back, because the hinge hole T of the electric push rod is connected to the hinge hole Q of the front frame assembly, so that the front car The rack assembly moves backwards. Simultaneously the following campaigns will be launched:

1. The roller C and the pin shaft on the front frame assembly roll and slide upward in the chute D on the drive body.

2. The hinged hole S on the front frame assembly and the hinged hole E on the rocker arm group are connected with a pin and rotate around the hinged hole O on the drive body.

3. Under the action of the hinge hole D on the rocker arm group, the seat cushion assembly rotates around the hinge hole O, and the rear chute B of the seat cushion assembly moves backward on the roller B on the drive body Swipe down and turn simultaneously.

4. Under the action of the hinge hole K and the hinge hole C on the seat cushion assembly, the backrest assembly rotates around the hinge hole C on one side, and at the same time, the chute C on the backrest assembly is on the driving body Slide up and down on the roller slider and rotate at the same time.

5. When the pin shaft on the front frame assembly slides upwards in the chute D of the driving body, the hinge hole L of the telescoping assembly also moves upwards at the same time, and the telescopic rod of the telescoping assembly shrinks inwards to the minimum When dimensioning, under the action of the hinge hole M on the retractor assembly and the hinge hole B on the armrest assembly, the armrest assembly rotates around the hinge hole A on the armrest assembly.

6. When the seat cushion assembly 2 moves upwards and backwards, the roller A on the connecting rod assembly slides backward and upward in the chute A of the seat cushion assembly 2, and at the same time, the hinge hole G on the connecting rod assembly is the same as that of the pedal Under the interaction of the hinge holes on the plate, the pedals will rotate upward around the hinge holes R on the front frame assembly, and at the same time move backward with the front frame assembly.

7. During the folding process, the position of the center of gravity of the overall wheelchair will continue to move backwards with the degree of folding. When the center of gravity exceeds the vertical center of gravity of the driving wheels, the whole vehicle will fall backwards, and the rear anti-rolling wheels will touch the ground at the same time. With the support of three driving wheels and two anti-tilt wheels, the wheelchair can stand up by itself.

The opposite is unfolding.

The automatic folding electric wheelchair involved in the utility model can also be used for manual folding. The switch on the electric push rod is placed in the manual state or the electric push rod is canceled. Manual folding is also more convenient and easy, and it only needs one action to fold And to unfold the electric wheelchair, in the state of use, grasp the upper part of the backrest assembly with one hand, and the front part of the seat cushion assembly with the other hand, and fold the electric wheelchair inward at the same time, and vice versa After the folded electric wheelchair is pushed outward between the seat cushion assembly and the backrest assembly with both hands, the electric wheelchair can be unfolded.

In this way, the automatic folding electric wheelchair utilizes the expansion and contraction of the electric push rod, adopts the electric method to automatically fold the whole body, and the expansion and contraction of the electric push rod can be operated by remote control. Moreover, during the folding process, the center of gravity of the wheelchair moves backwards, and finally the rear anti-rolling wheels touch the ground, so that the folded wheelchair can stand up automatically without manual support. In this way, the electric wheelchair can be folded up automatically as a whole, without manual operation, can stand up automatically, the folding action is automatic and simple, the labor intensity is extremely small, and the purpose is very convenient.

The beneficial effect of the utility model is that the electric wheelchair can be automatically folded as a whole, and can stand up automatically without manpower operation, and the labor intensity is very small, which is very convenient.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the use state diagram of the utility model embodiment.

Fig. 2 is a side view of the usage state of the embodiment of the utility model.

Fig. 3 is a side view of the folded state of the embodiment of the utility model.

Fig. 4 is a side view of the folded state of the embodiment of the utility model.

In the figure 1 armrest assembly, 11 hinge hole A, 12 hinge hole B, 13 controller, 2 seat cushion assembly, 21 chute A, 22 chute B, 23 hinge hole C, 24 hinge pin, 3 rocker arm Group, 31 hinge hole D, 32 hinge hole E, 33 hinge hole F, 4 link assembly, 41 hinge hole G, 42 roller A, 5 pedal, 51 hinge hole H, 52 hinge hole J, 6 back Relying assembly, 61 chute C, 62 hinge hole K, 7 retractor assembly, 71 hinge hole L, 72 sliding rod, 73 hinge hole M, 8 drive body assembly, 80 drive body, 81 hinge hole N, 82 Hinge hole O, 83 hinge hole P, 84 chute D, 85 roller B, 86 pin roller, 87 drive wheel, 88 battery box assembly, 89 anti-tilt wheel, 9 front body assembly, 91 roller C, 92 pin shaft, 93 hinge hole Q, 94 universal rubber wheel, 95 hinge hole R, 96 hinge hole S, 10 electric push rod, 101 hinge hole T, 102 hinge hole U, 103 electric telescopic rod.

detailed description

In order to enable the examiner to further understand the purpose of the utility model, a preferred embodiment is now attached as a detailed description as follows. This embodiment is only used to illustrate the technical solution of the utility model, not to limit the utility model.

In the embodiment shown in Fig. 1 and Fig. 2, a self-folding electric wheelchair includes a driving body assembly 8, an armrest assembly 1, a seat cushion assembly 2, a rocker arm group 3, a connecting rod assembly 4, and a pedal Plate 5, backrest assembly 6, retractor assembly 7, front car body assembly 9, electric push rod 10.

The driving main body assembly 8 is provided with a driving main body 80, the driving main body 80 is a U-shaped structure, a hinge hole P83 is provided to connect with the hinge hole U102 of the electric push rod 10, and a pin shaft roller 86 is provided to connect the back to the assembly. The chute C61 of 6 is symmetrically provided with the hinge hole N81 on both sides to connect the hinge hole A11 of the handrail assembly 1, and the roller B85 is symmetrically provided on both sides to connect the chute B22 of the seat cushion assembly 2, and the hinge hole O82 is symmetrically provided on both sides Pin connects the hinged hole F33 of rocker arm group 3, both sides are symmetrically provided with the roller C91 of chute D84 connecting front car body assembly 9, both sides are symmetrically provided with drive wheel 87, both sides are symmetrically provided with anti-tilt wheel 89, and also There is a battery box assembly 88 that can accommodate batteries.

The armrest assembly 1 is composed of two identical armrests, which are symmetrically placed, and a controller 13 is installed on one of the armrests, and the armrest assembly 1 is provided with a hinged hole B12 which is pin-connected with the hinged hole M73 on the expander assembly 7 , the armrest assembly 1 is provided with a hinged hole A11 and pinned to the hinged hole N81 on the drive body 80 .

The seat cushion assembly 2 is a frame structure, with a chute A21 connected to the roller A42 of the connecting rod assembly 4 in the middle, a hinge pin shaft 24 connected to the rocker arm group 3 is symmetrically arranged on both sides, and a chute B22 is symmetrically arranged on both sides. The rollers B on the driving body 80 are connected with each other, and the hinge holes C23 are symmetrically arranged on both sides to connect with the hinge holes K62 on the backrest assembly 6 for pin connection.

The rocker arm group 3 is composed of two identical rocker arms, which are symmetrically placed. One end of the rocker arm group 3 is provided with a hinge hole D31 to connect with the pin shaft 24 connected to the seat cushion assembly 2, and the other end is provided with a hinge hole. F33 is pin-connected with the hinged hole O82 on the drive main body 80, and hinged hole E32 is pin-connected with the hinged hole S96 on the front vehicle body assembly 9 in the middle.

The backrest assembly 6 is a frame structure, and both sides are symmetrically provided with a chute C61 to connect with the pin roller 86 on the driving body 80, and both sides are symmetrically provided with hinged holes K62 connected to the hinged holes C23 on the seat cushion assembly 2 pin connection.

The front car body assembly 9 is a U-shaped structure, and the hinge hole Q93 is provided in the middle to connect with the hinge hole T101 on the electric push rod 10. Both sides are symmetrically provided with the hinge hole R95 and the hinge hole J52 pin on the pedal 5. Connection, both sides are symmetrically provided with the hinge hole S96 to connect with the middle hinge hole E32 on the rocker arm group 3, both sides are symmetrically provided with the roller C91 to connect with the chute D84 of the driving main body 80, and both sides are symmetrically provided with the pin shaft 92 and the retractor The hinge hole L71 of the assembly 7 is connected.

One end of the connecting rod assembly 4 is provided with a hinge hole G41 for pin connection with the hinge hole H51 on the pedal 5 , and the other end is provided with a roller A42 connected with the middle chute A21 of the seat cushion assembly 3 .

The pedal 5 is provided with a hinged hole H51 pinned to the hinged hole G41 on the connecting rod assembly 4, and both sides are symmetrically provided with hinged holes J52 connected to the hinged hole R95 on the front body assembly 9.

The retractor assembly 7 is provided with a hinge hole M73 to connect with the hinge hole B12 on the armrest assembly 1, and the other end of the retractor assembly is provided with a hinge hole L71 and the pin shaft 92 on the front frame assembly 9. Connected, the expander can expand and contract.

The electric push rod 10 is provided with an articulation hole T101 to connect with the articulation hole Q93 on the front body assembly 9 for pin connection, and is provided with an articulation hole U102 for pin connection with the articulation hole P83 on the driving body 80, and the electric telescopic rod 103 can be stretched .

In the embodiment shown in Figure 3, the automatic folding process is as follows:

In the state of use, using remote control, when the motor of the electric push rod 10 is energized and running, the push rod 103 of the electric push rod 10 will shrink back, because the hinge point 101 of the electric push rod 10 is connected to the hinge hole of the front frame assembly 9 Q93, making the front frame assembly 9 move backward. Simultaneously the following campaigns will be launched:

1. The roller C and the pin shaft 92 on the front frame assembly 9 roll and slide upward in the chute D84 on the drive main body 80 .

2. The hinge hole S96 on the front frame assembly 9 and the hinge hole E32 on the rocker arm group 3 rotate around the hinge hole O82 on the driving body 80 at the same time.

3. Under the action of the hinge hole D31 on the rocker arm group 3 of the seat cushion assembly 2, the pin shaft 24 rotates around the hinge hole O82, and the rear chute B22 of the seat cushion assembly 2 drives the roller on the main body 80 Swipe backwards and downwards on the B85 and rotate at the same time.

4. Under the action of the hinge hole K62 and the hinge hole C23 on the seat cushion assembly 2, the backrest assembly 6 rotates around the hinge hole C23 while the backrest assembly 6 rotates around the chute C61 on the backrest assembly 6. Slide downwards and backwards on the roller 86 on the drive assembly 8 and rotate simultaneously.

5. When the pin shaft 92 on the front frame assembly 9 slides upwards in the chute D84 of the driving body 80, the hinge hole L71 of the telescoping assembly 7 also moves upwards at the same time, and the telescopic rod 72 of the telescoping assembly 7 moves upwards. Internal contraction, when shrinking to the minimum size, under the action of the hinge hole M73 on the expander assembly 7 and the hinge hole B12 on the armrest assembly 1, the armrest assembly 1 rotates around the hinge hole A11 on the armrest assembly 1 .

6. When the seat cushion assembly 2 moves upwards and backwards, the roller A on the connecting rod assembly 4 slides backward and upward in the chute A21 on the seat cushion assembly 2, and at the same time the hinge hole G41 on the connecting rod assembly 4 Under the interaction with the hinged hole on the pedal 5, the pedal 5 will rotate upward around the hinged hole R95 on the front frame assembly 9, and move backward with the front frame assembly 9 simultaneously.

7. During the folding process, the position of the center of gravity of the entire wheelchair will continue to move backwards with the degree of folding. When the center of gravity crosses the vertical center of gravity of the driving wheels 87, the whole vehicle will fall backwards, and the rear anti-rolling wheels 89 will land on the ground at the same time. Under the support of two drive wheels 87 and two anti-tilt wheels 89, the electric wheelchair can stand up by itself.

The opposite is unfolding.

In the embodiment shown in FIG. 4 , the automatic folding action is completed, and the electric wheelchair is in the folded state. Under the support of the two driving wheels 87 and the two anti-rolling wheels 89, the electric wheelchair stands up by itself.

The automatic folding electric wheelchair involved in the utility model can also be used for manual folding. The switch on the electric push rod 10 is placed in the manual state or the electric push rod 10 is cancelled. Manual folding is also more convenient and easy, and only one action is needed. The electric wheelchair can be folded and unfolded. In the state of use, grasp the upper part of the backrest assembly 6 with one hand, and the front part of the seat cushion assembly 2 with the other hand, and at the same time close inwardly, the electric wheelchair can be folded. On the contrary, for the folded electric wheelchair, the electric wheelchair can be unfolded by pushing outwards between the seat cushion assembly 2 and the backrest assembly 6 with both hands.

It should be declared that the above content of the invention and specific implementation methods are intended to prove the practical application of the technical solution provided by the utility model, and should not be interpreted as limiting the protection scope of the utility model. Those skilled in the art may make various modifications, equivalent replacements or improvements within the spirit and principle of the present utility model. The scope of protection of the utility model shall be determined by the appended claims.

Claims (10)

1. An automatic folding electric wheelchair, including the main drive assembly, armrest assembly, seat cushion assembly, rocker arm group, connecting rod assembly, pedals, backrest assembly, retractor assembly, front wheel Body assembly, electric push rod, driving body assembly is provided with a driving body, which is characterized in that the wheelchair is provided with a driving body at the rear of the wheelchair, the driving body is a U-shaped structure, and a hinge hole P is provided to connect with the electric push rod , with a pin roller connection backrest assembly, symmetrically provided with hinge holes N on both sides to connect the armrest assembly, symmetrically provided with rollers B to connect the seat cushion assembly, and symmetrically provided with hinged holes O to connect the rocker arm group, Both sides are symmetrically provided with chute D to connect the front vehicle body assembly, both sides are symmetrically provided with drive wheels, and both sides are symmetrically provided with anti-tilt wheels. 2. The self-folding electric wheelchair according to claim 1, characterized in that the armrest assembly is composed of two identical armrests, which are symmetrically placed, and a controller is installed on one of the armrests, and the armrest assembly is provided with hinged holes B It is connected with the retractor assembly, and the armrest assembly is provided with a hinged hole A to connect with the driving main body. 3. The self-folding electric wheelchair according to claim 1, characterized in that the seat cushion assembly is a frame structure, with a chute A connecting the rollers of the connecting rod assembly in the middle, and hinge pins connecting the rocker on both sides symmetrically. The arm group is symmetrically provided with chute B on both sides to connect with the roller B on the driving main body, and hinged holes C are symmetrically provided on both sides to connect the backrest assembly. 4. The self-folding electric wheelchair according to claim 1, characterized in that the rocker arm group is composed of two identical rocker arms, placed symmetrically, and one end of the rocker arm group is provided with a hinge hole D to connect with the seat cushion assembly, The other end is provided with a hinged hole F to connect with the driving body, and the middle is provided with a hinged hole E to be connected with the front body assembly. 5. The self-folding electric wheelchair according to claim 1, characterized in that the backrest assembly is a frame structure, and both sides are symmetrically provided with chute C to connect with the pin roller on the driving body, and both sides are symmetrically provided with hinged joints. Hole K is connected to the seat cushion assembly. 6. The self-folding electric wheelchair according to claim 1, characterized in that the front body assembly is a U-shaped structure, with a hinge hole Q connected to the electric push rod in the middle, and hinge holes R connected to the pedals symmetrically on both sides , both sides are symmetrically provided with the hinge hole S to connect with the middle hinge hole on the rocker group, both sides are symmetrically provided with the roller C to connect with the driving main body, and both sides are symmetrically provided with the pin shaft to connect with the telescopic assembly. 7. The self-folding electric wheelchair according to claim 1, characterized in that one end of the connecting rod assembly is provided with a hinge hole G to connect with the pedal, and the other end is provided with a roller A and a middle slide of the seat cushion assembly. The slots are connected. 8. The self-folding electric wheelchair according to claim 1, characterized in that the pedals are provided with hinged holes H connected to the connecting rod assembly through pins, and hinged holes J are symmetrically provided on both sides to connect the front body assembly. 9. The self-folding electric wheelchair according to claim 1, characterized in that the retractor assembly is provided with a hinged hole M connected with the armrest assembly through a pin, and the other end of the retractor assembly is provided with a hinged hole L connected with the front The pin shafts on the vehicle frame assembly are connected, and the expander can be stretched. 10. The self-folding electric wheelchair according to claim 1, characterized in that the electric push rod is provided with a hinge hole T to connect with the front vehicle body assembly, and a hinge hole U is provided to connect with the driving body.