CN204521273U - Power-assisted chair - Google Patents

Abstract

The booster seat disclosed in the utility model comprises four mutually fixed outriggers, a seat plate whose front end is hinged with the front outrigger, a back frame whose lower end is hinged with the rear end of the seat plate, and a seat for driving the seat plate to turn forward. The driving device, the lower ends on both sides of the back frame extend downwards to form an extension section, and also includes a connecting rod for making the back frame always vertical, and the two ends of the connecting rod are respectively hinged with the front leg and the extension section; by driving The device rotates the seat board and turns it over, and through the connecting rods hinged on the front legs and the lower end of the frame, the seat board and the back frame are simultaneously assisted to sit up, which can smoothly convert the user to a sitting position when the user requests to sit down , and when it is required to stand up in use, the user can be gently pushed up by the power-assisted seat, and the structure is singled out, which is easy to use and helps the disabled or the elderly to help them sit up.

Description

booster seat

technical field

The utility model relates to a seat, in particular to a booster seat.

Background technique

At present, aging has become a prominent social problem in the world. Many elderly people have difficulty moving due to physical decline, especially those who live alone or those whose children are not with them. , will have a great negative impact on the quality of life and freedom of the elderly, and seriously hinder the quality of life. At the same time, there are still quite a few disabled people in the society. Due to the inconvenience of their legs and feet, they need to use enough arm strength to complete the task. sit up on the seat, and in the prior art, the user needs to completely rely on his own strength to sit up, and when the user lacks sufficient physical strength, it will seriously affect the user's actions. Therefore, it is necessary to provide a power-assisted seat The chair can smoothly convert the user to a sitting position when the user requests to sit down, and when the user requests to stand up, the user can be pushed up smoothly through the power-assisted seat, and the structure is single, easy to use, and helps people with disabilities or The old man helps to sit up.

Utility model content

The purpose of this utility model is to provide a power-assisted seat, which can gently convert the user to a sitting position when the user requires to sit down, and can gently push the user up through the power-assisted seat when the user requires to stand up, and The structure is simple, easy to use, and helps the disabled or the elderly to sit up.

The booster seat of the utility model comprises four legs fixed to each other, a seat plate whose front end is hinged with the front leg, a back frame whose lower end is hinged with the rear end of the seat plate, and a drive for driving the seat plate to turn forward. The device, the lower ends of both sides of the back frame extend downwards to form an extension section, and also includes a connecting rod for making the back frame always vertical, and the two ends of the connecting rod are respectively hinged with the front leg and the extension section.

Further, the driving device is a cylinder, and a mounting plate for installing the cylinder is arranged between the legs, the cylinder is fixed on the upper surface of the mounting plate, and the end of the driving shaft of the cylinder is fixedly arranged on the seat. The hinge seat on the lower surface of the board is hinged.

Further, armrests are provided on both sides of the seat, and a cylinder controller for controlling the cylinder is provided on the armrest, and the cylinder controller is connected to the cylinder.

Further, the handrail is an arc-shaped ring-shaped handrail.

Further, it also includes a storage battery, which can supply power to the cylinder and the controller; the seat board and the back board are fixedly provided with cushions.

Further, it also includes a heating device for heating the seat, the heating device includes a fast heating circuit, a heat preservation heating circuit and a power supply, the fast heating circuit is provided with a temperature control switch assembly for controlling the fast heating circuit on and off, The power supplies supply power to the rapid heating circuit and the heat preservation heating circuit respectively.

Further, the rapid heating circuit includes a first heating wire arranged inside the seat for rapid heating of the seat, and the temperature control switch assembly includes a temperature sensor, a control module and a relay, and the relay is connected to the first heating The wires are connected in series, the output end of the temperature sensor is connected to the first input end of the control module, and the first output end of the control module is connected to the control end of the relay.

Further, the heat preservation heating circuit includes a second heating wire for heat preservation and heating of the seat, and a rheostat for adjusting the heat preservation temperature is connected in series in the heat preservation heating circuit.

Further, it also includes a pressure sensor arranged on the seat for monitoring the pressure of the seat surface, the output end of the power supply is provided with a controller for switching the output end of the power supply, and the output end of the pressure sensor is connected to the control module. The second input terminal is connected, and the second output terminal of the control module is connected with the control terminal of the controller.

Further, it also includes a pressure sensor arranged on the seat for monitoring the pressure of the cushion, the output end of the power supply is provided with a controller for switching the output end of the power supply, the output end of the pressure sensor is connected to the control end of the controller connect.

Beneficial effects of the utility model: the power-assisted seat disclosed in the utility model can turn the seat plate overturned by the driving device, and through the connecting rod hingedly arranged at the front leg and the lower end of the frame, the seat plate and the back frame can be boosted at the same time. Sit, can gently convert the user to a sitting position when the user requests to sit down, and when the user requires to stand up, the user can be gently pushed up through the booster seat, and the structure is single, easy to use, and helps people with disabilities or The old man helps to sit up.

Description of drawings

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

Fig. 1 is the structural representation that the utility model provides;

Fig. 2 is a structural schematic diagram of the seat power assist provided by the utility model;

Fig. 3 is a schematic structural diagram of the heating circuit provided by the present invention.

Detailed ways

Fig. 1 is a schematic diagram of the structure provided by the utility model, Fig. 2 is a schematic diagram of the structure of the seat provided by the utility model when it is assisted, and Fig. 3 is a schematic diagram of the structure of the heating circuit provided by the utility model, as shown in the figure, the booster in this embodiment The seat comprises four legs fixed to each other, a seat plate 1 whose front end is hinged to the front leg 3a, a back frame 2 whose lower end is hinged to the rear end of the seat plate 1, and is used to drive the seat plate 1 to The driving device 5 that is turned over before, the legs can be fixed to the ground by screws or the bottom of the legs is provided with anti-skid pads, the lower end of the back frame 2 extends downwards to form an extension section 21, and also includes a function for making the back frame 2 always Vertical connecting rod 4, the two ends of the connecting rod 4 are respectively hinged with the front outrigger 3a and the extension section 21, the front outrigger 3a is higher than the rear outrigger 3b so that the seat is horizontal when it is put down; the front is the front of the seat , the seat board 1 is rectangular, the two sides of the front end of the seat board 1 are respectively hinged with the inner sides of the two front legs 3a, the two sides of the rear end of the seat board 1 are hinged with the inner sides of the lower end of the back frame 2, and through the action of the connecting rod 4, When the seat board 1 is turned forward at an angle by the force of the driving device 5 (the driving device 5 can be electronically controlled by the user), due to the force of the connecting rod 4 on the back frame 2, the back frame 2 always moves in a vertical state, Under the joint auxiliary force of the seat plate 1 and the back frame 2, it is convenient for people with limited mobility to sit up effortlessly, avoiding the difficulty for people with limited mobility to leave the seat or easily causing joint damage, and ensuring the safety of users.

In this embodiment, the driving device 5 is a cylinder, and a mounting plate 22 for mounting the cylinder is arranged between the legs, the cylinder is fixed on the upper surface of the mounting plate 22, and the end of the drive shaft of the cylinder is connected to the The hinge seat 11 fixedly arranged on the lower surface of the seat plate 1 is hinged, and the mounting plate 22 is horizontally fixedly installed between the four legs. The cylinder is a double-acting cylinder, which can help people with inconvenient movements to sit on the seat and stand up. Both can provide assistance to ensure the user's safety and labor-saving use of the seat.

In this embodiment, armrests 6 are provided on both sides of the seat board 1, and a cylinder controller for controlling the cylinder is provided on the armrest 6. The cylinder controller is connected to the cylinder, and the user controls the armrest 6 by hand. The air cylinder works to ensure easy operation and helps the user to balance his body.

In this embodiment, the handrail 6 is an arc-shaped ring-shaped handrail, which is more convenient for use and grasping, and further ensures the user's body balance and ease of use.

In this embodiment, a battery is also included, and the battery can supply power to the cylinder and the controller. The battery is fixedly installed under the chair. Through the setting of the battery, the seat is not limited by the position of the socket, increasing the flexibility of the seat.

In this embodiment, it also includes a heating device for heating the seat. The heating device includes a fast heating circuit, a heat preservation heating circuit and a power supply. The switch assembly, the power supply supplies power to the fast heating circuit, the heat preservation heating circuit and the temperature control switch assembly respectively, and the fast heating circuit and the heat preservation heating circuit are all arranged on the surface of the seat or the fast heating element and the heat preservation heating element inside, and the power supply is turned on After the power supply, the heating power of the fast heating element is relatively large, and the power of the heat preservation heating element is small. When the temperature rises rapidly to a certain value, a threshold temperature is preset for the temperature control switch component. When the threshold temperature is reached, the temperature control switch is disconnected. The fast heating circuit, meanwhile, the heat preservation circuit continues to work to heat the seat. By heating the seat in two stages, it can ensure that the seat can reach the set temperature quickly, avoiding too long waiting time, and use the temperature control switch Control the rapid heating circuit, avoid manual temperature adjustment, and ensure that the heating device has a high temperature control efficiency.

In this embodiment, the fast heating circuit includes a first heating wire arranged inside the seat for fast heating of the seat, and the temperature control switch assembly includes a temperature sensor, a control module and a relay, and the relay is connected to the The first heating wire is connected in series, the output end of the temperature sensor is connected to the first input end of the control module, the first output end of the control module is connected to the control end of the relay, and the inside of the seat is represented as a seat In the seat cushion 13 and the back cushion 14, the first heating wire is provided with an insulating and heat-conducting sleeve for protection. By setting the heating wire in the seat cushion 13 and the back cushion 14, it is easy to install, and the heating area is large and the efficiency is high. The temperature sensor It is a patch-type temperature sensor, such as the model JCJ100TTP patch-type temperature sensor, which is installed on the surface of the seat, and the temperature measurement is more accurate. The control module can be a 51 single-chip microcomputer, which is used to convert the detection signal of the temperature sensor into a control signal output Control the on and off of the relay, and store the threshold temperature in the control module. When the seat surface temperature exceeds the threshold temperature, the control module outputs a disconnect signal to make the relay disconnect. Using the relay as a control switch can effectively separate the control circuit from the working circuit , to ensure the safety of the heating device.

In this embodiment, the thermal insulation heating circuit includes a second heating wire for thermal insulation and heating of the seat, and a rheostat for adjusting the thermal insulation temperature is connected in series in the thermal insulation heating circuit, and the rheostat can be a sliding rheostat. The heating power of the second heating wire can be changed, and then the heat preservation temperature can be changed to meet the needs of different people or different temperature environments and ensure the applicability of the seat.

In this embodiment, the heat preservation and heating circuit is also provided with a thermistor for fine-tuning the current of the second heating wire, the thermistor is a positive temperature coefficient thermistor, and the positive temperature coefficient thermistor In order to increase the resistance when the temperature rises in a certain temperature range, the operating current can be reduced, and the heating power of the second heating wire is smaller. When the temperature decreases, the resistance becomes larger, and the power of the second heating wire is increased to realize automatic fine-tuning of the temperature. Avoid excessive fluctuations in the power of the second heating, and ensure that the temperature is stable during heat preservation.

In this embodiment, it also includes a pressure sensor arranged on the seat for monitoring the pressure of the seat surface, the output end of the power supply is provided with a controller for switching the output end of the power supply, and the output end of the pressure sensor is connected to the The second input terminal of the control module is connected, the second output terminal of the control module is connected with the control terminal of the controller, the pressure sensor and the temperature sensor share a control module, the pressure on the seat is detected by the pressure sensor, and the When someone puts pressure on the seat, the control module outputs a signal to turn off the controller, and the power supply supplies power to the heating device. When the human body leaves the seat, the heating device is automatically powered off through the control module to avoid power waste caused by people forgetting to turn off the power.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (10)

1. a power-assisted chair, it is characterized in that, comprise the hinged back of the body frame in the hinged seat of four supporting legs interfixed, front end and front leg struts, lower end and described seat rear end and the driving device for driving seat to overturn forward, lower end, described back of the body frame both sides extends to form extension downwards, also comprise the connecting rod for making back of the body frame vertical all the time, described connecting rod two ends respectively with front leg strut and extension hinged.

2. power-assisted chair according to claim 1, it is characterized in that: described driving device is cylinder, the installing plate for installing cylinder is provided with between described supporting leg, described cylinder is fixed on described installing plate upper surface, and the end of the driving shaft of cylinder is hinged with the hinged seat being fixedly installed on described seat lower surface.

3. power-assisted chair according to claim 2, is characterized in that: described seat both sides are provided with handrail, and described handrail is provided with the cylinder controller for control cylinder, described cylinder controller is connected with cylinder.

4. power-assisted chair according to claim 3, is characterized in that: described handrail is curved annular handrail.

5. power-assisted chair according to claim 4, is characterized in that: also comprise accumulator, described accumulator can be cylinder and controller is powered; Described seat and backup plate are fixedly installed cushion.

6. power-assisted chair according to claim 5, it is characterized in that: also comprise the heater for heating seat, described heater comprises rapid heating circuit, Heat preservation circuit and power supply, be provided with the temperature detect switch (TDS) assembly controlling rapid heating circuit break-make in described rapid heating circuit, described power supply is respectively rapid heating circuit and Heat preservation circuit is powered.

7. power-assisted chair according to claim 6, it is characterized in that: described rapid heating circuit comprises that to be arranged at seat inner for the first heater strip to seat Fast Heating, described temperature detect switch (TDS) assembly comprises temperature sensor, control module and relay, described relay is connected with described first heater strip, the outfan of described temperature sensor is connected with the first input end of control module, and the first outfan of described control module is connected with the control end of described relay.

8. power-assisted chair according to claim 7, is characterized in that: described Heat preservation circuit comprises the second heater strip seat being carried out to Heat preservation, connects one for regulating the rheostat of holding temperature in described Heat preservation circuit.

9. power-assisted chair according to claim 8, it is characterized in that: also comprise and being arranged on seat for monitoring the pressure transducer of seat surface pressure, the outfan of described power supply is provided with the controller for power on/off source output terminal, the outfan of described pressure transducer is connected with the second input of described control module, and the second outfan of described control module is connected with the control end of described controller.

10. power-assisted chair according to claim 9, it is characterized in that: also comprise and being arranged on seat for monitoring the pressure transducer of medicated cushion pressure, the outfan of described power supply is provided with the controller for power on/off source output terminal, and the outfan of described pressure transducer is connected with the control end of described controller.