CN217938048U - Toilet bowl auxiliary assembly and toilet bowl of gear motor helping hand - Google Patents

Abstract

The utility model provides a toilet bowl auxiliary assembly and toilet bowl of gear motor helping hand, this auxiliary assembly include the supporting seat to and set up in the bench of sitting that can go up and down and incline by the arc guide drive in the supporting seat at supporting seat top, wherein, the power supply includes gear motor, gear motor's power output shaft is provided with the gear, the arc guide is provided with the rack, the rack with gear drive cooperation, drive the arc guide goes up and down along the circular arc track. The toilet bowl comprises the auxiliary equipment. Because adopt gear motor as the power supply, through setting up at the rack of arc guide rail and the gear cooperation of setting at gear motor power take off shaft, drive arc guide rail and go up and down along the circular arc track, sit bench lifting stroke and inclination can not receive the restriction of power supply stroke, so sit bench and can realize great lifting stroke and inclination.

Description

Toilet bowl auxiliary assembly and toilet bowl of gear motor helping hand

Technical Field

The utility model relates to a toilet bowl auxiliary assembly technical field specifically is a toilet bowl auxiliary assembly of gear motor helping hand to and adopt toilet bowl auxiliary assembly's of this gear motor helping hand toilet bowl.

Background

At present, when a plurality of patients with lumbar vertebra diseases and lower limb dysfunction, pregnant women in middle and late gestation, super obese people and old people with old age and weak body use the toilet alone, the patients can have difficulty in squatting and rising due to insufficient leg and waist strength, and even can have dangerous conditions of side turning, falling and the like. Therefore, the auxiliary equipment of the toilet bowl for assisting rising and squatting is produced.

The existing auxiliary equipment of the toilet bowl usually adopts an electric push rod as a power source, is limited by the stroke of the electric push rod, has smaller lifting stroke and inclination angle of the stool and has poorer auxiliary effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a toilet bowl auxiliary assembly and toilet bowl of gear motor helping hand to solve the above-mentioned defect that the correlation technique exists.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a toilet bowl auxiliary assembly of gear motor helping hand, it includes:

the supporting seat comprises a first seat body and a second seat body which are oppositely arranged, an accommodating cavity of the toilet bowl is formed between the first seat body and the second seat body, and an arc-shaped track, an arc-shaped guide rail which is matched with the arc-shaped track and can be lifted to the front upper part of the toilet bowl and a power source for pushing the arc-shaped guide rail are respectively arranged in the first seat body and the second seat body; and

the stool is arranged at the tops of the first seat body and the second seat body and is fixed with the top ends of the arc-shaped guide rails;

wherein: the power source comprises a gear motor, a power output shaft of the gear motor is provided with a gear, the arc-shaped guide rail is provided with a rack, and the rack is in transmission fit with the gear and drives the arc-shaped guide rail to lift along the arc-shaped track.

Preferably, the reduction ratio of the reduction motor is not less than 1:300.

preferably, the motor end of the gear motor is provided with an encoder, and the encoder is electrically connected with the controller.

Preferably, the circular arc track is composed of a plurality of first rollers arranged in a circular arc shape and a plurality of second rollers arranged in a circular arc shape, grooves for embedding the arc-shaped guide rails are circumferentially arranged on the circumferential surfaces of the first and second rollers, or grooves for embedding the rollers are arranged on the inner edges and the outer edges of the arc-shaped guide rails, and the first roller or the second roller is an eccentric roller.

Preferably, the stool is further provided with a left armrest and a right armrest, the front end of the left armrest is provided with one of the two switches of alarming and lifting control, and the front end of the right armrest is provided with the other of the two switches of alarming and lifting control.

Preferably, the auxiliary device comprises a switching power supply and a battery, the output end of the switching power supply is connected with the anode of a diode D1, the cathode of the diode D1 is connected with a voltage bus, and the anode of the diode D1 is further connected with a resistor R1 and the LED1 to the ground; the output end of the battery is connected with the anode of the diode D4, the cathode of the diode D4 and the anode of the diode D2 are connected with two ends of a normally closed contact of the relay K1, the cathode of the diode D2 is connected with a voltage bus, the anode of the diode D2 is also connected with the resistor R2 and the LED2 to the ground, and the coil of the relay K1 is connected with the output end of the switching power supply.

Preferably, the auxiliary device includes an under-voltage detection circuit, an overvoltage detection circuit, an overcurrent detection circuit, and a short-circuit protection circuit, and the under-voltage detection circuit is electrically connected to the voltage bus and configured to turn off the load when the voltage of the battery is lower than the under-voltage.

Preferably, the auxiliary device comprises a zero position sensor, and the zero position sensor is arranged at the movement end point of the arc-shaped guide rail, electrically connected with the controller, and used for clearing the movement error of the arc-shaped guide rail.

Preferably, the auxiliary equipment comprises a temperature sensor, wherein the temperature sensor is arranged in the highest temperature area of the toilet auxiliary equipment and is electrically connected with the controller, and the temperature sensor is used for turning off the load when the temperature is higher than the set temperature.

A toilet bowl comprises a toilet bowl body and auxiliary equipment, wherein the auxiliary equipment is the toilet bowl auxiliary equipment.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

because adopt gear motor as the power supply, through setting up at the rack of arc guide rail and the gear cooperation of setting at gear motor power output shaft, drive arc guide rail and go up and down along the circular arc track, sit bench lifting stroke and inclination can not receive the restriction of power supply stroke, so sit bench and can realize great lifting stroke and inclination.

Drawings

FIG. 1 is a schematic view of an embodiment of a toilet bowl;

FIG. 2 is a schematic view of the combination of the arc-shaped guide rail, the first and second rollers, the gear and the reduction motor;

FIG. 3 is a schematic view of the stool after it is raised;

FIG. 4 is a block diagram of a controller;

FIG. 5 is a power supply circuit diagram;

FIG. 6 is a circuit diagram of over-current detection;

reference numerals are as follows:

1. a stool; 2. a left armrest; 3. a lifting control switch; 4. a supporting base; 5. a first seat body; 6. a caster wheel; 7. an accommodating cavity; 8. a transverse connecting rod; 9. a toilet body; 10. a second seat body; 11. an alarm switch; 12. a right armrest; 13. a slide plate; 14. a first roller; 15. a second roller; 16. a gear; 17. a reduction motor; 18. an arc-shaped guide rail; 19. waterproof felt; 20. a waterproof rubber sleeve; 21. and a control box.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

In fig. 1 a toilet is shown, which is provided with a toilet aid for assisting in rising and squatting. Because this toilet bowl auxiliary assembly is regarded as the power supply by gear motor, so call this kind of toilet bowl auxiliary assembly in this application for gear motor helping hand's toilet bowl auxiliary assembly.

Referring to fig. 1, the toilet stool auxiliary equipment includes a support base 4 and a stool 1.

The supporting seat 4 comprises a first seat body 5 and a second seat body 10 which are oppositely arranged, a containing cavity 7 of the toilet bowl is formed between the first seat body 5 and the second seat body 10, and the first seat body 5 and the second seat body 10 are locked through a front transverse connecting rod 8 and a rear transverse connecting rod 8 to form a fixed frame. A foot cup (not shown) is fixed to the bottom of the first housing 5 and the bottom of the second housing 10, and a caster 6 is fixed to the first housing for movement, and the caster 6 is preferably a universal wheel. The first seat 5 and the second seat 10 are hollow so as to install a driving mechanism of the stool 1 therein, which will be described in the following paragraphs.

The stool 1 is placed on the top of the first seat body and the second seat body and is supported by the first seat body and the second seat body, and the mouth of the stool 1 is butted with the mouth of the pedestal pan 9.

In one embodiment, the left side of the stool 1 is further locked and fixed with a left armrest 2, the right side of the stool is further locked and fixed with a right armrest 12, and after a user sits on the stool 1, two arms can be supported on the two armrests. Further, the lifting control switch 3 is arranged at the front end of the left armrest 2, the alarm switch 11 is arranged at the front end of the right armrest 12, when the seat is used, the arm does not need to leave the armrest, the seat 1 can be operated to lift, an alarm is given out, the control convenience is greatly improved, and particularly convenience is provided for users with inconvenient arm actions.

The driving mechanisms of the stool 1 are arranged in the first seat 5 and the second seat 10, and the driving mechanisms in the two seats move synchronously to drive the stool 1 to lift and tilt together. The driving mechanism of the stool 1 will be described below by taking the first seat 5 as an example.

Referring to fig. 2 and 3, a sliding plate 13 is fixed to a side wall of the interior of the first seat 5, two first rollers 14 and two second rollers 15 are respectively fixed to the sliding plate 13 through shafts, the two first rollers 14 are distributed in an arc shape, the two second rollers 15 are also distributed in an arc shape, and an arc track is formed between the two first rollers 14 and the two second rollers 15. An arc-shaped guide rail 18 is fixed in the arc-shaped track, and the arc-shaped guide rail 18 is in sliding fit with the arc-shaped track and can lift along the arc-shaped track. Furthermore, grooves are formed in the circumferential surfaces of the first roller and the second roller along the circumferential direction, the inner edge of the arc-shaped guide rail 18 is embedded with the grooves in the circumferential surface of the first roller 14, and the outer edge of the arc-shaped guide rail 18 is embedded with the grooves in the circumferential surface of the second roller 15, so that the arc-shaped guide rail 18 and the rollers can be prevented from being separated. It is understood that the same effect can be achieved by providing grooves on the inner and outer edges of the arc-shaped guide rail 18 and engaging the first and second rollers 14 and 15 with the grooves of the arc-shaped guide rail 18. Preferably, the second roller 15 is an eccentric roller, and the gap between the arc-shaped guide rail 18 and the arc-shaped track can be adjusted by adjusting the eccentric roller, so as to ensure that the stool 1 can be lifted stably.

A rack (not shown) is fixed to the arc-shaped guide rail 18, the rack has the same shape as the arc-shaped guide rail 18 and is also arc-shaped, and the rack can be combined with the arc-shaped guide rail 18 by fixing methods such as screws, welding, clamping and the like, and can also be integrally formed with the arc-shaped guide rail 18.

The rack is engaged with a gear 16, the gear 16 is locked and fixed on a power output shaft of a speed reducing motor 17, and the speed reducing motor 17 is fixed on the sliding plate 13 through bolts. When the speed reducing motor 17 works, the gear 16 is driven to rotate, the gear 16 drives the rack to move, the rack drives the arc-shaped guide rail 18 to move along the arc-shaped track, and the speed reducing motor 17 is controlled to rotate forwards or backwards, so that the arc-shaped guide rail 18 can be controlled to lift or fall.

The top end of the arc-shaped guide rail 18 is locked and fixed with the stool 1, and the fixing mode can be clamping, welding, screw connection and the like. The lifting motion of the arc-shaped guide rail 18 drives the stool 1 to synchronously lift. The arc-shaped guide rail 18 is matched with the arc-shaped track, so that the stool 1 is inclined towards the front of the toilet bowl in the lifting process, or the stool 1 is lifted and moved towards the front upper part of the toilet bowl.

As can be seen from the above, since the gear motor 17 is used as a power source, and the rack arranged on the arc-shaped guide rail 18 is matched with the gear 16 arranged on the power output shaft of the gear motor 17 to drive the arc-shaped guide rail 18 to ascend and descend along the arc-shaped track, the ascending stroke and the inclination angle of the stool 1 are not limited by the stroke of the power source, so that the stool 1 can realize a larger ascending stroke and inclination angle.

In one embodiment, the lifting inclination angle of the sitting stool 1 is more than 37 degrees, and the lifting height is more than 100mm, so that patients suffering from lumbar diseases and lower limb dysfunction, pregnant women in the middle and late gestation period, super-obese people, old people with old age and weak body and the like can easily realize two difficult actions of bending to sit down and standing up independently by leaning on the sitting stool 1, and the safety and the comfort are improved.

In another embodiment, a groove matching the curvature and width of the arc-shaped guide rail 18 may be fixed on the sliding plate 13 as an arc-shaped rail, the arc-shaped guide rail 18 is embedded in the groove and is matched with the groove in a sliding manner, and a window is arranged on the arc-shaped rail for the gear 16 to pass through and to be meshed with the rack on the arc-shaped guide rail 18 for power transmission.

Referring to fig. 2 and 3 again, the controller is hermetically installed in the control box 21, the control box 21 is locked and fixed in the first seat 5, a wire hole is formed in the rear side wall of the first seat 5, and a waterproof rubber sleeve 20 is installed in the wire hole. The top of the first base 5 is provided with a through hole for the arc-shaped guide rail 18 to pass through, the through hole is provided with a waterproof felt 19, and the joint part of the main body part of the first base 5 and the cover plate is provided with waterproof glue. In addition, the speed reducing motor 17 is selected to have a protection grade above IP54, and waterproof rubber sleeves are sleeved on the lifting control switch 3 and the alarm switch 11. So that the whole water-proof performance of the auxiliary equipment of the toilet bowl is good.

The use method of the toilet bowl auxiliary equipment comprises the following steps: after a user presses the lifting control switch 3 on the handrail, the controller controls the two speed reducing motors 17 to rotate forwards or backwards at the same time, and the arc-shaped guide rail 18 is driven to lift according to the arc-shaped track, so that the sitting stool 1 is driven to lift, and the function of assisting the user to sit down in a bending way or stand up is realized. After the lifting control switch 3 is released, the speed reducing motor 17 stops rotating, and the stool 1 can stop at any position and has a self-locking function. An upper travel limit switch and a lower travel limit switch are installed in the first seat body and/or the second seat body, and the arc-shaped guide rail 18 stops moving when moving to the travel limit switches, so that the safety of users and equipment is protected. When the user presses the alarm switch 11 on the armrest, a signal is generated to make a buzzer mounted in the control box 21 generate an alarm sound.

The reduction ratio of the reduction motor 17 is preferably not less than 1:300. in one embodiment, the reduction ratio is specifically 1.

And an encoder is arranged at the motor end of the speed reducing motor 17 and is electrically connected with the controller, and the detected rotation angle is fed back to the controller to realize the closed-loop control of the rotation speed. The encoder may employ, for example, a combination of a grating disk and a photosensor.

A controller block diagram of an embodiment is shown in fig. 4.

In one embodiment, the controller is powered by a dual power wide voltage input. One path of power supply is 24V direct current power supply input, and a switching power supply is preferred. The other power supply is a battery input, preferably a 12V or 18V battery. When two paths of power supplies are simultaneously connected to the control box, the direct-current power supply can be automatically identified and preferentially used for supplying power. Fig. 5 shows a specific power supply circuit.

As shown in fig. 5, the connector U1 is connected to a switching power supply, the connector U2 is connected to a battery, an output terminal of the switching power supply is connected to an anode of the diode D1, a cathode of the diode D1 is connected to a voltage bus, and an anode of the diode D1 is further connected to the resistor R1 and the indicator light LED1 to ground; the output end of the battery is connected with the anode of the diode D4, the cathode of the diode D4 and the anode of the diode D2 are connected with two ends of a normally closed contact of the relay K1, the cathode of the diode D2 is connected with a voltage bus, the anode of the diode D4 is also connected with the resistor R2 and the indicator light LED2 to the ground, and the coil of the relay K1 is connected with the output end of the switching power supply. When the switch power supply has input, the switch power supply supplies power to the voltage bus, and the coil of the relay K1 is electrified, the normally closed contact enters a disconnection state, and the battery is automatically disconnected from the voltage bus. When the switch power supply is not input, the coil of the relay K1 loses power, the normally closed contact returns to a closed state, and the battery supplies power to the voltage bus.

In one embodiment, the auxiliary device further comprises an under-voltage detection circuit, an over-current detection circuit and a short-circuit protection circuit.

The undervoltage detection circuit is electrically connected with the voltage bus, and can protect the over-discharge of the battery. A voltage dividing resistor is connected to a voltage bus, an ADC (analog to digital converter) port of a single chip microcomputer (controller) is connected to a voltage dividing position, and voltage at the voltage dividing position is sampled. The single chip microcomputer obtains input voltage feedback in real time, a current voltage value is calculated, when the fed-back voltage is lower than a set under-voltage, the load is controlled to be turned off by the single chip microcomputer, and the electric quantity lamp is only normally on by the red lamp beads.

The overvoltage detection circuit can protect the load from being damaged by overvoltage. The detection principle is the same as that of undervoltage detection, and when the fed-back voltage is higher than the set overvoltage voltage, the load is controlled to be closed by the single chip microcomputer.

The over-current detection circuit can protect the load from being damaged by exceeding the maximum current. The main principle is as follows: the current is converted into voltage, and then compared with the reference voltage, so as to judge the maximum current. And a low-resistance sampling resistor is connected in series in the voltage bus. When the maximum current flows through the sampling resistor, the resistor is unchanged, and the voltage on the sampling resistor increases with the current. In order to reduce the bus impedance, the resistance value of the sampling resistor is very low, so the voltage at two ends of the sampling resistor is also very low. In order to obtain a recognizable voltage, the sampled voltage needs to be amplified by an operational amplifier. At the maximum current, the voltage amplified by the operational amplifier is the overcurrent voltage. The amplified over-current voltage can be adjusted by adjusting the multiple of the operational amplifier. In order to reduce interference, the output voltage of an LDO (low dropout regulator) is used as a reference voltage, and the amplification factor of an amplifier is adjusted to make the over-current voltage slightly larger than the LDO voltage. Then, the two paths of voltages are connected into a comparator, when the voltages do not flow, the amplified voltage is lower than the reference voltage of the LDO, and the comparator outputs high level; when overcurrent occurs, the amplification voltage is higher than the LDO reference voltage, and the comparator outputs low level. And the singlechip receives the low level and controls to close the load. Fig. 6 shows an overcurrent detection circuit, in which the resistor R56 is a sampling resistor, the operational amplifier U9A and its peripheral components C24, C26, R50, R57 and R58 form an amplifying circuit, the chip U8A is a comparator, the chip U7 is an LDO, and the comparator U8A is provided with a reference voltage. The voltage at the two ends of the sampling resistor R56 is amplified by the amplifying circuit and then is input into the comparator U8A, the comparator U8A compares the voltage with the reference voltage provided by the U7 to output low level or high level, and when the comparator U8A outputs the low level, overcurrent is indicated.

The short-circuit protection circuit can protect against damage due to short-circuits. The principle is the same as that of the over-current detection circuit.

In an embodiment, this auxiliary assembly further includes the temperature-sensing ware, and the temperature-sensing ware sets up in the highest region of toilet bowl auxiliary assembly's temperature, and the temperature feedback of collection is to the singlechip, and the singlechip discerns the temperature and is higher than when setting up the temperature, closes the load, protects, can avoid because the continuous operation is too of a specified duration, leads to the temperature rise too high, causes the potential safety hazard.

There is a slight deviation in the movement of the arcuate guide to either the top or the bottom, which is cumulative over time. In order to eliminate the deviation, in an embodiment, the auxiliary device further includes zero position sensors, specifically, zero position sensors are disposed at two movement end points of the arc-shaped guide rail 18, the selectable zero position sensors include but are not limited to a photoelectric switch, a hall switch, a micro switch, a proximity switch, and the like, when the arc-shaped guide rail 18 moves upwards to the end point or downwards to the end point, the zero position sensors are triggered by the arc-shaped guide rail 18 to output a signal, and after the single chip microcomputer recognizes the signal of the zero position sensor, an error generated by each movement of the arc-shaped guide rail is cleared.

Fig. 1 shows a toilet bowl containing the above-mentioned auxiliary equipment, wherein the auxiliary equipment is matched with a toilet bowl body 9 through a containing cavity 7 between a first seat body and a second seat body of a supporting seat of the auxiliary equipment, and the auxiliary equipment is combined with the toilet bowl body 9 to form a whole.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the skilled person in understanding the content of the present invention, and can not be understood as the limitation of the protection scope of the present invention. Various decorations, equivalent changes and the like which are performed on the scheme by the technical personnel in the field under the conception of the invention are all included in the protection scope of the invention.

Claims (10)

1. A gear motor assisted toilet bowl assist device comprising:

the supporting seat comprises a first seat body and a second seat body which are oppositely arranged, an accommodating cavity of the toilet bowl is formed between the first seat body and the second seat body, and an arc-shaped track, an arc-shaped guide rail which is matched with the arc-shaped track and can be lifted to the front upper part of the toilet bowl and a power source for pushing the arc-shaped guide rail are respectively arranged in the first seat body and the second seat body; and

the stool is arranged at the tops of the first seat body and the second seat body and is fixed with the top ends of the arc-shaped guide rails;

the method is characterized in that: the power source comprises a gear motor, a power output shaft of the gear motor is provided with a gear, the arc-shaped guide rail is provided with a rack, and the rack is in transmission fit with the gear and drives the arc-shaped guide rail to lift along the arc-shaped track.

2. The toilet bowl auxiliary apparatus according to claim 1, wherein the reduction ratio of the reduction motor is not less than 1:300.

3. the toilet bowl auxiliary equipment according to claim 1, characterized in that the motor end of the speed reducing motor is provided with an encoder, and the encoder is electrically connected with the controller.

4. The toilet bowl auxiliary equipment according to claim 1, characterized in that the circular arc track is composed of a plurality of first rollers arranged in a circular arc shape and a plurality of second rollers arranged in a circular arc shape, the circumferential surfaces of the first and second rollers are circumferentially provided with grooves for embedding the arc-shaped guide rail, or the inner and outer edges of the arc-shaped guide rail are provided with grooves for embedding the rollers, and the first or second rollers are eccentric rollers.

5. The toilet bowl auxiliary equipment according to claim 1, wherein the stool is further provided with a left armrest and a right armrest, the front end of the left armrest is provided with one of an alarm switch and a lifting control switch, and the front end of the right armrest is provided with the other of the alarm switch and the lifting control switch.

6. The toilet bowl auxiliary equipment according to claim 1, wherein the auxiliary equipment comprises a switching power supply and a battery,

the output end of the switching power supply is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the voltage bus, and the anode of the diode D1 is also connected with the resistor R1 and the LED1 to the ground;

the output end of the battery is connected with the anode of the diode D4, the cathode of the diode D4 and the anode of the diode D2 are connected with two ends of a normally closed contact of the relay K1, the cathode of the diode D2 is connected with a voltage bus, the anode of the diode D2 is also connected with the resistor R2 and the LED2 to the ground, and the coil of the relay K1 is connected with the output end of the switching power supply.

7. The toilet bowl auxiliary equipment according to claim 6, wherein the auxiliary equipment comprises an undervoltage detection circuit, an overvoltage detection circuit, an overcurrent detection circuit and a short-circuit protection circuit, wherein the undervoltage detection circuit is electrically connected with the voltage bus and used for closing a load when the voltage of the battery is lower than undervoltage.

8. The toilet bowl auxiliary equipment according to claim 1, characterized in that the auxiliary equipment comprises a zero position sensor, wherein the zero position sensor is arranged at the movement terminal point of the arc-shaped guide rail and is electrically connected with the controller for clearing the movement error of the arc-shaped guide rail.

9. The toilet bowl attachment of claim 1, wherein the attachment includes a temperature sensor disposed in a temperature peak region of the toilet bowl attachment and electrically connected to the controller for turning off the load when the temperature is above a set temperature.

10. A toilet comprising a toilet body and an auxiliary device, wherein the auxiliary device is a toilet auxiliary device as claimed in any one of claims 1 to 9.

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