CN211560735U - Wheelchair with brake reminding function - Google Patents
Wheelchair with brake reminding function Download PDFInfo
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- CN211560735U CN211560735U CN201921272570.0U CN201921272570U CN211560735U CN 211560735 U CN211560735 U CN 211560735U CN 201921272570 U CN201921272570 U CN 201921272570U CN 211560735 U CN211560735 U CN 211560735U
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- brake
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Abstract
The utility model discloses a wheelchair of function is reminded in area brake relates to medical instrument technical field, and wherein, above-mentioned wheelchair of function is reminded in area brake includes: weight sensor, displacement sensor, central processing unit and audible-visual annunciator, above-mentioned weight sensor sets up on the seatpad of wheelchair, displacement sensor sets up on the wheel of wheelchair, and, weight sensor and displacement sensor all are connected with central processing unit, central processing unit is connected with audible-visual annunciator, weight sensor turns into the quality data of gathering into the quality signal of telecommunication, displacement sensor turns into the distance signal of telecommunication with the distance between brake disc and the wheel of gathering, central processing unit is less than the settlement quality value at comparison quality signal of telecommunication, and, when comparison distance signal of telecommunication is greater than the settlement distance value, generate brake alarm signal, audible-visual annunciator outwards sends audible-visual alarm after receiving brake alarm signal, thereby brake the wheelchair car when reminding the patient to rise, patient's safety has been ensured.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to wheelchair of function is reminded in area brake.
Background
The wheelchair is an important moving tool for wounded persons, patients, disabled persons and the like, and in the using process, the wheelchair not only meets the requirements of physically disabled persons and persons with mobility disabilities for riding instead of walk, but also is convenient for family members to move and take care of the patients, so that the patients can do physical exercise and participate in social activities by means of the wheelchair.
The common wheelchair is generally composed of mechanical components such as wheels, a seat cushion, armrests, a backrest and the like, and the patient can move, turn, stop, brake and the like through manual operation. In the use process, a patient often forgets to brake the wheelchair in time after rising from the wheelchair, so that the wheelchair is easy to move and the patient falls down if the patient sits down again. Although the intelligent wheelchair on the market can partially solve the problems, the intelligent wheelchair is expensive.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the wheelchair with the brake reminding function is provided, and the safety of a patient using the wheelchair is improved by arranging a weight sensor, a displacement sensor, a central processing unit, an audible and visual alarm and the like.
The utility model provides a wheelchair of function is reminded in area brake, include: the wheelchair comprises a weight sensor, a displacement sensor, a central processing unit and an audible and visual alarm, wherein the weight sensor is arranged on a seat cushion of the wheelchair, and the displacement sensor is arranged on a wheel of the wheelchair;
the weight sensor and the displacement sensor are both connected with the central processing unit, and the central processing unit is connected with the audible and visual alarm;
the weight sensor converts the collected mass data into a mass electric signal;
the displacement sensor converts the acquired distance between the brake disc and the wheel into a distance electric signal;
the central processing unit generates a brake alarm signal when the quality electric signal is smaller than a set quality value and the distance electric signal is larger than a set distance value;
and the audible and visual alarm gives out audible and visual alarm after receiving the brake alarm signal.
Furthermore, the brake device also comprises a brake unit, wherein the brake unit is connected with the brake disc;
when the growth rate of the mass electric signal is smaller than a set growth rate and the distance electric signal is larger than a set distance value, the central processing unit generates an emergency braking signal;
and the brake unit fixes the distance between the brake disc and the wheel to a set distance value after receiving the emergency braking signal so as to limit the rotation of the wheel.
Further, the brake actuating unit includes: the brake disc comprises a motor, a gear and brake calipers which are connected in sequence, wherein the brake calipers are arranged on two sides of a brake disc;
the motor is connected with the central processing unit;
the motor rotates after receiving the emergency braking signal;
the gear drives the brake caliper to contract under the rotation of the motor, and the distance between the brake disc and the wheel is limited to a set distance value.
The Bluetooth module is connected with the central processing unit through the Bluetooth module, and the voice broadcaster is arranged on a patient in a patch mode;
the voice broadcaster sends out voice prompt after receiving the brake alarm signal.
Furthermore, one end of the brake caliper, which is in contact with the brake disc, is made of wear-resistant material.
Further, the motor is a stepping motor.
The utility model discloses a wheelchair of function is reminded in area brake includes: the wheelchair comprises a weight sensor, a displacement sensor, a central processing unit and an audible and visual alarm, wherein the weight sensor is arranged on a seat cushion of the wheelchair in order to effectively monitor whether a patient sits on the wheelchair, the displacement sensor is arranged on a wheel of the wheelchair, the weight sensor and the displacement sensor are both connected with the central processing unit, and the central processing unit is connected with the audible and visual alarm. In the using process, the weight sensor converts the collected mass data into a mass electric signal, whether a patient sits on the wheelchair is judged through the numerical value of the mass electric signal, the displacement sensor converts the collected distance between the brake disc and the wheel into a distance electric signal, whether the wheelchair is in the braking state is judged through the numerical value of the distance electric signal, so that when the central processor compares that the quality electric signal is smaller than the set quality value and the comparison distance electric signal is larger than the set distance value, namely, when the patient is judged to leave the wheelchair but not braked, the central processing unit generates a brake alarm signal, and the audible and visual alarm sends out audible and visual alarm after receiving the braking alarm signal to warn the patient to brake the wheelchair in time, thereby effectively avoiding the situation that the patient falls down due to non-braking when sitting on the wheelchair again, and improving the safety of the patient.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Further features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, which is to be read in connection with the accompanying drawings, which are briefly described as follows. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic connection diagram of a wheelchair with a brake reminding function according to an embodiment of the present invention;
FIG. 2 is a connecting structure diagram of a wheelchair with a brake reminding function according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a wheelchair with a brake reminding function according to an embodiment of the present invention;
in the figure: 1-a Bluetooth module, 2-a weight sensor, 3-a displacement sensor and 4-a central processing unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides a wheelchair with a brake reminding function, which takes the situation that a patient often forgets to brake to cause a safety accident in the wheelchair using process into consideration; the technology can be applied to vehicles such as wheelchairs, baby strollers and the like, and the embodiment of the utility model is described in detail below.
The first embodiment is as follows:
first, a wheelchair with a brake reminder function according to an embodiment of the present invention will be described with reference to fig. 1, 2 and 3.
A wheelchair with a brake reminding function comprises: weight sensor 2, displacement sensor 3, central processing unit 4 and audible-visual annunciator, wherein, whether be in the wheelchair for the accuracy judgement patient, weight sensor sets up on the seatpad of wheelchair, whether be in the brake state for judging the wheelchair, displacement sensor sets up on the wheel of wheelchair, above-mentioned weight sensor and displacement sensor all are connected with central processing unit, central processing unit is connected with audible-visual annunciator, in the use, weight sensor chooses for use DEE-100kg, displacement sensor chooses for use the general pull rod displacement sensor of KTC, central processing unit chooses for use STM32F101C 8.
In the using process, the weight sensor converts the collected mass data into a mass electric signal, whether the patient sits on the wheelchair is judged according to the value of the mass electric signal, generally, the patient is judged to leave the wheelchair when the mass electric signal collected by the mass electric signal is between 0 and 1 kilogram, and the patient is judged to sit on the wheelchair when the mass electric signal collected by the mass electric signal is between 10 and 100 kilograms. The displacement sensor converts the collected distance between the brake disc and the wheel into a distance electric signal, and judges whether the wheelchair is in a braking state or not according to the value of the distance electric signal, for example, when the value of the distance electric signal is in the range of 0-0.1 cm, the wheelchair is judged to be in the braking state, the central processing unit compares the quality electric signal and is smaller than a set quality value, and when the comparison distance electric signal is larger than the set distance value, namely, the patient is judged to leave the wheelchair but not to be braked, the central processing unit generates a braking alarm signal, and the audible and visual alarm gives an audible and visual alarm outwards after receiving the braking alarm signal, so as to warn the patient to brake the wheelchair in time. In order to effectively remind the patient, the audible and visual alarm can be arranged on the armrest or the backrest of the wheelchair.
In addition, the wheelchair with the brake reminding function further comprises a brake unit, and the brake unit is connected with the brake disc. In the use, when the growth rate of quality signal of telecommunication is less than and sets for the growth rate, can in time monitor through the comparison of growth rate whether have the patient to sit on the wheelchair, usually, when not having the human weight signal of telecommunication to be 0 on the wheelchair, when the human weight that the quality signal of telecommunication is the people when sitting on the wheelchair, above-mentioned set for the growth rate usually for patient crowd minimum weight drop to zero. When the distance electric signal is greater than the set distance value, it should be noted that the set distance value is usually the maximum distance between the brake disc and the wheel in the braking state of the wheelchair, and when the distance electric signal is greater than the set distance value, it is determined that the wheelchair is not braked.
Specifically, the brake unit includes: the emergency braking device comprises a motor, a gear and a brake caliper which are connected in sequence, wherein the brake caliper is arranged on two sides of a brake disc, the motor is connected with a central processing unit, the motor rotates after receiving an emergency braking signal, the gear drives the brake caliper to contract under the rotation of the motor, and the distance between the brake disc and a wheel is limited to a set distance value.
The motor is a stepping motor, and generally, the motor adopts an integrated 90-speed reducer stepping motor. The step motor is an open-loop control motor which converts an electric pulse signal into angular displacement or linear displacement, and the rotation of the step motor is operated step by step at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled.
In addition, the wheelchair with the brake reminding function further comprises a voice broadcast device (such as a loudspeaker) and a Bluetooth module 1, generally, the Bluetooth module with the model of SKB362 is selected, the voice broadcast device is connected with the central processing unit through the Bluetooth module, the voice broadcast device is arranged on a patient in a patch mode, and the voice broadcast device sends out a voice prompt after receiving the brake alarm signal.
It needs to be supplemented and explained that the end of the brake caliper, which is in contact with the brake disc, is made of wear-resistant material, so that the brake effect is effectively enhanced by arranging the wear-resistant material, and the service life of the wheelchair is ensured.
The embodiment of the utility model provides a pair of wheelchair of function is reminded in area brake includes: the wheelchair comprises a weight sensor, a displacement sensor, a central processing unit and an audible and visual alarm, wherein the weight sensor is arranged on a seat cushion of the wheelchair, the displacement sensor is arranged on a wheel of the wheelchair, the weight sensor and the displacement sensor are both connected with the central processing unit, the central processing unit is connected with the audible and visual alarm, the weight sensor converts collected quality data into a quality electric signal, the displacement sensor converts the collected distance between a brake disc and the wheel into a distance electric signal, the central processing unit generates a brake alarm signal when comparing that the quality electric signal is smaller than a set quality value and that the distance electric signal is larger than the set distance value, the audible and visual alarm gives out audible and visual alarm after receiving the brake alarm signal so as to warn a patient to brake the wheelchair in time, thereby effectively avoiding the situation that the patient falls down due to non-braking when sitting on the wheelchair again, the safety of the patient is improved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a wheelchair of function is reminded in area brake which characterized in that includes: the wheelchair comprises a weight sensor, a displacement sensor, a central processing unit and an audible and visual alarm, wherein the weight sensor is arranged on a seat cushion of the wheelchair, and the displacement sensor is arranged on a wheel of the wheelchair;
the weight sensor and the displacement sensor are both connected with the central processing unit, and the central processing unit is connected with the audible and visual alarm;
the weight sensor converts the collected mass data into a mass electric signal;
the displacement sensor converts the acquired distance between the brake disc and the wheel into a distance electric signal;
the central processing unit generates a brake alarm signal when the quality electric signal is smaller than a set quality value and the distance electric signal is larger than a set distance value;
and the audible and visual alarm gives out audible and visual alarm after receiving the brake alarm signal.
2. The wheelchair with the brake reminding function of claim 1, further comprising a brake unit, wherein the brake unit is connected with a brake disc;
when the growth rate of the mass electric signal is smaller than a set growth rate and the distance electric signal is larger than a set distance value, the central processing unit generates an emergency braking signal;
and the brake unit fixes the distance between the brake disc and the wheel to a set distance value after receiving the emergency braking signal so as to limit the rotation of the wheel.
3. The wheelchair with the brake reminding function as claimed in claim 2, wherein the brake braking unit comprises: the brake disc comprises a motor, a gear and brake calipers which are connected in sequence, wherein the brake calipers are arranged on two sides of a brake disc;
the motor is connected with the central processing unit;
the motor rotates after receiving the emergency braking signal;
the gear drives the brake caliper to contract under the rotation of the motor, and the distance between the brake disc and the wheel is limited to a set distance value.
4. The wheelchair with the brake reminding function according to claim 1, further comprising a voice announcer and a Bluetooth module, wherein the voice announcer is connected with the central processing unit through the Bluetooth module and is arranged on a patient in a patch manner;
the voice broadcaster sends out voice prompt after receiving the brake alarm signal.
5. The wheelchair with the brake reminding function as claimed in claim 3, wherein the end of the brake caliper, which is in contact with the brake disc, is made of a wear-resistant material.
6. The wheelchair with the brake reminding function as claimed in claim 3, wherein the motor is a stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921272570.0U CN211560735U (en) | 2019-08-07 | 2019-08-07 | Wheelchair with brake reminding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921272570.0U CN211560735U (en) | 2019-08-07 | 2019-08-07 | Wheelchair with brake reminding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211560735U true CN211560735U (en) | 2020-09-25 |
Family
ID=72522177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921272570.0U Expired - Fee Related CN211560735U (en) | 2019-08-07 | 2019-08-07 | Wheelchair with brake reminding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211560735U (en) |
-
2019
- 2019-08-07 CN CN201921272570.0U patent/CN211560735U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20210807 |