阅读说明：本技术 具有弹性稳定单元和掌宽调节功能的握力计及其使用方法 (Grip dynamometer with elastic stabilizing unit and palm width adjusting function and using method thereof ) 是由 罗堪 赖智晨 黄炳法 张茂林 李建兴 马莹 陈炜 于 2019-09-29 设计创作，主要内容包括：本发明公开具有弹性稳定单元和掌宽调节功能的握力计及其使用方法,其包括握把、连接板、基板、压力传感器、集成电路板和电池。本发明提出的握力计设计了一种新型的弹性稳定组件,通过弹性稳定组件采用三角形稳定布局的设计,当力施加到稳定单元两端时,稳定单元本体以及各个稳定单元之间不发生晃动,不会对握力测量过程产生不好的影响,且传感器受力与握力计中心线一致。本发明还设置有掌宽调节机构,能够在测试时通过调节部件的结构适应不同使用者的掌宽大小,方便使用者对握力计的抓握,避免出现测量时握力计从手中脱落,握力计握把大小不适宜影响使用者施力等情况,保证测量过程稳定进行,测量结果更加准确。(The invention discloses a grip dynamometer with an elastic stabilizing unit and a palm width adjusting function and a using method thereof. According to the grip dynamometer provided by the invention, a novel elastic stabilizing assembly is designed, the elastic stabilizing assembly adopts a triangular stable layout design, when force is applied to two ends of a stabilizing unit, the stabilizing unit body and each stabilizing unit do not shake, the grip dynamometer measurement process is not affected badly, and the stress of a sensor is consistent with the central line of the grip dynamometer. The invention is also provided with a palm width adjusting mechanism, which can adapt to the palm width of different users through the structure of the adjusting part during testing, is convenient for the user to grasp the grip dynamometer, avoids the situations that the grip dynamometer falls off from the hand during measurement, the grip size of the grip of the dynamometer is not suitable for influencing the force application of the user and the like, ensures the stable measurement process and more accurate measurement result.)

1. Grip meter with elasticity stable unit and palm width regulatory function, its characterized in that: the pressure sensor comprises a handle, a connecting plate, a base plate, a pressure sensor, an integrated circuit board and a battery;

the two sides of the connecting plate are respectively connected with the handle through a palm width adjusting mechanism, and the palm width adjusting mechanism is used for adjusting the size of the interval between the handle and the connecting plate;

the pressure sensor is arranged in the middle of the connecting plate and the base plate, the bottom of the pressure sensor is fixed on the inner side surface of the base plate, and the detection head of the pressure sensor abuts against the inner surface of the connecting plate;

the connecting plate and the base plate are directly connected with two groups of elastic stabilizing assemblies symmetrically arranged on two sides of the pressure sensor, each elastic stabilizing assembly comprises three stabilizing units which are arranged in a triangular shape, each stabilizing unit comprises a large column and a small column which are sleeved together in a sliding mode, and damping springs connected between the connecting plate and the base plate are sleeved on the large column and the small column;

the integrated circuit board is embedded and fixed on the substrate, and the output end of the pressure sensor is electrically connected to the integrated circuit board;

and the base plate is provided with a battery jar, and the battery is connected in the battery jar and used for supplying power to the integrated circuit board.

2. The grip dynamometer having an elastic stabilization unit and a palm width adjustment function according to claim 1, wherein: the wide adjustment mechanism of palm includes spliced pole and setting element, the bottom of spliced pole is fixed on the connecting plate, and the top of spliced pole is cup jointed in the setting element, the lateral part at the handle is fixed to the setting element, and the inside bilateral symmetry interval of setting element is equipped with a plurality of constant head tanks, sliding connection has two bolts on the top of spliced pole, and threaded connection has the regulation double-screw bolt on the other end middle part of spliced pole, and the bottom of adjusting the double-screw bolt has the inclined plane cooperation that conical surface and two bolts correspond, be equipped with the compression spring that makes the bolt shrink reset in the both ends at spliced pole top respectively, drive the bolt through adjusting the.

3. The grip dynamometer having an elastic stabilization unit and a palm width adjustment function according to claim 1, wherein: the outer surface of the handle is provided with a finger placing radian which accords with the ergonomic design.

4. The grip dynamometer having an elastic stabilization unit and a palm width adjustment function according to claim 1, wherein: an isolation layer is fixed on the inner side face of the substrate, and the bottom of the pressure sensor is fixed on the isolation layer.

5. The grip dynamometer having an elastic stabilization unit and a palm width adjustment function according to claim 1, wherein: the integrated circuit board is provided with a microcontroller, an instrument amplifier and a Bluetooth module, the output end of the pressure sensor is connected to the microcontroller through the instrument amplifier, and the Bluetooth module is connected to the microcontroller.

6. The grip dynamometer having an elastic stabilization unit and a palm width adjustment function according to claim 1, wherein: the battery is electrically connected to the integrated circuit board through the power converter.

7. The grip dynamometer having an elastic stabilization unit and a palm width adjustment function according to claim 1, wherein: and the integrated circuit board is also provided with a plurality of LED indicating lamps electrically connected with the microcontroller, and each LED indicating lamp is used for indicating different working states of the system.

8. Use of a grip dynamometer according to one of claims 1-7, characterized by: the method comprises the following steps:

1) the user grips the grip dynamometer, and the pressure sensor detects a grip signal and transmits the grip signal to the integrated circuit board;

2) the integrated circuit board processes the grip strength signal to form user grip strength data, and then the user grip strength data is transmitted to the intelligent terminal through the Bluetooth module;

3) the intelligent terminal stores the grip strength data of the user to a cloud server through a public network;

4) a doctor accesses the grip strength data of a user on line through a public network, diagnoses the grip strength data and forms a diagnosis result;

5) the user views the diagnosis result on line through the public network.

Technical Field

The invention relates to the field of grip gauges, in particular to a grip gauge with an elastic stabilizing unit and a palm width adjusting function and a using method thereof.

Background

Grip strength is characterized by ease of measurement and stable performance and is therefore commonly used to assess muscle-related functions. At present, the traditional grip strength measuring tools are of hydraulic, pneumatic and mechanical types. However, the conventional measurement method generally has the following disadvantages: low accuracy of measurement results, large volume of the measuring instrument, poor autonomy and the like. For example, hydraulic grip gauges have hysteresis; the pneumatic grip dynamometer obtains a measurement result with larger difference due to different surface areas of hands of different users; the reproducibility of the mechanical grip strength measurement method is limited because the results are inconsistent due to different measurement positions. In addition, the grip strength meters do not have functions of a user interface, cloud data management and the like, and the use occasions of grip strength evaluation are limited.

Disclosure of Invention

The invention aims to provide a portable grip dynamometer with an elastic stabilizing unit and a palm width adjusting function, which has high precision and convenient use, and a using method thereof, and can facilitate the user to independently evaluate at home, effectively manage measured data and feed back in time.

In order to achieve the purpose, the invention adopts the following technical scheme:

the grip dynamometer with the elastic stabilizing unit and the palm width adjusting function comprises a grip, a connecting plate, a base plate, a pressure sensor, an integrated circuit board and a battery;

the two sides of the connecting plate are respectively connected with the handle through a palm width adjusting mechanism, and the palm width adjusting mechanism is used for adjusting the size of the interval between the handle and the connecting plate;

the pressure sensor is arranged in the middle of the connecting plate and the base plate, the bottom of the pressure sensor is fixed on the inner side surface of the base plate, and the detection head of the pressure sensor abuts against the inner surface of the connecting plate;

the connecting plate and the base plate are directly connected with two groups of elastic stabilizing assemblies symmetrically arranged on two sides of the pressure sensor, each elastic stabilizing assembly comprises three stabilizing units which are arranged in a triangular shape, each stabilizing unit comprises a large column and a small column which are sleeved together in a sliding mode, and damping springs connected between the connecting plate and the base plate are sleeved on the large column and the small column;

the integrated circuit board is embedded and fixed on the substrate, and the output end of the pressure sensor is electrically connected to the integrated circuit board;

and the base plate is provided with a battery jar, and the battery is connected in the battery jar and used for supplying power to the integrated circuit board.

The wide adjustment mechanism of palm includes spliced pole and setting element, the bottom of spliced pole is fixed on the connecting plate, and the top of spliced pole is cup jointed in the setting element, the lateral part at the handle is fixed to the setting element, and the inside bilateral symmetry interval of setting element is equipped with a plurality of constant head tanks, sliding connection has two bolts on the top of spliced pole, and threaded connection has the regulation double-screw bolt on the other end middle part of spliced pole, and the bottom of adjusting the double-screw bolt has the inclined plane cooperation that conical surface and two bolts correspond, be equipped with the compression spring that makes the bolt shrink reset in the both ends at spliced pole top respectively, drive the bolt through adjusting the.

The outer surface of the handle is provided with a finger placing radian which accords with the ergonomic design, so that a user can grasp the handle conveniently.

An isolation layer is fixed on the inner side face of the substrate, and the bottom of the pressure sensor is fixed on the isolation layer.

The integrated circuit board is provided with a microcontroller, an instrument amplifier and a Bluetooth module, the output end of the pressure sensor is connected to the microcontroller through the instrument amplifier, and the Bluetooth module is connected to the microcontroller.

The battery is electrically connected to the integrated circuit board through the power converter.

And the integrated circuit board is also provided with a plurality of LED indicating lamps electrically connected with the microcontroller, and each LED indicating lamp is used for indicating different working states of the system.

The use method of the grip dynamometer comprises the following steps:

1) the user grips the grip dynamometer, and the pressure sensor detects a grip signal and transmits the grip signal to the integrated circuit board;

2) the integrated circuit board processes the grip strength signal to form user grip strength data, and then the user grip strength data is transmitted to the intelligent terminal through the Bluetooth module;

3) the intelligent terminal stores the grip strength data of the user to a cloud server through a public network;

4) a doctor accesses the grip strength data of a user on line through a public network, diagnoses the grip strength data and forms a diagnosis result;

5) the user views the diagnosis result on line through the public network.

By adopting the technology, the invention has the following beneficial effects:

compared with the existing grip strength measuring method generally having errors, the grip strength meter provided by the invention designs a novel elastic stabilizing assembly, and the design of triangular stable layout is adopted by the elastic stabilizing assembly, so that when force is applied to two ends of a stabilizing unit, the stabilizing unit body and each stabilizing unit do not shake, the grip strength measuring process is not affected badly, and the stress of the sensor is consistent with the center line of the grip strength meter. Simultaneously, both ends are inlayed to the gripe dynamometer both sides about the stable unit, and the center links to each other with the gripe dynamometer body, and the cylinder is outer damping spring, and such structural design has guaranteed the uniformity of sensor atress direction and user's grip direction, has reduced because the uneven emergence that causes the inaccurate this kind of condition of data acquisition of sensor atress. The invention is also provided with a palm width adjusting mechanism, which can adapt to the palm width of different users through the structure of the adjusting part during testing, is convenient for the user to grasp the grip dynamometer, avoids the situations that the grip dynamometer falls off from the hand during measurement, the grip size of the grip of the dynamometer is not suitable for influencing the force application of the user and the like, ensures the stable measurement process and more accurate measurement result.

Compared with the existing grip strength measuring method, the grip strength meter provided by the invention has the advantages of small volume and convenience in carrying and grasping. The high-precision sensor, the high-performance microcontroller and the Bluetooth communication module are embedded, and a voltage-force conversion model is also arranged. The user uses the data that the grip timing gathered, through the preliminary treatment back, and data are sent intelligent terminal through the bluetooth, and intelligent terminal keeps on cloud server through public network, and the doctor can carry out online diagnosis through these data, and simultaneously, the user can look over the diagnostic result on line through computer or cell-phone software to realize measuring result's cloud management, convenience of customers carries out the self-evaluation in being at home. The sensor selected by the invention has the characteristics of high integration level, small volume and high sensitivity, so that the voltage and the grip strength value have high correlation and small measurement error. The invention reduces the occurrence of inaccurate data acquisition caused by uneven stress of the sensor. Therefore, the user can normally use the grip dynamometer device provided by the invention to carry out effective prevention and rehabilitation training.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and the detailed description;

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of an elastic stabilizing assembly;

FIG. 3 is a schematic view of a palm width adjustment mechanism;

FIG. 4 is a cross-sectional view of the top of the connecting post;

FIG. 5 is a block diagram of an integrated circuit board;

FIG. 6 is a flow chart of data transmission via Bluetooth;

FIG. 7 is a diagram of a web services framework;

FIG. 8 is a diagram of a web page design thinking guide;

fig. 9 is a flow chart of database upload/update.

Detailed Description

As shown in fig. 1-4, the grip dynamometer with elastic stabilization unit and palm width adjustment function of the present invention includes a grip 1, a connection plate 2, a base plate 3, a pressure sensor 4, an integrated circuit board 5 and a battery 6;

the two sides of the connecting plate 2 are respectively connected with the handle 1 through the palm width adjusting mechanism 7, and the palm width adjusting mechanism 7 is used for adjusting the size of the interval between the handle 1 and the connecting plate 2;

the pressure sensor 4 is arranged in the middle of the connecting plate 2 and the base plate 3, the bottom of the pressure sensor 4 is fixed on the inner side surface of the base plate 3, and the detection head of the pressure sensor 4 abuts against the inner surface of the connecting plate 2;

the connecting plate 2 and the base plate 3 are directly connected with two groups of elastic stabilizing assemblies symmetrically arranged at two sides of the pressure sensor 4, as shown in fig. 2, each elastic stabilizing assembly comprises three stabilizing units 8 which are arranged in a triangular shape, each stabilizing unit 8 comprises a large column 81 and a small column 82 which are sleeved together in a sliding manner, and a damping spring 83 connected between the connecting plate 2 and the base plate 3 is sleeved on the large column 81 and the small column 82; at both ends of the grip meter, the positions of every three stabilizing units 8 form a triangle, and the purpose of the triangle design is to avoid shaking between the cylindrical surfaces during the measurement process. The layout design of the stabilizing unit 8 adopts the triangle stability principle, and when the lengths of three sides of the triangle are all determined, the shape of the triangle is completely determined and is not changed any more. By applying the principle, when force is applied to the two ends of the stabilizing unit 8, the body of the stabilizing unit 8 and each cylindrical surface are not shaken, the grip strength measuring process is not affected, and the stress of the pressure sensor 4 is consistent with the central line of the grip strength meter, so that the whole measuring process is stably carried out, and the measuring result is more accurate.

In this embodiment, the height of the stabilizing unit 8 is only 18.5mm, the upper and lower both ends of the stabilizing unit 8 adopt the flat design, can inlay the both sides to the device, the center of the stabilizing unit 8 is the cylinder that links to each other with the grip meter body, the cylinder adopts the design that the columella 82 is being nested to columella 81, the length of columella 81 is only 5.5mm, the length of columella 82 is 11mm, damping spring 83 is outside the cylinder, reduce the impact of reaction force to the user when transmitting the grip to pressure sensor 4. More importantly, the elastic stabilizing unit 8 can ensure that the force applied to the elastic stabilizing unit is only in one direction during the use process, and the situation of tilting and shaking from side to side does not occur. The influence of difference between a measurement result and real data due to the fact that an angle exists between the stress of the sensor and the central line is avoided.

The integrated circuit board 5 is embedded and fixed on the substrate 3, and the output end of the pressure sensor 4 is electrically connected to the integrated circuit board 5.

The base plate 3 is provided with a battery 6 groove, and the battery 6 is connected in the battery 6 groove and used for supplying power to the integrated circuit board 5. The type of the battery 6 is the type of the battery 6 commonly used in life, and the internal lithium battery 6 is not selected, so that the user can conveniently replace the battery 6.

The wide adjustment mechanism 7 in palm includes spliced pole 71 and setting element 72, the bottom of spliced pole 71 is fixed on connecting plate 2, and the top of spliced pole 71 is cup jointed in setting element 72, the lateral part at handle 1 is fixed to setting element 72, and the inside bilateral symmetry interval of setting element 72 is equipped with a plurality of constant head tanks 721, sliding connection has two bolts 73 on the top of spliced pole 71, and threaded connection has regulation double-screw bolt 74 on the other end middle part of spliced pole 71, and the bottom of regulation double-screw bolt 74 has the inclined plane cooperation that conical surface and two bolts 73 correspond, be equipped with the compression spring 75 that makes bolt 73 shrink reset in the both ends at spliced pole 71 top respectively, adjust double-screw bolt 74 through adjusting and drive bolt 73 and. When the palm width adjusting mechanism needs to be adjusted, the adjusting stud 74 is screwed outwards, the plug pin 73 is pulled out from the slot, then the handle is moved, the adjusting stud 74 is screwed inwards after the handle reaches a proper position, and the plug pin 73 is inserted into the corresponding wiping slot.

In order to facilitate the grasping of the user, the outer surface of the grip 1 is provided with a finger placing radian which is in accordance with the ergonomic design.

An isolation layer 9 is fixed on the inner side surface of the substrate 3, and the bottom of the pressure sensor 4 is fixed on the isolation layer 9. By providing the isolation layer 9, the purpose is to isolate the pressure sensor 4 from other devices, ensuring the measurement accuracy of the pressure sensor 4.

As shown in fig. 5, the integrated circuit board has a microcontroller, an instrumentation amplifier, and a bluetooth module, the output end of the pressure sensor is connected to the microcontroller through the instrumentation amplifier, and the bluetooth module is connected to the microcontroller. The battery is electrically connected to the integrated circuit board through the power converter. Wherein, the pressure sensor is a ZNHM-III sensor, the model of the microcontroller is STM32F103C8, and the model of the power converter is ICL 7660.

ICL7660 is a low power polarity inverting power converter that works with two batteries to provide a voltage of 5V to the system. The ZNM-III sensor is used for collecting grip strength signals. STM32F103C8 is a 32-bit ARM core microcontroller whose advantages include high performance, low power consumption, low cost, and abundant peripherals. The main tasks of the microcontroller are analog-to-digital conversion (ADC), actual grip value calculation, and data transfer control. After analog-to-digital conversion, the voltage value is calculated according to a voltage-force conversion model to obtain user grip strength data. The Bluetooth module is used for transmitting data to an intelligent terminal (which can be a mobile phone or a tablet personal computer), and is convenient to be connected with other equipment, such as a notebook computer. In addition, a plurality of LED indicating lamps electrically connected with the microcontroller are further arranged on the integrated circuit board, and each LED indicating lamp is used for indicating different working states of the system.

The use method of the grip dynamometer comprises the following steps:

1) the user grips the grip dynamometer, and the pressure sensor detects a grip signal and transmits the grip signal to the integrated circuit board;

2) the integrated circuit board processes the grip strength signal to form user grip strength data, and then the user grip strength data is transmitted to the intelligent terminal through the Bluetooth module;

3) the intelligent terminal stores the grip strength data of the user to a cloud server through a public network;

4) a doctor accesses the grip strength data of a user on line through a public network, diagnoses the grip strength data and forms a diagnosis result;

5) the user views the diagnosis result on line through the public network.

In order to realize the internet function of the grip dynamometer data, the embodiment designs a java application program to acquire the grip strength data. The data transmission flow chart by bluetooth is shown in fig. 6. To determine if the device supports bluetooth, a detection statement "bluetooth adapter" is added to ensure that the program is working properly. If the device does not support bluetooth, the software will shut down. If the device passes the detection of the bluetooth adapter, the programmed bluetooth switch is triggered, a request is sent to the system interface, and a bluetooth open request dialog box is popped up. If the data is not received correctly, an "error" may be displayed on the system interface. After the program has completed the reception of the grip data, it creates a process named "getInputStream" to store the user grip data.

The web services framework is shown in figure 7. The network service mainly comprises MYSQL and Alibara cloud servers. MYSQL transmits grip data received by bluetooth to the database. The database sends and stores data on the cloud server through the intelligent terminal connected with the public network. Through the Alibayun server, the doctor can access the database online and make a diagnosis. And the user can log in the own account to check the diagnosis result. Through the network service framework, the user can be evaluated at home, and the trouble of going to a hospital is avoided.

In addition, a web page is designed to facilitate online diagnosis, and a web page design thinking guide diagram is shown in fig. 8. In order to ensure data security, user management, i.e., account establishment and password setting, is performed first. Each user has his own account number and can only upload data after logging in. Next, a database is created to store grip strength data. The data that this database needs to store includes time, user and grip values. The doctor logs in the account, checks the information of the user on the left side of the page, and inputs a diagnosis result on the upper right corner.

A database upload/update flow chart is shown in fig. 9. First, a database driver is loaded to connect properly, and then the database is accessed using a particular account and password. And determining whether the connection is overtime, and if so, directly closing the database. After successfully connecting to the database, accessing the Bluetooth and the software, uploading/updating grip strength data records to the database for display, and finally closing the database.

While the invention has been described in connection with the above embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, which are illustrative and not restrictive, and that those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.