An elderly perception testing system and testing method
By combining a universal joint with a cylinder, the problem of inaccurate test results under cylinder support is solved, and stable switching between static and dynamic balance tests is achieved, ensuring the accuracy and safety of test results.
Patent Information
- Application Number
- CN202411045499.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2044-08-01
AI Technical Summary
In the prior art, the balance testing device supported by the cylinder is prone to inaccurate test results during static testing due to unstable air pressure, and the cylinder is also prone to air leakage, which affects the test results.
The test stand adopts a combination structure of universal joint and cylinder. The lifting and lowering adjustment of the test stand is realized through the telescopic rod of cylinder one and universal joint, while the telescopic rod of cylinder two provides dynamic support. Combined with the limit structure and air circuit system, the stability of the test stand in different states is ensured.
It enables switching between static and dynamic balance testing, avoids the impact of air pressure instability on test results, and ensures the stability and accuracy of the test stand under different conditions.
Smart Images

Figure CN118948214B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and more specifically, to an elderly perception testing system and a method for elderly perception testing. Background Technology
[0002] Balance, as one of the core human skills, profoundly impacts our daily lives, especially for those entering old age or suffering from specific diseases. Its importance is self-evident. Pre-assessing and gaining a thorough understanding of an individual's balance ability can not only sound the alarm for potential health problems and provide early warnings of diseases, but also lay the foundation for developing personalized training programs. For example, assessments can identify the risk of falls in older adults, allowing for targeted training measures to effectively reduce fall accidents and ensure their safety and health.
[0003] Balance ability testing is mainly divided into two types: static balance ability testing and dynamic balance ability testing. During static balance ability testing, the test base remains stationary, and the tester needs to perform specified actions such as squatting and standing on the stationary test base. Sensor components on the upper surface of the test base detect the corresponding parameter data, and the data is analyzed and processed to achieve the static balance ability test.
[0004] During the dynamic balance capability test, the test stand of the testing equipment can be tilted, and the tester performs specified actions such as squatting and standing on the test stand. The corresponding parameter data is detected by the sensor components on the upper surface of the test stand, and the dynamic balance capability test is achieved by analyzing and processing the data.
[0005] Chinese patent CN117883051A discloses a multi-cylinder-based dynamic-static switching balance capability testing device and method. This device enables the switching between dynamic and static testing via individual cylinders, allowing for the testing of both balance capabilities with a single device. In this design, during static testing, the lower part of the test base is supported by high-pressure cylinders. The cylinders maintain the stability of the entire test base (i.e., the test seat), thus facilitating static balance testing.
[0006] However, during static balance testing, air pressure provides support. When the cylinder is subjected to pressure at its extension end, it creates pressure within the cylinder, causing it to slightly retract in response to external pressure. Although the retraction is short, it can significantly impact the test results. Furthermore, air leakage is prone to occur inside the cylinder. As the test continues, the pressure inside the cylinder gradually decreases, potentially causing the test base plate to shift elastically, creating a state similar to dynamic testing. Even when an air pump replenishes the cylinder, unstable air pressure can still occur, leading to inaccurate test results.
[0007] Therefore, a new solution is needed to address this problem. Summary of the Invention
[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide an elderly perception testing system that can test dynamic and static balance abilities.
[0009] To achieve the above objectives, the present invention adopts the following technical solution: an elderly perception testing system, comprising a base, a testing seat, a universal joint, a cylinder one, and several cylinders two. The cylinder one is mounted on the base and includes a telescopic rod one, which is vertically arranged and adjustable up and down. The testing seat is located above the telescopic rod one, and the lower middle of the testing seat is connected to the upper end of the telescopic rod one via the universal joint. The testing seat can tilt and swing relative to the telescopic rod one. The cylinders two are mounted on the base, and each cylinder two is distributed in a ring around the outer periphery of the cylinder one. Each cylinder two includes a telescopic rod two, which is vertically arranged and adjustable up and down. The upper end of the telescopic rod two can abut against the lower side of the testing seat.
[0010] The present invention is further configured such that an annular support block is fixedly connected to the lower side of the base, the outline of the annular support block is smaller than that of the test seat, and both telescopic rod one and telescopic rod two fall within the inner circumference of the annular support block; when the telescopic rod one and telescopic rod two are in the retracted state, the lower side of the annular support block abuts against the upper side of the base, and the base can support the annular support block.
[0011] The present invention is further configured such that the lower part of the annular support block is provided with an annular limiting part one, and the upper side of the base is provided with an annular limiting part two corresponding to the position of the annular limiting part one. The limiting part one and the limiting part two are adapted to each other, and the lower side of the annular support block abuts against the upper side of the base, so that the limiting part one and the limiting part two are fitted together to achieve rotational limiting.
[0012] The present invention is further configured such that the first limiting part includes a plurality of first limiting teeth, each first limiting tooth being arranged in a circular array along the circumferential direction of the annular support block; the second limiting part includes a plurality of second limiting teeth, each second limiting tooth being arranged in a circular array along the circumferential direction of the annular support block, and the first limiting teeth and the second limiting teeth are mutually fitted together.
[0013] The present invention is further configured such that the universal connector includes a connector seat, a connector cover, a sphere, and a fixing part. The connector seat is fixedly connected to the upper end of the telescopic rod. The upper part of the connector seat has a hemispherical recess, and the connector cover has a hemispherical recess. The connector seat and the connector cover are threaded together to form a cavity that fits the sphere after being closed. The upper part of the connector cover has a through hole in the middle, which passes through the hemispherical recess. The upper part of the sphere can extend from the middle of the upper part of the connector cover, and the upper part of the sphere is connected and fixed to the bottom of the test seat through the fixing part. The sphere and the test seat can rotate and tilt relative to the telescopic rod.
[0014] The invention is further configured to include an air pump, a three-way valve, a main air path one, a main air path two, and a main air path three. The three-way valve includes a first end, a second end, and a third end, and the second end and the third end of the three-way valve can be switched on and off. The first end of the three-way valve is connected to the air pump, and the second end of the three-way valve is connected to the main air path two. The main air path two is connected to several branch air paths one, and each branch air path one corresponds to a cylinder two. Each branch air path one is connected to a cylinder two, and each branch air path one is equipped with a valve. The telescopic rod two of the cylinder two is pushed upward by air pressure.
[0015] The present invention is further configured such that the main air passage two is connected to a branch air passage two, and the branch air passage two is equipped with a vent valve one.
[0016] The invention is further configured such that the third end of the three-way valve is connected to the main air passage three, the main air passage is connected to the cylinder one, and the telescopic rod one of the cylinder one is pushed upward by air pressure; the main air passage three is connected to the branch air passage three, and the branch air passage three is equipped with the vent valve two.
[0017] The present invention is further configured such that a plurality of fixing blocks are fixedly connected to the lower part of the test base, the fixing blocks correspond one-to-one with the telescopic rods, a slider is provided on the side of the fixing block near the annular support block, a sliding groove is provided on the lower side of the test base, the slider is slidably adapted to the sliding groove, the slider can slide and adjust between the annular support block and the fixing block, and a tension spring is elastically connected between the slider and the fixing block.
[0018] The invention is further configured such that a transverse through hole is provided at the upper end of the telescopic rod 2, and a rope is threaded through the through hole. One end of the rope is connected to the inner circumference of the annular support block, and the other end is connected to the slider; the rope is used to restrict the rotation of the test seat.
[0019] The present invention is further configured such that a support seat is provided on the upper part of the base corresponding to the lower side of the rope, a support member is installed on the support seat, and an elastic part is sleeved on the outer periphery of the support member; after the test seat is lowered, the elastic part of the support member elastically presses against the rope, and the rope is clamped by the test seat and the elastic part of the support member to realize the rope limit.
[0020] The present invention is further configured such that the support member is a support wheel, the support wheel is rotatably connected to the support base, and the elastic part is sleeved on the outer periphery of the support wheel.
[0021] The present invention also provides a method for testing elderly perception, which uses the elderly perception testing system described above to test static balance ability and dynamic balance ability separately.
[0022] In summary, the present invention has the following beneficial effects:
[0023] The test stand can be adjusted up and down by the extension and retraction of cylinder one. In the raised state, the test stand is mainly supported by the universal joint, and the test stand can tilt and swing under the support of the universal joint, thus achieving dynamic balance testing. When cylinder one retracts, the test stand can be in the lowered state. The test stand is directly supported by the base, and the universal joint at the bottom of the test stand does not play a supporting role. The test stand will remain stable and thus can be used for static balance testing.
[0024] The universal joint is directly installed on the telescopic rod of cylinder one, enabling the entire test seat to be raised and lowered. This allows for switching between static and dynamic balance testing. During static balance testing, the test seat is not supported by air pressure, thus completely overcoming the instability caused by air pressure. During dynamic testing, the air pressure inside cylinder one is higher, capable of supporting the weight of the tester. The telescopic rod one will not elastically retract during the test. Even if there are fluctuations in air pressure or minor leaks inside cylinder one, these will be reflected in the test seat as a tilting or swaying motion, thus having little impact on the test. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of an elderly perception testing system in this embodiment. Figure 1 ;
[0026] Figure 2 This is a schematic diagram of the air passage connection structure between cylinder one and cylinder two in this embodiment;
[0027] Figure 3 This is a schematic diagram of the universal connector in this embodiment;
[0028] Figure 4 This is a schematic diagram of the structure of an elderly perception testing system in this embodiment. Figure 2 ;
[0029] Figure 5 This is a schematic diagram of the structure of limiting part one and limiting part two in this embodiment;
[0030] Figure 6 This is a schematic diagram of the limiting mechanism in this embodiment.
[0031] Reference numerals: 1. Base; 101. Annular enclosure; 102. Limiting part two; 103. Limiting tooth two; 2. Test seat; 201. Sensor assembly; 3. Cylinder one; 301. Telescopic rod one; 4. Universal connector; 401. Connector seat; 402. Connector cover; 403. Sphere; 404. Fixing part; 5. Cylinder two; 501. Telescopic rod two; 502. Through hole; 6. Annular support block; 601. Limiting part one; 602. Limiting tooth one; 7. Slider; 8. 9. Rope; 10. Fixing block; 11. Slide groove; 12. Tension spring; 13. Support base; 14. Support component; 15. Elastic part; 16. Air pump; 17. Three-way valve; 18. First end; 19. Second end; 10. Third end; 11. Main air passage one; 12. Main air passage two; 13. Branch air passage one; 14. Valve; 15. Branch air passage two; 16. Air release valve one; 17. Main air passage three; 18. Branch air passage three; 19. Air release valve two. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] This embodiment discloses an elderly perception testing system, referring to... Figure 1 , Figure 2 , Figure 3 As shown, it includes a base 1, a test seat 2, a universal connector 4, a cylinder 3 and several cylinders 5. The cylinder 3 is installed in the middle of the base 1. The cylinder 3 includes a telescopic rod 301, which is vertically arranged and can be adjusted up and down.
[0034] The test seat 2 is located above the telescopic rod 301. The lower middle of the test seat 2 is connected to the upper end of the telescopic rod 301 through the universal joint 4, so that the test seat 2 can tilt and swing relative to the telescopic rod 301, and then perform dynamic balance test on the user during the tilting and swinging process.
[0035] The number of cylinders 25 is generally four or more, and each cylinder 25 is arranged in a circular array around the outer periphery of cylinder 13. Cylinder 25 includes a telescopic rod 201, which is adjustable in height and can extend and retract. The upper end of the telescopic rod 201 abuts against the lower side of the test seat 2. By pushing the telescopic rod 201 upward, it can apply supporting pressure to the lower side of the test seat 2, thereby keeping the entire test seat 2 in a relatively balanced state. When the upper part of the test seat 2 is subjected to a tilting force, the test seat 2 can press down on the corresponding telescopic rod 201, causing the telescopic rod 201 to retract into cylinder 25. The telescopic rod 201 can elastically extend and retract relative to cylinder 25, thereby allowing the test seat 2 to elastically tilt, forming a tilting and swinging state, which can perform dynamic balance tests on the user.
[0036] A sensor assembly 201 is also provided on the upper side of the test stand 2. The sensor assembly 201 includes several thin-film pressure sensors or accelerometers. Both thin-film pressure sensors and accelerometers are common existing sensor elements, which enables the collection of force data. The arrangement of the thin-film pressure sensors and accelerometers is also existing technology, so it will not be described in detail here.
[0037] An annular barrier 101 is fixedly connected to the upper outer periphery of the base 1. The annular barrier 101 is fixedly connected to the base 1 and encloses the test seat 2, cylinder 3, and cylinder 5 inside, thus blocking the gap between the base 1 and the test seat 2. The annular barrier 101 and the base 1 can be detachable for easy disassembly and maintenance.
[0038] An annular support block 6 is fixedly connected to the lower side of the base 1. The outline of the annular support block 6 is smaller than that of the test seat 2, and both the first telescopic rod 301 and the second telescopic rod 501 fall within the inner circumference of the annular support block 6. When the first telescopic rod 301 and the second telescopic rod 501 are in the retracted state, the test seat 2 descends relative to the base 1, and the lower side of the annular support block 6 on the lower side of the test seat 2 abuts against the upper side of the base 1, thus the base 1 can support the annular support block 6. After being supported by the base 1, the test seat 2 will not wobble, thereby achieving a static balance test.
[0039] Reference Figure 2 As shown, the testing system in this embodiment also includes an air pump 13, a three-way valve 14, a main air path 15, a main air path 2 16, and a main air path 3 17. By combining the air pump 13 and each air path, a high-pressure gas system can be formed, which can then adjust the internal pressure of cylinder 1 3 and cylinder 2 5, thereby realizing the action of cylinder 1 3 and cylinder 2 5 and achieving the lifting and lowering adjustment of the test seat 2.
[0040] The three-way valve 14 includes a first end 141, a second end 142 and a third end 143. The first end 141 of the three-way valve 14 is connected to the air pump 13, and the second end 142 and the third end 143 of the three-way valve 14 can switch on and off.
[0041] The second end 142 of the three-way valve 14 is connected to the main air passage 16. The main air passage 16 is connected to several branch air passages 161, each corresponding to a cylinder 5. Each branch air passage 161 is connected to a specific cylinder 5. A piston is installed inside cylinder 5, dividing its internal cavity into upper and lower parts. Branch air passages 161 are connected to the lower chamber of cylinder 5, while the upper chamber is connected to the outside. The telescopic rod 501 is directly connected to the piston, enabling lifting and lowering movements.
[0042] When the lower chamber of cylinder 25 is filled with high-pressure gas, the piston and telescopic rod 2501 are pushed upwards, and the air pressure creates a certain elasticity, allowing the telescopic rod 2501 to be elastically compressed under pressure. The elasticity parameter of the telescopic rod 2501 can be adjusted by regulating the air pressure in the lower chamber of cylinder 25. A valve 162 is installed in each branch air passage 161, allowing for independent on / off control of each branch air passage 161, thus enabling independent adjustment of each branch air passage 161.
[0043] Main air passage 2 16 is connected to branch air passage 2 163, which is equipped with a vent valve 1 164. The vent valve 1 164 can release the gas pressure in the pipeline. When cylinder 2 5 needs to retract, valve 162 of branch air passage 1 161 can be opened, and then the pressure in cylinder 2 5 can be released through vent valve 1 164, allowing the telescopic rod 2 501 to descend.
[0044] The third end 143 of the three-way valve 14 is connected to the main air passage 17, which is connected to cylinder 3. The structure of cylinder 3 is similar to that of cylinder 5. When the telescopic rod 301 of cylinder 3 is pushed upward by air pressure, it is also connected to the branch air passage 171. The branch air passage 171 is equipped with a vent valve 172, which can release the gas pressure in the pipeline. When cylinder 3 needs to retract, the gas pressure in the pipeline can be released through the vent valve 172, and the telescopic rod 301 can then descend, which can drive the universal joint 4 and the test seat 2 to rise and fall. This allows the lifting seat to be supported after descending and maintain good stability, thus enabling static support testing.
[0045] Furthermore, in this embodiment, the universal connector 4 can be further designed so that the test seat 2 can not only achieve tilt and swing adjustment, but also rotation, and can achieve multiple dynamic tests of tilt and rotation.
[0046] Reference Figure 3 As shown, the universal connector 4 in this embodiment includes a connector seat 401, a connector cover 402, a ball 403, and a fixing part 404. The connector seat 401 is fixedly connected to the upper end of the telescopic rod 301, and a hemispherical recess is provided in the upper part of the connector seat 401. The connector cover 402 has a hemispherical recess facing downward. The connector seat 401 and the connector cover 402 are threaded together. After the connector seat 401 and the connector cover 402 are closed, a cavity that fits the ball 403 is formed.
[0047] A through hole 502 is provided in the middle of the upper part of the connector cover 402, and the through hole 502 passes through the hemispherical recess. When the ball 403 is embedded in the hemispherical recess of the connector cover 402, the upper part of the ball head can protrude from the middle of the upper part of the connector cover 402. And the upper part of the ball 403, corresponding to the position where it protrudes from the connector cover 402, is fixedly connected to a fixing part 404, which extends upward and is connected and fixed to the bottom of the test seat 2 through the fixing part 404. The ball 403 can swing omnidirectionally between the connector seat 401 and the connector cover 402. The test seat 2 and the ball 403 are fixedly connected to each other, and thus can also swing omnidirectionally, thereby performing dynamic tilt tests on the tester.
[0048] Because the sphere 403 component can achieve omnidirectional swing adjustment and rotation adjustment, the connector 401 can rotate. The sphere 403 and the test seat 2 can rotate and tilt relative to the telescopic rod 301, thereby achieving multiple rotation adjustments of tilt and rotation.
[0049] Furthermore, in this embodiment, the structure for the static testing state can be further optimized by setting a limiting structure between the annular support block 6 and the base 1. After the test seat 2 descends, the annular support block 6 at the bottom of the test seat 2 will be limited, so that the test seat 2 will not rotate, thereby enabling the test seat 2 to be in a stable and static position.
[0050] Reference Figure 4 , Figure 5 As shown, an annular limiting part 601 is provided at the lower part of the annular support block 6, and an annular limiting part 102 is provided on the upper side of the base 1 corresponding to the position of the annular limiting part 601. The limiting part 601 and the limiting part 102 are mutually adapted. After the test seat 2 is lowered, the lower side of the annular support block 6 abuts against the upper side of the base 1, and the limiting part 601 and the limiting part 102 engage with each other to achieve rotational limitation.
[0051] Specifically, both the first limiting part 601 and the second limiting part 102 can adopt a toothed structure. The first limiting part 601 includes a plurality of limiting teeth 602, which are arranged in a circular array along the circumferential direction of the annular support block 6. The second limiting part 102 includes a plurality of limiting teeth 103, which are arranged in a circular array along the circumferential direction of the annular support block 6, and the first limiting teeth 602 and the second limiting teeth 103 are mutually fitted. When the first limiting teeth 602 and the second limiting teeth 103 approach each other, they can fit together to achieve relative positioning, so that the test seat 2 can be in a stable support state and cannot rotate.
[0052] Furthermore, referring to Figure 4 , Figure 6 As shown, a limiting mechanism is set between the telescopic rod 501 and the test seat 2. The limiting mechanism can limit the rotation range of the test seat 2. The limiting mechanism specifically includes a fixed block 9, a slider 7 and a rope 8. The rope 8 mutually restricts the telescopic rod 501, thereby limiting the maximum range of rotation of the test seat 2.
[0053] Specifically, several fixing blocks 9 are fixedly connected to the lower part of the test base 2, and each fixing block 9 corresponds one-to-one with the telescopic rod 501. A slider 7 is provided on the side of the fixing block 9 near the annular support block 6, and a sliding groove 10 is opened on the lower side of the test base 2, with the slider 7 slidingly adapted to the sliding groove 10. The slider 7 can slide and adjust between the annular support block 6 and the fixing blocks 9, and a tension spring 11 is elastically connected between the slider 7 and the fixing blocks 9. The tension spring 11 can form an elastic effect between the fixing blocks 9 and the slider 7, which can limit the slider 7 from sliding towards the annular support block 6.
[0054] The number of cables 8 corresponds one-to-one with the number of telescopic rods 501. A transverse through-hole 502 is provided at the upper end of each telescopic rod 501, through which cables 8 are threaded. One end of each cable 8 is connected to the inner circumference of the annular support block 6, and the other end is connected to the slider 7. The cables 8 restrict the rotation of the test seat 2. The two ends of the pull rope are connected between the annular support block 6 and the slider 7, respectively, and pass through the through-hole 502 of the telescopic rod 501. When the test seat 2 rotates, it will rotate relative to the telescopic rod 501, causing a relative positional change between the upper part of the telescopic rod 501 and the pull rope. The cables 8 will be pulled, and the slider 7 will slide slightly towards the annular support block 6. The tension spring 11 between the slider 7 and the fixed block 9 will be stretched, increasing its elasticity. This elasticity is transmitted to the cables 8, limiting the movement of the telescopic rod 501. Furthermore, as the rotation angle of the test seat 2 increases, the elastic deformation of the test spring 11 increases, and the resistance transmitted to the cable 8 to the test seat 2 will also increase, thereby limiting the test seat 2 from generating large rotational movements.
[0055] Furthermore, each set of ropes 8 is equipped with a support seat 12 and a support member 1201 at its lower part, which can restrict the ropes 8 when the test seat 2 is lowered or tilted to an excessive angle.
[0056] Specifically, a support base 12 is provided on the upper part of the base 1 corresponding to the lower side of the cable 8, and the support base 12 is fixedly connected to the base 1. A support member 1201 is installed on the support base 12. Furthermore, an elastic part 1202 is sleeved on the outer periphery of the support member 1201. The elastic part 1202 has a certain elasticity and can form a certain range of elastic buffer deformation.
[0057] After the test seat 2 descends, the elastic part 1202 of the support member 1201 elastically presses against the cable 8. The cable 8 is clamped by the test seat 2 and the elastic part 1202 of the support member 1201. The elastic part 1202 of the support member 1201 and the test seat 2 apply a certain pressure to the cable 8, so that the cable 8 at the contact point can remain fixed. The part of the cable 8 through which the telescopic rod 2 501 passes will be isolated from the part of the cable 8 connecting the slider 7. The cable 8 can pull and limit the telescopic rod 2 501, and this section of the cable 8 will not be stretched further, thereby keeping the test seat 2 in a stable position after descending. This compensates for the limiting effect of the limiting part 1 601 and the limiting part 2 102, maintaining the stability of the static test process.
[0058] When the test seat 2 is in the rising state, i.e. during the dynamic balance test, if the test seat 2 tilts and swings to an excessively large amplitude, the test seat 2 on the corresponding side will tilt and descend. The bottom of the test seat 2 will also come into contact with the elastic part 1202 of the support member 1201. As a result, the cable 8 on that side will also be squeezed by the elastic part 1202 of the support member 1201 and the test seat 2. At this contact point, the cable 8 can be clamped and fixed, and the positional stability of the test seat 2 can be maintained. This prevents the test seat 2 from being dangerous due to excessive tilt angles and excessive rotation angles overlapping during the dynamic test.
[0059] Furthermore, the support member 1201 is a support wheel, which is rotatably connected to the support base 12. The elastic part 1202 is an elastic layer sleeved on the outer periphery of the support wheel, which can form a certain elastic deformation. When the support wheel presses against the bottom of the test base 2, the elastic layer has stable friction with the bottom of the test base 2, thereby playing a role in clamping and fixing. Moreover, since the support wheel can rotate, when the support wheel and the cable 8 have a small elastic pressure, it can play a guiding role, preventing excessive wear of the cable 8.
[0060] This embodiment also discloses an elderly perception test method, which uses the elderly perception test system as described in the above embodiment for testing.
[0061] During static testing, the above-mentioned testing system switches to static testing mode, depressurizes cylinder 3 and cylinder 5, and lowers telescopic rods 301 and 501. The annular support block 6 on the lower side of the test seat 2 presses against the upper side of the base 1, thereby providing stable support for the test seat 2 and keeping the test seat 2 in a stable supported state. The universal joint 4 does not play a supporting or adjusting role.
[0062] During dynamic testing, the aforementioned testing system switches to dynamic testing mode. Air pump 13 first pressurizes cylinder 3, and the third end 143 of the three-way valve 14 opens, allowing air pump 13 to connect to cylinder 3 via main air path 15, three-way valve 14, and main air path 17. Air pump 13 pressurizes the inside of cylinder 3, causing the telescopic rod 301 to extend upwards, and the universal joint 4 and test seat 2 to rise. Furthermore, the internal pressure of cylinder 3 is relatively high, capable of withstanding the weight of the tester, and the telescopic rod 301 will not elastically retract during the test.
[0063] Then, the three-way valve 14 closes the third end 143 and opens the second end 142. Simultaneously, the valves 162 of each branch air passage 161 open, and the air pump 13 pressurizes the cylinder 2 5, causing the telescopic rod 2 501 to extend upwards. Supported by the telescopic rods 2 501, the test seat 2 is roughly balanced. Then, the valves 162 of each branch air passage 161 close, maintaining a certain pressure within the cylinder 2 5 and disconnecting the cylinders 2 5 from each other to prevent cross-flow interference. The pressure within the cylinder 2 5 is relatively low. When the upper part of the test seat 2 experiences a shift in force, the test seat 2 will tilt to one side, causing the corresponding telescopic rod 2 501 to partially retract into the cylinder 2 5, forming an elastic cylinder state. Through extension and retraction, it provides elastic support, thus enabling dynamic testing of the tester.
[0064] During testing, the tester stands on the upper part of the test stand 2 and performs corresponding actions according to the test requirements. The sensor component 201 on the upper surface of the test stand 2 can detect data on various parameters such as force. By analyzing the data collected by the sensor component 201, specific results can be obtained.
[0065] In addition, to ensure the safety of the testing process, a protective fence can be installed around the testing system or test personnel can wear safety protective equipment to ensure the safety of the testing process.
[0066] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. An elderly perception testing system, characterized in that, The device includes a base (1), a test seat (2), a universal joint (4), a cylinder (3), and several cylinders (5). The cylinder (3) is mounted on the base (1). The cylinder (3) includes a telescopic rod (301), which is vertically arranged and can be adjusted up and down. The test seat (2) is located above the telescopic rod (301). The lower middle of the test seat (2) is connected to the upper end of the telescopic rod (301) through the universal joint (4). The test seat (2) can tilt and swing relative to the telescopic rod (301). The cylinders (5) are mounted on the base (1), and each cylinder (5) is distributed in a ring around the outer periphery of the cylinder (3). The cylinders (5) include a telescopic rod (501), which is vertically arranged and can be adjusted up and down. The upper end of the telescopic rod (501) can abut against the lower side of the test seat (2). The lower part of the test seat (2) is fixedly connected to several fixing blocks (9), and the fixing blocks (9) correspond one-to-one with the telescopic rod (501). A slider (7) is provided on the side of the fixing block (9) near the annular support block (6). A sliding groove (10) is provided on the lower side of the test seat (2). The slider (7) is slidably adapted to the sliding groove (10). The slider (7) can slide and adjust between the annular support block (6) and the fixing block (9). A tension spring (11) is elastically connected between the slider (7) and the fixing block (9). The upper end of the telescopic rod 2 (501) is provided with a horizontal through hole (502), and a rope (8) is inserted through the through hole (502). One end of the rope (8) is connected to the inner circumference of the annular support block (6), and the other end is connected to the slider (7). The rope (8) is used to restrict the rotation of the test seat (2). A support seat (12) is provided on the upper part of the base (1) corresponding to the lower side of the rope (8). A support member (1201) is installed on the support seat (12). An elastic part (1202) is sleeved on the outer periphery of the support member (1201). After the test seat (2) is lowered, the elastic part (1202) of the support member (1201) elastically presses against the rope (8). The rope (8) is clamped by the test seat (2) and the elastic part (1202) of the support member (1201), thereby limiting the rope (8). The support member (1201) is a support wheel, which is rotatably connected to the support base (12), and the elastic part (1202) is sleeved on the outer periphery of the support wheel.
2. The elderly perception testing system according to claim 1, characterized in that, An annular support block (6) is fixedly connected to the lower side of the base (1). The outline of the annular support block (6) is smaller than that of the test seat (2), and the first telescopic rod (301) and the second telescopic rod (501) both fall within the inner circumference of the annular support block (6). When the first telescopic rod (301) and the second telescopic rod (501) are in the retracted state, the lower side of the annular support block (6) abuts against the upper side of the base (1), and the base (1) can support the annular support block (6).
3. The elderly perception testing system according to claim 2, characterized in that, The lower part of the annular support block (6) is provided with an annular limiting part one (601), and the upper side of the base (1) is provided with an annular limiting part two (102) corresponding to the position of the annular limiting part one (601). The limiting part one (601) and the limiting part two (102) are adapted to each other. The lower side of the annular support block (6) abuts against the upper side of the base (1), and the limiting part one (601) and the limiting part two (102) are fitted together to achieve rotational limiting.
4. The elderly perception testing system according to claim 3, characterized in that, The first limiting part (601) includes a plurality of limiting teeth (602), each limiting tooth (602) being arranged in a ring array along the circumferential direction of the annular support block (6); the second limiting part (102) includes a plurality of limiting teeth (103), each limiting tooth (103) being arranged in a ring array along the circumferential direction of the annular support block (6), and the first limiting teeth (602) and the second limiting teeth (103) are fitted together.
5. The elderly perception testing system according to claim 1, characterized in that, The universal connector (4) includes a connector seat (401), a connector cover (402), a sphere (403), and a fixing part (404). The connector seat (401) is fixedly connected to the upper end of the telescopic rod (301). The upper part of the connector seat (401) has a hemispherical recess, and the connector cover (402) has a hemispherical recess. The connector seat (401) and the connector cover (402) are threaded together and, when closed, form a connection with the sphere (403). The fitting cavity; the upper part of the connector cover (402) is provided with a through hole (502) in the middle, the through hole (502) passes through the hemispherical recess, the upper part of the ball (403) can extend from the upper part of the connector cover (402), and the upper part of the ball (403) is connected and fixed to the bottom of the test seat (2) by a fixing part (404); the ball (403) and the test seat (2) can rotate and tilt relative to the telescopic rod (301).
6. The elderly perception testing system according to claim 1, characterized in that, It also includes an air pump (13), a three-way valve (14), a main air path one (15), a main air path two (16), and a main air path three (17). The three-way valve (14) includes a first end (141), a second end (142), and a third end (143). The second end (142) and the third end (143) of the three-way valve (14) can be switched on and off. The first end (141) of the three-way valve (14) is connected to the air pump (13). The second end (142) of the valve (14) is connected to the main air passage two (16), which is connected to several branch air passages one (161). Each branch air passage one (161) corresponds to a cylinder two (5), and each branch air passage one (161) is connected to a cylinder two (5). Each branch air passage one (161) is equipped with a valve (162). The telescopic rod two (501) of the cylinder two (5) is pushed upward by air pressure.
7. The elderly perception testing system according to claim 6, characterized in that, The main air passage 2 (16) is connected to the branch air passage 2 (163), and the branch air passage 2 (163) is equipped with the vent valve 1 (164).
8. The elderly perception testing system according to claim 6, characterized in that, The third end (143) of the three-way valve (14) is connected to the main air passage three (17), the main air passage is connected to the cylinder one (3), the telescopic rod one (301) of the cylinder one (3) is pushed upward by air pressure; the main air passage three (17) is connected to the branch air passage three (171), and the branch air passage three (171) is equipped with the vent valve two (172).
9. A method for testing elderly perception, characterized in that, The test was conducted using the elderly perception testing system as described in any one of claims 1-8.
Citation Information
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