A method for testing the anti-fatigue performance of an electric sofa support structure

Abstract

The invention discloses a method for detecting the anti-fatigue performance of an electric sofa support structure, comprising preparing ten groups of new electric sofas, adding a same initial load to the horizontal seat surfaces of electric sofas A and electric sofas B respectively, and cyclically applying the initial load for 25,000 times at a frequency of 20 times / minute; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for 25,000 times, and the load is increased in sequence. The invention accurately judges the influence of the single support and mutual interaction of the seat surface, backrest surface and side armrest surface of the electric sofa on the anti-fatigue performance of the support structure. The quality and durability of the electric sofa can be better evaluated through the detection method, and it is used to evaluate whether the product can meet the expected design requirements. The test method is helpful to ensure that the sofa maintains a good appearance and performance during its service life, and is convenient for manufacturers to carry out product transformation based on the advantages and disadvantages of the anti-fatigue performance of the sofa support structure, which is conducive to product improvement and research and development, and improves product quality and user experience.

Description

Technical Field

[0001] The invention belongs to the technical field of anti-fatigue performance of an electric sofa support structure, and in particular relates to a method for detecting the anti-fatigue performance of an electric sofa support structure. Background Art

[0002] The fatigue resistance test of the electric sofa support structure is a test used to evaluate the durability and performance of the sofa during long-term use. It is designed to simulate various situations that the sofa may experience in real life to ensure that it meets quality standards and can meet user needs.

[0003] In the prior art, the testing method for the anti-fatigue performance of the electric sofa support structure is usually a unilateral pressure measurement, which cannot accurately determine the influence of the single support of the seat, backrest and side armrest of the electric sofa and the interaction between them on the anti-fatigue performance of the support structure. It is not convenient for manufacturers to carry out product modification based on the advantages and disadvantages of the anti-fatigue performance of the sofa support structure, and is not conducive to product improvement and research and development.

[0004] Therefore, it is necessary to invent a method for detecting the anti-fatigue performance of the supporting structure of an electric sofa to solve the above problems, which can accurately judge the influence of the single supporting properties of the seat, backrest and side armrest surfaces of the electric sofa and their mutual interaction on the anti-fatigue performance of the supporting structure. Summary of the invention

[0005] In view of the above problems, the present invention provides a method for detecting the anti-fatigue performance of an electric sofa support structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for detecting the anti-fatigue performance of an electric sofa support structure, including a method for detecting the anti-fatigue performance of an electric sofa support structure, the method is as follows: Step 1: prepare ten sets of new electric sofas, numbered A, B, C, D, E, F, G, H, I, and J, and apply the same starting load to the horizontal seat surfaces of electric sofas A and B respectively. The starting load is cycled at a frequency of 20 times / min for 25,000 times; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased in sequence; Step 2: Add the same initial load to the backrests of the electric sofas A, B, C and D respectively, and apply the initial load 25,000 times at a frequency of 20 times / min; after the cycle, increase the load by a certain amount, and then cycle 25,000 times, and increase the load in sequence; Step 3: Determine whether the fatigue resistance of the supporting structure of the backrest of the electric sofa is related to the damage of the seat surface of the electric sofa by the force load and the number of times the backrest of the electric sofa is subjected to force; Step 4, add the same starting load to the side armrests of the electric sofas A and B, the electric sofas C and D, the electric sofas E and F, respectively, and apply the starting load 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 5: Determine whether the fatigue resistance of the supporting structure of the side armrest of the electric sofa is related to the damage of the seat surface of the electric sofa and the damage of the seat surface and backrest of the electric sofa through the load and the number of times the side armrest of the electric sofa is subjected to force; Step 6, add the same initial load to the seat surfaces of electric sofas C and D, electric sofas E and F, electric sofas G and H, respectively, and apply the initial load 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 7: Determine whether the fatigue resistance of the supporting structure of the electric sofa seat surface is related to the damage of the side armrest surface of the electric sofa, and the damage of the side armrest surface and the backrest surface of the electric sofa through the load and the number of times the electric sofa seat surface is subjected to force; Step 8, a corresponding starting load is applied to the seat surface, backrest surface and side armrest surface of the electric sofa I and the electric sofa J at the same time, and the starting load is cycled for 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 9: By comparing the data of electric sofa I and electric sofa J, the comprehensive anti-fatigue performance of the electric sofa support structure is determined.

[0007] Preferably, the electric sofa performance test is carried out on a specially designed cylinder force support system, and the cylinder is driven by a compressed air machine to apply force to the sofa surface under test at a cycle frequency of 20 times / minute.

[0008] Preferably, the number of boost cycles is recorded by a programmable logic controller and a resettable electronic counting system.

[0009] Preferably, in step one, step two, step four, step six and step eight, when the load reaches the maximum load-bearing load of the electric sofa seat, the load is stopped from being increased and the force is continuously applied until the frame or components of the electric sofa are destroyed and the test ends.

[0010] Preferably, in step 1, step 2, step 4, step 6 and step 8, when the sofa frame or component is damaged, the limit switch of the starting load is activated and the test is stopped.

[0011] Preferably, the seat surface, backrest surface and side armrest surface of the electric sofa I and the electric sofa J are all pressurized to simulate the user's actual sitting, lying, getting up, pressing and other operations, and repeatedly apply pressure and stress to the sofa to test the durability and stability of the sofa after long-term use.

[0012] Technical effects and advantages of the present invention: 1. The present invention can better evaluate the quality and durability of the electric sofa by accurately judging the influence of the single support of the seat surface, backrest surface and side armrest surface of the electric sofa and the interaction between them on the anti-fatigue performance of the supporting structure. It is used to evaluate whether the product can meet the expected design requirements. The test method helps to ensure that the sofa maintains a good appearance and performance during its service life, and is convenient for manufacturers to carry out product modification based on the advantages and disadvantages of the anti-fatigue performance of the sofa supporting structure, which is conducive to product improvement and research and development, and improves product quality and user experience.

[0013] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and claims. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] The present invention provides a method for detecting the anti-fatigue performance of an electric sofa support structure, including a method for detecting the anti-fatigue performance of an electric sofa support structure, and the method is as follows: Step 1: prepare ten sets of new electric sofas, numbered A, B, C, D, E, F, G, H, I, and J, and apply the same starting load to the horizontal seat surfaces of electric sofas A and B respectively. The starting load is cycled at a frequency of 20 times / min for 25,000 times; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased in sequence; Step 2: When the load reaches the maximum load-bearing capacity of the electric sofa seat, stop increasing the load and continue to apply force until the frame or components of the electric sofa are damaged. Step 3, add the same initial load to the backrests of the electric sofa A, electric sofa B, electric sofa C and electric sofa D respectively, and apply the initial load 25,000 times at a frequency of 20 times / min; after the cycle, increase the load by a certain amount, and then cycle 25,000 times, and increase the load in sequence; Step 4: When the load reaches the maximum load-bearing capacity of the backrest of the electric sofa, stop increasing the load and continue to apply force until the frame or components of the electric sofa are damaged. Step 5: Determine whether the fatigue resistance of the supporting structure of the backrest of the electric sofa is related to the damage of the seat surface of the electric sofa by the force load and the number of times the backrest of the electric sofa is subjected to force; Step 6: Add the same starting load to the side armrests of the electric sofas A and B, the electric sofas C and D, the electric sofas E and F, respectively. The starting load is cycled for 25,000 times at a frequency of 20 times / min. After the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially. Step 7. When the load reaches the maximum load-bearing load of the side armrest of the electric sofa, stop increasing the load and continue to apply force until the frame or components of the electric sofa are destroyed and the test ends; Step 8: Determine whether the fatigue resistance of the supporting structure of the side armrest of the electric sofa is related to the damage of the seat surface of the electric sofa and the damage of the seat surface and backrest of the electric sofa through the load and the number of times the side armrest of the electric sofa is subjected to force; Step 9, add the same initial load to the seat surfaces of electric sofas C and D, electric sofas E and F, electric sofas G and H, respectively, and apply the initial load 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 10: When the load reaches the maximum load-bearing capacity of the electric sofa seat, stop increasing the load and continue to apply force until the frame or components of the electric sofa are damaged. Step 11: Determine whether the fatigue resistance of the supporting structure of the electric sofa seat surface is related to the damage of the side armrest surface of the electric sofa, and the damage of the side armrest surface and the backrest surface of the electric sofa through the load and the number of times the electric sofa seat surface is subjected to force; Step 12, a corresponding starting load is applied to the seat surface, backrest surface and side armrest surface of the electric sofa I and the electric sofa J at the same time, and the starting load is cycled for 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 13: By comparing the data of the electric sofa I and the electric sofa J, the comprehensive anti-fatigue performance of the electric sofa support structure is determined; By accurately judging the single support of the seat, backrest and side armrest of the electric sofa and the impact of their mutual support on the anti-fatigue performance of the supporting structure, the detection method can better evaluate the quality and durability of the electric sofa, and be used to evaluate whether the product can meet the expected design requirements. This test method helps to ensure that the sofa maintains a good appearance and performance during its service life, and is convenient for manufacturers to carry out product modifications based on the advantages and disadvantages of the anti-fatigue performance of the sofa support structure, which is conducive to product improvement and research and development, and improves product quality and user experience.

[0016] As a specific implementation of the present invention, the performance test of the electric sofa is carried out on a specially designed cylinder force support system. The cylinder is driven by a compressed air machine to apply force to the sofa surface under test at a cycle frequency of 20 times / minute.

[0017] As a specific embodiment of the present invention, the number of boost cycles is recorded by a programmable logic controller and a resettable electronic counting system.

[0018] When the load reaches the maximum load-bearing capacity of the electric sofa seat, stop increasing the load and continue to apply force until the frame or components of the electric sofa are destroyed and the test ends.

[0019] When the sofa frame or components fail, the limit switch of the initial load is activated and the test is stopped.

[0020] As a specific embodiment of the present invention, pressure is applied to the seat surface, backrest surface and side armrest surface of the electric sofa I and the electric sofa J to simulate the user's actual sitting, lying, getting up, pressing and other operations, and repeatedly apply pressure and stress to the sofa to test the durability and stability of the sofa after long-term use.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for testing the anti-fatigue performance of an electric sofa support structure, characterized in that: The method is as follows: Step 1: prepare ten sets of new electric sofas, numbered A, B, C, D, E, F, G, H, I, and J, and apply the same starting load to the horizontal seat surfaces of electric sofas A and B respectively. The starting load is cycled at a frequency of 20 times / min for 25,000 times; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased in sequence; Step 2: Add the same initial load to the backrests of the electric sofas A, B, C and D respectively, and apply the initial load 25,000 times at a frequency of 20 times / min; after the cycle, increase the load by a certain amount, and then cycle 25,000 times, and increase the load in sequence; Step 3: Determine whether the fatigue resistance of the supporting structure of the backrest of the electric sofa is related to the damage of the seat surface of the electric sofa by the force load and the number of times the backrest of the electric sofa is subjected to force; Step 4, add the same starting load to the side armrests of the electric sofas A and B, the electric sofas C and D, the electric sofas E and F, respectively, and apply the starting load 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 5: Determine whether the fatigue resistance of the supporting structure of the side armrest of the electric sofa is related to the damage of the seat surface of the electric sofa and the damage of the seat surface and backrest of the electric sofa through the load and the number of times the side armrest of the electric sofa is subjected to force; Step 6, add the same initial load to the seat surfaces of electric sofas C and D, electric sofas E and F, electric sofas G and H, respectively, and apply the initial load 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 7: Determine whether the fatigue resistance of the supporting structure of the electric sofa seat surface is related to the damage of the side armrest surface of the electric sofa, and the damage of the side armrest surface and the backrest surface of the electric sofa through the load and the number of times the electric sofa seat surface is subjected to force; Step 8, a corresponding starting load is applied to the seat surface, backrest surface and side armrest surface of the electric sofa I and the electric sofa J at the same time, and the starting load is cycled for 25,000 times at a frequency of 20 times / min; after the cycle is completed, the load is increased by a certain amount, and the cycle is repeated for another 25,000 times, and the load is increased sequentially; Step 9: By comparing the data of electric sofa I and electric sofa J, the comprehensive anti-fatigue performance of the electric sofa support structure is determined.

2. The method for detecting the anti-fatigue performance of the electric sofa support structure according to claim 1, characterized in that: The electric sofa performance test is carried out on a specially designed cylinder force support system. The cylinder, driven by a compressed air machine, applies force to the sofa surface under test at a cycle frequency of 20 times / minute.

3. The method for detecting the anti-fatigue performance of the electric sofa support structure according to claim 1, characterized in that: The number of boost cycles is recorded by a programmable logic controller and a resettable electronic counting system.

4. The method for detecting the anti-fatigue performance of the electric sofa support structure according to claim 1, characterized in that: In the steps 1, 2, 4, 6 and 8, when the load reaches the maximum load-bearing load of the electric sofa seat, the load is stopped from being increased and the force is continuously applied until the frame or components of the electric sofa are destroyed and the test ends.

5. The method for detecting the anti-fatigue performance of the electric sofa support structure according to claim 1, characterized in that: In the steps 1, 2, 4, 6 and 8, when the sofa frame or components are damaged, the limit switch of the initial load is activated and the test is stopped.

6. The method for detecting the anti-fatigue performance of the electric sofa support structure according to claim 1, characterized in that: The seat surface, backrest surface and side armrest surface of the electric sofa I and the electric sofa J are all pressurized to simulate the user's actual sitting, lying, standing up, pressing and other operations, and repeatedly apply pressure and stress to the sofa to test the durability and stability of the sofa after long-term use.