Design method of telescopic hidden wheelchair ramp

Abstract

The invention discloses a design method of a telescopic hidden wheelchair ramp, which comprises the following steps of: executing all steps by adopting a computer, and determining whether a rest platform needs to be arranged and the number of the rest platforms according to whether the stage number n of steps corresponding to a wheelchair ramp to be designed is less than or equal to 5 and less than or equal to 10; then the horizontal length and the total length of the wheelchair ramp to be designed and the length of each tower plate in each hidden folding pedal are calculated; according to the invention, the existing steps can be utilized to reconstruct and arrange the hidden telescopic pedals to build the ramp.

Description

Technical Field

[0001] The invention relates to the technical field of computer-aided design, and in particular to a design method for a telescopic hidden wheelchair ramp. Background Art

[0002] As the public's demand for barrier-free access continues to increase, it has become an inevitable trend to set up barrier-free ramps at steps in outdoor spaces to ensure that all citizens, including those with limited mobility, can enjoy urban spaces equally.

[0003] However, many outdoor spaces in cities are currently limited, and there are phenomena such as no space for barrier-free ramps or unreasonable installation. This situation not only restricts the freedom of travel of citizens with limited mobility, but also affects their opportunities to participate in social activities, thereby reducing their quality of life and social participation. If barrier-free ramps cannot be installed or are installed unreasonably, it will cause obstacles to the passage of citizens with limited mobility, which is not only an inconvenience for them personally, but also reflects the city's shortcomings in barrier-free construction.

[0004] Therefore, in order to redesign the construction method of the barrier-free ramp and meet the requirements of barrier-free specifications, how to use the existing steps to rebuild the ramp with hidden retractable pedals has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the present invention provides a design method for a retractable hidden wheelchair ramp, the purpose of which is to utilize existing steps to reconstruct a hidden retractable pedal to build a ramp.

[0006] To achieve the above-mentioned purpose, the present invention discloses a design method of a retractable hidden wheelchair ramp, which uses a computer to execute all steps; it is characterized by comprising the following steps:

[0007] Step 1: determine whether the number n of steps corresponding to the wheelchair ramp to be designed is less than or equal to 5;

[0008] If the number of steps n≤5, there is no need to set up a rest platform, and step A2 is executed;

[0009] If the number of steps n>5, it is necessary to set up the rest platform and execute step B2;

[0010] Step A2: Use the highest step as a storage box for hiding the folding pedal, and calculate the horizontal length L0 = H0 / α and the total length of the wheelchair ramp to be designed. and the length of each tower plate in the hidden folding pedal is l=L / n;

[0011] Wherein, H0 is the height of the wheelchair ramp and the corresponding step; α is the longitudinal slope of the wheelchair ramp to be designed;

[0012] Step B2, determining whether the number of stages n is less than or equal to 10;

[0013] If the number of steps n≤10, a rest platform needs to be set up, and step B3 is executed;

[0014] If the number of steps n>10, two rest platforms need to be set, and step C3 is executed;

[0015] Step B3: Use the highest step as the storage box for the hidden folding pedal in the first section, use the rest platform as the storage box for the hidden folding pedal in the second section, and calculate the horizontal length of the wheelchair ramp to be designed, L0 = n1(H0 / n) / α+L'+n2(H0 / n) / α.

[0016] Overall length

[0017] The length of each tower plate in the hidden folding pedal in the first paragraph

[0018]

[0019] and the length of each of the tower plates in the hidden folding pedal described in the second paragraph

[0020]

[0021] Wherein, n1 is the number of steps corresponding to the hidden folding pedal in the first section; n2 is the number of steps corresponding to the hidden folding pedal in the second section; L' is the length of the resting platform, l2≤L';

[0022] Step C3, use the highest step as the storage box of the hidden folding pedal of the first section, use the two sections of the rest platform as the storage box of the hidden folding pedal of the second section and the storage box of the hidden folding pedal of the third section respectively, and calculate the horizontal length L0 of the wheelchair ramp to be designed = n1(H0 / n) / α+L'1+n2(H0 / n) / α+L'2+n3(H0 / n) / α,

[0023]

[0024] and the length of each of the tower plates in the hidden folding pedal described in the first paragraph

[0025]

[0026] The length of each tower plate in the hidden folding pedal in the second paragraph

[0027]

[0028] and the length of each of the tower plates in the hidden folding pedal described in the third paragraph

[0029]

[0030] Among them, n1 is the number of steps corresponding to the hidden folding pedal described in the first section; n2 is the number of steps corresponding to the hidden folding pedal described in the second section; n3 is the number of steps corresponding to the hidden folding pedal described in the third section; L'1 is the length of the rest platform described in the first section, l2≤L'1; L'2 is the length of the rest platform described in the second section, l3≤L'2.

[0031] Preferably, the length of each rest platform is not less than 1500 mm, and both ends are raised and lowered by jacks.

[0032] Preferably, after any of the hidden folding pedals are unfolded, a jack is provided on the ground corresponding to the joint position of every two adjacent tower plates, and support is provided by the top rod raised by the corresponding jack.

[0033] Preferably, before executing step 1, Tian Zheng CAD software is used to draw the steps and the extended cross-section of the wheelchair ramp to be designed, and H0 and n are defined; the extension direction of the wheelchair ramp is considered to be free of obstacles.

[0034] Beneficial effects of the present invention:

[0035] The present invention can utilize existing steps to reconstruct and set hidden retractable pedals to build a ramp.

[0036] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The following is a flowchart showing an implementation of an embodiment of the present invention.

[0038] Figure 2 A schematic diagram showing a wheelchair ramp corresponding to five steps in an embodiment of the present invention is not unfolded.

[0039] Figure 3 A schematic diagram showing the unfolding of a wheelchair ramp corresponding to five steps in one embodiment of the present invention.

[0040] Figure 4 A schematic diagram showing a wheelchair ramp corresponding to 9 steps in an embodiment of the present invention is not unfolded.

[0041] Figure 5A schematic diagram showing the unfolding of a wheelchair ramp corresponding to 9 steps in one embodiment of the present invention. DETAILED DESCRIPTION

[0042] Example

[0043] like Figure 1 As shown, the design method of the retractable hidden wheelchair ramp uses a computer to execute all steps; it is characterized by comprising the following steps:

[0044] Step 1: determine whether the number n of steps corresponding to the wheelchair ramp to be designed is less than or equal to 5;

[0045] If the number of steps n≤5, there is no need to set up a rest platform, and step A2 is executed;

[0046] If the number of steps n>5, it is necessary to set up the rest platform and execute step B2;

[0047] Step A2: Use the highest step as a storage box for hiding the folding pedal, and calculate the horizontal length L0 = H0 / α and the total length of the wheelchair ramp to be designed. and the length of each tower plate in the hidden folding pedal is l=L / n;

[0048] Wherein, H0 is the height of the wheelchair ramp and the corresponding step;

[0049] Step B2, determining whether the number of stages n is less than or equal to 10;

[0050] If the number of steps n≤10, a rest platform needs to be set up, and step B3 is executed;

[0051] If the number of steps n>10, two rest platforms need to be set, and step C3 is executed;

[0052] Step B3: Use the highest step as the storage box for the hidden folding pedal in the first section, use the rest platform as the storage box for the hidden folding pedal in the second section, and calculate the horizontal length of the wheelchair ramp to be designed, L0 = n1(H0 / n) / α+L'+n2(H0 / n) / α.

[0053]

[0054] The length of each tower plate in the hidden folding pedal in the first paragraph

[0055]

[0056] and the length of each of the tower plates in the hidden folding pedal described in the second paragraph

[0057]

[0058] Wherein, n1 is the number of steps corresponding to the hidden folding pedal in the first section; n2 is the number of steps corresponding to the hidden folding pedal in the second section; L' is the length of the resting platform, l2≤L';

[0059] Step C3, use the highest step as the storage box of the hidden folding pedal of the first section, use the two sections of the rest platform as the storage box of the hidden folding pedal of the second section and the storage box of the hidden folding pedal of the third section respectively, and calculate the horizontal length L0 of the wheelchair ramp to be designed = n1(H0 / n) / α+L'1+n2(H0 / n) / α+L'2+n3(H0 / n) / α,

[0060]

[0062] and the length of each of the tower plates in the hidden folding pedal described in the first paragraph

[0063]

[0064] The length of each tower plate in the hidden folding pedal in the second paragraph

[0065]

[0066] and the length of each of the tower plates in the hidden folding pedal described in the third paragraph

[0067]

[0068] Among them, n1 is the number of steps corresponding to the hidden folding pedal described in the first section; n2 is the number of steps corresponding to the hidden folding pedal described in the second section; n3 is the number of steps corresponding to the hidden folding pedal described in the third section; L'1 is the length of the rest platform described in the first section, l2≤L'1; L'2 is the length of the rest platform described in the second section, l3≤L'2.

[0069] In some embodiments, the length of each rest platform is not less than 1500 mm, and both ends are raised and lowered by jacks.

[0070] In some embodiments, after any hidden folding pedal is unfolded, a jack is provided on the ground corresponding to the joint position of every two adjacent tower plates, and the ground is supported by the top rod raised by the corresponding jack.

[0071] In some embodiments, before executing step 1, Tian Zheng CAD software is used to draw the extended cross-section of the steps and the wheelchair ramp to be designed, and H0 and n are defined; the extension direction of the wheelchair ramp is considered to be free of obstacles.

[0072] In actual application, in accordance with the general specifications for barrier-free construction and municipal engineering, when the ramp lifting height H0>750mm, a rest platform must be set up, and the longitudinal slope of the designed wheelchair ramp α≤1:12; the lifting height of each section of the ramp should not be greater than 750mm; the clear width of the starting point, end point and rest platform of the wheelchair ramp should not be less than the clear width of the ramp.

[0073] like Figure 2 and Figure 3 As shown, assuming that the ramp lifting height H0≤750mm, n≤5, there is no need to set up a rest platform.

[0074] Then step A2 is to use the height difference of the first step to set up a hidden folding pedal storage box, arrange support points on the original path, and determine the length of each pedal section by calculation;

[0075] The horizontal length of the ramp is L0 = H0 / α;

[0076]

[0077] The length of the ramp pedal l = L / n (the larger n is, the more support the hidden pedal has; the larger l is, the more space the hidden pedal needs).

[0078] like Figure 4 and Figure 5 As shown, assuming that the ramp lifting height H0>750mm, if 5<n≤10, a rest platform needs to be set up.

[0079] Step B3: Set up two sections of ramps and rest platforms. Use the height difference of the first step to set up the first section of hidden folding pedal storage box; determine the position of the rest platform by calculation, set up the second section of folding pedal storage box below it, and determine the length of each section of pedal by calculation;

[0080] The horizontal length of the ramp L0 = n1(H0 / n) / α+L'+n2(H0 / n) / α;

[0081]

[0082] The length of the rest platform is L'=1500mm, (l2 is limited by the length L' of the rest platform and needs to be folded and hidden under the rest platform).

[0083] If 10<n≤15, two rest platforms need to be set, and then execute step C3;

[0084] The horizontal length of the ramp L0 = n1(H0 / n) / α+L'1+n2(H0 / n) / α+L'2+n3(H0 / n) / α;

[0085]

[0086] The length of the first rest platform is L'1 = 1500 mm, The length of the second rest platform L'2 = 1500 mm, (l2 is limited by the length L'1 of the first resting platform and needs to be folded and hidden under the first resting platform; l3 is limited by the length L'2 of the second resting platform and needs to be folded and hidden under the second resting platform).

[0087] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. The design method of the retractable hidden wheelchair ramp uses a computer to execute all steps; it is characterized by: The steps include: Step 1: determine whether the number n of steps corresponding to the wheelchair ramp to be designed is less than or equal to 5; If the number of steps n≤5, there is no need to set up a rest platform, and step A2 is executed; If the number of steps n>5, it is necessary to set up the rest platform and execute step B2; Step A2: Use the highest step as a storage box for the hidden folding pedal, calculate the horizontal length and total length of the wheelchair ramp to be designed, and the length of each tower plate in the hidden folding pedal; Wherein, H0 is the height of the wheelchair ramp and the corresponding step; Step B2, determining whether the number of stages n is less than or equal to 10; If the number of steps n≤10, a rest platform needs to be set up, and step B3 is executed; If the number of steps n>10, two rest platforms need to be set, and step C3 is executed; Step B3: Use the highest step as the storage box for the hidden folding pedal in the first section, use the rest platform as the storage box for the hidden folding pedal in the second section, and calculate the horizontal length of the wheelchair ramp to be designed, L0 = n1(H0 / n) / α+L'+n2(H0 / n) / α. The length of each tower plate in the hidden folding pedal in the first paragraph and the length of each of the tower plates in the hidden folding pedal described in the second paragraph Wherein, n1 is the number of steps corresponding to the hidden folding pedal in the first section; n2 is the number of steps corresponding to the hidden folding pedal in the second section; L' is the length of the resting platform, l2≤L'; Step C3, use the highest step as the storage box of the hidden folding pedal of the first section, use the two sections of the rest platform as the storage box of the hidden folding pedal of the second section and the storage box of the hidden folding pedal of the third section respectively, and calculate the horizontal length L0 of the wheelchair ramp to be designed = n1(H0 / n) / α+L'1+n2(H0 / n) / α+L'2+n3(H0 / n) / α, and the length of each of the tower plates in the hidden folding pedal described in the first paragraph The length of each tower plate in the hidden folding pedal in the second paragraph and the length of each of the tower plates in the hidden folding pedal described in the third paragraph Among them, n1 is the number of steps corresponding to the hidden folding pedal described in the first section; n2 is the number of steps corresponding to the hidden folding pedal described in the second section; n3 is the number of steps corresponding to the hidden folding pedal described in the third section; L'1 is the length of the rest platform described in the first section, l2≤L'1; L'2 is the length of the rest platform described in the second section, l3≤L'2.

2. The design method of the retractable hidden wheelchair ramp according to claim 1 is characterized in that: The length of each rest platform is not less than 1500 mm, and both ends are raised and lowered by jacks.

3. The design method of the retractable hidden wheelchair ramp according to claim 1 is characterized in that: After any of the hidden folding pedals is unfolded, a jack is provided on the ground corresponding to the joint position of every two adjacent tower plates, and the ground is supported by the top rod raised by the corresponding jack.

4. The design method of the retractable hidden wheelchair ramp according to claim 1 is characterized in that: Before executing step 1, use Tian Zheng CAD software to draw the steps and the extended cross-section of the wheelchair ramp to be designed, and define H0 and n; the extension direction of the wheelchair ramp is considered to be free of obstacles.

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