A test device

Abstract

The utility model provides a kind of testing device, including test step, and test step includes at least two levels pedal unit;Each pedal unit includes pedal, vertical support, and the tread of pedal is extended along horizontal direction, and is connected on vertical support;Between adjacent pedal unit, lower level pedal unit is provided with first sliding part, and higher level pedal unit is provided with second sliding part, and first sliding part and second sliding part are slidably matched along the width direction of tread, and drive lower level pedal unit relative higher level pedal unit and slide along the width direction of tread between first position and second position.It can be seen that, between adjacent pedal unit, it can be slid relative along the width direction of tread, to adjust the horizontal distance between adjacent pedal unit or adjacent pedal, and thus, the horizontal distance between adjacent pedal can be flexibly adjusted according to test requirement.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a testing device. Background Technology

[0002] In the development of knee exoskeleton products or humanoid robots, it is necessary to conduct walking tests on stairs for these products.

[0003] Normally, the horizontal distance between adjacent treads on a test step is fixed. However, with the continuous development and diversification of knee exoskeleton products and humanoid robots, it is necessary to equip each knee exoskeleton product and humanoid robot with a dedicated walking test step for each application-specific testing purpose.

[0004] Clearly, a test step with a fixed horizontal spacing between adjacent treads cannot meet diverse testing needs. Utility Model Content

[0005] To address the issue of limited testing scenarios caused by the horizontal spacing between adjacent treads on current test steps, this application provides a test device with adjustable horizontal spacing between adjacent treads.

[0006] The testing device provided by this utility model includes a testing step, which includes at least two levels of pedal units. Each pedal unit includes a pedal and a vertical support. The tread surface of the pedal extends horizontally and is connected to the vertical support. Between adjacent pedal units, the lower-level pedal unit is provided with a first sliding part, and the higher-level pedal unit is provided with a second sliding part. The first sliding part and the second sliding part are slidably engaged along the width direction of the tread surface, causing the lower-level pedal unit to slide between a first position and a second position relative to the higher-level pedal unit along the width direction of the tread surface.

[0007] Optionally, in the above-mentioned testing device, each of the pedal units further includes a vertical lifting mechanism. The vertical lifting mechanism includes a third sliding part disposed on the pedal and a fourth sliding part disposed on the vertical support. The third sliding part and the fourth sliding part are slidably engaged along the vertical direction of the vertical support, thereby driving the pedal to slide between the third position and the fourth position along the vertical direction.

[0008] The pedal includes a first side and a second side, which are arranged opposite to each other and located on both sides of the tread surface. Both the first side and the second side are disposed on the third sliding part.

[0009] Optionally, in the above-mentioned testing device, the third sliding part includes a lifting slider, and the fourth sliding part includes a lifting guide rail; the lifting guide rail extends vertically and is disposed on the surface of the vertical support facing the pedal, and the lifting slider is slidably connected to the lifting guide rail;

[0010] The pedal includes a first side and a second side, which are arranged opposite to each other and located on both sides of the tread surface. Both the first side and the second side are disposed on the lifting slider.

[0011] Optionally, in the above-described testing apparatus, relative to the first position, the lower-level pedal unit is horizontally further away from the higher-level pedal unit in the second position; in the first position, the lower-level pedal unit is relatively close to the higher-level pedal unit, and the lower-level pedal is at least partially housed in a receiving space directly below the higher-level pedal.

[0012] Optionally, in the above-described testing device, each of the pedal units further includes a width bracket, which is located below the pedal and extends along the width direction of the tread surface. The first sliding part and / or the second sliding part in each of the pedal units are disposed on the width bracket. The width bracket is connected to the bottom end of the vertical bracket, and the width bracket includes a bracket support part, which is disposed toward the vertical bracket.

[0013] Optionally, in the above-mentioned testing apparatus, at least two stages of the pedal unit include a primary pedal unit and a final pedal unit;

[0014] In the primary pedal unit, the width bracket is provided with the first sliding part on the surface perpendicular to the tread surface, and the two first sliding parts are arranged in opposite directions;

[0015] In the final pedal unit, the width bracket is provided with a second sliding part on a surface perpendicular to the tread surface, and the two second sliding parts are arranged facing each other.

[0016] Optionally, in the above-described testing apparatus, the at least two-stage pedal units further include at least one intermediate pedal unit, which is disposed between the primary pedal unit and the final pedal unit; in the intermediate pedal unit, each of the width supports includes a first sliding portion and a second sliding portion facing opposite directions.

[0017] Optionally, in the above-described testing device, the testing step further includes a vertical locking mechanism, which has a locked state and an unlocked state; in the locked state, the pedal is fixedly disposed relative to the vertical support; in the unlocked state, the pedal is fixedly disposed relative to the vertical support and can be raised, lowered, and slid.

[0018] Optionally, in the above-mentioned testing device, the center of each tread surface is recessed to form a receiving cavity; the testing device includes a force measuring element, which is housed in the receiving cavity, and the upper surface of the force measuring element is flush with the tread surface.

[0019] Optionally, in the above-described testing device, each of the pedal units further includes guardrails, which are disposed on both sides of the tread length direction; the guardrails are provided with clearance notches, and when the lower-level pedal unit is in the first position, the adjacent higher-level pedal can be accommodated in the clearance notches.

[0020] Optionally, in the first position, the lower-level vertical support of the aforementioned test apparatus is completely outside the receiving space directly below the higher-level pedal.

[0021] In the testing device of this application, adjacent pedal units can slide relative to each other along the width direction of the tread surface to adjust the horizontal distance between adjacent pedal units or adjacent pedals. Thus, the horizontal distance between adjacent pedals can be flexibly adjusted according to testing requirements. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate the present invention and constitute a component of it, are used to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This utility model provides a schematic diagram showing that all pedal units in the test step are in the first position in an embodiment of the present invention.

[0024] Figure 2 This utility model provides a schematic diagram showing that all pedal units in the test step are in the second position in an embodiment of the present invention.

[0025] Figure 3 for Figure 1 or Figure 2 A schematic diagram of the structure along the X direction;

[0026] Figure 4 for Figure 1 or Figure 2 Exploded view along the X direction;

[0027] Figure 5 for Figure 1 A schematic diagram of the structure along the Z-direction;

[0028] Figure 6 for Figure 2 A schematic diagram of the structure along the Z-direction;

[0029] Figure 7 for Figure 5 or Figure 6 Exploded view along the X direction;

[0030] Figure 8 This is the test step under another perspective provided by the embodiment of the present utility model.

[0031] Reference numerals:

[0032] 100 - Test step;

[0033] 10 - Pedal unit; 11 - Pedal; 111 - Tread surface; 112 - First side; 113 - Second side; 114 - Baffle; 115 - Wire passing hole; 116 - Annular support part; 12 - Vertical bracket; 121 - Inner side; 122 - Outer side; 13 - Accommodation space; 14 - Width bracket; 141 - First sliding part; 142 - Second sliding part; 143 - Accommodation part; 144 - Bracket support part; 15 - Length bracket; 16 - Force measuring piece; 17 - Guardrail; 171 - Avoidance notch; 18 - Vertical lifting mechanism; 181 - Lifting guide rail; 182 - Lifting slider; 183 - Lifting screw rod; 184 - Motor; 19 - Caster wheel;

[0034] 101 - Primary pedal unit; 102 - First intermediate pedal unit; 103 - Second intermediate pedal unit; 104 - Final pedal unit; Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the specific embodiments and corresponding drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] As Figure 1 shown, the embodiment of the present utility model provides a test step 100, and this test step 100 may belong to a part or all of the test device.

[0037] Refer Figure 1 、 Figure 2 、 Figure 3 and Figure 4The test step 100 may include at least two levels of pedal units 10. Each pedal unit 10 includes a pedal 11 and a vertical support 12. The pedal 11 is connected to the vertical support 12, and the tread surface 111 of the pedal 11 extends horizontally. Adjacent pedal units 10 are slidably connected along the width direction of the tread surface 111. The lower-level pedal unit 10 can slide between a first position and a second position relative to the higher-level pedal unit 10. Specifically, between adjacent pedal units 10, the lower-level pedal unit 10 is provided with a first sliding portion 141, and the higher-level pedal unit 10 is provided with a second sliding portion 142. The first sliding portion 141 and the second sliding portion 142 are slidably connected along the width direction of the tread surface 111, enabling the lower-level pedal unit 10 to slide between the first position and the higher-level pedal unit 10 along the width direction of the tread surface 111. As can be seen, adjacent pedal units 10 can slide relative to each other along the width direction of the tread surface 111 to adjust the horizontal distance between adjacent pedal units 10 or adjacent pedals 11. Thus, the horizontal distance between adjacent pedals 10 can be flexibly adjusted according to testing requirements. Of course, at least two levels of pedal units 10 may include a lower-level pedal unit 10 and a higher-level pedal unit 10.

[0038] In one embodiment, each pedal unit 10 may further include a vertical lifting mechanism 18, which is connected between the pedal 11 and the vertical support 12. This mechanism allows the pedal 11 to be slidably connected to the vertical support 12 in the vertical direction between a third position and a fourth position. Thus, each pedal 11 can slide up and down along the vertical direction of each vertical support 12. In this embodiment, in each pedal unit 10, the pedal 11 can be raised and lowered relative to the vertical support 12, thereby adjusting the vertical spacing between the pedals 10. Furthermore, adjacent pedal units 10 can be positioned along the width direction of the tread surface 111 (corresponding to...). Figure 1 The X-axis can be slid to adjust the horizontal distance between adjacent pedal units 10 or adjacent pedals 11, thereby enabling flexible adjustment of the horizontal and vertical distances between adjacent pedals 11 according to testing requirements.

[0039] The vertical lifting mechanism 18 may include a third sliding part and a fourth sliding part. The third sliding part is disposed on the pedal 11, and the fourth sliding part is disposed on the vertical support 12. The third sliding part and the fourth sliding part are slidably engaged along the vertical direction of the vertical support to drive the pedal 11 to slide between the third position and the fourth position in the vertical direction (lifting and sliding). The third sliding part may include a lifting slider, and the fourth sliding part may include a lifting guide rail.

[0040] There is a receiving space 13 directly below (or vertically below) each pedal 11, wherein the receiving space 13 may be formed by each pedal and the corresponding vertical support 12.

[0041] In the first position, the lower-level pedal unit 10 is relatively close to the higher-level pedal unit 10 in the width direction of the tread surface 111, and the lower-level pedal 11 is at least partially housed in the receiving space 13 directly below the higher-level pedal 11. In the second position, the lower-level pedal unit 10 is farther away from the higher-level pedal unit 10 in the width direction of the tread surface 111 relative to the first position. Thus, without using the test step 100, the horizontal distance between adjacent pedals 11 can be reduced by sliding the lower-level pedal 11 to the first position, thereby reducing the external volume of the test step 100 for easy storage and transportation.

[0042] In this embodiment, the width and length directions of the tread 111 can both be horizontal, that is, the tread 111 is horizontally set. In this case, the tread 111 is perpendicular to the vertical direction (or the vertical support 12). Of course, in some embodiments, the tread 111 may not be absolutely horizontal, but slightly inclined. In this case, the tread 111 is not absolutely perpendicular to the vertical direction (or the vertical support 12), but slightly inclined.

[0043] Between adjacent pedal units 10, the lower-level pedal unit 10 is able to slide along the width direction of the tread surface 111 between a first position and a second position, wherein the sliding is a reciprocating sliding between the first position and the second position.

[0044] like Figure 1 A schematic diagram showing the structure in which all pedal units 10 are in the first position; Figure 2 This is a schematic diagram showing the structure where each pedal unit 10 is in the second position.

[0045] As can be seen, in this embodiment of the application, the lower-level pedal 11 can be slidably accommodated in the receiving space 13 of the higher-level pedal unit 10 at least partially along the width direction of the tread surface 111. This reduces the horizontal distance between adjacent pedals 11, thereby reducing the external dimensions of the test step 100 in the width direction of the pedal 11, making the test step 100 easier to store and transport.

[0046] In the embodiments of this application, "lower level" and "higher level" are relative terms. In a lower level pedal unit 10, the tread surface 111 is closer to the plane supporting the test step 100 (hereinafter referred to as the base surface), while in a higher level pedal unit 10, the tread surface 111 is farther from the base surface. Accordingly, the primary pedal unit 101 mentioned below refers to the unit whose tread surface 111 is closest to the base surface, the final pedal unit 104 refers to the unit whose tread surface 111 is farthest from the base surface, and the intermediate pedal unit is the unit disposed between the primary pedal unit 101 and the final pedal unit 104.

[0047] In the embodiments of the present application, in adjacent pedal units, the lower-level pedal unit (or tread, vertical bracket, etc.) can be referred to as the first-level pedal unit (or tread, vertical bracket, etc.), and the higher-level pedal unit can be referred to as the second-level pedal unit; if there are even higher-level pedal units, they can be successively referred to as the third-level pedal unit, the fourth-level pedal unit, etc., and so on; or if there are lower-level pedal units, they can also be numbered successively. For example, in the embodiments mentioned below, the primary pedal unit, the first intermediate pedal unit, the second intermediate pedal unit, and the ultimate pedal unit can be respectively referred to as the first-level pedal unit, the second-level pedal unit, the third-level pedal unit, and the fourth-level pedal unit.

[0048] In the embodiments of the present application, the adjacent lower-level pedal unit and the higher-level tread unit refer to any two adjacent pedal units in the test step 100. In the embodiments of the present application, adjacent can be directly adjacent; of course, in some embodiments, adjacent can also be indirectly adjacent. In addition, the base surface can be understood as a horizontal plane.

[0049] The horizontal direction refers to the extension direction of the tread 111, and the vertical direction is perpendicular to this horizontal direction. Both the width direction and the length direction of the tread 111 are perpendicular to the vertical direction. The width direction of the tread 111 refers to the horizontal extension direction from the lower-level (such as primary) tread 111 to the higher-level (such as ultimate) tread 111, and the length direction of the tread 111 is perpendicular to the width direction of the tread 111. Of course, in the embodiments of the present application, vertical, perpendicular, horizontal, or parallel, etc. can be absolutely vertical, perpendicular, horizontal, or parallel, or non-absolute, such as approximately vertical, perpendicular, horizontal, or parallel.

[0050] See Figure 1 、 Figure 3 、 Figure 4 and Figure 5 It can be seen that in a three-axis coordinate system, the X-axis is parallel to the width direction of the tread 111, the Y-axis is parallel to the length direction of the tread 111, and the Z-axis is parallel to the vertical direction.

[0051] Between adjacent pedal units 10, when the lower-level pedal 11 is in the first position, it can be in a storage state; in some cases, this storage state can also be a working state in which the test step 100 can be normally used for testing work; at this time, at least part of the vertical projection surface of the higher-level pedal 11 on the lower-level tread 111 falls on the lower-level tread 111.

[0052] In one embodiment, with the lower-level pedal unit 10 in the second position, the entire lower-level pedal 11 can slide along the width direction of the tread surface 111 to the outside of the receiving space 13 located directly below the adjacent higher-level pedal 11. This unfolded state can be a working state for testing purposes; at this time, the vertical projection plane of the higher-level pedal 11 onto the lower-level tread surface 111 falls outside the lower-level tread surface 111. Of course, as a variation, the lower-level pedal 11 can still be partially housed in the receiving space directly below the higher-level pedal 11 in the second position, but the receiving depth or degree of housing should be smaller in the second position compared to the first position.

[0053] In each pedal unit 10, the number of vertical supports 12 can be two (or a pair), or any other number, preferably sufficient to support the pedal 11 smoothly. The vertical supports 12 can be in the form of legs; if they are legs, there can be four, meaning two legs are equivalent to one vertical support 12. The number of legs can also be more or less than four. The four legs can be positioned at the four corners of the square pedal 11.

[0054] When there are two vertical supports 12, they can be positioned on both sides of the pedal 11 along its length. Each pair of vertical supports 12 includes two opposing inner sides 121 and two opposite outer sides 122, with the inner sides 121 facing the pedal 11. Between adjacent pedal units 10, the horizontal distance between the two lower-level outer sides 122 can be smaller than the horizontal distance between the pair of higher-level inner sides 121, and the vertical dimension of the lower-level vertical support 12 can be smaller than the vertical dimension of the higher-level vertical support 12. Thus, the height and length dimensions of the two vertical supports 12 gradually increase from the lower to the higher level, resulting in a neat appearance for the test step 100. Furthermore, the lower-level vertical support 12 can be at least partially housed within the higher-level receiving space 13 along with the pedal 11. Of course, as a variation, the vertical dimensions of the lower-level vertical support 12 can be greater than or equal to the vertical dimensions of the higher-level vertical support 12, and the horizontal distance between the two outer sides 122 of the lower-level support can be greater than or equal to the horizontal distance between the two inner sides 121 of the higher-level support.

[0055] The outer side 122 of the vertical support 12 can be a protective plate, and the inner side 121 can be equipped with a vertical lifting mechanism 18. A support frame can be installed inside the vertical support 12, and the outer side 122 is a protective plate.

[0056] In one embodiment, each pedal unit 10 may further include a width bracket 14, which extends along the width direction of the tread surface 111 and may extend perpendicularly to the extension direction of the vertical bracket 12. The width brackets 14 between adjacent pedal units 10 are slidably connected, thereby enabling adjacent pedal units 10 to be slidably connected along the width direction of the tread surface 111. A first sliding portion 141 and / or a second sliding portion 142 in each pedal unit 10 are disposed on the width bracket 14.

[0057] In this design, the number of width supports 14 in each pedal unit 10 can be the same as the number of vertical supports 12, that is, two (or a pair) placed on both sides of the length of the pedal 11 to improve the smoothness of relative sliding between the pedal units 10. For example, the two width supports 14 can be placed on both sides of the length of the pedal 11 in an axially symmetrical manner, which will result in even greater smoothness of sliding. Of course, as a variation, the number of width supports 14 can be one or more than two (i.e., more than a pair). When the number of width supports 14 is one, it can be placed in the middle of the lower part of the pedal 11; when the number of width supports 14 is more than two, they can be evenly spaced below the pedal 11 to improve the stability of sliding in the horizontal direction.

[0058] For ease of description of each pedal unit 10, the at least two-stage pedal unit 10 implemented in this application may include a primary pedal unit 101 and a final pedal unit 104, as follows: Figure 2 and Figure 5 As shown. In the primary pedal unit 101, the width bracket 14 has a first sliding portion 141 on a surface perpendicular to the tread surface 111 (or parallel to the vertical direction). Two first sliding portions 141 are arranged facing away from each other to connect with the second sliding portions 142 of adjacent pedal units 10. The first sliding portions 141 can face the second sliding portions 142 on the higher-level width bracket 14.

[0059] In the final pedal unit 104, the width bracket 14 has a second sliding portion 142 on a surface perpendicular to the tread surface 111 (or parallel to the vertical direction). A pair of second sliding portions 142 on the width bracket 14 are arranged facing each other; wherein the second sliding portion 142 can face the first sliding portion 141 on the lower-level width bracket 14. Between adjacent pedal units 10, the first sliding portion 141 is slidably connected to the second sliding portion 142, thereby achieving a slidable connection between adjacent pedal units 10. For example, a test step 100 includes two units: a primary pedal unit 101 and a final pedal unit 104. The first sliding portion 141 of the primary pedal unit 101 can be slidably connected to the second sliding portion 142 of the final pedal unit 104, thereby achieving a relative slidable connection between the two. Of course, as a variation, the width bracket 14 in the primary pedal unit 101 can include a second sliding portion 142 facing opposite each other, while the two width brackets 14 in the final pedal unit 104 include first sliding portions 141 facing away from each other, and the first sliding portion 141 is slidably connected to the second sliding portion 142. The primary pedal unit 101 and the final pedal unit 104 can each have two width brackets 14, and correspondingly two first sliding portions 141 or two second sliding portions 142.

[0060] In one embodiment, at least two-stage pedal units 10 may further include at least one intermediate pedal unit. This intermediate pedal unit is slidably disposed between the primary pedal unit 101 and the final pedal unit 104 along the width direction of the tread surface 111. In each intermediate pedal unit, the width support 14 may include a first sliding portion 141 and a second sliding portion 142. The second sliding portion 142 connects to the first sliding portion 141 of the lower-level pedal unit, and the first sliding portion 141 connects to the second sliding portion 142 of the higher-level pedal unit. The number of intermediate pedal units in the test step 100 can be one, two, three, or more, etc. For example, in this embodiment, it includes a first intermediate pedal unit 102 and a second intermediate pedal unit 103, preferably with the number of pedals in the test step 100 meeting the testing requirements. As a variation, in each intermediate pedal unit, the second sliding portion 142 of the width support 14 connects to the first sliding portion 141 of the higher-level pedal unit, and the first sliding portion 141 connects to the second sliding portion 142 of the lower-level pedal unit 10.

[0061] In this embodiment of the application, when the adjacent first intermediate pedal unit 102 and second intermediate pedal unit 103 are included, such as Figure 2As shown, the primary pedal unit 101 is adjacent to the first intermediate pedal unit 102, and the second intermediate pedal unit 103 is adjacent to the final pedal unit 104. In the first position, the pedal of the primary pedal unit 101 can at least partially slide into the receiving space 13 of the first intermediate pedal unit 102, that is, into the receiving space 13 directly below the tread surface 111 of the first intermediate pedal unit 102; in the first position, the pedal of the first intermediate pedal unit 102 can at least partially slide into the receiving space 13 of the second intermediate pedal unit 103; and in the first position, the pedal of the second intermediate pedal unit 103 can at least partially slide into the receiving space 13 of the final pedal unit 104.

[0062] When including at least two intermediate pedal units, the vertical distance between the tread surface 111 relatively closer to the primary pedal unit 101 and the base surface is smaller than the vertical distance between the tread surface 111 relatively closer to the final pedal unit 104 and the base surface. In other words, from the primary pedal unit 101 to the final pedal unit 104, the vertical distance between each tread surface 111 and the base surface increases step by step, and the length dimension of each tread surface 111 can also increase step by step.

[0063] In order to minimize the horizontal footprint of the entire test step 100 in the first position and facilitate the sliding connection between the width supports 14, it can be configured such that in the first position, half of the area of ​​the lower-level tread 111 (which can be approximately half, or modified to one-third, two-thirds, one-quarter, or three-quarters, etc.) is located directly below the higher-level tread 11, and half of the length of the lower-level width support 14 in the width direction of the tread 111 (such as approximately half, or modified to one-third, two-thirds, one-quarter, or three-quarters, etc.) is also located directly below the higher-level tread 11.

[0064] On each width bracket 14, the arrangement position or sliding stroke of the first sliding part 141 and the second sliding part 142 along the width direction of the tread can be set to adapt to the first position and the second position.

[0065] In one embodiment, the test step 100 may further include a horizontal locking mechanism (not shown). The horizontal locking mechanism can be independently disposed on each pedal unit 10, and includes a locked state and an unlocked state. In the locked state, adjacent pedal units 10 are fixedly disposed relative to each other. In the unlocked state, adjacent pedal units 10 are slidably disposed relative to each other along the width direction of the tread surface 111. Specifically, when the width bracket 14 includes a second sliding portion 142 and / or a first sliding portion 141, in the locked state, the cooperating first sliding portion 141 is fixedly disposed relative to the second sliding portion 142; in the unlocked state, the cooperating first sliding portion 141 is slidably disposed relative to the second sliding portion 142.

[0066] In one embodiment, the first sliding part 141 can be a horizontal slider, and the second sliding part 142 can be a horizontal guide rail extending along the width direction of the tread surface 111; alternatively, the second sliding part 142 can be a horizontal slider, and the first sliding part 141 can be a horizontal guide rail extending along the width direction of the tread surface 111. Correspondingly, the horizontal locking mechanism capable of switching between a locked state and an unlocked state can be a locking handle provided on the horizontal slider. The length of the horizontal guide rail along the width direction of the tread surface 111 can be half the length of the width bracket 14 along the width direction of the tread surface 111; the horizontal slider can be positioned at either the highest or lowest position on the width bracket 14.

[0067] In one embodiment, each pedal unit 10 may further include a length bracket 15, which extends along the length direction of the tread surface 111 and connects to the width bracket 14 to improve the strength of the pedal unit 10. The primary pedal unit 101 may have two or more length brackets 15, which, together with the two width brackets 14, form a rectangular frame and are distributed at the four corners of the tread surface 111. The intermediate pedal unit and the final pedal unit 104 may have one or more length brackets 15 distributed among them.

[0068] To test an object stepping on the pedal 11, a recessed cavity is formed in the center of each tread surface 111. The force-measuring element 16 of the test step 100 is housed within this cavity. The upper surface of the force-measuring element 16 is flush with the tread surface 111 to facilitate walking on the pedal 11. The force-measuring element 16 can be rectangular. (See reference...) Figure 8 The bottom of the receiving cavity is provided with a wire hole 115 and an annular support portion 116. The annular support portion 116 supports the force measuring member 16 and surrounds the wire hole 115. If the force measuring member 16 needs to be connected to an external component via a wire, the wire can connect the external component and the force measuring member 16 through the wire hole 115. The force measuring member 16 may undergo slight deformation when stepped on; therefore, if necessary, the force measuring member 16 and the receiving cavity can be in a clearance fit. Of course, if this slight deformation can be ignored, a transition fit can also be used.

[0069] In this embodiment of the application, the number of steps of the test step tread unit 10 can be 2, 3, 4, 5 or more, etc.

[0070] In one embodiment, the tread surface 111 can be a rough surface or a non-slip surface.

[0071] In one embodiment, each pedal unit 10 may further include a guardrail 17, which is disposed on both sides of the tread surface 111 along its length to protect objects walking on the test step 100. For ease of storage and transportation, the guardrail 17 is detachably connected to the tread surface 111, allowing it to be removed from the pedal 11 during storage and transportation. The guardrail 17 and the pedal 11 may be threaded together. Alternatively, the guardrail 17 may not be provided, or it may be non-detachably connected to the pedal 11.

[0072] In one embodiment, the guardrail 17 may be provided with a clearance notch 171. When adjacent pedal units 10 approach each other along the width direction of the tread surface 111, the higher-level pedal 11 can be accommodated in the clearance notch 171 of the lower-level pedal. Thus, the guardrail 17 does not obstruct the lower-level pedal 11 from being received in the accommodating space 13 of the higher-level pedal unit 10. In other words, the higher-level pedal 11 can overlap with the lower-level pedal 11 in the vertical direction. The overall structure of the guardrail 17 may be F-shaped or other shapes. The guardrail 17 of the final pedal unit 104 may not have the clearance notch 171, while the guardrails 17 of other pedal units may have the clearance notch 171.

[0073] In practical applications, one or two of the pedals 11 can be positioned in the first position as needed, while other pedals 11 can be positioned in a non-first position, such as the second position, or a position between the first and second positions. That is, the sliding of the pedals in each pedal unit 10 along the width direction of the tread surface 111 is independent. Only one pedal can slide, while other pedals do not slide along the width direction of the tread surface 111.

[0074] In one embodiment, in each pedal unit 10, the pedal 11 can be slidably connected to the corresponding vertical support 12 in the vertical direction between a third position and a fourth position, wherein the third position is lower than the fourth position, and the sliding is a reciprocating sliding between the third and fourth positions. Of course, as a variation, the pedal 11 and the vertical support 12 can also be connected in other ways, such as a connection that cannot slide relative to each other, or a fixed connection, etc.

[0075] Among them, each pedal unit 10 may include a vertical lifting mechanism 18. The vertical lifting mechanism 18 may include a lifting driver, a lifting guide rail 181, and a lifting slider 182. The lifting guide rail 181 extends in the vertical direction and is disposed on the surface of the vertical bracket 12 facing the pedal 11. The lifting driver drives the lifting slider 182 to be slidably connected relative to the lifting guide rail 181. The pedal 11 may include a first side surface 112 and a second side surface 113. The first side surface 112 and the second side surface 113 are disposed opposite to each other and are respectively located on both sides of the tread surface 111. The first side surface 112 and the second side surface 113 are both disposed on the third sliding portion (or the lifting slider 182). Among them, in each pedal unit 10, the number of the vertical lifting mechanisms 18 may be two, which are respectively disposed on both sides of the tread surface 111 in the length direction. Correspondingly, the first side surface 112 and the second side surface 113 are also respectively disposed on both sides of the tread surface 111 in the length direction.

[0076] In the pedal 11, a square skeleton may be disposed below the tread surface 111 to support the tread surface 111. In the pedal 11, a baffle 114 may also be included. The baffle 114 is disposed between the first side surface 112 and the second side surface 113 and is perpendicular to the tread surface 111. The baffle 114 may be threadedly connected to the square skeleton.

[0077] See Figure 4 Among them, the width dimension of each tread surface 111 may be 300 mm to 500 mm. For example, 350 mm, 400 mm, or 450 mm. The length dimension of each tread surface 111 increases with the increase of the number of steps. The length dimension of the primary tread surface 111 may be 1100 - 1300 mm, such as 1200 mm; the length dimension of the first intermediate tread surface 111 may be 1500 - 1600 mm, such as 1570 mm; the length dimension of the second intermediate tread surface 111 may be 1900 - 2000 mm, such as 1940 mm; the length dimension of the final tread surface 111 may be 2250 - 2400 mm, such as 2310 mm.

[0078] In an embodiment, the vertical lifting mechanism 18 may be symmetrically disposed relative to the tread surface 111. Among them, the lifting driver may include a servo motor 184 and a screw jack. The lifting screw rod 183 of the screw jack is disposed in the vertical direction and is parallel to the lifting guide rail 181, and may also be disposed on the inner side surface 121 of the vertical bracket 12 together with the lifting guide rail 181.

[0079] Among them, the vertical lifting mechanism 18 may have a vertical locking mechanism (not shown in the figure). The vertical locking mechanism has an unlocking state and a locking state. In the unlocking state, the pedal 11 can be lifted and slid relative to the vertical bracket 12. In the locking state, the pedal 11 is fixedly disposed relative to the vertical bracket 12.

[0080] In one embodiment, the width bracket 14 may be located at the bottom end of the vertical bracket 12. The width bracket 14 may include a bracket support portion 144, which is positioned towards the vertical bracket 12 to support it. This allows for a larger sliding travel of the pedal 11 relative to the vertical bracket 12, and the width bracket 14 does not interfere with the sliding connection between the pedal 11 and the vertical bracket 12. As a variation, the width bracket 14 may be connected to the middle of the vertical bracket 12 and located inside a pair of symmetrically arranged vertical brackets 12. The width bracket 14 may include a receiving portion 143 (see...). Figure 4 and Figure 8 The opening of the receiving portion 143 can face downwards to accommodate the servo motor 184, and the servo motor 184 passes through the width bracket 14 and is connected to the screw jack located above the width bracket 14. As a variation, the opening of the receiving portion 143 faces upwards to accommodate the servo motor 184 in the lifting drive.

[0081] In one embodiment, the vertical support 12 may further include a top end and a bottom end disposed at both ends along the vertical direction, wherein the top end may restrict the pedal to a fourth position on the vertical support 12, and the bottom end may restrict the pedal to a third position on the vertical support. To achieve reliable support of the base surface for the test step 100, the bottom ends of each vertical support 12 may be located on the same plane so that they can all reliably contact the base surface. If a width support 14 is provided in the test step 100, it can be understood that the support portion 144 of each width support 14 is located on the same plane, and the vertical dimensions of each width support 14 are the same. Furthermore, if casters 19 are provided below the width supports, then each caster 19 is located on the same plane so that they can all reliably contact the base surface.

[0082] In one embodiment, in the first position, the lower-level vertical support 12 may be located at least partially together with the pedal 11 within the receiving space 13 directly below the higher-level pedal 11.

[0083] Considering that in each pedal unit 10, the pedal 11 and the vertical support 12 are slidably connected in the vertical direction, to avoid the situation where the lower-level vertical support 12 is located in the receiving space 13 directly below the higher-level pedal 11, thus preventing the higher-level pedal 11 from being unable to move freely up and down, in the first position, the lower-level vertical support 12 should be completely outside the receiving space 13 directly below the higher-level pedal 11. Therefore, as Figure 2 , Figure 6 and Figure 7 As shown, except for the final pedal unit 104, the vertical support 12 in other pedal units has a smaller external dimension along the width of the tread surface 111, which can be aligned with the clearance notch 171 on the guardrail 17 to avoid interference with the lifting and lowering of the vertical support 12.

[0084] Therefore, when each pedal unit 10 is in the first position, each pedal 11 can be raised and lowered and slid to the third position. After the guardrail 17 is removed, it is placed above the tread surface 111, thereby further reducing the external volume of the test step 100.

[0085] In one embodiment, to avoid collisions, a proximity switch (not shown) may be provided in each pedal unit 10 to limit the lifting and lowering stroke of each pedal 11. Similarly, another proximity switch may be provided in each pedal unit 10 to limit the sliding stroke of each pedal unit 10 in the horizontal direction. Of course, as a variation, the proximity switch can be replaced with a limit switch or a travel switch.

[0086] In one embodiment, the vertical spacing between adjacent tread surfaces 111 from the primary pedal unit 101 to the final pedal unit 104 (or, from lower to higher pedal units) can be adjusted from 100 mm (corresponding to the third position above) to 350 mm (corresponding to the fourth position above). Taking a test step 100 comprising four pedal units 10 as an example, the vertical spacing between the tread surface 111 in the primary pedal unit 101 and the base surface (the plane supporting the test step 100) is in the range of 100 to 350 mm; the vertical distance between the tread surface 111 in the first intermediate pedal unit and the base surface is in the range of 200 to 700 mm; the vertical distance between the tread surface 111 in the second intermediate pedal unit and the base surface is in the range of 300 to 1050 mm; and the vertical distance between the tread surface 111 in the final pedal unit 104 and the base surface is in the range of 400 to 1400 mm.

[0087] In one embodiment, the testing apparatus may further include a control console (not shown) capable of issuing raising and lowering signals for each of the pedal units 10 and / or horizontal sliding signals along the width direction of the tread surface 111. The control console includes a human-machine interface, which may include a mechanical interface and / or a touchscreen display.

[0088] In one implementation, the human-machine interface has buttons for each level of elevation, with both upward and downward movements performed inching. When the user needs to adjust the height of the pedal 11, they select the corresponding pedal 11 elevation button on the human-machine interface to perform inching elevation. A scale can be installed on the vertical support 12; the user can release their finger after observing that the pedal 11 has reached the desired height to stop the elevation control. Alternatively, instead of a scale, a distance sensor can be installed on the vertical support 12 to monitor the distance between the pedal 11 and the base surface, which is the height of the pedal 11 relative to the base surface. This distance value is then transmitted wirelessly back to the control panel and displayed on the touch screen.

[0089] In one embodiment, the sliding adjustment between adjacent pedal units 10 along the width direction of the tread surface 111 can be manually adjusted; of course, in another embodiment, control information can be issued by the control console to adjust the sliding of each pedal along the width direction of the tread surface 111.

[0090] In one embodiment, each pedal unit 10 has an overall axisymmetric structure; of course, the pedals 11, vertical supports 12, width supports 14, etc., can also have an axisymmetric structure. Figure 3 In this process, the test step 100 or each pedal unit 10 can form a symmetrical structure with the axis AA as the axis of symmetry, thereby improving the structural stability of the test step 100.

[0091] In one embodiment, each pedal unit 10 may have four casters 19 in the receiving portion 143 of the width bracket 14, corresponding to the four corners of the square tread surface 111. Each caster 19 has a sliding state and a self-locking state, and is detachably connected to the width bracket 14. Each pedal unit 10 may have three, five, or more casters 19, preferably to facilitate user movement of the pedal unit 10. The casters 19 may be omnidirectional wheels or round wheels that can only travel along the width direction of the tread surface 111. With the assistance of these casters 19, it is easier to slide each pedal unit 10 relative to adjacent pedal units 10 along the width direction of the tread surface 111.

[0092] In application, caster 19 can directly or indirectly contact the base surface supporting test step 100.

[0093] In one embodiment, the cross-section of the width bracket 14 is shaped like a door in a cross-section perpendicular to the extending direction of the width bracket 14. The inside of the door is a receiving part 143, which can accommodate the caster 19 and / or the motor 184 of the vertical lifting mechanism. The top of the door is a bracket support part 144, which can support the vertical bracket 12. The two sides of the door are a second sliding part 142 and a first sliding part 141, respectively.

[0094] The width of the tread surface 111 in each stage of the pedal unit 10 is the same, and the external dimensions of the width support 14 of each stage of the pedal unit 10 along the width direction of the tread surface 111 can be the same. The external dimensions of the guardrail 17 in each stage along the width direction of the tread surface 111 are also the same.

[0095] like Figure 7As shown, the dimension of the vertical support 12 of the final pedal unit 104 along the width direction of the tread surface 111 can be larger than the dimension of the vertical support 12 of other pedal units along the width direction of the pedal 11. Therefore, when the width of each tread surface 111 is the same and the dimension of the width support 14 in the width direction of the tread surface 111 is also the same, it is possible to make the lower-level pedal 11 slide into the receiving space of the higher-level pedal unit 10. In particular, the external dimension of the vertical support 12 of the final pedal unit 104 along the width direction of the tread surface 111 can be twice the external dimension of the vertical support 12 in other units.

[0096] Along the width direction of the tread 111, except for the final pedal unit 104, the outer dimensions of the tread 111 in each of the other pedal units can be approximately equal to or equal to the outer dimensions of the guardrail 17, or approximately equal to or equal to the dimensions of the width support 14, and approximately twice the outer dimensions of the vertical support 12 in that direction.

[0097] In this embodiment of the application, the pedal or tread can be understood as a step in a staircase or stairs.

[0098] In this embodiment, adjacent treads refer to treads that are adjacent vertically or horizontally; adjacent pedal units refer to pedal units that are adjacent vertically or horizontally.

[0099] In this embodiment of the application, adjacent can include direct adjacent or indirect adjacent.

[0100] In this embodiment of the application, a control method may also be provided, which is applied to the above-mentioned testing device. The control method includes: adjusting the sliding direction and sliding amount of each stage of the pedal unit along the width direction of the tread surface; and adjusting the lifting direction and lifting amount of each stage of the pedal unit along the vertical direction.

[0101] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0102] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0103] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0104] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A testing apparatus, characterized in that, Includes a test step, which comprises at least two tread units; Each of the pedal units includes a pedal and a vertical support, wherein the tread surface of the pedal extends horizontally and is connected to the vertical support; Between adjacent pedal units, the lower-level pedal unit is provided with a first sliding part, and the higher-level pedal unit is provided with a second sliding part. The first sliding part and the second sliding part are slidably engaged along the width direction of the tread surface, causing the lower-level pedal unit to slide between a first position and a second position along the width direction of the tread surface relative to the higher-level pedal unit.

2. The testing apparatus according to claim 1, characterized in that, Each of the pedal units further includes a vertical lifting mechanism, which includes a third sliding part disposed on the pedal and a fourth sliding part disposed on the vertical support. The third sliding part and the fourth sliding part are slidably engaged along the vertical direction of the vertical support, thereby driving the pedal to slide between the third position and the fourth position along the vertical direction. The pedal includes a first side and a second side, which are arranged opposite to each other and located on both sides of the tread surface. Both the first side and the second side are disposed on the third sliding part.

3. The testing apparatus according to claim 1, characterized in that, In the second position, relative to the first position, the lower-level pedal unit is horizontally further away from the higher-level pedal unit; in the first position, the lower-level pedal unit is relatively close to the higher-level pedal unit, and the lower-level pedal is at least partially received in the receiving space directly below the higher-level pedal.

4. The testing apparatus according to claim 1, characterized in that, Each of the pedal units further includes a width bracket, which is located below the pedal and extends along the width direction of the tread surface, and the first sliding part and / or the second sliding part in each of the pedal units are disposed on the width bracket; The width bracket is connected to the bottom end of the vertical bracket, and the width bracket includes a bracket support portion, which is disposed towards the vertical bracket.

5. The testing apparatus according to claim 4, characterized in that, The pedal unit, which has at least two levels, includes a primary pedal unit and a final pedal unit; In the primary pedal unit, the width bracket is provided with the first sliding part on the surface perpendicular to the tread surface, and the two first sliding parts are arranged in opposite directions; In the final pedal unit, the width bracket is provided with a second sliding part on a surface perpendicular to the tread surface, and the two second sliding parts are arranged facing each other.

6. The testing apparatus according to claim 5, characterized in that, The at least two-stage pedal unit further includes at least one intermediate pedal unit disposed between the primary pedal unit and the final pedal unit; in the intermediate pedal unit, each of the width supports includes a first sliding portion and a second sliding portion disposed facing opposite directions.

7. The testing apparatus according to claim 1, characterized in that, The test step also includes a vertical locking mechanism, which has a locked state and an unlocked state; in the locked state, the pedal is fixed relative to the vertical support; in the unlocked state, the pedal is fixed relative to the vertical support and can be raised and lowered and slid.

8. The testing apparatus according to claim 1, characterized in that, The center of each tread surface is recessed to form a receiving cavity; the testing device includes a force measuring element, which is housed in the receiving cavity, and the upper surface of the force measuring element is flush with the tread surface.

9. The testing apparatus according to claim 1, characterized in that, Each of the pedal units further includes guardrails, which are disposed on both sides of the tread length direction; the guardrails are provided with clearance notches, and when the lower-level pedal unit is in the first position, the adjacent higher-level pedal can be accommodated in the clearance notches.

10. The testing apparatus according to claim 1, characterized in that, In the first position, the lower-level vertical support is completely outside the receiving space directly below the higher-level pedal.

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