A step system and ladder

Abstract

The application discloses a pedal system and a ladder, and the pedal system comprises a support column and a support column pedal which is sleeved and supported on the support column. The support column pedal can rotate around the support column by a certain angle in the circumferential direction to switch between different positions, or the support column pedal can be folded or unfolded relative to the support column to switch between different positions. The support column pedal can be stepped on by a user, facilitates the user to climb to a high position to work, and can be stored.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ladders, in particular to a pedal system and a ladder. BACKGROUND

[0002] In the high-altitude operation such as factory, orchard, nursery tree pruning, a ladder is an effective tool for people to operate. The existing ladder has a large space in use, is inconvenient to use, and is not conducive to the high-altitude operation of users. SUMMARY

[0003] The present application aims to solve the problem of the inconvenient use of the existing ladder. The present application provides a pedal system, a support pedal on the pedal system can be stepped on by a user, facilitating the high-altitude operation of the user, and can be stored relative to the support.

[0004] To solve the above technical problem, the embodiment of the present application discloses a pedal system, comprising: a support; a support pedal, which is sleeved and supported on the support, and can rotate around the support by a set angle in the circumferential direction to switch between different positions; or the support pedal can be folded or unfolded relative to the support to switch between different positions.

[0005] By adopting the above technical solution, the support pedal on the ladder can be stepped on by a user, facilitating the high-altitude operation of the user, and can be rotated and folded relative to the support, achieving storage and reducing the occupied space. The support pedal can be prevented from being damaged by collapse or impact after being folded.

[0006] According to another specific embodiment of the present application, the support pedal can be folded or unfolded relative to the support to switch between different positions, the different positions including a storage position and a stepping position; wherein, in the storage position, the support pedal is parallel to the support; in the stepping position, the support pedal is stepped on by a user.

[0007] According to another specific embodiment of the present application, the support pedal can rotate around the support by a set angle in the circumferential direction to switch between different positions, the different positions including a storage position and a stepping position; wherein, in the storage position, the support pedal is arranged towards the ladder frame; in the stepping position, the support pedal is stepped on by a user.

[0008] According to another specific embodiment of the present application, the stepping position is at least two.

[0009] According to another specific embodiment of the present application, the set angle is between 0° and 360°.

[0010] According to another specific embodiment of the present application, the set angle is 180°.

[0011] According to another specific embodiment of the present application, the pillar step is capable of moving upward along the extension direction of the pillar, rotating around the pillar by a certain angle along the circumferential direction, and then moving downward along the extension direction of the pillar to switch between the different positions; wherein,

[0012] The movement of the pillar step along the circumferential direction is limited before and after the pillar step switches between the different positions.

[0013] According to another specific embodiment of the present application, the outer surface of the pillar is provided with a fixing base, the fixing base is provided with at least two clamping grooves along the circumferential direction, each of the clamping grooves extends along the extension direction of the pillar, and the bottom of each of the clamping grooves is provided with a supporting portion.

[0014] The inner wall of the pillar step is provided with at least one clamping block matched with the clamping grooves.

[0015] The inner wall of the pillar step is sleeved on the outer surface of the fixing base, the clamping block is located in the clamping groove and supported on the supporting portion before and after the pillar step switches between the different positions.

[0016] The inner wall of the pillar step is capable of moving upward along the extension direction of the pillar relative to the fixing base until the clamping block is separated from the clamping groove, and then the clamping block moves downward along the clamping groove by a certain angle along the circumferential direction after rotating around the outer surface of the pillar to switch between the different positions.

[0017] According to another specific embodiment of the present application, the number of the clamping blocks is one, two, three or four.

[0018] According to another specific embodiment of the present application, the number of the clamping grooves includes two, three, four or eight.

[0019] According to another specific embodiment of the present application, the at least two clamping grooves are distributed at equal intervals along the circumferential direction.

[0020] According to another specific embodiment of the present application, the fixing base is capable of moving a certain distance along the extension direction of the pillar and then fixedly connected with the outer surface of the pillar.

[0021] According to another specific embodiment of the present application, the distance between the pillar step and the top of the pillar along the extension direction of the pillar is 250mm to 500mm.

[0022] The application also provides a ladder, comprising: a ladder frame; and the footboard system of any one of the above, the top of the support of the footboard system being rotatably connected to the ladder frame, so as to switch the ladder between the folded state and the unfolded state.

[0023] According to another specific embodiment of the application, the ladder frame comprises two ladder legs arranged at the bottom of the ladder frame and a ladder frame footboard arranged between the top of the ladder frame and the two ladder legs; the bottom of the support is provided with a ladder leg, and the ladder is grounded by the ladder leg in the unfolded state.

[0024] According to another specific embodiment of the application, the top of the ladder frame is provided with a ladder platform, and the top of the support is rotatably connected to the ladder platform.

[0025] According to another specific embodiment of the application, the material of the ladder frame and the support is aluminum alloy or magnesium alloy or steel.

[0026] According to another specific embodiment of the application, a limiting member is arranged between the support and the ladder frame, for limiting the maximum unfolding angle of the ladder.

[0027] According to another specific embodiment of the application, the limiting member is a chain, and the two ends of the chain are respectively connected to the support and the ladder frame. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A perspective view of the ladder according to an embodiment of the application Figure 1 ;

[0029] Figure 2 A perspective view of the ladder according to an embodiment of the application Figure 2 ;

[0030] Figure 3 A perspective view of the ladder according to an embodiment of the application Figure 3 ;

[0031] Figure 4 A schematic view of the ladder according to an embodiment of the application in use

[0032] Figure 5 A perspective view of the support of the ladder according to an embodiment of the application Figure 1 ;

[0033] Figure 2 A perspective view of the support of the ladder according to an embodiment of the application Figure 2 ;

[0034] Figure 7 A schematic view of the footboard of the support of the ladder according to an embodiment of the application

[0035] Figure 8A structure diagram of a fixing base of a stanchion of a ladder according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0036] The present application will now be described in detail below with specific embodiments. Other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present application. Although the present application will be described in conjunction with the preferred embodiments, it is not intended that the present application be limited to only these embodiments. On the contrary, it is intended to cover alternatives, modifications, and equivalents, which are included within the scope of the present application as defined by the claims. To provide a thorough understanding of the present application, numerous specific details are described in the following description. However, it is understood that the present application can be practiced without these details. In some instances, well-known structures and functions have not been described in detail in order to avoid obscuring the present application. It is important to note that embodiments of the present application and features of the embodiments can be combined with each other unless it is not conflicted.

[0037] It should be noted that like reference numerals and letters in the present specification and the drawings represent similar items, and thus once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0038] To make the objects, technical solutions, and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0039] Reference Figures 1 to 3 The present application provides a ladder 1. The present application takes a three-legged folding ladder as an example for illustration, but the present application is not limited to a three-legged folding ladder, and can also be other types of ladders (for example, a four-legged ladder) capable of installing a footboard system described below. The ladder 1 comprises a ladder stand 10 and a stanchion 20 of a footboard system. Exemplarily, the materials of the ladder stand 10 and the stanchion 20 are aluminum alloy or magnesium alloy or steel. Exemplarily, the ladder stand 10 of the present application comprises two ladder legs 11 arranged at the bottom of the ladder stand 10 and a ladder stand footboard 12 arranged between the top of the ladder stand 10 and the two ladder legs 11. The shape and number of the ladder stand footboard 12 of the present application are not limited, Figure 1 and Figure 3 Four ladder stand footboards 12 are shown in FIG. 1. In some possible embodiments, other numbers of ladder stand footboards 12 can be arranged according to the needs of climbing operations. Exemplarily, the four ladder stand footboards 12 are arranged in parallel with each other. The two ends of the ladder stand footboard 12 are connected to ladder poles of the ladder stand 10, and exemplarily, the ladder poles extend from the bottom of the ladder stand 10 to the top of the ladder stand 10.

[0040] The top of the stanchion 20 is rotationally connected to the ladder stand 10, so that the ladder 1 can be in a folded state and an unfolded state Figure 1 andFigure 3 As shown, the support column 20 is provided with a ladder foot 21 at its bottom. Exemplarily, the support column 20 and the ladder frame 10 rotate relative to each other to switch from an unfolded state to a folded state.

[0041] When the ladder 1 is being transported in bundles or not in use, it is in a folded state, with the support column 20 and the ladder frame 10 fitting together, reducing its footprint. When the ladder 1 is in use, it is in an unfolded state, touching the ground via the aforementioned ladder feet. For example, in the unfolded state, the extension direction of the support column 20 ( Figure 1 (as shown in the X direction) and the extension direction of the ladder 10 (as shown in the X direction) and the extension direction of Figure 1 The included angle (as shown in the Y direction) is set at an acute angle. For example, the above-mentioned support column 20 is in the shape of a circular tube or an ellipse.

[0042] Continue to refer to Figures 1 to 3 The ladder 1 of this application also includes a support step 30 of a step system, which is sleeved on and supported by the support post 20. Exemplarily, the support step 30 is perpendicular to the support post 20. The support step 30 is capable of circumferential movement (…). Figure 2 (As shown in direction B) Rotate around the support 20 to set an angle to switch between different positions. The support plate 30 is for the user to step on. When the ladder 1 is in the open state, for example when performing climbing operations such as gardening orchard or pruning seedlings and trees, the user can step on the ladder plate 12 of the ladder frame 10 with one foot and step on the support plate 30 with the other foot, which is convenient for the user to climb.

[0043] For example, along the extending direction of the support post 20, the distance between the support post pedal 30 and the top of the support post 20 is 250mm to 500mm, including 250mm and 500mm. Within this parameter range, it is convenient for the user to step on the support post pedal 30.

[0044] For example, the different locations mentioned above include storage locations ( Figure 1 (as shown) and the stepping position ( Figure 3 (As shown in the diagram). The user can switch between the stowed position and the stepping position by rotating the support pedal 30. The stepping position is the position where the ladder 1 is in the unfolded state, and the stowed position is the position where the ladder 1 is in the stowed state.

[0045] With this configuration, when the ladder 1 is being bundled for transport or not in use, the support plate 30 can be rotated and folded into a storage position, thus reducing the space occupied. At the same time, the folded support plate 30 can prevent damage to the support plate 30 caused by collapse or impact.

[0046] For example, refer to Figure 1 In the aforementioned storage location, the support step 30 is positioned facing the ladder frame 10; (Reference)Figure 3 In the stepping position, the strut pedal 30 is ready for a user to step on.

[0047] In some possible implementations, the strut pedal 30 is foldable or unfoldable relative to the strut 20 to switch between different positions. Also, the different positions include the stowed position and the stepping position; in the stowed position, the strut pedal 30 is parallel to the strut 20; in the stepping position, the strut pedal 30 is ready for a user to step on.

[0048] The present application illustrates an example of switching between different positions by rotating the strut pedal 30 around the strut 20.

[0049] In some possible implementations, the preset angle of rotating the strut pedal 30 around the strut 20 is between 0° and 360°, excluding 0°. That is, the strut pedal 30 is rotatable around the strut 20 by any angle (excluding 0°) between 0° and 360° in the circumferential direction to switch between different positions. The preset angle is, for example, 30°, 45°, 60°, 90°, 120°, 180°, 210°, etc.

[0050] The present application illustrates an example of the preset angle being 180°. Referring to Figure 1 and Figure 3 , the strut pedal 30 is rotatable around the strut 20 by 180° in the circumferential direction to switch between the stowed position and the stepping position. That is, when the strut pedal 30 is in the stowed position (as shown in Figure 1 ), the strut pedal 30 is rotated around the strut 20 by 180° in the circumferential direction, and the strut pedal 30 is in the stepping position (as shown in Figure 3 ). Alternatively, when the strut pedal 30 is in the stepping position (as shown in Figure 3 ), the strut pedal 30 is rotated around the strut 20 by 180° in the circumferential direction, and the strut pedal 30 is in the stowed position (as shown in Figure 1 ). The strut pedal 30 can be rotated by 180° in the circumferential direction in the forward direction or in the reverse direction to switch between the stowed position and the stepping position. Such an arrangement can improve the convenience and stability of the user stepping on the strut pedal 30.

[0051] In some possible implementations, there are at least two stepping positions. That is, the strut pedal 30 can be rotated from the stowed position to different stepping positions in the circumferential direction to facilitate the user to adjust the stepping position according to the needs of the climbing operation. An example is provided with three stepping positions. For example, the strut pedal 30 is rotated around the strut 20 by 90° in the circumferential direction from the stowed position to switch to a first stepping position; or the strut pedal 30 is rotated around the strut 20 by 120° in the circumferential direction from the stowed position to switch to a second stepping position; or the strut pedal 30 is rotated around the strut 20 by 180° in the circumferential direction from the stowed position to switch to a third stepping position.

[0052] Thus, the user selects the stanchion pedal 30 to be switched from the storage position to the first stepping position or the second stepping position or the third stepping position according to the work requirement.

[0053] With reference to Figures 1 to 3 , in combination with Figures 4 to 8 , it is shown that the stanchion pedal 30 of the present application can be moved upward along the extension direction of the stanchion 20 (indicated by direction A in Figure 2 and Figure 4 ), rotated by a certain angle along the circumferential direction (indicated by direction B in Figure 2 and Figure 4 ), and then moved downward along the extension direction of the stanchion 20 (indicated by direction C in Figure 3 and Figure 4 ) to switch between different positions. Before and after the stanchion pedal 30 is switched between different positions, the movement of the stanchion pedal 30 along the circumferential direction is limited.

[0054] That is, during the switching of the stanchion pedal 30 between different positions, the stanchion pedal 30 is first taken out upward (indicated by process ① in Figure 4 ), then rotated by a certain angle along the circumferential direction, and finally put down downward (indicated by process ② in Figure 4 ). After the stanchion pedal 30 is switched between different positions, i.e., is in the corresponding position (storage position or stepping position), the stanchion pedal 30 is supported on the stanchion 20 and cannot move relative to the stanchion 20 along the circumferential direction. Thus, the connection stability of the stanchion pedal 30 on the stanchion 20 is improved, and the position of the stanchion pedal 30 cannot be easily changed, and noise (such as collision between the stanchion pedal 30 and the stanchion 20 or the ladder stand 10) is not generated.

[0055] The connection mode of the stanchion pedal 30 and the stanchion 20 is not limited, and any connection mode that can achieve the above-mentioned movement (indicated by Figure 4 ) belongs to the protection scope of the present application.

[0056] In some possible embodiments, with reference to Figure 2 , Figure 5 , Figure 7 and Figure 8 , the outer surface of the stanchion 20 is convexly provided with a fixing seat 22, the fixing seat 22 is circumferentially provided with at least two clamping grooves 221, each clamping groove 221 extends along the extension direction of the stanchion 20, and the bottom of each clamping groove 221 is provided with a supporting portion 222; the inner wall of the stanchion pedal 30 is convexly provided with at least one clamping block 31 matched with the clamping groove 221. Before and after the stanchion pedal 30 is switched between different positions, the inner wall of the stanchion pedal 30 is sleeved on the outer surface of the fixing seat 22, the clamping block 31 is located in the clamping groove 221, and is supported on the supporting portion 222.

[0057] The inner wall of the support pedal 30 can move upward relative to the fixed seat 22 along the extension direction of the support 20, and the locking block 31 also moves upward relative to the locking groove 221 accordingly, until the locking block 31 separates from the locking groove 221. Figure 2 As shown), after the support pedal 30 rotates around the outer surface of the support 20 in the circumferential direction by a set angle, the locking block 31 aligns with the locking groove 221 and moves downward along the locking groove 221 until the locking block 31 is supported on the support part 222, so as to switch between different positions.

[0058] That is, when the support pedal 30 is in use (switching from the storage position to the stepping position): the support pedal 30 is taken out of the fixing base 22, then rotated outward and put into the fixing base 22 for fixing.

[0059] When the support pedal 30 is not in use (switching from the stepping position to the storage position): the support pedal 30 is taken out of the fixing base 22 and then rotated inward and put into the fixing base 22 for fixation.

[0060] Figure 7 (a) to (d) in the figure show that the number of card blocks 31 is one, two, three, and four, respectively. Figure 8 (a) to (d) show that the number of slots 221 includes two, three, four, and eight, respectively. The number of card blocks 31 and slots 221 in this application is not limited to these, and the corresponding number of card blocks 31 and slots 221 can be set according to the angle of circumferential rotation of the support pedal 30.

[0061] In this application, Figures 1 to 6 The diagram shows that the support pedal 30 rotates 180° in the circumferential direction, and the number of locking blocks 31 is four (e.g., ...). Figure 7 As shown in (d), the number of card slots 221 is also four (as shown in the middle). Figure 8 (As shown in (c)). The four slots 221 are evenly spaced circumferentially. When the support pedal 30 is in the retracted position and the stepping position, the four locking blocks 31 are respectively located in the four slots 221. Thus, there are three stepping positions. For example, the support pedal 30 can switch to the first stepping position after rotating 90° around the support 20 circumferentially from the retracted position; or, the support pedal 30 can switch to the second stepping position after rotating 180° around the support 20 circumferentially from the retracted position; or, the support pedal 30 can switch to the third stepping position after rotating 270° around the support 20 circumferentially from the retracted position.

[0062] In some possible implementations, such as Figure 8 As shown in (a), there are two card slots 221, which are evenly spaced along the circumference. The number of card blocks 31 can be one. Figure 7In the case of (a) shown in FIG. 6, the number of the clamping blocks 31 is one. Figure 7 In the case of (b) shown in FIG. 6, the number of the clamping blocks 31 is one.

[0063] In some possible embodiments, as shown in Figure 8 In the case of (b) shown in FIG. 6, the number of the clamping blocks 31 is one. Figure 7 In the case of (a) shown in FIG. 6, the number of the clamping blocks 31 is two. Figure 7 In the case of (c) shown in FIG. 6, the number of the clamping blocks 31 is two.

[0064] In some possible embodiments, as shown in Figure 8 In the case of (d) shown in FIG. 6, the number of the clamping blocks 31 is one. Figure 7 In the case of (a) shown in FIG. 6, the number of the clamping blocks 31 is seven. Figure 7 In the case of (b) shown in FIG. 6, the number of the clamping blocks 31 is seven. Figure 7 In the case of (c) shown in FIG. 6, the number of the clamping blocks 31 is four. Figure 7 In the case of (d) shown in FIG. 6, the number of the clamping blocks 31 is four.

[0065] Exemplarily, the fixing seat 22 and the support part 222 are connected to the outer surface of the support column 20 by welding, which is simple and convenient. However, the application is not limited thereto, and in some possible embodiments, the fixing seat 22 and the support part 222 can be connected to the outer surface of the support column 20 by means of screws, rivets, draw nails, stamping reverse buckling, etc.

[0066] In some possible embodiments, the fixing seat 22 can be fixedly connected to the outer surface of the support column 20 after moving a set distance along the extension direction of the support column 20. That is, the position of the fixing seat 22 on the support column 20 can be changed, so that the position of the support column pedal 30 on the support column 20 can be changed, and the setting position of the support column pedal 30 can be determined according to the height of the user, so as to facilitate the user to step on the support column pedal 30 and realize the climbing operation.

[0067] In some possible embodiments, a plurality of support column pedals 30 can be arranged on the support column 20, for example Figure 6 FIG. 6 shows that two support column pedals 30 are arranged on the support column 20. In this way, more stepping positions can be provided for the user, and the user can conveniently perform the climbing operation.

[0068] In some possible embodiments, referring to Figures 1 to 3The top of the ladder frame 10 is provided with a ladder platform 13, and the top of the support column 20 is rotatably connected with the ladder platform 13. The folding of the ladder 1 is facilitated, and the occupied space is reduced.

[0069] In some possible embodiments, with reference to Figures 1 to 3 A limiting member 40 is arranged between the support column 20 and the ladder frame 10, for limiting the maximum unfolding angle of the ladder 1. That is, under the action of the limiting member 40, the included angle between the support column 20 and the ladder frame 10 is controlled, so that the support column 20 and the ladder frame 10 cannot be unfolded to a too large angle, and the ladder 1 cannot be stably placed on the ground.

[0070] Exemplarily, the limiting member 40 is a chain, and the two ends of the chain are respectively connected with the support column 20 and the ladder frame 10. The chain pulls the support column 20 and the ladder frame 10 respectively, so as to limit the maximum unfolding angle of the ladder 1. Exemplarily, the maximum unfolding angle of the ladder 1 is an acute angle such as 30° or 45°.

[0071] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood by the skilled in the art that the foregoing is a further detailed description of the present application in connection with specific embodiments, and the specific embodiments do not limit the present application. The skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present application.

Claims

1. A pedal system characterized by, The utility model relates to a folding ladder system, comprising: a support column; a support column pedal sleeved and supported on the support column; the support column pedal can move upward along the extension direction of the support column, rotate a set angle around the support column in the circumferential direction, and then move downward along the extension direction of the support column to switch between different positions; wherein the movement of the support column pedal in the circumferential direction is limited before and after the switching between the different positions; the outer surface of the support column is convexly provided with a fixing seat, the inner wall of the support column pedal is sleeved on the outer surface of the fixing seat, the fixing seat can be fixedly connected with the outer surface of the support column after moving a set distance along the extension direction of the support column to change the position of the support column pedal on the support column; the fixing seat is provided with at least two clamping grooves in the circumferential direction, each clamping groove extends along the extension direction of the support column, and the bottom of each clamping groove is provided with a supporting part; the inner wall of the support column pedal is convexly provided with at least one clamping block matched with the clamping groove; the clamping block is located in the clamping groove and supported on the supporting part before and after the switching between the different positions; the inner wall of the support column pedal can move upward relative to the fixing seat along the extension direction of the support column until the clamping block is separated from the clamping groove, then rotate a set angle around the outer surface of the support column in the circumferential direction, and the clamping block moves downward along the clamping groove until the clamping block is supported on the supporting part to switch between the different positions.

2. The pedal system of claim 1, wherein, the different positions include a storage position and a stepping position; wherein in the storage position, the support column pedal is arranged towards the ladder stand; in the stepping position, the support column pedal is used for stepping by a user.

3. The pedal system of claim 2, wherein, the stepping position is at least two.

4. Pedal system according to claim 2 or 3, characterized in that the set angle is between 0° and 360°.

5. The pedal system of claim 4, wherein, the set angle is 180°.

6. The pedal system of claim 1, wherein, the number of clamping blocks is one, two, three or four.

7. The pedal system of claim 1 or 6, wherein, the number of clamping grooves includes two, three, four or eight.

8. The pedal system of claim 7, wherein, the at least two clamping grooves are equally spaced in the circumferential direction.

9. The pedal system of any one of claims 1 to 3, 5, 6, and 8, wherein, the distance between the support column pedal and the top of the support column along the extension direction of the support column is 250mm to 500mm.

10. A ladder characterized in that, The utility model relates to a folding ladder system, comprising: a ladder stand; the support column of the pedal system in any one of claims 1 to 9 is rotationally connected with the top of the ladder stand to switch the ladder between a folded state and an unfolded state.

11. The ladder of claim 10, wherein, the ladder stand comprises two ladder legs arranged at the bottom of the ladder stand and a ladder stand pedal arranged between the top of the ladder stand and the two ladder legs; the bottom of the support column is provided with a ladder leg, and the ladder is grounded through the ladder leg in the unfolded state.

12. Ladder according to claim 10 or 11, characterized in that the top of the ladder stand is provided with a ladder platform, and the top of the support column is rotationally connected with the ladder platform.

13. The ladder of claim 10, wherein, the materials of the ladder stand and the support column are aluminum alloy, magnesium alloy or steel.

14. The ladder of claim 10, wherein, a limiting piece is arranged between the support column and the ladder stand to limit the maximum unfolding angle of the pedal system.

15. The ladder of claim 14, wherein, the limiting piece is a chain, and the two ends of the chain are respectively connected with the support column and the ladder stand.

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