Foldable and telescopic pedal platform

Abstract

The foldable and telescopic pedal platform comprises a folding ladder assembly and a telescopic assembly, and the folding ladder assembly comprises a first folding ladder body and a second folding ladder body; the first folding ladder body is provided with a positioning groove, the positioning groove is connected with an auxiliary assembly, the second folding ladder body is provided with a mounting groove, and the inner surface of the mounting groove is connected with a sliding assembly; the groove bodies are formed in the surfaces of the first folding ladder body and the second folding ladder body, main stress points of the first folding ladder body and the second folding ladder body are avoided, deformation of the first folding ladder body or the second folding ladder body caused when an operator climbs is prevented, meanwhile, the first folding ladder body and the second folding ladder body rotate, and therefore the safety of the operator is improved. The installation positions of the first folding ladder body and the second folding ladder body are adjusted so that the ladder body can serve as a maintenance platform and support maintenance personnel to complete maintenance work, in addition, the auxiliary assembly and the sliding assembly are both of a detachable structure with the first folding ladder body and the second folding ladder body, and the auxiliary assembly and the sliding assembly are convenient to store and carry additionally.

Description

Technical Field

[0001] The utility model relates to the technical field of pedal platforms, in particular to a foldable and retractable pedal platform. Background Art

[0002] The F-class gas turbine is a heavy-duty gas turbine with a frequency of 50Hz. External air enters the compressor through the air intake system. The air enters the annular combustion chamber after being compressed by the compressor. Natural gas is ejected through 24 burners evenly distributed around the circumference and burned to increase the temperature of the gas. The high-temperature and high-pressure gas discharged from the combustion chamber is converted into mechanical energy by the turbine to drive the shaft system to rotate. The exhaust gas is discharged through the exhaust diffuser. It is necessary to frequently inspect and repair the turbine bearing seat and the inside of the exhaust diffuser.

[0003] Since the inner walls of the turbine bearing seat and the exhaust diffuser are circular and have a large inner diameter, and especially since there are many turbine bearing assemblies in the turbine bearing seat and they are difficult to inspect and maintain, a maintenance platform that can be stably fixed inside the exhaust diffuser is required to support maintenance personnel in completing maintenance work. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution to the above-mentioned problems.

[0005] A foldable and telescopic step platform comprises a stacking ladder assembly and a telescopic assembly, wherein the stacking ladder assembly comprises a first folding ladder body and a second folding ladder body, and the telescopic assembly comprises a first telescopic ladder and a second telescopic ladder, wherein the first folding ladder body is connected to one end of the second folding ladder body through a folding shaft body, and a rotating shaft is provided in the middle of the folding shaft body, and the first folding ladder body or the second folding ladder body can rotate along the surface of the folding shaft body;

[0006] The surface of the first folding ladder body is provided with a plurality of positioning grooves, the inner surfaces of the positioning grooves are connected with auxiliary components, and the surface of the second folding ladder body is provided with a plurality of installation grooves, the inner surfaces of the installation grooves are connected with sliding components.

[0007] Furthermore, the auxiliary component includes a pad plate and a positioning block, the positioning block is installed at one end of the pad plate, the positioning block and the positioning groove are coaxially arranged, the pad plate and the first folding ladder body are detachable structures, the positioning blocks are rectangularly distributed on the surface of the pad plate, the positioning blocks prevent the pad plate from sliding on the surface of the first folding ladder body, and the rectangular distribution setting is adopted to enable the positioning blocks to limit the positions of the four force points of the pad plate, thereby keeping the pad plate in a fixed state, and the pad plate is used to place the operator to avoid direct contact between the operator's skin and the surface of the first folding ladder body.

[0008] Furthermore, the surface of the pad plate is connected to a limiting belt for limiting the position of a human body, the limiting belt is connected to the outer side surface of the pad plate through a mounting block, the limiting belt is linearly arranged on the surface of the pad plate, and the distance between two adjacent limiting belts is equidistantly set. When an emergency occurs and causes the operator to be injured or unable to move at will, the injured person is placed on the surface of the pad plate, and then the first folding ladder body is pushed, so that the sliding assembly at one end of the second folding ladder body drives the first folding ladder body and the injured person to move, thereby acting as a cart, and the limiting belt plays a role of fixing the human body, reducing the probability of the operator falling from the surface of the pad plate.

[0009] Furthermore, a clamping block is provided at one end of the mounting block, and a mounting buckle which is installed in pair with the clamping block is installed on the surface of the first folding ladder body. The mounting buckle and the clamping block are detachable structures. A clamping block for connecting an external seat belt is provided on the surface of the first folding ladder body. The mounting buckle and the mounting block are coaxially arranged. The clamping block and the mounting buckle adopt the buckling technology of automobile seat belts. This technology is a prior art means. By buckling the clamping block and the mounting buckle, the pad plate is fitted with one end of the first folding ladder body, and at the same time, it plays the role of forming a connection point to prevent the pad plate from falling off the surface of the first folding ladder body.

[0010] Furthermore, the sliding assembly includes a pulley and a mounting frame for limiting the position of the pulley, one end of the mounting frame is connected to a card plate installed in pair with the mounting groove, the card plate and the second folding ladder body are a detachable structure, the card plate can slide along the surface of the mounting groove, when a driving force is applied to the second folding ladder body, the driving force causes the pulley to rotate, so that the pulley drives the second folding ladder body to move, which has the effect of a cart. When an emergency occurs and the operator is injured or unable to move at will, the second folding ladder body can assist the operator in moving by rotating the pulley.

[0011] Furthermore, connecting holes are provided on the surface of the mounting groove, and the connecting holes are rectangularly distributed on the surface of the mounting groove. The rectangular distribution structure is adopted so that the force-bearing area of ​​the connecting holes and the forces acted upon are evenly distributed on the surface of the mounting groove, thereby avoiding deformation of the connecting holes due to excessive local forces. The surface of the card plate is provided with mounting holes used in pair with the connecting holes, and the connecting holes and the mounting holes are coaxially arranged. The coaxial arrangement facilitates the connection of the connecting holes and the mounting holes with external screws, thereby assisting the card plate in being fixed to the surface of the mounting groove.

[0012] Furthermore, one end of the first telescopic ladder and the second telescopic ladder are both sliding rods, and the interior of the first folding ladder body and the second folding ladder body are provided with sliding grooves for accommodating the sliding rods, and the sliding rods can slide along the surface of the sliding grooves, and the surface of the sliding rods is connected to a plurality of ladder climbing plates, and the distance between two adjacent ladder climbing plates is equidistantly set. By applying force to the sliding rods, the sliding rods slide along the surface of the sliding grooves, thereby driving the first telescopic ladder or the second telescopic ladder to extend beyond the interior of the first folding ladder body or the second folding ladder body, completing the telescopic process.

[0013] Furthermore, the surface of the ladder board is provided with anti-skid grooves for increasing friction. Both ends of the ladder board are provided with movable shafts, which extend to the surface of the sliding rod and are flush with the surface of the sliding rod. The ladder board can be rotated with the movable shaft as the center point, thereby adjusting the angle of the ladder board. When the ladder board is at a vertical angle to the sliding rod, the ladder board can no longer move downward. The surface of the ladder board is provided with a support plate for increasing the stability of the connection. When the operator climbs up the ladder board, the anti-skid grooves on the surface of the ladder board increase the contact points between the operator's feet and the surface of the ladder board, thereby increasing friction and preventing the operator's feet from slipping on the surface of the ladder board.

[0014] Furthermore, one end of the first telescopic ladder and the second telescopic ladder are both top blocks, and the surfaces of the first folding ladder body and the second folding ladder body are provided with limiting plates for limiting the position of the top blocks. When the top block moves to the surface of the limiting plate, one end of the top block is blocked by the limiting plate to prevent the first telescopic ladder or the second telescopic ladder from escaping from the interior of the first folding ladder body or the second folding ladder body. The position of the top block is limited by the limiting plate to prevent the first telescopic ladder or the second telescopic ladder from overtravel.

[0015] Furthermore, reinforcing ribs are provided on the surfaces of the first folding ladder body and the second folding ladder body, adjustment holes are opened on the surfaces of the first telescopic ladder and the second telescopic ladder body, and fixing screws are provided on the surfaces of the first folding ladder body and the second folding ladder body for limiting the position of the adjustment holes. When the fixing screws pass through the adjustment holes, the fixing screws exert a temporary force on the adjustment holes, thereby limiting the first telescopic ladder or the second telescopic ladder to one end of the first folding ladder body or the second folding ladder body, thereby preventing the first telescopic ladder or the second telescopic ladder from sliding.

[0016] Furthermore, a connecting plate is installed on the surface of the second telescopic ladder, and a locking screw is connected to the surface of the connecting plate. A fixing plate matched with the locking screw is installed on the surface of the first telescopic ladder. The connecting plate and the fixing plate are locked by the locking screw, thereby limiting the position between the first telescopic ladder and the second telescopic ladder, preventing the first telescopic ladder and the second telescopic ladder from sliding or falling off, and facilitating the folding and storage of the inclined ladder.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: a groove is opened on the surface of the first folding ladder body and the second folding ladder body to avoid the main stress points of the first folding ladder body and the second folding ladder body, thereby preventing the first folding ladder body or the second folding ladder body from being deformed when the operator climbs; at the same time, the first folding ladder body and the second folding ladder body are rotated to adjust the installation position of the first folding ladder body and the second folding ladder body so as to serve as a maintenance platform and support maintenance personnel to complete maintenance work; in addition, the auxiliary assembly and the sliding assembly are both detachable structures from the first folding ladder body and the second folding ladder body; the detachable structure facilitates the storage and carrying of the auxiliary assembly and the sliding assembly separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0019] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0020] Figure 1 The invention is a folding schematic diagram of a foldable and retractable pedal platform;

[0021] Figure 2 is another folding schematic diagram of a foldable and retractable pedal platform;

[0022] Figure 3 It is a schematic diagram of the unfolding of a foldable and retractable pedal platform;

[0023] Figure 4 is a perspective view of a second telescopic ladder in a foldable and telescopic step platform;

[0024] Figure 5 It is a three-dimensional view of a second folding ladder body in a foldable and retractable step platform;

[0025] Figure 6 It is a three-dimensional view of a first folding ladder body in a foldable and retractable step platform;

[0026] Figure 7 is a perspective view of a first telescopic ladder in a foldable and telescopic step platform;

[0027] Figure 8 The present invention is a three-dimensional diagram of a pad plate in a foldable and retractable pedal platform;

[0028] Fig. 9It is a three-dimensional diagram of a mat slide bar in a foldable and retractable pedal platform;

[0029] Fig.10 Another perspective view of a foldable and retractable pedal platform mid-mat slide bar;

[0030] Fig.11 It is a three-dimensional diagram of a mat pulley in a foldable and retractable pedal platform;

[0031] Fig.12 is another stereoscopic view of a mat pulley in a foldable and retractable pedal platform;

[0032] In the figure: the first folding ladder body -1, the second folding ladder body -2, the first telescopic ladder -3, the second telescopic ladder -4, the folding shaft body -5, the rotating shaft -6, the positioning groove -7, the mounting groove -8, the pad plate -9, the positioning block -10, the limiting belt -11, the mounting block -12, the clamping block -13, the mounting buckle -14, the pulley -15, the mounting frame -16, the clamping plate -17, the connecting hole -18, the mounting hole -19, the sliding rod -20, the sliding groove -21, the ladder plate -22, the anti-slip pattern -23, the movable shaft -24, the supporting plate -25, the top block -26, the limiting plate -27, the reinforcing rib -28, the adjusting hole -29, the fixing screw -30, the connecting plate -31, the locking screw -32, the fixing plate -33, the buckle -34. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] For this example, please refer to Figure 1-Figure 12 A foldable and retractable step platform is specifically implemented, including a stacking ladder assembly and a telescopic assembly, the stacking ladder assembly includes a first folding ladder body 1 and a second folding ladder body 2, the telescopic assembly includes a first telescopic ladder 3 and a second telescopic ladder 4, the first folding ladder body 1 is connected to one end of the second folding ladder body 2 through a folding shaft body 5, and a rotating shaft 6 is provided in the middle of the folding shaft body 5, and the first folding ladder body 1 or the second folding ladder body 2 can rotate along the surface of the folding shaft body 5; at this time, the first folding ladder body 1 or the second folding ladder body 2 is in the turbine, and the first folding ladder body 1 and the second folding ladder body 2 rotate between them, and the installation positions of the first folding ladder body 1 and the second folding ladder body 2 are adjusted so as to serve as a maintenance platform and support maintenance personnel to complete maintenance work.

[0035] The surface of the first folding ladder body 1 is provided with a plurality of positioning grooves 7, the inner surfaces of the positioning grooves 7 are connected with auxiliary components, and the surface of the second folding ladder body 2 is provided with a plurality of installation grooves 8, the inner surfaces of the installation grooves 8 are connected with sliding components.

[0036] The auxiliary component includes a pad plate 9 and a positioning block 10. The positioning block 10 is installed at one end of the pad plate 9. The positioning block 10 and the positioning groove 7 are coaxially arranged. The pad plate 9 and the first folding ladder body 1 are detachable structures. The positioning blocks 10 are rectangularly distributed on the surface of the pad plate 9. The positioning blocks 10 prevent the pad plate 9 from sliding on the surface of the first folding ladder body 1. The rectangular distribution setting allows the positioning blocks 10 to limit the positions of the four force points of the pad plate 9, thereby keeping the pad plate 9 in a fixed state. The pad plate 9 is used to support the operator so that the operator can be stably in the turbine under the support of the pad plate 9, the first folding ladder body 1 or the second folding ladder body 2, thereby facilitating the operator to operate in the turbine. In addition, the first folding ladder body 1 and the second folding ladder body 2 are rotated between them to adjust the installation positions of the first folding ladder body 1 and the second folding ladder body 2 to adapt to the internal structure of the turbine and achieve support in different directions.

[0037] The surface of the pad plate 9 is connected with a limiting belt 11 for limiting the position of the human body. The limiting belt 11 is connected to the outer side of the pad plate 9 through the mounting block 12. The limiting belt 11 is linearly arranged on the surface of the pad plate 9, and the distance between two adjacent limiting belts 11 is set equidistantly; by placing the operator on the surface of the pad plate 9, and then pushing the first folding ladder body 1, the sliding assembly at one end of the second folding ladder body 2 drives the first folding ladder body 1 and the injured person to move, playing the role of a cart, so as to adjust the horizontal position of the first folding ladder body 1 and the second folding ladder body 2 relative to the turbine, so as to meet the operator's operating needs at different positions. In addition, the limiting belt 11 plays the role of fixing the operator, reducing the probability of the operator falling from the surface of the pad plate 9.

[0038] A clamping block 13 is provided at one end of the mounting block 12, and a mounting buckle 14 which is installed in pair with the clamping block 13 is installed on the surface of the first folding ladder body 1. The mounting buckle 14 and the clamping block 13 are detachable structures. A buckle 34 for connecting an external seat belt is provided on the surface of the first folding ladder body 1. The mounting buckle 14 and the mounting block 12 are coaxially arranged. The clamping block 13 and the mounting buckle 14 adopt the buckling technology of the car seat belt, which is a prior art means. By buckling the clamping block 13 and the mounting buckle 14, the pad plate 9 is fitted with one end of the first folding ladder body 1, and at the same time, it plays the role of forming a connection point to prevent the pad plate 9 from falling off the surface of the first folding ladder body 1.

[0039] The sliding assembly includes a pulley 15 and a mounting frame 16 for limiting the position of the pulley 15. One end of the mounting frame 16 is connected to a card plate 17 that is installed in pair with the mounting groove 8. The card plate 17 and the second folding ladder body 2 are detachable structures. The card plate 17 can slide along the surface of the mounting groove 8. When a driving force is applied to the second folding ladder body 2, the driving force causes the pulley 15 to rotate, thereby causing the pulley 15 to drive the second folding ladder body 2 to move. The rotation of the pulley 15 causes the second folding ladder body 2 to assist the operator in moving.

[0040] A connecting hole 18 is provided on the surface of the mounting groove 8. The connecting holes 18 are rectangularly distributed on the surface of the mounting groove 8. The rectangular distribution structure is adopted so that the force-bearing area and the force applied to the connecting hole 18 are evenly distributed on the surface of the mounting groove 8, thereby avoiding deformation of the connecting hole 18 due to excessive local force. A mounting hole 19 is provided on the surface of the clamping plate 17 for use in pair with the connecting hole 18. The connecting hole 18 and the mounting hole 19 are coaxially arranged. The coaxial arrangement facilitates the connection of the connecting hole 18 and the mounting hole 19 with external screws, thereby assisting the clamping plate 17 in being fixed to the surface of the mounting groove 8.

[0041] The first telescopic ladder 3 and the second telescopic ladder 4 both have a sliding rod 20 at one end, and the first folding ladder body 1 and the second folding ladder body 2 are both provided with a sliding groove 21 inside for accommodating the sliding rod 20, and the sliding rod 20 can slide along the surface of the sliding groove 21, and a plurality of ladder plates 22 are connected to the surface of the sliding rod 20, and the distance between two adjacent ladder plates 22 is equidistantly set. By applying a force to the sliding rod 20, the sliding rod 20 slides along the surface of the sliding groove 21, thereby driving the first telescopic ladder 3 or the second telescopic ladder 4 to extend beyond the first folding ladder body 1 or the second folding ladder body 2, completing the telescopic process.

[0042] The surface of the ladder board 22 is provided with anti-skid grooves 23 for increasing friction. Both ends of the ladder board 22 are provided with movable shafts 24. The movable shafts 24 extend to the surface of the sliding rod 20 and are flush with the surface of the sliding rod 20. The ladder board 22 can be rotated with the movable shaft 24 as the center point, thereby adjusting the angle of the ladder board 22. When the ladder board 22 is at a vertical angle to the sliding rod 20, the ladder board 22 can no longer move downward. The surface of the ladder board 22 is provided with a supporting plate 25 for increasing the stability of the connection. When the operator climbs up the ladder board 22, the anti-skid grooves 23 on the surface of the ladder board 22 increase the contact points between the operator's feet and the surface of the ladder board 22, thereby increasing the friction and preventing the operator's feet from slipping on the surface of the ladder board 22.

[0043] One end of the first telescopic ladder 3 and the second telescopic ladder 4 are both provided with a top block 26, and the surfaces of the first folding ladder body 1 and the second folding ladder body 2 are provided with a limiting plate 27 for limiting the position of the top block 26. When the top block 26 moves to the surface of the limiting plate 27, one end of the top block 26 is blocked by the limiting plate 27 to prevent the first telescopic ladder 3 or the second telescopic ladder 4 from escaping from the first folding ladder body 1 or the second folding ladder body 2. The position of the top block 26 is limited by the limiting plate 27 to prevent the first telescopic ladder 3 or the second telescopic ladder 4 from overtravelling.

[0044] The surfaces of the first folding ladder body 1 and the second folding ladder body 2 are both provided with reinforcing ribs 28, the surfaces of the first telescopic ladder 3 and the second telescopic ladder 4 are both provided with adjustment holes 29, and the surfaces of the first folding ladder body 1 and the second folding ladder body 2 are both provided with fixing screws 30 for limiting the position of the adjustment holes 29. When the fixing screws 30 pass through the adjustment holes 29, the fixing screws 30 exert a temporary force on the adjustment holes 29, thereby limiting the first telescopic ladder 3 or the second telescopic ladder 4 to one end of the first folding ladder body 1 or the second folding ladder body 2, thereby preventing the first telescopic ladder 3 or the second telescopic ladder 4 from sliding.

[0045] A connecting plate 31 is installed on the surface of the second telescopic ladder 4, and a locking screw 32 is connected to the surface of the connecting plate 31. A fixing plate 33 matched with the locking screw 32 is installed on the surface of the first telescopic ladder 3. The connecting plate 31 and the fixing plate 33 are locked by the locking screw 32, so as to limit the position between the first telescopic ladder 3 and the second telescopic ladder 4, thereby preventing the first telescopic ladder 3 and the second telescopic ladder 4 from sliding or falling off, ensuring the support structure between the first telescopic ladder 3 and the second telescopic ladder 4, and improving the bearing capacity of the first telescopic ladder 3 and the second telescopic ladder 4. At the same time, it is convenient for the inclined ladder to be folded and stored.

[0046] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.

[0047] The key design point of this embodiment is to increase the hemostatic effect of the gastric clamp by using the hemostatic component, and to increase the functional use of the gastric clamp in a replaceable manner to achieve a multifunctional effect.

[0048] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0049] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0050] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A foldable and retractable step platform, comprising a folding ladder assembly and a retractable assembly, characterized in that: The stacking ladder assembly comprises a first folding ladder body and a second folding ladder body, the telescopic assembly comprises a first telescopic ladder and a second telescopic ladder, the first folding ladder body is connected to one end of the second folding ladder body through a folding shaft body, a rotating shaft is provided in the middle of the folding shaft body, and the first folding ladder body or the second folding ladder body can rotate along the surface of the folding shaft body; The surface of the first folding ladder body is provided with a plurality of positioning grooves, the inner surfaces of the positioning grooves are connected with auxiliary components, and the surface of the second folding ladder body is provided with a plurality of installation grooves, the inner surfaces of the installation grooves are connected with sliding components.

2. The foldable and retractable pedal platform according to claim 1, characterized in that: The auxiliary component includes a pad plate and a positioning block, wherein the positioning block is installed at one end of the pad plate, the positioning block and the positioning groove are coaxially arranged, the pad plate and the first folding ladder body are detachable structures, and the positioning blocks are rectangularly distributed on the surface of the pad plate.

3. The foldable and retractable pedal platform according to claim 2, characterized in that: The surface of the pad plate is connected with a limiting belt for limiting the position of the human body. The limiting belt is connected to the outer side of the pad plate through a mounting block. The limiting belt is linearly arranged on the surface of the pad plate, and the distance between two adjacent limiting belts is equidistant.

4. The foldable and retractable pedal platform according to claim 3, characterized in that: A clamping block is provided at one end of the mounting block, and a mounting buckle which is matched with the clamping block is installed on the surface of the first folding ladder body, and the mounting buckle and the clamping block are detachable structures. A buckle for connecting an external safety belt is provided on the surface of the first folding ladder body, and the mounting buckle and the mounting block are coaxially arranged.

5. A foldable and retractable pedal platform according to any one of claims 1 to 4, characterized in that: The sliding assembly includes a pulley and a mounting frame for limiting the position of the pulley, one end of the mounting frame is connected to a card plate that is installed in pair with the mounting groove, the card plate and the second folding ladder body are detachable structures, and the card plate can slide along the surface of the mounting groove.

6. The foldable and retractable pedal platform according to claim 5, characterized in that: The surface of the mounting groove is provided with connecting holes, which are rectangularly distributed on the surface of the mounting groove. The surface of the card plate is provided with mounting holes used in pair with the connecting holes, and the connecting holes and the mounting holes are coaxially arranged.

7. A foldable and retractable pedal platform according to any one of claims 1 to 4, characterized in that: One end of the first telescopic ladder and the second telescopic ladder is a sliding rod, and the interior of the first folding ladder body and the second folding ladder body is provided with a sliding groove for accommodating the sliding rod, and the sliding rod can slide along the surface of the sliding groove. A plurality of ladder plates are connected to the surface of the sliding rod, and the distance between two adjacent ladder plates is equidistant.

8. The foldable and retractable pedal platform according to claim 7, characterized in that: The surface of the ladder board is provided with anti-slip grooves for increasing friction, and movable shafts are provided at both ends of the ladder board. The movable shafts extend to the surface of the slide rod and are flush with the surface of the slide rod. The surface of the ladder board is provided with a support plate for increasing connection stability.

9. The foldable and retractable pedal platform according to claim 1, characterized in that: One end of the first telescopic ladder and the second telescopic ladder are both top blocks, and the surfaces of the first folding ladder body and the second folding ladder body are both provided with limiting plates for limiting the position of the top blocks.

10. The foldable and retractable pedal platform according to claim 1, characterized in that: The surfaces of the first folding ladder body and the second folding ladder body are both provided with reinforcing ribs, the surfaces of the first telescopic ladder body and the second telescopic ladder body are both provided with adjustment holes, and the surfaces of the first folding ladder body and the second folding ladder body are both provided with fixing screws for limiting the position of the adjustment holes.

11. The foldable and retractable pedal platform according to claim 1, characterized in that: A connecting plate is installed on the surface of the second telescopic ladder, a locking screw is connected to the surface of the connecting plate, and a fixing plate matched with the locking screw is installed on the surface of the first telescopic ladder.

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