Plane pushing auxiliary device of stair climbing machine

Abstract

The utility model discloses a stair climbing machine plane pushing auxiliary device which comprises a stair climbing machine, the stair climbing machine comprises a vehicle frame, a speed reducer and a pushing auxiliary device, the lower portion of the vehicle frame is fixedly connected with the pushing auxiliary device, one end of the pushing auxiliary device is fixedly connected with the vehicle frame, and the other end of the pushing auxiliary device is fixedly connected with the speed reducer. The other end of the pushing auxiliary device is rotationally connected with a speed reducer, the speed reducer comprises a speed reducer output shaft, and the speed reducer output shaft is rotationally connected with the pushing auxiliary device; the pushing auxiliary device comprises a fixing block, a supporting arm and a connecting assembly. The connecting assembly comprises positioning rods, the positioning rods are arranged at the two ends of the connecting assembly, arc-shaped protrusions are arranged on the surfaces of the positioning rods, the arc-shaped protrusions of the positioning rods are embedded into the arc-shaped grooves of the first sliding groove and the arc-shaped grooves of the second sliding groove, and the positioning rods slide in the first sliding groove and the second sliding groove. The device has the characteristics of high practicability and convenience in operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stair -climbing machine auxiliary device technical field, concretely is a stair -climbing machine plane pushes along auxiliary device. BACKGROUND

[0002] In logistics, construction and daily life, as a mechanical equipment that can assist people to carry heavy objects up and down stairs, the importance of stair -climbing machine is increasingly prominent. With the progress of technology, the design of stair -climbing machine is continuously optimized, aims at improving the carrying efficiency, reducing the physical burden of operator, and ensuring the safety of operation, however, the existing stair -climbing machine still has some deficiencies when being pushed on the plane,

[0003] The traditional stair -climbing machine design often focuses on its stair -climbing function, and ignores the convenience and stability when being pushed on the plane, when needing to push the stair -climbing machine on the plane for a long distance, the operator can feel tired, and the instability of the stair -climbing machine can lead to safety hazards, in order to solve these problems, some stair -climbing machines begin to be equipped with pushing auxiliary devices to provide additional support and thrust, help the operator to be more relaxed and stable when being pushed on the plane,

[0004] However, the existing pushing auxiliary device mostly adopts fixed connection mode, cannot be flexibly adjusted according to the needs of the operator and the changes of pushing environment, for example, when the pushing environment is relatively spacious, the operator can hope that the pushing auxiliary device can be unfolded to provide larger support area and stability, while in the narrow environment, the pushing auxiliary device can need to be shrunk to avoid hindering operation or causing damage, in addition, the operation of some pushing auxiliary devices is complex during unfolding and shrinking, is not convenient enough, which influences the use experience of the operator,

[0005] Therefore, a stair -climbing machine plane pushing auxiliary device is provided to solve the problem of complex operation and inconvenience of the traditional stair -climbing machine plane pushing auxiliary device. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a stair -climbing machine plane pushing auxiliary device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problem, the utility model provides the following technical scheme: a stair -climbing machine plane pushing auxiliary device, including the stair -climbing machine, the stair -climbing machine includes the frame, the speed reducer and the pushing auxiliary device, the lower of frame is fixedly connected with the pushing auxiliary device, one end of the pushing auxiliary device is fixedly connected with the frame, the other end of the pushing auxiliary device is rotatably connected with the speed reducer, the speed reducer includes the speed reducer output shaft, the speed reducer output shaft is rotatably connected with the pushing auxiliary device;

[0008] The pushing auxiliary device includes the fixed block, the support arm and the connecting assembly,

[0009] The connecting assembly comprises a positioning rod, the positioning rod is at both ends of the connecting assembly, the surface of the positioning rod is provided with an arc-shaped protrusion, the arc-shaped protrusion of the positioning rod is embedded with the arc-shaped grooves of the sliding groove one and the sliding groove two, and the positioning rod slides inside the sliding groove one and the sliding groove two.

[0010] The connecting assembly further comprises a fixing rod, the top of the fixing rod is fixedly connected with the positioning rod, the main body of the fixing rod is a cylindrical shell structure and is open at the bottom, the inner wall of the positioning rod is circumferentially arrayed with a plurality of limiting grooves with the center as the reference point, each limiting groove is provided with a limiting block, the limiting block slides in the limiting groove, the limiting groove comprises a longitudinal groove and a turning groove, the longitudinal groove is used for limiting the vertical sliding of the limiting block, the turning groove is used for limiting the rotation of the limiting block relative to the fixing rod while the limiting block slides up and down, and the two ends of the turning groove are communicated with the bottoms of the adjacent longitudinal grooves.

[0011] The connecting assembly further comprises a limiting tooth, the main body of the limiting tooth is a cylindrical structure, the outer wall of the limiting tooth is fixedly connected with a plurality of the limiting blocks, a plurality of tooth one are fixed on the upper bottom surface of the limiting tooth, the tooth one is circumferentially arrayed with the center of the limiting tooth as the reference point, there is a tooth groove one between two adjacent tooth one, and an opening is formed at the top end of the tooth one; a dislocation tooth is fixedly connected inside the fixing rod, the main body structure of the dislocation tooth is a cylinder, one end of the dislocation tooth is fixedly connected with the fixing rod, a plurality of tooth two are fixed at the other end of the dislocation tooth, the tooth two is circumferentially arrayed with the center of the cross section of the dislocation tooth as the reference point, there is a tooth groove two between two adjacent tooth two, the tooth two is gap-fitted with the opening of the tooth one, the width of the tooth two is equal to the width of the tooth groove one, and the width of the tooth one is equal to the width of the tooth groove two.

[0012] According to the above technical scheme, the fixing block is fixedly connected with the frame.

[0013] According to the above technical scheme, the supporting arm comprises a side plate and a bottom plate, a universal wheel is fixedly connected below the bottom plate, and the universal wheel is used for assisting the device to move on a plane.

[0014] The side plate is fixedly connected at both sides of the bottom plate, the side plate comprises two parts, one part of the side plate is connected with the bottom plate, the other part of the side plate is inclined upward relative to the bottom plate, a connecting hole one is formed in the surface of the side plate, the connecting hole one is rotationally connected with the reducer output shaft, the connecting hole one is located in the upward inclined part of the side plate, a connecting hole two is formed in the surface of the other part of the side plate, a pin shaft one is fixedly connected in the connecting hole two, a connecting rod one is fixedly connected on the pin shaft one, and the connecting rod one is rotationally connected with the support arm through the pin shaft one.

[0015] According to the above technical scheme, one end of the connecting rod one is rotationally connected with the support arm, a rotating hole one is formed in the surface of the other end of the connecting rod one, a pin shaft two is rotationally connected in the connecting hole one, a connecting rod two is fixedly connected on the pin shaft two, the connecting rod two is fixedly connected with the connecting rod one through the pin shaft two, there is a certain distance between the connecting rod one and the connecting rod two, one end of the connecting rod two is rotationally connected with the connecting rod one, a rotating hole two is formed in the surface of the other end of the connecting rod two, a pin shaft three is rotationally connected in the rotating hole two, an ear plate is fixedly connected on the pin shaft three, the ear plate is fixedly connected below the fixed block.

[0016] A spring is fixedly connected on the pin shaft one, one end of the spring is fixedly connected with the pin shaft one, and the other end of the spring is fixedly connected with the pin shaft three.

[0017] According to the above technical scheme, a sliding groove one is formed in the surface of the side close to the connecting rod two, a sliding groove two is formed in the surface of the side close to the connecting rod one, arc-shaped grooves are formed on the inner walls of the sliding groove one and the sliding groove two, one end of the connecting assembly is embedded and slides in the sliding groove one, and the other end of the connecting assembly is embedded and slides in the sliding groove two.

[0018] According to the above technical scheme, one end of the limiting tooth is fixedly connected with a tooth one, the other end of the limiting tooth is fixedly connected with a bent rod, and the two ends of the bent rod are fixedly connected with the limiting tooth.

[0019] Compared with the prior art, the utility model has the advantages that,

[0020] (1) By setting up the support and connecting the fixed block and the connecting assembly, the switching of the plane pushing and the climbing mode is realized.

[0021] (2) By setting up the limiting tooth and the staggered tooth, the locking and unlocking functions of the connecting assembly are realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, which are used together with embodiments of the present application to explain the present application, and do not constitute a limitation to the present application. In the drawings:

[0023] Figure 1 is a whole structure schematic view of an embodiment of the present application;

[0024] Figure 2 is an A area enlarged schematic view of an embodiment of the present application; Figure 1

[0025] Figure 3 is a structure schematic view of a support arm of an embodiment of the present application;

[0026] Figure 4 is a connection assembly connection structure schematic view of an embodiment of the present application;

[0027] Figure 5 is a reverse side schematic view of an embodiment of the present application; Figure 4

[0028] Figure 6 is a cross-sectional view of an embodiment of the present application; Figure 5

[0029] Figure 7 is a fixed rod internal structure schematic view of an embodiment of the present application;

[0030] Figure 8 is a connection assembly schematic view of an embodiment of the present application;

[0031] Figure 9 is a fixed rod connection structure schematic view of an embodiment of the present application;

[0032] In the drawings: 1, an escalator; 101, a vehicle frame; 102, a speed reducer;

[0033] 2, a pushing auxiliary device; 201, a fixed block; 202, a support arm; 20201, a side plate; 20202, a bottom plate; 20203, a first connection hole; 20204, a second connection hole; 203, a first connecting rod; 204, a second connecting rod; 205, an ear plate; 206, a spring; 207, a first pin shaft; 208, a third pin shaft; 209, a universal wheel; 210, a first sliding groove; 211, a second sliding groove; 212, a connection assembly; 2121, a positioning rod; 2122, a fixed rod; 2123, staggered teeth; 2124, a bent rod; 2125, a limiting tooth; 2126, a limiting rod; 2127, a limiting block; 2128, a limiting groove; 21281, a longitudinal groove; 21282, a turning groove. DETAILED DESCRIPTION ​​​

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] Please refer to Figures 1-9 The utility model provides technical scheme: a plane pushing auxiliary device of stair -climbing machine, including stair -climbing machine 1.

[0036] As Figure 1 Indicated, in certain embodiments, stair -climbing machine 1 includes frame 101, reduction gear 102 and pushing auxiliary device 2, and the lower portion of frame 101 is fixedly connected with pushing auxiliary device 2, one end of pushing auxiliary device 2 is fixedly connected with frame 101, the other end of pushing auxiliary device 2 is rotatably connected with reduction gear 102, and reduction gear 102 includes reduction gear output shaft, and the reduction gear output shaft is rotatably connected with pushing auxiliary device 2.

[0037] As Figures 1-3 Indicated, in certain embodiments, pushing auxiliary device 2 includes fixed block 201, support arm 202 and connecting assembly 212, and fixed block 201 is fixedly connected with frame 101.

[0038] As Figure 3 Indicated, in certain embodiments, support arm 202 includes side plate 20201 and bottom plate 20202, and the lower portion of bottom plate 20202 is fixedly connected with universal wheel 209, and universal wheel 209 is used to assist the pushing of the device on the plane.

[0039] The side plate 20201 is fixedly connected on both sides of the bottom plate 20202, and the side plate 20201 includes two parts, one part of the side plate 20201 is connected with the bottom plate 20202, and the other part of the side plate 20201 is inclined upward relative to the bottom plate 20202, and the surface of the side plate 20201 is provided with connecting hole one 20203, and the connecting hole one 20203 is rotatably connected with the reduction gear output shaft, and the connecting hole one 20203 is located in the upward inclined part of the side plate 20201, and the surface of the other part of the side plate 20201 is provided with connecting hole two 20204, and the inside of the connecting hole two 20204 is fixedly connected with pin shaft one 207, and pin shaft one 207 is fixedly connected with connecting rod one 203, and connecting rod one 203 is rotatably connected with support arm 202 through pin shaft one 207.

[0040] As Figure 2As shown, in some embodiments, one end of connecting rod 203 is rotatably connected to support arm 202, and the other end of connecting rod 203 has a rotating hole 1. A pin 2 is rotatably connected inside connecting hole 203, and connecting rod 204 is fixedly connected to pin 2. Connecting rod 204 is fixedly connected to connecting rod 203 through pin 2. There is a certain distance between connecting rod 203 and connecting rod 204. One end of connecting rod 204 is rotatably connected to connecting rod 203, and the other end of connecting rod 204 has a rotating hole 2. A pin 3 208 is rotatably connected inside rotating hole 2, and ear plate 205 is fixedly connected to pin 3 208. Ear plate 205 is fixedly connected to connecting rod 204 through pin 3 208. Ear plate 205 is fixedly connected below fixing block 201.

[0041] A spring 206 is fixedly connected to the first pin 207. One end of the spring 206 is fixedly connected to the first pin 207, and the other end of the spring 206 is fixedly connected to the third pin 208.

[0042] like Figures 4-6 As shown, in some embodiments, a sliding groove 210 is provided on the surface of the connecting rod 203 near the connecting rod 204, and a sliding groove 211 is provided on the surface of the connecting rod 204 near the connecting rod 203. The inner walls of the sliding groove 210 and the sliding groove 211 are expanded with arc-shaped grooves. One end of the connecting component 212 is embedded and slides inside the sliding groove 210, and the other end of the connecting component 212 is embedded and slides inside the sliding groove 211.

[0043] like Figure 6 As shown, in some embodiments, the connecting assembly 212 includes a positioning rod 2121 at both ends of the connecting assembly 212. The surface of the positioning rod 2121 is provided with an arc-shaped protrusion. The arc-shaped protrusion of the positioning rod 2121 is engaged with the arc-shaped grooves of the sliding groove 1 210 and the sliding groove 211. The positioning rod 2121 slides inside the sliding groove 1 210 and the sliding groove 211.

[0044] like Figure 7 and Figure 8As shown in the figure, in some embodiments, the connecting assembly 212 further comprises a fixed rod 2122, the top of which is fixedly connected with the positioning rod 2121, the main body of the fixed rod 2122 is a cylindrical shell structure and is open at the bottom, the inner wall of the positioning rod 2121 is circumferentially arrayed with a plurality of limiting grooves 2128 with the center as the reference point, each limiting groove 2128 is provided with a limiting block 2127, the limiting block 2127 slides in the limiting groove 2128, the limiting groove 2128 comprises a longitudinal groove 21281 and a turning groove 21282, the longitudinal groove 21281 is used to limit the vertical sliding of the limiting block 2127, and the turning groove 21282 is used to limit the rotation of the limiting block 2127 relative to the fixed rod 2122 while sliding up and down, and the two ends of the turning groove 21282 are communicated with the bottom of the adjacent longitudinal groove 21281.

[0045] As shown in the figure, in some embodiments, the connecting assembly 212 further comprises a fixed rod 2122, the top of which is fixedly connected with the positioning rod 2121, the main body of the fixed rod 2122 is a cylindrical shell structure and is open at the bottom, the inner wall of the positioning rod 2121 is circumferentially arrayed with a plurality of limiting grooves 2128 with the center as the reference point, each limiting groove 2128 is provided with a limiting block 2127, the limiting block 2127 slides in the limiting groove 2128, the limiting groove 2128 comprises a longitudinal groove 21281 and a turning groove 21282, the longitudinal groove 21281 is used to limit the vertical sliding of the limiting block 2127, and the turning groove 21282 is used to limit the rotation of the limiting block 2127 relative to the fixed rod 2122 while sliding up and down, and the two ends of the turning groove 21282 are communicated with the bottom of the adjacent longitudinal groove 21281. Figure 9 As shown in the figure, in some embodiments, the connecting assembly 212 further comprises a fixed rod 2122, the top of which is fixedly connected with the positioning rod 2121, the main body of the fixed rod 2122 is a cylindrical shell structure and is open at the bottom, the inner wall of the positioning rod 2121 is circumferentially arrayed with a plurality of limiting grooves 2128 with the center as the reference point, each limiting groove 2128 is provided with a limiting block 2127, the limiting block 2127 slides in the limiting groove 2128, the limiting groove 2128 comprises a longitudinal groove 21281 and a turning groove 21282, the longitudinal groove 21281 is used to limit the vertical sliding of the limiting block 2127, and the turning groove 21282 is used to limit the rotation of the limiting block 2127 relative to the fixed rod 2122 while sliding up and down, and the two ends of the turning groove 21282 are communicated with the bottom of the adjacent longitudinal groove 21281.

[0046] When the connecting assembly 212 is to be unfolded, the limiting tooth 2125 is slid downward in the fixed rod 2122, the limiting block 2127 slides in the longitudinal groove 21281, when the limiting block 2127 slides to the turning groove 21282, the top ends of the tooth 1 and the tooth 2 are on the same horizontal plane, the limiting tooth 2125 is continuously slid downward, the limiting block 2127 slides downward while driving the limiting tooth 2125 to rotate in the fixed rod 2122, when the limiting block 2127 slides to the bottom of the turning groove 21282, the limiting tooth 2125 is slid upward, when the tooth 1 and the tooth 2 cooperate, the limiting block 2127 is just at the highest position of the turning groove 21282.

[0047] When the connecting assembly 212 is to be retracted, the limiting tooth 2125 is slid upward in the fixed rod 2122, the limiting block 2127 is slid downward in the turning groove 21282 for a distance to drive the limiting tooth 2125 to rotate, when the limiting block 2127 is slid to the bottom end of the turning groove 21282, the limiting tooth 2125 is slid upward, when the limiting block 2127 is rotated to the longitudinal groove 21281, the tooth one is equal to the tooth groove two in longitudinal position, the limiting block 2127 is slid upward in the longitudinal groove 21281, and the tooth one coincides with the tooth groove two.

[0048] As shown in Figure 8 some embodiments, one end of the limiting tooth 2125 is fixed with the tooth one, the other end of the limiting tooth 2125 is fixedly connected with the bent rod 2124, and both ends of the bent rod 2124 are fixedly connected with the limiting tooth 2125.

[0049] Working principle:

[0050] When the stair climbing machine 1 needs to be pushed on the plane, the staff pushes the support arm 202 with the foot, the support arm 202 is subjected to force and rotates relative to the reducer 102, the spring 206 becomes in a stretched state, the connecting rod one 203 and the connecting rod two 204 rotate relative to each other, the positioning rod 2121 extends from the inside of the fixed rod 2122, the limiting block 2127 slides in the upper part of the limiting groove 2128, the tooth two of the limiting tooth 2125 slides downward from between the tooth one of the staggered tooth 2123, when the limiting tooth 2125 is completely separated from the staggered tooth 2123, the limiting block 2127 just slides to the lower part of the limiting groove 2128, when the limiting block 2127 reaches the lowest end of the limiting groove 2128, the staff releases the foot, the support arm 202 rotates to the direction of the vehicle frame 101 under the action of the spring 206, the positioning rod 2121 rotates relative to the connecting rod one 203 and the connecting rod two 204, the positioning rod 2121 is retracted into the fixed rod 2122, the limiting block 2127 slides in the inside of the limiting groove 2128, the limiting block 2127 slides in the upwardly inclined part of the lower part of the limiting groove 2128, the limiting block 2127 drives the limiting tooth 2125 to rotate, when the top end of the tooth two of the limiting tooth 2125 contacts the bottom end of the tooth one of the staggered tooth 2123, the tooth one engages with the tooth two, the connecting assembly 212 is fixed, the connecting assembly 212 fixes the connecting rod one 203 and the connecting rod two 204, and the connecting rod one 203 and the connecting rod two 204 fix the support arm 202.

[0051] When the stair climbing machine 1 needs to climb stairs, the staff positions the rod 2121 by stepping on the support arm 202, the limiting block 2127 slides downward in the lower part of the limiting slot 2128, when the limiting block 2127 reaches the bottom end of the limiting slot 2128, the staff withdraws the foot, the limiting block 2127 drives the limiting gear teeth 2125 to rotate and slide upward, when the limiting block 2127 slides to the upper part of the limiting slot 2128, the gear teeth two of the limiting gear teeth 2125 are between two adjacent gear teeth two of the staggered gear teeth 2123, the limiting block 2127 slides upward in the upper part of the limiting slot 2128, when the top end of the limiting rod 2126 contacts the bottom of the staggered gear teeth 2123, the support arm 202 is parallel to the frame 101.

[0052] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0053] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to make equivalent replacement for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A stair climbing machine plane pushing auxiliary device, comprising a stair climbing machine (1), characterized in that: the stair climbing machine (1) comprises a frame (101), a reducer (102) and a pushing auxiliary device (2), the lower part of the frame (101) is fixedly connected with the pushing auxiliary device (2), one end of the pushing auxiliary device (2) is fixedly connected with the frame (101), the other end of the pushing auxiliary device (2) is rotatably connected with the reducer (102), the reducer (102) comprises a reducer output shaft, and the reducer output shaft is rotatably connected with the pushing auxiliary device (2); the pushing auxiliary device (2) comprises a fixed block (201), a support arm (202) and a connecting assembly (212); the connecting assembly (212) comprises a positioning rod (2121), the positioning rod (2121) is arranged at both ends of the connecting assembly (212), the surface of the positioning rod (2121) is provided with an arc-shaped protrusion, the arc-shaped protrusion of the positioning rod (2121) is embedded in arc-shaped grooves of a sliding groove one (210) and a sliding groove two (211), and the positioning rod (2121) slides in the sliding groove one (210) and the sliding groove two (211); the connecting assembly (212) further comprises a fixed rod (2122), the top of the fixed rod (2122) is fixedly connected with the positioning rod (2121), the main body of the fixed rod (2122) is in a cylindrical shell structure and is open at the bottom, the inner wall of the positioning rod (2121) is circularly arrayed with a plurality of limiting grooves (2128) with a center as a reference point, each limiting groove (2128) is provided with a limiting block (2127), the limiting block (2127) slides in the limiting groove (2128), the limiting groove (2128) comprises a longitudinal groove (21281) and a turning groove (21282), the longitudinal groove (21281) is used for limiting the limiting block (2127) to slide in the vertical direction, the turning groove (21282) is used for limiting the limiting block (2127) to slide up and down while rotating relative to the fixed rod (2122), and the two ends of the turning groove (21282) are communicated with the bottoms of the adjacent longitudinal grooves (21281). The connecting assembly (212) further comprises a limiting tooth (2125), the main body of the limiting tooth (2125) is a cylindrical structure, the outer wall of the limiting tooth (2125) is fixedly connected with a plurality of limiting blocks (2127), a plurality of tooth one is fixed on the upper bottom surface of the limiting tooth (2125), the tooth one is circumferentially arranged with the center of the limiting tooth (2125) as the reference point, there is a tooth groove one between two adjacent tooth one, and an opening is formed at the top end of the tooth one; the fixed rod (2122) is fixedly connected with a staggered tooth (2123) inside, the main body structure of the staggered tooth (2123) is a cylinder, one end of the staggered tooth (2123) is fixedly connected with the fixed rod (2122), and a plurality of tooth two is fixed at the other end of the staggered tooth (2123), the tooth two is circumferentially arranged with the center of the cross section of the staggered tooth (2123) as the reference point, there is a tooth groove two between two adjacent tooth two, the tooth two is in clearance fit with the opening of the tooth one, the width of the tooth two is equal to the width of the tooth groove one, and the width of the tooth one is equal to the width of the tooth groove two.

2. A stair climbing machine planar pushing assistance device according to claim 1, characterized in that: The fixed block (201) is fixedly connected with the vehicle frame (101).

3. A stair climbing machine planar pushing assistance device according to claim 2, characterized in that: The support arm (202) comprises a side plate (20201) and a bottom plate (20202), a universal wheel (209) is fixedly connected below the bottom plate (20202), and the universal wheel (209) is used for assisting the device to move on a plane; The side plate (20201) is fixedly connected on both sides of the bottom plate (20202), the side plate (20201) comprises two parts, one part of the side plate (20201) is connected with the bottom plate (20202), and the other part of the side plate (20201) is inclined upward relative to the bottom plate (20202), a connecting hole one (20203) is formed in the surface of the side plate (20201), the connecting hole one (20203) is rotatably connected with the reducer output shaft, the connecting hole one (20203) is located in the upward inclined part of the side plate (20201), a connecting hole two (20204) is formed in the surface of the other part of the side plate (20201), a pin shaft one (207) is fixedly connected in the connecting hole two (20204), a connecting rod one (203) is fixedly connected on the pin shaft one (207), and the connecting rod one (203) is rotatably connected with the support arm (202) through the pin shaft one (207).

4. A stair climbing machine planar pushing assistance device according to claim 3, characterized in that: One end of the connecting rod one (203) is rotatably connected with the support arm (202), the other end surface of the connecting rod one (203) is provided with a rotating hole one, the inside of the connecting hole one (20203) is rotatably connected with a pin shaft two, the pin shaft two is fixedly connected with a connecting rod two (204), the connecting rod two (204) is fixedly connected with the connecting rod one (203) through the pin shaft two, the connecting rod one (203) and the connecting rod two (204) are at a certain distance, one end of the connecting rod two (204) is rotatably connected with the connecting rod one (203), the other end surface of the connecting rod two (204) is provided with a rotating hole two, the inside of the rotating hole two is rotatably connected with a pin shaft three (208), the pin shaft three (208) is fixedly connected with an ear plate (205), the ear plate (205) is fixedly connected with the connecting rod two (204) through the pin shaft three (208), the ear plate (205) is fixedly connected below the fixed block (201); The pin shaft one (207) is fixedly connected with a spring (206), one end of the spring (206) is fixedly connected with the pin shaft one (207), the other end of the spring (206) is fixedly connected with the pin shaft three (208).

5. A stair climbing machine planar pushing assistance device according to claim 4, characterized in that: The surface of the connecting rod one (203) near one side of the connecting rod two (204) is provided with a sliding groove one (210), the surface of the connecting rod two (204) near one side of the connecting rod one (203) is provided with a sliding groove two (211), the inner wall of the sliding groove one (210) and the sliding groove two (211) is outwardly expanded with an arc-shaped groove, one end of the connecting assembly (212) is embedded and slides in the inside of the sliding groove one (210), the other end of the connecting assembly (212) is embedded and slides in the inside of the sliding groove two (211).

6. A stair climbing machine flat pushing assistance device according to claim 5, wherein: One end of the limiting tooth (2125) is fixedly connected with a tooth one, the other end of the limiting tooth (2125) is fixedly connected with a bent rod (2124), the two ends of the bent rod (2124) are fixedly connected with the limiting tooth (2125).

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