Split type supporting device for new energy semitrailer

Abstract

The split type supporting device for the new energy semitrailer comprises outer supporting legs and a power shaft, power switching mechanisms are arranged at the two ends of the power shaft, when the split type supporting device is used on an uneven road surface, if one bottom plate and the ground are tightly supported together firstly, a second ejector rod corresponding to the bottom plate can move upwards, and the second ejector rod can move downwards; under the action of a second ejector rod, a frustum drives a limiting shell to be separated from a limiting block and a second bevel gear, so that power to the second bevel gear is cut off, it is guaranteed that a bottom plate making contact with the ground does not move downwards, and meanwhile it is guaranteed that another bottom plate not making contact with the ground can continue to move downwards; and the two bottom plates are tightly attached to the ground, so that the device can be used on an uneven road surface, the applicability of the device is improved, meanwhile, the device is convenient to use by workers, and a base plate with a proper height does not need to be found.

Description

Technical Field

[0001] The present invention relates to the technical field of semi-trailers, and in particular to a split support device for a new energy semi-trailer. Background Art

[0002] New energy semi-trailers refer to semi-trailers driven by new energy technologies, including electricity, water hydrogen, solar energy, etc. as power sources. Compared with traditional fuel semi-trailers, new energy semi-trailers are environmentally friendly, economical, and efficient. They are one of the important means to solve traffic exhaust emissions and improve air quality. New energy vehicles are still very similar to traditional vehicles. The semi-trailer structure used in existing new energy vehicles is roughly the same as the semi-trailer structure used in traditional vehicles. Outriggers are set at the bottom. The main function of the semi-trailer outriggers is to support the semi-trailer and ensure its stability and safety when parking or operating. The semi-trailer outriggers include linkage outriggers.

[0003] The linkage type outrigger has only one gear box, and the left and right outriggers can be controlled to rise and fall at the same time through a crank handle. The linkage type outrigger has a high lifting efficiency, but is only suitable for flat roads, has low applicability, and cannot be used on uneven roads. When it needs to be used on uneven roads, it is necessary to place pads at the bottom of the outriggers separately, which is troublesome to operate. Moreover, due to the existence of uneven roads, it is not easy to find pads of suitable height to make the left and right outriggers flush, which brings certain difficulties to users. Therefore, in view of the above problems, a split support device for a new energy semi-trailer is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A split supporting device for a new energy semi-trailer comprises an outer leg and a power shaft, both ends of the power shaft are rotatably connected to the outer leg, the inner side of the outer leg is slidably connected to the inner leg, the bottom end of the inner leg is fixedly connected to a limiting plate, the lower side of the limiting plate is provided with a bottom plate, the inner side of the outer leg is fixedly connected to a fixing plate, the inner side of the fixing plate is rotatably connected to a screw, the outer side of the screw is spirally connected to a connecting plate, and the connecting plate is fixedly connected to the inner leg, the top end of the screw is fixedly connected to a first bevel gear, both ends of the power shaft are provided with a power switching mechanism, one end of the outer leg is fixedly connected to a connecting shell, the inner side of the connecting shell is provided with a reminder adjustment mechanism, one end of one of the outer legs is fixedly connected to a gear box, and one end of the gear box is provided with a marking mechanism.

[0006] Preferably, the power switching mechanism includes a limit block fixedly connected to the power shaft, the outer side of the limit block is slidably connected to a limit shell, the outer side of the limit shell is fixedly connected with a frustum and a limit ring, and the frustum is fixedly connected to the limit ring, the outer side of the limit shell is slidably connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear, a first fixed component is provided at one end of the second bevel gear, and a second fixed component is provided on the outer side of the limit shell.

[0007] Preferably, the first fixed assembly includes a first bearing fixedly connected to the second bevel gear, a first swivel is fixedly connected to the outer side of the first bearing, a first connecting rod is fixedly connected to the top end of the first swivel, and the first connecting rod is fixedly connected to the outer leg.

[0008] Preferably, the second fixed assembly includes a second bearing fixedly connected to the limit shell, a second swivel is fixedly connected to the outer side of the second bearing, a third connecting rod is fixedly connected to the top of the second swivel, a guide shaft is slidably connected to the inner side of the third connecting rod, one end of the guide shaft is fixedly connected to the second connecting rod, and the second connecting rod is fixedly connected to the outer leg.

[0009] Preferably, the reminder adjustment mechanism includes a side plate fixedly connected to the inner leg, one end of the side plate is fixedly connected to a connecting tube, the top of the connecting tube is fixedly connected to a movable frame, and the movable frame is slidably connected to the connecting shell, the inner side of the top of the movable frame is slidably connected to a second push rod, and the top of the second push rod is set in a wedge-shaped surface, the bottom end of the second push rod is fixedly connected to a chuck, one end of the chuck is engaged with a buckle assembly, a third spring is set on the outer side of the second push rod, and the two ends of the third spring are respectively fixedly connected to the movable frame and the chuck.

[0010] Preferably, the buckle assembly includes a vertical plate fixedly connected to the movable frame, a clamping block is slidably connected to the inner side of the vertical plate, and the clamping block is engaged with the chuck, one end of the clamping block is fixedly connected to a guide plate, and the guide plate is slidably connected to the vertical plate, one end of the guide plate is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to the vertical plate.

[0011] Preferably, a first push rod is movably provided at one end of the guide plate, and the first push rod is slidably connected to the limit plate, the bottom end of the first push rod is fixedly connected to the bottom plate, a baffle plate is fixedly connected to the outer side of the first push rod, a first spring is provided on the outer side of the first push rod, and both ends of the first spring are respectively fixedly connected to the connecting tube and the baffle plate.

[0012] Preferably, one end of the chuck is fixedly connected to a lever, and the lever is slidably connected to the connecting shell, one end of the connecting shell is fixedly connected to an ear plate, and the top end of the ear plate is rotatably connected to a stop rod.

[0013] Preferably, the marking mechanism includes an iron ring fixedly connected to the gear box, a magnet is magnetically attracted to the outer side of the iron ring, a positioning pin is fixedly connected to the outer side of the magnet, a pointer is provided on one side of the positioning pin, and the pointer is fixedly connected to the power shaft.

[0014] Preferably, a rotating shaft is movably provided on the inner side of the gear box, a first gear and a second gear are fixedly connected to the outer side of the rotating shaft, a third gear and a fourth gear are fixedly connected to the outer side of the power shaft, and the third gear can mesh with the second gear, the first gear can mesh with the fourth gear, and one end of the rotating shaft is rotatably connected to a crank.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. A split supporting device for a new energy semi-trailer, through the set limit block, second swivel ring, second bearing, limit shell, cone, and second push rod; when the second bevel gear needs to rotate with the first bevel gear, the limit shell moves to between the second bevel gear and the limit block, and the power shaft will rotate with the second bevel gear through the limit block and the limit shell. When used on an uneven road surface, if one of the bottom plates is first tightly supported with the ground, the corresponding second push rod will move upward, and under the action of the second push rod, the cone will separate the limit shell from the limit block and the second bevel gear, thereby cutting off the power to the second bevel gear, ensuring that the bottom plate that has contacted the ground will not move downward any further, and at the same time ensuring that the other bottom plate that has not contacted the ground can continue to move downward until the two bottom plates are tightly fitted together with the ground, so that the device can be used on uneven roads, thereby improving the applicability of the device and facilitating the use of the staff without having to find a pad of suitable height.

[0016] 2. A split supporting device for a new energy semi-trailer, through the provided connecting tube, the first push rod, the guide plate, the block, the chuck, and the second push rod, when the limit shell rotates normally with the second bevel gear, the block and the chuck are engaged together, and when the bottom plate is tightly fitted to the ground, the first push rod will separate the block from the chuck through the guide plate. At this time, under the pulling force of the third spring, the second push rod moves the cone along the power shaft through the wedge-shaped surface at the end, and the cone will also separate the limit shell from the limit block and the second bevel gear. When turning the crank, there is no need to manually separate the limit shell, the limit block and the second bevel gear, which is convenient for the staff to use. At the same time, when the second push rod collides with the cone, a sound will be made to remind the staff that the bottom plate is tightly fitted to the ground.

[0017] 3. A split support device for a new energy semi-trailer, through the provision of a pointer, an iron ring, a positioning pin, and a magnet. When the staff hears the sound of the second push rod colliding with the cone, the staff temporarily stops turning the crank handle. At this time, a positioning pin is fixed to the outside of the iron ring through a magnet, and the positioning pin and the pointer are pointed together. At this time, the position of the positioning pin indicates that the limit block at this position can be engaged with the limit shell, which is convenient for the subsequent re-engaging of the limit shell with the limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Figure 1 The figure is a schematic diagram of the overall structure of a split support device for a new energy semi-trailer according to the present invention.

[0020] Figure 2 The present invention is a schematic diagram of the internal installation structure of the outer legs of a split-type support device for a new energy semi-trailer.

[0021] Figure 3 The present invention is a schematic diagram of the internal structure of a gear box of a split support device for a new energy semi-trailer.

[0022] Figure 4 The present invention is a schematic diagram of the installation structure of a screw rod of a split-type supporting device for a new energy semi-trailer.

[0023] Figure 5 The figure is a schematic diagram of the installation structure of the first bevel gear of the split support device for a new energy semi-trailer of the present invention.

[0024] Figure 6 It is a schematic diagram of the cutaway structure of a limit shell of a split-type supporting device for a new energy semi-trailer according to the present invention.

[0025] Figure 7 The present invention is a schematic diagram of the installation structure of a second bearing of a split support device for a new energy semi-trailer.

[0026] Figure 8 The present invention is a schematic diagram of the installation structure of a first bearing of a split support device for a new energy semi-trailer.

[0027] Fig. 9 The present invention is a schematic diagram of the installation structure of a limit block of a split support device for a new energy semi-trailer.

[0028] Fig.10 The present invention is a schematic diagram of the installation structure of a lever of a split support device for a new energy semi-trailer.

[0029] Fig.11 The present invention is a schematic diagram of the installation structure when a clamping block and a chuck of a split-type supporting device for a new energy semi-trailer are engaged.

[0030] Fig.12 The present invention is a schematic diagram of the installation structure of a clamping block of a split-type supporting device for a new energy semi-trailer.

[0031] Fig.13 The present invention is a schematic diagram of the installation structure of a baffle plate of a split-type supporting device for a new energy semi-trailer.

[0032] Fig.14 The present invention is a schematic structural diagram of a first push rod of a split support device for a new energy semi-trailer.

[0033] Fig.15 A split support device for a new energy semi-trailer according to the present invention Figure 2 Schematic diagram of the structure at point A.

[0034] Fig.16 The present invention is a schematic diagram of the installation structure of a pointer of a split-type supporting device for a new energy semi-trailer.

[0035] Fig.17 The present invention is a schematic diagram of the installation structure of a magnet for a split-type supporting device of a new energy semi-trailer.

[0036] In the figure: 1, outer leg; 2, inner leg; 3, limit plate; 4, bottom plate; 5, connecting shell; 6, moving frame; 7, connecting plate; 8, fixed plate; 9, screw; 10, first bevel gear; 11, power shaft; 12, limit block; 13, second bevel gear; 14, first bearing; 15, first swivel; 16, first connecting rod; 17, second connecting rod; 18, third connecting rod; 19, guide shaft; 20, second swivel; 21, second bearing; 22, limit shell; 23, cone; 24, side plate; 25, connecting Cylinder; 26, first push rod; 27, baffle; 28, first spring; 29, vertical plate; 30, guide plate; 31, second spring; 32, block; 33, chuck; 34, second push rod; 35, third spring; 36, lever; 37, ear plate; 38, baffle; 39, gear box; 40, pointer; 41, iron ring; 42, positioning pin; 43, magnet; 44, rotating shaft; 45, crank; 46, first gear; 47, second gear; 48, third gear; 49, fourth gear; 50, limit ring. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with specific embodiments, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and should not be understood as limitations on this patent. In order to better illustrate the specific embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The present invention is further explained below in conjunction with specific implementation methods.

[0039] Example like Figure 1-17 As shown, a split supporting device for a new energy semi-trailer comprises an outer leg 1 and a power shaft 11, both ends of the power shaft 11 are rotatably connected with the outer leg 1, the outer leg 1 is fixed to the semi-trailer by bolts, the inner side of the outer leg 1 is slidably connected with the inner leg 2, the bottom end of the inner leg 2 is fixedly connected with a limiting plate 3, the lower side of the limiting plate 3 is provided with a bottom plate 4, the inner side of the outer leg 1 is fixedly connected with a fixing plate 8, the inner side of the fixing plate 8 is rotatably connected with a screw 9, the outer side of the screw 9 is spirally connected with a connecting plate 7, and the connecting plate 7 is fixedly connected to the inner leg 2, the top of the screw 9 is fixedly connected with a first bevel gear 10, both ends of the power shaft 11 are provided with a power switching mechanism, one end of the outer leg 1 is fixedly connected with a connecting shell 5, the inner side of the connecting shell 5 is provided with a reminder adjustment mechanism, one end of one of the outer legs 1 is fixedly connected with a gear box 39, and one end of the gear box 39 is provided with a marking mechanism.

[0040] As a further improvement of the present invention, Figure 1-9As shown, the power switching mechanism includes a limit block 12 fixedly connected to the power shaft 11, the outer side of the limit block 12 is slidably connected to the limit shell 22, the outer side of the limit shell 22 is fixedly connected with a frustum 23 and a limit ring 50, and the frustum 23 is fixedly connected to the limit ring 50, and the outer side of the limit shell 22 is slidably connected with a second bevel gear 13, and the second bevel gear 13 is meshed with the first bevel gear 10, one end of the second bevel gear 13 is provided with a first fixed component, and the outer side of the limit shell 22 is provided with a second fixed component. When the second bevel gear 13 is required to rotate with the first bevel gear 10, the limit shell 22 is moved between the second bevel gear 13 and the limit block 12, and the power shaft 11 will rotate with the second bevel gear 13 through the limit block 12 and the limit shell 22. When used on an uneven road surface, if one of the base plates 4 is first tightly supported with the ground, its corresponding reminder adjustment mechanism will move When the bottom plate 4 is in contact with the ground, the other bottom plate 4 can continue to move downward until the two bottom plates 4 are tightly fitted with the ground, so that the device can be used on uneven roads, thereby improving the applicability of the device and facilitating the use of the staff, without having to find a pad of suitable height; and the sliding contact part between the limit shell 22, the limit block 12 and the second bevel gear 13 can be provided with a ball according to actual design requirements, and the friction between the limit shell 22, the limit block 12 and the second bevel gear 13 is reduced by the ball, so as to facilitate the movement between the limit shell 22, the limit block 12 and the second bevel gear 13.

[0041] As a further improvement of the present invention, Figure 4 and Figure 5 As shown, the first fixed component includes a first bearing 14 fixedly connected to the second bevel gear 13, a first swivel 15 is fixedly connected to the outer side of the first bearing 14, and the first swivel 15 is rotatably connected to the second bevel gear 13, a first connecting rod 16 is fixedly connected to the top of the first swivel 15, and the first connecting rod 16 is fixedly connected to the outer leg 1, and the second bevel gear 13 can be supported and limited by the first bearing 14 and the first swivel 15 to ensure the normal operation of the second bevel gear 13.

[0042] As a further improvement of the present invention, Figure 4 and Figure 5As shown, the second fixed component includes a second bearing 21 fixedly connected to the limit shell 22, a second swivel 20 is fixedly connected to the outer side of the second bearing 21, a third connecting rod 18 is fixedly connected to the top of the second swivel 20, a guide shaft 19 is slidably connected to the inner side of the third connecting rod 18, one end of the guide shaft 19 is fixedly connected to the second connecting rod 17, and the second connecting rod 17 is fixedly connected to the outer leg 1. The limit shell 22 can be supported and limited by the second bearing 21 and the second swivel 20, and the normal movement of the limit 22 and the cone 23 in the horizontal direction can be guaranteed under the action of the guide shaft 19.

[0043] As a further improvement of the present invention, Figure 2 , Fig.10 , Fig.11 As shown, the reminder adjustment mechanism includes a side plate 24 fixedly connected to the inner leg 2, one end of the side plate 24 is fixedly connected to a connecting tube 25, the top of the connecting tube 25 is fixedly connected to a moving frame 6, and the moving frame 6 is slidably connected to the connecting shell 5, the inner side of the top of the moving frame 6 is slidably connected to a second push rod 34, and the top of the second push rod 34 is set in a wedge-shaped surface, the bottom end of the second push rod 34 is fixedly connected to a chuck 33, one end of the chuck 33 is engaged with a buckle assembly, the outer side of the second push rod 34 is provided with a third spring 35, and the two ends of the third spring 35 are respectively connected to the moving frame 6 and the chuck 33 The fixed connection is that when the buckle assembly releases the engagement of the chuck 33, the second push rod 34 moves the cone 23 along the power shaft 11 through the wedge-shaped surface at the end under the pulling force of the third spring 35. At the same time, the cone 23 will also separate the limit shell 22 from the limit block 12 and the second bevel gear 13. When the crank 45 is turned, there is no need to manually separate the limit shell 22 from the limit block 12 and the second bevel gear 13, which is convenient for the staff to use. At the same time, when the second push rod 34 collides with the cone 23, a sound will be made to remind the staff that the bottom plate 4 is tightly fitted to the ground.

[0044] As a further improvement of the present invention, Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the buckle assembly includes a vertical plate 29 fixedly connected to the movable frame 6, a clamping block 32 is slidably connected to the inner side of the vertical plate 29, and the clamping block 32 is engaged with the chuck 33, one end of the clamping block 32 is fixedly connected to a guide plate 30, and the guide plate 30 is slidably connected to the vertical plate 29, one end of the guide plate 30 is fixedly connected to a second spring 31, and the other end of the second spring 31 is fixedly connected to the vertical plate 29, the top end surface of the clamping block 32 is wedge-shaped, so that the chuck 33 can be engaged with the clamping block 32 when it moves downward, and the second spring 31 applies a pulling force to the guide plate 30, and the clamping limit of the chuck 33 can be achieved through the clamping block 32.

[0045] As a further improvement of the present invention, Figure 2 , Fig.13 and Fig.14 As shown, a first push rod 26 is movably provided at one end of the guide plate 30, and the first push rod 26 is slidably connected to the limit plate 3, the bottom end of the first push rod 26 is fixedly connected to the bottom plate 4, the outer side of the first push rod 26 is fixedly connected to a baffle 27, a first spring 28 is provided on the outer side of the first push rod 26, and the two ends of the first spring 28 are respectively fixedly connected to the connecting tube 25 and the baffle 27, the top end of the first push rod 26 is provided with a wedge-shaped surface adapted to the end face of the guide plate 30, when the first push rod 26 moves upward, the guide plate 30 can be separated from the chuck 33 with the block 32 under the squeezing of the first push rod 26.

[0046] As a further improvement of the present invention, Figure 2 and Figure 5 As shown, one end of the chuck 33 is fixedly connected to a lever 36, and the lever 36 is slidably connected to the connecting shell 5, and one end of the connecting shell 5 is fixedly connected to an ear plate 37, and the top of the ear plate 37 is rotatably connected to a stop rod 38. When it is necessary to retract the bottom plate 4 in contact with the ground, the staff moves the second push rod 34 downward through the lever 36 and the chuck 33, so that the second push rod 34 does not contact the cone 23, and then the staff pushes the cone 23, so that the cone 23 and the limit shell 22 are re-engaged with the limit block 12 and the second bevel gear 13, so that The power shaft 11 can drive the second bevel gear 13 to rotate, and when the second push rod 34 is not in contact with the cone 23, the blocking rod 38 is rotated to the top of the lever 36, and the lever 36 is limited by the blocking rod 38 to ensure that the second push rod 34 does not move upward. When the bottom plate 4 is completely retracted upward, the first push rod 26 will move downward under the elastic force of the first spring 28 to ensure that the block 32 can be normally engaged with the chuck 33, and then the chuck 33 is driven by the lever 36 to continue to move downward so that the chuck 33 is re-engaged with the block 32.

[0047] As a further improvement of the present invention, Figure 3 , Fig.16 and Fig.17 As shown, the marking mechanism includes an iron ring 41 fixedly connected to the gear box 39, a magnet 43 is magnetically attracted to the outer side of the iron ring 41, a positioning pin 42 is fixedly connected to the outer side of the magnet 43, a pointer 40 is provided on one side of the positioning pin 42, and the pointer 40 is fixedly connected to the power shaft 11. When the staff hears the sound of the second push rod 34 colliding with the cone 23, the staff temporarily stops turning the crank 45. At this time, a positioning pin 42 is fixed to the outer side of the iron ring 41 through the magnet 43, and the positioning pin 42 and the pointer 40 are pointed together. At this time, the position of the positioning pin 42 indicates that the limit block 12 at this position can be engaged with the limit shell 22, which is convenient for the limit shell 22 to be re-engaged with the limit block 12 later.

[0048] As a further improvement of the present invention, Figure 1 and Figure 3 As shown, a rotating shaft 44 is movably provided on the inner side of the gear box 39, a first gear 46 and a second gear 47 are fixedly connected to the outer side of the rotating shaft 44, a third gear 48 and a fourth gear 49 are fixedly connected to the outer side of the power shaft 11, and the third gear 48 can mesh with the second gear 47, the first gear 46 can mesh with the fourth gear 49, one end of the rotating shaft 44 is rotatably connected to a crank 45, and the rotation speed of the power shaft 11 can be adjusted by pulling the rotating shaft 44 to switch the positions of the first gear 46 and the second gear 47 back and forth. This part is the prior art and will not be described in detail here.

[0049] Working process: when the power shaft 11 needs to rotate, the staff rotates the first gear 46 and the second gear 47 through the crank 45. At this time, the first gear 46 and the second gear 47 rotate the power shaft 11 through the third gear 48 or the fourth gear 49. Then the power shaft 11 rotates the second bevel gear 13 through the limit block 12 and the limit shell 22. Then the second bevel gear 13 rotates spirally on the inner side of the connecting plate 7 through the first bevel gear 10 with the screw 9. At this time, the connecting plate 7 gradually moves downward with the inner leg 2. Then the inner leg 2 moves downward with the bottom plate 4 through the side plate 24, the connecting tube 25, and the first push rod 26. At the same time, the connecting tube When the inner leg 2 moves to the maximum stroke, the third spring 35 can still bring the second push rod 34 to push the cone 23 horizontally open. When used on an uneven road surface, if one of the bottom plates 4 is first tightly supported with the ground, and the bottom plate 4 is tightly fitted with the limiting plate 3, during the process of the bottom plate 4 and the limiting plate 3 being fitted together, the bottom plate 4 will also bring the first push rod 26 to move upward, and the first push rod 34 can also be designed according to actual design requirements. The rod 26 will also squeeze the guide plate 30, so that the guide plate 30 and the clamping block 32 are separated from the chuck 33. At this time, under the pulling force of the third spring 35, the second push rod 34 uses the wedge-shaped surface at the end to move the cone 23 along the power shaft 11 away from the corresponding second bevel gear 13 until the side of the second push rod 34 fits together with the side of the limiting ring 50. The friction between the second push rod 34, the limiting ring 50 and the cone 23 can prevent the cone 23 and the limiting shell 22 from rotating at will, ensuring that the limiting shell 22 and the second bevel gear 13 are in an aligned position. At the same time, the cone 23 will also move the limiting shell 22 with the limiting block 12 and the second bevel gear 13. The wheels 13 are separated, and after the limiting shell 22 is separated from the limiting block 12, the limiting block 12 will not rotate with the limiting shell 22 when rotating, and the limiting shell 22 will not rotate with the corresponding second bevel gear 13, thereby cutting off the power shaft 11 to the second bevel gear 13, ensuring that the bottom plate 4 that has already contacted the ground will not move downward, and at the same time ensuring that the other bottom plate 4 that has not contacted the ground can continue to move downward until the two bottom plates 4 are tightly attached to the ground, so that the device can be used on uneven roads, thereby improving the applicability of the device and facilitating the use of the staff, without having to find a pad of suitable height;At the same time, when the second push rod 34 collides with the cone 23, a sound will also be made, reminding the staff that the bottom plate 4 is tightly attached to the ground. When the staff hears the sound of the collision, the staff first stops turning the crank 45. When the staff hears the sound of the second push rod 34 colliding with the cone 23, the staff temporarily stops turning the crank 45. At this time, a positioning pin 42 is fixed to the outside of the iron ring 41 through a magnet 43, and the positioning pin 42 and the pointer 40 are pointed together. At this time, the position of the positioning pin 42 indicates that the limit block 12 at this position can be engaged with the limit shell 22, which is convenient for the limit shell 22 to be re-engaged with the limit block 12 later; When it is necessary to retract the bottom plate 4 in contact with the ground, the staff first moves the second push rod 34 downward through the lever 36 and the chuck 33, so that the second push rod 34 does not contact the cone 23, and then rotates the stop rod 38 to the top of the lever 36, and limits the lever 36 through the stop rod 38 to ensure that the second push rod 34 does not move upward. At this time, the bottom plate 4 is still in contact with the limit plate 3, and the first push rod 26 is in an extrusion state on the guide plate 30, so that the block 32 cannot be engaged with the chuck 33, so the stop rod 38 is first used to limit the second push rod 34, and then the power shaft 40 is made to point with the pointer 40 and the positioning pin 42 together. At this time, the position of the limit block 12 can be re-engaged with the limit shell 22, and then the staff pushes the cone 23, so that the cone 23 and the limit shell 22 are re-engaged with the limit block 12 and the second bevel gear 13 Together, the limit shells 22 on the inner sides of the two outer legs 1 are adjusted in the same way. The two limit shells 22 can be adjusted to the position of the engagement with the limit block 12 first. The position of one of the limit shells 22 can be adjusted first, so that one of the base plates 4 first rises to a position flush with the other base plate 41, and then the position of the other limit shell 22 is adjusted. After the adjustment is completed, when the power shaft 11 rotates, it will again rotate with the second bevel gear 13 through the limit block 12 and the limit shell 22. When the base plate 4 is completely retracted upward, the first push rod 26 will move downward under the elastic force of the first spring 28, so that the first push rod 26 does not squeeze the guide plate 30, ensuring that the block 32 can be normally engaged with the chuck 33, and then the chuck 33 continues to move downward through the lever 36 to make the chuck 33 engage with the block 32 again, and then it can wait for the next use.

[0050] The above is a preferred embodiment of the present invention. The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the protection scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A split support device for a new energy semi-trailer, comprising an outer support leg (1) and a power shaft (11), characterized in that: Both ends of the power shaft (11) are rotatably connected to an outer leg (1), the inner side of the outer leg (1) is slidably connected to an inner leg (2), the bottom end of the inner leg (2) is fixedly connected to a limit plate (3), the lower side of the limit plate (3) is provided with a bottom plate (4), the inner side of the outer leg (1) is fixedly connected to a fixing plate (8), the inner side of the fixing plate (8) is rotatably connected to a screw rod (9), the outer side of the screw rod (9) is spirally connected to a connecting plate (7), and the connecting plate (7) is fixedly connected to the inner leg (2), the top end of the screw rod (9) is fixedly connected to a first bevel gear (10), both ends of the power shaft (11) are provided with a power switching mechanism, one end of the outer leg (1) is fixedly connected to a connecting shell (5), the inner side of the connecting shell (5) is provided with a reminder adjustment mechanism, one end of one of the outer legs (1) is fixedly connected to a gear box (39), and one end of the gear box (39) is provided with a marking mechanism.

2. A split support device for a new energy semi-trailer according to claim 1, characterized in that: The power switching mechanism comprises a limit block (12) fixedly connected to the power shaft (11); the outer side of the limit block (12) is slidably connected to a limit shell (22); the outer side of the limit shell (22) is fixedly connected to a cone (23) and a limit ring (50); the cone (23) is fixedly connected to the limit ring (50); the outer side of the limit shell (22) is slidably connected to a second bevel gear (13); the second bevel gear (13) is meshed with the first bevel gear (10); one end of the second bevel gear (13) is provided with a first fixed component; and the outer side of the limit shell (22) is provided with a second fixed component.

3. A split support device for a new energy semi-trailer according to claim 2, characterized in that: The first fixed assembly comprises a first bearing (14) fixedly connected to the second bevel gear (13); a first swivel (15) is fixedly connected to the outer side of the first bearing (14); a first connecting rod (16) is fixedly connected to the top end of the first swivel (15); and the first connecting rod (16) is fixedly connected to the outer leg (1).

4. A split support device for a new energy semi-trailer according to claim 2, characterized in that: The second fixing assembly comprises a second bearing (21) fixedly connected to the limiting shell (22); a second swivel (20) is fixedly connected to the outer side of the second bearing (21); a third connecting rod (18) is fixedly connected to the top of the second swivel (20); a guide shaft (19) is slidably connected to the inner side of the third connecting rod (18); one end of the guide shaft (19) is fixedly connected to the second connecting rod (17); and the second connecting rod (17) is fixedly connected to the outer leg (1).

5. The split support device for a new energy semi-trailer according to claim 1 is characterized in that: The reminder adjustment mechanism comprises a side plate (24) fixedly connected to the inner leg (2); one end of the side plate (24) is fixedly connected to a connecting tube (25); the top end of the connecting tube (25) is fixedly connected to a moving frame (6); the moving frame (6) is slidably connected to the connecting shell (5); a second push rod (34) is slidably connected to the inner side of the top end of the moving frame (6); the top end of the second push rod (34) is arranged in a wedge-shaped surface; the bottom end of the second push rod (34) is fixedly connected to a chuck (33); one end of the chuck (33) is engaged with a buckle assembly; a third spring (35) is arranged on the outer side of the second push rod (34); and the two ends of the third spring (35) are respectively fixedly connected to the moving frame (6) and the chuck (33).

6. A split support device for a new energy semi-trailer according to claim 5, characterized in that: The buckle assembly comprises a vertical plate (29) fixedly connected to the movable frame (6); a clamping block (32) is slidably connected to the inner side of the vertical plate (29), and the clamping block (32) is engaged with a chuck (33); one end of the clamping block (32) is fixedly connected to a guide plate (30), and the guide plate (30) is slidably connected to the vertical plate (29); one end of the guide plate (30) is fixedly connected to a second spring (31), and the other end of the second spring (31) is fixedly connected to the vertical plate (29).

7. A split support device for a new energy semi-trailer according to claim 6, characterized in that: A first push rod (26) is movably provided at one end of the guide plate (30), and the first push rod (26) is slidably connected to the limit plate (3), the bottom end of the first push rod (26) is fixedly connected to the bottom plate (4), the outer side of the first push rod (26) is fixedly connected to a baffle plate (27), the outer side of the first push rod (26) is provided with a first spring (28), and the two ends of the first spring (28) are respectively fixedly connected to the connecting tube (25) and the baffle plate (27).

8. The split support device for a new energy semi-trailer according to claim 5 is characterized in that: One end of the chuck (33) is fixedly connected to a lever (36), and the lever (36) is slidably connected to the connection shell (5). One end of the connection shell (5) is fixedly connected to an ear plate (37), and the top end of the ear plate (37) is rotatably connected to a stop rod (38).

9. A split support device for a new energy semi-trailer according to claim 1, characterized in that: The marking mechanism comprises an iron ring (41) fixedly connected to the gear box (39), a magnet (43) is magnetically attracted to the outer side of the iron ring (41), a positioning pin (42) is fixedly connected to the outer side of the magnet (43), a pointer (40) is provided on one side of the positioning pin (42), and the pointer (40) is fixedly connected to the power shaft (11).

10. The split support device for a new energy semi-trailer according to claim 1, characterized in that: A rotating shaft (44) is movably provided inside the gear box (39), a first gear (46) and a second gear (47) are fixedly connected to the outside of the rotating shaft (44), a third gear (48) and a fourth gear (49) are fixedly connected to the outside of the power shaft (11), and the third gear (48) can mesh with the second gear (47), and the first gear (46) can mesh with the fourth gear (49), and one end of the rotating shaft (44) is rotatably connected to a crank (45).

Images