Portable car pusher

Abstract

The invention relates to the technical field of railway loading and unloading auxiliary tools, in particular to a portable car pusher which comprises a monorail trolley body, a crowbar support, a crowbar and a pin shaft, a car pushing handle is arranged at the top end of the rear side of the monorail trolley body, and rear wheels are arranged on the rear portion of the monorail trolley body. Two crowbar supports are symmetrically and fixedly installed on the left side and the right side of the front portion of the top end of the monorail trolley body, a crowbar is arranged between the two crowbar supports, the crowbar and the two crowbar supports are connected through a pin shaft to form a pair of reverse tensioning type pliers, and the crowbar can swing up and down around the pin shaft to pry and rotate wheels of the railway freight car. A driving assembly for driving the crowbar to swing up and down around the pin shaft is arranged on the monorail trolley body; the bottom of the front end of the crowbar support and the rear wheel are jointly supported on the rail surface. The portable car pusher is low in manufacturing cost and convenient to popularize.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway loading and unloading auxiliary tools, in particular to a portable trolley machine. BACKGROUND

[0002] When loading and unloading goods in the freight yard, the railway freight car box often needs to be moved for a short distance, and there is often no locomotive or tractor on site, so many people have to push and use manual pry. The manual pry is a long steel rod with a flattened and curved front end, which uses the principle of leverage to pry the railway freight car box and is widely used in railway freight yards. Most of the freight car boxes are full of more than 80 tons, and it is slow and laborious to pry the freight car box with a manual pry. For this reason, some small rail cars have been designed, which are small in size and heavy in weight, and are not convenient to move up and down, occupy the track, and affect the towing of the freight car box.

[0003] The trolley machine patent with application number CN89203426.2 proposes a small mechanical device that walks on a single track, uses a gasoline engine or an electric motor as power, and uses a trolley hydraulic pry to push the wheels of the freight car and drive the trolley machine to walk through the walking system. The trolley hydraulic pry of this patent moves back and forth, and the pushing of the freight car wheels is intermittent, while the walking system is continuously operated, and the two cannot be coordinated, so the guide wheel (i.e. the drive wheel) will frequently slip on the track and be prone to overheating and wear. Furthermore, the mechanical transmission system of this patent is complex, and it also has a hydraulic system, so the overall weight of the machine is large and the cost is high, and therefore it has not been widely used. SUMMARY

[0004] The purpose of the present application is to provide a portable trolley machine to solve the technical problems existing in the background art.

[0005] To achieve the above purpose, the technical solution of the present application is as follows:

[0006] A portable trolley machine, comprising: a single-track trolley body, a pry bar support, a pry bar and a pin shaft, the rear top end of the single-track trolley body is provided with a trolley handle, the rear of the single-track trolley body is provided with a rear wheel, the top front of the single-track trolley body is symmetrically fixed with two pry bar supports on the left and right sides, a pry bar is arranged between the two pry bar supports, the pry bar and the two pry bar supports are connected into a pair of reverse tension force pliers through the pin shaft, the pry bar can swing up and down around the pin shaft to pry the railway freight car wheels; a driving assembly is arranged on the single-track trolley body for driving the pry bar to swing up and down around the pin shaft; the front end of the pry bar support and the rear wheel are jointly supported on the rail surface.

[0007] Further, it further comprises a rear wheel shaft, the monorail trolley body comprises two longitudinal plates and two transverse plates, the two longitudinal plates are symmetrically arranged in parallel from left to right, and the two transverse plates are symmetrically arranged in parallel from front to back; the two transverse plates are fixedly connected between the two longitudinal plates on the front and back sides respectively, and the rear wheels are rotatably connected to the rear of the two longitudinal plates through the rear wheel shaft.

[0008] Further, it further comprises a ground wheel and a ground wheel shaft, the ground wheel is provided with two, and the two ground wheels are rotatably installed on the outer side ends of the front portions of the two longitudinal plates through the ground wheel shaft.

[0009] Further, the crowbar support comprises a crowbar support rear portion, a crowbar support middle portion, a crowbar support hinge portion and a crowbar support front portion, the crowbar support rear portion, the crowbar support middle portion, the crowbar support hinge portion and the crowbar support front portion are fixedly connected in sequence from back to front, the crowbar support rear portion is fixedly installed at the top front portion of the monorail trolley body, the pin shaft is connected to the crowbar support hinge portion, the bottom end of the crowbar support front portion is provided with a crowbar support front portion lower inclined surface, the crowbar support front portion lower inclined surface is arranged obliquely upward from front to back, and the front end of the crowbar support front portion lower inclined surface is a crowbar support front fulcrum which is supported on the rail surface.

[0010] Further, it further comprises a bolt one, a bolt two, a bolt three, a spacing block and a baffle, the bottom end of the crowbar support rear portion is provided with a crowbar support rear portion lower plane, a plurality of crowbar support mounting bolt holes are formed in the crowbar support rear portion lower plane, the bolt one is provided with a plurality of, the plurality of bolts one are threaded into the monorail trolley body from bottom to top and are respectively connected to the plurality of crowbar support mounting bolt holes in the two crowbar support rear portion lower planes; the crowbar support rear portion, the crowbar support middle portion and the crowbar support front portion are all provided with two left and right connecting bolt holes, the bolt two is provided with twelve, the spacing block is provided with three, the three spacing blocks are respectively arranged between the two crowbar supports, and the twelve bolt twos are respectively threaded into the twelve left and right connecting bolt holes in the two crowbar supports and are respectively screwed into the left and right ends of the three spacing blocks; the baffle is provided with two, the crowbar support front portion is provided with a plurality of baffle bolt holes, the bolt three is provided with a plurality of, and the plurality of bolt threes are respectively threaded into the two baffles and are respectively screwed into the plurality of baffle bolt holes in the two crowbar supports.

[0011] Further, it further includes: eccentric shaft, eccentric wheel, rear needle bearing, ball bearing and front needle bearing, the pry bar support rear upper side is provided with ball bearing hole, the ball bearing is provided with two, the outer ring of two ball bearings is respectively fixedly connected in two ball bearing holes on two pry bar supports, the eccentric shaft penetrates and fixedly connects the eccentric wheel, the left outer wall and the middle outer wall of the eccentric shaft are respectively fixedly connected with the inner ring of two ball bearings, the right end of the eccentric shaft is connected with the driving assembly, the eccentric wheel is located between the two ball bearings, the eccentric wheel is sleeved and fixed with the rear needle bearing; the eccentric wheel drives the pry bar to swing up and down around the pin shaft through the rear needle bearing; the pry bar support hinge part is provided with pry bar support pin hole, the pin shaft is respectively pinned in the pry bar support pin hole on the two pry bar supports, the front needle bearing is sleeved and fixed in the middle of the pin shaft, and the pry bar is hinged with the pin shaft through the front needle bearing.

[0012] Further, it further includes: bearing cover and bolt four, the bearing cover is provided with two, the bolt four is provided with a plurality of, the pry bar support rear outside end is uniformly provided with a plurality of bearing cover screw holes, a plurality of bolt four are respectively penetrated through two bearing covers and are respectively screwed with a plurality of bearing cover screw holes on two pry bar supports.

[0013] Further, the driving assembly includes: small gasoline engine, gear reduction box, driving sprocket, transmission chain and driven sprocket, the monorail trolley body top front left and right sides are respectively provided with small gasoline engine and gear reduction box, the output shaft of the small gasoline engine is connected with the output shaft of the gear reduction box, the output shaft right end of the gear reduction box is coaxially fixedly connected with the driving sprocket, the driving sprocket is drivenly connected with the driven sprocket through the transmission chain, and the driven sprocket is coaxially fixedly connected with the right end of the eccentric shaft.

[0014] Further, the pry bar includes: straight guide pry bar rear, pry bar middle, pry bar hinge part and pry bar front, the straight guide pry bar rear, pry bar middle, pry bar hinge part and pry bar front are sequentially fixedly connected from back to front, the straight guide pry bar rear is provided with pry bar straight guide hole, the eccentric wheel is slidably connected in the pry bar straight guide hole through the rear needle bearing and moves linearly relative to the pry bar straight guide hole; the pry bar hinge part is provided with pry bar pin bearing hole, and the middle of the pin shaft is installed in the pry bar pin bearing hole through the front needle bearing; the pry bar front is provided with pry bar front end stress surface, and the pry bar front end stress surface is in contact with the railway wagon wheel.

[0015] Further, the crowbar comprises: a curved guiding crowbar rear part, a crowbar middle part, a crowbar hinged part and a crowbar front part, which are sequentially fixedly connected from rear to front, the curved guiding crowbar rear part is provided with a crowbar curved guiding hole, and the eccentric wheel is slidably connected in the crowbar curved guiding hole and moves in a curve relative to the crowbar curved guiding hole through a rear roller bearing; the crowbar hinged part is provided with a crowbar pin bearing hole, and the pin shaft middle part is installed in the crowbar pin bearing hole through a front roller bearing; the crowbar front part is provided with a crowbar front end stress surface, and the crowbar front end stress surface is in contact with the railway wagon wheel.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The present application rotates by a small gasoline engine, and the eccentric wheel rotates at a low speed through a gear reduction box and a chain transmission mechanism, so as to drive the crowbar to swing up and down around the pin shaft and pry the railway wagon wheel; when the wagon wheel is prying, the front end of the crowbar is subjected to a reaction force from the wagon wheel downward and rearward, which is mainly borne by the front fulcrum of the two crowbar supports and a small part is borne by the rear wheel and acts on the rail surface, and the force from the front end of the crowbar downward and rearward generates a clockwise moment around the pin shaft, which is balanced by the two crowbar supports through the eccentric wheels on the rear end of the crowbar and the eccentric wheel shafts on the rear part of the two crowbar supports, so that the single-track trolley body is not subjected to up and down jumping, and the contact stress of the front end of the crowbar is reduced by designing the crowbar front end stress surface into a circular arc shape; the whole machine is light in weight, low in cost, and can be operated by one person with high working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front view of the present application;

[0019] Figure 2 is the top view of the present application;

[0020] Figure 3 is the sectional view of A-A in the present application; Figure 1

[0021] Figure 4 is the sectional view of B-B in the present application; Figure 1

[0022] Figure 5 is the front view of the crowbar support in the present application;

[0023] Figure 6 is the top view of the crowbar support in the present application;

[0024] Figure 7 is the front view of the crowbar in the embodiment 1 of the present application;

[0025] Figure 8 ​​is a top view of the crowbar in embodiment 1 of the present application;

[0026] Figure 9 is a front view of the crowbar in embodiment 2 of the present application;

[0027] Figure 10 is a top view of the crowbar in embodiment 2 of the present application.

[0028] The reference signs in the drawings are: 1 - monorail trolley body, 2 - small gasoline engine, 3 - gear reduction box, 4 - driving sprocket, 5 - transmission chain, 6 - driven sprocket, 7 - eccentric shaft, 8 - crowbar support, 8a - rear part of crowbar support, 8b - middle part of crowbar support, 8c - hinged part of crowbar support, 8d - front part of crowbar support, 801 - ball bearing hole, 802 - crowbar support pin hole, 803 - lower inclined surface of front part of crowbar support, 804 - front fulcrum of crowbar support, 805 - baffle bolt hole, 806 - left and right connecting bolt hole, 807 - bearing cover screw hole, 808 - lower flat surface of rear part of crowbar support, 809 - crowbar support mounting bolt hole, 9 - crowbar, 9a - straight guide rear part of crowbar, 9b - middle part of crowbar, 9c - hinged part of crowbar, 9d - front part of crowbar, 9e - curved guide rear part of crowbar, 901 - straight guide hole of crowbar, 902 - pin bearing hole of crowbar, 903 - force receiving surface of front end of crowbar, 904 - curved guide hole of crowbar, 10 - pin shaft, 11 - baffle, 12 - ground wheel, 13 - ground wheel shaft, 14 - rear wheel shaft, 15 - rear wheel, 16 - eccentric wheel, 17 - rear needle roller bearing, 18 - ball bearing, 19 - bearing cover, 20 - front needle roller bearing. DETAILED DESCRIPTION

[0029] The present application will be further described in detail below in conjunction with the drawings and embodiments.

[0030] Embodiment 1

[0031] Referring to Figures 1-8 A portable trolley machine includes a monorail trolley body 1, a crowbar support 8, a crowbar 9 and a pin shaft 10, the monorail trolley body 1 is provided with a trolley handle at the top end of the rear side, the monorail trolley body 1 is provided with a rear wheel 15 at the rear part, the monorail trolley body 1 is symmetrically fixed and installed with two crowbar supports 8 at the top end of the front part of the left and right sides, the crowbar 9 is arranged between the two crowbar supports 8, the crowbar 9 is connected with the two crowbar supports 8 through the pin shaft 10 to form a pair of reverse tension force pincers, the crowbar 9 can swing up and down around the pin shaft 10 to pry the wheels of the railway wagon, the monorail trolley body 1 is provided with a driving assembly for driving the crowbar 9 to swing up and down around the pin shaft 10, the front end bottom of the crowbar support 8 and the rear wheel 15 are supported on the rail surface to form a stable two-point support state.

[0032] The trolley machine further comprises a rear wheel shaft 14, the monorail trolley body 1 comprises two longitudinal plates and two transverse plates, the two longitudinal plates are symmetrically arranged in parallel from left to right, and the two transverse plates are symmetrically arranged in parallel from front to back; the two transverse plates are respectively fixedly connected between the two longitudinal plates on the front and rear sides, and the rear wheel 15 is rotatably connected to the rear of the two longitudinal plates through the rear wheel shaft 14; the rim of the rear wheel 15 plays a guiding role.

[0033] The trolley machine further comprises ground wheels 12 and a ground wheel shaft 13, the ground wheels 12 are provided in two, and the two ground wheels 12 are rotatably installed on the outer side ends of the front portions of the two longitudinal plates through the ground wheel shaft 13; the provided ground wheels 12 can facilitate the pushing of the entire device on the ground; when pushing on the ground, the front ends of the two crowbar supports 8 are suspended, and the rear wheel 15 and the two ground wheels 12 roll on the ground; when pushing on the rail surface, the front ends of the two crowbar supports 8 and the rear wheel 15 are supported on the rail surface, and the two ground wheels 12 are suspended and do not contact the rail and the ground.

[0034] The crowbar support 8 comprises a crowbar support rear portion 8a, a crowbar support middle portion 8b, a crowbar support hinged portion 8c and a crowbar support front portion 8d, which are fixedly connected in sequence from back to front, the crowbar support rear portion 8a is fixedly installed at the top end of the front portion of the monorail trolley body 1, the pin shaft 10 is pinned to the crowbar support hinged portion 8c, the bottom end of the crowbar support front portion 8d is provided with a crowbar support front portion lower inclined surface 803, which is inclined upward from front to back, the front end of the crowbar support front portion lower inclined surface 803 is a crowbar support front fulcrum 804, which is supported on the rail surface.

[0035] The trolley machine further comprises a bolt one, a bolt two, a bolt three, a spacer block and a baffle plate 11, the bottom end of the crowbar support rear portion 8a is provided with a crowbar support rear portion lower plane 808, a plurality of crowbar support mounting bolt holes 809 are formed on the crowbar support rear portion lower plane 808, the bolt one is provided with a plurality of bolt ones, the plurality of bolt ones are penetrated through the monorail trolley body 1 from bottom to top and are respectively threadedly connected with the plurality of crowbar support mounting bolt holes 809 on the two crowbar support rear portion lower planes 808; the crowbar support rear portion 8a, the crowbar support middle portion 8b and the crowbar support front portion 8d are all provided with two left and right connecting bolt holes 806, the bolt two is provided with twelve bolts two, the spacer block is provided with three spacer blocks, the three spacer blocks are respectively arranged between the two crowbar supports 8, the twelve bolt two are respectively penetrated through the twelve left and right connecting bolt holes 806 on the two crowbar supports 8 and are respectively threadedly connected with the left and right ends of the three spacer blocks; the baffle plate 11 is provided with two baffle plates 11, the crowbar support front portion 8d is provided with a plurality of baffle plate bolt holes 805, the bolt three is provided with a plurality of bolt three, the plurality of bolt three are respectively penetrated through the two baffle plates 11 and are respectively threadedly connected in the plurality of baffle plate bolt holes 805 on the two crowbar supports 8; the two baffle plates 11 can prevent the front end of the two crowbar supports 8 from sliding away from the rail surface.

[0036] The trolley machine further comprises an eccentric shaft 7, an eccentric wheel 16, a rear needle bearing 17, a ball bearing 18 and a front needle bearing 20, a ball bearing hole 801 is formed on the upper side of the crowbar support rear portion 8a, the ball bearing 18 is provided with two ball bearings 18, the outer rings of the two ball bearings 18 are respectively fixedly connected in the two ball bearing holes 801 on the two crowbar supports 8, the eccentric shaft 7 penetrates and fixedly connects the eccentric wheel 16, the left side outer wall and the middle portion outer wall of the eccentric shaft 7 are respectively fixedly connected with the inner rings of the two ball bearings 18, the right end of the eccentric shaft 7 is connected with a driving assembly, the eccentric wheel 16 is located between the two ball bearings 18, the rear needle bearing 17 is fixedly sleeved on the eccentric wheel 16; the eccentric wheel 16 drives the crowbar 9 to swing up and down around the pin shaft 10 through the rear needle bearing 17; the crowbar support hinge portion 8c is provided with a crowbar support pin hole 802, the pin shaft 10 is respectively pinned in the crowbar support pin hole 802 on the two crowbar supports, the both ends of the pin shaft 10 are locked by a clamping spring, the front needle bearing 20 is fixedly sleeved on the middle portion of the pin shaft 10, the crowbar 9 is hinged with the pin shaft 10 through the front needle bearing 20.

[0037] The trolley machine further comprises a bearing cover 19 and a bolt four, the bearing cover 19 is provided with two bearing covers 19, the bolt four is provided with a plurality of bolts four, a plurality of bearing cover screw holes 807 are uniformly formed on the outer side end of the crowbar support rear portion 8a, a plurality of bolt four are respectively penetrated through the two bearing covers 19 and are respectively threadedly connected with the plurality of bearing cover screw holes 807 on the two crowbar supports.

[0038] The driving assembly comprises: a small gasoline engine 2, a gear reduction box 3, a driving sprocket 4, a transmission chain 5 and a driven sprocket 6, the small gasoline engine 2 and the gear reduction box 3 are arranged at the top front part of the monorail trolley body 1 respectively, the output shaft of the small gasoline engine 2 is connected with the output shaft of the gear reduction box 3, the output shaft of the gear reduction box 3 is coaxially fixedly connected with the driving sprocket 4, the driving sprocket 4 is drivingly connected with the driven sprocket 6 through the transmission chain 5, and the driven sprocket 6 is coaxially fixedly connected to the right end of the eccentric shaft 7.

[0039] The crowbar 9 comprises: a straight guide crowbar rear part 9a, a crowbar middle part 9b, a crowbar hinged part 9c and a crowbar front part 9d, which are fixedly connected in sequence from back to front, the straight guide crowbar rear part 9a is provided with a straight guide hole 901 of the crowbar, the eccentric wheel 16 is slidingly connected in the straight guide hole 901 of the crowbar through the rear needle bearing 17 and moves linearly relative to the straight guide hole 901 of the crowbar; the crowbar hinged part 9c is provided with a pin bearing hole 902 of the crowbar, the middle part of the pin shaft 10 is installed in the pin bearing hole 902 of the crowbar through the front needle bearing 20; the crowbar front part 9d is provided with a front end stress surface 903 of the crowbar, which is in contact with the railway wagon wheel; in order to reduce the contact stress, the front end stress surface 903 of the crowbar is made into a circular arc shape, the radius of the circular arc of the front end stress surface 903 of the crowbar is 15-25 mm, and the best is 20 mm; when the front end of the crowbar 9 swings upward, the front end stress surface 903 of the crowbar 9 pushes the wagon wheel to roll forward; when the front end of the crowbar 9 swings downward, the front end stress surface 903 of the crowbar 9 is separated from the wagon wheel, the wagon wheel continues to roll forward by inertia, and at the same time, the monorail trolley body 1 is pushed forward by the operator to make the front end stress surface 903 of the crowbar 9 close to the wagon wheel; in this way, the small gasoline engine 2 continuously rotates, the crowbar 9 continuously swings up and down, and the operator pushes the device to make the wagon box advance.

[0040] Example two

[0041] The difference between the embodiment and the example one is only that the specific structure of the crowbar 9 is different, and the specific structure of the crowbar 9 is shown in the following figure. Figures 1-6As shown in 9-10, the crowbar 9 comprises a curved guiding crowbar rear part 9e, a crowbar middle part 9b, a crowbar hinged part 9c and a crowbar front part 9d, which are sequentially fixed and connected from rear to front, the curved guiding crowbar rear part 9e is provided with a crowbar curved guiding hole 904, the eccentric wheel 16 is slidably connected in the crowbar curved guiding hole 904 through a rear roller bearing 17 and performs a curved motion relative to the crowbar curved guiding hole 904; the crowbar hinged part 9c is provided with a crowbar pin bearing hole 902, the middle part of the pin shaft 10 is installed in the crowbar pin bearing hole 902 through a front roller bearing 20; the crowbar front part 9d is provided with a crowbar front end stress surface 903, which is in contact with the railway wagon wheel; compared with the crowbar 9 in the first embodiment, the crowbar 9 in the embodiment can increase the driving angle of the eccentric wheel 16, prolong the driving time and improve the performance of pushing the cart.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, 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, and therefore cannot be understood as limiting the present application.

[0043] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any skilled person in the art can make any simple modification, equivalent replacement and improvement to the above embodiment according to the technical essence of the present application without departing from the scope of the technical solution of the present application, which is still within the protection scope of the present application.

Claims

1. A portable cart machine characterized by, The utility model relates to a single track trolley body (1), crowbar support (8), crowbar (9) and pin shaft (10), the single track trolley body (1) rear side top end is provided with pushchair handle, the single track trolley body (1) rear part is provided with rear wheel (15), the single track trolley body (1) top end front part left and right sides symmetry fixed mounting has two crowbar supports (8), and is provided with crowbar (9) between two crowbar supports (8), and the crowbar (9) is connected into a pair of reverse tension force pincers with two crowbar supports (8) through pin shaft (10), the crowbar (9) can swing up and down around pin shaft (10), and the railway wagon wheel is prised, the single track trolley body (1) is provided with the drive assembly for driving the crowbar (9) swing up and down around pin shaft (10), the front end bottom of crowbar support (8) is supported on the rail surface with rear wheel (15). Also includes:

2. A portable trolley as claimed in claim 1, wherein: Rear wheel shaft (14), the single track trolley body (1) includes two longitudinal plates and two transverse plates, two longitudinal plates are symmetrically arranged in parallel left and right, and two transverse plates are symmetrically arranged in parallel front and back; two transverse plates are fixedly connected between two longitudinal plates on the front and back sides respectively, and the rear wheel (15) is rotatably connected to the rear part between two longitudinal plates through the rear wheel shaft (14). Also includes:

3. A portable pallet truck according to claim 2, characterized in that: Ground wheel (12) and ground wheel shaft (13), the ground wheel (12) is provided with two, and two ground wheels (12) are rotatably installed on the outer side end of the left and right sides of the front part of two longitudinal plates through the ground wheel shaft (13) respectively. The crowbar support (8) includes: crowbar support rear part (8a), crowbar support middle part (8b), crowbar support hinged part (8c) and crowbar support front part (8d), the crowbar support rear part (8a), the crowbar support middle part (8b), the crowbar support hinged part (8c) and the crowbar support front part (8d) are sequentially fixedly connected from back to front, the crowbar support rear part (8a) is fixedly installed at the top end front part of the single track trolley body (1), the pin shaft (10) is pinned in the crowbar support hinged part (8c), the bottom end of the crowbar support front part (8d) is provided with the crowbar support front part lower inclined surface (803), the crowbar support front part lower inclined surface (803) is inclined upward from front to back, and the front end of the crowbar support front part lower inclined surface (803) is the crowbar support front fulcrum (804), which is supported on the rail surface.

4. The portable cart of claim 1, wherein: Also includes:

5. A portable trolley as claimed in claim 4 wherein: ​ The bolt one, the bolt two, the bolt three, the spacer block and the baffle (11), the pry bar support rear part (8a) bottom end is equipped with pry bar support rear part lower plane (808), the pry bar support rear part lower plane (808) is equipped with a plurality of pry bar support mounting bolt hole (809), the bolt one is equipped with a plurality of, a plurality of bolt one is from below to above through monorail trolley car body (1) and respectively screw connection two pry bar support rear part lower plane (808) on a plurality of pry bar support mounting bolt hole (809);The pry bar support rear part (8a), pry bar support middle part (8b) and pry bar support front part (8d) are all equipped with two left and right connecting bolt hole (806), the bolt two is equipped with twelve, the spacer block is equipped with three, three spacer blocks are respectively arranged between two pry bar supports (8), by twelve bolt two is respectively through twelve left and right connecting bolt hole (806) on two pry bar supports (8) and respectively screw connection in the left and right ends of three spacer blocks;The baffle (11) is equipped with two, the pry bar support front part (8d) is equipped with a plurality of baffle bolt hole (805), the bolt three is equipped with a plurality of, a plurality of bolt three is respectively through two baffles and respectively screw connection in a plurality of baffle bolt hole (805) on two pry bar supports (8).

6. A portable pallet truck according to claim 4, characterized in that: Also include: Eccentric shaft (7), eccentric wheel (16), rear needle bearing (17), ball bearing (18) and front needle bearing (20), the pry bar support rear part (8a) upper side is equipped with ball bearing hole (801), the ball bearing (18) is equipped with two, the outer ring of two ball bearings (18) is respectively fixedly connected in two ball bearing holes (801) on two pry bar supports (8), the eccentric shaft (7) is fixedly connected eccentric wheel (16), the left outer wall and the middle outer wall of the eccentric shaft (7) are respectively fixedly connected the inner ring of two ball bearings (18), the right end of the eccentric shaft (7) is connected with driving assembly, the eccentric wheel (16) is located between two ball bearings (18), the eccentric wheel (16) is fixed with rear needle bearing (17) on the sleeve, the pry bar (9) is driven by the rear needle bearing (17) of the eccentric wheel (16) to swing up and down around the pin shaft (10), the pry bar support hinge part (8c) is equipped with pry bar support pin hole (802), the pin shaft (10) is respectively pinned in the pry bar support pin hole (802) on two pry bar supports, the front needle bearing (20) is fixedly connected in the pin shaft (10) middle sleeve, the pry bar (9) is hinged with the pin shaft (10) through the front needle bearing (20).

7. A portable pallet truck according to claim 6, characterized in that: Also include: Bearing cover (19) and bolt four, the bearing cover (19) is equipped with two, the bolt four is equipped with a plurality of, the pry bar support rear part (8a) outside end is evenly equipped with a plurality of bearing cover screw hole (807), a plurality of bolt four is respectively through two bearing covers (19) and respectively screw connection a plurality of bearing cover screw hole (807) on two pry bar supports.

8. The portable cart of claim 6, wherein: The driving assembly comprises a small gasoline engine (2), a gear reduction box (3), a driving sprocket (4), a transmission chain (5) and a driven sprocket (6), the monorail trolley body (1) is provided with the small gasoline engine (2) and the gear reduction box (3) at the top front left and right sides respectively, the output shaft of the small gasoline engine (2) is connected with the output shaft of the gear reduction box (3), the output shaft of the gear reduction box (3) is coaxially fixedly connected with the driving sprocket (4) at the right end, the driving sprocket (4) is drivingly connected with the driven sprocket (6) through the transmission chain (5), and the driven sprocket (6) is coaxially fixedly connected at the right end of the eccentric shaft (7).

9. The portable cart of claim 6, wherein: The crowbar (9) comprises a straight guide crowbar rear part (9a), a crowbar middle part (9b), a crowbar hinged part (9c) and a crowbar front part (9d), which are fixedly connected in sequence from back to front, the straight guide crowbar rear part (9a) is provided with a straight guide hole (901) of the crowbar, the eccentric wheel (16) is slidingly connected in the straight guide hole (901) of the crowbar through the rear needle bearing (17) and moves linearly relative to the straight guide hole (901) of the crowbar, the crowbar hinged part (9c) is provided with a pin shaft bearing hole (902) of the crowbar, the middle part of the pin shaft (10) is installed in the pin shaft bearing hole (902) of the crowbar through the front needle bearing (20), and the crowbar front part (9d) is provided with a front end stress surface (903) of the crowbar, which is in contact with the railway wagon wheel.

10. The portable cart of claim 6, wherein: The crowbar (9) comprises a straight guide crowbar rear part (9a), a crowbar middle part (9b), a crowbar hinged part (9c) and a crowbar front part (9d), which are fixedly connected in sequence from back to front, the straight guide crowbar rear part (9a) is provided with a straight guide hole (901) of the crowbar, the eccentric wheel (16) is slidingly connected in the straight guide hole (901) of the crowbar through the rear needle bearing (17) and moves linearly relative to the straight guide hole (901) of the crowbar, the crowbar hinged part (9c) is provided with a pin shaft bearing hole (902) of the crowbar, the middle part of the pin shaft (10) is installed in the pin shaft bearing hole (902) of the crowbar through the front needle bearing (20), and the crowbar front part (9d) is provided with a front end stress surface (903) of the crowbar, which is in contact with the railway wagon wheel.

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