CN215752415U - Working component for cart mechanism - Google Patents

Abstract

A working part for a trolley mechanism comprises a grabbing mechanism, wherein the grabbing mechanism comprises a telescopic oil cylinder, the telescopic oil cylinder is connected with a lifting piece, sliding grooves are symmetrically formed in the lifting piece, and grabs are connected in the sliding grooves and hinged with each other; the outer side of the hand grip is provided with a plane; the working part can be used for pushing and pulling the cart, and can also be used for grabbing workpieces, so that the utilization rate and the universality are improved; preferably, the driving oil cylinder is started to push the rotating part to rotate, so that the whole gripper is driven to rotate, the angle of the gripper is adjusted, and the angle between the plane and the trolley is adjusted; more preferably, the follow-up device can be arranged to adjust the contact surface between the plane of the push handle and the trolley at any time, and particularly, the contact can be better realized under the conditions of curves and the like, so that the trolley is better operated, the follow-up device is more stable from stopping to starting, and the brake is also stable.

Description

Working component for cart mechanism

Technical Field

The application relates to the technical field of cart equipment, in particular to a working component for a cart mechanism.

Background

In the mining process, the reliable operation of the mine equipment is an important link of safe production, the safe operation of the mine equipment is maintained, the occurrence of safety accidents is avoided, and the mine equipment has practical economic significance and important social significance; the car pusher, i.e. the pushing device, is used for pushing the mine car into or out of the cage, and is suitable for mine well heads or shaft bottom yards.

In the prior art, the cart is mainly divided into two forms, one is: the manual cart has a simple structure and low mechanical cost, but has high labor cost, large physical consumption, long required time and extremely low safety factor; the other type is an electric car pusher, which can save labor cost and improve safety of workers and is widely applied, the electric car pusher in the prior art is used for pre-driving a foundation at a proper position of a mine cage guide and then is installed with a car pusher, when the mine car needs to be used, a mine car is pushed into the mine cage through the car pusher, the structure of the car pusher is complex, the car pushing part can not only realize transverse and longitudinal movement, but also can rotate, and the mine car is easy to overturn in the rotating process, so that safety accidents are caused, the structure is complex, the manufacturing cost is high, the universality is poor, and the car pusher is difficult to maintain.

The working components used for being in contact with the cart in the prior art are in shapes of rectangular plates, cylinders and the like, are used for pushing out or pulling back the cart, are single in structure, can only be used for realizing pushing and pulling actions, cannot be used for realizing other functions, and are low in universality.

Therefore, a new technical solution is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

A working part for a trolley mechanism comprises a grabbing mechanism, wherein the grabbing mechanism comprises a telescopic oil cylinder, the telescopic oil cylinder is connected with a lifting piece, sliding grooves are symmetrically formed in the lifting piece, grippers are connected in the sliding grooves, and the grippers are hinged to each other; the outer side of the hand grip is provided with a plane.

As a preferred scheme, the hinged part of the hand grip is connected with a rotating part, and the rotating part is connected with a driving oil cylinder.

As a preferable scheme, the gripper comprises a hinged part, the hinged part is connected with the sliding groove, a hinged hole is formed in the hinged part, and the hinged part is hinged through the hinged hole; the articulated part is connected with the grabbing part, and the outer side of the grabbing part is provided with a plane.

As a preferred scheme, the rotating part comprises an installation part, the hand grip and the lifting part are both arranged in the installation part, a connecting hole is formed in the rotating part on the outer side of the installation part, the connecting hole is hinged with the hinge hole, the rotating part is connected with a driving oil cylinder, and the driving oil cylinder is arranged on the upper plane of the rotating part; the top of rotating the piece has seted up flexible hydro-cylinder mounting hole, and flexible hydro-cylinder passes flexible hydro-cylinder mounting hole is connected with the lift in the installation department.

As a preferred scheme, the gripper is connected with a follow-up device, the follow-up device comprises a three-position four-way valve, and the three-position four-way valve is connected with a driving oil cylinder.

As a preferred scheme, the telescopic oil cylinder is connected with the first connecting piece, and the telescopic oil cylinder is arranged on the inner side of the first connecting piece.

As a preferred scheme, the bottom of connecting piece one is equipped with rotates the piece mounting hole, it passes to rotate the piece mounting hole, actuating cylinder passes the side opening of connecting piece one and is connected with the top of rotating the piece.

In the utility model, the telescopic oil cylinder is started to drive the lifting piece to move up and down, so that the gripper is driven to grab or loosen; when the telescopic oil cylinder drives the lifting piece to move upwards, the upper parts of the hinged parts of the two grippers move towards the inner side of the sliding groove in opposite directions, so that the grippers are used for gripping the workpiece, and otherwise, the workpiece is loosened; the outer side of the hand grip is provided with a plane, and the cart can be pushed or pulled back through the plane.

The working part can be used for pushing and pulling the cart, and can also be used for grabbing workpieces, so that the utilization rate and the universality are improved; the driving oil cylinder is started to push the rotating part to rotate, so that the whole gripper is driven to rotate, the angle of the gripper is adjusted, and the angle between the plane and the trolley is also adjusted; more preferably, the follow-up device can be arranged to adjust the contact surface between the push handle plane and the trolley at any time, and particularly can better realize contact under the conditions of curves and the like, so that the trolley is better operated, the follow-up device is stable from stopping to starting, the brake is also stable, and the driving oil cylinder cannot be unloaded when in use.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a schematic illustration of the construction of the grip of the present application;

FIG. 3 is a schematic structural diagram of a second embodiment of the present application;

FIG. 4 is a schematic view of the construction of the rotating member of the present application;

FIG. 5 is a structural schematic diagram of an angle I of the present application in connection with a first connector;

FIG. 6 is a structural schematic diagram of an angle II of the present application in connection with a first connector;

FIG. 7 is a structural diagram of an angle I for cooperating with the car pushing mechanism according to the present application;

FIG. 8 is a structural diagram of a second angle of the present application cooperating with a car pushing mechanism;

FIG. 9 is a schematic view of the construction of angle one of the forearm of the present application;

FIG. 10 is a structural schematic of angle two of the forearm of the present application;

FIG. 11 is a structural schematic view of angle one of the connection of the boom and the support of the present application;

FIG. 12 is a structural schematic view of the angle two of the connection of the boom and the support of the present application;

FIG. 13 is a schematic structural view of a pedestal;

FIG. 14 is a schematic view of the construction of angle one of the pendulous devices of the present application;

FIG. 15 is a structural schematic diagram of an angle two of the swing apparatus of the present application;

FIG. 16 is a schematic view of the present application showing the configuration of the first angle of engagement with the mobile carriage and the carriage;

FIG. 17 is a structural schematic diagram of the present application showing the angle II of engagement with the mobile carriage and the carriage;

FIG. 18 is a structural schematic diagram of the present application showing the angle III of engagement with the mobile carriage and the carriage;

FIG. 19 is a schematic structural view of the mobile carriage of the present application;

FIG. 20 is a schematic view of the present application showing the mating of the rollers and the traveling carriage of the traveling apparatus;

FIG. 21 is a schematic structural view of the connecting shaft of the present application;

FIG. 22 is a schematic structural view of a stent of the present application;

FIG. 23 is a simplified schematic of the three-position, four-way valve of the present application;

1. support 2, moving support 3, cart mechanism 4 and support

5. Big arm 6, big arm power source 7, connecting piece 8, forearm

9. A small arm power source 10, a working part 11, a first leveling oil cylinder 12 and a second leveling oil cylinder

13. First cross rod 14, second cross rod 15, first connecting piece 16 and swing power source

17. Rotating shaft 18, slewing bearing 19, support plate I20 and support plate II

21. Slide rail groove 22, roller 23, connecting shaft 24 and bearing

25. Bearing sleeve 26, telescopic oil cylinder 27, lifting piece 28 and sliding groove

29. Hand 30, hinge 31, workpiece 32, plane

33. Rotating piece 34, driving oil cylinder 35, first cross beam 36 and second cross beam

37. First longitudinal beam 38, second longitudinal beam 39, first oblique beam 40 and third longitudinal beam

41. A second oblique beam 42, a fourth longitudinal beam 43, a fifth longitudinal beam 44 and a first supporting cross beam

45. Supporting beam II 46, supporting beam III 47 and supporting beam IV

48. A first support longitudinal beam 49, a second support longitudinal beam 50 and a first support oblique beam

51. Second support oblique beam 52, bottom plate 53, support oblique beam 54 and track beam

55. Rail beam flange 56, mounting hole 57, grabbing part 58 and mounting part

59. A connecting hole 60 and a telescopic cylinder mounting hole.

Detailed Description

The following describes in detail a specific embodiment of the present invention with reference to fig. 1 to 23. It should be noted that the specific embodiments described herein are only for illustrating and explaining the present invention and are not to be construed as limiting the present invention.

The first embodiment is as follows:

the working part 10 in the embodiment can be used for pushing and pulling back the cart, and can also be used for grabbing workpieces, so that the utilization rate and the universality are improved; specifically, the working component 10 includes a telescopic cylinder 26, the telescopic cylinder 26 is connected with a lifting member 27, sliding grooves 28 are symmetrically formed in the lifting member 27 with respect to the middle of the telescopic cylinder 26, that is, the sliding grooves 28 are symmetrically formed in the middle of the telescopic cylinder 26, grippers 29 are connected in the sliding grooves 28, and the middle portions of the two grippers 29 are hinged; the telescopic oil cylinder 26 is started to drive the lifting piece 27 to move up and down, so that the gripper 29 is driven to grip or release; when the telescopic oil cylinder 26 drives the lifting piece 27 to move upwards, the upper parts of the hinged parts of the two grippers 29 move towards the inner side of the sliding groove 28 in opposite directions, so that the grippers 29 are used for gripping the workpiece 31, and otherwise, the workpiece 31 is released; the two sides of the hand grip 29 are provided with flat surfaces 32, and the cart can be pushed or pulled back through the arrangement of the flat surfaces 32.

More specifically, the hand grip 29 includes a hinge portion 30, the hinge portion 30 is disposed in the sliding groove 28, a mounting hole 56 is disposed on the hinge portion 30, and the mounting hole 56 and the sliding groove 28 are connected by a bolt, a connecting shaft, or the like, but not fixedly connected, so that the hinge portion 30 needs to be ensured to slide along the sliding groove 28; the hinge parts 30 are also provided with hinge holes, and the two hinge parts 30 are hinged through shafts and the like; the hinge part 30 is connected with a grabbing part 57, the grabbing part 57 takes the shape of a grab hand, and the grabbing part 57 and the hinge part 30 are integrally formed; the outer sides of the two gripping portions 57 are provided with flat surfaces 32.

Example two:

in this embodiment, when the cart 32 is pushed or pulled back, the angle between the plane 32 and the cart can be adjusted, and the angle of the working component 10 can be rotated, that is, the hand grip can be rotated, so as to better adjust the plane contact with the cart and better clamp the workpiece, specifically, the hinge portion 30 of the two hand grips 29 is further connected with a rotating member 33, and the rotating member 33 is connected with a driving oil cylinder 34; the driving oil cylinder 34 is started to push the rotating part 33 to rotate, so that the whole gripper 29 is driven to rotate, and the angle of the gripper 29 is adjusted, namely the angle between the plane 33 and the trolley is adjusted.

More specifically, the rotating part 33 is preferably cylindrical, the rotating part 33 includes a mounting portion 58, the mounting portion 58 is a rectangular groove formed in the bottom of the rotating part 33, the hand grip 29 and the lifting part 27 are both arranged in the mounting portion 58, a connecting hole 59 is formed in the rotating part 33 on the outer side of the mounting portion 58, and the connecting hole 59 is matched with a hinge hole in the hinge portion 30 to realize the hinge connection between the rotating part 33 and the hand grip 29; the rotating piece 33 is connected with a driving oil cylinder 34; the driving oil cylinder 34 is arranged on the upper plane of the rotating member 33; the top of the rotating part 33 is provided with a telescopic cylinder mounting hole 60, and the telescopic cylinder 26 passes through the telescopic cylinder mounting hole 60 to be connected with the lifting part 27 in the mounting part 58.

Example three:

in the working process, the contact surface between the plane 32 of the hand grip 29 and the cart can be adjusted at any time, so that the stress can be better adjusted, and the pushing and pulling work of the cart can be better completed.

Specifically, the gripper 29 is connected with a follow-up device, the follow-up device can adjust the contact surface between the push handle plane 33 and the cart at any time, and particularly can better realize contact under the conditions of curves and the like, so that the cart can be better operated, the follow-up device comprises a three-position four-way valve, the three-position four-way valve is connected with the driving oil cylinder 34, and when the three-position four-way valve is in a U-shaped middle position, the follow-up of the gripper 29 is realized; the working process of the specific three-position four-way valve is that an A, B working oil port is communicated, an oil inlet P and an oil return port T are closed, and the gripper 29 is in a floating state due to the communication of the working oil port A, B and can move under the action of external force, so that the positions of the plane 33 and the trolley are adjusted at any time.

Example four:

in this embodiment, in order to facilitate the application of the working component 10, the telescopic cylinder 26 is connected to the first connecting member 15, and the telescopic cylinder 26 is disposed inside the first connecting member 15; the bottom of connecting piece 15 is equipped with rotates the piece mounting hole, it passes to rotate piece 33 rotate the piece mounting hole, actuating cylinder 34 passes the side opening of connecting piece 15 and is connected with the top that rotates piece 33.

Example five:

in this embodiment, the present invention is used in combination with a cart pushing mechanism 3, as an embodiment, specifically, the cart pushing mechanism 3 includes a pitching device, the pitching device includes a support 4, a large arm 5 is connected to the support 4, the large arm 5 is rotatably connected to the support 4, the large arm 5 is connected to one end of a large arm power source 6, the other end of the large arm power source 6 is connected to the support 4, and the large arm power source 6 is preferably an oil cylinder in the prior art; the large arm 5 is connected with the small arm 8 through a connecting piece 7, and the connecting piece 7 is always vertical to the ground; the small arm 8 is provided with a small arm power source 9, the small arm power source 9 is preferably an oil cylinder in the prior art, and the small arm 8 is connected with a working part 10; leveling mechanisms are arranged on the large arm 5 and the small arm 8; the large arm power source 6 is started to push the large arm 5 to perform pitching motion, so as to drive the small arm 8 and the working part 10 to perform pitching motion, and the height distance between the small arm and the trolley is adjusted; the small arm power source 9 is started to push the small arm 8 to move up and down, so that the working part 10 is further driven to move up and down, and the distance between the working part 10 and the trolley is further adjusted; the arrangement of the leveling mechanism enables the working component 10 to be always vertical to the ground, so that the pushing and pulling of the cart can be better completed.

Preferably, the leveling mechanism is a hydrostatic leveling mechanism of a hydraulic system in the prior art, the utility model is briefly described herein, the leveling mechanism comprises a leveling cylinder I11, one end of the leveling cylinder I11 is connected with the support 4, and the other end of the leveling cylinder I11 is connected with the large arm 5; the leveling mechanism further comprises a second leveling oil cylinder 12, one end of the second leveling oil cylinder 12 is connected with the small arm 8, and the other end of the second leveling oil cylinder 12 is connected with the connecting piece 7; a rodless cavity of the first leveling oil cylinder 11 is connected with a rodless cavity of the second leveling oil cylinder 12, and a rod cavity of the first leveling oil cylinder 11 is connected with a rod cavity of the second leveling oil cylinder 12; the above are hydrostatic leveling mechanisms in the prior art, and details are not described; the arrangement of the leveling mechanism enables the connecting piece 7 and the working component 10 to be perpendicular to the ground all the time, so that the trolley can be better operated.

Example six:

in the embodiment, the small arm 8 is described, and the small arm 8 adopts a parallelogram structure, so that the connecting piece 7 and the working part 10 are further ensured to be vertical to the ground; the small arm 8 comprises a first cross rod 13 and a second cross rod 14 which are parallel to each other, one end of the first cross rod 13 and one end of the second cross rod 14 are connected with the connecting piece 7, the other end of the first cross rod 13 and the other end of the second cross rod 14 are connected with a first connecting piece 15, the working part 10 is connected with a first connecting piece 15, the first connecting piece 15 is perpendicular to the ground all the time, and therefore the working part 10 is guaranteed to be perpendicular to the ground all the time; the small arm 8 is in a parallelogram structure by the connecting piece 7, the connecting piece I15, the cross bar I13 and the cross bar II 14; thereby further ensuring that the working member 10 is always perpendicular to the ground and better completing the operation of the cart.

Example seven:

in this embodiment, in order to further adjust the contact between the working component 10 and the cart to better complete pushing or pulling back of the cart, preferably, the cart device for the crossing further includes a swinging device, and the swinging device is configured to push the pitching device to swing, so as to better complete the contact adjustment between the cart device and the cart; the swinging device comprises a swinging power source 16, the swinging power source 16 adopts a swinging oil cylinder in the prior art, the swinging power source 16 is connected with a support 4, and the support 4 is connected with a slewing bearing 18 through a rotating shaft 17; the swing power source 16 pushes the support 4 to rotate along the rotary bearing 18, so that the pitching device swings, and the working component 10 swings at a certain angle, namely, the working component 10 rotates at a certain angle, so that the contact adjustment between the trolley and the trolley can be better completed.

Preferably, in order to better realize the fixation of the slewing bearing 18, a first support plate 19 is arranged on the outer side of the slewing bearing 18, a second support plate 20 is connected to the lower part of the first support plate 19, and the second support plate 20 is connected with the moving bracket 2; the second support plate 20 and the movable support 20 can be fixedly connected by welding, bonding and the like, and can also be detachably connected by bolts, screws and the like.

Example eight:

the cart mechanism 3 in the embodiment is used for being matched with the support 1, so that the operation of carts such as the bottom of a mine and the like can be better finished; specifically, the support 1 is connected with a movable support 2 through a moving device, and a cart mechanism 3 is arranged on the movable support 2, namely the movable support 2 is connected with a support 4; the movable support 2 moves along the support 1 under the action of the moving device, so that the trolley mechanism 3 is driven to move along the support 1, and the distance between the trolley mechanism 3 and a trolley of a mine is adjusted.

Preferably, the moving means comprises a slide rail groove 21, the slide rail groove 21 is arranged on one side of the bracket 1 close to the cart mechanism 3, namely on the inner side of the bracket 1; the slide rail groove 21 is preferably a C-shaped groove, a roller 22 matched with the slide rail groove 21 is arranged in the slide rail groove 21, the roller 22 is connected with a connecting shaft 23, the connecting shaft 23 is connected with the movable support 2, and the roller 22 is connected with a power device; a bearing 24 is arranged on the outer side of the connecting shaft 23, a bearing sleeve 25 is arranged on the outer side of the bearing 24, and the bearing sleeve 25 is arranged on the movable bracket 2; the roller 22 is connected with a power device; the power device drives the roller 22 to rotate, so that the roller moves along the slide rail groove 21 and drives the moving support 2 to move, thereby driving the cart mechanism 3 to move, adjusting the relative position between the cart mechanism 3 and the cart, preparing for better pushing the cart in the follow-up process and improving the accuracy of the cart; the power device adopts the form of an electric roller, can also adopt a mode that a rotating shaft is connected between two rollers, the rotating shaft is provided with a motor, the rollers are driven by the motor to move, and can also adopt a mode that the rollers are matched with a belt, which are power devices in the prior art.

Example nine:

in the embodiment, a moving bracket 2 is described, where the moving bracket 2 includes a first cross beam 35 and a second cross beam 36, one end of the first cross beam 35 is connected with one end of the second cross beam 36 through a first longitudinal beam 37, the other end of the first cross beam 35 is connected with a second longitudinal beam 38, and the second longitudinal beam 38 is connected with a first oblique beam 39; the other end of the second cross beam 36 is connected with a third longitudinal beam 40, the third longitudinal beam 40 is connected with a second oblique beam 41, and the first oblique beam 39 and the second oblique beam 41 are connected through a fourth longitudinal beam 42; a movable part of the pitching device is arranged among the second longitudinal beam 38, the first oblique beam 39, the third longitudinal beam 40, the second oblique beam 41 and the fourth longitudinal beam 42, so that the pitching device and the movable bracket 2 are prevented from interfering; more preferably, in order to increase the strength of the mobile carriage 2; the longitudinal beam four 42 is connected with the longitudinal beam five 43, and two ends of the longitudinal beam five 43 are respectively connected with the cross beam one 35 and the cross beam two 36; a first supporting cross beam 44 is arranged between the first longitudinal beam 37 and the second longitudinal beam 38, and a second supporting cross beam 45 is arranged between the first longitudinal beam 37 and the third longitudinal beam 40; a third supporting cross beam 46 and a fourth supporting cross beam 47 are arranged between the first longitudinal beam 37 and the fifth longitudinal beam 43; a first supporting longitudinal beam 48 is arranged between the first cross beam 35 and the first oblique beam 39, and a second supporting longitudinal beam 49 is arranged between the second cross beam 36 and the second oblique beam 41; a first supporting oblique beam 50 is arranged between the first oblique beam 39 and the fourth longitudinal beam 42, and a second supporting oblique beam 51 is arranged between the second oblique beam 41 and the fourth longitudinal beam 42.

The upper cross beams, the longitudinal beams and the oblique beams are fixed by well-known methods such as welding, bonding, screw connection and the like.

Example ten:

in this embodiment, a support 1 is described, specifically, the support 1 includes a bottom plate 52, a supporting oblique beam 53 is disposed on the bottom plate 52, a rail beam 54 is disposed on the top of the supporting oblique beam 53, and rail beam flanges 55 are disposed at two ends of the rail beam 54; the slide rail groove 21 is arranged on the inner side of the track beam 54; the rail groove 21 and the rail beam 54 are fixed by well-known welding, screw connection, and the like, and it should be noted that the rail beam flange 55 is provided so as not to interfere with the rail groove 21; the support oblique beam 53 is connected and formed to the base plate 52 and the rail beam flange 55 by a known method such as welding or integral molding.

The adjacent supports 1 are connected through the rail beam flanges 55 and the bolts, the supports 1 are convenient to transport due to the arrangement of the support 1 structure, and particularly when the support is used in occasions such as mines and the like, the supports 1 are required to be detachable due to limited space, and the transportation is convenient.

In the embodiment, the support is disassembled into a plurality of devices with smaller volumes, and the supports are connected through the rail beam flanges after being transported to a fixed place; the design of this kind of structure is convenient for support transportation, and especially when being used for occasions such as mine, because the space is limited, so need the support can dismantle, the transportation of being convenient for has reduced the motion degree of difficulty, has improved conveying efficiency.

The working principle of the utility model is as follows: the telescopic oil cylinder 26 is started to drive the lifting piece 27 to move up and down, so that the gripper 29 is driven to grip or release; when the telescopic oil cylinder 26 drives the lifting piece 27 to move upwards, the upper parts of the hinged parts of the two grippers 29 move towards the inner side of the sliding groove 28 in opposite directions, so that the grippers 29 are used for gripping the workpiece 31, and otherwise, the workpiece 31 is released; the outer side of the hand grip 29 is provided with a plane 32, and the cart can be pushed or pulled back through the plane 32.

In conclusion, the working parts can be used for pushing and pulling back the cart and grabbing workpieces, so that the utilization rate and the universality are improved; the driving oil cylinder 26 is started to push the rotating part 33 to rotate, so that the whole gripper 29 is driven to rotate, the angle of the gripper 29 is adjusted, and the angle between a plane and the trolley is adjusted; more preferably, the follower is arranged to adjust the contact surface between the plane 32 of the hand grip 29 and the cart at any time, and particularly, the contact can be better realized under the condition of a curve and the like, so that the cart can be better operated, the follower is more stable from stopping to starting, the brake is also stable, and the driving oil cylinder cannot be unloaded when the cart is used.

The devices and connection relationships that are not described in detail above all belong to the prior art, and the present invention is not described in detail herein.

The standard parts used in the application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, and machines, parts and equipment adopt conventional models in the prior art.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are included in the scope of protection of the present invention.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present application will not be described separately.

In addition, any combination of the various embodiments of the present application can be made, and the present application should be considered as disclosed in the present application as long as the combination does not depart from the spirit of the present application.

Claims (7)

1. The working part for the trolley mechanism comprises a grabbing mechanism and is characterized in that the grabbing mechanism comprises a telescopic oil cylinder (26), the telescopic oil cylinder (26) is connected with a lifting piece (27), sliding grooves (28) are symmetrically formed in the lifting piece (27) relative to the middle plane of the lifting piece, grabbing hands (29) are connected in the sliding grooves (28), and the grabbing hands (29) are hinged; the outer side of the handle (29) is provided with a plane (32).

2. A working part for a trolley mechanism according to claim 1 characterized in that a turning piece (33) is connected to the hinged joint of the grab handle (29), and the turning piece (33) is connected to the driving cylinder (34).

3. The operating member for a stroller mechanism according to claim 1, wherein the hand grip comprises a hinge portion (30), the hinge portion (30) is connected to the sliding groove (28), the hinge portion (30) is provided with a hinge hole, and the hinge portion (30) is hinged through the hinge hole; the lower part of the hinge part (30) is provided with a grabbing part (57), and the outer sides of the grabbing parts (57) are provided with planes (32).

4. The working component for the trolley mechanism as claimed in claim 2, wherein the rotating member (33) comprises a mounting portion (58), the handle (29) and the lifting member (27) are both disposed in the mounting portion (58), a connecting hole (59) is formed on the rotating member (33) at the outer side of the mounting portion (58), the rotating member (33) and the handle (29) are hinged through the connecting hole (59) and the hinge hole, the rotating member (33) is connected with the driving cylinder (34), and the driving cylinder (34) is disposed on the upper plane of the rotating member (33); a telescopic oil cylinder mounting hole (60) is formed in the top of the rotating part (33), and the telescopic oil cylinder (26) penetrates through the telescopic oil cylinder mounting hole (60) and is connected with the lifting part (27) in the mounting part (58).

5. An operating member for a trolley mechanism according to claim 2, characterized in that the telescopic cylinder (26) is connected to the first connecting member (15), the telescopic cylinder (26) being arranged inside the first connecting member (15).

6. A working part for a pushing mechanism according to claim 5, characterized in that the bottom of the first connecting member (15) is provided with a rotating member mounting hole, the rotating member (33) passes through the rotating member mounting hole, and the driving cylinder (34) passes through a side hole of the first connecting member (15) to be connected with the top of the rotating member (33).

7. A working part for a trolley mechanism according to any one of claims 1 to 6, characterized in that the handgrip (29) is connected to a following means comprising a three-position four-way valve connected to a driving cylinder (34).

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