CN115009331B - Transport cart - Google Patents

Abstract

The utility model relates to a transport cart, it includes the frame, transport the base station, elevating system and assembly pulley, transport the base station and follow y axle direction sliding connection in the frame, elevating system sets up on the frame and is used for driving transport the base station and follow y axle direction sliding, the assembly pulley is including installing in the installation department that transports the base station and a plurality of pulleys that set up side by side, a plurality of pulleys rotate and connect in the installation department, the assembly pulley is equipped with at least two along the z axle direction, and the assembly pulley is used for supporting detection device and is used for supplying detection device lower terminal surface slip butt; the x axis, the y axis and the z axis are perpendicular in pairs, and the y axis points to the vertical direction. Pushing the cart to be close to the device mounting seat, and adjusting the height of the conveying base by the lifting mechanism, so as to adjust the height of the pulley block to be flush with the device mounting seat. And then will wait to overhaul the device and promote to the assembly pulley on the device mount pad, reduce thrust through the assembly pulley, be convenient for personnel will wait to overhaul the device and promote to the shallow on, labour saving and time saving efficiency is higher.

Description

Transport cart

Technical Field

The present application relates to a transport cart.

Background

In daily production, the functional devices of large-scale equipment need to be maintained and detected regularly. In the maintenance and inspection process, other devices are prone to interfering with the maintenance work, so that workers typically transport them to a cart and to the maintenance site.

Referring to fig. 1, in an operating state, a device to be overhauled 0 is disposed at an upper end of a device mounting seat 02, two sides of the device to be overhauled 0 are both connected with a wing plate 01 horizontally disposed, and the wing plate 01 is disposed on a bearing part 021 disposed on the device mounting seat 02. However, due to the fact that the device to be overhauled is large in size and heavy in mass, accurate parts in part of the device are easy to shake in the process of carrying the device to the trolley by personnel, and carrying operation by personnel is inconvenient.

Disclosure of Invention

In order to facilitate transportation of a device to be overhauled, the application provides a transportation trolley.

The application provides a transport trolley adopts following technical scheme:

the transportation trolley comprises a frame, a transportation base, a lifting mechanism and a pulley block, wherein the transportation base is connected to the frame in a sliding manner along the y-axis direction, the lifting mechanism is arranged on the frame and used for driving the transportation base to slide along the y-axis direction, the pulley block comprises a mounting part and a plurality of pulleys, the mounting part is used for being mounted on the transportation base, the pulleys are rotationally connected to the mounting part, the pulleys are arranged side by side along the x-axis direction, the rotation axes of the pulleys are positioned in the same horizontal plane and are parallel to the z-axis, the pulley block is provided with at least two pulleys along the z-axis direction, and the pulley block is used for supporting a device to be overhauled and is used for enabling the lower end face of the device to be overhauled to slide and abut;

the x axis, the y axis and the z axis are perpendicular in pairs, and the y axis points to the vertical direction.

Through adopting above-mentioned technical scheme, when needing to carry to wait to overhaul the device, promote the shallow to be close to the device mount pad, transport the height of base station through elevating system regulation, and then adjust the height of assembly pulley and make it and device mount pad parallel and level. And then will wait to overhaul the device from the device mount pad promote to the assembly pulley on, reduce thrust through the assembly pulley, be convenient for personnel will wait to overhaul the device promote to the shallow on and then transport to the maintenance place.

Preferably, the conveying base station comprises a conveying table surface and a movable table surface, the conveying table surface is horizontally arranged and is connected to the frame in a sliding mode, the movable table surface is connected to the upper surface of the conveying table surface in a sliding mode along the x-axis direction, the mounting part is mounted on the movable table surface, a connecting hole is formed in the movable table surface, and the connecting hole is used for allowing a bolt to pass through and then be connected to the device mounting seat.

By adopting the technical scheme, as the cart is pushed to be close to the device mounting seat, a certain distance exists between the conveying base and the device mounting seat, and the device to be overhauled is difficult to slide to the pulley block. The pulley block is made to be close to the device mounting seat as much as possible through the sliding movement table top, the distance from the device to be overhauled to the pulley block is shortened, and time and labor are saved conveniently.

Preferably, each pulley block is provided with a hydraulic buffer correspondingly at two ends along the x-axis direction, a hydraulic rod of the hydraulic buffer is connected with the lower end of the pulley block, and the hydraulic buffer is used for buffering the pressure of the pulley block in the y-axis direction.

Through adopting above-mentioned technical scheme, when elevating system highly adjusts the assembly pulley, there is the difference in height between assembly pulley up end and the device mount pad up end easily, and this kind of difference in height makes to wait to overhaul the device and is difficult to promote to the assembly pulley on. Thereby compensating the height difference between the pulley block and the device mounting seat through the hydraulic buffer. During the use, adjust the assembly pulley to slightly be higher than the device mount pad, and then promote to wait to overhaul the device and be close to the assembly pulley, wait to overhaul the device and order about the assembly pulley downwardly moving after the pulley butt, and then make the assembly pulley up end just be used for supplying to wait to overhaul the device slip butt, be convenient for wait to overhaul the device and remove to the assembly pulley smoothly.

Preferably, the device further comprises a push block and a locking rod, wherein the push block is used for being installed on the device to be overhauled and sliding along the y-axis direction, and an abutting inclined plane is arranged on the push block; the locking rod is arranged along the x-axis direction and is installed on any hydraulic buffer on the x-axis direction, the locking rod is connected with the hydraulic rod of the hydraulic buffer in a sliding mode along the x-axis direction, a locking groove is formed in the conveying base, and the abutting inclined surface is used for being in sliding abutting connection with one end of the locking rod and pushing the locking rod to slide along the x-axis direction and driving the other end of the locking rod to be clamped into the locking groove.

Through adopting above-mentioned technical scheme, when waiting to overhaul the device and sliding to the assembly pulley on the back order pulley downwardly moving, the ejector pad removes and promotes the locking lever and slide along waiting to overhaul the device slip direction this moment, thereby the locking lever clamps into the descending height of locking groove fixed assembly pulley under the promotion of ejector pad for wait to overhaul the device most when being in butt with the assembly pulley, the assembly pulley can't move downwardly under the action of gravity, and then the restriction device is crooked when removing, makes the device can be smooth slide to the assembly pulley along x axle that is the horizontal direction on. Meanwhile, when one end of the locking rod is clamped into the locking groove, the locking rod is abutted with the abutting inclined surface so as to push the pushing block to slide upwards, and therefore the locking rod cannot interfere the moving path of the pushing block. Furthermore, the pulley block is fixed by utilizing the movement of the pushing block, so that the linkage effect is achieved, and the action of additionally applying the fixed position to the pulley block is not required.

Preferably, the device further comprises a reset spring and a fixed rod, wherein one end of the reset spring is fixedly connected with the push block, the other end of the reset spring is connected with the device to be overhauled, one end of the fixed rod is connected with the device to be overhauled after sequentially penetrating through the push block and the reset spring, and the push block is slidably connected with the fixed rod along the y-axis direction.

Through adopting above-mentioned technical scheme, reset spring realizes that the ejector pad loses behind the ascending butt of locking lever can reply to original relative position between the assembly pulley, and the fixed lever restriction ejector pad x axial direction remove for after ejector pad and the locking lever butt, the locking lever can't push away the ejector pad along the opposite direction of device direction of movement, guarantees that the ejector pad can be with the locking lever card income locking inslot.

Preferably, the device further comprises a detachable base, one end of the reset spring, which is far away from the push block, is fixedly connected with the detachable base, one end of the fixing rod is fixedly connected with the detachable base, and the detachable base is used for allowing a bolt to pass through and then is connected with the device to be overhauled.

Through adopting above-mentioned technical scheme, according to maintenance or working condition, will dismantle the base and pass through the bolt and install on the device or dismantle it for push block, reset spring and dead lever etc. are difficult for interfering maintenance operation or other work.

Preferably, the device further comprises a mounting seat, a driving rod, a driven rod and a tensioning spring, wherein the mounting seat is mounted on the conveying base, the driving rod and the driven rod are both connected to the mounting seat in a rotating way around a z-axis, the rotating axis of the driving rod and the rotating axis of the driven rod are coaxially arranged and are both positioned at one end of the device, and two ends of the tensioning spring are respectively fixedly connected with the other end of the driving rod and the other end of the driven rod; the mounting seat is provided with a limiting part which is positioned at two sides of the driving rod rotating shaft along the x-axis direction, and the limiting part is used for limiting the driving rod and the driven rod to be mutually close; one end of the driving rod is used for being in sliding butt with the butt inclined plane, and the driving rod is used for pushing the locking rod to slide.

By adopting the technical scheme, when the device slides onto the pulley block, the abutting inclined plane pushes one end of the driving rod to rotate and approach the locking groove, one end of the tensioning spring is driven by the driving rod to approach the locking groove and be stretched, the driven rod further rotates under the elastic restoring force of the tensioning spring and approaches the locking groove, and the limiting part limits the states of the driving rod and the driven rod; the driving rod pushes the locking rod to slide in the process of rotating and approaching the locking groove, and finally drives the locking rod to be clamped into the locking groove.

When the device is overhauled, the device is required to slide onto the device mounting seat from the conveying base, at the moment, the abutting inclined plane pushes the driving rod to rotate and keep away from the locking groove, one end of the tensioning spring is driven by the driving rod to keep away from the locking groove and be stretched, the driven rod further rotates under the elastic restoring force of the tensioning spring and keeps away from the locking groove, and the limiting part limits the states of the driving rod and the driven rod; the driving rod rotates and pushes the locking rod to slide in the process of approaching to the locking groove and finally drives the locking rod to slide out of the locking groove, so that the pulley block is reset after the device completely loses pressure on the pulley block. The pulley group locking and resetting functions are realized through the same workpiece, the workpiece for realizing the locking and resetting functions is not required to be independently arranged, and the pulley group locking and resetting mechanism is simple in structure and convenient to realize.

Preferably, one end of the locking rod, which is far away from the locking groove, is provided with a reversing rod, two ends of the reversing rod are respectively connected with the locking rod and the driving rod in a rotating mode, a rotating axis of the reversing rod is parallel to the z axis, and the rotating axis of the reversing rod is far away from the rotating axis of the driving rod.

Through adopting above-mentioned technical scheme, because the device slides and can drive the assembly pulley and move down after going up to the assembly pulley, and then hydraulic stem and the locking lever of hydraulic buffer all move down, adapt to the locking lever y-axis direction through the switching-over pole and be the ascending removal of vertical direction promptly, and then rotate and be close to the in-process of locking groove at the initiative pole, the one end of switching-over pole moves down and promotes the locking lever card and go into the locking inslot. If the locking rod is directly connected with the driving rod, the locking rod can be bent and deformed, and the locking rod cannot be bent and deformed through the reversing rod.

Preferably, on the direction of the x axis, both ends of the installation part are provided with limiting plates, the installation part is provided with a splicing groove, one limiting plate is fixedly connected with the installation part and used for limiting the device to be overhauled to move along the x axis, and the other limiting plate is used for being embedded in the splicing groove and used for limiting the device to be overhauled to move along the x axis.

Through adopting above-mentioned technical scheme, utilize fixed limiting plate restraining device to slip assembly pulley under the inertial action of thrust, wait to put after the complete slip to the assembly pulley, insert the grafting inslot with another limiting plate, restrict the device round trip movement in-process of shallow removal through two limiting plates.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the device to be overhauled needs to be carried, the trolley is pushed to be close to the device mounting seat, the height of the conveying base station is adjusted through the lifting mechanism, and then the height of the pulley block is adjusted to enable the pulley block to be flush with the device mounting seat. And then will wait to overhaul the device from the device mount pad promote to the assembly pulley on, reduce thrust through the assembly pulley, be convenient for personnel will wait to overhaul the device promote to the shallow on and then transport to the maintenance place.

2. When the lifting mechanism adjusts the height of the pulley block, the upper end surface of the pulley block is easy to be in height difference with the upper end surface of the device mounting seat, and the device to be overhauled is difficult to push onto the pulley block due to the height difference. Thereby compensating the height difference between the pulley block and the device mounting seat through the hydraulic buffer. During the use, adjust the assembly pulley to slightly be higher than the device mount pad, and then promote to wait to overhaul the device and be close to the assembly pulley, wait to overhaul the device and order about the assembly pulley downwardly moving after the pulley butt, and then make the assembly pulley up end just be used for supplying to wait to overhaul the device slip butt, be convenient for wait to overhaul the device and remove to the assembly pulley smoothly.

3. The pulley block is fixed by utilizing the movement of the pushing block, so that the linkage effect is achieved, and the action of applying the fixed position to the pulley block is not required.

Drawings

Fig. 1 is a schematic structural view of a device to be serviced and a device mount.

Fig. 2 is a schematic view of the structure of the carriage, the transport base and the lifting mechanism in the embodiment of the present application.

Fig. 3 is a schematic structural view of the conveying base, the pulley block, the power assisting member and the locking lever in the embodiment of the present application.

Fig. 4 is an enlarged view at B in fig. 3.

Fig. 5 is a schematic structural view of a pusher in an embodiment of the present application.

Fig. 6 is an enlarged view at C in fig. 3.

Fig. 7 is a schematic diagram of the device to be serviced pushed fully onto the pulley block.

Reference numerals illustrate: 0. the device to be overhauled; 01. a wing plate; 02. a device mounting base; 021. a support part;

1. a frame; 2. a transport base; 21. a transport table; 211. a slide rail; 22. moving the table top; 221. a locking block; 2211. a locking groove; 3. a lifting mechanism; 31. a drive gear; 32. a chain; 33. a drive assembly;

4. pulley block; 41. a mounting part; 411. a limiting plate; 412. a plug-in groove; 42. a pulley; 43. a connecting plate; 431. a connection hole; 5. a hydraulic buffer;

6. a pushing member; 61. a detachable base; 62. a pushing block; 621. abutting the inclined plane; 63. a return spring; 64. a fixed rod; 7. a booster; 71. a mounting base; 711. a first limit part; 712. a second limit part; 72. a driving rod; 73. a passive lever; 74. tensioning the spring; 8. a locking lever; 81. a reversing lever.

Detailed Description

The present application is described in further detail below in conjunction with figures 2-7.

In the embodiment of the application, directions are represented by an x axis, a y axis and a z axis, the x axis, the y axis and the z axis are perpendicular to each other, and the y axis points to a vertical direction.

Referring to fig. 2, the embodiment of the application discloses a transport cart comprising a frame 1, a transport base 2 and a lifting mechanism 3.

The transport base 2 includes a transport table 21 and a moving table 22. The conveying table board 21 is connected to the frame 1 in a sliding manner along the y-axis direction, a sliding rail 211 is fixedly connected to the conveying table board 21, the sliding rail 211 extends along the x-axis direction, and the movable table board 22 is horizontally arranged and connected to the sliding rail 211 in a sliding manner.

The lifting mechanism 3 is mounted on the frame 1. The lifting mechanism 3 includes a drive gear 31, a chain 32, and a drive assembly 33. The rotation axis of the driving gear 31 is arranged (horizontally arranged) in the direction perpendicular to the y-axis, one end of the chain 32 bypasses the driving gear 31 from above the driving gear 31 and is fixedly connected to the frame 1 downward, and the other end of the chain 32 is in a vertical state and is fixedly connected to the conveying table 21.

The driving assembly 33 can adopt an air cylinder, and the piston rod of the air cylinder is rotationally connected with the driving gear 31 to drive the conveying table top 21 to move along the y-axis direction; alternatively, the driving assembly 33 may also use a hydraulic cylinder, and the driving gear 31 is rotatably connected to the piston rod to drive the conveying table 21 to move upwards along the y-axis direction, and the exhausting of the hydraulic cylinder drives the conveying table 21 to move downwards along the y-axis direction, so that in this embodiment, the driving assembly 33 uses the hydraulic cylinder.

Referring to fig. 3, a transport trolley further comprises a hydraulic buffer 5 and a pulley block 4. The hydraulic buffer 5 is installed on the movable table 22, and the hydraulic rod of the hydraulic buffer 5 is vertically arranged.

The pulley block 4 includes a mounting portion 41 and a plurality of pulleys 42 rotatably connected to the mounting portion 41. The installation department 41 fixed connection is in the upper end of the hydraulic stem of hydraulic buffer 5, and hydraulic buffer 5 is used for buffering the vertical direction's of assembly pulley 4 pressure. The pulleys 42 are arranged side by side in the x-axis direction, and the axes of rotation of the pulleys 42 are in the same horizontal plane and parallel to the z-axis. Two pulley blocks 4 are arranged along the z-axis direction, and two hydraulic buffers 5 are correspondingly arranged at two ends of each pulley block 4 along the x-axis direction. The mounting portion 41 is fixedly connected with a connecting plate 43, the connecting plate 43 is provided with a connecting hole 431, and the connecting hole 431 is used for allowing a bolt to pass through and then be connected to the supporting portion 021.

Both ends of the mounting portion 41 are provided with a limit plate 411 provided along the y-axis direction (vertical direction). A limiting plate 411 is fixedly connected to the mounting portion 41, and the upper end of the limiting plate 411 is higher than the upper end face of the pulley 42.

Referring to fig. 3 and 4, the mounting portion 41 is provided with a plugging slot 412, the plugging slot 412 is located at one end far away from the limiting plate 411 and between any two pulleys 42, the other limiting plate 411 is used for being embedded into the plugging slot 412, and the upper end of the limiting plate 411 is higher than the upper end face of the pulley 42.

Referring to fig. 3 and 5, a transport cart further includes a pusher 6, a booster 7, and a locking lever 8.

Referring to fig. 5, the pusher 6 includes a detachable base 61, a pusher block 62, a return spring 63, and a fixing lever 64.

The detachable base 61 is used for allowing bolts to pass through and then be connected to the wing plate 01. The reset spring 63 is vertically arranged, the upper end of the reset spring 63 is fixedly connected with the detachable base 61, the push block 62 is fixedly connected with the lower end of the reset spring 63, one end of the fixed rod 64 penetrates through the push block 62 and the reset spring 63 and is fixedly connected with the detachable base 61, the fixed rod 64 is coaxial with the reset spring 63, and the push block 62 is slidably connected with the fixed rod 64 along the y-axis direction. The push block 62 is provided with an abutment inclined surface 621 symmetrically arranged about the axis of the fixed lever 64, and the distance between the abutment inclined surface 621 and the axis of the fixed lever 64 increases as approaching the return spring 63.

Referring to fig. 6, the booster 7 includes a mount 71, an active lever 72, a passive lever 73, and a tension spring 74.

The mount 71 is mounted on the movable table 22, and the mount 71 is located near one end of the mounting groove in the x-axis direction. The driving lever 72 and the driven lever 73 are both rotatably connected to the mount 71 about the z-axis, and the rotation axis of the driving lever 72 and the rotation axis of the driven lever 73 are coaxially disposed and are both located at one end thereof. Both ends of the tension spring 74 are fixedly connected with the other end of the driving rod 72 and the other end of the driven rod 73, respectively.

The mounting seat 71 is fixedly connected with a limiting part, the limiting part is positioned at two sides of the rotation axis of the driving rod 72 or the driven rod 73 along the x-axis direction, the limiting part is used for being abutted with the driving rod 72 and the driven rod 73, and the limiting part is used for limiting the driving rod 72 and the driven rod 73 to be mutually close. The end of the driving rod 72 away from the rotation axis is used for sliding and abutting against the abutting inclined surface 621.

Referring to fig. 3, the lock lever 8 is provided (horizontally provided) in the x-axis direction and is mounted to any one of the hydraulic buffers 5 in the x-axis direction, the lock lever 8 is slidably connected to the hydraulic lever of the hydraulic buffer 5 in the x-axis direction, and one end of the lock lever 8 is rotatably connected to the reversing lever 81. One end of the reversing lever 81 is rotatably connected to the lock lever 8 about the z-axis, and the other end of the reversing lever 81 is rotatably connected to one end of the driving lever 72 away from the own rotation axis.

A locking block 221 is fixedly connected to the movable table 22, and the locking block 221 is located at one end far away from the plugging slot 412 along the x-axis direction. The locking block 221 is provided with a locking groove 2211 on a side facing the insertion groove 412. The end of the locking lever 8 remote from the reversing lever 81 is adapted to be snapped into the locking groove 2211.

Referring to fig. 6, the stopper includes a first stopper 711 and a second stopper 712. When the driving lever 72 and the driven lever 73 abut against the first limiting portion 711, the return spring 63 is located at a side of the rotation axis of the driving lever 72 away from the locking groove 2211, and the locking lever 8 is away from the locking groove 2211 (in fig. 3).

Referring to fig. 7, when the driving lever 72 and the driven lever 73 are abutted against the second stopper 712, the return spring 63 is located on a side of the rotation axis of the driving lever 72 toward the locking groove 2211 (in fig. 3), and the locking lever 8 is engaged into the locking groove 2211.

The implementation principle of the transport cart provided by the embodiment of the application is as follows:

when the device to be overhauled 0 is pushed onto the pulley block 4 from the device mounting seat 02, the driving rod 72 and the driven rod 73 are abutted against the first limiting part 711, and then the pushing piece 6 is mounted on the device to be overhauled 0 through bolts.

The height of the pulley block 4 is slightly higher than the bearing part 021 through the lifting mechanism 3, the movable table 22 is moved to enable the connecting plate 43 to be close to the device mounting seat 02, the distance between the pulley block 4 and the device mounting seat 02 is shortened, and fixation is achieved through bolts. Pushing the device to be overhauled 0 to enable the wing plate 01 to be abutted against the pulley 42, enabling the pulley block 4 to move downwards along the y axis under the pressing force of the device to be overhauled 0, enabling the upper end face of the pulley 42 and the supporting portion 021 to be kept in a horizontal state, and facilitating pushing the device to be overhauled 0 onto the pulley 42. At this time, the pushing block 62 pushes the driving rod 72 to rotate and approach the locking groove 2211, meanwhile, the return spring 63 is stretched, the driven rod 73 rotates and approaches the locking groove 2211 under the elastic restoring force of the return spring 63, and the reversing rod 81 moves along the x-axis and approaches the locking groove 2211, so that one end of the locking rod 8 is clamped into the locking groove 2211, and the purpose of fixing the height of the pulley block 4 is achieved. The driving lever 72 and the driven lever 73 are regulated by the second regulating portion 712. When the device 0 to be overhauled is further pushed onto the pulley 42, the pulley block 4 is limited to move downwards by the friction force between the locking rod 8 and the wall of the locking groove 2211, so that the upper end surface of the pulley 42 is always kept in a horizontal state with the bearing part 021, and people can push the device 0 to be overhauled conveniently, so that time and labor are saved, and the efficiency is high. Finally, one of the limiting plates 411 is embedded into the inserting groove 412, and the device 0 to be overhauled is limited by the two limiting plates 411.

After the overhauling is finished, the overhauling device 0 is pushed onto the device mounting seat 02 from the pulley block 4. The pushing block 62 pushes the driving rod 72 to rotate and move away from the locking groove 2211, at the same time, the return spring 63 is stretched, the driven rod 73 rotates and moves away from the locking groove 2211 under the elastic restoring force of the return spring 63, and the reversing rod 81 moves away from the locking groove 2211 along the x axis, so that one end of the locking rod 8 is taken out from the locking groove 2211, and the driving rod 72 and the driven rod 73 are limited through the first limiting part 711. When the device to be overhauled is completely pushed onto the device mounting seat 02, the pulley block 4 is reset because the pulley block 4 loses the limit of the locking rod 8 and the hydraulic buffer 5 drives the pulley block 4 to move upwards due to pressure difference.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (7)

1. A transport cart, characterized by: the device comprises a frame (1), a conveying base (2), a lifting mechanism (3) and a pulley block (4), wherein the conveying base (2) is connected to the frame (1) in a sliding manner along the y-axis direction, the lifting mechanism (3) is arranged on the frame (1) and used for driving the conveying base (2) to slide along the y-axis direction, the pulley block (4) comprises a mounting part (41) used for being mounted on the conveying base (2) and a plurality of pulleys (42) rotationally connected to the mounting part (41), the pulleys (42) are arranged side by side along the x-axis direction, the rotation axes of the pulleys (42) are positioned in the same horizontal plane and are parallel to the z-axis, and the pulley block (4) is provided with at least two pulleys along the z-axis direction and is used for supporting a to-be-overhauled device (0) and for sliding and abutting connection of the lower end face of the to-be-overhauled device (0).

The x axis, the y axis and the z axis are perpendicular to each other, and the y axis points to the vertical direction; the two ends of each pulley block (4) along the x-axis direction are correspondingly provided with hydraulic buffers (5), a hydraulic rod of each hydraulic buffer (5) is connected with the lower end of each pulley block (4), and each hydraulic buffer (5) is used for buffering the pressure of each pulley block (4) along the y-axis direction; the device further comprises a push block (62) and a locking rod (8), wherein the push block (62) is used for being installed on a device to be overhauled (0) and sliding along the y-axis direction, and an abutting inclined surface (621) is arranged on the push block (62); the utility model discloses a hydraulic buffer, including locking pole (8), locking base (2), locking pole (8), locking slope (621) are used for and are used for promoting locking pole (8) along the setting of x axis direction and install arbitrary hydraulic buffer (5) on x axis direction, locking pole (8) are along the hydraulic rod of x axis direction sliding connection in hydraulic buffer (5), be equipped with locking groove (2211) on transporting base (2), one end sliding butt with locking pole (8) just is used for promoting locking pole (8) along the sliding of x axial and order about the other end card of locking pole (8) go into in locking groove (2211).

2. The transport cart of claim 1, wherein: the conveying base station (2) comprises a conveying table top (21) and a movable table top (22), the conveying table top (21) is horizontally arranged and is connected to the frame (1) in a sliding mode, the movable table top (22) is connected to the upper surface of the conveying table top (21) in a sliding mode along the x-axis direction, the mounting portion (41) is mounted on the movable table top (22), a connecting hole (431) is formed in the movable table top (22), and the connecting hole (431) is used for a bolt to penetrate through and then is connected to the device mounting seat (02).

3. The transport cart of claim 1, wherein: still include reset spring (63) and dead lever (64), the one end of reset spring (63) with ejector pad (62) fixed connection, the other end of reset spring (63) is used for being connected with waiting to overhaul device (0), the one end of dead lever (64) is used for passing ejector pad (62) and reset spring (63) in proper order after being connected with waiting to overhaul device (0), ejector pad (62) are followed y axle direction sliding connection in dead lever (64).

4. A transport cart according to claim 3, characterized in that: the device is characterized by further comprising a detachable base (61), wherein one end, far away from the push block (62), of the return spring (63) is fixedly connected with the detachable base (61), one end of the fixing rod (64) is fixedly connected with the detachable base (61), and the detachable base (61) is used for allowing a bolt to pass through and then is connected with the device (0) to be overhauled.

5. The transport cart of claim 1, wherein: the device comprises a conveying base (2), and is characterized by further comprising a mounting seat (71), a driving rod (72), a driven rod (73) and a tensioning spring (74), wherein the mounting seat (71) is mounted on the conveying base (2), the driving rod (72) and the driven rod (73) are connected to the mounting seat (71) in a rotating mode around a z-axis, a rotating axis of the driving rod (72) and a rotating axis of the driven rod (73) are coaxially arranged and are located at one end of the driving rod, and two ends of the tensioning spring (74) are fixedly connected with the other end of the driving rod (72) and the other end of the driven rod (73) respectively; the mounting seat (71) is provided with a limiting part which is positioned at two sides of the rotating shaft of the driving rod (72) along the x-axis, and the limiting part is used for limiting the driving rod (72) and the driven rod (73) to be mutually close; one end of the driving rod (72) is used for being in sliding abutting connection with the abutting inclined surface (621), and the driving rod (72) is used for pushing the locking rod (8) to slide.

6. The transport cart of claim 5, wherein: the one end that locking lever (8) kept away from locking groove (2211) is equipped with switching-over pole (81), the both ends of switching-over pole (81) are rotated respectively and are connected in locking lever (8) and initiative pole (72), the axis of rotation and the z axle of switching-over pole (81) are parallel, just the axis of rotation of switching-over pole (81) is kept away from the axis of rotation of initiative pole (72).

7. The transport cart of claim 1, wherein: along x axis direction, both ends of installation department (41) all are equipped with limiting plate (411), be equipped with grafting groove (412) on installation department (41), one limiting plate (411) fixed connection just is used for restricting to wait to overhaul device (0) along x axial displacement in installation department (41), another limiting plate (411) are used for embedding in grafting groove (412) and are used for restricting to wait to overhaul device (0) along x axial displacement.