CN113693837A

CN113693837A - Transfer equipment and vehicle with same

Info

Publication number: CN113693837A
Application number: CN202111020674.4A
Authority: CN
Inventors: 富冠男; 李国军
Original assignee: Shenyang Jietong Fire Truck Co ltd
Current assignee: Shenyang Jietong Fire Truck Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-11-26

Abstract

The application relates to the technical field of safety rescue equipment, and provides a transfer device and a vehicle with the transfer device. The transfer device comprises: the bracket is provided with a first positioning piece; the stretcher is provided with a second positioning piece matched with the first positioning piece, and when the first positioning piece is in butt joint with the second positioning piece, the stretcher moves along the bracket; the fixing mechanism is arranged on the bracket, so that when the stretcher moves to a preset position along the bracket, the fixing mechanism is connected with the stretcher, and the stretcher is fixed on the bracket. Be equipped with first setting element and the second setting element that is used for connecting the location between bracket and the stretcher, effectively improved the stretcher and installed or the efficiency dismantled at the bracket.

Description

Transfer equipment and vehicle with same

Technical Field

The application relates to the technical field of safety rescue equipment, in particular to a transfer device and a vehicle with the same.

Background

Among the correlation technique, the fire engine of elevating includes flexible arm and installs at the terminal work platform of flexible arm, and the rescue personnel stands on work platform, relies on flexible arm to reach the rescue position with rescue personnel, need transport the wounded at the rescue in-process, because the work platform space is less, can't place the rescue stretcher, consequently can not carry out effectual transportation to the wounded that can't stand.

Based on this, the related art has installed the bracket on work platform's frame to install the stretcher on the bracket to this solves work platform and can't place the problem of stretcher because of the space is little. However, the maximum rescue height of elevating the fire truck can reach several tens of meters, the bracket and the stretcher are mounted on the frame of the working platform to transport the wounded, if the mounting of any two of the stretcher, the bracket and the working platform is unstable, the stretcher is very dangerous, and in addition, the mounting efficiency between any two of the stretcher, the bracket and the working platform will also seriously affect the rescue efficiency.

Disclosure of Invention

The application provides a transshipment equipment and have its vehicle to improve the performance of stretcher.

According to a first aspect of the present application, there is provided a transfer device comprising:

the bracket is provided with a first positioning piece;

the stretcher is provided with a second positioning piece matched with the first positioning piece, and when the first positioning piece is in butt joint with the second positioning piece, the stretcher moves along the bracket;

the fixing mechanism is arranged on the bracket, so that when the stretcher moves to a preset position along the bracket, the fixing mechanism is connected with the stretcher, and the stretcher is fixed on the bracket.

In one embodiment of the present application, one of the first positioning member and the second positioning member is at least one wheel body, and the other is a sliding groove.

In one embodiment of the present application, a protrusion is provided on the stretcher, and the fixing mechanism comprises a first fixing component comprising:

the locking plate is arranged on the bracket;

the spring bolt, the spring bolt is movably set up for the jam plate to make the spring bolt have with the spacing first position of protruding piece of jam plate, and release the second position of protruding piece.

In one embodiment of the application, a locking groove is arranged on the locking plate, and the locking bolt is rotatably arranged relative to the locking plate so as to switch between a first position and a second position;

when the lock tongue is located at the first position, the lock tongue limits the protruding part in the locking groove.

In one embodiment of the application, a groove is provided on the bolt, the groove has a first side wall section and a second side wall section, the first side wall section is located in the locking groove in a projection parallel to the side of the bolt when the bolt is located in the first position, and the second side wall section is located in the locking groove in a projection parallel to the side of the bolt when the bolt is located in the second position.

In one embodiment of the present application, the first fixing assembly further comprises:

and the stop piece is movably arranged relative to the bracket, so that the stop piece has a stop position for stopping the movement of the bolt and a release position for releasing the movement of the bolt.

In an embodiment of the application, a stopping groove is formed in the lock tongue, when the stop part is located at the stopping position, the stop part is located in the stopping groove to limit the lock tongue to rotate from the first position to the second position, and when the stop part is located at the releasing position, the stop part is separated from the stopping groove to enable the lock tongue to rotate from the first position to the second position.

the pull rod is connected with the stop piece;

the first elastic piece is sleeved on the pull rod, one end of the first elastic piece is abutted to the stop piece, and the stop piece compresses the first elastic piece when the stop piece moves from the stop position to the release position.

In one embodiment of the application, the pull rod is located within the bracket and an end of the pull rod remote from the stop is located at a first end side of the bracket.

In one embodiment of the present application, a latch is provided on the stretcher, the securing mechanism comprises a second securing component comprising:

and a shutter rotatably provided with respect to the holder so that the shutter has a coupling position to be coupled with the retainer and a disengagement position to be disengaged from the retainer.

In one embodiment of the present application, the second fixing assembly further comprises:

the connecting shaft is rotatably arranged relative to the bracket, and the baffle is arranged on the connecting shaft;

and the overturning handle is arranged on the baffle or the connecting shaft.

the locking seat is arranged on the bracket, and one end of the connecting shaft is rotatably arranged on the locking seat;

the unlocking pull rod is movably arranged relative to the bracket, so that the unlocking pull rod has a locking position for stopping the connecting shaft to rotate and an unlocking position for releasing the connecting shaft to rotate;

when the unlocking pull rod is located at the locking position, one end of the unlocking pull rod is located in the locking seat and is in limited contact with the connecting shaft located in the locking seat.

In one embodiment of the application, the circumferential surface of the connecting shaft comprises a curved surface and a plane, and when the unlocking pull rod is located at the locking position, the unlocking pull rod is in contact with the plane so as to limit the baffle plate to rotate from the connecting position to the disengaging position;

when the baffle rotates from the separation position to the connection position, the unlocking pull rod slides along the curved surface.

the limiting pin penetrates through the locking seat and is in contact with the connecting shaft so as to limit the rotation angle of the connecting shaft;

when the baffle is located at the connecting position, the limiting pin and the unlocking pull rod are respectively located on two opposite sides of the connecting shaft.

In one embodiment of the application, the unlocking pull rod is located in the bracket, and the other end of the unlocking pull rod, which is far away from the locking seat, is located at the first end side of the bracket.

the reset seat is arranged on the bracket, and the other end of the connecting shaft is rotatably arranged on the reset seat;

and one end of the third elastic piece is connected with the reset seat, and the other end of the third elastic piece is connected with the connecting shaft, so that when the baffle rotates from the separation position to the connection position, the connecting shaft twists the third elastic piece, so that when the unlocking pull rod is located at the unlocking position, the third elastic piece drives the baffle to rotate from the connection position to the separation position through the connecting shaft.

In one embodiment of the application, the catch is a hinge, or the length of the flap is adjustably set.

In one embodiment of the present application, the transfer device further comprises:

and the bracket is connected with the switching mechanism, and the switching mechanism is used for being connected with the working platform.

In one embodiment of the present application, the transfer device further comprises a rotation mechanism comprising:

the first connecting piece is connected with the bracket;

the second connecting piece is connected with the switching mechanism;

at least part of the first connecting piece is movably arranged to be connected with or separated from the second connecting piece, when the first connecting piece is connected with the second connecting piece, the bracket is fixedly arranged relative to the switching mechanism, and when the first connecting piece is separated from the second connecting piece, the bracket is movably arranged relative to the switching mechanism.

In one embodiment of the present application, a bracket includes:

the main frame, the stretcher and the fixing mechanism are all arranged on the main frame;

the reinforcing rod is arranged on the main frame;

the handrail is arranged on the side part of the main frame;

wherein, be provided with the connecting portion that is used for connecting safety arrangement on the main frame, and/or be provided with the headspace that is used for placing rescue annex on the main frame.

According to a second aspect of the application, a vehicle is provided comprising a transfer device as described above.

In one embodiment of the present application, the vehicle is a fire engine.

The transfer equipment of this application embodiment includes bracket, stretcher and fixed establishment, through being provided with the bracket, and after first setting element docks with the second setting element, the stretcher can move along the bracket on the bracket to when the stretcher moves to preset position along the bracket, be fixed in the bracket with the stretcher through fixed establishment on, in order to carry out follow-up transport. Compare in and carry out the connected mode that fixes with stretcher and the manual adjustment of bracket rethread fixed establishment after aligning all around, be equipped with first setting element and the second setting element that is used for connecting the location between the bracket of this embodiment and the stretcher, effectively improved the efficiency of stretcher installation or dismantlement on the bracket.

Drawings

Various objects, features and advantages of the present application will become more apparent from the following detailed description of preferred embodiments thereof, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the application and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a schematic diagram illustrating the construction of a transfer device according to an exemplary embodiment;

FIG. 2 is a schematic illustration of a structure of a carriage of a transfer device according to an exemplary embodiment;

fig. 3 is a schematic illustration of a stretcher of a transfer device according to an exemplary embodiment;

FIG. 4 is a schematic illustration of a first stationary component of a transfer device according to an exemplary embodiment;

FIG. 5 is a schematic illustration of a second stationary component of a transfer device according to an exemplary embodiment;

FIG. 6 is an exploded schematic view of a second stationary component of a transfer device according to an exemplary embodiment;

FIG. 7 is a schematic illustration of an interface mechanism of a transfer device according to an exemplary embodiment;

fig. 8 is a schematic diagram illustrating a configuration of a rotation mechanism of a transfer device according to an exemplary embodiment.

The reference numerals are explained below:

10. a bracket; 11. a chute; 12. a main frame; 121. a first profile; 122. a second profile; 13. a reinforcing bar; 14. a handrail;

20. a stretcher; 21. a wheel body; 22. a boss member; 23. a fastener; 24. a support portion;

30. a first fixed component; 31. a locking plate; 311. a locking groove; 3111. a first portion; 3112. a second portion; 32. a latch bolt; 321. a groove; 322. a first sidewall segment; 323. a second sidewall section; 324. a stopper groove; 325. a first groove surface; 326. a second groove surface; 33. a stopper; 34. a pull rod; 35. a first elastic member; 36. a fixed block;

40. a second fixed component; 41. a baffle plate; 411. a fixing plate; 412. a chute; 413. a fastener; 42. a connecting shaft; 421. a curved surface; 422. a plane; 43. turning over the handle; 44. a locking seat; 45. unlocking the pull rod; 46. a second elastic member; 47. a spacing pin; 48. a reset seat; 49. a third elastic member;

50. a transfer mechanism; 51. a housing member; 52. a fixing member; 53. a reset member; 54. a connecting plate; 55. a fifth elastic member; 56. stretching the handle; 57. a wear pad;

60. a rotation mechanism; 61. a first connecting member; 611. positioning blocks; 612. a rotating shaft; 613. a handle; 614. a fourth elastic member; 62. a second connecting member; 621. positioning a plate; 622. a transfer shaft; 623. a slot; 624. the teeth are engaged.

Detailed Description

Exemplary embodiments that embody features and advantages of the present application are described in detail below in the specification. It is to be understood that the present application is capable of various modifications in various embodiments without departing from the scope of the application, and that the description and drawings are to be taken as illustrative and not restrictive in character.

In the following description of various exemplary embodiments of the disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the disclosure may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized, and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the disclosure, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this disclosure.

One embodiment of the present application provides a transfer device, please refer to fig. 1 to 8, the transfer device includes: the device comprises a bracket 10, wherein a first positioning piece is arranged on the bracket 10; the stretcher 20, wherein the stretcher 20 is provided with a second positioning piece matched with the first positioning piece, and when the first positioning piece is butted with the second positioning piece, the stretcher 20 moves along the bracket 10; a fixing mechanism provided on the bracket 10 to be connected with the bracket 10 to fix the stretcher 20 to the bracket 10 when the stretcher 20 is moved to a preset position along the bracket 10.

The transfer device of one embodiment of the present application includes a bracket 10, a stretcher 20 and a fixing mechanism, and by providing the bracket 10, and after the first positioning member is docked with the second positioning member, the stretcher 20 can move along the bracket 10 on the bracket 10, and when the stretcher 20 moves to a preset position along the bracket 10, the stretcher 20 is fixed on the bracket 10 by the fixing mechanism, so as to be subsequently transported. Compare in with stretcher 20 and the connection mode that rethread fixed establishment carries out the fixing after the manual adjustment is adjusted all around with bracket 10, be equipped with first setting element and the second setting element that is used for connecting the location between the bracket 10 of this embodiment and the stretcher 20, effectively improved the efficiency of stretcher 20 installation or dismantlement on bracket 10.

Alternatively, the stretcher 20 may be moved on the carriage 10 in the longitudinal direction of the carriage 10.

In one embodiment, as shown in fig. 1 to 3, the second positioning members are a plurality of wheel bodies 21 disposed on one side of the stretcher 20 close to the bracket 10, the first positioning members are sliding grooves 11 disposed on the bracket 10 at positions corresponding to the wheel bodies 21, and after the plurality of wheel bodies 21 are respectively guided into the corresponding sliding grooves 11, the stretcher 20 is pushed and pulled to mount and dismount the stretcher 20 and the bracket 10, so as to improve the convenience and stability of the movement of the stretcher 20 on the bracket 10, and to facilitate the transportation of the wounded on the stretcher 20.

In one embodiment, the second positioning element may be a plurality of wheel bodies 21, which are disposed on one side of the stretcher 20 close to the bracket 10, and each wheel body 21 is provided with a slot, and the first positioning element may be a rail or a sliding slot 11, which is disposed on the bracket 10 corresponding to the wheel body 21, and the slot on the wheel body 21 is matched with the rail to realize positioning.

In one embodiment, the second positioning element may be a plurality of sliding blocks disposed on one side of the stretcher 20 close to the bracket 10, and the first positioning element may be a sliding slot disposed on the bracket 10 corresponding to the sliding blocks, so as to realize positioning through the cooperation between the sliding blocks and the sliding slot.

The installation positions of the first positioning element and the second positioning element in the above embodiments can be exchanged.

Optionally, the number of the wheel bodies 21 may be at least 1, so as to ensure that the stretcher 20 is butted with the sliding groove 11 through at least 1 wheel body 21, thereby achieving positioning. In this embodiment, there may be 4 wheels 21, and 4 wheels 21 are respectively disposed at four diagonal positions of the stretcher 20, so as to improve the stability during the docking and sliding processes.

The wheel body 21 may be a rotating member in related art, such as a pulley or a roller, and is not limited herein, and a specific structural form of the sliding groove is not limited.

In one embodiment, as shown in fig. 3 and 4, the stretcher 20 is provided with a projection 22, the securing mechanism comprises a first securing assembly 30, the first securing assembly 30 comprises: a lock plate 31, the lock plate 31 being provided on the bracket 10; a locking tongue 32, the locking tongue 32 being movably arranged relative to the locking plate 31, such that the locking tongue 32 has a first position in which it is in engagement with the locking plate 31 to retain the protrusion 22, and a second position in which the protrusion 22 is released. The locking plate 31 and the locking tongue 32 of the first fixing assembly 30 can limit the stretcher 20, and prevent the stretcher 20 from being separated from the bracket 10.

Specifically, the locking tongue 32 may be disposed on the locking plate 31, or the locking tongue 32 may be disposed on the bracket 10, and the installation position thereof may not be limited on the basis of ensuring that the locking tongue 32 can be movably disposed relative to the locking plate 31. Before moving the stretcher 20 to the preset position, the locking tongue 32 releases the limit space between the locking plate 31 and the locking tongue 32, or when the stretcher 20 moves to contact with the locking tongue 32, the locking tongue 32 can be pushed to enable the locking tongue 32 to release the limit space between the locking plate 31 and the locking tongue 32, so that the protrusion 22 can enter the limit space formed between the locking plate 31 and the locking tongue 32, after the stretcher 20 is moved to the preset position, the locking tongue 32 limits the limit space between the locking plate 31 and the locking tongue 32, and the locking plate 31 and the locking tongue 32 form effective limit for the stretcher 20. When the stretcher 20 needs to be separated from the bracket 10, the locking tongue 32 can release the spacing space between the locking plate 31 and the locking tongue 32, so that the protrusion 22 is separated from the spacing space.

In one embodiment, as shown in fig. 4, the locking plate 31 is provided with a locking slot 311, the locking slot 311 has a first section 3111 with a flared opening and a second section 3112 with a U-shape, the first section 3111 and the second section 3112 are connected, and the protrusion 22 of the stretcher 20 slides into the second section 3112 with the guidance of the first section 3111 with the flared opening. The latch tongue 32 is rotatably provided with respect to the lock plate 31 to switch the latch tongue 32 between the first position and the second position; when the locking tongue 32 is located at the first position, the locking tongue 32 limits the protruding part 22 in the second portion 3112 of the locking groove 311, so as to prevent the protruding part 22 from disengaging from the locking groove 311.

Specifically, the latch tongue 32 is rotatably disposed on the bracket 10 or the lock plate 31, so that the latch tongue 32 is switched between the first position and the second position, the latch tongue 32 can rotate in the clockwise direction to open the opening of the locking groove 311, or the latch tongue 32 can rotate in the counterclockwise direction to open the opening of the locking groove 311, and after the protrusion 22 enters the locking groove 311 through the opening of the locking groove 311, the latch tongue 32 can rotate in the opposite direction, so as to ensure that the latch tongue 32 closes the opening of the locking groove 311, and thus prevent the protrusion 22 from disengaging from the locking groove 311. When the opening of the locking slot 311 needs to be released for the protrusion 22 to disengage from the locking slot 311, the locking tongue 32 can be rotated in a fixed direction, so as to release the opening of the locking slot 311. The switching of the locking tongue 32 between the first position and the second position is realized by means of rotation, so that the switching process is fast and stable.

In one embodiment, the latch tongue 32 is located on one side of the lock plate 31, that is, the latch tongue 32 may be located on the inner side of the lock plate 31 or on the outer side of the lock plate 31, and when the latch tongue 32 is located at the first position, a portion of the latch tongue 32 for stopping the protrusion 22 is substantially perpendicular to the opening direction of the lock groove 311, or certainly not perpendicular, for example, an angle of 80 ° to 100 ° with the opening direction of the lock groove 311 may be formed, and is used for stopping the protrusion 22 after moving to the predetermined position so as to prevent the protrusion 22 from moving toward the opening direction of the lock groove 311.

It should be noted that the latch tongue 32 may be embedded inside the lock plate, that is, a cavity is formed in the lock plate 31, so that the latch tongue 32 is inserted into the lock plate 31, and when the latch tongue 32 is located at the first position, at least a part of the latch tongue 32 is located in the locking groove 311; the latch tongue 32 may also be located on the side of the lock plate 31 (a side parallel to the longitudinal direction of the bracket 10), that is, a gap may be formed between the lock plate 31 and the bracket 10, and the latch tongue 32 is inserted into the gap, when the latch tongue 32 is located at the first position, the latch tongue 32 is limited by stopping the portion of the protrusion 22 protruding out of the locking groove 311.

In one embodiment, as shown in fig. 4, the first fixing assembly 30 further includes: and a stopper 33, the stopper 33 being movably disposed with respect to the bracket 10 such that the stopper 33 has a stopping position to stop the movement of the latch 32 and a releasing position to release the movement of the latch 32. The stop part 33 is used for controlling whether the lock tongue 32 can move or not, so that the limiting of the protruding part 22 in the lock tongue 32 and the lock plate 31 is effectively controlled, or the protruding part 22 is separated from the lock tongue 32 and the lock plate 31, and further, the stop part 33 is used for controlling whether the protruding part 22 can be separated from the locking groove 311 or not.

It should be noted that, the stop part 33 mainly realizes the limit of the lock tongue 32, and the stop part 33 may be a fastener, and is in limit contact with the lock tongue 32, so as to prevent the lock tongue 32 from rotating in a certain direction, or the stop part 33 may be only a rod body, and is in limit contact with the lock tongue 32, so as to prevent the lock tongue 32 from rotating. The purpose of the stop 33 is to limit the rotation of the latch tongue 32 in one direction.

Specifically, before the protruding part 22 enters the locking groove 311, the stopping part 33 may be disengaged from the lock tongue 32, and the lock tongue 32 may rotate in the second direction, and when the portion of the lock tongue 32 for stopping the protruding part 22 is located below the locking groove 311, the protruding part 22 may enter the locking groove 311, and then the stopping part 33 is released, and the lock tongue 32 rotates in the first direction to stop the protruding part 22, so that the protruding part 22 is limited between the lock plate 31 and the lock tongue 32.

Or, when the protruding part 22 enters the locking groove 311 and contacts with the lock tongue 32, the protruding part 22 pushes the lock tongue 32 to rotate along the first direction, when the lock tongue 32 rotates to a position where the lock tongue 32 is located below the locking groove 311 and is used for stopping the protruding part 22, and when a position where the lock tongue 32 is used for stopping the protruding part 22 is located below the locking groove 311, the protruding part 22 can enter the locking groove 311 and then push the stopping part 33, the lock tongue 32 rotates along the second direction to stop the protruding part 22, and therefore the protruding part 22 is limited between the locking plate 31 and the lock tongue 32.

The first direction is opposite to the second direction, i.e. one of the first direction and the second direction is clockwise and the other is counterclockwise.

It should be noted that, for the two embodiments of the protrusion 22 entering the locking slot 311, when the protrusion 22 is disengaged from the locking slot 311, the stop member 33 needs to be disengaged from the lock tongue 32, and then the lock tongue 32 rotates in the second direction, so that the protrusion 22 is disengaged from the stop of the lock tongue 32. It will be appreciated that the stop 33 limits the rotation of the bolt 32 in the second direction.

In one embodiment, as shown in fig. 4, a stopping groove 324 is provided on the locking bolt 32, when the stop member 33 is located at the stopping position, the stop member 33 is located in the stopping groove 324 to limit the locking bolt 32 at the first position, and when the stop member 33 is located at the releasing position, the stop member 33 is separated from the stopping groove 324 to enable the locking bolt 32 to rotate from the first position to the second position. The stop piece 33 is matched with the stop groove 324, so that the stop piece 33 limits the lock tongue 32, and the lock tongue 32 cannot rotate.

In one embodiment, as shown in fig. 4, a groove 321 is provided on the latch tongue 32, the groove 321 has a first side wall section 322 and a second side wall section 323, the first side wall section 322 is located in the latch groove 311 to stop the protrusion 22 in a projection parallel to the side surface of the lock plate 31 when the latch tongue 32 is located at the first position, and the second side wall section 323 is located in the latch groove 311 in a projection parallel to the side surface of the lock plate 31 when the latch tongue 32 is located at the second position, that is, the first side wall section 322 is rotated by the latch tongue 32 to move the second side wall section 323 into the latch groove 311 in a projection parallel to the side surface of the lock plate 31 when the protrusion 22 is released.

In one embodiment, as shown in fig. 4, the center of gravity of the lock tongue 32 is biased to the left of the rotation center of the lock tongue 32 (i.e. the side close to the stop member 33), so that the lock tongue 32 will be deflected to the left of the rotation center under the support of the stop member 33, which can also be understood as being deflected in the second direction.

In one embodiment, as shown in fig. 4, the stopping groove 324 includes a first groove surface 325 and a second groove surface 326, when the stopper 33 is located at the stopping position, the end surface of the stopper 33 abuts against the first groove surface 325, and the top surface of the stopper 33 abuts against the second groove surface 326. When the stop member 33 is located in the stop groove 324, the top surface of the stop member 33 limits the bolt 32 from rotating from the first position to the second position. In the process that the protruding part 22 moves to the preset position, the protruding part 22 can push the first side wall section 322 of the lock tongue 32 to rotate along the first direction, so that the protruding part 22 is limited between the lock plate 31 and the lock tongue 32, and after the protruding part 22 moves to the preset position, the lock tongue 32 can rotate along the second direction, so as to realize the stopping of the protruding part 22, the first direction is opposite to the second direction, that is, one of the first direction and the second direction is clockwise, and the other is counterclockwise.

Optionally, as shown in fig. 4, before the protrusion 22 enters the locking groove 311, the stop member 33 may be disengaged from the stop groove 324, the locking tongue 32 rotates in the second direction, the protrusion 22 may enter the locking groove 311, and hit the second side wall section 323 after the protrusion 22 contacts the second side wall section 323, so that the locking tongue 32 rotates in the first direction, and then the stop member 33 is released, so that the stop member 33 enters the stop groove 324 and limits the locking tongue 32, so that the protrusion 22 is limited between the locking plate 31 and the locking tongue 32, that is, the first side wall section 322 realizes the limitation of the protrusion 22.

It should be noted that, for the two embodiments of the protrusion 22 entering the locking groove 311, when the protrusion 22 is disengaged from the locking groove 311, the stop member 33 needs to be disengaged from the stopping groove 324, and then the latch tongue 32 rotates in the second direction under the action of gravity, so that the protrusion 22 is disengaged from the stopping of the first side wall section 322. In one embodiment, as shown in fig. 4, the first fixing assembly 30 further includes: a pull rod 34, the pull rod 34 is connected with the stop piece 33; the first elastic element 35 is sleeved on the pull rod 34, one end of the first elastic element 35 abuts against the stop element 33, the other end of the first elastic element 35 abuts against the fixing block 36, the fixing block 36 is a fixing element relative to the bracket 10, so that when the stop element 33 moves from the stop position to the release position, the stop element 33 compresses the first elastic element 35, and after the pull rod 34 is released, the first elastic element 35 returns to the original state, so that the stop element 33 can be pushed to move from the release position to the stop position, and the automatic stop of the lock tongue 32 is ensured.

Specifically, when the protrusion 22 is locked, the pull rod 34 is pulled to separate the stopper 33 from the stopping groove 324, and the first elastic member 35 is compressed, and due to the left gravity center of the locking tongue 32, the locking tongue can rotate counterclockwise (i.e. the second direction) under the action of the self-weight, so as to release the opening of the locking groove 311, and the stretcher 20 can freely enter the locking groove 311. After entering the locking groove 311, the protrusion 22 continues to move, and pushes the second side wall section 323 of the locking tongue 32, so that the locking tongue 32 rotates clockwise (i.e. in the first direction), and when the pull rod 34 is in place, the restoring force of the first elastic element 35 causes the stop member 33 to engage with the stop groove 324, so as to lock the locking tongue 32. Alternatively, during the movement of the stretcher 20 to the preset position, the protrusion 22 presses the first side wall section 322 of the locking tongue 32 to rotate the locking tongue 32 clockwise (i.e. the first direction), the first elastic member 35 is compressed, so that the protrusion 22 enters the locking groove 311, when the protrusion 22 completely enters, the first side wall section 322 of the locking tongue 32 loses the pushing force, and then the locking tongue 32 rotates counterclockwise (i.e. the second direction) under the restoring force of the first elastic member 35 to lock the protrusion 22 in the locking groove 311.

When the protrusion 22 is released, the pull rod 34 is pulled to disengage the stopper 33 from the stopper groove 324, and the latch 32 is rotated counterclockwise (i.e. in the second direction) due to its own weight (i.e. to the left), so as to release the opening of the locking groove 311, and the protrusion 22 can be removed from the locking groove 311.

The protruding member 22 may be a fixed pin.

In one embodiment, the carrier 10 comprises a first end side and a second end side opposite to the first end side, i.e. may be understood as a head and a tail of the carrier 10, and when the stretcher 20 is mounted with the carrier 10, the end of the carrier furthest away is the second end side and the end of the carrier closest is the first end side, in the direction of movement of the stretcher. The pull rod 34 is located in the bracket 10, and one end of the pull rod 34 away from the stopper 33 is located at the first end side of the bracket 10, so as to facilitate the operation by a person. The pull rod 34 can be connected to the bracket 10 through a fixing block 36, the pull rod 34 can be movably arranged along the fixing block 36, the first elastic element 35 is clamped between the fixing block 36 and the stop element 33, the fixing block 36 and the stop element 33 press the first elastic element 35 by pulling the pull rod 34, and the first elastic element 35 can be a spring, a rubber structure and the like.

In one embodiment, there may be two first fixing assemblies 30 to enable positioning of two protrusions 22, and the two first fixing assemblies 30 may be located on the same side of the bracket 10.

In one embodiment, as shown in fig. 3, 5 and 6, the latch 23 is provided on the stretcher 20, the fixing mechanism comprises a second fixing assembly 40, and the second fixing assembly 40 comprises: a baffle plate 41, the baffle plate 41 is rotatably arranged relative to the bracket 10, so that the baffle plate 41 has a connection position connected with the clamping pieces 23 and a separation position separated from the clamping pieces 23, thereby ensuring that the stretcher 20 is fixedly arranged relative to the bracket 10.

It should be noted that, the fixing mechanism may include a first fixing component 30 and a second fixing component 40, after the stretcher 20 is connected to the bracket 10 through the first fixing component 30, because the protrusion 22 cooperates with the locking tongue 32 and the stop member 33, in the operation process of the transfer device, because the side of the stretcher 20 away from the protrusion 22 is not positioned and limited, the stretcher 20 may rock up and down relative to the bracket 10, and therefore, the second fixing component 40 may be further used for limiting, so as to ensure that the stretcher 20 is fixedly disposed relative to the bracket 10. In certain embodiments, the securing mechanism may also include only the first securing assembly 30 or the second securing assembly 40.

In one embodiment, as shown in fig. 5 and 6, the second fixing assembly 40 further includes: a connecting shaft 42, the connecting shaft 42 being rotatably provided with respect to the bracket 10, the shutter 41 being provided on the connecting shaft 42; and the overturning handle 43, wherein the overturning handle 43 is arranged on the baffle plate 41 or the connecting shaft 42, so that an operator can drive the connecting shaft 42 and the baffle plate 41 to rotate through the overturning handle 43, thereby connecting the baffle plate 41 with the clamping piece 23.

Note that, the baffle 41 is connected to the locking member 23, and the baffle 41 and the locking member 23 may be engaged with each other, for example, a locking groove is provided in the locking member 23, and the baffle 41 is locked in the locking groove. Alternatively, the retainer 41 and the locking member 23 may overlap, that is, the retainer 41 may overlap the locking member 23 to achieve the fixed position.

In one embodiment, as shown in fig. 5 and 6, the second fixing assembly 40 further includes: the locking seat 44 is arranged on the bracket 10, and one end of the connecting shaft 42 is rotatably arranged on the locking seat 44; an unlocking lever 45, the unlocking lever 45 being movably disposed with respect to the bracket 10 such that the unlocking lever 45 has a locking position to stop the rotation of the connecting shaft 42 and an unlocking position to release the rotation of the connecting shaft 42; when the unlocking pull rod 45 is located at the locking position, one end of the unlocking pull rod 45 is located in the locking seat 44 to be in limit contact with the connecting shaft 42 located in the locking seat 44, so that the connecting shaft 42 can be limited to rotate, and the baffle plate 41 is prevented from being separated from the clamping stop piece 23.

In one embodiment, as shown in fig. 6, the circumferential surface of the connecting shaft 42 includes a curved surface 421 and a flat surface 422, and when the unlocking lever 45 is located at the locking position, the unlocking lever 45 contacts the flat surface 422 to limit the baffle plate 41 from rotating from the connecting position to the disengaging position; when the baffle 41 is rotated from the release position to the connection position, the unlocking rod 45 slides along the curved surface 421. One end of the connecting shaft 42 may be formed with a plane 422, and after the retaining plate 41 is located at the connecting position, the plane 422 of the connecting shaft 42 contacts the unlocking rod 45, for example, the unlocking rod 45 is located below the plane 422, and at this time, the connecting shaft 42 cannot rotate, so that the retaining plate 41 is prevented from being separated from the locking piece 23. When the baffle plate 41 is located at the disengaging position, the unlocking pull rod 45 can be abutted against the curved surface 421 of the connecting shaft 42, so that when the connecting shaft 42 is rotated by the overturning handle 43, the unlocking pull rod 45 can slide along the curved surface 421 of the connecting shaft 42 until the connecting shaft 42 is rotated to the proper position, namely, the baffle plate 41 is connected with the clamping stop piece 23.

Alternatively, the circumferential surface of the connecting shaft 42 may include two opposite curved surfaces 421 and two opposite flat surfaces 422.

In one embodiment, as shown in fig. 6, the second fixing assembly 40 further includes: the second elastic piece 46 and the second elastic piece 46 are sleeved on the unlocking pull rod 45, when the unlocking pull rod 45 moves from the locking position to the unlocking position, the unlocking pull rod 45 compresses the second elastic piece 46, so that the connecting shaft 42 rotates in place, namely, after the baffle plate 41 is connected with the clamping stop piece 23, the unlocking pull rod 45 can be restored to the locking position under the action of the second elastic piece 46, and therefore the unlocking pull rod 45 can limit the connecting shaft 42.

Specifically, the unlocking pull rod 45 may be connected to the bracket 10 through a fixing seat, the unlocking pull rod 45 may be connected to the fixing seat, and two ends of the second elastic member 46 may respectively abut against the fixing seat and the unlocking pull rod 45, so that the length change of the second elastic member 46 is realized in the moving process of the unlocking pull rod 45. The second elastic member 46 may be a spring or an elastic rubber.

In one embodiment, as shown in fig. 6, the second fixing assembly 40 further includes: the limiting pin 47 penetrates through the locking seat 44 and is in contact with the connecting shaft 42 so as to limit the rotation angle of the connecting shaft 42; when the baffle 41 is located at the connection position, the limit pin 47 and the unlocking pull rod 45 are respectively located at two opposite sides of the connection shaft 42, so that the connection shaft 42 cannot rotate, and the limit pin 47 can be used for limiting the rotation angle of the connection shaft 42, for example, the maximum rotation angle of the connection shaft 42 is controlled at 90 degrees.

Specifically, when the baffle 41 is located at the disengaging position, the limit pin 47 may be located above the plane 422, and the unlocking pull rod 45 is also opposite to the curved surface 421 of the connecting shaft 42, so that the connecting shaft 42 may rotate, and after the connecting shaft 42 rotates by 90 degrees, the limit pin 47 abuts against one plane 422 of the connecting shaft 42, at this time, the connecting shaft 42 rotates in place, and the unlocking pull rod 45 returns under the action of the second elastic member 46 to abut against the other plane 422 of the connecting shaft 42, so that the limit pin 47 and the unlocking pull rod 45 clamp the connecting shaft 42.

In one embodiment, the unlocking lever 45 is located inside the bracket 10, and the other end of the unlocking lever 45, which is far away from the locking seat 44, is located at the first end side of the bracket 10, so as to facilitate the operation of a person.

Alternatively, as shown in fig. 2, the bracket 10 includes a first section 121 and a second section 122, the first section 121 and the second section 122 both include a cavity, and the pull rod 34 of the first fixing assembly 30 and the unlocking pull rod 45 of the second fixing assembly 40 can be respectively located in the first section 121 and the second section 122 and simultaneously protrude from the same end side of the first section 121 and the second section 122, so as to facilitate the operation. In some embodiments, the number of the first fixing assemblies 30 may be two, in which case, the two pull rods 34 of the two first fixing assemblies 30 are respectively located in the first profile 121 and the second profile 122, and the first profile 121 or the second profile 122 may have both the pull rod 34 of the first fixing assembly 30 and the unlocking pull rod 45 of the second fixing assembly 40.

In one embodiment, as shown in fig. 5 and 6, the second fixing assembly 40 further includes: the reset seat 48, the reset seat 48 is set on the bracket 10, another end of the connecting shaft 42 is set on the reset seat 48 rotatably; and a third elastic member 49, one end of the third elastic member 49 is connected with the reset seat 48, the other end of the third elastic member 49 is connected with the connecting shaft 42, when the baffle plate 41 rotates from the disengagement position to the connection position, the connecting shaft 42 twists the third elastic member 49, so that when the unlocking pull rod 45 is located at the unlocking position, the third elastic member 49 drives the baffle plate 41 to rotate from the connection position to the disengagement position through the connecting shaft 42, and the third elastic member 49 provides an automatic restoring force for the connecting shaft 42, that is, after the unlocking pull rod 45 is pulled to the unlocking position, the third elastic member 49 can automatically drive the connecting shaft 42 to rotate, so that the baffle plate 41 is separated from the clamping part 23. The third elastic member 49 may be a return spring.

In one embodiment, the locking piece 23 is a hinge, which not only facilitates the overlapping of the baffle 41, but also enables the stretcher 20 to be foldable, thereby facilitating the subsequent storage and the like. The hinge can be a structure similar to a hinge, and can also be a structure with two hinged rod sections, and the structure is not limited in the position, so long as the convenient folding is ensured.

In one embodiment, the stretcher 20 further comprises a support portion 24, the support portion 24 forms a support for the injured person, and the support portion 24 may be a material of the stretcher 20, such as cloth, which is commonly used in the related art.

In one embodiment, the length of retainer 41 is adjustably set to accommodate grips 23 of different heights.

Alternatively, at least two baffles 41 may be provided, at least two baffles 41 may be connected to the connecting shaft 42 through the fixing plate 411, the baffles 41 may be adjustably disposed with respect to the fixing plate 411, and the adjustment of the baffles 41 with respect to the fixing plate 411 may be achieved by cooperation of the sliding grooves 412 and the fasteners 413, as shown in fig. 5.

In one embodiment, as shown in fig. 1 and 7, the transfer apparatus further comprises: the adapter mechanism 50 is connected with the bracket 10, and the adapter mechanism 50 is used for being connected with the working platform, so that the transfer equipment is installed on the working platform. The work platform can be the work platform of fire engine, and further, the work platform can be the work platform of elevating fire engine.

In one embodiment, as shown in fig. 8, the transfer apparatus further comprises a rotating mechanism 60, the rotating mechanism 60 comprising: a first connecting member 61, the first connecting member 61 being connected to the bracket 10; a second connecting piece 62, wherein the second connecting piece 62 is connected with the switching mechanism 50; wherein at least a portion of the first connecting member 61 is movably disposed to connect with or separate from the second connecting member 62, when the first connecting member 61 is connected with the second connecting member 62, the bracket 10 is fixedly disposed relative to the adapting mechanism 50, and when the first connecting member 61 is separated from the second connecting member 62, the bracket 10 is movably disposed relative to the adapting mechanism 50, so as to adjust the position of the stretcher 20.

Specifically, when the first connecting member 61 is connected to the second connecting member 62, the bracket 10 is connected to the first connecting member 61, and the second connecting member 62 is connected to the adapting mechanism 50, so that the bracket 10 is fixedly disposed relative to the adapting mechanism 50, and the bracket 10 cannot drive the stretcher 20 to rotate, and only after the first connecting member 61 is separated from the second connecting member 62, the bracket 10 can be movably disposed relative to the adapting mechanism 50, so that the position of the stretcher 20 can be adjusted.

It should be noted that the bracket 10 may rotate relative to the adapter 50, or the bracket 10 may move relative to the adapter 50, that is, the bracket 10 may move relative to the work platform, so as to adjust the position state.

In one embodiment, as shown in fig. 8, the first connecting element 61 includes a positioning block 611, the second connecting element 62 includes a positioning plate 621, and the positioning block 611 is movably disposed to be connected with or separated from the positioning plate 621, so as to connect and disconnect the first connecting element 61 and the second connecting element 62.

Alternatively, the first connecting member 61 may include a fixing pin, and the second connecting member 62 may include a fixing hole, and the first connecting member 61 and the second connecting member 62 are connected and separated by the fixing pin and the fixing hole.

In one embodiment, as shown in fig. 8, the first connecting member 61 further includes: a rotating shaft 612, the rotating shaft 612 being rotatably provided on the bracket 10, and the positioning block 611 being provided on the rotating shaft 612; a handle 613, and a handle 613 is provided on the rotating shaft 612 or the positioning block 611, so that the operator can rotate the rotating shaft 612 by driving the handle 613, thereby separating the positioning block 611 from the positioning plate 621.

In one embodiment, as shown in fig. 8, the first connecting member 61 further includes: and a fourth elastic member 614, one end of the fourth elastic member 614 is connected to the bracket 10, and the other end of the fourth elastic member 614 is connected to the rotating shaft 612, so that when the positioning block 611 is separated from the positioning disc 621, the rotating shaft 612 twists the fourth elastic member 614, thereby securely connecting the positioning block 611 on the rotating shaft 612 to the positioning disc 621. The fourth elastic member 614 may be a return spring.

In one embodiment, as shown in fig. 1, 7 and 8, the second connector 62 further comprises: the positioning disc 621 is disposed on the transferring shaft 622, the transferring shaft 622 penetrates through the bracket 10 to be connected with the transferring mechanism 50, the bracket 10 is located between the positioning disc 621 and the transferring mechanism 50, the bracket 10 can rotate relative to the transferring shaft 622, the transferring shaft 622 can be fixedly connected with the transferring mechanism 50, the positioning disc 621 is fixedly disposed relative to the transferring shaft 622, and therefore after the first connecting piece 61 is separated from the second connecting piece 62, the bracket 10 can rotate relative to the transferring shaft 622. Specifically, after the switching shaft 622 is connected with the switching mechanism 50, the switching mechanism 50 realizes the fixation of the second connecting piece 62, so that the bracket 10 can rotate relative to the switching mechanism 50 after the first connecting piece 61 is separated from the second connecting piece 62, the rotating angle of the bracket 10 can be 360 degrees, and the rescue direction can be adjusted rapidly by the stretcher 20 through positioning at any angle.

In one embodiment, the adapter shaft 622 is removably coupled to the adapter mechanism 50 to facilitate removal of the carrier 10.

In one embodiment, as shown in fig. 7, the changeover mechanism 50 includes: the shell member 51, the shell member 51 is connected with the working platform, and the adapter shaft 622 penetrates through the shell member 51; the fixing member 52, the fixing member 52 being movably disposed with respect to the housing member 51 to be connected to or separated from the rotating shaft 622, thereby achieving fixing and releasing of the rotating mechanism 60.

In one embodiment, as shown in fig. 7 and 8, the adapting shaft 622 is provided with a slot 623, and the fixing member 52 is inserted into the slot 623 to be connected with the adapting shaft 622. The fixing member 52 moves relative to the case member 51 so as to be coupled to or separated from the insertion groove 623.

In one embodiment, as shown in fig. 7, the adapter mechanism 50 further comprises: a restoring member 53; a connecting plate 54, wherein two ends of the connecting plate 54 are respectively connected with the resetting piece 53 and the fixing piece 52; the fifth elastic element 55 and the fifth elastic element 55 are sleeved on the reset element 53, and when the fixing element 52 is separated from the adapting shaft 622, the reset element 53 compresses the fifth elastic element 55, so that the fifth elastic element 55 can provide restoring force to the reset element 53, and the fixing element 52 is driven by the connecting plate 54 to move, so that the fixing element 52 is reliably pressed in the slot 623. The fifth elastic member 55 may be a spring or a rubber.

In one embodiment, as shown in fig. 7, the adapter mechanism 50 further comprises: a stretching handle 56, wherein the stretching handle 56 is in driving connection with the fixing member 52, the reset member 53 or the connecting plate 54 to drive the fixing member 52 to be separated from the adapting shaft 622. An operator can drive the fixed member 52 to move through the stretching handle 56, for example, the stretching handle 56 can be directly connected with the fixed member 52, the reset member 53 or the connecting plate 54, so as to directly pull the fixed member 52 to move relative to the housing member 51, thereby disengaging the fixed member 52 from the slot 623, or the stretching handle 56 can be indirectly connected with the fixed member 52, the reset member 53 or the connecting plate 54, for example, the stretching handle 56 can be connected with a top block, and when the stretching handle 56 is rotated, the top block rotates, thereby pushing the connecting plate 54 to move, thereby driving the fixed member 52 and the reset member 53 to move.

In one embodiment, as shown in fig. 7, the adapter mechanism 50 further comprises: the wear pad 57, the wear pad 57 is connected with the shell member 51, the bracket 10 is located on the wear pad 57 and is rotatably arranged relative to the wear pad 57, the reliable support to the bracket 10 can be guaranteed by the arrangement of the wear pad 57, the shell member 51 can be prevented from being worn, and the service life of the adapting mechanism 50 is guaranteed.

In one embodiment, as shown in fig. 8, the positioning plate 621 is provided with an engaging tooth 624 on the circumferential outer surface thereof, the positioning block 611 is adapted to the engaging tooth 624, and the positioning block 611 is also provided with an adapted engaging tooth, so as to effectively connect with the positioning plate 621.

In one embodiment, as shown in fig. 2, the bracket 10 includes: the main frame 12, the stretcher 20 and the fixing mechanism are all arranged on the main frame 12; a reinforcing bar 13, the reinforcing bar 13 being disposed on the main frame 12; and armrests 14, wherein the armrests 14 are arranged on the side parts of the main frame 12. The reinforcing bar 13 is provided to secure the strength of the main frame 12, and the armrest 14 can facilitate the lifting of the bracket 10.

Optionally, the reinforcing bar 13 may be a V-shaped reinforcing rib to enhance the rigidity of the bracket 10, and the armrests 14 are mounted on both sides of the main frame 12, so that the main frame can be easily taken up by a single person.

In one embodiment, the main frame 12 is provided with a connection portion for connecting a safety protection device, and/or the main frame 12 is provided with a reserved space for placing a rescue accessory. Safety belts can be uniformly arranged at the positions of the main frame 12 corresponding to the chest and the legs of the wounded, so that the stretcher 20 and the wounded can be fixed at the same time, and the wounded is prevented from causing secondary injury in the transferring process. Meanwhile, a reserved space for installing rescue accessories, such as a breathing air bottle, a rescue tool, a medical instrument and the like, is reserved on the bracket 10, so that rescue personnel can conveniently rescue the wounded in time.

In one embodiment, the bracket 10 is made of aluminum alloy, i.e., the bracket 10 can be made of all aluminum alloy, thereby reducing the weight of the bracket 10.

The utility model provides a transshipment equipment installs wheel body 21 through the bottom in stretcher 20 both sides, and the bracket corresponds the position and is equipped with the spout, cooperates the fixed subassembly 40 of the first fixed subassembly 30 of cooperation and second, can effectively improve the installation effectiveness and the stability of stretcher 20 and bracket 10. And, the handles for fixing and unlocking the stretcher 20 are provided at the first end side of the bracket 10, for example, the head of the bracket 10, and can be independently completed by a single person, thereby improving the efficiency of the rescuer. Bracket 10 is connected with work platform through changeover mechanism 50, and changeover mechanism 50 simple structure can realize quick cartridge and locking between bracket 10 and the work platform, improves bracket and mounting platform's installation effectiveness and stability, and bracket 10 can 360 degrees rotations through rotary mechanism 60 to in arbitrary angular positioning, make things convenient for stretcher 20 quick adjustment rescue direction.

An embodiment of the present application also provides a vehicle including the transfer apparatus described above.

The vehicle comprises a vehicle body and a transfer device arranged on the vehicle body, for example the vehicle may be an ambulance.

Optionally, the vehicle is the fire engine, and is further, and the vehicle is for lifting the fire engine, lifts to install work platform on the flexible arm of height fire engine, and transfer device detachably installs on well-known platform.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A transfer apparatus, comprising:

the bracket (10), the bracket (10) is provided with a first positioning piece;

the stretcher (20) is provided with a second positioning piece matched with the first positioning piece, and when the first positioning piece is in butt joint with the second positioning piece, the stretcher (20) moves along the bracket (10);

a fixing mechanism provided on the bracket (10) to connect the stretcher (20) to fix the stretcher (20) to the bracket (10) when the stretcher (20) is moved to a preset position along the bracket (10).

2. Transfer device according to claim 1, wherein one of the first and second positioning elements is at least one wheel (21) and the other is a chute (11).

3. Transfer device according to claim 1, characterized in that a projection (22) is provided on the stretcher (20), the fixing means comprising a first fixing assembly (30), the first fixing assembly (30) comprising:

a lock plate (31), the lock plate (31) being provided on the bracket (10);

a locking tongue (32), the locking tongue (32) being movably arranged relative to the locking plate (31) such that the locking tongue (32) has a first position in which it is retained against the locking plate (31) by the protrusion (22) and a second position in which it releases the protrusion (22).

4. Transfer device according to claim 3, wherein the locking plate (31) is provided with a locking groove (311), the locking tongue (32) being rotatably arranged with respect to the locking plate (31) for switching the locking tongue (32) between the first position and the second position;

when the locking bolt (32) is located at the first position, the locking bolt (32) limits the protruding part (22) in the locking groove (311).

5. Transfer device according to claim 4, wherein the locking tongue (32) is provided with a groove (321), the groove (321) having a first side wall section (322) and a second side wall section (323), the locking plate (31) in the first position being located in the locking groove (311) in a projection parallel to the side of the locking plate (31), the first side wall section (322) being located in the locking groove (311) for stopping the protrusion (22), the locking plate (31) in the second position being located in the locking groove (311) in a projection parallel to the side of the locking plate (31), the second side wall section (323) being located in the locking groove (311).

6. Transfer device according to any one of claims 3 to 5, wherein the first fixing assembly (30) further comprises:

a stopper (33), the stopper (33) being movably disposed with respect to the bracket (10) such that the stopper (33) has a stopping position to stop the movement of the latch tongue (32) and a releasing position to release the movement of the latch tongue (32).

7. Transfer device according to claim 6, wherein a stop groove (324) is provided on the locking tongue (32), wherein the stop (33) is located in the stop position, the stop (33) being located in the stop groove (324) to limit the locking tongue (32) in the first position, and wherein the stop (33) is located in the release position, the stop (33) being disengaged from the stop groove (324) to enable the locking tongue (32) to be rotated from the first position to the second position.

8. Transfer device according to claim 7, wherein the first fixing assembly (30) further comprises:

a pull rod (34), the pull rod (34) being connected with the stopper (33);

a first elastic member (35), wherein the first elastic member (35) is sleeved on the pull rod (34), and one end of the first elastic member (35) is abutted against the stop member (33), so that when the stop member (33) moves from the stop position to the release position, the stop member (33) compresses the first elastic member (35);

wherein the pull rod (34) is located in the bracket (10), and one end of the pull rod (34) far away from the stop piece (33) is located at the first end side of the bracket (10).

9. Transfer device according to any one of claims 1 to 5, characterized in that a stop (23) is provided on the stretcher (20), the fixing means comprising a second fixing assembly (40), the second fixing assembly (40) comprising:

a shutter plate (41), the shutter plate (41) being rotatably provided with respect to the holder (10) such that the shutter plate (41) has a coupling position coupled to the locking piece (23) and a disengagement position disengaged from the locking piece (23).

10. Transfer device according to claim 9, wherein the second fixing assembly (40) further comprises:

a connecting shaft (42), the connecting shaft (42) being rotatably provided with respect to the bracket (10), the baffle plate (41) being provided on the connecting shaft (42);

a turnover handle (43), wherein the turnover handle (43) is arranged on the baffle (41) or the connecting shaft (42).

11. Transfer device according to claim 10, wherein the second fixing assembly (40) further comprises:

the locking seat (44) is arranged on the bracket (10), and one end of the connecting shaft (42) is rotatably arranged on the locking seat (44);

an unlocking lever (45), the unlocking lever (45) being movably arranged relative to the bracket (10) such that the unlocking lever (45) has a locking position in which the rotation of the connecting shaft (42) is stopped and an unlocking position in which the rotation of the connecting shaft (42) is released;

when the unlocking pull rod (45) is located at the locking position, one end of the unlocking pull rod (45) is located in the locking seat (44) so as to be in limit contact with the connecting shaft (42) located in the locking seat (44).

12. Transfer apparatus according to claim 11, wherein the peripheral surface of the connection shaft (42) comprises a curved surface (421) and a flat surface (422), the unlocking lever (45) being in contact with the flat surface (422) when the unlocking lever (45) is in the locking position to limit the rotation of the shutter (41) from the connection position to the disengagement position;

when the baffle (41) rotates from the disengaging position to the connecting position, the unlocking pull rod (45) slides along the curved surface (421).

13. Transfer device according to claim 11 or 12, wherein the second fixing assembly (40) further comprises:

the limiting pin (47) penetrates through the locking seat (44) and is in contact with the connecting shaft (42) so as to limit the rotation angle of the connecting shaft (42);

when the baffle (41) is located at the connecting position, the limiting pin (47) and the unlocking pull rod (45) are respectively located on two opposite sides of the connecting shaft (42).

14. Transfer device according to claim 11, wherein the second fixing assembly (40) further comprises:

the reset seat (48), the reset seat (48) is arranged on the bracket (10), and the other end of the connecting shaft (42) is rotatably arranged on the reset seat (48);

the one end of third elastic component (49) with reset seat (48) are connected, the other end of third elastic component (49) with connecting axle (42) are connected, so that when baffle (41) by break away from the position and rotate to the hookup location, connecting axle (42) twist third elastic component (49), so that when unblock pull rod (45) is located the unblock position, third elastic component (49) pass through connecting axle (42) drive baffle (41) by the hookup location rotates to the break away from the position.

15. The transfer apparatus of claim 1, further comprising:

the bracket (10) is connected with the switching mechanism (50), and the switching mechanism (50) is used for being connected with a working platform.

16. Transfer device according to claim 15, further comprising a rotation mechanism (60), the rotation mechanism (60) comprising:

a first connecting member (61), the first connecting member (61) being connected to the bracket (10);

a second connector (62), wherein the second connector (62) is connected with the switching mechanism (50);

at least part of the first connecting piece (61) is movably arranged to be connected with or separated from the second connecting piece (62), when the first connecting piece (61) is connected with the second connecting piece (62), the bracket (10) is fixedly arranged relative to the switching mechanism (50), and when the first connecting piece (61) is separated from the second connecting piece (62), the bracket (10) is movably arranged relative to the switching mechanism (50).

17. A vehicle, characterized in that it comprises a transfer device according to any one of claims 1 to 16.