CN113440703A

CN113440703A - Breathing machine trolley

Info

Publication number: CN113440703A
Application number: CN202110754217.1A
Authority: CN
Inventors: 梁登云; 唐克锋; 王瑞强; 胡榜; 王保华
Original assignee: Ambulanc Shenzhen Tech Co Ltd
Current assignee: Ambulanc Shenzhen Tech Co Ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-09-28

Abstract

The invention discloses a breathing machine trolley, wherein the breathing machine trolley comprises a movable base, a clamping structure and a breathing main machine, wherein the movable base is provided with a placing platform; the clamping structure is movably arranged on the placing platform; the breathing host is provided with a buckle groove, the breathing host is placed on the placing platform, and the clamping structure is movable relative to the movable base so as to be fixed with the buckle groove in a clamping mode to limit the movement of the breathing host. The technical scheme of the invention aims to quickly unlock the main machine of the breathing machine and the trolley so as to facilitate the installation of the breathing machine on the tower crane and improve the installation and disassembly efficiency of the breathing machine.

Description

Breathing machine trolley

Technical Field

The invention relates to the technical field of medical instruments, in particular to a breathing machine trolley.

Background

A ventilator is an automatic ventilation breathing apparatus with assisted inspiration and ventilation monitoring functions to scientifically monitor the vital signs of a patient. And the breathing machine will set up on the platform truck usually for the convenience removes, and when the breathing machine was used in the ICU ward, will satisfy the function of the last tower crane of breathing machine, but present breathing machine and platform truck adopt the screw fixation, all need be with the help of the instrument when dismantling and installing, to medical staff, the installation with dismantle the process all comparatively loaded down with trivial details, operating efficiency is lower, be not convenient for use.

Disclosure of Invention

The invention mainly aims to provide a breathing machine trolley, aiming at quickly unlocking a main machine of a breathing machine and the trolley, so that the breathing machine is conveniently installed on a tower crane, and the installation and disassembly efficiency of the breathing machine is improved.

In order to achieve the above object, the present invention provides a ventilator cart, comprising:

the mobile base is provided with a placing platform;

the clamping structure is movably arranged on the placing platform; and

the breathing host machine is provided with a buckling groove, the breathing host machine is placed on the placing platform, and the clamping structure is fixed relative to the movable base and is clamped with the buckling groove to limit the movement of the breathing host machine.

In an embodiment of this application, be equipped with in the place the platform and set up the mouth of dodging of intercommunication inner space, the joint structure includes the stopper, the activity of joint structure is located place the platform's inner space, so that the stopper can be followed it stretches out in order with the catching groove joint to dodge the mouth.

In an embodiment of this application, the stopper includes first meshing section and joint section, the joint structure still includes drive gear, drive gear rotates and locates place the platform, drive gear with first meshing section meshing is connected, drive gear rotates with the drive first meshing section drives in step the joint section is in dodge and carry out reciprocating motion in the mouth.

In an embodiment of the application, the clamping structure further includes a moving block, the moving block is provided with a second meshing section, the moving block is slidably arranged on the placing platform, and the second meshing section is meshed with the transmission gear.

In an embodiment of the application, the moving block is provided with a guide hole, the moving block forms the second engaging section on a hole wall of the guide hole, and the transmission gear is partially inserted into the guide hole and engaged with the second engaging section.

In an embodiment of this application, place the platform and close apron and the casing of connecting including the lid, the casing has been seted up dodge the mouth, the casing orientation first guide way and the second guide way that is linked together are seted up to the surface of apron, the second guide way with dodge mouthful intercommunication, the movable block slides and locates first guide way, the stopper slides and locates in the second guide way, drive gear rotates and locates first guide way with the junction of second guide way.

In an embodiment of this application, the intercommunication is still seted up to the casing the mouth of holding of first guide way, the joint structure is still including holding switch and reset spring, hold the switch rotate connect in place the platform, and be located hold mouth department, hold the switch with the movable block is connected, reset spring's one end with the inner wall butt of place the platform's first guide way, the other end with the movable block butt.

In an embodiment of the application, the housing is provided with a positioning column at the bottom of the second guide groove, the clamping section is provided with a sliding through hole, and the positioning column penetrates through the sliding through hole and is accommodated in the sliding through hole, so that when the limiting block slides in the second guide groove, the positioning column can slide relative to the sliding through hole;

and/or one side of the clamping section, which deviates from the first meshing section, is provided with a guide inclined plane.

In an embodiment of this application, breathe the host computer orientation place the concave mounting groove that is equipped with in platform's surface, the catching groove is seted up in the groove wall of mounting groove, it sets up in to dodge the mouth place the platform's lateral wall, place the platform inlays to be located in the mounting groove, so that the stopper can be followed it stretches out in order with to dodge the mouth with the catching groove joint.

In an embodiment of the present application, the ventilator trolley further comprises a gas cylinder support, the gas cylinder support is detachably connected to the mobile base.

The breathing machine trolley comprises a movable base provided with a placing platform, a clamping structure movably arranged on the placing platform, and a breathing main machine, wherein the breathing main machine is provided with a buckling groove, so that after the breathing main machine is placed on the placing platform for pre-positioning, medical workers can move relative to the movable base through controlling the clamping structure to enable the breathing main machine to be clamped and fixed in the buckling groove, the movement of the breathing main machine is limited, the breathing main machine is further guaranteed to move to different scenes to rescue and use through ensuring the movement of the movable base, and the stability of the breathing main machine during movement is guaranteed. And when breathing the host computer and need use on the tower crane, through the activity of secondary drive joint structure so that it breaks away from the catching groove to medical personnel can directly move and move breathing the host computer and assemble the use with the tower crane, so this installation and dismantlement process all need not additionally to borrow other instruments, and comparatively convenient and operating efficiency is higher, has improved the convenience of the use of breathing machine platform truck.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a ventilator cart according to the present invention;

FIG. 2 is a schematic view of another aspect of the ventilator trolley of the present invention;

FIG. 3 is a schematic view of an assembly structure of the ventilator trolley of the present invention;

FIG. 4 is a schematic view of the assembly structure of the cover plate of the movable base of the ventilator trolley according to the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic structural view of a clamping structure of the ventilator trolley according to the present invention;

FIG. 7 is a schematic structural view of a placement platform of the ventilator trolley of the present invention;

fig. 8 is a schematic view of an assembly structure of the gas cylinder bracket and the movable base of the breathing machine trolley.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Breathing machine trolley	2121	Lead inclined plane
10	Movable base	2122	Sliding through hole
				11	Placing platform	2123	Abdicating groove
111	Cover plate	22	Transmission gear
				112	Shell body	23	Moving block
1121	Dodging port	231	Second engagement section
				1122	Operating opening	232	Guide hole
1123	First guide groove	24	Operating switch
				1124	Second guide groove	25	Reset spring
1125	Positioning column	26	Connecting set
				1126	Mounting post	30	Breathing main machine
1127	Fixing column	31	Buckle slot
				12	Wheel of vehicle	32	Mounting groove
20	Clamping structure	33	Display screen
				21	Limiting block	40	Gas cylinder support
211	First engaging section	50	Screw nail
				212	Clamping section

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a ventilator trolley 100.

Referring to fig. 1 to 5, in the embodiment of the present invention, the breathing machine trolley 100 includes a movable base 10, a clamping structure 20, and a breathing main machine 30, wherein the movable base 10 is provided with a placing platform 11; the clamping structure 20 is movably arranged on the placing platform 11; breathing host computer 30 is equipped with catching groove 31, breathing host computer 30 place in place the platform 11, joint structure 20 for remove the base 10 activity with catching groove 31 joint is fixed, in order to restrict breathing host computer 30's removal.

Wherein, the bottom of this removal base 10 is equipped with wheel 12, and this wheel 12 can be the universal wheel, understandably, through the setting of wheel 12 for can remove through promoting removal base 10, thereby realize the removal of first aid breathing machine platform truck 100, so that rescue in different scenes is used. And breathing host computer 30 is used for monitoring patient's health data to supply medical personnel to make medical judgment, breathing host computer 30 is provided with display screen 33, makes things convenient for medical personnel to watch, record and parameter control through this display screen 33. In addition, the front side of the breathing main machine 30 is also provided with a key, a rotary encoder, an air path interface, a flow sensor interface and other components, and the components are arranged on the front side of the breathing main machine 30 so as to facilitate operation.

The breathing machine trolley 100 comprises a movable base 10 provided with a placing platform 11 and a clamping structure 20 movably arranged on the placing platform 11, and meanwhile, the breathing machine trolley 100 further comprises a breathing main machine 30, the breathing main machine 30 is provided with a buckling groove 31, so that after the breathing main machine 30 is placed on the placing platform 11 for prepositioning, medical staff can move relative to the movable base 10 through controlling the clamping structure 20 to enable the breathing main machine to be clamped and fixed in the buckling groove 31, movement of the breathing main machine 30 is limited, the breathing main machine 30 is driven to move to different scenes through movement of the movable base 10 to be rescued and used, and stability of the breathing main machine 30 during movement is guaranteed. And when breathing host computer 30 need use on the tower crane, through the activity of secondary drive joint structure 20 so that it breaks away from catching groove 31 to medical personnel can directly move breathing host computer 30 and assemble the use with the tower crane, so this installation and dismantlement process all need not additionally to borrow other instruments, and is comparatively convenient and operating efficiency higher, has improved the convenience that breathing machine platform truck 100 used.

In an embodiment of this application, combine to refer to fig. 4 to 7, be equipped with in the place platform 11 and set up the intercommunication inner space dodge mouth 1121, joint structure 20 includes stopper 21, joint structure 20 activity is located place platform 11's inner space, so that stopper 21 can be followed dodge mouth 1121 stretch out with catching groove 31 joint. It can be understood that, when the breathing main unit 30 is placed on the placement platform 11, the slot 31 is disposed opposite to the avoidance opening 1121, so that when the limiting block 21 extends out from the avoidance opening 1121, it can be directly fastened and fixed with the slot 31 to limit the movement of the breathing main unit 30, and when the breathing main unit 30 needs to be detached, the clamping structure 20 can be driven to separate the limiting block 21 from the slot 31 and retract from the avoidance opening 1121 into the placement platform 11, so as to facilitate the movement of the breathing main unit 30. The opening of the avoiding opening 1121 is matched with the outer contour of the limiting block 21, so that the limiting block 21 can conveniently extend out of or retract into the avoiding opening 1121. In order to further improve the stability of the clamping, a plurality of catching grooves 31 may be provided in the breathing main unit 30, so that a plurality of limiting blocks 21 and avoidance openings 1121 may be provided, so that one limiting block 21 passes through one avoidance opening 1121 to be clamped and fixed with one catching groove 31, which may be specifically set by a person skilled in the art according to specific situations.

Further, stopper 21 includes first meshing section 211 and joint section 212, joint structure 20 still includes drive gear 22, drive gear 22 rotates and locates place platform 11, drive gear 22 with first meshing section 211 meshes the connection, drive gear 22 rotates with the drive first meshing section 211 drives in step joint section 212 is in avoid carrying out reciprocating motion in the mouth 1121. Wherein, this first meshing section 211 and joint section 212 can be structure as an organic whole, so saved the installation procedure in earlier stage promptly, also guarantee stopper 21's overall structure intensity simultaneously, and then guarantee the stability of stopper 21 and catching groove 31 joint. And the mounting column 1126 is arranged in the inner space of the placing platform 11, so that the transmission gear 22 can be sleeved at the mounting column 1126, the transmission gear 22 can rotate relative to the placing platform 11, and the first meshing section 211 is provided with a plurality of racks, so that the first meshing section 211 is meshed with the transmission gear 22, so that the transmission gear 22 rotates to drive the first meshing section 211 to drive the clamping section 212 to reciprocate at the avoidance opening 1121, and the clamping section 212 is clamped and matched with the buckle slot 31. When the breathing host 30 is provided with two opposite catching grooves 31, and the placing platform 11 is provided with two opposite avoiding openings 1121, the number of the limiting blocks 21 is two, the first engaging sections 211 of the two limiting blocks 21 can be respectively engaged with two opposite sides of the transmission gear 22, so as to synchronously drive the two clamping sections 212 to be close to or far away from each other through the rotation of the single transmission gear 22, so that the two clamping sections 212 can be clamped or separated from the catching grooves 31 at the same time, and further, the clamping structure 20 in the placing platform 11 is more compact, and the size of the breathing machine trolley 100 is prevented from being too large. In addition, two opposite surfaces of the two clamping sections 212 are respectively provided with an abdicating groove 2123, so that when the two clamping sections 212 approach each other, the two first engaging sections 211 can be respectively inserted into the two abdicating grooves 2123, so as to further make the clamping structure 20 in the placing platform 11 more compact. Of course, the clamping structure 20 may also include a ball screw or the like, so as to drive the clamping section 212 to reciprocate at the avoidance port 1121, and the specific arrangement may be set by a person skilled in the art according to specific situations.

Furthermore, the clamping structure 20 further includes a moving block 23, the moving block 23 is provided with a second engaging section 231, the moving block 23 is slidably disposed on the placing platform 11, and the second engaging section 231 is engaged with the transmission gear 22. The moving block 23 may be directly slidably disposed in the placing platform 11, and certainly, in order to improve the sliding efficiency and stability, a sliding rail may be disposed to be in sliding fit with the moving block 23. And the second meshing section 231 of the moving block 23 is also provided with a rack matched with the transmission gear 22, so that the transmission gear 22 is driven to rotate through the relative sliding of the moving block 23, and the operation process is more convenient.

Furthermore, the moving block 23 is provided with a guide hole 232, the second engaging section 231 is formed on the wall of the guide hole 232 of the moving block 23, and the transmission gear 22 is partially inserted into the guide hole 232 and engaged with the second engaging section 231. Wherein, this movable block 23 has seted up guiding hole 232, and the movable block 23 forms in the pore wall of guiding hole 232 the second meshing section 231, so through insert drive gear 22 in guiding hole 232 with be connected with the meshing of second meshing section 231, thereby in order to guarantee the stability of being connected with the drive gear 22 meshing of second meshing section 231, guarantee movable block 23 directional movement, in order to avoid both to break away from the unable pivoted condition emergence of drive gear 22 after, improve the stability of joint structure 20 joint.

Optionally, referring to fig. 4 and fig. 7, the placing platform 11 includes a cover plate 111 and a housing 112 that are connected in a covering manner, the housing 112 is provided with the avoidance port 1121, a first guide groove 1123 and a second guide groove 1124 that are communicated are provided on a surface of the housing 112 facing the cover plate 111, the second guide groove 1124 is communicated with the avoidance port 1121, the moving block 23 is slidably provided in the first guide groove 1123, the limit block 21 is slidably provided in the second guide groove 1124, and the transmission gear 22 is provided at a connection position of the first guide groove 1123 and the second guide groove 1124.

Wherein, the surface that this apron 111 deviates from casing 112 can be the plane setting to make apron 111 can butt the bottom surface of breathing host computer 30 completely, thereby improve area of contact between them, in order to guarantee to breathe the frictional force between host computer 30 and the apron 111, and then further improve the stability after breathing host computer 30 installs. This apron 111 and casing 112 can be fixed through removable mode such as screw connection or buckle connection to the later stage is maintained the change to joint structure 20. The housing 112 is provided with a first guide groove 1123 and a second guide groove 1124 which are communicated with each other, and the first guide groove 1123 and the second guide groove 1124 may be arranged at an included angle, in an embodiment, the projection is performed from the cover plate 111 towards the housing 112, the projection of the first guide groove 1123 and the projection of the second guide groove 1124 are arranged perpendicularly, the transmission gear 22 is arranged at the joint of the first guide groove 1123 and the second guide groove 1124, and the first engaging section 211 and the second engaging section 231 may be arranged in a stacked manner and engaged with the transmission gear 22 at the same time, so that the moving direction of the moving block 23 and the moving direction of the limit block 21 are also arranged perpendicularly to avoid mutual interference when the moving block and the limit block 21 are moved, and the extension or retraction of the limit block 21 is not affected during the operation of the medical staff, so as to ensure the stability of the clamping structure 20.

Further, the housing 112 further has a holding opening 1122 communicating with the first guide groove 1123, the clamping structure 20 further includes a holding switch 24 and a return spring 25, the holding switch 24 is rotatably connected to the placing platform 11 and located at the holding opening 1122, the holding switch 24 is connected to the moving block 23, one end of the return spring 25 abuts against the inner wall of the first guide groove 1123 of the placing platform 11, and the other end of the return spring abuts against the moving block 23. The operating switch 24 may be rotatably disposed on the housing 112 through a rotating shaft, and the operating switch may be provided with a connecting member 26 connected to the moving block 23, such that the rotating operating switch 24 drives the moving block 23 to move in the first guiding groove 1123 through the connecting member 26. The housing 112 defines a holding opening 1122 communicating with the first guiding slot 1123, and the holding switch 24 can be hidden in the holding opening 1122 to prevent the holding switch 24 from being exposed to the outside and being damaged by collision. Meanwhile, a return spring 25 is also arranged and accommodated in the first guide groove 1123, so that when the medical personnel toggle the operation switch 24, the moving block 23 moves to abut against and press the return spring 25, and simultaneously the limiting block 21 retracts into the second guide groove 1124, and when the medical personnel withdraw the external force, the return spring 25 elastically resets to push the moving block 23 to return to the original position, so that the limiting block 21 is synchronously driven to extend out of the avoiding opening 1121 again, and thus the automatic resetting of the limiting block 21 is realized, and the convenience in operation of the clamping structure 20 is further improved. It should be noted that a fixing post 1127 is disposed in the first guide groove 1123 of the housing 112, so as to fix the return spring 25 to the fixing post 1127, and further ensure the stability of the return spring 25 during deformation. Of course, the number of the return springs 25 may be plural, so as to further improve the stability of the automatic return of the stopper 21.

In an embodiment of the present application, referring to fig. 5 and fig. 7, the housing 112 is provided with a positioning pillar 1125 at the bottom of the second guiding groove 1124, the clamping section 212 is provided with a sliding through hole 2122, the positioning pillar 1125 passes through the sliding through hole 2122 and is accommodated in the sliding through hole 2122, so that when the limiting block 21 slides in the second guiding groove, the positioning pillar 1125 can slide relative to the sliding through hole 2122; wherein, this casing 112 is equipped with reference column 1125, and this joint section 212 has seted up slip through-hole 2122, through making reference column 1125 insert locate in slip through-hole 2122, so in order to guarantee the stability when joint section 212 removes, guarantee joint section 212 directional movement, and then guarantee the stability of first meshing section 211 and drive gear 22 meshing, in order to avoid both to break away from the unable drive gear 22 pivoted condition emergence of back, improve the stability of joint structure 20 joint.

Optionally, referring to fig. 6, a side of the clamping section 212 facing away from the first engaging section 211 is provided with a guiding slope 2121. The guiding inclined plane 2121 is arranged on the clamping section 212, so that when the outer wall surface of the main body of the ventilator abuts against the guiding inclined plane 2121 of the clamping section 212, the clamping section 212 is more easily retracted into the avoiding opening 1121 through the guiding of the guiding inclined plane 2121, and then the clamping section 212 is clamped into the clamping groove 31, thereby improving the clamping efficiency.

In an embodiment of this application, refer to fig. 3 and 4, breathing host computer 30 orientation the concave mounting groove 32 that is equipped with in placing platform 11's surface, catching groove 31 is seted up in the groove wall of mounting groove 32, it sets up in to dodge mouth 1121 the lateral wall of placing platform 11, placing platform 11 inlays to be located in the mounting groove 32, so that stopper 21 can be followed dodge mouth 1121 stretch out with catching groove 31 joint. Wherein, through forming mounting groove 32 to guarantee the accuracy of breathing host 30 and place the platform 11 location, buckle slot 31 is seted up in the groove wall face of mounting groove 32 simultaneously, and place the lateral wall of platform 11 and set up dodge mouth 1121, so this place the platform 11 can hold in this mounting groove 32 completely, so that buckle slot 31 and dodge mouthful 1121 and set up relatively, thereby this mounting groove 32 can also play limiting displacement, with the stability of further guaranteeing that breathing host 30 installs in removal base 10 department.

In an embodiment of the present application, referring to fig. 1 and 8, the ventilator trolley 100 further comprises a gas cylinder support 40, and the gas cylinder support 40 is detachably connected to the mobile base 10. Wherein, in order to improve the usability of breathing machine platform truck 100 to still be equipped with gas cylinder support 40 and can dismantle and connect in removing base 10, this gas cylinder support 40 can be used for putting oxygen cylinder etc. according to the demand, for medical staff provides reasonable solution, so that gas cylinder support 40 realizes diversified the application. The gas cylinder bracket 40 can be fixed on the movable base 10 by means of screw 50 connection or the like, so that the connection is convenient, and certainly, the gas cylinder bracket can also be connected by means of snap connection or the like, and can be selected by those skilled in the art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A ventilator trolley, comprising:

the mobile base is provided with a placing platform;

the clamping structure is movably arranged on the placing platform; and

2. The breathing machine trolley of claim 1, wherein an avoiding opening communicated with the inner space is formed in the placing platform, the clamping structure comprises a limiting block, and the clamping structure is movably arranged in the inner space of the placing platform, so that the limiting block can extend along the avoiding opening to be clamped with the buckling groove.

3. The ventilator trolley of claim 2 wherein the limiting block comprises a first engagement section and a clamping section, the clamping structure further comprises a transmission gear, the transmission gear is rotatably disposed on the placement platform, the transmission gear is engaged with the first engagement section, and the transmission gear rotates to drive the first engagement section to synchronously drive the clamping section to reciprocate in the avoidance port.

4. The ventilator trolley of claim 3 wherein the snap-fit structure further comprises a moving block, the moving block is provided with a second engaging section, the moving block is slidably disposed on the placement platform, and the second engaging section is engaged with the transmission gear.

5. The ventilator trolley of claim 4 wherein the moving block defines a guide hole, the moving block defines the second engaging section on a hole wall of the guide hole, and the transmission gear is partially inserted into the guide hole and engaged with the second engaging section.

6. The breathing machine trolley as claimed in claim 4, wherein the placement platform comprises a cover plate and a housing, the cover plate and the housing are connected in a covering manner, the housing is provided with the avoiding opening, the surface of the housing facing the cover plate is provided with a first guide groove and a second guide groove which are communicated, the second guide groove is communicated with the avoiding opening, the moving block is slidably arranged in the first guide groove, the limiting block is slidably arranged in the second guide groove, and the transmission gear is rotatably arranged at the joint of the first guide groove and the second guide groove.

7. The ventilator trolley as claimed in claim 6, wherein the housing further defines a handling opening communicating with the first guiding groove, the locking structure further comprises a handling switch and a return spring, the handling switch is rotatably connected to the placing platform and located at the handling opening, the handling switch is connected to the moving block, one end of the return spring abuts against an inner wall of the first guiding groove of the placing platform, and the other end of the return spring abuts against the moving block.

8. The breathing machine trolley of claim 6, wherein the housing is provided with a positioning column at the bottom of the second guide groove, the clamping section is provided with a sliding through hole, and the positioning column passes through the sliding through hole and is accommodated in the sliding through hole, so that when the limiting block slides in the second guide groove, the positioning column can slide relative to the sliding through hole;

9. The breathing machine trolley of claim 2, wherein the breathing main machine faces the placing platform, a mounting groove is concavely arranged on the surface of the placing platform, the catching groove is arranged on the groove wall surface of the mounting groove, the avoiding opening is arranged on the side wall of the placing platform, and the placing platform is embedded in the mounting groove, so that the limiting block can be arranged along the avoiding opening to extend out to be clamped with the catching groove.

10. The breathing machine trolley of any of claims 1 to 9 further comprising a gas cylinder support removably attached to the mobile base.