CN210992466U

CN210992466U - Novel respirator expiratory valve locking device

Info

Publication number: CN210992466U
Application number: CN201921326200.0U
Authority: CN
Inventors: 邹水奇
Original assignee: Shenzhen Probe Science & Technology Co ltd
Current assignee: Shenzhen Prunus Medical Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-07-14
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a novel breathing machine expiratory valve locking device, including expiratory valve shell, pressing plate, first circular arc connecting block, articulate pivot on the expiratory valve shell inner wall, with the fixed first gear drive subassembly of pivot, set up push rod assembly on expiratory valve shell inner wall and with the fixed second gear drive subassembly of push rod assembly, second gear drive subassembly is connected with first gear drive subassembly, is provided with the spring in the pivot. The utility model discloses compact structure, transmission reliability is high for expiratory valve installation and unblock can one-hand operation, and do not receive the limitation of expiratory valve appearance.

Description

Novel respirator expiratory valve locking device

Technical Field

The utility model belongs to the technical field of the breathing machine, especially, relate to a novel breathing machine expiratory valve locking device.

Background

At present, the function of expiratory valve locking unlocking device is to realize the necessary dismouting operation of expiratory valve subassembly cleaning and disinfecting, and current unlocking device has two kinds: the first spiral locking mechanism achieves the locking purpose through pressure applied by a spiral surface, the spiral locking mechanism has specific requirements (necessarily cylindrical) on the appearance of the expiratory valve, and the exhaust gas outlet is arranged on the side surface and moves in two directions (radial rotation and axial movement) when the expiratory valve is locked, so that the exhaust gas outlet is difficult to seal; the second type is a hook type locking mechanism, the movable hook hooks the bayonet to achieve the purpose of locking, because the movable hook moves in one direction (moves axially), the shape of the expiratory valve has no specific requirement, the sealing treatment is relatively simple, but the unlocking operation can be generally only on the same plane with the hook. The unlocking device is complex in structure, high in cost and low in transmission reliability.

Therefore, the prior art is to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a novel breathing machine expiratory valve locking means, aims at solving the technical problem who mentions in the background art, compact structure, and the transmission reliability is high for expiratory valve installation and unblock can one-hand operation, and do not receive the limitation of expiratory valve appearance.

The utility model discloses a novel breathing machine expiratory valve locking device, including expiratory valve shell, pressing plate, first circular arc connecting block, articulate pivot on the expiratory valve shell inner wall, with the fixed first gear drive subassembly of pivot, set up push rod assembly on expiratory valve shell inner wall and with the fixed second gear drive subassembly of push rod assembly, second gear drive subassembly is connected with first gear drive subassembly, is provided with the spring in the pivot.

Preferably, when external force is exerted to make the pressing plate outwards pull, the first arc connecting block rotates anticlockwise to drive the second gear transmission assembly to rotate clockwise, and the push rod assembly moves towards the inner side of the expiration valve shell to realize unlocking.

Preferably, after external force disappeared, the pressure board resets towards expiratory valve casing outer wall based on the spring, and first circular arc connecting block clockwise rotates in order to drive second gear drive assembly anticlockwise rotation, and push rod subassembly resets and realizes the locking.

The utility model discloses a novel breathing machine expiratory valve locking means through the pull operation of one hand, can be convenient, realize unblock and locking function fast, and based on meshing between first gear drive subassembly and the second gear drive subassembly, the transmission reliability is high.

Drawings

Fig. 1 is a three-dimensional schematic view of the locking device of the breathing machine exhalation valve of the present invention;

fig. 2 is a front view of the locking device of the exhalation valve of the breathing machine of the present invention;

fig. 3 is a top view of the locking device of the exhalation valve of the breathing machine of the present invention;

fig. 4 is a partially enlarged view of a portion B in fig. 3.

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

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It is noted that relative terms such as "first," "second," and the like may be used to describe various components, but these terms are not intended to limit the components. These terms are only used to distinguish one component from another component. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention. The term "and/or" refers to a combination of any one or more of the associated items and the descriptive items.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a three-dimensional schematic view of the locking device for the exhalation valve of the ventilator of the present invention; fig. 2 is a front view of the locking device of the exhalation valve of the breathing machine of the present invention; fig. 3 is a top view of the locking device of the exhalation valve of the breathing machine of the present invention; fig. 4 is a partially enlarged view of a portion B in fig. 3.

The utility model discloses a novel respirator expiratory valve locking device, including expiratory valve case 399, pressing plate 20, first circular arc connecting block 21, hinge pivot 30 on expiratory valve case inner wall 10, the first gear drive subassembly fixed with pivot 30, set up push rod subassembly 60 on expiratory valve case inner wall 10 and the second gear drive subassembly 70 fixed with push rod subassembly 60, second gear drive subassembly 70 is connected with the first gear drive subassembly, is provided with spring 99 in the pivot; the utility model discloses a novel breathing machine expiratory valve locking means through the pull operation of one hand, can be convenient, realize unblock and locking function fast, and based on meshing between first gear drive subassembly and the second gear drive subassembly, the transmission reliability is high.

Specifically, the first gear transmission assembly includes a second circular arc connecting block 41 and a second fixing plate 40, one end of the second fixing plate 40 is fixed on the rotating shaft 30, the other end of the second fixing plate is connected with the second circular arc connecting block 41, a second tooth 42 is arranged on the second circular arc connecting block 41, and the second tooth is engaged with the second gear transmission assembly 70. The first gear transmission assembly is limited in specific structure in the preferred embodiment, and the reliability and the stability of transmission of the first gear transmission assembly and the second gear transmission assembly are improved through gear meshing. Specifically, an opening 11 is formed in the exhalation valve housing 399, one end of the first arc connecting block 21 is fixed with the pressing plate 20, and the other end of the first arc connecting block extends into the opening 11 and is fixed with the rotating shaft 30; the first arc connecting block represents a connecting plate structure which is arc-shaped. The push rod assembly 60 is provided with a spiral plate 50 so that the push rod assembly can be moved to the outside and the inside when rotated.

The utility model discloses a novel breathing machine expiratory valve locking device, the work flow includes first state and second state, and the first state is: when external force is applied to cause the pressing plate 20 to pull outwards (which can be understood as pulling towards the direction far away from the expiratory valve housing), the first arc connecting block 21 rotates anticlockwise to drive the second gear transmission assembly to rotate clockwise, and the push rod assembly 60 moves towards the inner side of the expiratory valve housing to realize unlocking. The second state is: after external force disappears, the pressing plate resets towards the outer wall 202 of the expiratory valve shell based on the spring, the first arc connecting block rotates clockwise to drive the second gear transmission assembly to rotate anticlockwise, and the push rod assembly resets to realize locking.

More specifically, as shown in fig. 4, in the first state, the push rod assembly moves towards the inner side of the exhalation valve housing, and further drives the exhalation valve housing 399 to elastically deform towards the inner side, the lock tongue on the exhalation valve housing 399 exits from the engagement surface with the stationary hook, and at this time, the exhalation valve is in the unlocked state. In the second state, the push rod assembly 60 and the exhalation valve housing return to the initial position, and the latch tongue on the exhalation valve housing returns to engage with the stationary latch hook 499, so that the exhalation valve is in a locked state. In this technical scheme, the push rod subassembly moves in order to realize the unblock to expiratory valve casing inboard, and the push rod subassembly resets towards expiratory valve casing outer arm 202 based on the spring and realizes that the locking all belongs to current locking, unblock embodiment, and the guard point of this embodiment lies in, presses the connected relation of briquetting, first circular arc connecting block, pivot, first gear drive assembly, second gear drive assembly.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a novel breathing machine expiratory valve locking device, its characterized in that, includes expiratory valve casing, pressing plate, first circular arc connecting block, articulates pivot on the expiratory valve casing inner wall, the first gear drive subassembly fixed with the pivot, set up push rod subassembly on expiratory valve casing inner wall and the second gear drive subassembly fixed with push rod subassembly, second gear drive subassembly is connected with first gear drive subassembly, is provided with the spring in the pivot.

2. The novel locking device for the exhalation valve of a respirator as claimed in claim 1, wherein when an external force is applied to pull the pressing plate outwards, the first circular arc connecting block rotates anticlockwise to drive the second gear transmission assembly to rotate clockwise, and the push rod assembly moves towards the inner side of the exhalation valve housing to unlock the exhalation valve housing.

3. The novel locking device for the exhalation valve of the respirator as claimed in claim 2, wherein after the external force disappears, the pressing plate resets towards the outer wall of the exhalation valve housing based on the spring, the first arc connecting block rotates clockwise to drive the second gear transmission assembly to rotate counterclockwise, and the push rod assembly resets to realize locking.