CN112870518B

CN112870518B - Water tank assembly and breathing machine

Info

Publication number: CN112870518B
Application number: CN201911205433.XA
Authority: CN
Inventors: 周才政; 余世密; 李永贵
Original assignee: Shenzhen Daya Medical Technology Co ltd
Current assignee: Shenzhen Daya Medical Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2022-09-06
Anticipated expiration: 2039-11-29
Also published as: CN112870518A

Abstract

The invention discloses a water tank assembly and a breathing machine, wherein the water tank assembly comprises a shell with an inner cavity and a water tank arranged in the inner cavity, the shell comprises a top plate, a cover plate and a side plate, one side of the side plate is connected with one side of the top plate, the top plate is provided with a first opening communicated with the inner cavity, the top of the side plate is provided with a groove extending downwards, the cover plate is used for sealing the first opening, one end of the cover plate is rotatably arranged in the groove, the groove is provided with two groove side walls arranged oppositely at intervals and a groove bottom wall positioned between the two groove side walls, and the groove bottom wall is upwards convexly provided with a limiting bulge used for limiting the cover plate to rotate more than 180 degrees relative to the top plate. According to the water tank assembly provided by the invention, the limiting bulge is arranged, so that the rotation angle of the cover plate can be prevented from exceeding 180 degrees, and the risk of damaging the cover plate is reduced.

Description

Water tank assembly and breathing machine

Technical Field

The invention relates to the technical field of medical instruments, in particular to a water tank assembly and a breathing machine using the same.

Background

The breathing machine on the existing market can be equipped with the humidification device usually and increase inspiratory air's humidity, and the air current can not only reduce the side effect that nasal cavity drying brought through humidification back of humidification device, but also can reduce the resistance in the nasal cavity to improve the treatment of breathing machine.

The humidifying device generally comprises a water tank serving as a water source, a heating assembly capable of heating water in the water tank and a shell accommodating the water tank and the heating assembly in the water tank, wherein the shell is provided with a cover plate capable of being opened, but the rotating angle of the existing cover plate in the opening process is too large and is usually larger than 180 degrees, so that the cover plate is easily damaged when a user operates the humidifying device due to misoperation.

Disclosure of Invention

In order to overcome the defects of the prior art, an object of the present invention is to provide a water tank assembly for solving the problem that the cover plate of the existing humidification device is easy to be damaged due to an excessively large rotation angle.

The invention also aims to provide a respirator, which uses the water tank assembly.

One of the purposes of the invention is realized by adopting the following technical scheme:

the utility model provides a water tank assembly, includes the shell that has the inner chamber and locates water tank in the inner chamber, the shell include roof, apron and one side with the curb plate that one side of roof is connected, the intercommunication has been seted up to the roof the first opening of inner chamber, the top of curb plate is equipped with downwardly extending's recess, the apron is used for the closing cap first opening just the one end of apron rotate install in the recess, the recess has two relative groove side walls that set up in interval and is located two tank bottom wall between the groove side wall, the groove bottom wall is upwards protruding to be equipped with and is used for the restriction the apron is relative roof turned angle surpasss 180 spacing arch.

Further, the water tank assembly further comprises a rotating shaft, one end of the rotating shaft is connected with the side wall of the groove, and the other end of the rotating shaft is connected with the cover plate so that the cover plate can rotate around the rotating shaft in the circumferential direction.

Further, the water tank subassembly still includes prevents flowing backward pipe and elastic sealing element, the shell still include with bottom plate and protruding the locating that the curb plate is connected the bottom plate orientation the frame that encloses of inner chamber one side, the water tank install in enclose in the frame, elastic sealing element locates enclose the frame and keep away from one side of curb plate, prevent flowing backward the pipe install in the water tank, just prevent flowing backward the pipe and be close to elastic sealing element's one end is equipped with the annular turn-ups of outside buckling, the last counterpoint of elastic sealing element is equipped with the confession annular turn-ups male ring channel.

Furthermore, the cover plate comprises a plate body rotatably mounted in the groove and a limiting portion convexly arranged on one side, facing the inner cavity, of the plate body, a limiting groove is formed in one side, close to the side plate, of the water tank, and a first inclined surface used for being matched with the limiting portion to enable the limiting portion to push the water tank to the elastic sealing element is formed in the groove wall, facing the side plate, of the limiting groove.

Furthermore, the cover plate further comprises a protruding block, a second inclined plane is arranged on one side, facing the first inclined plane, of the limiting portion, the second inclined plane extends towards the side plate in an inclined mode, and the protruding block is arranged on the second inclined plane.

Furthermore, the water tank assembly further comprises a button component, a clamping groove is formed in one side, far away from the side plate, of the cover plate, a mounting opening is formed in the top plate and located at one side, far away from the side plate, of the first opening and communicated with the inner cavity, the button component comprises a mounting seat, one end of the mounting seat is located in the mounting seat, the mounting seat faces towards one side of the inner cavity, a buckle piece, an elastic piece and a button, the buckle piece is used for extruding the buckle piece to enable the buckle piece to be clamped in the clamping groove, the button is movably connected with the mounting seat and used for driving the buckle piece to withdraw from the clamping groove, and one end of the button is exposed out of the mounting hole.

Furthermore, one end, far away from the elastic part, of the buckling part is provided with a third inclined surface used for being matched with the cover plate so that the cover plate pushes the buckling part to the elastic part.

Furthermore, the buckle piece comprises a main body part, an extension part and a convex column, wherein one end of the main body part is used for being in buckle fit with the clamping groove, the extension part extends reversely from two sides of the main body part respectively, the convex column extends from the extension part away from one side of the cover plate towards the direction away from the cover plate, the third inclined surface is arranged at one end, close to the cover plate, of the main body part, and the elastic piece is sleeved on the convex column and two ends of the elastic piece are respectively abutted against the extension part and the mounting seat.

Further, the button includes presses the splenium and locates press the splenium towards the ejector pad of main part one side, the ejector pad is kept away from the one end of pressing the splenium is equipped with the fourth inclined plane, the main part is seted up and is used for supplying the second opening that the ejector pad wore to establish, the second opening is kept away from the lateral wall of apron be equipped with the cooperation of fourth inclined plane is in order to promote the main part is followed the fifth inclined plane that withdraws from in the draw-in groove.

The second purpose of the invention is realized by adopting the following technical scheme:

a ventilator comprising a water tank assembly as described above.

Compared with the prior art, the invention has the beneficial effects that: through set up the spacing arch that upwards extends on the recess, the apron rotates and is blockked by spacing arch after certain angle, can not continue to rotate, prevents that the turned angle of apron from exceeding 180 to reduce the risk of damaging the apron because of user misoperation, improved the reliability of water tank set spare.

Drawings

FIG. 1 is a schematic structural diagram of a water tank assembly according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the water tank assembly shown in FIG. 1;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is an exploded view of the housing shown in FIG. 1;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

FIG. 6 is an exploded view of the backflow prevention tube and the elastic sealing member according to an embodiment of the present invention;

FIG. 7 is a schematic view of the cover plate and the shaft shown in FIG. 2;

FIG. 8 is a schematic structural view of the button member shown in FIG. 2;

FIG. 9 is a schematic view of the mounting base shown in FIG. 8;

FIG. 10 is a schematic structural view of the fastener shown in FIG. 8;

fig. 11 is a schematic structural view of the button shown in fig. 8.

In the figure: 100. a water tank assembly; 10. a housing; 20. a water tank; 11. an inner cavity; 12. a top plate; 13. a cover plate; 14. a side plate; 121. a first opening; 141. a groove; 142. a trench sidewall; 143. a tank bottom wall; 144. a limiting bulge; 30. a rotating shaft; 40. a backflow preventing pipe; 50. an elastomeric seal; 41. annular flanging; 51. an annular groove; 15. a base plate; 16. enclosing a frame; 131. a plate body; 132. a limiting part; 21. a limiting groove; 211. a first inclined plane; 133. a bump; 134. a second inclined plane; 60. a button member; 135. a card slot; 122. mounting holes; 61. a mounting seat; 62. a fastener; 63. an elastic member; 64. a button; 611. a transverse plate; 612. a vertical plate; 613. an accommodating cavity; 614. a notch; 621. a third inclined plane; 622. a main body portion; 623. an extension portion; 624. a convex column; 641. a pressing part; 642. pushing a block; 643. a fourth slope; 625. a second opening; 626. a fifth bevel; 644. a guide post; 615. a hollow cylinder; 70. the member is heated.

Detailed Description

The present invention is further described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the case of no conflict, any combination between the embodiments or technical features described below may form a new embodiment.

It should be noted that all directional indicators (such as upper, lower, left, right, front, back, inner, outer, top and bottom … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured" or "disposed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1 to 11, an embodiment of the present invention discloses a water tank assembly 100 for a breathing apparatus, the water tank assembly 100 includes a housing 10 and a water tank 20, the housing 10 has an inner cavity 11, the water tank 20 is installed in the inner cavity 11, the housing 10 includes a top plate 12, a cover plate 13 and a side plate 14 having one side connected to one side of the top plate 12, the top plate 12 is provided with a first opening 121 communicating with the inner cavity 11, the top of the side plate 14 is provided with a downwardly extending groove 141, the cover plate 13 is used for covering the first opening 121, one end of the cover plate 13 is rotatably installed in the groove 141, the groove 141 is provided with two groove side walls 142 arranged opposite to each other at an interval and a groove bottom wall 143 located between the two groove side walls 142, and the groove bottom wall 143 is upwardly protruded with a limiting protrusion 144 for limiting a rotation angle of the cover plate 13 relative to the top plate 12 to exceed 180 °.

In this embodiment, by providing the groove 141 on the top of the side plate 14, one end of the cover plate 13 is rotatably connected to the groove 141, the bottom wall 143 of the groove 141 is provided with the limiting protrusion 144 extending upward, and the limiting protrusion 144 is convexly disposed on the outer side of the bottom wall 143, so that after the cover plate 13 rotates to contact the limiting protrusion 144, the limiting protrusion 144 prevents the cover plate 13 from continuing to rotate, the rotation angle of the cover plate 13 is prevented from exceeding 180 °, and the risk of damaging the cover plate 13 due to misoperation of a user is reduced. And the rotation angle of the cover plate 13 can be controlled by controlling the height of the limiting protrusion 144.

As a modification of the present embodiment, the water tank assembly 100 further includes a rotation shaft 30, and one end of the rotation shaft 30 is connected to the tank sidewall 142 and the other end is connected to the cover plate 13, so that the cover plate 13 rotates around the axial direction of the rotation shaft 30. The rotating shaft 30 has a simple structure, is convenient to produce and assemble, and reduces the production cost.

As an improvement of this embodiment, the water tank assembly 100 further includes a backflow preventing pipe 40 and an elastic sealing element 50, the housing 10 further includes a bottom plate 15 and an enclosing frame 16 protruding from one side of the bottom plate 15 facing the inner cavity 11, the water tank 20 is installed in the enclosing frame 16, the elastic sealing element 50 is installed on one side of the enclosing frame 16 far away from the side plate 14, the backflow preventing pipe 40 is installed in the water tank 20, an outwardly bent annular flange 41 is disposed at one end of the backflow preventing pipe 40 close to the elastic sealing element 50, and an annular groove 51 for inserting the annular flange 41 is disposed on the elastic sealing element 50 in an aligned manner. One side wall of the water tank 20 is provided with an air inlet for air inlet, one end of the backflow preventing pipe 40 provided with an annular flanging 41 penetrates through the water tank 20 and is positioned in the air inlet, and the other end of the backflow preventing pipe is positioned in the middle of the water tank 20, so that water in the water tank 20 can be prevented from flowing backwards; the elastic sealing element 50 is made of silica gel material, and the annular groove 51 is positioned in the air inlet and seals the gap between the backflow preventing pipe 40 and the air inlet, thereby effectively preventing the problem of air flow leakage from the gap between the backflow preventing pipe 40 and the air inlet.

As a modification of this embodiment, the cover plate 13 includes a plate body 131 rotatably mounted in the groove 141 and a limiting portion 132 protruding from one side of the plate body 131 facing the inner cavity 11, a limiting groove 21 is formed on one side of the water tank 20 close to the side plate 14, and a first inclined surface 211 for cooperating with the limiting portion 132 to push the water tank 20 to the sealing member is formed on a wall of the limiting groove 21 facing the side plate 14. In the process of closing the cover plate 13, the limiting portion 132 can easily slide into the limiting groove 21 through the first inclined surface 211, and generates an extrusion action towards the elastic sealing element 50 on the water tank 20, so that the backflow preventing pipe 40 is tightly attached to the elastic sealing element 50, and the sealing effect of the sealing element is improved.

As a modification of this embodiment, the cover plate 13 further includes a protrusion 133, a second inclined surface 134 is disposed on a side of the limiting portion 132 facing the first inclined surface 211, the second inclined surface 134 extends obliquely from the plate body 131 toward the side plate 14, and the protrusion 133 is disposed on the second inclined surface 134. Specifically, the contact portion of the protrusion 133 with the first inclined surface 211 is a smooth curved surface, which facilitates the protrusion 133 to slide into and withdraw from the groove 141.

As an improvement of this embodiment, the water tank assembly 100 further includes a button member 60, a fastening groove 135 is disposed on a side of the cover plate 13 away from the side plate 14, a mounting hole 122 is disposed on the top plate 12 and located on a side of the first opening 121 away from the side plate 14 and communicated with the inner cavity 11, the button member 60 includes a mounting seat 61 mounted on a side of the top plate 12 facing the inner cavity 11, a locking member 62 having one end located in the mounting seat 61, an elastic member 63 for pressing the locking member 62 to fasten the locking member 62 in the fastening groove 135, and a button 64 movably connected to the mounting seat 61 and used for driving the locking member 62 to withdraw from the fastening groove 135, and one end of the button 64 protrudes out of the mounting hole 122. When the button 64 is pressed, the fastener 62 is withdrawn from the slot 135, and the cover 13 can be easily opened by the user; when the cover plate 13 is closed, the locking member 62 is inserted into the locking groove 135, so as to prevent the cover plate 13 from being opened automatically due to vibration or other external force factors, thereby improving the reliability of the water tank assembly 100.

As a modified form of this embodiment, the mounting base 61 includes a horizontal plate 611 disposed at an interval with the top plate 12 and an upright plate 612 extending from the horizontal plate 611 toward the top plate 12, the horizontal plate 611 and the upright plate 612 enclose a receiving cavity 613, the elastic element 63 is elastically compressed in the receiving cavity 613 to press the latch 62, and a notch 614 is disposed on a side of the upright plate 612 facing the cover 13 for passing through an end of the latch 62.

As a modification of this embodiment, an end of the latch 62 away from the elasticity is provided with a third slope 621 for cooperating with the cover 13 to make the cover 13 push the latch 62 towards the elastic member 63. When closing the cover plate 13, the cover plate 13 firstly contacts with the third inclined plane 621, because the contact position is an inclined plane, therefore the cover plate 13 can extrude the buckle piece 62 towards the direction far away from the side plate 14, the buckle piece 62 moves towards the direction far away from the side plate 14, a space is reserved for the cover plate 13, when the cover plate 13 moves to a specified position, the buckle piece 62 is disconnected from the cover plate 13, the end part of the buckle piece 62 provided with the third inclined plane 621 is just opposite to the clamping groove 135, the buckle piece 62 is automatically clamped into the clamping groove 135 under the action of the elastic piece 63, and the operation of a user is facilitated.

It is understood that the third slope 621 may be an inclined plane or a smooth curved surface, and is preferably a curved surface in this embodiment.

As an improvement of this embodiment, the locking element 62 includes a main body 622 having one end for being locked with the locking slot 135, extending portions 623 extending from two sides of the main body 622 in opposite directions, and a protruding column 624 extending from a side of the extending portion 623 away from the cover plate 13 toward a direction away from the cover plate 13, the third inclined surface 621 is disposed at one end of the main body 622 close to the cover plate 13, the protruding column 624 is sleeved with the elastic element 63, and two ends of the elastic element 63 respectively abut against the extending portions 623 and the vertical plate 612 of the mounting base 61. The elastic member 63 is preferably a spring, and the spring is directly sleeved on the boss 624 when being mounted, so that the spring is conveniently mounted, and meanwhile, the stability of the spring is also improved.

As an improvement of the present embodiment, the button 64 includes a pressing portion 641 and a pushing block 642 disposed on a side of the pressing portion 641 toward the main body portion 622, one end of the pushing block 642 away from the pressing portion 641 is provided with a fourth inclined surface 643, the main body portion 622 is provided with a second opening 625 through which the pushing block 642 passes, and a sidewall of the second opening 625 away from the cover 13 is provided with a fifth inclined surface 626 cooperating with the fourth inclined surface 643 to push the main body portion 622 to exit from the locking slot 135. The fourth inclined surface 643 extends obliquely downward toward the side plate 14, the fifth inclined surface 626 is parallel to the fourth inclined surface 643, when the cover plate 13 is opened, the pressing portion 641 is pressed downward first, the pressing portion 641 and the pushing block 642 move downward integrally, the pushing block 642 presses the fastening element 62 in a direction away from the side plate 14, the fastening element 62 is withdrawn from the clamping groove 135, and the cover plate 13 can be opened; after the button 64 is released, the latch 62 returns to the original position under the action of the elastic member 63, and the latch 62 presses the button 64 during the return to the original position, so that the button 64 can also return to the original position through the cooperation of the fourth inclined surface 643 and the fifth inclined surface 626.

It is understood that the fourth inclined surface 643 and the fifth inclined surface 626 may be both inclined planes, or both smooth curved surfaces, or one inclined plane and the other smooth curved surface.

As an improvement manner of this embodiment, the button 64 further includes four guiding pillars 644 disposed at the bottom of the pressing portion 641, the four guiding pillars 644 are located around the pushing block 642, a hollow column 615 is disposed on the horizontal plate 611 of the mounting base 61 in a positioning manner, and the guiding pillars 644 can movably penetrate through the hollow column 615.

As an improvement of the present embodiment, the water tank assembly 100 further comprises a heating member 70 disposed at the bottom of the water tank 20, the heating member 70 can heat the water in the water tank 20 to form water vapor, and when air enters the water tank 20 through the backflow prevention pipe 40, the air can be mixed with the water vapor to increase the humidity and temperature of the air, so as to improve the therapeutic effect of the ventilator using the water tank assembly 100.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A water tank assembly is characterized by comprising a shell with an inner cavity and a water tank arranged in the inner cavity, wherein the shell comprises a top plate, a cover plate and a side plate, one side of the side plate is connected with one side of the top plate, the top plate is provided with a first opening communicated with the inner cavity, the top of the side plate is provided with a groove extending downwards, the cover plate is used for sealing the first opening, one end of the cover plate is rotatably arranged in the groove, the groove is provided with two groove side walls arranged oppositely at intervals and a groove bottom wall positioned between the two groove side walls, and the groove bottom wall is upwards convexly provided with a limiting bulge for limiting the cover plate to rotate more than 180 degrees relative to the top plate;

the water tank assembly further comprises a backflow preventing pipe and an elastic sealing element, the shell further comprises a bottom plate connected with the side plate and an enclosing frame convexly arranged on one side of the bottom plate, which faces the inner cavity, the water tank is installed in the enclosing frame, the elastic sealing element is arranged on one side, which is far away from the side plate, of the enclosing frame, the backflow preventing pipe is installed in the water tank, an outwardly bent annular flanging is arranged at one end, which is close to the elastic sealing element, of the backflow preventing pipe, and an annular groove for the annular flanging to be inserted is formed in the elastic sealing element in an aligned mode;

the cover plate comprises a plate body rotatably installed in the groove and a limiting portion convexly arranged on one side, facing the inner cavity, of the plate body, a limiting groove is formed in one side, close to the side plate, of the water tank, and a first inclined surface used for being matched with the limiting portion to enable the limiting portion to push the water tank to the elastic sealing element is arranged on the groove wall, facing the side plate, of the limiting groove.

2. The water tank assembly as recited in claim 1, further comprising a rotation shaft having one end connected to said tank sidewall and the other end connected to said cover plate for rotating said cover plate around a circumferential direction of said rotation shaft.

3. The water tank assembly as defined in claim 1, wherein said cover plate further comprises a protrusion, a second inclined surface is formed on a side of said stopper portion facing said first inclined surface, said second inclined surface extends obliquely from said plate body toward said side plate, and said protrusion is formed on said second inclined surface.

4. The water tank assembly as claimed in claim 1, further comprising a button member, wherein a slot is disposed on a side of the cover plate away from the side plate, a mounting hole is disposed on the top plate and is located on a side of the first opening away from the side plate, the mounting hole communicates with the inner cavity, the button member comprises a mounting seat mounted on a side of the top plate facing the inner cavity, a latch member having one end located in the mounting seat, an elastic member for pressing the latch member to allow the latch member to be engaged in the slot, and a button movably connected to the mounting seat for driving the latch member to be withdrawn from the slot, and one end of the button protrudes out of the mounting hole.

5. The water tank assembly as recited in claim 4, wherein an end of said catch remote from said resilient member is provided with a third ramp for engaging said cover plate to cause said cover plate to urge said catch toward said resilient member.

6. The water tank assembly as claimed in claim 5, wherein the locking member comprises a main body portion having one end for locking with the locking groove, extending portions extending from opposite sides of the main body portion, and a protruding post extending from a side of the extending portion away from the cover plate in a direction away from the cover plate, the third inclined surface is disposed at one end of the main body portion close to the cover plate, the elastic member is sleeved on the protruding post, and two ends of the elastic member respectively abut against the extending portion and the mounting seat.

7. The water tank assembly as claimed in claim 6, wherein the button comprises a pressing portion and a pushing block disposed on a side of the pressing portion facing the main body portion, a fourth inclined surface is disposed at an end of the pushing block away from the pressing portion, the main body portion is provided with a second opening for the pushing block to pass through, and a fifth inclined surface cooperating with the fourth inclined surface to push the main body portion to exit from the slot is disposed on a side wall of the second opening away from the cover plate.

8. A respirator, comprising a water tank assembly as claimed in any one of claims 1 to 7.