Ventilation therapy device and locking structure therefor

Abstract

The utility model relates to a ventilation equipment field discloses a ventilation treatment equipment and locking structure thereof, and the locking structure includes the lock catch main part and the elastic part and the joint part set up on the lock catch main part. When humidification device and host computer connect, buckle and joint part contact and relatively move and make elastic part force and take place elastic deformation, make buckle and joint part further take place mutual movement, until buckle and joint part joint, the force that elastic part received disappears, elastic part rebounds, and joint part and buckle no longer relatively move; when humidification device and host computer are separated, elastic part force and take place elastic deformation, and buckle and joint part relatively move, and buckle can move to the direction of moving away from joint part, until and joint part are separated. Through the setting of elastic part, make buckle and joint part's connection and separation all realize through the elastic effect of elastic part, compared with the mode of plug and pull, and elastic operation is more labor-saving, convenient and more firm after joint.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment, and more specifically to a ventilation therapy device and its locking structure. Background Technology

[0002] Ventilation therapy equipment, as an assisted respiratory therapy device with artificial ventilation function, supplies breathing gas to the user through a breathing tube and user interface. By increasing the user's lung ventilation, it effectively improves the user's respiratory function and plays an important role in assisting the user's breathing. Commonly used ventilation therapy equipment is usually equipped with a humidification device and a main unit, so that the airflow flowing through the humidification device is heated and humidified before being delivered to the user, so as to provide the user with a good breathing experience.

[0003] Currently, the connection between the humidification device and the main unit is a plug-in connection. For example, the humidification device has a protrusion, and the main unit has a through hole. The protrusion is inserted into the through hole, and the friction between the protrusion and the inner wall of the through hole keeps them relatively fixed. When separating them, a large force needs to be applied to overcome the friction between them, which is inconvenient. Utility Model Content

[0004] The purpose of this invention is to overcome the problem of inconvenient disassembly of humidification devices and main units in the existing technology, and to provide a ventilation therapy device and its locking structure. The locking structure can make the locking part engage or disengage from the locking mechanism by moving the locking body, which facilitates the assembly and disassembly of the humidification device and the main unit.

[0005] To achieve the above objectives, the first aspect of this utility model provides a locking structure for connecting a humidification device and a main unit. The locking structure includes a locking body disposed on one of the humidification device or the main unit, a latch disposed on the other of the humidification device or the main unit, and an elastic part and a snap-fit ​​part disposed on the locking body. The locking body can be driven to move the snap-fit ​​part along a first direction, and cause the elastic part to undergo elastic deformation to snap the snap-fit ​​part onto or off the latch. The rebound force generated by the elastic part drives the locking body along a second direction opposite to the first direction, and tends to keep the snap-fit ​​part in the position of snapping with the latch.

[0006] Preferably, the snap-fit ​​portion has a snap-fit ​​groove for snapping into.

[0007] Preferably, the snap-fit ​​portion also has a first inclined guide surface formed on the corresponding slot for guiding the movement of the snap-fit. The snap-fit ​​can be driven to move along the first inclined guide surface to snap into the slot or move out of the slot. When the snap-fit ​​is located on the first inclined guide surface, the elastic portion is squeezed and undergoes elastic deformation, and rebounds when the snap-fit ​​is snapped into the slot or moved out of the slot.

[0008] Preferably, the card slot has a recessed groove in the vertical direction on the card engagement portion, and the buckle includes a card body corresponding to the card slot. The card body can be driven to move into or out of the card slot along the first inclined guide surface.

[0009] Preferably, the locking structure further includes a force-applying part connected to the latch body, the force-applying part and the elastic part being located at opposite ends on the latch body, and being able to be driven to move along a first direction, so that the elastic part undergoes elastic deformation and drives the locking part to move along the first direction.

[0010] Preferably, the locking structure has a limiting part, which cooperates with the humidification device or the main unit to limit the extreme positions of the elastic deformation and rebound of the elastic part.

[0011] Preferably, the force-applying part includes a connecting part and a pressing part, one end of the connecting part is connected to the end of the locking body, and the pressing part is located on the side of the connecting part away from the locking body.

[0012] Preferably, the end face of the latch body near the connecting portion forms a shoulder surface extending to the outside of the projection surface of the force-applying portion relative to the connecting portion. At least a portion of the shoulder surface is formed as a first limiting surface, and at least a portion of the surface of the pressing portion near the latch body is formed as a second limiting surface. The first and second limiting surfaces are formed as a limiting portion. The first limiting surface can be driven by the elastic portion to abut against a first limiting structure on either the humidification device or the main unit where the latch body is located, so as to limit the limit position of the elastic portion's rebound. The second limiting surface can be driven to abut against a second limiting structure on either the humidification device or the main unit where the latch body is located, so as to limit the limit position of the elastic portion's deformation.

[0013] Preferably, the elastic part is formed as a plurality of legs extending along one end of the locking body, and the legs have an angle with the locking body.

[0014] The second aspect of this utility model provides a ventilation therapy device, including a humidification device, a main unit, and the aforementioned locking structure, wherein the humidification device and the main unit are connected by the locking structure.

[0015] Preferably, the latch of the locking structure is provided on one of the humidification device and the main unit, and the other has an internal receiving area for mounting the latch body of the locking structure and a snap-fit ​​hole for inserting the latch. The latch body is movably disposed in the receiving area, the snap-fit ​​hole communicates with the receiving area, the snap-fit ​​part corresponds to the snap-fit ​​hole, and the latch can be driven to insert into the snap-fit ​​hole and snap-fit ​​onto the snap-fit ​​part.

[0016] Preferably, the bottom of the buckle has a second inclined guide surface parallel to the first inclined guide surface formed at the top of the snap-fit ​​portion, and the buckle can be driven to move along the first inclined guide surface through the second inclined guide surface to snap into the snap-fit ​​portion.

[0017] Preferably, the surface of the humidification device or main unit is formed with an operating hole communicating with the receiving area, and at least a portion of the force-applying part of the locking structure is exposed to the surface of the humidification device or main unit through the operating hole.

[0018] Preferably, the surfaces of the humidification device and the main unit that are fitted together by a locking structure are configured as a pair of mating surfaces. One of the mating surfaces has a protrusion protruding from the surface on which it is located, and the other of the mating surfaces has a socket for the protrusion to be inserted.

[0019] Preferably, the protrusion includes at least one of the following three: a limiting protrusion, a guide protrusion, and a positioning protrusion, and the insertion hole includes at least one of the following three: a limiting hole for the insertion of the limiting protrusion, a guide hole for the insertion of the guide protrusion, and a positioning hole for the insertion of the positioning protrusion.

[0020] Preferably, the guide protrusion is formed as a plate-like structure protruding from the mating surface, the positioning protrusion is formed as a rib-like structure extending from its surface, and the guide hole and the positioning hole are both formed as elongated holes.

[0021] Preferably, the humidifying device has an air inlet on its mating surface, and an air inlet pipe protruding from the surface is arranged around the air inlet, and the main unit has an air inlet hole for inserting the air inlet pipe on its mating surface; or, the main unit has an air outlet on its mating surface, and an air outlet pipe protruding from the surface is arranged around the air outlet, and the humidifying device has an air outlet hole for inserting the air outlet pipe on its mating surface.

[0022] Preferably, the humidification device is provided with a heating plate inside, and a connector protruding from the mating surface is provided on the mating surface of one of the humidification device and the main unit for electrical connection to the heating plate, and an interface for the connector to be inserted is provided on the mating surface of the other two.

[0023] With the above technical solution, when the humidification device is connected to the main unit, the latch and the locking part contact and move relative to each other, causing the elastic part to undergo elastic deformation under force. As the elastic part deforms, the latch and the locking part move further relative to each other until the latch and the locking part lock together. At this point, the force on the elastic part disappears, the elastic part rebounds, and the locking part and the latch no longer move relative to each other. When the humidification device is disconnected from the main unit, the elastic part undergoes elastic deformation under force, and the latch and the locking part move relative to each other. The latch can move away from the locking part until it disengages from the locking part. By designing the elastic part, the connection and separation of the latch and the locking part are both achieved through the elastic action of the elastic part. Compared with the plug-in method, the elastic operation is more labor-saving, convenient, and provides a more secure connection. Attached Figure Description

[0024] Figure 1 This is an exploded perspective view of the locking structure in conjunction with the humidification device and the main unit, according to one embodiment of this utility model.

[0025] Figure 2 yes Figure 1 Assembly 3D drawing;

[0026] Figure 3 yes Figure 2 Longitudinal section view;

[0027] Figure 4 yes Figure 2 A longitudinal section view from another direction;

[0028] Figure 5 yes Figure 1 A three-dimensional view of the locking structure;

[0029] Figure 6 yes Figure 1 A 3D view of the locking structure and its interaction with the main unit;

[0030] Figure 7 yes Figure 1 A three-dimensional view of the humidification device;

[0031] Figure 8 yes Figure 7 A three-dimensional view of the latch of the humidification device;

[0032] Figure 9 This is an exploded perspective view of the locking structure in conjunction with the humidification device and the main unit, according to another embodiment of this utility model.

[0033] Figure 10 yes Figure 9 Assembly 3D drawing;

[0034] Figure 11 yes Figure 9 A stereoscopic view from another perspective;

[0035] Figure 12 yes Figure 11 Assembly 3D drawing;

[0036] Figure 13 yes Figure 9 Longitudinal section view;

[0037] Figure 14 yes Figure 9 A longitudinal section view from another direction.

[0038] Explanation of reference numerals in the attached figures

[0039] 20-Humidification device; 217-Heating plate; 261-Snap fastener; 2611-Second inclined guide surface; 2612-Connecting plate; 2613-Clip body; 262-Limiting protrusion; 263-Guide protrusion; 264-Positioning protrusion; 265-Air inlet; 266-Air inlet pipe; 267-Connector;

[0040] 30 - Main unit; 31 - First limiting structure; 32 - Second limiting structure; 331 - Snap-fit ​​hole; 332 - Limiting hole; 333 - Guide hole; 334 - Positioning hole; 335 - Interface; 336 - Air inlet; 34 - Operation hole;

[0041] 40 - Locking structure; 41 - Snap-fit ​​part; 411 - Snap-slot; 412 - First inclined guide surface; 42 - Elastic part; 43 - Lock body; 431 - First limiting surface; 44 - Force-applying part; 441 - Second limiting surface; 442 - Reinforcing rib; 443 - Force-applying surface; 444 - Connecting part; 445 - Pressing part;

[0042] 50 - Dating surface. Detailed Implementation

[0043] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" generally refer to the corresponding orientations in the accompanying drawings. "Inner" and "outer" refer to the inner and outer contours of the corresponding components.

[0044] Please refer to Figures 1 to 8 This utility model provides a locking structure for connecting a humidification device and a main unit. The locking structure 40 includes a locking body 43 disposed on one of the humidification device 20 or the main unit 30, a latch 261 disposed on the other of the humidification device 20 or the main unit 30, and an elastic part 42 and a latching part 41 disposed on the locking body 43. The locking body 43 can be driven to move the latching part 41 relative to the main unit 30 in a first direction, and cause the elastic part 42 to undergo elastic deformation, so as to latch the latching part 41 onto or disengage from the latch 261 disposed on the humidification device 20. The rebound force generated by the elastic part 42 drives the locking body 43 in a second direction opposite to the first direction, and tends to keep the latching part 41 in the position of being latched with the latch 261.

[0045] The locking body 43 can be installed on the main unit 30. In this case, the latch 261 is installed or set on the humidification device 20. The latch 261 on the humidification device 20 is connected to the locking body 43 installed on the main unit 30, thereby realizing the connection between the humidification device 20 and the main unit 30. Alternatively, the locking body 43 can be installed on the humidification device 20. In this case, the latch 261 is installed or set on the main unit 30. The latch 261 on the main unit 30 is connected to the locking body 43 installed on the humidification device 20, thereby realizing the connection between the humidification device 20 and the main unit 30. The following explanation uses the example of the locking body 43 being installed on the main unit 30 and the latch 261 being set on the humidification device 20.

[0046] When the latch 261 is installed with the locking body 43, after the latch 261 contacts the locking body 43, the driving engagement part 41 moves along the first direction, providing movable space for the latch 261. When the latch 261 moves to a position where it can engage with the engagement part 41, the driving force applied to the engagement part 41 by the latch 261 disappears, the elastic part 42 rebounds, and the engagement part 41 moves along the second direction to form a secure engagement with the latch 261. When the latch 261 is separated from the engagement part 41, the driving body 43 moves along the first direction, providing movable space for the latch 261 away from the engagement part 41. When the latch 261 moves to a position where it can no longer engage with the engagement part 41, the driving force applied to the locking body 43 is removed, the elastic part 42 rebounds, and the engagement part 41 moves along the second direction to the initial position when it is not connected to the latch 261. The latch 261 is released from the latching relationship with the latching part 41 by driving the latching part 41. Compared with the existing technology of pulling the humidification device 20 away from the main unit 30, the operation is more labor-saving and convenient. Moreover, the connection structure formed after the latching is more reliable, preventing accidental contact from affecting the seal between the main unit 30 and the humidification device 20.

[0047] Among them, such as Figure 1 As shown, when the main unit 30 and the humidification device 20 are in the horizontal direction during normal operation, the first direction is the vertically downward direction and the second direction is the vertically upward direction.

[0048] In some embodiments, the latching portion 41 has a latching groove 411 for the latch 261 to be latched in and a first inclined guide surface 412 for guiding the movement of the latch 261. The latch 261 can be driven to move along the first inclined guide surface 412 to be latched in the latching groove 411 or to be moved out of the latching groove 411. When the latch 261 is located on the first inclined guide surface 412, the elastic portion 42 is compressed and undergoes elastic deformation, and rebounds when the latch 261 is latched in the latching groove 411 or moved out of the latching groove 411.

[0049] like Figure 5As shown, the first inclined guide surface 412 is an inclined surface. When the buckle 261 is engaged with the engaging part 41, it moves along the first inclined guide surface 412 of the engaging part 41. At the same time, it drives the engaging part 41 to move in the first direction. The elastic part 42 undergoes elastic deformation. When the buckle 261 is engaged in the slot 411, the pressure applied by the buckle 261 to the engaging part 41 disappears, the force on the elastic part 42 disappears, and it rebounds according to its own elastic force, driving the engaging part 41 to move in the second direction, thereby achieving engagement with the buckle 261. The first inclined guide surface 412 serves two purposes. First, it guides the movement of the buckle 261, preventing the buckle 261 from deviating in its direction of movement and thus failing to accurately engage with the slot 411. Second, the first inclined guide surface 412 allows the buckle 261 to slowly drive the engaging part 41 to move along the first direction, thereby slowly applying force to the elastic part 42. The elastic part 42 then slowly deforms, thus preventing the elastic part 42 from being damaged by instantaneous pressure.

[0050] Specifically, such as Figure 5 As shown, the snap-fit ​​portion 41 is formed into a square box-shaped structure with an opening at the top. Both the snap-fit ​​portion 41 and the latch 261 can be provided in multiples. For example, there can be three snap-fit ​​portions 41, where two snap-fit ​​portions 41 are located on the same horizontal line and are spaced apart, and the other snap-fit ​​portion 41 is located above the middle of the two snap-fit ​​portions 41. The corresponding latches 261 can also be provided as three corresponding to the snap-fit ​​portions 41.

[0051] In some embodiments, the slot 411 has a recessed groove in the vertical direction on the latching portion 41, and the latch 261 includes a latch body 2613 corresponding to the slot 411. The latch body 2613 can be driven to move along the first inclined guide surface 412 into or out of the slot 411.

[0052] At least a portion of the slot 411 and the latch 261 are both provided to extend vertically, so that they can move relative to each other in the vertical direction to achieve engagement and disengagement.

[0053] Specifically, such as Figure 1In one embodiment shown, the slot 411 is recessed downwards in the vertical direction. The connection process between the buckle 261 and the engaging part 41 is as follows: the buckle 261 moves from one side in the horizontal direction to contact the slot 411. As the buckle 261 moves further towards and contacts the slot 411 in the horizontal direction (that is, the buckle 261 moves and contacts the first inclined guide surface 412), the locking body 43, which is elastically deformable through the elastic part 42, undergoes elastic deformation during the further movement of the buckle 261. This causes the locking body 43 to move vertically downwards as a whole, i.e., the buckle 261 contacts the first inclined guide surface 412. The movement process is also the process of the locking body 43 continuously moving in the vertically downward direction (i.e., the first direction). When the buckle 261 moves to the edge of the first inclined guide surface 412, the buckle 261 disengages from the first inclined guide surface 412 and no longer contacts the first inclined guide surface 412, and therefore no longer applies force to the elastic part 42. Thus, the buckle 261 enters the slot 411. At the same time, the elastic part 42 rebounds under its own elastic restoring force, causing the locking body 43 to move in the vertically upward direction (i.e., the second direction) until the bottom end of the buckle 261 abuts against the bottom end of the slot 411, so that the buckle 261 is firmly connected in the slot 411. The process of separating the buckle 261 from the latching part 41 is as follows: The latching part 41 is subjected to a downward driving force in the vertical direction, which causes the elastic part 42 to undergo elastic deformation. At the same time, the latching groove 411 is moved to the bottom of the buckle 261, that is, the top of the latching groove 411 is lower than the bottom of the buckle 261, so that the latching groove 411 is separated from the buckle 261. The buckle 261 moves horizontally away from the latching part 41, the driving force applied to the latching part 41 is removed, the elastic part 42 rebounds, and the latching part 41 and the buckle 261 are separated.

[0054] like Figure 9 In another embodiment shown, the first direction is vertically upward, and the second direction is vertically downward, which is opposite to the direction of elastic deformation of the elastic part 42 in the previous embodiment. That is, the overall installation direction of the locking body 43 is opposite to the installation direction of the previous embodiment, and the corresponding setting direction of the buckle 261 is also opposite to the direction in the previous embodiment. The slot 411 is recessed vertically upward. The connection process between the buckle 261 and the engaging part 41 is as follows: the engaging part 41 is engaged with the slot 411 by the rebound action of the elastic part 42. The disengagement process between the buckle 261 and the engaging part 41 is as follows: the engaging part 41 is moved by a driving force to directly above the buckle 261, the slot 411 disengages from the buckle 261, the buckle 261 moves horizontally away from the engaging part 41, the driving force applied to the engaging part 41 is removed, the elastic part 42 rebounds, and the engaging part 41 and the buckle 261 are disengaged.

[0055] In some embodiments, the locking structure 40 further includes a force-applying portion 44 connected to the latch body 43. The force-applying portion 44 and the elastic portion 42 are located at opposite ends on the latch body 43 and can be driven to move along a first direction, so that the elastic portion 42 undergoes elastic deformation and drives the locking portion 41 to move along the first direction. The force-applying portion 44 includes a connecting portion 444 and a pressing portion 445. One end of the connecting portion 444 is connected to the end of the latch body 43, and the pressing portion 445 is disposed on the side of the connecting portion 444 away from the latch body 43.

[0056] The force that drives the latching part 41 to move in the first direction can be applied to the force-applying part 44, such as the driving force generated by an operator manually pressing the force-applying part 44. This force is then transmitted from the force-applying part 44 to the locking body 43, which in turn drives the latching part 41 to move. The force-applying part 44, the locking body 43, and the elastic part 42 can be integrally formed, and the latching part 41 is integrally formed on the locking body 43, which can improve the overall structural strength.

[0057] In addition, such as Figure 5 As shown, the force-applying part 44 consists of a connecting part 444 and a pressing part 445 that are perpendicular to each other. The connecting part 444 is connected to the locking body 43. The upper surface of the pressing part 445 is formed as a force-applying surface 443. The force-applying surface 443 can be a plane. The driving force is applied to the force-applying surface 443. The force-applying surface 443 is also used to cooperate with the operating hole 34 formed on the main unit 30 (described in detail later). The force-applying surface 443 can be flush with the surface on the main unit 30 where the operating hole 34 is opened, which increases the aesthetics of the main unit 30. The lower surface of the pressing part 445 is formed as a second limiting surface 441. The second limiting surface 441 can be an inclined surface or a plane, as long as it can abut against the second limiting structure 32, thereby ensuring the reliability of the limiting. The force-applying part 44 also includes a plurality of reinforcing ribs 442 that are spaced apart horizontally and vertically arranged. The reinforcing ribs 442 are connected to the connecting part 444 to increase the overall structural strength of the force-applying part 44.

[0058] In some embodiments, the locking structure 40 has a limiting portion that cooperates with the humidification device 20 or the main unit 30 to limit the extreme positions of the elastic deformation and rebound of the elastic portion 42. The end face of the locking body 43 near the connecting portion 444 forms a shoulder surface that extends to the outside of the projection surface of the force-applying portion 444 relative to the connecting portion 444. At least a portion of the shoulder surface is formed as a first limiting surface 431. At least a portion of the surface of the pressing portion 445 near the locking body 43 is formed as a second limiting surface 441. The first limiting surface 431 and the second limiting surface 441 are formed as limiting portions. The first limiting surface 431 can be driven by the elastic portion 42 to abut against the first limiting structure 31 on either the humidification device 20 or the main unit 30 where the locking body 43 is located, so as to limit the limit position of the elastic portion 42's rebound. The second limiting surface 441 can be driven to abut against the second limiting structure 32 on either the humidification device 20 or the main unit 30 where the locking body 43 is located, so as to limit the limit position of the elastic portion 42's deformation.

[0059] like Figure 3 and Figure 4 As shown, taking the example where both the first limiting structure 31 and the second limiting structure 32 are installed on the host 30, when the elastic part 42 is not under force, the first limiting surface 431 abuts against the first limiting structure 31. At this time, the elastic part 42 can be in a state of no elastic deformation or in a state of slight elastic deformation. The cooperation between the first limiting structure 31 and the first limiting surface 431 is used to prevent the elastic part 42 from continuing to move in the rebound direction, thereby controlling the rebound limit of the elastic part 42. When the elastic part 42 is under force until the second limiting surface 441 abuts against the second limiting structure 32, the external force cannot drive the elastic part 42 to continue to undergo elastic deformation. The cooperation between the second limiting structure 32 and the second limiting surface 441 is used to prevent the elastic part 42 from continuing to move in the direction of elastic deformation, thereby controlling the limit of elastic deformation of the elastic part 42 and avoiding fatigue of the elastic part 42 due to excessive elastic deformation.

[0060] Among them, such as Figure 5 As shown, the latch body 43 is hexagonal, with its top and bottom sides horizontally positioned, and two sides on each of its left and right sides, one horizontal and the other inclined. The latch body 43 has a symmetrical structure, with the line of symmetry being a vertical line, specifically the line connecting the midpoints of its top and bottom sides. The force-applying part 44 (described in detail later) is located at the center of the upper side of the latch body 43, and the two sides of the upper side of the latch body 43 protrude laterally from the force-applying part 44, forming the first limiting surface 431.

[0061] In some embodiments, the elastic portion 42 is formed as a plurality of legs extending along one end of the locking body 43, and the legs have an included angle with the locking body 43.

[0062] like Figure 5As shown, the legs extend downward along the lower end of the locking body 43. Multiple legs share the driving force, which can reduce the stress on a single leg and thus increase the service life of a single leg. In addition, the arrangement of multiple legs can also provide stable support for the locking structure and the force-applying part 44.

[0063] Among them, such as Figure 5 As shown, the bottom of the latch body 43 is formed as a plane, and the angle between the support leg and the bottom of the latch body 43 is greater than 90°, thereby achieving elastic deformation.

[0064] This utility model also provides a ventilation therapy device, including a humidification device 20, a main unit 30 and the aforementioned locking structure 40, wherein the humidification device 20 and the main unit 30 are connected by the locking structure 40.

[0065] In some embodiments, the latch 261 of the locking structure 40 is disposed on one of the humidification device 20 and the main unit 30, and the other has an internal receiving area for mounting the latch body 43 of the locking structure 40 and a snap-fit ​​hole 331 for inserting the latch 261. The latch body 43 is movably disposed in the receiving area, the snap-fit ​​hole 331 communicates with the receiving area, the snap-fit ​​part 41 corresponds to the snap-fit ​​hole 331, and the latch 261 can be driven to insert into the snap-fit ​​hole 331 and snap onto the snap-fit ​​part 41.

[0066] As mentioned earlier, the latch 261 can be installed on the humidification device 20 or on the main unit 30, and the locking structure 40 and the snap-fit ​​hole 331 can be installed on the main unit 30 or on the humidification device 20. The following description will take the example of the locking structure 40 and the snap-fit ​​hole 331 being installed on the main unit 30 and the latch 261 being installed on the humidification device 20.

[0067] The locking structure 40 is movably disposed within the receiving area, providing protection for the locking structure 40 and enhancing the aesthetics of the main unit 30 and the ventilation therapy equipment. When the latch 261 engages with the latching part 41, the latch 261 is aligned with the latching hole 331 and, through the latching hole 331, with the latching part 41 within the receiving area. The latch 261 moves towards the latching part 41, passes through the latching hole 331, and then engages with the latching part 41.

[0068] In some embodiments, the latch 261 includes a latch body 2613 formed as a bent plate-like structure, the latch body 2613 being configured to engage with the latching portion 41. The bottom of the latch 261 has a second inclined guide surface 2611 parallel to a first inclined guide surface 412 formed at the top of the latching portion 41, and the latch 261 can be driven to move along the first inclined guide surface 412 via the second inclined guide surface 2611 to engage with the latching portion 41. The second inclined guide surface 2611 is formed as an inclined surface parallel to the inclined first inclined guide surface 412.

[0069] like Figure 8 As shown, when the card body 2613 contacts the latching part 41, the second inclined guide surface 2611 of the card body 2613 first contacts the first inclined guide surface 412 of the latching part 41. The second inclined guide surface 2611 slides along the first inclined guide surface 412. Since the latch 261 is in a horizontally moving state, the latching part 41 will be forced to move downward during the sliding process, causing the elastic part 42 to undergo elastic deformation. When the second inclined guide surface 2611 slides along the first inclined guide surface 412, the second inclined guide surface 2613 will slide downward. When the inclined guide surface 412 slides to the position of the card body 2613 directly above the card slot 411, the pressure exerted by the card body 2613 on the card engaging part 41 disappears, and the force that drives the card engaging part 41 to move downward disappears. This force is also the force that drives the elastic part 42 to undergo elastic deformation. The elastic part 42 rebounds, causing the card slot 411 to move to the outer periphery of the card body 2613, that is, the card body 2613 is inserted into the card slot 411, and the engagement between the buckle 261 and the card engaging part 41 is completed.

[0070] In addition, the buckle 261 also includes two connecting plates 2612 disposed on opposite sides of the buckle body 2613. The connecting plates 2612 are used to fix the buckle 261 to the mating surface 50 of the humidification device 20, thereby increasing the structural strength of the buckle 261 and the stability of the connection between the buckle 261 and the host 30.

[0071] In some embodiments, the first limiting structure 31 and the second limiting structure 32 are formed within the receiving area.

[0072] like Figure 4 As shown, the first limiting structure 31 is used to cooperate with the first limiting surface 431 of the locking structure 40. The first limiting structure 31 is disposed above the latch body 43. When the elastic part 42 rebounds, the latch body 43 moves upward until its first limiting surface 431 abuts against the first limiting structure 31. The latch body 43 can no longer move upward and is fixed in the receiving area, and the elastic part 42 reaches the limit rebound position. Figure 3 As shown, the second limiting structure 32 is used to cooperate with the second limiting surface 441 of the locking structure 40. The second limiting structure 32 is located below the second limiting surface 441. When the elastic part 42 undergoes elastic deformation, the force-applying part 44 moves upward until its second limiting surface 441 abuts against the second limiting structure 32. The force-applying part 44 can no longer move downward, and the elastic part 42 reaches the limit deformation position.

[0073] In some embodiments, the surface of the humidification device 20 or the main unit 30 is formed with an operation hole 34 communicating with the receiving area, and at least a portion of the force-applying portion 44 of the locking structure 40 is exposed to the surface of the humidification device 20 or the main unit 30 through the operation hole 34.

[0074] Taking the operation hole 34 on the main unit 30 as an example, the operation hole 34 is used to cooperate with the force-applying part 44 of the locking structure 40. Therefore, the component corresponding to the locking structure 40 is the component with the operation hole 34, for example, the operation hole 34 is opened on the main unit 30. The locking structure 40 is located in the receiving area. In order to facilitate the movement of the locking structure 40, the operation hole 34 is opened on the main unit 30. The operator can press the force-applying part 44 of the locking structure 40 through the operation hole 34.

[0075] In some embodiments, the surfaces of the humidification device 20 and the main unit 30 that are attached by the locking structure 40 are configured as a pair of mating surfaces 50, one of which has a protrusion protruding from the surface, and the other has a socket for inserting the protrusion.

[0076] The protrusion includes at least one of the following three: a limiting protrusion 262, a guide protrusion 263, and a positioning protrusion 264; the insertion hole includes at least one of the following three: a limiting hole 332 for the insertion of the limiting protrusion 262, a guide hole 333 for the insertion of the guide protrusion 263, and a positioning hole 334 for the insertion of the positioning protrusion 264.

[0077] The guide protrusion 263 is formed as a plate-like structure protruding from the mating surface 50, and the positioning protrusion 264 is formed as a rib-like structure extending from the surface it is on. The guide hole 333 and the positioning hole 334 are both formed as elongated holes.

[0078] The limiting protrusion 262, the guide protrusion 263, and the positioning protrusion 264 are preferably disposed on the humidification device 20 because the humidification device 20 contains liquid and gas and needs to form a sealed space. Protrusions are easier to be disposed on the humidification device 20 than holes. The limiting hole 332, the guide hole 333, and the positioning hole 334 are preferably disposed on the main unit 30 because the main unit 30 does not need to form a sealed space and is easier to open than the humidification device 20.

[0079] like Figure 6 and Figure 7As shown, the limiting protrusion 262 is formed into a columnar structure, and two are staggered. Correspondingly, the limiting hole 332 is formed into a circular hole, and two holes are also provided corresponding to the limiting protrusion 262. The cooperation between the limiting protrusion 262 and the limiting hole 332 is used to limit the relative installation position of the humidification device 20 and the main unit 30. The guide protrusion 263 is formed into a vertically arranged plate-like structure, and the corresponding guide hole 333 is formed into a vertical elongated hole. During the connection process between the humidification device 20 and the main unit 30, the cooperation between the guide protrusion 263 and the guide hole 333 is used to limit the relative movement direction of the two, allowing them to move relative to each other along a fixed path to the installation position. The positioning protrusion 264 is formed as a horizontally arranged rib-like structure, and the corresponding positioning hole 334 is formed as a horizontal elongated hole. The humidification device 20 may include a lower shell and an upper shell covering the lower shell. The upper shell and the lower shell are fastened together. The positioning protrusion 264 can be formed as a connecting buckle for connecting the upper shell and the lower shell. After the positioning protrusion 264 is fixed in the positioning hole 334, it can firmly fix the upper shell and the lower shell of the humidification device 20. When ventilating, it can prevent the air pressure in the humidification device 20 from being too high, which would cause the upper shell to warp up in a certain place, thereby preventing the humidification device 20 from leaking air and increasing noise.

[0080] In some embodiments, the humidification device 20 has an air inlet 265 formed on its mating surface 50, and an air inlet pipe 266 protruding from the surface is arranged around the air inlet 265. The main unit 30 has an air inlet hole 336 formed on its mating surface 50 for inserting the air inlet pipe 266. A heating plate 217 is provided inside the humidification device 20. A connector 267 for electrical connection to the heating plate 217 and protruding from the mating surface 50 is provided on the mating surface 50 of one of the humidification device 20 and the main unit 30, and an interface 335 for inserting the connector 267 is provided on the other mating surface 50.

[0081] When the humidification device 20 is connected to the main unit 30, the buckle 261 is located in the snap-fit ​​hole 331, the limiting protrusion 262 is located in the limiting hole 332, the guide protrusion 263 is located in the guide hole 333, the positioning protrusion 264 is located in the positioning hole 334, the air inlet pipe 266 is located in the air inlet hole 336, and the connector 267 is inserted into the interface 335. The heating plate 217 is powered by the main unit 30, which increases the stability of the installation of the humidification device 20 and the main unit 30. In addition, the mating surface 50 of the humidification device 20 fits snugly with the mating surface of the main unit 30, which can hide all the protruding parts on the mating surface 50 of the humidification device 20, thereby improving the aesthetics of the entire ventilation therapy equipment.

[0082] In other embodiments, the air inlet 265 on the humidification device 20 can be replaced by an air outlet on the main unit 30, the air inlet pipe 266 surrounding the air inlet 265 can be replaced by an air outlet pipe surrounding the air outlet, and the air inlet hole on the main unit 30 into which the air inlet pipe 266 is inserted can be replaced by an air outlet hole formed on the humidification device 20 into which the air outlet pipe is inserted. The connector 267 can be provided on the mating surface 50 of the main unit 30, and the corresponding interface 335 for the connector 267 to be inserted can be provided on the mating surface 50 of the humidification device 20.

[0083] like Figures 1 to 4 The diagram shows a ventilation therapy device according to one embodiment of the present invention. The locking structure 40 has a force-applying part 44, a locking body 43, and an elastic part 42 arranged sequentially from top to bottom. An operating hole 34 is located on the top of the main unit 30. A slot 411 is vertically downward-facing, and a buckle 261 is bent downwards to fit the slot 411. Figures 9 to 14 The diagram shows another embodiment of the ventilation therapy device of this utility model. The elastic part 42, the locking body 43, and the force-applying part 44 of the locking structure 40 are arranged sequentially from top to bottom. The operating hole 34 is located at the bottom of the main unit 30. The slot 411 is vertically upward, and the buckle 261 is bent upward to fit the slot 411. In this embodiment, the aesthetics of the upper surface of the main unit 30 are maintained, and the waterproof effect is good. Both embodiments can achieve the connection between the humidification device 20 and the main unit 30.

[0084] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A locking structure for connecting a humidification device and a main unit, characterized in that, The locking structure (40) includes a locking body (43) disposed on one of the humidification device (20) or the main unit (30), a latch (261) disposed on the other of the humidification device (20) or the main unit (30), and an elastic part (42) and a snap-fit ​​part (41) disposed on the locking body (43). The locking body (43) can be driven to move the snap-fit ​​part (41) along a first direction and cause the elastic part (42) to undergo elastic deformation to snap the snap-fit ​​part (41) onto the latch (261) or disengage it from the latch (261). The rebound force generated by the elastic part (42) drives the locking body (43) along a second direction opposite to the first direction and tends to keep the snap-fit ​​part (41) in the position of snapping with the latch (261).

2. The locking structure according to claim 1, characterized in that, The latching part (41) has a slot (411) for the latch (261) to be engaged.

3. The locking structure according to claim 2, characterized in that, The latching part (41) is also provided with a first inclined guide surface (412) for guiding the movement of the latch (261) corresponding to the latching groove (411). The latch (261) can be driven to move along the first inclined guide surface (412) to latch into the latching groove (411) or move out of the latching groove (411). When the latch (261) is located on the first inclined guide surface (412), the elastic part (42) is squeezed and undergoes elastic deformation, and rebounds when the latch (261) is latched into the latching groove (411) or moves out of the latching groove (411).

4. The locking structure according to claim 3, characterized in that, The slot (411) has a recessed groove in the vertical direction on the latching part (41), and the buckle (261) includes a card body (2613) corresponding to the slot (411). The card body (2613) can be driven to move along the first inclined guide surface (412) into or out of the slot (411).

5. The locking structure according to claim 1, characterized in that, The locking structure (40) further includes a force-applying part (44) connected to the latch body (43). The force-applying part (44) and the elastic part (42) are located at opposite ends on the latch body (43) and can be driven to move along the first direction so that the elastic part (42) undergoes elastic deformation and drives the snap-fit ​​part (41) to move along the first direction.

6. The locking structure according to claim 5, characterized in that, The locking structure (40) has a limiting part that cooperates with the humidification device (20) or the main unit (30) to limit the extreme positions of the elastic deformation and rebound of the elastic part (42).

7. The locking structure according to claim 6, characterized in that, The force-applying part (44) includes a connecting part (444) and a pressing part (445). One end of the connecting part (444) is connected to the end of the locking body (43), and the pressing part (445) is disposed on the side of the connecting part (444) away from the locking body (43).

8. The locking structure according to claim 7, characterized in that, The end face of the latch body (43) near the connecting portion (444) forms a shoulder surface extending beyond the projection plane of the force-applying portion (444) relative to the connecting portion (444). At least a portion of the shoulder surface is formed as a first limiting surface (431). At least a portion of the surface of the pressing portion (445) near the latch body (43) is formed as a second limiting surface (441). The first limiting surface (431) and the second limiting surface (441) constitute the limiting portion. The first limiting surface (431) can... The elastic part (42) can be driven to abut against the first limiting structure (31) on either the humidification device (20) or the main unit (30) where the locking body (43) is located, so as to limit the limit position of the elastic part (42) rebound. The second limiting surface (441) can be driven to abut against the second limiting structure (32) on either the humidification device (20) or the main unit (30) where the locking body (43) is located, so as to limit the limit position of the deformation of the elastic part (42).

9. The locking structure according to claim 1, characterized in that, The elastic part (42) is formed as a plurality of legs extending along one end of the latch body (43), and the legs have an angle with the latch body (43).

10. A ventilation therapy device, characterized in that, It includes a humidification device (20), a main unit (30), and a locking structure (40) as claimed in any one of claims 1 to 9, wherein the humidification device (20) and the main unit (30) are connected via the locking structure (40).

11. The ventilation therapy device according to claim 10, characterized in that, The latch (261) of the locking structure (40) is disposed on one of the humidification device (20) and the main unit (30). The other of the two has an internal receiving area for mounting the latch body (43) of the locking structure (40) and a snap-fit ​​hole (331) for inserting the latch (261). The latch body (43) is movably disposed in the receiving area. The snap-fit ​​hole (331) communicates with the receiving area. The snap-fit ​​part (41) corresponds to the snap-fit ​​hole (331). The latch (261) can be driven to insert into the snap-fit ​​hole (331) and snap onto the snap-fit ​​part (41).

12. The ventilation therapy device according to claim 11, characterized in that, The bottom of the buckle (261) is formed with a second inclined guide surface (2611) parallel to the first inclined guide surface (412) formed at the top of the latching part (41), and the buckle (261) can be driven to move along the first inclined guide surface (412) via the second inclined guide surface (2611) to latch onto the latching part (41).

13. The ventilation therapy device according to claim 11, characterized in that, The surface of the humidification device (20) or the main unit (30) is formed with an operation hole (34) communicating with the receiving area, and at least a portion of the force-applying part (44) of the locking structure (40) is exposed to the surface of the humidification device (20) or the main unit (30) through the operation hole (34).

14. The ventilation therapy device according to claim 10, characterized in that, The surfaces of the humidification device (20) and the host (30) that are attached by the locking structure (40) are configured as a pair of mating surfaces (50). One of the mating surfaces (50) has a protrusion protruding from the surface on it, and the other has a socket for the protrusion to be inserted.

15. The ventilation therapy device according to claim 14, characterized in that, The protrusion includes at least one of the following three: a limiting protrusion (262), a guide protrusion (263), and a positioning protrusion (264), and the insertion hole includes at least one of the following three: a limiting hole (332) for the insertion of the limiting protrusion (262), a guide hole (333) for the insertion of the guide protrusion (263), and a positioning hole (334) for the insertion of the positioning protrusion (264).

16. The ventilation therapy device according to claim 15, characterized in that, The guide protrusion (263) is formed as a plate-like structure protruding from the mating surface (50), the positioning protrusion (264) is formed as a rib-like structure extending from the surface, and the guide hole (333) and the positioning hole (334) are both formed as elongated holes.

17. The ventilation therapy device according to claim 14, characterized in that, The humidification device (20) has an air inlet (265) on its mating surface (50), and an air inlet pipe (266) protruding from the surface is arranged around the air inlet (265). The main unit (30) has an air inlet hole (336) on its mating surface (50) for the air inlet pipe (266) to be inserted. Alternatively, the main unit (30) has an air outlet on its mating surface (50), and an air outlet pipe protruding from the surface is arranged around the air outlet. The humidification device (20) has an air outlet hole on its mating surface (50) for the air outlet pipe to be inserted.

18. The ventilation therapy device according to claim 14, characterized in that, The humidification device (20) is provided with a heating plate (217) inside. One of the mating surfaces (50) of the humidification device (20) and the main unit (30) is provided with a connector (267) for electrical connection to the heating plate (217) and protruding from the mating surface (50). The other mating surface (50) is provided with an interface (335) for the connector (267) to be inserted.

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