SLIDING PROTECTOR FOR VENTILATOR AIR EXIT
Patent Information
- Authority / Receiving Office
- VN · VN
- Patent Type
- Applications
- Current Assignee / Owner
- COFOE MEDICAL TECH CO LTD
- Filing Date
- 2024-10-10
- Publication Date
- 2026-06-15
AI Technical Summary
The air outlets of existing ventilators lack protection measures and are easily contaminated by dust, bacteria or other foreign objects in the environment, causing pollutants to enter the user's respiratory tract and cause discomfort or respiratory tract infection.
A sliding protection device for the air outlet of the ventilator is designed. By setting the air outlet assembly inside the housing and equipped with a sliding protective cover, the air outlet is protected from entering the air outlet when the ventilator is not in use. When needed, the protective cover opens the vent pipe to connect.
Effectively prevent foreign objects from entering the air outlet, reduce dust and bacterial contamination, improve the cleanliness of the ventilator, and protect the health of users.
Smart Images
Figure VN1202602974_0
Abstract
Description
A sliding protection device for the air outlet of a ventilator Technical Field
[0001] The invention relates to a sliding protection device for an air outlet of a respirator, and belongs to the technical field of application of household respirators. Background Art
[0002] As a device to assist breathing, ventilators are increasingly becoming commonplace in homes where they are needed. The workings of a ventilator are shown in Figure 1. The turbine blower assembly 3 draws ambient air into the ventilator and pressurizes it. The pressurized air then passes through the ventilator's water tank 5 and is then blown out through the ventilator's outlet. When in use, a ventilator outlet is connected to a face mask 10, through which the user breathes the pressurized air from the ventilator, assisting breathing.
[0003] The air outlet (outlet pipe) of existing ventilators protrudes from the ventilator housing, such as the ventilator disclosed in the design patent publication number CN306453142S. The advantage of this arrangement is that it is convenient for the user to plug the ventilator into the air outlet and to detach the ventilator from the air outlet, but the disadvantage of this arrangement is that the air outlet is directly exposed to the air and lacks protection measures. When the ventilator is stored, its air outlet is easily contaminated by dust, bacteria or other foreign matter in the environment, such as pet hair. When a user uses a ventilator with a contaminated air outlet, the pollutants will be transported into the mask by pressurized air and enter the user's respiratory tract, causing discomfort to the user and even respiratory or lung infection.
[0004] Summary of the Invention
[0005] In order to overcome the problems existing in the prior art, the present invention provides a sliding protection device for the air outlet of a ventilator, which can provide reliable protection for the air outlet of the ventilator and prevent foreign matter from entering the air outlet. The specific technical solution is as follows.
[0006] A ventilator air outlet sliding protection device comprises a ventilator body, a ventilator tube and a protective cover, wherein the ventilator body comprises a housing, a fan assembly and an air outlet assembly, wherein the fan assembly is provided with a fan air inlet and a fan air outlet, the air outlet assembly is communicated with the fan air outlet and is used to connect to the ventilator tube, and is characterized in that:
[0007] The air outlet assembly is located inside the shell, and the shell is provided with an opening corresponding to the air outlet assembly; the protective cover is slidingly arranged relative to the shell, and the protective cover can be opened and closed. When the protective cover is in the closed state, the protective cover covers the air outlet assembly, and when the protective cover is in the open state, the air outlet assembly is in an exposed state.
[0008] This technical solution breaks the conventional design of having the air outlet protrude from the housing. By locating the air outlet assembly inside the housing and using a sliding protective cover, the air outlet assembly is reliably protected when the ventilator is not in use, preventing foreign matter from entering the assembly. When the ventilator is needed, the protective cover is opened, allowing the ventilation tube to pass through the opening in the housing and connect to the air outlet assembly.
[0009] Furthermore, the air outlet assembly includes a connecting tube and a central connecting tube. One end of the connecting tube is connected to the housing, and the other end is connected to the outer periphery of the central connecting tube. A gap is defined between the connecting tube and the central connecting tube. The end of the central connecting tube closest to the housing does not protrude from the housing. When the protective cover is open, the vent tube passes through the opening of the housing and is inserted into the gap between the connecting tube and the central connecting tube. The vent tube tightly fits the air outlet assembly, thereby securing the vent tube.
[0010] Furthermore, the protective cover abuts against the vent tube in response to the plugging action of the vent tube to the air outlet assembly. The advantage of this design is that after the vent tube is used and removed, the protective cover automatically returns to the closed state under the action of the elastic member.
[0011] Furthermore, it also includes a first elastic member and an elastic limiting assembly;
[0012] A fixing seat is provided on the shell, and the protective cover is slidably provided on the fixing seat; when the protective cover is opened, the elastic limiting component moves upward to lock the protective cover; when the vent pipe is plugged into the air outlet assembly, the elastic limiting component is triggered to move downward to release the lock of the protective cover, and when the vent pipe is removed from the air outlet assembly, the protective cover is closed under the action of the first elastic member.
[0013] Furthermore, one end of the first elastic member is connected to the protective cover, and the other end is connected to the housing or the fixing seat.
[0014] Furthermore, the elastic limiting assembly includes a second elastic member and a limiting bracket, the second elastic member is used to apply an elastic force that causes the limiting bracket to move toward the protective cover; preferably, the elastic force direction of the first elastic member and the elastic force direction of the second elastic member are perpendicular to each other; the limiting bracket is slidably arranged on the air outlet assembly, and one end of the second elastic member is connected to the limiting bracket and the other end is connected to the air outlet assembly. When the protective cover is in the open state, the ventilating tube can pass through the opening and connect to the air outlet assembly. When the user inserts the ventilating tube into the ventilating tube fixing assembly, the movement of the limiting bracket is triggered so that the limiting bracket releases the lock on the protective cover, and the protective cover abuts against the ventilating tube under the action of the first elastic member; after use, after the ventilating tube is removed, the protective cover will automatically return to the closed state under the action of the first elastic member. Among them, the first elastic member can apply an elastic force to the protective cover to return to the closed state. When the ventilator is not in use, the first elastic member can ensure that the protective cover is always in the closed state, that is, the protective cover seals the opening of the shell.
[0015] Furthermore, a guide hole is provided on the connecting tube, and the position-limiting bracket passes through the guide hole, so that the position-limiting bracket can be reliably slidably connected to the air outlet assembly.
[0016] Furthermore, a channel is provided on the wall of the connecting cylinder, a movable trigger is provided through the channel, and an end of the trigger is located in the gap between the connecting cylinder and the central connecting pipe.
[0017] Furthermore, the trigger is a first oblique wedge, and the limiting bracket is provided with a second oblique wedge that cooperates with the first oblique wedge; when the vent tube is inserted into the gap between the connecting tube and the central connecting tube, the first oblique wedge can slide in the mounting hole. With the arrangement of the oblique wedge, when the vent tube is inserted into the gap, the vent tube triggers the first oblique wedge to slide in the horizontal direction of the opening, thereby driving the second oblique wedge to drive the limiting bracket downward. The movement of the limiting bracket can unlock the protective cover, so that the protective cover abuts against the vent tube under the action of the first elastic member. When the vent tube is removed, the protective cover automatically returns to the closed state under the action of the first elastic member.
[0018] Furthermore, the position-limiting bracket includes two parallel rods, with the second oblique wedge connected between the two rods. This arrangement allows the first elastic member to pass between the two rods, preventing interference between the first elastic member and the position-limiting bracket. Simultaneously, the two rods can better position the protective cover, preventing uneven force on the protective cover, which could cause deflection or jamming.
[0019] Furthermore, the passage is a vertical strip-shaped through-slot, and the trigger is a crossbar mounted on the limit bracket and movable up and down along the strip-shaped through-slot. When the vent tube is inserted into the gap between the connecting tube and the central connecting tube, the crossbar is pressed downward, thereby driving the limit bracket downward. The downward movement of the limit bracket releases the lock on the protective cover, allowing the protective cover to abut against the vent tube under the action of the first elastic member.
[0020] Furthermore, the inner surface of the protective cover is provided with an escape groove corresponding to the limit bracket. The provision of the escape groove can minimize the mutual interference between the protective cover and the limit bracket during the sliding process. The inner surface refers to the surface facing the air outlet assembly.
[0021] Furthermore, the inner surface of the protective cover is provided with a positioning groove, and when the protective cover is in the open state, the limiting bracket abuts against the side wall of the positioning groove. By providing the positioning groove, the limiting bracket does not have to abut against the edge of the protective cover, which allows for more freedom and flexibility in setting the position of the limiting bracket.
[0022] According to another aspect of the present invention, the invention further comprises a first elastic member and a plate member located within the housing, the air outlet assembly being connected to the plate member; the protective cover being slidably disposed between the housing and the plate member; a limiting member being disposed on the plate member, the protective cover being able to be limited by the limiting member when opened;
[0023] When the vent pipe is connected to the air outlet assembly, the plate component is pressed downward, and the plate component is elastically deformed so that the limiting member releases the limit on the protective cover;
[0024] When the vent pipe is separated from the air outlet assembly, the protective cover is closed under the action of the first elastic member to cover the air outlet assembly.
[0025] When the protective cover is open, the vent tube can pass through the opening of the housing and connect to the air outlet assembly. When the user inserts the vent tube into the air outlet assembly, the plate elastically deforms, causing the retaining member to move and disengage from the protective cover. The protective cover, under the action of the first elastic member, abuts the vent tube. After use, when the vent tube is removed, the protective cover automatically returns to its closed position under the action of the first elastic member. A space for the protective cover is formed between the plate and the housing, limiting the sliding range of the protective cover.
[0026] Furthermore, one end of the elastic member is connected to the protective cover, and the other end is connected to the housing or the plate component.
[0027] Furthermore, the plate component is fixedly connected to the outer periphery of one end of the connecting tube, and the plane where the plate component is located is perpendicular to the axial direction of the connecting tube; a limit member is provided on the surface of the plate component, and the limit member is located on the side of the plate component away from the connecting tube.
[0028] Furthermore, the limiting member has an inclined surface on a side close to the connecting tube.
[0029] Furthermore, a hook is provided on the shell, one end of the plate component is engaged with the hook, and the other end of the plate component is fixed to the shell by a fastener. By adopting this fixing method, the ventilation pipe fixing assembly can be quickly fixed to the shell, and the ventilation pipe fixing assembly can be accurately positioned on the shell. More advantageously, only one end of the plate component is fixed with a fastener, and the other end is connected to the hook. The end of the plate component connected to the hook is equivalent to a free end. When the plate component is subjected to pressure perpendicular to the plane of the plate component, the end of the plate component connected to the hook can be slightly displaced, which makes it easier for the plate component to undergo elastic deformation.
[0030] According to another aspect of the present invention, the ventilator body further includes a first elastic member and a plate component located in the shell; a protective cover is slidably arranged between the shell and the plate component, one end of the first elastic member is connected to the protective cover, and the other end is connected to the shell or the plate component; the first elastic member is used to apply an elastic force to the protective cover to switch from an open state to a closed state.
[0031] Furthermore, the plate component is fixedly connected to the outer periphery of the connecting tube near one end of the housing, and the plane of the plate component is perpendicular to the axial direction of the connecting tube. Positioning protrusions are provided at both ends of the plate component, extending from the plate component toward the housing. When the plate component is fixed to the housing, the height of the positioning protrusions extending toward the housing is greater than the thickness of the protective cover, thereby ensuring that the protective cover can slide in the gap between the housing and the plate component.
[0032] Furthermore, the housing is provided with a hook, one end of the plate member is engaged with the hook, and the other end of the plate member is fixed to the housing via a fastener. This fixing method can quickly fix the plate member and the air outlet assembly to the housing, and facilitates accurate positioning of the air outlet assembly on the housing.
[0033] Furthermore, the protective cover is provided with a guide protrusion, and the plate component is provided with a corresponding guide groove; the plate component is also provided with a limit buckle for use with the guide protrusion, and the limit buckle is located at the end of the guide groove away from the connecting tube. When the protective cover slides from the closed state to the open state, the guide protrusion slides in the guide groove until the limit protrusion is snapped into the limit buckle, and the limit buckle can limit the protective cover to prevent the protective cover from automatically rebounding. It can be understood by those skilled in the art that: the locking force between the limit protrusion and the limit buckle can prevent the protective cover from rebounding, but when the user applies external force to the protective cover, the limit protrusion can be detached from the limit buckle, and then the protective cover will automatically slide to a position that closes the opening of the shell under the action of the elastic member.
[0034] According to another aspect of the present invention, further, a fixing seat is provided on the shell, and the protective cover is slidably provided on the fixing seat; and a first elastic member is also included, one end of the first elastic member is connected to the protective cover, and the other end is connected to the shell or the fixing seat.
[0035] Furthermore, the fixing base is provided with a guide bar and / or a guide groove, and the protective cover is provided with a guide groove and / or a guide bar that matches the fixing base. By providing the guide bar and / or the guide groove, it can be ensured that the protective cover is stably and reliably slidably mounted on the sliding cover mounting base.
[0036] Furthermore, a locking positioning protrusion is provided on the fixing base, and a locking positioning groove is provided on the protective cover to cooperate with the locking positioning protrusion. When the protective cover slides from the closed state to the open state, the protective cover slides on the fixing base until the locking positioning protrusion is engaged with the locking positioning groove. The engagement of the locking positioning protrusion and the locking positioning groove can limit the protective cover and prevent the protective cover from automatically rebounding under the elastic force of the elastic member. It will be understood by those skilled in the art that: the engagement force of the locking positioning protrusion and the locking positioning groove can prevent the protective cover from rebounding, but when the user applies external force to the protective cover, the locking positioning protrusion can be disengaged from the locking positioning groove, and the protective cover will then automatically slide to a position that blocks the opening of the shell under the action of the elastic member.
[0037] Compared with the prior art, the present invention has the following beneficial effects:
[0038] The present invention is simple to use and easy to operate, and can effectively protect the ventilator's air outlet, preventing contamination of the ventilator's air outlet and other pipes, such as the internal water tank, from external dust and bacteria. In a preferred embodiment, the protective cover can abut the ventilator in response to the insertion of the ventilator into the air outlet assembly, which helps prevent users from forgetting to replace the protective cover after using the ventilator due to their usual operating habits, thereby affecting the working effectiveness of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] FIG1 is a schematic diagram of the operation of an existing ventilator;
[0040] FIG2 is a schematic diagram of a middle cross-section of a sliding protection device for an air outlet of a ventilator according to Example 1 of the present invention;
[0041] FIG3 is an enlarged view of the circled area in FIG2 ;
[0042] 4 is a cross-sectional view of the rod position of the limiting bracket of the ventilator air outlet sliding protection device according to Example 1 of the present invention (the protective cover is in the closed state);
[0043] FIG5 is an enlarged view of the circled area in FIG4 ;
[0044] 6 is a schematic diagram of a partial cross-section of the middle portion of the sliding protective device for the air outlet of a ventilator according to Example 1 of the present invention (the protective cover is in a closed state);
[0045] 7 is a partial cross-sectional schematic diagram of the position of the rod of the limit bracket of the ventilator air outlet sliding protection device of Example 1 (or Example 4) of the present invention (the protective cover is in the closed state);
[0046] FIG8 is a partial schematic diagram of the protective cover in the open state according to Example 1 of the present invention;
[0047] FIG9 is a schematic diagram of the ventilator air outlet sliding protection device of Example 1 connected to the ventilation tube;
[0048] FIG10 is an enlarged view of the circled area in FIG9 ;
[0049] FIG11 is a partial top view of the ventilator air outlet sliding protection device of Example 1 with the protective cover removed;
[0050] FIG12 is a partial bottom view of the ventilator air outlet sliding protection device of Example 1 with the protective cover removed;
[0051] FIG13 is a schematic diagram (top view) of the protective cover of the sliding protective device for the air outlet of the ventilator in Example 1;
[0052] FIG14 is a schematic diagram of the protective cover of the sliding protective device for the air outlet of the ventilator of Example 1 (viewed from below);
[0053] FIG15 is a schematic diagram of a limit bracket of the sliding protection device for the air outlet of the ventilator in Example 1;
[0054] 16 is a schematic diagram of a modified example of a position limiting bracket of the ventilator air outlet sliding protection device of Example 1;
[0055] 17 is a cross-sectional view of the first oblique wedge of the ventilator air outlet sliding protection device of Example 1;
[0056] 18 is a schematic diagram of a modified example of the protective cover of the sliding protective device for the air outlet of the ventilator in Example 1;
[0057] FIG19 is a partial schematic diagram of the protective cover of the ventilator air outlet sliding protection device of Example 1 in an open state (another modified example of the limit bracket);
[0058] FIG20 is a schematic diagram of the middle section of the sliding protection device for the air outlet of a ventilator according to Example 2 (or Example 3) of the present invention;
[0059] FIG21 is an enlarged view of the circled area in FIG20 ;
[0060] FIG22 is a schematic diagram of a partial cross-section of the middle portion of the sliding protection device for the air outlet of a ventilator according to Example 2 (or Example 3) of the present invention;
[0061] FIG23 is a partial cross-sectional view of the screw positions of the sliding protection device for the air outlet of the ventilator according to Example 2 (or Example 3) of the present invention (the protection cover is in the closed state);
[0062] FIG24 is a partial cross-sectional view of the screw positions of the sliding protection device for the air outlet of the ventilator according to Example 2 (or Example 3) of the present invention (the protection cover is in the open state);
[0063] FIG25 is a schematic diagram of a ventilator air outlet sliding protection device according to Example 2 of the present invention;
[0064] FIG26 is a cross-sectional view of a ventilator air outlet sliding protection device according to Example 2 of the present invention;
[0065] FIG27 is an enlarged view of area A in FIG25 ;
[0066] FIG28 is a schematic diagram (top view) of the protective cover of the sliding protective device for the air outlet of the ventilator according to Example 2 (or Example 3) of the present invention;
[0067] FIG29 is a schematic diagram of a protective cover of a sliding protective device for an air outlet of a ventilator according to Example 2 of the present invention (viewed from below);
[0068] FIG30 is a schematic diagram of a modified example of the protective cover of the sliding protective device for the air outlet of a ventilator according to Example 2 of the present invention (viewed from below);
[0069] FIG31 is a partial bottom view of the sliding protection device for the air outlet of a ventilator according to Example 2 (or Example 3) of the present invention (with the protection cover in a closed state);
[0070] FIG32 is a partial bottom view of the sliding protection device for the air outlet of the ventilator according to Example 2 (or Example 3) of the present invention (with the protection cover in the open state);
[0071] FIG33 is a bottom view of the upper cover of the sliding protection device for the air outlet of the ventilator according to Example 2 (or Example 3) of the present invention;
[0072] 34 is a schematic diagram of a modified example of the ventilator air outlet sliding protection device of Example 2 of the present invention;
[0073] 35 is a cross-sectional view of a modified example of the ventilator air outlet sliding protection device of Example 2 of the present invention;
[0074] FIG36 is a schematic diagram of the contact between the protective cover and the limiting member of the sliding protective device for the air outlet of the ventilator according to Example 2 of the present invention;
[0075] FIG37 is a schematic diagram of the contact between the protective cover of the sliding protective device for the air outlet of the ventilator and the ventilator according to Example 2 of the present invention;
[0076] FIG38 is a schematic diagram of a ventilator air outlet sliding protection device according to Example 3 of the present invention;
[0077] FIG39 is a cross-sectional view of the ventilator air outlet sliding protection device of Example 3 of the present invention;
[0078] FIG40 is a schematic diagram of a ventilator air outlet sliding protection device according to a modified embodiment of Example 3 of the present invention;
[0079] 41 is a partial cross-sectional view of a ventilator air outlet sliding protection device according to a modified embodiment of the present invention;
[0080] FIG42 is a partial enlarged view of a sliding protective device for a ventilator air outlet according to a modified embodiment of the third embodiment of the present invention (with the protective cover in the open state); FIG43 is a schematic mid-section view of a sliding protective device for a ventilator air outlet according to a fourth embodiment of the present invention;
[0081] FIG44 is an enlarged view of the circled area in FIG43;
[0082] FIG45 is a schematic diagram of a partial cross-section of the middle portion of the sliding protective device for the air outlet of a ventilator according to Example 4 of the present invention (the protective cover is in a closed state);
[0083] FIG46 is a schematic diagram of a partial cross-section of the middle portion of the sliding protective device for the air outlet of a ventilator according to Example 4 of the present invention (the protective cover is in the open state);
[0084] FIG47 is a schematic diagram of a ventilator air outlet sliding protection device connected to a ventilation tube according to Example 4 of the present invention;
[0085] FIG48 is a schematic diagram of a protective cover of a sliding protective device for an air outlet of a ventilator according to Example 4 of the present invention (viewed from below);
[0086] Figure 49 is a top view of the upper cover of the ventilator air outlet sliding protection device of embodiment 4 of the present invention
[0087] FIG50 is a bottom view of the upper cover of the sliding protection device for the air outlet of the ventilator according to Example 4 of the present invention;
[0088] FIG51 is a schematic diagram of a modified embodiment of Example 4 of the present invention, wherein the sliding protection device for the air outlet of the ventilator is connected to the ventilator tube;
[0089] Figure 52 is an enlarged view of the circled portion in Figure 50;
[0090] FIG53 is a partial schematic diagram of a modified example of Example 4 of the present invention showing a ventilator air outlet sliding protection device with the protective cover removed;
[0091] Figure 54 is an overhead view of the protective cover of the sliding protection device for the air outlet of the ventilator in a modified example of embodiment 4 of the present invention.
[0092] In the figure: 1-upper cover, 1.1-fixing seat, 1.1.1-opening, 1.1.2-guide groove, 1.1.3-first guide column, 1.1.4-locking positioning protrusion, 1.2-hook, 1.3-screw column, 1.4-guide strip, 1.5-upper cover fixing column, 2-lower cover, 3-fan assembly, 3.1-fan air inlet, 3.2-fan body, 3.3-fan air outlet, 4-control panel, 5-water tank, 5.1-water tank air inlet, 5.2-water tank air outlet, 6-1-ventilation pipe fixing assembly, 6-air outlet assembly, 6.1-through hole, 6.2-connecting tube, 6.3-center connecting pipe, 6.4-guide hole, 6.5-mounting hole, 6.6-fourth guide column, 6.7-second elastic member, 6.8- First oblique wedge, 6.9-gap, 6.10-strip through groove, 6.11-guide groove, 6.12-positioning protrusion, 6.13-plate component, 6.14-limiting member, 6.14.1-inclined surface, 6.15-limiting buckle, 7-protective cover, 7.1-guide strip, 7.2-second guide column, 7.3-anti-slip groove, 7.4-first elastic member, 7.5-avoidance groove, 7.6-positioning groove, 7.7-toggle protrusion, 7.8-protective cover fixing column, 7.9-guide protrusion, 7.10-locking positioning groove, 8-ventilation pipe, 9-limiting bracket, 9.1-rod, 9.2-second oblique wedge, 9.3-third guide column, 9.4-inclined surface, 9.5-touch member, 10-mask, 11-screw. DETAILED DESCRIPTION
[0093] The present invention will be described in more detail below by way of embodiments and in conjunction with the accompanying drawings. Identical features / components are marked with the same reference numerals in all the drawings.
[0094] Example 1
[0095] Referring to Figures 1-17, a sliding protective device for the air outlet of a ventilator is shown. The ventilator includes a main body and a ventilator tube 8. The main body comprises an upper cover 1 and a lower cover 2 (the upper cover 1 and lower cover 2 form the housing). The space formed by the upper and lower covers 1 and 2 houses a fan assembly 3, a control panel 4, a water tank 5, and an air outlet assembly 6. When the ventilator is in use, the ventilator tube 8 is plugged into the air outlet assembly 6. When the ventilator is no longer in use, the ventilator tube 8 is removed from the air outlet assembly 6. The fan assembly 3 includes a fan inlet 3.1, a fan body 3.2, and a fan outlet 3.3. The water tank 5 includes a water tank inlet 5.1 and a water tank outlet 5.2. Air from the external environment enters the fan body 3.2 through the fan inlet 3.1 and is pressurized. The pressurized air then flows through the fan outlet 3.3 into the water tank inlet 5.1 and then into the water tank outlet 5.2 to adjust the humidity. Finally, the air enters the ventilation tube 8 through the outlet assembly 6. The outlet assembly 6 serves as the air outlet of the ventilator.
[0096] Referring to Figures 2 to 8, the air outlet assembly 6 is located inside the upper cover 1 (i.e., below the upper cover 1). The air outlet assembly 6 includes a connecting tube 6.2 and a central connecting pipe 6.3. One end of the connecting tube 6.2 is connected to the upper cover 1, and the other end is connected to the outer periphery of the central connecting pipe 6.3. There is a gap between the connecting tube 6.2 and the central connecting pipe 6.3; the end of the central connecting pipe 6.3 close to the upper cover 1 does not protrude from the upper cover 1. The lower end of the central connecting pipe 6.3 of the air outlet assembly 6 is connected to the water tank air outlet 5.2. As the air outlet of the ventilator, the function of the air outlet assembly 6 is to provide a reliable installation interface for the ventilation pipe 8. The air outlet assembly 6 needs to have a certain degree of rigidity and is preferably manufactured by one-piece molding.
[0097] Referring to Figures 2 to 10, a fixing seat 1.1 is provided on the upper cover 1, and a protective cover 7 is slidably provided on the fixing seat 1.1; the fixing seat 1.1 is fixedly connected to the upper cover 1, and the fixing seat 1.1 can be integrally formed with the upper cover 1, or can be formed as a separate component and then assembled and connected with the upper cover 1, and the fixing seat 1.1 is roughly a rectangular parallelepiped structure protruding from the upper cover 1; the fixing seat 1.1 is provided with an opening 1.1.1 corresponding to the air outlet assembly 6. Correspondingly, when the fixing seat 1.1 is integrally formed with the upper cover 1, that is, when The upper cover 1 is provided with an opening 1.1.1; when the fixing base 1.1 and the upper cover 1 are assembled in a separate connection, it is understood that both the fixing base 1.1 and the upper cover 1 are provided with an opening 1.1.1, and the openings of the two correspond to each other; or the opening 1.1.1 is provided only on the upper cover 1, and the fixing base 1.1 is provided on one side of the opening 1.1.1 (not shown), and the length of the fixing base 1.1 does not extend to cover the upper part of the shell opening 1.1.1. In this case, there is no need to provide an additional opening on the fixing base 1.1. The protective cover 7 has an open state and a closed state. When the protective cover 7 is in the closed state, the protective cover 7 blocks (closes) the opening 1.1.1. When the protective cover 7 is in the open state, the air outlet assembly 6 is in an exposed state, and the vent pipe 8 can pass through the opening 1.1.1 to connect to the air outlet assembly 6. The outer surface of the protective cover 7 is also provided with an anti-slip groove 7.3. The anti-slip groove 7.3 facilitates the user to operate the protective cover 7, thereby sliding the protective cover 7 open. It should be noted that in the above embodiment, the fixing seat 1.1 is provided protruding from the upper cover 1. However, those skilled in the art will appreciate that the fixing seat 1.1 may be provided on the inner surface of the upper cover 1, or even as a plate-shaped component located inside the upper cover 1, as long as the fixing seat 1.1 can provide a sliding and positioning guide for the protective cover 7.
[0098] As shown in Figures 12 to 14, in order to facilitate the protective cover 7 to automatically return to the closed state, a first guide column 1.1.3 is provided on the lower surface of the fixing seat 1.1, and a second guide column 7.2 is provided on the lower surface of the protective cover 7. The two ends of the first elastic member 7.4 (helical spring) are respectively sleeved on the first guide column 1.1.3 and the second guide column 7.2. In order to facilitate the passage of the first elastic member 7.4, a through hole 6.1 is provided on the side of the air outlet assembly 6. The first elastic member 7.4 can apply elastic force to the protective cover 7 to restore it to the closed state. When the ventilator is not in use, the first elastic member 7.4 can ensure that the protective cover 7 is always in the closed state, that is, the protective cover 7 blocks and closes the opening 1.1.1.
[0099] As shown in Figures 11 and 14, guide grooves 1.1.2 are provided on both sides of the fixing base 1.1, and guide bars 7.1 are provided on the protective cover 7 to cooperate with the fixing base 1.1. The provision of the guide bars and guide grooves ensures that the protective cover 7 slides stably and reliably on the sliding cover mounting base 1.1. Those skilled in the art will appreciate that the guide bars 7.1 can alternatively be provided on the fixing base 1.1, and the guide grooves 1.1.2 on the protective cover 7, as long as the protective cover 7 can slide stably relative to the fixing base 1.1.
[0100] In order to enable the protective cover 7 to automatically return to the closed state, the ventilator of the present invention is also provided with an elastic limit assembly that automatically responds to the insertion of the ventilation tube 8 into the air outlet assembly 6. The elastic limit assembly mainly includes a second elastic member 6.7, a limit bracket 9 and a first inclined wedge block 6.8;
[0101] As shown in Figures 10 to 17, the limit bracket 9 includes two parallel rods 9.1 and a second oblique wedge 9.2, and the second oblique wedge 9.2 is connected between the two rods 9.1; a guide hole 6.4 is provided on the connecting tube 6.2, and the rod 9.1 of the limit bracket 9 passes through the guide hole 6.4, so that the limit bracket 9 is reliably slidably connected to the air outlet assembly 6; the limit bracket 9 is provided with a third guide column 9.3, and the connecting tube 6.2 is provided with a fourth guide column 6.6, and the two ends of the second elastic member 6.7 (coil spring) are respectively mounted on the third guide column 9.3 and the fourth guide column 6.6, and the second elastic member 6.7 is used to apply an elastic force to make the limit bracket 9 move toward the protective cover 7; the elastic force direction of the first elastic member 7.4 and the elastic force direction of the second elastic member 6.7 are perpendicular to each other. The connecting tube 6.2 is provided with a through mounting hole 6.5 (a form of channel), and a first oblique wedge block 6.8 cooperating with the second oblique wedge block 9.2 is provided through the mounting hole 6.5 (normally, a biasing spring (not shown) is required to ensure that the first oblique wedge block 6.8 does not fall off from the mounting hole 6.5); when the protective cover 7 is in the open state, the air outlet assembly 6 is in an exposed state, and the protective cover 7 is locked (limited) by abutting against the limiting bracket 9 under the action of the first elastic member 7.4; in response to the vent pipe 8 being inserted into the gap 6.9 between the connecting tube 6.2 and the central connecting pipe 6.3, the first oblique wedge block 6.8 is able to slide in the mounting hole 6.5. With the inclined wedge arrangement, when the vent tube 8 is inserted into the gap 6.9, the vent tube 8 squeezes the first inclined wedge 6.8, causing it to move horizontally. This movement of the first inclined wedge 6.8 causes the limit bracket 9 to move downward. This movement of the limit bracket 9 unlocks the protective cover 7, allowing the protective cover 7 to abut against the vent tube 8 under the action of the first elastic member 7.4. When the vent tube 8 is removed, the protective cover 7 automatically returns to the closed position under the action of the first elastic member 7.4. To ensure that the first inclined wedge 6.8 moves under the action of the vent tube 8, the portion of the first inclined wedge 6.8 located within the gap 6.9 is typically rounded or has an inclined surface, so that it can move in response to the insertion of the vent tube 8.
[0102] In one embodiment, the limiting bracket 9 does not necessarily include two rods 9.1 parallel to each other, but may also include only one rod 9.1, as shown in FIG16 .
[0103] Preferably, as shown in FIG14 , an avoidance groove 7.5 is provided on the inner surface of the protective cover 7 corresponding to the limit bracket 9. The provision of the avoidance groove 7.5 can minimize the mutual interference between the protective cover 7 and the limit bracket 9 during the sliding process. The avoidance groove 7.5 is not a through groove. As shown in FIG14 , the avoidance groove 7.5 does not extend from left to right to the edge of the protective cover 7. Accordingly, the end of the limit bracket 9 close to the protective cover 7 has an inclined surface 9.4. When the protective cover 7 is in the process of opening and sliding, the limit bracket 9 is located in the avoidance groove 7.5. The inclined surface 9.4 of the limit bracket 9 helps the limit bracket 9 to disengage from the avoidance groove 7.5 and finally abut against the right edge of the protective cover 7 to lock the protective cover 7 (as shown in FIG8 ).
[0104] In the above embodiment, as shown in Figure 8 , the position-limiting bracket 9 abuts the right edge of the protective cover 7 to lock the protective cover 7 in its open state. In another embodiment, as shown in Figure 18 , the inner surface of the protective cover 7 is further provided with a positioning groove 7.6. When the protective cover 7 is in the open state, the position-limiting bracket 9 abuts the sidewall of the positioning groove 7.6. The provision of the positioning groove 7.6 eliminates the need for the position-limiting bracket 9 to abut the edge of the protective cover 7, allowing for greater flexibility in setting the position of the position-limiting bracket 9.
[0105] The working principle of the sliding protective cover of the ventilator of the present invention is as follows: when the ventilator is not working, the protective cover 7 covers the air outlet assembly 6 under the action of the first elastic member 7.4, as shown in Figures 3 and 5. In this state, the protective cover 7 protects the air outlet and internal pipelines of the ventilator to prevent them from being contaminated by external pollutants.
[0106] The user pushes the anti-slip groove 7.3 on the protective cover 7 backward to slide the cover 7 backward, exposing the ventilator's air outlet assembly 6. After the protective cover 7 slides behind the limit bracket 9, it is stopped by the upper end of the limit bracket 9. After releasing the anti-slip groove 7.3, the protective cover 7 will not rebound, as shown in Figure 8. At this point, the protective cover 7 is in the open state, and the opening 1.1.1 is not blocked, exposing the air outlet assembly 6.
[0107] The user inserts the vent tube 8. During the insertion process, the front end of the vent tube 8 will push the first oblique wedge block 6.8 outward, and the first oblique wedge block 6.8 will move backward. Since the second oblique wedge block 9.2 cooperates with the first oblique wedge block 6.8, the first oblique wedge block 6.8 drives the second oblique wedge block 9.2 to move downward, so that the limit of the protective cover 7 is disengaged. The limit bracket 9 is located below the protective cover 7. The protective cover 7 will slide forward under the action of the first elastic member 7.4 to press against the vent tube 8, as shown in Figures 9 and 10.
[0108] When the user stops using the ventilator and removes the ventilator tube 8, the protective cover 7 continues to slide forward under the action of the first elastic member 7.4 until it completely covers the opening 1.1.1, thereby protecting the ventilator air outlet assembly 6. At this time, the protective cover 7 is in the closed state, and the opening 1.1.1 is blocked by the protective cover 7, leaving the air outlet assembly 6 in a non-exposed state.
[0109] In another embodiment, as shown in FIG19 , a trigger 9.5 is provided on the limit bracket 9 of the elastic limit assembly; a strip-shaped through-slot 6.10 (another form of channel) is provided on the connecting tube 6.2, and the trigger 9.5 passes through the strip-shaped through-slot 6.10, and the end of the trigger 9.5 is located in the gap 6.9 between the connecting tube 6.2 and the central connecting tube 6.3. The trigger 9.5 is preferably a rod-shaped member. When the vent tube 8 is inserted into the gap 6.9, the vent tube 8 pushes the trigger 9.5 to move downward in the strip-shaped through-slot. The movement of the trigger 9.5 naturally drives the limit bracket 9 to move. The movement of the limit bracket 9 can release the lock on the protective cover 7, so that the protective cover 7 abuts against the vent tube 8 under the action of the first elastic member 7.4, thereby achieving the purpose of the limit bracket 9 releasing the lock on the protective cover 7 in response to the vent tube 8 being inserted into the air outlet assembly 6. Of course, those skilled in the art will appreciate that other possible approaches may be used to achieve the technical effect of releasing the lock on the protective cover 7 by the limiting bracket 9 in response to the action of the vent pipe 8 being inserted into the air outlet assembly 6 .
[0110] Example 2
[0111] Referring to Figures 20-37 , a ventilator includes a main body and a ventilator tube 8. The main body comprises an upper cover 1 and a lower cover 2 (the upper cover 1 and the lower cover 2 form a housing). A fan assembly 3 (an example of a fan), a control panel 4, a water tank 5, and a ventilator fixing assembly 6-1 are mounted within the space formed by the upper and lower covers. When the ventilator is in use, the ventilator tube 8 is plugged into the outlet assembly 6 of the ventilator fixing assembly 6-1. When the ventilator is no longer in use, the ventilator tube 8 is removed from the outlet assembly 6. The fan assembly 3 includes a fan inlet 3.1, a fan body 3.2, and a fan outlet 3.3. The water tank 5 includes a water tank inlet 5.1 and a water tank outlet 5.2. Air from the external environment enters the fan body 3.2 through the fan inlet 3.1 and is pressurized. The pressurized air then flows through the fan outlet 3.3 into the water tank inlet 5.1 and then into the water tank outlet 5.2 to adjust the humidity. Finally, the air enters the ventilation tube 8 through the outlet assembly 6. The outlet assembly 6 serves as the air outlet of the ventilator.
[0112] Referring to Figures 20-26, the vent pipe fixing assembly 6-1 is located inside the upper cover 1 (i.e., below the upper cover 1). The vent pipe fixing assembly 6-1 includes a plate component 6.13 and an air outlet assembly 6, wherein the air outlet assembly 6 includes a connecting tube 6.2 and a central connecting tube 6.3. The plate component 6.13 is fixedly connected to the outer periphery of the connecting tube 6.2 near one end of the upper cover 1, and the plane where the plate component 6.13 is located is perpendicular to the axial direction of the connecting tube 6.2. The plate component 6.13 is roughly parallel to the upper cover 1 portion at the corresponding position; the central connecting tube 6.3 Located in the connecting tube 6.2, the central connecting tube 6.3 is coaxially arranged with the connecting tube 6.2, and there is a gap between the connecting tube 6.2 and the central connecting tube 6.3 to accommodate the ventilating tube 8; and the end of the connecting tube 6.2 away from the plate component 6.13 is connected to the outer periphery of the central connecting tube 6.3, and the end of the central connecting tube 6.3 close to the upper cover 1 does not protrude from (is not higher than) the plate component 6.13; a limiter 6.14 is provided on the surface of the plate component 6.13; and the limiter 6.14 is located on the side of the plate component 6.13 away from the connecting tube 6.2. The lower end of the air outlet assembly 6 is connected to the water tank air outlet 5.2. As the air outlet of the ventilator, the function of the ventilating tube fixing assembly 6-1 is to provide a reliable installation interface for the ventilating tube 8. The air outlet assembly 6 needs to have a certain rigidity and is preferably made of one-piece molding; of course, those skilled in the art can understand that the air outlet assembly 6 (including the connecting tube 6.2 and the central connecting tube 6.3) and the plate component 6.13 can be manufactured separately and then assembled. When the user inserts the vent tube 8 between the connecting tube 6.2 and the central connecting tube 6., the plate component 6.13 will be subjected to an external force perpendicular to the plate surface, and the plate component 6.13 will be elastically deformed and concave. Correspondingly, the limiter 6.14 will be displaced along with the elastic deformation of the plate component 6.13, thereby releasing the position limit of the sliding protective cover 7, which is conducive to the automatic closing of the protective cover 7 (described in detail below). Among them, the plate component 6.13 is fixedly connected to the outer periphery of the connecting tube 6.2 near one end of the upper cover 1, which does not necessarily mean that the plate component 6.13 is arranged around the entire connecting tube 6.2. In some optional schemes, the plate component 6.13 can extend outward from part of the outer periphery of the connecting tube 6.2. It should be noted that the plate component 6.13 is an example of a bearing member, and those skilled in the art can use other forms of bearing members as long as they can be applied to elastic deformation when pressed. It should be noted that: in the above embodiment, the limiting member 6.14 is a protruding limiting member. Those skilled in the art will appreciate that the limiting member 6.14 may also be a limiting groove that cooperates with a corresponding limiting protrusion on the protective cover 7.
[0113] In order to simplify the installation of the vent pipe fixing assembly 6-1, a hook 1.2 and a screw column 1.3 are provided on the upper cover 1. One end of the plate component 6.13 is engaged with the hook 1.2, and the other end of the plate component 6.13 is fixed to the screw column 1.3 of the upper cover 1 by a screw 11 (an example of a fastener), that is, one end of the connecting tube 6.2 is connected to the upper cover 1 through the plate component 6.13. With this fixing method, the vent pipe fixing assembly 6-1 can be quickly fixed to the upper cover 1, and the vent pipe fixing assembly 6-1 can be accurately positioned on the upper cover 1. The end of the plate component 6.13 that is engaged with the hook 1.2 is equivalent to a free end. When the plate component 6.13 is subjected to pressure perpendicular to the plane of the plate component 6.13, the end of the plate component 6.13 that is engaged with the hook 1.2 can be slightly displaced, which makes the plate component 6.13 more prone to elastic deformation.
[0114] Those skilled in the art may know that there are many possible ways of connecting the air outlet assembly 6 and the vent pipe 8, such as the vent pipe 8 is tightly fitted with the inner wall of the connecting tube 6.2 (in this case, the central connecting tube 6.3 may be a hollow structure to reduce weight), or the vent pipe 8 is tightly fitted with the outer wall of the central connecting tube 6. (in this case, the connecting tube 6.2 may be a hollow structure to reduce weight), or the vent pipe 8 is tightly fitted with the outer wall of the central connecting tube 6.3 and the inner wall of the connecting tube 6.2 at the same time, thereby transmitting the gas from the air outlet assembly 6 to the vent pipe 8 without leakage.
[0115] The air outlet assembly 6 can have various forms, such as eliminating the central connecting pipe 6.3, as shown in Figures 34 and 35. At this time, when the vent pipe 8 is connected to the air outlet assembly 6, the vent pipe 8 is tightly fitted with the inner wall of the connecting tube 6.2.
[0116] Referring to Figures 20-24 , the upper cover 1 is provided with an opening 1.1.1, and the connecting tube 6.2 and central connecting pipe 6.3 of the air outlet assembly 6 are arranged corresponding to the opening 1.1.1. A protective cover 7 is slidably disposed between the upper cover 1 and the plate member 6.13. The protective cover 7 can be switched between a first position (closed) and a second position (open). When the protective cover 7 is closed, the opening 1.1.1 is sealed (obstructed). When the protective cover 7 is open, the air outlet assembly 6 is exposed, and the vent pipe 8 can pass through the opening 1.1.1 and connect to the air outlet assembly 6. The outer surface of the protective cover 7 is also provided with a toggle protrusion 7.7. The toggle protrusion 7.7 facilitates the user's operation of the protective cover 7, thereby sliding the protective cover 7 open.
[0117] The protective cover 7 is located between the plate component 6.13 and the upper cover 1. The space between the plate component 6.13 and the upper cover 1 forms a storage space for the protective cover 7, limiting the sliding range of the protective cover 7. Preferably, positioning protrusions 6.12 are provided at both ends of the plate component 6.13. The positioning protrusions 6.12 extend from the plate component 6.13 toward the upper cover 1. That is, the positioning protrusions 6.12 and the limiter 6.14 are located on the same side surface of the plate component 6.13. When the vent pipe fixing assembly 6-1 is fixed to the upper cover 1, the extension height of the positioning protrusions 6.12 toward the upper cover 1 is greater than the thickness of the protective cover 7, thereby ensuring that the protective cover 7 can slide in the gap between the upper cover 1 and the plate component 6.13. In order to facilitate the protective cover 7 to automatically return to the closed state, one end of the first elastic member 7.4 (which can be a tension spring) is connected to the protective cover 7, and the other end is connected to the upper cover 1; specifically, there is an upper cover fixing column 1.5 on one side of the upper cover 1, and the upper cover fixing column 1.5 is provided with a groove (not shown), and one end of the first elastic member 7.4 is installed at the corresponding position of the groove; there are protective cover fixing columns 7.8 on both sides of the protective cover 7, and the protective cover fixing columns 7.8 are provided with a groove (not shown), and the other end of the first elastic member 7.4 is installed at the corresponding position of the groove. It can be understood by those skilled in the art that the other end of the first elastic member 7.4 can also be connected to the plate component 6.13 of the ventilation tube fixing assembly 6-1; in some cases, the first elastic member 7.4 can also be replaced by a compression spring. The first elastic member 7.4 can apply elastic force to the protective cover 7 to restore it to the closed state. When the ventilator is not in use, the elastic member can ensure that the protective cover 7 is always in the closed state, that is, the protective cover 7 closes the opening 1.1.1 of the upper cover 1.
[0118] A guiding component is provided on the plate component 6.13 and / or the upper cover 1, and the guiding component is used to guide the sliding of the protective cover 7. By providing the guiding component, it can be ensured that the protective cover 7 slides in a predetermined direction, and the protective cover 7 is prevented from shaking, falling off, etc. Specifically, the guiding component includes a guiding bar 1.4 provided on the upper cover 1; of course, those skilled in the art will understand that: the guiding bar 1.4 provided on the plate component 6.13 can also play the same role. In order to further improve the stability of the sliding guide, a guiding protrusion 7.9 is provided on the protective cover 7, and a corresponding guiding groove 6.11 is provided on the plate component 6.13; the guiding groove 6.11 not only plays the role of guiding the sliding of the protective cover 7, but also is more conducive to increasing the elasticity of the plate component 6.13, so that the plate component 6.13 is more prone to deformation along the axial direction of the connecting tube 6.2.
[0119] Preferably, as shown in Figures 28 and 29, the inner surface of the protective cover 7 is provided with an escape groove 7.5 corresponding to the stopper 6.14. The provision of the escape groove 7.5 can minimize the mutual interference between the protective cover 7 and the stopper 6.14 during the sliding process. The escape groove 7.5 is not a through-slot configuration. As shown in Figure 29, the escape groove 7.5 does not extend from left to right to the edge of the protective cover 7. Accordingly, the side of the stopper 6.14 near the connecting tube 6.2 has an inclined surface 6.14.1. When the protective cover 7 is opened and slid, the stopper 6.14 is located in the escape groove 7.5. When the stopper 6.14 is located in the escape groove 7.5, the inclined surface 6.14.1 helps the stopper 6.14 to disengage from the escape groove 7.5 and eventually abut against the right edge of the protective cover 7 to achieve the positioning of the protective cover 7 (as shown in Figures 27 and 36). Of course, the end sidewalls of the escape groove 7.5 can also be provided with corresponding inclined surfaces (as shown in Figure 36). As shown in FIG. 25 and FIG. 29 , two position limiting members 6.14 are provided, and two avoidance grooves 7.5 are also provided in parallel, which is conducive to improving stability.
[0120] In the above embodiment, the stopper 6.14 abuts the right edge of the protective cover 7 to position the protective cover 7 in the open state. In another embodiment, as shown in Figure 30, the inner surface of the protective cover is further provided with a positioning groove 7.6. When the protective cover 7 is in the open state, the stopper 6.14 abuts the side wall of the positioning groove 7.6. The provision of the positioning groove 7.6 eliminates the need for the stopper 6.14 to abut the edge of the protective cover 7. This allows for more flexible positioning of the stopper 6.14, and is particularly advantageous for positioning the stopper 6.14 in a location where deformation of the plate member 6.13 is greater, such as near the midpoint between the end of the plate member 6.13 and the connecting tube 6.2.
[0121] The working principle of the sliding protective cover of the ventilator of the present invention is as follows: when the ventilator is not working, the protective cover 7 closes the air outlet opening 1.1.1 of the ventilator under the action of the first elastic member 7.4, as shown in Figure 21. In this state, the protective cover 7 protects the air outlet and other pipelines of the ventilator such as the internal water tank, and prevents them from being contaminated by external dust and bacteria. When the ventilator is working, the user pushes the toggle protrusion 7.7 backward to slide the protective cover 7 to open (expose) the opening 1.1.1 of the ventilator. The protective cover 7 slides to the left side of the limit member 6.14 (or the limit member 6.14 is located in the positioning groove 7.6 of the protective cover 7). The protective cover 7 abuts against the limit member 6.14 under the action of the first elastic member 7.4 and is limited, and cannot rebound, as shown in Figure 36. At this time, the protective cover 7 is in the second position (open state).
[0122] When the user inserts the vent tube 8, due to the tight fit between the vent tube 8 and the air outlet assembly 6, the plate member 6.13 is subjected to pressure perpendicular to the plate member 6.13, pointing toward the interior of the ventilator. Under this pressure, the plate member 6.13 elastically deforms inward, causing the stopper 6.14 to move downward, disengaging the stopper 6.14 from the protective cover 7. The stopper 6.14 releases the stopper on the protective cover 7, and the protective cover 7 slides forward under the action of the first elastic member 7.4 to support the vent tube 8, as shown in Figure 37. In other words, in response to the insertion of the vent tube 8 into the air outlet assembly 6, the protective cover 7 abuts the vent tube 8.
[0123] When the user stops using the ventilator and pulls out the ventilation tube 8, the protective cover 7 will continue to automatically slide under the action of the first elastic member 7.4 to close the ventilator outlet opening 1.1.1. At this time, the protective cover 7 is in the first position (closed state).
[0124] When the user stops using the ventilator and removes the vent tube 8, the protective cover 7 automatically slides forward under the action of the first elastic member 7.4 to close the opening 1.1.1. This automatically resetting protective cover 7 helps prevent users from forgetting to replace the cover after using the ventilator due to habitual handling, thus improving the protective effect. Furthermore, the protective cover 7 automatically repositions itself without requiring the user to touch the cover again, further reducing the risk of contamination of the ventilator's air outlet.
[0125] Example 3
[0126] Referring to Figures 20-24, 28, 31-33, and 38-39, Example 3 differs from Example 2 in that: Example 3 eliminates the stopper 6.14, avoidance groove 7.5, and positioning groove 7.6 components found in Example 2. Components common to Example 2 have the same functions and effects and are not further described here. Compared to Example 2, the protective cover 7 in Example 3 does not abut against the vent tube 8 in response to the insertion of the vent tube 8 into the air outlet assembly 6. Using the technical solution of Example 3, when the ventilator is operating, the user pushes the toggle protrusion 7.7 backward to slide the protective cover 7 to open (expose) the ventilator's opening 1.1.1. The user holds the protective cover 7 with one hand to prevent it from rebounding while installing the vent tube 8 with the other hand. After the vent tube 8 is installed, the protective cover 7 is released. Under the action of the first elastic member 7.4, the protective cover 7 rebounds against the vent tube 8, resulting in the operating state shown in Figure 24. When the user stops using the ventilator and removes the vent tube 8, the protective cover 7 automatically slides forward under the action of the first elastic member 7.4 to close the opening 1.1.1. This automatically resetting protective cover 7 helps prevent users from forgetting to replace the cover after using the ventilator due to habitual handling, thus improving the protective effect. Furthermore, the protective cover 7 automatically repositions itself without requiring the user to touch the cover again, further reducing the risk of contamination of the ventilator's air outlet.
[0127] Modification of Example 3
[0128] Referring to Figures 40-42, based on Example 3, this modification further includes a stopper 6.15. The protective cover 7 is provided with a guide protrusion 7.9, and the plate member 6.5 is provided with a corresponding guide groove 6.3. The plate member 6.5 is also provided with a stopper 6.15 for use with the guide protrusion 7.9. The stopper 6.15 is located at the end of the guide groove 6.11 away from the connecting tube 6.2. When the protective cover 7 slides from the closed position to the open position, the guide protrusion 7.9 slides within the guide groove 6.11 until the guide protrusion 7.9 engages the stopper 6.15. The stopper 6.15 then stops the protective cover 7 in its position, preventing it from automatically rebounding. It will be understood by those skilled in the art that the engagement force between the guide protrusion 7.9 and the limit buckle 6.15 can prevent the protective cover 7 from rebounding. However, when the user applies external force to the protective cover 7, the guide protrusion 7.9 can be disengaged from the limit buckle 6.15, and the protective cover 7 will then automatically slide to a position that closes the opening 1.1.1 of the upper cover 1 under the action of the elastic member.
[0129] Example 4
[0130] Referring to Figures 7 and 43-54, the difference between Example 4 and Example 1 is that Example 4 eliminates the elastic limiting assembly (the second elastic member 6.7, the limiting bracket 9 and the first oblique wedge 6.8) and other components in Example 1. The same components as those in Example 1 have the same functions and effects and will not be repeated here. Compared with Example 1, the protective cover 7 in the solution of Example 4 will not abut against the ventilator 8 in response to the plugging action of the ventilator 8 connected to the air outlet assembly 6. Using the technical solution of Example 3, when the ventilator is working, the user pushes the anti-slip groove 7.3 backward to slide the protective cover 7 to open (expose) the opening 1.1.1 of the ventilator. The user presses the protective cover 7 with one hand to prevent it from rebounding, and installs the ventilator 8 with the other hand. After the ventilator 8 is installed, the protective cover 7 is released. The protective cover 7 will rebound and support the ventilator 8 under the action of the first elastic member 7.4. The working state is shown in Figure 47. When the user stops using the ventilator and removes the vent tube 8, the protective cover 7 automatically slides forward under the action of the first elastic member 7.4 to close the opening 1.1.1, as shown in Figure 45. This automatically resetting protective cover 7 helps prevent users from forgetting to replace the cover after using the ventilator due to habitual handling, thereby improving the protective effect. Furthermore, the protective cover 7 automatically repositions itself without requiring the user to touch it again, further reducing the risk of contamination of the ventilator's air outlet.
[0131] Modification of Example 4
[0132] Referring to Figures 51-54, based on Example 4, this modification further includes a locking protrusion 1.1.4 and a locking groove 7.10. The locking protrusion 1.1.4 is provided on the fixing base 1.1, and the locking groove 7.10 is provided on the protective cover 7 to cooperate with the locking protrusion 1.1.4. When the protective cover 7 slides from the closed position to the open position, the protective cover 7 slides on the fixing base 1.1 until the locking protrusion 1.1.4 engages with the locking groove 7.10. The locking groove 7.10 limits the position of the protective cover 7, preventing it from automatically rebounding. Those skilled in the art will understand that the engagement force between the locking positioning protrusion 1.1.4 and the locking positioning groove 7.10 can prevent the protective cover 7 from rebounding, but if the user applies external force to the protective cover 7, the locking positioning protrusion 1.1.4 can be disengaged from the locking positioning groove 7.10, and the protective cover 7 will then automatically slide to a position that blocks the opening 1.1.1 of the upper cover 1 under the action of the elastic member. It should be noted that the locking positioning protrusions 1.1.4 shown in Figures 51-54 are located on both sides of the fixing base 1.1, but the locking positioning protrusions 1.1.4 can also be located in other locations, such as on the upper surface of the fixing base 1.1, and the corresponding locking positioning groove 7.10 can be located on the lower surface of the protective cover 7.
[0133] The embodiments of the present invention are described above in conjunction with the accompanying drawings. The embodiments of the present invention and the features thereof may be combined with each other unless there is any conflict. The present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Under the guidance of the present invention, those skilled in the art may devise various forms without departing from the spirit of the present invention and the scope of protection of the claims. All of these forms fall within the scope of protection of the present invention.
Claims
1. A ventilator air outlet sliding protection device, comprising a ventilator body, a ventilator pipe (8) and a protective cover (7), wherein the ventilator body comprises a housing, a fan assembly (3) and an air outlet assembly (6), wherein the fan assembly (3) is provided with a fan air inlet (3.1) and a fan air outlet (3.3), the air outlet assembly (6) is communicated with the fan air outlet (3.3) and the air outlet assembly (6) is used to connect the ventilator pipe (8), characterized in that: The air outlet assembly (6) is located in the shell, and the shell is provided with an opening (1.1.1) corresponding to the air outlet assembly (6); the protective cover (7) is slidably arranged relative to the shell, and the protective cover (7) can be opened and closed. When the protective cover (7) is in a closed state, the protective cover (7) covers the air outlet assembly (6), and when the protective cover (7) is in an open state, the air outlet assembly (6) is in an exposed state.
2. A ventilator air outlet sliding protection device according to claim 1, characterized in that: The air outlet assembly (6) comprises a connecting tube (6.2) and a central connecting tube (6.3); one end of the connecting tube (6.2) is connected to the shell, and the other end is connected to the outer periphery of the central connecting tube (6.3); a gap is provided between the connecting tube (6.2) and the central connecting tube (6.3); and one end of the central connecting tube (6.3) close to the shell does not protrude from the shell.
3. A ventilator air outlet sliding protection device according to claim 1 or 2, characterized in that: In response to the plugging action of the vent pipe (8) being connected to the air outlet assembly (6), the protective cover (7) abuts against the vent pipe (8).
4. A ventilator air outlet sliding protection device according to claim 3, characterized in that: It also comprises a first elastic member (7.4) and an elastic limiting assembly, and when the protective cover (7) is opened, the elastic limiting assembly moves upward to lock the protective cover (7); When the vent pipe (8) is plugged into the air outlet assembly (6), the elastic limiting assembly is triggered to move downward to release the lock on the protective cover (7); when the vent pipe (8) is removed from the air outlet assembly (6), the protective cover (7) is closed under the action of the first elastic member (7.4).
5. A ventilator air outlet sliding protection device according to claim 4, characterized in that: A fixing seat (1.1) is arranged on the shell, and a protective cover (7) is slidably arranged on the fixing seat (1.1); one end of the first elastic member (7.4) is connected to the protective cover (7), and the other end is connected to the shell or the fixing seat (1.1).
6. A ventilator air outlet sliding protection device according to claim 4, characterized in that: The elastic limiting assembly comprises a second elastic member (6.7) and a limiting bracket (9), wherein the second elastic member (6.7) is used to apply an elastic force causing the limiting bracket (9) to move toward the protective cover (7).
7. A ventilator air outlet sliding protection device according to claim 6, characterized in that: The limiting bracket (9) is slidably arranged on the air outlet assembly (6); one end of the second elastic member (6.7) is connected to the limiting bracket (9) and the other end is connected to the air outlet assembly (6); the elastic force direction of the second elastic member (6.7) is perpendicular to the elastic force direction of the first elastic member (7.4).
8. A ventilator air outlet sliding protection device according to claim 7, characterized in that: The connecting tube (6.2) is provided with a guide hole (6.4), and the limiting bracket (9) passes through the guide hole (6.4).
9. A ventilator air outlet sliding protection device according to claim 7 or 8, characterized in that: A channel is provided on the wall of the connecting tube (6.2), a movable actuating member (9.5) is arranged through the channel, and an end of the actuating member (9.5) is located in the gap between the connecting tube (6.2) and the central connecting tube (6.3).
10. A ventilator air outlet sliding protection device according to claim 9, characterized in that: The triggering member is a first inclined wedge block (6.8), and the limiting bracket (9) is provided with a second inclined wedge block (9.2) matched with the first inclined wedge block (6.8). When the ventilation pipe (8) is inserted into the gap between the connecting tube (6.2) and the central connecting pipe (6.3), the ventilation pipe (8) triggers the first inclined wedge block (6.8) to slide in the horizontal direction in the channel, so as to drive the second inclined wedge block (9.2) to drive the limiting bracket (9) to move downward.
11. A ventilator air outlet sliding protection device according to claim 10, characterized in that: The limiting bracket (9) comprises two rods (9.1) parallel to each other, and the second inclined wedge block (9.2) is connected between the two rods (9.1).
12. A ventilator air outlet sliding protection device according to claim 9, characterized in that: The passage is a vertical strip-shaped through groove (6.10), and the trigger is a cross bar (9.5) arranged on the limiting bracket (9) and capable of moving up and down along the strip-shaped through groove (6.10). When the vent pipe (8) is inserted into the gap between the connecting tube (6.2) and the central connecting tube (6.3), the cross bar (9.5) is pressed downward, and the cross bar (9.5) drives the limiting bracket (9) to move downward.
13. A ventilator air outlet sliding protection device according to claim 6, characterized in that: An avoidance groove (7.5) is provided on the inner surface of the protective cover (7) corresponding to the limiting bracket (9).
14. A ventilator air outlet sliding protection device according to claim 6, characterized in that: The inner surface of the protective cover (7) is also provided with a positioning groove (7.6); when the protective cover (7) is in an open state, the limiting bracket (9) abuts against the side wall of the positioning groove (7.6).
15. A ventilator air outlet sliding protection device according to claim 3, characterized in that: The ventilator body also includes a first elastic member (7.4) and a plate member (6.13) located in the shell, and the air outlet assembly (6) is connected to the plate member (6.13); a protective cover (7) is slidably arranged between the shell and the plate member (6.13); a limiting member (6.14) is arranged on the plate member (6.13), and the protective cover (7) can be limited by the limiting member (6.14) when it is opened; When the vent pipe (8) is connected to the air outlet assembly (6), the plate component (6.13) is pressed down, and the plate component (6.13) The elastic deformation occurs so that the limiting member (6.14) releases the limiting function on the protective cover (7); When the vent pipe (8) is separated from the air outlet assembly (6), the protective cover (7) is closed under the action of the first elastic member to cover the air outlet assembly (6).
16. A ventilator air outlet sliding protection device according to claim 15, characterized in that: One end of the first elastic member is connected to the protective cover (7), and the other end is connected to the shell or the plate component (6.13).
17. A ventilator air outlet sliding protection device according to claim 15, characterized in that: The plate component (6.13) is fixedly connected to the outer periphery of the connecting tube (6.2) close to one end of the shell, and the plane where the plate component (6.13) is located is perpendicular to the axial direction of the connecting tube (6.2); the limiting component (6.14) is arranged on the surface of the plate component (6.13), and the limiting component (6.14) is located on the side of the plate component (6.13) facing away from the connecting tube (6.2).
18. A ventilator air outlet sliding protection device according to claim 16 or 17, characterized in that: The limiting member (6.14) has an inclined surface (6.14.1) on one side close to the connecting tube (6.2).
19. A ventilator air outlet sliding protection device according to claim 15, characterized in that: The shell is provided with a hook (1.2), one end of the plate component (6.13) is hooked into the hook (1.2), and the other end of the plate component (6.13) is fixed to the shell via a fastener.
20. A ventilator air outlet sliding protection device according to claim 1 or 2, characterized in that: The ventilator body also includes a first elastic member (7.4) and a plate member (6.13) located in the shell; the protective cover (7) is slidably arranged between the shell and the plate member (6.13); one end of the first elastic member (7.4) is connected to the protective cover (7), and the other end is connected to the shell or the plate member (6.13); the first elastic member (7.4) is used to apply an elastic force to the protective cover (7) to switch from an open state to a closed state.
21. A ventilator air outlet sliding protection device according to claim 20, characterized in that: The plate component (6.13) is fixedly connected to the outer periphery of the connecting tube (6.2) close to one end of the shell, and the plane where the plate component (6.13) is located is perpendicular to the axial direction of the connecting tube (6.2); positioning protrusions (6.12) are provided at both ends of the plate component (6.13), and the positioning protrusions (6.12) extend from the plate component (6.13) toward the shell.
22. A ventilator air outlet sliding protection device according to claim 20, characterized in that: The shell is provided with a hook (1.2), one end of the plate component (6.13) is hooked into the hook (1.2), and the other end of the plate component (6.13) is fixed to the shell via a fastener.
23. A ventilator air outlet sliding protection device according to claim 20, characterized in that: The protective cover (7) is provided with a guide protrusion (7.9), and the plate component (6.13) is provided with a corresponding guide groove (6.11); the plate component (6.13) is also provided with a limit buckle (6.15) used in conjunction with the guide protrusion (7.9), and the limit buckle (6.15) is located at an end of the guide groove (6.11) away from the connecting tube (6.2).
24. A ventilator air outlet sliding protection device according to claim 1 or 2, characterized in that: The shell is provided with a fixing seat (1.1), and the protection cover (7) is slidably provided on the fixing seat (1.1); and further comprises a first elastic member (7.4), one end of the first elastic member (7.4) is connected to the protection cover (7), and the other end is connected to the shell or the fixing seat (1.1).
25. A ventilator air outlet sliding protection device according to claim 24, characterized in that: The fixing seat (1.1) is provided with a guide strip (7.1) and / or a guide groove (1.1.2), and the protection cover (7) is provided with a guide groove (1.1.2) and / or a guide strip (7.1) that matches the fixing seat (1.1).
26. A ventilator air outlet sliding protection device according to claim 24, characterized in that: The fixing seat (1.1) is provided with a locking positioning protrusion (1.1.4), and the protection cover (7) is provided with a locking positioning groove (7.10) that matches the locking positioning protrusion (1.1.4).