Sliding protection device for air outlet of breathing machine

Abstract

The invention discloses a sliding protection device for an air outlet of a breathing machine. The breathing machine comprises a shell, a first elastic piece, a second elastic piece, a limiting support and an air outlet assembly located in the shell. A protective cover is slidably arranged on the fixed seat; the fixing seat is provided with an opening corresponding to the air outlet assembly; one end of the second elastic piece is connected to the limiting support, and the other end of the second elastic piece is connected to the air outlet assembly; when the protective cover is in a closed state, the protective cover shields the opening; when the protective cover is in an open state, the air outlet assembly is in an exposed state, and the protective cover abuts against the limiting support under the action of the first elastic piece to be positioned. The limiting support releases positioning of the protective cover in response to the breather pipe being inserted into the air outlet assembly. The device is easy to use and convenient to operate, the air outlet of the breathing machine can be effectively protected, and the air outlet of the breathing machine, an internal water tank and other pipelines are prevented from being polluted by external dust, bacteria and the like.

Description

Technical Field

[0001] The invention relates to a sliding protective device for an air outlet of a respirator, belonging to the technical field of application of household respirators. Background Art

[0002] As a device to assist breathing, ventilators have been increasingly used by families in need. Figure 1 As shown, the turbine blower assembly 3 in the ventilator sucks outside air into the ventilator for pressurization, and the pressurized air passes through the ventilator water tank 5 and then blows out through the ventilator outlet. When the user uses it, a ventilator tube 8 is installed on the ventilator outlet, and the ventilator tube is connected to a mask 10, through which the user can breathe the pressurized air output from the ventilator to assist the user in breathing.

[0003] The air outlet (exhaust pipe) of the existing ventilator protrudes from the housing of the ventilator, such as the ventilator disclosed in the design patent with 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 very easy to be contaminated by dust, bacteria or other foreign matter in the environment, such as pet hair. When the user uses a ventilator with a contaminated air outlet, the pollutants will be transported to the mask by pressurized air and enter the user's respiratory tract, causing discomfort to the user, and even causing respiratory tract or lung infection.

[0004] The utility model patent with authorization announcement number CN207445309U discloses a protective device for the air outlet of a non-invasive ventilator, but the solution is only applicable to a ventilator described in its specification and cannot be applied to other home ventilators. In addition, the device needs to be manually removed and installed during use, which is inconvenient to operate. 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 and a ventilator pipe, the ventilator body comprises a fan and an air outlet assembly, the fan is provided with a fan air inlet and a fan air outlet, the air outlet assembly is communicated with the fan air outlet and the air outlet assembly is used to connect the ventilator pipe, and is characterized in that:

[0007] The air outlet assembly is located in the shell, a fixing seat is provided on the shell, and a protective cover is slidably provided on the fixing seat;

[0008] It also includes a first elastic member and an elastic limiting assembly. When the protective cover is opened, the elastic limiting assembly moves upward to lock the protective cover;

[0009] When the vent pipe is plugged into the air outlet assembly, the elastic limiting assembly is triggered to move downward to release the lock on the protective cover. When the vent pipe is removed from the air outlet assembly, the protective cover is closed under the action of the first elastic member.

[0010] Furthermore, the shell is provided with an opening corresponding to the air outlet assembly; when the protective cover is opened, the opening is not blocked and the air outlet assembly is in an exposed state; when the protective cover is closed, the opening is blocked and the air outlet assembly is in a non-exposed state.

[0011] Furthermore, one end of the elastic member is connected to the protective cover, and the other end is connected to the shell or the fixing seat.

[0012] Further, 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, one end of the second elastic member is connected to the limiting bracket, and the other end is connected to the air outlet assembly.

[0013] The above technical solution breaks the conventional setting mode that the air outlet protrudes from the shell. By setting the air outlet assembly (corresponding to the air outlet in the prior art) inside the shell and cooperating with a sliding protective cover, the air outlet assembly is reliably protected when the ventilator is not in use to prevent foreign matter from entering the air outlet assembly. When the protective cover is in the open state, the vent pipe can pass through the opening to connect with the air outlet assembly. When the user inserts the vent pipe into the vent pipe fixing assembly, the movement of the limit bracket is triggered so that the limit bracket releases the lock on the protective cover. The protective cover abuts against the vent pipe under the action of the first elastic member; after use, the protective cover will automatically return to the closed state under the action of the first elastic member after the vent pipe is removed. Among them, the first elastic member can apply 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 closes the opening of the shell.

[0014] Furthermore, the air outlet assembly includes a connecting tube and a central connecting tube, one end of the connecting tube is connected to the shell, and the other end is connected to the outer periphery of the central connecting tube, and a gap is provided between the connecting tube and the central connecting tube; the end of the central connecting tube close to the shell does not protrude from the shell. When the protective cover is in the open state, the vent pipe passes through the opening of the shell and is inserted into the gap between the connecting tube and the central connecting tube, and the vent pipe is tightly matched with the air outlet assembly to fix the vent pipe.

[0015] Furthermore, a guide hole is provided on the connecting tube, and the limiting bracket passes through the guide hole, so that the limiting bracket can be reliably connected to the air outlet assembly in a sliding manner.

[0016] Furthermore, an opening is provided on the wall of the connecting cylinder, a movable trigger is provided through the opening, and an end of the trigger is located in the gap between the connecting cylinder and the central connecting tube.

[0017] Furthermore, the trigger is a first inclined wedge block, and the limit bracket is provided with a second inclined wedge block that matches the first inclined wedge block; when the vent pipe is inserted into the gap between the connecting tube and the central connecting tube, the first inclined wedge block can slide in the mounting hole. With the setting of the inclined wedge block, when the vent pipe is inserted into the gap, the vent pipe (8) triggers the first inclined wedge block (6.8) to slide in the horizontal direction in the opening, so as to drive the second inclined wedge block (9.2) to drive the limit bracket (9) to move downward. The movement of the limit bracket can release the lock of the protective cover, so that the protective cover abuts against the vent pipe under the action of the first elastic member, and when the vent pipe is removed, the protective cover will automatically return to the closed state under the action of the first elastic member.

[0018] Furthermore, the position-limiting bracket includes two rods parallel to each other, and the second inclined wedge is connected between the two rods. With such an arrangement, the first elastic member can pass between the two rods to avoid interference between the first elastic member and the position-limiting bracket; at the same time, the two rods can better limit (position) the protective cover to prevent the protective cover from being unevenly stressed and causing problems such as deflection and jamming.

[0019] Further, the opening is a vertical strip-shaped through groove (6.10), and the trigger is a cross bar (9.5) arranged on the limit 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 down, and the cross bar (9.5) drives the limit bracket (9) to move downward. The downward movement of the limit bracket can release the lock of the protective cover, so that the protective cover abuts against the vent pipe under the action of the first elastic member.

[0020] Furthermore, the inner surface of the protective cover is provided with an avoidance groove corresponding to the limit bracket. The setting of the avoidance 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 also 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, so that the position of the limiting bracket can be set more freely and flexibly.

[0022] Preferably, the first elastic member is a coil spring, a first guide column is provided on the lower surface of the housing or the fixing seat, a second guide column is provided on the lower surface of the protective cover, and the two ends of the first elastic member are respectively sleeved on the first guide column and the second guide column. Preferably, the second elastic member is a coil spring, a third guide column is provided on the limit bracket, a fourth guide column is provided on the connecting tube, and the two ends of the second elastic member are respectively sleeved on the third guide column and the fourth guide column. Providing the guide column is conducive to the installation of the coil spring and maintains the stability of the coil spring.

[0023] Furthermore, the fixing seat 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 seat. 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 seat.

[0024] Furthermore, the outer surface of the protective cover is also provided with an anti-skid groove, which facilitates the user to operate the protective cover so as to slide the protective cover open.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention is simple to use and easy to operate, and can effectively protect the air outlet of the ventilator, preventing the air outlet and other pipelines such as the internal water tank of the ventilator from being contaminated by external dust and bacteria. The protective cover can automatically reset under the action of the elastic member to protect the air outlet of the ventilator, preventing the user from forgetting to cover the protective cover after using the ventilator due to the original operating habits, thereby affecting the working effect of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a working schematic diagram of an existing ventilator;

[0028] Figure 2 It is a middle cross-sectional schematic diagram of the air outlet sliding protection device of the ventilator of the present invention;

[0029] Figure 3 yes Figure 2 Magnified view of the middle circled area;

[0030] Figure 4 It is a cross-sectional schematic diagram of the rod position of the limit bracket of the ventilator air outlet sliding protection device of the present invention (the protection cover is in a closed state);

[0031] Figure 5 yes Figure 4 Magnified view of the middle circled area;

[0032] Figure 6 It is a schematic diagram of a middle partial cross-section of the air outlet sliding protection device of the ventilator of the present invention (the protection cover is in a closed state);

[0033] Figure 7 It is a partial cross-sectional schematic diagram of the rod position of the limit bracket of the ventilator air outlet sliding protection device of the present invention (the protection cover is in a closed state);

[0034] Figure 8 It is a partial schematic diagram of the protective cover of the present invention in an open state;

[0035] Fig. 9 This is a schematic diagram after the ventilation pipe is connected;

[0036] Fig.10 yes Fig. 9 Magnified view of the middle circled area;

[0037] Fig.11 is a partial top view with the protective cover removed;

[0038] Fig.12 It is a partial bottom view with the protective cover removed;

[0039] Fig.13 is a schematic diagram of the protective cover (top view);

[0040] Fig.14 is a schematic diagram of the protective cover (looking up);

[0041] Fig.15 is a schematic diagram of a limit bracket;

[0042] Fig.16 is a schematic diagram of a modified example of a limiting bracket;

[0043] Fig.17 is a cross-sectional view of the first oblique wedge;

[0044] Fig.18 is a schematic diagram of a modified example of the protective cover;

[0045] Fig.19It is a partial schematic diagram of the protective cover in the open state (another variation of the limit bracket).

[0046] 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, 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 - air outlet assembly, 6.1 - through hole, 6.2 - connecting tube, 6.3 - central connecting tube, 6.4 - guide hole, 6.5 - mounting hole, 6 .6 - fourth guide column, 6.7 - second coil spring, 6.8 - first oblique wedge, 6.9 - gap, 6.10 - bar-shaped through groove, 7 - protective cover, 7.1 - guide strip, 7.2 - second guide column, 7.3 - anti-skid groove, 7.4 - first coil spring, 7.5 - avoidance groove, 7.6 - positioning groove, 8 - ventilation pipe, 9 - limit bracket, 9.1 - rod, 9.2 - second oblique wedge, 9.3 - third guide column, 9.4 - inclined surface, 9.5 - trigger, 10 - mask. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0048] See also Figure 2 - Fig.17 A sliding protection device for an air outlet of a ventilator, the ventilator comprises a ventilator body and a ventilator tube 8, the ventilator body comprises an upper cover 1 of the ventilator and a lower cover 2 of the ventilator (the upper cover 1 and the lower cover 2 constitute a shell), a fan assembly 3, a control panel 4, a water tank 5 and an air outlet assembly 6 are installed in the space formed by the upper cover 1 and the lower cover 2. When the ventilator is in use, the ventilator tube 8 is plugged into the air outlet assembly 6, and when the use is over, the ventilator tube 8 is removed from the air outlet assembly 6. The fan assembly 3 includes a fan air inlet 3.1, a fan body 3.2 and a fan air outlet 3.3; the water tank 5 includes a water tank air inlet 5.1 and a water tank air outlet 5.2; the air in the external environment enters the fan body 3.2 through the fan air inlet 3.1 and is pressurized, and the pressurized gas enters the water tank air inlet 5.1 and the water tank air outlet 5.2 in turn from the fan air outlet 3.3 to adjust the humidity, and finally the gas enters the ventilation pipe 8 through the air outlet assembly 6. The air outlet assembly 6 is the air outlet of the ventilator.

[0049] See also Figure 2 - Figure 8The 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 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 rigidity, and is preferably made by one-piece molding.

[0050] See also Figure 2 - Fig.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 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, and correspondingly, when the fixing seat 1.1 and the upper cover 1 are integrally formed, that is, the opening 1.1.1 is provided on the upper cover 1; when the fixing seat 1.1 and the upper cover 1 are separately connected and assembled, it can be understood that the fixing seat 1.1 and the upper cover 1 are both provided with The protective cover 7 has an opening 1.1.1, and the openings of the two correspond to each other; or the opening 1.1.1 is only provided on the upper cover 1, and the fixing seat 1.1 is provided on one side of the opening 1.1.1 (not shown in the figure), and the length of the fixing seat 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 seat 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-skid groove 7.3. The anti-skid groove 7.3 facilitates the user to operate the protective cover 7, so as to slide the protective cover 7 open. It should be noted that: in the above embodiment, the fixing seat 1.1 is arranged to protrude from the upper cover 1. However, those skilled in the art will appreciate that the fixing seat 1.1 may be disposed on the inner surface of the upper cover 1, or even a plate-shaped component located inside the upper cover 1, as long as the fixing seat 1.1 can provide a sliding positioning guide for the protective cover 7.

[0051] 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 fixed 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 coil spring 7.4 (an example of a first elastic member) are respectively sleeved on the first guide column 1.1.3 and the second guide column 7.2. In order to facilitate the first coil spring 7.4 to pass through, a through hole 6.1 is provided on the side of the air outlet assembly 6. The first coil spring 7.4 can apply elastic force to the protective cover 7 to return to the closed state. When the ventilator is not in use, the first coil spring 7.4 can ensure that the protective cover 7 is always in a closed state, that is, the protective cover 7 closes the opening 1.1.1 of the fixed seat 1.1.

[0052] The fixing seat 1.1 is provided with guide grooves 1.1.2 on both sides, and the protective cover 7 is provided with guide bars 7.1 matched with the fixing seat 1.1. By providing the guide bars and the guide grooves, it is possible to ensure that the protective cover 7 is stably and reliably slidably mounted on the sliding cover mounting seat 1.1. It can be understood by those skilled in the art that the guide bars 7.1 can also be provided on the fixing seat 1.1, and the guide grooves 1.1.2 can be provided on the protective cover 7, as long as it can ensure that the protective cover 7 can slide stably relative to the fixing seat 1.1.

[0053] 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 limiter assembly that automatically responds to the insertion of the ventilating tube 8 into the air outlet assembly 6. The elastic limiter assembly mainly includes a second elastic member, a limiter bracket and a first inclined wedge block;

[0054] The limiting bracket 9 includes two rods 9.1 and a second oblique wedge 9.2 which are parallel to each other, 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 limiting bracket 9 passes through the guide hole 6.4, so that the limiting bracket 9 is reliably connected to the air outlet assembly 6 by sliding; the limiting 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 coil spring 6.7 are respectively sleeved on the third guide column 9.3 and the fourth guide column 6.6, and the second coil spring 6.7 is used to apply an elastic force to make the limiting bracket 9 move toward the protective cover 7; the elastic force direction of the first coil spring 7.4 and the elastic force direction of the second coil spring 6.7 are perpendicular to each other. The connecting tube 6.2 is provided with a through mounting hole 6.5, and a first oblique wedge block 6.8 cooperating with the second oblique wedge block 9.2 is provided in the mounting hole 6.5 (usually, a bias spring (not shown) needs to be provided 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 the exposed state, and the protective cover 7 is locked (limited) by abutting against the limiting bracket 9 under the action of the first coil spring 7.4; in response to the ventilation 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 can slide in the mounting hole 6.5. With the arrangement of the inclined wedge, when the vent pipe 8 is inserted into the gap 6.9, the vent pipe 8 squeezes the first inclined wedge 6.8 to move it, and the movement of the first inclined wedge 6.8 causes the limit bracket 9 to move downward, and the movement of the limit bracket 9 can release the lock of the protective cover 7, so that the protective cover 7 abuts against the vent pipe 8 under the action of the first coil spring 7.4, and when the vent pipe 8 is removed, the protective cover 7 automatically returns to the closed state under the action of the first coil spring 7.4. In order to ensure that the first inclined wedge 6.8 moves under the action of the vent pipe 8, usually, the part of the first inclined wedge 6.8 located in the gap 6.9 is a round head or an inclined surface, so that it can move in response to the insertion action of the vent pipe 8.

[0055] In one embodiment, the limiting bracket 9 does not necessarily include two rods 9.1 parallel to each other, but may include only one rod 9.1. Fig.16 shown.

[0056] Preferably, if Fig.14 As shown, the inner surface of the protective cover 7 is provided with an avoidance groove 7.5 corresponding to the limit bracket 9. The setting 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 setting, such as Fig.14As shown, 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 FIG. 1 ). Figure 8 shown).

[0057] In the above embodiment, the limiting bracket 9 abuts against the right edge of the protective cover 7 to lock the protective cover 7 in the open state. Fig.18 As shown, the inner surface of the protective cover 7 is also provided with a positioning groove 7.6, and when the protective cover 7 is in the open state, the limiting bracket 9 abuts against the side wall of the positioning groove 7.6. By providing the positioning groove 7.6, the limiting bracket 9 does not have to abut against the edge of the protective cover 7, so that the position of the limiting bracket 9 can be set more freely.

[0058] 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 coil spring 7.4, such as Figure 3 , Figure 5 As shown, 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.

[0059] The user pushes the anti-skid groove 7.3 on the protective cover 7 backward to make the protective cover 7 slide backward to expose the air outlet assembly 6 of the ventilator. After the protective cover 7 slides to the rear of the limit bracket 9, it is stopped by the upper end of the limit bracket 9. After the anti-skid groove 7.3 is released, the protective cover 7 will not rebound. Figure 8 At this time, the protective cover 7 is in the open state, the opening 1.1.1 is not blocked, and the air outlet assembly 6 is in an exposed state.

[0060] When the user inserts the vent pipe 8, the front end of the vent pipe 8 will push the first inclined wedge block 6.8 outwards during the insertion process, and the first inclined wedge block 6.8 will move backwards. Since the second inclined wedge block 9.2 cooperates with the first inclined wedge block 6.8, the first inclined wedge block 6.8 drives the second inclined wedge block 9.2 to move downwards, so that the limit of the protective cover 7 is disengaged, and the limit bracket 9 is located below the protective cover 7. The protective cover 7 will slide forward under the action of the first coil spring 7.4 to support the vent pipe 8. Fig. 9 - Fig.10 shown.

[0061] When the user stops using the ventilator and removes the ventilator tube 8, the protective cover 7 will continue to slide forward under the action of the first coil spring 7.4 to completely cover the opening 1.1.1, thereby protecting the ventilator air outlet assembly 6. At this time, the protective cover 7 is in a closed state, the opening 1.1.1 is blocked by the protective cover 7, and the air outlet assembly 6 is in a non-exposed state.

[0062] In another embodiment, Fig.19 As shown, a trigger 9.5 is arranged on the limit bracket 9 of the elastic limit assembly; a strip groove 6.10 is arranged on the connecting tube 6.2, and the trigger 9.5 passes through the strip groove 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 pipe 8 is inserted into the gap 6.9, the vent pipe 8 will push the trigger 9.5 to move downward in the strip groove. 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 of the protective cover 7, so that the protective cover 7 abuts against the vent pipe 8 under the action of the first coil spring 7.4, so as to achieve the purpose of releasing the lock of the protective cover 7 by the limit bracket 9 in response to the insertion of the vent pipe 8 into the air outlet assembly 6. Of course, those skilled in the art will appreciate that other possible methods may be used to achieve the technical effect of releasing the lock on the protective cover 7 in response to the action of the limiting bracket 9 inserting the vent pipe 8 into the air outlet assembly 6 .

[0063] The embodiments of the present invention are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention is not limited to the above-mentioned specific implementations, which are merely illustrative and not restrictive. Under the enlightenment of the present invention, those skilled in the art can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the protection scope of the present invention.

Claims

1. A ventilator air outlet sliding protection device, comprising a ventilator body and a ventilator pipe (8), the ventilator body comprising a fan and an air outlet assembly, the fan being provided with a fan air inlet (3.1) and a fan air outlet (3.3), the air outlet assembly being communicated with the fan air outlet (3.3) and the air outlet assembly being used to connect the ventilator pipe (8), characterized in that: The air outlet assembly (6) is located in the shell, a fixing seat (1.1) is provided on the shell, and a protective cover (7) is slidably provided on the fixing seat (1.1); It also comprises a first elastic member 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.

2. A ventilator air outlet sliding protection device according to claim 1, characterized in that: The shell is provided with an opening (1.1.1) corresponding to the air outlet assembly (6); when the protective cover (7) is opened, the opening (1.1.1) is not blocked, so that the air outlet assembly (6) is in an exposed state; when the protective cover (7) is closed, the opening (1.1.1) is blocked, so that the air outlet assembly (6) is in a non-exposed state.

3. A ventilator air outlet sliding protection device according to claim 1, characterized in that: One end of the elastic member is connected to the protective cover (7), and the other end is connected to the housing or the fixing seat (1.1).

4. A ventilator air outlet sliding protection device according to claim 1, characterized in that: The elastic limiting assembly comprises a second elastic member and a limiting bracket (9), wherein the second elastic member is used to apply an elastic force causing the limiting bracket (9) to move toward the protective cover (7).

5. A ventilator air outlet sliding protection device according to claim 4, characterized in that: The limiting bracket (9) is slidably arranged on the air outlet assembly (6); one end of the second elastic member 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 is perpendicular to the elastic force direction of the first elastic member.

6. 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.

7. A ventilator air outlet sliding protection device according to claim 6, 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).

8. A ventilator air outlet sliding protection device according to claim 6 or 7, characterized in that: An opening is provided on the wall of the connecting cylinder (6.2), a movable trigger is provided through the opening, and an end of the trigger is located in the gap between the connecting cylinder (6.2) and the central connecting tube (6.3).

9. A ventilator air outlet sliding protection device according to claim 8, 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 vent pipe (8) is inserted into the gap between the connecting tube (6.2) and the central connecting tube (6.3), the vent pipe (8) triggers the first inclined wedge block (6.8) to slide in the horizontal direction in the opening, so as to drive the second inclined wedge block (9.2) to drive the limiting bracket (9) to move downward.

10. A ventilator air outlet sliding protection device according to claim 8, 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).

11. A ventilator air outlet sliding protection device according to claim 8, characterized in that: The opening 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.

12. A ventilator air outlet sliding protection device according to claim 4, 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).

13. A ventilator air outlet sliding protection device according to claim 8, 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).

14. A ventilator air outlet sliding protection device according to claim 3, characterized in that: The first elastic member is a coil spring, the lower surface of the housing or the fixing seat is provided with a first guide column (1.1.3), the lower surface of the protective cover (7) is provided with a second guide column (7.2), and the two ends of the first elastic member are respectively sleeved on the first guide column (1.1.3) and the second guide column (7.2).

15. A ventilator air outlet sliding protection device according to claim 4, characterized in that: The second elastic member is a coil spring, the limiting bracket (9) is provided with a third guide column (9.3), the connecting tube (6.2) is provided with a fourth guide column (6.6), and the two ends of the second elastic member are respectively sleeved on the third guide column (6.2) and the fourth guide column (6.6).

16. A ventilator air outlet sliding protection device according to claim 1, 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).

Images