Cleaning mechanism for filter of suction device and suction device

Abstract

The utility model discloses a cleaning mechanism for a filter of a suction device, which comprises a shell (1) with a hollow cavity, and the shell is provided with a first air path port (121), a second air path port (122) and a clean air inlet port (111); the opening and closing element (2) is movably connected with the shell so as to be switched between an opening station and a closing station; a locking element (3) movably arranged to switch between a locked state and an unlocked state; a button (5) movably arranged so as to be movable over an opening stroke and arranged in association with the locking element; the first elastic element (6) is arranged between the opening and closing element and the button; when the button moves on an opening stroke, the first elastic element accumulates force; when the button moves to the tail end of the opening stroke, the locking element is switched to the unlocking state, and meanwhile the first elastic element enables the opening and closing element to be switched to the opening station from the closing station.

Description

Technical Field

[0001] The utility model relates to a purging and cleaning mechanism, in particular to a cleaning mechanism for a suction device. Background Art

[0002] Suction devices are widely used in daily production and life. A suction motor disposed within the device creates a negative pressure within the device, thereby sucking the object to be sucked outside the device along with the air flow into a dust collection chamber within the housing of the suction device. Since a large amount of dust is often sucked in during the operation of the suction device, a filter is often provided beside the dust collection chamber of the suction device.

[0003] After the suction device has been used for a certain period of time, a lot of dust often accumulates on the filter, resulting in blockage of the filter. During the dust suction process, the air performance will decline due to the blockage of the filter. Therefore, a cleaning device or mechanism is required to clean the filter. Summary of the Utility Model

[0004] One of the purposes of the present utility model is to provide a cleaning mechanism for a filter of a suction device, which has a simple structure, can be compatible with a variety of suction devices, and can be started efficiently and conveniently to clean the filter when needed.

[0005] To achieve the above purpose, the present utility model provides a cleaning mechanism for a filter of a suction device, which includes:

[0006] A housing having a hollow cavity, the housing having a first gas path port for fluid communication with the motor chamber of the suction device, a second gas path port for fluid communication with the filter of the suction device, and a cleaning air inlet port for communication with the external environment;

[0007] An opening and closing element, which is movably connected to the housing to switch between an open position and a closed position. In the closed position, the opening and closing element opens the first gas path port and closes the cleaning air inlet port; in the open position, the opening and closing element closes the first gas path port and opens the cleaning air inlet port;

[0008] A locking element, which is movably arranged to switch between a locked state and an unlocked state. In the locked state of the locking element, the locking element engages with the opening and closing element to prevent the opening and closing element from switching to the open position; in the unlocked state, the locking element disengages from the opening and closing element to enable it to switch to the open position;

[0009] A button, which is movably arranged to be able to move on an opening stroke, and the button is also associated with the locking element;

[0010] A first elastic element, which is arranged between the opening and closing element and the button;

[0011] When the button moves on the opening stroke, the first elastic element accumulates force; when the button moves to the end of the opening stroke, the locking element switches to the unlocked state, and at the same time the first elastic element switches the opening and closing element from the closing position to the opening position.

[0012] Furthermore, in the cleaning mechanism described in the present utility model, the opening and closing element is rotatably connected to the shell via a first rotating shaft so as to switch between an open position and a closed position.

[0013] Furthermore, in the cleaning mechanism described in the utility model, the opening and closing element includes a lever portion and a baffle portion extending from the lever portion into the shell, the lever portion is rotatably connected to the shell through a first rotating shaft, and the baffle portion has a hollow portion and a shielding portion; wherein in the closing position, the hollow portion is located at the first air path port, and the lever portion covers the cleaning air inlet port; in the opening position, the shielding portion is located at the first air path port, and the lever portion leaves the cleaning air inlet port.

[0014] Furthermore, in the cleaning mechanism described in the utility model, a first rotating shaft groove is provided on the shell, and the first rotating shaft is integrally formed on the lever portion and is arranged in the first rotating shaft groove.

[0015] Furthermore, in the cleaning mechanism described in the present utility model, the locking element is rotatably connected to the shell through a second rotating shaft so as to be movably arranged.

[0016] Furthermore, in the cleaning mechanism described in the utility model, the locking element includes a first arm portion and a second arm portion arranged on both sides of the second rotating shaft, and the second arm portion has a locking portion for engaging with the opening and closing element.

[0017] Furthermore, in the cleaning mechanism described in the utility model, a groove for accommodating the first arm portion is provided on the button, and when the button has not yet moved on the opening stroke, there is a distance between the upper wall of the groove and the first arm portion.

[0018] Furthermore, in the cleaning mechanism described in the utility model, the shell includes a lower seat and an upper cover, the first air path port and the second air path port are arranged on the lower seat, and the cleaning air inlet port is arranged on the upper cover.

[0019] Furthermore, in the cleaning mechanism described in the utility model, a second elastic element is provided between the opening and closing element and the shell.

[0020] Another object of the present utility model is to provide a suction device, which can achieve an efficient and labor-saving self-cleaning function.

[0021] Based on the above object, the present utility model further provides a suction device, which includes a housing. A dust collection chamber, a motor chamber and a filter are provided in the housing. The dust collection chamber is located on the dust collection side of the filter, and a cleaning mechanism as described above is provided in the accommodation space on the cleaning side of the housing, which is opposite to the dust collection side of the filter.

[0022] When the cleaning mechanism of the present utility model needs to clean the filter, it can quickly and conveniently switch the opening and closing element from the closed position to the open position, thereby greatly improving the working efficiency.

[0023] The cleaning mechanism of the present utility model has a simple structure and low cost, and can be compatible with the current suction device.

[0024] Since the suction device of the present utility model adopts the above cleaning mechanism, the energy consumption during use can be reduced. Description of the Drawings

[0025] Figure 1 Shows a schematic structural diagram of a suction device.

[0026] Figure 2 Shows a schematic external structure diagram of the cleaning mechanism of the present utility model in an embodiment.

[0027] Figure 3 Shows the state of the opening and closing element of the cleaning mechanism of the present utility model in the closed position from a perspective of three-dimensional section.

[0028] Figure 4 Shows a schematic structural diagram of the lower seat of the cleaning mechanism of the present utility model in an embodiment.

[0029] Figure 5 Shows the state of the opening and closing element of the cleaning mechanism of the present utility model in the open position from a perspective of three-dimensional section.

[0030] Figure 6 Shows the state of the cleaning mechanism of the present utility model in an embodiment where the button has not started the opening stroke from a perspective of planar section.

[0031] Figure 7 Shows the state of the cleaning mechanism of the present utility model in an embodiment where the button moves to the end of the opening stroke from a perspective of planar section.

[0032] Figure 8Shows a three-dimensional structural schematic diagram of the opening and closing element of the cleaning mechanism according to the present utility model in an embodiment.

[0033] Figure 9 Shows a front view of the opening and closing element of the cleaning mechanism according to the present utility model in an embodiment. Detailed implementation manners

[0034] The cleaning mechanism and the suction device according to the present utility model will be further explained and described below in conjunction with the specification drawings and specific embodiments. However, such explanations and descriptions shall not unduly limit the technical solutions of the present utility model.

[0035] Figure 1 Shows a suction device 100 adopted in daily production and life. The suction device 100 includes a housing 101. A dust collection chamber 105 is provided inside the housing 101. The dust collection chamber 105 is conductively connected to an intake air duct 103 through a port 102 on the housing 101. A suction motor for realizing suction is arranged in a motor chamber 104. When the suction device 100 is working, the suction motor starts, thereby generating a negative pressure inside the housing, and then sucking the object to be sucked together with the air flow into the dust collection chamber 105 of the suction device. Since a large amount of dust is often inhaled during the working process of the suction device, a filter 106 is often provided beside the dust collection chamber 105 of the suction device.

[0036] After being used for a period of time, a lot of dust often accumulates on the dust collection side 1061 of the filter 106, resulting in the blockage of the filter, and then affecting the air performance and suction effect of the suction device. Therefore, a mechanism provided on the cleaning side 1062 opposite to the dust collection side 1061 of the filter is used to clean the filter.

[0037] The present utility model expects to provide a cleaning mechanism that can be conveniently and quickly opened when the filter needs to be cleaned, so as to be quickly put into use.

[0038] To achieve the above object, the present utility model proposes a cleaning mechanism for a filter of a suction device in an embodiment.

[0039] Figure 2 Shows an external structural schematic diagram of the cleaning mechanism according to the present utility model in an embodiment.

[0040] Figure 3 Shows an internal structural schematic diagram of the cleaning mechanism according to the present utility model in an embodiment.

[0041] Such as Figure 2 And Figure 3As shown, in one embodiment, the cleaning mechanism may include a housing 1 having a hollow cavity. The hollow cavity can be in fluid communication with the motor chamber 104 of the suction device, the filter 106, and the external environment respectively.

[0042] In some more specific embodiments, to further facilitate the assembly of parts, the housing 1 may include a separately provided lower base 12 and an upper cover 11.

[0043] Figure 4 Shows a schematic structural view of the lower base of the cleaning mechanism according to the present invention in one embodiment.

[0044] As Figure 4 shown, in some more specific embodiments, a first air passage port 121 for fluid communication with the motor chamber 104 of the suction device is provided on the side wall of the lower base 12, and a second air passage port 122 for fluid communication with the filter of the suction device is provided at the bottom of the lower base 12.

[0045] As Figure 3 shown, a cleaning air intake port 111 for fluid communication with the external environment is provided on the upper cover 11.

[0046] In addition, as Figure 2 and Figure 3 shown, the cleaning mechanism further includes an opening and closing element 2, which is movably connected to the housing 1 to switch between a closed position as Figure 3 shown and an open position as Figure 5 shown. Among them, as Figure 3 shown, in the closed position, the opening and closing element 2 opens the first air passage port (i.e., does not block the first air passage port) and closes or blocks the cleaning air intake port 111.

[0047] In the working state of the suction device, that is, when the motor of the suction device is started, a negative pressure will be established in the dust collection chamber 105, and then the sucked object will be sucked into the dust collection chamber 105 of the suction device along with the airflow. As Figure 3 shown, when the filter 106 does not need to be cleaned and purged, the opening and closing element 2 is in the closed position, that is, the external environment is not in communication with the hollow cavity of the housing 1, and the hollow cavity is in communication with the motor chamber 104 through the first air passage port 121 and in communication with the filter 106 through the second air passage port. At this time, a negative pressure exists in the hollow cavity, and the external environment is basically at atmospheric pressure. Therefore, the pressure difference between the external environment and the hollow cavity will also keep the opening and closing element 2 in the closed position. In this state, the airflow passes from the dust collection chamber 105 through the filter 106 into the hollow cavity, and then into the motor chamber 104. During this process, the dust sucked by the suction device will accumulate on the dust collection side of the filter 106 (i.e., Figure 2 and Figure 3lower side of the middle filter 106).

[0048] As Figure 5 shown, at the opening station, the opening and closing element 2 closes the first air path port and moves away from the housing 1 to open the cleaning air inlet port 111. In this state, the hollow cavity is no longer in communication with the motor cavity 104, but is still in communication with the filter 106 through the second air path port, and is also in fluid communication with the external environment through the cleaning air inlet port 111, so that the air flow quickly enters the hollow cavity from the external environment and flows from the hollow cavity to the filter 106, thereby cleaning and purging the filter 106.

[0049] Continuing to refer to Figure 3 and Figure 5 , the cleaning mechanism further includes a locking element 3 movably arranged on the housing 1, so that the locking element 3 can be switched between a locked state and an unlocked state. As Figure 3 shown, in the locked state of the locking element 3, the locking element 3 meshes with the opening and closing element 2 to prevent the opening and closing element 2 from switching to the opening station. As Figure 5 shown, in the unlocked state of the locking element 3, the locking element 3 disengages from the opening and closing element 2, so that the opening and closing element 2 can be opened relative to the housing 1.

[0050] As Figure 6 and Figure 7 shown, the cleaning mechanism further includes a movably arranged button 5, so that it can move on the opening stroke. The button 5 is also associated with the locking element 3, so that as the button 5 moves on the opening stroke, the locking element is switched from the locked state to the unlocked state. A first elastic element 6 is arranged between the opening and closing element 2 and the button 5.

[0051] As Figure 6 shown, when the button 5 has not started to move on the opening stroke under the action of an external force, the opening and closing element 2 is in the closed station and the locking element 3 is in the locked state.

[0052] As Figure 7 shown, when the button 5 moves on the opening stroke (e.g., in the height direction) under the action of an external force, since the locking element 3 locks the movement of the opening and closing element 2, as the button 5 moves, the distance between the button 5 and the opening and closing element 2 becomes closer and closer. This process will cause the first elastic element 6 to store energy. Therefore, when the button 5 moves to the end of the opening stroke and the locking element 3 is switched to the unlocked state, the first elastic element 6 will be instantaneously released, thereby pushing the opening and closing element to quickly switch from the closed station to the opening station.

[0053] Thus, with the setting method of this embodiment, the cleaning mechanism will have a very high opening efficiency.

[0054] In some more specific examples, the first elastic element 6 may be a helical spring. In some other more specific examples, the first elastic element may also be a reed, an elastic belt or other similar elastic elements.

[0055] In some more specific embodiments, such as Figure 3 and Figure 5 shown, the opening and closing element 2 and the housing 1 may be rotatably connected through a first rotating shaft 21 to switch between an open position and a closed position. For example, when the opening and closing element 2 rotates in the clockwise direction as shown in Figure 3 and Figure 5 , it switches from the open position to the closed position. When the opening and closing element 2 rotates in the counterclockwise direction as shown in Figure 3 and Figure 5 , it switches from the closed position to the open position.

[0056] Of course, in other alternative embodiments, the opening and closing actions of the opening and closing element may also be achieved by linear movement instead of rotation. For example, it can be achieved by linear movement in the height direction relative to the housing to open or close.

[0057] As shown in Figure 8 and Figure 9 , in some more specific embodiments, the opening and closing element 2 includes a lever portion 22 and a baffle portion 23 extending from the lever portion into the housing. The lever portion 22 is rotatably connected to the housing 1 through the first rotating shaft 21. The baffle portion 23 has a hollow portion 231 and a shielding portion 232. According to this setting method, when the opening and closing element 2 is in the closed position, the hollow portion 231 corresponds to the first air passage port 121 of the housing 1, so as to realize fluid conduction with the motor cavity. At the same time, the lever portion 22 covers the cleaning air intake port 111 of the housing 1, so as to block the fluid passage with the external environment. When the opening and closing element 2 is in the open position, the opening and closing element 2 rotates around the first rotating shaft 21 by a certain angle, so that the solid shielding portion 232 blocks the first air passage port 121, and at the same time the lever portion also leaves the cleaning air intake port 111.

[0058] Continuing to refer to Figure 8 and Figure 9 , in order to further streamline the structure, the first rotating shaft 21 is integrally formed on the lever portion 22 and thus becomes a part of the lever portion. At the same time, as shown in Figure 2 , a first rotating shaft groove 112 may be provided on the housing 1 for accommodating the first rotating shaft 21.

[0059] Of course, in other alternative embodiments, a separate first rotating shaft independent of the opening and closing element may also be provided.

[0060] As shown in Figure 2As shown, in some more specific embodiments, in order to further stably arrange the first rotating shaft, a rotating shaft seat 113 can also be arranged on the housing 1.

[0061] As Figure 2 , Figure 3 and Figure 5 shown, in some more specific embodiments, the locking element 3 can be rotatably connected to the housing 1 through the second rotating shaft 4, so as to realize its movable arrangement.

[0062] As Figure 6 and Figure 7 shown, in some more specific embodiments, the locking element 3 includes a first arm portion 31 and a second arm portion 32 arranged on both sides of the second rotating shaft 4, and the second arm portion 32 has a locking portion 321 for engaging with the opening and closing element.

[0063] As Figure 6 and Figure 7 shown, in some more specific embodiments, the locking portion 321 can be set as a hook-shaped portion, which is adapted to the groove on the opening and closing element. The second rotating shaft 4 can be arranged in the second rotating shaft groove of the housing 1. In the state as Figure 6 shown, the locking element 3 is in a locked state, and the locking portion 321 falls into the groove of the opening and closing element, thereby preventing the opening and closing element 2 from switching to the open position.

[0064] Continuing to refer to Figure 6 and Figure 7 , in some more specific embodiments, the button 5 can be movably arranged in the button guide groove 13 on the housing 1, so that it can move in the height direction. A groove 51 for accommodating the first arm portion 31 is provided on the button 5. A protrusion is provided on the surface of the button 5 facing the opening and closing element 2, and at the same time, a protrusion is also provided on the surface of the opening and closing element 2 facing the button 5, which is used to connect the two ends of the first elastic element 6.

[0065] As Figure 6 shown, when the button 5 has not moved in the opening stroke, there is a distance G between the upper wall of the groove 51 and the first arm portion 31. In this way, when the button 5 moves a distance of G in the opening stroke, it will not cause the locking element 3 to switch to the unlocked state, but in this process, the first elastic element 6 is charged, such as compressed and charged.

[0066] As Figure 7As shown, when the button moves on the opening stroke under an external force, it stores energy for the first elastic element 6 within a distance of the spacing G. Then, when it reaches the end of the opening stroke, the upper wall of the groove 51 contacts the first arm 31 of the locking element 3 and continues to press the first arm 31, causing the locking element 3 to rotate counterclockwise about the second rotating shaft 4, so that the locking portion 321 disengages from the opening and closing element, realizing the unlocking of the opening and closing element 2. At the moment of unlocking, the first elastic element 6 is also released, thereby pressing the opening and closing element 2 to open it relative to the housing.

[0067] Continue to refer to Figure 6 and Figure 7 In some more specific embodiments, a second elastic element 7 may also be provided between the opening and closing element 2 and the housing 1. The second elastic element 7 can provide an elastic force to reset the opening and closing element, that is, when the external force is removed, the opening and closing element can be reset from the open position to the closed position under the elastic force of the second elastic element.

[0068] In some more specific examples, the second elastic element 7 can be a helical spring. In some other more specific examples, the second elastic element can also be a reed, an elastic belt or other similar elastic elements.

[0069] Of course, in some other alternative embodiments, the second elastic element may not be provided, but the gravity configuration of the opening and closing element can be set, for example, the part on the right side of the first rotating shaft is set to be heavier. In this way, when the external force is removed, the opening and closing element can also be reset from the open position to the closed position under the action of gravity.

[0070] In another embodiment of the present invention, a suction device 100 is also provided, which includes a housing 101. A dust collection chamber 105, a motor chamber 104 provided with a suction motor, and a filter 106 are provided inside the housing. The dust collection chamber is located on the dust collection side 1061 of the filter 106, and a cleaning mechanism as described above is provided in the accommodation space on the cleaning side 1062 opposite to the dust collection side 1061 of the filter 106.

[0071] Since the installation state and working state of the cleaning mechanism in the suction device 100 have been described in detail above, no repeated description will be given here.

[0072] By adopting the above structure, the opening of the opening and closing element of the cleaning mechanism of the present invention is faster, and when the filter needs to be cleaned, the valve can be quickly switched from the closed position to the open position.

[0073] Correspondingly, due to the adoption of the above cleaning mechanism, the suction device of the present invention can greatly improve the working efficiency.

[0074] It should be noted that the prior art part in the protection scope of the utility model is not limited to the embodiments given in the application documents. All prior art that does not contradict the scheme of the utility model, including but not limited to prior patent documents, prior public publications, prior public uses, etc., can be included in the protection scope of the utility model.

[0075] In addition, the combination of the various technical features in this case is not limited to the combination described in the claims of this case or the combination described in the specific embodiments. All technical features recorded in this case can be freely combined or combined in any way unless there is a contradiction between them.

[0076] It should also be noted that the above-listed embodiments are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made therewith are directly derived or easily associated with the contents disclosed by those skilled in the art from the present invention, and should all fall within the protection scope of the present invention.

Claims

1. A cleaning mechanism for a filter of a suction device, characterized in that: include: A housing (1) having a hollow cavity, the housing having a first air path port (121) for communicating with a motor chamber fluid of a suction device, a second air path port (122) for communicating with a filter fluid of the suction device, and a clean air intake port (111) for communicating with an external environment; an opening and closing element (2) movably connected to the housing so as to switch between an open position and a closed position, wherein in the closed position, the opening and closing element opens the first gas path port and closes the clean air inlet port; in the open position, the opening and closing element closes the first gas path port and opens the clean air inlet port; A locking element (3) which is movably arranged to switch between a locked state and an unlocked state, wherein in the locked state of the locking element, the locking element engages with the opening and closing element to prevent the opening and closing element from switching to an open position; In the unlocked state, the locking element is disengaged from the opening and closing element so that it can be switched to the open position; a button (5) movably arranged to be movable over an opening stroke, said button also being arranged in association with said locking element; A first elastic element (6) disposed between the opening and closing element and the button; When the button moves on the opening stroke, the first elastic element accumulates force; When the button moves to the end of the opening stroke, the locking element is switched to the unlocking state, and at the same time, the first elastic element switches the opening and closing element from the closing position to the opening position.

2. The cleaning mechanism according to claim 1, characterized in that: The opening and closing element (2) is rotatably connected to the housing (1) via a first rotating shaft (21) so as to switch between an open position and a closed position.

3. The cleaning mechanism according to claim 2, characterized in that: The opening and closing element (2) comprises a lever portion (22) and a baffle portion (23) extending from the lever portion into the shell, wherein the lever portion is rotatably connected to the shell via a first rotating shaft (21), and the baffle portion (23) has a hollow portion (231) and a shielding portion (232); wherein in the closing position, the hollow portion is located at the first air path port, and the lever portion covers the clean air inlet port; and in the opening position, the shielding portion is located at the first air path port, and the lever portion is away from the clean air inlet port.

4. The cleaning mechanism according to claim 3, characterized in that: The housing is provided with a first rotating shaft groove (112); the first rotating shaft (21) is integrally formed on the lever portion (22) and is arranged in the first rotating shaft groove (112).

5. The cleaning mechanism according to claim 1, characterized in that: The locking element (3) is rotatably connected to the housing (1) via a second rotating shaft (4) so ​​as to be movably arranged.

6. The cleaning mechanism according to claim 5, characterized in that: The locking element comprises a first arm portion (31) and a second arm portion (32) arranged on both sides of the second rotating shaft (4); the second arm portion has a locking portion (321) for engaging with the opening and closing element.

7. The cleaning mechanism according to claim 6, characterized in that: The button (5) is provided with a groove (51) for accommodating the first arm portion. When the button has not yet moved on the opening stroke, there is a distance (G) between the upper wall of the groove and the first arm portion.

8. The cleaning mechanism according to claim 1, characterized in that: The shell comprises a lower seat (12) and an upper cover (11), the first gas path port and the second gas path port are arranged on the lower seat, and the clean air inlet port is arranged on the upper cover.

9. The cleaning mechanism according to claim 1, characterized in that: A second elastic element (7) is provided between the opening and closing element and the housing.

10. A suction device (100), comprising a housing (101), wherein a dust collecting chamber (105), a motor chamber (104) and a filter (106) are arranged in the housing, wherein the dust collecting chamber (105) is located on a dust collecting side (1061) of the filter, and characterized in that: A cleaning mechanism as described in any one of claims 1 to 9 is provided in the accommodating space on the cleaning side (1062) of the housing opposite to the dust collecting side of the filter.

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