Filtering device and camera device

Abstract

The application discloses a filter device and a camera device. The filter device comprises a first shell, a filter, a negative pressure component and a functional assembly. The first shell is provided with a containing cavity of an air inlet part and an air outlet part. The filter is arranged in the containing cavity and located between the air inlet part and the air outlet part. The negative pressure component is arranged in the containing cavity and located between the filter and the air outlet part. The functional assembly is arranged in the containing cavity and located on a side of the filter away from the air inlet part. The functional assembly has a first state and a second state. In the first state, the functional assembly blows the filter. In the second state, the functional assembly knocks the filter. In the filter device, the first state of the functional assembly can blow the filter, and the second state of the functional assembly can knock the filter, so that the self-cleaning of the filter can be realized in both states of the functional assembly, the service life of the filter is effectively prolonged, the maintenance period is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of security technology, and in particular to a filtering device and a camera device. Background Technology

[0002] Filter devices have a filtration efficiency. This efficiency gradually decreases over time. Current technology typically involves replacing the filter cartridge for maintenance. However, cartridge replacement requires on-site work by skilled technicians, leading to significantly increased maintenance costs and substantial periodic maintenance pressure. Summary of the Invention

[0003] This application provides a filtration device and a camera device to solve the technical problem that filter replacement requires on-site work by professional technicians, which leads to a significant increase in maintenance costs and a large periodic maintenance pressure.

[0004] To address the aforementioned technical problems, this application proposes a filtration device, comprising: a first housing with a receiving cavity having an air inlet and an air outlet; a filter element disposed within the receiving cavity and located between the air inlet and the air outlet; a negative pressure element disposed within the receiving cavity and located between the filter element and the air outlet; and a functional component disposed within the receiving cavity and located on the side of the filter element away from the air inlet, the functional component having a first state and a second state; in the first state, the functional component blows through the filter element; and in the second state, the functional component taps the filter element.

[0005] The functional components include a drive component, a purging component, and a striking component. The drive component is connected to the purging component and the striking component. In a first state, the drive component drives the purging component to purge the filter. In a second state, the drive component drives the striking component to strike the filter.

[0006] The drive assembly includes a drive component, a first functional component, and a second functional component. The drive component drives the first functional component to be releasably locked relative to the second functional component. Both the blowing component and the striking component are connected to the second functional component. When the drive component rotates clockwise, the first and second functional components lock and drive the blowing component. When the drive component rotates counterclockwise, the first and second functional components unlock and drive the striking component.

[0007] The functional components include a second housing and an elastic element. The driving element, the first functional element, the second functional element, and the elastic element are all located inside the second housing, while the blowing element and the striking element are located outside the second housing. The first functional element has a first wedge-shaped portion on one side facing the second functional element, and the second functional element has a second wedge-shaped portion on one side facing the first functional element. When the first wedge-shaped portion and the second wedge-shaped portion are locked, the elastic element abuts against the second functional element. When the first wedge-shaped portion and the second wedge-shaped portion are unlocked, the elastic element is reciprocated and acts on the striking element.

[0008] The first wedge-shaped portion includes a first wedge-shaped surface and a first wedge-shaped side surface. The height of the first wedge-shaped surface projected onto the first functional component gradually increases in a clockwise direction and is distributed in a ring shape. The second wedge-shaped portion includes a second wedge-shaped surface and a second wedge-shaped side surface. The height of the second wedge-shaped surface projected onto the second functional component gradually decreases in a clockwise direction and is distributed in a ring shape. The first wedge-shaped surface and the second wedge-shaped surface are releasably inclined, and the first wedge-shaped side surface and the second wedge-shaped side surface are releasably abutted.

[0009] The second functional component includes a first sub-functional part and a second sub-functional part connected to the first sub-functional part. The second wedge-shaped part is disposed on the side of the first sub-functional part away from the second sub-functional part. The elastic member is sleeved on the outer periphery of the second sub-functional part, and the two ends of the elastic member are connected between the first sub-functional part and the bottom of the second housing.

[0010] The purging component includes a connecting shaft and at least two fan blades disposed on the outer periphery of the connecting shaft, with the end of the connecting shaft away from the fan blades connected to the drive assembly.

[0011] The connecting shaft has an extension that is close to the filter element and is a striking element.

[0012] The filter element's orthogonal projection onto the air intake is located inside the air intake.

[0013] The filter device includes at least two negative pressure components, and the first housing is provided with at least two air outlets, with at least one negative pressure component at each air outlet.

[0014] The functional component includes a second housing, which is detachably connected to the side of the first housing facing the filter element, and the second housing is located between the two air outlets at the connection position of the first housing.

[0015] To solve the above-mentioned technical problems, this application proposes a camera device, including: a camera; and the aforementioned filtering device, wherein the filtering device is disposed in the camera.

[0016] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a filtering device. The filtering device includes a first housing, a filter element, a negative pressure element, and a functional component. The first housing has a receiving cavity for an air inlet and an air outlet. The filter element is disposed within the receiving cavity and located between the air inlet and the air outlet. The negative pressure element is disposed within the receiving cavity and located between the filter element and the air outlet. The functional component is disposed within the receiving cavity and located on the side of the filter element away from the air inlet. The functional component has a first state and a second state. In the first state, the functional component blows the filter element. In the second state, the functional component taps the filter element.

[0017] Through the combined action of the first housing, filter element, negative pressure element, and functional components, the first state of the functional components can purge the filter element, and the second state of the functional components can knock the filter element, so that the filter element can be self-cleaned in both states. This not only effectively extends the service life of the filter element, but also increases the maintenance cycle, thereby reducing maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0019] Figure 1 This is a first structural schematic diagram of an embodiment of the filtering device of this application;

[0020] Figure 2 This is an exploded view of an embodiment of the filtering device of this application;

[0021] Figure 3 This is a schematic diagram of the functional components in the filtering device of this application;

[0022] Figure 4 This is a partial schematic diagram of the functional components in the filtering device of this application in the first state;

[0023] Figure 5 This is a partial schematic diagram of the functional components in the filtering device of this application in the second state;

[0024] Figure 6 This is a schematic diagram of the functional components in the filtering device of this application in the first state;

[0025] Figure 7 This is an exploded view of the functional components in the filtering device of this application;

[0026] Figure 8 yes Figure 5 An enlarged schematic diagram of A shown;

[0027] Figure 9 This is a first exploded view of the first functional component and the second functional component of this application;

[0028] Figure 10 This is a second exploded view of the first and second functional components of this application;

[0029] Figure 11 This is a second structural schematic diagram of an embodiment of the filtering device of this application.

[0030] Reference numerals: 10, Filter device; 11, First housing; 111, Air inlet; 112, Air outlet; 113, Receiving cavity; 12, Filter element; 13, Negative pressure element; 14, Functional component; 141, Drive assembly; 1411, Drive element; 1412, First functional component; 14121, First wedge-shaped portion; 14121a, First wedge-shaped surface; 14121b, First wedge-shaped side surface; 14122, First functional component. 1413. Hole; 14131. Second functional component; 14131. Second wedge-shaped portion; 14131a. Second wedge-shaped surface; 14131b. Second wedge-shaped side surface; 14132. First sub-functional component; 14133. Second sub-functional component; 142. Blowing component; 1421. Connecting shaft; 1422. Fan blade; 143. Striking component; 1431. Extension; 144. Second housing; 145. Elastic component; 16. Filter bracket. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] The filtering device and camera device provided by the present invention will be described in detail below with reference to the embodiments.

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 , Figure 1 This is a first structural schematic diagram of an embodiment of the filtering device of this application; Figure 2 This is an exploded view of an embodiment of the filtering device of this application; Figure 3 This is a schematic diagram of the functional components in the filtering device of this application; Figure 4 This is a partial schematic diagram of the functional components in the filtering device of this application in the first state; Figure 5This is a partial schematic diagram showing the functional component of the filtering device in the second state. This application provides a filtering device. The filtering device 10 includes a first housing 11, a filter element 12, a negative pressure element 13, and a functional component 14. The first housing 11 has a receiving cavity 113 with an air inlet 111 and an air outlet 112. The filter element 12 is disposed within the receiving cavity 113 and located between the air inlet 111 and the air outlet 112. The negative pressure element 13 is disposed within the receiving cavity 113 and located between the filter element 12 and the air outlet 112. The functional component 14 is disposed within the receiving cavity 113 and located on the side of the filter element 12 away from the air inlet 111. The functional component 14 has a first state and a second state. In the first state, the functional component 14 blows the filter element 12. In the second state, the functional component 14 taps the filter element 12.

[0035] The filter device 10 can be installed in a camera (not shown in the figure), etc. The first housing 11 provides mounting positions for the filter element 12, the negative pressure element 13, and the functional components 14, etc. The air inlet 111 is used for outside air to enter the receiving cavity 113. The air inlet 111 can be located at the bottom of the first housing 11. The air inlet 111 can include at least one air inlet (not shown in the figure). The air outlet 112 is used for the filtered air to be discharged. The air outlet 112 can be located at the top of the first housing 11. The air outlet 112 can include at least one air outlet (not shown in the figure). The number of air inlets and outlets can be determined according to the actual situation and is not limited here.

[0036] The filter element 12 can be detachably or fixedly connected within the receiving cavity 113, which is not limited here. The filter element 12 is located between the air inlet 111 and the air outlet 112. The filter element 12 performs a filtering function and can efficiently intercept dust particles, etc. The filter element 12 can be arranged in a whole area or in sections, which is not limited here. The filter element 12 can be a conventional component, which is not limited here.

[0037] The negative pressure component 13 can be detachably or fixedly connected within the receiving cavity 113, which is not limited here. The negative pressure component 13 is located between the filter element 12 and the air outlet 112. The negative pressure component 13 can create a certain negative pressure in the receiving cavity 113. When the negative pressure component 13 is working, external air flows sequentially along the air inlet 111, the receiving cavity 113, the filter element 12, and the air outlet 112. Dust and impurities in the air accumulate on the filter element 12. The number of negative pressure components 13 can be, but is not limited to, one, two, or more than three.

[0038] Functional component 14 can be detachably or fixedly connected within the receiving cavity 113, which is not limited herein. Functional component 14 is located on the side of filter 12 away from the air intake 111. Functional component 14 includes a first state and a second state. When functional component 14 is in the first state, it can blow away residual dust and dirt on the surface of filter 12, thereby reducing the direct accumulation of dust and impurities on filter 12. When functional component 14 is in the second state, it can tap filter 12 to vibrate and remove accumulated dust and dirt from filter 12.

[0039] Through the combined action of the first housing 11, filter element 12, negative pressure element 13 and functional component 14, the first state of functional component 14 can blow the filter element 12, and the second state of functional component 14 can knock the filter element 12, so that the filter element 12 can be self-cleaned in both states of functional component 14, which not only effectively extends the service life of filter element 12, but also increases the maintenance cycle, thereby reducing maintenance costs.

[0040] In some embodiments, functional component 14 includes a drive component 141, a blowing element 142, and a striking element 143. The drive component 141 is connected to the blowing element 142 and the striking element 143. In a first state, the drive component 141 drives the blowing element 142 to blow the filter element 12. In a second state, the drive component 141 drives the striking element 143 to strike the filter element 12.

[0041] The drive assembly 141 can be, but is not limited to, gear meshing drive, ramp movement drive, lifting drive, and motor drive. The blowing component 142 can be, but is not limited to, a fan and an air nozzle. The striking component 143 can be, but is not limited to, a column and a plate. The drive assembly 141 can be detachably or fixedly connected to the blowing component 142, which is not limited here. The drive assembly 141 can be detachably or fixedly connected to the striking component 143, which is not limited here.

[0042] When functional component 14 is in the first state, drive component 141 drives purge component 142 to purge filter component 12. When functional component 14 is in the second state, drive component 141 drives knocking component 143 to knock on filter component 12.

[0043] Through the combined action of the aforementioned drive assembly 141, the blowing element 142, and the striking element 143, the filter element 12 can achieve self-cleaning in both states. Simultaneously, the same drive assembly 141 drives either the blowing element 142 or the striking element 143, simplifying the number of drive assemblies 141 and reducing production costs.

[0044] In some embodiments, the drive assembly 141 includes a drive member 1411, a first functional member 1412, and a second functional member 1413. The drive member 1411 drives the first functional member 1412 in a releasable locking connection relative to the second functional member 1413. Both the blowing member 142 and the striking member 143 are connected to the second functional member 1413. When the drive member 1411 rotates clockwise, the first functional member 1412 and the second functional member 1413 lock and drive the blowing member 142. When the drive member 1411 rotates counterclockwise, the first functional member 1412 and the second functional member 1413 unlock and drive the striking member 143.

[0045] The drive element 1411 provides driving force. The drive element 1411 drives the first functional element 1412 to lock relative to the second functional element 1413. Alternatively, the drive element 1411 drives the first functional element 1412 to unlock relative to the second functional element 1413. The drive element 1411 can, but is not limited to, driving a motor.

[0046] The drive shaft of the first driving member 1411 is detachably or fixedly connected to the first functional member 1412. The first driving member 1411 can drive the first functional member 1412 to rotate clockwise or counterclockwise. During the process of the first driving member 1411 driving the first functional member 1412 to rotate clockwise or counterclockwise, the first functional member 1412 and the second functional member 1413 are releasably locked together.

[0047] The blowing component 142 is detachably or fixedly connected to the second functional component 1413. The striking component 143 is detachably or fixedly connected to the second functional component 1413.

[0048] When functional component 14 is in the first state, the first drive member 1411 drives the first functional component 1412 to rotate clockwise, and the first functional component 1412 and the second functional component 1413 are locked together. At this time, the first functional component 1412, the second functional component 1413, and the blowing member 142 all rotate synchronously in a clockwise direction. The blowing member 142 rotates at high speed, forming a directional airflow to blow away the dust and dirt remaining on the surface of the filter element 12.

[0049] When functional component 14 is in the second state, the first driving member 1411 drives the first functional component 1412 to rotate counterclockwise, and the first functional component 1412 and the second functional component 1413 are in an unlocked state. At this time, the second functional component 1413 does not move with the first functional component 1412. During the counterclockwise rotation of the first functional component 1412, the first functional component 1412 acts on the second functional component 1413, and the striking element 143 on the second functional component 1413 periodically acts on the filter element 12, thereby realizing periodic striking work.

[0050] By rotating the same drive component 1411 clockwise or counterclockwise, the first functional component 1412 and the second functional component 1413 can be in two states, which simplifies the self-cleaning structure of the filter component 12 and reduces production costs.

[0051] Please see Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the functional components in the filtering device of this application in the first state; Figure 7 This is an exploded view of the functional components in the filtering device of this application. (Combined with...) Figures 1 to 5 In some embodiments, functional component 14 includes a second housing 144 and an elastic member 145. The driving member 1411, the first functional member 1412, the second functional member 1413, and the elastic member 145 are all located within the second housing 144. The blowing member 142 and the striking member 143 are located outside the second housing 144. The first functional member 1412 has a first wedge-shaped portion 14121 on its side facing the second functional member 1413. The second functional member 1413 has a second wedge-shaped portion 14131 on its side facing the first functional member 1412. When the first wedge-shaped portion 14121 and the second wedge-shaped portion 14131 are locked, the elastic member 145 abuts against the second functional member 1413. When the first wedge-shaped portion 14121 and the second wedge-shaped portion 14131 are unlocked, the elastic member 145 is reciprocally pressed and reciprocally acts on the striking member 143.

[0052] The second housing 144 provides mounting positions for the aforementioned drive member 1411, first functional member 1412, second functional member 1413, and elastic member 145. The drive member 1411, first functional member 1412, second functional member 1413, and elastic member 145 are all located within the second housing 144. The second functional member 1413 extends at least partially outside the second housing 144 and connects to the blowing member 142 and the striking member 143.

[0053] The first wedge-shaped portion 14121 is detachably or fixedly connected to one side of the first functional member 1412 facing the second functional member 1413. The first wedge-shaped portion 14121 is wedge-shaped. The second wedge-shaped portion 14131 is detachably or fixedly connected to one side of the second functional member 1413 facing the first functional member 1412. The second wedge-shaped portion 14131 is wedge-shaped. In this embodiment, the first wedge-shaped portion 14121 is integrally formed on the first functional member 1412; the second wedge-shaped portion 14131 is integrally formed on the second functional member 1413.

[0054] When functional component 14 is in the first state, drive member 1411 rotates clockwise, at which time the first wedge-shaped portion 14121 and the second wedge-shaped portion 14131 are locked. Elastic member 145 abuts the second functional component 1413 against the first functional component 1412, so that the inclined surfaces of the first wedge-shaped portion 14121 and the second wedge-shaped portion 14131 engage and lock.

[0055] When functional component 14 is in the second state, drive member 1411 rotates counterclockwise, at which time the first wedge-shaped portion 14121 and the second wedge-shaped portion 14131 are unlocked. During the counterclockwise rotation of the first wedge-shaped portion 14121, due to the structural limitation of the first wedge-shaped portion 14121, the first wedge-shaped portion 14121 rotates periodically and acts on the second wedge-shaped portion 14131 and the elastic member 145, causing the elastic member 145 to reciprocate and compress. During the reciprocating return of the elastic member 145 to its original state, the second functional component 1413 moves up and down reciprocally, thereby periodically tapping the filter element 12, etc.

[0056] The second housing 144 integrates the drive component 1411, the first functional component 1412, the second functional component 1413, and the elastic component 145, making the functional component 14 an independent whole. The elastic properties of the elastic component 145 not only enhance the stability of the locking mechanism, allowing the purging component 142 to rotate synchronously with the second functional component 1413 and the first functional component 1412 to achieve purging operation, but also allow it to be periodically subjected to force, causing the striking component 143 to reciprocate in striking the filter component 12, achieving vibration operation, etc.

[0057] Please see Figure 8 , Figure 9 as well as Figure 10 , Figure 8 yes Figure 5 An enlarged schematic diagram of A shown; Figure 9 This is a first exploded view of the first functional component and the second functional component of this application; Figure 10 This is a second exploded view of the first and second functional components of this application. (Combined with...) Figures 1 to 7 In some embodiments, the first wedge-shaped portion 14121 includes a first wedge-shaped surface 14121a and a first wedge-shaped side surface 14121b. The first wedge-shaped surface 14121a's orthogonal projection height on the first functional member 1412 gradually increases in a clockwise direction and is distributed in a ring shape. The second wedge-shaped portion 14131 includes a second wedge-shaped surface 14131a and a second wedge-shaped side surface 14131b. The second wedge-shaped surface 14131a's orthogonal projection height on the second functional member 1413 gradually decreases in a clockwise direction and is distributed in a ring shape. The first wedge-shaped surface 14121a and the second wedge-shaped surface 14131a are releasably inclined. The first wedge-shaped side surface 14121b and the second wedge-shaped side surface 14131b are releasably abutting.

[0058] The first wedge-shaped surface 14121a is located on the surface of the first wedge-shaped portion 14121, that is, the first wedge-shaped surface 14121a of the first wedge-shaped portion 14121 faces the second wedge-shaped portion 14131. The first wedge-shaped side surface 14121b is located on the side of the first wedge-shaped portion 14121. The lower end of the first wedge-shaped side surface 14121b is connected to the end of the first wedge-shaped surface 14121a. Along the clockwise direction, the height of the orthographic projection of the first wedge-shaped surface 14121a on the first functional member 14121 gradually increases. For example, the first wedge-shaped surface 14121a can be a positive wedge-shaped inclined surface.

[0059] The second wedge-shaped surface 14131a is located on the surface of the second wedge-shaped portion 14131, that is, the second wedge-shaped surface 14131a of the second wedge-shaped portion 14131 is disposed facing the second wedge-shaped portion 14131. The second wedge-shaped side surface 14131b is located on the side of the second wedge-shaped portion 14131. The upper end of the second wedge-shaped side surface 14131b is connected to the end of the second wedge-shaped surface 14131a. Along the clockwise direction, the height of the orthographic projection of the second wedge-shaped surface 14131a on the second functional member 14131 gradually decreases. For example, the second wedge-shaped surface 14131a can be a reverse wedge-shaped inclined surface.

[0060] The first wedge-shaped surface 14121a and the second wedge-shaped surface 14131a can be fitted at an angle, in which case the first wedge-shaped side surface 14121b and the second wedge-shaped side surface 14131b abut against each other. Alternatively, the first wedge-shaped surface 14121a and the second wedge-shaped surface 14131a can be fitted at a non-angled angle, in which case the first wedge-shaped side surface 14121b and the second wedge-shaped side surface 14131b abut against each other.

[0061] By limiting the combined action of the first wedge-shaped portion 14121 and the second wedge-shaped portion 14131, not only can a rigid connection with inclined locking be achieved, but also periodic separation can be achieved. At the same time, the structure is simple, easy to install and operate, and can reduce costs.

[0062] The first wedge-shaped portion 14121 and the second wedge-shaped portion 14131 described above can be combined and spliced ​​to form a cylinder. The cylinder can be a solid cylinder or a hollow cylinder, etc.

[0063] In some embodiments, the second functional member 1413 includes a first sub-functional portion 14132 and a second sub-functional portion 14133 connected to the first sub-functional portion 14132. A second wedge-shaped portion 14131 is disposed on a side of the first sub-functional portion 14132 opposite to the second sub-functional portion 14133. An elastic member 145 is sleeved on the outer periphery of the second sub-functional portion 14133. The two ends of the elastic member 145 are connected between the bottom of the first sub-functional portion 14132 and the second housing 144.

[0064] The first sub-functional part 14132 and the second sub-functional part 14133 are detachably or fixedly connected. In this embodiment, the first sub-functional part 14132 and the second sub-functional part 14133 are integrally formed. The second wedge-shaped part 14131 is detachably or fixedly connected to the side of the first sub-functional part 14132 facing away from the second sub-functional part 14133. An elastic member 145 is sleeved on the outer periphery of the second sub-functional part 14133. One end of the elastic member 145 is connected to the end face of the first sub-functional part 14132 facing the second sub-functional part 14133. The other end of the elastic member 145 is connected to the bottom of the second housing 144.

[0065] By confining the elastic member 145 between the first sub-functional portion 14132 of the second functional member 1413 and the bottom of the second housing 144, not only is the stability of the elastic member 145 installed on the functional component 14 improved, but the force applied to the elastic member 145 is also made more stable. The elastic member 145 can be, but is not limited to, a spring or a sheet spring.

[0066] In some embodiments, the purging member 142 includes a connecting shaft 1421 and at least two fan blades 1422 disposed on the outer periphery of the connecting shaft 1421. One end of the connecting shaft 1421 away from the fan blades 1422 is connected to the drive assembly 141.

[0067] The number of fan blades 1422 may be, but is not limited to, two, three, or more than four. The fan blades 1422 are detachably or fixedly connected to the outer periphery of the connecting shaft 1421. The end of the connecting shaft 1421 away from the fan blades 1422 is detachably or fixedly connected to the drive assembly 141. For example, the end of the connecting shaft 1421 away from the fan blades 1422 may be detachably or fixedly connected to the second functional component 1413. During the rotation of the second functional component 1413, at least two fan blades 1422 will rotate.

[0068] By including the connecting shaft 1421 and at least two fan blades 1422, the blowing component 142 can not only achieve high-speed rotation of the blowing component 142 to blow away dust from the filter element 12, but also has a simple structure and low cost.

[0069] In some embodiments, the connecting shaft 1421 is provided with an extension 1431, which is close to the filter element 12, and the extension 1431 is a striking element 143.

[0070] The blowing component 142 and the striking component 143 can be different parts, and are respectively located at different positions of the second functional component 1413. Alternatively, at least some parts of the blowing component and the striking component 143 can be shared.

[0071] In one specific embodiment, the connecting shaft 1421 is detachably or fixedly connected to the extension 1431. As in this embodiment, the connecting shaft 1421 and the extension 1431 are integrally formed. The extension 1431 is disposed near the filter element 12. In this case, the extension 1431 can be a striking element 143.

[0072] By simultaneously providing the fan blade 1422 and the extension 1431 on the connecting shaft 1421, the installation structure is simplified, and production costs are reduced.

[0073] In some embodiments, the orthographic projection of the filter element 12 onto the air intake 111 is located within the air intake 111.

[0074] The size of the filter element 12 can be smaller than or equal to the size of the air intake 111. In this embodiment, the size of the filter element 12 is close to the size of the air intake 111, and both the shape of the filter element 12 and the shape of the air intake 111 are square.

[0075] By limiting the size relationship between the filter element 12 and the air inlet 111, when the filter device 10 is self-cleaning, all the dust accumulated on the filter element 12 can fall out from the air inlet 111, thereby further improving the self-cleaning efficiency.

[0076] In some embodiments, the first functional component 1412 is provided with a first functional hole 14122. The first functional hole 14122 is hole-shaped. The drive shaft of the drive component 1411 and the first functional hole 14122 are not circumferentially engaged, so that the first drive component 1411 can drive the first functional component 1412 to rotate, reducing the risk of slippage, etc. Specifically, the cross-section of the drive shaft of the drive component 1411 is semi-circular. The first functional hole 14122 is semi-circular.

[0077] Please see Figure 11 , Figure 11 This is a second structural schematic diagram of an embodiment of the filtering device of this application. (In conjunction with...) Figures 1 to 10 In some embodiments, the filter device 10 includes at least two negative pressure elements 13. The first housing 11 is provided with at least two air outlets 112, and each air outlet 112 is provided with at least one negative pressure element 13.

[0078] The number of negative pressure components 13 may be, but is not limited to, two, three, or four or more. The number of air outlets 112 may be, but is not limited to, two, three, or four or more. The number of negative pressure components 13 and the number of air outlets 112 may be the same or different. Each air outlet 112 may have one, two, or three or more negative pressure components 13. In this embodiment, the number of negative pressure components 13 and the number of air outlets 112 are the same, and each air outlet 112 has one negative pressure component 13.

[0079] By combining the above-mentioned at least two negative pressure components 13 and at least two air outlets 112, filtration efficiency can be improved.

[0080] In some embodiments, functional component 14 includes a second housing 144. The second housing 144 is detachably connected to one side of the first housing 11 facing the filter element 12. The second housing 144 is located between the two air outlets 112 at the connection position of the first housing 11.

[0081] The second housing 144 may be connected to the side of the first housing 11 facing the filter element 12 by means of snap-fit, plug-in, or bolts, but is not limited to. The second housing 144 is located between the two air outlets 112 at the connection position of the first housing 11.

[0082] The second housing 144 is detachably connected to the first housing 11, facilitating the installation and replacement of the functional component 14. By limiting the installation position of the functional component 14 in the first housing 11 between the two air outlets 112, the self-cleaning efficiency of the filter element 12 can be improved.

[0083] The aforementioned multiple air outlets 112 may be located at different positions relative to the functional components 14 at the connection point with the first housing 11, which is not limited here.

[0084] In some embodiments, the filtration device 10 includes a filter support 16. A filter element 12 is disposed on the filter support 16, and the filter support 16 is detachably connected to the inner wall of the first housing 11.

[0085] The filter bracket 16 supports the filter element 12. The filter element 12 can be detachably or fixedly connected to the filter bracket 16, which is not limited here. The filter element 12 is supported and locked within the first housing 11 by the filter bracket 16. The filter bracket 16 can be connected to the inner wall of the first housing 11 by means of, but not limited to, snap-fit, plug-in, and bolts. In this embodiment, the filter bracket 16 is bolted to the inner wall of the first housing 11.

[0086] The filter bracket 16, filter element 12 and first housing 11 work together to improve the ease of disassembly and assembly of filter element 12, etc.

[0087] The filter element 12 is detachably connected to the filter support 16. When the filter element 12 needs to be replaced, it can be removed directly from the filter device 10; or, the filter support 16 can be removed from the filter device 10, and then the filter element 12 can be removed from the filter support 16, etc.

[0088] Continue reading Figures 1 to 11In certain specific working scenarios, the drive component 1411 rotates clockwise. Under the elastic force of the elastic component 145, the first wedge-shaped surface 14121a of the first wedge-shaped portion 14121 on the first functional component 1412 and the second wedge-shaped surface 14131a of the second wedge-shaped portion 14131 on the second functional component 1413 engage with each other, and the first wedge-shaped side surface 14121b and the second wedge-shaped side surface 14131b abut against each other. The drive component 1411 drives the first functional component 1412, the second functional component 1413, and the blowing component 142 to rotate synchronously. The blowing component 142 performs the dust removal operation.

[0089] The driving component 1411 rotates counterclockwise. The first wedge-shaped surface 14121a of the first wedge-shaped portion 14121 and the second wedge-shaped surface 14131a of the second wedge-shaped portion 14131 on the first functional component 1412 do not engage with each other at an angle, and the first wedge-shaped side surface 14121b and the second wedge-shaped side surface 14131b do not abut against each other. Due to the presence of the first wedge-shaped side surface 14121b and the second wedge-shaped side surface 14131b, under the action of the elastic component 145, the first wedge-shaped side surface 14121b and the second wedge-shaped side surface 14131b periodically increase in position, thereby causing the second functional component 1413 to periodically move up and down, so that the striking component 143 periodically and continuously taps up and down, which can effectively shake off the dust and dirt on the surface of the filter component 12 and realize the self-cleaning function of the filter component 12.

[0090] Continue reading Figures 1 to 11 This application provides a camera device. The camera device (not shown in the figure) includes a filter device 10 and a camera. The filter device 10 is disposed on the camera. The filter device 10 is capable of providing the camera with filtered air, etc. It should be noted that the filter device 10 in this embodiment is the filter device 10 described in the above embodiments, and will not be repeated here.

[0091] By using the above-mentioned filter device 10 in the camera device, the filter element 12 can be self-cleaned in both states of the functional component 14, which not only effectively extends the service life of the filter element 12, but also increases the maintenance cycle, thereby reducing maintenance costs.

[0092] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of those features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications will change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. A process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0093] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A filtration device, characterized in that, include: The first housing has a cavity for receiving an air inlet and an air outlet; The filter element is disposed within the receiving cavity and located between the air inlet and the air outlet; A negative pressure element is disposed in the receiving cavity and located between the filter element and the air outlet; A functional component is disposed in the receiving cavity and located on the side of the filter element away from the air intake. The functional component has a first state and a second state. In the first state, the functional component blows the filter element. In the second state, the functional component taps the filter element. The functional components include a drive component, a blowing component, and a striking component, wherein the drive component is connected to the blowing component and the striking component; in the first state, the drive component drives the blowing component to blow the filter element. In the second state, the drive component drives the striking element to strike the filter element; The drive assembly includes a drive component, a first functional component, and a second functional component. The drive component drives the first functional component to be releasably locked relative to the second functional component. The blowing component and the striking component are both connected to the second functional component. When the drive unit rotates clockwise, the first functional unit and the second functional unit lock and drive the purging unit; When the driving member rotates counterclockwise, the first functional member and the second functional member unlock and drive the striking member; The functional components include a second housing and an elastic element. The driving element, the first functional element, the second functional element, and the elastic element are all located inside the second housing, while the blowing element and the striking element are located outside the second housing. The first functional component has a first wedge-shaped portion on one side facing the second functional component, and the second functional component has a second wedge-shaped portion on one side facing the first functional component; When the first wedge and the second wedge are locked, the elastic member abuts against the second functional member; when the first wedge and the second wedge are unlocked, the elastic member is reciprocally compressed and reciprocally acts on the striking member.

2. The filtration device according to claim 1, characterized in that, The first wedge-shaped portion includes a first wedge-shaped surface and a first wedge-shaped side surface. The height of the orthographic projection of the first wedge-shaped surface on the first functional component gradually increases in a clockwise direction and is distributed in a ring shape. The second wedge-shaped portion includes a second wedge-shaped surface and a second wedge-shaped side surface. The height of the orthographic projection of the second wedge-shaped surface on the second functional component gradually decreases in a clockwise direction and is distributed in a ring shape. The first wedge surface and the second wedge surface are releasably inclined, and the first wedge side surface and the second wedge side surface are releasably abutting.

3. The filtration device according to claim 2, characterized in that, The second functional component includes a first sub-functional part and a second sub-functional part connected to the first sub-functional part. The second wedge-shaped part is disposed on a side of the first sub-functional part away from the second sub-functional part. The elastic member is sleeved on the outer periphery of the second sub-functional part, and the two ends of the elastic member are connected between the first sub-functional part and the bottom of the second housing.

4. The filtration device according to claim 1, characterized in that, The purging component includes a connecting shaft and at least two fan blades disposed on the outer periphery of the connecting shaft, with the end of the connecting shaft away from the fan blades connected to the drive assembly.

5. The filtration device according to claim 4, characterized in that, The connecting shaft is provided with an extension, which is close to the filter element and is the striking element.

6. The filtration device according to claim 1, characterized in that, The orthogonal projection of the filter element onto the air intake is located within the air intake.

7. The filtration device according to claim 1, characterized in that, The filtration device includes at least two negative pressure components, and the first housing is provided with at least two air outlets, with at least one negative pressure component provided at each air outlet.

8. The filtration device according to claim 7, characterized in that, The second housing is detachably connected to one side of the first housing facing the filter element, and the connection position of the second housing on the first housing is located between the two air outlets.

9. A camera device, characterized in that, include: Camera; The filtering device according to any one of claims 1 to 8, wherein the filtering device is disposed on the camera.

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