Heating and ventilation device with filtering structure
By designing internal and external filters and an elastic sealing mechanism, the HVAC system solves the maintenance problems caused by the complex filtration structure, achieving convenient maintenance and efficient air purification, extending equipment life, and improving air quality and stability.
Patent Information
- Application Number
- CN202520526576.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The existing HVAC systems have complex filter structures that are difficult to replace and maintain, resulting in high maintenance difficulty and affecting air purification efficiency and equipment lifespan.
A heating, ventilation and air conditioning device including a ventilation duct, mounting base, filter structure, top cover, threaded sleeve, elastic sealing mechanism, sealing components and spiral flow guide structure is designed. It adopts a dual filtration design with internal and external filters. The elastic sealing mechanism provides uniform pressure through elastic deformation and dynamically adjusts the seal. The slide rod guide structure adapts to temperature changes to ensure sealing reliability and filter structure stability.
It enables convenient filter replacement and maintenance, improves air purification effect, extends equipment life, reduces the impact of seal leakage and vibration, and ensures air quality and equipment stability.
Smart Images
Figure CN223855847U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to heating ventilation technical field, especially a kind of heating ventilation device with filter structure. BACKGROUND
[0002] Heating system is an indispensable part of building, covering three aspects of heating, ventilation and air conditioning. Among them, ventilation device plays a crucial role. Common ventilation device introduces external fresh air, and after a series of purification and filtration treatment, clean air is delivered to indoor environment. This process not only effectively improves indoor air quality, but also creates a comfortable living space for occupants. However, over time, the components responsible for purifying and filtering air will accumulate a lot of dust and particulate matter. If not cleaned and maintained in time, these accumulated dust may significantly reduce the purification effect of the filter, affecting the quality of indoor air. Therefore, regular inspection and cleaning of these filter components is a key step to ensure efficient operation of the system. This maintenance not only prolongs the service life of the equipment, but also ensures the health and comfort of indoor environment. Since the filter structure of the ventilation device in the related art is too complex to replace, it leads to the problem of difficult maintenance. SUMMARY
[0003] Therefore, the utility model aims to solve at least one of the problems in the related art to some extent.
[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0005] A kind of heating ventilation device with filter structure, including ventilation duct, installation base, filter structure, top cover, mounting structure, threaded sleeve, elastic sealing mechanism, sealing assembly and two spiral flow guide structures;
[0006] The left and right ends of the ventilation duct are provided with a flange plate, and the two spiral flow guide structures are symmetrically arranged on the inner wall of the ventilation duct.
[0007] The installation base is arranged on the outer wall of the middle part of the ventilation duct, the threaded sleeve is arranged on the installation base, the threaded sleeve is communicated with the inside of the ventilation duct, the bottom of the elastic sealing mechanism is connected with the installation base, the top of the elastic sealing mechanism is matched with the bottom of the top cover, the inner wall of the top cover is threadedly matched with the threaded sleeve, the sealing assembly is arranged on the bottom of the threaded sleeve, and the sealing assembly is used to seal the gap between the threaded sleeve and the top cover.
[0008] The top of the filtering structure is connected with the top cover, and the bottom of the filtering structure is vertically arranged in the ventilation duct, the filtering structure is a cylindrical structure, the ventilation duct is internally provided with a first stop block and two second stop blocks, the two second stop blocks are symmetrically arranged on the front and rear sides of the bottom of the filtering structure, and the first stop block is located below the filtering structure, and the first stop block and the second stop blocks are used for plugging the gap between the bottom of the filtering structure and the ventilation duct.
[0009] The mounting structure is arranged on the upper end surface of the top cover.
[0010] Further, the elastic sealing mechanism comprises an annular bottom plate, an annular top plate, an annular pressing plate, a first sealing gasket, a second sealing gasket and a plurality of elastic pressing assemblies, the annular bottom plate is arranged on the outer wall of the mounting base, the annular top plate is arranged on the outer wall of the bottom of the top cover, the annular pressing plate is connected with the annular bottom plate through a plurality of elastic pressing assemblies, the first sealing gasket is arranged on the upper end surface of the annular pressing plate, the second sealing gasket is arranged on the lower end surface of the annular top plate, the cross sections of the first sealing gasket and the second sealing gasket are both L-shaped, and the first sealing gasket and the second sealing gasket are matched with each other.
[0011] Further, the elastic pressing assembly comprises a compression spring, a sliding rod and a limiting block, the top of the sliding rod is connected with the annular top plate, the bottom of the sliding rod penetrates through the annular bottom plate, and the limiting block is arranged on the bottom of the sliding rod.
[0012] Further, the sealing assembly comprises a plurality of O-shaped rings, and the plurality of O-shaped rings are arranged on the bottom of the threaded sleeve.
[0013] Further, the filtering structure comprises an inner filtering net, an outer filtering net and a mounting sleeve, the top of the mounting sleeve is fixedly connected with the top cover, the inner wall of the bottom of the mounting sleeve is detachably connected with the inner filtering net, and the outer wall of the bottom of the mounting sleeve is detachably connected with the outer filtering net.
[0014] Further, the mounting structure comprises an outer hexagonal head and a U-shaped screw head, the outer hexagonal head is arranged on the upper end surface of the top cover, and the U-shaped screw head is arranged on the upper end surface of the outer hexagonal head.
[0015] Further, a plurality of rib plates are arranged at the connection position of the flange plate and the ventilation duct.
[0016] Further, the spiral flow guide structure comprises a plurality of spiral blades, and the plurality of spiral blades are circumferentially arranged on the inner wall of the ventilation duct.
[0017] Compared with the prior art, the ventilation device with the filtering structure has the following advantages:
[0018] 1、Through the elastic deformation of the compression spring, uniform pressure is continuously provided, and wear or deformation of the sealing gasket caused by material aging, vibration or temperature change is automatically compensated. The dynamic adjustment capability avoids the leakage problem caused by pressure relaxation of the traditional fixed seal after long-term use. The first sealing gasket and the second sealing gasket adopt an L-shaped cross-section design, forming a multi-directional contact surface, which produces a tighter deformation under the spring pressure, effectively filling the microscopic gap and improving the sealing reliability. The spring assembly not only provides pressure, but also absorbs the vibration energy caused by the airflow in the pipeline or the external environment, reduces the impact on the sealing interface, and prevents sealing failure caused by vibration. The slide bar guide structure allows the annular pressing plate to have a small displacement in the vertical direction, and cooperates with the elasticity of the spring to adapt to the thermal expansion difference of metal parts at different temperatures, and avoids cracking of the sealing structure due to thermal stress deformation.
[0019] 2、The double-filter design of the inner filter screen and the outer filter screen can effectively intercept particulate matter, dust and impurities in the air, and provide clean air. The inner and outer filter screens are detachably connected with the mounting sleeve, which facilitates regular cleaning or replacement of the filter screen, is simple and convenient to maintain, improves the service life and efficiency. The filter structure adopts a cylindrical design, which helps to ensure that the airflow uniformly passes through the entire filter screen surface, improves the filtering effect, and reduces air resistance. Through the stable connection of the top and the top cover, the filter structure remains stable during operation and is not easy to be displaced or damaged due to vibration or airflow impact. BRIEF DESCRIPTION OF DRAWINGS
[0020] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings are presented by way of example or for purpose of explanation only. They are not limiting of the present application. In the drawings:
[0021] Figure 1 A schematic view of a heating ventilation and air conditioning device with a filter structure according to an embodiment of the present application;
[0022] Figure 2 A schematic view of an elastic sealing mechanism according to an embodiment of the present application;
[0023] Figure 3 A schematic view of a filter structure and a spiral flow guide structure according to an embodiment of the present application;
[0024] Figure 4 A schematic view of an elastic assembly structure according to an embodiment of the present application;
[0025] Figure 5 A schematic view of a first stop block and a second stop block structure according to an embodiment of the present application.
[0026] BRIEF DESCRIPTION OF DRAWINGS
[0027] 101, ventilation duct; 102, flange plate; 201, top cover; 202, annular top plate; 300, elastic pressing assembly; 310, annular pressing plate; 320, first sealing gasket; 330, second sealing gasket; 401, mounting base; 402, annular bottom plate; 403, threaded sleeve; 501, outer hexagonal head; 502, U-shaped screw head; 600, mounting sleeve; 710, inner filter screen; 720, outer filter screen; 800, helical flow guide structure; 910, second stop block; 920, first stop block. DETAILED DESCRIPTION
[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0030] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.
[0031] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0032] A heating ventilation and air conditioning device with a filtering structure, comprising a ventilation duct, a flange plate, a top cover, an annular top plate, an elastic pressing assembly, an annular pressing plate, a first sealing gasket, a second sealing gasket, a mounting base, an annular bottom plate, a threaded sleeve, an outer hexagonal head, a U-shaped screw head, a mounting sleeve, an inner filter screen, an outer filter screen, a helical flow guide structure, a second stop block and a first stop block. Figure 1As shown, it comprises a ventilation duct 101, a mounting base 401, a filter structure, a top cover 201, a mounting structure, a threaded sleeve 403, an elastic sealing mechanism, a sealing assembly and two spiral guide structures 800; each of the left and right ends of the ventilation duct 101 is provided with a flange plate 102, and the two spiral guide structures 800 are symmetrically arranged on the inner wall of the ventilation duct 101.
[0033] The mounting base 401 is arranged in the middle of the outer wall of the ventilation duct 101, the threaded sleeve 403 is arranged on the mounting base 401, the threaded sleeve 403 is in communication with the inside of the ventilation duct 101, the bottom of the elastic sealing mechanism is connected with the mounting base 401, the top of the elastic sealing mechanism is matched with the bottom of the top cover 201, the inner wall of the top cover 201 is threadedly matched with the threaded sleeve 403, the sealing assembly is arranged at the bottom of the threaded sleeve 403, and the sealing assembly is used for sealing the gap between the threaded sleeve 403 and the top cover 201; the sealing assembly comprises a plurality of O-rings arranged at the bottom of the threaded sleeve 403.
[0034] The top of the filter structure is connected with the top cover 201, and the bottom of the filter structure is vertically arranged in the ventilation duct 101; the filter structure is a cylindrical structure, the inside of the ventilation duct 101 is provided with a first stopper 920 and two second stoppers 910, the two second stoppers 910 are symmetrically arranged on the front and back of the bottom of the filter structure, and the first stopper 920 is located below the filter structure; the first stopper 920 and the second stopper 910 are both used for plugging the gap between the bottom of the filter structure and the ventilation duct 101; the double-filter design of the inner filter screen 710 and the outer filter screen 720 can effectively intercept particulate matters, dust and impurities in the air, and provide clean air; the inner and outer filter screens 720 and the mounting sleeve 600 are detachably connected, which facilitates regular cleaning or replacement of the filter screen, is simple and convenient to maintain, prolongs the service life and improves the efficiency; the filter structure adopts a cylindrical design, which helps to ensure that the airflow uniformly passes through the entire filter screen surface, improves the filtering effect, and reduces air resistance; through the stable connection with the top cover 201, the filter structure remains stable during operation and is not easy to be displaced or damaged due to vibration or airflow impact.
[0035] The mounting structure is arranged on the upper end surface of the top cover 201. The mounting structure comprises an outer hexagonal head 501 and a U-shaped head 502, the outer hexagonal head 501 is arranged on the upper end surface of the top cover 201, and the U-shaped head 502 is arranged on the upper end surface of the outer hexagonal head 501. The position where the flange plate 102 is connected with the ventilation duct 101 is provided with a plurality of rib plates.
[0036] The elastic sealing mechanism comprises a ring-shaped bottom plate 402, a ring-shaped top plate 202, a ring-shaped pressing plate 310, a first sealing gasket 320, a second sealing gasket 330 and a plurality of elastic pressing assemblies 300, the ring-shaped bottom plate 402 is arranged on the outer wall of the mounting base 401, the ring-shaped top plate 202 is arranged on the outer wall of the bottom of the top cover 201, the ring-shaped pressing plate 310 is connected with the ring-shaped bottom plate 402 through the plurality of elastic pressing assemblies 300, the first sealing gasket 320 is arranged on the upper end surface of the ring-shaped pressing plate 310, the second sealing gasket 330 is arranged on the lower end surface of the ring-shaped top plate 202, the cross sections of the first sealing gasket 320 and the second sealing gasket 330 are both L-shaped, and the first sealing gasket 320 and the second sealing gasket 330 are matched with each other. Through the elastic deformation of the compression spring, uniform pressure is continuously provided, and the wear or deformation of the sealing gasket caused by material aging, vibration or temperature change is automatically compensated. The dynamic adjustment capability avoids the leakage problem caused by the relaxation of the pressure of the traditional fixed sealing after long-term use. The first sealing gasket 320 and the second sealing gasket 330 adopt the L-shaped cross section design, form a multi-directional contact surface, generate a tighter deformation under the spring pressure, effectively fill the micro gaps, and improve the sealing reliability. The spring assembly not only provides pressure, but also can absorb the vibration energy caused by the airflow in the pipeline or the external environment, reduce the impact on the sealing interface, and prevent the sealing failure caused by vibration. The slide rod guide structure allows the ring-shaped pressing plate 310 to be slightly displaced in the vertical direction, cooperates with the elasticity of the spring, adapts to the thermal expansion difference of the metal parts at different temperatures, and avoids the cracking of the sealing structure caused by thermal stress deformation. The elastic pressing assembly 300 comprises a compression spring, a slide rod and a limiting block, the top of the slide rod is connected with the ring-shaped top plate 202, the bottom of the slide rod penetrates through the ring-shaped bottom plate 402, and the limiting block is arranged at the bottom of the slide rod.
[0037] The filtering structure comprises an inner filter screen 710, an outer filter screen 720 and a mounting sleeve 600, the top of the mounting sleeve 600 is integrally connected with the top cover 201, the inner wall of the bottom of the mounting sleeve 600 is connected with the inner filter screen 710 through a pin, and the outer wall of the bottom of the mounting sleeve 600 is connected with the outer filter screen 720 through a pin. The spiral flow guide structure 800 comprises a plurality of spiral blades, and the plurality of spiral blades are circumferentially arranged in the inner wall of the ventilation pipeline 101.
[0038] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A heating, ventilation and air conditioning device having a filter structure, characterized by: The utility model provides a ventilation pipeline (101), mounting base (401), filter structure, top cover (201), mounting structure, threaded sleeve (403), elastic sealing mechanism, sealing assembly and two spiral guide structures (800) are included. The left and right ends of the ventilation pipeline (101) are provided with a flange plate (102), and the two spiral guide structures (800) are symmetrically arranged on the inner wall of the ventilation pipeline (101). The mounting base (401) is arranged on the outer wall of the middle part of the ventilation pipeline (101), the threaded sleeve (403) is arranged on the mounting base (401), the threaded sleeve (403) is in communication with the inside of the ventilation pipeline (101), the bottom of the elastic sealing mechanism is connected with the mounting base (401), the top of the elastic sealing mechanism is matched with the bottom of the top cover (201), the inner wall of the top cover (201) is screwed with the threaded sleeve (403), the sealing assembly is arranged at the bottom of the threaded sleeve (403), and the sealing assembly is used for sealing the gap between the threaded sleeve (403) and the top cover (201). The top of the filter structure is connected with the top cover (201), the bottom of the filter structure is vertically arranged in the ventilation pipeline (101), the filter structure is a cylindrical structure, the inside of the ventilation pipeline (101) is provided with a first stop block (920) and two second stop blocks (910), the two second stop blocks (910) are symmetrically arranged on the front and back sides of the bottom of the filter structure, the first stop block (920) is located below the filter structure, and the first stop block (920) and the second stop block (910) are used for plugging the gap between the bottom of the filter structure and the ventilation pipeline (101). The mounting structure is arranged on the upper end surface of the top cover (201).
2. The heating, ventilation and air conditioning device with a filter structure according to claim 1, characterized in that: The elastic sealing mechanism comprises an annular bottom plate (402), an annular top plate (202), an annular pressing plate (310), a first sealing gasket (320), a second sealing gasket (330) and a plurality of elastic pressing assemblies (300), the annular bottom plate (402) is arranged on the outer wall of the mounting base (401), the annular top plate (202) is arranged on the outer wall of the bottom of the top cover (201), the annular pressing plate (310) is connected with the annular bottom plate (402) through a plurality of elastic pressing assemblies (300), the first sealing gasket (320) is arranged on the upper end surface of the annular pressing plate (310), the second sealing gasket (330) is arranged on the lower end surface of the annular top plate (202), the cross sections of the first sealing gasket (320) and the second sealing gasket (330) are L-shaped, and the first sealing gasket (320) and the second sealing gasket (330) are matched with each other.
3. The heating, ventilation and air conditioning device with a filter structure according to claim 2, characterized in that: The elastic pressing assembly (300) comprises a compression spring, a sliding rod and a limiting block, the top of the sliding rod is connected with the annular top plate (202), the bottom of the sliding rod penetrates through the annular bottom plate (402), and the limiting block is arranged at the bottom of the sliding rod.
4. The heating, ventilation and air conditioning device with a filter structure according to claim 2, characterized in that: The sealing assembly comprises a plurality of O-shaped rings, and the plurality of O-shaped rings are arranged at the bottom of the threaded sleeve (403).
5. A heating, ventilation and air conditioning device having a filter structure according to any one of claims 1 to 4, characterized in that: The filter structure comprises an inner filter screen (710), an outer filter screen (720), and a mounting sleeve (600), the top of the mounting sleeve (600) is fixedly connected with the top cover (201), the inner wall of the bottom of the mounting sleeve (600) is detachably connected with the inner filter screen (710), and the outer wall of the bottom of the mounting sleeve (600) is detachably connected with the outer filter screen (720).
6. The heating, ventilation and air conditioning device with a filter structure according to claim 5, characterized in that: The mounting structure comprises an outer hex head (501) and a U-shaped screw head (502), the outer hex head (501) is arranged on the upper end face of the top cover (201), and the U-shaped screw head (502) is arranged on the upper end face of the outer hex head (501).
7. The heating, ventilation and air conditioning device having a filter structure according to claim 5, wherein: A plurality of rib plates are arranged at the connection position of the flange plate (102) and the ventilation duct (101).
8. The heating, ventilation and air conditioning device with a filter structure according to claim 5, characterized in that: The spiral flow guide structure (800) comprises a plurality of spiral blades, and the plurality of spiral blades are arranged in the circumferential direction on the inner wall of the ventilation duct (101).