Coaxial filtering smoke tube device for wall-hanging stove

Abstract

The utility model relates to a coaxial filtering smoke pipe device for a wall-hanging stove, and relates to the field of smoke pipes for wall-hanging stoves. The smoke pipe comprises a coaxial inner pipe, the middle of the outer side face of the coaxial inner pipe is fixedly sleeved with a smoke pipe body, the outer side face of the smoke pipe body is fixedly sleeved with an outer sleeve shell, the outer sleeve shell is provided with a turnover access cover, a detachable filter is installed between the smoke pipe body and the outer sleeve shell, and the filter comprises a main filter screen set and a connecting plate. The device is designed to be of a structure in which the coaxial inner pipe, the smoke pipe body and the outer sleeve shell are matched with one another, so that smoke can be stably discharged to the filter through the first discharge flue and the second discharge flue during use, and the filter is designed to be of a structure in which the main filter screen group and the main filter screen group are matched with one another; it is guaranteed that the filter can be inserted into the outer side face of the smoke pipe body for filtering operation during use, the filter can be directly pulled out when cleaning is needed, and operation is very convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flue pipes for wall-mounted furnaces, in particular to a coaxial filtering flue pipe device for wall-mounted furnaces. BACKGROUND

[0002] At present, due to the improvement of flue gas emission standards and energy efficiency standards, most wall-mounted furnaces in China are developed and sold as full premix condensing wall-mounted furnaces. Since the air required for full premix combustion needs to enter the combustion chamber through a fan, dust in the air is easy to accumulate in the fan impeller and the burner, affecting the safe operation of the wall-mounted furnace. Therefore, an air filter needs to be added at the air inlet.

[0003] The existing Chinese patent with publication number CN212619358U discloses an external filter, which includes an inner pipe, a first outer pipe sleeved on the outer side of the inner pipe, and a second outer pipe sleeved on the outer side of the first outer pipe. The inner pipe is provided with a first air channel; a first air cavity is formed between the inner wall of the first outer pipe and the outer wall of the inner pipe; the side wall of the first outer pipe is provided with a detachable filter element; a second air cavity is formed between the inner wall of the second outer pipe and the outer wall of the first outer pipe; the side wall of the second outer pipe is provided with a movable outer cover; and the movable outer cover is used for the user to take out the filter element.

[0004] In view of the related technology in the above, it is found that the flue pipe for wall-mounted furnaces is difficult to clean after a long time of filtering. The flue pipe needs to be disassembled for cleaning, which is relatively cumbersome. If not cleaned in time, internal dust will continue to accumulate, thereby affecting the normal use of the flue pipe. CONTENT OF THE UTILITY MODEL

[0005] In order to facilitate the cleaning of the internal dust of the flue pipe, the present application provides a coaxial filtering flue pipe device for wall-mounted furnaces.

[0006] The coaxial filtering flue pipe device for wall-mounted furnaces provided by the present application adopts the following technical scheme:

[0007] A coaxial filtering flue pipe device for wall-mounted furnaces, which comprises a coaxial inner pipe, a flue pipe body is fixedly sleeved in the middle of the outer side of the coaxial inner pipe, an outer sleeve shell is fixedly sleeved on the outer side of the flue pipe body, a reversible maintenance cover is installed on the outer sleeve shell, a detachable filter is installed between the flue pipe body and the outer sleeve shell, the filter comprises a main filter screen group and a connecting plate, the connecting plate is installed at one end of the main filter screen group, and the connecting plate is fixedly connected with the main filter screen group in a clamping manner.

[0008] By adopting the technical scheme, the fixed smoke pipe body is sleeved on the outer side of the coaxial inner pipe, the filter is supported by the smoke pipe body, the filter can be stably installed for filtering operation, the outer sleeve shell is sleeved on the outer side of the smoke pipe body, the smoke can be stably discharged between the coaxial inner pipe and the outer sleeve shell, the smoke enters between one end of the coaxial inner pipe and the outer sleeve shell, then is filtered by the filter on the smoke pipe body, the filtered smoke can pass through the smoke pipe body and enter between the smoke pipe body and the coaxial inner pipe, and finally is discharged from the gap between the other end of the outer sleeve shell and the coaxial inner pipe, and the filter is designed as a structure matched with the main filter screen group and the connecting plate, the connecting plate can be fixed and installed at one end of the main filter screen group during use, then the main filter screen group is inserted into the smoke pipe body, stable insertion and installation are realized, and the filter can be directly pulled out and disassembled during cleaning, so that the filter is very convenient to use.

[0009] Optionally, the outer sleeve shell comprises a middle shell, a left side shell and a right side shell, the left side shell and the right side shell are installed at two ends of the middle shell, and the left side shell and the right side shell are fixedly connected with the middle shell.

[0010] By adopting the technical scheme, the outer sleeve shell is designed as a three-part structure of the middle shell, the left side shell and the right side shell, the left side shell and the right side shell are matched with the coaxial inner pipe to serve as the part for the smoke to enter the smoke pipe during use, the right side shell and the coaxial inner pipe are matched to serve as the part for the smoke to be discharged, and the middle shell serves as the main structure of the device and is sleeved outside the smoke pipe body for protection.

[0011] Optionally, a positioning side slot for installing an inspection cover is formed in the outer side of the middle shell, and a first smoke discharge channel is arranged between the middle shell and the smoke pipe body, and a second smoke discharge channel is formed between the left side shell and the coaxial inner pipe and is connected with the first smoke discharge channel.

[0012] By adopting the technical scheme, the positioning side slot is formed in the outer side of the middle shell, so that the inspection cover can be installed in the positioning side slot during use, the inspection cover can be opened by turning over when the filter needs to be cleaned, the filter can be stably pulled out through the positioning side slot, and the filter is very convenient to use without being disassembled from the smoke pipe. The second smoke discharge channel is arranged between the left side shell and the coaxial inner pipe to ensure that the smoke can stably enter the equipment, and the first smoke discharge channel is arranged between the middle shell and the smoke pipe body to ensure that the entering smoke can stably enter the filter, so that the filter can better perform the filtering operation.

[0013] Optionally, two groups of pressing rings for pressing the edges of the filter are symmetrically arranged in the first smoke discharge channel, and an installation slot for installing the filter is formed in the pressing ring.

[0014] By adopting the technical scheme, two groups of pressing rings are symmetrically arranged in the first flue, so that the filter can be directly inserted between the pressing rings and the flue body when the filter needs to be installed, and then the two sides of the filter are pressed and fixed by the pressing rings, so that the filter can be stably installed and used in the equipment.

[0015] Optionally, the main filter screen group comprises a middle filter screen and side frames, the side frames are symmetrically installed on the two sides of the middle filter screen, and the side frames are fixedly connected with the middle filter screen.

[0016] By adopting the technical scheme, the main filter screen group is designed as a structure in which the middle filter screen cooperates with the side frames, so that the two sides of the middle filter screen can be clamped and fixed by the two groups of side frames when in use, thereby facilitating the plug-in installation and use of the main filter screen group.

[0017] Optionally, the connecting plate comprises a middle plate and support strips, the support strips are symmetrically installed on the two sides of the middle plate, and the support strips are fixedly connected with the middle plate.

[0018] By adopting the technical scheme, the connecting plate is designed as a structure in which the middle plate cooperates with the support strips, so that the two groups of support strips can be fixed and installed by the middle plate when in use, thereby supporting the side frames at the two ends when the connecting plate is fixed and installed on the main filter screen group, so that the use of the main filter screen group is more stable.

[0019] Optionally, limit clamping blocks are arranged on the two sides of the middle plate, the limit clamping blocks are integrally formed with the middle plate, and the head of the side frame is provided with a positioning clamping groove matched with the limit clamping block.

[0020] By adopting the technical scheme, the limit clamping blocks are arranged on the two sides of the middle plate, so that the limit clamping blocks can be stably installed in the positioning clamping groove formed in the head of the side frame when in use, thereby stably fixing and installing the connecting plate on the main filter screen group, and when the main filter screen group is pulled out and disassembled, the connecting plate can be used for shielding, thereby effectively preventing the falling of dust on the filter screen during the pulling out of the main filter screen group, and achieving better cleaning effect.

[0021] Optionally, the maintenance cover comprises an arc-shaped cover plate and a maintenance lock buckle, one end of the arc-shaped cover plate is rotatably connected with the middle shell, and the maintenance lock buckle is fixedly installed at the other end of the arc-shaped cover plate.

[0022] By adopting the technical scheme, the maintenance cover is designed as a structure in which the arc-shaped cover plate cooperates with the maintenance lock buckle, so that the arc-shaped cover plate can be locked with the middle shell by the maintenance lock buckle when in use, thereby stably installing and using the arc-shaped cover plate in the positioning side groove.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: the present application is designed to cooperate with the structure of the coaxial inner tube, the smoke pipe body and the outer shell, so that the smoke can be stably discharged to the filter through the first and second smoke exhaust channels during use, and the filter is designed to cooperate with the main filter screen group and the connecting structure, so that the filter can be inserted on the outer side of the smoke pipe body for filtering operation during use, and can be directly pulled out for cleaning, which is very convenient to operate, and has the advantages of easy and stable filtering of smoke dust and convenient and fast disassembly and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the overall structure in the embodiment of the present application.

[0025] Figure 2 is a sectional view of the device shown. Figure 1

[0026] Figure 3 is a perspective view of the filter when it is unfolded in the embodiment of the present application.

[0027] Figure 4 is a perspective view of the device shown when the filter is not installed. Figure 1

[0028] Figure 5 is a partial enlarged view of device A. Figure 3

[0029] Figure 6 is a perspective view of the filter when it is rolled up in the embodiment of the present application.

[0030] Figure 7 is a perspective view of the connecting plate in the embodiment of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS: 1, coaxial inner tube; 11, second smoke exhaust channel; 2, smoke pipe body; 21, first smoke exhaust channel; 3, outer shell; 31, middle shell; 311, positioning side groove; 32, left side shell; 33, right side shell; 4, maintenance cover; 41, arc-shaped cover plate; 42, maintenance lock buckle; 5, filter; 51, main filter screen group; 511, middle filter screen; 512, side frame; 513, positioning clamping groove; 52, connecting plate; 521, middle plate; 522, support strip; 523, limiting clamp block; 6, pressing ring; 61, mounting groove. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below in conjunction with the drawings.

[0033] The embodiment of the present application discloses a coaxial filter smoke pipe device for wall-mounted stove. Referring to Figure 1 , Figure 2 and​​​Figure 3 As shown, a wall-mounted stove coaxial filter smoke pipe device, comprising a coaxial inner tube 1, the outer side of the coaxial inner tube 1 is sleeved with a smoke pipe body 2, the outer side of the smoke pipe body 2 is sleeved with an outer sleeve 3, the outer sleeve 3 is installed with a reversible maintenance cover 4, a detachable filter 5 is installed between the smoke pipe body 2 and the outer sleeve 3, the filter 5 comprises a main filter screen group 51 and a connecting plate 52, the connecting plate 52 is installed at one end of the main filter screen group 51, and the connecting plate 52 is fixedly connected with the main filter screen group 51. By sleeving the smoke pipe body 2 on the outer side of the coaxial inner tube 1, the filter 5 is supported by the arrangement of the smoke pipe body 2, ensuring that the filter 5 can be stably installed for filtering operation, and by sleeving the outer sleeve 3 on the outer side of the smoke pipe body 2, the smoke can be stably discharged between the coaxial inner tube 1 and the outer sleeve 3, the smoke enters between one end of the coaxial inner tube 1 and the outer sleeve 3, then the filter 5 on the smoke pipe body 2 filters the smoke, the filtered smoke can pass through the smoke pipe body 2 into the space between the smoke pipe body 2 and the coaxial inner tube 1, and finally discharged from the gap between the other end of the outer sleeve 3 and the coaxial inner tube 1, and by designing the filter 5 as a structure of the main filter screen group 51 and the connecting plate 52, the connecting plate 52 can be fixedly installed at one end of the main filter screen group 51 when used, then the main filter screen group 51 can be installed at one end of the connecting plate 52 and inserted into the smoke pipe body 2, realizing stable plug-in installation and use, and when cleaning is needed, the filter 5 can be directly pulled out and disassembled, which is very convenient to use.

[0034] Referring to Figure 2As shown, the outer shell 3 comprises a middle shell 31, a left side shell 32 and a right side shell 33, the left side shell 32 and the right side shell 33 are installed at both ends of the middle shell 31, and the left side shell 32 and the right side shell 33 are fixedly connected with the middle shell 31. By designing the outer shell 3 as a three-part structure of the middle shell 31, the left side shell 32 and the right side shell 33, it is ensured that the left side shell 32 can be used as a part of the flue gas entering the flue pipe by cooperating with the coaxial inner pipe 1, and the right side shell 33 can be used as a part of flue gas discharge by cooperating with the coaxial inner pipe 1, and the middle shell 31 is provided to ensure that it serves as the main structure of the device and is set outside the flue pipe body 2 for protection. The outer side of the middle shell 31 is provided with a positioning side groove 311 for installing the maintenance cover 4, and the middle shell 31 and the flue pipe body 2 are provided with a first flue 21, and the left side shell 32 and the coaxial inner pipe 1 form a second flue 11 connected with the first flue 21. By providing the positioning side groove 311 on the outer side of the middle shell 31, the maintenance cover 4 can be installed in the positioning side groove 311 during use, so that the maintenance cover 4 can be opened by turning over when the filter 5 needs to be cleaned, and the filter 5 can be stably pulled out through the positioning side groove 311, which is very convenient to use without the need to disassemble the flue pipe. By providing the second flue 11 between the left side shell 32 and the coaxial inner pipe 1, it is ensured that the flue gas can stably enter the equipment, and by providing the first flue 21 between the middle shell 31 and the flue pipe body 2, it is ensured that the entering flue gas can stably enter the filter 5, thereby ensuring better filtering operation through the filter 5.

[0035] Referring to Figure 4 As shown, the first flue 21 is provided with two groups of pressing rings 6 symmetrically arranged to press the edges of the filter 5, and the pressing rings 6 are provided with installation grooves 61 for installing the filter 5. By providing two groups of pressing rings 6 symmetrically in the first flue 21, it is ensured that the filter 5 can be directly inserted between the pressing rings 6 and the flue pipe body 2 when it needs to be installed, and then the filter 5 can be fixed by pressing the two edges through the pressing rings 6, thereby ensuring that the filter 5 can be stably installed and used in the equipment.

[0036] Referring to Figure 1 As shown, the maintenance cover 4 comprises an arc-shaped cover plate 41 and a maintenance lock buckle 42, one end of the arc-shaped cover plate 41 is rotatably connected with the middle shell 31, and the other end of the arc-shaped cover plate 41 is fixedly installed with the maintenance lock buckle 42. By designing the maintenance cover 4 as a structure cooperated with the arc-shaped cover plate 41 and the maintenance lock buckle 42, the arc-shaped cover plate 41 can be locked with the middle shell 31 through the maintenance lock buckle 42 during use, thereby ensuring that the arc-shaped cover plate 41 can be stably installed in the positioning side groove 311.

[0037] Referring to Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the main filter screen group 51 comprises a middle filter screen 511 and side frames 512, the side frames 512 are symmetrically installed on both sides of the middle filter screen 511, and the side frames 512 are fixedly connected with the middle filter screen 511. By designing the main filter screen group 51 as a structure that the middle filter screen 511 and the side frames 512 cooperate with each other, the middle filter screen 511 can be clamped and fixed on both sides by the two groups of side frames 512 when in use, so that the main filter screen group 51 can be better inserted and installed for use. The connecting plate 52 comprises a middle plate 521 and support bars 522, the support bars 522 are symmetrically installed on both sides of the middle plate 521, and the support bars 522 are fixedly connected with the middle plate 521. By designing the connecting plate 52 as a structure that the middle plate 521 and the support bars 522 cooperate with each other, the two groups of support bars 522 can be fixedly installed by the middle plate 521 when in use, so that when the connecting plate 52 is fixedly installed on the main filter screen group 51, the support bars 522 can be supported between the side frames 512 at both ends, ensuring that the main filter screen group 51 is used more stably. Limiting clamping blocks 523 are arranged on both sides of the middle plate 521, the limiting clamping blocks 523 are integrally formed with the middle plate 521, and the head of the side frame 512 is provided with a positioning clamping groove 513 matched with the limiting clamping block 523. By arranging the limiting clamping blocks 523 on both sides of the middle plate 521, the limiting clamping blocks 523 can be stably installed in the positioning clamping groove 513 opened at the head of the side frame 512 when in use, so that the connecting plate 52 can be stably fixedly installed on the main filter screen group 51, and by fixing and installing the connecting plate 52 on the main filter screen group 51, the main filter screen group 51 can be shielded by the connecting plate 52 when being pulled out and disassembled, thereby effectively preventing the smoke dust on the filter screen 511 from falling during the pulling out of the main filter screen group 51, and achieving better cleaning effect.

[0038] The implementation principle of the wall-mounted stove coaxial filter smoke pipe device is that in actual use, the smoke can stably pass through the filter 5 through the second smoke exhaust channel 11 and the first smoke exhaust channel 21, and then stably exhaust from the gap between the right side shell 33 and the coaxial inner pipe 1. When the filter 5 needs to be cleaned, the maintenance cover 4 can be turned over and opened, and then the filter 5 can be pulled out from the installation groove 61 of the pressing ring 6 for cleaning. After cleaning, the filter 5 can be reinstalled and used, which is very convenient to operate.

[0039] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A coaxial filtering flue device for a wall-hung boiler, comprising a coaxial inner tube (1), characterized in that: The outer side middle part of the coaxial inner tube (1) is sleeved with a smoke pipe body (2), the outer side of the smoke pipe body (2) is sleeved with an outer shell (3), the outer shell (3) is installed with a reversible maintenance cover (4), the smoke pipe body (2) and the outer shell (3) are installed with a detachable filter (5), the filter (5) comprises a main filter screen group (51) and a connecting plate (52), the connecting plate (52) is installed at one end of the main filter screen group (51), and the connecting plate (52) is fixedly connected with the main filter screen group (51).

2. A coaxial filter flue device for a wall-hanging stove according to claim 1, characterized in that: The outer shell (3) comprises a middle shell (31), a left side shell (32) and a right side shell (33), the left side shell (32) and the right side shell (33) are installed at two ends of the middle shell (31), and the left side shell (32) and the right side shell (33) are fixedly connected with the middle shell (31).

3. A coaxial filter flue arrangement for a wall-hung boiler according to claim 2, characterized in that: The outer side of the middle shell (31) is provided with a positioning side groove (311) for installing the maintenance cover (4), and the middle shell (31) and the smoke pipe body (2) are provided with a first smoke flue (21), and the left side shell (32) and the coaxial inner tube (1) form a second smoke flue (11) communicated with the first smoke flue (21).

4. A coaxial filter flue arrangement for a wall-hung boiler according to claim 3, characterized in that: The first smoke flue (21) is provided with two groups of pressing rings (6) pressing the edges of the filter (5), and the pressing ring (6) is provided with an installation groove (61) for installing the filter (5).

5. A coaxial filter flue arrangement for a wall-hung boiler according to claim 4, characterized in that: The main filter screen group (51) comprises a middle filter screen (511) and a side frame (512), the side frame (512) is symmetrically installed at two sides of the middle filter screen (511), and the side frame (512) is fixedly connected with the middle filter screen (511).

6. A coaxial filter flue arrangement for a wall-hung boiler according to claim 5, characterized in that: The connecting plate (52) comprises a middle plate (521) and a supporting strip (522), the supporting strip (522) is symmetrically installed at two sides of the middle plate (521), and the supporting strip (522) is fixedly connected with the middle plate (521).

7. A coaxial filter flue arrangement for a wall-hung boiler according to claim 6, characterized in that: The two sides of the middle plate (521) are provided with limiting clamping blocks (523), the limiting clamping blocks (523) are integrally formed with the middle plate (521), and the head of the side frame (512) is provided with a positioning clamping groove (513) matched with the limiting clamping block (523).

8. A coaxial filter flue arrangement for a wall-hung boiler according to claim 7, characterized in that: The maintenance cover (4) comprises an arc-shaped cover plate (41) and a maintenance lock buckle (42), one end of the arc-shaped cover plate (41) is rotatably connected with the middle shell (31), and the maintenance lock buckle (42) is fixedly installed at the other end of the arc-shaped cover plate (41).

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