Blast mechanism and burner using same

Abstract

The utility model discloses an air blowing mechanism and a combustor applying the same, relates to gas stove accessories, aims to solve the problems existing when a side-mounted air blowing mechanism is applied to the combustor, and adopts the technical scheme that the air blowing mechanism comprises a fan blade fan, a connecting seat and a non-return cover, the connecting base, the fan blade fan and the non-return cover are sequentially connected in the same axis. The connecting seat is used for fixedly assembling the fan blade fan and the combustor and communicating the air outlet end of the fan blade fan with the combustor; the non-return cover is used for collecting and compressing airflow at the air inlet end of the fan blade fan and comprises two expansion sections and a contraction section. According to the air blowing mechanism, on the premise that maintenance is convenient and fast, the air blowing amount is effectively increased.

Description

Technical Field

[0001] The utility model relates to gas stove accessories, more specifically, it relates to a blast mechanism and a burner using the mechanism. Background Art

[0002] The burner is an important component that affects the energy consumption level of the gas stove. With the promulgation of the new national standard, the blower mechanism has become an indispensable component in commercial kitchen burners.

[0003] A blast burner disclosed in a Chinese patent announcement with announcement number CN218237457U has the following technical points: a burner body, the burner body is provided with an inner ring nozzle, an inner ring air mixing cavity and a first air supply groove, the inner ring nozzle is connected to the inlet end of the inner ring air mixing cavity, the top of the first air supply groove is open and connected to the outside of the burner body, and the inner ring air mixing cavity surrounds the outside of the first air supply groove along the circumferential direction; a rectifying component, the rectifying component is located below the inner ring air mixing cavity, the rectifying component is provided with a rectifying cavity, an air inlet and a plurality of first air holes, the first air holes are provided on the top cavity wall of the rectifying cavity, the first air holes connect the rectifying cavity and the first air supply groove, and the air inlet is provided on the bottom cavity wall of the rectifying cavity; a fan, the fan has an air outlet, and the air outlet is connected to the air inlet of the rectifying component.

[0004] The above technical solution adopts a side-mounted blowing mechanism. During the test, it was found that the wind resistance increased due to the change in wind direction, and the disassembly and assembly of the blowing mechanism would be blocked by the gas stove shell structure, resulting in inconvenient maintenance; therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a blowing mechanism which can effectively increase the blowing air volume while being easy to maintain.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a blowing mechanism, including a fan, a connecting seat and a non-return cover, the connecting seat, the fan and the non-return cover are connected in sequence along the same axis; the connecting seat is used to fix the fan and the burner, and to connect the air outlet of the fan and the burner; the non-return cover is used to collect and compress the airflow at the air inlet end of the fan, and it includes two expansion sections and one contraction section.

[0007] By adopting the above-mentioned technical scheme, the present application is fixedly installed on the bottom end of the burner through the connecting seat. Compared with the traditional side-mounted blowing mechanism, it will not be blocked by the gas stove shell structure during disassembly and assembly, and has the technical effect of convenient maintenance; during normal operation, air is drawn by the fan blade fan, and the air enters through the non-return cover. In the process of passing through the non-return cover, the air in a larger area is first obtained by the expansion section, and then the air is compressed through the contraction section, and finally the fan blade fan is evenly entered from the expansion section. After passing through the fan blade fan and the connecting seat, the airflow enters the burner, and more air is obtained through the non-return cover and evenly enters the present application after compression, and an axial optimized layout is adopted to reduce airflow turning damage; in summary, the present application effectively increases the blowing air volume under the premise of convenient maintenance.

[0008] The utility model is further configured as follows: the fan blade fan includes a fan casing with two ends passing through, a motor arranged in the fan casing, and fan blades driven to rotate by the motor; the connecting seat and the anti-return cover are both provided with a cover shell, and the cover shell is sleeved on the end of the fan casing.

[0009] The utility model is further configured as follows: a long hole is arranged through the two cover shells and the fan shell, a long screw is inserted into the long hole, and a nut is threadedly matched with the long screw.

[0010] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a burner using a blast mechanism, thereby improving the utilization effect of air provided by the blast mechanism and reducing air flow loss.

[0011] The above technical purpose of the utility model is achieved through the following technical scheme: a burner using a blowing mechanism, including a burner body and the above-mentioned blowing mechanism, the burner body is coaxially provided with a gas collecting cavity with a bottom opening, and the connecting seat is coaxially connected to the gas collecting cavity.

[0012] By adopting the above technical solution, the air provided by the blowing mechanism is collected and distributed through the air collecting chamber, which effectively improves the utilization effect of the air, and adopts a coaxial docking connection seat and the air collecting chamber to effectively reduce the loss of airflow when entering the burner.

[0013] The utility model is further configured as follows: the connecting ends of the gas collecting cavity and the connecting seat are respectively provided with outward-turned docking edges, the two outward-turned docking edges are respectively provided with locking ears, and the two locking ears are fixed with locking bolts.

[0014] The utility model is further configured as follows: a sealing rubber pad is arranged between the two outward-turned butt joint edges.

[0015] The utility model is further configured as follows: the connecting seat is integrally formed at the bottom end of the gas collecting cavity

[0016] In summary, the blowing mechanism of the utility model has the following beneficial effects: under the premise of convenient maintenance, the blowing air volume is effectively increased; the connecting seat and the anti-return cover are sleeved with the end of the fan casing through the cover shell to achieve connection with the fan blade fan, effectively improving the sealing of the coaxial connection; under the premise of meeting the requirements of detachable assembly of the connecting seat, the fan blade fan and the anti-return cover, the sealing of the three is effectively improved.

[0017] The utility model discloses a burner using an air blowing mechanism, which has the following beneficial effects: the air provided by the air blowing mechanism is collected and distributed through an air collecting chamber, thereby effectively improving the utilization effect of the air; and the coaxial docking connection seat and the air collecting chamber are adopted, thereby effectively reducing the loss of airflow when entering the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the first embodiment;

[0019] Figure 2 It is an exploded view of the first embodiment;

[0020] Figure 3 It is a schematic diagram of the overall structure of the second embodiment;

[0021] Figure 4 This is a schematic diagram of the structure of the third embodiment, and a partial cross-section is performed for the convenience of representation.

[0022] Description of the drawings: 1. Fan blade; 2. Connecting seat; 3. Check cover; 4. Expansion section; 5. Contraction section; 6. Fan casing; 7. Motor; 8. Fan blade; 9. Cover casing; 10. Long hole; 11. Long screw; 12. Nut; 14. Burner body; 15. Gas collecting chamber; 16. Outward-turned docking edge; 17. Locking ear; 18. Locking bolt; 19. Sealing pad. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1: A blowing mechanism, such as Figure 1 As shown, it includes a connecting seat 2, a fan blade fan 1 and a non-return cover 3 arranged in the same axis from top to bottom; the connecting seat 2 is used to fix the fan blade fan 1 and the burner, and to connect the air outlet end of the fan blade fan 1 and the burner; the non-return cover 3 is used to collect and compress the airflow at the air inlet end of the fan blade fan 1, and it includes two expansion sections 4 and a contraction section 5, the contraction section 5 is located between the two expansion sections 4, and the cross-sectional area from the expansion section 4 to the contraction section 5 gradually decreases.

[0025] The present application is fixedly installed at the bottom end of the burner through the connecting seat 2. Compared with the traditional side-mounted blowing mechanism, it will not be blocked by the gas stove shell structure during disassembly and assembly, and has the technical effect of convenient maintenance; during normal operation, air is drawn by the fan blade fan 1, and the air enters through the non-return cover 3. In the process of passing through the non-return cover 3, the expansion section 4 first obtains air in a larger area, and then compresses the air through the contraction section 5, and finally enters the fan blade fan 1 evenly from the expansion section 4. After passing through the fan blade fan 1 and the connecting seat 2, the airflow enters the burner, and more air is obtained through the non-return cover 3 and then evenly enters the present application after compression, and an axial optimized layout is adopted to reduce airflow turning damage; in summary, the present application effectively increases the blowing air volume under the premise of convenient maintenance.

[0026] The connection base 2, the fan blade 1 and the anti-return cover 3 are coaxially connected in the following manner: Figure 2 As shown, the fan blade fan 1 includes a fan casing 6 with both ends passing through, a motor 7 whose bracket is installed in the fan casing 6, and fan blades 8 driven to rotate by the motor 7. The connecting seat 2 and the anti-return cover 3 are both integrally formed with a cover shell 9, and the cover shell 9 is sleeved on the end of the fan casing 6; the connecting seat 2 and the anti-return cover 3 are sleeved on the end of the fan casing 6 through the cover shell 9 to achieve connection with the fan blade fan 1, thereby effectively improving the sealing of the coaxial connection.

[0027] It should be noted that if Figure 1 , Figure 2 As shown, a long hole 10 is provided through the two covers 9 and the fan casing 6, and a long screw 11 is inserted into the long hole 10, and the long screw 11 is threadedly matched with a nut 12; the long screw 11 is used in combination with the nut 12 to achieve the technical effect of simultaneously fastening the connecting seat 2, the fan blade fan 1 and the anti-return cover 3, and can be adapted to fan blade fans 1 of different length models.

[0028] In order to improve the sealing performance of the connecting seat 2, the fan blade 1 and the anti-return cover 3, sealant is applied between the outer wall of the cover 9 and the fan housing 6; thereby effectively improving the sealing performance of the three while meeting the requirements for detachable assembly of the connecting seat 2, the fan blade 1 and the anti-return cover 3.

[0029] Embodiment 2: A burner using a blast mechanism, such as Figure 3 As shown, it includes a burner body 14 and the blowing mechanism described in the first embodiment. The burner body 14 is coaxially and integrally formed with a gas collecting cavity 15 with an opening at the bottom end, and the connecting seat 2 is coaxially connected to the gas collecting cavity 15.

[0030] This embodiment collects and distributes the air provided by the blowing mechanism through the air collecting chamber, effectively improving the utilization effect of the air, and adopts a coaxial docking connection seat and the air collecting chamber to effectively reduce the loss of airflow when entering the burner.

[0031] The connection base 2 is coaxially connected to the bottom end of the gas collecting cavity 15 in the following manner: Figure 3 As shown, the connecting ends of the air collecting cavity 15 and the connecting seat 2 are respectively integrally formed with an outward-turned docking edge 16, and the two outward-turned docking edges 16 are respectively integrally formed with locking ears 17, and the two locking ears 17 are fixed with locking bolts 18; the outward-turned docking edges 16 are in contact with each other and are fastened by the locking bolts 18, which has the technical effect of simple connection structure and reliable sealing.

[0032] It should be noted that if Figure 3 As shown, a sealing rubber pad 19 is provided between the two outward-turned butt joint edges 16 , so that the gap between the two is filled by the sealing rubber pad 19 , thereby further improving the sealing reliability.

[0033] Embodiment 3: The difference between this embodiment and embodiment 2 lies in the connection method between the connection base 2 and the gas collecting cavity 15, such as Figure 4 As shown, in this embodiment, the connecting seat 2 and the air collecting cavity 15 are made of flame-retardant plastic with low heat transfer capability, so there is no need to consider the insulation requirements for the fan 1, and the connecting seat 2 and the air collecting cavity 15 adopt an integrated structure to further improve the compactness of the structure.

[0034] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A blowing mechanism, comprising a fan blade fan (1), characterized in that: It also comprises a connecting seat (2) and a backflow prevention cover (3), wherein the connecting seat (2), the fan blade fan (1) and the backflow prevention cover (3) are sequentially connected on the same axis; The connecting seat (2) is used to fix and assemble the blade fan (1) and the burner, and to conduct the air outlet end of the blade fan (1) and the burner; The anti-return cover (3) is used to collect and compress the airflow at the air inlet end of the fan blade fan (1), and comprises two expansion sections (4) and a contraction section (5).

2. A blowing mechanism according to claim 1, characterized in that: The fan blade fan (1) comprises a fan casing (6) with two ends extending therethrough, a motor (7) disposed in the fan casing (6), and fan blades (8) driven to rotate by the motor (7); The connecting seat (2) and the anti-return cover (3) are both provided with a cover shell (9), and the cover shell (9) is sleeved on the end of the fan casing (6).

3. A blowing mechanism according to claim 2, characterized in that: A long hole (10) is provided through the two covers (9) and the fan casing (6), a long screw (11) is inserted into the long hole (10), and a nut (12) is threadedly engaged with the long screw (11).

4. A burner using a blast mechanism, comprising a burner body (14), characterized in that: It comprises the blowing mechanism as claimed in any one of claims 1 to 3, wherein the burner body (14) is coaxially provided with a gas collecting cavity (15) with an opening at the bottom end, and the connecting seat (2) is coaxially connected to the gas collecting cavity (15).

5. A burner using a blast mechanism according to claim 4, characterized in that: The connecting ends of the gas collecting cavity (15) and the connecting seat (2) are respectively provided with outward-turned butt joint edges (16), and the two outward-turned butt joint edges (16) are respectively provided with locking ears (17), and the two locking ears (17) are provided with locking bolts (18) for fixing.

6. A burner using a blast mechanism according to claim 5, characterized in that: A sealing rubber pad (19) is provided between the two outward-turned butt joint edges (16).

7. A burner using a blast mechanism according to claim 5, characterized in that: The connecting seat (2) is integrally formed at the bottom end of the air collecting cavity (15).

Images