Air inlet pipe of combustion fan

Abstract

The utility model discloses an air inlet pipe of a combustion fan, which relates to the technical field of air inlet pipes and comprises an air inlet pipe body, and one end of the air inlet pipe body is provided with an air quantity adjusting component used for adjusting the air inlet quantity of the combustion fan. The air volume adjusting assembly comprises an annular mounting base, the annular mounting base is fixed to the outer wall of the end, provided with an air inlet, of the air inlet pipe body, the outer portion of the annular mounting base is in threaded connection with an annular mounting sleeve, and three first through holes distributed in an annular array with the center of the annular mounting sleeve as the circle center are formed in the annular mounting sleeve. A rotating plate is arranged on the side, away from the air inlet pipe body, of the first through hole. The annular mounting seat and the annular mounting sleeve are in threaded connection, so that the annular mounting sleeve can be conveniently detached from the outer end of the air inlet pipe body, the air inlet pipe can be conveniently carried, the annular mounting seat can be sleeved with the annular mounting sleeve only by rotating the annular mounting sleeve during mounting, and the air inlet pipe is convenient to use. And the operation is relatively simple.

Description

Technical Field

[0001] The utility model relates to the technical field of air inlet pipes, in particular to an air inlet pipe for a combustion-supporting fan. Background Art

[0002] The combustion-supporting fan is composed of an outer box, ceramic glass, etc., and its function is to support combustion. The combustion-supporting fan is equipped with a special air inlet duct. The opening size of the cross-section of the air inlet duct in the current prior art is fixed, and it cannot be adjusted according to the size of the air volume demand. To solve this problem, the Chinese patent with the prior art publication number CN209129927U provides an air inlet duct structure, which sets two baffles at the position of the air duct orifice, and then moves the position of the two baffles horizontally so that it can block the air duct orifice to achieve the purpose of adjusting the air intake of the air duct.

[0003] However, in this technical solution, in order to cover the air duct opening, the height of the two baffles is greater than the diameter of the air duct opening, and the volume of the structure used to install the two baffles (such as the mounting plate) itself is greater than the cross-sectional diameter of the pipe. This results in the entire air volume regulating structure occupying a larger space, which easily increases the difficulty of installing and carrying the air inlet duct. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an air inlet duct for a combustion-supporting fan. By arranging a threaded connection between the annular mounting seat and the annular mounting sleeve, the annular mounting sleeve can be easily removed from the outer end of the air inlet duct body, thereby facilitating the transportation of the utility model. Moreover, during installation, it is only necessary to rotate the annular mounting sleeve and put it on the outside of the annular mounting seat, which is relatively simple to operate.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an air inlet pipe for a combustion-supporting fan, comprising an air inlet pipe body, one end of which is provided with an air volume regulating component for regulating the air volume of the combustion-supporting fan;

[0006] The air volume adjustment component includes an annular mounting seat, which is fixed on the outer wall of one end of the air inlet of the air inlet duct body. The annular mounting seat is externally threadedly connected to an annular mounting sleeve. The annular mounting sleeve is provided with three first through holes distributed in a circular array with the center of the annular mounting sleeve as the center of the circle. A rotating plate is provided on the side of the first through hole away from the air inlet duct body. Three second through holes are distributed in a circular array with the center of the rotating plate as the center of the circle. The effect of adjusting the air volume entering the air inlet duct body is achieved by rotating the rotating plate to adjust the connectivity between the second through holes and the first through holes.

[0007] Preferably, the diameter of the first through hole is consistent with the diameter of the second through hole.

[0008] Preferably, a rotating shaft is fixed in the middle of the rotating plate, and one end of the rotating shaft away from the rotating plate is movably mounted inside the annular mounting seat through a bearing.

[0009] Preferably, a short round rod is fixed to the top of the rotating plate on one side away from the first through hole, and a connecting plate is fixed to the end of the short round rod away from the rotating plate. One side of the connecting plate is in contact with the end face of the annular mounting sleeve, and a butterfly bolt is provided on the top of the connecting plate. The end of the butterfly bolt close to the annular mounting sleeve passes through the connecting plate and extends into the interior of the annular mounting sleeve.

[0010] Preferably, a plurality of threaded holes are formed on a side wall of the annular mounting sleeve away from the air inlet pipe body, and one end of the butterfly bolt is threadedly connected to the threaded hole.

[0011] Preferably, an annular groove is formed on a side of the annular mounting sleeve away from the air inlet pipe body, the short round rod passes through the annular groove and rotates inside the annular groove, and the annular groove is located inside the plurality of threaded holes.

[0012] Compared with the prior art, the utility model provides an air inlet pipe for a combustion-supporting fan, which has the following beneficial effects:

[0013] 1. An annular mounting seat is mounted on one end of the air inlet pipe body, and an annular mounting sleeve is threadedly connected to the outside of the annular mounting seat. By rotating a rotating plate installed inside the annular mounting sleeve, the second through hole on the rotating plate can be connected to the first through hole opened inside the annular mounting sleeve, and the connecting state of the first through hole and the second through hole can be changed by rotating the rotating plate, so as to achieve the effect of adjusting the air intake volume;

[0014] Moreover, during installation, it is only necessary to put the annular installation sleeve on the outside of the annular installation seat and rotate it, which is relatively simple to operate, and it is also convenient to carry and transfer by removing the annular installation sleeve from the outer end of the air inlet pipe body.

[0015] 2. By using a short round rod to connect the rotating plate and the connecting plate together, the staff can drive the rotating plate to rotate by simply rotating the connecting plate, so as to adjust the connection state between the second through hole and the first through hole, thereby achieving the effect of adjusting the air intake volume. The position of the rotating plate after rotation can also be fixed by passing the butterfly bolt through the connecting plate and screwing it into the threaded hole on the annular mounting sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a right view of the utility model;

[0018] Figure 3 It is a schematic diagram of the rotating plate and the second through hole of the utility model after rotation;

[0019] Figure 4 It is a cross-sectional view of the utility model;

[0020] Figure 5 For the utility model Figure 4 A magnified view of middle;

[0021] Figure 6 For the utility model Figure 4 Exploded view of;

[0022] Figure 7 For the utility model Figure 6 Enlarged view of middle B;

[0023] In the figure:

[0024] 1. Air inlet pipe body;

[0025] 2 air volume adjustment component, 21 annular mounting seat, 22 annular mounting sleeve, 23 first through hole, 24 rotating plate, 25 second through hole, 26 rotating shaft, 27 short round rod, 28 connecting plate, 29 butterfly bolt, 210 threaded hole, 211 annular groove. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, the utility model provides an air inlet duct for a combustion-supporting fan, comprising an air inlet duct body 1, wherein one end of the air inlet duct body 1 is provided with an air volume regulating component 2 for regulating the air inlet volume of the combustion-supporting fan. Through the setting of the air volume regulating component 2, the air volume entering the air inlet duct body 1 can be adjusted according to the demand of the combustion-supporting fan for air volume to meet different usage conditions.

[0028] Specifically, Figure 2-4 As shown in Figure 6, the air volume adjustment component 2 includes an annular mounting seat 21, which is fixed on the outer wall of one end of the air inlet of the air inlet pipe body 1. The annular mounting seat 21 is externally threadedly connected with an annular mounting sleeve 22, and the annular mounting sleeve 22 is provided with three first through holes 23 distributed in an annular array with the center of the annular mounting sleeve 22 as the center of the circle. A rotating plate 24 is provided on the side of the first through hole 23 away from the air inlet pipe body 1, and three second through holes 25 distributed in an annular array with the center of the rotating plate 24 as the center of the circle are provided on the rotating plate 24. The effect of adjusting the air volume entering the air inlet pipe body 1 is achieved by rotating the rotating plate 24 to adjust the connection state between the second through holes 25 and the first through holes 23;

[0029] Moreover, the diameter of the first through hole 23 is consistent with the diameter of the second through hole 25. When the second through hole 25 is aligned with the first through hole 23, as shown in FIG. Figure 2 and 4 As shown, at this time, the outside wind can enter the inside of the annular installation sleeve 22 through the connected first through hole 23 and the second through hole 25, and then enter the inside of the air inlet pipe body 1 through the annular installation sleeve 22. At this time, the air intake volume is the largest;

[0030] When the rotating plate 24 rotates a certain angle, the second through hole 25 and the first through hole 23 are no longer aligned. Figure 3 As shown, since part of the first through hole 23 is blocked by the rotating plate 24, the wind that enters the first through hole 23 through the second through hole 25 will be reduced, that is, the amount of wind that enters the air inlet pipe body 1 will also be reduced, thereby achieving the effect of adjusting the air intake volume of the combustion-supporting fan.

[0031] In order to enable the rotating plate 24 to rotate, Figure 3 , 4 As shown in FIG. 6 , a rotating shaft 26 is fixed in the middle of the rotating plate 24 , and one end of the rotating shaft 26 away from the rotating plate 24 is movably mounted inside the annular mounting seat 21 through a bearing. Under the connecting action of the rotating shaft 26 , the rotating plate 24 can rotate around the central axis of the rotating shaft 26 .

[0032] Furthermore, the position of the rotating plate 24 needs to be fixed after the rotating plate 24 rotates to prevent the rotating plate 24 from rotating spontaneously under the action of wind and affecting the air intake. Figure 4-7 As shown, a short round rod 27 is fixed on the top of the rotating plate 24 away from the first through hole 23, and a connecting plate 28 is fixed on one end of the short round rod 27 away from the rotating plate 24. One side of the connecting plate 28 contacts the end surface of the annular mounting sleeve 22, and a butterfly bolt 29 is provided on the top of the connecting plate 28. One end of the butterfly bolt 29 close to the annular mounting sleeve 22 penetrates the connecting plate 28 and extends into the inside of the annular mounting sleeve 22, and a plurality of threaded holes 210 are opened on a side wall of the annular mounting sleeve 22 away from the air inlet pipe body 1, and one end of the butterfly bolt 29 is threadedly connected with the threaded hole 210;

[0033] like Figure 5 and 7 As shown, the annular installation sleeve 22 is provided with an annular groove 211 on one side away from the air inlet pipe body 1, the short round rod 27 penetrates the annular groove 211 and rotates inside the annular groove 211, and the annular groove 211 is located inside the plurality of threaded holes 210;

[0034] Before rotating the rotating plate 24, it is necessary to first unscrew the butterfly bolt 29 from the threaded hole 210, and then pull it out from the connecting plate 28. At this time, the connecting plate 28 is free from the restriction of the butterfly bolt 29 and can rotate inside the annular groove 211. When the rotating plate 24 is rotated to a suitable position, it is only necessary to reinsert the butterfly bolt 29 into the connecting plate 28 and then screw it into the threaded hole 210. The operation is also relatively simple.

[0035] In addition, the annular mounting seat 21 and the annular mounting sleeve 22 in the utility model can be disassembled and assembled, so before transportation, the annular mounting sleeve 22 only needs to be removed from the outer end of the annular mounting seat 21, and the utility model can be transported separately to reduce the space occupied by the overall structure, which helps to reduce the difficulty of transportation; and when installing the utility model, it is only necessary to screw the annular mounting sleeve 22 onto the outer end of the annular mounting seat 21, which is also relatively simple to operate and can reduce the difficulty of installing the utility model for the staff.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An air inlet pipe for a combustion-supporting fan, comprising an air inlet pipe body (1), characterized in that: An air volume regulating component (2) for regulating the air volume of the combustion-supporting fan is provided at one end of the air inlet pipe body (1); The air volume adjustment component (2) comprises an annular mounting seat (21), the annular mounting seat (21) being fixed on the outer wall of one end of the air inlet of the air inlet pipe body (1), the annular mounting seat (21) being externally threadedly connected to an annular mounting sleeve (22), the annular mounting sleeve (22) being provided with three first through holes (23) distributed in an annular array with the center of the annular mounting sleeve (22) as the center of the circle, a rotating plate (24) being provided on the side of the first through hole (23) away from the air inlet pipe body (1), the rotating plate (24) being provided with three second through holes (25) distributed in an annular array with the center of the rotating plate (24) as the center of the circle, and the effect of adjusting the air volume entering the air inlet pipe body (1) is achieved by rotating the rotating plate (24) to adjust the connection state between the second through holes (25) and the first through holes (23).

2. The combustion-supporting fan air inlet pipe according to claim 1, characterized in that: The diameter of the first through hole (23) is consistent with the diameter of the second through hole (25).

3. The combustion-supporting fan air inlet pipe according to claim 1, characterized in that: A rotating shaft (26) is fixed in the middle of the rotating plate (24), and one end of the rotating shaft (26) away from the rotating plate (24) is movably mounted inside the annular mounting seat (21) via a bearing.

4. The combustion-supporting fan air inlet pipe according to claim 1, characterized in that: A short round rod (27) is fixed to the top of the side of the rotating plate (24) away from the first through hole (23); a connecting plate (28) is fixed to the end of the short round rod (27) away from the rotating plate (24); one side of the connecting plate (28) is in contact with the end surface of the annular mounting sleeve (22); a butterfly bolt (29) is provided on the top of the connecting plate (28); an end of the butterfly bolt (29) close to the annular mounting sleeve (22) passes through the connecting plate (28) and extends into the interior of the annular mounting sleeve (22).

5. The combustion-supporting fan air inlet pipe according to claim 4, characterized in that: A plurality of threaded holes (210) are provided on a side wall of the annular mounting sleeve (22) away from the air inlet pipe body (1), and one end of the butterfly bolt (29) is threadedly connected to the threaded hole (210).

6. The combustion-supporting fan air inlet pipe according to claim 5, characterized in that: An annular groove (211) is provided on the side of the annular mounting sleeve (22) away from the air inlet pipe body (1); the short round rod (27) passes through the annular groove (211) and rotates inside the annular groove (211); and the annular groove (211) is located inside the plurality of threaded holes (210).

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