Adjusting air valve structure of kiln air pipe

Abstract

The invention provides an adjusting air valve structure of a kiln air pipe, which comprises a valve pipe provided with a channel penetrating through the interior of the valve pipe, and a mounting rack is fixedly arranged in the channel; the adjusting blades are rotationally arranged on the mounting frame, so that the channel is divided into a plurality of air channels for airflow to pass through by the adjusting blades; the adjusting unit comprises a rotating shaft arranged on the adjusting blades and an adjusting part rotationally arranged on the valve pipe, the rotating shaft penetrates through the valve pipe and penetrates to the outer side of the valve pipe, and the adjusting part is connected with the rotating shaft of each adjusting blade. All the adjusting blades are arranged in the valve pipe, the rotating shafts of the adjusting blades are designed to penetrate through the valve pipe and extend to the outside, the adjusting piece is adjusted in the circumferential direction of the valve pipe, all the adjusting blades are synchronously controlled, and the lateral space of the valve pipe cannot be occupied; the problem that a traditional flashboard installation structure occupies too much air pipe lateral space is solved, the air pipe lateral occupied space of the whole air valve structure is reduced, the space utilization rate is increased, the design is more compact, and the appearance is neat and attractive.

Description

Technical Field

[0001] The invention relates to the technical field of kiln air ducts, and in particular to a regulating air valve structure of a kiln air duct. Background Art

[0002] The kiln is usually composed of four parts, namely, the kiln chamber, the combustion equipment, the ventilation equipment, and the conveying equipment. The ventilation equipment is generally composed of a fan and an air duct. In order to control the air volume, an air valve is usually installed at the end of the air duct to facilitate control. In the "Assembled double-layer gate regulating air valve suitable for kiln air duct" disclosed in the Chinese patent "CN106969162B", the air valve cooperates with the air duct through the double-layer gate regulating air valve to adjust the air intake, pulls the pull rod and drives the front gate core and the rear gate core to move through the connecting rod group, thereby achieving the shielding rate between the front gate core and the rear gate core and the air inlet hole; by using the front gate core and the rear gate core to cooperate and adjust, and the two sets of first limit parts and second limit parts cooperate, the adjustment range of the air intake is wider. However, the adjustment direction of the air valve is adjusted radially along the air inlet. To facilitate installation of the gate, the installation structure of the gate occupies more lateral space of the air duct, which is not only unsightly but also limited by the assembly position during actual use. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a regulating air valve structure for a kiln air duct, which solves the problem in the prior art that the adjustment direction of the air valve is adjusted radially in the air inlet hole, and in order to facilitate the installation of the gate plate, the installation structure of the gate plate occupies more lateral space of the air duct, which is not only unsightly but also limited by the assembly position during actual use.

[0004] According to an embodiment of the present invention, a regulating air valve structure of a kiln air duct includes:

[0005] The valve tube has a passage running through the inside thereof, and a mounting frame is fixedly arranged in the passage;

[0006] Adjusting blades, each adjusting blade is rotatably mounted on a mounting frame so that each adjusting blade divides the passage into a plurality of air ducts for air flow to pass through;

[0007] The adjusting unit includes a rotating shaft arranged on the adjusting blade and an adjusting member rotatably arranged on the valve tube. The rotating shaft is passed through the valve tube and extends to the outside of the valve tube. The adjusting member is connected to the rotating shafts of each adjusting blade. When the adjusting member rotates, each adjusting blade is synchronously driven to rotate so that the cross-sectional area of ​​each air duct is increased or decreased.

[0008] Preferably, the adjusting member includes an adjusting ring rotatably arranged on the outside of the valve tube and a plurality of adjusting rods arranged on the adjusting ring and corresponding to each rotating shaft. An adjusting block is fixedly arranged at the end of each rotating shaft. The adjusting block is provided with an adjusting groove, and the adjusting rod is inserted into the corresponding adjusting groove.

[0009] Preferably, the valve tube is provided with two first fixed seats corresponding to the valve tube, a driving shaft is rotatably provided between the two first fixed seats, gears and worm wheels are respectively provided at both ends of the driving shaft, a tooth groove is opened on the inner side of the adjusting ring, the gear is meshed with the tooth groove, and second fixed seats connected to the valve tube are provided on both sides of the worm wheel, a worm is rotatably provided between the two second fixed seats, and the worm is connected to the worm wheel.

[0010] Preferably, one of the second fixing seats is provided with an auxiliary block, and the auxiliary block is fixedly connected to the end of the worm.

[0011] Preferably, the inner diameter of the adjustment ring is α, the outer diameter of the valve tube is β, α and β satisfy α>β, a plurality of U-shaped seats are provided on the outside of the valve tube, and the plurality of U-shaped seats are all rotatably provided with pulleys, the adjustment ring is clamped inside the plurality of U-shaped seats, and rolls against the pulleys.

[0012] Preferably, both ends of the valve tube are provided with fixing rings, wherein one fixing ring is provided with a plurality of mounting blocks, and the plurality of mounting blocks are provided with mounting holes.

[0013] Preferably, another fixing ring is provided with a protective net, the protective net is provided with fastening bolts, and the fastening bolts are threadedly connected to the fixing ring.

[0014] Preferably, a plurality of connecting ribs are provided at the end of the valve tube, and the plurality of connecting ribs are fixedly connected to the fixing ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present solution, the valve tube is installed at the end of the air duct, and when the air intake of the air duct is adjusted, the adjusting member installed on the valve tube is rotated so that the adjusting member synchronously drives each rotating shaft to rotate, so that the rotating shaft drives the adjusting blades connected thereto to rotate, and the angle of the adjusting blades in the channel is adjusted, so as to control the size of the air duct between the adjusting blades, and adjust the airflow entering the air duct, thereby realizing the adjustment of the air intake volume; each adjusting blade is placed inside the valve tube, and by designing the rotating shaft of the adjusting blade to pass through the valve tube and extend to the outside, the adjusting member can be adjusted along the circumference of the valve tube to synchronously control each adjusting blade, without occupying the lateral space of the valve tube, avoiding the problem of the gate installation structure in the traditional structure occupying too much lateral space of the air duct, thereby reducing the space occupied by the entire air valve structure on the lateral side of the air duct, improving space utilization, and making the overall design more compact and the appearance more neat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of area A in the middle.

[0019] Figure 3 Schematic diagram of the internal structure of the valve tube in an embodiment of the present invention.

[0020] Figure 4 Schematic diagram of the connection structure between each adjusting blade and the adjusting ring in an embodiment of the present invention.

[0021] Figure 5 Schematic diagram of the three-dimensional structure of the valve tube in the embodiment of the present invention.

[0022] In the above drawings: 1. valve tube; 101. fixing ring; 102. mounting block; 103. mounting hole; 104. connecting rib; 105. first fixing seat; 106. second fixing seat; 2. protective net; 201. fastening bolt; 3. adjusting ring; 301. tooth groove; 302. adjusting rod; 4. driving shaft; 5. gear; 6. worm gear; 601. worm; 602. auxiliary block; 7. adjusting blade; 701. adjusting block; 702. adjusting groove; 703. rotating shaft; 704. air duct; 8. mounting frame; 9. U-shaped seat; 901. pulley. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the embodiment of the present invention provides a regulating air valve structure of a kiln air duct, comprising:

[0025] The valve tube 1 has a passage running through the inside thereof, and a mounting frame 8 is fixedly arranged in the passage;

[0026] Adjusting blades 7, each adjusting blade 7 is rotatably mounted on a mounting frame 8, so that each adjusting blade 7 divides the passage into a plurality of air ducts 704 for air flow to pass through;

[0027] The adjusting unit includes a rotating shaft 703 provided on the adjusting blade 7 and an adjusting member rotatably provided on the valve tube 1. The rotating shaft 703 is passed through the valve tube 1 and extends to the outside of the valve tube 1. The adjusting member is connected to the rotating shaft 703 of each adjusting blade 7. When the adjusting member rotates, each adjusting blade 7 is synchronously driven to rotate so that the cross-sectional area of ​​each air duct 704 is increased or decreased.

[0028] In an embodiment of the present invention, the valve tube 1 is installed at the end of the air duct so that the channel of the valve tube 1 is connected to the passage of the air duct, and the wind flows directly into the interior of the air duct through the channel of the valve tube 1. The channel of the valve tube 1 is blocked by a plurality of adjusting blades 7. When each adjusting blade 7 is laid flat on the channel of the valve tube 1, the plane of the adjusting blade 7 is coplanar with the cross-section of the valve tube 1. When the planes of all the adjusting blades 7 are laid flat, the plane formed by each adjusting blade 7 closes the channel of the valve tube 1 to form a closed structure of the air duct.

[0029] Each adjusting blade 7 is rotatably set on the mounting frame 8 so that each adjusting blade 7 can rotate. When the channel of the valve tube 1 is opened, the plane of the adjusting blade 7 is flipped by rotating each adjusting blade 7, so that a gap is generated between two adjacent adjusting blades 7, namely, an air duct 704. The size of the air duct 704 is controlled by the flipping angle of the two adjusting blades 7. When two adjacent adjusting blades 7 are gradually flipped, the cross-sectional area of ​​the air duct 704 formed by the two adjusting blades 7 is gradually increased, so that the air volume passing through the air duct 704 is gradually increased. When the plane of the adjusting blade 7 is flipped to correspond to the axial direction of the valve tube 1, the cross-sectional area of ​​the air duct 704 between the two adjacent adjusting blades 7 is maximized, which is the maximum air intake.

[0030] In order to facilitate the synchronous adjustment of each adjusting blade 7, the adjusting unit is set up and the adjusting blades 7 are connected in series using an adjusting member. When the adjusting member is rotated, the adjusting member rotates with the valve tube 1 as the axis, thereby synchronously rotating each rotating shaft 703, and then each rotating shaft 703 adjusts the adjusting blade 7 connected to it, and synchronously adjusts each air duct 704, so that the interface size of each air duct 704 remains consistent after adjustment, so that the airflow is more uniform when passing through the valve tube 1.

[0031] Based on the above scheme, Figure 4 As shown, the adjusting member includes an adjusting ring 3 rotatably arranged on the outside of the valve tube 1 and a plurality of adjusting rods 302 arranged on the adjusting ring 3 and corresponding to each rotating shaft 703. An adjusting block 701 is fixedly provided at the end of each rotating shaft 703. The adjusting block 701 is provided with an adjusting groove 702. The adjusting rod 302 is inserted into the corresponding adjusting groove 702.

[0032] Specifically, when adjusting each adjusting blade 7 through the action of the adjusting member, since the adjusting ring 3 is sleeved on the valve tube 1, the adjusting ring 3 can be directly rotated to make the adjusting ring 3 rotate on the valve tube 1, so that each adjusting rod 302 of the adjusting ring 3 makes a circular motion with the adjusting ring 3 as the axis. Since the end of the adjusting block 701 is fixedly arranged on the end of the rotating shaft 703, when the rotating shaft 703 rotates, it drives the adjusting block 701 to make a swinging motion with the rotating shaft 703 as the axis. Therefore, when the adjusting ring 3 rotates, it drives the adjusting rod 302 to slide in the adjusting groove 702, so that the adjusting block 701 drives the rotating shaft 703 to rotate, thereby realizing the adjustment of each adjusting blade 7.

[0033] At the same time, if Figure 2 As shown, the valve pipe 1 is correspondingly provided with two first fixed seats 105, a driving shaft 4 is rotatably provided between the two first fixed seats 105, a gear 5 and a worm wheel 6 are respectively provided at both ends of the driving shaft 4, a tooth groove 301 is opened on the inner side of the adjusting ring 3, the gear 5 is meshed with the tooth groove 301, and second fixed seats 106 connected to the valve pipe 1 are provided on both sides of the worm wheel 6, a worm 601 is rotatably provided between the two second fixed seats 106, and the worm 601 is connected to the worm wheel 6.

[0034] In order to ensure the stability of the adjusting ring 3 after adjustment, when adjusting the adjusting ring 3, by rotating the worm 601, the worm 601 rotates between the two second fixing seats 106, so that the worm 601 drives the worm wheel 6 to rotate, and the worm wheel 6 drives the driving shaft 4 connected thereto to rotate between the two first fixing seats 105, and drives the gear 5 to rotate synchronously. Since the inner side surface of the adjusting ring 3 is provided with a tooth groove 301, the cooperation between the gear 5 and the tooth groove 301 can drive the adjusting ring 3 to move on the gear 5 when the gear 5 rotates, so that the adjusting ring 3 rotates on the valve pipe 1. When the required size of the air duct 704 is adjusted, the rotation of the worm 601 can be stopped directly. Under the self-locking principle of the worm 601 and the worm wheel 6, the driving shaft 4 cannot rotate by itself, so that the adjusting ring 3 cannot move on the gear 5, that is, the locking of the adjusting ring 3 is realized, and then the fixation of each adjusting blade 7 is realized, so that the cross-sectional size of the air duct 704 is fixed.

[0035] At the same time, one of the second fixed seats 106 is provided with an auxiliary block 602, which is fixedly connected to the end of the worm 601; the auxiliary block 602 is a nut, and when adjusting the worm 601, the worm 601 can be adjusted by tools such as wrenches, thereby making the adjustment of the worm 601 more labor-saving. In addition, the auxiliary block 602 can also be other rectangular block structures to facilitate clamping of tools such as wrenches and facilitate adjustment.

[0036] Specifically, Figure 1 and Figure 5As shown, the inner diameter of the adjusting ring 3 is α, the outer diameter of the valve tube 1 is β, α and β satisfy α>β, a plurality of U-shaped seats 9 are provided on the outside of the valve tube 1, and the plurality of U-shaped seats 9 are all rotatably provided with pulleys 901, and the adjusting ring 3 is clamped inside the plurality of U-shaped seats 9 and rolls against the pulleys 901.

[0037] Since the inner diameter of the adjusting ring 3 is larger than the outer diameter of the valve tube 1, and the adjusting ring 3 is limitedly installed by a plurality of U-shaped seats 9, the adjusting ring 3 can rotate on the plurality of U-shaped seats 9. With the support of the adjusting ring 3 by the plurality of U-shaped seats 9, the contact surface between the adjusting ring 3 and the valve tube 1 can be reduced, thereby reducing the friction during adjustment, making the adjustment of the adjusting ring 3 more labor-saving; further, an adjusting ring 3 is provided in the adjusting ring 3 that is in rolling contact with the U-shaped seat 9. When the adjusting ring 3 rotates, it can drive the pulley 901 to rotate, which can greatly reduce the resistance of the adjusting ring 3 during movement, making the adjustment of the adjusting ring 3 more labor-saving.

[0038] Specifically, Figure 5 As shown, both ends of the valve tube 1 are provided with fixing rings 101, wherein one fixing ring 101 is provided with a plurality of mounting blocks 102, and the plurality of mounting blocks 102 are provided with mounting holes 103; through the action of the plurality of mounting blocks 102, the fixing ring 101 can be abutted against the end of the air duct, and by aligning the mounting holes 103 of the mounting blocks 102 with the holes at the end of the air duct, finally the screws are passed through the mounting holes 103 to achieve fixed assembly, which is not only convenient for initial installation, but also convenient for later disassembly for maintenance and replacement.

[0039] Specifically, Figure 1 As shown, another fixing ring 101 is provided with a protective net 2, and the protective net 2 is provided with a fastening bolt 201, and the fastening bolt 201 is threadedly connected to the fixing ring 101; under the action of the protective net 2, when the airflow passes through the valve tube 1, the larger impurities contained in the airflow can be intercepted to prevent the impurities from entering the channel and blocking the air duct 704, which not only ensures the normal air intake effect, but also reduces the frequency of manual maintenance, and can also prevent impurities from colliding with the structure in the channel and causing damage; at the same time, the protective net 2 is connected to the fixing ring 101 by the fastening bolt 201, and the protective net 2 can be disassembled for cleaning, thereby ensuring the normal air intake efficiency and avoiding clogging of the protective net 2.

[0040] Specifically, Figure 1 As shown, a plurality of connecting ribs 104 are provided at the end of the valve tube 1, and the plurality of connecting ribs 104 are fixedly connected to the fixing ring 101; under the action of the connecting ribs 104, the structural strength between the fixing ring 101 and the valve tube 1 is increased, and the structural deformation is not likely to occur under long-term working or working vibration environment, thereby ensuring the normal use cycle.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A regulating air valve structure for a kiln air duct, characterized in that: include: The valve tube (1) has a passage running through the inside thereof, and a mounting frame (8) is fixedly arranged in the passage; Adjusting blades (7), each of the adjusting blades (7) being rotatably mounted on the mounting frame (8) so that each of the adjusting blades (7) divides the passage into a plurality of air ducts (704) for air flow to pass through; The adjusting unit comprises a rotating shaft (703) arranged on the adjusting blade (7) and an adjusting member rotatably arranged on the valve tube (1); the rotating shaft (703) is passed through the valve tube (1) and extends to the outside of the valve tube (1); the adjusting member is connected to the rotating shaft (703) of each adjusting blade (7); when the adjusting member rotates, each adjusting blade (7) is synchronously driven to rotate, so that the cross-sectional area of ​​each air duct (704) is increased or decreased.

2. The regulating air valve structure of a kiln air duct according to claim 1, characterized in that: The adjusting member comprises an adjusting ring (3) rotatably arranged on the outside of the valve tube (1) and a plurality of adjusting rods (302) arranged on the adjusting ring (3) and corresponding to each of the rotating shafts (703); an adjusting block (701) is fixedly arranged at the end of each of the rotating shafts (703); the adjusting block (701) is provided with an adjusting groove (702); and the adjusting rod (302) is inserted into the corresponding adjusting groove (702).

3. The regulating air valve structure of a kiln air duct according to claim 2, characterized in that: The valve tube (1) is provided with two first fixed seats (105) correspondingly, a driving shaft (4) is rotatably provided between the two first fixed seats (105), a gear (5) and a worm wheel (6) are provided at both ends of the driving shaft (4), a tooth groove (301) is provided on the inner side of the adjusting ring (3), the gear (5) is meshed with the tooth groove (301), and second fixed seats (106) connected to the valve tube (1) are provided on both sides of the worm wheel (6), a worm (601) is rotatably provided between the two second fixed seats (106), and the worm (601) is connected to the worm wheel (6).

4. The regulating air valve structure of a kiln air duct according to claim 3 is characterized in that: One of the second fixing seats (106) is provided with an auxiliary block (602), and the auxiliary block (602) is fixedly connected to the end of the worm (601).

5. The regulating air valve structure of a kiln air duct according to any one of claims 2 to 4, characterized in that: The inner diameter of the adjustment ring (3) is α, and the outer diameter of the valve tube (1) is β, α and β satisfy α>β, a plurality of U-shaped seats (9) are provided on the outer side of the valve tube (1), and a plurality of the U-shaped seats (9) are rotatably provided with pulleys (901), and the adjustment ring (3) is clamped inside the plurality of the U-shaped seats (9) and is in rolling contact with the pulleys (901).

6. The regulating air valve structure of a kiln air duct according to claim 1, characterized in that: Both ends of the valve tube (1) are provided with fixing rings (101), one of the fixing rings (101) is provided with a plurality of mounting blocks (102), and a plurality of the mounting blocks (102) are provided with mounting holes (103).

7. The regulating air valve structure of the kiln air duct according to claim 6, characterized in that: The other fixing ring (101) is provided with a protective net (2), and the protective net (2) is provided with a fastening bolt (201), and the fastening bolt (201) is threadedly connected to the fixing ring (101).

8. The regulating air valve structure of a kiln air duct according to claim 6, characterized in that: A plurality of connecting ribs (104) are provided at the end of the valve tube (1), and the plurality of connecting ribs (104) are fixedly connected to the fixing ring (101).

Images