Air volume adjusting mechanism

Abstract

An air volume adjusting mechanism comprises a heater, a draught fan connected with the air inlet side of the heater and an air pipe connector connected with the air outlet side of the heating side, the air volume adjusting mechanism comprises an air gate plate arranged in the air pipe connector, an adjusting rod transversely penetrating through the air pipe connector and a handle assembly arranged at one end of the adjusting rod, and the air gate plate is fixedly connected with the adjusting rod. Limiting rings are arranged on the adjusting rod and located on the two sides of the air pipe connector. According to the principle, the adjusting rod and the air gate plate are driven to rotate by rotating the handle, and the air volume is adjusted; the handle is matched with scale indication to accurately control the opening and closing degree of the air flashboard; a plurality of handles can be arranged in a centralized manner, so that the air volume of a plurality of air pipes can be uniformly controlled; the handle is connected with the air gate plate through the adjusting rod and can be arranged outside the oven, and operation of technicians is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of ventilation system technology, and in particular to an oven airflow regulating mechanism. Background Technology

[0002] In industrial heating equipment or ventilation systems, airflow regulation mechanisms are key components for controlling airflow. Traditional airflow regulation mechanisms typically employ fixed dampers or electric adjustment methods, which have the following problems: 1. Low adjustment accuracy: Fixed dampers cannot achieve precise airflow control; 2. Complex structure: Electric adjustment methods require additional power units and control circuits, resulting in higher costs; 3. Inconvenient maintenance: Existing dampers have complex structures, making disassembly and maintenance difficult. Therefore, there is an urgent need for an airflow regulation mechanism that is simple in structure, easy to operate, and easy to maintain. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an air volume regulating mechanism that can achieve precise control of air volume by manually adjusting the position of the damper, while simplifying the structure, reducing costs and improving maintenance convenience.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: an air volume regulating mechanism, including a heater, a fan connected to the air inlet side of the heater, and an air duct connector connected to the air outlet side of the heater. The air volume regulating mechanism includes an air damper plate disposed within the air duct connector, an adjusting rod extending transversely through the air duct connector, and a handle assembly disposed at one end of the adjusting rod. The air damper plate is fixedly connected to the adjusting rod, and limiting rings are provided on both sides of the adjusting rod at the air duct connector. The principle of this utility model is as follows: by rotating the handle, the adjusting rod and the air damper plate are rotated, thereby regulating the air volume; the handle, in conjunction with a scale indicator, precisely controls the opening and closing degree of the air damper plate; multiple handles can be centrally arranged for convenient unified control of the air volume of multiple air ducts; the handle is connected to the air damper plate via the adjusting rod, and the handle can be located outside the oven for convenient operation by technicians.

[0005] As an improvement, the damper is circular, the adjusting rod passes through the middle of one side of the damper, the adjusting rod is connected to the damper by a fixing plate, the fixing plate covers the adjusting rod, and the fixing plate is connected to the damper by screws.

[0006] As an improvement, the limiting ring is provided with a through hole for the adjusting rod to pass through, and the surface of the adjusting rod is provided with a locking bolt that extends into the through hole to lock the adjusting rod.

[0007] As an improvement, the handle assembly includes a fixed plate, a positioning seat disposed on the fixed plate, a handle mounting seat rotatably connected to the positioning seat, and a handle connected to the handle mounting seat. The adjusting rod passes through the fixed plate and the positioning seat in sequence and is then key-connected to the handle mounting seat.

[0008] As an improvement, a scale plate is provided on one side of the fixing plate corresponding to the positioning seat.

[0009] As an improvement, the positioning seat has a receiving groove on the side that is in contact with the fixing plate, the adjusting rod has an annular groove, and an elastic retaining ring is provided at the annular groove. The elastic retaining ring is located in the receiving groove and abuts against one side of the fixing plate.

[0010] As an improvement, the fixing plate is bent into an L-shape on both sides and has fixing holes.

[0011] As an improvement, the heater includes a shell with a top opening, a heating tube disposed in the heating cavity of the shell, a mounting plate disposed on the top of the shell, a heat insulation plate disposed on the mounting plate, a silicone pad disposed on the heat insulation plate, and a heating tube mounting bracket disposed on the silicone pad. The connecting end of the heating tube faces upward and is fixed to the heating tube mounting bracket by a heating tube fixing clamp.

[0012] As an improvement, the heating tube mounting bracket is provided with an inspection port that exposes the connection end of the heating tube, and the heating tube mounting bracket is provided with a top cover at the inspection port.

[0013] As an improvement, the heating tube mounting bracket is provided with connecting brackets on both sides. The connecting brackets are connected to the heating tube mounting bracket by bolts. The connecting brackets are provided with handles. The two ends of the connecting brackets extend out of the heating tube mounting bracket to form connecting parts. The connecting parts are provided with elongated holes.

[0014] The beneficial effects of this utility model compared with the prior art are:

[0015] The air damper can be manually adjusted, eliminating the need for a complex power unit and reducing costs; the handle assembly and scale design make airflow adjustment more intuitive and precise; the access port and top cover design on the heater facilitate disassembly and maintenance; the limit ring and locking bolt ensure the adjustment rod is fixed and prevent the air damper from loosening. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model.

[0017] Figure 2 This is a side view of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the heater.

[0019] Figure 4 This is a schematic diagram of the handle assembly.

[0020] Figure 5 This is a front view of the fixing plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 1 , 2 As shown, an airflow regulating mechanism applicable to an oven includes a heater 1, a fan 2 connected to the air inlet side of the heater 1, and an air duct connector 5 connected to the air outlet side of the heater. The air duct connector 5 is made of stainless steel, with a connecting lug at one end. The connecting lug is connected to the heater 1 by bolts, and the other end of the air duct connector 5 can be inserted into an air supply duct 4. Figure 4 , 5 As shown, the airflow regulating mechanism 3 includes a damper 33 disposed within the duct joint 5, an adjusting rod 32 extending transversely through the duct joint 5, and a handle assembly disposed at one end of the adjusting rod 32. The damper 33 is fixedly connected to the adjusting rod 32. The damper 33 is circular, and the adjusting rod 32 passes through the middle of one side of the damper 33. The adjusting rod 32 is connected to the damper 33 via a fixing plate 35, which covers the adjusting rod 32. The fixing plate 35 is connected to the damper 33 via screws. The damper 33 is rotated by rotating the adjusting rod 32. Limiting rings 34 are provided on both sides of the adjusting rod 32 on the duct joint 5. The limiting rings 34 have through holes through which the adjusting rod 32 passes. The surface of the adjusting rod 32 has locking bolts that extend into the through holes to lock the adjusting rod 32. The position of the limiting rings 34 can be adjusted by the diameter of the duct joint 5. The handle assembly includes a fixed plate 31, a positioning seat 36 disposed on the fixed plate 31, a handle mounting seat 37 rotatably connected to the positioning seat 36, and a handle 38 connected to the handle mounting seat 37; the adjusting rod 32 passes through the fixed plate 31 and the positioning seat 36 in sequence and is splinedly connected to the handle mounting seat 37; the handle 38 drives the handle mounting seat 37 to rotate, the handle mounting seat 37 drives the adjusting rod 32, and the adjusting rod 32 drives the damper 33; a scale plate 39 is provided on the side of the fixed plate 31 corresponding to the positioning seat 36 to indicate the opening and closing range of the damper 33. The positioning seat 36 has a receiving groove on the side that is in contact with the fixing plate 31. The adjusting rod 32 has an annular groove and an elastic retaining ring at the annular groove. The elastic retaining ring is located in the receiving groove and abuts against one side of the fixing plate 31. The elastic retaining ring is used to limit the movement and prevent the adjusting rod 32 from axially displacing. The fixing plate 31 is bent into an L shape on both sides and has fixing holes. The fixing plate 31 is fixed to the outer frame of the oven through the fixing plate 31. Multiple handles 38 can be integrated on the fixing plate 31, and each handle 38 can control one air duct 4.

[0023] like Figure 3As shown, the heater 1 includes a top-opening outer shell 11, a heating tube 12 disposed within the heating chamber of the outer shell 11, a mounting plate 13 disposed on the top of the outer shell 11, a heat insulation plate 14 disposed on the mounting plate 13, a silicone pad disposed on the heat insulation plate 14, and a heating tube mounting bracket 15 disposed on the silicone pad. The fan 2 is fixed to the mounting plate 13, so that the heater 1 and the fan 2 form an integral module for easy installation. The connecting end of the heating tube 12 faces upward and is fixed to the heating tube mounting bracket 15 by a heating tube fixing clip 16; the heating tube mounting bracket 15 is provided with an inspection port exposing the connecting end of the heating tube, and a top cover 17 is provided on the heating tube mounting bracket 15 at the inspection port; when maintenance of the heating tube is required, the top cover 17 is opened and the operation is performed through the inspection port. The heating tube mounting bracket 15 has connecting brackets 18 on both sides. The connecting brackets 18 are connected to the heating tube mounting bracket 15 by bolts. The connecting brackets 18 are provided with handles. The two ends of the connecting brackets 18 extend out of the heating tube mounting bracket 15 to form connecting parts. The connecting parts are provided with elongated holes. The heating tube mounting bracket 15 can be fixed to the top frame of the oven through the connecting brackets 18.

[0024] The principle of this utility model is as follows: by rotating the handle 38, the adjusting rod 32 and the damper 33 are driven to rotate, thereby adjusting the air volume; the handle 38, in conjunction with the scale indicator, precisely controls the opening and closing degree of the damper 33; multiple handles 38 can be arranged in a centralized manner to facilitate unified control of the air volume of multiple air ducts; the handle 38 is connected to the damper 33 through the adjusting rod 32, and the handle 38 can be located outside the oven for convenient operation by technicians.

Claims

1. An airflow regulating mechanism, comprising a heater, a fan connected to the air inlet side of the heater, and a duct connector connected to the air outlet side of the heater, characterized in that: The air volume adjustment mechanism includes an air damper plate disposed inside the duct joint, an adjustment rod that runs horizontally through the duct joint, and a handle assembly disposed at one end of the adjustment rod. The air damper plate is fixedly connected to the adjustment rod, and the adjustment rod is provided with limiting rings on both sides of the duct joint.

2. The airflow regulating mechanism according to claim 1, characterized in that: The damper is circular, and the adjusting rod passes through the middle of one side of the damper. The adjusting rod is connected to the damper via a fixing plate, which covers the adjusting rod and is connected to the damper via screws.

3. The air volume regulating mechanism according to claim 1, characterized in that: The limiting ring has a through hole for the adjusting rod to pass through, and the surface of the adjusting rod has a locking bolt that extends into the through hole to lock the adjusting rod.

4. The air volume regulating mechanism according to claim 1, characterized in that: The handle assembly includes a fixed plate, a positioning seat disposed on the fixed plate, a handle mounting seat rotatably connected to the positioning seat, and a handle connected to the handle mounting seat. The adjusting rod passes through the fixed plate and the positioning seat in sequence and is then connected to the handle mounting seat.

5. The airflow regulating mechanism according to claim 4, characterized in that: The fixed plate is provided with a scale plate on one side corresponding to the positioning seat.

6. The air volume regulating mechanism according to claim 4, characterized in that: The positioning seat has a receiving groove on the side that is in contact with the fixing plate, the adjusting rod has an annular groove, and an elastic retaining ring is provided at the annular groove. The elastic retaining ring is located in the receiving groove and abuts against one side of the fixing plate.

7. The air volume regulating mechanism according to claim 4, characterized in that: The fixing plate is bent into an L-shape on both sides and has fixing holes.

8. The air volume regulating mechanism according to claim 1, characterized in that: The heater includes a shell with a top opening, a heating tube disposed in the heating cavity of the shell, a mounting plate disposed on the top of the shell, a heat insulation plate disposed on the mounting plate, a silicone pad disposed on the heat insulation plate, and a heating tube mounting bracket disposed on the silicone pad. The connecting end of the heating tube faces upward and is fixed to the heating tube mounting bracket by a heating tube fixing clamp.

9. The air volume regulating mechanism according to claim 8, characterized in that: The heating tube mounting bracket is provided with an inspection port that exposes the connection end of the heating tube, and the heating tube mounting bracket is provided with a top cover at the inspection port.

10. The air volume regulating mechanism according to claim 8, characterized in that: The heating tube mounting bracket has connecting brackets on both sides. The connecting brackets are connected to the heating tube mounting bracket by bolts. The connecting brackets are equipped with handles. The two ends of the connecting brackets extend out of the heating tube mounting bracket to form connecting parts. The connecting parts are equipped with elongated holes.

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