Protective fence for electric heating high-temperature isolation of air handling machine

Abstract

The utility model discloses an air handling unit electric heating high temperature isolation guard fence, which comprises a frame body and guard fence blades, an electric heating pipe is fixedly installed in the frame body, a fixing plate is fixedly installed on the right side of the frame body, a driving assembly is arranged on the top of the fixing plate, and the driving assembly is fixedly installed on the frame body. A first rotating rod is arranged in the fixing plate through a driving assembly, a transmission assembly is arranged on the surface of the first rotating rod, a second rotating rod is arranged on the surface of the first rotating rod through the transmission assembly, a mounting plate is fixedly mounted on the surface of the second rotating rod, and a first mounting hole is formed in the front side of the mounting plate; bolts are in threaded connection with the interiors of the first mounting holes, second mounting holes are formed in the surfaces of the protective fence blades in a penetrating mode, and the bolts and the second mounting holes are arranged in a lap joint mode. And electric heating of the electric heating pipe can be isolated through the protective fence blades, ventilation is not affected, and it is guaranteed that fingers of an operator cannot make contact with the surface of the electric heating pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of protective grids, in particular to a protective grid for high-temperature isolation of electric heating in an air handling unit. Background Technique

[0002] In a central air-conditioning system, electric heaters are installed inside many air handling units. A typical application scenario is: along the air flow direction, it is installed behind the surface cooler (cooling section) to reheat the low-temperature air after cooling and dehumidification. After the electric heater, there is a fan section for ventilation.

[0003] In the existing technology, there is no isolation between the electric heater and the fan section. When the unit stops operating, there is a possibility that an operator may enter the interior of the unit through the inspection door (such as repairing the motor, replacing the fan belt, lubricating the fan bearing, etc.). At this time, the temperature of the electric heater may not have dropped to a sufficiently safe level, which poses a safety hazard of scalding personnel. Therefore, the utility model provides a protective grid for high-temperature isolation of electric heating in an air handling unit. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model provides a protective grid for high-temperature isolation of electric heating in an air handling unit to solve the problems raised in the above background technique.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A protective grid for high-temperature isolation of electric heating in an air handling unit includes a frame body and protective grid blades. An electric heating tube is fixedly installed inside the frame body. A fixing plate is fixedly installed on the right side of the frame body. A driving component is arranged on the top of the fixing plate. A first rotating rod is arranged inside the fixing plate through the driving component. A transmission component is arranged on the surface of the first rotating rod. A second rotating rod is arranged on the surface of the first rotating rod through the transmission component. An installation plate is fixedly installed on the surface of the second rotating rod. A first installation hole is opened on the front side of the installation plate. A bolt is threadedly connected inside the first installation hole. A second installation hole is penetrated through the surface of the protective grid blade, and the bolt is lapped with the second installation hole.

[0007] Preferably, the driving component includes a driving motor arranged on the top of the fixing plate. A rotating shaft is fixedly installed at the output end of the driving motor. A driving gear is fixedly installed on the surface of the rotating shaft. A driven gear is meshed on the surface of the driving gear. The driven gear is fixedly connected with the first rotating rod.

[0008] Preferably, the transmission component includes a first bevel gear arranged on the surface of the first rotating rod. A second bevel gear is meshed on the surface of the first bevel gear, and the second bevel gear is fixedly connected with the second rotating rod.

[0009] Preferably, the number of the protective grid blades is multiple, and the multiple protective grid blades are distributed in an array.

[0010] Preferably, the number of the second mounting holes is multiple, and the multiple second mounting holes are symmetrically distributed.

[0011] Preferably, the first rotating rod has a cylindrical structure, and the first rotating rod is rotatably connected to the fixing plate.

[0012] Preferably, the second rotating rod is located directly in front of the electric heating tube, and the second rotating rod is rotatably connected to the frame body.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: for the protective grid for high-temperature isolation of the electric heating in the air handling machine, through the driving assembly, the first rotating rod rotates, so that the transmission assembly drives the second rotating rod and the mounting plate to rotate until the mounting plate rotates upward to a state where the first mounting hole is horizontal, the protective grid blade is lapped on the mounting plate, and the bolt is passed through the second mounting hole and installed into the first mounting hole, thereby fixing the protective grid blade on the mounting plate. Through the driving assembly, the first rotating rod rotates, so that the transmission assembly drives the second rotating rod, the mounting plate, and the protective grid blade to rotate until the protective grid blade rotates downward to a proper tilting angle. The electric heating of the electric heating tube can be isolated by the protective grid blade, and ventilation is not affected. It ensures that the operator's fingers cannot touch the surface of the electric heating tube, eliminating the possible high-temperature injury caused by the electric heating, that is, ensuring personal safety and not affecting the normal operation of the equipment. Description of the Drawings

[0014] Figure 1 is a three-dimensional perspective view of the present utility model;

[0015] Figure 2 is of the present utility model Figure 1 an enlarged view of part A in;

[0016] Figure 3 is a rear view of the structure of the present utility model;

[0017] Figure 4 is a rear sectional view of the structure of the present utility model;

[0018] Figure 5 is a split view of the partial structure of the present utility model.

[0019] In the figure: 1. Frame body; 2. Electric heating tube; 3. Fixed plate; 4. Driving motor; 5. Rotating shaft; 6. Driving gear; 7. Driven gear; 8. First rotating rod; 9. First bevel gear; 10. Second bevel gear; 11. Second rotating rod; 12. Mounting plate; 13. First mounting hole; 14. Bolt; 15. Protective grid blade; 16. Second mounting hole. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Refer to Figures 1-5, A protective grid for high-temperature isolation of electric heating in an air handling unit, comprising a frame body 1 and protective grid blades 15. An electric heating tube 2 is fixedly installed inside the frame body 1. A fixing plate 3 is fixedly installed on the right side of the frame body 1. A driving component is arranged on the top of the fixing plate 3. A first rotating rod 8 is arranged inside the fixing plate 3 through the driving component. The first rotating rod 8 is in a cylindrical structure and is rotatably connected to the fixing plate 3. The driving component includes a driving motor 4 arranged on the top of the fixing plate 3. A rotating shaft 5 is fixedly installed at the output end of the driving motor 4. A driving gear 6 is fixedly installed on the surface of the rotating shaft 5. A driven gear 7 is meshed on the surface of the driving gear 6. The driven gear 7 is fixedly connected to the first rotating rod 8, facilitating providing driving force for the rotation of the first rotating rod 8. A transmission component is arranged on the surface of the first rotating rod 8. A second rotating rod 11 is arranged on the surface of the first rotating rod 8 through the transmission component. The second rotating rod 11 is located directly in front of the electric heating tube 2 and is rotatably connected to the frame body 1. The transmission component includes a first bevel gear 9 arranged on the surface of the first rotating rod 8. A second bevel gear 10 is meshed on the surface of the first bevel gear 9, and the second bevel gear 10 is fixedly connected to the second rotating rod 11, facilitating the transmission function, so that when the first rotating rod 8 rotates, it can drive the second rotating rod 11 to rotate simultaneously. An installation plate 12 is fixedly installed on the surface of the second rotating rod 11. A first installation hole 13 is opened on the front side of the installation plate 12. A bolt 14 is threadedly connected inside the first installation hole 13. A second installation hole 16 penetrates through the surface of the protective grid blade 15, and the bolt 14 is lapped with the second installation hole 16. The number of the second installation holes 16 is multiple, and the multiple second installation holes 16 are symmetrically distributed, facilitating the more stable installation of the protective grid blade 15 on the installation plate 12. The number of the protective grid blades 15 is multiple, and the multiple protective grid blades 15 are arranged in an array. For this protective grid for high-temperature isolation of electric heating in an air handling unit, through the driving component, the first rotating rod 8 rotates, so that the transmission component drives the second rotating rod 11 and the installation plate 12 to rotate until the installation plate 12 rotates upward to a state where the first installation hole 13 is horizontal. The protective grid blade 15 is lapped on the installation plate 12, and the bolt 14 is passed through the second installation hole 16 and installed into the first installation hole 13, thereby fixing the protective grid blade 15 on the installation plate 12. Through the driving component, the first rotating rod 8 rotates, so that the transmission component drives the second rotating rod 11, the installation plate 12, and the protective grid blade 15 to rotate until the protective grid blade 15 rotates downward to a suitable tilting angle. Through the protective grid blade 15, the electric heating of the electric heating tube 2 can be isolated, and ventilation is not affected. It ensures that the operator's fingers cannot touch the surface of the electric heating tube 2, eliminating the high-temperature injury that electric heating may bring, that is, ensuring personal safety and not affecting the normal operation of the equipment.

[0022] All the electrical components appearing in this article are connected to an external main controller and 220V mains power supply, and the main controller can be a conventional known device such as a computer for control purposes.

[0023] During use: Start the drive motor 4, causing the rotating shaft 5 to rotate, causing the driving gear 6 to rotate, causing the driven gear 7 to rotate, causing the first rotating rod 8 to rotate, causing the first bevel gear 9 to rotate simultaneously, causing the second bevel gear 10 to rotate simultaneously, causing the second rotating rod 11 to rotate simultaneously, causing the mounting plate 12 to rotate until the mounting plate 12 rotates upward until the first mounting hole 13 is in a horizontal state. Lap the protective grille blade 15 on the mounting plate 12, pass the bolt 14 through the second mounting hole 16 and install it into the first mounting hole 13, thereby fixing the protective grille blade 15 on the mounting plate 12. Until all the protective grille blades 15 are installed, reverse-start the drive motor 4, causing the rotating shaft 5 to rotate, causing the driving gear 6 to rotate, causing the driven gear 7 to rotate, causing the first rotating rod 8 to rotate, causing the first bevel gear 9 to rotate simultaneously, causing the second bevel gear 10 to rotate simultaneously, causing the second rotating rod 11 to rotate simultaneously, causing the mounting plate 12 to rotate, causing the protective grille blade 15 to rotate with the mounting plate 12 until the protective grille blade 15 rotates downward to a suitable tilting angle, thereby isolating the electric heating of the electric heating tube 2 and not affecting ventilation at the same time.

[0024] In summary, for the protective grille used for high-temperature isolation of the electric heating tube in the air handling machine, the drive assembly causes the first rotating rod 8 to rotate, and the transmission assembly drives the second rotating rod 11 and the mounting plate 12 to rotate until the mounting plate 12 rotates upward until the first mounting hole 13 is in a horizontal state. Lap the protective grille blade 15 on the mounting plate 12, pass the bolt 14 through the second mounting hole 16 and install it into the first mounting hole 13, thereby fixing the protective grille blade 15 on the mounting plate 12. The drive assembly causes the first rotating rod 8 to rotate, and the transmission assembly drives the second rotating rod 11, the mounting plate 12, and the protective grille blade 15 to rotate until the protective grille blade 15 rotates downward to a suitable tilting angle. The electric heating of the electric heating tube 2 can be isolated by the protective grille blade 15, and ventilation is not affected. It ensures that the operator's fingers cannot touch the surface of the electric heating tube 2, eliminating the high-temperature damage that may be caused by electric heating, that is, ensuring personal safety and not affecting the normal operation of the equipment, and solving the problems raised in the above background technology.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A protective grille for high temperature isolation of electrical heating of an air handling machine, comprising a frame (1) and protective grille blades (15), characterized in that: An electric heating tube (2) is fixedly installed inside the frame (1); a fixing plate (3) is fixedly installed on the right side of the frame (1); a driving assembly is arranged on the top of the fixing plate (3); a first rotating rod (8) is arranged inside the fixing plate (3) through the driving assembly; a transmission assembly is arranged on the surface of the first rotating rod (8); a second rotating rod (11) is arranged on the surface of the first rotating rod (8) through the transmission assembly; a mounting plate (12) is fixedly installed on the surface of the second rotating rod (11); a first mounting hole (13) is opened on the front side of the mounting plate (12); a bolt (14) is threadedly connected inside the first mounting hole (13); a second mounting hole (16) is penetrated on the surface of the protective grille blade (15), and the bolt (14) and the second mounting hole (16) are overlapped.

2. A protective grid for high temperature isolation of electrical heating of air handling machines according to claim 1, characterized in that: The driving assembly comprises a driving motor (4) arranged on the top of the fixing plate (3); a rotating shaft (5) is fixedly mounted on the output end of the driving motor (4); a driving gear (6) is fixedly mounted on the surface of the rotating shaft (5); a driven gear (7) is meshedly mounted on the surface of the driving gear (6); and the driven gear (7) is fixedly connected to a first rotating rod (8).

3. A protective grid for high temperature isolation of electrical heating of air handling machines according to claim 1, characterized in that: The transmission assembly comprises a first bevel gear (9) arranged on the surface of a first rotating rod (8), a second bevel gear (10) is meshingly arranged on the surface of the first bevel gear (9), and the second bevel gear (10) is fixedly connected to the second rotating rod (11).

4. A protective grid for high temperature isolation of electrical heating of air handling machines according to claim 1, characterized in that: The number of the protective grille blades (15) is multiple, and the multiple protective grille blades (15) are distributed in an array.

5. A protective grid for high temperature isolation of electrical heating of air handling machines according to claim 1, characterized in that: The number of the second mounting holes (16) is multiple, and the multiple second mounting holes (16) are symmetrically distributed.

6. A protective grid for high temperature isolation of electrical heating of air handling machines according to claim 1, characterized in that: The first rotating rod (8) is a cylindrical structure, and the first rotating rod (8) is rotatably connected to the fixed plate (3).

7. A protective grid for high temperature isolation of electrical heating of an air handling machine according to claim 1, characterized in that: The second rotating rod (11) is located directly in front of the electric heating tube (2), and the second rotating rod (11) is rotatably connected to the frame (1).

Images