Modular mounting rack for tunnel fan

Abstract

The utility model discloses a tunnel fan modular mounting rack, which relates to the technical field of tunnel fan mounting racks, and comprises a base frame, a mounting frame and a fixing rack, the base frame is fixed at the top of a tunnel, the mounting frame is hung below the base frame, and the fixing rack is rotatably connected to the bottom of the mounting frame; the mounting frame is provided with an upper sliding groove and a lower sliding groove, the upper sliding groove and the lower sliding groove are provided with an upper sliding block and a lower sliding block respectively, a worm gear is arranged between the upper sliding block and the lower sliding block, the worm gear is provided with a vertical deflection shaft, the upper sliding block and the lower sliding block are rotationally connected with the deflection shaft, the bottom of the deflection shaft is connected with a deflection plate, and the fixing frame is connected with the deflection plate. The worm gear is further correspondingly provided with a worm, the worm is provided with a polygonal hole, the polygonal hole is provided with a polygonal rod in a coupling mode, and the polygonal rod is correspondingly provided with a driving motor. According to the utility model, the mounting spacing of a plurality of tunnel fans can be regulated and controlled, and the plurality of tunnel fans can be driven to rotate through the same motor.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel fan mounting frames, and in particular to a modular mounting frame for tunnel fans. Background Art

[0002] Tunnel fans are the core equipment in the tunnel ventilation system, mainly used to provide fresh air, remove harmful gases and dust in the tunnel to ensure the air quality in the tunnel and the safety of construction workers. With the continuous progress of the scale and technology of tunnel projects, the importance of tunnel fans in ensuring the safety of tunnel construction and operation environment has become increasingly prominent. The types of tunnel fans mainly include axial fans and centrifugal fans. Axial fans push the air flow by rotating the blades, which are suitable for ventilation requirements with large air volume and low wind pressure and have the characteristics of convenient installation; centrifugal fans rotate the impeller to throw the air flow from the center to the periphery and are suitable for occasions with high wind pressure. In recent years, with the introduction of intelligent control systems, modern tunnel fans can automatically adjust their operating states according to parameters such as air quality, temperature and humidity in the tunnel to achieve more efficient and energy-saving ventilation effects. However, despite the technological progress, the following problems still exist in the installation and application of tunnel fans:

[0003] (1) Tunnel fans are usually large in volume and heavy in weight, and large mechanical equipment is required for their transportation and installation, and the construction is complex; in addition, the wiring and connection of the power and control systems of tunnel fans are also relatively complex, and the reliability and safety need to be ensured during the construction process. In addition, when arranging tunnel fans in the tunnel, multiple tunnel fans are usually arranged at one position, and the existing technology usually adopts independent installation. Given the high cost of tunnel fan installation, the independently installed fans not only increase the engineering difficulty, but also pose high requirements for construction accuracy and technology;

[0004] (2) A significant disadvantage of tunnel fans is that they cannot rotate, which limits their ventilation effect in the tunnel. After the fan is fixedly installed, it can only ventilate in one direction. When the ventilation demand in the tunnel changes or the ventilation direction needs to be adjusted at different construction stages, the fixed fan position is difficult to meet the new requirements. In addition, the maintenance and repair of fixed fans are relatively difficult. Since the fan cannot rotate, maintenance personnel can only operate in a limited space, increasing the difficulty and risk of maintenance. Finally, the lack of flexibility of tunnel fans also limits their ability to adapt to different working conditions and cannot adjust the air volume and ventilation direction in real time according to the demand, which may have an adverse impact on the construction progress and the operation safety of the tunnel.

[0005] Therefore, based on the above disadvantages of tunnel fans, it is necessary to further improve the existing technology. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a modular mounting frame for a tunnel fan to solve the above problems.

[0007] The present utility model is realized by the following technical solutions:

[0008] A modular mounting frame for a tunnel fan includes a base frame, a mounting frame, and a fixing frame. The base frame is fixed to the top of the tunnel, the mounting frame is hung under the base frame, and the fixing frame is rotatably connected to the bottom of the mounting frame.

[0009] The mounting frame is provided with an upper sliding groove and a lower sliding groove. The upper sliding groove and the lower sliding groove are respectively provided with an upper sliding block and a lower sliding block. A worm gear is arranged between the upper sliding block and the lower sliding block. The worm gear is provided with a vertical deflection shaft. Both the upper sliding block and the lower sliding block are rotatably connected to the deflection shaft. The bottom of the deflection shaft is connected with a deflection plate, and the fixing frame is connected with the deflection plate.

[0010] The worm gear is also correspondingly provided with a worm. The worm is provided with a polygonal hole, and a polygonal rod is coupled in the polygonal hole. The polygonal rod is correspondingly provided with a driving motor.

[0011] Generally speaking, in the present utility model, the base frame is fixed to the top of the tunnel. A mounting frame is hung under the base frame. At least one upper sliding block and one lower sliding block are arranged inside the mounting frame. A deflection shaft is rotatably connected to the upper sliding block and the lower sliding block correspondingly. A deflection plate is fixed to the bottom of the lower sliding block of the deflection shaft. A tunnel fan is fixed to the deflection plate. A worm gear is also coaxially fixed to the shaft section between the upper sliding block and the lower sliding block of the deflection shaft. The rotation of the worm gear can drive the deflection shaft to rotate, and then drive the tunnel fan at the bottom to rotate. The worm gear is also correspondingly provided with a worm. The worm is provided with a polygonal hole whose extending direction is the same as the axial direction. A polygonal rod is coupled inside the polygonal hole. The extending direction of the polygonal rod is the same as the extending direction of the upper sliding groove. When the upper sliding block and the lower sliding block drive the tunnel fan to slide along the extending direction of the upper sliding groove, the worm gear can drive the worm to slide along the extending direction of the polygonal rod, so that the position of the tunnel fan can be flexibly adjusted.

[0012] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0013] 1. In the prior art, tunnel fans are usually directly fixed to the tunnel top. Although this fixing method is simple, it has many defects. First, the vibration during the fan operation will be directly transmitted to the tunnel structure. Long-term use may affect the tunnel stability and shorten the fan lifespan, thus increasing the maintenance cost. Second, this fixing method limits the adjustment flexibility of the fan. Once the installation position is determined, it is difficult to adjust the fan angle and position according to specific ventilation requirements, thereby reducing the ventilation effect. In addition, the fan directly fixed to the top also increases the maintenance difficulty. When performing maintenance, the staff need to work at heights, presenting a relatively high safety hazard. For multiple fans, it is very difficult to achieve synchronous rotation control with the traditional installation method, resulting in low operation efficiency and complex management. In contrast, the modular installation frame adopts an adjustable and shock-absorbing structural design, which can flexibly control the fan position and angle, reduce vibration transmission, and at the same time support the synchronous operation of multiple fans, greatly enhancing the equipment stability, maintenance convenience, and ventilation efficiency;

[0014] The modular design of the present utility model separates the fan installation frame from the fan body and supports the flexible layout of multiple fans. By adjusting the fan spacing, different tunnel ventilation requirements can be met, greatly improving the installation adaptability and layout flexibility. Second, the installation frame has excellent shock-absorbing performance. A T-shaped hanging plate is provided at the top of the installation frame and is equipped with shock pads, effectively reducing the transmission of vibration generated during the fan operation to the base frame and tunnel structure, reducing the risk of damage to the tunnel structure, and extending the service life of the equipment. In addition, the worm and worm gear structure provides a self-locking function, ensuring that the fan can be automatically locked after being adjusted to any angle, preventing angle deviation caused by loosening, and reducing the dependence on additional devices such as brakes, thereby reducing the overall system weight. This design also supports the synchronous operation of multiple fans. Multiple fans achieve synchronous rotation through the coupling of the same polygonal rod and worm and worm gear, greatly simplifying the control system and improving the operation efficiency. The installation and maintenance processes are also more convenient. The fan is fixed on a slidable deflection plate, and the position adjustment is convenient. It is locked by fixing bolts to ensure safety during maintenance. Finally, the installation frame has a compact structure. Through the design of the partition cavity channel body and the rectangular channel, the tunnel top space is fully saved, leaving more space for the installation of other equipment. Description of the Drawings

[0015] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0016] Figure 1 is the structural schematic diagram of the embodiment;

[0017] Figure 2 is the cutting schematic diagram of the embodiment;

[0018] Figure 3 is Figure 2Schematic diagram of the details at location A in [the figure];

[0019] Figure 4 Schematic diagram of the structure from the bottom perspective of the embodiment;

[0020] Figure 5 is Figure 4 Schematic diagram of the details at location B in [the figure].

[0021] The reference numerals represent: 1 - drive motor, 2 - base frame, 3 - mounting frame, 4 - fixing frame, 5 - fan, 6 - silencer, 7 - shock pad, 8 - upper slider, 9 - lower slider, 10 - worm gear, 11 - lower chute, 12 - upper chute, 13 - worm, 14 - polygonal rod, 15 - fixing bolt, 16 - deflection shaft, 17 - deflection plate, 18 - T-shaped hanging plate. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with the embodiments and the accompanying drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model.

[0023] As Figures 1 to 5 shown, this embodiment relates to a modular mounting rack for a tunnel fan 5, including a base frame 2, a mounting frame 3 and a fixing frame 4. Among them, the base frame 2 is fixed on the top of the tunnel. The base frame 2 of the embodiment is provided with a partition cavity channel, and a communication port is provided at the bottom of the partition cavity channel. The top of the mounting frame 3 is provided with a T-shaped hanging plate 18. The mounting frame 3 is hung in the partition cavity channel through the T-shaped hanging plate 18, and the rest of the mounting frame 3 is arranged outside (at the bottom) of the partition cavity channel through the communication port. A shock pad 7 is arranged between the T-shaped hanging plate 18 and the base frame 2, and the shock pad 7 is used to reduce the vibration transmitted from the mounting frame 3 to the base frame 2.

[0024] Specifically, a rectangular channel extending in a straight line direction is provided at the bottom of the installation frame 3. An upper sliding groove 12 is provided above the rectangular channel, and an upper sliding block 8 is arranged in the upper sliding groove 12. A lower sliding groove 11 is provided below the rectangular channel, and a lower sliding block 9 is arranged in the lower sliding groove 11. Both the upper sliding groove 12 and the lower sliding groove 11 are straight sliding grooves. The upper sliding block 8 and the lower sliding block 9 can slide in the corresponding upper sliding groove 12 and lower sliding groove 11 respectively. The upper sliding block 8 and the lower sliding block 9 are both rotatably connected to the same vertically arranged deflection shaft 16. The lower sliding groove 11 communicates with the inside and outside of the rectangular channel. The deflection shaft 16 extends downward through the lower sliding groove 11 and is connected to a deflection plate 17 arranged at the bottom of the rectangular channel. The rotation of the deflection shaft 16 can drive the rotation of the deflection plate 17. A fixing frame 4 is further provided at the bottom of the deflection plate 17. The fixing frame 4 is used to fix the tunnel fan 5 (silencers 6 are fixed at both ends of the tunnel fan 5 for noise reduction). The rotation of the deflection plate 17 can drive the rotation of the fixing frame 4, and the rotation of the fixing frame 4 can drive the rotation of the tunnel fan 5. In the embodiment, by fixing the tunnel fan 5 below the deflection plate 17, the rotation of the deflection plate 17 can drive the rotation of the tunnel fan 5.

[0025] Further, a worm gear 10 is coaxially fixed to the shaft section between the upper sliding block 8 and the lower sliding block 9. The rotation of the worm gear 10 can drive the rotation of the deflection shaft 16, and further drive the rotation of the tunnel fan 5 at the bottom. A worm 13 is correspondingly arranged for the worm gear 10. The worm 13 is provided with a polygonal hole whose extending direction is the same as the axis direction. A polygonal rod 14 is coupled inside the polygonal hole. The extending direction of the polygonal rod 14 is the same as the extending direction of the upper sliding groove 12. During the process that the upper sliding block 8 and the lower sliding block 9 drive the tunnel fan 5 to slide along the extending direction of the upper sliding groove 12, the worm gear 10 can drive the worm 13 to slide along the extending direction of the polygonal rod 14 (sliding on the rod body) and always maintain the coupling state with the worm gear 10. When the polygonal rod 14 rotates, the worm 13 can drive the worm gear 10 to rotate, and further drive the rotation of the tunnel fan 5. Correspondingly, a driving motor 1 is further arranged for the polygonal rod 14. The driving motor 1 drives the rotation of the polygonal rod 14.

[0026] In the embodiment, the tunnel fan 5 is fixed to the bottom of the deflection plate 17, and the deflection plate 17 is fixed to the deflection shaft 16. This setting enables multiple tunnel fans 5 to be arranged in the same mounting frame 3, and the distance between multiple tunnel fans 5 can be custom-controlled, making the arrangement of multiple tunnel fans 5 more flexible. In addition, by adopting the driving rotation setting of the worm gear 10 and the worm 13, the tunnel fan 5 can be self-locked at any angle of rotation (self-locking effect of the worm gear 10 and the worm 13), reducing the overall weight of the equipment (reducing devices such as brakes). Additionally, the worm 13 is slidably arranged on the polygonal rod 14, enabling multiple worm gears 10 and worms 13 to be arranged on the polygonal rod 14 (corresponding to multiple tunnel fans 5). When the same driving motor 1 drives the polygonal rod 14 to rotate, the polygonal rod 14 can drive multiple tunnel fans 5 to rotate synchronously.

[0027] Further, the top of the deflection plate 17 is attached to the bottom of the mounting frame 3, and the deflection plate 17 is vertically penetrated with a threaded hole, and a fixing bolt 15 is coupled to the threaded hole. The fixing bolt 15 is used to fix the deflection plate 17. After the deflection plate slides to the appropriate position, by tightening the fixing bolt 15, the fixing bolt 15 abuts against the bottom of the mounting frame 3, thereby fixing the deflection plate 17 and ensuring that the distance between multiple tunnel fans 5 does not change.

[0028] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A modular mounting frame for a tunnel fan (5), comprising a base frame (2), a mounting frame (3) and a fixing frame (4), characterized in that, The base frame (2) is fixed to the top of the tunnel, the mounting frame (3) is hung under the base frame (2), and the fixing frame (4) is rotatably connected to the bottom of the mounting frame (3). The mounting frame (3) is provided with an upper sliding groove (12) and a lower sliding groove (11). The upper sliding groove (12) and the lower sliding groove (11) are respectively provided with an upper sliding block (8) and a lower sliding block (9). A worm gear (10) is arranged between the upper sliding block (8) and the lower sliding block (9). The worm gear (10) is provided with a vertical deflection shaft (16). Both the upper sliding block (8) and the lower sliding block (9) are rotatably connected to the deflection shaft (16). The bottom of the deflection shaft (16) is connected with a deflection plate (17). The fixing frame (4) is connected with the deflection plate (17). The worm gear (10) is also correspondingly provided with a worm (13). The worm (13) is provided with a polygonal hole, and a polygonal rod (14) is coupled to the polygonal hole. The polygonal rod (14) is correspondingly provided with a driving motor (1).

2. The modular mounting bracket for a tunnel fan (5) according to claim 1, characterized in that, The mounting frame (3) is provided with a rectangular channel extending in a straight line direction. The upper sliding groove (12) is arranged at the upper part of the rectangular channel, and the upper sliding block (8) is arranged in the upper sliding groove (12). The lower sliding groove (11) is arranged at the lower part of the rectangular channel, and the lower sliding block (9) is arranged in the lower sliding groove (11). Both the upper sliding groove (12) and the lower sliding groove (11) are straight sliding grooves. The upper sliding block (8) and the lower sliding block (9) can respectively slide in the corresponding upper sliding groove (12) and lower sliding groove (11). The lower sliding groove (11) communicates with the inside and outside of the rectangular channel.

3. The modular mounting frame of a tunnel fan (5) according to claim 2, characterized in that, The deflection plate (17) is arranged outside the rectangular channel of the mounting frame (3). When the upper sliding block (8) slides in the upper sliding groove (12), it can drive the deflection plate (17) to move along the direction of the upper sliding groove (12).

4. The modular mounting frame of a tunnel fan (5) as claimed in claim 1, wherein The extending direction of the polygonal rod (14) is the same as the extending direction of the first sliding groove. When the upper sliding block (8) slides in the upper sliding groove (12), it can drive the worm gear (10) to move along the extending direction of the upper sliding groove (12). When the upper sliding block (8) slides in the upper sliding groove (12), the deflection plate (17) can move synchronously along the direction of the sliding groove.

5. The modular mounting frame of a tunnel fan (5) as claimed in claim 1, wherein, The top of the deflection plate (17) is attached to the bottom of the mounting frame (3). The deflection plate (17) is vertically provided with a threaded hole, and a fixing bolt (15) is coupled to the threaded hole.

6. The modular mounting bracket of a tunnel fan (5) according to claim 1, characterized in that, A shock pad (7) is arranged between the base frame (2) and the mounting frame (3); the fixing frame (4) is used to fix the tunnel fan (5).

Images