Tunnel fan suspension device

Abstract

The utility model discloses a tunnel fan suspension device relates to tunnel fan hoisting structure technical field, including the embedded part of symmetrical setting, the bottom of embedded part is provided with fan fixed cover, and the connecting seat is set up between two fan fixed cover and is located the top of fan fixed cover and is provided with the first inclined plane, and the first inclined plane is integrally processed on the connecting seat symmetry, and two embedded parts opposite side all are provided with the second inclined plane of first inclined plane joint, and the embedded part and are located second inclined plane department fixed link limit guide block, the utility model discloses through the second inclined plane of embedded part and the first inclined plane of connecting seat interlock, has realized the independent positioning and temporary fixed of embedded part and connecting seat, does not need manual sustained to lift the connecting seat when the welding operation, has reduced the labor intensity of operating personnel greatly, has shortened the assembly time consumption simultaneously, has promoted the installation efficiency of tunnel fan suspension device.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel fan hoisting structure, specifically a tunnel fan suspension device. Background Technology

[0002] In tunnel engineering, tunnel ventilation fans are key equipment to ensure tunnel ventilation and maintain air circulation. They are usually fixed to the top of the tunnel by a suspension device. In the installation process of existing tunnel ventilation fan suspension devices, it is often necessary to first connect the connecting seat to the embedded part and weld it in place.

[0003] However, traditional embedded parts and connectors are mostly planar docking structures. When docking, they lack effective positioning and temporary fixing structures. It is necessary to rely on manual continuous lifting of the connector to maintain its docking state with the embedded parts. This not only increases the labor intensity of operators, but also easily causes the docking position to shift due to unstable lifting, affecting the assembly accuracy. At the same time, there are safety hazards in the operation due to being at a height during manual lifting, and the assembly efficiency is low, making it difficult to meet the batch and high-efficiency construction needs in tunnel engineering. Utility Model Content

[0004] The purpose of this utility model is to provide a tunnel ventilation fan suspension device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including symmetrically arranged embedded parts, and a fan fixing cover is provided at the bottom of the embedded parts; A connecting seat is provided between the two fan mounting covers and at the top of the fan mounting covers. The connecting seat has a first inclined surface integrally machined symmetrically. A second inclined surface that engages with the first inclined surface is provided on the opposite side of the two embedded parts.

[0006] In a further embodiment, the embedded part is fixedly connected to a limiting guide block at the second inclined surface, and the connecting seat is provided with a limiting guide groove at the first inclined surface that is slidably connected to the limiting guide block.

[0007] In a further embodiment, each of the two fan mounting covers has an ear fixed to one end facing the other, and the two ears are fastened together by bolts.

[0008] In a further embodiment, a reinforcing rib is fixed to the side of the embedded part away from the second inclined surface.

[0009] In a further embodiment, a support rod is fixedly connected inside the connecting seat, and the number of the support rods is two and they are arranged symmetrically.

[0010] In a further embodiment, a limiting plate is fixedly attached to the surface of the fan mounting cover, and the limiting plate and the connecting seat are locked together by bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves autonomous positioning and temporary fixation of the embedded part and the connecting seat by interlocking the second inclined surface of the embedded part with the first inclined surface of the connecting seat. During welding operations, there is no need for manual continuous support of the connecting seat, which greatly reduces the labor intensity of operators, shortens the assembly time, and improves the installation efficiency of the tunnel ventilation fan suspension device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is an exploded view of the overall structure of an embodiment of the present utility model.

[0013] In the figure: 1. Embedded part; 2. Fan fixing cover; 3. Connecting seat; 4. First inclined surface; 5. Second inclined surface; 6. Limiting guide block; 7. Limiting guide groove; 8. Ear; 9. Reinforcing rib block; 10. Support rod; 11. Limiting plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This embodiment discloses a tunnel ventilation fan suspension device, including symmetrically arranged embedded parts 1. A ventilation fan fixing cover 2 is provided at the bottom of each embedded part 1. Ears 8 are fixedly connected to opposite ends of the two ventilation fan fixing covers 2, and the two ears 8 are fastened together by bolts. A reinforcing rib block 9 is fixedly connected to the side of the embedded part 1 away from the second inclined surface 5. Figure 1 and Figure 2As shown, the symmetrically arranged embedded parts 1 serve as the connection base between the suspension device and the tunnel structure. The symmetrical layout ensures even distribution of force on the suspension device, guaranteeing stable load-bearing capacity for the fan. It also provides a unified installation benchmark for the subsequent assembly of the connecting seat 3 and the fan mounting cover 2. The fan mounting cover 2 directly wraps around and fixes the main structure of the tunnel fan, transferring the fan's weight to the embedded parts 1. It is the core load-bearing component for fixing the fan to the suspension device. Its arc-shaped structure adapts to the cylindrical shape of the fan, improving the fit and enhancing stability. Qualitatively, by using the ears 8 at the ends of the two fan fixing covers 2 in conjunction with bolts, it is possible to adapt and clamp fans of different diameter specifications. At the same time, it further strengthens the connection between the fan fixing cover 2 and the fan, preventing the fan from loosening in the tunnel airflow or vibration environment. The reinforcing ribs 9 of the embedded part 1 enhance the structural strength and deformation resistance of the embedded part 1 itself, preventing the embedded part 1 from bending or breaking due to long-term bearing of the fan weight or tunnel environment vibration. At the same time, it disperses the stress at the connection between the embedded part 1 and the tunnel structure, extending the service life of the embedded part 1.

[0016] Furthermore, a connecting seat 3 is provided between the two fan mounting covers 2 and at the top of the fan mounting covers 2. The connecting seat 3 has symmetrically integrally machined first inclined surfaces 4. Each of the two embedded parts 1 has a second inclined surface 5 on its opposite side that engages with the first inclined surface 4. A limiting guide block 6 is fixedly connected to the embedded part 1 at the second inclined surface 5. The connecting seat 3 has a limiting guide groove 7 at the first inclined surface 4 that slides with the limiting guide block 6. Figure 1 and Figure 2As shown, the connecting seat 3, located at the top between the two fan mounting covers 2, serves as the intermediate hub connecting the two symmetrical embedded parts 1 and the fan mounting covers 2. It bears the dual functions of force transmission and assembly positioning reference. The first inclined surface 4 of the connecting seat 3, symmetrically machined as a single piece, and the second inclined surface 5 on the opposite side of the embedded part 1, enable rapid positioning, temporary fixing, and force optimization between the embedded part 1 and the connecting seat 3. This is the core structure of this device, allowing for welding without manual support. Its specific functions can be divided into three points: First, guiding and positioning: the inclined surface structure has a natural guiding effect. During assembly, simply aligning the first inclined surface 4 of the connecting seat 3 with the second inclined surface 5 of the embedded part 1 allows for rapid fitting and docking using gravity, eliminating the need for repeated adjustments and significantly improving assembly efficiency. Second, temporary fixing: the inclined surface, after being engaged, forms a stable support relationship, allowing the connecting seat 3 to maintain its docking state without continuous manual support before welding, reducing the labor intensity of operators and preventing docking offset caused by unstable support. Third, force optimization: the engaged inclined surface can... The vertical tension borne by the connecting seat 3 is converted into pressure along the inclined plane and transmitted to the embedded part 1, increasing the contact area of ​​the force-bearing, reducing local stress concentration, and improving the load-bearing stability of the connection. In addition, the symmetrical integrated processing design can ensure the coaxiality and parallelism of the two first inclined planes 4, ensuring the consistency of the docking between the connecting seat 3 and the embedded parts 1 on both sides, and further improving the force balance of the device. The limiting guide block 6 of the embedded part 1 and the limiting guide groove 7 of the connecting seat 3 assist the inclined plane snap-fit ​​structure to achieve precise positioning, while limiting lateral displacement and enhancing connection stability. Specifically, the functions include: first, on the basis of the inclined plane snap-fit, the sliding cooperation between the limiting guide block 6 and the guide groove can further limit the relative displacement of the embedded part 1 and the connecting seat 3 in the horizontal direction, avoiding left and right offset during docking and ensuring the assembly accuracy of the two; second, it is a reinforcement to prevent loosening. After welding, the interlocking relationship between the guide block and the guide groove can form an additional constraint, effectively resisting the lateral force generated by airflow disturbance and fan operation vibration in the tunnel, and preventing the connection from loosening.

[0017] Finally, a support rod 10 is fixedly connected inside the connecting seat 3. There are two support rods 10 arranged symmetrically. A limit plate 11 is fixedly connected to the surface of the fan mounting cover 2. The limit plate 11 and the connecting seat 3 are locked together by bolts. Figure 1 and Figure 2As shown, the symmetrical support rods 10 inside the connecting seat 3 enhance the structural strength and deformation resistance of the connecting seat 3. By setting symmetrical support rods 10 inside the connecting seat 3, the vertical load borne by the connecting seat 3 can be effectively distributed, preventing it from bending or deforming due to long-term stress or vibration, thereby improving the load-bearing stability and service life of the entire suspension device. The limiting plate 11 on the surface of the fan fixing cover 2 realizes the detachable fastening connection between the fan fixing cover 2 and the connecting seat 3. The limiting plate 11 and the connecting seat 3 are locked with bolts. On the one hand, it can further strengthen the connection between the fan fixing cover 2 and the connecting seat 3 and enhance the overall structural rigidity of the device. On the other hand, the detachable bolt connection method facilitates the later inspection, maintenance or replacement of the fan.

[0018] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel ventilation fan suspension device, comprising symmetrically arranged embedded parts (1), characterized in that: The bottom of the embedded part (1) is provided with a fan fixing cover (2); A connecting seat (3) is provided between the two fan fixing covers (2) and at the top of the fan fixing cover (2). The connecting seat (3) has a first inclined surface (4) integrally machined symmetrically. The two embedded parts (1) each have a second inclined surface (5) that engages with the first inclined surface (4) on their opposite sides.

2. The tunnel ventilation fan suspension device according to claim 1, characterized in that: The embedded part (1) is fixedly connected to the limiting guide block (6) at the second inclined surface (5), and the connecting seat (3) is provided with a limiting guide groove (7) that is slidably connected to the limiting guide block (6) at the first inclined surface (4).

3. The tunnel ventilation fan suspension device according to claim 1, characterized in that: Each of the two fan mounting covers (2) has an ear (8) fixed to one end, and the two ears (8) are fastened together by bolts.

4. The tunnel ventilation fan suspension device according to claim 1, characterized in that: The embedded part (1) is fixed with a reinforcing rib (9) on the side away from the second inclined surface (5).

5. A tunnel ventilation fan suspension device according to claim 1, characterized in that: The connecting seat (3) is internally fixed with a support rod (10), and there are two support rods (10) arranged symmetrically.

6. A tunnel ventilation fan suspension device according to claim 1, characterized in that: The surface of the fan mounting cover (2) is fixedly connected to a limiting plate (11), and the limiting plate (11) and the connecting seat (3) are locked together by bolts.

Images