A kind of jet fan mounting device and jet fan system

Abstract

This invention relates to the field of tunnel engineering technology, specifically to a jet fan installation device and a jet fan system. The jet fan installation device includes: a transverse rail assembly for pre-embedding in the tunnel roof slab, the transverse rail assembly including at least one transverse track; and a longitudinal rail assembly movably connected to the transverse track, the longitudinal rail assembly being connected to the jet fan, the longitudinal rail assembly being movable along the transverse track to move the jet fan within the tunnel. This application, through the movable connection between the longitudinal rail assembly and the transverse track, allows the jet fan to move along the transverse track direction instead of being fixed to a single position on the concrete roof slab, thus solving the problems of fixed installation position, inability to adjust, and difficulties in operation, maintenance, and repair of existing fans.

Description

Technical Field

[0001] This invention relates to the field of tunnel engineering technology, specifically to a jet fan installation device and a jet fan system. Background Technology

[0002] As a key piece of equipment in tunnel ventilation systems, the stability of jet fans and the ease of maintenance directly affect the operational safety and efficiency of tunnels. In existing technologies, jet fans are usually installed using embedded parts, that is, the base or anchor rod is pre-embedded before the concrete of the tunnel structure's roof slab is poured. After the concrete has cured, the fan's hanging bracket is rigidly fixed to the pre-embedded base using bolts.

[0003] This traditional installation method relies on bolt tightening force to maintain the fan position. While it ensures a certain degree of connection rigidity and is a common practice in current engineering projects, it has certain limitations in actual construction and subsequent operation. Firstly, this rigid connection method brings significant inconvenience to later maintenance. When the fan needs repair or replacement, due to the lack of convenient disassembly structures, operators must loosen the bolts fixing the fan to the embedded base one by one in a high-altitude working environment. This process is not only time-consuming and labor-intensive, reducing maintenance efficiency, but also poses certain safety hazards in the narrow tunnel space, increasing operation and maintenance costs. Secondly, the existing installation method has poor flexibility in position adjustment. Once the embedded parts are poured, the installation position of the jet fan is fixed, and it is impossible to adjust its lateral or longitudinal position according to the actual ventilation needs or site conditions in the tunnel. If the positioning of the embedded parts deviates during construction, it is difficult to correct later, resulting in the fan installation position not meeting the optimal airflow organization requirements, affecting the overall performance of the ventilation system, and increasing construction difficulty and operating costs. Summary of the Invention

[0004] In response to the technical problems of jet fans, such as the difficulty of later maintenance and disassembly, the significant safety hazards of high-altitude operations, and the inability to flexibly adjust the installation position horizontally or vertically according to actual ventilation needs or construction deviations, the relevant technologies have been developed.

[0005] In a first aspect, embodiments of this application provide a jet fan installation device, which includes: A cross rail assembly for pre-embedding in the tunnel roof slab, the cross rail assembly comprising at least one cross rail track; A longitudinal rail assembly is movably connected to the transverse rail, the longitudinal rail assembly is used to connect to the jet fan, and the longitudinal rail assembly can move along the transverse rail to drive the jet fan to move within the tunnel.

[0006] In conjunction with the first aspect, in one embodiment, the longitudinal rail assembly includes: at least one longitudinal rail track, on which a first set of movable wheels is movably disposed, the first set of movable wheels being used to connect to the jet fan.

[0007] In conjunction with the first aspect, in one embodiment, the longitudinal rail assembly includes two longitudinal rail tracks, which are arranged side by side below the transverse rail assembly.

[0008] In conjunction with the first aspect, in one embodiment, the first set of movable wheels includes: The first pulley is movably embedded in the longitudinal rail and is used to move along the longitudinal rail. A first connecting plate is connected to the first pulley, and the first connecting plate is used to connect to the jet fan.

[0009] In conjunction with the first aspect, in one embodiment, the longitudinal rail is provided with a plurality of longitudinal rail locking holes along its length direction, and the first pulley is provided with a through hole for a first locking bolt to pass through. The first locking bolt is used to pass through the first pulley and lock with the longitudinal rail to restrict the relative movement between the first pulley and the longitudinal rail.

[0010] In conjunction with the first aspect, in one embodiment, the longitudinal rail is detachably provided with a longitudinal rail buffer pad.

[0011] In conjunction with the first aspect, in one embodiment, the transverse rail is movably provided with a second set of movable wheels, which is connected to the longitudinal rail assembly.

[0012] In conjunction with the first aspect, in one embodiment, the second set of movable wheels includes: The second pulley is movably embedded in the horizontal rail and is used to move along the horizontal rail. The second connecting plate is connected to the longitudinal rail assembly at one end, and to the second pulley at the other end.

[0013] In conjunction with the first aspect, in one embodiment, the horizontal rail is provided with a plurality of second locking holes, and the second pulley is provided with an opening for a second locking bolt to pass through. The second locking bolt is used to pass through the second pulley and lock with the horizontal rail to restrict relative movement between the second pulley and the horizontal rail.

[0014] Secondly, embodiments of this application provide a jet fan system, which includes: a jet fan installation device as described in any of the above claims.

[0015] The beneficial effects of the technical solutions provided in this application include: This application solves the problems of fixed position, inability to adjust, and difficulty in operation, maintenance and repair of the jet fan in the prior art by using the movable connection between the longitudinal rail assembly and the transverse rail. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the jet fan installation device and the jet fan in the embodiments of this application; Figure 2 This is a side view of the jet fan mounting device and the jet fan in the embodiments of this application; Figure 3 This is a front view of the jet fan mounting device and the jet fan in the embodiments of this application; Figure 4 This is a partial schematic diagram of the cross rail assembly in an embodiment of this application; Figure 5 This is a partial schematic diagram of the longitudinal rail assembly in an embodiment of this application.

[0018] In the diagram: 1. Horizontal rail assembly; 11. Horizontal rail track; 111. Second locking hole; 12. Horizontal rail buffer pad; 2. Tunnel roof slab; 3. Longitudinal rail assembly; 31. Longitudinal rail track; 311. Longitudinal rail locking hole; 312. Longitudinal rail buffer pad; 4. Jet fan; 5. First movable wheel assembly; 51. First pulley; 52. First connecting plate; 6. Second movable wheel assembly; 61. Second pulley; 62. Second connecting plate; 7. Second locking bolt; 8. First locking bolt. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0020] In response to the technical problems of jet fans, such as the difficulty of later maintenance and disassembly, the significant safety hazards of high-altitude operations, and the inability to flexibly adjust the installation position horizontally or vertically according to actual ventilation needs or construction deviations, the relevant technologies have been developed.

[0021] Firstly, such as Figure 1 and Figure 2 As shown, this application provides a jet fan installation device, which includes: a horizontal rail assembly 1 and a vertical rail assembly 3; wherein, A transverse rail assembly 1 is used to be pre-embedded on the tunnel roof slab 2. The transverse rail assembly 1 includes at least one transverse rail track 11. A longitudinal rail assembly 3 is movably connected to the transverse rail track 11. The longitudinal rail assembly 3 is used to be connected to the jet fan 4. The longitudinal rail assembly 3 can move along the transverse rail track 11 to drive the jet fan 4 to move in the tunnel.

[0022] Optionally, the transverse rail assembly 1 includes two transverse rails 11. During construction, two transverse rails 11 are pre-embedded simultaneously. The transverse rails 11 are arranged transversely along the tunnel. The length of the transverse rails 11 and the spacing between the two transverse rails are set according to actual needs. The transverse rails 11 must be able to withstand the load requirements of the jet fan.

[0023] Understandably, in the above embodiment, the movable connection between the longitudinal rail assembly 3 and the transverse rail 11 allows the jet fan to move along the transverse rail direction instead of being fixed to a single position on the concrete roof slab. This solves the problem of the fan's fixed position and inability to be adjusted after installation in the prior art. Furthermore, the pre-embedded transverse rail assembly provides stable foundation support, and the movable connection allows the fan's position to be flexibly adjusted to match the optimal ventilation conditions during the initial installation phase. Additionally, the fan's position can be moved for easy disassembly during later maintenance, reducing construction and maintenance difficulty. Moreover, it can adapt to fan layout adjustments under different tunnel cross-sections or different ventilation requirements, thus improving the applicability of the device.

[0024] Specifically, the longitudinal rail assembly 3 includes at least one longitudinal rail track 31, on which a first movable wheel set 5 is movably disposed, the first movable wheel set 5 being used to connect to the jet fan 4.

[0025] It is worth noting that the first movable wheel set 5 on the longitudinal rail 31 allows the jet fan to move longitudinally along the longitudinal rail direction. The longitudinal rail provides a direct suspension and sliding foundation for the fan, and together with the movable wheel set, ensures the stability of the fan during longitudinal movement.

[0026] In some alternative embodiments, the longitudinal rail assembly 3 includes two longitudinal rail tracks 31, which are arranged side by side below the transverse rail assembly 1.

[0027] It should be noted that the number of longitudinal rails 31 needs to be determined based on the number of jet fans 4 to be installed.

[0028] Understandably, using multiple parallel longitudinal rails, compared to a single rail, can more evenly distribute the weight of the jet fan, preventing the fan from tilting or swaying during movement or operation. The dual-rail structure enhances the overall rigidity of the longitudinal rail assembly, reduces the risk of rail deformation caused by fan vibration, and extends the service life of the device.

[0029] In some specific implementation methods, such as Figure 3 and Figure 5 As shown, the first movable wheel assembly 5 includes: a first pulley 51 and a first connecting plate 52; wherein, The first pulley 51 is movably embedded in the longitudinal rail 31 and is used to move along the longitudinal rail 31; the first connecting plate 52 is connected to the first pulley 51 and is used to connect to the jet fan 4.

[0030] Understandably, the first pulley 51, embedded within the track, rolls and slides, significantly reducing the resistance during the longitudinal movement of the fan compared to sliding friction, allowing a single person or a small amount of manpower to push the fan for position adjustment. The first connecting plate 52, as an intermediate transition piece, effectively separates and reliably connects the rolling structure of the wheel assembly with the fan's installation structure, facilitating standardized production and matching of the installation interface.

[0031] In some alternative embodiments, the longitudinal rail 31 is provided with a plurality of longitudinal rail locking holes 311 along its length direction, and the first pulley 51 is provided with a through hole for the first locking bolt 8 to pass through. The first locking bolt 8 is used to pass through the first pulley 51 and lock with the longitudinal rail 31 to limit the relative movement between the first pulley 51 and the longitudinal rail 31.

[0032] Specifically, after the first locking bolt 8 is inserted into the longitudinal rail 31, the first locking bolt 8 is tightened with a nut.

[0033] It is worth noting that multiple longitudinal rail locking holes 311 are provided along the length direction, allowing for various options in the longitudinal fixing position of the fan. The optimal operating point can be selected based on actual ventilation effect test results, improving the flexibility of commissioning. Through the cooperation of bolts and locking holes, the fan can be firmly locked in a specific position on the longitudinal rail, preventing accidental displacement due to high-speed airflow impact or its own vibration within the tunnel, thus ensuring operational safety.

[0034] In some alternative embodiments, the longitudinal rail 31 is detachably provided with longitudinal rail buffer pads 312.

[0035] It is worth noting that the longitudinal rail buffer pad 312 can absorb the vibration energy generated during the operation of the jet fan, reducing the transmission of vibration to the tunnel roof structure and lowering structural noise. The pad can reduce hard impacts and wear between the metal rail and the wheel assembly, extending the service life of the rail and wheel assembly.

[0036] Furthermore, the transverse rail 11 is movably provided with a second movable wheel set 6, which is connected to the longitudinal rail assembly 3.

[0037] Specifically, such as Figure 4 As shown, the second movable wheel assembly 6 includes: a second pulley 61 and a second connecting plate 62; wherein, The second pulley 61 is movably embedded in the horizontal rail 11 and is used to move along the horizontal rail 11; the second connecting plate 62 is connected at one end to the longitudinal rail assembly 3 and at the other end to the second pulley 61.

[0038] It is worth noting that the second pulley 61 rolls within the pre-embedded horizontal rail, making it easier to adjust the heavy longitudinal rail assembly and fan during lateral positioning. The second connecting plate 62 effectively connects the rolling function of the pulley with the supporting function of the longitudinal rail assembly, ensuring structural stability during lateral movement and preventing the longitudinal rail assembly from derailing.

[0039] Preferably, a cross rail buffer pad 12 is detachably attached inside the cross rail 11. The cross rail 11 is provided with a plurality of second locking holes 111, and the second pulley 61 is provided with an opening for the second locking bolt 7 to pass through. The second locking bolt 7 is used to pass through the second pulley 61 and lock with the cross rail 11 to limit the relative movement between the second pulley 61 and the cross rail 11.

[0040] Understandably, the second pulley 61 is fixed to the transverse rail 11 by the second locking bolt 7 to prevent the longitudinal rail assembly from accidentally sliding along the transverse rail direction under the vibration of the fan or the impact of airflow, thus ensuring the lateral position of the fan is fixed. Multiple locking holes are provided on the transverse rail 11, allowing the lateral installation position of the longitudinal rail assembly to be flexibly adjusted according to the tunnel cross-section width or the fan spacing, optimizing the ventilation network layout.

[0041] Preferably, both the first pulley 51 and the second pulley 61 are made of flame-retardant rubber.

[0042] It is understandable that the number of rubber wheel sets in the first movable wheel set 5 and the second movable wheel set 6 can be determined according to the length of the fan.

[0043] The jet fan installation method of the jet fan installation device of this application includes: Preliminary installation stage: Place the first movable wheel assembly 5, connected to the jet fan 4, into the longitudinal rail 31. After both the front and rear first pulleys 51 are in place in the longitudinal rail 31, push the jet fan 4 to slide to the desired position. Further, after confirming the position of the jet fan 4, simply align the round hole of the first pulley 51 with the locking hole 311 of the longitudinal rail, then place the longitudinal rail buffer pad 312, insert the first locking bolt 8, place the longitudinal rail buffer pad 312 on the other side, and tighten the horizontal and vertical rail nuts to achieve quick and secure installation of the jet fan 4.

[0044] Lateral position adjustment during operation: If it is necessary to adjust the lateral position of the jet fan 4 or the spacing between multiple jet fans during operation, simply remove the second locking bolt 7, the horizontal rail nut and the horizontal rail buffer pad 12 that fix the second pulley 61, and then push the jet fan 4 or the longitudinal rail assembly 3. After the first pulley 51 slides to the predetermined position, fix the longitudinal rail assembly 3 according to the previous steps to achieve the lateral adjustment of the jet fan.

[0045] During operation, the jet fan is adjusted back and forth. Simply remove the first locking bolt 8, the horizontal rail nut and the horizontal rail buffer pad 12, then push the jet fan 4. After the first movable wheel group 5 slides to the predetermined position, fix the jet fan according to the previous steps to achieve the adjustment of the jet fan back and forth.

[0046] Maintenance and disassembly stage: If the jet fan needs to be removed for inspection and maintenance during the maintenance period, simply remove the second locking bolt 7, the horizontal rail nut and the horizontal rail buffer pad 12, and then push the jet fan 4 until the second pulley 61 leaves the horizontal rail track 11 to complete the quick disassembly of the jet fan 4.

[0047] Furthermore, the jet fan can also be disassembled by removing the first movable wheel assembly 5 so that the first pulley 51 leaves the longitudinal rail 31.

[0048] Secondly, this application provides a jet fan system, comprising: a jet fan mounting device, which includes: a horizontal rail assembly 1 and a vertical rail assembly 3; wherein... A transverse rail assembly 1 is used to be pre-embedded on the tunnel roof slab 2. The transverse rail assembly 1 includes at least one transverse rail track 11. A longitudinal rail assembly 3 is movably connected to the transverse rail track 11. The longitudinal rail assembly 3 is used to be connected to the jet fan 4. The longitudinal rail assembly 3 can move along the transverse rail track 11 to drive the jet fan 4 to move in the tunnel.

[0049] Optionally, the transverse rail assembly 1 includes two transverse rails 11. During construction, two transverse rails 11 are pre-embedded simultaneously. The transverse rails 11 are arranged transversely along the tunnel. The length of the transverse rails 11 and the spacing between the two transverse rails are set according to actual needs. The transverse rails 11 must be able to withstand the load requirements of the jet fan.

[0050] Understandably, in the above embodiment, the movable connection between the longitudinal rail assembly 3 and the transverse rail 11 allows the jet fan to move along the transverse rail direction instead of being fixed to a single position on the concrete roof slab. This solves the problem of the fan's fixed position and inability to be adjusted after installation in the prior art. Furthermore, the pre-embedded transverse rail assembly provides stable foundation support, and the movable connection allows the fan's position to be flexibly adjusted to match the optimal ventilation conditions during the initial installation phase. Additionally, the fan's position can be moved for easy disassembly during later maintenance, reducing construction and maintenance difficulty. Moreover, it can adapt to fan layout adjustments under different tunnel cross-sections or different ventilation requirements, thus improving the applicability of the device.

[0051] Specifically, the longitudinal rail assembly 3 includes at least one longitudinal rail track 31, on which a first movable wheel set 5 is movably disposed, the first movable wheel set 5 being used to connect to the jet fan 4.

[0052] It is worth noting that the first movable wheel set 5 on the longitudinal rail 31 allows the jet fan to move longitudinally along the longitudinal rail direction. The longitudinal rail provides a direct suspension and sliding foundation for the fan, and together with the movable wheel set, ensures the stability of the fan during longitudinal movement.

[0053] In some alternative embodiments, the longitudinal rail assembly 3 includes two longitudinal rail tracks 31, which are arranged side by side below the transverse rail assembly 1.

[0054] It should be noted that the number of longitudinal rails 31 needs to be determined based on the number of jet fans 4 to be installed.

[0055] Understandably, using multiple parallel longitudinal rails, compared to a single rail, can more evenly distribute the weight of the jet fan, preventing the fan from tilting or swaying during movement or operation. The dual-rail structure enhances the overall rigidity of the longitudinal rail assembly, reduces the risk of rail deformation caused by fan vibration, and extends the service life of the device.

[0056] In some specific implementation methods, such as Figure 3 and Figure 5 As shown, the first movable wheel assembly 5 includes: a first pulley 51 and a first connecting plate 52; wherein, The first pulley 51 is movably embedded in the longitudinal rail 31 and is used to move along the longitudinal rail 31; the first connecting plate 52 is connected to the first pulley 51 and is used to connect to the jet fan 4.

[0057] Understandably, the first pulley 51, embedded within the track, rolls and slides, significantly reducing the resistance during the longitudinal movement of the fan compared to sliding friction, allowing a single person or a small amount of manpower to push the fan for position adjustment. The first connecting plate 52, as an intermediate transition piece, effectively separates and reliably connects the rolling structure of the wheel assembly with the fan's installation structure, facilitating standardized production and matching of the installation interface.

[0058] In some alternative embodiments, the longitudinal rail 31 is provided with a plurality of longitudinal rail locking holes 311 along its length direction, and the first pulley 51 is provided with a through hole for the first locking bolt 8 to pass through. The first locking bolt 8 is used to pass through the first pulley 51 and lock with the longitudinal rail 31 to limit the relative movement between the first pulley 51 and the longitudinal rail 31.

[0059] Specifically, after the first locking bolt 8 is inserted into the longitudinal rail 31, the first locking bolt 8 is tightened with a nut.

[0060] It is worth noting that multiple longitudinal rail locking holes 311 are provided along the length direction, allowing for various options in the longitudinal fixing position of the fan. The optimal operating point can be selected based on actual ventilation effect test results, improving the flexibility of commissioning. Through the cooperation of bolts and locking holes, the fan can be firmly locked in a specific position on the longitudinal rail, preventing accidental displacement due to high-speed airflow impact or its own vibration within the tunnel, thus ensuring operational safety.

[0061] In some alternative embodiments, the longitudinal rail 31 is detachably provided with longitudinal rail buffer pads 312.

[0062] It is worth noting that the longitudinal rail buffer pad 312 can absorb the vibration energy generated during the operation of the jet fan, reducing the transmission of vibration to the tunnel roof structure and lowering structural noise. The pad can reduce hard impacts and wear between the metal rail and the wheel assembly, extending the service life of the rail and wheel assembly.

[0063] Furthermore, the transverse rail 11 is movably provided with a second movable wheel set 6, which is connected to the longitudinal rail assembly 3.

[0064] Specifically, such as Figure 4 As shown, the second movable wheel assembly 6 includes: a second pulley 61 and a second connecting plate 62; wherein, The second pulley 61 is movably embedded in the horizontal rail 11 and is used to move along the horizontal rail 11; the second connecting plate 62 is connected at one end to the longitudinal rail assembly 3 and at the other end to the second pulley 61.

[0065] It is worth noting that the second pulley 61 rolls within the pre-embedded horizontal rail, making it easier to adjust the heavy longitudinal rail assembly and fan during lateral positioning. The second connecting plate 62 effectively connects the rolling function of the pulley with the supporting function of the longitudinal rail assembly, ensuring structural stability during lateral movement and preventing the longitudinal rail assembly from derailing.

[0066] Preferably, the horizontal rail 11 is provided with a plurality of second locking holes 111, and the second pulley 61 is provided with an opening for the second locking bolt 7 to pass through. The second locking bolt 7 is used to pass through the second pulley 61 and lock with the horizontal rail 11 to limit the relative movement between the second pulley 61 and the horizontal rail 11.

[0067] Understandably, the second pulley 61 is fixed to the transverse rail 11 by the second locking bolt 7 to prevent the longitudinal rail assembly from accidentally sliding along the transverse rail direction under the vibration of the fan or the impact of airflow, thus ensuring the lateral position of the fan is fixed. Multiple locking holes are provided on the transverse rail 11, allowing the lateral installation position of the longitudinal rail assembly to be flexibly adjusted according to the tunnel cross-section width or the fan spacing, optimizing the ventilation network layout.

[0068] Preferably, both the first pulley 51 and the second pulley 61 are made of flame-retardant rubber.

[0069] It is understandable that the number of rubber wheel sets in the first movable wheel set 5 and the second movable wheel set 6 can be determined according to the length of the fan.

[0070] The jet fan installation method of the jet fan installation device of this application includes: Preliminary installation stage: Place the first movable wheel assembly 5, connected to the jet fan 4, into the longitudinal rail 31. After both the front and rear first pulleys 51 are in place in the longitudinal rail 31, push the jet fan 4 to slide to the desired position. Further, after confirming the position of the jet fan 4, simply align the round hole of the first pulley 51 with the locking hole 311 of the longitudinal rail, then place the longitudinal rail buffer pad 312, insert the first locking bolt 8, place the longitudinal rail buffer pad 312 on the other side, and tighten the horizontal and vertical rail nuts to achieve quick and secure installation of the jet fan 4.

[0071] Lateral position adjustment during operation: If it is necessary to adjust the lateral position of the jet fan 4 or the spacing between multiple jet fans during operation, simply remove the second locking bolt 7, the horizontal rail nut and the horizontal rail buffer pad 12 that fix the second pulley 61, and then push the jet fan 4 or the longitudinal rail assembly 3. After the first pulley 51 slides to the predetermined position, fix the longitudinal rail assembly 3 according to the previous steps to achieve the lateral adjustment of the jet fan.

[0072] During operation, the jet fan is adjusted back and forth. Simply remove the first locking bolt 8, the horizontal rail nut and the horizontal rail buffer pad 12, then push the jet fan 4. After the first movable wheel group 5 slides to the predetermined position, fix the jet fan according to the previous steps to achieve the adjustment of the jet fan back and forth.

[0073] Maintenance and disassembly stage: If the jet fan needs to be removed for inspection and maintenance during the maintenance period, simply remove the second locking bolt 7, the horizontal rail nut and the horizontal rail buffer pad 12, and then push the jet fan 4 until the second pulley 61 leaves the horizontal rail track 11 to complete the quick disassembly of the jet fan 4.

[0074] Furthermore, the jet fan can also be disassembled by removing the first movable wheel assembly 5 so that the first pulley 51 leaves the longitudinal rail 31.

[0075] In summary, this invention utilizes a double-layer track structure comprised of pre-embedded horizontal rail components and movable longitudinal rail components, along with movable wheel sets and a locking mechanism. This allows for flexible adjustment of the jet fan's position in both the lateral and longitudinal directions within the tunnel. It can correct for construction deviations and optimize the fan layout to improve ventilation performance based on actual ventilation needs. Furthermore, this structure replaces traditional rigid connections with a pulley-based sliding and bolt-locking method, enabling quick disassembly of the fan during maintenance by unlocking and sliding it to the end. This significantly reduces the difficulty and safety risks of high-altitude operations, improves maintenance efficiency, and the removable buffer pads effectively absorb operational vibrations, protecting the track components and extending their service life.

[0076] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0077] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0078] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A jet fan installation device, characterized in that, include: A cross rail assembly (1) is used to be embedded in the tunnel roof slab (2), the cross rail assembly (1) comprising at least one cross rail track (11). The longitudinal rail assembly (3) is movably connected to the transverse rail (11). The longitudinal rail assembly (3) is used to connect to the jet fan (4). The longitudinal rail assembly (3) can move along the transverse rail (11) to drive the jet fan (4) to move in the tunnel.

2. The jet fan installation device as described in claim 1, characterized in that: The longitudinal rail assembly (3) includes at least one longitudinal rail track (31), on which a first movable wheel set (5) is movably disposed, the first movable wheel set (5) being used to connect to the jet fan (4).

3. The jet fan installation device as described in claim 2, characterized in that: The longitudinal rail assembly (3) includes two longitudinal rail tracks (31), which are arranged side by side below the transverse rail assembly (1).

4. The jet fan installation device as described in claim 2, characterized in that, The first active wheel set (5) includes: The first pulley (51) is movably embedded in the longitudinal rail (31) and is used to move along the longitudinal rail (31). The first connecting plate (52) is connected to the first pulley (51) and is used to connect to the jet fan (4).

5. The jet fan installation device as described in claim 4, characterized in that: The longitudinal rail (31) has a plurality of longitudinal rail locking holes (311) along its length direction. The first pulley (51) has a through hole for the first locking bolt (8) to pass through. The first locking bolt (8) is used to pass through the first pulley (51) and lock with the longitudinal rail (31) to limit the relative movement between the first pulley (51) and the longitudinal rail (31).

6. The jet fan installation device as described in claim 2, characterized in that: The longitudinal rail (31) is detachably equipped with a longitudinal rail buffer pad (312).

7. The jet fan installation device as described in claim 1, characterized in that: The transverse rail (11) is movably provided with a second movable wheel set (6), which is connected to the longitudinal rail assembly (3).

8. The jet fan installation device as described in claim 7, characterized in that, The second active wheel set (6) includes: The second pulley (61) is movably embedded in the horizontal rail (11) and is used to move along the horizontal rail (11); The second connecting plate (62) has one end connected to the longitudinal rail assembly (3) and the other end connected to the second pulley (61).

9. The jet fan installation device as described in claim 8, characterized in that: The horizontal rail (11) is provided with a plurality of second locking holes (111), and the second pulley (61) is provided with an opening for the second locking bolt (7) to pass through. The second locking bolt (7) is used to pass through the second pulley (61) and lock with the horizontal rail (11) to limit the relative movement between the second pulley (61) and the horizontal rail (11).

10. A jet fan system, characterized in that, include: The jet fan installation device as described in any one of claims 1-9.

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