Ventilation device for railway tunnel construction

Abstract

The utility model relates to the related technical field of ventilation devices, in particular to a ventilation device for railway tunnel construction, which comprises a support, a wind-up mechanism is arranged on one side of the support, and an arc-shaped sliding groove is formed in the support; one end of the steel cable is mounted outside the winding mechanism, and the other end of the steel cable is connected with a jet fan; the guide rotating wheel is installed in the support, and the guide rotating wheel is arranged in the direction of the sliding groove; through cooperation of the support, the winding mechanism, the guide rotating wheel and the sliding groove, climbing operation and tunnel closing are not needed when the jet fan is maintained, convenience and rapidness are achieved, meanwhile, when the top plate is aligned with the bottom plate to be inserted, alignment can be automatically completed through inclined plane guiding of the sliding block and a spring reset mechanism, the top plate is preliminarily limited through the sliding block, and the working efficiency is improved. And the first thread grooves in the top plate and the bottom plate are aligned, so that an operator can conveniently install the jet fan, and the situation that screws cannot be normally installed due to the fact that the jet fan deviates after calibration is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to ventilation device related technical field, especially a ventilation device for railway tunnel construction. BACKGROUND

[0002] In the route of railway, often pass through the tunnel, the ventilation is poor in the tunnel, thus the long tunnel mostly ventilates through the jet fan.

[0003] The existing jet fan is installed at the top of the tunnel, and when maintenance is needed, the entrance is often temporarily closed to detach the jet fan from the top of the tunnel. This needs to close the traffic, thus causing certain influence on the traffic.

[0004] In the related art, the jet fan is hoisted by a steel cable, a winding device, a hoisting support and a support with a track, and the tunnel entrance does not need to be closed when the jet fan is maintained, but when the jet fan is installed after maintenance, the operator needs to calibrate the threaded holes on the hoisting support and the jet fan support multiple times, in addition, after calibration, when the screw is screwed in, since there is no preliminary limiting structure for the jet fan, the jet fan may move, and the weight of the jet fan is large, so once the jet fan moves during operation, it needs to be calibrated again, and the already screwed screws may be damaged, which is inconvenient to operate. SUMMARY

[0005] The utility model aims at providing a ventilation device for railway tunnel construction to solve the problems in the background art.

[0006] The utility model adopts the technical scheme of:

[0007] A ventilation device for railway tunnel construction, comprising:

[0008] A support having a winding mechanism on one side, and an arc-shaped sliding groove in the interior of the support;

[0009] A steel cable having one end installed on the exterior of the winding mechanism and the other end connected to a jet fan;

[0010] A guide runner installed in the interior of the support and arranged along the direction of the sliding groove;

[0011] The steel cable and the jet fan are connected through a mounting assembly, and the mounting assembly comprises:

[0012] A seat body slidingly connected to the interior of the sliding groove, and the top end of the steel cable is fixedly connected to the seat body through the uppermost guide runner;

[0013] Rollers, rotationally connected to two sides of the seat body, facilitate the steel cable to pull the seat body;

[0014] A bottom plate, fixedly connected to the bottom of the seat body;

[0015] A top plate, fixedly connected to the top of the jet fan;

[0016] A clamping mechanism, arranged inside the bottom plate, and the bottom plate and the top plate are connected through the clamping mechanism;

[0017] A first threaded groove is arranged on the side surface of the bottom plate and the top plate;

[0018] A first screw is threadedly connected inside the first threaded groove, and the bottom plate and the top plate are tightly connected through the first screw.

[0019] Optionally, the clamping mechanism comprises:

[0020] A sliding block, slidingly connected to the inside of the bottom plate;

[0021] A guide rod, slidingly connected to two sides of the sliding block, and a spring is sleeved outside the guide rod;

[0022] A plate body, fixedly connected to one side of the sliding block, and the top of the plate body extends above the bottom plate and is slidingly connected with the bottom plate.

[0023] Optionally, one end of the sliding block extends to the outside of the bottom plate, and the protruding part is provided with an inclined surface, and the inside of the top plate is provided with a groove matched with the protruding part of the bottom plate.

[0024] Optionally, a limiting assembly is arranged between two opposite plate bodies; the limiting assembly comprises:

[0025] A clamping block, arranged between two plate bodies;

[0026] A through hole is arranged in the inside of the plate body;

[0027] A second threaded hole is arranged in the inside of the clamping block;

[0028] A second screw penetrates through the through hole and is threadedly connected to the inside of the second threaded hole, and the through hole and the second threaded hole are tightly connected through the second screw.

[0029] Optionally, two clamping mechanisms and one clamping block form a group, and a plurality of groups are arranged on the bottom plate.

[0030] Optionally, the roller is a rubber roller.

[0031] Optionally, a plurality of steel cables are fixedly connected to the seat body.

[0032] Optionally, the inside of the support and at both ends of the chute are provided with through-slots.

[0033] Compared with the prior art, the utility model has the beneficial effects that:

[0034] The utility model discloses a support, winding mechanism, guide runner and chute cooperation, when maintaining the jet fan, do not need to operate and close the tunnel, and the jet fan can be lowered to the side of the support, convenient and fast, when the top plate is inserted to the bottom plate, the inclined surface of the sliding block is guided and the spring reset mechanism can automatically complete the alignment, and the top plate is formed primary position limiting through the sliding block, and the top plate and the bottom plate are aligned with the first threaded groove, which is convenient for the operator to install the jet fan, avoids the jet fan from deviating after calibration, and leads to the normal installation of the screw. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0036] Figure 1 It is the overall structural schematic diagram in the present application;

[0037] Figure 2 It is the internal structure schematic diagram of the support in the present application;

[0038] Figure 3 It is the structural schematic diagram of the mounting assembly in the present application;

[0039] Figure 4 It is the structural schematic diagram of the jet fan after dismounting in the present application;

[0040] Figure 5 It is the structural schematic diagram of the limiting assembly in the present application.

[0041] Reference signs:

[0042] 1, support;2, winding mechanism;3, steel cable;4, guide runner;5, jet fan;

[0043] 6, mounting assembly;61, seat body;62, roller;63, bottom plate;64, top plate;65, clamping mechanism;651, sliding block;652, guide rod;653, plate body;66, first threaded groove;67, first screw;

[0044] 7. Limiting component; 71. Locking block; 72. Through hole; 73. No. 2 threaded hole; 74. No. 2 screw;

[0045] 8. Slide groove. Detailed Implementation

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] Given that current technologies use steel cables, winding devices, hoisting brackets, and rail-mounted supports to hoist jet fans, maintenance of the jet fans does not require closing the tunnel entrance. However, when installing the jet fans after maintenance, operators need to calibrate the threaded holes on the hoisting brackets and jet fan brackets multiple times, which is inconvenient.

[0049] like Figures 1-5The utility model discloses a ventilation unit for railway tunnel construction, including: support 1, its one side is provided with winding mechanism 2, and the inside of support 1 is opened arc chute 8, steel cable 3, one end is installed in the outside of winding mechanism 2, and the other end is connected with jet fan 5, guide runner 4 is installed in the inside of support 1, and guide runner 4 is along the direction of chute 8 arrangement, steel cable 3 and jet fan 5 are connected through installation component 6, and installation component 6 includes: seat body 61, sliding connection is in the inside of chute 8, and the most top of steel cable 3 passes the most top guide runner 4 and seat body 61 fixed connection, gyro wheel 62, rotationally connected in the both sides of seat body 61, and it is convenient for steel cable 3 to pull seat body 61, bottom plate 63, fixed connection is in the bottom of seat body 61, top plate 64, fixed connection is in the top of jet fan 5, clamping mechanism 65 is set up in the inside of bottom plate 63, and bottom plate 63 and top plate 64 are connected through clamping mechanism 65, one screw groove 66 is set up in the side of bottom plate 63 and top plate 64, one screw 67 is connected in the inside of one screw groove 66, and bottom plate 63 and top plate 64 are fastened connection through one screw 67.

[0050] When the tunnel is constructed, generally uses jet fan 5 to ventilate, and jet fan 5 produces negative pressure through the speed difference of inhaling and ejecting gas, to inhale air and eject to the area needing ventilation or cooling (jet fan 5 is prior art, here do not make tedious repetition).

[0051] After the installation of the bracket 1, the winding mechanism 2 and other structures is completed, the jet fan 5 is installed. First, the winding mechanism 2 is started to pay out the steel cable 3, so that the seat body 61 is lowered to a height convenient for the operator to work along the arc-shaped sliding groove 8 under the action of gravity. Then the jet fan 5 is lifted by the hydraulic lifting device (which is prior art and not shown in the figure). During the lifting process, the operator fixes the position of the bottom plate 63 by a bolt and other fastening structures, and finely adjusts the position of the top plate 64, so that the top of the top plate 64 is aligned with the bottom of the bottom plate 63 and is inserted upward. During the upward insertion of the top plate 64, the sliding block 651 is compressed into the inside of the bottom plate 63 and compresses the spring outside the guide rod 652 due to the pressure of the edge of the top plate 64. When the recess in the top plate 64 reaches the position of the sliding block 651, the sliding block 651 is pushed into the recess under the action of the spring outside the guide rod 652 to limit the position of the top plate 64, so that the preliminary limiting of the jet fan 5 can be achieved. At this time, the first threaded groove 66 on the bottom plate 63 and the top plate 64 is aligned. By screwing a first screw 67 into each first threaded groove 66, the installation of the jet fan 5 can be completed. Then the winding mechanism 2 is started to wind the steel cable 3, so that the seat body 61 is lifted along the sliding groove 8, and then the jet fan 5 is lifted together. The whole process is completed at the edge of the tunnel, and the tunnel does not need to be blocked during construction. At the same time, the auxiliary installation is carried out by the clamping mechanism 65. The operator only needs to manually align once and then screw in the first screw 67 to complete the installation, thereby saving the time and effort of the operator to repeatedly connect the threaded holes.

[0052] In some embodiments, the clamping mechanism 65 comprises a sliding block 651 slidably connected to the inside of the bottom plate 63, a guide rod 652 slidably connected to both sides of the sliding block 651, and a spring outside the guide rod 652, a plate body 653 fixedly connected to one side of the sliding block 651, and the top of the plate body 653 extending above the bottom plate 63 and slidably connected with the bottom plate 63.

[0053] In use, when the jet fan 5 needs to be overhauled, the winding mechanism 2 is first started to pay out the steel cable 3, so that the seat body 61 and the jet fan 5 are lowered together along the sliding groove 8 to a height convenient for the operator to work. Then the operator uses the hydraulic lifting device to support the jet fan 5, and successively unscrews the first screw 67. Then the operator uses a tool (because the weight of the jet fan 5 is large, the strength of the sliding block 651 and the spring outside the guide rod 652 is high, and the operator cannot pull the plate body 653 by hand, the tool includes a clamp and the like) to push the plate bodies 653 on both sides, drive the sliding block 651 to slide out of the recess in the clamping mechanism 65, thereby releasing the limiting and fixing of the top plate 64. Then the operator lowers the jet fan 5 using the hydraulic lifting device and maintains the jet fan 5, which is convenient and fast.

[0054] In some embodiments, one end of the sliding block 651 extends to the outside of the bottom plate 63, the protruding part is provided with an inclined surface, and the inside of the top plate 64 is provided with a groove matched with the protruding part of the bottom plate 63, so as to facilitate the compression of the inclined surface of the protruding part of the sliding block 651 by the edge of the top plate 64 when the jet fan 5 is lifted upward, thereby pushing the sliding block 651 to retract into the inside of the bottom plate 63, preventing the sliding block 651 from blocking the upward movement of the top plate 64.

[0055] In some embodiments, a limiting assembly 7 is arranged between the two opposite plate bodies 653; the limiting assembly 7 comprises: a clamping block 71 arranged between the two plate bodies 653; a through hole 72 arranged in the inside of the plate body 653; a second threaded hole 73 arranged in the inside of the clamping block 71; and a second screw 74 penetrating through the through hole 72 and threadedly connected to the inside of the second threaded hole 73, and the through hole 72 and the second threaded hole 73 are tightly connected through the second screw 74, so as to prevent the sliding block 651 from sliding when the top plate 64 is screwed with the first screw 67, causing the top plate 64 to fall off, the clamping block 71 is placed between the two plate bodies 653, the second screw 74 is screwed after aligning the through hole 72 and the second threaded hole 73, and the clamping block 71 and the two plate bodies 653 are tightly connected, thereby limiting the sliding of the sliding block 651 and the plate body 653, and reducing the risk of falling off of the top plate 64.

[0056] In some embodiments, the two clamping mechanisms 65 and the clamping block 71 form a group, and a plurality of groups are arranged on the bottom plate 63, so that the plurality of clamping mechanisms 65 act simultaneously to enhance the fixing effect of the top plate 64.

[0057] In some embodiments, the roller 62 is a rubber roller, which reduces the noise generated when the seat body 61 slides along the sliding groove 8.

[0058] In some embodiments, a plurality of steel cables 3 are fixedly connected to the seat body 61, which enhances the stability of the connection, and ensures that the seat body 61 can be normally suspended on the support 1 when a single steel cable 3 breaks.

[0059] In some embodiments, a through groove is formed in the inside of the support 1 and located at both ends of the sliding groove 8, so that the seat body 61 can be taken down and replaced through the through grooves on both sides of the support 1 when the seat body 61 is damaged.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement or improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A ventilation device for railway tunnel construction, characterized in that, include: A support (1) is provided with a winding mechanism (2) on one side, and a sliding groove (8) is opened inside the support (1); The steel cable (3) is installed at one end outside the winding mechanism (2) and at the other end connected to the jet fan (5); A guide wheel (4) is installed inside the bracket (1), and the guide wheel (4) is arranged along the direction of the groove (8); The steel cable (3) is connected to the jet fan (5) via an installation assembly (6), the installation assembly (6) comprising: The seat (61) is slidably connected to the inside of the groove (8), and the top of the steel cable (3) passes over the uppermost guide wheel (4) and is fixedly connected to the seat (61); Rollers (62) are rotatably connected to both sides of the seat (61) to facilitate the steel cable (3) pulling the seat (61); The base plate (63) is fixedly connected to the bottom of the seat (61); Top plate (64) is fixedly connected to the top of the jet fan (5); A snap-fit ​​mechanism (65) is disposed inside the base plate (63), and the base plate (63) and the top plate (64) are connected through the snap-fit ​​mechanism (65); A first threaded groove (66) is formed on the side of the bottom plate (63) and the top plate (64); The No. 1 screw (67) is threaded into the inside of the No. 1 threaded groove (66), and the bottom plate (63) and the top plate (64) are fastened together by the No. 1 screw (67).

2. The ventilation device for railway tunnel construction according to claim 1, characterized in that, The latching mechanism (65) includes: The slider (651) is slidably connected to the interior of the base plate (63); The guide rod (652) is slidably connected to both sides of the slider (651), and a spring is sleeved on the outside of the guide rod (652); The plate (653) is fixedly connected to one side of the slider (651), and the top of the plate (653) extends above the base plate (63) and is slidably connected to the base plate (63).

3. A ventilation device for railway tunnel construction according to claim 2, characterized in that: One end of the slider (651) extends to the outside of the base plate (63), the protruding part is provided with a slope, and the inside of the top plate (64) is provided with a groove that matches the protruding part of the base plate (63).

4. A ventilation device for railway tunnel construction according to claim 2, characterized in that: A limiting component (7) is provided between two opposing plates (653); the limiting component (7) includes: a locking block (71) disposed between the two plates (653); A through hole (72) is formed inside the plate (653); The second threaded hole (73) is opened inside the locking block (71); The second screw (74) passes through the through hole (72) and is threaded into the inside of the second threaded hole (73), and the through hole (72) and the second threaded hole (73) are fastened together by the second screw (74).

5. A ventilation device for railway tunnel construction according to claim 4, characterized in that: Two of the aforementioned latching mechanisms (65) and one of the aforementioned latching blocks (71) form a group, and multiple groups are provided on the base plate (63).

6. A ventilation device for railway tunnel construction according to claim 1, characterized in that: The roller (62) is a rubber roller.

7. A ventilation device for railway tunnel construction according to claim 1, characterized in that: Multiple steel cables (3) are fixedly connected to the base (61).

8. A ventilation device for railway tunnel construction according to claim 1, characterized in that: The bracket (1) has through slots inside and at both ends of the slide (8).

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