Ventilation device for rail transit construction

Abstract

The utility model discloses a ventilation device for rail transit construction, which comprises an integrated frame and mounting racks, two groups of mounting racks are mounted at the top end of the integrated frame, a two-way screw rod is movably mounted in the integrated frame, two groups of threaded sleeves are sleeved on the surface of the two-way screw rod, and the threaded sleeves are in threaded connection with the two-way screw rod. Threaded sleeves are installed at the bottom end of the integrated frame and slidably connected with the integrated frame, a servo motor is installed on the side wall of the integrated frame, the output end of the servo motor is connected with the two-way lead screw, bearing sleeves are installed at the bottom ends of the threaded sleeves correspondingly, moving rods are slidably installed in the bearing sleeves correspondingly, and locking pins are installed on the side walls of the bearing sleeves correspondingly. And the locking pin penetrates through the bearing sleeve and extends into the moving rod. According to the utility model, convenient convection ventilation is realized, the air blowing position and the air blowing angle can be flexibly adjusted conveniently, and the ventilation effect and the use flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation devices, in particular to a ventilation device for rail transit construction. Background Art

[0002] Tunnel construction refers to the general term for the construction methods, construction techniques, and construction management of tunnels and underground caverns. Tunnels require ventilation during construction to increase the air flow rate in the tunnel to prevent suffocation of people inside the tunnel. Traditional ventilation devices are mostly fixed and not easy to adjust or ventilate different locations. Their ventilation effect needs to be improved. In order to improve this situation, a ventilation device for rail transit construction is proposed.

[0003] For example, a ventilation device for rail transit construction disclosed in the authorization announcement number CN217950723U includes a base, an upper end of the base is provided with a ventilation box through an adjustment mechanism, and a plurality of universal wheels are fixed to the lower end of the base; the adjustment mechanism includes a rotating disk, the rotating disk is arranged in a rotating groove provided on the base, a fixing block is fixed to the upper end of the rotating disk, and the lower end of the rotating disk is connected to a first bevel gear through a rotating assembly, the first bevel gear is connected to an adjustment rod via a rotating rod with second bevel gears fixed at both ends, and the rotating rod is rotatably installed in a rotating hole provided inside the base;

[0004] Although it has realized that the construction workers can adjust the angle of the ventilation box by setting the adjustment mechanism, it avoids the blower blowing in only one direction and cannot be adjusted according to the on-site construction environment, thereby improving the flexibility of the overall device;

[0005] However, the problem that the existing ventilation device is not conducive to convenient convection ventilation during use and is not conducive to flexible adjustment of the blowing position and blowing angle is not solved, which affects the ventilation effect and flexibility of use. Utility Model Content

[0006] The purpose of the present utility model is to provide a ventilation device for rail transit construction, so as to solve the problem in the above-mentioned background technology that the ventilation device is not convenient for convenient convection ventilation, is not conducive to flexible adjustment of the blowing position and blowing angle, and affects the ventilation effect and flexibility of use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ventilation device for rail transit construction, comprising an integrated frame and a mounting frame, two groups of mounting frames are installed on the top of the integrated frame, a bidirectional screw rod is movably installed inside the integrated frame, the surface of the bidirectional screw rod is covered with two groups of threaded sleeves, and the threaded sleeves are threadedly connected to the bidirectional screw rod, and the threaded sleeves are slidably connected to the integrated frame, a servo motor is installed on the side wall of the integrated frame, and the output end of the servo motor is connected to the bidirectional screw rod, the bottom end of each threaded sleeve is installed with a bearing sleeve, a moving rod is slidably installed inside the bearing sleeve, a locking pin is installed on the side wall of the bearing sleeve, and the locking pin passes through the bearing sleeve and extends to the inside of the moving rod, a support frame is installed at the bottom end of each moving rod, a bearing plate is provided inside the support frame, and an adjustment shaft is symmetrically installed on the side wall of the bearing plate, and the adjustment shaft is movably connected to the support frame, an adjustment motor is installed on the outer wall of the support frame, and the output end of the adjustment motor is connected to a group of adjustment shafts.

[0008] Preferably, a fan is installed on one side of the support frame, and an air outlet is installed on the other side of the support frame.

[0009] Preferably, a second electric push rod is installed on the side wall of the support frame above the fan, and a second push arm is installed on the output end of the second electric push rod.

[0010] Preferably, first electric push rods are installed on the side walls of the support frame on both sides of the second electric push rod, and the first electric push rods are movably connected to the support frame.

[0011] Preferably, the output ends of the first electric push rods are all equipped with first push arms, and the air outlets are all provided with return hoods above them.

[0012] Preferably, a first pin is installed at one end of the first push arm close to the return cover, and the first push arm is movably connected to the return cover through the first pin.

[0013] Preferably, the bottom ends of the return covers are symmetrically provided with rotating shafts, and the return covers are movably connected to the air outlet via the rotating shafts.

[0014] Preferably, the air outlet is provided with a swing port at a port position away from the support frame, the bottom end of the swing port is installed with a lower bearing shaft, and the swing port is movably connected to the air outlet through the lower bearing shaft.

[0015] Preferably, a connecting arm is installed at one end of the second push arm away from the second electric push rod, a second pin is installed at one end of the connecting arm close to the second push arm, and the connecting arm is movably connected to the second push arm through the second pin.

[0016] Preferably, an upper bearing shaft is fixedly mounted on one end of the connecting arm close to the swing opening, and the upper bearing shaft is connected to the swing opening.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the ventilation device not only realizes convenient convection ventilation and facilitates flexible adjustment of the blowing position and blowing angle, but also improves the ventilation effect and flexibility of use;

[0018] (1) The whole device is installed on the upper part of the tunnel through the mounting frame, and the fan is used to supply air to the inside of the tunnel. The first push arm is driven to move by the first electric push rod, and the first push arm drives the return flow cover to rotate with the rotation axis as the axis through the first pin shaft, so that the return flow cover is covered on the surface of the swing port, and the wind direction of the set of fans is changed to blow from the inside to the outside. With the cooperation of the two sets of fans, air convection inside the tunnel is achieved, thereby improving the ventilation effect. When the distance between the two sets of fans needs to be adjusted, the servo motor drives the bidirectional screw to rotate, and the bidirectional screw drives the two sets of threaded sleeves to move closer to each other, so that the threaded sleeve drives The bearing sleeve, movable rod, support frame, bearing plate and fan are close to each other, so as to flexibly adjust the distance between the fans. When the blowing angle needs to be adjusted, the adjustment motor drives a set of adjustment shafts to rotate, and another set of adjustment shafts provides movable support for the bearing plate. The adjustment motor drives the bearing plate and the fan to rotate, so as to adjust the blowing angle of the fan. When the blowing height needs to be adjusted, the movable rod is pulled downward, and the movable rod moves inside the bearing sleeve. Then, the locking pin is inserted to fix the bearing sleeve and the movable rod in connection. Then, the blowing height of the fan can be adjusted, so as to flexibly ventilate the interior of the tunnel.

[0019] (2) The second push arm is driven to move by the second electric push rod, and the second push arm is driven to rotate the connecting arm through the second pin shaft, and the connecting arm is driven to rotate the swing port through the upper bearing shaft around the lower bearing shaft, thereby adjusting the direction of the blowing air to ventilate the interior of the tunnel more flexibly. The above is the complete use of the ventilation device for rail transit construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the support frame of the present invention;

[0022] Figure 3 This is a schematic diagram of the front cross-sectional structure of the integrated frame of the present utility model;

[0023] Figure 4 This is a schematic diagram of the front cross-sectional structure of the support frame of the present invention;

[0024] Figure 5This is a three-dimensional perspective structural diagram of the return hood of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional perspective structure of the swing mouth of the utility model.

[0026] In the figure: 1. Integrated frame; 2. Load-bearing sleeve; 3. Support frame; 4. Fan; 5. Load-bearing plate; 6. Air outlet; 7. Swing outlet; 8. Return cover; 9. Bidirectional screw; 10. Threaded sleeve; 11. Servo motor; 12. Locking pin; 13. Moving rod; 14. Adjustment motor; 15. Adjustment shaft; 16. First electric push rod; 17. First push arm; 18. Rotating shaft; 19. First pin shaft; 20. Lower load-bearing shaft; 21. Second electric push rod; 22. Second push arm; 23. Second pin shaft; 24. Connecting arm; 25. Upper load-bearing shaft; 26. Mounting frame. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0028] See also Figure 1-6 The utility model provides an embodiment: a ventilation device for rail transit construction, including an integrated frame 1 and a mounting frame 26, two sets of mounting frames 26 are installed on the top of the integrated frame 1, a bidirectional screw rod 9 is movably installed inside the integrated frame 1, and two sets of threaded sleeves 10 are sleeved on the surface of the bidirectional screw rod 9, and the threaded sleeve 10 is threadedly connected to the bidirectional screw rod 9, and the threaded sleeve 10 is slidably connected to the integrated frame 1, a servo motor 11 is installed on the side wall of the integrated frame 1, the servo motor 11 plays a role of power drive, and the output end of the servo motor 11 is connected to the bidirectional screw rod 9, and the bottom end of the threaded sleeve 10 is screwed. A bearing sleeve 2 is installed, and a moving rod 13 is slidably installed inside the bearing sleeve 2. A locking pin 12 is installed on the side wall of the bearing sleeve 2, and the locking pin 12 passes through the bearing sleeve 2 and extends to the inside of the moving rod 13. A support frame 3 is installed at the bottom end of the moving rod 13, and a bearing plate 5 is provided inside the support frame 3. Adjustment shafts 15 are symmetrically installed on the side walls of the bearing plate 5, and the adjustment shafts 15 are movably connected to the support frame 3. Adjustment motors 14 are installed on the outer walls of the support frame 3. The adjustment motors 14 play a role of power drive, and the output end of the adjustment motor 14 is connected to a group of adjustment shafts 15;

[0029] The whole device is installed on the upper part of the tunnel through the mounting frame 26, and the fan 4 is turned on to supply air to the inside of the tunnel. Then, a group of first electric push rods 16 are turned on, and the first electric push rods 16 drive the first push arm 17 to move, and the first push arm 17 drives the return flow cover 8 to rotate with the rotating shaft 18 as the axis through the first pin shaft 19, so that the return flow cover 8 covers the surface of the swing port 7, and the wind direction of the group of fans 4 is changed to blow from the inside to the outside. With the cooperation of the two groups of fans 4, air convection inside the tunnel is achieved, thereby improving the ventilation effect. When the distance between the two groups of fans 4 needs to be adjusted, the servo motor 11 is turned on, and the servo motor 11 drives the bidirectional screw rod 9 to rotate, and the bidirectional screw rod 9 drives the two groups of threaded sleeves 10 to approach each other, so that the screw The pattern sleeve 10 drives the bearing sleeve 2, the moving rod 13, the support frame 3, the bearing plate 5 and the fan 4 to move closer to each other, so as to flexibly adjust the distance between the fans 4. When the blowing angle needs to be adjusted, the adjustment motor 14 is turned on, and the adjustment motor 14 drives a set of adjustment shafts 15 to rotate, and another set of adjustment shafts 15 is used to provide movable support for the bearing plate 5. The adjustment motor 14 drives the bearing plate 5 and the fan 4 to rotate, so as to adjust the blowing angle of the fan 4. When the blowing height needs to be adjusted, the moving rod 13 is pulled downward, and the moving rod 13 moves inside the bearing sleeve 2. Then, the locking pin 12 is inserted to fix the bearing sleeve 2 and the moving rod 13 to be fixedly connected. The blowing height of the fan 4 can be adjusted, so as to flexibly ventilate the interior of the tunnel.

[0030] A fan 4 is installed on one side of the support frame 3, and an air outlet 6 is installed on the other side of the support frame 3;

[0031] A second electric push rod 21 is installed on the side wall of the support frame 3 above the fan 4. The second electric push rod 21 plays the role of power drive. The output end of the second electric push rod 21 is installed with a second push arm 22. The first electric push rod 16 is installed on the side wall of the support frame 3 on both sides of the second electric push rod 21. The first electric push rod 16 plays the role of power drive;

[0032] The output ends of the first electric push rods 16 are all equipped with first push arms 17, and a return cover 8 is provided above the air outlet 6. The ends of the first push arms 17 close to the return cover 8 are all equipped with first pins 19, and the first push arms 17 are movably connected to the return cover 8 via the first pins 19.

[0033] The bottom ends of the return hoods 8 are symmetrically mounted with rotating shafts 18, and the return hoods 8 are movably connected to the air outlet 6 via the rotating shafts 18. The air outlet 6 is provided with a swing port 7 at the end away from the support frame 3. The bottom ends of the swing ports 7 are mounted with lower bearing shafts 20, and the swing ports 7 are movably connected to the air outlet 6 via the lower bearing shafts 20.

[0034] A connecting arm 24 is installed at one end of the second push arm 22 away from the second electric push rod 21, and a second pin 23 is installed at one end of the connecting arm 24 close to the second push arm 22. The connecting arm 24 is movably connected to the second push arm 22 through the second pin 23. An upper bearing shaft 25 is fixedly installed at one end of the connecting arm 24 close to the swing opening 7, and the upper bearing shaft 25 is connected to the swing opening 7.

[0035] Open the second electric push rod 21, and the second electric push rod 21 drives the second push arm 22 to move, and the second push arm 22 drives the connecting arm 24 to rotate through the second pin shaft 23, and the connecting arm 24 drives the swing port 7 to rotate around the lower bearing shaft 20 through the upper bearing shaft 25, so as to adjust the direction of blowing and ventilate the inside of the tunnel more flexibly. The above is the complete use of the ventilation device for rail transit construction.

[0036] Working principle: The whole device is installed on the upper part of the tunnel through the mounting frame 26, and the fan 4 is used to supply air to the inside of the tunnel. The first push arm 17 is driven to move by the first electric push rod 16, and the first push arm 17 drives the return flow cover 8 to rotate around the rotating shaft 18 through the first pin shaft 19, so that the return flow cover 8 covers the surface of the swing opening 7, and the wind direction of the group of fans 4 is changed to blow from the inside to the outside. With the cooperation of the two groups of fans 4, air convection inside the tunnel is achieved, thereby improving the ventilation effect. When it is necessary to adjust the distance between the two groups of fans 4, the servo motor 11 drives the bidirectional screw rod 9 to rotate, and the bidirectional screw rod 9 drives the two groups of threaded sleeves 10 to approach each other, so that the threaded sleeve 10 drives the bearing sleeve 2, the moving rod 13, the support frame 3, the bearing plate 5 and the fan 4 to approach each other, so as to flexibly adjust the distance between the fans 4. When it is necessary to adjust the blowing angle, the adjustment motor 14 Drive a group of adjustment shafts 15 to rotate, and another group of adjustment shafts 15 is used to provide movable support for the bearing plate 5. The adjusting motor 14 drives the bearing plate 5 and the fan 4 to rotate, thereby adjusting the blowing angle of the fan 4. When the blowing height needs to be adjusted, the moving rod 13 is pulled downward, and the moving rod 13 moves inside the bearing sleeve 2. Then the locking pin 12 is inserted to fix the bearing sleeve 2 and the moving rod 13 to be fixedly connected. The blowing height of the fan 4 can be adjusted, thereby flexibly ventilating the interior of the tunnel. The second electric push rod 21 drives the second push arm 22 to move, and the second push arm 22 drives the connecting arm 24 to rotate through the second pin shaft 23. The connecting arm 24 drives the swing port 7 to rotate with the lower bearing shaft 20 as the axis through the upper bearing shaft 25, thereby adjusting the blowing direction, thereby more flexibly ventilating the interior of the tunnel. The above is all the usage content of the ventilation device for rail transit construction.

[0037] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A ventilation device for rail transit construction, comprising an integrated frame and a mounting frame, characterized in that: Two groups of mounting frames are installed on the top of the integrated frame, and a bidirectional screw rod is movably installed inside the integrated frame. Two groups of threaded sleeves are installed on the surface of the bidirectional screw rod, and the threaded sleeves are threadedly connected to the bidirectional screw rod, and the threaded sleeves are slidably connected to the integrated frame. A servo motor is installed on the side wall of the integrated frame, and the output end of the servo motor is connected to the bidirectional screw rod. A bearing sleeve is installed at the bottom end of the threaded sleeve, and a moving rod is slidably installed inside the bearing sleeve. A locking pin is installed on the side wall of the bearing sleeve, and the locking pin passes through the bearing sleeve and extends to the inside of the moving rod. A support frame is installed at the bottom end of the moving rod, and a bearing plate is provided inside the support frame. Adjustment shafts are symmetrically installed on the side walls of the bearing plate, and the adjustment shafts are movably connected to the support frame. An adjustment motor is installed on the outer wall of the support frame, and the output end of the adjustment motor is connected to a group of adjustment shafts.

2. A ventilation device for rail transit construction according to claim 1, characterized in that: A fan is installed on one side of the support frame, and an air outlet is installed on the other side of the support frame.

3. A ventilation device for rail transit construction according to claim 2, characterized in that: A second electric push rod is installed on the side wall of the support frame above the fan, and a second push arm is installed on the output end of the second electric push rod.

4. A ventilation device for rail transit construction according to claim 3, characterized in that: First electric push rods are installed on the side walls of the support frame on both sides of the second electric push rod, and the first electric push rods are movably connected to the support frame.

5. A ventilation device for rail transit construction according to claim 4, characterized in that: The output ends of the first electric push rods are all equipped with first push arms, and the tops of the air outlets are all provided with return covers.

6. A ventilation device for rail transit construction according to claim 5, characterized in that: A first pin is installed at one end of the first push arm close to the return cover, and the first push arm is movably connected to the return cover through the first pin.

7. The ventilation device for rail transit construction according to claim 5, characterized in that: The bottom ends of the return covers are symmetrically provided with rotating shafts, and the return covers are movably connected to the air outlet via the rotating shafts.

8. The ventilation device for rail transit construction according to claim 2, characterized in that: The air outlet is provided with a swing opening at a port position away from the support frame, and a lower bearing shaft is installed at the bottom end of the swing opening, and the swing opening is movably connected to the air outlet through the lower bearing shaft.

9. The ventilation device for rail transit construction according to claim 3, characterized in that: The ends of the second push arms away from the second electric push rod are all equipped with connecting arms, the ends of the connecting arms close to the second push arms are all equipped with second pin shafts, and the connecting arms are movably connected to the second push arms through the second pin shafts.

10. A ventilation device for rail transit construction according to claim 9, characterized in that: An upper bearing shaft is fixedly mounted on one end of the connecting arm close to the swing opening, and the upper bearing shaft is connected to the swing opening.

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