Device for installing subway ventilation equipment
By extending the mobile platform with a multi-stage hydraulic telescopic rod and a motor-driven gear system, combined with a fence and a pressing and fixing mechanism, the problem of existing devices being unable to operate above the sides of the track has been solved, achieving stable positioning and efficient installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY DESIGN GRP CO LTD
- Filing Date
- 2025-05-18
- Publication Date
- 2026-05-08
AI Technical Summary
The existing subway ventilation equipment installation devices cannot be operated in the space above the tracks on both sides, making installation inconvenient.
It adopts a multi-stage hydraulic telescopic rod and a motor-driven gear system, and expands the mobile platform through a slide rail structure. Combined with a fence and a pressing and fixing mechanism, it ensures that the device is stably positioned on the track and expands the operating space.
It enables efficient installation in the space above both sides of the track, provides safety protection, and ensures that the device is stably positioned on the track, preventing movement and improving installation efficiency.
Smart Images

Figure CN224212375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of subway construction equipment technology, specifically a device for installing subway ventilation equipment. Background Technology
[0002] Subways are high-speed, high-capacity, electrically powered rail transit systems built in cities. During the construction of subways, in order to prevent the inside of subway tunnels from becoming too damp, ventilation equipment is usually installed inside the subway tunnels. In the process of installing ventilation equipment, a subway ventilation equipment installation device is required.
[0003] Currently, devices for installing ventilation equipment in subways are widely used.
[0004] A search revealed a patent document with publication number CN 217029019 U, which discloses an installation device for subway ventilation equipment. The device includes a movable base, four-stage hydraulic cylinders, an installation workbench, guardrails, a hydraulic pump station, a coupler body, subway tracks, a movable and steerable track wheel structure, a retractable stop seat structure, and a door-opening climbing frame structure. The movable base has four-stage hydraulic cylinders bolted longitudinally to its four upper corners, and the upper ends of the output rods of these cylinders are bolted to the four lower corners of the installation workbench. Guardrails are bolted to the upper perimeter of the installation workbench. A hydraulic pump station is bolted to the upper left side of the movable base, located inside the space between the four-stage hydraulic cylinders on the left side. The circular sliding groove, circular sliding block, connecting frame, bogie, rotating shaft, and track wheels of this invention facilitate easy movement of the device on the subway tracks.
[0005] While the existing technology can easily form an installation workbench to facilitate the installation of subway ventilation equipment, the device moves on the track via track wheels, which prevents it from moving to the sides of the track. This results in the inability to operate in the space above the sides during use. Therefore, a new subway ventilation equipment installation device is proposed to optimize the existing technology. Utility Model Content
[0006] The purpose of this utility model is to provide a device for installing subway ventilation equipment to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A device for installing subway ventilation equipment includes a movable base mounted on a track. Four multi-stage hydraulic telescopic rods are symmetrically and fixedly installed on the top surface of the movable base. The telescopic ends of the multi-stage hydraulic telescopic rods are all fixedly connected to a lifting plate. A fixed platform is suspended above the top surface of the lifting plate via a vertical plate. Two movable platforms are symmetrically fitted and sliding against the bottom surface of the fixed platform. Each movable platform has symmetrically fixedly connected sliding grooves on its bottom surface. Two corresponding sliding grooves are slidably connected to a slide rail, which is fixedly connected to the top surface of the lifting plate. Each movable platform has a corresponding rack fixedly connected to its bottom surface. Gears are provided between the racks, simultaneously meshing with two racks. The gears are fixedly connected to the output end of a motor, which is fixedly connected to the bottom surface of the lifting plate.
[0009] As a further embodiment of this utility model: a first fence is fixedly connected to each of the movable platforms, and two second fences are symmetrically fixedly connected to the fixed platforms. One of the second fences has a notch. A ladder extending towards the movable base is fixedly installed on the fixed platform at the corresponding notch. A door is rotatably connected to the corresponding notch on the second fence. A pin is connected through one side of the door. A round hole for the pin to pass through is opened on the door. The pin is inserted into the round hole and slides. The pin is inserted into the fixed platform.
[0010] As a further improvement of this utility model, the bottom surface of the movable base is symmetrically and rotatably equipped with two sets of track wheels, which are adapted to the track.
[0011] As a further improvement of this utility model: each of the four corners of the movable base is equipped with a pressing and fixing mechanism, which includes a guide sleeve, a pull arm, a pressing block and a threaded handle.
[0012] As a further embodiment of this utility model: the guide sleeve is fixedly connected to the side wall of the movable base, the pull arm is L-shaped and is slidably connected through the guide sleeve, the extrusion block is fixedly connected to the inner side of the bottom end of the pull arm and corresponds to the track, an anti-slip pad is fixedly connected to the side of the extrusion block corresponding to the track, the threaded handle is rotatably connected through the top edge of the pull arm, the threaded handle is inserted into the movable base and threadedly connected to the movable base, and the movable base is provided with a threaded hole for threaded connection of the threaded handle.
[0013] As a further embodiment of this utility model: a hydraulic pump station connected to a multi-stage hydraulic telescopic rod is fixedly installed on the mobile base, a mobile power supply is also fixedly installed on the mobile base, and a control switch is fixedly installed on the fixed platform. The hydraulic pump station is powered by the mobile power supply, which powers the motor. The control switch is used to control the hydraulic pump station and the motor. The motor is a self-locking motor.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The movable platform of this utility model slides on the slide rail via a sliding groove. The motor drives the gear to rotate, which in turn drives the two movable platforms to expand outward through the rack, thereby extending the movable platform to the space above the track on both sides, which facilitates the installation work in the space above the track on both sides.
[0016] 2. This utility model provides a first fence and a second fence on the top surface of the movable platform and the fixed platform, thereby achieving a protective effect.
[0017] 3. One side of the gate of this utility model rotates with the second fence, and the other side of the gate is fixed to the fixed platform by a pin. So when the workers climb up the ladder, the gate can be opened, so that they can easily climb onto the platform to carry out the installation work.
[0018] 4. The mobile base of this utility model can move along the track via the track wheels. When it is necessary to install the subway ventilation equipment, the screw handle can be rotated, and then the pull arm can drive the compression block to compress against the track, thereby fixing the device and preventing it from moving during use. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of a device for installing subway ventilation equipment.
[0020] Figure 2 This is a top-view perspective view of a device for installing subway ventilation equipment.
[0021] Figure 3 This is a cross-sectional view of a device for installing subway ventilation equipment.
[0022] Figure 4 This is a partial enlarged view of a device for installing subway ventilation equipment.
[0023] In the diagram: 1. Track; 2. Movable base; 3. Multi-stage hydraulic telescopic rod; 4. Lifting plate; 5. Fixed platform; 6. Movable platform; 7. Slide groove; 8. Slide rail; 9. Rack; 10. Gear; 11. Motor; 12. First fence; 13. Second fence; 14. Ladder; 15. Gate; 16. Pin; 17. Track wheel; 18. Guide sleeve; 19. Pull arm; 20. Extrusion block; 21. Threaded handle; 22. Hydraulic pump station; 23. Mobile power supply; 24. Control switch. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1-4 In this embodiment of the utility model, a device for installing subway ventilation equipment includes a movable base 2 set on a track 1. The movable base 2 can be pulled by a traction device. Four multi-stage hydraulic telescopic rods 3 are symmetrically and fixedly installed on the top surface of the movable base 2. The telescopic ends of the multi-stage hydraulic telescopic rods 3 are all fixedly connected to a lifting plate 4. A fixed platform 5 is suspended on the top surface of the lifting plate 4 through a vertical plate. Movable platforms 6 are symmetrically attached to the bottom sides of the fixed platform 5 and slide with it. Slide grooves 7 are symmetrically fixedly connected to the bottom surface of each movable platform 6. Two corresponding slide grooves 7 are slidably connected to a slide rail 8. The slide rail 8 is fixedly connected to the top surface of the lifting plate 4. A corresponding rack 9 is fixedly connected to the bottom surface of each movable platform 6. A gear 10 is provided between the racks 9 and simultaneously meshes with the two racks 9. The gear 10 is fixedly connected to the output end of a motor 11. The motor 11 is fixedly connected to the bottom surface of the lifting plate 4.
[0026] The movable platform 6 slides on the slide rail 8 via the slide groove 7. The motor 11 drives the gear 10 to rotate, which in turn drives the two movable platforms 6 to expand outward via the rack 9. This allows the movable platform to extend into the space above and to both sides of the track 1, facilitating installation work in the space above and to both sides of the track 1.
[0027] Each movable platform 6 is fixedly connected to a first fence 12. Two second fences 13 are symmetrically fixedly connected to the fixed platform 5. One of the second fences 13 has a notch. A ladder 14 extending to the movable base 2 is fixedly installed on the fixed platform 5 at the notch. A door 15 is rotatably connected to the second fence 13 at the notch. A pin 16 is connected through one side of the door 15. A round hole for the pin 16 to pass through is opened on the door 15. The pin 16 is inserted into the round hole and slides. The pin 16 is inserted into the fixed platform 5.
[0028] A first fence 12 and a second fence 13 are installed on the top surfaces of the movable platform 6 and the fixed platform 5, which can achieve a protective effect.
[0029] One side of the gate 15 rotates with the second fence 13, and the other side of the gate 15 is fixed to the fixed platform 5 by a pin 16. Thus, when the workers climb up the ladder 14, the gate 15 can be opened, making it convenient to climb onto the platform for installation work.
[0030] The bottom surface of the movable base 2 is symmetrically and rotatably equipped with two sets of track wheels 17, which are adapted to the track 1.
[0031] The four corners of the movable base 2 are each equipped with a pressing and fixing mechanism corresponding to the track 1. The pressing and fixing mechanism includes a guide sleeve 18, a pull arm 19, a pressing block 20, and a threaded handle 21.
[0032] The guide sleeve 18 is fixedly connected to the side wall of the movable base 2. The pull arm 19 is L-shaped and slides through the guide sleeve 18. The extrusion block 20 is fixedly connected to the inner side of the bottom end of the pull arm 19 and corresponds to the track 1. An anti-slip pad is fixedly connected to the side of the extrusion block 20 corresponding to the track 1. The threaded handle 21 is rotatably connected to the top edge of the pull arm 19. The threaded handle 21 is inserted into the movable base 2 and threadedly connected to the movable base 2. The movable base 2 has a threaded hole for threaded connection of the threaded handle 21.
[0033] The mobile base 2 can move along the track 1 via the track wheel 17. When the subway ventilation equipment needs to be installed, the screw handle 21 can be rotated, and the pull arm 19 can drive the compression block 20 to compress against the track 1, thereby fixing the device and preventing it from moving during use.
[0034] A hydraulic pump station 22 connected to a multi-stage hydraulic telescopic rod 3 is fixedly installed on the mobile base 2. A mobile power supply 23 is also fixedly installed on the mobile base 2. A control switch 24 is fixedly installed on the fixed platform 5. The hydraulic pump station 22 is powered by the mobile power supply 23, which powers the motor 11. The control switch 24 is used to control the hydraulic pump station 22 and the motor 11. The motor 11 is a self-locking motor.
[0035] The working principle of this utility model is as follows:
[0036] In use, the mobile base 2 can move along the track 1 via the track wheels 17. When the subway ventilation equipment needs to be installed, the screw handle 21 can be rotated, and the pull arm 19 can drive the pressing block 20 to press against the track 1, thereby fixing the device and preventing it from moving during use. Climbing up via the ladder 14, the latch 16 can be pulled up to open the door 15, allowing the staff to enter the fixed platform 5. After closing the door 15, the hydraulic pump station 22 can be controlled by the control switch 24 to drive the multi-stage hydraulic telescopic rod 3, which drives the lifting plate 4 to rise, facilitating the installation of the subway ventilation equipment at high altitudes. The mobile platform 6 can slide on the slide rail 8 via the slide groove 7, and the gear 10 can be rotated by the motor 11, which can then drive the two mobile platforms 6 to expand outward via the rack 9, extending the mobile platform to the space above and to both sides of the track 1, facilitating the installation work in the space above and to both sides of the track 1.
[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for installing subway ventilation equipment, comprising a movable base (2) mounted on a track (1), characterized in that: The top surface of the movable base (2) is symmetrically and fixedly installed with four multi-stage hydraulic telescopic rods (3). The telescopic ends of the multi-stage hydraulic telescopic rods (3) are fixedly connected to a lifting plate (4). The top surface of the lifting plate (4) is suspended by a vertical plate and a fixed platform (5). The bottom surfaces of the fixed platform (5) are symmetrically fitted with movable platforms (6) that slide with it. The bottom surfaces of the movable platforms (6) are symmetrically fixedly connected with sliding grooves (7). Two corresponding sliding grooves (7) are slidably connected to a slide rail (8). The slide rail (8) is fixedly connected to the top surface of the lifting plate (4). The bottom surfaces of the movable platforms (6) are fixedly connected with a corresponding rack (9). There is a gear (10) between the racks (9) that meshes with the two racks (9) at the same time. The gear (10) is fixedly connected to the output end of the motor (11). The motor (11) is fixedly connected to the bottom surface of the lifting plate (4).
2. The device for installing subway ventilation equipment according to claim 1, characterized in that: Each of the movable platform (6) is fixedly connected to a first fence (12), and two second fences (13) are symmetrically fixedly connected to the fixed platform (5). One of the second fences (13) has a notch. A ladder (14) extending to the movable base (2) is fixedly installed on the fixed platform (5) at the notch. A door (15) is rotatably connected to the second fence (13) at the notch. A pin (16) is connected through one side of the door (15) and is inserted into the fixed platform (5).
3. The device for installing subway ventilation equipment according to claim 1, characterized in that: The bottom surface of the movable base (2) is symmetrically and rotatably equipped with two sets of track wheels (17), which are adapted to the track (1).
4. The device for installing subway ventilation equipment according to claim 1, characterized in that: The four corners of the movable base (2) are each equipped with a pressing and fixing mechanism corresponding to the track (1). The pressing and fixing mechanism includes a guide sleeve (18), a pull arm (19), a pressing block (20), and a threaded handle (21).
5. The installation device for subway ventilation equipment according to claim 4, characterized in that: The guide sleeve (18) is fixedly connected to the side wall of the movable base (2). The pull arm (19) is L-shaped and slides through the guide sleeve (18). The extrusion block (20) is fixedly connected to the bottom inner side of the pull arm (19) and corresponds to the track (1). An anti-slip pad is fixedly connected to the side of the extrusion block (20) corresponding to the track (1). The threaded handle (21) is rotatably connected to the top edge of the pull arm (19). The threaded handle (21) is inserted into the movable base (2) and threadedly connected to the movable base (2).
6. The device for installing subway ventilation equipment according to claim 1, characterized in that: A hydraulic pump station (22) connected to the multi-stage hydraulic telescopic rod (3) is fixedly installed on the mobile base (2). A mobile power supply (23) is also fixedly installed on the mobile base (2). A control switch (24) is fixedly installed on the fixed platform (5).
Citation Information
Patent Citations
Device for installing subway ventilation equipment
CN217029019U