Temporary support for subway safety construction

Abstract

The utility model relates to the technical field of subway construction, and discloses a temporary support for subway safety construction, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a motor box, a servo motor is fixedly mounted in the motor box, and the output end of the servo motor is in spline connection with a transmission rod. According to the temporary support for subway safety construction, through the arrangement of a gear, a rack A and a rack B, the width of a bottom plate can be adjusted, a power source of a servo motor is started, the servo motor drives a transmission rod and a rotating rod A to rotate, and the gear rotates along with the transmission rod and the rotating rod A to drive the rack A and the rack B which are meshed to move relatively; at the moment, a connecting plate A and a connecting plate B drive a sliding plate A and a sliding plate B to move towards the two sides, a baffle and a rectangular plate correspondingly move, a top plate A and a top plate B are parallel to the ground through rotation of a rotating rod B and a rotating rod C, then the protection range of the device can be adjusted according to the actual situation, and therefore the device can give consideration to multiple construction areas.

Description

Technical Field

[0001] The utility model relates to the technical field of subway construction, in particular to a temporary support for safe subway construction. Background Art

[0002] Subway is an underground rail transit system, also known as urban subway, subway transportation, etc. It is a fast, high-density public transportation that provides urban residents with a convenient and efficient way of travel by running on underground rails. The advantages of subways include high capacity and speed, reduced traffic congestion, energy saving and environmental protection. However, the construction and operation of subway systems require a lot of capital and technical investment, and also face challenges in land, environment and other aspects. Therefore, the development of subways needs to comprehensively consider factors such as urban planning, traffic demand and sustainable development. During the construction or maintenance of subways, in order to ensure the stability and safety of the construction area, a series of support measures need to be taken to ensure the safety and stability of the subway construction process.

[0003] A temporary support for safe construction of subways disclosed in the publication number C217481314U drives the first fixed block to move downward through a buffer plate, so that the first fixed block and the second fixed block squeeze the spring, so that the spring buffers the downward moving buffer plate, and then acts on the surface of the third curved plate to provide secondary support for the damaged first curved plate, thereby providing time for the evacuation of construction personnel, thereby solving the technical problem that the existing support device for subway construction lacks the buffer support protection effect after being broken and damaged by pressure, and cannot provide safe time for the evacuation of construction personnel; the two sets of telescopic mechanisms are connected through the installation of the mounting plate and the support seat, and then the telescopic mechanism is controlled to drive the upper first curved plate to move upward so that the first curved plate is supported, and the force between the first curved plate and the buffer plate is detected by the pressure detection mechanism, and then the alarm is controlled to sound an alarm, so as to prompt the staff to evacuate and improve the safety of the staff.

[0004] However, the temporary support for subway safety construction has the following disadvantages:

[0005] (1) The overall width is relatively fixed and difficult to adjust. If the width of the construction area is inconsistent, it is difficult to take into account multiple construction areas;

[0006] (2) Although the side telescopic mechanism can adjust the height of the top, it lacks a protective device. If rocks fall from the side, they may injure workers. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] The technical problem solved by the utility model is to provide a temporary support for safe subway construction that is highly practical, can be simply operated, and has a relatively simple structure. It solves the problem proposed in the above-mentioned background technology that the overall width is fixed and it is difficult to take into account construction areas of different widths and that the side telescopic structure lacks a protective device, which may cause falling rocks to injure workers.

[0009] (II) Technical solution

[0010] To achieve the above purpose, the utility model is implemented through the following technical solutions: a temporary support for safe construction of subways, including a base plate, a motor box is fixedly connected to the top of the base plate, a servo motor is fixedly installed inside the motor box, the output end of the servo motor is splined to a transmission rod, one end of the transmission rod is fixedly connected to an A rotating rod, the surface of the A rotating rod is rotatably connected to a gear, the surface of the gear is meshed with an A rack, the surface of the A rack is fixedly connected to an A connecting plate, one end of the A connecting plate is fixedly connected to an A slide, the top of the A slide is fixedly connected to a slider, the gear is meshed with a B rack relative to the surface of the A rack, the surface of the B rack is fixedly connected to a B connecting plate, and one end of the B connecting plate is fixedly connected to a B slide.

[0011] Optionally, a baffle is fixedly connected to the edge of the top of the A slide, and a hydraulic rod is fixedly connected to the edge of the top of the A slide close to the baffle. The baffle can block damage such as falling rocks or dust from the side, and starting the hydraulic rod can drive the rectangular plate to move up.

[0012] Optionally, a rectangular plate is fixedly connected to the top of the hydraulic rod, and a limiting block is fixedly connected to the surface of the rectangular plate. When the rectangular plate is moved upward, it can block falling rocks from the upper side, and the limiting block prevents the rectangular plate from tilting when moving up and down.

[0013] Optionally, a first rotating hole is opened on the top of the rectangular plate, and a rotating rod B is fixedly connected to the inside of the first rotating hole. When the A slide and the B slide drive the two rectangular plates to move inward, the angle of the A top plate and the B top plate can be adjusted by rotating the B rotating rod.

[0014] Optionally, the surface of the B rotating rod is rotatably connected to the A top plate, and a second rotating hole is opened on the surface of the A top plate. The rotating hole on the surface of the A top plate fixes the C rotating rod, so that the B top plate can rotate on the surface of the C rotating rod.

[0015] Optionally, a C rotating rod is fixedly connected to the inside of the second rotating hole, and a B top plate is rotatably provided on the surface of the C rotating rod. The A top plate and the B top plate are connected through the C rotating rod, so that the angle connecting the A top plate and the B top plate can be adjusted.

[0016] (III) Beneficial effects

[0017] The utility model provides a temporary support for safe construction of subways, which has the following beneficial effects:

[0018] 1. The temporary support for safe construction of the subway can adjust the width of the bottom plate through the setting of gears, rack A and rack B. When the power of the servo motor is started, the servo motor drives the transmission rod and the A rotating rod to rotate, and the gear rotates accordingly, driving the meshing rack A and rack B to move relative to each other. At this time, the A connecting plate and the B connecting plate drive the A sliding plate and the B sliding plate to move to both sides, and the baffle and the rectangular plate move relative to each other. Through the rotation of the B rotating rod and the C rotating rod, the A top plate and the B top plate are parallel to the ground, so that the protection range of the device can be adjusted according to the actual situation, so that the device can take into account multiple construction areas.

[0019] 2. The temporary support for safe construction of the subway can protect the side through the setting of baffles, hydraulic rods and rectangular plates. The hydraulic rod is started, and the hydraulic rod drives the rectangular plate to move up, so that the height of the A top plate and the B top plate from the ground can be adjusted. The A top plate and the B top plate can block the falling rocks from the top, the baffle can block the falling rocks or dust from the lower side, and the rectangular plate can block the falling rocks or dust from the higher side, so that the protection of the staff by the device is more comprehensive and reliable, thereby making the device more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the gear structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the rectangular plate structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the baffle structure of the utility model.

[0024] In the figure: 1. bottom plate; 2. motor box; 3. servo motor; 4. transmission rod; 5. A rotating rod; 6. gear; 7. A rack; 8. A connecting plate; 9. A slide plate; 10. slider; 11. B rack; 12. B connecting plate; 13. B slide plate; 14. baffle; 15. hydraulic rod; 16. rectangular plate; 17. limit block; 18. B rotating rod; 19. A top plate; 20. C rotating rod; 21. B top plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4 The utility model provides a technical solution: a temporary support for safe construction of subway, comprising a bottom plate 1, a motor box 2 is fixedly connected to the top of the bottom plate 1, a servo motor 3 is fixedly installed inside the motor box 2, the model of the servo motor 3 is Y112M-2, the rated power is 4kw, the rated current is 8.2A, and the speed is 2890r / min. The output end of the servo motor 3 is spline-connected with a transmission rod 4, one end of the transmission rod 4 is fixedly connected with an A rotating rod 5, and the surface of the A rotating rod 5 is rotatably connected with a gear 6, through the gear 6, A The arrangement of the rack 7 and the B rack 11 enables the device to adjust the width of the bottom plate 1. The power supply of the servo motor 3 is started, and the servo motor 3 drives the transmission rod 4 and the A rotating rod 5 to rotate, and the gear 6 rotates accordingly, driving the meshing A rack 7 and the B rack 11 to move relative to each other. At this time, the A connecting plate 8 and the B connecting plate 12 drive the A slide plate 9 and the B slide plate 13 to move to both sides, and the baffle 14 and the rectangular plate 16 move relative to each other. Through the rotation of the B rotating rod 18 and the C rotating rod 20, the A top plate 19 and the B top plate 21 are parallel to the ground, thereby making the device The protection range of the device can be adjusted according to the actual situation, so that the device can take into account multiple construction areas. The surface of the gear 6 is meshed with the A rack 7, the surface of the A rack 7 is fixedly connected with the A connecting plate 8, one end of the A connecting plate 8 is fixedly connected with the A slide 9, and the top of the A slide 9 is fixedly connected with the slider 10. The surface of the gear 6 relative to the A rack 7 is meshed with the B rack 11, the surface of the B rack 11 is fixedly connected with the B connecting plate 12, and one end of the B connecting plate 12 is fixedly connected with the B slide 13. Through the baffle 14, the hydraulic rod 15 and the torque The arrangement of the rectangular plate 16 enables the device to protect the side. The hydraulic rod 15 is started, and the hydraulic rod 15 drives the rectangular plate 16 to move upward, so that the heights of the A top plate 19 and the B top plate 21 from the ground can be adjusted. The A top plate 19 and the B top plate 21 can block falling rocks from above, the baffle 14 can block falling rocks or dust from a slightly lower position on the side, and the rectangular plate 16 can block falling rocks or dust from a slightly higher position on the side, thereby making the device more comprehensive and reliable in protecting the staff, thereby making the device more practical.

[0027] The edge of the top of the A slide plate 9 is fixedly connected with a baffle plate 14, and the edge of the top of the A slide plate 9 near the baffle plate 14 is fixedly connected with a hydraulic rod 15, the model of the hydraulic rod 15 is YDS-125 / 200, the cylinder length is 380mm, and the total length is 637mm. The baffle plate 14 can block the damage of falling rocks or dust from the side, and starting the hydraulic rod 15 can drive the rectangular plate 16 to move upward;

[0028] A rectangular plate 16 is fixedly connected to the top of the hydraulic rod 15, and a limit block 17 is fixedly connected to the surface of the rectangular plate 16. When the rectangular plate 16 is moved upward, it can block the falling rocks from the upper side. The limit block 17 prevents the rectangular plate 16 from tilting when it moves up and down.

[0029] A first rotating hole is formed on the top of the rectangular plate 16, and a B rotating rod 18 is fixedly connected to the inside of the first rotating hole. When the A slide plate 9 and the B slide plate 13 drive the two rectangular plates 16 to move inward, the B rotating rod 18 rotates to adjust the angle of the A top plate 19 and the B top plate 21;

[0030] The surface of the B rotating rod 18 is rotatably connected to the A top plate 19, and a second rotating hole is opened on the surface of the A top plate 19. The rotating hole on the surface of the A top plate 19 fixes the C rotating rod 20, so that the B top plate 21 can rotate on the surface of the C rotating rod 20;

[0031] A C rotating rod 20 is fixedly connected to the inside of the second rotating hole, and a B top plate 21 is rotatably arranged on the surface of the C rotating rod 20. The A top plate 19 and the B top plate 21 are connected through the C rotating rod 20, so that the angle connecting the A top plate 19 and the B top plate 21 can be adjusted.

[0032] In the utility model, the working steps of the device are as follows:

[0033] Step 1: First, start the power supply of the servo motor 3, the servo motor 3 drives the transmission rod 4 and the A rotating rod 5 to rotate, and the gear 6 rotates accordingly, driving the meshing A rack 7 and the B rack 11 to move relative to each other, at this time, the A connecting plate 8 and the B connecting plate 12 drive the A slide plate 9 and the B slide plate 13 to move to both sides, and the baffle plate 14 and the rectangular plate 16 move relative to each other, through the rotation of the B rotating rod 18 and the C rotating rod 20, the A top plate 19 and the B top plate 21 are parallel to the ground;

[0034] Step 2: Then the servo motor 3 is rotated in the reverse direction, so that the A slide plate 9 and the B slide plate 13 move inward, and at the same time, the baffle plate 14 and the rectangular plate 16 move toward each other, and through the rotation of the B rotating rod 18 and the C rotating rod 20, the A top plate 19 and the B top plate 21 stand at the top in a triangle;

[0035] The third step: finally start the hydraulic rod 15, which drives the rectangular plate 16 to move up, and can adjust the height of the A top plate 19 and the B top plate 21 from the ground. The A top plate 19 and the B top plate 21 can block falling rocks from above, the baffle 14 can block falling rocks or dust from a slightly lower position on the side, and the rectangular plate 16 can block falling rocks or dust from a slightly higher position on the side.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary support for safe construction of a subway, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a motor box (2), a servo motor (3) is fixedly installed inside the motor box (2), the output end of the servo motor (3) is spline-connected to a transmission rod (4), one end of the transmission rod (4) is fixedly connected to an A rotating rod (5), the surface of the A rotating rod (5) is rotatably connected to a gear (6), the surface of the gear (6) is meshed with an A rack (7), the surface of the A rack (7) is fixedly connected to an A connecting plate (8), one end of the A connecting plate (8) is fixedly connected to an A slide plate (9), the top of the A slide plate (9) is fixedly connected to a slider (10), the gear (6) is meshed with a B rack (11) relative to the surface of the A rack (7), the surface of the B rack (11) is fixedly connected to a B connecting plate (12), and one end of the B connecting plate (12) is fixedly connected to a B slide plate (13).

2. A temporary support for subway safety construction according to claim 1, characterized in that: The edge of the top of the A slide plate (9) is fixedly connected to a baffle plate (14), and the edge of the top of the A slide plate (9) close to the baffle plate (14) is fixedly connected to a hydraulic rod (15).

3. A temporary support for subway safety construction according to claim 2, characterized in that: A rectangular plate (16) is fixedly connected to the top of the hydraulic rod (15), and a limiting block (17) is fixedly connected to the surface of the rectangular plate (16).

4. A temporary support for subway safety construction according to claim 3, characterized in that: A first rotating hole is formed at the top of the rectangular plate (16), and a B rotating rod (18) is fixedly connected inside the first rotating hole.

5. A temporary support for safe construction of subway according to claim 4, characterized in that: The surface of the B rotating rod (18) is rotatably connected to the A top plate (19), and a second rotating hole is opened on the surface of the A top plate (19).

6. A temporary support for safe subway construction according to claim 5, characterized in that: A C rotating rod (20) is fixedly connected to the interior of the second rotating hole, and a B top plate (21) is rotatably disposed on the surface of the C rotating rod (20).

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